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, 8139 insertions, 0 deletions

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c
new file mode 100644
index 000000000000..218cbc8bf3a7
--- /dev/null
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/main.c
@@ -0,0 +1,8139 @@
+/*
+ * 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 pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/pci_ids.h>
+#include <linux/if_ether.h>
+#include <net/cfg80211.h>
+#include <net/mac80211.h>
+#include <brcm_hw_ids.h>
+#include <aiutils.h>
+#include <chipcommon.h>
+#include "rate.h"
+#include "scb.h"
+#include "phy/phy_hal.h"
+#include "channel.h"
+#include "antsel.h"
+#include "stf.h"
+#include "ampdu.h"
+#include "mac80211_if.h"
+#include "ucode_loader.h"
+#include "main.h"
+#include "soc.h"
+#include "dma.h"
+#include "debug.h"
+#include "brcms_trace_events.h"
+
+/* watchdog timer, in unit of ms */
+#define TIMER_INTERVAL_WATCHDOG		1000
+/* radio monitor timer, in unit of ms */
+#define TIMER_INTERVAL_RADIOCHK		800
+
+/* beacon interval, in unit of 1024TU */
+#define BEACON_INTERVAL_DEFAULT		100
+
+/* n-mode support capability */
+/* 2x2 includes both 1x1 & 2x2 devices
+ * reserved #define 2 for future when we want to separate 1x1 & 2x2 and
+ * control it independently
+ */
+#define WL_11N_2x2			1
+#define WL_11N_3x3			3
+#define WL_11N_4x4			4
+
+#define EDCF_ACI_MASK			0x60
+#define EDCF_ACI_SHIFT			5
+#define EDCF_ECWMIN_MASK		0x0f
+#define EDCF_ECWMAX_SHIFT		4
+#define EDCF_AIFSN_MASK			0x0f
+#define EDCF_AIFSN_MAX			15
+#define EDCF_ECWMAX_MASK		0xf0
+
+#define EDCF_AC_BE_TXOP_STA		0x0000
+#define EDCF_AC_BK_TXOP_STA		0x0000
+#define EDCF_AC_VO_ACI_STA		0x62
+#define EDCF_AC_VO_ECW_STA		0x32
+#define EDCF_AC_VI_ACI_STA		0x42
+#define EDCF_AC_VI_ECW_STA		0x43
+#define EDCF_AC_BK_ECW_STA		0xA4
+#define EDCF_AC_VI_TXOP_STA		0x005e
+#define EDCF_AC_VO_TXOP_STA		0x002f
+#define EDCF_AC_BE_ACI_STA		0x03
+#define EDCF_AC_BE_ECW_STA		0xA4
+#define EDCF_AC_BK_ACI_STA		0x27
+#define EDCF_AC_VO_TXOP_AP		0x002f
+
+#define EDCF_TXOP2USEC(txop)		((txop) << 5)
+#define EDCF_ECW2CW(exp)		((1 << (exp)) - 1)
+
+#define APHY_SYMBOL_TIME		4
+#define APHY_PREAMBLE_TIME		16
+#define APHY_SIGNAL_TIME		4
+#define APHY_SIFS_TIME			16
+#define APHY_SERVICE_NBITS		16
+#define APHY_TAIL_NBITS			6
+#define BPHY_SIFS_TIME			10
+#define BPHY_PLCP_SHORT_TIME		96
+
+#define PREN_PREAMBLE			24
+#define PREN_MM_EXT			12
+#define PREN_PREAMBLE_EXT		4
+
+#define DOT11_MAC_HDR_LEN		24
+#define DOT11_ACK_LEN			10
+#define DOT11_BA_LEN			4
+#define DOT11_OFDM_SIGNAL_EXTENSION	6
+#define DOT11_MIN_FRAG_LEN		256
+#define DOT11_RTS_LEN			16
+#define DOT11_CTS_LEN			10
+#define DOT11_BA_BITMAP_LEN		128
+#define DOT11_MAXNUMFRAGS		16
+#define DOT11_MAX_FRAG_LEN		2346
+
+#define BPHY_PLCP_TIME			192
+#define RIFS_11N_TIME			2
+
+/* length of the BCN template area */
+#define BCN_TMPL_LEN			512
+
+/* brcms_bss_info flag bit values */
+#define BRCMS_BSS_HT			0x0020	/* BSS is HT (MIMO) capable */
+
+/* chip rx buffer offset */
+#define BRCMS_HWRXOFF			38
+
+/* rfdisable delay timer 500 ms, runs of ALP clock */
+#define RFDISABLE_DEFAULT		10000000
+
+#define BRCMS_TEMPSENSE_PERIOD		10	/* 10 second timeout */
+
+/* synthpu_dly times in us */
+#define SYNTHPU_DLY_APHY_US		3700
+#define SYNTHPU_DLY_BPHY_US		1050
+#define SYNTHPU_DLY_NPHY_US		2048
+#define SYNTHPU_DLY_LPPHY_US		300
+
+#define ANTCNT				10	/* vanilla M_MAX_ANTCNT val */
+
+/* Per-AC retry limit register definitions; uses defs.h bitfield macros */
+#define EDCF_SHORT_S			0
+#define EDCF_SFB_S			4
+#define EDCF_LONG_S			8
+#define EDCF_LFB_S			12
+#define EDCF_SHORT_M			BITFIELD_MASK(4)
+#define EDCF_SFB_M			BITFIELD_MASK(4)
+#define EDCF_LONG_M			BITFIELD_MASK(4)
+#define EDCF_LFB_M			BITFIELD_MASK(4)
+
+#define RETRY_SHORT_DEF			7	/* Default Short retry Limit */
+#define RETRY_SHORT_MAX			255	/* Maximum Short retry Limit */
+#define RETRY_LONG_DEF			4	/* Default Long retry count */
+#define RETRY_SHORT_FB			3	/* Short count for fb rate */
+#define RETRY_LONG_FB			2	/* Long count for fb rate */
+
+#define APHY_CWMIN			15
+#define PHY_CWMAX			1023
+
+#define EDCF_AIFSN_MIN			1
+
+#define FRAGNUM_MASK			0xF
+
+#define APHY_SLOT_TIME			9
+#define BPHY_SLOT_TIME			20
+
+#define WL_SPURAVOID_OFF		0
+#define WL_SPURAVOID_ON1		1
+#define WL_SPURAVOID_ON2		2
+
+/* invalid core flags, use the saved coreflags */
+#define BRCMS_USE_COREFLAGS		0xffffffff
+
+/* values for PLCPHdr_override */
+#define BRCMS_PLCP_AUTO			-1
+#define BRCMS_PLCP_SHORT		0
+#define BRCMS_PLCP_LONG			1
+
+/* values for g_protection_override and n_protection_override */
+#define BRCMS_PROTECTION_AUTO		-1
+#define BRCMS_PROTECTION_OFF		0
+#define BRCMS_PROTECTION_ON		1
+#define BRCMS_PROTECTION_MMHDR_ONLY	2
+#define BRCMS_PROTECTION_CTS_ONLY	3
+
+/* values for g_protection_control and n_protection_control */
+#define BRCMS_PROTECTION_CTL_OFF	0
+#define BRCMS_PROTECTION_CTL_LOCAL	1
+#define BRCMS_PROTECTION_CTL_OVERLAP	2
+
+/* values for n_protection */
+#define BRCMS_N_PROTECTION_OFF		0
+#define BRCMS_N_PROTECTION_OPTIONAL	1
+#define BRCMS_N_PROTECTION_20IN40	2
+#define BRCMS_N_PROTECTION_MIXEDMODE	3
+
+/* values for band specific 40MHz capabilities */
+#define BRCMS_N_BW_20ALL		0
+#define BRCMS_N_BW_40ALL		1
+#define BRCMS_N_BW_20IN2G_40IN5G	2
+
+/* bitflags for SGI support (sgi_rx iovar) */
+#define BRCMS_N_SGI_20			0x01
+#define BRCMS_N_SGI_40			0x02
+
+/* defines used by the nrate iovar */
+/* MSC in use,indicates b0-6 holds an mcs */
+#define NRATE_MCS_INUSE			0x00000080
+/* rate/mcs value */
+#define NRATE_RATE_MASK			0x0000007f
+/* stf mode mask: siso, cdd, stbc, sdm */
+#define NRATE_STF_MASK			0x0000ff00
+/* stf mode shift */
+#define NRATE_STF_SHIFT			8
+/* bit indicate to override mcs only */
+#define NRATE_OVERRIDE_MCS_ONLY		0x40000000
+#define NRATE_SGI_MASK			0x00800000	/* sgi mode */
+#define NRATE_SGI_SHIFT			23		/* sgi mode */
+#define NRATE_LDPC_CODING		0x00400000	/* adv coding in use */
+#define NRATE_LDPC_SHIFT		22		/* ldpc shift */
+
+#define NRATE_STF_SISO			0		/* stf mode SISO */
+#define NRATE_STF_CDD			1		/* stf mode CDD */
+#define NRATE_STF_STBC			2		/* stf mode STBC */
+#define NRATE_STF_SDM			3		/* stf mode SDM */
+
+#define MAX_DMA_SEGS			4
+
+/* # of entries in Tx FIFO */
+#define NTXD				64
+/* Max # of entries in Rx FIFO based on 4kb page size */
+#define NRXD				256
+
+/* Amount of headroom to leave in Tx FIFO */
+#define TX_HEADROOM			4
+
+/* try to keep this # rbufs posted to the chip */
+#define NRXBUFPOST			32
+
+/* max # frames to process in brcms_c_recv() */
+#define RXBND				8
+/* max # tx status to process in wlc_txstatus() */
+#define TXSBND				8
+
+/* brcmu_format_flags() bit description structure */
+struct brcms_c_bit_desc {
+	u32 bit;
+	const char *name;
+};
+
+/*
+ * The following table lists the buffer memory allocated to xmt fifos in HW.
+ * the size is in units of 256bytes(one block), total size is HW dependent
+ * ucode has default fifo partition, sw can overwrite if necessary
+ *
+ * This is documented in twiki under the topic UcodeTxFifo. Please ensure
+ * the twiki is updated before making changes.
+ */
+
+/* Starting corerev for the fifo size table */
+#define XMTFIFOTBL_STARTREV	17
+
+struct d11init {
+	__le16 addr;
+	__le16 size;
+	__le32 value;
+};
+
+struct edcf_acparam {
+	u8 ACI;
+	u8 ECW;
+	u16 TXOP;
+} __packed;
+
+/* debug/trace */
+uint brcm_msg_level;
+
+/* TX FIFO number to WME/802.1E Access Category */
+static const u8 wme_fifo2ac[] = {
+	IEEE80211_AC_BK,
+	IEEE80211_AC_BE,
+	IEEE80211_AC_VI,
+	IEEE80211_AC_VO,
+	IEEE80211_AC_BE,
+	IEEE80211_AC_BE
+};
+
+/* ieee80211 Access Category to TX FIFO number */
+static const u8 wme_ac2fifo[] = {
+	TX_AC_VO_FIFO,
+	TX_AC_VI_FIFO,
+	TX_AC_BE_FIFO,
+	TX_AC_BK_FIFO
+};
+
+static const u16 xmtfifo_sz[][NFIFO] = {
+	/* corerev 17: 5120, 49152, 49152, 5376, 4352, 1280 */
+	{20, 192, 192, 21, 17, 5},
+	/* corerev 18: */
+	{0, 0, 0, 0, 0, 0},
+	/* corerev 19: */
+	{0, 0, 0, 0, 0, 0},
+	/* corerev 20: 5120, 49152, 49152, 5376, 4352, 1280 */
+	{20, 192, 192, 21, 17, 5},
+	/* corerev 21: 2304, 14848, 5632, 3584, 3584, 1280 */
+	{9, 58, 22, 14, 14, 5},
+	/* corerev 22: 5120, 49152, 49152, 5376, 4352, 1280 */
+	{20, 192, 192, 21, 17, 5},
+	/* corerev 23: 5120, 49152, 49152, 5376, 4352, 1280 */
+	{20, 192, 192, 21, 17, 5},
+	/* corerev 24: 2304, 14848, 5632, 3584, 3584, 1280 */
+	{9, 58, 22, 14, 14, 5},
+	/* corerev 25: */
+	{0, 0, 0, 0, 0, 0},
+	/* corerev 26: */
+	{0, 0, 0, 0, 0, 0},
+	/* corerev 27: */
+	{0, 0, 0, 0, 0, 0},
+	/* corerev 28: 2304, 14848, 5632, 3584, 3584, 1280 */
+	{9, 58, 22, 14, 14, 5},
+};
+
+#ifdef DEBUG
+static const char * const fifo_names[] = {
+	"AC_BK", "AC_BE", "AC_VI", "AC_VO", "BCMC", "ATIM" };
+#else
+static const char fifo_names[6][1];
+#endif
+
+#ifdef DEBUG
+/* pointer to most recently allocated wl/wlc */
+static struct brcms_c_info *wlc_info_dbg = (struct brcms_c_info *) (NULL);
+#endif
+
+/* Mapping of ieee80211 AC numbers to tx fifos */
+static const u8 ac_to_fifo_mapping[IEEE80211_NUM_ACS] = {
+	[IEEE80211_AC_VO]	= TX_AC_VO_FIFO,
+	[IEEE80211_AC_VI]	= TX_AC_VI_FIFO,
+	[IEEE80211_AC_BE]	= TX_AC_BE_FIFO,
+	[IEEE80211_AC_BK]	= TX_AC_BK_FIFO,
+};
+
+/* Mapping of tx fifos to ieee80211 AC numbers */
+static const u8 fifo_to_ac_mapping[IEEE80211_NUM_ACS] = {
+	[TX_AC_BK_FIFO]	= IEEE80211_AC_BK,
+	[TX_AC_BE_FIFO]	= IEEE80211_AC_BE,
+	[TX_AC_VI_FIFO]	= IEEE80211_AC_VI,
+	[TX_AC_VO_FIFO]	= IEEE80211_AC_VO,
+};
+
+static u8 brcms_ac_to_fifo(u8 ac)
+{
+	if (ac >= ARRAY_SIZE(ac_to_fifo_mapping))
+		return TX_AC_BE_FIFO;
+	return ac_to_fifo_mapping[ac];
+}
+
+static u8 brcms_fifo_to_ac(u8 fifo)
+{
+	if (fifo >= ARRAY_SIZE(fifo_to_ac_mapping))
+		return IEEE80211_AC_BE;
+	return fifo_to_ac_mapping[fifo];
+}
+
+/* Find basic rate for a given rate */
+static u8 brcms_basic_rate(struct brcms_c_info *wlc, u32 rspec)
+{
+	if (is_mcs_rate(rspec))
+		return wlc->band->basic_rate[mcs_table[rspec & RSPEC_RATE_MASK]
+		       .leg_ofdm];
+	return wlc->band->basic_rate[rspec & RSPEC_RATE_MASK];
+}
+
+static u16 frametype(u32 rspec, u8 mimoframe)
+{
+	if (is_mcs_rate(rspec))
+		return mimoframe;
+	return is_cck_rate(rspec) ? FT_CCK : FT_OFDM;
+}
+
+/* currently the best mechanism for determining SIFS is the band in use */
+static u16 get_sifs(struct brcms_band *band)
+{
+	return band->bandtype == BRCM_BAND_5G ? APHY_SIFS_TIME :
+				 BPHY_SIFS_TIME;
+}
+
+/*
+ * Detect Card removed.
+ * Even checking an sbconfig register read will not false trigger when the core
+ * is in reset it breaks CF address mechanism. Accessing gphy phyversion will
+ * cause SB error if aphy is in reset on 4306B0-DB. Need a simple accessible
+ * reg with fixed 0/1 pattern (some platforms return all 0).
+ * If clocks are present, call the sb routine which will figure out if the
+ * device is removed.
+ */
+static bool brcms_deviceremoved(struct brcms_c_info *wlc)
+{
+	u32 macctrl;
+
+	if (!wlc->hw->clk)
+		return ai_deviceremoved(wlc->hw->sih);
+	macctrl = bcma_read32(wlc->hw->d11core,
+			      D11REGOFFS(maccontrol));
+	return (macctrl & (MCTL_PSM_JMP_0 | MCTL_IHR_EN)) != MCTL_IHR_EN;
+}
+
+/* sum the individual fifo tx pending packet counts */
+static int brcms_txpktpendtot(struct brcms_c_info *wlc)
+{
+	int i;
+	int pending = 0;
+
+	for (i = 0; i < ARRAY_SIZE(wlc->hw->di); i++)
+		if (wlc->hw->di[i])
+			pending += dma_txpending(wlc->hw->di[i]);
+	return pending;
+}
+
+static bool brcms_is_mband_unlocked(struct brcms_c_info *wlc)
+{
+	return wlc->pub->_nbands > 1 && !wlc->bandlocked;
+}
+
+static int brcms_chspec_bw(u16 chanspec)
+{
+	if (CHSPEC_IS40(chanspec))
+		return BRCMS_40_MHZ;
+	if (CHSPEC_IS20(chanspec))
+		return BRCMS_20_MHZ;
+
+	return BRCMS_10_MHZ;
+}
+
+static void brcms_c_bsscfg_mfree(struct brcms_bss_cfg *cfg)
+{
+	if (cfg == NULL)
+		return;
+
+	kfree(cfg->current_bss);
+	kfree(cfg);
+}
+
+static void brcms_c_detach_mfree(struct brcms_c_info *wlc)
+{
+	if (wlc == NULL)
+		return;
+
+	brcms_c_bsscfg_mfree(wlc->bsscfg);
+	kfree(wlc->pub);
+	kfree(wlc->modulecb);
+	kfree(wlc->default_bss);
+	kfree(wlc->protection);
+	kfree(wlc->stf);
+	kfree(wlc->bandstate[0]);
+	if (wlc->corestate)
+		kfree(wlc->corestate->macstat_snapshot);
+	kfree(wlc->corestate);
+	if (wlc->hw)
+		kfree(wlc->hw->bandstate[0]);
+	kfree(wlc->hw);
+	if (wlc->beacon)
+		dev_kfree_skb_any(wlc->beacon);
+	if (wlc->probe_resp)
+		dev_kfree_skb_any(wlc->probe_resp);
+
+	kfree(wlc);
+}
+
+static struct brcms_bss_cfg *brcms_c_bsscfg_malloc(uint unit)
+{
+	struct brcms_bss_cfg *cfg;
+
+	cfg = kzalloc(sizeof(struct brcms_bss_cfg), GFP_ATOMIC);
+	if (cfg == NULL)
+		goto fail;
+
+	cfg->current_bss = kzalloc(sizeof(struct brcms_bss_info), GFP_ATOMIC);
+	if (cfg->current_bss == NULL)
+		goto fail;
+
+	return cfg;
+
+ fail:
+	brcms_c_bsscfg_mfree(cfg);
+	return NULL;
+}
+
+static struct brcms_c_info *
+brcms_c_attach_malloc(uint unit, uint *err, uint devid)
+{
+	struct brcms_c_info *wlc;
+
+	wlc = kzalloc(sizeof(struct brcms_c_info), GFP_ATOMIC);
+	if (wlc == NULL) {
+		*err = 1002;
+		goto fail;
+	}
+
+	/* allocate struct brcms_c_pub state structure */
+	wlc->pub = kzalloc(sizeof(struct brcms_pub), GFP_ATOMIC);
+	if (wlc->pub == NULL) {
+		*err = 1003;
+		goto fail;
+	}
+	wlc->pub->wlc = wlc;
+
+	/* allocate struct brcms_hardware state structure */
+
+	wlc->hw = kzalloc(sizeof(struct brcms_hardware), GFP_ATOMIC);
+	if (wlc->hw == NULL) {
+		*err = 1005;
+		goto fail;
+	}
+	wlc->hw->wlc = wlc;
+
+	wlc->hw->bandstate[0] =
+		kzalloc(sizeof(struct brcms_hw_band) * MAXBANDS, GFP_ATOMIC);
+	if (wlc->hw->bandstate[0] == NULL) {
+		*err = 1006;
+		goto fail;
+	} else {
+		int i;
+
+		for (i = 1; i < MAXBANDS; i++)
+			wlc->hw->bandstate[i] = (struct brcms_hw_band *)
+			    ((unsigned long)wlc->hw->bandstate[0] +
+			     (sizeof(struct brcms_hw_band) * i));
+	}
+
+	wlc->modulecb =
+		kzalloc(sizeof(struct modulecb) * BRCMS_MAXMODULES, GFP_ATOMIC);
+	if (wlc->modulecb == NULL) {
+		*err = 1009;
+		goto fail;
+	}
+
+	wlc->default_bss = kzalloc(sizeof(struct brcms_bss_info), GFP_ATOMIC);
+	if (wlc->default_bss == NULL) {
+		*err = 1010;
+		goto fail;
+	}
+
+	wlc->bsscfg = brcms_c_bsscfg_malloc(unit);
+	if (wlc->bsscfg == NULL) {
+		*err = 1011;
+		goto fail;
+	}
+
+	wlc->protection = kzalloc(sizeof(struct brcms_protection),
+				  GFP_ATOMIC);
+	if (wlc->protection == NULL) {
+		*err = 1016;
+		goto fail;
+	}
+
+	wlc->stf = kzalloc(sizeof(struct brcms_stf), GFP_ATOMIC);
+	if (wlc->stf == NULL) {
+		*err = 1017;
+		goto fail;
+	}
+
+	wlc->bandstate[0] =
+		kzalloc(sizeof(struct brcms_band)*MAXBANDS, GFP_ATOMIC);
+	if (wlc->bandstate[0] == NULL) {
+		*err = 1025;
+		goto fail;
+	} else {
+		int i;
+
+		for (i = 1; i < MAXBANDS; i++)
+			wlc->bandstate[i] = (struct brcms_band *)
+				((unsigned long)wlc->bandstate[0]
+				+ (sizeof(struct brcms_band)*i));
+	}
+
+	wlc->corestate = kzalloc(sizeof(struct brcms_core), GFP_ATOMIC);
+	if (wlc->corestate == NULL) {
+		*err = 1026;
+		goto fail;
+	}
+
+	wlc->corestate->macstat_snapshot =
+		kzalloc(sizeof(struct macstat), GFP_ATOMIC);
+	if (wlc->corestate->macstat_snapshot == NULL) {
+		*err = 1027;
+		goto fail;
+	}
+
+	return wlc;
+
+ fail:
+	brcms_c_detach_mfree(wlc);
+	return NULL;
+}
+
+/*
+ * Update the slot timing for standard 11b/g (20us slots)
+ * or shortslot 11g (9us slots)
+ * The PSM needs to be suspended for this call.
+ */
+static void brcms_b_update_slot_timing(struct brcms_hardware *wlc_hw,
+					bool shortslot)
+{
+	struct bcma_device *core = wlc_hw->d11core;
+
+	if (shortslot) {
+		/* 11g short slot: 11a timing */
+		bcma_write16(core, D11REGOFFS(ifs_slot), 0x0207);
+		brcms_b_write_shm(wlc_hw, M_DOT11_SLOT, APHY_SLOT_TIME);
+	} else {
+		/* 11g long slot: 11b timing */
+		bcma_write16(core, D11REGOFFS(ifs_slot), 0x0212);
+		brcms_b_write_shm(wlc_hw, M_DOT11_SLOT, BPHY_SLOT_TIME);
+	}
+}
+
+/*
+ * calculate frame duration of a given rate and length, return
+ * time in usec unit
+ */
+static uint brcms_c_calc_frame_time(struct brcms_c_info *wlc, u32 ratespec,
+				    u8 preamble_type, uint mac_len)
+{
+	uint nsyms, dur = 0, Ndps, kNdps;
+	uint rate = rspec2rate(ratespec);
+
+	if (rate == 0) {
+		brcms_err(wlc->hw->d11core, "wl%d: WAR: using rate of 1 mbps\n",
+			  wlc->pub->unit);
+		rate = BRCM_RATE_1M;
+	}
+
+	if (is_mcs_rate(ratespec)) {
+		uint mcs = ratespec & RSPEC_RATE_MASK;
+		int tot_streams = mcs_2_txstreams(mcs) + rspec_stc(ratespec);
+
+		dur = PREN_PREAMBLE + (tot_streams * PREN_PREAMBLE_EXT);
+		if (preamble_type == BRCMS_MM_PREAMBLE)
+			dur += PREN_MM_EXT;
+		/* 1000Ndbps = kbps * 4 */
+		kNdps = mcs_2_rate(mcs, rspec_is40mhz(ratespec),
+				   rspec_issgi(ratespec)) * 4;
+
+		if (rspec_stc(ratespec) == 0)
+			nsyms =
+			    CEIL((APHY_SERVICE_NBITS + 8 * mac_len +
+				  APHY_TAIL_NBITS) * 1000, kNdps);
+		else
+			/* STBC needs to have even number of symbols */
+			nsyms =
+			    2 *
+			    CEIL((APHY_SERVICE_NBITS + 8 * mac_len +
+				  APHY_TAIL_NBITS) * 1000, 2 * kNdps);
+
+		dur += APHY_SYMBOL_TIME * nsyms;
+		if (wlc->band->bandtype == BRCM_BAND_2G)
+			dur += DOT11_OFDM_SIGNAL_EXTENSION;
+	} else if (is_ofdm_rate(rate)) {
+		dur = APHY_PREAMBLE_TIME;
+		dur += APHY_SIGNAL_TIME;
+		/* Ndbps = Mbps * 4 = rate(500Kbps) * 2 */
+		Ndps = rate * 2;
+		/* NSyms = CEILING((SERVICE + 8*NBytes + TAIL) / Ndbps) */
+		nsyms =
+		    CEIL((APHY_SERVICE_NBITS + 8 * mac_len + APHY_TAIL_NBITS),
+			 Ndps);
+		dur += APHY_SYMBOL_TIME * nsyms;
+		if (wlc->band->bandtype == BRCM_BAND_2G)
+			dur += DOT11_OFDM_SIGNAL_EXTENSION;
+	} else {
+		/*
+		 * calc # bits * 2 so factor of 2 in rate (1/2 mbps)
+		 * will divide out
+		 */
+		mac_len = mac_len * 8 * 2;
+		/* calc ceiling of bits/rate = microseconds of air time */
+		dur = (mac_len + rate - 1) / rate;
+		if (preamble_type & BRCMS_SHORT_PREAMBLE)
+			dur += BPHY_PLCP_SHORT_TIME;
+		else
+			dur += BPHY_PLCP_TIME;
+	}
+	return dur;
+}
+
+static void brcms_c_write_inits(struct brcms_hardware *wlc_hw,
+				const struct d11init *inits)
+{
+	struct bcma_device *core = wlc_hw->d11core;
+	int i;
+	uint offset;
+	u16 size;
+	u32 value;
+
+	brcms_dbg_info(wlc_hw->d11core, "wl%d\n", wlc_hw->unit);
+
+	for (i = 0; inits[i].addr != cpu_to_le16(0xffff); i++) {
+		size = le16_to_cpu(inits[i].size);
+		offset = le16_to_cpu(inits[i].addr);
+		value = le32_to_cpu(inits[i].value);
+		if (size == 2)
+			bcma_write16(core, offset, value);
+		else if (size == 4)
+			bcma_write32(core, offset, value);
+		else
+			break;
+	}
+}
+
+static void brcms_c_write_mhf(struct brcms_hardware *wlc_hw, u16 *mhfs)
+{
+	u8 idx;
+	u16 addr[] = {
+		M_HOST_FLAGS1, M_HOST_FLAGS2, M_HOST_FLAGS3, M_HOST_FLAGS4,
+		M_HOST_FLAGS5
+	};
+
+	for (idx = 0; idx < MHFMAX; idx++)
+		brcms_b_write_shm(wlc_hw, addr[idx], mhfs[idx]);
+}
+
+static void brcms_c_ucode_bsinit(struct brcms_hardware *wlc_hw)
+{
+	struct brcms_ucode *ucode = &wlc_hw->wlc->wl->ucode;
+
+	/* init microcode host flags */
+	brcms_c_write_mhf(wlc_hw, wlc_hw->band->mhfs);
+
+	/* do band-specific ucode IHR, SHM, and SCR inits */
+	if (D11REV_IS(wlc_hw->corerev, 17) || D11REV_IS(wlc_hw->corerev, 23)) {
+		if (BRCMS_ISNPHY(wlc_hw->band))
+			brcms_c_write_inits(wlc_hw, ucode->d11n0bsinitvals16);
+		else
+			brcms_err(wlc_hw->d11core,
+				  "%s: wl%d: unsupported phy in corerev %d\n",
+				  __func__, wlc_hw->unit,
+				  wlc_hw->corerev);
+	} else {
+		if (D11REV_IS(wlc_hw->corerev, 24)) {
+			if (BRCMS_ISLCNPHY(wlc_hw->band))
+				brcms_c_write_inits(wlc_hw,
+						    ucode->d11lcn0bsinitvals24);
+			else
+				brcms_err(wlc_hw->d11core,
+					  "%s: wl%d: unsupported phy in core rev %d\n",
+					  __func__, wlc_hw->unit,
+					  wlc_hw->corerev);
+		} else {
+			brcms_err(wlc_hw->d11core,
+				  "%s: wl%d: unsupported corerev %d\n",
+				  __func__, wlc_hw->unit, wlc_hw->corerev);
+		}
+	}
+}
+
+static void brcms_b_core_ioctl(struct brcms_hardware *wlc_hw, u32 m, u32 v)
+{
+	struct bcma_device *core = wlc_hw->d11core;
+	u32 ioctl = bcma_aread32(core, BCMA_IOCTL) & ~m;
+
+	bcma_awrite32(core, BCMA_IOCTL, ioctl | v);
+}
+
+static void brcms_b_core_phy_clk(struct brcms_hardware *wlc_hw, bool clk)
+{
+	brcms_dbg_info(wlc_hw->d11core, "wl%d: clk %d\n", wlc_hw->unit, clk);
+
+	wlc_hw->phyclk = clk;
+
+	if (OFF == clk) {	/* clear gmode bit, put phy into reset */
+
+		brcms_b_core_ioctl(wlc_hw, (SICF_PRST | SICF_FGC | SICF_GMODE),
+				   (SICF_PRST | SICF_FGC));
+		udelay(1);
+		brcms_b_core_ioctl(wlc_hw, (SICF_PRST | SICF_FGC), SICF_PRST);
+		udelay(1);
+
+	} else {		/* take phy out of reset */
+
+		brcms_b_core_ioctl(wlc_hw, (SICF_PRST | SICF_FGC), SICF_FGC);
+		udelay(1);
+		brcms_b_core_ioctl(wlc_hw, SICF_FGC, 0);
+		udelay(1);
+
+	}
+}
+
+/* low-level band switch utility routine */
+static void brcms_c_setxband(struct brcms_hardware *wlc_hw, uint bandunit)
+{
+	brcms_dbg_mac80211(wlc_hw->d11core, "wl%d: bandunit %d\n", wlc_hw->unit,
+			   bandunit);
+
+	wlc_hw->band = wlc_hw->bandstate[bandunit];
+
+	/*
+	 * BMAC_NOTE:
+	 *   until we eliminate need for wlc->band refs in low level code
+	 */
+	wlc_hw->wlc->band = wlc_hw->wlc->bandstate[bandunit];
+
+	/* set gmode core flag */
+	if (wlc_hw->sbclk && !wlc_hw->noreset) {
+		u32 gmode = 0;
+
+		if (bandunit == 0)
+			gmode = SICF_GMODE;
+
+		brcms_b_core_ioctl(wlc_hw, SICF_GMODE, gmode);
+	}
+}
+
+/* switch to new band but leave it inactive */
+static u32 brcms_c_setband_inact(struct brcms_c_info *wlc, uint bandunit)
+{
+	struct brcms_hardware *wlc_hw = wlc->hw;
+	u32 macintmask;
+	u32 macctrl;
+
+	brcms_dbg_mac80211(wlc_hw->d11core, "wl%d\n", wlc_hw->unit);
+	macctrl = bcma_read32(wlc_hw->d11core,
+			      D11REGOFFS(maccontrol));
+	WARN_ON((macctrl & MCTL_EN_MAC) != 0);
+
+	/* disable interrupts */
+	macintmask = brcms_intrsoff(wlc->wl);
+
+	/* radio off */
+	wlc_phy_switch_radio(wlc_hw->band->pi, OFF);
+
+	brcms_b_core_phy_clk(wlc_hw, OFF);
+
+	brcms_c_setxband(wlc_hw, bandunit);
+
+	return macintmask;
+}
+
+/* process an individual struct tx_status */
+static bool
+brcms_c_dotxstatus(struct brcms_c_info *wlc, struct tx_status *txs)
+{
+	struct sk_buff *p = NULL;
+	uint queue = NFIFO;
+	struct dma_pub *dma = NULL;
+	struct d11txh *txh = NULL;
+	struct scb *scb = NULL;
+	bool free_pdu;
+	int tx_rts, tx_frame_count, tx_rts_count;
+	uint totlen, supr_status;
+	bool lastframe;
+	struct ieee80211_hdr *h;
+	u16 mcl;
+	struct ieee80211_tx_info *tx_info;
+	struct ieee80211_tx_rate *txrate;
+	int i;
+	bool fatal = true;
+
+	trace_brcms_txstatus(&wlc->hw->d11core->dev, txs->framelen,
+			     txs->frameid, txs->status, txs->lasttxtime,
+			     txs->sequence, txs->phyerr, txs->ackphyrxsh);
+
+	/* discard intermediate indications for ucode with one legitimate case:
+	 *   e.g. if "useRTS" is set. ucode did a successful rts/cts exchange,
+	 *   but the subsequent tx of DATA failed. so it will start rts/cts
+	 *   from the beginning (resetting the rts transmission count)
+	 */
+	if (!(txs->status & TX_STATUS_AMPDU)
+	    && (txs->status & TX_STATUS_INTERMEDIATE)) {
+		brcms_dbg_tx(wlc->hw->d11core, "INTERMEDIATE but not AMPDU\n");
+		fatal = false;
+		goto out;
+	}
+
+	queue = txs->frameid & TXFID_QUEUE_MASK;
+	if (queue >= NFIFO) {
+		brcms_err(wlc->hw->d11core, "queue %u >= NFIFO\n", queue);
+		goto out;
+	}
+
+	dma = wlc->hw->di[queue];
+
+	p = dma_getnexttxp(wlc->hw->di[queue], DMA_RANGE_TRANSMITTED);
+	if (p == NULL) {
+		brcms_err(wlc->hw->d11core, "dma_getnexttxp returned null!\n");
+		goto out;
+	}
+
+	txh = (struct d11txh *) (p->data);
+	mcl = le16_to_cpu(txh->MacTxControlLow);
+
+	if (txs->phyerr)
+		brcms_dbg_tx(wlc->hw->d11core, "phyerr 0x%x, rate 0x%x\n",
+			     txs->phyerr, txh->MainRates);
+
+	if (txs->frameid != le16_to_cpu(txh->TxFrameID)) {
+		brcms_err(wlc->hw->d11core, "frameid != txh->TxFrameID\n");
+		goto out;
+	}
+	tx_info = IEEE80211_SKB_CB(p);
+	h = (struct ieee80211_hdr *)((u8 *) (txh + 1) + D11_PHY_HDR_LEN);
+
+	if (tx_info->rate_driver_data[0])
+		scb = &wlc->pri_scb;
+
+	if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
+		brcms_c_ampdu_dotxstatus(wlc->ampdu, scb, p, txs);
+		fatal = false;
+		goto out;
+	}
+
+	/*
+	 * brcms_c_ampdu_dotxstatus() will trace tx descriptors for AMPDU
+	 * frames; this traces them for the rest.
+	 */
+	trace_brcms_txdesc(&wlc->hw->d11core->dev, txh, sizeof(*txh));
+
+	supr_status = txs->status & TX_STATUS_SUPR_MASK;
+	if (supr_status == TX_STATUS_SUPR_BADCH) {
+		unsigned xfts = le16_to_cpu(txh->XtraFrameTypes);
+		brcms_dbg_tx(wlc->hw->d11core,
+			     "Pkt tx suppressed, dest chan %u, current %d\n",
+			     (xfts >> XFTS_CHANNEL_SHIFT) & 0xff,
+			     CHSPEC_CHANNEL(wlc->default_bss->chanspec));
+	}
+
+	tx_rts = le16_to_cpu(txh->MacTxControlLow) & TXC_SENDRTS;
+	tx_frame_count =
+	    (txs->status & TX_STATUS_FRM_RTX_MASK) >> TX_STATUS_FRM_RTX_SHIFT;
+	tx_rts_count =
+	    (txs->status & TX_STATUS_RTS_RTX_MASK) >> TX_STATUS_RTS_RTX_SHIFT;
+
+	lastframe = !ieee80211_has_morefrags(h->frame_control);
+
+	if (!lastframe) {
+		brcms_err(wlc->hw->d11core, "Not last frame!\n");
+	} else {
+		/*
+		 * Set information to be consumed by Minstrel ht.
+		 *
+		 * The "fallback limit" is the number of tx attempts a given
+		 * MPDU is sent at the "primary" rate. Tx attempts beyond that
+		 * limit are sent at the "secondary" rate.
+		 * A 'short frame' does not exceed RTS treshold.
+		 */
+		u16 sfbl,	/* Short Frame Rate Fallback Limit */
+		    lfbl,	/* Long Frame Rate Fallback Limit */
+		    fbl;
+
+		if (queue < IEEE80211_NUM_ACS) {
+			sfbl = GFIELD(wlc->wme_retries[wme_fifo2ac[queue]],
+				      EDCF_SFB);
+			lfbl = GFIELD(wlc->wme_retries[wme_fifo2ac[queue]],
+				      EDCF_LFB);
+		} else {
+			sfbl = wlc->SFBL;
+			lfbl = wlc->LFBL;
+		}
+
+		txrate = tx_info->status.rates;
+		if (txrate[0].flags & IEEE80211_TX_RC_USE_RTS_CTS)
+			fbl = lfbl;
+		else
+			fbl = sfbl;
+
+		ieee80211_tx_info_clear_status(tx_info);
+
+		if ((tx_frame_count > fbl) && (txrate[1].idx >= 0)) {
+			/*
+			 * rate selection requested a fallback rate
+			 * and we used it
+			 */
+			txrate[0].count = fbl;
+			txrate[1].count = tx_frame_count - fbl;
+		} else {
+			/*
+			 * rate selection did not request fallback rate, or
+			 * we didn't need it
+			 */
+			txrate[0].count = tx_frame_count;
+			/*
+			 * rc80211_minstrel.c:minstrel_tx_status() expects
+			 * unused rates to be marked with idx = -1
+			 */
+			txrate[1].idx = -1;
+			txrate[1].count = 0;
+		}
+
+		/* clear the rest of the rates */
+		for (i = 2; i < IEEE80211_TX_MAX_RATES; i++) {
+			txrate[i].idx = -1;
+			txrate[i].count = 0;
+		}
+
+		if (txs->status & TX_STATUS_ACK_RCV)
+			tx_info->flags |= IEEE80211_TX_STAT_ACK;
+	}
+
+	totlen = p->len;
+	free_pdu = true;
+
+	if (lastframe) {
+		/* remove PLCP & Broadcom tx descriptor header */
+		skb_pull(p, D11_PHY_HDR_LEN);
+		skb_pull(p, D11_TXH_LEN);
+		ieee80211_tx_status_irqsafe(wlc->pub->ieee_hw, p);
+	} else {
+		brcms_err(wlc->hw->d11core,
+			  "%s: Not last frame => not calling tx_status\n",
+			  __func__);
+	}
+
+	fatal = false;
+
+ out:
+	if (fatal) {
+		if (txh)
+			trace_brcms_txdesc(&wlc->hw->d11core->dev, txh,
+					   sizeof(*txh));
+		brcmu_pkt_buf_free_skb(p);
+	}
+
+	if (dma && queue < NFIFO) {
+		u16 ac_queue = brcms_fifo_to_ac(queue);
+		if (dma->txavail > TX_HEADROOM && queue < TX_BCMC_FIFO &&
+		    ieee80211_queue_stopped(wlc->pub->ieee_hw, ac_queue))
+			ieee80211_wake_queue(wlc->pub->ieee_hw, ac_queue);
+		dma_kick_tx(dma);
+	}
+
+	return fatal;
+}
+
+/* process tx completion events in BMAC
+ * Return true if more tx status need to be processed. false otherwise.
+ */
+static bool
+brcms_b_txstatus(struct brcms_hardware *wlc_hw, bool bound, bool *fatal)
+{
+	struct bcma_device *core;
+	struct tx_status txstatus, *txs;
+	u32 s1, s2;
+	uint n = 0;
+	/*
+	 * Param 'max_tx_num' indicates max. # tx status to process before
+	 * break out.
