diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index fc28015..f9c8161 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -173,6 +173,11 @@
 #define B43_SHM_SH_CHAN			0x00A0	/* Current channel (low 8bit only) */
 #define  B43_SHM_SH_CHAN_5GHZ		0x0100	/* Bit set, if 5Ghz channel */
 #define B43_SHM_SH_BCMCFIFOID		0x0108	/* Last posted cookie to the bcast/mcast FIFO */
+/* TSSI information */
+#define B43_SHM_SH_TSSI_CCK		0x0058	/* TSSI for last 4 CCK frames (32bit) */
+#define B43_SHM_SH_TSSI_OFDM_A		0x0068	/* TSSI for last 4 OFDM frames (32bit) */
+#define B43_SHM_SH_TSSI_OFDM_G		0x0070	/* TSSI for last 4 OFDM frames (32bit) */
+#define  B43_TSSI_MAX			0x7F	/* Max value for one TSSI value */
 /* SHM_SHARED TX FIFO variables */
 #define B43_SHM_SH_SIZE01		0x0098	/* TX FIFO size for FIFO 0 (low) and 1 (high) */
 #define B43_SHM_SH_SIZE23		0x009A	/* TX FIFO size for FIFO 2 and 3 */
@@ -648,6 +653,11 @@
 	struct b43_qos_params qos_params[4];
 	/* Workqueue for updating QOS parameters in hardware. */
 	struct work_struct qos_update_work;
+
+	/* Work for adjustment of the transmission power.
+	 * This is scheduled when we determine that the actual TX output
+	 * power doesn't match what we want. */
+	struct work_struct txpower_adjust_work;
 };
 
 /* In-memory representation of a cached microcode file. */
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index af43f03..63bafc2 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -2805,6 +2805,9 @@
 
 	if (ops->pwork_60sec)
 		ops->pwork_60sec(dev);
+
+	/* Force check the TX power emission now. */
+	b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME);
 }
 
 static void b43_periodic_every30sec(struct b43_wldev *dev)
@@ -2835,8 +2838,6 @@
 	if (phy->ops->pwork_15sec)
 		phy->ops->pwork_15sec(dev);
 
-	phy->ops->xmitpower(dev);
-
 	atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
 	wmb();
 }
@@ -3382,10 +3383,13 @@
 
 	/* Adjust the desired TX power level. */
 	if (conf->power_level != 0) {
-		if (conf->power_level != phy->power_level) {
-			phy->power_level = conf->power_level;
-			phy->ops->xmitpower(dev);
+		spin_lock_irqsave(&wl->irq_lock, flags);
+		if (conf->power_level != phy->desired_txpower) {
+			phy->desired_txpower = conf->power_level;
+			b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME |
+						   B43_TXPWR_IGNORE_TSSI);
 		}
+		spin_unlock_irqrestore(&wl->irq_lock, flags);
 	}
 
 	/* Antennas for RX and management frame TX. */
@@ -3785,6 +3789,7 @@
 				      struct b43_phy *phy)
 {
 	phy->hardware_power_control = !!modparam_hwpctl;
+	phy->next_txpwr_check_time = jiffies;
 	/* PHY TX errors counter. */
 	atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
 }
@@ -4204,6 +4209,8 @@
 		b43_wireless_core_stop(dev);
 	b43_wireless_core_exit(dev);
 	mutex_unlock(&wl->mutex);
+
+	cancel_work_sync(&(wl->txpower_adjust_work));
 }
 
 static int b43_op_set_retry_limit(struct ieee80211_hw *hw,
@@ -4581,6 +4588,7 @@
 	INIT_LIST_HEAD(&wl->devlist);
 	INIT_WORK(&wl->qos_update_work, b43_qos_update_work);
 	INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work);
+	INIT_WORK(&wl->txpower_adjust_work, b43_phy_txpower_adjust_work);
 
 	ssb_set_devtypedata(dev, wl);
 	b43info(wl, "Broadcom %04X WLAN found\n", dev->bus->chip_id);
diff --git a/drivers/net/wireless/b43/nphy.c b/drivers/net/wireless/b43/nphy.c
index 831986c..4cfeab8 100644
--- a/drivers/net/wireless/b43/nphy.c
+++ b/drivers/net/wireless/b43/nphy.c
@@ -34,10 +34,16 @@
 {//TODO
 }
 
