1 /******************************************************************************
3 * Copyright(c) 2009-2011 Realtek Corporation. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
21 * Contact Information:
22 * wlanfae <wlanfae@realtek.com>
23 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
24 * Hsinchu 300, Taiwan.
26 *****************************************************************************/
28 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
30 #include <linux/usb.h>
31 #include <linux/export.h>
38 #define REALTEK_USB_VENQT_READ 0xC0
39 #define REALTEK_USB_VENQT_WRITE 0x40
40 #define REALTEK_USB_VENQT_CMD_REQ 0x05
41 #define REALTEK_USB_VENQT_CMD_IDX 0x00
43 #define REALTEK_USB_VENQT_MAX_BUF_SIZE 254
45 static void usbctrl_async_callback(struct urb *urb)
49 kfree(urb->setup_packet);
51 kfree(urb->transfer_buffer);
55 static int _usbctrl_vendorreq_async_write(struct usb_device *udev, u8 request,
56 u16 value, u16 index, void *pdata,
62 struct usb_ctrlrequest *dr;
64 const u16 databuf_maxlen = REALTEK_USB_VENQT_MAX_BUF_SIZE;
67 if (WARN_ON_ONCE(len > databuf_maxlen))
70 pipe = usb_sndctrlpipe(udev, 0); /* write_out */
71 reqtype = REALTEK_USB_VENQT_WRITE;
73 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
77 databuf = kmalloc(databuf_maxlen, GFP_ATOMIC);
83 urb = usb_alloc_urb(0, GFP_ATOMIC);
90 dr->bRequestType = reqtype;
91 dr->bRequest = request;
92 dr->wValue = cpu_to_le16(value);
93 dr->wIndex = cpu_to_le16(index);
94 dr->wLength = cpu_to_le16(len);
95 memcpy(databuf, pdata, len);
96 usb_fill_control_urb(urb, udev, pipe,
97 (unsigned char *)dr, databuf, len,
98 usbctrl_async_callback, NULL);
99 rc = usb_submit_urb(urb, GFP_ATOMIC);
108 static int _usbctrl_vendorreq_sync_read(struct usb_device *udev, u8 request,
109 u16 value, u16 index, void *pdata,
116 pipe = usb_rcvctrlpipe(udev, 0); /* read_in */
117 reqtype = REALTEK_USB_VENQT_READ;
119 status = usb_control_msg(udev, pipe, request, reqtype, value, index,
123 pr_err("reg 0x%x, usbctrl_vendorreq TimeOut! status:0x%x value=0x%x\n",
124 value, status, *(u32 *)pdata);
128 static u32 _usb_read_sync(struct rtl_priv *rtlpriv, u32 addr, u16 len)
130 struct device *dev = rtlpriv->io.dev;
131 struct usb_device *udev = to_usb_device(dev);
138 spin_lock_irqsave(&rtlpriv->locks.usb_lock, flags);
139 if (++rtlpriv->usb_data_index >= RTL_USB_MAX_RX_COUNT)
140 rtlpriv->usb_data_index = 0;
141 data = &rtlpriv->usb_data[rtlpriv->usb_data_index];
142 spin_unlock_irqrestore(&rtlpriv->locks.usb_lock, flags);
143 request = REALTEK_USB_VENQT_CMD_REQ;
144 index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */
147 _usbctrl_vendorreq_sync_read(udev, request, wvalue, index, data, len);
148 return le32_to_cpu(*data);
151 static u8 _usb_read8_sync(struct rtl_priv *rtlpriv, u32 addr)
153 return (u8)_usb_read_sync(rtlpriv, addr, 1);
156 static u16 _usb_read16_sync(struct rtl_priv *rtlpriv, u32 addr)
158 return (u16)_usb_read_sync(rtlpriv, addr, 2);
161 static u32 _usb_read32_sync(struct rtl_priv *rtlpriv, u32 addr)
163 return _usb_read_sync(rtlpriv, addr, 4);
166 static void _usb_write_async(struct usb_device *udev, u32 addr, u32 val,
