Signed-off-by: Rafał Miłecki <zajec5@xxxxxxxxx> --- V2: get rid of warning by casting --- drivers/net/wireless/b43/phy_n.c | 195 +++++++++++++++++++++++++++++++++++++- drivers/net/wireless/b43/phy_n.h | 1 + 2 files changed, 195 insertions(+), 1 deletions(-) diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c index 101ef39..d0a0ce9 100644 --- a/drivers/net/wireless/b43/phy_n.c +++ b/drivers/net/wireless/b43/phy_n.c @@ -582,6 +582,199 @@ static void b43_nphy_tx_iq_workaround(struct b43_wldev *dev) b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_NPHY_TXIQW3, array[3]); } +/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/CalRxIqRev2 */ +static int b43_nphy_rev2_cal_rx_iq(struct b43_wldev *dev, + struct nphy_txgains target, u8 type, bool debug) +{ + struct b43_phy_n *nphy = dev->phy.n; + int i, j, index; + u8 rfctl[2]; + u8 afectl_core; + u16 tmp[6]; + u16 cur_hpf1, cur_hpf2, cur_lna; + u32 real, imag; + enum ieee80211_band band; + + u8 use; + u16 cur_hpf; + u16 lna[3] = { 3, 3, 1 }; + u16 hpf1[3] = { 7, 2, 0 }; + u16 hpf2[3] = { 2, 0, 0 }; + u32 power[3]; + u16 gain_save[2]; + u16 cal_gain[2]; + struct nphy_iqcal_params cal_params[2]; + struct nphy_iq_est est; + int ret = 0; + bool playtone = true; + int desired = 13; + + b43_nphy_stay_in_carrier_search(dev, 1); + + if (dev->phy.rev < 2) + ;//TODO: Call N PHY Reapply TX Cal Coeffs + //TODO: Read an N PHY Table with ID 7, length 2, offset 0x110, width 16, and data gain_save + for (i = 0; i < 2; i++) { + b43_nphy_iq_cal_gain_params(dev, i, target, &cal_params[i]); + cal_gain[i] = cal_params[i].cal_gain; + } + //TODO: Write an N PHY Table with ID 7, length 2, offset 0x110, width 16, and data from cal_gain + + for (i = 0; i < 2; i++) { + if (i == 0) { + rfctl[0] = B43_NPHY_RFCTL_INTC1; + rfctl[1] = B43_NPHY_RFCTL_INTC2; + afectl_core = B43_NPHY_AFECTL_C1; + } else { + rfctl[0] = B43_NPHY_RFCTL_INTC2; + rfctl[1] = B43_NPHY_RFCTL_INTC1; + afectl_core = B43_NPHY_AFECTL_C2; + } + + tmp[1] = b43_phy_read(dev, B43_NPHY_RFSEQCA); + tmp[2] = b43_phy_read(dev, afectl_core); + tmp[3] = b43_phy_read(dev, B43_NPHY_AFECTL_OVER); + tmp[4] = b43_phy_read(dev, rfctl[0]); + tmp[5] = b43_phy_read(dev, rfctl[1]); + + b43_phy_maskset(dev, B43_NPHY_RFSEQCA, + (u16)~B43_NPHY_RFSEQCA_RXDIS, + ((1 - i) << B43_NPHY_RFSEQCA_RXDIS_SHIFT)); + b43_phy_maskset(dev, B43_NPHY_RFSEQCA, ~B43_NPHY_RFSEQCA_TXEN, + (1 - i)); + b43_phy_set(dev, afectl_core, 0x0006); + b43_phy_set(dev, B43_NPHY_AFECTL_OVER, 0x0006); + + band = b43_current_band(dev->wl); + + if (nphy->rxcalparams & 0xFF000000) { + if (band == IEEE80211_BAND_5GHZ) + b43_phy_write(dev, rfctl[0], 0x140); + else + b43_phy_write(dev, rfctl[0], 0x110); + } else { + if (band == IEEE80211_BAND_5GHZ) + b43_phy_write(dev, rfctl[0], 0x180); + else + b43_phy_write(dev, rfctl[0], 0x120); + } + + if (band == IEEE80211_BAND_5GHZ) + b43_phy_write(dev, rfctl[1], 0x148); + else + b43_phy_write(dev, rfctl[1], 0x114); + + if (nphy->rxcalparams & 0x10000) { + b43_radio_maskset(dev, B2055_C1_GENSPARE2, 0xFC, + (i + 1)); + b43_radio_maskset(dev, B2055_C2_GENSPARE2, 0xFC, + (2 - i)); + } + + for (j = 0; i < 4; j++) { + if (j < 3) { + cur_lna = lna[j]; + cur_hpf1 = hpf1[j]; + cur_hpf2 = hpf2[j]; + } else { + if (power[1] > 10000) { + use = 1; + cur_hpf = cur_hpf1; + index = 