-void b43_nphy_xmitpower(struct b43_wldev *dev)
+static void b43_nphy_op_adjust_txpower(struct b43_wldev *dev)
 {//TODO
 }
 
+static enum b43_txpwr_result b43_nphy_op_recalc_txpower(struct b43_wldev *dev,
+							bool ignore_tssi)
+{//TODO
+	return B43_TXPWR_RES_DONE;
+}
+
 static void b43_chantab_radio_upload(struct b43_wldev *dev,
 				     const struct b43_nphy_channeltab_entry *e)
 {
@@ -602,10 +608,6 @@
 	return 36;
 }
 
-static void b43_nphy_op_xmitpower(struct b43_wldev *dev)
-{//TODO
-}
-
 const struct b43_phy_operations b43_phyops_n = {
 	.allocate		= b43_nphy_op_allocate,
 	.init			= b43_nphy_op_init,
@@ -617,5 +619,6 @@
 	.software_rfkill	= b43_nphy_op_software_rfkill,
 	.switch_channel		= b43_nphy_op_switch_channel,
 	.get_default_chan	= b43_nphy_op_get_default_chan,
-	.xmitpower		= b43_nphy_op_xmitpower,
+	.recalc_txpower		= b43_nphy_op_recalc_txpower,
+	.adjust_txpower		= b43_nphy_op_adjust_txpower,
 };
diff --git a/drivers/net/wireless/b43/phy_a.c b/drivers/net/wireless/b43/phy_a.c
index dd34731..4d7d59e 100644
--- a/drivers/net/wireless/b43/phy_a.c
+++ b/drivers/net/wireless/b43/phy_a.c
@@ -505,10 +505,16 @@
 	b43_hf_write(dev, hf);
 }
 
-static void b43_aphy_op_xmitpower(struct b43_wldev *dev)
+static void b43_aphy_op_adjust_txpower(struct b43_wldev *dev)
 {//TODO
 }
 
