Merge branch 'for-davem' of...

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

Documentation/feature-removal-schedule.txt

@@ -35,6 +35,17 @@ Who:	Luis R. Rodriguez <lrodriguez@atheros.com>
 
 ---------------------------
 
+What:	AR9170USB
+When:	2.6.40
+
+Why:	This driver is deprecated and the firmware is no longer
+	maintained. The replacement driver "carl9170" has been
+	around for a while, so the devices are still supported.
+
+Who:	Christian Lamparter <chunkeey@googlemail.com>
+
+---------------------------
+
 What:	IRQF_SAMPLE_RANDOM
 Check:	IRQF_SAMPLE_RANDOM
 When:	July 2009

MAINTAINERS

@@ -1205,7 +1205,7 @@ ATHEROS AR9170 WIRELESS DRIVER
 M:	Christian Lamparter <chunkeey@web.de>
 L:	linux-wireless@vger.kernel.org
 W:	http://wireless.kernel.org/en/users/Drivers/ar9170
-S:	Maintained
+S:	Obsolete
 F:	drivers/net/wireless/ath/ar9170/
 
 CARL9170 LINUX COMMUNITY WIRELESS DRIVER

drivers/bluetooth/ath3k.c

@@ -31,6 +31,30 @@
 
 #define VERSION "1.0"
 
+#define ATH3K_DNLOAD				0x01
+#define ATH3K_GETSTATE				0x05
+#define ATH3K_SET_NORMAL_MODE			0x07
+#define ATH3K_GETVERSION			0x09
+#define USB_REG_SWITCH_VID_PID			0x0a
+
+#define ATH3K_MODE_MASK				0x3F
+#define ATH3K_NORMAL_MODE			0x0E
+
+#define ATH3K_PATCH_UPDATE			0x80
+#define ATH3K_SYSCFG_UPDATE			0x40
+
+#define ATH3K_XTAL_FREQ_26M			0x00
+#define ATH3K_XTAL_FREQ_40M			0x01
+#define ATH3K_XTAL_FREQ_19P2			0x02
+#define ATH3K_NAME_LEN				0xFF
+
+struct ath3k_version {
+	unsigned int	rom_version;
+	unsigned int	build_version;
+	unsigned int	ram_version;
+	unsigned char	ref_clock;
+	unsigned char	reserved[0x07];
+};
 
 static struct usb_device_id ath3k_table[] = {
 	/* Atheros AR3011 */
@@ -41,13 +65,32 @@ static struct usb_device_id ath3k_table[] = {
 
 	/* Atheros AR9285 Malbec with sflash firmware */
 	{ USB_DEVICE(0x03F0, 0x311D) },
+
+	/* Atheros AR3012 with sflash firmware*/
+	{ USB_DEVICE(0x0CF3, 0x3004) },
+
+	/* Atheros AR5BBU12 with sflash firmware */
+	{ USB_DEVICE(0x0489, 0xE02C) },
+
 	{ }	/* Terminating entry */
 };
 
 MODULE_DEVICE_TABLE(usb, ath3k_table);
 
+#define BTUSB_ATH3012		0x80
+/* This table is to load patch and sysconfig files
+ * for AR3012 */
+static struct usb_device_id ath3k_blist_tbl[] = {
+
+	/* Atheros AR3012 with sflash firmware*/
+	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
+
+	{ }	/* Terminating entry */
+};
+
 #define USB_REQ_DFU_DNLOAD	1
 #define BULK_SIZE		4096
+#define FW_HDR_SIZE		20
 
 static int ath3k_load_firmware(struct usb_device *udev,
 				const struct firmware *firmware)
@@ -103,28 +146,265 @@ static int ath3k_load_firmware(struct usb_device *udev,
 	return err;
 }
 
