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Re: [PATCH] b43: Fix and update LP-PHY code

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On Wednesday 26 August 2009 20:51:25 Gábor Stefanik wrote:
> -Fix a few nasty typos (b43_phy_* operations instead of b43_radio_*)
>  in the channel tune routines.
> -Fix some typos & spec errors found by MMIO tracing.
> -Optimize b43_phy_write & b43_phy_mask/set/maskset to use
>  only the minimal number of MMIO accesses. (Write is possible
>  using a single 32-bit MMIO write, while set/mask/maskset can
>  be done in 3 16-bit MMIOs).

Why does it matter? PHY access is not done in any hotpath. So why
not prefer simple code over optimized code? 

> -Set the default channel back to 1, as the bug forcing us to use
>  channel 7 is now fixed.

And, everything in its own patch, please. I don't see a reason for
patching unrelated things in one big patch.

> 
> With this, the device comes up, scans, associates, transmits,
> receives, monitors and injects on all channels - in other words,
> it's fully functional. Sensitivity and TX power are still sub-optimal,
> due to the lack of calibration (that's next on my list).
> 
> Signed-off-by: Gábor Stefanik <netrolller.3d@xxxxxxxxx>
> ---
>  drivers/net/wireless/b43/phy_common.c   |   27 +++++++--
>  drivers/net/wireless/b43/phy_common.h   |    3 +
>  drivers/net/wireless/b43/phy_lp.c       |   91 +++++++++++++++++--------------
>  drivers/net/wireless/b43/phy_lp.h       |    3 +
>  drivers/net/wireless/b43/tables_lpphy.c |   79 +++++++++++++++------------
>  5 files changed, 122 insertions(+), 81 deletions(-)
> 
> diff --git a/drivers/net/wireless/b43/phy_common.c b/drivers/net/wireless/b43/phy_common.c
> index 51686ec..6e704be 100644
> --- a/drivers/net/wireless/b43/phy_common.c
> +++ b/drivers/net/wireless/b43/phy_common.c
> @@ -249,20 +249,35 @@ void b43_phy_copy(struct b43_wldev *dev, u16 destreg, u16 srcreg)
>  
>  void b43_phy_mask(struct b43_wldev *dev, u16 offset, u16 mask)
>  {
> -	b43_phy_write(dev, offset,
> -		      b43_phy_read(dev, offset) & mask);
> +	if (dev->phy.ops->phy_maskset) {
> +		assert_mac_suspended(dev);
> +		dev->phy.ops->phy_maskset(dev, offset, mask, 0);
> +	} else {
> +		b43_phy_write(dev, offset,
> +			      b43_phy_read(dev, offset) & mask);
> +	}
>  }
>  
>  void b43_phy_set(struct b43_wldev *dev, u16 offset, u16 set)
>  {
> -	b43_phy_write(dev, offset,
> -		      b43_phy_read(dev, offset) | set);
> +	if (dev->phy.ops->phy_maskset) {
> +		assert_mac_suspended(dev);
> +		dev->phy.ops->phy_maskset(dev, offset, 0xFFFF, set);
> +	} else {
> +		b43_phy_write(dev, offset,
> +			      b43_phy_read(dev, offset) | set);
> +	}
>  }
>  
>  void b43_phy_maskset(struct b43_wldev *dev, u16 offset, u16 mask, u16 set)
>  {
> -	b43_phy_write(dev, offset,
> -		      (b43_phy_read(dev, offset) & mask) | set);
> +	if (dev->phy.ops->phy_maskset) {
> +		assert_mac_suspended(dev);
> +		dev->phy.ops->phy_maskset(dev, offset, mask, set);
> +	} else {
> +		b43_phy_write(dev, offset,
> +			      (b43_phy_read(dev, offset) & mask) | set);
> +	}
>  }
>  
>  int b43_switch_channel(struct b43_wldev *dev, unsigned int new_channel)
> diff --git a/drivers/net/wireless/b43/phy_common.h b/drivers/net/wireless/b43/phy_common.h
> index 9f9f23c..b47a0f5 100644
> --- a/drivers/net/wireless/b43/phy_common.h
> +++ b/drivers/net/wireless/b43/phy_common.h
> @@ -95,6 +95,8 @@ enum b43_txpwr_result {
>   * 			Must not be NULL.
