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Merge tag 'driver-core-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
[mirror_ubuntu-artful-kernel.git] / drivers / staging / rtl8188eu / os_dep / usb_ops_linux.c
1 /******************************************************************************
2 *
3 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
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 ******************************************************************************/
19 #define _USB_OPS_LINUX_C_
20
21 #include <drv_types.h>
22 #include <recv_osdep.h>
23 #include <rtw_sreset.h>
24
25 static void interrupt_handler_8188eu(struct adapter *adapt, u16 pkt_len, u8 *pbuf)
26 {
27 struct hal_data_8188e *haldata = GET_HAL_DATA(adapt);
28
29 if (pkt_len != INTERRUPT_MSG_FORMAT_LEN) {
30 DBG_88E("%s Invalid interrupt content length (%d)!\n", __func__, pkt_len);
31 return;
32 }
33
34 /* HISR */
35 memcpy(&(haldata->IntArray[0]), &(pbuf[USB_INTR_CONTENT_HISR_OFFSET]), 4);
36 memcpy(&(haldata->IntArray[1]), &(pbuf[USB_INTR_CONTENT_HISRE_OFFSET]), 4);
37
38 /* C2H Event */
39 if (pbuf[0] != 0)
40 memcpy(&(haldata->C2hArray[0]), &(pbuf[USB_INTR_CONTENT_C2H_OFFSET]), 16);
41 }
42
43 static int recvbuf2recvframe(struct adapter *adapt, struct sk_buff *pskb)
44 {
45 u8 *pbuf;
46 u8 shift_sz = 0;
47 u16 pkt_cnt;
48 u32 pkt_offset, skb_len, alloc_sz;
49 s32 transfer_len;
50 struct recv_stat *prxstat;
51 struct phy_stat *pphy_status = NULL;
52 struct sk_buff *pkt_copy = NULL;
53 struct recv_frame *precvframe = NULL;
54 struct rx_pkt_attrib *pattrib = NULL;
55 struct hal_data_8188e *haldata = GET_HAL_DATA(adapt);
56 struct recv_priv *precvpriv = &adapt->recvpriv;
57 struct __queue *pfree_recv_queue = &precvpriv->free_recv_queue;
58
59 transfer_len = (s32)pskb->len;
60 pbuf = pskb->data;
61
62 prxstat = (struct recv_stat *)pbuf;
63 pkt_cnt = (le32_to_cpu(prxstat->rxdw2) >> 16) & 0xff;
64
65 do {
66 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
67 ("recvbuf2recvframe: rxdesc=offsset 0:0x%08x, 4:0x%08x, 8:0x%08x, C:0x%08x\n",
68 prxstat->rxdw0, prxstat->rxdw1, prxstat->rxdw2, prxstat->rxdw4));
69
70 prxstat = (struct recv_stat *)pbuf;
71
72 precvframe = rtw_alloc_recvframe(pfree_recv_queue);
73 if (precvframe == NULL) {
74 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvbuf2recvframe: precvframe==NULL\n"));
75 DBG_88E("%s()-%d: rtw_alloc_recvframe() failed! RX Drop!\n", __func__, __LINE__);
76 goto _exit_recvbuf2recvframe;
77 }
78
79 INIT_LIST_HEAD(&precvframe->list);
80 precvframe->len = 0;
81
82 update_recvframe_attrib_88e(precvframe, prxstat);
83
84 pattrib = &precvframe->attrib;
85
86 if ((pattrib->crc_err) || (pattrib->icv_err)) {
87 DBG_88E("%s: RX Warning! crc_err=%d icv_err=%d, skip!\n", __func__, pattrib->crc_err, pattrib->icv_err);
88
89 rtw_free_recvframe(precvframe, pfree_recv_queue);
90 goto _exit_recvbuf2recvframe;
91 }
92
93 if ((pattrib->physt) && (pattrib->pkt_rpt_type == NORMAL_RX))
94 pphy_status = (struct phy_stat *)(pbuf + RXDESC_OFFSET);
95
96 pkt_offset = RXDESC_SIZE + pattrib->drvinfo_sz + pattrib->shift_sz + pattrib->pkt_len;
97
98 if ((pattrib->pkt_len <= 0) || (pkt_offset > transfer_len)) {
99 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("recvbuf2recvframe: pkt_len<=0\n"));
