Linux-libre 4.4-gnupck-4.4-gnu

1 files changed, 0 insertions, 1188 deletions

diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c
deleted file mode 100644
index 2721cf89f..000000000
--- a/drivers/net/wireless/rtlwifi/usb.c
+++ /dev/null
@@ -1,1188 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2009-2012  Realtek Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * wlanfae <wlanfae@realtek.com>
- * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
- * Hsinchu 300, Taiwan.
- *
- *****************************************************************************/
-
-#include "wifi.h"
-#include "core.h"
-#include "usb.h"
-#include "base.h"
-#include "ps.h"
-#include "rtl8192c/fw_common.h"
-#include <linux/export.h>
-#include <linux/module.h>
-
-MODULE_AUTHOR("lizhaoming	<chaoming_li@realsil.com.cn>");
-MODULE_AUTHOR("Realtek WlanFAE	<wlanfae@realtek.com>");
-MODULE_AUTHOR("Larry Finger	<Larry.FInger@lwfinger.net>");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("USB basic driver for rtlwifi");
-
-#define	REALTEK_USB_VENQT_READ			0xC0
-#define	REALTEK_USB_VENQT_WRITE			0x40
-#define REALTEK_USB_VENQT_CMD_REQ		0x05
-#define	REALTEK_USB_VENQT_CMD_IDX		0x00
-
-#define MAX_USBCTRL_VENDORREQ_TIMES		10
-
-static void usbctrl_async_callback(struct urb *urb)
-{
-	if (urb) {
-		/* free dr */
-		kfree(urb->setup_packet);
-		/* free databuf */
-		kfree(urb->transfer_buffer);
-	}
-}
-
-static int _usbctrl_vendorreq_async_write(struct usb_device *udev, u8 request,
-					  u16 value, u16 index, void *pdata,
-					  u16 len)
-{
-	int rc;
-	unsigned int pipe;
-	u8 reqtype;
-	struct usb_ctrlrequest *dr;
-	struct urb *urb;
-	const u16 databuf_maxlen = REALTEK_USB_VENQT_MAX_BUF_SIZE;
-	u8 *databuf;
-
-	if (WARN_ON_ONCE(len > databuf_maxlen))
-		len = databuf_maxlen;
-
-	pipe = usb_sndctrlpipe(udev, 0); /* write_out */
-	reqtype =  REALTEK_USB_VENQT_WRITE;
-
-	dr = kzalloc(sizeof(*dr), GFP_ATOMIC);
-	if (!dr)
-		return -ENOMEM;
-
-	databuf = kzalloc(databuf_maxlen, GFP_ATOMIC);
-	if (!databuf) {
-		kfree(dr);
-		return -ENOMEM;
-	}
-
-	urb = usb_alloc_urb(0, GFP_ATOMIC);
-	if (!urb) {
-		kfree(databuf);
-		kfree(dr);
-		return -ENOMEM;
-	}
-
-	dr->bRequestType = reqtype;
-	dr->bRequest = request;
-	dr->wValue = cpu_to_le16(value);
-	dr->wIndex = cpu_to_le16(index);
-	dr->wLength = cpu_to_le16(len);
-	/* data are already in little-endian order */
-	memcpy(databuf, pdata, len);
-	usb_fill_control_urb(urb, udev, pipe,
-			     (unsigned char *)dr, databuf, len,
-			     usbctrl_async_callback, NULL);
-	rc = usb_submit_urb(urb, GFP_ATOMIC);
-	if (rc < 0) {
-		kfree(databuf);
-		kfree(dr);
-	}
-	usb_free_urb(urb);
-	return rc;
-}
-
-static int _usbctrl_vendorreq_sync_read(struct usb_device *udev, u8 request,
-					u16 value, u16 index, void *pdata,
-					u16 len)
-{
-	unsigned int pipe;
-	int status;
-	u8 reqtype;
-	int vendorreq_times = 0;
-	static int count;
-
-	pipe = usb_rcvctrlpipe(udev, 0); /* read_in */
-	reqtype =  REALTEK_USB_VENQT_READ;
-
-	do {
-		status = usb_control_msg(udev, pipe, request, reqtype, value,
-					 index, pdata, len, 1000);
-		if (status < 0) {
-			/* firmware download is checksumed, don't retry */
-			if ((value >= FW_8192C_START_ADDRESS &&
-			    value <= FW_8192C_END_ADDRESS))
-				break;
-		} else {
-			break;
-		}
-	} while (++vendorreq_times < MAX_USBCTRL_VENDORREQ_TIMES);
-
-	if (status < 0 && count++ < 4)
-		pr_err("reg 0x%x, usbctrl_vendorreq TimeOut! status:0x%x value=0x%x\n",
-		       value, status, *(u32 *)pdata);
