--- /dev/null
+/*
+ * Copyright (c) 2010 Broadcom Corporation
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define __UNDEF_NO_VERSION__
+
+#include <linux/etherdevice.h>
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/firmware.h>
++#include <linux/interrupt.h>
+#include <net/mac80211.h>
+#include <defs.h>
+#include "nicpci.h"
+#include "phy/phy_int.h"
+#include "d11.h"
+#include "channel.h"
+#include "scb.h"
+#include "pub.h"
+#include "ucode_loader.h"
+#include "mac80211_if.h"
+
+#define N_TX_QUEUES 4 /* #tx queues on mac80211<->driver interface */
+
+#define LOCK(wl) spin_lock_bh(&(wl)->lock)
+#define UNLOCK(wl) spin_unlock_bh(&(wl)->lock)
+
+/* locking from inside brcms_isr */
+#define ISR_LOCK(wl, flags)\
+ do {\
+ spin_lock(&(wl)->isr_lock);\
+ (void)(flags); } \
+ while (0)
+
+#define ISR_UNLOCK(wl, flags)\
+ do {\
+ spin_unlock(&(wl)->isr_lock);\
+ (void)(flags); } \
+ while (0)
+
+/* locking under LOCK() to synchronize with brcms_isr */
+#define INT_LOCK(wl, flags) spin_lock_irqsave(&(wl)->isr_lock, flags)
+#define INT_UNLOCK(wl, flags) spin_unlock_irqrestore(&(wl)->isr_lock, flags)
+
+static void brcms_timer(unsigned long data);
+static void _brcms_timer(struct brcms_timer *t);
+
+
+static int ieee_hw_init(struct ieee80211_hw *hw);
+static int ieee_hw_rate_init(struct ieee80211_hw *hw);
+
+static int wl_linux_watchdog(void *ctx);
+
+/* Flags we support */
+#define MAC_FILTERS (FIF_PROMISC_IN_BSS | \
+ FIF_ALLMULTI | \
+ FIF_FCSFAIL | \
+ FIF_PLCPFAIL | \
+ FIF_CONTROL | \
+ FIF_OTHER_BSS | \
+ FIF_BCN_PRBRESP_PROMISC)
+
+static int n_adapters_found;
+
+static int brcms_request_fw(struct brcms_info *wl, struct pci_dev *pdev);
+static void brcms_release_fw(struct brcms_info *wl);
+
+/* local prototypes */
+static void brcms_dpc(unsigned long data);
+static irqreturn_t brcms_isr(int irq, void *dev_id);
+
+static int __devinit brcms_pci_probe(struct pci_dev *pdev,
+ const struct pci_device_id *ent);
+static void brcms_remove(struct pci_dev *pdev);
+static void brcms_free(struct brcms_info *wl);
+static void brcms_set_basic_rate(struct wl_rateset *rs, u16 rate, bool is_br);
+
+MODULE_AUTHOR("Broadcom Corporation");
+MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver.");
+MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN cards");
+MODULE_LICENSE("Dual BSD/GPL");
+
+/* recognized PCI IDs */
+static DEFINE_PCI_DEVICE_TABLE(brcms_pci_id_table) = {
+ {PCI_VENDOR_ID_BROADCOM, 0x4357, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 43225 2G */
+ {PCI_VENDOR_ID_BROADCOM, 0x4353, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 43224 DUAL */
+ {PCI_VENDOR_ID_BROADCOM, 0x4727, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, /* 4313 DUAL */
+ /* 43224 Ven */
+ {PCI_VENDOR_ID_BROADCOM, 0x0576, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ {0}
+};
+
+MODULE_DEVICE_TABLE(pci, brcms_pci_id_table);
+
+#ifdef BCMDBG
+static int msglevel = 0xdeadbeef;
+module_param(msglevel, int, 0);
+static int phymsglevel = 0xdeadbeef;
+module_param(phymsglevel, int, 0);
+#endif /* BCMDBG */
+
+#define HW_TO_WL(hw) (hw->priv)
+#define WL_TO_HW(wl) (wl->pub->ieee_hw)
+
+/* MAC80211 callback functions */
+static int brcms_ops_start(struct ieee80211_hw *hw);
+static void brcms_ops_stop(struct ieee80211_hw *hw);
+static int brcms_ops_add_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif);
+static void brcms_ops_remove_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif);
+static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed);
+static void brcms_ops_bss_info_changed(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *info,
+ u32 changed);
+static void brcms_ops_configure_filter(struct ieee80211_hw *hw,
+ unsigned int changed_flags,
+ unsigned int *total_flags, u64 multicast);
+static int brcms_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
+ bool set);
+static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw);
+static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw);
+static void brcms_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf);
+static int brcms_ops_get_stats(struct ieee80211_hw *hw,
+ struct ieee80211_low_level_stats *stats);
+static void brcms_ops_sta_notify(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ enum sta_notify_cmd cmd,
+ struct ieee80211_sta *sta);
+static int brcms_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
+ const struct ieee80211_tx_queue_params *params);
+static u64 brcms_ops_get_tsf(struct ieee80211_hw *hw);
+static int brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta);
+static int brcms_ops_sta_remove(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta);
+static int brcms_ops_ampdu_action(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ enum ieee80211_ampdu_mlme_action action,
+ struct ieee80211_sta *sta, u16 tid, u16 *ssn,
+ u8 buf_size);
+static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw);
+static void brcms_ops_flush(struct ieee80211_hw *hw, bool drop);
+
+static void brcms_ops_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+{
+ struct brcms_info *wl = hw->priv;
+
+ LOCK(wl);
+ if (!wl->pub->up) {
+ wiphy_err(wl->wiphy, "ops->tx called while down\n");
+ kfree_skb(skb);
+ goto done;
+ }
+ brcms_c_sendpkt_mac80211(wl->wlc, skb, hw);
+ done:
+ UNLOCK(wl);
+}
+
+static int brcms_ops_start(struct ieee80211_hw *hw)
+{
+ struct brcms_info *wl = hw->priv;
+ bool blocked;
+ /*
+ struct ieee80211_channel *curchan = hw->conf.channel;
+ */
+
+ ieee80211_wake_queues(hw);
+ LOCK(wl);
+ blocked = brcms_rfkill_set_hw_state(wl);
+ UNLOCK(wl);
+ if (!blocked)
+ wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
+
+ return 0;
+}
+
+static void brcms_ops_stop(struct ieee80211_hw *hw)
+{
+ ieee80211_stop_queues(hw);
+}
+
+static int
+brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+ struct brcms_info *wl;
+ int err;
+
+ /* Just STA for now */
+ if (vif->type != NL80211_IFTYPE_AP &&
+ vif->type != NL80211_IFTYPE_MESH_POINT &&
+ vif->type != NL80211_IFTYPE_STATION &&
+ vif->type != NL80211_IFTYPE_WDS &&
+ vif->type != NL80211_IFTYPE_ADHOC) {
+ wiphy_err(hw->wiphy, "%s: Attempt to add type %d, only"
+ " STA for now\n", __func__, vif->type);
+ return -EOPNOTSUPP;
+ }
+
+ wl = HW_TO_WL(hw);
+ LOCK(wl);
+ err = brcms_up(wl);
+ UNLOCK(wl);
+
+ if (err != 0) {
+ wiphy_err(hw->wiphy, "%s: brcms_up() returned %d\n", __func__,
+ err);
+ }
+ return err;
+}
+
+static void
+brcms_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+ struct brcms_info *wl;
+
+ wl = HW_TO_WL(hw);
+
+ /* put driver in down state */
+ LOCK(wl);
+ brcms_down(wl);
+ UNLOCK(wl);
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+static int
+ieee_set_channel(struct ieee80211_hw *hw, struct ieee80211_channel *chan,
+ enum nl80211_channel_type type)
+{
+ struct brcms_info *wl = HW_TO_WL(hw);
+ int err = 0;
+
+ switch (type) {
+ case NL80211_CHAN_HT20:
+ case NL80211_CHAN_NO_HT:
+ err = brcms_c_set(wl->wlc, BRCM_SET_CHANNEL, chan->hw_value);
+ break;
+ case NL80211_CHAN_HT40MINUS:
+ case NL80211_CHAN_HT40PLUS:
+ wiphy_err(hw->wiphy,
+ "%s: Need to implement 40 Mhz Channels!\n", __func__);
+ err = 1;
+ break;
+ }
+
+ if (err)
+ return -EIO;
+ return err;
+}
+
+static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed)
+{
+ struct ieee80211_conf *conf = &hw->conf;
+ struct brcms_info *wl = HW_TO_WL(hw);
+ int err = 0;
+ int new_int;
+ struct wiphy *wiphy = hw->wiphy;
+
+ LOCK(wl);
+ if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
+ if (brcms_c_set_par(wl->wlc, IOV_BCN_LI_BCN,
+ conf->listen_interval) < 0) {
+ wiphy_err(wiphy, "%s: Error setting listen_interval\n",
+ __func__);
+ err = -EIO;
+ goto config_out;
+ }
+ brcms_c_get_par(wl->wlc, IOV_BCN_LI_BCN, &new_int);
+ }
+ if (changed & IEEE80211_CONF_CHANGE_MONITOR)
+ wiphy_err(wiphy, "%s: change monitor mode: %s (implement)\n",
+ __func__, conf->flags & IEEE80211_CONF_MONITOR ?
