3 files changed, 303 insertions, 254 deletions

diff --git a/drivers/net/wireless/b43legacy/b43legacy.h b/drivers/net/wireless/b43legacy/b43legacy.h
index 93d45b71799..242b8ad4e33 100644
--- a/drivers/net/wireless/b43legacy/b43legacy.h
+++ b/drivers/net/wireless/b43legacy/b43legacy.h
@@ -130,13 +130,19 @@
 #define B43legacy_SHM_SH_HOSTFHI	0x0060 /* Hostflags ucode opts (high) */
 /* SHM_SHARED crypto engine */
 #define B43legacy_SHM_SH_KEYIDXBLOCK	0x05D4 /* Key index/algorithm block */
-/* SHM_SHARED beacon variables */
+/* SHM_SHARED beacon/AP variables */
+#define B43legacy_SHM_SH_DTIMP		0x0012 /* DTIM period */
+#define B43legacy_SHM_SH_BTL0		0x0018 /* Beacon template length 0 */
+#define B43legacy_SHM_SH_BTL1		0x001A /* Beacon template length 1 */
+#define B43legacy_SHM_SH_BTSFOFF	0x001C /* Beacon TSF offset */
+#define B43legacy_SHM_SH_TIMPOS		0x001E /* TIM position in beacon */
 #define B43legacy_SHM_SH_BEACPHYCTL	0x0054 /* Beacon PHY TX control word */
 /* SHM_SHARED ACK/CTS control */
 #define B43legacy_SHM_SH_ACKCTSPHYCTL	0x0022 /* ACK/CTS PHY control word */
 /* SHM_SHARED probe response variables */
-#define B43legacy_SHM_SH_PRPHYCTL	0x0188 /* Probe Resp PHY TX control */
+#define B43legacy_SHM_SH_PRTLEN		0x004A /* Probe Response template length */
 #define B43legacy_SHM_SH_PRMAXTIME	0x0074 /* Probe Response max time */
+#define B43legacy_SHM_SH_PRPHYCTL	0x0188 /* Probe Resp PHY TX control */
 /* SHM_SHARED rate tables */
 /* SHM_SHARED microcode soft registers */
 #define B43legacy_SHM_SH_UCODEREV	0x0000 /* Microcode revision */
@@ -199,6 +205,13 @@
 #define B43legacy_MACCTL_TBTTHOLD	0x10000000 /* TBTT Hold */
 #define B43legacy_MACCTL_GMODE		0x80000000 /* G Mode */
 
+/* MAC Command bitfield */
+#define B43legacy_MACCMD_BEACON0_VALID	0x00000001 /* Beacon 0 in template RAM is busy/valid */
+#define B43legacy_MACCMD_BEACON1_VALID	0x00000002 /* Beacon 1 in template RAM is busy/valid */
+#define B43legacy_MACCMD_DFQ_VALID	0x00000004 /* Directed frame queue valid (IBSS PS mode, ATIM) */
+#define B43legacy_MACCMD_CCA		0x00000008 /* Clear channel assessment */
+#define B43legacy_MACCMD_BGNOISE	0x00000010 /* Background noise */
+
 /* 802.11 core specific TM State Low flags */
 #define B43legacy_TMSLOW_GMODE		0x20000000 /* G Mode Enable */
 #define B43legacy_TMSLOW_PLLREFSEL	0x00200000 /* PLL Freq Ref Select */
@@ -317,15 +330,7 @@ enum {
 # undef assert
 #endif
 #ifdef CONFIG_B43LEGACY_DEBUG
-# define B43legacy_WARN_ON(expr)					\
-	do {								\
-		if (unlikely((expr))) {					\
-			printk(KERN_INFO PFX "Test (%s) failed at:"	\
-					      " %s:%d:%s()\n",		\
-					      #expr, __FILE__,		\
-					      __LINE__, __FUNCTION__);	\
-		}							\
-	} while (0)
+# define B43legacy_WARN_ON(x)	WARN_ON(x)
 # define B43legacy_BUG_ON(expr)						\
 	do {								\
 		if (unlikely((expr))) {					\
@@ -336,7 +341,9 @@ enum {
 	} while (0)
 # define B43legacy_DEBUG	1
 #else
-# define B43legacy_WARN_ON(x)	do { /* nothing */ } while (0)
+/* This will evaluate the argument even if debugging is disabled. */
+static inline bool __b43legacy_warn_on_dummy(bool x) { return x; }
+# define B43legacy_WARN_ON(x)	__b43legacy_warn_on_dummy(unlikely(!!(x)))
 # define B43legacy_BUG_ON(x)	do { /* nothing */ } while (0)
 # define B43legacy_DEBUG	0
 #endif
@@ -392,10 +399,6 @@ struct b43legacy_phy {
 	u8 possible_phymodes;
 	/* GMODE bit enabled in MACCTL? */
 	bool gmode;
-	/* Possible ieee80211 subsystem hwmodes for this PHY.
-	 * Which mode is selected, depends on thr GMODE enabled bit */
-#define B43legacy_MAX_PHYHWMODES	2
-	struct ieee80211_hw_mode hwmodes[B43legacy_MAX_PHYHWMODES];
 
 	/* Analog Type */
 	u8 analog;
@@ -598,6 +601,12 @@ struct b43legacy_wl {
 	u8 nr_devs;
 
 	bool radiotap_enabled;
+
+	/* The beacon we are currently using (AP or IBSS mode).
+	 * This beacon stuff is protected by the irq_lock. */
+	struct sk_buff *current_beacon;
+	bool beacon0_uploaded;
+	bool beacon1_uploaded;
 };
 
