b43: LP-PHY: Begin implementing calibration & software RFKILL support

This implements the following calibration functions:
-Set TX IQCC
-Set TX Power by Index
-PR41573 workaround (incomplete, needs PHY reset)
-Calc RX IQ Comp
-PHY Cordic
-Run Samples
-Start/Stop TX Tone
-part of PAPD Cal TX Power
-RX I/Q Calibration
-The basic structure of the periodic calibration wrapper

Software RFKILL (required by calibration) is also implemented in
this round.
Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/b43/phy_lp.c

@@ -67,6 +67,7 @@ static void b43_lpphy_op_prepare_structs(struct b43_wldev *dev)
 	struct b43_phy_lp *lpphy = phy->lp;
 
 	memset(lpphy, 0, sizeof(*lpphy));
+	lpphy->antenna = B43_ANTENNA_DEFAULT;
 
 	//TODO
 }
@@ -379,8 +380,6 @@ static void lpphy_save_dig_flt_state(struct b43_wldev *dev)
 	}
 }
 
-/* lpphy_restore_dig_flt_state is unused but kept as a reference */
-#if 0
 static void lpphy_restore_dig_flt_state(struct b43_wldev *dev)
 {
 	static const u16 addr[] = {
@@ -401,7 +400,6 @@ static void lpphy_restore_dig_flt_state(struct b43_wldev *dev)
 	for (i = 0; i < ARRAY_SIZE(addr); i++)
 		b43_phy_write(dev, addr[i], lpphy->dig_flt_state[i]);
 }
-#endif
 
 static void lpphy_baseband_rev2plus_init(struct b43_wldev *dev)
 {
@@ -754,11 +752,17 @@ static void lpphy_clear_deaf(struct b43_wldev *dev, bool user)
 	}
 }
 
+static void lpphy_set_trsw_over(struct b43_wldev *dev, bool tx, bool rx)
+{
+	u16 trsw = (tx << 1) | rx;
+	b43_phy_maskset(dev, B43_LPPHY_RF_OVERRIDE_VAL_0, 0xFFFC, trsw);
+	b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x3);
+}
+
 static void lpphy_disable_crs(struct b43_wldev *dev, bool user)
 {
 	lpphy_set_deaf(dev, user);
-	b43_phy_maskset(dev, B43_LPPHY_RF_OVERRIDE_VAL_0, 0xFFFC, 0x1);
-	b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x3);
+	lpphy_set_trsw_over(dev, false, true);
 	b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_VAL_0, 0xFFFB);
 	b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x4);
 	b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_VAL_0, 0xFFF7);
@@ -793,6 +797,60 @@ static void lpphy_restore_crs(struct b43_wldev *dev, bool user)
 
 struct lpphy_tx_gains { u16 gm, pga, pad, dac; };
 
+static void lpphy_disable_rx_gain_override(struct b43_wldev *dev)
+{
+	b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_0, 0xFFFE);
+	b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_0, 0xFFEF);
+	b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_0, 0xFFBF);
+	if (dev->phy.rev >= 2) {
+		b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_2, 0xFEFF);
+		if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
+			b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_2, 0xFBFF);
+			b43_phy_mask(dev, B43_PHY_OFDM(0xE5), 0xFFF7);
+		}
+	} else {
+		b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_2, 0xFDFF);
+	}
+}
+
+static void lpphy_enable_rx_gain_override(struct b43_wldev *dev)
+{
+	b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x1);
+	b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x10);
+	b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x40);
+	if (dev->phy.rev >= 2) {
+		b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_2, 0x100);
+		if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
+			b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_2, 0x400);
+			b43_phy_set(dev, B43_PHY_OFDM(0xE5), 0x8);
+		}
+	} else {
+		b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_2, 0x200);
+	}
+}
+
+static void lpphy_disable_tx_gain_override(struct b43_wldev *dev)
+{
+	if (dev->phy.rev < 2)
+		b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_2, 0xFEFF);
+	else {
+		b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_2, 0xFF7F);
+		b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_2, 0xBFFF);
+	}
+	b43_phy_mask(dev, B43_LPPHY_AFE_CTL_OVR, 0xFFBF);
+}
+
+static void lpphy_enable_tx_gain_override(struct b43_wldev *dev)
+{
+	if (dev->phy.rev < 2)
+		b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_2, 0x100);
+	else {
+		b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_2, 0x80);
+		b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_2, 0x4000);
+	}
+	b43_phy_set(dev, B43_LPPHY_AFE_CTL_OVR, 0x40);
+}
+
 static struct lpphy_tx_gains lpphy_get_tx_gains(struct b43_wldev *dev)
 {
 	struct lpphy_tx_gains gains;
@@ -822,6 +880,17 @@ static void lpphy_set_dac_gain(struct b43_wldev *dev, u16 dac)
 	b43_phy_maskset(dev, B43_LPPHY_AFE_DAC_CTL, 0xF000, ctl);
 }
 
