diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath5k/phy.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath5k/phy.c | 82 |
1 files changed, 44 insertions, 38 deletions
diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c index 492cbb15720..6284c389ba1 100644 --- a/drivers/net/wireless/ath/ath5k/phy.c +++ b/drivers/net/wireless/ath/ath5k/phy.c @@ -378,8 +378,6 @@ enum ath5k_rfgain ath5k_hw_gainf_calibrate(struct ath5k_hw *ah) u32 data, type; struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; - ATH5K_TRACE(ah->ah_sc); - if (ah->ah_rf_banks == NULL || ah->ah_gain.g_state == AR5K_RFGAIN_INACTIVE) return AR5K_RFGAIN_INACTIVE; @@ -1167,7 +1165,7 @@ static s16 ath5k_hw_get_median_noise_floor(struct ath5k_hw *ah) * The median of the values in the history is then loaded into the * hardware for its own use for RSSI and CCA measurements. */ -static void ath5k_hw_update_noise_floor(struct ath5k_hw *ah) +void ath5k_hw_update_noise_floor(struct ath5k_hw *ah) { struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; u32 val; @@ -1248,7 +1246,6 @@ static void ath5k_hw_update_noise_floor(struct ath5k_hw *ah) /* * Perform a PHY calibration on RF5110 * -Fix BPSK/QAM Constellation (I/Q correction) - * -Calculate Noise Floor */ static int ath5k_hw_rf5110_calibrate(struct ath5k_hw *ah, struct ieee80211_channel *channel) @@ -1335,8 +1332,6 @@ static int ath5k_hw_rf5110_calibrate(struct ath5k_hw *ah, return ret; } - ath5k_hw_update_noise_floor(ah); - /* * Re-enable RX/TX and beacons */ @@ -1348,22 +1343,20 @@ static int ath5k_hw_rf5110_calibrate(struct ath5k_hw *ah, } /* - * Perform a PHY calibration on RF5111/5112 and newer chips + * Perform I/Q calibration on RF5111/5112 and newer chips */ -static int ath5k_hw_rf511x_calibrate(struct ath5k_hw *ah, - struct ieee80211_channel *channel) +static int +ath5k_hw_rf511x_iq_calibrate(struct ath5k_hw *ah) { u32 i_pwr, q_pwr; s32 iq_corr, i_coff, i_coffd, q_coff, q_coffd; int i; - ATH5K_TRACE(ah->ah_sc); if (!ah->ah_calibration || ath5k_hw_reg_read(ah, AR5K_PHY_IQ) & AR5K_PHY_IQ_RUN) - goto done; + return 0; /* Calibration has finished, get the results and re-run */ - /* work around empty results which can apparently happen on 5212 */ for (i = 0; i <= 10; i++) { iq_corr = ath5k_hw_reg_read(ah, AR5K_PHY_IQRES_CAL_CORR); @@ -1384,7 +1377,7 @@ static int ath5k_hw_rf511x_calibrate(struct ath5k_hw *ah, /* protect against divide by 0 and loss of sign bits */ if (i_coffd == 0 || q_coffd < 2) - goto done; + return -1; i_coff = (-iq_corr) / i_coffd; i_coff = clamp(i_coff, -32, 31); /* signed 6 bit */ @@ -1410,17 +1403,6 @@ static int ath5k_hw_rf511x_calibrate(struct ath5k_hw *ah, AR5K_PHY_IQ_CAL_NUM_LOG_MAX, 15); AR5K_REG_ENABLE_BITS(ah, AR5K_PHY_IQ, AR5K_PHY_IQ_RUN); -done: - - /* TODO: Separate noise floor calibration from I/Q calibration - * since noise floor calibration interrupts rx path while I/Q - * calibration doesn't. We don't need to run noise floor calibration - * as often as I/Q calibration.