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Merge tag 'drm/for-3.12-rc1' of git://anongit.freedesktop.org/tegra/linux into drm...
[deliverable/linux.git] / drivers / net / wireless / rtlwifi / usb.c
CommitLineData
2ca20f79
G		 1/******************************************************************************
2 *
a8d76066 3 * Copyright(c) 2009-2012 Realtek Corporation. All rights reserved.
2ca20f79
G		 4 *
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.
8 *
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
12 * more details.
13 *
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
17 *
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
20 *
21 * Contact Information:
22 * wlanfae <wlanfae@realtek.com>
23 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
24 * Hsinchu 300, Taiwan.
25 *
26 *****************************************************************************/
292b1192 27
2ca20f79 28#include "wifi.h"
d273bb20 29#include "core.h"
2ca20f79
G		 30#include "usb.h"
31#include "base.h"
32#include "ps.h"
040a7278 33#include "rtl8192c/fw_common.h"
d273bb20 34#include <linux/export.h>
6f334c2b
LF		 35#include <linux/module.h>
36
37MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
38MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
39MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
40MODULE_LICENSE("GPL");
41MODULE_DESCRIPTION("USB basic driver for rtlwifi");
2ca20f79
G		 42
43#define REALTEK_USB_VENQT_READ 0xC0
44#define REALTEK_USB_VENQT_WRITE 0x40
45#define REALTEK_USB_VENQT_CMD_REQ 0x05
46#define REALTEK_USB_VENQT_CMD_IDX 0x00
47
040a7278 48#define MAX_USBCTRL_VENDORREQ_TIMES 10
2ca20f79
G		 49
50static void usbctrl_async_callback(struct urb *urb)
51{
bc6b8923
JK		 52 if (urb) {
53 /* free dr */
54 kfree(urb->setup_packet);
55 /* free databuf */
56 kfree(urb->transfer_buffer);
57 }
2ca20f79
G		 58}
59
60static int _usbctrl_vendorreq_async_write(struct usb_device *udev, u8 request,
61 u16 value, u16 index, void *pdata,
62 u16 len)
63{
64 int rc;
65 unsigned int pipe;
66 u8 reqtype;
67 struct usb_ctrlrequest *dr;
68 struct urb *urb;
bc6b8923
JK		 69 const u16 databuf_maxlen = REALTEK_USB_VENQT_MAX_BUF_SIZE;
70 u8 *databuf;
71
72 if (WARN_ON_ONCE(len > databuf_maxlen))
73 len = databuf_maxlen;
2ca20f79
G		 74
75 pipe = usb_sndctrlpipe(udev, 0); /* write_out */
76 reqtype = REALTEK_USB_VENQT_WRITE;
77
bc6b8923
JK		 78 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
79 if (!dr)
2ca20f79
G		 80 return -ENOMEM;
81
bc6b8923
JK		 82 databuf = kmalloc(databuf_maxlen, GFP_ATOMIC);
83 if (!databuf) {
84 kfree(dr);
85 return -ENOMEM;
86 }
87
2ca20f79
G		 88 urb = usb_alloc_urb(0, GFP_ATOMIC);
89 if (!urb) {
bc6b8923
JK		 90 kfree(databuf);
91 kfree(dr);
2ca20f79
G		 92 return -ENOMEM;
93 }
94
2ca20f79
G		 95 dr->bRequestType = reqtype;
96 dr->bRequest = request;
97 dr->wValue = cpu_to_le16(value);
98 dr->wIndex = cpu_to_le16(index);
99 dr->wLength = cpu_to_le16(len);
abfabc9b 100 /* data are already in little-endian order */
bc6b8923 101 memcpy(databuf, pdata, len);
2ca20f79 102 usb_fill_control_urb(urb, udev, pipe,
bc6b8923
JK		 103 (unsigned char *)dr, databuf, len,
104 usbctrl_async_callback, NULL);
2ca20f79 105 rc = usb_submit_urb(urb, GFP_ATOMIC);
bc6b8923
JK		 106 if (rc < 0) {
107 kfree(databuf);
108 kfree(dr);
109 }
2ca20f79
G		 110 usb_free_urb(urb);
111 return rc;
112}
113
114static int _usbctrl_vendorreq_sync_read(struct usb_device *udev, u8 request,
115 u16 value, u16 index, void *pdata,
116 u16 len)
117{
118 unsigned int pipe;
119 int status;
120 u8 reqtype;
040a7278 121 int vendorreq_times = 0;
abfabc9b 122 static int count;
2ca20f79
G		 123
124 pipe = usb_rcvctrlpipe(udev, 0); /* read_in */
125 reqtype = REALTEK_USB_VENQT_READ;
126
eb1852b1 127 do {
040a7278
G		 128 status = usb_control_msg(udev, pipe, request, reqtype, value,
129 index, pdata, len, 0); /*max. timeout*/
130 if (status < 0) {
131 /* firmware download is checksumed, don't retry */
132 if ((value >= FW_8192C_START_ADDRESS &&
133 value <= FW_8192C_END_ADDRESS))
134 break;
135 } else {
136 break;
137 }
eb1852b1
JL		 138 } while (++vendorreq_times < MAX_USBCTRL_VENDORREQ_TIMES);
139
abfabc9b 140 if (status < 0 && count++ < 4)
