1 files changed, 435 insertions, 223 deletions

diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 43e71a944cb..bad1a87249b 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -15,6 +15,7 @@
  */
 
 #include <linux/slab.h>
+#include <linux/vmalloc.h>
 #include <asm/unaligned.h>
 
 #include "ath9k.h"
@@ -24,14 +25,25 @@
 #define REG_READ_D(_ah, _reg) \
 	ath9k_hw_common(_ah)->ops->read((_ah), (_reg))
 
-static struct dentry *ath9k_debugfs_root;
-
 static int ath9k_debugfs_open(struct inode *inode, struct file *file)
 {
 	file->private_data = inode->i_private;
 	return 0;
 }
 
+static ssize_t ath9k_debugfs_read_buf(struct file *file, char __user *user_buf,
+				      size_t count, loff_t *ppos)
+{
+	u8 *buf = file->private_data;
+	return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
+}
+
+static int ath9k_debugfs_release_buf(struct inode *inode, struct file *file)
+{
+	vfree(file->private_data);
+	return 0;
+}
+
 #ifdef CONFIG_ATH_DEBUG
 
 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
@@ -314,6 +326,8 @@ void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
 		sc->debug.stats.istats.dtimsync++;
 	if (status & ATH9K_INT_DTIM)
 		sc->debug.stats.istats.dtim++;
+	if (status & ATH9K_INT_TSFOOR)
+		sc->debug.stats.istats.tsfoor++;
 }
 
 static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
@@ -368,8 +382,11 @@ static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
 	len += snprintf(buf + len, sizeof(buf) - len,
 		"%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim);
 	len += snprintf(buf + len, sizeof(buf) - len,
+		"%8s: %10u\n", "TSFOOR", sc->debug.stats.istats.tsfoor);
+	len += snprintf(buf + len, sizeof(buf) - len,
 		"%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total);
 
+
 	if (len > sizeof(buf))
 		len = sizeof(buf);
 
@@ -383,41 +400,40 @@ static const struct file_operations fops_interrupt = {
 	.llseek = default_llseek,
 };
 
-static const char * ath_wiphy_state_str(enum ath_wiphy_state state)
+static const char *channel_type_str(enum nl80211_channel_type t)
 {
-	switch (state) {
-	case ATH_WIPHY_INACTIVE:
-		return "INACTIVE";
-	case ATH_WIPHY_ACTIVE:
-		return "ACTIVE";
-	case ATH_WIPHY_PAUSING:
-		return "PAUSING";
-	case ATH_WIPHY_PAUSED:
-		return "PAUSED";
-	case ATH_WIPHY_SCAN:
-		return "SCAN";
+	switch (t) {
+	case NL80211_CHAN_NO_HT:
+		return "no ht";
+	case NL80211_CHAN_HT20:
+		return "ht20";
+	case NL80211_CHAN_HT40MINUS:
+		return "ht40-";
+	case NL80211_CHAN_HT40PLUS:
+		return "ht40+";
+	default:
+		return "???";
 	}
-	return "?";
 }
 
 static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
 			       size_t count, loff_t *ppos)
 {
 	struct ath_softc *sc = file->private_data;
-	struct ath_wiphy *aphy = sc->pri_wiphy;
-	struct ieee80211_channel *chan = aphy->hw->conf.channel;
+	struct ieee80211_channel *chan = sc->hw->conf.channel;
+	struct ieee80211_conf *conf = &(sc->hw->conf);
 	char buf[512];
 	unsigned int len = 0;
-	int i;
 	u8 addr[ETH_ALEN];
 	u32 tmp;
 
 	len += snprintf(buf + len, sizeof(buf) - len,
-			"primary: %s (%s chan=%d ht=%d)\n",
-			wiphy_name(sc->pri_wiphy->hw->wiphy),
-			ath_wiphy_state_str(sc->pri_wiphy->state),
+			"%s (chan=%d  center-freq: %d MHz  channel-type: %d (%s))\n",
+			wiphy_name(sc->hw->wiphy),
 			ieee80211_frequency_to_channel(chan->center_freq),
-			aphy->chan_is_ht);
+			chan->center_freq,
+			conf->channel_type,
+			channel_type_str(conf->channel_type));
 
 	put_unaligned_le32(REG_READ_D(sc->sc_ah, AR_STA_ID0), addr);
 	put_unaligned_le16(REG_READ_D(sc->sc_ah, AR_STA_ID1) & 0xffff, addr + 4);
@@ -459,156 +475,82 @@ static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
 	else
 		len += snprintf(buf + len, sizeof(buf) - len, "\n");
 
