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authorFelix Fietkau <nbd@openwrt.org>2010-10-04 20:09:48 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-10-06 16:30:39 -0400
commitbfc472bb736bf309158ea76897d255a283d0d31c (patch)
treeda3df924032d0a3088e3abd38a449bf45446da4a /drivers/net/wireless/ath/ath9k/ani.c
parent093115b7fd641f03d89404252044c976928764cb (diff)
ath9k_hw: remove code duplication in phy error counter handling
Split out the PHY error counter update from ath9k_hw_ani_monitor_*, reuse it in ath9k_hw_proc_mib_event (merged from ath9k_hw_proc_mib_event_old and ath9k_hw_proc_mib_event_new). Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ani.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/ani.c142
1 files changed, 32 insertions, 110 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c
index 6bae601c63a3..d5c9df5c4569 100644
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -661,21 +661,15 @@ static void ath9k_ani_reset_new(struct ath_hw *ah, bool is_scanning)
REGWRITE_BUFFER_FLUSH(ah);
}
-static void ath9k_hw_ani_monitor_old(struct ath_hw *ah,
- struct ath9k_channel *chan)
+static void ath9k_hw_ani_read_counters(struct ath_hw *ah)
{
- struct ar5416AniState *aniState;
struct ath_common *common = ath9k_hw_common(ah);
- int32_t listenTime;
- u32 phyCnt1, phyCnt2;
+ struct ar5416AniState *aniState = &ah->curchan->ani;
+ u32 ofdm_base = 0;
+ u32 cck_base = 0;
u32 ofdmPhyErrCnt, cckPhyErrCnt;
- u32 ofdm_base = AR_PHY_COUNTMAX - ah->config.ofdm_trig_high;
- u32 cck_base = AR_PHY_COUNTMAX - ah->config.cck_trig_high;
-
- if (!DO_ANI(ah))
- return;
-
- aniState = &ah->curchan->ani;
+ u32 phyCnt1, phyCnt2;
+ int32_t listenTime;
listenTime = ath9k_hw_ani_get_listen_time(ah);
if (listenTime < 0) {
@@ -684,6 +678,11 @@ static void ath9k_hw_ani_monitor_old(struct ath_hw *ah,
return;
}
+ if (!use_new_ani(ah)) {
+ ofdm_base = AR_PHY_COUNTMAX - ah->config.ofdm_trig_high;
+ cck_base = AR_PHY_COUNTMAX - ah->config.cck_trig_high;
+ }
+
aniState->listenTime += listenTime;
ath9k_hw_update_mibstats(ah, &ah->ah_mibStats);
@@ -691,7 +690,7 @@ static void ath9k_hw_ani_monitor_old(struct ath_hw *ah,
phyCnt1 = REG_READ(ah, AR_PHY_ERR_1);
phyCnt2 = REG_READ(ah, AR_PHY_ERR_2);
- if (phyCnt1 < ofdm_base || phyCnt2 < cck_base) {
+ if (use_new_ani(ah) && (phyCnt1 < ofdm_base || phyCnt2 < cck_base)) {
if (phyCnt1 < ofdm_base) {
ath_print(common, ATH_DBG_ANI,
"phyCnt1 0x%x, resetting "
@@ -723,6 +722,19 @@ static void ath9k_hw_ani_monitor_old(struct ath_hw *ah,
cckPhyErrCnt - aniState->cckPhyErrCount;
aniState->cckPhyErrCount = cckPhyErrCnt;
+}
+
+static void ath9k_hw_ani_monitor_old(struct ath_hw *ah,
+ struct ath9k_channel *chan)
+{
+ struct ar5416AniState *aniState;
+
+ if (!DO_ANI(ah))
+ return;
+
+ aniState = &ah->curchan->ani;
+ ath9k_hw_ani_read_counters(ah);
+
if (aniState->listenTime > 5 * ah->aniperiod) {
if (aniState->ofdmPhyErrCount <= aniState->listenTime *
ah->config.ofdm_trig_low / 1000 &&
@@ -749,8 +761,6 @@ static void ath9k_hw_ani_monitor_new(struct ath_hw *ah,