+ "true" : "false");
+ if (changed & IEEE80211_CONF_CHANGE_PS)
+ wiphy_err(wiphy, "%s: change power-save mode: %s (implement)\n",
+ __func__, conf->flags & IEEE80211_CONF_PS ?
+ "true" : "false");
+
+ if (changed & IEEE80211_CONF_CHANGE_POWER) {
+ if (brcms_c_set_par(wl->wlc, IOV_QTXPOWER,
+ conf->power_level * 4) < 0) {
+ wiphy_err(wiphy, "%s: Error setting power_level\n",
+ __func__);
+ err = -EIO;
+ goto config_out;
+ }
+ brcms_c_get_par(wl->wlc, IOV_QTXPOWER, &new_int);
+ if (new_int != (conf->power_level * 4))
+ wiphy_err(wiphy, "%s: Power level req != actual, %d %d"
+ "\n", __func__, conf->power_level * 4,
+ new_int);
+ }
+ if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+ err = ieee_set_channel(hw, conf->channel, conf->channel_type);
+ }
+ if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
+ if (brcms_c_set
+ (wl->wlc, BRCM_SET_SRL,
+ conf->short_frame_max_tx_count) < 0) {
+ wiphy_err(wiphy, "%s: Error setting srl\n", __func__);
+ err = -EIO;
+ goto config_out;
+ }
+ if (brcms_c_set(wl->wlc, BRCM_SET_LRL,
+ conf->long_frame_max_tx_count) < 0) {
+ wiphy_err(wiphy, "%s: Error setting lrl\n", __func__);
+ err = -EIO;
+ goto config_out;
+ }
+ }
+
+ config_out:
+ UNLOCK(wl);
+ return err;
+}
+
+static void
+brcms_ops_bss_info_changed(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *info, u32 changed)
+{
+ struct brcms_info *wl = HW_TO_WL(hw);
+ struct wiphy *wiphy = hw->wiphy;
+ int val;
+
+ if (changed & BSS_CHANGED_ASSOC) {
+ /* association status changed (associated/disassociated)
+ * also implies a change in the AID.
+ */
+ wiphy_err(wiphy, "%s: %s: %sassociated\n", KBUILD_MODNAME,
+ __func__, info->assoc ? "" : "dis");
+ LOCK(wl);
+ brcms_c_associate_upd(wl->wlc, info->assoc);
+ UNLOCK(wl);
+ }
+ if (changed & BSS_CHANGED_ERP_SLOT) {
+ /* slot timing changed */
+ if (info->use_short_slot)
+ val = 1;
+ else
+ val = 0;
+ LOCK(wl);
+ brcms_c_set(wl->wlc, BRCMS_SET_SHORTSLOT_OVERRIDE, val);
+ UNLOCK(wl);
+ }
+
+ if (changed & BSS_CHANGED_HT) {
+ /* 802.11n parameters changed */
+ u16 mode = info->ht_operation_mode;
+
+ LOCK(wl);
+ brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_CFG,
+ mode & IEEE80211_HT_OP_MODE_PROTECTION);
+ brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_NONGF,
+ mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
+ brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_OBSS,
+ mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT);
+ UNLOCK(wl);
+ }
+ if (changed & BSS_CHANGED_BASIC_RATES) {
+ struct ieee80211_supported_band *bi;
+ u32 br_mask, i;
+ u16 rate;
+ struct wl_rateset rs;
+ int error;
+
+ /* retrieve the current rates */
+ LOCK(wl);
+ error = brcms_c_ioctl(wl->wlc, BRCM_GET_CURR_RATESET,
+ &rs, sizeof(rs), NULL);
+ UNLOCK(wl);
+ if (error) {
+ wiphy_err(wiphy, "%s: retrieve rateset failed: %d\n",
+ __func__, error);
+ return;
+ }
+ br_mask = info->basic_rates;
+ bi = hw->wiphy->bands[brcms_c_get_curband(wl->wlc)];
+ for (i = 0; i < bi->n_bitrates; i++) {
+ /* convert to internal rate value */
+ rate = (bi->bitrates[i].bitrate << 1) / 10;
+
+ /* set/clear basic rate flag */
+ brcms_set_basic_rate(&rs, rate, br_mask & 1);
+ br_mask >>= 1;
+ }
+
+ /* update the rate set */
+ LOCK(wl);
+ brcms_c_ioctl(wl->wlc, BRCM_SET_RATESET, &rs, sizeof(rs), NULL);
+ UNLOCK(wl);
+ }
+ if (changed & BSS_CHANGED_BEACON_INT) {
+ /* Beacon interval changed */
+ LOCK(wl);
+ brcms_c_set(wl->wlc, BRCM_SET_BCNPRD, info->beacon_int);
+ UNLOCK(wl);
+ }
+ if (changed & BSS_CHANGED_BSSID) {
+ /* BSSID changed, for whatever reason (IBSS and managed mode) */
+ LOCK(wl);
+ brcms_c_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET,
+ info->bssid);
+ UNLOCK(wl);
+ }
+ if (changed & BSS_CHANGED_BEACON) {
+ /* Beacon data changed, retrieve new beacon (beaconing modes) */
+ wiphy_err(wiphy, "%s: beacon changed\n", __func__);
+ }
+ if (changed & BSS_CHANGED_BEACON_ENABLED) {
+ /* Beaconing should be enabled/disabled (beaconing modes) */
+ wiphy_err(wiphy, "%s: Beacon enabled: %s\n", __func__,
+ info->enable_beacon ? "true" : "false");
+ }
+ if (changed & BSS_CHANGED_CQM) {
+ /* Connection quality monitor config changed */
+ wiphy_err(wiphy, "%s: cqm change: threshold %d, hys %d "
+ " (implement)\n", __func__, info->cqm_rssi_thold,
+ info->cqm_rssi_hyst);
+ }
+ if (changed & BSS_CHANGED_IBSS) {
+ /* IBSS join status changed */
+ wiphy_err(wiphy, "%s: IBSS joined: %s (implement)\n", __func__,
+ info->ibss_joined ? "true" : "false");
+ }
+ if (changed & BSS_CHANGED_ARP_FILTER) {
+ /* Hardware ARP filter address list or state changed */
+ wiphy_err(wiphy, "%s: arp filtering: enabled %s, count %d"
+ " (implement)\n", __func__, info->arp_filter_enabled ?
