aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/wireless/ath/ath9k/ani.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ani.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/ani.c81
1 files changed, 41 insertions, 40 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c
index e91725bf401..ba502a2d199 100644
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -46,8 +46,8 @@ static const struct ani_ofdm_level_entry ofdm_level_table[] = {
{ 5, 4, 1 }, /* lvl 5 */
{ 6, 5, 1 }, /* lvl 6 */
{ 7, 6, 1 }, /* lvl 7 */
- { 7, 6, 0 }, /* lvl 8 */
- { 7, 7, 0 } /* lvl 9 */
+ { 7, 7, 1 }, /* lvl 8 */
+ { 7, 8, 0 } /* lvl 9 */
};
#define ATH9K_ANI_OFDM_NUM_LEVEL \
ARRAY_SIZE(ofdm_level_table)
@@ -91,8 +91,8 @@ static const struct ani_cck_level_entry cck_level_table[] = {
{ 4, 0 }, /* lvl 4 */
{ 5, 0 }, /* lvl 5 */
{ 6, 0 }, /* lvl 6 */
- { 6, 0 }, /* lvl 7 (only for high rssi) */
- { 7, 0 } /* lvl 8 (only for high rssi) */
+ { 7, 0 }, /* lvl 7 (only for high rssi) */
+ { 8, 0 } /* lvl 8 (only for high rssi) */
};
#define ATH9K_ANI_CCK_NUM_LEVEL \
@@ -155,6 +155,9 @@ static void ath9k_hw_set_ofdm_nil(struct ath_hw *ah, u8 immunityLevel,
ATH9K_ANI_RSSI_THR_LOW,
ATH9K_ANI_RSSI_THR_HIGH);
+ if (AR_SREV_9100(ah) && immunityLevel < ATH9K_ANI_OFDM_DEF_LEVEL)
+ immunityLevel = ATH9K_ANI_OFDM_DEF_LEVEL;
+
if (!scan)
aniState->ofdmNoiseImmunityLevel = immunityLevel;
@@ -176,11 +179,26 @@ static void ath9k_hw_set_ofdm_nil(struct ath_hw *ah, u8 immunityLevel,
if (ah->opmode == NL80211_IFTYPE_STATION &&
BEACON_RSSI(ah) <= ATH9K_ANI_RSSI_THR_HIGH)
weak_sig = true;
+ /*
+ * Newer chipsets are better at dealing with high PHY error counts -
+ * keep weak signal detection enabled when no RSSI threshold is
+ * available to determine if it is needed (mode != STA)
+ */
+ else if (AR_SREV_9300_20_OR_LATER(ah) &&
+ ah->opmode != NL80211_IFTYPE_STATION)
+ weak_sig = true;
+
+ /* Older chipsets are more sensitive to high PHY error counts */
+ else if (!AR_SREV_9300_20_OR_LATER(ah) &&
+ aniState->ofdmNoiseImmunityLevel >= 8)
+ weak_sig = false;
if (aniState->ofdmWeakSigDetect != weak_sig)
- ath9k_hw_ani_control(ah,
- ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
- entry_ofdm->ofdm_weak_signal_on);
+ ath9k_hw_ani_control(ah, ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
+ weak_sig);
+
+ if (!AR_SREV_9300_20_OR_LATER(ah))
+ return;
if (aniState->ofdmNoiseImmunityLevel >= ATH9K_ANI_OFDM_DEF_LEVEL) {
ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH;
@@ -220,6 +238,9 @@ static void ath9k_hw_set_cck_nil(struct ath_hw *ah, u_int8_t immunityLevel,
BEACON_RSSI(ah), ATH9K_ANI_RSSI_THR_LOW,
ATH9K_ANI_RSSI_THR_HIGH);
+ if (AR_SREV_9100(ah) && immunityLevel < ATH9K_ANI_CCK_DEF_LEVEL)
+ immunityLevel = ATH9K_ANI_CCK_DEF_LEVEL;
+
if (ah->opmode == NL80211_IFTYPE_STATION &&
BEACON_RSSI(ah) <= ATH9K_ANI_RSSI_THR_LOW &&
immunityLevel > ATH9K_ANI_CCK_MAX_LEVEL_LOW_RSSI)
@@ -303,20 +324,6 @@ void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning)