+	 */
+	uint max_tx_num = bound ? TXSBND : -1;
+
+	txs = &txstatus;
+	core = wlc_hw->d11core;
+	*fatal = false;
+
+	while (n < max_tx_num) {
+		s1 = bcma_read32(core, D11REGOFFS(frmtxstatus));
+		if (s1 == 0xffffffff) {
+			brcms_err(core, "wl%d: %s: dead chip\n", wlc_hw->unit,
+				  __func__);
+			*fatal = true;
+			return false;
+		}
+		/* only process when valid */
+		if (!(s1 & TXS_V))
+			break;
+
+		s2 = bcma_read32(core, D11REGOFFS(frmtxstatus2));
+		txs->status = s1 & TXS_STATUS_MASK;
+		txs->frameid = (s1 & TXS_FID_MASK) >> TXS_FID_SHIFT;
+		txs->sequence = s2 & TXS_SEQ_MASK;
+		txs->phyerr = (s2 & TXS_PTX_MASK) >> TXS_PTX_SHIFT;
+		txs->lasttxtime = 0;
+
+		*fatal = brcms_c_dotxstatus(wlc_hw->wlc, txs);
+		if (*fatal == true)
+			return false;
+		n++;
+	}
+
+	return n >= max_tx_num;
+}
+
+static void brcms_c_tbtt(struct brcms_c_info *wlc)
+{
+	if (wlc->bsscfg->type == BRCMS_TYPE_ADHOC)
+		/*
+		 * DirFrmQ is now valid...defer setting until end
+		 * of ATIM window
+		 */
+		wlc->qvalid |= MCMD_DIRFRMQVAL;
+}
+
+/* set initial host flags value */
+static void
+brcms_c_mhfdef(struct brcms_c_info *wlc, u16 *mhfs, u16 mhf2_init)
+{
+	struct brcms_hardware *wlc_hw = wlc->hw;
+
+	memset(mhfs, 0, MHFMAX * sizeof(u16));
+
+	mhfs[MHF2] |= mhf2_init;
+
+	/* prohibit use of slowclock on multifunction boards */
+	if (wlc_hw->boardflags & BFL_NOPLLDOWN)
+		mhfs[MHF1] |= MHF1_FORCEFASTCLK;
+
+	if (BRCMS_ISNPHY(wlc_hw->band) && NREV_LT(wlc_hw->band->phyrev, 2)) {
+		mhfs[MHF2] |= MHF2_NPHY40MHZ_WAR;
+		mhfs[MHF1] |= MHF1_IQSWAP_WAR;
+	}
+}
+
+static uint
+dmareg(uint direction, uint fifonum)
+{
+	if (direction == DMA_TX)
+		return offsetof(struct d11regs, fifo64regs[fifonum].dmaxmt);
+	return offsetof(struct d11regs, fifo64regs[fifonum].dmarcv);
+}
+
+static bool brcms_b_attach_dmapio(struct brcms_c_info *wlc, uint j, bool wme)
+{
+	uint i;
+	char name[8];
+	/*
+	 * ucode host flag 2 needed for pio mode, independent of band and fifo
+	 */
+	u16 pio_mhf2 = 0;
+	struct brcms_hardware *wlc_hw = wlc->hw;
+	uint unit = wlc_hw->unit;
+
+	/* name and offsets for dma_attach */
+	snprintf(name, sizeof(name), "wl%d", unit);
+
+	if (wlc_hw->di[0] == NULL) {	/* Init FIFOs */
+		int dma_attach_err = 0;
+
+		/*
+		 * FIFO 0
+		 * TX: TX_AC_BK_FIFO (TX AC Background data packets)
+		 * RX: RX_FIFO (RX data packets)
+		 */
+		wlc_hw->di[0] = dma_attach(name, wlc,
+					   (wme ? dmareg(DMA_TX, 0) : 0),
+					   dmareg(DMA_RX, 0),
+					   (wme ? NTXD : 0), NRXD,
+					   RXBUFSZ, -1, NRXBUFPOST,
+					   BRCMS_HWRXOFF);
+		dma_attach_err |= (NULL == wlc_hw->di[0]);
+
+		/*
+		 * FIFO 1
+		 * TX: TX_AC_BE_FIFO (TX AC Best-Effort data packets)
+		 *   (legacy) TX_DATA_FIFO (TX data packets)
+		 * RX: UNUSED
+		 */
+		wlc_hw->di[1] = dma_attach(name, wlc,
+					   dmareg(DMA_TX, 1), 0,
+					   NTXD, 0, 0, -1, 0, 0);
+		dma_attach_err |= (NULL == wlc_hw->di[1]);
+
+		/*
+		 * FIFO 2
+		 * TX: TX_AC_VI_FIFO (TX AC Video data packets)
+		 * RX: UNUSED
+		 */
+		wlc_hw->di[2] = dma_attach(name, wlc,
+					   dmareg(DMA_TX, 2), 0,
+					   NTXD, 0, 0, -1, 0, 0);
+		dma_attach_err |= (NULL == wlc_hw->di[2]);
+		/*
+		 * FIFO 3
+		 * TX: TX_AC_VO_FIFO (TX AC Voice data packets)
+		 *   (legacy) TX_CTL_FIFO (TX control & mgmt packets)
+		 */
+		wlc_hw->di[3] = dma_attach(name, wlc,
+					   dmareg(DMA_TX, 3),
+					   0, NTXD, 0, 0, -1,
+					   0, 0);
+		dma_attach_err |= (NULL == wlc_hw->di[3]);
+/* Cleaner to leave this as if with AP defined */
+
+		if (dma_attach_err) {
+			brcms_err(wlc_hw->d11core,
+				  "wl%d: wlc_attach: dma_attach failed\n",
+				  unit);
+			return false;
+		}
+
+		/* get pointer to dma engine tx flow control variable */
+		for (i = 0; i < NFIFO; i++)
+			if (wlc_hw->di[i])
+				wlc_hw->txavail[i] =
+				    (uint *) dma_getvar(wlc_hw->di[i],
+							"&txavail");
+	}
+
+	/* initial ucode host flags */
+	brcms_c_mhfdef(wlc, wlc_hw->band->mhfs, pio_mhf2);
+
+	return true;
+}
+
+static void brcms_b_detach_dmapio(struct brcms_hardware *wlc_hw)
+{
+	uint j;
+
+	for (j = 0; j < NFIFO; j++) {
+		if (wlc_hw->di[j]) {
+			dma_detach(wlc_hw->di[j]);
+			wlc_hw->di[j] = NULL;
+		}
+	}
+}
+
+/*
+ * Initialize brcms_c_info default values ...
+ * may get overrides later in this function
+ *  BMAC_NOTES, move low out and resolve the dangling ones
+ */
+static void brcms_b_info_init(struct brcms_hardware *wlc_hw)
+{
+	struct brcms_c_info *wlc = wlc_hw->wlc;
+
+	/* set default sw macintmask value */
+	wlc->defmacintmask = DEF_MACINTMASK;
+
+	/* various 802.11g modes */
+	wlc_hw->shortslot = false;
+
+	wlc_hw->SFBL = RETRY_SHORT_FB;
+	wlc_hw->LFBL = RETRY_LONG_FB;
+
+	/* default mac retry limits */
+	wlc_hw->SRL = RETRY_SHORT_DEF;
+	wlc_hw->LRL = RETRY_LONG_DEF;
+	wlc_hw->chanspec = ch20mhz_chspec(1);
+}
+
+static void brcms_b_wait_for_wake(struct brcms_hardware *wlc_hw)
+{
+	/* delay before first read of ucode state */
+	udelay(40);
+
+	/* wait until ucode is no longer asleep */
+	SPINWAIT((brcms_b_read_shm(wlc_hw, M_UCODE_DBGST) ==
+		  DBGST_ASLEEP), wlc_hw->wlc->fastpwrup_dly);
+}
+
+/* control chip clock to save power, enable dynamic clock or force fast clock */
+static void brcms_b_clkctl_clk(struct brcms_hardware *wlc_hw, enum bcma_clkmode mode)
+{
+	if (ai_get_cccaps(wlc_hw->sih) & CC_CAP_PMU) {
+		/* new chips with PMU, CCS_FORCEHT will distribute the HT clock
+		 * on backplane, but mac core will still run on ALP(not HT) when
+		 * it enters powersave mode, which means the FCA bit may not be
+		 * set. Should wakeup mac if driver wants it to run on HT.
+		 */
+
+		if (wlc_hw->clk) {
+			if (mode == BCMA_CLKMODE_FAST) {
+				bcma_set32(wlc_hw->d11core,
+					   D11REGOFFS(clk_ctl_st),
+					   CCS_FORCEHT);
+
+				udelay(64);
+
+				SPINWAIT(
+				    ((bcma_read32(wlc_hw->d11core,
+				      D11REGOFFS(clk_ctl_st)) &
+				      CCS_HTAVAIL) == 0),
+				      PMU_MAX_TRANSITION_DLY);
+				WARN_ON(!(bcma_read32(wlc_hw->d11core,
+					D11REGOFFS(clk_ctl_st)) &
+					CCS_HTAVAIL));
+			} else {
+				if ((ai_get_pmurev(wlc_hw->sih) == 0) &&
+				    (bcma_read32(wlc_hw->d11core,
+					D11REGOFFS(clk_ctl_st)) &
+					(CCS_FORCEHT | CCS_HTAREQ)))
+					SPINWAIT(
+					    ((bcma_read32(wlc_hw->d11core,
+					      offsetof(struct d11regs,
+						       clk_ctl_st)) &
+					      CCS_HTAVAIL) == 0),
+					      PMU_MAX_TRANSITION_DLY);
+				bcma_mask32(wlc_hw->d11core,
+					D11REGOFFS(clk_ctl_st),
+					~CCS_FORCEHT);
+			}
+		}
+		wlc_hw->forcefastclk = (mode == BCMA_CLKMODE_FAST);
+	} else {
+
+		/* old chips w/o PMU, force HT through cc,
+		 * then use FCA to verify mac is running fast clock
+		 */
+
+		wlc_hw->forcefastclk = ai_clkctl_cc(wlc_hw->sih, mode);
+
+		/* check fast clock is available (if core is not in reset) */
+		if (wlc_hw->forcefastclk && wlc_hw->clk)
+			WARN_ON(!(bcma_aread32(wlc_hw->d11core, BCMA_IOST) &
+				  SISF_FCLKA));
+
+		/*
+		 * keep the ucode wake bit on if forcefastclk is on since we
+		 * do not want ucode to put us back to slow clock when it dozes
+		 * for PM mode. Code below matches the wake override bit with
+		 * current forcefastclk state. Only setting bit in wake_override
+		 * instead of waking ucode immediately since old code had this
+		 * behavior. Older code set wlc->forcefastclk but only had the
+		 * wake happen if the wakup_ucode work (protected by an up
+		 * check) was executed just below.
+		 */
+		if (wlc_hw->forcefastclk)
+			mboolset(wlc_hw->wake_override,
+				 BRCMS_WAKE_OVERRIDE_FORCEFAST);
+		else
+			mboolclr(wlc_hw->wake_override,
+				 BRCMS_WAKE_OVERRIDE_FORCEFAST);
+	}
+}
+
+/* set or clear ucode host flag bits
+ * it has an optimization for no-change write
+ * it only writes through shared memory when the core has clock;
+ * pre-CLK changes should use wlc_write_mhf to get around the optimization
+ *
+ *
+ * bands values are: BRCM_BAND_AUTO <--- Current band only
+ *                   BRCM_BAND_5G   <--- 5G band only
+ *                   BRCM_BAND_2G   <--- 2G band only
+ *                   BRCM_BAND_ALL  <--- All bands
+ */
+void
+brcms_b_mhf(struct brcms_hardware *wlc_hw, u8 idx, u16 mask, u16 val,
+	     int bands)
+{
+	u16 save;
+	u16 addr[MHFMAX] = {
+		M_HOST_FLAGS1, M_HOST_FLAGS2, M_HOST_FLAGS3, M_HOST_FLAGS4,
+		M_HOST_FLAGS5
+	};
+	struct brcms_hw_band *band;
+
+	if ((val & ~mask) || idx >= MHFMAX)
+		return; /* error condition */
+
+	switch (bands) {
+		/* Current band only or all bands,
+		 * then set the band to current band
+		 */
+	case BRCM_BAND_AUTO:
+	case BRCM_BAND_ALL:
+		band = wlc_hw->band;
+		break;
+	case BRCM_BAND_5G:
+		band = wlc_hw->bandstate[BAND_5G_INDEX];
+		break;
+	case BRCM_BAND_2G:
+		band = wlc_hw->bandstate[BAND_2G_INDEX];
+		break;
+	default:
+		band = NULL;	/* error condition */
+	}
+
+	if (band) {
+		save = band->mhfs[idx];
+		band->mhfs[idx] = (band->mhfs[idx] & ~mask) | val;
+
+		/* optimization: only write through if changed, and
+		 * changed band is the current band
+		 */
+		if (wlc_hw->clk && (band->mhfs[idx] != save)
+		    && (band == wlc_hw->band))
+			brcms_b_write_shm(wlc_hw, addr[idx],
+					   (u16) band->mhfs[idx]);
+	}
+
+	if (bands == BRCM_BAND_ALL) {
+		wlc_hw->bandstate[0]->mhfs[idx] =
+		    (wlc_hw->bandstate[0]->mhfs[idx] & ~mask) | val;
+		wlc_hw->bandstate[1]->mhfs[idx] =
+		    (wlc_hw->bandstate[1]->mhfs[idx] & ~mask) | val;
+	}
+}
+
+/* set the maccontrol register to desired reset state and
+ * initialize the sw cache of the register
+ */
+static void brcms_c_mctrl_reset(struct brcms_hardware *wlc_hw)
+{
+	/* IHR accesses are always enabled, PSM disabled, HPS off and WAKE on */
+	wlc_hw->maccontrol = 0;
+	wlc_hw->suspended_fifos = 0;
+	wlc_hw->wake_override = 0;
+	wlc_hw->mute_override = 0;
+	brcms_b_mctrl(wlc_hw, ~0, MCTL_IHR_EN | MCTL_WAKE);
+}
+
+/*
+ * write the software state of maccontrol and
+ * overrides to the maccontrol register
+ */
+static void brcms_c_mctrl_write(struct brcms_hardware *wlc_hw)
+{
+	u32 maccontrol = wlc_hw->maccontrol;
+
+	/* OR in the wake bit if overridden */
+	if (wlc_hw->wake_override)
+		maccontrol |= MCTL_WAKE;
+
+	/* set AP and INFRA bits for mute if needed */
+	if (wlc_hw->mute_override) {
+		maccontrol &= ~(MCTL_AP);
+		maccontrol |= MCTL_INFRA;
+	}
+
+	bcma_write32(wlc_hw->d11core, D11REGOFFS(maccontrol),
+		     maccontrol);
+}
+
+/* set or clear maccontrol bits */
+void brcms_b_mctrl(struct brcms_hardware *wlc_hw, u32 mask, u32 val)
+{
+	u32 maccontrol;
+	u32 new_maccontrol;
+
+	if (val & ~mask)
+		return; /* error condition */
+	maccontrol = wlc_hw->maccontrol;
+	new_maccontrol = (maccontrol & ~mask) | val;
+
+	/* if the new maccontrol value is the same as the old, nothing to do */
+	if (new_maccontrol == maccontrol)
+		return;
+
+	/* something changed, cache the new value */
+	wlc_hw->maccontrol = new_maccontrol;
+
+	/* write the new values with overrides applied */
+	brcms_c_mctrl_write(wlc_hw);
+}
+
+void brcms_c_ucode_wake_override_set(struct brcms_hardware *wlc_hw,
+				 u32 override_bit)
+{
+	if (wlc_hw->wake_override || (wlc_hw->maccontrol & MCTL_WAKE)) {
+		mboolset(wlc_hw->wake_override, override_bit);
+		return;
+	}
+
+	mboolset(wlc_hw->wake_override, override_bit);
+
+	brcms_c_mctrl_write(wlc_hw);
+	brcms_b_wait_for_wake(wlc_hw);
+}
+
+void brcms_c_ucode_wake_override_clear(struct brcms_hardware *wlc_hw,
+				   u32 override_bit)
+{
+	mboolclr(wlc_hw->wake_override, override_bit);
+
+	if (wlc_hw->wake_override || (wlc_hw->maccontrol & MCTL_WAKE))
+		return;
+
+	brcms_c_mctrl_write(wlc_hw);
+}
+
+/* When driver needs ucode to stop beaconing, it has to make sure that
+ * MCTL_AP is clear and MCTL_INFRA is set
+ * Mode           MCTL_AP        MCTL_INFRA
+ * AP                1              1
+ * STA               0              1 <--- This will ensure no beacons
+ * IBSS              0              0
+ */
+static void brcms_c_ucode_mute_override_set(struct brcms_hardware *wlc_hw)
+{
+	wlc_hw->mute_override = 1;
+
+	/* if maccontrol already has AP == 0 and INFRA == 1 without this
+	 * override, then there is no change to write
+	 */
+	if ((wlc_hw->maccontrol & (MCTL_AP | MCTL_INFRA)) == MCTL_INFRA)
+		return;
+
+	brcms_c_mctrl_write(wlc_hw);
+}
+
+/* Clear the override on AP and INFRA bits */
+static void brcms_c_ucode_mute_override_clear(struct brcms_hardware *wlc_hw)
+{
+	if (wlc_hw->mute_override == 0)
+		return;
+
+	wlc_hw->mute_override = 0;
+
+	/* if maccontrol already has AP == 0 and INFRA == 1 without this
+	 * override, then there is no change to write
+	 */
+	if ((wlc_hw->maccontrol & (MCTL_AP | MCTL_INFRA)) == MCTL_INFRA)
+		return;
+
+	brcms_c_mctrl_write(wlc_hw);
+}
+
+/*
+ * Write a MAC address to the given match reg offset in the RXE match engine.
+ */
+static void
+brcms_b_set_addrmatch(struct brcms_hardware *wlc_hw, int match_reg_offset,
+		       const u8 *addr)
+{
+	struct bcma_device *core = wlc_hw->d11core;
+	u16 mac_l;
+	u16 mac_m;
+	u16 mac_h;
+
+	brcms_dbg_rx(core, "wl%d: brcms_b_set_addrmatch\n", wlc_hw->unit);
+
+	mac_l = addr[0] | (addr[1] << 8);
+	mac_m = addr[2] | (addr[3] << 8);
+	mac_h = addr[4] | (addr[5] << 8);
+
+	/* enter the MAC addr into the RXE match registers */
+	bcma_write16(core, D11REGOFFS(rcm_ctl),
+		     RCM_INC_DATA | match_reg_offset);
+	bcma_write16(core, D11REGOFFS(rcm_mat_data), mac_l);
+	bcma_write16(core, D11REGOFFS(rcm_mat_data), mac_m);
+	bcma_write16(core, D11REGOFFS(rcm_mat_data), mac_h);
+}
+
+void
+brcms_b_write_template_ram(struct brcms_hardware *wlc_hw, int offset, int len,
+			    void *buf)
+{
+	struct bcma_device *core = wlc_hw->d11core;
+	u32 word;
+	__le32 word_le;
+	__be32 word_be;
+	bool be_bit;
+	brcms_dbg_info(core, "wl%d\n", wlc_hw->unit);
+
+	bcma_write32(core, D11REGOFFS(tplatewrptr), offset);
+
+	/* if MCTL_BIGEND bit set in mac control register,
+	 * the chip swaps data in fifo, as well as data in
+	 * template ram
+	 */
+	be_bit = (bcma_read32(core, D11REGOFFS(maccontrol)) & MCTL_BIGEND) != 0;
+
+	while (len > 0) {
+		memcpy(&word, buf, sizeof(u32));
+
+		if (be_bit) {
+			word_be = cpu_to_be32(word);
+			word = *(u32 *)&word_be;
+		} else {
+			word_le = cpu_to_le32(word);
+			word = *(u32 *)&word_le;
+		}
+
+		bcma_write32(core, D11REGOFFS(tplatewrdata), word);
+
+		buf = (u8 *) buf + sizeof(u32);
+		len -= sizeof(u32);
+	}
+}
+
+static void brcms_b_set_cwmin(struct brcms_hardware *wlc_hw, u16 newmin)
+{
+	wlc_hw->band->CWmin = newmin;
+
+	bcma_write32(wlc_hw->d11core, D11REGOFFS(objaddr),
+		     OBJADDR_SCR_SEL | S_DOT11_CWMIN);
+	(void)bcma_read32(wlc_hw->d11core, D11REGOFFS(objaddr));
+	bcma_write32(wlc_hw->d11core, D11REGOFFS(objdata), newmin);
+}
+
+static void brcms_b_set_cwmax(struct brcms_hardware *wlc_hw, u16 newmax)
+{
+	wlc_hw->band->CWmax = newmax;
+
+	bcma_write32(wlc_hw->d11core, D11REGOFFS(objaddr),
+		     OBJADDR_SCR_SEL | S_DOT11_CWMAX);
+	(void)bcma_read32(wlc_hw->d11core, D11REGOFFS(objaddr));
+	bcma_write32(wlc_hw->d11core, D11REGOFFS(objdata), newmax);
+}
+
+void brcms_b_bw_set(struct brcms_hardware *wlc_hw, u16 bw)
+{
+	bool fastclk;
+
+	/* request FAST clock if not on */
+	fastclk = wlc_hw->forcefastclk;
+	if (!fastclk)
+		brcms_b_clkctl_clk(wlc_hw, BCMA_CLKMODE_FAST);
+
+	wlc_phy_bw_state_set(wlc_hw->band->pi, bw);
+
+	brcms_b_phy_reset(wlc_hw);
+	wlc_phy_init(wlc_hw->band->pi, wlc_phy_chanspec_get(wlc_hw->band->pi));
+
+	/* restore the clk */
+	if (!fastclk)
+		brcms_b_clkctl_clk(wlc_hw, BCMA_CLKMODE_DYNAMIC);
+}
+
+static void brcms_b_upd_synthpu(struct brcms_hardware *wlc_hw)
+{
+	u16 v;
+	struct brcms_c_info *wlc = wlc_hw->wlc;
+	/* update SYNTHPU_DLY */
+
+	if (BRCMS_ISLCNPHY(wlc->band))
+		v = SYNTHPU_DLY_LPPHY_US;
+	else if (BRCMS_ISNPHY(wlc->band) && (NREV_GE(wlc->band->phyrev, 3)))
+		v = SYNTHPU_DLY_NPHY_US;
+	else
+		v = SYNTHPU_DLY_BPHY_US;
+
+	brcms_b_write_shm(wlc_hw, M_SYNTHPU_DLY, v);
+}
+
+static void brcms_c_ucode_txant_set(struct brcms_hardware *wlc_hw)
+{
+	u16 phyctl;
+	u16 phytxant = wlc_hw->bmac_phytxant;
+	u16 mask = PHY_TXC_ANT_MASK;
+
+	/* set the Probe Response frame phy control word */
+	phyctl = brcms_b_read_shm(wlc_hw, M_CTXPRS_BLK + C_CTX_PCTLWD_POS);
+	phyctl = (phyctl & ~mask) | phytxant;
+	brcms_b_write_shm(wlc_hw, M_CTXPRS_BLK + C_CTX_PCTLWD_POS, phyctl);
+
+	/* set the Response (ACK/CTS) frame phy control word */
+	phyctl = brcms_b_read_shm(wlc_hw, M_RSP_PCTLWD);
+	phyctl = (phyctl & ~mask) | phytxant;
+	brcms_b_write_shm(wlc_hw, M_RSP_PCTLWD, phyctl);
+}
+
+static u16 brcms_b_ofdm_ratetable_offset(struct brcms_hardware *wlc_hw,
+					 u8 rate)
+{
+	uint i;
+	u8 plcp_rate = 0;
+	struct plcp_signal_rate_lookup {
+		u8 rate;
+		u8 signal_rate;
+	};
+	/* OFDM RATE sub-field of PLCP SIGNAL field, per 802.11 sec 17.3.4.1 */
+	const struct plcp_signal_rate_lookup rate_lookup[] = {
+		{BRCM_RATE_6M, 0xB},
+		{BRCM_RATE_9M, 0xF},
+		{BRCM_RATE_12M, 0xA},
+		{BRCM_RATE_18M, 0xE},
+		{BRCM_RATE_24M, 0x9},
+		{BRCM_RATE_36M, 0xD},
+		{BRCM_RATE_48M, 0x8},
+		{BRCM_RATE_54M, 0xC}
+	};
+
+	for (i = 0; i < ARRAY_SIZE(rate_lookup); i++) {
+		if (rate == rate_lookup[i].rate) {
+			plcp_rate = rate_lookup[i].signal_rate;
+			break;
+		}
+	}
+
+	/* Find the SHM pointer to the rate table entry by looking in the
+	 * Direct-map Table
+	 */
+	return 2 * brcms_b_read_shm(wlc_hw, M_RT_DIRMAP_A + (plcp_rate * 2));
+}
+
+static void brcms_upd_ofdm_pctl1_table(struct brcms_hardware *wlc_hw)
+{
+	u8 rate;
+	u8 rates[8] = {
+		BRCM_RATE_6M, BRCM_RATE_9M, BRCM_RATE_12M, BRCM_RATE_18M,
+		BRCM_RATE_24M, BRCM_RATE_36M, BRCM_RATE_48M, BRCM_RATE_54M
+	};
+	u16 entry_ptr;
+	u16 pctl1;
+	uint i;
+
+	if (!BRCMS_PHY_11N_CAP(wlc_hw->band))
+		return;
+
+	/* walk the phy rate table and update the entries */
+	for (i = 0; i < ARRAY_SIZE(rates); i++) {
+		rate = rates[i];
+
+		entry_ptr = brcms_b_ofdm_ratetable_offset(wlc_hw, rate);
+
+		/* read the SHM Rate Table entry OFDM PCTL1 values */
+		pctl1 =
+		    brcms_b_read_shm(wlc_hw, entry_ptr + M_RT_OFDM_PCTL1_POS);
+
+		/* modify the value */
+		pctl1 &= ~PHY_TXC1_MODE_MASK;
+		pctl1 |= (wlc_hw->hw_stf_ss_opmode << PHY_TXC1_MODE_SHIFT);
+
+		/* Update the SHM Rate Table entry OFDM PCTL1 values */
+		brcms_b_write_shm(wlc_hw, entry_ptr + M_RT_OFDM_PCTL1_POS,
+				   pctl1);
+	}
+}
+
+/* band-specific init */
+static void brcms_b_bsinit(struct brcms_c_info *wlc, u16 chanspec)
+{
+	struct brcms_hardware *wlc_hw = wlc->hw;
+
+	brcms_dbg_mac80211(wlc_hw->d11core, "wl%d: bandunit %d\n", wlc_hw->unit,
+			   wlc_hw->band->bandunit);
+
+	brcms_c_ucode_bsinit(wlc_hw);
+
+	wlc_phy_init(wlc_hw->band->pi, chanspec);
+
+	brcms_c_ucode_txant_set(wlc_hw);
+
+	/*
+	 * cwmin is band-specific, update hardware
+	 * with value for current band
+	 */
+	brcms_b_set_cwmin(wlc_hw, wlc_hw->band->CWmin);
+	brcms_b_set_cwmax(wlc_hw, wlc_hw->band->CWmax);
+
+	brcms_b_update_slot_timing(wlc_hw,
+				   wlc_hw->band->bandtype == BRCM_BAND_5G ?
+				   true : wlc_hw->shortslot);
+
+	/* write phytype and phyvers */
+	brcms_b_write_shm(wlc_hw, M_PHYTYPE, (u16) wlc_hw->band->phytype);
+	brcms_b_write_shm(wlc_hw, M_PHYVER, (u16) wlc_hw->band->phyrev);
+
+	/*
+	 * initialize the txphyctl1 rate table since
+	 * shmem is shared between bands
+	 */
+	brcms_upd_ofdm_pctl1_table(wlc_hw);
+
+	brcms_b_upd_synthpu(wlc_hw);
+}
+
+/* Perform a soft reset of the PHY PLL */
+void brcms_b_core_phypll_reset(struct brcms_hardware *wlc_hw)
+{
+	ai_cc_reg(wlc_hw->sih, offsetof(struct chipcregs, chipcontrol_addr),
+		  ~0, 0);
+	udelay(1);
+	ai_cc_reg(wlc_hw->sih, offsetof(struct chipcregs, chipcontrol_data),
+		  0x4, 0);
+	udelay(1);
+	ai_cc_reg(wlc_hw->sih, offsetof(struct chipcregs, chipcontrol_data),
+		  0x4, 4);
+	udelay(1);
+	ai_cc_reg(wlc_hw->sih, offsetof(struct chipcregs, chipcontrol_data),
+		  0x4, 0);
+	udelay(1);
+}
+
+/* light way to turn on phy clock without reset for NPHY only
+ *  refer to brcms_b_core_phy_clk for full version
+ */
+void brcms_b_phyclk_fgc(struct brcms_hardware *wlc_hw, bool clk)
+{
+	/* support(necessary for NPHY and HYPHY) only */
+	if (!BRCMS_ISNPHY(wlc_hw->band))
+		return;
+
+	if (ON == clk)
+		brcms_b_core_ioctl(wlc_hw, SICF_FGC, SICF_FGC);
+	else
+		brcms_b_core_ioctl(wlc_hw, SICF_FGC, 0);
+
+}
+
+void brcms_b_macphyclk_set(struct brcms_hardware *wlc_hw, bool clk)
+{
+	if (ON == clk)
+		brcms_b_core_ioctl(wlc_hw, SICF_MPCLKE, SICF_MPCLKE);
+	else
+		brcms_b_core_ioctl(wlc_hw, SICF_MPCLKE, 0);
+}
+
+void brcms_b_phy_reset(struct brcms_hardware *wlc_hw)
+{
+	struct brcms_phy_pub *pih = wlc_hw->band->pi;
+	u32 phy_bw_clkbits;
+	bool phy_in_reset = false;
+
+	brcms_dbg_info(wlc_hw->d11core, "wl%d: reset phy\n", wlc_hw->unit);
+
+	if (pih == NULL)
+		return;
+
+	phy_bw_clkbits = wlc_phy_clk_bwbits(wlc_hw->band->pi);
+
+	/* Specific reset sequence required for NPHY rev 3 and 4 */
+	if (BRCMS_ISNPHY(wlc_hw->band) && NREV_GE(wlc_hw->band->phyrev, 3) &&
+	    NREV_LE(wlc_hw->band->phyrev, 4)) {
+		/* Set the PHY bandwidth */
+		brcms_b_core_ioctl(wlc_hw, SICF_BWMASK, phy_bw_clkbits);
+
+		udelay(1);
+
+		/* Perform a soft reset of the PHY PLL */
+		brcms_b_core_phypll_reset(wlc_hw);
+
+		/* reset the PHY */
+		brcms_b_core_ioctl(wlc_hw, (SICF_PRST | SICF_PCLKE),
+				   (SICF_PRST | SICF_PCLKE));
+		phy_in_reset = true;
+	} else {
+		brcms_b_core_ioctl(wlc_hw,
+				   (SICF_PRST | SICF_PCLKE | SICF_BWMASK),
+				   (SICF_PRST | SICF_PCLKE | phy_bw_clkbits));
+	}
+
+	udelay(2);
+	brcms_b_core_phy_clk(wlc_hw, ON);
+
+	if (pih)
+		wlc_phy_anacore(pih, ON);
+}
+
+/* switch to and initialize new band */
+static void brcms_b_setband(struct brcms_hardware *wlc_hw, uint bandunit,
+			    u16 chanspec) {
+	struct brcms_c_info *wlc = wlc_hw->wlc;
+	u32 macintmask;
+
+	/* Enable the d11 core before accessing it */
+	if (!bcma_core_is_enabled(wlc_hw->d11core)) {
+		bcma_core_enable(wlc_hw->d11core, 0);
+		brcms_c_mctrl_reset(wlc_hw);
+	}
+
+	macintmask = brcms_c_setband_inact(wlc, bandunit);
+
+	if (!wlc_hw->up)
+		return;
+
+	brcms_b_core_phy_clk(wlc_hw, ON);
+
+	/* band-specific initializations */
+	brcms_b_bsinit(wlc, chanspec);
+
+	/*
+	 * If there are any pending software interrupt bits,
+	 * then replace these with a harmless nonzero value
+	 * so brcms_c_dpc() will re-enable interrupts when done.
+	 */
+	if (wlc->macintstatus)
+		wlc->macintstatus = MI_DMAINT;
+
+	/* restore macintmask */
+	brcms_intrsrestore(wlc->wl, macintmask);
+
+	/* ucode should still be suspended.. */
+	WARN_ON((bcma_read32(wlc_hw->d11core, D11REGOFFS(maccontrol)) &
+		 MCTL_EN_MAC) != 0);
+}
+
+static bool brcms_c_isgoodchip(struct brcms_hardware *wlc_hw)
+{
+
+	/* reject unsupported corerev */
+	if (!CONF_HAS(D11CONF, wlc_hw->corerev)) {
+		wiphy_err(wlc_hw->wlc->wiphy, "unsupported core rev %d\n",
+			  wlc_hw->corerev);
+		return false;
+	}
+
+	return true;
+}
+
+/* Validate some board info parameters */
+static bool brcms_c_validboardtype(struct brcms_hardware *wlc_hw)
+{
+	uint boardrev = wlc_hw->boardrev;
+
+	/* 4 bits each for board type, major, minor, and tiny version */
+	uint brt = (boardrev & 0xf000) >> 12;
+	uint b0 = (boardrev & 0xf00) >> 8;
+	uint b1 = (boardrev & 0xf0) >> 4;
+	uint b2 = boardrev & 0xf;
+
+	/* voards from other vendors are always considered valid */
+	if (ai_get_boardvendor(wlc_hw->sih) != PCI_VENDOR_ID_BROADCOM)
+		return true;
+
+	/* do some boardrev sanity checks when boardvendor is Broadcom */
+	if (boardrev == 0)
+		return false;
+
+	if (boardrev <= 0xff)
+		return true;
+
+	if ((brt > 2) || (brt == 0) || (b0 > 9) || (b0 == 0) || (b1 > 9)
+		|| (b2 > 9))
+		return false;
+
+	return true;
+}
+
+static void brcms_c_get_macaddr(struct brcms_hardware *wlc_hw, u8 etheraddr[ETH_ALEN])
+{
+	struct ssb_sprom *sprom = &wlc_hw->d11core->bus->sprom;
+
+	/* If macaddr exists, use it (Sromrev4, CIS, ...). */
+	if (!is_zero_ether_addr(sprom->il0mac)) {
+		memcpy(etheraddr, sprom->il0mac, ETH_ALEN);
+		return;
+	}
+
+	if (wlc_hw->_nbands > 1)
+		memcpy(etheraddr, sprom->et1mac, ETH_ALEN);
+	else
+		memcpy(etheraddr, sprom->il0mac, ETH_ALEN);
+}
+
+/* power both the pll and external oscillator on/off */
+static void brcms_b_xtal(struct brcms_hardware *wlc_hw, bool want)
+{
+	brcms_dbg_info(wlc_hw->d11core, "wl%d: want %d\n", wlc_hw->unit, want);
+
+	/*
+	 * dont power down if plldown is false or
+	 * we must poll hw radio disable
+	 */
+	if (!want && wlc_hw->pllreq)
+		return;
+
+	wlc_hw->sbclk = want;
+	if (!wlc_hw->sbclk) {
+		wlc_hw->clk = false;
+		if (wlc_hw->band && wlc_hw->band->pi)
+			wlc_phy_hw_clk_state_upd(wlc_hw->band->pi, false);
+	}
+}
+
+/*
+ * Return true if radio is disabled, otherwise false.
+ * hw radio disable signal is an external pin, users activate it asynchronously
+ * this function could be called when driver is down and w/o clock
+ * it operates on different registers depending on corerev and boardflag.
+ */
+static bool brcms_b_radio_read_hwdisabled(struct brcms_hardware *wlc_hw)
+{
+	bool v, clk, xtal;
+	u32 flags = 0;
+
+	xtal = wlc_hw->sbclk;
+	if (!xtal)
+		brcms_b_xtal(wlc_hw, ON);
+
+	/* may need to take core out of reset first */
+	clk = wlc_hw->clk;
+	if (!clk) {
+		/*
+		 * mac no longer enables phyclk automatically when driver
+		 * accesses phyreg throughput mac. This can be skipped since
+		 * only mac reg is accessed below
+		 */
+		if (D11REV_GE(wlc_hw->corerev, 18))
+			flags |= SICF_PCLKE;
+
+		/*
+		 * TODO: test suspend/resume
+		 *
+		 * AI chip doesn't restore bar0win2 on
+		 * hibernation/resume, need sw fixup
+		 */
+
+		bcma_core_enable(wlc_hw->d11core, flags);
+		brcms_c_mctrl_reset(wlc_hw);
+	}
+
+	v = ((bcma_read32(wlc_hw->d11core,
+			  D11REGOFFS(phydebug)) & PDBG_RFD) != 0);
+
+	/* put core back into reset */
+	if (!clk)
+		bcma_core_disable(wlc_hw->d11core, 0);
+
+	if (!xtal)
+		brcms_b_xtal(wlc_hw, OFF);
+
+	return v;
+}
+
+static bool wlc_dma_rxreset(struct brcms_hardware *wlc_hw, uint fifo)
+{
+	struct dma_pub *di = wlc_hw->di[fifo];
+	return dma_rxreset(di);
+}
+
+/* d11 core reset
+ *   ensure fask clock during reset
+ *   reset dma
+ *   reset d11(out of reset)
+ *   reset phy(out of reset)
+ *   clear software macintstatus for fresh new start
+ * one testing hack wlc_hw->noreset will bypass the d11/phy reset
+ */
+void brcms_b_corereset(struct brcms_hardware *wlc_hw, u32 flags)
+{
+	uint i;
+	bool fastclk;
+
+	if (flags == BRCMS_USE_COREFLAGS)
+		flags = (wlc_hw->band->pi ? wlc_hw->band->core_flags : 0);
+
+	brcms_dbg_info(wlc_hw->d11core, "wl%d: core reset\n", wlc_hw->unit);
+
+	/* request FAST clock if not on  */
+	fastclk = wlc_hw->forcefastclk;
+	if (!fastclk)
+		brcms_b_clkctl_clk(wlc_hw, BCMA_CLKMODE_FAST);
+
+	/* reset the dma engines except first time thru */
+	if (bcma_core_is_enabled(wlc_hw->d11core)) {
+		for (i = 0; i < NFIFO; i++)
+			if ((wlc_hw->di[i]) && (!dma_txreset(wlc_hw->di[i])))
+				brcms_err(wlc_hw->d11core, "wl%d: %s: "
+					  "dma_txreset[%d]: cannot stop dma\n",
+					   wlc_hw->unit, __func__, i);
+
+		if ((wlc_hw->di[RX_FIFO])
+		    && (!wlc_dma_rxreset(wlc_hw, RX_FIFO)))
+			brcms_err(wlc_hw->d11core, "wl%d: %s: dma_rxreset"
+				  "[%d]: cannot stop dma\n",
+				  wlc_hw->unit, __func__, RX_FIFO);
+	}
+	/* if noreset, just stop the psm and return */
+	if (wlc_hw->noreset) {
+		wlc_hw->wlc->macintstatus = 0;	/* skip wl_dpc after down */
+		brcms_b_mctrl(wlc_hw, MCTL_PSM_RUN | MCTL_EN_MAC, 0);
+		return;
+	}
+
+	/*
+	 * mac no longer enables phyclk automatically when driver accesses
+	 * phyreg throughput mac, AND phy_reset is skipped at early stage when
+	 * band->pi is invalid. need to enable PHY CLK
+	 */
+	if (D11REV_GE(wlc_hw->corerev, 18))
+		flags |= SICF_PCLKE;
+
+	/*
+	 * reset the core
+	 * In chips with PMU, the fastclk request goes through d11 core
+	 * reg 0x1e0, which is cleared by the core_reset. have to re-request it.
+	 *
+	 * This adds some delay and we can optimize it by also requesting
+	 * fastclk through chipcommon during this period if necessary. But
+	 * that has to work coordinate with other driver like mips/arm since
+	 * they may touch chipcommon as well.
+	 */
+	wlc_hw->clk = false;
+	bcma_core_enable(wlc_hw->d11core, flags);
+	wlc_hw->clk = true;
+	if (wlc_hw->band && wlc_hw->band->pi)
+		wlc_phy_hw_clk_state_upd(wlc_hw->band->pi, true);
+
+	brcms_c_mctrl_reset(wlc_hw);
+
+	if (ai_get_cccaps(wlc_hw->sih) & CC_CAP_PMU)
+		brcms_b_clkctl_clk(wlc_hw, BCMA_CLKMODE_FAST);
+
+	brcms_b_phy_reset(wlc_hw);
+
+	/* turn on PHY_PLL */
+	brcms_b_core_phypll_ctl(wlc_hw, true);
+
+	/* clear sw intstatus */
+	wlc_hw->wlc->macintstatus = 0;
+
+	/* restore the clk setting */
+	if (!fastclk)
+		brcms_b_clkctl_clk(wlc_hw, BCMA_CLKMODE_DYNAMIC);
+}
+
+/* txfifo sizes needs to be modified(increased) since the newer cores
+ * have more memory.
