1 files changed, 77 insertions, 78 deletions

diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 97df20cbf528..6d20725d6451 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -44,6 +44,44 @@ static int ath9k_debugfs_open(struct inode *inode, struct file *file)
 	return 0;
 }
 
+static ssize_t read_file_debug(struct file *file, char __user *user_buf,
+			     size_t count, loff_t *ppos)
+{
+	struct ath_softc *sc = file->private_data;
+	char buf[32];
+	unsigned int len;
+
+	len = snprintf(buf, sizeof(buf), "0x%08x\n", sc->debug.debug_mask);
+	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
+			     size_t count, loff_t *ppos)
+{
+	struct ath_softc *sc = file->private_data;
+	unsigned long mask;
+	char buf[32];
+	ssize_t len;
+
+	len = min(count, sizeof(buf) - 1);
+	if (copy_from_user(buf, user_buf, len))
+		return -EINVAL;
+
+	buf[len] = '\0';
+	if (strict_strtoul(buf, 0, &mask))
+		return -EINVAL;
+
+	sc->debug.debug_mask = mask;
+	return count;
+}
+
+static const struct file_operations fops_debug = {
+	.read = read_file_debug,
+	.write = write_file_debug,
+	.open = ath9k_debugfs_open,
+	.owner = THIS_MODULE
+};
+
 static ssize_t read_file_dma(struct file *file, char __user *user_buf,
 			     size_t count, loff_t *ppos)
 {
@@ -224,111 +262,66 @@ static const struct file_operations fops_interrupt = {
 	.owner = THIS_MODULE
 };
 
-static void ath_debug_stat_11n_rc(struct ath_softc *sc, struct sk_buff *skb)
-{
-	struct ath_tx_info_priv *tx_info_priv = NULL;
-	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
-	struct ieee80211_tx_rate *rates = tx_info->status.rates;
-	int final_ts_idx, idx;
-
-	tx_info_priv = ATH_TX_INFO_PRIV(tx_info);
-	final_ts_idx = tx_info_priv->tx.ts_rateindex;
-	idx = sc->cur_rate_table->info[rates[final_ts_idx].idx].dot11rate;
-
-	sc->debug.stats.n_rcstats[idx].success++;
-}
-
-static void ath_debug_stat_legacy_rc(struct ath_softc *sc, struct sk_buff *skb)
+void ath_debug_stat_rc(struct ath_softc *sc, struct sk_buff *skb)
 {
 	struct ath_tx_info_priv *tx_info_priv = NULL;
 	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
 	struct ieee80211_tx_rate *rates = tx_info->status.rates;
 	int final_ts_idx, idx;
+	struct ath_rc_stats *stats;
 
 	tx_info_priv = ATH_TX_INFO_PRIV(tx_info);
 	final_ts_idx = tx_info_priv->tx.ts_rateindex;
 	idx = rates[final_ts_idx].idx;
-
-	sc->debug.stats.legacy_rcstats[idx].success++;
-}
-
-void ath_debug_stat_rc(struct ath_softc *sc, struct sk_buff *skb)
-{
-	if (conf_is_ht(&sc->hw->conf))
-		ath_debug_stat_11n_rc(sc, skb);
-	else
-		ath_debug_stat_legacy_rc(sc, skb);
+	stats = &sc->debug.stats.rcstats[idx];
+	stats->success++;
 }
 
-/* FIXME: legacy rates, later on .. */
 void ath_debug_stat_retries(struct ath_softc *sc, int rix,
 			    int xretries, int retries, u8 per)
 {
-	if (conf_is_ht(&sc->hw->conf)) {
-		int idx = sc->cur_rate_table->info[rix].dot11rate;
+	struct ath_rc_stats *stats = &sc->debug.stats.rcstats[rix];
 
-		sc->debug.stats.n_rcstats[idx].xretries += xretries;
-		sc->debug.stats.n_rcstats[idx].retries += retries;
-		sc->debug.stats.n_rcstats[idx].per = per;
-	}
+	stats->xretries += xretries;
+	stats->retries += retries;
+	stats->per = per;
 }
 
