dhd: import wifi and bluetooth firmware

[GitHub/LineageOS/G12/android_hardware_amlogic_kernel-modules_dhd-driver.git] / bcmdhd_1_201_59_x / dhd_linux.c

/*
 * Broadcom Dongle Host Driver (DHD), Linux-specific network interface
 * Basically selected code segments from usb-cdc.c and usb-rndis.c
 *
 * $Copyright Open Broadcom Corporation$
 *
 * $Id: dhd_linux.c 505753 2014-10-01 01:40:15Z $
 */

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


#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 <net/addrconf.h>
#ifdef ENABLE_ADAPTIVE_SCHED
#include <linux/cpufreq.h>
#endif /* ENABLE_ADAPTIVE_SCHED */

#include <asm/uaccess.h>
#include <asm/unaligned.h>

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

#include <proto/ethernet.h>
#include <proto/bcmevent.h>
#include <proto/vlan.h>
#ifdef DHD_L2_FILTER
#include <proto/bcmicmp.h>
#endif
#include <proto/802.3.h>

#include <dngl_stats.h>
#include <dhd_linux_wq.h>
#include <dhd.h>
#include <dhd_linux.h>
#ifdef PCIE_FULL_DONGLE
#include <dhd_flowring.h>
#endif
#include <dhd_bus.h>
#include <dhd_proto.h>
#include <dhd_config.h>
#include <dhd_dbg.h>
#ifdef CONFIG_HAS_WAKELOCK
#include <linux/wakelock.h>
#endif
#ifdef WL_CFG80211
#include <wl_cfg80211.h>
#endif
#ifdef P2PONEINT
#include <wl_cfgp2p.h>
#endif
#ifdef PNO_SUPPORT
#include <dhd_pno.h>
#endif
#ifdef WLBTAMP
#include <proto/802.11_bta.h>
#include <proto/bt_amp_hci.h>
#include <dhd_bta.h>
#endif

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

#ifdef DHD_WMF
#include <dhd_wmf_linux.h>
#endif /* DHD_WMF */

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

#if defined(DHD_TCP_WINSIZE_ADJUST)
#include <linux/tcp.h>
#include <net/tcp.h>
#endif /* DHD_TCP_WINSIZE_ADJUST */

#ifdef WLMEDIA_HTSF
#include <linux/time.h>
#include <htsf.h>

#define HTSF_MINLEN 200    /* min. packet length to timestamp */
#define HTSF_BUS_DELAY 150 /* assume a fix propagation in us  */
#define TSMAX  1000        /* max no. of timing record kept   */
#define NUMBIN 34

static uint32 tsidx = 0;
static uint32 htsf_seqnum = 0;
uint32 tsfsync;
struct timeval tsync;
static uint32 tsport = 5010;

typedef struct histo_ {
        uint32 bin[NUMBIN];
} histo_t;

#if !ISPOWEROF2(DHD_SDALIGN)
#error DHD_SDALIGN is not a power of 2!
#endif

static histo_t vi_d1, vi_d2, vi_d3, vi_d4;
#endif /* WLMEDIA_HTSF */

#if defined(DHD_TCP_WINSIZE_ADJUST)
#define MIN_TCP_WIN_SIZE 18000
#define WIN_SIZE_SCALE_FACTOR 2
#define MAX_TARGET_PORTS 5

static uint target_ports[MAX_TARGET_PORTS] = {20, 0, 0, 0, 0};
static uint dhd_use_tcp_window_size_adjust = FALSE;
static void dhd_adjust_tcp_winsize(int op_mode, struct sk_buff *skb);
#endif /* DHD_TCP_WINSIZE_ADJUST */


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


#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 BCM_FD_AGGR
#include <bcm_rpc.h>
#include <bcm_rpc_tp.h>
#endif
#ifdef PROP_TXSTATUS
#include <wlfc_proto.h>
#include <dhd_wlfc.h>
#endif

#include <wl_android.h>

#if defined(CUSTOMER_HW20) && defined(WLANAUDIO)
#include <sdaudio.h>
#endif /* CUSTOMER_HW20 && WLANAUDIO */

#ifdef CUSTOMER_HW_AMLOGIC
#include <linux/amlogic/wifi_dt.h>
#endif

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


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 */

#ifdef CONFIG_IPV6
static 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

#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(FORCE_WOWLAN)
extern void dhd_enable_oob_intr(struct dhd_bus *bus, bool enable);
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && (1)
static void dhd_hang_process(void *dhd_info, void *event_data, u8 event);
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0))
MODULE_LICENSE("GPL v2");
#endif /* LinuxVer */

#include <dhd_bus.h>

#ifdef BCM_FD_AGGR
#define DBUS_RX_BUFFER_SIZE_DHD(net)    (BCM_RPC_TP_DNGL_AGG_MAX_BYTE)
#else
#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 /* BCM_FD_AGGR */

#ifdef PROP_TXSTATUS
extern bool dhd_wlfc_skip_fc(void);
extern void dhd_wlfc_plat_init(void *dhd);
extern void dhd_wlfc_plat_deinit(void *dhd);
#endif /* PROP_TXSTATUS */

#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) */

#if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND)
#include <linux/earlysuspend.h>
#endif /* defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND) */

extern int dhd_get_suspend_bcn_li_dtim(dhd_pub_t *dhd);

#ifdef PKT_FILTER_SUPPORT
extern void dhd_pktfilter_offload_set(dhd_pub_t * dhd, char *arg);
extern void dhd_pktfilter_offload_enable(dhd_pub_t * dhd, char *arg, int enable, int master_mode);
extern void dhd_pktfilter_offload_delete(dhd_pub_t *dhd, int id);
#endif


#ifdef READ_MACADDR
extern int dhd_read_macaddr(struct dhd_info *dhd);
#else
static inline int dhd_read_macaddr(struct dhd_info *dhd) { return 0; }
#endif
#ifdef WRITE_MACADDR
extern int dhd_write_macaddr(struct ether_addr *mac);
#else
static inline int dhd_write_macaddr(struct ether_addr *mac) { return 0; }
#endif


#if defined(SOFTAP_TPUT_ENHANCE)
extern void dhd_bus_setidletime(dhd_pub_t *dhdp, int idle_time);
extern void dhd_bus_getidletime(dhd_pub_t *dhdp, int* idle_time);
#endif /* SOFTAP_TPUT_ENHANCE */


#ifdef SET_RPS_CPUS
int custom_rps_map_set(struct netdev_rx_queue *queue, char *buf, size_t len);
void custom_rps_map_clear(struct netdev_rx_queue *queue);
#ifdef CONFIG_MACH_UNIVERSAL5433
#define RPS_CPUS_MASK "10"
#else
#define RPS_CPUS_MASK "6"
#endif /* CONFIG_MACH_UNIVERSAL5433 */
#endif /* SET_RPS_CPUS */

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,
};


typedef struct dhd_if_event {
        struct list_head        list;
        wl_event_data_if_t      event;
        char                    name[IFNAMSIZ+1];
        uint8                   mac[ETHER_ADDR_LEN];
} dhd_if_event_t;

/* Interface control information */
typedef struct dhd_if {
        struct dhd_info *info;                  /* back pointer to dhd_info */
        /* OS/stack specifics */
        struct net_device *net;
        int                             idx;                    /* iface idx in dongle */
        uint                    subunit;                /* subunit */
        uint8                   mac_addr[ETHER_ADDR_LEN];       /* assigned MAC address */
        bool                    set_macaddress;
        bool                    set_multicast;
        uint8                   bssidx;                 /* bsscfg index for the interface */
        bool                    attached;               /* Delayed attachment when unset */
        bool                    txflowcontrol;  /* Per interface flow control indicator */
        char                    name[IFNAMSIZ+1]; /* linux interface name */
        struct net_device_stats stats;
#ifdef DHD_WMF
        dhd_wmf_t               wmf;            /* per bsscfg wmf setting */
#endif /* DHD_WMF */
#ifdef PCIE_FULL_DONGLE
        struct list_head sta_list;              /* sll of associated stations */
#if !defined(BCM_GMAC3)
        spinlock_t      sta_list_lock;          /* lock for manipulating sll */
#endif /* ! BCM_GMAC3 */
#endif /* PCIE_FULL_DONGLE */
        uint32  ap_isolate;                     /* ap-isolation settings */
} dhd_if_t;

#ifdef WLMEDIA_HTSF
typedef struct {
        uint32 low;
        uint32 high;
} tsf_t;

typedef struct {
        uint32 last_cycle;
        uint32 last_sec;
        uint32 last_tsf;
        uint32 coef;     /* scaling factor */
        uint32 coefdec1; /* first decimal  */
        uint32 coefdec2; /* second decimal */
} htsf_t;

typedef struct {
        uint32 t1;
        uint32 t2;
        uint32 t3;
        uint32 t4;
} tstamp_t;

static tstamp_t ts[TSMAX];
static tstamp_t maxdelayts;
static uint32 maxdelay = 0, tspktcnt = 0, maxdelaypktno = 0;

#endif /* WLMEDIA_HTSF */

struct ipv6_work_info_t {
        uint8                   if_idx;
        char                    ipv6_addr[16];
        unsigned long           event;
};

#if defined(CUSTOMER_HW20) && defined(WLANAUDIO)
#define MAX_WLANAUDIO_BLACKLIST 4

struct wlanaudio_blacklist {
        bool is_blacklist;
        uint32 cnt;
        ulong txfail_jiffies;
        struct ether_addr blacklist_addr;
};
#endif /* CUSTOMER_HW20 && WLANAUDIO */

/* When Perimeter locks are deployed, any blocking calls must be preceeded
 * with a PERIM UNLOCK and followed by a PERIM LOCK.
 * Examples of blocking calls are: schedule_timeout(), down_interruptible(),
 * wait_event_timeout().
 */

/* Local private structure (extension of pub) */
typedef struct dhd_info {
#if defined(WL_WIRELESS_EXT)
        wl_iw_t         iw;             /* wireless extensions state (must be first) */
#endif /* defined(WL_WIRELESS_EXT) */
        dhd_pub_t pub;
        dhd_if_t *iflist[DHD_MAX_IFS]; /* for supporting multiple interfaces */

        void *adapter;                  /* adapter information, interrupt, fw path etc. */
        char fw_path[PATH_MAX];         /* path to firmware image */
        char nv_path[PATH_MAX];         /* path to nvram vars file */
        char conf_path[PATH_MAX];       /* path to config vars file */

        struct semaphore proto_sem;
#ifdef PROP_TXSTATUS
        spinlock_t      wlfc_spinlock;

#endif /* PROP_TXSTATUS */
#ifdef WLMEDIA_HTSF
        htsf_t  htsf;
#endif
        wait_queue_head_t ioctl_resp_wait;
        uint32  default_wd_interval;

        struct timer_list timer;
        bool wd_timer_valid;
        struct tasklet_struct tasklet;
        spinlock_t      sdlock;
        spinlock_t      txqlock;
        spinlock_t      dhd_lock;

        struct semaphore sdsem;
        tsk_ctl_t       thr_dpc_ctl;
        tsk_ctl_t       thr_wdt_ctl;

        tsk_ctl_t       thr_rxf_ctl;
        spinlock_t      rxf_lock;
        bool            rxthread_enabled;

        /* Wakelocks */
#if defined(CONFIG_HAS_WAKELOCK) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
        struct wake_lock wl_wifi;   /* Wifi wakelock */
        struct wake_lock wl_rxwake; /* Wifi rx wakelock */
        struct wake_lock wl_ctrlwake; /* Wifi ctrl wakelock */
        struct wake_lock wl_wdwake; /* Wifi wd wakelock */
#ifdef BCMPCIE_OOB_HOST_WAKE
        struct wake_lock wl_intrwake; /* Host wakeup wakelock */
#endif /* BCMPCIE_OOB_HOST_WAKE */
#endif /* CONFIG_HAS_WAKELOCK && LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) */

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
        /* net_device interface lock, prevent race conditions among net_dev interface
         * calls and wifi_on or wifi_off
         */
        struct mutex dhd_net_if_mutex;
        struct mutex dhd_suspend_mutex;
#endif
        spinlock_t wakelock_spinlock;
        uint32 wakelock_counter;
        int wakelock_wd_counter;
        int wakelock_rx_timeout_enable;
        int wakelock_ctrl_timeout_enable;
        bool waive_wakelock;
        uint32 wakelock_before_waive;

        /* Thread to issue ioctl for multicast */
        wait_queue_head_t ctrl_wait;
        atomic_t pend_8021x_cnt;
        dhd_attach_states_t dhd_state;
#ifdef SHOW_LOGTRACE
        dhd_event_log_t event_data;
#endif /* SHOW_LOGTRACE */

#if defined(CONFIG_HAS_EARLYSUSPEND) && defined(DHD_USE_EARLYSUSPEND)
        struct early_suspend early_suspend;
#endif /* CONFIG_HAS_EARLYSUSPEND && DHD_USE_EARLYSUSPEND */

#ifdef ARP_OFFLOAD_SUPPORT
        u32 pend_ipaddr;
#endif /* ARP_OFFLOAD_SUPPORT */
#ifdef BCM_FD_AGGR
        void *rpc_th;
        void *rpc_osh;
        struct timer_list rpcth_timer;
        bool rpcth_timer_active;
        bool fdaggr;
#endif
#ifdef DHDTCPACK_SUPPRESS
        spinlock_t      tcpack_lock;
#endif /* DHDTCPACK_SUPPRESS */
        void                    *dhd_deferred_wq;
#ifdef DEBUG_CPU_FREQ
        struct notifier_block freq_trans;
        int __percpu *new_freq;
#endif
        unsigned int unit;
        struct notifier_block pm_notifier;
#if defined(CUSTOMER_HW20) && defined(WLANAUDIO)
        struct wlanaudio_blacklist wlanaudio_blist[MAX_WLANAUDIO_BLACKLIST];
        bool is_wlanaudio_blist;
#endif /* CUSTOMER_HW20 && WLANAUDIO */
} dhd_info_t;

#define DHDIF_FWDER(dhdif)      FALSE

/* 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 config_path[MOD_PARAM_PATHLEN];

/* 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)) */

/* 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 CONFIG_IPV6
static void dhd_inet6_work_handler(void *dhd_info, void *event_data, u8 event);
#endif

#ifdef WL_CFG80211
extern void dhd_netdev_free(struct net_device *ndev);
#endif /* WL_CFG80211 */

/* Error bits */
module_param(dhd_msg_level, int, 0);
#if defined(WL_WIRELESS_EXT)
module_param(iw_msg_level, int, 0);
#endif
#ifdef WL_CFG80211
module_param(wl_dbg_level, int, 0);
#endif
module_param(android_msg_level, int, 0);
module_param(config_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 */

uint dhd_arp_mode = ARP_OL_AGENT | ARP_OL_PEER_AUTO_REPLY;

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);
module_param_string(config_path, config_path, MOD_PARAM_PATHLEN, 0);

/* 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);

#if defined(DHD_DEBUG)
/* Console poll interval */
uint dhd_console_ms = 0;
module_param(dhd_console_ms, uint, 0644);
#endif /* defined(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

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

/* Pkt filter mode control */
uint dhd_master_mode = FALSE;
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);

int passive_channel_skip = 0;
module_param(passive_channel_skip, int, (S_IRUSR|S_IWUSR));

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

/* 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(CUSTOMER_HW20) && defined(WLANAUDIO)
dhd_info_t *dhd_global = NULL;
#endif /* CUSTOMER_HW20 && WLANAUDIO */



/* 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)
#define DHD_PERIM_LOCK_ALL()                do { /* noop */ } while (0)
#define DHD_PERIM_UNLOCK_ALL()              do { /* noop */ } while (0)

#ifdef PCIE_FULL_DONGLE
#if defined(BCM_GMAC3)
#define DHD_IF_STA_LIST_LOCK_INIT(ifp)      do { /* noop */ } while (0)
#define DHD_IF_STA_LIST_LOCK(ifp, flags)    ({ BCM_REFERENCE(flags); })
#define DHD_IF_STA_LIST_UNLOCK(ifp, flags)  ({ BCM_REFERENCE(flags); })
#else /* ! BCM_GMAC3 */
#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))
#endif /* ! BCM_GMAC3 */
#endif /* PCIE_FULL_DONGLE */

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

/* 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;

/* 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);

#ifdef BCMDBGFS
extern void dhd_dbg_init(dhd_pub_t *dhdp);
extern void dhd_dbg_remove(void);
#endif /* BCMDBGFS */

#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 */
uint dhd_use_idsup = 0;
module_param(dhd_use_idsup, uint, 0);
#endif /* BCMSUP_4WAY_HANDSHAKE */

extern char dhd_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);

#ifdef WLMEDIA_HTSF
void htsf_update(dhd_info_t *dhd, void *data);
tsf_t prev_tsf, cur_tsf;

uint32 dhd_get_htsf(dhd_info_t *dhd, int ifidx);
static int dhd_ioctl_htsf_get(dhd_info_t *dhd, int ifidx);
static void dhd_dump_latency(void);
static void dhd_htsf_addtxts(dhd_pub_t *dhdp, void *pktbuf);
static void dhd_htsf_addrxts(dhd_pub_t *dhdp, void *pktbuf);
static void dhd_dump_htsfhisto(histo_t *his, char *s);
#endif /* WLMEDIA_HTSF */

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


#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,
                             wl_event_msg_t *event_ptr, void **data_ptr);
#ifdef DHD_UNICAST_DHCP
static const uint8 llc_snap_hdr[SNAP_HDR_LEN] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00};
static int dhd_get_pkt_ip_type(dhd_pub_t *dhd, void *skb, uint8 **data_ptr,
        int *len_ptr, uint8 *prot_ptr);
static int dhd_get_pkt_ether_type(dhd_pub_t *dhd, void *skb, uint8 **data_ptr,
        int *len_ptr, uint16 *et_ptr, bool *snap_ptr);

static int dhd_convert_dhcp_broadcast_ack_to_unicast(dhd_pub_t *pub, void *pktbuf, int ifidx);
#endif /* DHD_UNICAST_DHCP */
#ifdef DHD_L2_FILTER
static int dhd_l2_filter_block_ping(dhd_pub_t *pub, void *pktbuf, int ifidx);
#endif
#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;
        dhd_info_t *dhdinfo = (dhd_info_t*)container_of(nfb, struct dhd_info, pm_notifier);

        BCM_REFERENCE(dhdinfo);
        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)
#ifdef 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
#endif /* defined(SUPPORT_P2P_GO_PS) */

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

        return ret;
}

static struct notifier_block dhd_pm_notifier = {
        .notifier_call = dhd_pm_callback,
        .priority = 10
};
/* 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 */
} 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)

/** 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;
}

/** 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;
}

#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 = {
#if defined(BCM_GMAC3)
        .fwdh = FWDER_NULL,
#endif
        .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 = {
#if defined(BCM_GMAC3)
        .fwdh = FWDER_NULL,
#endif
#ifdef WMF
        .wmf = { .wmf_enable = TRUE },
#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. */

/** Fetch the dhd_if object, given the interface index in the dhd. */
static inline dhd_if_t *dhd_get_ifp(dhd_pub_t *dhdp, uint32 ifidx);

/** 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);
static void dhd_sta_pool_clear(dhd_pub_t *dhdp, int max_sta);


/* 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];
}

/** 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));
        id16_map_free(dhdp->staid_allocator, sta->idx);
        for (prio = 0; prio < (int)NUMPRIO; prio++)
                sta->flowid[prio] = FLOWID_INVALID;
        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));
        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);

        list_for_each_entry_safe(sta, next, &ifp->sta_list, list) {
#if defined(BCM_GMAC3)
                if (ifp->fwdh) {
                        /* Remove sta from WOFA forwarder. */
                        fwder_deassoc(ifp->fwdh, (uint16 *)(sta->ea.octet), (wofa_t)sta);
                }
#endif /* BCM_GMAC3 */
                list_del(&sta->list);
                dhd_sta_free(&ifp->info->pub, sta);
        }

        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)
{
#if defined(BCM_GMAC3)

        if (ifp && (ifp->fwdh != FWDER_NULL)) {
                dhd_sta_t *sta, *next;
                unsigned long flags;

                DHD_IF_STA_LIST_LOCK(ifp, flags);

                list_for_each_entry_safe(sta, next, &ifp->sta_list, list) {
                        /* Remove any sta entry from WOFA forwarder. */
                        fwder_flush(ifp->fwdh, (wofa_t)sta);
                }

                DHD_IF_STA_LIST_UNLOCK(ifp, flags);
        }
#endif /* BCM_GMAC3 */
}

/** 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, 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];
                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, 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];
                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);

        list_for_each_entry(sta, &ifp->sta_list, list) {
                if (!memcmp(sta->ea.octet, ea, ETHER_ADDR_LEN)) {
                        DHD_IF_STA_LIST_UNLOCK(ifp, flags);
                        return sta;
                }
        }

        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;

        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);

#if defined(BCM_GMAC3)
        if (ifp->fwdh) {
                ASSERT(ISALIGNED(ea, 2));
                /* Add sta to WOFA forwarder. */
                fwder_reassoc(ifp->fwdh, (uint16 *)ea, (wofa_t)sta);
        }
#endif /* BCM_GMAC3 */

        DHD_IF_STA_LIST_UNLOCK(ifp, flags);

        return sta;
}

/** 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);

        list_for_each_entry_safe(sta, next, &ifp->sta_list, list) {
                if (!memcmp(sta->ea.octet, ea, ETHER_ADDR_LEN)) {
#if defined(BCM_GMAC3)
                        if (ifp->fwdh) { /* Found a sta, remove from WOFA forwarder. */
                                ASSERT(ISALIGNED(ea, 2));
                                fwder_deassoc(ifp->fwdh, (uint16 *)ea, (wofa_t)sta);
                        }
#endif /* BCM_GMAC3 */
                        list_del(&sta->list);
                        dhd_sta_free(&ifp->info->pub, sta);
                }
        }

        DHD_IF_STA_LIST_UNLOCK(ifp, flags);

        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;
}
#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; }
void dhd_del_sta(void *pub, int ifidx, void *ea) {}
#endif /* PCIE_FULL_DONGLE */


/* Returns dhd iflist index correspondig 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);
#ifdef RXF_DEQUEUE_ON_BUSY
                DHD_TRACE(("dhd_rxf_enqueue: pktbuf not consumed %p, store idx %d sent idx %d\n",
                        skb, store_idx, sent_idx));
                return BCME_BUSY;
#else /* RXF_DEQUEUE_ON_BUSY */
                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
                return BCME_ERROR;
#endif /* RXF_DEQUEUE_ON_BUSY */
        }
        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)
{
#ifndef CUSTOMER_HW10
        dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
#endif /* !CUSTOMER_HW10 */

        if (prepost) { /* pre process */
                dhd_read_macaddr(dhd);
        } else { /* post process */
                dhd_write_macaddr(&dhd->pub.mac);
        }

        return 0;
}

#if defined(PKT_FILTER_SUPPORT) && !defined(GAN_LITE_NAT_KEEPALIVE_FILTER)
static bool
_turn_on_arp_filter(dhd_pub_t *dhd, int op_mode)
{
        bool _apply = FALSE;
        /* In case of IBSS mode, apply arp pkt filter */
        if (op_mode & 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 ((dhd->arp_version == 1) &&
                (op_mode & (DHD_FLAG_P2P_GC_MODE | DHD_FLAG_P2P_GO_MODE))) {
                _apply = TRUE;
                goto exit;
        }

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

#if defined(CUSTOM_PLATFORM_NV_TEGRA)
#ifdef PKT_FILTER_SUPPORT
void
dhd_set_packet_filter_mode(struct net_device *dev, char *command)
{
        dhd_info_t *dhdi = *(dhd_info_t **)netdev_priv(dev);

        dhdi->pub.pkt_filter_mode = bcm_strtoul(command, &command, 0);
}

int
dhd_set_packet_filter_ports(struct net_device *dev, char *command)
{
        int i = 0, error = BCME_OK, count = 0, get_count = 0, action = 0;
        uint16 portnum = 0, *ports = NULL, get_ports[WL_PKT_FILTER_PORTS_MAX];
        dhd_info_t *dhdi = *(dhd_info_t **)netdev_priv(dev);
        dhd_pub_t *dhdp = &dhdi->pub;
        char iovbuf[WLC_IOCTL_SMLEN];

        /* get action */
        action = bcm_strtoul(command, &command, 0);
        if (action > PKT_FILTER_PORTS_MAX)
                return BCME_BADARG;

        if (action == PKT_FILTER_PORTS_LOOPBACK) {
                /* echo the loopback value if port filter is supported else error */
                bcm_mkiovar("cap", NULL, 0, iovbuf, sizeof(iovbuf));
                error = dhd_wl_ioctl_cmd(dhdp, WLC_GET_VAR, iovbuf, sizeof(iovbuf), FALSE, 0);
                if (error < 0) {
                        DHD_ERROR(("%s: Get Capability failed (error=%d)\n", __FUNCTION__, error));
                        return error;
                }

                if (strstr(iovbuf, "pktfltr2"))
                        return bcm_strtoul(command, &command, 0);
                else {
                        DHD_ERROR(("%s: pktfltr2 is not supported\n", __FUNCTION__));
                        return BCME_UNSUPPORTED;
                }
        }

        if (action == PKT_FILTER_PORTS_CLEAR) {
                /* action 0 is clear all ports */
                dhdp->pkt_filter_ports_count = 0;
                bzero(dhdp->pkt_filter_ports, sizeof(dhdp->pkt_filter_ports));
        }
        else {
                portnum = bcm_strtoul(command, &command, 0);
                if (portnum == 0) {
                        /* no ports to add or remove */
                        return BCME_BADARG;
                }