+static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
+{
+	int pipe = 0;
+
+	pipe = usb_rcvctrlpipe(udev, 0);
+	return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
+			USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
+			state, 0x01, USB_CTRL_SET_TIMEOUT);
+}
+
+static int ath3k_get_version(struct usb_device *udev,
+			struct ath3k_version *version)
+{
+	int pipe = 0;
+
+	pipe = usb_rcvctrlpipe(udev, 0);
+	return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
+			USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, version,
+			sizeof(struct ath3k_version),
+			USB_CTRL_SET_TIMEOUT);
+}
+
+static int ath3k_load_fwfile(struct usb_device *udev,
+		const struct firmware *firmware)
+{
+	u8 *send_buf;
+	int err, pipe, len, size, count, sent = 0;
+	int ret;
+
+	count = firmware->size;
+
+	send_buf = kmalloc(BULK_SIZE, GFP_ATOMIC);
+	if (!send_buf) {
+		BT_ERR("Can't allocate memory chunk for firmware");
+		return -ENOMEM;
+	}
+
+	size = min_t(uint, count, FW_HDR_SIZE);
+	memcpy(send_buf, firmware->data, size);
+
+	pipe = usb_sndctrlpipe(udev, 0);
+	ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
+			USB_TYPE_VENDOR, 0, 0, send_buf,
+			size, USB_CTRL_SET_TIMEOUT);
+	if (ret < 0) {
+		BT_ERR("Can't change to loading configuration err");
+		kfree(send_buf);
+		return ret;
+	}
+
+	sent += size;
+	count -= size;
+
+	while (count) {
+		size = min_t(uint, count, BULK_SIZE);
+		pipe = usb_sndbulkpipe(udev, 0x02);
+
+		memcpy(send_buf, firmware->data + sent, size);
+
+		err = usb_bulk_msg(udev, pipe, send_buf, size,
+					&len, 3000);
+		if (err || (len != size)) {
+			BT_ERR("Error in firmware loading err = %d,"
+				"len = %d, size = %d", err, len, size);
+			kfree(send_buf);
+			return err;
+		}
+		sent  += size;
+		count -= size;
+	}
+
+	kfree(send_buf);
+	return 0;
+}
+
+static int ath3k_switch_pid(struct usb_device *udev)
+{
+	int pipe = 0;
+
+	pipe = usb_sndctrlpipe(udev, 0);
+	return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
+			USB_TYPE_VENDOR, 0, 0,
+			NULL, 0, USB_CTRL_SET_TIMEOUT);
+}
+
+static int ath3k_set_normal_mode(struct usb_device *udev)
+{
+	unsigned char fw_state;
+	int pipe = 0, ret;
+
+	ret = ath3k_get_state(udev, &fw_state);
+	if (ret < 0) {
+		BT_ERR("Can't get state to change to normal mode err");
+		return ret;
+	}
+
+	if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
+		BT_DBG("firmware was already in normal mode");
+		return 0;
+	}
+
+	pipe = usb_sndctrlpipe(udev, 0);
+	return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
+			USB_TYPE_VENDOR, 0, 0,
+			NULL, 0, USB_CTRL_SET_TIMEOUT);
+}
+
+static int ath3k_load_patch(struct usb_device *udev)
+{
+	unsigned char fw_state;
+	char filename[ATH3K_NAME_LEN] = {0};
+	const struct firmware *firmware;
+	struct ath3k_version fw_version, pt_version;
+	int ret;
+
+	ret = ath3k_get_state(udev, &fw_state);
+	if (ret < 0) {
+		BT_ERR("Can't get state to change to load ram patch err");
+		return ret;
+	}
+
+	if (fw_state & ATH3K_PATCH_UPDATE) {
+		BT_DBG("Patch was already downloaded");
+		return 0;
+	}
+
+	ret = ath3k_get_version(udev, &fw_version);
+	if (ret < 0) {
+		BT_ERR("Can't get version to change to load ram patch err");
+		return ret;
+	}
+
+	snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
+		fw_version.rom_version);
+
+	ret = request_firmware(&firmware, filename, &udev->dev);
+	if (ret < 0) {
+		BT_ERR("Patch file not found %s", filename);
+		return ret;
+	}
+
+	pt_version.rom_version = *(int *)(firmware->data + firmware->size - 8);
+	pt_version.build_version = *(int *)
+		(firmware->data + firmware->size - 4);
+
+	if ((pt_version.rom_version != fw_version.rom_version) ||
+		(pt_version.build_version <= fw_version.build_version)) {
+		BT_ERR("Patch file version did not match with firmware");
+		release_firmware(firmware);
+		return -EINVAL;
+	}
+
+	ret = ath3k_load_fwfile(udev, firmware);
+	release_firmware(firmware);
+
+	return ret;
+}
+
+static int ath3k_load_syscfg(struct usb_device *udev)
+{
+	unsigned char fw_state;
+	char filename[ATH3K_NAME_LEN] = {0};
+	const struct firmware *firmware;
+	struct ath3k_version fw_version;
+	int clk_value, ret;
+
+	ret = ath3k_get_state(udev, &fw_state);
+	if (ret < 0) {
+		BT_ERR("Can't get state to change to load configration err");
+		return -EBUSY;
+	}
+
+	ret = ath3k_get_version(udev, &fw_version);
+	if (ret < 0) {
+		BT_ERR("Can't get version to change to load ram patch err");
+		return ret;
+	}
+
+	switch (fw_version.ref_clock) {
+
+	case ATH3K_XTAL_FREQ_26M:
+		clk_value = 26;
+		break;
+	case ATH3K_XTAL_FREQ_40M:
+		clk_value = 40;
+		break;
+	case ATH3K_XTAL_FREQ_19P2:
+		clk_value = 19;
+		break;
+	default:
+		clk_value = 0;
+		break;
+	}
+
+	snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
+		fw_version.rom_version, clk_value, ".dfu");
+
+	ret = request_firmware(&firmware, filename, &udev->dev);
+	if (ret < 0) {
+		BT_ERR("Configuration file not found %s", filename);
+		return ret;
+	}
+
+	ret = ath3k_load_fwfile(udev, firmware);
+	release_firmware(firmware);
+
+	return ret;
+}
+
 static int ath3k_probe(struct usb_interface *intf,
 			const struct usb_device_id *id)
 {
 	const struct firmware *firmware;
 	struct usb_device *udev = interface_to_usbdev(intf);
+	int ret;
 
 	BT_DBG("intf %p id %p", intf, id);
 
 	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 		return -ENODEV;
 
-	if (request_firmware(&firmware, "ath3k-1.fw", &udev->dev) < 0) {
-		return -EIO;
+	/* match device ID in ath3k blacklist table */
+	if (!id->driver_info) {
+		const struct usb_device_id *match;
+		match = usb_match_id(intf, ath3k_blist_tbl);
+		if (match)
+			id = match;
 	}
 
-	if (ath3k_load_firmware(udev, firmware)) {
-		release_firmware(firmware);
+	/* load patch and sysconfig files for AR3012 */
+	if (id->driver_info & BTUSB_ATH3012) {
+		ret = ath3k_load_patch(udev);
+		if (ret < 0) {
+			BT_ERR("Loading patch file failed");
+			return ret;
+		}
+		ret = ath3k_load_syscfg(udev);
+		if (ret < 0) {
+			BT_ERR("Loading sysconfig file failed");
+			return ret;
+		}
+		ret = ath3k_set_normal_mode(udev);
+		if (ret < 0) {
+			BT_ERR("Set normal mode failed");
+			return ret;
+		}
+		ath3k_switch_pid(udev);
+		return 0;
+	}
+
+	if (request_firmware(&firmware, "ath3k-1.fw", &udev->dev) < 0) {
+		BT_ERR("Error loading firmware");
 		return -EIO;
 	}
+
+	ret = ath3k_load_firmware(udev, firmware);
 	release_firmware(firmware);
 
-	return 0;
+	return ret;
 }
 
 static void ath3k_disconnect(struct usb_interface *intf)

drivers/bluetooth/btusb.c

@@ -105,6 +105,12 @@ static struct usb_device_id blacklist_table[] = {
 	/* Atheros AR9285 Malbec with sflash firmware */
 	{ USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 
+	/* Atheros 3012 with sflash firmware */
+	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_IGNORE },
+
+	/* Atheros AR5BBU12 with sflash firmware */
+	{ USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
+
 	/* Broadcom BCM2035 */
 	{ USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 	{ USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
@@ -711,15 +717,11 @@ static int btusb_send_frame(struct sk_buff *skb)
 		pipe = usb_sndisocpipe(data->udev,
 					data->isoc_tx_ep->bEndpointAddress);
 
-		urb->dev      = data->udev;
-		urb->pipe     = pipe;
-		urb->context  = skb;
-		urb->complete = btusb_isoc_tx_complete;
-		urb->interval = data->isoc_tx_ep->bInterval;
+		usb_fill_int_urb(urb, data->udev, pipe,
+				skb->data, skb->len, btusb_isoc_tx_complete,
+				skb, data->isoc_tx_ep->bInterval);
 
 		urb->transfer_flags  = URB_ISO_ASAP;
-		urb->transfer_buffer = skb->data;
-		urb->transfer_buffer_length = skb->len;
 
