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path: root/drivers/net/wireless/ath/ar9170/main.c
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Diffstat (limited to 'drivers/net/wireless/ath/ar9170/main.c')
-rw-r--r--drivers/net/wireless/ath/ar9170/main.c768
1 files changed, 645 insertions, 123 deletions
diff --git a/drivers/net/wireless/ath/ar9170/main.c b/drivers/net/wireless/ath/ar9170/main.c
index 88c3d8573869..c1f8c69db165 100644
--- a/drivers/net/wireless/ath/ar9170/main.c
+++ b/drivers/net/wireless/ath/ar9170/main.c
@@ -49,6 +49,10 @@ static int modparam_nohwcrypt;
module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
+static int modparam_ht;
+module_param_named(ht, modparam_ht, bool, S_IRUGO);
+MODULE_PARM_DESC(ht, "enable MPDU aggregation.");
+
#define RATE(_bitrate, _hw_rate, _txpidx, _flags) { \
.bitrate = (_bitrate), \
.flags = (_flags), \
@@ -148,12 +152,15 @@ static struct ieee80211_channel ar9170_5ghz_chantable[] = {
.cap = IEEE80211_HT_CAP_MAX_AMSDU | \
IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \
IEEE80211_HT_CAP_SGI_40 | \
+ IEEE80211_HT_CAP_GRN_FLD | \
IEEE80211_HT_CAP_DSSSCCK40 | \
IEEE80211_HT_CAP_SM_PS, \
.ampdu_factor = 3, \
.ampdu_density = 6, \
.mcs = { \
- .rx_mask = { 0xFF, 0xFF, 0, 0, 0, 0, 0, 0, 0, 0, }, \
+ .rx_mask = { 0xff, 0xff, 0, 0, 0x1, 0, 0, 0, 0, 0, }, \
+ .rx_highest = cpu_to_le16(300), \
+ .tx_params = IEEE80211_HT_MCS_TX_DEFINED, \
}, \
}
@@ -174,8 +181,31 @@ static struct ieee80211_supported_band ar9170_band_5GHz = {
};
static void ar9170_tx(struct ar9170 *ar);
+static bool ar9170_tx_ampdu(struct ar9170 *ar);
-#ifdef AR9170_QUEUE_DEBUG
+static inline u16 ar9170_get_seq_h(struct ieee80211_hdr *hdr)
+{
+ return le16_to_cpu(hdr->seq_ctrl) >> 4;
+}
+
+static inline u16 ar9170_get_seq(struct sk_buff *skb)
+{
+ struct ar9170_tx_control *txc = (void *) skb->data;
+ return ar9170_get_seq_h((void *) txc->frame_data);
+}
+
+static inline u16 ar9170_get_tid(struct sk_buff *skb)
+{
+ struct ar9170_tx_control *txc = (void *) skb->data;
+ struct ieee80211_hdr *hdr = (void *) txc->frame_data;
+
+ return (ieee80211_get_qos_ctl(hdr))[0] & IEEE80211_QOS_CTL_TID_MASK;
+}
+
+#define GET_NEXT_SEQ(seq) ((seq + 1) & 0x0fff)
+#define GET_NEXT_SEQ_FROM_SKB(skb) (GET_NEXT_SEQ(ar9170_get_seq(skb)))
+
+#if (defined AR9170_QUEUE_DEBUG) || (defined AR9170_TXAGG_DEBUG)
static void ar9170_print_txheader(struct ar9170 *ar, struct sk_buff *skb)
{
struct ar9170_tx_control *txc = (void *) skb->data;
@@ -183,10 +213,10 @@ static void ar9170_print_txheader(struct ar9170 *ar, struct sk_buff *skb)
struct ar9170_tx_info *arinfo = (void *) txinfo->rate_driver_data;
struct ieee80211_hdr *hdr = (void *) txc->frame_data;
- printk(KERN_DEBUG "%s: => FRAME [skb:%p, q:%d, DA:[%pM] flags:%x "
+ printk(KERN_DEBUG "%s: => FRAME [skb:%p, q:%d, DA:[%pM] flags:%x s:%d "
"mac_ctrl:%04x, phy_ctrl:%08x, timeout:[%d ms]]\n",
wiphy_name(ar->hw->wiphy), skb, skb_get_queue_mapping(skb),
- ieee80211_get_DA(hdr), arinfo->flags,
+ ieee80211_get_DA(hdr), arinfo->flags, ar9170_get_seq_h(hdr),
le16_to_cpu(txc->mac_control), le32_to_cpu(txc->phy_control),
jiffies_to_msecs(arinfo->timeout - jiffies));
}
@@ -210,7 +240,9 @@ static void __ar9170_dump_txqueue(struct ar9170 *ar,
"mismatch %d != %d\n", skb_queue_len(queue), i);
printk(KERN_DEBUG "---[ end ]---\n");
}
+#endif /* AR9170_QUEUE_DEBUG || AR9170_TXAGG_DEBUG */
+#ifdef AR9170_QUEUE_DEBUG
static void ar9170_dump_txqueue(struct ar9170 *ar,
struct sk_buff_head *queue)
{
@@ -220,7 +252,9 @@ static void ar9170_dump_txqueue(struct ar9170 *ar,
__ar9170_dump_txqueue(ar, queue);
spin_unlock_irqrestore(&queue->lock, flags);
}
+#endif /* AR9170_QUEUE_DEBUG */
+#ifdef AR9170_QUEUE_STOP_DEBUG
static void __ar9170_dump_txstats(struct ar9170 *ar)
{
int i;
@@ -229,20 +263,27 @@ static void __ar9170_dump_txstats(struct ar9170 *ar)
wiphy_name(ar->hw->wiphy));
for (i = 0; i < __AR9170_NUM_TXQ; i++)
- printk(KERN_DEBUG "%s: queue:%d limit:%d len:%d waitack:%d\n",
- wiphy_name(ar->hw->wiphy), i, ar->tx_stats[i].limit,
- ar->tx_stats[i].len, skb_queue_len(&ar->tx_status[i]));
+ printk(KERN_DEBUG "%s: queue:%d limit:%d len:%d waitack:%d "
+ " stopped:%d\n", wiphy_name(ar->hw->wiphy), i,
+ ar->tx_stats[i].limit, ar->tx_stats[i].len,