+static enum b43_txpwr_result b43_aphy_op_recalc_txpower(struct b43_wldev *dev,
+							bool ignore_tssi)
+{//TODO
+	return B43_TXPWR_RES_DONE;
+}
+
 static void b43_aphy_op_pwork_15sec(struct b43_wldev *dev)
 {//TODO
 }
@@ -530,7 +536,8 @@
 	.switch_channel		= b43_aphy_op_switch_channel,
 	.get_default_chan	= b43_aphy_op_get_default_chan,
 	.set_rx_antenna		= b43_aphy_op_set_rx_antenna,
-	.xmitpower		= b43_aphy_op_xmitpower,
+	.recalc_txpower		= b43_aphy_op_recalc_txpower,
+	.adjust_txpower		= b43_aphy_op_adjust_txpower,
 	.pwork_15sec		= b43_aphy_op_pwork_15sec,
 	.pwork_60sec		= b43_aphy_op_pwork_60sec,
 };
diff --git a/drivers/net/wireless/b43/phy_common.c b/drivers/net/wireless/b43/phy_common.c
index 45074c0..5a550a7 100644
--- a/drivers/net/wireless/b43/phy_common.c
+++ b/drivers/net/wireless/b43/phy_common.c
@@ -274,3 +274,94 @@
 	phy->ops->software_rfkill(dev, state);
 	phy->radio_on = (state == RFKILL_STATE_UNBLOCKED);
 }
+
+/**
+ * b43_phy_txpower_adjust_work - TX power workqueue.
+ *
+ * Workqueue for updating the TX power parameters in hardware.
+ */
+void b43_phy_txpower_adjust_work(struct work_struct *work)
+{
+	struct b43_wl *wl = container_of(work, struct b43_wl,
+					 txpower_adjust_work);
+	struct b43_wldev *dev;
+
+	mutex_lock(&wl->mutex);
+	dev = wl->current_dev;
+
+	if (likely(dev && (b43_status(dev) >= B43_STAT_STARTED)))
+		dev->phy.ops->adjust_txpower(dev);
+
+	mutex_unlock(&wl->mutex);
+}
+
+/* Called with wl->irq_lock locked */
+void b43_phy_txpower_check(struct b43_wldev *dev, unsigned int flags)
+{
+	struct b43_phy *phy = &dev->phy;
+	unsigned long now = jiffies;
+	enum b43_txpwr_result result;
+
+	if (!(flags & B43_TXPWR_IGNORE_TIME)) {
+		/* Check if it's time for a TXpower check. */
+		if (time_before(now, phy->next_txpwr_check_time))
+			return; /* Not yet */
+	}
+	/* The next check will be needed in two seconds, or later. */
+	phy->next_txpwr_check_time = round_jiffies(now + (HZ * 2));
+
+	if ((dev->dev->bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM) &&
+	    (dev->dev->bus->boardinfo.type == SSB_BOARD_BU4306))
+		return; /* No software txpower adjustment needed */
+
+	result = phy->ops->recalc_txpower(dev, !!(flags & B43_TXPWR_IGNORE_TSSI));
+	if (result == B43_TXPWR_RES_DONE)
+		return; /* We are done. */
+	B43_WARN_ON(result != B43_TXPWR_RES_NEED_ADJUST);
+	B43_WARN_ON(phy->ops->adjust_txpower == NULL);
+
+	/* We must adjust the transmission power in hardware.
+	 * Schedule b43_phy_txpower_adjust_work(). */
+	queue_work(dev->wl->hw->workqueue, &dev->wl->txpower_adjust_work);
+}
+
+int b43_phy_shm_tssi_read(struct b43_wldev *dev, u16 shm_offset)
+{
+	const bool is_ofdm = (shm_offset != B43_SHM_SH_TSSI_CCK);
+	unsigned int a, b, c, d;
+	unsigned int average;
+	u32 tmp;
+
+	tmp = b43_shm_read32(dev, B43_SHM_SHARED, shm_offset);
+	a = tmp & 0xFF;
+	b = (tmp >> 8) & 0xFF;
+	c = (tmp >> 16) & 0xFF;
+	d = (tmp >> 24) & 0xFF;
+	if (a == 0 || a == B43_TSSI_MAX ||
+	    b == 0 || b == B43_TSSI_MAX ||
+	    c == 0 || c == B43_TSSI_MAX ||
+	    d == 0 || d == B43_TSSI_MAX)
+		return -ENOENT;
+	/* The values are OK. Clear them. */
+	tmp = B43_TSSI_MAX | (B43_TSSI_MAX << 8) |
+	      (B43_TSSI_MAX << 16) | (B43_TSSI_MAX << 24);
+	b43_shm_write32(dev, B43_SHM_SHARED, shm_offset, tmp);
+
+	if (is_ofdm) {
+		a = (a + 32) & 0x3F;
+		b = (b + 32) & 0x3F;
+		c = (c + 32) & 0x3F;
+		d = (d + 32) & 0x3F;
+	}
+
+	/* Get the average of the values with 0.5 added to each value. */
+	average = (a + b + c + d + 2) / 4;
+	if (is_ofdm) {
+		/* Adjust for CCK-boost */
+		if (b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO)
+		    & B43_HF_CCKBOOST)
+			average = (average >= 13) ? (average - 13) : 0;
+	}
+
+	return average;
+}
diff --git a/drivers/net/wireless/b43/phy_common.h b/drivers/net/wireless/b43/phy_common.h
index 9b9635e..f8db9f4 100644
--- a/drivers/net/wireless/b43/phy_common.h
+++ b/drivers/net/wireless/b43/phy_common.h
@@ -61,6 +61,17 @@
 };
 