                /* get configured ports */
                count = dhdp->pkt_filter_ports_count;
                ports = dhdp->pkt_filter_ports;

                if (action == PKT_FILTER_PORTS_ADD) {
                        /* action 1 is add ports */

                        /* copy new ports */
                        while ((portnum != 0) && (count < WL_PKT_FILTER_PORTS_MAX)) {
                                for (i = 0; i < count; i++) {
                                        /* duplicate port */
                                        if (portnum == ports[i])
                                                break;
                                }
                                if (portnum != ports[i])
                                        ports[count++] = portnum;
                                portnum = bcm_strtoul(command, &command, 0);
                        }
                } else if ((action == PKT_FILTER_PORTS_DEL) && (count > 0)) {
                        /* action 2 is remove ports */
                        bcopy(dhdp->pkt_filter_ports, get_ports, count * sizeof(uint16));
                        get_count = count;

                        while (portnum != 0) {
                                count = 0;
                                for (i = 0; i < get_count; i++) {
                                        if (portnum != get_ports[i])
                                                ports[count++] = get_ports[i];
                                }
                                get_count = count;
                                bcopy(ports, get_ports, count * sizeof(uint16));
                                portnum = bcm_strtoul(command, &command, 0);
                        }
                }
                dhdp->pkt_filter_ports_count = count;
        }
        return error;
}

static void
dhd_enable_packet_filter_ports(dhd_pub_t *dhd, bool enable)
{
        int error = 0;
        wl_pkt_filter_ports_t *portlist = NULL;
        const uint pkt_filter_ports_buf_len = sizeof("pkt_filter_ports")
                + WL_PKT_FILTER_PORTS_FIXED_LEN + (WL_PKT_FILTER_PORTS_MAX * sizeof(uint16));
        char pkt_filter_ports_buf[pkt_filter_ports_buf_len];
        char iovbuf[pkt_filter_ports_buf_len];

        DHD_TRACE(("%s: enable %d, in_suspend %d, mode %d, port count %d\n", __FUNCTION__,
                enable, dhd->in_suspend, dhd->pkt_filter_mode,
                dhd->pkt_filter_ports_count));

        bzero(pkt_filter_ports_buf, sizeof(pkt_filter_ports_buf));
        portlist = (wl_pkt_filter_ports_t*)pkt_filter_ports_buf;
        portlist->version = WL_PKT_FILTER_PORTS_VERSION;
        portlist->reserved = 0;

        if (enable) {
                if (!(dhd->pkt_filter_mode & PKT_FILTER_MODE_PORTS_ONLY))
                        return;

                /* enable port filter */
                dhd_master_mode |= PKT_FILTER_MODE_PORTS_ONLY;
                if (dhd->pkt_filter_mode & PKT_FILTER_MODE_FORWARD_ON_MATCH)
                        /* whitelist mode: FORWARD_ON_MATCH */
                        dhd_master_mode |= PKT_FILTER_MODE_FORWARD_ON_MATCH;
                else
                        /* blacklist mode: DISCARD_ON_MATCH */
                        dhd_master_mode &= ~PKT_FILTER_MODE_FORWARD_ON_MATCH;

                portlist->count = dhd->pkt_filter_ports_count;
                bcopy(dhd->pkt_filter_ports, portlist->ports,
                        dhd->pkt_filter_ports_count * sizeof(uint16));
        } else {
                /* disable port filter */
                portlist->count = 0;
                dhd_master_mode &= ~PKT_FILTER_MODE_PORTS_ONLY;
                dhd_master_mode |= PKT_FILTER_MODE_FORWARD_ON_MATCH;
        }

        DHD_INFO(("%s: update: mode %d, port count %d\n", __FUNCTION__, dhd_master_mode,
                portlist->count));

        /* update ports */
        bcm_mkiovar("pkt_filter_ports",
                (char*)portlist,
                (WL_PKT_FILTER_PORTS_FIXED_LEN + (portlist->count * sizeof(uint16))),
                iovbuf, sizeof(iovbuf));
        error = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
        if (error < 0)
                DHD_ERROR(("%s: set pkt_filter_ports failed %d\n", __FUNCTION__, error));

        /* update mode */
        bcm_mkiovar("pkt_filter_mode", (char*)&dhd_master_mode,
                sizeof(dhd_master_mode), iovbuf, sizeof(iovbuf));
        error = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
        if (error < 0)
                DHD_ERROR(("%s: set pkt_filter_mode failed %d\n", __FUNCTION__, error));

        return;
}
#endif /* PKT_FILTER_SUPPORT */
#endif /* defined(CUSTOM_PLATFORM_NV_TEGRA) */

void dhd_set_packet_filter(dhd_pub_t *dhd)
{
#ifdef PKT_FILTER_SUPPORT
        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]);
                }
        }
#endif /* PKT_FILTER_SUPPORT */
}

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

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

#if defined(CUSTOM_PLATFORM_NV_TEGRA)
        dhd_enable_packet_filter_ports(dhd, value);
#endif /* defined(CUSTOM_PLATFORM_NV_TEGRA) */

        /* 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);
                }
        }
#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; */
        char iovbuf[32];
        int bcn_li_dtim = 0; /* Default bcn_li_dtim in resume mode is 0 */
        uint roamvar = dhd->conf->roam_off_suspend;
        uint nd_ra_filter = 0;
        int ret = 0;

        if (!dhd)
                return -ENODEV;

        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 */
#ifndef SUPPORT_PM2_ONLY
        if (dhd->conf->pm >= 0)
                power_mode = dhd->conf->pm;
#endif /* SUPPORT_PM2_ONLY */
        if (dhd->up) {
                if (value && dhd->in_suspend) {
#ifdef PKT_FILTER_SUPPORT
                        dhd->early_suspended = 1;
#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 */

                        /* Enable packet filter, only allow unicast packet to send up */
                        dhd_enable_packet_filter(1, dhd);

                        /* 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.
                         */
                        bcn_li_dtim = dhd_get_suspend_bcn_li_dtim(dhd);
                        bcm_mkiovar("bcn_li_dtim", (char *)&bcn_li_dtim,
                                4, iovbuf, sizeof(iovbuf));
                        if (dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf),
                                TRUE, 0) < 0)
                                        DHD_ERROR(("%s: set dtim failed\n", __FUNCTION__));

                        /* Disable firmware roaming during suspend */
                        bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf, sizeof(iovbuf));
                        dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
                        if (FW_SUPPORTED(dhd, ndoe)) {
                                /* enable IPv6 RA filter in  firmware during suspend */
                                nd_ra_filter = 1;
                                bcm_mkiovar("nd_ra_filter_enable", (char *)&nd_ra_filter, 4,
                                        iovbuf, sizeof(iovbuf));
                                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                                        sizeof(iovbuf), TRUE, 0)) < 0)
                                        DHD_ERROR(("failed to set nd_ra_filter (%d)\n",
                                                ret));
                        }
                } else {
#ifdef PKT_FILTER_SUPPORT
                        dhd->early_suspended = 0;
#endif
                        /* Kernel resumed  */
                        DHD_ERROR(("%s: Remove extra suspend setting\n", __FUNCTION__));

#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 */
#ifdef PKT_FILTER_SUPPORT
                        /* disable pkt filter */
                        dhd_enable_packet_filter(0, dhd);
#endif /* PKT_FILTER_SUPPORT */

                        /* restore pre-suspend setting for dtim_skip */
                        bcm_mkiovar("bcn_li_dtim", (char *)&bcn_li_dtim,
                                4, iovbuf, sizeof(iovbuf));

                        dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
                        roamvar = dhd_roam_disable;
                        bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf, sizeof(iovbuf));
                        dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
                        if (FW_SUPPORTED(dhd, ndoe)) {
                                /* disable IPv6 RA filter in  firmware during suspend */
                                nd_ra_filter = 0;
                                bcm_mkiovar("nd_ra_filter_enable", (char *)&nd_ra_filter, 4,
                                        iovbuf, sizeof(iovbuf));
                                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                                        sizeof(iovbuf), TRUE, 0)) < 0)
                                        DHD_ERROR(("failed to set nd_ra_filter (%d)\n",
                                                ret));
                        }
                }
        }
        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 {
                wait_queue_head_t delay_wait;
                DECLARE_WAITQUEUE(wait, current);
                init_waitqueue_head(&delay_wait);
                add_wait_queue(&delay_wait, &wait);
                set_current_state(TASK_INTERRUPTIBLE);
                (void)schedule_timeout(1);
                remove_wait_queue(&delay_wait, &wait);
                set_current_state(TASK_RUNNING);
        }

        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]->name, name, IFNAMSIZ))
                                break;

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

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

int
dhd_ifidx2hostidx(dhd_info_t *dhd, int ifidx)
{
        int i = DHD_MAX_IFS;

        ASSERT(dhd);

        while (--i > 0)
                if (dhd->iflist[i] && (dhd->iflist[i]->idx == ifidx))
                                break;

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

        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
        uint32 allmulti, cnt;

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

        ASSERT(dhd && dhd->iflist[ifidx]);
        dev = dhd->iflist[ifidx]->net;
        if (!dev)
                return;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
        netif_addr_lock_bh(dev);
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
        cnt = netdev_mc_count(dev);
#else
        cnt = dev->mc_count;
#endif /* LINUX_VERSION_CODE */

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
        netif_addr_unlock_bh(dev);
#endif

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

        /* 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);


#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
        netif_addr_lock_bh(dev);
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
        netdev_for_each_mc_addr(ha, dev) {
                if (!cnt)
                        break;
                memcpy(bufp, ha->addr, ETHER_ADDR_LEN);
                bufp += ETHER_ADDR_LEN;
                cnt--;
        }
#else
        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_VERSION_CODE */

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
        netif_addr_unlock_bh(dev);
#endif

        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...
         */

        buflen = sizeof("allmulti") + sizeof(allmulti);
        if (!(buf = MALLOC(dhd->pub.osh, buflen))) {
                DHD_ERROR(("%s: out of memory for allmulti\n", dhd_ifname(&dhd->pub, ifidx)));
                return;
        }
        allmulti = htol32(allmulti);

        if (!bcm_mkiovar("allmulti", (void*)&allmulti, sizeof(allmulti), buf, buflen)) {
                DHD_ERROR(("%s: mkiovar failed for allmulti, datalen %d buflen %u\n",
                           dhd_ifname(&dhd->pub, ifidx), (int)sizeof(allmulti), buflen));
                MFREE(dhd->pub.osh, buf, buflen);
                return;
        }


        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 allmulti %d failed\n",
                           dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
        }

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

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

        allmulti = (dev->flags & IFF_PROMISC) ? TRUE : FALSE;

        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)
{
        char buf[32];
        wl_ioctl_t ioc;
        int ret;

        if (!bcm_mkiovar("cur_etheraddr", (char*)addr, ETHER_ADDR_LEN, buf, 32)) {
                DHD_ERROR(("%s: mkiovar failed for cur_etheraddr\n", dhd_ifname(&dhd->pub, ifidx)));
                return -1;
        }
        memset(&ioc, 0, sizeof(ioc));
        ioc.cmd = WLC_SET_VAR;
        ioc.buf = buf;
        ioc.len = 32;
        ioc.set = TRUE;

        ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
        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

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;
        struct net_device *ndev;
        int ifidx, bssidx;
        int ret;
#if 1 && (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 11, 0))
        struct wireless_dev *vwdev, *primary_wdev;
        struct net_device *primary_ndev;
#endif /* OEM_ANDROID && (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 11, 0)) */

        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));

        ndev = dhd_allocate_if(&dhd->pub, ifidx, if_event->name,
                if_event->mac, bssidx, TRUE);
        if (!ndev) {
                DHD_ERROR(("%s: net device alloc failed  \n", __FUNCTION__));
                goto done;
        }

#if 1 && (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 11, 0))
        vwdev = kzalloc(sizeof(*vwdev), GFP_KERNEL);
        if (unlikely(!vwdev)) {
                WL_ERR(("Could not allocate wireless device\n"));
                goto done;
        }
        primary_ndev = dhd->pub.info->iflist[0]->net;
        primary_wdev = ndev_to_wdev(primary_ndev);
        vwdev->wiphy = primary_wdev->wiphy;
        vwdev->iftype = if_event->event.role;
        vwdev->netdev = ndev;
        ndev->ieee80211_ptr = vwdev;
        SET_NETDEV_DEV(ndev, wiphy_dev(vwdev->wiphy));
        DHD_ERROR(("virtual interface(%s) is created\n", if_event->name));
#endif /* OEM_ANDROID && (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 11, 0)) */

        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;
        }
#ifdef PCIE_FULL_DONGLE
        /* Turn on AP isolation in the firmware for interfaces operating in AP mode */
        if (FW_SUPPORTED((&dhd->pub), ap) && !(DHD_IF_ROLE_STA(if_event->event.role))) {
                char iovbuf[WLC_IOCTL_SMLEN];
                uint32 var_int =  1;

                memset(iovbuf, 0, sizeof(iovbuf));
                bcm_mkiovar("ap_isolate", (char *)&var_int, 4, iovbuf, sizeof(iovbuf));
                ret = dhd_wl_ioctl_cmd(&dhd->pub, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, ifidx);

                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_remove_if(&dhd->pub, ifidx, TRUE);

        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;
        dhd_if_t *ifp = event_info;
        int ifidx;

        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);

#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 */

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

        ifidx = ifp->idx;


        _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_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 *)dhd->iflist[ifidx],
                DHD_WQ_WORK_SET_MCAST_LIST, dhd_set_mcast_list_handler, DHD_WORK_PRIORITY_LOW);
}

#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 */

#if defined(DHD_RX_DUMP) || defined(DHD_TX_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" },
        { ETHER_TYPE_WAI, "WAPI" },
        { 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 || DHD_TX_DUMP */

#if defined(DHD_TX_DUMP)
void
dhd_tx_dump(osl_t *osh, void *pkt)
{
        uint8 *dump_data;
        uint16 protocol;
        struct ether_header *eh;

        dump_data = PKTDATA(osh, pkt);
        eh = (struct ether_header *) dump_data;
        protocol = ntoh16(eh->ether_type);

        DHD_ERROR(("TX DUMP - %s\n", _get_packet_type_str(protocol)));

        if (protocol == ETHER_TYPE_802_1X) {
                DHD_ERROR(("ETHER_TYPE_802_1X [TX]: ver %d, type %d, replay %d\n",
                        dump_data[14], dump_data[15], dump_data[30]));
        }

#if defined(DHD_TX_FULL_DUMP)
        {
                int i;
                uint datalen;
                datalen = PKTLEN(osh, pkt);

                for (i = 0; i < datalen; i++) {
                        DHD_ERROR(("%02X ", dump_data[i]));
                        if ((i & 15) == 15)
                                printk("\n");
                }
                DHD_ERROR(("\n"));
        }
#endif /* DHD_TX_FULL_DUMP */
}
#endif /* DHD_TX_DUMP */

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;

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

#ifdef DHD_UNICAST_DHCP
        /* if dhcp_unicast is enabled, we need to convert the */
        /* broadcast DHCP ACK/REPLY packets to Unicast. */
        if (dhdp->dhcp_unicast) {
            dhd_convert_dhcp_broadcast_ack_to_unicast(dhdp, pktbuf, ifidx);
        }
#endif /* DHD_UNICAST_DHCP */
        /* 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)
                        atomic_inc(&dhd->pend_8021x_cnt);
        } else {
                        PKTFREE(dhd->pub.osh, pktbuf, TRUE);
                        return BCME_ERROR;
        }

        /* Look into the packet and update the packet priority */
#ifndef PKTPRIO_OVERRIDE
        if (PKTPRIO(pktbuf) == 0)
#endif
                pktsetprio(pktbuf, FALSE);


#if defined(PCIE_FULL_DONGLE) && !defined(PCIE_TX_DEFERRAL)
        /*
         * 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
#if defined(DHD_TX_DUMP)
        dhd_tx_dump(dhdp->osh, pktbuf);
#endif

        /* terence 20150901: Micky add to ajust the 802.1X priority */
        /* Set the 802.1X packet with the highest priority 7 */
        if (dhdp->conf->pktprio8021x >= 0)
                pktset8021xprio(pktbuf, dhdp->conf->pktprio8021x);

#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 WLMEDIA_HTSF
        dhd_htsf_addtxts(dhdp, pktbuf);
#endif

#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_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;
#ifdef WLMEDIA_HTSF
        uint8 htsfdlystat_sz = dhd->pub.htsfdlystat_sz;
#else
        uint8 htsfdlystat_sz = 0;
#endif
#ifdef DHD_WMF
        struct ether_header *eh;
        uint8 *iph;
#endif /* DHD_WMF */

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

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

        /* Reject if down */
        if (dhd->pub.busstate == DHD_BUS_DOWN || dhd->pub.hang_was_sent) {
                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_ERROR(("%s: Event HANG sent up\n", __FUNCTION__));
                        net_os_send_hang_message(net);
                }
                DHD_PERIM_UNLOCK_TRY(DHD_FWDER_UNIT(dhd), TRUE);
                DHD_OS_WAKE_UNLOCK(&dhd->pub);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20))
                return -ENODEV;
#else
                return NETDEV_TX_BUSY;
#endif
        }

        ifp = DHD_DEV_IFP(net);
        ifidx = DHD_DEV_IFIDX(net);

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

        if (ifidx == DHD_BAD_IF) {
                DHD_ERROR(("%s: bad ifidx %d\n", __FUNCTION__, ifidx));
                netif_stop_queue(net);
                DHD_PERIM_UNLOCK_TRY(DHD_FWDER_UNIT(dhd), TRUE);
                DHD_OS_WAKE_UNLOCK(&dhd->pub);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20))
                return -ENODEV;
#else
                return NETDEV_TX_BUSY;
#endif
        }

        /* 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++;

                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;
                }
        }

        /* Convert to packet */
        if (!(pktbuf = PKTFRMNATIVE(dhd->pub.osh, skb))) {
                DHD_ERROR(("%s: PKTFRMNATIVE failed\n",
                           dhd_ifname(&dhd->pub, ifidx)));
                dev_kfree_skb_any(skb);
                ret = -ENOMEM;
                goto done;
        }
#ifdef WLMEDIA_HTSF
        if (htsfdlystat_sz && PKTLEN(dhd->pub.osh, pktbuf) >= ETHER_ADDR_LEN) {
                uint8 *pktdata = (uint8 *)PKTDATA(dhd->pub.osh, pktbuf);
                struct ether_header *eh = (struct ether_header *)pktdata;

                if (!ETHER_ISMULTI(eh->ether_dhost) &&
                        (ntoh16(eh->ether_type) == ETHER_TYPE_IP)) {
                        eh->ether_type = hton16(ETHER_TYPE_BRCM_PKTDLYSTATS);
                }
        }
#endif
#ifdef DHD_WMF
        eh = (struct ether_header *)PKTDATA(dhd->pub.osh, pktbuf);
        iph = (uint8 *)eh + ETHER_HDR_LEN;

        /* WMF processing for multicast packets
         * Only IPv4 packets are handled
         */
        if (ifp->wmf.wmf_enable && (ntoh16(eh->ether_type) == ETHER_TYPE_IP) &&
                (IP_VER(iph) == IP_VER_4) && (ETHER_ISMULTI(eh->ether_dhost) ||
                ((IPV4_PROT(iph) == IP_PROT_IGMP) && dhd->pub.wmf_ucast_igmp))) {
#if defined(DHD_IGMP_UCQUERY) || defined(DHD_UCAST_UPNP)
                void *sdu_clone;
                bool ucast_convert = FALSE;
#ifdef DHD_UCAST_UPNP
                uint32 dest_ip;

                dest_ip = ntoh32(*((uint32 *)(iph + IPV4_DEST_IP_OFFSET)));
                ucast_convert = dhd->pub.wmf_ucast_upnp && MCAST_ADDR_UPNP_SSDP(dest_ip);
#endif /* DHD_UCAST_UPNP */
#ifdef DHD_IGMP_UCQUERY
                ucast_convert |= dhd->pub.wmf_ucast_igmp_query &&
                        (IPV4_PROT(iph) == IP_PROT_IGMP) &&
                        (*(iph + IPV4_HLEN(iph)) == IGMPV2_HOST_MEMBERSHIP_QUERY);
#endif /* DHD_IGMP_UCQUERY */
                if (ucast_convert) {
                        dhd_sta_t *sta;
                        unsigned long flags;

                        DHD_IF_STA_LIST_LOCK(ifp, flags);

                        /* Convert upnp/igmp query to unicast for each assoc STA */
                        list_for_each_entry(sta, &ifp->sta_list, list) {
                                if ((sdu_clone = PKTDUP(dhd->pub.osh, pktbuf)) == NULL) {
                                        DHD_IF_STA_LIST_UNLOCK(ifp, flags);
                                        DHD_PERIM_UNLOCK_TRY(DHD_FWDER_UNIT(dhd), TRUE);
                                        DHD_OS_WAKE_UNLOCK(&dhd->pub);
                                        return (WMF_NOP);
                                }
                                dhd_wmf_forward(ifp->wmf.wmfh, sdu_clone, 0, sta, 1);
                        }

                        DHD_IF_STA_LIST_UNLOCK(ifp, flags);
                        DHD_PERIM_UNLOCK_TRY(DHD_FWDER_UNIT(dhd), TRUE);
                        DHD_OS_WAKE_UNLOCK(&dhd->pub);

                        PKTFREE(dhd->pub.osh, pktbuf, TRUE);
                        return NETDEV_TX_OK;
                } else
#endif /* defined(DHD_IGMP_UCQUERY) || defined(DHD_UCAST_UPNP) */
                {
                        /* There will be no STA info if the packet is coming from LAN host
                         * Pass as NULL
                         */
                        ret = dhd_wmf_packets_handle(&dhd->pub, pktbuf, NULL, ifidx, 0);
                        switch (ret) {
                        case WMF_TAKEN:
                        case WMF_DROP:
                                /* Either taken by WMF or we should drop it.
                                 * Exiting send path
                                 */
                                DHD_PERIM_UNLOCK_TRY(DHD_FWDER_UNIT(dhd), TRUE);
                                DHD_OS_WAKE_UNLOCK(&dhd->pub);
                                return NETDEV_TX_OK;
                        default:
                                /* Continue the transmit path */
                                break;
                        }
                }
        }
#endif /* DHD_WMF */

#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))
                        return 0;
        } else {
                /* If this packet has replaced another packet and got freed, just return */
                if (dhd_tcpack_suppress(&dhd->pub, pktbuf))
                        return 0;
        }
#endif /* DHDTCPACK_SUPPRESS */

        ret = dhd_sendpkt(&dhd->pub, ifidx, pktbuf);

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
                {
                        dhd->pub.tx_packets++;
                        ifp->stats.tx_packets++;
                        ifp->stats.tx_bytes += datalen;
                }
        }

        DHD_PERIM_UNLOCK_TRY(DHD_FWDER_UNIT(dhd), TRUE);
        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
}


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);

        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_WMF
bool
dhd_is_rxthread_enabled(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd = dhdp->info;

        return dhd->rxthread_enabled;
}
#endif /* DHD_WMF */

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;
#if defined(DHD_RX_DUMP) || defined(DHD_8021X_DUMP)
        char *dump_data;
        uint16 protocol;
#endif /* DHD_RX_DUMP || DHD_8021X_DUMP */

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

        for (i = 0; pktbuf && i < numpkt; i++, pktbuf = pnext) {
                struct ether_header *eh;
#ifdef WLBTAMP
                struct dot11_llc_snap_header *lsh;
#endif

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

                ifp = dhd->iflist[ifidx];
                if (ifp == NULL) {
                        DHD_ERROR(("%s: ifp is NULL. drop packet\n",
                                __FUNCTION__));
                        PKTCFREE(dhdp->osh, pktbuf, FALSE);
                        continue;
                }

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

                /* 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 WLBTAMP
                lsh = (struct dot11_llc_snap_header *)&eh[1];

                if ((ntoh16(eh->ether_type) < ETHER_TYPE_MIN) &&
                    (PKTLEN(dhdp->osh, pktbuf) >= RFC1042_HDR_LEN) &&
                    bcmp(lsh, BT_SIG_SNAP_MPROT, DOT11_LLC_SNAP_HDR_LEN - 2) == 0 &&
                    lsh->type == HTON16(BTA_PROT_L2CAP)) {
                        amp_hci_ACL_data_t *ACL_data = (amp_hci_ACL_data_t *)
                                ((uint8 *)eh + RFC1042_HDR_LEN);
                        ACL_data = NULL;
                }
#endif /* WLBTAMP */