-static ssize_t ath_read_file_stat_11n_rc(struct file *file,
-					 char __user *user_buf,
-					 size_t count, loff_t *ppos)
+static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
+				size_t count, loff_t *ppos)
 {
 	struct ath_softc *sc = file->private_data;
-	char buf[1024];
-	unsigned int len = 0;
+	char *buf;
+	unsigned int len = 0, max;
 	int i = 0;
+	ssize_t retval;
 
-	len += sprintf(buf, "%7s %13s %8s %8s %6s\n\n", "Rate", "Success",
-		       "Retries", "XRetries", "PER");
-
-	for (i = 0; i <= 15; i++) {
-		len += snprintf(buf + len, sizeof(buf) - len,
-				"%5s%3d: %8u %8u %8u %8u\n", "MCS", i,
-				sc->debug.stats.n_rcstats[i].success,
-				sc->debug.stats.n_rcstats[i].retries,
-				sc->debug.stats.n_rcstats[i].xretries,
-				sc->debug.stats.n_rcstats[i].per);
-	}
-
-	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
-}
+	if (sc->cur_rate_table == NULL)
+		return 0;
 
-static ssize_t ath_read_file_stat_legacy_rc(struct file *file,
-					    char __user *user_buf,
-					    size_t count, loff_t *ppos)
-{
-	struct ath_softc *sc = file->private_data;
-	char buf[512];
-	unsigned int len = 0;
-	int i = 0;
+	max = 80 + sc->cur_rate_table->rate_cnt * 64;
+	buf = kmalloc(max + 1, GFP_KERNEL);
+	if (buf == NULL)
+		return 0;
+	buf[max] = 0;
 
-	len += sprintf(buf, "%7s %13s\n\n", "Rate", "Success");
+	len += sprintf(buf, "%5s %15s %8s %9s %3s\n\n", "Rate", "Success",
+		       "Retries", "XRetries", "PER");
 
 	for (i = 0; i < sc->cur_rate_table->rate_cnt; i++) {
-		len += snprintf(buf + len, sizeof(buf) - len, "%5u: %12u\n",
-				sc->cur_rate_table->info[i].ratekbps / 1000,
-				sc->debug.stats.legacy_rcstats[i].success);
+		u32 ratekbps = sc->cur_rate_table->info[i].ratekbps;
+		struct ath_rc_stats *stats = &sc->debug.stats.rcstats[i];
+
+		len += snprintf(buf + len, max - len,
+			"%3u.%d: %8u %8u %8u %8u\n", ratekbps / 1000,
+			(ratekbps % 1000) / 100, stats->success,
+			stats->retries, stats->xretries,
+			stats->per);
 	}
 
-	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
-}
-
-static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
-				size_t count, loff_t *ppos)
-{
-	struct ath_softc *sc = file->private_data;
-
-	if (sc->cur_rate_table == NULL)
-		return 0;
-
-	if (conf_is_ht(&sc->hw->conf))
-		return ath_read_file_stat_11n_rc(file, user_buf, count, ppos);
-	else
-		return ath_read_file_stat_legacy_rc(file, user_buf, count ,ppos);
+	retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+	kfree(buf);
+	return retval;
 }
 
 static const struct file_operations fops_rcstat = {
@@ -506,6 +499,11 @@ int ath9k_init_debug(struct ath_softc *sc)
 	if (!sc->debug.debugfs_phy)
 		goto err;
 
+	sc->debug.debugfs_debug = debugfs_create_file("debug",
+		S_IRUGO | S_IWUSR, sc->debug.debugfs_phy, sc, &fops_debug);
+	if (!sc->debug.debugfs_debug)
+		goto err;
+
 	sc->debug.debugfs_dma = debugfs_create_file("dma", S_IRUGO,
 				       sc->debug.debugfs_phy, sc, &fops_dma);
 	if (!sc->debug.debugfs_dma)
@@ -543,6 +541,7 @@ void ath9k_exit_debug(struct ath_softc *sc)
 	debugfs_remove(sc->debug.debugfs_rcstat);
 	debugfs_remove(sc->debug.debugfs_interrupt);
 	debugfs_remove(sc->debug.debugfs_dma);
+	debugfs_remove(sc->debug.debugfs_debug);
 	debugfs_remove(sc->debug.debugfs_phy);
 }