 /* Pointers to the firmware data and meta information about it. */
@@ -649,7 +658,7 @@ struct b43legacy_wldev {
 
 	bool __using_pio;	/* Using pio rather than dma. */
 	bool bad_frames_preempt;/* Use "Bad Frames Preemption". */
-	bool reg124_set_0x4;	/* Variable to keep track of IRQ. */
+	bool dfq_valid;		/* Directed frame queue valid (IBSS PS mode, ATIM). */
 	bool short_preamble;	/* TRUE if using short preamble. */
 	bool short_slot;	/* TRUE if using short slot timing. */
 	bool radio_hw_enable;	/* State of radio hardware enable bit. */
@@ -696,9 +705,6 @@ struct b43legacy_wldev {
 	u8 max_nr_keys;
 	struct b43legacy_key key[58];
 
-	/* Cached beacon template while uploading the template. */
-	struct sk_buff *cached_beacon;
-
 	/* Firmware data */
 	struct b43legacy_firmware fw;
 
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index 5f3f34e1dbf..f518e796bde 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -95,28 +95,29 @@ MODULE_DEVICE_TABLE(ssb, b43legacy_ssb_tbl);
  * data in there. This data is the same for all devices, so we don't
  * get concurrency issues */
 #define RATETAB_ENT(_rateid, _flags) \
-	{							\
-		.rate	= B43legacy_RATE_TO_100KBPS(_rateid),	\
-		.val	= (_rateid),				\
-		.val2	= (_rateid),				\
-		.flags	= (_flags),				\
+	{								\
+		.bitrate	= B43legacy_RATE_TO_100KBPS(_rateid),	\
+		.hw_value	= (_rateid),				\
+		.flags		= (_flags),				\
 	}
+/*
+ * NOTE: When changing this, sync with xmit.c's
+ *	 b43legacy_plcp_get_bitrate_idx_* functions!
+ */
 static struct ieee80211_rate __b43legacy_ratetable[] = {
-	RATETAB_ENT(B43legacy_CCK_RATE_1MB, IEEE80211_RATE_CCK),
-	RATETAB_ENT(B43legacy_CCK_RATE_2MB, IEEE80211_RATE_CCK_2),
-	RATETAB_ENT(B43legacy_CCK_RATE_5MB, IEEE80211_RATE_CCK_2),
-	RATETAB_ENT(B43legacy_CCK_RATE_11MB, IEEE80211_RATE_CCK_2),
-	RATETAB_ENT(B43legacy_OFDM_RATE_6MB, IEEE80211_RATE_OFDM),
-	RATETAB_ENT(B43legacy_OFDM_RATE_9MB, IEEE80211_RATE_OFDM),
-	RATETAB_ENT(B43legacy_OFDM_RATE_12MB, IEEE80211_RATE_OFDM),
-	RATETAB_ENT(B43legacy_OFDM_RATE_18MB, IEEE80211_RATE_OFDM),
-	RATETAB_ENT(B43legacy_OFDM_RATE_24MB, IEEE80211_RATE_OFDM),
-	RATETAB_ENT(B43legacy_OFDM_RATE_36MB, IEEE80211_RATE_OFDM),
-	RATETAB_ENT(B43legacy_OFDM_RATE_48MB, IEEE80211_RATE_OFDM),
-	RATETAB_ENT(B43legacy_OFDM_RATE_54MB, IEEE80211_RATE_OFDM),
+	RATETAB_ENT(B43legacy_CCK_RATE_1MB, 0),
+	RATETAB_ENT(B43legacy_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE),
+	RATETAB_ENT(B43legacy_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE),
+	RATETAB_ENT(B43legacy_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE),
+	RATETAB_ENT(B43legacy_OFDM_RATE_6MB, 0),
+	RATETAB_ENT(B43legacy_OFDM_RATE_9MB, 0),
+	RATETAB_ENT(B43legacy_OFDM_RATE_12MB, 0),
+	RATETAB_ENT(B43legacy_OFDM_RATE_18MB, 0),
+	RATETAB_ENT(B43legacy_OFDM_RATE_24MB, 0),
+	RATETAB_ENT(B43legacy_OFDM_RATE_36MB, 0),
+	RATETAB_ENT(B43legacy_OFDM_RATE_48MB, 0),
+	RATETAB_ENT(B43legacy_OFDM_RATE_54MB, 0),
 };
-#define b43legacy_a_ratetable		(__b43legacy_ratetable + 4)
-#define b43legacy_a_ratetable_size	8
 #define b43legacy_b_ratetable		(__b43legacy_ratetable + 0)
 #define b43legacy_b_ratetable_size	4
 #define b43legacy_g_ratetable		(__b43legacy_ratetable + 0)
@@ -124,14 +125,8 @@ static struct ieee80211_rate __b43legacy_ratetable[] = {
 