>   * @phy_write:		Write to a PHY register.
>   * 			Must not be NULL.
> + * @phy_maskset:	Maskset a PHY register, taking shortcuts.
> + *			If it is NULL, a generic algorithm is used.
>   * @radio_read:		Read from a Radio register.
>   * 			Must not be NULL.
>   * @radio_write:	Write to a Radio register.
> @@ -154,6 +156,7 @@ struct b43_phy_operations {
>  	/* Register access */
>  	u16 (*phy_read)(struct b43_wldev *dev, u16 reg);
>  	void (*phy_write)(struct b43_wldev *dev, u16 reg, u16 value);
> +	void (*phy_maskset)(struct b43_wldev *dev, u16 reg, u16 mask, u16 set);
>  	u16 (*radio_read)(struct b43_wldev *dev, u16 reg);
>  	void (*radio_write)(struct b43_wldev *dev, u16 reg, u16 value);
>  
> diff --git a/drivers/net/wireless/b43/phy_lp.c b/drivers/net/wireless/b43/phy_lp.c
> index 5306f2c..1a57d33 100644
> --- a/drivers/net/wireless/b43/phy_lp.c
> +++ b/drivers/net/wireless/b43/phy_lp.c
> @@ -44,7 +44,7 @@ static inline u16 channel2freq_lp(u8 channel)
>  static unsigned int b43_lpphy_op_get_default_chan(struct b43_wldev *dev)
>  {
>  	if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
> -		return 7; //FIXME temporary - channel 1 is broken
> +		return 1;
>  	return 36;
>  }
>  
> @@ -182,8 +182,8 @@ static void lpphy_adjust_gain_table(struct b43_wldev *dev, u32 freq)
>  	temp[1] = temp[0] + 0x1000;
>  	temp[2] = temp[0] + 0x2000;
>  
> -	b43_lptab_write_bulk(dev, B43_LPTAB16(12, 0), 3, temp);
>  	b43_lptab_write_bulk(dev, B43_LPTAB16(13, 0), 3, temp);
> +	b43_lptab_write_bulk(dev, B43_LPTAB16(12, 0), 3, temp);
>  }
>  
>  static void lpphy_table_init(struct b43_wldev *dev)
> @@ -223,8 +223,8 @@ static void lpphy_baseband_rev0_1_init(struct b43_wldev *dev)
>  	b43_phy_maskset(dev, B43_LPPHY_VERYLOWGAINDB, 0xFF00, 0x0006);
>  	b43_phy_mask(dev, B43_LPPHY_RX_RADIO_CTL, 0xFFFE);
>  	b43_phy_maskset(dev, B43_LPPHY_CLIPCTRTHRESH, 0xFFE0, 0x0005);
> -	b43_phy_maskset(dev, B43_LPPHY_CLIPCTRTHRESH, 0xFC10, 0x0180);
> -	b43_phy_maskset(dev, B43_LPPHY_CLIPCTRTHRESH, 0x83FF, 0x3800);
> +	b43_phy_maskset(dev, B43_LPPHY_CLIPCTRTHRESH, 0xFC1F, 0x0180);
> +	b43_phy_maskset(dev, B43_LPPHY_CLIPCTRTHRESH, 0x83FF, 0x3C00);
>  	b43_phy_maskset(dev, B43_LPPHY_GAINDIRECTMISMATCH, 0xFFF0, 0x0005);
>  	b43_phy_maskset(dev, B43_LPPHY_GAIN_MISMATCH_LIMIT, 0xFFC0, 0x001A);
>  	b43_phy_maskset(dev, B43_LPPHY_CRS_ED_THRESH, 0xFF00, 0x00B3);
> @@ -237,7 +237,7 @@ static void lpphy_baseband_rev0_1_init(struct b43_wldev *dev)
>  		/* TODO:
>  		 * Set the LDO voltage to 0x0028 - FIXME: What is this?