+ skb_queue_len(&ar->tx_status[i]),
+ ieee80211_queue_stopped(ar->hw, i));
}
+#endif /* AR9170_QUEUE_STOP_DEBUG */
-static void ar9170_dump_txstats(struct ar9170 *ar)
+#ifdef AR9170_TXAGG_DEBUG
+static void ar9170_dump_tx_status_ampdu(struct ar9170 *ar)
{
unsigned long flags;
- spin_lock_irqsave(&ar->tx_stats_lock, flags);
- __ar9170_dump_txstats(ar);
- spin_unlock_irqrestore(&ar->tx_stats_lock, flags);
+ spin_lock_irqsave(&ar->tx_status_ampdu.lock, flags);
+ printk(KERN_DEBUG "%s: A-MPDU tx_status queue => \n",
+ wiphy_name(ar->hw->wiphy));
+ __ar9170_dump_txqueue(ar, &ar->tx_status_ampdu);
+ spin_unlock_irqrestore(&ar->tx_status_ampdu.lock, flags);
}
-#endif /* AR9170_QUEUE_DEBUG */
+
+#endif /* AR9170_TXAGG_DEBUG */
/* caller must guarantee exclusive access for _bin_ queue. */
static void ar9170_recycle_expired(struct ar9170 *ar,
@@ -315,6 +356,70 @@ static void ar9170_tx_status(struct ar9170 *ar, struct sk_buff *skb,
ieee80211_tx_status_irqsafe(ar->hw, skb);
}
+static void ar9170_tx_fake_ampdu_status(struct ar9170 *ar)
+{
+ struct sk_buff_head success;
+ struct sk_buff *skb;
+ unsigned int i;
+ unsigned long queue_bitmap = 0;
+
+ skb_queue_head_init(&success);
+
+ while (skb_queue_len(&ar->tx_status_ampdu) > AR9170_NUM_TX_STATUS)
+ __skb_queue_tail(&success, skb_dequeue(&ar->tx_status_ampdu));
+
+ ar9170_recycle_expired(ar, &ar->tx_status_ampdu, &success);
+
+#ifdef AR9170_TXAGG_DEBUG
+ printk(KERN_DEBUG "%s: collected %d A-MPDU frames.\n",
+ wiphy_name(ar->hw->wiphy), skb_queue_len(&success));
+ __ar9170_dump_txqueue(ar, &success);
+#endif /* AR9170_TXAGG_DEBUG */
+
+ while ((skb = __skb_dequeue(&success))) {
+ struct ieee80211_tx_info *txinfo;
+
+ queue_bitmap |= BIT(skb_get_queue_mapping(skb));
+
+ txinfo = IEEE80211_SKB_CB(skb);
+ ieee80211_tx_info_clear_status(txinfo);
+
+ txinfo->flags |= IEEE80211_TX_STAT_ACK;
+ txinfo->status.rates[0].count = 1;
+
+ skb_pull(skb, sizeof(struct ar9170_tx_control));
+ ieee80211_tx_status_irqsafe(ar->hw, skb);
+ }
+
+ for_each_bit(i, &queue_bitmap, BITS_PER_BYTE) {
+#ifdef AR9170_QUEUE_STOP_DEBUG
+ printk(KERN_DEBUG "%s: wake queue %d\n",
+ wiphy_name(ar->hw->wiphy), i);
+ __ar9170_dump_txstats(ar);
+#endif /* AR9170_QUEUE_STOP_DEBUG */
+ ieee80211_wake_queue(ar->hw, i);
+ }
+
+ if (queue_bitmap)
+ ar9170_tx(ar);
+}
+
+static void ar9170_tx_ampdu_callback(struct ar9170 *ar, struct sk_buff *skb)
+{
+ struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
+ struct ar9170_tx_info *arinfo = (void *) txinfo->rate_driver_data;
+
+ arinfo->timeout = jiffies +
+ msecs_to_jiffies(AR9170_BA_TIMEOUT);
+
+ skb_queue_tail(&ar->tx_status_ampdu, skb);
+ ar9170_tx_fake_ampdu_status(ar);
+ ar->tx_ampdu_pending--;
+
+ if (!list_empty(&ar->tx_ampdu_list) && !ar->tx_ampdu_pending)
+ ar9170_tx_ampdu(ar);
+}
+
void ar9170_tx_callback(struct ar9170 *ar, struct sk_buff *skb)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
@@ -336,7 +441,7 @@ void ar9170_tx_callback(struct ar9170 *ar, struct sk_buff *skb)
spin_unlock_irqrestore(&ar->tx_stats_lock, flags);
if (arinfo->flags & AR9170_TX_FLAG_BLOCK_ACK) {
- dev_kfree_skb_any(skb);
+ ar9170_tx_ampdu_callback(ar, skb);
} else if (arinfo->flags & AR9170_TX_FLAG_WAIT_FOR_ACK) {
arinfo->timeout = jiffies +
msecs_to_jiffies(AR9170_TX_TIMEOUT);
@@ -420,6 +525,38 @@ static struct sk_buff *ar9170_get_queued_skb(struct ar9170 *ar,
return NULL;
}
+static void ar9170_handle_block_ack(struct ar9170 *ar, u16 count, u16 r)
+{
+ struct sk_buff *skb;
+ struct ieee80211_tx_info *txinfo;
+
+ while (count) {
+ skb = ar9170_get_queued_skb(ar, NULL, &ar->tx_status_ampdu, r);
+ if (!skb)
+ break;
+
+ txinfo = IEEE80211_SKB_CB(skb);
+ ieee80211_tx_info_clear_status(txinfo);
+
+ /* FIXME: maybe more ? */
+ txinfo->status.rates[0].count = 1;
+
+ skb_pull(skb, sizeof(struct ar9170_tx_control));
+ ieee80211_tx_status_irqsafe(ar->hw, skb);
+ count--;
+ }
+
+#ifdef AR9170_TXAGG_DEBUG
+ if (count) {
+ printk(KERN_DEBUG "%s: got %d more failed mpdus, but no more "
+ "suitable frames left in tx_status queue.\n",
+ wiphy_name(ar->hw->wiphy), count);
+
+ ar9170_dump_tx_status_ampdu(ar);
+ }
+#endif /* AR9170_TXAGG_DEBUG */
+}
+
/*
* This worker tries to keeps an maintain tx_status queues.
