aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/ath/ath9k/main.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/main.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c411
1 files changed, 156 insertions, 255 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index abfa0493236f..c8de50fa6378 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -51,13 +51,11 @@ static void ath_cache_conf_rate(struct ath_softc *sc,
static void ath_update_txpow(struct ath_softc *sc)
{
struct ath_hw *ah = sc->sc_ah;
- u32 txpow;
if (sc->curtxpow != sc->config.txpowlimit) {
ath9k_hw_set_txpowerlimit(ah, sc->config.txpowlimit);
/* read back in case value is clamped */
- ath9k_hw_getcapability(ah, ATH9K_CAP_TXPOW, 1, &txpow);
- sc->curtxpow = txpow;
+ sc->curtxpow = ath9k_hw_regulatory(ah)->power_limit;
}
}
@@ -232,6 +230,113 @@ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
return r;
}
+static void ath_paprd_activate(struct ath_softc *sc)
+{
+ struct ath_hw *ah = sc->sc_ah;
+ int chain;
+
+ if (!ah->curchan->paprd_done)
+ return;
+
+ ath9k_ps_wakeup(sc);
+ for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) {
+ if (!(ah->caps.tx_chainmask & BIT(chain)))
+ continue;
+
+ ar9003_paprd_populate_single_table(ah, ah->curchan, chain);
+ }
+
+ ar9003_paprd_enable(ah, true);
+ ath9k_ps_restore(sc);
+}
+
+void ath_paprd_calibrate(struct work_struct *work)
+{
+ struct ath_softc *sc = container_of(work, struct ath_softc, paprd_work);
+ struct ieee80211_hw *hw = sc->hw;
+ struct ath_hw *ah = sc->sc_ah;
+ struct ieee80211_hdr *hdr;
+ struct sk_buff *skb = NULL;
+ struct ieee80211_tx_info *tx_info;
+ int band = hw->conf.channel->band;
+ struct ieee80211_supported_band *sband = &sc->sbands[band];
+ struct ath_tx_control txctl;
+ int qnum, ftype;
+ int chain_ok = 0;
+ int chain;
+ int len = 1800;
+ int time_left;
+ int i;
+
+ ath9k_ps_wakeup(sc);
+ skb = alloc_skb(len, GFP_KERNEL);
+ if (!skb)
+ return;
+
+ tx_info = IEEE80211_SKB_CB(skb);
+
+ skb_put(skb, len);
+ memset(skb->data, 0, len);
+ hdr = (struct ieee80211_hdr *)skb->data;
+ ftype = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC;
+ hdr->frame_control = cpu_to_le16(ftype);
+ hdr->duration_id = 10;
+ memcpy(hdr->addr1, hw->wiphy->perm_addr, ETH_ALEN);
+ memcpy(hdr->addr2, hw->wiphy->perm_addr, ETH_ALEN);
+ memcpy(hdr->addr3, hw->wiphy->perm_addr, ETH_ALEN);
+
+ memset(&txctl, 0, sizeof(txctl));
+ qnum = sc->tx.hwq_map[WME_AC_BE];
+ txctl.txq = &sc->tx.txq[qnum];
+
+ ar9003_paprd_init_table(ah);
+ for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) {
+ if (!(ah->caps.tx_chainmask & BIT(chain)))
+ continue;
+
+ chain_ok = 0;
+ memset(tx_info, 0, sizeof(*tx_info));
+ tx_info->band = band;
+
+ for (i = 0; i < 4; i++) {
+ tx_info->control.rates[i].idx = sband->n_bitrates - 1;
+ tx_info->control.rates[i].count = 6;
+ }
+
+ init_completion(&sc->paprd_complete);
+ ar9003_paprd_setup_gain_table(ah, chain);
+ txctl.paprd = BIT(chain);
+ if (ath_tx_start(hw, skb, &txctl) != 0)
+ break;
+
+ time_left = wait_for_completion_timeout(&sc->paprd_complete,
