source: G950FXXS5DSI1

[GitHub/exynos8895/android_kernel_samsung_universal8895.git] / drivers / net / wireless / bcmdhd4361 / dhd_linux.c

/*
 * Broadcom Dongle Host Driver (DHD), Linux-specific network interface
 * Basically selected code segments from usb-cdc.c and usb-rndis.c
 *
 * Copyright (C) 1999-2019, Broadcom.
 *
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 *
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 *
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 *
 * <<Broadcom-WL-IPTag/Open:>>
 *
 * $Id: dhd_linux.c 818247 2019-05-07 04:15:13Z $
 */

#include <typedefs.h>
#include <linuxver.h>
#include <osl.h>
#ifdef SHOW_LOGTRACE
#include <linux/syscalls.h>
#include <event_log.h>
#endif /* SHOW_LOGTRACE */

#ifdef PCIE_FULL_DONGLE
#include <bcmmsgbuf.h>
#endif /* PCIE_FULL_DONGLE */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/inetdevice.h>
#include <linux/rtnetlink.h>
#include <linux/etherdevice.h>
#include <linux/random.h>
#include <linux/spinlock.h>
#include <linux/ethtool.h>
#include <linux/fcntl.h>
#include <linux/fs.h>
#include <linux/ip.h>
#include <linux/reboot.h>
#include <linux/notifier.h>
#include <linux/irq.h>
#include <net/addrconf.h>
#ifdef ENABLE_ADAPTIVE_SCHED
#include <linux/cpufreq.h>
#endif /* ENABLE_ADAPTIVE_SCHED */
#include <linux/rtc.h>
#ifdef DHD_DUMP_MNGR
#include <linux/namei.h>
#endif /* DHD_DUMP_MNGR */
#include <asm/uaccess.h>
#include <asm/unaligned.h>
#include <dhd_linux_priv.h>

#include <epivers.h>
#include <bcmutils.h>
#include <bcmendian.h>
#include <bcmdevs.h>
#include <bcmiov.h>

#include <ethernet.h>
#include <bcmevent.h>
#include <vlan.h>
#include <802.3.h>

#include <dhd_linux_wq.h>
#include <dhd.h>
#include <dhd_linux.h>
#ifdef DHD_WET
#include <dhd_wet.h>
#endif /* DHD_WET */
#ifdef PCIE_FULL_DONGLE
#include <dhd_flowring.h>
#endif // endif
#include <dhd_bus.h>
#include <dhd_proto.h>
#include <dhd_dbg.h>
#include <dhd_dbg_ring.h>
#include <dhd_debug.h>
#ifdef CONFIG_HAS_WAKELOCK
#include <linux/wakelock.h>
#endif // endif
#if defined(WL_CFG80211)
#include <wl_cfg80211.h>
#ifdef WL_BAM
#include <wl_bam.h>
#endif  /* WL_BAM */
#endif  /* WL_CFG80211 */
#ifdef PNO_SUPPORT
#include <dhd_pno.h>
#endif // endif
#ifdef RTT_SUPPORT
#include <dhd_rtt.h>
#endif // endif

#ifdef CONFIG_COMPAT
#include <linux/compat.h>
#endif // endif

#if defined(CONFIG_SOC_EXYNOS8895) || defined(CONFIG_SOC_EXYNOS9810)
#include <linux/exynos-pci-ctrl.h>
#endif /* CONFIG_SOC_EXYNOS8895 || CONFIG_SOC_EXYNOS9810 */

#ifdef DHD_L2_FILTER
#include <bcmicmp.h>
#include <bcm_l2_filter.h>
#include <dhd_l2_filter.h>
#endif /* DHD_L2_FILTER */

#ifdef DHD_PSTA
#include <dhd_psta.h>
#endif /* DHD_PSTA */

#ifdef AMPDU_VO_ENABLE
#include <802.1d.h>
#endif /* AMPDU_VO_ENABLE */

#if defined(DHDTCPACK_SUPPRESS) || defined(DHDTCPSYNC_FLOOD_BLK)
#include <dhd_ip.h>
#endif /* DHDTCPACK_SUPPRESS || DHDTCPSYNC_FLOOD_BLK */
#include <dhd_daemon.h>
#ifdef DHD_PKT_LOGGING
#include <dhd_pktlog.h>
#endif /* DHD_PKT_LOGGING */
#ifdef DHD_DEBUG_PAGEALLOC
typedef void (*page_corrupt_cb_t)(void *handle, void *addr_corrupt, size_t len);
void dhd_page_corrupt_cb(void *handle, void *addr_corrupt, size_t len);
extern void register_page_corrupt_cb(page_corrupt_cb_t cb, void* handle);
#endif /* DHD_DEBUG_PAGEALLOC */

#define IP_PROT_RESERVED        0xFF

#ifdef DHDTCPSYNC_FLOOD_BLK
static void dhd_blk_tsfl_handler(struct work_struct * work);
#endif /* DHDTCPSYNC_FLOOD_BLK */

#ifdef WL_NATOE
#include <dhd_linux_nfct.h>
#endif /* WL_NATOE */

#if defined(SOFTAP)
extern bool ap_cfg_running;
extern bool ap_fw_loaded;
#endif // endif

#if defined(DHD_LB)
#if defined(DHD_LB_RXP)
static void dhd_rx_napi_dispatcher_fn(struct work_struct * work);
#endif /* DHD_LB_RXP */
#if defined(DHD_LB_TXP)
static void dhd_lb_tx_handler(unsigned long data);
static void dhd_tx_dispatcher_work(struct work_struct * work);
static void dhd_tx_dispatcher_fn(dhd_pub_t *dhdp);
static void dhd_lb_tx_dispatch(dhd_pub_t *dhdp);
#endif /* DHD_LB_TXP */
#endif /* DHD_LB */

#ifdef FIX_CPU_MIN_CLOCK
#include <linux/pm_qos.h>
#endif /* FIX_CPU_MIN_CLOCK */

#ifdef SET_RANDOM_MAC_SOFTAP
#ifndef CONFIG_DHD_SET_RANDOM_MAC_VAL
#define CONFIG_DHD_SET_RANDOM_MAC_VAL   0x001A11
#endif // endif
static u32 vendor_oui = CONFIG_DHD_SET_RANDOM_MAC_VAL;
#endif /* SET_RANDOM_MAC_SOFTAP */

#ifdef ENABLE_ADAPTIVE_SCHED
#define DEFAULT_CPUFREQ_THRESH          1000000 /* threshold frequency : 1000000 = 1GHz */
#ifndef CUSTOM_CPUFREQ_THRESH
#define CUSTOM_CPUFREQ_THRESH   DEFAULT_CPUFREQ_THRESH
#endif /* CUSTOM_CPUFREQ_THRESH */
#endif /* ENABLE_ADAPTIVE_SCHED */

/* enable HOSTIP cache update from the host side when an eth0:N is up */
#define AOE_IP_ALIAS_SUPPORT 1

#ifdef PROP_TXSTATUS
#include <wlfc_proto.h>
#include <dhd_wlfc.h>
#endif // endif

#include <wl_android.h>

/* Maximum STA per radio */
#define DHD_MAX_STA     32

#ifdef DHD_EVENT_LOG_FILTER
#include <dhd_event_log_filter.h>
#endif /* DHD_EVENT_LOG_FILTER */

/*
 * Start of Host DMA whitelist region.
 */
uint32 wlreg_l = 0;
uint32 wlreg_h = 0;
module_param(wlreg_l, uint, 0644);
module_param(wlreg_h, uint, 0644);

/*
 * Sizeof whitelist region. The dongle will allow DMA to only wlreg to wlreg+wlreg_len.
 * If length of whitelist region is zero, host will not program whitelist region to dongle.
 */
uint32 wlreg_len_h = 0;
uint32 wlreg_len_l = 0;

module_param(wlreg_len_l, uint, 0644);
module_param(wlreg_len_h, uint, 0644);

const uint8 wme_fifo2ac[] = { 0, 1, 2, 3, 1, 1 };
const uint8 prio2fifo[8] = { 1, 0, 0, 1, 2, 2, 3, 3 };
#define WME_PRIO2AC(prio)  wme_fifo2ac[prio2fifo[(prio)]]

#ifdef ARP_OFFLOAD_SUPPORT
void aoe_update_host_ipv4_table(dhd_pub_t *dhd_pub, u32 ipa, bool add, int idx);
static int dhd_inetaddr_notifier_call(struct notifier_block *this,
        unsigned long event, void *ptr);
static struct notifier_block dhd_inetaddr_notifier = {
        .notifier_call = dhd_inetaddr_notifier_call
};
/* to make sure we won't register the same notifier twice, otherwise a loop is likely to be
 * created in kernel notifier link list (with 'next' pointing to itself)
 */
static bool dhd_inetaddr_notifier_registered = FALSE;
#endif /* ARP_OFFLOAD_SUPPORT */

#if defined(CONFIG_IPV6) && defined(IPV6_NDO_SUPPORT)
int dhd_inet6addr_notifier_call(struct notifier_block *this,
        unsigned long event, void *ptr);
static struct notifier_block dhd_inet6addr_notifier = {
        .notifier_call = dhd_inet6addr_notifier_call
};
/* to make sure we won't register the same notifier twice, otherwise a loop is likely to be
 * created in kernel notifier link list (with 'next' pointing to itself)
 */
static bool dhd_inet6addr_notifier_registered = FALSE;
#endif /* CONFIG_IPV6 && IPV6_NDO_SUPPORT */

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP)
#include <linux/suspend.h>
volatile bool dhd_mmc_suspend = FALSE;
DECLARE_WAIT_QUEUE_HEAD(dhd_dpc_wait);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */

#if defined(OOB_INTR_ONLY) || defined(BCMSPI_ANDROID)
extern void dhd_enable_oob_intr(struct dhd_bus *bus, bool enable);
#endif /* defined(OOB_INTR_ONLY) || defined(BCMSPI_ANDROID) */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
static void dhd_hang_process(struct work_struct *work_data);
#endif // endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0))
MODULE_LICENSE("GPL and additional rights");
#endif /* LinuxVer */

#ifdef CONFIG_BCM_DETECT_CONSECUTIVE_HANG
#define MAX_CONSECUTIVE_HANG_COUNTS 5
#endif /* CONFIG_BCM_DETECT_CONSECUTIVE_HANG */

#include <dhd_bus.h>

#ifdef DHD_ULP
#include <dhd_ulp.h>
#endif /* DHD_ULP */

#ifndef PROP_TXSTATUS
#define DBUS_RX_BUFFER_SIZE_DHD(net)    (net->mtu + net->hard_header_len + dhd->pub.hdrlen)
#else
#define DBUS_RX_BUFFER_SIZE_DHD(net)    (net->mtu + net->hard_header_len + dhd->pub.hdrlen + 128)
#endif // endif

#ifdef PROP_TXSTATUS
extern bool dhd_wlfc_skip_fc(void * dhdp, uint8 idx);
extern void dhd_wlfc_plat_init(void *dhd);
extern void dhd_wlfc_plat_deinit(void *dhd);
#endif /* PROP_TXSTATUS */
#ifdef USE_DYNAMIC_F2_BLKSIZE
extern uint sd_f2_blocksize;
extern int dhdsdio_func_blocksize(dhd_pub_t *dhd, int function_num, int block_size);
#endif /* USE_DYNAMIC_F2_BLKSIZE */

#if LINUX_VERSION_CODE == KERNEL_VERSION(2, 6, 15)
const char *
print_tainted()
{
        return "";
}
#endif  /* LINUX_VERSION_CODE == KERNEL_VERSION(2, 6, 15) */

/* Linux wireless extension support */
#if defined(WL_WIRELESS_EXT)
#include <wl_iw.h>
extern wl_iw_extra_params_t  g_wl_iw_params;
#endif /* defined(WL_WIRELESS_EXT) */

#ifdef CONFIG_PARTIALSUSPEND_SLP
#include <linux/partialsuspend_slp.h>
#define CONFIG_HAS_EARLYSUSPEND
#define DHD_USE_EARLYSUSPEND
#define register_early_suspend          register_pre_suspend
#define unregister_early_suspend        unregister_pre_suspend
#define early_suspend                           pre_suspend
#define EARLY_SUSPEND_LEVEL_BLANK_SCREEN                50
#else
#if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND)
#include <linux/earlysuspend.h>
#endif /* defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND) */
#endif /* CONFIG_PARTIALSUSPEND_SLP */

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 11, 0))
#include <linux/nl80211.h>
#endif /* OEM_ANDROID && (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 11, 0)) */

#if defined(PKT_FILTER_SUPPORT) && defined(APF)
static int __dhd_apf_add_filter(struct net_device *ndev, uint32 filter_id,
        u8* program, uint32 program_len);
static int __dhd_apf_config_filter(struct net_device *ndev, uint32 filter_id,
        uint32 mode, uint32 enable);
static int __dhd_apf_delete_filter(struct net_device *ndev, uint32 filter_id);
#endif /* PKT_FILTER_SUPPORT && APF */

#if (defined(ARGOS_CPU_SCHEDULER) && defined(ARGOS_RPS_CPU_CTL)) || \
        defined(ARGOS_NOTIFY_CB)
/* ARGOS notifer data */
static struct notifier_block argos_wifi; /* STA */
static struct notifier_block argos_p2p; /* P2P */
argos_rps_ctrl argos_rps_ctrl_data;
#ifdef DYNAMIC_MUMIMO_CONTROL
argos_mumimo_ctrl argos_mumimo_ctrl_data;
#ifdef CONFIG_SPLIT_ARGOS_SET
static struct notifier_block argos_mimo; /* STA */
#endif /* CONFIG_SPLIT_ARGOS_SET */
#endif /* DYNAMIC_MUMIMO_CONTROL */
#endif /* (ARGOS_RPS_CPU_CTL && ARGOS_CPU_SCHEDULER) || ARGOS_NOTIFY_CB */

#ifdef DHD_FW_COREDUMP
static void dhd_mem_dump(void *dhd_info, void *event_info, u8 event);
#endif /* DHD_FW_COREDUMP */

#ifdef DHD_LOG_DUMP

struct dhd_log_dump_buf g_dld_buf[DLD_BUFFER_NUM];

/* Only header for log dump buffers is stored in array
 * header for sections like 'dhd dump', 'ext trap'
 * etc, is not in the array, because they are not log
 * ring buffers
 */
dld_hdr_t dld_hdrs[DLD_BUFFER_NUM] = {
                {GENERAL_LOG_HDR, LOG_DUMP_SECTION_GENERAL},
                {PRESERVE_LOG_HDR, LOG_DUMP_SECTION_PRESERVE},
                {SPECIAL_LOG_HDR, LOG_DUMP_SECTION_SPECIAL}
};

static int dld_buf_size[DLD_BUFFER_NUM] = {
                LOG_DUMP_GENERAL_MAX_BUFSIZE,   /* DLD_BUF_TYPE_GENERAL */
                LOG_DUMP_PRESERVE_MAX_BUFSIZE,  /* DLD_BUF_TYPE_PRESERVE */
                LOG_DUMP_SPECIAL_MAX_BUFSIZE,   /* DLD_BUF_TYPE_SPECIAL */
};
static void dhd_log_dump_init(dhd_pub_t *dhd);
static void dhd_log_dump_deinit(dhd_pub_t *dhd);
static void dhd_log_dump(void *handle, void *event_info, u8 event);
static int do_dhd_log_dump(dhd_pub_t *dhdp, log_dump_type_t *type);
static void dhd_print_buf_addr(dhd_pub_t *dhdp, char *name, void *buf, unsigned int size);
#endif /* DHD_LOG_DUMP */

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
#include <linux/workqueue.h>
#include <linux/pm_runtime.h>
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */

#ifdef DHD_DEBUG_UART
#include <linux/kmod.h>
#define DHD_DEBUG_UART_EXEC_PATH        "/system/bin/wldu"
static void dhd_debug_uart_exec_rd(void *handle, void *event_info, u8 event);
static void dhd_debug_uart_exec(dhd_pub_t *dhdp, char *cmd);
#endif  /* DHD_DEBUG_UART */

static int dhd_reboot_callback(struct notifier_block *this, unsigned long code, void *unused);
static struct notifier_block dhd_reboot_notifier = {
        .notifier_call = dhd_reboot_callback,
        .priority = 1,
};

#ifdef BCMPCIE
static int is_reboot = 0;
#endif /* BCMPCIE */

dhd_pub_t       *g_dhd_pub = NULL;

#if defined(BT_OVER_SDIO)
#include "dhd_bt_interface.h"
#endif /* defined (BT_OVER_SDIO) */

#ifdef SHOW_LOGTRACE
static int dhd_trace_open_proc(struct inode *inode, struct file *file);
ssize_t dhd_trace_read_proc(struct file *file, char *buffer, size_t tt, loff_t *loff);

static const struct file_operations proc_file_fops = {
        .read = dhd_trace_read_proc,
        .open = dhd_trace_open_proc,
        .release = seq_release,
};
#endif // endif

#ifdef WL_STATIC_IF
bool dhd_is_static_ndev(dhd_pub_t *dhdp, struct net_device *ndev);
#endif /* WL_STATIC_IF */

atomic_t exit_in_progress = ATOMIC_INIT(0);

static void dhd_process_daemon_msg(struct sk_buff *skb);
static void dhd_destroy_to_notifier_skt(void);
static int dhd_create_to_notifier_skt(void);
static struct sock *nl_to_event_sk = NULL;
int sender_pid = 0;

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0))
struct netlink_kernel_cfg dhd_netlink_cfg = {
        .groups = 1,
        .input = dhd_process_daemon_msg,
};
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0)) */

#if defined(BT_OVER_SDIO)
/* Flag to indicate if driver is initialized */
uint dhd_driver_init_done = TRUE;
#else
/* Flag to indicate if driver is initialized */
uint dhd_driver_init_done = FALSE;
#endif // endif
/* Flag to indicate if we should download firmware on driver load */
uint dhd_download_fw_on_driverload = TRUE;

/* Definitions to provide path to the firmware and nvram
 * example nvram_path[MOD_PARAM_PATHLEN]="/projects/wlan/nvram.txt"
 */
char firmware_path[MOD_PARAM_PATHLEN];
char nvram_path[MOD_PARAM_PATHLEN];
char clm_path[MOD_PARAM_PATHLEN];
#ifdef DHD_UCODE_DOWNLOAD
char ucode_path[MOD_PARAM_PATHLEN];
#endif /* DHD_UCODE_DOWNLOAD */

module_param_string(clm_path, clm_path, MOD_PARAM_PATHLEN, 0660);

/* backup buffer for firmware and nvram path */
char fw_bak_path[MOD_PARAM_PATHLEN];
char nv_bak_path[MOD_PARAM_PATHLEN];

/* information string to keep firmware, chio, cheip version info visiable from log */
char info_string[MOD_PARAM_INFOLEN];
module_param_string(info_string, info_string, MOD_PARAM_INFOLEN, 0444);
int op_mode = 0;
int disable_proptx = 0;
module_param(op_mode, int, 0644);
extern int wl_control_wl_start(struct net_device *dev);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(BCMLXSDMMC)
struct semaphore dhd_registration_sem;
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */

#ifdef DHD_LOG_DUMP
int logdump_max_filesize = LOG_DUMP_MAX_FILESIZE;
module_param(logdump_max_filesize, int, 0644);
int logdump_max_bufsize = LOG_DUMP_GENERAL_MAX_BUFSIZE;
module_param(logdump_max_bufsize, int, 0644);
int logdump_prsrv_tailsize = DHD_LOG_DUMP_MAX_TAIL_FLUSH_SIZE;
int logdump_periodic_flush = FALSE;
module_param(logdump_periodic_flush, int, 0644);
#ifdef DEBUGABILITY_ECNTRS_LOGGING
int logdump_ecntr_enable = TRUE;
#else
int logdump_ecntr_enable = FALSE;
#endif /* DEBUGABILITY_ECNTRS_LOGGING */
module_param(logdump_ecntr_enable, int, 0644);
#endif /* DHD_LOG_DUMP */

/* deferred handlers */
static void dhd_ifadd_event_handler(void *handle, void *event_info, u8 event);
static void dhd_ifdel_event_handler(void *handle, void *event_info, u8 event);
static void dhd_set_mac_addr_handler(void *handle, void *event_info, u8 event);
static void dhd_set_mcast_list_handler(void *handle, void *event_info, u8 event);
#ifdef WL_NATOE
static void dhd_natoe_ct_event_hanlder(void *handle, void *event_info, u8 event);
static void dhd_natoe_ct_ioctl_handler(void *handle, void *event_info, uint8 event);
#endif /* WL_NATOE */

#if defined(CONFIG_IPV6) && defined(IPV6_NDO_SUPPORT)
static void dhd_inet6_work_handler(void *dhd_info, void *event_data, u8 event);
#endif /* CONFIG_IPV6 && IPV6_NDO_SUPPORT */
#ifdef WL_CFG80211
extern void dhd_netdev_free(struct net_device *ndev);
#endif /* WL_CFG80211 */
static dhd_if_t * dhd_get_ifp_by_ndev(dhd_pub_t *dhdp, struct net_device *ndev);

#if (defined(DHD_WET) || defined(DHD_MCAST_REGEN) || defined(DHD_L2_FILTER))
/* update rx_pkt_chainable state of dhd interface */
static void dhd_update_rx_pkt_chainable_state(dhd_pub_t* dhdp, uint32 idx);
#endif /* DHD_WET || DHD_MCAST_REGEN || DHD_L2_FILTER */

/* Error bits */
module_param(dhd_msg_level, int, 0);

#ifdef ARP_OFFLOAD_SUPPORT
/* ARP offload enable */
uint dhd_arp_enable = TRUE;
module_param(dhd_arp_enable, uint, 0);

/* ARP offload agent mode : Enable ARP Host Auto-Reply and ARP Peer Auto-Reply */

#ifdef ENABLE_ARP_SNOOP_MODE
uint dhd_arp_mode = ARP_OL_AGENT | ARP_OL_PEER_AUTO_REPLY | ARP_OL_SNOOP | ARP_OL_HOST_AUTO_REPLY;
#else
uint dhd_arp_mode = ARP_OL_AGENT | ARP_OL_PEER_AUTO_REPLY;
#endif /* ENABLE_ARP_SNOOP_MODE */

module_param(dhd_arp_mode, uint, 0);
#endif /* ARP_OFFLOAD_SUPPORT */

/* Disable Prop tx */
module_param(disable_proptx, int, 0644);
/* load firmware and/or nvram values from the filesystem */
module_param_string(firmware_path, firmware_path, MOD_PARAM_PATHLEN, 0660);
module_param_string(nvram_path, nvram_path, MOD_PARAM_PATHLEN, 0660);
#ifdef DHD_UCODE_DOWNLOAD
module_param_string(ucode_path, ucode_path, MOD_PARAM_PATHLEN, 0660);
#endif /* DHD_UCODE_DOWNLOAD */

/* wl event forwarding */
#ifdef WL_EVENT_ENAB
uint wl_event_enable = true;
#else
uint wl_event_enable = false;
#endif /* WL_EVENT_ENAB */
module_param(wl_event_enable, uint, 0660);

/* wl event forwarding */
#ifdef LOGTRACE_PKT_SENDUP
uint logtrace_pkt_sendup = true;
#else
uint logtrace_pkt_sendup = false;
#endif /* LOGTRACE_PKT_SENDUP */
module_param(logtrace_pkt_sendup, uint, 0660);

/* Watchdog interval */
/* extend watchdog expiration to 2 seconds when DPC is running */
#define WATCHDOG_EXTEND_INTERVAL (2000)

uint dhd_watchdog_ms = CUSTOM_DHD_WATCHDOG_MS;
module_param(dhd_watchdog_ms, uint, 0);

#ifdef DHD_PCIE_RUNTIMEPM
uint dhd_runtimepm_ms = CUSTOM_DHD_RUNTIME_MS;
#endif /* DHD_PCIE_RUNTIMEPMT */
#if defined(DHD_DEBUG)
/* Console poll interval */
uint dhd_console_ms = 0;
module_param(dhd_console_ms, uint, 0644);
#else
uint dhd_console_ms = 0;
#endif /* DHD_DEBUG */

uint dhd_slpauto = TRUE;
module_param(dhd_slpauto, uint, 0);

#ifdef PKT_FILTER_SUPPORT
/* Global Pkt filter enable control */
uint dhd_pkt_filter_enable = TRUE;
module_param(dhd_pkt_filter_enable, uint, 0);
#endif // endif

/* Pkt filter init setup */
uint dhd_pkt_filter_init = 0;
module_param(dhd_pkt_filter_init, uint, 0);

/* Pkt filter mode control */
#ifdef GAN_LITE_NAT_KEEPALIVE_FILTER
uint dhd_master_mode = FALSE;
#else
uint dhd_master_mode = TRUE;
#endif /* GAN_LITE_NAT_KEEPALIVE_FILTER */
module_param(dhd_master_mode, uint, 0);

int dhd_watchdog_prio = 0;
module_param(dhd_watchdog_prio, int, 0);

/* DPC thread priority */
int dhd_dpc_prio = CUSTOM_DPC_PRIO_SETTING;
module_param(dhd_dpc_prio, int, 0);

/* RX frame thread priority */
int dhd_rxf_prio = CUSTOM_RXF_PRIO_SETTING;
module_param(dhd_rxf_prio, int, 0);

#if !defined(BCMDHDUSB)
extern int dhd_dongle_ramsize;
module_param(dhd_dongle_ramsize, int, 0);
#endif /* BCMDHDUSB */

#ifdef WL_CFG80211
int passive_channel_skip = 0;
module_param(passive_channel_skip, int, (S_IRUSR|S_IWUSR));
#endif /* WL_CFG80211 */

#ifdef DHD_MSI_SUPPORT
uint enable_msi = TRUE;
module_param(enable_msi, uint, 0);
#endif /* PCIE_FULL_DONGLE */

/* Keep track of number of instances */
static int dhd_found = 0;
static int instance_base = 0; /* Starting instance number */
module_param(instance_base, int, 0644);

#if defined(DHD_LB_RXP) && defined(PCIE_FULL_DONGLE)
static int dhd_napi_weight = 32;
module_param(dhd_napi_weight, int, 0644);
#endif /* DHD_LB_RXP && PCIE_FULL_DONGLE */

#ifdef PCIE_FULL_DONGLE
extern int h2d_max_txpost;
module_param(h2d_max_txpost, int, 0644);

extern uint dma_ring_indices;
module_param(dma_ring_indices, uint, 0644);

extern bool h2d_phase;
module_param(h2d_phase, bool, 0644);
extern bool force_trap_bad_h2d_phase;
module_param(force_trap_bad_h2d_phase, bool, 0644);
#endif /* PCIE_FULL_DONGLE */

#ifdef DHD_DHCP_DUMP
struct bootp_fmt {
        struct iphdr ip_header;
        struct udphdr udp_header;
        uint8 op;
        uint8 htype;
        uint8 hlen;
        uint8 hops;
        uint32 transaction_id;
        uint16 secs;
        uint16 flags;
        uint32 client_ip;
        uint32 assigned_ip;
        uint32 server_ip;
        uint32 relay_ip;
        uint8 hw_address[16];
        uint8 server_name[64];
        uint8 file_name[128];
        uint8 options[312];
};

static const uint8 bootp_magic_cookie[4] = { 99, 130, 83, 99 };
static const char dhcp_ops[][10] = {
        "NA", "REQUEST", "REPLY"
};
static const char dhcp_types[][10] = {
        "NA", "DISCOVER", "OFFER", "REQUEST", "DECLINE", "ACK", "NAK", "RELEASE", "INFORM"
};
static void dhd_dhcp_dump(char *ifname, uint8 *pktdata, bool tx);
#endif /* DHD_DHCP_DUMP */

#ifdef DHD_ICMP_DUMP
#include <net/icmp.h>
static void dhd_icmp_dump(char *ifname, uint8 *pktdata, bool tx);
#endif /* DHD_ICMP_DUMP */

#ifdef SHOW_LOGTRACE
#if defined(CUSTOMER_HW4_DEBUG)
static char *logstrs_path = PLATFORM_PATH"logstrs.bin";
char *st_str_file_path = PLATFORM_PATH"rtecdc.bin";
static char *map_file_path = PLATFORM_PATH"rtecdc.map";
static char *rom_st_str_file_path = PLATFORM_PATH"roml.bin";
static char *rom_map_file_path = PLATFORM_PATH"roml.map";
#else
static char *logstrs_path = "/installmedia/logstrs.bin";
char *st_str_file_path = "/installmedia/rtecdc.bin";
static char *map_file_path = "/installmedia/rtecdc.map";
static char *rom_st_str_file_path = "/installmedia/roml.bin";
static char *rom_map_file_path = "/installmedia/roml.map";
#endif // endif
static char *ram_file_str = "rtecdc";
static char *rom_file_str = "roml";

module_param(logstrs_path, charp, S_IRUGO);
module_param(st_str_file_path, charp, S_IRUGO);
module_param(map_file_path, charp, S_IRUGO);
module_param(rom_st_str_file_path, charp, S_IRUGO);
module_param(rom_map_file_path, charp, S_IRUGO);

static int dhd_init_logstrs_array(osl_t *osh, dhd_event_log_t *temp);
static int dhd_read_map(osl_t *osh, char *fname, uint32 *ramstart, uint32 *rodata_start,
        uint32 *rodata_end);
static int dhd_init_static_strs_array(osl_t *osh, dhd_event_log_t *temp, char *str_file,
        char *map_file);
#endif /* SHOW_LOGTRACE */

#ifdef D2H_MINIDUMP
void dhd_d2h_minidump(dhd_pub_t *dhdp);
#endif /* D2H_MINIDUMP */

#ifdef DHDTCPSYNC_FLOOD_BLK
extern void dhd_reset_tcpsync_info_by_ifp(dhd_if_t *ifp);
#endif /* DHDTCPSYNC_FLOOD_BLK */

#if defined(DHD_LB)

static void
dhd_lb_set_default_cpus(dhd_info_t *dhd)
{
        /* Default CPU allocation for the jobs */
        atomic_set(&dhd->rx_napi_cpu, 1);
        atomic_set(&dhd->rx_compl_cpu, 2);
        atomic_set(&dhd->tx_compl_cpu, 2);
        atomic_set(&dhd->tx_cpu, 2);
        atomic_set(&dhd->net_tx_cpu, 0);
}

static void
dhd_cpumasks_deinit(dhd_info_t *dhd)
{
        free_cpumask_var(dhd->cpumask_curr_avail);
        free_cpumask_var(dhd->cpumask_primary);
        free_cpumask_var(dhd->cpumask_primary_new);
        free_cpumask_var(dhd->cpumask_secondary);
        free_cpumask_var(dhd->cpumask_secondary_new);
}

static int
dhd_cpumasks_init(dhd_info_t *dhd)
{
        int id;
        uint32 cpus, num_cpus = num_possible_cpus();
        int ret = 0;

        DHD_ERROR(("%s CPU masks primary(big)=0x%x secondary(little)=0x%x\n", __FUNCTION__,
                DHD_LB_PRIMARY_CPUS, DHD_LB_SECONDARY_CPUS));

        if (!alloc_cpumask_var(&dhd->cpumask_curr_avail, GFP_KERNEL) ||
            !alloc_cpumask_var(&dhd->cpumask_primary, GFP_KERNEL) ||
            !alloc_cpumask_var(&dhd->cpumask_primary_new, GFP_KERNEL) ||
            !alloc_cpumask_var(&dhd->cpumask_secondary, GFP_KERNEL) ||
            !alloc_cpumask_var(&dhd->cpumask_secondary_new, GFP_KERNEL)) {
                DHD_ERROR(("%s Failed to init cpumasks\n", __FUNCTION__));
                ret = -ENOMEM;
                goto fail;
        }

        cpumask_copy(dhd->cpumask_curr_avail, cpu_online_mask);
        cpumask_clear(dhd->cpumask_primary);
        cpumask_clear(dhd->cpumask_secondary);

        if (num_cpus > 32) {
                DHD_ERROR(("%s max cpus must be 32, %d too big\n", __FUNCTION__, num_cpus));
                ASSERT(0);
        }

        cpus = DHD_LB_PRIMARY_CPUS;
        for (id = 0; id < num_cpus; id++) {
                if (isset(&cpus, id))
                        cpumask_set_cpu(id, dhd->cpumask_primary);
        }

        cpus = DHD_LB_SECONDARY_CPUS;
        for (id = 0; id < num_cpus; id++) {
                if (isset(&cpus, id))
                        cpumask_set_cpu(id, dhd->cpumask_secondary);
        }

        return ret;
fail:
        dhd_cpumasks_deinit(dhd);
        return ret;
}

/*
 * The CPU Candidacy Algorithm
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~
 * The available CPUs for selection are divided into two groups
 *  Primary Set - A CPU mask that carries the First Choice CPUs
 *  Secondary Set - A CPU mask that carries the Second Choice CPUs.
 *
 * There are two types of Job, that needs to be assigned to
 * the CPUs, from one of the above mentioned CPU group. The Jobs are
 * 1) Rx Packet Processing - napi_cpu
 * 2) Completion Processiong (Tx, RX) - compl_cpu
 *
 * To begin with both napi_cpu and compl_cpu are on CPU0. Whenever a CPU goes
 * on-line/off-line the CPU candidacy algorithm is triggerd. The candidacy
 * algo tries to pickup the first available non boot CPU (CPU0) for napi_cpu.
 * If there are more processors free, it assigns one to compl_cpu.
 * It also tries to ensure that both napi_cpu and compl_cpu are not on the same
 * CPU, as much as possible.
 *
 * By design, both Tx and Rx completion jobs are run on the same CPU core, as it
 * would allow Tx completion skb's to be released into a local free pool from
 * which the rx buffer posts could have been serviced. it is important to note
 * that a Tx packet may not have a large enough buffer for rx posting.
 */
void dhd_select_cpu_candidacy(dhd_info_t *dhd)
{
        uint32 primary_available_cpus; /* count of primary available cpus */
        uint32 secondary_available_cpus; /* count of secondary available cpus */
        uint32 napi_cpu = 0; /* cpu selected for napi rx processing */
        uint32 compl_cpu = 0; /* cpu selected for completion jobs */
        uint32 tx_cpu = 0; /* cpu selected for tx processing job */

        cpumask_clear(dhd->cpumask_primary_new);
        cpumask_clear(dhd->cpumask_secondary_new);

        /*
         * Now select from the primary mask. Even if a Job is
         * already running on a CPU in secondary group, we still move
         * to primary CPU. So no conditional checks.
         */
        cpumask_and(dhd->cpumask_primary_new, dhd->cpumask_primary,
                dhd->cpumask_curr_avail);

        cpumask_and(dhd->cpumask_secondary_new, dhd->cpumask_secondary,
                dhd->cpumask_curr_avail);

        primary_available_cpus = cpumask_weight(dhd->cpumask_primary_new);

        if (primary_available_cpus > 0) {
                napi_cpu = cpumask_first(dhd->cpumask_primary_new);

                /* If no further CPU is available,
                 * cpumask_next returns >= nr_cpu_ids
                 */
                tx_cpu = cpumask_next(napi_cpu, dhd->cpumask_primary_new);
                if (tx_cpu >= nr_cpu_ids)
                        tx_cpu = 0;

                /* In case there are no more CPUs, do completions & Tx in same CPU */
                compl_cpu = cpumask_next(tx_cpu, dhd->cpumask_primary_new);
                if (compl_cpu >= nr_cpu_ids)
                        compl_cpu = tx_cpu;
        }

        DHD_INFO(("%s After primary CPU check napi_cpu %d compl_cpu %d tx_cpu %d\n",
                __FUNCTION__, napi_cpu, compl_cpu, tx_cpu));

        /* -- Now check for the CPUs from the secondary mask -- */
        secondary_available_cpus = cpumask_weight(dhd->cpumask_secondary_new);

        DHD_INFO(("%s Available secondary cpus %d nr_cpu_ids %d\n",
                __FUNCTION__, secondary_available_cpus, nr_cpu_ids));

        if (secondary_available_cpus > 0) {
                /* At this point if napi_cpu is unassigned it means no CPU
                 * is online from Primary Group
                 */
                if (napi_cpu == 0) {
                        napi_cpu = cpumask_first(dhd->cpumask_secondary_new);
                        tx_cpu = cpumask_next(napi_cpu, dhd->cpumask_secondary_new);
                        compl_cpu = cpumask_next(tx_cpu, dhd->cpumask_secondary_new);
                } else if (tx_cpu == 0) {
                        tx_cpu = cpumask_first(dhd->cpumask_secondary_new);
                        compl_cpu = cpumask_next(tx_cpu, dhd->cpumask_secondary_new);
                } else if (compl_cpu == 0) {
                        compl_cpu = cpumask_first(dhd->cpumask_secondary_new);
                }

                /* If no CPU was available for tx processing, choose CPU 0 */
                if (tx_cpu >= nr_cpu_ids)
                        tx_cpu = 0;

                /* If no CPU was available for completion, choose CPU 0 */
                if (compl_cpu >= nr_cpu_ids)
                        compl_cpu = 0;
        }
        if ((primary_available_cpus == 0) &&
                (secondary_available_cpus == 0)) {
                /* No CPUs available from primary or secondary mask */
                napi_cpu = 1;
                compl_cpu = 0;
                tx_cpu = 2;
        }

        DHD_INFO(("%s After secondary CPU check napi_cpu %d compl_cpu %d tx_cpu %d\n",
                __FUNCTION__, napi_cpu, compl_cpu, tx_cpu));

        ASSERT(napi_cpu < nr_cpu_ids);
        ASSERT(compl_cpu < nr_cpu_ids);
        ASSERT(tx_cpu < nr_cpu_ids);

        atomic_set(&dhd->rx_napi_cpu, napi_cpu);
        atomic_set(&dhd->tx_compl_cpu, compl_cpu);
        atomic_set(&dhd->rx_compl_cpu, compl_cpu);
        atomic_set(&dhd->tx_cpu, tx_cpu);

        return;
}

/*
 * Function to handle CPU Hotplug notifications.
 * One of the task it does is to trigger the CPU Candidacy algorithm
 * for load balancing.
 */
int
dhd_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
{
        unsigned long int cpu = (unsigned long int)hcpu;

#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
        dhd_info_t *dhd = container_of(nfb, dhd_info_t, cpu_notifier);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif

        if (!dhd || !(dhd->dhd_state & DHD_ATTACH_STATE_LB_ATTACH_DONE)) {
                DHD_INFO(("%s(): LB data is not initialized yet.\n",
                        __FUNCTION__));
                return NOTIFY_BAD;
        }

        switch (action)
        {
                case CPU_ONLINE:
                case CPU_ONLINE_FROZEN:
                        DHD_LB_STATS_INCR(dhd->cpu_online_cnt[cpu]);
                        cpumask_set_cpu(cpu, dhd->cpumask_curr_avail);
                        dhd_select_cpu_candidacy(dhd);
                        break;

                case CPU_DOWN_PREPARE:
                case CPU_DOWN_PREPARE_FROZEN:
                        DHD_LB_STATS_INCR(dhd->cpu_offline_cnt[cpu]);
                        cpumask_clear_cpu(cpu, dhd->cpumask_curr_avail);
                        dhd_select_cpu_candidacy(dhd);
                        break;
                default:
                        break;
        }

        return NOTIFY_OK;
}

#if defined(DHD_LB_STATS)
void dhd_lb_stats_init(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd;
        int i, j, num_cpus = num_possible_cpus();
        int alloc_size = sizeof(uint32) * num_cpus;

        if (dhdp == NULL) {
                DHD_ERROR(("%s(): Invalid argument dhd pubb pointer is NULL \n",
                        __FUNCTION__));
                return;
        }

        dhd = dhdp->info;
        if (dhd == NULL) {
                DHD_ERROR(("%s(): DHD pointer is NULL \n", __FUNCTION__));
                return;
        }

        DHD_LB_STATS_CLR(dhd->dhd_dpc_cnt);
        DHD_LB_STATS_CLR(dhd->napi_sched_cnt);

        dhd->napi_percpu_run_cnt = (uint32 *)MALLOC(dhdp->osh, alloc_size);
        if (!dhd->napi_percpu_run_cnt) {
                DHD_ERROR(("%s(): napi_percpu_run_cnt malloc failed \n",
                        __FUNCTION__));
                return;
        }
        for (i = 0; i < num_cpus; i++)
                DHD_LB_STATS_CLR(dhd->napi_percpu_run_cnt[i]);

        DHD_LB_STATS_CLR(dhd->rxc_sched_cnt);

        dhd->rxc_percpu_run_cnt = (uint32 *)MALLOC(dhdp->osh, alloc_size);
        if (!dhd->rxc_percpu_run_cnt) {
                DHD_ERROR(("%s(): rxc_percpu_run_cnt malloc failed \n",
                        __FUNCTION__));
                return;
        }
        for (i = 0; i < num_cpus; i++)
                DHD_LB_STATS_CLR(dhd->rxc_percpu_run_cnt[i]);

        DHD_LB_STATS_CLR(dhd->txc_sched_cnt);

        dhd->txc_percpu_run_cnt = (uint32 *)MALLOC(dhdp->osh, alloc_size);
        if (!dhd->txc_percpu_run_cnt) {
                DHD_ERROR(("%s(): txc_percpu_run_cnt malloc failed \n",
                        __FUNCTION__));
                return;
        }
        for (i = 0; i < num_cpus; i++)
                DHD_LB_STATS_CLR(dhd->txc_percpu_run_cnt[i]);

        dhd->cpu_online_cnt = (uint32 *)MALLOC(dhdp->osh, alloc_size);
        if (!dhd->cpu_online_cnt) {
                DHD_ERROR(("%s(): cpu_online_cnt malloc failed \n",
                        __FUNCTION__));
                return;
        }
        for (i = 0; i < num_cpus; i++)
                DHD_LB_STATS_CLR(dhd->cpu_online_cnt[i]);

        dhd->cpu_offline_cnt = (uint32 *)MALLOC(dhdp->osh, alloc_size);
        if (!dhd->cpu_offline_cnt) {
                DHD_ERROR(("%s(): cpu_offline_cnt malloc failed \n",
                        __FUNCTION__));
                return;
        }
        for (i = 0; i < num_cpus; i++)
                DHD_LB_STATS_CLR(dhd->cpu_offline_cnt[i]);

        dhd->txp_percpu_run_cnt = (uint32 *)MALLOC(dhdp->osh, alloc_size);
        if (!dhd->txp_percpu_run_cnt) {
                DHD_ERROR(("%s(): txp_percpu_run_cnt malloc failed \n",
                        __FUNCTION__));
                return;
        }
        for (i = 0; i < num_cpus; i++)
                DHD_LB_STATS_CLR(dhd->txp_percpu_run_cnt[i]);

        dhd->tx_start_percpu_run_cnt = (uint32 *)MALLOC(dhdp->osh, alloc_size);
        if (!dhd->tx_start_percpu_run_cnt) {
                DHD_ERROR(("%s(): tx_start_percpu_run_cnt malloc failed \n",
                        __FUNCTION__));
                return;
        }
        for (i = 0; i < num_cpus; i++)
                DHD_LB_STATS_CLR(dhd->tx_start_percpu_run_cnt[i]);

        for (j = 0; j < HIST_BIN_SIZE; j++) {
                dhd->napi_rx_hist[j] = (uint32 *)MALLOC(dhdp->osh, alloc_size);
                if (!dhd->napi_rx_hist[j]) {
                        DHD_ERROR(("%s(): dhd->napi_rx_hist[%d] malloc failed \n",
                                __FUNCTION__, j));
                        return;
                }
                for (i = 0; i < num_cpus; i++) {
                        DHD_LB_STATS_CLR(dhd->napi_rx_hist[j][i]);
                }
        }
#ifdef DHD_LB_TXC
        for (j = 0; j < HIST_BIN_SIZE; j++) {
                dhd->txc_hist[j] = (uint32 *)MALLOC(dhdp->osh, alloc_size);
                if (!dhd->txc_hist[j]) {
                        DHD_ERROR(("%s(): dhd->txc_hist[%d] malloc failed \n",
                                 __FUNCTION__, j));
                        return;
                }
                for (i = 0; i < num_cpus; i++) {
                        DHD_LB_STATS_CLR(dhd->txc_hist[j][i]);
                }
        }
#endif /* DHD_LB_TXC */
#ifdef DHD_LB_RXC
        for (j = 0; j < HIST_BIN_SIZE; j++) {
                dhd->rxc_hist[j] = (uint32 *)MALLOC(dhdp->osh, alloc_size);
                if (!dhd->rxc_hist[j]) {
                        DHD_ERROR(("%s(): dhd->rxc_hist[%d] malloc failed \n",
                                __FUNCTION__, j));
                        return;
                }
                for (i = 0; i < num_cpus; i++) {
                        DHD_LB_STATS_CLR(dhd->rxc_hist[j][i]);
                }
        }
#endif /* DHD_LB_RXC */
        return;
}

void dhd_lb_stats_deinit(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd;
        int j, num_cpus = num_possible_cpus();
        int alloc_size = sizeof(uint32) * num_cpus;

        if (dhdp == NULL) {
                DHD_ERROR(("%s(): Invalid argument dhd pubb pointer is NULL \n",
                        __FUNCTION__));
                return;
        }

        dhd = dhdp->info;
        if (dhd == NULL) {
                DHD_ERROR(("%s(): DHD pointer is NULL \n", __FUNCTION__));
                return;
        }

        if (dhd->napi_percpu_run_cnt) {
                MFREE(dhdp->osh, dhd->napi_percpu_run_cnt, alloc_size);
                dhd->napi_percpu_run_cnt = NULL;
        }
        if (dhd->rxc_percpu_run_cnt) {
                MFREE(dhdp->osh, dhd->rxc_percpu_run_cnt, alloc_size);
                dhd->rxc_percpu_run_cnt = NULL;
        }
        if (dhd->txc_percpu_run_cnt) {
                MFREE(dhdp->osh, dhd->txc_percpu_run_cnt, alloc_size);
                dhd->txc_percpu_run_cnt = NULL;
        }
        if (dhd->cpu_online_cnt) {
                MFREE(dhdp->osh, dhd->cpu_online_cnt, alloc_size);
                dhd->cpu_online_cnt = NULL;
        }
        if (dhd->cpu_offline_cnt) {
                MFREE(dhdp->osh, dhd->cpu_offline_cnt, alloc_size);
                dhd->cpu_offline_cnt = NULL;
        }

        if (dhd->txp_percpu_run_cnt) {
                MFREE(dhdp->osh, dhd->txp_percpu_run_cnt, alloc_size);
                dhd->txp_percpu_run_cnt = NULL;
        }
        if (dhd->tx_start_percpu_run_cnt) {
                MFREE(dhdp->osh, dhd->tx_start_percpu_run_cnt, alloc_size);
                dhd->tx_start_percpu_run_cnt = NULL;
        }

        for (j = 0; j < HIST_BIN_SIZE; j++) {
                if (dhd->napi_rx_hist[j]) {
                        MFREE(dhdp->osh, dhd->napi_rx_hist[j], alloc_size);
                        dhd->napi_rx_hist[j] = NULL;
                }
#ifdef DHD_LB_TXC
                if (dhd->txc_hist[j]) {
                        MFREE(dhdp->osh, dhd->txc_hist[j], alloc_size);
                        dhd->txc_hist[j] = NULL;
                }
#endif /* DHD_LB_TXC */
#ifdef DHD_LB_RXC
                if (dhd->rxc_hist[j]) {
                        MFREE(dhdp->osh, dhd->rxc_hist[j], alloc_size);
                        dhd->rxc_hist[j] = NULL;
                }
#endif /* DHD_LB_RXC */
        }

        return;
}

static void dhd_lb_stats_dump_histo(dhd_pub_t *dhdp,
        struct bcmstrbuf *strbuf, uint32 **hist)
{
        int i, j;
        uint32 *per_cpu_total;
        uint32 total = 0;
        uint32 num_cpus = num_possible_cpus();

        per_cpu_total = (uint32 *)MALLOC(dhdp->osh, sizeof(uint32) * num_cpus);
        if (!per_cpu_total) {
                DHD_ERROR(("%s(): dhd->per_cpu_total malloc failed \n", __FUNCTION__));
                return;
        }
        bzero(per_cpu_total, sizeof(uint32) * num_cpus);

        bcm_bprintf(strbuf, "CPU: \t\t");
        for (i = 0; i < num_cpus; i++)
                bcm_bprintf(strbuf, "%d\t", i);
        bcm_bprintf(strbuf, "\nBin\n");

        for (i = 0; i < HIST_BIN_SIZE; i++) {
                bcm_bprintf(strbuf, "%d:\t\t", 1<<i);
                for (j = 0; j < num_cpus; j++) {
                        bcm_bprintf(strbuf, "%d\t", hist[i][j]);
                }
                bcm_bprintf(strbuf, "\n");
        }
        bcm_bprintf(strbuf, "Per CPU Total \t");
        total = 0;
        for (i = 0; i < num_cpus; i++) {
                for (j = 0; j < HIST_BIN_SIZE; j++) {
                        per_cpu_total[i] += (hist[j][i] * (1<<j));
                }
                bcm_bprintf(strbuf, "%d\t", per_cpu_total[i]);
                total += per_cpu_total[i];
        }
        bcm_bprintf(strbuf, "\nTotal\t\t%d \n", total);

        if (per_cpu_total) {
                MFREE(dhdp->osh, per_cpu_total, sizeof(uint32) * num_cpus);
                per_cpu_total = NULL;
        }
        return;
}

static inline void dhd_lb_stats_dump_cpu_array(struct bcmstrbuf *strbuf, uint32 *p)
{
        int i, num_cpus = num_possible_cpus();

        bcm_bprintf(strbuf, "CPU: \t");
        for (i = 0; i < num_cpus; i++)
                bcm_bprintf(strbuf, "%d\t", i);
        bcm_bprintf(strbuf, "\n");

        bcm_bprintf(strbuf, "Val: \t");
        for (i = 0; i < num_cpus; i++)
                bcm_bprintf(strbuf, "%u\t", *(p+i));
        bcm_bprintf(strbuf, "\n");
        return;
}

void dhd_lb_stats_dump(dhd_pub_t *dhdp, struct bcmstrbuf *strbuf)
{
        dhd_info_t *dhd;

        if (dhdp == NULL || strbuf == NULL) {
                DHD_ERROR(("%s(): Invalid argument dhdp %p strbuf %p \n",
                        __FUNCTION__, dhdp, strbuf));
                return;
        }

        dhd = dhdp->info;
        if (dhd == NULL) {
                DHD_ERROR(("%s(): DHD pointer is NULL \n", __FUNCTION__));
                return;
        }

        bcm_bprintf(strbuf, "\ncpu_online_cnt:\n");
        dhd_lb_stats_dump_cpu_array(strbuf, dhd->cpu_online_cnt);

        bcm_bprintf(strbuf, "\ncpu_offline_cnt:\n");
        dhd_lb_stats_dump_cpu_array(strbuf, dhd->cpu_offline_cnt);

        bcm_bprintf(strbuf, "\nsched_cnt: dhd_dpc %u napi %u rxc %u txc %u\n",
                dhd->dhd_dpc_cnt, dhd->napi_sched_cnt, dhd->rxc_sched_cnt,
                dhd->txc_sched_cnt);

#ifdef DHD_LB_RXP
        bcm_bprintf(strbuf, "\nnapi_percpu_run_cnt:\n");
        dhd_lb_stats_dump_cpu_array(strbuf, dhd->napi_percpu_run_cnt);
        bcm_bprintf(strbuf, "\nNAPI Packets Received Histogram:\n");
        dhd_lb_stats_dump_histo(dhdp, strbuf, dhd->napi_rx_hist);
#endif /* DHD_LB_RXP */

#ifdef DHD_LB_RXC
        bcm_bprintf(strbuf, "\nrxc_percpu_run_cnt:\n");
        dhd_lb_stats_dump_cpu_array(strbuf, dhd->rxc_percpu_run_cnt);
        bcm_bprintf(strbuf, "\nRX Completions (Buffer Post) Histogram:\n");
        dhd_lb_stats_dump_histo(dhdp, strbuf, dhd->rxc_hist);
#endif /* DHD_LB_RXC */

#ifdef DHD_LB_TXC
        bcm_bprintf(strbuf, "\ntxc_percpu_run_cnt:\n");
        dhd_lb_stats_dump_cpu_array(strbuf, dhd->txc_percpu_run_cnt);
        bcm_bprintf(strbuf, "\nTX Completions (Buffer Free) Histogram:\n");
        dhd_lb_stats_dump_histo(dhdp, strbuf, dhd->txc_hist);
#endif /* DHD_LB_TXC */

#ifdef DHD_LB_TXP
        bcm_bprintf(strbuf, "\ntxp_percpu_run_cnt:\n");
        dhd_lb_stats_dump_cpu_array(strbuf, dhd->txp_percpu_run_cnt);

        bcm_bprintf(strbuf, "\ntx_start_percpu_run_cnt:\n");
        dhd_lb_stats_dump_cpu_array(strbuf, dhd->tx_start_percpu_run_cnt);
#endif /* DHD_LB_TXP */
}

/* Given a number 'n' returns 'm' that is next larger power of 2 after n */
static inline uint32 next_larger_power2(uint32 num)
{
        num--;
        num |= (num >> 1);
        num |= (num >> 2);
        num |= (num >> 4);
        num |= (num >> 8);
        num |= (num >> 16);

        return (num + 1);
}

static void dhd_lb_stats_update_histo(uint32 **bin, uint32 count, uint32 cpu)
{
        uint32 bin_power;
        uint32 *p;
        bin_power = next_larger_power2(count);

        switch (bin_power) {
                case   1: p = bin[0] + cpu; break;
                case   2: p = bin[1] + cpu; break;
                case   4: p = bin[2] + cpu; break;
                case   8: p = bin[3] + cpu; break;
                case  16: p = bin[4] + cpu; break;
                case  32: p = bin[5] + cpu; break;
                case  64: p = bin[6] + cpu; break;
                case 128: p = bin[7] + cpu; break;
                default : p = bin[8] + cpu; break;
        }

        *p = *p + 1;
        return;
}

extern void dhd_lb_stats_update_napi_histo(dhd_pub_t *dhdp, uint32 count)
{
        int cpu;
        dhd_info_t *dhd = dhdp->info;

        cpu = get_cpu();
        put_cpu();
        dhd_lb_stats_update_histo(dhd->napi_rx_hist, count, cpu);

        return;
}

extern void dhd_lb_stats_update_txc_histo(dhd_pub_t *dhdp, uint32 count)
{
        int cpu;
        dhd_info_t *dhd = dhdp->info;

        cpu = get_cpu();
        put_cpu();
        dhd_lb_stats_update_histo(dhd->txc_hist, count, cpu);

        return;
}

extern void dhd_lb_stats_update_rxc_histo(dhd_pub_t *dhdp, uint32 count)
{
        int cpu;
        dhd_info_t *dhd = dhdp->info;

        cpu = get_cpu();
        put_cpu();
        dhd_lb_stats_update_histo(dhd->rxc_hist, count, cpu);

        return;
}

extern void dhd_lb_stats_txc_percpu_cnt_incr(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd = dhdp->info;
        DHD_LB_STATS_PERCPU_ARR_INCR(dhd->txc_percpu_run_cnt);
}

extern void dhd_lb_stats_rxc_percpu_cnt_incr(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd = dhdp->info;
        DHD_LB_STATS_PERCPU_ARR_INCR(dhd->rxc_percpu_run_cnt);
}
#endif /* DHD_LB_STATS */

#endif /* DHD_LB */

#ifdef USE_WFA_CERT_CONF
int g_frameburst = 1;
#endif /* USE_WFA_CERT_CONF */

static int dhd_get_pend_8021x_cnt(dhd_info_t *dhd);

/* DHD Perimiter lock only used in router with bypass forwarding. */
#define DHD_PERIM_RADIO_INIT()              do { /* noop */ } while (0)
#define DHD_PERIM_LOCK_TRY(unit, flag)      do { /* noop */ } while (0)
#define DHD_PERIM_UNLOCK_TRY(unit, flag)    do { /* noop */ } while (0)

#ifdef PCIE_FULL_DONGLE
#define DHD_IF_STA_LIST_LOCK_INIT(ifp) spin_lock_init(&(ifp)->sta_list_lock)
#define DHD_IF_STA_LIST_LOCK(ifp, flags) \
        spin_lock_irqsave(&(ifp)->sta_list_lock, (flags))
#define DHD_IF_STA_LIST_UNLOCK(ifp, flags) \
        spin_unlock_irqrestore(&(ifp)->sta_list_lock, (flags))

#if defined(DHD_IGMP_UCQUERY) || defined(DHD_UCAST_UPNP)
static struct list_head * dhd_sta_list_snapshot(dhd_info_t *dhd, dhd_if_t *ifp,
        struct list_head *snapshot_list);
static void dhd_sta_list_snapshot_free(dhd_info_t *dhd, struct list_head *snapshot_list);
#define DHD_IF_WMF_UCFORWARD_LOCK(dhd, ifp, slist) ({ dhd_sta_list_snapshot(dhd, ifp, slist); })
#define DHD_IF_WMF_UCFORWARD_UNLOCK(dhd, slist) ({ dhd_sta_list_snapshot_free(dhd, slist); })
#endif /* DHD_IGMP_UCQUERY || DHD_UCAST_UPNP */
#endif /* PCIE_FULL_DONGLE */

/* Control fw roaming */
#ifdef BCMCCX
uint dhd_roam_disable = 0;
#else
uint dhd_roam_disable = 0;
#endif /* BCMCCX */

#ifdef BCMDBGFS
extern void dhd_dbgfs_init(dhd_pub_t *dhdp);
extern void dhd_dbgfs_remove(void);
#endif // endif

static uint pcie_txs_metadata_enable = 0;       /* Enable TX status metadta report */
module_param(pcie_txs_metadata_enable, int, 0);

/* Control radio state */
uint dhd_radio_up = 1;

/* Network inteface name */
char iface_name[IFNAMSIZ] = {'\0'};
module_param_string(iface_name, iface_name, IFNAMSIZ, 0);

/* The following are specific to the SDIO dongle */

/* IOCTL response timeout */
int dhd_ioctl_timeout_msec = IOCTL_RESP_TIMEOUT;

/* DS Exit response timeout */
int ds_exit_timeout_msec = DS_EXIT_TIMEOUT;

/* Idle timeout for backplane clock */
int dhd_idletime = DHD_IDLETIME_TICKS;
module_param(dhd_idletime, int, 0);

/* Use polling */
uint dhd_poll = FALSE;
module_param(dhd_poll, uint, 0);

/* Use interrupts */
uint dhd_intr = TRUE;
module_param(dhd_intr, uint, 0);

/* SDIO Drive Strength (in milliamps) */
uint dhd_sdiod_drive_strength = 6;
module_param(dhd_sdiod_drive_strength, uint, 0);

#ifdef BCMSDIO
/* Tx/Rx bounds */
extern uint dhd_txbound;
extern uint dhd_rxbound;
module_param(dhd_txbound, uint, 0);
module_param(dhd_rxbound, uint, 0);

/* Deferred transmits */
extern uint dhd_deferred_tx;
module_param(dhd_deferred_tx, uint, 0);

#endif /* BCMSDIO */

#ifdef SDTEST
/* Echo packet generator (pkts/s) */
uint dhd_pktgen = 0;
module_param(dhd_pktgen, uint, 0);

/* Echo packet len (0 => sawtooth, max 2040) */
uint dhd_pktgen_len = 0;
module_param(dhd_pktgen_len, uint, 0);
#endif /* SDTEST */

#if defined(BCMSUP_4WAY_HANDSHAKE)
/* Use in dongle supplicant for 4-way handshake */
#if defined(WLFBT) || defined(WL_ENABLE_IDSUP)
/* Enable idsup by default (if supported in fw) */
uint dhd_use_idsup = 1;
#else
uint dhd_use_idsup = 0;
#endif /* WLFBT || WL_ENABLE_IDSUP */
module_param(dhd_use_idsup, uint, 0);
#endif /* BCMSUP_4WAY_HANDSHAKE */

/* Allow delayed firmware download for debug purpose */
int allow_delay_fwdl = FALSE;
module_param(allow_delay_fwdl, int, 0);

#ifdef ECOUNTER_PERIODIC_DISABLE
uint enable_ecounter = FALSE;
#else
uint enable_ecounter = TRUE;
#endif // endif
module_param(enable_ecounter, uint, 0);

extern char dhd_version[];
extern char fw_version[];
extern char clm_version[];

int dhd_net_bus_devreset(struct net_device *dev, uint8 flag);
static void dhd_net_if_lock_local(dhd_info_t *dhd);
static void dhd_net_if_unlock_local(dhd_info_t *dhd);
static void dhd_suspend_lock(dhd_pub_t *dhdp);
static void dhd_suspend_unlock(dhd_pub_t *dhdp);

/* Monitor interface */
int dhd_monitor_init(void *dhd_pub);
int dhd_monitor_uninit(void);

#ifdef DHD_PM_CONTROL_FROM_FILE
bool g_pm_control;
#ifdef DHD_EXPORT_CNTL_FILE
int pmmode_val;
#endif /* DHD_EXPORT_CNTL_FILE */
void sec_control_pm(dhd_pub_t *dhd, uint *);
#endif /* DHD_PM_CONTROL_FROM_FILE */

#if defined(WL_WIRELESS_EXT)
struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev);
#endif /* defined(WL_WIRELESS_EXT) */

static void dhd_dpc(ulong data);
/* forward decl */
extern int dhd_wait_pend8021x(struct net_device *dev);
void dhd_os_wd_timer_extend(void *bus, bool extend);

#ifdef TOE
#ifndef BDC
#error TOE requires BDC
#endif /* !BDC */
static int dhd_toe_get(dhd_info_t *dhd, int idx, uint32 *toe_ol);
static int dhd_toe_set(dhd_info_t *dhd, int idx, uint32 toe_ol);
#endif /* TOE */

static int dhd_wl_host_event(dhd_info_t *dhd, int ifidx, void *pktdata, uint16 pktlen,
                wl_event_msg_t *event_ptr, void **data_ptr);

#if defined(CONFIG_PM_SLEEP)
static int dhd_pm_callback(struct notifier_block *nfb, unsigned long action, void *ignored)
{
        int ret = NOTIFY_DONE;
        bool suspend = FALSE;

#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
        dhd_info_t *dhdinfo = (dhd_info_t*)container_of(nfb, struct dhd_info, pm_notifier);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif

        BCM_REFERENCE(dhdinfo);
        BCM_REFERENCE(suspend);

        switch (action) {
        case PM_HIBERNATION_PREPARE:
        case PM_SUSPEND_PREPARE:
                suspend = TRUE;
                break;

        case PM_POST_HIBERNATION:
        case PM_POST_SUSPEND:
                suspend = FALSE;
                break;
        }

#if defined(SUPPORT_P2P_GO_PS) && defined(PROP_TXSTATUS)
        if (suspend) {
                DHD_OS_WAKE_LOCK_WAIVE(&dhdinfo->pub);
                dhd_wlfc_suspend(&dhdinfo->pub);
                DHD_OS_WAKE_LOCK_RESTORE(&dhdinfo->pub);
        } else {
                dhd_wlfc_resume(&dhdinfo->pub);
        }
#endif /* defined(SUPPORT_P2P_GO_PS) && defined(PROP_TXSTATUS) */

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && (LINUX_VERSION_CODE <= \
        KERNEL_VERSION(2, 6, 39))
        dhd_mmc_suspend = suspend;
        smp_mb();
#endif // endif

        return ret;
}

/* to make sure we won't register the same notifier twice, otherwise a loop is likely to be
 * created in kernel notifier link list (with 'next' pointing to itself)
 */
static bool dhd_pm_notifier_registered = FALSE;

extern int register_pm_notifier(struct notifier_block *nb);
extern int unregister_pm_notifier(struct notifier_block *nb);
#endif /* CONFIG_PM_SLEEP */

/* Request scheduling of the bus rx frame */
static void dhd_sched_rxf(dhd_pub_t *dhdp, void *skb);
static void dhd_os_rxflock(dhd_pub_t *pub);
static void dhd_os_rxfunlock(dhd_pub_t *pub);

/** priv_link is the link between netdev and the dhdif and dhd_info structs. */
typedef struct dhd_dev_priv {
        dhd_info_t * dhd; /* cached pointer to dhd_info in netdevice priv */
        dhd_if_t   * ifp; /* cached pointer to dhd_if in netdevice priv */
        int          ifidx; /* interface index */
        void       * lkup;
} dhd_dev_priv_t;

#define DHD_DEV_PRIV_SIZE       (sizeof(dhd_dev_priv_t))
#define DHD_DEV_PRIV(dev)       ((dhd_dev_priv_t *)DEV_PRIV(dev))
#define DHD_DEV_INFO(dev)       (((dhd_dev_priv_t *)DEV_PRIV(dev))->dhd)
#define DHD_DEV_IFP(dev)        (((dhd_dev_priv_t *)DEV_PRIV(dev))->ifp)
#define DHD_DEV_IFIDX(dev)      (((dhd_dev_priv_t *)DEV_PRIV(dev))->ifidx)
#define DHD_DEV_LKUP(dev)               (((dhd_dev_priv_t *)DEV_PRIV(dev))->lkup)

#if defined(DHD_OF_SUPPORT)
extern int dhd_wlan_init(void);
#endif /* defined(DHD_OF_SUPPORT) */
/** Clear the dhd net_device's private structure. */
static inline void
dhd_dev_priv_clear(struct net_device * dev)
{
        dhd_dev_priv_t * dev_priv;
        ASSERT(dev != (struct net_device *)NULL);
        dev_priv = DHD_DEV_PRIV(dev);
        dev_priv->dhd = (dhd_info_t *)NULL;
        dev_priv->ifp = (dhd_if_t *)NULL;
        dev_priv->ifidx = DHD_BAD_IF;
        dev_priv->lkup = (void *)NULL;
}

/** Setup the dhd net_device's private structure. */
static inline void
dhd_dev_priv_save(struct net_device * dev, dhd_info_t * dhd, dhd_if_t * ifp,
                  int ifidx)
{
        dhd_dev_priv_t * dev_priv;
        ASSERT(dev != (struct net_device *)NULL);
        dev_priv = DHD_DEV_PRIV(dev);
        dev_priv->dhd = dhd;
        dev_priv->ifp = ifp;
        dev_priv->ifidx = ifidx;
}

/* Return interface pointer */
static inline dhd_if_t *dhd_get_ifp(dhd_pub_t *dhdp, uint32 ifidx)
{
        ASSERT(ifidx < DHD_MAX_IFS);

        if (ifidx >= DHD_MAX_IFS)
                return NULL;

        return dhdp->info->iflist[ifidx];
}

#ifdef PCIE_FULL_DONGLE

/** Dummy objects are defined with state representing bad|down.
 * Performance gains from reducing branch conditionals, instruction parallelism,
 * dual issue, reducing load shadows, avail of larger pipelines.
 * Use DHD_XXX_NULL instead of (dhd_xxx_t *)NULL, whenever an object pointer
 * is accessed via the dhd_sta_t.
 */

/* Dummy dhd_info object */
dhd_info_t dhd_info_null = {
        .pub = {
                 .info = &dhd_info_null,
#ifdef DHDTCPACK_SUPPRESS
                 .tcpack_sup_mode = TCPACK_SUP_REPLACE,
#endif /* DHDTCPACK_SUPPRESS */
                 .up = FALSE,
                 .busstate = DHD_BUS_DOWN
        }
};
#define DHD_INFO_NULL (&dhd_info_null)
#define DHD_PUB_NULL  (&dhd_info_null.pub)

/* Dummy netdevice object */
struct net_device dhd_net_dev_null = {
        .reg_state = NETREG_UNREGISTERED
};
#define DHD_NET_DEV_NULL (&dhd_net_dev_null)

/* Dummy dhd_if object */
dhd_if_t dhd_if_null = {
#ifdef WMF
        .wmf = { .wmf_enable = TRUE },
#endif // endif
        .info = DHD_INFO_NULL,
        .net = DHD_NET_DEV_NULL,
        .idx = DHD_BAD_IF
};
#define DHD_IF_NULL  (&dhd_if_null)

#define DHD_STA_NULL ((dhd_sta_t *)NULL)

/** Interface STA list management. */

/** Alloc/Free a dhd_sta object from the dhd instances' sta_pool. */
static void dhd_sta_free(dhd_pub_t *pub, dhd_sta_t *sta);
static dhd_sta_t * dhd_sta_alloc(dhd_pub_t * dhdp);

/* Delete a dhd_sta or flush all dhd_sta in an interface's sta_list. */
static void dhd_if_del_sta_list(dhd_if_t * ifp);
static void     dhd_if_flush_sta(dhd_if_t * ifp);

/* Construct/Destruct a sta pool. */
static int dhd_sta_pool_init(dhd_pub_t *dhdp, int max_sta);
static void dhd_sta_pool_fini(dhd_pub_t *dhdp, int max_sta);
/* Clear the pool of dhd_sta_t objects for built-in type driver */
static void dhd_sta_pool_clear(dhd_pub_t *dhdp, int max_sta);

/** Reset a dhd_sta object and free into the dhd pool. */
static void
dhd_sta_free(dhd_pub_t * dhdp, dhd_sta_t * sta)
{
        int prio;

        ASSERT((sta != DHD_STA_NULL) && (sta->idx != ID16_INVALID));

        ASSERT((dhdp->staid_allocator != NULL) && (dhdp->sta_pool != NULL));

        /*
         * Flush and free all packets in all flowring's queues belonging to sta.
         * Packets in flow ring will be flushed later.
         */
        for (prio = 0; prio < (int)NUMPRIO; prio++) {
                uint16 flowid = sta->flowid[prio];

                if (flowid != FLOWID_INVALID) {
                        unsigned long flags;
                        flow_ring_node_t * flow_ring_node;

#ifdef DHDTCPACK_SUPPRESS
                        /* Clean tcp_ack_info_tbl in order to prevent access to flushed pkt,
                         * when there is a newly coming packet from network stack.
                         */
                        dhd_tcpack_info_tbl_clean(dhdp);
#endif /* DHDTCPACK_SUPPRESS */

                        flow_ring_node = dhd_flow_ring_node(dhdp, flowid);
                        if (flow_ring_node) {
                                flow_queue_t *queue = &flow_ring_node->queue;

                                DHD_FLOWRING_LOCK(flow_ring_node->lock, flags);
                                flow_ring_node->status = FLOW_RING_STATUS_STA_FREEING;

                                if (!DHD_FLOW_QUEUE_EMPTY(queue)) {
                                        void * pkt;
                                        while ((pkt = dhd_flow_queue_dequeue(dhdp, queue)) !=
                                                NULL) {
                                                PKTFREE(dhdp->osh, pkt, TRUE);
                                        }
                                }

                                DHD_FLOWRING_UNLOCK(flow_ring_node->lock, flags);
                                ASSERT(DHD_FLOW_QUEUE_EMPTY(queue));
                        }
                }

                sta->flowid[prio] = FLOWID_INVALID;
        }

        id16_map_free(dhdp->staid_allocator, sta->idx);
        DHD_CUMM_CTR_INIT(&sta->cumm_ctr);
        sta->ifp = DHD_IF_NULL; /* dummy dhd_if object */
        sta->ifidx = DHD_BAD_IF;
        bzero(sta->ea.octet, ETHER_ADDR_LEN);
        INIT_LIST_HEAD(&sta->list);
        sta->idx = ID16_INVALID; /* implying free */
}

/** Allocate a dhd_sta object from the dhd pool. */
static dhd_sta_t *
dhd_sta_alloc(dhd_pub_t * dhdp)
{
        uint16 idx;
        dhd_sta_t * sta;
        dhd_sta_pool_t * sta_pool;

        ASSERT((dhdp->staid_allocator != NULL) && (dhdp->sta_pool != NULL));

        idx = id16_map_alloc(dhdp->staid_allocator);
        if (idx == ID16_INVALID) {
                DHD_ERROR(("%s: cannot get free staid\n", __FUNCTION__));
                return DHD_STA_NULL;
        }

        sta_pool = (dhd_sta_pool_t *)(dhdp->sta_pool);
        sta = &sta_pool[idx];

        ASSERT((sta->idx == ID16_INVALID) &&
               (sta->ifp == DHD_IF_NULL) && (sta->ifidx == DHD_BAD_IF));

        DHD_CUMM_CTR_INIT(&sta->cumm_ctr);

        sta->idx = idx; /* implying allocated */

        return sta;
}

/** Delete all STAs in an interface's STA list. */
static void
dhd_if_del_sta_list(dhd_if_t *ifp)
{
        dhd_sta_t *sta, *next;
        unsigned long flags;

        DHD_IF_STA_LIST_LOCK(ifp, flags);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
        list_for_each_entry_safe(sta, next, &ifp->sta_list, list) {
                list_del(&sta->list);
                dhd_sta_free(&ifp->info->pub, sta);
        }
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif
        DHD_IF_STA_LIST_UNLOCK(ifp, flags);

        return;
}

/** Router/GMAC3: Flush all station entries in the forwarder's WOFA database. */
static void
dhd_if_flush_sta(dhd_if_t * ifp)
{
}

/** Construct a pool of dhd_sta_t objects to be used by interfaces. */
static int
dhd_sta_pool_init(dhd_pub_t *dhdp, int max_sta)
{
        int idx, prio, sta_pool_memsz;
        dhd_sta_t * sta;
        dhd_sta_pool_t * sta_pool;
        void * staid_allocator;

        ASSERT(dhdp != (dhd_pub_t *)NULL);
        ASSERT((dhdp->staid_allocator == NULL) && (dhdp->sta_pool == NULL));

        /* dhd_sta objects per radio are managed in a table. id#0 reserved. */
        staid_allocator = id16_map_init(dhdp->osh, max_sta, 1);
        if (staid_allocator == NULL) {
                DHD_ERROR(("%s: sta id allocator init failure\n", __FUNCTION__));
                return BCME_ERROR;
        }

        /* Pre allocate a pool of dhd_sta objects (one extra). */
        sta_pool_memsz = ((max_sta + 1) * sizeof(dhd_sta_t)); /* skip idx 0 */
        sta_pool = (dhd_sta_pool_t *)MALLOC(dhdp->osh, sta_pool_memsz);
        if (sta_pool == NULL) {
                DHD_ERROR(("%s: sta table alloc failure\n", __FUNCTION__));
                id16_map_fini(dhdp->osh, staid_allocator);
                return BCME_ERROR;
        }

        dhdp->sta_pool = sta_pool;
        dhdp->staid_allocator = staid_allocator;

        /* Initialize all sta(s) for the pre-allocated free pool. */
        bzero((uchar *)sta_pool, sta_pool_memsz);
        for (idx = max_sta; idx >= 1; idx--) { /* skip sta_pool[0] */
                sta = &sta_pool[idx];
                sta->idx = id16_map_alloc(staid_allocator);
                ASSERT(sta->idx <= max_sta);
        }

        /* Now place them into the pre-allocated free pool. */
        for (idx = 1; idx <= max_sta; idx++) {
                sta = &sta_pool[idx];
                for (prio = 0; prio < (int)NUMPRIO; prio++) {
                        sta->flowid[prio] = FLOWID_INVALID; /* Flow rings do not exist */
                }
                dhd_sta_free(dhdp, sta);
        }

        return BCME_OK;
}

/** Destruct the pool of dhd_sta_t objects.
 * Caller must ensure that no STA objects are currently associated with an if.
 */
static void
dhd_sta_pool_fini(dhd_pub_t *dhdp, int max_sta)
{
        dhd_sta_pool_t * sta_pool = (dhd_sta_pool_t *)dhdp->sta_pool;

        if (sta_pool) {
                int idx;
                int sta_pool_memsz = ((max_sta + 1) * sizeof(dhd_sta_t));
                for (idx = 1; idx <= max_sta; idx++) {
                        ASSERT(sta_pool[idx].ifp == DHD_IF_NULL);
                        ASSERT(sta_pool[idx].idx == ID16_INVALID);
                }
                MFREE(dhdp->osh, dhdp->sta_pool, sta_pool_memsz);
                dhdp->sta_pool = NULL;
        }

        id16_map_fini(dhdp->osh, dhdp->staid_allocator);
        dhdp->staid_allocator = NULL;
}

/* Clear the pool of dhd_sta_t objects for built-in type driver */
static void
dhd_sta_pool_clear(dhd_pub_t *dhdp, int max_sta)
{
        int idx, prio, sta_pool_memsz;
        dhd_sta_t * sta;
        dhd_sta_pool_t * sta_pool;
        void *staid_allocator;

        if (!dhdp) {
                DHD_ERROR(("%s: dhdp is NULL\n", __FUNCTION__));
                return;
        }

        sta_pool = (dhd_sta_pool_t *)dhdp->sta_pool;
        staid_allocator = dhdp->staid_allocator;

        if (!sta_pool) {
                DHD_ERROR(("%s: sta_pool is NULL\n", __FUNCTION__));
                return;
        }

        if (!staid_allocator) {
                DHD_ERROR(("%s: staid_allocator is NULL\n", __FUNCTION__));
                return;
        }

        /* clear free pool */
        sta_pool_memsz = ((max_sta + 1) * sizeof(dhd_sta_t));
        bzero((uchar *)sta_pool, sta_pool_memsz);

        /* dhd_sta objects per radio are managed in a table. id#0 reserved. */
        id16_map_clear(staid_allocator, max_sta, 1);

        /* Initialize all sta(s) for the pre-allocated free pool. */
        for (idx = max_sta; idx >= 1; idx--) { /* skip sta_pool[0] */
                sta = &sta_pool[idx];
                sta->idx = id16_map_alloc(staid_allocator);
                ASSERT(sta->idx <= max_sta);
        }
        /* Now place them into the pre-allocated free pool. */
        for (idx = 1; idx <= max_sta; idx++) {
                sta = &sta_pool[idx];
                for (prio = 0; prio < (int)NUMPRIO; prio++) {
                        sta->flowid[prio] = FLOWID_INVALID; /* Flow rings do not exist */
                }
                dhd_sta_free(dhdp, sta);
        }
}

/** Find STA with MAC address ea in an interface's STA list. */
dhd_sta_t *
dhd_find_sta(void *pub, int ifidx, void *ea)
{
        dhd_sta_t *sta;
        dhd_if_t *ifp;
        unsigned long flags;

        ASSERT(ea != NULL);
        ifp = dhd_get_ifp((dhd_pub_t *)pub, ifidx);
        if (ifp == NULL)
                return DHD_STA_NULL;

        DHD_IF_STA_LIST_LOCK(ifp, flags);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
        list_for_each_entry(sta, &ifp->sta_list, list) {
                if (!memcmp(sta->ea.octet, ea, ETHER_ADDR_LEN)) {
                        DHD_INFO(("%s: Found STA " MACDBG "\n",
                                __FUNCTION__, MAC2STRDBG((char *)ea)));
                        DHD_IF_STA_LIST_UNLOCK(ifp, flags);
                        return sta;
                }
        }
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif
        DHD_IF_STA_LIST_UNLOCK(ifp, flags);

        return DHD_STA_NULL;
}

/** Add STA into the interface's STA list. */
dhd_sta_t *
dhd_add_sta(void *pub, int ifidx, void *ea)
{
        dhd_sta_t *sta;
        dhd_if_t *ifp;
        unsigned long flags;

        ASSERT(ea != NULL);
        ifp = dhd_get_ifp((dhd_pub_t *)pub, ifidx);
        if (ifp == NULL)
                return DHD_STA_NULL;

        if (!memcmp(ifp->net->dev_addr, ea, ETHER_ADDR_LEN)) {
                DHD_ERROR(("%s: Serious FAILURE, receive own MAC %pM !!\n", __FUNCTION__, ea));
                return DHD_STA_NULL;
        }

        sta = dhd_sta_alloc((dhd_pub_t *)pub);
        if (sta == DHD_STA_NULL) {
                DHD_ERROR(("%s: Alloc failed\n", __FUNCTION__));
                return DHD_STA_NULL;
        }

        memcpy(sta->ea.octet, ea, ETHER_ADDR_LEN);

        /* link the sta and the dhd interface */
        sta->ifp = ifp;
        sta->ifidx = ifidx;
        INIT_LIST_HEAD(&sta->list);

        DHD_IF_STA_LIST_LOCK(ifp, flags);

        list_add_tail(&sta->list, &ifp->sta_list);

        DHD_ERROR(("%s: Adding  STA " MACDBG "\n",
                __FUNCTION__, MAC2STRDBG((char *)ea)));

        DHD_IF_STA_LIST_UNLOCK(ifp, flags);

        return sta;
}

/** Delete all STAs from the interface's STA list. */
void
dhd_del_all_sta(void *pub, int ifidx)
{
        dhd_sta_t *sta, *next;
        dhd_if_t *ifp;
        unsigned long flags;

        ifp = dhd_get_ifp((dhd_pub_t *)pub, ifidx);
        if (ifp == NULL)
                return;

        DHD_IF_STA_LIST_LOCK(ifp, flags);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
        list_for_each_entry_safe(sta, next, &ifp->sta_list, list) {

                list_del(&sta->list);
                dhd_sta_free(&ifp->info->pub, sta);
#ifdef DHD_L2_FILTER
                if (ifp->parp_enable) {
                        /* clear Proxy ARP cache of specific Ethernet Address */
                        bcm_l2_filter_arp_table_update(((dhd_pub_t*)pub)->osh,
                                        ifp->phnd_arp_table, FALSE,
                                        sta->ea.octet, FALSE, ((dhd_pub_t*)pub)->tickcnt);
                }
#endif /* DHD_L2_FILTER */
        }
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif
        DHD_IF_STA_LIST_UNLOCK(ifp, flags);

        return;
}

/** Delete STA from the interface's STA list. */
void
dhd_del_sta(void *pub, int ifidx, void *ea)
{
        dhd_sta_t *sta, *next;
        dhd_if_t *ifp;
        unsigned long flags;

        ASSERT(ea != NULL);
        ifp = dhd_get_ifp((dhd_pub_t *)pub, ifidx);
        if (ifp == NULL)
                return;

        DHD_IF_STA_LIST_LOCK(ifp, flags);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
        list_for_each_entry_safe(sta, next, &ifp->sta_list, list) {
                if (!memcmp(sta->ea.octet, ea, ETHER_ADDR_LEN)) {
                        DHD_ERROR(("%s: Deleting STA " MACDBG "\n",
                                __FUNCTION__, MAC2STRDBG(sta->ea.octet)));
                        list_del(&sta->list);
                        dhd_sta_free(&ifp->info->pub, sta);
                }
        }
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif
        DHD_IF_STA_LIST_UNLOCK(ifp, flags);
#ifdef DHD_L2_FILTER
        if (ifp->parp_enable) {
                /* clear Proxy ARP cache of specific Ethernet Address */
                bcm_l2_filter_arp_table_update(((dhd_pub_t*)pub)->osh, ifp->phnd_arp_table, FALSE,
                        ea, FALSE, ((dhd_pub_t*)pub)->tickcnt);
        }
#endif /* DHD_L2_FILTER */
        return;
}

/** Add STA if it doesn't exist. Not reentrant. */
dhd_sta_t*
dhd_findadd_sta(void *pub, int ifidx, void *ea)
{
        dhd_sta_t *sta;

        sta = dhd_find_sta(pub, ifidx, ea);

        if (!sta) {
                /* Add entry */
                sta = dhd_add_sta(pub, ifidx, ea);
        }

        return sta;
}

#if defined(DHD_IGMP_UCQUERY) || defined(DHD_UCAST_UPNP)
static struct list_head *
dhd_sta_list_snapshot(dhd_info_t *dhd, dhd_if_t *ifp, struct list_head *snapshot_list)
{
        unsigned long flags;
        dhd_sta_t *sta, *snapshot;

        INIT_LIST_HEAD(snapshot_list);

        DHD_IF_STA_LIST_LOCK(ifp, flags);

        list_for_each_entry(sta, &ifp->sta_list, list) {
                /* allocate one and add to snapshot */
                snapshot = (dhd_sta_t *)MALLOC(dhd->pub.osh, sizeof(dhd_sta_t));
                if (snapshot == NULL) {
                        DHD_ERROR(("%s: Cannot allocate memory\n", __FUNCTION__));
                        continue;
                }

                memcpy(snapshot->ea.octet, sta->ea.octet, ETHER_ADDR_LEN);

                INIT_LIST_HEAD(&snapshot->list);
                list_add_tail(&snapshot->list, snapshot_list);
        }

        DHD_IF_STA_LIST_UNLOCK(ifp, flags);

        return snapshot_list;
}

static void
dhd_sta_list_snapshot_free(dhd_info_t *dhd, struct list_head *snapshot_list)
{
        dhd_sta_t *sta, *next;

        list_for_each_entry_safe(sta, next, snapshot_list, list) {
                list_del(&sta->list);
                MFREE(dhd->pub.osh, sta, sizeof(dhd_sta_t));
        }
}
#endif /* DHD_IGMP_UCQUERY || DHD_UCAST_UPNP */

#else
static inline void dhd_if_flush_sta(dhd_if_t * ifp) { }
static inline void dhd_if_del_sta_list(dhd_if_t *ifp) {}
static inline int dhd_sta_pool_init(dhd_pub_t *dhdp, int max_sta) { return BCME_OK; }
static inline void dhd_sta_pool_fini(dhd_pub_t *dhdp, int max_sta) {}
static inline void dhd_sta_pool_clear(dhd_pub_t *dhdp, int max_sta) {}
dhd_sta_t *dhd_findadd_sta(void *pub, int ifidx, void *ea) { return NULL; }
dhd_sta_t *dhd_find_sta(void *pub, int ifidx, void *ea) { return NULL; }
void dhd_del_sta(void *pub, int ifidx, void *ea) {}
#endif /* PCIE_FULL_DONGLE */

#if defined(DHD_LB)

#if defined(DHD_LB_TXC) || defined(DHD_LB_RXC) || defined(DHD_LB_TXP) || \
        defined(DHD_LB_RXP)
/**
 * dhd_tasklet_schedule - Function that runs in IPI context of the destination
 * CPU and schedules a tasklet.
 * @tasklet: opaque pointer to the tasklet
 */
INLINE void
dhd_tasklet_schedule(void *tasklet)
{
        tasklet_schedule((struct tasklet_struct *)tasklet);
}
/**
 * dhd_tasklet_schedule_on - Executes the passed takslet in a given CPU
 * @tasklet: tasklet to be scheduled
 * @on_cpu: cpu core id
 *
 * If the requested cpu is online, then an IPI is sent to this cpu via the
 * smp_call_function_single with no wait and the tasklet_schedule function
 * will be invoked to schedule the specified tasklet on the requested CPU.
 */
INLINE void
dhd_tasklet_schedule_on(struct tasklet_struct *tasklet, int on_cpu)
{
        const int wait = 0;
        smp_call_function_single(on_cpu,
                dhd_tasklet_schedule, (void *)tasklet, wait);
}

/**
 * dhd_work_schedule_on - Executes the passed work in a given CPU
 * @work: work to be scheduled
 * @on_cpu: cpu core id
 *
 * If the requested cpu is online, then an IPI is sent to this cpu via the
 * schedule_work_on and the work function
 * will be invoked to schedule the specified work on the requested CPU.
 */

INLINE void
dhd_work_schedule_on(struct work_struct *work, int on_cpu)
{
        schedule_work_on(on_cpu, work);
}
#endif /* DHD_LB_TXC || DHD_LB_RXC || DHD_LB_TXP || DHD_LB_RXP */

#if defined(DHD_LB_TXC)
/**
 * dhd_lb_tx_compl_dispatch - load balance by dispatching the tx_compl_tasklet
 * on another cpu. The tx_compl_tasklet will take care of DMA unmapping and
 * freeing the packets placed in the tx_compl workq
 */
void
dhd_lb_tx_compl_dispatch(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd = dhdp->info;
        int curr_cpu, on_cpu;

        if (dhd->rx_napi_netdev == NULL) {
                DHD_ERROR(("%s: dhd->rx_napi_netdev is NULL\n", __FUNCTION__));
                return;
        }

        DHD_LB_STATS_INCR(dhd->txc_sched_cnt);
        /*
         * If the destination CPU is NOT online or is same as current CPU
         * no need to schedule the work
         */
        curr_cpu = get_cpu();
        put_cpu();

        on_cpu = atomic_read(&dhd->tx_compl_cpu);

        if ((on_cpu == curr_cpu) || (!cpu_online(on_cpu))) {
                dhd_tasklet_schedule(&dhd->tx_compl_tasklet);
        } else {
                schedule_work(&dhd->tx_compl_dispatcher_work);
        }
}

static void dhd_tx_compl_dispatcher_fn(struct work_struct * work)
{
        struct dhd_info *dhd =
                container_of(work, struct dhd_info, tx_compl_dispatcher_work);
        int cpu;

        get_online_cpus();
        cpu = atomic_read(&dhd->tx_compl_cpu);
        if (!cpu_online(cpu))
                dhd_tasklet_schedule(&dhd->tx_compl_tasklet);
        else
                dhd_tasklet_schedule_on(&dhd->tx_compl_tasklet, cpu);
        put_online_cpus();
}
#endif /* DHD_LB_TXC */

#if defined(DHD_LB_RXC)
/**
 * dhd_lb_rx_compl_dispatch - load balance by dispatching the rx_compl_tasklet
 * on another cpu. The rx_compl_tasklet will take care of reposting rx buffers
 * in the H2D RxBuffer Post common ring, by using the recycled pktids that were
 * placed in the rx_compl workq.
 *
 * @dhdp: pointer to dhd_pub object
 */
void
dhd_lb_rx_compl_dispatch(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd = dhdp->info;
        int curr_cpu, on_cpu;

        if (dhd->rx_napi_netdev == NULL) {
                DHD_ERROR(("%s: dhd->rx_napi_netdev is NULL\n", __FUNCTION__));
                return;
        }

        DHD_LB_STATS_INCR(dhd->rxc_sched_cnt);
        /*
         * If the destination CPU is NOT online or is same as current CPU
         * no need to schedule the work
         */
        curr_cpu = get_cpu();
        put_cpu();
        on_cpu = atomic_read(&dhd->rx_compl_cpu);

        if ((on_cpu == curr_cpu) || (!cpu_online(on_cpu))) {
                dhd_tasklet_schedule(&dhd->rx_compl_tasklet);
        } else {
                schedule_work(&dhd->rx_compl_dispatcher_work);
        }
}

static void dhd_rx_compl_dispatcher_fn(struct work_struct * work)
{
        struct dhd_info *dhd =
                container_of(work, struct dhd_info, rx_compl_dispatcher_work);
        int cpu;

        get_online_cpus();
        cpu = atomic_read(&dhd->rx_compl_cpu);
        if (!cpu_online(cpu))
                dhd_tasklet_schedule(&dhd->rx_compl_tasklet);
        else {
                dhd_tasklet_schedule_on(&dhd->rx_compl_tasklet, cpu);
        }
        put_online_cpus();
}
#endif /* DHD_LB_RXC */

#if defined(DHD_LB_TXP)
static void dhd_tx_dispatcher_work(struct work_struct * work)
{
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
        struct dhd_info *dhd =
                container_of(work, struct dhd_info, tx_dispatcher_work);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif
        dhd_tasklet_schedule(&dhd->tx_tasklet);
}

static void dhd_tx_dispatcher_fn(dhd_pub_t *dhdp)
{
        int cpu;
        int net_tx_cpu;
        dhd_info_t *dhd = dhdp->info;

        preempt_disable();
        cpu = atomic_read(&dhd->tx_cpu);
        net_tx_cpu = atomic_read(&dhd->net_tx_cpu);

        /*
         * Now if the NET_TX has pushed the packet in the same
         * CPU that is chosen for Tx processing, seperate it out
         * i.e run the TX processing tasklet in compl_cpu
         */
        if (net_tx_cpu == cpu)
                cpu = atomic_read(&dhd->tx_compl_cpu);

        if (!cpu_online(cpu)) {
                /*
                 * Ooohh... but the Chosen CPU is not online,
                 * Do the job in the current CPU itself.
                 */
                dhd_tasklet_schedule(&dhd->tx_tasklet);
        } else {
                /*
                 * Schedule tx_dispatcher_work to on the cpu which
                 * in turn will schedule tx_tasklet.
                 */
                dhd_work_schedule_on(&dhd->tx_dispatcher_work, cpu);
        }
        preempt_enable();
}

/**
 * dhd_lb_tx_dispatch - load balance by dispatching the tx_tasklet
 * on another cpu. The tx_tasklet will take care of actually putting
 * the skbs into appropriate flow ring and ringing H2D interrupt
 *
 * @dhdp: pointer to dhd_pub object
 */
static void
dhd_lb_tx_dispatch(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd = dhdp->info;
        int curr_cpu;

        curr_cpu = get_cpu();
        put_cpu();

        /* Record the CPU in which the TX request from Network stack came */
        atomic_set(&dhd->net_tx_cpu, curr_cpu);

        /* Schedule the work to dispatch ... */
        dhd_tx_dispatcher_fn(dhdp);
}
#endif /* DHD_LB_TXP */

#if defined(DHD_LB_RXP)
/**
 * dhd_napi_poll - Load balance napi poll function to process received
 * packets and send up the network stack using netif_receive_skb()
 *
 * @napi: napi object in which context this poll function is invoked
 * @budget: number of packets to be processed.
 *
 * Fetch the dhd_info given the rx_napi_struct. Move all packets from the
 * rx_napi_queue into a local rx_process_queue (lock and queue move and unlock).
 * Dequeue each packet from head of rx_process_queue, fetch the ifid from the
 * packet tag and sendup.
 */
static int
dhd_napi_poll(struct napi_struct *napi, int budget)
{
        int ifid;
        const int pkt_count = 1;
        const int chan = 0;
        struct sk_buff * skb;
        unsigned long flags;
        struct dhd_info *dhd;
        int processed = 0;
        struct sk_buff_head rx_process_queue;

#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
        dhd = container_of(napi, struct dhd_info, rx_napi_struct);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif

        DHD_INFO(("%s napi_queue<%d> budget<%d>\n",
                __FUNCTION__, skb_queue_len(&dhd->rx_napi_queue), budget));
                __skb_queue_head_init(&rx_process_queue);

        /* extract the entire rx_napi_queue into local rx_process_queue */
        spin_lock_irqsave(&dhd->rx_napi_queue.lock, flags);
        skb_queue_splice_tail_init(&dhd->rx_napi_queue, &rx_process_queue);
        spin_unlock_irqrestore(&dhd->rx_napi_queue.lock, flags);

        while ((skb = __skb_dequeue(&rx_process_queue)) != NULL) {
                OSL_PREFETCH(skb->data);

                ifid = DHD_PKTTAG_IFID((dhd_pkttag_fr_t *)PKTTAG(skb));

                DHD_INFO(("%s dhd_rx_frame pkt<%p> ifid<%d>\n",
                        __FUNCTION__, skb, ifid));

                dhd_rx_frame(&dhd->pub, ifid, skb, pkt_count, chan);
                processed++;
        }

        DHD_LB_STATS_UPDATE_NAPI_HISTO(&dhd->pub, processed);

        DHD_INFO(("%s processed %d\n", __FUNCTION__, processed));
        napi_complete(napi);

        return budget - 1;
}

/**
 * dhd_napi_schedule - Place the napi struct into the current cpus softnet napi
 * poll list. This function may be invoked via the smp_call_function_single
 * from a remote CPU.
 *
 * This function will essentially invoke __raise_softirq_irqoff(NET_RX_SOFTIRQ)
 * after the napi_struct is added to the softnet data's poll_list
 *
 * @info: pointer to a dhd_info struct
 */
static void
dhd_napi_schedule(void *info)
{
        dhd_info_t *dhd = (dhd_info_t *)info;

        DHD_INFO(("%s rx_napi_struct<%p> on cpu<%d>\n",
                __FUNCTION__, &dhd->rx_napi_struct, atomic_read(&dhd->rx_napi_cpu)));

        /* add napi_struct to softnet data poll list and raise NET_RX_SOFTIRQ */
        if (napi_schedule_prep(&dhd->rx_napi_struct)) {
                __napi_schedule(&dhd->rx_napi_struct);
                DHD_LB_STATS_PERCPU_ARR_INCR(dhd->napi_percpu_run_cnt);
#ifdef WAKEUP_KSOFTIRQD_POST_NAPI_SCHEDULE
                raise_softirq(NET_RX_SOFTIRQ);
#endif /* WAKEUP_KSOFTIRQD_POST_NAPI_SCHEDULE */
        }

        /*
         * If the rx_napi_struct was already running, then we let it complete
         * processing all its packets. The rx_napi_struct may only run on one
         * core at a time, to avoid out-of-order handling.
         */
}

/**
 * dhd_napi_schedule_on - API to schedule on a desired CPU core a NET_RX_SOFTIRQ
 * action after placing the dhd's rx_process napi object in the the remote CPU's
 * softnet data's poll_list.
 *
 * @dhd: dhd_info which has the rx_process napi object
 * @on_cpu: desired remote CPU id
 */
static INLINE int
dhd_napi_schedule_on(dhd_info_t *dhd, int on_cpu)
{
        int wait = 0; /* asynchronous IPI */
        DHD_INFO(("%s dhd<%p> napi<%p> on_cpu<%d>\n",
                __FUNCTION__, dhd, &dhd->rx_napi_struct, on_cpu));

        if (smp_call_function_single(on_cpu, dhd_napi_schedule, dhd, wait)) {
                DHD_ERROR(("%s smp_call_function_single on_cpu<%d> failed\n",
                        __FUNCTION__, on_cpu));
        }

        DHD_LB_STATS_INCR(dhd->napi_sched_cnt);

        return 0;
}

/*
 * Call get_online_cpus/put_online_cpus around dhd_napi_schedule_on
 * Why should we do this?
 * The candidacy algorithm is run from the call back function
 * registered to CPU hotplug notifier. This call back happens from Worker
 * context. The dhd_napi_schedule_on is also from worker context.
 * Note that both of this can run on two different CPUs at the same time.
 * So we can possibly have a window where a given CPUn is being brought
 * down from CPUm while we try to run a function on CPUn.
 * To prevent this its better have the whole code to execute an SMP
 * function under get_online_cpus.
 * This function call ensures that hotplug mechanism does not kick-in
 * until we are done dealing with online CPUs
 * If the hotplug worker is already running, no worries because the
 * candidacy algo would then reflect the same in dhd->rx_napi_cpu.
 *
 * The below mentioned code structure is proposed in
 * https://www.kernel.org/doc/Documentation/cpu-hotplug.txt
 * for the question
 * Q: I need to ensure that a particular cpu is not removed when there is some
 *    work specific to this cpu is in progress
 *
 * According to the documentation calling get_online_cpus is NOT required, if
 * we are running from tasklet context. Since dhd_rx_napi_dispatcher_fn can
 * run from Work Queue context we have to call these functions
 */
static void dhd_rx_napi_dispatcher_fn(struct work_struct * work)
{
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
        struct dhd_info *dhd =
                container_of(work, struct dhd_info, rx_napi_dispatcher_work);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif

        dhd_napi_schedule(dhd);
}

/**
 * dhd_lb_rx_napi_dispatch - load balance by dispatching the rx_napi_struct
 * to run on another CPU. The rx_napi_struct's poll function will retrieve all
 * the packets enqueued into the rx_napi_queue and sendup.
 * The producer's rx packet queue is appended to the rx_napi_queue before
 * dispatching the rx_napi_struct.
 */
void
dhd_lb_rx_napi_dispatch(dhd_pub_t *dhdp)
{
        unsigned long flags;
        dhd_info_t *dhd = dhdp->info;
        int curr_cpu;
        int on_cpu;
#ifdef DHD_LB_IRQSET
        cpumask_t cpus;
#endif /* DHD_LB_IRQSET */

        if (dhd->rx_napi_netdev == NULL) {
                DHD_ERROR(("%s: dhd->rx_napi_netdev is NULL\n", __FUNCTION__));
                return;
        }

        DHD_INFO(("%s append napi_queue<%d> pend_queue<%d>\n", __FUNCTION__,
                skb_queue_len(&dhd->rx_napi_queue), skb_queue_len(&dhd->rx_pend_queue)));

        /* append the producer's queue of packets to the napi's rx process queue */
        spin_lock_irqsave(&dhd->rx_napi_queue.lock, flags);
        skb_queue_splice_tail_init(&dhd->rx_pend_queue, &dhd->rx_napi_queue);
        spin_unlock_irqrestore(&dhd->rx_napi_queue.lock, flags);

        /*
         * If the destination CPU is NOT online or is same as current CPU
         * no need to schedule the work
         */
        curr_cpu = get_cpu();
        put_cpu();

        preempt_disable();
        on_cpu = atomic_read(&dhd->rx_napi_cpu);
#ifdef DHD_LB_IRQSET
        if (cpumask_and(&cpus, cpumask_of(curr_cpu), dhd->cpumask_primary) ||
                        (!cpu_online(on_cpu))) {
#else
        if ((on_cpu == curr_cpu) || (!cpu_online(on_cpu))) {
#endif /* DHD_LB_IRQSET */
                DHD_INFO(("%s : curr_cpu : %d, cpumask : 0x%lx\n", __FUNCTION__,
                        curr_cpu, *cpumask_bits(dhd->cpumask_primary)));
                dhd_napi_schedule(dhd);
        } else {
                DHD_INFO(("%s : schedule to curr_cpu : %d, cpumask : 0x%lx\n",
                        __FUNCTION__, curr_cpu, *cpumask_bits(dhd->cpumask_primary)));
                dhd_work_schedule_on(&dhd->rx_napi_dispatcher_work, on_cpu);
        }
        preempt_enable();
}

/**
 * dhd_lb_rx_pkt_enqueue - Enqueue the packet into the producer's queue
 */
void
dhd_lb_rx_pkt_enqueue(dhd_pub_t *dhdp, void *pkt, int ifidx)
{
        dhd_info_t *dhd = dhdp->info;

        DHD_INFO(("%s enqueue pkt<%p> ifidx<%d> pend_queue<%d>\n", __FUNCTION__,
                pkt, ifidx, skb_queue_len(&dhd->rx_pend_queue)));
        DHD_PKTTAG_SET_IFID((dhd_pkttag_fr_t *)PKTTAG(pkt), ifidx);
        __skb_queue_tail(&dhd->rx_pend_queue, pkt);
}
#endif /* DHD_LB_RXP */

#ifdef DHD_LB_IRQSET
void
dhd_irq_set_affinity(dhd_pub_t *dhdp)
{
        unsigned int irq = (unsigned int)-1;
        int err = BCME_OK;

        if (!dhdp) {
                DHD_ERROR(("%s : dhdp is NULL\n", __FUNCTION__));
                return;
        }

        if (!dhdp->bus) {
                DHD_ERROR(("%s : bus is NULL\n", __FUNCTION__));
                return;
        }

        dhdpcie_get_pcieirq(dhdp->bus, &irq);
        err = irq_set_affinity(irq, dhdp->info->cpumask_primary);
        if (err)
                DHD_ERROR(("%s : irq set affinity is failed cpu:0x%lx\n",
                        __FUNCTION__, *cpumask_bits(dhdp->info->cpumask_primary)));
}
#endif /* DHD_LB_IRQSET */
#endif /* DHD_LB */

/** Returns dhd iflist index corresponding the the bssidx provided by apps */
int dhd_bssidx2idx(dhd_pub_t *dhdp, uint32 bssidx)
{
        dhd_if_t *ifp;
        dhd_info_t *dhd = dhdp->info;
        int i;

        ASSERT(bssidx < DHD_MAX_IFS);
        ASSERT(dhdp);

        for (i = 0; i < DHD_MAX_IFS; i++) {
                ifp = dhd->iflist[i];
                if (ifp && (ifp->bssidx == bssidx)) {
                        DHD_TRACE(("Index manipulated for %s from %d to %d\n",
                                ifp->name, bssidx, i));
                        break;
                }
        }
        return i;
}

static inline int dhd_rxf_enqueue(dhd_pub_t *dhdp, void* skb)
{
        uint32 store_idx;
        uint32 sent_idx;

        if (!skb) {
                DHD_ERROR(("dhd_rxf_enqueue: NULL skb!!!\n"));
                return BCME_ERROR;
        }

        dhd_os_rxflock(dhdp);
        store_idx = dhdp->store_idx;
        sent_idx = dhdp->sent_idx;
        if (dhdp->skbbuf[store_idx] != NULL) {
                /* Make sure the previous packets are processed */
                dhd_os_rxfunlock(dhdp);
                DHD_ERROR(("dhd_rxf_enqueue: pktbuf not consumed %p, store idx %d sent idx %d\n",
                        skb, store_idx, sent_idx));
                /* removed msleep here, should use wait_event_timeout if we
                 * want to give rx frame thread a chance to run
                 */
#if defined(WAIT_DEQUEUE)
                OSL_SLEEP(1);
#endif // endif
                return BCME_ERROR;
        }
        DHD_TRACE(("dhd_rxf_enqueue: Store SKB %p. idx %d -> %d\n",
                skb, store_idx, (store_idx + 1) & (MAXSKBPEND - 1)));
        dhdp->skbbuf[store_idx] = skb;
        dhdp->store_idx = (store_idx + 1) & (MAXSKBPEND - 1);
        dhd_os_rxfunlock(dhdp);

        return BCME_OK;
}

static inline void* dhd_rxf_dequeue(dhd_pub_t *dhdp)
{
        uint32 store_idx;
        uint32 sent_idx;
        void *skb;

        dhd_os_rxflock(dhdp);

        store_idx = dhdp->store_idx;
        sent_idx = dhdp->sent_idx;
        skb = dhdp->skbbuf[sent_idx];

        if (skb == NULL) {
                dhd_os_rxfunlock(dhdp);
                DHD_ERROR(("dhd_rxf_dequeue: Dequeued packet is NULL, store idx %d sent idx %d\n",
                        store_idx, sent_idx));
                return NULL;
        }

        dhdp->skbbuf[sent_idx] = NULL;
        dhdp->sent_idx = (sent_idx + 1) & (MAXSKBPEND - 1);

        DHD_TRACE(("dhd_rxf_dequeue: netif_rx_ni(%p), sent idx %d\n",
                skb, sent_idx));

        dhd_os_rxfunlock(dhdp);

        return skb;
}

int dhd_process_cid_mac(dhd_pub_t *dhdp, bool prepost)
{
        if (prepost) { /* pre process */
                dhd_read_cis(dhdp);
                dhd_check_module_cid(dhdp);
                dhd_check_module_mac(dhdp);
                dhd_set_macaddr_from_file(dhdp);
        } else { /* post process */
                dhd_write_macaddr(&dhdp->mac);
                dhd_clear_cis(dhdp);
        }

        return 0;
}

#ifdef PKT_FILTER_SUPPORT
#ifndef GAN_LITE_NAT_KEEPALIVE_FILTER
static bool
_turn_on_arp_filter(dhd_pub_t *dhd, int op_mode_param)
{
        bool _apply = FALSE;
        /* In case of IBSS mode, apply arp pkt filter */
        if (op_mode_param & DHD_FLAG_IBSS_MODE) {
                _apply = TRUE;
                goto exit;
        }
        /* In case of P2P GO or GC, apply pkt filter to pass arp pkt to host */
        if (op_mode_param & (DHD_FLAG_P2P_GC_MODE | DHD_FLAG_P2P_GO_MODE)) {
                _apply = TRUE;
                goto exit;
        }

exit:
        return _apply;
}
#endif /* !GAN_LITE_NAT_KEEPALIVE_FILTER */

void
dhd_set_packet_filter(dhd_pub_t *dhd)
{
        int i;