-	return status;
-}
-
-static u32 _usb_read_sync(struct rtl_priv *rtlpriv, u32 addr, u16 len)
-{
-	struct device *dev = rtlpriv->io.dev;
-	struct usb_device *udev = to_usb_device(dev);
-	u8 request;
-	u16 wvalue;
-	u16 index;
-	__le32 *data;
-	unsigned long flags;
-
-	spin_lock_irqsave(&rtlpriv->locks.usb_lock, flags);
-	if (++rtlpriv->usb_data_index >= RTL_USB_MAX_RX_COUNT)
-		rtlpriv->usb_data_index = 0;
-	data = &rtlpriv->usb_data[rtlpriv->usb_data_index];
-	spin_unlock_irqrestore(&rtlpriv->locks.usb_lock, flags);
-	request = REALTEK_USB_VENQT_CMD_REQ;
-	index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */
-
-	wvalue = (u16)addr;
-	_usbctrl_vendorreq_sync_read(udev, request, wvalue, index, data, len);
-	return le32_to_cpu(*data);
-}
-
-static u8 _usb_read8_sync(struct rtl_priv *rtlpriv, u32 addr)
-{
-	return (u8)_usb_read_sync(rtlpriv, addr, 1);
-}
-
-static u16 _usb_read16_sync(struct rtl_priv *rtlpriv, u32 addr)
-{
-	return (u16)_usb_read_sync(rtlpriv, addr, 2);
-}
-
-static u32 _usb_read32_sync(struct rtl_priv *rtlpriv, u32 addr)
-{
-	return _usb_read_sync(rtlpriv, addr, 4);
-}
-
-static void _usb_write_async(struct usb_device *udev, u32 addr, u32 val,
-			     u16 len)
-{
-	u8 request;
-	u16 wvalue;
-	u16 index;
-	__le32 data;
-
-	request = REALTEK_USB_VENQT_CMD_REQ;
-	index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */
-	wvalue = (u16)(addr&0x0000ffff);
-	data = cpu_to_le32(val);
-	_usbctrl_vendorreq_async_write(udev, request, wvalue, index, &data,
-				       len);
-}
-
-static void _usb_write8_async(struct rtl_priv *rtlpriv, u32 addr, u8 val)
-{
-	struct device *dev = rtlpriv->io.dev;
-
-	_usb_write_async(to_usb_device(dev), addr, val, 1);
-}
-
-static void _usb_write16_async(struct rtl_priv *rtlpriv, u32 addr, u16 val)
-{
-	struct device *dev = rtlpriv->io.dev;
-
-	_usb_write_async(to_usb_device(dev), addr, val, 2);
-}
-
-static void _usb_write32_async(struct rtl_priv *rtlpriv, u32 addr, u32 val)
-{
-	struct device *dev = rtlpriv->io.dev;
-
-	_usb_write_async(to_usb_device(dev), addr, val, 4);
-}
-
-static void _usb_writeN_sync(struct rtl_priv *rtlpriv, u32 addr, void *data,
-			     u16 len)
-{
-	struct device *dev = rtlpriv->io.dev;
-	struct usb_device *udev = to_usb_device(dev);
-	u8 request = REALTEK_USB_VENQT_CMD_REQ;
-	u8 reqtype =  REALTEK_USB_VENQT_WRITE;
-	u16 wvalue;
-	u16 index = REALTEK_USB_VENQT_CMD_IDX;
-	int pipe = usb_sndctrlpipe(udev, 0); /* write_out */
-	u8 *buffer;
-
-	wvalue = (u16)(addr & 0x0000ffff);
-	buffer = kmemdup(data, len, GFP_ATOMIC);
-	if (!buffer)
-		return;
-	usb_control_msg(udev, pipe, request, reqtype, wvalue,
-			index, buffer, len, 50);
-
-	kfree(buffer);
-}
-
-static void _rtl_usb_io_handler_init(struct device *dev,
-				     struct ieee80211_hw *hw)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-
-	rtlpriv->io.dev = dev;
-	mutex_init(&rtlpriv->io.bb_mutex);
-	rtlpriv->io.write8_async	= _usb_write8_async;
-	rtlpriv->io.write16_async	= _usb_write16_async;
-	rtlpriv->io.write32_async	= _usb_write32_async;
-	rtlpriv->io.read8_sync		= _usb_read8_sync;
-	rtlpriv->io.read16_sync		= _usb_read16_sync;
-	rtlpriv->io.read32_sync		= _usb_read32_sync;
-	rtlpriv->io.writeN_sync		= _usb_writeN_sync;
-}
-
-static void _rtl_usb_io_handler_release(struct ieee80211_hw *hw)
-{
-	struct rtl_priv __maybe_unused *rtlpriv = rtl_priv(hw);
-
-	mutex_destroy(&rtlpriv->io.bb_mutex);
-}
-
-/**
- *
- *	Default aggregation handler. Do nothing and just return the oldest skb.