+static u16 lpphy_get_pa_gain(struct b43_wldev *dev)
+{
+	return b43_phy_read(dev, B43_PHY_OFDM(0xFB)) & 0x7F;
+}
+
+static void lpphy_set_pa_gain(struct b43_wldev *dev, u16 gain)
+{
+	b43_phy_maskset(dev, B43_PHY_OFDM(0xFB), 0xE03F, gain << 6);
+	b43_phy_maskset(dev, B43_PHY_OFDM(0xFD), 0x80FF, gain << 8);
+}
+
 static void lpphy_set_tx_gains(struct b43_wldev *dev,
 			       struct lpphy_tx_gains gains)
 {
@@ -832,25 +901,22 @@ static void lpphy_set_tx_gains(struct b43_wldev *dev,
 		b43_phy_maskset(dev, B43_LPPHY_TX_GAIN_CTL_OVERRIDE_VAL,
 				0xF800, rf_gain);
 	} else {
-		pa_gain = b43_phy_read(dev, B43_PHY_OFDM(0xFB)) & 0x1FC0;
-		pa_gain <<= 2;
+		pa_gain = lpphy_get_pa_gain(dev);
 		b43_phy_write(dev, B43_LPPHY_TX_GAIN_CTL_OVERRIDE_VAL,
 			      (gains.pga << 8) | gains.gm);
+		/*
+		 * SPEC FIXME The spec calls for (pa_gain << 8) here, but that
+		 * conflicts with the spec for set_pa_gain! Vendor driver bug?
+		 */
 		b43_phy_maskset(dev, B43_PHY_OFDM(0xFB),
-				0x8000, gains.pad | pa_gain);
+				0x8000, gains.pad | (pa_gain << 6));
 		b43_phy_write(dev, B43_PHY_OFDM(0xFC),
 			      (gains.pga << 8) | gains.gm);
 		b43_phy_maskset(dev, B43_PHY_OFDM(0xFD),
-				0x8000, gains.pad | pa_gain);
+				0x8000, gains.pad | (pa_gain << 8));
 	}
 	lpphy_set_dac_gain(dev, gains.dac);
-	if (dev->phy.rev < 2) {
-		b43_phy_maskset(dev, B43_LPPHY_RF_OVERRIDE_2, 0xFEFF, 1 << 8);
-	} else {
-		b43_phy_maskset(dev, B43_LPPHY_RF_OVERRIDE_2, 0xFF7F, 1 << 7);
-		b43_phy_maskset(dev, B43_LPPHY_RF_OVERRIDE_2, 0xBFFF, 1 << 14);
-	}
-	b43_phy_maskset(dev, B43_LPPHY_AFE_CTL_OVR, 0xFFBF, 1 << 6);
+	lpphy_enable_tx_gain_override(dev);
 }
 
 static void lpphy_rev0_1_set_rx_gain(struct b43_wldev *dev, u32 gain)
@@ -890,41 +956,6 @@ static void lpphy_rev2plus_set_rx_gain(struct b43_wldev *dev, u32 gain)
 	}
 }
 
-/* lpphy_disable_rx_gain_override is unused but kept as a reference */
-#if 0
-static void lpphy_disable_rx_gain_override(struct b43_wldev *dev)
-{
-	b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_0, 0xFFFE);
-	b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_0, 0xFFEF);
-	b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_0, 0xFFBF);
-	if (dev->phy.rev >= 2) {
-		b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_2, 0xFEFF);
-		if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
-			b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_2, 0xFBFF);
-			b43_phy_mask(dev, B43_PHY_OFDM(0xE5), 0xFFF7);
-		}
-	} else {
-		b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_2, 0xFDFF);
-	}
-}
-#endif
-
-static void lpphy_enable_rx_gain_override(struct b43_wldev *dev)
-{
-	b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x1);
-	b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x10);
-	b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x40);
-	if (dev->phy.rev >= 2) {
-		b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_2, 0x100);
-		if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
-			b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_2, 0x400);
-			b43_phy_set(dev, B43_PHY_OFDM(0xE5), 0x8);
-		}
-	} else {
-		b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_2, 0x200);
-	}
-}
-
 static void lpphy_set_rx_gain(struct b43_wldev *dev, u32 gain)
 {
 	if (dev->phy.rev < 2)
@@ -1009,8 +1040,7 @@ static int lpphy_loopback(struct b43_wldev *dev)
 
 	memset(&iq_est, 0, sizeof(iq_est));
 
-	b43_phy_maskset(dev, B43_LPPHY_RF_OVERRIDE_VAL_0, 0xFFFC, 0x3);
-	b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x3);
+	lpphy_set_trsw_over(dev, true, true);
 	b43_phy_set(dev, B43_LPPHY_AFE_CTL_OVR, 1);
 	b43_phy_mask(dev, B43_LPPHY_AFE_CTL_OVRVAL, 0xFFFE);
 	b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x800);
@@ -1132,7 +1162,7 @@ static void lpphy_set_tx_power_control(struct b43_wldev *dev,
 			b43_phy_maskset(dev, B43_LPPHY_TX_PWR_CTL_NNUM,
 					0x8FFF, ((u16)lpphy->tssi_npt << 16));
 			//TODO Set "TSSI Transmit Count" variable to total transmitted frame count
-			//TODO Disable TX gain override
+			lpphy_disable_tx_gain_override(dev);
 			lpphy->tx_pwr_idx_over = -1;
 		}
 	}
@@ -1318,15 +1348,73 @@ static void lpphy_calibrate_rc(struct b43_wldev *dev)
 	}
 }
 
+static void b43_lpphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna)
+{
+	if (dev->phy.rev >= 2)
+		return; // rev2+ doesn't support antenna diversity
+
+	if (B43_WARN_ON(antenna > B43_ANTENNA_AUTO1))
+		return;
+
+	b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ANTDIVHELP);
+
+	b43_phy_maskset(dev, B43_LPPHY_CRSGAIN_CTL, 0xFFFD, antenna & 0x2);
+	b43_phy_maskset(dev, B43_LPPHY_CRSGAIN_CTL, 0xFFFE, antenna & 0x1);
+
+	b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ANTDIVHELP);
+
+	dev->phy.lp->antenna = antenna;
+}
+
+static void lpphy_set_tx_iqcc(struct b43_wldev *dev, u16 a, u16 b)
+{
+	u16 tmp[2];
+
+	tmp[0] = a;
+	tmp[1] = b;
+	b43_lptab_write_bulk(dev, B43_LPTAB16(0, 80), 2, tmp);
+}
+
 static void lpphy_set_tx_power_by_index(struct b43_wldev *dev, u8 index)
 {
 	struct b43_phy_lp *lpphy = dev->phy.lp;
+	struct lpphy_tx_gains gains;
+	u32 iq_comp, tx_gain, coeff, rf_power;
 