292b1192 141 pr_err("reg 0x%x, usbctrl_vendorreq TimeOut! status:0x%x value=0x%x\n",
8e2c406a 142 value, status, *(u32 *)pdata);
2ca20f79
G		 143 return status;
144}
145
a7959c13 146static u32 _usb_read_sync(struct rtl_priv *rtlpriv, u32 addr, u16 len)
2ca20f79 147{
a7959c13
LF		 148 struct device *dev = rtlpriv->io.dev;
149 struct usb_device *udev = to_usb_device(dev);
2ca20f79
G		 150 u8 request;
151 u16 wvalue;
152 u16 index;
3ce4d85b
LF		 153 __le32 *data;
154 unsigned long flags;
2ca20f79 155
3ce4d85b
LF		 156 spin_lock_irqsave(&rtlpriv->locks.usb_lock, flags);
157 if (++rtlpriv->usb_data_index >= RTL_USB_MAX_RX_COUNT)
158 rtlpriv->usb_data_index = 0;
159 data = &rtlpriv->usb_data[rtlpriv->usb_data_index];
160 spin_unlock_irqrestore(&rtlpriv->locks.usb_lock, flags);
2ca20f79
G		 161 request = REALTEK_USB_VENQT_CMD_REQ;
162 index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */
163
164 wvalue = (u16)addr;
165 _usbctrl_vendorreq_sync_read(udev, request, wvalue, index, data, len);
a7959c13 166 return le32_to_cpu(*data);
2ca20f79
G		 167}
168
169static u8 _usb_read8_sync(struct rtl_priv *rtlpriv, u32 addr)
170{
a7959c13 171 return (u8)_usb_read_sync(rtlpriv, addr, 1);
2ca20f79
G		 172}
173
174static u16 _usb_read16_sync(struct rtl_priv *rtlpriv, u32 addr)
175{
a7959c13 176 return (u16)_usb_read_sync(rtlpriv, addr, 2);
2ca20f79
G		 177}
178
179static u32 _usb_read32_sync(struct rtl_priv *rtlpriv, u32 addr)
180{
a7959c13 181 return _usb_read_sync(rtlpriv, addr, 4);
2ca20f79
G		 182}
183
184static void _usb_write_async(struct usb_device *udev, u32 addr, u32 val,
185 u16 len)
186{
187 u8 request;
188 u16 wvalue;
189 u16 index;
abfabc9b 190 __le32 data;
2ca20f79
G		 191
192 request = REALTEK_USB_VENQT_CMD_REQ;
193 index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */
194 wvalue = (u16)(addr&0x0000ffff);
abfabc9b 195 data = cpu_to_le32(val);
2ca20f79
G		 196 _usbctrl_vendorreq_async_write(udev, request, wvalue, index, &data,
197 len);
198}
199
200static void _usb_write8_async(struct rtl_priv *rtlpriv, u32 addr, u8 val)
201{
202 struct device *dev = rtlpriv->io.dev;
203
204 _usb_write_async(to_usb_device(dev), addr, val, 1);
205}
206
207static void _usb_write16_async(struct rtl_priv *rtlpriv, u32 addr, u16 val)
208{
209 struct device *dev = rtlpriv->io.dev;
210
211 _usb_write_async(to_usb_device(dev), addr, val, 2);
212}
213
214static void _usb_write32_async(struct rtl_priv *rtlpriv, u32 addr, u32 val)
215{
216 struct device *dev = rtlpriv->io.dev;
217
218 _usb_write_async(to_usb_device(dev), addr, val, 4);
219}
220
ff6ff96b
LF		 221static void _usb_writeN_sync(struct rtl_priv *rtlpriv, u32 addr, void *data,
222 u16 len)
223{
224 struct device *dev = rtlpriv->io.dev;
225 struct usb_device *udev = to_usb_device(dev);
226 u8 request = REALTEK_USB_VENQT_CMD_REQ;
227 u8 reqtype = REALTEK_USB_VENQT_WRITE;
228 u16 wvalue;
229 u16 index = REALTEK_USB_VENQT_CMD_IDX;
230 int pipe = usb_sndctrlpipe(udev, 0); /* write_out */
231 u8 *buffer;
ff6ff96b 232
4c3de592 233 wvalue = (u16)(addr & 0x0000ffff);
7c21bb69 234 buffer = kmemdup(data, len, GFP_ATOMIC);
ff6ff96b
LF		 235 if (!buffer)
236 return;
ff6ff96b
LF		 237 usb_control_msg(udev, pipe, request, reqtype, wvalue,
238 index, buffer, len, 50);
239
4c3de592 240 kfree(buffer);
ff6ff96b
LF		 241}
242
2ca20f79
G		 243static void _rtl_usb_io_handler_init(struct device *dev,
244 struct ieee80211_hw *hw)
245{
246 struct rtl_priv *rtlpriv = rtl_priv(hw);
247
248 rtlpriv->io.dev = dev;
249 mutex_init(&rtlpriv->io.bb_mutex);
250 rtlpriv->io.write8_async = _usb_write8_async;
251 rtlpriv->io.write16_async = _usb_write16_async;
252 rtlpriv->io.write32_async = _usb_write32_async;
2ca20f79
G		 253 rtlpriv->io.read8_sync = _usb_read8_sync;
254 rtlpriv->io.read16_sync = _usb_read16_sync;
255 rtlpriv->io.read32_sync = _usb_read32_sync;
ff6ff96b 256 rtlpriv->io.writeN_sync = _usb_writeN_sync;
2ca20f79
G		 257}
258
259static void _rtl_usb_io_handler_release(struct ieee80211_hw *hw)
260{
2e3e66e3 261 struct rtl_priv __maybe_unused *rtlpriv = rtl_priv(hw);
2ca20f79
G		 262
263 mutex_destroy(&rtlpriv->io.bb_mutex);
264}
265
266/**
267 *
268 * Default aggregation handler. Do nothing and just return the oldest skb.