#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
#ifdef DHD_L2_FILTER
                /* If block_ping is enabled drop the ping packet */
                if (dhdp->block_ping) {
                        if (dhd_l2_filter_block_ping(dhdp, pktbuf, ifidx) == BCME_OK) {
                                PKTFREE(dhdp->osh, pktbuf, FALSE);
                                continue;
                        }
                }
#endif
#ifdef DHD_WMF
                /* WMF processing for multicast packets */
                if (ifp->wmf.wmf_enable && (ETHER_ISMULTI(eh->ether_dhost))) {
                        dhd_sta_t *sta;
                        int ret;

                        sta = dhd_find_sta(dhdp, ifidx, (void *)eh->ether_shost);
                        ret = dhd_wmf_packets_handle(dhdp, pktbuf, sta, ifidx, 1);
                        switch (ret) {
                                case WMF_TAKEN:
                                        /* The packet is taken by WMF. Continue to next iteration */
                                        continue;
                                case WMF_DROP:
                                        /* Packet DROP decision by WMF. Toss it */
                                        DHD_ERROR(("%s: WMF decides to drop packet\n",
                                                __FUNCTION__));
                                        PKTCFREE(dhdp->osh, pktbuf, FALSE);
                                        continue;
                                default:
                                        /* Continue the transmit path */
                                        break;
                        }
                }
#endif /* DHD_WMF */
#ifdef DHDTCPACK_SUPPRESS
                dhd_tcpdata_info_get(dhdp, pktbuf);
#endif
                skb = PKTTONATIVE(dhdp->osh, pktbuf);

                ifp = dhd->iflist[ifidx];
                if (ifp == NULL)
                        ifp = dhd->iflist[0];

                ASSERT(ifp);
                skb->dev = ifp->net;

#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 = PKTDUP(dhdp->osh, pktbuf);
                                dhd_sendpkt(dhdp, ifidx, npktbuf);
                        }
                }
#endif /* PCIE_FULL_DONGLE */

                /* 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)
                dump_data = skb->data;
                protocol = (dump_data[12] << 8) | dump_data[13];

                if (protocol == ETHER_TYPE_802_1X) {
                        DHD_ERROR(("ETHER_TYPE_802_1X [RX]: "
                                "ver %d, type %d, replay %d\n",
                                dump_data[14], dump_data[15],
                                dump_data[30]));
                }
#endif /* DHD_RX_DUMP || DHD_8021X_DUMP */
#if defined(DHD_RX_DUMP)
                DHD_ERROR(("RX DUMP - %s\n", _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 */

                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;

#ifdef WLMEDIA_HTSF
                dhd_htsf_addrxts(dhdp, pktbuf);
#endif
                /* 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) {
                        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) */
                        &event,
                        &data);

                        wl_event_to_host_order(&event);
                        if (!tout_ctrl)
                                tout_ctrl = DHD_PACKET_TIMEOUT_MS;
#ifdef WLBTAMP
                        if (event.event_type == WLC_E_BTA_HCI_EVENT) {
                                dhd_bta_doevt(dhdp, data, event.datalen);
                        }
#endif /* WLBTAMP */

#if defined(PNO_SUPPORT)
                        if (event.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 */

#ifdef DHD_DONOT_FORWARD_BCMEVENT_AS_NETWORK_PKT
                        PKTFREE(dhdp->osh, pktbuf, FALSE);
                        continue;
#endif /* DHD_DONOT_FORWARD_BCMEVENT_AS_NETWORK_PKT */
                } else {
                        tout_rx = DHD_PACKET_TIMEOUT_MS;

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

                ASSERT(ifidx < DHD_MAX_IFS && dhd->iflist[ifidx]);
                ifp = dhd->iflist[ifidx];

                if (ifp->net)
                        ifp->net->last_rx = jiffies;

                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 defined(DHD_TCP_WINSIZE_ADJUST)
                if (dhd_use_tcp_window_size_adjust) {
                        if (ifidx == 0 && ntoh16(skb->protocol) == ETHER_TYPE_IP) {
                                dhd_adjust_tcp_winsize(dhdp->op_mode, skb);
                        }
                }
#endif /* DHD_TCP_WINSIZE_ADJUST */

                if (in_interrupt()) {
                        netif_rx(skb);
                } 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.
                                 */
#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 (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;
#ifdef WLBTAMP
        uint len;
#endif

        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 WLBTAMP
        /* Crack open the packet and check to see if it is BT HCI ACL data packet.
         * If yes generate packet completion event.
         */
        len = PKTLEN(dhdp->osh, txp);

        /* Generate ACL data tx completion event locally to avoid SDIO bus transaction */
        if ((type < ETHER_TYPE_MIN) && (len >= RFC1042_HDR_LEN)) {
                struct dot11_llc_snap_header *lsh = (struct dot11_llc_snap_header *)&eh[1];

                if (bcmp(lsh, BT_SIG_SNAP_MPROT, DOT11_LLC_SNAP_HDR_LEN - 2) == 0 &&
                    ntoh16(lsh->type) == BTA_PROT_L2CAP) {

                        dhd_bta_tx_hcidata_complete(dhdp, txp, success);
                }
        }
#endif /* WLBTAMP */
#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 (success) {
                        dhd->pub.tx_packets++;
                        ifp->stats.tx_packets++;
                        ifp->stats.tx_bytes += datalen;
                } else {
                        ifp->stats.tx_dropped++;
                }
        }
#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;
        int ifidx;

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

        ifidx = dhd_net2idx(dhd, net);
        if (ifidx == DHD_BAD_IF) {
                DHD_ERROR(("%s: BAD_IF\n", __FUNCTION__));

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

        ifp = dhd->iflist[ifidx];
        ASSERT(dhd && ifp);

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

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

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

                                /* Call the bus module watchdog */
                                dhd_bus_watchdog(&dhd->pub);


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

        /* Call the bus module watchdog */
        dhd_bus_watchdog(&dhd->pub);

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

        /* 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 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)
{
        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);
        }

#ifdef CUSTOM_DPC_CPUCORE
        set_cpus_allowed_ptr(current, cpumask_of(CUSTOM_DPC_CPUCORE));
#else
        if (dhd->pub.conf->dpc_cpucore >= 0) {
                printf("%s: set dpc_cpucore %d from config.txt\n", __FUNCTION__, dhd->pub.conf->dpc_cpucore);
                set_cpus_allowed_ptr(current, cpumask_of(dhd->pub.conf->dpc_cpucore));
        }
#endif
#ifdef CUSTOM_SET_CPUCORE
        dhd->pub.current_dpc = current;
#endif /* CUSTOM_SET_CPUCORE */
        /* 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) {
                                dhd_os_wd_timer_extend(&dhd->pub, TRUE);
                                while (dhd_bus_dpc(dhd->pub.bus)) {
                                        /* process all data */
                                }
                                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;
        }
        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(WAIT_DEQUEUE)
#define RXF_WATCHDOG_TIME 250 /* BARK_TIME(1000) /  */
        ulong watchdogTime = OSL_SYSUPTIME(); /* msec */
#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);
        }

        DAEMONIZE("dhd_rxf");
        /* DHD_OS_WAKE_LOCK is called in dhd_sched_dpc[dhd_linux.c] down below  */

        /*  signal: thread has started */
        complete(&tsk->completed);
#ifdef CUSTOM_SET_CPUCORE
        dhd->pub.current_rxf = current;
#endif /* CUSTOM_SET_CPUCORE */
        /* 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
#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);

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

                        DHD_OS_WAKE_UNLOCK(pub);
                }
                else
                        break;
        }
        complete_and_exit(&tsk->completed, 0);
}

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

        if (!dhdp)
                return;

        dhd = dhdp->info;

        if (!dhd)
                return;

        tasklet_kill(&dhd->tasklet);
        DHD_ERROR(("%s: tasklet disabled\n", __FUNCTION__));
}
#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 (dhd_bus_dpc(dhd->pub.bus))
                        tasklet_schedule(&dhd->tasklet);
                else
                        DHD_OS_WAKE_UNLOCK(&dhd->pub);
        } else {
                dhd_bus_stop(dhd->pub.bus, TRUE);
                DHD_OS_WAKE_UNLOCK(&dhd->pub);
        }
}

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

        DHD_OS_WAKE_LOCK(dhdp);
        if (dhd->thr_dpc_ctl.thr_pid >= 0) {
                /* 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 {
                tasklet_schedule(&dhd->tasklet);
        }
}

static void
dhd_sched_rxf(dhd_pub_t *dhdp, void *skb)
{
        dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
#ifdef RXF_DEQUEUE_ON_BUSY
        int ret = BCME_OK;
        int retry = 2;
#endif /* RXF_DEQUEUE_ON_BUSY */

        DHD_OS_WAKE_LOCK(dhdp);

        DHD_TRACE(("dhd_sched_rxf: Enter\n"));
#ifdef RXF_DEQUEUE_ON_BUSY
        do {
                ret = dhd_rxf_enqueue(dhdp, skb);
                if (ret == BCME_OK || ret == BCME_ERROR)
                        break;
                else
                        OSL_SLEEP(50); /* waiting for dequeueing */
        } while (retry-- > 0);

        if (retry <= 0 && ret == BCME_BUSY) {
                void *skbp = skb;

                while (skbp) {
                        void *skbnext = PKTNEXT(dhdp->osh, skbp);
                        PKTSETNEXT(dhdp->osh, skbp, NULL);
                        netif_rx_ni(skbp);
                        skbp = skbnext;
                }
                DHD_ERROR(("send skb to kernel backlog without rxf_thread\n"));
        }
        else {
                if (dhd->thr_rxf_ctl.thr_pid >= 0) {
                        up(&dhd->thr_rxf_ctl.sema);
                }
        }
#else /* RXF_DEQUEUE_ON_BUSY */
        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;
#endif /* RXF_DEQUEUE_ON_BUSY */
}

#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)
{
        wl_ioctl_t ioc;
        char buf[32];
        int ret;

        memset(&ioc, 0, sizeof(ioc));

        ioc.cmd = WLC_GET_VAR;
        ioc.buf = buf;
        ioc.len = (uint)sizeof(buf);
        ioc.set = FALSE;

        strncpy(buf, "toe_ol", sizeof(buf) - 1);
        buf[sizeof(buf) - 1] = '\0';
        if ((ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) {
                /* Check for older dongle image that doesn't support toe_ol */
                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)
{
        wl_ioctl_t ioc;
        char buf[32];
        int toe, ret;

        memset(&ioc, 0, sizeof(ioc));

        ioc.cmd = WLC_SET_VAR;
        ioc.buf = buf;
        ioc.len = (uint)sizeof(buf);
        ioc.set = TRUE;

        /* Set toe_ol as requested */

        strncpy(buf, "toe_ol", sizeof(buf) - 1);
        buf[sizeof(buf) - 1] = '\0';
        memcpy(&buf[sizeof("toe_ol")], &toe_ol, sizeof(uint32));

        if ((ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 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);

        strcpy(buf, "toe");
        memcpy(&buf[sizeof("toe")], &toe, sizeof(uint32));

        if ((ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 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)
void dhd_set_scb_probe(dhd_pub_t *dhd)
{
#define NUM_SCB_MAX_PROBE 3
        int ret = 0;
        wl_scb_probe_t scb_probe;
        char iovbuf[WL_EVENTING_MASK_LEN + 12];

        memset(&scb_probe, 0, sizeof(wl_scb_probe_t));

        if (dhd->op_mode & DHD_FLAG_HOSTAP_MODE)
                return;

        bcm_mkiovar("scb_probe", NULL, 0, iovbuf, sizeof(iovbuf));

        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_GET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 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;

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

#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

        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)
{
        dhd_info_t *dhd;

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

        if (!dhdp->up)
                return FALSE;

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

#ifdef CONFIG_MACH_UNIVERSAL5433
        /* old revision does not send hang message */
        if ((check_rev() && (error == -ETIMEDOUT)) || (error == -EREMOTEIO) ||
#else
        if ((error == -ETIMEDOUT) || (error == -EREMOTEIO) ||
#endif /* CONFIG_MACH_UNIVERSAL5433 */
                ((dhdp->busstate == DHD_BUS_DOWN) && (!dhdp->dongle_reset))) {
                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));
                net_os_send_hang_message(net);
                return TRUE;
        }
        return FALSE;
}

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;
                goto done;
        }

        if (data_buf)
                buflen = MIN(ioc->len, DHD_IOCTL_MAXLEN);

        /* check for local dhd ioctl and handle it */
        if (ioc->driver == DHD_IOCTL_MAGIC) {
                bcmerror = dhd_ioctl((void *)pub, ioc, data_buf, buflen);
                if (bcmerror)
                        pub->bcmerror = bcmerror;
                goto done;
        }

        /* send to dongle (must be up, and wl). */
        if (pub->busstate != DHD_BUS_DATA) {
                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);

#ifdef WLMEDIA_HTSF
        if (data_buf) {
                /*  short cut wl ioctl calls here  */
                if (strcmp("htsf", data_buf) == 0) {
                        dhd_ioctl_htsf_get(dhd, 0);
                        return BCME_OK;
                }

                if (strcmp("htsflate", data_buf) == 0) {
                        if (ioc->set) {
                                memset(ts, 0, sizeof(tstamp_t)*TSMAX);
                                memset(&maxdelayts, 0, sizeof(tstamp_t));
                                maxdelay = 0;
                                tspktcnt = 0;
                                maxdelaypktno = 0;
                                memset(&vi_d1.bin, 0, sizeof(uint32)*NUMBIN);
                                memset(&vi_d2.bin, 0, sizeof(uint32)*NUMBIN);
                                memset(&vi_d3.bin, 0, sizeof(uint32)*NUMBIN);
                                memset(&vi_d4.bin, 0, sizeof(uint32)*NUMBIN);
                        } else {
                                dhd_dump_latency();
                        }
                        return BCME_OK;
                }
                if (strcmp("htsfclear", data_buf) == 0) {
                        memset(&vi_d1.bin, 0, sizeof(uint32)*NUMBIN);
                        memset(&vi_d2.bin, 0, sizeof(uint32)*NUMBIN);
                        memset(&vi_d3.bin, 0, sizeof(uint32)*NUMBIN);
                        memset(&vi_d4.bin, 0, sizeof(uint32)*NUMBIN);
                        htsf_seqnum = 0;
                        return BCME_OK;
                }
                if (strcmp("htsfhis", data_buf) == 0) {
                        dhd_dump_htsfhisto(&vi_d1, "H to D");
                        dhd_dump_htsfhisto(&vi_d2, "D to D");
                        dhd_dump_htsfhisto(&vi_d3, "D to H");
                        dhd_dump_htsfhisto(&vi_d4, "H to H");
                        return BCME_OK;
                }
                if (strcmp("tsport", data_buf) == 0) {
                        if (ioc->set) {
                                memcpy(&tsport, data_buf + 7, 4);
                        } else {
                                DHD_ERROR(("current timestamp port: %d \n", tsport));
                        }
                        return BCME_OK;
                }
        }
#endif /* WLMEDIA_HTSF */

        if ((ioc->cmd == WLC_SET_VAR || ioc->cmd == WLC_GET_VAR) &&
                data_buf != NULL && strncmp("rpc_", data_buf, 4) == 0) {
#ifdef BCM_FD_AGGR
                bcmerror = dhd_fdaggr_ioctl(pub, ifidx, (wl_ioctl_t *)ioc, data_buf, buflen);
#else
                bcmerror = BCME_UNSUPPORTED;
#endif
                goto done;
        }
        bcmerror = dhd_wl_ioctl(pub, ifidx, (wl_ioctl_t *)ioc, data_buf, buflen);

done:
        dhd_check_hang(net, pub, bcmerror);

        return bcmerror;
}

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;
        u16 buflen = 0;

        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 == 0) {
                DHD_ERROR(("%s: Interface is down \n", __FUNCTION__));
                DHD_PERIM_UNLOCK(&dhd->pub);
                DHD_OS_WAKE_UNLOCK(&dhd->pub);
                return BCME_NOTUP;
        }

        /* send to dongle only if we are not waiting for reload already */
        if (dhd->pub.hang_was_sent) {
                DHD_ERROR(("%s: HANG was sent up earlier\n", __FUNCTION__));
                DHD_OS_WAKE_LOCK_CTRL_TIMEOUT_ENABLE(&dhd->pub, DHD_EVENT_TIMEOUT_MS);
                DHD_OS_WAKE_UNLOCK(&dhd->pub);
                return OSL_ERROR(BCME_DONGLE_DOWN);
        }

        ifidx = dhd_net2idx(dhd, net);
        DHD_TRACE(("%s: ifidx %d, cmd 0x%04x\n", __FUNCTION__, ifidx, cmd));

        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, cmd);
                dhd_check_hang(net, &dhd->pub, ret);
                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 (is_compat_task()) {
                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;
        }

        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';
        }

        bcmerror = dhd_ioctl_process(&dhd->pub, ifidx, &ioc, local_buf);

        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);
}

#define MAX_TRY_CNT             5 /* Number of tries to disable deepsleep */
int dhd_deepsleep(dhd_info_t *dhd, int flag)
{
        char iovbuf[20];
        uint powervar = 0;
        dhd_pub_t *dhdp;
        int cnt = 0;
        int ret = 0;

        dhdp = &dhd->pub;

        switch (flag) {
                case 1 :  /* Deepsleep on */
                        DHD_ERROR(("dhd_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;
                        memset(iovbuf, 0, sizeof(iovbuf));
                        bcm_mkiovar("mpc", (char *)&powervar, 4, iovbuf, sizeof(iovbuf));
                        dhd_wl_ioctl_cmd(dhdp, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);

                        /* Enable Deepsleep */
                        powervar = 1;
                        memset(iovbuf, 0, sizeof(iovbuf));
                        bcm_mkiovar("deepsleep", (char *)&powervar, 4, iovbuf, sizeof(iovbuf));
                        dhd_wl_ioctl_cmd(dhdp, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
                        break;

                case 0: /* Deepsleep Off */
                        DHD_ERROR(("dhd_deepsleep: OFF\n"));

                        /* Disable Deepsleep */
                        for (cnt = 0; cnt < MAX_TRY_CNT; cnt++) {
                                powervar = 0;
                                memset(iovbuf, 0, sizeof(iovbuf));
                                bcm_mkiovar("deepsleep", (char *)&powervar, 4,
                                        iovbuf, sizeof(iovbuf));
                                dhd_wl_ioctl_cmd(dhdp, WLC_SET_VAR, iovbuf,
                                        sizeof(iovbuf), TRUE, 0);

                                memset(iovbuf, 0, sizeof(iovbuf));
                                bcm_mkiovar("deepsleep", (char *)&powervar, 4,
                                        iovbuf, sizeof(iovbuf));
                                if ((ret = dhd_wl_ioctl_cmd(dhdp, WLC_GET_VAR, iovbuf,
                                        sizeof(iovbuf), FALSE, 0)) < 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;
                        memset(iovbuf, 0, sizeof(iovbuf));
                        bcm_mkiovar("mpc", (char *)&powervar, 4, iovbuf, sizeof(iovbuf));
                        dhd_wl_ioctl_cmd(dhdp, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
                        break;
        }

        return 0;
}

static int
dhd_stop(struct net_device *net)
{
        int ifidx = 0;
        dhd_info_t *dhd = DHD_DEV_INFO(net);
        DHD_OS_WAKE_LOCK(&dhd->pub);
        DHD_PERIM_LOCK(&dhd->pub);
        printf("%s: Enter %p\n", __FUNCTION__, net);
        if (dhd->pub.up == 0) {
                goto exit;
        }

        dhd_if_flush_sta(DHD_DEV_IFP(net));


        ifidx = dhd_net2idx(dhd, net);
        BCM_REFERENCE(ifidx);

        /* Set state and stop OS transmissions */
        netif_stop_queue(net);
        dhd->pub.up = 0;

#ifdef WL_CFG80211
        if (ifidx == 0) {
                wl_cfg80211_down(NULL);

                /*
                 * 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;

                                dhd_net_if_lock_local(dhd);
                                for (i = 1; i < DHD_MAX_IFS; i++)
                                        dhd_remove_if(&dhd->pub, i, FALSE);
                                dhd_net_if_unlock_local(dhd);
                        }
                }
        }
#endif /* WL_CFG80211 */

#ifdef PROP_TXSTATUS
        dhd_wlfc_cleanup(&dhd->pub, NULL, 0);
#endif
        /* Stop the protocol module */
        dhd_prot_stop(&dhd->pub);

        OLD_MOD_DEC_USE_COUNT;
exit:
        if (ifidx == 0 && !dhd_download_fw_on_driverload)
                wl_android_wifi_off(net);
        else {
                if (dhd->pub.conf->deepsleep)
                        dhd_deepsleep(dhd, 1);
        }
        dhd->pub.rxcnt_timeout = 0;
        dhd->pub.txcnt_timeout = 0;

        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;
        }

        printf("%s: Exit\n", __FUNCTION__);
        DHD_PERIM_UNLOCK(&dhd->pub);
        DHD_OS_WAKE_UNLOCK(&dhd->pub);
        return 0;
}

#if defined(WL_CFG80211) && defined(USE_INITIAL_SHORT_DWELL_TIME)
extern bool g_first_broadcast_scan;
#endif

#ifdef WL11U
static int dhd_interworking_enable(dhd_pub_t *dhd)
{
        char iovbuf[WLC_IOCTL_SMLEN];
        uint32 enable = true;
        int ret = BCME_OK;

        bcm_mkiovar("interworking", (char *)&enable, sizeof(enable), iovbuf, sizeof(iovbuf));
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 0) {
                DHD_ERROR(("%s: enableing interworking failed, ret=%d\n", __FUNCTION__, ret));
        }

        if (ret == BCME_OK) {
                /* basic capabilities for HS20 REL2 */
                uint32 cap = WL_WNM_BSSTRANS | WL_WNM_NOTIF;
                bcm_mkiovar("wnm", (char *)&cap, sizeof(cap), iovbuf, sizeof(iovbuf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR,
                        iovbuf, sizeof(iovbuf), TRUE, 0)) < 0) {
                        DHD_ERROR(("%s: failed to set WNM info, 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
        int ifidx;
        int32 ret = 0;

        printf("%s: Enter %p\n", __FUNCTION__, net);
#if defined(MULTIPLE_SUPPLICANT)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
        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 /* 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;

#if 0
        /*
         * 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

        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 (!dhd_download_fw_on_driverload) {
                        DHD_ERROR(("\n%s\n", dhd_version));
#if defined(USE_INITIAL_SHORT_DWELL_TIME)
                        g_first_broadcast_scan = TRUE;
#endif
                        ret = wl_android_wifi_on(net);
                        if (ret != 0) {
                                DHD_ERROR(("%s : wl_android_wifi_on failed (%d)\n",
                                        __FUNCTION__, ret));
                                ret = -1;
                                goto exit;
                        }
                }

                if (dhd->pub.busstate != DHD_BUS_DATA) {

                        /* try to bring up bus */
                        DHD_PERIM_UNLOCK(&dhd->pub);
                        ret = dhd_bus_start(&dhd->pub);
                        DHD_PERIM_LOCK(&dhd->pub);
                        if (ret) {
                                DHD_ERROR(("%s: failed with code %d\n", __FUNCTION__, ret));
                                ret = -1;
                                goto exit;
                        }

                }
                if (dhd_download_fw_on_driverload) {
                        if (dhd->pub.conf->deepsleep)
                                dhd_deepsleep(dhd, 0);
                }

                /* 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(WL_CFG80211)
                if (unlikely(wl_cfg80211_up(NULL))) {
                        DHD_ERROR(("%s: failed to bring up cfg80211\n", __FUNCTION__));
                        ret = -1;
                        goto exit;
                }
                dhd_set_scb_probe(&dhd->pub);
#endif /* WL_CFG80211 */
        }

        /* Allow transmit calls */
        netif_start_queue(net);
        dhd->pub.up = 1;

#ifdef BCMDBGFS
        dhd_dbg_init(&dhd->pub);
#endif

        OLD_MOD_INC_USE_COUNT;
exit:
        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)) && 1
        mutex_unlock(&_dhd_sdio_mutex_lock_);
#endif
#endif /* MULTIPLE_SUPPLICANT */

        printf("%s: Exit ret=%d\n", __FUNCTION__, ret);
        return ret;
}

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)) && 1 && 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(ifevent->ifidx, name, mac, ifevent->bssidx) == BCME_OK)
                return BCME_OK;
#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));

                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_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;

#if defined(WL_CFG80211) && !defined(P2PONEINT)
        if (wl_cfg80211_notify_ifdel(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));
        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_WORK_PRIORITY_LOW);

        return BCME_OK;
}

/* 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, char *name,
        uint8 *mac, uint8 bssidx, bool need_rtnl_lock)
{
        dhd_info_t *dhdinfo = (dhd_info_t *)dhdpub->info;
        dhd_if_t *ifp;