 	lpphy->tx_pwr_idx_over = index;
+	lpphy_read_tx_pctl_mode_from_hardware(dev);
 	if (lpphy->txpctl_mode != B43_LPPHY_TXPCTL_OFF)
 		lpphy_set_tx_power_control(dev, B43_LPPHY_TXPCTL_SW);
-
-	//TODO
+	if (dev->phy.rev >= 2) {
+		iq_comp = b43_lptab_read(dev, B43_LPTAB32(7, index + 320));
+		tx_gain = b43_lptab_read(dev, B43_LPTAB32(7, index + 192));
+		gains.pad = (tx_gain >> 16) & 0xFF;
+		gains.gm = tx_gain & 0xFF;
+		gains.pga = (tx_gain >> 8) & 0xFF;
+		gains.dac = (iq_comp >> 28) & 0xFF;
+		lpphy_set_tx_gains(dev, gains);
+	} else {
+		iq_comp = b43_lptab_read(dev, B43_LPTAB32(10, index + 320));
+		tx_gain = b43_lptab_read(dev, B43_LPTAB32(10, index + 192));
+		b43_phy_maskset(dev, B43_LPPHY_TX_GAIN_CTL_OVERRIDE_VAL,
+				0xF800, (tx_gain >> 4) & 0x7FFF);
+		lpphy_set_dac_gain(dev, tx_gain & 0x7);
+		lpphy_set_pa_gain(dev, (tx_gain >> 24) & 0x7F);
+	}
+	lpphy_set_bb_mult(dev, (iq_comp >> 20) & 0xFF);
+	lpphy_set_tx_iqcc(dev, (iq_comp >> 10) & 0x3FF, iq_comp & 0x3FF);
+	if (dev->phy.rev >= 2) {
+		coeff = b43_lptab_read(dev, B43_LPTAB32(7, index + 448));
+	} else {
+		coeff = b43_lptab_read(dev, B43_LPTAB32(10, index + 448));
+	}
+	b43_lptab_write(dev, B43_LPTAB16(0, 85), coeff & 0xFFFF);
+	if (dev->phy.rev >= 2) {
+		rf_power = b43_lptab_read(dev, B43_LPTAB32(7, index + 576));
+		b43_phy_maskset(dev, B43_LPPHY_RF_PWR_OVERRIDE, 0xFF00,
+				rf_power & 0xFFFF);//SPEC FIXME mask & set != 0
+	}
+	lpphy_enable_tx_gain_override(dev);
 }
 
 static void lpphy_btcoex_override(struct b43_wldev *dev)
@@ -1335,58 +1423,45 @@ static void lpphy_btcoex_override(struct b43_wldev *dev)
 	b43_write16(dev, B43_MMIO_BTCOEX_TXCTL, 0xFF);
 }
 
-static void lpphy_pr41573_workaround(struct b43_wldev *dev)
+static void b43_lpphy_op_software_rfkill(struct b43_wldev *dev,
+					 bool blocked)
 {
-	struct b43_phy_lp *lpphy = dev->phy.lp;
-	u32 *saved_tab;
-	const unsigned int saved_tab_size = 256;
-	enum b43_lpphy_txpctl_mode txpctl_mode;
-	s8 tx_pwr_idx_over;
-	u16 tssi_npt, tssi_idx;
-
-	saved_tab = kcalloc(saved_tab_size, sizeof(saved_tab[0]), GFP_KERNEL);
-	if (!saved_tab) {
-		b43err(dev->wl, "PR41573 failed. Out of memory!\n");
-		return;
+	//TODO check MAC control register
+	if (blocked) {
+		if (dev->phy.rev >= 2) {
+			b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_VAL_0, 0x83FF);
+			b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x1F00);
+			b43_phy_mask(dev, B43_LPPHY_AFE_DDFS, 0x80FF);
+			b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_2_VAL, 0xDFFF);
+			b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_2, 0x0808);
+		} else {
+			b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_VAL_0, 0xE0FF);
+			b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x1F00);
+			b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_2_VAL, 0xFCFF);
+			b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_2, 0x0018);
 		}
-
-	lpphy_read_tx_pctl_mode_from_hardware(dev);
-	txpctl_mode = lpphy->txpctl_mode;
-	tx_pwr_idx_over = lpphy->tx_pwr_idx_over;
-	tssi_npt = lpphy->tssi_npt;
-	tssi_idx = lpphy->tssi_idx;
-
-	if (dev->phy.rev < 2) {
-		b43_lptab_read_bulk(dev, B43_LPTAB32(10, 0x140),
-				    saved_tab_size, saved_tab);
 	} else {
-		b43_lptab_read_bulk(dev, B43_LPTAB32(7, 0x140),
-				    saved_tab_size, saved_tab);
+		b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_0, 0xE0FF);
+		if (dev->phy.rev >= 2)
+			b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_2, 0xF7F7);
+		else
+			b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_2, 0xFFE7);
 	}
-	//TODO
-
-	kfree(saved_tab);
 }
 
