diff options
| author |   Stanislaw Gruszka <stf_xl@wp.pl> | 2013-03-16 19:19:52 +0100 |
|---|---|---|
| committer |   John W. Linville <linville@tuxdriver.com> | 2013-03-18 16:38:35 -0400 |
| commit | 415e3f2f7bf8bff1a22446c22a7e384c6f429d2a (patch) | |
| tree | 8c97f0fcecb915277ad9dfdd396dc658cdef9291 /drivers | |
| parent | rt2800: 5592: add Kconfig (diff) | |
| download | linux-dev-415e3f2f7bf8bff1a22446c22a7e384c6f429d2a.tar.xz linux-dev-415e3f2f7bf8bff1a22446c22a7e384c6f429d2a.zip | |
rt2800: 5592: iq calibration for 5GHz
Based on:
RT5592_IQCalibration()
DPO_RT5572_LinuxSTA_2.6.1.3_20121022/cips/rt5592.c
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Tested-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800lib.c | 70 |
1 files changed, 60 insertions, 10 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index 9b1f293b4833..f08a0424fe4d 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -2468,31 +2468,80 @@ static void rt2800_bbp_write_with_rx_chain(struct rt2x00_dev *rt2x00dev, } } - static void rt2800_iq_calibrate(struct rt2x00_dev *rt2x00dev, int channel) { u8 cal; - /* TODO */ - if (WARN_ON_ONCE(channel > 14)) - return; - + /* TX0 IQ Gain */ rt2800_bbp_write(rt2x00dev, 158, 0x2c); - cal = rt2x00_eeprom_byte(rt2x00dev, EEPROM_IQ_GAIN_CAL_TX0_2G); + if (channel <= 14) + cal = rt2x00_eeprom_byte(rt2x00dev, EEPROM_IQ_GAIN_CAL_TX0_2G); + else if (channel >= 36 && channel <= 64) + cal = rt2x00_eeprom_byte(rt2x00dev, + EEPROM_IQ_GAIN_CAL_TX0_CH36_TO_CH64_5G); + else if (channel >= 100 && channel <= 138) + cal = rt2x00_eeprom_byte(rt2x00dev, + EEPROM_IQ_GAIN_CAL_TX0_CH100_TO_CH138_5G); + else if (channel >= 140 && channel <= 165) + cal = rt2x00_eeprom_byte(rt2x00dev, + EEPROM_IQ_GAIN_CAL_TX0_CH140_TO_CH165_5G); + else + cal = 0; rt2800_bbp_write(rt2x00dev, 159, cal); + /* TX0 IQ Phase */ rt2800_bbp_write(rt2x00dev, 158, 0x2d); - cal = rt2x00_eeprom_byte(rt2x00dev, EEPROM_IQ_PHASE_CAL_TX0_2G); + if (channel <= 14) + cal = rt2x00_eeprom_byte(rt2x00dev, EEPROM_IQ_PHASE_CAL_TX0_2G); + else if (channel >= 36 && channel <= 64) + cal = rt2x00_eeprom_byte(rt2x00dev, + EEPROM_IQ_PHASE_CAL_TX0_CH36_TO_CH64_5G); + else if (channel >= 100 && channel <= 138) + cal = rt2x00_eeprom_byte(rt2x00dev, + EEPROM_IQ_PHASE_CAL_TX0_CH100_TO_CH138_5G); + else if (channel >= 140 && channel <= 165) + cal = rt2x00_eeprom_byte(rt2x00dev, + EEPROM_IQ_PHASE_CAL_TX0_CH140_TO_CH165_5G); + else + cal = 0; rt2800_bbp_write(rt2x00dev, 159, cal); + /* TX1 IQ Gain */ rt2800_bbp_write(rt2x00dev, 158, 0x4a); - cal = rt2x00_eeprom_byte(rt2x00dev, EEPROM_IQ_GAIN_CAL_TX1_2G); + if (channel <= 14) + cal = rt2x00_eeprom_byte(rt2x00dev, EEPROM_IQ_GAIN_CAL_TX1_2G); + else if (channel >= 36 && channel <= 64) + cal = rt2x00_eeprom_byte(rt2x00dev, + EEPROM_IQ_GAIN_CAL_TX1_CH36_TO_CH64_5G); + else if (channel >= 100 && channel <= 138) + cal = rt2x00_eeprom_byte(rt2x00dev, + EEPROM_IQ_GAIN_CAL_TX1_CH100_TO_CH138_5G); + else if (channel >= 140 && channel <= 165) + cal = rt2x00_eeprom_byte(rt2x00dev, + EEPROM_IQ_GAIN_CAL_TX1_CH140_TO_CH165_5G); + else + cal = 0; rt2800_bbp_write(rt2x00dev, 159, cal); + /* TX1 IQ Phase */ rt2800_bbp_write(rt2x00dev, 158, 0x4b); - cal = rt2x00_eeprom_byte(rt2x00dev, EEPROM_IQ_PHASE_CAL_TX1_2G); + if (channel <= 14) + cal = rt2x00_eeprom_byte(rt2x00dev, EEPROM_IQ_PHASE_CAL_TX1_2G); + else if (channel >= 36 && channel <= 64) + cal = rt2x00_eeprom_byte(rt2x00dev, + EEPROM_IQ_PHASE_CAL_TX1_CH36_TO_CH64_5G); + else if (channel >= 100 && channel <= 138) + cal = rt2x00_eeprom_byte(rt2x00dev, + EEPROM_IQ_PHASE_CAL_TX1_CH100_TO_CH138_5G); + else if (channel >= 140 && channel <= 165) + cal = rt2x00_eeprom_byte(rt2x00dev, + EEPROM_IQ_PHASE_CAL_TX1_CH140_TO_CH165_5G); + else + cal = 0; rt2800_bbp_write(rt2x00dev, 159, cal); + /* FIXME: possible RX0, RX1 callibration ? */ + /* RF IQ compensation control */ rt2800_bbp_write(rt2x00dev, 158, 0x04); cal = rt2x00_eeprom_byte(rt2x00dev, EEPROM_RF_IQ_COMPENSATION_CONTROL); @@ -2500,7 +2549,8 @@ static void rt2800_iq_calibrate(struct rt2x00_dev *rt2x00dev, int channel) /* RF IQ imbalance compensation control */ rt2800_bbp_write(rt2x00dev, 158, 0x03); - cal = rt2x00_eeprom_byte(rt2x00dev, EEPROM_RF_IQ_IMBALANCE_COMPENSATION_CONTROL); + cal = rt2x00_eeprom_byte(rt2x00dev, + EEPROM_RF_IQ_IMBALANCE_COMPENSATION_CONTROL); rt2800_bbp_write(rt2x00dev, 159, cal != 0xff ? cal : 0); } |