        ASSERT(dhdinfo && (ifidx < DHD_MAX_IFS));
        ifp = dhdinfo->iflist[ifidx];

        if (ifp != NULL) {
                if (ifp->net != NULL) {
                        DHD_ERROR(("%s: free existing IF %s\n", __FUNCTION__, ifp->net->name));

                        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;
        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;

#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 */

        return ifp->net;

fail:
        if (ifp != NULL) {
                if (ifp->net != NULL) {
                        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;
}

/* 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
 */
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;

        ifp = dhdinfo->iflist[ifidx];
        if (ifp != NULL) {
                if (ifp->net != NULL) {
                        DHD_ERROR(("deleting interface '%s' idx %d\n", ifp->net->name, ifp->idx));

                        /* 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);



#ifdef SET_RPS_CPUS
                                custom_rps_map_clear(ifp->net->_rx);
#endif /* SET_RPS_CPUS */
                                if (need_rtnl_lock)
                                        unregister_netdev(ifp->net);
                                else
                                        unregister_netdevice(ifp->net);
                        }
                        ifp->net = NULL;
                }
#ifdef DHD_WMF
                dhd_wmf_cleanup(dhdpub, ifidx);
#endif /* DHD_WMF */

                dhd_if_del_sta_list(ifp);

                dhdinfo->iflist[ifidx] = NULL;
                MFREE(dhdinfo->pub.osh, ifp, sizeof(*ifp));

        }

        return BCME_OK;
}

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31))
static struct net_device_ops dhd_ops_pri = {
        .ndo_open = dhd_open,
        .ndo_stop = dhd_stop,
        .ndo_get_stats = dhd_get_stats,
        .ndo_do_ioctl = dhd_ioctl_entry,
        .ndo_start_xmit = dhd_start_xmit,
        .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
};

static struct net_device_ops dhd_ops_virt = {
        .ndo_get_stats = dhd_get_stats,
        .ndo_do_ioctl = dhd_ioctl_entry,
        .ndo_start_xmit = dhd_start_xmit,
        .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
};

#ifdef P2PONEINT
extern int wl_cfgp2p_if_open(struct net_device *net);
extern int wl_cfgp2p_if_stop(struct net_device *net);

static struct net_device_ops dhd_cfgp2p_ops_virt = {
        .ndo_open = wl_cfgp2p_if_open,
        .ndo_stop = wl_cfgp2p_if_stop,
        .ndo_get_stats = dhd_get_stats,
        .ndo_do_ioctl = dhd_ioctl_entry,
        .ndo_start_xmit = dhd_start_xmit,
        .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 /* P2PONEINT */
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31)) */

#ifdef DEBUGGER
extern void debugger_init(void *bus_handle);
#endif


#ifdef SHOW_LOGTRACE
static char *logstrs_path = "/root/logstrs.bin";
module_param(logstrs_path, charp, S_IRUGO);

int
dhd_init_logstrs_array(dhd_event_log_t *temp)
{
        struct file *filep = NULL;
        struct kstat stat;
        mm_segment_t fs;
        char *raw_fmts =  NULL;
        int logstrs_size = 0;

        logstr_header_t *hdr = NULL;
        uint32 *lognums = NULL;
        char *logstrs = NULL;
        int ram_index = 0;
        char **fmts;
        int num_fmts = 0;
        uint32 i = 0;
        int error = 0;
        set_fs(KERNEL_DS);
        fs = get_fs();
        filep = filp_open(logstrs_path, O_RDONLY, 0);
        if (IS_ERR(filep)) {
                DHD_ERROR(("Failed to open the file logstrs.bin in %s\n",  __FUNCTION__));
                goto fail;
        }
        error = vfs_stat(logstrs_path, &stat);
        if (error) {
                DHD_ERROR(("Failed in %s to find file stat\n", __FUNCTION__));
                goto fail;
        }
        logstrs_size = (int) stat.size;

        raw_fmts = kmalloc(logstrs_size, GFP_KERNEL);
        if (raw_fmts == NULL) {
                DHD_ERROR(("Failed to allocate raw_fmts memory\n"));
                goto fail;
        }
        if (vfs_read(filep, raw_fmts, logstrs_size, &filep->f_pos) !=   logstrs_size) {
                DHD_ERROR(("Error: Log strings file read failed\n"));
                goto fail;
        }

        /* Remember header from the logstrs.bin file */
        hdr = (logstr_header_t *) (raw_fmts + logstrs_size -
                sizeof(logstr_header_t));

        if (hdr->log_magic == LOGSTRS_MAGIC) {
                /*
                * logstrs.bin start with header.
                */
                num_fmts =      hdr->rom_logstrs_offset / sizeof(uint32);
                ram_index = (hdr->ram_lognums_offset -
                        hdr->rom_lognums_offset) / sizeof(uint32);
                lognums = (uint32 *) &raw_fmts[hdr->rom_lognums_offset];
                logstrs = (char *)       &raw_fmts[hdr->rom_logstrs_offset];
        } else {
                /*
                 * Legacy logstrs.bin format without header.
                 */
                num_fmts = *((uint32 *) (raw_fmts)) / sizeof(uint32);
                if (num_fmts == 0) {
                        /* Legacy ROM/RAM logstrs.bin format:
                          *  - ROM 'lognums' section
                          *   - RAM 'lognums' section
                          *   - ROM 'logstrs' section.
                          *   - RAM 'logstrs' section.
                          *
                          * 'lognums' is an array of indexes for the strings in the
                          * 'logstrs' section. The first uint32 is 0 (index of first
                          * string in ROM 'logstrs' section).
                          *
                          * The 4324b5 is the only ROM that uses this legacy format. Use the
                          * fixed number of ROM fmtnums to find the start of the RAM
                          * 'lognums' section. Use the fixed first ROM string ("Con\n") to
                          * find the ROM 'logstrs' section.
                          */
                        #define NUM_4324B5_ROM_FMTS     186
                        #define FIRST_4324B5_ROM_LOGSTR "Con\n"
                        ram_index = NUM_4324B5_ROM_FMTS;
                        lognums = (uint32 *) raw_fmts;
                        num_fmts =      ram_index;
                        logstrs = (char *) &raw_fmts[num_fmts << 2];
                        while (strncmp(FIRST_4324B5_ROM_LOGSTR, logstrs, 4)) {
                                num_fmts++;
                                logstrs = (char *) &raw_fmts[num_fmts << 2];
                        }
                } else {
                                /* Legacy RAM-only logstrs.bin format:
                                 *        - RAM 'lognums' section
                                 *        - RAM 'logstrs' section.
                                 *
                                 * 'lognums' is an array of indexes for the strings in the
                                 * 'logstrs' section. The first uint32 is an index to the
                                 * start of 'logstrs'. Therefore, if this index is divided
                                 * by 'sizeof(uint32)' it provides the number of logstr
                                 *      entries.
                                 */
                                ram_index = 0;
                                lognums = (uint32 *) raw_fmts;
                                logstrs = (char *)      &raw_fmts[num_fmts << 2];
                        }
        }
        fmts = kmalloc(num_fmts  * sizeof(char *), GFP_KERNEL);
        if (fmts == NULL) {
                DHD_ERROR(("Failed to allocate fmts memory\n"));
                goto fail;
        }

        for (i = 0; i < num_fmts; i++) {
                /* ROM lognums index into logstrs using 'rom_logstrs_offset' as a base
                * (they are 0-indexed relative to 'rom_logstrs_offset').
                *
                * RAM lognums are already indexed to point to the correct RAM logstrs (they
                * are 0-indexed relative to the start of the logstrs.bin file).
                */
                if (i == ram_index) {
                        logstrs = raw_fmts;
                }
                fmts[i] = &logstrs[lognums[i]];
        }
        temp->fmts = fmts;
        temp->raw_fmts = raw_fmts;
        temp->num_fmts = num_fmts;
        filp_close(filep, NULL);
        set_fs(fs);
        return 0;
fail:
        if (raw_fmts) {
                kfree(raw_fmts);
                raw_fmts = NULL;
        }
        if (!IS_ERR(filep))
                filp_close(filep, NULL);
        set_fs(fs);
        temp->fmts = NULL;
        return -1;
}
#endif /* SHOW_LOGTRACE */


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;
        wifi_adapter_info_t *adapter = NULL;

        dhd_attach_states_t dhd_state = DHD_ATTACH_STATE_INIT;
        DHD_TRACE(("%s: Enter\n", __FUNCTION__));

        /* will implement get_ids for DBUS later */
#if defined(BCMSDIO)
        dhd_bus_get_ids(bus, &bus_type, &bus_num, &slot_num);
#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 fail;
                }
        }
        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;
        dhd->adapter = adapter;

#ifdef GET_CUSTOM_MAC_ENABLE
        wifi_platform_get_mac_addr(dhd->adapter, dhd->pub.mac.octet);
#endif /* GET_CUSTOM_MAC_ENABLE */
        dhd->thr_dpc_ctl.thr_pid = DHD_PID_KT_TL_INVALID;
        dhd->thr_wdt_ctl.thr_pid = DHD_PID_KT_INVALID;

        /* Initialize thread based operation and lock */
        sema_init(&dhd->sdsem, 1);

        /* Link to info module */
        dhd->pub.info = dhd;


        /* Link to bus module */
        dhd->pub.bus = bus;
        dhd->pub.hdrlen = bus_hdrlen;

        /* dhd_conf must be attached after linking dhd to dhd->pub.info,
         * because dhd_detech will check .info is NULL or not.
        */
        if (dhd_conf_attach(&dhd->pub) != 0) {
                DHD_ERROR(("dhd_conf_attach failed\n"));
                goto fail;
        }
        dhd_conf_reset(&dhd->pub);
        dhd_conf_set_chiprev(&dhd->pub, dhd_bus_chip(bus), dhd_bus_chiprev(bus));
        dhd_conf_preinit(&dhd->pub);

        /* 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);
#ifndef BUILD_IN_KERNEL
        dhd_conf_read_config(&dhd->pub, dhd->conf_path);
#endif

        /* 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))
                        strcat(if_name, "%d");
        }
        net = dhd_allocate_if(&dhd->pub, 0, if_name, NULL, 0, TRUE);
        if (net == NULL)
                goto fail;
        dhd_state |= DHD_ATTACH_STATE_ADD_IF;

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31))
        net->open = NULL;
#else
        net->netdev_ops = NULL;
#endif

        sema_init(&dhd->proto_sem, 1);

#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;
#endif /* PROP_TXSTATUS */

        /* Initialize other structure content */
        init_waitqueue_head(&dhd->ioctl_resp_wait);
        init_waitqueue_head(&dhd->ctrl_wait);

        /* 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);
#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);
        dhd->wakelock_counter = 0;
        dhd->wakelock_wd_counter = 0;
        dhd->wakelock_rx_timeout_enable = 0;
        dhd->wakelock_ctrl_timeout_enable = 0;
#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_wdwake, WAKE_LOCK_SUSPEND, "wlan_wd_wake");
#ifdef BCMPCIE_OOB_HOST_WAKE
        wake_lock_init(&dhd->wl_intrwake, WAKE_LOCK_SUSPEND, "wlan_oob_irq_wake");
#endif /* BCMPCIE_OOB_HOST_WAKE */
#endif /* CONFIG_HAS_WAKELOCK */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
        mutex_init(&dhd->dhd_net_if_mutex);
        mutex_init(&dhd->dhd_suspend_mutex);
#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
        /* 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
#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
        dhd_init_logstrs_array(&dhd->event_data);
#endif /* SHOW_LOGTRACE */

        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;
        }


        /* 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");

        } else {
                dhd->thr_wdt_ctl.thr_pid = -1;
        }

#ifdef DEBUGGER
        debugger_init((void *) bus);
#endif

        /* 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");
        } else {
                /*  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");
        }

        dhd_state |= DHD_ATTACH_STATE_THREADS_CREATED;

#if defined(CONFIG_PM_SLEEP)
        if (!dhd_pm_notifier_registered) {
                dhd_pm_notifier_registered = TRUE;
                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 */
#ifdef CONFIG_IPV6
        if (!dhd_inet6addr_notifier_registered) {
                dhd_inet6addr_notifier_registered = TRUE;
                register_inet6addr_notifier(&dhd_inet6addr_notifier);
        }
#endif
        dhd->dhd_deferred_wq = dhd_deferred_work_init((void *)dhd);
#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
#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 */

        dhd_state |= DHD_ATTACH_STATE_DONE;
        dhd->dhd_state = dhd_state;

        dhd_found++;
#if defined(CUSTOMER_HW20) && defined(WLANAUDIO)
        dhd_global = dhd;
#endif /* CUSTOMER_HW20 && WLANAUDIO */
        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);
        }

        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;
}

bool dhd_update_fw_nv_path(dhd_info_t *dhdinfo)
{
        int fw_len;
        int nv_len;
        int conf_len;
        const char *fw = NULL;
        const char *nv = NULL;
        const char *conf = NULL;
        wifi_adapter_info_t *adapter = dhdinfo->adapter;


        /* 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 = CONFIG_BCMDHD_FW_PATH;
#endif /* CONFIG_BCMDHD_FW_PATH */
#ifdef CONFIG_BCMDHD_NVRAM_PATH
                nv = 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;
        }
        if (dhdinfo->conf_path[0] == '\0') {
                if (adapter && adapter->conf_path && adapter->conf_path[0] != '\0')
                        conf = adapter->conf_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;
        if (config_path[0] != '\0')
                conf = config_path;

        if (fw && fw[0] != '\0') {
                fw_len = strlen(fw);
                if (fw_len >= sizeof(dhdinfo->fw_path)) {
                        DHD_ERROR(("fw path len exceeds max len of dhdinfo->fw_path\n"));
                        return FALSE;
                }
                strncpy(dhdinfo->fw_path, fw, sizeof(dhdinfo->fw_path));
                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 >= sizeof(dhdinfo->nv_path)) {
                        DHD_ERROR(("nvram path len exceeds max len of dhdinfo->nv_path\n"));
                        return FALSE;
                }
                strncpy(dhdinfo->nv_path, nv, sizeof(dhdinfo->nv_path));
                if (dhdinfo->nv_path[nv_len-1] == '\n')
                       dhdinfo->nv_path[nv_len-1] = '\0';
        }
        if (conf && conf[0] != '\0') {
                conf_len = strlen(conf);
                if (conf_len >= sizeof(dhdinfo->conf_path)) {
                        DHD_ERROR(("config path len exceeds max len of dhdinfo->conf_path\n"));
                        return FALSE;
                }
                strncpy(dhdinfo->conf_path, conf, sizeof(dhdinfo->conf_path));
                if (dhdinfo->conf_path[conf_len-1] == '\n')
                       dhdinfo->conf_path[conf_len-1] = '\0';
        }

#if 0
        /* clear the path in module parameter */
        firmware_path[0] = '\0';
        nvram_path[0] = '\0';
        config_path[0] = '\0';
#endif

#ifndef BCMEMBEDIMAGE
        /* 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;
        }
        if (dhdinfo->conf_path[0] == '\0') {
                dhd_conf_set_conf_path_by_nv_path(&dhdinfo->pub, dhdinfo->conf_path, dhdinfo->nv_path);
        }
#ifdef CONFIG_PATH_AUTO_SELECT
        dhd_conf_set_conf_name_by_chip(&dhdinfo->pub, dhdinfo->conf_path);
#endif
#endif /* BCMEMBEDIMAGE */

        return TRUE;
}


int
dhd_bus_start(dhd_pub_t *dhdp)
{
        int ret = -1;
        dhd_info_t *dhd = (dhd_info_t*)dhdp->info;
        unsigned long flags;

        ASSERT(dhd);

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

        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)) {
                DHD_INFO(("%s download fw %s, nv %s, conf %s\n",
                        __FUNCTION__, dhd->fw_path, dhd->nv_path, dhd->conf_path));
                ret = dhd_bus_download_firmware(dhd->pub.bus, dhd->pub.osh,
                        dhd->fw_path, dhd->nv_path, dhd->conf_path);
                if (ret < 0) {
                        DHD_ERROR(("%s: failed to download firmware %s\n",
                                __FUNCTION__, dhd->fw_path));
                        DHD_PERIM_UNLOCK(dhdp);
                        return ret;
                }
        }
        if (dhd->pub.busstate != DHD_BUS_LOAD) {
                DHD_PERIM_UNLOCK(dhdp);
                return -ENETDOWN;
        }

        dhd_os_sdlock(dhdp);

        /* 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));
                dhd_os_sdunlock(dhdp);
                DHD_PERIM_UNLOCK(dhdp);
                return ret;
        }
#if defined(OOB_INTR_ONLY) || defined(BCMPCIE_OOB_HOST_WAKE)
#if defined(BCMPCIE_OOB_HOST_WAKE)
        dhd_os_sdunlock(dhdp);
#endif /* 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);

                dhd_os_sdunlock(dhdp);
#endif /* BCMPCIE_OOB_HOST_WAKE */
                DHD_PERIM_UNLOCK(dhdp);
                DHD_OS_WD_WAKE_UNLOCK(&dhd->pub);
                DHD_ERROR(("%s Host failed to register for OOB\n", __FUNCTION__));
                return -ENODEV;
        }

#if defined(BCMPCIE_OOB_HOST_WAKE)
        dhd_os_sdlock(dhdp);
        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 */
#elif defined(FORCE_WOWLAN)
        /* Enable oob at firmware */
        dhd_enable_oob_intr(dhd->pub.bus, TRUE);
#endif
#ifdef PCIE_FULL_DONGLE
        {
                uint8 txpush = 0;
                uint32 num_flowrings; /* includes H2D common rings */
                num_flowrings = dhd_bus_max_h2d_queues(dhd->pub.bus, &txpush);
                DHD_ERROR(("%s: Initializing %u flowrings\n", __FUNCTION__,
                        num_flowrings));
                if ((ret = dhd_flow_rings_init(&dhd->pub, num_flowrings)) != BCME_OK) {
                        dhd_os_sdunlock(dhdp);
                        DHD_PERIM_UNLOCK(dhdp);
                        return ret;
                }
        }
#endif /* PCIE_FULL_DONGLE */

        /* Do protocol initialization necessary for IOCTL/IOVAR */
        dhd_prot_init(&dhd->pub);

        /* 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_os_sdunlock(dhdp);
                DHD_PERIM_UNLOCK(dhdp);
                DHD_OS_WD_WAKE_UNLOCK(&dhd->pub);
                return -ENODEV;
        }

        dhd_os_sdunlock(dhdp);

        /* Bus is ready, query any dongle information */
        if ((ret = dhd_sync_with_dongle(&dhd->pub)) < 0) {
                DHD_PERIM_UNLOCK(dhdp);
                return ret;
        }

#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)
{
        char iovbuf[WLC_IOCTL_SMLEN];
        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;
        BCM_REFERENCE(mac);
        if (!FW_SUPPORTED(dhd, tdls))
                return BCME_ERROR;

        if (dhd->tdls_enable == tdls_on)
                goto auto_mode;
        bcm_mkiovar("tdls_enable", (char *)&tdls, sizeof(tdls), iovbuf, sizeof(iovbuf));
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 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;
        bcm_mkiovar("tdls_auto_op", (char *)&tdls_auto_op, sizeof(tdls_auto_op),
                iovbuf, sizeof(iovbuf));
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                sizeof(iovbuf), TRUE, 0)) < 0) {
                DHD_ERROR(("%s: tdls_auto_op failed %d\n", __FUNCTION__, ret));
                goto exit;
        }

        if (tdls_auto_op) {
                bcm_mkiovar("tdls_idle_time", (char *)&tdls_idle_time,
                        sizeof(tdls_idle_time), iovbuf, sizeof(iovbuf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                        sizeof(iovbuf), TRUE, 0)) < 0) {
                        DHD_ERROR(("%s: tdls_idle_time failed %d\n", __FUNCTION__, ret));
                        goto exit;
                }
                bcm_mkiovar("tdls_rssi_high", (char *)&tdls_rssi_high, 4, iovbuf, sizeof(iovbuf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                        sizeof(iovbuf), TRUE, 0)) < 0) {
                        DHD_ERROR(("%s: tdls_rssi_high failed %d\n", __FUNCTION__, ret));
                        goto exit;
                }
                bcm_mkiovar("tdls_rssi_low", (char *)&tdls_rssi_low, 4, iovbuf, sizeof(iovbuf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                        sizeof(iovbuf), TRUE, 0)) < 0) {
                        DHD_ERROR(("%s: tdls_rssi_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;
}
#ifdef PCIE_FULL_DONGLE
void dhd_tdls_update_peer_info(struct net_device *dev, bool connect, uint8 *da)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        dhd_pub_t *dhdp =  (dhd_pub_t *)&dhd->pub;
        tdls_peer_node_t *cur = dhdp->peer_tbl.node;
        tdls_peer_node_t *new = NULL, *prev = NULL;
        dhd_if_t *dhdif;
        uint8 sa[ETHER_ADDR_LEN];
        int ifidx = dhd_net2idx(dhd, dev);

        if (ifidx == DHD_BAD_IF)
                return;

        dhdif = dhd->iflist[ifidx];
        memcpy(sa, dhdif->mac_addr, ETHER_ADDR_LEN);

        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;
                        }
                        cur = cur->next;
                }

                new = MALLOC(dhdp->osh, sizeof(tdls_peer_node_t));
                if (new == NULL) {
                        DHD_ERROR(("%s: Failed to allocate memory\n", __FUNCTION__));
                        return;
                }
                memcpy(new->addr, da, ETHER_ADDR_LEN);
                new->next = dhdp->peer_tbl.node;
                dhdp->peer_tbl.node = new;
                dhdp->peer_tbl.tdls_peer_count++;

        } else {
                while (cur != NULL) {
                        if (!memcmp(da, cur->addr, ETHER_ADDR_LEN)) {
                                dhd_flow_rings_delete_for_peer(dhdp, ifidx, da);
                                if (prev)
                                        prev->next = cur->next;
                                else
                                        dhdp->peer_tbl.node = cur->next;
                                MFREE(dhdp->osh, cur, sizeof(tdls_peer_node_t));
                                dhdp->peer_tbl.tdls_peer_count--;
                                return;
                        }
                        prev = cur;
                        cur = cur->next;
                }
                DHD_ERROR(("%s: TDLS Peer Entry Not found\n", __FUNCTION__));
        }
}
#endif /* PCIE_FULL_DONGLE */
#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));
                bcm_mkiovar("p2p", 0, 0, buf, sizeof(buf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_GET_VAR, buf, sizeof(buf),
                        FALSE, 0)) < 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 defined(WL_ENABLE_P2P_IF) || defined(WL_CFG80211_P2P_DEV_IF)
                                /* For customer_hw4, although ICS,
                                * we still support concurrent mode
                                */
                                return ret;
#else
                                return 0;
#endif
                        }
                }
        }
        return 0;
}
#endif

#ifdef SUPPORT_AP_POWERSAVE
#define RXCHAIN_PWRSAVE_PPS                     10
#define RXCHAIN_PWRSAVE_QUIET_TIME              10
#define RXCHAIN_PWRSAVE_STAS_ASSOC_CHECK        0
int dhd_set_ap_powersave(dhd_pub_t *dhdp, int ifidx, int enable)
{
        char iovbuf[128];
        int32 pps = RXCHAIN_PWRSAVE_PPS;
        int32 quiet_time = RXCHAIN_PWRSAVE_QUIET_TIME;
        int32 stas_assoc_check = RXCHAIN_PWRSAVE_STAS_ASSOC_CHECK;

        if (enable) {
                bcm_mkiovar("rxchain_pwrsave_enable", (char *)&enable, 4, iovbuf, sizeof(iovbuf));
                if (dhd_wl_ioctl_cmd(dhdp, WLC_SET_VAR,
                    iovbuf, sizeof(iovbuf), TRUE, 0) != BCME_OK) {
                        DHD_ERROR(("Failed to enable AP power save\n"));
                }
                bcm_mkiovar("rxchain_pwrsave_pps", (char *)&pps, 4, iovbuf, sizeof(iovbuf));
                if (dhd_wl_ioctl_cmd(dhdp, WLC_SET_VAR,
                    iovbuf, sizeof(iovbuf), TRUE, 0) != BCME_OK) {
                        DHD_ERROR(("Failed to set pps\n"));
                }
                bcm_mkiovar("rxchain_pwrsave_quiet_time", (char *)&quiet_time,
                4, iovbuf, sizeof(iovbuf));
                if (dhd_wl_ioctl_cmd(dhdp, WLC_SET_VAR,
                    iovbuf, sizeof(iovbuf), TRUE, 0) != BCME_OK) {
                        DHD_ERROR(("Failed to set quiet time\n"));
                }
                bcm_mkiovar("rxchain_pwrsave_stas_assoc_check", (char *)&stas_assoc_check,
                4, iovbuf, sizeof(iovbuf));
                if (dhd_wl_ioctl_cmd(dhdp, WLC_SET_VAR,
                    iovbuf, sizeof(iovbuf), TRUE, 0) != BCME_OK) {
                        DHD_ERROR(("Failed to set stas assoc check\n"));
                }
        } else {
                bcm_mkiovar("rxchain_pwrsave_enable", (char *)&enable, 4, iovbuf, sizeof(iovbuf));
                if (dhd_wl_ioctl_cmd(dhdp, WLC_SET_VAR,
                    iovbuf, sizeof(iovbuf), TRUE, 0) != BCME_OK) {
                        DHD_ERROR(("Failed to disable AP power save\n"));
                }
        }

        return 0;
}
#endif /* SUPPORT_AP_POWERSAVE */


#if defined(READ_CONFIG_FROM_FILE)
#include <linux/fs.h>
#include <linux/ctype.h>