100 DBG_88E("%s()-%d: RX Warning!,pkt_len<=0 or pkt_offset> transfoer_len\n", __func__, __LINE__);
101 rtw_free_recvframe(precvframe, pfree_recv_queue);
102 goto _exit_recvbuf2recvframe;
103 }
104
105 /* Modified by Albert 20101213 */
106 /* For 8 bytes IP header alignment. */
107 if (pattrib->qos) /* Qos data, wireless lan header length is 26 */
108 shift_sz = 6;
109 else
110 shift_sz = 0;
111
112 skb_len = pattrib->pkt_len;
113
114 /* for first fragment packet, driver need allocate 1536+drvinfo_sz+RXDESC_SIZE to defrag packet. */
115 /* modify alloc_sz for recvive crc error packet by thomas 2011-06-02 */
116 if ((pattrib->mfrag == 1) && (pattrib->frag_num == 0)) {
117 if (skb_len <= 1650)
118 alloc_sz = 1664;
119 else
120 alloc_sz = skb_len + 14;
121 } else {
122 alloc_sz = skb_len;
123 /* 6 is for IP header 8 bytes alignment in QoS packet case. */
124 /* 8 is for skb->data 4 bytes alignment. */
125 alloc_sz += 14;
126 }
127
128 pkt_copy = netdev_alloc_skb(adapt->pnetdev, alloc_sz);
129 if (pkt_copy) {
130 pkt_copy->dev = adapt->pnetdev;
131 precvframe->pkt = pkt_copy;
132 precvframe->rx_head = pkt_copy->data;
133 precvframe->rx_end = pkt_copy->data + alloc_sz;
134 skb_reserve(pkt_copy, 8 - ((size_t)(pkt_copy->data) & 7));/* force pkt_copy->data at 8-byte alignment address */
135 skb_reserve(pkt_copy, shift_sz);/* force ip_hdr at 8-byte alignment address according to shift_sz. */
136 memcpy(pkt_copy->data, (pbuf + pattrib->drvinfo_sz + RXDESC_SIZE), skb_len);
137 precvframe->rx_tail = pkt_copy->data;
138 precvframe->rx_data = pkt_copy->data;
139 } else {
140 if ((pattrib->mfrag == 1) && (pattrib->frag_num == 0)) {
141 DBG_88E("recvbuf2recvframe: alloc_skb fail , drop frag frame\n");
142 rtw_free_recvframe(precvframe, pfree_recv_queue);
143 goto _exit_recvbuf2recvframe;
144 }
145 precvframe->pkt = skb_clone(pskb, GFP_ATOMIC);
146 if (precvframe->pkt) {
147 precvframe->rx_tail = pbuf + pattrib->drvinfo_sz + RXDESC_SIZE;
148 precvframe->rx_head = precvframe->rx_tail;
149 precvframe->rx_data = precvframe->rx_tail;
150 precvframe->rx_end = pbuf + pattrib->drvinfo_sz + RXDESC_SIZE + alloc_sz;
151 } else {
152 DBG_88E("recvbuf2recvframe: skb_clone fail\n");
153 rtw_free_recvframe(precvframe, pfree_recv_queue);
154 goto _exit_recvbuf2recvframe;
155 }
156 }
157
158 recvframe_put(precvframe, skb_len);
159
160 switch (haldata->UsbRxAggMode) {
161 case USB_RX_AGG_DMA:
162 case USB_RX_AGG_MIX:
163 pkt_offset = (u16)round_up(pkt_offset, 128);
164 break;
165 case USB_RX_AGG_USB:
166 pkt_offset = (u16)round_up(pkt_offset, 4);
167 break;
168 case USB_RX_AGG_DISABLE:
169 default:
170 break;
171 }
172 if (pattrib->pkt_rpt_type == NORMAL_RX) { /* Normal rx packet */
173 if (pattrib->physt)
174 update_recvframe_phyinfo_88e(precvframe, (struct phy_stat *)pphy_status);
175 if (rtw_recv_entry(precvframe) != _SUCCESS) {
176 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
177 ("recvbuf2recvframe: rtw_recv_entry(precvframe) != _SUCCESS\n"));
178 }
179 } else {
180 /* enqueue recvframe to txrtp queue */
181 if (pattrib->pkt_rpt_type == TX_REPORT1) {
182 /* CCX-TXRPT ack for xmit mgmt frames. */
183 handle_txrpt_ccx_88e(adapt, precvframe->rx_data);
