brcm80211: move under broadcom vendor directory

Part of reorganising wireless drivers directory and Kconfig. Note that I had to
edit Makefiles from subdirectories to use the new location.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

1 files changed, 1700 insertions, 0 deletions

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
new file mode 100644
index 000000000000..bec2dc1ca2e4
--- /dev/null
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
@@ -0,0 +1,1700 @@
+/*
+ * Copyright (c) 2010 Broadcom Corporation
+ * Copyright (c) 2013 Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * 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__
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/etherdevice.h>
+#include <linux/sched.h>
+#include <linux/firmware.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/bcma/bcma.h>
+#include <net/mac80211.h>
+#include <defs.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"
+#include "main.h"
+#include "debug.h"
+#include "led.h"
+
+#define N_TX_QUEUES	4 /* #tx queues on mac80211<->driver interface */
+#define BRCMS_FLUSH_TIMEOUT	500 /* msec */
+
+/* Flags we support */
+#define MAC_FILTERS (FIF_ALLMULTI | \
+	FIF_FCSFAIL | \
+	FIF_CONTROL | \
+	FIF_OTHER_BSS | \
+	FIF_BCN_PRBRESP_PROMISC | \
+	FIF_PSPOLL)
+
+#define CHAN2GHZ(channel, freqency, chflags)  { \
+	.band = IEEE80211_BAND_2GHZ, \
+	.center_freq = (freqency), \
+	.hw_value = (channel), \
+	.flags = chflags, \
+	.max_antenna_gain = 0, \
+	.max_power = 19, \
+}
+
+#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, \
+}
+
+#define RATE(rate100m, _flags) { \
+	.bitrate = (rate100m), \
+	.flags = (_flags), \
+	.hw_value = (rate100m / 5), \
+}
+
+struct firmware_hdr {
+	__le32 offset;
+	__le32 len;
+	__le32 idx;
+};
+
+static const char * const brcms_firmwares[MAX_FW_IMAGES] = {
+	"brcm/bcm43xx",
+	NULL
+};
+
+static int n_adapters_found;
+
+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");
+/* This needs to be adjusted when brcms_firmwares changes */
+MODULE_FIRMWARE("brcm/bcm43xx-0.fw");
+MODULE_FIRMWARE("brcm/bcm43xx_hdr-0.fw");
+
+/* recognized BCMA Core IDs */
+static struct bcma_device_id brcms_coreid_table[] = {
+	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 17, BCMA_ANY_CLASS),
+	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 23, BCMA_ANY_CLASS),
+	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 24, BCMA_ANY_CLASS),
+	{},
+};
+MODULE_DEVICE_TABLE(bcma, brcms_coreid_table);
+
+#if defined(CONFIG_BRCMDBG)
+/*
+ * Module parameter for setting the debug message level. Available
+ * flags are specified by the BRCM_DL_* macros in
+ * drivers/net/wireless/brcm80211/include/defs.h.
+ */
+module_param_named(debug, brcm_msg_level, uint, S_IRUGO | S_IWUSR);
+#endif
+
+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_NO_IR |
+		 IEEE80211_CHAN_NO_HT40PLUS),
+	CHAN2GHZ(13, 2472,
+		 IEEE80211_CHAN_NO_IR |
+		 IEEE80211_CHAN_NO_HT40PLUS),
+	CHAN2GHZ(14, 2484,
+		 IEEE80211_CHAN_NO_IR |
+		 IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS |
+		 IEEE80211_CHAN_NO_OFDM)
+};
+
+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_IR | IEEE80211_CHAN_NO_HT40MINUS),
+	CHAN5GHZ(56,
+		 IEEE80211_CHAN_RADAR |
+		 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
+	CHAN5GHZ(60,
+		 IEEE80211_CHAN_RADAR |
+		 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
+	CHAN5GHZ(64,
+		 IEEE80211_CHAN_RADAR |
+		 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
+	/* MID */
+	CHAN5GHZ(100,
+		 IEEE80211_CHAN_RADAR |
+		 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
+	CHAN5GHZ(104,
+		 IEEE80211_CHAN_RADAR |
+		 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
+	CHAN5GHZ(108,
+		 IEEE80211_CHAN_RADAR |
+		 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
+	CHAN5GHZ(112,
+		 IEEE80211_CHAN_RADAR |
+		 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
+	CHAN5GHZ(116,
+		 IEEE80211_CHAN_RADAR |
+		 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
+	CHAN5GHZ(120,
+		 IEEE80211_CHAN_RADAR |
+		 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
+	CHAN5GHZ(124,
+		 IEEE80211_CHAN_RADAR |
+		 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
+	CHAN5GHZ(128,
+		 IEEE80211_CHAN_RADAR |
+		 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
+	CHAN5GHZ(132,
+		 IEEE80211_CHAN_RADAR |
+		 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40MINUS),
+	CHAN5GHZ(136,
+		 IEEE80211_CHAN_RADAR |
+		 IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_HT40PLUS),
+	CHAN5GHZ(140,
+		 IEEE80211_CHAN_RADAR |
+		 IEEE80211_CHAN_NO_IR | 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)
+};
+
+/*
+ * The rate table is used for both 2.4G and 5G rates. The
+ * latter being a subset as it does not support CCK rates.