#define strtoul(nptr, endptr, base) bcm_strtoul((nptr), (endptr), (base))
bool PM_control = TRUE;

static int dhd_preinit_proc(dhd_pub_t *dhd, int ifidx, char *name, char *value)
{
        int var_int;
        wl_country_t cspec = {{0}, -1, {0}};
        char *revstr;
        char *endptr = NULL;
        int iolen;
        char smbuf[WLC_IOCTL_SMLEN*2];

        if (!strcmp(name, "country")) {
                revstr = strchr(value, '/');
                if (revstr) {
                        cspec.rev = strtoul(revstr + 1, &endptr, 10);
                        memcpy(cspec.country_abbrev, value, WLC_CNTRY_BUF_SZ);
                        cspec.country_abbrev[2] = '\0';
                        memcpy(cspec.ccode, cspec.country_abbrev, WLC_CNTRY_BUF_SZ);
                } else {
                        cspec.rev = -1;
                        memcpy(cspec.country_abbrev, value, WLC_CNTRY_BUF_SZ);
                        memcpy(cspec.ccode, value, WLC_CNTRY_BUF_SZ);
                        get_customized_country_code(dhd->info->adapter,
                                (char *)&cspec.country_abbrev, &cspec);
                }
                memset(smbuf, 0, sizeof(smbuf));
                DHD_ERROR(("config country code is country : %s, rev : %d !!\n",
                        cspec.country_abbrev, cspec.rev));
                iolen = bcm_mkiovar("country", (char*)&cspec, sizeof(cspec),
                        smbuf, sizeof(smbuf));
                return dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR,
                        smbuf, iolen, TRUE, 0);
        } else if (!strcmp(name, "roam_scan_period")) {
                var_int = (int)simple_strtol(value, NULL, 0);
                return dhd_wl_ioctl_cmd(dhd, WLC_SET_ROAM_SCAN_PERIOD,
                        &var_int, sizeof(var_int), TRUE, 0);
        } else if (!strcmp(name, "roam_delta")) {
                struct {
                        int val;
                        int band;
                } x;
                x.val = (int)simple_strtol(value, NULL, 0);
                /* x.band = WLC_BAND_AUTO; */
                x.band = WLC_BAND_ALL;
                return dhd_wl_ioctl_cmd(dhd, WLC_SET_ROAM_DELTA, &x, sizeof(x), TRUE, 0);
        } else if (!strcmp(name, "roam_trigger")) {
                int ret = 0;

                roam_trigger[0] = (int)simple_strtol(value, NULL, 0);
                roam_trigger[1] = WLC_BAND_ALL;
                ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_ROAM_TRIGGER, &roam_trigger,
                        sizeof(roam_trigger), TRUE, 0);

                return ret;
        } else if (!strcmp(name, "PM")) {
                int ret = 0;
                var_int = (int)simple_strtol(value, NULL, 0);

                ret =  dhd_wl_ioctl_cmd(dhd, WLC_SET_PM,
                        &var_int, sizeof(var_int), TRUE, 0);

#if defined(CONFIG_PM_LOCK)
                if (var_int == 0) {
                        g_pm_control = TRUE;
                        printk("%s var_int=%d don't control PM\n", __func__, var_int);
                } else {
                        g_pm_control = FALSE;
                        printk("%s var_int=%d do control PM\n", __func__, var_int);
                }
#endif

                return ret;
        }
#ifdef WLBTAMP
        else if (!strcmp(name, "btamp_chan")) {
                int btamp_chan;
                int iov_len = 0;
                char iovbuf[128];
                int ret;

                btamp_chan = (int)simple_strtol(value, NULL, 0);
                iov_len = bcm_mkiovar("btamp_chan", (char *)&btamp_chan, 4, iovbuf, sizeof(iovbuf));
                if ((ret  = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, iov_len, TRUE, 0) < 0))
                        DHD_ERROR(("%s btamp_chan=%d set failed code %d\n",
                                __FUNCTION__, btamp_chan, ret));
                else
                        DHD_ERROR(("%s btamp_chan %d set success\n",
                                __FUNCTION__, btamp_chan));
        }
#endif /* WLBTAMP */
        else if (!strcmp(name, "band")) {
                int ret;
                if (!strcmp(value, "auto"))
                        var_int = WLC_BAND_AUTO;
                else if (!strcmp(value, "a"))
                        var_int = WLC_BAND_5G;
                else if (!strcmp(value, "b"))
                        var_int = WLC_BAND_2G;
                else if (!strcmp(value, "all"))
                        var_int = WLC_BAND_ALL;
                else {
                        printk(" set band value should be one of the a or b or all\n");
                        var_int = WLC_BAND_AUTO;
                }
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_BAND, &var_int,
                        sizeof(var_int), TRUE, 0)) < 0)
                        printk(" set band err=%d\n", ret);
                return ret;
        } else if (!strcmp(name, "cur_etheraddr")) {
                struct ether_addr ea;
                char buf[32];
                uint iovlen;
                int ret;

                bcm_ether_atoe(value, &ea);

                ret = memcmp(&ea.octet, dhd->mac.octet, ETHER_ADDR_LEN);
                if (ret == 0) {
                        DHD_ERROR(("%s: Same Macaddr\n", __FUNCTION__));
                        return 0;
                }

                DHD_ERROR(("%s: Change Macaddr = %02X:%02X:%02X:%02X:%02X:%02X\n", __FUNCTION__,
                        ea.octet[0], ea.octet[1], ea.octet[2],
                        ea.octet[3], ea.octet[4], ea.octet[5]));

                iovlen = bcm_mkiovar("cur_etheraddr", (char*)&ea, ETHER_ADDR_LEN, buf, 32);

                ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, buf, iovlen, TRUE, 0);
                if (ret < 0) {
                        DHD_ERROR(("%s: can't set MAC address , error=%d\n", __FUNCTION__, ret));
                        return ret;
                }
                else {
                        memcpy(dhd->mac.octet, (void *)&ea, ETHER_ADDR_LEN);
                        return ret;
                }
        } else if (!strcmp(name, "lpc")) {
                int ret = 0;
                char buf[32];
                uint iovlen;
                var_int = (int)simple_strtol(value, NULL, 0);
                if (dhd_wl_ioctl_cmd(dhd, WLC_DOWN, NULL, 0, TRUE, 0) < 0) {
                        DHD_ERROR(("%s: wl down failed\n", __FUNCTION__));
                }
                iovlen = bcm_mkiovar("lpc", (char *)&var_int, 4, buf, sizeof(buf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, buf, iovlen, TRUE, 0)) < 0) {
                        DHD_ERROR(("%s Set lpc failed  %d\n", __FUNCTION__, ret));
                }
                if (dhd_wl_ioctl_cmd(dhd, WLC_UP, NULL, 0, TRUE, 0) < 0) {
                        DHD_ERROR(("%s: wl up failed\n", __FUNCTION__));
                }
                return ret;
        } else if (!strcmp(name, "vht_features")) {
                int ret = 0;
                char buf[32];
                uint iovlen;
                var_int = (int)simple_strtol(value, NULL, 0);

                if (dhd_wl_ioctl_cmd(dhd, WLC_DOWN, NULL, 0, TRUE, 0) < 0) {
                        DHD_ERROR(("%s: wl down failed\n", __FUNCTION__));
                }
                iovlen = bcm_mkiovar("vht_features", (char *)&var_int, 4, buf, sizeof(buf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, buf, iovlen, TRUE, 0)) < 0) {
                        DHD_ERROR(("%s Set vht_features failed  %d\n", __FUNCTION__, ret));
                }
                if (dhd_wl_ioctl_cmd(dhd, WLC_UP, NULL, 0, TRUE, 0) < 0) {
                        DHD_ERROR(("%s: wl up failed\n", __FUNCTION__));
                }
                return ret;
        } else {
                uint iovlen;
                char iovbuf[WLC_IOCTL_SMLEN];

                /* wlu_iovar_setint */
                var_int = (int)simple_strtol(value, NULL, 0);

                /* Setup timeout bcn_timeout from dhd driver 4.217.48 */
                if (!strcmp(name, "roam_off")) {
                        /* Setup timeout if Beacons are lost to report link down */
                        if (var_int) {
                                uint bcn_timeout = 2;
                                bcm_mkiovar("bcn_timeout", (char *)&bcn_timeout, 4,
                                        iovbuf, sizeof(iovbuf));
                                dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
                        }
                }
                /* Setup timeout bcm_timeout from dhd driver 4.217.48 */

                DHD_INFO(("%s:[%s]=[%d]\n", __FUNCTION__, name, var_int));

                iovlen = bcm_mkiovar(name, (char *)&var_int, sizeof(var_int),
                        iovbuf, sizeof(iovbuf));
                return dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR,
                        iovbuf, iovlen, TRUE, 0);
        }

        return 0;
}

static int dhd_preinit_config(dhd_pub_t *dhd, int ifidx)
{
        mm_segment_t old_fs;
        struct kstat stat;
        struct file *fp = NULL;
        unsigned int len;
        char *buf = NULL, *p, *name, *value;
        int ret = 0;
        char *config_path;

        config_path = CONFIG_BCMDHD_CONFIG_PATH;

        if (!config_path)
        {
                printk(KERN_ERR "config_path can't read. \n");
                return 0;
        }

        old_fs = get_fs();
        set_fs(get_ds());
        if ((ret = vfs_stat(config_path, &stat))) {
                set_fs(old_fs);
                printk(KERN_ERR "%s: Failed to get information (%d)\n",
                        config_path, ret);
                return ret;
        }
        set_fs(old_fs);

        if (!(buf = MALLOC(dhd->osh, stat.size + 1))) {
                printk(KERN_ERR "Failed to allocate memory %llu bytes\n", stat.size);
                return -ENOMEM;
        }

        printk("dhd_preinit_config : config path : %s \n", config_path);

        if (!(fp = dhd_os_open_image(config_path)) ||
                (len = dhd_os_get_image_block(buf, stat.size, fp)) < 0)
                goto err;

        buf[stat.size] = '\0';
        for (p = buf; *p; p++) {
                if (isspace(*p))
                        continue;
                for (name = p++; *p && !isspace(*p); p++) {
                        if (*p == '=') {
                                *p = '\0';
                                p++;
                                for (value = p; *p && !isspace(*p); p++);
                                *p = '\0';
                                if ((ret = dhd_preinit_proc(dhd, ifidx, name, value)) < 0) {
                                        printk(KERN_ERR "%s: %s=%s\n",
                                                bcmerrorstr(ret), name, value);
                                }
                                break;
                        }
                }
        }
        ret = 0;

out:
        if (fp)
                dhd_os_close_image(fp);
        if (buf)
                MFREE(dhd->osh, buf, stat.size+1);
        return ret;

err:
        ret = -1;
        goto out;
}
#endif /* READ_CONFIG_FROM_FILE */

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;
#ifndef WL_CFG80211
        u32 up = 0;
#endif
        uint8 msglen;
        eventmsgs_ext_t *eventmask_msg = NULL;
        char* iov_buf = NULL;
        int ret2 = 0;
#ifdef WLAIBSS
        aibss_bcn_force_config_t bcn_config;
        uint32 aibss;
#ifdef WLAIBSS_PS
        uint32 aibss_ps;
#endif /* WLAIBSS_PS */
#endif /* WLAIBSS */
#if defined(BCMSUP_4WAY_HANDSHAKE) && defined(WLAN_AKM_SUITE_FT_8021X)
        uint32 sup_wpa = 0;
#endif
#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
#if defined(CUSTOM_AMPDU_RELEASE)
        int32 ampdu_release = 0;
#endif
#if defined(CUSTOM_AMSDU_AGGSF)
        int32 amsdu_aggsf = 0;
#endif

#if defined(BCMSDIO)
#ifdef PROP_TXSTATUS
        int wlfc_enable = TRUE;
#ifndef DISABLE_11N
        uint32 hostreorder = 1;
        uint wl_down = 1;
#endif /* DISABLE_11N */
#endif /* PROP_TXSTATUS */
#endif
#ifdef PCIE_FULL_DONGLE
        uint32 wl_ap_isolate;
#endif /* PCIE_FULL_DONGLE */

#ifdef DHD_ENABLE_LPC
        uint32 lpc = 1;
#endif /* DHD_ENABLE_LPC */
        uint power_mode = PM_FAST;
        uint32 dongle_align = DHD_SDALIGN;
#if defined(BCMSDIO)
        uint32 glom = CUSTOM_GLOM_SETTING;
#endif /* defined(BCMSDIO) */
#if defined(CUSTOMER_HW2) && defined(USE_WL_CREDALL)
        uint32 credall = 1;
#endif
        uint bcn_timeout = dhd->conf->bcn_timeout;
        uint retry_max = 3;
#if defined(ARP_OFFLOAD_SUPPORT)
        int arpoe = 1;
#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 */
#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 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 */
#else
#ifdef DISABLE_BUILTIN_ROAM
        uint roamvar = 1;
#endif /* DISABLE_BUILTIN_ROAM */
#endif /* ROAM_ENABLE */

#if defined(SOFTAP)
        uint dtim = 1;
#endif
#if (defined(AP) && !defined(WLP2P)) || (!defined(AP) && defined(WL_CFG80211))
        uint32 mpc = 0; /* Turn MPC off for AP/APSTA mode */
        struct ether_addr p2p_ea;
#endif
#ifdef BCMCCX
        uint32 ccx = 1;
#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 DISABLE_11N
        uint32 nmode = 0;
#endif /* DISABLE_11N */

#if defined(DISABLE_11AC)
        uint32 vhtmode = 0;
#endif /* DISABLE_11AC */
#ifdef USE_WL_TXBF
        uint32 txbf = 1;
#endif /* USE_WL_TXBF */
#ifdef AMPDU_VO_ENABLE
        struct ampdu_tid_control tid;
#endif
#ifdef USE_WL_FRAMEBURST
        uint32 frameburst = 1;
#endif /* USE_WL_FRAMEBURST */
#ifdef DHD_SET_FW_HIGHSPEED
        uint32 ack_ratio = 250;
        uint32 ack_ratio_depth = 64;
#endif /* DHD_SET_FW_HIGHSPEED */
#ifdef SUPPORT_2G_VHT
        uint32 vht_features = 0x3; /* 2G enable | rates all */
#endif /* SUPPORT_2G_VHT */
#ifdef CUSTOM_PSPRETEND_THR
        uint32 pspretend_thr = CUSTOM_PSPRETEND_THR;
#endif
#ifdef PKT_FILTER_SUPPORT
        dhd_pkt_filter_enable = TRUE;
#endif /* PKT_FILTER_SUPPORT */
#ifdef WLTDLS
        dhd->tdls_enable = FALSE;
#endif /* WLTDLS */
        dhd->suspend_bcn_li_dtim = CUSTOM_SUSPEND_BCN_LI_DTIM;
        DHD_TRACE(("Enter %s\n", __FUNCTION__));

        dhd_conf_set_fw_int_cmd(dhd, "WLC_SET_BAND", WLC_SET_BAND, dhd->conf->band, 0, FALSE);
#ifdef DHDTCPACK_SUPPRESS
        printf("%s: Set tcpack_sup_mode %d\n", __FUNCTION__, dhd->conf->tcpack_sup_mode);
        dhd_tcpack_suppress_set(dhd, dhd->conf->tcpack_sup_mode);
#endif

        dhd->op_mode = 0;
        if ((!op_mode && dhd_get_fw_mode(dhd->info) == DHD_FLAG_MFG_MODE) ||
                (op_mode == DHD_FLAG_MFG_MODE)) {
                /* 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 GET_CUSTOM_MAC_ENABLE
        ret = wifi_platform_get_mac_addr(dhd->info->adapter, ea_addr.octet);
        if (!ret) {
                memset(buf, 0, sizeof(buf));
                bcm_mkiovar("cur_etheraddr", (void *)&ea_addr, ETHER_ADDR_LEN, buf, sizeof(buf));
                ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, buf, sizeof(buf), TRUE, 0);
                if (ret < 0) {
                        DHD_ERROR(("%s: can't set MAC address MAC="MACDBG", error=%d\n",
                                __FUNCTION__, MAC2STRDBG(ea_addr.octet), 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 */
                memset(buf, 0, sizeof(buf));
                bcm_mkiovar("cur_etheraddr", 0, 0, buf, sizeof(buf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_GET_VAR, buf, sizeof(buf),
                        FALSE, 0)) < 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 */

        /* get a capabilities from firmware */
        memset(dhd->fw_capabilities, 0, sizeof(dhd->fw_capabilities));
        bcm_mkiovar("cap", 0, 0, dhd->fw_capabilities, sizeof(dhd->fw_capabilities));
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_GET_VAR, dhd->fw_capabilities,
                sizeof(dhd->fw_capabilities), FALSE, 0)) < 0) {
                DHD_ERROR(("%s: Get Capability failed (error=%d)\n",
                        __FUNCTION__, ret));
                goto done;
        }
        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
                dhd->op_mode = DHD_FLAG_HOSTAP_MODE;
#if defined(ARP_OFFLOAD_SUPPORT)
                arpoe = 0;
#endif
#ifdef PKT_FILTER_SUPPORT
                        dhd_pkt_filter_enable = FALSE;
#endif
#ifdef SET_RANDOM_MAC_SOFTAP
                SRANDOM32((uint)jiffies);
                rand_mac = RANDOM32();
                iovbuf[0] = 0x02;                          /* locally administered bit */
                iovbuf[1] = 0x1A;
                iovbuf[2] = 0x11;
                iovbuf[3] = (unsigned char)(rand_mac & 0x0F) | 0xF0;
                iovbuf[4] = (unsigned char)(rand_mac >> 8);
                iovbuf[5] = (unsigned char)(rand_mac >> 16);

                bcm_mkiovar("cur_etheraddr", (void *)iovbuf, ETHER_ADDR_LEN, buf, sizeof(buf));
                ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, buf, sizeof(buf), TRUE, 0);
                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 */
#if !defined(AP) && defined(WL_CFG80211)
                /* Turn off MPC in AP mode */
                bcm_mkiovar("mpc", (char *)&mpc, 4, iovbuf, sizeof(iovbuf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                        sizeof(iovbuf), TRUE, 0)) < 0) {
                        DHD_ERROR(("%s mpc for HostAPD failed  %d\n", __FUNCTION__, ret));
                }
#endif
#ifdef SUPPORT_AP_POWERSAVE
                dhd_set_ap_powersave(dhd, 0, TRUE);
#endif
#ifdef SOFTAP_UAPSD_OFF
                bcm_mkiovar("wme_apsd", (char *)&wme_apsd, 4, iovbuf, sizeof(iovbuf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 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;
        } 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
#ifdef PKT_FILTER_SUPPORT
                        dhd_pkt_filter_enable = FALSE;
#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
                        dhd->op_mode |= concurrent_mode;
                }

                /* Check if we are enabling p2p */
                if (dhd->op_mode & DHD_FLAG_P2P_MODE) {
                        bcm_mkiovar("apsta", (char *)&apsta, 4, iovbuf, sizeof(iovbuf));
                        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR,
                                iovbuf, sizeof(iovbuf), TRUE, 0)) < 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
                        memcpy(&p2p_ea, &dhd->mac, ETHER_ADDR_LEN);
                        ETHER_SET_LOCALADDR(&p2p_ea);
                        bcm_mkiovar("p2p_da_override", (char *)&p2p_ea,
                                ETHER_ADDR_LEN, iovbuf, sizeof(iovbuf));
                        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR,
                                iovbuf, sizeof(iovbuf), TRUE, 0)) < 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
        }

        DHD_ERROR(("Firmware up: op_mode=0x%04x, MAC="MACDBG"\n",
                dhd->op_mode, MAC2STRDBG(dhd->mac.octet)));
        /* Set Country code  */
        if (dhd->dhd_cspec.ccode[0] != 0) {
                printf("Set country %s, revision %d\n", dhd->dhd_cspec.ccode, dhd->dhd_cspec.rev);
                bcm_mkiovar("country", (char *)&dhd->dhd_cspec,
                        sizeof(wl_country_t), iovbuf, sizeof(iovbuf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 0)
                        printf("%s: country code setting failed %d\n", __FUNCTION__, ret);
        } else {
                dhd_conf_set_country(dhd);
                dhd_conf_fix_country(dhd);
        }
        dhd_conf_get_country(dhd, &dhd->dhd_cspec);

#if defined(DISABLE_11AC)
        bcm_mkiovar("vhtmode", (char *)&vhtmode, 4, iovbuf, sizeof(iovbuf));
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 0)
                DHD_ERROR(("%s wl vhtmode 0 failed %d\n", __FUNCTION__, ret));
#endif /* DISABLE_11AC */
        dhd_conf_set_fw_string_cmd(dhd, "vhtmode", dhd->conf->vhtmode, 0, TRUE);

        /* Set Listen Interval */
        bcm_mkiovar("assoc_listen", (char *)&listen_interval, 4, iovbuf, sizeof(iovbuf));
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 0)
                DHD_ERROR(("%s assoc_listen failed %d\n", __FUNCTION__, ret));

#if defined(ROAM_ENABLE) || defined(DISABLE_BUILTIN_ROAM)
        /* Disable built-in roaming to allowed ext supplicant to take care of roaming */
        bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf, sizeof(iovbuf));
        dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
#endif /* ROAM_ENABLE || DISABLE_BUILTIN_ROAM */
#if defined(ROAM_ENABLE)
        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));
        bcm_mkiovar("fullroamperiod", (char *)&roam_fullscan_period, 4, iovbuf, sizeof(iovbuf));
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 0)
                DHD_ERROR(("%s: roam fullscan period set failed %d\n", __FUNCTION__, ret));
#endif /* ROAM_ENABLE */
        dhd_conf_set_roam(dhd);

#ifdef BCMCCX
        bcm_mkiovar("ccx_enable", (char *)&ccx, 4, iovbuf, sizeof(iovbuf));
        dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
#endif /* BCMCCX */
#ifdef WLTDLS
        /* by default TDLS on and auto mode off */
        _dhd_tdls_enable(dhd, true, false, NULL);
#endif /* WLTDLS */

#ifdef DHD_ENABLE_LPC
        /* Set lpc 1 */
        bcm_mkiovar("lpc", (char *)&lpc, 4, iovbuf, sizeof(iovbuf));
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                sizeof(iovbuf), TRUE, 0)) < 0) {
                DHD_ERROR(("%s Set lpc failed  %d\n", __FUNCTION__, ret));
        }
#endif /* DHD_ENABLE_LPC */
        dhd_conf_set_fw_string_cmd(dhd, "lpc", dhd->conf->lpc, 0, FALSE);

        /* Set PowerSave mode */
        if (dhd->conf->pm >= 0)
                power_mode = dhd->conf->pm;
        dhd_wl_ioctl_cmd(dhd, WLC_SET_PM, (char *)&power_mode, sizeof(power_mode), TRUE, 0);

        /* Match Host and Dongle rx alignment */
        bcm_mkiovar("bus:txglomalign", (char *)&dongle_align, 4, iovbuf, sizeof(iovbuf));
        dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);

#if defined(CUSTOMER_HW2) && defined(USE_WL_CREDALL)
        /* enable credall to reduce the chance of no bus credit happened. */
        bcm_mkiovar("bus:credall", (char *)&credall, 4, iovbuf, sizeof(iovbuf));
        dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
#endif

#if defined(BCMSDIO)
        if (glom != DEFAULT_GLOM_VALUE) {
                DHD_INFO(("%s set glom=0x%X\n", __FUNCTION__, glom));
                bcm_mkiovar("bus:txglom", (char *)&glom, 4, iovbuf, sizeof(iovbuf));
                dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
        }
#endif /* defined(BCMSDIO) */