* So we can guarantee that incoming tx_status reports are
@@ -456,10 +593,14 @@ static void ar9170_tx_janitor(struct work_struct *work)
resched = true;
}
- if (resched)
- queue_delayed_work(ar->hw->workqueue,
- &ar->tx_janitor,
- msecs_to_jiffies(AR9170_JANITOR_DELAY));
+ ar9170_tx_fake_ampdu_status(ar);
+
+ if (!resched)
+ return;
+
+ ieee80211_queue_delayed_work(ar->hw,
+ &ar->tx_janitor,
+ msecs_to_jiffies(AR9170_JANITOR_DELAY));
}
void ar9170_handle_command_response(struct ar9170 *ar, void *buf, u32 len)
@@ -509,7 +650,7 @@ void ar9170_handle_command_response(struct ar9170 *ar, void *buf, u32 len)
* pre-TBTT event
*/
if (ar->vif && ar->vif->type == NL80211_IFTYPE_AP)
- queue_work(ar->hw->workqueue, &ar->beacon_work);
+ ieee80211_queue_work(ar->hw, &ar->beacon_work);
break;
case 0xc2:
@@ -528,8 +669,15 @@ void ar9170_handle_command_response(struct ar9170 *ar, void *buf, u32 len)
break;
case 0xc4:
+ /* BlockACK bitmap */
+ break;
+
case 0xc5:
/* BlockACK events */
+ ar9170_handle_block_ack(ar,
+ le16_to_cpu(cmd->ba_fail_cnt.failed),
+ le16_to_cpu(cmd->ba_fail_cnt.rate));
+ ar9170_tx_fake_ampdu_status(ar);
break;
case 0xc6:
@@ -917,8 +1065,10 @@ static void ar9170_handle_mpdu(struct ar9170 *ar, u8 *buf, int len)
ar9170_rx_phy_status(ar, phy, &status);
skb = ar9170_rx_copy_data(buf, mpdu_len);
- if (likely(skb))
- ieee80211_rx_irqsafe(ar->hw, skb, &status);
+ if (likely(skb)) {
+ memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
+ ieee80211_rx_irqsafe(ar->hw, skb);
+ }
}
void ar9170_rx(struct ar9170 *ar, struct sk_buff *skb)
@@ -1082,8 +1232,6 @@ static int ar9170_op_start(struct ieee80211_hw *hw)
mutex_lock(&ar->mutex);
- ar->filter_changed = 0;
-
/* reinitialize queues statistics */
memset(&ar->tx_stats, 0, sizeof(ar->tx_stats));
for (i = 0; i < __AR9170_NUM_TXQ; i++)
@@ -1096,6 +1244,10 @@ static int ar9170_op_start(struct ieee80211_hw *hw)
AR9170_FILL_QUEUE(ar->edcf[3], 2, 3, 7, 47); /* VOICE */
AR9170_FILL_QUEUE(ar->edcf[4], 2, 3, 7, 0); /* SPECIAL */
+ /* set sane AMPDU defaults */
+ ar->global_ampdu_density = 6;
+ ar->global_ampdu_factor = 3;
+
ar->bad_hw_nagger = jiffies;
err = ar->open(ar);
@@ -1138,11 +1290,12 @@ static void ar9170_op_stop(struct ieee80211_hw *hw)
if (IS_STARTED(ar))
ar->state = AR9170_IDLE;
- flush_workqueue(ar->hw->workqueue);
-
cancel_delayed_work_sync(&ar->tx_janitor);
- cancel_work_sync(&ar->filter_config_work);
+#ifdef CONFIG_AR9170_LEDS
+ cancel_delayed_work_sync(&ar->led_work);
+#endif
cancel_work_sync(&ar->beacon_work);
+
mutex_lock(&ar->mutex);
if (IS_ACCEPTING_CMD(ar)) {
@@ -1157,9 +1310,40 @@ static void ar9170_op_stop(struct ieee80211_hw *hw)
skb_queue_purge(&ar->tx_pending[i]);
skb_queue_purge(&ar->tx_status[i]);
}
+ skb_queue_purge(&ar->tx_status_ampdu);
+
mutex_unlock(&ar->mutex);
}
+static void ar9170_tx_indicate_immba(struct ar9170 *ar, struct sk_buff *skb)
+{
+ struct ar9170_tx_control *txc = (void *) skb->data;
+
+ txc->mac_control |= cpu_to_le16(AR9170_TX_MAC_IMM_AMPDU);
+}
+
+static void ar9170_tx_copy_phy(struct ar9170 *ar, struct sk_buff *dst,
+ struct sk_buff *src)
+{
+ struct ar9170_tx_control *dst_txc, *src_txc;
+ struct ieee80211_tx_info *dst_info, *src_info;
+ struct ar9170_tx_info *dst_arinfo, *src_arinfo;
+
+ src_txc = (void *) src->data;
+ src_info = IEEE80211_SKB_CB(src);
+ src_arinfo = (void *) src_info->rate_driver_data;
+
+ dst_txc = (void *) dst->data;
+ dst_info = IEEE80211_SKB_CB(dst);
+ dst_arinfo = (void *) dst_info->rate_driver_data;
+
+ dst_txc->phy_control = src_txc->phy_control;
+
+ /* same MCS for the whole aggregate */
+ memcpy(dst_info->driver_rates, src_info->driver_rates,
+ sizeof(dst_info->driver_rates));
+}
+
static int ar9170_tx_prepare(struct ar9170 *ar, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr;