 /**
+ * enum b43_txpwr_result - Return value for the recalc_txpower PHY op.
+ *
+ * @B43_TXPWR_RES_NEED_ADJUST:	Values changed. Hardware adjustment is needed.
+ * @B43_TXPWR_RES_DONE:		No more work to do. Everything is done.
+ */
+enum b43_txpwr_result {
+	B43_TXPWR_RES_NEED_ADJUST,
+	B43_TXPWR_RES_DONE,
+};
+
+/**
  * struct b43_phy_operations - Function pointers for PHY ops.
  *
  * @prepare:		Prepare the PHY. This is called before @init.
@@ -96,8 +107,23 @@
  * @interf_mitigation:	Switch the Interference Mitigation mode.
  * 			Can be NULL, if not supported.
  *
- * @xmitpower:		FIXME REMOVEME
+ * @recalc_txpower:	Recalculate the transmission power parameters.
+ * 			This callback has to recalculate the TX power settings,
+ * 			but does not need to write them to the hardware, yet.
+ * 			Returns enum b43_txpwr_result to indicate whether the hardware
+ * 			needs to be adjusted.
+ * 			If B43_TXPWR_NEED_ADJUST is returned, @adjust_txpower
+ * 			will be called later.
+ * 			If the parameter "ignore_tssi" is true, the TSSI values should
+ * 			be ignored and a recalculation of the power settings should be
+ * 			done even if the TSSI values did not change.
+ * 			This callback is called with wl->irq_lock held and must not sleep.
  * 			Must not be NULL.
+ * @adjust_txpower:	Write the previously calculated TX power settings
+ * 			(from @recalc_txpower) to the hardware.
+ * 			This function may sleep.
+ * 			Can be NULL, if (and ONLY if) @recalc_txpower _always_
+ * 			returns B43_TXPWR_RES_DONE.
  *
  * @pwork_15sec:	Periodic work. Called every 15 seconds.
  * 			Can be NULL, if not required.
@@ -127,7 +153,9 @@
 				 enum b43_interference_mitigation new_mode);
 
 	/* Transmission power adjustment */
-	void (*xmitpower)(struct b43_wldev *dev);
+	enum b43_txpwr_result (*recalc_txpower)(struct b43_wldev *dev,
+						bool ignore_tssi);
+	void (*adjust_txpower)(struct b43_wldev *dev);
 
 	/* Misc */
 	void (*pwork_15sec)(struct b43_wldev *dev);
@@ -183,11 +211,15 @@
 
 	/* Desired TX power level (in dBm).
 	 * This is set by the user and adjusted in b43_phy_xmitpower(). */
-	u8 power_level;
+	int desired_txpower;
 
 	/* Hardware Power Control enabled? */
 	bool hardware_power_control;
 
+	/* The time (in absolute jiffies) when the next TX power output
+	 * check is needed. */
+	unsigned long next_txpwr_check_time;
+
 	/* current channel */
 	unsigned int channel;
 
@@ -309,4 +341,41 @@
  */
 void b43_software_rfkill(struct b43_wldev *dev, enum rfkill_state state);
 
