rt2x00: Implement tx power temperature compensation
rt2800 devices should adjust their tx power in accordance with the
eeproms temperature calibration values. Add a new driver callback
gain_calibration that is called every 4 seconds.
The rt2800 gain calibration routine simply runs the tx power
configuration that takes care of calculating the temperature
compensation delta.
We don't need to synchronize the calls to rt2800_config_txpower
as they should all happen from mac80211's single threaded workqueue.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
index 70b9abb..3b3d851 100644
--- a/drivers/net/wireless/rt2x00/rt2800.h
+++ b/drivers/net/wireless/rt2x00/rt2800.h
@@ -2104,6 +2104,59 @@
#define EEPROM_TXPOWER_BG_2 FIELD16(0xff00)
/*
+ * EEPROM temperature compensation boundaries 802.11BG
+ * MINUS4: If the actual TSSI is below this boundary, tx power needs to be
+ * reduced by (agc_step * -4)
+ * MINUS3: If the actual TSSI is below this boundary, tx power needs to be
+ * reduced by (agc_step * -3)
+ */
+#define EEPROM_TSSI_BOUND_BG1 0x0037
+#define EEPROM_TSSI_BOUND_BG1_MINUS4 FIELD16(0x00ff)
+#define EEPROM_TSSI_BOUND_BG1_MINUS3 FIELD16(0xff00)
+
+/*
+ * EEPROM temperature compensation boundaries 802.11BG
+ * MINUS2: If the actual TSSI is below this boundary, tx power needs to be
+ * reduced by (agc_step * -2)
+ * MINUS1: If the actual TSSI is below this boundary, tx power needs to be
+ * reduced by (agc_step * -1)
+ */
+#define EEPROM_TSSI_BOUND_BG2 0x0038
+#define EEPROM_TSSI_BOUND_BG2_MINUS2 FIELD16(0x00ff)
+#define EEPROM_TSSI_BOUND_BG2_MINUS1 FIELD16(0xff00)
+
+/*
+ * EEPROM temperature compensation boundaries 802.11BG
+ * REF: Reference TSSI value, no tx power changes needed
+ * PLUS1: If the actual TSSI is above this boundary, tx power needs to be
+ * increased by (agc_step * 1)
+ */
+#define EEPROM_TSSI_BOUND_BG3 0x0039
+#define EEPROM_TSSI_BOUND_BG3_REF FIELD16(0x00ff)
+#define EEPROM_TSSI_BOUND_BG3_PLUS1 FIELD16(0xff00)
+
+/*
+ * EEPROM temperature compensation boundaries 802.11BG
+ * PLUS2: If the actual TSSI is above this boundary, tx power needs to be
+ * increased by (agc_step * 2)
+ * PLUS3: If the actual TSSI is above this boundary, tx power needs to be
+ * increased by (agc_step * 3)
+ */
+#define EEPROM_TSSI_BOUND_BG4 0x003a
+#define EEPROM_TSSI_BOUND_BG4_PLUS2 FIELD16(0x00ff)
+#define EEPROM_TSSI_BOUND_BG4_PLUS3 FIELD16(0xff00)
+
+/*
+ * EEPROM temperature compensation boundaries 802.11BG
+ * PLUS4: If the actual TSSI is above this boundary, tx power needs to be
+ * increased by (agc_step * 4)
+ * AGC_STEP: Temperature compensation step.
+ */
+#define EEPROM_TSSI_BOUND_BG5 0x003b
+#define EEPROM_TSSI_BOUND_BG5_PLUS4 FIELD16(0x00ff)
+#define EEPROM_TSSI_BOUND_BG5_AGC_STEP FIELD16(0xff00)
+
+/*
* EEPROM TXPOWER 802.11A
*/
#define EEPROM_TXPOWER_A1 0x003c
@@ -2113,6 +2166,59 @@
#define EEPROM_TXPOWER_A_2 FIELD16(0xff00)
/*
+ * EEPROM temperature compensation boundaries 802.11A
+ * MINUS4: If the actual TSSI is below this boundary, tx power needs to be
+ * reduced by (agc_step * -4)
+ * MINUS3: If the actual TSSI is below this boundary, tx power needs to be
+ * reduced by (agc_step * -3)
+ */
+#define EEPROM_TSSI_BOUND_A1 0x006a
+#define EEPROM_TSSI_BOUND_A1_MINUS4 FIELD16(0x00ff)
+#define EEPROM_TSSI_BOUND_A1_MINUS3 FIELD16(0xff00)
+
+/*
+ * EEPROM temperature compensation boundaries 802.11A
+ * MINUS2: If the actual TSSI is below this boundary, tx power needs to be
+ * reduced by (agc_step * -2)
+ * MINUS1: If the actual TSSI is below this boundary, tx power needs to be
+ * reduced by (agc_step * -1)
+ */
+#define EEPROM_TSSI_BOUND_A2 0x006b
+#define EEPROM_TSSI_BOUND_A2_MINUS2 FIELD16(0x00ff)
+#define EEPROM_TSSI_BOUND_A2_MINUS1 FIELD16(0xff00)
+
+/*
+ * EEPROM temperature compensation boundaries 802.11A
+ * REF: Reference TSSI value, no tx power changes needed
+ * PLUS1: If the actual TSSI is above this boundary, tx power needs to be
+ * increased by (agc_step * 1)
+ */
+#define EEPROM_TSSI_BOUND_A3 0x006c
+#define EEPROM_TSSI_BOUND_A3_REF FIELD16(0x00ff)
+#define EEPROM_TSSI_BOUND_A3_PLUS1 FIELD16(0xff00)
+
+/*
+ * EEPROM temperature compensation boundaries 802.11A
+ * PLUS2: If the actual TSSI is above this boundary, tx power needs to be
+ * increased by (agc_step * 2)
+ * PLUS3: If the actual TSSI is above this boundary, tx power needs to be
+ * increased by (agc_step * 3)
+ */
+#define EEPROM_TSSI_BOUND_A4 0x006d
+#define EEPROM_TSSI_BOUND_A4_PLUS2 FIELD16(0x00ff)
+#define EEPROM_TSSI_BOUND_A4_PLUS3 FIELD16(0xff00)
+
+/*
+ * EEPROM temperature compensation boundaries 802.11A
+ * PLUS4: If the actual TSSI is above this boundary, tx power needs to be
+ * increased by (agc_step * 4)
+ * AGC_STEP: Temperature compensation step.
+ */
+#define EEPROM_TSSI_BOUND_A5 0x006e
+#define EEPROM_TSSI_BOUND_A5_PLUS4 FIELD16(0x00ff)
+#define EEPROM_TSSI_BOUND_A5_AGC_STEP FIELD16(0xff00)
+
+/*
* EEPROM TXPOWER by rate: tx power per tx rate for HT20 mode
*/
#define EEPROM_TXPOWER_BYRATE 0x006f