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[deliverable/linux.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 if (mutex_lock_interruptible(&dvobjpriv->usb_vendor_req_mutex)) {
253 status = -ERESTARTSYS;
254 goto exit;
255 }
256
257 /* Acquire IO memory for vendorreq */
258 pIo_buf = dvobjpriv->usb_vendor_req_buf;
259
260 if (pIo_buf == NULL) {
261 DBG_88E("[%s] pIo_buf == NULL\n", __func__);
262 status = -ENOMEM;
263 goto release_mutex;
264 }
265
266 while (++vendorreq_times <= MAX_USBCTRL_VENDORREQ_TIMES) {
267 memset(pIo_buf, 0, len);
268
269 if (requesttype == 0x01) {
270 pipe = usb_rcvctrlpipe(udev, 0);/* read_in */
271 reqtype = REALTEK_USB_VENQT_READ;
272 } else {
273 pipe = usb_sndctrlpipe(udev, 0);/* write_out */
274 reqtype = REALTEK_USB_VENQT_WRITE;
275 memcpy(pIo_buf, pdata, len);
276 }
277
278 status = usb_control_msg(udev, pipe, request, reqtype, value, index, pIo_buf, len, RTW_USB_CONTROL_MSG_TIMEOUT);
279
280 if (status == len) { /* Success this control transfer. */
281 if (requesttype == 0x01)
282 memcpy(pdata, pIo_buf, len);
283 } else { /* error cases */
284 DBG_88E("reg 0x%x, usb %s %u fail, status:%d value=0x%x, vendorreq_times:%d\n",
285 value, (requesttype == 0x01) ? "read" : "write",
286 len, status, *(u32 *)pdata, vendorreq_times);
287
288 if (status < 0) {
289 if (status == (-ESHUTDOWN) || status == -ENODEV) {
290 adapt->bSurpriseRemoved = true;
291 } else {
292 struct hal_data_8188e *haldata = GET_HAL_DATA(adapt);
293 haldata->srestpriv.Wifi_Error_Status = USB_VEN_REQ_CMD_FAIL;
294 }
295 } else { /* status != len && status >= 0 */
296 if (status > 0) {
297 if (requesttype == 0x01) {
298 /* For Control read transfer, we have to copy the read data from pIo_buf to pdata. */
299 memcpy(pdata, pIo_buf, len);
300 }
301 }
302 }
303
304 }
305
306 /* firmware download is checksumed, don't retry */
307 if ((value >= FW_8188E_START_ADDRESS && value <= FW_8188E_END_ADDRESS) || status == len)
308 break;
309 }
310 release_mutex:
311 mutex_unlock(&dvobjpriv->usb_vendor_req_mutex);
312 exit:
313 return status;
314 }
315
316 u8 usb_read8(struct adapter *adapter, u32 addr)
317 {
318 u8 request;
319 u8 requesttype;
320 u16 wvalue;
321 u16 index;
322 u16 len;
323 u8 data = 0;
324
325
326 request = 0x05;
327 requesttype = 0x01;/* read_in */
328 index = 0;/* n/a */
329
330 wvalue = (u16)(addr&0x0000ffff);
331 len = 1;
332
333 usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
334
335
336 return data;
337
338 }
339
340 u16 usb_read16(struct adapter *adapter, u32 addr)
341 {
342 u8 request;
343 u8 requesttype;
344 u16 wvalue;
345 u16 index;
346 u16 len;
347 __le32 data;
348
349 request = 0x05;
350 requesttype = 0x01;/* read_in */
351 index = 0;/* n/a */
352 wvalue = (u16)(addr&0x0000ffff);
353 len = 2;
354 usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
355
356 return (u16)(le32_to_cpu(data)&0xffff);
357 }
358
359 u32 usb_read32(struct adapter *adapter, u32 addr)
360 {
361 u8 request;
362 u8 requesttype;
363 u16 wvalue;
364 u16 index;
365 u16 len;
366 __le32 data;
367
368
369 request = 0x05;
370 requesttype = 0x01;/* read_in */
371 index = 0;/* n/a */
372
373 wvalue = (u16)(addr&0x0000ffff);
374 len = 4;
375
376 usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
377
378
379 return le32_to_cpu(data);
380 }
381
382 static void usb_read_port_complete(struct urb *purb, struct pt_regs *regs)
383 {
384 struct recv_buf *precvbuf = (struct recv_buf *)purb->context;
385 struct adapter *adapt = (struct adapter *)precvbuf->adapter;