+/**
+ * b43_phy_txpower_check - Check TX power output.
+ *
+ * Compare the current TX power output to the desired power emission
+ * and schedule an adjustment in case it mismatches.
+ * Requires wl->irq_lock locked.
+ *
+ * @flags:	OR'ed enum b43_phy_txpower_check_flags flags.
+ * 		See the docs below.
+ */
+void b43_phy_txpower_check(struct b43_wldev *dev, unsigned int flags);
+/**
+ * enum b43_phy_txpower_check_flags - Flags for b43_phy_txpower_check()
+ *
+ * @B43_TXPWR_IGNORE_TIME: Ignore the schedule time and force-redo
+ *                         the check now.
+ * @B43_TXPWR_IGNORE_TSSI: Redo the recalculation, even if the average
+ *                         TSSI did not change.
+ */
+enum b43_phy_txpower_check_flags {
+	B43_TXPWR_IGNORE_TIME		= (1 << 0),
+	B43_TXPWR_IGNORE_TSSI		= (1 << 1),
+};
+
+struct work_struct;
+void b43_phy_txpower_adjust_work(struct work_struct *work);
+
+/**
+ * b43_phy_shm_tssi_read - Read the average of the last 4 TSSI from SHM.
+ *
+ * @shm_offset:		The SHM address to read the values from.
+ *
+ * Returns the average of the 4 TSSI values, or a negative error code.
+ */
+int b43_phy_shm_tssi_read(struct b43_wldev *dev, u16 shm_offset);
+
+
 #endif /* LINUX_B43_PHY_COMMON_H_ */
diff --git a/drivers/net/wireless/b43/phy_g.c b/drivers/net/wireless/b43/phy_g.c
index bb95c54..fce8489 100644
--- a/drivers/net/wireless/b43/phy_g.c
+++ b/drivers/net/wireless/b43/phy_g.c
@@ -2659,6 +2659,7 @@
 	/* OFDM-table address caching. */
 	gphy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_UNKNOWN;
 
+	gphy->average_tssi = 0xFF;
 
 	lo = kzalloc(sizeof(*lo), GFP_KERNEL);
 	if (!lo) {
@@ -3011,113 +3012,20 @@
 	*_bbatt = clamp_val(bbatt, bb_min, bb_max);
 }
 
-static void b43_gphy_op_xmitpower(struct b43_wldev *dev)
+static void b43_gphy_op_adjust_txpower(struct b43_wldev *dev)
 {
-	struct ssb_bus *bus = dev->dev->bus;
 	struct b43_phy *phy = &dev->phy;
 	struct b43_phy_g *gphy = phy->g;
-	u16 tmp;
-	s8 v0, v1, v2, v3;
-	s8 average;
-	int max_pwr;
-	int desired_pwr, estimated_pwr, pwr_adjust;
-	int rfatt_delta, bbatt_delta;
 	int rfatt, bbatt;
 	u8 tx_control;
 