 		__fill_isoc_descriptor(urb, skb->len,
 				le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
@@ -829,7 +831,7 @@ static void btusb_work(struct work_struct *work)
 
 	if (hdev->conn_hash.sco_num > 0) {
 		if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
-			err = usb_autopm_get_interface(data->isoc);
+			err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 			if (err < 0) {
 				clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 				usb_kill_anchored_urbs(&data->isoc_anchor);
@@ -858,7 +860,7 @@ static void btusb_work(struct work_struct *work)
 
 		__set_isoc_interface(hdev, 0);
 		if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
-			usb_autopm_put_interface(data->isoc);
+			usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 	}
 }
 

drivers/bluetooth/hci_ldisc.c

@@ -398,6 +398,7 @@ static int hci_uart_register_dev(struct hci_uart *hu)
 	hdev->flush = hci_uart_flush;
 	hdev->send  = hci_uart_send_frame;
 	hdev->destruct = hci_uart_destruct;
+	hdev->parent = hu->tty->dev;
 
 	hdev->owner = THIS_MODULE;
 

drivers/net/wireless/ath/ar9170/Kconfig

 config AR9170_USB
-	tristate "Atheros AR9170 802.11n USB support"
+	tristate "Atheros AR9170 802.11n USB support (OBSOLETE)"
 	depends on USB && MAC80211
 	select FW_LOADER
 	help
+	  This driver is going to get replaced by carl9170.
+
 	  This is a driver for the Atheros "otus" 802.11n USB devices.
 
 	  These devices require additional firmware (2 files).

drivers/net/wireless/ath/ath5k/ath5k.h

@@ -1158,6 +1158,26 @@ void ath5k_hw_deinit(struct ath5k_hw *ah);
 int ath5k_sysfs_register(struct ath5k_softc *sc);
 void ath5k_sysfs_unregister(struct ath5k_softc *sc);
 
+/* base.c */
+struct ath5k_buf;
+struct ath5k_txq;
+
+void set_beacon_filter(struct ieee80211_hw *hw, bool enable);
+bool ath_any_vif_assoc(struct ath5k_softc *sc);
+int ath5k_tx_queue(struct ieee80211_hw *hw, struct sk_buff *skb,
+		   struct ath5k_txq *txq);
+int ath5k_init_hw(struct ath5k_softc *sc);
+int ath5k_stop_hw(struct ath5k_softc *sc);
+void ath5k_mode_setup(struct ath5k_softc *sc, struct ieee80211_vif *vif);
+void ath5k_update_bssid_mask_and_opmode(struct ath5k_softc *sc,
+					struct ieee80211_vif *vif);
+int ath5k_chan_set(struct ath5k_softc *sc, struct ieee80211_channel *chan);
+void ath5k_beacon_update_timers(struct ath5k_softc *sc, u64 bc_tsf);
+int ath5k_beacon_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
+void ath5k_beacon_config(struct ath5k_softc *sc);
+void ath5k_txbuf_free_skb(struct ath5k_softc *sc, struct ath5k_buf *bf);
+void ath5k_rxbuf_free_skb(struct ath5k_softc *sc, struct ath5k_buf *bf);
+
 /*Chip id helper functions */
 const char *ath5k_chip_name(enum ath5k_srev_type type, u_int16_t val);
 int ath5k_hw_read_srev(struct ath5k_hw *ah);

drivers/net/wireless/ath/ath5k/attach.c

@@ -220,7 +220,8 @@ int ath5k_hw_init(struct ath5k_softc *sc)
 			ah->ah_radio = AR5K_RF5112;
 			ah->ah_single_chip = false;
 			ah->ah_radio_5ghz_revision = AR5K_SREV_RAD_5112B;
-		} else if (ah->ah_mac_version == (AR5K_SREV_AR2415 >> 4)) {
+		} else if (ah->ah_mac_version == (AR5K_SREV_AR2415 >> 4) ||
+			ah->ah_mac_version == (AR5K_SREV_AR2315_R6 >> 4)) {
 			ah->ah_radio = AR5K_RF2316;
 			ah->ah_single_chip = true;
 			ah->ah_radio_5ghz_revision = AR5K_SREV_RAD_2316;

drivers/net/wireless/ath/ath5k/mac80211-ops.c

@@ -48,23 +48,6 @@
 
 extern int ath5k_modparam_nohwcrypt;
 
-/* functions used from base.c */
-void set_beacon_filter(struct ieee80211_hw *hw, bool enable);
-bool ath_any_vif_assoc(struct ath5k_softc *sc);
-int ath5k_tx_queue(struct ieee80211_hw *hw, struct sk_buff *skb,
-		   struct ath5k_txq *txq);
-int ath5k_init_hw(struct ath5k_softc *sc);
-int ath5k_stop_hw(struct ath5k_softc *sc);
-void ath5k_mode_setup(struct ath5k_softc *sc, struct ieee80211_vif *vif);
-void ath5k_update_bssid_mask_and_opmode(struct ath5k_softc *sc,
-					struct ieee80211_vif *vif);
-int ath5k_chan_set(struct ath5k_softc *sc, struct ieee80211_channel *chan);
-void ath5k_beacon_update_timers(struct ath5k_softc *sc, u64 bc_tsf);
-int ath5k_beacon_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
-void ath5k_beacon_config(struct ath5k_softc *sc);
-void ath5k_txbuf_free_skb(struct ath5k_softc *sc, struct ath5k_buf *bf);
-void ath5k_rxbuf_free_skb(struct ath5k_softc *sc, struct ath5k_buf *bf);
-
 /********************\
 * Mac80211 functions *
 \********************/

drivers/net/wireless/ath/ath5k/phy.c

@@ -1281,6 +1281,7 @@ static int ath5k_hw_channel(struct ath5k_hw *ah,
 	case AR5K_RF5111:
 		ret = ath5k_hw_rf5111_channel(ah, channel);
 		break;
+	case AR5K_RF2317:
 	case AR5K_RF2425:
 		ret = ath5k_hw_rf2425_channel(ah, channel);
 		break;