>  		 * Call sb_pmu_set_ldo_voltage with 4 and the LDO voltage
> -		 * 	as arguments
> +		 *      as arguments
>  		 * Call sb_pmu_paref_ldo_enable with argument TRUE
>  		 */
>  		if (dev->phy.rev == 0) {
> @@ -340,11 +340,11 @@ static void lpphy_baseband_rev0_1_init(struct b43_wldev *dev)
>  	if (dev->phy.rev == 1) {
>  		tmp = b43_phy_read(dev, B43_LPPHY_CLIPCTRTHRESH);
>  		tmp2 = (tmp & 0x03E0) >> 5;
> -		tmp2 |= tmp << 5;
> +		tmp2 |= tmp2 << 5;
>  		b43_phy_write(dev, B43_LPPHY_4C3, tmp2);
> -		tmp = b43_phy_read(dev, B43_LPPHY_OFDMSYNCTHRESH0);
> +		tmp = b43_phy_read(dev, B43_LPPHY_GAINDIRECTMISMATCH);
>  		tmp2 = (tmp & 0x1F00) >> 8;
> -		tmp2 |= tmp << 5;
> +		tmp2 |= tmp2 << 5;
>  		b43_phy_write(dev, B43_LPPHY_4C4, tmp2);
>  		tmp = b43_phy_read(dev, B43_LPPHY_VERYLOWGAINDB);
>  		tmp2 = tmp & 0x00FF;
> @@ -761,7 +761,7 @@ static void lpphy_disable_crs(struct b43_wldev *dev, bool user)
>  	b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x3);
>  	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_0, 0xFFF7);
> +	b43_phy_mask(dev, B43_LPPHY_RF_OVERRIDE_VAL_0, 0xFFF7);
>  	b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x8);
>  	b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_VAL_0, 0x10);
>  	b43_phy_set(dev, B43_LPPHY_RF_OVERRIDE_0, 0x10);
> @@ -956,7 +956,7 @@ static void lpphy_run_ddfs(struct b43_wldev *dev, int i_on, int q_on,
>  	b43_phy_maskset(dev, B43_LPPHY_AFE_DDFS, 0xFF9F, scale_idx << 5);
>  	b43_phy_mask(dev, B43_LPPHY_AFE_DDFS, 0xFFFB);
>  	b43_phy_set(dev, B43_LPPHY_AFE_DDFS, 0x2);
> -	b43_phy_set(dev, B43_LPPHY_AFE_DDFS, 0x20);
> +	b43_phy_set(dev, B43_LPPHY_LP_PHY_CTL, 0x20);
>  }
>  
>  static bool lpphy_rx_iq_est(struct b43_wldev *dev, u16 samples, u8 time,
> @@ -968,7 +968,7 @@ static bool lpphy_rx_iq_est(struct b43_wldev *dev, u16 samples, u8 time,
>  	b43_phy_write(dev, B43_LPPHY_IQ_NUM_SMPLS_ADDR, samples);
>  	b43_phy_maskset(dev, B43_LPPHY_IQ_ENABLE_WAIT_TIME_ADDR, 0xFF00, time);
>  	b43_phy_mask(dev, B43_LPPHY_IQ_ENABLE_WAIT_TIME_ADDR, 0xFEFF);
> -	b43_phy_set(dev, B43_LPPHY_IQ_ENABLE_WAIT_TIME_ADDR, 0xFDFF);
> +	b43_phy_set(dev, B43_LPPHY_IQ_ENABLE_WAIT_TIME_ADDR, 0x200);
>  
>  	for (i = 0; i < 500; i++) {
>  		if (!(b43_phy_read(dev,
> @@ -1135,9 +1135,9 @@ static void lpphy_set_tx_power_control(struct b43_wldev *dev,
>  	}
>  	if (dev->phy.rev >= 2) {
>  		if (mode == B43_LPPHY_TXPCTL_HW)
> -			b43_phy_maskset(dev, B43_PHY_OFDM(0xD0), 0xFD, 0x2);
> +			b43_phy_set(dev, B43_PHY_OFDM(0xD0), 0x2);
>  		else
> -			b43_phy_maskset(dev, B43_PHY_OFDM(0xD0), 0xFD, 0);
> +			b43_phy_mask(dev, B43_PHY_OFDM(0xD0), 0xFFFD);
>  	}
>  	lpphy_write_tx_pctl_mode_to_hardware(dev);