+ */
+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 const struct ieee80211_supported_band brcms_band_2GHz_nphy_template = {
+	.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,
+		   .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 = cpu_to_le16(500),
+			   .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
+		   }
+};
+
+static const struct ieee80211_supported_band brcms_band_5GHz_nphy_template = {
+	.band = IEEE80211_BAND_5GHZ,
+	.channels = brcms_5ghz_nphy_chantable,
+	.n_channels = ARRAY_SIZE(brcms_5ghz_nphy_chantable),
+	.bitrates = legacy_ratetable + BRCMS_LEGACY_5G_RATE_OFFSET,
+	.n_bitrates = ARRAY_SIZE(legacy_ratetable) -
+			BRCMS_LEGACY_5G_RATE_OFFSET,
+	.ht_cap = {
+		   .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 |
+			  IEEE80211_HT_CAP_SGI_40,
+		   .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 = cpu_to_le16(500),
+			   .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
+		   }
+};
+
+/* flags the given rate in rateset as requested */
+static void brcms_set_basic_rate(struct brcm_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;
+	}
+}
+
+/**
+ * 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(&wl->ucode);
+	if (wl->irq)
+		free_irq(wl->irq, wl);
+
+	/* kill dpc */
+	tasklet_kill(&wl->tasklet);
+
+	if (wl->pub) {
+		brcms_debugfs_detach(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 DEBUG
+		kfree(t->name);
+#endif
+		kfree(t);
+	}
+}
+
+/*
+* called from both kernel as from this kernel module (error flow on attach)
+* precondition: perimeter lock is not acquired.
+*/
+static void brcms_remove(struct bcma_device *pdev)
+{
+	struct ieee80211_hw *hw = bcma_get_drvdata(pdev);
+	struct brcms_info *wl = hw->priv;
+
+	if (wl->wlc) {
+		brcms_led_unregister(wl);
+		wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
+		wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
+		ieee80211_unregister_hw(hw);
+	}
+
+	brcms_free(wl);
+
+	bcma_set_drvdata(pdev, NULL);
+	ieee80211_free_hw(hw);
+}
+
+/*
+ * 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]);
+	}
+}
+
+/*
+ * 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 bcma_device *pdev)
+{
+	int status;
+	struct device *device = &pdev->dev;
+	char fw_name[100];
+	int i;
+
+	memset(&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;
+	status = brcms_ucode_data_init(wl, &wl->ucode);
+	brcms_release_fw(wl);
+	return status;
+}
+
+static void brcms_ops_tx(struct ieee80211_hw *hw,
+			 struct ieee80211_tx_control *control,
+			 struct sk_buff *skb)
+{
+	struct brcms_info *wl = hw->priv;
+	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
+
+	spin_lock_bh(&wl->lock);
+	if (!wl->pub->up) {
+		brcms_err(wl->wlc->hw->d11core, "ops->tx called while down\n");
+		kfree_skb(skb);
+		goto done;
+	}
+	if (brcms_c_sendpkt_mac80211(wl->wlc, skb, hw))
+		tx_info->rate_driver_data[0] = control->sta;
+ done:
+	spin_unlock_bh(&wl->lock);
+}
+
+static int brcms_ops_start(struct ieee80211_hw *hw)
+{
+	struct brcms_info *wl = hw->priv;
+	bool blocked;
+	int err;
+
+	if (!wl->ucode.bcm43xx_bomminor) {
+		err = brcms_request_fw(wl, wl->wlc->hw->d11core);
+		if (err)
+			return -ENOENT;
+	}
+
+	ieee80211_wake_queues(hw);
+	spin_lock_bh(&wl->lock);
+	blocked = brcms_rfkill_set_hw_state(wl);
+	spin_unlock_bh(&wl->lock);
+	if (!blocked)
+		wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
+
+	spin_lock_bh(&wl->lock);
+	/* avoid acknowledging frames before a non-monitor device is added */
+	wl->mute_tx = true;
+
+	if (!wl->pub->up)
+		if (!blocked)
+			err = brcms_up(wl);
+		else
+			err = -ERFKILL;
+	else
+		err = -ENODEV;
+	spin_unlock_bh(&wl->lock);