174 request = REALTEK_USB_VENQT_CMD_REQ;
175 index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */
176 wvalue = (u16)(addr&0x0000ffff);
178 _usbctrl_vendorreq_async_write(udev, request, wvalue, index, &data,
182 static void _usb_write8_async(struct rtl_priv *rtlpriv, u32 addr, u8 val)
184 struct device *dev = rtlpriv->io.dev;
186 _usb_write_async(to_usb_device(dev), addr, val, 1);
189 static void _usb_write16_async(struct rtl_priv *rtlpriv, u32 addr, u16 val)
191 struct device *dev = rtlpriv->io.dev;
193 _usb_write_async(to_usb_device(dev), addr, val, 2);
196 static void _usb_write32_async(struct rtl_priv *rtlpriv, u32 addr, u32 val)
198 struct device *dev = rtlpriv->io.dev;
200 _usb_write_async(to_usb_device(dev), addr, val, 4);
203 static void _rtl_usb_io_handler_init(struct device *dev,
204 struct ieee80211_hw *hw)
206 struct rtl_priv *rtlpriv = rtl_priv(hw);
208 rtlpriv->io.dev = dev;
209 mutex_init(&rtlpriv->io.bb_mutex);
210 rtlpriv->io.write8_async = _usb_write8_async;
211 rtlpriv->io.write16_async = _usb_write16_async;
212 rtlpriv->io.write32_async = _usb_write32_async;
213 rtlpriv->io.read8_sync = _usb_read8_sync;
214 rtlpriv->io.read16_sync = _usb_read16_sync;
215 rtlpriv->io.read32_sync = _usb_read32_sync;
218 static void _rtl_usb_io_handler_release(struct ieee80211_hw *hw)
220 struct rtl_priv __maybe_unused *rtlpriv = rtl_priv(hw);
222 mutex_destroy(&rtlpriv->io.bb_mutex);
227 * Default aggregation handler. Do nothing and just return the oldest skb.
229 static struct sk_buff *_none_usb_tx_aggregate_hdl(struct ieee80211_hw *hw,
230 struct sk_buff_head *list)
232 return skb_dequeue(list);
235 #define IS_HIGH_SPEED_USB(udev) \
236 ((USB_SPEED_HIGH == (udev)->speed) ? true : false)
238 static int _rtl_usb_init_tx(struct ieee80211_hw *hw)
241 struct rtl_priv *rtlpriv = rtl_priv(hw);
242 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
244 rtlusb->max_bulk_out_size = IS_HIGH_SPEED_USB(rtlusb->udev)
245 ? USB_HIGH_SPEED_BULK_SIZE
246 : USB_FULL_SPEED_BULK_SIZE;
248 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("USB Max Bulk-out Size=%d\n",
249 rtlusb->max_bulk_out_size));
251 for (i = 0; i < __RTL_TXQ_NUM; i++) {
252 u32 ep_num = rtlusb->ep_map.ep_mapping[i];
254 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
255 ("Invalid endpoint map setting!\n"));
260 rtlusb->usb_tx_post_hdl =
261 rtlpriv->cfg->usb_interface_cfg->usb_tx_post_hdl;
262 rtlusb->usb_tx_cleanup =
263 rtlpriv->cfg->usb_interface_cfg->usb_tx_cleanup;
264 rtlusb->usb_tx_aggregate_hdl =
265 (rtlpriv->cfg->usb_interface_cfg->usb_tx_aggregate_hdl)
266 ? rtlpriv->cfg->usb_interface_cfg->usb_tx_aggregate_hdl
267 : &_none_usb_tx_aggregate_hdl;
269 init_usb_anchor(&rtlusb->tx_submitted);
270 for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) {
271 skb_queue_head_init(&rtlusb->tx_skb_queue[i]);
272 init_usb_anchor(&rtlusb->tx_pending[i]);
277 static int _rtl_usb_init_rx(struct ieee80211_hw *hw)
279 struct rtl_priv *rtlpriv = rtl_priv(hw);
280 struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
281 struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