+ "true" : "false", info->arp_addr_cnt);
+ }
+ if (changed & BSS_CHANGED_QOS) {
+ /*
+ * QoS for this association was enabled/disabled.
+ * Note that it is only ever disabled for station mode.
+ */
+ wiphy_err(wiphy, "%s: qos enabled: %s (implement)\n", __func__,
+ info->qos ? "true" : "false");
+ }
+ return;
+}
+
+static void
+brcms_ops_configure_filter(struct ieee80211_hw *hw,
+ unsigned int changed_flags,
+ unsigned int *total_flags, u64 multicast)
+{
+ struct brcms_info *wl = hw->priv;
+ struct wiphy *wiphy = hw->wiphy;
+
+ changed_flags &= MAC_FILTERS;
+ *total_flags &= MAC_FILTERS;
+ if (changed_flags & FIF_PROMISC_IN_BSS)
+ wiphy_err(wiphy, "FIF_PROMISC_IN_BSS\n");
+ if (changed_flags & FIF_ALLMULTI)
+ wiphy_err(wiphy, "FIF_ALLMULTI\n");
+ if (changed_flags & FIF_FCSFAIL)
+ wiphy_err(wiphy, "FIF_FCSFAIL\n");
+ if (changed_flags & FIF_PLCPFAIL)
+ wiphy_err(wiphy, "FIF_PLCPFAIL\n");
+ if (changed_flags & FIF_CONTROL)
+ wiphy_err(wiphy, "FIF_CONTROL\n");
+ if (changed_flags & FIF_OTHER_BSS)
+ wiphy_err(wiphy, "FIF_OTHER_BSS\n");
+ if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
+ LOCK(wl);
+ if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
+ wl->pub->mac80211_state |= MAC80211_PROMISC_BCNS;
+ brcms_c_mac_bcn_promisc_change(wl->wlc, 1);
+ } else {
+ brcms_c_mac_bcn_promisc_change(wl->wlc, 0);
+ wl->pub->mac80211_state &= ~MAC80211_PROMISC_BCNS;
+ }
+ UNLOCK(wl);
+ }
+ return;
+}
+
+static int
+brcms_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set)
+{
+ return 0;
+}
+
+static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw)
+{
+ struct brcms_info *wl = hw->priv;
+ LOCK(wl);
+ brcms_c_scan_start(wl->wlc);
+ UNLOCK(wl);
+ return;
+}
+
+static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw)
+{
+ struct brcms_info *wl = hw->priv;
+ LOCK(wl);
+ brcms_c_scan_stop(wl->wlc);
+ UNLOCK(wl);
+ return;
+}
+
+static void brcms_ops_set_tsf(struct ieee80211_hw *hw, u64 tsf)
+{
+ wiphy_err(hw->wiphy, "%s: Enter\n", __func__);
+ return;
+}
+
+static int
+brcms_ops_get_stats(struct ieee80211_hw *hw,
+ struct ieee80211_low_level_stats *stats)
+{
+ struct brcms_info *wl = hw->priv;
+ struct wl_cnt *cnt;
+
+ LOCK(wl);
+ cnt = wl->pub->_cnt;
+ stats->dot11ACKFailureCount = 0;
+ stats->dot11RTSFailureCount = 0;
+ stats->dot11FCSErrorCount = 0;
+ stats->dot11RTSSuccessCount = 0;
+ UNLOCK(wl);
+ return 0;
+}
+
+static void
+brcms_ops_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
+{
+ switch (cmd) {
+ default:
+ wiphy_err(hw->wiphy, "%s: Unknown cmd = %d\n", __func__,
+ cmd);
+ break;
+ }
+ return;
+}
+
+static int
+brcms_ops_conf_tx(struct ieee80211_hw *hw, u16 queue,
+ const struct ieee80211_tx_queue_params *params)
+{
+ struct brcms_info *wl = hw->priv;
+
+ LOCK(wl);
+ brcms_c_wme_setparams(wl->wlc, queue, params, true);
+ UNLOCK(wl);
+
+ return 0;
+}
+
+static u64 brcms_ops_get_tsf(struct ieee80211_hw *hw)
+{
+ wiphy_err(hw->wiphy, "%s: Enter\n", __func__);
+ return 0;
+}
+
+static int
+brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta)
+{
+ struct scb *scb;
+
+ int i;
+ struct brcms_info *wl = hw->priv;
+
+ /* Init the scb */
+ scb = (struct scb *)sta->drv_priv;
+ memset(scb, 0, sizeof(struct scb));
+ for (i = 0; i < NUMPRIO; i++)
+ scb->seqctl[i] = 0xFFFF;
+ scb->seqctl_nonqos = 0xFFFF;
+ scb->magic = SCB_MAGIC;
+
+ wl->pub->global_scb = scb;
+ wl->pub->global_ampdu = &(scb->scb_ampdu);
+ wl->pub->global_ampdu->scb = scb;
+ wl->pub->global_ampdu->max_pdu = 16;
+ brcmu_pktq_init(&scb->scb_ampdu.txq, AMPDU_MAX_SCB_TID,
+ AMPDU_MAX_SCB_TID * PKTQ_LEN_DEFAULT);
+
+ sta->ht_cap.ht_supported = true;
+ sta->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
+ sta->ht_cap.ampdu_density = AMPDU_DEF_MPDU_DENSITY;
+ sta->ht_cap.cap = IEEE80211_HT_CAP_GRN_FLD |
+ IEEE80211_HT_CAP_SGI_20 |
+ IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT;
+
+ /* minstrel_ht initiates addBA on our behalf by calling ieee80211_start_tx_ba_session() */
+ return 0;
+}
+
+static int
+brcms_ops_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta)
+{
+ return 0;
+}
+
+static int
+brcms_ops_ampdu_action(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ enum ieee80211_ampdu_mlme_action action,
+ struct ieee80211_sta *sta, u16 tid, u16 *ssn,
+ u8 buf_size)
+{
+ struct scb *scb = (struct scb *)sta->drv_priv;
+ struct brcms_info *wl = hw->priv;
+ int status;
+
+ if (WARN_ON(scb->magic != SCB_MAGIC))
+ return -EIDRM;
+ switch (action) {
+ case IEEE80211_AMPDU_RX_START:
+ break;
+ case IEEE80211_AMPDU_RX_STOP:
+ break;
+ case IEEE80211_AMPDU_TX_START:
+ LOCK(wl);
+ status = brcms_c_aggregatable(wl->wlc, tid);
+ UNLOCK(wl);
+ if (!status) {
+ wiphy_err(wl->wiphy, "START: tid %d is not agg\'able\n",
+ tid);
+ return -EINVAL;
+ }
+ /* Future improvement: Use the starting sequence number provided ... */
+ *ssn = 0;
+ ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ break;
+
+ case IEEE80211_AMPDU_TX_STOP:
+ LOCK(wl);
+ brcms_c_ampdu_flush(wl->wlc, sta, tid);
+ UNLOCK(wl);
+ ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ break;
+ case IEEE80211_AMPDU_TX_OPERATIONAL:
+ /*
+ * BA window size from ADDBA response ('buf_size') defines how
+ * many outstanding MPDUs are allowed for the BA stream by
+ * recipient and traffic class. 'ampdu_factor' gives maximum
+ * AMPDU size.