drivers/net/wireless/ath/ath9k/ar9003_hw.c

@@ -28,7 +28,67 @@
  */
 static void ar9003_hw_init_mode_regs(struct ath_hw *ah)
 {
-	if (AR_SREV_9485(ah)) {
+	if (AR_SREV_9485_11(ah)) {
+		/* mac */
+		INIT_INI_ARRAY(&ah->iniMac[ATH_INI_PRE], NULL, 0, 0);
+		INIT_INI_ARRAY(&ah->iniMac[ATH_INI_CORE],
+				ar9485_1_1_mac_core,
+				ARRAY_SIZE(ar9485_1_1_mac_core), 2);
+		INIT_INI_ARRAY(&ah->iniMac[ATH_INI_POST],
+				ar9485_1_1_mac_postamble,
+				ARRAY_SIZE(ar9485_1_1_mac_postamble), 5);
+
+		/* bb */
+		INIT_INI_ARRAY(&ah->iniBB[ATH_INI_PRE], ar9485_1_1,
+				ARRAY_SIZE(ar9485_1_1), 2);
+		INIT_INI_ARRAY(&ah->iniBB[ATH_INI_CORE],
+				ar9485_1_1_baseband_core,
+				ARRAY_SIZE(ar9485_1_1_baseband_core), 2);
+		INIT_INI_ARRAY(&ah->iniBB[ATH_INI_POST],
+				ar9485_1_1_baseband_postamble,
+				ARRAY_SIZE(ar9485_1_1_baseband_postamble), 5);
+
+		/* radio */
+		INIT_INI_ARRAY(&ah->iniRadio[ATH_INI_PRE], NULL, 0, 0);
+		INIT_INI_ARRAY(&ah->iniRadio[ATH_INI_CORE],
+				ar9485_1_1_radio_core,
+				ARRAY_SIZE(ar9485_1_1_radio_core), 2);
+		INIT_INI_ARRAY(&ah->iniRadio[ATH_INI_POST],
+				ar9485_1_1_radio_postamble,
+				ARRAY_SIZE(ar9485_1_1_radio_postamble), 2);
+
+		/* soc */
+		INIT_INI_ARRAY(&ah->iniSOC[ATH_INI_PRE],
+				ar9485_1_1_soc_preamble,
+				ARRAY_SIZE(ar9485_1_1_soc_preamble), 2);
+		INIT_INI_ARRAY(&ah->iniSOC[ATH_INI_CORE], NULL, 0, 0);
+		INIT_INI_ARRAY(&ah->iniSOC[ATH_INI_POST], NULL, 0, 0);
+
+		/* rx/tx gain */
+		INIT_INI_ARRAY(&ah->iniModesRxGain,
+				ar9485_common_rx_gain_1_1,
+				ARRAY_SIZE(ar9485_common_rx_gain_1_1), 2);
+		INIT_INI_ARRAY(&ah->iniModesTxGain,
+				ar9485_modes_lowest_ob_db_tx_gain_1_1,
+				ARRAY_SIZE(ar9485_modes_lowest_ob_db_tx_gain_1_1),
+				5);
+
+		/* Load PCIE SERDES settings from INI */
+
+		/* Awake Setting */
+
+		INIT_INI_ARRAY(&ah->iniPcieSerdes,
+				ar9485_1_1_pcie_phy_pll_on_clkreq_disable_L1,
+				ARRAY_SIZE(ar9485_1_1_pcie_phy_pll_on_clkreq_disable_L1),
+				2);
+
+		/* Sleep Setting */
+
+		INIT_INI_ARRAY(&ah->iniPcieSerdesLowPower,
+				ar9485_1_1_pcie_phy_pll_on_clkreq_disable_L1,
+				ARRAY_SIZE(ar9485_1_1_pcie_phy_pll_on_clkreq_disable_L1),
+				2);
+	} else if (AR_SREV_9485(ah)) {
 		/* mac */
 		INIT_INI_ARRAY(&ah->iniMac[ATH_INI_PRE], NULL, 0, 0);
 		INIT_INI_ARRAY(&ah->iniMac[ATH_INI_CORE],
@@ -85,8 +145,8 @@ static void ar9003_hw_init_mode_regs(struct ath_hw *ah)
 		/* Sleep Setting */
 
 		INIT_INI_ARRAY(&ah->iniPcieSerdesLowPower,
-				ar9485_1_0_pcie_phy_pll_on_clkreq_enable_L1,
-				ARRAY_SIZE(ar9485_1_0_pcie_phy_pll_on_clkreq_enable_L1),
+				ar9485_1_0_pcie_phy_pll_on_clkreq_disable_L1,
+				ARRAY_SIZE(ar9485_1_0_pcie_phy_pll_on_clkreq_disable_L1),
 				2);
 	} else {
 		/* mac */
@@ -163,7 +223,12 @@ static void ar9003_tx_gain_table_apply(struct ath_hw *ah)
 	switch (ar9003_hw_get_tx_gain_idx(ah)) {
 	case 0:
 	default:
-		if (AR_SREV_9485(ah))
+		if (AR_SREV_9485_11(ah))
+			INIT_INI_ARRAY(&ah->iniModesTxGain,
+				       ar9485_modes_lowest_ob_db_tx_gain_1_1,
+				       ARRAY_SIZE(ar9485_modes_lowest_ob_db_tx_gain_1_1),
+				       5);
+		else if (AR_SREV_9485(ah))
 			INIT_INI_ARRAY(&ah->iniModesTxGain,
 				       ar9485Modes_lowest_ob_db_tx_gain_1_0,
 				       ARRAY_SIZE(ar9485Modes_lowest_ob_db_tx_gain_1_0),
@@ -175,10 +240,15 @@ static void ar9003_tx_gain_table_apply(struct ath_hw *ah)
 				       5);
 		break;
 	case 1:
-		if (AR_SREV_9485(ah))
+		if (AR_SREV_9485_11(ah))
+			INIT_INI_ARRAY(&ah->iniModesTxGain,
+				       ar9485Modes_high_ob_db_tx_gain_1_1,
+				       ARRAY_SIZE(ar9485Modes_high_ob_db_tx_gain_1_1),
+				       5);
+		else if (AR_SREV_9485(ah))
 			INIT_INI_ARRAY(&ah->iniModesTxGain,
 				       ar9485Modes_high_ob_db_tx_gain_1_0,
-				       ARRAY_SIZE(ar9485Modes_lowest_ob_db_tx_gain_1_0),
+				       ARRAY_SIZE(ar9485Modes_high_ob_db_tx_gain_1_0),
 				       5);
 		else
 			INIT_INI_ARRAY(&ah->iniModesTxGain,
@@ -187,10 +257,15 @@ static void ar9003_tx_gain_table_apply(struct ath_hw *ah)
 				       5);
 		break;
 	case 2:
-		if (AR_SREV_9485(ah))
+		if (AR_SREV_9485_11(ah))
+			INIT_INI_ARRAY(&ah->iniModesTxGain,
+				       ar9485Modes_low_ob_db_tx_gain_1_1,
+				       ARRAY_SIZE(ar9485Modes_low_ob_db_tx_gain_1_1),
+				       5);
+		else if (AR_SREV_9485(ah))
 			INIT_INI_ARRAY(&ah->iniModesTxGain,
 				       ar9485Modes_low_ob_db_tx_gain_1_0,
-				       ARRAY_SIZE(ar9485Modes_lowest_ob_db_tx_gain_1_0),
+				       ARRAY_SIZE(ar9485Modes_low_ob_db_tx_gain_1_0),
 				       5);
 		else
 			INIT_INI_ARRAY(&ah->iniModesTxGain,
@@ -199,7 +274,12 @@ static void ar9003_tx_gain_table_apply(struct ath_hw *ah)
 				       5);
 		break;
 	case 3:
-		if (AR_SREV_9485(ah))
+		if (AR_SREV_9485_11(ah))
+			INIT_INI_ARRAY(&ah->iniModesTxGain,
+				       ar9485Modes_high_power_tx_gain_1_1,
+				       ARRAY_SIZE(ar9485Modes_high_power_tx_gain_1_1),
+				       5);
+		else if (AR_SREV_9485(ah))
 			INIT_INI_ARRAY(&ah->iniModesTxGain,
 				       ar9485Modes_high_power_tx_gain_1_0,
 				       ARRAY_SIZE(ar9485Modes_high_power_tx_gain_1_0),
@@ -218,7 +298,12 @@ static void ar9003_rx_gain_table_apply(struct ath_hw *ah)
 	switch (ar9003_hw_get_rx_gain_idx(ah)) {
 	case 0:
 	default:
-		if (AR_SREV_9485(ah))
+		if (AR_SREV_9485_11(ah))
+			INIT_INI_ARRAY(&ah->iniModesRxGain,
+				       ar9485_common_rx_gain_1_1,
+				       ARRAY_SIZE(ar9485_common_rx_gain_1_1),
+				       2);
+		else if (AR_SREV_9485(ah))
 			INIT_INI_ARRAY(&ah->iniModesRxGain,
 				       ar9485Common_rx_gain_1_0,
 				       ARRAY_SIZE(ar9485Common_rx_gain_1_0),
@@ -230,7 +315,12 @@ static void ar9003_rx_gain_table_apply(struct ath_hw *ah)
 				       2);
 		break;
 	case 1:
-		if (AR_SREV_9485(ah))
+		if (AR_SREV_9485_11(ah))
+			INIT_INI_ARRAY(&ah->iniModesRxGain,
+				       ar9485Common_wo_xlna_rx_gain_1_1,
+				       ARRAY_SIZE(ar9485Common_wo_xlna_rx_gain_1_1),
+				       2);
+		else if (AR_SREV_9485(ah))
 			INIT_INI_ARRAY(&ah->iniModesRxGain,
 				       ar9485Common_wo_xlna_rx_gain_1_0,
 				       ARRAY_SIZE(ar9485Common_wo_xlna_rx_gain_1_0),