269 */
270static struct sk_buff *_none_usb_tx_aggregate_hdl(struct ieee80211_hw *hw,
271 struct sk_buff_head *list)
272{
273 return skb_dequeue(list);
274}
275
276#define IS_HIGH_SPEED_USB(udev) \
277 ((USB_SPEED_HIGH == (udev)->speed) ? true : false)
278
279static int _rtl_usb_init_tx(struct ieee80211_hw *hw)
280{
281 u32 i;
282 struct rtl_priv *rtlpriv = rtl_priv(hw);
283 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
284
285 rtlusb->max_bulk_out_size = IS_HIGH_SPEED_USB(rtlusb->udev)
286 ? USB_HIGH_SPEED_BULK_SIZE
287 : USB_FULL_SPEED_BULK_SIZE;
288
f30d7507
JP		 289 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "USB Max Bulk-out Size=%d\n",
290 rtlusb->max_bulk_out_size);
2ca20f79
G		 291
292 for (i = 0; i < __RTL_TXQ_NUM; i++) {
293 u32 ep_num = rtlusb->ep_map.ep_mapping[i];
294 if (!ep_num) {
295 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
f30d7507 296 "Invalid endpoint map setting!\n");
2ca20f79
G		 297 return -EINVAL;
298 }
299 }
300
301 rtlusb->usb_tx_post_hdl =
302 rtlpriv->cfg->usb_interface_cfg->usb_tx_post_hdl;
303 rtlusb->usb_tx_cleanup =
304 rtlpriv->cfg->usb_interface_cfg->usb_tx_cleanup;
305 rtlusb->usb_tx_aggregate_hdl =
306 (rtlpriv->cfg->usb_interface_cfg->usb_tx_aggregate_hdl)
307 ? rtlpriv->cfg->usb_interface_cfg->usb_tx_aggregate_hdl
308 : &_none_usb_tx_aggregate_hdl;
309
310 init_usb_anchor(&rtlusb->tx_submitted);
311 for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) {
312 skb_queue_head_init(&rtlusb->tx_skb_queue[i]);
313 init_usb_anchor(&rtlusb->tx_pending[i]);
314 }
315 return 0;
316}
317
29bb7013
JK		 318static void _rtl_rx_work(unsigned long param);
319
2ca20f79
G		 320static int _rtl_usb_init_rx(struct ieee80211_hw *hw)
321{
322 struct rtl_priv *rtlpriv = rtl_priv(hw);
323 struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
324 struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
325
326 rtlusb->rx_max_size = rtlpriv->cfg->usb_interface_cfg->rx_max_size;
327 rtlusb->rx_urb_num = rtlpriv->cfg->usb_interface_cfg->rx_urb_num;
328 rtlusb->in_ep = rtlpriv->cfg->usb_interface_cfg->in_ep_num;
329 rtlusb->usb_rx_hdl = rtlpriv->cfg->usb_interface_cfg->usb_rx_hdl;
330 rtlusb->usb_rx_segregate_hdl =
331 rtlpriv->cfg->usb_interface_cfg->usb_rx_segregate_hdl;
332
292b1192 333 pr_info("rx_max_size %d, rx_urb_num %d, in_ep %d\n",
2ca20f79
G		 334 rtlusb->rx_max_size, rtlusb->rx_urb_num, rtlusb->in_ep);
335 init_usb_anchor(&rtlusb->rx_submitted);
872de8ff 336 init_usb_anchor(&rtlusb->rx_cleanup_urbs);
29bb7013
JK		 337
338 skb_queue_head_init(&rtlusb->rx_queue);
339 rtlusb->rx_work_tasklet.func = _rtl_rx_work;
340 rtlusb->rx_work_tasklet.data = (unsigned long)rtlusb;
341
2ca20f79
G		 342 return 0;
343}
344
345static int _rtl_usb_init(struct ieee80211_hw *hw)
346{
347 struct rtl_priv *rtlpriv = rtl_priv(hw);
348 struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
349 struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
350 int err;
351 u8 epidx;
352 struct usb_interface *usb_intf = rtlusb->intf;
353 u8 epnums = usb_intf->cur_altsetting->desc.bNumEndpoints;
354
355 rtlusb->out_ep_nums = rtlusb->in_ep_nums = 0;
356 for (epidx = 0; epidx < epnums; epidx++) {
357 struct usb_endpoint_descriptor *pep_desc;
358 pep_desc = &usb_intf->cur_altsetting->endpoint[epidx].desc;
359
360 if (usb_endpoint_dir_in(pep_desc))
361 rtlusb->in_ep_nums++;
362 else if (usb_endpoint_dir_out(pep_desc))
363 rtlusb->out_ep_nums++;
364
365 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
f30d7507 366 "USB EP(0x%02x), MaxPacketSize=%d, Interval=%d\n",
2ca20f79 367 pep_desc->bEndpointAddress, pep_desc->wMaxPacketSize,
f30d7507 368 pep_desc->bInterval);
2ca20f79 369 }
48de1a17
LF		 370 if (rtlusb->in_ep_nums < rtlpriv->cfg->usb_interface_cfg->in_ep_num) {
371 pr_err("Too few input end points found\n");
372 return -EINVAL;
373 }
374 if (rtlusb->out_ep_nums == 0) {
375 pr_err("No output end points found\n");
376 return -EINVAL;
377 }
2ca20f79
G		 378 /* usb endpoint mapping */
379 err = rtlpriv->cfg->usb_interface_cfg->usb_endpoint_mapping(hw);
380 rtlusb->usb_mq_to_hwq = rtlpriv->cfg->usb_interface_cfg->usb_mq_to_hwq;
381 _rtl_usb_init_tx(hw);
382 _rtl_usb_init_rx(hw);
383 return err;
384}
385
8f526ab4 386static void rtl_usb_init_sw(struct ieee80211_hw *hw)
2ca20f79
G		 387{
388 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
389 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
390 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
391 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
392
393 rtlhal->hw = hw;
7ea47240
LF		 394 ppsc->inactiveps = false;
395 ppsc->leisure_ps = false;
396 ppsc->fwctrl_lps = false;
397 ppsc->reg_fwctrl_lps = 3;
2ca20f79
G		 398 ppsc->reg_max_lps_awakeintvl = 5;
399 ppsc->fwctrl_psmode = FW_PS_DTIM_MODE;
400
401 /* IBSS */
402 mac->beacon_interval = 100;
403
404 /* AMPDU */
405 mac->min_space_cfg = 0;
406 mac->max_mss_density = 0;
407
408 /* set sane AMPDU defaults */
409 mac->current_ampdu_density = 7;
410 mac->current_ampdu_factor = 3;
411
412 /* QOS */
413 rtlusb->acm_method = eAcmWay2_SW;
414
415 /* IRQ */
416 /* HIMR - turn all on */
417 rtlusb->irq_mask[0] = 0xFFFFFFFF;
418 /* HIMR_EX - turn all on */
419 rtlusb->irq_mask[1] = 0xFFFFFFFF;