-static void lpphy_calibration(struct b43_wldev *dev)
+/* This was previously called lpphy_japan_filter */
+static void lpphy_set_analog_filter(struct b43_wldev *dev, int channel)
 {
 	struct b43_phy_lp *lpphy = dev->phy.lp;
-	enum b43_lpphy_txpctl_mode saved_pctl_mode;
-
-	b43_mac_suspend(dev);
-
-	lpphy_btcoex_override(dev);
-	lpphy_read_tx_pctl_mode_from_hardware(dev);
-	saved_pctl_mode = lpphy->txpctl_mode;
-	lpphy_set_tx_power_control(dev, B43_LPPHY_TXPCTL_OFF);
-	//TODO Perform transmit power table I/Q LO calibration
-	if ((dev->phy.rev == 0) && (saved_pctl_mode != B43_LPPHY_TXPCTL_OFF))
-		lpphy_pr41573_workaround(dev);
-	//TODO If a full calibration has not been performed on this channel yet, perform PAPD TX-power calibration
-	lpphy_set_tx_power_control(dev, saved_pctl_mode);
-	//TODO Perform I/Q calibration with a single control value set
+	u16 tmp = (channel == 14); //SPEC FIXME check japanwidefilter!
 
-	b43_mac_enable(dev);
+	if (dev->phy.rev < 2) { //SPEC FIXME Isn't this rev0/1-specific?
+		b43_phy_maskset(dev, B43_LPPHY_LP_PHY_CTL, 0xFCFF, tmp << 9);
+		if ((dev->phy.rev == 1) && (lpphy->rc_cap))
+			lpphy_set_rc_cap(dev);
+	} else {
+		b43_radio_write(dev, B2063_TX_BB_SP3, 0x3F);
+	}
 }
 
 static void lpphy_set_tssi_mux(struct b43_wldev *dev, enum tssi_mux_mode mode)
@@ -1495,6 +1570,473 @@ static void lpphy_tx_pctl_init(struct b43_wldev *dev)
 	}
 }
 