- */
-static struct sk_buff *_none_usb_tx_aggregate_hdl(struct ieee80211_hw *hw,
-						  struct sk_buff_head *list)
-{
-	return skb_dequeue(list);
-}
-
-#define IS_HIGH_SPEED_USB(udev) \
-		((USB_SPEED_HIGH == (udev)->speed) ? true : false)
-
-static int _rtl_usb_init_tx(struct ieee80211_hw *hw)
-{
-	u32 i;
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
-
-	rtlusb->max_bulk_out_size = IS_HIGH_SPEED_USB(rtlusb->udev)
-						    ? USB_HIGH_SPEED_BULK_SIZE
-						    : USB_FULL_SPEED_BULK_SIZE;
-
-	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "USB Max Bulk-out Size=%d\n",
-		 rtlusb->max_bulk_out_size);
-
-	for (i = 0; i < __RTL_TXQ_NUM; i++) {
-		u32 ep_num = rtlusb->ep_map.ep_mapping[i];
-		if (!ep_num) {
-			RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-				 "Invalid endpoint map setting!\n");
-			return -EINVAL;
-		}
-	}
-
-	rtlusb->usb_tx_post_hdl =
-		 rtlpriv->cfg->usb_interface_cfg->usb_tx_post_hdl;
-	rtlusb->usb_tx_cleanup	=
-		 rtlpriv->cfg->usb_interface_cfg->usb_tx_cleanup;
-	rtlusb->usb_tx_aggregate_hdl =
-		 (rtlpriv->cfg->usb_interface_cfg->usb_tx_aggregate_hdl)
-		 ? rtlpriv->cfg->usb_interface_cfg->usb_tx_aggregate_hdl
-		 : &_none_usb_tx_aggregate_hdl;
-
-	init_usb_anchor(&rtlusb->tx_submitted);
-	for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) {
-		skb_queue_head_init(&rtlusb->tx_skb_queue[i]);
-		init_usb_anchor(&rtlusb->tx_pending[i]);
-	}
-	return 0;
-}
-
-static void _rtl_rx_work(unsigned long param);
-
-static int _rtl_usb_init_rx(struct ieee80211_hw *hw)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
-	struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
-
-	rtlusb->rx_max_size = rtlpriv->cfg->usb_interface_cfg->rx_max_size;
-	rtlusb->rx_urb_num = rtlpriv->cfg->usb_interface_cfg->rx_urb_num;
-	rtlusb->in_ep = rtlpriv->cfg->usb_interface_cfg->in_ep_num;
-	rtlusb->usb_rx_hdl = rtlpriv->cfg->usb_interface_cfg->usb_rx_hdl;
-	rtlusb->usb_rx_segregate_hdl =
-		rtlpriv->cfg->usb_interface_cfg->usb_rx_segregate_hdl;
-
-	pr_info("rx_max_size %d, rx_urb_num %d, in_ep %d\n",
-		rtlusb->rx_max_size, rtlusb->rx_urb_num, rtlusb->in_ep);
-	init_usb_anchor(&rtlusb->rx_submitted);
-	init_usb_anchor(&rtlusb->rx_cleanup_urbs);
-
-	skb_queue_head_init(&rtlusb->rx_queue);
-	rtlusb->rx_work_tasklet.func = _rtl_rx_work;
-	rtlusb->rx_work_tasklet.data = (unsigned long)rtlusb;
-
-	return 0;
-}
-
-static int _rtl_usb_init(struct ieee80211_hw *hw)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
-	struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
-	int err;
-	u8 epidx;
-	struct usb_interface	*usb_intf = rtlusb->intf;
-	u8 epnums = usb_intf->cur_altsetting->desc.bNumEndpoints;
-
-	rtlusb->out_ep_nums = rtlusb->in_ep_nums = 0;
-	for (epidx = 0; epidx < epnums; epidx++) {
-		struct usb_endpoint_descriptor *pep_desc;
-		pep_desc = &usb_intf->cur_altsetting->endpoint[epidx].desc;
-
-		if (usb_endpoint_dir_in(pep_desc))
-			rtlusb->in_ep_nums++;
-		else if (usb_endpoint_dir_out(pep_desc))
-			rtlusb->out_ep_nums++;
-
-		RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
-			 "USB EP(0x%02x), MaxPacketSize=%d, Interval=%d\n",
-			 pep_desc->bEndpointAddress, pep_desc->wMaxPacketSize,
-			 pep_desc->bInterval);
-	}
-	if (rtlusb->in_ep_nums <  rtlpriv->cfg->usb_interface_cfg->in_ep_num) {
-		pr_err("Too few input end points found\n");
-		return -EINVAL;
-	}
-	if (rtlusb->out_ep_nums == 0) {
-		pr_err("No output end points found\n");
-		return -EINVAL;
-	}
-	/* usb endpoint mapping */
-	err = rtlpriv->cfg->usb_interface_cfg->usb_endpoint_mapping(hw);
-	rtlusb->usb_mq_to_hwq =  rtlpriv->cfg->usb_interface_cfg->usb_mq_to_hwq;
-	_rtl_usb_init_tx(hw);
-	_rtl_usb_init_rx(hw);
-	return err;
-}
-
-static void rtl_usb_init_sw(struct ieee80211_hw *hw)
-{
-	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
-	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
-	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
-	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
-
-	rtlhal->hw = hw;
-	ppsc->inactiveps = false;
-	ppsc->leisure_ps = false;
-	ppsc->fwctrl_lps = false;
-	ppsc->reg_fwctrl_lps = 3;
-	ppsc->reg_max_lps_awakeintvl = 5;
-	ppsc->fwctrl_psmode = FW_PS_DTIM_MODE;
-
-	 /* IBSS */
-	mac->beacon_interval = 100;
-
-	 /* AMPDU */
-	mac->min_space_cfg = 0;
-	mac->max_mss_density = 0;
-
-	/* set sane AMPDU defaults */
-	mac->current_ampdu_density = 7;
-	mac->current_ampdu_factor = 3;
-
-	/* QOS */
-	rtlusb->acm_method = EACMWAY2_SW;
-
-	/* IRQ */
-	/* HIMR - turn all on */
-	rtlusb->irq_mask[0] = 0xFFFFFFFF;
-	/* HIMR_EX - turn all on */
-	rtlusb->irq_mask[1] = 0xFFFFFFFF;
-	rtlusb->disableHWSM =  true;
-}
-
-static void _rtl_rx_completed(struct urb *urb);
-