        /* Setup timeout if Beacons are lost and roam is off to report link down */
        bcm_mkiovar("bcn_timeout", (char *)&bcn_timeout, 4, iovbuf, sizeof(iovbuf));
        dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
        /* Setup assoc_retry_max count to reconnect target AP in dongle */
        bcm_mkiovar("assoc_retry_max", (char *)&retry_max, 4, iovbuf, sizeof(iovbuf));
        dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
#if defined(AP) && !defined(WLP2P)
        /* Turn off MPC in AP mode */
        bcm_mkiovar("mpc", (char *)&mpc, 4, iovbuf, sizeof(iovbuf));
        dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
        bcm_mkiovar("apsta", (char *)&apsta, 4, iovbuf, sizeof(iovbuf));
        dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
#endif /* defined(AP) && !defined(WLP2P) */
        /*  0:HT20 in ALL, 1:HT40 in ALL, 2: HT20 in 2G HT40 in 5G */
        dhd_conf_set_fw_string_cmd(dhd, "mimo_bw_cap", dhd->conf->mimo_bw_cap, 1, TRUE);
        dhd_conf_set_fw_string_cmd(dhd, "force_wme_ac", dhd->conf->force_wme_ac, 1, FALSE);
        dhd_conf_set_fw_string_cmd(dhd, "stbc_tx", dhd->conf->stbc, 0, FALSE);
        dhd_conf_set_fw_string_cmd(dhd, "stbc_rx", dhd->conf->stbc, 0, FALSE);
        dhd_conf_set_fw_int_cmd(dhd, "WLC_SET_SRL", WLC_SET_SRL, dhd->conf->srl, 0, TRUE);
        dhd_conf_set_fw_int_cmd(dhd, "WLC_SET_LRL", WLC_SET_LRL, dhd->conf->lrl, 0, FALSE);
        dhd_conf_set_fw_int_cmd(dhd, "WLC_SET_SPECT_MANAGMENT", WLC_SET_SPECT_MANAGMENT, dhd->conf->spect, 0, FALSE);
        dhd_conf_set_fw_string_cmd(dhd, "rsdb_mode", dhd->conf->rsdb_mode, -1, TRUE);

#if defined(SOFTAP)
        if (ap_fw_loaded == TRUE) {
                dhd_wl_ioctl_cmd(dhd, WLC_SET_DTIMPRD, (char *)&dtim, sizeof(dtim), TRUE, 0);
        }
#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
                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
        bcm_mkiovar("txbf", (char *)&txbf, 4, iovbuf, sizeof(iovbuf));
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                sizeof(iovbuf), TRUE, 0)) < 0) {
                DHD_ERROR(("%s Set txbf failed  %d\n", __FUNCTION__, ret));
        }
#endif /* USE_WL_TXBF */
        dhd_conf_set_fw_string_cmd(dhd, "txbf", dhd->conf->txbf, 0, FALSE);
#ifdef USE_WL_FRAMEBURST
        /* Set frameburst to value */
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_FAKEFRAG, (char *)&frameburst,
                sizeof(frameburst), TRUE, 0)) < 0) {
                DHD_ERROR(("%s Set frameburst failed  %d\n", __FUNCTION__, ret));
        }
#endif /* USE_WL_FRAMEBURST */
        dhd_conf_set_fw_string_cmd(dhd, "frameburst", dhd->conf->frameburst, 0, FALSE);
#ifdef DHD_SET_FW_HIGHSPEED
        /* Set ack_ratio */
        bcm_mkiovar("ack_ratio", (char *)&ack_ratio, 4, iovbuf, sizeof(iovbuf));
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                sizeof(iovbuf), TRUE, 0)) < 0) {
                DHD_ERROR(("%s Set ack_ratio failed  %d\n", __FUNCTION__, ret));
        }

        /* Set ack_ratio_depth */
        bcm_mkiovar("ack_ratio_depth", (char *)&ack_ratio_depth, 4, iovbuf, sizeof(iovbuf));
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                sizeof(iovbuf), TRUE, 0)) < 0) {
                DHD_ERROR(("%s Set ack_ratio_depth failed  %d\n", __FUNCTION__, ret));
        }
#endif /* DHD_SET_FW_HIGHSPEED */
#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
#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) {
                bcm_mkiovar("ampdu_ba_wsize", (char *)&ampdu_ba_wsize, 4, iovbuf, sizeof(iovbuf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                        sizeof(iovbuf), TRUE, 0)) < 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) */
        dhd_conf_set_fw_string_cmd(dhd, "ampdu_ba_wsize", dhd->conf->ampdu_ba_wsize, 1, FALSE);

        iov_buf = (char*)kmalloc(WLC_IOCTL_SMLEN, GFP_KERNEL);
        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
        /* Configure custom IBSS beacon transmission */
        if (dhd->op_mode & DHD_FLAG_IBSS_MODE)
        {
                aibss = 1;
                bcm_mkiovar("aibss", (char *)&aibss, 4, iovbuf, sizeof(iovbuf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                        sizeof(iovbuf), TRUE, 0)) < 0) {
                        DHD_ERROR(("%s Set aibss to %d failed  %d\n",
                                __FUNCTION__, aibss, ret));
                }
#ifdef WLAIBSS_PS
                aibss_ps = 1;
                bcm_mkiovar("aibss_ps", (char *)&aibss_ps, 4, iovbuf, sizeof(iovbuf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                        sizeof(iovbuf), TRUE, 0)) < 0) {
                        DHD_ERROR(("%s Set aibss PS to %d failed  %d\n",
                                __FUNCTION__, aibss, 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);

        bcm_mkiovar("aibss_bcn_force_config", (char *)&bcn_config,
                sizeof(aibss_bcn_force_config_t), iov_buf, WLC_IOCTL_SMLEN);
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iov_buf,
                WLC_IOCTL_SMLEN, TRUE, 0)) < 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));
        }
#endif /* WLAIBSS */

#if defined(CUSTOM_AMPDU_MPDU)
        ampdu_mpdu = CUSTOM_AMPDU_MPDU;
        if (ampdu_mpdu != 0 && (ampdu_mpdu <= ampdu_ba_wsize)) {
                bcm_mkiovar("ampdu_mpdu", (char *)&ampdu_mpdu, 4, iovbuf, sizeof(iovbuf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                        sizeof(iovbuf), TRUE, 0)) < 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)) {
                bcm_mkiovar("ampdu_release", (char *)&ampdu_release, 4, iovbuf, sizeof(iovbuf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                        sizeof(iovbuf), TRUE, 0)) < 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) {
                bcm_mkiovar("amsdu_aggsf", (char *)&amsdu_aggsf, 4, iovbuf, sizeof(iovbuf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                        sizeof(iovbuf), TRUE, 0)) < 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) && defined(WLAN_AKM_SUITE_FT_8021X)
        /* Read 4-way handshake requirements */
        if (dhd_use_idsup == 1) {
                bcm_mkiovar("sup_wpa", (char *)&sup_wpa, 4, iovbuf, sizeof(iovbuf));
                ret = dhd_wl_ioctl_cmd(dhd, WLC_GET_VAR, iovbuf, sizeof(iovbuf), FALSE, 0);
                /* 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 && WLAN_AKM_SUITE_FT_8021X */
#ifdef SUPPORT_2G_VHT
        bcm_mkiovar("vht_features", (char *)&vht_features, 4, iovbuf, sizeof(iovbuf));
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 0) {
                DHD_ERROR(("%s vht_features set failed %d\n", __FUNCTION__, ret));
        }
#endif /* SUPPORT_2G_VHT */
#ifdef CUSTOM_PSPRETEND_THR
        /* Turn off MPC in AP mode */
        bcm_mkiovar("pspretend_threshold", (char *)&pspretend_thr, 4,
                iovbuf, sizeof(iovbuf));
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                sizeof(iovbuf), TRUE, 0)) < 0) {
                DHD_ERROR(("%s pspretend_threshold for HostAPD failed  %d\n",
                        __FUNCTION__, ret));
        }
#endif

        bcm_mkiovar("buf_key_b4_m4", (char *)&buf_key_b4_m4, 4, iovbuf, sizeof(iovbuf));
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf,
                sizeof(iovbuf), TRUE, 0)) < 0) {
                DHD_ERROR(("%s buf_key_b4_m4 set failed %d\n", __FUNCTION__, ret));
        }

        /* Read event_msgs mask */
        bcm_mkiovar("event_msgs", eventmask, WL_EVENTING_MASK_LEN, iovbuf, sizeof(iovbuf));
        if ((ret  = dhd_wl_ioctl_cmd(dhd, WLC_GET_VAR, iovbuf, sizeof(iovbuf), FALSE, 0)) < 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);
        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_NDIS_LINK);
        setbit(eventmask, WLC_E_MIC_ERROR);
        setbit(eventmask, WLC_E_ASSOC_REQ_IE);
        setbit(eventmask, WLC_E_ASSOC_RESP_IE);
#ifndef WL_CFG80211
        setbit(eventmask, WLC_E_PMKID_CACHE);
        setbit(eventmask, WLC_E_TXFAIL);
#endif
        setbit(eventmask, WLC_E_JOIN_START);
//      setbit(eventmask, WLC_E_SCAN_COMPLETE); // terence 20150628: remove redundant event
#ifdef WLMEDIA_HTSF
        setbit(eventmask, WLC_E_HTSFSYNC);
#endif /* WLMEDIA_HTSF */
#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 */
        setbit(eventmask, WLC_E_ROAM);
        setbit(eventmask, WLC_E_BSSID);
#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 WL_CFG80211
        setbit(eventmask, WLC_E_ESCAN_RESULT);
        if (dhd->op_mode & DHD_FLAG_P2P_MODE) {
                setbit(eventmask, WLC_E_ACTION_FRAME_RX);
                setbit(eventmask, WLC_E_P2P_DISC_LISTEN_COMPLETE);
        }
#endif /* WL_CFG80211 */
#ifdef WLAIBSS
        setbit(eventmask, WLC_E_AIBSS_TXFAIL);
#endif /* WLAIBSS */
#ifdef CUSTOMER_HW10
        clrbit(eventmask, WLC_E_TRACE);
#else
        setbit(eventmask, WLC_E_TRACE);
#endif
        /* Write updated Event mask */
        bcm_mkiovar("event_msgs", eventmask, WL_EVENTING_MASK_LEN, iovbuf, sizeof(iovbuf));
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 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*)kmalloc(msglen, GFP_KERNEL);
        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 */
        bcm_mkiovar("event_msgs_ext", (char *)eventmask_msg, msglen, iov_buf, WLC_IOCTL_SMLEN);
        ret2  = dhd_wl_ioctl_cmd(dhd, WLC_GET_VAR, iov_buf, WLC_IOCTL_SMLEN, FALSE, 0);
        if (ret2 != BCME_UNSUPPORTED)
                ret = ret2;
        if (ret2 == 0) { /* event_msgs_ext must be supported */
                bcopy(iov_buf, eventmask_msg, msglen);

#ifdef BT_WIFI_HANDOVER
                setbit(eventmask_msg->mask, WLC_E_BT_WIFI_HANDOVER_REQ);
#endif /* BT_WIFI_HANDOVER */

                /* Write updated Event mask */
                eventmask_msg->ver = EVENTMSGS_VER;
                eventmask_msg->command = EVENTMSGS_SET_MASK;
                eventmask_msg->len = ROUNDUP(WLC_E_LAST, NBBY)/NBBY;
                bcm_mkiovar("event_msgs_ext", (char *)eventmask_msg,
                        msglen, iov_buf, WLC_IOCTL_SMLEN);
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR,
                        iov_buf, WLC_IOCTL_SMLEN, TRUE, 0)) < 0) {
                        DHD_ERROR(("%s write event mask ext failed %d\n", __FUNCTION__, ret));
                        goto done;
                }
        } else if (ret2 < 0 && ret2 != BCME_UNSUPPORTED) {
                DHD_ERROR(("%s read event mask ext failed %d\n", __FUNCTION__, ret2));
                goto done;
        } /* unsupported is ok */

        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
        {
                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;
        /* Setup filter to allow only unicast */
        if (dhd_master_mode) {
                dhd->pktfilter[DHD_UNICAST_FILTER_NUM] = "100 0 0 0 0x01 0x00";
                dhd->pktfilter[DHD_BROADCAST_FILTER_NUM] = NULL;
                dhd->pktfilter[DHD_MULTICAST4_FILTER_NUM] = NULL;
                dhd->pktfilter[DHD_MULTICAST6_FILTER_NUM] = NULL;
                /* Add filter to pass multicastDNS packet and NOT filter out as Broadcast */
                dhd->pktfilter[DHD_MDNS_FILTER_NUM] = "104 0 0 0 0xFFFFFFFFFFFF 0x01005E0000FB";
                /* apply APP pktfilter */
                dhd->pktfilter[DHD_ARP_FILTER_NUM] = "105 0 0 12 0xFFFF 0x0806";
        } else
                dhd_conf_discard_pkt_filter(dhd);
        dhd_conf_add_pkt_filter(dhd);

#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
        bcm_mkiovar("nmode", (char *)&nmode, 4, iovbuf, sizeof(iovbuf));
        if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 0)
                DHD_ERROR(("%s wl nmode 0 failed %d\n", __FUNCTION__, ret));
#endif /* DISABLE_11N */

#ifdef AMPDU_VO_ENABLE
        tid.tid = PRIO_8021D_VO; /* Enable TID(6) for voice */
        tid.enable = TRUE;
        bcm_mkiovar("ampdu_tid", (char *)&tid, sizeof(tid), iovbuf, sizeof(iovbuf));
        dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);

        tid.tid = PRIO_8021D_NC; /* Enable TID(7) for voice */
        tid.enable = TRUE;
        bcm_mkiovar("ampdu_tid", (char *)&tid, sizeof(tid), iovbuf, sizeof(iovbuf));
        dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
#endif
#if defined(SOFTAP_TPUT_ENHANCE)
        if (dhd->op_mode & DHD_FLAG_HOSTAP_MODE) {
                dhd_bus_setidletime(dhd, (int)100);
#ifdef DHDTCPACK_SUPPRESS
                dhd->tcpack_sup_enabled = FALSE;
#endif
#if defined(DHD_TCP_WINSIZE_ADJUST)
                dhd_use_tcp_window_size_adjust = TRUE;
#endif

                memset(buf, 0, sizeof(buf));
                bcm_mkiovar("bus:txglom_auto_control", 0, 0, buf, sizeof(buf));
                if ((ret  = dhd_wl_ioctl_cmd(dhd, WLC_GET_VAR, buf, sizeof(buf), FALSE, 0)) < 0) {
                        glom = 0;
                        bcm_mkiovar("bus:txglom", (char *)&glom, 4, iovbuf, sizeof(iovbuf));
                        dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
                }
                else {
                        if (buf[0] == 0) {
                                glom = 1;
                                bcm_mkiovar("bus:txglom_auto_control", (char *)&glom, 4, iovbuf,
                                sizeof(iovbuf));
                                dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);
                        }
                }
        }
#endif /* SOFTAP_TPUT_ENHANCE */

        /* query for 'ver' to get version info from firmware */
        memset(buf, 0, sizeof(buf));
        ptr = buf;
        bcm_mkiovar("ver", (char *)&buf, 4, buf, sizeof(buf));
        if ((ret  = dhd_wl_ioctl_cmd(dhd, WLC_GET_VAR, buf, sizeof(buf), FALSE, 0)) < 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));
                dhd_set_version_info(dhd, buf);
        }

#if defined(BCMSDIO)
        dhd_txglom_enable(dhd, dhd->conf->bus_rxglom);
        // terence 20151210: set bus:txglom after dhd_txglom_enable since it's possible changed in dhd_conf_set_txglom_params
        dhd_conf_set_fw_string_cmd(dhd, "bus:txglom", dhd->conf->bus_txglom, 1, FALSE);
#endif /* defined(BCMSDIO) */

        dhd_conf_set_disable_proptx(dhd);
#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;
        }

#ifndef DISABLE_11N
        ret = dhd_wl_ioctl_cmd(dhd, WLC_DOWN, (char *)&wl_down, sizeof(wl_down), TRUE, 0);
        bcm_mkiovar("ampdu_hostreorder", (char *)&hostreorder, 4, iovbuf, sizeof(iovbuf));
        if ((ret2 = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 0) {
                DHD_ERROR(("%s wl ampdu_hostreorder failed %d\n", __FUNCTION__, ret2));
                if (ret2 != BCME_UNSUPPORTED)
                        ret = ret2;
                if (ret2 != BCME_OK)
                        hostreorder = 0;
        }
#endif /* DISABLE_11N */

#ifdef READ_CONFIG_FROM_FILE
        dhd_preinit_config(dhd, 0);
#endif /* READ_CONFIG_FROM_FILE */

        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 */
#ifdef 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;
                bcm_mkiovar("ap_isolate", (char *)&wl_ap_isolate, 4, iovbuf, sizeof(iovbuf));
                if ((ret = dhd_wl_ioctl_cmd(dhd, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0)) < 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
#ifdef WL11U
        dhd_interworking_enable(dhd);
#endif /* WL11U */
#ifndef WL_CFG80211
        dhd_wl_ioctl_cmd(dhd, WLC_UP, (char *)&up, sizeof(up), TRUE, 0);
#endif

done:

        if (eventmask_msg)
                kfree(eventmask_msg);
        if (iov_buf)
                kfree(iov_buf);

        return ret;
}


int
dhd_iovar(dhd_pub_t *pub, int ifidx, char *name, char *cmd_buf, uint cmd_len, int set)
{
        char buf[strlen(name) + 1 + cmd_len];
        int len = sizeof(buf);
        wl_ioctl_t ioc;
        int ret;

        len = bcm_mkiovar(name, cmd_buf, cmd_len, buf, len);

        memset(&ioc, 0, sizeof(ioc));

        ioc.cmd = set? WLC_SET_VAR : WLC_GET_VAR;
        ioc.buf = buf;
        ioc.len = len;
        ioc.set = set;

        ret = dhd_wl_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);
        if (!set && ret >= 0)
                memcpy(cmd_buf, buf, cmd_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\n", 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
        /* 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
}

/*
 * 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));

                        if (dhd->pub.busstate != DHD_BUS_DATA) {
                                DHD_ERROR(("%s: bus not ready, exit\n", __FUNCTION__));
                                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__));
                        aoe_update_host_ipv4_table(dhd_pub, ifa->ifa_address, FALSE, idx);
#else
                        dhd_aoe_hostip_clr(&dhd->pub, idx);
                        dhd_aoe_arp_clr(&dhd->pub, idx);
#endif /* AOE_IP_ALIAS_SUPPORT */
                        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 */

#ifdef CONFIG_IPV6
/* 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_pub_t       *pub = &((dhd_info_t *)dhd_info)->pub;
        int             ret;

        if (event != DHD_WQ_WORK_IPV6_NDO) {
                DHD_ERROR(("%s: unexpected event \n", __FUNCTION__));
                return;
        }

        if (!ndo_work) {
                DHD_ERROR(("%s: ipv6 work info is not initialized \n", __FUNCTION__));
                return;
        }

        if (!pub) {
                DHD_ERROR(("%s: dhd pub is not initialized \n", __FUNCTION__));
                return;
        }

        if (ndo_work->if_idx) {
                DHD_ERROR(("%s: idx %d \n", __FUNCTION__, ndo_work->if_idx));
                return;
        }

        switch (ndo_work->event) {
                case NETDEV_UP:
                        DHD_TRACE(("%s: Enable NDO and add ipv6 into table \n", __FUNCTION__));
                        ret = dhd_ndo_enable(pub, TRUE);
                        if (ret < 0) {
                                DHD_ERROR(("%s: Enabling NDO Failed %d\n", __FUNCTION__, ret));
                        }

                        ret = dhd_ndo_add_ip(pub, &ndo_work->ipv6_addr[0], ndo_work->if_idx);
                        if (ret < 0) {
                                DHD_ERROR(("%s: Adding host ip for NDO failed %d\n",
                                        __FUNCTION__, ret));
                        }
                        break;
                case NETDEV_DOWN:
                        DHD_TRACE(("%s: clear ipv6 table \n", __FUNCTION__));
                        ret = dhd_ndo_remove_ip(pub, ndo_work->if_idx);
                        if (ret < 0) {
                                DHD_ERROR(("%s: Removing host ip for NDO failed %d\n",
                                        __FUNCTION__, ret));
                                goto done;
                        }

                        ret = dhd_ndo_enable(pub, FALSE);
                        if (ret < 0) {
                                DHD_ERROR(("%s: disabling NDO Failed %d\n", __FUNCTION__, ret));
                                goto done;
                        }
                        break;
                default:
                        DHD_ERROR(("%s: unknown notifier event \n", __FUNCTION__));
                        break;
        }
done:
        /* free ndo_work. alloced while scheduling the work */
        kfree(ndo_work);

        return;
}

/*
 * Neighbor Discovery Offload: Called when an interface
 * is assigned with ipv6 address.
 * Handles only primary interface
 */
static int dhd_inet6addr_notifier_call(struct notifier_block *this,
        unsigned long event,
        void *ptr)
{
        dhd_info_t *dhd;
        dhd_pub_t *dhd_pub;
        struct inet6_ifaddr *inet6_ifa = ptr;
        struct in6_addr *ipv6_addr = &inet6_ifa->addr;
        struct ipv6_work_info_t *ndo_info;
        int idx = 0; /* REVISIT */

#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;

        if (dhd->iflist[idx] && dhd->iflist[idx]->net != inet6_ifa->idev->dev)
                return NOTIFY_DONE;
        dhd_pub = &dhd->pub;
        if (!FW_SUPPORTED(dhd_pub, 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;
        }

        ndo_info->event = event;
        ndo_info->if_idx = idx;
        memcpy(&ndo_info->ipv6_addr[0], ipv6_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_WORK_PRIORITY_LOW);
        return NOTIFY_DONE;
}
#endif /* #ifdef CONFIG_IPV6 */

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));

        ASSERT(dhd && dhd->iflist[ifidx]);
        ifp = dhd->iflist[ifidx];
        net = ifp->net;
        ASSERT(net && (ifp->idx == ifidx));

#ifndef  P2PONEINT
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31))
        ASSERT(!net->open);
        net->get_stats = dhd_get_stats;
        net->do_ioctl = dhd_ioctl_entry;
        net->hard_start_xmit = dhd_start_xmit;
        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) */
#else
        net->netdev_ops = &dhd_cfgp2p_ops_virt;
#endif /* P2PONEINT */

        /* 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_open;
                net->stop = dhd_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 = (struct iw_handler_def *)&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;
        }

#ifdef SET_RPS_CPUS
        err = custom_rps_map_set(net->_rx, RPS_CPUS_MASK, strlen(RPS_CPUS_MASK));
        if (err < 0)
                DHD_ERROR(("%s : custom_rps_map_set done. error : %d\n", __FUNCTION__, err));
#endif /* SET_RPS_CPUS */



        printf("Register interface [%s]  MAC: "MACDBG"\n\n", net->name,
                MAC2STRDBG(net->dev_addr));

#if defined(SOFTAP) && defined(WL_WIRELESS_EXT) && !defined(WL_CFG80211)
//              wl_iw_iscan_set_scan_broadcast_prep(net, 1);
#endif

#if 1 && (defined(BCMPCIE) || (defined(BCMLXSDMMC) && (LINUX_VERSION_CODE >= \
        KERNEL_VERSION(2, 6, 27))))
        if (ifidx == 0) {
#ifdef BCMLXSDMMC
                up(&dhd_registration_sem);
#endif
                if (!dhd_download_fw_on_driverload) {
                        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);
                }
        }
#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
        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(BCMPCIE_OOB_HOST_WAKE)
                        dhd_bus_oob_intr_unregister(dhdp);
#endif
                }
        }
}


void dhd_detach(dhd_pub_t *dhdp)
{
        dhd_info_t *dhd;
        unsigned long flags;
        int timer_valid = FALSE;

        if (!dhdp)
                return;

        dhd = (dhd_info_t *)dhdp->info;
        if (!dhd)
                return;

#if defined(CUSTOMER_HW20) && defined(WLANAUDIO)
        dhd_global = NULL;
#endif /* CUSTOMER_HW20 && WLANAUDIO */

        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);
        }

        if (dhd->dhd_state & DHD_ATTACH_STATE_PROT_ATTACH) {
                dhd_bus_detach(dhdp);
#ifdef PCIE_FULL_DONGLE
                dhd_flow_rings_deinit(dhdp);
#endif

                if (dhdp->prot)
                        dhd_prot_detach(dhdp);
        }

#ifdef ARP_OFFLOAD_SUPPORT
        if (dhd_inetaddr_notifier_registered) {
                dhd_inetaddr_notifier_registered = FALSE;
                unregister_inetaddr_notifier(&dhd_inetaddr_notifier);
        }
#endif /* ARP_OFFLOAD_SUPPORT */
#ifdef CONFIG_IPV6
        if (dhd_inet6addr_notifier_registered) {
                dhd_inet6addr_notifier_registered = FALSE;
                unregister_inet6addr_notifier(&dhd_inet6addr_notifier);
        }
#endif

#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) */

        /* 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];
                ASSERT(ifp);
                ASSERT(ifp->net);
                if (ifp && ifp->net) {



                        /* 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 {
#ifdef SET_RPS_CPUS
                                custom_rps_map_clear(ifp->net->_rx);
#endif /* SET_RPS_CPUS */
                                unregister_netdev(ifp->net);
                        }
                        ifp->net = NULL;
#ifdef DHD_WMF
                        dhd_wmf_cleanup(dhdp, 0);
#endif /* DHD_WMF */

                        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);

        if (dhd->dhd_state & DHD_ATTACH_STATE_THREADS_CREATED) {
                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_CFG80211
        if (dhd->dhd_state & DHD_ATTACH_STATE_CFG80211) {
                wl_cfg80211_detach(NULL);
                dhd_monitor_uninit();
        }
#endif
        /* free deferred work queue */
        dhd_deferred_work_deinit(dhd->dhd_deferred_wq);
        dhd->dhd_deferred_wq = NULL;