+ 100);
+ if (!time_left) {
+ ath_print(ath9k_hw_common(ah), ATH_DBG_CALIBRATE,
+ "Timeout waiting for paprd training on "
+ "TX chain %d\n",
+ chain);
+ break;
+ }
+
+ if (!ar9003_paprd_is_done(ah))
+ break;
+
+ if (ar9003_paprd_create_curve(ah, ah->curchan, chain) != 0)
+ break;
+
+ chain_ok = 1;
+ }
+ kfree_skb(skb);
+
+ if (chain_ok) {
+ ah->curchan->paprd_done = true;
+ ath_paprd_activate(sc);
+ }
+
+ ath9k_ps_restore(sc);
+}
+
/*
* This routine performs the periodic noise floor calibration function
* that is used to adjust and optimize the chip performance. This
@@ -285,7 +390,8 @@ void ath_ani_calibrate(unsigned long data)
}
/* Verify whether we must check ANI */
- if ((timestamp - common->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) {
+ if ((timestamp - common->ani.checkani_timer) >=
+ ah->config.ani_poll_interval) {
aniflag = true;
common->ani.checkani_timer = timestamp;
}
@@ -326,15 +432,24 @@ set_timer:
*/
cal_interval = ATH_LONG_CALINTERVAL;
if (sc->sc_ah->config.enable_ani)
- cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL);
+ cal_interval = min(cal_interval,
+ (u32)ah->config.ani_poll_interval);
if (!common->ani.caldone)
cal_interval = min(cal_interval, (u32)short_cal_interval);
mod_timer(&common->ani.timer, jiffies + msecs_to_jiffies(cal_interval));
+ if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_PAPRD) &&
+ !(sc->sc_flags & SC_OP_SCANNING)) {
+ if (!sc->sc_ah->curchan->paprd_done)
+ ieee80211_queue_work(sc->hw, &sc->paprd_work);
+ else
+ ath_paprd_activate(sc);
+ }
}
static void ath_start_ani(struct ath_common *common)
{
+ struct ath_hw *ah = common->ah;
unsigned long timestamp = jiffies_to_msecs(jiffies);
common->ani.longcal_timer = timestamp;
@@ -342,7 +457,8 @@ static void ath_start_ani(struct ath_common *common)
common->ani.checkani_timer = timestamp;
mod_timer(&common->ani.timer,
- jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL));
+ jiffies +
+ msecs_to_jiffies((u32)ah->config.ani_poll_interval));
}
/*
@@ -520,6 +636,12 @@ irqreturn_t ath_isr(int irq, void *dev)
!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)))
goto chip_reset;
+ if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
+ (status & ATH9K_INT_BB_WATCHDOG)) {
+ ar9003_hw_bb_watchdog_dbg_info(ah);
+ goto chip_reset;
+ }
+
if (status & ATH9K_INT_SWBA)
tasklet_schedule(&sc->bcon_tasklet);
@@ -615,234 +737,6 @@ static u32 ath_get_extchanmode(struct ath_softc *sc,
return chanmode;
}
-static int ath_setkey_tkip(struct ath_common *common, u16 keyix, const u8 *key,
- struct ath9k_keyval *hk, const u8 *addr,
- bool authenticator)
-{
- struct ath_hw *ah = common->ah;
- const u8 *key_rxmic;
- const u8 *key_txmic;
-
- key_txmic = key + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY;
- key_rxmic = key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY;
-
- if (addr == NULL) {
- /*
- * Group key installation - only two key cache entries are used
- * regardless of splitmic capability since group key is only
- * used either for TX or RX.