-	if (gphy->cur_idle_tssi == 0)
-		return;
-	if ((bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM) &&
-	    (bus->boardinfo.type == SSB_BOARD_BU4306))
-		return;
-
-	tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x0058);
-	v0 = (s8) (tmp & 0x00FF);
-	v1 = (s8) ((tmp & 0xFF00) >> 8);
-	tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x005A);
-	v2 = (s8) (tmp & 0x00FF);
-	v3 = (s8) ((tmp & 0xFF00) >> 8);
-	tmp = 0;
-
-	if (v0 == 0x7F || v1 == 0x7F || v2 == 0x7F
-	    || v3 == 0x7F) {
-		tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x0070);
-		v0 = (s8) (tmp & 0x00FF);
-		v1 = (s8) ((tmp & 0xFF00) >> 8);
-		tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x0072);
-		v2 = (s8) (tmp & 0x00FF);
-		v3 = (s8) ((tmp & 0xFF00) >> 8);
-		if (v0 == 0x7F || v1 == 0x7F || v2 == 0x7F
-		    || v3 == 0x7F)
-			return;
-		v0 = (v0 + 0x20) & 0x3F;
-		v1 = (v1 + 0x20) & 0x3F;
-		v2 = (v2 + 0x20) & 0x3F;
-		v3 = (v3 + 0x20) & 0x3F;
-		tmp = 1;
-	}
-	b43_shm_clear_tssi(dev);
-
-	average = (v0 + v1 + v2 + v3 + 2) / 4;
-
-	if (tmp && (b43_shm_read16(dev, B43_SHM_SHARED, 0x005E) & 0x8))
-		average -= 13;
-
-	estimated_pwr = b43_gphy_estimate_power_out(dev, average);
-
-	max_pwr = dev->dev->bus->sprom.maxpwr_bg;
-	if ((dev->dev->bus->sprom.boardflags_lo
-	    & B43_BFL_PACTRL) && (phy->type == B43_PHYTYPE_G))
-		max_pwr -= 0x3;
-	if (unlikely(max_pwr <= 0)) {
-		b43warn(dev->wl,
-			"Invalid max-TX-power value in SPROM.\n");
-		max_pwr = 60;	/* fake it */
-		dev->dev->bus->sprom.maxpwr_bg = max_pwr;
-	}
-
-	/*TODO:
-	   max_pwr = min(REG - dev->dev->bus->sprom.antennagain_bgphy - 0x6, max_pwr)
-	   where REG is the max power as per the regulatory domain
-	 */
-
-	/* Get desired power (in Q5.2) */
-	desired_pwr = INT_TO_Q52(phy->power_level);
-	/* And limit it. max_pwr already is Q5.2 */
-	desired_pwr = clamp_val(desired_pwr, 0, max_pwr);
-	if (b43_debug(dev, B43_DBG_XMITPOWER)) {
-		b43dbg(dev->wl,
-		       "Current TX power output: " Q52_FMT
-		       " dBm, " "Desired TX power output: "
-		       Q52_FMT " dBm\n", Q52_ARG(estimated_pwr),
-		       Q52_ARG(desired_pwr));
-	}
-
-	/* Calculate the adjustment delta. */
-	pwr_adjust = desired_pwr - estimated_pwr;
-
-	/* RF attenuation delta. */
-	rfatt_delta = ((pwr_adjust + 7) / 8);
-	/* Lower attenuation => Bigger power output. Negate it. */
-	rfatt_delta = -rfatt_delta;
-
-	/* Baseband attenuation delta. */
-	bbatt_delta = pwr_adjust / 2;
-	/* Lower attenuation => Bigger power output. Negate it. */
-	bbatt_delta = -bbatt_delta;
-	/* RF att affects power level 4 times as much as
-	 * Baseband attennuation. Subtract it. */
-	bbatt_delta -= 4 * rfatt_delta;
-
-	/* So do we finally need to adjust something? */
-	if ((rfatt_delta == 0) && (bbatt_delta == 0))
-		return;
+	spin_lock_irq(&dev->wl->irq_lock);
 
 	/* Calculate the new attenuation values. */
 	bbatt = gphy->bbatt.att;
-	bbatt += bbatt_delta;
+	bbatt += gphy->bbatt_delta;
 	rfatt = gphy->rfatt.att;
-	rfatt += rfatt_delta;
+	rfatt += gphy->rfatt_delta;
 
 	b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt);
 	tx_control = gphy->tx_control;
@@ -3152,6 +3060,14 @@
 	gphy->rfatt.att = rfatt;
 	gphy->bbatt.att = bbatt;
 
+	/* We drop the lock early, so we can sleep during hardware
+	 * adjustment. Possible races with op_recalc_txpower are harmless,
+	 * as we will be called once again in case we raced. */
+	spin_unlock_irq(&dev->wl->irq_lock);
+
+	if (b43_debug(dev, B43_DBG_XMITPOWER))
+		b43dbg(dev->wl, "Adjusting TX power\n");
+
 	/* Adjust the hardware */
 	b43_phy_lock(dev);
 	b43_radio_lock(dev);
@@ -3161,6 +3077,111 @@
 	b43_phy_unlock(dev);
 }
 