-static int _rtl_prep_rx_urb(struct ieee80211_hw *hw, struct rtl_usb *rtlusb,
-			      struct urb *urb, gfp_t gfp_mask)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	void *buf;
-
-	buf = usb_alloc_coherent(rtlusb->udev, rtlusb->rx_max_size, gfp_mask,
-				 &urb->transfer_dma);
-	if (!buf) {
-		RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
-			 "Failed to usb_alloc_coherent!!\n");
-		return -ENOMEM;
-	}
-
-	usb_fill_bulk_urb(urb, rtlusb->udev,
-			  usb_rcvbulkpipe(rtlusb->udev, rtlusb->in_ep),
-			  buf, rtlusb->rx_max_size, _rtl_rx_completed, rtlusb);
-	urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
-
-	return 0;
-}
-
-static void _rtl_usb_rx_process_agg(struct ieee80211_hw *hw,
-				    struct sk_buff *skb)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	u8 *rxdesc = skb->data;
-	struct ieee80211_hdr *hdr;
-	bool unicast = false;
-	__le16 fc;
-	struct ieee80211_rx_status rx_status = {0};
-	struct rtl_stats stats = {
-		.signal = 0,
-		.rate = 0,
-	};
-
-	skb_pull(skb, RTL_RX_DESC_SIZE);
-	rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, rxdesc, skb);
-	skb_pull(skb, (stats.rx_drvinfo_size + stats.rx_bufshift));
-	hdr = (struct ieee80211_hdr *)(skb->data);
-	fc = hdr->frame_control;
-	if (!stats.crc) {
-		memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
-
-		if (is_broadcast_ether_addr(hdr->addr1)) {
-			/*TODO*/;
-		} else if (is_multicast_ether_addr(hdr->addr1)) {
-			/*TODO*/
-		} else {
-			unicast = true;
-			rtlpriv->stats.rxbytesunicast +=  skb->len;
-		}
-
-		if (ieee80211_is_data(fc)) {
-			rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
-
-			if (unicast)
-				rtlpriv->link_info.num_rx_inperiod++;
-		}
-		/* static bcn for roaming */
-		rtl_beacon_statistic(hw, skb);
-	}
-}
-
-static void _rtl_usb_rx_process_noagg(struct ieee80211_hw *hw,
-				      struct sk_buff *skb)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	u8 *rxdesc = skb->data;
-	struct ieee80211_hdr *hdr;
-	bool unicast = false;
-	__le16 fc;
-	struct ieee80211_rx_status rx_status = {0};
-	struct rtl_stats stats = {
-		.signal = 0,
-		.rate = 0,
-	};
-
-	skb_pull(skb, RTL_RX_DESC_SIZE);
-	rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, rxdesc, skb);
-	skb_pull(skb, (stats.rx_drvinfo_size + stats.rx_bufshift));
-	hdr = (struct ieee80211_hdr *)(skb->data);
-	fc = hdr->frame_control;
-	if (!stats.crc) {
-		memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
-
-		if (is_broadcast_ether_addr(hdr->addr1)) {
-			/*TODO*/;
-		} else if (is_multicast_ether_addr(hdr->addr1)) {
-			/*TODO*/
-		} else {
-			unicast = true;
-			rtlpriv->stats.rxbytesunicast +=  skb->len;
-		}
-
-		if (ieee80211_is_data(fc)) {
-			rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
-
-			if (unicast)
-				rtlpriv->link_info.num_rx_inperiod++;
-		}
-
-		/* static bcn for roaming */
-		rtl_beacon_statistic(hw, skb);
-
-		if (likely(rtl_action_proc(hw, skb, false)))
-			ieee80211_rx(hw, skb);
-		else
-			dev_kfree_skb_any(skb);
-	}
-}
-
-static void _rtl_rx_pre_process(struct ieee80211_hw *hw, struct sk_buff *skb)
-{
-	struct sk_buff *_skb;
-	struct sk_buff_head rx_queue;
-	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
-
-	skb_queue_head_init(&rx_queue);
-	if (rtlusb->usb_rx_segregate_hdl)
-		rtlusb->usb_rx_segregate_hdl(hw, skb, &rx_queue);
-	WARN_ON(skb_queue_empty(&rx_queue));
-	while (!skb_queue_empty(&rx_queue)) {
-		_skb = skb_dequeue(&rx_queue);
-		_rtl_usb_rx_process_agg(hw, _skb);
-		ieee80211_rx(hw, _skb);
-	}
-}
-
-#define __RX_SKB_MAX_QUEUED	64
-
-static void _rtl_rx_work(unsigned long param)
-{
-	struct rtl_usb *rtlusb = (struct rtl_usb *)param;
-	struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
-	struct sk_buff *skb;
-
-	while ((skb = skb_dequeue(&rtlusb->rx_queue))) {
-		if (unlikely(IS_USB_STOP(rtlusb))) {
-			dev_kfree_skb_any(skb);
-			continue;
-		}
-
-		if (likely(!rtlusb->usb_rx_segregate_hdl)) {
-			_rtl_usb_rx_process_noagg(hw, skb);
-		} else {
-			/* TO DO */
-			_rtl_rx_pre_process(hw, skb);
-			pr_err("rx agg not supported\n");
-		}
-	}
-}
-
-static unsigned int _rtl_rx_get_padding(struct ieee80211_hdr *hdr,
-					unsigned int len)
-{
-#if NET_IP_ALIGN != 0
-	unsigned int padding = 0;
-#endif
-
-	/* make function no-op when possible */
-	if (NET_IP_ALIGN == 0 || len < sizeof(*hdr))
-		return 0;
-
-#if NET_IP_ALIGN != 0
-	/* alignment calculation as in lbtf_rx() / carl9170_rx_copy_data() */
-	/* TODO: deduplicate common code, define helper function instead? */
-
-	if (ieee80211_is_data_qos(hdr->frame_control)) {
-		u8 *qc = ieee80211_get_qos_ctl(hdr);
-
-		padding ^= NET_IP_ALIGN;
-
-		/* Input might be invalid, avoid accessing memory outside
-		 * the buffer.
