Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6

6 files changed, 119 insertions, 192 deletions

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 796a3adffea..515880aa211 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -460,12 +460,9 @@ struct ath_led {
 	bool registered;
 };
 
-/* Rfkill */
-#define ATH_RFKILL_POLL_INTERVAL	2000 /* msecs */
-
 struct ath_rfkill {
 	struct rfkill *rfkill;
-	struct delayed_work rfkill_poll;
+	struct rfkill_ops ops;
 	char rfkill_name[32];
 };
 
@@ -509,8 +506,6 @@ struct ath_rfkill {
 #define SC_OP_RXFLUSH           BIT(7)
 #define SC_OP_LED_ASSOCIATED    BIT(8)
 #define SC_OP_RFKILL_REGISTERED BIT(9)
-#define SC_OP_RFKILL_SW_BLOCKED BIT(10)
-#define SC_OP_RFKILL_HW_BLOCKED BIT(11)
 #define SC_OP_WAIT_FOR_BEACON   BIT(12)
 #define SC_OP_LED_ON            BIT(13)
 #define SC_OP_SCANNING          BIT(14)
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index a21b21339fb..3639a2e6987 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -411,6 +411,7 @@ void ath_beacon_tasklet(unsigned long data)
 		} else if (sc->beacon.bmisscnt >= BSTUCK_THRESH) {
 			DPRINTF(sc, ATH_DBG_BEACON,
 				"beacon is officially stuck\n");
+			sc->sc_flags |= SC_OP_TSF_RESET;
 			ath_reset(sc, false);
 		}
 
@@ -673,6 +674,14 @@ static void ath_beacon_config_adhoc(struct ath_softc *sc,
 
 	intval = conf->beacon_interval & ATH9K_BEACON_PERIOD;
 
+	/*
+	 * It looks like mac80211 may end up using beacon interval of zero in
+	 * some cases (at least for mesh point). Avoid getting into an
+	 * infinite loop by using a bit safer value instead..
+	 */
+	if (intval == 0)
+		intval = 100;
+
 	/* Pull nexttbtt forward to reflect the current TSF */
 
 	nexttbtt = TSF_TO_TU(sc->beacon.bc_tstamp >> 32, sc->beacon.bc_tstamp);
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 97df20cbf52..6d20725d645 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);
 }
 
diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h
index db845cf960c..edda15bf2c1 100644
--- a/drivers/net/wireless/ath/ath9k/debug.h
+++ b/drivers/net/wireless/ath/ath9k/debug.h
@@ -80,11 +80,7 @@ struct ath_interrupt_stats {
 	u32 dtim;
 };
 
-struct ath_legacy_rc_stats {
-	u32 success;
-};
-
-struct ath_11n_rc_stats {
+struct ath_rc_stats {
 	u32 success;
 	u32 retries;
 	u32 xretries;
@@ -93,13 +89,13 @@ struct ath_11n_rc_stats {
 
 struct ath_stats {
 	struct ath_interrupt_stats istats;
-	struct ath_legacy_rc_stats legacy_rcstats[12];	/* max(11a,11b,11g) */
-	struct ath_11n_rc_stats n_rcstats[16];		/* 0..15 MCS rates */
+	struct ath_rc_stats rcstats[RATE_TABLE_SIZE];
 };
 
 struct ath9k_debug {
 	int debug_mask;
 	struct dentry *debugfs_phy;
+	struct dentry *debugfs_debug;
 	struct dentry *debugfs_dma;
 	struct dentry *debugfs_interrupt;
 	struct dentry *debugfs_rcstat;
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 61da08a1648..f7baa406918 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1192,120 +1192,69 @@ static bool ath_is_rfkill_set(struct ath_softc *sc)
 				  ah->rfkill_polarity;
 }
 