+ */
+static void brcms_b_corerev_fifofixup(struct brcms_hardware *wlc_hw)
+{
+	struct bcma_device *core = wlc_hw->d11core;
+	u16 fifo_nu;
+	u16 txfifo_startblk = TXFIFO_START_BLK, txfifo_endblk;
+	u16 txfifo_def, txfifo_def1;
+	u16 txfifo_cmd;
+
+	/* tx fifos start at TXFIFO_START_BLK from the Base address */
+	txfifo_startblk = TXFIFO_START_BLK;
+
+	/* sequence of operations:  reset fifo, set fifo size, reset fifo */
+	for (fifo_nu = 0; fifo_nu < NFIFO; fifo_nu++) {
+
+		txfifo_endblk = txfifo_startblk + wlc_hw->xmtfifo_sz[fifo_nu];
+		txfifo_def = (txfifo_startblk & 0xff) |
+		    (((txfifo_endblk - 1) & 0xff) << TXFIFO_FIFOTOP_SHIFT);
+		txfifo_def1 = ((txfifo_startblk >> 8) & 0x1) |
+		    ((((txfifo_endblk -
+			1) >> 8) & 0x1) << TXFIFO_FIFOTOP_SHIFT);
+		txfifo_cmd =
+		    TXFIFOCMD_RESET_MASK | (fifo_nu << TXFIFOCMD_FIFOSEL_SHIFT);
+
+		bcma_write16(core, D11REGOFFS(xmtfifocmd), txfifo_cmd);
+		bcma_write16(core, D11REGOFFS(xmtfifodef), txfifo_def);
+		bcma_write16(core, D11REGOFFS(xmtfifodef1), txfifo_def1);
+
+		bcma_write16(core, D11REGOFFS(xmtfifocmd), txfifo_cmd);
+
+		txfifo_startblk += wlc_hw->xmtfifo_sz[fifo_nu];
+	}
+	/*
+	 * need to propagate to shm location to be in sync since ucode/hw won't
+	 * do this
+	 */
+	brcms_b_write_shm(wlc_hw, M_FIFOSIZE0,
+			   wlc_hw->xmtfifo_sz[TX_AC_BE_FIFO]);
+	brcms_b_write_shm(wlc_hw, M_FIFOSIZE1,
+			   wlc_hw->xmtfifo_sz[TX_AC_VI_FIFO]);
+	brcms_b_write_shm(wlc_hw, M_FIFOSIZE2,
+			   ((wlc_hw->xmtfifo_sz[TX_AC_VO_FIFO] << 8) | wlc_hw->
+			    xmtfifo_sz[TX_AC_BK_FIFO]));
+	brcms_b_write_shm(wlc_hw, M_FIFOSIZE3,
+			   ((wlc_hw->xmtfifo_sz[TX_ATIM_FIFO] << 8) | wlc_hw->
+			    xmtfifo_sz[TX_BCMC_FIFO]));
+}
+
+/* This function is used for changing the tsf frac register
+ * If spur avoidance mode is off, the mac freq will be 80/120/160Mhz
+ * If spur avoidance mode is on1, the mac freq will be 82/123/164Mhz
+ * If spur avoidance mode is on2, the mac freq will be 84/126/168Mhz
+ * HTPHY Formula is 2^26/freq(MHz) e.g.
+ * For spuron2 - 126MHz -> 2^26/126 = 532610.0
+ *  - 532610 = 0x82082 => tsf_clk_frac_h = 0x8, tsf_clk_frac_l = 0x2082
+ * For spuron: 123MHz -> 2^26/123    = 545600.5
+ *  - 545601 = 0x85341 => tsf_clk_frac_h = 0x8, tsf_clk_frac_l = 0x5341
+ * For spur off: 120MHz -> 2^26/120    = 559240.5
+ *  - 559241 = 0x88889 => tsf_clk_frac_h = 0x8, tsf_clk_frac_l = 0x8889
+ */
+
+void brcms_b_switch_macfreq(struct brcms_hardware *wlc_hw, u8 spurmode)
+{
+	struct bcma_device *core = wlc_hw->d11core;
+
+	if ((ai_get_chip_id(wlc_hw->sih) == BCMA_CHIP_ID_BCM43224) ||
+	    (ai_get_chip_id(wlc_hw->sih) == BCMA_CHIP_ID_BCM43225)) {
+		if (spurmode == WL_SPURAVOID_ON2) {	/* 126Mhz */
+			bcma_write16(core, D11REGOFFS(tsf_clk_frac_l), 0x2082);
+			bcma_write16(core, D11REGOFFS(tsf_clk_frac_h), 0x8);
+		} else if (spurmode == WL_SPURAVOID_ON1) {	/* 123Mhz */
+			bcma_write16(core, D11REGOFFS(tsf_clk_frac_l), 0x5341);
+			bcma_write16(core, D11REGOFFS(tsf_clk_frac_h), 0x8);
+		} else {	/* 120Mhz */
+			bcma_write16(core, D11REGOFFS(tsf_clk_frac_l), 0x8889);
+			bcma_write16(core, D11REGOFFS(tsf_clk_frac_h), 0x8);
+		}
+	} else if (BRCMS_ISLCNPHY(wlc_hw->band)) {
+		if (spurmode == WL_SPURAVOID_ON1) {	/* 82Mhz */
+			bcma_write16(core, D11REGOFFS(tsf_clk_frac_l), 0x7CE0);
+			bcma_write16(core, D11REGOFFS(tsf_clk_frac_h), 0xC);
+		} else {	/* 80Mhz */
+			bcma_write16(core, D11REGOFFS(tsf_clk_frac_l), 0xCCCD);
+			bcma_write16(core, D11REGOFFS(tsf_clk_frac_h), 0xC);
+		}
+	}
+}
+
+void brcms_c_start_station(struct brcms_c_info *wlc, u8 *addr)
+{
+	memcpy(wlc->pub->cur_etheraddr, addr, sizeof(wlc->pub->cur_etheraddr));
+	wlc->bsscfg->type = BRCMS_TYPE_STATION;
+}
+
+void brcms_c_start_ap(struct brcms_c_info *wlc, u8 *addr, const u8 *bssid,
+		      u8 *ssid, size_t ssid_len)
+{
+	brcms_c_set_ssid(wlc, ssid, ssid_len);
+
+	memcpy(wlc->pub->cur_etheraddr, addr, sizeof(wlc->pub->cur_etheraddr));
+	memcpy(wlc->bsscfg->BSSID, bssid, sizeof(wlc->bsscfg->BSSID));
+	wlc->bsscfg->type = BRCMS_TYPE_AP;
+
+	brcms_b_mctrl(wlc->hw, MCTL_AP | MCTL_INFRA, MCTL_AP | MCTL_INFRA);
+}
+
+void brcms_c_start_adhoc(struct brcms_c_info *wlc, u8 *addr)
+{
+	memcpy(wlc->pub->cur_etheraddr, addr, sizeof(wlc->pub->cur_etheraddr));
+	wlc->bsscfg->type = BRCMS_TYPE_ADHOC;
+
+	brcms_b_mctrl(wlc->hw, MCTL_AP | MCTL_INFRA, 0);
+}
+
+/* Initialize GPIOs that are controlled by D11 core */
+static void brcms_c_gpio_init(struct brcms_c_info *wlc)
+{
+	struct brcms_hardware *wlc_hw = wlc->hw;
+	u32 gc, gm;
+
+	/* use GPIO select 0 to get all gpio signals from the gpio out reg */
+	brcms_b_mctrl(wlc_hw, MCTL_GPOUT_SEL_MASK, 0);
+
+	/*
+	 * Common GPIO setup:
+	 *      G0 = LED 0 = WLAN Activity
+	 *      G1 = LED 1 = WLAN 2.4 GHz Radio State
+	 *      G2 = LED 2 = WLAN 5 GHz Radio State
+	 *      G4 = radio disable input (HI enabled, LO disabled)
+	 */
+
+	gc = gm = 0;
+
+	/* Allocate GPIOs for mimo antenna diversity feature */
+	if (wlc_hw->antsel_type == ANTSEL_2x3) {
+		/* Enable antenna diversity, use 2x3 mode */
+		brcms_b_mhf(wlc_hw, MHF3, MHF3_ANTSEL_EN,
+			     MHF3_ANTSEL_EN, BRCM_BAND_ALL);
+		brcms_b_mhf(wlc_hw, MHF3, MHF3_ANTSEL_MODE,
+			     MHF3_ANTSEL_MODE, BRCM_BAND_ALL);
+
+		/* init superswitch control */
+		wlc_phy_antsel_init(wlc_hw->band->pi, false);
+
+	} else if (wlc_hw->antsel_type == ANTSEL_2x4) {
+		gm |= gc |= (BOARD_GPIO_12 | BOARD_GPIO_13);
+		/*
+		 * The board itself is powered by these GPIOs
+		 * (when not sending pattern) so set them high
+		 */
+		bcma_set16(wlc_hw->d11core, D11REGOFFS(psm_gpio_oe),
+			   (BOARD_GPIO_12 | BOARD_GPIO_13));
+		bcma_set16(wlc_hw->d11core, D11REGOFFS(psm_gpio_out),
+			   (BOARD_GPIO_12 | BOARD_GPIO_13));
+
+		/* Enable antenna diversity, use 2x4 mode */
+		brcms_b_mhf(wlc_hw, MHF3, MHF3_ANTSEL_EN,
+			     MHF3_ANTSEL_EN, BRCM_BAND_ALL);
+		brcms_b_mhf(wlc_hw, MHF3, MHF3_ANTSEL_MODE, 0,
+			     BRCM_BAND_ALL);
+
+		/* Configure the desired clock to be 4Mhz */
+		brcms_b_write_shm(wlc_hw, M_ANTSEL_CLKDIV,
+				   ANTSEL_CLKDIV_4MHZ);
+	}
+
+	/*
+	 * gpio 9 controls the PA. ucode is responsible
+	 * for wiggling out and oe
+	 */
+	if (wlc_hw->boardflags & BFL_PACTRL)
+		gm |= gc |= BOARD_GPIO_PACTRL;
+
+	/* apply to gpiocontrol register */
+	bcma_chipco_gpio_control(&wlc_hw->d11core->bus->drv_cc, gm, gc);
+}
+
+static void brcms_ucode_write(struct brcms_hardware *wlc_hw,
+			      const __le32 ucode[], const size_t nbytes)
+{
+	struct bcma_device *core = wlc_hw->d11core;
+	uint i;
+	uint count;
+
+	brcms_dbg_info(wlc_hw->d11core, "wl%d\n", wlc_hw->unit);
+
+	count = (nbytes / sizeof(u32));
+
+	bcma_write32(core, D11REGOFFS(objaddr),
+		     OBJADDR_AUTO_INC | OBJADDR_UCM_SEL);
+	(void)bcma_read32(core, D11REGOFFS(objaddr));
+	for (i = 0; i < count; i++)
+		bcma_write32(core, D11REGOFFS(objdata), le32_to_cpu(ucode[i]));
+
+}
+
+static void brcms_ucode_download(struct brcms_hardware *wlc_hw)
+{
+	struct brcms_c_info *wlc;
+	struct brcms_ucode *ucode = &wlc_hw->wlc->wl->ucode;
+
+	wlc = wlc_hw->wlc;
+
+	if (wlc_hw->ucode_loaded)
+		return;
+
+	if (D11REV_IS(wlc_hw->corerev, 17) || D11REV_IS(wlc_hw->corerev, 23)) {
+		if (BRCMS_ISNPHY(wlc_hw->band)) {
+			brcms_ucode_write(wlc_hw, ucode->bcm43xx_16_mimo,
+					  ucode->bcm43xx_16_mimosz);
+			wlc_hw->ucode_loaded = true;
+		} else
+			brcms_err(wlc_hw->d11core,
+				  "%s: wl%d: unsupported phy in corerev %d\n",
+				  __func__, wlc_hw->unit, wlc_hw->corerev);
+	} else if (D11REV_IS(wlc_hw->corerev, 24)) {
+		if (BRCMS_ISLCNPHY(wlc_hw->band)) {
+			brcms_ucode_write(wlc_hw, ucode->bcm43xx_24_lcn,
+					  ucode->bcm43xx_24_lcnsz);
+			wlc_hw->ucode_loaded = true;
+		} else {
+			brcms_err(wlc_hw->d11core,
+				  "%s: wl%d: unsupported phy in corerev %d\n",
+				  __func__, wlc_hw->unit, wlc_hw->corerev);
+		}
+	}
+}
+
+void brcms_b_txant_set(struct brcms_hardware *wlc_hw, u16 phytxant)
+{
+	/* update sw state */
+	wlc_hw->bmac_phytxant = phytxant;
+
+	/* push to ucode if up */
+	if (!wlc_hw->up)
+		return;
+	brcms_c_ucode_txant_set(wlc_hw);
+
+}
+
+u16 brcms_b_get_txant(struct brcms_hardware *wlc_hw)
+{
+	return (u16) wlc_hw->wlc->stf->txant;
+}
+
+void brcms_b_antsel_type_set(struct brcms_hardware *wlc_hw, u8 antsel_type)
+{
+	wlc_hw->antsel_type = antsel_type;
+
+	/* Update the antsel type for phy module to use */
+	wlc_phy_antsel_type_set(wlc_hw->band->pi, antsel_type);
+}
+
+static void brcms_b_fifoerrors(struct brcms_hardware *wlc_hw)
+{
+	bool fatal = false;
+	uint unit;
+	uint intstatus, idx;
+	struct bcma_device *core = wlc_hw->d11core;
+
+	unit = wlc_hw->unit;
+
+	for (idx = 0; idx < NFIFO; idx++) {
+		/* read intstatus register and ignore any non-error bits */
+		intstatus =
+			bcma_read32(core,
+				    D11REGOFFS(intctrlregs[idx].intstatus)) &
+			I_ERRORS;
+		if (!intstatus)
+			continue;
+
+		brcms_dbg_int(core, "wl%d: intstatus%d 0x%x\n",
+			      unit, idx, intstatus);
+
+		if (intstatus & I_RO) {
+			brcms_err(core, "wl%d: fifo %d: receive fifo "
+				  "overflow\n", unit, idx);
+			fatal = true;
+		}
+
+		if (intstatus & I_PC) {
+			brcms_err(core, "wl%d: fifo %d: descriptor error\n",
+				  unit, idx);
+			fatal = true;
+		}
+
+		if (intstatus & I_PD) {
+			brcms_err(core, "wl%d: fifo %d: data error\n", unit,
+				  idx);
+			fatal = true;
+		}
+
+		if (intstatus & I_DE) {
+			brcms_err(core, "wl%d: fifo %d: descriptor protocol "
+				  "error\n", unit, idx);
+			fatal = true;
+		}
+
+		if (intstatus & I_RU)
+			brcms_err(core, "wl%d: fifo %d: receive descriptor "
+				  "underflow\n", idx, unit);
+
+		if (intstatus & I_XU) {
+			brcms_err(core, "wl%d: fifo %d: transmit fifo "
+				  "underflow\n", idx, unit);
+			fatal = true;
+		}
+
+		if (fatal) {
+			brcms_fatal_error(wlc_hw->wlc->wl); /* big hammer */
+			break;
+		} else
+			bcma_write32(core,
+				     D11REGOFFS(intctrlregs[idx].intstatus),
+				     intstatus);
+	}
+}
+
+void brcms_c_intrson(struct brcms_c_info *wlc)
+{
+	struct brcms_hardware *wlc_hw = wlc->hw;
+	wlc->macintmask = wlc->defmacintmask;
+	bcma_write32(wlc_hw->d11core, D11REGOFFS(macintmask), wlc->macintmask);
+}
+
+u32 brcms_c_intrsoff(struct brcms_c_info *wlc)
+{
+	struct brcms_hardware *wlc_hw = wlc->hw;
+	u32 macintmask;
+
+	if (!wlc_hw->clk)
+		return 0;
+
+	macintmask = wlc->macintmask;	/* isr can still happen */
+
+	bcma_write32(wlc_hw->d11core, D11REGOFFS(macintmask), 0);
+	(void)bcma_read32(wlc_hw->d11core, D11REGOFFS(macintmask));
+	udelay(1);		/* ensure int line is no longer driven */
+	wlc->macintmask = 0;
+
+	/* return previous macintmask; resolve race between us and our isr */
+	return wlc->macintstatus ? 0 : macintmask;
+}
+
+void brcms_c_intrsrestore(struct brcms_c_info *wlc, u32 macintmask)
+{
+	struct brcms_hardware *wlc_hw = wlc->hw;
+	if (!wlc_hw->clk)
+		return;
+
+	wlc->macintmask = macintmask;
+	bcma_write32(wlc_hw->d11core, D11REGOFFS(macintmask), wlc->macintmask);
+}
+
+/* assumes that the d11 MAC is enabled */
+static void brcms_b_tx_fifo_suspend(struct brcms_hardware *wlc_hw,
+				    uint tx_fifo)
+{
+	u8 fifo = 1 << tx_fifo;
+
+	/* Two clients of this code, 11h Quiet period and scanning. */
+
+	/* only suspend if not already suspended */
+	if ((wlc_hw->suspended_fifos & fifo) == fifo)
+		return;
+
+	/* force the core awake only if not already */
+	if (wlc_hw->suspended_fifos == 0)
+		brcms_c_ucode_wake_override_set(wlc_hw,
+						BRCMS_WAKE_OVERRIDE_TXFIFO);
+
+	wlc_hw->suspended_fifos |= fifo;
+
+	if (wlc_hw->di[tx_fifo]) {
+		/*
+		 * Suspending AMPDU transmissions in the middle can cause
+		 * underflow which may result in mismatch between ucode and
+		 * driver so suspend the mac before suspending the FIFO
+		 */
+		if (BRCMS_PHY_11N_CAP(wlc_hw->band))
+			brcms_c_suspend_mac_and_wait(wlc_hw->wlc);
+
+		dma_txsuspend(wlc_hw->di[tx_fifo]);
+
+		if (BRCMS_PHY_11N_CAP(wlc_hw->band))
+			brcms_c_enable_mac(wlc_hw->wlc);
+	}
+}
+
+static void brcms_b_tx_fifo_resume(struct brcms_hardware *wlc_hw,
+				   uint tx_fifo)
+{
+	/* BMAC_NOTE: BRCMS_TX_FIFO_ENAB is done in brcms_c_dpc() for DMA case
+	 * but need to be done here for PIO otherwise the watchdog will catch
+	 * the inconsistency and fire
+	 */
+	/* Two clients of this code, 11h Quiet period and scanning. */
+	if (wlc_hw->di[tx_fifo])
+		dma_txresume(wlc_hw->di[tx_fifo]);
+
+	/* allow core to sleep again */
+	if (wlc_hw->suspended_fifos == 0)
+		return;
+	else {
+		wlc_hw->suspended_fifos &= ~(1 << tx_fifo);
+		if (wlc_hw->suspended_fifos == 0)
+			brcms_c_ucode_wake_override_clear(wlc_hw,
+						BRCMS_WAKE_OVERRIDE_TXFIFO);
+	}
+}
+
+/* precondition: requires the mac core to be enabled */
+static void brcms_b_mute(struct brcms_hardware *wlc_hw, bool mute_tx)
+{
+	static const u8 null_ether_addr[ETH_ALEN] = {0, 0, 0, 0, 0, 0};
+	u8 *ethaddr = wlc_hw->wlc->pub->cur_etheraddr;
+
+	if (mute_tx) {
+		/* suspend tx fifos */
+		brcms_b_tx_fifo_suspend(wlc_hw, TX_DATA_FIFO);
+		brcms_b_tx_fifo_suspend(wlc_hw, TX_CTL_FIFO);
+		brcms_b_tx_fifo_suspend(wlc_hw, TX_AC_BK_FIFO);
+		brcms_b_tx_fifo_suspend(wlc_hw, TX_AC_VI_FIFO);
+
+		/* zero the address match register so we do not send ACKs */
+		brcms_b_set_addrmatch(wlc_hw, RCM_MAC_OFFSET, null_ether_addr);
+	} else {
+		/* resume tx fifos */
+		brcms_b_tx_fifo_resume(wlc_hw, TX_DATA_FIFO);
+		brcms_b_tx_fifo_resume(wlc_hw, TX_CTL_FIFO);
+		brcms_b_tx_fifo_resume(wlc_hw, TX_AC_BK_FIFO);
+		brcms_b_tx_fifo_resume(wlc_hw, TX_AC_VI_FIFO);
+
+		/* Restore address */
+		brcms_b_set_addrmatch(wlc_hw, RCM_MAC_OFFSET, ethaddr);
+	}
+
+	wlc_phy_mute_upd(wlc_hw->band->pi, mute_tx, 0);
+
+	if (mute_tx)
+		brcms_c_ucode_mute_override_set(wlc_hw);
+	else
+		brcms_c_ucode_mute_override_clear(wlc_hw);
+}
+
+void
+brcms_c_mute(struct brcms_c_info *wlc, bool mute_tx)
+{
+	brcms_b_mute(wlc->hw, mute_tx);
+}
+
+/*
+ * Read and clear macintmask and macintstatus and intstatus registers.
+ * This routine should be called with interrupts off
+ * Return:
+ *   -1 if brcms_deviceremoved(wlc) evaluates to true;
+ *   0 if the interrupt is not for us, or we are in some special cases;
+ *   device interrupt status bits otherwise.
+ */
+static inline u32 wlc_intstatus(struct brcms_c_info *wlc, bool in_isr)
+{
+	struct brcms_hardware *wlc_hw = wlc->hw;
+	struct bcma_device *core = wlc_hw->d11core;
+	u32 macintstatus, mask;
+
+	/* macintstatus includes a DMA interrupt summary bit */
+	macintstatus = bcma_read32(core, D11REGOFFS(macintstatus));
+	mask = in_isr ? wlc->macintmask : wlc->defmacintmask;
+
+	trace_brcms_macintstatus(&core->dev, in_isr, macintstatus, mask);
+
+	/* detect cardbus removed, in power down(suspend) and in reset */
+	if (brcms_deviceremoved(wlc))
+		return -1;
+
+	/* brcms_deviceremoved() succeeds even when the core is still resetting,
+	 * handle that case here.
+	 */
+	if (macintstatus == 0xffffffff)
+		return 0;
+
+	/* defer unsolicited interrupts */
+	macintstatus &= mask;
+
+	/* if not for us */
+	if (macintstatus == 0)
+		return 0;
+
+	/* turn off the interrupts */
+	bcma_write32(core, D11REGOFFS(macintmask), 0);
+	(void)bcma_read32(core, D11REGOFFS(macintmask));
+	wlc->macintmask = 0;
+
+	/* clear device interrupts */
+	bcma_write32(core, D11REGOFFS(macintstatus), macintstatus);
+
+	/* MI_DMAINT is indication of non-zero intstatus */
+	if (macintstatus & MI_DMAINT)
+		/*
+		 * only fifo interrupt enabled is I_RI in
+		 * RX_FIFO. If MI_DMAINT is set, assume it
+		 * is set and clear the interrupt.
+		 */
+		bcma_write32(core, D11REGOFFS(intctrlregs[RX_FIFO].intstatus),
+			     DEF_RXINTMASK);
+
+	return macintstatus;
+}
+
+/* Update wlc->macintstatus and wlc->intstatus[]. */
+/* Return true if they are updated successfully. false otherwise */
+bool brcms_c_intrsupd(struct brcms_c_info *wlc)
+{
+	u32 macintstatus;
+
+	/* read and clear macintstatus and intstatus registers */
+	macintstatus = wlc_intstatus(wlc, false);
+
+	/* device is removed */
+	if (macintstatus == 0xffffffff)
+		return false;
+
+	/* update interrupt status in software */
+	wlc->macintstatus |= macintstatus;
+
+	return true;
+}
+
+/*
+ * First-level interrupt processing.
+ * Return true if this was our interrupt
+ * and if further brcms_c_dpc() processing is required,
+ * false otherwise.
+ */
+bool brcms_c_isr(struct brcms_c_info *wlc)
+{
+	struct brcms_hardware *wlc_hw = wlc->hw;
+	u32 macintstatus;
+
+	if (!wlc_hw->up || !wlc->macintmask)
+		return false;
+
+	/* read and clear macintstatus and intstatus registers */
+	macintstatus = wlc_intstatus(wlc, true);
+
+	if (macintstatus == 0xffffffff) {
+		brcms_err(wlc_hw->d11core,
+			  "DEVICEREMOVED detected in the ISR code path\n");
+		return false;
+	}
+
+	/* it is not for us */
+	if (macintstatus == 0)
+		return false;
+
+	/* save interrupt status bits */
+	wlc->macintstatus = macintstatus;
+
+	return true;
+
+}
+
+void brcms_c_suspend_mac_and_wait(struct brcms_c_info *wlc)
+{
+	struct brcms_hardware *wlc_hw = wlc->hw;
+	struct bcma_device *core = wlc_hw->d11core;
+	u32 mc, mi;
+
+	brcms_dbg_mac80211(core, "wl%d: bandunit %d\n", wlc_hw->unit,
+			   wlc_hw->band->bandunit);
+
+	/*
+	 * Track overlapping suspend requests
+	 */
+	wlc_hw->mac_suspend_depth++;
+	if (wlc_hw->mac_suspend_depth > 1)
+		return;
+
+	/* force the core awake */
+	brcms_c_ucode_wake_override_set(wlc_hw, BRCMS_WAKE_OVERRIDE_MACSUSPEND);
+
+	mc = bcma_read32(core, D11REGOFFS(maccontrol));
+
+	if (mc == 0xffffffff) {
+		brcms_err(core, "wl%d: %s: dead chip\n", wlc_hw->unit,
+			  __func__);
+		brcms_down(wlc->wl);
+		return;
+	}
+	WARN_ON(mc & MCTL_PSM_JMP_0);
+	WARN_ON(!(mc & MCTL_PSM_RUN));
+	WARN_ON(!(mc & MCTL_EN_MAC));
+
+	mi = bcma_read32(core, D11REGOFFS(macintstatus));
+	if (mi == 0xffffffff) {
+		brcms_err(core, "wl%d: %s: dead chip\n", wlc_hw->unit,
+			  __func__);
+		brcms_down(wlc->wl);
+		return;
+	}
+	WARN_ON(mi & MI_MACSSPNDD);
+
+	brcms_b_mctrl(wlc_hw, MCTL_EN_MAC, 0);
+
+	SPINWAIT(!(bcma_read32(core, D11REGOFFS(macintstatus)) & MI_MACSSPNDD),
+		 BRCMS_MAX_MAC_SUSPEND);
+
+	if (!(bcma_read32(core, D11REGOFFS(macintstatus)) & MI_MACSSPNDD)) {
+		brcms_err(core, "wl%d: wlc_suspend_mac_and_wait: waited %d uS"
+			  " and MI_MACSSPNDD is still not on.\n",
+			  wlc_hw->unit, BRCMS_MAX_MAC_SUSPEND);
+		brcms_err(core, "wl%d: psmdebug 0x%08x, phydebug 0x%08x, "
+			  "psm_brc 0x%04x\n", wlc_hw->unit,
+			  bcma_read32(core, D11REGOFFS(psmdebug)),
+			  bcma_read32(core, D11REGOFFS(phydebug)),
+			  bcma_read16(core, D11REGOFFS(psm_brc)));
+	}
+
+	mc = bcma_read32(core, D11REGOFFS(maccontrol));
+	if (mc == 0xffffffff) {
+		brcms_err(core, "wl%d: %s: dead chip\n", wlc_hw->unit,
+			  __func__);
+		brcms_down(wlc->wl);
+		return;
+	}
+	WARN_ON(mc & MCTL_PSM_JMP_0);
+	WARN_ON(!(mc & MCTL_PSM_RUN));
+	WARN_ON(mc & MCTL_EN_MAC);
+}
+
+void brcms_c_enable_mac(struct brcms_c_info *wlc)
+{
+	struct brcms_hardware *wlc_hw = wlc->hw;
+	struct bcma_device *core = wlc_hw->d11core;
+	u32 mc, mi;
+
+	brcms_dbg_mac80211(core, "wl%d: bandunit %d\n", wlc_hw->unit,
+			   wlc->band->bandunit);
+
+	/*
+	 * Track overlapping suspend requests
+	 */
+	wlc_hw->mac_suspend_depth--;
+	if (wlc_hw->mac_suspend_depth > 0)
+		return;
+
+	mc = bcma_read32(core, D11REGOFFS(maccontrol));
+	WARN_ON(mc & MCTL_PSM_JMP_0);
+	WARN_ON(mc & MCTL_EN_MAC);
+	WARN_ON(!(mc & MCTL_PSM_RUN));
+
+	brcms_b_mctrl(wlc_hw, MCTL_EN_MAC, MCTL_EN_MAC);
+	bcma_write32(core, D11REGOFFS(macintstatus), MI_MACSSPNDD);
+
+	mc = bcma_read32(core, D11REGOFFS(maccontrol));
+	WARN_ON(mc & MCTL_PSM_JMP_0);
+	WARN_ON(!(mc & MCTL_EN_MAC));
+	WARN_ON(!(mc & MCTL_PSM_RUN));
+
+	mi = bcma_read32(core, D11REGOFFS(macintstatus));
+	WARN_ON(mi & MI_MACSSPNDD);
+
+	brcms_c_ucode_wake_override_clear(wlc_hw,
+					  BRCMS_WAKE_OVERRIDE_MACSUSPEND);
+}
+
+void brcms_b_band_stf_ss_set(struct brcms_hardware *wlc_hw, u8 stf_mode)
+{
+	wlc_hw->hw_stf_ss_opmode = stf_mode;
+
+	if (wlc_hw->clk)
+		brcms_upd_ofdm_pctl1_table(wlc_hw);
+}
+
+static bool brcms_b_validate_chip_access(struct brcms_hardware *wlc_hw)
+{
+	struct bcma_device *core = wlc_hw->d11core;
+	u32 w, val;
+	struct wiphy *wiphy = wlc_hw->wlc->wiphy;
+
+	/* Validate dchip register access */
+
+	bcma_write32(core, D11REGOFFS(objaddr), OBJADDR_SHM_SEL | 0);
+	(void)bcma_read32(core, D11REGOFFS(objaddr));
+	w = bcma_read32(core, D11REGOFFS(objdata));
+
+	/* Can we write and read back a 32bit register? */
+	bcma_write32(core, D11REGOFFS(objaddr), OBJADDR_SHM_SEL | 0);
+	(void)bcma_read32(core, D11REGOFFS(objaddr));
+	bcma_write32(core, D11REGOFFS(objdata), (u32) 0xaa5555aa);
+
+	bcma_write32(core, D11REGOFFS(objaddr), OBJADDR_SHM_SEL | 0);
+	(void)bcma_read32(core, D11REGOFFS(objaddr));
+	val = bcma_read32(core, D11REGOFFS(objdata));
+	if (val != (u32) 0xaa5555aa) {
+		wiphy_err(wiphy, "wl%d: validate_chip_access: SHM = 0x%x, "
+			  "expected 0xaa5555aa\n", wlc_hw->unit, val);
+		return false;
+	}
+
+	bcma_write32(core, D11REGOFFS(objaddr), OBJADDR_SHM_SEL | 0);
+	(void)bcma_read32(core, D11REGOFFS(objaddr));
+	bcma_write32(core, D11REGOFFS(objdata), (u32) 0x55aaaa55);
+
+	bcma_write32(core, D11REGOFFS(objaddr), OBJADDR_SHM_SEL | 0);
+	(void)bcma_read32(core, D11REGOFFS(objaddr));
+	val = bcma_read32(core, D11REGOFFS(objdata));
+	if (val != (u32) 0x55aaaa55) {
+		wiphy_err(wiphy, "wl%d: validate_chip_access: SHM = 0x%x, "
+			  "expected 0x55aaaa55\n", wlc_hw->unit, val);
+		return false;
+	}
+
+	bcma_write32(core, D11REGOFFS(objaddr), OBJADDR_SHM_SEL | 0);
+	(void)bcma_read32(core, D11REGOFFS(objaddr));
+	bcma_write32(core, D11REGOFFS(objdata), w);
+
+	/* clear CFPStart */
+	bcma_write32(core, D11REGOFFS(tsf_cfpstart), 0);
+
+	w = bcma_read32(core, D11REGOFFS(maccontrol));
+	if ((w != (MCTL_IHR_EN | MCTL_WAKE)) &&
+	    (w != (MCTL_IHR_EN | MCTL_GMODE | MCTL_WAKE))) {
+		wiphy_err(wiphy, "wl%d: validate_chip_access: maccontrol = "
+			  "0x%x, expected 0x%x or 0x%x\n", wlc_hw->unit, w,
+			  (MCTL_IHR_EN | MCTL_WAKE),
+			  (MCTL_IHR_EN | MCTL_GMODE | MCTL_WAKE));
+		return false;
+	}
+
+	return true;
+}
+
+#define PHYPLL_WAIT_US	100000
+
+void brcms_b_core_phypll_ctl(struct brcms_hardware *wlc_hw, bool on)
+{
+	struct bcma_device *core = wlc_hw->d11core;
+	u32 tmp;
+
+	brcms_dbg_info(core, "wl%d\n", wlc_hw->unit);
+
+	tmp = 0;
+
+	if (on) {
+		if ((ai_get_chip_id(wlc_hw->sih) == BCMA_CHIP_ID_BCM4313)) {
+			bcma_set32(core, D11REGOFFS(clk_ctl_st),
+				   CCS_ERSRC_REQ_HT |
+				   CCS_ERSRC_REQ_D11PLL |
+				   CCS_ERSRC_REQ_PHYPLL);
+			SPINWAIT((bcma_read32(core, D11REGOFFS(clk_ctl_st)) &
+				  CCS_ERSRC_AVAIL_HT) != CCS_ERSRC_AVAIL_HT,
+				 PHYPLL_WAIT_US);
+
+			tmp = bcma_read32(core, D11REGOFFS(clk_ctl_st));
+			if ((tmp & CCS_ERSRC_AVAIL_HT) != CCS_ERSRC_AVAIL_HT)
+				brcms_err(core, "%s: turn on PHY PLL failed\n",
+					  __func__);
+		} else {
+			bcma_set32(core, D11REGOFFS(clk_ctl_st),
+				   tmp | CCS_ERSRC_REQ_D11PLL |
+				   CCS_ERSRC_REQ_PHYPLL);
+			SPINWAIT((bcma_read32(core, D11REGOFFS(clk_ctl_st)) &
+				  (CCS_ERSRC_AVAIL_D11PLL |
+				   CCS_ERSRC_AVAIL_PHYPLL)) !=
+				 (CCS_ERSRC_AVAIL_D11PLL |
+				  CCS_ERSRC_AVAIL_PHYPLL), PHYPLL_WAIT_US);
+
+			tmp = bcma_read32(core, D11REGOFFS(clk_ctl_st));
+			if ((tmp &
+			     (CCS_ERSRC_AVAIL_D11PLL | CCS_ERSRC_AVAIL_PHYPLL))
+			    !=
+			    (CCS_ERSRC_AVAIL_D11PLL | CCS_ERSRC_AVAIL_PHYPLL))
+				brcms_err(core, "%s: turn on PHY PLL failed\n",
+					  __func__);
+		}
+	} else {
+		/*
+		 * Since the PLL may be shared, other cores can still
+		 * be requesting it; so we'll deassert the request but
+		 * not wait for status to comply.
+		 */
+		bcma_mask32(core, D11REGOFFS(clk_ctl_st),
+			    ~CCS_ERSRC_REQ_PHYPLL);
+		(void)bcma_read32(core, D11REGOFFS(clk_ctl_st));
+	}
+}
+
+static void brcms_c_coredisable(struct brcms_hardware *wlc_hw)
+{
+	bool dev_gone;
+
+	brcms_dbg_info(wlc_hw->d11core, "wl%d: disable core\n", wlc_hw->unit);
+
+	dev_gone = brcms_deviceremoved(wlc_hw->wlc);
+
+	if (dev_gone)
+		return;
+
+	if (wlc_hw->noreset)
+		return;
+
+	/* radio off */
+	wlc_phy_switch_radio(wlc_hw->band->pi, OFF);
+
+	/* turn off analog core */
+	wlc_phy_anacore(wlc_hw->band->pi, OFF);
+
+	/* turn off PHYPLL to save power */
+	brcms_b_core_phypll_ctl(wlc_hw, false);
+
+	wlc_hw->clk = false;
+	bcma_core_disable(wlc_hw->d11core, 0);
+	wlc_phy_hw_clk_state_upd(wlc_hw->band->pi, false);
+}
+
+static void brcms_c_flushqueues(struct brcms_c_info *wlc)
+{
+	struct brcms_hardware *wlc_hw = wlc->hw;
+	uint i;
+
+	/* free any posted tx packets */
+	for (i = 0; i < NFIFO; i++) {
+		if (wlc_hw->di[i]) {
+			dma_txreclaim(wlc_hw->di[i], DMA_RANGE_ALL);
+			if (i < TX_BCMC_FIFO)
+				ieee80211_wake_queue(wlc->pub->ieee_hw,
+						     brcms_fifo_to_ac(i));
+		}
+	}
+
+	/* free any posted rx packets */
+	dma_rxreclaim(wlc_hw->di[RX_FIFO]);
+}
+
+static u16
+brcms_b_read_objmem(struct brcms_hardware *wlc_hw, uint offset, u32 sel)
+{
+	struct bcma_device *core = wlc_hw->d11core;
+	u16 objoff = D11REGOFFS(objdata);
+
+	bcma_write32(core, D11REGOFFS(objaddr), sel | (offset >> 2));
+	(void)bcma_read32(core, D11REGOFFS(objaddr));
+	if (offset & 2)
+		objoff += 2;
+
+	return bcma_read16(core, objoff);
+}
+
+static void
+brcms_b_write_objmem(struct brcms_hardware *wlc_hw, uint offset, u16 v,
+		     u32 sel)
+{
+	struct bcma_device *core = wlc_hw->d11core;
+	u16 objoff = D11REGOFFS(objdata);
+
+	bcma_write32(core, D11REGOFFS(objaddr), sel | (offset >> 2));
+	(void)bcma_read32(core, D11REGOFFS(objaddr));
+	if (offset & 2)
+		objoff += 2;
+
+	bcma_wflush16(core, objoff, v);
+}
+
+/*
+ * Read a single u16 from shared memory.
+ * SHM 'offset' needs to be an even address
+ */
+u16 brcms_b_read_shm(struct brcms_hardware *wlc_hw, uint offset)
+{
+	return brcms_b_read_objmem(wlc_hw, offset, OBJADDR_SHM_SEL);
+}
+
+/*
+ * Write a single u16 to shared memory.
+ * SHM 'offset' needs to be an even address
+ */
+void brcms_b_write_shm(struct brcms_hardware *wlc_hw, uint offset, u16 v)
+{
+	brcms_b_write_objmem(wlc_hw, offset, v, OBJADDR_SHM_SEL);
+}
+
+/*
+ * Copy a buffer to shared memory of specified type .
+ * SHM 'offset' needs to be an even address and
+ * Buffer length 'len' must be an even number of bytes
+ * 'sel' selects the type of memory
+ */
+void
+brcms_b_copyto_objmem(struct brcms_hardware *wlc_hw, uint offset,
+		      const void *buf, int len, u32 sel)
+{
+	u16 v;
+	const u8 *p = (const u8 *)buf;
+	int i;
+
+	if (len <= 0 || (offset & 1) || (len & 1))
+		return;
+
+	for (i = 0; i < len; i += 2) {
+		v = p[i] | (p[i + 1] << 8);
+		brcms_b_write_objmem(wlc_hw, offset + i, v, sel);
+	}
+}
+
+/*
+ * Copy a piece of shared memory of specified type to a buffer .
+ * SHM 'offset' needs to be an even address and
+ * Buffer length 'len' must be an even number of bytes
+ * 'sel' selects the type of memory
+ */
+void
+brcms_b_copyfrom_objmem(struct brcms_hardware *wlc_hw, uint offset, void *buf,
+			 int len, u32 sel)
+{
+	u16 v;
+	u8 *p = (u8 *) buf;
+	int i;
+
+	if (len <= 0 || (offset & 1) || (len & 1))
+		return;
+
+	for (i = 0; i < len; i += 2) {
+		v = brcms_b_read_objmem(wlc_hw, offset + i, sel);
+		p[i] = v & 0xFF;
+		p[i + 1] = (v >> 8) & 0xFF;
+	}
+}
+
+/* Copy a buffer to shared memory.