        DHD_TRACE(("%s: enter\n", __FUNCTION__));
        if (dhd_pkt_filter_enable) {
                for (i = 0; i < dhd->pktfilter_count; i++) {
                        dhd_pktfilter_offload_set(dhd, dhd->pktfilter[i]);
                }
        }
}

void
dhd_enable_packet_filter(int value, dhd_pub_t *dhd)
{
        int i;

        DHD_ERROR(("%s: enter, value = %d\n", __FUNCTION__, value));
        if ((dhd->op_mode & DHD_FLAG_HOSTAP_MODE) && value) {
                DHD_ERROR(("%s: DHD_FLAG_HOSTAP_MODE\n", __FUNCTION__));
                return;
        }
        /* 1 - Enable packet filter, only allow unicast packet to send up */
        /* 0 - Disable packet filter */
        if (dhd_pkt_filter_enable && (!value ||
            (dhd_support_sta_mode(dhd) && !dhd->dhcp_in_progress)))
            {
                for (i = 0; i < dhd->pktfilter_count; i++) {
#ifndef GAN_LITE_NAT_KEEPALIVE_FILTER
                        if (value && (i == DHD_ARP_FILTER_NUM) &&
                                !_turn_on_arp_filter(dhd, dhd->op_mode)) {
                                DHD_TRACE(("Do not turn on ARP white list pkt filter:"
                                        "val %d, cnt %d, op_mode 0x%x\n",
                                        value, i, dhd->op_mode));
                                continue;
                        }
#endif /* !GAN_LITE_NAT_KEEPALIVE_FILTER */
                        dhd_pktfilter_offload_enable(dhd, dhd->pktfilter[i],
                                value, dhd_master_mode);
                }
        }
}

int
dhd_packet_filter_add_remove(dhd_pub_t *dhdp, int add_remove, int num)
{
        char *filterp = NULL;
        int filter_id = 0;

        switch (num) {
                case DHD_BROADCAST_FILTER_NUM:
                        filterp = "101 0 0 0 0xFFFFFFFFFFFF 0xFFFFFFFFFFFF";
                        filter_id = 101;
                        break;
                case DHD_MULTICAST4_FILTER_NUM:
                        filter_id = 102;
                        if (FW_SUPPORTED((dhdp), pf6)) {
                                if (dhdp->pktfilter[num] != NULL) {
                                        dhd_pktfilter_offload_delete(dhdp, filter_id);
                                        dhdp->pktfilter[num] = NULL;
                                }
                                if (!add_remove) {
                                        filterp = DISCARD_IPV4_MCAST;
                                        add_remove = 1;
                                        break;
                                }
                        }
                        filterp = "102 0 0 0 0xFFFFFF 0x01005E";
                        break;
                case DHD_MULTICAST6_FILTER_NUM:
                        filter_id = 103;
                        if (FW_SUPPORTED((dhdp), pf6)) {
                                if (dhdp->pktfilter[num] != NULL) {
                                        dhd_pktfilter_offload_delete(dhdp, filter_id);
                                        dhdp->pktfilter[num] = NULL;
                                }
                                if (!add_remove) {
                                        filterp = DISCARD_IPV6_MCAST;
                                        add_remove = 1;
                                        break;
                                }
                        }
                        filterp = "103 0 0 0 0xFFFF 0x3333";
                        break;
                case DHD_MDNS_FILTER_NUM:
                        filterp = "104 0 0 0 0xFFFFFFFFFFFF 0x01005E0000FB";
                        filter_id = 104;
                        break;
                case DHD_ARP_FILTER_NUM:
                        filterp = "105 0 0 12 0xFFFF 0x0806";
                        filter_id = 105;
                        break;
                case DHD_BROADCAST_ARP_FILTER_NUM:
                        filterp = "106 0 0 0 0xFFFFFFFFFFFF0000000000000806"
                                " 0xFFFFFFFFFFFF0000000000000806";
                        filter_id = 106;
                        break;
                default:
                        return -EINVAL;
        }

        /* Add filter */
        if (add_remove) {
                dhdp->pktfilter[num] = filterp;
                dhd_pktfilter_offload_set(dhdp, dhdp->pktfilter[num]);
        } else { /* Delete filter */
                if (dhdp->pktfilter[num]) {
                        dhd_pktfilter_offload_delete(dhdp, filter_id);
                        dhdp->pktfilter[num] = NULL;
                }
        }

        return 0;
}
#endif /* PKT_FILTER_SUPPORT */

static int dhd_set_suspend(int value, dhd_pub_t *dhd)
{
#ifndef SUPPORT_PM2_ONLY
        int power_mode = PM_MAX;
#endif /* SUPPORT_PM2_ONLY */
        /* wl_pkt_filter_enable_t       enable_parm; */
        int bcn_li_dtim = 0; /* Default bcn_li_dtim in resume mode is 0 */
        int ret = 0;
#ifdef DHD_USE_EARLYSUSPEND
#ifdef CUSTOM_BCN_TIMEOUT_IN_SUSPEND
        int bcn_timeout = 0;
#endif /* CUSTOM_BCN_TIMEOUT_IN_SUSPEND */
#ifdef CUSTOM_ROAM_TIME_THRESH_IN_SUSPEND
        int roam_time_thresh = 0;   /* (ms) */
#endif /* CUSTOM_ROAM_TIME_THRESH_IN_SUSPEND */
#ifndef ENABLE_FW_ROAM_SUSPEND
        uint roamvar = 1;
#endif /* ENABLE_FW_ROAM_SUSPEND */
#ifdef ENABLE_BCN_LI_BCN_WAKEUP
        int bcn_li_bcn = 1;
#endif /* ENABLE_BCN_LI_BCN_WAKEUP */
        uint nd_ra_filter = 0;
#ifdef ENABLE_IPMCAST_FILTER
        int ipmcast_l2filter;
#endif /* ENABLE_IPMCAST_FILTER */
#ifdef CUSTOM_EVENT_PM_WAKE
        uint32 pm_awake_thresh = CUSTOM_EVENT_PM_WAKE;
#endif /* CUSTOM_EVENT_PM_WAKE */
#endif /* DHD_USE_EARLYSUSPEND */
#ifdef PASS_ALL_MCAST_PKTS
        struct dhd_info *dhdinfo;
        uint32 allmulti;
        uint i;
#endif /* PASS_ALL_MCAST_PKTS */
#ifdef DYNAMIC_SWOOB_DURATION
#ifndef CUSTOM_INTR_WIDTH
#define CUSTOM_INTR_WIDTH 100
        int intr_width = 0;
#endif /* CUSTOM_INTR_WIDTH */
#endif /* DYNAMIC_SWOOB_DURATION */

#if defined(BCMPCIE)
        int lpas = 0;
        int dtim_period = 0;
        int bcn_interval = 0;
        int bcn_to_dly = 0;
#if defined(CUSTOM_BCN_TIMEOUT_IN_SUSPEND) && defined(DHD_USE_EARLYSUSPEND)
        bcn_timeout = CUSTOM_BCN_TIMEOUT_SETTING;
#else
        int bcn_timeout = CUSTOM_BCN_TIMEOUT_SETTING;
#endif /* CUSTOM_BCN_TIMEOUT_IN_SUSPEND && DHD_USE_EARLYSUSPEND */
#endif /* OEM_ANDROID && BCMPCIE */

        if (!dhd)
                return -ENODEV;

#ifdef PASS_ALL_MCAST_PKTS
        dhdinfo = dhd->info;
#endif /* PASS_ALL_MCAST_PKTS */

        DHD_TRACE(("%s: enter, value = %d in_suspend=%d\n",
                __FUNCTION__, value, dhd->in_suspend));

        dhd_suspend_lock(dhd);

#ifdef CUSTOM_SET_CPUCORE
        DHD_TRACE(("%s set cpucore(suspend%d)\n", __FUNCTION__, value));
        /* set specific cpucore */
        dhd_set_cpucore(dhd, TRUE);
#endif /* CUSTOM_SET_CPUCORE */
        if (dhd->up) {
                if (value && dhd->in_suspend) {
#ifdef PKT_FILTER_SUPPORT
                                dhd->early_suspended = 1;
#endif // endif
                                /* Kernel suspended */
                                DHD_ERROR(("%s: force extra Suspend setting \n", __FUNCTION__));

#ifndef SUPPORT_PM2_ONLY
                                dhd_wl_ioctl_cmd(dhd, WLC_SET_PM, (char *)&power_mode,
                                                 sizeof(power_mode), TRUE, 0);
#endif /* SUPPORT_PM2_ONLY */

#ifdef PKT_FILTER_SUPPORT
                                /* Enable packet filter,
                                 * only allow unicast packet to send up
                                 */
                                dhd_enable_packet_filter(1, dhd);
#ifdef APF
                                dhd_dev_apf_enable_filter(dhd_linux_get_primary_netdev(dhd));
#endif /* APF */
#endif /* PKT_FILTER_SUPPORT */

#ifdef PASS_ALL_MCAST_PKTS
                                allmulti = 0;
                                for (i = 0; i < DHD_MAX_IFS; i++) {
                                        if (dhdinfo->iflist[i] && dhdinfo->iflist[i]->net)
                                                ret = dhd_iovar(dhd, i, "allmulti",
                                                                (char *)&allmulti,
                                                                sizeof(allmulti),
                                                                NULL, 0, TRUE);
                                                if (ret < 0) {
                                                        DHD_ERROR(("%s allmulti failed %d\n",
                                                                __FUNCTION__, ret));
                                                }
                                }
#endif /* PASS_ALL_MCAST_PKTS */

                                /* If DTIM skip is set up as default, force it to wake
                                 * each third DTIM for better power savings.  Note that
                                 * one side effect is a chance to miss BC/MC packet.
                                 */
#ifdef WLTDLS
                                /* Do not set bcn_li_ditm on WFD mode */
                                if (dhd->tdls_mode) {
                                        bcn_li_dtim = 0;
                                } else
#endif /* WLTDLS */
#if defined(BCMPCIE)
                                bcn_li_dtim = dhd_get_suspend_bcn_li_dtim(dhd, &dtim_period,
                                                &bcn_interval);
                                ret = dhd_iovar(dhd, 0, "bcn_li_dtim", (char *)&bcn_li_dtim,
                                                sizeof(bcn_li_dtim), NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("%s bcn_li_dtim failed %d\n",
                                                        __FUNCTION__, ret));
                                }
                                if ((bcn_li_dtim * dtim_period * bcn_interval) >=
                                        MIN_DTIM_FOR_ROAM_THRES_EXTEND) {
                                        /*
                                         * Increase max roaming threshold from 2 secs to 8 secs
                                         * the real roam threshold is MIN(max_roam_threshold,
                                         * bcn_timeout/2)
                                         */
                                        lpas = 1;
                                        ret = dhd_iovar(dhd, 0, "lpas", (char *)&lpas, sizeof(lpas),
                                                        NULL, 0, TRUE);
                                        if (ret < 0) {
                                                DHD_ERROR(("%s lpas failed %d\n", __FUNCTION__,
                                                                ret));
                                        }
                                        bcn_to_dly = 1;
                                        /*
                                         * if bcn_to_dly is 1, the real roam threshold is
                                         * MIN(max_roam_threshold, bcn_timeout -1);
                                         * notify link down event after roaming procedure complete
                                         * if we hit bcn_timeout while we are in roaming progress.
                                         */
                                        ret = dhd_iovar(dhd, 0, "bcn_to_dly", (char *)&bcn_to_dly,
                                                        sizeof(bcn_to_dly), NULL, 0, TRUE);
                                        if (ret < 0) {
                                                DHD_ERROR(("%s bcn_to_dly failed %d\n",
                                                                __FUNCTION__, ret));
                                        }
                                        /* Increase beacon timeout to 6 secs or use bigger one */
                                        bcn_timeout = max(bcn_timeout, BCN_TIMEOUT_IN_SUSPEND);
                                        ret = dhd_iovar(dhd, 0, "bcn_timeout", (char *)&bcn_timeout,
                                                        sizeof(bcn_timeout), NULL, 0, TRUE);
                                        if (ret < 0) {
                                                DHD_ERROR(("%s bcn_timeout failed %d\n",
                                                                __FUNCTION__, ret));
                                        }
                                }
#else
                                bcn_li_dtim = dhd_get_suspend_bcn_li_dtim(dhd);
                                if (dhd_iovar(dhd, 0, "bcn_li_dtim", (char *)&bcn_li_dtim,
                                                sizeof(bcn_li_dtim), NULL, 0, TRUE) < 0)
                                        DHD_ERROR(("%s: set dtim failed\n", __FUNCTION__));
#endif /* OEM_ANDROID && BCMPCIE */

#ifdef DHD_USE_EARLYSUSPEND
#ifdef CUSTOM_BCN_TIMEOUT_IN_SUSPEND
                                bcn_timeout = CUSTOM_BCN_TIMEOUT_IN_SUSPEND;
                                ret = dhd_iovar(dhd, 0, "bcn_timeout", (char *)&bcn_timeout,
                                                sizeof(bcn_timeout), NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("%s bcn_timeout failed %d\n", __FUNCTION__,
                                                ret));
                                }
#endif /* CUSTOM_BCN_TIMEOUT_IN_SUSPEND */
#ifdef CUSTOM_ROAM_TIME_THRESH_IN_SUSPEND
                                roam_time_thresh = CUSTOM_ROAM_TIME_THRESH_IN_SUSPEND;
                                ret = dhd_iovar(dhd, 0, "roam_time_thresh",
                                                (char *)&roam_time_thresh,
                                                sizeof(roam_time_thresh), NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("%s roam_time_thresh failed %d\n",
                                                __FUNCTION__, ret));
                                }
#endif /* CUSTOM_ROAM_TIME_THRESH_IN_SUSPEND */
#ifndef ENABLE_FW_ROAM_SUSPEND
                                /* Disable firmware roaming during suspend */
                                ret = dhd_iovar(dhd, 0, "roam_off", (char *)&roamvar,
                                                sizeof(roamvar), NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("%s roam_off failed %d\n",
                                                __FUNCTION__, ret));
                                }
#endif /* ENABLE_FW_ROAM_SUSPEND */
#ifdef ENABLE_BCN_LI_BCN_WAKEUP
                                if (bcn_li_dtim) {
                                        bcn_li_bcn = 0;
                                }
                                ret = dhd_iovar(dhd, 0, "bcn_li_bcn", (char *)&bcn_li_bcn,
                                                sizeof(bcn_li_bcn), NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("%s bcn_li_bcn failed %d\n", __FUNCTION__, ret));
                                }
#endif /* ENABLE_BCN_LI_BCN_WAKEUP */
#if defined(WL_CFG80211) && defined(WL_BCNRECV)
                                ret = wl_android_bcnrecv_suspend(dhd_linux_get_primary_netdev(dhd));
                                if (ret != BCME_OK) {
                                        DHD_ERROR(("failed to stop beacon recv event on"
                                                " suspend state (%d)\n", ret));
                                }
#endif /* WL_CFG80211 && WL_BCNRECV */
#ifdef NDO_CONFIG_SUPPORT
                                if (dhd->ndo_enable) {
                                        if (!dhd->ndo_host_ip_overflow) {
                                                /* enable ND offload on suspend */
                                                ret = dhd_ndo_enable(dhd, TRUE);
                                                if (ret < 0) {
                                                        DHD_ERROR(("%s: failed to enable NDO\n",
                                                                __FUNCTION__));
                                                }
                                        } else {
                                                DHD_INFO(("%s: NDO disabled on suspend due to"
                                                                "HW capacity\n", __FUNCTION__));
                                        }
                                }
#endif /* NDO_CONFIG_SUPPORT */
#ifndef APF
                                if (FW_SUPPORTED(dhd, ndoe)) {
#else
                                if (FW_SUPPORTED(dhd, ndoe) && !FW_SUPPORTED(dhd, apf)) {
#endif /* APF */
                                        /* enable IPv6 RA filter in  firmware during suspend */
                                        nd_ra_filter = 1;
                                        ret = dhd_iovar(dhd, 0, "nd_ra_filter_enable",
                                                        (char *)&nd_ra_filter, sizeof(nd_ra_filter),
                                                        NULL, 0, TRUE);
                                        if (ret < 0)
                                                DHD_ERROR(("failed to set nd_ra_filter (%d)\n",
                                                        ret));
                                }
                                dhd_os_suppress_logging(dhd, TRUE);
#ifdef ENABLE_IPMCAST_FILTER
                                ipmcast_l2filter = 1;
                                ret = dhd_iovar(dhd, 0, "ipmcast_l2filter",
                                                (char *)&ipmcast_l2filter, sizeof(ipmcast_l2filter),
                                                NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("failed to set ipmcast_l2filter (%d)\n", ret));
                                }
#endif /* ENABLE_IPMCAST_FILTER */
#ifdef DYNAMIC_SWOOB_DURATION
                                intr_width = CUSTOM_INTR_WIDTH;
                                ret = dhd_iovar(dhd, 0, "bus:intr_width", (char *)&intr_width,
                                                sizeof(intr_width), NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("failed to set intr_width (%d)\n", ret));
                                }
#endif /* DYNAMIC_SWOOB_DURATION */
#ifdef CUSTOM_EVENT_PM_WAKE
                                pm_awake_thresh = CUSTOM_EVENT_PM_WAKE * 4;
                                ret = dhd_iovar(dhd, 0, "const_awake_thresh",
                                        (char *)&pm_awake_thresh,
                                        sizeof(pm_awake_thresh), NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("%s set const_awake_thresh failed %d\n",
                                                __FUNCTION__, ret));
                                }
#endif /* CUSTOM_EVENT_PM_WAKE */
#endif /* DHD_USE_EARLYSUSPEND */
                        } else {
#ifdef PKT_FILTER_SUPPORT
                                dhd->early_suspended = 0;
#endif // endif
                                /* Kernel resumed  */
                                DHD_ERROR(("%s: Remove extra suspend setting \n", __FUNCTION__));
#ifdef DYNAMIC_SWOOB_DURATION
                                intr_width = 0;
                                ret = dhd_iovar(dhd, 0, "bus:intr_width", (char *)&intr_width,
                                                sizeof(intr_width), NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("failed to set intr_width (%d)\n", ret));
                                }
#endif /* DYNAMIC_SWOOB_DURATION */
#ifndef SUPPORT_PM2_ONLY
                                power_mode = PM_FAST;
                                dhd_wl_ioctl_cmd(dhd, WLC_SET_PM, (char *)&power_mode,
                                                 sizeof(power_mode), TRUE, 0);
#endif /* SUPPORT_PM2_ONLY */
#if defined(WL_CFG80211) && defined(WL_BCNRECV)
                                ret = wl_android_bcnrecv_resume(dhd_linux_get_primary_netdev(dhd));
                                if (ret != BCME_OK) {
                                        DHD_ERROR(("failed to resume beacon recv state (%d)\n",
                                                        ret));
                                }
#endif /* WL_CF80211 && WL_BCNRECV */
#ifdef PKT_FILTER_SUPPORT
                                /* disable pkt filter */
                                dhd_enable_packet_filter(0, dhd);
#ifdef APF
                                dhd_dev_apf_disable_filter(dhd_linux_get_primary_netdev(dhd));
#endif /* APF */
#endif /* PKT_FILTER_SUPPORT */
#ifdef PASS_ALL_MCAST_PKTS
                                allmulti = 1;
                                for (i = 0; i < DHD_MAX_IFS; i++) {
                                        if (dhdinfo->iflist[i] && dhdinfo->iflist[i]->net)
                                                ret = dhd_iovar(dhd, i, "allmulti",
                                                                (char *)&allmulti,
                                                                sizeof(allmulti), NULL,
                                                                0, TRUE);
                                        if (ret < 0) {
                                                DHD_ERROR(("%s: allmulti failed:%d\n",
                                                                __FUNCTION__, ret));
                                        }
                                }
#endif /* PASS_ALL_MCAST_PKTS */
#if defined(BCMPCIE)
                                /* restore pre-suspend setting */
                                ret = dhd_iovar(dhd, 0, "bcn_li_dtim", (char *)&bcn_li_dtim,
                                                sizeof(bcn_li_dtim), NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("%s:bcn_li_ditm failed:%d\n",
                                                        __FUNCTION__, ret));
                                }
                                ret = dhd_iovar(dhd, 0, "lpas", (char *)&lpas, sizeof(lpas), NULL,
                                                0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("%s:lpas failed:%d\n", __FUNCTION__, ret));
                                }
                                ret = dhd_iovar(dhd, 0, "bcn_to_dly", (char *)&bcn_to_dly,
                                                sizeof(bcn_to_dly), NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("%s:bcn_to_dly failed:%d\n", __FUNCTION__, ret));
                                }
                                ret = dhd_iovar(dhd, 0, "bcn_timeout", (char *)&bcn_timeout,
                                                sizeof(bcn_timeout), NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("%s:bcn_timeout failed:%d\n",
                                                        __FUNCTION__, ret));
                                }
#else
                                /* restore pre-suspend setting for dtim_skip */
                                ret = dhd_iovar(dhd, 0, "bcn_li_dtim", (char *)&bcn_li_dtim,
                                                sizeof(bcn_li_dtim), NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("%s:bcn_li_ditm fail:%d\n", __FUNCTION__, ret));
                                }
#endif /* OEM_ANDROID && BCMPCIE */
#ifdef DHD_USE_EARLYSUSPEND
#ifdef CUSTOM_BCN_TIMEOUT_IN_SUSPEND
                                bcn_timeout = CUSTOM_BCN_TIMEOUT;
                                ret = dhd_iovar(dhd, 0, "bcn_timeout", (char *)&bcn_timeout,
                                                sizeof(bcn_timeout), NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("%s:bcn_timeout failed:%d\n",
                                                __FUNCTION__, ret));
                                }
#endif /* CUSTOM_BCN_TIMEOUT_IN_SUSPEND */
#ifdef CUSTOM_ROAM_TIME_THRESH_IN_SUSPEND
                                roam_time_thresh = 2000;
                                ret = dhd_iovar(dhd, 0, "roam_time_thresh",
                                                (char *)&roam_time_thresh,
                                                sizeof(roam_time_thresh), NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("%s:roam_time_thresh failed:%d\n",
                                                        __FUNCTION__, ret));
                                }

#endif /* CUSTOM_ROAM_TIME_THRESH_IN_SUSPEND */
#ifndef ENABLE_FW_ROAM_SUSPEND
                                roamvar = dhd_roam_disable;
                                ret = dhd_iovar(dhd, 0, "roam_off", (char *)&roamvar,
                                                sizeof(roamvar), NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("%s: roam_off fail:%d\n", __FUNCTION__, ret));
                                }
#endif /* ENABLE_FW_ROAM_SUSPEND */
#ifdef ENABLE_BCN_LI_BCN_WAKEUP
                                ret = dhd_iovar(dhd, 0, "bcn_li_bcn", (char *)&bcn_li_bcn,
                                                sizeof(bcn_li_bcn), NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("%s: bcn_li_bcn failed:%d\n",
                                                __FUNCTION__, ret));
                                }
#endif /* ENABLE_BCN_LI_BCN_WAKEUP */
#ifdef NDO_CONFIG_SUPPORT
                                if (dhd->ndo_enable) {
                                        /* Disable ND offload on resume */
                                        ret = dhd_ndo_enable(dhd, FALSE);
                                        if (ret < 0) {
                                                DHD_ERROR(("%s: failed to disable NDO\n",
                                                        __FUNCTION__));
                                        }
                                }
#endif /* NDO_CONFIG_SUPPORT */
#ifndef APF
                                if (FW_SUPPORTED(dhd, ndoe)) {
#else
                                if (FW_SUPPORTED(dhd, ndoe) && !FW_SUPPORTED(dhd, apf)) {
#endif /* APF */
                                        /* disable IPv6 RA filter in  firmware during suspend */
                                        nd_ra_filter = 0;
                                        ret = dhd_iovar(dhd, 0, "nd_ra_filter_enable",
                                                        (char *)&nd_ra_filter, sizeof(nd_ra_filter),
                                                        NULL, 0, TRUE);
                                        if (ret < 0) {
                                                DHD_ERROR(("failed to set nd_ra_filter (%d)\n",
                                                        ret));
                                        }
                                }
                                dhd_os_suppress_logging(dhd, FALSE);
#ifdef ENABLE_IPMCAST_FILTER
                                ipmcast_l2filter = 0;
                                ret = dhd_iovar(dhd, 0, "ipmcast_l2filter",
                                                (char *)&ipmcast_l2filter, sizeof(ipmcast_l2filter),
                                                NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("failed to clear ipmcast_l2filter ret:%d", ret));
                                }
#endif /* ENABLE_IPMCAST_FILTER */
#ifdef CUSTOM_EVENT_PM_WAKE
                                ret = dhd_iovar(dhd, 0, "const_awake_thresh",
                                        (char *)&pm_awake_thresh,
                                        sizeof(pm_awake_thresh), NULL, 0, TRUE);
                                if (ret < 0) {
                                        DHD_ERROR(("%s set const_awake_thresh failed %d\n",
                                                __FUNCTION__, ret));
                                }
#endif /* CUSTOM_EVENT_PM_WAKE */
#endif /* DHD_USE_EARLYSUSPEND */
#ifdef DHD_LB_IRQSET
                                dhd_irq_set_affinity(dhd);
#endif /* DHD_LB_IRQSET */
                        }
        }
        dhd_suspend_unlock(dhd);

        return 0;
}

static int dhd_suspend_resume_helper(struct dhd_info *dhd, int val, int force)
{
        dhd_pub_t *dhdp = &dhd->pub;
        int ret = 0;

        DHD_OS_WAKE_LOCK(dhdp);
        DHD_PERIM_LOCK(dhdp);

        /* Set flag when early suspend was called */
        dhdp->in_suspend = val;
        if ((force || !dhdp->suspend_disable_flag) &&
                dhd_support_sta_mode(dhdp))
        {
                ret = dhd_set_suspend(val, dhdp);
        }

        DHD_PERIM_UNLOCK(dhdp);
        DHD_OS_WAKE_UNLOCK(dhdp);
        return ret;
}

#if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND)
static void dhd_early_suspend(struct early_suspend *h)
{
        struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
        DHD_TRACE_HW4(("%s: enter\n", __FUNCTION__));

        if (dhd)
                dhd_suspend_resume_helper(dhd, 1, 0);
}

static void dhd_late_resume(struct early_suspend *h)
{
        struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
        DHD_TRACE_HW4(("%s: enter\n", __FUNCTION__));

        if (dhd)
                dhd_suspend_resume_helper(dhd, 0, 0);
}
#endif /* CONFIG_HAS_EARLYSUSPEND && DHD_USE_EARLYSUSPEND */

/*
 * Generalized timeout mechanism.  Uses spin sleep with exponential back-off until
 * the sleep time reaches one jiffy, then switches over to task delay.  Usage:
 *
 *      dhd_timeout_start(&tmo, usec);
 *      while (!dhd_timeout_expired(&tmo))
 *              if (poll_something())
 *                      break;
 *      if (dhd_timeout_expired(&tmo))
 *              fatal();
 */

void
dhd_timeout_start(dhd_timeout_t *tmo, uint usec)
{
        tmo->limit = usec;
        tmo->increment = 0;
        tmo->elapsed = 0;
        tmo->tick = jiffies_to_usecs(1);
}

int
dhd_timeout_expired(dhd_timeout_t *tmo)
{
        /* Does nothing the first call */
        if (tmo->increment == 0) {
                tmo->increment = 1;
                return 0;
        }

        if (tmo->elapsed >= tmo->limit)
                return 1;

        /* Add the delay that's about to take place */
        tmo->elapsed += tmo->increment;

        if ((!CAN_SLEEP()) || tmo->increment < tmo->tick) {
                OSL_DELAY(tmo->increment);
                tmo->increment *= 2;
                if (tmo->increment > tmo->tick)
                        tmo->increment = tmo->tick;
        } else {
                /*
                 * OSL_SLEEP() is corresponding to usleep_range(). In non-atomic
                 * context where the exact wakeup time is flexible, it would be good
                 * to use usleep_range() instead of udelay(). It takes a few advantages
                 * such as improving responsiveness and reducing power.
                 */
                OSL_SLEEP(jiffies_to_msecs(1));
        }

        return 0;
}

int
dhd_net2idx(dhd_info_t *dhd, struct net_device *net)
{
        int i = 0;

        if (!dhd) {
                DHD_ERROR(("%s : DHD_BAD_IF return\n", __FUNCTION__));
                return DHD_BAD_IF;
        }

        while (i < DHD_MAX_IFS) {
                if (dhd->iflist[i] && dhd->iflist[i]->net && (dhd->iflist[i]->net == net))
                        return i;
                i++;
        }

        return DHD_BAD_IF;
}

struct net_device * dhd_idx2net(void *pub, int ifidx)
{
        struct dhd_pub *dhd_pub = (struct dhd_pub *)pub;
        struct dhd_info *dhd_info;

        if (!dhd_pub || ifidx < 0 || ifidx >= DHD_MAX_IFS)
                return NULL;
        dhd_info = dhd_pub->info;
        if (dhd_info && dhd_info->iflist[ifidx])
                return dhd_info->iflist[ifidx]->net;
        return NULL;
}

int
dhd_ifname2idx(dhd_info_t *dhd, char *name)
{
        int i = DHD_MAX_IFS;

        ASSERT(dhd);

        if (name == NULL || *name == '\0')
                return 0;

        while (--i > 0)
                if (dhd->iflist[i] && !strncmp(dhd->iflist[i]->dngl_name, name, IFNAMSIZ))
                                break;

        DHD_TRACE(("%s: return idx %d for \"%s\"\n", __FUNCTION__, i, name));

        return i;       /* default - the primary interface */
}

char *
dhd_ifname(dhd_pub_t *dhdp, int ifidx)
{
        dhd_info_t *dhd = (dhd_info_t *)dhdp->info;

        ASSERT(dhd);

        if (ifidx < 0 || ifidx >= DHD_MAX_IFS) {
                DHD_ERROR(("%s: ifidx %d out of range\n", __FUNCTION__, ifidx));
                return "<if_bad>";
        }

        if (dhd->iflist[ifidx] == NULL) {
                DHD_ERROR(("%s: null i/f %d\n", __FUNCTION__, ifidx));
                return "<if_null>";
        }

        if (dhd->iflist[ifidx]->net)
                return dhd->iflist[ifidx]->net->name;

        return "<if_none>";
}

uint8 *
dhd_bssidx2bssid(dhd_pub_t *dhdp, int idx)
{
        int i;
        dhd_info_t *dhd = (dhd_info_t *)dhdp;

        ASSERT(dhd);
        for (i = 0; i < DHD_MAX_IFS; i++)
        if (dhd->iflist[i] && dhd->iflist[i]->bssidx == idx)
                return dhd->iflist[i]->mac_addr;

        return NULL;
}

static void
_dhd_set_multicast_list(dhd_info_t *dhd, int ifidx)
{
        struct net_device *dev;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
        struct netdev_hw_addr *ha;
#else
        struct dev_mc_list *mclist;
#endif // endif
        uint32 allmulti, cnt;

        wl_ioctl_t ioc;
        char *buf, *bufp;
        uint buflen;
        int ret;

#ifdef MCAST_LIST_ACCUMULATION
        int i;
        uint32 cnt_iface[DHD_MAX_IFS];
        cnt = 0;
        allmulti = 0;

        for (i = 0; i < DHD_MAX_IFS; i++) {
                if (dhd->iflist[i]) {
                        dev = dhd->iflist[i]->net;
                        if (!dev)
                                continue;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
                        netif_addr_lock_bh(dev);
#endif /* LINUX >= 2.6.27 */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
                        cnt_iface[i] = netdev_mc_count(dev);
                        cnt += cnt_iface[i];
#else
                        cnt += dev->mc_count;
#endif /* LINUX >= 2.6.35 */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
                        netif_addr_unlock_bh(dev);
#endif /* LINUX >= 2.6.27 */

                        /* Determine initial value of allmulti flag */
                        allmulti |= (dev->flags & IFF_ALLMULTI) ? TRUE : FALSE;
                }
        }
#else /* !MCAST_LIST_ACCUMULATION */
        if (!dhd->iflist[ifidx]) {
                DHD_ERROR(("%s : dhd->iflist[%d] was NULL\n", __FUNCTION__, ifidx));
                return;
        }
        dev = dhd->iflist[ifidx]->net;
        if (!dev)
                return;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
        netif_addr_lock_bh(dev);
#endif /* LINUX >= 2.6.27 */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
        cnt = netdev_mc_count(dev);
#else
        cnt = dev->mc_count;
#endif /* LINUX >= 2.6.35 */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
        netif_addr_unlock_bh(dev);
#endif /* LINUX >= 2.6.27 */

        /* Determine initial value of allmulti flag */
        allmulti = (dev->flags & IFF_ALLMULTI) ? TRUE : FALSE;
#endif /* MCAST_LIST_ACCUMULATION */

#ifdef PASS_ALL_MCAST_PKTS
#ifdef PKT_FILTER_SUPPORT
        if (!dhd->pub.early_suspended)
#endif /* PKT_FILTER_SUPPORT */
                allmulti = TRUE;
#endif /* PASS_ALL_MCAST_PKTS */

        /* Send down the multicast list first. */

        buflen = sizeof("mcast_list") + sizeof(cnt) + (cnt * ETHER_ADDR_LEN);
        if (!(bufp = buf = MALLOC(dhd->pub.osh, buflen))) {
                DHD_ERROR(("%s: out of memory for mcast_list, cnt %d\n",
                           dhd_ifname(&dhd->pub, ifidx), cnt));
                return;
        }

        strncpy(bufp, "mcast_list", buflen - 1);
        bufp[buflen - 1] = '\0';
        bufp += strlen("mcast_list") + 1;

        cnt = htol32(cnt);
        memcpy(bufp, &cnt, sizeof(cnt));
        bufp += sizeof(cnt);

#ifdef MCAST_LIST_ACCUMULATION
        for (i = 0; i < DHD_MAX_IFS; i++) {
                if (dhd->iflist[i]) {
                        DHD_TRACE(("_dhd_set_multicast_list: ifidx %d\n", i));
                        dev = dhd->iflist[i]->net;

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
                        netif_addr_lock_bh(dev);
#endif /* LINUX >= 2.6.27 */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
                        netdev_for_each_mc_addr(ha, dev) {
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif
                                if (!cnt_iface[i])
                                        break;
                                memcpy(bufp, ha->addr, ETHER_ADDR_LEN);
                                bufp += ETHER_ADDR_LEN;
                                DHD_TRACE(("_dhd_set_multicast_list: cnt "
                                        "%d " MACDBG "\n",
                                        cnt_iface[i], MAC2STRDBG(ha->addr)));
                                cnt_iface[i]--;
                        }
#else /* LINUX < 2.6.35 */
                        for (mclist = dev->mc_list; (mclist && (cnt_iface[i] > 0));
                                cnt_iface[i]--, mclist = mclist->next) {
                                memcpy(bufp, (void *)mclist->dmi_addr, ETHER_ADDR_LEN);
                                bufp += ETHER_ADDR_LEN;
                        }
#endif /* LINUX >= 2.6.35 */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
                        netif_addr_unlock_bh(dev);
#endif /* LINUX >= 2.6.27 */
                }
        }
#else /* !MCAST_LIST_ACCUMULATION */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
        netif_addr_lock_bh(dev);
#endif /* LINUX >= 2.6.27 */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
        netdev_for_each_mc_addr(ha, dev) {
                if (!cnt)
                        break;
                memcpy(bufp, ha->addr, ETHER_ADDR_LEN);
                bufp += ETHER_ADDR_LEN;
                cnt--;
        }
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif
#else /* LINUX < 2.6.35 */
        for (mclist = dev->mc_list; (mclist && (cnt > 0));
                cnt--, mclist = mclist->next) {
                memcpy(bufp, (void *)mclist->dmi_addr, ETHER_ADDR_LEN);
                bufp += ETHER_ADDR_LEN;
        }
#endif /* LINUX >= 2.6.35 */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
        netif_addr_unlock_bh(dev);
#endif /* LINUX >= 2.6.27 */
#endif /* MCAST_LIST_ACCUMULATION */

        memset(&ioc, 0, sizeof(ioc));
        ioc.cmd = WLC_SET_VAR;
        ioc.buf = buf;
        ioc.len = buflen;
        ioc.set = TRUE;

        ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
        if (ret < 0) {
                DHD_ERROR(("%s: set mcast_list failed, cnt %d\n",
                        dhd_ifname(&dhd->pub, ifidx), cnt));
                allmulti = cnt ? TRUE : allmulti;
        }

        MFREE(dhd->pub.osh, buf, buflen);

        /* Now send the allmulti setting.  This is based on the setting in the
         * net_device flags, but might be modified above to be turned on if we
         * were trying to set some addresses and dongle rejected it...
         */

        allmulti = htol32(allmulti);
        ret = dhd_iovar(&dhd->pub, ifidx, "allmulti", (char *)&allmulti,
                        sizeof(allmulti), NULL, 0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s: set allmulti %d failed\n",
                           dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
        }

        /* Finally, pick up the PROMISC flag as well, like the NIC driver does */

#ifdef MCAST_LIST_ACCUMULATION
        allmulti = 0;
        for (i = 0; i < DHD_MAX_IFS; i++) {
                if (dhd->iflist[i]) {
                        dev = dhd->iflist[i]->net;
                        allmulti |= (dev->flags & IFF_PROMISC) ? TRUE : FALSE;
                }
        }
#else
        allmulti = (dev->flags & IFF_PROMISC) ? TRUE : FALSE;
#endif /* MCAST_LIST_ACCUMULATION */

        allmulti = htol32(allmulti);

        memset(&ioc, 0, sizeof(ioc));
        ioc.cmd = WLC_SET_PROMISC;
        ioc.buf = &allmulti;
        ioc.len = sizeof(allmulti);
        ioc.set = TRUE;

        ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
        if (ret < 0) {
                DHD_ERROR(("%s: set promisc %d failed\n",
                           dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
        }
}

int
_dhd_set_mac_address(dhd_info_t *dhd, int ifidx, uint8 *addr)
{
        int ret;

        ret = dhd_iovar(&dhd->pub, ifidx, "cur_etheraddr", (char *)addr,
                        ETHER_ADDR_LEN, NULL, 0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s: set cur_etheraddr failed\n", dhd_ifname(&dhd->pub, ifidx)));
        } else {
                memcpy(dhd->iflist[ifidx]->net->dev_addr, addr, ETHER_ADDR_LEN);
                if (ifidx == 0)
                        memcpy(dhd->pub.mac.octet, addr, ETHER_ADDR_LEN);
        }

        return ret;
}

#ifdef SOFTAP
extern struct net_device *ap_net_dev;
extern tsk_ctl_t ap_eth_ctl; /* ap netdev heper thread ctl */
#endif // endif

#ifdef DHD_PSTA
/* Get psta/psr configuration configuration */
int dhd_get_psta_mode(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd = dhdp->info;
        return (int)dhd->psta_mode;
}
/* Set psta/psr configuration configuration */
int dhd_set_psta_mode(dhd_pub_t *dhdp, uint32 val)
{
        dhd_info_t *dhd = dhdp->info;
        dhd->psta_mode = val;
        return 0;
}
#endif /* DHD_PSTA */

#if (defined(DHD_WET) || defined(DHD_MCAST_REGEN) || defined(DHD_L2_FILTER))
static void
dhd_update_rx_pkt_chainable_state(dhd_pub_t* dhdp, uint32 idx)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;

        ASSERT(idx < DHD_MAX_IFS);

        ifp = dhd->iflist[idx];

        if (
#ifdef DHD_L2_FILTER
                (ifp->block_ping) ||
#endif // endif
#ifdef DHD_WET
                (dhd->wet_mode) ||
#endif // endif
#ifdef DHD_MCAST_REGEN
                (ifp->mcast_regen_bss_enable) ||
#endif // endif
                FALSE) {
                ifp->rx_pkt_chainable = FALSE;
        }
}
#endif /* DHD_WET || DHD_MCAST_REGEN || DHD_L2_FILTER */

#ifdef DHD_WET
/* Get wet configuration configuration */
int dhd_get_wet_mode(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd = dhdp->info;
        return (int)dhd->wet_mode;
}

/* Set wet configuration configuration */
int dhd_set_wet_mode(dhd_pub_t *dhdp, uint32 val)
{
        dhd_info_t *dhd = dhdp->info;
        dhd->wet_mode = val;
        dhd_update_rx_pkt_chainable_state(dhdp, 0);
        return 0;
}
#endif /* DHD_WET */

#if defined(WL_CFG80211) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
int32 dhd_role_to_nl80211_iftype(int32 role)
{
        switch (role) {
        case WLC_E_IF_ROLE_STA:
                return NL80211_IFTYPE_STATION;
        case WLC_E_IF_ROLE_AP:
                return NL80211_IFTYPE_AP;
        case WLC_E_IF_ROLE_WDS:
                return NL80211_IFTYPE_WDS;
        case WLC_E_IF_ROLE_P2P_GO:
                return NL80211_IFTYPE_P2P_GO;
        case WLC_E_IF_ROLE_P2P_CLIENT:
                return NL80211_IFTYPE_P2P_CLIENT;
        case WLC_E_IF_ROLE_IBSS:
        case WLC_E_IF_ROLE_NAN:
                return NL80211_IFTYPE_ADHOC;
        default:
                return NL80211_IFTYPE_UNSPECIFIED;
        }
}
#endif /* WL_CFG80211 && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0) */

static void
dhd_ifadd_event_handler(void *handle, void *event_info, u8 event)
{
        dhd_info_t *dhd = handle;
        dhd_if_event_t *if_event = event_info;
        int ifidx, bssidx;
        int ret;
#if defined(WL_CFG80211) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
        struct wl_if_event_info info;
#else
        struct net_device *ndev;
#endif /* WL_CFG80211 && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0) */

        BCM_REFERENCE(ret);
        if (event != DHD_WQ_WORK_IF_ADD) {
                DHD_ERROR(("%s: unexpected event \n", __FUNCTION__));
                return;
        }

        if (!dhd) {
                DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
                return;
        }

        if (!if_event) {
                DHD_ERROR(("%s: event data is null \n", __FUNCTION__));
                return;
        }

        dhd_net_if_lock_local(dhd);
        DHD_OS_WAKE_LOCK(&dhd->pub);
        DHD_PERIM_LOCK(&dhd->pub);

        ifidx = if_event->event.ifidx;
        bssidx = if_event->event.bssidx;
        DHD_TRACE(("%s: registering if with ifidx %d\n", __FUNCTION__, ifidx));

#if defined(WL_CFG80211) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
        if (if_event->event.ifidx > 0) {
                u8 *mac_addr;
                bzero(&info, sizeof(info));
                info.ifidx = ifidx;
                info.bssidx = bssidx;
                info.role = if_event->event.role;
                strncpy(info.name, if_event->name, IFNAMSIZ);
                if (is_valid_ether_addr(if_event->mac)) {
                        mac_addr = if_event->mac;
                } else {
                        mac_addr = NULL;
                }

                if (wl_cfg80211_post_ifcreate(dhd->pub.info->iflist[0]->net,
                        &info, mac_addr, NULL, true) == NULL) {
                        /* Do the post interface create ops */
                        DHD_ERROR(("Post ifcreate ops failed. Returning \n"));
                        goto done;
                }
        }
#else
        /* This path is for non-android case */
        /* The interface name in host and in event msg are same */
        /* if name in event msg is used to create dongle if list on host */
        ndev = dhd_allocate_if(&dhd->pub, ifidx, if_event->name,
                if_event->mac, bssidx, TRUE, if_event->name);
        if (!ndev) {
                DHD_ERROR(("%s: net device alloc failed  \n", __FUNCTION__));
                goto done;
        }

        DHD_PERIM_UNLOCK(&dhd->pub);
        ret = dhd_register_if(&dhd->pub, ifidx, TRUE);
        DHD_PERIM_LOCK(&dhd->pub);
        if (ret != BCME_OK) {
                DHD_ERROR(("%s: dhd_register_if failed\n", __FUNCTION__));
                dhd_remove_if(&dhd->pub, ifidx, TRUE);
                goto done;
        }
#endif /* WL_CFG80211 && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0) */

#ifndef PCIE_FULL_DONGLE
        /* Turn on AP isolation in the firmware for interfaces operating in AP mode */
        if (FW_SUPPORTED((&dhd->pub), ap) && (if_event->event.role != WLC_E_IF_ROLE_STA)) {
                uint32 var_int =  1;
                ret = dhd_iovar(&dhd->pub, ifidx, "ap_isolate", (char *)&var_int, sizeof(var_int),
                                NULL, 0, TRUE);
                if (ret != BCME_OK) {
                        DHD_ERROR(("%s: Failed to set ap_isolate to dongle\n", __FUNCTION__));
                        dhd_remove_if(&dhd->pub, ifidx, TRUE);
                }
        }
#endif /* PCIE_FULL_DONGLE */

done:
        MFREE(dhd->pub.osh, if_event, sizeof(dhd_if_event_t));

        DHD_PERIM_UNLOCK(&dhd->pub);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);
        dhd_net_if_unlock_local(dhd);
}

static void
dhd_ifdel_event_handler(void *handle, void *event_info, u8 event)
{
        dhd_info_t *dhd = handle;
        int ifidx;
        dhd_if_event_t *if_event = event_info;

        if (event != DHD_WQ_WORK_IF_DEL) {
                DHD_ERROR(("%s: unexpected event \n", __FUNCTION__));
                return;
        }

        if (!dhd) {
                DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
                return;
        }

        if (!if_event) {
                DHD_ERROR(("%s: event data is null \n", __FUNCTION__));
                return;
        }

        dhd_net_if_lock_local(dhd);
        DHD_OS_WAKE_LOCK(&dhd->pub);
        DHD_PERIM_LOCK(&dhd->pub);

        ifidx = if_event->event.ifidx;
        DHD_TRACE(("Removing interface with idx %d\n", ifidx));

        DHD_PERIM_UNLOCK(&dhd->pub);
        if (!dhd->pub.info->iflist[ifidx]) {
                /* No matching netdev found */
                DHD_ERROR(("Netdev not found! Do nothing.\n"));
                goto done;
        }
#if defined(WL_CFG80211) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
        if (if_event->event.ifidx > 0) {
                /* Do the post interface del ops */
                if (wl_cfg80211_post_ifdel(dhd->pub.info->iflist[ifidx]->net,
                                true, if_event->event.ifidx) != 0) {
                        DHD_TRACE(("Post ifdel ops failed. Returning \n"));
                        goto done;
                }
        }
#else
        /* For non-cfg80211 drivers */
        dhd_remove_if(&dhd->pub, ifidx, TRUE);
#endif /* WL_CFG80211 && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0) */

done:
        DHD_PERIM_LOCK(&dhd->pub);
        MFREE(dhd->pub.osh, if_event, sizeof(dhd_if_event_t));
        DHD_PERIM_UNLOCK(&dhd->pub);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);
        dhd_net_if_unlock_local(dhd);
}

static void
dhd_set_mac_addr_handler(void *handle, void *event_info, u8 event)
{
        dhd_info_t *dhd = handle;
        dhd_if_t *ifp = event_info;

        if (event != DHD_WQ_WORK_SET_MAC) {
                DHD_ERROR(("%s: unexpected event \n", __FUNCTION__));
        }

        if (!dhd) {
                DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
                return;
        }

        dhd_net_if_lock_local(dhd);
        DHD_OS_WAKE_LOCK(&dhd->pub);
        DHD_PERIM_LOCK(&dhd->pub);

#ifdef SOFTAP
        {
                unsigned long flags;
                bool in_ap = FALSE;
                DHD_GENERAL_LOCK(&dhd->pub, flags);
                in_ap = (ap_net_dev != NULL);
                DHD_GENERAL_UNLOCK(&dhd->pub, flags);

                if (in_ap)  {
                        DHD_ERROR(("attempt to set MAC for %s in AP Mode, blocked. \n",
                                   ifp->net->name));
                        goto done;
                }
        }
#endif /* SOFTAP */

        if (ifp == NULL || !dhd->pub.up) {
                DHD_ERROR(("%s: interface info not available/down \n", __FUNCTION__));
                goto done;
        }

        DHD_ERROR(("%s: MACID is overwritten\n", __FUNCTION__));
        ifp->set_macaddress = FALSE;
        if (_dhd_set_mac_address(dhd, ifp->idx, ifp->mac_addr) == 0)
                DHD_INFO(("%s: MACID is overwritten\n", __FUNCTION__));
        else
                DHD_ERROR(("%s: _dhd_set_mac_address() failed\n", __FUNCTION__));

done:
        DHD_PERIM_UNLOCK(&dhd->pub);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);
        dhd_net_if_unlock_local(dhd);
}

static void
dhd_set_mcast_list_handler(void *handle, void *event_info, u8 event)
{
        dhd_info_t *dhd = handle;
        int ifidx = (int)((long int)event_info);
        dhd_if_t *ifp = NULL;

        if (event != DHD_WQ_WORK_SET_MCAST_LIST) {
                DHD_ERROR(("%s: unexpected event \n", __FUNCTION__));
                return;
        }

        if (!dhd) {
                DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
                return;
        }

        dhd_net_if_lock_local(dhd);
        DHD_OS_WAKE_LOCK(&dhd->pub);
        DHD_PERIM_LOCK(&dhd->pub);

        ifp = dhd->iflist[ifidx];

        if (ifp == NULL || !dhd->pub.up) {
                DHD_ERROR(("%s: interface info not available/down \n", __FUNCTION__));
                goto done;
        }

#ifdef SOFTAP
        {
                bool in_ap = FALSE;
                unsigned long flags;
                DHD_GENERAL_LOCK(&dhd->pub, flags);
                in_ap = (ap_net_dev != NULL);
                DHD_GENERAL_UNLOCK(&dhd->pub, flags);

                if (in_ap)  {
                        DHD_ERROR(("set MULTICAST list for %s in AP Mode, blocked. \n",
                                   ifp->net->name));
                        ifp->set_multicast = FALSE;
                        goto done;
                }
        }
#endif /* SOFTAP */

        ifidx = ifp->idx;

#ifdef MCAST_LIST_ACCUMULATION
        ifidx = 0;
#endif /* MCAST_LIST_ACCUMULATION */

        _dhd_set_multicast_list(dhd, ifidx);
        DHD_INFO(("%s: set multicast list for if %d\n", __FUNCTION__, ifidx));

done:
        DHD_PERIM_UNLOCK(&dhd->pub);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);
        dhd_net_if_unlock_local(dhd);
}

static int
dhd_set_mac_address(struct net_device *dev, void *addr)
{
        int ret = 0;

        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        struct sockaddr *sa = (struct sockaddr *)addr;
        int ifidx;
        dhd_if_t *dhdif;

        ifidx = dhd_net2idx(dhd, dev);
        if (ifidx == DHD_BAD_IF)
                return -1;

        dhdif = dhd->iflist[ifidx];

        dhd_net_if_lock_local(dhd);
        memcpy(dhdif->mac_addr, sa->sa_data, ETHER_ADDR_LEN);
        dhdif->set_macaddress = TRUE;
        dhd_net_if_unlock_local(dhd);
        dhd_deferred_schedule_work(dhd->dhd_deferred_wq, (void *)dhdif, DHD_WQ_WORK_SET_MAC,
                dhd_set_mac_addr_handler, DHD_WQ_WORK_PRIORITY_LOW);
        return ret;
}

static void
dhd_set_multicast_list(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        int ifidx;

        ifidx = dhd_net2idx(dhd, dev);
        if (ifidx == DHD_BAD_IF)
                return;

        dhd->iflist[ifidx]->set_multicast = TRUE;
        dhd_deferred_schedule_work(dhd->dhd_deferred_wq, (void *)((long int)ifidx),
                DHD_WQ_WORK_SET_MCAST_LIST, dhd_set_mcast_list_handler, DHD_WQ_WORK_PRIORITY_LOW);
}

#ifdef DHD_UCODE_DOWNLOAD
/* Get ucode path */
char *
dhd_get_ucode_path(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd = dhdp->info;
        return dhd->uc_path;
}
#endif /* DHD_UCODE_DOWNLOAD */

#ifdef PROP_TXSTATUS
int
dhd_os_wlfc_block(dhd_pub_t *pub)
{
        dhd_info_t *di = (dhd_info_t *)(pub->info);
        ASSERT(di != NULL);
        spin_lock_bh(&di->wlfc_spinlock);
        return 1;
}

int
dhd_os_wlfc_unblock(dhd_pub_t *pub)
{
        dhd_info_t *di = (dhd_info_t *)(pub->info);

        ASSERT(di != NULL);
        spin_unlock_bh(&di->wlfc_spinlock);
        return 1;
}

#endif /* PROP_TXSTATUS */

/*  This routine do not support Packet chain feature, Currently tested for
 *  proxy arp feature
 */
int dhd_sendup(dhd_pub_t *dhdp, int ifidx, void *p)
{
        struct sk_buff *skb;
        void *skbhead = NULL;
        void *skbprev = NULL;
        dhd_if_t *ifp;
        ASSERT(!PKTISCHAINED(p));
        skb = PKTTONATIVE(dhdp->osh, p);

        ifp = dhdp->info->iflist[ifidx];
        skb->dev = ifp->net;

        skb->protocol = eth_type_trans(skb, skb->dev);

        if (in_interrupt()) {
                bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE,
                        __FUNCTION__, __LINE__);
                netif_rx(skb);
        } else {
                if (dhdp->info->rxthread_enabled) {
                        if (!skbhead) {
                                skbhead = skb;
                        } else {
                                PKTSETNEXT(dhdp->osh, skbprev, skb);
                        }
                        skbprev = skb;
                } else {
                        /* If the receive is not processed inside an ISR,
                         * the softirqd must be woken explicitly to service
                         * the NET_RX_SOFTIRQ.  In 2.6 kernels, this is handled
                         * by netif_rx_ni(), but in earlier kernels, we need
                         * to do it manually.
                         */
                        bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE,
                                __FUNCTION__, __LINE__);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
                        netif_rx_ni(skb);
#else
                        ulong flags;
                        netif_rx(skb);
                        local_irq_save(flags);
                        RAISE_RX_SOFTIRQ();
                        local_irq_restore(flags);
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0) */
                }
        }

        if (dhdp->info->rxthread_enabled && skbhead)
                dhd_sched_rxf(dhdp, skbhead);

        return BCME_OK;
}

int BCMFASTPATH
__dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, void *pktbuf)
{
        int ret = BCME_OK;
        dhd_info_t *dhd = (dhd_info_t *)(dhdp->info);
        struct ether_header *eh = NULL;
#if defined(DHD_L2_FILTER)
        dhd_if_t *ifp = dhd_get_ifp(dhdp, ifidx);
#endif // endif

        /* Reject if down */
        if (!dhdp->up || (dhdp->busstate == DHD_BUS_DOWN)) {
                /* free the packet here since the caller won't */
                PKTCFREE(dhdp->osh, pktbuf, TRUE);
                return -ENODEV;
        }

#ifdef PCIE_FULL_DONGLE
        if (dhdp->busstate == DHD_BUS_SUSPEND) {
                DHD_ERROR(("%s : pcie is still in suspend state!!\n", __FUNCTION__));
                PKTCFREE(dhdp->osh, pktbuf, TRUE);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20))
                return -ENODEV;
#else
                return NETDEV_TX_BUSY;
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20) */
        }
#endif /* PCIE_FULL_DONGLE */

        /* Reject if pktlen > MAX_MTU_SZ */
        if (PKTLEN(dhdp->osh, pktbuf) > MAX_MTU_SZ) {
                /* free the packet here since the caller won't */
                dhdp->tx_big_packets++;
                PKTCFREE(dhdp->osh, pktbuf, TRUE);
                return BCME_ERROR;
        }

#ifdef DHD_L2_FILTER
        /* if dhcp_unicast is enabled, we need to convert the */
        /* broadcast DHCP ACK/REPLY packets to Unicast. */
        if (ifp->dhcp_unicast) {
            uint8* mac_addr;
            uint8* ehptr = NULL;
            int ret;
            ret = bcm_l2_filter_get_mac_addr_dhcp_pkt(dhdp->osh, pktbuf, ifidx, &mac_addr);
            if (ret == BCME_OK) {
                /*  if given mac address having valid entry in sta list
                 *  copy the given mac address, and return with BCME_OK
                */
                if (dhd_find_sta(dhdp, ifidx, mac_addr)) {
                    ehptr = PKTDATA(dhdp->osh, pktbuf);
                    bcopy(mac_addr, ehptr + ETHER_DEST_OFFSET, ETHER_ADDR_LEN);
                }
            }
        }

        if (ifp->grat_arp && DHD_IF_ROLE_AP(dhdp, ifidx)) {
            if (bcm_l2_filter_gratuitous_arp(dhdp->osh, pktbuf) == BCME_OK) {
                        PKTCFREE(dhdp->osh, pktbuf, TRUE);
                        return BCME_ERROR;
            }
        }

        if (ifp->parp_enable && DHD_IF_ROLE_AP(dhdp, ifidx)) {
                ret = dhd_l2_filter_pkt_handle(dhdp, ifidx, pktbuf, TRUE);

                /* Drop the packets if l2 filter has processed it already
                 * otherwise continue with the normal path
                 */
                if (ret == BCME_OK) {
                        PKTCFREE(dhdp->osh, pktbuf, TRUE);
                        return BCME_ERROR;
                }
        }
#endif /* DHD_L2_FILTER */
        /* Update multicast statistic */
        if (PKTLEN(dhdp->osh, pktbuf) >= ETHER_HDR_LEN) {
                uint8 *pktdata = (uint8 *)PKTDATA(dhdp->osh, pktbuf);
                eh = (struct ether_header *)pktdata;

                if (ETHER_ISMULTI(eh->ether_dhost))
                        dhdp->tx_multicast++;
                if (ntoh16(eh->ether_type) == ETHER_TYPE_802_1X) {
#ifdef DHD_LOSSLESS_ROAMING
                        uint8 prio = (uint8)PKTPRIO(pktbuf);

                        /* back up 802.1x's priority */
                        dhdp->prio_8021x = prio;
#endif /* DHD_LOSSLESS_ROAMING */
                        DBG_EVENT_LOG(dhdp, WIFI_EVENT_DRIVER_EAPOL_FRAME_TRANSMIT_REQUESTED);
                        atomic_inc(&dhd->pend_8021x_cnt);
#if defined(WL_CFG80211) && defined(WL_WPS_SYNC)
                        wl_handle_wps_states(dhd_idx2net(dhdp, ifidx),
                                pktdata, PKTLEN(dhdp->osh, pktbuf), TRUE);
#endif /* WL_CFG80211 && WL_WPS_SYNC */
#if defined(DHD_8021X_DUMP)
                        dhd_dump_eapol_4way_message(dhd_ifname(dhdp, ifidx), pktdata, TRUE);
#endif /* DHD_8021X_DUMP */
                }

                if (ntoh16(eh->ether_type) == ETHER_TYPE_IP) {
#ifdef DHD_DHCP_DUMP
                        dhd_dhcp_dump(dhd_ifname(dhdp, ifidx), pktdata, TRUE);
#endif /* DHD_DHCP_DUMP */
#ifdef DHD_ICMP_DUMP
                        dhd_icmp_dump(dhd_ifname(dhdp, ifidx), pktdata, TRUE);
#endif /* DHD_ICMP_DUMP */
                }
        } else {
                        PKTCFREE(dhdp->osh, pktbuf, TRUE);
                        return BCME_ERROR;
        }

        {
                /* Look into the packet and update the packet priority */
#ifndef PKTPRIO_OVERRIDE
                if (PKTPRIO(pktbuf) == 0)
#endif /* !PKTPRIO_OVERRIDE */
                {
#if defined(QOS_MAP_SET)
                        pktsetprio_qms(pktbuf, wl_get_up_table(dhdp, ifidx), FALSE);
#else
                        pktsetprio(pktbuf, FALSE);
#endif /* QOS_MAP_SET */
                }
#ifndef PKTPRIO_OVERRIDE
                else {
                        /* Some protocols like OZMO use priority values from 256..263.
                         * these are magic values to indicate a specific 802.1d priority.
                         * make sure that priority field is in range of 0..7
                         */
                        PKTSETPRIO(pktbuf, PKTPRIO(pktbuf) & 0x7);
                }
#endif /* !PKTPRIO_OVERRIDE */
        }

#ifdef SUPPORT_SET_TID
        dhd_set_tid_based_on_uid(dhdp, pktbuf);
#endif  /* SUPPORT_SET_TID */

#ifdef PCIE_FULL_DONGLE
        /*
         * Lkup the per interface hash table, for a matching flowring. If one is not
         * available, allocate a unique flowid and add a flowring entry.
         * The found or newly created flowid is placed into the pktbuf's tag.
         */
        ret = dhd_flowid_update(dhdp, ifidx, dhdp->flow_prio_map[(PKTPRIO(pktbuf))], pktbuf);
        if (ret != BCME_OK) {
                PKTCFREE(dhd->pub.osh, pktbuf, TRUE);
                return ret;
        }
#endif // endif

#ifdef PROP_TXSTATUS
        if (dhd_wlfc_is_supported(dhdp)) {
                /* store the interface ID */
                DHD_PKTTAG_SETIF(PKTTAG(pktbuf), ifidx);

                /* store destination MAC in the tag as well */
                DHD_PKTTAG_SETDSTN(PKTTAG(pktbuf), eh->ether_dhost);

                /* decide which FIFO this packet belongs to */
                if (ETHER_ISMULTI(eh->ether_dhost))
                        /* one additional queue index (highest AC + 1) is used for bc/mc queue */
                        DHD_PKTTAG_SETFIFO(PKTTAG(pktbuf), AC_COUNT);
                else
                        DHD_PKTTAG_SETFIFO(PKTTAG(pktbuf), WME_PRIO2AC(PKTPRIO(pktbuf)));
        } else
#endif /* PROP_TXSTATUS */
        {
                /* If the protocol uses a data header, apply it */
                dhd_prot_hdrpush(dhdp, ifidx, pktbuf);
        }

        /* Use bus module to send data frame */
#ifdef DYNAMIC_MUMIMO_CONTROL
        if (dhdp->reassoc_mumimo_sw &&
                dhd_check_eapol_4way_message(PKTDATA(dhdp->osh, pktbuf)) == EAPOL_4WAY_M4) {
                dhdp->reassoc_mumimo_sw = 0;
                DHD_ENABLE_RUNTIME_PM(dhdp);
        }
#endif /* DYNAMIC_MUMIMO_CONTROL */
#ifdef PROP_TXSTATUS
        {
                if (dhd_wlfc_commit_packets(dhdp, (f_commitpkt_t)dhd_bus_txdata,
                        dhdp->bus, pktbuf, TRUE) == WLFC_UNSUPPORTED) {
                        /* non-proptxstatus way */
#ifdef BCMPCIE
                        ret = dhd_bus_txdata(dhdp->bus, pktbuf, (uint8)ifidx);
#else
                        ret = dhd_bus_txdata(dhdp->bus, pktbuf);
#endif /* BCMPCIE */
                }
        }
#else
#ifdef BCMPCIE
        ret = dhd_bus_txdata(dhdp->bus, pktbuf, (uint8)ifidx);
#else
        ret = dhd_bus_txdata(dhdp->bus, pktbuf);
#endif /* BCMPCIE */
#endif /* PROP_TXSTATUS */

        return ret;
}

int BCMFASTPATH
dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, void *pktbuf)
{
        int ret = 0;
        unsigned long flags;
        dhd_if_t *ifp;

        DHD_GENERAL_LOCK(dhdp, flags);
        ifp = dhd_get_ifp(dhdp, ifidx);
        if (!ifp || ifp->del_in_progress) {
                DHD_ERROR(("%s: ifp:%p del_in_progress:%d\n",
                        __FUNCTION__, ifp, ifp ? ifp->del_in_progress : 0));
                DHD_GENERAL_UNLOCK(dhdp, flags);
                PKTCFREE(dhdp->osh, pktbuf, TRUE);
                return -ENODEV;
        }
        if (DHD_BUS_CHECK_DOWN_OR_DOWN_IN_PROGRESS(dhdp)) {
                DHD_ERROR(("%s: returning as busstate=%d\n",
                        __FUNCTION__, dhdp->busstate));
                DHD_GENERAL_UNLOCK(dhdp, flags);
                PKTCFREE(dhdp->osh, pktbuf, TRUE);
                return -ENODEV;
        }
        DHD_IF_SET_TX_ACTIVE(ifp, DHD_TX_SEND_PKT);
        DHD_BUS_BUSY_SET_IN_SEND_PKT(dhdp);
        DHD_GENERAL_UNLOCK(dhdp, flags);

#ifdef DHD_PCIE_RUNTIMEPM
        if (dhdpcie_runtime_bus_wake(dhdp, FALSE, __builtin_return_address(0))) {
                DHD_ERROR(("%s : pcie is still in suspend state!!\n", __FUNCTION__));
                PKTCFREE(dhdp->osh, pktbuf, TRUE);
                ret = -EBUSY;
                goto exit;
        }
#endif /* DHD_PCIE_RUNTIMEPM */

        DHD_GENERAL_LOCK(dhdp, flags);
        if (DHD_BUS_CHECK_SUSPEND_OR_SUSPEND_IN_PROGRESS(dhdp)) {
                DHD_ERROR(("%s: bus is in suspend(%d) or suspending(0x%x) state!!\n",
                        __FUNCTION__, dhdp->busstate, dhdp->dhd_bus_busy_state));
                DHD_BUS_BUSY_CLEAR_IN_SEND_PKT(dhdp);
                DHD_IF_CLR_TX_ACTIVE(ifp, DHD_TX_SEND_PKT);
                dhd_os_tx_completion_wake(dhdp);
                dhd_os_busbusy_wake(dhdp);
                DHD_GENERAL_UNLOCK(dhdp, flags);
                PKTCFREE(dhdp->osh, pktbuf, TRUE);
                return -ENODEV;
        }
        DHD_GENERAL_UNLOCK(dhdp, flags);

        ret = __dhd_sendpkt(dhdp, ifidx, pktbuf);

#ifdef DHD_PCIE_RUNTIMEPM
exit:
#endif // endif
        DHD_GENERAL_LOCK(dhdp, flags);
        DHD_BUS_BUSY_CLEAR_IN_SEND_PKT(dhdp);
        DHD_IF_CLR_TX_ACTIVE(ifp, DHD_TX_SEND_PKT);
        dhd_os_tx_completion_wake(dhdp);
        dhd_os_busbusy_wake(dhdp);
        DHD_GENERAL_UNLOCK(dhdp, flags);
        return ret;
}

#if defined(DHD_LB_TXP)

int BCMFASTPATH
dhd_lb_sendpkt(dhd_info_t *dhd, struct net_device *net,
        int ifidx, void *skb)
{
        DHD_LB_STATS_PERCPU_ARR_INCR(dhd->tx_start_percpu_run_cnt);

        /* If the feature is disabled run-time do TX from here */
        if (atomic_read(&dhd->lb_txp_active) == 0) {
                DHD_LB_STATS_PERCPU_ARR_INCR(dhd->txp_percpu_run_cnt);
                 return __dhd_sendpkt(&dhd->pub, ifidx, skb);
        }

        /* Store the address of net device and interface index in the Packet tag */
        DHD_LB_TX_PKTTAG_SET_NETDEV((dhd_tx_lb_pkttag_fr_t *)PKTTAG(skb), net);
        DHD_LB_TX_PKTTAG_SET_IFIDX((dhd_tx_lb_pkttag_fr_t *)PKTTAG(skb), ifidx);

        /* Enqueue the skb into tx_pend_queue */
        skb_queue_tail(&dhd->tx_pend_queue, skb);

        DHD_TRACE(("%s(): Added skb %p for netdev %p \r\n", __FUNCTION__, skb, net));

        /* Dispatch the Tx job to be processed by the tx_tasklet */
        dhd_lb_tx_dispatch(&dhd->pub);

        return NETDEV_TX_OK;
}
#endif /* DHD_LB_TXP */

int BCMFASTPATH
dhd_start_xmit(struct sk_buff *skb, struct net_device *net)
{
        int ret;
        uint datalen;
        void *pktbuf;
        dhd_info_t *dhd = DHD_DEV_INFO(net);
        dhd_if_t *ifp = NULL;
        int ifidx;
        unsigned long flags;
        uint8 htsfdlystat_sz = 0;

        DHD_TRACE(("%s: Enter\n", __FUNCTION__));

        if (dhd_query_bus_erros(&dhd->pub)) {
                return -ENODEV;
        }

        DHD_GENERAL_LOCK(&dhd->pub, flags);
        DHD_BUS_BUSY_SET_IN_TX(&dhd->pub);
        DHD_GENERAL_UNLOCK(&dhd->pub, flags);

#ifdef DHD_PCIE_RUNTIMEPM
        if (dhdpcie_runtime_bus_wake(&dhd->pub, FALSE, dhd_start_xmit)) {
                /* In order to avoid pkt loss. Return NETDEV_TX_BUSY until run-time resumed. */
                /* stop the network queue temporarily until resume done */
                DHD_GENERAL_LOCK(&dhd->pub, flags);
                if (!dhdpcie_is_resume_done(&dhd->pub)) {
                        dhd_bus_stop_queue(dhd->pub.bus);
                }
                DHD_BUS_BUSY_CLEAR_IN_TX(&dhd->pub);
                dhd_os_busbusy_wake(&dhd->pub);
                DHD_GENERAL_UNLOCK(&dhd->pub, flags);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20))
                return -ENODEV;
#else
                return NETDEV_TX_BUSY;
#endif // endif
        }
#endif /* DHD_PCIE_RUNTIMEPM */

        DHD_GENERAL_LOCK(&dhd->pub, flags);
        if (DHD_BUS_CHECK_SUSPEND_OR_SUSPEND_IN_PROGRESS(&dhd->pub)) {
                DHD_ERROR(("%s: bus is in suspend(%d) or suspending(0x%x) state!!\n",
                        __FUNCTION__, dhd->pub.busstate, dhd->pub.dhd_bus_busy_state));
                DHD_BUS_BUSY_CLEAR_IN_TX(&dhd->pub);
#ifdef PCIE_FULL_DONGLE
                /* Stop tx queues if suspend is in progress */
                if (DHD_BUS_CHECK_ANY_SUSPEND_IN_PROGRESS(&dhd->pub)) {
                        dhd_bus_stop_queue(dhd->pub.bus);
                }
#endif /* PCIE_FULL_DONGLE */
                dhd_os_busbusy_wake(&dhd->pub);
                DHD_GENERAL_UNLOCK(&dhd->pub, flags);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20))
                return -ENODEV;
#else
                return NETDEV_TX_BUSY;
#endif // endif
        }

        DHD_OS_WAKE_LOCK(&dhd->pub);
        DHD_PERIM_LOCK_TRY(DHD_FWDER_UNIT(dhd), lock_taken);

#if defined(DHD_HANG_SEND_UP_TEST)
        if (dhd->pub.req_hang_type == HANG_REASON_BUS_DOWN) {
                dhd->pub.busstate = DHD_BUS_DOWN;
        }
#endif /* DHD_HANG_SEND_UP_TEST */

        /* Reject if down */
        if (dhd->pub.hang_was_sent || DHD_BUS_CHECK_DOWN_OR_DOWN_IN_PROGRESS(&dhd->pub)) {
                DHD_ERROR(("%s: xmit rejected pub.up=%d busstate=%d \n",
                        __FUNCTION__, dhd->pub.up, dhd->pub.busstate));
                netif_stop_queue(net);
                /* Send Event when bus down detected during data session */
                if (dhd->pub.up && !dhd->pub.hang_was_sent) {
                        DHD_ERROR(("%s: Event HANG sent up\n", __FUNCTION__));
                        dhd->pub.hang_reason = HANG_REASON_BUS_DOWN;
                        net_os_send_hang_message(net);
                }
                DHD_BUS_BUSY_CLEAR_IN_TX(&dhd->pub);
                dhd_os_busbusy_wake(&dhd->pub);
                DHD_GENERAL_UNLOCK(&dhd->pub, flags);
                DHD_PERIM_UNLOCK_TRY(DHD_FWDER_UNIT(dhd), lock_taken);
                DHD_OS_WAKE_UNLOCK(&dhd->pub);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20))
                return -ENODEV;
#else
                return NETDEV_TX_BUSY;
#endif // endif
        }

        ifp = DHD_DEV_IFP(net);
        ifidx = DHD_DEV_IFIDX(net);
        if (!ifp || (ifidx == DHD_BAD_IF) ||
                ifp->del_in_progress) {
                DHD_ERROR(("%s: ifidx %d ifp:%p del_in_progress:%d\n",
                __FUNCTION__, ifidx, ifp, (ifp ? ifp->del_in_progress : 0)));
                netif_stop_queue(net);
                DHD_BUS_BUSY_CLEAR_IN_TX(&dhd->pub);
                dhd_os_busbusy_wake(&dhd->pub);
                DHD_GENERAL_UNLOCK(&dhd->pub, flags);
                DHD_PERIM_UNLOCK_TRY(DHD_FWDER_UNIT(dhd), lock_taken);
                DHD_OS_WAKE_UNLOCK(&dhd->pub);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20))
                return -ENODEV;
#else
                return NETDEV_TX_BUSY;
#endif // endif
        }

        DHD_IF_SET_TX_ACTIVE(ifp, DHD_TX_START_XMIT);
        DHD_GENERAL_UNLOCK(&dhd->pub, flags);

        ASSERT(ifidx == dhd_net2idx(dhd, net));
        ASSERT((ifp != NULL) && ((ifidx < DHD_MAX_IFS) && (ifp == dhd->iflist[ifidx])));

        bcm_object_trace_opr(skb, BCM_OBJDBG_ADD_PKT, __FUNCTION__, __LINE__);

        /* re-align socket buffer if "skb->data" is odd address */
        if (((unsigned long)(skb->data)) & 0x1) {
                unsigned char *data = skb->data;
                uint32 length = skb->len;
                PKTPUSH(dhd->pub.osh, skb, 1);
                memmove(skb->data, data, length);
                PKTSETLEN(dhd->pub.osh, skb, length);
        }

        datalen  = PKTLEN(dhd->pub.osh, skb);

        /* Make sure there's enough room for any header */
        if (skb_headroom(skb) < dhd->pub.hdrlen + htsfdlystat_sz) {
                struct sk_buff *skb2;

                DHD_INFO(("%s: insufficient headroom\n",
                          dhd_ifname(&dhd->pub, ifidx)));
                dhd->pub.tx_realloc++;

                bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE, __FUNCTION__, __LINE__);
                skb2 = skb_realloc_headroom(skb, dhd->pub.hdrlen + htsfdlystat_sz);

                dev_kfree_skb(skb);
                if ((skb = skb2) == NULL) {
                        DHD_ERROR(("%s: skb_realloc_headroom failed\n",
                                   dhd_ifname(&dhd->pub, ifidx)));
                        ret = -ENOMEM;
                        goto done;
                }
                bcm_object_trace_opr(skb, BCM_OBJDBG_ADD_PKT, __FUNCTION__, __LINE__);
        }

        /* Convert to packet */
        if (!(pktbuf = PKTFRMNATIVE(dhd->pub.osh, skb))) {
                DHD_ERROR(("%s: PKTFRMNATIVE failed\n",
                           dhd_ifname(&dhd->pub, ifidx)));
                bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE, __FUNCTION__, __LINE__);
                dev_kfree_skb_any(skb);
                ret = -ENOMEM;
                goto done;
        }

#ifdef DHD_WET
        /* wet related packet proto manipulation should be done in DHD
           since dongle doesn't have complete payload
         */
        if (WET_ENABLED(&dhd->pub) &&
                        (dhd_wet_send_proc(dhd->pub.wet_info, pktbuf, &pktbuf) < 0)) {
                DHD_INFO(("%s:%s: wet send proc failed\n",
                                __FUNCTION__, dhd_ifname(&dhd->pub, ifidx)));
                PKTFREE(dhd->pub.osh, pktbuf, FALSE);
                ret =  -EFAULT;
                goto done;
        }
#endif /* DHD_WET */

#ifdef DHD_PSTA
        /* PSR related packet proto manipulation should be done in DHD
         * since dongle doesn't have complete payload
         */
        if (PSR_ENABLED(&dhd->pub) &&
                (dhd_psta_proc(&dhd->pub, ifidx, &pktbuf, TRUE) < 0)) {

                        DHD_ERROR(("%s:%s: psta send proc failed\n", __FUNCTION__,
                                dhd_ifname(&dhd->pub, ifidx)));
        }
#endif /* DHD_PSTA */

#ifdef DHDTCPSYNC_FLOOD_BLK
        if (dhd_tcpdata_get_flag(&dhd->pub, pktbuf) == FLAG_SYNCACK) {
                ifp->tsyncack_txed ++;
        }
#endif /* DHDTCPSYNC_FLOOD_BLK */

#ifdef DHDTCPACK_SUPPRESS
        if (dhd->pub.tcpack_sup_mode == TCPACK_SUP_HOLD) {
                /* If this packet has been hold or got freed, just return */
                if (dhd_tcpack_hold(&dhd->pub, pktbuf, ifidx)) {
                        ret = 0;
                        goto done;
                }
        } else {
                /* If this packet has replaced another packet and got freed, just return */
                if (dhd_tcpack_suppress(&dhd->pub, pktbuf)) {
                        ret = 0;
                        goto done;
                }
        }
#endif /* DHDTCPACK_SUPPRESS */

        /*
         * If Load Balance is enabled queue the packet
         * else send directly from here.
         */
#if defined(DHD_LB_TXP)
        ret = dhd_lb_sendpkt(dhd, net, ifidx, pktbuf);
#else
        ret = __dhd_sendpkt(&dhd->pub, ifidx, pktbuf);
#endif // endif

done:
        if (ret) {
                ifp->stats.tx_dropped++;
                dhd->pub.tx_dropped++;
        } else {
#ifdef PROP_TXSTATUS
                /* tx_packets counter can counted only when wlfc is disabled */
                if (!dhd_wlfc_is_supported(&dhd->pub))
#endif // endif
                {
                        dhd->pub.tx_packets++;
                        ifp->stats.tx_packets++;
                        ifp->stats.tx_bytes += datalen;
                }
        }

        DHD_GENERAL_LOCK(&dhd->pub, flags);
        DHD_BUS_BUSY_CLEAR_IN_TX(&dhd->pub);
        DHD_IF_CLR_TX_ACTIVE(ifp, DHD_TX_START_XMIT);
        dhd_os_tx_completion_wake(&dhd->pub);
        dhd_os_busbusy_wake(&dhd->pub);
        DHD_GENERAL_UNLOCK(&dhd->pub, flags);
        DHD_PERIM_UNLOCK_TRY(DHD_FWDER_UNIT(dhd), lock_taken);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);
        /* Return ok: we always eat the packet */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20))
        return 0;
#else
        return NETDEV_TX_OK;
#endif // endif
}

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
void dhd_rx_wq_wakeup(struct work_struct *ptr)
{
        struct dhd_rx_tx_work *work;
        struct dhd_pub * pub;

        work = container_of(ptr, struct dhd_rx_tx_work, work);

        pub = work->pub;

        DHD_RPM(("%s: ENTER. \n", __FUNCTION__));

        if (atomic_read(&pub->block_bus) || pub->busstate == DHD_BUS_DOWN) {
                return;
        }

        DHD_OS_WAKE_LOCK(pub);
        if (pm_runtime_get_sync(dhd_bus_to_dev(pub->bus)) >= 0) {

                // do nothing but wakeup the bus.
                pm_runtime_mark_last_busy(dhd_bus_to_dev(pub->bus));
                pm_runtime_put_autosuspend(dhd_bus_to_dev(pub->bus));
        }
        DHD_OS_WAKE_UNLOCK(pub);
        kfree(work);
}

void dhd_start_xmit_wq_adapter(struct work_struct *ptr)
{
        struct dhd_rx_tx_work *work;
        int ret;
        dhd_info_t *dhd;
        struct dhd_bus * bus;

        work = container_of(ptr, struct dhd_rx_tx_work, work);

        dhd = DHD_DEV_INFO(work->net);

        bus = dhd->pub.bus;

        if (atomic_read(&dhd->pub.block_bus)) {
                kfree_skb(work->skb);
                kfree(work);
                dhd_netif_start_queue(bus);
                return;
        }

        if (pm_runtime_get_sync(dhd_bus_to_dev(bus)) >= 0) {
                ret = dhd_start_xmit(work->skb, work->net);
                pm_runtime_mark_last_busy(dhd_bus_to_dev(bus));
                pm_runtime_put_autosuspend(dhd_bus_to_dev(bus));
        }
        kfree(work);
        dhd_netif_start_queue(bus);

        if (ret)
                netdev_err(work->net,
                           "error: dhd_start_xmit():%d\n", ret);
}

int BCMFASTPATH
dhd_start_xmit_wrapper(struct sk_buff *skb, struct net_device *net)
{
        struct dhd_rx_tx_work *start_xmit_work;
        int ret;
        dhd_info_t *dhd = DHD_DEV_INFO(net);

        if (dhd->pub.busstate == DHD_BUS_SUSPEND) {
                DHD_RPM(("%s: wakeup the bus using workqueue.\n", __FUNCTION__));

                dhd_netif_stop_queue(dhd->pub.bus);

                start_xmit_work = (struct dhd_rx_tx_work*)
                        kmalloc(sizeof(*start_xmit_work), GFP_ATOMIC);

                if (!start_xmit_work) {
                        netdev_err(net,
                                   "error: failed to alloc start_xmit_work\n");
                        ret = -ENOMEM;
                        goto exit;
                }

                INIT_WORK(&start_xmit_work->work, dhd_start_xmit_wq_adapter);
                start_xmit_work->skb = skb;
                start_xmit_work->net = net;
                queue_work(dhd->tx_wq, &start_xmit_work->work);
                ret = NET_XMIT_SUCCESS;

        } else if (dhd->pub.busstate == DHD_BUS_DATA) {
                ret = dhd_start_xmit(skb, net);
        } else {
                /* when bus is down */
                ret = -ENODEV;
        }

exit:
        return ret;
}
void
dhd_bus_wakeup_work(dhd_pub_t *dhdp)
{
        struct dhd_rx_tx_work *rx_work;
        dhd_info_t *dhd = (dhd_info_t *)dhdp->info;

        rx_work = kmalloc(sizeof(*rx_work), GFP_ATOMIC);
        if (!rx_work) {
                DHD_ERROR(("%s: start_rx_work alloc error. \n", __FUNCTION__));
                return;
        }

        INIT_WORK(&rx_work->work, dhd_rx_wq_wakeup);
        rx_work->pub = dhdp;
        queue_work(dhd->rx_wq, &rx_work->work);

}
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */
void
dhd_txflowcontrol(dhd_pub_t *dhdp, int ifidx, bool state)
{
        struct net_device *net;
        dhd_info_t *dhd = dhdp->info;
        int i;

        DHD_TRACE(("%s: Enter\n", __FUNCTION__));

        ASSERT(dhd);

#ifdef DHD_LOSSLESS_ROAMING
        /* block flowcontrol during roaming */
        if ((dhdp->dequeue_prec_map == 1 << PRIO_8021D_NC) && state == ON) {
                return;
        }
#endif // endif

        if (ifidx == ALL_INTERFACES) {
                /* Flow control on all active interfaces */
                dhdp->txoff = state;
                for (i = 0; i < DHD_MAX_IFS; i++) {
                        if (dhd->iflist[i]) {
                                net = dhd->iflist[i]->net;
                                if (state == ON)
                                        netif_stop_queue(net);
                                else
                                        netif_wake_queue(net);
                        }
                }
        } else {
                if (dhd->iflist[ifidx]) {
                        net = dhd->iflist[ifidx]->net;
                        if (state == ON)
                                netif_stop_queue(net);
                        else
                                netif_wake_queue(net);
                }
        }
}

#ifdef DHD_RX_DUMP
typedef struct {
        uint16 type;
        const char *str;
} PKTTYPE_INFO;

static const PKTTYPE_INFO packet_type_info[] =
{
        { ETHER_TYPE_IP, "IP" },
        { ETHER_TYPE_ARP, "ARP" },
        { ETHER_TYPE_BRCM, "BRCM" },
        { ETHER_TYPE_802_1X, "802.1X" },
#ifdef BCMWAPI_WAI
        { ETHER_TYPE_WAI, "WAPI" },
#endif /* BCMWAPI_WAI */
        { 0, ""}
};

static const char *_get_packet_type_str(uint16 type)
{
        int i;
        int n = sizeof(packet_type_info)/sizeof(packet_type_info[1]) - 1;

        for (i = 0; i < n; i++) {
                if (packet_type_info[i].type == type)
                        return packet_type_info[i].str;
        }

        return packet_type_info[n].str;
}
#endif /* DHD_RX_DUMP */

#ifdef DHD_MCAST_REGEN
/*
 * Description: This function is called to do the reverse translation
 *
 * Input    eh - pointer to the ethernet header
 */
int32
dhd_mcast_reverse_translation(struct ether_header *eh)
{
        uint8 *iph;
        uint32 dest_ip;

        iph = (uint8 *)eh + ETHER_HDR_LEN;
        dest_ip = ntoh32(*((uint32 *)(iph + IPV4_DEST_IP_OFFSET)));

        /* Only IP packets are handled */
        if (eh->ether_type != hton16(ETHER_TYPE_IP))
                return BCME_ERROR;

        /* Non-IPv4 multicast packets are not handled */
        if (IP_VER(iph) != IP_VER_4)
                return BCME_ERROR;

        /*
         * The packet has a multicast IP and unicast MAC. That means
         * we have to do the reverse translation
         */
        if (IPV4_ISMULTI(dest_ip) && !ETHER_ISMULTI(&eh->ether_dhost)) {
                ETHER_FILL_MCAST_ADDR_FROM_IP(eh->ether_dhost, dest_ip);
                return BCME_OK;
        }

        return BCME_ERROR;
}
#endif /* MCAST_REGEN */

#ifdef SHOW_LOGTRACE
static void
dhd_netif_rx_ni(struct sk_buff * skb)
{
        /* Do not call netif_recieve_skb as this workqueue scheduler is
         * not from NAPI Also as we are not in INTR context, do not call
         * netif_rx, instead call netif_rx_ni (for kerenl >= 2.6) which
         * does netif_rx, disables irq, raise NET_IF_RX softirq and
         * enables interrupts back
         */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
        netif_rx_ni(skb);
#else
        ulong flags;
        netif_rx(skb);
        local_irq_save(flags);
        RAISE_RX_SOFTIRQ();
        local_irq_restore(flags);
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0) */
}

static int
dhd_event_logtrace_pkt_process(dhd_pub_t *dhdp, struct sk_buff * skb)
{
        dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
        int ret = BCME_OK;
        uint datalen;
        bcm_event_msg_u_t evu;
        void *data = NULL;
        void *pktdata = NULL;
        bcm_event_t *pvt_data;
        uint pktlen;

        DHD_TRACE(("%s:Enter\n", __FUNCTION__));

        /* In dhd_rx_frame, header is stripped using skb_pull
         * of size ETH_HLEN, so adjust pktlen accordingly
         */
        pktlen = skb->len + ETH_HLEN;

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 22)
        pktdata = (void *)skb_mac_header(skb);
#else
        pktdata = (void *)skb->mac.raw;
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 22) */

        ret = wl_host_event_get_data(pktdata, pktlen, &evu);

        if (ret != BCME_OK) {
                DHD_ERROR(("%s: wl_host_event_get_data err = %d\n",
                        __FUNCTION__, ret));
                goto exit;
        }

        datalen = ntoh32(evu.event.datalen);

        pvt_data = (bcm_event_t *)pktdata;
        data = &pvt_data[1];

        dhd_dbg_trace_evnt_handler(dhdp, data, &dhd->event_data, datalen);

exit:
        return ret;
}

#define DHD_EVENT_LOGTRACE_BOUND 12
#define DHD_EVENT_LOGTRACE_RESCHEDULE_DELAY_MS 1

static void
dhd_event_logtrace_process(struct work_struct * work)
{
/* Ignore compiler warnings due to -Werror=cast-qual */
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
        struct delayed_work *dw = to_delayed_work(work);
        struct dhd_info *dhd =
                container_of(dw, struct dhd_info, event_log_dispatcher_work);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif

        dhd_pub_t *dhdp;
        struct sk_buff *skb;
        uint32 qlen;
        uint32 process_len;

        if (!dhd) {
                DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
                return;
        }

        dhdp = &dhd->pub;

        if (!dhdp) {
                DHD_ERROR(("%s: dhd pub is null \n", __FUNCTION__));
                return;
        }

        qlen = skb_queue_len(&dhd->evt_trace_queue);
        process_len = MIN(qlen, DHD_EVENT_LOGTRACE_BOUND);

        /* Run while loop till bound is reached or skb queue is empty */
        while (process_len--) {
                int ifid = 0;
                skb = skb_dequeue(&dhd->evt_trace_queue);
                if (skb == NULL) {
                        DHD_ERROR(("%s: skb is NULL, which is not valid case\n",
                                __FUNCTION__));
                        break;
                }
                BCM_REFERENCE(ifid);
#ifdef PCIE_FULL_DONGLE
                /* Check if pkt is from INFO ring or WLC_E_TRACE */
                ifid = DHD_PKTTAG_IFID((dhd_pkttag_fr_t *)PKTTAG(skb));
                if (ifid == DHD_DUMMY_INFO_IF) {
                        /* Process logtrace from info rings */
                        dhd_event_logtrace_infobuf_pkt_process(dhdp, skb, &dhd->event_data);
                } else
#endif /* PCIE_FULL_DONGLE */
                {
                        /* Processing WLC_E_TRACE case OR non PCIE PCIE_FULL_DONGLE case */
                        dhd_event_logtrace_pkt_process(dhdp, skb);
                }

                /* Send packet up if logtrace_pkt_sendup is TRUE */
                if (dhdp->logtrace_pkt_sendup) {
#ifdef DHD_USE_STATIC_CTRLBUF
                        /* If bufs are allocated via static buf pool
                         * and logtrace_pkt_sendup enabled, make a copy,
                         * free the local one and send the copy up.
                         */
                        void *npkt = PKTDUP(dhdp->osh, skb);
                        /* Clone event and send it up */
                        PKTFREE_STATIC(dhdp->osh, skb, FALSE);
                        if (npkt) {
                                skb = npkt;
                        } else {
                                DHD_ERROR(("skb clone failed. dropping logtrace pkt.\n"));
                                /* Packet is already freed, go to next packet */
                                continue;
                        }
#endif /* DHD_USE_STATIC_CTRLBUF */
#ifdef PCIE_FULL_DONGLE
                        /* For infobuf packets as if is DHD_DUMMY_INFO_IF,
                         * to send skb to network layer, assign skb->dev with
                         * Primary interface n/w device
                         */
                        if (ifid == DHD_DUMMY_INFO_IF) {
                                skb = PKTTONATIVE(dhdp->osh, skb);
                                skb->dev = dhd->iflist[0]->net;
                        }
#endif /* PCIE_FULL_DONGLE */
                        /* Send pkt UP */
                        dhd_netif_rx_ni(skb);
                } else  {
                        /* Don't send up. Free up the packet. */
#ifdef DHD_USE_STATIC_CTRLBUF
                        PKTFREE_STATIC(dhdp->osh, skb, FALSE);
#else
                        PKTFREE(dhdp->osh, skb, FALSE);
#endif /* DHD_USE_STATIC_CTRLBUF */
                }
        }

        /* Reschedule the workqueue if more packets to be processed */
        if (qlen >= DHD_EVENT_LOGTRACE_BOUND) {
                schedule_delayed_work(&dhd->event_log_dispatcher_work,
                        msecs_to_jiffies(DHD_EVENT_LOGTRACE_RESCHEDULE_DELAY_MS));
        }
}

void
dhd_event_logtrace_enqueue(dhd_pub_t *dhdp, int ifidx, void *pktbuf)
{
        dhd_info_t *dhd = (dhd_info_t *)dhdp->info;

#ifdef PCIE_FULL_DONGLE
        /* Add ifidx in the PKTTAG */
        DHD_PKTTAG_SET_IFID((dhd_pkttag_fr_t *)PKTTAG(pktbuf), ifidx);
#endif /* PCIE_FULL_DONGLE */
        skb_queue_tail(&dhd->evt_trace_queue, pktbuf);

        schedule_delayed_work(&dhd->event_log_dispatcher_work, 0);
}

void
dhd_event_logtrace_flush_queue(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
        struct sk_buff *skb;

        while ((skb = skb_dequeue(&dhd->evt_trace_queue)) != NULL) {
#ifdef DHD_USE_STATIC_CTRLBUF
                PKTFREE_STATIC(dhdp->osh, skb, FALSE);
#else
                PKTFREE(dhdp->osh, skb, FALSE);
#endif /* DHD_USE_STATIC_CTRLBUF */
        }
}
#endif /* SHOW_LOGTRACE */

/** Called when a frame is received by the dongle on interface 'ifidx' */
void
dhd_rx_frame(dhd_pub_t *dhdp, int ifidx, void *pktbuf, int numpkt, uint8 chan)
{
        dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
        struct sk_buff *skb;
        uchar *eth;
        uint len;
        void *data, *pnext = NULL;
        int i;
        dhd_if_t *ifp;
        wl_event_msg_t event;
        int tout_rx = 0;
        int tout_ctrl = 0;
        void *skbhead = NULL;
        void *skbprev = NULL;
        uint16 protocol;
#if defined(DHD_RX_DUMP) || defined(DHD_8021X_DUMP) || defined(DHD_DHCP_DUMP) || \
        defined(DHD_ICMP_DUMP) || defined(DHD_WAKE_STATUS) || defined(WL_WPS_SYNC)
        unsigned char *dump_data;
#endif /* DHD_RX_DUMP || DHD_8021X_DUMP || DHD_DHCP_DUMP || DHD_ICMP_DUMP || DHD_WAKE_STATUS */
#ifdef DHD_MCAST_REGEN
        uint8 interface_role;
        if_flow_lkup_t *if_flow_lkup;
        unsigned long flags;
#endif // endif
#ifdef DHD_WAKE_STATUS
        int pkt_wake = 0;
        wake_counts_t *wcp = NULL;
#endif /* DHD_WAKE_STATUS */

        DHD_TRACE(("%s: Enter\n", __FUNCTION__));

        for (i = 0; pktbuf && i < numpkt; i++, pktbuf = pnext) {
                struct ether_header *eh;

                pnext = PKTNEXT(dhdp->osh, pktbuf);
                PKTSETNEXT(dhdp->osh, pktbuf, NULL);

                /* info ring "debug" data, which is not a 802.3 frame, is sent/hacked with a
                 * special ifidx of DHD_DUMMY_INFO_IF.  This is just internal to dhd to get the data
                 * from dhd_msgbuf.c:dhd_prot_infobuf_cmplt_process() to here (dhd_rx_frame).
                 */
                if (ifidx == DHD_DUMMY_INFO_IF) {
                        /* Event msg printing is called from dhd_rx_frame which is in Tasklet
                         * context in case of PCIe FD, in case of other bus this will be from
                         * DPC context. If we get bunch of events from Dongle then printing all
                         * of them from Tasklet/DPC context that too in data path is costly.
                         * Also in the new Dongle SW(4359, 4355 onwards) console prints too come as
                         * events with type WLC_E_TRACE.
                         * We'll print this console logs from the WorkQueue context by enqueing SKB
                         * here and Dequeuing will be done in WorkQueue and will be freed only if
                         * logtrace_pkt_sendup is TRUE
                         */
#ifdef SHOW_LOGTRACE
                        dhd_event_logtrace_enqueue(dhdp, ifidx, pktbuf);
#else /* !SHOW_LOGTRACE */
                /* If SHOW_LOGTRACE not defined and ifidx is DHD_DUMMY_INFO_IF,
                 * free the PKT here itself
                 */
#ifdef DHD_USE_STATIC_CTRLBUF
                PKTFREE_STATIC(dhdp->osh, pktbuf, FALSE);
#else
                PKTFREE(dhdp->osh, pktbuf, FALSE);
#endif /* DHD_USE_STATIC_CTRLBUF */
#endif /* SHOW_LOGTRACE */
                        continue;
                }
#ifdef DHD_WAKE_STATUS
                pkt_wake = dhd_bus_get_bus_wake(dhdp);
                wcp = dhd_bus_get_wakecount(dhdp);
                if (wcp == NULL) {
                        /* If wakeinfo count buffer is null do not  update wake count values */
                        pkt_wake = 0;
                }
#endif /* DHD_WAKE_STATUS */

                eh = (struct ether_header *)PKTDATA(dhdp->osh, pktbuf);

                if (ifidx >= DHD_MAX_IFS) {
                        DHD_ERROR(("%s: ifidx(%d) Out of bound. drop packet\n",
                                __FUNCTION__, ifidx));
                        if (ntoh16(eh->ether_type) == ETHER_TYPE_BRCM) {
#ifdef DHD_USE_STATIC_CTRLBUF
                                PKTFREE_STATIC(dhdp->osh, pktbuf, FALSE);
#else
                                PKTFREE(dhdp->osh, pktbuf, FALSE);
#endif /* DHD_USE_STATIC_CTRLBUF */
                        } else {
                                PKTCFREE(dhdp->osh, pktbuf, FALSE);
                        }
                        continue;
                }

                ifp = dhd->iflist[ifidx];
                if (ifp == NULL) {
                        DHD_ERROR(("%s: ifp is NULL. drop packet\n",
                                __FUNCTION__));
                        if (ntoh16(eh->ether_type) == ETHER_TYPE_BRCM) {
#ifdef DHD_USE_STATIC_CTRLBUF
                                PKTFREE_STATIC(dhdp->osh, pktbuf, FALSE);
#else
                                PKTFREE(dhdp->osh, pktbuf, FALSE);
#endif /* DHD_USE_STATIC_CTRLBUF */
                        } else {
                                PKTCFREE(dhdp->osh, pktbuf, FALSE);
                        }
                        continue;
                }

                /* Dropping only data packets before registering net device to avoid kernel panic */
#ifndef PROP_TXSTATUS_VSDB
                if ((!ifp->net || ifp->net->reg_state != NETREG_REGISTERED) &&
                        (ntoh16(eh->ether_type) != ETHER_TYPE_BRCM))
#else
                if ((!ifp->net || ifp->net->reg_state != NETREG_REGISTERED || !dhd->pub.up) &&
                        (ntoh16(eh->ether_type) != ETHER_TYPE_BRCM))
#endif /* PROP_TXSTATUS_VSDB */
                {
                        DHD_ERROR(("%s: net device is NOT registered yet. drop packet\n",
                        __FUNCTION__));
                        PKTCFREE(dhdp->osh, pktbuf, FALSE);
                        continue;
                }

#ifdef PROP_TXSTATUS
                if (dhd_wlfc_is_header_only_pkt(dhdp, pktbuf)) {
                        /* WLFC may send header only packet when
                        there is an urgent message but no packet to
                        piggy-back on
                        */
                        PKTCFREE(dhdp->osh, pktbuf, FALSE);
                        continue;
                }
#endif // endif
#ifdef DHD_L2_FILTER
                /* If block_ping is enabled drop the ping packet */
                if (ifp->block_ping) {
                        if (bcm_l2_filter_block_ping(dhdp->osh, pktbuf) == BCME_OK) {
                                PKTCFREE(dhdp->osh, pktbuf, FALSE);
                                continue;
                        }
                }
                if (ifp->grat_arp && DHD_IF_ROLE_STA(dhdp, ifidx)) {
                    if (bcm_l2_filter_gratuitous_arp(dhdp->osh, pktbuf) == BCME_OK) {
                                PKTCFREE(dhdp->osh, pktbuf, FALSE);
                                continue;
                    }
                }
                if (ifp->parp_enable && DHD_IF_ROLE_AP(dhdp, ifidx)) {
                        int ret = dhd_l2_filter_pkt_handle(dhdp, ifidx, pktbuf, FALSE);

                        /* Drop the packets if l2 filter has processed it already
                         * otherwise continue with the normal path
                         */
                        if (ret == BCME_OK) {
                                PKTCFREE(dhdp->osh, pktbuf, TRUE);
                                continue;
                        }
                }
                if (ifp->block_tdls) {
                        if (bcm_l2_filter_block_tdls(dhdp->osh, pktbuf) == BCME_OK) {
                                PKTCFREE(dhdp->osh, pktbuf, FALSE);
                                continue;
                        }
                }
#endif /* DHD_L2_FILTER */

#ifdef DHD_MCAST_REGEN
                DHD_FLOWID_LOCK(dhdp->flowid_lock, flags);
                if_flow_lkup = (if_flow_lkup_t *)dhdp->if_flow_lkup;
                ASSERT(if_flow_lkup);

                interface_role = if_flow_lkup[ifidx].role;
                DHD_FLOWID_UNLOCK(dhdp->flowid_lock, flags);

                if (ifp->mcast_regen_bss_enable && (interface_role != WLC_E_IF_ROLE_WDS) &&
                                !DHD_IF_ROLE_AP(dhdp, ifidx) &&
                                ETHER_ISUCAST(eh->ether_dhost)) {
                        if (dhd_mcast_reverse_translation(eh) ==  BCME_OK) {
#ifdef DHD_PSTA
                                /* Change bsscfg to primary bsscfg for unicast-multicast packets */
                                if ((dhd_get_psta_mode(dhdp) == DHD_MODE_PSTA) ||
                                                (dhd_get_psta_mode(dhdp) == DHD_MODE_PSR)) {
                                        if (ifidx != 0) {
                                                /* Let the primary in PSTA interface handle this
                                                 * frame after unicast to Multicast conversion
                                                 */
                                                ifp = dhd_get_ifp(dhdp, 0);
                                                ASSERT(ifp);
                                        }
                                }
                        }
#endif /* PSTA */
                }
#endif /* MCAST_REGEN */

#ifdef DHDTCPSYNC_FLOOD_BLK
                if (dhd_tcpdata_get_flag(dhdp, pktbuf) == FLAG_SYNC) {
                        int delta_sec;
                        int delta_sync;
                        int sync_per_sec;
                        u64 curr_time = DIV_U64_BY_U32(OSL_LOCALTIME_NS(), NSEC_PER_SEC);
                        ifp->tsync_rcvd ++;
                        delta_sync = ifp->tsync_rcvd - ifp->tsyncack_txed;
                        delta_sec = curr_time - ifp->last_sync;
                        if (delta_sec > 1) {
                                sync_per_sec = delta_sync/delta_sec;
                                if (sync_per_sec > TCP_SYNC_FLOOD_LIMIT) {
                                        schedule_work(&ifp->blk_tsfl_work);
                                        DHD_ERROR(("ifx %d TCP SYNC Flood attack suspected! "
                                                "sync recvied %d pkt/sec \n",
                                                ifidx, sync_per_sec));
                                }
                                dhd_reset_tcpsync_info_by_ifp(ifp);
                        }

                }
#endif /* DHDTCPSYNC_FLOOD_BLK */

#ifdef DHDTCPACK_SUPPRESS
                dhd_tcpdata_info_get(dhdp, pktbuf);
#endif // endif
                skb = PKTTONATIVE(dhdp->osh, pktbuf);

                ASSERT(ifp);
                skb->dev = ifp->net;
#ifdef DHD_WET
                /* wet related packet proto manipulation should be done in DHD
                 * since dongle doesn't have complete payload
                 */
                if (WET_ENABLED(&dhd->pub) && (dhd_wet_recv_proc(dhd->pub.wet_info,
                                pktbuf) < 0)) {
                        DHD_INFO(("%s:%s: wet recv proc failed\n",
                                __FUNCTION__, dhd_ifname(dhdp, ifidx)));
                }
#endif /* DHD_WET */

#ifdef DHD_PSTA
                if (PSR_ENABLED(dhdp) &&
                                (dhd_psta_proc(dhdp, ifidx, &pktbuf, FALSE) < 0)) {
                        DHD_ERROR(("%s:%s: psta recv proc failed\n", __FUNCTION__,
                                dhd_ifname(dhdp, ifidx)));
                }
#endif /* DHD_PSTA */

#ifdef PCIE_FULL_DONGLE
                if ((DHD_IF_ROLE_AP(dhdp, ifidx) || DHD_IF_ROLE_P2PGO(dhdp, ifidx)) &&
                        (!ifp->ap_isolate)) {
                        eh = (struct ether_header *)PKTDATA(dhdp->osh, pktbuf);
                        if (ETHER_ISUCAST(eh->ether_dhost)) {
                                if (dhd_find_sta(dhdp, ifidx, (void *)eh->ether_dhost)) {
                                        dhd_sendpkt(dhdp, ifidx, pktbuf);
                                        continue;
                                }
                        } else {
                                void *npktbuf = NULL;
                                if ((ntoh16(eh->ether_type) != ETHER_TYPE_IAPP_L2_UPDATE) &&
                                        (npktbuf = PKTDUP(dhdp->osh, pktbuf)) != NULL) {
                                        dhd_sendpkt(dhdp, ifidx, npktbuf);
                                }
                        }
                }
#endif /* PCIE_FULL_DONGLE */
#ifdef DYNAMIC_MUMIMO_CONTROL
                if (dhdp->reassoc_mumimo_sw && dhdp->murx_block_eapol &&
                        dhd_check_eapol_4way_message((void *)(skb->data)) == EAPOL_4WAY_M1) {
                        DHD_ERROR(("%s: Reassoc is in progress..."
                                " drop EAPOL M1 frame\n", __FUNCTION__));
                        PKTFREE(dhdp->osh, pktbuf, FALSE);
                        continue;
                }
#endif /* DYNAMIC_MUMIMO_CONTROL */

                /* Get the protocol, maintain skb around eth_type_trans()
                 * The main reason for this hack is for the limitation of
                 * Linux 2.4 where 'eth_type_trans' uses the 'net->hard_header_len'
                 * to perform skb_pull inside vs ETH_HLEN. Since to avoid
                 * coping of the packet coming from the network stack to add
                 * BDC, Hardware header etc, during network interface registration
                 * we set the 'net->hard_header_len' to ETH_HLEN + extra space required
                 * for BDC, Hardware header etc. and not just the ETH_HLEN
                 */
                eth = skb->data;
                len = skb->len;