@@ -1228,6 +1412,7 @@ static int ar9170_tx_prepare(struct ar9170 *ar, struct sk_buff *skb)
txc->mac_control |= cpu_to_le16(AR9170_TX_MAC_AGGR);
arinfo->flags = AR9170_TX_FLAG_BLOCK_ACK;
+
goto out;
}
@@ -1358,6 +1543,159 @@ static void ar9170_tx_prepare_phy(struct ar9170 *ar, struct sk_buff *skb)
txc->phy_control |= cpu_to_le32(chains << AR9170_TX_PHY_TXCHAIN_SHIFT);
}
+static bool ar9170_tx_ampdu(struct ar9170 *ar)
+{
+ struct sk_buff_head agg;
+ struct ar9170_sta_tid *tid_info = NULL, *tmp;
+ struct sk_buff *skb, *first = NULL;
+ unsigned long flags, f2;
+ unsigned int i = 0;
+ u16 seq, queue, tmpssn;
+ bool run = false;
+
+ skb_queue_head_init(&agg);
+
+ spin_lock_irqsave(&ar->tx_ampdu_list_lock, flags);
+ if (list_empty(&ar->tx_ampdu_list)) {
+#ifdef AR9170_TXAGG_DEBUG
+ printk(KERN_DEBUG "%s: aggregation list is empty.\n",
+ wiphy_name(ar->hw->wiphy));
+#endif /* AR9170_TXAGG_DEBUG */
+ goto out_unlock;
+ }
+
+ list_for_each_entry_safe(tid_info, tmp, &ar->tx_ampdu_list, list) {
+ if (tid_info->state != AR9170_TID_STATE_COMPLETE) {
+#ifdef AR9170_TXAGG_DEBUG
+ printk(KERN_DEBUG "%s: dangling aggregation entry!\n",
+ wiphy_name(ar->hw->wiphy));
+#endif /* AR9170_TXAGG_DEBUG */
+ continue;
+ }
+
+ if (++i > 64) {
+#ifdef AR9170_TXAGG_DEBUG
+ printk(KERN_DEBUG "%s: enough frames aggregated.\n",
+ wiphy_name(ar->hw->wiphy));
+#endif /* AR9170_TXAGG_DEBUG */
+ break;
+ }
+
+ queue = TID_TO_WME_AC(tid_info->tid);
+
+ if (skb_queue_len(&ar->tx_pending[queue]) >=
+ AR9170_NUM_TX_AGG_MAX) {
+#ifdef AR9170_TXAGG_DEBUG
+ printk(KERN_DEBUG "%s: queue %d full.\n",
+ wiphy_name(ar->hw->wiphy), queue);
+#endif /* AR9170_TXAGG_DEBUG */
+ continue;
+ }
+
+ list_del_init(&tid_info->list);
+
+ spin_lock_irqsave(&tid_info->queue.lock, f2);
+ tmpssn = seq = tid_info->ssn;
+ first = skb_peek(&tid_info->queue);
+
+ if (likely(first))
+ tmpssn = ar9170_get_seq(first);
+
+ if (unlikely(tmpssn != seq)) {
+#ifdef AR9170_TXAGG_DEBUG
+ printk(KERN_DEBUG "%s: ssn mismatch [%d != %d]\n.",
+ wiphy_name(ar->hw->wiphy), seq, tmpssn);
+#endif /* AR9170_TXAGG_DEBUG */
+ tid_info->ssn = tmpssn;
+ }
+
+#ifdef AR9170_TXAGG_DEBUG
+ printk(KERN_DEBUG "%s: generate A-MPDU for tid:%d ssn:%d with "
+ "%d queued frames.\n", wiphy_name(ar->hw->wiphy),
+ tid_info->tid, tid_info->ssn,
+ skb_queue_len(&tid_info->queue));
+ __ar9170_dump_txqueue(ar, &tid_info->queue);
+#endif /* AR9170_TXAGG_DEBUG */
+
+ while ((skb = skb_peek(&tid_info->queue))) {
+ if (unlikely(ar9170_get_seq(skb) != seq))
+ break;
+
+ __skb_unlink(skb, &tid_info->queue);
+ tid_info->ssn = seq = GET_NEXT_SEQ(seq);
+
+ if (unlikely(skb_get_queue_mapping(skb) != queue)) {
+#ifdef AR9170_TXAGG_DEBUG
+ printk(KERN_DEBUG "%s: tid:%d(q:%d) queue:%d "
+ "!match.\n", wiphy_name(ar->hw->wiphy),
+ tid_info->tid,
+ TID_TO_WME_AC(tid_info->tid),
+ skb_get_queue_mapping(skb));
+#endif /* AR9170_TXAGG_DEBUG */
+ dev_kfree_skb_any(skb);
+ continue;
+ }
+
+ if (unlikely(first == skb)) {
+ ar9170_tx_prepare_phy(ar, skb);
+ __skb_queue_tail(&agg, skb);
+ first = skb;
+ } else {
+ ar9170_tx_copy_phy(ar, skb, first);
+ __skb_queue_tail(&agg, skb);
+ }
+
+ if (unlikely(skb_queue_len(&agg) ==
+ AR9170_NUM_TX_AGG_MAX))
+ break;
+ }
+
+ if (skb_queue_empty(&tid_info->queue))
+ tid_info->active = false;
+ else
+ list_add_tail(&tid_info->list,
+ &ar->tx_ampdu_list);
+
+ spin_unlock_irqrestore(&tid_info->queue.lock, f2);
+
+ if (unlikely(skb_queue_empty(&agg))) {
+#ifdef AR9170_TXAGG_DEBUG
+ printk(KERN_DEBUG "%s: queued empty list!\n",
+ wiphy_name(ar->hw->wiphy));
+#endif /* AR9170_TXAGG_DEBUG */
+ continue;
+ }
+
+ /*
+ * tell the FW/HW that this is the last frame,
+ * that way it will wait for the immediate block ack.
