rt2800: 5592: add iq calibration
Based on:
GetIQCalibration()
IQCalibration()
from:
DPO_RT5572_LinuxSTA_2.6.1.3_20121022/chips/rtmp_chip.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>
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index c990ab8..e96ea32 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -527,8 +527,10 @@
*/
rt2800_register_write(rt2x00dev, H2M_BBP_AGENT, 0);
rt2800_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
- if (rt2x00_is_usb(rt2x00dev))
+ if (rt2x00_is_usb(rt2x00dev)) {
rt2800_register_write(rt2x00dev, H2M_INT_SRC, 0);
+ rt2800_mcu_request(rt2x00dev, MCU_BOOT_SIGNAL, 0, 0, 0);
+ }
msleep(1);
return 0;
@@ -2456,6 +2458,41 @@
rt2800_bbp_write(rt2x00dev, 196, (rf->channel <= 14) ? 0x19 : 0x7F);
}
+static void rt2800_iq_calibrate(struct rt2x00_dev *rt2x00dev, int channel)
+{
+ u8 cal;
+
+ /* TODO */
+ if (WARN_ON_ONCE(channel > 14))
+ return;
+
+ rt2800_bbp_write(rt2x00dev, 158, 0x2c);
+ cal = rt2x00_eeprom_byte(rt2x00dev, EEPROM_IQ_GAIN_CAL_TX0_2G);
+ rt2800_bbp_write(rt2x00dev, 159, cal);
+
+ rt2800_bbp_write(rt2x00dev, 158, 0x2d);
+ cal = rt2x00_eeprom_byte(rt2x00dev, EEPROM_IQ_PHASE_CAL_TX0_2G);
+ rt2800_bbp_write(rt2x00dev, 159, cal);
+
+ rt2800_bbp_write(rt2x00dev, 158, 0x4a);
+ cal = rt2x00_eeprom_byte(rt2x00dev, EEPROM_IQ_GAIN_CAL_TX1_2G);
+ rt2800_bbp_write(rt2x00dev, 159, cal);
+
+ rt2800_bbp_write(rt2x00dev, 158, 0x4b);
+ cal = rt2x00_eeprom_byte(rt2x00dev, EEPROM_IQ_PHASE_CAL_TX1_2G);
+ rt2800_bbp_write(rt2x00dev, 159, cal);
+
+ /* RF IQ compensation control */
+ rt2800_bbp_write(rt2x00dev, 158, 0x04);
+ cal = rt2x00_eeprom_byte(rt2x00dev, EEPROM_RF_IQ_COMPENSATION_CONTROL);
+ rt2800_bbp_write(rt2x00dev, 159, cal != 0xff ? cal : 0);
+
+ /* RF IQ imbalance compensation control */
+ rt2800_bbp_write(rt2x00dev, 158, 0x03);
+ cal = rt2x00_eeprom_byte(rt2x00dev, EEPROM_RF_IQ_IMBALANCE_COMPENSATION_CONTROL);
+ rt2800_bbp_write(rt2x00dev, 159, cal != 0xff ? cal : 0);
+}
+
static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
struct ieee80211_conf *conf,
struct rf_channel *rf,
@@ -2606,7 +2643,7 @@
rt2800_bbp_write(rt2x00dev, 196, conf_is_ht40(conf) ? 0x10 : 0x1a);
/* TODO AGC adjust */
- /* TODO IQ calibration */
+ rt2800_iq_calibrate(rt2x00dev, rf->channel);
}
rt2800_bbp_read(rt2x00dev, 4, &bbp);