283 rtlusb->rx_max_size = rtlpriv->cfg->usb_interface_cfg->rx_max_size;
284 rtlusb->rx_urb_num = rtlpriv->cfg->usb_interface_cfg->rx_urb_num;
285 rtlusb->in_ep = rtlpriv->cfg->usb_interface_cfg->in_ep_num;
286 rtlusb->usb_rx_hdl = rtlpriv->cfg->usb_interface_cfg->usb_rx_hdl;
287 rtlusb->usb_rx_segregate_hdl =
288 rtlpriv->cfg->usb_interface_cfg->usb_rx_segregate_hdl;
290 pr_info("rx_max_size %d, rx_urb_num %d, in_ep %d\n",
291 rtlusb->rx_max_size, rtlusb->rx_urb_num, rtlusb->in_ep);
292 init_usb_anchor(&rtlusb->rx_submitted);
296 static int _rtl_usb_init(struct ieee80211_hw *hw)
298 struct rtl_priv *rtlpriv = rtl_priv(hw);
299 struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
300 struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
303 struct usb_interface *usb_intf = rtlusb->intf;
304 u8 epnums = usb_intf->cur_altsetting->desc.bNumEndpoints;
306 rtlusb->out_ep_nums = rtlusb->in_ep_nums = 0;
307 for (epidx = 0; epidx < epnums; epidx++) {
308 struct usb_endpoint_descriptor *pep_desc;
309 pep_desc = &usb_intf->cur_altsetting->endpoint[epidx].desc;
311 if (usb_endpoint_dir_in(pep_desc))
312 rtlusb->in_ep_nums++;
313 else if (usb_endpoint_dir_out(pep_desc))
314 rtlusb->out_ep_nums++;
316 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
317 ("USB EP(0x%02x), MaxPacketSize=%d ,Interval=%d.\n",
318 pep_desc->bEndpointAddress, pep_desc->wMaxPacketSize,
319 pep_desc->bInterval));
321 if (rtlusb->in_ep_nums < rtlpriv->cfg->usb_interface_cfg->in_ep_num)
324 /* usb endpoint mapping */
325 err = rtlpriv->cfg->usb_interface_cfg->usb_endpoint_mapping(hw);
326 rtlusb->usb_mq_to_hwq = rtlpriv->cfg->usb_interface_cfg->usb_mq_to_hwq;
327 _rtl_usb_init_tx(hw);
328 _rtl_usb_init_rx(hw);
332 static int _rtl_usb_init_sw(struct ieee80211_hw *hw)
334 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
335 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
336 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
337 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
340 ppsc->inactiveps = false;
341 ppsc->leisure_ps = false;
342 ppsc->fwctrl_lps = false;
343 ppsc->reg_fwctrl_lps = 3;
344 ppsc->reg_max_lps_awakeintvl = 5;
345 ppsc->fwctrl_psmode = FW_PS_DTIM_MODE;
348 mac->beacon_interval = 100;
351 mac->min_space_cfg = 0;
352 mac->max_mss_density = 0;
354 /* set sane AMPDU defaults */
355 mac->current_ampdu_density = 7;
356 mac->current_ampdu_factor = 3;
359 rtlusb->acm_method = eAcmWay2_SW;
362 /* HIMR - turn all on */
363 rtlusb->irq_mask[0] = 0xFFFFFFFF;
364 /* HIMR_EX - turn all on */
365 rtlusb->irq_mask[1] = 0xFFFFFFFF;
366 rtlusb->disableHWSM = true;
370 #define __RADIO_TAP_SIZE_RSV 32
372 static void _rtl_rx_completed(struct urb *urb);
374 static struct sk_buff *_rtl_prep_rx_urb(struct ieee80211_hw *hw,
375 struct rtl_usb *rtlusb,
380 struct rtl_priv *rtlpriv = rtl_priv(hw);
382 skb = __dev_alloc_skb((rtlusb->rx_max_size + __RADIO_TAP_SIZE_RSV),
385 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
386 ("Failed to __dev_alloc_skb!!\n"))
387 return ERR_PTR(-ENOMEM);
390 /* reserve some space for mac80211's radiotap */
391 skb_reserve(skb, __RADIO_TAP_SIZE_RSV);
392 usb_fill_bulk_urb(urb, rtlusb->udev,
