b43: N-PHY: rev3+: implement gain ctl workarounds

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 162 insertions, 9 deletions

diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index 6c9aa5a5850a..8a00f9a95dbb 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -1168,23 +1168,98 @@ static void b43_nphy_adjust_lna_gain_table(struct b43_wldev *dev)
 static void b43_nphy_gain_ctrl_workarounds(struct b43_wldev *dev)
 {
         struct b43_phy_n *nphy = dev->phy.n;
+        struct ssb_sprom *sprom = &(dev->dev->bus->sprom);
+
+        /* PHY rev 0, 1, 2 */
         u8 i, j;
         u8 code;
         u16 tmp;
+        u8 rfseq_events[3] = { 6, 8, 7 };
+        u8 rfseq_delays[3] = { 10, 30, 1 };
 
-        /* TODO: for PHY >= 3
-        s8 *lna1_gain, *lna2_gain;
-        u8 *gain_db, *gain_bits;
-        u16 *rfseq_init;
+        /* PHY rev >= 3 */
+        bool ghz5;
+        bool ext_lna;
+        u16 rssi_gain;
+        struct nphy_gain_ctl_workaround_entry *e;
         u8 lpf_gain[6] = { 0x00, 0x06, 0x0C, 0x12, 0x12, 0x12 };
         u8 lpf_bits[6] = { 0, 1, 2, 3, 3, 3 };
-        */
-
-        u8 rfseq_events[3] = { 6, 8, 7 };
-        u8 rfseq_delays[3] = { 10, 30, 1 };
 