drivers/net/wireless/ath/ath9k/ath9k.h

@@ -21,7 +21,6 @@
 #include <linux/device.h>
 #include <linux/leds.h>
 #include <linux/completion.h>
-#include <linux/pm_qos_params.h>
 
 #include "debug.h"
 #include "common.h"
@@ -57,8 +56,6 @@ struct ath_node;
 
 #define A_MAX(a, b) ((a) > (b) ? (a) : (b))
 
-#define ATH9K_PM_QOS_DEFAULT_VALUE	55
-
 #define TSF_TO_TU(_h,_l) \
 	((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
 
@@ -192,6 +189,7 @@ struct ath_txq {
 	u32 axq_ampdu_depth;
 	bool stopped;
 	bool axq_tx_inprogress;
+	bool txq_flush_inprogress;
 	struct list_head axq_acq;
 	struct list_head txq_fifo[ATH_TXFIFO_DEPTH];
 	struct list_head txq_fifo_pending;
@@ -349,6 +347,7 @@ void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid
 
 struct ath_vif {
 	int av_bslot;
+	bool is_bslot_active;
 	__le64 tsf_adjust; /* TSF adjustment for staggered beacons */
 	enum nl80211_iftype av_opmode;
 	struct ath_buf *av_bcbuf;
@@ -371,7 +370,7 @@ struct ath_vif {
 #define IEEE80211_MS_TO_TU(x)           (((x) * 1000) / 1024)
 
 struct ath_beacon_config {
-	u16 beacon_interval;
+	int beacon_interval;
 	u16 listen_interval;
 	u16 dtim_period;
 	u16 bmiss_timeout;
@@ -403,6 +402,7 @@ void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif);
 int ath_beacon_alloc(struct ath_softc *sc, struct ieee80211_vif *vif);
 void ath_beacon_return(struct ath_softc *sc, struct ath_vif *avp);
 int ath_beaconq_config(struct ath_softc *sc);
+void ath9k_set_beaconing_status(struct ath_softc *sc, bool status);
 
 /*******/
 /* ANI */
@@ -633,8 +633,6 @@ struct ath_softc {
 	struct ath9k_hw_cal_data caldata;
 	int last_rssi;
 
-	int beacon_interval;
-
 #ifdef CONFIG_ATH9K_DEBUGFS
 	struct ath9k_debug debug;
 	spinlock_t nodes_lock;
@@ -649,8 +647,6 @@ struct ath_softc {
 	struct ath_descdma txsdma;
 
 	struct ath_ant_comb ant_comb;
-
-	struct pm_qos_request_list pm_qos_req;
 };
 
 void ath9k_tasklet(unsigned long data);
@@ -665,7 +661,6 @@ static inline void ath_read_cachesize(struct ath_common *common, int *csz)
 extern struct ieee80211_ops ath9k_ops;
 extern int ath9k_modparam_nohwcrypt;
 extern int led_blink;
-extern int ath9k_pm_qos_value;
 extern bool is_ath9k_unloaded;
 
 irqreturn_t ath_isr(int irq, void *dev);

drivers/net/wireless/ath/ath9k/beacon.c

@@ -143,7 +143,7 @@ static struct ath_buf *ath_beacon_generate(struct ieee80211_hw *hw,
 	avp = (void *)vif->drv_priv;
 	cabq = sc->beacon.cabq;
 
-	if (avp->av_bcbuf == NULL)
+	if ((avp->av_bcbuf == NULL) || !avp->is_bslot_active)
 		return NULL;
 