420 rtlusb->disableHWSM = true;
2ca20f79
G		 421}
422
2ca20f79
G		 423static void _rtl_rx_completed(struct urb *urb);
424
872de8ff
JK		 425static int _rtl_prep_rx_urb(struct ieee80211_hw *hw, struct rtl_usb *rtlusb,
426 struct urb *urb, gfp_t gfp_mask)
2ca20f79 427{
2ca20f79 428 struct rtl_priv *rtlpriv = rtl_priv(hw);
872de8ff 429 void *buf;
2ca20f79 430
872de8ff
JK		 431 buf = usb_alloc_coherent(rtlusb->udev, rtlusb->rx_max_size, gfp_mask,
432 &urb->transfer_dma);
433 if (!buf) {
2ca20f79 434 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
872de8ff
JK		 435 "Failed to usb_alloc_coherent!!\n");
436 return -ENOMEM;
2ca20f79
G		 437 }
438
2ca20f79
G		 439 usb_fill_bulk_urb(urb, rtlusb->udev,
440 usb_rcvbulkpipe(rtlusb->udev, rtlusb->in_ep),
872de8ff
JK		 441 buf, rtlusb->rx_max_size, _rtl_rx_completed, rtlusb);
442 urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
2ca20f79 443
872de8ff 444 return 0;
2ca20f79
G		 445}
446
2ca20f79
G		 447static void _rtl_usb_rx_process_agg(struct ieee80211_hw *hw,
448 struct sk_buff *skb)
449{
450 struct rtl_priv *rtlpriv = rtl_priv(hw);
451 u8 *rxdesc = skb->data;
452 struct ieee80211_hdr *hdr;
453 bool unicast = false;
17c9ac62 454 __le16 fc;
2ca20f79
G		 455 struct ieee80211_rx_status rx_status = {0};
456 struct rtl_stats stats = {
457 .signal = 0,
458 .noise = -98,
459 .rate = 0,
460 };
461
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);
17c9ac62 466 fc = hdr->frame_control;
7ea47240 467 if (!stats.crc) {
2ca20f79
G		 468 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
469
470 if (is_broadcast_ether_addr(hdr->addr1)) {
471 /*TODO*/;
472 } else if (is_multicast_ether_addr(hdr->addr1)) {
473 /*TODO*/
474 } else {
475 unicast = true;
476 rtlpriv->stats.rxbytesunicast += skb->len;
477 }
478
479 rtl_is_special_data(hw, skb, false);
480
481 if (ieee80211_is_data(fc)) {
482 rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
483
484 if (unicast)
485 rtlpriv->link_info.num_rx_inperiod++;
486 }
487 }
488}
489
490static void _rtl_usb_rx_process_noagg(struct ieee80211_hw *hw,
491 struct sk_buff *skb)
492{
493 struct rtl_priv *rtlpriv = rtl_priv(hw);
494 u8 *rxdesc = skb->data;
495 struct ieee80211_hdr *hdr;
496 bool unicast = false;
17c9ac62 497 __le16 fc;
2ca20f79
G		 498 struct ieee80211_rx_status rx_status = {0};
499 struct rtl_stats stats = {
500 .signal = 0,
501 .noise = -98,
502 .rate = 0,
503 };
504
505 skb_pull(skb, RTL_RX_DESC_SIZE);
506 rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, rxdesc, skb);
507 skb_pull(skb, (stats.rx_drvinfo_size + stats.rx_bufshift));
508 hdr = (struct ieee80211_hdr *)(skb->data);
17c9ac62 509 fc = hdr->frame_control;
7ea47240 510 if (!stats.crc) {
2ca20f79
G		 511 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
512
513 if (is_broadcast_ether_addr(hdr->addr1)) {
514 /*TODO*/;
515 } else if (is_multicast_ether_addr(hdr->addr1)) {
516 /*TODO*/
517 } else {
518 unicast = true;
519 rtlpriv->stats.rxbytesunicast += skb->len;
520 }
521
522 rtl_is_special_data(hw, skb, false);
523
524 if (ieee80211_is_data(fc)) {
525 rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
526
527 if (unicast)
528 rtlpriv->link_info.num_rx_inperiod++;
529 }
d7d0f081 530
cc0446bf
LF		 531 /* static bcn for roaming */
532 rtl_beacon_statistic(hw, skb);
533
d7d0f081 534 if (likely(rtl_action_proc(hw, skb, false)))
29bb7013 535 ieee80211_rx(hw, skb);
d7d0f081 536 else
2ca20f79 537 dev_kfree_skb_any(skb);
2ca20f79
G		 538 }
539}
540
541static void _rtl_rx_pre_process(struct ieee80211_hw *hw, struct sk_buff *skb)
542{
543 struct sk_buff *_skb;
544 struct sk_buff_head rx_queue;
545 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
546
547 skb_queue_head_init(&rx_queue);
548 if (rtlusb->usb_rx_segregate_hdl)
549 rtlusb->usb_rx_segregate_hdl(hw, skb, &rx_queue);
550 WARN_ON(skb_queue_empty(&rx_queue));
551 while (!skb_queue_empty(&rx_queue)) {
552 _skb = skb_dequeue(&rx_queue);
0a06ad8e 553 _rtl_usb_rx_process_agg(hw, _skb);
29bb7013
JK		 554 ieee80211_rx(hw, _skb);
555 }
556}
557
558#define __RX_SKB_MAX_QUEUED 32
559
560static void _rtl_rx_work(unsigned long param)
561{
562 struct rtl_usb *rtlusb = (struct rtl_usb *)param;
563 struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
564 struct sk_buff *skb;
565
566 while ((skb = skb_dequeue(&rtlusb->rx_queue))) {
567 if (unlikely(IS_USB_STOP(rtlusb))) {
568 dev_kfree_skb_any(skb);
569 continue;
570 }
571
572 if (likely(!rtlusb->usb_rx_segregate_hdl)) {
573 _rtl_usb_rx_process_noagg(hw, skb);
574 } else {
575 /* TO DO */
576 _rtl_rx_pre_process(hw, skb);
577 pr_err("rx agg not supported\n");
578 }
2ca20f79
G		 579 }
580}
581
657e2765
JK		 582static unsigned int _rtl_rx_get_padding(struct ieee80211_hdr *hdr,
583 unsigned int len)
584{
585 unsigned int padding = 0;
586
587 /* make function no-op when possible */
588 if (NET_IP_ALIGN == 0 || len < sizeof(*hdr))
589 return 0;
590
591 /* alignment calculation as in lbtf_rx() / carl9170_rx_copy_data() */
592 /* TODO: deduplicate common code, define helper function instead? */
593
594 if (ieee80211_is_data_qos(hdr->frame_control)) {
595 u8 *qc = ieee80211_get_qos_ctl(hdr);
596
597 padding ^= NET_IP_ALIGN;
598
599 /* Input might be invalid, avoid accessing memory outside
600 * the buffer.