-/* h/w rfkill poll function */
-static void ath_rfkill_poll(struct work_struct *work)
+/* s/w rfkill handlers */
+static int ath_rfkill_set_block(void *data, bool blocked)
 {
-	struct ath_softc *sc = container_of(work, struct ath_softc,
-					    rf_kill.rfkill_poll.work);
-	bool radio_on;
-
-	if (sc->sc_flags & SC_OP_INVALID)
-		return;
-
-	radio_on = !ath_is_rfkill_set(sc);
-
-	/*
-	 * enable/disable radio only when there is a
-	 * state change in RF switch
-	 */
-	if (radio_on == !!(sc->sc_flags & SC_OP_RFKILL_HW_BLOCKED)) {
-		enum rfkill_state state;
-
-		if (sc->sc_flags & SC_OP_RFKILL_SW_BLOCKED) {
-			state = radio_on ? RFKILL_STATE_SOFT_BLOCKED
-				: RFKILL_STATE_HARD_BLOCKED;
-		} else if (radio_on) {
-			ath_radio_enable(sc);
-			state = RFKILL_STATE_UNBLOCKED;
-		} else {
-			ath_radio_disable(sc);
-			state = RFKILL_STATE_HARD_BLOCKED;
-		}
-
-		if (state == RFKILL_STATE_HARD_BLOCKED)
-			sc->sc_flags |= SC_OP_RFKILL_HW_BLOCKED;
-		else
-			sc->sc_flags &= ~SC_OP_RFKILL_HW_BLOCKED;
+	struct ath_softc *sc = data;
 
-		rfkill_force_state(sc->rf_kill.rfkill, state);
-	}
+	if (blocked)
+		ath_radio_disable(sc);
+	else
+		ath_radio_enable(sc);
 
-	queue_delayed_work(sc->hw->workqueue, &sc->rf_kill.rfkill_poll,
-			   msecs_to_jiffies(ATH_RFKILL_POLL_INTERVAL));
+	return 0;
 }
 
-/* s/w rfkill handler */
-static int ath_sw_toggle_radio(void *data, enum rfkill_state state)
+static void ath_rfkill_poll_state(struct rfkill *rfkill, void *data)
 {
 	struct ath_softc *sc = data;
+	bool blocked = !!ath_is_rfkill_set(sc);
 
-	switch (state) {
-	case RFKILL_STATE_SOFT_BLOCKED:
-		if (!(sc->sc_flags & (SC_OP_RFKILL_HW_BLOCKED |
-		    SC_OP_RFKILL_SW_BLOCKED)))
-			ath_radio_disable(sc);
-		sc->sc_flags |= SC_OP_RFKILL_SW_BLOCKED;
-		return 0;
-	case RFKILL_STATE_UNBLOCKED:
-		if ((sc->sc_flags & SC_OP_RFKILL_SW_BLOCKED)) {
-			sc->sc_flags &= ~SC_OP_RFKILL_SW_BLOCKED;
-			if (sc->sc_flags & SC_OP_RFKILL_HW_BLOCKED) {
-				DPRINTF(sc, ATH_DBG_FATAL, "Can't turn on the"
-					"radio as it is disabled by h/w\n");
-				return -EPERM;
-			}
-			ath_radio_enable(sc);
-		}
-		return 0;
-	default:
-		return -EINVAL;
-	}
+	if (rfkill_set_hw_state(rfkill, blocked))
+		ath_radio_disable(sc);
+	else
+		ath_radio_enable(sc);
 }
 
 /* Init s/w rfkill */
 static int ath_init_sw_rfkill(struct ath_softc *sc)
 {
-	sc->rf_kill.rfkill = rfkill_allocate(wiphy_dev(sc->hw->wiphy),
-					     RFKILL_TYPE_WLAN);
+	sc->rf_kill.ops.set_block = ath_rfkill_set_block;
+	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
+		sc->rf_kill.ops.poll = ath_rfkill_poll_state;
+
+	snprintf(sc->rf_kill.rfkill_name, sizeof(sc->rf_kill.rfkill_name),
+		"ath9k-%s::rfkill", wiphy_name(sc->hw->wiphy));
+
+	sc->rf_kill.rfkill = rfkill_alloc(sc->rf_kill.rfkill_name,
+					  wiphy_dev(sc->hw->wiphy),
+					  RFKILL_TYPE_WLAN,
+					  &sc->rf_kill.ops, sc);
 	if (!sc->rf_kill.rfkill) {
 		DPRINTF(sc, ATH_DBG_FATAL, "Failed to allocate rfkill\n");
 		return -ENOMEM;
 	}
 