-	/* Put variable-length stuff down here, and check for overflows. */
-	for (i = 0; i < sc->num_sec_wiphy; i++) {
-		struct ath_wiphy *aphy = sc->sec_wiphy[i];
-		if (aphy == NULL)
-			continue;
-		chan = aphy->hw->conf.channel;
-		len += snprintf(buf + len, sizeof(buf) - len,
-			"secondary: %s (%s chan=%d ht=%d)\n",
-			wiphy_name(aphy->hw->wiphy),
-			ath_wiphy_state_str(aphy->state),
-			ieee80211_frequency_to_channel(chan->center_freq),
-			aphy->chan_is_ht);
-	}
 	if (len > sizeof(buf))
 		len = sizeof(buf);
 
 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
 }
 
-static struct ath_wiphy * get_wiphy(struct ath_softc *sc, const char *name)
-{
-	int i;
-	if (strcmp(name, wiphy_name(sc->pri_wiphy->hw->wiphy)) == 0)
-		return sc->pri_wiphy;
-	for (i = 0; i < sc->num_sec_wiphy; i++) {
-		struct ath_wiphy *aphy = sc->sec_wiphy[i];
-		if (aphy && strcmp(name, wiphy_name(aphy->hw->wiphy)) == 0)
-			return aphy;
-	}
-	return NULL;
-}
-
-static int del_wiphy(struct ath_softc *sc, const char *name)
-{
-	struct ath_wiphy *aphy = get_wiphy(sc, name);
-	if (!aphy)
-		return -ENOENT;
-	return ath9k_wiphy_del(aphy);
-}
-
-static int pause_wiphy(struct ath_softc *sc, const char *name)
-{
-	struct ath_wiphy *aphy = get_wiphy(sc, name);
-	if (!aphy)
-		return -ENOENT;
-	return ath9k_wiphy_pause(aphy);
-}
-
-static int unpause_wiphy(struct ath_softc *sc, const char *name)
-{
-	struct ath_wiphy *aphy = get_wiphy(sc, name);
-	if (!aphy)
-		return -ENOENT;
-	return ath9k_wiphy_unpause(aphy);
-}
-
-static int select_wiphy(struct ath_softc *sc, const char *name)
-{
-	struct ath_wiphy *aphy = get_wiphy(sc, name);
-	if (!aphy)
-		return -ENOENT;
-	return ath9k_wiphy_select(aphy);
-}
-
-static int schedule_wiphy(struct ath_softc *sc, const char *msec)
-{
-	ath9k_wiphy_set_scheduler(sc, simple_strtoul(msec, NULL, 0));
-	return 0;
-}
-
-static ssize_t write_file_wiphy(struct file *file, const char __user *user_buf,
-				size_t count, loff_t *ppos)
-{
-	struct ath_softc *sc = file->private_data;
-	char buf[50];
-	size_t len;
-
-	len = min(count, sizeof(buf) - 1);
-	if (copy_from_user(buf, user_buf, len))
-		return -EFAULT;
-	buf[len] = '\0';
-	if (len > 0 && buf[len - 1] == '\n')
-		buf[len - 1] = '\0';
-
-	if (strncmp(buf, "add", 3) == 0) {
-		int res = ath9k_wiphy_add(sc);
-		if (res < 0)
-			return res;
-	} else if (strncmp(buf, "del=", 4) == 0) {
-		int res = del_wiphy(sc, buf + 4);
-		if (res < 0)
-			return res;
-	} else if (strncmp(buf, "pause=", 6) == 0) {
-		int res = pause_wiphy(sc, buf + 6);
-		if (res < 0)
-			return res;
-	} else if (strncmp(buf, "unpause=", 8) == 0) {
-		int res = unpause_wiphy(sc, buf + 8);
-		if (res < 0)
-			return res;
-	} else if (strncmp(buf, "select=", 7) == 0) {
-		int res = select_wiphy(sc, buf + 7);
-		if (res < 0)
-			return res;
-	} else if (strncmp(buf, "schedule=", 9) == 0) {
-		int res = schedule_wiphy(sc, buf + 9);
-		if (res < 0)
-			return res;
-	} else
-		return -EOPNOTSUPP;
-
-	return count;
-}
-
 static const struct file_operations fops_wiphy = {
 	.read = read_file_wiphy,
-	.write = write_file_wiphy,
 	.open = ath9k_debugfs_open,
 	.owner = THIS_MODULE,
 	.llseek = default_llseek,
 };
 