#if defined(DHD_RX_DUMP) || defined(DHD_8021X_DUMP) || defined(DHD_DHCP_DUMP) || \
        defined(DHD_ICMP_DUMP) || defined(DHD_WAKE_STATUS) || defined(WL_WPS_SYNC)
                dump_data = skb->data;
#endif /* DHD_RX_DUMP || DHD_8021X_DUMP || DHD_DHCP_DUMP || DHD_ICMP_DUMP || DHD_WAKE_STATUS */

                protocol = (skb->data[12] << 8) | skb->data[13];
                if (protocol == ETHER_TYPE_802_1X) {
                        DBG_EVENT_LOG(dhdp, WIFI_EVENT_DRIVER_EAPOL_FRAME_RECEIVED);
#if defined(WL_CFG80211) && defined(WL_WPS_SYNC)
                        wl_handle_wps_states(ifp->net, dump_data, len, FALSE);
#endif /* WL_CFG80211 && WL_WPS_SYNC */
#ifdef DHD_8021X_DUMP
                        dhd_dump_eapol_4way_message(dhd_ifname(dhdp, ifidx), dump_data, FALSE);
#endif /* DHD_8021X_DUMP */
                }

                if (protocol != ETHER_TYPE_BRCM && protocol == ETHER_TYPE_IP) {
#ifdef DHD_DHCP_DUMP
                        dhd_dhcp_dump(dhd_ifname(dhdp, ifidx), dump_data, FALSE);
#endif /* DHD_DHCP_DUMP */
#ifdef DHD_ICMP_DUMP
                        dhd_icmp_dump(dhd_ifname(dhdp, ifidx), dump_data, FALSE);
#endif /* DHD_ICMP_DUMP */
                }
#ifdef DHD_RX_DUMP
                DHD_ERROR(("RX DUMP[%s] - %s\n",
                        dhd_ifname(dhdp, ifidx), _get_packet_type_str(protocol)));
                if (protocol != ETHER_TYPE_BRCM) {
                        if (dump_data[0] == 0xFF) {
                                DHD_ERROR(("%s: BROADCAST\n", __FUNCTION__));

                                if ((dump_data[12] == 8) &&
                                        (dump_data[13] == 6)) {
                                        DHD_ERROR(("%s: ARP %d\n",
                                                __FUNCTION__, dump_data[0x15]));
                                }
                        } else if (dump_data[0] & 1) {
                                DHD_ERROR(("%s: MULTICAST: " MACDBG "\n",
                                        __FUNCTION__, MAC2STRDBG(dump_data)));
                        }
#ifdef DHD_RX_FULL_DUMP
                        {
                                int k;
                                for (k = 0; k < skb->len; k++) {
                                        DHD_ERROR(("%02X ", dump_data[k]));
                                        if ((k & 15) == 15)
                                                DHD_ERROR(("\n"));
                                }
                                DHD_ERROR(("\n"));
                        }
#endif /* DHD_RX_FULL_DUMP */
                }
#endif /* DHD_RX_DUMP */

#if defined(DHD_WAKE_STATUS) && defined(DHD_WAKEPKT_DUMP)
                if (pkt_wake) {
                        prhex("[wakepkt_dump]", (char*)dump_data, MIN(len, 32));
                }
#endif /* DHD_WAKE_STATUS && DHD_WAKEPKT_DUMP */

                skb->protocol = eth_type_trans(skb, skb->dev);

                if (skb->pkt_type == PACKET_MULTICAST) {
                        dhd->pub.rx_multicast++;
                        ifp->stats.multicast++;
                }

                skb->data = eth;
                skb->len = len;

                DHD_DBG_PKT_MON_RX(dhdp, skb);
#ifdef DHD_PKT_LOGGING
                DHD_PKTLOG_RX(dhdp, skb);
#endif /* DHD_PKT_LOGGING */
                /* Strip header, count, deliver upward */
                skb_pull(skb, ETH_HLEN);

                /* Process special event packets and then discard them */
                memset(&event, 0, sizeof(event));

                if (ntoh16(skb->protocol) == ETHER_TYPE_BRCM) {
                        bcm_event_msg_u_t evu;
                        int ret_event;
                        int event_type;

                        ret_event = wl_host_event_get_data(
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 22)
                        skb_mac_header(skb),
#else
                        skb->mac.raw,
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 22) */
                        len, &evu);

                        if (ret_event != BCME_OK) {
                                DHD_ERROR(("%s: wl_host_event_get_data err = %d\n",
                                        __FUNCTION__, ret_event));
#ifdef DHD_USE_STATIC_CTRLBUF
                                PKTFREE_STATIC(dhdp->osh, pktbuf, FALSE);
#else
                                PKTFREE(dhdp->osh, pktbuf, FALSE);
#endif // endif
                                continue;
                        }

                        memcpy(&event, &evu.event, sizeof(wl_event_msg_t));
                        event_type = ntoh32_ua((void *)&event.event_type);
#ifdef SHOW_LOGTRACE
                        /* Event msg printing is called from dhd_rx_frame which is in Tasklet
                         * context in case of PCIe FD, in case of other bus this will be from
                         * DPC context. If we get bunch of events from Dongle then printing all
                         * of them from Tasklet/DPC context that too in data path is costly.
                         * Also in the new Dongle SW(4359, 4355 onwards) console prints too come as
                         * events with type WLC_E_TRACE.
                         * We'll print this console logs from the WorkQueue context by enqueing SKB
                         * here and Dequeuing will be done in WorkQueue and will be freed only if
                         * logtrace_pkt_sendup is true
                         */
                        if (event_type == WLC_E_TRACE) {
                                DHD_TRACE(("%s: WLC_E_TRACE\n", __FUNCTION__));
                                dhd_event_logtrace_enqueue(dhdp, ifidx, pktbuf);
                                continue;
                        }
#endif /* SHOW_LOGTRACE */

                        ret_event = dhd_wl_host_event(dhd, ifidx,
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 22)
                        skb_mac_header(skb),
#else
                        skb->mac.raw,
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 22) */
                        len, &event, &data);

                        wl_event_to_host_order(&event);
                        if (!tout_ctrl)
                                tout_ctrl = DHD_PACKET_TIMEOUT_MS;

#if defined(PNO_SUPPORT)
                        if (event_type == WLC_E_PFN_NET_FOUND) {
                                /* enforce custom wake lock to garantee that Kernel not suspended */
                                tout_ctrl = CUSTOM_PNO_EVENT_LOCK_xTIME * DHD_PACKET_TIMEOUT_MS;
                        }
#endif /* PNO_SUPPORT */
                        if (numpkt != 1) {
                                DHD_TRACE(("%s: Got BRCM event packet in a chained packet.\n",
                                __FUNCTION__));
                        }

#ifdef DHD_WAKE_STATUS
                        if (unlikely(pkt_wake)) {
#ifdef DHD_WAKE_EVENT_STATUS
                                if (event.event_type < WLC_E_LAST) {
                                        wcp->rc_event[event.event_type]++;
                                        wcp->rcwake++;
                                        pkt_wake = 0;
                                }
#endif /* DHD_WAKE_EVENT_STATUS */
                        }
#endif /* DHD_WAKE_STATUS */

                        /* For delete virtual interface event, wl_host_event returns positive
                         * i/f index, do not proceed. just free the pkt.
                         */
                        if ((event_type == WLC_E_IF) && (ret_event > 0)) {
                                DHD_ERROR(("%s: interface is deleted. Free event packet\n",
                                __FUNCTION__));
#ifdef DHD_USE_STATIC_CTRLBUF
                                PKTFREE_STATIC(dhdp->osh, pktbuf, FALSE);
#else
                                PKTFREE(dhdp->osh, pktbuf, FALSE);
#endif // endif
                                continue;
                        }

                        /*
                         * For the event packets, there is a possibility
                         * of ifidx getting modifed.Thus update the ifp
                         * once again.
                         */
                        ASSERT(ifidx < DHD_MAX_IFS && dhd->iflist[ifidx]);
                        ifp = dhd->iflist[ifidx];
#ifndef PROP_TXSTATUS_VSDB
                        if (!(ifp && ifp->net && (ifp->net->reg_state == NETREG_REGISTERED)))
#else
                        if (!(ifp && ifp->net && (ifp->net->reg_state == NETREG_REGISTERED) &&
                                dhd->pub.up))
#endif /* PROP_TXSTATUS_VSDB */
                        {
                                DHD_ERROR(("%s: net device is NOT registered. drop event packet\n",
                                __FUNCTION__));
#ifdef DHD_USE_STATIC_CTRLBUF
                                PKTFREE_STATIC(dhdp->osh, pktbuf, FALSE);
#else
                                PKTFREE(dhdp->osh, pktbuf, FALSE);
#endif // endif
                                continue;
                        }

                        if (dhdp->wl_event_enabled) {
#ifdef DHD_USE_STATIC_CTRLBUF
                                /* If event bufs are allocated via static buf pool
                                 * and wl events are enabled, make a copy, free the
                                 * local one and send the copy up.
                                 */
                                void *npkt = PKTDUP(dhdp->osh, skb);
                                /* Clone event and send it up */
                                PKTFREE_STATIC(dhdp->osh, pktbuf, FALSE);
                                if (npkt) {
                                        skb = npkt;
                                } else {
                                        DHD_ERROR(("skb clone failed. dropping event.\n"));
                                        continue;
                                }
#endif /* DHD_USE_STATIC_CTRLBUF */
                        } else {
                                /* If event enabled not explictly set, drop events */
#ifdef DHD_USE_STATIC_CTRLBUF
                                PKTFREE_STATIC(dhdp->osh, pktbuf, FALSE);
#else
                                PKTFREE(dhdp->osh, pktbuf, FALSE);
#endif /* DHD_USE_STATIC_CTRLBUF */
                                continue;
                        }
                } else {
                        tout_rx = DHD_PACKET_TIMEOUT_MS;

#ifdef PROP_TXSTATUS
                        dhd_wlfc_save_rxpath_ac_time(dhdp, (uint8)PKTPRIO(skb));
#endif /* PROP_TXSTATUS */

#ifdef DHD_WAKE_STATUS
                        if (unlikely(pkt_wake)) {
                                wcp->rxwake++;
#ifdef DHD_WAKE_RX_STATUS
#define ETHER_ICMP6_HEADER      20
#define ETHER_IPV6_SADDR (ETHER_ICMP6_HEADER + 2)
#define ETHER_IPV6_DAADR (ETHER_IPV6_SADDR + IPV6_ADDR_LEN)
#define ETHER_ICMPV6_TYPE (ETHER_IPV6_DAADR + IPV6_ADDR_LEN)

                                if (ntoh16(skb->protocol) == ETHER_TYPE_ARP) /* ARP */
                                        wcp->rx_arp++;
                                if (dump_data[0] == 0xFF) { /* Broadcast */
                                        wcp->rx_bcast++;
                                } else if (dump_data[0] & 0x01) { /* Multicast */
                                        wcp->rx_mcast++;
                                        if (ntoh16(skb->protocol) == ETHER_TYPE_IPV6) {
                                            wcp->rx_multi_ipv6++;
                                            if ((skb->len > ETHER_ICMP6_HEADER) &&
                                                (dump_data[ETHER_ICMP6_HEADER] == IPPROTO_ICMPV6)) {
                                                wcp->rx_icmpv6++;
                                                if (skb->len > ETHER_ICMPV6_TYPE) {
                                                    switch (dump_data[ETHER_ICMPV6_TYPE]) {
                                                    case NDISC_ROUTER_ADVERTISEMENT:
                                                        wcp->rx_icmpv6_ra++;
                                                        break;
                                                    case NDISC_NEIGHBOUR_ADVERTISEMENT:
                                                        wcp->rx_icmpv6_na++;
                                                        break;
                                                    case NDISC_NEIGHBOUR_SOLICITATION:
                                                        wcp->rx_icmpv6_ns++;
                                                        break;
                                                    }
                                                }
                                            }
                                        } else if (dump_data[2] == 0x5E) {
                                                wcp->rx_multi_ipv4++;
                                        } else {
                                                wcp->rx_multi_other++;
                                        }
                                } else { /* Unicast */
                                        wcp->rx_ucast++;
                                }
#undef ETHER_ICMP6_HEADER
#undef ETHER_IPV6_SADDR
#undef ETHER_IPV6_DAADR
#undef ETHER_ICMPV6_TYPE
#endif /* DHD_WAKE_RX_STATUS */
                                pkt_wake = 0;
                        }
#endif /* DHD_WAKE_STATUS */
                }

#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 11, 0)
                ifp->net->last_rx = jiffies;
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(4, 11, 0) */

                if (ntoh16(skb->protocol) != ETHER_TYPE_BRCM) {
                        dhdp->dstats.rx_bytes += skb->len;
                        dhdp->rx_packets++; /* Local count */
                        ifp->stats.rx_bytes += skb->len;
                        ifp->stats.rx_packets++;
                }

                if (in_interrupt()) {
                        bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE,
                                __FUNCTION__, __LINE__);
                        DHD_PERIM_UNLOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
#if defined(DHD_LB_RXP)
                        netif_receive_skb(skb);
#else /* !defined(DHD_LB_RXP) */
                        netif_rx(skb);
#endif /* !defined(DHD_LB_RXP) */
                        DHD_PERIM_LOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
                } else {
                        if (dhd->rxthread_enabled) {
                                if (!skbhead)
                                        skbhead = skb;
                                else
                                        PKTSETNEXT(dhdp->osh, skbprev, skb);
                                skbprev = skb;
                        } else {

                                /* If the receive is not processed inside an ISR,
                                 * the softirqd must be woken explicitly to service
                                 * the NET_RX_SOFTIRQ.  In 2.6 kernels, this is handled
                                 * by netif_rx_ni(), but in earlier kernels, we need
                                 * to do it manually.
                                 */
                                bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE,
                                        __FUNCTION__, __LINE__);

#if (defined(ARGOS_RPS_CPU_CTL) && defined(ARGOS_CPU_SCHEDULER)) || \
        defined(ARGOS_NOTIFY_CB)
                argos_register_notifier_deinit();
#endif /* (ARGOS_RPS_CPU_CTL && ARGOS_CPU_SCHEDULER) || ARGOS_NOTIFY_CB */
#if defined(BCMPCIE) && defined(DHDTCPACK_SUPPRESS)
                dhd_tcpack_suppress_set(&dhd->pub, TCPACK_SUP_OFF);
#endif /* BCMPCIE && DHDTCPACK_SUPPRESS */
#if defined(DHD_LB_RXP)
                                DHD_PERIM_UNLOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
                                netif_receive_skb(skb);
                                DHD_PERIM_LOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
#else /* !defined(DHD_LB_RXP) */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
                                DHD_PERIM_UNLOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
                                netif_rx_ni(skb);
                                DHD_PERIM_LOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
#else
                                ulong flags;
                                DHD_PERIM_UNLOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
                                netif_rx(skb);
                                DHD_PERIM_LOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
                                local_irq_save(flags);
                                RAISE_RX_SOFTIRQ();
                                local_irq_restore(flags);
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0) */
#endif /* !defined(DHD_LB_RXP) */
                        }
                }
        }

        if (dhd->rxthread_enabled && skbhead)
                dhd_sched_rxf(dhdp, skbhead);

        DHD_OS_WAKE_LOCK_RX_TIMEOUT_ENABLE(dhdp, tout_rx);
        DHD_OS_WAKE_LOCK_CTRL_TIMEOUT_ENABLE(dhdp, tout_ctrl);
}

void
dhd_event(struct dhd_info *dhd, char *evpkt, int evlen, int ifidx)
{
        /* Linux version has nothing to do */
        return;
}

void
dhd_txcomplete(dhd_pub_t *dhdp, void *txp, bool success)
{
        dhd_info_t *dhd = (dhd_info_t *)(dhdp->info);
        struct ether_header *eh;
        uint16 type;

        dhd_prot_hdrpull(dhdp, NULL, txp, NULL, NULL);

        eh = (struct ether_header *)PKTDATA(dhdp->osh, txp);
        type  = ntoh16(eh->ether_type);

        if (type == ETHER_TYPE_802_1X) {
                atomic_dec(&dhd->pend_8021x_cnt);
        }

#ifdef PROP_TXSTATUS
        if (dhdp->wlfc_state && (dhdp->proptxstatus_mode != WLFC_FCMODE_NONE)) {
                dhd_if_t *ifp = dhd->iflist[DHD_PKTTAG_IF(PKTTAG(txp))];
                uint datalen  = PKTLEN(dhd->pub.osh, txp);
                if (ifp != NULL) {
                        if (success) {
                                dhd->pub.tx_packets++;
                                ifp->stats.tx_packets++;
                                ifp->stats.tx_bytes += datalen;
                        } else {
                                ifp->stats.tx_dropped++;
                        }
                }
        }
#endif // endif
}

static struct net_device_stats *
dhd_get_stats(struct net_device *net)
{
        dhd_info_t *dhd = DHD_DEV_INFO(net);
        dhd_if_t *ifp;

        DHD_TRACE(("%s: Enter\n", __FUNCTION__));

        if (!dhd) {
                DHD_ERROR(("%s : dhd is NULL\n", __FUNCTION__));
                goto error;
        }

        ifp = dhd_get_ifp_by_ndev(&dhd->pub, net);
        if (!ifp) {
                /* return empty stats */
                DHD_ERROR(("%s: BAD_IF\n", __FUNCTION__));
                goto error;
        }

        if (dhd->pub.up) {
                /* Use the protocol to get dongle stats */
                dhd_prot_dstats(&dhd->pub);
        }
        return &ifp->stats;

error:
        memset(&net->stats, 0, sizeof(net->stats));
        return &net->stats;
}

static int
dhd_watchdog_thread(void *data)
{
        tsk_ctl_t *tsk = (tsk_ctl_t *)data;
        dhd_info_t *dhd = (dhd_info_t *)tsk->parent;
        /* This thread doesn't need any user-level access,
         * so get rid of all our resources
         */
        if (dhd_watchdog_prio > 0) {
                struct sched_param param;
                param.sched_priority = (dhd_watchdog_prio < MAX_RT_PRIO)?
                        dhd_watchdog_prio:(MAX_RT_PRIO-1);
                setScheduler(current, SCHED_FIFO, &param);
        }

        while (1) {
                if (down_interruptible (&tsk->sema) == 0) {
                        unsigned long flags;
                        unsigned long jiffies_at_start = jiffies;
                        unsigned long time_lapse;
#ifdef BCMPCIE
                        DHD_OS_WD_WAKE_LOCK(&dhd->pub);
#endif /* BCMPCIE */

                        SMP_RD_BARRIER_DEPENDS();
                        if (tsk->terminated) {
#ifdef BCMPCIE
                                DHD_OS_WD_WAKE_UNLOCK(&dhd->pub);
#endif /* BCMPCIE */
                                break;
                        }

                        if (dhd->pub.dongle_reset == FALSE) {
                                DHD_TIMER(("%s:\n", __FUNCTION__));
                                dhd_bus_watchdog(&dhd->pub);

                                DHD_GENERAL_LOCK(&dhd->pub, flags);
                                /* Count the tick for reference */
                                dhd->pub.tickcnt++;
#ifdef DHD_L2_FILTER
                                dhd_l2_filter_watchdog(&dhd->pub);
#endif /* DHD_L2_FILTER */
                                time_lapse = jiffies - jiffies_at_start;

                                /* Reschedule the watchdog */
                                if (dhd->wd_timer_valid) {
                                        mod_timer(&dhd->timer,
                                            jiffies +
                                            msecs_to_jiffies(dhd_watchdog_ms) -
                                            min(msecs_to_jiffies(dhd_watchdog_ms), time_lapse));
                                }
                                DHD_GENERAL_UNLOCK(&dhd->pub, flags);
                        }
#ifdef BCMPCIE
                        DHD_OS_WD_WAKE_UNLOCK(&dhd->pub);
#endif /* BCMPCIE */
                } else {
                        break;
                }
        }

        complete_and_exit(&tsk->completed, 0);
}

static void dhd_watchdog(ulong data)
{
        dhd_info_t *dhd = (dhd_info_t *)data;
        unsigned long flags;

        if (dhd->pub.dongle_reset) {
                return;
        }

        if (dhd->thr_wdt_ctl.thr_pid >= 0) {
                up(&dhd->thr_wdt_ctl.sema);
                return;
        }

#ifdef BCMPCIE
        DHD_OS_WD_WAKE_LOCK(&dhd->pub);
#endif /* BCMPCIE */
        /* Call the bus module watchdog */
        dhd_bus_watchdog(&dhd->pub);

        DHD_GENERAL_LOCK(&dhd->pub, flags);
        /* Count the tick for reference */
        dhd->pub.tickcnt++;

#ifdef DHD_L2_FILTER
        dhd_l2_filter_watchdog(&dhd->pub);
#endif /* DHD_L2_FILTER */
        /* Reschedule the watchdog */
        if (dhd->wd_timer_valid)
                mod_timer(&dhd->timer, jiffies + msecs_to_jiffies(dhd_watchdog_ms));
        DHD_GENERAL_UNLOCK(&dhd->pub, flags);
#ifdef BCMPCIE
        DHD_OS_WD_WAKE_UNLOCK(&dhd->pub);
#endif /* BCMPCIE */
}

#ifdef DHD_PCIE_RUNTIMEPM
static int
dhd_rpm_state_thread(void *data)
{
        tsk_ctl_t *tsk = (tsk_ctl_t *)data;
        dhd_info_t *dhd = (dhd_info_t *)tsk->parent;

        while (1) {
                if (down_interruptible (&tsk->sema) == 0) {
                        unsigned long flags;
                        unsigned long jiffies_at_start = jiffies;
                        unsigned long time_lapse;

                        SMP_RD_BARRIER_DEPENDS();
                        if (tsk->terminated) {
                                break;
                        }

                        if (dhd->pub.dongle_reset == FALSE) {
                                DHD_TIMER(("%s:\n", __FUNCTION__));
                                if (dhd->pub.up) {
                                        dhd_runtimepm_state(&dhd->pub);
                                }

                                DHD_GENERAL_LOCK(&dhd->pub, flags);
                                time_lapse = jiffies - jiffies_at_start;

                                /* Reschedule the watchdog */
                                if (dhd->rpm_timer_valid) {
                                        mod_timer(&dhd->rpm_timer,
                                                jiffies +
                                                msecs_to_jiffies(dhd_runtimepm_ms) -
                                                min(msecs_to_jiffies(dhd_runtimepm_ms),
                                                        time_lapse));
                                }
                                DHD_GENERAL_UNLOCK(&dhd->pub, flags);
                        }
                } else {
                        break;
                }
        }

        complete_and_exit(&tsk->completed, 0);
}

static void dhd_runtimepm(ulong data)
{
        dhd_info_t *dhd = (dhd_info_t *)data;

        if (dhd->pub.dongle_reset) {
                return;
        }

        if (dhd->thr_rpm_ctl.thr_pid >= 0) {
                up(&dhd->thr_rpm_ctl.sema);
                return;
        }
}

void dhd_runtime_pm_disable(dhd_pub_t *dhdp)
{
        dhd_os_runtimepm_timer(dhdp, 0);
        dhdpcie_runtime_bus_wake(dhdp, TRUE, __builtin_return_address(0));
        DHD_ERROR(("DHD Runtime PM Disabled \n"));
}

void dhd_runtime_pm_enable(dhd_pub_t *dhdp)
{
        if (dhd_get_idletime(dhdp)) {
                dhd_os_runtimepm_timer(dhdp, dhd_runtimepm_ms);
                DHD_ERROR(("DHD Runtime PM Enabled \n"));
        }
}

#endif /* DHD_PCIE_RUNTIMEPM */

#ifdef ENABLE_ADAPTIVE_SCHED
static void
dhd_sched_policy(int prio)
{
        struct sched_param param;
        if (cpufreq_quick_get(0) <= CUSTOM_CPUFREQ_THRESH) {
                param.sched_priority = 0;
                setScheduler(current, SCHED_NORMAL, &param);
        } else {
                if (get_scheduler_policy(current) != SCHED_FIFO) {
                        param.sched_priority = (prio < MAX_RT_PRIO)? prio : (MAX_RT_PRIO-1);
                        setScheduler(current, SCHED_FIFO, &param);
                }
        }
}
#endif /* ENABLE_ADAPTIVE_SCHED */
#ifdef DEBUG_CPU_FREQ
static int dhd_cpufreq_notifier(struct notifier_block *nb, unsigned long val, void *data)
{
        dhd_info_t *dhd = container_of(nb, struct dhd_info, freq_trans);
        struct cpufreq_freqs *freq = data;
        if (dhd) {
                if (!dhd->new_freq)
                        goto exit;
                if (val == CPUFREQ_POSTCHANGE) {
                        DHD_ERROR(("cpu freq is changed to %u kHZ on CPU %d\n",
                                freq->new, freq->cpu));
                        *per_cpu_ptr(dhd->new_freq, freq->cpu) = freq->new;
                }
        }
exit:
        return 0;
}
#endif /* DEBUG_CPU_FREQ */
static int
dhd_dpc_thread(void *data)
{
#if defined(ARGOS_CPU_SCHEDULER) && !defined(DHD_LB_IRQSET) && \
        !defined(CONFIG_SOC_EXYNOS7870)
        int ret = 0;
        unsigned long flags;
#endif /* ARGOS_CPU_SCHEDULER && !DHD_LB_IRQSET && !CONFIG_SOC_EXYNOS7870 */
        tsk_ctl_t *tsk = (tsk_ctl_t *)data;
        dhd_info_t *dhd = (dhd_info_t *)tsk->parent;

        /* This thread doesn't need any user-level access,
         * so get rid of all our resources
         */
        if (dhd_dpc_prio > 0)
        {
                struct sched_param param;
                param.sched_priority = (dhd_dpc_prio < MAX_RT_PRIO)?dhd_dpc_prio:(MAX_RT_PRIO-1);
                setScheduler(current, SCHED_FIFO, &param);
        }

#if defined(ARGOS_CPU_SCHEDULER) && !defined(DHD_LB_IRQSET) && \
        !defined(CONFIG_SOC_EXYNOS7870)
        if (!zalloc_cpumask_var(&dhd->pub.default_cpu_mask, GFP_KERNEL)) {
                DHD_ERROR(("dpc_thread, zalloc_cpumask_var error\n"));
                dhd->pub.affinity_isdpc = FALSE;
        } else {
                if (!zalloc_cpumask_var(&dhd->pub.dpc_affinity_cpu_mask, GFP_KERNEL)) {
                        DHD_ERROR(("dpc_thread, dpc_affinity_cpu_mask  error\n"));
                        free_cpumask_var(dhd->pub.default_cpu_mask);
                        dhd->pub.affinity_isdpc = FALSE;
                } else {
                        cpumask_copy(dhd->pub.default_cpu_mask, &hmp_slow_cpu_mask);
                        cpumask_or(dhd->pub.dpc_affinity_cpu_mask,
                                dhd->pub.dpc_affinity_cpu_mask, cpumask_of(DPC_CPUCORE));

                        DHD_GENERAL_LOCK(&dhd->pub, flags);
                        if ((ret = argos_task_affinity_setup_label(current, "WIFI",
                                dhd->pub.dpc_affinity_cpu_mask,
                                dhd->pub.default_cpu_mask)) < 0) {
                                DHD_ERROR(("Failed to add CPU affinity(dpc) error=%d\n",
                                        ret));
                                free_cpumask_var(dhd->pub.default_cpu_mask);
                                free_cpumask_var(dhd->pub.dpc_affinity_cpu_mask);
                                dhd->pub.affinity_isdpc = FALSE;
                        } else {
                                unsigned int irq = -1;
#ifdef BCMPCIE
                                if (dhdpcie_get_pcieirq(dhd->pub.bus, &irq)) {
                                        DHD_ERROR(("%s : Can't get interrupt number\n",
                                                __FUNCTION__));
                                }
#endif /* BCMPCIE */
#ifdef BCMSDIO
                                wifi_adapter_info_t *adapter = dhd->adapter;
                                irq = adapter->irq_num;
#endif /* BCMSDIO */
                                DHD_ERROR(("Argos set Completed : dpcthread\n"));
                                set_irq_cpucore(irq, dhd->pub.default_cpu_mask,
                                        dhd->pub.dpc_affinity_cpu_mask);
                                dhd->pub.affinity_isdpc = TRUE;
                        }
                        DHD_GENERAL_UNLOCK(&dhd->pub, flags);
                }
        }
#else /* ARGOS_CPU_SCHEDULER */
#ifdef CUSTOM_DPC_CPUCORE
        set_cpus_allowed_ptr(current, cpumask_of(CUSTOM_DPC_CPUCORE));
#endif // endif
#ifdef CUSTOM_SET_CPUCORE
        dhd->pub.current_dpc = current;
#endif /* CUSTOM_SET_CPUCORE */
#endif /* ARGOS_CPU_SCHEDULER && !DHD_LB_IRQSET && !CONFIG_SOC_EXYNOS7870 */
        /* Run until signal received */
        while (1) {
                if (!binary_sema_down(tsk)) {
#ifdef ENABLE_ADAPTIVE_SCHED
                        dhd_sched_policy(dhd_dpc_prio);
#endif /* ENABLE_ADAPTIVE_SCHED */
                        SMP_RD_BARRIER_DEPENDS();
                        if (tsk->terminated) {
                                break;
                        }

                        /* Call bus dpc unless it indicated down (then clean stop) */
                        if (dhd->pub.busstate != DHD_BUS_DOWN) {
#ifdef DEBUG_DPC_THREAD_WATCHDOG
                                int resched_cnt = 0;
#endif /* DEBUG_DPC_THREAD_WATCHDOG */
                                dhd_os_wd_timer_extend(&dhd->pub, TRUE);
                                while (dhd_bus_dpc(dhd->pub.bus)) {
                                        /* process all data */
#ifdef DEBUG_DPC_THREAD_WATCHDOG
                                        resched_cnt++;
                                        if (resched_cnt > MAX_RESCHED_CNT) {
                                                DHD_INFO(("%s Calling msleep to"
                                                        "let other processes run. \n",
                                                        __FUNCTION__));
                                                dhd->pub.dhd_bug_on = true;
                                                resched_cnt = 0;
                                                OSL_SLEEP(1);
                                        }
#endif /* DEBUG_DPC_THREAD_WATCHDOG */
                                }
                                dhd_os_wd_timer_extend(&dhd->pub, FALSE);
                                DHD_OS_WAKE_UNLOCK(&dhd->pub);
                        } else {
                                if (dhd->pub.up)
                                        dhd_bus_stop(dhd->pub.bus, TRUE);
                                DHD_OS_WAKE_UNLOCK(&dhd->pub);
                        }
                } else {
                        break;
                }
        }
#ifdef ARGOS_CPU_SCHEDULER
        if (dhd->pub.affinity_isdpc == TRUE) {
                free_cpumask_var(dhd->pub.default_cpu_mask);
                free_cpumask_var(dhd->pub.dpc_affinity_cpu_mask);
                dhd->pub.affinity_isdpc = FALSE;
        }
#endif /* ARGOS_CPU_SCHEDULER */
        complete_and_exit(&tsk->completed, 0);
}

static int
dhd_rxf_thread(void *data)
{
        tsk_ctl_t *tsk = (tsk_ctl_t *)data;
        dhd_info_t *dhd = (dhd_info_t *)tsk->parent;
#if defined(ARGOS_CPU_SCHEDULER) && !defined(DHD_LB_IRQSET) && \
        !defined(CONFIG_SOC_EXYNOS7870)
        int ret = 0;
        unsigned long flags;
#endif /* ARGOS_CPU_SCHEDULER && !DHD_LB_IRQSET && CONFIG_SOC_EXYNOS7870 */
#if defined(WAIT_DEQUEUE)
#define RXF_WATCHDOG_TIME 250 /* BARK_TIME(1000) /  */
        ulong watchdogTime = OSL_SYSUPTIME(); /* msec */
#endif // endif
        dhd_pub_t *pub = &dhd->pub;

        /* This thread doesn't need any user-level access,
         * so get rid of all our resources
         */
        if (dhd_rxf_prio > 0)
        {
                struct sched_param param;
                param.sched_priority = (dhd_rxf_prio < MAX_RT_PRIO)?dhd_rxf_prio:(MAX_RT_PRIO-1);
                setScheduler(current, SCHED_FIFO, &param);
        }

#if defined(ARGOS_CPU_SCHEDULER) && !defined(DHD_LB_IRQSET) && \
        !defined(CONFIG_SOC_EXYNOS7870)
        if (!zalloc_cpumask_var(&dhd->pub.rxf_affinity_cpu_mask, GFP_KERNEL)) {
                DHD_ERROR(("rxthread zalloc_cpumask_var error\n"));
                dhd->pub.affinity_isrxf = FALSE;
        } else {
                cpumask_or(dhd->pub.rxf_affinity_cpu_mask, dhd->pub.rxf_affinity_cpu_mask,
                        cpumask_of(RXF_CPUCORE));

                DHD_GENERAL_LOCK(&dhd->pub, flags);
                if ((ret = argos_task_affinity_setup_label(current, "WIFI",
                        dhd->pub.rxf_affinity_cpu_mask, dhd->pub.default_cpu_mask)) < 0) {
                        DHD_ERROR(("Failed to add CPU affinity(rxf) error=%d\n", ret));
                        dhd->pub.affinity_isrxf = FALSE;
                        free_cpumask_var(dhd->pub.rxf_affinity_cpu_mask);
                } else {
                        DHD_ERROR(("RXthread affinity completed\n"));
                        dhd->pub.affinity_isrxf = TRUE;
                }
                DHD_GENERAL_UNLOCK(&dhd->pub, flags);
        }
#else /* ARGOS_CPU_SCHEDULER */
#ifdef CUSTOM_SET_CPUCORE
        dhd->pub.current_rxf = current;
#endif /* CUSTOM_SET_CPUCORE */
#endif /* ARGOS_CPU_SCHEDULER && !DHD_LB_IRQSET && !CONFIG_SOC_EXYNOS7870 */
        /* Run until signal received */
        while (1) {
                if (down_interruptible(&tsk->sema) == 0) {
                        void *skb;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 0)
                        ulong flags;
#endif // endif
#ifdef ENABLE_ADAPTIVE_SCHED
                        dhd_sched_policy(dhd_rxf_prio);
#endif /* ENABLE_ADAPTIVE_SCHED */

                        SMP_RD_BARRIER_DEPENDS();

                        if (tsk->terminated) {
                                break;
                        }
                        skb = dhd_rxf_dequeue(pub);

                        if (skb == NULL) {
                                continue;
                        }
                        while (skb) {
                                void *skbnext = PKTNEXT(pub->osh, skb);
                                PKTSETNEXT(pub->osh, skb, NULL);
                                bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE,
                                        __FUNCTION__, __LINE__);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
                                netif_rx_ni(skb);
#else
                                netif_rx(skb);
                                local_irq_save(flags);
                                RAISE_RX_SOFTIRQ();
                                local_irq_restore(flags);

#endif // endif
                                skb = skbnext;
                        }
#if defined(WAIT_DEQUEUE)
                        if (OSL_SYSUPTIME() - watchdogTime > RXF_WATCHDOG_TIME) {
                                OSL_SLEEP(1);
                                watchdogTime = OSL_SYSUPTIME();
                        }
#endif // endif

                        DHD_OS_WAKE_UNLOCK(pub);
                } else {
                        break;
                }
        }
#ifdef ARGOS_CPU_SCHEDULER
        if (dhd->pub.affinity_isrxf == TRUE) {
                free_cpumask_var(dhd->pub.rxf_affinity_cpu_mask);
                dhd->pub.affinity_isrxf = FALSE;
        }
#endif /* ARGOS_CPU_SCHEDULER */
        complete_and_exit(&tsk->completed, 0);
}

#ifdef BCMPCIE
void dhd_dpc_enable(dhd_pub_t *dhdp)
{
#if defined(DHD_LB_RXP) || defined(DHD_LB_TXP)
        dhd_info_t *dhd;

        if (!dhdp || !dhdp->info)
                return;
        dhd = dhdp->info;
#endif /* DHD_LB_RXP || DHD_LB_TXP */

#ifdef DHD_LB_RXP
        __skb_queue_head_init(&dhd->rx_pend_queue);
#endif /* DHD_LB_RXP */

#ifdef DHD_LB_TXP
        skb_queue_head_init(&dhd->tx_pend_queue);
#endif /* DHD_LB_TXP */
}
#endif /* BCMPCIE */

#ifdef BCMPCIE
void
dhd_dpc_kill(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd;

        if (!dhdp) {
                return;
        }

        dhd = dhdp->info;

        if (!dhd) {
                return;
        }

        if (dhd->thr_dpc_ctl.thr_pid < 0) {
                tasklet_kill(&dhd->tasklet);
                DHD_ERROR(("%s: tasklet disabled\n", __FUNCTION__));
        }

#ifdef DHD_LB
#ifdef DHD_LB_RXP
        cancel_work_sync(&dhd->rx_napi_dispatcher_work);
        __skb_queue_purge(&dhd->rx_pend_queue);
#endif /* DHD_LB_RXP */
#ifdef DHD_LB_TXP
        cancel_work_sync(&dhd->tx_dispatcher_work);
        skb_queue_purge(&dhd->tx_pend_queue);
#endif /* DHD_LB_TXP */

        /* Kill the Load Balancing Tasklets */
#if defined(DHD_LB_TXC)
        tasklet_kill(&dhd->tx_compl_tasklet);
#endif /* DHD_LB_TXC */
#if defined(DHD_LB_RXC)
        tasklet_kill(&dhd->rx_compl_tasklet);
#endif /* DHD_LB_RXC */
#if defined(DHD_LB_TXP)
        tasklet_kill(&dhd->tx_tasklet);
#endif /* DHD_LB_TXP */
#endif /* DHD_LB */
}

void
dhd_dpc_tasklet_kill(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd;

        if (!dhdp) {
                return;
        }

        dhd = dhdp->info;

        if (!dhd) {
                return;
        }

        if (dhd->thr_dpc_ctl.thr_pid < 0) {
                tasklet_kill(&dhd->tasklet);
        }
}
#endif /* BCMPCIE */

static void
dhd_dpc(ulong data)
{
        dhd_info_t *dhd;

        dhd = (dhd_info_t *)data;

        /* this (tasklet) can be scheduled in dhd_sched_dpc[dhd_linux.c]
         * down below , wake lock is set,
         * the tasklet is initialized in dhd_attach()
         */
        /* Call bus dpc unless it indicated down (then clean stop) */
        if (dhd->pub.busstate != DHD_BUS_DOWN) {
#if defined(DHD_LB_STATS) && defined(PCIE_FULL_DONGLE)
                DHD_LB_STATS_INCR(dhd->dhd_dpc_cnt);
#endif /* DHD_LB_STATS && PCIE_FULL_DONGLE */
                if (dhd_bus_dpc(dhd->pub.bus)) {
                        tasklet_schedule(&dhd->tasklet);
                }
        } else {
                dhd_bus_stop(dhd->pub.bus, TRUE);
        }
}

void
dhd_sched_dpc(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd = (dhd_info_t *)dhdp->info;

        if (dhd->thr_dpc_ctl.thr_pid >= 0) {
                DHD_OS_WAKE_LOCK(dhdp);
                /* If the semaphore does not get up,
                * wake unlock should be done here
                */
                if (!binary_sema_up(&dhd->thr_dpc_ctl)) {
                        DHD_OS_WAKE_UNLOCK(dhdp);
                }
                return;
        } else {
                dhd_bus_set_dpc_sched_time(dhdp);
                tasklet_schedule(&dhd->tasklet);
        }
}

static void
dhd_sched_rxf(dhd_pub_t *dhdp, void *skb)
{
        dhd_info_t *dhd = (dhd_info_t *)dhdp->info;

        DHD_OS_WAKE_LOCK(dhdp);

        DHD_TRACE(("dhd_sched_rxf: Enter\n"));
        do {
                if (dhd_rxf_enqueue(dhdp, skb) == BCME_OK)
                        break;
        } while (1);
        if (dhd->thr_rxf_ctl.thr_pid >= 0) {
                up(&dhd->thr_rxf_ctl.sema);
        }
        return;
}

#if defined(BCM_DNGL_EMBEDIMAGE) || defined(BCM_REQUEST_FW)
#endif /* defined(BCM_DNGL_EMBEDIMAGE) || defined(BCM_REQUEST_FW) */

#ifdef TOE
/* Retrieve current toe component enables, which are kept as a bitmap in toe_ol iovar */
static int
dhd_toe_get(dhd_info_t *dhd, int ifidx, uint32 *toe_ol)
{
        char buf[32];
        int ret;

        ret = dhd_iovar(&dhd->pub, ifidx, "toe_ol", NULL, 0, (char *)&buf, sizeof(buf), FALSE);

        if (ret < 0) {
                if (ret == -EIO) {
                        DHD_ERROR(("%s: toe not supported by device\n", dhd_ifname(&dhd->pub,
                                ifidx)));
                        return -EOPNOTSUPP;
                }

                DHD_INFO(("%s: could not get toe_ol: ret=%d\n", dhd_ifname(&dhd->pub, ifidx), ret));
                return ret;
        }

        memcpy(toe_ol, buf, sizeof(uint32));
        return 0;
}

/* Set current toe component enables in toe_ol iovar, and set toe global enable iovar */
static int
dhd_toe_set(dhd_info_t *dhd, int ifidx, uint32 toe_ol)
{
        int toe, ret;

        /* Set toe_ol as requested */
        ret = dhd_iovar(&dhd->pub, ifidx, "toe_ol", (char *)&toe_ol, sizeof(toe_ol), NULL, 0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s: could not set toe_ol: ret=%d\n",
                        dhd_ifname(&dhd->pub, ifidx), ret));
                return ret;
        }

        /* Enable toe globally only if any components are enabled. */
        toe = (toe_ol != 0);
        ret = dhd_iovar(&dhd->pub, ifidx, "toe", (char *)&toe, sizeof(toe), NULL, 0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s: could not set toe: ret=%d\n", dhd_ifname(&dhd->pub, ifidx), ret));
                return ret;
        }

        return 0;
}
#endif /* TOE */

#if defined(WL_CFG80211) && defined(NUM_SCB_MAX_PROBE)
void dhd_set_scb_probe(dhd_pub_t *dhd)
{
        wl_scb_probe_t scb_probe;
        char iovbuf[WL_EVENTING_MASK_LEN + sizeof(wl_scb_probe_t)];
        int ret;

        if (dhd->op_mode & DHD_FLAG_HOSTAP_MODE) {
                return;
        }

        ret = dhd_iovar(dhd, 0, "scb_probe", NULL, 0, iovbuf, sizeof(iovbuf), FALSE);
        if (ret < 0) {
                DHD_ERROR(("%s: GET max_scb_probe failed\n", __FUNCTION__));
        }

        memcpy(&scb_probe, iovbuf, sizeof(wl_scb_probe_t));

        scb_probe.scb_max_probe = NUM_SCB_MAX_PROBE;

        ret = dhd_iovar(dhd, 0, "scb_probe", (char *)&scb_probe, sizeof(wl_scb_probe_t), NULL, 0,
                        TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s: max_scb_probe setting failed\n", __FUNCTION__));
                return;
        }
}
#endif /* WL_CFG80211 && NUM_SCB_MAX_PROBE */

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24)
static void
dhd_ethtool_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info)
{
        dhd_info_t *dhd = DHD_DEV_INFO(net);

        snprintf(info->driver, sizeof(info->driver), "wl");
        snprintf(info->version, sizeof(info->version), "%lu", dhd->pub.drv_version);
}

struct ethtool_ops dhd_ethtool_ops = {
        .get_drvinfo = dhd_ethtool_get_drvinfo
};
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24) */

#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2)
static int
dhd_ethtool(dhd_info_t *dhd, void *uaddr)
{
        struct ethtool_drvinfo info;
        char drvname[sizeof(info.driver)];
        uint32 cmd;
#ifdef TOE
        struct ethtool_value edata;
        uint32 toe_cmpnt, csum_dir;
        int ret;
#endif // endif

        DHD_TRACE(("%s: Enter\n", __FUNCTION__));

        /* all ethtool calls start with a cmd word */
        if (copy_from_user(&cmd, uaddr, sizeof (uint32)))
                return -EFAULT;

        switch (cmd) {
        case ETHTOOL_GDRVINFO:
                /* Copy out any request driver name */
                if (copy_from_user(&info, uaddr, sizeof(info)))
                        return -EFAULT;
                strncpy(drvname, info.driver, sizeof(info.driver));
                drvname[sizeof(info.driver)-1] = '\0';

                /* clear struct for return */
                memset(&info, 0, sizeof(info));
                info.cmd = cmd;

                /* if dhd requested, identify ourselves */
                if (strcmp(drvname, "?dhd") == 0) {
                        snprintf(info.driver, sizeof(info.driver), "dhd");
                        strncpy(info.version, EPI_VERSION_STR, sizeof(info.version) - 1);
                        info.version[sizeof(info.version) - 1] = '\0';
                }

                /* otherwise, require dongle to be up */
                else if (!dhd->pub.up) {
                        DHD_ERROR(("%s: dongle is not up\n", __FUNCTION__));
                        return -ENODEV;
                }

                /* finally, report dongle driver type */
                else if (dhd->pub.iswl)
                        snprintf(info.driver, sizeof(info.driver), "wl");
                else
                        snprintf(info.driver, sizeof(info.driver), "xx");

                snprintf(info.version, sizeof(info.version), "%lu", dhd->pub.drv_version);
                if (copy_to_user(uaddr, &info, sizeof(info)))
                        return -EFAULT;
                DHD_CTL(("%s: given %*s, returning %s\n", __FUNCTION__,
                         (int)sizeof(drvname), drvname, info.driver));
                break;

#ifdef TOE
        /* Get toe offload components from dongle */
        case ETHTOOL_GRXCSUM:
        case ETHTOOL_GTXCSUM:
                if ((ret = dhd_toe_get(dhd, 0, &toe_cmpnt)) < 0)
                        return ret;

                csum_dir = (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;

                edata.cmd = cmd;
                edata.data = (toe_cmpnt & csum_dir) ? 1 : 0;

                if (copy_to_user(uaddr, &edata, sizeof(edata)))
                        return -EFAULT;
                break;

        /* Set toe offload components in dongle */
        case ETHTOOL_SRXCSUM:
        case ETHTOOL_STXCSUM:
                if (copy_from_user(&edata, uaddr, sizeof(edata)))
                        return -EFAULT;

                /* Read the current settings, update and write back */
                if ((ret = dhd_toe_get(dhd, 0, &toe_cmpnt)) < 0)
                        return ret;

                csum_dir = (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;

                if (edata.data != 0)
                        toe_cmpnt |= csum_dir;
                else
                        toe_cmpnt &= ~csum_dir;

                if ((ret = dhd_toe_set(dhd, 0, toe_cmpnt)) < 0)
                        return ret;

                /* If setting TX checksum mode, tell Linux the new mode */
                if (cmd == ETHTOOL_STXCSUM) {
                        if (edata.data)
                                dhd->iflist[0]->net->features |= NETIF_F_IP_CSUM;
                        else
                                dhd->iflist[0]->net->features &= ~NETIF_F_IP_CSUM;
                }

                break;
#endif /* TOE */

        default:
                return -EOPNOTSUPP;
        }

        return 0;
}
#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2) */

static bool dhd_check_hang(struct net_device *net, dhd_pub_t *dhdp, int error)
{
        if (!dhdp) {
                DHD_ERROR(("%s: dhdp is NULL\n", __FUNCTION__));
                return FALSE;
        }

        if (!dhdp->up)
                return FALSE;

#if !defined(BCMPCIE)
        if (dhdp->info->thr_dpc_ctl.thr_pid < 0) {
                DHD_ERROR(("%s : skipped due to negative pid - unloading?\n", __FUNCTION__));
                return FALSE;
        }
#endif // endif

        if ((error == -ETIMEDOUT) || (error == -EREMOTEIO) ||
                ((dhdp->busstate == DHD_BUS_DOWN) && (!dhdp->dongle_reset))) {
#ifdef BCMPCIE
                DHD_ERROR(("%s: Event HANG send up due to  re=%d te=%d d3acke=%d e=%d s=%d\n",
                        __FUNCTION__, dhdp->rxcnt_timeout, dhdp->txcnt_timeout,
                        dhdp->d3ackcnt_timeout, error, dhdp->busstate));
#else
                DHD_ERROR(("%s: Event HANG send up due to  re=%d te=%d e=%d s=%d\n", __FUNCTION__,
                        dhdp->rxcnt_timeout, dhdp->txcnt_timeout, error, dhdp->busstate));
#endif /* BCMPCIE */
                if (dhdp->hang_reason == 0) {
                        if (dhdp->dongle_trap_occured) {
                                dhdp->hang_reason = HANG_REASON_DONGLE_TRAP;
#ifdef BCMPCIE
                        } else if (dhdp->d3ackcnt_timeout) {
                                dhdp->hang_reason = dhdp->is_sched_error ?
                                        HANG_REASON_D3_ACK_TIMEOUT_SCHED_ERROR :
                                        HANG_REASON_D3_ACK_TIMEOUT;
#endif /* BCMPCIE */
                        } else {
                                dhdp->hang_reason = dhdp->is_sched_error ?
                                        HANG_REASON_IOCTL_RESP_TIMEOUT_SCHED_ERROR :
                                        HANG_REASON_IOCTL_RESP_TIMEOUT;
                        }
                }
                net_os_send_hang_message(net);
                return TRUE;
        }
        return FALSE;
}

#ifdef WL_MONITOR
bool
dhd_monitor_enabled(dhd_pub_t *dhd, int ifidx)
{
        return (dhd->info->monitor_type != 0);
}

void
dhd_rx_mon_pkt(dhd_pub_t *dhdp, host_rxbuf_cmpl_t* msg, void *pkt, int ifidx)
{
        dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
        {
                uint8 amsdu_flag = (msg->flags & BCMPCIE_PKT_FLAGS_MONITOR_MASK) >>
                        BCMPCIE_PKT_FLAGS_MONITOR_SHIFT;
                switch (amsdu_flag) {
                        case BCMPCIE_PKT_FLAGS_MONITOR_NO_AMSDU:
                        default:
                                if (!dhd->monitor_skb) {
                                        if ((dhd->monitor_skb = PKTTONATIVE(dhdp->osh, pkt))
                                                == NULL)
                                                return;
                                }
                                if (dhd->monitor_type && dhd->monitor_dev)
                                        dhd->monitor_skb->dev = dhd->monitor_dev;
                                else {
                                        PKTFREE(dhdp->osh, pkt, FALSE);
                                        dhd->monitor_skb = NULL;
                                        return;
                                }
                                dhd->monitor_skb->protocol =
                                        eth_type_trans(dhd->monitor_skb, dhd->monitor_skb->dev);
                                dhd->monitor_len = 0;
                                break;

                        case BCMPCIE_PKT_FLAGS_MONITOR_FIRST_PKT:
                                if (!dhd->monitor_skb) {
                                        if ((dhd->monitor_skb = dev_alloc_skb(MAX_MON_PKT_SIZE))
                                                == NULL)
                                                return;
                                        dhd->monitor_len = 0;
                                }
                                if (dhd->monitor_type && dhd->monitor_dev)
                                        dhd->monitor_skb->dev = dhd->monitor_dev;
                                else {
                                        PKTFREE(dhdp->osh, pkt, FALSE);
                                        dev_kfree_skb(dhd->monitor_skb);
                                        return;
                                }
                                memcpy(PKTDATA(dhdp->osh, dhd->monitor_skb),
                                PKTDATA(dhdp->osh, pkt), PKTLEN(dhdp->osh, pkt));
                                dhd->monitor_len = PKTLEN(dhdp->osh, pkt);
                                PKTFREE(dhdp->osh, pkt, FALSE);
                                return;

                        case BCMPCIE_PKT_FLAGS_MONITOR_INTER_PKT:
                                memcpy(PKTDATA(dhdp->osh, dhd->monitor_skb) + dhd->monitor_len,
                                PKTDATA(dhdp->osh, pkt), PKTLEN(dhdp->osh, pkt));
                                dhd->monitor_len += PKTLEN(dhdp->osh, pkt);
                                PKTFREE(dhdp->osh, pkt, FALSE);
                                return;

                        case BCMPCIE_PKT_FLAGS_MONITOR_LAST_PKT:
                                memcpy(PKTDATA(dhdp->osh, dhd->monitor_skb) + dhd->monitor_len,
                                PKTDATA(dhdp->osh, pkt), PKTLEN(dhdp->osh, pkt));
                                dhd->monitor_len += PKTLEN(dhdp->osh, pkt);
                                PKTFREE(dhdp->osh, pkt, FALSE);
                                skb_put(dhd->monitor_skb, dhd->monitor_len);
                                dhd->monitor_skb->protocol =
                                        eth_type_trans(dhd->monitor_skb, dhd->monitor_skb->dev);
                                dhd->monitor_len = 0;
                                break;
                }
        }

        if (in_interrupt()) {
                bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE,
                        __FUNCTION__, __LINE__);
                DHD_PERIM_UNLOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
                netif_rx(dhd->monitor_skb);
                DHD_PERIM_LOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
        } else {
                /* If the receive is not processed inside an ISR,
                 * the softirqd must be woken explicitly to service
                 * the NET_RX_SOFTIRQ.  In 2.6 kernels, this is handled
                 * by netif_rx_ni(), but in earlier kernels, we need
                 * to do it manually.
                 */
                bcm_object_trace_opr(dhd->monitor_skb, BCM_OBJDBG_REMOVE,
                        __FUNCTION__, __LINE__);

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
                DHD_PERIM_UNLOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
                netif_rx_ni(dhd->monitor_skb);
                DHD_PERIM_LOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
#else
                ulong flags;
                DHD_PERIM_UNLOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
                netif_rx(dhd->monitor_skb);
                DHD_PERIM_LOCK_ALL((dhd->fwder_unit % FWDER_MAX_UNIT));
                local_irq_save(flags);
                RAISE_RX_SOFTIRQ();
                local_irq_restore(flags);
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0) */
        }

        dhd->monitor_skb = NULL;
}

typedef struct dhd_mon_dev_priv {
        struct net_device_stats stats;
} dhd_mon_dev_priv_t;

#define DHD_MON_DEV_PRIV_SIZE           (sizeof(dhd_mon_dev_priv_t))
#define DHD_MON_DEV_PRIV(dev)           ((dhd_mon_dev_priv_t *)DEV_PRIV(dev))
#define DHD_MON_DEV_STATS(dev)          (((dhd_mon_dev_priv_t *)DEV_PRIV(dev))->stats)

static int
dhd_monitor_start(struct sk_buff *skb, struct net_device *dev)
{
        PKTFREE(NULL, skb, FALSE);
        return 0;
}

#if defined(BT_OVER_SDIO)

void
dhdsdio_bus_usr_cnt_inc(dhd_pub_t *dhdp)
{
        dhdp->info->bus_user_count++;
}

void
dhdsdio_bus_usr_cnt_dec(dhd_pub_t *dhdp)
{
        dhdp->info->bus_user_count--;
}

/* Return values:
 * Success: Returns 0
 * Failure: Returns -1 or errono code
 */
int
dhd_bus_get(wlan_bt_handle_t handle, bus_owner_t owner)
{
        dhd_pub_t *dhdp = (dhd_pub_t *)handle;
        dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
        int ret = 0;

        mutex_lock(&dhd->bus_user_lock);
        ++dhd->bus_user_count;
        if (dhd->bus_user_count < 0) {
                DHD_ERROR(("%s(): bus_user_count is negative, which is invalid\n", __FUNCTION__));
                ret = -1;
                goto exit;
        }

        if (dhd->bus_user_count == 1) {

                dhd->pub.hang_was_sent = 0;

                /* First user, turn on WL_REG, start the bus */
                DHD_ERROR(("%s(): First user Turn On WL_REG & start the bus", __FUNCTION__));

                if (!wifi_platform_set_power(dhd->adapter, TRUE, WIFI_TURNON_DELAY)) {
                        /* Enable F1 */
                        ret = dhd_bus_resume(dhdp, 0);
                        if (ret) {
                                DHD_ERROR(("%s(): Failed to enable F1, err=%d\n",
                                        __FUNCTION__, ret));
                                goto exit;
                        }
                }

                dhd_update_fw_nv_path(dhd);
                /* update firmware and nvram path to sdio bus */
                dhd_bus_update_fw_nv_path(dhd->pub.bus,
                        dhd->fw_path, dhd->nv_path);
                /* download the firmware, Enable F2 */
                /* TODO: Should be done only in case of FW switch */
                ret = dhd_bus_devreset(dhdp, FALSE);
                dhd_bus_resume(dhdp, 1);
                if (!ret) {
                        if (dhd_sync_with_dongle(&dhd->pub) < 0) {
                                DHD_ERROR(("%s(): Sync with dongle failed!!\n", __FUNCTION__));
                                ret = -EFAULT;
                        }
                } else {
                        DHD_ERROR(("%s(): Failed to download, err=%d\n", __FUNCTION__, ret));
                }
        } else {
                DHD_ERROR(("%s(): BUS is already acquired, just increase the count %d \r\n",
                        __FUNCTION__, dhd->bus_user_count));
        }
exit:
        mutex_unlock(&dhd->bus_user_lock);
        return ret;
}
EXPORT_SYMBOL(dhd_bus_get);

/* Return values:
 * Success: Returns 0
 * Failure: Returns -1 or errono code
 */
int
dhd_bus_put(wlan_bt_handle_t handle, bus_owner_t owner)
{
        dhd_pub_t *dhdp = (dhd_pub_t *)handle;
        dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
        int ret = 0;
        BCM_REFERENCE(owner);

        mutex_lock(&dhd->bus_user_lock);
        --dhd->bus_user_count;
        if (dhd->bus_user_count < 0) {
                DHD_ERROR(("%s(): bus_user_count is negative, which is invalid\n", __FUNCTION__));
                dhd->bus_user_count = 0;
                ret = -1;
                goto exit;
        }

        if (dhd->bus_user_count == 0) {
                /* Last user, stop the bus and turn Off WL_REG */
                DHD_ERROR(("%s(): There are no owners left Trunf Off WL_REG & stop the bus \r\n",
                        __FUNCTION__));
#ifdef PROP_TXSTATUS
                if (dhd->pub.wlfc_enabled) {
                        dhd_wlfc_deinit(&dhd->pub);
                }
#endif /* PROP_TXSTATUS */
#ifdef PNO_SUPPORT
                if (dhd->pub.pno_state) {
                        dhd_pno_deinit(&dhd->pub);
                }
#endif /* PNO_SUPPORT */
#ifdef RTT_SUPPORT
                if (dhd->pub.rtt_state) {
                        dhd_rtt_deinit(&dhd->pub);
                }
#endif /* RTT_SUPPORT */
                ret = dhd_bus_devreset(dhdp, TRUE);
                if (!ret) {
                        dhd_bus_suspend(dhdp);
                        wifi_platform_set_power(dhd->adapter, FALSE, WIFI_TURNOFF_DELAY);
                }
        } else {
                DHD_ERROR(("%s(): Other owners using bus, decrease the count %d \r\n",
                        __FUNCTION__, dhd->bus_user_count));
        }
exit:
        mutex_unlock(&dhd->bus_user_lock);
        return ret;
}
EXPORT_SYMBOL(dhd_bus_put);

int
dhd_net_bus_get(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        return dhd_bus_get(&dhd->pub, WLAN_MODULE);
}

int
dhd_net_bus_put(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        return dhd_bus_put(&dhd->pub, WLAN_MODULE);
}

/*
 * Function to enable the Bus Clock
 * Returns BCME_OK on success and BCME_xxx on failure
 *
 * This function is not callable from non-sleepable context
 */
int dhd_bus_clk_enable(wlan_bt_handle_t handle, bus_owner_t owner)
{
        dhd_pub_t *dhdp = (dhd_pub_t *)handle;

        int ret;

        dhd_os_sdlock(dhdp);
        /*
         * The second argument is TRUE, that means, we expect
         * the function to "wait" until the clocks are really
         * available
         */
        ret = __dhdsdio_clk_enable(dhdp->bus, owner, TRUE);
        dhd_os_sdunlock(dhdp);

        return ret;
}
EXPORT_SYMBOL(dhd_bus_clk_enable);

/*
 * Function to disable the Bus Clock
 * Returns BCME_OK on success and BCME_xxx on failure
 *
 * This function is not callable from non-sleepable context
 */
int dhd_bus_clk_disable(wlan_bt_handle_t handle, bus_owner_t owner)
{
        dhd_pub_t *dhdp = (dhd_pub_t *)handle;

        int ret;

        dhd_os_sdlock(dhdp);
        /*
         * The second argument is TRUE, that means, we expect
         * the function to "wait" until the clocks are really
         * disabled
         */
        ret = __dhdsdio_clk_disable(dhdp->bus, owner, TRUE);
        dhd_os_sdunlock(dhdp);

        return ret;
}
EXPORT_SYMBOL(dhd_bus_clk_disable);

/*
 * Function to reset bt_use_count counter to zero.
 *
 * This function is not callable from non-sleepable context
 */
void dhd_bus_reset_bt_use_count(wlan_bt_handle_t handle)
{
        dhd_pub_t *dhdp = (dhd_pub_t *)handle;

        /* take the lock and reset bt use count */
        dhd_os_sdlock(dhdp);
        dhdsdio_reset_bt_use_count(dhdp->bus);
        dhd_os_sdunlock(dhdp);
}
EXPORT_SYMBOL(dhd_bus_reset_bt_use_count);

void dhd_bus_retry_hang_recovery(wlan_bt_handle_t handle)
{
        dhd_pub_t *dhdp = (dhd_pub_t *)handle;
        dhd_info_t *dhd = (dhd_info_t*)dhdp->info;

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
                dhdp->hang_was_sent = 0;

                dhd_os_send_hang_message(&dhd->pub);
#else
                DHD_ERROR(("%s: unsupported\n", __FUNCTION__));
#endif // endif
}
EXPORT_SYMBOL(dhd_bus_retry_hang_recovery);

#endif /* BT_OVER_SDIO */

static int
dhd_monitor_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
        return 0;
}

static struct net_device_stats*
dhd_monitor_get_stats(struct net_device *dev)
{
        return &DHD_MON_DEV_STATS(dev);
}

static const struct net_device_ops netdev_monitor_ops =
{
        .ndo_start_xmit = dhd_monitor_start,
        .ndo_get_stats = dhd_monitor_get_stats,
        .ndo_do_ioctl = dhd_monitor_ioctl
};

static void
dhd_add_monitor_if(dhd_info_t *dhd)
{
        struct net_device *dev;
        char *devname;
        uint32 scan_suppress = FALSE;
        int ret = BCME_OK;

        if (!dhd) {
                DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
                return;
        }

        if (dhd->monitor_dev) {
                DHD_ERROR(("%s: monitor i/f already exists", __FUNCTION__));
                return;
        }

        dev = alloc_etherdev(DHD_MON_DEV_PRIV_SIZE);
        if (!dev) {
                DHD_ERROR(("%s: alloc wlif failed\n", __FUNCTION__));
                return;
        }

        devname = "radiotap";

        snprintf(dev->name, sizeof(dev->name), "%s%u", devname, dhd->unit);

#ifndef ARPHRD_IEEE80211_PRISM  /* From Linux 2.4.18 */
#define ARPHRD_IEEE80211_PRISM 802
#endif // endif

#ifndef ARPHRD_IEEE80211_RADIOTAP
#define ARPHRD_IEEE80211_RADIOTAP       803 /* IEEE 802.11 + radiotap header */
#endif /* ARPHRD_IEEE80211_RADIOTAP */

        dev->type = ARPHRD_IEEE80211_RADIOTAP;

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31))
        dev->hard_start_xmit = dhd_monitor_start;
        dev->do_ioctl = dhd_monitor_ioctl;
        dev->get_stats = dhd_monitor_get_stats;
#else
        dev->netdev_ops = &netdev_monitor_ops;
#endif // endif

        if (register_netdevice(dev)) {
                DHD_ERROR(("%s, register_netdev failed for %s\n",
                        __FUNCTION__, dev->name));
                free_netdev(dev);
                return;
        }

        if (FW_SUPPORTED((&dhd->pub), monitor)) {
#ifdef DHD_PCIE_RUNTIMEPM
                /* Disable RuntimePM in monitor mode */
                DHD_DISABLE_RUNTIME_PM(&dhd->pub);
                DHD_ERROR(("%s : Disable RuntimePM in Monitor Mode\n", __FUNCTION__));
#endif /* DHD_PCIE_RUNTIME_PM */
                scan_suppress = TRUE;
                /* Set the SCAN SUPPRESS Flag in the firmware to disable scan in Monitor mode */
                ret = dhd_iovar(&dhd->pub, 0, "scansuppress", (char *)&scan_suppress,
                        sizeof(scan_suppress), NULL, 0, TRUE);
                if (ret < 0) {
                        DHD_ERROR(("%s: scansuppress set failed, ret=%d\n", __FUNCTION__, ret));
                }
        }

        dhd->monitor_dev = dev;
}

static void
dhd_del_monitor_if(dhd_info_t *dhd)
{

        if (!dhd) {
                DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
                return;
        }

        if (!dhd->monitor_dev) {
                DHD_ERROR(("%s: monitor i/f doesn't exist", __FUNCTION__));
                return;
        }

        if (dhd->monitor_dev) {
                if (dhd->monitor_dev->reg_state == NETREG_UNINITIALIZED) {
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 24))
                        MFREE(dhd->osh, dhd->monitor_dev->priv, DHD_MON_DEV_PRIV_SIZE);
                        MFREE(dhd->osh, dhd->monitor_dev, sizeof(struct net_device));
#else
                        free_netdev(dhd->monitor_dev);
#endif /* 2.6.24 */
                } else {
                        unregister_netdevice(dhd->monitor_dev);
                }
                dhd->monitor_dev = NULL;
        }
}

static void
dhd_set_monitor(dhd_pub_t *pub, int ifidx, int val)
{
        dhd_info_t *dhd = pub->info;

        DHD_TRACE(("%s: val %d\n", __FUNCTION__, val));

        dhd_net_if_lock_local(dhd);
        if (!val) {
                        /* Delete monitor */
                        dhd_del_monitor_if(dhd);
        } else {
                        /* Add monitor */
                        dhd_add_monitor_if(dhd);
        }
        dhd->monitor_type = val;
        dhd_net_if_unlock_local(dhd);
}
#endif /* WL_MONITOR */

int dhd_ioctl_process(dhd_pub_t *pub, int ifidx, dhd_ioctl_t *ioc, void *data_buf)
{
        int bcmerror = BCME_OK;
        int buflen = 0;
        struct net_device *net;

        net = dhd_idx2net(pub, ifidx);
        if (!net) {
                bcmerror = BCME_BADARG;
                /*
                 * The netdev pointer is bad means the DHD can't communicate
                 * to higher layers, so just return from here
                 */
                return bcmerror;
        }

        /* check for local dhd ioctl and handle it */
        if (ioc->driver == DHD_IOCTL_MAGIC) {
                /* This is a DHD IOVAR, truncate buflen to DHD_IOCTL_MAXLEN */
                if (data_buf)
                        buflen = MIN(ioc->len, DHD_IOCTL_MAXLEN);
                bcmerror = dhd_ioctl((void *)pub, ioc, data_buf, buflen);
                if (bcmerror)
                        pub->bcmerror = bcmerror;
                goto done;
        }

        /* This is a WL IOVAR, truncate buflen to WLC_IOCTL_MAXLEN */
        if (data_buf)
                buflen = MIN(ioc->len, WLC_IOCTL_MAXLEN);

        /* send to dongle (must be up, and wl). */
        if (pub->busstate == DHD_BUS_DOWN || pub->busstate == DHD_BUS_LOAD) {
                if ((!pub->dongle_trap_occured) && allow_delay_fwdl) {
                        int ret;
                        if (atomic_read(&exit_in_progress)) {
                                DHD_ERROR(("%s module exit in progress\n", __func__));
                                bcmerror = BCME_DONGLE_DOWN;
                                goto done;
                        }
                        ret = dhd_bus_start(pub);
                        if (ret != 0) {
                                DHD_ERROR(("%s: failed with code %d\n", __FUNCTION__, ret));
                                bcmerror = BCME_DONGLE_DOWN;
                                goto done;
                        }
                } else {
                        bcmerror = BCME_DONGLE_DOWN;
                        goto done;
                }
        }

        if (!pub->iswl) {
                bcmerror = BCME_DONGLE_DOWN;
                goto done;
        }

        /*
         * Flush the TX queue if required for proper message serialization:
         * Intercept WLC_SET_KEY IOCTL - serialize M4 send and set key IOCTL to
         * prevent M4 encryption and
         * intercept WLC_DISASSOC IOCTL - serialize WPS-DONE and WLC_DISASSOC IOCTL to
         * prevent disassoc frame being sent before WPS-DONE frame.
         */
        if (ioc->cmd == WLC_SET_KEY ||
            (ioc->cmd == WLC_SET_VAR && data_buf != NULL &&
             strncmp("wsec_key", data_buf, 9) == 0) ||
            (ioc->cmd == WLC_SET_VAR && data_buf != NULL &&
             strncmp("bsscfg:wsec_key", data_buf, 15) == 0) ||
            ioc->cmd == WLC_DISASSOC)
                dhd_wait_pend8021x(net);

        if ((ioc->cmd == WLC_SET_VAR || ioc->cmd == WLC_GET_VAR) &&
                data_buf != NULL && strncmp("rpc_", data_buf, 4) == 0) {
                bcmerror = BCME_UNSUPPORTED;
                goto done;
        }
        bcmerror = dhd_wl_ioctl(pub, ifidx, (wl_ioctl_t *)ioc, data_buf, buflen);

#ifdef WL_MONITOR
        /* Intercept monitor ioctl here, add/del monitor if */
        if (bcmerror == BCME_OK && ioc->cmd == WLC_SET_MONITOR) {
                int val = 0;
                if (data_buf != NULL && buflen != 0) {
                        if (buflen >= 4) {
                                val = *(int*)data_buf;
                        } else if (buflen >= 2) {
                                val = *(short*)data_buf;
                        } else {
                                val = *(char*)data_buf;
                        }
                }
                dhd_set_monitor(pub, ifidx, val);
        }
#endif /* WL_MONITOR */

done:
        dhd_check_hang(net, pub, bcmerror);

        return bcmerror;
}

/**
 * Called by the OS (optionally via a wrapper function).
 * @param net  Linux per dongle instance
 * @param ifr  Linux request structure
 * @param cmd  e.g. SIOCETHTOOL
 */
static int
dhd_ioctl_entry(struct net_device *net, struct ifreq *ifr, int cmd)
{
        dhd_info_t *dhd = DHD_DEV_INFO(net);
        dhd_ioctl_t ioc;
        int bcmerror = 0;
        int ifidx;
        int ret;
        void *local_buf = NULL;           /**< buffer in kernel space */
        void __user *ioc_buf_user = NULL; /**< buffer in user space */
        u16 buflen = 0;

        if (atomic_read(&exit_in_progress)) {
                DHD_ERROR(("%s module exit in progress\n", __func__));
                bcmerror = BCME_DONGLE_DOWN;
                return OSL_ERROR(bcmerror);
        }

        DHD_OS_WAKE_LOCK(&dhd->pub);
        DHD_PERIM_LOCK(&dhd->pub);

        /* Interface up check for built-in type */
        if (!dhd_download_fw_on_driverload && dhd->pub.up == FALSE) {
                DHD_TRACE(("%s: Interface is down \n", __FUNCTION__));
                DHD_PERIM_UNLOCK(&dhd->pub);
                DHD_OS_WAKE_UNLOCK(&dhd->pub);
                return OSL_ERROR(BCME_NOTUP);
        }

        ifidx = dhd_net2idx(dhd, net);
        DHD_TRACE(("%s: ifidx %d, cmd 0x%04x\n", __FUNCTION__, ifidx, cmd));

#if defined(WL_STATIC_IF)
        /* skip for static ndev when it is down */
        if (dhd_is_static_ndev(&dhd->pub, net) && !(net->flags & IFF_UP)) {
                DHD_PERIM_UNLOCK(&dhd->pub);
                DHD_OS_WAKE_UNLOCK(&dhd->pub);
                return -1;
        }
#endif /* WL_STATIC_iF */

        if (ifidx == DHD_BAD_IF) {
                DHD_ERROR(("%s: BAD IF\n", __FUNCTION__));
                DHD_PERIM_UNLOCK(&dhd->pub);
                DHD_OS_WAKE_UNLOCK(&dhd->pub);
                return -1;
        }

#if defined(WL_WIRELESS_EXT)
        /* linux wireless extensions */
        if ((cmd >= SIOCIWFIRST) && (cmd <= SIOCIWLAST)) {
                /* may recurse, do NOT lock */
                ret = wl_iw_ioctl(net, ifr, cmd);
                DHD_PERIM_UNLOCK(&dhd->pub);
                DHD_OS_WAKE_UNLOCK(&dhd->pub);
                return ret;
        }
#endif /* defined(WL_WIRELESS_EXT) */

#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2)
        if (cmd == SIOCETHTOOL) {
                ret = dhd_ethtool(dhd, (void*)ifr->ifr_data);
                DHD_PERIM_UNLOCK(&dhd->pub);
                DHD_OS_WAKE_UNLOCK(&dhd->pub);
                return ret;
        }
#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2) */

        if (cmd == SIOCDEVPRIVATE+1) {
                ret = wl_android_priv_cmd(net, ifr);
                dhd_check_hang(net, &dhd->pub, ret);
                DHD_PERIM_UNLOCK(&dhd->pub);
                DHD_OS_WAKE_UNLOCK(&dhd->pub);
                return ret;
        }

        if (cmd != SIOCDEVPRIVATE) {
                DHD_PERIM_UNLOCK(&dhd->pub);
                DHD_OS_WAKE_UNLOCK(&dhd->pub);
                return -EOPNOTSUPP;
        }

        memset(&ioc, 0, sizeof(ioc));

#ifdef CONFIG_COMPAT
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 6, 0))
        if (in_compat_syscall()) {
#else
        if (is_compat_task()) {
#endif /* LINUX_VER >= 4.6 */
                compat_wl_ioctl_t compat_ioc;
                if (copy_from_user(&compat_ioc, ifr->ifr_data, sizeof(compat_wl_ioctl_t))) {
                        bcmerror = BCME_BADADDR;
                        goto done;
                }
                ioc.cmd = compat_ioc.cmd;
                ioc.buf = compat_ptr(compat_ioc.buf);
                ioc.len = compat_ioc.len;
                ioc.set = compat_ioc.set;
                ioc.used = compat_ioc.used;
                ioc.needed = compat_ioc.needed;
                /* To differentiate between wl and dhd read 4 more byes */
                if ((copy_from_user(&ioc.driver, (char *)ifr->ifr_data + sizeof(compat_wl_ioctl_t),
                        sizeof(uint)) != 0)) {
                        bcmerror = BCME_BADADDR;
                        goto done;
                }
        } else
#endif /* CONFIG_COMPAT */
        {
                /* Copy the ioc control structure part of ioctl request */
                if (copy_from_user(&ioc, ifr->ifr_data, sizeof(wl_ioctl_t))) {
                        bcmerror = BCME_BADADDR;
                        goto done;
                }

                /* To differentiate between wl and dhd read 4 more byes */
                if ((copy_from_user(&ioc.driver, (char *)ifr->ifr_data + sizeof(wl_ioctl_t),
                        sizeof(uint)) != 0)) {
                        bcmerror = BCME_BADADDR;
                        goto done;
                }
        }

        if (!capable(CAP_NET_ADMIN)) {
                bcmerror = BCME_EPERM;
                goto done;
        }

        /* Take backup of ioc.buf and restore later */
        ioc_buf_user = ioc.buf;

        if (ioc.len > 0) {
                buflen = MIN(ioc.len, DHD_IOCTL_MAXLEN);
                if (!(local_buf = MALLOC(dhd->pub.osh, buflen+1))) {
                        bcmerror = BCME_NOMEM;
                        goto done;
                }

                DHD_PERIM_UNLOCK(&dhd->pub);
                if (copy_from_user(local_buf, ioc.buf, buflen)) {
                        DHD_PERIM_LOCK(&dhd->pub);
                        bcmerror = BCME_BADADDR;
                        goto done;
                }
                DHD_PERIM_LOCK(&dhd->pub);

                *((char *)local_buf + buflen) = '\0';

                /* For some platforms accessing userspace memory
                 * of ioc.buf is causing kernel panic, so to avoid that
                 * make ioc.buf pointing to kernel space memory local_buf
                 */
                ioc.buf = local_buf;
        }

        /* Skip all the non DHD iovars (wl iovars) after f/w hang */
        if (ioc.driver != DHD_IOCTL_MAGIC && dhd->pub.hang_was_sent) {
                DHD_TRACE(("%s: HANG was sent up earlier\n", __FUNCTION__));
                DHD_OS_WAKE_LOCK_CTRL_TIMEOUT_ENABLE(&dhd->pub, DHD_EVENT_TIMEOUT_MS);
                bcmerror = BCME_DONGLE_DOWN;
                goto done;
        }

        bcmerror = dhd_ioctl_process(&dhd->pub, ifidx, &ioc, local_buf);

        /* Restore back userspace pointer to ioc.buf */
        ioc.buf = ioc_buf_user;

        if (!bcmerror && buflen && local_buf && ioc.buf) {
                DHD_PERIM_UNLOCK(&dhd->pub);
                if (copy_to_user(ioc.buf, local_buf, buflen))
                        bcmerror = -EFAULT;
                DHD_PERIM_LOCK(&dhd->pub);
        }

done:
        if (local_buf)
                MFREE(dhd->pub.osh, local_buf, buflen+1);

        DHD_PERIM_UNLOCK(&dhd->pub);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);

        return OSL_ERROR(bcmerror);
}

#if defined(WL_CFG80211) && defined(SUPPORT_DEEP_SLEEP)
/* Flags to indicate if we distingish power off policy when
 * user set the memu "Keep Wi-Fi on during sleep" to "Never"
 */
int trigger_deep_sleep = 0;
#endif /* WL_CFG80211 && SUPPORT_DEEP_SLEEP */

#ifdef FIX_CPU_MIN_CLOCK
static int dhd_init_cpufreq_fix(dhd_info_t *dhd)
{
        if (dhd) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
                mutex_init(&dhd->cpufreq_fix);
#endif // endif
                dhd->cpufreq_fix_status = FALSE;
        }
        return 0;
}

static void dhd_fix_cpu_freq(dhd_info_t *dhd)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
        mutex_lock(&dhd->cpufreq_fix);
#endif // endif
        if (dhd && !dhd->cpufreq_fix_status) {
                pm_qos_add_request(&dhd->dhd_cpu_qos, PM_QOS_CPU_FREQ_MIN, 300000);
#ifdef FIX_BUS_MIN_CLOCK
                pm_qos_add_request(&dhd->dhd_bus_qos, PM_QOS_BUS_THROUGHPUT, 400000);
#endif /* FIX_BUS_MIN_CLOCK */
                DHD_ERROR(("pm_qos_add_requests called\n"));

                dhd->cpufreq_fix_status = TRUE;
        }
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
        mutex_unlock(&dhd->cpufreq_fix);
#endif // endif
}

static void dhd_rollback_cpu_freq(dhd_info_t *dhd)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
        mutex_lock(&dhd ->cpufreq_fix);
#endif // endif
        if (dhd && dhd->cpufreq_fix_status != TRUE) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
                mutex_unlock(&dhd->cpufreq_fix);
#endif // endif
                return;
        }

        pm_qos_remove_request(&dhd->dhd_cpu_qos);
#ifdef FIX_BUS_MIN_CLOCK
        pm_qos_remove_request(&dhd->dhd_bus_qos);
#endif /* FIX_BUS_MIN_CLOCK */
        DHD_ERROR(("pm_qos_add_requests called\n"));

        dhd->cpufreq_fix_status = FALSE;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
        mutex_unlock(&dhd->cpufreq_fix);
#endif // endif
}
#endif /* FIX_CPU_MIN_CLOCK */

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
static int
dhd_ioctl_entry_wrapper(struct net_device *net, struct ifreq *ifr, int cmd)
{
        int error;
        dhd_info_t *dhd = DHD_DEV_INFO(net);

        if (atomic_read(&dhd->pub.block_bus))
                return -EHOSTDOWN;

        if (pm_runtime_get_sync(dhd_bus_to_dev(dhd->pub.bus)) < 0)
                return BCME_ERROR;

        error = dhd_ioctl_entry(net, ifr, cmd);

        pm_runtime_mark_last_busy(dhd_bus_to_dev(dhd->pub.bus));
        pm_runtime_put_autosuspend(dhd_bus_to_dev(dhd->pub.bus));

        return error;
}
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */

static int
dhd_stop(struct net_device *net)
{
        int ifidx = 0;
        bool skip_reset = false;
#if defined(WL_CFG80211)
        unsigned long flags = 0;
#ifdef WL_STATIC_IF
        struct bcm_cfg80211 *cfg = wl_get_cfg(net);
#endif /* WL_STATIC_IF */
#endif /* WL_CFG80211 */
        dhd_info_t *dhd = DHD_DEV_INFO(net);
        DHD_OS_WAKE_LOCK(&dhd->pub);
        DHD_PERIM_LOCK(&dhd->pub);
        DHD_TRACE(("%s: Enter %p\n", __FUNCTION__, net));
        dhd->pub.rxcnt_timeout = 0;
        dhd->pub.txcnt_timeout = 0;

#ifdef BCMPCIE
        dhd->pub.d3ackcnt_timeout = 0;
#endif /* BCMPCIE */

        mutex_lock(&dhd->pub.ndev_op_sync);

        if (dhd->pub.up == 0) {
                goto exit;
        }
#if defined(DHD_HANG_SEND_UP_TEST)
        if (dhd->pub.req_hang_type) {
                DHD_ERROR(("%s, Clear HANG test request 0x%x\n",
                        __FUNCTION__, dhd->pub.req_hang_type));
                dhd->pub.req_hang_type = 0;
        }
#endif /* DHD_HANG_SEND_UP_TEST */

        dhd_if_flush_sta(DHD_DEV_IFP(net));

#ifdef FIX_CPU_MIN_CLOCK
        if (dhd_get_fw_mode(dhd) == DHD_FLAG_HOSTAP_MODE)
                dhd_rollback_cpu_freq(dhd);
#endif /* FIX_CPU_MIN_CLOCK */

        ifidx = dhd_net2idx(dhd, net);
        BCM_REFERENCE(ifidx);

#if defined(WL_STATIC_IF) && defined(WL_CFG80211)
        /* If static if is operational, don't reset the chip */
        if (IS_CFG80211_STATIC_IF_ACTIVE(cfg)) {
                DHD_INFO(("[STATIC_IF] static if operational. Avoiding chip reset!\n"));
                wl_cfg80211_sta_ifdown(net);
                skip_reset = true;
                goto exit;
        }
#endif /* WL_STATIC_IF && WL_CFG80211 */
#ifdef WL_CFG80211

        /* Disable Runtime PM before interface down */
        DHD_DISABLE_RUNTIME_PM(&dhd->pub);

        spin_lock_irqsave(&dhd->pub.up_lock, flags);
        dhd->pub.up = 0;
        spin_unlock_irqrestore(&dhd->pub.up_lock, flags);
#else
        dhd->pub.up = 0;
#endif /* WL_CFG80211 */

#ifdef WL_CFG80211
        if (ifidx == 0) {
                dhd_if_t *ifp;
                wl_cfg80211_down(net);

                ifp = dhd->iflist[0];
                /*
                 * For CFG80211: Clean up all the left over virtual interfaces
                 * when the primary Interface is brought down. [ifconfig wlan0 down]
                 */
                if (!dhd_download_fw_on_driverload) {
                        if ((dhd->dhd_state & DHD_ATTACH_STATE_ADD_IF) &&
                                (dhd->dhd_state & DHD_ATTACH_STATE_CFG80211)) {
                                int i;
#ifdef WL_CFG80211_P2P_DEV_IF
                                wl_cfg80211_del_p2p_wdev(net);
#endif /* WL_CFG80211_P2P_DEV_IF */

                                dhd_net_if_lock_local(dhd);
                                for (i = 1; i < DHD_MAX_IFS; i++)
                                        dhd_remove_if(&dhd->pub, i, FALSE);

                                if (ifp && ifp->net) {
                                        dhd_if_del_sta_list(ifp);
                                }
#ifdef ARP_OFFLOAD_SUPPORT
                                if (dhd_inetaddr_notifier_registered) {
                                        dhd_inetaddr_notifier_registered = FALSE;
                                        unregister_inetaddr_notifier(&dhd_inetaddr_notifier);
                                }
#endif /* ARP_OFFLOAD_SUPPORT */
#if defined(CONFIG_IPV6) && defined(IPV6_NDO_SUPPORT)
                                if (dhd_inet6addr_notifier_registered) {
                                        dhd_inet6addr_notifier_registered = FALSE;
                                        unregister_inet6addr_notifier(&dhd_inet6addr_notifier);
                                }
#endif /* CONFIG_IPV6 && IPV6_NDO_SUPPORT */
                                dhd_net_if_unlock_local(dhd);
                        }
                        cancel_work_sync(dhd->dhd_deferred_wq);

#ifdef SHOW_LOGTRACE
                        /* Wait till event_log_dispatcher_work finishes */
                        cancel_delayed_work_sync(&dhd->event_log_dispatcher_work);
#endif /* SHOW_LOGTRACE */

#if defined(DHD_LB_RXP)
                        __skb_queue_purge(&dhd->rx_pend_queue);
#endif /* DHD_LB_RXP */

#if defined(DHD_LB_TXP)
                        skb_queue_purge(&dhd->tx_pend_queue);
#endif /* DHD_LB_TXP */
                }

#if (defined(ARGOS_RPS_CPU_CTL) && defined(ARGOS_CPU_SCHEDULER)) || \
        defined(ARGOS_NOTIFY_CB)
                argos_register_notifier_deinit();
#endif /* (ARGOS_RPS_CPU_CTL && ARGOS_CPU_SCHEDULER) || ARGOS_NOTIFY_CB */
#ifdef DHDTCPACK_SUPPRESS
                dhd_tcpack_suppress_set(&dhd->pub, TCPACK_SUP_OFF);
#endif /* DHDTCPACK_SUPPRESS */
#if defined(DHD_LB_RXP)
                if (ifp && ifp->net == dhd->rx_napi_netdev) {
                        DHD_INFO(("%s napi<%p> disabled ifp->net<%p,%s>\n",
                                __FUNCTION__, &dhd->rx_napi_struct, net, net->name));
                        skb_queue_purge(&dhd->rx_napi_queue);
                        napi_disable(&dhd->rx_napi_struct);
                        netif_napi_del(&dhd->rx_napi_struct);
                        dhd->rx_napi_netdev = NULL;
                }
#endif /* DHD_LB_RXP */
        }
#endif /* WL_CFG80211 */

        DHD_SSSR_DUMP_DEINIT(&dhd->pub);

#ifdef PROP_TXSTATUS
        dhd_wlfc_cleanup(&dhd->pub, NULL, 0);
#endif // endif
#ifdef SHOW_LOGTRACE
        if (!dhd_download_fw_on_driverload) {
                /* Release the skbs from queue for WLC_E_TRACE event */
                dhd_event_logtrace_flush_queue(&dhd->pub);
                if (dhd->dhd_state & DHD_ATTACH_LOGTRACE_INIT) {
                        if (dhd->event_data.fmts) {
                                MFREE(dhd->pub.osh, dhd->event_data.fmts,
                                        dhd->event_data.fmts_size);
                                dhd->event_data.fmts = NULL;
                        }
                        if (dhd->event_data.raw_fmts) {
                                MFREE(dhd->pub.osh, dhd->event_data.raw_fmts,
                                        dhd->event_data.raw_fmts_size);
                                dhd->event_data.raw_fmts = NULL;
                        }
                        if (dhd->event_data.raw_sstr) {
                                MFREE(dhd->pub.osh, dhd->event_data.raw_sstr,
                                        dhd->event_data.raw_sstr_size);
                                dhd->event_data.raw_sstr = NULL;
                        }
                        if (dhd->event_data.rom_raw_sstr) {
                                MFREE(dhd->pub.osh, dhd->event_data.rom_raw_sstr,
                                        dhd->event_data.rom_raw_sstr_size);
                                dhd->event_data.rom_raw_sstr = NULL;
                        }
                        dhd->dhd_state &= ~DHD_ATTACH_LOGTRACE_INIT;
                }
        }
#endif /* SHOW_LOGTRACE */
#ifdef APF
        dhd_dev_apf_delete_filter(net);
#endif /* APF */

        /* Stop the protocol module */
        dhd_prot_stop(&dhd->pub);

        OLD_MOD_DEC_USE_COUNT;
exit:
        if (skip_reset == false) {
#if defined(WL_CFG80211)
                if (ifidx == 0 && !dhd_download_fw_on_driverload) {
#if defined(BT_OVER_SDIO)
                        dhd_bus_put(&dhd->pub, WLAN_MODULE);
                        wl_android_set_wifi_on_flag(FALSE);
#else
                        wl_android_wifi_off(net, TRUE);
#endif /* BT_OVER_SDIO */
                }
#ifdef SUPPORT_DEEP_SLEEP
                else {
                        /* CSP#505233: Flags to indicate if we distingish
                         * power off policy when user set the memu
                         * "Keep Wi-Fi on during sleep" to "Never"
                         */
                        if (trigger_deep_sleep) {
                                dhd_deepsleep(net, 1);
                                trigger_deep_sleep = 0;
                        }
                }
#endif /* SUPPORT_DEEP_SLEEP */
#endif // endif
                dhd->pub.hang_was_sent = 0;

                /* Clear country spec for for built-in type driver */
                if (!dhd_download_fw_on_driverload) {
                        dhd->pub.dhd_cspec.country_abbrev[0] = 0x00;
                        dhd->pub.dhd_cspec.rev = 0;
                        dhd->pub.dhd_cspec.ccode[0] = 0x00;
                }

#ifdef BCMDBGFS
                dhd_dbgfs_remove();
#endif // endif
        }

        DHD_PERIM_UNLOCK(&dhd->pub);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);

        /* Destroy wakelock */
        if (!dhd_download_fw_on_driverload &&
                (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT) &&
                (skip_reset == false)) {
                DHD_OS_WAKE_LOCK_DESTROY(dhd);
                dhd->dhd_state &= ~DHD_ATTACH_STATE_WAKELOCKS_INIT;
        }

        mutex_unlock(&dhd->pub.ndev_op_sync);
        return 0;
}

#if defined(WL_CFG80211) && (defined(USE_INITIAL_2G_SCAN) || \
        defined(USE_INITIAL_SHORT_DWELL_TIME))
extern bool g_first_broadcast_scan;
#endif /* OEM_ANDROID && WL_CFG80211 && (USE_INITIAL_2G_SCAN || USE_INITIAL_SHORT_DWELL_TIME) */

#ifdef WL11U
static int dhd_interworking_enable(dhd_pub_t *dhd)
{
        uint32 enable = true;
        int ret = BCME_OK;

        ret = dhd_iovar(dhd, 0, "interworking", (char *)&enable, sizeof(enable), NULL, 0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s: enableing interworking failed, ret=%d\n", __FUNCTION__, ret));
        }

        return ret;
}
#endif /* WL11u */

static int
dhd_open(struct net_device *net)
{
        dhd_info_t *dhd = DHD_DEV_INFO(net);
#ifdef TOE
        uint32 toe_ol;
#endif // endif
        int ifidx;
        int32 ret = 0;

#if defined(PREVENT_REOPEN_DURING_HANG)
        /* WAR : to prevent calling dhd_open abnormally in quick succession after hang event */
        if (dhd->pub.hang_was_sent == 1) {
                DHD_ERROR(("%s: HANG was sent up earlier\n", __FUNCTION__));
                /* Force to bring down WLAN interface in case dhd_stop() is not called
                 * from the upper layer when HANG event is triggered.
                 */
                if (!dhd_download_fw_on_driverload && dhd->pub.up == 1) {
                        DHD_ERROR(("%s: WLAN interface is not brought down\n", __FUNCTION__));
                        dhd_stop(net);
                } else {
                        return -1;
                }
        }
#endif /* PREVENT_REOPEN_DURING_HANG */

        mutex_lock(&dhd->pub.ndev_op_sync);

        if (dhd->pub.up == 1) {
                /* already up */
                DHD_ERROR(("Primary net_device is already up \n"));
                mutex_unlock(&dhd->pub.ndev_op_sync);
                return BCME_OK;
        }

        if (!dhd_download_fw_on_driverload) {
                if (!dhd_driver_init_done) {
                        DHD_ERROR(("%s: WLAN driver is not initialized\n", __FUNCTION__));
                        mutex_unlock(&dhd->pub.ndev_op_sync);
                        return -1;
                }
                /* Init wakelock */
                if (!(dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT)) {
                        DHD_OS_WAKE_LOCK_INIT(dhd);
                        dhd->dhd_state |= DHD_ATTACH_STATE_WAKELOCKS_INIT;
                }

#ifdef SHOW_LOGTRACE
                skb_queue_head_init(&dhd->evt_trace_queue);

                if (!(dhd->dhd_state & DHD_ATTACH_LOGTRACE_INIT)) {
                        ret = dhd_init_logstrs_array(dhd->pub.osh, &dhd->event_data);
                        if (ret == BCME_OK) {
                                dhd_init_static_strs_array(dhd->pub.osh, &dhd->event_data,
                                        st_str_file_path, map_file_path);
                                dhd_init_static_strs_array(dhd->pub.osh, &dhd->event_data,
                                        rom_st_str_file_path, rom_map_file_path);
                                dhd->dhd_state |= DHD_ATTACH_LOGTRACE_INIT;
                        }
                }
#endif /* SHOW_LOGTRACE */
        }

#if defined(MULTIPLE_SUPPLICANT)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && defined(BCMSDIO)
        if (mutex_is_locked(&_dhd_sdio_mutex_lock_) != 0) {
                DHD_ERROR(("%s : dhd_open: call dev open before insmod complete!\n", __FUNCTION__));
        }
        mutex_lock(&_dhd_sdio_mutex_lock_);
#endif // endif
#endif /* MULTIPLE_SUPPLICANT */

        DHD_OS_WAKE_LOCK(&dhd->pub);
        DHD_PERIM_LOCK(&dhd->pub);
        dhd->pub.dongle_trap_occured = 0;
        dhd->pub.hang_was_sent = 0;
        dhd->pub.hang_reason = 0;
        dhd->pub.iovar_timeout_occured = 0;
#ifdef PCIE_FULL_DONGLE
        dhd->pub.d3ack_timeout_occured = 0;
#endif /* PCIE_FULL_DONGLE */
#ifdef DHD_MAP_LOGGING
        dhd->pub.smmu_fault_occurred = 0;
#endif /* DHD_MAP_LOGGING */

#ifdef DHD_LOSSLESS_ROAMING
        dhd->pub.dequeue_prec_map = ALLPRIO;
#endif // endif

#if !defined(WL_CFG80211)
        /*
         * Force start if ifconfig_up gets called before START command
         *  We keep WEXT's wl_control_wl_start to provide backward compatibility
         *  This should be removed in the future
         */
        ret = wl_control_wl_start(net);
        if (ret != 0) {
                DHD_ERROR(("%s: failed with code %d\n", __FUNCTION__, ret));
                ret = -1;
                goto exit;
        }

#endif // endif

        ifidx = dhd_net2idx(dhd, net);
        DHD_TRACE(("%s: ifidx %d\n", __FUNCTION__, ifidx));

        if (ifidx < 0) {
                DHD_ERROR(("%s: Error: called with invalid IF\n", __FUNCTION__));
                ret = -1;
                goto exit;
        }

        if (!dhd->iflist[ifidx]) {
                DHD_ERROR(("%s: Error: called when IF already deleted\n", __FUNCTION__));
                ret = -1;
                goto exit;
        }

        if (ifidx == 0) {
                atomic_set(&dhd->pend_8021x_cnt, 0);
#if defined(WL_CFG80211)
                if (!dhd_download_fw_on_driverload) {
                        DHD_ERROR(("\n%s\n", dhd_version));
#if defined(USE_INITIAL_2G_SCAN) || defined(USE_INITIAL_SHORT_DWELL_TIME)
                        g_first_broadcast_scan = TRUE;
#endif /* USE_INITIAL_2G_SCAN || USE_INITIAL_SHORT_DWELL_TIME */
#if defined(BT_OVER_SDIO)
                        ret = dhd_bus_get(&dhd->pub, WLAN_MODULE);
                        wl_android_set_wifi_on_flag(TRUE);
#else
                        ret = wl_android_wifi_on(net);
#endif /* BT_OVER_SDIO */
                        if (ret != 0) {
                                DHD_ERROR(("%s : wl_android_wifi_on failed (%d)\n",
                                        __FUNCTION__, ret));
                                ret = -1;
                                goto exit;
                        }
                }
#ifdef SUPPORT_DEEP_SLEEP
                else {
                        /* Flags to indicate if we distingish
                         * power off policy when user set the memu
                         * "Keep Wi-Fi on during sleep" to "Never"
                         */
                        if (trigger_deep_sleep) {
#if defined(USE_INITIAL_2G_SCAN) || defined(USE_INITIAL_SHORT_DWELL_TIME)
                                g_first_broadcast_scan = TRUE;
#endif /* USE_INITIAL_2G_SCAN || USE_INITIAL_SHORT_DWELL_TIME */
                                dhd_deepsleep(net, 0);
                                trigger_deep_sleep = 0;
                        }
                }
#endif /* SUPPORT_DEEP_SLEEP */
#ifdef FIX_CPU_MIN_CLOCK
                if (dhd_get_fw_mode(dhd) == DHD_FLAG_HOSTAP_MODE) {
                        dhd_init_cpufreq_fix(dhd);
                        dhd_fix_cpu_freq(dhd);
                }
#endif /* FIX_CPU_MIN_CLOCK */
#endif // endif

                if (dhd->pub.busstate != DHD_BUS_DATA) {

                        /* try to bring up bus */
                        DHD_PERIM_UNLOCK(&dhd->pub);

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
                        if (pm_runtime_get_sync(dhd_bus_to_dev(dhd->pub.bus)) >= 0) {
                                ret = dhd_bus_start(&dhd->pub);
                                pm_runtime_mark_last_busy(dhd_bus_to_dev(dhd->pub.bus));
                                pm_runtime_put_autosuspend(dhd_bus_to_dev(dhd->pub.bus));
                        }
#else
                        ret = dhd_bus_start(&dhd->pub);
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */

                        DHD_PERIM_LOCK(&dhd->pub);
                        if (ret) {
                                DHD_ERROR(("%s: failed with code %d\n", __FUNCTION__, ret));
                                ret = -1;
                                goto exit;
                        }

                }

#ifdef BT_OVER_SDIO
                if (dhd->pub.is_bt_recovery_required) {
                        DHD_ERROR(("%s: Send Hang Notification 2 to BT\n", __FUNCTION__));
                        bcmsdh_btsdio_process_dhd_hang_notification(TRUE);
                }
                dhd->pub.is_bt_recovery_required = FALSE;
#endif // endif

                /* dhd_sync_with_dongle has been called in dhd_bus_start or wl_android_wifi_on */
                memcpy(net->dev_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);

#ifdef TOE
                /* Get current TOE mode from dongle */
                if (dhd_toe_get(dhd, ifidx, &toe_ol) >= 0 && (toe_ol & TOE_TX_CSUM_OL) != 0) {
                        dhd->iflist[ifidx]->net->features |= NETIF_F_IP_CSUM;
                } else {
                        dhd->iflist[ifidx]->net->features &= ~NETIF_F_IP_CSUM;
                }
#endif /* TOE */

#if defined(DHD_LB_RXP)
                __skb_queue_head_init(&dhd->rx_pend_queue);
                if (dhd->rx_napi_netdev == NULL) {
                        dhd->rx_napi_netdev = dhd->iflist[ifidx]->net;
                        memset(&dhd->rx_napi_struct, 0, sizeof(struct napi_struct));
                        netif_napi_add(dhd->rx_napi_netdev, &dhd->rx_napi_struct,
                                dhd_napi_poll, dhd_napi_weight);
                        DHD_INFO(("%s napi<%p> enabled ifp->net<%p,%s>\n",
                                __FUNCTION__, &dhd->rx_napi_struct, net, net->name));
                        napi_enable(&dhd->rx_napi_struct);
                        DHD_INFO(("%s load balance init rx_napi_struct\n", __FUNCTION__));
                        skb_queue_head_init(&dhd->rx_napi_queue);
                } /* rx_napi_netdev == NULL */
#endif /* DHD_LB_RXP */
#ifdef DHD_LB_IRQSET
                dhd_irq_set_affinity(&dhd->pub);
#endif /* DHD_LB_IRQSET */

#if defined(DHD_LB_TXP)
                /* Use the variant that uses locks */
                skb_queue_head_init(&dhd->tx_pend_queue);
#endif /* DHD_LB_TXP */

#if defined(WL_CFG80211)
                if (unlikely(wl_cfg80211_up(net))) {
                        DHD_ERROR(("%s: failed to bring up cfg80211\n", __FUNCTION__));
                        ret = -1;
                        goto exit;
                }
                if (!dhd_download_fw_on_driverload) {
#ifdef ARP_OFFLOAD_SUPPORT
                        dhd->pend_ipaddr = 0;
                        if (!dhd_inetaddr_notifier_registered) {
                                dhd_inetaddr_notifier_registered = TRUE;
                                register_inetaddr_notifier(&dhd_inetaddr_notifier);
                        }
#endif /* ARP_OFFLOAD_SUPPORT */
#if defined(CONFIG_IPV6) && defined(IPV6_NDO_SUPPORT)
                        if (!dhd_inet6addr_notifier_registered) {
                                dhd_inet6addr_notifier_registered = TRUE;
                                register_inet6addr_notifier(&dhd_inet6addr_notifier);
                        }
#endif /* CONFIG_IPV6 && IPV6_NDO_SUPPORT */
                }

#if (defined(ARGOS_CPU_SCHEDULER) && defined(ARGOS_RPS_CPU_CTL)) || \
        defined(ARGOS_NOTIFY_CB)
                argos_register_notifier_init(net);
#endif /* (ARGOS_CPU_SCHEDULER && ARGOS_RPS_CPU_CTL) || ARGOS_NOTIFY_CB  */
#if defined(BCMPCIE) && defined(DHDTCPACK_SUPPRESS)
#if defined(SET_RPS_CPUS) || defined(ARGOS_RPS_CPU_CTL)
                dhd_tcpack_suppress_set(&dhd->pub, TCPACK_SUP_OFF);
#else
                dhd_tcpack_suppress_set(&dhd->pub, TCPACK_SUP_OFF);
#endif /* ARGOS_CPU_SCHEDULER && ARGOS_RPS_CPU_CTL */
#endif /* BCMPCIE && DHDTCPACK_SUPPRESS */
#if defined(NUM_SCB_MAX_PROBE)
                dhd_set_scb_probe(&dhd->pub);
#endif /* NUM_SCB_MAX_PROBE */
#endif /* WL_CFG80211 */
        }

        dhd->pub.up = 1;

        if (wl_event_enable) {
                /* For wl utility to receive events */
                dhd->pub.wl_event_enabled = true;
        } else {
                dhd->pub.wl_event_enabled = false;
        }

        if (logtrace_pkt_sendup) {
                /* For any deamon to recieve logtrace */
                dhd->pub.logtrace_pkt_sendup = true;
        } else {
                dhd->pub.logtrace_pkt_sendup = false;
        }

        OLD_MOD_INC_USE_COUNT;

#ifdef BCMDBGFS
        dhd_dbgfs_init(&dhd->pub);
#endif // endif

exit:
        mutex_unlock(&dhd->pub.ndev_op_sync);
        if (ret) {
                dhd_stop(net);
        }

        DHD_PERIM_UNLOCK(&dhd->pub);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);

#if defined(MULTIPLE_SUPPLICANT)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && defined(BCMSDIO)
        mutex_unlock(&_dhd_sdio_mutex_lock_);
#endif // endif
#endif /* MULTIPLE_SUPPLICANT */

        return ret;
}

/*
 * ndo_start handler for primary ndev
 */
static int
dhd_pri_open(struct net_device *net)
{
        s32 ret;

        ret = dhd_open(net);
        if (unlikely(ret)) {
                DHD_ERROR(("Failed to open primary dev ret %d\n", ret));
                return ret;
        }

        /* Allow transmit calls */
        netif_start_queue(net);
        DHD_ERROR(("[%s] tx queue started\n", net->name));
        return ret;
}

/*
 * ndo_stop handler for primary ndev
 */
static int
dhd_pri_stop(struct net_device *net)
{
        s32 ret;

        /* stop tx queue */
        netif_stop_queue(net);
        DHD_ERROR(("[%s] tx queue stopped\n", net->name));

        ret = dhd_stop(net);
        if (unlikely(ret)) {
                DHD_ERROR(("dhd_stop failed: %d\n", ret));
                return ret;
        }

        return ret;
}

#if defined(WL_STATIC_IF) && defined(WL_CFG80211)
/*
 * For static I/Fs, the firmware interface init
 * is done from the IFF_UP context.
 */
static int
dhd_static_if_open(struct net_device *net)
{
        s32 ret = 0;
        struct bcm_cfg80211 *cfg;
        struct net_device *primary_netdev = NULL;

        cfg = wl_get_cfg(net);
        primary_netdev = bcmcfg_to_prmry_ndev(cfg);

        if (!IS_CFG80211_STATIC_IF(cfg, net)) {
                DHD_TRACE(("non-static interface (%s)..do nothing \n", net->name));
                ret = BCME_OK;
                goto done;
        }

        DHD_INFO(("[%s][STATIC_IF] Enter \n", net->name));
        /* Ensure fw is initialized. If it is already initialized,
         * dhd_open will return success.
         */
        ret = dhd_open(primary_netdev);
        if (unlikely(ret)) {
                DHD_ERROR(("Failed to open primary dev ret %d\n", ret));
                goto done;
        }

        ret = wl_cfg80211_static_if_open(net);
        if (!ret) {
                /* Allow transmit calls */
                netif_start_queue(net);
        }
done:
        return ret;
}

static int
dhd_static_if_stop(struct net_device *net)
{
        struct bcm_cfg80211 *cfg;
        struct net_device *primary_netdev = NULL;
        int ret = BCME_OK;
        dhd_info_t *dhd = DHD_DEV_INFO(net);

        DHD_INFO(("[%s][STATIC_IF] Enter \n", net->name));

        /* Ensure queue is disabled */
        netif_tx_disable(net);

        cfg = wl_get_cfg(net);
        if (!IS_CFG80211_STATIC_IF(cfg, net)) {
                DHD_TRACE(("non-static interface (%s)..do nothing \n", net->name));
                return BCME_OK;
        }

        ret = wl_cfg80211_static_if_close(net);

        if (dhd->pub.up == 0) {
                /* If fw is down, return */
                DHD_ERROR(("fw down\n"));
                return BCME_OK;
        }
        /* If STA iface is not in operational, invoke dhd_close from this
        * context.
        */
        primary_netdev = bcmcfg_to_prmry_ndev(cfg);
        if (!(primary_netdev->flags & IFF_UP)) {
                ret = dhd_stop(primary_netdev);
        } else {
                DHD_ERROR(("Skipped dhd_stop, as sta is operational\n"));
        }

        return ret;
}
#endif /* WL_STATIC_IF && WL_CF80211 */

int dhd_do_driver_init(struct net_device *net)
{
        dhd_info_t *dhd = NULL;

        if (!net) {
                DHD_ERROR(("Primary Interface not initialized \n"));
                return -EINVAL;
        }

#ifdef MULTIPLE_SUPPLICANT
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && defined(BCMSDIO)
        if (mutex_is_locked(&_dhd_sdio_mutex_lock_) != 0) {
                DHD_ERROR(("%s : dhdsdio_probe is already running!\n", __FUNCTION__));
                return 0;
        }
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) */
#endif /* MULTIPLE_SUPPLICANT */