+ */
+ if (likely(skb_peek_tail(&agg)))
+ ar9170_tx_indicate_immba(ar, skb_peek_tail(&agg));
+
+#ifdef AR9170_TXAGG_DEBUG
+ printk(KERN_DEBUG "%s: generated A-MPDU looks like this:\n",
+ wiphy_name(ar->hw->wiphy));
+ __ar9170_dump_txqueue(ar, &agg);
+#endif /* AR9170_TXAGG_DEBUG */
+
+ spin_unlock_irqrestore(&ar->tx_ampdu_list_lock, flags);
+
+ spin_lock_irqsave(&ar->tx_pending[queue].lock, flags);
+ skb_queue_splice_tail_init(&agg, &ar->tx_pending[queue]);
+ spin_unlock_irqrestore(&ar->tx_pending[queue].lock, flags);
+ run = true;
+
+ spin_lock_irqsave(&ar->tx_ampdu_list_lock, flags);
+ }
+
+out_unlock:
+ spin_unlock_irqrestore(&ar->tx_ampdu_list_lock, flags);
+ __skb_queue_purge(&agg);
+
+ return run;
+}
+
static void ar9170_tx(struct ar9170 *ar)
{
struct sk_buff *skb;
@@ -1382,11 +1720,17 @@ static void ar9170_tx(struct ar9170 *ar)
printk(KERN_DEBUG "%s: queue %d full\n",
wiphy_name(ar->hw->wiphy), i);
- __ar9170_dump_txstats(ar);
- printk(KERN_DEBUG "stuck frames: ===> \n");
+ printk(KERN_DEBUG "%s: stuck frames: ===> \n",
+ wiphy_name(ar->hw->wiphy));
ar9170_dump_txqueue(ar, &ar->tx_pending[i]);
ar9170_dump_txqueue(ar, &ar->tx_status[i]);
#endif /* AR9170_QUEUE_DEBUG */
+
+#ifdef AR9170_QUEUE_STOP_DEBUG
+ printk(KERN_DEBUG "%s: stop queue %d\n",
+ wiphy_name(ar->hw->wiphy), i);
+ __ar9170_dump_txstats(ar);
+#endif /* AR9170_QUEUE_STOP_DEBUG */
ieee80211_stop_queue(ar->hw, i);
spin_unlock_irqrestore(&ar->tx_stats_lock, flags);
continue;
@@ -1401,8 +1745,6 @@ static void ar9170_tx(struct ar9170 *ar)
"remaining slots:%d, needed:%d\n",
wiphy_name(ar->hw->wiphy), i, remaining_space,
frames);
-
- ar9170_dump_txstats(ar);
#endif /* AR9170_QUEUE_DEBUG */
frames = remaining_space;
}
@@ -1430,6 +1772,9 @@ static void ar9170_tx(struct ar9170 *ar)
arinfo->timeout = jiffies +
msecs_to_jiffies(AR9170_TX_TIMEOUT);
+ if (arinfo->flags == AR9170_TX_FLAG_BLOCK_ACK)
+ ar->tx_ampdu_pending++;
+
#ifdef AR9170_QUEUE_DEBUG
printk(KERN_DEBUG "%s: send frame q:%d =>\n",
wiphy_name(ar->hw->wiphy), i);
@@ -1438,6 +1783,9 @@ static void ar9170_tx(struct ar9170 *ar)
err = ar->tx(ar, skb);
if (unlikely(err)) {
+ if (arinfo->flags == AR9170_TX_FLAG_BLOCK_ACK)
+ ar->tx_ampdu_pending--;
+
frames_failed++;
dev_kfree_skb_any(skb);
} else {
@@ -1459,22 +1807,113 @@ static void ar9170_tx(struct ar9170 *ar)
if (unlikely(frames_failed)) {
#ifdef AR9170_QUEUE_DEBUG
- printk(KERN_DEBUG "%s: frames failed =>\n",
+ printk(KERN_DEBUG "%s: frames failed %d =>\n",
wiphy_name(ar->hw->wiphy), frames_failed);
#endif /* AR9170_QUEUE_DEBUG */
spin_lock_irqsave(&ar->tx_stats_lock, flags);
ar->tx_stats[i].len -= frames_failed;
ar->tx_stats[i].count -= frames_failed;
+#ifdef AR9170_QUEUE_STOP_DEBUG
+ printk(KERN_DEBUG "%s: wake queue %d\n",
+ wiphy_name(ar->hw->wiphy), i);
+ __ar9170_dump_txstats(ar);
+#endif /* AR9170_QUEUE_STOP_DEBUG */
ieee80211_wake_queue(ar->hw, i);
spin_unlock_irqrestore(&ar->tx_stats_lock, flags);
}
}
- if (schedule_garbagecollector)
- queue_delayed_work(ar->hw->workqueue,
- &ar->tx_janitor,
- msecs_to_jiffies(AR9170_JANITOR_DELAY));
+ if (!schedule_garbagecollector)
+ return;
+
+ ieee80211_queue_delayed_work(ar->hw,
+ &ar->tx_janitor,
+ msecs_to_jiffies(AR9170_JANITOR_DELAY));
+}
+
+static bool ar9170_tx_ampdu_queue(struct ar9170 *ar, struct sk_buff *skb)
+{
+ struct ieee80211_tx_info *txinfo;
+ struct ar9170_sta_info *sta_info;
+ struct ar9170_sta_tid *agg;
+ struct sk_buff *iter;
+ unsigned long flags, f2;
+ unsigned int max;
+ u16 tid, seq, qseq;
+ bool run = false, queue = false;
+
+ tid = ar9170_get_tid(skb);
+ seq = ar9170_get_seq(skb);
+ txinfo = IEEE80211_SKB_CB(skb);
+ sta_info = (void *) txinfo->control.sta->drv_priv;
+ agg = &sta_info->agg[tid];
+ max = sta_info->ampdu_max_len;
+
+ spin_lock_irqsave(&ar->tx_ampdu_list_lock, flags);
+
+ if (unlikely(agg->state != AR9170_TID_STATE_COMPLETE)) {
+#ifdef AR9170_TXAGG_DEBUG
+ printk(KERN_DEBUG "%s: BlockACK session not fully initialized "
+ "for ESS:%pM tid:%d state:%d.\n",
+ wiphy_name(ar->hw->wiphy), agg->addr, agg->tid,
+ agg->state);
+#endif /* AR9170_TXAGG_DEBUG */
+ goto err_unlock;
+ }
+
+ if (!agg->active) {
+ agg->active = true;
+ agg->ssn = seq;
+ queue = true;
+ }
+
