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path: root/drivers/net/wireless/rt2x00/rt2800lib.c
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Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2800lib.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2800lib.c198
1 files changed, 164 insertions, 34 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index dbf74d07d94..6331c61957a 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -687,6 +687,9 @@ void rt2800_txdone_entry(struct queue_entry *entry, u32 status)
mcs = real_mcs;
}
+ if (aggr == 1 || ampdu == 1)
+ __set_bit(TXDONE_AMPDU, &txdesc.flags);
+
/*
* Ralink has a retry mechanism using a global fallback
* table. We setup this fallback table to try the immediate
@@ -1813,17 +1816,131 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
rt2800_register_read(rt2x00dev, CH_BUSY_STA_SEC, &reg);
}
+static int rt2800_get_gain_calibration_delta(struct rt2x00_dev *rt2x00dev)
+{
+ u8 tssi_bounds[9];
+ u8 current_tssi;
+ u16 eeprom;
+ u8 step;
+ int i;
+
+ /*
+ * Read TSSI boundaries for temperature compensation from
+ * the EEPROM.
+ *
+ * Array idx 0 1 2 3 4 5 6 7 8
+ * Matching Delta value -4 -3 -2 -1 0 +1 +2 +3 +4
+ * Example TSSI bounds 0xF0 0xD0 0xB5 0xA0 0x88 0x45 0x25 0x15 0x00
+ */
+ if (rt2x00dev->curr_band == IEEE80211_BAND_2GHZ) {
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_TSSI_BOUND_BG1, &eeprom);
+ tssi_bounds[0] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_BG1_MINUS4);
+ tssi_bounds[1] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_BG1_MINUS3);
+
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_TSSI_BOUND_BG2, &eeprom);
+ tssi_bounds[2] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_BG2_MINUS2);
+ tssi_bounds[3] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_BG2_MINUS1);
+
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_TSSI_BOUND_BG3, &eeprom);
+ tssi_bounds[4] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_BG3_REF);
+ tssi_bounds[5] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_BG3_PLUS1);
+
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_TSSI_BOUND_BG4, &eeprom);
+ tssi_bounds[6] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_BG4_PLUS2);
+ tssi_bounds[7] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_BG4_PLUS3);
+
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_TSSI_BOUND_BG5, &eeprom);
+ tssi_bounds[8] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_BG5_PLUS4);
+
+ step = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_BG5_AGC_STEP);
+ } else {
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_TSSI_BOUND_A1, &eeprom);
+ tssi_bounds[0] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_A1_MINUS4);
+ tssi_bounds[1] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_A1_MINUS3);
+
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_TSSI_BOUND_A2, &eeprom);
+ tssi_bounds[2] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_A2_MINUS2);
+ tssi_bounds[3] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_A2_MINUS1);
+
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_TSSI_BOUND_A3, &eeprom);
+ tssi_bounds[4] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_A3_REF);
+ tssi_bounds[5] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_A3_PLUS1);
+
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_TSSI_BOUND_A4, &eeprom);
+ tssi_bounds[6] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_A4_PLUS2);
+ tssi_bounds[7] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_A4_PLUS3);
+
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_TSSI_BOUND_A5, &eeprom);
+ tssi_bounds[8] = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_A5_PLUS4);
+
+ step = rt2x00_get_field16(eeprom,
+ EEPROM_TSSI_BOUND_A5_AGC_STEP);
+ }
+
+ /*
+ * Check if temperature compensation is supported.
+ */
+ if (tssi_bounds[4] == 0xff)
+ return 0;
+
+ /*
+ * Read current TSSI (BBP 49).
+ */
+ rt2800_bbp_read(rt2x00dev, 49, &current_tssi);
+
+ /*
+ * Compare TSSI value (BBP49) with the compensation boundaries
+ * from the EEPROM and increase or decrease tx power.
+ */
+ for (i = 0; i <= 3; i++) {
+ if (current_tssi > tssi_bounds[i])
+ break;
+ }
+
+ if (i == 4) {
+ for (i = 8; i >= 5; i--) {
+ if (current_tssi < tssi_bounds[i])
+ break;
+ }
+ }
+
+ return (i - 4) * step;
+}
+
static int rt2800_get_txpower_bw_comp(struct rt2x00_dev *rt2x00dev,
enum ieee80211_band band)
{
u16 eeprom;
u8 comp_en;
u8 comp_type;
- int comp_value;
+ int comp_value = 0;
rt2x00_eeprom_read(rt2x00dev, EEPROM_TXPOWER_DELTA, &eeprom);
- if (eeprom == 0xffff)
+ /*
+ * HT40 compensation not required.