         if (dev->phy.rev >= 3) {
-                /* TODO */
+                /* Prepare values */
+                ghz5 = b43_phy_read(dev, B43_NPHY_BANDCTL)
+                        & B43_NPHY_BANDCTL_5GHZ;
+                ext_lna = sprom->boardflags_lo & B43_BFL_EXTLNA;
+                e = b43_nphy_get_gain_ctl_workaround_ent(dev, ghz5, ext_lna);
+                if (ghz5 && dev->phy.rev >= 5)
+                        rssi_gain = 0x90;
+                else
+                        rssi_gain = 0x50;
+
+                b43_phy_set(dev, B43_NPHY_RXCTL, 0x0040);
+
+                /* Set Clip 2 detect */
+                b43_phy_set(dev, B43_NPHY_C1_CGAINI,
+                                B43_NPHY_C1_CGAINI_CL2DETECT);
+                b43_phy_set(dev, B43_NPHY_C2_CGAINI,
+                                B43_NPHY_C2_CGAINI_CL2DETECT);
+
+                b43_radio_write(dev, B2056_RX0 | B2056_RX_BIASPOLE_LNAG1_IDAC,
+                                0x17);
+                b43_radio_write(dev, B2056_RX1 | B2056_RX_BIASPOLE_LNAG1_IDAC,
+                                0x17);
+                b43_radio_write(dev, B2056_RX0 | B2056_RX_LNAG2_IDAC, 0xF0);
+                b43_radio_write(dev, B2056_RX1 | B2056_RX_LNAG2_IDAC, 0xF0);
+                b43_radio_write(dev, B2056_RX0 | B2056_RX_RSSI_POLE, 0x00);
+                b43_radio_write(dev, B2056_RX1 | B2056_RX_RSSI_POLE, 0x00);
+                b43_radio_write(dev, B2056_RX0 | B2056_RX_RSSI_GAIN,
+                                rssi_gain);
+                b43_radio_write(dev, B2056_RX1 | B2056_RX_RSSI_GAIN,
+                                rssi_gain);
+                b43_radio_write(dev, B2056_RX0 | B2056_RX_BIASPOLE_LNAA1_IDAC,
+                                0x17);
+                b43_radio_write(dev, B2056_RX1 | B2056_RX_BIASPOLE_LNAA1_IDAC,
+                                0x17);
+                b43_radio_write(dev, B2056_RX0 | B2056_RX_LNAA2_IDAC, 0xFF);
+                b43_radio_write(dev, B2056_RX1 | B2056_RX_LNAA2_IDAC, 0xFF);
+
+                b43_ntab_write_bulk(dev, B43_NTAB8(0, 8), 4, e->lna1_gain);
+                b43_ntab_write_bulk(dev, B43_NTAB8(1, 8), 4, e->lna1_gain);
+                b43_ntab_write_bulk(dev, B43_NTAB8(0, 16), 4, e->lna2_gain);
+                b43_ntab_write_bulk(dev, B43_NTAB8(1, 16), 4, e->lna2_gain);
+                b43_ntab_write_bulk(dev, B43_NTAB8(0, 32), 10, e->gain_db);
+                b43_ntab_write_bulk(dev, B43_NTAB8(1, 32), 10, e->gain_db);
+                b43_ntab_write_bulk(dev, B43_NTAB8(2, 32), 10, e->gain_bits);
+                b43_ntab_write_bulk(dev, B43_NTAB8(3, 32), 10, e->gain_bits);
+                b43_ntab_write_bulk(dev, B43_NTAB8(0, 0x40), 6, lpf_gain);
+                b43_ntab_write_bulk(dev, B43_NTAB8(1, 0x40), 6, lpf_gain);
+                b43_ntab_write_bulk(dev, B43_NTAB8(2, 0x40), 6, lpf_bits);
+                b43_ntab_write_bulk(dev, B43_NTAB8(3, 0x40), 6, lpf_bits);
+
+                b43_phy_write(dev, B43_NPHY_C1_INITGAIN, e->init_gain);
+                b43_phy_write(dev, 0x2A7, e->init_gain);
+                b43_ntab_write_bulk(dev, B43_NTAB16(7, 0x106), 2,
+                                        e->rfseq_init);
+                b43_phy_write(dev, B43_NPHY_C1_INITGAIN, e->init_gain);
+
+                /* TODO: check defines. Do not match variables names */
+                b43_phy_write(dev, B43_NPHY_C1_CLIP1_MEDGAIN, e->cliphi_gain);
+                b43_phy_write(dev, 0x2A9, e->cliphi_gain);
+                b43_phy_write(dev, B43_NPHY_C1_CLIP2_GAIN, e->clipmd_gain);
+                b43_phy_write(dev, 0x2AB, e->clipmd_gain);
+                b43_phy_write(dev, B43_NPHY_C2_CLIP1_HIGAIN, e->cliplo_gain);
+                b43_phy_write(dev, 0x2AD, e->cliplo_gain);
+
+                b43_phy_maskset(dev, 0x27D, 0xFF00, e->crsmin);
+                b43_phy_maskset(dev, 0x280, 0xFF00, e->crsminl);
+                b43_phy_maskset(dev, 0x283, 0xFF00, e->crsminu);
+                b43_phy_write(dev, B43_NPHY_C1_NBCLIPTHRES, e->nbclip);
+                b43_phy_write(dev, B43_NPHY_C2_NBCLIPTHRES, e->nbclip);
+                b43_phy_maskset(dev, B43_NPHY_C1_CLIPWBTHRES,
+                                ~B43_NPHY_C1_CLIPWBTHRES_CLIP2, e->wlclip);
+                b43_phy_maskset(dev, B43_NPHY_C2_CLIPWBTHRES,
+                                ~B43_NPHY_C2_CLIPWBTHRES_CLIP2, e->wlclip);
+                b43_phy_write(dev, B43_NPHY_CCK_SHIFTB_REF, 0x809C);
         } else {
                 /* Set Clip 2 detect */
                 b43_phy_set(dev, B43_NPHY_C1_CGAINI,
@@ -1308,6 +1383,9 @@ static void b43_nphy_workarounds(struct b43_wldev *dev)
         u8 events2[7] = { 0x0, 0x3, 0x5, 0x4, 0x2, 0x1, 0x8 };
         u8 delays2[7] = { 0x8, 0x6, 0x2, 0x4, 0x4, 0x6, 0x1 };
 
+        u16 tmp16;
+        u32 tmp32;
+
         if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ)
                 b43_nphy_classifier(dev, 1, 0);
         else
@@ -1320,7 +1398,82 @@ static void b43_nphy_workarounds(struct b43_wldev *dev)
                     B43_NPHY_IQFLIP_ADC1 | B43_NPHY_IQFLIP_ADC2);
 