+ /* check if seq is within the BA window */
+ if (unlikely(!BAW_WITHIN(agg->ssn, max, seq))) {
+#ifdef AR9170_TXAGG_DEBUG
+ printk(KERN_DEBUG "%s: frame with tid:%d seq:%d does not "
+ "fit into BA window (%d - %d)\n",
+ wiphy_name(ar->hw->wiphy), tid, seq, agg->ssn,
+ (agg->ssn + max) & 0xfff);
+#endif /* AR9170_TXAGG_DEBUG */
+ goto err_unlock;
+ }
+
+ spin_lock_irqsave(&agg->queue.lock, f2);
+
+ skb_queue_reverse_walk(&agg->queue, iter) {
+ qseq = ar9170_get_seq(iter);
+
+ if (GET_NEXT_SEQ(qseq) == seq) {
+ __skb_queue_after(&agg->queue, iter, skb);
+ goto queued;
+ }
+ }
+
+ __skb_queue_head(&agg->queue, skb);
+
+queued:
+ spin_unlock_irqrestore(&agg->queue.lock, f2);
+
+#ifdef AR9170_TXAGG_DEBUG
+ printk(KERN_DEBUG "%s: new aggregate %p queued.\n",
+ wiphy_name(ar->hw->wiphy), skb);
+ __ar9170_dump_txqueue(ar, &agg->queue);
+#endif /* AR9170_TXAGG_DEBUG */
+
+ if (skb_queue_len(&agg->queue) >= AR9170_NUM_TX_AGG_MAX)
+ run = true;
+
+ if (queue)
+ list_add_tail(&agg->list, &ar->tx_ampdu_list);
+
+ spin_unlock_irqrestore(&ar->tx_ampdu_list_lock, flags);
+ return run;
+
+err_unlock:
+ spin_unlock_irqrestore(&ar->tx_ampdu_list_lock, flags);
+ dev_kfree_skb_irq(skb);
+ return false;
}
int ar9170_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
@@ -1490,8 +1929,10 @@ int ar9170_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
info = IEEE80211_SKB_CB(skb);
if (info->flags & IEEE80211_TX_CTL_AMPDU) {
- /* drop frame, we do not allow TX A-MPDU aggregation yet. */
- goto err_free;
+ bool run = ar9170_tx_ampdu_queue(ar, skb);
+
+ if (run || !ar->tx_ampdu_pending)
+ ar9170_tx_ampdu(ar);
} else {
unsigned int queue = skb_get_queue_mapping(skb);
@@ -1529,8 +1970,7 @@ static int ar9170_op_add_interface(struct ieee80211_hw *hw,
}
ar->cur_filter = 0;
- ar->want_filter = AR9170_MAC_REG_FTF_DEFAULTS;
- err = ar9170_update_frame_filter(ar);
+ err = ar9170_update_frame_filter(ar, AR9170_MAC_REG_FTF_DEFAULTS);
if (err)
goto unlock;
@@ -1548,8 +1988,7 @@ static void ar9170_op_remove_interface(struct ieee80211_hw *hw,
mutex_lock(&ar->mutex);
ar->vif = NULL;
- ar->want_filter = 0;
- ar9170_update_frame_filter(ar);
+ ar9170_update_frame_filter(ar, 0);
ar9170_set_beacon_timers(ar);
dev_kfree_skb(ar->beacon);
ar->beacon = NULL;
@@ -1592,12 +2031,6 @@ static int ar9170_op_config(struct ieee80211_hw *hw, u32 changed)
goto out;
}
- if (changed & BSS_CHANGED_BEACON_INT) {
- err = ar9170_set_beacon_timers(ar);
- if (err)
- goto out;
- }
-
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
/* adjust slot time for 5 GHz */
@@ -1621,48 +2054,37 @@ out:
return err;
}
-static void ar9170_set_filters(struct work_struct *work)
+static u64 ar9170_op_prepare_multicast(struct ieee80211_hw *hw, int mc_count,
+ struct dev_addr_list *mclist)
{
- struct ar9170 *ar = container_of(work, struct ar9170,
- filter_config_work);
- int err;
-
- if (unlikely(!IS_STARTED(ar)))
- return ;
-
- mutex_lock(&ar->mutex);
- if (test_and_clear_bit(AR9170_FILTER_CHANGED_MODE,
- &ar->filter_changed)) {
- err = ar9170_set_operating_mode(ar);
- if (err)
- goto unlock;
- }
+ u64 mchash;
+ int i;
- if (test_and_clear_bit(AR9170_FILTER_CHANGED_MULTICAST,
- &ar->filter_changed)) {
- err = ar9170_update_multicast(ar);
- if (err)
- goto unlock;
- }
+ /* always get broadcast frames */
+ mchash = 1ULL << (0xff >> 2);
- if (test_and_clear_bit(AR9170_FILTER_CHANGED_FRAMEFILTER,
- &ar->filter_changed)) {
- err = ar9170_update_frame_filter(ar);
- if (err)
- goto unlock;
+ for (i = 0; i < mc_count; i++) {
+ if (WARN_ON(!mclist))
+ break;
+ mchash |= 1ULL << (mclist->dmi_addr[5] >> 2);
+ mclist = mclist->next;
}
-unlock:
- mutex_unlock(&ar->mutex);
+ return mchash;
}
static void ar9170_op_configure_filter(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *new_flags,
- int mc_count, struct dev_mc_list *mclist)
+ u64 multicast)
{
struct ar9170 *ar = hw->priv;
+ if (unlikely(!IS_ACCEPTING_CMD(ar)))
+ return ;
+
+ mutex_lock(&ar->mutex);
+
/* mask supported flags */
*new_flags &= FIF_ALLMULTI | FIF_CONTROL | FIF_BCN_PRBRESP_PROMISC |
FIF_PROMISC_IN_BSS | FIF_FCSFAIL | FIF_PLCPFAIL;
@@ -1672,26 +2094,11 @@ static void ar9170_op_configure_filter(struct ieee80211_hw *hw,
* then checking the error flags, later.