+ */
+ LOCK(wl);
+ brcms_c_ampdu_tx_operational(wl->wlc, tid, buf_size,
+ (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
+ sta->ht_cap.ampdu_factor)) - 1);
+ UNLOCK(wl);
+ /* Power save wakeup */
+ break;
+ default:
+ wiphy_err(wl->wiphy, "%s: Invalid command, ignoring\n",
+ __func__);
+ }
+
+ return 0;
+}
+
+static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw)
+{
+ struct brcms_info *wl = HW_TO_WL(hw);
+ bool blocked;
+
+ LOCK(wl);
+ blocked = brcms_c_check_radio_disabled(wl->wlc);
+ UNLOCK(wl);
+
+ wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
+}
+
+static void brcms_ops_flush(struct ieee80211_hw *hw, bool drop)
+{
+ struct brcms_info *wl = HW_TO_WL(hw);
+
+ no_printk("%s: drop = %s\n", __func__, drop ? "true" : "false");
+
+ /* wait for packet queue and dma fifos to run empty */
+ LOCK(wl);
+ brcms_c_wait_for_tx_completion(wl->wlc, drop);
+ UNLOCK(wl);
+}
+
+static const struct ieee80211_ops brcms_ops = {
+ .tx = brcms_ops_tx,
+ .start = brcms_ops_start,
+ .stop = brcms_ops_stop,
+ .add_interface = brcms_ops_add_interface,
+ .remove_interface = brcms_ops_remove_interface,
+ .config = brcms_ops_config,
+ .bss_info_changed = brcms_ops_bss_info_changed,
+ .configure_filter = brcms_ops_configure_filter,
+ .set_tim = brcms_ops_set_tim,
+ .sw_scan_start = brcms_ops_sw_scan_start,
+ .sw_scan_complete = brcms_ops_sw_scan_complete,
+ .set_tsf = brcms_ops_set_tsf,
+ .get_stats = brcms_ops_get_stats,
+ .sta_notify = brcms_ops_sta_notify,
+ .conf_tx = brcms_ops_conf_tx,
+ .get_tsf = brcms_ops_get_tsf,
+ .sta_add = brcms_ops_sta_add,
+ .sta_remove = brcms_ops_sta_remove,
+ .ampdu_action = brcms_ops_ampdu_action,
+ .rfkill_poll = brcms_ops_rfkill_poll,
+ .flush = brcms_ops_flush,
+};
+
+/*
+ * is called in brcms_pci_probe() context, therefore no locking required.
+ */
+static int brcms_set_hint(struct brcms_info *wl, char *abbrev)
+{
+ return regulatory_hint(wl->pub->ieee_hw->wiphy, abbrev);
+}
+
+/**
+ * attach to the WL device.
+ *
+ * Attach to the WL device identified by vendor and device parameters.
+ * regs is a host accessible memory address pointing to WL device registers.
+ *
+ * brcms_attach is not defined as static because in the case where no bus
+ * is defined, wl_attach will never be called, and thus, gcc will issue
+ * a warning that this function is defined but not used if we declare
+ * it as static.
+ *
+ *
+ * is called in brcms_pci_probe() context, therefore no locking required.
+ */
+static struct brcms_info *brcms_attach(u16 vendor, u16 device,
+ unsigned long regs,
+ uint bustype, void *btparam, uint irq)
+{
+ struct brcms_info *wl = NULL;
+ int unit, err;
+ unsigned long base_addr;
+ struct ieee80211_hw *hw;
+ u8 perm[ETH_ALEN];
+
+ unit = n_adapters_found;
+ err = 0;
+
+ if (unit < 0) {
+ return NULL;
+ }
+
+ /* allocate private info */
+ hw = pci_get_drvdata(btparam); /* btparam == pdev */
+ if (hw != NULL)
+ wl = hw->priv;
+ if (WARN_ON(hw == NULL) || WARN_ON(wl == NULL))
+ return NULL;
+ wl->wiphy = hw->wiphy;
+
+ atomic_set(&wl->callbacks, 0);
+
+ /* setup the bottom half handler */
+ tasklet_init(&wl->tasklet, brcms_dpc, (unsigned long) wl);
+
+
+
+ base_addr = regs;
+
+ if (bustype == PCI_BUS || bustype == RPC_BUS) {
+ /* Do nothing */
+ } else {
+ bustype = PCI_BUS;
+ BCMMSG(wl->wiphy, "force to PCI\n");
+ }
+ wl->bcm_bustype = bustype;
+
+ wl->regsva = ioremap_nocache(base_addr, PCI_BAR0_WINSZ);
+ if (wl->regsva == NULL) {
+ wiphy_err(wl->wiphy, "wl%d: ioremap() failed\n", unit);
+ goto fail;
+ }
+ spin_lock_init(&wl->lock);
+ spin_lock_init(&wl->isr_lock);
+
+ /* prepare ucode */
+ if (brcms_request_fw(wl, (struct pci_dev *)btparam) < 0) {
+ wiphy_err(wl->wiphy, "%s: Failed to find firmware usually in "
+ "%s\n", KBUILD_MODNAME, "/lib/firmware/brcm");
+ brcms_release_fw(wl);
+ brcms_remove((struct pci_dev *)btparam);
+ return NULL;
+ }
+
+ /* common load-time initialization */
+ wl->wlc = brcms_c_attach((void *)wl, vendor, device, unit, false,
+ wl->regsva, wl->bcm_bustype, btparam, &err);
+ brcms_release_fw(wl);
+ if (!wl->wlc) {
+ wiphy_err(wl->wiphy, "%s: attach() failed with code %d\n",
+ KBUILD_MODNAME, err);
+ goto fail;
+ }
+ wl->pub = brcms_c_pub(wl->wlc);
+
+ wl->pub->ieee_hw = hw;
+
+ if (brcms_c_set_par(wl->wlc, IOV_MPC, 0) < 0) {
+ wiphy_err(wl->wiphy, "wl%d: Error setting MPC variable to 0\n",
+ unit);
+ }
+
+ /* register our interrupt handler */
+ if (request_irq(irq, brcms_isr, IRQF_SHARED, KBUILD_MODNAME, wl)) {
+ wiphy_err(wl->wiphy, "wl%d: request_irq() failed\n", unit);
+ goto fail;
+ }
+ wl->irq = irq;
+
+ /* register module */
+ brcms_c_module_register(wl->pub, "linux", wl, wl_linux_watchdog, NULL);
+
+ if (ieee_hw_init(hw)) {
+ wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit,
+ __func__);
+ goto fail;
+ }
+
+ memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN);
+ if (WARN_ON(!is_valid_ether_addr(perm)))
+ goto fail;
+ SET_IEEE80211_PERM_ADDR(hw, perm);
+
+ err = ieee80211_register_hw(hw);
+ if (err) {
+ wiphy_err(wl->wiphy, "%s: ieee80211_register_hw failed, status"
+ "%d\n", __func__, err);
+ }
+
+ if (wl->pub->srom_ccode[0])
+ err = brcms_set_hint(wl, wl->pub->srom_ccode);
+ else
+ err = brcms_set_hint(wl, "US");
+ if (err) {
+ wiphy_err(wl->wiphy, "%s: regulatory_hint failed, status %d\n",
+ __func__, err);
+ }
+
+ n_adapters_found++;
+ return wl;
+
+fail:
+ brcms_free(wl);
+ return NULL;
+}
+
+
+
+#define CHAN2GHZ(channel, freqency, chflags) { \
+ .band = IEEE80211_BAND_2GHZ, \
+ .center_freq = (freqency), \
+ .hw_value = (channel), \
+ .flags = chflags, \
+ .max_antenna_gain = 0, \
+ .max_power = 19, \
+}
+
+static struct ieee80211_channel brcms_2ghz_chantable[] = {
+ CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN2GHZ(5, 2432, 0),
+ CHAN2GHZ(6, 2437, 0),
+ CHAN2GHZ(7, 2442, 0),
+ CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN2GHZ(12, 2467,