 	/* Release the old beacon first */
@@ -226,6 +226,7 @@ int ath_beacon_alloc(struct ath_softc *sc, struct ieee80211_vif *vif)
 	struct ath_vif *avp;
 	struct ath_buf *bf;
 	struct sk_buff *skb;
+	struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
 	__le64 tstamp;
 
 	avp = (void *)vif->drv_priv;
@@ -248,6 +249,7 @@ int ath_beacon_alloc(struct ath_softc *sc, struct ieee80211_vif *vif)
 			for (slot = 0; slot < ATH_BCBUF; slot++)
 				if (sc->beacon.bslot[slot] == NULL) {
 					avp->av_bslot = slot;
+					avp->is_bslot_active = false;
 
 					/* NB: keep looking for a double slot */
 					if (slot == 0 || !sc->beacon.bslot[slot-1])
@@ -282,7 +284,7 @@ int ath_beacon_alloc(struct ath_softc *sc, struct ieee80211_vif *vif)
 		u64 tsfadjust;
 		int intval;
 
-		intval = sc->beacon_interval ? : ATH_DEFAULT_BINTVAL;
+		intval = cur_conf->beacon_interval ? : ATH_DEFAULT_BINTVAL;
 
 		/*
 		 * Calculate the TSF offset for this beacon slot, i.e., the
@@ -314,6 +316,7 @@ int ath_beacon_alloc(struct ath_softc *sc, struct ieee80211_vif *vif)
 		ath_err(common, "dma_mapping_error on beacon alloc\n");
 		return -ENOMEM;
 	}
+	avp->is_bslot_active = true;
 
 	return 0;
 }
@@ -346,6 +349,7 @@ void ath_beacon_return(struct ath_softc *sc, struct ath_vif *avp)
 void ath_beacon_tasklet(unsigned long data)
 {
 	struct ath_softc *sc = (struct ath_softc *)data;
+	struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ath_buf *bf = NULL;
@@ -393,7 +397,7 @@ void ath_beacon_tasklet(unsigned long data)
 	 * on the tsf to safeguard against missing an swba.
 	 */
 
-	intval = sc->beacon_interval ? : ATH_DEFAULT_BINTVAL;
+	intval = cur_conf->beacon_interval ? : ATH_DEFAULT_BINTVAL;
 
 	tsf = ath9k_hw_gettsf64(ah);
 	tsftu = TSF_TO_TU(tsf>>32, tsf);
@@ -747,3 +751,36 @@ void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif)
 
 	sc->sc_flags |= SC_OP_BEACONS;
 }
+
+void ath9k_set_beaconing_status(struct ath_softc *sc, bool status)
+{
+	struct ath_hw *ah = sc->sc_ah;
+	struct ath_vif *avp;
+	int slot;
+	bool found = false;
+
+	ath9k_ps_wakeup(sc);
+	if (status) {
+		for (slot = 0; slot < ATH_BCBUF; slot++) {
+			if (sc->beacon.bslot[slot]) {
+				avp = (void *)sc->beacon.bslot[slot]->drv_priv;
+				if (avp->is_bslot_active) {
+					found = true;
+					break;
+				}
+			}
+		}
+		if (found) {
+			/* Re-enable beaconing */
+			ah->imask |= ATH9K_INT_SWBA;
+			ath9k_hw_set_interrupts(ah, ah->imask);
+		}
+	} else {
+		/* Disable SWBA interrupt */
+		ah->imask &= ~ATH9K_INT_SWBA;
+		ath9k_hw_set_interrupts(ah, ah->imask);
+		tasklet_kill(&sc->bcon_tasklet);
+		ath9k_hw_stoptxdma(ah, sc->beacon.beaconq);
+	}
+	ath9k_ps_restore(sc);
+}

drivers/net/wireless/ath/ath9k/htc_drv_main.c

@@ -169,7 +169,7 @@ static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
 	struct ieee80211_conf *conf = &common->hw->conf;
 	bool fastcc;
 	struct ieee80211_channel *channel = hw->conf.channel;
-	struct ath9k_hw_cal_data *caldata;
+	struct ath9k_hw_cal_data *caldata = NULL;
 	enum htc_phymode mode;
 	__be16 htc_mode;
 	u8 cmd_rsp;

drivers/net/wireless/ath/ath9k/hw.c

@@ -1100,7 +1100,6 @@ static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
 		REG_WRITE(ah, AR_RC, AR_RC_AHB);
 
 	REG_WRITE(ah, AR_RTC_RESET, 0);
-	udelay(2);
 
 	REGWRITE_BUFFER_FLUSH(ah);
 

drivers/net/wireless/ath/ath9k/init.c

@@ -41,10 +41,6 @@ static int ath9k_btcoex_enable;
 module_param_named(btcoex_enable, ath9k_btcoex_enable, int, 0444);
 MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence");
 
-int ath9k_pm_qos_value = ATH9K_PM_QOS_DEFAULT_VALUE;
-module_param_named(pmqos, ath9k_pm_qos_value, int, S_IRUSR | S_IRGRP | S_IROTH);
-MODULE_PARM_DESC(pmqos, "User specified PM-QOS value");
-
 bool is_ath9k_unloaded;
 /* We use the hw_value as an index into our private channel structure */
 
@@ -760,9 +756,6 @@ int ath9k_init_device(u16 devid, struct ath_softc *sc, u16 subsysid,
 	ath_init_leds(sc);
 	ath_start_rfkill_poll(sc);
 
-	pm_qos_add_request(&sc->pm_qos_req, PM_QOS_CPU_DMA_LATENCY,
-			   PM_QOS_DEFAULT_VALUE);
-
 	return 0;
 
 error_world:
@@ -819,7 +812,6 @@ void ath9k_deinit_device(struct ath_softc *sc)
 	ath9k_ps_restore(sc);
 
 	ieee80211_unregister_hw(hw);
-	pm_qos_remove_request(&sc->pm_qos_req);
 	ath_rx_cleanup(sc);
 	ath_tx_cleanup(sc);
 	ath9k_deinit_softc(sc);

drivers/net/wireless/ath/ath9k/main.c

@@ -15,6 +15,7 @@
  */
 
 #include <linux/nl80211.h>
+#include <linux/delay.h>
 #include "ath9k.h"
 #include "btcoex.h"
 
@@ -53,6 +54,21 @@ static u8 parse_mpdudensity(u8 mpdudensity)
 	}
 }
 
+static bool ath9k_has_pending_frames(struct ath_softc *sc, struct ath_txq *txq)
+{
+	bool pending = false;
+
+	spin_lock_bh(&txq->axq_lock);
+
+	if (txq->axq_depth || !list_empty(&txq->axq_acq))
+		pending = true;
+	else if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
+		pending = !list_empty(&txq->txq_fifo_pending);
+
+	spin_unlock_bh(&txq->axq_lock);
+	return pending;
+}
+
 bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode)
 {
 	unsigned long flags;
@@ -1117,12 +1133,6 @@ static int ath9k_start(struct ieee80211_hw *hw)
 			ath9k_btcoex_timer_resume(sc);
 	}
 