 #define CHANTAB_ENT(_chanid, _freq) \
 	{							\
-		.chan	= (_chanid),				\
-		.freq	= (_freq),				\
-		.val	= (_chanid),				\
-		.flag	= IEEE80211_CHAN_W_SCAN |		\
-			  IEEE80211_CHAN_W_ACTIVE_SCAN |	\
-			  IEEE80211_CHAN_W_IBSS,		\
-		.power_level	= 0x0A,				\
-		.antenna_max	= 0xFF,				\
+		.center_freq	= (_freq),			\
+		.hw_value	= (_chanid),			\
 	}
 static struct ieee80211_channel b43legacy_bg_chantable[] = {
 	CHANTAB_ENT(1, 2412),
@@ -149,7 +144,20 @@ static struct ieee80211_channel b43legacy_bg_chantable[] = {
 	CHANTAB_ENT(13, 2472),
 	CHANTAB_ENT(14, 2484),
 };
-#define b43legacy_bg_chantable_size	ARRAY_SIZE(b43legacy_bg_chantable)
+
+static struct ieee80211_supported_band b43legacy_band_2GHz_BPHY = {
+	.channels = b43legacy_bg_chantable,
+	.n_channels = ARRAY_SIZE(b43legacy_bg_chantable),
+	.bitrates = b43legacy_b_ratetable,
+	.n_bitrates = b43legacy_b_ratetable_size,
+};
+
+static struct ieee80211_supported_band b43legacy_band_2GHz_GPHY = {
+	.channels = b43legacy_bg_chantable,
+	.n_channels = ARRAY_SIZE(b43legacy_bg_chantable),
+	.bitrates = b43legacy_g_ratetable,
+	.n_bitrates = b43legacy_g_ratetable_size,
+};
 
 static void b43legacy_wireless_core_exit(struct b43legacy_wldev *dev);
 static int b43legacy_wireless_core_init(struct b43legacy_wldev *dev);
@@ -797,9 +805,8 @@ static void b43legacy_generate_noise_sample(struct b43legacy_wldev *dev)
 {
 	b43legacy_jssi_write(dev, 0x7F7F7F7F);
 	b43legacy_write32(dev, B43legacy_MMIO_MACCMD,
-			  b43legacy_read32(dev,
-			  B43legacy_MMIO_MACCMD)
-			  | (1 << 4));
+			  b43legacy_read32(dev, B43legacy_MMIO_MACCMD)
+			  | B43legacy_MACCMD_BGNOISE);
 	B43legacy_WARN_ON(dev->noisecalc.channel_at_start !=
 			    dev->phy.channel);
 }
@@ -888,18 +895,18 @@ static void handle_irq_tbtt_indication(struct b43legacy_wldev *dev)
 		if (1/*FIXME: the last PSpoll frame was sent successfully */)
 			b43legacy_power_saving_ctl_bits(dev, -1, -1);
 	}
-	dev->reg124_set_0x4 = 0;
 	if (b43legacy_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS))
-		dev->reg124_set_0x4 = 1;
+		dev->dfq_valid = 1;
 }
 
 static void handle_irq_atim_end(struct b43legacy_wldev *dev)
 {
-	if (!dev->reg124_set_0x4) /*FIXME rename this variable*/
-		return;
-	b43legacy_write32(dev, B43legacy_MMIO_MACCMD,
-			  b43legacy_read32(dev, B43legacy_MMIO_MACCMD)
-			  | 0x4);
+	if (dev->dfq_valid) {
+		b43legacy_write32(dev, B43legacy_MMIO_MACCMD,
+				  b43legacy_read32(dev, B43legacy_MMIO_MACCMD)
+				  | B43legacy_MACCMD_DFQ_VALID);
+		dev->dfq_valid = 0;
+	}
 }
 
 static void handle_irq_pmq(struct b43legacy_wldev *dev)
@@ -955,32 +962,77 @@ static void b43legacy_write_beacon_template(struct b43legacy_wldev *dev,
 					    u16 ram_offset,
 					    u16 shm_size_offset, u8 rate)
 {
-	int len;
-	const u8 *data;
 
-	B43legacy_WARN_ON(!dev->cached_beacon);
-	len = min((size_t)dev->cached_beacon->len,
+	unsigned int i, len, variable_len;
+	const struct ieee80211_mgmt *bcn;
+	const u8 *ie;
+	bool tim_found = 0;
+
+	bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data);
+	len = min((size_t)dev->wl->current_beacon->len,
 		  0x200 - sizeof(struct b43legacy_plcp_hdr6));
-	data = (const u8 *)(dev->cached_beacon->data);
-	b43legacy_write_template_common(dev, data,
-					len, ram_offset,
+
+	b43legacy_write_template_common(dev, (const u8 *)bcn, len, ram_offset,
 					shm_size_offset, rate);
+
+	/* Find the position of the TIM and the DTIM_period value
+	 * and write them to SHM. */
+	ie = bcn->u.beacon.variable;
+	variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
+	for (i = 0; i < variable_len - 2; ) {
+		uint8_t ie_id, ie_len;
+
+		ie_id = ie[i];
+		ie_len = ie[i + 1];
+		if (ie_id == 5) {
+			u16 tim_position;
+			u16 dtim_period;
+			/* This is the TIM Information Element */
+
+			/* Check whether the ie_len is in the beacon data range. */
+			if (variable_len < ie_len + 2 + i)
+				break;
+			/* A valid TIM is at least 4 bytes long. */
+			if (ie_len < 4)
+				break;
+			tim_found = 1;
+
+			tim_position = sizeof(struct b43legacy_plcp_hdr6);
+			tim_position += offsetof(struct ieee80211_mgmt,
+						 u.beacon.variable);
+			tim_position += i;
+
+			dtim_period = ie[i + 3];
+
+			b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
+					B43legacy_SHM_SH_TIMPOS, tim_position);
+			b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
+					B43legacy_SHM_SH_DTIMP, dtim_period);
+			break;
+		}
+		i += ie_len + 2;
+	}
+	if (!tim_found) {
+		b43legacywarn(dev->wl, "Did not find a valid TIM IE in the "
+			      "beacon template packet. AP or IBSS operation "
+			      "may be broken.\n");
+	}
 }
 