184 } else if (pattrib->pkt_rpt_type == TX_REPORT2) {
185 ODM_RA_TxRPT2Handle_8188E(
186 &haldata->odmpriv,
187 precvframe->rx_data,
188 pattrib->pkt_len,
189 pattrib->MacIDValidEntry[0],
190 pattrib->MacIDValidEntry[1]
191 );
192 } else if (pattrib->pkt_rpt_type == HIS_REPORT) {
193 interrupt_handler_8188eu(adapt, pattrib->pkt_len, precvframe->rx_data);
194 }
195 rtw_free_recvframe(precvframe, pfree_recv_queue);
196 }
197 pkt_cnt--;
198 transfer_len -= pkt_offset;
199 pbuf += pkt_offset;
200 precvframe = NULL;
201 pkt_copy = NULL;
202
203 if (transfer_len > 0 && pkt_cnt == 0)
204 pkt_cnt = (le32_to_cpu(prxstat->rxdw2)>>16) & 0xff;
205
206 } while ((transfer_len > 0) && (pkt_cnt > 0));
207
208 _exit_recvbuf2recvframe:
209
210 return _SUCCESS;
211 }
212
213 unsigned int ffaddr2pipehdl(struct dvobj_priv *pdvobj, u32 addr)
214 {
215 unsigned int pipe = 0, ep_num = 0;
216 struct usb_device *pusbd = pdvobj->pusbdev;
217
218 if (addr == RECV_BULK_IN_ADDR) {
219 pipe = usb_rcvbulkpipe(pusbd, pdvobj->RtInPipe[0]);
220 } else if (addr == RECV_INT_IN_ADDR) {
221 pipe = usb_rcvbulkpipe(pusbd, pdvobj->RtInPipe[1]);
222 } else if (addr < HW_QUEUE_ENTRY) {
223 ep_num = pdvobj->Queue2Pipe[addr];
224 pipe = usb_sndbulkpipe(pusbd, ep_num);
225 }
226
227 return pipe;
228 }
229
230 static int usbctrl_vendorreq(struct adapter *adapt, u8 request, u16 value, u16 index, void *pdata, u16 len, u8 requesttype)
231 {
232 struct dvobj_priv *dvobjpriv = adapter_to_dvobj(adapt);
233 struct usb_device *udev = dvobjpriv->pusbdev;
234 unsigned int pipe;
235 int status = 0;
236 u8 reqtype;
237 u8 *pIo_buf;
238 int vendorreq_times = 0;
239
240 if ((adapt->bSurpriseRemoved) || (adapt->pwrctrlpriv.pnp_bstop_trx)) {
241 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usbctrl_vendorreq:(adapt->bSurpriseRemoved ||adapter->pwrctrlpriv.pnp_bstop_trx)!!!\n"));
242 status = -EPERM;
243 goto exit;
244 }
245
246 if (len > MAX_VENDOR_REQ_CMD_SIZE) {
247 DBG_88E("[%s] Buffer len error ,vendor request failed\n", __func__);
248 status = -EINVAL;
249 goto exit;
250 }
251
252 _enter_critical_mutex(&dvobjpriv->usb_vendor_req_mutex, NULL);
253
254 /* Acquire IO memory for vendorreq */
255 pIo_buf = dvobjpriv->usb_vendor_req_buf;
256
257 if (pIo_buf == NULL) {
258 DBG_88E("[%s] pIo_buf == NULL\n", __func__);
259 status = -ENOMEM;
260 goto release_mutex;
261 }
262
263 while (++vendorreq_times <= MAX_USBCTRL_VENDORREQ_TIMES) {
264 memset(pIo_buf, 0, len);
265
266 if (requesttype == 0x01) {
267 pipe = usb_rcvctrlpipe(udev, 0);/* read_in */
268 reqtype = REALTEK_USB_VENQT_READ;
269 } else {
270 pipe = usb_sndctrlpipe(udev, 0);/* write_out */
271 reqtype = REALTEK_USB_VENQT_WRITE;
272 memcpy(pIo_buf, pdata, len);
273 }
274
275 status = usb_control_msg(udev, pipe, request, reqtype, value, index, pIo_buf, len, RTW_USB_CONTROL_MSG_TIMEOUT);
276
277 if (status == len) { /* Success this control transfer. */
278 if (requesttype == 0x01)
279 memcpy(pdata, pIo_buf, len);
280 } else { /* error cases */
281 DBG_88E("reg 0x%x, usb %s %u fail, status:%d value=0x%x, vendorreq_times:%d\n",
282 value, (requesttype == 0x01) ? "read" : "write",
283 len, status, *(u32 *)pdata, vendorreq_times);
284
285 if (status < 0) {
286 if (status == (-ESHUTDOWN) || status == -ENODEV) {