+#define PR_QNUM(_n) sc->tx.txq_map[_n]->axq_qnum
 #define PR(str, elem)							\
 	do {								\
 		len += snprintf(buf + len, size - len,			\
 				"%s%13u%11u%10u%10u\n", str,		\
-		sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_BE]].elem, \
-		sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_BK]].elem, \
-		sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_VI]].elem, \
-		sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_VO]].elem); \
+		sc->debug.stats.txstats[PR_QNUM(WME_AC_BE)].elem, \
+		sc->debug.stats.txstats[PR_QNUM(WME_AC_BK)].elem, \
+		sc->debug.stats.txstats[PR_QNUM(WME_AC_VI)].elem, \
+		sc->debug.stats.txstats[PR_QNUM(WME_AC_VO)].elem); \
+		if (len >= size)			  \
+			goto done;			  \
+} while(0)
+
+#define PRX(str, elem)							\
+do {									\
+	len += snprintf(buf + len, size - len,				\
+			"%s%13u%11u%10u%10u\n", str,			\
+			(unsigned int)(sc->tx.txq_map[WME_AC_BE]->elem),	\
+			(unsigned int)(sc->tx.txq_map[WME_AC_BK]->elem),	\
+			(unsigned int)(sc->tx.txq_map[WME_AC_VI]->elem),	\
+			(unsigned int)(sc->tx.txq_map[WME_AC_VO]->elem));	\
+	if (len >= size)						\
+		goto done;						\
 } while(0)
 
+#define PRQLE(str, elem)						\
+do {									\
+	len += snprintf(buf + len, size - len,				\
+			"%s%13i%11i%10i%10i\n", str,			\
+			list_empty(&sc->tx.txq_map[WME_AC_BE]->elem),	\
+			list_empty(&sc->tx.txq_map[WME_AC_BK]->elem),	\
+			list_empty(&sc->tx.txq_map[WME_AC_VI]->elem),	\
+			list_empty(&sc->tx.txq_map[WME_AC_VO]->elem));	\
+	if (len >= size)						\
+		goto done;						\
+} while (0)
+
 static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
 			      size_t count, loff_t *ppos)
 {
 	struct ath_softc *sc = file->private_data;
 	char *buf;
-	unsigned int len = 0, size = 2048;
+	unsigned int len = 0, size = 8000;
+	int i;
 	ssize_t retval = 0;
+	char tmp[32];
 
 	buf = kzalloc(size, GFP_KERNEL);
 	if (buf == NULL)
 		return -ENOMEM;
 
-	len += sprintf(buf, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
+	len += sprintf(buf, "Num-Tx-Queues: %i  tx-queues-setup: 0x%x"
+		       " poll-work-seen: %u\n"
+		       "%30s %10s%10s%10s\n\n",
+		       ATH9K_NUM_TX_QUEUES, sc->tx.txqsetup,
+		       sc->tx_complete_poll_work_seen,
+		       "BE", "BK", "VI", "VO");
 