*/ - ath5k_hw_update_noise_floor(ah); - - /* Initiate a gain_F calibration */ - ath5k_hw_request_rfgain_probe(ah); - return 0; } @@ -1434,8 +1416,10 @@ int ath5k_hw_phy_calibrate(struct ath5k_hw *ah, if (ah->ah_radio == AR5K_RF5110) ret = ath5k_hw_rf5110_calibrate(ah, channel); - else - ret = ath5k_hw_rf511x_calibrate(ah, channel); + else { + ret = ath5k_hw_rf511x_iq_calibrate(ah); + ath5k_hw_request_rfgain_probe(ah); + } return ret; } @@ -1693,7 +1677,6 @@ ath5k_hw_set_spur_mitigation_filter(struct ath5k_hw *ah, int ath5k_hw_phy_disable(struct ath5k_hw *ah) { - ATH5K_TRACE(ah->ah_sc); /*Just a try M.F.*/ ath5k_hw_reg_write(ah, AR5K_PHY_ACT_DISABLE, AR5K_PHY_ACT); @@ -1709,8 +1692,6 @@ u16 ath5k_hw_radio_revision(struct ath5k_hw *ah, unsigned int chan) u32 srev; u16 ret; - ATH5K_TRACE(ah->ah_sc); - /* * Set the radio chip access register */ @@ -1755,8 +1736,6 @@ u16 ath5k_hw_radio_revision(struct ath5k_hw *ah, unsigned int chan) static void /*TODO:Boundary check*/ ath5k_hw_set_def_antenna(struct ath5k_hw *ah, u8 ant) { - ATH5K_TRACE(ah->ah_sc); - if (ah->ah_version != AR5K_AR5210) ath5k_hw_reg_write(ah, ant & 0x7, AR5K_DEFAULT_ANTENNA); } @@ -1789,19 +1768,50 @@ ath5k_hw_set_fast_div(struct ath5k_hw *ah, u8 ee_mode, bool enable) if (enable) { AR5K_REG_WRITE_BITS(ah, AR5K_PHY_RESTART, - AR5K_PHY_RESTART_DIV_GC, 0xc); + AR5K_PHY_RESTART_DIV_GC, 4); AR5K_REG_ENABLE_BITS(ah, AR5K_PHY_FAST_ANT_DIV, AR5K_PHY_FAST_ANT_DIV_EN); } else { AR5K_REG_WRITE_BITS(ah, AR5K_PHY_RESTART, - AR5K_PHY_RESTART_DIV_GC, 0x8); + AR5K_PHY_RESTART_DIV_GC, 0); AR5K_REG_DISABLE_BITS(ah, AR5K_PHY_FAST_ANT_DIV, AR5K_PHY_FAST_ANT_DIV_EN); } } +void +ath5k_hw_set_antenna_switch(struct ath5k_hw *ah, u8 ee_mode) +{ + u8 ant0, ant1; + + /* + * In case a fixed antenna was set as default + * use the same switch table twice. + */ + if (ah->ah_ant_mode == AR5K_ANTMODE_FIXED_A) + ant0 = ant1 = AR5K_ANT_SWTABLE_A; + else if (ah->ah_ant_mode == AR5K_ANTMODE_FIXED_B) + ant0 = ant1 = AR5K_ANT_SWTABLE_B; + else { + ant0 = AR5K_ANT_SWTABLE_A; + ant1 = AR5K_ANT_SWTABLE_B; + } + + /* Set antenna idle switch table */ + AR5K_REG_WRITE_BITS(ah, AR5K_PHY_ANT_CTL, + AR5K_PHY_ANT_CTL_SWTABLE_IDLE, + (ah->ah_ant_ctl[ee_mode][AR5K_ANT_CTL] | + AR5K_PHY_ANT_CTL_TXRX_EN)); + + /* Set antenna switch tables */ + ath5k_hw_reg_write(ah, ah->ah_ant_ctl[ee_mode][ant0], + AR5K_PHY_ANT_SWITCH_TABLE_0); + ath5k_hw_reg_write(ah, ah->ah_ant_ctl[ee_mode][ant1], + AR5K_PHY_ANT_SWITCH_TABLE_1); +} + /* * Set antenna operating mode */ @@ -1823,8 +1833,6 @@ ath5k_hw_set_antenna_mode(struct ath5k_hw *ah, u8 ant_mode) def_ant = ah->ah_def_ant; - ATH5K_TRACE(ah->ah_sc); - switch (channel->hw_value & CHANNEL_MODES) { case CHANNEL_A: case CHANNEL_T: @@ -1923,6 +1931,7 @@ ath5k_hw_set_antenna_mode(struct ath5k_hw *ah, u8 ant_mode) if (sta_id1) AR5K_REG_ENABLE_BITS(ah, AR5K_STA_ID1, sta_id1); + ath5k_hw_set_antenna_switch(ah, ee_mode); /* Note: set diversity before default antenna * because it won't work correctly */ ath5k_hw_set_fast_div(ah, ee_mode, fast_div); @@ -2988,7 +2997,6 @@ ath5k_hw_txpower(struct ath5k_hw *ah, struct ieee80211_channel *channel, u8 type; int ret; - ATH5K_TRACE(ah->ah_sc); if (txpower > AR5K_TUNE_MAX_TXPOWER) { ATH5K_ERR(ah->ah_sc, "invalid tx power: %u\n", txpower); return -EINVAL; @@ -3084,8 +3092,6 @@ int ath5k_hw_set_txpower_limit(struct ath5k_hw *ah, u8 txpower) struct ieee80211_channel *channel = ah->ah_current_channel; u8 ee_mode; - ATH5K_TRACE(ah->ah_sc); - switch (channel->hw_value & CHANNEL_MODES) { case CHANNEL_A: case CHANNEL_T: |