{
struct ar5416AniState *aniState;
struct ath_common *common = ath9k_hw_common(ah);
- int32_t listenTime;
- u32 ofdmPhyErrCnt, cckPhyErrCnt;
u32 ofdmPhyErrRate, cckPhyErrRate;
if (!DO_ANI(ah))
@@ -760,35 +770,7 @@ static void ath9k_hw_ani_monitor_new(struct ath_hw *ah,
if (WARN_ON(!aniState))
return;
- listenTime = ath9k_hw_ani_get_listen_time(ah);
- if (listenTime <= 0) {
- ah->stats.ast_ani_lneg++;
- /* restart ANI period if listenTime is invalid */
- ath_print(common, ATH_DBG_ANI,
- "listenTime=%d - on new ani monitor\n",
- listenTime);
- ath9k_ani_restart(ah);
- return;
- }
-
- aniState->listenTime += listenTime;
-
- ath9k_hw_update_mibstats(ah, &ah->ah_mibStats);
-
- ofdmPhyErrCnt = REG_READ(ah, AR_PHY_ERR_1);
- cckPhyErrCnt = REG_READ(ah, AR_PHY_ERR_2);
-
- ah->stats.ast_ani_ofdmerrs +=
- ofdmPhyErrCnt - aniState->ofdmPhyErrCount;
- aniState->ofdmPhyErrCount = ofdmPhyErrCnt;
-
- ah->stats.ast_ani_cckerrs +=
- cckPhyErrCnt - aniState->cckPhyErrCount;
- aniState->cckPhyErrCount = cckPhyErrCnt;
-
- ath_print(common, ATH_DBG_ANI,
- "Errors: OFDM=%d, CCK=%d\n",
- ofdmPhyErrCnt, cckPhyErrCnt);
+ ath9k_hw_ani_read_counters(ah);
ofdmPhyErrRate = aniState->ofdmPhyErrCount * 1000 /
aniState->listenTime;
@@ -798,7 +780,8 @@ static void ath9k_hw_ani_monitor_new(struct ath_hw *ah,
ath_print(common, ATH_DBG_ANI,
"listenTime=%d OFDM:%d errs=%d/s CCK:%d "
"errs=%d/s ofdm_turn=%d\n",
- listenTime, aniState->ofdmNoiseImmunityLevel,
+ aniState->listenTime,
+ aniState->ofdmNoiseImmunityLevel,
ofdmPhyErrRate, aniState->cckNoiseImmunityLevel,
cckPhyErrRate, aniState->ofdmsTurn);
@@ -943,10 +926,8 @@ skip:
* any of the MIB counters overflow/trigger so don't assume we're
* here because a PHY error counter triggered.
*/
-static void ath9k_hw_proc_mib_event_old(struct ath_hw *ah)
+void ath9k_hw_proc_mib_event(struct ath_hw *ah)
{
- u32 ofdm_base = AR_PHY_COUNTMAX - ah->config.ofdm_trig_high;
- u32 cck_base = AR_PHY_COUNTMAX - ah->config.cck_trig_high;
u32 phyCnt1, phyCnt2;
/* Reset these counters regardless */
@@ -973,72 +954,15 @@ static void ath9k_hw_proc_mib_event_old(struct ath_hw *ah)
phyCnt2 = REG_READ(ah, AR_PHY_ERR_2);
if (((phyCnt1 & AR_MIBCNT_INTRMASK) == AR_MIBCNT_INTRMASK) ||
((phyCnt2 & AR_MIBCNT_INTRMASK) == AR_MIBCNT_INTRMASK)) {
- struct ar5416AniState *aniState = &ah->curchan->ani;
- u32 ofdmPhyErrCnt, cckPhyErrCnt;
-
- /* NB: only use ast_ani_*errs with AH_PRIVATE_DIAG */
- ofdmPhyErrCnt = phyCnt1 - ofdm_base;
- ah->stats.ast_ani_ofdmerrs +=
- ofdmPhyErrCnt - aniState->ofdmPhyErrCount;
- aniState->ofdmPhyErrCount = ofdmPhyErrCnt;
- cckPhyErrCnt = phyCnt2 - cck_base;
- ah->stats.ast_ani_cckerrs +=
- cckPhyErrCnt - aniState->cckPhyErrCount;
- aniState->cckPhyErrCount = cckPhyErrCnt;
+ if (!use_new_ani(ah))
+ ath9k_hw_ani_read_counters(ah);
- /*
- * NB: figure out which counter triggered. If both
- * trigger we'll only deal with one as the processing
- * clobbers the error counter so the trigger threshold
- * check will never be true.