 static void b43legacy_write_probe_resp_plcp(struct b43legacy_wldev *dev,
 					    u16 shm_offset, u16 size,
-					    u8 rate)
+					    struct ieee80211_rate *rate)
 {
 	struct b43legacy_plcp_hdr4 plcp;
 	u32 tmp;
 	__le16 dur;
 
 	plcp.data = 0;
-	b43legacy_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
+	b43legacy_generate_plcp_hdr(&plcp, size + FCS_LEN, rate->bitrate);
 	dur = ieee80211_generic_frame_duration(dev->wl->hw,
 					       dev->wl->vif,
 					       size,
-					       B43legacy_RATE_TO_100KBPS(rate));
+					       rate);
 	/* Write PLCP in two parts and timing for packet transfer */
 	tmp = le32_to_cpu(plcp.data);
 	b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_offset,
@@ -997,45 +1049,44 @@ static void b43legacy_write_probe_resp_plcp(struct b43legacy_wldev *dev,
  * 2) Patching duration field
  * 3) Stripping TIM
  */
-static u8 *b43legacy_generate_probe_resp(struct b43legacy_wldev *dev,
-					 u16 *dest_size, u8 rate)
+static const u8 *b43legacy_generate_probe_resp(struct b43legacy_wldev *dev,
+					       u16 *dest_size,
+					       struct ieee80211_rate *rate)
 {
 	const u8 *src_data;
 	u8 *dest_data;
-	u16 src_size;
-	u16 elem_size;
-	u16 src_pos;
-	u16 dest_pos;
+	u16 src_size, elem_size, src_pos, dest_pos;
 	__le16 dur;
 	struct ieee80211_hdr *hdr;
+	size_t ie_start;
+
+	src_size = dev->wl->current_beacon->len;
+	src_data = (const u8 *)dev->wl->current_beacon->data;
 
-	B43legacy_WARN_ON(!dev->cached_beacon);
-	src_size = dev->cached_beacon->len;
-	src_data = (const u8 *)dev->cached_beacon->data;
+	/* Get the start offset of the variable IEs in the packet. */
+	ie_start = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
+	B43legacy_WARN_ON(ie_start != offsetof(struct ieee80211_mgmt,
+					       u.beacon.variable));
 
-	if (unlikely(src_size < 0x24)) {
-		b43legacydbg(dev->wl, "b43legacy_generate_probe_resp: "
-		       "invalid beacon\n");
+	if (B43legacy_WARN_ON(src_size < ie_start))
 		return NULL;
-	}
 
 	dest_data = kmalloc(src_size, GFP_ATOMIC);
 	if (unlikely(!dest_data))
 		return NULL;
 
-	/* 0x24 is offset of first variable-len Information-Element
-	 * in beacon frame.
-	 */
-	memcpy(dest_data, src_data, 0x24);
-	src_pos = 0x24;
-	dest_pos = 0x24;
-	for (; src_pos < src_size - 2; src_pos += elem_size) {
+	/* Copy the static data and all Information Elements, except the TIM. */
+	memcpy(dest_data, src_data, ie_start);
+	src_pos = ie_start;
+	dest_pos = ie_start;
+	for ( ; src_pos < src_size - 2; src_pos += elem_size) {
 		elem_size = src_data[src_pos + 1] + 2;
-		if (src_data[src_pos] != 0x05) { /* TIM */
-			memcpy(dest_data + dest_pos, src_data + src_pos,
-			       elem_size);
-			dest_pos += elem_size;
+		if (src_data[src_pos] == 5) {
+			/* This is the TIM. */
+			continue;
 		}
+		memcpy(dest_data + dest_pos, src_data + src_pos, elem_size);
+		dest_pos += elem_size;
 	}
 	*dest_size = dest_pos;
 	hdr = (struct ieee80211_hdr *)dest_data;
@@ -1046,7 +1097,7 @@ static u8 *b43legacy_generate_probe_resp(struct b43legacy_wldev *dev,
 	dur = ieee80211_generic_frame_duration(dev->wl->hw,
 					       dev->wl->vif,
 					       *dest_size,
-					       B43legacy_RATE_TO_100KBPS(rate));
+					       rate);
 	hdr->duration_id = dur;
 
 	return dest_data;
@@ -1054,13 +1105,13 @@ static u8 *b43legacy_generate_probe_resp(struct b43legacy_wldev *dev,
 
 static void b43legacy_write_probe_resp_template(struct b43legacy_wldev *dev,
 						u16 ram_offset,
-						u16 shm_size_offset, u8 rate)
+						u16 shm_size_offset,
+						struct ieee80211_rate *rate)
 {
-	u8 *probe_resp_data;
+	const u8 *probe_resp_data;
 	u16 size;
 