 	PR("MPDUs Queued:    ", queued);
 	PR("MPDUs Completed: ", completed);
 	PR("Aggregates:      ", a_aggr);
-	PR("AMPDUs Queued:   ", a_queued);
+	PR("AMPDUs Queued HW:", a_queued_hw);
+	PR("AMPDUs Queued SW:", a_queued_sw);
 	PR("AMPDUs Completed:", a_completed);
 	PR("AMPDUs Retried:  ", a_retries);
 	PR("AMPDUs XRetried: ", a_xretries);
@@ -620,7 +562,62 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
 	PR("DELIM Underrun:  ", delim_underrun);
 	PR("TX-Pkts-All:     ", tx_pkts_all);
 	PR("TX-Bytes-All:    ", tx_bytes_all);
+	PR("hw-put-tx-buf:   ", puttxbuf);
+	PR("hw-tx-start:     ", txstart);
+	PR("hw-tx-proc-desc: ", txprocdesc);
+	len += snprintf(buf + len, size - len,
+			"%s%11p%11p%10p%10p\n", "txq-memory-address:",
+			sc->tx.txq_map[WME_AC_BE],
+			sc->tx.txq_map[WME_AC_BK],
+			sc->tx.txq_map[WME_AC_VI],
+			sc->tx.txq_map[WME_AC_VO]);
+	if (len >= size)
+		goto done;
+
+	PRX("axq-qnum:        ", axq_qnum);
+	PRX("axq-depth:       ", axq_depth);
+	PRX("axq-ampdu_depth: ", axq_ampdu_depth);
+	PRX("axq-stopped      ", stopped);
+	PRX("tx-in-progress   ", axq_tx_inprogress);
+	PRX("pending-frames   ", pending_frames);
+	PRX("txq_headidx:     ", txq_headidx);
+	PRX("txq_tailidx:     ", txq_headidx);
+
+	PRQLE("axq_q empty:       ", axq_q);
+	PRQLE("axq_acq empty:     ", axq_acq);
+	PRQLE("txq_fifo_pending:  ", txq_fifo_pending);
+	for (i = 0; i < ATH_TXFIFO_DEPTH; i++) {
+		snprintf(tmp, sizeof(tmp) - 1, "txq_fifo[%i] empty: ", i);
+		PRQLE(tmp, txq_fifo[i]);
+	}
+
+	/* Print out more detailed queue-info */
+	for (i = 0; i <= WME_AC_BK; i++) {
+		struct ath_txq *txq = &(sc->tx.txq[i]);
+		struct ath_atx_ac *ac;
+		struct ath_atx_tid *tid;
+		if (len >= size)
+			goto done;
+		spin_lock_bh(&txq->axq_lock);
+		if (!list_empty(&txq->axq_acq)) {
+			ac = list_first_entry(&txq->axq_acq, struct ath_atx_ac,
+					      list);
+			len += snprintf(buf + len, size - len,
+					"txq[%i] first-ac: %p sched: %i\n",
+					i, ac, ac->sched);
+			if (list_empty(&ac->tid_q) || (len >= size))
+				goto done_for;
+			tid = list_first_entry(&ac->tid_q, struct ath_atx_tid,
+					       list);
+			len += snprintf(buf + len, size - len,
+					" first-tid: %p sched: %i paused: %i\n",
+					tid, tid->sched, tid->paused);
+		}
+	done_for:
+		spin_unlock_bh(&txq->axq_lock);
+	}
 
+done:
 	if (len > size)
 		len = size;
 
@@ -630,33 +627,197 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
 	return retval;
 }
 