-	/* User has the option to provide pm-qos value as a module
-	 * parameter rather than using the default value of
-	 * 'ATH9K_PM_QOS_DEFAULT_VALUE'.
-	 */
-	pm_qos_update_request(&sc->pm_qos_req, ath9k_pm_qos_value);
-
 	if (ah->caps.pcie_lcr_extsync_en && common->bus_ops->extn_synch_en)
 		common->bus_ops->extn_synch_en(common);
 
@@ -1267,8 +1277,6 @@ static void ath9k_stop(struct ieee80211_hw *hw)
 
 	sc->sc_flags |= SC_OP_INVALID;
 
-	pm_qos_update_request(&sc->pm_qos_req, PM_QOS_DEFAULT_VALUE);
-
 	mutex_unlock(&sc->mutex);
 
 	ath_dbg(common, ATH_DBG_CONFIG, "Driver halt\n");
@@ -1291,24 +1299,10 @@ static void ath9k_reclaim_beacon(struct ath_softc *sc,
 {
 	struct ath_vif *avp = (void *)vif->drv_priv;
 
-	/* Disable SWBA interrupt */
-	sc->sc_ah->imask &= ~ATH9K_INT_SWBA;
-	ath9k_ps_wakeup(sc);
-	ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_ah->imask);
-	ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq);
-	tasklet_kill(&sc->bcon_tasklet);
-	ath9k_ps_restore(sc);
-
+	ath9k_set_beaconing_status(sc, false);
 	ath_beacon_return(sc, avp);
+	ath9k_set_beaconing_status(sc, true);
 	sc->sc_flags &= ~SC_OP_BEACONS;
-
-	if (sc->nbcnvifs > 0) {
-		/* Re-enable beaconing */
-		sc->sc_ah->imask |= ATH9K_INT_SWBA;
-		ath9k_ps_wakeup(sc);
-		ath9k_hw_set_interrupts(sc->sc_ah, sc->sc_ah->imask);
-		ath9k_ps_restore(sc);
-	}
 }
 
 static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
@@ -1436,16 +1430,17 @@ static void ath9k_do_vif_add_setup(struct ieee80211_hw *hw,
 
 	if (ath9k_uses_beacons(vif->type)) {
 		int error;
-		ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq);
 		/* This may fail because upper levels do not have beacons
 		 * properly configured yet.  That's OK, we assume it
 		 * will be properly configured and then we will be notified
 		 * in the info_changed method and set up beacons properly
 		 * there.
 		 */
+		ath9k_set_beaconing_status(sc, false);
 		error = ath_beacon_alloc(sc, vif);
 		if (!error)
 			ath_beacon_config(sc, vif);
+		ath9k_set_beaconing_status(sc, true);
 	}
 }
 
@@ -1676,8 +1671,9 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 		else
 			sc->sc_flags &= ~SC_OP_OFFCHANNEL;
 
-		ath_dbg(common, ATH_DBG_CONFIG, "Set channel: %d MHz\n",
-			curchan->center_freq);
+		ath_dbg(common, ATH_DBG_CONFIG,
+			"Set channel: %d MHz type: %d\n",
+			curchan->center_freq, conf->channel_type);
 
 		ath9k_cmn_update_ichannel(&sc->sc_ah->channels[pos],
 					  curchan, conf->channel_type);
@@ -1723,6 +1719,8 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 	}
 
 	if (changed & IEEE80211_CONF_CHANGE_POWER) {
+		ath_dbg(common, ATH_DBG_CONFIG,
+			"Set power: %d\n", conf->power_level);
 		sc->config.txpowlimit = 2 * conf->power_level;
 		ath9k_ps_wakeup(sc);
 		ath9k_cmn_update_txpow(ah, sc->curtxpow,
@@ -1886,6 +1884,7 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
 				   u32 changed)
 {
 	struct ath_softc *sc = hw->priv;
+	struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ath_vif *avp = (void *)vif->drv_priv;
@@ -1914,10 +1913,11 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
 	/* Enable transmission of beacons (AP, IBSS, MESH) */
 	if ((changed & BSS_CHANGED_BEACON) ||
 	    ((changed & BSS_CHANGED_BEACON_ENABLED) && bss_conf->enable_beacon)) {
-		ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq);
+		ath9k_set_beaconing_status(sc, false);
 		error = ath_beacon_alloc(sc, vif);
 		if (!error)
 			ath_beacon_config(sc, vif);
+		ath9k_set_beaconing_status(sc, true);
 	}
 
 	if (changed & BSS_CHANGED_ERP_SLOT) {
@@ -1940,21 +1940,26 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
 	}
 
 	/* Disable transmission of beacons */
-	if ((changed & BSS_CHANGED_BEACON_ENABLED) && !bss_conf->enable_beacon)
-		ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq);
+	if ((changed & BSS_CHANGED_BEACON_ENABLED) &&
+	    !bss_conf->enable_beacon) {
+		ath9k_set_beaconing_status(sc, false);
+		avp->is_bslot_active = false;
+		ath9k_set_beaconing_status(sc, true);
+	}
 
 	if (changed & BSS_CHANGED_BEACON_INT) {
-		sc->beacon_interval = bss_conf->beacon_int;
+		cur_conf->beacon_interval = bss_conf->beacon_int;
 		/*
 		 * In case of AP mode, the HW TSF has to be reset
 		 * when the beacon interval changes.
 		 */
 		if (vif->type == NL80211_IFTYPE_AP) {
 			sc->sc_flags |= SC_OP_TSF_RESET;
-			ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq);
+			ath9k_set_beaconing_status(sc, false);
 			error = ath_beacon_alloc(sc, vif);
 			if (!error)
 				ath_beacon_config(sc, vif);
+			ath9k_set_beaconing_status(sc, true);
 		} else {
 			ath_beacon_config(sc, vif);
 		}
@@ -2122,6 +2127,60 @@ static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
 	mutex_unlock(&sc->mutex);
 }
 