- */
- if (authenticator) {
- memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic));
- memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_mic));
- } else {
- memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic));
- memcpy(hk->kv_txmic, key_rxmic, sizeof(hk->kv_mic));
- }
- return ath9k_hw_set_keycache_entry(ah, keyix, hk, addr);
- }
- if (!common->splitmic) {
- /* TX and RX keys share the same key cache entry. */
- memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic));
- memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_txmic));
- return ath9k_hw_set_keycache_entry(ah, keyix, hk, addr);
- }
-
- /* Separate key cache entries for TX and RX */
-
- /* TX key goes at first index, RX key at +32. */
- memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic));
- if (!ath9k_hw_set_keycache_entry(ah, keyix, hk, NULL)) {
- /* TX MIC entry failed. No need to proceed further */
- ath_print(common, ATH_DBG_FATAL,
- "Setting TX MIC Key Failed\n");
- return 0;
- }
-
- memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic));
- /* XXX delete tx key on failure? */
- return ath9k_hw_set_keycache_entry(ah, keyix + 32, hk, addr);
-}
-
-static int ath_reserve_key_cache_slot_tkip(struct ath_common *common)
-{
- int i;
-
- for (i = IEEE80211_WEP_NKID; i < common->keymax / 2; i++) {
- if (test_bit(i, common->keymap) ||
- test_bit(i + 64, common->keymap))
- continue; /* At least one part of TKIP key allocated */
- if (common->splitmic &&
- (test_bit(i + 32, common->keymap) ||
- test_bit(i + 64 + 32, common->keymap)))
- continue; /* At least one part of TKIP key allocated */
-
- /* Found a free slot for a TKIP key */
- return i;
- }
- return -1;
-}
-
-static int ath_reserve_key_cache_slot(struct ath_common *common)
-{
- int i;
-
- /* First, try to find slots that would not be available for TKIP. */
- if (common->splitmic) {
- for (i = IEEE80211_WEP_NKID; i < common->keymax / 4; i++) {
- if (!test_bit(i, common->keymap) &&
- (test_bit(i + 32, common->keymap) ||
- test_bit(i + 64, common->keymap) ||
- test_bit(i + 64 + 32, common->keymap)))
- return i;
- if (!test_bit(i + 32, common->keymap) &&
- (test_bit(i, common->keymap) ||
- test_bit(i + 64, common->keymap) ||
- test_bit(i + 64 + 32, common->keymap)))
- return i + 32;
- if (!test_bit(i + 64, common->keymap) &&
- (test_bit(i , common->keymap) ||
- test_bit(i + 32, common->keymap) ||
- test_bit(i + 64 + 32, common->keymap)))
- return i + 64;
- if (!test_bit(i + 64 + 32, common->keymap) &&
- (test_bit(i, common->keymap) ||
- test_bit(i + 32, common->keymap) ||
- test_bit(i + 64, common->keymap)))
- return i + 64 + 32;
- }
- } else {
- for (i = IEEE80211_WEP_NKID; i < common->keymax / 2; i++) {
- if (!test_bit(i, common->keymap) &&
- test_bit(i + 64, common->keymap))
- return i;
- if (test_bit(i, common->keymap) &&
- !test_bit(i + 64, common->keymap))
- return i + 64;
- }
- }
-
- /* No partially used TKIP slots, pick any available slot */
- for (i = IEEE80211_WEP_NKID; i < common->keymax; i++) {
- /* Do not allow slots that could be needed for TKIP group keys
- * to be used. This limitation could be removed if we know that
- * TKIP will not be used. */
- if (i >= 64 && i < 64 + IEEE80211_WEP_NKID)
- continue;
- if (common->splitmic) {
- if (i >= 32 && i < 32 + IEEE80211_WEP_NKID)
- continue;
- if (i >= 64 + 32 && i < 64 + 32 + IEEE80211_WEP_NKID)
- continue;
- }
-
- if (!test_bit(i, common->keymap))
- return i; /* Found a free slot for a key */
- }
-
- /* No free slot found */
- return -1;
-}
-
-static int ath_key_config(struct ath_common *common,
- struct ieee80211_vif *vif,
- struct ieee80211_sta *sta,
- struct ieee80211_key_conf *key)
-{
- struct ath_hw *ah = common->ah;
- struct ath9k_keyval hk;
- const u8 *mac = NULL;
- int ret = 0;
- int idx;
-
- memset(&hk, 0, sizeof(hk));
-
- switch (key->alg) {
- case ALG_WEP:
- hk.kv_type = ATH9K_CIPHER_WEP;