-void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
-		       struct ath_buf *bf, struct ath_tx_status *ts)
+static ssize_t read_file_stations(struct file *file, char __user *user_buf,
+				  size_t count, loff_t *ppos)
 {
-	TX_STAT_INC(txq->axq_qnum, tx_pkts_all);
-	sc->debug.stats.txstats[txq->axq_qnum].tx_bytes_all += bf->bf_mpdu->len;
+	struct ath_softc *sc = file->private_data;
+	char *buf;
+	unsigned int len = 0, size = 64000;
+	struct ath_node *an = NULL;
+	ssize_t retval = 0;
+	int q;
+
+	buf = kzalloc(size, GFP_KERNEL);
+	if (buf == NULL)
+		return -ENOMEM;
+
+	len += snprintf(buf + len, size - len,
+			"Stations:\n"
+			" tid: addr sched paused buf_q-empty an ac\n"
+			" ac: addr sched tid_q-empty txq\n");
+
+	spin_lock(&sc->nodes_lock);
+	list_for_each_entry(an, &sc->nodes, list) {
+		len += snprintf(buf + len, size - len,
+				"%pM\n", an->sta->addr);
+		if (len >= size)
+			goto done;
+
+		for (q = 0; q < WME_NUM_TID; q++) {
+			struct ath_atx_tid *tid = &(an->tid[q]);
+			len += snprintf(buf + len, size - len,
+					" tid: %p %s %s %i %p %p\n",
+					tid, tid->sched ? "sched" : "idle",
+					tid->paused ? "paused" : "running",
+					list_empty(&tid->buf_q),
+					tid->an, tid->ac);
+			if (len >= size)
+				goto done;
+		}
+
+		for (q = 0; q < WME_NUM_AC; q++) {
+			struct ath_atx_ac *ac = &(an->ac[q]);
+			len += snprintf(buf + len, size - len,
+					" ac: %p %s %i %p\n",
+					ac, ac->sched ? "sched" : "idle",
+					list_empty(&ac->tid_q), ac->txq);
+			if (len >= size)
+				goto done;
+		}
+	}
+
+done:
+	spin_unlock(&sc->nodes_lock);
+	if (len > size)
+		len = size;
+
+	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+	kfree(buf);
+
+	return retval;
+}
+
+static ssize_t read_file_misc(struct file *file, char __user *user_buf,
+			      size_t count, loff_t *ppos)
+{
+	struct ath_softc *sc = file->private_data;
+	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+	struct ath_hw *ah = sc->sc_ah;
+	struct ieee80211_hw *hw = sc->hw;
+	char *buf;
+	unsigned int len = 0, size = 8000;
+	ssize_t retval = 0;
+	const char *tmp;
+	unsigned int reg;
+	struct ath9k_vif_iter_data iter_data;
+
+	ath9k_calculate_iter_data(hw, NULL, &iter_data);
+	
+	buf = kzalloc(size, GFP_KERNEL);
+	if (buf == NULL)
+		return -ENOMEM;
+
+	switch (sc->sc_ah->opmode) {
+	case  NL80211_IFTYPE_ADHOC:
+		tmp = "ADHOC";
+		break;
+	case  NL80211_IFTYPE_MESH_POINT:
+		tmp = "MESH";
+		break;
+	case  NL80211_IFTYPE_AP:
+		tmp = "AP";
+		break;
+	case  NL80211_IFTYPE_STATION:
+		tmp = "STATION";
+		break;
+	default:
+		tmp = "???";
+		break;
+	}
+
+	len += snprintf(buf + len, size - len,
+			"curbssid: %pM\n"
+			"OP-Mode: %s(%i)\n"
+			"Beacon-Timer-Register: 0x%x\n",
+			common->curbssid,
+			tmp, (int)(sc->sc_ah->opmode),
+			REG_READ(ah, AR_BEACON_PERIOD));
+
+	reg = REG_READ(ah, AR_TIMER_MODE);
+	len += snprintf(buf + len, size - len, "Timer-Mode-Register: 0x%x (",
+			reg);
+	if (reg & AR_TBTT_TIMER_EN)
+		len += snprintf(buf + len, size - len, "TBTT ");
+	if (reg & AR_DBA_TIMER_EN)
+		len += snprintf(buf + len, size - len, "DBA ");
+	if (reg & AR_SWBA_TIMER_EN)
+		len += snprintf(buf + len, size - len, "SWBA ");
+	if (reg & AR_HCF_TIMER_EN)
+		len += snprintf(buf + len, size - len, "HCF ");
+	if (reg & AR_TIM_TIMER_EN)
+		len += snprintf(buf + len, size - len, "TIM ");
+	if (reg & AR_DTIM_TIMER_EN)
+		len += snprintf(buf + len, size - len, "DTIM ");
+	len += snprintf(buf + len, size - len, ")\n");
+
+	reg = sc->sc_ah->imask;
+	len += snprintf(buf + len, size - len, "imask: 0x%x (", reg);
+	if (reg & ATH9K_INT_SWBA)
+		len += snprintf(buf + len, size - len, "SWBA ");
+	if (reg & ATH9K_INT_BMISS)
+		len += snprintf(buf + len, size - len, "BMISS ");
+	if (reg & ATH9K_INT_CST)
+		len += snprintf(buf + len, size - len, "CST ");
+	if (reg & ATH9K_INT_RX)
+		len += snprintf(buf + len, size - len, "RX ");
+	if (reg & ATH9K_INT_RXHP)
+		len += snprintf(buf + len, size - len, "RXHP ");
+	if (reg & ATH9K_INT_RXLP)
+		len += snprintf(buf + len, size - len, "RXLP ");
+	if (reg & ATH9K_INT_BB_WATCHDOG)
+		len += snprintf(buf + len, size - len, "BB_WATCHDOG ");
+	/* there are other IRQs if one wanted to add them. */
+	len += snprintf(buf + len, size - len, ")\n");
+
+	len += snprintf(buf + len, size - len,
+			"VIF Counts: AP: %i STA: %i MESH: %i WDS: %i"
+			" ADHOC: %i OTHER: %i nvifs: %hi beacon-vifs: %hi\n",
+			iter_data.naps, iter_data.nstations, iter_data.nmeshes,
+			iter_data.nwds, iter_data.nadhocs, iter_data.nothers,
+			sc->nvifs, sc->nbcnvifs);
+
+	len += snprintf(buf + len, size - len,
+			"Calculated-BSSID-Mask: %pM\n",
+			iter_data.mask);
+
+	if (len > size)
+		len = size;
+
+	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+	kfree(buf);
+
+	return retval;
+}
+
+void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
+		       struct ath_tx_status *ts, struct ath_txq *txq)
+{
+	int qnum = txq->axq_qnum;
+
+	TX_STAT_INC(qnum, tx_pkts_all);
+	sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
 