+static void ath9k_flush(struct ieee80211_hw *hw, bool drop)
+{
+#define ATH_FLUSH_TIMEOUT	60 /* ms */
+	struct ath_softc *sc = hw->priv;
+	struct ath_txq *txq;
+	struct ath_hw *ah = sc->sc_ah;
+	struct ath_common *common = ath9k_hw_common(ah);
+	int i, j, npend = 0;
+
+	mutex_lock(&sc->mutex);
+
+	cancel_delayed_work_sync(&sc->tx_complete_work);
+
+	for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
+		if (!ATH_TXQ_SETUP(sc, i))
+			continue;
+		txq = &sc->tx.txq[i];
+
+		if (!drop) {
+			for (j = 0; j < ATH_FLUSH_TIMEOUT; j++) {
+				if (!ath9k_has_pending_frames(sc, txq))
+					break;
+				usleep_range(1000, 2000);
+			}
+		}
+
+		if (drop || ath9k_has_pending_frames(sc, txq)) {
+			ath_dbg(common, ATH_DBG_QUEUE, "Drop frames from hw queue:%d\n",
+				txq->axq_qnum);
+			spin_lock_bh(&txq->axq_lock);
+			txq->txq_flush_inprogress = true;
+			spin_unlock_bh(&txq->axq_lock);
+
+			ath9k_ps_wakeup(sc);
+			ath9k_hw_stoptxdma(ah, txq->axq_qnum);
+			npend = ath9k_hw_numtxpending(ah, txq->axq_qnum);
+			ath9k_ps_restore(sc);
+			if (npend)
+				break;
+
+			ath_draintxq(sc, txq, false);
+			txq->txq_flush_inprogress = false;
+		}
+	}
+
+	if (npend) {
+		ath_reset(sc, false);
+		txq->txq_flush_inprogress = false;
+	}
+
+	ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0);
+	mutex_unlock(&sc->mutex);
+}
+
 struct ieee80211_ops ath9k_ops = {
 	.tx 		    = ath9k_tx,
 	.start 		    = ath9k_start,
@@ -2143,4 +2202,5 @@ struct ieee80211_ops ath9k_ops = {
 	.get_survey	    = ath9k_get_survey,
 	.rfkill_poll        = ath9k_rfkill_poll_state,
 	.set_coverage_class = ath9k_set_coverage_class,
+	.flush		    = ath9k_flush,
 };

drivers/net/wireless/ath/ath9k/reg.h

@@ -789,6 +789,7 @@
 #define AR_SREV_REVISION_9300_20	2 /* 2.0 and 2.1 */
 #define AR_SREV_VERSION_9485		0x240
 #define AR_SREV_REVISION_9485_10	0
+#define AR_SREV_REVISION_9485_11        1
 
 #define AR_SREV_5416(_ah) \
 	(((_ah)->hw_version.macVersion == AR_SREV_VERSION_5416_PCI) || \
@@ -866,6 +867,9 @@
 #define AR_SREV_9485_10(_ah) \
 	(AR_SREV_9485(_ah) && \
 	 ((_ah)->hw_version.macRev == AR_SREV_REVISION_9485_10))
+#define AR_SREV_9485_11(_ah) \
+	(AR_SREV_9485(_ah) && \
+	 ((_ah)->hw_version.macRev == AR_SREV_REVISION_9485_11))
 
 #define AR_SREV_9285E_20(_ah) \
     (AR_SREV_9285_12_OR_LATER(_ah) && \

drivers/net/wireless/ath/ath9k/xmit.c

@@ -1055,6 +1055,7 @@ int ath_txq_update(struct ath_softc *sc, int qnum,
 int ath_cabq_update(struct ath_softc *sc)
 {
 	struct ath9k_tx_queue_info qi;
+	struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
 	int qnum = sc->beacon.cabq->axq_qnum;
 
 	ath9k_hw_get_txq_props(sc->sc_ah, qnum, &qi);
@@ -1066,7 +1067,7 @@ int ath_cabq_update(struct ath_softc *sc)
 	else if (sc->config.cabqReadytime > ATH9K_READY_TIME_HI_BOUND)
 		sc->config.cabqReadytime = ATH9K_READY_TIME_HI_BOUND;
 
-	qi.tqi_readyTime = (sc->beacon_interval *
+	qi.tqi_readyTime = (cur_conf->beacon_interval *
 			    sc->config.cabqReadytime) / 100;
 	ath_txq_update(sc, qnum, &qi);
 
@@ -2013,7 +2014,8 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
 		spin_lock_bh(&txq->axq_lock);
 		if (list_empty(&txq->axq_q)) {
 			txq->axq_link = NULL;
-			if (sc->sc_flags & SC_OP_TXAGGR)
+			if (sc->sc_flags & SC_OP_TXAGGR &&
+			    !txq->txq_flush_inprogress)
 				ath_txq_schedule(sc, txq);
 			spin_unlock_bh(&txq->axq_lock);
 			break;
@@ -2070,6 +2072,7 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
 
 		if (bf_is_ampdu_not_probing(bf))
 			txq->axq_ampdu_depth--;
+
 		spin_unlock_bh(&txq->axq_lock);
 
 		if (bf_held)
@@ -2093,7 +2096,7 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
 
 		spin_lock_bh(&txq->axq_lock);
 
-		if (sc->sc_flags & SC_OP_TXAGGR)
+		if (sc->sc_flags & SC_OP_TXAGGR && !txq->txq_flush_inprogress)
 			ath_txq_schedule(sc, txq);
 		spin_unlock_bh(&txq->axq_lock);
 	}
@@ -2264,15 +2267,18 @@ void ath_tx_edma_tasklet(struct ath_softc *sc)
 
 		spin_lock_bh(&txq->axq_lock);
 
-		if (!list_empty(&txq->txq_fifo_pending)) {
-			INIT_LIST_HEAD(&bf_head);
-			bf = list_first_entry(&txq->txq_fifo_pending,
-				struct ath_buf, list);
-			list_cut_position(&bf_head, &txq->txq_fifo_pending,
-				&bf->bf_lastbf->list);
-			ath_tx_txqaddbuf(sc, txq, &bf_head);
-		} else if (sc->sc_flags & SC_OP_TXAGGR)
-			ath_txq_schedule(sc, txq);
+		if (!txq->txq_flush_inprogress) {
+			if (!list_empty(&txq->txq_fifo_pending)) {
+				INIT_LIST_HEAD(&bf_head);
+				bf = list_first_entry(&txq->txq_fifo_pending,
+						      struct ath_buf, list);
+				list_cut_position(&bf_head,
+						  &txq->txq_fifo_pending,
+						  &bf->bf_lastbf->list);
+				ath_tx_txqaddbuf(sc, txq, &bf_head);
+			} else if (sc->sc_flags & SC_OP_TXAGGR)
+				ath_txq_schedule(sc, txq);
+		}
 		spin_unlock_bh(&txq->axq_lock);
 	}
 }