>  }
> @@ -1169,7 +1169,7 @@ static void lpphy_rev0_1_rc_calib(struct b43_wldev *dev)
>  	err = b43_lpphy_op_switch_channel(dev, 7);
>  	if (err) {
>  		b43dbg(dev->wl,
> -		       "RC calib: Failed to switch to channel 7, error = %d",
> +		       "RC calib: Failed to switch to channel 7, error = %d\n",
>  		       err);
>  	}
>  	old_txg_ovr = !!(b43_phy_read(dev, B43_LPPHY_AFE_CTL_OVR) & 0x40);
> @@ -1500,8 +1500,15 @@ static u16 b43_lpphy_op_read(struct b43_wldev *dev, u16 reg)
>  
>  static void b43_lpphy_op_write(struct b43_wldev *dev, u16 reg, u16 value)
>  {
> +	b43_write32(dev, B43_MMIO_PHY_CONTROL, ((u32)value << 16) | reg);
> +}
> +
> +static void b43_lpphy_op_maskset(struct b43_wldev *dev, u16 reg, u16 mask,
> +				 u16 set)
> +{
>  	b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
> -	b43_write16(dev, B43_MMIO_PHY_DATA, value);
> +	b43_write16(dev, B43_MMIO_PHY_DATA,
> +		    (b43_read16(dev, B43_MMIO_PHY_DATA) & mask) | set);
>  }
>  
>  static u16 b43_lpphy_op_radio_read(struct b43_wldev *dev, u16 reg)
> @@ -1920,8 +1927,8 @@ static void lpphy_b2062_reset_pll_bias(struct b43_wldev *dev)
>  
>  static void lpphy_b2062_vco_calib(struct b43_wldev *dev)
>  {
> -	b43_phy_write(dev, B2062_S_RFPLL_CTL21, 0x42);
> -	b43_phy_write(dev, B2062_S_RFPLL_CTL21, 0x62);
> +	b43_radio_write(dev, B2062_S_RFPLL_CTL21, 0x42);
> +	b43_radio_write(dev, B2062_S_RFPLL_CTL21, 0x62);
>  	udelay(200);
>  }
>  
> @@ -1980,7 +1987,7 @@ static int lpphy_b2062_tune(struct b43_wldev *dev,
>  	tmp6 = tmp5 / tmp4;
>  	tmp7 = tmp5 % tmp4;
>  	b43_radio_write(dev, B2062_S_RFPLL_CTL29, tmp6 + ((2 * tmp7) / tmp4));
> -	tmp8 = b43_phy_read(dev, B2062_S_RFPLL_CTL19);
> +	tmp8 = b43_radio_read(dev, B2062_S_RFPLL_CTL19);
>  	tmp9 = ((2 * tmp3 * (tmp8 + 1)) + (3 * tmp1)) / (6 * tmp1);
>  	b43_radio_write(dev, B2062_S_RFPLL_CTL23, (tmp9 >> 8) + 16);
>  	b43_radio_write(dev, B2062_S_RFPLL_CTL24, tmp9 & 0xFF);
> @@ -2019,17 +2026,17 @@ static void lpphy_b2063_vco_calib(struct b43_wldev *dev)
>  {
>  	u16 tmp;
>  
> -	b43_phy_mask(dev, B2063_PLL_SP1, ~0x40);
> -	tmp = b43_phy_read(dev, B2063_PLL_JTAG_CALNRST) & 0xF8;
> -	b43_phy_write(dev, B2063_PLL_JTAG_CALNRST, tmp);
> +	b43_radio_mask(dev, B2063_PLL_SP1, ~0x40);
> +	tmp = b43_radio_read(dev, B2063_PLL_JTAG_CALNRST) & 0xF8;
> +	b43_radio_write(dev, B2063_PLL_JTAG_CALNRST, tmp);
>  	udelay(1);
> -	b43_phy_write(dev, B2063_PLL_JTAG_CALNRST, tmp | 0x4);
> +	b43_radio_write(dev, B2063_PLL_JTAG_CALNRST, tmp | 0x4);
>  	udelay(1);
> -	b43_phy_write(dev, B2063_PLL_JTAG_CALNRST, tmp | 0x6);
> +	b43_radio_write(dev, B2063_PLL_JTAG_CALNRST, tmp | 0x6);
>  	udelay(1);
> -	b43_phy_write(dev, B2063_PLL_JTAG_CALNRST, tmp | 0x7);