-		 */
-		if ((unsigned long)qc - (unsigned long)hdr < len &&
-		    *qc & IEEE80211_QOS_CTL_A_MSDU_PRESENT)
-			padding ^= NET_IP_ALIGN;
-	}
-
-	if (ieee80211_has_a4(hdr->frame_control))
-		padding ^= NET_IP_ALIGN;
-
-	return padding;
-#endif
-}
-
-#define __RADIO_TAP_SIZE_RSV	32
-
-static void _rtl_rx_completed(struct urb *_urb)
-{
-	struct rtl_usb *rtlusb = (struct rtl_usb *)_urb->context;
-	struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	int err = 0;
-
-	if (unlikely(IS_USB_STOP(rtlusb)))
-		goto free;
-
-	if (likely(0 == _urb->status)) {
-		unsigned int padding;
-		struct sk_buff *skb;
-		unsigned int qlen;
-		unsigned int size = _urb->actual_length;
-		struct ieee80211_hdr *hdr;
-
-		if (size < RTL_RX_DESC_SIZE + sizeof(struct ieee80211_hdr)) {
-			RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
-				 "Too short packet from bulk IN! (len: %d)\n",
-				 size);
-			goto resubmit;
-		}
-
-		qlen = skb_queue_len(&rtlusb->rx_queue);
-		if (qlen >= __RX_SKB_MAX_QUEUED) {
-			RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
-				 "Pending RX skbuff queue full! (qlen: %d)\n",
-				 qlen);
-			goto resubmit;
-		}
-
-		hdr = (void *)(_urb->transfer_buffer + RTL_RX_DESC_SIZE);
-		padding = _rtl_rx_get_padding(hdr, size - RTL_RX_DESC_SIZE);
-
-		skb = dev_alloc_skb(size + __RADIO_TAP_SIZE_RSV + padding);
-		if (!skb) {
-			RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
-				 "Can't allocate skb for bulk IN!\n");
-			goto resubmit;
-		}
-
-		_rtl_install_trx_info(rtlusb, skb, rtlusb->in_ep);
-
-		/* Make sure the payload data is 4 byte aligned. */
-		skb_reserve(skb, padding);
-
-		/* reserve some space for mac80211's radiotap */
-		skb_reserve(skb, __RADIO_TAP_SIZE_RSV);
-
-		memcpy(skb_put(skb, size), _urb->transfer_buffer, size);
-
-		skb_queue_tail(&rtlusb->rx_queue, skb);
-		tasklet_schedule(&rtlusb->rx_work_tasklet);
-
-		goto resubmit;
-	}
-
-	switch (_urb->status) {
-	/* disconnect */
-	case -ENOENT:
-	case -ECONNRESET:
-	case -ENODEV:
-	case -ESHUTDOWN:
-		goto free;
-	default:
-		break;
-	}
-
-resubmit:
-	usb_anchor_urb(_urb, &rtlusb->rx_submitted);
-	err = usb_submit_urb(_urb, GFP_ATOMIC);
-	if (unlikely(err)) {
-		usb_unanchor_urb(_urb);
-		goto free;
-	}
-	return;
-
-free:
-	/* On some architectures, usb_free_coherent must not be called from
-	 * hardirq context. Queue urb to cleanup list.