+
+	if (err != 0)
+		brcms_err(wl->wlc->hw->d11core, "%s: brcms_up() returned %d\n",
+			  __func__, err);
+
+	bcma_core_pci_power_save(wl->wlc->hw->d11core->bus, true);
+	return err;
+}
+
+static void brcms_ops_stop(struct ieee80211_hw *hw)
+{
+	struct brcms_info *wl = hw->priv;
+	int status;
+
+	ieee80211_stop_queues(hw);
+
+	if (wl->wlc == NULL)
+		return;
+
+	spin_lock_bh(&wl->lock);
+	status = brcms_c_chipmatch(wl->wlc->hw->d11core);
+	spin_unlock_bh(&wl->lock);
+	if (!status) {
+		brcms_err(wl->wlc->hw->d11core,
+			  "wl: brcms_ops_stop: chipmatch failed\n");
+		return;
+	}
+
+	bcma_core_pci_power_save(wl->wlc->hw->d11core->bus, false);
+
+	/* put driver in down state */
+	spin_lock_bh(&wl->lock);
+	brcms_down(wl);
+	spin_unlock_bh(&wl->lock);
+}
+
+static int
+brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+	struct brcms_info *wl = hw->priv;
+
+	/* Just STA, AP and ADHOC for now */
+	if (vif->type != NL80211_IFTYPE_STATION &&
+	    vif->type != NL80211_IFTYPE_AP &&
+	    vif->type != NL80211_IFTYPE_ADHOC) {
+		brcms_err(wl->wlc->hw->d11core,
+			  "%s: Attempt to add type %d, only STA, AP and AdHoc for now\n",
+			  __func__, vif->type);
+		return -EOPNOTSUPP;
+	}
+
+	spin_lock_bh(&wl->lock);
+	wl->mute_tx = false;
+	brcms_c_mute(wl->wlc, false);
+	if (vif->type == NL80211_IFTYPE_STATION)
+		brcms_c_start_station(wl->wlc, vif->addr);
+	else if (vif->type == NL80211_IFTYPE_AP)
+		brcms_c_start_ap(wl->wlc, vif->addr, vif->bss_conf.bssid,
+				 vif->bss_conf.ssid, vif->bss_conf.ssid_len);
+	else if (vif->type == NL80211_IFTYPE_ADHOC)
+		brcms_c_start_adhoc(wl->wlc, vif->addr);
+	spin_unlock_bh(&wl->lock);
+
+	return 0;
+}
+
+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)
+{
+	struct ieee80211_conf *conf = &hw->conf;
+	struct brcms_info *wl = hw->priv;
+	struct bcma_device *core = wl->wlc->hw->d11core;
+	int err = 0;
+	int new_int;
+
+	spin_lock_bh(&wl->lock);
+	if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
+		brcms_c_set_beacon_listen_interval(wl->wlc,
+						   conf->listen_interval);
+	}
+	if (changed & IEEE80211_CONF_CHANGE_MONITOR)
+		brcms_dbg_info(core, "%s: change monitor mode: %s\n",
+			       __func__, conf->flags & IEEE80211_CONF_MONITOR ?
+			       "true" : "false");
+	if (changed & IEEE80211_CONF_CHANGE_PS)
+		brcms_err(core, "%s: change power-save mode: %s (implement)\n",
+			  __func__, conf->flags & IEEE80211_CONF_PS ?
+			  "true" : "false");
+
+	if (changed & IEEE80211_CONF_CHANGE_POWER) {
+		err = brcms_c_set_tx_power(wl->wlc, conf->power_level);
+		if (err < 0) {
+			brcms_err(core, "%s: Error setting power_level\n",
+				  __func__);
+			goto config_out;
+		}
+		new_int = brcms_c_get_tx_power(wl->wlc);
+		if (new_int != conf->power_level)
+			brcms_err(core,
+				  "%s: Power level req != actual, %d %d\n",
+				  __func__, conf->power_level,
+				  new_int);
+	}
+	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+		if (conf->chandef.width == NL80211_CHAN_WIDTH_20 ||
+		    conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
+			err = brcms_c_set_channel(wl->wlc,
+						  conf->chandef.chan->hw_value);
+		else
+			err = -ENOTSUPP;
+	}
+	if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
+		err = brcms_c_set_rate_limit(wl->wlc,
+					     conf->short_frame_max_tx_count,
+					     conf->long_frame_max_tx_count);
+
+ config_out:
+	spin_unlock_bh(&wl->lock);
+	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->priv;
+	struct bcma_device *core = wl->wlc->hw->d11core;
+
+	if (changed & BSS_CHANGED_ASSOC) {
+		/* association status changed (associated/disassociated)
+		 * also implies a change in the AID.