> +	b43_radio_write(dev, B2063_PLL_JTAG_CALNRST, tmp | 0x7);
>  	udelay(300);
> -	b43_phy_set(dev, B2063_PLL_SP1, 0x40);
> +	b43_radio_set(dev, B2063_PLL_SP1, 0x40);
>  }
>  
>  static int lpphy_b2063_tune(struct b43_wldev *dev,
> @@ -2124,31 +2131,31 @@ static int lpphy_b2063_tune(struct b43_wldev *dev,
>  		scale = 0;
>  		tmp5 = ((tmp4 + (tmp3 >> 1)) / tmp3) - 8;
>  	}
> -	b43_phy_maskset(dev, B2063_PLL_JTAG_PLL_CP2, 0xFFC0, tmp5);
> -	b43_phy_maskset(dev, B2063_PLL_JTAG_PLL_CP2, 0xFFBF, scale << 6);
> +	b43_radio_maskset(dev, B2063_PLL_JTAG_PLL_CP2, 0xFFC0, tmp5);
> +	b43_radio_maskset(dev, B2063_PLL_JTAG_PLL_CP2, 0xFFBF, scale << 6);
>  
>  	tmp6 = lpphy_qdiv_roundup(100 * val1, val3, 16);
>  	tmp6 *= (tmp5 * 8) * (scale + 1);
>  	if (tmp6 > 150)
>  		tmp6 = 0;
>  
> -	b43_phy_maskset(dev, B2063_PLL_JTAG_PLL_CP3, 0xFFE0, tmp6);
> -	b43_phy_maskset(dev, B2063_PLL_JTAG_PLL_CP3, 0xFFDF, scale << 5);
> +	b43_radio_maskset(dev, B2063_PLL_JTAG_PLL_CP3, 0xFFE0, tmp6);
> +	b43_radio_maskset(dev, B2063_PLL_JTAG_PLL_CP3, 0xFFDF, scale << 5);
>  
> -	b43_phy_maskset(dev, B2063_PLL_JTAG_PLL_XTAL_12, 0xFFFB, 0x4);
> +	b43_radio_maskset(dev, B2063_PLL_JTAG_PLL_XTAL_12, 0xFFFB, 0x4);
>  	if (crystal_freq > 26000000)
> -		b43_phy_set(dev, B2063_PLL_JTAG_PLL_XTAL_12, 0x2);
> +		b43_radio_set(dev, B2063_PLL_JTAG_PLL_XTAL_12, 0x2);
>  	else
> -		b43_phy_mask(dev, B2063_PLL_JTAG_PLL_XTAL_12, 0xFD);
> +		b43_radio_mask(dev, B2063_PLL_JTAG_PLL_XTAL_12, 0xFD);
>  
>  	if (val1 == 45)
> -		b43_phy_set(dev, B2063_PLL_JTAG_PLL_VCO1, 0x2);
> +		b43_radio_set(dev, B2063_PLL_JTAG_PLL_VCO1, 0x2);
>  	else
> -		b43_phy_mask(dev, B2063_PLL_JTAG_PLL_VCO1, 0xFD);
> +		b43_radio_mask(dev, B2063_PLL_JTAG_PLL_VCO1, 0xFD);
>  
> -	b43_phy_set(dev, B2063_PLL_SP2, 0x3);
> +	b43_radio_set(dev, B2063_PLL_SP2, 0x3);
>  	udelay(1);
> -	b43_phy_mask(dev, B2063_PLL_SP2, 0xFFFC);
> +	b43_radio_mask(dev, B2063_PLL_SP2, 0xFFFC);
>  	lpphy_b2063_vco_calib(dev);
>  	b43_radio_write(dev, B2063_COMM15, old_comm15);
>  
> @@ -2158,10 +2165,9 @@ static int lpphy_b2063_tune(struct b43_wldev *dev,
>  static int b43_lpphy_op_switch_channel(struct b43_wldev *dev,
>  				       unsigned int new_channel)
>  {
> +	struct b43_phy_lp *lpphy = dev->phy.lp;
>  	int err;
>  
> -	b43_write16(dev, B43_MMIO_CHANNEL, new_channel);
> -
>  	if (dev->phy.radio_ver == 0x2063) {
>  		err = lpphy_b2063_tune(dev, new_channel);
>  		if (err)
> @@ -2174,6 +2180,9 @@ static int b43_lpphy_op_switch_channel(struct b43_wldev *dev,
>  		lpphy_adjust_gain_table(dev, channel2freq_lp(new_channel));
>  	}
>  
> +	lpphy->channel = new_channel;
> +	b43_write16(dev, B43_MMIO_CHANNEL, new_channel);
