diff options
| author | Vasanthakumar Thiagarajan <vasanth@atheros.com> | 2011-04-19 19:29:15 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-04-25 14:50:12 -0400 |
| commit | 2976bc5ebfb6c6dd37b4513540e567de0a2313f7 (patch) | |
| tree | 8d6eccfdccb245ac33185277790fec26baa04914 /drivers/net/wireless/ath | |
| parent | 2be7bfe0b454bc7c60ede777907ec817baa6196e (diff) | |
ath9k_hw: Configure chain switch table and attenuation control only for active chains
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9003_eeprom.c | 44 |
1 files changed, 26 insertions, 18 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c index 262fb62c9a8e..fd9b8c400f7e 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c @@ -3501,23 +3501,28 @@ static u16 ar9003_hw_ant_ctrl_chain_get(struct ath_hw *ah, static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz) { + int chain; + static const u32 switch_chain_reg[AR9300_MAX_CHAINS] = { + AR_PHY_SWITCH_CHAIN_0, + AR_PHY_SWITCH_CHAIN_1, + AR_PHY_SWITCH_CHAIN_2, + }; + u32 value = ar9003_hw_ant_ctrl_common_get(ah, is2ghz); + REG_RMW_FIELD(ah, AR_PHY_SWITCH_COM, AR_SWITCH_TABLE_COM_ALL, value); value = ar9003_hw_ant_ctrl_common_2_get(ah, is2ghz); REG_RMW_FIELD(ah, AR_PHY_SWITCH_COM_2, AR_SWITCH_TABLE_COM2_ALL, value); - value = ar9003_hw_ant_ctrl_chain_get(ah, 0, is2ghz); - REG_RMW_FIELD(ah, AR_PHY_SWITCH_CHAIN_0, AR_SWITCH_TABLE_ALL, value); - - if (!AR_SREV_9485(ah)) { - value = ar9003_hw_ant_ctrl_chain_get(ah, 1, is2ghz); - REG_RMW_FIELD(ah, AR_PHY_SWITCH_CHAIN_1, AR_SWITCH_TABLE_ALL, - value); - - value = ar9003_hw_ant_ctrl_chain_get(ah, 2, is2ghz); - REG_RMW_FIELD(ah, AR_PHY_SWITCH_CHAIN_2, AR_SWITCH_TABLE_ALL, - value); + for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) { + if ((ah->rxchainmask & BIT(chain)) || + (ah->txchainmask & BIT(chain))) { + value = ar9003_hw_ant_ctrl_chain_get(ah, chain, + is2ghz); + REG_RMW_FIELD(ah, switch_chain_reg[chain], + AR_SWITCH_TABLE_ALL, value); + } } if (AR_SREV_9485(ah)) { @@ -3638,13 +3643,16 @@ static void ar9003_hw_atten_apply(struct ath_hw *ah, struct ath9k_channel *chan) /* Test value. if 0 then attenuation is unused. Don't load anything. */ for (i = 0; i < 3; i++) { - value = ar9003_hw_atten_chain_get(ah, i, chan); - REG_RMW_FIELD(ah, ext_atten_reg[i], - AR_PHY_EXT_ATTEN_CTL_XATTEN1_DB, value); - - value = ar9003_hw_atten_chain_get_margin(ah, i, chan); - REG_RMW_FIELD(ah, ext_atten_reg[i], - AR_PHY_EXT_ATTEN_CTL_XATTEN1_MARGIN, value); + if (ah->txchainmask & BIT(i)) { + value = ar9003_hw_atten_chain_get(ah, i, chan); + REG_RMW_FIELD(ah, ext_atten_reg[i], + AR_PHY_EXT_ATTEN_CTL_XATTEN1_DB, value); + + value = ar9003_hw_atten_chain_get_margin(ah, i, chan); + REG_RMW_FIELD(ah, ext_atten_reg[i], + AR_PHY_EXT_ATTEN_CTL_XATTEN1_MARGIN, + value); + } } } |