+		 */
+		brcms_err(core, "%s: %s: %sassociated\n", KBUILD_MODNAME,
+			  __func__, info->assoc ? "" : "dis");
+		spin_lock_bh(&wl->lock);
+		brcms_c_associate_upd(wl->wlc, info->assoc);
+		spin_unlock_bh(&wl->lock);
+	}
+	if (changed & BSS_CHANGED_ERP_SLOT) {
+		s8 val;
+
+		/* slot timing changed */
+		if (info->use_short_slot)
+			val = 1;
+		else
+			val = 0;
+		spin_lock_bh(&wl->lock);
+		brcms_c_set_shortslot_override(wl->wlc, val);
+		spin_unlock_bh(&wl->lock);
+	}
+
+	if (changed & BSS_CHANGED_HT) {
+		/* 802.11n parameters changed */
+		u16 mode = info->ht_operation_mode;
+
+		spin_lock_bh(&wl->lock);
+		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);
+		spin_unlock_bh(&wl->lock);
+	}
+	if (changed & BSS_CHANGED_BASIC_RATES) {
+		struct ieee80211_supported_band *bi;
+		u32 br_mask, i;
+		u16 rate;
+		struct brcm_rateset rs;
+		int error;
+
+		/* retrieve the current rates */
+		spin_lock_bh(&wl->lock);
+		brcms_c_get_current_rateset(wl->wlc, &rs);
+		spin_unlock_bh(&wl->lock);
+
+		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 */
+		spin_lock_bh(&wl->lock);
+		error = brcms_c_set_rateset(wl->wlc, &rs);
+		spin_unlock_bh(&wl->lock);
+		if (error)
+			brcms_err(core, "changing basic rates failed: %d\n",
+				  error);
+	}
+	if (changed & BSS_CHANGED_BEACON_INT) {
+		/* Beacon interval changed */
+		spin_lock_bh(&wl->lock);
+		brcms_c_set_beacon_period(wl->wlc, info->beacon_int);
+		spin_unlock_bh(&wl->lock);
+	}
+	if (changed & BSS_CHANGED_BSSID) {
+		/* BSSID changed, for whatever reason (IBSS and managed mode) */
+		spin_lock_bh(&wl->lock);
+		brcms_c_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET, info->bssid);
+		spin_unlock_bh(&wl->lock);
+	}
+	if (changed & BSS_CHANGED_SSID) {
+		/* BSSID changed, for whatever reason (IBSS and managed mode) */
+		spin_lock_bh(&wl->lock);
+		brcms_c_set_ssid(wl->wlc, info->ssid, info->ssid_len);
+		spin_unlock_bh(&wl->lock);
+	}
+	if (changed & BSS_CHANGED_BEACON) {
+		/* Beacon data changed, retrieve new beacon (beaconing modes) */
+		struct sk_buff *beacon;
+		u16 tim_offset = 0;
+
+		spin_lock_bh(&wl->lock);
+		beacon = ieee80211_beacon_get_tim(hw, vif, &tim_offset, NULL);
+		brcms_c_set_new_beacon(wl->wlc, beacon, tim_offset,
+				       info->dtim_period);
+		spin_unlock_bh(&wl->lock);
+	}
+
+	if (changed & BSS_CHANGED_AP_PROBE_RESP) {
+		struct sk_buff *probe_resp;
+
+		spin_lock_bh(&wl->lock);
+		probe_resp = ieee80211_proberesp_get(hw, vif);
+		brcms_c_set_new_probe_resp(wl->wlc, probe_resp);
+		spin_unlock_bh(&wl->lock);
+	}
+
+	if (changed & BSS_CHANGED_BEACON_ENABLED) {
+		/* Beaconing should be enabled/disabled (beaconing modes) */
+		brcms_err(core, "%s: Beacon enabled: %s\n", __func__,
+			  info->enable_beacon ? "true" : "false");
+		if (info->enable_beacon &&
+		    hw->wiphy->flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) {
+			brcms_c_enable_probe_resp(wl->wlc, true);
+		} else {
+			brcms_c_enable_probe_resp(wl->wlc, false);
+		}
+	}
+
+	if (changed & BSS_CHANGED_CQM) {
+		/* Connection quality monitor config changed */