+ * SHM 'offset' needs to be an even address and
+ * Buffer length 'len' must be an even number of bytes
+ */
+static void brcms_c_copyto_shm(struct brcms_c_info *wlc, uint offset,
+			const void *buf, int len)
+{
+	brcms_b_copyto_objmem(wlc->hw, offset, buf, len, OBJADDR_SHM_SEL);
+}
+
+static void brcms_b_retrylimit_upd(struct brcms_hardware *wlc_hw,
+				   u16 SRL, u16 LRL)
+{
+	wlc_hw->SRL = SRL;
+	wlc_hw->LRL = LRL;
+
+	/* write retry limit to SCR, shouldn't need to suspend */
+	if (wlc_hw->up) {
+		bcma_write32(wlc_hw->d11core, D11REGOFFS(objaddr),
+			     OBJADDR_SCR_SEL | S_DOT11_SRC_LMT);
+		(void)bcma_read32(wlc_hw->d11core, D11REGOFFS(objaddr));
+		bcma_write32(wlc_hw->d11core, D11REGOFFS(objdata), wlc_hw->SRL);
+		bcma_write32(wlc_hw->d11core, D11REGOFFS(objaddr),
+			     OBJADDR_SCR_SEL | S_DOT11_LRC_LMT);
+		(void)bcma_read32(wlc_hw->d11core, D11REGOFFS(objaddr));
+		bcma_write32(wlc_hw->d11core, D11REGOFFS(objdata), wlc_hw->LRL);
+	}
+}
+
+static void brcms_b_pllreq(struct brcms_hardware *wlc_hw, bool set, u32 req_bit)
+{
+	if (set) {
+		if (mboolisset(wlc_hw->pllreq, req_bit))
+			return;
+
+		mboolset(wlc_hw->pllreq, req_bit);
+
+		if (mboolisset(wlc_hw->pllreq, BRCMS_PLLREQ_FLIP)) {
+			if (!wlc_hw->sbclk)
+				brcms_b_xtal(wlc_hw, ON);
+		}
+	} else {
+		if (!mboolisset(wlc_hw->pllreq, req_bit))
+			return;
+
+		mboolclr(wlc_hw->pllreq, req_bit);
+
+		if (mboolisset(wlc_hw->pllreq, BRCMS_PLLREQ_FLIP)) {
+			if (wlc_hw->sbclk)
+				brcms_b_xtal(wlc_hw, OFF);
+		}
+	}
+}
+
+static void brcms_b_antsel_set(struct brcms_hardware *wlc_hw, u32 antsel_avail)
+{
+	wlc_hw->antsel_avail = antsel_avail;
+}
+
+/*
+ * conditions under which the PM bit should be set in outgoing frames
+ * and STAY_AWAKE is meaningful
+ */
+static bool brcms_c_ps_allowed(struct brcms_c_info *wlc)
+{
+	/* not supporting PS so always return false for now */
+	return false;
+}
+
+static void brcms_c_statsupd(struct brcms_c_info *wlc)
+{
+	int i;
+	struct macstat *macstats;
+#ifdef DEBUG
+	u16 delta;
+	u16 rxf0ovfl;
+	u16 txfunfl[NFIFO];
+#endif				/* DEBUG */
+
+	/* if driver down, make no sense to update stats */
+	if (!wlc->pub->up)
+		return;
+
+	macstats = wlc->core->macstat_snapshot;
+
+#ifdef DEBUG
+	/* save last rx fifo 0 overflow count */
+	rxf0ovfl = macstats->rxf0ovfl;
+
+	/* save last tx fifo  underflow count */
+	for (i = 0; i < NFIFO; i++)
+		txfunfl[i] = macstats->txfunfl[i];
+#endif				/* DEBUG */
+
+	/* Read mac stats from contiguous shared memory */
+	brcms_b_copyfrom_objmem(wlc->hw, M_UCODE_MACSTAT, macstats,
+				sizeof(*macstats), OBJADDR_SHM_SEL);
+
+#ifdef DEBUG
+	/* check for rx fifo 0 overflow */
+	delta = (u16)(macstats->rxf0ovfl - rxf0ovfl);
+	if (delta)
+		brcms_err(wlc->hw->d11core, "wl%d: %u rx fifo 0 overflows!\n",
+			  wlc->pub->unit, delta);
+
+	/* check for tx fifo underflows */
+	for (i = 0; i < NFIFO; i++) {
+		delta = macstats->txfunfl[i] - txfunfl[i];
+		if (delta)
+			brcms_err(wlc->hw->d11core,
+				  "wl%d: %u tx fifo %d underflows!\n",
+				  wlc->pub->unit, delta, i);
+	}
+#endif				/* DEBUG */
+
+	/* merge counters from dma module */
+	for (i = 0; i < NFIFO; i++) {
+		if (wlc->hw->di[i])
+			dma_counterreset(wlc->hw->di[i]);
+	}
+}
+
+static void brcms_b_reset(struct brcms_hardware *wlc_hw)
+{
+	/* reset the core */
+	if (!brcms_deviceremoved(wlc_hw->wlc))
+		brcms_b_corereset(wlc_hw, BRCMS_USE_COREFLAGS);
+
+	/* purge the dma rings */
+	brcms_c_flushqueues(wlc_hw->wlc);
+}
+
+void brcms_c_reset(struct brcms_c_info *wlc)
+{
+	brcms_dbg_info(wlc->hw->d11core, "wl%d\n", wlc->pub->unit);
+
+	/* slurp up hw mac counters before core reset */
+	brcms_c_statsupd(wlc);
+
+	/* reset our snapshot of macstat counters */
+	memset(wlc->core->macstat_snapshot, 0, sizeof(struct macstat));
+
+	brcms_b_reset(wlc->hw);
+}
+
+void brcms_c_init_scb(struct scb *scb)
+{
+	int i;
+
+	memset(scb, 0, sizeof(struct scb));
+	scb->flags = SCB_WMECAP | SCB_HTCAP;
+	for (i = 0; i < NUMPRIO; i++) {
+		scb->seqnum[i] = 0;
+		scb->seqctl[i] = 0xFFFF;
+	}
+
+	scb->seqctl_nonqos = 0xFFFF;
+	scb->magic = SCB_MAGIC;
+}
+
+/* d11 core init
+ *   reset PSM
+ *   download ucode/PCM
+ *   let ucode run to suspended
+ *   download ucode inits
+ *   config other core registers
+ *   init dma
+ */
+static void brcms_b_coreinit(struct brcms_c_info *wlc)
+{
+	struct brcms_hardware *wlc_hw = wlc->hw;
+	struct bcma_device *core = wlc_hw->d11core;
+	u32 sflags;
+	u32 bcnint_us;
+	uint i = 0;
+	bool fifosz_fixup = false;
+	int err = 0;
+	u16 buf[NFIFO];
+	struct brcms_ucode *ucode = &wlc_hw->wlc->wl->ucode;
+
+	brcms_dbg_info(core, "wl%d: core init\n", wlc_hw->unit);
+
+	/* reset PSM */
+	brcms_b_mctrl(wlc_hw, ~0, (MCTL_IHR_EN | MCTL_PSM_JMP_0 | MCTL_WAKE));
+
+	brcms_ucode_download(wlc_hw);
+	/*
+	 * FIFOSZ fixup. driver wants to controls the fifo allocation.
+	 */
+	fifosz_fixup = true;
+
+	/* let the PSM run to the suspended state, set mode to BSS STA */
+	bcma_write32(core, D11REGOFFS(macintstatus), -1);
+	brcms_b_mctrl(wlc_hw, ~0,
+		       (MCTL_IHR_EN | MCTL_INFRA | MCTL_PSM_RUN | MCTL_WAKE));
+
+	/* wait for ucode to self-suspend after auto-init */
+	SPINWAIT(((bcma_read32(core, D11REGOFFS(macintstatus)) &
+		   MI_MACSSPNDD) == 0), 1000 * 1000);
+	if ((bcma_read32(core, D11REGOFFS(macintstatus)) & MI_MACSSPNDD) == 0)
+		brcms_err(core, "wl%d: wlc_coreinit: ucode did not self-"
+			  "suspend!\n", wlc_hw->unit);
+
+	brcms_c_gpio_init(wlc);
+
+	sflags = bcma_aread32(core, BCMA_IOST);
+
+	if (D11REV_IS(wlc_hw->corerev, 17) || D11REV_IS(wlc_hw->corerev, 23)) {
+		if (BRCMS_ISNPHY(wlc_hw->band))
+			brcms_c_write_inits(wlc_hw, ucode->d11n0initvals16);
+		else
+			brcms_err(core, "%s: wl%d: unsupported phy in corerev"
+				  " %d\n", __func__, wlc_hw->unit,
+				  wlc_hw->corerev);
+	} else if (D11REV_IS(wlc_hw->corerev, 24)) {
+		if (BRCMS_ISLCNPHY(wlc_hw->band))
+			brcms_c_write_inits(wlc_hw, ucode->d11lcn0initvals24);
+		else
+			brcms_err(core, "%s: wl%d: unsupported phy in corerev"
+				  " %d\n", __func__, wlc_hw->unit,
+				  wlc_hw->corerev);
+	} else {
+		brcms_err(core, "%s: wl%d: unsupported corerev %d\n",
+			  __func__, wlc_hw->unit, wlc_hw->corerev);
+	}
+
+	/* For old ucode, txfifo sizes needs to be modified(increased) */
+	if (fifosz_fixup)
+		brcms_b_corerev_fifofixup(wlc_hw);
+
+	/* check txfifo allocations match between ucode and driver */
+	buf[TX_AC_BE_FIFO] = brcms_b_read_shm(wlc_hw, M_FIFOSIZE0);
+	if (buf[TX_AC_BE_FIFO] != wlc_hw->xmtfifo_sz[TX_AC_BE_FIFO]) {
+		i = TX_AC_BE_FIFO;
+		err = -1;
+	}
+	buf[TX_AC_VI_FIFO] = brcms_b_read_shm(wlc_hw, M_FIFOSIZE1);
+	if (buf[TX_AC_VI_FIFO] != wlc_hw->xmtfifo_sz[TX_AC_VI_FIFO]) {
+		i = TX_AC_VI_FIFO;
+		err = -1;
+	}
+	buf[TX_AC_BK_FIFO] = brcms_b_read_shm(wlc_hw, M_FIFOSIZE2);
+	buf[TX_AC_VO_FIFO] = (buf[TX_AC_BK_FIFO] >> 8) & 0xff;
+	buf[TX_AC_BK_FIFO] &= 0xff;
+	if (buf[TX_AC_BK_FIFO] != wlc_hw->xmtfifo_sz[TX_AC_BK_FIFO]) {
+		i = TX_AC_BK_FIFO;
+		err = -1;
+	}
+	if (buf[TX_AC_VO_FIFO] != wlc_hw->xmtfifo_sz[TX_AC_VO_FIFO]) {
+		i = TX_AC_VO_FIFO;
+		err = -1;
+	}
+	buf[TX_BCMC_FIFO] = brcms_b_read_shm(wlc_hw, M_FIFOSIZE3);
+	buf[TX_ATIM_FIFO] = (buf[TX_BCMC_FIFO] >> 8) & 0xff;
+	buf[TX_BCMC_FIFO] &= 0xff;
+	if (buf[TX_BCMC_FIFO] != wlc_hw->xmtfifo_sz[TX_BCMC_FIFO]) {
+		i = TX_BCMC_FIFO;
+		err = -1;
+	}
+	if (buf[TX_ATIM_FIFO] != wlc_hw->xmtfifo_sz[TX_ATIM_FIFO]) {
+		i = TX_ATIM_FIFO;
+		err = -1;
+	}
+	if (err != 0)
+		brcms_err(core, "wlc_coreinit: txfifo mismatch: ucode size %d"
+			  " driver size %d index %d\n", buf[i],
+			  wlc_hw->xmtfifo_sz[i], i);
+
+	/* make sure we can still talk to the mac */
+	WARN_ON(bcma_read32(core, D11REGOFFS(maccontrol)) == 0xffffffff);
+
+	/* band-specific inits done by wlc_bsinit() */
+
+	/* Set up frame burst size and antenna swap threshold init values */
+	brcms_b_write_shm(wlc_hw, M_MBURST_SIZE, MAXTXFRAMEBURST);
+	brcms_b_write_shm(wlc_hw, M_MAX_ANTCNT, ANTCNT);
+
+	/* enable one rx interrupt per received frame */
+	bcma_write32(core, D11REGOFFS(intrcvlazy[0]), (1 << IRL_FC_SHIFT));
+
+	/* set the station mode (BSS STA) */
+	brcms_b_mctrl(wlc_hw,
+		       (MCTL_INFRA | MCTL_DISCARD_PMQ | MCTL_AP),
+		       (MCTL_INFRA | MCTL_DISCARD_PMQ));
+
+	/* set up Beacon interval */
+	bcnint_us = 0x8000 << 10;
+	bcma_write32(core, D11REGOFFS(tsf_cfprep),
+		     (bcnint_us << CFPREP_CBI_SHIFT));
+	bcma_write32(core, D11REGOFFS(tsf_cfpstart), bcnint_us);
+	bcma_write32(core, D11REGOFFS(macintstatus), MI_GP1);
+
+	/* write interrupt mask */
+	bcma_write32(core, D11REGOFFS(intctrlregs[RX_FIFO].intmask),
+		     DEF_RXINTMASK);
+
+	/* allow the MAC to control the PHY clock (dynamic on/off) */
+	brcms_b_macphyclk_set(wlc_hw, ON);
+
+	/* program dynamic clock control fast powerup delay register */
+	wlc->fastpwrup_dly = ai_clkctl_fast_pwrup_delay(wlc_hw->sih);
+	bcma_write16(core, D11REGOFFS(scc_fastpwrup_dly), wlc->fastpwrup_dly);
+
+	/* tell the ucode the corerev */
+	brcms_b_write_shm(wlc_hw, M_MACHW_VER, (u16) wlc_hw->corerev);
+
+	/* tell the ucode MAC capabilities */
+	brcms_b_write_shm(wlc_hw, M_MACHW_CAP_L,
+			   (u16) (wlc_hw->machwcap & 0xffff));
+	brcms_b_write_shm(wlc_hw, M_MACHW_CAP_H,
+			   (u16) ((wlc_hw->
+				      machwcap >> 16) & 0xffff));
+
+	/* write retry limits to SCR, this done after PSM init */
+	bcma_write32(core, D11REGOFFS(objaddr),
+		     OBJADDR_SCR_SEL | S_DOT11_SRC_LMT);
+	(void)bcma_read32(core, D11REGOFFS(objaddr));
+	bcma_write32(core, D11REGOFFS(objdata), wlc_hw->SRL);
+	bcma_write32(core, D11REGOFFS(objaddr),
+		     OBJADDR_SCR_SEL | S_DOT11_LRC_LMT);
+	(void)bcma_read32(core, D11REGOFFS(objaddr));
+	bcma_write32(core, D11REGOFFS(objdata), wlc_hw->LRL);
+
+	/* write rate fallback retry limits */
+	brcms_b_write_shm(wlc_hw, M_SFRMTXCNTFBRTHSD, wlc_hw->SFBL);
+	brcms_b_write_shm(wlc_hw, M_LFRMTXCNTFBRTHSD, wlc_hw->LFBL);
+
+	bcma_mask16(core, D11REGOFFS(ifs_ctl), 0x0FFF);
+	bcma_write16(core, D11REGOFFS(ifs_aifsn), EDCF_AIFSN_MIN);
+
+	/* init the tx dma engines */
+	for (i = 0; i < NFIFO; i++) {
+		if (wlc_hw->di[i])
+			dma_txinit(wlc_hw->di[i]);
+	}
+
+	/* init the rx dma engine(s) and post receive buffers */
+	dma_rxinit(wlc_hw->di[RX_FIFO]);
+	dma_rxfill(wlc_hw->di[RX_FIFO]);
+}
+
+void
+static brcms_b_init(struct brcms_hardware *wlc_hw, u16 chanspec) {
+	u32 macintmask;
+	bool fastclk;
+	struct brcms_c_info *wlc = wlc_hw->wlc;
+
+	/* request FAST clock if not on */
+	fastclk = wlc_hw->forcefastclk;
+	if (!fastclk)
+		brcms_b_clkctl_clk(wlc_hw, BCMA_CLKMODE_FAST);
+
+	/* disable interrupts */
+	macintmask = brcms_intrsoff(wlc->wl);
+
+	/* set up the specified band and chanspec */
+	brcms_c_setxband(wlc_hw, chspec_bandunit(chanspec));
+	wlc_phy_chanspec_radio_set(wlc_hw->band->pi, chanspec);
+
+	/* do one-time phy inits and calibration */
+	wlc_phy_cal_init(wlc_hw->band->pi);
+
+	/* core-specific initialization */
+	brcms_b_coreinit(wlc);
+
+	/* band-specific inits */
+	brcms_b_bsinit(wlc, chanspec);
+
+	/* restore macintmask */
+	brcms_intrsrestore(wlc->wl, macintmask);
+
+	/* seed wake_override with BRCMS_WAKE_OVERRIDE_MACSUSPEND since the mac
+	 * is suspended and brcms_c_enable_mac() will clear this override bit.
+	 */
+	mboolset(wlc_hw->wake_override, BRCMS_WAKE_OVERRIDE_MACSUSPEND);
+
+	/*
+	 * initialize mac_suspend_depth to 1 to match ucode
+	 * initial suspended state
+	 */
+	wlc_hw->mac_suspend_depth = 1;
+
+	/* restore the clk */
+	if (!fastclk)
+		brcms_b_clkctl_clk(wlc_hw, BCMA_CLKMODE_DYNAMIC);
+}
+
+static void brcms_c_set_phy_chanspec(struct brcms_c_info *wlc,
+				     u16 chanspec)
+{
+	/* Save our copy of the chanspec */
+	wlc->chanspec = chanspec;
+
+	/* Set the chanspec and power limits for this locale */
+	brcms_c_channel_set_chanspec(wlc->cmi, chanspec, BRCMS_TXPWR_MAX);
+
+	if (wlc->stf->ss_algosel_auto)
+		brcms_c_stf_ss_algo_channel_get(wlc, &wlc->stf->ss_algo_channel,
+					    chanspec);
+
+	brcms_c_stf_ss_update(wlc, wlc->band);
+}
+
+static void
+brcms_default_rateset(struct brcms_c_info *wlc, struct brcms_c_rateset *rs)
+{
+	brcms_c_rateset_default(rs, NULL, wlc->band->phytype,
+		wlc->band->bandtype, false, BRCMS_RATE_MASK_FULL,
+		(bool) (wlc->pub->_n_enab & SUPPORT_11N),
+		brcms_chspec_bw(wlc->default_bss->chanspec),
+		wlc->stf->txstreams);
+}
+
+/* derive wlc->band->basic_rate[] table from 'rateset' */
+static void brcms_c_rate_lookup_init(struct brcms_c_info *wlc,
+			      struct brcms_c_rateset *rateset)
+{
+	u8 rate;
+	u8 mandatory;
+	u8 cck_basic = 0;
+	u8 ofdm_basic = 0;
+	u8 *br = wlc->band->basic_rate;
+	uint i;
+
+	/* incoming rates are in 500kbps units as in 802.11 Supported Rates */
+	memset(br, 0, BRCM_MAXRATE + 1);
+
+	/* For each basic rate in the rates list, make an entry in the
+	 * best basic lookup.
+	 */
+	for (i = 0; i < rateset->count; i++) {
+		/* only make an entry for a basic rate */
+		if (!(rateset->rates[i] & BRCMS_RATE_FLAG))
+			continue;
+
+		/* mask off basic bit */
+		rate = (rateset->rates[i] & BRCMS_RATE_MASK);
+
+		if (rate > BRCM_MAXRATE) {
+			brcms_err(wlc->hw->d11core, "brcms_c_rate_lookup_init: "
+				  "invalid rate 0x%X in rate set\n",
+				  rateset->rates[i]);
+			continue;
+		}
+
+		br[rate] = rate;
+	}
+
+	/* The rate lookup table now has non-zero entries for each
+	 * basic rate, equal to the basic rate: br[basicN] = basicN
+	 *
+	 * To look up the best basic rate corresponding to any
+	 * particular rate, code can use the basic_rate table
+	 * like this
+	 *
+	 * basic_rate = wlc->band->basic_rate[tx_rate]
+	 *
+	 * Make sure there is a best basic rate entry for
+	 * every rate by walking up the table from low rates
+	 * to high, filling in holes in the lookup table
+	 */
+
+	for (i = 0; i < wlc->band->hw_rateset.count; i++) {
+		rate = wlc->band->hw_rateset.rates[i];
+
+		if (br[rate] != 0) {
+			/* This rate is a basic rate.
+			 * Keep track of the best basic rate so far by
+			 * modulation type.
+			 */
+			if (is_ofdm_rate(rate))
+				ofdm_basic = rate;
+			else
+				cck_basic = rate;
+
+			continue;
+		}
+
+		/* This rate is not a basic rate so figure out the
+		 * best basic rate less than this rate and fill in
+		 * the hole in the table
+		 */
+
+		br[rate] = is_ofdm_rate(rate) ? ofdm_basic : cck_basic;
+
+		if (br[rate] != 0)
+			continue;
+
+		if (is_ofdm_rate(rate)) {
+			/*
+			 * In 11g and 11a, the OFDM mandatory rates
+			 * are 6, 12, and 24 Mbps
+			 */
+			if (rate >= BRCM_RATE_24M)
+				mandatory = BRCM_RATE_24M;
+			else if (rate >= BRCM_RATE_12M)
+				mandatory = BRCM_RATE_12M;
+			else
+				mandatory = BRCM_RATE_6M;
+		} else {
+			/* In 11b, all CCK rates are mandatory 1 - 11 Mbps */
+			mandatory = rate;
+		}
+
+		br[rate] = mandatory;
+	}
+}
+
+static void brcms_c_bandinit_ordered(struct brcms_c_info *wlc,
+				     u16 chanspec)
+{
+	struct brcms_c_rateset default_rateset;
+	uint parkband;
+	uint i, band_order[2];
+
+	/*
+	 * We might have been bandlocked during down and the chip
+	 * power-cycled (hibernate). Figure out the right band to park on
+	 */
+	if (wlc->bandlocked || wlc->pub->_nbands == 1) {
+		/* updated in brcms_c_bandlock() */
+		parkband = wlc->band->bandunit;
+		band_order[0] = band_order[1] = parkband;
+	} else {
+		/* park on the band of the specified chanspec */
+		parkband = chspec_bandunit(chanspec);
+
+		/* order so that parkband initialize last */
+		band_order[0] = parkband ^ 1;
+		band_order[1] = parkband;
+	}
+
+	/* make each band operational, software state init */
+	for (i = 0; i < wlc->pub->_nbands; i++) {
+		uint j = band_order[i];
+
+		wlc->band = wlc->bandstate[j];
+
+		brcms_default_rateset(wlc, &default_rateset);
+
+		/* fill in hw_rate */
+		brcms_c_rateset_filter(&default_rateset, &wlc->band->hw_rateset,
+				   false, BRCMS_RATES_CCK_OFDM, BRCMS_RATE_MASK,
+				   (bool) (wlc->pub->_n_enab & SUPPORT_11N));
+
+		/* init basic rate lookup */
+		brcms_c_rate_lookup_init(wlc, &default_rateset);
+	}
+
+	/* sync up phy/radio chanspec */
+	brcms_c_set_phy_chanspec(wlc, chanspec);
+}
+
+/*
+ * Set or clear filtering related maccontrol bits based on
+ * specified filter flags
+ */
+void brcms_c_mac_promisc(struct brcms_c_info *wlc, uint filter_flags)
+{
+	u32 promisc_bits = 0;
+
+	wlc->filter_flags = filter_flags;
+
+	if (filter_flags & FIF_OTHER_BSS)
+		promisc_bits |= MCTL_PROMISC;
+
+	if (filter_flags & FIF_BCN_PRBRESP_PROMISC)
+		promisc_bits |= MCTL_BCNS_PROMISC;
+
+	if (filter_flags & FIF_FCSFAIL)
+		promisc_bits |= MCTL_KEEPBADFCS;
+
+	if (filter_flags & (FIF_CONTROL | FIF_PSPOLL))
+		promisc_bits |= MCTL_KEEPCONTROL;
+
+	brcms_b_mctrl(wlc->hw,
+		MCTL_PROMISC | MCTL_BCNS_PROMISC |
+		MCTL_KEEPCONTROL | MCTL_KEEPBADFCS,
+		promisc_bits);
+}
+
+/*
+ * ucode, hwmac update
+ *    Channel dependent updates for ucode and hw
+ */
+static void brcms_c_ucode_mac_upd(struct brcms_c_info *wlc)
+{
+	/* enable or disable any active IBSSs depending on whether or not
+	 * we are on the home channel
+	 */
+	if (wlc->home_chanspec == wlc_phy_chanspec_get(wlc->band->pi)) {
+		if (wlc->pub->associated) {
+			/*
+			 * BMAC_NOTE: This is something that should be fixed
+			 * in ucode inits. I think that the ucode inits set
+			 * up the bcn templates and shm values with a bogus
+			 * beacon. This should not be done in the inits. If
+			 * ucode needs to set up a beacon for testing, the
+			 * test routines should write it down, not expect the
+			 * inits to populate a bogus beacon.
+			 */
+			if (BRCMS_PHY_11N_CAP(wlc->band))
+				brcms_b_write_shm(wlc->hw,
+						M_BCN_TXTSF_OFFSET, 0);
+		}
+	} else {
+		/* disable an active IBSS if we are not on the home channel */
+	}
+}
+
+static void brcms_c_write_rate_shm(struct brcms_c_info *wlc, u8 rate,
+				   u8 basic_rate)
+{
+	u8 phy_rate, index;
+	u8 basic_phy_rate, basic_index;
+	u16 dir_table, basic_table;
+	u16 basic_ptr;
+
+	/* Shared memory address for the table we are reading */
+	dir_table = is_ofdm_rate(basic_rate) ? M_RT_DIRMAP_A : M_RT_DIRMAP_B;
+
+	/* Shared memory address for the table we are writing */
+	basic_table = is_ofdm_rate(rate) ? M_RT_BBRSMAP_A : M_RT_BBRSMAP_B;
+
+	/*
+	 * for a given rate, the LS-nibble of the PLCP SIGNAL field is
+	 * the index into the rate table.
+	 */
+	phy_rate = rate_info[rate] & BRCMS_RATE_MASK;
+	basic_phy_rate = rate_info[basic_rate] & BRCMS_RATE_MASK;
+	index = phy_rate & 0xf;
+	basic_index = basic_phy_rate & 0xf;
+
+	/* Find the SHM pointer to the ACK rate entry by looking in the
+	 * Direct-map Table
+	 */
+	basic_ptr = brcms_b_read_shm(wlc->hw, (dir_table + basic_index * 2));
+
+	/* Update the SHM BSS-basic-rate-set mapping table with the pointer
+	 * to the correct basic rate for the given incoming rate
+	 */
+	brcms_b_write_shm(wlc->hw, (basic_table + index * 2), basic_ptr);
+}
+
+static const struct brcms_c_rateset *
+brcms_c_rateset_get_hwrs(struct brcms_c_info *wlc)
+{
+	const struct brcms_c_rateset *rs_dflt;
+
+	if (BRCMS_PHY_11N_CAP(wlc->band)) {
+		if (wlc->band->bandtype == BRCM_BAND_5G)
+			rs_dflt = &ofdm_mimo_rates;
+		else
+			rs_dflt = &cck_ofdm_mimo_rates;
+	} else if (wlc->band->gmode)
+		rs_dflt = &cck_ofdm_rates;
+	else
+		rs_dflt = &cck_rates;
+
+	return rs_dflt;
+}
+
+static void brcms_c_set_ratetable(struct brcms_c_info *wlc)
+{
+	const struct brcms_c_rateset *rs_dflt;
+	struct brcms_c_rateset rs;
+	u8 rate, basic_rate;
+	uint i;
+
+	rs_dflt = brcms_c_rateset_get_hwrs(wlc);
+
+	brcms_c_rateset_copy(rs_dflt, &rs);
+	brcms_c_rateset_mcs_upd(&rs, wlc->stf->txstreams);
+
+	/* walk the phy rate table and update SHM basic rate lookup table */
+	for (i = 0; i < rs.count; i++) {
+		rate = rs.rates[i] & BRCMS_RATE_MASK;
+
+		/* for a given rate brcms_basic_rate returns the rate at
+		 * which a response ACK/CTS should be sent.
+		 */
+		basic_rate = brcms_basic_rate(wlc, rate);
+		if (basic_rate == 0)
+			/* This should only happen if we are using a
+			 * restricted rateset.
+			 */
+			basic_rate = rs.rates[0] & BRCMS_RATE_MASK;
+
+		brcms_c_write_rate_shm(wlc, rate, basic_rate);
+	}
+}
+
+/* band-specific init */
+static void brcms_c_bsinit(struct brcms_c_info *wlc)
+{
+	brcms_dbg_info(wlc->hw->d11core, "wl%d: bandunit %d\n",
+		       wlc->pub->unit, wlc->band->bandunit);
+
+	/* write ucode ACK/CTS rate table */
+	brcms_c_set_ratetable(wlc);
+
+	/* update some band specific mac configuration */
+	brcms_c_ucode_mac_upd(wlc);
+
+	/* init antenna selection */
+	brcms_c_antsel_init(wlc->asi);
+
+}
+
+/* formula:  IDLE_BUSY_RATIO_X_16 = (100-duty_cycle)/duty_cycle*16 */
+static int
+brcms_c_duty_cycle_set(struct brcms_c_info *wlc, int duty_cycle, bool isOFDM,
+		   bool writeToShm)
+{
+	int idle_busy_ratio_x_16 = 0;
+	uint offset =
+	    isOFDM ? M_TX_IDLE_BUSY_RATIO_X_16_OFDM :
+	    M_TX_IDLE_BUSY_RATIO_X_16_CCK;
+	if (duty_cycle > 100 || duty_cycle < 0) {
+		brcms_err(wlc->hw->d11core,
+			  "wl%d:  duty cycle value off limit\n",
+			  wlc->pub->unit);
+		return -EINVAL;
+	}
+	if (duty_cycle)
+		idle_busy_ratio_x_16 = (100 - duty_cycle) * 16 / duty_cycle;
+	/* Only write to shared memory  when wl is up */
+	if (writeToShm)
+		brcms_b_write_shm(wlc->hw, offset, (u16) idle_busy_ratio_x_16);
+
+	if (isOFDM)
+		wlc->tx_duty_cycle_ofdm = (u16) duty_cycle;
+	else
+		wlc->tx_duty_cycle_cck = (u16) duty_cycle;
+
+	return 0;
+}
+
+/* push sw hps and wake state through hardware */
+static void brcms_c_set_ps_ctrl(struct brcms_c_info *wlc)
+{
+	u32 v1, v2;
+	bool hps;
+	bool awake_before;
+
+	hps = brcms_c_ps_allowed(wlc);
+
+	brcms_dbg_mac80211(wlc->hw->d11core, "wl%d: hps %d\n", wlc->pub->unit,
+			   hps);
+
+	v1 = bcma_read32(wlc->hw->d11core, D11REGOFFS(maccontrol));
+	v2 = MCTL_WAKE;
+	if (hps)
+		v2 |= MCTL_HPS;
+
+	brcms_b_mctrl(wlc->hw, MCTL_WAKE | MCTL_HPS, v2);
+
+	awake_before = ((v1 & MCTL_WAKE) || ((v1 & MCTL_HPS) == 0));
+
+	if (!awake_before)
+		brcms_b_wait_for_wake(wlc->hw);
+}
+
+/*
+ * Write this BSS config's MAC address to core.
+ * Updates RXE match engine.
+ */
+static int brcms_c_set_mac(struct brcms_bss_cfg *bsscfg)
+{
+	int err = 0;
+	struct brcms_c_info *wlc = bsscfg->wlc;
+
+	/* enter the MAC addr into the RXE match registers */
+	brcms_c_set_addrmatch(wlc, RCM_MAC_OFFSET, wlc->pub->cur_etheraddr);
+
+	brcms_c_ampdu_macaddr_upd(wlc);
+
+	return err;
+}
+
+/* Write the BSS config's BSSID address to core (set_bssid in d11procs.tcl).
+ * Updates RXE match engine.
+ */
+static void brcms_c_set_bssid(struct brcms_bss_cfg *bsscfg)
+{
+	/* we need to update BSSID in RXE match registers */
+	brcms_c_set_addrmatch(bsscfg->wlc, RCM_BSSID_OFFSET, bsscfg->BSSID);
+}
+
+void brcms_c_set_ssid(struct brcms_c_info *wlc, u8 *ssid, size_t ssid_len)
+{
+	u8 len = min_t(u8, sizeof(wlc->bsscfg->SSID), ssid_len);
+	memset(wlc->bsscfg->SSID, 0, sizeof(wlc->bsscfg->SSID));
+
+	memcpy(wlc->bsscfg->SSID, ssid, len);
+	wlc->bsscfg->SSID_len = len;
+}
+
+static void brcms_b_set_shortslot(struct brcms_hardware *wlc_hw, bool shortslot)
+{
+	wlc_hw->shortslot = shortslot;
+
+	if (wlc_hw->band->bandtype == BRCM_BAND_2G && wlc_hw->up) {
+		brcms_c_suspend_mac_and_wait(wlc_hw->wlc);
+		brcms_b_update_slot_timing(wlc_hw, shortslot);
+		brcms_c_enable_mac(wlc_hw->wlc);
+	}
+}
+
+/*
+ * Suspend the the MAC and update the slot timing
+ * for standard 11b/g (20us slots) or shortslot 11g (9us slots).
+ */
+static void brcms_c_switch_shortslot(struct brcms_c_info *wlc, bool shortslot)
+{
+	/* use the override if it is set */
+	if (wlc->shortslot_override != BRCMS_SHORTSLOT_AUTO)
+		shortslot = (wlc->shortslot_override == BRCMS_SHORTSLOT_ON);
+
+	if (wlc->shortslot == shortslot)
+		return;
+
+	wlc->shortslot = shortslot;
+
+	brcms_b_set_shortslot(wlc->hw, shortslot);
+}
+
+static void brcms_c_set_home_chanspec(struct brcms_c_info *wlc, u16 chanspec)
+{
+	if (wlc->home_chanspec != chanspec) {
+		wlc->home_chanspec = chanspec;
+
+		if (wlc->pub->associated)
+			wlc->bsscfg->current_bss->chanspec = chanspec;
+	}
+}
+
+void
+brcms_b_set_chanspec(struct brcms_hardware *wlc_hw, u16 chanspec,
+		      bool mute_tx, struct txpwr_limits *txpwr)
+{
+	uint bandunit;
+
+	brcms_dbg_mac80211(wlc_hw->d11core, "wl%d: 0x%x\n", wlc_hw->unit,
+			   chanspec);
+
+	wlc_hw->chanspec = chanspec;
+
+	/* Switch bands if necessary */
+	if (wlc_hw->_nbands > 1) {
+		bandunit = chspec_bandunit(chanspec);
+		if (wlc_hw->band->bandunit != bandunit) {
+			/* brcms_b_setband disables other bandunit,
+			 *  use light band switch if not up yet
+			 */
+			if (wlc_hw->up) {
+				wlc_phy_chanspec_radio_set(wlc_hw->
+							   bandstate[bandunit]->
+							   pi, chanspec);
+				brcms_b_setband(wlc_hw, bandunit, chanspec);
+			} else {
+				brcms_c_setxband(wlc_hw, bandunit);
+			}
+		}
+	}
+
+	wlc_phy_initcal_enable(wlc_hw->band->pi, !mute_tx);
+
+	if (!wlc_hw->up) {
+		if (wlc_hw->clk)
+			wlc_phy_txpower_limit_set(wlc_hw->band->pi, txpwr,
+						  chanspec);
+		wlc_phy_chanspec_radio_set(wlc_hw->band->pi, chanspec);
+	} else {
+		wlc_phy_chanspec_set(wlc_hw->band->pi, chanspec);
+		wlc_phy_txpower_limit_set(wlc_hw->band->pi, txpwr, chanspec);
+
+		/* Update muting of the channel */
+		brcms_b_mute(wlc_hw, mute_tx);
+	}
+}
+
+/* switch to and initialize new band */
+static void brcms_c_setband(struct brcms_c_info *wlc,
+					   uint bandunit)
+{
+	wlc->band = wlc->bandstate[bandunit];
+
+	if (!wlc->pub->up)
+		return;
+
+	/* wait for at least one beacon before entering sleeping state */
+	brcms_c_set_ps_ctrl(wlc);
+
+	/* band-specific initializations */
+	brcms_c_bsinit(wlc);
+}
+
+static void brcms_c_set_chanspec(struct brcms_c_info *wlc, u16 chanspec)
+{
+	uint bandunit;
+	bool switchband = false;
+	u16 old_chanspec = wlc->chanspec;
+
+	if (!brcms_c_valid_chanspec_db(wlc->cmi, chanspec)) {
+		brcms_err(wlc->hw->d11core, "wl%d: %s: Bad channel %d\n",
+			  wlc->pub->unit, __func__, CHSPEC_CHANNEL(chanspec));
+		return;
+	}
+
+	/* Switch bands if necessary */
+	if (wlc->pub->_nbands > 1) {
+		bandunit = chspec_bandunit(chanspec);
+		if (wlc->band->bandunit != bandunit || wlc->bandinit_pending) {
+			switchband = true;
+			if (wlc->bandlocked) {
+				brcms_err(wlc->hw->d11core,
+					  "wl%d: %s: chspec %d band is locked!\n",
+					  wlc->pub->unit, __func__,
+					  CHSPEC_CHANNEL(chanspec));
+				return;
+			}
+			/*
+			 * should the setband call come after the
+			 * brcms_b_chanspec() ? if the setband updates
+			 * (brcms_c_bsinit) use low level calls to inspect and
+			 * set state, the state inspected may be from the wrong
+			 * band, or the following brcms_b_set_chanspec() may
+			 * undo the work.
+			 */
+			brcms_c_setband(wlc, bandunit);
+		}
+	}
+
+	/* sync up phy/radio chanspec */
+	brcms_c_set_phy_chanspec(wlc, chanspec);
+
+	/* init antenna selection */
+	if (brcms_chspec_bw(old_chanspec) != brcms_chspec_bw(chanspec)) {
+		brcms_c_antsel_init(wlc->asi);
+
+		/* Fix the hardware rateset based on bw.
+		 * Mainly add MCS32 for 40Mhz, remove MCS 32 for 20Mhz
+		 */
+		brcms_c_rateset_bw_mcs_filter(&wlc->band->hw_rateset,
+			wlc->band->mimo_cap_40 ? brcms_chspec_bw(chanspec) : 0);
+	}
+
+	/* update some mac configuration since chanspec changed */
+	brcms_c_ucode_mac_upd(wlc);
+}
+
+/*
+ * This function changes the phytxctl for beacon based on current
+ * beacon ratespec AND txant setting as per this table:
+ *  ratespec     CCK		ant = wlc->stf->txant
+ *		OFDM		ant = 3
+ */
+void brcms_c_beacon_phytxctl_txant_upd(struct brcms_c_info *wlc,
+				       u32 bcn_rspec)
+{
+	u16 phyctl;
+	u16 phytxant = wlc->stf->phytxant;
+	u16 mask = PHY_TXC_ANT_MASK;
+
+	/* for non-siso rates or default setting, use the available chains */
+	if (BRCMS_PHY_11N_CAP(wlc->band))
+		phytxant = brcms_c_stf_phytxchain_sel(wlc, bcn_rspec);
+
+	phyctl = brcms_b_read_shm(wlc->hw, M_BCN_PCTLWD);
+	phyctl = (phyctl & ~mask) | phytxant;
+	brcms_b_write_shm(wlc->hw, M_BCN_PCTLWD, phyctl);
+}
+
+/*
+ * centralized protection config change function to simplify debugging, no
+ * consistency checking this should be called only on changes to avoid overhead
+ * in periodic function
+ */
+void brcms_c_protection_upd(struct brcms_c_info *wlc, uint idx, int val)
+{
+	/*
+	 * Cannot use brcms_dbg_* here because this function is called
+	 * before wlc is sufficiently initialized.