+static enum b43_txpwr_result b43_gphy_op_recalc_txpower(struct b43_wldev *dev,
+							bool ignore_tssi)
+{
+	struct b43_phy *phy = &dev->phy;
+	struct b43_phy_g *gphy = phy->g;
+	unsigned int average_tssi;
+	int cck_result, ofdm_result;
+	int estimated_pwr, desired_pwr, pwr_adjust;
+	int rfatt_delta, bbatt_delta;
+	unsigned int max_pwr;
+
+	/* First get the average TSSI */
+	cck_result = b43_phy_shm_tssi_read(dev, B43_SHM_SH_TSSI_CCK);
+	ofdm_result = b43_phy_shm_tssi_read(dev, B43_SHM_SH_TSSI_OFDM_G);
+	if ((cck_result < 0) && (ofdm_result < 0)) {
+		/* No TSSI information available */
+		if (!ignore_tssi)
+			goto no_adjustment_needed;
+		cck_result = 0;
+		ofdm_result = 0;
+	}
+	if (cck_result < 0)
+		average_tssi = ofdm_result;
+	else if (ofdm_result < 0)
+		average_tssi = cck_result;
+	else
+		average_tssi = (cck_result + ofdm_result) / 2;
+	/* Merge the average with the stored value. */
+	if (likely(gphy->average_tssi != 0xFF))
+		average_tssi = (average_tssi + gphy->average_tssi) / 2;
+	gphy->average_tssi = average_tssi;
+	B43_WARN_ON(average_tssi >= B43_TSSI_MAX);
+
+	/* Estimate the TX power emission based on the TSSI */
+	estimated_pwr = b43_gphy_estimate_power_out(dev, average_tssi);
+
+	B43_WARN_ON(phy->type != B43_PHYTYPE_G);
+	max_pwr = dev->dev->bus->sprom.maxpwr_bg;
+	if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_PACTRL)
+		max_pwr -= 3; /* minus 0.75 */
+	if (unlikely(max_pwr >= INT_TO_Q52(30/*dBm*/))) {
+		b43warn(dev->wl,
+			"Invalid max-TX-power value in SPROM.\n");
+		max_pwr = INT_TO_Q52(20); /* fake it */
+		dev->dev->bus->sprom.maxpwr_bg = max_pwr;
+	}
+
+	/* Get desired power (in Q5.2) */
+	if (phy->desired_txpower < 0)
+		desired_pwr = INT_TO_Q52(0);
+	else
+		desired_pwr = INT_TO_Q52(phy->desired_txpower);
+	/* And limit it. max_pwr already is Q5.2 */
+	desired_pwr = clamp_val(desired_pwr, 0, max_pwr);
+	if (b43_debug(dev, B43_DBG_XMITPOWER)) {
+		b43dbg(dev->wl,
+		       "[TX power]  current = " Q52_FMT
+		       " dBm,  desired = " Q52_FMT
+		       " dBm,  max = " Q52_FMT "\n",
+		       Q52_ARG(estimated_pwr),
+		       Q52_ARG(desired_pwr),
+		       Q52_ARG(max_pwr));
+	}
+
+	/* Calculate the adjustment delta. */
+	pwr_adjust = desired_pwr - estimated_pwr;
+	if (pwr_adjust == 0)
+		goto no_adjustment_needed;
+
+	/* RF attenuation delta. */
+	rfatt_delta = ((pwr_adjust + 7) / 8);
+	/* Lower attenuation => Bigger power output. Negate it. */
+	rfatt_delta = -rfatt_delta;
+
+	/* Baseband attenuation delta. */
+	bbatt_delta = pwr_adjust / 2;
+	/* Lower attenuation => Bigger power output. Negate it. */
+	bbatt_delta = -bbatt_delta;
+	/* RF att affects power level 4 times as much as
+	 * Baseband attennuation. Subtract it. */
+	bbatt_delta -= 4 * rfatt_delta;
+
+	if (b43_debug(dev, B43_DBG_XMITPOWER)) {
+		int dbm = pwr_adjust < 0 ? -pwr_adjust : pwr_adjust;
+		b43dbg(dev->wl,
+		       "[TX power deltas]  %s" Q52_FMT " dBm   =>   "
+		       "bbatt-delta = %d,  rfatt-delta = %d\n",
+		       (pwr_adjust < 0 ? "-" : ""), Q52_ARG(dbm),
+		       bbatt_delta, rfatt_delta);
+	}
+	/* So do we finally need to adjust something in hardware? */
+	if ((rfatt_delta == 0) && (bbatt_delta == 0))
+		goto no_adjustment_needed;
+
+	/* Save the deltas for later when we adjust the power. */
+	gphy->bbatt_delta = bbatt_delta;
+	gphy->rfatt_delta = rfatt_delta;
+
+	/* We need to adjust the TX power on the device. */
+	return B43_TXPWR_RES_NEED_ADJUST;
+
+no_adjustment_needed:
+	return B43_TXPWR_RES_DONE;
+}
+
 static void b43_gphy_op_pwork_15sec(struct b43_wldev *dev)
 {
 	struct b43_phy *phy = &dev->phy;
@@ -3223,7 +3244,8 @@
 	.get_default_chan	= b43_gphy_op_get_default_chan,
 	.set_rx_antenna		= b43_gphy_op_set_rx_antenna,
 	.interf_mitigation	= b43_gphy_op_interf_mitigation,
-	.xmitpower		= b43_gphy_op_xmitpower,
+	.recalc_txpower		= b43_gphy_op_recalc_txpower,
+	.adjust_txpower		= b43_gphy_op_adjust_txpower,
 	.pwork_15sec		= b43_gphy_op_pwork_15sec,
 	.pwork_60sec		= b43_gphy_op_pwork_60sec,
 };
diff --git a/drivers/net/wireless/b43/phy_g.h b/drivers/net/wireless/b43/phy_g.h
index 1f0daeb..7f95ede 100644
--- a/drivers/net/wireless/b43/phy_g.h
+++ b/drivers/net/wireless/b43/phy_g.h
@@ -115,7 +115,6 @@
 