287 adapt->bSurpriseRemoved = true;
288 } else {
289 struct hal_data_8188e *haldata = GET_HAL_DATA(adapt);
290 haldata->srestpriv.Wifi_Error_Status = USB_VEN_REQ_CMD_FAIL;
291 }
292 } else { /* status != len && status >= 0 */
293 if (status > 0) {
294 if (requesttype == 0x01) {
295 /* For Control read transfer, we have to copy the read data from pIo_buf to pdata. */
296 memcpy(pdata, pIo_buf, len);
297 }
298 }
299 }
300
301 }
302
303 /* firmware download is checksumed, don't retry */
304 if ((value >= FW_8188E_START_ADDRESS && value <= FW_8188E_END_ADDRESS) || status == len)
305 break;
306 }
307 release_mutex:
308 mutex_unlock(&dvobjpriv->usb_vendor_req_mutex);
309 exit:
310 return status;
311 }
312
313 u8 usb_read8(struct adapter *adapter, u32 addr)
314 {
315 u8 request;
316 u8 requesttype;
317 u16 wvalue;
318 u16 index;
319 u16 len;
320 u8 data = 0;
321
322
323 request = 0x05;
324 requesttype = 0x01;/* read_in */
325 index = 0;/* n/a */
326
327 wvalue = (u16)(addr&0x0000ffff);
328 len = 1;
329
330 usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
331
332
333 return data;
334
335 }
336
337 u16 usb_read16(struct adapter *adapter, u32 addr)
338 {
339 u8 request;
340 u8 requesttype;
341 u16 wvalue;
342 u16 index;
343 u16 len;
344 __le32 data;
345
346 request = 0x05;
347 requesttype = 0x01;/* read_in */
348 index = 0;/* n/a */
349 wvalue = (u16)(addr&0x0000ffff);
350 len = 2;
351 usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
352
353 return (u16)(le32_to_cpu(data)&0xffff);
354 }
355
356 u32 usb_read32(struct adapter *adapter, u32 addr)
357 {
358 u8 request;
359 u8 requesttype;
360 u16 wvalue;
361 u16 index;
362 u16 len;
363 __le32 data;
364
365
366 request = 0x05;
367 requesttype = 0x01;/* read_in */
368 index = 0;/* n/a */
369
370 wvalue = (u16)(addr&0x0000ffff);
371 len = 4;
372
373 usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
374
375
376 return le32_to_cpu(data);
377 }
378
379 static void usb_read_port_complete(struct urb *purb, struct pt_regs *regs)
380 {
381 struct recv_buf *precvbuf = (struct recv_buf *)purb->context;
382 struct adapter *adapt = (struct adapter *)precvbuf->adapter;
383 struct recv_priv *precvpriv = &adapt->recvpriv;
384
385 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete!!!\n"));
386
387 precvpriv->rx_pending_cnt--;
388
389 if (adapt->bSurpriseRemoved || adapt->bDriverStopped || adapt->bReadPortCancel) {
390 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
391 ("usb_read_port_complete:bDriverStopped(%d) OR bSurpriseRemoved(%d)\n",
392 adapt->bDriverStopped, adapt->bSurpriseRemoved));
393
394 precvbuf->reuse = true;
395 DBG_88E("%s() RX Warning! bDriverStopped(%d) OR bSurpriseRemoved(%d) bReadPortCancel(%d)\n",
396 __func__, adapt->bDriverStopped,
397 adapt->bSurpriseRemoved, adapt->bReadPortCancel);
398 return;
399 }
400
401 if (purb->status == 0) { /* SUCCESS */
402 if ((purb->actual_length > MAX_RECVBUF_SZ) || (purb->actual_length < RXDESC_SIZE)) {
403 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
404 ("usb_read_port_complete: (purb->actual_length > MAX_RECVBUF_SZ) || (purb->actual_length < RXDESC_SIZE)\n"));
405 precvbuf->reuse = true;
406 usb_read_port(adapt, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