- break;
- case ALG_TKIP:
- hk.kv_type = ATH9K_CIPHER_TKIP;
- break;
- case ALG_CCMP:
- hk.kv_type = ATH9K_CIPHER_AES_CCM;
- break;
- default:
- return -EOPNOTSUPP;
- }
-
- hk.kv_len = key->keylen;
- memcpy(hk.kv_val, key->key, key->keylen);
-
- if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
- /* For now, use the default keys for broadcast keys. This may
- * need to change with virtual interfaces. */
- idx = key->keyidx;
- } else if (key->keyidx) {
- if (WARN_ON(!sta))
- return -EOPNOTSUPP;
- mac = sta->addr;
-
- if (vif->type != NL80211_IFTYPE_AP) {
- /* Only keyidx 0 should be used with unicast key, but
- * allow this for client mode for now. */
- idx = key->keyidx;
- } else
- return -EIO;
- } else {
- if (WARN_ON(!sta))
- return -EOPNOTSUPP;
- mac = sta->addr;
-
- if (key->alg == ALG_TKIP)
- idx = ath_reserve_key_cache_slot_tkip(common);
- else
- idx = ath_reserve_key_cache_slot(common);
- if (idx < 0)
- return -ENOSPC; /* no free key cache entries */
- }
-
- if (key->alg == ALG_TKIP)
- ret = ath_setkey_tkip(common, idx, key->key, &hk, mac,
- vif->type == NL80211_IFTYPE_AP);
- else
- ret = ath9k_hw_set_keycache_entry(ah, idx, &hk, mac);
-
- if (!ret)
- return -EIO;
-
- set_bit(idx, common->keymap);
- if (key->alg == ALG_TKIP) {
- set_bit(idx + 64, common->keymap);
- if (common->splitmic) {
- set_bit(idx + 32, common->keymap);
- set_bit(idx + 64 + 32, common->keymap);
- }
- }
-
- return idx;
-}
-
-static void ath_key_delete(struct ath_common *common, struct ieee80211_key_conf *key)
-{
- struct ath_hw *ah = common->ah;
-
- ath9k_hw_keyreset(ah, key->hw_key_idx);
- if (key->hw_key_idx < IEEE80211_WEP_NKID)
- return;
-
- clear_bit(key->hw_key_idx, common->keymap);
- if (key->alg != ALG_TKIP)
- return;
-
- clear_bit(key->hw_key_idx + 64, common->keymap);
- if (common->splitmic) {
- ath9k_hw_keyreset(ah, key->hw_key_idx + 32);
- clear_bit(key->hw_key_idx + 32, common->keymap);
- clear_bit(key->hw_key_idx + 64 + 32, common->keymap);
- }
-}
-
static void ath9k_bss_assoc_info(struct ath_softc *sc,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf)
@@ -1026,25 +920,25 @@ int ath_reset(struct ath_softc *sc, bool retry_tx)
return r;
}
-int ath_get_hal_qnum(u16 queue, struct ath_softc *sc)
+static int ath_get_hal_qnum(u16 queue, struct ath_softc *sc)
{
int qnum;
switch (queue) {
case 0:
- qnum = sc->tx.hwq_map[ATH9K_WME_AC_VO];
+ qnum = sc->tx.hwq_map[WME_AC_VO];
break;
case 1:
- qnum = sc->tx.hwq_map[ATH9K_WME_AC_VI];
+ qnum = sc->tx.hwq_map[WME_AC_VI];
break;
case 2:
- qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE];
+ qnum = sc->tx.hwq_map[WME_AC_BE];
break;
case 3:
- qnum = sc->tx.hwq_map[ATH9K_WME_AC_BK];
+ qnum = sc->tx.hwq_map[WME_AC_BK];
break;
default:
- qnum = sc->tx.hwq_map[ATH9K_WME_AC_BE];
+ qnum = sc->tx.hwq_map[WME_AC_BE];
break;
}
@@ -1056,16 +950,16 @@ int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc)
int qnum;
switch (queue) {
- case ATH9K_WME_AC_VO:
+ case WME_AC_VO:
qnum = 0;
break;
- case ATH9K_WME_AC_VI:
+ case WME_AC_VI:
qnum = 1;
break;
- case ATH9K_WME_AC_BE:
+ case WME_AC_BE:
qnum = 2;
break;
- case ATH9K_WME_AC_BK:
+ case WME_AC_BK:
qnum = 3;
break;
default:
@@ -1195,7 +1089,9 @@ static int ath9k_start(struct ieee80211_hw *hw)
ATH9K_INT_GLOBAL;
if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
- ah->imask |= ATH9K_INT_RXHP | ATH9K_INT_RXLP;
+ ah->imask |= ATH9K_INT_RXHP |
+ ATH9K_INT_RXLP |
+ ATH9K_INT_BB_WATCHDOG;
else
ah->imask |= ATH9K_INT_RX;
@@ -1245,6 +1141,7 @@ static int ath9k_tx(struct ieee80211_hw *hw,
struct ath_tx_control txctl;
int padpos, padsize;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ int qnum;
if (aphy->state != ATH_WIPHY_ACTIVE && aphy->state != ATH_WIPHY_SCAN) {
ath_print(common, ATH_DBG_XMIT,
@@ -1274,7 +1171,8 @@ static int ath9k_tx(struct ieee80211_hw *hw,
* completed and if needed, also for RX of buffered frames.