393 usb_rcvbulkpipe(rtlusb->udev, rtlusb->in_ep),
394 skb->data, min(skb_tailroom(skb),
395 (int)rtlusb->rx_max_size),
396 _rtl_rx_completed, skb);
398 _rtl_install_trx_info(rtlusb, skb, rtlusb->in_ep);
402 #undef __RADIO_TAP_SIZE_RSV
404 static void _rtl_usb_rx_process_agg(struct ieee80211_hw *hw,
407 struct rtl_priv *rtlpriv = rtl_priv(hw);
408 u8 *rxdesc = skb->data;
409 struct ieee80211_hdr *hdr;
410 bool unicast = false;
412 struct ieee80211_rx_status rx_status = {0};
413 struct rtl_stats stats = {
419 skb_pull(skb, RTL_RX_DESC_SIZE);
420 rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, rxdesc, skb);
421 skb_pull(skb, (stats.rx_drvinfo_size + stats.rx_bufshift));
422 hdr = (struct ieee80211_hdr *)(skb->data);
423 fc = hdr->frame_control;
425 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
427 if (is_broadcast_ether_addr(hdr->addr1)) {
429 } else if (is_multicast_ether_addr(hdr->addr1)) {
433 rtlpriv->stats.rxbytesunicast += skb->len;
436 rtl_is_special_data(hw, skb, false);
438 if (ieee80211_is_data(fc)) {
439 rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
442 rtlpriv->link_info.num_rx_inperiod++;
447 static void _rtl_usb_rx_process_noagg(struct ieee80211_hw *hw,
450 struct rtl_priv *rtlpriv = rtl_priv(hw);
451 u8 *rxdesc = skb->data;
452 struct ieee80211_hdr *hdr;
453 bool unicast = false;
455 struct ieee80211_rx_status rx_status = {0};
456 struct rtl_stats stats = {
462 skb_pull(skb, RTL_RX_DESC_SIZE);
463 rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, rxdesc, skb);
464 skb_pull(skb, (stats.rx_drvinfo_size + stats.rx_bufshift));
465 hdr = (struct ieee80211_hdr *)(skb->data);
466 fc = hdr->frame_control;
468 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
470 if (is_broadcast_ether_addr(hdr->addr1)) {
472 } else if (is_multicast_ether_addr(hdr->addr1)) {
476 rtlpriv->stats.rxbytesunicast += skb->len;
479 rtl_is_special_data(hw, skb, false);
481 if (ieee80211_is_data(fc)) {
482 rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
485 rtlpriv->link_info.num_rx_inperiod++;
487 if (likely(rtl_action_proc(hw, skb, false))) {
488 struct sk_buff *uskb = NULL;
491 uskb = dev_alloc_skb(skb->len + 128);
492 if (uskb) { /* drop packet on allocation failure */
493 memcpy(IEEE80211_SKB_RXCB(uskb), &rx_status,
495 pdata = (u8 *)skb_put(uskb, skb->len);
496 memcpy(pdata, skb->data, skb->len);
497 ieee80211_rx_irqsafe(hw, uskb);
499 dev_kfree_skb_any(skb);
501 dev_kfree_skb_any(skb);
504 dev_kfree_skb_any(skb);
508 static void _rtl_rx_pre_process(struct ieee80211_hw *hw, struct sk_buff *skb)
510 struct sk_buff *_skb;
511 struct sk_buff_head rx_queue;
512 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
514 skb_queue_head_init(&rx_queue);
515 if (rtlusb->usb_rx_segregate_hdl)
516 rtlusb->usb_rx_segregate_hdl(hw, skb, &rx_queue);
517 WARN_ON(skb_queue_empty(&rx_queue));
518 while (!skb_queue_empty(&rx_queue)) {
519 _skb = skb_dequeue(&rx_queue);
520 _rtl_usb_rx_process_agg(hw, _skb);
521 ieee80211_rx_irqsafe(hw, _skb);
525 static void _rtl_rx_completed(struct urb *_urb)
527 struct sk_buff *skb = (struct sk_buff *)_urb->context;
528 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
