Signed-off-by: Rafał Miłecki <zajec5@xxxxxxxxx> --- drivers/net/wireless/b43/phy_n.c | 59 +++++++++++++++++++++++++++++++++++++- 1 files changed, 58 insertions(+), 1 deletions(-) diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c index c244ddf..7b2468d 100644 --- a/drivers/net/wireless/b43/phy_n.c +++ b/drivers/net/wireless/b43/phy_n.c @@ -31,6 +31,8 @@ struct nphy_txgains { u16 txgm[2]; u16 pga[2]; u16 pad[2]; u16 ipa[2]; }; +struct nphy_iq_est { s32 iq0_prod; u32 i0_pwr; u32 q0_pwr; s32 iq1_prod; + u32 i1_pwr; u32 q1_pwr; }; void b43_nphy_set_rxantenna(struct b43_wldev *dev, int antenna) {//TODO @@ -471,6 +473,61 @@ static void b43_nphy_rx_iq_coeffs(struct b43_wldev *dev, bool write, } } +/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/RxIqEst */ +static void b43_nphy_rx_iq_est(struct b43_wldev *dev, struct nphy_iq_est *est, + u16 samps, u8 time, bool wait) +{ + int i; + u16 tmp; + + b43_phy_write(dev, B43_NPHY_IQEST_SAMCNT, samps); + b43_phy_maskset(dev, B43_NPHY_IQEST_WT, ~B43_NPHY_IQEST_WT_VAL, time); + if (wait) + b43_phy_set(dev, B43_NPHY_IQEST_CMD, B43_NPHY_IQEST_CMD_MODE); + else + b43_phy_mask(dev, B43_NPHY_IQEST_CMD, B43_NPHY_IQEST_CMD_MODE); + + b43_phy_set(dev, B43_NPHY_IQEST_CMD, B43_NPHY_IQEST_CMD_START); + + for (i = 1000; i; i--) { + tmp = b43_phy_read(dev, B43_NPHY_IQEST_CMD); + if (!(tmp & B43_NPHY_IQEST_CMD_START)) { + est->i0_pwr = (b43_phy_read(dev, B43_NPHY_IQEST_IPACC_HI0) << 16) | + b43_phy_read(dev, B43_NPHY_IQEST_IPACC_LO0); + est->q0_pwr = (b43_phy_read(dev, B43_NPHY_IQEST_QPACC_HI0) << 16) | + b43_phy_read(dev, B43_NPHY_IQEST_QPACC_LO0); + est->iq0_prod = (b43_phy_read(dev, B43_NPHY_IQEST_IQACC_HI0) << 16) | + b43_phy_read(dev, B43_NPHY_IQEST_IQACC_LO0); + + est->i1_pwr = (b43_phy_read(dev, B43_NPHY_IQEST_IPACC_HI1) << 16) | + b43_phy_read(dev, B43_NPHY_IQEST_IPACC_LO1); + est->q1_pwr = (b43_phy_read(dev, B43_NPHY_IQEST_QPACC_HI1) << 16) | + b43_phy_read(dev, B43_NPHY_IQEST_QPACC_LO1); + est->iq1_prod = (b43_phy_read(dev, B43_NPHY_IQEST_IQACC_HI1) << 16) | + b43_phy_read(dev, B43_NPHY_IQEST_IQACC_LO1); + return; + } + udelay(10); + } + memset(est, 0, sizeof(*est)); +} + +/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/TxIqWar */ +static void b43_nphy_tx_iq_workaround(struct b43_wldev *dev) +{ + u16 array[4]; + int i; + + b43_phy_write(dev, B43_NPHY_TABLE_ADDR, 0x3C50); + for (i = 0; i < 4; i++) + array[i] = b43_phy_read(dev, B43_NPHY_TABLE_DATALO); + + b43_shm_write16(dev, B43_SHM_SHARED, 0x0700, array[0]); + b43_shm_write16(dev, B43_SHM_SHARED, 0x0702, array[1]); + b43_shm_write16(dev, B43_SHM_SHARED, 0x0704, array[2]); + b43_shm_write16(dev, B43_SHM_SHARED, 0x0706, array[3]); +} + /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/TxLpFbw */ static void b43_nphy_tx_lp_fbw(struct b43_wldev *dev) { @@ -1108,7 +1165,7 @@ static void b43_nphy_restore_cal(struct b43_wldev *dev) //TODO: Write an N PHY table with ID 15, length 2, offset 93, width 16 and data from loft if (dev->phy.rev < 2) - ;//TODO: Call N PHY TX IQ Workaround + b43_nphy_tx_iq_workaround(dev); if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) { txcal_radio_regs = nphy->cal_cache.txcal_radio_regs_2G; -- 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