BUG_ON(aniState == NULL);
ah->stats.ast_ani_reset++;
- /* only allow a subset of functions in AP mode */
- if (ah->opmode == NL80211_IFTYPE_AP) {
- if (IS_CHAN_2GHZ(chan)) {
- ah->ani_function = (ATH9K_ANI_SPUR_IMMUNITY_LEVEL |
- ATH9K_ANI_FIRSTEP_LEVEL);
- if (AR_SREV_9300_20_OR_LATER(ah))
- ah->ani_function |= ATH9K_ANI_MRC_CCK;
- } else
- ah->ani_function = 0;
- }
-
- /* always allow mode (on/off) to be controlled */
- ah->ani_function |= ATH9K_ANI_MODE;
-
ofdm_nil = max_t(int, ATH9K_ANI_OFDM_DEF_LEVEL,
aniState->ofdmNoiseImmunityLevel);
cck_nil = max_t(int, ATH9K_ANI_CCK_DEF_LEVEL,
@@ -336,10 +343,9 @@ void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning)
aniState->cckNoiseImmunityLevel !=
ATH9K_ANI_CCK_DEF_LEVEL) {
ath_dbg(common, ANI,
- "Restore defaults: opmode %u chan %d Mhz/0x%x is_scanning=%d ofdm:%d cck:%d\n",
+ "Restore defaults: opmode %u chan %d Mhz is_scanning=%d ofdm:%d cck:%d\n",
ah->opmode,
chan->channel,
- chan->channelFlags,
is_scanning,
aniState->ofdmNoiseImmunityLevel,
aniState->cckNoiseImmunityLevel);
@@ -352,10 +358,9 @@ void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning)
* restore historical levels for this channel
*/
ath_dbg(common, ANI,
- "Restore history: opmode %u chan %d Mhz/0x%x is_scanning=%d ofdm:%d cck:%d\n",
+ "Restore history: opmode %u chan %d Mhz is_scanning=%d ofdm:%d cck:%d\n",
ah->opmode,
chan->channel,
- chan->channelFlags,
is_scanning,
aniState->ofdmNoiseImmunityLevel,
aniState->cckNoiseImmunityLevel);
@@ -363,18 +368,7 @@ void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning)
ath9k_hw_set_ofdm_nil(ah, ofdm_nil, is_scanning);
ath9k_hw_set_cck_nil(ah, cck_nil, is_scanning);
- /*
- * enable phy counters if hw supports or if not, enable phy
- * interrupts (so we can count each one)
- */
ath9k_ani_restart(ah);
-
- ENABLE_REGWRITE_BUFFER(ah);
-
- REG_WRITE(ah, AR_PHY_ERR_MASK_1, AR_PHY_ERR_OFDM_TIMING);
- REG_WRITE(ah, AR_PHY_ERR_MASK_2, AR_PHY_ERR_CCK_TIMING);
-
- REGWRITE_BUFFER_FLUSH(ah);
}
static bool ath9k_hw_ani_read_counters(struct ath_hw *ah)
@@ -494,10 +488,17 @@ void ath9k_hw_ani_init(struct ath_hw *ah)
ath_dbg(common, ANI, "Initialize ANI\n");
- ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH;
- ah->config.ofdm_trig_low = ATH9K_ANI_OFDM_TRIG_LOW;
- ah->config.cck_trig_high = ATH9K_ANI_CCK_TRIG_HIGH;
- ah->config.cck_trig_low = ATH9K_ANI_CCK_TRIG_LOW;
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH;
+ ah->config.ofdm_trig_low = ATH9K_ANI_OFDM_TRIG_LOW;
+ ah->config.cck_trig_high = ATH9K_ANI_CCK_TRIG_HIGH;
+ ah->config.cck_trig_low = ATH9K_ANI_CCK_TRIG_LOW;
+ } else {
+ ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH_OLD;
+ ah->config.ofdm_trig_low = ATH9K_ANI_OFDM_TRIG_LOW_OLD;
+ ah->config.cck_trig_high = ATH9K_ANI_CCK_TRIG_HIGH_OLD;
+ ah->config.cck_trig_low = ATH9K_ANI_CCK_TRIG_LOW_OLD;
+ }
ani->spurImmunityLevel = ATH9K_ANI_SPUR_IMMUNE_LVL;
ani->firstepLevel = ATH9K_ANI_FIRSTEP_LVL;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 04:09:14 +0000