 	if (bf_isampdu(bf)) {
 		if (bf_isxretried(bf))
-			TX_STAT_INC(txq->axq_qnum, a_xretries);
+			TX_STAT_INC(qnum, a_xretries);
 		else
-			TX_STAT_INC(txq->axq_qnum, a_completed);
+			TX_STAT_INC(qnum, a_completed);
 	} else {
-		TX_STAT_INC(txq->axq_qnum, completed);
+		TX_STAT_INC(qnum, completed);
 	}
 
 	if (ts->ts_status & ATH9K_TXERR_FIFO)
-		TX_STAT_INC(txq->axq_qnum, fifo_underrun);
+		TX_STAT_INC(qnum, fifo_underrun);
 	if (ts->ts_status & ATH9K_TXERR_XTXOP)
-		TX_STAT_INC(txq->axq_qnum, xtxop);
+		TX_STAT_INC(qnum, xtxop);
 	if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
-		TX_STAT_INC(txq->axq_qnum, timer_exp);
+		TX_STAT_INC(qnum, timer_exp);
 	if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
-		TX_STAT_INC(txq->axq_qnum, desc_cfg_err);
+		TX_STAT_INC(qnum, desc_cfg_err);
 	if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
-		TX_STAT_INC(txq->axq_qnum, data_underrun);
+		TX_STAT_INC(qnum, data_underrun);
 	if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
-		TX_STAT_INC(txq->axq_qnum, delim_underrun);
+		TX_STAT_INC(qnum, delim_underrun);
 }
 
 static const struct file_operations fops_xmit = {
@@ -666,6 +827,20 @@ static const struct file_operations fops_xmit = {
 	.llseek = default_llseek,
 };
 
+static const struct file_operations fops_stations = {
+	.read = read_file_stations,
+	.open = ath9k_debugfs_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
+static const struct file_operations fops_misc = {
+	.read = read_file_misc,
+	.open = ath9k_debugfs_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 			      size_t count, loff_t *ppos)
 {
@@ -675,7 +850,7 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 
 	struct ath_softc *sc = file->private_data;
 	char *buf;
-	unsigned int len = 0, size = 1152;
+	unsigned int len = 0, size = 1400;
 	ssize_t retval = 0;
 
 	buf = kzalloc(size, GFP_KERNEL);
@@ -704,6 +879,34 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 			"%18s : %10u\n", "DECRYPT BUSY ERR",
 			sc->debug.stats.rxstats.decrypt_busy_err);
 