        /*  && defined(OEM_ANDROID) && defined(BCMSDIO) */
        dhd = DHD_DEV_INFO(net);

        /* If driver is already initialized, do nothing
         */
        if (dhd->pub.busstate == DHD_BUS_DATA) {
                DHD_TRACE(("Driver already Inititalized. Nothing to do"));
                return 0;
        }

        if (dhd_open(net) < 0) {
                DHD_ERROR(("Driver Init Failed \n"));
                return -1;
        }

        return 0;
}

int
dhd_event_ifadd(dhd_info_t *dhdinfo, wl_event_data_if_t *ifevent, char *name, uint8 *mac)
{

#ifdef WL_CFG80211
                if (wl_cfg80211_notify_ifadd(dhd_linux_get_primary_netdev(&dhdinfo->pub),
                        ifevent->ifidx, name, mac, ifevent->bssidx, ifevent->role) == BCME_OK)
                return BCME_OK;
#endif // endif

        /* handle IF event caused by wl commands, SoftAP, WEXT and
         * anything else. This has to be done asynchronously otherwise
         * DPC will be blocked (and iovars will timeout as DPC has no chance
         * to read the response back)
         */
        if (ifevent->ifidx > 0) {
                dhd_if_event_t *if_event = MALLOC(dhdinfo->pub.osh, sizeof(dhd_if_event_t));
                if (if_event == NULL) {
                        DHD_ERROR(("dhd_event_ifadd: Failed MALLOC, malloced %d bytes",
                                MALLOCED(dhdinfo->pub.osh)));
                        return BCME_NOMEM;
                }

                memcpy(&if_event->event, ifevent, sizeof(if_event->event));
                memcpy(if_event->mac, mac, ETHER_ADDR_LEN);
                strncpy(if_event->name, name, IFNAMSIZ);
                if_event->name[IFNAMSIZ - 1] = '\0';
                dhd_deferred_schedule_work(dhdinfo->dhd_deferred_wq, (void *)if_event,
                        DHD_WQ_WORK_IF_ADD, dhd_ifadd_event_handler, DHD_WQ_WORK_PRIORITY_LOW);
        }

        return BCME_OK;
}

int
dhd_event_ifdel(dhd_info_t *dhdinfo, wl_event_data_if_t *ifevent, char *name, uint8 *mac)
{
        dhd_if_event_t *if_event;

#ifdef WL_CFG80211
                if (wl_cfg80211_notify_ifdel(dhd_linux_get_primary_netdev(&dhdinfo->pub),
                        ifevent->ifidx, name, mac, ifevent->bssidx) == BCME_OK)
                return BCME_OK;
#endif /* WL_CFG80211 */

        /* handle IF event caused by wl commands, SoftAP, WEXT and
         * anything else
         */
        if_event = MALLOC(dhdinfo->pub.osh, sizeof(dhd_if_event_t));
        if (if_event == NULL) {
                DHD_ERROR(("dhd_event_ifdel: malloc failed for if_event, malloced %d bytes",
                        MALLOCED(dhdinfo->pub.osh)));
                return BCME_NOMEM;
        }
        memcpy(&if_event->event, ifevent, sizeof(if_event->event));
        memcpy(if_event->mac, mac, ETHER_ADDR_LEN);
        strncpy(if_event->name, name, IFNAMSIZ);
        if_event->name[IFNAMSIZ - 1] = '\0';
        dhd_deferred_schedule_work(dhdinfo->dhd_deferred_wq, (void *)if_event, DHD_WQ_WORK_IF_DEL,
                dhd_ifdel_event_handler, DHD_WQ_WORK_PRIORITY_LOW);

        return BCME_OK;
}

int
dhd_event_ifchange(dhd_info_t *dhdinfo, wl_event_data_if_t *ifevent, char *name, uint8 *mac)
{
#ifdef WL_CFG80211
        wl_cfg80211_notify_ifchange(dhd_linux_get_primary_netdev(&dhdinfo->pub),
                ifevent->ifidx, name, mac, ifevent->bssidx);
#endif /* WL_CFG80211 */
        return BCME_OK;
}

#ifdef WL_NATOE
/* Handler to update natoe info and bind with new subscriptions if there is change in config */
static void
dhd_natoe_ct_event_hanlder(void *handle, void *event_info, u8 event)
{
        dhd_info_t *dhd = handle;
        wl_event_data_natoe_t *natoe = event_info;
        dhd_nfct_info_t *nfct = dhd->pub.nfct;

        if (event != DHD_WQ_WORK_NATOE_EVENT) {
                DHD_ERROR(("%s: unexpected event \n", __FUNCTION__));
                return;
        }

        if (!dhd) {
                DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
                return;
        }
        if (natoe->natoe_active && natoe->sta_ip && natoe->start_port && natoe->end_port &&
                        (natoe->start_port < natoe->end_port)) {
                /* Rebind subscriptions to start receiving notifications from groups */
                if (dhd_ct_nl_bind(nfct, nfct->subscriptions) < 0) {
                        dhd_ct_close(nfct);
                }
                dhd_ct_send_dump_req(nfct);
        } else if (!natoe->natoe_active) {
                /* Rebind subscriptions to stop receiving notifications from groups */
                if (dhd_ct_nl_bind(nfct, CT_NULL_SUBSCRIPTION) < 0) {
                        dhd_ct_close(nfct);
                }
        }
}

/* As NATOE enable/disbale event is received, we have to bind with new NL subscriptions.
 * Scheduling workq to switch from tasklet context as bind call may sleep in handler
 */
int
dhd_natoe_ct_event(dhd_pub_t *dhd, char *data)
{
        wl_event_data_natoe_t *event_data = (wl_event_data_natoe_t *)data;

        if (dhd->nfct) {
                wl_event_data_natoe_t *natoe = dhd->nfct->natoe_info;
                uint8 prev_enable = natoe->natoe_active;

                spin_lock_bh(&dhd->nfct_lock);
                memcpy(natoe, event_data, sizeof(*event_data));
                spin_unlock_bh(&dhd->nfct_lock);

                if (prev_enable != event_data->natoe_active) {
                        dhd_deferred_schedule_work(dhd->info->dhd_deferred_wq,
                                        (void *)natoe, DHD_WQ_WORK_NATOE_EVENT,
                                        dhd_natoe_ct_event_hanlder, DHD_WQ_WORK_PRIORITY_LOW);
                }
                return BCME_OK;
        }
        DHD_ERROR(("%s ERROR NFCT is not enabled \n", __FUNCTION__));
        return BCME_ERROR;
}

/* Handler to send natoe ioctl to dongle */
static void
dhd_natoe_ct_ioctl_handler(void *handle, void *event_info, uint8 event)
{
        dhd_info_t *dhd = handle;
        dhd_ct_ioc_t *ct_ioc = event_info;

        if (event != DHD_WQ_WORK_NATOE_IOCTL) {
                DHD_ERROR(("%s: unexpected event \n", __FUNCTION__));
                return;
        }

        if (!dhd) {
                DHD_ERROR(("%s: dhd info not available \n", __FUNCTION__));
                return;
        }

        if (dhd_natoe_prep_send_exception_port_ioctl(&dhd->pub, ct_ioc) < 0) {
                DHD_ERROR(("%s: Error in sending NATOE IOCTL \n", __FUNCTION__));
        }
}

/* When Netlink message contains port collision info, the info must be sent to dongle FW
 * For that we have to switch context from softirq/tasklet by scheduling workq for natoe_ct ioctl
 */
void
dhd_natoe_ct_ioctl_schedule_work(dhd_pub_t *dhd, dhd_ct_ioc_t *ioc)
{

        dhd_deferred_schedule_work(dhd->info->dhd_deferred_wq, (void *)ioc,
                        DHD_WQ_WORK_NATOE_IOCTL, dhd_natoe_ct_ioctl_handler,
                        DHD_WQ_WORK_PRIORITY_HIGH);
}
#endif /* WL_NATOE */

/* This API maps ndev to ifp inclusive of static IFs */
static dhd_if_t *
dhd_get_ifp_by_ndev(dhd_pub_t *dhdp, struct net_device *ndev)
{
        dhd_if_t *ifp = NULL;
#ifdef WL_STATIC_IF
        u32 ifidx = (DHD_MAX_IFS + DHD_MAX_STATIC_IFS - 1);
#else
        u32 ifidx = (DHD_MAX_IFS - 1);
#endif /* WL_STATIC_IF */

        dhd_info_t *dhdinfo = (dhd_info_t *)dhdp->info;
        do {
                ifp = dhdinfo->iflist[ifidx];
                if (ifp && (ifp->net == ndev)) {
                        DHD_TRACE(("match found for %s. ifidx:%d\n",
                                ndev->name, ifidx));
                                return ifp;
                }
        } while (ifidx--);

        DHD_ERROR(("no entry found for %s\n", ndev->name));
        return NULL;
}

bool
dhd_is_static_ndev(dhd_pub_t *dhdp, struct net_device *ndev)
{
        dhd_if_t *ifp = NULL;

        if (!dhdp || !ndev) {
                DHD_ERROR(("wrong input\n"));
                ASSERT(0);
                return false;
        }

        ifp = dhd_get_ifp_by_ndev(dhdp, ndev);
        return (ifp && (ifp->static_if == true));
}

#ifdef WL_STATIC_IF
/* In some cases, while registering I/F, the actual ifidx, bssidx and dngl_name
 * are not known. For e.g: static i/f case. This function lets to update it once
 * it is known.
 */
s32
dhd_update_iflist_info(dhd_pub_t *dhdp, struct net_device *ndev, int ifidx,
        uint8 *mac, uint8 bssidx, const char *dngl_name, int if_state)
{
        dhd_info_t *dhdinfo = (dhd_info_t *)dhdp->info;
        dhd_if_t *ifp, *ifp_new;
        s32 cur_idx;
        dhd_dev_priv_t * dev_priv;

        DHD_TRACE(("[STATIC_IF] update ifinfo for state:%d ifidx:%d\n",
                        if_state, ifidx));

        ASSERT(dhdinfo && (ifidx < (DHD_MAX_IFS + DHD_MAX_STATIC_IFS)));

        if ((ifp = dhd_get_ifp_by_ndev(dhdp, ndev)) == NULL) {
                return -ENODEV;
        }
        cur_idx = ifp->idx;

        if (if_state == NDEV_STATE_OS_IF_CREATED) {
                /* mark static if */
                ifp->static_if = TRUE;
                return BCME_OK;
        }

        ifp_new = dhdinfo->iflist[ifidx];
        if (ifp_new && (ifp_new != ifp)) {
                /* There should be only one entry for a given ifidx. */
                DHD_ERROR(("ifp ptr already present for ifidx:%d\n", ifidx));
                ASSERT(0);
                dhdp->hang_reason = HANG_REASON_IFACE_ADD_FAILURE;
                net_os_send_hang_message(ifp->net);
                return -EINVAL;
        }

        /* For static if delete case, cleanup the if before ifidx update */
        if ((if_state == NDEV_STATE_FW_IF_DELETED) ||
                (if_state == NDEV_STATE_FW_IF_FAILED)) {
                dhd_cleanup_if(ifp->net);
                dev_priv = DHD_DEV_PRIV(ndev);
                dev_priv->ifidx = ifidx;
        }

        /* update the iflist ifidx slot with cached info */
        dhdinfo->iflist[ifidx] = ifp;
        dhdinfo->iflist[cur_idx] = NULL;

        /* update the values */
        ifp->idx = ifidx;
        ifp->bssidx = bssidx;

        if (if_state == NDEV_STATE_FW_IF_CREATED) {
                dhd_dev_priv_save(ndev, dhdinfo, ifp, ifidx);
                /* initialize the dongle provided if name */
                if (dngl_name) {
                        strlcpy(ifp->dngl_name, dngl_name, IFNAMSIZ);
                } else if (ndev->name[0] != '\0') {
                        strlcpy(ifp->dngl_name, ndev->name, IFNAMSIZ);
                }
                if (mac != NULL)
                        memcpy(&ifp->mac_addr, mac, ETHER_ADDR_LEN);
        }
        DHD_INFO(("[STATIC_IF] ifp ptr updated for ifidx:%d curidx:%d if_state:%d\n",
                ifidx, cur_idx, if_state));
        return BCME_OK;
}
#endif /* WL_STATIC_IF */

/* unregister and free the existing net_device interface (if any) in iflist and
 * allocate a new one. the slot is reused. this function does NOT register the
 * new interface to linux kernel. dhd_register_if does the job
 */
struct net_device*
dhd_allocate_if(dhd_pub_t *dhdpub, int ifidx, const char *name,
        uint8 *mac, uint8 bssidx, bool need_rtnl_lock, const char *dngl_name)
{
        dhd_info_t *dhdinfo = (dhd_info_t *)dhdpub->info;
        dhd_if_t *ifp;

        ASSERT(dhdinfo && (ifidx < (DHD_MAX_IFS + DHD_MAX_STATIC_IFS)));

        ifp = dhdinfo->iflist[ifidx];

        if (ifp != NULL) {
                if (ifp->net != NULL) {
                        DHD_ERROR(("%s: free existing IF %s ifidx:%d \n",
                                __FUNCTION__, ifp->net->name, ifidx));

                        if (ifidx == 0) {
                                /* For primary ifidx (0), there shouldn't be
                                 * any netdev present already.
                                 */
                                DHD_ERROR(("Primary ifidx populated already\n"));
                                ASSERT(0);
                                return NULL;
                        }

                        dhd_dev_priv_clear(ifp->net); /* clear net_device private */

                        /* in unregister_netdev case, the interface gets freed by net->destructor
                         * (which is set to free_netdev)
                         */
                        if (ifp->net->reg_state == NETREG_UNINITIALIZED) {
                                free_netdev(ifp->net);
                        } else {
                                netif_stop_queue(ifp->net);
                                if (need_rtnl_lock)
                                        unregister_netdev(ifp->net);
                                else
                                        unregister_netdevice(ifp->net);
                        }
                        ifp->net = NULL;
                }
        } else {
                ifp = MALLOC(dhdinfo->pub.osh, sizeof(dhd_if_t));
                if (ifp == NULL) {
                        DHD_ERROR(("%s: OOM - dhd_if_t(%zu)\n", __FUNCTION__, sizeof(dhd_if_t)));
                        return NULL;
                }
        }

        memset(ifp, 0, sizeof(dhd_if_t));
        ifp->info = dhdinfo;
        ifp->idx = ifidx;
        ifp->bssidx = bssidx;
#ifdef DHD_MCAST_REGEN
        ifp->mcast_regen_bss_enable = FALSE;
#endif // endif
        /* set to TRUE rx_pkt_chainable at alloc time */
        ifp->rx_pkt_chainable = TRUE;

        if (mac != NULL)
                memcpy(&ifp->mac_addr, mac, ETHER_ADDR_LEN);

        /* Allocate etherdev, including space for private structure */
        ifp->net = alloc_etherdev(DHD_DEV_PRIV_SIZE);
        if (ifp->net == NULL) {
                DHD_ERROR(("%s: OOM - alloc_etherdev(%zu)\n", __FUNCTION__, sizeof(dhdinfo)));
                goto fail;
        }

        /* Setup the dhd interface's netdevice private structure. */
        dhd_dev_priv_save(ifp->net, dhdinfo, ifp, ifidx);

        if (name && name[0]) {
                strncpy(ifp->net->name, name, IFNAMSIZ);
                ifp->net->name[IFNAMSIZ - 1] = '\0';
        }

#ifdef WL_CFG80211
        if (ifidx == 0)
                ifp->net->destructor = free_netdev;
        else
                ifp->net->destructor = dhd_netdev_free;
#else
        ifp->net->destructor = free_netdev;
#endif /* WL_CFG80211 */
        strncpy(ifp->name, ifp->net->name, IFNAMSIZ);
        ifp->name[IFNAMSIZ - 1] = '\0';
        dhdinfo->iflist[ifidx] = ifp;

        /* initialize the dongle provided if name */
        if (dngl_name) {
                strncpy(ifp->dngl_name, dngl_name, IFNAMSIZ);
        } else if (name) {
                strncpy(ifp->dngl_name, name, IFNAMSIZ);
        }

#ifdef PCIE_FULL_DONGLE
        /* Initialize STA info list */
        INIT_LIST_HEAD(&ifp->sta_list);
        DHD_IF_STA_LIST_LOCK_INIT(ifp);
#endif /* PCIE_FULL_DONGLE */

#ifdef DHD_L2_FILTER
        ifp->phnd_arp_table = init_l2_filter_arp_table(dhdpub->osh);
        ifp->parp_allnode = TRUE;
#endif /* DHD_L2_FILTER */

        DHD_CUMM_CTR_INIT(&ifp->cumm_ctr);

#ifdef DHDTCPSYNC_FLOOD_BLK
        INIT_WORK(&ifp->blk_tsfl_work, dhd_blk_tsfl_handler);
        dhd_reset_tcpsync_info_by_ifp(ifp);
#endif /* DHDTCPSYNC_FLOOD_BLK */

        return ifp->net;

fail:
        if (ifp != NULL) {
                if (ifp->net != NULL) {
#if defined(DHD_LB_RXP) && defined(PCIE_FULL_DONGLE)
                        if (ifp->net == dhdinfo->rx_napi_netdev) {
                                napi_disable(&dhdinfo->rx_napi_struct);
                                netif_napi_del(&dhdinfo->rx_napi_struct);
                                skb_queue_purge(&dhdinfo->rx_napi_queue);
                                dhdinfo->rx_napi_netdev = NULL;
                        }
#endif /* DHD_LB_RXP && PCIE_FULL_DONGLE */
                        dhd_dev_priv_clear(ifp->net);
                        free_netdev(ifp->net);
                        ifp->net = NULL;
                }
                MFREE(dhdinfo->pub.osh, ifp, sizeof(*ifp));
                ifp = NULL;
        }

        dhdinfo->iflist[ifidx] = NULL;
        return NULL;
}

static void
dhd_cleanup_ifp(dhd_pub_t *dhdp, dhd_if_t *ifp)
{
#ifdef PCIE_FULL_DONGLE
        s32 ifidx = 0;
        if_flow_lkup_t *if_flow_lkup = (if_flow_lkup_t *)dhdp->if_flow_lkup;
#endif /* PCIE_FULL_DONGLE */

        if (ifp != NULL) {
                if ((ifp->idx < 0) || (ifp->idx >= DHD_MAX_IFS)) {
                        DHD_ERROR(("Wrong idx:%d \n", ifp->idx));
                        ASSERT(0);
                        return;
                }
#ifdef DHD_L2_FILTER
                bcm_l2_filter_arp_table_update(dhdpub->osh, ifp->phnd_arp_table, TRUE,
                        NULL, FALSE, dhdpub->tickcnt);
                deinit_l2_filter_arp_table(dhdpub->osh, ifp->phnd_arp_table);
                ifp->phnd_arp_table = NULL;
#endif /* DHD_L2_FILTER */

                dhd_if_del_sta_list(ifp);
#ifdef PCIE_FULL_DONGLE
                /* Delete flowrings of virtual interface */
                ifidx = ifp->idx;
                if ((ifidx != 0) && (if_flow_lkup[ifidx].role != WLC_E_IF_ROLE_AP)) {
                        dhd_flow_rings_delete(dhdp, ifidx);
                }
#endif /* PCIE_FULL_DONGLE */
        }
}

void
dhd_cleanup_if(struct net_device *net)
{
        dhd_info_t *dhdinfo = DHD_DEV_INFO(net);
        dhd_pub_t *dhdp = &dhdinfo->pub;
        dhd_if_t *ifp;

        if (!(ifp = dhd_get_ifp_by_ndev(dhdp, net)) ||
                        (ifp->idx >= DHD_MAX_IFS)) {
                DHD_ERROR(("Wrong ifidx: %p, %d\n", ifp, ifp ? ifp->idx : -1));
                ASSERT(0);
                return;
        }

        dhd_cleanup_ifp(dhdp, ifp);
}

/* unregister and free the the net_device interface associated with the indexed
 * slot, also free the slot memory and set the slot pointer to NULL
 */
#define DHD_TX_COMPLETION_TIMEOUT 5000
int
dhd_remove_if(dhd_pub_t *dhdpub, int ifidx, bool need_rtnl_lock)
{
        dhd_info_t *dhdinfo = (dhd_info_t *)dhdpub->info;
        dhd_if_t *ifp;
        unsigned long flags;
        long timeout;

        ifp = dhdinfo->iflist[ifidx];

        if (ifp != NULL) {
#ifdef DHDTCPSYNC_FLOOD_BLK
                cancel_work_sync(&ifp->blk_tsfl_work);
#endif /* DHDTCPSYNC_FLOOD_BLK */
#ifdef WL_STATIC_IF
                /* static IF will be handled in detach */
                if (ifp->static_if) {
                        DHD_TRACE(("Skip del iface for static interface\n"));
                        return BCME_OK;
                }
#endif /* WL_STATIC_IF */
                if (ifp->net != NULL) {
                        DHD_ERROR(("deleting interface '%s' idx %d\n", ifp->net->name, ifp->idx));

                        DHD_GENERAL_LOCK(dhdpub, flags);
                        ifp->del_in_progress = true;
                        DHD_GENERAL_UNLOCK(dhdpub, flags);

                        /* If TX is in progress, hold the if del */
                        if (DHD_IF_IS_TX_ACTIVE(ifp)) {
                                DHD_INFO(("TX in progress. Wait for it to be complete."));
                                timeout = wait_event_timeout(dhdpub->tx_completion_wait,
                                        ((ifp->tx_paths_active & DHD_TX_CONTEXT_MASK) == 0),
                                        msecs_to_jiffies(DHD_TX_COMPLETION_TIMEOUT));
                                if (!timeout) {
                                        /* Tx completion timeout. Attempt proceeding ahead */
                                        DHD_ERROR(("Tx completion timed out!\n"));
                                        ASSERT(0);
                                }
                        } else {
                                DHD_TRACE(("No outstanding TX!\n"));
                        }
                        dhdinfo->iflist[ifidx] = NULL;
                        /* in unregister_netdev case, the interface gets freed by net->destructor
                         * (which is set to free_netdev)
                         */
                        if (ifp->net->reg_state == NETREG_UNINITIALIZED) {
                                free_netdev(ifp->net);
                        } else {
                                netif_tx_disable(ifp->net);

#if defined(SET_RPS_CPUS)
                                custom_rps_map_clear(ifp->net->_rx);
#endif /* SET_RPS_CPUS */
#if (defined(SET_RPS_CPUS) || defined(ARGOS_RPS_CPU_CTL))
#if (defined(DHDTCPACK_SUPPRESS) && defined(BCMPCIE))
                                dhd_tcpack_suppress_set(dhdpub, TCPACK_SUP_OFF);
#endif /* DHDTCPACK_SUPPRESS && BCMPCIE */
#endif /* SET_RPS_CPUS || ARGOS_RPS_CPU_CTL */
                                if (need_rtnl_lock)
                                        unregister_netdev(ifp->net);
                                else
                                        unregister_netdevice(ifp->net);
                        }
                        ifp->net = NULL;
                        DHD_GENERAL_LOCK(dhdpub, flags);
                        ifp->del_in_progress = false;
                        DHD_GENERAL_UNLOCK(dhdpub, flags);
                }
                dhd_cleanup_ifp(dhdpub, ifp);
                DHD_CUMM_CTR_INIT(&ifp->cumm_ctr);

                MFREE(dhdinfo->pub.osh, ifp, sizeof(*ifp));
                ifp = NULL;
        }

        return BCME_OK;
}

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31))
static struct net_device_ops dhd_ops_pri = {
        .ndo_open = dhd_pri_open,
        .ndo_stop = dhd_pri_stop,
        .ndo_get_stats = dhd_get_stats,
#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
        .ndo_do_ioctl = dhd_ioctl_entry_wrapper,
        .ndo_start_xmit = dhd_start_xmit_wrapper,
#else
        .ndo_do_ioctl = dhd_ioctl_entry,
        .ndo_start_xmit = dhd_start_xmit,
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */
        .ndo_set_mac_address = dhd_set_mac_address,
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 2, 0))
        .ndo_set_rx_mode = dhd_set_multicast_list,
#else
        .ndo_set_multicast_list = dhd_set_multicast_list,
#endif // endif
};

static struct net_device_ops dhd_ops_virt = {
#if defined(WL_CFG80211) && defined(WL_STATIC_IF)
        .ndo_open = dhd_static_if_open,
        .ndo_stop = dhd_static_if_stop,
#endif // endif
        .ndo_get_stats = dhd_get_stats,
#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
        .ndo_do_ioctl = dhd_ioctl_entry_wrapper,
        .ndo_start_xmit = dhd_start_xmit_wrapper,
#else
        .ndo_do_ioctl = dhd_ioctl_entry,
        .ndo_start_xmit = dhd_start_xmit,
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */
        .ndo_set_mac_address = dhd_set_mac_address,
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 2, 0))
        .ndo_set_rx_mode = dhd_set_multicast_list,
#else
        .ndo_set_multicast_list = dhd_set_multicast_list,
#endif // endif
};
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31)) */

int
dhd_os_write_file_posn(void *fp, unsigned long *posn, void *buf,
                unsigned long buflen)
{
        loff_t wr_posn = *posn;

        if (!fp || !buf || buflen == 0)
                return -1;

        if (vfs_write((struct file *)fp, buf, buflen, &wr_posn) < 0)
                return -1;

        *posn = wr_posn;
        return 0;
}

#ifdef SHOW_LOGTRACE
int
dhd_os_read_file(void *file, char *buf, uint32 size)
{
        struct file *filep = (struct file *)file;

        if (!file || !buf)
                return -1;

        return vfs_read(filep, buf, size, &filep->f_pos);
}

int
dhd_os_seek_file(void *file, int64 offset)
{
        struct file *filep = (struct file *)file;
        if (!file)
                return -1;

        /* offset can be -ve */
        filep->f_pos = filep->f_pos + offset;

        return 0;
}

static int
dhd_init_logstrs_array(osl_t *osh, dhd_event_log_t *temp)
{
        struct file *filep = NULL;
        struct kstat stat;
        mm_segment_t fs;
        char *raw_fmts =  NULL;
        int logstrs_size = 0;
        int error = 0;

        fs = get_fs();
        set_fs(KERNEL_DS);

        filep = filp_open(logstrs_path, O_RDONLY, 0);

        if (IS_ERR(filep)) {
                DHD_ERROR_NO_HW4(("%s: Failed to open the file %s \n", __FUNCTION__, logstrs_path));
                goto fail;
        }
        error = vfs_stat(logstrs_path, &stat);
        if (error) {
                DHD_ERROR_NO_HW4(("%s: Failed to stat file %s \n", __FUNCTION__, logstrs_path));
                goto fail;
        }
        logstrs_size = (int) stat.size;

        if (logstrs_size == 0) {
                DHD_ERROR(("%s: return as logstrs_size is 0\n", __FUNCTION__));
                goto fail1;
        }

        raw_fmts = MALLOC(osh, logstrs_size);
        if (raw_fmts == NULL) {
                DHD_ERROR(("%s: Failed to allocate memory \n", __FUNCTION__));
                goto fail;
        }

        if (vfs_read(filep, raw_fmts, logstrs_size, &filep->f_pos) !=   logstrs_size) {
                DHD_ERROR_NO_HW4(("%s: Failed to read file %s\n", __FUNCTION__, logstrs_path));
                goto fail;
        }

        if (dhd_parse_logstrs_file(osh, raw_fmts, logstrs_size, temp)
                                == BCME_OK) {
                filp_close(filep, NULL);
                set_fs(fs);
                return BCME_OK;
        }

fail:
        if (raw_fmts) {
                MFREE(osh, raw_fmts, logstrs_size);
                raw_fmts = NULL;
        }

fail1:
        if (!IS_ERR(filep))
                filp_close(filep, NULL);

        set_fs(fs);
        temp->fmts = NULL;
        return BCME_ERROR;
}

static int
dhd_read_map(osl_t *osh, char *fname, uint32 *ramstart, uint32 *rodata_start,
                uint32 *rodata_end)
{
        struct file *filep = NULL;
        mm_segment_t fs;
        int err = BCME_ERROR;

        if (fname == NULL) {
                DHD_ERROR(("%s: ERROR fname is NULL \n", __FUNCTION__));
                return BCME_ERROR;
        }

        fs = get_fs();
        set_fs(KERNEL_DS);

        filep = filp_open(fname, O_RDONLY, 0);
        if (IS_ERR(filep)) {
                DHD_ERROR_NO_HW4(("%s: Failed to open %s \n",  __FUNCTION__, fname));
                goto fail;
        }

        if ((err = dhd_parse_map_file(osh, filep, ramstart,
                        rodata_start, rodata_end)) < 0)
                goto fail;

fail:
        if (!IS_ERR(filep))
                filp_close(filep, NULL);

        set_fs(fs);

        return err;
}

static int
dhd_init_static_strs_array(osl_t *osh, dhd_event_log_t *temp, char *str_file, char *map_file)
{
        struct file *filep = NULL;
        mm_segment_t fs;
        char *raw_fmts =  NULL;
        uint32 logstrs_size = 0;
        int error = 0;
        uint32 ramstart = 0;
        uint32 rodata_start = 0;
        uint32 rodata_end = 0;
        uint32 logfilebase = 0;

        error = dhd_read_map(osh, map_file, &ramstart, &rodata_start, &rodata_end);
        if (error != BCME_OK) {
                DHD_ERROR(("readmap Error!! \n"));
                /* don't do event log parsing in actual case */
                if (strstr(str_file, ram_file_str) != NULL) {
                        temp->raw_sstr = NULL;
                } else if (strstr(str_file, rom_file_str) != NULL) {
                        temp->rom_raw_sstr = NULL;
                }
                return error;
        }
        DHD_ERROR(("ramstart: 0x%x, rodata_start: 0x%x, rodata_end:0x%x\n",
                ramstart, rodata_start, rodata_end));

        fs = get_fs();
        set_fs(KERNEL_DS);

        filep = filp_open(str_file, O_RDONLY, 0);
        if (IS_ERR(filep)) {
                DHD_ERROR(("%s: Failed to open the file %s \n",  __FUNCTION__, str_file));
                goto fail;
        }

        if (TRUE) {
                /* Full file size is huge. Just read required part */
                logstrs_size = rodata_end - rodata_start;
                logfilebase = rodata_start - ramstart;
        }

        if (logstrs_size == 0) {
                DHD_ERROR(("%s: return as logstrs_size is 0\n", __FUNCTION__));
                goto fail1;
        }

        raw_fmts = MALLOC(osh, logstrs_size);
        if (raw_fmts == NULL) {
                DHD_ERROR(("%s: Failed to allocate raw_fmts memory \n", __FUNCTION__));
                goto fail;
        }

        if (TRUE) {
                error = generic_file_llseek(filep, logfilebase, SEEK_SET);
                if (error < 0) {
                        DHD_ERROR(("%s: %s llseek failed %d \n", __FUNCTION__, str_file, error));
                        goto fail;
                }
        }

        error = vfs_read(filep, raw_fmts, logstrs_size, (&filep->f_pos));
        if (error != logstrs_size) {
                DHD_ERROR(("%s: %s read failed %d \n", __FUNCTION__, str_file, error));
                goto fail;
        }

        if (strstr(str_file, ram_file_str) != NULL) {
                temp->raw_sstr = raw_fmts;
                temp->raw_sstr_size = logstrs_size;
                temp->rodata_start = rodata_start;
                temp->rodata_end = rodata_end;
        } else if (strstr(str_file, rom_file_str) != NULL) {
                temp->rom_raw_sstr = raw_fmts;
                temp->rom_raw_sstr_size = logstrs_size;
                temp->rom_rodata_start = rodata_start;
                temp->rom_rodata_end = rodata_end;
        }

        filp_close(filep, NULL);
        set_fs(fs);

        return BCME_OK;

fail:
        if (raw_fmts) {
                MFREE(osh, raw_fmts, logstrs_size);
                raw_fmts = NULL;
        }

fail1:
        if (!IS_ERR(filep))
                filp_close(filep, NULL);

        set_fs(fs);

        if (strstr(str_file, ram_file_str) != NULL) {
                temp->raw_sstr = NULL;
        } else if (strstr(str_file, rom_file_str) != NULL) {
                temp->rom_raw_sstr = NULL;
        }

        return error;
} /* dhd_init_static_strs_array */

static int
dhd_trace_open_proc(struct inode *inode, struct file *file)
{
        return single_open(file, 0, NULL);
}

ssize_t
dhd_trace_read_proc(struct file *file, char __user *buffer, size_t tt, loff_t *loff)
{
        trace_buf_info_t *trace_buf_info;
        int ret = BCME_ERROR;

        ASSERT(g_dhd_pub);
        mutex_lock(&g_dhd_pub->dhd_trace_lock);
        trace_buf_info = (trace_buf_info_t *)MALLOC(g_dhd_pub->osh,
                        sizeof(trace_buf_info_t));
        if (trace_buf_info) {
                dhd_get_read_buf_ptr(g_dhd_pub, trace_buf_info);
                if (copy_to_user(buffer, (void*)trace_buf_info->buf, MIN(trace_buf_info->size, tt)))
                {
                        ret = -EFAULT;
                        goto exit;
                }
                if (trace_buf_info->availability == BUF_NOT_AVAILABLE)
                        ret = BUF_NOT_AVAILABLE;
                else
                        ret = trace_buf_info->size;
        } else
                DHD_ERROR(("Memory allocation Failed\n"));

exit:
        if (trace_buf_info) {
                MFREE(g_dhd_pub->osh, trace_buf_info, sizeof(trace_buf_info_t));
        }
        mutex_unlock(&g_dhd_pub->dhd_trace_lock);
        return ret;
}
#endif /* SHOW_LOGTRACE */

#ifdef DHD_ERPOM
uint enable_erpom = 0;
module_param(enable_erpom, int, 0);

int
dhd_wlan_power_off_handler(void *handler, unsigned char reason)
{
        dhd_pub_t *dhdp = (dhd_pub_t *)handler;
        bool dongle_isolation = dhdp->dongle_isolation;

        DHD_ERROR(("%s: WLAN DHD cleanup reason: %d\n", __FUNCTION__, reason));

        if ((reason == BY_BT_DUE_TO_BT) || (reason == BY_BT_DUE_TO_WLAN)) {
#if defined(DHD_FW_COREDUMP)
                /* save core dump to a file */
                if (dhdp->memdump_enabled) {
#ifdef DHD_SSSR_DUMP
                        if (dhdp->sssr_inited) {
                                dhdp->info->no_wq_sssrdump = TRUE;
                                dhd_bus_sssr_dump(dhdp);
                                dhdp->info->no_wq_sssrdump = FALSE;
                        }
#endif /* DHD_SSSR_DUMP */
                        dhdp->memdump_type = DUMP_TYPE_DUE_TO_BT;
                        dhd_bus_mem_dump(dhdp);
                }
#endif /* DHD_FW_COREDUMP */
        }

        /* pause data on all the interfaces */
        dhd_bus_stop_queue(dhdp->bus);

        /* Devreset function will perform FLR again, to avoid it set dongle_isolation */
        dhdp->dongle_isolation = TRUE;
        dhd_bus_devreset(dhdp, 1); /* DHD structure cleanup */
        dhdp->dongle_isolation = dongle_isolation; /* Restore the old value */
        return 0;
}

int
dhd_wlan_power_on_handler(void *handler, unsigned char reason)
{
        dhd_pub_t *dhdp = (dhd_pub_t *)handler;
        bool dongle_isolation = dhdp->dongle_isolation;

        DHD_ERROR(("%s: WLAN DHD re-init reason: %d\n", __FUNCTION__, reason));
        /* Devreset function will perform FLR again, to avoid it set dongle_isolation */
        dhdp->dongle_isolation = TRUE;
        dhd_bus_devreset(dhdp, 0); /* DHD structure re-init */
        dhdp->dongle_isolation = dongle_isolation; /* Restore the old value */
        /* resume data on all the interfaces */
        dhd_bus_start_queue(dhdp->bus);
        return 0;

}

#endif /* DHD_ERPOM */
/** Called once for each hardware (dongle) instance that this DHD manages */
dhd_pub_t *
dhd_attach(osl_t *osh, struct dhd_bus *bus, uint bus_hdrlen)
{
        dhd_info_t *dhd = NULL;
        struct net_device *net = NULL;
        char if_name[IFNAMSIZ] = {'\0'};
        uint32 bus_type = -1;
        uint32 bus_num = -1;
        uint32 slot_num = -1;
#ifdef SHOW_LOGTRACE
        int ret;
#endif /* SHOW_LOGTRACE */
#ifdef DHD_ERPOM
        pom_func_handler_t *pom_handler;
#endif /* DHD_ERPOM */
        wifi_adapter_info_t *adapter = NULL;

        dhd_attach_states_t dhd_state = DHD_ATTACH_STATE_INIT;
        DHD_TRACE(("%s: Enter\n", __FUNCTION__));

#ifdef PCIE_FULL_DONGLE
        ASSERT(sizeof(dhd_pkttag_fd_t) <= OSL_PKTTAG_SZ);
        ASSERT(sizeof(dhd_pkttag_fr_t) <= OSL_PKTTAG_SZ);
#endif /* PCIE_FULL_DONGLE */

        /* will implement get_ids for DBUS later */
#if defined(BCMSDIO)
        dhd_bus_get_ids(bus, &bus_type, &bus_num, &slot_num);
#endif // endif
        adapter = dhd_wifi_platform_get_adapter(bus_type, bus_num, slot_num);

        /* Allocate primary dhd_info */
        dhd = wifi_platform_prealloc(adapter, DHD_PREALLOC_DHD_INFO, sizeof(dhd_info_t));
        if (dhd == NULL) {
                dhd = MALLOC(osh, sizeof(dhd_info_t));
                if (dhd == NULL) {
                        DHD_ERROR(("%s: OOM - alloc dhd_info\n", __FUNCTION__));
                        goto dhd_null_flag;
                }
        }
        memset(dhd, 0, sizeof(dhd_info_t));
        dhd_state |= DHD_ATTACH_STATE_DHD_ALLOC;

        dhd->unit = dhd_found + instance_base; /* do not increment dhd_found, yet */

        dhd->pub.osh = osh;
#ifdef DUMP_IOCTL_IOV_LIST
        dll_init(&(dhd->pub.dump_iovlist_head));
#endif /* DUMP_IOCTL_IOV_LIST */
        dhd->adapter = adapter;
#ifdef BT_OVER_SDIO
        dhd->pub.is_bt_recovery_required = FALSE;
        mutex_init(&dhd->bus_user_lock);
#endif /* BT_OVER_SDIO */

#ifdef DHD_DEBUG
        dll_init(&(dhd->pub.mw_list_head));
#endif /* DHD_DEBUG */

#ifdef GET_CUSTOM_MAC_ENABLE
        wifi_platform_get_mac_addr(dhd->adapter, dhd->pub.mac.octet);
#endif /* GET_CUSTOM_MAC_ENABLE */
#ifdef CUSTOM_FORCE_NODFS_FLAG
        dhd->pub.dhd_cflags |= WLAN_PLAT_NODFS_FLAG;
        dhd->pub.force_country_change = TRUE;
#endif /* CUSTOM_FORCE_NODFS_FLAG */
#ifdef CUSTOM_COUNTRY_CODE
        get_customized_country_code(dhd->adapter,
                dhd->pub.dhd_cspec.country_abbrev, &dhd->pub.dhd_cspec,
                dhd->pub.dhd_cflags);
#endif /* CUSTOM_COUNTRY_CODE */
        dhd->thr_dpc_ctl.thr_pid = DHD_PID_KT_TL_INVALID;
        dhd->thr_wdt_ctl.thr_pid = DHD_PID_KT_INVALID;
#ifdef DHD_WET
        dhd->pub.wet_info = dhd_get_wet_info(&dhd->pub);
#endif /* DHD_WET */
        /* Initialize thread based operation and lock */
        sema_init(&dhd->sdsem, 1);

        /* Some DHD modules (e.g. cfg80211) configures operation mode based on firmware name.
         * This is indeed a hack but we have to make it work properly before we have a better
         * solution
         */
        dhd_update_fw_nv_path(dhd);
        dhd->pub.pcie_txs_metadata_enable = pcie_txs_metadata_enable;

        /* Link to info module */
        dhd->pub.info = dhd;

        /* Link to bus module */
        dhd->pub.bus = bus;
        dhd->pub.hdrlen = bus_hdrlen;

        /* Set network interface name if it was provided as module parameter */
        if (iface_name[0]) {
                int len;
                char ch;
                strncpy(if_name, iface_name, IFNAMSIZ);
                if_name[IFNAMSIZ - 1] = 0;
                len = strlen(if_name);
                ch = if_name[len - 1];
                if ((ch > '9' || ch < '0') && (len < IFNAMSIZ - 2))
                        strncat(if_name, "%d", 2);
        }

        /* Passing NULL to dngl_name to ensure host gets if_name in dngl_name member */
        net = dhd_allocate_if(&dhd->pub, 0, if_name, NULL, 0, TRUE, NULL);
        if (net == NULL) {
                goto fail;
        }
        mutex_init(&dhd->pub.ndev_op_sync);
#if defined(ARGOS_CPU_SCHEDULER) && defined(ARGOS_RPS_CPU_CTL)
        /* Init ARGOS notifier data */
        argos_wifi.notifier_call = NULL;
        argos_p2p.notifier_call = NULL;
#endif /* ARGOS_CPU_SCHEDULER && ARGOS_RPS_CPU_CTL */

        dhd_state |= DHD_ATTACH_STATE_ADD_IF;
#ifdef DHD_L2_FILTER
        /* initialize the l2_filter_cnt */
        dhd->pub.l2_filter_cnt = 0;
#endif // endif
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31))
        net->open = NULL;
#else
        net->netdev_ops = NULL;
#endif // endif

        mutex_init(&dhd->dhd_iovar_mutex);
        sema_init(&dhd->proto_sem, 1);
#ifdef DHD_ULP
        if (!(dhd_ulp_init(osh, &dhd->pub)))
                goto fail;
#endif /* DHD_ULP */

#if defined(DHD_HANG_SEND_UP_TEST)
        dhd->pub.req_hang_type = 0;
#endif /* DHD_HANG_SEND_UP_TEST */

#ifdef PROP_TXSTATUS
        spin_lock_init(&dhd->wlfc_spinlock);

        dhd->pub.skip_fc = dhd_wlfc_skip_fc;
        dhd->pub.plat_init = dhd_wlfc_plat_init;
        dhd->pub.plat_deinit = dhd_wlfc_plat_deinit;

#ifdef DHD_WLFC_THREAD
        init_waitqueue_head(&dhd->pub.wlfc_wqhead);
        dhd->pub.wlfc_thread = kthread_create(dhd_wlfc_transfer_packets, &dhd->pub, "wlfc-thread");
        if (IS_ERR(dhd->pub.wlfc_thread)) {
                DHD_ERROR(("create wlfc thread failed\n"));
                goto fail;
        } else {
                wake_up_process(dhd->pub.wlfc_thread);
        }
#endif /* DHD_WLFC_THREAD */
#endif /* PROP_TXSTATUS */

        /* Initialize other structure content */
        init_waitqueue_head(&dhd->ioctl_resp_wait);
        init_waitqueue_head(&dhd->d3ack_wait);
        init_waitqueue_head(&dhd->ctrl_wait);
        init_waitqueue_head(&dhd->dhd_bus_busy_state_wait);
        init_waitqueue_head(&dhd->dmaxfer_wait);
        init_waitqueue_head(&dhd->pub.tx_completion_wait);
        dhd->pub.dhd_bus_busy_state = 0;

        /* Initialize the spinlocks */
        spin_lock_init(&dhd->sdlock);
        spin_lock_init(&dhd->txqlock);
        spin_lock_init(&dhd->dhd_lock);
        spin_lock_init(&dhd->rxf_lock);
#ifdef WLTDLS
        spin_lock_init(&dhd->pub.tdls_lock);
#endif /* WLTDLS */
#if defined(RXFRAME_THREAD)
        dhd->rxthread_enabled = TRUE;
#endif /* defined(RXFRAME_THREAD) */

#ifdef DHDTCPACK_SUPPRESS
        spin_lock_init(&dhd->tcpack_lock);
#endif /* DHDTCPACK_SUPPRESS */

        /* Initialize Wakelock stuff */
        spin_lock_init(&dhd->wakelock_spinlock);
        spin_lock_init(&dhd->wakelock_evt_spinlock);
        DHD_OS_WAKE_LOCK_INIT(dhd);
        dhd->wakelock_counter = 0;
        /* wakelocks prevent a system from going into a low power state */
#ifdef CONFIG_HAS_WAKELOCK
        wake_lock_init(&dhd->wl_wdwake, WAKE_LOCK_SUSPEND, "wlan_wd_wake");
#endif /* CONFIG_HAS_WAKELOCK */

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
        mutex_init(&dhd->dhd_net_if_mutex);
        mutex_init(&dhd->dhd_suspend_mutex);
#if defined(PKT_FILTER_SUPPORT) && defined(APF)
        mutex_init(&dhd->dhd_apf_mutex);
#endif /* PKT_FILTER_SUPPORT && APF */
#endif // endif
        dhd_state |= DHD_ATTACH_STATE_WAKELOCKS_INIT;

        /* Attach and link in the protocol */
        if (dhd_prot_attach(&dhd->pub) != 0) {
                DHD_ERROR(("dhd_prot_attach failed\n"));
                goto fail;
        }
        dhd_state |= DHD_ATTACH_STATE_PROT_ATTACH;

#ifdef WL_CFG80211
        spin_lock_init(&dhd->pub.up_lock);
        /* Attach and link in the cfg80211 */
        if (unlikely(wl_cfg80211_attach(net, &dhd->pub))) {
                DHD_ERROR(("wl_cfg80211_attach failed\n"));
                goto fail;
        }

        dhd_monitor_init(&dhd->pub);
        dhd_state |= DHD_ATTACH_STATE_CFG80211;
#endif // endif

#if defined(WL_WIRELESS_EXT)
        /* Attach and link in the iw */
        if (!(dhd_state &  DHD_ATTACH_STATE_CFG80211)) {
                if (wl_iw_attach(net, (void *)&dhd->pub) != 0) {
                DHD_ERROR(("wl_iw_attach failed\n"));
                goto fail;
        }
        dhd_state |= DHD_ATTACH_STATE_WL_ATTACH;
        }
#endif /* defined(WL_WIRELESS_EXT) */

#ifdef SHOW_LOGTRACE
        ret = dhd_init_logstrs_array(osh, &dhd->event_data);
        if (ret == BCME_OK) {
                dhd_init_static_strs_array(osh, &dhd->event_data, st_str_file_path, map_file_path);
                dhd_init_static_strs_array(osh, &dhd->event_data, rom_st_str_file_path,
                        rom_map_file_path);
                dhd_state |= DHD_ATTACH_LOGTRACE_INIT;
        }
#endif /* SHOW_LOGTRACE */

#ifdef DEBUGABILITY
        /* attach debug if support */
        if (dhd_os_dbg_attach(&dhd->pub)) {
                DHD_ERROR(("%s debug module attach failed\n", __FUNCTION__));
                goto fail;
        }

#if defined(SHOW_LOGTRACE) && defined(DBG_RING_LOG_INIT_DEFAULT)
        /* enable verbose ring to support dump_trace_buf */
        dhd_os_start_logging(&dhd->pub, FW_VERBOSE_RING_NAME, 3, 0, 0, 0);
#endif /* SHOW_LOGTRACE */

#ifdef DBG_PKT_MON
        dhd->pub.dbg->pkt_mon_lock = dhd_os_spin_lock_init(dhd->pub.osh);
#ifdef DBG_PKT_MON_INIT_DEFAULT
        dhd_os_dbg_attach_pkt_monitor(&dhd->pub);
#endif /* DBG_PKT_MON_INIT_DEFAULT */
#endif /* DBG_PKT_MON */
#endif /* DEBUGABILITY */

#ifdef DHD_LOG_DUMP
        dhd_log_dump_init(&dhd->pub);
#endif /* DHD_LOG_DUMP */

#ifdef DHD_PKT_LOGGING
        dhd_os_attach_pktlog(&dhd->pub);
#endif /* DHD_PKT_LOGGING */
#ifdef WL_CFGVENDOR_SEND_HANG_EVENT
        dhd->pub.hang_info = MALLOCZ(osh, VENDOR_SEND_HANG_EXT_INFO_LEN);
        if (dhd->pub.hang_info == NULL) {
                DHD_ERROR(("%s: alloc hang_info failed\n", __FUNCTION__));
        }
#endif /* WL_CFGVENDOR_SEND_HANG_EVENT */
        if (dhd_sta_pool_init(&dhd->pub, DHD_MAX_STA) != BCME_OK) {
                DHD_ERROR(("%s: Initializing %u sta\n", __FUNCTION__, DHD_MAX_STA));
                goto fail;
        }

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
        dhd->tx_wq = alloc_workqueue("bcmdhd-tx-wq", WQ_HIGHPRI | WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
        if (!dhd->tx_wq) {
                DHD_ERROR(("%s: alloc_workqueue(bcmdhd-tx-wq) failed\n", __FUNCTION__));
                goto fail;
        }
        dhd->rx_wq = alloc_workqueue("bcmdhd-rx-wq", WQ_HIGHPRI | WQ_UNBOUND | WQ_MEM_RECLAIM, 1);
        if (!dhd->rx_wq) {
                DHD_ERROR(("%s: alloc_workqueue(bcmdhd-rx-wq) failed\n", __FUNCTION__));
                destroy_workqueue(dhd->tx_wq);
                dhd->tx_wq = NULL;
                goto fail;
        }
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */

        /* Set up the watchdog timer */
        init_timer(&dhd->timer);
        dhd->timer.data = (ulong)dhd;
        dhd->timer.function = dhd_watchdog;
        dhd->default_wd_interval = dhd_watchdog_ms;

        if (dhd_watchdog_prio >= 0) {
                /* Initialize watchdog thread */
                PROC_START(dhd_watchdog_thread, dhd, &dhd->thr_wdt_ctl, 0, "dhd_watchdog_thread");
                if (dhd->thr_wdt_ctl.thr_pid < 0) {
                        goto fail;
                }

        } else {
                dhd->thr_wdt_ctl.thr_pid = -1;
        }

#ifdef DHD_PCIE_RUNTIMEPM
        /* Setup up the runtime PM Idlecount timer */
        init_timer(&dhd->rpm_timer);
        dhd->rpm_timer.data = (ulong)dhd;
        dhd->rpm_timer.function = dhd_runtimepm;
        dhd->rpm_timer_valid = FALSE;

        dhd->thr_rpm_ctl.thr_pid = DHD_PID_KT_INVALID;
        PROC_START(dhd_rpm_state_thread, dhd, &dhd->thr_rpm_ctl, 0, "dhd_rpm_state_thread");
        if (dhd->thr_rpm_ctl.thr_pid < 0) {
                goto fail;
        }
#endif /* DHD_PCIE_RUNTIMEPM */

#ifdef SHOW_LOGTRACE
        skb_queue_head_init(&dhd->evt_trace_queue);
        if (proc_create("dhd_trace", S_IRUSR, NULL, &proc_file_fops) == NULL)
                DHD_ERROR(("Failed to create /proc/dhd_trace procfs interface\n"));
        mutex_init(&dhd->pub.dhd_trace_lock);
#endif /* SHOW_LOGTRACE */

        /* Set up the bottom half handler */
        if (dhd_dpc_prio >= 0) {
                /* Initialize DPC thread */
                PROC_START(dhd_dpc_thread, dhd, &dhd->thr_dpc_ctl, 0, "dhd_dpc");
                if (dhd->thr_dpc_ctl.thr_pid < 0) {
                        goto fail;
                }
        } else {
#if defined(ARGOS_CPU_SCHEDULER) && defined(ARGOS_DPC_TASKLET_CTL) && \
        !defined(DHD_LB_IRQSET)
                if (!zalloc_cpumask_var(&dhd->pub.default_cpu_mask, GFP_KERNEL)) {
                        DHD_ERROR(("dpc tasklet, zalloc_cpumask_var error\n"));
                        dhd->pub.affinity_isdpc = FALSE;
                } else {
                        if (!zalloc_cpumask_var(&dhd->pub.dpc_affinity_cpu_mask, GFP_KERNEL)) {
                                DHD_ERROR(("dpc thread, dpc_affinity_cpu_mask  error\n"));
                                free_cpumask_var(dhd->pub.default_cpu_mask);
                                dhd->pub.affinity_isdpc = FALSE;
                        } else {
                                unsigned int irq = -1;
#ifdef BCMPCIE
                                if (dhdpcie_get_pcieirq(bus, &irq)) {
                                        DHD_ERROR(("%s : Can't get interrupt number\n",
                                                __FUNCTION__));
                                        goto fail;
                                }
#endif /* BCMPCIE */
#ifdef BCMSDIO
                                irq = adapter->irq_num;
#endif /* BCMSDIO */

                                cpumask_copy(dhd->pub.default_cpu_mask, &hmp_slow_cpu_mask);
                                cpumask_or(dhd->pub.dpc_affinity_cpu_mask,
                                        dhd->pub.dpc_affinity_cpu_mask,
                                        cpumask_of(TASKLET_CPUCORE));

                                set_irq_cpucore(irq, dhd->pub.default_cpu_mask,
                                        dhd->pub.dpc_affinity_cpu_mask);
                                dhd->pub.affinity_isdpc = TRUE;
                        }
                }
#endif /* ARGOS_CPU_SCHEDULER && ARGOS_DPC_TASKLET_CTL && !DHD_LB_IRQSET */
                /*  use tasklet for dpc */
                tasklet_init(&dhd->tasklet, dhd_dpc, (ulong)dhd);
                dhd->thr_dpc_ctl.thr_pid = -1;
        }

        if (dhd->rxthread_enabled) {
                bzero(&dhd->pub.skbbuf[0], sizeof(void *) * MAXSKBPEND);
                /* Initialize RXF thread */
                PROC_START(dhd_rxf_thread, dhd, &dhd->thr_rxf_ctl, 0, "dhd_rxf");
                if (dhd->thr_rxf_ctl.thr_pid < 0) {
                        goto fail;
                }
        }

        dhd_state |= DHD_ATTACH_STATE_THREADS_CREATED;

#if defined(CONFIG_PM_SLEEP)
        if (!dhd_pm_notifier_registered) {
                dhd_pm_notifier_registered = TRUE;
                dhd->pm_notifier.notifier_call = dhd_pm_callback;
                dhd->pm_notifier.priority = 10;
                register_pm_notifier(&dhd->pm_notifier);
        }

#endif /* CONFIG_PM_SLEEP */

#if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND)
        dhd->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 20;
        dhd->early_suspend.suspend = dhd_early_suspend;
        dhd->early_suspend.resume = dhd_late_resume;
        register_early_suspend(&dhd->early_suspend);
        dhd_state |= DHD_ATTACH_STATE_EARLYSUSPEND_DONE;
#endif /* CONFIG_HAS_EARLYSUSPEND && DHD_USE_EARLYSUSPEND */

#ifdef ARP_OFFLOAD_SUPPORT
        dhd->pend_ipaddr = 0;
        if (!dhd_inetaddr_notifier_registered) {
                dhd_inetaddr_notifier_registered = TRUE;
                register_inetaddr_notifier(&dhd_inetaddr_notifier);
        }
#endif /* ARP_OFFLOAD_SUPPORT */

#if defined(CONFIG_IPV6) && defined(IPV6_NDO_SUPPORT)
        if (!dhd_inet6addr_notifier_registered) {
                dhd_inet6addr_notifier_registered = TRUE;
                register_inet6addr_notifier(&dhd_inet6addr_notifier);
        }
#endif /* CONFIG_IPV6 && IPV6_NDO_SUPPORT */
        dhd->dhd_deferred_wq = dhd_deferred_work_init((void *)dhd);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
        INIT_WORK(&dhd->dhd_hang_process_work, dhd_hang_process);
#endif // endif
#ifdef DEBUG_CPU_FREQ
        dhd->new_freq = alloc_percpu(int);
        dhd->freq_trans.notifier_call = dhd_cpufreq_notifier;
        cpufreq_register_notifier(&dhd->freq_trans, CPUFREQ_TRANSITION_NOTIFIER);
#endif // endif
#ifdef DHDTCPACK_SUPPRESS
#ifdef BCMSDIO
        dhd_tcpack_suppress_set(&dhd->pub, TCPACK_SUP_DELAYTX);
#elif defined(BCMPCIE)
        dhd_tcpack_suppress_set(&dhd->pub, TCPACK_SUP_HOLD);
#else
        dhd_tcpack_suppress_set(&dhd->pub, TCPACK_SUP_OFF);
#endif /* BCMSDIO */
#endif /* DHDTCPACK_SUPPRESS */

#if defined(BCM_DNGL_EMBEDIMAGE) || defined(BCM_REQUEST_FW)
#endif /* defined(BCM_DNGL_EMBEDIMAGE) || defined(BCM_REQUEST_FW) */

#ifdef DHD_DEBUG_PAGEALLOC
        register_page_corrupt_cb(dhd_page_corrupt_cb, &dhd->pub);
#endif /* DHD_DEBUG_PAGEALLOC */

#if defined(DHD_LB)

        dhd_lb_set_default_cpus(dhd);

        /* Initialize the CPU Masks */
        if (dhd_cpumasks_init(dhd) == 0) {
                /* Now we have the current CPU maps, run through candidacy */
                dhd_select_cpu_candidacy(dhd);
                /*
                * If we are able to initialize CPU masks, lets register to the
                * CPU Hotplug framework to change the CPU for each job dynamically
                * using candidacy algorithm.
                */
                dhd->cpu_notifier.notifier_call = dhd_cpu_callback;
                register_hotcpu_notifier(&dhd->cpu_notifier); /* Register a callback */
        } else {
                /*
                * We are unable to initialize CPU masks, so candidacy algorithm
                * won't run, but still Load Balancing will be honoured based
                * on the CPUs allocated for a given job statically during init
                */
                dhd->cpu_notifier.notifier_call = NULL;
                DHD_ERROR(("%s():dhd_cpumasks_init failed CPUs for JOB would be static\n",
                        __FUNCTION__));
        }

#ifdef DHD_LB_TXP
#ifdef DHD_LB_TXP_DEFAULT_ENAB
        /* Trun ON the feature by default */
        atomic_set(&dhd->lb_txp_active, 1);
#else
        /* Trun OFF the feature by default */
        atomic_set(&dhd->lb_txp_active, 0);
#endif /* DHD_LB_TXP_DEFAULT_ENAB */
#endif /* DHD_LB_TXP */

        DHD_LB_STATS_INIT(&dhd->pub);

        /* Initialize the Load Balancing Tasklets and Napi object */
#if defined(DHD_LB_TXC)
        tasklet_init(&dhd->tx_compl_tasklet,
                dhd_lb_tx_compl_handler, (ulong)(&dhd->pub));
        INIT_WORK(&dhd->tx_compl_dispatcher_work, dhd_tx_compl_dispatcher_fn);
        DHD_INFO(("%s load balance init tx_compl_tasklet\n", __FUNCTION__));
#endif /* DHD_LB_TXC */

#if defined(DHD_LB_RXC)
        tasklet_init(&dhd->rx_compl_tasklet,
                dhd_lb_rx_compl_handler, (ulong)(&dhd->pub));
        INIT_WORK(&dhd->rx_compl_dispatcher_work, dhd_rx_compl_dispatcher_fn);
        DHD_INFO(("%s load balance init rx_compl_tasklet\n", __FUNCTION__));
#endif /* DHD_LB_RXC */

#if defined(DHD_LB_RXP)
        __skb_queue_head_init(&dhd->rx_pend_queue);
        skb_queue_head_init(&dhd->rx_napi_queue);
        /* Initialize the work that dispatches NAPI job to a given core */
        INIT_WORK(&dhd->rx_napi_dispatcher_work, dhd_rx_napi_dispatcher_fn);
        DHD_INFO(("%s load balance init rx_napi_queue\n", __FUNCTION__));
#endif /* DHD_LB_RXP */

#if defined(DHD_LB_TXP)
        INIT_WORK(&dhd->tx_dispatcher_work, dhd_tx_dispatcher_work);
        skb_queue_head_init(&dhd->tx_pend_queue);
        /* Initialize the work that dispatches TX job to a given core */
        tasklet_init(&dhd->tx_tasklet,
                dhd_lb_tx_handler, (ulong)(dhd));
        DHD_INFO(("%s load balance init tx_pend_queue\n", __FUNCTION__));
#endif /* DHD_LB_TXP */

        dhd_state |= DHD_ATTACH_STATE_LB_ATTACH_DONE;
#endif /* DHD_LB */

#if defined(BCMPCIE)
        dhd->pub.extended_trap_data = MALLOCZ(osh, BCMPCIE_EXT_TRAP_DATA_MAXLEN);
        if (dhd->pub.extended_trap_data == NULL) {
                DHD_ERROR(("%s: Failed to alloc extended_trap_data\n", __FUNCTION__));
        }
#endif /* BCMPCIE && ETD */

#ifdef SHOW_LOGTRACE
        INIT_DELAYED_WORK(&dhd->event_log_dispatcher_work, dhd_event_logtrace_process);
#endif /* SHOW_LOGTRACE */

        DHD_INFO(("%s: sssr mempool init\n", __FUNCTION__));
        DHD_SSSR_MEMPOOL_INIT(&dhd->pub);

        (void)dhd_sysfs_init(dhd);

#ifdef WL_NATOE
        /* Open Netlink socket for NF_CONNTRACK notifications */
        dhd->pub.nfct = dhd_ct_open(&dhd->pub, NFNL_SUBSYS_CTNETLINK | NFNL_SUBSYS_CTNETLINK_EXP,
                        CT_ALL);
#endif /* WL_NATOE */

        dhd_state |= DHD_ATTACH_STATE_DONE;
        dhd->dhd_state = dhd_state;

        dhd_found++;

        g_dhd_pub = &dhd->pub;

#ifdef DHD_DUMP_MNGR
        dhd->pub.dump_file_manage =
                (dhd_dump_file_manage_t *)MALLOCZ(dhd->pub.osh, sizeof(dhd_dump_file_manage_t));
        if (unlikely(!dhd->pub.dump_file_manage)) {
                DHD_ERROR(("%s(): could not allocate memory for - "
                                        "dhd_dump_file_manage_t\n", __FUNCTION__));
        }
#endif /* DHD_DUMP_MNGR */
#ifdef DHD_FW_COREDUMP
        /* Set memdump default values */
#ifdef CUSTOMER_HW4_DEBUG
        dhd->pub.memdump_enabled = DUMP_DISABLED;
#else
        dhd->pub.memdump_enabled = DUMP_MEMFILE_BUGON;
#endif /* CUSTOMER_HW4_DEBUG */
        /* Check the memdump capability */
        dhd_get_memdump_info(&dhd->pub);
#endif /* DHD_FW_COREDUMP */

#ifdef DHD_ERPOM
        if (enable_erpom) {
                pom_handler = &dhd->pub.pom_wlan_handler;
                pom_handler->func_id = WLAN_FUNC_ID;
                pom_handler->handler = (void *)g_dhd_pub;
                pom_handler->power_off = dhd_wlan_power_off_handler;
                pom_handler->power_on = dhd_wlan_power_on_handler;

                dhd->pub.pom_func_register = NULL;
                dhd->pub.pom_func_deregister = NULL;
                dhd->pub.pom_toggle_reg_on = NULL;

                dhd->pub.pom_func_register = symbol_get(pom_func_register);
                dhd->pub.pom_func_deregister = symbol_get(pom_func_deregister);
                dhd->pub.pom_toggle_reg_on = symbol_get(pom_toggle_reg_on);

                symbol_put(pom_func_register);
                symbol_put(pom_func_deregister);
                symbol_put(pom_toggle_reg_on);

                if (!dhd->pub.pom_func_register ||
                        !dhd->pub.pom_func_deregister ||
                        !dhd->pub.pom_toggle_reg_on) {
                        DHD_ERROR(("%s, enable_erpom enabled through module parameter but "
                                "POM is not loaded\n", __FUNCTION__));
                        ASSERT(0);
                        goto fail;
                }
                dhd->pub.pom_func_register(pom_handler);
                dhd->pub.enable_erpom = TRUE;

        }
#endif /* DHD_ERPOM */
        return &dhd->pub;

fail:
        if (dhd_state >= DHD_ATTACH_STATE_DHD_ALLOC) {
                DHD_TRACE(("%s: Calling dhd_detach dhd_state 0x%x &dhd->pub %p\n",
                        __FUNCTION__, dhd_state, &dhd->pub));
                dhd->dhd_state = dhd_state;
                dhd_detach(&dhd->pub);
                dhd_free(&dhd->pub);
        }

dhd_null_flag:
        return NULL;
}

int dhd_get_fw_mode(dhd_info_t *dhdinfo)
{
        if (strstr(dhdinfo->fw_path, "_apsta") != NULL)
                return DHD_FLAG_HOSTAP_MODE;
        if (strstr(dhdinfo->fw_path, "_p2p") != NULL)
                return DHD_FLAG_P2P_MODE;
        if (strstr(dhdinfo->fw_path, "_ibss") != NULL)
                return DHD_FLAG_IBSS_MODE;
        if (strstr(dhdinfo->fw_path, "_mfg") != NULL)
                return DHD_FLAG_MFG_MODE;

        return DHD_FLAG_STA_MODE;
}

int dhd_bus_get_fw_mode(dhd_pub_t *dhdp)
{
        return dhd_get_fw_mode(dhdp->info);
}

extern char * nvram_get(const char *name);
bool dhd_update_fw_nv_path(dhd_info_t *dhdinfo)
{
        int fw_len;
        int nv_len;
        const char *fw = NULL;
        const char *nv = NULL;
#ifdef DHD_UCODE_DOWNLOAD
        int uc_len;
        const char *uc = NULL;
#endif /* DHD_UCODE_DOWNLOAD */
        wifi_adapter_info_t *adapter = dhdinfo->adapter;
        int fw_path_len = sizeof(dhdinfo->fw_path);
        int nv_path_len = sizeof(dhdinfo->nv_path);

        /* Update firmware and nvram path. The path may be from adapter info or module parameter
         * The path from adapter info is used for initialization only (as it won't change).
         *
         * The firmware_path/nvram_path module parameter may be changed by the system at run
         * time. When it changes we need to copy it to dhdinfo->fw_path. Also Android private
         * command may change dhdinfo->fw_path. As such we need to clear the path info in
         * module parameter after it is copied. We won't update the path until the module parameter
         * is changed again (first character is not '\0')
         */

        /* set default firmware and nvram path for built-in type driver */
        if (!dhd_download_fw_on_driverload) {
#ifdef CONFIG_BCMDHD_FW_PATH
                fw = VENDOR_PATH CONFIG_BCMDHD_FW_PATH;
#endif /* CONFIG_BCMDHD_FW_PATH */
#ifdef CONFIG_BCMDHD_NVRAM_PATH
                nv = VENDOR_PATH CONFIG_BCMDHD_NVRAM_PATH;
#endif /* CONFIG_BCMDHD_NVRAM_PATH */
        }

        /* check if we need to initialize the path */
        if (dhdinfo->fw_path[0] == '\0') {
                if (adapter && adapter->fw_path && adapter->fw_path[0] != '\0')
                        fw = adapter->fw_path;
        }
        if (dhdinfo->nv_path[0] == '\0') {
                if (adapter && adapter->nv_path && adapter->nv_path[0] != '\0')
                        nv = adapter->nv_path;
        }

        /* Use module parameter if it is valid, EVEN IF the path has not been initialized
         *
         * TODO: need a solution for multi-chip, can't use the same firmware for all chips
         */
        if (firmware_path[0] != '\0')
                fw = firmware_path;

        if (nvram_path[0] != '\0')
                nv = nvram_path;

#ifdef DHD_UCODE_DOWNLOAD
        if (ucode_path[0] != '\0')
                uc = ucode_path;
#endif /* DHD_UCODE_DOWNLOAD */

        if (fw && fw[0] != '\0') {
                fw_len = strlen(fw);
                if (fw_len >= fw_path_len) {
                        DHD_ERROR(("fw path len exceeds max len of dhdinfo->fw_path\n"));
                        return FALSE;
                }
                strncpy(dhdinfo->fw_path, fw, fw_path_len);
                if (dhdinfo->fw_path[fw_len-1] == '\n')
                       dhdinfo->fw_path[fw_len-1] = '\0';
        }
        if (nv && nv[0] != '\0') {
                nv_len = strlen(nv);
                if (nv_len >= nv_path_len) {
                        DHD_ERROR(("nvram path len exceeds max len of dhdinfo->nv_path\n"));
                        return FALSE;
                }
                memset(dhdinfo->nv_path, 0, nv_path_len);
                strncpy(dhdinfo->nv_path, nv, nv_path_len);
                dhdinfo->nv_path[nv_len] = '\0';
#ifdef DHD_USE_SINGLE_NVRAM_FILE
                /* Remove "_net" or "_mfg" tag from current nvram path */
                {
                        char *nvram_tag = "nvram_";
                        char *ext_tag = ".txt";
                        char *sp_nvram = strnstr(dhdinfo->nv_path, nvram_tag, nv_path_len);
                        bool valid_buf = sp_nvram && ((uint32)(sp_nvram + strlen(nvram_tag) +
                                strlen(ext_tag) - dhdinfo->nv_path) <= nv_path_len);
                        if (valid_buf) {
                                char *sp = sp_nvram + strlen(nvram_tag) - 1;
                                uint32 padding_size = (uint32)(dhdinfo->nv_path +
                                        nv_path_len - sp);
                                memset(sp, 0, padding_size);
                                strncat(dhdinfo->nv_path, ext_tag, strlen(ext_tag));
                                nv_len = strlen(dhdinfo->nv_path);
                                DHD_INFO(("%s: new nvram path = %s\n",
                                        __FUNCTION__, dhdinfo->nv_path));
                        } else if (sp_nvram) {
                                DHD_ERROR(("%s: buffer space for nvram path is not enough\n",
                                        __FUNCTION__));
                                return FALSE;
                        } else {
                                DHD_ERROR(("%s: Couldn't find the nvram tag. current"
                                        " nvram path = %s\n", __FUNCTION__, dhdinfo->nv_path));
                        }
                }
#endif /* DHD_USE_SINGLE_NVRAM_FILE */
                if (dhdinfo->nv_path[nv_len-1] == '\n')
                       dhdinfo->nv_path[nv_len-1] = '\0';
        }
#ifdef DHD_UCODE_DOWNLOAD
        if (uc && uc[0] != '\0') {
                uc_len = strlen(uc);
                if (uc_len >= sizeof(dhdinfo->uc_path)) {
                        DHD_ERROR(("uc path len exceeds max len of dhdinfo->uc_path\n"));
                        return FALSE;
                }
                strncpy(dhdinfo->uc_path, uc, sizeof(dhdinfo->uc_path));
                if (dhdinfo->uc_path[uc_len-1] == '\n')
                       dhdinfo->uc_path[uc_len-1] = '\0';
        }
#endif /* DHD_UCODE_DOWNLOAD */

        /* clear the path in module parameter */
        if (dhd_download_fw_on_driverload) {
                firmware_path[0] = '\0';
                nvram_path[0] = '\0';
        }
#ifdef DHD_UCODE_DOWNLOAD
        ucode_path[0] = '\0';
        DHD_ERROR(("ucode path: %s\n", dhdinfo->uc_path));
#endif /* DHD_UCODE_DOWNLOAD */

        /* fw_path and nv_path are not mandatory for BCMEMBEDIMAGE */
        if (dhdinfo->fw_path[0] == '\0') {
                DHD_ERROR(("firmware path not found\n"));
                return FALSE;
        }
        if (dhdinfo->nv_path[0] == '\0') {
                DHD_ERROR(("nvram path not found\n"));
                return FALSE;
        }

        return TRUE;
}

#if defined(BT_OVER_SDIO)
extern bool dhd_update_btfw_path(dhd_info_t *dhdinfo, char* btfw_path)
{
        int fw_len;
        const char *fw = NULL;
        wifi_adapter_info_t *adapter = dhdinfo->adapter;

        /* Update bt firmware path. The path may be from adapter info or module parameter
         * The path from adapter info is used for initialization only (as it won't change).
         *
         * The btfw_path module parameter may be changed by the system at run
         * time. When it changes we need to copy it to dhdinfo->btfw_path. Also Android private
         * command may change dhdinfo->btfw_path. As such we need to clear the path info in
         * module parameter after it is copied. We won't update the path until the module parameter
         * is changed again (first character is not '\0')
         */

        /* set default firmware and nvram path for built-in type driver */
        if (!dhd_download_fw_on_driverload) {
#ifdef CONFIG_BCMDHD_BTFW_PATH
                fw = CONFIG_BCMDHD_BTFW_PATH;
#endif /* CONFIG_BCMDHD_FW_PATH */
        }

        /* check if we need to initialize the path */
        if (dhdinfo->btfw_path[0] == '\0') {
                if (adapter && adapter->btfw_path && adapter->btfw_path[0] != '\0')
                        fw = adapter->btfw_path;
        }

        /* Use module parameter if it is valid, EVEN IF the path has not been initialized
         */
        if (btfw_path[0] != '\0')
                fw = btfw_path;

        if (fw && fw[0] != '\0') {
                fw_len = strlen(fw);
                if (fw_len >= sizeof(dhdinfo->btfw_path)) {
                        DHD_ERROR(("fw path len exceeds max len of dhdinfo->btfw_path\n"));
                        return FALSE;
                }
                strncpy(dhdinfo->btfw_path, fw, sizeof(dhdinfo->btfw_path));
                if (dhdinfo->btfw_path[fw_len-1] == '\n')
                       dhdinfo->btfw_path[fw_len-1] = '\0';
        }

        /* clear the path in module parameter */
        btfw_path[0] = '\0';

        if (dhdinfo->btfw_path[0] == '\0') {
                DHD_ERROR(("bt firmware path not found\n"));
                return FALSE;
        }

        return TRUE;
}
#endif /* defined (BT_OVER_SDIO) */

#ifdef CUSTOMER_HW4_DEBUG
bool dhd_validate_chipid(dhd_pub_t *dhdp)
{
        uint chipid = dhd_bus_chip_id(dhdp);
        uint config_chipid;

#ifdef BCM4375_CHIP
        config_chipid = BCM4375_CHIP_ID;
#elif defined(BCM4361_CHIP)
        config_chipid = BCM4361_CHIP_ID;
#elif defined(BCM4359_CHIP)
        config_chipid = BCM4359_CHIP_ID;
#elif defined(BCM4358_CHIP)
        config_chipid = BCM4358_CHIP_ID;
#elif defined(BCM4354_CHIP)
        config_chipid = BCM4354_CHIP_ID;
#elif defined(BCM4339_CHIP)
        config_chipid = BCM4339_CHIP_ID;
#elif defined(BCM4335_CHIP)
        config_chipid = BCM4335_CHIP_ID;
#elif defined(BCM43430_CHIP)
        config_chipid = BCM43430_CHIP_ID;
#elif defined(BCM43018_CHIP)
        config_chipid = BCM43018_CHIP_ID;
#elif defined(BCM43455_CHIP) || defined(BCM43456_CHIP)
        config_chipid = BCM4345_CHIP_ID;
#elif defined(BCM43454_CHIP)
        config_chipid = BCM43454_CHIP_ID;
#elif defined(BCM43012_CHIP_)
        config_chipid = BCM43012_CHIP_ID;
#else
        DHD_ERROR(("%s: Unknown chip id, if you use new chipset,"
                " please add CONFIG_BCMXXXX into the Kernel and"
                " BCMXXXX_CHIP definition into the DHD driver\n",
                __FUNCTION__));
        config_chipid = 0;

        return FALSE;
#endif /* BCM4354_CHIP */

#ifdef SUPPORT_MULTIPLE_CHIP_4345X
        if (config_chipid == BCM43454_CHIP_ID || config_chipid == BCM4345_CHIP_ID) {
                return TRUE;
        }
#endif /* SUPPORT_MULTIPLE_CHIP_4345X */
#if defined(BCM4354_CHIP) && defined(SUPPORT_MULTIPLE_REVISION)
        if (chipid == BCM4350_CHIP_ID && config_chipid == BCM4354_CHIP_ID) {
                return TRUE;
        }
#endif /* BCM4354_CHIP && SUPPORT_MULTIPLE_REVISION */
#if defined(BCM4358_CHIP) && defined(SUPPORT_MULTIPLE_REVISION)
        if (chipid == BCM43569_CHIP_ID && config_chipid == BCM4358_CHIP_ID) {
                return TRUE;
        }
#endif /* BCM4358_CHIP && SUPPORT_MULTIPLE_REVISION */
#if defined(BCM4359_CHIP)
        if (chipid == BCM4355_CHIP_ID && config_chipid == BCM4359_CHIP_ID) {
                return TRUE;
        }
#endif /* BCM4359_CHIP */
#if defined(BCM4361_CHIP)
        if (chipid == BCM4347_CHIP_ID && config_chipid == BCM4361_CHIP_ID) {
                return TRUE;
        }
#endif /* BCM4361_CHIP */

        return config_chipid == chipid;
}
#endif /* CUSTOMER_HW4_DEBUG */

#if defined(BT_OVER_SDIO)
wlan_bt_handle_t dhd_bt_get_pub_hndl(void)
{
        DHD_ERROR(("%s: g_dhd_pub %p\n", __FUNCTION__, g_dhd_pub));
        /* assuming that dhd_pub_t type pointer is available from a global variable */
        return (wlan_bt_handle_t) g_dhd_pub;
} EXPORT_SYMBOL(dhd_bt_get_pub_hndl);

int dhd_download_btfw(wlan_bt_handle_t handle, char* btfw_path)
{
        int ret = -1;
        dhd_pub_t *dhdp = (dhd_pub_t *)handle;
        dhd_info_t *dhd = (dhd_info_t*)dhdp->info;

        /* Download BT firmware image to the dongle */
        if (dhd->pub.busstate == DHD_BUS_DATA && dhd_update_btfw_path(dhd, btfw_path)) {
                DHD_INFO(("%s: download btfw from: %s\n", __FUNCTION__, dhd->btfw_path));
                ret = dhd_bus_download_btfw(dhd->pub.bus, dhd->pub.osh, dhd->btfw_path);
                if (ret < 0) {
                        DHD_ERROR(("%s: failed to download btfw from: %s\n",
                                __FUNCTION__, dhd->btfw_path));
                        return ret;
                }
        }
        return ret;
} EXPORT_SYMBOL(dhd_download_btfw);
#endif /* defined (BT_OVER_SDIO) */

int
dhd_bus_start(dhd_pub_t *dhdp)
{
        int ret = -1;
        dhd_info_t *dhd = (dhd_info_t*)dhdp->info;
        unsigned long flags;

#if defined(DHD_DEBUG) && defined(BCMSDIO)
        int fw_download_start = 0, fw_download_end = 0, f2_sync_start = 0, f2_sync_end = 0;
#endif /* DHD_DEBUG && BCMSDIO */
        ASSERT(dhd);

        DHD_TRACE(("Enter %s:\n", __FUNCTION__));
        dhdp->dongle_trap_occured = 0;
        dhdp->iovar_timeout_occured = 0;
#ifdef PCIE_FULL_DONGLE
        dhdp->d3ack_timeout_occured = 0;
#endif /* PCIE_FULL_DONGLE */
#ifdef DHD_MAP_LOGGING
        dhdp->smmu_fault_occurred = 0;
#endif /* DHD_MAP_LOGGING */

        DHD_PERIM_LOCK(dhdp);
        /* try to download image and nvram to the dongle */
        if  (dhd->pub.busstate == DHD_BUS_DOWN && dhd_update_fw_nv_path(dhd)) {
                /* Indicate FW Download has not yet done */
                dhd->pub.fw_download_done = FALSE;
                DHD_INFO(("%s download fw %s, nv %s\n", __FUNCTION__, dhd->fw_path, dhd->nv_path));
#if defined(DHD_DEBUG) && defined(BCMSDIO)
                fw_download_start = OSL_SYSUPTIME();
#endif /* DHD_DEBUG && BCMSDIO */
                ret = dhd_bus_download_firmware(dhd->pub.bus, dhd->pub.osh,
                                                dhd->fw_path, dhd->nv_path);
#if defined(DHD_DEBUG) && defined(BCMSDIO)
                fw_download_end = OSL_SYSUPTIME();
#endif /* DHD_DEBUG && BCMSDIO */
                if (ret < 0) {
                        DHD_ERROR(("%s: failed to download firmware %s\n",
                                  __FUNCTION__, dhd->fw_path));
                        DHD_PERIM_UNLOCK(dhdp);
                        return ret;
                }
                /* Indicate FW Download has succeeded */
                dhd->pub.fw_download_done = TRUE;
        }
        if (dhd->pub.busstate != DHD_BUS_LOAD) {
                DHD_PERIM_UNLOCK(dhdp);
                return -ENETDOWN;
        }

#ifdef BCMSDIO
        dhd_os_sdlock(dhdp);
#endif /* BCMSDIO */

        /* Start the watchdog timer */
        dhd->pub.tickcnt = 0;
        dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);

        /* Bring up the bus */
        if ((ret = dhd_bus_init(&dhd->pub, FALSE)) != 0) {

                DHD_ERROR(("%s, dhd_bus_init failed %d\n", __FUNCTION__, ret));
#ifdef BCMSDIO
                dhd_os_sdunlock(dhdp);
#endif /* BCMSDIO */
                DHD_PERIM_UNLOCK(dhdp);
                return ret;
        }

        DHD_ENABLE_RUNTIME_PM(&dhd->pub);

#ifdef DHD_ULP
        dhd_ulp_set_ulp_state(dhdp, DHD_ULP_DISABLED);
#endif /* DHD_ULP */
#if defined(OOB_INTR_ONLY) || defined(BCMSPI_ANDROID) || defined(BCMPCIE_OOB_HOST_WAKE)
        /* Host registration for OOB interrupt */
        if (dhd_bus_oob_intr_register(dhdp)) {
                /* deactivate timer and wait for the handler to finish */
#if !defined(BCMPCIE_OOB_HOST_WAKE)
                DHD_GENERAL_LOCK(&dhd->pub, flags);
                dhd->wd_timer_valid = FALSE;
                DHD_GENERAL_UNLOCK(&dhd->pub, flags);
                del_timer_sync(&dhd->timer);

#endif /* !BCMPCIE_OOB_HOST_WAKE */
                DHD_DISABLE_RUNTIME_PM(&dhd->pub);
                DHD_PERIM_UNLOCK(dhdp);
                DHD_ERROR(("%s Host failed to register for OOB\n", __FUNCTION__));
                DHD_OS_WD_WAKE_UNLOCK(&dhd->pub);
                return -ENODEV;
        }

#if defined(BCMPCIE_OOB_HOST_WAKE)
        dhd_bus_oob_intr_set(dhdp, TRUE);
#else
        /* Enable oob at firmware */
        dhd_enable_oob_intr(dhd->pub.bus, TRUE);
#endif /* BCMPCIE_OOB_HOST_WAKE */
#endif /* OOB_INTR_ONLY || BCMSPI_ANDROID || BCMPCIE_OOB_HOST_WAKE */
#ifdef PCIE_FULL_DONGLE
        {
                /* max_h2d_rings includes H2D common rings */
                uint32 max_h2d_rings = dhd_bus_max_h2d_queues(dhd->pub.bus);

                DHD_ERROR(("%s: Initializing %u h2drings\n", __FUNCTION__,
                        max_h2d_rings));
                if ((ret = dhd_flow_rings_init(&dhd->pub, max_h2d_rings)) != BCME_OK) {
#ifdef BCMSDIO
                        dhd_os_sdunlock(dhdp);
#endif /* BCMSDIO */
                        DHD_PERIM_UNLOCK(dhdp);
                        return ret;
                }
        }
#endif /* PCIE_FULL_DONGLE */

        /* Do protocol initialization necessary for IOCTL/IOVAR */
        ret = dhd_prot_init(&dhd->pub);
        if (unlikely(ret) != BCME_OK) {
                DHD_PERIM_UNLOCK(dhdp);
                DHD_OS_WD_WAKE_UNLOCK(&dhd->pub);
                return ret;
        }

        /* If bus is not ready, can't come up */
        if (dhd->pub.busstate != DHD_BUS_DATA) {
                DHD_GENERAL_LOCK(&dhd->pub, flags);
                dhd->wd_timer_valid = FALSE;
                DHD_GENERAL_UNLOCK(&dhd->pub, flags);
                del_timer_sync(&dhd->timer);
                DHD_ERROR(("%s failed bus is not ready\n", __FUNCTION__));
                DHD_DISABLE_RUNTIME_PM(&dhd->pub);
#ifdef BCMSDIO
                dhd_os_sdunlock(dhdp);
#endif /* BCMSDIO */
                DHD_PERIM_UNLOCK(dhdp);
                DHD_OS_WD_WAKE_UNLOCK(&dhd->pub);
                return -ENODEV;
        }

#ifdef BCMSDIO
        dhd_os_sdunlock(dhdp);
#endif /* BCMSDIO */

        /* Bus is ready, query any dongle information */
#if defined(DHD_DEBUG) && defined(BCMSDIO)
        f2_sync_start = OSL_SYSUPTIME();
#endif /* DHD_DEBUG && BCMSDIO */
        if ((ret = dhd_sync_with_dongle(&dhd->pub)) < 0) {
                DHD_GENERAL_LOCK(&dhd->pub, flags);
                dhd->wd_timer_valid = FALSE;
                DHD_GENERAL_UNLOCK(&dhd->pub, flags);
                del_timer_sync(&dhd->timer);
                DHD_ERROR(("%s failed to sync with dongle\n", __FUNCTION__));
                DHD_OS_WD_WAKE_UNLOCK(&dhd->pub);
                DHD_PERIM_UNLOCK(dhdp);
                return ret;
        }
#if defined(CONFIG_SOC_EXYNOS8895) || defined(CONFIG_SOC_EXYNOS9810)
        DHD_ERROR(("%s: Enable L1ss EP side\n", __FUNCTION__));
        exynos_pcie_l1ss_ctrl(1, PCIE_L1SS_CTRL_WIFI);
#endif /* CONFIG_SOC_EXYNOS8895 || CONFIG_SOC_EXYNOS9810 */

#if defined(DHD_DEBUG) && defined(BCMSDIO)
        f2_sync_end = OSL_SYSUPTIME();
        DHD_ERROR(("Time taken for FW download and F2 ready is: %d msec\n",
                        (fw_download_end - fw_download_start) + (f2_sync_end - f2_sync_start)));
#endif /* DHD_DEBUG && BCMSDIO */

#ifdef ARP_OFFLOAD_SUPPORT
        if (dhd->pend_ipaddr) {
#ifdef AOE_IP_ALIAS_SUPPORT
                aoe_update_host_ipv4_table(&dhd->pub, dhd->pend_ipaddr, TRUE, 0);
#endif /* AOE_IP_ALIAS_SUPPORT */
                dhd->pend_ipaddr = 0;
        }
#endif /* ARP_OFFLOAD_SUPPORT */

        DHD_PERIM_UNLOCK(dhdp);

        return 0;
}
#ifdef WLTDLS
int _dhd_tdls_enable(dhd_pub_t *dhd, bool tdls_on, bool auto_on, struct ether_addr *mac)
{
        uint32 tdls = tdls_on;
        int ret = 0;
        uint32 tdls_auto_op = 0;
        uint32 tdls_idle_time = CUSTOM_TDLS_IDLE_MODE_SETTING;
        int32 tdls_rssi_high = CUSTOM_TDLS_RSSI_THRESHOLD_HIGH;
        int32 tdls_rssi_low = CUSTOM_TDLS_RSSI_THRESHOLD_LOW;
        uint32 tdls_pktcnt_high = CUSTOM_TDLS_PCKTCNT_THRESHOLD_HIGH;
        uint32 tdls_pktcnt_low = CUSTOM_TDLS_PCKTCNT_THRESHOLD_LOW;

        BCM_REFERENCE(mac);
        if (!FW_SUPPORTED(dhd, tdls))
                return BCME_ERROR;

        if (dhd->tdls_enable == tdls_on)
                goto auto_mode;
        ret = dhd_iovar(dhd, 0, "tdls_enable", (char *)&tdls, sizeof(tdls), NULL, 0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s: tdls %d failed %d\n", __FUNCTION__, tdls, ret));
                goto exit;
        }
        dhd->tdls_enable = tdls_on;
auto_mode:

        tdls_auto_op = auto_on;
        ret = dhd_iovar(dhd, 0, "tdls_auto_op", (char *)&tdls_auto_op, sizeof(tdls_auto_op), NULL,
                        0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s: tdls_auto_op failed %d\n", __FUNCTION__, ret));
                goto exit;
        }

        if (tdls_auto_op) {
                ret = dhd_iovar(dhd, 0, "tdls_idle_time", (char *)&tdls_idle_time,
                                sizeof(tdls_idle_time), NULL, 0, TRUE);
                if (ret < 0) {
                        DHD_ERROR(("%s: tdls_idle_time failed %d\n", __FUNCTION__, ret));
                        goto exit;
                }
                ret = dhd_iovar(dhd, 0, "tdls_rssi_high", (char *)&tdls_rssi_high,
                                sizeof(tdls_rssi_high), NULL, 0, TRUE);
                if (ret < 0) {
                        DHD_ERROR(("%s: tdls_rssi_high failed %d\n", __FUNCTION__, ret));
                        goto exit;
                }
                ret = dhd_iovar(dhd, 0, "tdls_rssi_low", (char *)&tdls_rssi_low,
                                sizeof(tdls_rssi_low), NULL, 0, TRUE);
                if (ret < 0) {
                        DHD_ERROR(("%s: tdls_rssi_low failed %d\n", __FUNCTION__, ret));
                        goto exit;
                }
                ret = dhd_iovar(dhd, 0, "tdls_trigger_pktcnt_high", (char *)&tdls_pktcnt_high,
                                sizeof(tdls_pktcnt_high), NULL, 0, TRUE);
                if (ret < 0) {
                        DHD_ERROR(("%s: tdls_trigger_pktcnt_high failed %d\n", __FUNCTION__, ret));
                        goto exit;
                }
                ret = dhd_iovar(dhd, 0, "tdls_trigger_pktcnt_low", (char *)&tdls_pktcnt_low,
                                sizeof(tdls_pktcnt_low), NULL, 0, TRUE);
                if (ret < 0) {
                        DHD_ERROR(("%s: tdls_trigger_pktcnt_low failed %d\n", __FUNCTION__, ret));
                        goto exit;
                }
        }

exit:
        return ret;
}
int dhd_tdls_enable(struct net_device *dev, bool tdls_on, bool auto_on, struct ether_addr *mac)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        int ret = 0;
        if (dhd)
                ret = _dhd_tdls_enable(&dhd->pub, tdls_on, auto_on, mac);
        else
                ret = BCME_ERROR;
        return ret;
}
int
dhd_tdls_set_mode(dhd_pub_t *dhd, bool wfd_mode)
{
        int ret = 0;
        bool auto_on = false;
        uint32 mode =  wfd_mode;

#ifdef ENABLE_TDLS_AUTO_MODE
        if (wfd_mode) {
                auto_on = false;
        } else {
                auto_on = true;
        }
#else
        auto_on = false;
#endif /* ENABLE_TDLS_AUTO_MODE */
        ret = _dhd_tdls_enable(dhd, false, auto_on, NULL);
        if (ret < 0) {
                DHD_ERROR(("Disable tdls_auto_op failed. %d\n", ret));
                return ret;
        }

        ret = dhd_iovar(dhd, 0, "tdls_wfd_mode", (char *)&mode, sizeof(mode), NULL, 0, TRUE);
        if ((ret < 0) && (ret != BCME_UNSUPPORTED)) {
                DHD_ERROR(("%s: tdls_wfd_mode faile_wfd_mode %d\n", __FUNCTION__, ret));
                return ret;
        }

        ret = _dhd_tdls_enable(dhd, true, auto_on, NULL);
        if (ret < 0) {
                DHD_ERROR(("enable tdls_auto_op failed. %d\n", ret));
                return ret;
        }

        dhd->tdls_mode = mode;
        return ret;
}
#ifdef PCIE_FULL_DONGLE
int dhd_tdls_update_peer_info(dhd_pub_t *dhdp, wl_event_msg_t *event)
{
        dhd_pub_t *dhd_pub = dhdp;
        tdls_peer_node_t *cur = dhd_pub->peer_tbl.node;
        tdls_peer_node_t *new = NULL, *prev = NULL;
        int ifindex = dhd_ifname2idx(dhd_pub->info, event->ifname);
        uint8 *da = (uint8 *)&event->addr.octet[0];
        bool connect = FALSE;
        uint32 reason = ntoh32(event->reason);
        unsigned long flags;

        if (reason == WLC_E_TDLS_PEER_CONNECTED)
                connect = TRUE;
        else if (reason == WLC_E_TDLS_PEER_DISCONNECTED)
                connect = FALSE;
        else
        {
                DHD_ERROR(("%s: TDLS Event reason is unknown\n", __FUNCTION__));
                return BCME_ERROR;
        }
        if (ifindex == DHD_BAD_IF)
                return BCME_ERROR;

        if (connect) {
                while (cur != NULL) {
                        if (!memcmp(da, cur->addr, ETHER_ADDR_LEN)) {
                                DHD_ERROR(("%s: TDLS Peer exist already %d\n",
                                        __FUNCTION__, __LINE__));
                                return BCME_ERROR;
                        }
                        cur = cur->next;
                }

                new = MALLOC(dhd_pub->osh, sizeof(tdls_peer_node_t));
                if (new == NULL) {
                        DHD_ERROR(("%s: Failed to allocate memory\n", __FUNCTION__));
                        return BCME_ERROR;
                }
                memcpy(new->addr, da, ETHER_ADDR_LEN);
                DHD_TDLS_LOCK(&dhdp->tdls_lock, flags);
                new->next = dhd_pub->peer_tbl.node;
                dhd_pub->peer_tbl.node = new;
                dhd_pub->peer_tbl.tdls_peer_count++;
                DHD_TDLS_UNLOCK(&dhdp->tdls_lock, flags);

        } else {
                while (cur != NULL) {
                        if (!memcmp(da, cur->addr, ETHER_ADDR_LEN)) {
                                dhd_flow_rings_delete_for_peer(dhd_pub, (uint8)ifindex, da);
                                DHD_TDLS_LOCK(&dhdp->tdls_lock, flags);
                                if (prev)
                                        prev->next = cur->next;
                                else
                                        dhd_pub->peer_tbl.node = cur->next;
                                MFREE(dhd_pub->osh, cur, sizeof(tdls_peer_node_t));
                                dhd_pub->peer_tbl.tdls_peer_count--;
                                DHD_TDLS_UNLOCK(&dhdp->tdls_lock, flags);
                                return BCME_OK;
                        }
                        prev = cur;
                        cur = cur->next;
                }
                DHD_ERROR(("%s: TDLS Peer Entry Not found\n", __FUNCTION__));
        }
        return BCME_OK;
}
#endif /* PCIE_FULL_DONGLE */
#endif // endif

bool dhd_is_concurrent_mode(dhd_pub_t *dhd)
{
        if (!dhd)
                return FALSE;

        if (dhd->op_mode & DHD_FLAG_CONCURR_MULTI_CHAN_MODE)
                return TRUE;
        else if ((dhd->op_mode & DHD_FLAG_CONCURR_SINGLE_CHAN_MODE) ==
                DHD_FLAG_CONCURR_SINGLE_CHAN_MODE)
                return TRUE;
        else
                return FALSE;
}
#if !defined(AP) && defined(WLP2P)
/* From Android JerryBean release, the concurrent mode is enabled by default and the firmware
 * name would be fw_bcmdhd.bin. So we need to determine whether P2P is enabled in the STA
 * firmware and accordingly enable concurrent mode (Apply P2P settings). SoftAP firmware
 * would still be named as fw_bcmdhd_apsta.
 */
uint32
dhd_get_concurrent_capabilites(dhd_pub_t *dhd)
{
        int32 ret = 0;
        char buf[WLC_IOCTL_SMLEN];
        bool mchan_supported = FALSE;
        /* if dhd->op_mode is already set for HOSTAP and Manufacturing
         * test mode, that means we only will use the mode as it is
         */
        if (dhd->op_mode & (DHD_FLAG_HOSTAP_MODE | DHD_FLAG_MFG_MODE))
                return 0;
        if (FW_SUPPORTED(dhd, vsdb)) {
                mchan_supported = TRUE;
        }
        if (!FW_SUPPORTED(dhd, p2p)) {
                DHD_TRACE(("Chip does not support p2p\n"));
                return 0;
        } else {
                /* Chip supports p2p but ensure that p2p is really implemented in firmware or not */
                memset(buf, 0, sizeof(buf));
                ret = dhd_iovar(dhd, 0, "p2p", NULL, 0, (char *)&buf,
                                sizeof(buf), FALSE);
                if (ret < 0) {
                        DHD_ERROR(("%s: Get P2P failed (error=%d)\n", __FUNCTION__, ret));
                        return 0;
                } else {
                        if (buf[0] == 1) {
                                /* By default, chip supports single chan concurrency,
                                * now lets check for mchan
                                */
                                ret = DHD_FLAG_CONCURR_SINGLE_CHAN_MODE;
                                if (mchan_supported)
                                        ret |= DHD_FLAG_CONCURR_MULTI_CHAN_MODE;
                                if (FW_SUPPORTED(dhd, rsdb)) {
                                        ret |= DHD_FLAG_RSDB_MODE;
                                }
#ifdef WL_SUPPORT_MULTIP2P
                                if (FW_SUPPORTED(dhd, mp2p)) {
                                        ret |= DHD_FLAG_MP2P_MODE;
                                }
#endif /* WL_SUPPORT_MULTIP2P */
#if defined(WL_ENABLE_P2P_IF) || defined(WL_CFG80211_P2P_DEV_IF)
                                return ret;
#else
                                return 0;
#endif /* WL_ENABLE_P2P_IF || WL_CFG80211_P2P_DEV_IF */
                        }
                }
        }
        return 0;
}
#endif // endif

#ifdef WLAIBSS
int
dhd_preinit_aibss_ioctls(dhd_pub_t *dhd, char *iov_buf_smlen)
{
        int ret = BCME_OK;
        aibss_bcn_force_config_t bcn_config;
        uint32 aibss;
#ifdef WLAIBSS_PS
        uint32 aibss_ps;
        s32 atim;
#endif /* WLAIBSS_PS */
        int ibss_coalesce;

        aibss = 1;
        ret = dhd_iovar(dhd, 0, "aibss", (char *)&aibss, sizeof(aibss), NULL, 0, TRUE);
        if (ret < 0) {
                if (ret == BCME_UNSUPPORTED) {
                        DHD_ERROR(("%s aibss is not supported\n",
                                __FUNCTION__));
                        return BCME_OK;
                } else {
                        DHD_ERROR(("%s Set aibss to %d failed  %d\n",
                                __FUNCTION__, aibss, ret));
                        return ret;
                }
        }

#ifdef WLAIBSS_PS
        aibss_ps = 1;
        ret = dhd_iovar(dhd, 0, "aibss_ps", (char *)&aibss_ps, sizeof(aibss_ps), NULL, 0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s Set aibss PS to %d failed  %d\n",
                        __FUNCTION__, aibss, ret));
                return ret;
        }

        atim = 10;
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_ATIM,
                (char *)&atim, sizeof(atim), TRUE, 0)) < 0) {
                DHD_ERROR(("%s Enable custom IBSS ATIM mode failed %d\n",
                        __FUNCTION__, ret));
                return ret;
        }
#endif /* WLAIBSS_PS */

        memset(&bcn_config, 0, sizeof(bcn_config));
        bcn_config.initial_min_bcn_dur = AIBSS_INITIAL_MIN_BCN_DUR;
        bcn_config.min_bcn_dur = AIBSS_MIN_BCN_DUR;
        bcn_config.bcn_flood_dur = AIBSS_BCN_FLOOD_DUR;
        bcn_config.version = AIBSS_BCN_FORCE_CONFIG_VER_0;
        bcn_config.len = sizeof(bcn_config);

        ret = dhd_iovar(dhd, 0, "aibss_bcn_force_config", (char *)&bcn_config,
                        sizeof(aibss_bcn_force_config_t), NULL, 0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s Set aibss_bcn_force_config to %d, %d, %d failed %d\n",
                        __FUNCTION__, AIBSS_INITIAL_MIN_BCN_DUR, AIBSS_MIN_BCN_DUR,
                        AIBSS_BCN_FLOOD_DUR, ret));
                return ret;
        }

        ibss_coalesce = IBSS_COALESCE_DEFAULT;
        ret = dhd_iovar(dhd, 0, "ibss_coalesce_allowed", (char *)&ibss_coalesce,
                        sizeof(ibss_coalesce), NULL, 0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s Set ibss_coalesce_allowed failed  %d\n",
                        __FUNCTION__, ret));
                return ret;
        }

        dhd->op_mode |= DHD_FLAG_IBSS_MODE;
        return BCME_OK;
}
#endif /* WLAIBSS */

#if defined(WLADPS) || defined(WLADPS_PRIVATE_CMD)
#ifdef WL_BAM
static int
dhd_check_adps_bad_ap(dhd_pub_t *dhd)
{
        struct net_device *ndev;
        struct bcm_cfg80211 *cfg;
        struct wl_profile *profile;
        struct ether_addr bssid;

        if (!dhd_is_associated(dhd, 0, NULL)) {
                DHD_ERROR(("%s - not associated\n", __FUNCTION__));
                return BCME_OK;
        }

        ndev = dhd_linux_get_primary_netdev(dhd);
        if (!ndev) {
                DHD_ERROR(("%s: Cannot find primary netdev\n", __FUNCTION__));
                return -ENODEV;
        }

        cfg = wl_get_cfg(ndev);
        if (!cfg) {
                DHD_ERROR(("%s: Cannot find cfg\n", __FUNCTION__));
                return -EINVAL;
        }

        profile = wl_get_profile_by_netdev(cfg, ndev);
        memcpy(bssid.octet, profile->bssid, ETHER_ADDR_LEN);
        if (wl_adps_bad_ap_check(cfg, &bssid)) {
                if (wl_adps_enabled(cfg, ndev)) {
                        wl_adps_set_suspend(cfg, ndev, ADPS_SUSPEND);
                }
        }

        return BCME_OK;
}
#endif  /* WL_BAM */

int
dhd_enable_adps(dhd_pub_t *dhd, uint8 on)
{
        int i;
        int len;
        int ret = BCME_OK;

        bcm_iov_buf_t *iov_buf = NULL;
        wl_adps_params_v1_t *data = NULL;

        len = OFFSETOF(bcm_iov_buf_t, data) + sizeof(*data);
        iov_buf = MALLOC(dhd->osh, len);
        if (iov_buf == NULL) {
                DHD_ERROR(("%s - failed to allocate %d bytes for iov_buf\n", __FUNCTION__, len));
                ret = BCME_NOMEM;
                goto exit;
        }

        iov_buf->version = WL_ADPS_IOV_VER;
        iov_buf->len = sizeof(*data);
        iov_buf->id = WL_ADPS_IOV_MODE;

        data = (wl_adps_params_v1_t *)iov_buf->data;
        data->version = ADPS_SUB_IOV_VERSION_1;
        data->length = sizeof(*data);
        data->mode = on;

        for (i = 1; i <= MAX_BANDS; i++) {
                data->band = i;
                ret = dhd_iovar(dhd, 0, "adps", (char *)iov_buf, len, NULL, 0, TRUE);
                if (ret < 0) {
                        if (ret == BCME_UNSUPPORTED) {
                                DHD_ERROR(("%s adps is not supported\n", __FUNCTION__));
                                ret = BCME_OK;
                                goto exit;
                        }
                        else {
                                DHD_ERROR(("%s fail to set adps %s for band %d (%d)\n",
                                        __FUNCTION__, on ? "On" : "Off", i, ret));
                                goto exit;
                        }
                }
        }

#ifdef WL_BAM
        if (on) {
                dhd_check_adps_bad_ap(dhd);
        }
#endif  /* WL_BAM */

exit:
        if (iov_buf) {
                MFREE(dhd->osh, iov_buf, len);
                iov_buf = NULL;
        }
        return ret;
}
#endif /* WLADPS || WLADPS_PRIVATE_CMD */

int
dhd_preinit_ioctls(dhd_pub_t *dhd)
{
        int ret = 0;
        char eventmask[WL_EVENTING_MASK_LEN];
        char iovbuf[WL_EVENTING_MASK_LEN + 12]; /*  Room for "event_msgs" + '\0' + bitvec  */
        uint32 buf_key_b4_m4 = 1;
        uint8 msglen;
        eventmsgs_ext_t *eventmask_msg = NULL;
        char* iov_buf = NULL;
        int ret2 = 0;
        uint32 wnm_cap = 0;
#if defined(BCMSUP_4WAY_HANDSHAKE)
        uint32 sup_wpa = 1;
#endif /* BCMSUP_4WAY_HANDSHAKE */
#if defined(CUSTOM_AMPDU_BA_WSIZE) || (defined(WLAIBSS) && \
        defined(CUSTOM_IBSS_AMPDU_BA_WSIZE))
        uint32 ampdu_ba_wsize = 0;
#endif /* CUSTOM_AMPDU_BA_WSIZE ||(WLAIBSS && CUSTOM_IBSS_AMPDU_BA_WSIZE) */
#if defined(CUSTOM_AMPDU_MPDU)
        int32 ampdu_mpdu = 0;
#endif // endif
#if defined(CUSTOM_AMPDU_RELEASE)
        int32 ampdu_release = 0;
#endif // endif
#if defined(CUSTOM_AMSDU_AGGSF)
        int32 amsdu_aggsf = 0;
#endif // endif

#if defined(BCMSDIO)
#ifdef PROP_TXSTATUS
        int wlfc_enable = TRUE;
#ifndef DISABLE_11N
        uint32 hostreorder = 1;
#endif /* DISABLE_11N */
#endif /* PROP_TXSTATUS */
#endif // endif
#ifndef PCIE_FULL_DONGLE
        uint32 wl_ap_isolate;
#endif /* PCIE_FULL_DONGLE */
        uint32 frameburst = CUSTOM_FRAMEBURST_SET;
        uint wnm_bsstrans_resp = 0;
#ifdef SUPPORT_SET_CAC
#ifdef SUPPORT_CUSTOM_SET_CAC
        uint32 cac = 0;
#else
        uint32 cac = 1;
#endif /* SUPPORT_CUSTOM_SET_CAC */
#endif /* SUPPORT_SET_CAC */

#if defined(DHD_NON_DMA_M2M_CORRUPTION)
        dhd_pcie_dmaxfer_lpbk_t pcie_dmaxfer_lpbk;
#endif /* DHD_NON_DMA_M2M_CORRUPTION */

