From 7f63845f2a5f54c64968a4221561c619468b8a54 Mon Sep 17 00:00:00 2001 From: Sujith Date: Fri, 7 Aug 2009 09:45:23 +0530 Subject: [PATCH] ath9k: Clean antenna configuration for 4K EEPROM chips This patch revamps the antenna configuration mechanism for 4K chips. Signed-off-by: Sujith Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/eeprom.h | 33 +++++-- drivers/net/wireless/ath/ath9k/eeprom_4k.c | 103 +++++++++++---------- drivers/net/wireless/ath/ath9k/phy.h | 1 + 3 files changed, 84 insertions(+), 53 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/eeprom.h b/drivers/net/wireless/ath/ath9k/eeprom.h index 7d825b6d9c8c..4fe33f7eee9d 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom.h +++ b/drivers/net/wireless/ath/ath9k/eeprom.h @@ -404,8 +404,13 @@ struct modal_eep_4k_header { u8 iqCalICh[AR5416_EEP4K_MAX_CHAINS]; u8 iqCalQCh[AR5416_EEP4K_MAX_CHAINS]; u8 pdGainOverlap; - u8 ob_01; - u8 db1_01; +#ifdef __BIG_ENDIAN_BITFIELD + u8 ob_1:4, ob_0:4; + u8 db1_1:4, db1_0:4; +#else + u8 ob_0:4, ob_1:4; + u8 db1_0:4, db1_1:4; +#endif u8 xpaBiasLvl; u8 txFrameToDataStart; u8 txFrameToPaOn; @@ -415,11 +420,27 @@ struct modal_eep_4k_header { u8 swSettleHt40; u8 xatten2Db[AR5416_EEP4K_MAX_CHAINS]; u8 xatten2Margin[AR5416_EEP4K_MAX_CHAINS]; - u8 db2_01; +#ifdef __BIG_ENDIAN_BITFIELD + u8 db2_1:4, db2_0:4; +#else + u8 db2_0:4, db2_1:4; +#endif u8 version; - u16 ob_234; - u16 db1_234; - u16 db2_234; +#ifdef __BIG_ENDIAN_BITFIELD + u8 ob_3:4, ob_2:4; + u8 antdiv_ctl1:4, ob_4:4; + u8 db1_3:4, db1_2:4; + u8 antdiv_ctl2:4, db1_4:4; + u8 db2_2:4, db2_3:4; + u8 reserved:4, db2_4:4; +#else + u8 ob_2:4, ob_3:4; + u8 ob_4:4, antdiv_ctl1:4; + u8 db1_2:4, db1_3:4; + u8 db1_4:4, antdiv_ctl2:4; + u8 db2_2:4, db2_3:4; + u8 db2_4:4, reserved:4; +#endif u8 futureModal[4]; struct spur_chan spurChans[AR5416_EEPROM_MODAL_SPURS]; } __packed; diff --git a/drivers/net/wireless/ath/ath9k/eeprom_4k.c b/drivers/net/wireless/ath/ath9k/eeprom_4k.c index aafc6d33da75..c9636159b8f4 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom_4k.c +++ b/drivers/net/wireless/ath/ath9k/eeprom_4k.c @@ -197,9 +197,9 @@ static u32 ath9k_hw_4k_get_eeprom(struct ath_hw *ah, case EEP_RF_SILENT: return pBase->rfSilent; case EEP_OB_2: - return pModal->ob_01; + return pModal->ob_0; case EEP_DB_2: - return pModal->db1_01; + return pModal->db1_1; case EEP_MINOR_REV: return pBase->version & AR5416_EEP_VER_MINOR_MASK; case EEP_TX_MASK: @@ -923,58 +923,67 @@ static void ath9k_hw_4k_set_board_values(struct ath_hw *ah, /* Initialize Ant Diversity settings from EEPROM */ if (pModal->version >= 3) { - ant_div_control1 = ((pModal->ob_234 >> 12) & 0xf); - ant_div_control2 = ((pModal->db1_234 >> 12) & 0xf); - regVal = REG_READ(ah, 0x99ac); - regVal &= (~(0x7f000000)); - regVal |= ((ant_div_control1 & 0x1) << 24); - regVal |= (((ant_div_control1 >> 1) & 0x1) << 29); - regVal |= (((ant_div_control1 >> 2) & 0x1) << 30); - regVal |= ((ant_div_control2 & 0x3) << 25); - regVal |= (((ant_div_control2 >> 2) & 0x3) << 27); - REG_WRITE(ah, 0x99ac, regVal); - regVal = REG_READ(ah, 0x99ac); - regVal = REG_READ(ah, 0xa208); - regVal &= (~(0x1 << 13)); - regVal |= (((ant_div_control1 >> 3) & 0x1) << 13); - REG_WRITE(ah, 0xa208, regVal); - regVal = REG_READ(ah, 0xa208); + ant_div_control1 = pModal->antdiv_ctl1; + ant_div_control2 = pModal->antdiv_ctl2; + + regVal = REG_READ(ah, AR_PHY_MULTICHAIN_GAIN_CTL); + regVal &= (~(AR_PHY_9285_ANT_DIV_CTL_ALL)); + + regVal |= SM(ant_div_control1, + AR_PHY_9285_ANT_DIV_CTL); + regVal |= SM(ant_div_control2, + AR_PHY_9285_ANT_DIV_ALT_LNACONF); + regVal |= SM((ant_div_control2 >> 2), + AR_PHY_9285_ANT_DIV_MAIN_LNACONF); + regVal |= SM((ant_div_control1 >> 1), + AR_PHY_9285_ANT_DIV_ALT_GAINTB); + regVal |= SM((ant_div_control1 >> 2), + AR_PHY_9285_ANT_DIV_MAIN_GAINTB); + + + REG_WRITE(ah, AR_PHY_MULTICHAIN_GAIN_CTL, regVal); + regVal = REG_READ(ah, AR_PHY_MULTICHAIN_GAIN_CTL); + regVal = REG_READ(ah, AR_PHY_CCK_DETECT); + regVal &= (~AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV); + regVal |= SM((ant_div_control1 >> 3), + AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV); + + REG_WRITE(ah, AR_PHY_CCK_DETECT, regVal); + regVal = REG_READ(ah, AR_PHY_CCK_DETECT); } if (pModal->version >= 2) { - ob[0] = (pModal->ob_01 & 0xf); - ob[1] = (pModal->ob_01 >> 4) & 0xf; - ob[2] = (pModal->ob_234 & 0xf); - ob[3] = ((pModal->ob_234 >> 4) & 0xf); - ob[4] = ((pModal->ob_234 >> 8) & 0xf); - - db1[0] = (pModal->db1_01 & 0xf); - db1[1] = ((pModal->db1_01 >> 4) & 0xf); - db1[2] = (pModal->db1_234 & 0xf); - db1[3] = ((pModal->db1_234 >> 4) & 0xf); - db1[4] = ((pModal->db1_234 >> 8) & 0xf); - - db2[0] = (pModal->db2_01 & 0xf); - db2[1] = ((pModal->db2_01 >> 4) & 0xf); - db2[2] = (pModal->db2_234 & 0xf); - db2[3] = ((pModal->db2_234 >> 4) & 0xf); - db2[4] = ((pModal->db2_234 >> 8) & 0xf); - + ob[0] = pModal->ob_0; + ob[1] = pModal->ob_1; + ob[2] = pModal->ob_2; + ob[3] = pModal->ob_3; + ob[4] = pModal->ob_4; + + db1[0] = pModal->db1_0; + db1[1] = pModal->db1_1; + db1[2] = pModal->db1_2; + db1[3] = pModal->db1_3; + db1[4] = pModal->db1_4; + + db2[0] = pModal->db2_0; + db2[1] = pModal->db2_1; + db2[2] = pModal->db2_2; + db2[3] = pModal->db2_3; + db2[4] = pModal->db2_4; } else if (pModal->version == 1) { - ob[0] = (pModal->ob_01 & 0xf); - ob[1] = ob[2] = ob[3] = ob[4] = (pModal->ob_01 >> 4) & 0xf; - db1[0] = (pModal->db1_01 & 0xf); - db1[1] = db1[2] = db1[3] = - db1[4] = ((pModal->db1_01 >> 4) & 0xf); - db2[0] = (pModal->db2_01 & 0xf); - db2[1] = db2[2] = db2[3] = - db2[4] = ((pModal->db2_01 >> 4) & 0xf); + ob[0] = pModal->ob_0; + ob[1] = ob[2] = ob[3] = ob[4] = pModal->ob_1; + db1[0] = pModal->db1_0; + db1[1] = db1[2] = db1[3] = db1[4] = pModal->db1_1; + db2[0] = pModal->db2_0; + db2[1] = db2[2] = db2[3] = db2[4] = pModal->db2_1; } else { int i; + for (i = 0; i < 5; i++) { - ob[i] = pModal->ob_01; - db1[i] = pModal->db1_01; - db2[i] = pModal->db1_01; + ob[i] = pModal->ob_0; + db1[i] = pModal->db1_0; + db2[i] = pModal->db1_0; } } diff --git a/drivers/net/wireless/ath/ath9k/phy.h b/drivers/net/wireless/ath/ath9k/phy.h index 5317e0503f64..e83cd4ab87f0 100644 --- a/drivers/net/wireless/ath/ath9k/phy.h +++ b/drivers/net/wireless/ath/ath9k/phy.h @@ -419,6 +419,7 @@ bool ath9k_hw_init_rf(struct ath_hw *ah, #define AR_PHY_CCK_DETECT_ANT_SWITCH_TIME 0x00001FC0 #define AR_PHY_CCK_DETECT_ANT_SWITCH_TIME_S 6 #define AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV 0x2000 +#define AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV_S 13 #define AR_PHY_GAIN_2GHZ 0xA20C #define AR_PHY_GAIN_2GHZ_RXTX_MARGIN 0x00FC0000 -- 2.20.1