         if (dev->phy.rev >= 3) {
+                tmp32 = b43_ntab_read(dev, B43_NTAB32(30, 0));
+                tmp32 &= 0xffffff;
+                b43_ntab_write(dev, B43_NTAB32(30, 0), tmp32);
+
+                b43_phy_write(dev, B43_NPHY_PHASETR_A0, 0x0125);
+                b43_phy_write(dev, B43_NPHY_PHASETR_A1, 0x01B3);
+                b43_phy_write(dev, B43_NPHY_PHASETR_A2, 0x0105);
+                b43_phy_write(dev, B43_NPHY_PHASETR_B0, 0x016E);
+                b43_phy_write(dev, B43_NPHY_PHASETR_B1, 0x00CD);
+                b43_phy_write(dev, B43_NPHY_PHASETR_B2, 0x0020);
+
+                b43_phy_write(dev, B43_NPHY_C2_CLIP1_MEDGAIN, 0x000C);
+                b43_phy_write(dev, 0x2AE, 0x000C);
+
+                /* TODO */
+
+                tmp16 = (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) ?
+                        0x2 : 0x9C40;
+                b43_phy_write(dev, B43_NPHY_ENDROP_TLEN, tmp16);
+
+                b43_phy_maskset(dev, 0x294, 0xF0FF, 0x0700);
+
+                b43_ntab_write(dev, B43_NTAB32(16, 3), 0x18D);
+                b43_ntab_write(dev, B43_NTAB32(16, 127), 0x18D);
+
+                b43_nphy_gain_ctrl_workarounds(dev);
+
+                b43_ntab_write(dev, B43_NTAB32(8, 0), 2);
+                b43_ntab_write(dev, B43_NTAB32(8, 16), 2);
+
                 /* TODO */
+
+                b43_radio_write(dev, B2056_RX0 | B2056_RX_MIXA_MAST_BIAS, 0x00);
+                b43_radio_write(dev, B2056_RX1 | B2056_RX_MIXA_MAST_BIAS, 0x00);
+                b43_radio_write(dev, B2056_RX0 | B2056_RX_MIXA_BIAS_MAIN, 0x06);
+                b43_radio_write(dev, B2056_RX1 | B2056_RX_MIXA_BIAS_MAIN, 0x06);
+                b43_radio_write(dev, B2056_RX0 | B2056_RX_MIXA_BIAS_AUX, 0x07);
+                b43_radio_write(dev, B2056_RX1 | B2056_RX_MIXA_BIAS_AUX, 0x07);
+                b43_radio_write(dev, B2056_RX0 | B2056_RX_MIXA_LOB_BIAS, 0x88);
+                b43_radio_write(dev, B2056_RX1 | B2056_RX_MIXA_LOB_BIAS, 0x88);
+                b43_radio_write(dev, B2056_RX0 | B2056_RX_MIXG_CMFB_IDAC, 0x00);
+                b43_radio_write(dev, B2056_RX1 | B2056_RX_MIXG_CMFB_IDAC, 0x00);
+
+                /* N PHY WAR TX Chain Update with hw_phytxchain as argument */
+
+                if ((bus->sprom.boardflags2_lo & B43_BFL2_APLL_WAR &&
+                    b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ) ||
+                    (bus->sprom.boardflags2_lo & B43_BFL2_GPLL_WAR &&
+                    b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ))
+                        tmp32 = 0x00088888;
+                else
+                        tmp32 = 0x88888888;
+                b43_ntab_write(dev, B43_NTAB32(30, 1), tmp32);
+                b43_ntab_write(dev, B43_NTAB32(30, 2), tmp32);
+                b43_ntab_write(dev, B43_NTAB32(30, 3), tmp32);
+
+                if (dev->phy.rev == 4 &&
+                    b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ) {
+                        b43_radio_write(dev, B2056_TX0 | B2056_TX_GMBB_IDAC,
+                                        0x70);
+                        b43_radio_write(dev, B2056_TX1 | B2056_TX_GMBB_IDAC,
+                                        0x70);
+                }
+
+                b43_phy_write(dev, 0x224, 0x039C);
+                b43_phy_write(dev, 0x225, 0x0357);
+                b43_phy_write(dev, 0x226, 0x0317);
+                b43_phy_write(dev, 0x227, 0x02D7);
+                b43_phy_write(dev, 0x228, 0x039C);
+                b43_phy_write(dev, 0x229, 0x0357);
+                b43_phy_write(dev, 0x22A, 0x0317);
+                b43_phy_write(dev, 0x22B, 0x02D7);
+                b43_phy_write(dev, 0x22C, 0x039C);
+                b43_phy_write(dev, 0x22D, 0x0357);
+                b43_phy_write(dev, 0x22E, 0x0317);
+                b43_phy_write(dev, 0x22F, 0x02D7);
         } else {
                 if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ &&
                     nphy->band5g_pwrgain) {