+		brcms_err(core, "%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 */
+		brcms_err(core, "%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 */
+		brcms_err(core, "%s: arp filtering: %d addresses"
+			  " (implement)\n", __func__, 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.
+		 */
+		brcms_err(core, "%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 bcma_device *core = wl->wlc->hw->d11core;
+
+	changed_flags &= MAC_FILTERS;
+	*total_flags &= MAC_FILTERS;
+
+	if (changed_flags & FIF_ALLMULTI)
+		brcms_dbg_info(core, "FIF_ALLMULTI\n");
+	if (changed_flags & FIF_FCSFAIL)
+		brcms_dbg_info(core, "FIF_FCSFAIL\n");
+	if (changed_flags & FIF_CONTROL)
+		brcms_dbg_info(core, "FIF_CONTROL\n");
+	if (changed_flags & FIF_OTHER_BSS)
+		brcms_dbg_info(core, "FIF_OTHER_BSS\n");
+	if (changed_flags & FIF_PSPOLL)
+		brcms_dbg_info(core, "FIF_PSPOLL\n");
+	if (changed_flags & FIF_BCN_PRBRESP_PROMISC)
+		brcms_dbg_info(core, "FIF_BCN_PRBRESP_PROMISC\n");
+
+	spin_lock_bh(&wl->lock);
+	brcms_c_mac_promisc(wl->wlc, *total_flags);
+	spin_unlock_bh(&wl->lock);
+	return;
+}
+
+static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw,
+				    struct ieee80211_vif *vif,
+				    const u8 *mac_addr)
+{
+	struct brcms_info *wl = hw->priv;
+	spin_lock_bh(&wl->lock);
+	brcms_c_scan_start(wl->wlc);
+	spin_unlock_bh(&wl->lock);
+	return;
+}
+
+static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw,
+				       struct ieee80211_vif *vif)
+{
+	struct brcms_info *wl = hw->priv;
+	spin_lock_bh(&wl->lock);
+	brcms_c_scan_stop(wl->wlc);
+	spin_unlock_bh(&wl->lock);
+	return;
+}
+
+static int
+brcms_ops_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue,
+		  const struct ieee80211_tx_queue_params *params)
+{
+	struct brcms_info *wl = hw->priv;
+
+	spin_lock_bh(&wl->lock);
+	brcms_c_wme_setparams(wl->wlc, queue, params, true);
+	spin_unlock_bh(&wl->lock);
+
+	return 0;
+}
+
+static int
+brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+	       struct ieee80211_sta *sta)
+{
+	struct brcms_info *wl = hw->priv;
+	struct scb *scb = &wl->wlc->pri_scb;
+
+	brcms_c_init_scb(scb);
+
+	wl->pub->global_ampdu = &(scb->scb_ampdu);
+	wl->pub->global_ampdu->scb = scb;
+	wl->pub->global_ampdu->max_pdu = 16;
+
+	/*
+	 * minstrel_ht initiates addBA on our behalf by calling
+	 * ieee80211_start_tx_ba_session()
+	 */
+	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, bool amsdu)
+{
+	struct brcms_info *wl = hw->priv;
+	struct scb *scb = &wl->wlc->pri_scb;
+	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:
+		spin_lock_bh(&wl->lock);
+		status = brcms_c_aggregatable(wl->wlc, tid);
+		spin_unlock_bh(&wl->lock);
+		if (!status) {
+			brcms_err(wl->wlc->hw->d11core,
+				  "START: tid %d is not agg\'able\n", tid);
+			return -EINVAL;
+		}
+		ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+		break;
+
+	case IEEE80211_AMPDU_TX_STOP_CONT:
+	case IEEE80211_AMPDU_TX_STOP_FLUSH:
+	case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
+		spin_lock_bh(&wl->lock);
+		brcms_c_ampdu_flush(wl->wlc, sta, tid);
+		spin_unlock_bh(&wl->lock);
+		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.