+	 */
+	BCMMSG(wlc->wiphy, "idx %d, val %d\n", idx, val);
+
+	switch (idx) {
+	case BRCMS_PROT_G_SPEC:
+		wlc->protection->_g = (bool) val;
+		break;
+	case BRCMS_PROT_G_OVR:
+		wlc->protection->g_override = (s8) val;
+		break;
+	case BRCMS_PROT_G_USER:
+		wlc->protection->gmode_user = (u8) val;
+		break;
+	case BRCMS_PROT_OVERLAP:
+		wlc->protection->overlap = (s8) val;
+		break;
+	case BRCMS_PROT_N_USER:
+		wlc->protection->nmode_user = (s8) val;
+		break;
+	case BRCMS_PROT_N_CFG:
+		wlc->protection->n_cfg = (s8) val;
+		break;
+	case BRCMS_PROT_N_CFG_OVR:
+		wlc->protection->n_cfg_override = (s8) val;
+		break;
+	case BRCMS_PROT_N_NONGF:
+		wlc->protection->nongf = (bool) val;
+		break;
+	case BRCMS_PROT_N_NONGF_OVR:
+		wlc->protection->nongf_override = (s8) val;
+		break;
+	case BRCMS_PROT_N_PAM_OVR:
+		wlc->protection->n_pam_override = (s8) val;
+		break;
+	case BRCMS_PROT_N_OBSS:
+		wlc->protection->n_obss = (bool) val;
+		break;
+
+	default:
+		break;
+	}
+
+}
+
+static void brcms_c_ht_update_sgi_rx(struct brcms_c_info *wlc, int val)
+{
+	if (wlc->pub->up) {
+		brcms_c_update_beacon(wlc);
+		brcms_c_update_probe_resp(wlc, true);
+	}
+}
+
+static void brcms_c_ht_update_ldpc(struct brcms_c_info *wlc, s8 val)
+{
+	wlc->stf->ldpc = val;
+
+	if (wlc->pub->up) {
+		brcms_c_update_beacon(wlc);
+		brcms_c_update_probe_resp(wlc, true);
+		wlc_phy_ldpc_override_set(wlc->band->pi, (val ? true : false));
+	}
+}
+
+void brcms_c_wme_setparams(struct brcms_c_info *wlc, u16 aci,
+		       const struct ieee80211_tx_queue_params *params,
+		       bool suspend)
+{
+	int i;
+	struct shm_acparams acp_shm;
+	u16 *shm_entry;
+
+	/* Only apply params if the core is out of reset and has clocks */
+	if (!wlc->clk) {
+		brcms_err(wlc->hw->d11core, "wl%d: %s : no-clock\n",
+			  wlc->pub->unit, __func__);
+		return;
+	}
+
+	memset(&acp_shm, 0, sizeof(struct shm_acparams));
+	/* fill in shm ac params struct */
+	acp_shm.txop = params->txop;
+	/* convert from units of 32us to us for ucode */
+	wlc->edcf_txop[aci & 0x3] = acp_shm.txop =
+	    EDCF_TXOP2USEC(acp_shm.txop);
+	acp_shm.aifs = (params->aifs & EDCF_AIFSN_MASK);
+
+	if (aci == IEEE80211_AC_VI && acp_shm.txop == 0
+	    && acp_shm.aifs < EDCF_AIFSN_MAX)
+		acp_shm.aifs++;
+
+	if (acp_shm.aifs < EDCF_AIFSN_MIN
+	    || acp_shm.aifs > EDCF_AIFSN_MAX) {
+		brcms_err(wlc->hw->d11core, "wl%d: edcf_setparams: bad "
+			  "aifs %d\n", wlc->pub->unit, acp_shm.aifs);
+	} else {
+		acp_shm.cwmin = params->cw_min;
+		acp_shm.cwmax = params->cw_max;
+		acp_shm.cwcur = acp_shm.cwmin;
+		acp_shm.bslots =
+			bcma_read16(wlc->hw->d11core, D11REGOFFS(tsf_random)) &
+			acp_shm.cwcur;
+		acp_shm.reggap = acp_shm.bslots + acp_shm.aifs;
+		/* Indicate the new params to the ucode */
+		acp_shm.status = brcms_b_read_shm(wlc->hw, (M_EDCF_QINFO +
+						  wme_ac2fifo[aci] *
+						  M_EDCF_QLEN +
+						  M_EDCF_STATUS_OFF));
+		acp_shm.status |= WME_STATUS_NEWAC;
+
+		/* Fill in shm acparam table */
+		shm_entry = (u16 *) &acp_shm;
+		for (i = 0; i < (int)sizeof(struct shm_acparams); i += 2)
+			brcms_b_write_shm(wlc->hw,
+					  M_EDCF_QINFO +
+					  wme_ac2fifo[aci] * M_EDCF_QLEN + i,
+					  *shm_entry++);
+	}
+
+	if (suspend)
+		brcms_c_suspend_mac_and_wait(wlc);
+
+	brcms_c_update_beacon(wlc);
+	brcms_c_update_probe_resp(wlc, false);
+
+	if (suspend)
+		brcms_c_enable_mac(wlc);
+}
+
+static void brcms_c_edcf_setparams(struct brcms_c_info *wlc, bool suspend)
+{
+	u16 aci;
+	int i_ac;
+	struct ieee80211_tx_queue_params txq_pars;
+	static const struct edcf_acparam default_edcf_acparams[] = {
+		 {EDCF_AC_BE_ACI_STA, EDCF_AC_BE_ECW_STA, EDCF_AC_BE_TXOP_STA},
+		 {EDCF_AC_BK_ACI_STA, EDCF_AC_BK_ECW_STA, EDCF_AC_BK_TXOP_STA},
+		 {EDCF_AC_VI_ACI_STA, EDCF_AC_VI_ECW_STA, EDCF_AC_VI_TXOP_STA},
+		 {EDCF_AC_VO_ACI_STA, EDCF_AC_VO_ECW_STA, EDCF_AC_VO_TXOP_STA}
+	}; /* ucode needs these parameters during its initialization */
+	const struct edcf_acparam *edcf_acp = &default_edcf_acparams[0];
+
+	for (i_ac = 0; i_ac < IEEE80211_NUM_ACS; i_ac++, edcf_acp++) {
+		/* find out which ac this set of params applies to */
+		aci = (edcf_acp->ACI & EDCF_ACI_MASK) >> EDCF_ACI_SHIFT;
+
+		/* fill in shm ac params struct */
+		txq_pars.txop = edcf_acp->TXOP;
+		txq_pars.aifs = edcf_acp->ACI;
+
+		/* CWmin = 2^(ECWmin) - 1 */
+		txq_pars.cw_min = EDCF_ECW2CW(edcf_acp->ECW & EDCF_ECWMIN_MASK);
+		/* CWmax = 2^(ECWmax) - 1 */
+		txq_pars.cw_max = EDCF_ECW2CW((edcf_acp->ECW & EDCF_ECWMAX_MASK)
+					    >> EDCF_ECWMAX_SHIFT);
+		brcms_c_wme_setparams(wlc, aci, &txq_pars, suspend);
+	}
+
+	if (suspend) {
+		brcms_c_suspend_mac_and_wait(wlc);
+		brcms_c_enable_mac(wlc);
+	}
+}
+
+static void brcms_c_radio_monitor_start(struct brcms_c_info *wlc)
+{
+	/* Don't start the timer if HWRADIO feature is disabled */
+	if (wlc->radio_monitor)
+		return;
+
+	wlc->radio_monitor = true;
+	brcms_b_pllreq(wlc->hw, true, BRCMS_PLLREQ_RADIO_MON);
+	brcms_add_timer(wlc->radio_timer, TIMER_INTERVAL_RADIOCHK, true);
+}
+
+static bool brcms_c_radio_monitor_stop(struct brcms_c_info *wlc)
+{
+	if (!wlc->radio_monitor)
+		return true;
+
+	wlc->radio_monitor = false;
+	brcms_b_pllreq(wlc->hw, false, BRCMS_PLLREQ_RADIO_MON);
+	return brcms_del_timer(wlc->radio_timer);
+}
+
+/* read hwdisable state and propagate to wlc flag */
+static void brcms_c_radio_hwdisable_upd(struct brcms_c_info *wlc)
+{
+	if (wlc->pub->hw_off)
+		return;
+
+	if (brcms_b_radio_read_hwdisabled(wlc->hw))
+		mboolset(wlc->pub->radio_disabled, WL_RADIO_HW_DISABLE);
+	else
+		mboolclr(wlc->pub->radio_disabled, WL_RADIO_HW_DISABLE);
+}
+
+/* update hwradio status and return it */
+bool brcms_c_check_radio_disabled(struct brcms_c_info *wlc)
+{
+	brcms_c_radio_hwdisable_upd(wlc);
+
+	return mboolisset(wlc->pub->radio_disabled, WL_RADIO_HW_DISABLE) ?
+			true : false;
+}
+
+/* periodical query hw radio button while driver is "down" */
+static void brcms_c_radio_timer(void *arg)
+{
+	struct brcms_c_info *wlc = (struct brcms_c_info *) arg;
+
+	if (brcms_deviceremoved(wlc)) {
+		brcms_err(wlc->hw->d11core, "wl%d: %s: dead chip\n",
+			  wlc->pub->unit, __func__);
+		brcms_down(wlc->wl);
+		return;
+	}
+
+	brcms_c_radio_hwdisable_upd(wlc);
+}
+
+/* common low-level watchdog code */
+static void brcms_b_watchdog(struct brcms_c_info *wlc)
+{
+	struct brcms_hardware *wlc_hw = wlc->hw;
+
+	if (!wlc_hw->up)
+		return;
+
+	/* increment second count */
+	wlc_hw->now++;
+
+	/* Check for FIFO error interrupts */
+	brcms_b_fifoerrors(wlc_hw);
+
+	/* make sure RX dma has buffers */
+	dma_rxfill(wlc->hw->di[RX_FIFO]);
+
+	wlc_phy_watchdog(wlc_hw->band->pi);
+}
+
+/* common watchdog code */
+static void brcms_c_watchdog(struct brcms_c_info *wlc)
+{
+	brcms_dbg_info(wlc->hw->d11core, "wl%d\n", wlc->pub->unit);
+
+	if (!wlc->pub->up)
+		return;
+
+	if (brcms_deviceremoved(wlc)) {
+		brcms_err(wlc->hw->d11core, "wl%d: %s: dead chip\n",
+			  wlc->pub->unit, __func__);
+		brcms_down(wlc->wl);
+		return;
+	}
+
+	/* increment second count */
+	wlc->pub->now++;
+
+	brcms_c_radio_hwdisable_upd(wlc);
+	/* if radio is disable, driver may be down, quit here */
+	if (wlc->pub->radio_disabled)
+		return;
+
+	brcms_b_watchdog(wlc);
+
+	/*
+	 * occasionally sample mac stat counters to
+	 * detect 16-bit counter wrap
+	 */
+	if ((wlc->pub->now % SW_TIMER_MAC_STAT_UPD) == 0)
+		brcms_c_statsupd(wlc);
+
+	if (BRCMS_ISNPHY(wlc->band) &&
+	    ((wlc->pub->now - wlc->tempsense_lasttime) >=
+	     BRCMS_TEMPSENSE_PERIOD)) {
+		wlc->tempsense_lasttime = wlc->pub->now;
+		brcms_c_tempsense_upd(wlc);
+	}
+}
+
+static void brcms_c_watchdog_by_timer(void *arg)
+{
+	struct brcms_c_info *wlc = (struct brcms_c_info *) arg;
+
+	brcms_c_watchdog(wlc);
+}
+
+static bool brcms_c_timers_init(struct brcms_c_info *wlc, int unit)
+{
+	wlc->wdtimer = brcms_init_timer(wlc->wl, brcms_c_watchdog_by_timer,
+		wlc, "watchdog");
+	if (!wlc->wdtimer) {
+		wiphy_err(wlc->wiphy, "wl%d:  wl_init_timer for wdtimer "
+			  "failed\n", unit);
+		goto fail;
+	}
+
+	wlc->radio_timer = brcms_init_timer(wlc->wl, brcms_c_radio_timer,
+		wlc, "radio");
+	if (!wlc->radio_timer) {
+		wiphy_err(wlc->wiphy, "wl%d:  wl_init_timer for radio_timer "
+			  "failed\n", unit);
+		goto fail;
+	}
+
+	return true;
+
+ fail:
+	return false;
+}
+
+/*
+ * Initialize brcms_c_info default values ...
+ * may get overrides later in this function
+ */
+static void brcms_c_info_init(struct brcms_c_info *wlc, int unit)
+{
+	int i;
+
+	/* Save our copy of the chanspec */
+	wlc->chanspec = ch20mhz_chspec(1);
+
+	/* various 802.11g modes */
+	wlc->shortslot = false;
+	wlc->shortslot_override = BRCMS_SHORTSLOT_AUTO;
+
+	brcms_c_protection_upd(wlc, BRCMS_PROT_G_OVR, BRCMS_PROTECTION_AUTO);
+	brcms_c_protection_upd(wlc, BRCMS_PROT_G_SPEC, false);
+
+	brcms_c_protection_upd(wlc, BRCMS_PROT_N_CFG_OVR,
+			       BRCMS_PROTECTION_AUTO);
+	brcms_c_protection_upd(wlc, BRCMS_PROT_N_CFG, BRCMS_N_PROTECTION_OFF);
+	brcms_c_protection_upd(wlc, BRCMS_PROT_N_NONGF_OVR,
+			       BRCMS_PROTECTION_AUTO);
+	brcms_c_protection_upd(wlc, BRCMS_PROT_N_NONGF, false);
+	brcms_c_protection_upd(wlc, BRCMS_PROT_N_PAM_OVR, AUTO);
+
+	brcms_c_protection_upd(wlc, BRCMS_PROT_OVERLAP,
+			       BRCMS_PROTECTION_CTL_OVERLAP);
+
+	/* 802.11g draft 4.0 NonERP elt advertisement */
+	wlc->include_legacy_erp = true;
+
+	wlc->stf->ant_rx_ovr = ANT_RX_DIV_DEF;
+	wlc->stf->txant = ANT_TX_DEF;
+
+	wlc->prb_resp_timeout = BRCMS_PRB_RESP_TIMEOUT;
+
+	wlc->usr_fragthresh = DOT11_DEFAULT_FRAG_LEN;
+	for (i = 0; i < NFIFO; i++)
+		wlc->fragthresh[i] = DOT11_DEFAULT_FRAG_LEN;
+	wlc->RTSThresh = DOT11_DEFAULT_RTS_LEN;
+
+	/* default rate fallback retry limits */
+	wlc->SFBL = RETRY_SHORT_FB;
+	wlc->LFBL = RETRY_LONG_FB;
+
+	/* default mac retry limits */
+	wlc->SRL = RETRY_SHORT_DEF;
+	wlc->LRL = RETRY_LONG_DEF;
+
+	/* WME QoS mode is Auto by default */
+	wlc->pub->_ampdu = AMPDU_AGG_HOST;
+}
+
+static uint brcms_c_attach_module(struct brcms_c_info *wlc)
+{
+	uint err = 0;
+	uint unit;
+	unit = wlc->pub->unit;
+
+	wlc->asi = brcms_c_antsel_attach(wlc);
+	if (wlc->asi == NULL) {
+		wiphy_err(wlc->wiphy, "wl%d: attach: antsel_attach "
+			  "failed\n", unit);
+		err = 44;
+		goto fail;
+	}
+
+	wlc->ampdu = brcms_c_ampdu_attach(wlc);
+	if (wlc->ampdu == NULL) {
+		wiphy_err(wlc->wiphy, "wl%d: attach: ampdu_attach "
+			  "failed\n", unit);
+		err = 50;
+		goto fail;
+	}
+
+	if ((brcms_c_stf_attach(wlc) != 0)) {
+		wiphy_err(wlc->wiphy, "wl%d: attach: stf_attach "
+			  "failed\n", unit);
+		err = 68;
+		goto fail;
+	}
+ fail:
+	return err;
+}
+
+struct brcms_pub *brcms_c_pub(struct brcms_c_info *wlc)
+{
+	return wlc->pub;
+}
+
+/* low level attach
+ *    run backplane attach, init nvram
+ *    run phy attach
+ *    initialize software state for each core and band
+ *    put the whole chip in reset(driver down state), no clock
+ */
+static int brcms_b_attach(struct brcms_c_info *wlc, struct bcma_device *core,
+			  uint unit, bool piomode)
+{
+	struct brcms_hardware *wlc_hw;
+	uint err = 0;
+	uint j;
+	bool wme = false;
+	struct shared_phy_params sha_params;
+	struct wiphy *wiphy = wlc->wiphy;
+	struct pci_dev *pcidev = core->bus->host_pci;
+	struct ssb_sprom *sprom = &core->bus->sprom;
+
+	if (core->bus->hosttype == BCMA_HOSTTYPE_PCI)
+		brcms_dbg_info(core, "wl%d: vendor 0x%x device 0x%x\n", unit,
+			       pcidev->vendor,
+			       pcidev->device);
+	else
+		brcms_dbg_info(core, "wl%d: vendor 0x%x device 0x%x\n", unit,
+			       core->bus->boardinfo.vendor,
+			       core->bus->boardinfo.type);
+
+	wme = true;
+
+	wlc_hw = wlc->hw;
+	wlc_hw->wlc = wlc;
+	wlc_hw->unit = unit;
+	wlc_hw->band = wlc_hw->bandstate[0];
+	wlc_hw->_piomode = piomode;
+
+	/* populate struct brcms_hardware with default values  */
+	brcms_b_info_init(wlc_hw);
+
+	/*
+	 * Do the hardware portion of the attach. Also initialize software
+	 * state that depends on the particular hardware we are running.
+	 */
+	wlc_hw->sih = ai_attach(core->bus);
+	if (wlc_hw->sih == NULL) {
+		wiphy_err(wiphy, "wl%d: brcms_b_attach: si_attach failed\n",
+			  unit);
+		err = 11;
+		goto fail;
+	}
+
+	/* verify again the device is supported */
+	if (!brcms_c_chipmatch(core)) {
+		wiphy_err(wiphy, "wl%d: brcms_b_attach: Unsupported device\n",
+			 unit);
+		err = 12;
+		goto fail;
+	}
+
+	if (core->bus->hosttype == BCMA_HOSTTYPE_PCI) {
+		wlc_hw->vendorid = pcidev->vendor;
+		wlc_hw->deviceid = pcidev->device;
+	} else {
+		wlc_hw->vendorid = core->bus->boardinfo.vendor;
+		wlc_hw->deviceid = core->bus->boardinfo.type;
+	}
+
+	wlc_hw->d11core = core;
+	wlc_hw->corerev = core->id.rev;
+
+	/* validate chip, chiprev and corerev */
+	if (!brcms_c_isgoodchip(wlc_hw)) {
+		err = 13;
+		goto fail;
+	}
+
+	/* initialize power control registers */
+	ai_clkctl_init(wlc_hw->sih);
+
+	/* request fastclock and force fastclock for the rest of attach
+	 * bring the d11 core out of reset.
+	 *   For PMU chips, the first wlc_clkctl_clk is no-op since core-clk
+	 *   is still false; But it will be called again inside wlc_corereset,
+	 *   after d11 is out of reset.
+	 */
+	brcms_b_clkctl_clk(wlc_hw, BCMA_CLKMODE_FAST);
+	brcms_b_corereset(wlc_hw, BRCMS_USE_COREFLAGS);
+
+	if (!brcms_b_validate_chip_access(wlc_hw)) {
+		wiphy_err(wiphy, "wl%d: brcms_b_attach: validate_chip_access "
+			"failed\n", unit);
+		err = 14;
+		goto fail;
+	}
+
+	/* get the board rev, used just below */
+	j = sprom->board_rev;
+	/* promote srom boardrev of 0xFF to 1 */
+	if (j == BOARDREV_PROMOTABLE)
+		j = BOARDREV_PROMOTED;
+	wlc_hw->boardrev = (u16) j;
+	if (!brcms_c_validboardtype(wlc_hw)) {
+		wiphy_err(wiphy, "wl%d: brcms_b_attach: Unsupported Broadcom "
+			  "board type (0x%x)" " or revision level (0x%x)\n",
+			  unit, ai_get_boardtype(wlc_hw->sih),
+			  wlc_hw->boardrev);
+		err = 15;
+		goto fail;
+	}
+	wlc_hw->sromrev = sprom->revision;
+	wlc_hw->boardflags = sprom->boardflags_lo + (sprom->boardflags_hi << 16);
+	wlc_hw->boardflags2 = sprom->boardflags2_lo + (sprom->boardflags2_hi << 16);
+
+	if (wlc_hw->boardflags & BFL_NOPLLDOWN)
+		brcms_b_pllreq(wlc_hw, true, BRCMS_PLLREQ_SHARED);
+
+	/* check device id(srom, nvram etc.) to set bands */
+	if (wlc_hw->deviceid == BCM43224_D11N_ID ||
+	    wlc_hw->deviceid == BCM43224_D11N_ID_VEN1 ||
+	    wlc_hw->deviceid == BCM43224_CHIP_ID)
+		/* Dualband boards */
+		wlc_hw->_nbands = 2;
+	else
+		wlc_hw->_nbands = 1;
+
+	if ((ai_get_chip_id(wlc_hw->sih) == BCMA_CHIP_ID_BCM43225))
+		wlc_hw->_nbands = 1;
+
+	/* BMAC_NOTE: remove init of pub values when brcms_c_attach()
+	 * unconditionally does the init of these values
+	 */
+	wlc->vendorid = wlc_hw->vendorid;
+	wlc->deviceid = wlc_hw->deviceid;
+	wlc->pub->sih = wlc_hw->sih;
+	wlc->pub->corerev = wlc_hw->corerev;
+	wlc->pub->sromrev = wlc_hw->sromrev;
+	wlc->pub->boardrev = wlc_hw->boardrev;
+	wlc->pub->boardflags = wlc_hw->boardflags;
+	wlc->pub->boardflags2 = wlc_hw->boardflags2;
+	wlc->pub->_nbands = wlc_hw->_nbands;
+
+	wlc_hw->physhim = wlc_phy_shim_attach(wlc_hw, wlc->wl, wlc);
+
+	if (wlc_hw->physhim == NULL) {
+		wiphy_err(wiphy, "wl%d: brcms_b_attach: wlc_phy_shim_attach "
+			"failed\n", unit);
+		err = 25;
+		goto fail;
+	}
+
+	/* pass all the parameters to wlc_phy_shared_attach in one struct */
+	sha_params.sih = wlc_hw->sih;
+	sha_params.physhim = wlc_hw->physhim;
+	sha_params.unit = unit;
+	sha_params.corerev = wlc_hw->corerev;
+	sha_params.vid = wlc_hw->vendorid;
+	sha_params.did = wlc_hw->deviceid;
+	sha_params.chip = ai_get_chip_id(wlc_hw->sih);
+	sha_params.chiprev = ai_get_chiprev(wlc_hw->sih);
+	sha_params.chippkg = ai_get_chippkg(wlc_hw->sih);
+	sha_params.sromrev = wlc_hw->sromrev;
+	sha_params.boardtype = ai_get_boardtype(wlc_hw->sih);
+	sha_params.boardrev = wlc_hw->boardrev;
+	sha_params.boardflags = wlc_hw->boardflags;
+	sha_params.boardflags2 = wlc_hw->boardflags2;
+
+	/* alloc and save pointer to shared phy state area */
+	wlc_hw->phy_sh = wlc_phy_shared_attach(&sha_params);
+	if (!wlc_hw->phy_sh) {
+		err = 16;
+		goto fail;
+	}
+
+	/* initialize software state for each core and band */
+	for (j = 0; j < wlc_hw->_nbands; j++) {
+		/*
+		 * band0 is always 2.4Ghz
+		 * band1, if present, is 5Ghz
+		 */
+
+		brcms_c_setxband(wlc_hw, j);
+
+		wlc_hw->band->bandunit = j;
+		wlc_hw->band->bandtype = j ? BRCM_BAND_5G : BRCM_BAND_2G;
+		wlc->band->bandunit = j;
+		wlc->band->bandtype = j ? BRCM_BAND_5G : BRCM_BAND_2G;
+		wlc->core->coreidx = core->core_index;
+
+		wlc_hw->machwcap = bcma_read32(core, D11REGOFFS(machwcap));
+		wlc_hw->machwcap_backup = wlc_hw->machwcap;
+
+		/* init tx fifo size */
+		WARN_ON(wlc_hw->corerev < XMTFIFOTBL_STARTREV ||
+			(wlc_hw->corerev - XMTFIFOTBL_STARTREV) >
+				ARRAY_SIZE(xmtfifo_sz));
+		wlc_hw->xmtfifo_sz =
+		    xmtfifo_sz[(wlc_hw->corerev - XMTFIFOTBL_STARTREV)];
+		WARN_ON(!wlc_hw->xmtfifo_sz[0]);
+
+		/* Get a phy for this band */
+		wlc_hw->band->pi =
+			wlc_phy_attach(wlc_hw->phy_sh, core,
+				       wlc_hw->band->bandtype,
+				       wlc->wiphy);
+		if (wlc_hw->band->pi == NULL) {
+			wiphy_err(wiphy, "wl%d: brcms_b_attach: wlc_phy_"
+				  "attach failed\n", unit);
+			err = 17;
+			goto fail;
+		}
+
+		wlc_phy_machwcap_set(wlc_hw->band->pi, wlc_hw->machwcap);
+
+		wlc_phy_get_phyversion(wlc_hw->band->pi, &wlc_hw->band->phytype,
+				       &wlc_hw->band->phyrev,
+				       &wlc_hw->band->radioid,
+				       &wlc_hw->band->radiorev);
+		wlc_hw->band->abgphy_encore =
+		    wlc_phy_get_encore(wlc_hw->band->pi);
+		wlc->band->abgphy_encore = wlc_phy_get_encore(wlc_hw->band->pi);
+		wlc_hw->band->core_flags =
+		    wlc_phy_get_coreflags(wlc_hw->band->pi);
+
+		/* verify good phy_type & supported phy revision */
+		if (BRCMS_ISNPHY(wlc_hw->band)) {
+			if (NCONF_HAS(wlc_hw->band->phyrev))
+				goto good_phy;
+			else
+				goto bad_phy;
+		} else if (BRCMS_ISLCNPHY(wlc_hw->band)) {
+			if (LCNCONF_HAS(wlc_hw->band->phyrev))
+				goto good_phy;
+			else
+				goto bad_phy;
+		} else {
+ bad_phy:
+			wiphy_err(wiphy, "wl%d: brcms_b_attach: unsupported "
+				  "phy type/rev (%d/%d)\n", unit,
+				  wlc_hw->band->phytype, wlc_hw->band->phyrev);
+			err = 18;
+			goto fail;
+		}
+
+ good_phy:
+		/*
+		 * BMAC_NOTE: wlc->band->pi should not be set below and should
+		 * be done in the high level attach. However we can not make
+		 * that change until all low level access is changed to
+		 * wlc_hw->band->pi. Instead do the wlc->band->pi init below,
+		 * keeping wlc_hw->band->pi as well for incremental update of
+		 * low level fns, and cut over low only init when all fns
+		 * updated.
+		 */
+		wlc->band->pi = wlc_hw->band->pi;
+		wlc->band->phytype = wlc_hw->band->phytype;
+		wlc->band->phyrev = wlc_hw->band->phyrev;
+		wlc->band->radioid = wlc_hw->band->radioid;
+		wlc->band->radiorev = wlc_hw->band->radiorev;
+		brcms_dbg_info(core, "wl%d: phy %u/%u radio %x/%u\n", unit,
+			       wlc->band->phytype, wlc->band->phyrev,
+			       wlc->band->radioid, wlc->band->radiorev);
+		/* default contention windows size limits */
+		wlc_hw->band->CWmin = APHY_CWMIN;
+		wlc_hw->band->CWmax = PHY_CWMAX;
+
+		if (!brcms_b_attach_dmapio(wlc, j, wme)) {
+			err = 19;
+			goto fail;
+		}
+	}
+
+	/* disable core to match driver "down" state */
+	brcms_c_coredisable(wlc_hw);
+
+	/* Match driver "down" state */
+	bcma_host_pci_down(wlc_hw->d11core->bus);
+
+	/* turn off pll and xtal to match driver "down" state */
+	brcms_b_xtal(wlc_hw, OFF);
+
+	/* *******************************************************************
+	 * The hardware is in the DOWN state at this point. D11 core
+	 * or cores are in reset with clocks off, and the board PLLs
+	 * are off if possible.
+	 *
+	 * Beyond this point, wlc->sbclk == false and chip registers
+	 * should not be touched.
+	 *********************************************************************
+	 */
+
+	/* init etheraddr state variables */
+	brcms_c_get_macaddr(wlc_hw, wlc_hw->etheraddr);
+
+	if (is_broadcast_ether_addr(wlc_hw->etheraddr) ||
+	    is_zero_ether_addr(wlc_hw->etheraddr)) {
+		wiphy_err(wiphy, "wl%d: brcms_b_attach: bad macaddr\n",
+			  unit);
+		err = 22;
+		goto fail;
+	}
+
+	brcms_dbg_info(wlc_hw->d11core, "deviceid 0x%x nbands %d board 0x%x\n",
+		       wlc_hw->deviceid, wlc_hw->_nbands,
+		       ai_get_boardtype(wlc_hw->sih));
+
+	return err;
+
+ fail:
+	wiphy_err(wiphy, "wl%d: brcms_b_attach: failed with err %d\n", unit,
+		  err);
+	return err;
+}
+
+static bool brcms_c_attach_stf_ant_init(struct brcms_c_info *wlc)
+{
+	int aa;
+	uint unit;
+	int bandtype;
+	struct ssb_sprom *sprom = &wlc->hw->d11core->bus->sprom;
+
+	unit = wlc->pub->unit;
+	bandtype = wlc->band->bandtype;
+
+	/* get antennas available */
+	if (bandtype == BRCM_BAND_5G)
+		aa = sprom->ant_available_a;
+	else
+		aa = sprom->ant_available_bg;
+
+	if ((aa < 1) || (aa > 15)) {
+		wiphy_err(wlc->wiphy, "wl%d: %s: Invalid antennas available in"
+			  " srom (0x%x), using 3\n", unit, __func__, aa);
+		aa = 3;
+	}
+
+	/* reset the defaults if we have a single antenna */
+	if (aa == 1) {
+		wlc->stf->ant_rx_ovr = ANT_RX_DIV_FORCE_0;
+		wlc->stf->txant = ANT_TX_FORCE_0;
+	} else if (aa == 2) {
+		wlc->stf->ant_rx_ovr = ANT_RX_DIV_FORCE_1;
+		wlc->stf->txant = ANT_TX_FORCE_1;
+	} else {
+	}
+
+	/* Compute Antenna Gain */
+	if (bandtype == BRCM_BAND_5G)
+		wlc->band->antgain = sprom->antenna_gain.a1;
+	else
+		wlc->band->antgain = sprom->antenna_gain.a0;
+
+	return true;
+}
+
+static void brcms_c_bss_default_init(struct brcms_c_info *wlc)
+{
+	u16 chanspec;
+	struct brcms_band *band;
+	struct brcms_bss_info *bi = wlc->default_bss;
+
+	/* init default and target BSS with some sane initial values */
+	memset(bi, 0, sizeof(*bi));
+	bi->beacon_period = BEACON_INTERVAL_DEFAULT;
+
+	/* fill the default channel as the first valid channel
+	 * starting from the 2G channels
+	 */
+	chanspec = ch20mhz_chspec(1);
+	wlc->home_chanspec = bi->chanspec = chanspec;
+
+	/* find the band of our default channel */
+	band = wlc->band;
+	if (wlc->pub->_nbands > 1 &&
+	    band->bandunit != chspec_bandunit(chanspec))
+		band = wlc->bandstate[OTHERBANDUNIT(wlc)];
+
+	/* init bss rates to the band specific default rate set */
+	brcms_c_rateset_default(&bi->rateset, NULL, band->phytype,
+		band->bandtype, false, BRCMS_RATE_MASK_FULL,
+		(bool) (wlc->pub->_n_enab & SUPPORT_11N),
+		brcms_chspec_bw(chanspec), wlc->stf->txstreams);
+
+	if (wlc->pub->_n_enab & SUPPORT_11N)
+		bi->flags |= BRCMS_BSS_HT;
+}
+
+static void brcms_c_update_mimo_band_bwcap(struct brcms_c_info *wlc, u8 bwcap)
+{
+	uint i;
+	struct brcms_band *band;
+
+	for (i = 0; i < wlc->pub->_nbands; i++) {
+		band = wlc->bandstate[i];
+		if (band->bandtype == BRCM_BAND_5G) {
+			if ((bwcap == BRCMS_N_BW_40ALL)
+			    || (bwcap == BRCMS_N_BW_20IN2G_40IN5G))
+				band->mimo_cap_40 = true;
+			else
+				band->mimo_cap_40 = false;
+		} else {
+			if (bwcap == BRCMS_N_BW_40ALL)
+				band->mimo_cap_40 = true;
+			else
+				band->mimo_cap_40 = false;
+		}
+	}
+}
+
+static void brcms_c_timers_deinit(struct brcms_c_info *wlc)
+{
+	/* free timer state */
+	if (wlc->wdtimer) {
+		brcms_free_timer(wlc->wdtimer);
+		wlc->wdtimer = NULL;
+	}
+	if (wlc->radio_timer) {
+		brcms_free_timer(wlc->radio_timer);
+		wlc->radio_timer = NULL;
+	}
+}
+
+static void brcms_c_detach_module(struct brcms_c_info *wlc)
+{
+	if (wlc->asi) {
+		brcms_c_antsel_detach(wlc->asi);
+		wlc->asi = NULL;
+	}
+
+	if (wlc->ampdu) {
+		brcms_c_ampdu_detach(wlc->ampdu);
+		wlc->ampdu = NULL;
+	}
+
+	brcms_c_stf_detach(wlc);
+}
+
+/*
+ * low level detach
+ */
+static void brcms_b_detach(struct brcms_c_info *wlc)
+{
+	uint i;
+	struct brcms_hw_band *band;
+	struct brcms_hardware *wlc_hw = wlc->hw;
+
+	brcms_b_detach_dmapio(wlc_hw);
+
+	band = wlc_hw->band;
+	for (i = 0; i < wlc_hw->_nbands; i++) {
+		if (band->pi) {
+			/* Detach this band's phy */
+			wlc_phy_detach(band->pi);
+			band->pi = NULL;
+		}
+		band = wlc_hw->bandstate[OTHERBANDUNIT(wlc)];
+	}
+
+	/* Free shared phy state */
+	kfree(wlc_hw->phy_sh);
+
+	wlc_phy_shim_detach(wlc_hw->physhim);
+
+	if (wlc_hw->sih) {
+		ai_detach(wlc_hw->sih);
+		wlc_hw->sih = NULL;
+	}
+}
+
+/*
+ * Return a count of the number of driver callbacks still pending.
+ *
+ * General policy is that brcms_c_detach can only dealloc/free software states.
+ * It can NOT touch hardware registers since the d11core may be in reset and
+ * clock may not be available.
+ * One exception is sb register access, which is possible if crystal is turned
+ * on after "down" state, driver should avoid software timer with the exception
+ * of radio_monitor.
+ */
+uint brcms_c_detach(struct brcms_c_info *wlc)
+{
+	uint callbacks;
+
+	if (wlc == NULL)
+		return 0;
+
+	brcms_b_detach(wlc);
+
+	/* delete software timers */
+	callbacks = 0;
+	if (!brcms_c_radio_monitor_stop(wlc))
+		callbacks++;
+
+	brcms_c_channel_mgr_detach(wlc->cmi);
+
+	brcms_c_timers_deinit(wlc);
+
+	brcms_c_detach_module(wlc);
+
+	brcms_c_detach_mfree(wlc);
+	return callbacks;
+}
+
+/* update state that depends on the current value of "ap" */
+static void brcms_c_ap_upd(struct brcms_c_info *wlc)
+{
+	/* STA-BSS; short capable */
+	wlc->PLCPHdr_override = BRCMS_PLCP_SHORT;
+}
+
+/* Initialize just the hardware when coming out of POR or S3/S5 system states */
+static void brcms_b_hw_up(struct brcms_hardware *wlc_hw)
+{
+	if (wlc_hw->wlc->pub->hw_up)
+		return;
+
+	brcms_dbg_info(wlc_hw->d11core, "wl%d\n", wlc_hw->unit);
+
+	/*
+	 * Enable pll and xtal, initialize the power control registers,
+	 * and force fastclock for the remainder of brcms_c_up().
+	 */
+	brcms_b_xtal(wlc_hw, ON);
+	ai_clkctl_init(wlc_hw->sih);
+	brcms_b_clkctl_clk(wlc_hw, BCMA_CLKMODE_FAST);
+
+	/*
+	 * TODO: test suspend/resume
+	 *
+	 * AI chip doesn't restore bar0win2 on
+	 * hibernation/resume, need sw fixup
+	 */
+
+	/*
+	 * Inform phy that a POR reset has occurred so
+	 * it does a complete phy init
+	 */
+	wlc_phy_por_inform(wlc_hw->band->pi);
+
+	wlc_hw->ucode_loaded = false;
+	wlc_hw->wlc->pub->hw_up = true;
+
+	if ((wlc_hw->boardflags & BFL_FEM)
+	    && (ai_get_chip_id(wlc_hw->sih) == BCMA_CHIP_ID_BCM4313)) {
+		if (!
+		    (wlc_hw->boardrev >= 0x1250
+		     && (wlc_hw->boardflags & BFL_FEM_BT)))
+			ai_epa_4313war(wlc_hw->sih);
+	}
+}
+
+static int brcms_b_up_prep(struct brcms_hardware *wlc_hw)
+{
+	brcms_dbg_info(wlc_hw->d11core, "wl%d\n", wlc_hw->unit);
+
+	/*
+	 * Enable pll and xtal, initialize the power control registers,
+	 * and force fastclock for the remainder of brcms_c_up().
+	 */
+	brcms_b_xtal(wlc_hw, ON);
+	ai_clkctl_init(wlc_hw->sih);
+	brcms_b_clkctl_clk(wlc_hw, BCMA_CLKMODE_FAST);
+
+	/*
+	 * Configure pci/pcmcia here instead of in brcms_c_attach()
+	 * to allow mfg hotswap:  down, hotswap (chip power cycle), up.
+	 */
+	bcma_host_pci_irq_ctl(wlc_hw->d11core->bus, wlc_hw->d11core,
+			      true);
+
+	/*
+	 * Need to read the hwradio status here to cover the case where the
+	 * system is loaded with the hw radio disabled. We do not want to
+	 * bring the driver up in this case.
+	 */
+	if (brcms_b_radio_read_hwdisabled(wlc_hw)) {
+		/* put SB PCI in down state again */
+		bcma_host_pci_down(wlc_hw->d11core->bus);
+		brcms_b_xtal(wlc_hw, OFF);
+		return -ENOMEDIUM;
+	}
+
+	bcma_host_pci_up(wlc_hw->d11core->bus);
+
+	/* reset the d11 core */
+	brcms_b_corereset(wlc_hw, BRCMS_USE_COREFLAGS);
+
+	return 0;
+}
+
+static int brcms_b_up_finish(struct brcms_hardware *wlc_hw)
+{
+	wlc_hw->up = true;
+	wlc_phy_hw_state_upd(wlc_hw->band->pi, true);
+
+	/* FULLY enable dynamic power control and d11 core interrupt */
+	brcms_b_clkctl_clk(wlc_hw, BCMA_CLKMODE_DYNAMIC);
+	brcms_intrson(wlc_hw->wlc->wl);
+	return 0;
+}
+
+/*
+ * Write WME tunable parameters for retransmit/max rate
+ * from wlc struct to ucode
+ */
+static void brcms_c_wme_retries_write(struct brcms_c_info *wlc)
+{
+	int ac;
+
+	/* Need clock to do this */
+	if (!wlc->clk)
+		return;
+
+	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
+		brcms_b_write_shm(wlc->hw, M_AC_TXLMT_ADDR(ac),
+				  wlc->wme_retries[ac]);
+}
+
+/* make interface operational */
+int brcms_c_up(struct brcms_c_info *wlc)
+{
+	struct ieee80211_channel *ch;
+
+	brcms_dbg_info(wlc->hw->d11core, "wl%d\n", wlc->pub->unit);
+
+	/* HW is turned off so don't try to access it */
+	if (wlc->pub->hw_off || brcms_deviceremoved(wlc))
+		return -ENOMEDIUM;
+
+	if (!wlc->pub->hw_up) {
+		brcms_b_hw_up(wlc->hw);
+		wlc->pub->hw_up = true;
+	}
+
+	if ((wlc->pub->boardflags & BFL_FEM)
+	    && (ai_get_chip_id(wlc->hw->sih) == BCMA_CHIP_ID_BCM4313)) {
+		if (wlc->pub->boardrev >= 0x1250
+		    && (wlc->pub->boardflags & BFL_FEM_BT))
+			brcms_b_mhf(wlc->hw, MHF5, MHF5_4313_GPIOCTRL,
+				MHF5_4313_GPIOCTRL, BRCM_BAND_ALL);
+		else
+			brcms_b_mhf(wlc->hw, MHF4, MHF4_EXTPA_ENABLE,
+				    MHF4_EXTPA_ENABLE, BRCM_BAND_ALL);
+	}
+
+	/*
+	 * Need to read the hwradio status here to cover the case where the
+	 * system is loaded with the hw radio disabled. We do not want to bring
+	 * the driver up in this case. If radio is disabled, abort up, lower
+	 * power, start radio timer and return 0(for NDIS) don't call
+	 * radio_update to avoid looping brcms_c_up.