529 struct rtl_usb *rtlusb = (struct rtl_usb *)info->rate_driver_data[0];
530 struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
531 struct rtl_priv *rtlpriv = rtl_priv(hw);
534 if (unlikely(IS_USB_STOP(rtlusb)))
537 if (likely(0 == _urb->status)) {
538 /* If this code were moved to work queue, would CPU
539 * utilization be improved? NOTE: We shall allocate another skb
540 * and reuse the original one.
542 skb_put(skb, _urb->actual_length);
544 if (likely(!rtlusb->usb_rx_segregate_hdl)) {
545 struct sk_buff *_skb;
546 _rtl_usb_rx_process_noagg(hw, skb);
547 _skb = _rtl_prep_rx_urb(hw, rtlusb, _urb, GFP_ATOMIC);
550 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
551 ("Can't allocate skb for bulk IN!\n"));
557 _rtl_rx_pre_process(hw, skb);
558 pr_err("rx agg not supported\n");
563 switch (_urb->status) {
575 skb_reset_tail_pointer(skb);
578 usb_anchor_urb(_urb, &rtlusb->rx_submitted);
579 err = usb_submit_urb(_urb, GFP_ATOMIC);
581 usb_unanchor_urb(_urb);
587 dev_kfree_skb_irq(skb);
590 static int _rtl_usb_receive(struct ieee80211_hw *hw)
596 struct rtl_priv *rtlpriv = rtl_priv(hw);
597 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
599 WARN_ON(0 == rtlusb->rx_urb_num);
600 /* 1600 == 1514 + max WLAN header + rtk info */
601 WARN_ON(rtlusb->rx_max_size < 1600);
603 for (i = 0; i < rtlusb->rx_urb_num; i++) {
605 urb = usb_alloc_urb(0, GFP_KERNEL);
607 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
608 ("Failed to alloc URB!!\n"))
612 skb = _rtl_prep_rx_urb(hw, rtlusb, urb, GFP_KERNEL);
614 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
615 ("Failed to prep_rx_urb!!\n"))
620 usb_anchor_urb(urb, &rtlusb->rx_submitted);
621 err = usb_submit_urb(urb, GFP_KERNEL);
629 usb_kill_anchored_urbs(&rtlusb->rx_submitted);
633 static int rtl_usb_start(struct ieee80211_hw *hw)
636 struct rtl_priv *rtlpriv = rtl_priv(hw);
637 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
638 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
640 err = rtlpriv->cfg->ops->hw_init(hw);
641 rtl_init_rx_config(hw);
643 /* Enable software */
644 SET_USB_START(rtlusb);
645 /* should after adapter start and interrupt enable. */
646 set_hal_start(rtlhal);
649 _rtl_usb_receive(hw);
658 /*======================= tx =========================================*/
659 static void rtl_usb_cleanup(struct ieee80211_hw *hw)
662 struct sk_buff *_skb;
663 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
664 struct ieee80211_tx_info *txinfo;
666 SET_USB_STOP(rtlusb);
668 /* clean up rx stuff. */
669 usb_kill_anchored_urbs(&rtlusb->rx_submitted);
671 /* clean up tx stuff */
672 for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) {
673 while ((_skb = skb_dequeue(&rtlusb->tx_skb_queue[i]))) {
674 rtlusb->usb_tx_cleanup(hw, _skb);
675 txinfo = IEEE80211_SKB_CB(_skb);
676 ieee80211_tx_info_clear_status(txinfo);
677 txinfo->flags |= IEEE80211_TX_STAT_ACK;
678 ieee80211_tx_status_irqsafe(hw, _skb);
680 usb_kill_anchored_urbs(&rtlusb->tx_pending[i]);
682 usb_kill_anchored_urbs(&rtlusb->tx_submitted);
687 * We may add some struct into struct rtl_usb later. Do deinit here.