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN2GHZ(13, 2472,
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN2GHZ(14, 2484,
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
+};
+
+#define CHAN5GHZ(channel, chflags) { \
+ .band = IEEE80211_BAND_5GHZ, \
+ .center_freq = 5000 + 5*(channel), \
+ .hw_value = (channel), \
+ .flags = chflags, \
+ .max_antenna_gain = 0, \
+ .max_power = 21, \
+}
+
+static struct ieee80211_channel brcms_5ghz_nphy_chantable[] = {
+ /* UNII-1 */
+ CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS),
+ /* UNII-2 */
+ CHAN5GHZ(52,
+ IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(56,
+ IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN5GHZ(60,
+ IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(64,
+ IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
+ /* MID */
+ CHAN5GHZ(100,
+ IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(104,
+ IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN5GHZ(108,
+ IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(112,
+ IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN5GHZ(116,
+ IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(120,
+ IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN5GHZ(124,
+ IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(128,
+ IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN5GHZ(132,
+ IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(136,
+ IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN5GHZ(140,
+ IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS |
+ IEEE80211_CHAN_NO_HT40MINUS),
+ /* UNII-3 */
+ CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS),
+ CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS),
+ CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
+};
+
+#define RATE(rate100m, _flags) { \
+ .bitrate = (rate100m), \
+ .flags = (_flags), \
+ .hw_value = (rate100m / 5), \
+}
+
+static struct ieee80211_rate legacy_ratetable[] = {
+ RATE(10, 0),
+ RATE(20, IEEE80211_RATE_SHORT_PREAMBLE),
+ RATE(55, IEEE80211_RATE_SHORT_PREAMBLE),
+ RATE(110, IEEE80211_RATE_SHORT_PREAMBLE),
+ RATE(60, 0),
+ RATE(90, 0),
+ RATE(120, 0),
+ RATE(180, 0),
+ RATE(240, 0),
+ RATE(360, 0),
+ RATE(480, 0),
+ RATE(540, 0),
+};
+
+static struct ieee80211_supported_band brcms_band_2GHz_nphy = {
+ .band = IEEE80211_BAND_2GHZ,
+ .channels = brcms_2ghz_chantable,
+ .n_channels = ARRAY_SIZE(brcms_2ghz_chantable),
+ .bitrates = legacy_ratetable,
+ .n_bitrates = ARRAY_SIZE(legacy_ratetable),
+ .ht_cap = {
+ /* from include/linux/ieee80211.h */
+ .cap = IEEE80211_HT_CAP_GRN_FLD |
+ IEEE80211_HT_CAP_SGI_20 |
+ IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT,
+ .ht_supported = true,
+ .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
+ .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
+ .mcs = {
+ /* placeholders for now */
+ .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
+ .rx_highest = 500,
+ .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
+ }
+};
+
+static struct ieee80211_supported_band brcms_band_5GHz_nphy = {
+ .band = IEEE80211_BAND_5GHZ,
+ .channels = brcms_5ghz_nphy_chantable,
+ .n_channels = ARRAY_SIZE(brcms_5ghz_nphy_chantable),
+ .bitrates = legacy_ratetable + 4,
+ .n_bitrates = ARRAY_SIZE(legacy_ratetable) - 4,
+ .ht_cap = {
+ /* use IEEE80211_HT_CAP_* from include/linux/ieee80211.h */
+ .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_40MHZ_INTOLERANT, /* No 40 mhz yet */
+ .ht_supported = true,
+ .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
+ .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
+ .mcs = {
+ /* placeholders for now */
+ .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
+ .rx_highest = 500,
+ .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
+ }
+};
+
+/*
+ * is called in brcms_pci_probe() context, therefore no locking required.
+ */
+static int ieee_hw_rate_init(struct ieee80211_hw *hw)
+{
+ struct brcms_info *wl = HW_TO_WL(hw);
+ int has_5g;
+ char phy_list[4];
+
+ has_5g = 0;
+
+ hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
+ hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
+
+ if (brcms_c_get(wl->wlc, BRCM_GET_PHYLIST, (int *)&phy_list) < 0)
+ wiphy_err(hw->wiphy, "Phy list failed\n");
+
+ if (phy_list[0] == 'n' || phy_list[0] == 'c') {
+ if (phy_list[0] == 'c') {
+ /* Single stream */
+ brcms_band_2GHz_nphy.ht_cap.mcs.rx_mask[1] = 0;
+ brcms_band_2GHz_nphy.ht_cap.mcs.rx_highest = 72;
+ }
+ hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &brcms_band_2GHz_nphy;
+ } else {
+ return -EPERM;
+ }
+
+ /* Assume all bands use the same phy. True for 11n devices. */
+ if (NBANDS_PUB(wl->pub) > 1) {
+ has_5g++;
+ if (phy_list[0] == 'n' || phy_list[0] == 'c') {
+ hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
+ &brcms_band_5GHz_nphy;
+ } else {
+ return -EPERM;
+ }
+ }
+ return 0;
+}
+
+/*
+ * is called in brcms_pci_probe() context, therefore no locking required.
+ */
+static int ieee_hw_init(struct ieee80211_hw *hw)
+{
+ hw->flags = IEEE80211_HW_SIGNAL_DBM
+ /* | IEEE80211_HW_CONNECTION_MONITOR What is this? */
+ | IEEE80211_HW_REPORTS_TX_ACK_STATUS
+ | IEEE80211_HW_AMPDU_AGGREGATION;
+
+ hw->extra_tx_headroom = brcms_c_get_header_len();
+ hw->queues = N_TX_QUEUES;
+ hw->max_rates = 2; /* Primary rate and 1 fallback rate */
+
+ hw->channel_change_time = 7 * 1000; /* channel change time is dependent on chip and band */
+ hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
+
+ hw->rate_control_algorithm = "minstrel_ht";
+
+ hw->sta_data_size = sizeof(struct scb);
+ return ieee_hw_rate_init(hw);
+}
+
+/**
+ * determines if a device is a WL device, and if so, attaches it.
+ *
+ * This function determines if a device pointed to by pdev is a WL device,
+ * and if so, performs a brcms_attach() on it.
+ *
+ * Perimeter lock is initialized in the course of this function.
