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authorStanislaw Gruszka <stf_xl@wp.pl>2013-03-16 19:19:52 +0100
committerJohn W. Linville <linville@tuxdriver.com>2013-03-18 16:38:35 -0400
commit415e3f2f7bf8bff1a22446c22a7e384c6f429d2a (patch)
tree8c97f0fcecb915277ad9dfdd396dc658cdef9291 /drivers
parent939ec51dc7d055bb2cb8977a4c026d9dc85438dd (diff)
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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.c70
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);
}