407 DBG_88E("%s()-%d: RX Warning!\n", __func__, __LINE__);
408 } else {
409 skb_put(precvbuf->pskb, purb->actual_length);
410 skb_queue_tail(&precvpriv->rx_skb_queue, precvbuf->pskb);
411
412 if (skb_queue_len(&precvpriv->rx_skb_queue) <= 1)
413 tasklet_schedule(&precvpriv->recv_tasklet);
414
415 precvbuf->pskb = NULL;
416 precvbuf->reuse = false;
417 usb_read_port(adapt, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
418 }
419 } else {
420 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete : purb->status(%d) != 0\n", purb->status));
421
422 DBG_88E("###=> usb_read_port_complete => urb status(%d)\n", purb->status);
423 skb_put(precvbuf->pskb, purb->actual_length);
424 precvbuf->pskb = NULL;
425
426 switch (purb->status) {
427 case -EINVAL:
428 case -EPIPE:
429 case -ENODEV:
430 case -ESHUTDOWN:
431 adapt->bSurpriseRemoved = true;
432 case -ENOENT:
433 adapt->bDriverStopped = true;
434 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete:bDriverStopped=true\n"));
435 break;
436 case -EPROTO:
437 case -EOVERFLOW:
438 {
439 struct hal_data_8188e *haldata = GET_HAL_DATA(adapt);
440 haldata->srestpriv.Wifi_Error_Status = USB_READ_PORT_FAIL;
441 }
442 precvbuf->reuse = true;
443 usb_read_port(adapt, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
444 break;
445 case -EINPROGRESS:
446 DBG_88E("ERROR: URB IS IN PROGRESS!\n");
447 break;
448 default:
449 break;
450 }
451 }
452 }
453
454 u32 usb_read_port(struct adapter *adapter, u32 addr, u32 cnt, u8 *rmem)
455 {
456 struct urb *purb = NULL;
457 struct recv_buf *precvbuf = (struct recv_buf *)rmem;
458 struct dvobj_priv *pdvobj = adapter_to_dvobj(adapter);
459 struct recv_priv *precvpriv = &adapter->recvpriv;
460 struct usb_device *pusbd = pdvobj->pusbdev;
461 int err;
462 unsigned int pipe;
463 size_t tmpaddr = 0;
464 size_t alignment = 0;
465 u32 ret = _SUCCESS;
466
467
468 if (adapter->bDriverStopped || adapter->bSurpriseRemoved ||
469 adapter->pwrctrlpriv.pnp_bstop_trx) {
470 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
471 ("usb_read_port:(adapt->bDriverStopped ||adapt->bSurpriseRemoved ||adapter->pwrctrlpriv.pnp_bstop_trx)!!!\n"));
472 return _FAIL;
473 }
474
475 if (!precvbuf) {
476 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
477 ("usb_read_port:precvbuf==NULL\n"));
478 return _FAIL;
479 }
480
481 if ((!precvbuf->reuse) || (precvbuf->pskb == NULL)) {
482 precvbuf->pskb = skb_dequeue(&precvpriv->free_recv_skb_queue);
483 if (NULL != precvbuf->pskb)
484 precvbuf->reuse = true;
485 }
486
487 /* re-assign for linux based on skb */
488 if ((!precvbuf->reuse) || (precvbuf->pskb == NULL)) {
489 precvbuf->pskb = netdev_alloc_skb(adapter->pnetdev, MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ);
490 if (precvbuf->pskb == NULL) {
491 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("init_recvbuf(): alloc_skb fail!\n"));
492 DBG_88E("#### usb_read_port() alloc_skb fail!#####\n");
493 return _FAIL;
494 }
495
496 tmpaddr = (size_t)precvbuf->pskb->data;
497 alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1);
498 skb_reserve(precvbuf->pskb, (RECVBUFF_ALIGN_SZ - alignment));
499 } else { /* reuse skb */
500 precvbuf->reuse = false;
501 }
502
503 precvpriv->rx_pending_cnt++;
504
505 purb = precvbuf->purb;