690 static void rtl_usb_deinit(struct ieee80211_hw *hw)
695 static void rtl_usb_stop(struct ieee80211_hw *hw)
697 struct rtl_priv *rtlpriv = rtl_priv(hw);
698 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
699 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
701 /* should after adapter start and interrupt enable. */
702 set_hal_stop(rtlhal);
703 /* Enable software */
704 SET_USB_STOP(rtlusb);
706 rtlpriv->cfg->ops->hw_disable(hw);
709 static void _rtl_submit_tx_urb(struct ieee80211_hw *hw, struct urb *_urb)
712 struct rtl_priv *rtlpriv = rtl_priv(hw);
713 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
715 usb_anchor_urb(_urb, &rtlusb->tx_submitted);
716 err = usb_submit_urb(_urb, GFP_ATOMIC);
720 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
721 ("Failed to submit urb.\n"));
722 usb_unanchor_urb(_urb);
723 skb = (struct sk_buff *)_urb->context;
729 static int _usb_tx_post(struct ieee80211_hw *hw, struct urb *urb,
732 struct rtl_priv *rtlpriv = rtl_priv(hw);
733 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
734 struct ieee80211_tx_info *txinfo;
736 rtlusb->usb_tx_post_hdl(hw, urb, skb);
737 skb_pull(skb, RTL_TX_HEADER_SIZE);
738 txinfo = IEEE80211_SKB_CB(skb);
739 ieee80211_tx_info_clear_status(txinfo);
740 txinfo->flags |= IEEE80211_TX_STAT_ACK;
743 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
744 ("Urb has error status 0x%X\n", urb->status));
747 /* TODO: statistics */
749 ieee80211_tx_status_irqsafe(hw, skb);
753 static void _rtl_tx_complete(struct urb *urb)
755 struct sk_buff *skb = (struct sk_buff *)urb->context;
756 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
757 struct rtl_usb *rtlusb = (struct rtl_usb *)info->rate_driver_data[0];
758 struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
761 if (unlikely(IS_USB_STOP(rtlusb)))
763 err = _usb_tx_post(hw, urb, skb);
765 /* Ignore error and keep issuiing other urbs */
770 static struct urb *_rtl_usb_tx_urb_setup(struct ieee80211_hw *hw,
771 struct sk_buff *skb, u32 ep_num)
773 struct rtl_priv *rtlpriv = rtl_priv(hw);
774 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
777 WARN_ON(NULL == skb);
778 _urb = usb_alloc_urb(0, GFP_ATOMIC);
780 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
781 ("Can't allocate URB for bulk out!\n"));
785 _rtl_install_trx_info(rtlusb, skb, ep_num);
786 usb_fill_bulk_urb(_urb, rtlusb->udev, usb_sndbulkpipe(rtlusb->udev,
787 ep_num), skb->data, skb->len, _rtl_tx_complete, skb);
788 _urb->transfer_flags |= URB_ZERO_PACKET;
792 static void _rtl_usb_transmit(struct ieee80211_hw *hw, struct sk_buff *skb,
795 struct rtl_priv *rtlpriv = rtl_priv(hw);
796 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
798 struct urb *_urb = NULL;
799 struct sk_buff *_skb = NULL;
800 struct sk_buff_head *skb_list;
801 struct usb_anchor *urb_list;
803 WARN_ON(NULL == rtlusb->usb_tx_aggregate_hdl);
804 if (unlikely(IS_USB_STOP(rtlusb))) {
805 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