-	B43legacy_WARN_ON(!dev->cached_beacon);
-	size = dev->cached_beacon->len;
+	size = dev->wl->current_beacon->len;
 	probe_resp_data = b43legacy_generate_probe_resp(dev, &size, rate);
 	if (unlikely(!probe_resp_data))
 		return;
@@ -1069,59 +1120,37 @@ static void b43legacy_write_probe_resp_template(struct b43legacy_wldev *dev,
 	 * all possible basic rates
 	 */
 	b43legacy_write_probe_resp_plcp(dev, 0x31A, size,
-					B43legacy_CCK_RATE_1MB);
+					&b43legacy_b_ratetable[0]);
 	b43legacy_write_probe_resp_plcp(dev, 0x32C, size,
-					B43legacy_CCK_RATE_2MB);
+					&b43legacy_b_ratetable[1]);
 	b43legacy_write_probe_resp_plcp(dev, 0x33E, size,
-					B43legacy_CCK_RATE_5MB);
+					&b43legacy_b_ratetable[2]);
 	b43legacy_write_probe_resp_plcp(dev, 0x350, size,
-					B43legacy_CCK_RATE_11MB);
+					&b43legacy_b_ratetable[3]);
 
 	size = min((size_t)size,
 		   0x200 - sizeof(struct b43legacy_plcp_hdr6));
 	b43legacy_write_template_common(dev, probe_resp_data,
 					size, ram_offset,
-					shm_size_offset, rate);
+					shm_size_offset, rate->bitrate);
 	kfree(probe_resp_data);
 }
 
-static int b43legacy_refresh_cached_beacon(struct b43legacy_wldev *dev,
-					   struct sk_buff *beacon)
-{
-	if (dev->cached_beacon)
-		kfree_skb(dev->cached_beacon);
-	dev->cached_beacon = beacon;
-
-	return 0;
-}
-
-static void b43legacy_update_templates(struct b43legacy_wldev *dev)
-{
-	u32 status;
-
-	B43legacy_WARN_ON(!dev->cached_beacon);
-
-	b43legacy_write_beacon_template(dev, 0x68, 0x18,
-					B43legacy_CCK_RATE_1MB);
-	b43legacy_write_beacon_template(dev, 0x468, 0x1A,
-					B43legacy_CCK_RATE_1MB);
-	b43legacy_write_probe_resp_template(dev, 0x268, 0x4A,
-					    B43legacy_CCK_RATE_11MB);
-
-	status = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
-	status |= 0x03;
-	b43legacy_write32(dev, B43legacy_MMIO_MACCMD, status);
-}
-
-static void b43legacy_refresh_templates(struct b43legacy_wldev *dev,
-					struct sk_buff *beacon)
+/* Asynchronously update the packet templates in template RAM.
+ * Locking: Requires wl->irq_lock to be locked. */
+static void b43legacy_update_templates(struct b43legacy_wl *wl,
+				       struct sk_buff *beacon)
 {
-	int err;
+	/* This is the top half of the ansynchronous beacon update. The bottom
+	 * half is the beacon IRQ. Beacon update must be asynchronous to avoid
+	 * sending an invalid beacon. This can happen for example, if the
+	 * firmware transmits a beacon while we are updating it. */
 
-	err = b43legacy_refresh_cached_beacon(dev, beacon);
-	if (unlikely(err))
-		return;
-	b43legacy_update_templates(dev);
+	if (wl->current_beacon)
+		dev_kfree_skb_any(wl->current_beacon);
+	wl->current_beacon = beacon;
+	wl->beacon0_uploaded = 0;
+	wl->beacon1_uploaded = 0;
 }
 
 static void b43legacy_set_ssid(struct b43legacy_wldev *dev,
@@ -1162,38 +1191,37 @@ static void b43legacy_set_beacon_int(struct b43legacy_wldev *dev,
 
 static void handle_irq_beacon(struct b43legacy_wldev *dev)
 {
-	u32 status;
+	struct b43legacy_wl *wl = dev->wl;
+	u32 cmd;
 
-	if (!b43legacy_is_mode(dev->wl, IEEE80211_IF_TYPE_AP))
+	if (!b43legacy_is_mode(wl, IEEE80211_IF_TYPE_AP))
 		return;
 
-	dev->irq_savedstate &= ~B43legacy_IRQ_BEACON;
-	status = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
-
-	if (!dev->cached_beacon || ((status & 0x1) && (status & 0x2))) {
-		/* ACK beacon IRQ. */
-		b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON,
-				  B43legacy_IRQ_BEACON);
-		dev->irq_savedstate |= B43legacy_IRQ_BEACON;
-		if (dev->cached_beacon)
-			kfree_skb(dev->cached_beacon);
-		dev->cached_beacon = NULL;
-		return;
-	}
-	if (!(status & 0x1)) {
-		b43legacy_write_beacon_template(dev, 0x68, 0x18,
-						B43legacy_CCK_RATE_1MB);
-		status |= 0x1;
-		b43legacy_write32(dev, B43legacy_MMIO_MACCMD,
-				  status);
-	}
-	if (!(status & 0x2)) {
-		b43legacy_write_beacon_template(dev, 0x468, 0x1A,
-						B43legacy_CCK_RATE_1MB);
-		status |= 0x2;
-		b43legacy_write32(dev, B43legacy_MMIO_MACCMD,
-				  status);
+	/* This is the bottom half of the asynchronous beacon update. */
+
+	cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
+	if (!(cmd & B43legacy_MACCMD_BEACON0_VALID)) {
+		if (!wl->beacon0_uploaded) {
+			b43legacy_write_beacon_template(dev, 0x68,
+							B43legacy_SHM_SH_BTL0,
+							B43legacy_CCK_RATE_1MB);
+			b43legacy_write_probe_resp_template(dev, 0x268,
+							    B43legacy_SHM_SH_PRTLEN,
+							    &__b43legacy_ratetable[3]);
+			wl->beacon0_uploaded = 1;
+		}
+		cmd |= B43legacy_MACCMD_BEACON0_VALID;
+	}
+	if (!(cmd & B43legacy_MACCMD_BEACON1_VALID)) {
+		if (!wl->beacon1_uploaded) {
+			b43legacy_write_beacon_template(dev, 0x468,
+							B43legacy_SHM_SH_BTL1,
+							B43legacy_CCK_RATE_1MB);
+			wl->beacon1_uploaded = 1;
+		}
+		cmd |= B43legacy_MACCMD_BEACON1_VALID;
 	}
+	b43legacy_write32(dev, B43legacy_MMIO_MACCMD, cmd);
 }
 
 static void handle_irq_ucode_debug(struct b43legacy_wldev *dev)
@@ -2550,14 +2578,16 @@ static int b43legacy_op_dev_config(struct ieee80211_hw *hw,
 	antenna_rx = b43legacy_antenna_from_ieee80211(conf->antenna_sel_rx);
 
 	mutex_lock(&wl->mutex);
+	dev = wl->current_dev;
+	phy = &dev->phy;
 