601 */
602 if ((unsigned long)qc - (unsigned long)hdr < len &&
603 *qc & IEEE80211_QOS_CTL_A_MSDU_PRESENT)
604 padding ^= NET_IP_ALIGN;
605 }
606
607 if (ieee80211_has_a4(hdr->frame_control))
608 padding ^= NET_IP_ALIGN;
609
610 return padding;
611}
612
872de8ff
JK		 613#define __RADIO_TAP_SIZE_RSV 32
614
2ca20f79
G		 615static void _rtl_rx_completed(struct urb *_urb)
616{
872de8ff 617 struct rtl_usb *rtlusb = (struct rtl_usb *)_urb->context;
2ca20f79
G		 618 struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
619 struct rtl_priv *rtlpriv = rtl_priv(hw);
620 int err = 0;
621
622 if (unlikely(IS_USB_STOP(rtlusb)))
623 goto free;
624
625 if (likely(0 == _urb->status)) {
657e2765 626 unsigned int padding;
872de8ff 627 struct sk_buff *skb;
29bb7013 628 unsigned int qlen;
872de8ff 629 unsigned int size = _urb->actual_length;
657e2765 630 struct ieee80211_hdr *hdr;
872de8ff
JK		 631
632 if (size < RTL_RX_DESC_SIZE + sizeof(struct ieee80211_hdr)) {
633 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
634 "Too short packet from bulk IN! (len: %d)\n",
635 size);
636 goto resubmit;
637 }
638
29bb7013
JK		 639 qlen = skb_queue_len(&rtlusb->rx_queue);
640 if (qlen >= __RX_SKB_MAX_QUEUED) {
641 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
642 "Pending RX skbuff queue full! (qlen: %d)\n",
643 qlen);
644 goto resubmit;
645 }
646
657e2765
JK		 647 hdr = (void *)(_urb->transfer_buffer + RTL_RX_DESC_SIZE);
648 padding = _rtl_rx_get_padding(hdr, size - RTL_RX_DESC_SIZE);
649
650 skb = dev_alloc_skb(size + __RADIO_TAP_SIZE_RSV + padding);
872de8ff
JK		 651 if (!skb) {
652 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
653 "Can't allocate skb for bulk IN!\n");
654 goto resubmit;
655 }
656
657 _rtl_install_trx_info(rtlusb, skb, rtlusb->in_ep);
658
657e2765
JK		 659 /* Make sure the payload data is 4 byte aligned. */
660 skb_reserve(skb, padding);
661
872de8ff
JK		 662 /* reserve some space for mac80211's radiotap */
663 skb_reserve(skb, __RADIO_TAP_SIZE_RSV);
664
665 memcpy(skb_put(skb, size), _urb->transfer_buffer, size);
666
29bb7013
JK		 667 skb_queue_tail(&rtlusb->rx_queue, skb);
668 tasklet_schedule(&rtlusb->rx_work_tasklet);
872de8ff 669
2ca20f79
G		 670 goto resubmit;
671 }
672
673 switch (_urb->status) {
674 /* disconnect */
675 case -ENOENT:
676 case -ECONNRESET:
677 case -ENODEV:
678 case -ESHUTDOWN:
679 goto free;
680 default:
681 break;
682 }
683
684resubmit:
2ca20f79
G		 685 usb_anchor_urb(_urb, &rtlusb->rx_submitted);
686 err = usb_submit_urb(_urb, GFP_ATOMIC);
687 if (unlikely(err)) {
688 usb_unanchor_urb(_urb);
689 goto free;
690 }
691 return;
692
693free:
872de8ff
JK		 694 /* On some architectures, usb_free_coherent must not be called from
695 * hardirq context. Queue urb to cleanup list.
696 */
697 usb_anchor_urb(_urb, &rtlusb->rx_cleanup_urbs);
698}
699
700#undef __RADIO_TAP_SIZE_RSV
701
702static void _rtl_usb_cleanup_rx(struct ieee80211_hw *hw)
703{
704 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
705 struct urb *urb;
706
707 usb_kill_anchored_urbs(&rtlusb->rx_submitted);
708
29bb7013
JK		 709 tasklet_kill(&rtlusb->rx_work_tasklet);
710 skb_queue_purge(&rtlusb->rx_queue);
711
872de8ff
JK		 712 while ((urb = usb_get_from_anchor(&rtlusb->rx_cleanup_urbs))) {
713 usb_free_coherent(urb->dev, urb->transfer_buffer_length,
714 urb->transfer_buffer, urb->transfer_dma);
715 usb_free_urb(urb);
716 }
2ca20f79
G		 717}
718
719static int _rtl_usb_receive(struct ieee80211_hw *hw)
720{
721 struct urb *urb;
2ca20f79
G		 722 int err;
723 int i;
724 struct rtl_priv *rtlpriv = rtl_priv(hw);
725 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
726
727 WARN_ON(0 == rtlusb->rx_urb_num);
728 /* 1600 == 1514 + max WLAN header + rtk info */
729 WARN_ON(rtlusb->rx_max_size < 1600);
730
731 for (i = 0; i < rtlusb->rx_urb_num; i++) {
732 err = -ENOMEM;
733 urb = usb_alloc_urb(0, GFP_KERNEL);
734 if (!urb) {
735 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
f30d7507 736 "Failed to alloc URB!!\n");
2ca20f79
G		 737 goto err_out;
738 }
739
872de8ff
JK		 740 err = _rtl_prep_rx_urb(hw, rtlusb, urb, GFP_KERNEL);
741 if (err < 0) {
2ca20f79 742 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
f30d7507 743 "Failed to prep_rx_urb!!\n");
1474a898 744 usb_free_urb(urb);
2ca20f79
G		 745 goto err_out;
746 }
747
748 usb_anchor_urb(urb, &rtlusb->rx_submitted);
749 err = usb_submit_urb(urb, GFP_KERNEL);
750 if (err)
751 goto err_out;
752 usb_free_urb(urb);
753 }
754 return 0;
755
756err_out:
757 usb_kill_anchored_urbs(&rtlusb->rx_submitted);
