From: Stanislaw Gruszka Date: Sat, 16 Mar 2013 18:19:45 +0000 (+0100) Subject: rt2800: 5592: add iq calibration X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=8756130bf3fb9e4adc96bb6bc4774573e261c5b7;p=openwrt%2Fstaging%2Fblogic.git 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 Tested-by: Wanlong Gao Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h index 9d18d5384be7..25c94b596e93 100644 --- a/drivers/net/wireless/rt2x00/rt2800.h +++ b/drivers/net/wireless/rt2x00/rt2800.h @@ -2531,6 +2531,61 @@ struct mac_iveiv_entry { #define EEPROM_BBP_VALUE FIELD16(0x00ff) #define EEPROM_BBP_REG_ID FIELD16(0xff00) +/* + * EEPROM IQ Calibration, unlike other entries those are byte addresses. + */ + +#define EEPROM_IQ_GAIN_CAL_TX0_2G 0x130 +#define EEPROM_IQ_PHASE_CAL_TX0_2G 0x131 +#define EEPROM_IQ_GROUPDELAY_CAL_TX0_2G 0x132 +#define EEPROM_IQ_GAIN_CAL_TX1_2G 0x133 +#define EEPROM_IQ_PHASE_CAL_TX1_2G 0x134 +#define EEPROM_IQ_GROUPDELAY_CAL_TX1_2G 0x135 +#define EEPROM_IQ_GAIN_CAL_RX0_2G 0x136 +#define EEPROM_IQ_PHASE_CAL_RX0_2G 0x137 +#define EEPROM_IQ_GROUPDELAY_CAL_RX0_2G 0x138 +#define EEPROM_IQ_GAIN_CAL_RX1_2G 0x139 +#define EEPROM_IQ_PHASE_CAL_RX1_2G 0x13A +#define EEPROM_IQ_GROUPDELAY_CAL_RX1_2G 0x13B +#define EEPROM_RF_IQ_COMPENSATION_CONTROL 0x13C +#define EEPROM_RF_IQ_IMBALANCE_COMPENSATION_CONTROL 0x13D +#define EEPROM_IQ_GAIN_CAL_TX0_CH36_TO_CH64_5G 0x144 +#define EEPROM_IQ_PHASE_CAL_TX0_CH36_TO_CH64_5G 0x145 +#define EEPROM_IQ_GAIN_CAL_TX0_CH100_TO_CH138_5G 0X146 +#define EEPROM_IQ_PHASE_CAL_TX0_CH100_TO_CH138_5G 0x147 +#define EEPROM_IQ_GAIN_CAL_TX0_CH140_TO_CH165_5G 0x148 +#define EEPROM_IQ_PHASE_CAL_TX0_CH140_TO_CH165_5G 0x149 +#define EEPROM_IQ_GAIN_CAL_TX1_CH36_TO_CH64_5G 0x14A +#define EEPROM_IQ_PHASE_CAL_TX1_CH36_TO_CH64_5G 0x14B +#define EEPROM_IQ_GAIN_CAL_TX1_CH100_TO_CH138_5G 0X14C +#define EEPROM_IQ_PHASE_CAL_TX1_CH100_TO_CH138_5G 0x14D +#define EEPROM_IQ_GAIN_CAL_TX1_CH140_TO_CH165_5G 0x14E +#define EEPROM_IQ_PHASE_CAL_TX1_CH140_TO_CH165_5G 0x14F +#define EEPROM_IQ_GROUPDELAY_CAL_TX0_CH36_TO_CH64_5G 0x150 +#define EEPROM_IQ_GROUPDELAY_CAL_TX1_CH36_TO_CH64_5G 0x151 +#define EEPROM_IQ_GROUPDELAY_CAL_TX0_CH100_TO_CH138_5G 0x152 +#define EEPROM_IQ_GROUPDELAY_CAL_TX1_CH100_TO_CH138_5G 0x153 +#define EEPROM_IQ_GROUPDELAY_CAL_TX0_CH140_TO_CH165_5G 0x154 +#define EEPROM_IQ_GROUPDELAY_CAL_TX1_CH140_TO_CH165_5G 0x155 +#define EEPROM_IQ_GAIN_CAL_RX0_CH36_TO_CH64_5G 0x156 +#define EEPROM_IQ_PHASE_CAL_RX0_CH36_TO_CH64_5G 0x157 +#define EEPROM_IQ_GAIN_CAL_RX0_CH100_TO_CH138_5G 0X158 +#define EEPROM_IQ_PHASE_CAL_RX0_CH100_TO_CH138_5G 0x159 +#define EEPROM_IQ_GAIN_CAL_RX0_CH140_TO_CH165_5G 0x15A +#define EEPROM_IQ_PHASE_CAL_RX0_CH140_TO_CH165_5G 0x15B +#define EEPROM_IQ_GAIN_CAL_RX1_CH36_TO_CH64_5G 0x15C +#define EEPROM_IQ_PHASE_CAL_RX1_CH36_TO_CH64_5G 0x15D +#define EEPROM_IQ_GAIN_CAL_RX1_CH100_TO_CH138_5G 0X15E +#define EEPROM_IQ_PHASE_CAL_RX1_CH100_TO_CH138_5G 0x15F +#define EEPROM_IQ_GAIN_CAL_RX1_CH140_TO_CH165_5G 0x160 +#define EEPROM_IQ_PHASE_CAL_RX1_CH140_TO_CH165_5G 0x161 +#define EEPROM_IQ_GROUPDELAY_CAL_RX0_CH36_TO_CH64_5G 0x162 +#define EEPROM_IQ_GROUPDELAY_CAL_RX1_CH36_TO_CH64_5G 0x163 +#define EEPROM_IQ_GROUPDELAY_CAL_RX0_CH100_TO_CH138_5G 0x164 +#define EEPROM_IQ_GROUPDELAY_CAL_RX1_CH100_TO_CH138_5G 0x165 +#define EEPROM_IQ_GROUPDELAY_CAL_RX0_CH140_TO_CH165_5G 0x166 +#define EEPROM_IQ_GROUPDELAY_CAL_RX1_CH140_TO_CH165_5G 0x167 + /* * MCU mailbox commands. * MCU_SLEEP - go to power-save mode. diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index c990ab8b1d24..e96ea3298c7c 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -527,8 +527,10 @@ int rt2800_load_firmware(struct rt2x00_dev *rt2x00dev, */ 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 @@ static void rt2800_config_channel_rf55xx(struct rt2x00_dev *rt2x00dev, 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 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev, 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); diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index 425183570f35..51922cc179de 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -1065,8 +1065,7 @@ static inline void rt2x00_rf_write(struct rt2x00_dev *rt2x00dev, } /* - * Generic EEPROM access. - * The EEPROM is being accessed by word index. + * Generic EEPROM access. The EEPROM is being accessed by word or byte index. */ static inline void *rt2x00_eeprom_addr(struct rt2x00_dev *rt2x00dev, const unsigned int word) @@ -1086,6 +1085,12 @@ static inline void rt2x00_eeprom_write(struct rt2x00_dev *rt2x00dev, rt2x00dev->eeprom[word] = cpu_to_le16(data); } +static inline u8 rt2x00_eeprom_byte(struct rt2x00_dev *rt2x00dev, + const unsigned int byte) +{ + return *(((u8 *)rt2x00dev->eeprom) + byte); +} + /* * Chipset handlers */