506
507 /* translate DMA FIFO addr to pipehandle */
508 pipe = ffaddr2pipehdl(pdvobj, addr);
509
510 usb_fill_bulk_urb(purb, pusbd, pipe,
511 precvbuf->pskb->data,
512 MAX_RECVBUF_SZ,
513 usb_read_port_complete,
514 precvbuf);/* context is precvbuf */
515
516 err = usb_submit_urb(purb, GFP_ATOMIC);
517 if ((err) && (err != (-EPERM))) {
518 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
519 ("cannot submit rx in-token(err=0x%.8x), URB_STATUS =0x%.8x",
520 err, purb->status));
521 DBG_88E("cannot submit rx in-token(err = 0x%08x),urb_status = %d\n",
522 err, purb->status);
523 ret = _FAIL;
524 }
525
526 return ret;
527 }
528
529 void usb_read_port_cancel(struct adapter *padapter)
530 {
531 int i;
532 struct recv_buf *precvbuf;
533 precvbuf = (struct recv_buf *)padapter->recvpriv.precv_buf;
534
535 DBG_88E("%s\n", __func__);
536
537 padapter->bReadPortCancel = true;
538
539 for (i = 0; i < NR_RECVBUFF; i++) {
540 precvbuf->reuse = true;
541 if (precvbuf->purb)
542 usb_kill_urb(precvbuf->purb);
543 precvbuf++;
544 }
545 }
546
547 int usb_write8(struct adapter *adapter, u32 addr, u8 val)
548 {
549 u8 request;
550 u8 requesttype;
551 u16 wvalue;
552 u16 index;
553 u16 len;
554 u8 data;
555 int ret;
556
557 request = 0x05;
558 requesttype = 0x00;/* write_out */
559 index = 0;/* n/a */
560 wvalue = (u16)(addr&0x0000ffff);
561 len = 1;
562 data = val;
563 ret = usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
564 return ret;
565 }
566
567 int usb_write16(struct adapter *adapter, u32 addr, u16 val)
568 {
569 u8 request;
570 u8 requesttype;
571 u16 wvalue;
572 u16 index;
573 u16 len;
574 __le32 data;
575 int ret;
576
577
578 request = 0x05;
579 requesttype = 0x00;/* write_out */
580 index = 0;/* n/a */
581
582 wvalue = (u16)(addr&0x0000ffff);
583 len = 2;
584
585 data = cpu_to_le32(val & 0x0000ffff);
586
587 ret = usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
588
589
590 return ret;
591 }
592
593 int usb_write32(struct adapter *adapter, u32 addr, u32 val)
594 {
595 u8 request;
596 u8 requesttype;
597 u16 wvalue;
598 u16 index;
599 u16 len;
600 __le32 data;
601 int ret;
602
603
604 request = 0x05;
605 requesttype = 0x00;/* write_out */
606 index = 0;/* n/a */
607
608 wvalue = (u16)(addr&0x0000ffff);
609 len = 4;
610 data = cpu_to_le32(val);
611
612 ret = usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
613
614
615 return ret;
616 }
617
618 static void usb_write_port_complete(struct urb *purb, struct pt_regs *regs)
619 {
620 struct xmit_buf *pxmitbuf = (struct xmit_buf *)purb->context;
621 struct adapter *padapter = pxmitbuf->padapter;
622 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
623
624 switch (pxmitbuf->flags) {
625 case VO_QUEUE_INX:
626 pxmitpriv->voq_cnt--;
627 break;
628 case VI_QUEUE_INX:
629 pxmitpriv->viq_cnt--;
630 break;
631 case BE_QUEUE_INX:
632 pxmitpriv->beq_cnt--;
633 break;
634 case BK_QUEUE_INX:
635 pxmitpriv->bkq_cnt--;
636 break;
637 case HIGH_QUEUE_INX:
638 #ifdef CONFIG_88EU_AP_MODE
639 rtw_chk_hi_queue_cmd(padapter);
640 #endif
641 break;
642 default:
643 break;
644 }
645
646 if (padapter->bSurpriseRemoved || padapter->bDriverStopped ||
647 padapter->bWritePortCancel) {
648 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
