From e702ba18f25887c76d26c8a85cc1706463c62e9a Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 1 Dec 2010 19:07:46 +0100 Subject: ath9k_hw: fix endian issues with CTLs on AR9003 Parsing data using bitfields is messy, because it makes endian handling much harder. AR9002 and earlier got it right, AR9003 got it wrong. This might lead to either using too high or too low tx power values, depending on frequency and eeprom settings. Fix it by getting rid of the CTL related bitfields entirely and use masks instead. Signed-off-by: Felix Fietkau Cc: stable@kernel.org Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/eeprom.h | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) (limited to 'drivers/net/wireless/ath/ath9k/eeprom.h') diff --git a/drivers/net/wireless/ath/ath9k/eeprom.h b/drivers/net/wireless/ath/ath9k/eeprom.h index dacb45e1b906..41ad1fe62527 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom.h +++ b/drivers/net/wireless/ath/ath9k/eeprom.h @@ -233,6 +233,9 @@ #define AR9287_CHECKSUM_LOCATION (AR9287_EEP_START_LOC + 1) +#define CTL_EDGE_TPOWER(_ctl) ((_ctl) & 0x3f) +#define CTL_EDGE_FLAGS(_ctl) (((_ctl) >> 6) & 0x03) + enum eeprom_param { EEP_NFTHRESH_5, EEP_NFTHRESH_2, @@ -535,18 +538,10 @@ struct cal_target_power_ht { u8 tPow2x[8]; } __packed; - -#ifdef __BIG_ENDIAN_BITFIELD -struct cal_ctl_edges { - u8 bChannel; - u8 flag:2, tPower:6; -} __packed; -#else struct cal_ctl_edges { u8 bChannel; - u8 tPower:6, flag:2; + u8 ctl; } __packed; -#endif struct cal_data_op_loop_ar9287 { u8 pwrPdg[2][5]; -- cgit v1.2.3 From f67e07eb3decd7840b621fba37fd600adfdf99f8 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 1 Dec 2010 19:07:47 +0100 Subject: ath9k_hw: fix more bitfield related endian issues A few LNA control related flags were also specified as a bitfields, however for some strange reason they were written in big-endian order this time. Fix this by using flags instead. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/eeprom.h | 14 ++++++++++---- drivers/net/wireless/ath/ath9k/eeprom_def.c | 11 ++++++----- 2 files changed, 16 insertions(+), 9 deletions(-) (limited to 'drivers/net/wireless/ath/ath9k/eeprom.h') diff --git a/drivers/net/wireless/ath/ath9k/eeprom.h b/drivers/net/wireless/ath/ath9k/eeprom.h index 41ad1fe62527..dd59f09441a3 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom.h +++ b/drivers/net/wireless/ath/ath9k/eeprom.h @@ -236,6 +236,15 @@ #define CTL_EDGE_TPOWER(_ctl) ((_ctl) & 0x3f) #define CTL_EDGE_FLAGS(_ctl) (((_ctl) >> 6) & 0x03) +#define LNA_CTL_BUF_MODE BIT(0) +#define LNA_CTL_ISEL_LO BIT(1) +#define LNA_CTL_ISEL_HI BIT(2) +#define LNA_CTL_BUF_IN BIT(3) +#define LNA_CTL_FEM_BAND BIT(4) +#define LNA_CTL_LOCAL_BIAS BIT(5) +#define LNA_CTL_FORCE_XPA BIT(6) +#define LNA_CTL_USE_ANT1 BIT(7) + enum eeprom_param { EEP_NFTHRESH_5, EEP_NFTHRESH_2, @@ -381,10 +390,7 @@ struct modal_eep_header { u8 xatten2Margin[AR5416_MAX_CHAINS]; u8 ob_ch1; u8 db_ch1; - u8 useAnt1:1, - force_xpaon:1, - local_bias:1, - femBandSelectUsed:1, xlnabufin:1, xlnaisel:2, xlnabufmode:1; + u8 lna_ctl; u8 miscBits; u16 xpaBiasLvlFreq[3]; u8 futureModal[6]; diff --git a/drivers/net/wireless/ath/ath9k/eeprom_def.c b/drivers/net/wireless/ath/ath9k/eeprom_def.c index 76b4d65472dd..526d7c933f7f 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom_def.c +++ b/drivers/net/wireless/ath/ath9k/eeprom_def.c @@ -451,9 +451,10 @@ static void ath9k_hw_def_set_board_values(struct ath_hw *ah, ath9k_hw_analog_shift_rmw(ah, AR_AN_TOP2, AR_AN_TOP2_LOCALBIAS, AR_AN_TOP2_LOCALBIAS_S, - pModal->local_bias); + !!(pModal->lna_ctl & + LNA_CTL_LOCAL_BIAS)); REG_RMW_FIELD(ah, AR_PHY_XPA_CFG, AR_PHY_FORCE_XPA_CFG, - pModal->force_xpaon); + !!(pModal->lna_ctl & LNA_CTL_FORCE_XPA)); } REG_RMW_FIELD(ah, AR_PHY_SETTLING, AR_PHY_SETTLING_SWITCH, @@ -1428,9 +1429,9 @@ static u8 ath9k_hw_def_get_num_ant_config(struct ath_hw *ah, num_ant_config = 1; - if (pBase->version >= 0x0E0D) - if (pModal->useAnt1) - num_ant_config += 1; + if (pBase->version >= 0x0E0D && + (pModal->lna_ctl & LNA_CTL_USE_ANT1)) + num_ant_config += 1; return num_ant_config; } -- cgit v1.2.3