+ */
+static int __devinit
+brcms_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ int rc;
+ struct brcms_info *wl;
+ struct ieee80211_hw *hw;
+ u32 val;
+
+ dev_info(&pdev->dev, "bus %d slot %d func %d irq %d\n",
+ pdev->bus->number, PCI_SLOT(pdev->devfn),
+ PCI_FUNC(pdev->devfn), pdev->irq);
+
+ if ((pdev->vendor != PCI_VENDOR_ID_BROADCOM) ||
+ ((pdev->device != 0x0576) &&
+ ((pdev->device & 0xff00) != 0x4300) &&
+ ((pdev->device & 0xff00) != 0x4700) &&
+ ((pdev->device < 43000) || (pdev->device > 43999))))
+ return -ENODEV;
+
+ rc = pci_enable_device(pdev);
+ if (rc) {
+ pr_err("%s: Cannot enable device %d-%d_%d\n",
+ __func__, pdev->bus->number, PCI_SLOT(pdev->devfn),
+ PCI_FUNC(pdev->devfn));
+ return -ENODEV;
+ }
+ pci_set_master(pdev);
+
+ pci_read_config_dword(pdev, 0x40, &val);
+ if ((val & 0x0000ff00) != 0)
+ pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
+
+ hw = ieee80211_alloc_hw(sizeof(struct brcms_info), &brcms_ops);
+ if (!hw) {
+ pr_err("%s: ieee80211_alloc_hw failed\n", __func__);
+ return -ENOMEM;
+ }
+
+ SET_IEEE80211_DEV(hw, &pdev->dev);
+
+ pci_set_drvdata(pdev, hw);
+
+ memset(hw->priv, 0, sizeof(*wl));
+
+ wl = brcms_attach(pdev->vendor, pdev->device,
+ pci_resource_start(pdev, 0), PCI_BUS, pdev,
+ pdev->irq);
+
+ if (!wl) {
+ pr_err("%s: %s: brcms_attach failed!\n", KBUILD_MODNAME,
+ __func__);
+ return -ENODEV;
+ }
+ return 0;
+}
+
+static int brcms_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct brcms_info *wl;
+ struct ieee80211_hw *hw;
+
+ hw = pci_get_drvdata(pdev);
+ wl = HW_TO_WL(hw);
+ if (!wl) {
+ wiphy_err(wl->wiphy,
+ "brcms_suspend: pci_get_drvdata failed\n");
+ return -ENODEV;
+ }
+
+ /* only need to flag hw is down for proper resume */
+ LOCK(wl);
+ wl->pub->hw_up = false;
+ UNLOCK(wl);
+
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
+ return pci_set_power_state(pdev, PCI_D3hot);
+}
+
+static int brcms_resume(struct pci_dev *pdev)
+{
+ struct brcms_info *wl;
+ struct ieee80211_hw *hw;
+ int err = 0;
+ u32 val;
+
+ hw = pci_get_drvdata(pdev);
+ wl = HW_TO_WL(hw);
+ if (!wl) {
+ wiphy_err(wl->wiphy,
+ "wl: brcms_resume: pci_get_drvdata failed\n");
+ return -ENODEV;
+ }
+
+ err = pci_set_power_state(pdev, PCI_D0);
+ if (err)
+ return err;
+
+ pci_restore_state(pdev);
+
+ err = pci_enable_device(pdev);
+ if (err)
+ return err;
+
+ pci_set_master(pdev);
+
+ pci_read_config_dword(pdev, 0x40, &val);
+ if ((val & 0x0000ff00) != 0)
+ pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
+
+ /*
+ * done. driver will be put in up state
+ * in brcms_ops_add_interface() call.
+ */
+ return err;
+}
+
+/*
+* called from both kernel as from this kernel module.
+* precondition: perimeter lock is not acquired.
+*/
+static void brcms_remove(struct pci_dev *pdev)
+{
+ struct brcms_info *wl;
+ struct ieee80211_hw *hw;
+ int status;
+
+ hw = pci_get_drvdata(pdev);
+ wl = HW_TO_WL(hw);
+ if (!wl) {
+ pr_err("wl: brcms_remove: pci_get_drvdata failed\n");
+ return;
+ }
+
+ LOCK(wl);
+ status = brcms_c_chipmatch(pdev->vendor, pdev->device);
+ UNLOCK(wl);
+ if (!status) {
+ wiphy_err(wl->wiphy, "wl: brcms_remove: chipmatch "
+ "failed\n");
+ return;
+ }
+ if (wl->wlc) {
+ wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
+ wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
+ ieee80211_unregister_hw(hw);
+ LOCK(wl);
+ brcms_down(wl);
+ UNLOCK(wl);
+ }
+ pci_disable_device(pdev);
+
+ brcms_free(wl);
+
+ pci_set_drvdata(pdev, NULL);
+ ieee80211_free_hw(hw);
+}
+
+static struct pci_driver brcms_pci_driver = {
+ .name = KBUILD_MODNAME,
+ .probe = brcms_pci_probe,
+ .suspend = brcms_suspend,
+ .resume = brcms_resume,
+ .remove = __devexit_p(brcms_remove),
+ .id_table = brcms_pci_id_table,
+};
+
+/**
+ * This is the main entry point for the WL driver.
+ *
+ * This function determines if a device pointed to by pdev is a WL device,
+ * and if so, performs a brcms_attach() on it.
+ *
+ */
+static int __init brcms_module_init(void)
+{
+ int error = -ENODEV;
+
+#ifdef BCMDBG
+ if (msglevel != 0xdeadbeef)
+ brcm_msg_level = msglevel;
+ if (phymsglevel != 0xdeadbeef)
+ phyhal_msg_level = phymsglevel;
+#endif /* BCMDBG */
+
+ error = pci_register_driver(&brcms_pci_driver);
+ if (!error)
+ return 0;
+
+
+
+ return error;
+}
+
+/**
+ * This function unloads the WL driver from the system.
+ *
+ * This function unconditionally unloads the WL driver module from the
+ * system.
+ *
+ */
+static void __exit brcms_module_exit(void)
+{
+ pci_unregister_driver(&brcms_pci_driver);
+
+}
+
+module_init(brcms_module_init);
+module_exit(brcms_module_exit);
+
+/**
+ * This function frees the WL per-device resources.
+ *
+ * This function frees resources owned by the WL device pointed to
+ * by the wl parameter.
+ *
+ * precondition: can both be called locked and unlocked
+ *
+ */
+static void brcms_free(struct brcms_info *wl)
+{
+ struct brcms_timer *t, *next;
+
+ /* free ucode data */
+ if (wl->fw.fw_cnt)
+ brcms_ucode_data_free();
+ if (wl->irq)
+ free_irq(wl->irq, wl);
+
+ /* kill dpc */
+ tasklet_kill(&wl->tasklet);
+
+ if (wl->pub) {
+ brcms_c_module_unregister(wl->pub, "linux", wl);
+ }
+
+ /* free common resources */
+ if (wl->wlc) {
+ brcms_c_detach(wl->wlc);
+ wl->wlc = NULL;
+ wl->pub = NULL;
+ }
+
+ /* virtual interface deletion is deferred so we cannot spinwait */
+
+ /* wait for all pending callbacks to complete */
+ while (atomic_read(&wl->callbacks) > 0)
+ schedule();
+
+ /* free timers */
+ for (t = wl->timers; t; t = next) {
+ next = t->next;
+#ifdef BCMDBG
+ kfree(t->name);
+#endif
+ kfree(t);
+ }
+
+ /*
+ * unregister_netdev() calls get_stats() which may read chip registers
+ * so we cannot unmap the chip registers until after calling unregister_netdev() .