+static void lpphy_pr41573_workaround(struct b43_wldev *dev)
+{
+	struct b43_phy_lp *lpphy = dev->phy.lp;
+	u32 *saved_tab;
+	const unsigned int saved_tab_size = 256;
+	enum b43_lpphy_txpctl_mode txpctl_mode;
+	s8 tx_pwr_idx_over;
+	u16 tssi_npt, tssi_idx;
+
+	saved_tab = kcalloc(saved_tab_size, sizeof(saved_tab[0]), GFP_KERNEL);
+	if (!saved_tab) {
+		b43err(dev->wl, "PR41573 failed. Out of memory!\n");
+		return;
+	}
+
+	lpphy_read_tx_pctl_mode_from_hardware(dev);
+	txpctl_mode = lpphy->txpctl_mode;
+	tx_pwr_idx_over = lpphy->tx_pwr_idx_over;
+	tssi_npt = lpphy->tssi_npt;
+	tssi_idx = lpphy->tssi_idx;
+
+	if (dev->phy.rev < 2) {
+		b43_lptab_read_bulk(dev, B43_LPTAB32(10, 0x140),
+				    saved_tab_size, saved_tab);
+	} else {
+		b43_lptab_read_bulk(dev, B43_LPTAB32(7, 0x140),
+				    saved_tab_size, saved_tab);
+	}
+	//FIXME PHY reset
+	lpphy_table_init(dev); //FIXME is table init needed?
+	lpphy_baseband_init(dev);
+	lpphy_tx_pctl_init(dev);
+	b43_lpphy_op_software_rfkill(dev, false);
+	lpphy_set_tx_power_control(dev, B43_LPPHY_TXPCTL_OFF);
+	if (dev->phy.rev < 2) {
+		b43_lptab_write_bulk(dev, B43_LPTAB32(10, 0x140),
+				     saved_tab_size, saved_tab);
+	} else {
+		b43_lptab_write_bulk(dev, B43_LPTAB32(7, 0x140),
+				     saved_tab_size, saved_tab);
+	}
+	b43_write16(dev, B43_MMIO_CHANNEL, lpphy->channel);
+	lpphy->tssi_npt = tssi_npt;
+	lpphy->tssi_idx = tssi_idx;
+	lpphy_set_analog_filter(dev, lpphy->channel);
+	if (tx_pwr_idx_over != -1)
+		lpphy_set_tx_power_by_index(dev, tx_pwr_idx_over);
+	if (lpphy->rc_cap)
+		lpphy_set_rc_cap(dev);
+	b43_lpphy_op_set_rx_antenna(dev, lpphy->antenna);
+	lpphy_set_tx_power_control(dev, txpctl_mode);
+	kfree(saved_tab);
+}
+
+struct lpphy_rx_iq_comp { u8 chan; s8 c1, c0; };
+
+static const struct lpphy_rx_iq_comp lpphy_5354_iq_table[] = {
+	{ .chan = 1, .c1 = -66, .c0 = 15, },
+	{ .chan = 2, .c1 = -66, .c0 = 15, },
+	{ .chan = 3, .c1 = -66, .c0 = 15, },
+	{ .chan = 4, .c1 = -66, .c0 = 15, },
+	{ .chan = 5, .c1 = -66, .c0 = 15, },
+	{ .chan = 6, .c1 = -66, .c0 = 15, },
+	{ .chan = 7, .c1 = -66, .c0 = 14, },
+	{ .chan = 8, .c1 = -66, .c0 = 14, },
+	{ .chan = 9, .c1 = -66, .c0 = 14, },
+	{ .chan = 10, .c1 = -66, .c0 = 14, },
+	{ .chan = 11, .c1 = -66, .c0 = 14, },
+	{ .chan = 12, .c1 = -66, .c0 = 13, },
+	{ .chan = 13, .c1 = -66, .c0 = 13, },
+	{ .chan = 14, .c1 = -66, .c0 = 13, },
+};
+
+static const struct lpphy_rx_iq_comp lpphy_rev0_1_iq_table[] = {
+	{ .chan = 1, .c1 = -64, .c0 = 13, },
+	{ .chan = 2, .c1 = -64, .c0 = 13, },
+	{ .chan = 3, .c1 = -64, .c0 = 13, },
+	{ .chan = 4, .c1 = -64, .c0 = 13, },
+	{ .chan = 5, .c1 = -64, .c0 = 12, },
+	{ .chan = 6, .c1 = -64, .c0 = 12, },
+	{ .chan = 7, .c1 = -64, .c0 = 12, },
+	{ .chan = 8, .c1 = -64, .c0 = 12, },
+	{ .chan = 9, .c1 = -64, .c0 = 12, },
+	{ .chan = 10, .c1 = -64, .c0 = 11, },
+	{ .chan = 11, .c1 = -64, .c0 = 11, },
+	{ .chan = 12, .c1 = -64, .c0 = 11, },
+	{ .chan = 13, .c1 = -64, .c0 = 11, },
+	{ .chan = 14, .c1 = -64, .c0 = 10, },
+	{ .chan = 34, .c1 = -62, .c0 = 24, },
+	{ .chan = 38, .c1 = -62, .c0 = 24, },
+	{ .chan = 42, .c1 = -62, .c0 = 24, },
+	{ .chan = 46, .c1 = -62, .c0 = 23, },
+	{ .chan = 36, .c1 = -62, .c0 = 24, },
+	{ .chan = 40, .c1 = -62, .c0 = 24, },
+	{ .chan = 44, .c1 = -62, .c0 = 23, },
+	{ .chan = 48, .c1 = -62, .c0 = 23, },
+	{ .chan = 52, .c1 = -62, .c0 = 23, },
+	{ .chan = 56, .c1 = -62, .c0 = 22, },
+	{ .chan = 60, .c1 = -62, .c0 = 22, },
+	{ .chan = 64, .c1 = -62, .c0 = 22, },
+	{ .chan = 100, .c1 = -62, .c0 = 16, },
+	{ .chan = 104, .c1 = -62, .c0 = 16, },
+	{ .chan = 108, .c1 = -62, .c0 = 15, },
+	{ .chan = 112, .c1 = -62, .c0 = 14, },
+	{ .chan = 116, .c1 = -62, .c0 = 14, },
+	{ .chan = 120, .c1 = -62, .c0 = 13, },
+	{ .chan = 124, .c1 = -62, .c0 = 12, },
+	{ .chan = 128, .c1 = -62, .c0 = 12, },
+	{ .chan = 132, .c1 = -62, .c0 = 12, },
+	{ .chan = 136, .c1 = -62, .c0 = 11, },
+	{ .chan = 140, .c1 = -62, .c0 = 10, },
+	{ .chan = 149, .c1 = -61, .c0 = 9, },
+	{ .chan = 153, .c1 = -61, .c0 = 9, },
+	{ .chan = 157, .c1 = -61, .c0 = 9, },
+	{ .chan = 161, .c1 = -61, .c0 = 8, },
+	{ .chan = 165, .c1 = -61, .c0 = 8, },
+	{ .chan = 184, .c1 = -62, .c0 = 25, },
+	{ .chan = 188, .c1 = -62, .c0 = 25, },
+	{ .chan = 192, .c1 = -62, .c0 = 25, },
+	{ .chan = 196, .c1 = -62, .c0 = 25, },
+	{ .chan = 200, .c1 = -62, .c0 = 25, },
+	{ .chan = 204, .c1 = -62, .c0 = 25, },
+	{ .chan = 208, .c1 = -62, .c0 = 25, },
+	{ .chan = 212, .c1 = -62, .c0 = 25, },
+	{ .chan = 216, .c1 = -62, .c0 = 26, },
+};
+
+static const struct lpphy_rx_iq_comp lpphy_rev2plus_iq_comp = {
+	.chan = 0,
+	.c1 = -64,
+	.c0 = 0,
+};
+
+static u8 lpphy_nbits(s32 val)
+{
+	u32 tmp = abs(val);
+	u8 nbits = 0;
+
+	while (tmp != 0) {
+		nbits++;
+		tmp >>= 1;
+	}
+
+	return nbits;
+}
+
+static int lpphy_calc_rx_iq_comp(struct b43_wldev *dev, u16 samples)
+{
+	struct lpphy_iq_est iq_est;
+	u16 c0, c1;
+	int prod, ipwr, qpwr, prod_msb, q_msb, tmp1, tmp2, tmp3, tmp4, ret;
+
+	c1 = b43_phy_read(dev, B43_LPPHY_RX_COMP_COEFF_S);
+	c0 = c1 >> 8;
+	c1 |= 0xFF;
+
+	b43_phy_maskset(dev, B43_LPPHY_RX_COMP_COEFF_S, 0xFF00, 0x00C0);
+	b43_phy_mask(dev, B43_LPPHY_RX_COMP_COEFF_S, 0x00FF);
+
+	ret = lpphy_rx_iq_est(dev, samples, 32, &iq_est);
+	if (!ret)
+		goto out;
+
+	prod = iq_est.iq_prod;
+	ipwr = iq_est.i_pwr;
+	qpwr = iq_est.q_pwr;
+
+	if (ipwr + qpwr < 2) {
+		ret = 0;
+		goto out;
+	}
+
+	prod_msb = lpphy_nbits(prod);
+	q_msb = lpphy_nbits(qpwr);
+	tmp1 = prod_msb - 20;
+
+	if (tmp1 >= 0) {
+		tmp3 = ((prod << (30 - prod_msb)) + (ipwr >> (1 + tmp1))) /
+			(ipwr >> tmp1);
+	} else {
+		tmp3 = ((prod << (30 - prod_msb)) + (ipwr << (-1 - tmp1))) /
+			(ipwr << -tmp1);
+	}
+
+	tmp2 = q_msb - 11;
+
+	if (tmp2 >= 0)
+		tmp4 = (qpwr << (31 - q_msb)) / (ipwr >> tmp2);
+	else
+		tmp4 = (qpwr << (31 - q_msb)) / (ipwr << -tmp2);
+
+	tmp4 -= tmp3 * tmp3;
+	tmp4 = -int_sqrt(tmp4);
+
+	c0 = tmp3 >> 3;
+	c1 = tmp4 >> 4;
+
+out:
+	b43_phy_maskset(dev, B43_LPPHY_RX_COMP_COEFF_S, 0xFF00, c1);
+	b43_phy_maskset(dev, B43_LPPHY_RX_COMP_COEFF_S, 0x00FF, c0 << 8);
+	return ret;
+}
+
+/* Complex number using 2 32-bit signed integers */
+typedef struct {s32 i, q;} lpphy_c32;
+
+static lpphy_c32 lpphy_cordic(int theta)
+{
+	u32 arctg[] = { 2949120, 1740967, 919879, 466945, 234379, 117304,
+		      58666, 29335, 14668, 7334, 3667, 1833, 917, 458,
+		      229, 115, 57, 29, };
+	int i, tmp, signx = 1, angle = 0;
+	lpphy_c32 ret = { .i = 39797, .q = 0, };
+
+	theta = clamp_t(int, theta, -180, 180);
+
+	if (theta > 90) {
+		theta -= 180;
+		signx = -1;
+	} else if (theta < -90) {
+		theta += 180;
+		signx = -1;
+	}
+
+	for (i = 0; i <= 17; i++) {
+		if (theta > angle) {
+			tmp = ret.i - (ret.q >> i);
+			ret.q += ret.i >> i;
+			ret.i = tmp;
+			angle += arctg[i];
+		} else {
+			tmp = ret.i + (ret.q >> i);
+			ret.q -= ret.i >> i;