 	/* Switch the PHY mode (if necessary). */
-	switch (conf->phymode) {
-	case MODE_IEEE80211B:
-		new_phymode = B43legacy_PHYMODE_B;
-		break;
-	case MODE_IEEE80211G:
-		new_phymode = B43legacy_PHYMODE_G;
+	switch (conf->channel->band) {
+	case IEEE80211_BAND_2GHZ:
+		if (phy->type == B43legacy_PHYTYPE_B)
+			new_phymode = B43legacy_PHYMODE_B;
+		else
+			new_phymode = B43legacy_PHYMODE_G;
 		break;
 	default:
 		B43legacy_WARN_ON(1);
@@ -2565,8 +2595,6 @@ static int b43legacy_op_dev_config(struct ieee80211_hw *hw,
 	err = b43legacy_switch_phymode(wl, new_phymode);
 	if (err)
 		goto out_unlock_mutex;
-	dev = wl->current_dev;
-	phy = &dev->phy;
 
 	/* Disable IRQs while reconfiguring the device.
 	 * This makes it possible to drop the spinlock throughout
@@ -2582,8 +2610,8 @@ static int b43legacy_op_dev_config(struct ieee80211_hw *hw,
 
 	/* Switch to the requested channel.
 	 * The firmware takes care of races with the TX handler. */
-	if (conf->channel_val != phy->channel)
-		b43legacy_radio_selectchannel(dev, conf->channel_val, 0);
+	if (conf->channel->hw_value != phy->channel)
+		b43legacy_radio_selectchannel(dev, conf->channel->hw_value, 0);
 
 	/* Enable/Disable ShortSlot timing. */
 	if ((!!(conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME))
@@ -2700,7 +2728,7 @@ static int b43legacy_op_config_interface(struct ieee80211_hw *hw,
 			B43legacy_WARN_ON(conf->type != IEEE80211_IF_TYPE_AP);
 			b43legacy_set_ssid(dev, conf->ssid, conf->ssid_len);
 			if (conf->beacon)
-				b43legacy_refresh_templates(dev, conf->beacon);
+				b43legacy_update_templates(wl, conf->beacon);
 		}
 		b43legacy_write_mac_bssid_templates(dev);
 	}
@@ -2918,7 +2946,7 @@ static void setup_struct_phy_for_init(struct b43legacy_wldev *dev,
 static void setup_struct_wldev_for_init(struct b43legacy_wldev *dev)
 {
 	/* Flags */
-	dev->reg124_set_0x4 = 0;
+	dev->dfq_valid = 0;
 
 	/* Stats */
 	memset(&dev->stats, 0, sizeof(dev->stats));
@@ -3013,6 +3041,11 @@ static void b43legacy_wireless_core_exit(struct b43legacy_wldev *dev)
 		kfree(phy->tssi2dbm);
 	kfree(phy->lo_control);
 	phy->lo_control = NULL;
+	if (dev->wl->current_beacon) {
+		dev_kfree_skb_any(dev->wl->current_beacon);
+		dev->wl->current_beacon = NULL;
+	}
+
 	ssb_device_disable(dev->dev, 0);
 	ssb_bus_may_powerdown(dev->dev->bus);
 }
@@ -3337,6 +3370,41 @@ out_unlock:
 	return err;
 }
 
+static int b43legacy_op_beacon_set_tim(struct ieee80211_hw *hw,
+				       int aid, int set)
+{
+	struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
+	struct sk_buff *beacon;
+	unsigned long flags;
+
+	/* We could modify the existing beacon and set the aid bit in the TIM
+	 * field, but that would probably require resizing and moving of data
+	 * within the beacon template. Simply request a new beacon and let
+	 * mac80211 do the hard work. */
+	beacon = ieee80211_beacon_get(hw, wl->vif, NULL);
+	if (unlikely(!beacon))
+		return -ENOMEM;
+	spin_lock_irqsave(&wl->irq_lock, flags);
+	b43legacy_update_templates(wl, beacon);
+	spin_unlock_irqrestore(&wl->irq_lock, flags);
+
+	return 0;
+}
+
+static int b43legacy_op_ibss_beacon_update(struct ieee80211_hw *hw,
+					   struct sk_buff *beacon,
+					   struct ieee80211_tx_control *ctl)
+{
+	struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
+	unsigned long flags;
+
+	spin_lock_irqsave(&wl->irq_lock, flags);
+	b43legacy_update_templates(wl, beacon);
+	spin_unlock_irqrestore(&wl->irq_lock, flags);
+
+	return 0;
+}
+
 static const struct ieee80211_ops b43legacy_hw_ops = {
 	.tx			= b43legacy_op_tx,
 	.conf_tx		= b43legacy_op_conf_tx,
@@ -3350,6 +3418,8 @@ static const struct ieee80211_ops b43legacy_hw_ops = {
 	.start			= b43legacy_op_start,
 	.stop			= b43legacy_op_stop,
 	.set_retry_limit	= b43legacy_op_set_retry_limit,
+	.set_tim		= b43legacy_op_beacon_set_tim,
+	.beacon_update		= b43legacy_op_ibss_beacon_update,
 };
 