#ifdef SHOW_LOGTRACE
        if (dhd->event_data.fmts)
                kfree(dhd->event_data.fmts);
        if (dhd->event_data.raw_fmts)
                kfree(dhd->event_data.raw_fmts);
#endif /* SHOW_LOGTRACE */

#ifdef PNO_SUPPORT
        if (dhdp->pno_state)
                dhd_pno_deinit(dhdp);
#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
        if (dhd->dhd_state & DHD_ATTACH_STATE_WAKELOCKS_INIT) {
                DHD_TRACE(("wd wakelock count:%d\n", dhd->wakelock_wd_counter));
#ifdef CONFIG_HAS_WAKELOCK
                dhd->wakelock_counter = 0;
                dhd->wakelock_wd_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_wdwake);
#ifdef BCMPCIE_OOB_HOST_WAKE
                wake_lock_destroy(&dhd->wl_intrwake);
#endif /* BCMPCIE_OOB_HOST_WAKE */
#endif /* CONFIG_HAS_WAKELOCK */
        }




#ifdef DHDTCPACK_SUPPRESS
        /* This will free all MEM allocated for TCPACK SUPPRESS */
        dhd_tcpack_suppress_set(&dhd->pub, TCPACK_SUP_OFF);
#endif /* DHDTCPACK_SUPPRESS */
        dhd_conf_detach(dhdp);
}


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 pointer is allocated by dhd_os_prealloc then avoid MFREE */
                if (dhd &&
                        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;
                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);
        }
}

static void
dhd_module_cleanup(void)
{
        printf("%s: Enter\n", __FUNCTION__);

        dhd_bus_unregister();

        wl_android_exit();

        dhd_wifi_platform_unregister_drv();
#ifdef CUSTOMER_HW_AMLOGIC
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 14, 0))
        wifi_teardown_dt();
#endif
#endif
        printf("%s: Exit\n", __FUNCTION__);
}

static void __exit
dhd_module_exit(void)
{
        dhd_module_cleanup();
        unregister_reboot_notifier(&dhd_reboot_notifier);
}

static int __init
dhd_module_init(void)
{
        int err;
        int retry = POWERUP_MAX_RETRY;

        printf("%s: in\n", __FUNCTION__);
#ifdef CUSTOMER_HW_AMLOGIC
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 14, 0))
        if (wifi_setup_dt()) {
                printf("wifi_dt : fail to setup dt\n");
        }
#endif
#endif

        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--);

        if (err) {
#ifdef CUSTOMER_HW_AMLOGIC
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 14, 0))
                wifi_teardown_dt();
#endif
#endif
                DHD_ERROR(("%s: Failed to load driver max retry reached**\n", __FUNCTION__));
        }

        printf("%s: Exit err=%d\n", __FUNCTION__, err);
        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) {
        }

        return NOTIFY_DONE;
}


#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
#if defined(CONFIG_DEFERRED_INITCALLS)
deferred_module_init(dhd_module_init);
#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;
}

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, bool *pending)
{
        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

        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;
}

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);
                if (!wdtick)
                        DHD_OS_WD_WAKE_UNLOCK(pub);
                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);
                DHD_OS_WD_WAKE_UNLOCK(pub);
                return;
        }

        if (wdtick) {
                DHD_OS_WD_WAKE_LOCK(pub);
                dhd_watchdog_ms = (uint)wdtick;
                /* 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);
}

void *
dhd_os_open_image(char *filename)
{
        struct file *fp;

        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;

         return fp;
}

int
dhd_os_get_image_block(char *buf, int len, void *image)
{
        struct file *fp = (struct file *)image;
        int rdlen;

        if (!image)
                return 0;

        rdlen = kernel_read(fp, fp->f_pos, buf, len);
        if (rdlen > 0)
                fp->f_pos += rdlen;

        return rdlen;
}

void
dhd_os_close_image(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
void
dhd_os_tcpacklock(dhd_pub_t *pub)
{
        dhd_info_t *dhd;

        dhd = (dhd_info_t *)(pub->info);
        spin_lock_bh(&dhd->tcpack_lock);

}

void
dhd_os_tcpackunlock(dhd_pub_t *pub)
{
        dhd_info_t *dhd;

        dhd = (dhd_info_t *)(pub->info);
        spin_unlock_bh(&dhd->tcpack_lock);
}
#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) {
                DHD_ERROR(("%s: failed to alloc memory, section: %d,"
                        " size: %dbytes\n", __FUNCTION__, section, size));
                if (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) */

#if defined(CUSTOMER_HW20) && defined(WLANAUDIO)
static int
dhd_wlanaudio_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
                    wl_event_msg_t *event, void **data)
{
        int cnt;
        char eabuf[ETHER_ADDR_STR_LEN];
        struct ether_addr *addr = &event->addr;
        uint32 type = ntoh32_ua((void *)&event->event_type);

        switch (type) {
        case WLC_E_TXFAIL:
                if (addr != NULL)
                        bcm_ether_ntoa(addr, eabuf);
                else
                        return (BCME_ERROR);

                for (cnt = 0; cnt < MAX_WLANAUDIO_BLACKLIST; cnt++) {
                        if (dhd->wlanaudio_blist[cnt].is_blacklist)
                                break;

                        if (!bcmp(&dhd->wlanaudio_blist[cnt].blacklist_addr,
                                  addr, ETHER_ADDR_LEN)) {
                                /* Mac address is Same */
                                dhd->wlanaudio_blist[cnt].cnt++;

                                if (dhd->wlanaudio_blist[cnt].cnt < 15) {
                                        /* black list is false */
                                        if ((dhd->wlanaudio_blist[cnt].cnt > 10) &&
                                            (jiffies - dhd->wlanaudio_blist[cnt].txfail_jiffies
                                             < 100)) {
                                                dhd->wlanaudio_blist[cnt].is_blacklist = true;
                                                dhd->is_wlanaudio_blist = true;
                                        }
                                } else {
                                        if ((!dhd->wlanaudio_blist[cnt].is_blacklist) &&
                                           (jiffies - dhd->wlanaudio_blist[cnt].txfail_jiffies
                                            > 100)) {

                                                bzero(&dhd->wlanaudio_blist[cnt],
                                                      sizeof(struct wlanaudio_blacklist));
                                        }
                                }
                                break;
                        } else if ((!dhd->wlanaudio_blist[cnt].is_blacklist) &&
                                   (!dhd->wlanaudio_blist[cnt].cnt)) {
                                bcopy(addr,
                                      (char*)&dhd->wlanaudio_blist[cnt].blacklist_addr,
                                      ETHER_ADDR_LEN);
                                dhd->wlanaudio_blist[cnt].cnt++;
                                dhd->wlanaudio_blist[cnt].txfail_jiffies = jiffies;

                                bcm_ether_ntoa(&dhd->wlanaudio_blist[cnt].blacklist_addr, eabuf);
                                break;
                        }
                }
                break;
        case WLC_E_AUTH  :
        case WLC_E_AUTH_IND :
        case WLC_E_DEAUTH :
        case WLC_E_DEAUTH_IND :
        case WLC_E_ASSOC:
        case WLC_E_ASSOC_IND:
        case WLC_E_REASSOC:
        case WLC_E_REASSOC_IND:
        case WLC_E_DISASSOC:
        case WLC_E_DISASSOC_IND:
                {
                        int bl_cnt = 0;

                        if (addr != NULL)
                                bcm_ether_ntoa(addr, eabuf);
                        else
                                return (BCME_ERROR);

                        for (cnt = 0; cnt < MAX_WLANAUDIO_BLACKLIST; cnt++) {
                                if (!bcmp(&dhd->wlanaudio_blist[cnt].blacklist_addr,
                                          addr, ETHER_ADDR_LEN)) {
                                        /* Mac address is Same */
                                        if (dhd->wlanaudio_blist[cnt].is_blacklist) {
                                                /* black list is true */
                                                bzero(&dhd->wlanaudio_blist[cnt],
                                                      sizeof(struct wlanaudio_blacklist));
                                        }
                                }
                        }

                        for (cnt = 0; cnt < MAX_WLANAUDIO_BLACKLIST; cnt++) {
                                if (dhd->wlanaudio_blist[cnt].is_blacklist)
                                        bl_cnt++;
                        }

                        if (!bl_cnt)
                        {
                                dhd->is_wlanaudio_blist = false;
                        }

                        break;
                }
        }
        return BCME_OK;
}
#endif /* CUSTOMER_HW20 && WLANAUDIO */
static int
dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
        wl_event_msg_t *event, void **data)
{
        int bcmerror = 0;

        ASSERT(dhd != NULL);

#if defined(CUSTOMER_HW20) && defined(WLANAUDIO)
        bcmerror = dhd_wlanaudio_event(dhd, ifidx, pktdata, event, data);

        if (bcmerror != BCME_OK)
                return (bcmerror);
#endif /* CUSTOMER_HW20 && WLANAUDIO */

#ifdef SHOW_LOGTRACE
        bcmerror = wl_host_event(&dhd->pub, ifidx, pktdata, event, data, &dhd->event_data);
#else
        bcmerror = wl_host_event(&dhd->pub, ifidx, pktdata, event, data, NULL);
#endif /* SHOW_LOGTRACE */

        if (bcmerror != BCME_OK)
                return (bcmerror);

#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
        ASSERT(dhd->iflist[*ifidx] != NULL);
        ASSERT(dhd->iflist[*ifidx]->net != NULL);
        if (dhd->iflist[*ifidx]->net)
                wl_cfg80211_event(dhd->iflist[*ifidx]->net, event, *data);
#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)) {
#ifdef WLBTAMP
        /* Send up locally generated AMP HCI Events */
        case WLC_E_BTA_HCI_EVENT: {
                struct sk_buff *p, *skb;
                bcm_event_t *msg;
                wl_event_msg_t *p_bcm_event;
                char *ptr;
                uint32 len;
                uint32 pktlen;
                dhd_if_t *ifp;
                dhd_info_t *dhd;
                uchar *eth;
                int ifidx;

                len = ntoh32(event->datalen);
                pktlen = sizeof(bcm_event_t) + len + 2;
                dhd = dhdp->info;
                ifidx = dhd_ifname2idx(dhd, event->ifname);

                if ((p = PKTGET(dhdp->osh, pktlen, FALSE))) {
                        ASSERT(ISALIGNED((uintptr)PKTDATA(dhdp->osh, p), sizeof(uint32)));

                        msg = (bcm_event_t *) PKTDATA(dhdp->osh, p);

                        bcopy(&dhdp->mac, &msg->eth.ether_dhost, ETHER_ADDR_LEN);
                        bcopy(&dhdp->mac, &msg->eth.ether_shost, ETHER_ADDR_LEN);
                        ETHER_TOGGLE_LOCALADDR(&msg->eth.ether_shost);

                        msg->eth.ether_type = hton16(ETHER_TYPE_BRCM);

                        /* BCM Vendor specific header... */
                        msg->bcm_hdr.subtype = hton16(BCMILCP_SUBTYPE_VENDOR_LONG);
                        msg->bcm_hdr.version = BCMILCP_BCM_SUBTYPEHDR_VERSION;
                        bcopy(BRCM_OUI, &msg->bcm_hdr.oui[0], DOT11_OUI_LEN);

                        /* vendor spec header length + pvt data length (private indication
                         *  hdr + actual message itself)
                         */
                        msg->bcm_hdr.length = hton16(BCMILCP_BCM_SUBTYPEHDR_MINLENGTH +
                                BCM_MSG_LEN + sizeof(wl_event_msg_t) + (uint16)len);
                        msg->bcm_hdr.usr_subtype = hton16(BCMILCP_BCM_SUBTYPE_EVENT);

                        PKTSETLEN(dhdp->osh, p, (sizeof(bcm_event_t) + len + 2));

                        /* copy  wl_event_msg_t into sk_buf */

                        /* pointer to wl_event_msg_t in sk_buf */
                        p_bcm_event = &msg->event;
                        bcopy(event, p_bcm_event, sizeof(wl_event_msg_t));

                        /* copy hci event into sk_buf */
                        bcopy(data, (p_bcm_event + 1), len);

                        msg->bcm_hdr.length  = hton16(sizeof(wl_event_msg_t) +
                                ntoh16(msg->bcm_hdr.length));
                        PKTSETLEN(dhdp->osh, p, (sizeof(bcm_event_t) + len + 2));

                        ptr = (char *)(msg + 1);
                        /* Last 2 bytes of the message are 0x00 0x00 to signal that there
                         * are no ethertypes which are following this
                         */
                        ptr[len+0] = 0x00;
                        ptr[len+1] = 0x00;

                        skb = PKTTONATIVE(dhdp->osh, p);
                        eth = skb->data;
                        len = skb->len;

                        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 = eth;
                        skb->len = len;

                        /* Strip header, count, deliver upward */
                        skb_pull(skb, ETH_HLEN);

                        /* 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\n", __FUNCTION__));
                }
                break;
        } /* case WLC_E_BTA_HCI_EVENT */
#endif /* WLBTAMP */

        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);

                /* 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\n", __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;
}

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
        return;
}

#if defined(BCMSDIO) || defined(BCMPCIE)
int
dhd_net_bus_devreset(struct net_device *dev, uint8 flag)
{
        int ret = 0;
        dhd_info_t *dhd = DHD_DEV_INFO(dev);

        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
        }

#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, dhd->conf_path);
        }
#endif /* BCMSDIO */

        ret = dhd_bus_devreset(&dhd->pub, flag);
        if (ret) {
                DHD_ERROR(("%s: dhd_bus_devreset: %d\n", __FUNCTION__, ret));
                return 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) {
#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
#ifdef WL_CFG80211
                wl_cfg80211_update_power_mode(dev);
#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->pub.suspend_bcn_li_dtim = val;

        return 0;
}

#ifdef PKT_FILTER_SUPPORT
int net_os_rxfilter_add_remove(struct net_device *dev, int add_remove, int num)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        char *filterp = NULL;
        int filter_id = 0;
        int ret = 0;

        if (!dhd_master_mode)
                add_remove = !add_remove;

        if (!dhd || (num == DHD_UNICAST_FILTER_NUM) ||
                (num == DHD_MDNS_FILTER_NUM))
                return ret;
        if (num >= dhd->pub.pktfilter_count)
                return -EINVAL;
        switch (num) {
                case DHD_BROADCAST_FILTER_NUM:
                        filterp = "101 0 0 0 0xFFFFFFFFFFFF 0xFFFFFFFFFFFF";
                        filter_id = 101;
                        break;
                case DHD_MULTICAST4_FILTER_NUM:
                        filterp = "102 0 0 0 0xFFFFFF 0x01005E";
                        filter_id = 102;
                        break;
                case DHD_MULTICAST6_FILTER_NUM:
                        filterp = "103 0 0 0 0xFFFF 0x3333";
                        filter_id = 103;
                        break;
                default:
                        return -EINVAL;
        }

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

        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;
}

#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_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 (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && (1)
static void dhd_hang_process(void *dhd_info, void *event_info, u8 event)
{
        dhd_info_t *dhd;
        struct net_device *dev;

        dhd = (dhd_info_t *)dhd_info;
        dev = dhd->iflist[0]->net;

        if (dev) {
                rtnl_lock();
                dev_close(dev);
                rtnl_unlock();
#if defined(WL_WIRELESS_EXT)
                wl_iw_send_priv_event(dev, "HANG");
#endif
#if defined(WL_CFG80211)
                wl_cfg80211_hang(dev, WLAN_REASON_UNSPECIFIED);
#endif
        }
}


int dhd_os_send_hang_message(dhd_pub_t *dhdp)
{
        int ret = 0;
        if (dhdp) {
                if (!dhdp->hang_was_sent) {
                        dhdp->hang_was_sent = 1;
                        dhd_deferred_schedule_work(dhdp->info->dhd_deferred_wq, (void *)dhdp,
                                DHD_WQ_WORK_HANG_MSG, dhd_hang_process, DHD_WORK_PRIORITY_HIGH);
                }
        }
        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) {
#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
                } else {
                        DHD_ERROR(("%s: FW HANG ignored (for testing purpose) and not sent up\n",
                                __FUNCTION__));
                        /* Enforce bus down to stop any future traffic */
                        dhd->pub.busstate = DHD_BUS_DOWN;
                }
        }
        return ret;
}
#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);
}

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);
        get_customized_country_code(dhd->adapter, country_iso_code, cspec);
}
void dhd_bus_country_set(struct net_device *dev, wl_country_t *cspec, bool notify)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        if (dhd && dhd->pub.up) {
                memcpy(&dhd->pub.dhd_cspec, cspec, sizeof(wl_country_t));
#ifdef WL_CFG80211
                wl_update_wiphybands(NULL, notify);
#endif
        }
}

void dhd_bus_band_set(struct net_device *dev, uint band)
{
        dhd_info_t *dhd = DHD_DEV_INFO(dev);
        if (dhd && dhd->pub.up) {
#ifdef WL_CFG80211
                wl_update_wiphybands(NULL, true);
#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
        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)) && 1
        if (dhd)
                mutex_lock(&dhd->dhd_net_if_mutex);
#endif
}

static void dhd_net_if_unlock_local(dhd_info_t *dhd)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
        if (dhd)
                mutex_unlock(&dhd->dhd_net_if_mutex);
#endif
}

static void dhd_suspend_lock(dhd_pub_t *pub)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        if (dhd)
                mutex_lock(&dhd->dhd_suspend_mutex);
#endif
}

static void dhd_suspend_unlock(dhd_pub_t *pub)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        if (dhd)
                mutex_unlock(&dhd->dhd_suspend_mutex);
#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)
{
        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);
}

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;
}

#ifdef DHD_DEBUG
int
write_to_file(dhd_pub_t *dhd, uint8 *buf, int size)
{
        int ret = 0;
        struct file *fp;
        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("/tmp/mem_dump", O_WRONLY|O_CREAT, 0640);
        if (!fp) {
                printf("%s: open file error\n", __FUNCTION__);
                ret = -1;
                goto exit;
        }

        /* Write buf to file */
        fp->f_op->write(fp, buf, size, &pos);

exit:
        /* free buf before return */
        MFREE(dhd->osh, buf, size);
        /* close file before return */
        if (fp)
                filp_close(fp, current->files);
        /* restore previous address limit */
        set_fs(old_fs);

        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) {
                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
                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) {
                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) {
                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) {
                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
                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;
}

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) {
                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
                }
                dhd->wakelock_counter++;
                ret = dhd->wakelock_counter;
                spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
        }
        return ret;
}

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) {
                spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
                if (dhd->wakelock_counter > 0) {
                        dhd->wakelock_counter--;
                        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
                        }
                        ret = dhd->wakelock_counter;
                }
                spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
        }
        return ret;
}

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
        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)))
        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) ||
                wake_lock_active(&dhd->wl_rxwake) ||
                wake_lock_active(&dhd->wl_ctrlwake))) {
                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
        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);
#ifdef CONFIG_HAS_WAKELOCK
                /* if wakelock_wd_counter was never used : lock it at once */
                if (!dhd->wakelock_wd_counter)
                        wake_lock(&dhd->wl_wdwake);
#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) {
                        dhd->wakelock_wd_counter = 0;
#ifdef CONFIG_HAS_WAKELOCK
                        wake_unlock(&dhd->wl_wdwake);
#endif
                }
                spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
        }
        return ret;
}

#ifdef BCMPCIE_OOB_HOST_WAKE
int dhd_os_oob_irq_wake_lock_timeout(dhd_pub_t *pub, int val)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        int ret = 0;

        if (dhd) {
#ifdef CONFIG_HAS_WAKELOCK
                wake_lock_timeout(&dhd->wl_intrwake, msecs_to_jiffies(val));
#endif
        }
        return ret;
}

int dhd_os_oob_irq_wake_unlock(dhd_pub_t *pub)
{
        dhd_info_t *dhd = (dhd_info_t *)(pub->info);
        int ret = 0;

        if (dhd) {
#ifdef CONFIG_HAS_WAKELOCK
                /* if wl_intrwake is active, unlock it */
                if (wake_lock_active(&dhd->wl_intrwake)) {
                        wake_unlock(&dhd->wl_intrwake);
                }
#endif
        }
        return ret;
}
#endif /* BCMPCIE_OOB_HOST_WAKE */

/* 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) {
                spin_lock_irqsave(&dhd->wakelock_spinlock, flags);
                /* dhd_wakelock_waive/dhd_wakelock_restore must be paired */
                if (dhd->waive_wakelock == FALSE) {
                        /* 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;

        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
         */
        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
        } 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
        }
        dhd->wakelock_before_waive = 0;
exit:
        ret = dhd->wakelock_wd_counter;
        spin_unlock_irqrestore(&dhd->wakelock_spinlock, flags);
        return ret;
}

bool dhd_os_check_if_up(dhd_pub_t *pub)
{
        if (!pub)
                return FALSE;
        return pub->up;
}

/* 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);
        printf("%s\n", info_string);

        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));
}

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\n", __FUNCTION__));
                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;
}


#ifdef PROP_TXSTATUS

void dhd_wlfc_plat_init(void *dhd)
{
        return;
}

void dhd_wlfc_plat_deinit(void *dhd)
{
        return;
}

bool dhd_wlfc_skip_fc(void)
{
        return FALSE;
}
#endif /* PROP_TXSTATUS */

#ifdef BCMDBGFS

#include <linux/debugfs.h>

extern uint32 dhd_readregl(void *bp, uint32 addr);
extern uint32 dhd_writeregl(void *bp, uint32 addr, uint32 data);

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;

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_dbg_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_dbg_init(dhd_pub_t *dhdp)
{
        int err;

        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)) {
                err = PTR_ERR(g_dbgfs.debugfs_dir);
                g_dbgfs.debugfs_dir = NULL;
                return;
        }

        dhd_dbg_create();

        return;
}

void dhd_dbg_remove(void)
{
        debugfs_remove(g_dbgfs.debugfs_mem);
        debugfs_remove(g_dbgfs.debugfs_dir);

        bzero((unsigned char *) &g_dbgfs, sizeof(g_dbgfs));

}
#endif /* ifdef BCMDBGFS */

#ifdef WLMEDIA_HTSF

static
void dhd_htsf_addtxts(dhd_pub_t *dhdp, void *pktbuf)
{
        dhd_info_t *dhd = (dhd_info_t *)(dhdp->info);
        struct sk_buff *skb;
        uint32 htsf = 0;
        uint16 dport = 0, oldmagic = 0xACAC;
        char *p1;
        htsfts_t ts;

        /*  timestamp packet  */

        p1 = (char*) PKTDATA(dhdp->osh, pktbuf);

        if (PKTLEN(dhdp->osh, pktbuf) > HTSF_MINLEN) {
/*              memcpy(&proto, p1+26, 4);       */
                memcpy(&dport, p1+40, 2);
/*      proto = ((ntoh32(proto))>> 16) & 0xFF;  */
                dport = ntoh16(dport);
        }