+		 */
+		spin_lock_bh(&wl->lock);
+		brcms_c_ampdu_tx_operational(wl->wlc, tid, buf_size,
+			(1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
+			 sta->ht_cap.ampdu_factor)) - 1);
+		spin_unlock_bh(&wl->lock);
+		/* Power save wakeup */
+		break;
+	default:
+		brcms_err(wl->wlc->hw->d11core,
+			  "%s: Invalid command, ignoring\n", __func__);
+	}
+
+	return 0;
+}
+
+static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw)
+{
+	struct brcms_info *wl = hw->priv;
+	bool blocked;
+
+	spin_lock_bh(&wl->lock);
+	blocked = brcms_c_check_radio_disabled(wl->wlc);
+	spin_unlock_bh(&wl->lock);
+
+	wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
+}
+
+static bool brcms_tx_flush_completed(struct brcms_info *wl)
+{
+	bool result;
+
+	spin_lock_bh(&wl->lock);
+	result = brcms_c_tx_flush_completed(wl->wlc);
+	spin_unlock_bh(&wl->lock);
+	return result;
+}
+
+static void brcms_ops_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+			    u32 queues, bool drop)
+{
+	struct brcms_info *wl = hw->priv;
+	int ret;
+
+	no_printk("%s: drop = %s\n", __func__, drop ? "true" : "false");
+
+	ret = wait_event_timeout(wl->tx_flush_wq,
+				 brcms_tx_flush_completed(wl),
+				 msecs_to_jiffies(BRCMS_FLUSH_TIMEOUT));
+
+	brcms_dbg_mac80211(wl->wlc->hw->d11core,
+			   "ret=%d\n", jiffies_to_msecs(ret));
+}
+
+static u64 brcms_ops_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+	struct brcms_info *wl = hw->priv;
+	u64 tsf;
+
+	spin_lock_bh(&wl->lock);
+	tsf = brcms_c_tsf_get(wl->wlc);
+	spin_unlock_bh(&wl->lock);
+
+	return tsf;
+}
+
+static void brcms_ops_set_tsf(struct ieee80211_hw *hw,
+			   struct ieee80211_vif *vif, u64 tsf)
+{
+	struct brcms_info *wl = hw->priv;
+
+	spin_lock_bh(&wl->lock);
+	brcms_c_tsf_set(wl->wlc, tsf);
+	spin_unlock_bh(&wl->lock);
+}
+
+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,
+	.sw_scan_start = brcms_ops_sw_scan_start,
+	.sw_scan_complete = brcms_ops_sw_scan_complete,
+	.conf_tx = brcms_ops_conf_tx,
+	.sta_add = brcms_ops_sta_add,
+	.ampdu_action = brcms_ops_ampdu_action,
+	.rfkill_poll = brcms_ops_rfkill_poll,
+	.flush = brcms_ops_flush,
+	.get_tsf = brcms_ops_get_tsf,
+	.set_tsf = brcms_ops_set_tsf,
+};
+
+void brcms_dpc(unsigned long data)
+{
+	struct brcms_info *wl;
+
+	wl = (struct brcms_info *) data;
+
+	spin_lock_bh(&wl->lock);
+
+	/* call the common second level interrupt handler */
+	if (wl->pub->up) {
+		if (wl->resched) {
+			unsigned long flags;
+
+			spin_lock_irqsave(&wl->isr_lock, flags);
+			brcms_c_intrsupd(wl->wlc);
+			spin_unlock_irqrestore(&wl->isr_lock, 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:
+	spin_unlock_bh(&wl->lock);
+	wake_up(&wl->tx_flush_wq);
+}
+
+static irqreturn_t brcms_isr(int irq, void *dev_id)
+{
+	struct brcms_info *wl;
+	irqreturn_t ret = IRQ_NONE;
+
+	wl = (struct brcms_info *) dev_id;
+
+	spin_lock(&wl->isr_lock);
+
+	/* call common first level interrupt handler */
+	if (brcms_c_isr(wl->wlc)) {
+		/* schedule second level handler */
+		tasklet_schedule(&wl->tasklet);
+		ret = IRQ_HANDLED;
+	}
+
+	spin_unlock(&wl->isr_lock);
+
+	return ret;
+}
+
+/*
+ * 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->priv;
+	struct brcms_c_info *wlc = wl->wlc;
+	struct ieee80211_supported_band *band;
+	int has_5g = 0;
+	u16 phy_type;
+
+	hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
+	hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
+
+	phy_type = brcms_c_get_phy_type(wl->wlc, 0);
+	if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) {
+		band = &wlc->bandstate[BAND_2G_INDEX]->band;
+		*band = brcms_band_2GHz_nphy_template;
+		if (phy_type == PHY_TYPE_LCN) {
+			/* Single stream */
+			band->ht_cap.mcs.rx_mask[1] = 0;
+			band->ht_cap.mcs.rx_highest = cpu_to_le16(72);
+		}
+		hw->wiphy->bands[IEEE80211_BAND_2GHZ] = band;
+	} else {
+		return -EPERM;
+	}
+
+	/* Assume all bands use the same phy.  True for 11n devices. */
+	if (wl->pub->_nbands > 1) {
+		has_5g++;
+		if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) {
+			band = &wlc->bandstate[BAND_5G_INDEX]->band;
+			*band = brcms_band_5GHz_nphy_template;
+			hw->wiphy->bands[IEEE80211_BAND_5GHZ] = band;
+		} 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)
+{
+	ieee80211_hw_set(hw, AMPDU_AGGREGATION);
+	ieee80211_hw_set(hw, SIGNAL_DBM);
+	ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
+
+	hw->extra_tx_headroom = brcms_c_get_header_len();
+	hw->queues = N_TX_QUEUES;
+	hw->max_rates = 2;	/* Primary rate and 1 fallback rate */
+
+	/* channel change time is dependent on chip and band  */
+	hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
+				     BIT(NL80211_IFTYPE_AP) |
+				     BIT(NL80211_IFTYPE_ADHOC);
+
+	/*
+	 * deactivate sending probe responses by ucude, because this will
+	 * cause problems when WPS is used.
+	 *
+	 * hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
+	 */
+
+	hw->rate_control_algorithm = "minstrel_ht";
+
+	hw->sta_data_size = 0;
+	return ieee_hw_rate_init(hw);
+}
+
+/**
+ * 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.
+ *
+ * is called in brcms_bcma_probe() context, therefore no locking required.
+ */