+	 *
+	 * brcms_b_up_prep() returns either 0 or -BCME_RADIOOFF only
+	 */
+	if (!wlc->pub->radio_disabled) {
+		int status = brcms_b_up_prep(wlc->hw);
+		if (status == -ENOMEDIUM) {
+			if (!mboolisset
+			    (wlc->pub->radio_disabled, WL_RADIO_HW_DISABLE)) {
+				struct brcms_bss_cfg *bsscfg = wlc->bsscfg;
+				mboolset(wlc->pub->radio_disabled,
+					 WL_RADIO_HW_DISABLE);
+				if (bsscfg->type == BRCMS_TYPE_STATION ||
+				    bsscfg->type == BRCMS_TYPE_ADHOC)
+					brcms_err(wlc->hw->d11core,
+						  "wl%d: up: rfdisable -> "
+						  "bsscfg_disable()\n",
+						   wlc->pub->unit);
+			}
+		}
+	}
+
+	if (wlc->pub->radio_disabled) {
+		brcms_c_radio_monitor_start(wlc);
+		return 0;
+	}
+
+	/* brcms_b_up_prep has done brcms_c_corereset(). so clk is on, set it */
+	wlc->clk = true;
+
+	brcms_c_radio_monitor_stop(wlc);
+
+	/* Set EDCF hostflags */
+	brcms_b_mhf(wlc->hw, MHF1, MHF1_EDCF, MHF1_EDCF, BRCM_BAND_ALL);
+
+	brcms_init(wlc->wl);
+	wlc->pub->up = true;
+
+	if (wlc->bandinit_pending) {
+		ch = wlc->pub->ieee_hw->conf.chandef.chan;
+		brcms_c_suspend_mac_and_wait(wlc);
+		brcms_c_set_chanspec(wlc, ch20mhz_chspec(ch->hw_value));
+		wlc->bandinit_pending = false;
+		brcms_c_enable_mac(wlc);
+	}
+
+	brcms_b_up_finish(wlc->hw);
+
+	/* Program the TX wme params with the current settings */
+	brcms_c_wme_retries_write(wlc);
+
+	/* start one second watchdog timer */
+	brcms_add_timer(wlc->wdtimer, TIMER_INTERVAL_WATCHDOG, true);
+	wlc->WDarmed = true;
+
+	/* ensure antenna config is up to date */
+	brcms_c_stf_phy_txant_upd(wlc);
+	/* ensure LDPC config is in sync */
+	brcms_c_ht_update_ldpc(wlc, wlc->stf->ldpc);
+
+	return 0;
+}
+
+static uint brcms_c_down_del_timer(struct brcms_c_info *wlc)
+{
+	uint callbacks = 0;
+
+	return callbacks;
+}
+
+static int brcms_b_bmac_down_prep(struct brcms_hardware *wlc_hw)
+{
+	bool dev_gone;
+	uint callbacks = 0;
+
+	if (!wlc_hw->up)
+		return callbacks;
+
+	dev_gone = brcms_deviceremoved(wlc_hw->wlc);
+
+	/* disable interrupts */
+	if (dev_gone)
+		wlc_hw->wlc->macintmask = 0;
+	else {
+		/* now disable interrupts */
+		brcms_intrsoff(wlc_hw->wlc->wl);
+
+		/* ensure we're running on the pll clock again */
+		brcms_b_clkctl_clk(wlc_hw, BCMA_CLKMODE_FAST);
+	}
+	/* down phy at the last of this stage */
+	callbacks += wlc_phy_down(wlc_hw->band->pi);
+
+	return callbacks;
+}
+
+static int brcms_b_down_finish(struct brcms_hardware *wlc_hw)
+{
+	uint callbacks = 0;
+	bool dev_gone;
+
+	if (!wlc_hw->up)
+		return callbacks;
+
+	wlc_hw->up = false;
+	wlc_phy_hw_state_upd(wlc_hw->band->pi, false);
+
+	dev_gone = brcms_deviceremoved(wlc_hw->wlc);
+
+	if (dev_gone) {
+		wlc_hw->sbclk = false;
+		wlc_hw->clk = false;
+		wlc_phy_hw_clk_state_upd(wlc_hw->band->pi, false);
+
+		/* reclaim any posted packets */
+		brcms_c_flushqueues(wlc_hw->wlc);
+	} else {
+
+		/* Reset and disable the core */
+		if (bcma_core_is_enabled(wlc_hw->d11core)) {
+			if (bcma_read32(wlc_hw->d11core,
+					D11REGOFFS(maccontrol)) & MCTL_EN_MAC)
+				brcms_c_suspend_mac_and_wait(wlc_hw->wlc);
+			callbacks += brcms_reset(wlc_hw->wlc->wl);
+			brcms_c_coredisable(wlc_hw);
+		}
+
+		/* turn off primary xtal and pll */
+		if (!wlc_hw->noreset) {
+			bcma_host_pci_down(wlc_hw->d11core->bus);
+			brcms_b_xtal(wlc_hw, OFF);
+		}
+	}
+
+	return callbacks;
+}
+
+/*
+ * Mark the interface nonoperational, stop the software mechanisms,
+ * disable the hardware, free any transient buffer state.
+ * Return a count of the number of driver callbacks still pending.
+ */
+uint brcms_c_down(struct brcms_c_info *wlc)
+{
+
+	uint callbacks = 0;
+	int i;
+	bool dev_gone = false;
+
+	brcms_dbg_info(wlc->hw->d11core, "wl%d\n", wlc->pub->unit);
+
+	/* check if we are already in the going down path */
+	if (wlc->going_down) {
+		brcms_err(wlc->hw->d11core,
+			  "wl%d: %s: Driver going down so return\n",
+			  wlc->pub->unit, __func__);
+		return 0;
+	}
+	if (!wlc->pub->up)
+		return callbacks;
+
+	wlc->going_down = true;
+
+	callbacks += brcms_b_bmac_down_prep(wlc->hw);
+
+	dev_gone = brcms_deviceremoved(wlc);
+
+	/* Call any registered down handlers */
+	for (i = 0; i < BRCMS_MAXMODULES; i++) {
+		if (wlc->modulecb[i].down_fn)
+			callbacks +=
+			    wlc->modulecb[i].down_fn(wlc->modulecb[i].hdl);
+	}
+
+	/* cancel the watchdog timer */
+	if (wlc->WDarmed) {
+		if (!brcms_del_timer(wlc->wdtimer))
+			callbacks++;
+		wlc->WDarmed = false;
+	}
+	/* cancel all other timers */
+	callbacks += brcms_c_down_del_timer(wlc);
+
+	wlc->pub->up = false;
+
+	wlc_phy_mute_upd(wlc->band->pi, false, PHY_MUTE_ALL);
+
+	callbacks += brcms_b_down_finish(wlc->hw);
+
+	/* brcms_b_down_finish has done brcms_c_coredisable(). so clk is off */
+	wlc->clk = false;
+
+	wlc->going_down = false;
+	return callbacks;
+}
+
+/* Set the current gmode configuration */
+int brcms_c_set_gmode(struct brcms_c_info *wlc, u8 gmode, bool config)
+{
+	int ret = 0;
+	uint i;
+	struct brcms_c_rateset rs;
+	/* Default to 54g Auto */
+	/* Advertise and use shortslot (-1/0/1 Auto/Off/On) */
+	s8 shortslot = BRCMS_SHORTSLOT_AUTO;
+	bool shortslot_restrict = false; /* Restrict association to stations
+					  * that support shortslot
+					  */
+	bool ofdm_basic = false;	/* Make 6, 12, and 24 basic rates */
+	/* Advertise and use short preambles (-1/0/1 Auto/Off/On) */
+	int preamble = BRCMS_PLCP_LONG;
+	bool preamble_restrict = false;	/* Restrict association to stations
+					 * that support short preambles
+					 */
+	struct brcms_band *band;
+
+	/* if N-support is enabled, allow Gmode set as long as requested
+	 * Gmode is not GMODE_LEGACY_B
+	 */
+	if ((wlc->pub->_n_enab & SUPPORT_11N) && gmode == GMODE_LEGACY_B)
+		return -ENOTSUPP;
+
+	/* verify that we are dealing with 2G band and grab the band pointer */
+	if (wlc->band->bandtype == BRCM_BAND_2G)
+		band = wlc->band;
+	else if ((wlc->pub->_nbands > 1) &&
+		 (wlc->bandstate[OTHERBANDUNIT(wlc)]->bandtype == BRCM_BAND_2G))
+		band = wlc->bandstate[OTHERBANDUNIT(wlc)];
+	else
+		return -EINVAL;
+
+	/* update configuration value */
+	if (config)
+		brcms_c_protection_upd(wlc, BRCMS_PROT_G_USER, gmode);
+
+	/* Clear rateset override */
+	memset(&rs, 0, sizeof(rs));
+
+	switch (gmode) {
+	case GMODE_LEGACY_B:
+		shortslot = BRCMS_SHORTSLOT_OFF;
+		brcms_c_rateset_copy(&gphy_legacy_rates, &rs);
+
+		break;
+
+	case GMODE_LRS:
+		break;
+
+	case GMODE_AUTO:
+		/* Accept defaults */
+		break;
+
+	case GMODE_ONLY:
+		ofdm_basic = true;
+		preamble = BRCMS_PLCP_SHORT;
+		preamble_restrict = true;
+		break;
+
+	case GMODE_PERFORMANCE:
+		shortslot = BRCMS_SHORTSLOT_ON;
+		shortslot_restrict = true;
+		ofdm_basic = true;
+		preamble = BRCMS_PLCP_SHORT;
+		preamble_restrict = true;
+		break;
+
+	default:
+		/* Error */
+		brcms_err(wlc->hw->d11core, "wl%d: %s: invalid gmode %d\n",
+			  wlc->pub->unit, __func__, gmode);
+		return -ENOTSUPP;
+	}
+
+	band->gmode = gmode;
+
+	wlc->shortslot_override = shortslot;
+
+	/* Use the default 11g rateset */
+	if (!rs.count)
+		brcms_c_rateset_copy(&cck_ofdm_rates, &rs);
+
+	if (ofdm_basic) {
+		for (i = 0; i < rs.count; i++) {
+			if (rs.rates[i] == BRCM_RATE_6M
+			    || rs.rates[i] == BRCM_RATE_12M
+			    || rs.rates[i] == BRCM_RATE_24M)
+				rs.rates[i] |= BRCMS_RATE_FLAG;
+		}
+	}
+
+	/* Set default bss rateset */
+	wlc->default_bss->rateset.count = rs.count;
+	memcpy(wlc->default_bss->rateset.rates, rs.rates,
+	       sizeof(wlc->default_bss->rateset.rates));
+
+	return ret;
+}
+
+int brcms_c_set_nmode(struct brcms_c_info *wlc)
+{
+	uint i;
+	s32 nmode = AUTO;
+
+	if (wlc->stf->txstreams == WL_11N_3x3)
+		nmode = WL_11N_3x3;
+	else
+		nmode = WL_11N_2x2;
+
+	/* force GMODE_AUTO if NMODE is ON */
+	brcms_c_set_gmode(wlc, GMODE_AUTO, true);
+	if (nmode == WL_11N_3x3)
+		wlc->pub->_n_enab = SUPPORT_HT;
+	else
+		wlc->pub->_n_enab = SUPPORT_11N;
+	wlc->default_bss->flags |= BRCMS_BSS_HT;
+	/* add the mcs rates to the default and hw ratesets */
+	brcms_c_rateset_mcs_build(&wlc->default_bss->rateset,
+			      wlc->stf->txstreams);
+	for (i = 0; i < wlc->pub->_nbands; i++)
+		memcpy(wlc->bandstate[i]->hw_rateset.mcs,
+		       wlc->default_bss->rateset.mcs, MCSSET_LEN);
+
+	return 0;
+}
+
+static int
+brcms_c_set_internal_rateset(struct brcms_c_info *wlc,
+			     struct brcms_c_rateset *rs_arg)
+{
+	struct brcms_c_rateset rs, new;
+	uint bandunit;
+
+	memcpy(&rs, rs_arg, sizeof(struct brcms_c_rateset));
+
+	/* check for bad count value */
+	if ((rs.count == 0) || (rs.count > BRCMS_NUMRATES))
+		return -EINVAL;
+
+	/* try the current band */
+	bandunit = wlc->band->bandunit;
+	memcpy(&new, &rs, sizeof(struct brcms_c_rateset));
+	if (brcms_c_rate_hwrs_filter_sort_validate
+	    (&new, &wlc->bandstate[bandunit]->hw_rateset, true,
+	     wlc->stf->txstreams))
+		goto good;
+
+	/* try the other band */
+	if (brcms_is_mband_unlocked(wlc)) {
+		bandunit = OTHERBANDUNIT(wlc);
+		memcpy(&new, &rs, sizeof(struct brcms_c_rateset));
+		if (brcms_c_rate_hwrs_filter_sort_validate(&new,
+						       &wlc->
+						       bandstate[bandunit]->
+						       hw_rateset, true,
+						       wlc->stf->txstreams))
+			goto good;
+	}
+
+	return -EBADE;
+
+ good:
+	/* apply new rateset */
+	memcpy(&wlc->default_bss->rateset, &new,
+	       sizeof(struct brcms_c_rateset));
+	memcpy(&wlc->bandstate[bandunit]->defrateset, &new,
+	       sizeof(struct brcms_c_rateset));
+	return 0;
+}
+
+static void brcms_c_ofdm_rateset_war(struct brcms_c_info *wlc)
+{
+	u8 r;
+	bool war = false;
+
+	if (wlc->pub->associated)
+		r = wlc->bsscfg->current_bss->rateset.rates[0];
+	else
+		r = wlc->default_bss->rateset.rates[0];
+
+	wlc_phy_ofdm_rateset_war(wlc->band->pi, war);
+}
+
+int brcms_c_set_channel(struct brcms_c_info *wlc, u16 channel)
+{
+	u16 chspec = ch20mhz_chspec(channel);
+
+	if (channel < 0 || channel > MAXCHANNEL)
+		return -EINVAL;
+
+	if (!brcms_c_valid_chanspec_db(wlc->cmi, chspec))
+		return -EINVAL;
+
+
+	if (!wlc->pub->up && brcms_is_mband_unlocked(wlc)) {
+		if (wlc->band->bandunit != chspec_bandunit(chspec))
+			wlc->bandinit_pending = true;
+		else
+			wlc->bandinit_pending = false;
+	}
+
+	wlc->default_bss->chanspec = chspec;
+	/* brcms_c_BSSinit() will sanitize the rateset before
+	 * using it.. */
+	if (wlc->pub->up && (wlc_phy_chanspec_get(wlc->band->pi) != chspec)) {
+		brcms_c_set_home_chanspec(wlc, chspec);
+		brcms_c_suspend_mac_and_wait(wlc);
+		brcms_c_set_chanspec(wlc, chspec);
+		brcms_c_enable_mac(wlc);
+	}
+	return 0;
+}
+
+int brcms_c_set_rate_limit(struct brcms_c_info *wlc, u16 srl, u16 lrl)
+{
+	int ac;
+
+	if (srl < 1 || srl > RETRY_SHORT_MAX ||
+	    lrl < 1 || lrl > RETRY_SHORT_MAX)
+		return -EINVAL;
+
+	wlc->SRL = srl;
+	wlc->LRL = lrl;
+
+	brcms_b_retrylimit_upd(wlc->hw, wlc->SRL, wlc->LRL);
+
+	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
+		wlc->wme_retries[ac] =	SFIELD(wlc->wme_retries[ac],
+					       EDCF_SHORT,  wlc->SRL);
+		wlc->wme_retries[ac] =	SFIELD(wlc->wme_retries[ac],
+					       EDCF_LONG, wlc->LRL);
+	}
+	brcms_c_wme_retries_write(wlc);
+
+	return 0;
+}
+
+void brcms_c_get_current_rateset(struct brcms_c_info *wlc,
+				 struct brcm_rateset *currs)
+{
+	struct brcms_c_rateset *rs;
+
+	if (wlc->pub->associated)
+		rs = &wlc->bsscfg->current_bss->rateset;
+	else
+		rs = &wlc->default_bss->rateset;
+
+	/* Copy only legacy rateset section */
+	currs->count = rs->count;
+	memcpy(&currs->rates, &rs->rates, rs->count);
+}
+
+int brcms_c_set_rateset(struct brcms_c_info *wlc, struct brcm_rateset *rs)
+{
+	struct brcms_c_rateset internal_rs;
+	int bcmerror;
+
+	if (rs->count > BRCMS_NUMRATES)
+		return -ENOBUFS;
+
+	memset(&internal_rs, 0, sizeof(internal_rs));
+
+	/* Copy only legacy rateset section */
+	internal_rs.count = rs->count;
+	memcpy(&internal_rs.rates, &rs->rates, internal_rs.count);
+
+	/* merge rateset coming in with the current mcsset */
+	if (wlc->pub->_n_enab & SUPPORT_11N) {
+		struct brcms_bss_info *mcsset_bss;
+		if (wlc->pub->associated)
+			mcsset_bss = wlc->bsscfg->current_bss;
+		else
+			mcsset_bss = wlc->default_bss;
+		memcpy(internal_rs.mcs, &mcsset_bss->rateset.mcs[0],
+		       MCSSET_LEN);
+	}
+
+	bcmerror = brcms_c_set_internal_rateset(wlc, &internal_rs);
+	if (!bcmerror)
+		brcms_c_ofdm_rateset_war(wlc);
+
+	return bcmerror;
+}
+
+static void brcms_c_time_lock(struct brcms_c_info *wlc)
+{
+	bcma_set32(wlc->hw->d11core, D11REGOFFS(maccontrol), MCTL_TBTTHOLD);
+	/* Commit the write */
+	bcma_read32(wlc->hw->d11core, D11REGOFFS(maccontrol));
+}
+
+static void brcms_c_time_unlock(struct brcms_c_info *wlc)
+{
+	bcma_mask32(wlc->hw->d11core, D11REGOFFS(maccontrol), ~MCTL_TBTTHOLD);
+	/* Commit the write */
+	bcma_read32(wlc->hw->d11core, D11REGOFFS(maccontrol));
+}
+
+int brcms_c_set_beacon_period(struct brcms_c_info *wlc, u16 period)
+{
+	u32 bcnint_us;
+
+	if (period == 0)
+		return -EINVAL;
+
+	wlc->default_bss->beacon_period = period;
+
+	bcnint_us = period << 10;
+	brcms_c_time_lock(wlc);
+	bcma_write32(wlc->hw->d11core, D11REGOFFS(tsf_cfprep),
+		     (bcnint_us << CFPREP_CBI_SHIFT));
+	bcma_write32(wlc->hw->d11core, D11REGOFFS(tsf_cfpstart), bcnint_us);
+	brcms_c_time_unlock(wlc);
+
+	return 0;
+}
+
+u16 brcms_c_get_phy_type(struct brcms_c_info *wlc, int phyidx)
+{
+	return wlc->band->phytype;
+}
+
+void brcms_c_set_shortslot_override(struct brcms_c_info *wlc, s8 sslot_override)
+{
+	wlc->shortslot_override = sslot_override;
+
+	/*
+	 * shortslot is an 11g feature, so no more work if we are
+	 * currently on the 5G band
+	 */
+	if (wlc->band->bandtype == BRCM_BAND_5G)
+		return;
+
+	if (wlc->pub->up && wlc->pub->associated) {
+		/* let watchdog or beacon processing update shortslot */
+	} else if (wlc->pub->up) {
+		/* unassociated shortslot is off */
+		brcms_c_switch_shortslot(wlc, false);
+	} else {
+		/* driver is down, so just update the brcms_c_info
+		 * value */
+		if (wlc->shortslot_override == BRCMS_SHORTSLOT_AUTO)
+			wlc->shortslot = false;
+		else
+			wlc->shortslot =
+			    (wlc->shortslot_override ==
+			     BRCMS_SHORTSLOT_ON);
+	}
+}
+
+/*
+ * register watchdog and down handlers.
+ */
+int brcms_c_module_register(struct brcms_pub *pub,
+			    const char *name, struct brcms_info *hdl,
+			    int (*d_fn)(void *handle))
+{
+	struct brcms_c_info *wlc = (struct brcms_c_info *) pub->wlc;
+	int i;
+
+	/* find an empty entry and just add, no duplication check! */
+	for (i = 0; i < BRCMS_MAXMODULES; i++) {
+		if (wlc->modulecb[i].name[0] == '\0') {
+			strncpy(wlc->modulecb[i].name, name,
+				sizeof(wlc->modulecb[i].name) - 1);
+			wlc->modulecb[i].hdl = hdl;
+			wlc->modulecb[i].down_fn = d_fn;
+			return 0;
+		}
+	}
+
+	return -ENOSR;
+}
+
+/* unregister module callbacks */
+int brcms_c_module_unregister(struct brcms_pub *pub, const char *name,
+			      struct brcms_info *hdl)
+{
+	struct brcms_c_info *wlc = (struct brcms_c_info *) pub->wlc;
+	int i;
+
+	if (wlc == NULL)
+		return -ENODATA;
+
+	for (i = 0; i < BRCMS_MAXMODULES; i++) {
+		if (!strcmp(wlc->modulecb[i].name, name) &&
+		    (wlc->modulecb[i].hdl == hdl)) {
+			memset(&wlc->modulecb[i], 0, sizeof(wlc->modulecb[i]));
+			return 0;
+		}
+	}
+
+	/* table not found! */
+	return -ENODATA;
+}
+
+static bool brcms_c_chipmatch_pci(struct bcma_device *core)
+{
+	struct pci_dev *pcidev = core->bus->host_pci;
+	u16 vendor = pcidev->vendor;
+	u16 device = pcidev->device;
+
+	if (vendor != PCI_VENDOR_ID_BROADCOM) {
+		pr_err("unknown vendor id %04x\n", vendor);
+		return false;
+	}
+
+	if (device == BCM43224_D11N_ID_VEN1 || device == BCM43224_CHIP_ID)
+		return true;
+	if ((device == BCM43224_D11N_ID) || (device == BCM43225_D11N2G_ID))
+		return true;
+	if (device == BCM4313_D11N2G_ID || device == BCM4313_CHIP_ID)
+		return true;
+	if ((device == BCM43236_D11N_ID) || (device == BCM43236_D11N2G_ID))
+		return true;
+
+	pr_err("unknown device id %04x\n", device);
+	return false;
+}
+
+static bool brcms_c_chipmatch_soc(struct bcma_device *core)
+{
+	struct bcma_chipinfo *chipinfo = &core->bus->chipinfo;
+
+	if (chipinfo->id == BCMA_CHIP_ID_BCM4716)
+		return true;
+
+	pr_err("unknown chip id %04x\n", chipinfo->id);
+	return false;
+}
+
+bool brcms_c_chipmatch(struct bcma_device *core)
+{
+	switch (core->bus->hosttype) {
+	case BCMA_HOSTTYPE_PCI:
+		return brcms_c_chipmatch_pci(core);
+	case BCMA_HOSTTYPE_SOC:
+		return brcms_c_chipmatch_soc(core);
+	default:
+		pr_err("unknown host type: %i\n", core->bus->hosttype);
+		return false;
+	}
+}
+
+u16 brcms_b_rate_shm_offset(struct brcms_hardware *wlc_hw, u8 rate)
+{
+	u16 table_ptr;
+	u8 phy_rate, index;
+
+	/* get the phy specific rate encoding for the PLCP SIGNAL field */
+	if (is_ofdm_rate(rate))
+		table_ptr = M_RT_DIRMAP_A;
+	else
+		table_ptr = M_RT_DIRMAP_B;
+
+	/* for a given rate, the LS-nibble of the PLCP SIGNAL field is
+	 * the index into the rate table.
+	 */
+	phy_rate = rate_info[rate] & BRCMS_RATE_MASK;
+	index = phy_rate & 0xf;
+
+	/* Find the SHM pointer to the rate table entry by looking in the
+	 * Direct-map Table
+	 */
+	return 2 * brcms_b_read_shm(wlc_hw, table_ptr + (index * 2));
+}
+
+/*
+ * bcmc_fid_generate:
+ * Generate frame ID for a BCMC packet.  The frag field is not used
+ * for MC frames so is used as part of the sequence number.
+ */
+static inline u16
+bcmc_fid_generate(struct brcms_c_info *wlc, struct brcms_bss_cfg *bsscfg,
+		  struct d11txh *txh)
+{
+	u16 frameid;
+
+	frameid = le16_to_cpu(txh->TxFrameID) & ~(TXFID_SEQ_MASK |
+						  TXFID_QUEUE_MASK);
+	frameid |=
+	    (((wlc->
+	       mc_fid_counter++) << TXFID_SEQ_SHIFT) & TXFID_SEQ_MASK) |
+	    TX_BCMC_FIFO;
+
+	return frameid;
+}
+
+static uint
+brcms_c_calc_ack_time(struct brcms_c_info *wlc, u32 rspec,
+		      u8 preamble_type)
+{
+	uint dur = 0;
+
+	/*
+	 * Spec 9.6: ack rate is the highest rate in BSSBasicRateSet that
+	 * is less than or equal to the rate of the immediately previous
+	 * frame in the FES
+	 */
+	rspec = brcms_basic_rate(wlc, rspec);
+	/* ACK frame len == 14 == 2(fc) + 2(dur) + 6(ra) + 4(fcs) */
+	dur =
+	    brcms_c_calc_frame_time(wlc, rspec, preamble_type,
+				(DOT11_ACK_LEN + FCS_LEN));
+	return dur;
+}
+
+static uint
+brcms_c_calc_cts_time(struct brcms_c_info *wlc, u32 rspec,
+		      u8 preamble_type)
+{
+	return brcms_c_calc_ack_time(wlc, rspec, preamble_type);
+}
+
+static uint
+brcms_c_calc_ba_time(struct brcms_c_info *wlc, u32 rspec,
+		     u8 preamble_type)
+{
+	/*
+	 * Spec 9.6: ack rate is the highest rate in BSSBasicRateSet that
+	 * is less than or equal to the rate of the immediately previous
+	 * frame in the FES
+	 */
+	rspec = brcms_basic_rate(wlc, rspec);
+	/* BA len == 32 == 16(ctl hdr) + 4(ba len) + 8(bitmap) + 4(fcs) */
+	return brcms_c_calc_frame_time(wlc, rspec, preamble_type,
+				   (DOT11_BA_LEN + DOT11_BA_BITMAP_LEN +
+				    FCS_LEN));
+}
+
+/* brcms_c_compute_frame_dur()
+ *
+ * Calculate the 802.11 MAC header DUR field for MPDU
+ * DUR for a single frame = 1 SIFS + 1 ACK
+ * DUR for a frame with following frags = 3 SIFS + 2 ACK + next frag time
+ *
+ * rate			MPDU rate in unit of 500kbps
+ * next_frag_len	next MPDU length in bytes
+ * preamble_type	use short/GF or long/MM PLCP header
+ */
+static u16
+brcms_c_compute_frame_dur(struct brcms_c_info *wlc, u32 rate,
+		      u8 preamble_type, uint next_frag_len)
+{
+	u16 dur, sifs;
+
+	sifs = get_sifs(wlc->band);
+
+	dur = sifs;
+	dur += (u16) brcms_c_calc_ack_time(wlc, rate, preamble_type);
+
+	if (next_frag_len) {
+		/* Double the current DUR to get 2 SIFS + 2 ACKs */
+		dur *= 2;
+		/* add another SIFS and the frag time */
+		dur += sifs;
+		dur +=
+		    (u16) brcms_c_calc_frame_time(wlc, rate, preamble_type,
+						 next_frag_len);
+	}
+	return dur;
+}
+
+/* The opposite of brcms_c_calc_frame_time */
+static uint
+brcms_c_calc_frame_len(struct brcms_c_info *wlc, u32 ratespec,
+		   u8 preamble_type, uint dur)
+{
+	uint nsyms, mac_len, Ndps, kNdps;
+	uint rate = rspec2rate(ratespec);
+
+	if (is_mcs_rate(ratespec)) {
+		uint mcs = ratespec & RSPEC_RATE_MASK;
+		int tot_streams = mcs_2_txstreams(mcs) + rspec_stc(ratespec);
+		dur -= PREN_PREAMBLE + (tot_streams * PREN_PREAMBLE_EXT);
+		/* payload calculation matches that of regular ofdm */
+		if (wlc->band->bandtype == BRCM_BAND_2G)
+			dur -= DOT11_OFDM_SIGNAL_EXTENSION;
+		/* kNdbps = kbps * 4 */
+		kNdps =	mcs_2_rate(mcs, rspec_is40mhz(ratespec),
+				   rspec_issgi(ratespec)) * 4;
+		nsyms = dur / APHY_SYMBOL_TIME;
+		mac_len =
+		    ((nsyms * kNdps) -
+		     ((APHY_SERVICE_NBITS + APHY_TAIL_NBITS) * 1000)) / 8000;
+	} else if (is_ofdm_rate(ratespec)) {
+		dur -= APHY_PREAMBLE_TIME;
+		dur -= APHY_SIGNAL_TIME;
+		/* Ndbps = Mbps * 4 = rate(500Kbps) * 2 */
+		Ndps = rate * 2;
+		nsyms = dur / APHY_SYMBOL_TIME;
+		mac_len =
+		    ((nsyms * Ndps) -
+		     (APHY_SERVICE_NBITS + APHY_TAIL_NBITS)) / 8;
+	} else {
+		if (preamble_type & BRCMS_SHORT_PREAMBLE)
+			dur -= BPHY_PLCP_SHORT_TIME;
+		else
+			dur -= BPHY_PLCP_TIME;
+		mac_len = dur * rate;
+		/* divide out factor of 2 in rate (1/2 mbps) */
+		mac_len = mac_len / 8 / 2;
+	}
+	return mac_len;
+}
+
+/*
+ * Return true if the specified rate is supported by the specified band.
+ * BRCM_BAND_AUTO indicates the current band.
+ */
+static bool brcms_c_valid_rate(struct brcms_c_info *wlc, u32 rspec, int band,
+		    bool verbose)
+{
+	struct brcms_c_rateset *hw_rateset;
+	uint i;
+
+	if ((band == BRCM_BAND_AUTO) || (band == wlc->band->bandtype))
+		hw_rateset = &wlc->band->hw_rateset;
+	else if (wlc->pub->_nbands > 1)
+		hw_rateset = &wlc->bandstate[OTHERBANDUNIT(wlc)]->hw_rateset;
+	else
+		/* other band specified and we are a single band device */
+		return false;
+
+	/* check if this is a mimo rate */
+	if (is_mcs_rate(rspec)) {
+		if ((rspec & RSPEC_RATE_MASK) >= MCS_TABLE_SIZE)
+			goto error;
+
+		return isset(hw_rateset->mcs, (rspec & RSPEC_RATE_MASK));
+	}
+
+	for (i = 0; i < hw_rateset->count; i++)
+		if (hw_rateset->rates[i] == rspec2rate(rspec))
+			return true;
+ error:
+	if (verbose)
+		brcms_err(wlc->hw->d11core, "wl%d: valid_rate: rate spec 0x%x "
+			  "not in hw_rateset\n", wlc->pub->unit, rspec);
+
+	return false;
+}
+
+static u32
+mac80211_wlc_set_nrate(struct brcms_c_info *wlc, struct brcms_band *cur_band,
+		       u32 int_val)
+{
+	struct bcma_device *core = wlc->hw->d11core;
+	u8 stf = (int_val & NRATE_STF_MASK) >> NRATE_STF_SHIFT;
+	u8 rate = int_val & NRATE_RATE_MASK;
+	u32 rspec;
+	bool ismcs = ((int_val & NRATE_MCS_INUSE) == NRATE_MCS_INUSE);
+	bool issgi = ((int_val & NRATE_SGI_MASK) >> NRATE_SGI_SHIFT);
+	bool override_mcs_only = ((int_val & NRATE_OVERRIDE_MCS_ONLY)
+				  == NRATE_OVERRIDE_MCS_ONLY);
+	int bcmerror = 0;
+
+	if (!ismcs)
+		return (u32) rate;
+
+	/* validate the combination of rate/mcs/stf is allowed */
+	if ((wlc->pub->_n_enab & SUPPORT_11N) && ismcs) {
+		/* mcs only allowed when nmode */
+		if (stf > PHY_TXC1_MODE_SDM) {
+			brcms_err(core, "wl%d: %s: Invalid stf\n",
+				  wlc->pub->unit, __func__);
+			bcmerror = -EINVAL;
+			goto done;
+		}
+
+		/* mcs 32 is a special case, DUP mode 40 only */
+		if (rate == 32) {
+			if (!CHSPEC_IS40(wlc->home_chanspec) ||
+			    ((stf != PHY_TXC1_MODE_SISO)
+			     && (stf != PHY_TXC1_MODE_CDD))) {
+				brcms_err(core, "wl%d: %s: Invalid mcs 32\n",
+					  wlc->pub->unit, __func__);
+				bcmerror = -EINVAL;
+				goto done;
+			}
+			/* mcs > 7 must use stf SDM */
+		} else if (rate > HIGHEST_SINGLE_STREAM_MCS) {
+			/* mcs > 7 must use stf SDM */
+			if (stf != PHY_TXC1_MODE_SDM) {
+				brcms_dbg_mac80211(core, "wl%d: enabling "
+						   "SDM mode for mcs %d\n",
+						   wlc->pub->unit, rate);
+				stf = PHY_TXC1_MODE_SDM;
+			}
+		} else {
+			/*
+			 * MCS 0-7 may use SISO, CDD, and for
+			 * phy_rev >= 3 STBC
+			 */
+			if ((stf > PHY_TXC1_MODE_STBC) ||
+			    (!BRCMS_STBC_CAP_PHY(wlc)
+			     && (stf == PHY_TXC1_MODE_STBC))) {
+				brcms_err(core, "wl%d: %s: Invalid STBC\n",
+					  wlc->pub->unit, __func__);
+				bcmerror = -EINVAL;
+				goto done;
+			}
+		}
+	} else if (is_ofdm_rate(rate)) {
+		if ((stf != PHY_TXC1_MODE_CDD) && (stf != PHY_TXC1_MODE_SISO)) {
+			brcms_err(core, "wl%d: %s: Invalid OFDM\n",
+				  wlc->pub->unit, __func__);
+			bcmerror = -EINVAL;
+			goto done;
+		}
+	} else if (is_cck_rate(rate)) {
+		if ((cur_band->bandtype != BRCM_BAND_2G)
+		    || (stf != PHY_TXC1_MODE_SISO)) {
+			brcms_err(core, "wl%d: %s: Invalid CCK\n",
+				  wlc->pub->unit, __func__);
+			bcmerror = -EINVAL;
+			goto done;
+		}
+	} else {
+		brcms_err(core, "wl%d: %s: Unknown rate type\n",
+			  wlc->pub->unit, __func__);
+		bcmerror = -EINVAL;
+		goto done;
+	}
+	/* make sure multiple antennae are available for non-siso rates */
+	if ((stf != PHY_TXC1_MODE_SISO) && (wlc->stf->txstreams == 1)) {
+		brcms_err(core, "wl%d: %s: SISO antenna but !SISO "
+			  "request\n", wlc->pub->unit, __func__);
+		bcmerror = -EINVAL;
+		goto done;
+	}
+
+	rspec = rate;
+	if (ismcs) {
+		rspec |= RSPEC_MIMORATE;
+		/* For STBC populate the STC field of the ratespec */
+		if (stf == PHY_TXC1_MODE_STBC) {
+			u8 stc;
+			stc = 1;	/* Nss for single stream is always 1 */
+			rspec |= (stc << RSPEC_STC_SHIFT);
+		}
+	}
+
+	rspec |= (stf << RSPEC_STF_SHIFT);
+
+	if (override_mcs_only)
+		rspec |= RSPEC_OVERRIDE_MCS_ONLY;
+
+	if (issgi)
+		rspec |= RSPEC_SHORT_GI;
+
+	if ((rate != 0)
+	    && !brcms_c_valid_rate(wlc, rspec, cur_band->bandtype, true))
+		return rate;
+
+	return rspec;
+done:
+	return rate;
+}
+
+/*
+ * Compute PLCP, but only requires actual rate and length of pkt.
+ * Rate is given in the driver standard multiple of 500 kbps.
+ * le is set for 11 Mbps rate if necessary.
+ * Broken out for PRQ.
+ */
+
+static void brcms_c_cck_plcp_set(struct brcms_c_info *wlc, int rate_500,
+			     uint length, u8 *plcp)
+{
+	u16 usec = 0;
+	u8 le = 0;
+
+	switch (rate_500) {
+	case BRCM_RATE_1M:
+		usec = length << 3;
+		break;
+	case BRCM_RATE_2M:
+		usec = length << 2;
+		break;
+	case BRCM_RATE_5M5:
+		usec = (length << 4) / 11;
+		if ((length << 4) - (usec * 11) > 0)
+			usec++;
+		break;
+	case BRCM_RATE_11M:
+		usec = (length << 3) / 11;
+		if ((length << 3) - (usec * 11) > 0) {
+			usec++;
+			if ((usec * 11) - (length << 3) >= 8)
+				le = D11B_PLCP_SIGNAL_LE;
+		}
+		break;
+
+	default:
+		brcms_err(wlc->hw->d11core,
+			  "brcms_c_cck_plcp_set: unsupported rate %d\n",
+			  rate_500);
+		rate_500 = BRCM_RATE_1M;
+		usec = length << 3;
+		break;
+	}
+	/* PLCP signal byte */
+	plcp[0] = rate_500 * 5;	/* r (500kbps) * 5 == r (100kbps) */
+	/* PLCP service byte */
+	plcp[1] = (u8) (le | D11B_PLCP_SIGNAL_LOCKED);
+	/* PLCP length u16, little endian */
+	plcp[2] = usec & 0xff;
+	plcp[3] = (usec >> 8) & 0xff;
+	/* PLCP CRC16 */
+	plcp[4] = 0;
+	plcp[5] = 0;
+}
+
+/* Rate: 802.11 rate code, length: PSDU length in octets */
+static void brcms_c_compute_mimo_plcp(u32 rspec, uint length, u8 *plcp)
+{
+	u8 mcs = (u8) (rspec & RSPEC_RATE_MASK);
+	plcp[0] = mcs;
+	if (rspec_is40mhz(rspec) || (mcs == 32))
+		plcp[0] |= MIMO_PLCP_40MHZ;
+	BRCMS_SET_MIMO_PLCP_LEN(plcp, length);
+	plcp[3] = rspec_mimoplcp3(rspec); /* rspec already holds this byte */
+	plcp[3] |= 0x7; /* set smoothing, not sounding ppdu & reserved */
+	plcp[4] = 0; /* number of extension spatial streams bit 0 & 1 */
+	plcp[5] = 0;
+}
+
+/* Rate: 802.11 rate code, length: PSDU length in octets */
+static void
+brcms_c_compute_ofdm_plcp(u32 rspec, u32 length, u8 *plcp)
+{
+	u8 rate_signal;
+	u32 tmp = 0;
+	int rate = rspec2rate(rspec);
+
+	/*
+	 * encode rate per 802.11a-1999 sec 17.3.4.1, with lsb
+	 * transmitted first
+	 */
+	rate_signal = rate_info[rate] & BRCMS_RATE_MASK;
+	memset(plcp, 0, D11_PHY_HDR_LEN);
+	D11A_PHY_HDR_SRATE((struct ofdm_phy_hdr *) plcp, rate_signal);
+
+	tmp = (length & 0xfff) << 5;
+	plcp[2] |= (tmp >> 16) & 0xff;
+	plcp[1] |= (tmp >> 8) & 0xff;
+	plcp[0] |= tmp & 0xff;
+}
+
+/* Rate: 802.11 rate code, length: PSDU length in octets */
+static void brcms_c_compute_cck_plcp(struct brcms_c_info *wlc, u32 rspec,
+				 uint length, u8 *plcp)
+{
+	int rate = rspec2rate(rspec);
+
+	brcms_c_cck_plcp_set(wlc, rate, length, plcp);
+}
+
+static void
+brcms_c_compute_plcp(struct brcms_c_info *wlc, u32 rspec,
+		     uint length, u8 *plcp)
+{
+	if (is_mcs_rate(rspec))
+		brcms_c_compute_mimo_plcp(rspec, length, plcp);
+	else if (is_ofdm_rate(rspec))
+		brcms_c_compute_ofdm_plcp(rspec, length, plcp);
+	else
+		brcms_c_compute_cck_plcp(wlc, rspec, length, plcp);
+}
+
+/* brcms_c_compute_rtscts_dur()
+ *
+ * Calculate the 802.11 MAC header DUR field for an RTS or CTS frame
+ * DUR for normal RTS/CTS w/ frame = 3 SIFS + 1 CTS + next frame time + 1 ACK
+ * DUR for CTS-TO-SELF w/ frame    = 2 SIFS         + next frame time + 1 ACK
+ *
+ * cts			cts-to-self or rts/cts
+ * rts_rate		rts or cts rate in unit of 500kbps
+ * rate			next MPDU rate in unit of 500kbps
+ * frame_len		next MPDU frame length in bytes
+ */
+u16
+brcms_c_compute_rtscts_dur(struct brcms_c_info *wlc, bool cts_only,
+			   u32 rts_rate,
+			   u32 frame_rate, u8 rts_preamble_type,
+			   u8 frame_preamble_type, uint frame_len, bool ba)
+{
+	u16 dur, sifs;
+
+	sifs = get_sifs(wlc->band);
+
+	if (!cts_only) {
+		/* RTS/CTS */
+		dur = 3 * sifs;
+		dur +=
+		    (u16) brcms_c_calc_cts_time(wlc, rts_rate,
+					       rts_preamble_type);
+	} else {
+		/* CTS-TO-SELF */
+		dur = 2 * sifs;
+	}
+
+	dur +=
+	    (u16) brcms_c_calc_frame_time(wlc, frame_rate, frame_preamble_type,
+					 frame_len);
+	if (ba)
+		dur +=
+		    (u16) brcms_c_calc_ba_time(wlc, frame_rate,
+					      BRCMS_SHORT_PREAMBLE);
+	else
+		dur +=
+		    (u16) brcms_c_calc_ack_time(wlc, frame_rate,
+					       frame_preamble_type);
+	return dur;
+}
+
+static u16 brcms_c_phytxctl1_calc(struct brcms_c_info *wlc, u32 rspec)
+{
+	u16 phyctl1 = 0;
+	u16 bw;
+
+	if (BRCMS_ISLCNPHY(wlc->band)) {
+		bw = PHY_TXC1_BW_20MHZ;
+	} else {
+		bw = rspec_get_bw(rspec);
+		/* 10Mhz is not supported yet */
+		if (bw < PHY_TXC1_BW_20MHZ) {
+			brcms_err(wlc->hw->d11core, "phytxctl1_calc: bw %d is "
+				  "not supported yet, set to 20L\n", bw);
+			bw = PHY_TXC1_BW_20MHZ;
+		}
+	}
+
+	if (is_mcs_rate(rspec)) {
+		uint mcs = rspec & RSPEC_RATE_MASK;
+
+		/* bw, stf, coding-type is part of rspec_phytxbyte2 returns */
+		phyctl1 = rspec_phytxbyte2(rspec);
+		/* set the upper byte of phyctl1 */
+		phyctl1 |= (mcs_table[mcs].tx_phy_ctl3 << 8);
+	} else if (is_cck_rate(rspec) && !BRCMS_ISLCNPHY(wlc->band)
+		   && !BRCMS_ISSSLPNPHY(wlc->band)) {
+		/*
+		 * In CCK mode LPPHY overloads OFDM Modulation bits with CCK
+		 * Data Rate. Eventually MIMOPHY would also be converted to
+		 * this format
+		 */
+		/* 0 = 1Mbps; 1 = 2Mbps; 2 = 5.5Mbps; 3 = 11Mbps */
+		phyctl1 = (bw | (rspec_stf(rspec) << PHY_TXC1_MODE_SHIFT));
+	} else {		/* legacy OFDM/CCK */
+		s16 phycfg;
+		/* get the phyctl byte from rate phycfg table */
+		phycfg = brcms_c_rate_legacy_phyctl(rspec2rate(rspec));
+		if (phycfg == -1) {
+			brcms_err(wlc->hw->d11core, "phytxctl1_calc: wrong "
+				  "legacy OFDM/CCK rate\n");
+			phycfg = 0;
+		}
+		/* set the upper byte of phyctl1 */
+		phyctl1 =
+		    (bw | (phycfg << 8) |
+		     (rspec_stf(rspec) << PHY_TXC1_MODE_SHIFT));
+	}
+	return phyctl1;
+}
+
+/*
+ * Add struct d11txh, struct cck_phy_hdr.