2; + } else { + if (power[0] > 10000) { + use = 1; + cur_hpf = cur_hpf1; + index = 1; + } else { + index = 0; + use = 2; + cur_hpf = cur_hpf2; + } + } + cur_lna = lna[index]; + cur_hpf1 = hpf1[index]; + cur_hpf2 = hpf2[index]; + cur_hpf += desired - hweight32(power[index]); + cur_hpf = clamp_val(cur_hpf, 0, 10); + if (use == 1) + cur_hpf1 = cur_hpf; + else + cur_hpf2 = cur_hpf; + } + + tmp[0] = ((cur_hpf2 << 8) | (cur_hpf1 << 4) | + (cur_lna << 2)); + //TODO: Call N PHY RF Ctrl Override with 0x400, tmp[0], 3, 0 as arguments + //TODO: Call N PHY Force RF Seq with 2 as argument + //TODO: Call N PHT Stop Playback + + if (playtone) { + //TODO: Call N PHY TX Tone with 4000, (nphy_rxcalparams & 0xffff), 0, 0 as arguments and save result as ret + playtone = false; + } else { + //TODO: Call N PHY Run Samples with 160, 0xFFFF, 0, 0, 0 as arguments + } + + if (ret == 0) { + if (j < 3) { + b43_nphy_rx_iq_est(dev, &est, 1024, 32, + false); + if (i == 0) { + real = est.i0_pwr; + imag = est.q0_pwr; + } else { + real = est.i1_pwr; + imag = est.q1_pwr; + } + power[i] = ((real + imag) / 1024) + 1; + } else { + //TODO: Call N PHY Calc RX IQ Comp with (1 << i) as argument + } + //TODO: Call N PHY Stop Playback + } + + if (ret != 0) + break; + } + + b43_radio_mask(dev, B2055_C1_GENSPARE2, 0xFC); + b43_radio_mask(dev, B2055_C2_GENSPARE2, 0xFC); + b43_phy_write(dev, rfctl[1], tmp[5]); + b43_phy_write(dev, rfctl[0], tmp[4]); + b43_phy_write(dev, B43_NPHY_AFECTL_OVER, tmp[3]); + b43_phy_write(dev, afectl_core, tmp[2]); + b43_phy_write(dev, B43_NPHY_RFSEQCA, tmp[1]); + + if (ret != 0) + break; + } + + //TODO: Call N PHY RF Ctrl Override with 0x400, 0, 3, 1 as arguments + //TODO: Call N PHY Force RF Seq with 2 as argument + //TODO: Write an N PHY Table with ID 7, length 2, offset 0x110, width 16, and data from gain_save + + b43_nphy_stay_in_carrier_search(dev, 0); + + return ret; +} + +static int b43_nphy_rev3_cal_rx_iq(struct b43_wldev *dev, + struct nphy_txgains target, u8 type, bool debug) +{ + return -1; +} + +/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/CalRxIq */ +static int b43_nphy_cal_rx_iq(struct b43_wldev *dev, + struct nphy_txgains target, u8 type, bool debug) +{ + if (dev->phy.rev >= 3) + return b43_nphy_rev3_cal_rx_iq(dev, target, type, debug); + else + return b43_nphy_rev2_cal_rx_iq(dev, target, type, debug); +} + /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/TxLpFbw */ static void b43_nphy_tx_lp_fbw(struct b43_wldev *dev) { @@ -1414,7 +1607,7 @@ int b43_phy_initn(struct b43_wldev *dev) target = b43_nphy_get_tx_gains(dev); } /* TODO: If the output of N PHY Cal TX Iqlo with target, 1 0 as arguments is 0 - If the output of N PHY Cal RX Iqlo with target, 2 0 as arguments is 0 + if (b43_nphy_cal_rx_iq(dev, target, 2, 0) == 0) Call N PHY Save Cal */ } else if (nphy->mphase_cal_phase_id == 0) { //TODO N PHY Periodic Calibration with argument 3 diff --git a/drivers/net/wireless/b43/phy_n.h b/drivers/net/wireless/b43/phy_n.h index 491ff88..ab54b0f 100644 --- a/drivers/net/wireless/b43/phy_n.h +++ b/drivers/net/wireless/b43/phy_n.h @@ -973,6 +973,7 @@ struct b43_phy_n { u8 antsel_type; u16 papd_epsilon_offset[2]; u32 deaf_count; + u32 rxcalparams; bool hang_avoid; bool mute; -- 1.6.4.2 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