#ifdef DHD_ENABLE_LPC
        uint32 lpc = 1;
#endif /* DHD_ENABLE_LPC */
        uint power_mode = PM_FAST;
#if defined(BCMSDIO)
        uint32 dongle_align = DHD_SDALIGN;
        uint32 glom = CUSTOM_GLOM_SETTING;
#endif /* defined(BCMSDIO) */
        uint bcn_timeout = CUSTOM_BCN_TIMEOUT;
        uint scancache_enab = TRUE;
#ifdef ENABLE_BCN_LI_BCN_WAKEUP
        uint32 bcn_li_bcn = 1;
#endif /* ENABLE_BCN_LI_BCN_WAKEUP */
        uint retry_max = CUSTOM_ASSOC_RETRY_MAX;
#if defined(ARP_OFFLOAD_SUPPORT)
        int arpoe = 1;
#endif // endif
        int scan_assoc_time = DHD_SCAN_ASSOC_ACTIVE_TIME;
        int scan_unassoc_time = DHD_SCAN_UNASSOC_ACTIVE_TIME;
        int scan_passive_time = DHD_SCAN_PASSIVE_TIME;
        char buf[WLC_IOCTL_SMLEN];
        char *ptr;
        uint32 listen_interval = CUSTOM_LISTEN_INTERVAL; /* Default Listen Interval in Beacons */
#if defined(DHD_8021X_DUMP) && defined(SHOW_LOGTRACE)
        wl_el_tag_params_t *el_tag = NULL;
#endif /* DHD_8021X_DUMP */
#ifdef ROAM_ENABLE
        uint roamvar = 0;
        int roam_trigger[2] = {CUSTOM_ROAM_TRIGGER_SETTING, WLC_BAND_ALL};
        int roam_scan_period[2] = {10, WLC_BAND_ALL};
        int roam_delta[2] = {CUSTOM_ROAM_DELTA_SETTING, WLC_BAND_ALL};
#ifdef ROAM_AP_ENV_DETECTION
        int roam_env_mode = AP_ENV_INDETERMINATE;
#endif /* ROAM_AP_ENV_DETECTION */
#ifdef FULL_ROAMING_SCAN_PERIOD_60_SEC
        int roam_fullscan_period = 60;
#else /* FULL_ROAMING_SCAN_PERIOD_60_SEC */
        int roam_fullscan_period = 120;
#endif /* FULL_ROAMING_SCAN_PERIOD_60_SEC */
#ifdef DISABLE_BCNLOSS_ROAM
        uint roam_bcnloss_off = 1;
#endif /* DISABLE_BCNLOSS_ROAM */
#else
#ifdef DISABLE_BUILTIN_ROAM
        uint roamvar = 1;
#endif /* DISABLE_BUILTIN_ROAM */
#endif /* ROAM_ENABLE */

#if defined(SOFTAP)
        uint dtim = 1;
#endif // endif
#if (defined(AP) && !defined(WLP2P)) || (!defined(AP) && defined(WL_CFG80211))
        struct ether_addr p2p_ea;
#endif // endif
#ifdef BCMCCX
        uint32 ccx = 1;
#endif // endif
#ifdef SOFTAP_UAPSD_OFF
        uint32 wme_apsd = 0;
#endif /* SOFTAP_UAPSD_OFF */
#if (defined(AP) || defined(WLP2P)) && !defined(SOFTAP_AND_GC)
        uint32 apsta = 1; /* Enable APSTA mode */
#elif defined(SOFTAP_AND_GC)
        uint32 apsta = 0;
        int ap_mode = 1;
#endif /* (defined(AP) || defined(WLP2P)) && !defined(SOFTAP_AND_GC) */
#ifdef GET_CUSTOM_MAC_ENABLE
        struct ether_addr ea_addr;
#endif /* GET_CUSTOM_MAC_ENABLE */
#ifdef OKC_SUPPORT
        uint32 okc = 1;
#endif // endif

#ifdef DISABLE_11N
        uint32 nmode = 0;
#endif /* DISABLE_11N */

#ifdef USE_WL_TXBF
        uint32 txbf = 1;
#endif /* USE_WL_TXBF */
#ifdef DISABLE_TXBFR
        uint32 txbf_bfr_cap = 0;
#endif /* DISABLE_TXBFR */
#ifdef AMPDU_VO_ENABLE
        struct ampdu_tid_control tid;
#endif // endif
#if defined(PROP_TXSTATUS)
#ifdef USE_WFA_CERT_CONF
        uint32 proptx = 0;
#endif /* USE_WFA_CERT_CONF */
#endif /* PROP_TXSTATUS */
#ifdef DHD_SET_FW_HIGHSPEED
        uint32 ack_ratio = 250;
        uint32 ack_ratio_depth = 64;
#endif /* DHD_SET_FW_HIGHSPEED */
#if defined(SUPPORT_2G_VHT) || defined(SUPPORT_5G_1024QAM_VHT)
        uint32 vht_features = 0; /* init to 0, will be set based on each support */
#endif /* SUPPORT_2G_VHT || SUPPORT_5G_1024QAM_VHT */
#ifdef DISABLE_11N_PROPRIETARY_RATES
        uint32 ht_features = 0;
#endif /* DISABLE_11N_PROPRIETARY_RATES */
#ifdef CUSTOM_EVENT_PM_WAKE
        uint32 pm_awake_thresh = CUSTOM_EVENT_PM_WAKE;
#endif  /* CUSTOM_EVENT_PM_WAKE */
#ifdef DISABLE_PRUNED_SCAN
        uint32 scan_features = 0;
#endif /* DISABLE_PRUNED_SCAN */
#ifdef DHD_2G_ONLY_SUPPORT
        uint band = WLC_BAND_2G;
#endif /* DHD_2G_ONLY_SUPPORT */
#ifdef BCMPCIE_OOB_HOST_WAKE
        uint32 hostwake_oob = 0;
#endif /* BCMPCIE_OOB_HOST_WAKE */
#if defined(WBTEXT) && defined(WBTEXT_BTMDELTA)
        uint32 btmdelta = WBTEXT_BTMDELTA;
#endif /* WBTEXT && WBTEXT_BTMDELTA */

#ifdef PKT_FILTER_SUPPORT
        dhd_pkt_filter_enable = TRUE;
#ifdef APF
        dhd->apf_set = FALSE;
#endif /* APF */
#endif /* PKT_FILTER_SUPPORT */
        dhd->suspend_bcn_li_dtim = CUSTOM_SUSPEND_BCN_LI_DTIM;
#ifdef ENABLE_MAX_DTIM_IN_SUSPEND
        dhd->max_dtim_enable = TRUE;
#else
        dhd->max_dtim_enable = FALSE;
#endif /* ENABLE_MAX_DTIM_IN_SUSPEND */
        dhd->disable_dtim_in_suspend = FALSE;
#ifdef CUSTOM_SET_OCLOFF
        dhd->ocl_off = FALSE;
#endif /* CUSTOM_SET_OCLOFF */
#ifdef SUPPORT_SET_TID
        dhd->tid_mode = SET_TID_OFF;
        dhd->target_uid = 0;
        dhd->target_tid = 0;
#endif /* SUPPORT_SET_TID */
        DHD_TRACE(("Enter %s\n", __FUNCTION__));
        dhd->op_mode = 0;

#ifdef CUSTOMER_HW4_DEBUG
        if (!dhd_validate_chipid(dhd)) {
                DHD_ERROR(("%s: CONFIG_BCMXXX and CHIP ID(%x) is mismatched\n",
                        __FUNCTION__, dhd_bus_chip_id(dhd)));
#ifndef SUPPORT_MULTIPLE_CHIPS
                ret = BCME_BADARG;
                goto done;
#endif /* !SUPPORT_MULTIPLE_CHIPS */
        }
#endif /* CUSTOMER_HW4_DEBUG */
        if ((!op_mode && dhd_get_fw_mode(dhd->info) == DHD_FLAG_MFG_MODE) ||
                (op_mode == DHD_FLAG_MFG_MODE)) {
                dhd->op_mode = DHD_FLAG_MFG_MODE;
#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
                /* disable runtimePM by default in MFG mode. */
                pm_runtime_disable(dhd_bus_to_dev(dhd->bus));
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */
#ifdef DHD_PCIE_RUNTIMEPM
                /* Disable RuntimePM in mfg mode */
                DHD_DISABLE_RUNTIME_PM(dhd);
                DHD_ERROR(("%s : Disable RuntimePM in Manufactring Firmware\n", __FUNCTION__));
#endif /* DHD_PCIE_RUNTIME_PM */
                /* Check and adjust IOCTL response timeout for Manufactring firmware */
                dhd_os_set_ioctl_resp_timeout(MFG_IOCTL_RESP_TIMEOUT);
                DHD_ERROR(("%s : Set IOCTL response time for Manufactring Firmware\n",
                        __FUNCTION__));
        } else {
                dhd_os_set_ioctl_resp_timeout(IOCTL_RESP_TIMEOUT);
                DHD_INFO(("%s : Set IOCTL response time.\n", __FUNCTION__));
        }
#ifdef BCMPCIE_OOB_HOST_WAKE
        ret = dhd_iovar(dhd, 0, "bus:hostwake_oob", NULL, 0, (char *)&hostwake_oob,
                sizeof(hostwake_oob), FALSE);
        if (ret < 0) {
                DHD_ERROR(("%s: hostwake_oob IOVAR not present, proceed\n", __FUNCTION__));
        } else {
                if (hostwake_oob == 0) {
                        DHD_ERROR(("%s: hostwake_oob is not enabled in the NVRAM, STOP\n",
                                __FUNCTION__));
                        ret = BCME_UNSUPPORTED;
                        goto done;
                } else {
                        DHD_ERROR(("%s: hostwake_oob enabled\n", __FUNCTION__));
                }
        }
#endif /* BCMPCIE_OOB_HOST_WAKE */
#ifdef GET_CUSTOM_MAC_ENABLE
        ret = wifi_platform_get_mac_addr(dhd->info->adapter, ea_addr.octet);
        if (!ret) {
                ret = dhd_iovar(dhd, 0, "cur_etheraddr", (char *)&ea_addr, ETHER_ADDR_LEN, NULL, 0,
                                TRUE);
                if (ret < 0) {
                        DHD_ERROR(("%s: can't set MAC address , error=%d\n", __FUNCTION__, ret));
                        ret = BCME_NOTUP;
                        goto done;
                }
                memcpy(dhd->mac.octet, ea_addr.octet, ETHER_ADDR_LEN);
        } else {
#endif /* GET_CUSTOM_MAC_ENABLE */
                /* Get the default device MAC address directly from firmware */
                ret = dhd_iovar(dhd, 0, "cur_etheraddr", NULL, 0, (char *)&buf, sizeof(buf), FALSE);
                if (ret < 0) {
                        DHD_ERROR(("%s: can't get MAC address , error=%d\n", __FUNCTION__, ret));
                        ret = BCME_NOTUP;
                        goto done;
                }
                /* Update public MAC address after reading from Firmware */
                memcpy(dhd->mac.octet, buf, ETHER_ADDR_LEN);

#ifdef GET_CUSTOM_MAC_ENABLE
        }
#endif /* GET_CUSTOM_MAC_ENABLE */

#ifdef DHD_USE_CLMINFO_PARSER
        if ((ret = dhd_get_clminfo(dhd, clm_path)) < 0) {
                if (dhd->is_clm_mult_regrev) {
                        DHD_ERROR(("%s: CLM Information load failed. Abort initialization.\n",
                                __FUNCTION__));
                        goto done;
                }
        }
#endif /* DHD_USE_CLMINFO_PARSER */
        if ((ret = dhd_apply_default_clm(dhd, clm_path)) < 0) {
                DHD_ERROR(("%s: CLM set failed. Abort initialization.\n", __FUNCTION__));
                goto done;
        }

        /* get a capabilities from firmware */
        {
                uint32 cap_buf_size = sizeof(dhd->fw_capabilities);
                memset(dhd->fw_capabilities, 0, cap_buf_size);
                ret = dhd_iovar(dhd, 0, "cap", NULL, 0, dhd->fw_capabilities, (cap_buf_size - 1),
                                FALSE);
                if (ret < 0) {
                        DHD_ERROR(("%s: Get Capability failed (error=%d)\n",
                                __FUNCTION__, ret));
                        return 0;
                }

                memmove(&dhd->fw_capabilities[1], dhd->fw_capabilities, (cap_buf_size - 1));
                dhd->fw_capabilities[0] = ' ';
                dhd->fw_capabilities[cap_buf_size - 2] = ' ';
                dhd->fw_capabilities[cap_buf_size - 1] = '\0';
        }

        if ((!op_mode && dhd_get_fw_mode(dhd->info) == DHD_FLAG_HOSTAP_MODE) ||
                (op_mode == DHD_FLAG_HOSTAP_MODE)) {
#ifdef SET_RANDOM_MAC_SOFTAP
                uint rand_mac;
#endif /* SET_RANDOM_MAC_SOFTAP */
                dhd->op_mode = DHD_FLAG_HOSTAP_MODE;
#if defined(ARP_OFFLOAD_SUPPORT)
                        arpoe = 0;
#endif // endif
#ifdef PKT_FILTER_SUPPORT
                        dhd_pkt_filter_enable = FALSE;
#endif // endif
#ifdef SET_RANDOM_MAC_SOFTAP
                SRANDOM32((uint)jiffies);
                rand_mac = RANDOM32();
                iovbuf[0] = (unsigned char)(vendor_oui >> 16) | 0x02;   /* local admin bit */
                iovbuf[1] = (unsigned char)(vendor_oui >> 8);
                iovbuf[2] = (unsigned char)vendor_oui;
                iovbuf[3] = (unsigned char)(rand_mac & 0x0F) | 0xF0;
                iovbuf[4] = (unsigned char)(rand_mac >> 8);
                iovbuf[5] = (unsigned char)(rand_mac >> 16);

                ret = dhd_iovar(dhd, 0, "cur_etheraddr", (char *)&iovbuf, ETHER_ADDR_LEN, NULL, 0,
                                TRUE);
                if (ret < 0) {
                        DHD_ERROR(("%s: can't set MAC address , error=%d\n", __FUNCTION__, ret));
                } else
                        memcpy(dhd->mac.octet, iovbuf, ETHER_ADDR_LEN);
#endif /* SET_RANDOM_MAC_SOFTAP */
#ifdef USE_DYNAMIC_F2_BLKSIZE
                dhdsdio_func_blocksize(dhd, 2, DYNAMIC_F2_BLKSIZE_FOR_NONLEGACY);
#endif /* USE_DYNAMIC_F2_BLKSIZE */
#ifdef SOFTAP_UAPSD_OFF
                ret = dhd_iovar(dhd, 0, "wme_apsd", (char *)&wme_apsd, sizeof(wme_apsd), NULL, 0,
                                TRUE);
                if (ret < 0) {
                                DHD_ERROR(("%s: set wme_apsd 0 fail (error=%d)\n",
                                __FUNCTION__, ret));
                }
#endif /* SOFTAP_UAPSD_OFF */
        } else if ((!op_mode && dhd_get_fw_mode(dhd->info) == DHD_FLAG_MFG_MODE) ||
                (op_mode == DHD_FLAG_MFG_MODE)) {
#if defined(ARP_OFFLOAD_SUPPORT)
                arpoe = 0;
#endif /* ARP_OFFLOAD_SUPPORT */
#ifdef PKT_FILTER_SUPPORT
                dhd_pkt_filter_enable = FALSE;
#endif /* PKT_FILTER_SUPPORT */
                dhd->op_mode = DHD_FLAG_MFG_MODE;
#ifdef USE_DYNAMIC_F2_BLKSIZE
                dhdsdio_func_blocksize(dhd, 2, DYNAMIC_F2_BLKSIZE_FOR_NONLEGACY);
#endif /* USE_DYNAMIC_F2_BLKSIZE */
#ifndef CUSTOM_SET_ANTNPM
                if (FW_SUPPORTED(dhd, rsdb)) {
                        wl_config_t rsdb_mode;
                        memset(&rsdb_mode, 0, sizeof(rsdb_mode));
                        ret = dhd_iovar(dhd, 0, "rsdb_mode", (char *)&rsdb_mode, sizeof(rsdb_mode),
                                NULL, 0, TRUE);
                        if (ret < 0) {
                                DHD_ERROR(("%s Disable rsdb_mode is failed ret= %d\n",
                                        __FUNCTION__, ret));
                        }
                }
#endif /* !CUSTOM_SET_ANTNPM */
        } else {
                uint32 concurrent_mode = 0;
                if ((!op_mode && dhd_get_fw_mode(dhd->info) == DHD_FLAG_P2P_MODE) ||
                        (op_mode == DHD_FLAG_P2P_MODE)) {
#if defined(ARP_OFFLOAD_SUPPORT)
                        arpoe = 0;
#endif // endif
#ifdef PKT_FILTER_SUPPORT
                        dhd_pkt_filter_enable = FALSE;
#endif // endif
                        dhd->op_mode = DHD_FLAG_P2P_MODE;
                } else if ((!op_mode && dhd_get_fw_mode(dhd->info) == DHD_FLAG_IBSS_MODE) ||
                        (op_mode == DHD_FLAG_IBSS_MODE)) {
                        dhd->op_mode = DHD_FLAG_IBSS_MODE;
                } else
                        dhd->op_mode = DHD_FLAG_STA_MODE;
#if !defined(AP) && defined(WLP2P)
                if (dhd->op_mode != DHD_FLAG_IBSS_MODE &&
                        (concurrent_mode = dhd_get_concurrent_capabilites(dhd))) {
#if defined(ARP_OFFLOAD_SUPPORT)
                        arpoe = 1;
#endif // endif
                        dhd->op_mode |= concurrent_mode;
                }

                /* Check if we are enabling p2p */
                if (dhd->op_mode & DHD_FLAG_P2P_MODE) {
                        ret = dhd_iovar(dhd, 0, "apsta", (char *)&apsta, sizeof(apsta), NULL, 0,
                                        TRUE);
                        if (ret < 0)
                                DHD_ERROR(("%s APSTA for P2P failed ret= %d\n", __FUNCTION__, ret));

#if defined(SOFTAP_AND_GC)
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_AP,
                        (char *)&ap_mode, sizeof(ap_mode), TRUE, 0)) < 0) {
                                DHD_ERROR(("%s WLC_SET_AP failed %d\n", __FUNCTION__, ret));
                }
#endif // endif
                        memcpy(&p2p_ea, &dhd->mac, ETHER_ADDR_LEN);
                        ETHER_SET_LOCALADDR(&p2p_ea);
                        ret = dhd_iovar(dhd, 0, "p2p_da_override", (char *)&p2p_ea, sizeof(p2p_ea),
                                        NULL, 0, TRUE);
                        if (ret < 0)
                                DHD_ERROR(("%s p2p_da_override ret= %d\n", __FUNCTION__, ret));
                        else
                                DHD_INFO(("dhd_preinit_ioctls: p2p_da_override succeeded\n"));
                }
#else
        (void)concurrent_mode;
#endif // endif
        }

#ifdef DISABLE_PRUNED_SCAN
        if (FW_SUPPORTED(dhd, rsdb)) {
                ret = dhd_iovar(dhd, 0, "scan_features", (char *)&scan_features,
                                sizeof(scan_features), iovbuf, sizeof(iovbuf), FALSE);
                if (ret < 0) {
                        DHD_ERROR(("%s get scan_features is failed ret=%d\n",
                                __FUNCTION__, ret));
                } else {
                        memcpy(&scan_features, iovbuf, 4);
                        scan_features &= ~RSDB_SCAN_DOWNGRADED_CH_PRUNE_ROAM;
                        ret = dhd_iovar(dhd, 0, "scan_features", (char *)&scan_features,
                                        sizeof(scan_features), NULL, 0, TRUE);
                        if (ret < 0) {
                                DHD_ERROR(("%s set scan_features is failed ret=%d\n",
                                        __FUNCTION__, ret));
                        }
                }
        }
#endif /* DISABLE_PRUNED_SCAN */

        DHD_ERROR(("Firmware up: op_mode=0x%04x, MAC="MACDBG"\n",
                dhd->op_mode, MAC2STRDBG(dhd->mac.octet)));

#if defined(RXFRAME_THREAD) && defined(RXTHREAD_ONLYSTA)
        if (dhd->op_mode == DHD_FLAG_HOSTAP_MODE)
                dhd->info->rxthread_enabled = FALSE;
        else
                dhd->info->rxthread_enabled = TRUE;
#endif // endif
        /* Set Country code  */
        if (dhd->dhd_cspec.ccode[0] != 0) {
                ret = dhd_iovar(dhd, 0, "country", (char *)&dhd->dhd_cspec, sizeof(wl_country_t),
                                NULL, 0, TRUE);
                if (ret < 0)
                        DHD_ERROR(("%s: country code setting failed\n", __FUNCTION__));
        }

#ifdef DHD_2G_ONLY_SUPPORT
        DHD_ERROR(("Enabled DHD 2G only support!!\n"));
        ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_BAND, (char *)&band, sizeof(band), TRUE, 0);
        if (ret < 0) {
                DHD_ERROR(("%s Set Band B failed %d\n", __FUNCTION__, ret));
        }
#endif /* DHD_2G_ONLY_SUPPORT */

        /* Set Listen Interval */
        ret = dhd_iovar(dhd, 0, "assoc_listen", (char *)&listen_interval, sizeof(listen_interval),
                        NULL, 0, TRUE);
        if (ret < 0)
                DHD_ERROR(("%s assoc_listen failed %d\n", __FUNCTION__, ret));

#if defined(ROAM_ENABLE) || defined(DISABLE_BUILTIN_ROAM)
#ifdef USE_WFA_CERT_CONF
        if (sec_get_param_wfa_cert(dhd, SET_PARAM_ROAMOFF, &roamvar) == BCME_OK) {
                DHD_ERROR(("%s: read roam_off param =%d\n", __FUNCTION__, roamvar));
        }
#endif /* USE_WFA_CERT_CONF */
        /* Disable built-in roaming to allowed ext supplicant to take care of roaming */
        ret = dhd_iovar(dhd, 0, "roam_off", (char *)&roamvar, sizeof(roamvar), NULL, 0, TRUE);
#endif /* ROAM_ENABLE || DISABLE_BUILTIN_ROAM */
#if defined(ROAM_ENABLE)
#ifdef DISABLE_BCNLOSS_ROAM
        ret = dhd_iovar(dhd, 0, "roam_bcnloss_off", (char *)&roam_bcnloss_off,
                        sizeof(roam_bcnloss_off), NULL, 0, TRUE);
#endif /* DISABLE_BCNLOSS_ROAM */
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_ROAM_TRIGGER, roam_trigger,
                sizeof(roam_trigger), TRUE, 0)) < 0)
                DHD_ERROR(("%s: roam trigger set failed %d\n", __FUNCTION__, ret));
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_ROAM_SCAN_PERIOD, roam_scan_period,
                sizeof(roam_scan_period), TRUE, 0)) < 0)
                DHD_ERROR(("%s: roam scan period set failed %d\n", __FUNCTION__, ret));
        if ((dhd_wl_ioctl_cmd(dhd, WLC_SET_ROAM_DELTA, roam_delta,
                sizeof(roam_delta), TRUE, 0)) < 0)
                DHD_ERROR(("%s: roam delta set failed %d\n", __FUNCTION__, ret));
        ret = dhd_iovar(dhd, 0, "fullroamperiod", (char *)&roam_fullscan_period,
                        sizeof(roam_fullscan_period), NULL, 0, TRUE);
        if (ret < 0)
                DHD_ERROR(("%s: roam fullscan period set failed %d\n", __FUNCTION__, ret));
#ifdef ROAM_AP_ENV_DETECTION
        if (roam_trigger[0] == WL_AUTO_ROAM_TRIGGER) {
                if (dhd_iovar(dhd, 0, "roam_env_detection", (char *)&roam_env_mode,
                                sizeof(roam_env_mode), NULL, 0, TRUE) == BCME_OK)
                        dhd->roam_env_detection = TRUE;
                else
                        dhd->roam_env_detection = FALSE;
        }
#endif /* ROAM_AP_ENV_DETECTION */
#endif /* ROAM_ENABLE */

#ifdef CUSTOM_EVENT_PM_WAKE
        ret = dhd_iovar(dhd, 0, "const_awake_thresh", (char *)&pm_awake_thresh,
                        sizeof(pm_awake_thresh), NULL, 0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s set const_awake_thresh failed %d\n", __FUNCTION__, ret));
        }
#endif  /* CUSTOM_EVENT_PM_WAKE */
#ifdef OKC_SUPPORT
        ret = dhd_iovar(dhd, 0, "okc_enable", (char *)&okc, sizeof(okc), NULL, 0, TRUE);
#endif // endif
#ifdef BCMCCX
        ret = dhd_iovar(dhd, 0, "ccx_enable", (char *)&ccx, sizeof(ccx), NULL, 0, TRUE);
#endif /* BCMCCX */

#ifdef WLTDLS
        dhd->tdls_enable = FALSE;
        dhd_tdls_set_mode(dhd, false);
#endif /* WLTDLS */

#ifdef DHD_ENABLE_LPC
        /* Set lpc 1 */
        ret = dhd_iovar(dhd, 0, "lpc", (char *)&lpc, sizeof(lpc), NULL, 0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s Set lpc failed  %d\n", __FUNCTION__, ret));

                if (ret == BCME_NOTDOWN) {
                        uint wl_down = 1;
                        ret = dhd_wl_ioctl_cmd(dhd, WLC_DOWN,
                                (char *)&wl_down, sizeof(wl_down), TRUE, 0);
                        DHD_ERROR(("%s lpc fail WL_DOWN : %d, lpc = %d\n", __FUNCTION__, ret, lpc));

                        ret = dhd_iovar(dhd, 0, "lpc", (char *)&lpc, sizeof(lpc), NULL, 0, TRUE);
                        DHD_ERROR(("%s Set lpc ret --> %d\n", __FUNCTION__, ret));
                }
        }
#endif /* DHD_ENABLE_LPC */

#ifdef WLADPS
        if (dhd->op_mode & DHD_FLAG_STA_MODE) {
                if ((ret = dhd_enable_adps(dhd, ADPS_ENABLE)) != BCME_OK) {
                        DHD_ERROR(("%s dhd_enable_adps failed %d\n",
                                        __FUNCTION__, ret));
                }
        }
#endif /* WLADPS */

#ifdef DHD_PM_CONTROL_FROM_FILE
        sec_control_pm(dhd, &power_mode);
#else
        /* Set PowerSave mode */
        (void) dhd_wl_ioctl_cmd(dhd, WLC_SET_PM, (char *)&power_mode, sizeof(power_mode), TRUE, 0);
#endif /* DHD_PM_CONTROL_FROM_FILE */

#if defined(BCMSDIO)
        /* Match Host and Dongle rx alignment */
        ret = dhd_iovar(dhd, 0, "bus:txglomalign", (char *)&dongle_align, sizeof(dongle_align),
                        NULL, 0, TRUE);

#ifdef USE_WFA_CERT_CONF
        if (sec_get_param_wfa_cert(dhd, SET_PARAM_BUS_TXGLOM_MODE, &glom) == BCME_OK) {
                DHD_ERROR(("%s, read txglom param =%d\n", __FUNCTION__, glom));
        }
#endif /* USE_WFA_CERT_CONF */
        if (glom != DEFAULT_GLOM_VALUE) {
                DHD_INFO(("%s set glom=0x%X\n", __FUNCTION__, glom));
                ret = dhd_iovar(dhd, 0, "bus:txglom", (char *)&glom, sizeof(glom), NULL, 0, TRUE);
        }
#endif /* defined(BCMSDIO) */

        /* Setup timeout if Beacons are lost and roam is off to report link down */
        ret = dhd_iovar(dhd, 0, "bcn_timeout", (char *)&bcn_timeout, sizeof(bcn_timeout), NULL, 0,
                        TRUE);

        /* Setup assoc_retry_max count to reconnect target AP in dongle */
        ret = dhd_iovar(dhd, 0, "assoc_retry_max", (char *)&retry_max, sizeof(retry_max), NULL, 0,
                        TRUE);

#if defined(AP) && !defined(WLP2P)
        ret = dhd_iovar(dhd, 0, "apsta", (char *)&apsta, sizeof(apsta), NULL, 0, TRUE);

#endif /* defined(AP) && !defined(WLP2P) */

#ifdef MIMO_ANT_SETTING
        dhd_sel_ant_from_file(dhd);
#endif /* MIMO_ANT_SETTING */

#if defined(SOFTAP)
        if (ap_fw_loaded == TRUE) {
                dhd_wl_ioctl_cmd(dhd, WLC_SET_DTIMPRD, (char *)&dtim, sizeof(dtim), TRUE, 0);
        }
#endif // endif

#if defined(KEEP_ALIVE)
        {
        /* Set Keep Alive : be sure to use FW with -keepalive */
        int res;

#if defined(SOFTAP)
        if (ap_fw_loaded == FALSE)
#endif // endif
                if (!(dhd->op_mode &
                        (DHD_FLAG_HOSTAP_MODE | DHD_FLAG_MFG_MODE))) {
                        if ((res = dhd_keep_alive_onoff(dhd)) < 0)
                                DHD_ERROR(("%s set keeplive failed %d\n",
                                __FUNCTION__, res));
                }
        }
#endif /* defined(KEEP_ALIVE) */

#ifdef USE_WL_TXBF
        ret = dhd_iovar(dhd, 0, "txbf", (char *)&txbf, sizeof(txbf), NULL, 0, TRUE);
        if (ret < 0)
                DHD_ERROR(("%s Set txbf failed  %d\n", __FUNCTION__, ret));

#endif /* USE_WL_TXBF */

        ret = dhd_iovar(dhd, 0, "scancache", (char *)&scancache_enab, sizeof(scancache_enab), NULL,
                        0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s Set scancache failed %d\n", __FUNCTION__, ret));
        }

#ifdef DISABLE_TXBFR
        ret = dhd_iovar(dhd, 0, "txbf_bfr_cap", (char *)&txbf_bfr_cap, sizeof(txbf_bfr_cap), NULL,
                        0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s Clear txbf_bfr_cap failed  %d\n", __FUNCTION__, ret));
        }
#endif /* DISABLE_TXBFR */

#ifdef USE_WFA_CERT_CONF
#ifdef USE_WL_FRAMEBURST
         if (sec_get_param_wfa_cert(dhd, SET_PARAM_FRAMEBURST, &frameburst) == BCME_OK) {
                DHD_ERROR(("%s, read frameburst param=%d\n", __FUNCTION__, frameburst));
         }
#endif /* USE_WL_FRAMEBURST */
         g_frameburst = frameburst;
#endif /* USE_WFA_CERT_CONF */
#ifdef DISABLE_WL_FRAMEBURST_SOFTAP
        /* Disable Framebursting for SofAP */
        if (dhd->op_mode & DHD_FLAG_HOSTAP_MODE) {
                frameburst = 0;
        }
#endif /* DISABLE_WL_FRAMEBURST_SOFTAP */
        /* Set frameburst to value */
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_FAKEFRAG, (char *)&frameburst,
                sizeof(frameburst), TRUE, 0)) < 0) {
                DHD_INFO(("%s frameburst not supported  %d\n", __FUNCTION__, ret));
        }
#ifdef DHD_SET_FW_HIGHSPEED
        /* Set ack_ratio */
        ret = dhd_iovar(dhd, 0, "ack_ratio", (char *)&ack_ratio, sizeof(ack_ratio), NULL, 0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s Set ack_ratio failed  %d\n", __FUNCTION__, ret));
        }

        /* Set ack_ratio_depth */
        ret = dhd_iovar(dhd, 0, "ack_ratio_depth", (char *)&ack_ratio_depth,
                        sizeof(ack_ratio_depth), NULL, 0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s Set ack_ratio_depth failed  %d\n", __FUNCTION__, ret));
        }
#endif /* DHD_SET_FW_HIGHSPEED */

        iov_buf = (char*)MALLOC(dhd->osh, WLC_IOCTL_SMLEN);
        if (iov_buf == NULL) {
                DHD_ERROR(("failed to allocate %d bytes for iov_buf\n", WLC_IOCTL_SMLEN));
                ret = BCME_NOMEM;
                goto done;
        }

#ifdef WLAIBSS
        /* Apply AIBSS configurations */
        if ((ret = dhd_preinit_aibss_ioctls(dhd, iov_buf)) != BCME_OK) {
                DHD_ERROR(("%s dhd_preinit_aibss_ioctls failed %d\n",
                                __FUNCTION__, ret));
                goto done;
        }
#endif /* WLAIBSS */

#if defined(CUSTOM_AMPDU_BA_WSIZE) || (defined(WLAIBSS) && \
        defined(CUSTOM_IBSS_AMPDU_BA_WSIZE))
        /* Set ampdu ba wsize to 64 or 16 */
#ifdef CUSTOM_AMPDU_BA_WSIZE
        ampdu_ba_wsize = CUSTOM_AMPDU_BA_WSIZE;
#endif // endif
#if defined(WLAIBSS) && defined(CUSTOM_IBSS_AMPDU_BA_WSIZE)
        if (dhd->op_mode == DHD_FLAG_IBSS_MODE)
                ampdu_ba_wsize = CUSTOM_IBSS_AMPDU_BA_WSIZE;
#endif /* WLAIBSS && CUSTOM_IBSS_AMPDU_BA_WSIZE */
        if (ampdu_ba_wsize != 0) {
                ret = dhd_iovar(dhd, 0, "ampdu_ba_wsize", (char *)&ampdu_ba_wsize,
                                sizeof(ampdu_ba_wsize), NULL, 0, TRUE);
                if (ret < 0) {
                        DHD_ERROR(("%s Set ampdu_ba_wsize to %d failed  %d\n",
                                __FUNCTION__, ampdu_ba_wsize, ret));
                }
        }
#endif /* CUSTOM_AMPDU_BA_WSIZE || (WLAIBSS && CUSTOM_IBSS_AMPDU_BA_WSIZE) */

#if defined(CUSTOM_AMPDU_MPDU)
        ampdu_mpdu = CUSTOM_AMPDU_MPDU;
        if (ampdu_mpdu != 0 && (ampdu_mpdu <= ampdu_ba_wsize)) {
                ret = dhd_iovar(dhd, 0, "ampdu_mpdu", (char *)&ampdu_mpdu, sizeof(ampdu_mpdu),
                                NULL, 0, TRUE);
                if (ret < 0) {
                        DHD_ERROR(("%s Set ampdu_mpdu to %d failed  %d\n",
                                __FUNCTION__, CUSTOM_AMPDU_MPDU, ret));
                }
        }
#endif /* CUSTOM_AMPDU_MPDU */

#if defined(CUSTOM_AMPDU_RELEASE)
        ampdu_release = CUSTOM_AMPDU_RELEASE;
        if (ampdu_release != 0 && (ampdu_release <= ampdu_ba_wsize)) {
                ret = dhd_iovar(dhd, 0, "ampdu_release", (char *)&ampdu_release,
                                sizeof(ampdu_release), NULL, 0, TRUE);
                if (ret < 0) {
                        DHD_ERROR(("%s Set ampdu_release to %d failed  %d\n",
                                __FUNCTION__, CUSTOM_AMPDU_RELEASE, ret));
                }
        }
#endif /* CUSTOM_AMPDU_RELEASE */

#if defined(CUSTOM_AMSDU_AGGSF)
        amsdu_aggsf = CUSTOM_AMSDU_AGGSF;
        if (amsdu_aggsf != 0) {
                ret = dhd_iovar(dhd, 0, "amsdu_aggsf", (char *)&amsdu_aggsf, sizeof(amsdu_aggsf),
                                NULL, 0, TRUE);
                if (ret < 0) {
                        DHD_ERROR(("%s Set amsdu_aggsf to %d failed  %d\n",
                                __FUNCTION__, CUSTOM_AMSDU_AGGSF, ret));
                }
        }
#endif /* CUSTOM_AMSDU_AGGSF */

#if defined(BCMSUP_4WAY_HANDSHAKE)
        /* Read 4-way handshake requirements */
        if (dhd_use_idsup == 1) {
                ret = dhd_iovar(dhd, 0, "sup_wpa", (char *)&sup_wpa, sizeof(sup_wpa),
                                (char *)&iovbuf, sizeof(iovbuf), FALSE);
                /* sup_wpa iovar returns NOTREADY status on some platforms using modularized
                 * in-dongle supplicant.
                 */
                if (ret >= 0 || ret == BCME_NOTREADY)
                        dhd->fw_4way_handshake = TRUE;
                DHD_TRACE(("4-way handshake mode is: %d\n", dhd->fw_4way_handshake));
        }
#endif /* BCMSUP_4WAY_HANDSHAKE */
#if defined(SUPPORT_2G_VHT) || defined(SUPPORT_5G_1024QAM_VHT)
        ret = dhd_iovar(dhd, 0, "vht_features", NULL, 0,
                        (char *)&vht_features, sizeof(vht_features), FALSE);
        if (ret < 0) {
                DHD_ERROR(("%s vht_features get failed %d\n", __FUNCTION__, ret));
                vht_features = 0;
        } else {
#ifdef SUPPORT_2G_VHT
                vht_features |= 0x3; /* 2G support */
#endif /* SUPPORT_2G_VHT */
#ifdef SUPPORT_5G_1024QAM_VHT
                vht_features |= 0x6; /* 5G 1024 QAM support */
#endif /* SUPPORT_5G_1024QAM_VHT */
        }
        if (vht_features) {
                ret = dhd_iovar(dhd, 0, "vht_features", (char *)&vht_features, sizeof(vht_features),
                                NULL, 0, TRUE);
                if (ret < 0) {
                        DHD_ERROR(("%s vht_features set failed %d\n", __FUNCTION__, ret));

                        if (ret == BCME_NOTDOWN) {
                                uint wl_down = 1;
                                ret = dhd_wl_ioctl_cmd(dhd, WLC_DOWN,
                                        (char *)&wl_down, sizeof(wl_down), TRUE, 0);
                                DHD_ERROR(("%s vht_features fail WL_DOWN : %d,"
                                        " vht_features = 0x%x\n",
                                        __FUNCTION__, ret, vht_features));

                                ret = dhd_iovar(dhd, 0, "vht_features", (char *)&vht_features,
                                                sizeof(vht_features), NULL, 0, TRUE);

                                DHD_ERROR(("%s vht_features set. ret --> %d\n", __FUNCTION__, ret));
                        }
                }
        }
#endif /* SUPPORT_2G_VHT || SUPPORT_5G_1024QAM_VHT */
#ifdef DISABLE_11N_PROPRIETARY_RATES
        ret = dhd_iovar(dhd, 0, "ht_features", (char *)&ht_features, sizeof(ht_features), NULL, 0,
                        TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s ht_features set failed %d\n", __FUNCTION__, ret));
        }
#endif /* DISABLE_11N_PROPRIETARY_RATES */
#ifdef DHD_DISABLE_VHTMODE
        dhd_disable_vhtmode(dhd);
#endif /* DHD_DISABLE_VHTMODE */

        ret = dhd_iovar(dhd, 0, "buf_key_b4_m4", (char *)&buf_key_b4_m4, sizeof(buf_key_b4_m4),
                        NULL, 0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s buf_key_b4_m4 set failed %d\n", __FUNCTION__, ret));
        }
#ifdef SUPPORT_SET_CAC
        ret = dhd_iovar(dhd, 0, "cac", (char *)&cac, sizeof(cac), NULL, 0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s Failed to set cac to %d, %d\n", __FUNCTION__, cac, ret));
        }
#endif /* SUPPORT_SET_CAC */
#ifdef DHD_ULP
        /* Get the required details from dongle during preinit ioctl */
        dhd_ulp_preinit(dhd);
#endif /* DHD_ULP */

        /* Read event_msgs mask */
        ret = dhd_iovar(dhd, 0, "event_msgs", eventmask, WL_EVENTING_MASK_LEN, iovbuf,
                        sizeof(iovbuf), FALSE);
        if (ret < 0) {
                DHD_ERROR(("%s read Event mask failed %d\n", __FUNCTION__, ret));
                goto done;
        }
        bcopy(iovbuf, eventmask, WL_EVENTING_MASK_LEN);

        /* Setup event_msgs */
        setbit(eventmask, WLC_E_SET_SSID);
        setbit(eventmask, WLC_E_PRUNE);
        setbit(eventmask, WLC_E_AUTH);
        setbit(eventmask, WLC_E_AUTH_IND);
        setbit(eventmask, WLC_E_ASSOC);
        setbit(eventmask, WLC_E_REASSOC);
        setbit(eventmask, WLC_E_REASSOC_IND);
        if (!(dhd->op_mode & DHD_FLAG_IBSS_MODE))
                setbit(eventmask, WLC_E_DEAUTH);
        setbit(eventmask, WLC_E_DEAUTH_IND);
        setbit(eventmask, WLC_E_DISASSOC_IND);
        setbit(eventmask, WLC_E_DISASSOC);
        setbit(eventmask, WLC_E_JOIN);
        setbit(eventmask, WLC_E_START);
        setbit(eventmask, WLC_E_ASSOC_IND);
        setbit(eventmask, WLC_E_PSK_SUP);
        setbit(eventmask, WLC_E_LINK);
        setbit(eventmask, WLC_E_MIC_ERROR);
        setbit(eventmask, WLC_E_ASSOC_REQ_IE);
        setbit(eventmask, WLC_E_ASSOC_RESP_IE);
#ifdef LIMIT_BORROW
        setbit(eventmask, WLC_E_ALLOW_CREDIT_BORROW);
#endif // endif
#ifndef WL_CFG80211
        setbit(eventmask, WLC_E_PMKID_CACHE);
        setbit(eventmask, WLC_E_TXFAIL);
#endif // endif
        setbit(eventmask, WLC_E_JOIN_START);
        setbit(eventmask, WLC_E_SCAN_COMPLETE);
#ifdef DHD_DEBUG
        setbit(eventmask, WLC_E_SCAN_CONFIRM_IND);
#endif // endif
#ifdef PNO_SUPPORT
        setbit(eventmask, WLC_E_PFN_NET_FOUND);
        setbit(eventmask, WLC_E_PFN_BEST_BATCHING);
        setbit(eventmask, WLC_E_PFN_BSSID_NET_FOUND);
        setbit(eventmask, WLC_E_PFN_BSSID_NET_LOST);
#endif /* PNO_SUPPORT */
        /* enable dongle roaming event */
#ifdef WL_CFG80211
#if !defined(ROAM_EVT_DISABLE)
        setbit(eventmask, WLC_E_ROAM);
#endif /* !ROAM_EVT_DISABLE */
        setbit(eventmask, WLC_E_BSSID);
#endif /* WL_CFG80211 */
#ifdef BCMCCX
        setbit(eventmask, WLC_E_ADDTS_IND);
        setbit(eventmask, WLC_E_DELTS_IND);
#endif /* BCMCCX */
#ifdef WLTDLS
        setbit(eventmask, WLC_E_TDLS_PEER_EVENT);
#endif /* WLTDLS */
#ifdef RTT_SUPPORT
        setbit(eventmask, WLC_E_PROXD);
#endif /* RTT_SUPPORT */
#ifdef WL_CFG80211
        setbit(eventmask, WLC_E_ESCAN_RESULT);
        setbit(eventmask, WLC_E_AP_STARTED);
        setbit(eventmask, WLC_E_ACTION_FRAME_RX);
        if (dhd->op_mode & DHD_FLAG_P2P_MODE) {
                setbit(eventmask, WLC_E_P2P_DISC_LISTEN_COMPLETE);
        }
#endif /* WL_CFG80211 */
#ifdef WLAIBSS
        setbit(eventmask, WLC_E_AIBSS_TXFAIL);
#endif /* WLAIBSS */

#if defined(SHOW_LOGTRACE) && defined(LOGTRACE_FROM_FILE)
        if (dhd_logtrace_from_file(dhd)) {
                setbit(eventmask, WLC_E_TRACE);
        } else {
                clrbit(eventmask, WLC_E_TRACE);
        }
#elif defined(SHOW_LOGTRACE)
        setbit(eventmask, WLC_E_TRACE);
#else
        clrbit(eventmask, WLC_E_TRACE);
#endif /* defined(SHOW_LOGTRACE) && defined(LOGTRACE_FROM_FILE) */

        setbit(eventmask, WLC_E_CSA_COMPLETE_IND);
#ifdef CUSTOM_EVENT_PM_WAKE
        setbit(eventmask, WLC_E_EXCESS_PM_WAKE_EVENT);
#endif  /* CUSTOM_EVENT_PM_WAKE */
#ifdef DHD_LOSSLESS_ROAMING
        setbit(eventmask, WLC_E_ROAM_PREP);
#endif // endif
        /* nan events */
        setbit(eventmask, WLC_E_NAN);
#if defined(PCIE_FULL_DONGLE) && defined(DHD_LOSSLESS_ROAMING)
        dhd_update_flow_prio_map(dhd, DHD_FLOW_PRIO_LLR_MAP);
#endif /* defined(PCIE_FULL_DONGLE) && defined(DHD_LOSSLESS_ROAMING) */

#if defined(BCMPCIE) && defined(EAPOL_PKT_PRIO)
        dhd_update_flow_prio_map(dhd, DHD_FLOW_PRIO_LLR_MAP);
#endif /* defined(BCMPCIE) && defined(EAPOL_PKT_PRIO) */

        /* Write updated Event mask */
        ret = dhd_iovar(dhd, 0, "event_msgs", eventmask, WL_EVENTING_MASK_LEN, NULL, 0, TRUE);
        if (ret < 0) {
                DHD_ERROR(("%s Set Event mask failed %d\n", __FUNCTION__, ret));
                goto done;
        }

        /* make up event mask ext message iovar for event larger than 128 */
        msglen = ROUNDUP(WLC_E_LAST, NBBY)/NBBY + EVENTMSGS_EXT_STRUCT_SIZE;
        eventmask_msg = (eventmsgs_ext_t*)MALLOC(dhd->osh, msglen);
        if (eventmask_msg == NULL) {
                DHD_ERROR(("failed to allocate %d bytes for event_msg_ext\n", msglen));
                ret = BCME_NOMEM;
                goto done;
        }
        bzero(eventmask_msg, msglen);
        eventmask_msg->ver = EVENTMSGS_VER;
        eventmask_msg->len = ROUNDUP(WLC_E_LAST, NBBY)/NBBY;

        /* Read event_msgs_ext mask */
        ret2 = dhd_iovar(dhd, 0, "event_msgs_ext", (char *)eventmask_msg, msglen, iov_buf,
                        WLC_IOCTL_SMLEN, FALSE);

        if (ret2 == 0) { /* event_msgs_ext must be supported */
                bcopy(iov_buf, eventmask_msg, msglen);
#ifdef RSSI_MONITOR_SUPPORT
                setbit(eventmask_msg->mask, WLC_E_RSSI_LQM);
#endif /* RSSI_MONITOR_SUPPORT */
#ifdef GSCAN_SUPPORT
                setbit(eventmask_msg->mask, WLC_E_PFN_GSCAN_FULL_RESULT);
                setbit(eventmask_msg->mask, WLC_E_PFN_SCAN_COMPLETE);
                setbit(eventmask_msg->mask, WLC_E_PFN_SSID_EXT);
                setbit(eventmask_msg->mask, WLC_E_ROAM_EXP_EVENT);
#endif /* GSCAN_SUPPORT */
                setbit(eventmask_msg->mask, WLC_E_RSSI_LQM);
#ifdef BT_WIFI_HANDOVER
                setbit(eventmask_msg->mask, WLC_E_BT_WIFI_HANDOVER_REQ);
#endif /* BT_WIFI_HANDOVER */
#ifdef DBG_PKT_MON
                setbit(eventmask_msg->mask, WLC_E_ROAM_PREP);
#endif /* DBG_PKT_MON */
#ifdef DHD_ULP
                setbit(eventmask_msg->mask, WLC_E_ULP);
#endif // endif
#ifdef WL_NATOE
                setbit(eventmask_msg->mask, WLC_E_NATOE_NFCT);
#endif /* WL_NATOE */
#ifdef WL_NAN
                setbit(eventmask_msg->mask, WLC_E_SLOTTED_BSS_PEER_OP);
#endif /* WL_NAN */
#ifdef SUPPORT_EVT_SDB_LOG
                setbit(eventmask_msg->mask, WLC_E_SDB_TRANSITION);
#endif /* SUPPORT_EVT_SDB_LOG */
#ifdef WL_BCNRECV
                setbit(eventmask_msg->mask, WLC_E_BCNRECV_ABORTED);
#endif /* WL_BCNRECV */
                /* Write updated Event mask */
                eventmask_msg->ver = EVENTMSGS_VER;
                eventmask_msg->command = EVENTMSGS_SET_MASK;
                eventmask_msg->len = ROUNDUP(WLC_E_LAST, NBBY)/NBBY;
                ret = dhd_iovar(dhd, 0, "event_msgs_ext", (char *)eventmask_msg, msglen, NULL, 0,
                                TRUE);
                if (ret < 0) {
                        DHD_ERROR(("%s write event mask ext failed %d\n", __FUNCTION__, ret));
                        goto done;
                }
        } else if (ret2 == BCME_UNSUPPORTED || ret2 == BCME_VERSION) {
                /* Skip for BCME_UNSUPPORTED or BCME_VERSION */
                DHD_ERROR(("%s event_msgs_ext not support or version mismatch %d\n",
                        __FUNCTION__, ret2));
        } else {
                DHD_ERROR(("%s read event mask ext failed %d\n", __FUNCTION__, ret2));
                ret = ret2;
                goto done;
        }

#if defined(DHD_8021X_DUMP) && defined(SHOW_LOGTRACE)
        /* Enabling event log trace for EAP events */
        el_tag = (wl_el_tag_params_t *)MALLOC(dhd->osh, sizeof(wl_el_tag_params_t));
        if (el_tag == NULL) {
                DHD_ERROR(("failed to allocate %d bytes for event_msg_ext\n",
                                (int)sizeof(wl_el_tag_params_t)));
                ret = BCME_NOMEM;
                goto done;
        }
        el_tag->tag = EVENT_LOG_TAG_4WAYHANDSHAKE;
        el_tag->set = 1;
        el_tag->flags = EVENT_LOG_TAG_FLAG_LOG;
        ret = dhd_iovar(dhd, 0, "event_log_tag_control", (char *)el_tag, sizeof(*el_tag), NULL, 0,
                        TRUE);
#endif /* DHD_8021X_DUMP */

        dhd_wl_ioctl_cmd(dhd, WLC_SET_SCAN_CHANNEL_TIME, (char *)&scan_assoc_time,
                        sizeof(scan_assoc_time), TRUE, 0);
        dhd_wl_ioctl_cmd(dhd, WLC_SET_SCAN_UNASSOC_TIME, (char *)&scan_unassoc_time,
                        sizeof(scan_unassoc_time), TRUE, 0);
        dhd_wl_ioctl_cmd(dhd, WLC_SET_SCAN_PASSIVE_TIME, (char *)&scan_passive_time,
                        sizeof(scan_passive_time), TRUE, 0);

#ifdef ARP_OFFLOAD_SUPPORT
        /* Set and enable ARP offload feature for STA only  */
#if defined(SOFTAP)
        if (arpoe && !ap_fw_loaded) {
#else
        if (arpoe) {
#endif // endif
                dhd_arp_offload_enable(dhd, TRUE);
                dhd_arp_offload_set(dhd, dhd_arp_mode);
        } else {
                dhd_arp_offload_enable(dhd, FALSE);
                dhd_arp_offload_set(dhd, 0);
        }
        dhd_arp_enable = arpoe;
#endif /* ARP_OFFLOAD_SUPPORT */

#ifdef PKT_FILTER_SUPPORT
        /* Setup default defintions for pktfilter , enable in suspend */
        dhd->pktfilter_count = 6;
        dhd->pktfilter[DHD_BROADCAST_FILTER_NUM] = NULL;
        if (!FW_SUPPORTED(dhd, pf6)) {
                dhd->pktfilter[DHD_MULTICAST4_FILTER_NUM] = NULL;
                dhd->pktfilter[DHD_MULTICAST6_FILTER_NUM] = NULL;
        } else {
                /* Immediately pkt filter TYPE 6 Discard IPv4/IPv6 Multicast Packet */
                dhd->pktfilter[DHD_MULTICAST4_FILTER_NUM] = DISCARD_IPV4_MCAST;
                dhd->pktfilter[DHD_MULTICAST6_FILTER_NUM] = DISCARD_IPV6_MCAST;
        }
        /* apply APP pktfilter */
        dhd->pktfilter[DHD_ARP_FILTER_NUM] = "105 0 0 12 0xFFFF 0x0806";

#ifdef BLOCK_IPV6_PACKET
        /* Setup filter to allow only IPv4 unicast frames */
        dhd->pktfilter[DHD_UNICAST_FILTER_NUM] = "100 0 0 0 "
                HEX_PREF_STR UNI_FILTER_STR ZERO_ADDR_STR ETHER_TYPE_STR IPV6_FILTER_STR
                " "
                HEX_PREF_STR ZERO_ADDR_STR ZERO_ADDR_STR ETHER_TYPE_STR ZERO_TYPE_STR;
#else
        /* Setup filter to allow only unicast */
        dhd->pktfilter[DHD_UNICAST_FILTER_NUM] = "100 0 0 0 0x01 0x00";
#endif /* BLOCK_IPV6_PACKET */

#ifdef PASS_IPV4_SUSPEND
        dhd->pktfilter[DHD_MDNS_FILTER_NUM] = "104 0 0 0 0xFFFFFF 0x01005E";
#else
        /* Add filter to pass multicastDNS packet and NOT filter out as Broadcast */
        dhd->pktfilter[DHD_MDNS_FILTER_NUM] = NULL;
#endif /* PASS_IPV4_SUSPEND */
        if (FW_SUPPORTED(dhd, pf6)) {
                /* Immediately pkt filter TYPE 6 Dicard Broadcast IP packet */
                dhd->pktfilter[DHD_IP4BCAST_DROP_FILTER_NUM] = DISCARD_IPV4_BCAST;
                /* Immediately pkt filter TYPE 6 Dicard Cisco STP packet */
                dhd->pktfilter[DHD_LLC_STP_DROP_FILTER_NUM] = DISCARD_LLC_STP;
                /* Immediately pkt filter TYPE 6 Dicard Cisco XID protocol */
                dhd->pktfilter[DHD_LLC_XID_DROP_FILTER_NUM] = DISCARD_LLC_XID;
                dhd->pktfilter_count = 10;
        }

#ifdef GAN_LITE_NAT_KEEPALIVE_FILTER
        dhd->pktfilter_count = 4;
        /* Setup filter to block broadcast and NAT Keepalive packets */
        /* discard all broadcast packets */
        dhd->pktfilter[DHD_UNICAST_FILTER_NUM] = "100 0 0 0 0xffffff 0xffffff";
        /* discard NAT Keepalive packets */
        dhd->pktfilter[DHD_BROADCAST_FILTER_NUM] = "102 0 0 36 0xffffffff 0x11940009";
        /* discard NAT Keepalive packets */
        dhd->pktfilter[DHD_MULTICAST4_FILTER_NUM] = "104 0 0 38 0xffffffff 0x11940009";
        dhd->pktfilter[DHD_MULTICAST6_FILTER_NUM] = NULL;
#endif /* GAN_LITE_NAT_KEEPALIVE_FILTER */

#if defined(SOFTAP)
        if (ap_fw_loaded) {
                dhd_enable_packet_filter(0, dhd);
        }
#endif /* defined(SOFTAP) */
        dhd_set_packet_filter(dhd);
#endif /* PKT_FILTER_SUPPORT */
#ifdef DISABLE_11N
        ret = dhd_iovar(dhd, 0, "nmode", (char *)&nmode, sizeof(nmode), NULL, 0, TRUE);
        if (ret < 0)
                DHD_ERROR(("%s wl nmode 0 failed %d\n", __FUNCTION__, ret));
#endif /* DISABLE_11N */

#ifdef ENABLE_BCN_LI_BCN_WAKEUP
        ret = dhd_iovar(dhd, 0, "bcn_li_bcn", (char *)&bcn_li_bcn, sizeof(bcn_li_bcn), NULL, 0,
                        TRUE);
#endif /* ENABLE_BCN_LI_BCN_WAKEUP */
#ifdef AMPDU_VO_ENABLE
        tid.tid = PRIO_8021D_VO; /* Enable TID(6) for voice */
        tid.enable = TRUE;
        ret = dhd_iovar(dhd, 0, "ampdu_tid", (char *)&tid, sizeof(tid), NULL, 0, TRUE);

        tid.tid = PRIO_8021D_NC; /* Enable TID(7) for voice */
        tid.enable = TRUE;
        ret = dhd_iovar(dhd, 0, "ampdu_tid", (char *)&tid, sizeof(tid), NULL, 0, TRUE);
#endif // endif
        /* query for 'clmver' to get clm version info from firmware */
        memset(buf, 0, sizeof(buf));
        ret = dhd_iovar(dhd, 0, "clmver", NULL, 0, buf, sizeof(buf), FALSE);
        if (ret < 0)
                DHD_ERROR(("%s failed %d\n", __FUNCTION__, ret));
        else {
                char *ver_temp_buf = NULL;

                if ((ver_temp_buf = bcmstrstr(buf, "Data:")) == NULL) {
                        DHD_ERROR(("Couldn't find \"Data:\"\n"));
                } else {
                        ptr = (ver_temp_buf + strlen("Data:"));
                        if ((ver_temp_buf = bcmstrtok(&ptr, "\n", 0)) == NULL) {
                                DHD_ERROR(("Couldn't find New line character\n"));
                        } else {
                                memset(clm_version, 0, CLM_VER_STR_LEN);
                                strncpy(clm_version, ver_temp_buf,
                                        MIN(strlen(ver_temp_buf) + 1, CLM_VER_STR_LEN - 1));
                                DHD_INFO(("CLM version = %s\n", clm_version));
                        }
                }

#if defined(CUSTOMER_HW4_DEBUG)
                if ((ver_temp_buf = bcmstrstr(ptr, "Customization:")) == NULL) {
                        DHD_ERROR(("Couldn't find \"Customization:\"\n"));
                } else {
                        char tokenlim;
                        ptr = (ver_temp_buf + strlen("Customization:"));
                        if ((ver_temp_buf = bcmstrtok(&ptr, "(\n", &tokenlim)) == NULL) {
                                DHD_ERROR(("Couldn't find project blob version"
                                        "or New line character\n"));
                        } else if (tokenlim == '(') {
                                snprintf(clm_version,
                                        CLM_VER_STR_LEN - 1, "%s, Blob ver = Major : %s minor : ",
                                        clm_version, ver_temp_buf);
                                DHD_INFO(("[INFO]CLM/Blob version = %s\n", clm_version));
                                if ((ver_temp_buf = bcmstrtok(&ptr, "\n", &tokenlim)) == NULL) {
                                        DHD_ERROR(("Couldn't find New line character\n"));
                                } else {
                                        snprintf(clm_version,
                                                strlen(clm_version) + strlen(ver_temp_buf),
                                                "%s%s", clm_version, ver_temp_buf);
                                        DHD_INFO(("[INFO]CLM/Blob/project version = %s\n",
                                                clm_version));

                                }
                        } else if (tokenlim == '\n') {
                                snprintf(clm_version,
                                        strlen(clm_version) + strlen(", Blob ver = Major : ") + 1,
                                        "%s, Blob ver = Major : ", clm_version);
                                snprintf(clm_version,
                                        strlen(clm_version) + strlen(ver_temp_buf) + 1,
                                        "%s%s", clm_version, ver_temp_buf);
                                DHD_INFO(("[INFO]CLM/Blob/project version = %s\n", clm_version));
                        }
                }
#endif /* CUSTOMER_HW4_DEBUG */
                if (strlen(clm_version)) {
                        DHD_ERROR(("CLM version = %s\n", clm_version));
                } else {
                        DHD_ERROR(("Couldn't find CLM version!\n"));
                }
        }

        /* query for 'ver' to get version info from firmware */
        memset(buf, 0, sizeof(buf));
        ptr = buf;
        ret = dhd_iovar(dhd, 0, "ver", NULL, 0, (char *)&buf, sizeof(buf), FALSE);
        if (ret < 0)
                DHD_ERROR(("%s failed %d\n", __FUNCTION__, ret));
        else {
                bcmstrtok(&ptr, "\n", 0);
                /* Print fw version info */
                DHD_ERROR(("Firmware version = %s\n", buf));
                strncpy(fw_version, buf, FW_VER_STR_LEN);
                fw_version[FW_VER_STR_LEN-1] = '\0';
#if defined(BCMSDIO) || defined(BCMPCIE)
                dhd_set_version_info(dhd, buf);
#endif /* BCMSDIO || BCMPCIE */
#ifdef WRITE_WLANINFO
                sec_save_wlinfo(buf, EPI_VERSION_STR, dhd->info->nv_path, clm_version);
#endif /* WRITE_WLANINFO */
        }
#ifdef GEN_SOFTAP_INFO_FILE
        sec_save_softap_info();
#endif /* GEN_SOFTAP_INFO_FILE */

#if defined(BCMSDIO)
        dhd_txglom_enable(dhd, TRUE);
#endif /* defined(BCMSDIO) */

#if defined(BCMSDIO)
#ifdef PROP_TXSTATUS
        if (disable_proptx ||
#ifdef PROP_TXSTATUS_VSDB
                /* enable WLFC only if the firmware is VSDB when it is in STA mode */
                (dhd->op_mode != DHD_FLAG_HOSTAP_MODE &&
                 dhd->op_mode != DHD_FLAG_IBSS_MODE) ||
#endif /* PROP_TXSTATUS_VSDB */
                FALSE) {
                wlfc_enable = FALSE;
        }

#if defined(PROP_TXSTATUS)
#ifdef USE_WFA_CERT_CONF
        if (sec_get_param_wfa_cert(dhd, SET_PARAM_PROPTX, &proptx) == BCME_OK) {
                DHD_ERROR(("%s , read proptx param=%d\n", __FUNCTION__, proptx));
                wlfc_enable = proptx;
        }
#endif /* USE_WFA_CERT_CONF */
#endif /* PROP_TXSTATUS */

#ifndef DISABLE_11N
        ret2 = dhd_iovar(dhd, 0, "ampdu_hostreorder", (char *)&hostreorder, sizeof(hostreorder),
                        NULL, 0, TRUE);
        if (ret2 < 0) {
                DHD_ERROR(("%s wl ampdu_hostreorder failed %d\n", __FUNCTION__, ret2));
                if (ret2 != BCME_UNSUPPORTED)
                        ret = ret2;

                if (ret == BCME_NOTDOWN) {
                        uint wl_down = 1;
                        ret2 = dhd_wl_ioctl_cmd(dhd, WLC_DOWN, (char *)&wl_down,
                                sizeof(wl_down), TRUE, 0);
                        DHD_ERROR(("%s ampdu_hostreorder fail WL_DOWN : %d, hostreorder :%d\n",
                                __FUNCTION__, ret2, hostreorder));

                        ret2 = dhd_iovar(dhd, 0, "ampdu_hostreorder", (char *)&hostreorder,
                                        sizeof(hostreorder), NULL, 0, TRUE);
                        DHD_ERROR(("%s wl ampdu_hostreorder. ret --> %d\n", __FUNCTION__, ret2));
                        if (ret2 != BCME_UNSUPPORTED)
                                        ret = ret2;
                }
                if (ret2 != BCME_OK)
                        hostreorder = 0;
        }
#endif /* DISABLE_11N */

        if (wlfc_enable)
                dhd_wlfc_init(dhd);
#ifndef DISABLE_11N
        else if (hostreorder)
                dhd_wlfc_hostreorder_init(dhd);
#endif /* DISABLE_11N */

#endif /* PROP_TXSTATUS */
#endif /* BCMSDIO || BCMBUS */
#ifndef PCIE_FULL_DONGLE
        /* For FD we need all the packets at DHD to handle intra-BSS forwarding */
        if (FW_SUPPORTED(dhd, ap)) {
                wl_ap_isolate = AP_ISOLATE_SENDUP_ALL;
                ret = dhd_iovar(dhd, 0, "ap_isolate", (char *)&wl_ap_isolate, sizeof(wl_ap_isolate),
                                NULL, 0, TRUE);
                if (ret < 0)
                        DHD_ERROR(("%s failed %d\n", __FUNCTION__, ret));
        }
#endif /* PCIE_FULL_DONGLE */
#ifdef PNO_SUPPORT
        if (!dhd->pno_state) {
                dhd_pno_init(dhd);
        }
#endif // endif
#ifdef RTT_SUPPORT
        if (!dhd->rtt_state) {
                ret = dhd_rtt_init(dhd);
                if (ret < 0) {
                        DHD_ERROR(("%s failed to initialize RTT\n", __FUNCTION__));
                }
        }
#endif // endif
#ifdef FILTER_IE
        /* Failure to configure filter IE is not a fatal error, ignore it. */
        if (!(dhd->op_mode & (DHD_FLAG_HOSTAP_MODE | DHD_FLAG_MFG_MODE)))
                dhd_read_from_file(dhd);
#endif /* FILTER_IE */
#ifdef WL11U
        dhd_interworking_enable(dhd);
#endif /* WL11U */

#ifdef NDO_CONFIG_SUPPORT
        dhd->ndo_enable = FALSE;
        dhd->ndo_host_ip_overflow = FALSE;
        dhd->ndo_max_host_ip = NDO_MAX_HOST_IP_ENTRIES;
#endif /* NDO_CONFIG_SUPPORT */

        /* ND offload version supported */
        dhd->ndo_version = dhd_ndo_get_version(dhd);
        if (dhd->ndo_version > 0) {
                DHD_INFO(("%s: ndo version %d\n", __FUNCTION__, dhd->ndo_version));

#ifdef NDO_CONFIG_SUPPORT
                /* enable Unsolicited NA filter */
                ret = dhd_ndo_unsolicited_na_filter_enable(dhd, 1);
                if (ret < 0) {
                        DHD_ERROR(("%s failed to enable Unsolicited NA filter\n", __FUNCTION__));
                }
#endif /* NDO_CONFIG_SUPPORT */
        }

        /* check dongle supports wbtext (product policy) or not */
        dhd->wbtext_support = FALSE;
        if (dhd_wl_ioctl_get_intiovar(dhd, "wnm_bsstrans_resp", &wnm_bsstrans_resp,
                        WLC_GET_VAR, FALSE, 0) != BCME_OK) {
                DHD_ERROR(("failed to get wnm_bsstrans_resp\n"));
        }
        dhd->wbtext_policy = wnm_bsstrans_resp;
        if (dhd->wbtext_policy == WL_BSSTRANS_POLICY_PRODUCT_WBTEXT) {
                dhd->wbtext_support = TRUE;
        }
#ifndef WBTEXT
        /* driver can turn off wbtext feature through makefile */
        if (dhd->wbtext_support) {
                if (dhd_wl_ioctl_set_intiovar(dhd, "wnm_bsstrans_resp",
                                WL_BSSTRANS_POLICY_ROAM_ALWAYS,
                                WLC_SET_VAR, FALSE, 0) != BCME_OK) {
                        DHD_ERROR(("failed to disable WBTEXT\n"));
                }
        }
#endif /* !WBTEXT */

#if defined(DHD_NON_DMA_M2M_CORRUPTION)
        /* check pcie non dma loopback */
        if (dhd->op_mode == DHD_FLAG_MFG_MODE) {
                memset(&pcie_dmaxfer_lpbk, 0, sizeof(dhd_pcie_dmaxfer_lpbk_t));
                pcie_dmaxfer_lpbk.u.length = PCIE_DMAXFER_LPBK_LENGTH;
                pcie_dmaxfer_lpbk.lpbkmode = M2M_NON_DMA_LPBK;
                pcie_dmaxfer_lpbk.wait = TRUE;

                if ((ret = dhd_bus_iovar_op(dhd, "pcie_dmaxfer", NULL, 0,
                        (char *)&pcie_dmaxfer_lpbk, sizeof(dhd_pcie_dmaxfer_lpbk_t),
                        IOV_SET)) < 0) {
                        DHD_ERROR(("failed to check PCIe Non DMA Loopback Test!!! Reason : %d\n",
                                ret));
                        goto done;
                }

                if (pcie_dmaxfer_lpbk.u.status != BCME_OK) {
                        DHD_ERROR(("failed to check PCIe Non DMA Loopback Test!!! Reason : %d"
                                " Status : %d\n", ret, pcie_dmaxfer_lpbk.u.status));
                        ret = BCME_ERROR;
                        goto done;
                } else {

                        DHD_ERROR(("successful to check PCIe Non DMA Loopback Test\n"));
                }
        }
#endif /* DHD_NON_DMA_M2M_CORRUPTION */

        /* WNM capabilities */
        wnm_cap = 0
#ifdef WL11U
                | WL_WNM_BSSTRANS | WL_WNM_NOTIF
#endif // endif
#ifdef WBTEXT
                | WL_WNM_BSSTRANS | WL_WNM_MAXIDLE
#endif // endif
                ;
        if (dhd_iovar(dhd, 0, "wnm", (char *)&wnm_cap, sizeof(wnm_cap), NULL, 0, TRUE) < 0) {
                DHD_ERROR(("failed to set WNM capabilities\n"));
        }

        if (FW_SUPPORTED(dhd, ecounters) && enable_ecounter) {
                if (dhd_start_ecounters(dhd) != BCME_OK) {
                        DHD_ERROR(("%s Ecounters start failed\n", __FUNCTION__));
                } else if (dhd_start_event_ecounters(dhd) != BCME_OK) {
                        DHD_ERROR(("%s Event_Ecounters start failed\n", __FUNCTION__));
                }

        }

        /* store the preserve log set numbers */
        if (dhd_get_preserve_log_numbers(dhd, &dhd->logset_prsrv_mask)
                        != BCME_OK) {
                DHD_ERROR(("%s: Failed to get preserve log # !\n", __FUNCTION__));
        }

#if defined(WBTEXT) && defined(WBTEXT_BTMDELTA)
        if (dhd_iovar(dhd, 0, "wnm_btmdelta", (char *)&btmdelta, sizeof(btmdelta),
                        NULL, 0, TRUE) < 0) {
                DHD_ERROR(("failed to set BTM delta\n"));
        }
#endif /* WBTEXT && WBTEXT_BTMDELTA */

#ifdef WL_MONITOR
        if (FW_SUPPORTED(dhd, monitor)) {
                dhd->monitor_enable = TRUE;
                DHD_ERROR(("%s: Monitor mode is enabled in FW cap\n", __FUNCTION__));
        } else {
                dhd->monitor_enable = FALSE;
                DHD_ERROR(("%s: Monitor mode is not enabled in FW cap\n", __FUNCTION__));
        }
#endif /* WL_MONITOR */

done:

        if (eventmask_msg) {
                MFREE(dhd->osh, eventmask_msg, msglen);
                eventmask_msg = NULL;
        }
        if (iov_buf) {
                MFREE(dhd->osh, iov_buf, WLC_IOCTL_SMLEN);
                iov_buf = NULL;
        }
#if defined(DHD_8021X_DUMP) && defined(SHOW_LOGTRACE)
        if (el_tag) {
                MFREE(dhd->osh, el_tag, sizeof(wl_el_tag_params_t));
                el_tag = NULL;
        }
#endif /* DHD_8021X_DUMP */
        return ret;
}

int
dhd_iovar(dhd_pub_t *pub, int ifidx, char *name, char *param_buf, uint param_len, char *res_buf,
                uint res_len, int set)
{
        char *buf = NULL;
        int input_len;
        wl_ioctl_t ioc;
        int ret;

        if (res_len > WLC_IOCTL_MAXLEN || param_len > WLC_IOCTL_MAXLEN)
                return BCME_BADARG;

        input_len = strlen(name) + 1 + param_len;
        if (input_len > WLC_IOCTL_MAXLEN)
                return BCME_BADARG;

        buf = NULL;
        if (set) {
                if (res_buf || res_len != 0) {
                        DHD_ERROR(("%s: SET wrong arguemnet\n", __FUNCTION__));
                        ret = BCME_BADARG;
                        goto exit;
                }
                buf = MALLOCZ(pub->osh, input_len);
                if (!buf) {
                        DHD_ERROR(("%s: mem alloc failed\n", __FUNCTION__));
                        ret = BCME_NOMEM;
                        goto exit;
                }
                ret = bcm_mkiovar(name, param_buf, param_len, buf, input_len);
                if (!ret) {
                        ret = BCME_NOMEM;
                        goto exit;
                }

                ioc.cmd = WLC_SET_VAR;
                ioc.buf = buf;
                ioc.len = input_len;
                ioc.set = set;

                ret = dhd_wl_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);
        } else {
                if (!res_buf || !res_len) {
                        DHD_ERROR(("%s: GET failed. resp_buf NULL or length 0.\n", __FUNCTION__));
                        ret = BCME_BADARG;
                        goto exit;
                }

                if (res_len < input_len) {
                        DHD_INFO(("%s: res_len(%d) < input_len(%d)\n", __FUNCTION__,
                                        res_len, input_len));
                        buf = MALLOCZ(pub->osh, input_len);
                        if (!buf) {
                                DHD_ERROR(("%s: mem alloc failed\n", __FUNCTION__));
                                ret = BCME_NOMEM;
                                goto exit;
                        }
                        ret = bcm_mkiovar(name, param_buf, param_len, buf, input_len);
                        if (!ret) {
                                ret = BCME_NOMEM;
                                goto exit;
                        }

                        ioc.cmd = WLC_GET_VAR;
                        ioc.buf = buf;
                        ioc.len = input_len;
                        ioc.set = set;

                        ret = dhd_wl_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);

                        if (ret == BCME_OK) {
                                memcpy(res_buf, buf, res_len);
                        }
                } else {
                        memset(res_buf, 0, res_len);
                        ret = bcm_mkiovar(name, param_buf, param_len, res_buf, res_len);
                        if (!ret) {
                                ret = BCME_NOMEM;
                                goto exit;
                        }

                        ioc.cmd = WLC_GET_VAR;
                        ioc.buf = res_buf;
                        ioc.len = res_len;
                        ioc.set = set;

                        ret = dhd_wl_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);
                }
        }
exit:
        if (buf) {
                MFREE(pub->osh, buf, input_len);
                buf = NULL;
        }
        return ret;
}

int
dhd_getiovar(dhd_pub_t *pub, int ifidx, char *name, char *cmd_buf,
        uint cmd_len, char **resptr, uint resp_len)
{
        int len = resp_len;
        int ret;
        char *buf = *resptr;
        wl_ioctl_t ioc;
        if (resp_len > WLC_IOCTL_MAXLEN)
                return BCME_BADARG;

        memset(buf, 0, resp_len);

        ret = bcm_mkiovar(name, cmd_buf, cmd_len, buf, len);
        if (ret == 0) {
                return BCME_BUFTOOSHORT;
        }

        memset(&ioc, 0, sizeof(ioc));

        ioc.cmd = WLC_GET_VAR;
        ioc.buf = buf;
        ioc.len = len;
        ioc.set = 0;

        ret = dhd_wl_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);

        return ret;
}

int dhd_change_mtu(dhd_pub_t *dhdp, int new_mtu, int ifidx)
{
        struct dhd_info *dhd = dhdp->info;
        struct net_device *dev = NULL;

        ASSERT(dhd && dhd->iflist[ifidx]);
        dev = dhd->iflist[ifidx]->net;
        ASSERT(dev);

        if (netif_running(dev)) {
                DHD_ERROR(("%s: Must be down to change its MTU", dev->name));
                return BCME_NOTDOWN;
        }

#define DHD_MIN_MTU 1500
#define DHD_MAX_MTU 1752

        if ((new_mtu < DHD_MIN_MTU) || (new_mtu > DHD_MAX_MTU)) {
                DHD_ERROR(("%s: MTU size %d is invalid.\n", __FUNCTION__, new_mtu));
                return BCME_BADARG;
        }

        dev->mtu = new_mtu;
        return 0;
}

#ifdef ARP_OFFLOAD_SUPPORT
/* add or remove AOE host ip(s) (up to 8 IPs on the interface)  */
void
aoe_update_host_ipv4_table(dhd_pub_t *dhd_pub, u32 ipa, bool add, int idx)
{
        u32 ipv4_buf[MAX_IPV4_ENTRIES]; /* temp save for AOE host_ip table */
        int i;
        int ret;

        bzero(ipv4_buf, sizeof(ipv4_buf));

        /* display what we've got */
        ret = dhd_arp_get_arp_hostip_table(dhd_pub, ipv4_buf, sizeof(ipv4_buf), idx);
        DHD_ARPOE(("%s: hostip table read from Dongle:\n", __FUNCTION__));
#ifdef AOE_DBG
        dhd_print_buf(ipv4_buf, 32, 4); /* max 8 IPs 4b each */
#endif // endif
        /* now we saved hoste_ip table, clr it in the dongle AOE */
        dhd_aoe_hostip_clr(dhd_pub, idx);

        if (ret) {
                DHD_ERROR(("%s failed\n", __FUNCTION__));
                return;
        }

        for (i = 0; i < MAX_IPV4_ENTRIES; i++) {
                if (add && (ipv4_buf[i] == 0)) {
                                ipv4_buf[i] = ipa;
                                add = FALSE; /* added ipa to local table  */
                                DHD_ARPOE(("%s: Saved new IP in temp arp_hostip[%d]\n",
                                __FUNCTION__, i));
                } else if (ipv4_buf[i] == ipa) {
                        ipv4_buf[i]     = 0;
                        DHD_ARPOE(("%s: removed IP:%x from temp table %d\n",
                                __FUNCTION__, ipa, i));
                }

                if (ipv4_buf[i] != 0) {
                        /* add back host_ip entries from our local cache */
                        dhd_arp_offload_add_ip(dhd_pub, ipv4_buf[i], idx);
                        DHD_ARPOE(("%s: added IP:%x to dongle arp_hostip[%d]\n\n",
                                __FUNCTION__, ipv4_buf[i], i));
                }
        }
#ifdef AOE_DBG
        /* see the resulting hostip table */
        dhd_arp_get_arp_hostip_table(dhd_pub, ipv4_buf, sizeof(ipv4_buf), idx);
        DHD_ARPOE(("%s: read back arp_hostip table:\n", __FUNCTION__));
        dhd_print_buf(ipv4_buf, 32, 4); /* max 8 IPs 4b each */
#endif // endif
}

/*
 * Notification mechanism from kernel to our driver. This function is called by the Linux kernel
 * whenever there is an event related to an IP address.
 * ptr : kernel provided pointer to IP address that has changed
 */
static int dhd_inetaddr_notifier_call(struct notifier_block *this,
        unsigned long event,
        void *ptr)
{
        struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;

        dhd_info_t *dhd;
        dhd_pub_t *dhd_pub;
        int idx;

        if (!dhd_arp_enable)
                return NOTIFY_DONE;
        if (!ifa || !(ifa->ifa_dev->dev))
                return NOTIFY_DONE;

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31))
        /* Filter notifications meant for non Broadcom devices */
        if ((ifa->ifa_dev->dev->netdev_ops != &dhd_ops_pri) &&
            (ifa->ifa_dev->dev->netdev_ops != &dhd_ops_virt)) {
#if defined(WL_ENABLE_P2P_IF)
                if (!wl_cfgp2p_is_ifops(ifa->ifa_dev->dev->netdev_ops))
#endif /* WL_ENABLE_P2P_IF */
                        return NOTIFY_DONE;
        }
#endif /* LINUX_VERSION_CODE */

        dhd = DHD_DEV_INFO(ifa->ifa_dev->dev);
        if (!dhd)
                return NOTIFY_DONE;

        dhd_pub = &dhd->pub;

        if (dhd_pub->arp_version == 1) {
                idx = 0;
        } else {
                for (idx = 0; idx < DHD_MAX_IFS; idx++) {
                        if (dhd->iflist[idx] && dhd->iflist[idx]->net == ifa->ifa_dev->dev)
                        break;
                }
                if (idx < DHD_MAX_IFS)
                        DHD_TRACE(("ifidx : %p %s %d\n", dhd->iflist[idx]->net,
                                dhd->iflist[idx]->name, dhd->iflist[idx]->idx));
                else {
                        DHD_ERROR(("Cannot find ifidx for(%s) set to 0\n", ifa->ifa_label));
                        idx = 0;
                }
        }

        switch (event) {
                case NETDEV_UP:
                        DHD_ARPOE(("%s: [%s] Up IP: 0x%x\n",
                                __FUNCTION__, ifa->ifa_label, ifa->ifa_address));

                        /*
                         * Skip if Bus is not in a state to transport the IOVAR
                         * (or) the Dongle is not ready.
                         */
                        if (DHD_BUS_CHECK_DOWN_OR_DOWN_IN_PROGRESS(&dhd->pub) ||
                                dhd->pub.busstate ==  DHD_BUS_LOAD) {
                                DHD_ERROR(("%s: bus not ready, exit NETDEV_UP : %d\n",
                                        __FUNCTION__, dhd->pub.busstate));
                                if (dhd->pend_ipaddr) {
                                        DHD_ERROR(("%s: overwrite pending ipaddr: 0x%x\n",
                                                __FUNCTION__, dhd->pend_ipaddr));
                                }
                                dhd->pend_ipaddr = ifa->ifa_address;
                                break;
                        }

#ifdef AOE_IP_ALIAS_SUPPORT
                        DHD_ARPOE(("%s:add aliased IP to AOE hostip cache\n",
                                __FUNCTION__));
                        aoe_update_host_ipv4_table(dhd_pub, ifa->ifa_address, TRUE, idx);
#endif /* AOE_IP_ALIAS_SUPPORT */
                        break;

                case NETDEV_DOWN:
                        DHD_ARPOE(("%s: [%s] Down IP: 0x%x\n",
                                __FUNCTION__, ifa->ifa_label, ifa->ifa_address));
                        dhd->pend_ipaddr = 0;
#ifdef AOE_IP_ALIAS_SUPPORT
                        DHD_ARPOE(("%s:interface is down, AOE clr all for this if\n",
                                __FUNCTION__));
                        if ((dhd_pub->op_mode & DHD_FLAG_HOSTAP_MODE) ||
                                (ifa->ifa_dev->dev != dhd_linux_get_primary_netdev(dhd_pub))) {
                                aoe_update_host_ipv4_table(dhd_pub, ifa->ifa_address, FALSE, idx);
                        } else
#endif /* AOE_IP_ALIAS_SUPPORT */
                        {
                                dhd_aoe_hostip_clr(&dhd->pub, idx);
                                dhd_aoe_arp_clr(&dhd->pub, idx);
                        }
                        break;

                default:
                        DHD_ARPOE(("%s: do noting for [%s] Event: %lu\n",
                                __func__, ifa->ifa_label, event));
                        break;
        }
        return NOTIFY_DONE;
}
#endif /* ARP_OFFLOAD_SUPPORT */

#if defined(CONFIG_IPV6) && defined(IPV6_NDO_SUPPORT)
/* Neighbor Discovery Offload: defered handler */
static void
dhd_inet6_work_handler(void *dhd_info, void *event_data, u8 event)
{
        struct ipv6_work_info_t *ndo_work = (struct ipv6_work_info_t *)event_data;
        dhd_info_t *dhd = (dhd_info_t *)dhd_info;
        dhd_pub_t *dhdp;
        int ret;

        if (!dhd) {
                DHD_ERROR(("%s: invalid dhd_info\n", __FUNCTION__));
                goto done;
        }
        dhdp = &dhd->pub;

        if (event != DHD_WQ_WORK_IPV6_NDO) {
                DHD_ERROR(("%s: unexpected event\n", __FUNCTION__));
                goto done;
        }

        if (!ndo_work) {
                DHD_ERROR(("%s: ipv6 work info is not initialized\n", __FUNCTION__));
                return;
        }

        switch (ndo_work->event) {
                case NETDEV_UP:
#ifndef NDO_CONFIG_SUPPORT
                        DHD_TRACE(("%s: Enable NDO \n ", __FUNCTION__));
                        ret = dhd_ndo_enable(dhdp, TRUE);
                        if (ret < 0) {
                                DHD_ERROR(("%s: Enabling NDO Failed %d\n", __FUNCTION__, ret));
                        }
#endif /* !NDO_CONFIG_SUPPORT */
                        DHD_TRACE(("%s: Add a host ip for NDO\n", __FUNCTION__));
                        if (dhdp->ndo_version > 0) {
                                /* inet6 addr notifier called only for unicast address */
                                ret = dhd_ndo_add_ip_with_type(dhdp, &ndo_work->ipv6_addr[0],
                                        WL_ND_IPV6_ADDR_TYPE_UNICAST, ndo_work->if_idx);
                        } else {
                                ret = dhd_ndo_add_ip(dhdp, &ndo_work->ipv6_addr[0],
                                        ndo_work->if_idx);
                        }
                        if (ret < 0) {
                                DHD_ERROR(("%s: Adding a host ip for NDO failed %d\n",
                                        __FUNCTION__, ret));
                        }
                        break;
                case NETDEV_DOWN:
                        if (dhdp->ndo_version > 0) {
                                DHD_TRACE(("%s: Remove a host ip for NDO\n", __FUNCTION__));
                                ret = dhd_ndo_remove_ip_by_addr(dhdp,
                                        &ndo_work->ipv6_addr[0], ndo_work->if_idx);
                        } else {
                                DHD_TRACE(("%s: Clear host ip table for NDO \n", __FUNCTION__));
                                ret = dhd_ndo_remove_ip(dhdp, ndo_work->if_idx);
                        }
                        if (ret < 0) {
                                DHD_ERROR(("%s: Removing host ip for NDO failed %d\n",
                                        __FUNCTION__, ret));
                                goto done;
                        }
#ifdef NDO_CONFIG_SUPPORT
                        if (dhdp->ndo_host_ip_overflow) {
                                ret = dhd_dev_ndo_update_inet6addr(
                                        dhd_idx2net(dhdp, ndo_work->if_idx));
                                if ((ret < 0) && (ret != BCME_NORESOURCE)) {
                                        DHD_ERROR(("%s: Updating host ip for NDO failed %d\n",
                                                __FUNCTION__, ret));
                                        goto done;
                                }
                        }
#else /* !NDO_CONFIG_SUPPORT */
                        DHD_TRACE(("%s: Disable NDO\n ", __FUNCTION__));
                        ret = dhd_ndo_enable(dhdp, FALSE);
                        if (ret < 0) {
                                DHD_ERROR(("%s: disabling NDO Failed %d\n", __FUNCTION__, ret));
                                goto done;
                        }
#endif /* NDO_CONFIG_SUPPORT */
                        break;

                default:
                        DHD_ERROR(("%s: unknown notifier event \n", __FUNCTION__));
                        break;
        }
done:

        /* free ndo_work. alloced while scheduling the work */
        if (ndo_work) {
                kfree(ndo_work);
        }

        return;
} /* dhd_init_logstrs_array */

/*
 * Neighbor Discovery Offload: Called when an interface
 * is assigned with ipv6 address.
 * Handles only primary interface
 */
int dhd_inet6addr_notifier_call(struct notifier_block *this, unsigned long event, void *ptr)
{
        dhd_info_t *dhd;
        dhd_pub_t *dhdp;
        struct inet6_ifaddr *inet6_ifa = ptr;
        struct ipv6_work_info_t *ndo_info;
        int idx;

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31))
        /* Filter notifications meant for non Broadcom devices */
        if (inet6_ifa->idev->dev->netdev_ops != &dhd_ops_pri) {
                        return NOTIFY_DONE;
        }
#endif /* LINUX_VERSION_CODE */

        dhd = DHD_DEV_INFO(inet6_ifa->idev->dev);
        if (!dhd) {
                return NOTIFY_DONE;
        }
        dhdp = &dhd->pub;

        /* Supports only primary interface */
        idx = dhd_net2idx(dhd, inet6_ifa->idev->dev);
        if (idx != 0) {
                return NOTIFY_DONE;
        }

        /* FW capability */
        if (!FW_SUPPORTED(dhdp, ndoe)) {
                return NOTIFY_DONE;
        }

        ndo_info = (struct ipv6_work_info_t *)kzalloc(sizeof(struct ipv6_work_info_t), GFP_ATOMIC);
        if (!ndo_info) {
                DHD_ERROR(("%s: ipv6 work alloc failed\n", __FUNCTION__));
                return NOTIFY_DONE;
        }

        /* fill up ndo_info */
        ndo_info->event = event;
        ndo_info->if_idx = idx;
        memcpy(ndo_info->ipv6_addr, &inet6_ifa->addr, IPV6_ADDR_LEN);

        /* defer the work to thread as it may block kernel */
        dhd_deferred_schedule_work(dhd->dhd_deferred_wq, (void *)ndo_info, DHD_WQ_WORK_IPV6_NDO,
                dhd_inet6_work_handler, DHD_WQ_WORK_PRIORITY_LOW);
        return NOTIFY_DONE;
}
#endif /* CONFIG_IPV6 && IPV6_NDO_SUPPORT */

/* Network attach to be invoked from the bus probe handlers */
int
dhd_attach_net(dhd_pub_t *dhdp, bool need_rtnl_lock)
{
        struct net_device *primary_ndev;
        BCM_REFERENCE(primary_ndev);

        /* Register primary net device */
        if (dhd_register_if(dhdp, 0, need_rtnl_lock) != 0) {
                return BCME_ERROR;
        }

#if defined(WL_CFG80211)
        primary_ndev =  dhd_linux_get_primary_netdev(dhdp);
        if (wl_cfg80211_net_attach(primary_ndev) < 0) {
                /* fail the init */
                dhd_remove_if(dhdp, 0, TRUE);
                return BCME_ERROR;
        }
#endif /* WL_CFG80211 */
        return BCME_OK;
}

int
dhd_register_if(dhd_pub_t *dhdp, int ifidx, bool need_rtnl_lock)
{
        dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
        dhd_if_t *ifp;
        struct net_device *net = NULL;
        int err = 0;
        uint8 temp_addr[ETHER_ADDR_LEN] = { 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33 };

        DHD_TRACE(("%s: ifidx %d\n", __FUNCTION__, ifidx));

        if (dhd == NULL || dhd->iflist[ifidx] == NULL) {
                DHD_ERROR(("%s: Invalid Interface\n", __FUNCTION__));
                return BCME_ERROR;
        }

        ASSERT(dhd && dhd->iflist[ifidx]);
        ifp = dhd->iflist[ifidx];
        net = ifp->net;
        ASSERT(net && (ifp->idx == ifidx));

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31))
        ASSERT(!net->open);
        net->get_stats = dhd_get_stats;
#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
        net->do_ioctl = dhd_ioctl_entry_wrapper;
        net->hard_start_xmit = dhd_start_xmit_wrapper;
#else
        net->do_ioctl = dhd_ioctl_entry;
        net->hard_start_xmit = dhd_start_xmit;
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */

        net->set_mac_address = dhd_set_mac_address;
        net->set_multicast_list = dhd_set_multicast_list;
        net->open = net->stop = NULL;
#else
        ASSERT(!net->netdev_ops);
        net->netdev_ops = &dhd_ops_virt;
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31) */

        /* Ok, link into the network layer... */
        if (ifidx == 0) {
                /*
                 * device functions for the primary interface only
                 */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31))
                net->open = dhd_pri_open;
                net->stop = dhd_pri_stop;
#else
                net->netdev_ops = &dhd_ops_pri;
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31) */
                if (!ETHER_ISNULLADDR(dhd->pub.mac.octet))
                        memcpy(temp_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
        } else {
                /*
                 * We have to use the primary MAC for virtual interfaces
                 */
                memcpy(temp_addr, ifp->mac_addr, ETHER_ADDR_LEN);
                /*
                 * Android sets the locally administered bit to indicate that this is a
                 * portable hotspot.  This will not work in simultaneous AP/STA mode,
                 * nor with P2P.  Need to set the Donlge's MAC address, and then use that.
                 */
                if (!memcmp(temp_addr, dhd->iflist[0]->mac_addr,
                        ETHER_ADDR_LEN)) {
                        DHD_ERROR(("%s interface [%s]: set locally administered bit in MAC\n",
                        __func__, net->name));
                        temp_addr[0] |= 0x02;
                }
        }

        net->hard_header_len = ETH_HLEN + dhd->pub.hdrlen;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24)
        net->ethtool_ops = &dhd_ethtool_ops;
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24) */

#if defined(WL_WIRELESS_EXT)
#if WIRELESS_EXT < 19
        net->get_wireless_stats = dhd_get_wireless_stats;
#endif /* WIRELESS_EXT < 19 */
#if WIRELESS_EXT > 12
        net->wireless_handlers = &wl_iw_handler_def;
#endif /* WIRELESS_EXT > 12 */
#endif /* defined(WL_WIRELESS_EXT) */

        dhd->pub.rxsz = DBUS_RX_BUFFER_SIZE_DHD(net);

        memcpy(net->dev_addr, temp_addr, ETHER_ADDR_LEN);

        if (ifidx == 0)
                printf("%s\n", dhd_version);

        if (need_rtnl_lock)
                err = register_netdev(net);
        else
                err = register_netdevice(net);

        if (err != 0) {
                DHD_ERROR(("couldn't register the net device [%s], err %d\n", net->name, err));
                goto fail;
        }

        printf("Register interface [%s]  MAC: "MACDBG"\n\n", net->name,
#if defined(CUSTOMER_HW4_DEBUG)
                MAC2STRDBG(dhd->pub.mac.octet));
#else
                MAC2STRDBG(net->dev_addr));
#endif /* CUSTOMER_HW4_DEBUG */

#if defined(SOFTAP) && defined(WL_WIRELESS_EXT) && !defined(WL_CFG80211)
                wl_iw_iscan_set_scan_broadcast_prep(net, 1);
#endif // endif

#if (defined(BCMPCIE) || (defined(BCMLXSDMMC) && (LINUX_VERSION_CODE >= \
        KERNEL_VERSION(2, 6, 27))))
        if (ifidx == 0) {
#ifdef BCMLXSDMMC
                up(&dhd_registration_sem);
#endif /* BCMLXSDMMC */
                if (!dhd_download_fw_on_driverload) {
#ifdef WL_CFG80211
                        wl_terminate_event_handler(net);
#endif /* WL_CFG80211 */
#if defined(DHD_LB_RXP)
                        __skb_queue_purge(&dhd->rx_pend_queue);
#endif /* DHD_LB_RXP */

#if defined(DHD_LB_TXP)
                        skb_queue_purge(&dhd->tx_pend_queue);
#endif /* DHD_LB_TXP */

#ifdef SHOW_LOGTRACE
                        /* Release the skbs from queue for WLC_E_TRACE event */
                        dhd_event_logtrace_flush_queue(dhdp);
#endif /* SHOW_LOGTRACE */

#if defined(BCMPCIE) && defined(DHDTCPACK_SUPPRESS)
                        dhd_tcpack_suppress_set(dhdp, TCPACK_SUP_OFF);
#endif /* BCMPCIE && DHDTCPACK_SUPPRESS */
                        dhd_net_bus_devreset(net, TRUE);
#ifdef BCMLXSDMMC
                        dhd_net_bus_suspend(net);
#endif /* BCMLXSDMMC */
                        wifi_platform_set_power(dhdp->info->adapter, FALSE, WIFI_TURNOFF_DELAY);
#if defined(BT_OVER_SDIO)
                        dhd->bus_user_count--;
#endif /* BT_OVER_SDIO */
                }
        }
#endif /* OEM_ANDROID && (BCMPCIE || (BCMLXSDMMC && KERNEL_VERSION >= 2.6.27)) */
        return 0;

fail:
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31)
        net->open = NULL;
#else
        net->netdev_ops = NULL;
#endif // endif
        return err;
}

void
dhd_bus_detach(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd;

        DHD_TRACE(("%s: Enter\n", __FUNCTION__));

        if (dhdp) {
                dhd = (dhd_info_t *)dhdp->info;
                if (dhd) {

                        /*
                         * In case of Android cfg80211 driver, the bus is down in dhd_stop,
                         *  calling stop again will cuase SD read/write errors.
                         */
                        if (dhd->pub.busstate != DHD_BUS_DOWN) {
                                /* Stop the protocol module */
                                dhd_prot_stop(&dhd->pub);

                                /* Stop the bus module */
                                dhd_bus_stop(dhd->pub.bus, TRUE);
                        }

#if defined(OOB_INTR_ONLY) || defined(BCMSPI_ANDROID) || defined(BCMPCIE_OOB_HOST_WAKE)
                        dhd_bus_oob_intr_unregister(dhdp);
#endif /* OOB_INTR_ONLY || BCMSPI_ANDROID || BCMPCIE_OOB_HOST_WAKE */
                }
        }
}

void dhd_detach(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd;
        unsigned long flags;
        int timer_valid = FALSE;
        struct net_device *dev;
#ifdef WL_CFG80211
        struct bcm_cfg80211 *cfg = NULL;
#endif // endif
        if (!dhdp)
                return;

        dhd = (dhd_info_t *)dhdp->info;
        if (!dhd)
                return;

        dev = dhd->iflist[0]->net;

        if (dev) {
                rtnl_lock();
                if (dev->flags & IFF_UP) {
                        /* If IFF_UP is still up, it indicates that
                         * "ifconfig wlan0 down" hasn't been called.
                         * So invoke dev_close explicitly here to
                         * bring down the interface.
                         */
                        DHD_TRACE(("IFF_UP flag is up. Enforcing dev_close from detach \n"));
                        dev_close(dev);
                }
                rtnl_unlock();
        }

        DHD_TRACE(("%s: Enter state 0x%x\n", __FUNCTION__, dhd->dhd_state));

        dhd->pub.up = 0;
        if (!(dhd->dhd_state & DHD_ATTACH_STATE_DONE)) {
                /* Give sufficient time for threads to start running in case
                 * dhd_attach() has failed
                 */
                OSL_SLEEP(100);
        }
#ifdef DHD_WET
        dhd_free_wet_info(&dhd->pub, dhd->pub.wet_info);
#endif /* DHD_WET */
#if defined(BCM_DNGL_EMBEDIMAGE) || defined(BCM_REQUEST_FW)
#endif /* defined(BCM_DNGL_EMBEDIMAGE) || defined(BCM_REQUEST_FW) */

#ifdef PROP_TXSTATUS
#ifdef DHD_WLFC_THREAD
        if (dhd->pub.wlfc_thread) {
                kthread_stop(dhd->pub.wlfc_thread);
                dhdp->wlfc_thread_go = TRUE;
                wake_up_interruptible(&dhdp->wlfc_wqhead);
        }
        dhd->pub.wlfc_thread = NULL;
#endif /* DHD_WLFC_THREAD */
#endif /* PROP_TXSTATUS */

#ifdef WL_CFG80211
        if (dev)
                wl_cfg80211_down(dev);
#endif /* WL_CFG80211 */

        if (dhd->dhd_state & DHD_ATTACH_STATE_PROT_ATTACH) {

                dhd_bus_detach(dhdp);
#ifdef BCMPCIE
                if (is_reboot == SYS_RESTART) {
                        extern bcmdhd_wifi_platdata_t *dhd_wifi_platdata;
                        if (dhd_wifi_platdata && !dhdp->dongle_reset) {
                                dhdpcie_bus_clock_stop(dhdp->bus);
                                wifi_platform_set_power(dhd_wifi_platdata->adapters,
                                        FALSE, WIFI_TURNOFF_DELAY);
                        }
                }
#endif /* BCMPCIE */
#ifndef PCIE_FULL_DONGLE
                if (dhdp->prot)
                        dhd_prot_detach(dhdp);
#endif /* !PCIE_FULL_DONGLE */
        }

#ifdef ARP_OFFLOAD_SUPPORT
        if (dhd_inetaddr_notifier_registered) {
                dhd_inetaddr_notifier_registered = FALSE;
                unregister_inetaddr_notifier(&dhd_inetaddr_notifier);
        }
#endif /* ARP_OFFLOAD_SUPPORT */
#if defined(CONFIG_IPV6) && defined(IPV6_NDO_SUPPORT)
        if (dhd_inet6addr_notifier_registered) {
                dhd_inet6addr_notifier_registered = FALSE;
                unregister_inet6addr_notifier(&dhd_inet6addr_notifier);
        }
#endif /* CONFIG_IPV6 && IPV6_NDO_SUPPORT */
#if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND)
        if (dhd->dhd_state & DHD_ATTACH_STATE_EARLYSUSPEND_DONE) {
                if (dhd->early_suspend.suspend)
                        unregister_early_suspend(&dhd->early_suspend);
        }
#endif /* CONFIG_HAS_EARLYSUSPEND && DHD_USE_EARLYSUSPEND */

#if defined(WL_WIRELESS_EXT)
        if (dhd->dhd_state & DHD_ATTACH_STATE_WL_ATTACH) {
                /* Detatch and unlink in the iw */
                wl_iw_detach();
        }
#endif /* defined(WL_WIRELESS_EXT) */

#ifdef DHD_ULP
        dhd_ulp_deinit(dhd->pub.osh, dhdp);
#endif /* DHD_ULP */

        /* delete all interfaces, start with virtual  */
        if (dhd->dhd_state & DHD_ATTACH_STATE_ADD_IF) {
                int i = 1;
                dhd_if_t *ifp;

                /* Cleanup virtual interfaces */
                dhd_net_if_lock_local(dhd);
                for (i = 1; i < DHD_MAX_IFS; i++) {
                        if (dhd->iflist[i]) {
                                dhd_remove_if(&dhd->pub, i, TRUE);
                        }
                }
                dhd_net_if_unlock_local(dhd);

                /*  delete primary interface 0 */
                ifp = dhd->iflist[0];
                if (ifp && ifp->net) {

#ifdef WL_CFG80211
                        cfg = wl_get_cfg(ifp->net);
#endif // endif
                        /* in unregister_netdev case, the interface gets freed by net->destructor
                         * (which is set to free_netdev)
                         */
                        if (ifp->net->reg_state == NETREG_UNINITIALIZED) {
                                free_netdev(ifp->net);
                        } else {
#if (defined(ARGOS_CPU_SCHEDULER) && defined(ARGOS_RPS_CPU_CTL)) || \
        defined(ARGOS_NOTIFY_CB)
                                argos_register_notifier_deinit();
#endif /*  (ARGOS_CPU_SCHEDULER && ARGOS_RPS_CPU_CTL) || ARGOS_NOTIFY_CB */
#ifdef SET_RPS_CPUS
                                custom_rps_map_clear(ifp->net->_rx);
#endif /* SET_RPS_CPUS */
                                netif_tx_disable(ifp->net);
                                unregister_netdev(ifp->net);
                        }
#ifdef PCIE_FULL_DONGLE
                        ifp->net = DHD_NET_DEV_NULL;
#else
                        ifp->net = NULL;
#endif /* PCIE_FULL_DONGLE */

#ifdef DHD_L2_FILTER
                        bcm_l2_filter_arp_table_update(dhdp->osh, ifp->phnd_arp_table, TRUE,
                                NULL, FALSE, dhdp->tickcnt);
                        deinit_l2_filter_arp_table(dhdp->osh, ifp->phnd_arp_table);
                        ifp->phnd_arp_table = NULL;
#endif /* DHD_L2_FILTER */

                        dhd_if_del_sta_list(ifp);

                        MFREE(dhd->pub.osh, ifp, sizeof(*ifp));
                        dhd->iflist[0] = NULL;
                }
        }

        /* Clear the watchdog timer */
        DHD_GENERAL_LOCK(&dhd->pub, flags);
        timer_valid = dhd->wd_timer_valid;
        dhd->wd_timer_valid = FALSE;
        DHD_GENERAL_UNLOCK(&dhd->pub, flags);
        if (timer_valid)
                del_timer_sync(&dhd->timer);
        DHD_DISABLE_RUNTIME_PM(&dhd->pub);

        if (dhd->dhd_state & DHD_ATTACH_STATE_THREADS_CREATED) {
#ifdef DHD_PCIE_RUNTIMEPM
                if (dhd->thr_rpm_ctl.thr_pid >= 0) {
                        PROC_STOP(&dhd->thr_rpm_ctl);
                }
#endif /* DHD_PCIE_RUNTIMEPM */
                if (dhd->thr_wdt_ctl.thr_pid >= 0) {
                        PROC_STOP(&dhd->thr_wdt_ctl);
                }

                if (dhd->rxthread_enabled && dhd->thr_rxf_ctl.thr_pid >= 0) {
                        PROC_STOP(&dhd->thr_rxf_ctl);
                }

                if (dhd->thr_dpc_ctl.thr_pid >= 0) {
                        PROC_STOP(&dhd->thr_dpc_ctl);
                } else
                {
                        tasklet_kill(&dhd->tasklet);
                }
        }

#ifdef WL_NATOE
        if (dhd->pub.nfct) {
                dhd_ct_close(dhd->pub.nfct);
        }
#endif /* WL_NATOE */

#ifdef DHD_LB
        if (dhd->dhd_state & DHD_ATTACH_STATE_LB_ATTACH_DONE) {
                /* Clear the flag first to avoid calling the cpu notifier */
                dhd->dhd_state &= ~DHD_ATTACH_STATE_LB_ATTACH_DONE;

                /* Kill the Load Balancing Tasklets */
#ifdef DHD_LB_RXP
                cancel_work_sync(&dhd->rx_napi_dispatcher_work);
                __skb_queue_purge(&dhd->rx_pend_queue);
#endif /* DHD_LB_RXP */
#ifdef DHD_LB_TXP
                cancel_work_sync(&dhd->tx_dispatcher_work);
                tasklet_kill(&dhd->tx_tasklet);
                __skb_queue_purge(&dhd->tx_pend_queue);
#endif /* DHD_LB_TXP */
#ifdef DHD_LB_TXC
                cancel_work_sync(&dhd->tx_compl_dispatcher_work);
                tasklet_kill(&dhd->tx_compl_tasklet);
#endif /* DHD_LB_TXC */
#ifdef DHD_LB_RXC
                tasklet_kill(&dhd->rx_compl_tasklet);
#endif /* DHD_LB_RXC */

                if (dhd->cpu_notifier.notifier_call != NULL) {
                        unregister_cpu_notifier(&dhd->cpu_notifier);
                }
                dhd_cpumasks_deinit(dhd);
                DHD_LB_STATS_DEINIT(&dhd->pub);
        }
#endif /* DHD_LB */

        DHD_SSSR_MEMPOOL_DEINIT(&dhd->pub);

#ifdef WL_CFG80211
        if (dhd->dhd_state & DHD_ATTACH_STATE_CFG80211) {
                if (!cfg) {
                        DHD_ERROR(("cfg NULL!\n"));
                        ASSERT(0);
                } else {
                        wl_cfg80211_detach(cfg);
                        dhd_monitor_uninit();
                }
        }
#endif // endif