649 ("usb_write_port_complete:bDriverStopped(%d) OR bSurpriseRemoved(%d)",
650 padapter->bDriverStopped, padapter->bSurpriseRemoved));
651 DBG_88E("%s(): TX Warning! bDriverStopped(%d) OR bSurpriseRemoved(%d) bWritePortCancel(%d) pxmitbuf->ext_tag(%x)\n",
652 __func__, padapter->bDriverStopped,
653 padapter->bSurpriseRemoved, padapter->bReadPortCancel,
654 pxmitbuf->ext_tag);
655
656 goto check_completion;
657 }
658
659 if (purb->status) {
660 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete : purb->status(%d) != 0\n", purb->status));
661 DBG_88E("###=> urb_write_port_complete status(%d)\n", purb->status);
662 if ((purb->status == -EPIPE) || (purb->status == -EPROTO)) {
663 sreset_set_wifi_error_status(padapter, USB_WRITE_PORT_FAIL);
664 } else if (purb->status == -EINPROGRESS) {
665 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete: EINPROGESS\n"));
666 goto check_completion;
667 } else if (purb->status == -ENOENT) {
668 DBG_88E("%s: -ENOENT\n", __func__);
669 goto check_completion;
670 } else if (purb->status == -ECONNRESET) {
671 DBG_88E("%s: -ECONNRESET\n", __func__);
672 goto check_completion;
673 } else if (purb->status == -ESHUTDOWN) {
674 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete: ESHUTDOWN\n"));
675 padapter->bDriverStopped = true;
676 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete:bDriverStopped = true\n"));
677 goto check_completion;
678 } else {
679 padapter->bSurpriseRemoved = true;
680 DBG_88E("bSurpriseRemoved = true\n");
681 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete:bSurpriseRemoved = true\n"));
682
683 goto check_completion;
684 }
685 }
686
687 check_completion:
688 rtw_sctx_done_err(&pxmitbuf->sctx,
689 purb->status ? RTW_SCTX_DONE_WRITE_PORT_ERR :
690 RTW_SCTX_DONE_SUCCESS);
691
692 rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
693
694 tasklet_hi_schedule(&pxmitpriv->xmit_tasklet);
695 }
696
697 u32 usb_write_port(struct adapter *padapter, u32 addr, u32 cnt, u8 *wmem)
698 {
699 unsigned long irqL;
700 unsigned int pipe;
701 int status;
702 u32 ret = _FAIL;
703 struct urb *purb = NULL;
704 struct dvobj_priv *pdvobj = adapter_to_dvobj(padapter);
705 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
706 struct xmit_buf *pxmitbuf = (struct xmit_buf *)wmem;
707 struct xmit_frame *pxmitframe = (struct xmit_frame *)pxmitbuf->priv_data;
708 struct usb_device *pusbd = pdvobj->pusbdev;
709
710
711 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("+usb_write_port\n"));
712
713 if ((padapter->bDriverStopped) || (padapter->bSurpriseRemoved) ||
714 (padapter->pwrctrlpriv.pnp_bstop_trx)) {
715 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
716 ("usb_write_port:( padapter->bDriverStopped ||padapter->bSurpriseRemoved ||adapter->pwrctrlpriv.pnp_bstop_trx)!!!\n"));
717 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_TX_DENY);
718 goto exit;
719 }
720
721 spin_lock_irqsave(&pxmitpriv->lock, irqL);
722
723 switch (addr) {
724 case VO_QUEUE_INX:
725 pxmitpriv->voq_cnt++;
726 pxmitbuf->flags = VO_QUEUE_INX;
727 break;
728 case VI_QUEUE_INX:
729 pxmitpriv->viq_cnt++;
730 pxmitbuf->flags = VI_QUEUE_INX;
731 break;
732 case BE_QUEUE_INX:
733 pxmitpriv->beq_cnt++;
734 pxmitbuf->flags = BE_QUEUE_INX;
735 break;
