From db91f2e4d410bf3011b3649b9257e5b3c60b25ff Mon Sep 17 00:00:00 2001 From: Vivek Natarajan Date: Fri, 14 Aug 2009 11:27:16 +0530 Subject: [PATCH] ath9k: Add open loop power control support for AR9287. Signed-off-by: Vivek Natarajan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/calib.c | 44 ++++++++++++++++++-------- drivers/net/wireless/ath/ath9k/hw.c | 20 +++++++++--- drivers/net/wireless/ath/ath9k/phy.h | 7 ++++ 3 files changed, 52 insertions(+), 19 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c index 26d87527acbd..20f74b5b5703 100644 --- a/drivers/net/wireless/ath/ath9k/calib.c +++ b/drivers/net/wireless/ath/ath9k/calib.c @@ -729,26 +729,42 @@ s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan) static void ath9k_olc_temp_compensation(struct ath_hw *ah) { u32 rddata, i; - int delta, currPDADC, regval; + int delta, currPDADC, regval, slope; rddata = REG_READ(ah, AR_PHY_TX_PWRCTRL4); - currPDADC = MS(rddata, AR_PHY_TX_PWRCTRL_PD_AVG_OUT); - if (ah->eep_ops->get_eeprom(ah, EEP_DAC_HPWR_5G)) - delta = (currPDADC - ah->initPDADC + 4) / 8; - else - delta = (currPDADC - ah->initPDADC + 5) / 10; - if (delta != ah->PDADCdelta) { - ah->PDADCdelta = delta; - for (i = 1; i < AR9280_TX_GAIN_TABLE_SIZE; i++) { - regval = ah->originalGain[i] - delta; - if (regval < 0) - regval = 0; + if (OLC_FOR_AR9287_10_LATER) { + if (ah->initPDADC == 0 || currPDADC == 0) { + return; + } else { + slope = ah->eep_ops->get_eeprom(ah, EEP_TEMPSENSE_SLOPE); + if (slope == 0) + delta = 0; + else + delta = ((currPDADC - ah->initPDADC)*4) / slope; + REG_RMW_FIELD(ah, AR_PHY_CH0_TX_PWRCTRL11, + AR_PHY_TX_PWRCTRL_OLPC_TEMP_COMP, delta); + REG_RMW_FIELD(ah, AR_PHY_CH1_TX_PWRCTRL11, + AR_PHY_TX_PWRCTRL_OLPC_TEMP_COMP, delta); + } + } else { + if (ah->eep_ops->get_eeprom(ah, EEP_DAC_HPWR_5G)) + delta = (currPDADC - ah->initPDADC + 4) / 8; + else + delta = (currPDADC - ah->initPDADC + 5) / 10; + + if (delta != ah->PDADCdelta) { + ah->PDADCdelta = delta; + for (i = 1; i < AR9280_TX_GAIN_TABLE_SIZE; i++) { + regval = ah->originalGain[i] - delta; + if (regval < 0) + regval = 0; - REG_RMW_FIELD(ah, AR_PHY_TX_GAIN_TBL1 + i * 4, - AR_PHY_TX_GAIN, regval); + REG_RMW_FIELD(ah, AR_PHY_TX_GAIN_TBL1 + i * 4, + AR_PHY_TX_GAIN, regval); + } } } } diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 9f1b34d9861a..125e689f7c5c 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -1332,11 +1332,21 @@ static void ath9k_olc_init(struct ath_hw *ah) { u32 i; - for (i = 0; i < AR9280_TX_GAIN_TABLE_SIZE; i++) - ah->originalGain[i] = - MS(REG_READ(ah, AR_PHY_TX_GAIN_TBL1 + i * 4), - AR_PHY_TX_GAIN); - ah->PDADCdelta = 0; + if (OLC_FOR_AR9287_10_LATER) { + REG_SET_BIT(ah, AR_PHY_TX_PWRCTRL9, + AR_PHY_TX_PWRCTRL9_RES_DC_REMOVAL); + ath9k_hw_analog_shift_rmw(ah, AR9287_AN_TXPC0, + AR9287_AN_TXPC0_TXPCMODE, + AR9287_AN_TXPC0_TXPCMODE_S, + AR9287_AN_TXPC0_TXPCMODE_TEMPSENSE); + udelay(100); + } else { + for (i = 0; i < AR9280_TX_GAIN_TABLE_SIZE; i++) + ah->originalGain[i] = + MS(REG_READ(ah, AR_PHY_TX_GAIN_TBL1 + i * 4), + AR_PHY_TX_GAIN); + ah->PDADCdelta = 0; + } } static u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, diff --git a/drivers/net/wireless/ath/ath9k/phy.h b/drivers/net/wireless/ath/ath9k/phy.h index e83cd4ab87f0..dfda6f444648 100644 --- a/drivers/net/wireless/ath/ath9k/phy.h +++ b/drivers/net/wireless/ath/ath9k/phy.h @@ -490,11 +490,18 @@ bool ath9k_hw_init_rf(struct ath_hw *ah, #define AR_PHY_TX_PWRCTRL9 0xa27C #define AR_PHY_TX_DESIRED_SCALE_CCK 0x00007C00 #define AR_PHY_TX_DESIRED_SCALE_CCK_S 10 +#define AR_PHY_TX_PWRCTRL9_RES_DC_REMOVAL 0x80000000 +#define AR_PHY_TX_PWRCTRL9_RES_DC_REMOVAL_S 31 #define AR_PHY_TX_GAIN_TBL1 0xa300 #define AR_PHY_TX_GAIN 0x0007F000 #define AR_PHY_TX_GAIN_S 12 +#define AR_PHY_CH0_TX_PWRCTRL11 0xa398 +#define AR_PHY_CH1_TX_PWRCTRL11 0xb398 +#define AR_PHY_TX_PWRCTRL_OLPC_TEMP_COMP 0x0000FC00 +#define AR_PHY_TX_PWRCTRL_OLPC_TEMP_COMP_S 10 + #define AR_PHY_VIT_MASK2_M_46_61 0xa3a0 #define AR_PHY_MASK2_M_31_45 0xa3a4 #define AR_PHY_MASK2_M_16_30 0xa3a8 -- 2.30.2