+ */
+ if (eeprom == 0xffff ||
+ !test_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags))
return 0;
if (band == IEEE80211_BAND_2GHZ) {
@@ -1853,11 +1970,9 @@ static int rt2800_get_txpower_bw_comp(struct rt2x00_dev *rt2x00dev,
return comp_value;
}
-static u8 rt2800_compesate_txpower(struct rt2x00_dev *rt2x00dev,
- int is_rate_b,
- enum ieee80211_band band,
- int power_level,
- u8 txpower)
+static u8 rt2800_compensate_txpower(struct rt2x00_dev *rt2x00dev, int is_rate_b,
+ enum ieee80211_band band, int power_level,
+ u8 txpower, int delta)
{
u32 reg;
u16 eeprom;
@@ -1865,14 +1980,10 @@ static u8 rt2800_compesate_txpower(struct rt2x00_dev *rt2x00dev,
u8 eirp_txpower;
u8 eirp_txpower_criterion;
u8 reg_limit;
- int bw_comp = 0;
if (!((band == IEEE80211_BAND_5GHZ) && is_rate_b))
return txpower;
- if (test_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags))
- bw_comp = rt2800_get_txpower_bw_comp(rt2x00dev, band);
-
if (test_bit(CONFIG_SUPPORT_POWER_LIMIT, &rt2x00dev->flags)) {
/*
* Check if eirp txpower exceed txpower_limit.
@@ -1895,18 +2006,19 @@ static u8 rt2800_compesate_txpower(struct rt2x00_dev *rt2x00dev,
EEPROM_EIRP_MAX_TX_POWER_5GHZ);
eirp_txpower = eirp_txpower_criterion + (txpower - criterion) +
- (is_rate_b ? 4 : 0) + bw_comp;
+ (is_rate_b ? 4 : 0) + delta;
reg_limit = (eirp_txpower > power_level) ?
(eirp_txpower - power_level) : 0;
} else
reg_limit = 0;
- return txpower + bw_comp - reg_limit;
+ return txpower + delta - reg_limit;
}
static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev,
- struct ieee80211_conf *conf)
+ enum ieee80211_band band,
+ int power_level)
{
u8 txpower;
u16 eeprom;
@@ -1914,8 +2026,17 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev,
u32 reg;
u8 r1;
u32 offset;
- enum ieee80211_band band = conf->channel->band;
- int power_level = conf->power_level;
+ int delta;
+
+ /*
+ * Calculate HT40 compensation delta
+ */
+ delta = rt2800_get_txpower_bw_comp(rt2x00dev, band);
+
+ /*
+ * calculate temperature compensation delta
+ */
+ delta += rt2800_get_gain_calibration_delta(rt2x00dev);
/*
* set to normal bbp tx power control mode: +/- 0dBm
@@ -1944,8 +2065,8 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev,
*/
txpower = rt2x00_get_field16(eeprom,
EEPROM_TXPOWER_BYRATE_RATE0);
- txpower = rt2800_compesate_txpower(rt2x00dev, is_rate_b, band,
- power_level, txpower);
+ txpower = rt2800_compensate_txpower(rt2x00dev, is_rate_b, band,
+ power_level, txpower, delta);
rt2x00_set_field32(&reg, TX_PWR_CFG_RATE0, txpower);
/*
@@ -1955,8 +2076,8 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev,
*/
txpower = rt2x00_get_field16(eeprom,
EEPROM_TXPOWER_BYRATE_RATE1);
- txpower = rt2800_compesate_txpower(rt2x00dev, is_rate_b, band,
- power_level, txpower);
+ txpower = rt2800_compensate_txpower(rt2x00dev, is_rate_b, band,
+ power_level, txpower, delta);
rt2x00_set_field32(&reg, TX_PWR_CFG_RATE1, txpower);
/*
@@ -1966,8 +2087,8 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev,
*/
txpower = rt2x00_get_field16(eeprom,
EEPROM_TXPOWER_BYRATE_RATE2);
- txpower = rt2800_compesate_txpower(rt2x00dev, is_rate_b, band,
- power_level, txpower);
+ txpower = rt2800_compensate_txpower(rt2x00dev, is_rate_b, band,
+ power_level, txpower, delta);