+static struct brcms_info *brcms_attach(struct bcma_device *pdev)
+{
+	struct brcms_info *wl = NULL;
+	int unit, err;
+	struct ieee80211_hw *hw;
+	u8 perm[ETH_ALEN];
+
+	unit = n_adapters_found;
+	err = 0;
+
+	if (unit < 0)
+		return NULL;
+
+	/* allocate private info */
+	hw = bcma_get_drvdata(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);
+
+	init_waitqueue_head(&wl->tx_flush_wq);
+
+	/* setup the bottom half handler */
+	tasklet_init(&wl->tasklet, brcms_dpc, (unsigned long) wl);
+
+	spin_lock_init(&wl->lock);
+	spin_lock_init(&wl->isr_lock);
+
+	/* common load-time initialization */
+	wl->wlc = brcms_c_attach((void *)wl, pdev, unit, false, &err);
+	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;
+
+	/* register our interrupt handler */
+	if (request_irq(pdev->irq, brcms_isr,
+			IRQF_SHARED, KBUILD_MODNAME, wl)) {
+		wiphy_err(wl->wiphy, "wl%d: request_irq() failed\n", unit);
+		goto fail;
+	}
+	wl->irq = pdev->irq;
+
+	/* register module */
+	brcms_c_module_register(wl->pub, "linux", wl, NULL);
+
+	if (ieee_hw_init(hw)) {
+		wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit,
+			  __func__);
+		goto fail;
+	}
+
+	brcms_c_regd_init(wl->wlc);
+
+	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] &&
+	    regulatory_hint(wl->wiphy, wl->pub->srom_ccode))
+		wiphy_err(wl->wiphy, "%s: regulatory hint failed\n", __func__);
+
+	brcms_debugfs_attach(wl->pub);
+	brcms_debugfs_create_files(wl->pub);
+	n_adapters_found++;
+	return wl;
+
+fail:
+	brcms_free(wl);
+	return NULL;
+}
+
+
+
+/**
+ * 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 brcms_bcma_probe(struct bcma_device *pdev)
+{
+	struct brcms_info *wl;
+	struct ieee80211_hw *hw;
+
+	dev_info(&pdev->dev, "mfg %x core %x rev %d class %d irq %d\n",
+		 pdev->id.manuf, pdev->id.id, pdev->id.rev, pdev->id.class,
+		 pdev->irq);
+
+	if ((pdev->id.manuf != BCMA_MANUF_BCM) ||
+	    (pdev->id.id != BCMA_CORE_80211))
+		return -ENODEV;
+
+	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);
+
+	bcma_set_drvdata(pdev, hw);
+
+	memset(hw->priv, 0, sizeof(*wl));
+
+	wl = brcms_attach(pdev);
+	if (!wl) {
+		pr_err("%s: brcms_attach failed!\n", __func__);
+		return -ENODEV;
+	}
+	brcms_led_register(wl);
+
+	return 0;
+}
+
+static int brcms_suspend(struct bcma_device *pdev)
+{
+	struct brcms_info *wl;
+	struct ieee80211_hw *hw;
+
+	hw = bcma_get_drvdata(pdev);
+	wl = hw->priv;
+	if (!wl) {
+		pr_err("%s: %s: no driver private struct!\n", KBUILD_MODNAME,
+		       __func__);
+		return -ENODEV;
+	}
+
+	/* only need to flag hw is down for proper resume */
+	spin_lock_bh(&wl->lock);
+	wl->pub->hw_up = false;
+	spin_unlock_bh(&wl->lock);
+
+	brcms_dbg_info(wl->wlc->hw->d11core, "brcms_suspend ok\n");
+
+	return 0;
+}
+
+static int brcms_resume(struct bcma_device *pdev)
+{
+	return 0;
+}
+
+static struct bcma_driver brcms_bcma_driver = {
+	.name     = KBUILD_MODNAME,
+	.probe    = brcms_bcma_probe,
+	.suspend  = brcms_suspend,
+	.resume   = brcms_resume,
+	.remove   = brcms_remove,
+	.id_table = brcms_coreid_table,
+};
+
+/**
+ * This is the main entry point for the brcmsmac driver.
+ *
+ * This function is scheduled upon module initialization and
+ * does the driver registration, which result in brcms_bcma_probe()
+ * call resulting in the driver bringup.
+ */
+static void brcms_driver_init(struct work_struct *work)
+{
+	int error;
+
+	error = bcma_driver_register(&brcms_bcma_driver);
+	if (error)
+		pr_err("%s: register returned %d\n", __func__, error);
+}
+
+static DECLARE_WORK(brcms_driver_work, brcms_driver_init);
+
+static int __init brcms_module_init(void)
+{
+	brcms_debugfs_init();
+	if (!schedule_work(&brcms_driver_work))
+		return -EBUSY;
+
+	return 0;
+}
+
+/**
+ * This function unloads the brcmsmac driver from the system.
+ *
+ * This function unconditionally unloads the brcmsmac driver module from the
+ * system.
+ *
+ */
+static void __exit brcms_module_exit(void)
+{
+	cancel_work_sync(&brcms_driver_work);
+	bcma_driver_unregister(&brcms_bcma_driver);
+	brcms_debugfs_exit();
+}
+
+module_init(brcms_module_init);
+module_exit(brcms_module_exit);
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif,
+			 bool state, int prio)
+{
+	brcms_err(wl->wlc->hw->d11core, "Shouldn't be here %s\n", __func__);
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+void brcms_init(struct brcms_info *wl)
+{
+	brcms_dbg_info(wl->wlc->hw->d11core, "Initializing wl%d\n",
+		       wl->pub->unit);
+	brcms_reset(wl);
+	brcms_c_init(wl->wlc, wl->mute_tx);
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+uint brcms_reset(struct brcms_info *wl)
+{
+	brcms_dbg_info(wl->wlc->hw->d11core, "Resetting wl%d\n", wl->pub->unit);
+	brcms_c_reset(wl->wlc);
+
+	/* dpc will not be rescheduled */
+	wl->resched = false;
+
+	/* inform publicly that interface is down */
+	wl->pub->up = false;
+
+	return 0;
+}
+
+void brcms_fatal_error(struct brcms_info *wl)
+{
+	brcms_err(wl->wlc->hw->d11core, "wl%d: fatal error, reinitializing\n",
+		  wl->wlc->pub->unit);
+	brcms_reset(wl);
+	ieee80211_restart_hw(wl->pub->ieee_hw);
+}
+
+/*
+ * These are interrupt on/off entry points. Disable interrupts
+ * during interrupt state transition.