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
        destroy_workqueue(dhd->tx_wq);
        dhd->tx_wq = NULL;
        destroy_workqueue(dhd->rx_wq);
        dhd->rx_wq = NULL;
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */
#ifdef DEBUGABILITY
        if (dhdp->dbg) {
#ifdef DBG_PKT_MON
                dhd_os_dbg_detach_pkt_monitor(dhdp);
                dhd_os_spin_lock_deinit(dhd->pub.osh, dhd->pub.dbg->pkt_mon_lock);
#endif /* DBG_PKT_MON */
                dhd_os_dbg_detach(dhdp);
        }
#endif /* DEBUGABILITY */
#ifdef DHD_PKT_LOGGING
                dhd_os_detach_pktlog(dhdp);
#endif /* DHD_PKT_LOGGING */
#ifdef WL_CFGVENDOR_SEND_HANG_EVENT
                if (dhd->pub.hang_info) {
                        MFREE(dhd->pub.osh, dhd->pub.hang_info, VENDOR_SEND_HANG_EXT_INFO_LEN);
                }
#endif /* WL_CFGVENDOR_SEND_HANG_EVENT */
#ifdef SHOW_LOGTRACE
        /* Release the skbs from queue for WLC_E_TRACE event */
        dhd_event_logtrace_flush_queue(dhdp);

        if (dhd->dhd_state & DHD_ATTACH_LOGTRACE_INIT) {
                if (dhd->event_data.fmts) {
                        MFREE(dhd->pub.osh, dhd->event_data.fmts,
                                        dhd->event_data.fmts_size);
                        dhd->event_data.fmts = NULL;
                }
                if (dhd->event_data.raw_fmts) {
                        MFREE(dhd->pub.osh, dhd->event_data.raw_fmts,
                                        dhd->event_data.raw_fmts_size);
                        dhd->event_data.raw_fmts = NULL;
                }
                if (dhd->event_data.raw_sstr) {
                        MFREE(dhd->pub.osh, dhd->event_data.raw_sstr,
                                        dhd->event_data.raw_sstr_size);
                        dhd->event_data.raw_sstr = NULL;
                }
                if (dhd->event_data.rom_raw_sstr) {
                        MFREE(dhd->pub.osh, dhd->event_data.rom_raw_sstr,
                                        dhd->event_data.rom_raw_sstr_size);
                        dhd->event_data.rom_raw_sstr = NULL;
                }
                dhd->dhd_state &= ~DHD_ATTACH_LOGTRACE_INIT;
        }
#endif /* SHOW_LOGTRACE */
#ifdef PNO_SUPPORT
        if (dhdp->pno_state)
                dhd_pno_deinit(dhdp);
#endif // endif
#ifdef RTT_SUPPORT
        if (dhdp->rtt_state) {
                dhd_rtt_deinit(dhdp);
        }
#endif // endif
#if defined(CONFIG_PM_SLEEP)
        if (dhd_pm_notifier_registered) {
                unregister_pm_notifier(&dhd->pm_notifier);
                dhd_pm_notifier_registered = FALSE;
        }
#endif /* CONFIG_PM_SLEEP */

#ifdef DEBUG_CPU_FREQ
                if (dhd->new_freq)
                        free_percpu(dhd->new_freq);
                dhd->new_freq = NULL;
                cpufreq_unregister_notifier(&dhd->freq_trans, CPUFREQ_TRANSITION_NOTIFIER);
#endif // endif
#ifdef CONFIG_HAS_WAKELOCK
        dhd->wakelock_wd_counter = 0;
        wake_lock_destroy(&dhd->wl_wdwake);
#endif /* CONFIG_HAS_WAKELOCK */
        if (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT) {
                DHD_TRACE(("wd wakelock count:%d\n", dhd->wakelock_wd_counter));
                DHD_OS_WAKE_LOCK_DESTROY(dhd);
        }

#ifdef ARGOS_CPU_SCHEDULER
        if (dhd->pub.affinity_isdpc == TRUE) {
                free_cpumask_var(dhd->pub.default_cpu_mask);
                free_cpumask_var(dhd->pub.dpc_affinity_cpu_mask);
                dhd->pub.affinity_isdpc = FALSE;
        }
#endif /* ARGOS_CPU_SCHEDULER */

#ifdef DHDTCPACK_SUPPRESS
        /* This will free all MEM allocated for TCPACK SUPPRESS */
        dhd_tcpack_suppress_set(&dhd->pub, TCPACK_SUP_OFF);
#endif /* DHDTCPACK_SUPPRESS */

#ifdef PCIE_FULL_DONGLE
        dhd_flow_rings_deinit(dhdp);
        if (dhdp->prot)
                dhd_prot_detach(dhdp);
#endif // endif

#if defined(WLTDLS) && defined(PCIE_FULL_DONGLE)
                dhd_free_tdls_peer_list(dhdp);
#endif // endif

#ifdef DUMP_IOCTL_IOV_LIST
        dhd_iov_li_delete(dhdp, &(dhdp->dump_iovlist_head));
#endif /* DUMP_IOCTL_IOV_LIST */
#ifdef DHD_DEBUG
        /* memory waste feature list initilization */
        dhd_mw_list_delete(dhdp, &(dhdp->mw_list_head));
#endif /* DHD_DEBUG */
#ifdef WL_MONITOR
        dhd_del_monitor_if(dhd);
#endif /* WL_MONITOR */

#ifdef DHD_ERPOM
        if (dhdp->enable_erpom) {
                dhdp->pom_func_deregister(&dhdp->pom_wlan_handler);
        }
#endif /* DHD_ERPOM */

        cancel_work_sync(&dhd->dhd_hang_process_work);

        /* Prefer adding de-init code above this comment unless necessary.
         * The idea is to cancel work queue, sysfs and flags at the end.
         */
        dhd_deferred_work_deinit(dhd->dhd_deferred_wq);
        dhd->dhd_deferred_wq = NULL;

        /* log dump related buffers should be freed after wq is purged */
#ifdef DHD_LOG_DUMP
        dhd_log_dump_deinit(&dhd->pub);
#endif /* DHD_LOG_DUMP */
#if defined(BCMPCIE)
        if (dhdp->extended_trap_data)
        {
                MFREE(dhdp->osh, dhdp->extended_trap_data, BCMPCIE_EXT_TRAP_DATA_MAXLEN);
                dhdp->extended_trap_data = NULL;
        }
#endif /* BCMPCIE */

#ifdef SHOW_LOGTRACE
        /* Wait till event_log_dispatcher_work finishes */
        cancel_delayed_work_sync(&dhd->event_log_dispatcher_work);
        mutex_lock(&dhd->pub.dhd_trace_lock);
        remove_proc_entry("dhd_trace", NULL);
        mutex_unlock(&dhd->pub.dhd_trace_lock);
#endif /* SHOW_LOGTRACE */

#ifdef DHD_DUMP_MNGR
        if (dhd->pub.dump_file_manage) {
                MFREE(dhd->pub.osh, dhd->pub.dump_file_manage,
                        sizeof(dhd_dump_file_manage_t));
        }
#endif /* DHD_DUMP_MNGR */
        dhd_sysfs_exit(dhd);
        dhd->pub.fw_download_done = FALSE;

#if defined(BT_OVER_SDIO)
        mutex_destroy(&dhd->bus_user_lock);
#endif /* BT_OVER_SDIO */

} /* dhd_detach */

void
dhd_free(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd;
        DHD_TRACE(("%s: Enter\n", __FUNCTION__));

        if (dhdp) {
                int i;
                for (i = 0; i < ARRAYSIZE(dhdp->reorder_bufs); i++) {
                        if (dhdp->reorder_bufs[i]) {
                                reorder_info_t *ptr;
                                uint32 buf_size = sizeof(struct reorder_info);

                                ptr = dhdp->reorder_bufs[i];

                                buf_size += ((ptr->max_idx + 1) * sizeof(void*));
                                DHD_REORDER(("free flow id buf %d, maxidx is %d, buf_size %d\n",
                                        i, ptr->max_idx, buf_size));

                                MFREE(dhdp->osh, dhdp->reorder_bufs[i], buf_size);
                                dhdp->reorder_bufs[i] = NULL;
                        }
                }

                dhd_sta_pool_fini(dhdp, DHD_MAX_STA);

                dhd = (dhd_info_t *)dhdp->info;
                if (dhdp->soc_ram) {
#if defined(CONFIG_DHD_USE_STATIC_BUF) && defined(DHD_USE_STATIC_MEMDUMP)
                        DHD_OS_PREFREE(dhdp, dhdp->soc_ram, dhdp->soc_ram_length);
#else
                        MFREE(dhdp->osh, dhdp->soc_ram, dhdp->soc_ram_length);
#endif /* CONFIG_DHD_USE_STATIC_BUF && DHD_USE_STATIC_MEMDUMP */
                        dhdp->soc_ram = NULL;
                }
                if (dhd != NULL) {

                        /* If pointer is allocated by dhd_os_prealloc then avoid MFREE */
                        if (dhd != (dhd_info_t *)dhd_os_prealloc(dhdp,
                                        DHD_PREALLOC_DHD_INFO, 0, FALSE))
                                MFREE(dhd->pub.osh, dhd, sizeof(*dhd));
                        dhd = NULL;
                }
        }
}

void
dhd_clear(dhd_pub_t *dhdp)
{
        DHD_TRACE(("%s: Enter\n", __FUNCTION__));

        if (dhdp) {
                int i;
#ifdef DHDTCPACK_SUPPRESS
                /* Clean up timer/data structure for any remaining/pending packet or timer. */
                dhd_tcpack_info_tbl_clean(dhdp);
#endif /* DHDTCPACK_SUPPRESS */
                for (i = 0; i < ARRAYSIZE(dhdp->reorder_bufs); i++) {
                        if (dhdp->reorder_bufs[i]) {
                                reorder_info_t *ptr;
                                uint32 buf_size = sizeof(struct reorder_info);

                                ptr = dhdp->reorder_bufs[i];

                                buf_size += ((ptr->max_idx + 1) * sizeof(void*));
                                DHD_REORDER(("free flow id buf %d, maxidx is %d, buf_size %d\n",
                                        i, ptr->max_idx, buf_size));

                                MFREE(dhdp->osh, dhdp->reorder_bufs[i], buf_size);
                                dhdp->reorder_bufs[i] = NULL;
                        }
                }

                dhd_sta_pool_clear(dhdp, DHD_MAX_STA);

                if (dhdp->soc_ram) {
#if defined(CONFIG_DHD_USE_STATIC_BUF) && defined(DHD_USE_STATIC_MEMDUMP)
                        DHD_OS_PREFREE(dhdp, dhdp->soc_ram, dhdp->soc_ram_length);
#else
                        MFREE(dhdp->osh, dhdp->soc_ram, dhdp->soc_ram_length);
#endif /* CONFIG_DHD_USE_STATIC_BUF && DHD_USE_STATIC_MEMDUMP */
                        dhdp->soc_ram = NULL;
                }
        }
}

static void
dhd_module_cleanup(void)
{
        DHD_TRACE(("%s: Enter\n", __FUNCTION__));

        dhd_bus_unregister();

        wl_android_exit();

        dhd_wifi_platform_unregister_drv();
}

static void __exit
dhd_module_exit(void)
{
        atomic_set(&exit_in_progress, 1);
        dhd_module_cleanup();
        unregister_reboot_notifier(&dhd_reboot_notifier);
        dhd_destroy_to_notifier_skt();
}

static int __init
dhd_module_init(void)
{
        int err;
        int retry = POWERUP_MAX_RETRY;

        DHD_ERROR(("%s in\n", __FUNCTION__));

        DHD_PERIM_RADIO_INIT();

        if (firmware_path[0] != '\0') {
                strncpy(fw_bak_path, firmware_path, MOD_PARAM_PATHLEN);
                fw_bak_path[MOD_PARAM_PATHLEN-1] = '\0';
        }

        if (nvram_path[0] != '\0') {
                strncpy(nv_bak_path, nvram_path, MOD_PARAM_PATHLEN);
                nv_bak_path[MOD_PARAM_PATHLEN-1] = '\0';
        }

        do {
                err = dhd_wifi_platform_register_drv();
                if (!err) {
                        register_reboot_notifier(&dhd_reboot_notifier);
                        break;
                } else {
                        DHD_ERROR(("%s: Failed to load the driver, try cnt %d\n",
                                __FUNCTION__, retry));
                        strncpy(firmware_path, fw_bak_path, MOD_PARAM_PATHLEN);
                        firmware_path[MOD_PARAM_PATHLEN-1] = '\0';
                        strncpy(nvram_path, nv_bak_path, MOD_PARAM_PATHLEN);
                        nvram_path[MOD_PARAM_PATHLEN-1] = '\0';
                }
        } while (retry--);

        dhd_create_to_notifier_skt();

        if (err) {
                DHD_ERROR(("%s: Failed to load driver max retry reached**\n", __FUNCTION__));
        } else {
                if (!dhd_download_fw_on_driverload) {
                        dhd_driver_init_done = TRUE;
                }
        }

        DHD_ERROR(("%s out\n", __FUNCTION__));

        return err;
}

static int
dhd_reboot_callback(struct notifier_block *this, unsigned long code, void *unused)
{
        DHD_TRACE(("%s: code = %ld\n", __FUNCTION__, code));
        if (code == SYS_RESTART) {
#ifdef BCMPCIE
                is_reboot = code;
#endif /* BCMPCIE */
        }
        return NOTIFY_DONE;
}

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
#if defined(CONFIG_DEFERRED_INITCALLS) && !defined(EXYNOS_PCIE_MODULE_PATCH)
#if defined(CONFIG_MACH_UNIVERSAL7420) || defined(CONFIG_SOC_EXYNOS8890) || \
        defined(CONFIG_ARCH_MSM8996) || defined(CONFIG_ARCH_MSM8998) || \
        defined(CONFIG_SOC_EXYNOS8895) || defined(CONFIG_SOC_EXYNOS9810) || \
        defined(CONFIG_ARCH_SDM845)
deferred_module_init_sync(dhd_module_init);
#else
deferred_module_init(dhd_module_init);
#endif /* CONFIG_MACH_UNIVERSAL7420 || CONFIG_SOC_EXYNOS8890 ||
        * CONFIG_ARCH_MSM8996 || CONFIG_ARCH_MSM8998 || CONFIG_SOC_EXYNOS8895
        * CONFIG_SOC_EXYNOS9810 || CONFIG_ARCH_SDM845
        */
#elif defined(USE_LATE_INITCALL_SYNC)
late_initcall_sync(dhd_module_init);
#else
late_initcall(dhd_module_init);
#endif /* USE_LATE_INITCALL_SYNC */
#else
module_init(dhd_module_init);
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0) */

module_exit(dhd_module_exit);

/*
 * OS specific functions required to implement DHD driver in OS independent way
 */
int
dhd_os_proto_block(dhd_pub_t *pub)
{
        dhd_info_t * dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
                DHD_PERIM_UNLOCK(pub);

                down(&dhd->proto_sem);

                DHD_PERIM_LOCK(pub);
                return 1;
        }

        return 0;
}

int
dhd_os_proto_unblock(dhd_pub_t *pub)
{
        dhd_info_t * dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
                up(&dhd->proto_sem);
                return 1;
        }

        return 0;
}

void
dhd_os_dhdiovar_lock(dhd_pub_t *pub)
{
        dhd_info_t * dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
                mutex_lock(&dhd->dhd_iovar_mutex);
        }
}

void
dhd_os_dhdiovar_unlock(dhd_pub_t *pub)
{
        dhd_info_t * dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
                mutex_unlock(&dhd->dhd_iovar_mutex);
        }
}

void
dhd_os_logdump_lock(dhd_pub_t *pub)
{
        dhd_info_t *dhd = NULL;

        if (!pub)
                return;

        dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
                mutex_lock(&dhd->logdump_lock);
        }
}

void
dhd_os_logdump_unlock(dhd_pub_t *pub)
{
        dhd_info_t *dhd = NULL;

        if (!pub)
                return;

        dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
                mutex_unlock(&dhd->logdump_lock);
        }
}

unsigned long
dhd_os_dbgring_lock(void *lock)
{
        if (!lock)
                return 0;

        mutex_lock((struct mutex *)lock);

        return 0;
}

void
dhd_os_dbgring_unlock(void *lock, unsigned long flags)
{
        BCM_REFERENCE(flags);

        if (!lock)
                return;

        mutex_unlock((struct mutex *)lock);
}

unsigned int
dhd_os_get_ioctl_resp_timeout(void)
{
        return ((unsigned int)dhd_ioctl_timeout_msec);
}

void
dhd_os_set_ioctl_resp_timeout(unsigned int timeout_msec)
{
        dhd_ioctl_timeout_msec = (int)timeout_msec;
}

int
dhd_os_ioctl_resp_wait(dhd_pub_t *pub, uint *condition)
{
        dhd_info_t * dhd = (dhd_info_t *)(pub->info);
        int timeout;

        /* Convert timeout in millsecond to jiffies */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
        timeout = msecs_to_jiffies(dhd_ioctl_timeout_msec);
#else
        timeout = dhd_ioctl_timeout_msec * HZ / 1000;
#endif // endif

        DHD_PERIM_UNLOCK(pub);

        timeout = wait_event_timeout(dhd->ioctl_resp_wait, (*condition), timeout);

        DHD_PERIM_LOCK(pub);

        return timeout;
}

int
dhd_os_ioctl_resp_wake(dhd_pub_t *pub)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);

        wake_up(&dhd->ioctl_resp_wait);
        return 0;
}

int
dhd_os_d3ack_wait(dhd_pub_t *pub, uint *condition)
{
        dhd_info_t * dhd = (dhd_info_t *)(pub->info);
        int timeout;

        /* Convert timeout in millsecond to jiffies */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
        timeout = msecs_to_jiffies(D3_ACK_RESP_TIMEOUT);
#else
        timeout = D3_ACK_RESP_TIMEOUT * HZ / 1000;
#endif // endif

        DHD_PERIM_UNLOCK(pub);

        timeout = wait_event_timeout(dhd->d3ack_wait, (*condition), timeout);

        DHD_PERIM_LOCK(pub);

        return timeout;
}

int
dhd_os_d3ack_wake(dhd_pub_t *pub)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);

        wake_up(&dhd->d3ack_wait);
        return 0;
}

int
dhd_os_busbusy_wait_negation(dhd_pub_t *pub, uint *condition)
{
        dhd_info_t * dhd = (dhd_info_t *)(pub->info);
        int timeout;

        /* Wait for bus usage contexts to gracefully exit within some timeout value
         * Set time out to little higher than dhd_ioctl_timeout_msec,
         * so that IOCTL timeout should not get affected.
         */
        /* Convert timeout in millsecond to jiffies */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
        timeout = msecs_to_jiffies(DHD_BUS_BUSY_TIMEOUT);
#else
        timeout = DHD_BUS_BUSY_TIMEOUT * HZ / 1000;
#endif // endif

        timeout = wait_event_timeout(dhd->dhd_bus_busy_state_wait, !(*condition), timeout);

        return timeout;
}

/*
 * Wait until the condition *var == condition is met.
 * Returns 0 if the @condition evaluated to false after the timeout elapsed
 * Returns 1 if the @condition evaluated to true
 */
int
dhd_os_busbusy_wait_condition(dhd_pub_t *pub, uint *var, uint condition)
{
        dhd_info_t * dhd = (dhd_info_t *)(pub->info);
        int timeout;

        /* Convert timeout in millsecond to jiffies */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
        timeout = msecs_to_jiffies(DHD_BUS_BUSY_TIMEOUT);
#else
        timeout = DHD_BUS_BUSY_TIMEOUT * HZ / 1000;
#endif // endif

        timeout = wait_event_timeout(dhd->dhd_bus_busy_state_wait, (*var == condition), timeout);

        return timeout;
}

/*
 * Wait until the '(*var & bitmask) == condition' is met.
 * Returns 0 if the @condition evaluated to false after the timeout elapsed
 * Returns 1 if the @condition evaluated to true
 */
int
dhd_os_busbusy_wait_bitmask(dhd_pub_t *pub, uint *var,
                uint bitmask, uint condition)
{
        dhd_info_t * dhd = (dhd_info_t *)(pub->info);
        int timeout;

        /* Convert timeout in millsecond to jiffies */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
        timeout = msecs_to_jiffies(DHD_BUS_BUSY_TIMEOUT);
#else
        timeout = DHD_BUS_BUSY_TIMEOUT * HZ / 1000;
#endif // endif

        timeout = wait_event_timeout(dhd->dhd_bus_busy_state_wait,
                        ((*var & bitmask) == condition), timeout);

        return timeout;
}

int
dhd_os_dmaxfer_wait(dhd_pub_t *pub, uint *condition)
{
        int ret = 0;
        dhd_info_t * dhd = (dhd_info_t *)(pub->info);

        DHD_PERIM_UNLOCK(pub);
        ret = wait_event_interruptible(dhd->dmaxfer_wait, (*condition));
        DHD_PERIM_LOCK(pub);

        return ret;

}

int
dhd_os_dmaxfer_wake(dhd_pub_t *pub)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);

        wake_up(&dhd->dmaxfer_wait);
        return 0;
}

void
dhd_os_tx_completion_wake(dhd_pub_t *dhd)
{
        /* Call wmb() to make sure before waking up the other event value gets updated */
        OSL_SMP_WMB();
        wake_up(&dhd->tx_completion_wait);
}

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36))
/* Fix compilation error for FC11 */
INLINE
#endif // endif
int
dhd_os_busbusy_wake(dhd_pub_t *pub)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        /* Call wmb() to make sure before waking up the other event value gets updated */
        OSL_SMP_WMB();
        wake_up(&dhd->dhd_bus_busy_state_wait);
        return 0;
}

void
dhd_os_wd_timer_extend(void *bus, bool extend)
{
        dhd_pub_t *pub = bus;
        dhd_info_t *dhd = (dhd_info_t *)pub->info;

        if (extend)
                dhd_os_wd_timer(bus, WATCHDOG_EXTEND_INTERVAL);
        else
                dhd_os_wd_timer(bus, dhd->default_wd_interval);
}

void
dhd_os_wd_timer(void *bus, uint wdtick)
{
        dhd_pub_t *pub = bus;
        dhd_info_t *dhd = (dhd_info_t *)pub->info;
        unsigned long flags;

        DHD_TRACE(("%s: Enter\n", __FUNCTION__));

        if (!dhd) {
                DHD_ERROR(("%s: dhd NULL\n", __FUNCTION__));
                return;
        }

        DHD_GENERAL_LOCK(pub, flags);

        /* don't start the wd until fw is loaded */
        if (pub->busstate == DHD_BUS_DOWN) {
                DHD_GENERAL_UNLOCK(pub, flags);
#ifdef BCMSDIO
                if (!wdtick) {
                        DHD_OS_WD_WAKE_UNLOCK(pub);
                }
#endif /* BCMSDIO */
                return;
        }

        /* Totally stop the timer */
        if (!wdtick && dhd->wd_timer_valid == TRUE) {
                dhd->wd_timer_valid = FALSE;
                DHD_GENERAL_UNLOCK(pub, flags);
                del_timer_sync(&dhd->timer);
#ifdef BCMSDIO
                DHD_OS_WD_WAKE_UNLOCK(pub);
#endif /* BCMSDIO */
                return;
        }

         if (wdtick) {
#ifdef BCMSDIO
                DHD_OS_WD_WAKE_LOCK(pub);
                dhd_watchdog_ms = (uint)wdtick;
#endif /* BCMSDIO */
                /* Re arm the timer, at last watchdog period */
                mod_timer(&dhd->timer, jiffies + msecs_to_jiffies(dhd_watchdog_ms));
                dhd->wd_timer_valid = TRUE;
        }
        DHD_GENERAL_UNLOCK(pub, flags);
}

#ifdef DHD_PCIE_RUNTIMEPM
void
dhd_os_runtimepm_timer(void *bus, uint tick)
{
        dhd_pub_t *pub = bus;
        dhd_info_t *dhd = (dhd_info_t *)pub->info;
        unsigned long flags;

        DHD_TRACE(("%s: Enter\n", __FUNCTION__));

        if (!dhd) {
                DHD_ERROR(("%s: dhd is NULL\n", __FUNCTION__));
                return;
        }

        DHD_GENERAL_LOCK(pub, flags);

        /* don't start the RPM until fw is loaded */
        if (DHD_BUS_CHECK_DOWN_OR_DOWN_IN_PROGRESS(pub)) {
                DHD_GENERAL_UNLOCK(pub, flags);
                return;
        }

        /* If tick is non-zero, the request is to start the timer */
        if (tick) {
                /* Start the timer only if its not already running */
                if (dhd->rpm_timer_valid == FALSE) {
                        mod_timer(&dhd->rpm_timer, jiffies + msecs_to_jiffies(dhd_runtimepm_ms));
                        dhd->rpm_timer_valid = TRUE;
                }
        } else {
                /* tick is zero, we have to stop the timer */
                /* Stop the timer only if its running, otherwise we don't have to do anything */
                if (dhd->rpm_timer_valid == TRUE) {
                        dhd->rpm_timer_valid = FALSE;
                        DHD_GENERAL_UNLOCK(pub, flags);
                        del_timer_sync(&dhd->rpm_timer);
                        /* we have already released the lock, so just go to exit */
                        goto exit;
                }
        }

        DHD_GENERAL_UNLOCK(pub, flags);
exit:
        return;

}

#endif /* DHD_PCIE_RUNTIMEPM */

void *
dhd_os_open_image1(dhd_pub_t *pub, char *filename)
{
        struct file *fp;
        int size;

        fp = filp_open(filename, O_RDONLY, 0);
        /*
         * 2.6.11 (FC4) supports filp_open() but later revs don't?
         * Alternative:
         * fp = open_namei(AT_FDCWD, filename, O_RD, 0);
         * ???
         */
         if (IS_ERR(fp)) {
                 fp = NULL;
                 goto err;
         }

         if (!S_ISREG(file_inode(fp)->i_mode)) {
                 DHD_ERROR(("%s: %s is not regular file\n", __FUNCTION__, filename));
                 fp = NULL;
                 goto err;
         }

         size = i_size_read(file_inode(fp));
         if (size <= 0) {
                 DHD_ERROR(("%s: %s file size invalid %d\n", __FUNCTION__, filename, size));
                 fp = NULL;
                 goto err;
         }

         DHD_ERROR(("%s: %s (%d bytes) open success\n", __FUNCTION__, filename, size));

err:
         return fp;
}

int
dhd_os_get_image_block(char *buf, int len, void *image)
{
        struct file *fp = (struct file *)image;
        int rdlen;
        int size;

        if (!image) {
                return 0;
        }

        size = i_size_read(file_inode(fp));
        rdlen = kernel_read(fp, fp->f_pos, buf, MIN(len, size));

        if (len >= size && size != rdlen) {
                return -EIO;
        }

        if (rdlen > 0) {
                fp->f_pos += rdlen;
        }

        return rdlen;
}

#if defined(BT_OVER_SDIO)
int
dhd_os_gets_image(dhd_pub_t *pub, char *str, int len, void *image)
{
        struct file *fp = (struct file *)image;
        int rd_len;
        uint str_len = 0;
        char *str_end = NULL;

        if (!image)
                return 0;

        rd_len = kernel_read(fp, fp->f_pos, str, len);
        str_end = strnchr(str, len, '\n');
        if (str_end == NULL) {
                goto err;
        }
        str_len = (uint)(str_end - str);

        /* Advance file pointer past the string length */
        fp->f_pos += str_len + 1;
        bzero(str_end, rd_len - str_len);

err:
        return str_len;
}
#endif /* defined (BT_OVER_SDIO) */

int
dhd_os_get_image_size(void *image)
{
        struct file *fp = (struct file *)image;
        int size;
        if (!image) {
                return 0;
        }

        size = i_size_read(file_inode(fp));

        return size;
}

void
dhd_os_close_image1(dhd_pub_t *pub, void *image)
{
        if (image) {
                filp_close((struct file *)image, NULL);
        }
}

void
dhd_os_sdlock(dhd_pub_t *pub)
{
        dhd_info_t *dhd;

        dhd = (dhd_info_t *)(pub->info);

        if (dhd_dpc_prio >= 0)
                down(&dhd->sdsem);
        else
                spin_lock_bh(&dhd->sdlock);
}

void
dhd_os_sdunlock(dhd_pub_t *pub)
{
        dhd_info_t *dhd;

        dhd = (dhd_info_t *)(pub->info);

        if (dhd_dpc_prio >= 0)
                up(&dhd->sdsem);
        else
                spin_unlock_bh(&dhd->sdlock);
}

void
dhd_os_sdlock_txq(dhd_pub_t *pub)
{
        dhd_info_t *dhd;

        dhd = (dhd_info_t *)(pub->info);
        spin_lock_bh(&dhd->txqlock);
}

void
dhd_os_sdunlock_txq(dhd_pub_t *pub)
{
        dhd_info_t *dhd;

        dhd = (dhd_info_t *)(pub->info);
        spin_unlock_bh(&dhd->txqlock);
}

void
dhd_os_sdlock_rxq(dhd_pub_t *pub)
{
}

void
dhd_os_sdunlock_rxq(dhd_pub_t *pub)
{
}

static void
dhd_os_rxflock(dhd_pub_t *pub)
{
        dhd_info_t *dhd;

        dhd = (dhd_info_t *)(pub->info);
        spin_lock_bh(&dhd->rxf_lock);

}

static void
dhd_os_rxfunlock(dhd_pub_t *pub)
{
        dhd_info_t *dhd;

        dhd = (dhd_info_t *)(pub->info);
        spin_unlock_bh(&dhd->rxf_lock);
}

#ifdef DHDTCPACK_SUPPRESS
unsigned long
dhd_os_tcpacklock(dhd_pub_t *pub)
{
        dhd_info_t *dhd;
        unsigned long flags = 0;

        dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
#ifdef BCMSDIO
                spin_lock_bh(&dhd->tcpack_lock);
#else
                spin_lock_irqsave(&dhd->tcpack_lock, flags);
#endif /* BCMSDIO */
        }

        return flags;
}

void
dhd_os_tcpackunlock(dhd_pub_t *pub, unsigned long flags)
{
        dhd_info_t *dhd;

#ifdef BCMSDIO
        BCM_REFERENCE(flags);
#endif /* BCMSDIO */

        dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
#ifdef BCMSDIO
                spin_unlock_bh(&dhd->tcpack_lock);
#else
                spin_unlock_irqrestore(&dhd->tcpack_lock, flags);
#endif /* BCMSDIO */
        }
}
#endif /* DHDTCPACK_SUPPRESS */

uint8* dhd_os_prealloc(dhd_pub_t *dhdpub, int section, uint size, bool kmalloc_if_fail)
{
        uint8* buf;
        gfp_t flags = CAN_SLEEP() ? GFP_KERNEL: GFP_ATOMIC;

        buf = (uint8*)wifi_platform_prealloc(dhdpub->info->adapter, section, size);
        if (buf == NULL && kmalloc_if_fail)
                buf = kmalloc(size, flags);

        return buf;
}

void dhd_os_prefree(dhd_pub_t *dhdpub, void *addr, uint size)
{
}

#if defined(WL_WIRELESS_EXT)
struct iw_statistics *
dhd_get_wireless_stats(struct net_device *dev)
{
        int res = 0;
        dhd_info_t *dhd = DHD_DEV_INFO(dev);

        if (!dhd->pub.up) {
                return NULL;
        }

        res = wl_iw_get_wireless_stats(dev, &dhd->iw.wstats);

        if (res == 0)
                return &dhd->iw.wstats;
        else
                return NULL;
}
#endif /* defined(WL_WIRELESS_EXT) */

static int
dhd_wl_host_event(dhd_info_t *dhd, int ifidx, void *pktdata, uint16 pktlen,
        wl_event_msg_t *event, void **data)
{
        int bcmerror = 0;
#ifdef WL_CFG80211
        unsigned long flags = 0;
#ifdef DYNAMIC_MUMIMO_CONTROL
        static uint32 reassoc_err = 0;
#endif /* DYNAMIC_MUMIMO_CONTROL */
#endif /* WL_CFG80211 */
        ASSERT(dhd != NULL);

#ifdef SHOW_LOGTRACE
        bcmerror = wl_process_host_event(&dhd->pub, &ifidx, pktdata, pktlen, event, data,
                &dhd->event_data);
#else
        bcmerror = wl_process_host_event(&dhd->pub, &ifidx, pktdata, pktlen, event, data,
                NULL);
#endif /* SHOW_LOGTRACE */
        if (unlikely(bcmerror != BCME_OK)) {
                return bcmerror;
        }

        if (ntoh32(event->event_type) == WLC_E_IF) {
                /* WLC_E_IF event types are consumed by wl_process_host_event.
                 * For ifadd/del ops, the netdev ptr may not be valid at this
                 * point. so return before invoking cfg80211/wext handlers.
                 */
                return BCME_OK;
        }

#if defined(WL_WIRELESS_EXT)
        if (event->bsscfgidx == 0) {
                /*
                 * Wireless ext is on primary interface only
                 */
                ASSERT(dhd->iflist[ifidx] != NULL);
                ASSERT(dhd->iflist[ifidx]->net != NULL);

                if (dhd->iflist[ifidx]->net) {
                        wl_iw_event(dhd->iflist[ifidx]->net, event, *data);
                }
        }
#endif /* defined(WL_WIRELESS_EXT)  */

#ifdef WL_CFG80211
        if (dhd->iflist[ifidx]->net) {
                spin_lock_irqsave(&dhd->pub.up_lock, flags);
                if (dhd->pub.up) {
                        wl_cfg80211_event(dhd->iflist[ifidx]->net, event, *data);
                }
                spin_unlock_irqrestore(&dhd->pub.up_lock, flags);
        }
#ifdef DYNAMIC_MUMIMO_CONTROL
#define REASSOC_ERROR_RETRY_LIMIT       1
        if (dhd->pub.reassoc_mumimo_sw) {
                uint event_type = ntoh32(event->event_type);
                uint status = ntoh32(event->status);

                if (event_type == WLC_E_REASSOC) {
                        if (status == WLC_E_STATUS_SUCCESS) {
                                reassoc_err = 0;
                        } else {
                                reassoc_err++;
                        }

                        if (reassoc_err > REASSOC_ERROR_RETRY_LIMIT) {
                                dhd->pub.reassoc_mumimo_sw = FALSE;
                                dhd->pub.murx_block_eapol = FALSE;
                                DHD_ENABLE_RUNTIME_PM(&dhd->pub);
                                dhd_txflowcontrol(&dhd->pub, ALL_INTERFACES, OFF);
                        }
                }
        }
#undef REASSOC_ERROR_RETRY_LIMIT
#endif /* DYNAMIC_MUMIMO_CONTROL */
#endif /* defined(WL_CFG80211) */

        return (bcmerror);
}

/* send up locally generated event */
void
dhd_sendup_event(dhd_pub_t *dhdp, wl_event_msg_t *event, void *data)
{
        switch (ntoh32(event->event_type)) {
        /* Handle error case or further events here */
        default:
                break;
        }
}

#ifdef LOG_INTO_TCPDUMP
void
dhd_sendup_log(dhd_pub_t *dhdp, void *data, int data_len)
{
        struct sk_buff *p, *skb;
        uint32 pktlen;
        int len;
        dhd_if_t *ifp;
        dhd_info_t *dhd;
        uchar *skb_data;
        int ifidx = 0;
        struct ether_header eth;

        pktlen = sizeof(eth) + data_len;
        dhd = dhdp->info;

        if ((p = PKTGET(dhdp->osh, pktlen, FALSE))) {
                ASSERT(ISALIGNED((uintptr)PKTDATA(dhdp->osh, p), sizeof(uint32)));

                bcopy(&dhdp->mac, &eth.ether_dhost, ETHER_ADDR_LEN);
                bcopy(&dhdp->mac, &eth.ether_shost, ETHER_ADDR_LEN);
                ETHER_TOGGLE_LOCALADDR(&eth.ether_shost);
                eth.ether_type = hton16(ETHER_TYPE_BRCM);

                bcopy((void *)&eth, PKTDATA(dhdp->osh, p), sizeof(eth));
                bcopy(data, PKTDATA(dhdp->osh, p) + sizeof(eth), data_len);
                skb = PKTTONATIVE(dhdp->osh, p);
                skb_data = skb->data;
                len = skb->len;

                ifidx = dhd_ifname2idx(dhd, "wlan0");
                ifp = dhd->iflist[ifidx];
                if (ifp == NULL)
                         ifp = dhd->iflist[0];

                ASSERT(ifp);
                skb->dev = ifp->net;
                skb->protocol = eth_type_trans(skb, skb->dev);
                skb->data = skb_data;
                skb->len = len;

                /* Strip header, count, deliver upward */
                skb_pull(skb, ETH_HLEN);

                bcm_object_trace_opr(skb, BCM_OBJDBG_REMOVE,
                        __FUNCTION__, __LINE__);
                /* Send the packet */
                if (in_interrupt()) {
                        netif_rx(skb);
                } else {
                        netif_rx_ni(skb);
                }
        } else {
                /* Could not allocate a sk_buf */
                DHD_ERROR(("%s: unable to alloc sk_buf", __FUNCTION__));
        }
}
#endif /* LOG_INTO_TCPDUMP */

void dhd_wait_for_event(dhd_pub_t *dhd, bool *lockvar)
{
#if defined(BCMSDIO) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0))
        struct dhd_info *dhdinfo =  dhd->info;

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
        int timeout = msecs_to_jiffies(IOCTL_RESP_TIMEOUT);
#else
        int timeout = (IOCTL_RESP_TIMEOUT / 1000) * HZ;
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */

        dhd_os_sdunlock(dhd);
        wait_event_timeout(dhdinfo->ctrl_wait, (*lockvar == FALSE), timeout);
        dhd_os_sdlock(dhd);
#endif /* defined(BCMSDIO) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)) */
        return;
} /* dhd_init_static_strs_array */

void dhd_wait_event_wakeup(dhd_pub_t *dhd)
{
#if defined(BCMSDIO) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0))
        struct dhd_info *dhdinfo =  dhd->info;
        if (waitqueue_active(&dhdinfo->ctrl_wait))
                wake_up(&dhdinfo->ctrl_wait);
#endif // endif
        return;
}

#if defined(BCMSDIO) || defined(BCMPCIE)
int
dhd_net_bus_devreset(struct net_device *dev, uint8 flag)
{
        int ret;

        dhd_info_t *dhd = DHD_DEV_INFO(dev);

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
        if (pm_runtime_get_sync(dhd_bus_to_dev(dhd->pub.bus)) < 0)
                return BCME_ERROR;
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */

        if (flag == TRUE) {
                /* Issue wl down command before resetting the chip */
                if (dhd_wl_ioctl_cmd(&dhd->pub, WLC_DOWN, NULL, 0, TRUE, 0) < 0) {
                        DHD_TRACE(("%s: wl down failed\n", __FUNCTION__));
                }
#ifdef PROP_TXSTATUS
                if (dhd->pub.wlfc_enabled) {
                        dhd_wlfc_deinit(&dhd->pub);
                }
#endif /* PROP_TXSTATUS */
#ifdef PNO_SUPPORT
                if (dhd->pub.pno_state) {
                        dhd_pno_deinit(&dhd->pub);
                }
#endif // endif
#ifdef RTT_SUPPORT
                if (dhd->pub.rtt_state) {
                        dhd_rtt_deinit(&dhd->pub);
                }
#endif /* RTT_SUPPORT */

#if defined(DBG_PKT_MON) && !defined(DBG_PKT_MON_INIT_DEFAULT)
                dhd_os_dbg_detach_pkt_monitor(&dhd->pub);
#endif /* DBG_PKT_MON */
        }

#ifdef BCMSDIO
        if (!flag) {
                dhd_update_fw_nv_path(dhd);
                /* update firmware and nvram path to sdio bus */
                dhd_bus_update_fw_nv_path(dhd->pub.bus,
                        dhd->fw_path, dhd->nv_path);
        }
#endif /* BCMSDIO */

        ret = dhd_bus_devreset(&dhd->pub, flag);

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
        pm_runtime_mark_last_busy(dhd_bus_to_dev(dhd->pub.bus));
        pm_runtime_put_autosuspend(dhd_bus_to_dev(dhd->pub.bus));
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */

        if (flag) {
                /* Clear some flags for recovery logic */
                dhd->pub.dongle_trap_occured = 0;
                dhd->pub.iovar_timeout_occured = 0;
#ifdef PCIE_FULL_DONGLE
                dhd->pub.d3ack_timeout_occured = 0;
#endif /* PCIE_FULL_DONGLE */
#ifdef DHD_MAP_LOGGING
                dhd->pub.smmu_fault_occurred = 0;
#endif /* DHD_MAP_LOGGING */
        }

        if (ret) {
                DHD_ERROR(("%s: dhd_bus_devreset: %d\n", __FUNCTION__, ret));
        }

        return ret;
}

#ifdef BCMSDIO
int
dhd_net_bus_suspend(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        return dhd_bus_suspend(&dhd->pub);
}

int
dhd_net_bus_resume(struct net_device *dev, uint8 stage)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        return dhd_bus_resume(&dhd->pub, stage);
}

#endif /* BCMSDIO */
#endif /* BCMSDIO || BCMPCIE */

int net_os_set_suspend_disable(struct net_device *dev, int val)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        int ret = 0;

        if (dhd) {
                ret = dhd->pub.suspend_disable_flag;
                dhd->pub.suspend_disable_flag = val;
        }
        return ret;
}

int net_os_set_suspend(struct net_device *dev, int val, int force)
{
        int ret = 0;
        dhd_info_t *dhd = DHD_DEV_INFO(dev);

        if (dhd) {
#ifdef CONFIG_MACH_UNIVERSAL7420
#if defined(ARGOS_RPS_CPU_CTL) && defined(DHD_LB_RXP)
                if (!val) {
                        /* Force to set rps_cpus to specific CPU core */
                        dhd_rps_cpus_enable(dev, TRUE);
                }
#endif /* ARGOS_RPS_CPU_CTL && DHD_LB_RXP */
#endif /* CONFIG_MACH_UNIVERSAL7420 */
#if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND)
                ret = dhd_set_suspend(val, &dhd->pub);
#else
                ret = dhd_suspend_resume_helper(dhd, val, force);
#endif // endif
#ifdef WL_CFG80211
                wl_cfg80211_update_power_mode(dev);
#endif // endif
        }
        return ret;
}

int net_os_set_suspend_bcn_li_dtim(struct net_device *dev, int val)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);

        if (dhd) {
                DHD_ERROR(("%s: Set bcn_li_dtim in suspend %d\n",
                        __FUNCTION__, val));
                dhd->pub.suspend_bcn_li_dtim = val;
        }

        return 0;
}

int net_os_set_max_dtim_enable(struct net_device *dev, int val)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);

        if (dhd) {
                DHD_ERROR(("%s: use MAX bcn_li_dtim in suspend %s\n",
                        __FUNCTION__, (val ? "Enable" : "Disable")));
                if (val) {
                        dhd->pub.max_dtim_enable = TRUE;
                } else {
                        dhd->pub.max_dtim_enable = FALSE;
                }
        } else {
                return -1;
        }

        return 0;
}

int
net_os_set_disable_dtim_in_suspend(struct net_device *dev, int val)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);

        if (dhd) {
                DHD_ERROR(("%s: Disable bcn_li_dtim in suspend : %s\n",
                        __FUNCTION__, (val ? "Enable" : "Disable")));
                if (val) {
                        dhd->pub.disable_dtim_in_suspend = TRUE;
                } else {
                        dhd->pub.disable_dtim_in_suspend = FALSE;
                }
        } else {
                return -1;
        }

        return 0;
}

#ifdef PKT_FILTER_SUPPORT
int net_os_rxfilter_add_remove(struct net_device *dev, int add_remove, int num)
{
        int ret = 0;

#ifndef GAN_LITE_NAT_KEEPALIVE_FILTER
        dhd_info_t *dhd = DHD_DEV_INFO(dev);

        DHD_ERROR(("%s: add_remove = %d, num = %d\n", __FUNCTION__, add_remove, num));
        if (!dhd || (num == DHD_UNICAST_FILTER_NUM)) {
                return 0;
        }

#ifdef BLOCK_IPV6_PACKET
        /* customer want to use NO IPV6 packets only */
        if (num == DHD_MULTICAST6_FILTER_NUM) {
                return 0;
        }
#endif /* BLOCK_IPV6_PACKET */

        if (num >= dhd->pub.pktfilter_count) {
                return -EINVAL;
        }

        ret = dhd_packet_filter_add_remove(&dhd->pub, add_remove, num);
#endif /* !GAN_LITE_NAT_KEEPALIVE_FILTER */

        return ret;
}

int dhd_os_enable_packet_filter(dhd_pub_t *dhdp, int val)

{
        int ret = 0;

        /* Packet filtering is set only if we still in early-suspend and
         * we need either to turn it ON or turn it OFF
         * We can always turn it OFF in case of early-suspend, but we turn it
         * back ON only if suspend_disable_flag was not set
        */
        if (dhdp && dhdp->up) {
                if (dhdp->in_suspend) {
                        if (!val || (val && !dhdp->suspend_disable_flag))
                                dhd_enable_packet_filter(val, dhdp);
                }
        }
        return ret;
}

/* function to enable/disable packet for Network device */
int net_os_enable_packet_filter(struct net_device *dev, int val)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);

        DHD_ERROR(("%s: val = %d\n", __FUNCTION__, val));
        return dhd_os_enable_packet_filter(&dhd->pub, val);
}
#endif /* PKT_FILTER_SUPPORT */

int
dhd_dev_init_ioctl(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        int ret;

        if ((ret = dhd_sync_with_dongle(&dhd->pub)) < 0)
                goto done;

done:
        return ret;
}

int
dhd_dev_get_feature_set(struct net_device *dev)
{
        dhd_info_t *ptr = *(dhd_info_t **)netdev_priv(dev);
        dhd_pub_t *dhd = (&ptr->pub);
        int feature_set = 0;

        if (FW_SUPPORTED(dhd, sta))
                feature_set |= WIFI_FEATURE_INFRA;
        if (FW_SUPPORTED(dhd, dualband))
                feature_set |= WIFI_FEATURE_INFRA_5G;
        if (FW_SUPPORTED(dhd, p2p))
                feature_set |= WIFI_FEATURE_P2P;
        if (dhd->op_mode & DHD_FLAG_HOSTAP_MODE)
                feature_set |= WIFI_FEATURE_SOFT_AP;
        if (FW_SUPPORTED(dhd, tdls))
                feature_set |= WIFI_FEATURE_TDLS;
        if (FW_SUPPORTED(dhd, vsdb))
                feature_set |= WIFI_FEATURE_TDLS_OFFCHANNEL;
        if (FW_SUPPORTED(dhd, nan)) {
                feature_set |= WIFI_FEATURE_NAN;
                /* NAN is essentail for d2d rtt */
                if (FW_SUPPORTED(dhd, rttd2d))
                        feature_set |= WIFI_FEATURE_D2D_RTT;
        }
#ifdef RTT_SUPPORT
        feature_set |= WIFI_FEATURE_D2D_RTT;
        feature_set |= WIFI_FEATURE_D2AP_RTT;
#endif /* RTT_SUPPORT */
#ifdef LINKSTAT_SUPPORT
        feature_set |= WIFI_FEATURE_LINKSTAT;
#endif /* LINKSTAT_SUPPORT */

#if defined(PNO_SUPPORT) && !defined(DISABLE_ANDROID_PNO)
        if (dhd_is_pno_supported(dhd)) {
                feature_set |= WIFI_FEATURE_PNO;
#ifdef GSCAN_SUPPORT
                feature_set |= WIFI_FEATURE_GSCAN;
                feature_set |= WIFI_FEATURE_HAL_EPNO;
#endif /* GSCAN_SUPPORT */
        }
#endif /* PNO_SUPPORT && !DISABLE_ANDROID_PNO */
#ifdef RSSI_MONITOR_SUPPORT
        if (FW_SUPPORTED(dhd, rssi_mon)) {
                feature_set |= WIFI_FEATURE_RSSI_MONITOR;
        }
#endif /* RSSI_MONITOR_SUPPORT */
#ifdef WL11U
        feature_set |= WIFI_FEATURE_HOTSPOT;
#endif /* WL11U */
#ifdef NDO_CONFIG_SUPPORT
        feature_set |= WIFI_FEATURE_CONFIG_NDO;
#endif /* NDO_CONFIG_SUPPORT */
#ifdef KEEP_ALIVE
        feature_set |= WIFI_FEATURE_MKEEP_ALIVE;
#endif /* KEEP_ALIVE */
#ifdef SUPPORT_RANDOM_MAC_SCAN
        feature_set |= WIFI_FEATURE_SCAN_RAND;
#endif /* SUPPORT_RANDOM_MAC_SCAN */
#ifdef FILTER_IE
        if (FW_SUPPORTED(dhd, fie)) {
                feature_set |= WIFI_FEATURE_FILTER_IE;
        }
#endif /* FILTER_IE */
#ifdef ROAMEXP_SUPPORT
        /* Check if the Android O roam feature is supported by FW */
        if (!(BCME_UNSUPPORTED == dhd_dev_set_whitelist_ssid(dev, NULL, 0, true))) {
                feature_set |= WIFI_FEATURE_CONTROL_ROAMING;
        }
#endif /* ROAMEXP_SUPPORT */
        return feature_set;
}

int
dhd_dev_get_feature_set_matrix(struct net_device *dev, int num)
{
        int feature_set_full;
        int ret = 0;

        feature_set_full = dhd_dev_get_feature_set(dev);

        /* Common feature set for all interface */
        ret = (feature_set_full & WIFI_FEATURE_INFRA) |
                (feature_set_full & WIFI_FEATURE_INFRA_5G) |
                (feature_set_full & WIFI_FEATURE_D2D_RTT) |
                (feature_set_full & WIFI_FEATURE_D2AP_RTT) |
                (feature_set_full & WIFI_FEATURE_RSSI_MONITOR) |
                (feature_set_full & WIFI_FEATURE_EPR);

        /* Specific feature group for each interface */
        switch (num) {
        case 0:
                ret |= (feature_set_full & WIFI_FEATURE_P2P) |
                        /* Not supported yet */
                        /* (feature_set_full & WIFI_FEATURE_NAN) | */
                        (feature_set_full & WIFI_FEATURE_TDLS) |
                        (feature_set_full & WIFI_FEATURE_PNO) |
                        (feature_set_full & WIFI_FEATURE_HAL_EPNO) |
                        (feature_set_full & WIFI_FEATURE_BATCH_SCAN) |
                        (feature_set_full & WIFI_FEATURE_GSCAN) |
                        (feature_set_full & WIFI_FEATURE_HOTSPOT) |
                        (feature_set_full & WIFI_FEATURE_ADDITIONAL_STA);
                break;

        case 1:
                ret |= (feature_set_full & WIFI_FEATURE_P2P);
                /* Not yet verified NAN with P2P */
                /* (feature_set_full & WIFI_FEATURE_NAN) | */
                break;

        case 2:
                ret |= (feature_set_full & WIFI_FEATURE_NAN) |
                        (feature_set_full & WIFI_FEATURE_TDLS) |
                        (feature_set_full & WIFI_FEATURE_TDLS_OFFCHANNEL);
                break;

        default:
                ret = WIFI_FEATURE_INVALID;
                DHD_ERROR(("%s: Out of index(%d) for get feature set\n", __FUNCTION__, num));
                break;
        }

        return ret;
}
#ifdef CUSTOM_FORCE_NODFS_FLAG
int
dhd_dev_set_nodfs(struct net_device *dev, u32 nodfs)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);

        if (nodfs)
                dhd->pub.dhd_cflags |= WLAN_PLAT_NODFS_FLAG;
        else
                dhd->pub.dhd_cflags &= ~WLAN_PLAT_NODFS_FLAG;
        dhd->pub.force_country_change = TRUE;
        return 0;
}
#endif /* CUSTOM_FORCE_NODFS_FLAG */
#ifdef NDO_CONFIG_SUPPORT
int
dhd_dev_ndo_cfg(struct net_device *dev, u8 enable)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
        dhd_pub_t *dhdp = &dhd->pub;
        int ret = 0;

        if (enable) {
                /* enable ND offload feature (will be enabled in FW on suspend) */
                dhdp->ndo_enable = TRUE;

                /* Update changes of anycast address & DAD failed address */
                ret = dhd_dev_ndo_update_inet6addr(dev);
                if ((ret < 0) && (ret != BCME_NORESOURCE)) {
                        DHD_ERROR(("%s: failed to update host ip addr: %d\n", __FUNCTION__, ret));
                        return ret;
                }
        } else {
                /* disable ND offload feature */
                dhdp->ndo_enable = FALSE;

                /* disable ND offload in FW */
                ret = dhd_ndo_enable(dhdp, FALSE);
                if (ret < 0) {
                        DHD_ERROR(("%s: failed to disable NDO: %d\n", __FUNCTION__, ret));
                }
        }
        return ret;
}

/* #pragma used as a WAR to fix build failure,
* ignore dropping of 'const' qualifier in 'list_entry' macro
* this pragma disables the warning only for the following function
*/
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"

static int
dhd_dev_ndo_get_valid_inet6addr_count(struct inet6_dev *inet6)
{
        struct inet6_ifaddr *ifa;
        struct ifacaddr6 *acaddr = NULL;
        int addr_count = 0;

        /* lock */
        read_lock_bh(&inet6->lock);

        /* Count valid unicast address */
        list_for_each_entry(ifa, &inet6->addr_list, if_list) {
                if ((ifa->flags & IFA_F_DADFAILED) == 0) {
                        addr_count++;
                }
        }

        /* Count anycast address */
        acaddr = inet6->ac_list;
        while (acaddr) {
                addr_count++;
                acaddr = acaddr->aca_next;
        }

        /* unlock */
        read_unlock_bh(&inet6->lock);

        return addr_count;
}

int
dhd_dev_ndo_update_inet6addr(struct net_device *dev)
{
        dhd_info_t *dhd;
        dhd_pub_t *dhdp;
        struct inet6_dev *inet6;
        struct inet6_ifaddr *ifa;
        struct ifacaddr6 *acaddr = NULL;
        struct in6_addr *ipv6_addr = NULL;
        int cnt, i;
        int ret = BCME_OK;

        /*
         * this function evaulates host ip address in struct inet6_dev
         * unicast addr in inet6_dev->addr_list
         * anycast addr in inet6_dev->ac_list
         * while evaluating inet6_dev, read_lock_bh() is required to prevent
         * access on null(freed) pointer.
         */

        if (dev) {
                inet6 = dev->ip6_ptr;
                if (!inet6) {
                        DHD_ERROR(("%s: Invalid inet6_dev\n", __FUNCTION__));
                        return BCME_ERROR;
                }

                dhd = DHD_DEV_INFO(dev);
                if (!dhd) {
                        DHD_ERROR(("%s: Invalid dhd_info\n", __FUNCTION__));
                        return BCME_ERROR;
                }
                dhdp = &dhd->pub;

                if (dhd_net2idx(dhd, dev) != 0) {
                        DHD_ERROR(("%s: Not primary interface\n", __FUNCTION__));
                        return BCME_ERROR;
                }
        } else {
                DHD_ERROR(("%s: Invalid net_device\n", __FUNCTION__));
                return BCME_ERROR;
        }

        /* Check host IP overflow */
        cnt = dhd_dev_ndo_get_valid_inet6addr_count(inet6);
        if (cnt > dhdp->ndo_max_host_ip) {
                if (!dhdp->ndo_host_ip_overflow) {
                        dhdp->ndo_host_ip_overflow = TRUE;
                        /* Disable ND offload in FW */
                        DHD_INFO(("%s: Host IP overflow, disable NDO\n", __FUNCTION__));
                        ret = dhd_ndo_enable(dhdp, FALSE);
                }

                return ret;
        }

        /*
         * Allocate ipv6 addr buffer to store addresses to be added/removed.
         * driver need to lock inet6_dev while accessing structure. but, driver
         * cannot use ioctl while inet6_dev locked since it requires scheduling
         * hence, copy addresses to the buffer and do ioctl after unlock.
         */
        ipv6_addr = (struct in6_addr *)MALLOC(dhdp->osh,
                sizeof(struct in6_addr) * dhdp->ndo_max_host_ip);
        if (!ipv6_addr) {
                DHD_ERROR(("%s: failed to alloc ipv6 addr buffer\n", __FUNCTION__));
                return BCME_NOMEM;
        }

        /* Find DAD failed unicast address to be removed */
        cnt = 0;
        read_lock_bh(&inet6->lock);
        list_for_each_entry(ifa, &inet6->addr_list, if_list) {
                /* DAD failed unicast address */
                if ((ifa->flags & IFA_F_DADFAILED) &&
                        (cnt < dhdp->ndo_max_host_ip)) {
                                memcpy(&ipv6_addr[cnt], &ifa->addr, sizeof(struct in6_addr));
                                cnt++;
                }
        }
        read_unlock_bh(&inet6->lock);

        /* Remove DAD failed unicast address */
        for (i = 0; i < cnt; i++) {
                DHD_INFO(("%s: Remove DAD failed addr\n", __FUNCTION__));
                ret = dhd_ndo_remove_ip_by_addr(dhdp, (char *)&ipv6_addr[i], 0);
                if (ret < 0) {
                        goto done;
                }
        }

        /* Remove all anycast address */
        ret = dhd_ndo_remove_ip_by_type(dhdp, WL_ND_IPV6_ADDR_TYPE_ANYCAST, 0);
        if (ret < 0) {
                goto done;
        }

        /*
         * if ND offload was disabled due to host ip overflow,
         * attempt to add valid unicast address.
         */
        if (dhdp->ndo_host_ip_overflow) {
                /* Find valid unicast address */
                cnt = 0;
                read_lock_bh(&inet6->lock);
                list_for_each_entry(ifa, &inet6->addr_list, if_list) {
                        /* valid unicast address */
                        if (!(ifa->flags & IFA_F_DADFAILED) &&
                                (cnt < dhdp->ndo_max_host_ip)) {
                                        memcpy(&ipv6_addr[cnt], &ifa->addr,
                                                sizeof(struct in6_addr));
                                        cnt++;
                        }
                }
                read_unlock_bh(&inet6->lock);

                /* Add valid unicast address */
                for (i = 0; i < cnt; i++) {
                        ret = dhd_ndo_add_ip_with_type(dhdp,
                                (char *)&ipv6_addr[i], WL_ND_IPV6_ADDR_TYPE_UNICAST, 0);
                        if (ret < 0) {
                                goto done;
                        }
                }
        }

        /* Find anycast address */
        cnt = 0;
        read_lock_bh(&inet6->lock);
        acaddr = inet6->ac_list;
        while (acaddr) {
                if (cnt < dhdp->ndo_max_host_ip) {
                        memcpy(&ipv6_addr[cnt], &acaddr->aca_addr, sizeof(struct in6_addr));
                        cnt++;
                }
                acaddr = acaddr->aca_next;
        }
        read_unlock_bh(&inet6->lock);

        /* Add anycast address */
        for (i = 0; i < cnt; i++) {
                ret = dhd_ndo_add_ip_with_type(dhdp,
                        (char *)&ipv6_addr[i], WL_ND_IPV6_ADDR_TYPE_ANYCAST, 0);
                if (ret < 0) {
                        goto done;
                }
        }

        /* Now All host IP addr were added successfully */
        if (dhdp->ndo_host_ip_overflow) {
                dhdp->ndo_host_ip_overflow = FALSE;
                if (dhdp->in_suspend) {
                        /* drvier is in (early) suspend state, need to enable ND offload in FW */
                        DHD_INFO(("%s: enable NDO\n", __FUNCTION__));
                        ret = dhd_ndo_enable(dhdp, TRUE);
                }
        }

done:
        if (ipv6_addr) {
                MFREE(dhdp->osh, ipv6_addr, sizeof(struct in6_addr) * dhdp->ndo_max_host_ip);
        }

        return ret;
}
#pragma GCC diagnostic pop

#endif /* NDO_CONFIG_SUPPORT */

#ifdef PNO_SUPPORT
/* Linux wrapper to call common dhd_pno_stop_for_ssid */
int
dhd_dev_pno_stop_for_ssid(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);

        return (dhd_pno_stop_for_ssid(&dhd->pub));
}
/* Linux wrapper to call common dhd_pno_set_for_ssid */
int
dhd_dev_pno_set_for_ssid(struct net_device *dev, wlc_ssid_ext_t* ssids_local, int nssid,
        uint16  scan_fr, int pno_repeat, int pno_freq_expo_max, uint16 *channel_list, int nchan)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);

        return (dhd_pno_set_for_ssid(&dhd->pub, ssids_local, nssid, scan_fr,
                pno_repeat, pno_freq_expo_max, channel_list, nchan));
}

/* Linux wrapper to call common dhd_pno_enable */
int
dhd_dev_pno_enable(struct net_device *dev, int enable)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);

        return (dhd_pno_enable(&dhd->pub, enable));
}

/* Linux wrapper to call common dhd_pno_set_for_hotlist */
int
dhd_dev_pno_set_for_hotlist(struct net_device *dev, wl_pfn_bssid_t *p_pfn_bssid,
        struct dhd_pno_hotlist_params *hotlist_params)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        return (dhd_pno_set_for_hotlist(&dhd->pub, p_pfn_bssid, hotlist_params));
}
/* Linux wrapper to call common dhd_dev_pno_stop_for_batch */
int
dhd_dev_pno_stop_for_batch(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        return (dhd_pno_stop_for_batch(&dhd->pub));
}
/* Linux wrapper to call common dhd_dev_pno_set_for_batch */
int
dhd_dev_pno_set_for_batch(struct net_device *dev, struct dhd_pno_batch_params *batch_params)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        return (dhd_pno_set_for_batch(&dhd->pub, batch_params));
}
/* Linux wrapper to call common dhd_dev_pno_get_for_batch */
int
dhd_dev_pno_get_for_batch(struct net_device *dev, char *buf, int bufsize)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        return (dhd_pno_get_for_batch(&dhd->pub, buf, bufsize, PNO_STATUS_NORMAL));
}
#endif /* PNO_SUPPORT */

#if defined(PNO_SUPPORT)
#ifdef GSCAN_SUPPORT
bool
dhd_dev_is_legacy_pno_enabled(struct net_device *dev)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_is_legacy_pno_enabled(&dhd->pub));
}

int
dhd_dev_set_epno(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        if (!dhd) {
                return BCME_ERROR;
        }
        return dhd_pno_set_epno(&dhd->pub);
}
int
dhd_dev_flush_fw_epno(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        if (!dhd) {
                return BCME_ERROR;
        }
        return dhd_pno_flush_fw_epno(&dhd->pub);
}

/* Linux wrapper to call common dhd_pno_set_cfg_gscan */
int
dhd_dev_pno_set_cfg_gscan(struct net_device *dev, dhd_pno_gscan_cmd_cfg_t type,
 void *buf, bool flush)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_pno_set_cfg_gscan(&dhd->pub, type, buf, flush));
}

/* Linux wrapper to call common dhd_wait_batch_results_complete */
int
dhd_dev_wait_batch_results_complete(struct net_device *dev)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_wait_batch_results_complete(&dhd->pub));
}

/* Linux wrapper to call common dhd_pno_lock_batch_results */
int
dhd_dev_pno_lock_access_batch_results(struct net_device *dev)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_pno_lock_batch_results(&dhd->pub));
}
/* Linux wrapper to call common dhd_pno_unlock_batch_results */
void
dhd_dev_pno_unlock_access_batch_results(struct net_device *dev)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_pno_unlock_batch_results(&dhd->pub));
}

/* Linux wrapper to call common dhd_pno_initiate_gscan_request */
int
dhd_dev_pno_run_gscan(struct net_device *dev, bool run, bool flush)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_pno_initiate_gscan_request(&dhd->pub, run, flush));
}

/* Linux wrapper to call common dhd_pno_enable_full_scan_result */
int
dhd_dev_pno_enable_full_scan_result(struct net_device *dev, bool real_time_flag)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_pno_enable_full_scan_result(&dhd->pub, real_time_flag));
}

/* Linux wrapper to call common dhd_handle_hotlist_scan_evt */
void *
dhd_dev_hotlist_scan_event(struct net_device *dev,
      const void  *data, int *send_evt_bytes, hotlist_type_t type, u32 *buf_len)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_handle_hotlist_scan_evt(&dhd->pub, data, send_evt_bytes, type, buf_len));
}

/* Linux wrapper to call common dhd_process_full_gscan_result */
void *
dhd_dev_process_full_gscan_result(struct net_device *dev,
const void  *data, uint32 len, int *send_evt_bytes)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_process_full_gscan_result(&dhd->pub, data, len, send_evt_bytes));
}

void
dhd_dev_gscan_hotlist_cache_cleanup(struct net_device *dev, hotlist_type_t type)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        dhd_gscan_hotlist_cache_cleanup(&dhd->pub, type);

        return;
}

int
dhd_dev_gscan_batch_cache_cleanup(struct net_device *dev)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_gscan_batch_cache_cleanup(&dhd->pub));
}

/* Linux wrapper to call common dhd_retreive_batch_scan_results */
int
dhd_dev_retrieve_batch_scan(struct net_device *dev)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_retreive_batch_scan_results(&dhd->pub));
}
/* Linux wrapper to call common dhd_pno_process_epno_result */
void * dhd_dev_process_epno_result(struct net_device *dev,
        const void  *data, uint32 event, int *send_evt_bytes)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_pno_process_epno_result(&dhd->pub, data, event, send_evt_bytes));
}

int
dhd_dev_set_lazy_roam_cfg(struct net_device *dev,
             wlc_roam_exp_params_t *roam_param)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
        wl_roam_exp_cfg_t roam_exp_cfg;
        int err;

        if (!roam_param) {
                return BCME_BADARG;
        }

        DHD_INFO(("a_band_boost_thr %d a_band_penalty_thr %d\n",
              roam_param->a_band_boost_threshold, roam_param->a_band_penalty_threshold));
        DHD_INFO(("a_band_boost_factor %d a_band_penalty_factor %d cur_bssid_boost %d\n",
              roam_param->a_band_boost_factor, roam_param->a_band_penalty_factor,
              roam_param->cur_bssid_boost));
        DHD_INFO(("alert_roam_trigger_thr %d a_band_max_boost %d\n",
              roam_param->alert_roam_trigger_threshold, roam_param->a_band_max_boost));

        memcpy(&roam_exp_cfg.params, roam_param, sizeof(*roam_param));
        roam_exp_cfg.version = ROAM_EXP_CFG_VERSION;
        roam_exp_cfg.flags = ROAM_EXP_CFG_PRESENT;
        if (dhd->pub.lazy_roam_enable) {
                roam_exp_cfg.flags |= ROAM_EXP_ENABLE_FLAG;
        }
        err = dhd_iovar(&dhd->pub, 0, "roam_exp_params",
                        (char *)&roam_exp_cfg, sizeof(roam_exp_cfg), NULL, 0,
                        TRUE);
        if (err < 0) {
                DHD_ERROR(("%s : Failed to execute roam_exp_params %d\n", __FUNCTION__, err));
        }
        return err;
}

int
dhd_dev_lazy_roam_enable(struct net_device *dev, uint32 enable)
{
        int err;
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
        wl_roam_exp_cfg_t roam_exp_cfg;

        memset(&roam_exp_cfg, 0, sizeof(roam_exp_cfg));
        roam_exp_cfg.version = ROAM_EXP_CFG_VERSION;
        if (enable) {
                roam_exp_cfg.flags = ROAM_EXP_ENABLE_FLAG;
        }

        err = dhd_iovar(&dhd->pub, 0, "roam_exp_params",
                        (char *)&roam_exp_cfg, sizeof(roam_exp_cfg), NULL, 0,
                        TRUE);
        if (err < 0) {
                DHD_ERROR(("%s : Failed to execute roam_exp_params %d\n", __FUNCTION__, err));
        } else {
                dhd->pub.lazy_roam_enable = (enable != 0);
        }
        return err;
}
int
dhd_dev_set_lazy_roam_bssid_pref(struct net_device *dev,
       wl_bssid_pref_cfg_t *bssid_pref, uint32 flush)
{
        int err;
        uint len;
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        bssid_pref->version = BSSID_PREF_LIST_VERSION;
        /* By default programming bssid pref flushes out old values */
        bssid_pref->flags = (flush && !bssid_pref->count) ? ROAM_EXP_CLEAR_BSSID_PREF: 0;
        len = sizeof(wl_bssid_pref_cfg_t);
        if (bssid_pref->count) {
                len += (bssid_pref->count - 1) * sizeof(wl_bssid_pref_list_t);
        }
        err = dhd_iovar(&dhd->pub, 0, "roam_exp_bssid_pref",
                        (char *)bssid_pref, len, NULL, 0, TRUE);
        if (err != BCME_OK) {
                DHD_ERROR(("%s : Failed to execute roam_exp_bssid_pref %d\n", __FUNCTION__, err));
        }
        return err;
}
#endif /* GSCAN_SUPPORT */
#if defined(GSCAN_SUPPORT) || defined(ROAMEXP_SUPPORT)
int
dhd_dev_set_blacklist_bssid(struct net_device *dev, maclist_t *blacklist,
    uint32 len, uint32 flush)
{
        int err;
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
        int macmode;

        if (blacklist) {
                err = dhd_wl_ioctl_cmd(&(dhd->pub), WLC_SET_MACLIST, (char *)blacklist,
                                len, TRUE, 0);
                if (err != BCME_OK) {
                        DHD_ERROR(("%s : WLC_SET_MACLIST failed %d\n", __FUNCTION__, err));
                        return err;
                }
        }
        /* By default programming blacklist flushes out old values */
        macmode = (flush && !blacklist) ? WLC_MACMODE_DISABLED : WLC_MACMODE_DENY;
        err = dhd_wl_ioctl_cmd(&(dhd->pub), WLC_SET_MACMODE, (char *)&macmode,
                      sizeof(macmode), TRUE, 0);
        if (err != BCME_OK) {
                DHD_ERROR(("%s : WLC_SET_MACMODE failed %d\n", __FUNCTION__, err));
        }
        return err;
}
int
dhd_dev_set_whitelist_ssid(struct net_device *dev, wl_ssid_whitelist_t *ssid_whitelist,
    uint32 len, uint32 flush)
{
        int err;
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
        wl_ssid_whitelist_t whitelist_ssid_flush;

        if (!ssid_whitelist) {
                if (flush) {
                        ssid_whitelist = &whitelist_ssid_flush;
                        ssid_whitelist->ssid_count = 0;
                } else {
                        DHD_ERROR(("%s : Nothing to do here\n", __FUNCTION__));
                        return BCME_BADARG;
                }
        }
        ssid_whitelist->version = SSID_WHITELIST_VERSION;
        ssid_whitelist->flags = flush ? ROAM_EXP_CLEAR_SSID_WHITELIST : 0;
        err = dhd_iovar(&dhd->pub, 0, "roam_exp_ssid_whitelist", (char *)ssid_whitelist, len, NULL,
                        0, TRUE);
        if (err != BCME_OK) {
                DHD_ERROR(("%s : Failed to execute roam_exp_bssid_pref %d\n", __FUNCTION__, err));
        }
        return err;
}
#endif /* GSCAN_SUPPORT || ROAMEXP_SUPPORT */
#if defined(GSCAN_SUPPORT) || defined(DHD_GET_VALID_CHANNELS)
/* Linux wrapper to call common dhd_pno_get_gscan */
void *
dhd_dev_pno_get_gscan(struct net_device *dev, dhd_pno_gscan_cmd_cfg_t type,
                      void *info, uint32 *len)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_pno_get_gscan(&dhd->pub, type, info, len));
}
#endif /* GSCAN_SUPPORT || DHD_GET_VALID_CHANNELS */
#endif // endif

#ifdef RSSI_MONITOR_SUPPORT
int
dhd_dev_set_rssi_monitor_cfg(struct net_device *dev, int start,
             int8 max_rssi, int8 min_rssi)
{
        int err;
        wl_rssi_monitor_cfg_t rssi_monitor;
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        rssi_monitor.version = RSSI_MONITOR_VERSION;
        rssi_monitor.max_rssi = max_rssi;
        rssi_monitor.min_rssi = min_rssi;
        rssi_monitor.flags = start ? 0: RSSI_MONITOR_STOP;
        err = dhd_iovar(&dhd->pub, 0, "rssi_monitor", (char *)&rssi_monitor, sizeof(rssi_monitor),
                        NULL, 0, TRUE);
        if (err < 0 && err != BCME_UNSUPPORTED) {
                DHD_ERROR(("%s : Failed to execute rssi_monitor %d\n", __FUNCTION__, err));
        }
        return err;
}
#endif /* RSSI_MONITOR_SUPPORT */

#ifdef DHDTCPACK_SUPPRESS
int
dhd_dev_set_tcpack_sup_mode_cfg(struct net_device *dev, uint8 enable)
{
        int err;
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        err = dhd_tcpack_suppress_set(&dhd->pub, enable);
        if (err != BCME_OK) {
                DHD_ERROR(("%s : Failed to set tcpack_suppress mode: %d\n", __FUNCTION__, err));
        }
        return err;
}
#endif /* DHDTCPACK_SUPPRESS */

int
dhd_dev_cfg_rand_mac_oui(struct net_device *dev, uint8 *oui)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
        dhd_pub_t *dhdp = &dhd->pub;

        if (!dhdp || !oui) {
                DHD_ERROR(("NULL POINTER : %s\n",
                        __FUNCTION__));
                return BCME_ERROR;
        }
        if (ETHER_ISMULTI(oui)) {
                DHD_ERROR(("Expected unicast OUI\n"));
                return BCME_ERROR;
        } else {
                uint8 *rand_mac_oui = dhdp->rand_mac_oui;
                memcpy(rand_mac_oui, oui, DOT11_OUI_LEN);
                DHD_ERROR(("Random MAC OUI to be used - "MACOUIDBG"\n",
                        MACOUI2STRDBG(rand_mac_oui)));
        }
        return BCME_OK;
}

int
dhd_set_rand_mac_oui(dhd_pub_t *dhd)
{
        int err;
        wl_pfn_macaddr_cfg_t wl_cfg;
        uint8 *rand_mac_oui = dhd->rand_mac_oui;

        memset(&wl_cfg.macaddr, 0, ETHER_ADDR_LEN);
        memcpy(&wl_cfg.macaddr, rand_mac_oui, DOT11_OUI_LEN);
        wl_cfg.version = WL_PFN_MACADDR_CFG_VER;
        if (ETHER_ISNULLADDR(&wl_cfg.macaddr)) {
                wl_cfg.flags = 0;
        } else {
                wl_cfg.flags = (WL_PFN_MAC_OUI_ONLY_MASK | WL_PFN_SET_MAC_UNASSOC_MASK);
        }

        DHD_ERROR(("Setting rand mac oui to FW - "MACOUIDBG"\n",
                MACOUI2STRDBG(rand_mac_oui)));

        err = dhd_iovar(dhd, 0, "pfn_macaddr", (char *)&wl_cfg, sizeof(wl_cfg), NULL, 0, TRUE);
        if (err < 0) {
                DHD_ERROR(("%s : failed to execute pfn_macaddr %d\n", __FUNCTION__, err));
        }
        return err;
}

#ifdef RTT_SUPPORT
/* Linux wrapper to call common dhd_pno_set_cfg_gscan */
int
dhd_dev_rtt_set_cfg(struct net_device *dev, void *buf)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_rtt_set_cfg(&dhd->pub, buf));
}

int
dhd_dev_rtt_cancel_cfg(struct net_device *dev, struct ether_addr *mac_list, int mac_cnt)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_rtt_stop(&dhd->pub, mac_list, mac_cnt));
}

int
dhd_dev_rtt_register_noti_callback(struct net_device *dev, void *ctx, dhd_rtt_compl_noti_fn noti_fn)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_rtt_register_noti_callback(&dhd->pub, ctx, noti_fn));
}

int
dhd_dev_rtt_unregister_noti_callback(struct net_device *dev, dhd_rtt_compl_noti_fn noti_fn)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_rtt_unregister_noti_callback(&dhd->pub, noti_fn));
}

int
dhd_dev_rtt_capability(struct net_device *dev, rtt_capabilities_t *capa)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

        return (dhd_rtt_capability(&dhd->pub, capa));
}

int
dhd_dev_rtt_avail_channel(struct net_device *dev, wifi_channel_info *channel_info)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
        return (dhd_rtt_avail_channel(&dhd->pub, channel_info));
}

int
dhd_dev_rtt_enable_responder(struct net_device *dev, wifi_channel_info *channel_info)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
        return (dhd_rtt_enable_responder(&dhd->pub, channel_info));
}

int dhd_dev_rtt_cancel_responder(struct net_device *dev)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
        return (dhd_rtt_cancel_responder(&dhd->pub));
}

#endif /* RTT_SUPPORT */

#ifdef KEEP_ALIVE
#define KA_TEMP_BUF_SIZE 512
#define KA_FRAME_SIZE 300

int
dhd_dev_start_mkeep_alive(dhd_pub_t *dhd_pub, uint8 mkeep_alive_id, uint8 *ip_pkt,
        uint16 ip_pkt_len, uint8* src_mac, uint8* dst_mac, uint32 period_msec)
{
        const int               ETHERTYPE_LEN = 2;
        char                    *pbuf = NULL;
        const char              *str;
        wl_mkeep_alive_pkt_t    mkeep_alive_pkt;
        wl_mkeep_alive_pkt_t    *mkeep_alive_pktp = NULL;
        int                     buf_len = 0;
        int                     str_len = 0;
        int                     res = BCME_ERROR;
        int                     len_bytes = 0;
        int                     i = 0;

        /* ether frame to have both max IP pkt (256 bytes) and ether header */
        char                    *pmac_frame = NULL;
        char                    *pmac_frame_begin = NULL;

        /*
         * The mkeep_alive packet is for STA interface only; if the bss is configured as AP,
         * dongle shall reject a mkeep_alive request.
         */
        if (!dhd_support_sta_mode(dhd_pub))
                return res;

        DHD_TRACE(("%s execution\n", __FUNCTION__));

        if ((pbuf = MALLOCZ(dhd_pub->osh, KA_TEMP_BUF_SIZE)) == NULL) {
                DHD_ERROR(("failed to allocate buf with size %d\n", KA_TEMP_BUF_SIZE));
                res = BCME_NOMEM;
                return res;
        }

        if ((pmac_frame = MALLOCZ(dhd_pub->osh, KA_FRAME_SIZE)) == NULL) {
                DHD_ERROR(("failed to allocate mac_frame with size %d\n", KA_FRAME_SIZE));
                res = BCME_NOMEM;
                goto exit;
        }
        pmac_frame_begin = pmac_frame;

        /*
         * Get current mkeep-alive status.
         */
        res = dhd_iovar(dhd_pub, 0, "mkeep_alive", &mkeep_alive_id, sizeof(mkeep_alive_id), pbuf,
                        KA_TEMP_BUF_SIZE, FALSE);
        if (res < 0) {
                DHD_ERROR(("%s: Get mkeep_alive failed (error=%d)\n", __FUNCTION__, res));
                goto exit;
        } else {
                /* Check available ID whether it is occupied */
                mkeep_alive_pktp = (wl_mkeep_alive_pkt_t *) pbuf;
                if (dtoh32(mkeep_alive_pktp->period_msec != 0)) {
                        DHD_ERROR(("%s: Get mkeep_alive failed, ID %u is in use.\n",
                                __FUNCTION__, mkeep_alive_id));

                        /* Current occupied ID info */
                        DHD_ERROR(("%s: mkeep_alive\n", __FUNCTION__));
                        DHD_ERROR(("   Id    : %d\n"
                                "   Period: %d msec\n"
                                "   Length: %d\n"
                                "   Packet: 0x",
                                mkeep_alive_pktp->keep_alive_id,
                                dtoh32(mkeep_alive_pktp->period_msec),
                                dtoh16(mkeep_alive_pktp->len_bytes)));

                        for (i = 0; i < mkeep_alive_pktp->len_bytes; i++) {
                                DHD_ERROR(("%02x", mkeep_alive_pktp->data[i]));
                        }
                        DHD_ERROR(("\n"));

                        res = BCME_NOTFOUND;
                        goto exit;
                }
        }

        /* Request the specified ID */
        memset(&mkeep_alive_pkt, 0, sizeof(wl_mkeep_alive_pkt_t));
        memset(pbuf, 0, KA_TEMP_BUF_SIZE);
        str = "mkeep_alive";
        str_len = strlen(str);
        strncpy(pbuf, str, str_len);
        pbuf[str_len] = '\0';

        mkeep_alive_pktp = (wl_mkeep_alive_pkt_t *) (pbuf + str_len + 1);
        mkeep_alive_pkt.period_msec = htod32(period_msec);
        buf_len = str_len + 1;
        mkeep_alive_pkt.version = htod16(WL_MKEEP_ALIVE_VERSION);
        mkeep_alive_pkt.length = htod16(WL_MKEEP_ALIVE_FIXED_LEN);

        /* ID assigned */
        mkeep_alive_pkt.keep_alive_id = mkeep_alive_id;

        buf_len += WL_MKEEP_ALIVE_FIXED_LEN;

        /*
         * Build up Ethernet Frame
         */

        /* Mapping dest mac addr */
        memcpy(pmac_frame, dst_mac, ETHER_ADDR_LEN);
        pmac_frame += ETHER_ADDR_LEN;

        /* Mapping src mac addr */
        memcpy(pmac_frame, src_mac, ETHER_ADDR_LEN);
        pmac_frame += ETHER_ADDR_LEN;

        /* Mapping Ethernet type (ETHERTYPE_IP: 0x0800) */
        *(pmac_frame++) = 0x08;
        *(pmac_frame++) = 0x00;

        /* Mapping IP pkt */
        memcpy(pmac_frame, ip_pkt, ip_pkt_len);
        pmac_frame += ip_pkt_len;

        /*
         * Length of ether frame (assume to be all hexa bytes)
         *     = src mac + dst mac + ether type + ip pkt len
         */
        len_bytes = ETHER_ADDR_LEN*2 + ETHERTYPE_LEN + ip_pkt_len;
        memcpy(mkeep_alive_pktp->data, pmac_frame_begin, len_bytes);
        buf_len += len_bytes;
        mkeep_alive_pkt.len_bytes = htod16(len_bytes);

        /*
         * Keep-alive attributes are set in local variable (mkeep_alive_pkt), and
         * then memcpy'ed into buffer (mkeep_alive_pktp) since there is no
         * guarantee that the buffer is properly aligned.
         */
        memcpy((char *)mkeep_alive_pktp, &mkeep_alive_pkt, WL_MKEEP_ALIVE_FIXED_LEN);

        res = dhd_wl_ioctl_cmd(dhd_pub, WLC_SET_VAR, pbuf, buf_len, TRUE, 0);
exit:
        if (pmac_frame_begin) {
                MFREE(dhd_pub->osh, pmac_frame_begin, KA_FRAME_SIZE);
                pmac_frame_begin = NULL;
        }
        if (pbuf) {
                MFREE(dhd_pub->osh, pbuf, KA_TEMP_BUF_SIZE);
                pbuf = NULL;
        }
        return res;
}

int
dhd_dev_stop_mkeep_alive(dhd_pub_t *dhd_pub, uint8 mkeep_alive_id)
{
        char                    *pbuf = NULL;
        wl_mkeep_alive_pkt_t    mkeep_alive_pkt;
        wl_mkeep_alive_pkt_t    *mkeep_alive_pktp = NULL;
        int                     res = BCME_ERROR;
        int                     i = 0;

        /*
         * The mkeep_alive packet is for STA interface only; if the bss is configured as AP,
         * dongle shall reject a mkeep_alive request.
         */
        if (!dhd_support_sta_mode(dhd_pub))
                return res;

        DHD_TRACE(("%s execution\n", __FUNCTION__));

        /*
         * Get current mkeep-alive status. Skip ID 0 which is being used for NULL pkt.
         */
        if ((pbuf = MALLOC(dhd_pub->osh, KA_TEMP_BUF_SIZE)) == NULL) {
                DHD_ERROR(("failed to allocate buf with size %d\n", KA_TEMP_BUF_SIZE));
                return res;
        }

        res = dhd_iovar(dhd_pub, 0, "mkeep_alive", &mkeep_alive_id,
                        sizeof(mkeep_alive_id), pbuf, KA_TEMP_BUF_SIZE, FALSE);
        if (res < 0) {
                DHD_ERROR(("%s: Get mkeep_alive failed (error=%d)\n", __FUNCTION__, res));
                goto exit;
        } else {
                /* Check occupied ID */
                mkeep_alive_pktp = (wl_mkeep_alive_pkt_t *) pbuf;
                DHD_INFO(("%s: mkeep_alive\n", __FUNCTION__));
                DHD_INFO(("   Id    : %d\n"
                        "   Period: %d msec\n"
                        "   Length: %d\n"
                        "   Packet: 0x",
                        mkeep_alive_pktp->keep_alive_id,
                        dtoh32(mkeep_alive_pktp->period_msec),
                        dtoh16(mkeep_alive_pktp->len_bytes)));

                for (i = 0; i < mkeep_alive_pktp->len_bytes; i++) {
                        DHD_INFO(("%02x", mkeep_alive_pktp->data[i]));
                }
                DHD_INFO(("\n"));
        }

        /* Make it stop if available */
        if (dtoh32(mkeep_alive_pktp->period_msec != 0)) {
                DHD_INFO(("stop mkeep_alive on ID %d\n", mkeep_alive_id));
                memset(&mkeep_alive_pkt, 0, sizeof(wl_mkeep_alive_pkt_t));

                mkeep_alive_pkt.period_msec = 0;
                mkeep_alive_pkt.version = htod16(WL_MKEEP_ALIVE_VERSION);
                mkeep_alive_pkt.length = htod16(WL_MKEEP_ALIVE_FIXED_LEN);
                mkeep_alive_pkt.keep_alive_id = mkeep_alive_id;

                res = dhd_iovar(dhd_pub, 0, "mkeep_alive",
                                (char *)&mkeep_alive_pkt,
                                WL_MKEEP_ALIVE_FIXED_LEN, NULL, 0, TRUE);
        } else {
                DHD_ERROR(("%s: ID %u does not exist.\n", __FUNCTION__, mkeep_alive_id));
                res = BCME_NOTFOUND;
        }
exit:
        if (pbuf) {
                MFREE(dhd_pub->osh, pbuf, KA_TEMP_BUF_SIZE);
                pbuf = NULL;
        }
        return res;
}
#endif /* KEEP_ALIVE */

#if defined(PKT_FILTER_SUPPORT) && defined(APF)
static void _dhd_apf_lock_local(dhd_info_t *dhd)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
        if (dhd) {
                mutex_lock(&dhd->dhd_apf_mutex);
        }
#endif // endif
}

static void _dhd_apf_unlock_local(dhd_info_t *dhd)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
        if (dhd) {
                mutex_unlock(&dhd->dhd_apf_mutex);
        }
#endif // endif
}

static int
__dhd_apf_add_filter(struct net_device *ndev, uint32 filter_id,
        u8* program, uint32 program_len)
{
        dhd_info_t *dhd = DHD_DEV_INFO(ndev);
        dhd_pub_t *dhdp = &dhd->pub;
        wl_pkt_filter_t * pkt_filterp;
        wl_apf_program_t *apf_program;
        char *buf;
        u32 cmd_len, buf_len;
        int ifidx, ret;
        char cmd[] = "pkt_filter_add";

        ifidx = dhd_net2idx(dhd, ndev);
        if (ifidx == DHD_BAD_IF) {
                DHD_ERROR(("%s: bad ifidx\n", __FUNCTION__));
                return -ENODEV;
        }

        cmd_len = sizeof(cmd);

        /* Check if the program_len is more than the expected len
         * and if the program is NULL return from here.
         */
        if ((program_len > WL_APF_PROGRAM_MAX_SIZE) || (program == NULL)) {
                DHD_ERROR(("%s Invalid program_len: %d, program: %pK\n",
                                __FUNCTION__, program_len, program));
                return -EINVAL;
        }
        buf_len = cmd_len + WL_PKT_FILTER_FIXED_LEN +
                WL_APF_PROGRAM_FIXED_LEN + program_len;

        buf = MALLOCZ(dhdp->osh, buf_len);
        if (unlikely(!buf)) {
                DHD_ERROR(("%s: MALLOC failure, %d bytes\n", __FUNCTION__, buf_len));
                return -ENOMEM;
        }

        memcpy(buf, cmd, cmd_len);

        pkt_filterp = (wl_pkt_filter_t *) (buf + cmd_len);
        pkt_filterp->id = htod32(filter_id);
        pkt_filterp->negate_match = htod32(FALSE);
        pkt_filterp->type = htod32(WL_PKT_FILTER_TYPE_APF_MATCH);

        apf_program = &pkt_filterp->u.apf_program;
        apf_program->version = htod16(WL_APF_INTERNAL_VERSION);
        apf_program->instr_len = htod16(program_len);
        memcpy(apf_program->instrs, program, program_len);

        ret = dhd_wl_ioctl_cmd(dhdp, WLC_SET_VAR, buf, buf_len, TRUE, ifidx);
        if (unlikely(ret)) {
                DHD_ERROR(("%s: failed to add APF filter, id=%d, ret=%d\n",
                        __FUNCTION__, filter_id, ret));
        }

        if (buf) {
                MFREE(dhdp->osh, buf, buf_len);
        }
        return ret;
}

static int
__dhd_apf_config_filter(struct net_device *ndev, uint32 filter_id,
        uint32 mode, uint32 enable)
{
        dhd_info_t *dhd = DHD_DEV_INFO(ndev);
        dhd_pub_t *dhdp = &dhd->pub;
        wl_pkt_filter_enable_t * pkt_filterp;
        char *buf;
        u32 cmd_len, buf_len;
        int ifidx, ret;
        char cmd[] = "pkt_filter_enable";

        ifidx = dhd_net2idx(dhd, ndev);
        if (ifidx == DHD_BAD_IF) {
                DHD_ERROR(("%s: bad ifidx\n", __FUNCTION__));
                return -ENODEV;
        }

        cmd_len = sizeof(cmd);
        buf_len = cmd_len + sizeof(*pkt_filterp);

        buf = MALLOCZ(dhdp->osh, buf_len);
        if (unlikely(!buf)) {
                DHD_ERROR(("%s: MALLOC failure, %d bytes\n", __FUNCTION__, buf_len));
                return -ENOMEM;
        }

        memcpy(buf, cmd, cmd_len);

        pkt_filterp = (wl_pkt_filter_enable_t *) (buf + cmd_len);
        pkt_filterp->id = htod32(filter_id);
        pkt_filterp->enable = htod32(enable);

        ret = dhd_wl_ioctl_cmd(dhdp, WLC_SET_VAR, buf, buf_len, TRUE, ifidx);
        if (unlikely(ret)) {
                DHD_ERROR(("%s: failed to enable APF filter, id=%d, ret=%d\n",
                        __FUNCTION__, filter_id, ret));
                goto exit;
        }

        ret = dhd_wl_ioctl_set_intiovar(dhdp, "pkt_filter_mode", dhd_master_mode,
                WLC_SET_VAR, TRUE, ifidx);
        if (unlikely(ret)) {
                DHD_ERROR(("%s: failed to set APF filter mode, id=%d, ret=%d\n",
                        __FUNCTION__, filter_id, ret));
        }

exit:
        if (buf) {
                MFREE(dhdp->osh, buf, buf_len);
        }
        return ret;
}

static int
__dhd_apf_delete_filter(struct net_device *ndev, uint32 filter_id)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(ndev);
        dhd_pub_t *dhdp = &dhd->pub;
        int ifidx, ret;

        ifidx = dhd_net2idx(dhd, ndev);
        if (ifidx == DHD_BAD_IF) {
                DHD_ERROR(("%s: bad ifidx\n", __FUNCTION__));
                return -ENODEV;
        }

        ret = dhd_wl_ioctl_set_intiovar(dhdp, "pkt_filter_delete",
                htod32(filter_id), WLC_SET_VAR, TRUE, ifidx);
        if (unlikely(ret)) {
                DHD_ERROR(("%s: failed to delete APF filter, id=%d, ret=%d\n",
                        __FUNCTION__, filter_id, ret));
        }

        return ret;
}

void dhd_apf_lock(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        _dhd_apf_lock_local(dhd);
}

void dhd_apf_unlock(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        _dhd_apf_unlock_local(dhd);
}

int
dhd_dev_apf_get_version(struct net_device *ndev, uint32 *version)
{
        dhd_info_t *dhd = DHD_DEV_INFO(ndev);
        dhd_pub_t *dhdp = &dhd->pub;
        int ifidx, ret;

        if (!FW_SUPPORTED(dhdp, apf)) {
                DHD_ERROR(("%s: firmware doesn't support APF\n", __FUNCTION__));

                /*
                 * Notify Android framework that APF is not supported by setting
                 * version as zero.
                 */
                *version = 0;
                return BCME_OK;
        }

        ifidx = dhd_net2idx(dhd, ndev);
        if (ifidx == DHD_BAD_IF) {
                DHD_ERROR(("%s: bad ifidx\n", __FUNCTION__));
                return -ENODEV;
        }

        ret = dhd_wl_ioctl_get_intiovar(dhdp, "apf_ver", version,
                WLC_GET_VAR, FALSE, ifidx);
        if (unlikely(ret)) {
                DHD_ERROR(("%s: failed to get APF version, ret=%d\n",
                        __FUNCTION__, ret));
        }

        return ret;
}

int
dhd_dev_apf_get_max_len(struct net_device *ndev, uint32 *max_len)
{
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(ndev);
        dhd_pub_t *dhdp = &dhd->pub;
        int ifidx, ret;

        if (!FW_SUPPORTED(dhdp, apf)) {
                DHD_ERROR(("%s: firmware doesn't support APF\n", __FUNCTION__));
                *max_len = 0;
                return BCME_OK;
        }

        ifidx = dhd_net2idx(dhd, ndev);
        if (ifidx == DHD_BAD_IF) {
                DHD_ERROR(("%s bad ifidx\n", __FUNCTION__));
                return -ENODEV;
        }

        ret = dhd_wl_ioctl_get_intiovar(dhdp, "apf_size_limit", max_len,
                WLC_GET_VAR, FALSE, ifidx);
        if (unlikely(ret)) {
                DHD_ERROR(("%s: failed to get APF size limit, ret=%d\n",
                        __FUNCTION__, ret));
        }

        return ret;
}

int
dhd_dev_apf_add_filter(struct net_device *ndev, u8* program,
        uint32 program_len)
{
        dhd_info_t *dhd = DHD_DEV_INFO(ndev);
        dhd_pub_t *dhdp = &dhd->pub;
        int ret;

        DHD_APF_LOCK(ndev);

        /* delete, if filter already exists */
        if (dhdp->apf_set) {
                ret = __dhd_apf_delete_filter(ndev, PKT_FILTER_APF_ID);
                if (unlikely(ret)) {
                        goto exit;
                }
                dhdp->apf_set = FALSE;
        }

        ret = __dhd_apf_add_filter(ndev, PKT_FILTER_APF_ID, program, program_len);
        if (ret) {
                goto exit;
        }
        dhdp->apf_set = TRUE;

        if (dhdp->in_suspend && dhdp->apf_set && !(dhdp->op_mode & DHD_FLAG_HOSTAP_MODE)) {
                /* Driver is still in (early) suspend state, enable APF filter back */
                ret = __dhd_apf_config_filter(ndev, PKT_FILTER_APF_ID,
                        PKT_FILTER_MODE_FORWARD_ON_MATCH, TRUE);
        }
exit:
        DHD_APF_UNLOCK(ndev);

        return ret;
}

int
dhd_dev_apf_enable_filter(struct net_device *ndev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(ndev);
        dhd_pub_t *dhdp = &dhd->pub;
        int ret = 0;
        bool nan_dp_active = false;

        DHD_APF_LOCK(ndev);
#ifdef WL_NAN
        nan_dp_active = wl_cfgnan_is_dp_active(ndev);
#endif /* WL_NAN */
        if (dhdp->apf_set && (!(dhdp->op_mode & DHD_FLAG_HOSTAP_MODE) &&
                !nan_dp_active)) {
                ret = __dhd_apf_config_filter(ndev, PKT_FILTER_APF_ID,
                        PKT_FILTER_MODE_FORWARD_ON_MATCH, TRUE);
        }

        DHD_APF_UNLOCK(ndev);

        return ret;
}

int
dhd_dev_apf_disable_filter(struct net_device *ndev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(ndev);
        dhd_pub_t *dhdp = &dhd->pub;
        int ret = 0;

        DHD_APF_LOCK(ndev);

        if (dhdp->apf_set) {
                ret = __dhd_apf_config_filter(ndev, PKT_FILTER_APF_ID,
                        PKT_FILTER_MODE_FORWARD_ON_MATCH, FALSE);
        }

        DHD_APF_UNLOCK(ndev);

        return ret;
}

int
dhd_dev_apf_delete_filter(struct net_device *ndev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(ndev);
        dhd_pub_t *dhdp = &dhd->pub;
        int ret = 0;

        DHD_APF_LOCK(ndev);

        if (dhdp->apf_set) {
                ret = __dhd_apf_delete_filter(ndev, PKT_FILTER_APF_ID);
                if (!ret) {
                        dhdp->apf_set = FALSE;
                }
        }

        DHD_APF_UNLOCK(ndev);

        return ret;
}
#endif /* PKT_FILTER_SUPPORT && APF */

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
static void dhd_hang_process(struct work_struct *work_data)
{
        struct net_device *dev;
#ifdef IFACE_HANG_FORCE_DEV_CLOSE
        struct net_device *ndev;
        uint8 i = 0;
#endif /* IFACE_HANG_FORCE_DEV_CLOSE */
/* Ignore compiler warnings due to -Werror=cast-qual */
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif // endif
        struct dhd_info *dhd =
                container_of(work_data, dhd_info_t, dhd_hang_process_work);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif // endif

        dev = dhd->iflist[0]->net;

        if (dev) {
#if defined(WL_WIRELESS_EXT)
                wl_iw_send_priv_event(dev, "HANG");
#endif // endif
#if defined(WL_CFG80211)
                wl_cfg80211_hang(dev, WLAN_REASON_UNSPECIFIED);
#endif // endif
        }
#ifdef IFACE_HANG_FORCE_DEV_CLOSE
        /*
         * For HW2, dev_close need to be done to recover
         * from upper layer after hang. For Interposer skip
         * dev_close so that dhd iovars can be used to take
         * socramdump after crash, also skip for HW4 as
         * handling of hang event is different
         */

        rtnl_lock();
        for (i = 0; i < DHD_MAX_IFS; i++) {
                ndev = dhd->iflist[i] ? dhd->iflist[i]->net : NULL;
                if (ndev && (ndev->flags & IFF_UP)) {
                        DHD_ERROR(("ndev->name : %s dev close\n",
                                        ndev->name));
                        dev_close(ndev);
                }
        }
        rtnl_unlock();
#endif /* IFACE_HANG_FORCE_DEV_CLOSE */
}

#ifdef EXYNOS_PCIE_LINKDOWN_RECOVERY
extern dhd_pub_t *link_recovery;
void dhd_host_recover_link(void)
{
        DHD_ERROR(("****** %s ******\n", __FUNCTION__));
        link_recovery->hang_reason = HANG_REASON_PCIE_LINK_DOWN;
        dhd_bus_set_linkdown(link_recovery, TRUE);
        dhd_os_send_hang_message(link_recovery);
}
EXPORT_SYMBOL(dhd_host_recover_link);
#endif /* EXYNOS_PCIE_LINKDOWN_RECOVERY */

int dhd_os_send_hang_message(dhd_pub_t *dhdp)
{
        int ret = 0;

        if (dhdp) {
#ifdef WL_CFG80211
                struct net_device *primary_ndev;
                struct bcm_cfg80211 *cfg;

                primary_ndev = dhd_linux_get_primary_netdev(dhdp);
                if (!primary_ndev) {
                        DHD_ERROR(("%s: Cannot find primary netdev\n",
                                __FUNCTION__));
                        return -ENODEV;
                }

                cfg = wl_get_cfg(primary_ndev);
                if (!cfg) {
                        DHD_ERROR(("%s: Cannot find cfg\n", __FUNCTION__));
                        return -EINVAL;
                }

                /* Skip sending HANG event to framework if driver is not ready */
                if (!wl_get_drv_status(cfg, READY, primary_ndev)) {
                        DHD_ERROR(("%s: device is not ready\n", __FUNCTION__));
                        return -ENODEV;
                }
#endif /* WL_CFG80211 */

#if defined(DHD_HANG_SEND_UP_TEST)
                if (dhdp->req_hang_type) {
                        DHD_ERROR(("%s, Clear HANG test request 0x%x\n",
                                __FUNCTION__, dhdp->req_hang_type));
                        dhdp->req_hang_type = 0;
                }
#endif /* DHD_HANG_SEND_UP_TEST */

                if (!dhdp->hang_was_sent) {
#if defined(CONFIG_BCM_DETECT_CONSECUTIVE_HANG)
                        dhdp->hang_counts++;
                        if (dhdp->hang_counts >= MAX_CONSECUTIVE_HANG_COUNTS) {
                                DHD_ERROR(("%s, Consecutive hang from Dongle :%u\n",
                                        __func__, dhdp->hang_counts));
                                BUG_ON(1);
                        }
#endif /* CONFIG_BCM_DETECT_CONSECUTIVE_HANG */
#ifdef DHD_DEBUG_UART
                        /* If PCIe lane has broken, execute the debug uart application
                         * to gether a ramdump data from dongle via uart
                         */
                        if (!dhdp->info->duart_execute) {
                                dhd_deferred_schedule_work(dhdp->info->dhd_deferred_wq,
                                        (void *)dhdp, DHD_WQ_WORK_DEBUG_UART_DUMP,
                                        dhd_debug_uart_exec_rd, DHD_WQ_WORK_PRIORITY_HIGH);
                        }
#endif  /* DHD_DEBUG_UART */
                        dhdp->hang_was_sent = 1;
#ifdef BT_OVER_SDIO
                        dhdp->is_bt_recovery_required = TRUE;
#endif // endif
                        schedule_work(&dhdp->info->dhd_hang_process_work);

                }
        }
        return ret;
}

int net_os_send_hang_message(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        int ret = 0;

        if (dhd) {
                /* Report FW problem when enabled */
                if (dhd->pub.hang_report) {
#ifdef BT_OVER_SDIO
                        if (netif_running(dev)) {
#endif /* BT_OVER_SDIO */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
                                ret = dhd_os_send_hang_message(&dhd->pub);
#else
                                ret = wl_cfg80211_hang(dev, WLAN_REASON_UNSPECIFIED);
#endif // endif
#ifdef BT_OVER_SDIO
                        }
                        DHD_ERROR(("%s: HANG -> Reset BT\n", __FUNCTION__));
                        bcmsdh_btsdio_process_dhd_hang_notification(!netif_running(dev));
#endif /* BT_OVER_SDIO */
                } else {
                        DHD_ERROR(("%s: FW HANG ignored (for testing purpose) and not sent up\n",
                                __FUNCTION__));
                }
        }
        return ret;
}

int net_os_send_hang_message_reason(struct net_device *dev, const char *string_num)
{
        dhd_info_t *dhd = NULL;
        dhd_pub_t *dhdp = NULL;
        int reason;

        dhd = DHD_DEV_INFO(dev);
        if (dhd) {
                dhdp = &dhd->pub;
        }

        if (!dhd || !dhdp) {
                return 0;
        }

        reason = bcm_strtoul(string_num, NULL, 0);
        DHD_INFO(("%s: Enter, reason=0x%x\n", __FUNCTION__, reason));

        if ((reason <= HANG_REASON_MASK) || (reason >= HANG_REASON_MAX)) {
                reason = 0;
        }

        dhdp->hang_reason = reason;

        return net_os_send_hang_message(dev);
}
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) && OEM_ANDROID */

int dhd_net_wifi_platform_set_power(struct net_device *dev, bool on, unsigned long delay_msec)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        return wifi_platform_set_power(dhd->adapter, on, delay_msec);
}

bool dhd_force_country_change(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);

        if (dhd && dhd->pub.up)
                return dhd->pub.force_country_change;
        return FALSE;
}

void dhd_get_customized_country_code(struct net_device *dev, char *country_iso_code,
        wl_country_t *cspec)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        dhd_pub_t *dhdp = &dhd->pub;

        BCM_REFERENCE(dhdp);
        if (!CHECK_IS_BLOB(dhdp) || CHECK_IS_MULT_REGREV(dhdp)) {
#if defined(CUSTOM_COUNTRY_CODE)
                get_customized_country_code(dhd->adapter, country_iso_code, cspec,
                        dhd->pub.dhd_cflags);
#else
                get_customized_country_code(dhd->adapter, country_iso_code, cspec);
#endif /* CUSTOM_COUNTRY_CODE */
        }
#if !defined(CUSTOM_COUNTRY_CODE)
        else {
                /* Replace the ccode to XZ if ccode is undefined country */
                if (strncmp(country_iso_code, "", WLC_CNTRY_BUF_SZ) == 0) {
                        strlcpy(country_iso_code, "XZ", WLC_CNTRY_BUF_SZ);
                        strlcpy(cspec->country_abbrev, country_iso_code, WLC_CNTRY_BUF_SZ);
                        strlcpy(cspec->ccode, country_iso_code, WLC_CNTRY_BUF_SZ);
                        DHD_ERROR(("%s: ccode change to %s\n", __FUNCTION__, country_iso_code));
                }
        }
#endif /* !CUSTOM_COUNTRY_CODE */

#if defined(KEEP_KR_REGREV)
        if (strncmp(country_iso_code, "KR", 3) == 0) {
                if (!CHECK_IS_BLOB(dhdp) || CHECK_IS_MULT_REGREV(dhdp)) {
                        if (strncmp(dhd->pub.vars_ccode, "KR", 3) == 0) {
                                cspec->rev = dhd->pub.vars_regrev;
                        }
                }
        }
#endif /* KEEP_KR_REGREV */

#ifdef KEEP_JP_REGREV
        if (strncmp(country_iso_code, "JP", 3) == 0) {
                if (CHECK_IS_BLOB(dhdp) && !CHECK_IS_MULT_REGREV(dhdp)) {
                        if (strncmp(dhd->pub.vars_ccode, "J1", 3) == 0) {
                                memcpy(cspec->ccode, dhd->pub.vars_ccode,
                                        sizeof(dhd->pub.vars_ccode));
                        }
                } else {
                        if (strncmp(dhd->pub.vars_ccode, "JP", 3) == 0) {
                                cspec->rev = dhd->pub.vars_regrev;
                        }
                }
        }
#endif /* KEEP_JP_REGREV */
        BCM_REFERENCE(dhd);
}
void dhd_bus_country_set(struct net_device *dev, wl_country_t *cspec, bool notify)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
#ifdef WL_CFG80211
        struct bcm_cfg80211 *cfg = wl_get_cfg(dev);
#endif // endif

        if (dhd && dhd->pub.up) {
                memcpy(&dhd->pub.dhd_cspec, cspec, sizeof(wl_country_t));
#ifdef DHD_DISABLE_VHTMODE
                dhd_disable_vhtmode(&dhd->pub);
#endif /* DHD_DISABLE_VHTMODE */

#ifdef WL_CFG80211
                wl_update_wiphybands(cfg, notify);
#endif // endif
        }
}

#ifdef DHD_DISABLE_VHTMODE
void
dhd_disable_vhtmode(dhd_pub_t *dhd)
{
        int ret = 0;
        uint32 vhtmode = FALSE;
        char buf[32];

        /* Get vhtmode */
        ret = dhd_iovar(dhd, 0, "vhtmode", NULL, 0, (char *)&buf, sizeof(buf), FALSE);
        if (ret < 0) {
                DHD_ERROR(("%s Get vhtmode Fail ret %d\n", __FUNCTION__, ret));
                return;
        }
        memcpy(&vhtmode, buf, sizeof(uint32));
        if (vhtmode == 0) {
                DHD_ERROR(("%s Get vhtmode is 0\n", __FUNCTION__));
                return;
        }
        vhtmode = FALSE;