+			ret.i = tmp;
+			angle -= arctg[i];
+		}
+	}
+
+	ret.i *= signx;
+	ret.q *= signx;
+
+	return ret;
+}
+
+static void lpphy_run_samples(struct b43_wldev *dev, u16 samples, u16 loops,
+			      u16 wait)
+{
+	b43_phy_maskset(dev, B43_LPPHY_SMPL_PLAY_BUFFER_CTL,
+			0xFFC0, samples - 1);
+	if (loops != 0xFFFF)
+		loops--;
+	b43_phy_maskset(dev, B43_LPPHY_SMPL_PLAY_COUNT, 0xF000, loops);
+	b43_phy_maskset(dev, B43_LPPHY_SMPL_PLAY_BUFFER_CTL, 0x3F, wait << 6);
+	b43_phy_set(dev, B43_LPPHY_A_PHY_CTL_ADDR, 0x1);
+}
+
+//SPEC FIXME what does a negative freq mean?
+static void lpphy_start_tx_tone(struct b43_wldev *dev, s32 freq, u16 max)
+{
+	struct b43_phy_lp *lpphy = dev->phy.lp;
+	u16 buf[64];
+	int i, samples = 0, angle = 0, rotation = (9 * freq) / 500;
+	lpphy_c32 sample;
+
+	lpphy->tx_tone_freq = freq;
+
+	if (freq) {
+		/* Find i for which abs(freq) integrally divides 20000 * i */
+		for (i = 1; samples * abs(freq) != 20000 * i; i++) {
+			samples = (20000 * i) / abs(freq);
+			if(B43_WARN_ON(samples > 63))
+				return;
+		}
+	} else {
+		samples = 2;
+	}
+
+	for (i = 0; i < samples; i++) {
+		sample = lpphy_cordic(angle);
+		angle += rotation;
+		buf[i] = ((sample.i * max) & 0xFF) << 8;
+		buf[i] |= (sample.q * max) & 0xFF;
+	}
+
+	b43_lptab_write_bulk(dev, B43_LPTAB16(5, 0), samples, buf);
+
+	lpphy_run_samples(dev, samples, 0xFFFF, 0);
+}
+
+static void lpphy_stop_tx_tone(struct b43_wldev *dev)
+{
+	struct b43_phy_lp *lpphy = dev->phy.lp;
+	int i;
+
+	lpphy->tx_tone_freq = 0;
+
+	b43_phy_mask(dev, B43_LPPHY_SMPL_PLAY_COUNT, 0xF000);
+	for (i = 0; i < 31; i++) {
+		if (!(b43_phy_read(dev, B43_LPPHY_A_PHY_CTL_ADDR) & 0x1))
+			break;
+		udelay(100);
+	}
+}
+
+
+static void lpphy_papd_cal(struct b43_wldev *dev, struct lpphy_tx_gains gains,
+			   int mode, bool useindex, u8 index)
+{
+	//TODO
+}
+
+static void lpphy_papd_cal_txpwr(struct b43_wldev *dev)
+{
+	struct b43_phy_lp *lpphy = dev->phy.lp;
+	struct ssb_bus *bus = dev->dev->bus;
+	struct lpphy_tx_gains gains, oldgains;
+	int old_txpctl, old_afe_ovr, old_rf, old_bbmult;
+
+	lpphy_read_tx_pctl_mode_from_hardware(dev);
+	old_txpctl = lpphy->txpctl_mode;
+	old_afe_ovr = b43_phy_read(dev, B43_LPPHY_AFE_CTL_OVR) & 0x40;
+	if (old_afe_ovr)
+		oldgains = lpphy_get_tx_gains(dev);
+	old_rf = b43_phy_read(dev, B43_LPPHY_RF_PWR_OVERRIDE) & 0xFF;
+	old_bbmult = lpphy_get_bb_mult(dev);
+
+	lpphy_set_tx_power_control(dev, B43_LPPHY_TXPCTL_OFF);
+
+	if (bus->chip_id == 0x4325 && bus->chip_rev == 0)
+		lpphy_papd_cal(dev, gains, 0, 1, 30);
+	else
+		lpphy_papd_cal(dev, gains, 0, 1, 65);
+
+	if (old_afe_ovr)
+		lpphy_set_tx_gains(dev, oldgains);
+	lpphy_set_bb_mult(dev, old_bbmult);
+	lpphy_set_tx_power_control(dev, old_txpctl);
+	b43_phy_maskset(dev, B43_LPPHY_RF_PWR_OVERRIDE, 0xFF00, old_rf);
+}
+
+static int lpphy_rx_iq_cal(struct b43_wldev *dev, bool noise, bool tx,
+			    bool rx, bool pa, struct lpphy_tx_gains *gains)
+{
+	struct b43_phy_lp *lpphy = dev->phy.lp;
+	struct ssb_bus *bus = dev->dev->bus;
+	const struct lpphy_rx_iq_comp *iqcomp = NULL;
+	struct lpphy_tx_gains nogains, oldgains;
+	u16 tmp;
+	int i, ret;
+
+	memset(&nogains, 0, sizeof(nogains));
+	memset(&oldgains, 0, sizeof(oldgains));
+
+	if (bus->chip_id == 0x5354) {
+		for (i = 0; i < ARRAY_SIZE(lpphy_5354_iq_table); i++) {
+			if (lpphy_5354_iq_table[i].chan == lpphy->channel) {
+				iqcomp = &lpphy_5354_iq_table[i];
+			}
+		}
+	} else if (dev->phy.rev >= 2) {
+		iqcomp = &lpphy_rev2plus_iq_comp;
+	} else {
+		for (i = 0; i < ARRAY_SIZE(lpphy_rev0_1_iq_table); i++) {
+			if (lpphy_rev0_1_iq_table[i].chan == lpphy->channel) {
+				iqcomp = &lpphy_rev0_1_iq_table[i];
+			}
+		}
+	}
+
+	if (B43_WARN_ON(!iqcomp))
+		return 0;
+
+	b43_phy_maskset(dev, B43_LPPHY_RX_COMP_COEFF_S, 0xFF00, iqcomp->c1);
+	b43_phy_maskset(dev, B43_LPPHY_RX_COMP_COEFF_S,
+			0x00FF, iqcomp->c0 << 8);
+
+	if (noise) {
+		tx = true;
+		rx = false;
+		pa = false;
+	}
+
+	lpphy_set_trsw_over(dev, tx, rx);
+
+	if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
+		b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x8);
+		b43_phy_maskset(dev, B43_LPPHY_RF_OVERRIDE_VAL_0,
+				0xFFF7, pa << 3);
+	} else {
+		b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x20);
+		b43_phy_maskset(dev, B43_LPPHY_RF_OVERRIDE_VAL_0,
+				0xFFDF, pa << 5);
+	}
+
+	tmp = b43_phy_read(dev, B43_LPPHY_AFE_CTL_OVR) & 0x40;
+
+	if (noise)
+		lpphy_set_rx_gain(dev, 0x2D5D);
+	else {
+		if (tmp)
+			oldgains = lpphy_get_tx_gains(dev);
+		if (!gains)
+			gains = &nogains;
+		lpphy_set_tx_gains(dev, *gains);
+	}
+
+	b43_phy_mask(dev, B43_LPPHY_AFE_CTL_OVR, 0xFFFE);
+	b43_phy_mask(dev, B43_LPPHY_AFE_CTL_OVRVAL, 0xFFFE);
+	b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x800);
+	b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_VAL_0, 0x800);
+	lpphy_set_deaf(dev, false);
+	if (noise)
+		ret = lpphy_calc_rx_iq_comp(dev, 0xFFF0);
+	else {
+		lpphy_start_tx_tone(dev, 4000, 100);
+		ret = lpphy_calc_rx_iq_comp(dev, 0x4000);
+		lpphy_stop_tx_tone(dev);
+	}
+	lpphy_clear_deaf(dev, false);
+	b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_0, 0xFFFC);
+	b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_0, 0xFFF7);
+	b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_0, 0xFFDF);
+	if (!noise) {
+		if (tmp)
+			lpphy_set_tx_gains(dev, oldgains);
+		else
+			lpphy_disable_tx_gain_override(dev);
+	}
+	lpphy_disable_rx_gain_override(dev);
+	b43_phy_mask(dev, B43_LPPHY_AFE_CTL_OVR, 0xFFFE);
+	b43_phy_mask(dev, B43_LPPHY_AFE_CTL_OVRVAL, 0xF7FF);
+	return ret;
+}
+
+static void lpphy_calibration(struct b43_wldev *dev)
+{
+	struct b43_phy_lp *lpphy = dev->phy.lp;
+	enum b43_lpphy_txpctl_mode saved_pctl_mode;
+	bool full_cal = false;
+
+	if (lpphy->full_calib_chan != lpphy->channel) {
+		full_cal = true;
+		lpphy->full_calib_chan = lpphy->channel;
+	}
+
+	b43_mac_suspend(dev);
+
+	lpphy_btcoex_override(dev);
+	if (dev->phy.rev >= 2)
+		lpphy_save_dig_flt_state(dev);
+	lpphy_read_tx_pctl_mode_from_hardware(dev);
+	saved_pctl_mode = lpphy->txpctl_mode;
+	lpphy_set_tx_power_control(dev, B43_LPPHY_TXPCTL_OFF);
+	//TODO Perform transmit power table I/Q LO calibration
+	if ((dev->phy.rev == 0) && (saved_pctl_mode != B43_LPPHY_TXPCTL_OFF))
+		lpphy_pr41573_workaround(dev);
+	if ((dev->phy.rev >= 2) && full_cal) {
+		lpphy_papd_cal_txpwr(dev);
+	}
+	lpphy_set_tx_power_control(dev, saved_pctl_mode);
+	if (dev->phy.rev >= 2)
+		lpphy_restore_dig_flt_state(dev);
+	lpphy_rx_iq_cal(dev, true, true, false, false, NULL);
+
+	b43_mac_enable(dev);
+}
+
 static u16 b43_lpphy_op_read(struct b43_wldev *dev, u16 reg)
 {
 	b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
@@ -1539,12 +2081,6 @@ static void b43_lpphy_op_radio_write(struct b43_wldev *dev, u16 reg, u16 value)
 	b43_write16(dev, B43_MMIO_RADIO_DATA_LOW, value);
 }
 