+ *
+ * 'p' data must start with 802.11 MAC header
+ * 'p' must allow enough bytes of local headers to be "pushed" onto the packet
+ *
+ * headroom == D11_PHY_HDR_LEN + D11_TXH_LEN (D11_TXH_LEN is now 104 bytes)
+ *
+ */
+static u16
+brcms_c_d11hdrs_mac80211(struct brcms_c_info *wlc, struct ieee80211_hw *hw,
+		     struct sk_buff *p, struct scb *scb, uint frag,
+		     uint nfrags, uint queue, uint next_frag_len)
+{
+	struct ieee80211_hdr *h;
+	struct d11txh *txh;
+	u8 *plcp, plcp_fallback[D11_PHY_HDR_LEN];
+	int len, phylen, rts_phylen;
+	u16 mch, phyctl, xfts, mainrates;
+	u16 seq = 0, mcl = 0, status = 0, frameid = 0;
+	u32 rspec[2] = { BRCM_RATE_1M, BRCM_RATE_1M };
+	u32 rts_rspec[2] = { BRCM_RATE_1M, BRCM_RATE_1M };
+	bool use_rts = false;
+	bool use_cts = false;
+	bool use_rifs = false;
+	bool short_preamble[2] = { false, false };
+	u8 preamble_type[2] = { BRCMS_LONG_PREAMBLE, BRCMS_LONG_PREAMBLE };
+	u8 rts_preamble_type[2] = { BRCMS_LONG_PREAMBLE, BRCMS_LONG_PREAMBLE };
+	u8 *rts_plcp, rts_plcp_fallback[D11_PHY_HDR_LEN];
+	struct ieee80211_rts *rts = NULL;
+	bool qos;
+	uint ac;
+	bool hwtkmic = false;
+	u16 mimo_ctlchbw = PHY_TXC1_BW_20MHZ;
+#define ANTCFG_NONE 0xFF
+	u8 antcfg = ANTCFG_NONE;
+	u8 fbantcfg = ANTCFG_NONE;
+	uint phyctl1_stf = 0;
+	u16 durid = 0;
+	struct ieee80211_tx_rate *txrate[2];
+	int k;
+	struct ieee80211_tx_info *tx_info;
+	bool is_mcs;
+	u16 mimo_txbw;
+	u8 mimo_preamble_type;
+
+	/* locate 802.11 MAC header */
+	h = (struct ieee80211_hdr *)(p->data);
+	qos = ieee80211_is_data_qos(h->frame_control);
+
+	/* compute length of frame in bytes for use in PLCP computations */
+	len = p->len;
+	phylen = len + FCS_LEN;
+
+	/* Get tx_info */
+	tx_info = IEEE80211_SKB_CB(p);
+
+	/* add PLCP */
+	plcp = skb_push(p, D11_PHY_HDR_LEN);
+
+	/* add Broadcom tx descriptor header */
+	txh = (struct d11txh *) skb_push(p, D11_TXH_LEN);
+	memset(txh, 0, D11_TXH_LEN);
+
+	/* setup frameid */
+	if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
+		/* non-AP STA should never use BCMC queue */
+		if (queue == TX_BCMC_FIFO) {
+			brcms_err(wlc->hw->d11core,
+				  "wl%d: %s: ASSERT queue == TX_BCMC!\n",
+				  wlc->pub->unit, __func__);
+			frameid = bcmc_fid_generate(wlc, NULL, txh);
+		} else {
+			/* Increment the counter for first fragment */
+			if (tx_info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
+				scb->seqnum[p->priority]++;
+
+			/* extract fragment number from frame first */
+			seq = le16_to_cpu(h->seq_ctrl) & FRAGNUM_MASK;
+			seq |= (scb->seqnum[p->priority] << SEQNUM_SHIFT);
+			h->seq_ctrl = cpu_to_le16(seq);
+
+			frameid = ((seq << TXFID_SEQ_SHIFT) & TXFID_SEQ_MASK) |
+			    (queue & TXFID_QUEUE_MASK);
+		}
+	}
+	frameid |= queue & TXFID_QUEUE_MASK;
+
+	/* set the ignpmq bit for all pkts tx'd in PS mode and for beacons */
+	if (ieee80211_is_beacon(h->frame_control))
+		mcl |= TXC_IGNOREPMQ;
+
+	txrate[0] = tx_info->control.rates;
+	txrate[1] = txrate[0] + 1;
+
+	/*
+	 * if rate control algorithm didn't give us a fallback
+	 * rate, use the primary rate
+	 */
+	if (txrate[1]->idx < 0)
+		txrate[1] = txrate[0];
+
+	for (k = 0; k < hw->max_rates; k++) {
+		is_mcs = txrate[k]->flags & IEEE80211_TX_RC_MCS ? true : false;
+		if (!is_mcs) {
+			if ((txrate[k]->idx >= 0)
+			    && (txrate[k]->idx <
+				hw->wiphy->bands[tx_info->band]->n_bitrates)) {
+				rspec[k] =
+				    hw->wiphy->bands[tx_info->band]->
+				    bitrates[txrate[k]->idx].hw_value;
+				short_preamble[k] =
+				    txrate[k]->
+				    flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE ?
+				    true : false;
+			} else {
+				rspec[k] = BRCM_RATE_1M;
+			}
+		} else {
+			rspec[k] = mac80211_wlc_set_nrate(wlc, wlc->band,
+					NRATE_MCS_INUSE | txrate[k]->idx);
+		}
+
+		/*
+		 * Currently only support same setting for primay and
+		 * fallback rates. Unify flags for each rate into a
+		 * single value for the frame
+		 */
+		use_rts |=
+		    txrate[k]->
+		    flags & IEEE80211_TX_RC_USE_RTS_CTS ? true : false;
+		use_cts |=
+		    txrate[k]->
+		    flags & IEEE80211_TX_RC_USE_CTS_PROTECT ? true : false;
+
+
+		/*
+		 * (1) RATE:
+		 *   determine and validate primary rate
+		 *   and fallback rates
+		 */
+		if (!rspec_active(rspec[k])) {
+			rspec[k] = BRCM_RATE_1M;
+		} else {
+			if (!is_multicast_ether_addr(h->addr1)) {
+				/* set tx antenna config */
+				brcms_c_antsel_antcfg_get(wlc->asi, false,
+					false, 0, 0, &antcfg, &fbantcfg);
+			}
+		}
+	}
+
+	phyctl1_stf = wlc->stf->ss_opmode;
+
+	if (wlc->pub->_n_enab & SUPPORT_11N) {
+		for (k = 0; k < hw->max_rates; k++) {
+			/*
+			 * apply siso/cdd to single stream mcs's or ofdm
+			 * if rspec is auto selected
+			 */
+			if (((is_mcs_rate(rspec[k]) &&
+			      is_single_stream(rspec[k] & RSPEC_RATE_MASK)) ||
+			     is_ofdm_rate(rspec[k]))
+			    && ((rspec[k] & RSPEC_OVERRIDE_MCS_ONLY)
+				|| !(rspec[k] & RSPEC_OVERRIDE))) {
+				rspec[k] &= ~(RSPEC_STF_MASK | RSPEC_STC_MASK);
+
+				/* For SISO MCS use STBC if possible */
+				if (is_mcs_rate(rspec[k])
+				    && BRCMS_STF_SS_STBC_TX(wlc, scb)) {
+					u8 stc;
+
+					/* Nss for single stream is always 1 */
+					stc = 1;
+					rspec[k] |= (PHY_TXC1_MODE_STBC <<
+							RSPEC_STF_SHIFT) |
+						    (stc << RSPEC_STC_SHIFT);
+				} else
+					rspec[k] |=
+					    (phyctl1_stf << RSPEC_STF_SHIFT);
+			}
+
+			/*
+			 * Is the phy configured to use 40MHZ frames? If
+			 * so then pick the desired txbw
+			 */
+			if (brcms_chspec_bw(wlc->chanspec) == BRCMS_40_MHZ) {
+				/* default txbw is 20in40 SB */
+				mimo_ctlchbw = mimo_txbw =
+				   CHSPEC_SB_UPPER(wlc_phy_chanspec_get(
+								 wlc->band->pi))
+				   ? PHY_TXC1_BW_20MHZ_UP : PHY_TXC1_BW_20MHZ;
+
+				if (is_mcs_rate(rspec[k])) {
+					/* mcs 32 must be 40b/w DUP */
+					if ((rspec[k] & RSPEC_RATE_MASK)
+					    == 32) {
+						mimo_txbw =
+						    PHY_TXC1_BW_40MHZ_DUP;
+						/* use override */
+					} else if (wlc->mimo_40txbw != AUTO)
+						mimo_txbw = wlc->mimo_40txbw;
+					/* else check if dst is using 40 Mhz */
+					else if (scb->flags & SCB_IS40)
+						mimo_txbw = PHY_TXC1_BW_40MHZ;
+				} else if (is_ofdm_rate(rspec[k])) {
+					if (wlc->ofdm_40txbw != AUTO)
+						mimo_txbw = wlc->ofdm_40txbw;
+				} else if (wlc->cck_40txbw != AUTO) {
+					mimo_txbw = wlc->cck_40txbw;
+				}
+			} else {
+				/*
+				 * mcs32 is 40 b/w only.
+				 * This is possible for probe packets on
+				 * a STA during SCAN
+				 */
+				if ((rspec[k] & RSPEC_RATE_MASK) == 32)
+					/* mcs 0 */
+					rspec[k] = RSPEC_MIMORATE;
+
+				mimo_txbw = PHY_TXC1_BW_20MHZ;
+			}
+
+			/* Set channel width */
+			rspec[k] &= ~RSPEC_BW_MASK;
+			if ((k == 0) || ((k > 0) && is_mcs_rate(rspec[k])))
+				rspec[k] |= (mimo_txbw << RSPEC_BW_SHIFT);
+			else
+				rspec[k] |= (mimo_ctlchbw << RSPEC_BW_SHIFT);
+
+			/* Disable short GI, not supported yet */
+			rspec[k] &= ~RSPEC_SHORT_GI;
+
+			mimo_preamble_type = BRCMS_MM_PREAMBLE;
+			if (txrate[k]->flags & IEEE80211_TX_RC_GREEN_FIELD)
+				mimo_preamble_type = BRCMS_GF_PREAMBLE;
+
+			if ((txrate[k]->flags & IEEE80211_TX_RC_MCS)
+			    && (!is_mcs_rate(rspec[k]))) {
+				brcms_warn(wlc->hw->d11core,
+					   "wl%d: %s: IEEE80211_TX_RC_MCS != is_mcs_rate(rspec)\n",
+					   wlc->pub->unit, __func__);
+			}
+
+			if (is_mcs_rate(rspec[k])) {
+				preamble_type[k] = mimo_preamble_type;
+
+				/*
+				 * if SGI is selected, then forced mm
+				 * for single stream
+				 */
+				if ((rspec[k] & RSPEC_SHORT_GI)
+				    && is_single_stream(rspec[k] &
+							RSPEC_RATE_MASK))
+					preamble_type[k] = BRCMS_MM_PREAMBLE;
+			}
+
+			/* should be better conditionalized */
+			if (!is_mcs_rate(rspec[0])
+			    && (tx_info->control.rates[0].
+				flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE))
+				preamble_type[k] = BRCMS_SHORT_PREAMBLE;
+		}
+	} else {
+		for (k = 0; k < hw->max_rates; k++) {
+			/* Set ctrlchbw as 20Mhz */
+			rspec[k] &= ~RSPEC_BW_MASK;
+			rspec[k] |= (PHY_TXC1_BW_20MHZ << RSPEC_BW_SHIFT);
+
+			/* for nphy, stf of ofdm frames must follow policies */
+			if (BRCMS_ISNPHY(wlc->band) && is_ofdm_rate(rspec[k])) {
+				rspec[k] &= ~RSPEC_STF_MASK;
+				rspec[k] |= phyctl1_stf << RSPEC_STF_SHIFT;
+			}
+		}
+	}
+
+	/* Reset these for use with AMPDU's */
+	txrate[0]->count = 0;
+	txrate[1]->count = 0;
+
+	/* (2) PROTECTION, may change rspec */
+	if ((ieee80211_is_data(h->frame_control) ||
+	    ieee80211_is_mgmt(h->frame_control)) &&
+	    (phylen > wlc->RTSThresh) && !is_multicast_ether_addr(h->addr1))
+		use_rts = true;
+
+	/* (3) PLCP: determine PLCP header and MAC duration,
+	 * fill struct d11txh */
+	brcms_c_compute_plcp(wlc, rspec[0], phylen, plcp);
+	brcms_c_compute_plcp(wlc, rspec[1], phylen, plcp_fallback);
+	memcpy(&txh->FragPLCPFallback,
+	       plcp_fallback, sizeof(txh->FragPLCPFallback));
+
+	/* Length field now put in CCK FBR CRC field */
+	if (is_cck_rate(rspec[1])) {
+		txh->FragPLCPFallback[4] = phylen & 0xff;
+		txh->FragPLCPFallback[5] = (phylen & 0xff00) >> 8;
+	}
+
+	/* MIMO-RATE: need validation ?? */
+	mainrates = is_ofdm_rate(rspec[0]) ?
+			D11A_PHY_HDR_GRATE((struct ofdm_phy_hdr *) plcp) :
+			plcp[0];
+
+	/* DUR field for main rate */
+	if (!ieee80211_is_pspoll(h->frame_control) &&
+	    !is_multicast_ether_addr(h->addr1) && !use_rifs) {
+		durid =
+		    brcms_c_compute_frame_dur(wlc, rspec[0], preamble_type[0],
+					  next_frag_len);
+		h->duration_id = cpu_to_le16(durid);
+	} else if (use_rifs) {
+		/* NAV protect to end of next max packet size */
+		durid =
+		    (u16) brcms_c_calc_frame_time(wlc, rspec[0],
+						 preamble_type[0],
+						 DOT11_MAX_FRAG_LEN);
+		durid += RIFS_11N_TIME;
+		h->duration_id = cpu_to_le16(durid);
+	}
+
+	/* DUR field for fallback rate */
+	if (ieee80211_is_pspoll(h->frame_control))
+		txh->FragDurFallback = h->duration_id;
+	else if (is_multicast_ether_addr(h->addr1) || use_rifs)
+		txh->FragDurFallback = 0;
+	else {
+		durid = brcms_c_compute_frame_dur(wlc, rspec[1],
+					      preamble_type[1], next_frag_len);
+		txh->FragDurFallback = cpu_to_le16(durid);
+	}
+
+	/* (4) MAC-HDR: MacTxControlLow */
+	if (frag == 0)
+		mcl |= TXC_STARTMSDU;
+
+	if (!is_multicast_ether_addr(h->addr1))
+		mcl |= TXC_IMMEDACK;
+
+	if (wlc->band->bandtype == BRCM_BAND_5G)
+		mcl |= TXC_FREQBAND_5G;
+
+	if (CHSPEC_IS40(wlc_phy_chanspec_get(wlc->band->pi)))
+		mcl |= TXC_BW_40;
+
+	/* set AMIC bit if using hardware TKIP MIC */
+	if (hwtkmic)
+		mcl |= TXC_AMIC;
+
+	txh->MacTxControlLow = cpu_to_le16(mcl);
+
+	/* MacTxControlHigh */
+	mch = 0;
+
+	/* Set fallback rate preamble type */
+	if ((preamble_type[1] == BRCMS_SHORT_PREAMBLE) ||
+	    (preamble_type[1] == BRCMS_GF_PREAMBLE)) {
+		if (rspec2rate(rspec[1]) != BRCM_RATE_1M)
+			mch |= TXC_PREAMBLE_DATA_FB_SHORT;
+	}
+
+	/* MacFrameControl */
+	memcpy(&txh->MacFrameControl, &h->frame_control, sizeof(u16));
+	txh->TxFesTimeNormal = cpu_to_le16(0);
+
+	txh->TxFesTimeFallback = cpu_to_le16(0);
+
+	/* TxFrameRA */
+	memcpy(&txh->TxFrameRA, &h->addr1, ETH_ALEN);
+
+	/* TxFrameID */
+	txh->TxFrameID = cpu_to_le16(frameid);
+
+	/*
+	 * TxStatus, Note the case of recreating the first frag of a suppressed
+	 * frame then we may need to reset the retry cnt's via the status reg
+	 */
+	txh->TxStatus = cpu_to_le16(status);
+
+	/*
+	 * extra fields for ucode AMPDU aggregation, the new fields are added to
+	 * the END of previous structure so that it's compatible in driver.
+	 */
+	txh->MaxNMpdus = cpu_to_le16(0);
+	txh->MaxABytes_MRT = cpu_to_le16(0);
+	txh->MaxABytes_FBR = cpu_to_le16(0);
+	txh->MinMBytes = cpu_to_le16(0);
+
+	/* (5) RTS/CTS: determine RTS/CTS PLCP header and MAC duration,
+	 * furnish struct d11txh */
+	/* RTS PLCP header and RTS frame */
+	if (use_rts || use_cts) {
+		if (use_rts && use_cts)
+			use_cts = false;
+
+		for (k = 0; k < 2; k++) {
+			rts_rspec[k] = brcms_c_rspec_to_rts_rspec(wlc, rspec[k],
+							      false,
+							      mimo_ctlchbw);
+		}
+
+		if (!is_ofdm_rate(rts_rspec[0]) &&
+		    !((rspec2rate(rts_rspec[0]) == BRCM_RATE_1M) ||
+		      (wlc->PLCPHdr_override == BRCMS_PLCP_LONG))) {
+			rts_preamble_type[0] = BRCMS_SHORT_PREAMBLE;
+			mch |= TXC_PREAMBLE_RTS_MAIN_SHORT;
+		}
+
+		if (!is_ofdm_rate(rts_rspec[1]) &&
+		    !((rspec2rate(rts_rspec[1]) == BRCM_RATE_1M) ||
+		      (wlc->PLCPHdr_override == BRCMS_PLCP_LONG))) {
+			rts_preamble_type[1] = BRCMS_SHORT_PREAMBLE;
+			mch |= TXC_PREAMBLE_RTS_FB_SHORT;
+		}
+
+		/* RTS/CTS additions to MacTxControlLow */
+		if (use_cts) {
+			txh->MacTxControlLow |= cpu_to_le16(TXC_SENDCTS);
+		} else {
+			txh->MacTxControlLow |= cpu_to_le16(TXC_SENDRTS);
+			txh->MacTxControlLow |= cpu_to_le16(TXC_LONGFRAME);
+		}
+
+		/* RTS PLCP header */
+		rts_plcp = txh->RTSPhyHeader;
+		if (use_cts)
+			rts_phylen = DOT11_CTS_LEN + FCS_LEN;
+		else
+			rts_phylen = DOT11_RTS_LEN + FCS_LEN;
+
+		brcms_c_compute_plcp(wlc, rts_rspec[0], rts_phylen, rts_plcp);
+
+		/* fallback rate version of RTS PLCP header */
+		brcms_c_compute_plcp(wlc, rts_rspec[1], rts_phylen,
+				 rts_plcp_fallback);
+		memcpy(&txh->RTSPLCPFallback, rts_plcp_fallback,
+		       sizeof(txh->RTSPLCPFallback));
+
+		/* RTS frame fields... */
+		rts = (struct ieee80211_rts *)&txh->rts_frame;
+
+		durid = brcms_c_compute_rtscts_dur(wlc, use_cts, rts_rspec[0],
+					       rspec[0], rts_preamble_type[0],
+					       preamble_type[0], phylen, false);
+		rts->duration = cpu_to_le16(durid);
+		/* fallback rate version of RTS DUR field */
+		durid = brcms_c_compute_rtscts_dur(wlc, use_cts,
+					       rts_rspec[1], rspec[1],
+					       rts_preamble_type[1],
+					       preamble_type[1], phylen, false);
+		txh->RTSDurFallback = cpu_to_le16(durid);
+
+		if (use_cts) {
+			rts->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
+							 IEEE80211_STYPE_CTS);
+
+			memcpy(&rts->ra, &h->addr2, ETH_ALEN);
+		} else {
+			rts->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
+							 IEEE80211_STYPE_RTS);
+
+			memcpy(&rts->ra, &h->addr1, 2 * ETH_ALEN);
+		}
+
+		/* mainrate
+		 *    low 8 bits: main frag rate/mcs,
+		 *    high 8 bits: rts/cts rate/mcs
+		 */
+		mainrates |= (is_ofdm_rate(rts_rspec[0]) ?
+				D11A_PHY_HDR_GRATE(
+					(struct ofdm_phy_hdr *) rts_plcp) :
+				rts_plcp[0]) << 8;
+	} else {
+		memset(txh->RTSPhyHeader, 0, D11_PHY_HDR_LEN);
+		memset(&txh->rts_frame, 0, sizeof(struct ieee80211_rts));
+		memset(txh->RTSPLCPFallback, 0, sizeof(txh->RTSPLCPFallback));
+		txh->RTSDurFallback = 0;
+	}
+
+#ifdef SUPPORT_40MHZ
+	/* add null delimiter count */
+	if ((tx_info->flags & IEEE80211_TX_CTL_AMPDU) && is_mcs_rate(rspec))
+		txh->RTSPLCPFallback[AMPDU_FBR_NULL_DELIM] =
+		   brcm_c_ampdu_null_delim_cnt(wlc->ampdu, scb, rspec, phylen);
+
+#endif
+
+	/*
+	 * Now that RTS/RTS FB preamble types are updated, write
+	 * the final value
+	 */
+	txh->MacTxControlHigh = cpu_to_le16(mch);
+
+	/*
+	 * MainRates (both the rts and frag plcp rates have
+	 * been calculated now)
+	 */
+	txh->MainRates = cpu_to_le16(mainrates);
+
+	/* XtraFrameTypes */
+	xfts = frametype(rspec[1], wlc->mimoft);
+	xfts |= (frametype(rts_rspec[0], wlc->mimoft) << XFTS_RTS_FT_SHIFT);
+	xfts |= (frametype(rts_rspec[1], wlc->mimoft) << XFTS_FBRRTS_FT_SHIFT);
+	xfts |= CHSPEC_CHANNEL(wlc_phy_chanspec_get(wlc->band->pi)) <<
+							     XFTS_CHANNEL_SHIFT;
+	txh->XtraFrameTypes = cpu_to_le16(xfts);
+
+	/* PhyTxControlWord */
+	phyctl = frametype(rspec[0], wlc->mimoft);
+	if ((preamble_type[0] == BRCMS_SHORT_PREAMBLE) ||
+	    (preamble_type[0] == BRCMS_GF_PREAMBLE)) {
+		if (rspec2rate(rspec[0]) != BRCM_RATE_1M)
+			phyctl |= PHY_TXC_SHORT_HDR;
+	}
+
+	/* phytxant is properly bit shifted */
+	phyctl |= brcms_c_stf_d11hdrs_phyctl_txant(wlc, rspec[0]);
+	txh->PhyTxControlWord = cpu_to_le16(phyctl);
+
+	/* PhyTxControlWord_1 */
+	if (BRCMS_PHY_11N_CAP(wlc->band)) {
+		u16 phyctl1 = 0;
+
+		phyctl1 = brcms_c_phytxctl1_calc(wlc, rspec[0]);
+		txh->PhyTxControlWord_1 = cpu_to_le16(phyctl1);
+		phyctl1 = brcms_c_phytxctl1_calc(wlc, rspec[1]);
+		txh->PhyTxControlWord_1_Fbr = cpu_to_le16(phyctl1);
+
+		if (use_rts || use_cts) {
+			phyctl1 = brcms_c_phytxctl1_calc(wlc, rts_rspec[0]);
+			txh->PhyTxControlWord_1_Rts = cpu_to_le16(phyctl1);
+			phyctl1 = brcms_c_phytxctl1_calc(wlc, rts_rspec[1]);
+			txh->PhyTxControlWord_1_FbrRts = cpu_to_le16(phyctl1);
+		}
+
+		/*
+		 * For mcs frames, if mixedmode(overloaded with long preamble)
+		 * is going to be set, fill in non-zero MModeLen and/or
+		 * MModeFbrLen it will be unnecessary if they are separated
+		 */
+		if (is_mcs_rate(rspec[0]) &&
+		    (preamble_type[0] == BRCMS_MM_PREAMBLE)) {
+			u16 mmodelen =
+			    brcms_c_calc_lsig_len(wlc, rspec[0], phylen);
+			txh->MModeLen = cpu_to_le16(mmodelen);
+		}
+
+		if (is_mcs_rate(rspec[1]) &&
+		    (preamble_type[1] == BRCMS_MM_PREAMBLE)) {
+			u16 mmodefbrlen =
+			    brcms_c_calc_lsig_len(wlc, rspec[1], phylen);
+			txh->MModeFbrLen = cpu_to_le16(mmodefbrlen);
+		}
+	}
+
+	ac = skb_get_queue_mapping(p);
+	if ((scb->flags & SCB_WMECAP) && qos && wlc->edcf_txop[ac]) {
+		uint frag_dur, dur, dur_fallback;
+
+		/* WME: Update TXOP threshold */
+		if (!(tx_info->flags & IEEE80211_TX_CTL_AMPDU) && frag == 0) {
+			frag_dur =
+			    brcms_c_calc_frame_time(wlc, rspec[0],
+					preamble_type[0], phylen);
+
+			if (rts) {
+				/* 1 RTS or CTS-to-self frame */
+				dur =
+				    brcms_c_calc_cts_time(wlc, rts_rspec[0],
+						      rts_preamble_type[0]);
+				dur_fallback =
+				    brcms_c_calc_cts_time(wlc, rts_rspec[1],
+						      rts_preamble_type[1]);
+				/* (SIFS + CTS) + SIFS + frame + SIFS + ACK */
+				dur += le16_to_cpu(rts->duration);
+				dur_fallback +=
+					le16_to_cpu(txh->RTSDurFallback);
+			} else if (use_rifs) {
+				dur = frag_dur;
+				dur_fallback = 0;
+			} else {
+				/* frame + SIFS + ACK */
+				dur = frag_dur;
+				dur +=
+				    brcms_c_compute_frame_dur(wlc, rspec[0],
+							  preamble_type[0], 0);
+
+				dur_fallback =
+				    brcms_c_calc_frame_time(wlc, rspec[1],
+							preamble_type[1],
+							phylen);
+				dur_fallback +=
+				    brcms_c_compute_frame_dur(wlc, rspec[1],
+							  preamble_type[1], 0);
+			}
+			/* NEED to set TxFesTimeNormal (hard) */
+			txh->TxFesTimeNormal = cpu_to_le16((u16) dur);
+			/*
+			 * NEED to set fallback rate version of
+			 * TxFesTimeNormal (hard)
+			 */
+			txh->TxFesTimeFallback =
+				cpu_to_le16((u16) dur_fallback);
+
+			/*
+			 * update txop byte threshold (txop minus intraframe
+			 * overhead)
+			 */
+			if (wlc->edcf_txop[ac] >= (dur - frag_dur)) {
+				uint newfragthresh;
+
+				newfragthresh =
+				    brcms_c_calc_frame_len(wlc,
+					rspec[0], preamble_type[0],
+					(wlc->edcf_txop[ac] -
+						(dur - frag_dur)));
+				/* range bound the fragthreshold */
+				if (newfragthresh < DOT11_MIN_FRAG_LEN)
+					newfragthresh =
+					    DOT11_MIN_FRAG_LEN;
+				else if (newfragthresh >
+					 wlc->usr_fragthresh)
+					newfragthresh =
+					    wlc->usr_fragthresh;
+				/* update the fragthresh and do txc update */
+				if (wlc->fragthresh[queue] !=
+				    (u16) newfragthresh)
+					wlc->fragthresh[queue] =
+					    (u16) newfragthresh;
+			} else {
+				brcms_warn(wlc->hw->d11core,
+					   "wl%d: %s txop invalid for rate %d\n",
+					   wlc->pub->unit, fifo_names[queue],
+					   rspec2rate(rspec[0]));
+			}
+
+			if (dur > wlc->edcf_txop[ac])
+				brcms_warn(wlc->hw->d11core,
+					   "wl%d: %s: %s txop exceeded phylen %d/%d dur %d/%d\n",
+					   wlc->pub->unit, __func__,
+					   fifo_names[queue],
+					   phylen, wlc->fragthresh[queue],
+					   dur, wlc->edcf_txop[ac]);
+		}
+	}
+
+	return 0;
+}
+
+static int brcms_c_tx(struct brcms_c_info *wlc, struct sk_buff *skb)
+{
+	struct dma_pub *dma;
+	int fifo, ret = -ENOSPC;
+	struct d11txh *txh;
+	u16 frameid = INVALIDFID;
+
+	fifo = brcms_ac_to_fifo(skb_get_queue_mapping(skb));
+	dma = wlc->hw->di[fifo];
+	txh = (struct d11txh *)(skb->data);
+
+	if (dma->txavail == 0) {
+		/*
+		 * We sometimes get a frame from mac80211 after stopping
+		 * the queues. This only ever seems to be a single frame
+		 * and is seems likely to be a race. TX_HEADROOM should
+		 * ensure that we have enough space to handle these stray
+		 * packets, so warn if there isn't. If we're out of space
+		 * in the tx ring and the tx queue isn't stopped then
+		 * we've really got a bug; warn loudly if that happens.
+		 */
+		brcms_warn(wlc->hw->d11core,
+			   "Received frame for tx with no space in DMA ring\n");
+		WARN_ON(!ieee80211_queue_stopped(wlc->pub->ieee_hw,
+						 skb_get_queue_mapping(skb)));
+		return -ENOSPC;
+	}
+
+	/* When a BC/MC frame is being committed to the BCMC fifo
+	 * via DMA (NOT PIO), update ucode or BSS info as appropriate.
+	 */
+	if (fifo == TX_BCMC_FIFO)
+		frameid = le16_to_cpu(txh->TxFrameID);
+
+	/* Commit BCMC sequence number in the SHM frame ID location */
+	if (frameid != INVALIDFID) {
+		/*
+		 * To inform the ucode of the last mcast frame posted
+		 * so that it can clear moredata bit
+		 */
+		brcms_b_write_shm(wlc->hw, M_BCMC_FID, frameid);
+	}
+
+	ret = brcms_c_txfifo(wlc, fifo, skb);
+	/*
+	 * The only reason for brcms_c_txfifo to fail is because
+	 * there weren't any DMA descriptors, but we've already
+	 * checked for that. So if it does fail yell loudly.
+	 */
+	WARN_ON_ONCE(ret);
+
+	return ret;
+}
+
+bool brcms_c_sendpkt_mac80211(struct brcms_c_info *wlc, struct sk_buff *sdu,
+			      struct ieee80211_hw *hw)
+{
+	uint fifo;
+	struct scb *scb = &wlc->pri_scb;
+
+	fifo = brcms_ac_to_fifo(skb_get_queue_mapping(sdu));
+	brcms_c_d11hdrs_mac80211(wlc, hw, sdu, scb, 0, 1, fifo, 0);
+	if (!brcms_c_tx(wlc, sdu))
+		return true;
+
+	/* packet discarded */
+	dev_kfree_skb_any(sdu);
+	return false;
+}
+
+int
+brcms_c_txfifo(struct brcms_c_info *wlc, uint fifo, struct sk_buff *p)
+{
+	struct dma_pub *dma = wlc->hw->di[fifo];
+	int ret;
+	u16 queue;
+
+	ret = dma_txfast(wlc, dma, p);
+	if (ret	< 0)
+		wiphy_err(wlc->wiphy, "txfifo: fatal, toss frames !!!\n");
+
+	/*
+	 * Stop queue if DMA ring is full. Reserve some free descriptors,
+	 * as we sometimes receive a frame from mac80211 after the queues
+	 * are stopped.
+	 */
+	queue = skb_get_queue_mapping(p);
+	if (dma->txavail <= TX_HEADROOM && fifo < TX_BCMC_FIFO &&
+	    !ieee80211_queue_stopped(wlc->pub->ieee_hw, queue))
+		ieee80211_stop_queue(wlc->pub->ieee_hw, queue);
+
+	return ret;
+}
+
+u32
+brcms_c_rspec_to_rts_rspec(struct brcms_c_info *wlc, u32 rspec,
+			   bool use_rspec, u16 mimo_ctlchbw)
+{
+	u32 rts_rspec = 0;
+
+	if (use_rspec)
+		/* use frame rate as rts rate */
+		rts_rspec = rspec;
+	else if (wlc->band->gmode && wlc->protection->_g && !is_cck_rate(rspec))
+		/* Use 11Mbps as the g protection RTS target rate and fallback.
+		 * Use the brcms_basic_rate() lookup to find the best basic rate
+		 * under the target in case 11 Mbps is not Basic.
+		 * 6 and 9 Mbps are not usually selected by rate selection, but
+		 * even if the OFDM rate we are protecting is 6 or 9 Mbps, 11
+		 * is more robust.
+		 */
+		rts_rspec = brcms_basic_rate(wlc, BRCM_RATE_11M);
+	else
+		/* calculate RTS rate and fallback rate based on the frame rate
+		 * RTS must be sent at a basic rate since it is a
+		 * control frame, sec 9.6 of 802.11 spec
+		 */
+		rts_rspec = brcms_basic_rate(wlc, rspec);
+
+	if (BRCMS_PHY_11N_CAP(wlc->band)) {
+		/* set rts txbw to correct side band */
+		rts_rspec &= ~RSPEC_BW_MASK;
+
+		/*
+		 * if rspec/rspec_fallback is 40MHz, then send RTS on both
+		 * 20MHz channel (DUP), otherwise send RTS on control channel
+		 */
+		if (rspec_is40mhz(rspec) && !is_cck_rate(rts_rspec))
+			rts_rspec |= (PHY_TXC1_BW_40MHZ_DUP << RSPEC_BW_SHIFT);
+		else
+			rts_rspec |= (mimo_ctlchbw << RSPEC_BW_SHIFT);
+
+		/* pick siso/cdd as default for ofdm */
+		if (is_ofdm_rate(rts_rspec)) {
+			rts_rspec &= ~RSPEC_STF_MASK;
+			rts_rspec |= (wlc->stf->ss_opmode << RSPEC_STF_SHIFT);
+		}
+	}
+	return rts_rspec;
+}
+
+/* Update beacon listen interval in shared memory */
+static void brcms_c_bcn_li_upd(struct brcms_c_info *wlc)
+{
+	/* wake up every DTIM is the default */
+	if (wlc->bcn_li_dtim == 1)
+		brcms_b_write_shm(wlc->hw, M_BCN_LI, 0);
+	else
+		brcms_b_write_shm(wlc->hw, M_BCN_LI,
+			      (wlc->bcn_li_dtim << 8) | wlc->bcn_li_bcn);
+}
+
+static void
+brcms_b_read_tsf(struct brcms_hardware *wlc_hw, u32 *tsf_l_ptr,
+		  u32 *tsf_h_ptr)
+{
+	struct bcma_device *core = wlc_hw->d11core;
+
+	/* read the tsf timer low, then high to get an atomic read */
+	*tsf_l_ptr = bcma_read32(core, D11REGOFFS(tsf_timerlow));
+	*tsf_h_ptr = bcma_read32(core, D11REGOFFS(tsf_timerhigh));
+}
+
+/*
+ * recover 64bit TSF value from the 16bit TSF value in the rx header
+ * given the assumption that the TSF passed in header is within 65ms
+ * of the current tsf.
+ *
+ * 6       5       4       4       3       2       1
+ * 3.......6.......8.......0.......2.......4.......6.......8......0
+ * |<---------- tsf_h ----------->||<--- tsf_l -->||<-RxTSFTime ->|
+ *
+ * The RxTSFTime are the lowest 16 bits and provided by the ucode. The
+ * tsf_l is filled in by brcms_b_recv, which is done earlier in the
+ * receive call sequence after rx interrupt. Only the higher 16 bits
+ * are used. Finally, the tsf_h is read from the tsf register.
+ */
+static u64 brcms_c_recover_tsf64(struct brcms_c_info *wlc,
+				 struct d11rxhdr *rxh)
+{
+	u32 tsf_h, tsf_l;
+	u16 rx_tsf_0_15, rx_tsf_16_31;
+
+	brcms_b_read_tsf(wlc->hw, &tsf_l, &tsf_h);
+
+	rx_tsf_16_31 = (u16)(tsf_l >> 16);
+	rx_tsf_0_15 = rxh->RxTSFTime;
+
+	/*
+	 * a greater tsf time indicates the low 16 bits of
+	 * tsf_l wrapped, so decrement the high 16 bits.