872de8ff 758 _rtl_usb_cleanup_rx(hw);
2ca20f79
G		 759 return err;
760}
761
762static int rtl_usb_start(struct ieee80211_hw *hw)
763{
764 int err;
765 struct rtl_priv *rtlpriv = rtl_priv(hw);
766 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
767 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
768
769 err = rtlpriv->cfg->ops->hw_init(hw);
b0302aba
LF		 770 if (!err) {
771 rtl_init_rx_config(hw);
2ca20f79 772
b0302aba
LF		 773 /* Enable software */
774 SET_USB_START(rtlusb);
775 /* should after adapter start and interrupt enable. */
776 set_hal_start(rtlhal);
2ca20f79 777
b0302aba 778 /* Start bulk IN */
0c7e9207 779 err = _rtl_usb_receive(hw);
b0302aba 780 }
2ca20f79
G		 781
782 return err;
783}
784/**
785 *
786 *
787 */
788
789/*======================= tx =========================================*/
790static void rtl_usb_cleanup(struct ieee80211_hw *hw)
791{
792 u32 i;
793 struct sk_buff *_skb;
794 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
795 struct ieee80211_tx_info *txinfo;
796
797 SET_USB_STOP(rtlusb);
798
799 /* clean up rx stuff. */
872de8ff 800 _rtl_usb_cleanup_rx(hw);
2ca20f79
G		 801
802 /* clean up tx stuff */
803 for (i = 0; i < RTL_USB_MAX_EP_NUM; i++) {
804 while ((_skb = skb_dequeue(&rtlusb->tx_skb_queue[i]))) {
805 rtlusb->usb_tx_cleanup(hw, _skb);
806 txinfo = IEEE80211_SKB_CB(_skb);
807 ieee80211_tx_info_clear_status(txinfo);
808 txinfo->flags |= IEEE80211_TX_STAT_ACK;
809 ieee80211_tx_status_irqsafe(hw, _skb);
810 }
811 usb_kill_anchored_urbs(&rtlusb->tx_pending[i]);
812 }
813 usb_kill_anchored_urbs(&rtlusb->tx_submitted);
814}
815
816/**
817 *
818 * We may add some struct into struct rtl_usb later. Do deinit here.
819 *
820 */
821static void rtl_usb_deinit(struct ieee80211_hw *hw)
822{
823 rtl_usb_cleanup(hw);
824}
825
826static void rtl_usb_stop(struct ieee80211_hw *hw)
827{
828 struct rtl_priv *rtlpriv = rtl_priv(hw);
829 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
830 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
831
832 /* should after adapter start and interrupt enable. */
833 set_hal_stop(rtlhal);
5b8df24e 834 cancel_work_sync(&rtlpriv->works.fill_h2c_cmd);
2ca20f79
G		 835 /* Enable software */
836 SET_USB_STOP(rtlusb);
837 rtl_usb_deinit(hw);
838 rtlpriv->cfg->ops->hw_disable(hw);
839}
840
841static void _rtl_submit_tx_urb(struct ieee80211_hw *hw, struct urb *_urb)
842{
843 int err;
844 struct rtl_priv *rtlpriv = rtl_priv(hw);
845 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
846
847 usb_anchor_urb(_urb, &rtlusb->tx_submitted);
848 err = usb_submit_urb(_urb, GFP_ATOMIC);
849 if (err < 0) {
850 struct sk_buff *skb;
851
852 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
f30d7507 853 "Failed to submit urb\n");
2ca20f79
G		 854 usb_unanchor_urb(_urb);
855 skb = (struct sk_buff *)_urb->context;
856 kfree_skb(skb);
857 }
858 usb_free_urb(_urb);
859}
860
861static int _usb_tx_post(struct ieee80211_hw *hw, struct urb *urb,
862 struct sk_buff *skb)
863{
864 struct rtl_priv *rtlpriv = rtl_priv(hw);
865 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
866 struct ieee80211_tx_info *txinfo;
867
868 rtlusb->usb_tx_post_hdl(hw, urb, skb);
869 skb_pull(skb, RTL_TX_HEADER_SIZE);
870 txinfo = IEEE80211_SKB_CB(skb);
871 ieee80211_tx_info_clear_status(txinfo);
872 txinfo->flags |= IEEE80211_TX_STAT_ACK;
873
874 if (urb->status) {
875 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
f30d7507 876 "Urb has error status 0x%X\n", urb->status);
2ca20f79
G		 877 goto out;
878 }
879 /* TODO: statistics */
880out:
881 ieee80211_tx_status_irqsafe(hw, skb);
882 return urb->status;
883}
884
885static void _rtl_tx_complete(struct urb *urb)
886{
887 struct sk_buff *skb = (struct sk_buff *)urb->context;
888 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
889 struct rtl_usb *rtlusb = (struct rtl_usb *)info->rate_driver_data[0];
890 struct ieee80211_hw *hw = usb_get_intfdata(rtlusb->intf);
891 int err;
892
893 if (unlikely(IS_USB_STOP(rtlusb)))
894 return;
895 err = _usb_tx_post(hw, urb, skb);
896 if (err) {
897 /* Ignore error and keep issuiing other urbs */
898 return;
899 }
900}
901
902static struct urb *_rtl_usb_tx_urb_setup(struct ieee80211_hw *hw,
903 struct sk_buff *skb, u32 ep_num)
904{
905 struct rtl_priv *rtlpriv = rtl_priv(hw);
906 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
907 struct urb *_urb;
908
909 WARN_ON(NULL == skb);
910 _urb = usb_alloc_urb(0, GFP_ATOMIC);
911 if (!_urb) {
912 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