-static void b43_lpphy_op_software_rfkill(struct b43_wldev *dev,
-					 bool blocked)
-{
-	//TODO
-}
-
 struct b206x_channel {
 	u8 channel;
 	u16 freq;
@@ -2010,22 +2546,6 @@ static int lpphy_b2062_tune(struct b43_wldev *dev,
 	return err;
 }
 
-
-/* This was previously called lpphy_japan_filter */
-static void lpphy_set_analog_filter(struct b43_wldev *dev, int channel)
-{
-	struct b43_phy_lp *lpphy = dev->phy.lp;
-	u16 tmp = (channel == 14); //SPEC FIXME check japanwidefilter!
-
-	if (dev->phy.rev < 2) { //SPEC FIXME Isn't this rev0/1-specific?
-		b43_phy_maskset(dev, B43_LPPHY_LP_PHY_CTL, 0xFCFF, tmp << 9);
-		if ((dev->phy.rev == 1) && (lpphy->rc_cap))
-			lpphy_set_rc_cap(dev);
-	} else {
-		b43_radio_write(dev, B2063_TX_BB_SP3, 0x3F);
-	}
-}
-
 static void lpphy_b2063_vco_calib(struct b43_wldev *dev)
 {
 	u16 tmp;
@@ -2210,18 +2730,6 @@ static int b43_lpphy_op_init(struct b43_wldev *dev)
 	return 0;
 }
 