+ */
+ if (wl->regsva && wl->bcm_bustype != SDIO_BUS &&
+ wl->bcm_bustype != JTAG_BUS) {
+ iounmap((void *)wl->regsva);
+ }
+ wl->regsva = NULL;
+}
+
+/* flags the given rate in rateset as requested */
+static void brcms_set_basic_rate(struct wl_rateset *rs, u16 rate, bool is_br)
+{
+ u32 i;
+
+ for (i = 0; i < rs->count; i++) {
+ if (rate != (rs->rates[i] & 0x7f))
+ continue;
+
+ if (is_br)
+ rs->rates[i] |= BRCMS_RATE_FLAG;
+ else
+ rs->rates[i] &= BRCMS_RATE_MASK;
+ return;
+ }
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif,
+ bool state, int prio)
+{
+ wiphy_err(wl->wiphy, "Shouldn't be here %s\n", __func__);
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+void brcms_init(struct brcms_info *wl)
+{
+ BCMMSG(WL_TO_HW(wl)->wiphy, "wl%d\n", wl->pub->unit);
+ brcms_reset(wl);
+
+ brcms_c_init(wl->wlc);
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+uint brcms_reset(struct brcms_info *wl)
+{
+ BCMMSG(WL_TO_HW(wl)->wiphy, "wl%d\n", wl->pub->unit);
+ brcms_c_reset(wl->wlc);
+
+ /* dpc will not be rescheduled */
+ wl->resched = 0;
+
+ return 0;
+}
+
+/*
+ * These are interrupt on/off entry points. Disable interrupts
+ * during interrupt state transition.
+ */
+void brcms_intrson(struct brcms_info *wl)
+{
+ unsigned long flags;
+
+ INT_LOCK(wl, flags);
+ brcms_c_intrson(wl->wlc);
+ INT_UNLOCK(wl, flags);
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+bool wl_alloc_dma_resources(struct brcms_info *wl, uint addrwidth)
+{
+ return true;
+}
+
+u32 brcms_intrsoff(struct brcms_info *wl)
+{
+ unsigned long flags;
+ u32 status;
+
+ INT_LOCK(wl, flags);
+ status = brcms_c_intrsoff(wl->wlc);
+ INT_UNLOCK(wl, flags);
+ return status;
+}
+
+void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask)
+{
+ unsigned long flags;
+
+ INT_LOCK(wl, flags);
+ brcms_c_intrsrestore(wl->wlc, macintmask);
+ INT_UNLOCK(wl, flags);
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+int brcms_up(struct brcms_info *wl)
+{
+ int error = 0;
+
+ if (wl->pub->up)
+ return 0;
+
+ error = brcms_c_up(wl->wlc);
+
+ return error;
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+void brcms_down(struct brcms_info *wl)
+{
+ uint callbacks, ret_val = 0;
+
+ /* call common down function */
+ ret_val = brcms_c_down(wl->wlc);
+ callbacks = atomic_read(&wl->callbacks) - ret_val;
+
+ /* wait for down callbacks to complete */
+ UNLOCK(wl);
+
+ /* For HIGH_only driver, it's important to actually schedule other work,
+ * not just spin wait since everything runs at schedule level
+ */
+ SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000);
+
+ LOCK(wl);
+}
+
+static irqreturn_t brcms_isr(int irq, void *dev_id)
+{
+ struct brcms_info *wl;
+ bool ours, wantdpc;
+ unsigned long flags;
+
+ wl = (struct brcms_info *) dev_id;
+
+ ISR_LOCK(wl, flags);
+
+ /* call common first level interrupt handler */
+ ours = brcms_c_isr(wl->wlc, &wantdpc);
+ if (ours) {
+ /* if more to do... */
+ if (wantdpc) {
+
+ /* ...and call the second level interrupt handler */
+ /* schedule dpc */
+ tasklet_schedule(&wl->tasklet);
+ }
+ }
+
+ ISR_UNLOCK(wl, flags);
+
+ return IRQ_RETVAL(ours);
+}
+
+static void brcms_dpc(unsigned long data)
+{
+ struct brcms_info *wl;
+
+ wl = (struct brcms_info *) data;
+
+ LOCK(wl);
+
+ /* call the common second level interrupt handler */
+ if (wl->pub->up) {
+ if (wl->resched) {
+ unsigned long flags;
+
+ INT_LOCK(wl, flags);
+ brcms_c_intrsupd(wl->wlc);
+ INT_UNLOCK(wl, flags);
+ }
+
+ wl->resched = brcms_c_dpc(wl->wlc, true);
+ }
+
+ /* brcms_c_dpc() may bring the driver down */
+ if (!wl->pub->up)
+ goto done;
+
+ /* re-schedule dpc */
+ if (wl->resched)
+ tasklet_schedule(&wl->tasklet);
+ else {
+ /* re-enable interrupts */
+ brcms_intrson(wl);
+ }
+
+ done:
+ UNLOCK(wl);
+}
+
+/*
+ * is called by the kernel from software irq context
+ */
+static void brcms_timer(unsigned long data)
+{
+ _brcms_timer((struct brcms_timer *) data);
+}
+
+/*
+* precondition: perimeter lock is not acquired
+ */
+static void _brcms_timer(struct brcms_timer *t)
+{
+ LOCK(t->wl);
+
+ if (t->set) {
+ if (t->periodic) {
+ t->timer.expires = jiffies + t->ms * HZ / 1000;
+ atomic_inc(&t->wl->callbacks);
+ add_timer(&t->timer);
+ t->set = true;
+ } else
+ t->set = false;
+
+ t->fn(t->arg);
+ }
+
+ atomic_dec(&t->wl->callbacks);
+
+ UNLOCK(t->wl);
+}
+
+/*
+ * Adds a timer to the list. Caller supplies a timer function.
+ * Is called from wlc.
+ *
+ * precondition: perimeter lock has been acquired
+ */
+struct brcms_timer *brcms_init_timer(struct brcms_info *wl,
+ void (*fn) (void *arg),
+ void *arg, const char *name)
+{
+ struct brcms_timer *t;
+
+ t = kzalloc(sizeof(struct brcms_timer), GFP_ATOMIC);
+ if (!t) {
+ wiphy_err(wl->wiphy, "wl%d: brcms_init_timer: out of memory\n",
+ wl->pub->unit);
+ return 0;
+ }
+
+ init_timer(&t->timer);
+ t->timer.data = (unsigned long) t;
+ t->timer.function = brcms_timer;
+ t->wl = wl;
+ t->fn = fn;
+ t->arg = arg;
+ t->next = wl->timers;
+ wl->timers = t;
+
+#ifdef BCMDBG
+ t->name = kmalloc(strlen(name) + 1, GFP_ATOMIC);
+ if (t->name)
+ strcpy(t->name, name);
+#endif
+
+ return t;
+}
+
+/* BMAC_NOTE: Add timer adds only the kernel timer since it's going to be more accurate
+ * as well as it's easier to make it periodic
+ *
+ * precondition: perimeter lock has been acquired
+ */
+void brcms_add_timer(struct brcms_info *wl, struct brcms_timer *t, uint ms,
+ int periodic)
+{
+#ifdef BCMDBG
+ if (t->set) {
+ wiphy_err(wl->wiphy, "%s: Already set. Name: %s, per %d\n",
+ __func__, t->name, periodic);
+ }
+#endif
+ t->ms = ms;
+ t->periodic = (bool) periodic;
+ t->set = true;
+ t->timer.expires = jiffies + ms * HZ / 1000;
+
+ atomic_inc(&wl->callbacks);
+ add_timer(&t->timer);
+}
+
+/*
+ * return true if timer successfully deleted, false if still pending
+ *
+ * precondition: perimeter lock has been acquired
+ */
+bool brcms_del_timer(struct brcms_info *wl, struct brcms_timer *t)
+{
+ if (t->set) {
+ t->set = false;
+ if (!del_timer(&t->timer)) {
+ return false;
+ }
+ atomic_dec(&wl->callbacks);
+ }
+
+ return true;
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+void brcms_free_timer(struct brcms_info *wl, struct brcms_timer *t)
+{
+ struct brcms_timer *tmp;
+
+ /* delete the timer in case it is active */
+ brcms_del_timer(wl, t);
+
+ if (wl->timers == t) {
+ wl->timers = wl->timers->next;
+#ifdef BCMDBG
+ kfree(t->name);
+#endif
+ kfree(t);
+ return;
+
+ }
+
+ tmp = wl->timers;
+ while (tmp) {
+ if (tmp->next == t) {
+ tmp->next = t->next;
+#ifdef BCMDBG
+ kfree(t->name);
+#endif
+ kfree(t);
+ return;
+ }
+ tmp = tmp->next;
+ }
+
+}
+
+/*
+ * runs in software irq context
+ *
+ * precondition: perimeter lock is not acquired
+ */
+static int wl_linux_watchdog(void *ctx)
+{
+ return 0;
+}
+
+struct firmware_hdr {
+ u32 offset;
+ u32 len;
+ u32 idx;
+};
+
+char *brcms_firmwares[MAX_FW_IMAGES] = {
+ "brcm/bcm43xx",
+ NULL
+};
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx)
+{
+ int i, entry;
+ const u8 *pdata;
+ struct firmware_hdr *hdr;
+ for (i = 0; i < wl->fw.fw_cnt; i++) {
+ hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
+ for (entry = 0; entry < wl->fw.hdr_num_entries[i];
+ entry++, hdr++) {
+ if (hdr->idx == idx) {
+ pdata = wl->fw.fw_bin[i]->data + hdr->offset;
+ *pbuf = kmalloc(hdr->len, GFP_ATOMIC);
+ if (*pbuf == NULL) {
+ wiphy_err(wl->wiphy, "fail to alloc %d"
+ " bytes\n", hdr->len);
+ goto fail;
+ }
+ memcpy(*pbuf, pdata, hdr->len);
+ return 0;
+ }
+ }
+ }
+ wiphy_err(wl->wiphy, "ERROR: ucode buf tag:%d can not be found!\n",
+ idx);
+ *pbuf = NULL;
+fail:
+ return -ENODATA;
+}
+
+/*
+ * Precondition: Since this function is called in brcms_pci_probe() context,
+ * no locking is required.