806 ("USB device is stopping...\n"));
810 ep_num = rtlusb->ep_map.ep_mapping[qnum];
811 skb_list = &rtlusb->tx_skb_queue[ep_num];
813 _urb = _rtl_usb_tx_urb_setup(hw, _skb, ep_num);
814 if (unlikely(!_urb)) {
815 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
816 ("Can't allocate urb. Drop skb!\n"));
820 urb_list = &rtlusb->tx_pending[ep_num];
821 _rtl_submit_tx_urb(hw, _urb);
824 static void _rtl_usb_tx_preprocess(struct ieee80211_hw *hw, struct sk_buff *skb,
827 struct rtl_priv *rtlpriv = rtl_priv(hw);
828 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
829 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
830 struct rtl_tx_desc *pdesc = NULL;
831 struct rtl_tcb_desc tcb_desc;
832 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
833 __le16 fc = hdr->frame_control;
834 u8 *pda_addr = hdr->addr1;
840 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
841 if (ieee80211_is_auth(fc)) {
842 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, ("MAC80211_LINKING\n"));
846 if (rtlpriv->psc.sw_ps_enabled) {
847 if (ieee80211_is_data(fc) && !ieee80211_is_nullfunc(fc) &&
848 !ieee80211_has_pm(fc))
849 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
852 rtl_action_proc(hw, skb, true);
853 if (is_multicast_ether_addr(pda_addr))
854 rtlpriv->stats.txbytesmulticast += skb->len;
855 else if (is_broadcast_ether_addr(pda_addr))
856 rtlpriv->stats.txbytesbroadcast += skb->len;
858 rtlpriv->stats.txbytesunicast += skb->len;
859 if (ieee80211_is_data_qos(fc)) {
860 qc = ieee80211_get_qos_ctl(hdr);
861 tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
862 seq_number = (le16_to_cpu(hdr->seq_ctrl) &
863 IEEE80211_SCTL_SEQ) >> 4;
867 rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc, info, skb,
868 hw_queue, &tcb_desc);
869 if (!ieee80211_has_morefrags(hdr->frame_control)) {
871 mac->tids[tid].seq_number = seq_number;
873 if (ieee80211_is_data(fc))
874 rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX);
877 static int rtl_usb_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
878 struct rtl_tcb_desc *dummy)
880 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
881 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
882 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
883 __le16 fc = hdr->frame_control;
886 if (unlikely(is_hal_stop(rtlhal)))
888 hw_queue = rtlusb->usb_mq_to_hwq(fc, skb_get_queue_mapping(skb));
889 _rtl_usb_tx_preprocess(hw, skb, hw_queue);
890 _rtl_usb_transmit(hw, skb, hw_queue);
894 dev_kfree_skb_any(skb);
898 static bool rtl_usb_tx_chk_waitq_insert(struct ieee80211_hw *hw,
904 static struct rtl_intf_ops rtl_usb_ops = {
905 .adapter_start = rtl_usb_start,
906 .adapter_stop = rtl_usb_stop,
907 .adapter_tx = rtl_usb_tx,
908 .waitq_insert = rtl_usb_tx_chk_waitq_insert,
911 int __devinit rtl_usb_probe(struct usb_interface *intf,
912 const struct usb_device_id *id,
913 struct rtl_hal_cfg *rtl_hal_cfg)
916 struct ieee80211_hw *hw = NULL;
917 struct rtl_priv *rtlpriv = NULL;