*/
- if (changed_flags & FIF_ALLMULTI) {
- if (*new_flags & FIF_ALLMULTI) {
- ar->want_mc_hash = ~0ULL;
- } else {
- u64 mchash;
- int i;
-
- /* always get broadcast frames */
- mchash = 1ULL << (0xff >> 2);
+ if (changed_flags & FIF_ALLMULTI && *new_flags & FIF_ALLMULTI)
+ multicast = ~0ULL;
- for (i = 0; i < mc_count; i++) {
- if (WARN_ON(!mclist))
- break;
- mchash |= 1ULL << (mclist->dmi_addr[5] >> 2);
- mclist = mclist->next;
- }
- ar->want_mc_hash = mchash;
- }
- set_bit(AR9170_FILTER_CHANGED_MULTICAST, &ar->filter_changed);
- }
+ if (multicast != ar->cur_mc_hash)
+ ar9170_update_multicast(ar, multicast);
if (changed_flags & FIF_CONTROL) {
u32 filter = AR9170_MAC_REG_FTF_PSPOLL |
@@ -1702,24 +2109,22 @@ static void ar9170_op_configure_filter(struct ieee80211_hw *hw,
AR9170_MAC_REG_FTF_CFE_ACK;
if (*new_flags & FIF_CONTROL)
- ar->want_filter = ar->cur_filter | filter;
+ filter |= ar->cur_filter;
else
- ar->want_filter = ar->cur_filter & ~filter;
+ filter &= (~ar->cur_filter);
- set_bit(AR9170_FILTER_CHANGED_FRAMEFILTER,
- &ar->filter_changed);
+ ar9170_update_frame_filter(ar, filter);
}
if (changed_flags & FIF_PROMISC_IN_BSS) {
ar->sniffer_enabled = ((*new_flags) & FIF_PROMISC_IN_BSS) != 0;
- set_bit(AR9170_FILTER_CHANGED_MODE,
- &ar->filter_changed);
+ ar9170_set_operating_mode(ar);
}
- if (likely(IS_STARTED(ar)))
- queue_work(ar->hw->workqueue, &ar->filter_config_work);
+ mutex_unlock(&ar->mutex);
}
+
static void ar9170_op_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf,
@@ -1737,11 +2142,17 @@ static void ar9170_op_bss_info_changed(struct ieee80211_hw *hw,
goto out;
}
- if (changed & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_ENABLED)) {
+ if (changed & BSS_CHANGED_BEACON_ENABLED)
+ ar->enable_beacon = bss_conf->enable_beacon;
+
+ if (changed & BSS_CHANGED_BEACON) {
err = ar9170_update_beacon(ar);
if (err)
goto out;
+ }
+ if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON |
+ BSS_CHANGED_BEACON_INT)) {
err = ar9170_set_beacon_timers(ar);
if (err)
goto out;
@@ -1754,12 +2165,6 @@ static void ar9170_op_bss_info_changed(struct ieee80211_hw *hw,
#endif /* CONFIG_AR9170_LEDS */
}
- if (changed & BSS_CHANGED_BEACON_INT) {
- err = ar9170_set_beacon_timers(ar);
- if (err)
- goto out;
- }
-
if (changed & BSS_CHANGED_HT) {
/* TODO */
err = 0;
@@ -1929,6 +2334,50 @@ static void ar9170_sta_notify(struct ieee80211_hw *hw,
enum sta_notify_cmd cmd,
struct ieee80211_sta *sta)
{
+ struct ar9170 *ar = hw->priv;
+ struct ar9170_sta_info *sta_info = (void *) sta->drv_priv;
+ unsigned int i;
+
+ switch (cmd) {
+ case STA_NOTIFY_ADD:
+ memset(sta_info, 0, sizeof(*sta_info));
+
+ if (!sta->ht_cap.ht_supported)
+ break;
+
+ if (sta->ht_cap.ampdu_density > ar->global_ampdu_density)
+ ar->global_ampdu_density = sta->ht_cap.ampdu_density;
+
+ if (sta->ht_cap.ampdu_factor < ar->global_ampdu_factor)
+ ar->global_ampdu_factor = sta->ht_cap.ampdu_factor;
+
+ for (i = 0; i < AR9170_NUM_TID; i++) {
+ sta_info->agg[i].state = AR9170_TID_STATE_SHUTDOWN;
+ sta_info->agg[i].active = false;
+ sta_info->agg[i].ssn = 0;
+ sta_info->agg[i].retry = 0;
+ sta_info->agg[i].tid = i;
+ INIT_LIST_HEAD(&sta_info->agg[i].list);
+ skb_queue_head_init(&sta_info->agg[i].queue);
+ }
+
+ sta_info->ampdu_max_len = 1 << (3 + sta->ht_cap.ampdu_factor);
+ break;
+
+ case STA_NOTIFY_REMOVE:
+ if (!sta->ht_cap.ht_supported)
+ break;
+
+ for (i = 0; i < AR9170_NUM_TID; i++) {
+ sta_info->agg[i].state = AR9170_TID_STATE_INVALID;
+ skb_queue_purge(&sta_info->agg[i].queue);
+ }
+
+ break;
+
+ default:
+ break;
+ }
}
static int ar9170_get_stats(struct ieee80211_hw *hw,
@@ -1984,18 +2433,65 @@ static int ar9170_ampdu_action(struct ieee80211_hw *hw,
enum ieee80211_ampdu_mlme_action action,
struct ieee80211_sta *sta, u16 tid, u16 *ssn)
{
+ struct ar9170 *ar = hw->priv;
+ struct ar9170_sta_info *sta_info = (void *) sta->drv_priv;
+ struct ar9170_sta_tid *tid_info = &sta_info->agg[tid];
+ unsigned long flags;
+
+ if (!modparam_ht)
+ return -EOPNOTSUPP;
+
switch (action) {
+ case IEEE80211_AMPDU_TX_START:
+ spin_lock_irqsave(&ar->tx_ampdu_list_lock, flags);
+ if (tid_info->state != AR9170_TID_STATE_SHUTDOWN ||
+ !list_empty(&tid_info->list)) {
+ spin_unlock_irqrestore(&ar->tx_ampdu_list_lock, flags);
+#ifdef AR9170_TXAGG_DEBUG
+ printk(KERN_INFO "%s: A-MPDU [ESS:[%pM] tid:[%d]] "
+ "is in a very bad state!\n",
+ wiphy_name(hw->wiphy), sta->addr, tid);
+#endif /* AR9170_TXAGG_DEBUG */
+ return -EBUSY;
+ }
+
+ *ssn = tid_info->ssn;
+ tid_info->state = AR9170_TID_STATE_PROGRESS;
+ tid_info->active = false;
+ spin_unlock_irqrestore(&ar->tx_ampdu_list_lock, flags);
+ ieee80211_start_tx_ba_cb_irqsafe(hw, sta->addr, tid);
+ break;
+
+ case IEEE80211_AMPDU_TX_STOP:
+ spin_lock_irqsave(&ar->tx_ampdu_list_lock, flags);
+ tid_info->state = AR9170_TID_STATE_SHUTDOWN;
+ list_del_init(&tid_info->list);
+ tid_info->active = false;
+ skb_queue_purge(&tid_info->queue);
+ spin_unlock_irqrestore(&ar->tx_ampdu_list_lock, flags);
+ ieee80211_stop_tx_ba_cb_irqsafe(hw, sta->addr, tid);
+ break;
+
+ case IEEE80211_AMPDU_TX_OPERATIONAL:
+#ifdef AR9170_TXAGG_DEBUG
+ printk(KERN_INFO "%s: A-MPDU for %pM [tid:%d] Operational.\n",
+ wiphy_name(hw->wiphy), sta->addr, tid);
+#endif /* AR9170_TXAGG_DEBUG */
+ spin_lock_irqsave(&ar->tx_ampdu_list_lock, flags);
+ sta_info->agg[tid].state = AR9170_TID_STATE_COMPLETE;
+ spin_unlock_irqrestore(&ar->tx_ampdu_list_lock, flags);
+ break;
+
case IEEE80211_AMPDU_RX_START:
case IEEE80211_AMPDU_RX_STOP:
- /*
- * Something goes wrong -- RX locks up
- * after a while of receiving aggregated
- * frames -- not enabling for now.