+	 */
+	if ((u16)tsf_l < rx_tsf_0_15) {
+		rx_tsf_16_31 -= 1;
+		if (rx_tsf_16_31 == 0xffff)
+			tsf_h -= 1;
+	}
+
+	return ((u64)tsf_h << 32) | (((u32)rx_tsf_16_31 << 16) + rx_tsf_0_15);
+}
+
+static void
+prep_mac80211_status(struct brcms_c_info *wlc, struct d11rxhdr *rxh,
+		     struct sk_buff *p,
+		     struct ieee80211_rx_status *rx_status)
+{
+	int channel;
+	u32 rspec;
+	unsigned char *plcp;
+
+	/* fill in TSF and flag its presence */
+	rx_status->mactime = brcms_c_recover_tsf64(wlc, rxh);
+	rx_status->flag |= RX_FLAG_MACTIME_START;
+
+	channel = BRCMS_CHAN_CHANNEL(rxh->RxChan);
+
+	rx_status->band =
+		channel > 14 ? IEEE80211_BAND_5GHZ : IEEE80211_BAND_2GHZ;
+	rx_status->freq =
+		ieee80211_channel_to_frequency(channel, rx_status->band);
+
+	rx_status->signal = wlc_phy_rssi_compute(wlc->hw->band->pi, rxh);
+
+	/* noise */
+	/* qual */
+	rx_status->antenna =
+		(rxh->PhyRxStatus_0 & PRXS0_RXANT_UPSUBBAND) ? 1 : 0;
+
+	plcp = p->data;
+
+	rspec = brcms_c_compute_rspec(rxh, plcp);
+	if (is_mcs_rate(rspec)) {
+		rx_status->rate_idx = rspec & RSPEC_RATE_MASK;
+		rx_status->flag |= RX_FLAG_HT;
+		if (rspec_is40mhz(rspec))
+			rx_status->flag |= RX_FLAG_40MHZ;
+	} else {
+		switch (rspec2rate(rspec)) {
+		case BRCM_RATE_1M:
+			rx_status->rate_idx = 0;
+			break;
+		case BRCM_RATE_2M:
+			rx_status->rate_idx = 1;
+			break;
+		case BRCM_RATE_5M5:
+			rx_status->rate_idx = 2;
+			break;
+		case BRCM_RATE_11M:
+			rx_status->rate_idx = 3;
+			break;
+		case BRCM_RATE_6M:
+			rx_status->rate_idx = 4;
+			break;
+		case BRCM_RATE_9M:
+			rx_status->rate_idx = 5;
+			break;
+		case BRCM_RATE_12M:
+			rx_status->rate_idx = 6;
+			break;
+		case BRCM_RATE_18M:
+			rx_status->rate_idx = 7;
+			break;
+		case BRCM_RATE_24M:
+			rx_status->rate_idx = 8;
+			break;
+		case BRCM_RATE_36M:
+			rx_status->rate_idx = 9;
+			break;
+		case BRCM_RATE_48M:
+			rx_status->rate_idx = 10;
+			break;
+		case BRCM_RATE_54M:
+			rx_status->rate_idx = 11;
+			break;
+		default:
+			brcms_err(wlc->hw->d11core,
+				  "%s: Unknown rate\n", __func__);
+		}
+
+		/*
+		 * For 5GHz, we should decrease the index as it is
+		 * a subset of the 2.4G rates. See bitrates field
+		 * of brcms_band_5GHz_nphy (in mac80211_if.c).
+		 */
+		if (rx_status->band == IEEE80211_BAND_5GHZ)
+			rx_status->rate_idx -= BRCMS_LEGACY_5G_RATE_OFFSET;
+
+		/* Determine short preamble and rate_idx */
+		if (is_cck_rate(rspec)) {
+			if (rxh->PhyRxStatus_0 & PRXS0_SHORTH)
+				rx_status->flag |= RX_FLAG_SHORTPRE;
+		} else if (is_ofdm_rate(rspec)) {
+			rx_status->flag |= RX_FLAG_SHORTPRE;
+		} else {
+			brcms_err(wlc->hw->d11core, "%s: Unknown modulation\n",
+				  __func__);
+		}
+	}
+
+	if (plcp3_issgi(plcp[3]))
+		rx_status->flag |= RX_FLAG_SHORT_GI;
+
+	if (rxh->RxStatus1 & RXS_DECERR) {
+		rx_status->flag |= RX_FLAG_FAILED_PLCP_CRC;
+		brcms_err(wlc->hw->d11core, "%s:  RX_FLAG_FAILED_PLCP_CRC\n",
+			  __func__);
+	}
+	if (rxh->RxStatus1 & RXS_FCSERR) {
+		rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
+		brcms_err(wlc->hw->d11core, "%s:  RX_FLAG_FAILED_FCS_CRC\n",
+			  __func__);
+	}
+}
+
+static void
+brcms_c_recvctl(struct brcms_c_info *wlc, struct d11rxhdr *rxh,
+		struct sk_buff *p)
+{
+	int len_mpdu;
+	struct ieee80211_rx_status rx_status;
+	struct ieee80211_hdr *hdr;
+
+	memset(&rx_status, 0, sizeof(rx_status));
+	prep_mac80211_status(wlc, rxh, p, &rx_status);
+
+	/* mac header+body length, exclude CRC and plcp header */
+	len_mpdu = p->len - D11_PHY_HDR_LEN - FCS_LEN;
+	skb_pull(p, D11_PHY_HDR_LEN);
+	__skb_trim(p, len_mpdu);
+
+	/* unmute transmit */
+	if (wlc->hw->suspended_fifos) {
+		hdr = (struct ieee80211_hdr *)p->data;
+		if (ieee80211_is_beacon(hdr->frame_control))
+			brcms_b_mute(wlc->hw, false);
+	}
+
+	memcpy(IEEE80211_SKB_RXCB(p), &rx_status, sizeof(rx_status));
+	ieee80211_rx_irqsafe(wlc->pub->ieee_hw, p);
+}
+
+/* calculate frame duration for Mixed-mode L-SIG spoofing, return
+ * number of bytes goes in the length field
+ *
+ * Formula given by HT PHY Spec v 1.13
+ *   len = 3(nsyms + nstream + 3) - 3
+ */
+u16
+brcms_c_calc_lsig_len(struct brcms_c_info *wlc, u32 ratespec,
+		      uint mac_len)
+{
+	uint nsyms, len = 0, kNdps;
+
+	if (is_mcs_rate(ratespec)) {
+		uint mcs = ratespec & RSPEC_RATE_MASK;
+		int tot_streams = (mcs_2_txstreams(mcs) + 1) +
+				  rspec_stc(ratespec);
+
+		/*
+		 * the payload duration calculation matches that
+		 * of regular ofdm
+		 */
+		/* 1000Ndbps = kbps * 4 */
+		kNdps = mcs_2_rate(mcs, rspec_is40mhz(ratespec),
+				   rspec_issgi(ratespec)) * 4;
+
+		if (rspec_stc(ratespec) == 0)
+			nsyms =
+			    CEIL((APHY_SERVICE_NBITS + 8 * mac_len +
+				  APHY_TAIL_NBITS) * 1000, kNdps);
+		else
+			/* STBC needs to have even number of symbols */
+			nsyms =
+			    2 *
+			    CEIL((APHY_SERVICE_NBITS + 8 * mac_len +
+				  APHY_TAIL_NBITS) * 1000, 2 * kNdps);
+
+		/* (+3) account for HT-SIG(2) and HT-STF(1) */
+		nsyms += (tot_streams + 3);
+		/*
+		 * 3 bytes/symbol @ legacy 6Mbps rate
+		 * (-3) excluding service bits and tail bits
+		 */
+		len = (3 * nsyms) - 3;
+	}
+
+	return (u16) len;
+}
+
+static void
+brcms_c_mod_prb_rsp_rate_table(struct brcms_c_info *wlc, uint frame_len)
+{
+	const struct brcms_c_rateset *rs_dflt;
+	struct brcms_c_rateset rs;
+	u8 rate;
+	u16 entry_ptr;
+	u8 plcp[D11_PHY_HDR_LEN];
+	u16 dur, sifs;
+	uint i;
+
+	sifs = get_sifs(wlc->band);
+
+	rs_dflt = brcms_c_rateset_get_hwrs(wlc);
+
+	brcms_c_rateset_copy(rs_dflt, &rs);
+	brcms_c_rateset_mcs_upd(&rs, wlc->stf->txstreams);
+
+	/*
+	 * walk the phy rate table and update MAC core SHM
+	 * basic rate table entries
+	 */
+	for (i = 0; i < rs.count; i++) {
+		rate = rs.rates[i] & BRCMS_RATE_MASK;
+
+		entry_ptr = brcms_b_rate_shm_offset(wlc->hw, rate);
+
+		/* Calculate the Probe Response PLCP for the given rate */
+		brcms_c_compute_plcp(wlc, rate, frame_len, plcp);
+
+		/*
+		 * Calculate the duration of the Probe Response
+		 * frame plus SIFS for the MAC
+		 */
+		dur = (u16) brcms_c_calc_frame_time(wlc, rate,
+						BRCMS_LONG_PREAMBLE, frame_len);
+		dur += sifs;
+
+		/* Update the SHM Rate Table entry Probe Response values */
+		brcms_b_write_shm(wlc->hw, entry_ptr + M_RT_PRS_PLCP_POS,
+			      (u16) (plcp[0] + (plcp[1] << 8)));
+		brcms_b_write_shm(wlc->hw, entry_ptr + M_RT_PRS_PLCP_POS + 2,
+			      (u16) (plcp[2] + (plcp[3] << 8)));
+		brcms_b_write_shm(wlc->hw, entry_ptr + M_RT_PRS_DUR_POS, dur);
+	}
+}
+
+int brcms_c_get_header_len(void)
+{
+	return TXOFF;
+}
+
+static void brcms_c_beacon_write(struct brcms_c_info *wlc,
+				 struct sk_buff *beacon, u16 tim_offset,
+				 u16 dtim_period, bool bcn0, bool bcn1)
+{
+	size_t len;
+	struct ieee80211_tx_info *tx_info;
+	struct brcms_hardware *wlc_hw = wlc->hw;
+	struct ieee80211_hw *ieee_hw = brcms_c_pub(wlc)->ieee_hw;
+
+	/* Get tx_info */
+	tx_info = IEEE80211_SKB_CB(beacon);
+
+	len = min_t(size_t, beacon->len, BCN_TMPL_LEN);
+	wlc->bcn_rspec = ieee80211_get_tx_rate(ieee_hw, tx_info)->hw_value;
+
+	brcms_c_compute_plcp(wlc, wlc->bcn_rspec,
+			     len + FCS_LEN - D11_PHY_HDR_LEN, beacon->data);
+
+	/* "Regular" and 16 MBSS but not for 4 MBSS */
+	/* Update the phytxctl for the beacon based on the rspec */
+	brcms_c_beacon_phytxctl_txant_upd(wlc, wlc->bcn_rspec);
+
+	if (bcn0) {
+		/* write the probe response into the template region */
+		brcms_b_write_template_ram(wlc_hw, T_BCN0_TPL_BASE,
+					    (len + 3) & ~3, beacon->data);
+
+		/* write beacon length to SCR */
+		brcms_b_write_shm(wlc_hw, M_BCN0_FRM_BYTESZ, (u16) len);
+	}
+	if (bcn1) {
+		/* write the probe response into the template region */
+		brcms_b_write_template_ram(wlc_hw, T_BCN1_TPL_BASE,
+					    (len + 3) & ~3, beacon->data);
+
+		/* write beacon length to SCR */
+		brcms_b_write_shm(wlc_hw, M_BCN1_FRM_BYTESZ, (u16) len);
+	}
+
+	if (tim_offset != 0) {
+		brcms_b_write_shm(wlc_hw, M_TIMBPOS_INBEACON,
+				  tim_offset + D11B_PHY_HDR_LEN);
+		brcms_b_write_shm(wlc_hw, M_DOT11_DTIMPERIOD, dtim_period);
+	} else {
+		brcms_b_write_shm(wlc_hw, M_TIMBPOS_INBEACON,
+				  len + D11B_PHY_HDR_LEN);
+		brcms_b_write_shm(wlc_hw, M_DOT11_DTIMPERIOD, 0);
+	}
+}
+
+static void brcms_c_update_beacon_hw(struct brcms_c_info *wlc,
+				     struct sk_buff *beacon, u16 tim_offset,
+				     u16 dtim_period)
+{
+	struct brcms_hardware *wlc_hw = wlc->hw;
+	struct bcma_device *core = wlc_hw->d11core;
+
+	/* Hardware beaconing for this config */
+	u32 both_valid = MCMD_BCN0VLD | MCMD_BCN1VLD;
+
+	/* Check if both templates are in use, if so sched. an interrupt
+	 *      that will call back into this routine
+	 */
+	if ((bcma_read32(core, D11REGOFFS(maccommand)) & both_valid) == both_valid)
+		/* clear any previous status */
+		bcma_write32(core, D11REGOFFS(macintstatus), MI_BCNTPL);
+
+	if (wlc->beacon_template_virgin) {
+		wlc->beacon_template_virgin = false;
+		brcms_c_beacon_write(wlc, beacon, tim_offset, dtim_period, true,
+				     true);
+		/* mark beacon0 valid */
+		bcma_set32(core, D11REGOFFS(maccommand), MCMD_BCN0VLD);
+		return;
+	}
+
+	/* Check that after scheduling the interrupt both of the
+	 *      templates are still busy. if not clear the int. & remask
+	 */
+	if ((bcma_read32(core, D11REGOFFS(maccommand)) & both_valid) == both_valid) {
+		wlc->defmacintmask |= MI_BCNTPL;
+		return;
+	}
+
+	if (!(bcma_read32(core, D11REGOFFS(maccommand)) & MCMD_BCN0VLD)) {
+		brcms_c_beacon_write(wlc, beacon, tim_offset, dtim_period, true,
+				     false);
+		/* mark beacon0 valid */
+		bcma_set32(core, D11REGOFFS(maccommand), MCMD_BCN0VLD);
+		return;
+	}
+	if (!(bcma_read32(core, D11REGOFFS(maccommand)) & MCMD_BCN1VLD)) {
+		brcms_c_beacon_write(wlc, beacon, tim_offset, dtim_period,
+				     false, true);
+		/* mark beacon0 valid */
+		bcma_set32(core, D11REGOFFS(maccommand), MCMD_BCN1VLD);
+		return;
+	}
+	return;
+}
+
+/*
+ * Update all beacons for the system.
+ */
+void brcms_c_update_beacon(struct brcms_c_info *wlc)
+{
+	struct brcms_bss_cfg *bsscfg = wlc->bsscfg;
+
+	if (wlc->pub->up && (bsscfg->type == BRCMS_TYPE_AP ||
+			     bsscfg->type == BRCMS_TYPE_ADHOC)) {
+		/* Clear the soft intmask */
+		wlc->defmacintmask &= ~MI_BCNTPL;
+		if (!wlc->beacon)
+			return;
+		brcms_c_update_beacon_hw(wlc, wlc->beacon,
+					 wlc->beacon_tim_offset,
+					 wlc->beacon_dtim_period);
+	}
+}
+
+void brcms_c_set_new_beacon(struct brcms_c_info *wlc, struct sk_buff *beacon,
+			    u16 tim_offset, u16 dtim_period)
+{
+	if (!beacon)
+		return;
+	if (wlc->beacon)
+		dev_kfree_skb_any(wlc->beacon);
+	wlc->beacon = beacon;
+
+	/* add PLCP */
+	skb_push(wlc->beacon, D11_PHY_HDR_LEN);
+	wlc->beacon_tim_offset = tim_offset;
+	wlc->beacon_dtim_period = dtim_period;
+	brcms_c_update_beacon(wlc);
+}
+
+void brcms_c_set_new_probe_resp(struct brcms_c_info *wlc,
+				struct sk_buff *probe_resp)
+{
+	if (!probe_resp)
+		return;
+	if (wlc->probe_resp)
+		dev_kfree_skb_any(wlc->probe_resp);
+	wlc->probe_resp = probe_resp;
+
+	/* add PLCP */
+	skb_push(wlc->probe_resp, D11_PHY_HDR_LEN);
+	brcms_c_update_probe_resp(wlc, false);
+}
+
+void brcms_c_enable_probe_resp(struct brcms_c_info *wlc, bool enable)
+{
+	/*
+	 * prevent ucode from sending probe responses by setting the timeout
+	 * to 1, it can not send it in that time frame.
+	 */
+	wlc->prb_resp_timeout = enable ? BRCMS_PRB_RESP_TIMEOUT : 1;
+	brcms_b_write_shm(wlc->hw, M_PRS_MAXTIME, wlc->prb_resp_timeout);
+	/* TODO: if (enable) => also deactivate receiving of probe request */
+}
+
+/* Write ssid into shared memory */
+static void
+brcms_c_shm_ssid_upd(struct brcms_c_info *wlc, struct brcms_bss_cfg *cfg)
+{
+	u8 *ssidptr = cfg->SSID;
+	u16 base = M_SSID;
+	u8 ssidbuf[IEEE80211_MAX_SSID_LEN];
+
+	/* padding the ssid with zero and copy it into shm */
+	memset(ssidbuf, 0, IEEE80211_MAX_SSID_LEN);
+	memcpy(ssidbuf, ssidptr, cfg->SSID_len);
+
+	brcms_c_copyto_shm(wlc, base, ssidbuf, IEEE80211_MAX_SSID_LEN);
+	brcms_b_write_shm(wlc->hw, M_SSIDLEN, (u16) cfg->SSID_len);
+}
+
+static void
+brcms_c_bss_update_probe_resp(struct brcms_c_info *wlc,
+			      struct brcms_bss_cfg *cfg,
+			      struct sk_buff *probe_resp,
+			      bool suspend)
+{
+	int len;
+
+	len = min_t(size_t, probe_resp->len, BCN_TMPL_LEN);
+
+	if (suspend)
+		brcms_c_suspend_mac_and_wait(wlc);
+
+	/* write the probe response into the template region */
+	brcms_b_write_template_ram(wlc->hw, T_PRS_TPL_BASE,
+				    (len + 3) & ~3, probe_resp->data);
+
+	/* write the length of the probe response frame (+PLCP/-FCS) */
+	brcms_b_write_shm(wlc->hw, M_PRB_RESP_FRM_LEN, (u16) len);
+
+	/* write the SSID and SSID length */
+	brcms_c_shm_ssid_upd(wlc, cfg);
+
+	/*
+	 * Write PLCP headers and durations for probe response frames
+	 * at all rates. Use the actual frame length covered by the
+	 * PLCP header for the call to brcms_c_mod_prb_rsp_rate_table()
+	 * by subtracting the PLCP len and adding the FCS.
+	 */
+	brcms_c_mod_prb_rsp_rate_table(wlc,
+				      (u16)len + FCS_LEN - D11_PHY_HDR_LEN);
+
+	if (suspend)
+		brcms_c_enable_mac(wlc);
+}
+
+void brcms_c_update_probe_resp(struct brcms_c_info *wlc, bool suspend)
+{
+	struct brcms_bss_cfg *bsscfg = wlc->bsscfg;
+
+	/* update AP or IBSS probe responses */
+	if (wlc->pub->up && (bsscfg->type == BRCMS_TYPE_AP ||
+			     bsscfg->type == BRCMS_TYPE_ADHOC)) {
+		if (!wlc->probe_resp)
+			return;
+		brcms_c_bss_update_probe_resp(wlc, bsscfg, wlc->probe_resp,
+					      suspend);
+	}
+}
+
+int brcms_b_xmtfifo_sz_get(struct brcms_hardware *wlc_hw, uint fifo,
+			   uint *blocks)
+{
+	if (fifo >= NFIFO)
+		return -EINVAL;
+
+	*blocks = wlc_hw->xmtfifo_sz[fifo];
+
+	return 0;
+}
+
+void
+brcms_c_set_addrmatch(struct brcms_c_info *wlc, int match_reg_offset,
+		  const u8 *addr)
+{
+	brcms_b_set_addrmatch(wlc->hw, match_reg_offset, addr);
+	if (match_reg_offset == RCM_BSSID_OFFSET)
+		memcpy(wlc->bsscfg->BSSID, addr, ETH_ALEN);
+}
+
+/*
+ * Flag 'scan in progress' to withhold dynamic phy calibration
+ */
+void brcms_c_scan_start(struct brcms_c_info *wlc)
+{
+	wlc_phy_hold_upd(wlc->band->pi, PHY_HOLD_FOR_SCAN, true);
+}
+
+void brcms_c_scan_stop(struct brcms_c_info *wlc)
+{
+	wlc_phy_hold_upd(wlc->band->pi, PHY_HOLD_FOR_SCAN, false);
+}
+
+void brcms_c_associate_upd(struct brcms_c_info *wlc, bool state)
+{
+	wlc->pub->associated = state;
+}
+
+/*
+ * When a remote STA/AP is removed by Mac80211, or when it can no longer accept
+ * AMPDU traffic, packets pending in hardware have to be invalidated so that
+ * when later on hardware releases them, they can be handled appropriately.
+ */
+void brcms_c_inval_dma_pkts(struct brcms_hardware *hw,
+			       struct ieee80211_sta *sta,
+			       void (*dma_callback_fn))
+{
+	struct dma_pub *dmah;
+	int i;
+	for (i = 0; i < NFIFO; i++) {
+		dmah = hw->di[i];
+		if (dmah != NULL)
+			dma_walk_packets(dmah, dma_callback_fn, sta);
+	}
+}
+
+int brcms_c_get_curband(struct brcms_c_info *wlc)
+{
+	return wlc->band->bandunit;
+}
+
+bool brcms_c_tx_flush_completed(struct brcms_c_info *wlc)
+{
+	int i;
+
+	/* Kick DMA to send any pending AMPDU */
+	for (i = 0; i < ARRAY_SIZE(wlc->hw->di); i++)
+		if (wlc->hw->di[i])
+			dma_kick_tx(wlc->hw->di[i]);
+
+	return !brcms_txpktpendtot(wlc);
+}
+
+void brcms_c_set_beacon_listen_interval(struct brcms_c_info *wlc, u8 interval)
+{
+	wlc->bcn_li_bcn = interval;
+	if (wlc->pub->up)
+		brcms_c_bcn_li_upd(wlc);
+}
+
+u64 brcms_c_tsf_get(struct brcms_c_info *wlc)
+{
+	u32 tsf_h, tsf_l;
+	u64 tsf;
+
+	brcms_b_read_tsf(wlc->hw, &tsf_l, &tsf_h);
+
+	tsf = tsf_h;
+	tsf <<= 32;
+	tsf |= tsf_l;
+
+	return tsf;
+}
+
+void brcms_c_tsf_set(struct brcms_c_info *wlc, u64 tsf)
+{
+	u32 tsf_h, tsf_l;
+
+	brcms_c_time_lock(wlc);
+
+	tsf_l = tsf;
+	tsf_h = (tsf >> 32);
+
+	/* read the tsf timer low, then high to get an atomic read */
+	bcma_write32(wlc->hw->d11core, D11REGOFFS(tsf_timerlow), tsf_l);
+	bcma_write32(wlc->hw->d11core, D11REGOFFS(tsf_timerhigh), tsf_h);
+
+	brcms_c_time_unlock(wlc);
+}
+
+int brcms_c_set_tx_power(struct brcms_c_info *wlc, int txpwr)
+{
+	uint qdbm;
+
+	/* Remove override bit and clip to max qdbm value */
+	qdbm = min_t(uint, txpwr * BRCMS_TXPWR_DB_FACTOR, 0xff);
+	return wlc_phy_txpower_set(wlc->band->pi, qdbm, false);
+}
+
+int brcms_c_get_tx_power(struct brcms_c_info *wlc)
+{
+	uint qdbm;
+	bool override;
+
+	wlc_phy_txpower_get(wlc->band->pi, &qdbm, &override);
+
+	/* Return qdbm units */
+	return (int)(qdbm / BRCMS_TXPWR_DB_FACTOR);
+}
+
+/* Process received frames */
+/*
+ * Return true if more frames need to be processed. false otherwise.
+ * Param 'bound' indicates max. # frames to process before break out.
+ */
+static void brcms_c_recv(struct brcms_c_info *wlc, struct sk_buff *p)
+{
+	struct d11rxhdr *rxh;
+	struct ieee80211_hdr *h;
+	uint len;
+	bool is_amsdu;
+
+	/* frame starts with rxhdr */
+	rxh = (struct d11rxhdr *) (p->data);
+
+	/* strip off rxhdr */
+	skb_pull(p, BRCMS_HWRXOFF);
+
+	/* MAC inserts 2 pad bytes for a4 headers or QoS or A-MSDU subframes */
+	if (rxh->RxStatus1 & RXS_PBPRES) {
+		if (p->len < 2) {
+			brcms_err(wlc->hw->d11core,
+				  "wl%d: recv: rcvd runt of len %d\n",
+				  wlc->pub->unit, p->len);
+			goto toss;
+		}
+		skb_pull(p, 2);
+	}
+
+	h = (struct ieee80211_hdr *)(p->data + D11_PHY_HDR_LEN);
+	len = p->len;
+
+	if (rxh->RxStatus1 & RXS_FCSERR) {
+		if (!(wlc->filter_flags & FIF_FCSFAIL))
+			goto toss;
+	}
+
+	/* check received pkt has at least frame control field */
+	if (len < D11_PHY_HDR_LEN + sizeof(h->frame_control))
+		goto toss;
+
+	/* not supporting A-MSDU */
+	is_amsdu = rxh->RxStatus2 & RXS_AMSDU_MASK;
+	if (is_amsdu)
+		goto toss;
+
+	brcms_c_recvctl(wlc, rxh, p);
+	return;
+
+ toss:
+	brcmu_pkt_buf_free_skb(p);
+}
+
+/* Process received frames */
+/*
+ * Return true if more frames need to be processed. false otherwise.
+ * Param 'bound' indicates max. # frames to process before break out.
+ */
+static bool
+brcms_b_recv(struct brcms_hardware *wlc_hw, uint fifo, bool bound)
+{
+	struct sk_buff *p;
+	struct sk_buff *next = NULL;
+	struct sk_buff_head recv_frames;
+
+	uint n = 0;
+	uint bound_limit = bound ? RXBND : -1;
+	bool morepending = false;
+
+	skb_queue_head_init(&recv_frames);
+
+	/* gather received frames */
+	do {
+		/* !give others some time to run! */
+		if (n >= bound_limit)
+			break;
+
+		morepending = dma_rx(wlc_hw->di[fifo], &recv_frames);
+		n++;
+	} while (morepending);
+
+	/* post more rbufs */
+	dma_rxfill(wlc_hw->di[fifo]);
+
+	/* process each frame */
+	skb_queue_walk_safe(&recv_frames, p, next) {
+		struct d11rxhdr_le *rxh_le;
+		struct d11rxhdr *rxh;
+
+		skb_unlink(p, &recv_frames);
+		rxh_le = (struct d11rxhdr_le *)p->data;
+		rxh = (struct d11rxhdr *)p->data;
+
+		/* fixup rx header endianness */
+		rxh->RxFrameSize = le16_to_cpu(rxh_le->RxFrameSize);
+		rxh->PhyRxStatus_0 = le16_to_cpu(rxh_le->PhyRxStatus_0);
+		rxh->PhyRxStatus_1 = le16_to_cpu(rxh_le->PhyRxStatus_1);
+		rxh->PhyRxStatus_2 = le16_to_cpu(rxh_le->PhyRxStatus_2);
+		rxh->PhyRxStatus_3 = le16_to_cpu(rxh_le->PhyRxStatus_3);
+		rxh->PhyRxStatus_4 = le16_to_cpu(rxh_le->PhyRxStatus_4);
+		rxh->PhyRxStatus_5 = le16_to_cpu(rxh_le->PhyRxStatus_5);
+		rxh->RxStatus1 = le16_to_cpu(rxh_le->RxStatus1);
+		rxh->RxStatus2 = le16_to_cpu(rxh_le->RxStatus2);
+		rxh->RxTSFTime = le16_to_cpu(rxh_le->RxTSFTime);
+		rxh->RxChan = le16_to_cpu(rxh_le->RxChan);
+
+		brcms_c_recv(wlc_hw->wlc, p);
+	}
+
+	return morepending;
+}
+
+/* second-level interrupt processing
+ *   Return true if another dpc needs to be re-scheduled. false otherwise.
+ *   Param 'bounded' indicates if applicable loops should be bounded.
+ */
+bool brcms_c_dpc(struct brcms_c_info *wlc, bool bounded)
+{
+	u32 macintstatus;
+	struct brcms_hardware *wlc_hw = wlc->hw;
+	struct bcma_device *core = wlc_hw->d11core;
+
+	if (brcms_deviceremoved(wlc)) {
+		brcms_err(core, "wl%d: %s: dead chip\n", wlc_hw->unit,
+			  __func__);
+		brcms_down(wlc->wl);
+		return false;
+	}
+
+	/* grab and clear the saved software intstatus bits */
+	macintstatus = wlc->macintstatus;
+	wlc->macintstatus = 0;
+
+	brcms_dbg_int(core, "wl%d: macintstatus 0x%x\n",
+		      wlc_hw->unit, macintstatus);
+
+	WARN_ON(macintstatus & MI_PRQ); /* PRQ Interrupt in non-MBSS */
+
+	/* tx status */
+	if (macintstatus & MI_TFS) {
+		bool fatal;
+		if (brcms_b_txstatus(wlc->hw, bounded, &fatal))
+			wlc->macintstatus |= MI_TFS;
+		if (fatal) {
+			brcms_err(core, "MI_TFS: fatal\n");
+			goto fatal;
+		}
+	}
+
+	if (macintstatus & (MI_TBTT | MI_DTIM_TBTT))
+		brcms_c_tbtt(wlc);
+
+	/* ATIM window end */
+	if (macintstatus & MI_ATIMWINEND) {
+		brcms_dbg_info(core, "end of ATIM window\n");
+		bcma_set32(core, D11REGOFFS(maccommand), wlc->qvalid);
+		wlc->qvalid = 0;
+	}
+
+	/*
+	 * received data or control frame, MI_DMAINT is
+	 * indication of RX_FIFO interrupt
+	 */
+	if (macintstatus & MI_DMAINT)
+		if (brcms_b_recv(wlc_hw, RX_FIFO, bounded))
+			wlc->macintstatus |= MI_DMAINT;
+
+	/* noise sample collected */
+	if (macintstatus & MI_BG_NOISE)
+		wlc_phy_noise_sample_intr(wlc_hw->band->pi);
+
+	if (macintstatus & MI_GP0) {
+		brcms_err(core, "wl%d: PSM microcode watchdog fired at %d "
+			  "(seconds). Resetting.\n", wlc_hw->unit, wlc_hw->now);
+
+		printk_once("%s : PSM Watchdog, chipid 0x%x, chiprev 0x%x\n",
+			    __func__, ai_get_chip_id(wlc_hw->sih),
+			    ai_get_chiprev(wlc_hw->sih));
+		brcms_fatal_error(wlc_hw->wlc->wl);
+	}
+
+	/* gptimer timeout */
+	if (macintstatus & MI_TO)
+		bcma_write32(core, D11REGOFFS(gptimer), 0);
+
+	if (macintstatus & MI_RFDISABLE) {
+		brcms_dbg_info(core, "wl%d: BMAC Detected a change on the"
+			       " RF Disable Input\n", wlc_hw->unit);
+		brcms_rfkill_set_hw_state(wlc->wl);
+	}
+
+	/* BCN template is available */
+	if (macintstatus & MI_BCNTPL)
+		brcms_c_update_beacon(wlc);
+
+	/* it isn't done and needs to be resched if macintstatus is non-zero */
+	return wlc->macintstatus != 0;
+
+ fatal:
+	brcms_fatal_error(wlc_hw->wlc->wl);
+	return wlc->macintstatus != 0;
+}
+
+void brcms_c_init(struct brcms_c_info *wlc, bool mute_tx)
+{
+	struct bcma_device *core = wlc->hw->d11core;
+	struct ieee80211_channel *ch = wlc->pub->ieee_hw->conf.chandef.chan;
+	u16 chanspec;
+
+	brcms_dbg_info(core, "wl%d\n", wlc->pub->unit);
+
+	chanspec = ch20mhz_chspec(ch->hw_value);
+
+	brcms_b_init(wlc->hw, chanspec);
+
+	/* update beacon listen interval */
+	brcms_c_bcn_li_upd(wlc);
+
+	/* write ethernet address to core */
+	brcms_c_set_mac(wlc->bsscfg);
+	brcms_c_set_bssid(wlc->bsscfg);
+
+	/* Update tsf_cfprep if associated and up */
+	if (wlc->pub->associated && wlc->pub->up) {
+		u32 bi;
+
+		/* get beacon period and convert to uS */
+		bi = wlc->bsscfg->current_bss->beacon_period << 10;
+		/*
+		 * update since init path would reset
+		 * to default value
+		 */
+		bcma_write32(core, D11REGOFFS(tsf_cfprep),
+			     bi << CFPREP_CBI_SHIFT);
+
+		/* Update maccontrol PM related bits */
+		brcms_c_set_ps_ctrl(wlc);
+	}
+
+	brcms_c_bandinit_ordered(wlc, chanspec);
+
+	/* init probe response timeout */
+	brcms_b_write_shm(wlc->hw, M_PRS_MAXTIME, wlc->prb_resp_timeout);
+
+	/* init max burst txop (framebursting) */
+	brcms_b_write_shm(wlc->hw, M_MBURST_TXOP,
+		      (wlc->
+		       _rifs ? (EDCF_AC_VO_TXOP_AP << 5) : MAXFRAMEBURST_TXOP));
+
+	/* initialize maximum allowed duty cycle */
+	brcms_c_duty_cycle_set(wlc, wlc->tx_duty_cycle_ofdm, true, true);
+	brcms_c_duty_cycle_set(wlc, wlc->tx_duty_cycle_cck, false, true);
+
+	/*
+	 * Update some shared memory locations related to
+	 * max AMPDU size allowed to received
+	 */
+	brcms_c_ampdu_shm_upd(wlc->ampdu);
+
+	/* band-specific inits */
+	brcms_c_bsinit(wlc);
+
+	/* Enable EDCF mode (while the MAC is suspended) */
+	bcma_set16(core, D11REGOFFS(ifs_ctl), IFS_USEEDCF);
+	brcms_c_edcf_setparams(wlc, false);
+
+	/* read the ucode version if we have not yet done so */
+	if (wlc->ucode_rev == 0) {
+		u16 rev;
+		u16 patch;
+
+		rev = brcms_b_read_shm(wlc->hw, M_BOM_REV_MAJOR);
+		patch = brcms_b_read_shm(wlc->hw, M_BOM_REV_MINOR);
+		wlc->ucode_rev = (rev << NBITS(u16)) | patch;
+		snprintf(wlc->wiphy->fw_version,
+			 sizeof(wlc->wiphy->fw_version), "%u.%u", rev, patch);
+	}
+
+	/* ..now really unleash hell (allow the MAC out of suspend) */
+	brcms_c_enable_mac(wlc);
+
+	/* suspend the tx fifos and mute the phy for preism cac time */
+	if (mute_tx)
+		brcms_b_mute(wlc->hw, true);
+
+	/* enable the RF Disable Delay timer */
+	bcma_write32(core, D11REGOFFS(rfdisabledly), RFDISABLE_DEFAULT);
+
+	/*
+	 * Initialize WME parameters; if they haven't been set by some other
+	 * mechanism (IOVar, etc) then read them from the hardware.
+	 */
+	if (GFIELD(wlc->wme_retries[0], EDCF_SHORT) == 0) {
+		/* Uninitialized; read from HW */
+		int ac;
+
+		for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
+			wlc->wme_retries[ac] =
+			    brcms_b_read_shm(wlc->hw, M_AC_TXLMT_ADDR(ac));
+	}
+}
+
+/*
+ * The common driver entry routine. Error codes should be unique
+ */
+struct brcms_c_info *
+brcms_c_attach(struct brcms_info *wl, struct bcma_device *core, uint unit,
+	       bool piomode, uint *perr)
+{
+	struct brcms_c_info *wlc;
+	uint err = 0;
+	uint i, j;
+	struct brcms_pub *pub;
+
+	/* allocate struct brcms_c_info state and its substructures */
+	wlc = brcms_c_attach_malloc(unit, &err, 0);
+	if (wlc == NULL)
+		goto fail;
+	wlc->wiphy = wl->wiphy;
+	pub = wlc->pub;
+
+#if defined(DEBUG)
+	wlc_info_dbg = wlc;
+#endif
+
+	wlc->band = wlc->bandstate[0];
+	wlc->core = wlc->corestate;
+	wlc->wl = wl;
+	pub->unit = unit;
+	pub->_piomode = piomode;
+	wlc->bandinit_pending = false;
+	wlc->beacon_template_virgin = true;
+
+	/* populate struct brcms_c_info with default values  */
+	brcms_c_info_init(wlc, unit);
+
+	/* update sta/ap related parameters */
+	brcms_c_ap_upd(wlc);
+
+	/*
+	 * low level attach steps(all hw accesses go
+	 * inside, no more in rest of the attach)
+	 */
+	err = brcms_b_attach(wlc, core, unit, piomode);
+	if (err)
+		goto fail;
+
+	brcms_c_protection_upd(wlc, BRCMS_PROT_N_PAM_OVR, OFF);
+
+	pub->phy_11ncapable = BRCMS_PHY_11N_CAP(wlc->band);
+
+	/* disable allowed duty cycle */
+	wlc->tx_duty_cycle_ofdm = 0;
+	wlc->tx_duty_cycle_cck = 0;
+
+	brcms_c_stf_phy_chain_calc(wlc);
+
+	/* txchain 1: txant 0, txchain 2: txant 1 */
+	if (BRCMS_ISNPHY(wlc->band) && (wlc->stf->txstreams == 1))
+		wlc->stf->txant = wlc->stf->hw_txchain - 1;
+
+	/* push to BMAC driver */
+	wlc_phy_stf_chain_init(wlc->band->pi, wlc->stf->hw_txchain,
+			       wlc->stf->hw_rxchain);
+
+	/* pull up some info resulting from the low attach */
+	for (i = 0; i < NFIFO; i++)
+		wlc->core->txavail[i] = wlc->hw->txavail[i];
+
+	memcpy(&wlc->perm_etheraddr, &wlc->hw->etheraddr, ETH_ALEN);
+	memcpy(&pub->cur_etheraddr, &wlc->hw->etheraddr, ETH_ALEN);
+
+	for (j = 0; j < wlc->pub->_nbands; j++) {
+		wlc->band = wlc->bandstate[j];
+
+		if (!brcms_c_attach_stf_ant_init(wlc)) {
+			err = 24;
+			goto fail;
+		}
+
+		/* default contention windows size limits */
+		wlc->band->CWmin = APHY_CWMIN;
+		wlc->band->CWmax = PHY_CWMAX;
+
+		/* init gmode value */
+		if (wlc->band->bandtype == BRCM_BAND_2G) {
+			wlc->band->gmode = GMODE_AUTO;
+			brcms_c_protection_upd(wlc, BRCMS_PROT_G_USER,
+					   wlc->band->gmode);
+		}
+
+		/* init _n_enab supported mode */
+		if (BRCMS_PHY_11N_CAP(wlc->band)) {
+			pub->_n_enab = SUPPORT_11N;
+			brcms_c_protection_upd(wlc, BRCMS_PROT_N_USER,
+						   ((pub->_n_enab ==
+						     SUPPORT_11N) ? WL_11N_2x2 :
+						    WL_11N_3x3));
+		}
+
+		/* init per-band default rateset, depend on band->gmode */
+		brcms_default_rateset(wlc, &wlc->band->defrateset);
+
+		/* fill in hw_rateset */
+		brcms_c_rateset_filter(&wlc->band->defrateset,
+				   &wlc->band->hw_rateset, false,
+				   BRCMS_RATES_CCK_OFDM, BRCMS_RATE_MASK,
+				   (bool) (wlc->pub->_n_enab & SUPPORT_11N));
+	}
+
+	/*
+	 * update antenna config due to
+	 * wlc->stf->txant/txchain/ant_rx_ovr change
+	 */
+	brcms_c_stf_phy_txant_upd(wlc);
+
+	/* attach each modules */
+	err = brcms_c_attach_module(wlc);
+	if (err != 0)
+		goto fail;
+
+	if (!brcms_c_timers_init(wlc, unit)) {
+		wiphy_err(wl->wiphy, "wl%d: %s: init_timer failed\n", unit,
+			  __func__);
+		err = 32;
+		goto fail;
+	}
+
+	/* depend on rateset, gmode */
+	wlc->cmi = brcms_c_channel_mgr_attach(wlc);
+	if (!wlc->cmi) {
+		wiphy_err(wl->wiphy, "wl%d: %s: channel_mgr_attach failed"
+			  "\n", unit, __func__);
+		err = 33;
+		goto fail;
+	}
+
+	/* init default when all parameters are ready, i.e. ->rateset */
+	brcms_c_bss_default_init(wlc);
+
+	/*
+	 * Complete the wlc default state initializations..
+	 */
+
+	wlc->bsscfg->wlc = wlc;
+
+	wlc->mimoft = FT_HT;
+	wlc->mimo_40txbw = AUTO;
+	wlc->ofdm_40txbw = AUTO;
+	wlc->cck_40txbw = AUTO;
+	brcms_c_update_mimo_band_bwcap(wlc, BRCMS_N_BW_20IN2G_40IN5G);
+
+	/* Set default values of SGI */
+	if (BRCMS_SGI_CAP_PHY(wlc)) {
+		brcms_c_ht_update_sgi_rx(wlc, (BRCMS_N_SGI_20 |
+					       BRCMS_N_SGI_40));
+	} else if (BRCMS_ISSSLPNPHY(wlc->band)) {
+		brcms_c_ht_update_sgi_rx(wlc, (BRCMS_N_SGI_20 |
+					       BRCMS_N_SGI_40));
+	} else {
+		brcms_c_ht_update_sgi_rx(wlc, 0);
+	}
+
+	brcms_b_antsel_set(wlc->hw, wlc->asi->antsel_avail);
+
+	if (perr)
+		*perr = 0;
+
+	return wlc;
+
+ fail:
+	wiphy_err(wl->wiphy, "wl%d: %s: failed with err %d\n",
+		  unit, __func__, err);
+	if (wlc)
+		brcms_c_detach(wlc);
+
+	if (perr)
+		*perr = err;
+	return NULL;
+}