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b43: LP-PHY: Update baseband init for recent spec changes
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The spec had some nasty typos, and a large part of the rev0/1 BB
init procedure was also missing. Fix these.

Also make the init-time channel switch debuggable.

(The change from -EINVAL to -EIO is simply to make it possible
to distinguish the PLL charge pump error from a channel-not-found
error.)

Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Gábor Stefanik authored and John W. Linville committed Aug 20, 2009
1 parent 826ee70 commit 96909e9
Showing 1 changed file with 68 additions and 5 deletions.
73 changes: 68 additions & 5 deletions drivers/net/wireless/b43/phy_lp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -204,8 +204,62 @@ static void lpphy_table_init(struct b43_wldev *dev)
static void lpphy_baseband_rev0_1_init(struct b43_wldev *dev)
{
struct ssb_bus *bus = dev->dev->bus;
struct b43_phy_lp *lpphy = dev->phy.lp;
u16 tmp, tmp2;

b43_phy_mask(dev, B43_LPPHY_AFE_DAC_CTL, 0xF7FF);
b43_phy_write(dev, B43_LPPHY_AFE_CTL, 0);
b43_phy_write(dev, B43_LPPHY_AFE_CTL_OVR, 0);
b43_phy_write(dev, B43_LPPHY_RF_OVERRIDE_0, 0);
b43_phy_write(dev, B43_LPPHY_RF_OVERRIDE_2, 0);
b43_phy_set(dev, B43_LPPHY_AFE_DAC_CTL, 0x0004);
b43_phy_maskset(dev, B43_LPPHY_OFDMSYNCTHRESH0, 0xFF00, 0x0078);
b43_phy_maskset(dev, B43_LPPHY_CLIPCTRTHRESH, 0x83FF, 0x5800);
b43_phy_write(dev, B43_LPPHY_ADC_COMPENSATION_CTL, 0x0016);
b43_phy_maskset(dev, B43_LPPHY_AFE_ADC_CTL_0, 0xFFF8, 0x0004);
b43_phy_maskset(dev, B43_LPPHY_VERYLOWGAINDB, 0x00FF, 0x5400);
b43_phy_maskset(dev, B43_LPPHY_HIGAINDB, 0x00FF, 0x2400);
b43_phy_maskset(dev, B43_LPPHY_LOWGAINDB, 0x00FF, 0x2100);
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_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);
b43_phy_maskset(dev, B43_LPPHY_CRS_ED_THRESH, 0x00FF, 0xAD00);
b43_phy_maskset(dev, B43_LPPHY_INPUT_PWRDB,
0xFF00, lpphy->rx_pwr_offset);
if ((bus->sprom.boardflags_lo & B43_BFL_FEM) &&
((b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ) ||
(bus->sprom.boardflags_hi & B43_BFH_PAREF))) {
/* 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
* Call sb_pmu_paref_ldo_enable with argument TRUE
*/
if (dev->phy.rev == 0) {
b43_phy_maskset(dev, B43_LPPHY_LP_RF_SIGNAL_LUT,
0xFFCF, 0x0010);
}
b43_lptab_write(dev, B43_LPTAB16(11, 7), 60);
} else {
//TODO: Call ssb_pmu_paref_ldo_enable with argument FALSE
b43_phy_maskset(dev, B43_LPPHY_LP_RF_SIGNAL_LUT,
0xFFCF, 0x0020);
b43_lptab_write(dev, B43_LPTAB16(11, 7), 100);
}
tmp = lpphy->rssi_vf | lpphy->rssi_vc << 4 | 0xA000;
b43_phy_write(dev, B43_LPPHY_AFE_RSSI_CTL_0, tmp);
if (bus->sprom.boardflags_hi & B43_BFH_RSSIINV)
b43_phy_maskset(dev, B43_LPPHY_AFE_RSSI_CTL_1, 0xF000, 0x0AAA);
else
b43_phy_maskset(dev, B43_LPPHY_AFE_RSSI_CTL_1, 0xF000, 0x02AA);
b43_lptab_write(dev, B43_LPTAB16(11, 1), 24);
b43_phy_maskset(dev, B43_LPPHY_RX_RADIO_CTL,
0xFFF9, (lpphy->bx_arch << 1));
if (dev->phy.rev == 1 &&
(bus->sprom.boardflags_hi & B43_BFH_FEM_BT)) {
b43_phy_maskset(dev, B43_LPPHY_TR_LOOKUP_1, 0xFFC0, 0x000A);
Expand Down Expand Up @@ -255,7 +309,7 @@ static void lpphy_baseband_rev0_1_init(struct b43_wldev *dev)
b43_phy_maskset(dev, B43_LPPHY_TR_LOOKUP_4, 0xFFC0, 0x0006);
b43_phy_maskset(dev, B43_LPPHY_TR_LOOKUP_4, 0xC0FF, 0x0700);
}
if (dev->phy.rev == 1) {
if (dev->phy.rev == 1 && (bus->sprom.boardflags_hi & B43_BFH_PAREF)) {
b43_phy_copy(dev, B43_LPPHY_TR_LOOKUP_5, B43_LPPHY_TR_LOOKUP_1);
b43_phy_copy(dev, B43_LPPHY_TR_LOOKUP_6, B43_LPPHY_TR_LOOKUP_2);
b43_phy_copy(dev, B43_LPPHY_TR_LOOKUP_7, B43_LPPHY_TR_LOOKUP_3);
Expand All @@ -267,6 +321,7 @@ static void lpphy_baseband_rev0_1_init(struct b43_wldev *dev)
b43_phy_set(dev, B43_LPPHY_CRSGAIN_CTL, 0x0006);
b43_phy_write(dev, B43_LPPHY_GPIO_SELECT, 0x0005);
b43_phy_write(dev, B43_LPPHY_GPIO_OUTEN, 0xFFFF);
//FIXME the Broadcom driver caches & delays this HF write!
b43_hf_write(dev, b43_hf_read(dev) | B43_HF_PR45960W);
}
if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
Expand Down Expand Up @@ -384,7 +439,7 @@ static void lpphy_baseband_rev2plus_init(struct b43_wldev *dev)
b43_phy_maskset(dev, B43_LPPHY_PWR_THRESH1, 0xFFF0, 0x9);
b43_phy_mask(dev, B43_LPPHY_GAINDIRECTMISMATCH, ~0xF);
b43_phy_maskset(dev, B43_LPPHY_VERYLOWGAINDB, 0x00FF, 0x5500);
b43_phy_maskset(dev, B43_LPPHY_CLIPCTRTHRESH, 0xF81F, 0xA0);
b43_phy_maskset(dev, B43_LPPHY_CLIPCTRTHRESH, 0xFC1F, 0xA0);
b43_phy_maskset(dev, B43_LPPHY_GAINDIRECTMISMATCH, 0xE0FF, 0x300);
b43_phy_maskset(dev, B43_LPPHY_HIGAINDB, 0x00FF, 0x2A00);
if ((bus->chip_id == 0x4325) && (bus->chip_rev == 0)) {
Expand All @@ -405,7 +460,7 @@ static void lpphy_baseband_rev2plus_init(struct b43_wldev *dev)
b43_phy_maskset(dev, B43_LPPHY_CLIPCTRTHRESH, 0xFFE0, 0x12);
b43_phy_maskset(dev, B43_LPPHY_GAINMISMATCH, 0x0FFF, 0x9000);

