From: Michael Buesch <mb@bu3sch.de>
To: "Gábor Stefanik" <netrolller.3d@gmail.com>
Cc: John Linville <linville@tuxdriver.com>,
Larry Finger <Larry.Finger@lwfinger.net>,
Mark Huijgen <mark@huijgen.tk>,
Broadcom Wireless <bcm43xx-dev@lists.berlios.de>,
linux-wireless <linux-wireless@vger.kernel.org>
Subject: Re: [PATCH] b43: Fix and update LP-PHY code
Date: Wed, 26 Aug 2009 22:42:48 +0200 [thread overview]
Message-ID: <200908262242.50729.mb@bu3sch.de> (raw)
In-Reply-To: <1251312686-32067-2-git-send-email-netrolller.3d@gmail.com>
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@gmail.com>
> ---
> 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.
next prev parent reply other threads:[~2009-08-26 20:42 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-26 18:51 [PATCH v2] b43: LP-PHY: Fix and simplify Qdiv roundup Gábor Stefanik
2009-08-26 18:51 ` [PATCH] b43: Fix and update LP-PHY code Gábor Stefanik
2009-08-26 18:51 ` [PATCH] ssb: Implement PMU LDO control and use it in b43 Gábor Stefanik
2009-08-26 20:46 ` Michael Buesch
2009-08-26 20:42 ` Michael Buesch [this message]
2009-08-26 20:47 ` [PATCH] b43: Fix and update LP-PHY code Gábor Stefanik
2009-08-26 20:49 ` Michael Buesch
2009-08-26 20:54 ` John W. Linville
2009-08-26 21:03 ` Michael Buesch
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