 struct b43_phy_g {
 	bool initialised;
-	bool dyn_tssi_tbl;	/* tssi2dbm is kmalloc()ed. */
 
 	/* ACI (adjacent channel interference) flags. */
 	bool aci_enable;
@@ -135,12 +134,26 @@
 	u16 minlowsig[2];
 	u16 minlowsigpos[2];
 
-	/* TSSI to dBm table in use */
+	/* Pointer to the table used to convert a
+	 * TSSI value to dBm-Q5.2 */
 	const s8 *tssi2dbm;
+	/* tssi2dbm is kmalloc()ed. Only used for free()ing. */
+	bool dyn_tssi_tbl;
 	/* Target idle TSSI */
 	int tgt_idle_tssi;
 	/* Current idle TSSI */
 	int cur_idle_tssi;
+	/* The current average TSSI.
+	 * Needs irq_lock, as it's updated in the IRQ path. */
+	u8 average_tssi;
+	/* Current TX power level attenuation control values */
+	struct b43_bbatt bbatt;
+	struct b43_rfatt rfatt;
+	u8 tx_control;		/* B43_TXCTL_XXX */
+	/* The calculated attenuation deltas that are used later
+	 * when adjusting the actual power output. */
+	int bbatt_delta;
+	int rfatt_delta;
 
 	/* LocalOscillator control values. */
 	struct b43_txpower_lo_control *lo_control;
@@ -151,11 +164,6 @@
 	s16 lna_gain;		/* LNA */
 	s16 pga_gain;		/* PGA */
 
-	/* Current TX power level attenuation control values */
-	struct b43_bbatt bbatt;
-	struct b43_rfatt rfatt;
-	u8 tx_control;		/* B43_TXCTL_XXX */
-
 	/* Current Interference Mitigation mode */
 	int interfmode;
 	/* Stack of saved values from the Interference Mitigation code.
diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c
index c8a8312..5e0b71c 100644
--- a/drivers/net/wireless/b43/xmit.c
+++ b/drivers/net/wireless/b43/xmit.c
@@ -680,6 +680,8 @@
 		b43_pio_handle_txstatus(dev, status);
 	else
 		b43_dma_handle_txstatus(dev, status);
+
+	b43_phy_txpower_check(dev, 0);
 }
 
 /* Fill out the mac80211 TXstatus report based on the b43-specific