386 struct recv_priv *precvpriv = &adapt->recvpriv;
387
388 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete!!!\n"));
389
390 precvpriv->rx_pending_cnt--;
391
392 if (adapt->bSurpriseRemoved || adapt->bDriverStopped || adapt->bReadPortCancel) {
393 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
394 ("usb_read_port_complete:bDriverStopped(%d) OR bSurpriseRemoved(%d)\n",
395 adapt->bDriverStopped, adapt->bSurpriseRemoved));
396
397 precvbuf->reuse = true;
398 DBG_88E("%s() RX Warning! bDriverStopped(%d) OR bSurpriseRemoved(%d) bReadPortCancel(%d)\n",
399 __func__, adapt->bDriverStopped,
400 adapt->bSurpriseRemoved, adapt->bReadPortCancel);
401 return;
402 }
403
404 if (purb->status == 0) { /* SUCCESS */
405 if ((purb->actual_length > MAX_RECVBUF_SZ) || (purb->actual_length < RXDESC_SIZE)) {
406 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
407 ("usb_read_port_complete: (purb->actual_length > MAX_RECVBUF_SZ) || (purb->actual_length < RXDESC_SIZE)\n"));
408 precvbuf->reuse = true;
409 usb_read_port(adapt, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
410 DBG_88E("%s()-%d: RX Warning!\n", __func__, __LINE__);
411 } else {
412 skb_put(precvbuf->pskb, purb->actual_length);
413 skb_queue_tail(&precvpriv->rx_skb_queue, precvbuf->pskb);
414
415 if (skb_queue_len(&precvpriv->rx_skb_queue) <= 1)
416 tasklet_schedule(&precvpriv->recv_tasklet);
417
418 precvbuf->pskb = NULL;
419 precvbuf->reuse = false;
420 usb_read_port(adapt, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
421 }
422 } else {
423 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete : purb->status(%d) != 0\n", purb->status));
424
425 DBG_88E("###=> usb_read_port_complete => urb status(%d)\n", purb->status);
426 skb_put(precvbuf->pskb, purb->actual_length);
427 precvbuf->pskb = NULL;
428
429 switch (purb->status) {
430 case -EINVAL:
431 case -EPIPE:
432 case -ENODEV:
433 case -ESHUTDOWN:
434 adapt->bSurpriseRemoved = true;
435 case -ENOENT:
436 adapt->bDriverStopped = true;
437 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete:bDriverStopped=true\n"));
438 break;
439 case -EPROTO:
440 case -EOVERFLOW:
441 {
442 struct hal_data_8188e *haldata = GET_HAL_DATA(adapt);
443 haldata->srestpriv.Wifi_Error_Status = USB_READ_PORT_FAIL;
444 }
445 precvbuf->reuse = true;
446 usb_read_port(adapt, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
447 break;
448 case -EINPROGRESS:
449 DBG_88E("ERROR: URB IS IN PROGRESS!\n");
450 break;
451 default:
452 break;
453 }
454 }
455 }
456
457 u32 usb_read_port(struct adapter *adapter, u32 addr, u32 cnt, u8 *rmem)
458 {
459 struct urb *purb = NULL;
460 struct recv_buf *precvbuf = (struct recv_buf *)rmem;
461 struct dvobj_priv *pdvobj = adapter_to_dvobj(adapter);
462 struct recv_priv *precvpriv = &adapter->recvpriv;
463 struct usb_device *pusbd = pdvobj->pusbdev;
464 int err;
465 unsigned int pipe;
466 size_t tmpaddr = 0;
467 size_t alignment = 0;
468 u32 ret = _SUCCESS;
469
470
471 if (adapter->bDriverStopped || adapter->bSurpriseRemoved ||
472 adapter->pwrctrlpriv.pnp_bstop_trx) {
473 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
474 ("usb_read_port:(adapt->bDriverStopped ||adapt->bSurpriseRemoved ||adapter->pwrctrlpriv.pnp_bstop_trx)!!!\n"));
475 return _FAIL;
476 }
477
478 if (!precvbuf) {
479 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
480 ("usb_read_port:precvbuf==NULL\n"));
481 return _FAIL;
482 }
483
484 if ((!precvbuf->reuse) || (precvbuf->pskb == NULL)) {
485 precvbuf->pskb = skb_dequeue(&precvpriv->free_recv_skb_queue);