-	 */
-	usb_anchor_urb(_urb, &rtlusb->rx_cleanup_urbs);
-}
-
-#undef __RADIO_TAP_SIZE_RSV
-
-static void _rtl_usb_cleanup_rx(struct ieee80211_hw *hw)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
-	struct urb *urb;
-
-	usb_kill_anchored_urbs(&rtlusb->rx_submitted);
-
-	tasklet_kill(&rtlusb->rx_work_tasklet);
-	cancel_work_sync(&rtlpriv->works.lps_change_work);
-
-	flush_workqueue(rtlpriv->works.rtl_wq);
-	destroy_workqueue(rtlpriv->works.rtl_wq);
-
-	skb_queue_purge(&rtlusb->rx_queue);
-
-	while ((urb = usb_get_from_anchor(&rtlusb->rx_cleanup_urbs))) {
-		usb_free_coherent(urb->dev, urb->transfer_buffer_length,
-				urb->transfer_buffer, urb->transfer_dma);
-		usb_free_urb(urb);
-	}
-}
-
-static int _rtl_usb_receive(struct ieee80211_hw *hw)
-{
-	struct urb *urb;
-	int err;
-	int i;
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
-
-	WARN_ON(0 == rtlusb->rx_urb_num);
-	/* 1600 == 1514 + max WLAN header + rtk info */
-	WARN_ON(rtlusb->rx_max_size < 1600);
-
-	for (i = 0; i < rtlusb->rx_urb_num; i++) {
-		err = -ENOMEM;
-		urb = usb_alloc_urb(0, GFP_KERNEL);
-		if (!urb) {
-			RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
-				 "Failed to alloc URB!!\n");
-			goto err_out;
-		}
-
-		err = _rtl_prep_rx_urb(hw, rtlusb, urb, GFP_KERNEL);
-		if (err < 0) {
-			RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
-				 "Failed to prep_rx_urb!!\n");
-			usb_free_urb(urb);
-			goto err_out;
-		}
-
-		usb_anchor_urb(urb, &rtlusb->rx_submitted);
-		err = usb_submit_urb(urb, GFP_KERNEL);
-		if (err)
-			goto err_out;
-		usb_free_urb(urb);
-	}
-	return 0;
-
-err_out:
-	usb_kill_anchored_urbs(&rtlusb->rx_submitted);
-	_rtl_usb_cleanup_rx(hw);
-	return err;
-}
-
-static int rtl_usb_start(struct ieee80211_hw *hw)
-{
-	int err;
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
-	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
-
-	err = rtlpriv->cfg->ops->hw_init(hw);
-	if (!err) {
-		rtl_init_rx_config(hw);
-
-		/* Enable software */
-		SET_USB_START(rtlusb);
-		/* should after adapter start and interrupt enable. */
-		set_hal_start(rtlhal);
-
-		/* Start bulk IN */
-		err = _rtl_usb_receive(hw);
-	}
-
-	return err;
-}
-/**
- *
- *
- */
-
-/*=======================  tx =========================================*/
-static void rtl_usb_cleanup(struct ieee80211_hw *hw)
-{
-	u32 i;
-	struct sk_buff *_skb;
-	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
-	struct ieee80211_tx_info *txinfo;
-
-	/* clean up rx stuff. */
-	_rtl_usb_cleanup_rx(hw);
-
-	/* clean up tx stuff */
-	for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) {
-		while ((_skb = skb_dequeue(&rtlusb->tx_skb_queue[i]))) {
-			rtlusb->usb_tx_cleanup(hw, _skb);
-			txinfo = IEEE80211_SKB_CB(_skb);
-			ieee80211_tx_info_clear_status(txinfo);
-			txinfo->flags |= IEEE80211_TX_STAT_ACK;
-			ieee80211_tx_status_irqsafe(hw, _skb);
-		}
-		usb_kill_anchored_urbs(&rtlusb->tx_pending[i]);
-	}
-	usb_kill_anchored_urbs(&rtlusb->tx_submitted);
-}
-
-/**
- *
- * We may add some struct into struct rtl_usb later. Do deinit here.
- *
- */
-static void rtl_usb_deinit(struct ieee80211_hw *hw)
-{
-	rtl_usb_cleanup(hw);
-}
-
-static void rtl_usb_stop(struct ieee80211_hw *hw)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
-	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
-
-	/* should after adapter start and interrupt enable. */
-	set_hal_stop(rtlhal);
-	cancel_work_sync(&rtlpriv->works.fill_h2c_cmd);
-	/* Enable software */
-	SET_USB_STOP(rtlusb);
-	rtlpriv->cfg->ops->hw_disable(hw);
-}
-
-static void _rtl_submit_tx_urb(struct ieee80211_hw *hw, struct urb *_urb)
-{
-	int err;
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
-
-	usb_anchor_urb(_urb, &rtlusb->tx_submitted);
-	err = usb_submit_urb(_urb, GFP_ATOMIC);
-	if (err < 0) {
-		struct sk_buff *skb;
-
-		RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
-			 "Failed to submit urb\n");
-		usb_unanchor_urb(_urb);
-		skb = (struct sk_buff *)_urb->context;
-		kfree_skb(skb);
-	}
-	usb_free_urb(_urb);
-}
-
-static int _usb_tx_post(struct ieee80211_hw *hw, struct urb *urb,
-			struct sk_buff *skb)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
-	struct ieee80211_tx_info *txinfo;
-
-	rtlusb->usb_tx_post_hdl(hw, urb, skb);
-	skb_pull(skb, RTL_TX_HEADER_SIZE);
-	txinfo = IEEE80211_SKB_CB(skb);
-	ieee80211_tx_info_clear_status(txinfo);
-	txinfo->flags |= IEEE80211_TX_STAT_ACK;
-
-	if (urb->status) {