- */
- if (aniState->ofdmPhyErrCount > ah->config.ofdm_trig_high)
- ath9k_hw_ani_ofdm_err_trigger_new(ah);
- if (aniState->cckPhyErrCount > ah->config.cck_trig_high)
- ath9k_hw_ani_cck_err_trigger_old(ah);
/* NB: always restart to insure the h/w counters are reset */
ath9k_ani_restart(ah);
}
}
-
-/*
- * Process a MIB interrupt. We may potentially be invoked because
- * any of the MIB counters overflow/trigger so don't assume we're
- * here because a PHY error counter triggered.
- */
-static void ath9k_hw_proc_mib_event_new(struct ath_hw *ah)
-{
- u32 phyCnt1, phyCnt2;
-
- /* Reset these counters regardless */
- REG_WRITE(ah, AR_FILT_OFDM, 0);
- REG_WRITE(ah, AR_FILT_CCK, 0);
- if (!(REG_READ(ah, AR_SLP_MIB_CTRL) & AR_SLP_MIB_PENDING))
- REG_WRITE(ah, AR_SLP_MIB_CTRL, AR_SLP_MIB_CLEAR);
-
- /* Clear the mib counters and save them in the stats */
- ath9k_hw_update_mibstats(ah, &ah->ah_mibStats);
-
- if (!DO_ANI(ah)) {
- /*
- * We must always clear the interrupt cause by
- * resetting the phy error regs.
- */
- REG_WRITE(ah, AR_PHY_ERR_1, 0);
- REG_WRITE(ah, AR_PHY_ERR_2, 0);
- return;
- }
-
- /* NB: these are not reset-on-read */
- phyCnt1 = REG_READ(ah, AR_PHY_ERR_1);
- phyCnt2 = REG_READ(ah, AR_PHY_ERR_2);
-
- /* NB: always restart to insure the h/w counters are reset */
- if (((phyCnt1 & AR_MIBCNT_INTRMASK) == AR_MIBCNT_INTRMASK) ||
- ((phyCnt2 & AR_MIBCNT_INTRMASK) == AR_MIBCNT_INTRMASK))
- ath9k_ani_restart(ah);
-}
+EXPORT_SYMBOL(ath9k_hw_proc_mib_event);
void ath9k_hw_ani_setup(struct ath_hw *ah)
{
@@ -1144,7 +1068,6 @@ void ath9k_hw_attach_ani_ops_old(struct ath_hw *ah)
priv_ops->ani_reset = ath9k_ani_reset_old;
priv_ops->ani_lower_immunity = ath9k_hw_ani_lower_immunity_old;
- ops->ani_proc_mib_event = ath9k_hw_proc_mib_event_old;
ops->ani_monitor = ath9k_hw_ani_monitor_old;
ath_print(ath9k_hw_common(ah), ATH_DBG_ANY, "Using ANI v1\n");
@@ -1158,7 +1081,6 @@ void ath9k_hw_attach_ani_ops_new(struct ath_hw *ah)
priv_ops->ani_reset = ath9k_ani_reset_new;
priv_ops->ani_lower_immunity = ath9k_hw_ani_lower_immunity_new;
- ops->ani_proc_mib_event = ath9k_hw_proc_mib_event_new;
ops->ani_monitor = ath9k_hw_ani_monitor_new;
ath_print(ath9k_hw_common(ah), ATH_DBG_ANY, "Using ANI v2\n");