+	len += snprintf(buf + len, size - len,
+			"%18s : %10d\n", "RSSI-CTL0",
+			sc->debug.stats.rxstats.rs_rssi_ctl0);
+
+	len += snprintf(buf + len, size - len,
+			"%18s : %10d\n", "RSSI-CTL1",
+			sc->debug.stats.rxstats.rs_rssi_ctl1);
+
+	len += snprintf(buf + len, size - len,
+			"%18s : %10d\n", "RSSI-CTL2",
+			sc->debug.stats.rxstats.rs_rssi_ctl2);
+
+	len += snprintf(buf + len, size - len,
+			"%18s : %10d\n", "RSSI-EXT0",
+			sc->debug.stats.rxstats.rs_rssi_ext0);
+
+	len += snprintf(buf + len, size - len,
+			"%18s : %10d\n", "RSSI-EXT1",
+			sc->debug.stats.rxstats.rs_rssi_ext1);
+
+	len += snprintf(buf + len, size - len,
+			"%18s : %10d\n", "RSSI-EXT2",
+			sc->debug.stats.rxstats.rs_rssi_ext2);
+
+	len += snprintf(buf + len, size - len,
+			"%18s : %10d\n", "Rx Antenna",
+			sc->debug.stats.rxstats.rs_antenna);
+
 	PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN);
 	PHY_ERR("TIMING", ATH9K_PHYERR_TIMING);
 	PHY_ERR("PARITY", ATH9K_PHYERR_PARITY);
@@ -778,6 +981,16 @@ void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
 		RX_PHY_ERR_INC(phyerr);
 	}
 
+	sc->debug.stats.rxstats.rs_rssi_ctl0 = rs->rs_rssi_ctl0;
+	sc->debug.stats.rxstats.rs_rssi_ctl1 = rs->rs_rssi_ctl1;
+	sc->debug.stats.rxstats.rs_rssi_ctl2 = rs->rs_rssi_ctl2;
+
+	sc->debug.stats.rxstats.rs_rssi_ext0 = rs->rs_rssi_ext0;
+	sc->debug.stats.rxstats.rs_rssi_ext1 = rs->rs_rssi_ext1;
+	sc->debug.stats.rxstats.rs_rssi_ext2 = rs->rs_rssi_ext2;
+
+	sc->debug.stats.rxstats.rs_antenna = rs->rs_antenna;
+
 #undef RX_STAT_INC
 #undef RX_PHY_ERR_INC
 }
@@ -871,91 +1084,90 @@ static const struct file_operations fops_regval = {
 	.llseek = default_llseek,
 };
 
-int ath9k_init_debug(struct ath_hw *ah)
-{
-	struct ath_common *common = ath9k_hw_common(ah);
-	struct ath_softc *sc = (struct ath_softc *) common->priv;
+#define REGDUMP_LINE_SIZE	20
 
-	if (!ath9k_debugfs_root)
-		return -ENOENT;
+static int open_file_regdump(struct inode *inode, struct file *file)
+{
+	struct ath_softc *sc = inode->i_private;
+	unsigned int len = 0;
+	u8 *buf;
+	int i;
+	unsigned long num_regs, regdump_len, max_reg_offset;
 
-	sc->debug.debugfs_phy = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
-						      ath9k_debugfs_root);
-	if (!sc->debug.debugfs_phy)
+	max_reg_offset = AR_SREV_9300_20_OR_LATER(sc->sc_ah) ? 0x16bd4 : 0xb500;
+	num_regs = max_reg_offset / 4 + 1;
+	regdump_len = num_regs * REGDUMP_LINE_SIZE + 1;
+	buf = vmalloc(regdump_len);
+	if (!buf)
 		return -ENOMEM;
 