+ */
+int brcms_ucode_init_uint(struct brcms_info *wl, u32 *data, u32 idx)
+{
+ int i, entry;
+ const u8 *pdata;
+ struct firmware_hdr *hdr;
+ for (i = 0; i < wl->fw.fw_cnt; i++) {
+ hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
+ for (entry = 0; entry < wl->fw.hdr_num_entries[i];
+ entry++, hdr++) {
+ if (hdr->idx == idx) {
+ pdata = wl->fw.fw_bin[i]->data + hdr->offset;
+ if (hdr->len != 4) {
+ wiphy_err(wl->wiphy,
+ "ERROR: fw hdr len\n");
+ return -ENOMSG;
+ }
+ *data = *((u32 *) pdata);
+ return 0;
+ }
+ }
+ }
+ wiphy_err(wl->wiphy, "ERROR: ucode tag:%d can not be found!\n", idx);
+ return -ENOMSG;
+}
+
+/*
+ * Precondition: Since this function is called in brcms_pci_probe() context,
+ * no locking is required.
+ */
+static int brcms_request_fw(struct brcms_info *wl, struct pci_dev *pdev)
+{
+ int status;
+ struct device *device = &pdev->dev;
+ char fw_name[100];
+ int i;
+
+ memset((void *)&wl->fw, 0, sizeof(struct brcms_firmware));
+ for (i = 0; i < MAX_FW_IMAGES; i++) {
+ if (brcms_firmwares[i] == NULL)
+ break;
+ sprintf(fw_name, "%s-%d.fw", brcms_firmwares[i],
+ UCODE_LOADER_API_VER);
+ status = request_firmware(&wl->fw.fw_bin[i], fw_name, device);
+ if (status) {
+ wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
+ KBUILD_MODNAME, fw_name);
+ return status;
+ }
+ sprintf(fw_name, "%s_hdr-%d.fw", brcms_firmwares[i],
+ UCODE_LOADER_API_VER);
+ status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device);
+ if (status) {
+ wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
+ KBUILD_MODNAME, fw_name);
+ return status;
+ }
+ wl->fw.hdr_num_entries[i] =
+ wl->fw.fw_hdr[i]->size / (sizeof(struct firmware_hdr));
+ }
+ wl->fw.fw_cnt = i;
+ return brcms_ucode_data_init(wl);
+}
+
+/*
+ * precondition: can both be called locked and unlocked
+ */
+void brcms_ucode_free_buf(void *p)
+{
+ kfree(p);
+}
+
+/*
+ * Precondition: Since this function is called in brcms_pci_probe() context,
+ * no locking is required.
+ */
+static void brcms_release_fw(struct brcms_info *wl)
+{
+ int i;
+ for (i = 0; i < MAX_FW_IMAGES; i++) {
+ release_firmware(wl->fw.fw_bin[i]);
+ release_firmware(wl->fw.fw_hdr[i]);
+ }
+}
+
+
+/*
+ * checks validity of all firmware images loaded from user space
+ *
+ * Precondition: Since this function is called in brcms_pci_probe() context,
+ * no locking is required.
+ */
+int brcms_check_firmwares(struct brcms_info *wl)
+{
+ int i;
+ int entry;
+ int rc = 0;
+ const struct firmware *fw;
+ const struct firmware *fw_hdr;
+ struct firmware_hdr *ucode_hdr;
+ for (i = 0; i < MAX_FW_IMAGES && rc == 0; i++) {
+ fw = wl->fw.fw_bin[i];
+ fw_hdr = wl->fw.fw_hdr[i];
+ if (fw == NULL && fw_hdr == NULL) {
+ break;
+ } else if (fw == NULL || fw_hdr == NULL) {
+ wiphy_err(wl->wiphy, "%s: invalid bin/hdr fw\n",
+ __func__);
+ rc = -EBADF;
+ } else if (fw_hdr->size % sizeof(struct firmware_hdr)) {
+ wiphy_err(wl->wiphy, "%s: non integral fw hdr file "
+ "size %zu/%zu\n", __func__, fw_hdr->size,
+ sizeof(struct firmware_hdr));
+ rc = -EBADF;
+ } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
+ wiphy_err(wl->wiphy, "%s: out of bounds fw file size "
+ "%zu\n", __func__, fw->size);
+ rc = -EBADF;
+ } else {
+ /* check if ucode section overruns firmware image */
+ ucode_hdr = (struct firmware_hdr *)fw_hdr->data;
+ for (entry = 0; entry < wl->fw.hdr_num_entries[i] &&
+ !rc; entry++, ucode_hdr++) {
+ if (ucode_hdr->offset + ucode_hdr->len >
+ fw->size) {
+ wiphy_err(wl->wiphy,
+ "%s: conflicting bin/hdr\n",
+ __func__);
+ rc = -EBADF;
+ }
+ }
+ }
+ }
+ if (rc == 0 && wl->fw.fw_cnt != i) {
+ wiphy_err(wl->wiphy, "%s: invalid fw_cnt=%d\n", __func__,
+ wl->fw.fw_cnt);
+ rc = -EBADF;
+ }
+ return rc;
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+bool brcms_rfkill_set_hw_state(struct brcms_info *wl)
+{
+ bool blocked = brcms_c_check_radio_disabled(wl->wlc);
+
+ UNLOCK(wl);
+ wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
+ if (blocked)
+ wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy);
+ LOCK(wl);
+ return blocked;
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+void brcms_msleep(struct brcms_info *wl, uint ms)
+{
+ UNLOCK(wl);
+ msleep(ms);
+ LOCK(wl);
+}
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / commitdiff