if ((bus->chip_id == 0x4325) && (bus->chip_rev == 1)) {
if ((bus->chip_id == 0x4325) && (bus->chip_rev == 0)) {
b43_lptab_write(dev, B43_LPTAB16(0x08, 0x14), 0);
b43_lptab_write(dev, B43_LPTAB16(0x08, 0x12), 0x40);
}
Expand All @@ -416,6 +471,7 @@ static void lpphy_baseband_rev2plus_init(struct b43_wldev *dev)
b43_phy_maskset(dev, B43_LPPHY_SYNCPEAKCNT, 0xFFF8, 0x6);
b43_phy_maskset(dev, B43_LPPHY_MINPWR_LEVEL, 0x00FF, 0x9D00);
b43_phy_maskset(dev, B43_LPPHY_MINPWR_LEVEL, 0xFF00, 0xA1);
b43_phy_mask(dev, B43_LPPHY_IDLEAFTERPKTRXTO, 0x00FF);
} else /* 5GHz */
b43_phy_mask(dev, B43_LPPHY_CRSGAIN_CTL, ~0x40);

Expand Down Expand Up @@ -1883,7 +1939,7 @@ static int lpphy_b2062_tune(struct b43_wldev *dev,
lpphy_b2062_reset_pll_bias(dev);
lpphy_b2062_vco_calib(dev);
if (b43_radio_read(dev, B2062_S_RFPLL_CTL3) & 0x10)
err = -EINVAL;
err = -EIO;
}

b43_radio_mask(dev, B2062_S_RFPLL_CTL14, ~0x04);
Expand Down Expand Up @@ -2068,11 +2124,18 @@ static int b43_lpphy_op_switch_channel(struct b43_wldev *dev,

static int b43_lpphy_op_init(struct b43_wldev *dev)
{
int err;

lpphy_read_band_sprom(dev); //FIXME should this be in prepare_structs?
lpphy_baseband_init(dev);
lpphy_radio_init(dev);
lpphy_calibrate_rc(dev);
b43_lpphy_op_switch_channel(dev, b43_lpphy_op_get_default_chan(dev));
err = b43_lpphy_op_switch_channel(dev,
b43_lpphy_op_get_default_chan(dev));
if (err) {
b43dbg(dev->wl, "Switch to init channel failed, error = %d.\n",
err);
}
lpphy_tx_pctl_init(dev);
lpphy_calibration(dev);
//TODO ACI init
Expand Down

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