rt2x00_set_field32(&reg, TX_PWR_CFG_RATE2, txpower);
/*
@@ -1977,8 +2098,8 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev,
*/
txpower = rt2x00_get_field16(eeprom,
EEPROM_TXPOWER_BYRATE_RATE3);
- txpower = rt2800_compesate_txpower(rt2x00dev, is_rate_b, band,
- power_level, txpower);
+ txpower = rt2800_compensate_txpower(rt2x00dev, is_rate_b, band,
+ power_level, txpower, delta);
rt2x00_set_field32(&reg, TX_PWR_CFG_RATE3, txpower);
/* read the next four txpower values */
@@ -1993,8 +2114,8 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev,
*/
txpower = rt2x00_get_field16(eeprom,
EEPROM_TXPOWER_BYRATE_RATE0);
- txpower = rt2800_compesate_txpower(rt2x00dev, is_rate_b, band,
- power_level, txpower);
+ txpower = rt2800_compensate_txpower(rt2x00dev, is_rate_b, band,
+ power_level, txpower, delta);
rt2x00_set_field32(&reg, TX_PWR_CFG_RATE4, txpower);
/*
@@ -2004,8 +2125,8 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev,
*/
txpower = rt2x00_get_field16(eeprom,
EEPROM_TXPOWER_BYRATE_RATE1);
- txpower = rt2800_compesate_txpower(rt2x00dev, is_rate_b, band,
- power_level, txpower);
+ txpower = rt2800_compensate_txpower(rt2x00dev, is_rate_b, band,
+ power_level, txpower, delta);
rt2x00_set_field32(&reg, TX_PWR_CFG_RATE5, txpower);
/*
@@ -2015,8 +2136,8 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev,
*/
txpower = rt2x00_get_field16(eeprom,
EEPROM_TXPOWER_BYRATE_RATE2);
- txpower = rt2800_compesate_txpower(rt2x00dev, is_rate_b, band,
- power_level, txpower);
+ txpower = rt2800_compensate_txpower(rt2x00dev, is_rate_b, band,
+ power_level, txpower, delta);
rt2x00_set_field32(&reg, TX_PWR_CFG_RATE6, txpower);
/*
@@ -2026,8 +2147,8 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev,
*/
txpower = rt2x00_get_field16(eeprom,
EEPROM_TXPOWER_BYRATE_RATE3);
- txpower = rt2800_compesate_txpower(rt2x00dev, is_rate_b, band,
- power_level, txpower);
+ txpower = rt2800_compensate_txpower(rt2x00dev, is_rate_b, band,
+ power_level, txpower, delta);
rt2x00_set_field32(&reg, TX_PWR_CFG_RATE7, txpower);
rt2800_register_write(rt2x00dev, offset, reg);
@@ -2037,6 +2158,13 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev,
}
}
+void rt2800_gain_calibration(struct rt2x00_dev *rt2x00dev)
+{
+ rt2800_config_txpower(rt2x00dev, rt2x00dev->curr_band,
+ rt2x00dev->tx_power);
+}
+EXPORT_SYMBOL_GPL(rt2800_gain_calibration);
+
static void rt2800_config_retry_limit(struct rt2x00_dev *rt2x00dev,
struct rt2x00lib_conf *libconf)
{
@@ -2090,10 +2218,12 @@ void rt2800_config(struct rt2x00_dev *rt2x00dev,
if (flags & IEEE80211_CONF_CHANGE_CHANNEL) {
rt2800_config_channel(rt2x00dev, libconf->conf,
&libconf->rf, &libconf->channel);
- rt2800_config_txpower(rt2x00dev, libconf->conf);
+ rt2800_config_txpower(rt2x00dev, libconf->conf->channel->band,
+ libconf->conf->power_level);
}
if (flags & IEEE80211_CONF_CHANGE_POWER)
- rt2800_config_txpower(rt2x00dev, libconf->conf);
+ rt2800_config_txpower(rt2x00dev, libconf->conf->channel->band,
+ libconf->conf->power_level);
if (flags & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
rt2800_config_retry_limit(rt2x00dev, libconf);
if (flags & IEEE80211_CONF_CHANGE_PS)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-22 09:06:34 +0000