*/
ath9k_ps_wakeup(sc);
- ath9k_hw_setrxabort(sc->sc_ah, 0);
+ if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
+ ath9k_hw_setrxabort(sc->sc_ah, 0);
if (ieee80211_is_pspoll(hdr->frame_control)) {
ath_print(common, ATH_DBG_PS,
"Sending PS-Poll to pick a buffered frame\n");
@@ -1316,11 +1214,8 @@ static int ath9k_tx(struct ieee80211_hw *hw,
memmove(skb->data, skb->data + padsize, padpos);
}
- /* Check if a tx queue is available */
-
- txctl.txq = ath_test_get_txq(sc, skb);
- if (!txctl.txq)
- goto exit;
+ qnum = ath_get_hal_qnum(skb_get_queue_mapping(skb), sc);
+ txctl.txq = &sc->tx.txq[qnum];
ath_print(common, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb);
@@ -1348,6 +1243,7 @@ static void ath9k_stop(struct ieee80211_hw *hw)
cancel_delayed_work_sync(&sc->ath_led_blink_work);
cancel_delayed_work_sync(&sc->tx_complete_work);
+ cancel_work_sync(&sc->paprd_work);
if (!sc->num_sec_wiphy) {
cancel_delayed_work_sync(&sc->wiphy_work);
@@ -1538,8 +1434,8 @@ void ath9k_enable_ps(struct ath_softc *sc)
ah->imask |= ATH9K_INT_TIM_TIMER;
ath9k_hw_set_interrupts(ah, ah->imask);
}
+ ath9k_hw_setrxabort(ah, 1);
}
- ath9k_hw_setrxabort(ah, 1);
}
static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
@@ -1776,7 +1672,7 @@ static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue,
ath_print(common, ATH_DBG_FATAL, "TXQ Update failed\n");
if (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC)
- if ((qnum == sc->tx.hwq_map[ATH9K_WME_AC_BE]) && !ret)
+ if ((qnum == sc->tx.hwq_map[WME_AC_BE]) && !ret)
ath_beaconq_config(sc);
mutex_unlock(&sc->mutex);
@@ -1804,7 +1700,7 @@ static int ath9k_set_key(struct ieee80211_hw *hw,
switch (cmd) {
case SET_KEY:
- ret = ath_key_config(common, vif, sta, key);
+ ret = ath9k_cmn_key_config(common, vif, sta, key);
if (ret >= 0) {
key->hw_key_idx = ret;
/* push IV and Michael MIC generation to stack */
@@ -1817,7 +1713,7 @@ static int ath9k_set_key(struct ieee80211_hw *hw,
}
break;
case DISABLE_KEY:
- ath_key_delete(common, key);
+ ath9k_cmn_key_delete(common, key);
break;
default:
ret = -EINVAL;
@@ -1990,6 +1886,8 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw,
struct ath_softc *sc = aphy->sc;
int ret = 0;
+ local_bh_disable();
+
switch (action) {
case IEEE80211_AMPDU_RX_START:
if (!(sc->sc_flags & SC_OP_RXAGGR))
@@ -2019,6 +1917,8 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw,
"Unknown AMPDU action\n");
}
+ local_bh_enable();
+
return ret;
}
@@ -2063,6 +1963,7 @@ static void ath9k_sw_scan_start(struct ieee80211_hw *hw)
ath9k_wiphy_pause_all_forced(sc, aphy);
sc->sc_flags |= SC_OP_SCANNING;
del_timer_sync(&common->ani.timer);
+ cancel_work_sync(&sc->paprd_work);
cancel_delayed_work_sync(&sc->tx_complete_work);
mutex_unlock(&sc->mutex);
}