-static void b43_lpphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna)
-{
-	if (dev->phy.rev >= 2)
-		return; // rev2+ doesn't support antenna diversity
-
-	if (B43_WARN_ON(antenna > B43_ANTENNA_AUTO1))
-		return;
-
-	b43_phy_maskset(dev, B43_LPPHY_CRSGAIN_CTL, 0xFFFD, antenna & 0x2);
-	b43_phy_maskset(dev, B43_LPPHY_CRSGAIN_CTL, 0xFFFE, antenna & 0x1);
-}
-
 static void b43_lpphy_op_adjust_txpower(struct b43_wldev *dev)
 {
 	//TODO
@@ -2244,6 +2752,11 @@ void b43_lpphy_op_switch_analog(struct b43_wldev *dev, bool on)
        }
 }
 
+static void b43_lpphy_op_pwork_15sec(struct b43_wldev *dev)
+{
+	//TODO
+}
+
 const struct b43_phy_operations b43_phyops_lp = {
 	.allocate		= b43_lpphy_op_allocate,
 	.free			= b43_lpphy_op_free,
@@ -2261,4 +2774,6 @@ const struct b43_phy_operations b43_phyops_lp = {
 	.set_rx_antenna		= b43_lpphy_op_set_rx_antenna,
 	.recalc_txpower		= b43_lpphy_op_recalc_txpower,
 	.adjust_txpower		= b43_lpphy_op_adjust_txpower,
+	.pwork_15sec		= b43_lpphy_op_pwork_15sec,
+	.pwork_60sec		= lpphy_calibration,
 };

drivers/net/wireless/b43/phy_lp.h

@@ -286,6 +286,7 @@
 #define B43_LPPHY_TR_LOOKUP_6			B43_PHY_OFDM(0xC8) /* TR Lookup 6 */
 #define B43_LPPHY_TR_LOOKUP_7			B43_PHY_OFDM(0xC9) /* TR Lookup 7 */
 #define B43_LPPHY_TR_LOOKUP_8			B43_PHY_OFDM(0xCA) /* TR Lookup 8 */
+#define B43_LPPHY_RF_PWR_OVERRIDE		B43_PHY_OFDM(0xD3) /* RF power override */
 
 
 
@@ -871,12 +872,12 @@ struct b43_phy_lp {
 	u8 rssi_gs;
 
 	/* RC cap */
-	u8 rc_cap; /* FIXME initial value? */
+	u8 rc_cap;
 	/* BX arch */
 	u8 bx_arch;
 
 	/* Full calibration channel */
-	u8 full_calib_chan; /* FIXME initial value? */
+	u8 full_calib_chan;
 
 	/* Transmit iqlocal best coeffs */
 	bool tx_iqloc_best_coeffs_valid;
@@ -891,6 +892,12 @@ struct b43_phy_lp {
 
 	/* The channel we are tuned to */
 	u8 channel;
+
+	/* The active antenna diversity mode */
+	int antenna;
+
+	/* Frequency of the active TX tone */
+	int tx_tone_freq;
 };
 
 enum tssi_mux_mode {