+ */
+void brcms_intrson(struct brcms_info *wl)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&wl->isr_lock, flags);
+	brcms_c_intrson(wl->wlc);
+	spin_unlock_irqrestore(&wl->isr_lock, flags);
+}
+
+u32 brcms_intrsoff(struct brcms_info *wl)
+{
+	unsigned long flags;
+	u32 status;
+
+	spin_lock_irqsave(&wl->isr_lock, flags);
+	status = brcms_c_intrsoff(wl->wlc);
+	spin_unlock_irqrestore(&wl->isr_lock, flags);
+	return status;
+}
+
+void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&wl->isr_lock, flags);
+	brcms_c_intrsrestore(wl->wlc, macintmask);
+	spin_unlock_irqrestore(&wl->isr_lock, 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 */
+	spin_unlock_bh(&wl->lock);
+
+	/* 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);
+
+	spin_lock_bh(&wl->lock);
+}
+
+/*
+* precondition: perimeter lock is not acquired
+ */
+static void _brcms_timer(struct work_struct *work)
+{
+	struct brcms_timer *t = container_of(work, struct brcms_timer,
+					     dly_wrk.work);
+
+	spin_lock_bh(&t->wl->lock);
+
+	if (t->set) {
+		if (t->periodic) {
+			atomic_inc(&t->wl->callbacks);
+			ieee80211_queue_delayed_work(t->wl->pub->ieee_hw,
+						     &t->dly_wrk,
+						     msecs_to_jiffies(t->ms));
+		} else {
+			t->set = false;
+		}
+
+		t->fn(t->arg);
+	}
+
+	atomic_dec(&t->wl->callbacks);
+
+	spin_unlock_bh(&t->wl->lock);
+}
+
+/*
+ * 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)
+		return NULL;
+
+	INIT_DELAYED_WORK(&t->dly_wrk, _brcms_timer);
+	t->wl = wl;
+	t->fn = fn;
+	t->arg = arg;
+	t->next = wl->timers;
+	wl->timers = t;
+
+#ifdef DEBUG
+	t->name = kstrdup(name, GFP_ATOMIC);
+#endif
+
+	return t;
+}
+
+/*
+ * 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_timer *t, uint ms, int periodic)
+{
+	struct ieee80211_hw *hw = t->wl->pub->ieee_hw;
+
+#ifdef DEBUG
+	if (t->set)
+		brcms_dbg_info(t->wl->wlc->hw->d11core,
+			       "%s: Already set. Name: %s, per %d\n",
+			       __func__, t->name, periodic);
+#endif
+	t->ms = ms;
+	t->periodic = (bool) periodic;
+	if (!t->set) {
+		t->set = true;
+		atomic_inc(&t->wl->callbacks);
+	}
+
+	ieee80211_queue_delayed_work(hw, &t->dly_wrk, msecs_to_jiffies(ms));
+}
+
+/*
+ * return true if timer successfully deleted, false if still pending
+ *
+ * precondition: perimeter lock has been acquired
+ */
+bool brcms_del_timer(struct brcms_timer *t)
+{
+	if (t->set) {
+		t->set = false;
+		if (!cancel_delayed_work(&t->dly_wrk))
+			return false;
+
+		atomic_dec(&t->wl->callbacks);
+	}
+
+	return true;
+}
+
+/*
+ * precondition: perimeter lock has been acquired
+ */
+void brcms_free_timer(struct brcms_timer *t)
+{
+	struct brcms_info *wl = t->wl;
+	struct brcms_timer *tmp;
+
+	/* delete the timer in case it is active */
+	brcms_del_timer(t);
+
+	if (wl->timers == t) {
+		wl->timers = wl->timers->next;
+#ifdef DEBUG
+		kfree(t->name);
+#endif
+		kfree(t);
+		return;
+
+	}
+
+	tmp = wl->timers;
+	while (tmp) {
+		if (tmp->next == t) {
+			tmp->next = t->next;
+#ifdef DEBUG
+			kfree(t->name);
+#endif
+			kfree(t);
+			return;
+		}
+		tmp = tmp->next;
+	}
+
+}
+
+/*
+ * 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++) {
+			u32 len = le32_to_cpu(hdr->len);
+			if (le32_to_cpu(hdr->idx) == idx) {
+				pdata = wl->fw.fw_bin[i]->data +
+					le32_to_cpu(hdr->offset);
+				*pbuf = kmemdup(pdata, len, GFP_ATOMIC);
+				if (*pbuf == NULL)
+					goto fail;
+
+				return 0;
+			}
+		}
+	}
+	brcms_err(wl->wlc->hw->d11core,
+		  "ERROR: ucode buf tag:%d can not be found!\n", idx);
+	*pbuf = NULL;
+fail:
+	return -ENODATA;
+}
+
+/*
+ * Precondition: Since this function is called in brcms_bcma_probe() context,
+ * no locking is required.
+ */
+int brcms_ucode_init_uint(struct brcms_info *wl, size_t *n_bytes, 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 (le32_to_cpu(hdr->idx) == idx) {
+				pdata = wl->fw.fw_bin[i]->data +
+					le32_to_cpu(hdr->offset);
+				if (le32_to_cpu(hdr->len) != 4) {
+					brcms_err(wl->wlc->hw->d11core,
+						  "ERROR: fw hdr len\n");
+					return -ENOMSG;
+				}
+				*n_bytes = le32_to_cpu(*((__le32 *) pdata));
+				return 0;
+			}
+		}
+	}
+	brcms_err(wl->wlc->hw->d11core,
+		  "ERROR: ucode tag:%d can not be found!\n", idx);
+	return -ENOMSG;
+}
+
+/*
+ * precondition: can both be called locked and unlocked
+ */
+void brcms_ucode_free_buf(void *p)
+{
+	kfree(p);
+}
+
+/*
+ * checks validity of all firmware images loaded from user space
+ *
+ * Precondition: Since this function is called in brcms_bcma_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 (le32_to_cpu(ucode_hdr->offset) +
+				    le32_to_cpu(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);
+
+	spin_unlock_bh(&wl->lock);
+	wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
+	if (blocked)
+		wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy);
+	spin_lock_bh(&wl->lock);
+	return blocked;
+}