        /* Set vhtmode */
        ret = dhd_iovar(dhd, 0, "vhtmode", (char *)&vhtmode, sizeof(vhtmode), NULL, 0, TRUE);
        if (ret == 0) {
                DHD_ERROR(("%s Set vhtmode Success %d\n", __FUNCTION__, vhtmode));
        } else {
                if (ret == BCME_NOTDOWN) {
                        uint wl_down = 1;
                        ret = dhd_wl_ioctl_cmd(dhd, WLC_DOWN,
                                (char *)&wl_down, sizeof(wl_down), TRUE, 0);
                        if (ret) {
                                DHD_ERROR(("%s WL_DOWN Fail ret %d\n", __FUNCTION__, ret));
                                return;
                        }

                        ret = dhd_iovar(dhd, 0, "vhtmode", (char *)&vhtmode,
                                sizeof(vhtmode), NULL, 0, TRUE);
                        DHD_ERROR(("%s Set vhtmode %d, ret %d\n", __FUNCTION__, vhtmode, ret));

                        ret = dhd_wl_ioctl_cmd(dhd, WLC_UP,
                                (char *)&wl_down, sizeof(wl_down), TRUE, 0);
                        if (ret) {
                                DHD_ERROR(("%s WL_UP Fail ret %d\n", __FUNCTION__, ret));
                        }
                } else {
                        DHD_ERROR(("%s Set vhtmode 0 failed  %d\n", __FUNCTION__, ret));
                }
        }
}
#endif /* DHD_DISABLE_VHTMODE */

void dhd_bus_band_set(struct net_device *dev, uint band)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
#ifdef WL_CFG80211
        struct bcm_cfg80211 *cfg = wl_get_cfg(dev);
#endif // endif
        if (dhd && dhd->pub.up) {
#ifdef WL_CFG80211
                wl_update_wiphybands(cfg, true);
#endif // endif
        }
}

int dhd_net_set_fw_path(struct net_device *dev, char *fw)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);

        if (!fw || fw[0] == '\0')
                return -EINVAL;

        strncpy(dhd->fw_path, fw, sizeof(dhd->fw_path) - 1);
        dhd->fw_path[sizeof(dhd->fw_path)-1] = '\0';

#if defined(SOFTAP)
        if (strstr(fw, "apsta") != NULL) {
                DHD_INFO(("GOT APSTA FIRMWARE\n"));
                ap_fw_loaded = TRUE;
        } else {
                DHD_INFO(("GOT STA FIRMWARE\n"));
                ap_fw_loaded = FALSE;
        }
#endif // endif
        return 0;
}

void dhd_net_if_lock(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        dhd_net_if_lock_local(dhd);
}

void dhd_net_if_unlock(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        dhd_net_if_unlock_local(dhd);
}

static void dhd_net_if_lock_local(dhd_info_t *dhd)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
        if (dhd)
                mutex_lock(&dhd->dhd_net_if_mutex);
#endif // endif
}

static void dhd_net_if_unlock_local(dhd_info_t *dhd)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
        if (dhd)
                mutex_unlock(&dhd->dhd_net_if_mutex);
#endif // endif
}

static void dhd_suspend_lock(dhd_pub_t *pub)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        if (dhd)
                mutex_lock(&dhd->dhd_suspend_mutex);
#endif // endif
}

static void dhd_suspend_unlock(dhd_pub_t *pub)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        if (dhd)
                mutex_unlock(&dhd->dhd_suspend_mutex);
#endif // endif
}

unsigned long dhd_os_general_spin_lock(dhd_pub_t *pub)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        unsigned long flags = 0;

        if (dhd)
                spin_lock_irqsave(&dhd->dhd_lock, flags);

        return flags;
}

void dhd_os_general_spin_unlock(dhd_pub_t *pub, unsigned long flags)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);

        if (dhd)
                spin_unlock_irqrestore(&dhd->dhd_lock, flags);
}

/* Linux specific multipurpose spinlock API */
void *
dhd_os_spin_lock_init(osl_t *osh)
{
        /* Adding 4 bytes since the sizeof(spinlock_t) could be 0 */
        /* if CONFIG_SMP and CONFIG_DEBUG_SPINLOCK are not defined */
        /* and this results in kernel asserts in internal builds */
        spinlock_t * lock = MALLOC(osh, sizeof(spinlock_t) + 4);
        if (lock)
                spin_lock_init(lock);
        return ((void *)lock);
}
void
dhd_os_spin_lock_deinit(osl_t *osh, void *lock)
{
        if (lock)
                MFREE(osh, lock, sizeof(spinlock_t) + 4);
}
unsigned long
dhd_os_spin_lock(void *lock)
{
        unsigned long flags = 0;

        if (lock)
                spin_lock_irqsave((spinlock_t *)lock, flags);

        return flags;
}
void
dhd_os_spin_unlock(void *lock, unsigned long flags)
{
        if (lock)
                spin_unlock_irqrestore((spinlock_t *)lock, flags);
}

void *
dhd_os_dbgring_lock_init(osl_t *osh)
{
        struct mutex *mtx = NULL;

        mtx = MALLOCZ(osh, sizeof(*mtx));
        if (mtx)
                mutex_init(mtx);

        return mtx;
}

void
dhd_os_dbgring_lock_deinit(osl_t *osh, void *mtx)
{
        if (mtx) {
                mutex_destroy(mtx);
                MFREE(osh, mtx, sizeof(struct mutex));
        }
}

static int
dhd_get_pend_8021x_cnt(dhd_info_t *dhd)
{
        return (atomic_read(&dhd->pend_8021x_cnt));
}

#define MAX_WAIT_FOR_8021X_TX   100

int
dhd_wait_pend8021x(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        int timeout = msecs_to_jiffies(10);
        int ntimes = MAX_WAIT_FOR_8021X_TX;
        int pend = dhd_get_pend_8021x_cnt(dhd);

        while (ntimes && pend) {
                if (pend) {
                        set_current_state(TASK_INTERRUPTIBLE);
                        DHD_PERIM_UNLOCK(&dhd->pub);
                        schedule_timeout(timeout);
                        DHD_PERIM_LOCK(&dhd->pub);
                        set_current_state(TASK_RUNNING);
                        ntimes--;
                }
                pend = dhd_get_pend_8021x_cnt(dhd);
        }
        if (ntimes == 0)
        {
                atomic_set(&dhd->pend_8021x_cnt, 0);
                DHD_ERROR(("%s: TIMEOUT\n", __FUNCTION__));
        }
        return pend;
}

#if defined(DHD_DEBUG)
int write_file(const char * file_name, uint32 flags, uint8 *buf, int size)
{
        int ret = 0;
        struct file *fp = NULL;
        mm_segment_t old_fs;
        loff_t pos = 0;
        /* change to KERNEL_DS address limit */
        old_fs = get_fs();
        set_fs(KERNEL_DS);

        /* open file to write */
        fp = filp_open(file_name, flags, 0664);
        if (IS_ERR(fp)) {
                DHD_ERROR(("open file error, err = %ld\n", PTR_ERR(fp)));
                goto exit;
        }

        /* Write buf to file */
        ret = vfs_write(fp, buf, size, &pos);
        if (ret < 0) {
                DHD_ERROR(("write file error, err = %d\n", ret));
                goto exit;
        }

        /* Sync file from filesystem to physical media */
        ret = vfs_fsync(fp, 0);
        if (ret < 0) {
                DHD_ERROR(("sync file error, error = %d\n", ret));
                goto exit;
        }
        ret = BCME_OK;

exit:
        /* close file before return */
        if (!IS_ERR(fp))
                filp_close(fp, current->files);

        /* restore previous address limit */
        set_fs(old_fs);

        return ret;
}
#endif // endif

#ifdef DHD_DEBUG
static void
dhd_convert_memdump_type_to_str(uint32 type, char *buf, int substr_type)
{
        char *type_str = NULL;

        switch (type) {
                case DUMP_TYPE_RESUMED_ON_TIMEOUT:
                        type_str = "resumed_on_timeout";
                        break;
                case DUMP_TYPE_D3_ACK_TIMEOUT:
                        type_str = "D3_ACK_timeout";
                        break;
                case DUMP_TYPE_DONGLE_TRAP:
                        type_str = "Dongle_Trap";
                        break;
                case DUMP_TYPE_MEMORY_CORRUPTION:
                        type_str = "Memory_Corruption";
                        break;
                case DUMP_TYPE_PKTID_AUDIT_FAILURE:
                        type_str = "PKTID_AUDIT_Fail";
                        break;
                case DUMP_TYPE_PKTID_INVALID:
                        type_str = "PKTID_INVALID";
                        break;
                case DUMP_TYPE_SCAN_TIMEOUT:
                        type_str = "SCAN_timeout";
                        break;
                case DUMP_TYPE_SCAN_BUSY:
                        type_str = "SCAN_Busy";
                        break;
                case DUMP_TYPE_BY_SYSDUMP:
                        if (substr_type == CMD_UNWANTED) {
                                type_str = "BY_SYSDUMP_FORUSER_unwanted";
                        } else if (substr_type == CMD_DISCONNECTED) {
                                type_str = "BY_SYSDUMP_FORUSER_disconnected";
                        } else {
                                type_str = "BY_SYSDUMP_FORUSER";
                        }
                        break;
                case DUMP_TYPE_BY_LIVELOCK:
                        type_str = "BY_LIVELOCK";
                        break;
                case DUMP_TYPE_AP_LINKUP_FAILURE:
                        type_str = "BY_AP_LINK_FAILURE";
                        break;
                case DUMP_TYPE_AP_ABNORMAL_ACCESS:
                        type_str = "INVALID_ACCESS";
                        break;
                case DUMP_TYPE_RESUMED_ON_TIMEOUT_RX:
                        type_str = "ERROR_RX_TIMED_OUT";
                        break;
                case DUMP_TYPE_RESUMED_ON_TIMEOUT_TX:
                        type_str = "ERROR_TX_TIMED_OUT";
                        break;
                case DUMP_TYPE_CFG_VENDOR_TRIGGERED:
                        type_str = "CFG_VENDOR_TRIGGERED";
                        break;
                case DUMP_TYPE_RESUMED_ON_INVALID_RING_RDWR:
                        type_str = "BY_INVALID_RING_RDWR";
                        break;
                case DUMP_TYPE_IFACE_OP_FAILURE:
                        type_str = "BY_IFACE_OP_FAILURE";
                        break;
                case DUMP_TYPE_TRANS_ID_MISMATCH:
                        type_str = "BY_TRANS_ID_MISMATCH";
                        break;
#ifdef DEBUG_DNGL_INIT_FAIL
                case DUMP_TYPE_DONGLE_INIT_FAILURE:
                        type_str = "DONGLE_INIT_FAIL";
                        break;
#endif /* DEBUG_DNGL_INIT_FAIL */
#ifdef SUPPORT_LINKDOWN_RECOVERY
                case DUMP_TYPE_READ_SHM_FAIL:
                        type_str = "READ_SHM_FAIL";
                        break;
#endif /* SUPPORT_LINKDOWN_RECOVERY */
                case DUMP_TYPE_DONGLE_HOST_EVENT:
                        type_str = "BY_DONGLE_HOST_EVENT";
                        break;
                case DUMP_TYPE_SMMU_FAULT:
                        type_str = "SMMU_FAULT";
                        break;
                case DUMP_TYPE_BY_USER:
                        type_str = "BY_USER";
                        break;
#ifdef DHD_ERPOM
                case DUMP_TYPE_DUE_TO_BT:
                        type_str = "DUE_TO_BT";
                        break;
#endif /* DHD_ERPOM */
                case DUMP_TYPE_LOGSET_BEYOND_RANGE:
                        type_str = "LOGSET_BEYOND_RANGE";
                        break;
                case DUMP_TYPE_CTO_RECOVERY:
                        type_str = "CTO_RECOVERY";
                        break;
                case DUMP_TYPE_SEQUENTIAL_PRIVCMD_ERROR:
                        type_str = "SEQUENTIAL_PRIVCMD_ERROR";
                        break;
                default:
                        type_str = "Unknown_type";
                        break;
        }

        strncpy(buf, type_str, strlen(type_str));
        buf[strlen(type_str)] = 0;
}

int
write_dump_to_file(dhd_pub_t *dhd, uint8 *buf, int size, char *fname)
{
        int ret = 0;
        char memdump_path[128];
        char memdump_type[32];
        struct timeval curtime;
        uint32 file_mode;

        /* Init file name */
        memset(memdump_path, 0, sizeof(memdump_path));
        memset(memdump_type, 0, sizeof(memdump_type));
        do_gettimeofday(&curtime);
        dhd_convert_memdump_type_to_str(dhd->memdump_type, memdump_type, dhd->debug_dump_subcmd);
#ifdef CUSTOMER_HW4_DEBUG
        get_debug_dump_time(dhd->debug_dump_time_str);
        snprintf(memdump_path, sizeof(memdump_path), "%s%s_%s_" "%s",
                        DHD_COMMON_DUMP_PATH, fname, memdump_type, dhd->debug_dump_time_str);
        file_mode = O_CREAT | O_WRONLY | O_SYNC;
#elif (defined(BOARD_PANDA) || defined(__ARM_ARCH_7A__))
        snprintf(memdump_path, sizeof(memdump_path), "%s%s_%s_%ld.%ld",
                "/data/misc/wifi/", fname, memdump_type,
                (unsigned long)curtime.tv_sec, (unsigned long)curtime.tv_usec);
        file_mode = O_CREAT | O_WRONLY;
#else
        snprintf(memdump_path, sizeof(memdump_path), "%s%s_%s_%ld.%ld",
                "/installmedia/", fname, memdump_type,
                (unsigned long)curtime.tv_sec, (unsigned long)curtime.tv_usec);
        /* Extra flags O_DIRECT and O_SYNC are required for Brix Android, as we are
         * calling BUG_ON immediately after collecting the socram dump.
         * So the file write operation should directly write the contents into the
         * file instead of caching it. O_TRUNC flag ensures that file will be re-written
         * instead of appending.
         */
        file_mode = O_CREAT | O_WRONLY | O_SYNC;
        {
                struct file *fp = filp_open(memdump_path, file_mode, 0664);
                /* Check if it is live Brix image having /installmedia, else use /data */
                if (IS_ERR(fp)) {
                        DHD_ERROR(("open file %s, try /data/\n", memdump_path));
                        snprintf(memdump_path, sizeof(memdump_path), "%s%s_%s_%ld.%ld",
                                "/data/", fname, memdump_type,
                                (unsigned long)curtime.tv_sec, (unsigned long)curtime.tv_usec);
                } else {
                        filp_close(fp, NULL);
                }
        }
#endif /* CUSTOMER_HW4_DEBUG */

        /* print SOCRAM dump file path */
        DHD_ERROR(("%s: file_path = %s\n", __FUNCTION__, memdump_path));

#ifdef DHD_LOG_DUMP
        dhd_print_buf_addr(dhd, "write_dump_to_file", buf, size);
#endif /* DHD_LOG_DUMP */

        /* Write file */
        ret = write_file(memdump_path, file_mode, buf, size);

#ifdef DHD_DUMP_MNGR
        if (ret == BCME_OK) {
                dhd_dump_file_manage_enqueue(dhd, memdump_path, fname);
        }
#endif /* DHD_DUMP_MNGR */

        return ret;
}
#endif /* DHD_DEBUG */

int dhd_os_wake_lock_timeout(dhd_pub_t *pub)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        unsigned long flags;
        int ret = 0;

        if (dhd && (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT)) {
                spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
                ret = dhd->wakelock_rx_timeout_enable > dhd->wakelock_ctrl_timeout_enable ?
                        dhd->wakelock_rx_timeout_enable : dhd->wakelock_ctrl_timeout_enable;
#ifdef CONFIG_HAS_WAKELOCK
                if (dhd->wakelock_rx_timeout_enable)
                        wake_lock_timeout(&dhd->wl_rxwake,
                                msecs_to_jiffies(dhd->wakelock_rx_timeout_enable));
                if (dhd->wakelock_ctrl_timeout_enable)
                        wake_lock_timeout(&dhd->wl_ctrlwake,
                                msecs_to_jiffies(dhd->wakelock_ctrl_timeout_enable));
#endif // endif
                dhd->wakelock_rx_timeout_enable = 0;
                dhd->wakelock_ctrl_timeout_enable = 0;
                spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
        }
        return ret;
}

int net_os_wake_lock_timeout(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        int ret = 0;

        if (dhd)
                ret = dhd_os_wake_lock_timeout(&dhd->pub);
        return ret;
}

int dhd_os_wake_lock_rx_timeout_enable(dhd_pub_t *pub, int val)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        unsigned long flags;

        if (dhd && (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT)) {
                spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
                if (val > dhd->wakelock_rx_timeout_enable)
                        dhd->wakelock_rx_timeout_enable = val;
                spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
        }
        return 0;
}

int dhd_os_wake_lock_ctrl_timeout_enable(dhd_pub_t *pub, int val)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        unsigned long flags;

        if (dhd && (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT)) {
                spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
                if (val > dhd->wakelock_ctrl_timeout_enable)
                        dhd->wakelock_ctrl_timeout_enable = val;
                spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
        }
        return 0;
}

int dhd_os_wake_lock_ctrl_timeout_cancel(dhd_pub_t *pub)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        unsigned long flags;

        if (dhd && (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT)) {
                spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
                dhd->wakelock_ctrl_timeout_enable = 0;
#ifdef CONFIG_HAS_WAKELOCK
                if (wake_lock_active(&dhd->wl_ctrlwake))
                        wake_unlock(&dhd->wl_ctrlwake);
#endif // endif
                spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
        }
        return 0;
}

int net_os_wake_lock_rx_timeout_enable(struct net_device *dev, int val)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        int ret = 0;

        if (dhd)
                ret = dhd_os_wake_lock_rx_timeout_enable(&dhd->pub, val);
        return ret;
}

int net_os_wake_lock_ctrl_timeout_enable(struct net_device *dev, int val)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        int ret = 0;

        if (dhd)
                ret = dhd_os_wake_lock_ctrl_timeout_enable(&dhd->pub, val);
        return ret;
}

#if defined(DHD_TRACE_WAKE_LOCK)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
#include <linux/hashtable.h>
#else
#include <linux/hash.h>
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0) */

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
/* Define 2^5 = 32 bucket size hash table */
DEFINE_HASHTABLE(wklock_history, 5);
#else
/* Define 2^5 = 32 bucket size hash table */
struct hlist_head wklock_history[32] = { [0 ... 31] = HLIST_HEAD_INIT };
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0) */

atomic_t trace_wklock_onoff;
typedef enum dhd_wklock_type {
        DHD_WAKE_LOCK,
        DHD_WAKE_UNLOCK,
        DHD_WAIVE_LOCK,
        DHD_RESTORE_LOCK
} dhd_wklock_t;

struct wk_trace_record {
        unsigned long addr;                 /* Address of the instruction */
        dhd_wklock_t lock_type;         /* lock_type */
        unsigned long long counter;             /* counter information */
        struct hlist_node wklock_node;  /* hash node */
};

static struct wk_trace_record *find_wklock_entry(unsigned long addr)
{
        struct wk_trace_record *wklock_info;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
        hash_for_each_possible(wklock_history, wklock_info, wklock_node, addr)
#else
        struct hlist_node *entry;
        int index = hash_long(addr, ilog2(ARRAY_SIZE(wklock_history)));
        hlist_for_each_entry(wklock_info, entry, &wklock_history[index], wklock_node)
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0) */
        {
                if (wklock_info->addr == addr) {
                        return wklock_info;
                }
        }
        return NULL;
}

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
#define HASH_ADD(hashtable, node, key) \
        do { \
                hash_add(hashtable, node, key); \
        } while (0);
#else
#define HASH_ADD(hashtable, node, key) \
        do { \
                int index = hash_long(key, ilog2(ARRAY_SIZE(hashtable))); \
                hlist_add_head(node, &hashtable[index]); \
        } while (0);
#endif /* KERNEL_VER < KERNEL_VERSION(3, 7, 0) */

#define STORE_WKLOCK_RECORD(wklock_type) \
        do { \
                struct wk_trace_record *wklock_info = NULL; \
                unsigned long func_addr = (unsigned long)__builtin_return_address(0); \
                wklock_info = find_wklock_entry(func_addr); \
                if (wklock_info) { \
                        if (wklock_type == DHD_WAIVE_LOCK || wklock_type == DHD_RESTORE_LOCK) { \
                                wklock_info->counter = dhd->wakelock_counter; \
                        } else { \
                                wklock_info->counter++; \
                        } \
                } else { \
                        wklock_info = kzalloc(sizeof(*wklock_info), GFP_ATOMIC); \
                        if (!wklock_info) {\
                                printk("Can't allocate wk_trace_record \n"); \
                        } else { \
                                wklock_info->addr = func_addr; \
                                wklock_info->lock_type = wklock_type; \
                                if (wklock_type == DHD_WAIVE_LOCK || \
                                                wklock_type == DHD_RESTORE_LOCK) { \
                                        wklock_info->counter = dhd->wakelock_counter; \
                                } else { \
                                        wklock_info->counter++; \
                                } \
                                HASH_ADD(wklock_history, &wklock_info->wklock_node, func_addr); \
                        } \
                } \
        } while (0);

static inline void dhd_wk_lock_rec_dump(void)
{
        int bkt;
        struct wk_trace_record *wklock_info;

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
        hash_for_each(wklock_history, bkt, wklock_info, wklock_node)
#else
        struct hlist_node *entry = NULL;
        int max_index = ARRAY_SIZE(wklock_history);
        for (bkt = 0; bkt < max_index; bkt++)
                hlist_for_each_entry(wklock_info, entry, &wklock_history[bkt], wklock_node)
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0) */
                {
                        switch (wklock_info->lock_type) {
                                case DHD_WAKE_LOCK:
                                        printk("wakelock lock : %pS  lock_counter : %llu \n",
                                                (void *)wklock_info->addr, wklock_info->counter);
                                        break;
                                case DHD_WAKE_UNLOCK:
                                        printk("wakelock unlock : %pS, unlock_counter : %llu \n",
                                                (void *)wklock_info->addr, wklock_info->counter);
                                        break;
                                case DHD_WAIVE_LOCK:
                                        printk("wakelock waive : %pS  before_waive : %llu \n",
                                                (void *)wklock_info->addr, wklock_info->counter);
                                        break;
                                case DHD_RESTORE_LOCK:
                                        printk("wakelock restore : %pS, after_waive : %llu \n",
                                                (void *)wklock_info->addr, wklock_info->counter);
                                        break;
                        }
                }
}

static void dhd_wk_lock_trace_init(struct dhd_info *dhd)
{
        unsigned long flags;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 7, 0))
        int i;
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0) */

        spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
        hash_init(wklock_history);
#else
        for (i = 0; i < ARRAY_SIZE(wklock_history); i++)
                INIT_HLIST_HEAD(&wklock_history[i]);
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0) */
        spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
        atomic_set(&trace_wklock_onoff, 1);
}

static void dhd_wk_lock_trace_deinit(struct dhd_info *dhd)
{
        int bkt;
        struct wk_trace_record *wklock_info;
        struct hlist_node *tmp;
        unsigned long flags;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 7, 0))
        struct hlist_node *entry = NULL;
        int max_index = ARRAY_SIZE(wklock_history);
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0) */

        spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
        hash_for_each_safe(wklock_history, bkt, tmp, wklock_info, wklock_node)
#else
        for (bkt = 0; bkt < max_index; bkt++)
                hlist_for_each_entry_safe(wklock_info, entry, tmp,
                        &wklock_history[bkt], wklock_node)
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0)) */
                {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
                        hash_del(&wklock_info->wklock_node);
#else
                        hlist_del_init(&wklock_info->wklock_node);
#endif /* KERNEL_VER >= KERNEL_VERSION(3, 7, 0)) */
                        kfree(wklock_info);
                }
        spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
}

void dhd_wk_lock_stats_dump(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd = (dhd_info_t *)(dhdp->info);
        unsigned long flags;

        printk(KERN_ERR"DHD Printing wl_wake Lock/Unlock Record \r\n");
        spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
        dhd_wk_lock_rec_dump();
        spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);

}
#else
#define STORE_WKLOCK_RECORD(wklock_type)
#endif /* ! DHD_TRACE_WAKE_LOCK */

int dhd_os_wake_lock(dhd_pub_t *pub)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        unsigned long flags;
        int ret = 0;

        if (dhd && (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT)) {
                spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
                if (dhd->wakelock_counter == 0 && !dhd->waive_wakelock) {
#ifdef CONFIG_HAS_WAKELOCK
                        wake_lock(&dhd->wl_wifi);
#elif defined(BCMSDIO) && (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 36))
                        dhd_bus_dev_pm_stay_awake(pub);
#endif // endif
                }
#ifdef DHD_TRACE_WAKE_LOCK
                if (atomic_read(&trace_wklock_onoff)) {
                        STORE_WKLOCK_RECORD(DHD_WAKE_LOCK);
                }
#endif /* DHD_TRACE_WAKE_LOCK */
                dhd->wakelock_counter++;
                ret = dhd->wakelock_counter;
                spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
        }

        return ret;
}

void dhd_event_wake_lock(dhd_pub_t *pub)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
#ifdef CONFIG_HAS_WAKELOCK
                wake_lock(&dhd->wl_evtwake);
#elif defined(BCMSDIO) && (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 36))
                dhd_bus_dev_pm_stay_awake(pub);
#endif // endif
        }
}

void
dhd_pm_wake_lock_timeout(dhd_pub_t *pub, int val)
{
#ifdef CONFIG_HAS_WAKELOCK
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
                wake_lock_timeout(&dhd->wl_pmwake, msecs_to_jiffies(val));
        }
#endif /* CONFIG_HAS_WAKE_LOCK */
}

void
dhd_txfl_wake_lock_timeout(dhd_pub_t *pub, int val)
{
#ifdef CONFIG_HAS_WAKELOCK
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
                wake_lock_timeout(&dhd->wl_txflwake, msecs_to_jiffies(val));
        }
#endif /* CONFIG_HAS_WAKE_LOCK */
}

int net_os_wake_lock(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        int ret = 0;

        if (dhd)
                ret = dhd_os_wake_lock(&dhd->pub);
        return ret;
}

int dhd_os_wake_unlock(dhd_pub_t *pub)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        unsigned long flags;
        int ret = 0;

        dhd_os_wake_lock_timeout(pub);
        if (dhd && (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT)) {
                spin_lock_irqsave(&dhd->wakelock_spinlock, flags);

                if (dhd->wakelock_counter > 0) {
                        dhd->wakelock_counter--;
#ifdef DHD_TRACE_WAKE_LOCK
                        if (atomic_read(&trace_wklock_onoff)) {
                                STORE_WKLOCK_RECORD(DHD_WAKE_UNLOCK);
                        }
#endif /* DHD_TRACE_WAKE_LOCK */
                        if (dhd->wakelock_counter == 0 && !dhd->waive_wakelock) {
#ifdef CONFIG_HAS_WAKELOCK
                                wake_unlock(&dhd->wl_wifi);
#elif defined(BCMSDIO) && (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 36))
                                dhd_bus_dev_pm_relax(pub);
#endif // endif
                        }
                        ret = dhd->wakelock_counter;
                }
                spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
        }
        return ret;
}

void dhd_event_wake_unlock(dhd_pub_t *pub)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
#ifdef CONFIG_HAS_WAKELOCK
                wake_unlock(&dhd->wl_evtwake);
#elif defined(BCMSDIO) && (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 36))
                dhd_bus_dev_pm_relax(pub);
#endif // endif
        }
}

void dhd_pm_wake_unlock(dhd_pub_t *pub)
{
#ifdef CONFIG_HAS_WAKELOCK
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
                /* if wl_pmwake is active, unlock it */
                if (wake_lock_active(&dhd->wl_pmwake)) {
                        wake_unlock(&dhd->wl_pmwake);
                }
        }
#endif /* CONFIG_HAS_WAKELOCK */
}

void dhd_txfl_wake_unlock(dhd_pub_t *pub)
{
#ifdef CONFIG_HAS_WAKELOCK
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
                /* if wl_txflwake is active, unlock it */
                if (wake_lock_active(&dhd->wl_txflwake)) {
                        wake_unlock(&dhd->wl_txflwake);
                }
        }
#endif /* CONFIG_HAS_WAKELOCK */
}

int dhd_os_check_wakelock(dhd_pub_t *pub)
{
#if defined(CONFIG_HAS_WAKELOCK) || (defined(BCMSDIO) && (LINUX_VERSION_CODE > \
        KERNEL_VERSION(2, 6, 36)))
        dhd_info_t *dhd;

        if (!pub)
                return 0;
        dhd = (dhd_info_t *)(pub->info);
#endif /* CONFIG_HAS_WAKELOCK || BCMSDIO */

#ifdef CONFIG_HAS_WAKELOCK
        /* Indicate to the SD Host to avoid going to suspend if internal locks are up */
        if (dhd && (wake_lock_active(&dhd->wl_wifi) ||
                (wake_lock_active(&dhd->wl_wdwake))))
                return 1;
#elif defined(BCMSDIO) && (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 36))
        if (dhd && (dhd->wakelock_counter > 0) && dhd_bus_dev_pm_enabled(pub))
                return 1;
#endif // endif
        return 0;
}

int
dhd_os_check_wakelock_all(dhd_pub_t *pub)
{
#if defined(CONFIG_HAS_WAKELOCK) || (defined(BCMSDIO) && (LINUX_VERSION_CODE > \
        KERNEL_VERSION(2, 6, 36)))
#if defined(CONFIG_HAS_WAKELOCK)
        int l1, l2, l3, l4, l7, l8, l9;
        int l5 = 0, l6 = 0;
        int c, lock_active;
#endif /* CONFIG_HAS_WAKELOCK */
        dhd_info_t *dhd;

        if (!pub) {
                return 0;
        }
        dhd = (dhd_info_t *)(pub->info);
        if (!dhd) {
                return 0;
        }
#endif /* CONFIG_HAS_WAKELOCK || BCMSDIO */

#ifdef CONFIG_HAS_WAKELOCK
        c = dhd->wakelock_counter;
        l1 = wake_lock_active(&dhd->wl_wifi);
        l2 = wake_lock_active(&dhd->wl_wdwake);
        l3 = wake_lock_active(&dhd->wl_rxwake);
        l4 = wake_lock_active(&dhd->wl_ctrlwake);
        l7 = wake_lock_active(&dhd->wl_evtwake);
#ifdef BCMPCIE_OOB_HOST_WAKE
        l5 = wake_lock_active(&dhd->wl_intrwake);
#endif /* BCMPCIE_OOB_HOST_WAKE */
#ifdef DHD_USE_SCAN_WAKELOCK
        l6 = wake_lock_active(&dhd->wl_scanwake);
#endif /* DHD_USE_SCAN_WAKELOCK */
        l8 = wake_lock_active(&dhd->wl_pmwake);
        l9 = wake_lock_active(&dhd->wl_txflwake);
        lock_active = (l1 || l2 || l3 || l4 || l5 || l6 || l7 || l8 || l9);

        /* Indicate to the Host to avoid going to suspend if internal locks are up */
        if (lock_active) {
                DHD_ERROR(("%s wakelock c-%d wl-%d wd-%d rx-%d "
                        "ctl-%d intr-%d scan-%d evt-%d, pm-%d, txfl-%d\n",
                        __FUNCTION__, c, l1, l2, l3, l4, l5, l6, l7, l8, l9));
                return 1;
        }
#elif defined(BCMSDIO) && (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 36))
        if (dhd && (dhd->wakelock_counter > 0) && dhd_bus_dev_pm_enabled(pub)) {
                return 1;
        }
#endif /* defined(BCMSDIO) && (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 36)) */
        return 0;
}

int net_os_wake_unlock(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        int ret = 0;

        if (dhd)
                ret = dhd_os_wake_unlock(&dhd->pub);
        return ret;
}

int dhd_os_wd_wake_lock(dhd_pub_t *pub)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        unsigned long flags;
        int ret = 0;

        if (dhd) {
                spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
                if (dhd->wakelock_wd_counter == 0 && !dhd->waive_wakelock) {
#ifdef CONFIG_HAS_WAKELOCK
                        /* if wakelock_wd_counter was never used : lock it at once */
                        wake_lock(&dhd->wl_wdwake);
#endif // endif
                }
                dhd->wakelock_wd_counter++;
                ret = dhd->wakelock_wd_counter;
                spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
        }
        return ret;
}

int dhd_os_wd_wake_unlock(dhd_pub_t *pub)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        unsigned long flags;
        int ret = 0;

        if (dhd) {
                spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
                if (dhd->wakelock_wd_counter > 0) {
                        dhd->wakelock_wd_counter = 0;
                        if (!dhd->waive_wakelock) {
#ifdef CONFIG_HAS_WAKELOCK
                                wake_unlock(&dhd->wl_wdwake);
#endif // endif
                        }
                }
                spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
        }
        return ret;
}

#ifdef BCMPCIE_OOB_HOST_WAKE
void
dhd_os_oob_irq_wake_lock_timeout(dhd_pub_t *pub, int val)
{
#ifdef CONFIG_HAS_WAKELOCK
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
                wake_lock_timeout(&dhd->wl_intrwake, msecs_to_jiffies(val));
        }
#endif /* CONFIG_HAS_WAKELOCK */
}

void
dhd_os_oob_irq_wake_unlock(dhd_pub_t *pub)
{
#ifdef CONFIG_HAS_WAKELOCK
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
                /* if wl_intrwake is active, unlock it */
                if (wake_lock_active(&dhd->wl_intrwake)) {
                        wake_unlock(&dhd->wl_intrwake);
                }
        }
#endif /* CONFIG_HAS_WAKELOCK */
}
#endif /* BCMPCIE_OOB_HOST_WAKE */

#ifdef DHD_USE_SCAN_WAKELOCK
void
dhd_os_scan_wake_lock_timeout(dhd_pub_t *pub, int val)
{
#ifdef CONFIG_HAS_WAKELOCK
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
                wake_lock_timeout(&dhd->wl_scanwake, msecs_to_jiffies(val));
        }
#endif /* CONFIG_HAS_WAKELOCK */
}

void
dhd_os_scan_wake_unlock(dhd_pub_t *pub)
{
#ifdef CONFIG_HAS_WAKELOCK
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);

        if (dhd) {
                /* if wl_scanwake is active, unlock it */
                if (wake_lock_active(&dhd->wl_scanwake)) {
                        wake_unlock(&dhd->wl_scanwake);
                }
        }
#endif /* CONFIG_HAS_WAKELOCK */
}
#endif /* DHD_USE_SCAN_WAKELOCK */

/* waive wakelocks for operations such as IOVARs in suspend function, must be closed
 * by a paired function call to dhd_wakelock_restore. returns current wakelock counter
 */
int dhd_os_wake_lock_waive(dhd_pub_t *pub)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        unsigned long flags;
        int ret = 0;

        if (dhd && (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT)) {
                spin_lock_irqsave(&dhd->wakelock_spinlock, flags);

                /* dhd_wakelock_waive/dhd_wakelock_restore must be paired */
                if (dhd->waive_wakelock == FALSE) {
#ifdef DHD_TRACE_WAKE_LOCK
                        if (atomic_read(&trace_wklock_onoff)) {
                                STORE_WKLOCK_RECORD(DHD_WAIVE_LOCK);
                        }
#endif /* DHD_TRACE_WAKE_LOCK */
                        /* record current lock status */
                        dhd->wakelock_before_waive = dhd->wakelock_counter;
                        dhd->waive_wakelock = TRUE;
                }
                ret = dhd->wakelock_wd_counter;
                spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
        }
        return ret;
}

int dhd_os_wake_lock_restore(dhd_pub_t *pub)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        unsigned long flags;
        int ret = 0;

        if (!dhd)
                return 0;
        if ((dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT) == 0)
                return 0;

        spin_lock_irqsave(&dhd->wakelock_spinlock, flags);

        /* dhd_wakelock_waive/dhd_wakelock_restore must be paired */
        if (!dhd->waive_wakelock)
                goto exit;

        dhd->waive_wakelock = FALSE;
        /* if somebody else acquires wakelock between dhd_wakelock_waive/dhd_wakelock_restore,
         * we need to make it up by calling wake_lock or pm_stay_awake. or if somebody releases
         * the lock in between, do the same by calling wake_unlock or pm_relax
         */
#ifdef DHD_TRACE_WAKE_LOCK
        if (atomic_read(&trace_wklock_onoff)) {
                STORE_WKLOCK_RECORD(DHD_RESTORE_LOCK);
        }
#endif /* DHD_TRACE_WAKE_LOCK */

        if (dhd->wakelock_before_waive == 0 && dhd->wakelock_counter > 0) {
#ifdef CONFIG_HAS_WAKELOCK
                wake_lock(&dhd->wl_wifi);
#elif defined(BCMSDIO) && (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 36))
                dhd_bus_dev_pm_stay_awake(&dhd->pub);
#endif // endif
        } else if (dhd->wakelock_before_waive > 0 && dhd->wakelock_counter == 0) {
#ifdef CONFIG_HAS_WAKELOCK
                wake_unlock(&dhd->wl_wifi);
#elif defined(BCMSDIO) && (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 36))
                dhd_bus_dev_pm_relax(&dhd->pub);
#endif // endif
        }
        dhd->wakelock_before_waive = 0;
exit:
        ret = dhd->wakelock_wd_counter;
        spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
        return ret;
}

void dhd_os_wake_lock_init(struct dhd_info *dhd)
{
        DHD_TRACE(("%s: initialize wake_lock_counters\n", __FUNCTION__));
        dhd->wakelock_counter = 0;
        dhd->wakelock_rx_timeout_enable = 0;
        dhd->wakelock_ctrl_timeout_enable = 0;
        /* wakelocks prevent a system from going into a low power state */
#ifdef CONFIG_HAS_WAKELOCK
        wake_lock_init(&dhd->wl_wifi, WAKE_LOCK_SUSPEND, "wlan_wake");
        wake_lock_init(&dhd->wl_rxwake, WAKE_LOCK_SUSPEND, "wlan_rx_wake");
        wake_lock_init(&dhd->wl_ctrlwake, WAKE_LOCK_SUSPEND, "wlan_ctrl_wake");
        wake_lock_init(&dhd->wl_evtwake, WAKE_LOCK_SUSPEND, "wlan_evt_wake");
        wake_lock_init(&dhd->wl_pmwake, WAKE_LOCK_SUSPEND, "wlan_pm_wake");
        wake_lock_init(&dhd->wl_txflwake, WAKE_LOCK_SUSPEND, "wlan_txfl_wake");
#ifdef BCMPCIE_OOB_HOST_WAKE
        wake_lock_init(&dhd->wl_intrwake, WAKE_LOCK_SUSPEND, "wlan_oob_irq_wake");
#endif /* BCMPCIE_OOB_HOST_WAKE */
#ifdef DHD_USE_SCAN_WAKELOCK
        wake_lock_init(&dhd->wl_scanwake, WAKE_LOCK_SUSPEND, "wlan_scan_wake");
#endif /* DHD_USE_SCAN_WAKELOCK */
#endif /* CONFIG_HAS_WAKELOCK */
#ifdef DHD_TRACE_WAKE_LOCK
        dhd_wk_lock_trace_init(dhd);
#endif /* DHD_TRACE_WAKE_LOCK */
}

void dhd_os_wake_lock_destroy(struct dhd_info *dhd)
{
        DHD_TRACE(("%s: deinit wake_lock_counters\n", __FUNCTION__));
#ifdef CONFIG_HAS_WAKELOCK
        dhd->wakelock_counter = 0;
        dhd->wakelock_rx_timeout_enable = 0;
        dhd->wakelock_ctrl_timeout_enable = 0;
        wake_lock_destroy(&dhd->wl_wifi);
        wake_lock_destroy(&dhd->wl_rxwake);
        wake_lock_destroy(&dhd->wl_ctrlwake);
        wake_lock_destroy(&dhd->wl_evtwake);
        wake_lock_destroy(&dhd->wl_pmwake);
        wake_lock_destroy(&dhd->wl_txflwake);
#ifdef BCMPCIE_OOB_HOST_WAKE
        wake_lock_destroy(&dhd->wl_intrwake);
#endif /* BCMPCIE_OOB_HOST_WAKE */
#ifdef DHD_USE_SCAN_WAKELOCK
        wake_lock_destroy(&dhd->wl_scanwake);
#endif /* DHD_USE_SCAN_WAKELOCK */
#ifdef DHD_TRACE_WAKE_LOCK
        dhd_wk_lock_trace_deinit(dhd);
#endif /* DHD_TRACE_WAKE_LOCK */
#endif /* CONFIG_HAS_WAKELOCK */
}

bool dhd_os_check_if_up(dhd_pub_t *pub)
{
        if (!pub)
                return FALSE;
        return pub->up;
}

#if defined(BCMSDIO) || defined(BCMPCIE)
/* function to collect firmware, chip id and chip version info */
void dhd_set_version_info(dhd_pub_t *dhdp, char *fw)
{
        int i;

        i = snprintf(info_string, sizeof(info_string),
                "  Driver: %s\n  Firmware: %s ", EPI_VERSION_STR, fw);

        if (!dhdp)
                return;

        i = snprintf(&info_string[i], sizeof(info_string) - i,
                "\n  Chip: %x Rev %x Pkg %x", dhd_bus_chip_id(dhdp),
                dhd_bus_chiprev_id(dhdp), dhd_bus_chippkg_id(dhdp));
}
#endif /* BCMSDIO || BCMPCIE */
int dhd_ioctl_entry_local(struct net_device *net, wl_ioctl_t *ioc, int cmd)
{
        int ifidx;
        int ret = 0;
        dhd_info_t *dhd = NULL;

        if (!net || !DEV_PRIV(net)) {
                DHD_ERROR(("%s invalid parameter net %p dev_priv %p\n",
                        __FUNCTION__, net, DEV_PRIV(net)));
                return -EINVAL;
        }

        dhd = DHD_DEV_INFO(net);
        if (!dhd)
                return -EINVAL;

        ifidx = dhd_net2idx(dhd, net);
        if (ifidx == DHD_BAD_IF) {
                DHD_ERROR(("%s bad ifidx\n", __FUNCTION__));
                return -ENODEV;
        }

        DHD_OS_WAKE_LOCK(&dhd->pub);
        DHD_PERIM_LOCK(&dhd->pub);

        ret = dhd_wl_ioctl(&dhd->pub, ifidx, ioc, ioc->buf, ioc->len);
        dhd_check_hang(net, &dhd->pub, ret);

        DHD_PERIM_UNLOCK(&dhd->pub);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);

        return ret;
}

bool dhd_os_check_hang(dhd_pub_t *dhdp, int ifidx, int ret)
{
        struct net_device *net;

        net = dhd_idx2net(dhdp, ifidx);
        if (!net) {
                DHD_ERROR(("%s : Invalid index : %d\n", __FUNCTION__, ifidx));
                return -EINVAL;
        }

        return dhd_check_hang(net, dhdp, ret);
}

/* Return instance */
int dhd_get_instance(dhd_pub_t *dhdp)
{
        return dhdp->info->unit;
}

#if defined(WL_CFG80211) && defined(SUPPORT_DEEP_SLEEP)
#define MAX_TRY_CNT             5 /* Number of tries to disable deepsleep */
int dhd_deepsleep(struct net_device *dev, int flag)
{
        char iovbuf[20];
        uint powervar = 0;
        dhd_info_t *dhd;
        dhd_pub_t *dhdp;
        int cnt = 0;
        int ret = 0;

        dhd = DHD_DEV_INFO(dev);
        dhdp = &dhd->pub;

        switch (flag) {
                case 1 :  /* Deepsleep on */
                        DHD_ERROR(("[WiFi] Deepsleep On\n"));
                        /* give some time to sysioc_work before deepsleep */
                        OSL_SLEEP(200);
#ifdef PKT_FILTER_SUPPORT
                /* disable pkt filter */
                dhd_enable_packet_filter(0, dhdp);
#endif /* PKT_FILTER_SUPPORT */
                        /* Disable MPC */
                        powervar = 0;
                        ret = dhd_iovar(dhdp, 0, "mpc", (char *)&powervar, sizeof(powervar), NULL,
                                        0, TRUE);

                        /* Enable Deepsleep */
                        powervar = 1;
                        ret = dhd_iovar(dhdp, 0, "deepsleep", (char *)&powervar, sizeof(powervar),
                                        NULL, 0, TRUE);
                        break;

                case 0: /* Deepsleep Off */
                        DHD_ERROR(("[WiFi] Deepsleep Off\n"));

                        /* Disable Deepsleep */
                        for (cnt = 0; cnt < MAX_TRY_CNT; cnt++) {
                                powervar = 0;
                                ret = dhd_iovar(dhdp, 0, "deepsleep", (char *)&powervar,
                                                sizeof(powervar), NULL, 0, TRUE);

                                ret = dhd_iovar(dhdp, 0, "deepsleep", (char *)&powervar,
                                                sizeof(powervar), iovbuf, sizeof(iovbuf), FALSE);
                                if (ret < 0) {
                                        DHD_ERROR(("the error of dhd deepsleep status"
                                                " ret value :%d\n", ret));
                                } else {
                                        if (!(*(int *)iovbuf)) {
                                                DHD_ERROR(("deepsleep mode is 0,"
                                                        " count: %d\n", cnt));
                                                break;
                                        }
                                }
                        }

                        /* Enable MPC */
                        powervar = 1;
                        ret = dhd_iovar(dhdp, 0, "mpc", (char *)&powervar, sizeof(powervar), NULL,
                                        0, TRUE);
                        break;
        }

        return 0;
}
#endif /* WL_CFG80211 && SUPPORT_DEEP_SLEEP */

#ifdef PROP_TXSTATUS

void dhd_wlfc_plat_init(void *dhd)
{
#ifdef USE_DYNAMIC_F2_BLKSIZE
        dhdsdio_func_blocksize((dhd_pub_t *)dhd, 2, DYNAMIC_F2_BLKSIZE_FOR_NONLEGACY);
#endif /* USE_DYNAMIC_F2_BLKSIZE */
        return;
}

void dhd_wlfc_plat_deinit(void *dhd)
{
#ifdef USE_DYNAMIC_F2_BLKSIZE
        dhdsdio_func_blocksize((dhd_pub_t *)dhd, 2, sd_f2_blocksize);
#endif /* USE_DYNAMIC_F2_BLKSIZE */
        return;
}

bool dhd_wlfc_skip_fc(void * dhdp, uint8 idx)
{
#ifdef SKIP_WLFC_ON_CONCURRENT

#ifdef WL_CFG80211
        struct net_device * net =  dhd_idx2net((dhd_pub_t *)dhdp, idx);
        if (net)
        /* enable flow control in vsdb mode */
        return !(wl_cfg80211_is_concurrent_mode(net));
#else
        return TRUE; /* skip flow control */
#endif /* WL_CFG80211 */

#else
        return FALSE;
#endif /* SKIP_WLFC_ON_CONCURRENT */
        return FALSE;
}
#endif /* PROP_TXSTATUS */

#ifdef BCMDBGFS
#include <linux/debugfs.h>

typedef struct dhd_dbgfs {
        struct dentry   *debugfs_dir;
        struct dentry   *debugfs_mem;
        dhd_pub_t       *dhdp;
        uint32          size;
} dhd_dbgfs_t;

dhd_dbgfs_t g_dbgfs;

extern uint32 dhd_readregl(void *bp, uint32 addr);
extern uint32 dhd_writeregl(void *bp, uint32 addr, uint32 data);

static int
dhd_dbg_state_open(struct inode *inode, struct file *file)
{
        file->private_data = inode->i_private;
        return 0;
}

static ssize_t
dhd_dbg_state_read(struct file *file, char __user *ubuf,
                       size_t count, loff_t *ppos)
{
        ssize_t rval;
        uint32 tmp;
        loff_t pos = *ppos;
        size_t ret;

        if (pos < 0)
                return -EINVAL;
        if (pos >= g_dbgfs.size || !count)
                return 0;
        if (count > g_dbgfs.size - pos)
                count = g_dbgfs.size - pos;

        /* Basically enforce aligned 4 byte reads. It's up to the user to work out the details */
        tmp = dhd_readregl(g_dbgfs.dhdp->bus, file->f_pos & (~3));

        ret = copy_to_user(ubuf, &tmp, 4);
        if (ret == count)
                return -EFAULT;

        count -= ret;
        *ppos = pos + count;
        rval = count;

        return rval;
}

static ssize_t
dhd_debugfs_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos)
{
        loff_t pos = *ppos;
        size_t ret;
        uint32 buf;

        if (pos < 0)
                return -EINVAL;
        if (pos >= g_dbgfs.size || !count)
                return 0;
        if (count > g_dbgfs.size - pos)
                count = g_dbgfs.size - pos;

        ret = copy_from_user(&buf, ubuf, sizeof(uint32));
        if (ret == count)
                return -EFAULT;

        /* Basically enforce aligned 4 byte writes. It's up to the user to work out the details */
        dhd_writeregl(g_dbgfs.dhdp->bus, file->f_pos & (~3), buf);

        return count;
}

loff_t
dhd_debugfs_lseek(struct file *file, loff_t off, int whence)
{
        loff_t pos = -1;

        switch (whence) {
                case 0:
                        pos = off;
                        break;
                case 1:
                        pos = file->f_pos + off;
                        break;
                case 2:
                        pos = g_dbgfs.size - off;
        }
        return (pos < 0 || pos > g_dbgfs.size) ? -EINVAL : (file->f_pos = pos);
}

static const struct file_operations dhd_dbg_state_ops = {
        .read   = dhd_dbg_state_read,
        .write  = dhd_debugfs_write,
        .open   = dhd_dbg_state_open,
        .llseek = dhd_debugfs_lseek
};

static void dhd_dbgfs_create(void)
{
        if (g_dbgfs.debugfs_dir) {
                g_dbgfs.debugfs_mem = debugfs_create_file("mem", 0644, g_dbgfs.debugfs_dir,
                        NULL, &dhd_dbg_state_ops);
        }
}

void dhd_dbgfs_init(dhd_pub_t *dhdp)
{
        g_dbgfs.dhdp = dhdp;
        g_dbgfs.size = 0x20000000; /* Allow access to various cores regs */

        g_dbgfs.debugfs_dir = debugfs_create_dir("dhd", 0);
        if (IS_ERR(g_dbgfs.debugfs_dir)) {
                g_dbgfs.debugfs_dir = NULL;
                return;
        }

        dhd_dbgfs_create();

        return;
}

void dhd_dbgfs_remove(void)
{
        debugfs_remove(g_dbgfs.debugfs_mem);
        debugfs_remove(g_dbgfs.debugfs_dir);

        bzero((unsigned char *) &g_dbgfs, sizeof(g_dbgfs));
}
#endif /* BCMDBGFS */

#ifdef CUSTOM_SET_CPUCORE
void dhd_set_cpucore(dhd_pub_t *dhd, int set)
{
        int e_dpc = 0, e_rxf = 0, retry_set = 0;

        if (!(dhd->chan_isvht80)) {
                DHD_ERROR(("%s: chan_status(%d) cpucore!!!\n", __FUNCTION__, dhd->chan_isvht80));
                return;
        }

        if (DPC_CPUCORE) {
                do {
                        if (set == TRUE) {
                                e_dpc = set_cpus_allowed_ptr(dhd->current_dpc,
                                        cpumask_of(DPC_CPUCORE));
                        } else {
                                e_dpc = set_cpus_allowed_ptr(dhd->current_dpc,
                                        cpumask_of(PRIMARY_CPUCORE));
                        }
                        if (retry_set++ > MAX_RETRY_SET_CPUCORE) {
                                DHD_ERROR(("%s: dpc(%d) invalid cpu!\n", __FUNCTION__, e_dpc));
                                return;
                        }
                        if (e_dpc < 0)
                                OSL_SLEEP(1);
                } while (e_dpc < 0);
        }
        if (RXF_CPUCORE) {
                do {
                        if (set == TRUE) {
                                e_rxf = set_cpus_allowed_ptr(dhd->current_rxf,
                                        cpumask_of(RXF_CPUCORE));
                        } else {
                                e_rxf = set_cpus_allowed_ptr(dhd->current_rxf,
                                        cpumask_of(PRIMARY_CPUCORE));
                        }
                        if (retry_set++ > MAX_RETRY_SET_CPUCORE) {
                                DHD_ERROR(("%s: rxf(%d) invalid cpu!\n", __FUNCTION__, e_rxf));
                                return;
                        }
                        if (e_rxf < 0)
                                OSL_SLEEP(1);
                } while (e_rxf < 0);
        }
#ifdef DHD_OF_SUPPORT
        interrupt_set_cpucore(set, DPC_CPUCORE, PRIMARY_CPUCORE);
#endif /* DHD_OF_SUPPORT */
        DHD_TRACE(("%s: set(%d) cpucore success!\n", __FUNCTION__, set));

        return;
}
#endif /* CUSTOM_SET_CPUCORE */

#ifdef DHD_MCAST_REGEN
/* Get interface specific ap_isolate configuration */
int dhd_get_mcast_regen_bss_enable(dhd_pub_t *dhdp, uint32 idx)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;

        ASSERT(idx < DHD_MAX_IFS);

        ifp = dhd->iflist[idx];

        return ifp->mcast_regen_bss_enable;
}

/* Set interface specific mcast_regen configuration */
int dhd_set_mcast_regen_bss_enable(dhd_pub_t *dhdp, uint32 idx, int val)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;

        ASSERT(idx < DHD_MAX_IFS);

        ifp = dhd->iflist[idx];

        ifp->mcast_regen_bss_enable = val;

        /* Disable rx_pkt_chain feature for interface, if mcast_regen feature
         * is enabled
         */
        dhd_update_rx_pkt_chainable_state(dhdp, idx);
        return BCME_OK;
}
#endif  /* DHD_MCAST_REGEN */

/* Get interface specific ap_isolate configuration */
int dhd_get_ap_isolate(dhd_pub_t *dhdp, uint32 idx)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;

        ASSERT(idx < DHD_MAX_IFS);

        ifp = dhd->iflist[idx];

        return ifp->ap_isolate;
}

/* Set interface specific ap_isolate configuration */
int dhd_set_ap_isolate(dhd_pub_t *dhdp, uint32 idx, int val)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;

        ASSERT(idx < DHD_MAX_IFS);

        ifp = dhd->iflist[idx];

        if (ifp)
                ifp->ap_isolate = val;

        return 0;
}

#ifdef DHD_FW_COREDUMP
void dhd_schedule_memdump(dhd_pub_t *dhdp, uint8 *buf, uint32 size)
{
        unsigned long flags = 0;
        dhd_dump_t *dump = NULL;
        dhd_info_t *dhd_info = NULL;
        dhd_info = (dhd_info_t *)dhdp->info;
        dump = (dhd_dump_t *)MALLOC(dhdp->osh, sizeof(dhd_dump_t));
        if (dump == NULL) {
                DHD_ERROR(("%s: dhd dump memory allocation failed\n", __FUNCTION__));
                return;
        }
        dump->buf = buf;
        dump->bufsize = size;
#ifdef DHD_LOG_DUMP
        dhd_print_buf_addr(dhdp, "memdump", buf, size);
#endif /* DHD_LOG_DUMP */

        if (dhdp->memdump_enabled == DUMP_MEMONLY) {
                BUG_ON(1);
        }

#if defined(DEBUG_DNGL_INIT_FAIL) || defined(DHD_ERPOM)
        if (
#if defined(DEBUG_DNGL_INIT_FAIL)
                (dhdp->memdump_type == DUMP_TYPE_DONGLE_INIT_FAILURE) ||
#endif /* DEBUG_DNGL_INIT_FAIL */
#ifdef DHD_ERPOM
                (dhdp->memdump_type == DUMP_TYPE_DUE_TO_BT) ||
#endif /* DHD_ERPOM */
                FALSE)
        {
#ifdef DHD_LOG_DUMP
                log_dump_type_t *flush_type = NULL;
#endif // endif
                dhd_info->scheduled_memdump = FALSE;
                dhd_mem_dump((void *)dhdp->info, (void *)dump, 0);
                /* for dongle init fail cases, 'dhd_mem_dump' does
                * not call 'dhd_log_dump', so call it here.
                */
#ifdef DHD_LOG_DUMP
                flush_type = MALLOCZ(dhdp->osh,
                                sizeof(log_dump_type_t));
                if (flush_type) {
                        *flush_type = DLD_BUF_TYPE_ALL;
                        DHD_ERROR(("%s: calling log dump.. \n", __FUNCTION__));
                        dhd_log_dump(dhdp->info, flush_type, 0);
                }
#endif /* DHD_LOG_DUMP */
                return;
        }
#endif /* DEBUG_DNGL_INIT_FAIL || DHD_ERPOM */

        dhd_info->scheduled_memdump = TRUE;
        /* bus busy bit for mem dump will be cleared in mem dump
        * work item context, after mem dump file is written
        */
        DHD_GENERAL_LOCK(dhdp, flags);
        DHD_BUS_BUSY_SET_IN_MEMDUMP(dhdp);
        DHD_GENERAL_UNLOCK(dhdp, flags);
        DHD_ERROR(("%s: scheduling mem dump.. \n", __FUNCTION__));
        dhd_deferred_schedule_work(dhdp->info->dhd_deferred_wq, (void *)dump,
                DHD_WQ_WORK_SOC_RAM_DUMP, dhd_mem_dump, DHD_WQ_WORK_PRIORITY_HIGH);
}
static void
dhd_mem_dump(void *handle, void *event_info, u8 event)
{
        dhd_info_t *dhd = handle;
        dhd_pub_t *dhdp = NULL;
        dhd_dump_t *dump = event_info;
        unsigned long flags = 0;

        DHD_ERROR(("%s: ENTER \n", __FUNCTION__));

        if (!dhd) {
                DHD_ERROR(("%s: dhd is NULL\n", __FUNCTION__));
                return;
        }

        dhdp = &dhd->pub;

        DHD_GENERAL_LOCK(dhdp, flags);
        if (DHD_BUS_CHECK_DOWN_OR_DOWN_IN_PROGRESS(dhdp)) {
                DHD_GENERAL_UNLOCK(dhdp, flags);
                DHD_ERROR(("%s: bus is down! can't collect mem dump. \n", __FUNCTION__));
                goto exit;
        }
        DHD_GENERAL_UNLOCK(dhdp, flags);

#ifdef D2H_MINIDUMP
        /* dump minidump */
        if (dhd_bus_is_minidump_enabled(dhdp)) {
                dhd_d2h_minidump(&dhd->pub);
        } else {
                DHD_ERROR(("minidump is not enabled\n"));
        }
#endif /* D2H_MINIDUMP */

        if (!dump) {
                DHD_ERROR(("%s: dump is NULL\n", __FUNCTION__));
                goto exit;
        }

        if (write_dump_to_file(&dhd->pub, dump->buf, dump->bufsize, "mem_dump")) {
                DHD_ERROR(("%s: writing SoC_RAM dump to the file failed\n", __FUNCTION__));
#ifdef DHD_DEBUG_UART
                dhd->pub.memdump_success = FALSE;
#endif  /* DHD_DEBUG_UART */
        }

        /* directly call dhd_log_dump for debug_dump collection from the mem_dump work queue
        * context, no need to schedule another work queue for log dump. In case of
        * user initiated DEBUG_DUMP wpa_cli command (DUMP_TYPE_BY_SYSDUMP),
        * cfg layer is itself scheduling the log_dump work queue.
        * that path is not disturbed. If 'dhd_mem_dump' is called directly then we will not
        * collect debug_dump as it may be called from non-sleepable context.
        */
#ifdef DHD_LOG_DUMP
        if (dhd->scheduled_memdump &&
                dhdp->memdump_type != DUMP_TYPE_BY_SYSDUMP) {
                log_dump_type_t *flush_type = MALLOCZ(dhdp->osh,
                                sizeof(log_dump_type_t));
                if (flush_type) {
                        *flush_type = DLD_BUF_TYPE_ALL;
                        DHD_ERROR(("%s: calling log dump.. \n", __FUNCTION__));
                        dhd_log_dump(dhd, flush_type, 0);
                }
        }
#endif /* DHD_LOG_DUMP */

#ifdef DHD_PKT_LOGGING
        copy_debug_dump_time(dhdp->debug_dump_time_pktlog_str, dhdp->debug_dump_time_str);
#endif /* DHD_PKT_LOGGING */
        clear_debug_dump_time(dhdp->debug_dump_time_str);

        /* before calling bug on, wait for other logs to be dumped.
        * we cannot wait in case dhd_mem_dump is called directly
        * as it may not be in a sleepable context
        */
        if (dhd->scheduled_memdump)     {
                uint bitmask = 0;
                int timeleft = 0;
#ifdef DHD_SSSR_DUMP
                bitmask |= DHD_BUS_BUSY_IN_SSSRDUMP;
#endif // endif
                if (bitmask != 0) {
                        timeleft = dhd_os_busbusy_wait_bitmask(dhdp,
                                        &dhdp->dhd_bus_busy_state, bitmask, 0);
                        if ((timeleft == 0) || (timeleft == 1)) {
                                DHD_ERROR(("%s:Timed out on sssr dump,dhd_bus_busy_state=0x%x\n",
                                                __FUNCTION__, dhdp->dhd_bus_busy_state));
                        }
                }
        }

        if (dhd->pub.memdump_enabled == DUMP_MEMFILE_BUGON &&
#ifdef DHD_LOG_DUMP
                dhd->pub.memdump_type != DUMP_TYPE_BY_SYSDUMP &&
#endif /* DHD_LOG_DUMP */
                dhd->pub.memdump_type != DUMP_TYPE_BY_USER &&
#ifdef DHD_DEBUG_UART
                dhd->pub.memdump_success == TRUE &&
#endif  /* DHD_DEBUG_UART */
#ifdef DNGL_EVENT_SUPPORT
                dhd->pub.memdump_type != DUMP_TYPE_DONGLE_HOST_EVENT &&
#endif /* DNGL_EVENT_SUPPORT */
                dhd->pub.memdump_type != DUMP_TYPE_CFG_VENDOR_TRIGGERED) {

#ifdef SHOW_LOGTRACE
                /* Wait till event_log_dispatcher_work finishes */
                cancel_delayed_work_sync(&dhd->event_log_dispatcher_work);
#endif /* SHOW_LOGTRACE */

                BUG_ON(1);
        }

exit:
        if (dump)
                MFREE(dhd->pub.osh, dump, sizeof(dhd_dump_t));
        DHD_GENERAL_LOCK(dhdp, flags);
        DHD_BUS_BUSY_CLEAR_IN_MEMDUMP(&dhd->pub);
        dhd_os_busbusy_wake(dhdp);
        DHD_GENERAL_UNLOCK(dhdp, flags);
        dhd->scheduled_memdump = FALSE;
}
#endif /* DHD_FW_COREDUMP */

#ifdef D2H_MINIDUMP
void
dhd_d2h_minidump(dhd_pub_t *dhdp)
{
        char d2h_minidump[128];
        dhd_dma_buf_t *minidump_buf;

        minidump_buf = dhd_prot_get_minidump_buf(dhdp);
        if (minidump_buf->va == NULL) {
                DHD_ERROR(("%s: minidump_buf is NULL\n", __FUNCTION__));
                return;
        }

        /* Init file name */
        memset(d2h_minidump, 0, sizeof(d2h_minidump));
        snprintf(d2h_minidump, sizeof(d2h_minidump), "%s", "d2h_minidump");

        if (write_dump_to_file(dhdp, (uint8 *)minidump_buf->va,
                BCMPCIE_HOST_EXT_TRAP_DBGBUF_LEN_MIN, d2h_minidump)) {
                DHD_ERROR(("%s: failed to dump d2h_minidump to file\n",
                        __FUNCTION__));
        }
}
#endif /* D2H_MINIDUMP */

#ifdef DHD_SSSR_DUMP

static void
dhd_sssr_dump(void *handle, void *event_info, u8 event)
{
        dhd_info_t *dhd = handle;
        dhd_pub_t *dhdp;
        int i;
        char before_sr_dump[128];
        char after_sr_dump[128];
        unsigned long flags = 0;
        uint dig_buf_size = 0;

        DHD_ERROR(("%s: ENTER \n", __FUNCTION__));

        if (!dhd) {
                DHD_ERROR(("%s: dhd is NULL\n", __FUNCTION__));
                return;
        }

        dhdp = &dhd->pub;

        DHD_GENERAL_LOCK(dhdp, flags);
        if (DHD_BUS_CHECK_DOWN_OR_DOWN_IN_PROGRESS(dhdp)) {
                DHD_GENERAL_UNLOCK(dhdp, flags);
                DHD_ERROR(("%s: bus is down! can't collect sssr dump. \n", __FUNCTION__));
                goto exit;
        }
        DHD_GENERAL_UNLOCK(dhdp, flags);

        for (i = 0; i < MAX_NUM_D11CORES; i++) {
                /* Init file name */
                memset(before_sr_dump, 0, sizeof(before_sr_dump));
                memset(after_sr_dump, 0, sizeof(after_sr_dump));

                snprintf(before_sr_dump, sizeof(before_sr_dump), "%s_%d_%s",
                        "sssr_core", i, "before_SR");
                snprintf(after_sr_dump, sizeof(after_sr_dump), "%s_%d_%s",
                        "sssr_core", i, "after_SR");

                if (dhdp->sssr_d11_before[i] && dhdp->sssr_d11_outofreset[i]) {
                        if (write_dump_to_file(dhdp, (uint8 *)dhdp->sssr_d11_before[i],
                                dhdp->sssr_reg_info.mac_regs[i].sr_size, before_sr_dump)) {
                                DHD_ERROR(("%s: writing SSSR MAIN dump before to the file failed\n",
                                        __FUNCTION__));
                        }
                }
                if (dhdp->sssr_d11_after[i] && dhdp->sssr_d11_outofreset[i]) {
                        if (write_dump_to_file(dhdp, (uint8 *)dhdp->sssr_d11_after[i],
                                dhdp->sssr_reg_info.mac_regs[i].sr_size, after_sr_dump)) {
                                DHD_ERROR(("%s: writing SSSR AUX dump after to the file failed\n",
                                        __FUNCTION__));
                        }
                }
        }

        if (dhdp->sssr_reg_info.vasip_regs.vasip_sr_size) {
                dig_buf_size = dhdp->sssr_reg_info.vasip_regs.vasip_sr_size;
        } else if ((dhdp->sssr_reg_info.length > OFFSETOF(sssr_reg_info_v1_t, dig_mem_info)) &&
                dhdp->sssr_reg_info.dig_mem_info.dig_sr_size) {
                dig_buf_size = dhdp->sssr_reg_info.dig_mem_info.dig_sr_size;
        }

        if (dhdp->sssr_dig_buf_before) {
                if (write_dump_to_file(dhdp, (uint8 *)dhdp->sssr_dig_buf_before,
                        dig_buf_size, "sssr_dig_before_SR")) {
                        DHD_ERROR(("%s: writing SSSR Dig dump before to the file failed\n",
                                __FUNCTION__));
                }
        }

        if (dhdp->sssr_dig_buf_after) {
                if (write_dump_to_file(dhdp, (uint8 *)dhdp->sssr_dig_buf_after,
                        dig_buf_size, "sssr_dig_after_SR")) {
                        DHD_ERROR(("%s: writing SSSR Dig VASIP dump after to the file failed\n",
                                __FUNCTION__));
                }
        }

exit:
        DHD_GENERAL_LOCK(dhdp, flags);
        DHD_BUS_BUSY_CLEAR_IN_SSSRDUMP(dhdp);
        dhd_os_busbusy_wake(dhdp);
        DHD_GENERAL_UNLOCK(dhdp, flags);
}

void
dhd_schedule_sssr_dump(dhd_pub_t *dhdp)
{
        unsigned long flags = 0;

        /* bus busy bit for sssr dump will be cleared in sssr dump
        * work item context, after sssr dump files are created
        */
        DHD_GENERAL_LOCK(dhdp, flags);
        DHD_BUS_BUSY_SET_IN_SSSRDUMP(dhdp);
        DHD_GENERAL_UNLOCK(dhdp, flags);

        if (dhdp->info->no_wq_sssrdump) {
                dhd_sssr_dump(dhdp->info, 0, 0);
                return;
        }

        DHD_ERROR(("%s: scheduling sssr dump.. \n", __FUNCTION__));
        dhd_deferred_schedule_work(dhdp->info->dhd_deferred_wq, NULL,
                DHD_WQ_WORK_SSSR_DUMP, dhd_sssr_dump, DHD_WQ_WORK_PRIORITY_HIGH);
}
#endif /* DHD_SSSR_DUMP */

#ifdef DHD_LOG_DUMP
static void
dhd_log_dump(void *handle, void *event_info, u8 event)
{
        dhd_info_t *dhd = handle;
        log_dump_type_t *type = (log_dump_type_t *)event_info;

        if (!dhd || !type) {
                DHD_ERROR(("%s: dhd is NULL\n", __FUNCTION__));
                return;
        }

#ifdef WL_CFG80211
        /* flush the fw side logs */
        wl_flush_fw_log_buffer(dhd_linux_get_primary_netdev(&dhd->pub),
                FW_LOGSET_MASK_ALL);
#endif // endif
        /* there are currently 3 possible contexts from which
         * log dump can be scheduled -
         * 1.TRAP 2.supplicant DEBUG_DUMP pvt driver command
         * 3.HEALTH CHECK event
         * The concise debug info buffer is a shared resource
         * and in case a trap is one of the contexts then both the
         * scheduled work queues need to run because trap data is
         * essential for debugging. Hence a mutex lock is acquired
         * before calling do_dhd_log_dump().
         */
        DHD_ERROR(("%s: calling log dump.. \n", __FUNCTION__));
        dhd_os_logdump_lock(&dhd->pub);
        DHD_OS_WAKE_LOCK(&dhd->pub);
        if (do_dhd_log_dump(&dhd->pub, type) != BCME_OK) {
                DHD_ERROR(("%s: writing debug dump to the file failed\n", __FUNCTION__));
        }
        DHD_OS_WAKE_UNLOCK(&dhd->pub);
        dhd_os_logdump_unlock(&dhd->pub);
}

void dhd_schedule_log_dump(dhd_pub_t *dhdp, void *type)
{
        DHD_ERROR(("%s: scheduling log dump.. \n", __FUNCTION__));
        dhd_deferred_schedule_work(dhdp->info->dhd_deferred_wq,
                type, DHD_WQ_WORK_DHD_LOG_DUMP,
                dhd_log_dump, DHD_WQ_WORK_PRIORITY_HIGH);
}

static void
dhd_print_buf_addr(dhd_pub_t *dhdp, char *name, void *buf, unsigned int size)
{
        if ((dhdp->memdump_enabled == DUMP_MEMONLY) ||
                (dhdp->memdump_enabled == DUMP_MEMFILE_BUGON)) {
#if defined(CONFIG_ARM64)
                DHD_ERROR(("-------- %s: buf(va)=%llx, buf(pa)=%llx, bufsize=%d\n",
                        name, (uint64)buf, (uint64)__virt_to_phys((ulong)buf), size));
#elif defined(__ARM_ARCH_7A__)
                DHD_ERROR(("-------- %s: buf(va)=%x, buf(pa)=%x, bufsize=%d\n",
                        name, (uint32)buf, (uint32)__virt_to_phys((ulong)buf), size));
#endif /* __ARM_ARCH_7A__ */
        }
}

static void
dhd_log_dump_buf_addr(dhd_pub_t *dhdp, log_dump_type_t *type)
{
        int i;
        unsigned long wr_size = 0;
        struct dhd_log_dump_buf *dld_buf = &g_dld_buf[0];
        size_t log_size = 0;
        char buf_name[DHD_PRINT_BUF_NAME_LEN];
        dhd_dbg_ring_t *ring = NULL;

        BCM_REFERENCE(ring);

        for (i = 0; i < DLD_BUFFER_NUM; i++) {
                dld_buf = &g_dld_buf[i];
                log_size = (unsigned long)dld_buf->max -
                        (unsigned long)dld_buf->buffer;
                if (dld_buf->wraparound) {
                        wr_size = log_size;
                } else {
                        wr_size = (unsigned long)dld_buf->present -
                                (unsigned long)dld_buf->front;
                }
                scnprintf(buf_name, sizeof(buf_name), "dlb_buf[%d]", i);
                dhd_print_buf_addr(dhdp, buf_name, dld_buf, dld_buf_size[i]);
                scnprintf(buf_name, sizeof(buf_name), "dlb_buf[%d] buffer", i);
                dhd_print_buf_addr(dhdp, buf_name, dld_buf->buffer, wr_size);
                scnprintf(buf_name, sizeof(buf_name), "dlb_buf[%d] present", i);
                dhd_print_buf_addr(dhdp, buf_name, dld_buf->present, wr_size);
                scnprintf(buf_name, sizeof(buf_name), "dlb_buf[%d] front", i);
                dhd_print_buf_addr(dhdp, buf_name, dld_buf->front, wr_size);
        }

#ifdef DEBUGABILITY_ECNTRS_LOGGING
        /* periodic flushing of ecounters is NOT supported */
        if (*type == DLD_BUF_TYPE_ALL &&
                        logdump_ecntr_enable &&
                        dhdp->ecntr_dbg_ring) {

                ring = (dhd_dbg_ring_t *)dhdp->ecntr_dbg_ring;
                dhd_print_buf_addr(dhdp, "ecntr_dbg_ring", ring, LOG_DUMP_ECNTRS_MAX_BUFSIZE);
                dhd_print_buf_addr(dhdp, "ecntr_dbg_ring ring_buf", ring->ring_buf,
                                LOG_DUMP_ECNTRS_MAX_BUFSIZE);
        }
#endif /* DEBUGABILITY_ECNTRS_LOGGING */

#ifdef BCMPCIE
        if (dhdp->dongle_trap_occured && dhdp->extended_trap_data) {
                dhd_print_buf_addr(dhdp, "extended_trap_data", dhdp->extended_trap_data,
                                BCMPCIE_EXT_TRAP_DATA_MAXLEN);
        }
#endif /* BCMPCIE */

#if defined(DHD_FW_COREDUMP) && defined(DNGL_EVENT_SUPPORT)
        /* if health check event was received */
        if (dhdp->memdump_type == DUMP_TYPE_DONGLE_HOST_EVENT) {
                dhd_print_buf_addr(dhdp, "health_chk_event_data", dhdp->health_chk_event_data,
                                HEALTH_CHK_BUF_SIZE);
        }
#endif /* DHD_FW_COREDUMP && DNGL_EVENT_SUPPORT */

        /* append the concise debug information */
        if (dhdp->concise_dbg_buf) {
                dhd_print_buf_addr(dhdp, "concise_dbg_buf", dhdp->concise_dbg_buf,
                                CONCISE_DUMP_BUFLEN);
        }
}

#ifdef CUSTOMER_HW4_DEBUG
static void
dhd_log_dump_print_to_kmsg(char *bufptr, unsigned long len)
{
        char tmp_buf[DHD_LOG_DUMP_MAX_TEMP_BUFFER_SIZE + 1];
        char *end = NULL;
        unsigned long plen = 0;

        if (!bufptr || !len)
                return;

        memset(tmp_buf, 0, DHD_LOG_DUMP_MAX_TEMP_BUFFER_SIZE);
        end = bufptr + len;
        while (bufptr < end) {
                if ((bufptr + DHD_LOG_DUMP_MAX_TEMP_BUFFER_SIZE) < end) {
                        memcpy(tmp_buf, bufptr, DHD_LOG_DUMP_MAX_TEMP_BUFFER_SIZE);
                        tmp_buf[DHD_LOG_DUMP_MAX_TEMP_BUFFER_SIZE] = '\0';
                        printf("%s", tmp_buf);
                        bufptr += DHD_LOG_DUMP_MAX_TEMP_BUFFER_SIZE;
                } else {
                        plen = (unsigned long)end - (unsigned long)bufptr;
                        memcpy(tmp_buf, bufptr, plen);
                        tmp_buf[plen] = '\0';
                        printf("%s", tmp_buf);
                        bufptr += plen;
                }
        }
}

static void
dhd_log_dump_print_tail(dhd_pub_t *dhdp,
                struct dhd_log_dump_buf *dld_buf,
                uint tail_len)
{
        char *flush_ptr1 = NULL, *flush_ptr2 = NULL;
        unsigned long len_flush1 = 0, len_flush2 = 0;
        unsigned long flags = 0;

        /* need to hold the lock before accessing 'present' and 'remain' ptrs */
        spin_lock_irqsave(&dld_buf->lock, flags);
        flush_ptr1 = dld_buf->present - tail_len;
        if (flush_ptr1 >= dld_buf->front) {
                /* tail content is within the buffer */
                flush_ptr2 = NULL;
                len_flush1 = tail_len;
        } else if (dld_buf->wraparound) {
                /* tail content spans the buffer length i.e, wrap around */
                flush_ptr1 = dld_buf->front;
                len_flush1 = (unsigned long)dld_buf->present - (unsigned long)flush_ptr1;
                len_flush2 = (unsigned long)tail_len - len_flush1;
                flush_ptr2 = (char *)((unsigned long)dld_buf->max -
                        (unsigned long)len_flush2);
        } else {
                /* amt of logs in buffer is less than tail size */
                flush_ptr1 = dld_buf->front;
                flush_ptr2 = NULL;
                len_flush1 = (unsigned long)dld_buf->present - (unsigned long)dld_buf->front;
        }
        spin_unlock_irqrestore(&dld_buf->lock, flags);

        printf("\n================= LOG_DUMP tail =================\n");
        if (flush_ptr2) {
                dhd_log_dump_print_to_kmsg(flush_ptr2, len_flush2);
        }
        dhd_log_dump_print_to_kmsg(flush_ptr1, len_flush1);
        printf("\n===================================================\n");
}
#endif /* CUSTOMER_HW4_DEBUG */

/* Must hold 'dhd_os_logdump_lock' before calling this function ! */
static int
do_dhd_log_dump(dhd_pub_t *dhdp, log_dump_type_t *type)
{
        int ret = 0, i = 0;
        struct file *fp = NULL;
        mm_segment_t old_fs;
        loff_t pos = 0;
        unsigned int wr_size = 0;
        char dump_path[128];
        uint32 file_mode;
        unsigned long flags = 0;
        struct dhd_log_dump_buf *dld_buf = &g_dld_buf[0];
        size_t log_size = 0;
        size_t fspace_remain = 0;
        struct kstat stat;
        char time_str[128];
        char *ts = NULL;
        uint32 remain_len = 0;
        log_dump_section_hdr_t sec_hdr;
        dhd_info_t *dhd_info = NULL;

        DHD_ERROR(("%s: ENTER \n", __FUNCTION__));

        /* if dhdp is null, its extremely unlikely that log dump will be scheduled
         * so not freeing 'type' here is ok, even if we want to free 'type'
         * we cannot do so, since 'dhdp->osh' is unavailable
         * as dhdp is null
         */
        if (!dhdp || !type) {
                if (dhdp) {
                        DHD_GENERAL_LOCK(dhdp, flags);
                        DHD_BUS_BUSY_CLEAR_IN_LOGDUMP(dhdp);
                        dhd_os_busbusy_wake(dhdp);
                        DHD_GENERAL_UNLOCK(dhdp, flags);
                }
                return BCME_ERROR;
        }

        DHD_GENERAL_LOCK(dhdp, flags);
        if (DHD_BUS_CHECK_DOWN_OR_DOWN_IN_PROGRESS(dhdp)) {
                DHD_BUS_BUSY_CLEAR_IN_LOGDUMP(dhdp);
                dhd_os_busbusy_wake(dhdp);
                DHD_GENERAL_UNLOCK(dhdp, flags);
                MFREE(dhdp->osh, type, sizeof(*type));
                DHD_ERROR(("%s: bus is down! can't collect log dump. \n", __FUNCTION__));
                return BCME_ERROR;
        }
        DHD_BUS_BUSY_SET_IN_LOGDUMP(dhdp);
        DHD_GENERAL_UNLOCK(dhdp, flags);

        dhd_info = (dhd_info_t *)dhdp->info;
        BCM_REFERENCE(dhd_info);

        /* in case of trap get preserve logs from ETD */
#if defined(BCMPCIE) && defined(DEBUGABILITY_ETD_PRSRV_LOGS)
        if (dhdp->dongle_trap_occured &&
                        dhdp->extended_trap_data) {
                dhdpcie_get_etd_preserve_logs(dhdp, (uint8 *)dhdp->extended_trap_data,
                                &dhd_info->event_data);
        }
#endif /* BCMPCIE */

#ifdef SHOW_LOGTRACE
        /* flush the event work items to get any fw events/logs
         * flush_work is a blocking call
         */
        flush_delayed_work(&dhd_info->event_log_dispatcher_work);
#endif /* SHOW_LOGTRACE */

#ifdef CUSTOMER_HW4_DEBUG
        /* print last 'x' KB of preserve buffer data to kmsg console
        * this is to address cases where debug_dump is not
        * available for debugging
        */
        dhd_log_dump_print_tail(dhdp,
                &g_dld_buf[DLD_BUF_TYPE_PRESERVE], logdump_prsrv_tailsize);
#endif /* CUSTOMER_HW4_DEBUG */

        /* change to KERNEL_DS address limit */
        old_fs = get_fs();
        set_fs(KERNEL_DS);

        /* Init file name */
        memset(dump_path, 0, sizeof(dump_path));
        switch (dhdp->debug_dump_subcmd) {
        case CMD_UNWANTED:
                snprintf(dump_path, sizeof(dump_path), "%s",
                        DHD_COMMON_DUMP_PATH DHD_DEBUG_DUMP_TYPE
                        DHD_DUMP_SUBSTR_UNWANTED);
                break;
        case CMD_DISCONNECTED:
                snprintf(dump_path, sizeof(dump_path), "%s",
                        DHD_COMMON_DUMP_PATH DHD_DEBUG_DUMP_TYPE
                        DHD_DUMP_SUBSTR_DISCONNECTED);
                break;
        default:
                snprintf(dump_path, sizeof(dump_path), "%s",
                        DHD_COMMON_DUMP_PATH DHD_DEBUG_DUMP_TYPE);
        }

        if (!dhdp->logdump_periodic_flush) {
                get_debug_dump_time(dhdp->debug_dump_time_str);
                snprintf(dump_path + strlen(dump_path),
                        sizeof(dump_path) - strlen(dump_path),
                        "_%s", dhdp->debug_dump_time_str);
        }

        memset(time_str, 0, sizeof(time_str));
        ts = dhd_log_dump_get_timestamp();
        snprintf(time_str, sizeof(time_str),
                        "\n\n ========== LOG DUMP TAKEN AT : %s =========\n", ts);

        DHD_ERROR(("DHD version: %s\n", dhd_version));
        DHD_ERROR(("F/W version: %s\n", fw_version));
        DHD_ERROR(("debug_dump_path = %s\n", dump_path));

        dhd_log_dump_buf_addr(dhdp, type);

        /* if this is the first time after dhd is loaded,
         * or, if periodic flush is disabled, clear the log file
         */
        if (!dhdp->logdump_periodic_flush || dhdp->last_file_posn == 0)
                file_mode = O_CREAT | O_WRONLY | O_SYNC | O_TRUNC;
        else
                file_mode = O_CREAT | O_RDWR | O_SYNC;

        fp = filp_open(dump_path, file_mode, 0664);
        if (IS_ERR(fp)) {
                /* If android installed image, try '/data' directory */
#if defined(CONFIG_X86)
                DHD_ERROR(("%s: File open error on Installed android image, trying /data...\n",
                        __FUNCTION__));
                snprintf(dump_path, sizeof(dump_path), "/data/" DHD_DEBUG_DUMP_TYPE);
                if (!dhdp->logdump_periodic_flush) {
                        snprintf(dump_path + strlen(dump_path),
                                sizeof(dump_path) - strlen(dump_path),
                                "_%s", dhdp->debug_dump_time_str);
                }
                fp = filp_open(dump_path, file_mode, 0664);
                if (IS_ERR(fp)) {
                        ret = PTR_ERR(fp);
                        DHD_ERROR(("open file error, err = %d\n", ret));
                        goto exit;
                }
                DHD_ERROR(("debug_dump_path = %s\n", dump_path));
#else
                ret = PTR_ERR(fp);
                DHD_ERROR(("open file error, err = %d\n", ret));
                goto exit;
#endif /* CONFIG_X86 && OEM_ANDROID */
        }

        ret = vfs_stat(dump_path, &stat);
        if (ret < 0) {
                DHD_ERROR(("file stat error, err = %d\n", ret));
                goto exit;
        }

        /* if some one else has changed the file */
        if (dhdp->last_file_posn != 0 &&
                        stat.size < dhdp->last_file_posn) {
                dhdp->last_file_posn = 0;
        }

        if (dhdp->logdump_periodic_flush) {
                log_size = strlen(time_str) + strlen(DHD_DUMP_LOG_HDR) + sizeof(sec_hdr);
                /* calculate the amount of space required to dump all logs */
                for (i = 0; i < DLD_BUFFER_NUM; ++i) {
                        if (*type != DLD_BUF_TYPE_ALL && i != *type)
                                continue;

                        if (g_dld_buf[i].wraparound) {
                                log_size += (unsigned long)g_dld_buf[i].max
                                                - (unsigned long)g_dld_buf[i].buffer;
                        } else {
                                spin_lock_irqsave(&g_dld_buf[i].lock, flags);
                                log_size += (unsigned long)g_dld_buf[i].present -
                                                (unsigned long)g_dld_buf[i].front;
                                spin_unlock_irqrestore(&g_dld_buf[i].lock, flags);
                        }
                        log_size += strlen(dld_hdrs[i].hdr_str) + sizeof(sec_hdr);

                        if (*type != DLD_BUF_TYPE_ALL && i == *type)
                                break;
                }

                ret = generic_file_llseek(fp, dhdp->last_file_posn, SEEK_CUR);
                if (ret < 0) {
                        DHD_ERROR(("file seek last posn error ! err = %d \n", ret));
                        goto exit;
                }
                pos = fp->f_pos;

                /* if the max file size is reached, wrap around to beginning of the file
                 * we're treating the file as a large ring buffer
                 */
                fspace_remain = logdump_max_filesize - pos;
                if (log_size > fspace_remain) {
                        fp->f_pos -= pos;
                        pos = fp->f_pos;
                }
        }
        /* write the timestamp hdr to the file first */
        ret = vfs_write(fp, time_str, strlen(time_str), &pos);
        if (ret < 0) {
                DHD_ERROR(("write file error, err = %d\n", ret));
                goto exit;
        }

        /* prep the section header */
        memset(&sec_hdr, 0, sizeof(sec_hdr));
        sec_hdr.magic = LOG_DUMP_MAGIC;
        sec_hdr.timestamp = local_clock();

        for (i = 0; i < DLD_BUFFER_NUM; ++i) {
                unsigned int buf_size = 0;

                if (*type != DLD_BUF_TYPE_ALL && i != *type)
                        continue;

                /* calculate the length of the log */
                dld_buf = &g_dld_buf[i];
                buf_size = (unsigned long)dld_buf->max -
                                (unsigned long)dld_buf->buffer;
                if (dld_buf->wraparound) {
                        wr_size = buf_size;
                } else {
                        /* need to hold the lock before accessing 'present' and 'remain' ptrs */
                        spin_lock_irqsave(&dld_buf->lock, flags);
                        wr_size = (unsigned long)dld_buf->present -
                                        (unsigned long)dld_buf->front;
                        spin_unlock_irqrestore(&dld_buf->lock, flags);
                }

                /* write the section header first */
                sec_hdr.type = dld_hdrs[i].sec_type;
                sec_hdr.length = wr_size;
                vfs_write(fp, dld_hdrs[i].hdr_str, strlen(dld_hdrs[i].hdr_str), &pos);
                vfs_write(fp, (char *)&sec_hdr, sizeof(sec_hdr), &pos);
                /* write the log */
                ret = vfs_write(fp, dld_buf->buffer, wr_size, &pos);
                if (ret < 0) {
                        DHD_ERROR(("write file error, err = %d\n", ret));
                        goto exit;
                }

                /* re-init dhd_log_dump_buf structure */
                spin_lock_irqsave(&dld_buf->lock, flags);
                dld_buf->wraparound = 0;
                dld_buf->present = dld_buf->front;
                dld_buf->remain = buf_size;
                bzero(dld_buf->buffer, buf_size);
                spin_unlock_irqrestore(&dld_buf->lock, flags);

                if (*type != DLD_BUF_TYPE_ALL)
                        break;
        }

#ifdef DEBUGABILITY_ECNTRS_LOGGING
        /* periodic flushing of ecounters is NOT supported */
        if (*type == DLD_BUF_TYPE_ALL &&
                        logdump_ecntr_enable &&
                        dhdp->ecntr_dbg_ring) {
                dhd_log_dump_ring_to_file(dhdp, dhdp->ecntr_dbg_ring,
                                fp, (unsigned long *)&pos, &sec_hdr);
        }
#endif /* DEBUGABILITY_ECNTRS_LOGGING */

#ifdef BCMPCIE
        /* append extended trap data to the file in case of traps */
        if (dhdp->dongle_trap_occured &&
                        dhdp->extended_trap_data) {
                /* write the section header first */
                vfs_write(fp, EXT_TRAP_LOG_HDR, strlen(EXT_TRAP_LOG_HDR), &pos);
                sec_hdr.type = LOG_DUMP_SECTION_EXT_TRAP;
                sec_hdr.length = BCMPCIE_EXT_TRAP_DATA_MAXLEN;
                vfs_write(fp, (char *)&sec_hdr, sizeof(sec_hdr), &pos);
                /* write the log */
                ret = vfs_write(fp, (char *)dhdp->extended_trap_data,
                                BCMPCIE_EXT_TRAP_DATA_MAXLEN, &pos);
                if (ret < 0) {
                        DHD_ERROR(("write file error of ext trap info,"
                                        " err = %d\n", ret));
                        goto exit;
                }
        }
#endif /* BCMPCIE */

#if defined(DHD_FW_COREDUMP) && defined(DNGL_EVENT_SUPPORT)
        /* if health check event was received, dump to file */
        if (dhdp->memdump_type == DUMP_TYPE_DONGLE_HOST_EVENT) {
                /* write the section header first */
                vfs_write(fp, HEALTH_CHK_LOG_HDR, strlen(HEALTH_CHK_LOG_HDR), &pos);
                sec_hdr.type = LOG_DUMP_SECTION_HEALTH_CHK;
                sec_hdr.length = HEALTH_CHK_BUF_SIZE;
                vfs_write(fp, (char *)&sec_hdr, sizeof(sec_hdr), &pos);
                /* write the log */
                ret = vfs_write(fp, (char *)dhdp->health_chk_event_data,
                                HEALTH_CHK_BUF_SIZE, &pos);
                if (ret < 0) {
                        DHD_ERROR(("write file error of health chk info,"
                                        " err = %d\n", ret));
                        goto exit;
                }
        }
#endif /* DHD_FW_COREDUMP && DNGL_EVENT_SUPPORT */

#ifdef DHD_DUMP_PCIE_RINGS
                /* write the section header first */
                vfs_write(fp, FLOWRING_DUMP_HDR, strlen(FLOWRING_DUMP_HDR), &pos);
                /* Write the ring summary */
                ret = vfs_write(fp, dhdp->concise_dbg_buf, CONCISE_DUMP_BUFLEN - remain_len, &pos);
                if (ret < 0) {
                        DHD_ERROR(("write file error of concise debug info,"
                                                                        " err = %d\n", ret));
                        goto exit;
                }
                sec_hdr.type = LOG_DUMP_SECTION_FLOWRING;
                sec_hdr.length = ((H2DRING_TXPOST_ITEMSIZE
                                        * H2DRING_TXPOST_MAX_ITEM)
                                        + (D2HRING_TXCMPLT_ITEMSIZE
                                        * D2HRING_TXCMPLT_MAX_ITEM)
                                        + (H2DRING_RXPOST_ITEMSIZE
                                        * H2DRING_RXPOST_MAX_ITEM)
                                        + (D2HRING_RXCMPLT_ITEMSIZE
                                        * D2HRING_RXCMPLT_MAX_ITEM)
                                        + (H2DRING_CTRL_SUB_ITEMSIZE
                                        * H2DRING_CTRL_SUB_MAX_ITEM)
                                        + (D2HRING_CTRL_CMPLT_ITEMSIZE
                                        * D2HRING_CTRL_CMPLT_MAX_ITEM)
                                        + (H2DRING_INFO_BUFPOST_ITEMSIZE
                                        * H2DRING_DYNAMIC_INFO_MAX_ITEM)
                                        + (D2HRING_INFO_BUFCMPLT_ITEMSIZE
                                        * D2HRING_DYNAMIC_INFO_MAX_ITEM));
                vfs_write(fp, (char *)&sec_hdr, sizeof(sec_hdr), &pos);
                /* write the log */
                ret = dhd_d2h_h2d_ring_dump(dhdp, fp, (unsigned long *)&pos);
                if (ret < 0) {
                        DHD_ERROR(("%s: error dumping ring data!\n",
                                __FUNCTION__));
                        goto exit;
                }
#endif /* DHD_DUMP_PCIE_RINGS */

        /* append the concise debug information to the file.
         * This is the information which is seen
         * when a 'dhd dump' iovar is fired
         */
        if (dhdp->concise_dbg_buf) {
                remain_len = dhd_dump(dhdp, (char *)dhdp->concise_dbg_buf, CONCISE_DUMP_BUFLEN);
                 if (remain_len <= 0) {
                        DHD_ERROR(("%s: error getting concise debug info !\n",
                                        __FUNCTION__));
                        goto exit;
                } else {
                        /* write the section header first */
                        vfs_write(fp, DHD_DUMP_LOG_HDR, strlen(DHD_DUMP_LOG_HDR), &pos);
                        sec_hdr.type = LOG_DUMP_SECTION_DHD_DUMP;
                        sec_hdr.length = CONCISE_DUMP_BUFLEN - remain_len;
                        vfs_write(fp, (char *)&sec_hdr, sizeof(sec_hdr), &pos);
                        /* write the log */
                        ret = vfs_write(fp, dhdp->concise_dbg_buf,
                                        CONCISE_DUMP_BUFLEN - remain_len, &pos);
                        if (ret < 0) {
                                DHD_ERROR(("write file error of concise debug info,"
                                                " err = %d\n", ret));
                                goto exit;
                        }
                }
        }

        if (dhdp->logdump_cookie && dhd_logdump_cookie_count(dhdp) > 0) {
                ret = dhd_log_dump_cookie_to_file(dhdp, fp, (unsigned long *)&pos);
                if (ret < 0) {
                        DHD_ERROR(("write file error of cooke info, err = %d\n", ret));
                        goto exit;
                }
        }

        if (dhdp->logdump_periodic_flush) {
                /* store the last position written to in the file for future use */
                dhdp->last_file_posn = pos;
        }

exit:
        MFREE(dhdp->osh, type, sizeof(*type));
        if (!IS_ERR(fp) && fp != NULL) {
                filp_close(fp, NULL);
                DHD_ERROR(("%s: Finished writing log dump to file - '%s' \n",
                                __FUNCTION__, dump_path));
        }
        set_fs(old_fs);
        DHD_GENERAL_LOCK(dhdp, flags);
        DHD_BUS_BUSY_CLEAR_IN_LOGDUMP(dhdp);
        dhd_os_busbusy_wake(dhdp);
        DHD_GENERAL_UNLOCK(dhdp, flags);

#ifdef DHD_DUMP_MNGR
        if (ret >= 0) {
                dhd_dump_file_manage_enqueue(dhdp, dump_path, DHD_DEBUG_DUMP_TYPE);
        }
#endif /* DHD_DUMP_MNGR */

        return (ret < 0) ? BCME_ERROR : BCME_OK;
}
#endif /* DHD_LOG_DUMP */

/*
 * This call is to get the memdump size so that,
 * halutil can alloc that much buffer in user space.
 */
int
dhd_os_socram_dump(struct net_device *dev, uint32 *dump_size)
{
        int ret = BCME_OK;
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
        dhd_pub_t *dhdp = &dhd->pub;

        if (dhdp->busstate == DHD_BUS_DOWN) {
                DHD_ERROR(("%s: bus is down\n", __FUNCTION__));
                return BCME_ERROR;
        }

        if (DHD_BUS_CHECK_SUSPEND_OR_SUSPEND_IN_PROGRESS(dhdp)) {
                DHD_ERROR(("%s: bus is in suspend(%d) or suspending(0x%x) state, so skip\n",
                        __FUNCTION__, dhdp->busstate, dhdp->dhd_bus_busy_state));
                return BCME_ERROR;
        }
#ifdef DHD_PCIE_RUNTIMEPM
        dhdpcie_runtime_bus_wake(dhdp, TRUE, __builtin_return_address(0));
#endif /* DHD_PCIE_RUNTIMEPM */
        ret = dhd_common_socram_dump(dhdp);
        if (ret == BCME_OK) {
                *dump_size = dhdp->soc_ram_length;
        }
        return ret;
}

/*
 * This is to get the actual memdup after getting the memdump size
 */
int
dhd_os_get_socram_dump(struct net_device *dev, char **buf, uint32 *size)
{
        int ret = BCME_OK;
        int orig_len = 0;
        dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
        dhd_pub_t *dhdp = &dhd->pub;
        if (buf == NULL)
                return BCME_ERROR;
        orig_len = *size;
        if (dhdp->soc_ram) {
                if (orig_len >= dhdp->soc_ram_length) {
                        memcpy(*buf, dhdp->soc_ram, dhdp->soc_ram_length);
                        /* reset the storage of dump */
                        memset(dhdp->soc_ram, 0, dhdp->soc_ram_length);
                        *size = dhdp->soc_ram_length;
                } else {
                        ret = BCME_BUFTOOSHORT;
                        DHD_ERROR(("The length of the buffer is too short"
                                " to save the memory dump with %d\n", dhdp->soc_ram_length));
                }
        } else {
                DHD_ERROR(("socram_dump is not ready to get\n"));
                ret = BCME_NOTREADY;
        }
        return ret;
}

int
dhd_os_get_version(struct net_device *dev, bool dhd_ver, char **buf, uint32 size)
{
        char *fw_str;

        if (size == 0)
                return BCME_BADARG;

        fw_str = strstr(info_string, "Firmware: ");
        if (fw_str == NULL) {
                return BCME_ERROR;
        }

        memset(*buf, 0, size);
        if (dhd_ver) {
                strncpy(*buf, dhd_version, size - 1);
        } else {
                strncpy(*buf, fw_str, size - 1);
        }
        return BCME_OK;
}

bool dhd_sta_associated(dhd_pub_t *dhdp, uint32 bssidx, uint8 *mac)
{
        return dhd_find_sta(dhdp, bssidx, mac) ? TRUE : FALSE;
}

#ifdef DHD_L2_FILTER
arp_table_t*
dhd_get_ifp_arp_table_handle(dhd_pub_t *dhdp, uint32 bssidx)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;

        ASSERT(bssidx < DHD_MAX_IFS);

        ifp = dhd->iflist[bssidx];
        return ifp->phnd_arp_table;
}

int dhd_get_parp_status(dhd_pub_t *dhdp, uint32 idx)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;

        ASSERT(idx < DHD_MAX_IFS);

        ifp = dhd->iflist[idx];

        if (ifp)
                return ifp->parp_enable;
        else
                return FALSE;
}

/* Set interface specific proxy arp configuration */
int dhd_set_parp_status(dhd_pub_t *dhdp, uint32 idx, int val)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;
        ASSERT(idx < DHD_MAX_IFS);
        ifp = dhd->iflist[idx];

        if (!ifp)
            return BCME_ERROR;

        /* At present all 3 variables are being
         * handled at once
         */
        ifp->parp_enable = val;
        ifp->parp_discard = val;
        ifp->parp_allnode = val;

        /* Flush ARP entries when disabled */
        if (val == FALSE) {
                bcm_l2_filter_arp_table_update(dhdp->osh, ifp->phnd_arp_table, TRUE, NULL,
                        FALSE, dhdp->tickcnt);
        }
        return BCME_OK;
}

bool dhd_parp_discard_is_enabled(dhd_pub_t *dhdp, uint32 idx)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;

        ASSERT(idx < DHD_MAX_IFS);

        ifp = dhd->iflist[idx];

        ASSERT(ifp);
        return ifp->parp_discard;
}

bool
dhd_parp_allnode_is_enabled(dhd_pub_t *dhdp, uint32 idx)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;

        ASSERT(idx < DHD_MAX_IFS);

        ifp = dhd->iflist[idx];

        ASSERT(ifp);

        return ifp->parp_allnode;
}

int dhd_get_dhcp_unicast_status(dhd_pub_t *dhdp, uint32 idx)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;

        ASSERT(idx < DHD_MAX_IFS);

        ifp = dhd->iflist[idx];

        ASSERT(ifp);

        return ifp->dhcp_unicast;
}

int dhd_set_dhcp_unicast_status(dhd_pub_t *dhdp, uint32 idx, int val)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;
        ASSERT(idx < DHD_MAX_IFS);
        ifp = dhd->iflist[idx];

        ASSERT(ifp);

        ifp->dhcp_unicast = val;
        return BCME_OK;
}

int dhd_get_block_ping_status(dhd_pub_t *dhdp, uint32 idx)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;

        ASSERT(idx < DHD_MAX_IFS);

        ifp = dhd->iflist[idx];

        ASSERT(ifp);

        return ifp->block_ping;
}

int dhd_set_block_ping_status(dhd_pub_t *dhdp, uint32 idx, int val)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;
        ASSERT(idx < DHD_MAX_IFS);
        ifp = dhd->iflist[idx];

        ASSERT(ifp);

        ifp->block_ping = val;
        /* Disable rx_pkt_chain feature for interface if block_ping option is
         * enabled
         */
        dhd_update_rx_pkt_chainable_state(dhdp, idx);
        return BCME_OK;
}

int dhd_get_grat_arp_status(dhd_pub_t *dhdp, uint32 idx)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;

        ASSERT(idx < DHD_MAX_IFS);

        ifp = dhd->iflist[idx];

        ASSERT(ifp);

        return ifp->grat_arp;
}

int dhd_set_grat_arp_status(dhd_pub_t *dhdp, uint32 idx, int val)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;
        ASSERT(idx < DHD_MAX_IFS);
        ifp = dhd->iflist[idx];

        ASSERT(ifp);

        ifp->grat_arp = val;

        return BCME_OK;
}

int dhd_get_block_tdls_status(dhd_pub_t *dhdp, uint32 idx)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;

        ASSERT(idx < DHD_MAX_IFS);

        ifp = dhd->iflist[idx];

        ASSERT(ifp);

        return ifp->block_tdls;
}

int dhd_set_block_tdls_status(dhd_pub_t *dhdp, uint32 idx, int val)
{
        dhd_info_t *dhd = dhdp->info;
        dhd_if_t *ifp;
        ASSERT(idx < DHD_MAX_IFS);
        ifp = dhd->iflist[idx];

        ASSERT(ifp);

        ifp->block_tdls = val;

        return BCME_OK;
}
#endif /* DHD_L2_FILTER */

#if defined(SET_RPS_CPUS) || defined(ARGOS_RPS_CPU_CTL)
int dhd_rps_cpus_enable(struct net_device *net, int enable)
{
        dhd_info_t *dhd = DHD_DEV_INFO(net);
        dhd_if_t *ifp;
        int ifidx;
        char * RPS_CPU_SETBUF;

        ifidx = dhd_net2idx(dhd, net);
        if (ifidx == DHD_BAD_IF) {
                DHD_ERROR(("%s bad ifidx\n", __FUNCTION__));
                return -ENODEV;
        }

        if (ifidx == PRIMARY_INF) {
                if (dhd->pub.op_mode == DHD_FLAG_IBSS_MODE) {
                        DHD_INFO(("%s : set for IBSS.\n", __FUNCTION__));
                        RPS_CPU_SETBUF = RPS_CPUS_MASK_IBSS;
                } else {
                        DHD_INFO(("%s : set for BSS.\n", __FUNCTION__));
                        RPS_CPU_SETBUF = RPS_CPUS_MASK;
                }
        } else if (ifidx == VIRTUAL_INF) {
                DHD_INFO(("%s : set for P2P.\n", __FUNCTION__));
                RPS_CPU_SETBUF = RPS_CPUS_MASK_P2P;
        } else {
                DHD_ERROR(("%s : Invalid index : %d.\n", __FUNCTION__, ifidx));
                return -EINVAL;
        }

        ifp = dhd->iflist[ifidx];
        if (ifp) {
                if (enable) {
                        DHD_INFO(("%s : set rps_cpus as [%s]\n", __FUNCTION__, RPS_CPU_SETBUF));
                        custom_rps_map_set(ifp->net->_rx, RPS_CPU_SETBUF, strlen(RPS_CPU_SETBUF));
                } else {
                        custom_rps_map_clear(ifp->net->_rx);
                }
        } else {
                DHD_ERROR(("%s : ifp is NULL!!\n", __FUNCTION__));
                return -ENODEV;
        }
        return BCME_OK;
}

int custom_rps_map_set(struct netdev_rx_queue *queue, char *buf, size_t len)
{
        struct rps_map *old_map, *map;
        cpumask_var_t mask;
        int err, cpu, i;
        static DEFINE_SPINLOCK(rps_map_lock);

        DHD_INFO(("%s : Entered.\n", __FUNCTION__));

        if (!alloc_cpumask_var(&mask, GFP_KERNEL)) {
                DHD_ERROR(("%s : alloc_cpumask_var fail.\n", __FUNCTION__));
                return -ENOMEM;
        }

        err = bitmap_parse(buf, len, cpumask_bits(mask), nr_cpumask_bits);
        if (err) {
                free_cpumask_var(mask);
                DHD_ERROR(("%s : bitmap_parse fail.\n", __FUNCTION__));
                return err;
        }

        map = kzalloc(max_t(unsigned int,
                RPS_MAP_SIZE(cpumask_weight(mask)), L1_CACHE_BYTES),
                GFP_KERNEL);
        if (!map) {
                free_cpumask_var(mask);
                DHD_ERROR(("%s : map malloc fail.\n", __FUNCTION__));
                return -ENOMEM;
        }

        i = 0;
        for_each_cpu(cpu, mask) {
                map->cpus[i++] = cpu;
        }

        if (i) {
                map->len = i;
        } else {
                kfree(map);
                map = NULL;
                free_cpumask_var(mask);
                DHD_ERROR(("%s : mapping cpu fail.\n", __FUNCTION__));
                return -1;
        }

        spin_lock(&rps_map_lock);
        old_map = rcu_dereference_protected(queue->rps_map,
                lockdep_is_held(&rps_map_lock));
        rcu_assign_pointer(queue->rps_map, map);
        spin_unlock(&rps_map_lock);

        if (map) {
                static_key_slow_inc(&rps_needed);
        }
        if (old_map) {
                kfree_rcu(old_map, rcu);
                static_key_slow_dec(&rps_needed);
        }
        free_cpumask_var(mask);

        DHD_INFO(("%s : Done. mapping cpu nummber : %d\n", __FUNCTION__, map->len));
        return map->len;
}

void custom_rps_map_clear(struct netdev_rx_queue *queue)
{
        struct rps_map *map;