 /* Hard-reset the chip. Do not call this directly.
@@ -3398,48 +3468,19 @@ static int b43legacy_setup_modes(struct b43legacy_wldev *dev,
 				 int have_gphy)
 {
 	struct ieee80211_hw *hw = dev->wl->hw;
-	struct ieee80211_hw_mode *mode;
 	struct b43legacy_phy *phy = &dev->phy;
-	int cnt = 0;
-	int err;
 
 	phy->possible_phymodes = 0;
-	for (; 1; cnt++) {
-		if (have_bphy) {
-			B43legacy_WARN_ON(cnt >= B43legacy_MAX_PHYHWMODES);
-			mode = &phy->hwmodes[cnt];
-
-			mode->mode = MODE_IEEE80211B;
-			mode->num_channels = b43legacy_bg_chantable_size;
-			mode->channels = b43legacy_bg_chantable;
-			mode->num_rates = b43legacy_b_ratetable_size;
-			mode->rates = b43legacy_b_ratetable;
-			err = ieee80211_register_hwmode(hw, mode);
-			if (err)
-				return err;
-
-			phy->possible_phymodes |= B43legacy_PHYMODE_B;
-			have_bphy = 0;
-			continue;
-		}
-		if (have_gphy) {
-			B43legacy_WARN_ON(cnt >= B43legacy_MAX_PHYHWMODES);
-			mode = &phy->hwmodes[cnt];
-
-			mode->mode = MODE_IEEE80211G;
-			mode->num_channels = b43legacy_bg_chantable_size;
-			mode->channels = b43legacy_bg_chantable;
-			mode->num_rates = b43legacy_g_ratetable_size;
-			mode->rates = b43legacy_g_ratetable;
-			err = ieee80211_register_hwmode(hw, mode);
-			if (err)
-				return err;
-
-			phy->possible_phymodes |= B43legacy_PHYMODE_G;
-			have_gphy = 0;
-			continue;
-		}
-		break;
+	if (have_bphy) {
+		hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
+			&b43legacy_band_2GHz_BPHY;
+		phy->possible_phymodes |= B43legacy_PHYMODE_B;
+	}
+
+	if (have_gphy) {
+		hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
+			&b43legacy_band_2GHz_GPHY;
+		phy->possible_phymodes |= B43legacy_PHYMODE_G;
 	}
 
 	return 0;
diff --git a/drivers/net/wireless/b43legacy/xmit.c b/drivers/net/wireless/b43legacy/xmit.c
index d84408a82db..dcad2491a60 100644
--- a/drivers/net/wireless/b43legacy/xmit.c
+++ b/drivers/net/wireless/b43legacy/xmit.c
@@ -37,45 +37,48 @@
 
 
 /* Extract the bitrate out of a CCK PLCP header. */
-static u8 b43legacy_plcp_get_bitrate_cck(struct b43legacy_plcp_hdr6 *plcp)
+static u8 b43legacy_plcp_get_bitrate_idx_cck(struct b43legacy_plcp_hdr6 *plcp)
 {
 	switch (plcp->raw[0]) {
 	case 0x0A:
-		return B43legacy_CCK_RATE_1MB;
+		return 0;
 	case 0x14:
-		return B43legacy_CCK_RATE_2MB;
+		return 1;
 	case 0x37:
-		return B43legacy_CCK_RATE_5MB;
+		return 2;
 	case 0x6E:
-		return B43legacy_CCK_RATE_11MB;
+		return 3;
 	}
 	B43legacy_BUG_ON(1);
-	return 0;
+	return -1;
 }
 
 /* Extract the bitrate out of an OFDM PLCP header. */
-static u8 b43legacy_plcp_get_bitrate_ofdm(struct b43legacy_plcp_hdr6 *plcp)
+static u8 b43legacy_plcp_get_bitrate_idx_ofdm(struct b43legacy_plcp_hdr6 *plcp,
+					      bool aphy)
 {
+	int base = aphy ? 0 : 4;
+
 	switch (plcp->raw[0] & 0xF) {
 	case 0xB:
-		return B43legacy_OFDM_RATE_6MB;
+		return base + 0;
 	case 0xF:
-		return B43legacy_OFDM_RATE_9MB;
+		return base + 1;
 	case 0xA:
-		return B43legacy_OFDM_RATE_12MB;
+		return base + 2;
 	case 0xE:
-		return B43legacy_OFDM_RATE_18MB;
+		return base + 3;
 	case 0x9:
-		return B43legacy_OFDM_RATE_24MB;
+		return base + 4;
 	case 0xD:
-		return B43legacy_OFDM_RATE_36MB;
+		return base + 5;
 	case 0x8:
-		return B43legacy_OFDM_RATE_48MB;
+		return base + 6;
 	case 0xC:
-		return B43legacy_OFDM_RATE_54MB;
+		return base + 7;
 	}
 	B43legacy_BUG_ON(1);
-	return 0;
+	return -1;
 }
 
 u8 b43legacy_plcp_get_ratecode_cck(const u8 bitrate)
@@ -192,7 +195,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
 	int use_encryption = (!(txctl->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT));
 	u16 fctl;
 	u8 rate;
-	u8 rate_fb;
+	struct ieee80211_rate *rate_fb;
 	int rate_ofdm;
 	int rate_fb_ofdm;
 	unsigned int plcp_fragment_len;
@@ -204,16 +207,16 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
 
 	memset(txhdr, 0, sizeof(*txhdr));
 