> +
>  	return 0;
>  }
>  
> @@ -2185,10 +2194,9 @@ static int b43_lpphy_op_init(struct b43_wldev *dev)
>  	lpphy_baseband_init(dev);
>  	lpphy_radio_init(dev);
>  	lpphy_calibrate_rc(dev);
> -	err = b43_lpphy_op_switch_channel(dev,
> -				b43_lpphy_op_get_default_chan(dev));
> +	err = b43_lpphy_op_switch_channel(dev, 7);
>  	if (err) {
> -		b43dbg(dev->wl, "Switch to init channel failed, error = %d.\n",
> +		b43dbg(dev->wl, "Switch to channel 7 failed, error = %d.\n",
>  		       err);
>  	}
>  	lpphy_tx_pctl_init(dev);
> @@ -2222,6 +2230,7 @@ const struct b43_phy_operations b43_phyops_lp = {
>  	.init			= b43_lpphy_op_init,
>  	.phy_read		= b43_lpphy_op_read,
>  	.phy_write		= b43_lpphy_op_write,
> +	.phy_maskset		= b43_lpphy_op_maskset,
>  	.radio_read		= b43_lpphy_op_radio_read,
>  	.radio_write		= b43_lpphy_op_radio_write,
>  	.software_rfkill	= b43_lpphy_op_software_rfkill,
> diff --git a/drivers/net/wireless/b43/phy_lp.h b/drivers/net/wireless/b43/phy_lp.h
> index e158d1f..c3232c1 100644
> --- a/drivers/net/wireless/b43/phy_lp.h
> +++ b/drivers/net/wireless/b43/phy_lp.h
> @@ -888,6 +888,9 @@ struct b43_phy_lp {
>  	bool crs_usr_disable, crs_sys_disable;
>  
>  	unsigned int pdiv;
> +
> +	/* The channel we are tuned to */
> +	u8 channel;
>  };
>  
>  enum tssi_mux_mode {
> diff --git a/drivers/net/wireless/b43/tables_lpphy.c b/drivers/net/wireless/b43/tables_lpphy.c
> index 60d472f..c784def 100644
> --- a/drivers/net/wireless/b43/tables_lpphy.c
> +++ b/drivers/net/wireless/b43/tables_lpphy.c
> @@ -624,30 +624,35 @@ u32 b43_lptab_read(struct b43_wldev *dev, u32 offset)
>  void b43_lptab_read_bulk(struct b43_wldev *dev, u32 offset,
>  			 unsigned int nr_elements, void *_data)
>  {
> -	u32 type, value;
> +	u32 type;
>  	u8 *data = _data;
>  	unsigned int i;
>  
>  	type = offset & B43_LPTAB_TYPEMASK;
> +	offset &= ~B43_LPTAB_TYPEMASK;
> +	B43_WARN_ON(offset > 0xFFFF);
> +
> +	b43_phy_write(dev, B43_LPPHY_TABLE_ADDR, offset);
> +
>  	for (i = 0; i < nr_elements; i++) {
> -		value = b43_lptab_read(dev, offset);
>  		switch (type) {
>  		case B43_LPTAB_8BIT:
> -			*data = value;
> +			*data = b43_phy_read(dev, B43_LPPHY_TABLEDATALO) & 0xFF;
>  			data++;
>  			break;
>  		case B43_LPTAB_16BIT:
> -			*((u16 *)data) = value;
> +			*((u16 *)data) = b43_phy_read(dev, B43_LPPHY_TABLEDATALO);
>  			data += 2;
>  			break;
>  		case B43_LPTAB_32BIT:
> -			*((u32 *)data) = value;
> +			*((u32 *)data) = b43_phy_read(dev, B43_LPPHY_TABLEDATAHI);
> +			*((u32 *)data) <<= 16;
> +			*((u32 *)data) |= b43_phy_read(dev, B43_LPPHY_TABLEDATALO);
>  			data += 4;
>  			break;
>  		default:
>  			B43_WARN_ON(1);
>  		}
> -		offset++;