486 if (NULL != precvbuf->pskb)
487 precvbuf->reuse = true;
488 }
489
490 /* re-assign for linux based on skb */
491 if ((!precvbuf->reuse) || (precvbuf->pskb == NULL)) {
492 precvbuf->pskb = netdev_alloc_skb(adapter->pnetdev, MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ);
493 if (precvbuf->pskb == NULL) {
494 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("init_recvbuf(): alloc_skb fail!\n"));
495 DBG_88E("#### usb_read_port() alloc_skb fail!#####\n");
496 return _FAIL;
497 }
498
499 tmpaddr = (size_t)precvbuf->pskb->data;
500 alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1);
501 skb_reserve(precvbuf->pskb, (RECVBUFF_ALIGN_SZ - alignment));
502 } else { /* reuse skb */
503 precvbuf->reuse = false;
504 }
505
506 precvpriv->rx_pending_cnt++;
507
508 purb = precvbuf->purb;
509
510 /* translate DMA FIFO addr to pipehandle */
511 pipe = ffaddr2pipehdl(pdvobj, addr);
512
513 usb_fill_bulk_urb(purb, pusbd, pipe,
514 precvbuf->pskb->data,
515 MAX_RECVBUF_SZ,
516 usb_read_port_complete,
517 precvbuf);/* context is precvbuf */
518
519 err = usb_submit_urb(purb, GFP_ATOMIC);
520 if ((err) && (err != (-EPERM))) {
521 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
522 ("cannot submit rx in-token(err=0x%.8x), URB_STATUS =0x%.8x",
523 err, purb->status));
524 DBG_88E("cannot submit rx in-token(err = 0x%08x),urb_status = %d\n",
525 err, purb->status);
526 ret = _FAIL;
527 }
528
529 return ret;
530 }
531
532 void usb_read_port_cancel(struct adapter *padapter)
533 {
534 int i;
535 struct recv_buf *precvbuf;
536
537 precvbuf = (struct recv_buf *)padapter->recvpriv.precv_buf;
538
539 DBG_88E("%s\n", __func__);
540
541 padapter->bReadPortCancel = true;
542
543 for (i = 0; i < NR_RECVBUFF; i++) {
544 precvbuf->reuse = true;
545 if (precvbuf->purb)
546 usb_kill_urb(precvbuf->purb);
547 precvbuf++;
548 }
549 }
550
551 int usb_write8(struct adapter *adapter, u32 addr, u8 val)
552 {
553 u8 request;
554 u8 requesttype;
555 u16 wvalue;
556 u16 index;
557 u16 len;
558 u8 data;
559
560 request = 0x05;
561 requesttype = 0x00;/* write_out */
562 index = 0;/* n/a */
563 wvalue = (u16)(addr&0x0000ffff);
564 len = 1;
565 data = val;
566 return usbctrl_vendorreq(adapter, request, wvalue,
567 index, &data, len, requesttype);
568 }
569
570 int usb_write16(struct adapter *adapter, u32 addr, u16 val)
571 {
572 u8 request;
573 u8 requesttype;
574 u16 wvalue;
575 u16 index;
576 u16 len;
577 __le32 data;
578
579
580 request = 0x05;
581 requesttype = 0x00;/* write_out */
582 index = 0;/* n/a */
583
584 wvalue = (u16)(addr&0x0000ffff);
585 len = 2;
586
587 data = cpu_to_le32(val & 0x0000ffff);
588
589 return usbctrl_vendorreq(adapter, request, wvalue,
590 index, &data, len, requesttype);
591
592
593 }
594
595 int usb_write32(struct adapter *adapter, u32 addr, u32 val)
596 {
597 u8 request;
598 u8 requesttype;
599 u16 wvalue;
600 u16 index;
601 u16 len;
602 __le32 data;
603
604
605 request = 0x05;
606 requesttype = 0x00;/* write_out */
607 index = 0;/* n/a */
608
609 wvalue = (u16)(addr&0x0000ffff);
610 len = 4;
611 data = cpu_to_le32(val);
612
613 return usbctrl_vendorreq(adapter, request, wvalue,
614 index, &data, len, requesttype);
615
616
617 }
618
619 static void usb_write_port_complete(struct urb *purb, struct pt_regs *regs)
620 {
621 struct xmit_buf *pxmitbuf = (struct xmit_buf *)purb->context;
622 struct adapter *padapter = pxmitbuf->padapter;
623 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
624
625 switch (pxmitbuf->flags) {
626 case VO_QUEUE_INX:
627 pxmitpriv->voq_cnt--;
628 break;
629 case VI_QUEUE_INX:
630 pxmitpriv->viq_cnt--;
631 break;
632 case BE_QUEUE_INX:
633 pxmitpriv->beq_cnt--;
634 break;
635 case BK_QUEUE_INX:
636 pxmitpriv->bkq_cnt--;
637 break;
638 case HIGH_QUEUE_INX:
639 #ifdef CONFIG_88EU_AP_MODE
640 rtw_chk_hi_queue_cmd(padapter);
641 #endif
642 break;
643 default:
644 break;
645 }
646
647 if (padapter->bSurpriseRemoved || padapter->bDriverStopped ||
648 padapter->bWritePortCancel) {
649 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
650 ("usb_write_port_complete:bDriverStopped(%d) OR bSurpriseRemoved(%d)",
651 padapter->bDriverStopped, padapter->bSurpriseRemoved));
652 DBG_88E("%s(): TX Warning! bDriverStopped(%d) OR bSurpriseRemoved(%d) bWritePortCancel(%d) pxmitbuf->ext_tag(%x)\n",
653 __func__, padapter->bDriverStopped,
654 padapter->bSurpriseRemoved, padapter->bReadPortCancel,
655 pxmitbuf->ext_tag);
656
657 goto check_completion;
658 }
659
660 if (purb->status) {
661 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete : purb->status(%d) != 0\n", purb->status));
662 DBG_88E("###=> urb_write_port_complete status(%d)\n", purb->status);
663 if ((purb->status == -EPIPE) || (purb->status == -EPROTO)) {
664 sreset_set_wifi_error_status(padapter, USB_WRITE_PORT_FAIL);
665 } else if (purb->status == -EINPROGRESS) {
666 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete: EINPROGESS\n"));
667 goto check_completion;
668 } else if (purb->status == -ENOENT) {
669 DBG_88E("%s: -ENOENT\n", __func__);
670 goto check_completion;
671 } else if (purb->status == -ECONNRESET) {
672 DBG_88E("%s: -ECONNRESET\n", __func__);
673 goto check_completion;
674 } else if (purb->status == -ESHUTDOWN) {
675 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete: ESHUTDOWN\n"));
676 padapter->bDriverStopped = true;
677 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete:bDriverStopped = true\n"));
678 goto check_completion;
679 } else {
680 padapter->bSurpriseRemoved = true;
681 DBG_88E("bSurpriseRemoved = true\n");
682 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete:bSurpriseRemoved = true\n"));
683
684 goto check_completion;
685 }
686 }
687
688 check_completion:
689 rtw_sctx_done_err(&pxmitbuf->sctx,
690 purb->status ? RTW_SCTX_DONE_WRITE_PORT_ERR :
691 RTW_SCTX_DONE_SUCCESS);
692
693 rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
694
695 tasklet_hi_schedule(&pxmitpriv->xmit_tasklet);
696 }
697
698 u32 usb_write_port(struct adapter *padapter, u32 addr, u32 cnt, u8 *wmem)
699 {
700 unsigned long irqL;
701 unsigned int pipe;
702 int status;
703 u32 ret = _FAIL;
704 struct urb *purb = NULL;
705 struct dvobj_priv *pdvobj = adapter_to_dvobj(padapter);
706 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
707 struct xmit_buf *pxmitbuf = (struct xmit_buf *)wmem;
708 struct xmit_frame *pxmitframe = (struct xmit_frame *)pxmitbuf->priv_data;
709 struct usb_device *pusbd = pdvobj->pusbdev;
710
711
712 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("+usb_write_port\n"));
713
714 if ((padapter->bDriverStopped) || (padapter->bSurpriseRemoved) ||
715 (padapter->pwrctrlpriv.pnp_bstop_trx)) {
716 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
717 ("usb_write_port:( padapter->bDriverStopped ||padapter->bSurpriseRemoved ||adapter->pwrctrlpriv.pnp_bstop_trx)!!!\n"));
718 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_TX_DENY);
719 goto exit;
720 }
721
722 spin_lock_irqsave(&pxmitpriv->lock, irqL);
723
724 switch (addr) {
725 case VO_QUEUE_INX:
726 pxmitpriv->voq_cnt++;