        DHD_INFO(("%s : Entered.\n", __FUNCTION__));

        map = rcu_dereference_protected(queue->rps_map, 1);
        if (map) {
                RCU_INIT_POINTER(queue->rps_map, NULL);
                kfree_rcu(map, rcu);
                DHD_INFO(("%s : rps_cpus map clear.\n", __FUNCTION__));
        }
}
#endif /* SET_RPS_CPUS || ARGOS_RPS_CPU_CTL */

#if (defined(ARGOS_CPU_SCHEDULER) && defined(ARGOS_RPS_CPU_CTL)) || \
        defined(ARGOS_NOTIFY_CB)

static int argos_status_notifier_wifi_cb(struct notifier_block *notifier,
        unsigned long speed, void *v);
static int argos_status_notifier_p2p_cb(struct notifier_block *notifier,
        unsigned long speed, void *v);
#if defined(CONFIG_SPLIT_ARGOS_SET) && defined(DYNAMIC_MUMIMO_CONTROL)
static int argos_status_notifier_config_mumimo_cb(struct notifier_block *notifier,
        unsigned long speed, void *v);
#endif /* CONFIG_SPLIT_ARGOS_SET && DYNAMIC_MUMIMO_CONTROL */

#ifdef DYNAMIC_MUMIMO_CONTROL
#define MUMIMO_CONTROL_TIMER_INTERVAL_MS        5000

void
argos_config_mumimo_timer(unsigned long data)
{
        argos_mumimo_ctrl *ctrl_data = (argos_mumimo_ctrl *)data;

        DHD_TRACE(("%s: Enter\n", __FUNCTION__));
        schedule_work(&ctrl_data->mumimo_ctrl_work);
}

void
argos_config_mumimo_handler(struct work_struct *work)
{
        argos_mumimo_ctrl *ctrl_data;
        struct net_device *dev;
        int err;
        int new_cap;

        ctrl_data = container_of(work, argos_mumimo_ctrl, mumimo_ctrl_work);

        dev = ctrl_data->dev;

        if (!dev) {
                return;
        }

        new_cap = ctrl_data->cur_murx_bfe_cap;
        err = wl_set_murx_bfe_cap(dev, new_cap, TRUE);
        if (err) {
                DHD_ERROR(("%s: Failed to set murx_bfe_cap to %d, err=%d\n",
                        __FUNCTION__, new_cap, err));
        } else {
                DHD_ERROR(("%s: Newly configured murx_bfe_cap = %d\n",
                        __FUNCTION__, new_cap));
        }
}

void
argos_status_notifier_config_mumimo(struct notifier_block *notifier,
        unsigned long speed, void *v)
{
        struct net_device *dev;
        int prev_murx_bfe_cap;
        int cap;
        dhd_info_t *dhd;

        dev = argos_mumimo_ctrl_data.dev;
        if (!dev) {
                return;
        }

        dhd = DHD_DEV_INFO(dev);
        if (!dhd) {
                return;
        }

        /* Check if STA reassociate with the AP after murx configuration */
        if (dhd->pub.reassoc_mumimo_sw) {
                /* Cancel the MU-MIMO control timer */
                if (timer_pending(&argos_mumimo_ctrl_data.config_timer)) {
                        del_timer_sync(&argos_mumimo_ctrl_data.config_timer);
                }

                DHD_ERROR(("%s: Reassociation is in progress...\n", __FUNCTION__));
                return;
        }

        /* Check if current associated AP supports MU-MIMO capability
         * or current Tput meets the condition for MU-MIMO configuration
         */
        if ((wl_check_bss_support_mumimo(dev) <= 0) ||
                ((speed < MUMIMO_TO_SUMIMO_TPUT_THRESHOLD) &&
                (speed >= SUMIMO_TO_MUMIMO_TPUT_THRESHOLD))) {
                return;
        }

        prev_murx_bfe_cap = argos_mumimo_ctrl_data.cur_murx_bfe_cap;

        /* Check the TPut condition */
        if (speed >= MUMIMO_TO_SUMIMO_TPUT_THRESHOLD) {
                cap = 0;
        } else {
                cap = 1;
        }

        if (prev_murx_bfe_cap != cap) {
                /* Cancel the MU-MIMO control timer */
                if (timer_pending(&argos_mumimo_ctrl_data.config_timer)) {
                        del_timer_sync(&argos_mumimo_ctrl_data.config_timer);
                }

                /* Update the new value */
                argos_mumimo_ctrl_data.cur_murx_bfe_cap = cap;

                /* Arm the MU-MIMO control timer */
                mod_timer(&argos_mumimo_ctrl_data.config_timer,
                        jiffies + msecs_to_jiffies(MUMIMO_CONTROL_TIMER_INTERVAL_MS));

                DHD_ERROR(("%s: Arm the MU-MIMO control timer, cur_murx_bfe_cap=%d\n",
                        __FUNCTION__, cap));
        }
}

void
argos_config_mumimo_init(struct net_device *dev)
{
        init_timer(&argos_mumimo_ctrl_data.config_timer);
        argos_mumimo_ctrl_data.config_timer.data = (unsigned long)&argos_mumimo_ctrl_data;
        argos_mumimo_ctrl_data.config_timer.function = argos_config_mumimo_timer;
        argos_mumimo_ctrl_data.dev = dev;
        INIT_WORK(&argos_mumimo_ctrl_data.mumimo_ctrl_work, argos_config_mumimo_handler);
        argos_mumimo_ctrl_data.cur_murx_bfe_cap = -1;
}

void
argos_config_mumimo_deinit(void)
{
        argos_mumimo_ctrl_data.dev = NULL;
        if (timer_pending(&argos_mumimo_ctrl_data.config_timer)) {
                del_timer_sync(&argos_mumimo_ctrl_data.config_timer);
        }

        cancel_work_sync(&argos_mumimo_ctrl_data.mumimo_ctrl_work);
}

void
argos_config_mumimo_reset(void)
{
        argos_mumimo_ctrl_data.cur_murx_bfe_cap = -1;
}
#endif /* DYNAMIC_MUMIMO_CONTROL */

int
argos_register_notifier_init(struct net_device *net)
{
        int ret = 0;

        DHD_INFO(("DHD: %s: \n", __FUNCTION__));
        argos_rps_ctrl_data.wlan_primary_netdev = net;
        argos_rps_ctrl_data.argos_rps_cpus_enabled = 0;
#ifdef DYNAMIC_MUMIMO_CONTROL
        argos_config_mumimo_init(net);
#endif /* DYNAMIC_MUMIMO_CONTROL */

        if (argos_wifi.notifier_call == NULL) {
                argos_wifi.notifier_call = argos_status_notifier_wifi_cb;
                ret = sec_argos_register_notifier(&argos_wifi, ARGOS_WIFI_TABLE_LABEL);
                if (ret < 0) {
                        DHD_ERROR(("DHD:Failed to register WIFI notifier, ret=%d\n", ret));
                        goto exit;
                }
        }

#if defined(CONFIG_SPLIT_ARGOS_SET) && defined(DYNAMIC_MUMIMO_CONTROL)
        if (argos_mimo.notifier_call == NULL) {
                argos_mimo.notifier_call = argos_status_notifier_config_mumimo_cb;
                ret = sec_argos_register_notifier(&argos_mimo, ARGOS_WIFI_TABLE_FOR_MIMO_LABEL);
                if (ret < 0) {
                        DHD_ERROR(("DHD:Failed to register WIFI for MIMO notifier, ret=%d\n", ret));
                        sec_argos_unregister_notifier(&argos_wifi, ARGOS_WIFI_TABLE_LABEL);
                        goto exit;
                }
        }
#endif /* CONFIG_SPLIT_ARGOS_SET && DYNAMIC_MUMIMO_CONTROL */

        if (argos_p2p.notifier_call == NULL) {
                argos_p2p.notifier_call = argos_status_notifier_p2p_cb;
                ret = sec_argos_register_notifier(&argos_p2p, ARGOS_P2P_TABLE_LABEL);
                if (ret < 0) {
                        DHD_ERROR(("DHD:Failed to register P2P notifier, ret=%d\n", ret));
                        sec_argos_unregister_notifier(&argos_wifi, ARGOS_WIFI_TABLE_LABEL);
#if defined(CONFIG_SPLIT_ARGOS_SET) && defined(DYNAMIC_MUMIMO_CONTROL)
                        sec_argos_unregister_notifier(&argos_mimo, ARGOS_WIFI_TABLE_FOR_MIMO_LABEL);
#endif /* CONFIG_SPLIT_ARGOS_SET && DYNAMIC_MUMIMO_CONTROL */
                        goto exit;
                }
        }

        return 0;

exit:
        if (argos_wifi.notifier_call) {
                argos_wifi.notifier_call = NULL;
        }

#if defined(CONFIG_SPLIT_ARGOS_SET) && defined(DYNAMIC_MUMIMO_CONTROL)
        if (argos_mimo.notifier_call) {
                argos_mimo.notifier_call = NULL;
        }
#endif /* CONFIG_SPLIT_ARGOS_SET && DYNAMIC_MUMIMO_CONTROL */

        if (argos_p2p.notifier_call) {
                argos_p2p.notifier_call = NULL;
        }

        return ret;
}

int
argos_register_notifier_deinit(void)
{
        DHD_INFO(("DHD: %s: \n", __FUNCTION__));

        if (argos_rps_ctrl_data.wlan_primary_netdev == NULL) {
                DHD_ERROR(("DHD: primary_net_dev is null %s: \n", __FUNCTION__));
                return -1;
        }

#ifdef DYNAMIC_MUMIMO_CONTROL
        argos_config_mumimo_deinit();
#endif /* DYNAMIC_MUMIMO_CONTROL */

#if !defined(DHD_LB) && defined(ARGOS_RPS_CPU_CTL)
        custom_rps_map_clear(argos_rps_ctrl_data.wlan_primary_netdev->_rx);
#endif /* !DHD_LB && ARGOS_RPS_CPU_CTL */

        if (argos_p2p.notifier_call) {
                sec_argos_unregister_notifier(&argos_p2p, ARGOS_P2P_TABLE_LABEL);
                argos_p2p.notifier_call = NULL;
        }

#if defined(CONFIG_SPLIT_ARGOS_SET) && defined(DYNAMIC_MUMIMO_CONTROL)
        if (argos_mimo.notifier_call) {
                sec_argos_unregister_notifier(&argos_mimo, ARGOS_WIFI_TABLE_FOR_MIMO_LABEL);
                argos_mimo.notifier_call = NULL;
        }
#endif /* CONFIG_SPLIT_ARGOS_SET && DYNAMIC_MUMIMO_CONTROL */

        if (argos_wifi.notifier_call) {
                sec_argos_unregister_notifier(&argos_wifi, ARGOS_WIFI_TABLE_LABEL);
                argos_wifi.notifier_call = NULL;
        }

        argos_rps_ctrl_data.wlan_primary_netdev = NULL;
        argos_rps_ctrl_data.argos_rps_cpus_enabled = 0;

        return 0;
}

int
argos_status_notifier_cb(struct notifier_block *notifier,
        unsigned long speed, void *v)
{
        dhd_info_t *dhd;
        dhd_pub_t *dhdp;

        DHD_INFO(("DHD: %s: speed=%ld\n", __FUNCTION__, speed));

        if (argos_rps_ctrl_data.wlan_primary_netdev == NULL) {
                goto exit;
        }

        dhd = DHD_DEV_INFO(argos_rps_ctrl_data.wlan_primary_netdev);
        if (dhd == NULL) {
                goto exit;
        }

        dhdp = &dhd->pub;
        if (dhdp == NULL || !dhdp->up) {
                goto exit;
        }
        /* Check if reported TPut value is more than threshold value */
        if (speed > RPS_TPUT_THRESHOLD) {
                if (argos_rps_ctrl_data.argos_rps_cpus_enabled == 0) {
                        /* It does not need to configre rps_cpus
                         * if Load Balance is enabled
                         */
#if !defined(DHD_LB) && defined(ARGOS_RPS_CPU_CTL)
                        int err = 0;

                        if (cpu_online(RPS_CPUS_WLAN_CORE_ID)) {
                                err = custom_rps_map_set(
                                        argos_rps_ctrl_data.wlan_primary_netdev->_rx,
                                        RPS_CPUS_MASK, strlen(RPS_CPUS_MASK));
                        } else {
                                DHD_ERROR(("DHD: %s: RPS_Set fail,"
                                        " Core=%d Offline\n", __FUNCTION__,
                                        RPS_CPUS_WLAN_CORE_ID));
                                err = -1;
                        }

                        if (err < 0) {
                                DHD_ERROR(("DHD: %s: Failed to RPS_CPUs. "
                                        "speed=%ld, error=%d\n",
                                        __FUNCTION__, speed, err));
                        } else {
#endif /* !DHD_LB && ARGOS_RPS_CPU_CTL */
#if defined(DHDTCPACK_SUPPRESS) && defined(BCMPCIE)
                                if (dhdp->tcpack_sup_mode != TCPACK_SUP_HOLD) {
                                        DHD_ERROR(("%s : set ack suppress. TCPACK_SUP_ON(%d)\n",
                                                __FUNCTION__, TCPACK_SUP_HOLD));
                                        dhd_tcpack_suppress_set(dhdp, TCPACK_SUP_HOLD);
                                }
#endif /* DHDTCPACK_SUPPRESS && BCMPCIE */
                                argos_rps_ctrl_data.argos_rps_cpus_enabled = 1;
#if !defined(DHD_LB) && defined(ARGOS_RPS_CPU_CTL)
                                DHD_ERROR(("DHD: %s: Set RPS_CPUs, speed=%ld\n",
                                        __FUNCTION__, speed));
                        }
#endif /* !DHD_LB && ARGOS_RPS_CPU_CTL */
                }
        } else {
                if (argos_rps_ctrl_data.argos_rps_cpus_enabled == 1) {
#if defined(DHDTCPACK_SUPPRESS) && defined(BCMPCIE)
                        if (dhdp->tcpack_sup_mode != TCPACK_SUP_OFF) {
                                DHD_ERROR(("%s : set ack suppress. TCPACK_SUP_OFF\n",
                                        __FUNCTION__));
                                dhd_tcpack_suppress_set(dhdp, TCPACK_SUP_OFF);
                        }
#endif /* DHDTCPACK_SUPPRESS && BCMPCIE */
#if !defined(DHD_LB) && defined(ARGOS_RPS_CPU_CTL)
                        /* It does not need to configre rps_cpus
                         * if Load Balance is enabled
                         */
                        custom_rps_map_clear(argos_rps_ctrl_data.wlan_primary_netdev->_rx);
                        DHD_ERROR(("DHD: %s: Clear RPS_CPUs, speed=%ld\n", __FUNCTION__, speed));
                        OSL_SLEEP(DELAY_TO_CLEAR_RPS_CPUS);
#endif /* !DHD_LB && ARGOS_RPS_CPU_CTL */
                        argos_rps_ctrl_data.argos_rps_cpus_enabled = 0;
                }
        }

exit:
        return NOTIFY_OK;
}

int
argos_status_notifier_wifi_cb(struct notifier_block *notifier,
        unsigned long speed, void *v)
{
        DHD_INFO(("DHD: %s: speed=%ld\n", __FUNCTION__, speed));
        argos_status_notifier_cb(notifier, speed, v);
#if !defined(CONFIG_SPLIT_ARGOS_SET) && defined(DYNAMIC_MUMIMO_CONTROL)
        argos_status_notifier_config_mumimo(notifier, speed, v);
#endif /* !CONFIG_SPLIT_ARGOS_SET && DYNAMIC_MUMIMO_CONTROL */

        return NOTIFY_OK;
}

#if defined(CONFIG_SPLIT_ARGOS_SET) && defined(DYNAMIC_MUMIMO_CONTROL)
int
argos_status_notifier_config_mumimo_cb(struct notifier_block *notifier,
        unsigned long speed, void *v)
{
        DHD_INFO(("DHD: %s: speed=%ld\n", __FUNCTION__, speed));
        argos_status_notifier_config_mumimo(notifier, speed, v);

        return NOTIFY_OK;
}
#endif /* CONFIG_SPLIT_ARGOS_SET && DYNAMIC_MUMIMO_CONTROL */

int
argos_status_notifier_p2p_cb(struct notifier_block *notifier,
        unsigned long speed, void *v)
{
        DHD_INFO(("DHD: %s: speed=%ld\n", __FUNCTION__, speed));
        argos_status_notifier_cb(notifier, speed, v);

        return NOTIFY_OK;
}
#endif /* (ARGOS_CPU_SCHEDULER && ARGOS_RPS_CPU_CTL) || ARGOS_NOTIFY_CB */

#ifdef DHD_DEBUG_PAGEALLOC

void
dhd_page_corrupt_cb(void *handle, void *addr_corrupt, size_t len)
{
        dhd_pub_t *dhdp = (dhd_pub_t *)handle;

        DHD_ERROR(("%s: Got dhd_page_corrupt_cb 0x%p %d\n",
                __FUNCTION__, addr_corrupt, (uint32)len));

        DHD_OS_WAKE_LOCK(dhdp);
        prhex("Page Corruption:", addr_corrupt, len);
        dhd_dump_to_kernelog(dhdp);
#if defined(BCMPCIE) && defined(DHD_FW_COREDUMP)
        /* Load the dongle side dump to host memory and then BUG_ON() */
        dhdp->memdump_enabled = DUMP_MEMONLY;
        dhdp->memdump_type = DUMP_TYPE_MEMORY_CORRUPTION;
        dhd_bus_mem_dump(dhdp);
#endif /* BCMPCIE && DHD_FW_COREDUMP */
        DHD_OS_WAKE_UNLOCK(dhdp);
}
EXPORT_SYMBOL(dhd_page_corrupt_cb);
#endif /* DHD_DEBUG_PAGEALLOC */

#if defined(BCMPCIE) && defined(DHD_PKTID_AUDIT_ENABLED)
void
dhd_pktid_error_handler(dhd_pub_t *dhdp)
{
        DHD_ERROR(("%s: Got Pkt Id Audit failure \n", __FUNCTION__));
        DHD_OS_WAKE_LOCK(dhdp);
        dhd_dump_to_kernelog(dhdp);
#ifdef DHD_FW_COREDUMP
        /* Load the dongle side dump to host memory */
        if (dhdp->memdump_enabled == DUMP_DISABLED) {
                dhdp->memdump_enabled = DUMP_MEMFILE;
        }
        dhdp->memdump_type = DUMP_TYPE_PKTID_AUDIT_FAILURE;
        dhd_bus_mem_dump(dhdp);
#endif /* DHD_FW_COREDUMP */
        dhdp->hang_reason = HANG_REASON_PCIE_PKTID_ERROR;
        dhd_os_check_hang(dhdp, 0, -EREMOTEIO);
        DHD_OS_WAKE_UNLOCK(dhdp);
}
#endif /* BCMPCIE && DHD_PKTID_AUDIT_ENABLED */

struct net_device *
dhd_linux_get_primary_netdev(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd = dhdp->info;

        if (dhd->iflist[0] && dhd->iflist[0]->net)
                return dhd->iflist[0]->net;
        else
                return NULL;
}

#ifdef DHD_DHCP_DUMP
static void
dhd_dhcp_dump(char *ifname, uint8 *pktdata, bool tx)
{
        struct bootp_fmt *b = (struct bootp_fmt *) &pktdata[ETHER_HDR_LEN];
        struct iphdr *h = &b->ip_header;
        uint8 *ptr, *opt, *end = (uint8 *) b + ntohs(b->ip_header.tot_len);
        int dhcp_type = 0, len, opt_len;

        /* check IP header */
        if (h->ihl != 5 || h->version != 4 || h->protocol != IPPROTO_UDP) {
                return;
        }

        /* check UDP port for bootp (67, 68) */
        if (b->udp_header.source != htons(67) && b->udp_header.source != htons(68) &&
                        b->udp_header.dest != htons(67) && b->udp_header.dest != htons(68)) {
                return;
        }

        /* check header length */
        if (ntohs(h->tot_len) < ntohs(b->udp_header.len) + sizeof(struct iphdr)) {
                return;
        }

        len = ntohs(b->udp_header.len) - sizeof(struct udphdr);
        opt_len = len
                - (sizeof(*b) - sizeof(struct iphdr) - sizeof(struct udphdr) - sizeof(b->options));

        /* parse bootp options */
        if (opt_len >= 4 && !memcmp(b->options, bootp_magic_cookie, 4)) {
                ptr = &b->options[4];
                while (ptr < end && *ptr != 0xff) {
                        opt = ptr++;
                        if (*opt == 0) {
                                continue;
                        }
                        ptr += *ptr + 1;
                        if (ptr >= end) {
                                break;
                        }
                        /* 53 is dhcp type */
                        if (*opt == 53) {
                                if (opt[1]) {
                                        dhcp_type = opt[2];
                                        DHD_ERROR(("DHCP[%s] - %s [%s] [%s]\n",
                                                ifname, dhcp_types[dhcp_type],
                                                tx ? "TX" : "RX", dhcp_ops[b->op]));
                                        break;
                                }
                        }
                }
        }
}
#endif /* DHD_DHCP_DUMP */

#ifdef DHD_ICMP_DUMP
static void
dhd_icmp_dump(char *ifname, uint8 *pktdata, bool tx)
{
        uint8 *pkt = (uint8 *)&pktdata[ETHER_HDR_LEN];
        struct iphdr *iph = (struct iphdr *)pkt;
        struct icmphdr *icmph;

        /* check IP header */
        if (iph->ihl != 5 || iph->version != 4 || iph->protocol != IP_PROT_ICMP) {
                return;
        }

        icmph = (struct icmphdr *)((uint8 *)pkt + sizeof(struct iphdr));
        if (icmph->type == ICMP_ECHO) {
                DHD_ERROR_MEM(("PING REQUEST[%s] [%s] : SEQNUM=%d\n",
                        ifname, tx ? "TX" : "RX", ntoh16(icmph->un.echo.sequence)));
        } else if (icmph->type == ICMP_ECHOREPLY) {
                DHD_ERROR_MEM(("PING REPLY[%s] [%s] : SEQNUM=%d\n",
                        ifname, tx ? "TX" : "RX", ntoh16(icmph->un.echo.sequence)));
        } else {
                DHD_ERROR_MEM(("ICMP [%s] [%s] : TYPE=%d, CODE=%d\n",
                        ifname, tx ? "TX" : "RX", icmph->type, icmph->code));
        }
}
#endif /* DHD_ICMP_DUMP */

#ifdef SHOW_LOGTRACE
void
dhd_get_read_buf_ptr(dhd_pub_t *dhd_pub, trace_buf_info_t *trace_buf_info)
{
        dhd_dbg_ring_status_t ring_status;
        uint32 rlen = 0;
#if defined(DEBUGABILITY)
        rlen = dhd_dbg_pull_single_from_ring(dhd_pub, FW_VERBOSE_RING_ID, trace_buf_info->buf,
                TRACE_LOG_BUF_MAX_SIZE, TRUE);
#elif defined(DEBUGABILITY_ECNTRS_LOGGING)
        rlen = dhd_dbg_ring_pull_single(dhd_pub->ecntr_dbg_ring, trace_buf_info->buf,
                TRACE_LOG_BUF_MAX_SIZE, TRUE);
#else
        ASSERT(0);
#endif /* DEBUGABILITY */

        trace_buf_info->size = rlen;
        trace_buf_info->availability = NEXT_BUF_NOT_AVAIL;
        if (rlen == 0) {
                trace_buf_info->availability = BUF_NOT_AVAILABLE;
                return;
        }
        dhd_dbg_get_ring_status(dhd_pub, FW_VERBOSE_RING_ID, &ring_status);
        if (ring_status.written_bytes != ring_status.read_bytes) {
                trace_buf_info->availability = NEXT_BUF_AVAIL;
        }
}
#endif /* SHOW_LOGTRACE */

bool
dhd_fw_download_status(dhd_pub_t * dhd_pub)
{
        return dhd_pub->fw_download_done;
}

int
dhd_create_to_notifier_skt(void)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0))
        /* Kernel 3.7 onwards this API accepts only 3 arguments. */
        /* Kernel version 3.6 is a special case which accepts 4 arguments */
        nl_to_event_sk = netlink_kernel_create(&init_net, BCM_NL_USER, &dhd_netlink_cfg);
#elif (LINUX_VERSION_CODE < KERNEL_VERSION(3, 6, 0))
        /* Kernel version 3.5 and below use this old API format */
        nl_to_event_sk = netlink_kernel_create(&init_net, BCM_NL_USER, 0,
                        dhd_process_daemon_msg, NULL, THIS_MODULE);
#else
        nl_to_event_sk = netlink_kernel_create(&init_net, BCM_NL_USER, THIS_MODULE,
                        &dhd_netlink_cfg);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0)) */
        if (!nl_to_event_sk)
        {
                printf("Error creating socket.\n");
                return -1;
        }
        DHD_INFO(("nl_to socket created successfully...\n"));
        return 0;
}

void
dhd_destroy_to_notifier_skt(void)
{
        DHD_INFO(("Destroying nl_to socket\n"));
        netlink_kernel_release(nl_to_event_sk);
}

static void
dhd_recv_msg_from_daemon(struct sk_buff *skb)
{
        struct nlmsghdr *nlh;
        bcm_to_info_t *cmd;

        nlh = (struct nlmsghdr *)skb->data;
        cmd = (bcm_to_info_t *)nlmsg_data(nlh);
        if ((cmd->magic == BCM_TO_MAGIC) && (cmd->reason == REASON_DAEMON_STARTED)) {
                sender_pid = ((struct nlmsghdr *)(skb->data))->nlmsg_pid;
                DHD_INFO(("DHD Daemon Started\n"));
        }
}

int
dhd_send_msg_to_daemon(struct sk_buff *skb, void *data, int size)
{
        struct nlmsghdr *nlh;
        struct sk_buff *skb_out;

        BCM_REFERENCE(skb);
        if (sender_pid == 0) {
                DHD_INFO(("Invalid PID 0\n"));
                return -1;
        }

        if ((skb_out = nlmsg_new(size, 0)) == NULL) {
                DHD_ERROR(("%s: skb alloc failed\n", __FUNCTION__));
                return -1;
        }
        nlh = nlmsg_put(skb_out, 0, 0, NLMSG_DONE, size, 0);
        NETLINK_CB(skb_out).dst_group = 0; /* Unicast */
        memcpy(nlmsg_data(nlh), (char *)data, size);

        if ((nlmsg_unicast(nl_to_event_sk, skb_out, sender_pid)) < 0) {
                DHD_INFO(("Error sending message\n"));
        }
        return 0;
}

static void
dhd_process_daemon_msg(struct sk_buff *skb)
{
        bcm_to_info_t to_info;

        to_info.magic = BCM_TO_MAGIC;
        to_info.reason = REASON_DAEMON_STARTED;
        to_info.trap = NO_TRAP;

        dhd_recv_msg_from_daemon(skb);
        dhd_send_msg_to_daemon(skb, &to_info, sizeof(to_info));
}

#ifdef DHD_LOG_DUMP
bool
dhd_log_dump_ecntr_enabled(void)
{
        return (bool)logdump_ecntr_enable;
}

void
dhd_log_dump_init(dhd_pub_t *dhd)
{
        struct dhd_log_dump_buf *dld_buf, *dld_buf_special;
        int i = 0;
        uint8 *prealloc_buf = NULL, *bufptr = NULL;
#if defined(CONFIG_DHD_USE_STATIC_BUF) && defined(DHD_USE_STATIC_MEMDUMP)
        int prealloc_idx = DHD_PREALLOC_DHD_LOG_DUMP_BUF;
#endif /* CONFIG_DHD_USE_STATIC_BUF && DHD_USE_STATIC_MEMDUMP */
        int ret;
        dhd_dbg_ring_t *ring = NULL;
        unsigned long flags = 0;
        dhd_info_t *dhd_info = dhd->info;
        void *cookie_buf = NULL;

        BCM_REFERENCE(ret);
        BCM_REFERENCE(ring);
        BCM_REFERENCE(flags);

        /* sanity check */
        if (logdump_prsrv_tailsize <= 0 ||
                logdump_prsrv_tailsize > DHD_LOG_DUMP_MAX_TAIL_FLUSH_SIZE) {
                logdump_prsrv_tailsize = DHD_LOG_DUMP_MAX_TAIL_FLUSH_SIZE;
        }
        /* now adjust the preserve log flush size based on the
        * kernel printk log buffer size
        */
#ifdef CONFIG_LOG_BUF_SHIFT
        DHD_ERROR(("%s: kernel log buf size = %uKB; logdump_prsrv_tailsize = %uKB;"
                " limit prsrv tail size to = %uKB\n",
                __FUNCTION__, (1 << CONFIG_LOG_BUF_SHIFT)/1024,
                logdump_prsrv_tailsize/1024, LOG_DUMP_KERNEL_TAIL_FLUSH_SIZE/1024));

        if (logdump_prsrv_tailsize > LOG_DUMP_KERNEL_TAIL_FLUSH_SIZE) {
                logdump_prsrv_tailsize = LOG_DUMP_KERNEL_TAIL_FLUSH_SIZE;
        }
#else
        DHD_ERROR(("%s: logdump_prsrv_tailsize = %uKB \n",
                __FUNCTION__, logdump_prsrv_tailsize/1024);
#endif /* CONFIG_LOG_BUF_SHIFT */

        mutex_init(&dhd_info->logdump_lock);

        /* initialize log dump buf structures */
        memset(g_dld_buf, 0, sizeof(struct dhd_log_dump_buf) * DLD_BUFFER_NUM);

        /* set the log dump buffer size based on the module_param */
        if (logdump_max_bufsize > LOG_DUMP_GENERAL_MAX_BUFSIZE ||
                        logdump_max_bufsize <= 0)
                dld_buf_size[DLD_BUF_TYPE_GENERAL] = LOG_DUMP_GENERAL_MAX_BUFSIZE;
        else
                dld_buf_size[DLD_BUF_TYPE_GENERAL] = logdump_max_bufsize;

        /* pre-alloc the memory for the log buffers & 'special' buffer */
        dld_buf_special = &g_dld_buf[DLD_BUF_TYPE_SPECIAL];
#if defined(CONFIG_DHD_USE_STATIC_BUF) && defined(DHD_USE_STATIC_MEMDUMP)
        DHD_ERROR(("%s : Try to allocate memory total(%d) special(%d)\n",
                __FUNCTION__, LOG_DUMP_TOTAL_BUFSIZE, LOG_DUMP_SPECIAL_MAX_BUFSIZE));
        prealloc_buf = DHD_OS_PREALLOC(dhd, prealloc_idx++, LOG_DUMP_TOTAL_BUFSIZE);
        dld_buf_special->buffer = DHD_OS_PREALLOC(dhd, prealloc_idx++,
                        dld_buf_size[DLD_BUF_TYPE_SPECIAL]);
#else
        prealloc_buf = MALLOCZ(dhd->osh, LOG_DUMP_TOTAL_BUFSIZE);
        dld_buf_special->buffer = MALLOCZ(dhd->osh, dld_buf_size[DLD_BUF_TYPE_SPECIAL]);
#endif /* CONFIG_DHD_USE_STATIC_BUF && DHD_USE_STATIC_MEMDUMP */
        if (!prealloc_buf) {
                DHD_ERROR(("Failed to pre-allocate memory for log buffers !\n"));
                goto fail;
        }
        if (!dld_buf_special->buffer) {
                DHD_ERROR(("Failed to pre-allocate memory for special buffer !\n"));
                goto fail;
        }

        bufptr = prealloc_buf;
        for (i = 0; i < DLD_BUFFER_NUM; i++) {
                dld_buf = &g_dld_buf[i];
                dld_buf->dhd_pub = dhd;
                spin_lock_init(&dld_buf->lock);
                dld_buf->wraparound = 0;
                if (i != DLD_BUF_TYPE_SPECIAL) {
                        dld_buf->buffer = bufptr;
                        dld_buf->max = (unsigned long)dld_buf->buffer + dld_buf_size[i];
                        bufptr = (uint8 *)dld_buf->max;
                } else {
                        dld_buf->max = (unsigned long)dld_buf->buffer + dld_buf_size[i];
                }
                dld_buf->present = dld_buf->front = dld_buf->buffer;
                dld_buf->remain = dld_buf_size[i];
                dld_buf->enable = 1;
        }

#ifdef DEBUGABILITY_ECNTRS_LOGGING
        /* now use the rest of the pre-alloc'd memory for filter and ecounter log */
        dhd->ecntr_dbg_ring = MALLOCZ(dhd->osh, sizeof(dhd_dbg_ring_t));
        if (!dhd->ecntr_dbg_ring)
                goto fail;

        ring = (dhd_dbg_ring_t *)dhd->ecntr_dbg_ring;
        ret = dhd_dbg_ring_init(dhd, ring, ECNTR_RING_ID,
                        ECNTR_RING_NAME, LOG_DUMP_ECNTRS_MAX_BUFSIZE,
                        bufptr);
        if (ret != BCME_OK) {
                DHD_ERROR(("%s: unable to init ecntr ring !\n",
                                __FUNCTION__));
                goto fail;
        }
        DHD_DBG_RING_LOCK(ring->lock, flags);
        ring->state = RING_ACTIVE;
        ring->threshold = 0;
        DHD_DBG_RING_UNLOCK(ring->lock, flags);

        bufptr += LOG_DUMP_ECNTRS_MAX_BUFSIZE;
#endif /* DEBUGABILITY_ECNTRS_LOGGING */

        /* Concise buffer is used as intermediate buffer for following purposes
        * a) pull ecounters records temporarily before
        *  writing it to file
        * b) to store dhd dump data before putting it to file
        * It should have a size equal to
        * MAX(largest possible ecntr record, 'dhd dump' data size)
        */
        dhd->concise_dbg_buf = MALLOC(dhd->osh, CONCISE_DUMP_BUFLEN);
        if (!dhd->concise_dbg_buf) {
                DHD_ERROR(("%s: unable to alloc mem for concise debug info !\n",
                                __FUNCTION__));
                goto fail;
        }

#if defined(DHD_EVENT_LOG_FILTER)
        ret = dhd_event_log_filter_init(dhd,
                bufptr,
                LOG_DUMP_FILTER_MAX_BUFSIZE);
        if (ret != BCME_OK) {
                goto fail;
        }
#endif /* DHD_EVENT_LOG_FILTER */

        cookie_buf = MALLOC(dhd->osh, LOG_DUMP_COOKIE_BUFSIZE);
        if (!cookie_buf) {
                DHD_ERROR(("%s: unable to alloc mem for logdump cookie buffer\n",
                        __FUNCTION__));
                goto fail;
        }
        ret = dhd_logdump_cookie_init(dhd, cookie_buf, LOG_DUMP_COOKIE_BUFSIZE);
        if (ret != BCME_OK) {
                MFREE(dhd->osh, cookie_buf, LOG_DUMP_COOKIE_BUFSIZE);
                goto fail;
        }
        return;

fail:

        if (dhd->logdump_cookie) {
                dhd_logdump_cookie_deinit(dhd);
                MFREE(dhd->osh, dhd->logdump_cookie, LOG_DUMP_COOKIE_BUFSIZE);
                dhd->logdump_cookie = NULL;
        }
#if defined(DHD_EVENT_LOG_FILTER)
        if (dhd->event_log_filter) {
                dhd_event_log_filter_deinit(dhd);
        }
#endif /* DHD_EVENT_LOG_FILTER */

        if (dhd->concise_dbg_buf) {
                MFREE(dhd->osh, dhd->concise_dbg_buf, CONCISE_DUMP_BUFLEN);
        }

#ifdef DEBUGABILITY_ECNTRS_LOGGING
        if (dhd->ecntr_dbg_ring) {
                ring = (dhd_dbg_ring_t *)dhd->ecntr_dbg_ring;
                dhd_dbg_ring_deinit(dhd, ring);
                ring->ring_buf = NULL;
                ring->ring_size = 0;
                MFREE(dhd->osh, ring, sizeof(dhd_dbg_ring_t));
                dhd->ecntr_dbg_ring = NULL;
        }
#endif /* DEBUGABILITY_ECNTRS_LOGGING */

#if defined(CONFIG_DHD_USE_STATIC_BUF) && defined(DHD_USE_STATIC_MEMDUMP)
        if (prealloc_buf) {
                DHD_OS_PREFREE(dhd, prealloc_buf, LOG_DUMP_TOTAL_BUFSIZE);
        }
        if (dld_buf_special->buffer) {
                DHD_OS_PREFREE(dhd, dld_buf_special->buffer,
                                dld_buf_size[DLD_BUF_TYPE_SPECIAL]);
        }
#else
        if (prealloc_buf) {
                MFREE(dhd->osh, prealloc_buf, LOG_DUMP_TOTAL_BUFSIZE);
        }
        if (dld_buf_special->buffer) {
                MFREE(dhd->osh, dld_buf_special->buffer,
                                dld_buf_size[DLD_BUF_TYPE_SPECIAL]);
        }
#endif /* CONFIG_DHD_USE_STATIC_BUF */
        for (i = 0; i < DLD_BUFFER_NUM; i++) {
                dld_buf = &g_dld_buf[i];
                dld_buf->enable = 0;
                dld_buf->buffer = NULL;
        }

        mutex_destroy(&dhd_info->logdump_lock);
}

void
dhd_log_dump_deinit(dhd_pub_t *dhd)
{
        struct dhd_log_dump_buf *dld_buf = NULL, *dld_buf_special = NULL;
        int i = 0;
        dhd_info_t *dhd_info = dhd->info;
        dhd_dbg_ring_t *ring = NULL;

        BCM_REFERENCE(ring);

        if (dhd->concise_dbg_buf) {
                MFREE(dhd->osh, dhd->concise_dbg_buf, CONCISE_DUMP_BUFLEN);
                dhd->concise_dbg_buf = NULL;
        }

        if (dhd->logdump_cookie) {
                dhd_logdump_cookie_deinit(dhd);
                MFREE(dhd->osh, dhd->logdump_cookie, LOG_DUMP_COOKIE_BUFSIZE);
                dhd->logdump_cookie = NULL;
        }

#if defined(DHD_EVENT_LOG_FILTER)
        if (dhd->event_log_filter) {
                dhd_event_log_filter_deinit(dhd);
        }
#endif /* DHD_EVENT_LOG_FILTER */

#ifdef DEBUGABILITY_ECNTRS_LOGGING
        if (dhd->ecntr_dbg_ring) {
                ring = (dhd_dbg_ring_t *)dhd->ecntr_dbg_ring;
                dhd_dbg_ring_deinit(dhd, ring);
                ring->ring_buf = NULL;
                ring->ring_size = 0;
                MFREE(dhd->osh, ring, sizeof(dhd_dbg_ring_t));
                dhd->ecntr_dbg_ring = NULL;
        }
#endif /* DEBUGABILITY_ECNTRS_LOGGING */

        /* 'general' buffer points to start of the pre-alloc'd memory */
        dld_buf = &g_dld_buf[DLD_BUF_TYPE_GENERAL];
        dld_buf_special = &g_dld_buf[DLD_BUF_TYPE_SPECIAL];
#if defined(CONFIG_DHD_USE_STATIC_BUF) && defined(DHD_USE_STATIC_MEMDUMP)
        if (dld_buf->buffer) {
                DHD_OS_PREFREE(dhd, dld_buf->buffer, LOG_DUMP_TOTAL_BUFSIZE);
        }
        if (dld_buf_special->buffer) {
                DHD_OS_PREFREE(dhd, dld_buf_special->buffer,
                                dld_buf_size[DLD_BUF_TYPE_SPECIAL]);
        }
#else
        if (dld_buf->buffer) {
                MFREE(dhd->osh, dld_buf->buffer, LOG_DUMP_TOTAL_BUFSIZE);
        }
        if (dld_buf_special->buffer) {
                MFREE(dhd->osh, dld_buf_special->buffer,
                                dld_buf_size[DLD_BUF_TYPE_SPECIAL]);
        }
#endif /* CONFIG_DHD_USE_STATIC_BUF */
        for (i = 0; i < DLD_BUFFER_NUM; i++) {
                dld_buf = &g_dld_buf[i];
                dld_buf->enable = 0;
                dld_buf->buffer = NULL;
        }

        mutex_destroy(&dhd_info->logdump_lock);
}

void
dhd_log_dump_write(int type, char *binary_data,
                int binary_len, const char *fmt, ...)
{
        int len = 0;
        char tmp_buf[DHD_LOG_DUMP_MAX_TEMP_BUFFER_SIZE] = {0, };
        va_list args;
        unsigned long flags = 0;
        struct dhd_log_dump_buf *dld_buf = NULL;
        bool flush_log = FALSE;

        if (type < 0 || type >= DLD_BUFFER_NUM) {
                DHD_INFO(("%s: Unknown DHD_LOG_DUMP_BUF_TYPE(%d).\n",
                        __FUNCTION__, type));
                return;
        }

        dld_buf = &g_dld_buf[type];

        if (dld_buf->enable != 1) {
                return;
        }

        va_start(args, fmt);
        len = vsnprintf(tmp_buf, DHD_LOG_DUMP_MAX_TEMP_BUFFER_SIZE, fmt, args);
        /* Non ANSI C99 compliant returns -1,
         * ANSI compliant return len >= DHD_LOG_DUMP_MAX_TEMP_BUFFER_SIZE
         */
        va_end(args);
        if (len < 0) {
                return;
        }

        if (len >= DHD_LOG_DUMP_MAX_TEMP_BUFFER_SIZE) {
                len = DHD_LOG_DUMP_MAX_TEMP_BUFFER_SIZE - 1;
                tmp_buf[len] = '\0';
        }

        /* make a critical section to eliminate race conditions */
        spin_lock_irqsave(&dld_buf->lock, flags);
        if (dld_buf->remain < len) {
                dld_buf->wraparound = 1;
                dld_buf->present = dld_buf->front;
                dld_buf->remain = dld_buf_size[type];
                /* if wrap around happens, flush the ring buffer to the file */
                flush_log = TRUE;
        }

        memcpy(dld_buf->present, tmp_buf, len);
        dld_buf->remain -= len;
        dld_buf->present += len;
        spin_unlock_irqrestore(&dld_buf->lock, flags);

        /* double check invalid memory operation */
        ASSERT((unsigned long)dld_buf->present <= dld_buf->max);

        if (dld_buf->dhd_pub) {
                dhd_pub_t *dhdp = (dhd_pub_t *)dld_buf->dhd_pub;
                dhdp->logdump_periodic_flush =
                        logdump_periodic_flush;
                if (logdump_periodic_flush && flush_log) {
                        log_dump_type_t *flush_type = MALLOCZ(dhdp->osh,
                                        sizeof(log_dump_type_t));
                        if (flush_type) {
                                *flush_type = type;
                                dhd_schedule_log_dump(dld_buf->dhd_pub, flush_type);
                        }
                }
        }
}

char*
dhd_log_dump_get_timestamp(void)
{
        static char buf[16];
        u64 ts_nsec;
        unsigned long rem_nsec;

        ts_nsec = local_clock();
        rem_nsec = DIV_AND_MOD_U64_BY_U32(ts_nsec, NSEC_PER_SEC);
        snprintf(buf, sizeof(buf), "%5lu.%06lu",
                (unsigned long)ts_nsec, rem_nsec / NSEC_PER_USEC);

        return buf;
}
#endif /* DHD_LOG_DUMP */

#ifdef DHD_PCIE_NATIVE_RUNTIMEPM
void
dhd_flush_rx_tx_wq(dhd_pub_t *dhdp)
{
        dhd_info_t * dhd;

        if (dhdp) {
                dhd = dhdp->info;
                if (dhd) {
                        flush_workqueue(dhd->tx_wq);
                        flush_workqueue(dhd->rx_wq);
                }
        }

        return;
}
#endif /* DHD_PCIE_NATIVE_RUNTIMEPM */

#ifdef DHD_LB_TXP
#define DHD_LB_TXBOUND  64
/*
 * Function that performs the TX processing on a given CPU
 */
bool
dhd_lb_tx_process(dhd_info_t *dhd)
{
        struct sk_buff *skb;
        int cnt = 0;
        struct net_device *net;
        int ifidx;
        bool resched = FALSE;

        DHD_TRACE(("%s(): TX Processing \r\n", __FUNCTION__));
        if (dhd == NULL) {
                DHD_ERROR((" Null pointer DHD \r\n"));
                return resched;
        }

        BCM_REFERENCE(net);

        DHD_LB_STATS_PERCPU_ARR_INCR(dhd->txp_percpu_run_cnt);

        /* Base Loop to perform the actual Tx */
        do {
                skb = skb_dequeue(&dhd->tx_pend_queue);
                if (skb == NULL) {
                        DHD_TRACE(("Dequeued a Null Packet \r\n"));
                        break;
                }
                cnt++;

                net =  DHD_LB_TX_PKTTAG_NETDEV((dhd_tx_lb_pkttag_fr_t *)PKTTAG(skb));
                ifidx = DHD_LB_TX_PKTTAG_IFIDX((dhd_tx_lb_pkttag_fr_t *)PKTTAG(skb));

                DHD_TRACE(("Processing skb %p for net %p index %d \r\n", skb,
                        net, ifidx));

                __dhd_sendpkt(&dhd->pub, ifidx, skb);

                if (cnt >= DHD_LB_TXBOUND) {
                        resched = TRUE;
                        break;
                }

        } while (1);

        DHD_INFO(("%s(): Processed %d packets \r\n", __FUNCTION__, cnt));

        return resched;
}

void
dhd_lb_tx_handler(unsigned long data)
{
        dhd_info_t *dhd = (dhd_info_t *)data;

        if (dhd_lb_tx_process(dhd)) {
                dhd_tasklet_schedule(&dhd->tx_tasklet);
        }
}

#endif /* DHD_LB_TXP */

#ifdef DHD_DEBUG_UART
bool
dhd_debug_uart_is_running(struct net_device *dev)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);

        if (dhd->duart_execute) {
                return TRUE;
        }

        return FALSE;
}

static void
dhd_debug_uart_exec_rd(void *handle, void *event_info, u8 event)
{
        dhd_pub_t *dhdp = handle;
        dhd_debug_uart_exec(dhdp, "rd");
}

static void
dhd_debug_uart_exec(dhd_pub_t *dhdp, char *cmd)
{
        int ret;

        char *argv[] = {DHD_DEBUG_UART_EXEC_PATH, cmd, NULL};
        char *envp[] = {"HOME=/", "TERM=linux", "PATH=/sbin:/system/bin", NULL};

#ifdef DHD_FW_COREDUMP
        if (dhdp->memdump_enabled == DUMP_MEMFILE_BUGON)
#endif // endif
        {
                if (dhdp->hang_reason == HANG_REASON_PCIE_LINK_DOWN ||
#ifdef DHD_FW_COREDUMP
                        dhdp->memdump_success == FALSE ||
#endif // endif
                        FALSE) {
                        dhdp->info->duart_execute = TRUE;
                        DHD_ERROR(("DHD: %s - execute %s %s\n",
                                __FUNCTION__, DHD_DEBUG_UART_EXEC_PATH, cmd));
                        ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC);
                        DHD_ERROR(("DHD: %s - %s %s ret = %d\n",
                                __FUNCTION__, DHD_DEBUG_UART_EXEC_PATH, cmd, ret));
                        dhdp->info->duart_execute = FALSE;

#ifdef DHD_LOG_DUMP
                        if (dhdp->memdump_type != DUMP_TYPE_BY_SYSDUMP)
#endif // endif
                        {
                                BUG_ON(1);
                        }
                }
        }
}
#endif  /* DHD_DEBUG_UART */

#if defined(DHD_BLOB_EXISTENCE_CHECK)
void
dhd_set_blob_support(dhd_pub_t *dhdp, char *fw_path)
{
        struct file *fp;
        char *filepath = VENDOR_PATH CONFIG_BCMDHD_CLM_PATH;
        fp = filp_open(filepath, O_RDONLY, 0);
        if (IS_ERR(fp)) {
                DHD_ERROR(("%s: ----- blob file doesn't exist (%s) -----\n", __FUNCTION__,
                        filepath));
                dhdp->is_blob = FALSE;
        } else {
                DHD_ERROR(("%s: ----- blob file exists (%s)-----\n", __FUNCTION__, filepath));
                dhdp->is_blob = TRUE;
#if defined(CONCATE_BLOB)
                strncat(fw_path, "_blob", strlen("_blob"));
#else
                BCM_REFERENCE(fw_path);
#endif /* SKIP_CONCATE_BLOB */
                filp_close(fp, NULL);
        }
}
#endif /* DHD_BLOB_EXISTENCE_CHECK */

#if defined(PCIE_FULL_DONGLE)
/** test / loopback */
void
dmaxfer_free_dmaaddr_handler(void *handle, void *event_info, u8 event)
{
        dmaxref_mem_map_t *dmmap = (dmaxref_mem_map_t *)event_info;
        dhd_info_t *dhd_info = (dhd_info_t *)handle;

        if (event != DHD_WQ_WORK_DMA_LB_MEM_REL) {
                DHD_ERROR(("%s: Unexpected event \n", __FUNCTION__));
                return;
        }
        if (dhd_info == NULL) {
                DHD_ERROR(("%s: Invalid dhd_info\n", __FUNCTION__));
                return;
        }
        if (dmmap == NULL) {
                DHD_ERROR(("%s: dmmap is null\n", __FUNCTION__));
                return;
        }
        dmaxfer_free_prev_dmaaddr(&dhd_info->pub, dmmap);
}

void
dhd_schedule_dmaxfer_free(dhd_pub_t *dhdp, dmaxref_mem_map_t *dmmap)
{
        dhd_info_t *dhd_info = dhdp->info;

        dhd_deferred_schedule_work(dhd_info->dhd_deferred_wq, (void *)dmmap,
                DHD_WQ_WORK_DMA_LB_MEM_REL, dmaxfer_free_dmaaddr_handler, DHD_WQ_WORK_PRIORITY_LOW);
}
#endif /* PCIE_FULL_DONGLE */
/* ---------------------------- End of sysfs implementation ------------------------------------- */

#ifdef SET_PCIE_IRQ_CPU_CORE
void
dhd_set_irq_cpucore(dhd_pub_t *dhdp, int affinity_cmd)
{
        unsigned int pcie_irq = 0;

        if (!dhdp) {
                DHD_ERROR(("%s : dhd is NULL\n", __FUNCTION__));
                return;
        }

        if (!dhdp->bus) {
                DHD_ERROR(("%s : dhd->bus is NULL\n", __FUNCTION__));
                return;
        }

        DHD_ERROR(("Enter %s, PCIe affinity cmd=0x%x\n", __FUNCTION__, affinity_cmd));

        if (dhdpcie_get_pcieirq(dhdp->bus, &pcie_irq)) {
                DHD_ERROR(("%s : Can't get interrupt number\n", __FUNCTION__));
                return;
        }

        /*
                irq_set_affinity() assign dedicated CPU core PCIe interrupt
                If dedicated CPU core is not on-line,
                PCIe interrupt scheduled on CPU core 0
        */
        switch (affinity_cmd) {
                case PCIE_IRQ_AFFINITY_OFF:
                        break;
                case PCIE_IRQ_AFFINITY_BIG_CORE_ANY:
                        irq_set_affinity(pcie_irq, dhdp->info->cpumask_primary);
                        break;
#ifdef CONFIG_SOC_EXYNOS9810
                case PCIE_IRQ_AFFINITY_BIG_CORE_EXYNOS:
                        DHD_ERROR(("%s, PCIe IRQ:%u set Core %d\n",
                                __FUNCTION__, pcie_irq, PCIE_IRQ_CPU_CORE));
                        irq_set_affinity(pcie_irq, cpumask_of(PCIE_IRQ_CPU_CORE));
                        break;
#endif /* CONFIG_SOC_EXYNOS9810 */
                default:
                        DHD_ERROR(("%s, Unknown PCIe affinity cmd=0x%x\n",
                                __FUNCTION__, affinity_cmd));
        }
}
#endif /* SET_PCIE_IRQ_CPU_CORE */

int
dhd_write_file(const char *filepath, char *buf, int buf_len)
{
        struct file *fp = NULL;
        mm_segment_t old_fs;
        int ret = 0;

        /* change to KERNEL_DS address limit */
        old_fs = get_fs();
        set_fs(KERNEL_DS);

        /* File is always created. */
        fp = filp_open(filepath, O_RDWR | O_CREAT, 0664);
        if (IS_ERR(fp)) {
                DHD_ERROR(("%s: Couldn't open file '%s' err %ld\n",
                        __FUNCTION__, filepath, PTR_ERR(fp)));
                ret = BCME_ERROR;
        } else {
                if (fp->f_mode & FMODE_WRITE) {
                        ret = vfs_write(fp, buf, buf_len, &fp->f_pos);
                        if (ret < 0) {
                                DHD_ERROR(("%s: Couldn't write file '%s'\n",
                                        __FUNCTION__, filepath));
                                ret = BCME_ERROR;
                        } else {
                                ret = BCME_OK;
                        }
                }
                filp_close(fp, NULL);
        }

        /* restore previous address limit */
        set_fs(old_fs);

        return ret;
}

int
dhd_read_file(const char *filepath, char *buf, int buf_len)
{
        struct file *fp = NULL;
        mm_segment_t old_fs;
        int ret;

        /* change to KERNEL_DS address limit */
        old_fs = get_fs();
        set_fs(KERNEL_DS);

        fp = filp_open(filepath, O_RDONLY, 0);
        if (IS_ERR(fp)) {
                set_fs(old_fs);
                DHD_ERROR(("%s: File %s doesn't exist\n", __FUNCTION__, filepath));
                return BCME_ERROR;
        }

        ret = kernel_read(fp, 0, buf, buf_len);
        filp_close(fp, NULL);

        /* restore previous address limit */
        set_fs(old_fs);

        /* Return the number of bytes read */
        if (ret > 0) {
                /* Success to read */
                ret = 0;
        } else {
                DHD_ERROR(("%s: Couldn't read the file %s, ret=%d\n",
                        __FUNCTION__, filepath, ret));
                ret = BCME_ERROR;
        }

        return ret;
}

int
dhd_write_file_and_check(const char *filepath, char *buf, int buf_len)
{
        int ret;

        ret = dhd_write_file(filepath, buf, buf_len);
        if (ret < 0) {
                return ret;
        }

        /* Read the file again and check if the file size is not zero */
        memset(buf, 0, buf_len);
        ret = dhd_read_file(filepath, buf, buf_len);

        return ret;
}

#ifdef FILTER_IE
int dhd_read_from_file(dhd_pub_t *dhd)
{
        int ret = 0, nread = 0;
        void *fd;
        uint8 *buf;
        NULL_CHECK(dhd, "dhd is NULL", ret);

        buf = MALLOCZ(dhd->osh, FILE_BLOCK_READ_SIZE);
        if (!buf) {
                DHD_ERROR(("error: failed to alllocate buf.\n"));
                return BCME_NOMEM;
        }

        /* open file to read */
        fd = dhd_os_open_image1(dhd, FILTER_IE_PATH);
        if (!fd) {
                DHD_ERROR(("error: failed to open %s\n", FILTER_IE_PATH));
                ret = BCME_EPERM;
                goto exit;
        }
        nread = dhd_os_get_image_block(buf, (FILE_BLOCK_READ_SIZE - 1), fd);
        if (nread > 0) {
                buf[nread] = '\0';
                if ((ret = dhd_parse_filter_ie(dhd, buf)) < 0) {
                        DHD_ERROR(("error: failed to parse filter ie\n"));
                }
        } else {
                DHD_ERROR(("error: zero length file.failed to read\n"));
                ret = BCME_ERROR;
        }
        dhd_os_close_image1(dhd, fd);
exit:
        if (buf) {
                MFREE(dhd->osh, buf, FILE_BLOCK_READ_SIZE);
                buf = NULL;
        }
        return ret;
}

int dhd_get_filter_ie_count(dhd_pub_t *dhdp, uint8* buf)
{
        uint8* pstr = buf;
        int element_count = 0;

        if (buf == NULL) {
                return BCME_ERROR;
        }

        while (*pstr != '\0') {
                if (*pstr == '\n') {
                        element_count++;
                }
                pstr++;
        }
        /*
         * New line character must not be present after last line.
         * To count last line
         */
        element_count++;

        return element_count;
}

int dhd_parse_oui(dhd_pub_t *dhd, uint8 *inbuf, uint8 *oui, int len)
{
        uint8 i, j, msb, lsb, oui_len = 0;
        /*
         * OUI can vary from 3 bytes to 5 bytes.
         * While reading from file as ascii input it can
         * take maximum size of 14 bytes and minumum size of
         * 8 bytes including ":"
         * Example 5byte OUI <AB:DE:BE:CD:FA>
         * Example 3byte OUI <AB:DC:EF>
         */

        if ((inbuf == NULL) || (len < 8) || (len > 14)) {
                DHD_ERROR(("error: failed to parse OUI \n"));
                return BCME_ERROR;
        }

        for (j = 0, i = 0; i < len; i += 3, ++j) {
                if (!bcm_isxdigit(inbuf[i]) || !bcm_isxdigit(inbuf[i + 1])) {
                        DHD_ERROR(("error: invalid OUI format \n"));
                        return BCME_ERROR;
                }
                msb = inbuf[i] > '9' ? bcm_toupper(inbuf[i]) - 'A' + 10 : inbuf[i] - '0';
                lsb = inbuf[i + 1] > '9' ? bcm_toupper(inbuf[i + 1]) -
                        'A' + 10 : inbuf[i + 1] - '0';
                oui[j] = (msb << 4) | lsb;
        }
        /* Size of oui.It can vary from 3/4/5 */
        oui_len = j;

        return oui_len;
}

int dhd_check_valid_ie(dhd_pub_t *dhdp, uint8* buf, int len)
{
        int i = 0;

        while (i < len) {
                if (!bcm_isdigit(buf[i])) {
                        DHD_ERROR(("error: non digit value found in filter_ie \n"));
                        return BCME_ERROR;
                }
                i++;
        }
        if (bcm_atoi((char*)buf) > 255) {
                DHD_ERROR(("error: element id cannot be greater than 255 \n"));
                return BCME_ERROR;
        }

        return BCME_OK;
}

int dhd_parse_filter_ie(dhd_pub_t *dhd, uint8 *buf)
{
        int element_count = 0, i = 0, oui_size = 0, ret = 0;
        uint16 bufsize, buf_space_left, id = 0, len = 0;
        uint16 filter_iovsize, all_tlvsize;
        wl_filter_ie_tlv_t *p_ie_tlv = NULL;
        wl_filter_ie_iov_v1_t *p_filter_iov = (wl_filter_ie_iov_v1_t *) NULL;
        char *token = NULL, *ele_token = NULL, *oui_token = NULL, *type = NULL;
        uint8 data[20];

        element_count = dhd_get_filter_ie_count(dhd, buf);
        DHD_INFO(("total element count %d \n", element_count));
        /* Calculate the whole buffer size */
        filter_iovsize = sizeof(wl_filter_ie_iov_v1_t) + FILTER_IE_BUFSZ;
        p_filter_iov = MALLOCZ(dhd->osh, filter_iovsize);

        if (p_filter_iov == NULL) {
                DHD_ERROR(("error: failed to allocate %d bytes of memory\n", filter_iovsize));
                return BCME_ERROR;
        }

        /* setup filter iovar header */
        p_filter_iov->version = WL_FILTER_IE_VERSION;
        p_filter_iov->len = filter_iovsize;
        p_filter_iov->fixed_length = p_filter_iov->len - FILTER_IE_BUFSZ;
        p_filter_iov->pktflag = FC_PROBE_REQ;
        p_filter_iov->option = WL_FILTER_IE_CHECK_SUB_OPTION;
        /* setup TLVs */
        bufsize = filter_iovsize - WL_FILTER_IE_IOV_HDR_SIZE; /* adjust available size for TLVs */
        p_ie_tlv = (wl_filter_ie_tlv_t *)&p_filter_iov->tlvs[0];
        buf_space_left = bufsize;

        while ((i < element_count) && (buf != NULL)) {
                len = 0;
                /* token contains one line of input data */
                token = bcmstrtok((char**)&buf, "\n", NULL);
                if (token == NULL) {
                        break;
                }
                if ((ele_token = bcmstrstr(token, ",")) == NULL) {
                /* only element id is present */
                        if (dhd_check_valid_ie(dhd, token, strlen(token)) == BCME_ERROR) {
                                DHD_ERROR(("error: Invalid element id \n"));
                                ret = BCME_ERROR;
                                goto exit;
                        }
                        id = bcm_atoi((char*)token);
                        data[len++] = WL_FILTER_IE_SET;
                } else {
                        /* oui is present */
                        ele_token = bcmstrtok(&token, ",", NULL);
                        if ((ele_token == NULL) || (dhd_check_valid_ie(dhd, ele_token,
                                strlen(ele_token)) == BCME_ERROR)) {
                                DHD_ERROR(("error: Invalid element id \n"));
                                ret = BCME_ERROR;
                                goto exit;
                        }
                        id =  bcm_atoi((char*)ele_token);
                        data[len++] = WL_FILTER_IE_SET;
                        if ((oui_token = bcmstrstr(token, ",")) == NULL) {
                                oui_size = dhd_parse_oui(dhd, token, &(data[len]), strlen(token));
                                if (oui_size == BCME_ERROR) {
                                        DHD_ERROR(("error: Invalid OUI \n"));
                                        ret = BCME_ERROR;
                                        goto exit;
                                }
                                len += oui_size;
                        } else {
                                /* type is present */
                                oui_token = bcmstrtok(&token, ",", NULL);
                                if ((oui_token == NULL) || ((oui_size =
                                        dhd_parse_oui(dhd, oui_token,
                                        &(data[len]), strlen(oui_token))) == BCME_ERROR)) {
                                        DHD_ERROR(("error: Invalid OUI \n"));
                                        ret = BCME_ERROR;
                                        goto exit;
                                }
                                len += oui_size;
                                if ((type = bcmstrstr(token, ",")) == NULL) {
                                        if (dhd_check_valid_ie(dhd, token,
                                                strlen(token)) == BCME_ERROR) {
                                                DHD_ERROR(("error: Invalid type \n"));
                                                ret = BCME_ERROR;
                                                goto exit;
                                        }
                                        data[len++] = bcm_atoi((char*)token);
                                } else {
                                        /* subtype is present */
                                        type = bcmstrtok(&token, ",", NULL);
                                        if ((type == NULL) || (dhd_check_valid_ie(dhd, type,
                                                strlen(type)) == BCME_ERROR)) {
                                                DHD_ERROR(("error: Invalid type \n"));
                                                ret = BCME_ERROR;
                                                goto exit;
                                        }
                                        data[len++] = bcm_atoi((char*)type);
                                        /* subtype is last element */
                                        if ((token == NULL) || (*token == '\0') ||
                                                (dhd_check_valid_ie(dhd, token,
                                                strlen(token)) == BCME_ERROR)) {
                                                DHD_ERROR(("error: Invalid subtype \n"));
                                                ret = BCME_ERROR;
                                                goto exit;
                                        }
                                        data[len++] = bcm_atoi((char*)token);
                                }
                        }
                }
                ret = bcm_pack_xtlv_entry((uint8 **)&p_ie_tlv,
                        &buf_space_left, id, len, data, BCM_XTLV_OPTION_ALIGN32);
                if (ret != BCME_OK) {
                        DHD_ERROR(("%s : bcm_pack_xtlv_entry() failed ,"
                                "status=%d\n", __FUNCTION__, ret));
                        goto exit;
                }
                i++;
        }
        if (i == 0) {
                /* file is empty or first line is blank */
                DHD_ERROR(("error: filter_ie file is empty or first line is blank \n"));
                ret = BCME_ERROR;
                goto exit;
        }
        /* update the iov header, set len to include all TLVs + header */
        all_tlvsize = (bufsize - buf_space_left);
        p_filter_iov->len = htol16(all_tlvsize + WL_FILTER_IE_IOV_HDR_SIZE);
        ret = dhd_iovar(dhd, 0, "filter_ie", (void *)p_filter_iov,
                        p_filter_iov->len, NULL, 0, TRUE);
        if (ret != BCME_OK) {
                DHD_ERROR(("error: IOVAR failed, status=%d\n", ret));
        }
exit:
        /* clean up */
        if (p_filter_iov) {
                MFREE(dhd->osh, p_filter_iov, filter_iovsize);
                p_filter_iov = NULL;
        }
        return ret;
}
#endif /* FILTER_IE */
#ifdef DHD_WAKE_STATUS
wake_counts_t*
dhd_get_wakecount(dhd_pub_t *dhdp)
{
        return dhd_bus_get_wakecount(dhdp);
}
#endif /* DHD_WAKE_STATUS */

int
dhd_get_random_bytes(uint8 *buf, uint len)
{
#ifdef BCMPCIE
        get_random_bytes_arch(buf, len);
#endif /* BCMPCIE */
        return BCME_OK;
}

#if defined(DHD_HANG_SEND_UP_TEST)
void
dhd_make_hang_with_reason(struct net_device *dev, const char *string_num)
{
        dhd_info_t *dhd = NULL;
        dhd_pub_t *dhdp = NULL;
        uint reason = HANG_REASON_MAX;
        uint32 fw_test_code = 0;
        dhd = DHD_DEV_INFO(dev);

        if (dhd) {
                dhdp = &dhd->pub;
        }

        if (!dhd || !dhdp) {
                return;
        }

        reason = (uint) bcm_strtoul(string_num, NULL, 0);
        DHD_ERROR(("Enter %s, reason=0x%x\n", __FUNCTION__,  reason));

        if (reason == 0) {
                if (dhdp->req_hang_type) {
                        DHD_ERROR(("%s, Clear HANG test request 0x%x\n",
                                __FUNCTION__, dhdp->req_hang_type));
                        dhdp->req_hang_type = 0;
                        return;
                } else {
                        DHD_ERROR(("%s, No requested HANG test\n", __FUNCTION__));
                        return;
                }
        } else if ((reason <= HANG_REASON_MASK) || (reason >= HANG_REASON_MAX)) {
                DHD_ERROR(("Invalid HANG request, reason 0x%x\n", reason));
                return;
        }

        if (dhdp->req_hang_type != 0) {
                DHD_ERROR(("Already HANG requested for test\n"));
                return;
        }

        switch (reason) {
                case HANG_REASON_IOCTL_RESP_TIMEOUT:
                        DHD_ERROR(("Make HANG!!!: IOCTL response timeout(0x%x)\n", reason));
                        dhdp->req_hang_type = reason;
                        fw_test_code = 102; /* resumed on timeour */
                        dhd_wl_ioctl_set_intiovar(dhdp, "bus:disconnect", fw_test_code,
                                WLC_SET_VAR, TRUE, 0);
                        break;
                case HANG_REASON_DONGLE_TRAP:
                        DHD_ERROR(("Make HANG!!!: Dongle trap (0x%x)\n", reason));
                        dhdp->req_hang_type = reason;
                        fw_test_code = 99; /* dongle trap */
                        dhd_wl_ioctl_set_intiovar(dhdp, "bus:disconnect", fw_test_code,
                                WLC_SET_VAR, TRUE, 0);
                        break;
                case HANG_REASON_D3_ACK_TIMEOUT:
                        DHD_ERROR(("Make HANG!!!: D3 ACK timeout (0x%x)\n", reason));
                        dhdp->req_hang_type = reason;
                        break;
                case HANG_REASON_BUS_DOWN:
                        DHD_ERROR(("Make HANG!!!: BUS down(0x%x)\n", reason));
                        dhdp->req_hang_type = reason;
                        break;
                case HANG_REASON_PCIE_LINK_DOWN:
                case HANG_REASON_MSGBUF_LIVELOCK:
                        dhdp->req_hang_type = 0;
                        DHD_ERROR(("Does not support requested HANG(0x%x)\n", reason));
                        break;
                case HANG_REASON_IFACE_DEL_FAILURE:
                        dhdp->req_hang_type = 0;
                        DHD_ERROR(("Does not support requested HANG(0x%x)\n", reason));
                        break;
                case HANG_REASON_HT_AVAIL_ERROR:
                        dhdp->req_hang_type = 0;
                        DHD_ERROR(("PCIe does not support requested HANG(0x%x)\n", reason));
                        break;
                case HANG_REASON_PCIE_RC_LINK_UP_FAIL:
                        DHD_ERROR(("Make HANG!!!:Link Up(0x%x)\n", reason));
                        dhdp->req_hang_type = reason;
                        break;
                default:
                        dhdp->req_hang_type = 0;
                        DHD_ERROR(("Unknown HANG request (0x%x)\n", reason));
                        break;
        }
}
#endif /* DHD_HANG_SEND_UP_TEST */

#ifdef DHD_ERPOM
static void
dhd_error_recovery(void *handle, void *event_info, u8 event)
{
        dhd_info_t *dhd = handle;
        dhd_pub_t *dhdp;
        int ret = 0;

        if (!dhd) {
                DHD_ERROR(("%s: dhd is NULL\n", __FUNCTION__));
                return;
        }

        dhdp = &dhd->pub;

        if (!(dhd->dhd_state & DHD_ATTACH_STATE_DONE)) {
                DHD_ERROR(("%s: init not completed, cannot initiate recovery\n",
                        __FUNCTION__));
                return;
        }

        ret = dhd_bus_perform_flr_with_quiesce(dhdp);
        if (ret != BCME_DNGL_DEVRESET) {
                DHD_ERROR(("%s: dhd_bus_perform_flr_with_quiesce failed with ret: %d,"
                        "toggle REG_ON\n", __FUNCTION__, ret));
                /* toggle REG_ON */
                dhdp->pom_toggle_reg_on(WLAN_FUNC_ID, BY_WLAN_DUE_TO_WLAN);
                return;
        }
}

void
dhd_schedule_reset(dhd_pub_t *dhdp)
{
        if (dhdp->enable_erpom) {
                dhd_deferred_schedule_work(dhdp->info->dhd_deferred_wq, NULL,
                        DHD_WQ_WORK_ERROR_RECOVERY, dhd_error_recovery, DHD_WQ_WORK_PRIORITY_HIGH);
        }
}
#endif /* DHD_ERPOM */

#ifdef DHD_PKT_LOGGING
void
dhd_pktlog_dump(void *handle, void *event_info, u8 event)
{
        dhd_info_t *dhd = handle;

        if (!dhd) {
                DHD_ERROR(("%s: dhd is NULL\n", __FUNCTION__));
                return;
        }

        if (dhd_pktlog_write_file(&dhd->pub)) {
                DHD_ERROR(("%s: writing pktlog dump to the file failed\n", __FUNCTION__));
                return;
        }
}

void
dhd_schedule_pktlog_dump(dhd_pub_t *dhdp)
{
        dhd_deferred_schedule_work(dhdp->info->dhd_deferred_wq,
                        (void*)NULL, DHD_WQ_WORK_PKTLOG_DUMP,
                        dhd_pktlog_dump, DHD_WQ_WORK_PRIORITY_HIGH);
}
#endif /* DHD_PKT_LOGGING */

#ifdef BIGDATA_SOFTAP
void dhd_schedule_gather_ap_stadata(void *bcm_cfg, void *ndev, const wl_event_msg_t *e)
{
        struct bcm_cfg80211 *cfg;
        dhd_pub_t *dhdp;
        ap_sta_wq_data_t *p_wq_data;

        if  (!bcm_cfg || !ndev || !e) {
                WL_ERR(("bcm_cfg=%p ndev=%p e=%p\n", bcm_cfg, ndev, e));
                return;
        }

        cfg = (struct bcm_cfg80211 *)bcm_cfg;
        dhdp = (dhd_pub_t *)cfg->pub;

        if (!dhdp || !cfg->ap_sta_info) {
                WL_ERR(("dhdp=%p ap_sta_info=%p\n", dhdp, cfg->ap_sta_info));
                return;
        }

        p_wq_data = (ap_sta_wq_data_t *)MALLOCZ(dhdp->osh, sizeof(ap_sta_wq_data_t));
        if (unlikely(!p_wq_data)) {
                DHD_ERROR(("%s(): could not allocate memory for - "
                                        "ap_sta_wq_data_t\n", __FUNCTION__));
                return;
        }

        mutex_lock(&cfg->ap_sta_info->wq_data_sync);

        memcpy(&p_wq_data->e, e, sizeof(wl_event_msg_t));
        p_wq_data->dhdp = dhdp;
        p_wq_data->bcm_cfg = cfg;
        p_wq_data->ndev = (struct net_device *)ndev;

        mutex_unlock(&cfg->ap_sta_info->wq_data_sync);

        dhd_deferred_schedule_work(dhdp->info->dhd_deferred_wq,
                        p_wq_data, DHD_WQ_WORK_GET_BIGDATA_AP,
                        wl_gather_ap_stadata, DHD_WQ_WORK_PRIORITY_HIGH);

}
#endif /* BIGDATA_SOFTAP */

void
get_debug_dump_time(char *str)
{
        struct timeval curtime;
        unsigned long local_time;
        struct rtc_time tm;

        if (!strlen(str)) {
                do_gettimeofday(&curtime);
                local_time = (u32)(curtime.tv_sec -
                                (sys_tz.tz_minuteswest * DHD_LOG_DUMP_TS_MULTIPLIER_VALUE));
                rtc_time_to_tm(local_time, &tm);

                snprintf(str, DEBUG_DUMP_TIME_BUF_LEN, DHD_LOG_DUMP_TS_FMT_YYMMDDHHMMSSMSMS,
                                tm.tm_year - 100, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min,
                                tm.tm_sec, (int)(curtime.tv_usec/NSEC_PER_USEC));
        }
}

void
clear_debug_dump_time(char *str)
{
        memset(str, 0, DEBUG_DUMP_TIME_BUF_LEN);
}
#if defined(WL_CFGVENDOR_SEND_HANG_EVENT) || defined(DHD_PKT_LOGGING)
void
copy_debug_dump_time(char *dest, char *src)
{
        memcpy(dest, src, DEBUG_DUMP_TIME_BUF_LEN);
}
#endif /* WL_CFGVENDOR_SEND_HANG_EVENT || DHD_PKT_LOGGING */

#define KIRQ_PRINT_BUF_LEN 256

void
dhd_print_kirqstats(dhd_pub_t *dhd, unsigned int irq_num)
{
        unsigned long flags = 0;
        struct irq_desc *desc;
        int i;          /* cpu iterator */
        struct bcmstrbuf strbuf;
        char tmp_buf[KIRQ_PRINT_BUF_LEN];

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28))
        desc = irq_to_desc(irq_num);
        if (!desc) {
                DHD_ERROR(("%s : irqdesc is not found \n", __FUNCTION__));
                return;
        }
        bcm_binit(&strbuf, tmp_buf, KIRQ_PRINT_BUF_LEN);
        raw_spin_lock_irqsave(&desc->lock, flags);
        bcm_bprintf(&strbuf, "dhd irq %u:", irq_num);
        for_each_online_cpu(i)
                bcm_bprintf(&strbuf, "%10u ",
                        desc->kstat_irqs ? *per_cpu_ptr(desc->kstat_irqs, i) : 0);
        if (desc->irq_data.chip) {
                if (desc->irq_data.chip->name)
                        bcm_bprintf(&strbuf, " %8s", desc->irq_data.chip->name);
                else
                        bcm_bprintf(&strbuf, " %8s", "-");
        } else {
                bcm_bprintf(&strbuf, " %8s", "None");
        }
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 1, 0))
        if (desc->irq_data.domain)
                bcm_bprintf(&strbuf, " %d", (int)desc->irq_data.hwirq);
#ifdef CONFIG_GENERIC_IRQ_SHOW_LEVEL
        bcm_bprintf(&strbuf, " %-8s", irqd_is_level_type(&desc->irq_data) ? "Level" : "Edge");
#endif // endif
#endif /* LINUX VERSION > 3.1.0 */

        if (desc->name)
                bcm_bprintf(&strbuf, "-%-8s", desc->name);

        DHD_ERROR(("%s\n", strbuf.origbuf));
        raw_spin_unlock_irqrestore(&desc->lock, flags);
#endif /* LINUX VERSION > 2.6.28 */
}

void
dhd_show_kirqstats(dhd_pub_t *dhd)
{
        unsigned int irq = -1;
#ifdef BCMPCIE
        dhdpcie_get_pcieirq(dhd->bus, &irq);
#endif /* BCMPCIE */
#ifdef BCMSDIO
        irq = ((wifi_adapter_info_t *)dhd->info->adapter)->irq_num;
#endif /* BCMSDIO */
        if (irq != -1) {
#ifdef BCMPCIE
                DHD_ERROR(("DUMP data kernel irq stats : \n"));
#endif /* BCMPCIE */
#ifdef BCMSDIO
                DHD_ERROR(("DUMP data/host wakeup kernel irq stats : \n"));
#endif /* BCMSDIO */
                dhd_print_kirqstats(dhd, irq);
        }
#ifdef BCMPCIE_OOB_HOST_WAKE
        irq = dhdpcie_get_oob_irq_num(dhd->bus);
        if (irq) {
                DHD_ERROR(("DUMP PCIE host wakeup kernel irq stats : \n"));
                dhd_print_kirqstats(dhd, irq);
        }
#endif /* BCMPCIE_OOB_HOST_WAKE */
}

void
dhd_print_tasklet_status(dhd_pub_t *dhd)
{
        dhd_info_t *dhdinfo;

        if (!dhd) {
                DHD_ERROR(("%s : DHD is null\n", __FUNCTION__));
                return;
        }

        dhdinfo = dhd->info;

        if (!dhdinfo) {
                DHD_ERROR(("%s : DHD INFO is null \n", __FUNCTION__));
                return;
        }

        DHD_ERROR(("DHD Tasklet status : 0x%lx\n", dhdinfo->tasklet.state));
}

/*
 * DHD RING
 */
#define DHD_RING_ERR_INTERNAL(fmt, ...) DHD_ERROR(("EWPF-" fmt, ##__VA_ARGS__))
#define DHD_RING_TRACE_INTERNAL(fmt, ...) DHD_INFO(("EWPF-" fmt, ##__VA_ARGS__))

#define DHD_RING_ERR(x) DHD_RING_ERR_INTERNAL x
#define DHD_RING_TRACE(x) DHD_RING_TRACE_INTERNAL x

#define DHD_RING_MAGIC 0x20170910
#define DHD_RING_IDX_INVALID    0xffffffff

typedef struct {
        uint32 elem_size;
        uint32 elem_cnt;
        uint32 write_idx;       /* next write index, -1 : not started */
        uint32 read_idx;        /* next read index, -1 : not start */

        /* protected elements during serialization */
        int lock_idx;   /* start index of locked, element will not be overried */
        int lock_count; /* number of locked, from lock idx */

        /* saved data elements */
        void *elem;
} dhd_fixed_ring_info_t;

typedef struct {
        uint32 magic;
        uint32 type;
        struct mutex ring_sync; /* pointer to mutex */
        union {
                dhd_fixed_ring_info_t fixed;
        };
} dhd_ring_info_t;

uint32
dhd_ring_get_hdr_size(void)
{
        return sizeof(dhd_ring_info_t);
}

void *
dhd_ring_init(uint8 *buf, uint32 buf_size, uint32 elem_size, uint32 elem_cnt)
{
        dhd_ring_info_t *ret_ring;

        if (!buf) {
                DHD_RING_ERR(("NO RING BUFFER\n"));
                return NULL;
        }
        if (buf_size < dhd_ring_get_hdr_size() + elem_size * elem_cnt) {
                DHD_RING_ERR(("RING SIZE IS TOO SMALL\n"));
                return NULL;
        }

        ret_ring = (dhd_ring_info_t *)buf;
        ret_ring->type = DHD_RING_TYPE_FIXED;
        mutex_init(&ret_ring->ring_sync);
        ret_ring->fixed.read_idx = DHD_RING_IDX_INVALID;
        ret_ring->fixed.write_idx = DHD_RING_IDX_INVALID;
        ret_ring->fixed.lock_idx = DHD_RING_IDX_INVALID;
        ret_ring->fixed.elem = buf + sizeof(dhd_ring_info_t);
        ret_ring->fixed.elem_size = elem_size;
        ret_ring->fixed.elem_cnt = elem_cnt;
        ret_ring->magic = DHD_RING_MAGIC;
        return ret_ring;
}

void
dhd_ring_deinit(void *_ring)
{
        dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
        dhd_fixed_ring_info_t *fixed;
        if (!ring) {
                return;
        }

        if (ring->magic != DHD_RING_MAGIC) {
                return;
        }

        mutex_destroy(&ring->ring_sync);
        fixed = &ring->fixed;
        memset(fixed->elem, 0, fixed->elem_size * fixed->elem_cnt);
        fixed->elem_size = fixed->elem_cnt = 0;
        ring->type = 0;
        ring->magic = 0;
        return;
}

/* get counts between two indexes of ring buffer (internal only) */
static inline int
__dhd_fixed_ring_get_count(dhd_fixed_ring_info_t *ring, int start, int end)
{
        if (start == DHD_RING_IDX_INVALID || end == DHD_RING_IDX_INVALID) {
                return 0;
        }

        return (ring->elem_cnt + end - start) % ring->elem_cnt + 1;
}

static inline int
__dhd_fixed_ring_get_cur_size(dhd_fixed_ring_info_t *ring)
{
        return __dhd_fixed_ring_get_count(ring, ring->read_idx, ring->write_idx);
}

static inline void *
__dhd_fixed_ring_get_first(dhd_fixed_ring_info_t *ring)
{
        if (ring->read_idx == DHD_RING_IDX_INVALID) {
                return NULL;
        }
        return (uint8 *)ring->elem + (ring->elem_size * ring->read_idx);
}

static inline void
__dhd_fixed_ring_free_first(dhd_fixed_ring_info_t *ring)
{
        uint32 next_idx;

        if (ring->read_idx == DHD_RING_IDX_INVALID) {
                DHD_RING_ERR(("EMPTY RING\n"));
                return;
        }

        next_idx = (ring->read_idx + 1) % ring->elem_cnt;
        if (ring->read_idx == ring->write_idx) {
                /* Become empty */
                ring->read_idx = ring->write_idx = DHD_RING_IDX_INVALID;
                return;
        }

        ring->read_idx = next_idx;
        return;
}

static inline void *
__dhd_fixed_ring_get_last(dhd_fixed_ring_info_t *ring)
{
        if (ring->read_idx == DHD_RING_IDX_INVALID) {
                return NULL;
        }
        return (uint8 *)ring->elem + (ring->elem_size * ring->write_idx);
}

static inline void *
__dhd_fixed_ring_get_empty(dhd_fixed_ring_info_t *ring)
{
        uint32 tmp_idx;

        if (ring->read_idx == DHD_RING_IDX_INVALID) {
                ring->read_idx = ring->write_idx = 0;
                return (uint8 *)ring->elem;
        }

        /* check next index is not locked */
        tmp_idx = (ring->write_idx + 1) % ring->elem_cnt;
        if (ring->lock_idx == tmp_idx) {
                return NULL;
        }

        ring->write_idx = tmp_idx;
        if (ring->write_idx == ring->read_idx) {
                /* record is full, drop oldest one */
                ring->read_idx = (ring->read_idx + 1) % ring->elem_cnt;

        }
        return (uint8 *)ring->elem + (ring->elem_size * ring->write_idx);
}

static inline uint32
__dhd_fixed_ring_ptr2idx(dhd_fixed_ring_info_t *ring, void *ptr, char *sig)
{
        uint32 diff;
        uint32 ret_idx = (uint32)DHD_RING_IDX_INVALID;

        if (ptr < ring->elem) {
                DHD_RING_ERR(("INVALID POINTER %s:%p, ring->elem:%p\n", sig, ptr, ring->elem));
                return ret_idx;
        }
        diff = (uint32)((uint8 *)ptr - (uint8 *)ring->elem);
        if (diff % ring->elem_size != 0) {
                DHD_RING_ERR(("INVALID POINTER %s:%p, ring->elem:%p\n", sig, ptr, ring->elem));
                return ret_idx;
        }
        ret_idx = diff / ring->elem_size;
        if (ret_idx >= ring->elem_cnt) {
                DHD_RING_ERR(("INVALID POINTER max:%d cur:%d\n", ring->elem_cnt, ret_idx));
        }
        return ret_idx;
}

static inline void *
__dhd_fixed_ring_get_next(dhd_fixed_ring_info_t *ring, void *prev)
{
        uint32 cur_idx;

        if (ring->read_idx == DHD_RING_IDX_INVALID) {
                DHD_RING_ERR(("EMPTY RING\n"));
                return NULL;
        }

        cur_idx = __dhd_fixed_ring_ptr2idx(ring, prev, "NEXT");
        if (cur_idx >= ring->elem_cnt) {
                return NULL;
        }

        if (cur_idx == ring->write_idx) {
                /* no more new record */
                return NULL;
        }

        cur_idx = (cur_idx + 1) % ring->elem_cnt;
        return (uint8 *)ring->elem + ring->elem_size * cur_idx;
}

static inline void *
__dhd_fixed_ring_get_prev(dhd_fixed_ring_info_t *ring, void *prev)
{
        uint32 cur_idx;

        if (ring->read_idx == DHD_RING_IDX_INVALID) {
                DHD_RING_ERR(("EMPTY RING\n"));
                return NULL;
        }
        cur_idx = __dhd_fixed_ring_ptr2idx(ring, prev, "PREV");
        if (cur_idx >= ring->elem_cnt) {
                return NULL;
        }
        if (cur_idx == ring->read_idx) {
                /* no more new record */
                return NULL;
        }

        cur_idx = (cur_idx + ring->elem_cnt - 1) % ring->elem_cnt;
        return (uint8 *)ring->elem + ring->elem_size * cur_idx;
}

static inline void
__dhd_fixed_ring_lock(dhd_fixed_ring_info_t *ring, void *first_ptr, void *last_ptr)
{
        uint32 first_idx;
        uint32 last_idx;
        uint32 ring_filled_cnt;
        uint32 tmp_cnt;

        if (ring->read_idx == DHD_RING_IDX_INVALID) {
                DHD_RING_ERR(("EMPTY RING\n"));
                return;
        }

        if (first_ptr) {
                first_idx = __dhd_fixed_ring_ptr2idx(ring, first_ptr, "LCK FIRST");
                if (first_idx >= ring->elem_cnt) {
                        return;
                }
        } else {
                first_idx = ring->read_idx;
        }

        if (last_ptr) {
                last_idx = __dhd_fixed_ring_ptr2idx(ring, last_ptr, "LCK LAST");
                if (last_idx >= ring->elem_cnt) {
                        return;
                }
        } else {
                last_idx = ring->write_idx;
        }

        ring_filled_cnt = __dhd_fixed_ring_get_count(ring, ring->read_idx, ring->write_idx);
        tmp_cnt = __dhd_fixed_ring_get_count(ring, ring->read_idx, first_idx);
        if (tmp_cnt > ring_filled_cnt) {
                DHD_RING_ERR(("LOCK FIRST IS TO EMPTY ELEM: write: %d read: %d cur:%d\n",
                        ring->write_idx, ring->read_idx, first_idx));
                return;
        }

        tmp_cnt = __dhd_fixed_ring_get_count(ring, ring->read_idx, last_idx);
        if (tmp_cnt > ring_filled_cnt) {
                DHD_RING_ERR(("LOCK LAST IS TO EMPTY ELEM: write: %d read: %d cur:%d\n",
                        ring->write_idx, ring->read_idx, last_idx));
                return;
        }

        ring->lock_idx = first_idx;
        ring->lock_count = __dhd_fixed_ring_get_count(ring, first_idx, last_idx);
        return;
}

static inline void
__dhd_fixed_ring_lock_free(dhd_fixed_ring_info_t *ring)
{
        if (ring->read_idx == DHD_RING_IDX_INVALID) {
                DHD_RING_ERR(("EMPTY RING\n"));
                return;
        }

        ring->lock_idx = DHD_RING_IDX_INVALID;
        ring->lock_count = 0;
        return;
}
static inline void *
__dhd_fixed_ring_lock_get_first(dhd_fixed_ring_info_t *ring)
{
        if (ring->read_idx == DHD_RING_IDX_INVALID) {
                DHD_RING_ERR(("EMPTY RING\n"));
                return NULL;
        }
        if (ring->lock_idx == DHD_RING_IDX_INVALID) {
                DHD_RING_ERR(("NO LOCK POINT\n"));
                return NULL;
        }
        return (uint8 *)ring->elem + ring->elem_size * ring->lock_idx;
}

static inline void *
__dhd_fixed_ring_lock_get_last(dhd_fixed_ring_info_t *ring)
{
        int lock_last_idx;
        if (ring->read_idx == DHD_RING_IDX_INVALID) {
                DHD_RING_ERR(("EMPTY RING\n"));
                return NULL;
        }
        if (ring->lock_idx == DHD_RING_IDX_INVALID) {
                DHD_RING_ERR(("NO LOCK POINT\n"));
                return NULL;
        }

        lock_last_idx = (ring->lock_idx + ring->lock_count - 1) % ring->elem_cnt;
        return (uint8 *)ring->elem + ring->elem_size * lock_last_idx;
}

static inline int
__dhd_fixed_ring_lock_get_count(dhd_fixed_ring_info_t *ring)
{
        if (ring->read_idx == DHD_RING_IDX_INVALID) {
                DHD_RING_ERR(("EMPTY RING\n"));
                return BCME_ERROR;
        }
        if (ring->lock_idx == DHD_RING_IDX_INVALID) {
                DHD_RING_ERR(("NO LOCK POINT\n"));
                return BCME_ERROR;
        }
        return ring->lock_count;
}

static inline void
__dhd_fixed_ring_lock_free_first(dhd_fixed_ring_info_t *ring)
{
        if (ring->read_idx == DHD_RING_IDX_INVALID) {
                DHD_RING_ERR(("EMPTY RING\n"));
                return;
        }
        if (ring->lock_idx == DHD_RING_IDX_INVALID) {
                DHD_RING_ERR(("NO LOCK POINT\n"));
                return;
        }

        ring->lock_count--;
        if (ring->lock_count <= 0) {
                ring->lock_idx = DHD_RING_IDX_INVALID;
        } else {
                ring->lock_idx = (ring->lock_idx + 1) % ring->elem_cnt;
        }
        return;
}

/* Get first element : oldest element */
void *
dhd_ring_get_first(void *_ring)
{
        dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
        void *ret = NULL;

        if (!ring || ring->magic != DHD_RING_MAGIC) {
                DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
                return NULL;
        }

        mutex_lock(&ring->ring_sync);
        if (ring->type == DHD_RING_TYPE_FIXED) {
                ret = __dhd_fixed_ring_get_first(&ring->fixed);
        }
        mutex_unlock(&ring->ring_sync);
        return ret;
}

/* Free first element : oldest element */
void
dhd_ring_free_first(void *_ring)
{
        dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;

        if (!ring || ring->magic != DHD_RING_MAGIC) {
                DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
                return;
        }

        mutex_lock(&ring->ring_sync);
        if (ring->type == DHD_RING_TYPE_FIXED) {
                __dhd_fixed_ring_free_first(&ring->fixed);
        }
        mutex_unlock(&ring->ring_sync);
        return;
}

/* Get latest element */
void *
dhd_ring_get_last(void *_ring)
{
        dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
        void *ret = NULL;

        if (!ring || ring->magic != DHD_RING_MAGIC) {
                DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
                return NULL;
        }

        mutex_lock(&ring->ring_sync);
        if (ring->type == DHD_RING_TYPE_FIXED) {
                ret = __dhd_fixed_ring_get_last(&ring->fixed);
        }
        mutex_unlock(&ring->ring_sync);
        return ret;
}

/* Get next point can be written
 * will overwrite which doesn't read
 * will return NULL if next pointer is locked
 */
void *
dhd_ring_get_empty(void *_ring)
{
        dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
        void *ret = NULL;

        if (!ring || ring->magic != DHD_RING_MAGIC) {
                DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
                return NULL;
        }

        mutex_lock(&ring->ring_sync);
        if (ring->type == DHD_RING_TYPE_FIXED) {
                ret = __dhd_fixed_ring_get_empty(&ring->fixed);
        }
        mutex_unlock(&ring->ring_sync);
        return ret;
}

void *
dhd_ring_get_next(void *_ring, void *cur)
{
        dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
        void *ret = NULL;

        if (!ring || ring->magic != DHD_RING_MAGIC) {
                DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
                return NULL;
        }

        mutex_lock(&ring->ring_sync);
        if (ring->type == DHD_RING_TYPE_FIXED) {
                ret = __dhd_fixed_ring_get_next(&ring->fixed, cur);
        }
        mutex_unlock(&ring->ring_sync);
        return ret;
}

void *
dhd_ring_get_prev(void *_ring, void *cur)
{
        dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
        void *ret = NULL;

        if (!ring || ring->magic != DHD_RING_MAGIC) {
                DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
                return NULL;
        }

        mutex_lock(&ring->ring_sync);
        if (ring->type == DHD_RING_TYPE_FIXED) {
                ret = __dhd_fixed_ring_get_prev(&ring->fixed, cur);
        }
        mutex_unlock(&ring->ring_sync);
        return ret;
}

int
dhd_ring_get_cur_size(void *_ring)
{
        dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
        int cnt = 0;

        if (!ring || ring->magic != DHD_RING_MAGIC) {
                DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
                return cnt;
        }

        mutex_lock(&ring->ring_sync);
        if (ring->type == DHD_RING_TYPE_FIXED) {
                cnt = __dhd_fixed_ring_get_cur_size(&ring->fixed);
        }
        mutex_unlock(&ring->ring_sync);
        return cnt;
}

/* protect element between lock_ptr and write_idx */
void
dhd_ring_lock(void *_ring, void *first_ptr, void *last_ptr)
{
        dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;

        if (!ring || ring->magic != DHD_RING_MAGIC) {
                DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
                return;
        }

        mutex_lock(&ring->ring_sync);
        if (ring->type == DHD_RING_TYPE_FIXED) {
                __dhd_fixed_ring_lock(&ring->fixed, first_ptr, last_ptr);
        }
        mutex_unlock(&ring->ring_sync);
        return;
}

/* free all lock */
void
dhd_ring_lock_free(void *_ring)
{
        dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;

        if (!ring || ring->magic != DHD_RING_MAGIC) {
                DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
                return;
        }

        mutex_lock(&ring->ring_sync);
        if (ring->type == DHD_RING_TYPE_FIXED) {
                __dhd_fixed_ring_lock_free(&ring->fixed);
        }
        mutex_unlock(&ring->ring_sync);
        return;
}

void *
dhd_ring_lock_get_first(void *_ring)
{
        dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
        void *ret = NULL;

        if (!ring || ring->magic != DHD_RING_MAGIC) {
                DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
                return NULL;
        }

        mutex_lock(&ring->ring_sync);
        if (ring->type == DHD_RING_TYPE_FIXED) {
                ret = __dhd_fixed_ring_lock_get_first(&ring->fixed);
        }
        mutex_unlock(&ring->ring_sync);
        return ret;
}

void *
dhd_ring_lock_get_last(void *_ring)
{
        dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
        void *ret = NULL;

        if (!ring || ring->magic != DHD_RING_MAGIC) {
                DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
                return NULL;
        }

        mutex_lock(&ring->ring_sync);
        if (ring->type == DHD_RING_TYPE_FIXED) {
                ret = __dhd_fixed_ring_lock_get_last(&ring->fixed);
        }
        mutex_unlock(&ring->ring_sync);
        return ret;
}

int
dhd_ring_lock_get_count(void *_ring)
{
        dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;
        int ret = BCME_ERROR;

        if (!ring || ring->magic != DHD_RING_MAGIC) {
                DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
                return ret;
        }

        mutex_lock(&ring->ring_sync);
        if (ring->type == DHD_RING_TYPE_FIXED) {
                ret = __dhd_fixed_ring_lock_get_count(&ring->fixed);
        }
        mutex_unlock(&ring->ring_sync);
        return ret;
}

/* free first locked element */
void
dhd_ring_lock_free_first(void *_ring)
{
        dhd_ring_info_t *ring = (dhd_ring_info_t *)_ring;

        if (!ring || ring->magic != DHD_RING_MAGIC) {
                DHD_RING_ERR(("%s :INVALID RING INFO\n", __FUNCTION__));
                return;
        }

        mutex_lock(&ring->ring_sync);
        if (ring->type == DHD_RING_TYPE_FIXED) {
                __dhd_fixed_ring_lock_free_first(&ring->fixed);
        }
        mutex_unlock(&ring->ring_sync);
        return;
}

#ifdef DHD_DUMP_MNGR
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 19, 0))
#define DHD_VFS_INODE(dir) (dir->d_inode)
#else
#define DHD_VFS_INODE(dir) d_inode(dir)
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3, 19, 0) */

#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0))
#define DHD_VFS_UNLINK(dir, b, c) vfs_unlink(DHD_VFS_INODE(dir), b)
#else
#define DHD_VFS_UNLINK(dir, b, c) vfs_unlink(DHD_VFS_INODE(dir), b, c)
#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0) */

static int
dhd_file_delete(char *path)
{
        struct path file_path;
        int err;
        struct dentry *dir;

        err = kern_path(path, 0, &file_path);

        if (err < 0) {
                return err;
        }
        if (FALSE ||
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 13, 0))
                !d_is_file(file_path.dentry) ||
#if (LINUX_VERSION_CODE > KERNEL_VERSION(4, 0, 0))
                d_really_is_negative(file_path.dentry)
#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(4, 0, 0) */
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 13, 0) */
)
        {
                err = -EINVAL;
        } else {
                dir = dget_parent(file_path.dentry);

                if (!IS_ERR(dir)) {
                        err = DHD_VFS_UNLINK(dir, file_path.dentry, NULL);
                        dput(dir);
                } else {
                        err = PTR_ERR(dir);
                }
        }

        path_put(&file_path);

        if (err < 0) {
                DHD_ERROR(("Failed to delete file: %s error: %d\n", path, err));
        }

        return err;
}

static int
dhd_dump_file_manage_idx(dhd_dump_file_manage_t *fm_ptr, char *fname)
{
        int i;
        int fm_idx = -1;

        for (i = 0; i < DHD_DUMP_TYPE_COUNT_MAX; i++) {
                if (strlen(fm_ptr->elems[i].type_name) == 0) {
                        fm_idx = i;
                        break;
                }
                if (!(strncmp(fname, fm_ptr->elems[i].type_name, strlen(fname)))) {
                        fm_idx = i;
                        break;
                }
        }

        if (fm_idx == -1) {
                return fm_idx;
        }

        if (strlen(fm_ptr->elems[fm_idx].type_name) == 0) {
                strncpy(fm_ptr->elems[fm_idx].type_name, fname, DHD_DUMP_TYPE_NAME_SIZE);
                fm_ptr->elems[fm_idx].type_name[DHD_DUMP_TYPE_NAME_SIZE - 1] = '\0';
                fm_ptr->elems[fm_idx].file_idx = 0;
        }

        return fm_idx;
}

/*
 * dhd_dump_file_manage_enqueue - enqueue dump file path
 * and delete odest file if file count is max.
*/
void
dhd_dump_file_manage_enqueue(dhd_pub_t *dhd, char *dump_path, char *fname)
{
        int fm_idx;
        int fp_idx;
        dhd_dump_file_manage_t *fm_ptr;
        DFM_elem_t *elem;

        if (!dhd || !dhd->dump_file_manage) {
                DHD_ERROR(("%s(): dhdp=%p dump_file_manage=%p\n",
                        __FUNCTION__, dhd, (dhd ? dhd->dump_file_manage : NULL)));
                return;
        }

        fm_ptr = dhd->dump_file_manage;

        /* find file_manage idx */
        DHD_INFO(("%s(): fname: %s dump_path: %s\n", __FUNCTION__, fname, dump_path));
        if ((fm_idx = dhd_dump_file_manage_idx(fm_ptr, fname)) < 0) {
                DHD_ERROR(("%s(): Out of file manager entries, fname: %s\n",
                        __FUNCTION__, fname));
                return;
        }

        elem = &fm_ptr->elems[fm_idx];
        fp_idx = elem->file_idx;
        DHD_INFO(("%s(): fm_idx: %d fp_idx: %d path: %s\n",
                __FUNCTION__, fm_idx, fp_idx, elem->file_path[fp_idx]));

        /* delete oldest file */
        if (strlen(elem->file_path[fp_idx]) != 0) {
                if (dhd_file_delete(elem->file_path[fp_idx]) < 0) {
                        DHD_ERROR(("%s(): Failed to delete file: %s\n",
                                __FUNCTION__, elem->file_path[fp_idx]));
                } else {
                        DHD_ERROR(("%s(): Successed to delete file: %s\n",
                                __FUNCTION__, elem->file_path[fp_idx]));
                }
        }

        /* save dump file path */
        strncpy(elem->file_path[fp_idx], dump_path, DHD_DUMP_FILE_PATH_SIZE);
        elem->file_path[fp_idx][DHD_DUMP_FILE_PATH_SIZE - 1] = '\0';

        /* change file index to next file index */
        elem->file_idx = (elem->file_idx + 1) % DHD_DUMP_FILE_COUNT_MAX;
}
#endif /* DHD_DUMP_MNGR */

#ifdef DHD_MAP_LOGGING
/* Will be called from SMMU fault handler */
void
dhd_debug_info_dump(void)
{
        dhd_pub_t *dhdp = (dhd_pub_t *)g_dhd_pub;
        uint32 irq = (uint32)-1;

        DHD_ERROR(("%s: Trigger SMMU Fault\n", __FUNCTION__));
        dhdp->smmu_fault_occurred = TRUE;

        /* Disable PCIe IRQ */
        dhdpcie_get_pcieirq(dhdp->bus, &irq);
        if (irq != (uint32)-1) {
                disable_irq_nosync(irq);
        }

        DHD_OS_WAKE_LOCK(dhdp);
        dhd_prot_debug_info_print(dhdp);
        osl_dma_map_dump(dhdp->osh);
#ifdef DHD_MAP_PKTID_LOGGING
        dhd_pktid_logging_dump(dhdp);
#endif /* DHD_MAP_PKTID_LOGGING */
#ifdef DHD_FW_COREDUMP
        /* Load the dongle side dump to host memory */
        dhdp->memdump_enabled = DUMP_MEMONLY;
        dhdp->memdump_type = DUMP_TYPE_SMMU_FAULT;
        dhd_bus_mem_dump(dhdp);
#endif /* DHD_FW_COREDUMP */
        DHD_OS_WAKE_UNLOCK(dhdp);
}
EXPORT_SYMBOL(dhd_debug_info_dump);
#endif /* DHD_MAP_LOGGING */
int
dhd_get_host_whitelist_region(void *buf, uint len)
{
        dma_wl_addr_region_host_t *host_reg;
        uint64 wl_end;

        if ((wlreg_len_h == 0) && (wlreg_len_l == 0)) {
                return BCME_RANGE;
        }

        host_reg = (dma_wl_addr_region_host_t *)buf;
        wl_end = wlreg_len_h + wlreg_h;
        wl_end = (wl_end & MASK_32_BITS) << 32;
        wl_end += wlreg_l;
        wl_end +=  wlreg_len_l;
        /* Now write whitelist region(s) */
        host_reg->hreg_start.addr_low = wlreg_l;
        host_reg->hreg_start.addr_high = wlreg_h;
        host_reg->hreg_end.addr_low = EXTRACT_LOW32(wl_end);
        host_reg->hreg_end.addr_high = EXTRACT_HIGH32(wl_end);
        return BCME_OK;
}

#ifdef SUPPORT_SET_TID
/*
 * Set custom TID value for UDP frame based on UID value.
 * This will be triggered by android private command below.
 * DRIVER SET_TID <Mode:uint8> <Target UID:uint32> <Custom TID:uint8>
 * Mode 0(SET_TID_OFF) : Disable changing TID
 * Mode 1(SET_TID_ALL_UDP) : Change TID for all UDP frames
 * Mode 2(SET_TID_BASED_ON_UID) : Change TID for UDP frames based on target UID
*/
void
dhd_set_tid_based_on_uid(dhd_pub_t *dhdp, void *pkt)
{
        struct ether_header *eh = NULL;
        struct sock *sk = NULL;
        uint8 *pktdata = NULL;
        uint8 *ip_hdr = NULL;
        uint8 cur_prio;
        uint8 prio;
        uint32 uid;

        if (dhdp->tid_mode == SET_TID_OFF) {
                return;
        }

        pktdata = (uint8 *)PKTDATA(dhdp->osh, pkt);
        eh = (struct ether_header *) pktdata;
        ip_hdr = (uint8 *)eh + ETHER_HDR_LEN;

        if (IPV4_PROT(ip_hdr) != IP_PROT_UDP) {
                return;
        }

        cur_prio = PKTPRIO(pkt);
        prio = dhdp->target_tid;
        uid = dhdp->target_uid;

        if ((cur_prio == prio) ||
                (cur_prio != PRIO_8021D_BE)) {
                        return;
        }

        sk = ((struct sk_buff*)(pkt))->sk;

        if ((dhdp->tid_mode == SET_TID_ALL_UDP) ||
                (sk && (uid == __kuid_val(sock_i_uid(sk))))) {
                PKTSETPRIO(pkt, prio);
        }
}
#endif /* SUPPORT_SET_TID */
#ifdef DHDTCPSYNC_FLOOD_BLK
static void dhd_blk_tsfl_handler(struct work_struct * work)
{
        dhd_if_t *ifp = NULL;
        dhd_pub_t *dhdp = NULL;
        /* Ignore compiler warnings due to -Werror=cast-qual */
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
#endif /* STRICT_GCC_WARNINGS  && __GNUC__ */
        ifp = container_of(work, dhd_if_t, blk_tsfl_work);
#if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__)
#pragma GCC diagnostic pop
#endif /* STRICT_GCC_WARNINGS  && __GNUC__ */
        if (ifp) {
                dhdp = &ifp->info->pub;
                if (dhdp) {
                        if ((dhdp->op_mode & DHD_FLAG_P2P_GO_MODE)||
                                (dhdp->op_mode & DHD_FLAG_HOSTAP_MODE)) {
                                DHD_ERROR(("Disassoc due to TCP SYNC FLOOD ATTACK\n"));
                                wl_cfg80211_del_all_sta(ifp->net, WLAN_REASON_UNSPECIFIED);
                        } else if ((dhdp->op_mode & DHD_FLAG_P2P_GC_MODE)||
                                        (dhdp->op_mode & DHD_FLAG_STA_MODE)) {
                                DHD_ERROR(("Diconnect due to TCP SYNC FLOOD ATTACK\n"));
                                wl_cfg80211_disassoc(ifp->net);
                        }
                }
        }
}
void dhd_reset_tcpsync_info_by_ifp(dhd_if_t *ifp)
{
        ifp->tsync_rcvd = 0;
        ifp->tsyncack_txed = 0;
        ifp->last_sync = DIV_U64_BY_U32(OSL_LOCALTIME_NS(), NSEC_PER_SEC);
}
void dhd_reset_tcpsync_info_by_dev(struct net_device *dev)
{
        dhd_if_t *ifp = NULL;
        if (dev) {
                ifp = DHD_DEV_IFP(dev);
        }
        if (ifp) {
                ifp->tsync_rcvd = 0;
                ifp->tsyncack_txed = 0;
                ifp->last_sync = DIV_U64_BY_U32(OSL_LOCALTIME_NS(), NSEC_PER_SEC);
        }
}
#endif /* DHDTCPSYNC_FLOOD_BLK */