-	rate = txctl->tx_rate;
+	rate = txctl->tx_rate->hw_value;
 	rate_ofdm = b43legacy_is_ofdm_rate(rate);
-	rate_fb = (txctl->alt_retry_rate == -1) ? rate : txctl->alt_retry_rate;
-	rate_fb_ofdm = b43legacy_is_ofdm_rate(rate_fb);
+	rate_fb = txctl->alt_retry_rate ? : txctl->tx_rate;
+	rate_fb_ofdm = b43legacy_is_ofdm_rate(rate_fb->hw_value);
 
 	txhdr->mac_frame_ctl = wlhdr->frame_control;
 	memcpy(txhdr->tx_receiver, wlhdr->addr1, 6);
 
 	/* Calculate duration for fallback rate */
-	if ((rate_fb == rate) ||
+	if ((rate_fb->hw_value == rate) ||
 	    (wlhdr->duration_id & cpu_to_le16(0x8000)) ||
 	    (wlhdr->duration_id == cpu_to_le16(0))) {
 		/* If the fallback rate equals the normal rate or the
@@ -221,11 +224,10 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
 		 * use the original dur_id field. */
 		txhdr->dur_fb = wlhdr->duration_id;
 	} else {
-		int fbrate_base100kbps = B43legacy_RATE_TO_100KBPS(rate_fb);
 		txhdr->dur_fb = ieee80211_generic_frame_duration(dev->wl->hw,
 							 txctl->vif,
 							 fragment_len,
-							 fbrate_base100kbps);
+							 rate_fb);
 	}
 
 	plcp_fragment_len = fragment_len + FCS_LEN;
@@ -266,7 +268,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
 				    rate);
 	b43legacy_generate_plcp_hdr((struct b43legacy_plcp_hdr4 *)
 				    (&txhdr->plcp_fb), plcp_fragment_len,
-				    rate_fb);
+				    rate_fb->hw_value);
 
 	/* PHY TX Control word */
 	if (rate_ofdm)
@@ -310,7 +312,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
 		int rts_rate_ofdm;
 		int rts_rate_fb_ofdm;
 
-		rts_rate = txctl->rts_cts_rate;
+		rts_rate = txctl->rts_cts_rate->hw_value;
 		rts_rate_ofdm = b43legacy_is_ofdm_rate(rts_rate);
 		rts_rate_fb = b43legacy_calc_fallback_rate(rts_rate);
 		rts_rate_fb_ofdm = b43legacy_is_ofdm_rate(rts_rate_fb);
@@ -536,19 +538,24 @@ void b43legacy_rx(struct b43legacy_wldev *dev,
 				      (phystat3 & B43legacy_RX_PHYST3_TRSTATE));
 	status.noise = dev->stats.link_noise;
 	status.signal = (jssi * 100) / B43legacy_RX_MAX_SSI;
+	/* change to support A PHY */
 	if (phystat0 & B43legacy_RX_PHYST0_OFDM)
-		status.rate = b43legacy_plcp_get_bitrate_ofdm(plcp);
+		status.rate_idx = b43legacy_plcp_get_bitrate_idx_ofdm(plcp, false);
 	else
-		status.rate = b43legacy_plcp_get_bitrate_cck(plcp);
+		status.rate_idx = b43legacy_plcp_get_bitrate_idx_cck(plcp);
 	status.antenna = !!(phystat0 & B43legacy_RX_PHYST0_ANT);
 
 	/*
-	 * If monitors are present get full 64-bit timestamp. This
-	 * code assumes we get to process the packet within 16 bits
-	 * of timestamp, i.e. about 65 milliseconds after the PHY
-	 * received the first symbol.
+	 * All frames on monitor interfaces and beacons always need a full
+	 * 64-bit timestamp. Monitor interfaces need it for diagnostic
+	 * purposes and beacons for IBSS merging.
+	 * This code assumes we get to process the packet within 16 bits
+	 * of timestamp, i.e. about 65 milliseconds after the PHY received
+	 * the first symbol.
 	 */
-	if (dev->wl->radiotap_enabled) {
+	if (((fctl & (IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE))
+	    == (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON)) ||
+	    dev->wl->radiotap_enabled) {
 		u16 low_mactime_now;
 
 		b43legacy_tsf_read(dev, &status.mactime);
@@ -564,14 +571,9 @@ void b43legacy_rx(struct b43legacy_wldev *dev,
 		  B43legacy_RX_CHAN_ID_SHIFT;
 	switch (chanstat & B43legacy_RX_CHAN_PHYTYPE) {
 	case B43legacy_PHYTYPE_B:
-		status.phymode = MODE_IEEE80211B;
-		status.freq = chanid + 2400;
-		status.channel = b43legacy_freq_to_channel_bg(chanid + 2400);
-		break;
 	case B43legacy_PHYTYPE_G:
-		status.phymode = MODE_IEEE80211G;
+		status.band = IEEE80211_BAND_2GHZ;
 		status.freq = chanid + 2400;
-		status.channel = b43legacy_freq_to_channel_bg(chanid + 2400);
 		break;
 	default:
 		b43legacywarn(dev->wl, "Unexpected value for chanstat (0x%X)\n",