-		RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
-			 "Urb has error status 0x%X\n", urb->status);
-		goto out;
-	}
-	/*  TODO:	statistics */
-out:
-	ieee80211_tx_status_irqsafe(hw, skb);
-	return urb->status;
-}
-
-static void _rtl_tx_complete(struct urb *urb)
-{
-	struct sk_buff *skb = (struct sk_buff *)urb->context;
-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct rtl_usb *rtlusb = (struct rtl_usb *)info->rate_driver_data[0];
-	struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
-	int err;
-
-	if (unlikely(IS_USB_STOP(rtlusb)))
-		return;
-	err = _usb_tx_post(hw, urb, skb);
-	if (err) {
-		/* Ignore error and keep issuiing other urbs */
-		return;
-	}
-}
-
-static struct urb *_rtl_usb_tx_urb_setup(struct ieee80211_hw *hw,
-				struct sk_buff *skb, u32 ep_num)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
-	struct urb *_urb;
-
-	WARN_ON(NULL == skb);
-	_urb = usb_alloc_urb(0, GFP_ATOMIC);
-	if (!_urb) {
-		RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
-			 "Can't allocate URB for bulk out!\n");
-		kfree_skb(skb);
-		return NULL;
-	}
-	_rtl_install_trx_info(rtlusb, skb, ep_num);
-	usb_fill_bulk_urb(_urb, rtlusb->udev, usb_sndbulkpipe(rtlusb->udev,
-			  ep_num), skb->data, skb->len, _rtl_tx_complete, skb);
-	_urb->transfer_flags |= URB_ZERO_PACKET;
-	return _urb;
-}
-
-static void _rtl_usb_transmit(struct ieee80211_hw *hw, struct sk_buff *skb,
-		       enum rtl_txq qnum)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
-	u32 ep_num;
-	struct urb *_urb = NULL;
-	struct sk_buff *_skb = NULL;
-
-	WARN_ON(NULL == rtlusb->usb_tx_aggregate_hdl);
-	if (unlikely(IS_USB_STOP(rtlusb))) {
-		RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
-			 "USB device is stopping...\n");
-		kfree_skb(skb);
-		return;
-	}
-	ep_num = rtlusb->ep_map.ep_mapping[qnum];
-	_skb = skb;
-	_urb = _rtl_usb_tx_urb_setup(hw, _skb, ep_num);
-	if (unlikely(!_urb)) {
-		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
-			 "Can't allocate urb. Drop skb!\n");
-		kfree_skb(skb);
-		return;
-	}
-	_rtl_submit_tx_urb(hw, _urb);
-}
-
-static void _rtl_usb_tx_preprocess(struct ieee80211_hw *hw,
-				   struct ieee80211_sta *sta,
-				   struct sk_buff *skb,
-				   u16 hw_queue)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct rtl_tx_desc *pdesc = NULL;
-	struct rtl_tcb_desc tcb_desc;
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
-	__le16 fc = hdr->frame_control;
-	u8 *pda_addr = hdr->addr1;
-	/* ssn */
-	u8 *qc = NULL;
-	u8 tid = 0;
-	u16 seq_number = 0;
-
-	memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
-	if (ieee80211_is_auth(fc)) {
-		RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
-		rtl_ips_nic_on(hw);
-	}
-
-	if (rtlpriv->psc.sw_ps_enabled) {
-		if (ieee80211_is_data(fc) && !ieee80211_is_nullfunc(fc) &&
-		    !ieee80211_has_pm(fc))
-			hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
-	}
-
-	rtl_action_proc(hw, skb, true);
-	if (is_multicast_ether_addr(pda_addr))
-		rtlpriv->stats.txbytesmulticast += skb->len;
-	else if (is_broadcast_ether_addr(pda_addr))
-		rtlpriv->stats.txbytesbroadcast += skb->len;
-	else
-		rtlpriv->stats.txbytesunicast += skb->len;
-	if (ieee80211_is_data_qos(fc)) {
-		qc = ieee80211_get_qos_ctl(hdr);
-		tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
-		seq_number = (le16_to_cpu(hdr->seq_ctrl) &
-			     IEEE80211_SCTL_SEQ) >> 4;
-		seq_number += 1;
-		seq_number <<= 4;
-	}
-	rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc, NULL, info, sta, skb,
-					hw_queue, &tcb_desc);
-	if (!ieee80211_has_morefrags(hdr->frame_control)) {
-		if (qc)
-			mac->tids[tid].seq_number = seq_number;
-	}
-	if (ieee80211_is_data(fc))
-		rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX);
-}
-
-static int rtl_usb_tx(struct ieee80211_hw *hw,
-		      struct ieee80211_sta *sta,
-		      struct sk_buff *skb,
-		      struct rtl_tcb_desc *dummy)
-{
-	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
-	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
-	__le16 fc = hdr->frame_control;
-	u16 hw_queue;
-
-	if (unlikely(is_hal_stop(rtlhal)))
-		goto err_free;
-	hw_queue = rtlusb->usb_mq_to_hwq(fc, skb_get_queue_mapping(skb));
-	_rtl_usb_tx_preprocess(hw, sta, skb, hw_queue);
-	_rtl_usb_transmit(hw, skb, hw_queue);
-	return NETDEV_TX_OK;
-
-err_free:
-	dev_kfree_skb_any(skb);
-	return NETDEV_TX_OK;
-}
-
-static bool rtl_usb_tx_chk_waitq_insert(struct ieee80211_hw *hw,