727 pxmitbuf->flags = VO_QUEUE_INX;
728 break;
729 case VI_QUEUE_INX:
730 pxmitpriv->viq_cnt++;
731 pxmitbuf->flags = VI_QUEUE_INX;
732 break;
733 case BE_QUEUE_INX:
734 pxmitpriv->beq_cnt++;
735 pxmitbuf->flags = BE_QUEUE_INX;
736 break;
737 case BK_QUEUE_INX:
738 pxmitpriv->bkq_cnt++;
739 pxmitbuf->flags = BK_QUEUE_INX;
740 break;
741 case HIGH_QUEUE_INX:
742 pxmitbuf->flags = HIGH_QUEUE_INX;
743 break;
744 default:
745 pxmitbuf->flags = MGT_QUEUE_INX;
746 break;
747 }
748
749 spin_unlock_irqrestore(&pxmitpriv->lock, irqL);
750
751 purb = pxmitbuf->pxmit_urb[0];
752
753 /* translate DMA FIFO addr to pipehandle */
754 pipe = ffaddr2pipehdl(pdvobj, addr);
755
756 usb_fill_bulk_urb(purb, pusbd, pipe,
757 pxmitframe->buf_addr, /* pxmitbuf->pbuf */
758 cnt,
759 usb_write_port_complete,
760 pxmitbuf);/* context is pxmitbuf */
761
762 status = usb_submit_urb(purb, GFP_ATOMIC);
763 if (status) {
764 rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_WRITE_PORT_ERR);
765 DBG_88E("usb_write_port, status =%d\n", status);
766 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port(): usb_submit_urb, status =%x\n", status));
767
768 switch (status) {
769 case -ENODEV:
770 padapter->bDriverStopped = true;
771 break;
772 default:
773 break;
774 }
775 goto exit;
776 }
777
778 ret = _SUCCESS;
779
780 /* We add the URB_ZERO_PACKET flag to urb so that the host will send the zero packet automatically. */
781
782 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("-usb_write_port\n"));
783
784 exit:
785 if (ret != _SUCCESS)
786 rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
787 return ret;
788 }
789
790 void usb_write_port_cancel(struct adapter *padapter)
791 {
792 int i, j;
793 struct xmit_buf *pxmitbuf = (struct xmit_buf *)padapter->xmitpriv.pxmitbuf;
794
795 DBG_88E("%s\n", __func__);
796
797 padapter->bWritePortCancel = true;
798
799 for (i = 0; i < NR_XMITBUFF; i++) {
800 for (j = 0; j < 8; j++) {
801 if (pxmitbuf->pxmit_urb[j])
802 usb_kill_urb(pxmitbuf->pxmit_urb[j]);
803 }
804 pxmitbuf++;
805 }
806
807 pxmitbuf = (struct xmit_buf *)padapter->xmitpriv.pxmit_extbuf;
808 for (i = 0; i < NR_XMIT_EXTBUFF; i++) {
809 for (j = 0; j < 8; j++) {
810 if (pxmitbuf->pxmit_urb[j])
811 usb_kill_urb(pxmitbuf->pxmit_urb[j]);
812 }
813 pxmitbuf++;
814 }
815 }
816
817 void rtl8188eu_recv_tasklet(void *priv)
818 {
819 struct sk_buff *pskb;
820 struct adapter *adapt = priv;
821 struct recv_priv *precvpriv = &adapt->recvpriv;
822
823 while (NULL != (pskb = skb_dequeue(&precvpriv->rx_skb_queue))) {
824 if ((adapt->bDriverStopped) || (adapt->bSurpriseRemoved)) {
825 DBG_88E("recv_tasklet => bDriverStopped or bSurpriseRemoved\n");
826 dev_kfree_skb_any(pskb);
827 break;
828 }
829 recvbuf2recvframe(adapt, pskb);
830 skb_reset_tail_pointer(pskb);
831 pskb->len = 0;
832 skb_queue_tail(&precvpriv->free_recv_skb_queue, pskb);
833 }
834 }
835
836 void rtl8188eu_xmit_tasklet(void *priv)
837 {
838 int ret = false;
839 struct adapter *adapt = priv;
840 struct xmit_priv *pxmitpriv = &adapt->xmitpriv;
841
842 if (check_fwstate(&adapt->mlmepriv, _FW_UNDER_SURVEY))
843 return;
844
845 while (1) {
846 if ((adapt->bDriverStopped) ||
847 (adapt->bSurpriseRemoved) ||
848 (adapt->bWritePortCancel)) {
849 DBG_88E("xmit_tasklet => bDriverStopped or bSurpriseRemoved or bWritePortCancel\n");
850 break;
851 }
852
853 ret = rtl8188eu_xmitframe_complete(adapt, pxmitpriv, NULL);
854
855 if (!ret)
856 break;
857 }
858 }
Linux kernel - Deliverables
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