From: Stanislaw Gruszka <stf_xl@xxxxx>
Based on:
GetIQCalibration()
IQCalibration()
from:
DPO_RT5572_LinuxSTA_2.6.1.3_20121022/chips/rtmp_chip.c
Signed-off-by: Stanislaw Gruszka <stf_xl@xxxxx>
---
drivers/net/wireless/rt2x00/rt2800.h | 55 +++++++++++++++++++++++++++++++
drivers/net/wireless/rt2x00/rt2800lib.c | 41 ++++++++++++++++++++++-
drivers/net/wireless/rt2x00/rt2x00.h | 9 ++++-
3 files changed, 101 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
index 9d18d53..25c94b5 100644
--- a/drivers/net/wireless/rt2x00/rt2800.h
+++ b/drivers/net/wireless/rt2x00/rt2800.h
@@ -2532,6 +2532,61 @@ struct mac_iveiv_entry {
#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.
* arg1: 1: save as much power as possible, 0: save less power.
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 @@ 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 4251835..51922cc 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
*/
--
1.7.4.4
--
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