f30d7507 913 "Can't allocate URB for bulk out!\n");
2ca20f79
G		 914 kfree_skb(skb);
915 return NULL;
916 }
917 _rtl_install_trx_info(rtlusb, skb, ep_num);
918 usb_fill_bulk_urb(_urb, rtlusb->udev, usb_sndbulkpipe(rtlusb->udev,
919 ep_num), skb->data, skb->len, _rtl_tx_complete, skb);
920 _urb->transfer_flags |= URB_ZERO_PACKET;
921 return _urb;
922}
923
924static void _rtl_usb_transmit(struct ieee80211_hw *hw, struct sk_buff *skb,
925 enum rtl_txq qnum)
926{
927 struct rtl_priv *rtlpriv = rtl_priv(hw);
928 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
929 u32 ep_num;
930 struct urb *_urb = NULL;
931 struct sk_buff *_skb = NULL;
2ca20f79
G		 932
933 WARN_ON(NULL == rtlusb->usb_tx_aggregate_hdl);
934 if (unlikely(IS_USB_STOP(rtlusb))) {
935 RT_TRACE(rtlpriv, COMP_USB, DBG_EMERG,
f30d7507 936 "USB device is stopping...\n");
2ca20f79
G		 937 kfree_skb(skb);
938 return;
939 }
940 ep_num = rtlusb->ep_map.ep_mapping[qnum];
2ca20f79
G		 941 _skb = skb;
942 _urb = _rtl_usb_tx_urb_setup(hw, _skb, ep_num);
943 if (unlikely(!_urb)) {
944 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
f30d7507 945 "Can't allocate urb. Drop skb!\n");
36ef0b47 946 kfree_skb(skb);
2ca20f79
G		 947 return;
948 }
2ca20f79
G		 949 _rtl_submit_tx_urb(hw, _urb);
950}
951
36323f81
TH		 952static void _rtl_usb_tx_preprocess(struct ieee80211_hw *hw,
953 struct ieee80211_sta *sta,
954 struct sk_buff *skb,
955 u16 hw_queue)
2ca20f79
G		 956{
957 struct rtl_priv *rtlpriv = rtl_priv(hw);
958 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
959 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
960 struct rtl_tx_desc *pdesc = NULL;
d93cdee9 961 struct rtl_tcb_desc tcb_desc;
2ca20f79 962 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
17c9ac62 963 __le16 fc = hdr->frame_control;
2ca20f79
G		 964 u8 *pda_addr = hdr->addr1;
965 /* ssn */
966 u8 *qc = NULL;
967 u8 tid = 0;
968 u16 seq_number = 0;
969
831d8547 970 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
d93cdee9 971 if (ieee80211_is_auth(fc)) {
f30d7507 972 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n");
d93cdee9
C		 973 rtl_ips_nic_on(hw);
974 }
975
976 if (rtlpriv->psc.sw_ps_enabled) {
977 if (ieee80211_is_data(fc) && !ieee80211_is_nullfunc(fc) &&
978 !ieee80211_has_pm(fc))
979 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
980 }
981
2ca20f79
G		 982 rtl_action_proc(hw, skb, true);
983 if (is_multicast_ether_addr(pda_addr))
984 rtlpriv->stats.txbytesmulticast += skb->len;
985 else if (is_broadcast_ether_addr(pda_addr))
986 rtlpriv->stats.txbytesbroadcast += skb->len;
987 else
988 rtlpriv->stats.txbytesunicast += skb->len;
989 if (ieee80211_is_data_qos(fc)) {
990 qc = ieee80211_get_qos_ctl(hdr);
991 tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
992 seq_number = (le16_to_cpu(hdr->seq_ctrl) &
993 IEEE80211_SCTL_SEQ) >> 4;
994 seq_number += 1;
995 seq_number <<= 4;
996 }
36323f81 997 rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc, info, sta, skb,
d93cdee9 998 hw_queue, &tcb_desc);
2ca20f79
G		 999 if (!ieee80211_has_morefrags(hdr->frame_control)) {
1000 if (qc)
1001 mac->tids[tid].seq_number = seq_number;
1002 }
1003 if (ieee80211_is_data(fc))
1004 rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX);
1005}
1006
36323f81
TH		 1007static int rtl_usb_tx(struct ieee80211_hw *hw,
1008 struct ieee80211_sta *sta,
1009 struct sk_buff *skb,
0baa0fd7 1010 struct rtl_tcb_desc *dummy)
2ca20f79
G		 1011{
1012 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
1013 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1014 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
17c9ac62 1015 __le16 fc = hdr->frame_control;
2ca20f79
G		 1016 u16 hw_queue;
1017
1018 if (unlikely(is_hal_stop(rtlhal)))
1019 goto err_free;
1020 hw_queue = rtlusb->usb_mq_to_hwq(fc, skb_get_queue_mapping(skb));
36323f81 1021 _rtl_usb_tx_preprocess(hw, sta, skb, hw_queue);
2ca20f79
G		 1022 _rtl_usb_transmit(hw, skb, hw_queue);
1023 return NETDEV_TX_OK;
1024
1025err_free:
1026 dev_kfree_skb_any(skb);
1027 return NETDEV_TX_OK;
1028}
1029
1030static bool rtl_usb_tx_chk_waitq_insert(struct ieee80211_hw *hw,
36323f81 1031 struct ieee80211_sta *sta,
2ca20f79
G		 1032 struct sk_buff *skb)
1033{
1034 return false;
1035}
1036
5b8df24e
LF		 1037static void rtl_fill_h2c_cmd_work_callback(struct work_struct *work)
1038{
1039 struct rtl_works *rtlworks =
1040 container_of(work, struct rtl_works, fill_h2c_cmd);
1041 struct ieee80211_hw *hw = rtlworks->hw;
1042 struct rtl_priv *rtlpriv = rtl_priv(hw);
1043
1044 rtlpriv->cfg->ops->fill_h2c_cmd(hw, H2C_RA_MASK, 5, rtlpriv->rate_mask);