>  	}
>  }
>  
> @@ -688,26 +693,34 @@ void b43_lptab_write_bulk(struct b43_wldev *dev, u32 offset,
>  	unsigned int i;
>  
>  	type = offset & B43_LPTAB_TYPEMASK;
> +	offset &= ~B43_LPTAB_TYPEMASK;
> +	B43_WARN_ON(offset > 0xFFFF);
> +
> +	b43_phy_write(dev, B43_LPPHY_TABLE_ADDR, offset);
> +
>  	for (i = 0; i < nr_elements; i++) {
>  		switch (type) {
>  		case B43_LPTAB_8BIT:
>  			value = *data;
>  			data++;
> +			B43_WARN_ON(value & ~0xFF);
> +			b43_phy_write(dev, B43_LPPHY_TABLEDATALO, value);
>  			break;
>  		case B43_LPTAB_16BIT:
>  			value = *((u16 *)data);
>  			data += 2;
> +			B43_WARN_ON(value & ~0xFFFF);
> +			b43_phy_write(dev, B43_LPPHY_TABLEDATALO, value);
>  			break;
>  		case B43_LPTAB_32BIT:
>  			value = *((u32 *)data);
>  			data += 4;
> +			b43_phy_write(dev, B43_LPPHY_TABLEDATAHI, value >> 16);
> +			b43_phy_write(dev, B43_LPPHY_TABLEDATALO, value);
>  			break;
>  		default:
>  			B43_WARN_ON(1);
> -			value = 0;
>  		}
> -		b43_lptab_write(dev, offset, value);
> -		offset++;
>  	}
>  }
>  
> @@ -777,7 +790,7 @@ static const u8 lpphy_pll_fraction_table[] = {
>  	0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
>  };
>  
> -static const u16 lpphy_iq_local_table[] = {
> +static const u16 lpphy_iqlo_cal_table[] = {
>  	0x0200, 0x0300, 0x0400, 0x0600, 0x0800, 0x0b00, 0x1000, 0x1001, 0x1002,
>  	0x1003, 0x1004, 0x1005, 0x1006, 0x1007, 0x1707, 0x2007, 0x2d07, 0x4007,
>  	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
> @@ -789,10 +802,17 @@ static const u16 lpphy_iq_local_table[] = {
>  	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
>  	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x4000, 0x0000, 0x0000,
>  	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
> -	0x0000, 0x0000,
> +	0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
>  };
>  
> -static const u16 lpphy_ofdm_cck_gain_table[] = {
> +static const u16 lpphy_rev0_ofdm_cck_gain_table[] = {
> +	0x0001, 0x0001, 0x0001, 0x0001, 0x1001, 0x2001, 0x3001, 0x4001, 0x5001,
> +	0x6001, 0x7001, 0x7011, 0x7021, 0x2035, 0x2045, 0x2055, 0x2065, 0x2075,
> +	0x006d, 0x007d, 0x014d, 0x015d, 0x115d, 0x035d, 0x135d, 0x055d, 0x155d,
> +	0x0d5d, 0x1d5d, 0x2d5d, 0x555d, 0x655d, 0x755d,
> +};
> +
> +static const u16 lpphy_rev1_ofdm_cck_gain_table[] = {
>  	0x5000, 0x6000, 0x7000, 0x0001, 0x1001, 0x2001, 0x3001, 0x4001, 0x5001,
>  	0x6001, 0x7001, 0x7011, 0x7021, 0x2035, 0x2045, 0x2055, 0x2065, 0x2075,
>  	0x006d, 0x007d, 0x014d, 0x015d, 0x115d, 0x035d, 0x135d, 0x055d, 0x155d,
> @@ -2263,11 +2283,18 @@ void lpphy_rev0_1_table_init(struct b43_wldev *dev)
>  	b43_lptab_write_bulk(dev, B43_LPTAB8(6, 0),