-					struct ieee80211_sta *sta,
-					struct sk_buff *skb)
-{
-	return false;
-}
-
-static void rtl_fill_h2c_cmd_work_callback(struct work_struct *work)
-{
-	struct rtl_works *rtlworks =
-	    container_of(work, struct rtl_works, fill_h2c_cmd);
-	struct ieee80211_hw *hw = rtlworks->hw;
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-
-	rtlpriv->cfg->ops->fill_h2c_cmd(hw, H2C_RA_MASK, 5, rtlpriv->rate_mask);
-}
-
-static struct rtl_intf_ops rtl_usb_ops = {
-	.adapter_start = rtl_usb_start,
-	.adapter_stop = rtl_usb_stop,
-	.adapter_tx = rtl_usb_tx,
-	.waitq_insert = rtl_usb_tx_chk_waitq_insert,
-};
-
-int rtl_usb_probe(struct usb_interface *intf,
-		  const struct usb_device_id *id,
-		  struct rtl_hal_cfg *rtl_hal_cfg)
-{
-	int err;
-	struct ieee80211_hw *hw = NULL;
-	struct rtl_priv *rtlpriv = NULL;
-	struct usb_device	*udev;
-	struct rtl_usb_priv *usb_priv;
-
-	hw = ieee80211_alloc_hw(sizeof(struct rtl_priv) +
-				sizeof(struct rtl_usb_priv), &rtl_ops);
-	if (!hw) {
-		RT_ASSERT(false, "ieee80211 alloc failed\n");
-		return -ENOMEM;
-	}
-	rtlpriv = hw->priv;
-	rtlpriv->usb_data = kzalloc(RTL_USB_MAX_RX_COUNT * sizeof(u32),
-				    GFP_KERNEL);
-	if (!rtlpriv->usb_data)
-		return -ENOMEM;
-
-	/* this spin lock must be initialized early */
-	spin_lock_init(&rtlpriv->locks.usb_lock);
-	INIT_WORK(&rtlpriv->works.fill_h2c_cmd,
-		  rtl_fill_h2c_cmd_work_callback);
-	INIT_WORK(&rtlpriv->works.lps_change_work,
-		  rtl_lps_change_work_callback);
-
-	rtlpriv->usb_data_index = 0;
-	init_completion(&rtlpriv->firmware_loading_complete);
-	SET_IEEE80211_DEV(hw, &intf->dev);
-	udev = interface_to_usbdev(intf);
-	usb_get_dev(udev);
-	usb_priv = rtl_usbpriv(hw);
-	memset(usb_priv, 0, sizeof(*usb_priv));
-	usb_priv->dev.intf = intf;
-	usb_priv->dev.udev = udev;
-	usb_set_intfdata(intf, hw);
-	/* init cfg & intf_ops */
-	rtlpriv->rtlhal.interface = INTF_USB;
-	rtlpriv->cfg = rtl_hal_cfg;
-	rtlpriv->intf_ops = &rtl_usb_ops;
-	rtl_dbgp_flag_init(hw);
-	/* Init IO handler */
-	_rtl_usb_io_handler_init(&udev->dev, hw);
-	rtlpriv->cfg->ops->read_chip_version(hw);
-	/*like read eeprom and so on */
-	rtlpriv->cfg->ops->read_eeprom_info(hw);
-	err = _rtl_usb_init(hw);
-	if (err)
-		goto error_out;
-	rtl_usb_init_sw(hw);
-	/* Init mac80211 sw */
-	err = rtl_init_core(hw);
-	if (err) {
-		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
-			 "Can't allocate sw for mac80211\n");
-		goto error_out;
-	}
-	if (rtlpriv->cfg->ops->init_sw_vars(hw)) {
-		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Can't init_sw_vars\n");
-		goto error_out;
-	}
-	rtlpriv->cfg->ops->init_sw_leds(hw);
-
-	err = ieee80211_register_hw(hw);
-	if (err) {
-		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
-			 "Can't register mac80211 hw.\n");
-		err = -ENODEV;
-		goto error_out;
-	}
-	rtlpriv->mac80211.mac80211_registered = 1;
-
-	set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
-	return 0;
-
-error_out:
-	rtl_deinit_core(hw);
-	_rtl_usb_io_handler_release(hw);
-	usb_put_dev(udev);
-	complete(&rtlpriv->firmware_loading_complete);
-	return -ENODEV;
-}
-EXPORT_SYMBOL(rtl_usb_probe);
-
-void rtl_usb_disconnect(struct usb_interface *intf)
-{
-	struct ieee80211_hw *hw = usb_get_intfdata(intf);
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
-	struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
-
-	if (unlikely(!rtlpriv))
-		return;
-	/* just in case driver is removed before firmware callback */
-	wait_for_completion(&rtlpriv->firmware_loading_complete);
-	clear_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
-	/*ieee80211_unregister_hw will call ops_stop */
-	if (rtlmac->mac80211_registered == 1) {
-		ieee80211_unregister_hw(hw);
-		rtlmac->mac80211_registered = 0;
-	} else {
-		rtl_deinit_deferred_work(hw);
-		rtlpriv->intf_ops->adapter_stop(hw);
-	}
-	/*deinit rfkill */
-	/* rtl_deinit_rfkill(hw); */
-	rtl_usb_deinit(hw);
-	rtl_deinit_core(hw);
-	kfree(rtlpriv->usb_data);
-	rtlpriv->cfg->ops->deinit_sw_leds(hw);
-	rtlpriv->cfg->ops->deinit_sw_vars(hw);
-	_rtl_usb_io_handler_release(hw);
-	usb_put_dev(rtlusb->udev);
-	usb_set_intfdata(intf, NULL);
-	ieee80211_free_hw(hw);
-}
-EXPORT_SYMBOL(rtl_usb_disconnect);
-
-int rtl_usb_suspend(struct usb_interface *pusb_intf, pm_message_t message)
-{
-	return 0;
-}
-EXPORT_SYMBOL(rtl_usb_suspend);
-
-int rtl_usb_resume(struct usb_interface *pusb_intf)
-{
-	return 0;
-}
-EXPORT_SYMBOL(rtl_usb_resume);