1045}
1046
2ca20f79
G		 1047static struct rtl_intf_ops rtl_usb_ops = {
1048 .adapter_start = rtl_usb_start,
1049 .adapter_stop = rtl_usb_stop,
1050 .adapter_tx = rtl_usb_tx,
1051 .waitq_insert = rtl_usb_tx_chk_waitq_insert,
1052};
1053
9e2ff36b 1054int rtl_usb_probe(struct usb_interface *intf,
957f4aca
LF		 1055 const struct usb_device_id *id,
1056 struct rtl_hal_cfg *rtl_hal_cfg)
2ca20f79
G		 1057{
1058 int err;
1059 struct ieee80211_hw *hw = NULL;
1060 struct rtl_priv *rtlpriv = NULL;
1061 struct usb_device *udev;
1062 struct rtl_usb_priv *usb_priv;
1063
1064 hw = ieee80211_alloc_hw(sizeof(struct rtl_priv) +
1065 sizeof(struct rtl_usb_priv), &rtl_ops);
1066 if (!hw) {
9d833ed7 1067 RT_ASSERT(false, "ieee80211 alloc failed\n");
2ca20f79
G		 1068 return -ENOMEM;
1069 }
1070 rtlpriv = hw->priv;
a7959c13
LF		 1071 rtlpriv->usb_data = kzalloc(RTL_USB_MAX_RX_COUNT * sizeof(u32),
1072 GFP_KERNEL);
1073 if (!rtlpriv->usb_data)
1074 return -ENOMEM;
3ce4d85b
LF		 1075
1076 /* this spin lock must be initialized early */
1077 spin_lock_init(&rtlpriv->locks.usb_lock);
5b8df24e
LF		 1078 INIT_WORK(&rtlpriv->works.fill_h2c_cmd,
1079 rtl_fill_h2c_cmd_work_callback);
bcfb8794
LF		 1080 INIT_WORK(&rtlpriv->works.lps_change_work,
1081 rtl_lps_change_work_callback);
3ce4d85b 1082
a7959c13 1083 rtlpriv->usb_data_index = 0;
b0302aba 1084 init_completion(&rtlpriv->firmware_loading_complete);
2ca20f79
G		 1085 SET_IEEE80211_DEV(hw, &intf->dev);
1086 udev = interface_to_usbdev(intf);
1087 usb_get_dev(udev);
1088 usb_priv = rtl_usbpriv(hw);
1089 memset(usb_priv, 0, sizeof(*usb_priv));
1090 usb_priv->dev.intf = intf;
1091 usb_priv->dev.udev = udev;
1092 usb_set_intfdata(intf, hw);
1093 /* init cfg & intf_ops */
1094 rtlpriv->rtlhal.interface = INTF_USB;
957f4aca 1095 rtlpriv->cfg = rtl_hal_cfg;
2ca20f79
G		 1096 rtlpriv->intf_ops = &rtl_usb_ops;
1097 rtl_dbgp_flag_init(hw);
1098 /* Init IO handler */
1099 _rtl_usb_io_handler_init(&udev->dev, hw);
1100 rtlpriv->cfg->ops->read_chip_version(hw);
1101 /*like read eeprom and so on */
1102 rtlpriv->cfg->ops->read_eeprom_info(hw);
2ca20f79 1103 err = _rtl_usb_init(hw);
48de1a17
LF		 1104 if (err)
1105 goto error_out;
8f526ab4 1106 rtl_usb_init_sw(hw);
2ca20f79
G		 1107 /* Init mac80211 sw */
1108 err = rtl_init_core(hw);
1109 if (err) {
1110 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
f30d7507 1111 "Can't allocate sw for mac80211\n");
2ca20f79
G		 1112 goto error_out;
1113 }
574e02ab
LF		 1114 if (rtlpriv->cfg->ops->init_sw_vars(hw)) {
1115 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Can't init_sw_vars\n");
1116 goto error_out;
1117 }
1118 rtlpriv->cfg->ops->init_sw_leds(hw);
2ca20f79 1119
2ca20f79
G		 1120 return 0;
1121error_out:
1122 rtl_deinit_core(hw);
1123 _rtl_usb_io_handler_release(hw);
2ca20f79 1124 usb_put_dev(udev);
b0302aba 1125 complete(&rtlpriv->firmware_loading_complete);
2ca20f79
G		 1126 return -ENODEV;
1127}
1128EXPORT_SYMBOL(rtl_usb_probe);
1129
1130void rtl_usb_disconnect(struct usb_interface *intf)
1131{
1132 struct ieee80211_hw *hw = usb_get_intfdata(intf);
1133 struct rtl_priv *rtlpriv = rtl_priv(hw);
1134 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
1135 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw));
1136
1137 if (unlikely(!rtlpriv))
1138 return;
b0302aba
LF		 1139
1140 /* just in case driver is removed before firmware callback */
1141 wait_for_completion(&rtlpriv->firmware_loading_complete);
2ca20f79
G		 1142 /*ieee80211_unregister_hw will call ops_stop */
1143 if (rtlmac->mac80211_registered == 1) {
1144 ieee80211_unregister_hw(hw);
1145 rtlmac->mac80211_registered = 0;
1146 } else {
1147 rtl_deinit_deferred_work(hw);
1148 rtlpriv->intf_ops->adapter_stop(hw);
1149 }
1150 /*deinit rfkill */
1151 /* rtl_deinit_rfkill(hw); */
1152 rtl_usb_deinit(hw);
1153 rtl_deinit_core(hw);
a7959c13 1154 kfree(rtlpriv->usb_data);
2ca20f79
G		 1155 rtlpriv->cfg->ops->deinit_sw_leds(hw);
1156 rtlpriv->cfg->ops->deinit_sw_vars(hw);
1157 _rtl_usb_io_handler_release(hw);
1158 usb_put_dev(rtlusb->udev);
1159 usb_set_intfdata(intf, NULL);
1160 ieee80211_free_hw(hw);
1161}
1162EXPORT_SYMBOL(rtl_usb_disconnect);
1163
1164int rtl_usb_suspend(struct usb_interface *pusb_intf, pm_message_t message)
1165{
1166 return 0;
1167}
1168EXPORT_SYMBOL(rtl_usb_suspend);
1169
1170int rtl_usb_resume(struct usb_interface *pusb_intf)
1171{
1172 return 0;
1173}
1174EXPORT_SYMBOL(rtl_usb_resume);
Linux kernel - Deliverables
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