lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ath9k: Clean antenna configuration for 4K EEPROM chips

Browse Source 
This patch revamps the antenna configuration mechanism
for 4K chips.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith 2009-08-07 09:45:23 +05:30 committed by John W. Linville
parent 066edc80eb
commit 7f63845f2a
3 changed files with 82 additions and 51 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
drivers/net/wireless/ath/ath9k/eeprom.h
View File

@ -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;

99
drivers/net/wireless/ath/ath9k/eeprom_4k.c
View File

@ -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);
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_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);
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;
}
}

1
drivers/net/wireless/ath/ath9k/phy.h
View File

@ -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