--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c @@ -8349,6 +8349,58 @@ static void rt2800_init_rfcsr_5592(struc rt2800_led_open_drain_enable(rt2x00dev); } +void rt2800_rf_self_txdc_cal(struct rt2x00_dev *rt2x00dev) +{ + u8 rfb5r1_org, rfb7r1_org, rfvalue; + u32 mac0518, mac051c, mac0528, mac052c; + u8 i; + + rt2x00_info(rt2x00dev, "RF Tx self calibration start\n"); + mac0518 = rt2800_register_read(rt2x00dev, RF_CONTROL0); + mac051c = rt2800_register_read(rt2x00dev, RF_BYPASS0); + mac0528 = rt2800_register_read(rt2x00dev, RF_CONTROL2); + mac052c = rt2800_register_read(rt2x00dev, RF_BYPASS2); + + rt2800_register_write(rt2x00dev, RF_BYPASS0, 0x0); + rt2800_register_write(rt2x00dev, RF_BYPASS2, 0x0); + + rt2800_register_write(rt2x00dev, RF_CONTROL0, 0xC); + rt2800_register_write(rt2x00dev, RF_BYPASS0, 0x3306); + rt2800_register_write(rt2x00dev, RF_CONTROL2, 0x3330); + rt2800_register_write(rt2x00dev, RF_BYPASS2, 0xfffff); + rfb5r1_org = rt2800_rfcsr_read_bank(rt2x00dev, 5, 1); + rfb7r1_org = rt2800_rfcsr_read_bank(rt2x00dev, 7, 1); + + rt2800_rfcsr_write_bank(rt2x00dev, 5, 1, 0x4); + for (i = 0; i < 100; i = i + 1) { + udelay(50); + rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 5, 1); + if((rfvalue & 0x04) != 0x4) + break; + } + rt2800_rfcsr_write_bank(rt2x00dev, 5, 1, rfb5r1_org); + + rt2800_rfcsr_write_bank(rt2x00dev, 7, 1, 0x4); + for (i = 0; i < 100; i = i + 1) { + udelay(50); + rfvalue = rt2800_rfcsr_read_bank(rt2x00dev, 7, 1); + if((rfvalue & 0x04) != 0x4) + break; + } + rt2800_rfcsr_write_bank(rt2x00dev, 7, 1, rfb7r1_org); + + rt2800_register_write(rt2x00dev, RF_BYPASS0, 0x0); + rt2800_register_write(rt2x00dev, RF_BYPASS2, 0x0); + rt2800_register_write(rt2x00dev, RF_CONTROL0, mac0518); + rt2800_register_write(rt2x00dev, RF_BYPASS0, mac051c); + rt2800_register_write(rt2x00dev, RF_CONTROL2, mac0528); + rt2800_register_write(rt2x00dev, RF_BYPASS2, mac052c); + + rt2x00_info(rt2x00dev, "RF Tx self calibration end\n"); + +} +EXPORT_SYMBOL_GPL(rt2800_rf_self_txdc_cal); + static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev, bool set_bw, bool is_ht40) { @@ -8956,6 +9008,7 @@ static void rt2800_init_rfcsr_6352(struc rt2800_rfcsr_write_dccal(rt2x00dev, 5, 0x00); rt2800_rfcsr_write_dccal(rt2x00dev, 17, 0x7C); + rt2800_rf_self_txdc_cal(rt2x00dev); rt2800_bw_filter_calibration(rt2x00dev, true); rt2800_bw_filter_calibration(rt2x00dev, false); } --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.h +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.h @@ -243,6 +243,7 @@ void rt2800_link_tuner(struct rt2x00_dev const u32 count); void rt2800_gain_calibration(struct rt2x00_dev *rt2x00dev); void rt2800_vco_calibration(struct rt2x00_dev *rt2x00dev); +void rt2800_rf_self_txdc_cal(struct rt2x00_dev *rt2x00dev); int rt2800_enable_radio(struct rt2x00_dev *rt2x00dev); void rt2800_disable_radio(struct rt2x00_dev *rt2x00dev); --- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h @@ -572,6 +572,7 @@ struct rt2x00lib_ops { struct link_qual *qual, const u32 count); void (*gain_calibration) (struct rt2x00_dev *rt2x00dev); void (*vco_calibration) (struct rt2x00_dev *rt2x00dev); + void (*rf_self_txdc_cal) (struct rt2x00_dev *rt2x00dev); /* * Data queue handlers.