- */
- return -EOPNOTSUPP;
+ /* Handled by firmware */
+ break;
+
default:
return -EOPNOTSUPP;
}
+
+ return 0;
}
static const struct ieee80211_ops ar9170_ops = {
@@ -2005,6 +2501,7 @@ static const struct ieee80211_ops ar9170_ops = {
.add_interface = ar9170_op_add_interface,
.remove_interface = ar9170_op_remove_interface,
.config = ar9170_op_config,
+ .prepare_multicast = ar9170_op_prepare_multicast,
.configure_filter = ar9170_op_configure_filter,
.conf_tx = ar9170_conf_tx,
.bss_info_changed = ar9170_op_bss_info_changed,
@@ -2044,14 +2541,16 @@ void *ar9170_alloc(size_t priv_size)
mutex_init(&ar->mutex);
spin_lock_init(&ar->cmdlock);
spin_lock_init(&ar->tx_stats_lock);
+ spin_lock_init(&ar->tx_ampdu_list_lock);
+ skb_queue_head_init(&ar->tx_status_ampdu);
for (i = 0; i < __AR9170_NUM_TXQ; i++) {
skb_queue_head_init(&ar->tx_status[i]);
skb_queue_head_init(&ar->tx_pending[i]);
}
ar9170_rx_reset_rx_mpdu(ar);
- INIT_WORK(&ar->filter_config_work, ar9170_set_filters);
INIT_WORK(&ar->beacon_work, ar9170_new_beacon);
INIT_DELAYED_WORK(&ar->tx_janitor, ar9170_tx_janitor);
+ INIT_LIST_HEAD(&ar->tx_ampdu_list);
/* all hw supports 2.4 GHz, so set channel to 1 by default */
ar->channel = &ar9170_2ghz_chantable[0];
@@ -2065,6 +2564,13 @@ void *ar9170_alloc(size_t priv_size)
IEEE80211_HW_SIGNAL_DBM |
IEEE80211_HW_NOISE_DBM;
+ if (modparam_ht) {
+ ar->hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
+ } else {
+ ar9170_band_2GHz.ht_cap.ht_supported = false;
+ ar9170_band_5GHz.ht_cap.ht_supported = false;
+ }
+
ar->hw->queues = __AR9170_NUM_TXQ;
ar->hw->extra_tx_headroom = 8;
ar->hw->sta_data_size = sizeof(struct ar9170_sta_info);
@@ -2086,10 +2592,11 @@ static int ar9170_read_eeprom(struct ar9170 *ar)
{
#define RW 8 /* number of words to read at once */
#define RB (sizeof(u32) * RW)
- DECLARE_MAC_BUF(mbuf);
+ struct ath_regulatory *regulatory = &ar->common.regulatory;
u8 *eeprom = (void *)&ar->eeprom;
u8 *addr = ar->eeprom.mac_address;
__le32 offsets[RW];
+ unsigned int rx_streams, tx_streams, tx_params = 0;
int i, j, err, bands = 0;
BUILD_BUG_ON(sizeof(ar->eeprom) & 3);
@@ -2126,6 +2633,20 @@ static int ar9170_read_eeprom(struct ar9170 *ar)
ar->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &ar9170_band_5GHz;
bands++;
}
+
+ rx_streams = hweight8(ar->eeprom.rx_mask);
+ tx_streams = hweight8(ar->eeprom.tx_mask);
+
+ if (rx_streams != tx_streams)
+ tx_params = IEEE80211_HT_MCS_TX_RX_DIFF;
+
+ if (tx_streams >= 1 && tx_streams <= IEEE80211_HT_MCS_TX_MAX_STREAMS)
+ tx_params = (tx_streams - 1) <<
+ IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
+
+ ar9170_band_2GHz.ht_cap.mcs.tx_params |= tx_params;
+ ar9170_band_5GHz.ht_cap.mcs.tx_params |= tx_params;
+
/*
* I measured this, a bandswitch takes roughly
* 135 ms and a frequency switch about 80.
@@ -2138,8 +2659,8 @@ static int ar9170_read_eeprom(struct ar9170 *ar)
else
ar->hw->channel_change_time = 80 * 1000;
- ar->regulatory.current_rd = le16_to_cpu(ar->eeprom.reg_domain[0]);
- ar->regulatory.current_rd_ext = le16_to_cpu(ar->eeprom.reg_domain[1]);
+ regulatory->current_rd = le16_to_cpu(ar->eeprom.reg_domain[0]);
+ regulatory->current_rd_ext = le16_to_cpu(ar->eeprom.reg_domain[1]);
/* second part of wiphy init */
SET_IEEE80211_PERM_ADDR(ar->hw, addr);
@@ -2153,11 +2674,12 @@ static int ar9170_reg_notifier(struct wiphy *wiphy,
struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
struct ar9170 *ar = hw->priv;
- return ath_reg_notifier_apply(wiphy, request, &ar->regulatory);
+ return ath_reg_notifier_apply(wiphy, request, &ar->common.regulatory);
}
int ar9170_register(struct ar9170 *ar, struct device *pdev)
{
+ struct ath_regulatory *regulatory = &ar->common.regulatory;
int err;
/* try to read EEPROM, init MAC addr */
@@ -2165,7 +2687,7 @@ int ar9170_register(struct ar9170 *ar, struct device *pdev)
if (err)
goto err_out;
- err = ath_regd_init(&ar->regulatory, ar->hw->wiphy,
+ err = ath_regd_init(regulatory, ar->hw->wiphy,
ar9170_reg_notifier);
if (err)
goto err_out;
@@ -2174,8 +2696,8 @@ int ar9170_register(struct ar9170 *ar, struct device *pdev)
if (err)
goto err_out;
- if (!ath_is_world_regd(&ar->regulatory))
- regulatory_hint(ar->hw->wiphy, ar->regulatory.alpha2);
+ if (!ath_is_world_regd(regulatory))
+ regulatory_hint(ar->hw->wiphy, regulatory->alpha2);
err = ar9170_init_leds(ar);
if (err)