736 case BK_QUEUE_INX:
737 pxmitpriv->bkq_cnt++;
738 pxmitbuf->flags = BK_QUEUE_INX;
739 break;
740 case HIGH_QUEUE_INX:
741 pxmitbuf->flags = HIGH_QUEUE_INX;
742 break;
743 default:
744 pxmitbuf->flags = MGT_QUEUE_INX;
745 break;
746 }
747
748 spin_unlock_irqrestore(&pxmitpriv->lock, irqL);
749
750 purb = pxmitbuf->pxmit_urb[0];
751
752 /* translate DMA FIFO addr to pipehandle */
753 pipe = ffaddr2pipehdl(pdvobj, addr);
754
755 usb_fill_bulk_urb(purb, pusbd, pipe,
756 pxmitframe->buf_addr, /* pxmitbuf->pbuf */
757 cnt,
758 usb_write_port_complete,
759 pxmitbuf);/* context is pxmitbuf */
760
761 status = usb_submit_urb(purb, GFP_ATOMIC);
762 if (status) {
763 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_WRITE_PORT_ERR);
764 DBG_88E("usb_write_port, status =%d\n", status);
765 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port(): usb_submit_urb, status =%x\n", status));
766
767 switch (status) {
768 case -ENODEV:
769 padapter->bDriverStopped = true;
770 break;
771 default:
772 break;
773 }
774 goto exit;
775 }
776
777 ret = _SUCCESS;
778
779 /* We add the URB_ZERO_PACKET flag to urb so that the host will send the zero packet automatically. */
780
781 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("-usb_write_port\n"));
782
783 exit:
784 if (ret != _SUCCESS)
785 rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
786 return ret;
787 }
788
789 void usb_write_port_cancel(struct adapter *padapter)
790 {
791 int i, j;
792 struct xmit_buf *pxmitbuf = (struct xmit_buf *)padapter->xmitpriv.pxmitbuf;
793
794 DBG_88E("%s\n", __func__);
795
796 padapter->bWritePortCancel = true;
797
798 for (i = 0; i < NR_XMITBUFF; i++) {
799 for (j = 0; j < 8; j++) {
800 if (pxmitbuf->pxmit_urb[j])
801 usb_kill_urb(pxmitbuf->pxmit_urb[j]);
802 }
803 pxmitbuf++;
804 }
805
806 pxmitbuf = (struct xmit_buf *)padapter->xmitpriv.pxmit_extbuf;
807 for (i = 0; i < NR_XMIT_EXTBUFF; i++) {
808 for (j = 0; j < 8; j++) {
809 if (pxmitbuf->pxmit_urb[j])
810 usb_kill_urb(pxmitbuf->pxmit_urb[j]);
811 }
812 pxmitbuf++;
813 }
814 }
815
816 void rtl8188eu_recv_tasklet(void *priv)
817 {
818 struct sk_buff *pskb;
819 struct adapter *adapt = priv;
820 struct recv_priv *precvpriv = &adapt->recvpriv;
821
822 while (NULL != (pskb = skb_dequeue(&precvpriv->rx_skb_queue))) {
823 if ((adapt->bDriverStopped) || (adapt->bSurpriseRemoved)) {
824 DBG_88E("recv_tasklet => bDriverStopped or bSurpriseRemoved\n");
825 dev_kfree_skb_any(pskb);
826 break;
827 }
828 recvbuf2recvframe(adapt, pskb);
829 skb_reset_tail_pointer(pskb);
830 pskb->len = 0;
831 skb_queue_tail(&precvpriv->free_recv_skb_queue, pskb);
832 }
833 }
834
835 void rtl8188eu_xmit_tasklet(void *priv)
836 {
837 int ret = false;
838 struct adapter *adapt = priv;
839 struct xmit_priv *pxmitpriv = &adapt->xmitpriv;
840
841 if (check_fwstate(&adapt->mlmepriv, _FW_UNDER_SURVEY))
842 return;
843
844 while (1) {
845 if ((adapt->bDriverStopped) ||
846 (adapt->bSurpriseRemoved) ||
847 (adapt->bWritePortCancel)) {
848 DBG_88E("xmit_tasklet => bDriverStopped or bSurpriseRemoved or bWritePortCancel\n");
849 break;
850 }
851
852 ret = rtl8188eu_xmitframe_complete(adapt, pxmitpriv, NULL);
853
854 if (!ret)
855 break;
856 }
857 }
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