918 struct usb_device *udev;
919 struct rtl_usb_priv *usb_priv;
921 hw = ieee80211_alloc_hw(sizeof(struct rtl_priv) +
922 sizeof(struct rtl_usb_priv), &rtl_ops);
924 RT_ASSERT(false, ("%s : ieee80211 alloc failed\n", __func__));
928 rtlpriv->usb_data = kzalloc(RTL_USB_MAX_RX_COUNT * sizeof(u32),
930 if (!rtlpriv->usb_data)
933 /* this spin lock must be initialized early */
934 spin_lock_init(&rtlpriv->locks.usb_lock);
936 rtlpriv->usb_data_index = 0;
937 SET_IEEE80211_DEV(hw, &intf->dev);
938 udev = interface_to_usbdev(intf);
940 usb_priv = rtl_usbpriv(hw);
941 memset(usb_priv, 0, sizeof(*usb_priv));
942 usb_priv->dev.intf = intf;
943 usb_priv->dev.udev = udev;
944 usb_set_intfdata(intf, hw);
945 /* init cfg & intf_ops */
946 rtlpriv->rtlhal.interface = INTF_USB;
947 rtlpriv->cfg = rtl_hal_cfg;
948 rtlpriv->intf_ops = &rtl_usb_ops;
949 rtl_dbgp_flag_init(hw);
950 /* Init IO handler */
951 _rtl_usb_io_handler_init(&udev->dev, hw);
952 rtlpriv->cfg->ops->read_chip_version(hw);
953 /*like read eeprom and so on */
954 rtlpriv->cfg->ops->read_eeprom_info(hw);
955 if (rtlpriv->cfg->ops->init_sw_vars(hw)) {
956 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
957 ("Can't init_sw_vars.\n"));
960 rtlpriv->cfg->ops->init_sw_leds(hw);
961 err = _rtl_usb_init(hw);
962 err = _rtl_usb_init_sw(hw);
963 /* Init mac80211 sw */
964 err = rtl_init_core(hw);
966 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
967 ("Can't allocate sw for mac80211.\n"));
972 /* rtl_init_rfkill(hw); */
974 err = ieee80211_register_hw(hw);
976 RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG,
977 ("Can't register mac80211 hw.\n"));
980 rtlpriv->mac80211.mac80211_registered = 1;
982 set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
986 _rtl_usb_io_handler_release(hw);
987 ieee80211_free_hw(hw);
991 EXPORT_SYMBOL(rtl_usb_probe);
993 void rtl_usb_disconnect(struct usb_interface *intf)
995 struct ieee80211_hw *hw = usb_get_intfdata(intf);
996 struct rtl_priv *rtlpriv = rtl_priv(hw);
997 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
998 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
1000 if (unlikely(!rtlpriv))
1002 /*ieee80211_unregister_hw will call ops_stop */
1003 if (rtlmac->mac80211_registered == 1) {
1004 ieee80211_unregister_hw(hw);
1005 rtlmac->mac80211_registered = 0;
1007 rtl_deinit_deferred_work(hw);
1008 rtlpriv->intf_ops->adapter_stop(hw);
1011 /* rtl_deinit_rfkill(hw); */
1013 rtl_deinit_core(hw);
1014 kfree(rtlpriv->usb_data);
1015 rtlpriv->cfg->ops->deinit_sw_leds(hw);
1016 rtlpriv->cfg->ops->deinit_sw_vars(hw);
1017 _rtl_usb_io_handler_release(hw);
1018 usb_put_dev(rtlusb->udev);
1019 usb_set_intfdata(intf, NULL);
1020 ieee80211_free_hw(hw);
1022 EXPORT_SYMBOL(rtl_usb_disconnect);
1024 int rtl_usb_suspend(struct usb_interface *pusb_intf, pm_message_t message)
1028 EXPORT_SYMBOL(rtl_usb_suspend);
1030 int rtl_usb_resume(struct usb_interface *pusb_intf)
1034 EXPORT_SYMBOL(rtl_usb_resume);