>  		ARRAY_SIZE(lpphy_pll_fraction_table), lpphy_pll_fraction_table);
>  	b43_lptab_write_bulk(dev, B43_LPTAB16(0, 0),
> -		ARRAY_SIZE(lpphy_iq_local_table), lpphy_iq_local_table);
> -	b43_lptab_write_bulk(dev, B43_LPTAB16(13, 0),
> -		ARRAY_SIZE(lpphy_ofdm_cck_gain_table), lpphy_ofdm_cck_gain_table);
> -	b43_lptab_write_bulk(dev, B43_LPTAB16(12, 0),
> -		ARRAY_SIZE(lpphy_ofdm_cck_gain_table), lpphy_ofdm_cck_gain_table);
> +		ARRAY_SIZE(lpphy_iqlo_cal_table), lpphy_iqlo_cal_table);
> +	if (dev->phy.rev == 0) {
> +		b43_lptab_write_bulk(dev, B43_LPTAB16(13, 0),
> +			ARRAY_SIZE(lpphy_rev0_ofdm_cck_gain_table), lpphy_rev0_ofdm_cck_gain_table);
> +		b43_lptab_write_bulk(dev, B43_LPTAB16(12, 0),
> +			ARRAY_SIZE(lpphy_rev0_ofdm_cck_gain_table), lpphy_rev0_ofdm_cck_gain_table);
> +	} else {
> +		b43_lptab_write_bulk(dev, B43_LPTAB16(13, 0),
> +			ARRAY_SIZE(lpphy_rev1_ofdm_cck_gain_table), lpphy_rev1_ofdm_cck_gain_table);
> +		b43_lptab_write_bulk(dev, B43_LPTAB16(12, 0),
> +			ARRAY_SIZE(lpphy_rev1_ofdm_cck_gain_table), lpphy_rev1_ofdm_cck_gain_table);
> +}
>  	b43_lptab_write_bulk(dev, B43_LPTAB16(15, 0),
>  		ARRAY_SIZE(lpphy_gain_delta_table), lpphy_gain_delta_table);
>  	b43_lptab_write_bulk(dev, B43_LPTAB32(10, 0),
> @@ -2281,22 +2308,6 @@ void lpphy_rev2plus_table_init(struct b43_wldev *dev)
>  
>  	B43_WARN_ON(dev->phy.rev < 2);
>  
> -	/*
> -	 * FIXME This code follows the specs, but it looks wrong:
> -	 * In each pass, it writes 4 bytes to an offset in table ID 7,
> -	 * then increments the offset by 1 for the next pass. This results
> -	 * in the first 3 bytes of each pass except the first one getting
> -	 * written to a location that has already been zeroed in the previous
> -	 * pass.
> -	 * This is what the vendor driver does, but it still looks suspicious.
> -	 *
> -	 * This should probably suffice:
> -	 *
> -	 * for (i = 0; i < 704; i+=4)
> -	 * 	b43_lptab_write(dev, B43_LPTAB32(7, i), 0)
> -	 *
> -	 * This should be tested once the code is functional.
> -	 */
>  	for (i = 0; i < 704; i++)
>  		b43_lptab_write(dev, B43_LPTAB32(7, i), 0);
>  
> @@ -2323,7 +2334,7 @@ void lpphy_rev2plus_table_init(struct b43_wldev *dev)
>  	b43_lptab_write_bulk(dev, B43_LPTAB8(6, 0),
>  		ARRAY_SIZE(lpphy_pll_fraction_table), lpphy_pll_fraction_table);
>  	b43_lptab_write_bulk(dev, B43_LPTAB16(0, 0),
> -		ARRAY_SIZE(lpphy_iq_local_table), lpphy_iq_local_table);
> +		ARRAY_SIZE(lpphy_iqlo_cal_table), lpphy_iqlo_cal_table);
>  	b43_lptab_write_bulk(dev, B43_LPTAB32(9, 0),
>  		ARRAY_SIZE(lpphy_papd_eps_table), lpphy_papd_eps_table);
>  	b43_lptab_write_bulk(dev, B43_LPTAB32(10, 0),



-- 
Greetings, Michael.
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