-#ifdef CONFIG_ATH_DEBUG
-	if (!debugfs_create_file("debug", S_IRUSR | S_IWUSR,
-			sc->debug.debugfs_phy, sc, &fops_debug))
-		goto err;
-#endif
-
-	if (!debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy,
-			sc, &fops_dma))
-		goto err;
-
-	if (!debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy,
-			sc, &fops_interrupt))
-		goto err;
-
-	if (!debugfs_create_file("wiphy", S_IRUSR | S_IWUSR,
-			sc->debug.debugfs_phy, sc, &fops_wiphy))
-		goto err;
-
-	if (!debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy,
-			sc, &fops_xmit))
-		goto err;
-
-	if (!debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy,
-			sc, &fops_recv))
-		goto err;
-
-	if (!debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
-			sc->debug.debugfs_phy, sc, &fops_rx_chainmask))
-		goto err;
-
-	if (!debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
-			sc->debug.debugfs_phy, sc, &fops_tx_chainmask))
-		goto err;
-
-	if (!debugfs_create_file("regidx", S_IRUSR | S_IWUSR,
-			sc->debug.debugfs_phy, sc, &fops_regidx))
-		goto err;
-
-	if (!debugfs_create_file("regval", S_IRUSR | S_IWUSR,
-			sc->debug.debugfs_phy, sc, &fops_regval))
-		goto err;
+	ath9k_ps_wakeup(sc);
+	for (i = 0; i < num_regs; i++)
+		len += scnprintf(buf + len, regdump_len - len,
+			"0x%06x 0x%08x\n", i << 2, REG_READ(sc->sc_ah, i << 2));
+	ath9k_ps_restore(sc);
 
-	if (!debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR,
-			sc->debug.debugfs_phy, &ah->config.cwm_ignore_extcca))
-		goto err;
+	file->private_data = buf;
 
-	sc->debug.regidx = 0;
 	return 0;
-err:
-	ath9k_exit_debug(ah);
-	return -ENOMEM;
 }
 
-void ath9k_exit_debug(struct ath_hw *ah)
+static const struct file_operations fops_regdump = {
+	.open = open_file_regdump,
+	.read = ath9k_debugfs_read_buf,
+	.release = ath9k_debugfs_release_buf,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,/* read accesses f_pos */
+};
+
+int ath9k_init_debug(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ath_softc *sc = (struct ath_softc *) common->priv;
 
-	debugfs_remove_recursive(sc->debug.debugfs_phy);
-}
+	sc->debug.debugfs_phy = debugfs_create_dir("ath9k",
+						   sc->hw->wiphy->debugfsdir);
+	if (!sc->debug.debugfs_phy)
+		return -ENOMEM;
 
-int ath9k_debug_create_root(void)
-{
-	ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
-	if (!ath9k_debugfs_root)
-		return -ENOENT;
+#ifdef CONFIG_ATH_DEBUG
+	debugfs_create_file("debug", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
+			    sc, &fops_debug);
+#endif
+	debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc,
+			    &fops_dma);
+	debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc,
+			    &fops_interrupt);
+	debugfs_create_file("wiphy", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
+			    sc, &fops_wiphy);
+	debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy, sc,
+			    &fops_xmit);
+	debugfs_create_file("stations", S_IRUSR, sc->debug.debugfs_phy, sc,
+			    &fops_stations);
+	debugfs_create_file("misc", S_IRUSR, sc->debug.debugfs_phy, sc,
+			    &fops_misc);
+	debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy, sc,
+			    &fops_recv);
+	debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR,
+			    sc->debug.debugfs_phy, sc, &fops_rx_chainmask);
+	debugfs_create_file("tx_chainmask", S_IRUSR | S_IWUSR,
+			    sc->debug.debugfs_phy, sc, &fops_tx_chainmask);
+	debugfs_create_file("regidx", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
+			    sc, &fops_regidx);
+	debugfs_create_file("regval", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
+			    sc, &fops_regval);
+	debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR,
+			    sc->debug.debugfs_phy,
+			    &ah->config.cwm_ignore_extcca);
+	debugfs_create_file("regdump", S_IRUSR, sc->debug.debugfs_phy, sc,
+			    &fops_regdump);
+
+	debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
+			   sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
+
+	debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR,
+			   sc->debug.debugfs_phy, &sc->sc_ah->gpio_val);
 
+	sc->debug.regidx = 0;
 	return 0;
 }
-
-void ath9k_debug_remove_root(void)
-{
-	debugfs_remove(ath9k_debugfs_root);
-	ath9k_debugfs_root = NULL;
-}