-	snprintf(sc->rf_kill.rfkill_name, sizeof(sc->rf_kill.rfkill_name),
-		"ath9k-%s::rfkill", wiphy_name(sc->hw->wiphy));
-	sc->rf_kill.rfkill->name = sc->rf_kill.rfkill_name;
-	sc->rf_kill.rfkill->data = sc;
-	sc->rf_kill.rfkill->toggle_radio = ath_sw_toggle_radio;
-	sc->rf_kill.rfkill->state = RFKILL_STATE_UNBLOCKED;
-
 	return 0;
 }
 
 /* Deinitialize rfkill */
 static void ath_deinit_rfkill(struct ath_softc *sc)
 {
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-		cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll);
-
 	if (sc->sc_flags & SC_OP_RFKILL_REGISTERED) {
 		rfkill_unregister(sc->rf_kill.rfkill);
+		rfkill_destroy(sc->rf_kill.rfkill);
 		sc->sc_flags &= ~SC_OP_RFKILL_REGISTERED;
-		sc->rf_kill.rfkill = NULL;
 	}
 }
 
 static int ath_start_rfkill_poll(struct ath_softc *sc)
 {
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-		queue_delayed_work(sc->hw->workqueue,
-				   &sc->rf_kill.rfkill_poll, 0);
-
 	if (!(sc->sc_flags & SC_OP_RFKILL_REGISTERED)) {
 		if (rfkill_register(sc->rf_kill.rfkill)) {
 			DPRINTF(sc, ATH_DBG_FATAL,
 				"Unable to register rfkill\n");
-			rfkill_free(sc->rf_kill.rfkill);
+			rfkill_destroy(sc->rf_kill.rfkill);
 
 			/* Deinitialize the device */
 			ath_cleanup(sc);
@@ -1678,10 +1627,6 @@ int ath_attach(u16 devid, struct ath_softc *sc)
 		goto error_attach;
 
 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-	/* Initialze h/w Rfkill */
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-		INIT_DELAYED_WORK(&sc->rf_kill.rfkill_poll, ath_rfkill_poll);
-
 	/* Initialize s/w rfkill */
 	error = ath_init_sw_rfkill(sc);
 	if (error)
@@ -2214,10 +2159,8 @@ static void ath9k_stop(struct ieee80211_hw *hw)
 	} else
 		sc->rx.rxlink = NULL;
 
-#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-		cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll);
-#endif
+	rfkill_pause_polling(sc->rf_kill.rfkill);
+
 	/* disable HAL and put h/w to sleep */
 	ath9k_hw_disable(sc->sc_ah);
 	ath9k_hw_configpcipowersave(sc->sc_ah, 1);
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index 168411d322a..ccdf20a2e9b 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -227,11 +227,6 @@ static int ath_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 
 	ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
 
-#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-		cancel_delayed_work_sync(&sc->rf_kill.rfkill_poll);
-#endif
-
 	pci_save_state(pdev);
 	pci_disable_device(pdev);
 	pci_set_power_state(pdev, PCI_D3hot);
@@ -256,16 +251,6 @@ static int ath_pci_resume(struct pci_dev *pdev)
 			    AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
 	ath9k_hw_set_gpio(sc->sc_ah, ATH_LED_PIN, 1);
 
-#if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
-	/*
-	 * check the h/w rfkill state on resume
-	 * and start the rfkill poll timer
-	 */
-	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
-		queue_delayed_work(sc->hw->workqueue,
-				   &sc->rf_kill.rfkill_poll, 0);
-#endif
-
 	return 0;
 }