        /* timestamp only if  icmp or udb iperf with port 5555 */
/*      if (proto == 17 && dport == tsport) { */
        if (dport >= tsport && dport <= tsport + 20) {

                skb = (struct sk_buff *) pktbuf;

                htsf = dhd_get_htsf(dhd, 0);
                memset(skb->data + 44, 0, 2); /* clear checksum */
                memcpy(skb->data+82, &oldmagic, 2);
                memcpy(skb->data+84, &htsf, 4);

                memset(&ts, 0, sizeof(htsfts_t));
                ts.magic  = HTSFMAGIC;
                ts.prio   = PKTPRIO(pktbuf);
                ts.seqnum = htsf_seqnum++;
                ts.c10    = get_cycles();
                ts.t10    = htsf;
                ts.endmagic = HTSFENDMAGIC;

                memcpy(skb->data + HTSF_HOSTOFFSET, &ts, sizeof(ts));
        }
}

static void dhd_dump_htsfhisto(histo_t *his, char *s)
{
        int pktcnt = 0, curval = 0, i;
        for (i = 0; i < (NUMBIN-2); i++) {
                curval += 500;
                printf("%d ",  his->bin[i]);
                pktcnt += his->bin[i];
        }
        printf(" max: %d TotPkt: %d neg: %d [%s]\n", his->bin[NUMBIN-2], pktcnt,
                his->bin[NUMBIN-1], s);
}

static
void sorttobin(int value, histo_t *histo)
{
        int i, binval = 0;

        if (value < 0) {
                histo->bin[NUMBIN-1]++;
                return;
        }
        if (value > histo->bin[NUMBIN-2])  /* store the max value  */
                histo->bin[NUMBIN-2] = value;

        for (i = 0; i < (NUMBIN-2); i++) {
                binval += 500; /* 500m s bins */
                if (value <= binval) {
                        histo->bin[i]++;
                        return;
                }
        }
        histo->bin[NUMBIN-3]++;
}

static
void dhd_htsf_addrxts(dhd_pub_t *dhdp, void *pktbuf)
{
        dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
        struct sk_buff *skb;
        char *p1;
        uint16 old_magic;
        int d1, d2, d3, end2end;
        htsfts_t *htsf_ts;
        uint32 htsf;

        skb = PKTTONATIVE(dhdp->osh, pktbuf);
        p1 = (char*)PKTDATA(dhdp->osh, pktbuf);

        if (PKTLEN(osh, pktbuf) > HTSF_MINLEN) {
                memcpy(&old_magic, p1+78, 2);
                htsf_ts = (htsfts_t*) (p1 + HTSF_HOSTOFFSET - 4);
        }
        else
                return;

        if (htsf_ts->magic == HTSFMAGIC) {
                htsf_ts->tE0 = dhd_get_htsf(dhd, 0);
                htsf_ts->cE0 = get_cycles();
        }

        if (old_magic == 0xACAC) {

                tspktcnt++;
                htsf = dhd_get_htsf(dhd, 0);
                memcpy(skb->data+92, &htsf, sizeof(uint32));

                memcpy(&ts[tsidx].t1, skb->data+80, 16);

                d1 = ts[tsidx].t2 - ts[tsidx].t1;
                d2 = ts[tsidx].t3 - ts[tsidx].t2;
                d3 = ts[tsidx].t4 - ts[tsidx].t3;
                end2end = ts[tsidx].t4 - ts[tsidx].t1;

                sorttobin(d1, &vi_d1);
                sorttobin(d2, &vi_d2);
                sorttobin(d3, &vi_d3);
                sorttobin(end2end, &vi_d4);

                if (end2end > 0 && end2end >  maxdelay) {
                        maxdelay = end2end;
                        maxdelaypktno = tspktcnt;
                        memcpy(&maxdelayts, &ts[tsidx], 16);
                }
                if (++tsidx >= TSMAX)
                        tsidx = 0;
        }
}

uint32 dhd_get_htsf(dhd_info_t *dhd, int ifidx)
{
        uint32 htsf = 0, cur_cycle, delta, delta_us;
        uint32    factor, baseval, baseval2;
        cycles_t t;

        t = get_cycles();
        cur_cycle = t;

        if (cur_cycle >  dhd->htsf.last_cycle)
                delta = cur_cycle -  dhd->htsf.last_cycle;
        else {
                delta = cur_cycle + (0xFFFFFFFF -  dhd->htsf.last_cycle);
        }

        delta = delta >> 4;

        if (dhd->htsf.coef) {
                /* times ten to get the first digit */
                factor = (dhd->htsf.coef*10 + dhd->htsf.coefdec1);
                baseval  = (delta*10)/factor;
                baseval2 = (delta*10)/(factor+1);
                delta_us  = (baseval -  (((baseval - baseval2) * dhd->htsf.coefdec2)) / 10);
                htsf = (delta_us << 4) +  dhd->htsf.last_tsf + HTSF_BUS_DELAY;
        }
        else {
                DHD_ERROR(("-------dhd->htsf.coef = 0 -------\n"));
        }

        return htsf;
}

static void dhd_dump_latency(void)
{
        int i, max = 0;
        int d1, d2, d3, d4, d5;

        printf("T1       T2       T3       T4           d1  d2   t4-t1     i    \n");
        for (i = 0; i < TSMAX; i++) {
                d1 = ts[i].t2 - ts[i].t1;
                d2 = ts[i].t3 - ts[i].t2;
                d3 = ts[i].t4 - ts[i].t3;
                d4 = ts[i].t4 - ts[i].t1;
                d5 = ts[max].t4-ts[max].t1;
                if (d4 > d5 && d4 > 0)  {
                        max = i;
                }
                printf("%08X %08X %08X %08X \t%d %d %d   %d i=%d\n",
                        ts[i].t1, ts[i].t2, ts[i].t3, ts[i].t4,
                        d1, d2, d3, d4, i);
        }

        printf("current idx = %d \n", tsidx);

        printf("Highest latency %d pkt no.%d total=%d\n", maxdelay, maxdelaypktno, tspktcnt);
        printf("%08X %08X %08X %08X \t%d %d %d   %d\n",
        maxdelayts.t1, maxdelayts.t2, maxdelayts.t3, maxdelayts.t4,
        maxdelayts.t2 - maxdelayts.t1,
        maxdelayts.t3 - maxdelayts.t2,
        maxdelayts.t4 - maxdelayts.t3,
        maxdelayts.t4 - maxdelayts.t1);
}


static int
dhd_ioctl_htsf_get(dhd_info_t *dhd, int ifidx)
{
        wl_ioctl_t ioc;
        char buf[32];
        int ret;
        uint32 s1, s2;

        struct tsf {
                uint32 low;
                uint32 high;
        } tsf_buf;

        memset(&ioc, 0, sizeof(ioc));
        memset(&tsf_buf, 0, sizeof(tsf_buf));

        ioc.cmd = WLC_GET_VAR;
        ioc.buf = buf;
        ioc.len = (uint)sizeof(buf);
        ioc.set = FALSE;

        strncpy(buf, "tsf", sizeof(buf) - 1);
        buf[sizeof(buf) - 1] = '\0';
        s1 = dhd_get_htsf(dhd, 0);
        if ((ret = dhd_wl_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) {
                if (ret == -EIO) {
                        DHD_ERROR(("%s: tsf is not supported by device\n",
                                dhd_ifname(&dhd->pub, ifidx)));
                        return -EOPNOTSUPP;
                }
                return ret;
        }
        s2 = dhd_get_htsf(dhd, 0);

        memcpy(&tsf_buf, buf, sizeof(tsf_buf));
        printf(" TSF_h=%04X lo=%08X Calc:htsf=%08X, coef=%d.%d%d delta=%d ",
                tsf_buf.high, tsf_buf.low, s2, dhd->htsf.coef, dhd->htsf.coefdec1,
                dhd->htsf.coefdec2, s2-tsf_buf.low);
        printf("lasttsf=%08X lastcycle=%08X\n", dhd->htsf.last_tsf, dhd->htsf.last_cycle);
        return 0;
}

void htsf_update(dhd_info_t *dhd, void *data)
{
        static ulong  cur_cycle = 0, prev_cycle = 0;
        uint32 htsf, tsf_delta = 0;
        uint32 hfactor = 0, cyc_delta, dec1 = 0, dec2, dec3, tmp;
        ulong b, a;
        cycles_t t;

        /* cycles_t in inlcude/mips/timex.h */

        t = get_cycles();

        prev_cycle = cur_cycle;
        cur_cycle = t;

        if (cur_cycle > prev_cycle)
                cyc_delta = cur_cycle - prev_cycle;
        else {
                b = cur_cycle;
                a = prev_cycle;
                cyc_delta = cur_cycle + (0xFFFFFFFF - prev_cycle);
        }

        if (data == NULL)
                printf(" tsf update ata point er is null \n");

        memcpy(&prev_tsf, &cur_tsf, sizeof(tsf_t));
        memcpy(&cur_tsf, data, sizeof(tsf_t));

        if (cur_tsf.low == 0) {
                DHD_INFO((" ---- 0 TSF, do not update, return\n"));
                return;
        }

        if (cur_tsf.low > prev_tsf.low)
                tsf_delta = (cur_tsf.low - prev_tsf.low);
        else {
                DHD_INFO((" ---- tsf low is smaller cur_tsf= %08X, prev_tsf=%08X, \n",
                 cur_tsf.low, prev_tsf.low));
                if (cur_tsf.high > prev_tsf.high) {
                        tsf_delta = cur_tsf.low + (0xFFFFFFFF - prev_tsf.low);
                        DHD_INFO((" ---- Wrap around tsf coutner  adjusted TSF=%08X\n", tsf_delta));
                }
                else
                        return; /* do not update */
        }

        if (tsf_delta)  {
                hfactor = cyc_delta / tsf_delta;
                tmp  =  (cyc_delta - (hfactor * tsf_delta))*10;
                dec1 =  tmp/tsf_delta;
                dec2 =  ((tmp - dec1*tsf_delta)*10) / tsf_delta;
                tmp  =  (tmp   - (dec1*tsf_delta))*10;
                dec3 =  ((tmp - dec2*tsf_delta)*10) / tsf_delta;

                if (dec3 > 4) {
                        if (dec2 == 9) {
                                dec2 = 0;
                                if (dec1 == 9) {
                                        dec1 = 0;
                                        hfactor++;
                                }
                                else {
                                        dec1++;
                                }
                        }
                        else
                                dec2++;
                }
        }

        if (hfactor) {
                htsf = ((cyc_delta * 10)  / (hfactor*10+dec1)) + prev_tsf.low;
                dhd->htsf.coef = hfactor;
                dhd->htsf.last_cycle = cur_cycle;
                dhd->htsf.last_tsf = cur_tsf.low;
                dhd->htsf.coefdec1 = dec1;
                dhd->htsf.coefdec2 = dec2;
        }
        else {
                htsf = prev_tsf.low;
        }
}

#endif /* WLMEDIA_HTSF */

#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);
#endif /* DHD_OF_SUPPORT */
        DHD_TRACE(("%s: set(%d) cpucore success!\n", __FUNCTION__, set));

        return;
}
#endif /* CUSTOM_SET_CPUCORE */
#if defined(DHD_TCP_WINSIZE_ADJUST)
static int dhd_port_list_match(int port)
{
        int i;
        for (i = 0; i < MAX_TARGET_PORTS; i++) {
                if (target_ports[i] == port)
                        return 1;
        }
        return 0;
}
static void dhd_adjust_tcp_winsize(int op_mode, struct sk_buff *skb)
{
        struct iphdr *ipheader;
        struct tcphdr *tcpheader;
        uint16 win_size;
        int32 incremental_checksum;

        if (!(op_mode & DHD_FLAG_HOSTAP_MODE))
                return;
        if (skb == NULL || skb->data == NULL)
                return;

        ipheader = (struct iphdr*)(skb->data);

        if (ipheader->protocol == IPPROTO_TCP) {
                tcpheader = (struct tcphdr*) skb_pull(skb, (ipheader->ihl)<<2);
                if (tcpheader) {
                        win_size = ntoh16(tcpheader->window);
                        if (win_size < MIN_TCP_WIN_SIZE &&
                                dhd_port_list_match(ntoh16(tcpheader->dest))) {
                                incremental_checksum = ntoh16(tcpheader->check);
                                incremental_checksum += win_size - win_size*WIN_SIZE_SCALE_FACTOR;
                                if (incremental_checksum < 0)
                                        --incremental_checksum;
                                tcpheader->window = hton16(win_size*WIN_SIZE_SCALE_FACTOR);
                                tcpheader->check = hton16((unsigned short)incremental_checksum);
                        }
                }
                skb_push(skb, (ipheader->ihl)<<2);
        }
}
#endif /* DHD_TCP_WINSIZE_ADJUST */

/* 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];

        ifp->ap_isolate = val;

        return 0;
}

#ifdef DHD_WMF
/* Returns interface specific WMF configuration */
dhd_wmf_t* dhd_wmf_conf(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->wmf;
}
#endif /* DHD_WMF */


#ifdef DHD_UNICAST_DHCP
static int
dhd_get_pkt_ether_type(dhd_pub_t *pub, void *pktbuf,
        uint8 **data_ptr, int *len_ptr, uint16 *et_ptr, bool *snap_ptr)
{
        uint8 *frame = PKTDATA(pub->osh, pktbuf);
        int length = PKTLEN(pub->osh, pktbuf);
        uint8 *pt;                      /* Pointer to type field */
        uint16 ethertype;
        bool snap = FALSE;
        /* Process Ethernet II or SNAP-encapsulated 802.3 frames */
        if (length < ETHER_HDR_LEN) {
                DHD_ERROR(("dhd: %s: short eth frame (%d)\n",
                           __FUNCTION__, length));
                return BCME_ERROR;
        } else if (ntoh16_ua(frame + ETHER_TYPE_OFFSET) >= ETHER_TYPE_MIN) {
                /* Frame is Ethernet II */
                pt = frame + ETHER_TYPE_OFFSET;
        } else if (length >= ETHER_HDR_LEN + SNAP_HDR_LEN + ETHER_TYPE_LEN &&
                   !bcmp(llc_snap_hdr, frame + ETHER_HDR_LEN, SNAP_HDR_LEN)) {
                pt = frame + ETHER_HDR_LEN + SNAP_HDR_LEN;
                snap = TRUE;
        } else {
                DHD_INFO(("DHD: %s: non-SNAP 802.3 frame\n",
                           __FUNCTION__));
                return BCME_ERROR;
        }

        ethertype = ntoh16_ua(pt);

        /* Skip VLAN tag, if any */
        if (ethertype == ETHER_TYPE_8021Q) {
                pt += VLAN_TAG_LEN;

                if ((pt + ETHER_TYPE_LEN) > (frame + length)) {
                        DHD_ERROR(("dhd: %s: short VLAN frame (%d)\n",
                                  __FUNCTION__, length));
                        return BCME_ERROR;
                }

                ethertype = ntoh16_ua(pt);
        }

        *data_ptr = pt + ETHER_TYPE_LEN;
        *len_ptr = length - (pt + ETHER_TYPE_LEN - frame);
        *et_ptr = ethertype;
        *snap_ptr = snap;
        return BCME_OK;
}

static int
dhd_get_pkt_ip_type(dhd_pub_t *pub, void *pktbuf,
        uint8 **data_ptr, int *len_ptr, uint8 *prot_ptr)
{
        struct ipv4_hdr *iph;           /* IP frame pointer */
        int iplen;                      /* IP frame length */
        uint16 ethertype, iphdrlen, ippktlen;
        uint16 iph_frag;
        uint8 prot;
        bool snap;

        if (dhd_get_pkt_ether_type(pub, pktbuf, (uint8 **)&iph,
            &iplen, &ethertype, &snap) != 0)
                return BCME_ERROR;

        if (ethertype != ETHER_TYPE_IP) {
                return BCME_ERROR;
        }

        /* We support IPv4 only */
        if (iplen < IPV4_OPTIONS_OFFSET || (IP_VER(iph) != IP_VER_4)) {
                return BCME_ERROR;
        }

        /* Header length sanity */
        iphdrlen = IPV4_HLEN(iph);

        /*
         * Packet length sanity; sometimes we receive eth-frame size bigger
         * than the IP content, which results in a bad tcp chksum
         */
        ippktlen = ntoh16(iph->tot_len);
        if (ippktlen < iplen) {

                DHD_INFO(("%s: extra frame length ignored\n",
                          __FUNCTION__));
                iplen = ippktlen;
        } else if (ippktlen > iplen) {
                DHD_ERROR(("dhd: %s: truncated IP packet (%d)\n",
                           __FUNCTION__, ippktlen - iplen));
                return BCME_ERROR;
        }

        if (iphdrlen < IPV4_OPTIONS_OFFSET || iphdrlen > iplen) {
                DHD_ERROR(("DHD: %s: IP-header-len (%d) out of range (%d-%d)\n",
                           __FUNCTION__, iphdrlen, IPV4_OPTIONS_OFFSET, iplen));
                return BCME_ERROR;
        }

        /*
         * We don't handle fragmented IP packets.  A first frag is indicated by the MF
         * (more frag) bit and a subsequent frag is indicated by a non-zero frag offset.
         */
        iph_frag = ntoh16(iph->frag);

        if ((iph_frag & IPV4_FRAG_MORE) || (iph_frag & IPV4_FRAG_OFFSET_MASK) != 0) {
                DHD_INFO(("DHD:%s: IP fragment not handled\n",
                           __FUNCTION__));
                return BCME_ERROR;
        }

        prot = IPV4_PROT(iph);

        *data_ptr = (((uint8 *)iph) + iphdrlen);
        *len_ptr = iplen - iphdrlen;
        *prot_ptr = prot;
        return BCME_OK;
}

/** check the packet type, if it is DHCP ACK/REPLY, convert into unicast packet */
static
int dhd_convert_dhcp_broadcast_ack_to_unicast(dhd_pub_t *pub, void *pktbuf, int ifidx)
{
        dhd_sta_t* stainfo;
        uint8 *eh = PKTDATA(pub->osh, pktbuf);
        uint8 *udph;
        uint8 *dhcp;
        uint8 *chaddr;
        int udpl;
        int dhcpl;
        uint16 port;
        uint8 prot;

        if (!ETHER_ISMULTI(eh + ETHER_DEST_OFFSET))
            return BCME_ERROR;
        if (dhd_get_pkt_ip_type(pub, pktbuf, &udph, &udpl, &prot) != 0)
                return BCME_ERROR;
        if (prot != IP_PROT_UDP)
                return BCME_ERROR;
        /* check frame length, at least UDP_HDR_LEN */
        if (udpl < UDP_HDR_LEN) {
                DHD_ERROR(("DHD: %s: short UDP frame, ignored\n",
                    __FUNCTION__));
                return BCME_ERROR;
        }
        port = ntoh16_ua(udph + UDP_DEST_PORT_OFFSET);
        /* only process DHCP packets from server to client */
        if (port != DHCP_PORT_CLIENT)
                return BCME_ERROR;

        dhcp = udph + UDP_HDR_LEN;
        dhcpl = udpl - UDP_HDR_LEN;

        if (dhcpl < DHCP_CHADDR_OFFSET + ETHER_ADDR_LEN) {
                DHD_ERROR(("DHD: %s: short DHCP frame, ignored\n",
                    __FUNCTION__));
                return BCME_ERROR;
        }
        /* only process DHCP reply(offer/ack) packets */
        if (*(dhcp + DHCP_TYPE_OFFSET) != DHCP_TYPE_REPLY)
                return BCME_ERROR;
        chaddr = dhcp + DHCP_CHADDR_OFFSET;
        stainfo = dhd_find_sta(pub, ifidx, chaddr);
        if (stainfo) {
                bcopy(chaddr, eh + ETHER_DEST_OFFSET, ETHER_ADDR_LEN);
                return BCME_OK;
        }
        return BCME_ERROR;
}
#endif /* DHD_UNICAST_DHD */
#ifdef DHD_L2_FILTER
/* Check if packet type is ICMP ECHO */
static
int dhd_l2_filter_block_ping(dhd_pub_t *pub, void *pktbuf, int ifidx)
{
        struct bcmicmp_hdr *icmph;
        int udpl;
        uint8 prot;

        if (dhd_get_pkt_ip_type(pub, pktbuf, (uint8 **)&icmph, &udpl, &prot) != 0)
                return BCME_ERROR;
        if (prot == IP_PROT_ICMP) {
                if (icmph->type == ICMP_TYPE_ECHO_REQUEST)
                        return BCME_OK;
        }
        return BCME_ERROR;
}
#endif /* DHD_L2_FILTER */

#ifdef SET_RPS_CPUS
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);
                DHD_ERROR(("%s : mapping cpu fail.\n", __FUNCTION__));
                map = NULL;
        }

        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 */

#if defined(CUSTOMER_HW20) && defined(WLANAUDIO)
void
SDA_setSharedMemory4Send(unsigned int buffer_id,
                         unsigned char *buffer, unsigned int buffer_size,
                         unsigned int packet_size, unsigned int headroom_size)
{
        dhd_info_t *dhd = dhd_global;

        sda_packet_length = packet_size;

        ASSERT(dhd);
        if (dhd == NULL)
                return;
}

void
SDA_registerCallback4SendDone(SDA_SendDoneCallBack packet_cb)
{
        dhd_info_t *dhd = dhd_global;

        ASSERT(dhd);
        if (dhd == NULL)
                return;
}


unsigned long long
SDA_getTsf(unsigned char vif_id)
{
        dhd_info_t *dhd = dhd_global;
        uint64 tsf_val;
        char buf[WLC_IOCTL_SMLEN];
        int ifidx = 0;

        struct tsf {
                uint32 low;
                uint32 high;
        } tsf_buf;

        memset(buf, 0, sizeof(buf));

        if (vif_id == 0) /* wlan0 tsf */
                ifidx = dhd_ifname2idx(dhd, "wlan0");
        else if (vif_id == 1) /* p2p0 tsf */
                ifidx = dhd_ifname2idx(dhd, "p2p0");

        bcm_mkiovar("tsf_bss", 0, 0, buf, sizeof(buf));

        if (dhd_wl_ioctl_cmd(&dhd->pub, WLC_GET_VAR, buf, sizeof(buf), FALSE, ifidx) < 0) {
                DHD_ERROR(("%s wl ioctl error\n", __FUNCTION__));
                return 0;
        }

        memcpy(&tsf_buf, buf, sizeof(tsf_buf));
        tsf_val = (uint64)tsf_buf.high;
        DHD_TRACE(("%s tsf high 0x%08x, low 0x%08x\n",
                   __FUNCTION__, tsf_buf.high, tsf_buf.low));

        return ((tsf_val << 32) | tsf_buf.low);
}
EXPORT_SYMBOL(SDA_getTsf);

unsigned int
SDA_syncTsf(void)
{
        dhd_info_t *dhd = dhd_global;
        int tsf_sync = 1;
        char iovbuf[WLC_IOCTL_SMLEN];

        bcm_mkiovar("wa_tsf_sync", (char *)&tsf_sync, 4, iovbuf, sizeof(iovbuf));
        dhd_wl_ioctl_cmd(&dhd->pub, WLC_SET_VAR, iovbuf, sizeof(iovbuf), TRUE, 0);

        DHD_TRACE(("%s\n", __FUNCTION__));
        return 0;
}

extern struct net_device *wl0dot1_dev;

void
BCMFASTPATH SDA_function4Send(uint buffer_id, void *packet, uint packet_size)
{
        struct sk_buff *skb;
        sda_packet_t *shm_packet = packet;
        dhd_info_t *dhd = dhd_global;
        int cnt;

        static unsigned int cnt_t = 1;

        ASSERT(dhd);
        if (dhd == NULL)
                return;

        if (dhd->is_wlanaudio_blist) {
                for (cnt = 0; cnt < MAX_WLANAUDIO_BLACKLIST; cnt++) {
                        if (dhd->wlanaudio_blist[cnt].is_blacklist == true) {
                                if (!bcmp(dhd->wlanaudio_blist[cnt].blacklist_addr.octet,
                                          shm_packet->headroom.ether_dhost, ETHER_ADDR_LEN))
                                        return;
                        }
                }
        }

        if ((cnt_t % 10000) == 0)
                cnt_t = 0;

        cnt_t++;

        /* packet_size may be smaller than SDA_SHM_PKT_SIZE, remaining will be garbage */
#define TXOFF 26
        skb = __dev_alloc_skb(TXOFF + sda_packet_length - SDA_PKT_HEADER_SIZE, GFP_ATOMIC);

        skb_reserve(skb, TXOFF - SDA_HEADROOM_SIZE);
        skb_put(skb, sda_packet_length - SDA_PKT_HEADER_SIZE + SDA_HEADROOM_SIZE);
        skb->priority = PRIO_8021D_VO; /* PRIO_8021D_VO or PRIO_8021D_VI */

        /* p2p_net  */
        skb->dev = wl0dot1_dev;
        shm_packet->txTsf = 0x0;
        shm_packet->rxTsf = 0x0;
        memcpy(skb->data, &shm_packet->headroom,
               sda_packet_length - OFFSETOF(sda_packet_t, headroom));
        shm_packet->desc.ready_to_copy = 0;

        dhd_start_xmit(skb, skb->dev);
}

void
SDA_registerCallback4Recv(unsigned char *pBufferTotal,
                          unsigned int BufferTotalSize)
{
        dhd_info_t *dhd = dhd_global;

        ASSERT(dhd);
        if (dhd == NULL)
                return;
}


void
SDA_setSharedMemory4Recv(unsigned char *pBufferTotal,
                         unsigned int BufferTotalSize,
                         unsigned int BufferUnitSize,
                         unsigned int Headroomsize)
{
        dhd_info_t *dhd = dhd_global;

        ASSERT(dhd);
        if (dhd == NULL)
                return;
}


void
SDA_function4RecvDone(unsigned char * pBuffer, unsigned int BufferSize)
{
        dhd_info_t *dhd = dhd_global;

        ASSERT(dhd);
        if (dhd == NULL)
                return;
}

EXPORT_SYMBOL(SDA_setSharedMemory4Send);
EXPORT_SYMBOL(SDA_registerCallback4SendDone);
EXPORT_SYMBOL(SDA_syncTsf);
EXPORT_SYMBOL(SDA_function4Send);
EXPORT_SYMBOL(SDA_registerCallback4Recv);
EXPORT_SYMBOL(SDA_setSharedMemory4Recv);
EXPORT_SYMBOL(SDA_function4RecvDone);

#endif /* CUSTOMER_HW20 && WLANAUDIO */

void *dhd_get_pub(struct net_device *dev)
{
        dhd_info_t *dhdinfo = *(dhd_info_t **)netdev_priv(dev);
        if (dhdinfo)
                return (void *)&dhdinfo->pub;
        else
                return NULL;
}

bool dhd_os_wd_timer_enabled(void *bus)
{
        dhd_pub_t *pub = bus;
        dhd_info_t *dhd = (dhd_info_t *)pub->info;

        DHD_TRACE(("%s: Enter\n", __FUNCTION__));
        if (!dhd) {
                DHD_ERROR(("%s: dhd NULL\n", __FUNCTION__));
                return FALSE;
        }
        return dhd->wd_timer_valid;
}