diff options
author | Gertjan van Wingerde <gwingerde@gmail.com> | 2012-02-06 22:45:13 (GMT) |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2012-02-08 20:26:32 (GMT) |
commit | 77c06c2cb44fe68295efdd33939153c7d56de004 (patch) | |
tree | 5cc53e6ca49852e6c44226f0645822ea8a62b42e /drivers | |
parent | 58b8ae14d58319bff63a30a9e1c0ebb9c07f2243 (diff) | |
download | linux-fsl-qoriq-77c06c2cb44fe68295efdd33939153c7d56de004.tar.xz |
rt2x00: Correctly set txmixer_gain in RT3572 channel switching.
Align with the v2.5.0.0 Ralink RT3572 driver.
Save the EEPROM txmixer_gain values inside the rt2800 driver data structure
and use it throughout the code.
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/wireless/rt2x00/rt2800.h | 13 | ||||
-rw-r--r-- | drivers/net/wireless/rt2x00/rt2800lib.c | 34 |
2 files changed, 40 insertions, 7 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h index c6648b0..06acabd 100644 --- a/drivers/net/wireless/rt2x00/rt2800.h +++ b/drivers/net/wireless/rt2x00/rt2800.h @@ -1849,6 +1849,11 @@ struct mac_iveiv_entry { #define RFCSR15_TX_LO2_EN FIELD8(0x08) /* + * RFCSR 16: + */ +#define RFCSR16_TXMIXER_GAIN FIELD8(0x07) + +/* * RFCSR 17: */ #define RFCSR17_TXMIXER_GAIN FIELD8(0x07) @@ -2111,6 +2116,12 @@ struct mac_iveiv_entry { #define EEPROM_RSSI_A2_LNA_A2 FIELD16(0xff00) /* + * EEPROM TXMIXER GAIN A offset (note overlaps with EEPROM RSSI A2). + */ +#define EEPROM_TXMIXER_GAIN_A 0x0026 +#define EEPROM_TXMIXER_GAIN_A_VAL FIELD16(0x0007) + +/* * EEPROM EIRP Maximum TX power values(unit: dbm) */ #define EEPROM_EIRP_MAX_TX_POWER 0x0027 @@ -2448,6 +2459,8 @@ struct rt2800_drv_data { u8 calibration_bw40; u8 bbp25; u8 bbp26; + u8 txmixer_gain_24g; + u8 txmixer_gain_5g; }; #endif /* RT2800_H */ diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index 395453c..52728be 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -1856,7 +1856,10 @@ static void rt2800_config_channel_rf3052(struct rt2x00_dev *rt2x00dev, rt2800_rfcsr_write(rt2x00dev, 10, 0xf1); rt2800_rfcsr_write(rt2x00dev, 11, 0xb9); rt2800_rfcsr_write(rt2x00dev, 15, 0x53); - rt2800_rfcsr_write(rt2x00dev, 16, 0x4c); + rfcsr = 0x4c; + rt2x00_set_field8(&rfcsr, RFCSR16_TXMIXER_GAIN, + drv_data->txmixer_gain_24g); + rt2800_rfcsr_write(rt2x00dev, 16, rfcsr); rt2800_rfcsr_write(rt2x00dev, 17, 0x23); rt2800_rfcsr_write(rt2x00dev, 19, 0x93); rt2800_rfcsr_write(rt2x00dev, 20, 0xb3); @@ -1875,7 +1878,10 @@ static void rt2800_config_channel_rf3052(struct rt2x00_dev *rt2x00dev, rt2800_rfcsr_write(rt2x00dev, 10, 0xf1); rt2800_rfcsr_write(rt2x00dev, 11, 0x00); rt2800_rfcsr_write(rt2x00dev, 15, 0x43); - rt2800_rfcsr_write(rt2x00dev, 16, 0x7a); + rfcsr = 0x7a; + rt2x00_set_field8(&rfcsr, RFCSR16_TXMIXER_GAIN, + drv_data->txmixer_gain_5g); + rt2800_rfcsr_write(rt2x00dev, 16, rfcsr); rt2800_rfcsr_write(rt2x00dev, 17, 0x23); if (rf->channel <= 64) { rt2800_rfcsr_write(rt2x00dev, 19, 0xb7); @@ -3672,11 +3678,8 @@ static int rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev) &rt2x00dev->cap_flags)) rt2x00_set_field8(&rfcsr, RFCSR17_R, 1); } - rt2x00_eeprom_read(rt2x00dev, EEPROM_TXMIXER_GAIN_BG, &eeprom); - if (rt2x00_get_field16(eeprom, EEPROM_TXMIXER_GAIN_BG_VAL) >= 1) - rt2x00_set_field8(&rfcsr, RFCSR17_TXMIXER_GAIN, - rt2x00_get_field16(eeprom, - EEPROM_TXMIXER_GAIN_BG_VAL)); + rt2x00_set_field8(&rfcsr, RFCSR17_TXMIXER_GAIN, + drv_data->txmixer_gain_24g); rt2800_rfcsr_write(rt2x00dev, 17, rfcsr); } @@ -3884,6 +3887,7 @@ EXPORT_SYMBOL_GPL(rt2800_read_eeprom_efuse); int rt2800_validate_eeprom(struct rt2x00_dev *rt2x00dev) { + struct rt2800_drv_data *drv_data = rt2x00dev->drv_data; u16 word; u8 *mac; u8 default_lna_gain; @@ -3967,6 +3971,14 @@ int rt2800_validate_eeprom(struct rt2x00_dev *rt2x00dev) rt2x00_set_field16(&word, EEPROM_RSSI_BG_OFFSET1, 0); rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_BG, word); + rt2x00_eeprom_read(rt2x00dev, EEPROM_TXMIXER_GAIN_BG, &word); + if ((word & 0x00ff) != 0x00ff) { + drv_data->txmixer_gain_24g = + rt2x00_get_field16(word, EEPROM_TXMIXER_GAIN_BG_VAL); + } else { + drv_data->txmixer_gain_24g = 0; + } + rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_BG2, &word); if (abs(rt2x00_get_field16(word, EEPROM_RSSI_BG2_OFFSET2)) > 10) rt2x00_set_field16(&word, EEPROM_RSSI_BG2_OFFSET2, 0); @@ -3976,6 +3988,14 @@ int rt2800_validate_eeprom(struct rt2x00_dev *rt2x00dev) default_lna_gain); rt2x00_eeprom_write(rt2x00dev, EEPROM_RSSI_BG2, word); + rt2x00_eeprom_read(rt2x00dev, EEPROM_TXMIXER_GAIN_A, &word); + if ((word & 0x00ff) != 0x00ff) { + drv_data->txmixer_gain_5g = + rt2x00_get_field16(word, EEPROM_TXMIXER_GAIN_A_VAL); + } else { + drv_data->txmixer_gain_5g = 0; + } + rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_A, &word); if (abs(rt2x00_get_field16(word, EEPROM_RSSI_A_OFFSET0)) > 10) rt2x00_set_field16(&word, EEPROM_RSSI_A_OFFSET0, 0); |