1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 *
4 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
5 *
6 ******************************************************************************/
7 #define _USB_OPS_LINUX_C_
8
9 #include <drv_types.h>
10 #include <recv_osdep.h>
11 #include <rtw_sreset.h>
12
interrupt_handler_8188eu(struct adapter * adapt,u16 pkt_len,u8 * pbuf)13 static void interrupt_handler_8188eu(struct adapter *adapt, u16 pkt_len, u8 *pbuf)
14 {
15 struct hal_data_8188e *haldata = adapt->HalData;
16
17 if (pkt_len != INTERRUPT_MSG_FORMAT_LEN) {
18 DBG_88E("%s Invalid interrupt content length (%d)!\n", __func__, pkt_len);
19 return;
20 }
21
22 /* HISR */
23 memcpy(&haldata->IntArray[0], &pbuf[USB_INTR_CONTENT_HISR_OFFSET], 4);
24 memcpy(&haldata->IntArray[1], &pbuf[USB_INTR_CONTENT_HISRE_OFFSET], 4);
25
26 /* C2H Event */
27 if (pbuf[0] != 0)
28 memcpy(&(haldata->C2hArray[0]), &(pbuf[USB_INTR_CONTENT_C2H_OFFSET]), 16);
29 }
30
recvbuf2recvframe(struct adapter * adapt,struct sk_buff * pskb)31 static int recvbuf2recvframe(struct adapter *adapt, struct sk_buff *pskb)
32 {
33 u8 *pbuf;
34 u8 shift_sz = 0;
35 u16 pkt_cnt;
36 u32 pkt_offset, skb_len, alloc_sz;
37 s32 transfer_len;
38 struct recv_stat *prxstat;
39 struct phy_stat *pphy_status = NULL;
40 struct sk_buff *pkt_copy = NULL;
41 struct recv_frame *precvframe = NULL;
42 struct rx_pkt_attrib *pattrib = NULL;
43 struct hal_data_8188e *haldata = adapt->HalData;
44 struct recv_priv *precvpriv = &adapt->recvpriv;
45 struct __queue *pfree_recv_queue = &precvpriv->free_recv_queue;
46
47 transfer_len = (s32)pskb->len;
48 pbuf = pskb->data;
49
50 prxstat = (struct recv_stat *)pbuf;
51 pkt_cnt = (le32_to_cpu(prxstat->rxdw2) >> 16) & 0xff;
52
53 do {
54 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
55 ("recvbuf2recvframe: rxdesc=offsset 0:0x%08x, 4:0x%08x, 8:0x%08x, C:0x%08x\n",
56 prxstat->rxdw0, prxstat->rxdw1, prxstat->rxdw2, prxstat->rxdw4));
57
58 prxstat = (struct recv_stat *)pbuf;
59
60 precvframe = rtw_alloc_recvframe(pfree_recv_queue);
61 if (!precvframe) {
62 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvbuf2recvframe: precvframe==NULL\n"));
63 DBG_88E("%s()-%d: rtw_alloc_recvframe() failed! RX Drop!\n", __func__, __LINE__);
64 goto _exit_recvbuf2recvframe;
65 }
66
67 INIT_LIST_HEAD(&precvframe->list);
68
69 update_recvframe_attrib_88e(precvframe, prxstat);
70
71 pattrib = &precvframe->attrib;
72
73 if ((pattrib->crc_err) || (pattrib->icv_err)) {
74 DBG_88E("%s: RX Warning! crc_err=%d icv_err=%d, skip!\n", __func__, pattrib->crc_err, pattrib->icv_err);
75
76 rtw_free_recvframe(precvframe, pfree_recv_queue);
77 goto _exit_recvbuf2recvframe;
78 }
79
80 if ((pattrib->physt) && (pattrib->pkt_rpt_type == NORMAL_RX))
81 pphy_status = (struct phy_stat *)(pbuf + RXDESC_OFFSET);
82
83 pkt_offset = RXDESC_SIZE + pattrib->drvinfo_sz + pattrib->shift_sz + pattrib->pkt_len;
84
85 if ((pattrib->pkt_len <= 0) || (pkt_offset > transfer_len)) {
86 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("recvbuf2recvframe: pkt_len<=0\n"));
87 DBG_88E("%s()-%d: RX Warning!,pkt_len<=0 or pkt_offset> transfoer_len\n", __func__, __LINE__);
88 rtw_free_recvframe(precvframe, pfree_recv_queue);
89 goto _exit_recvbuf2recvframe;
90 }
91
92 /* Modified by Albert 20101213 */
93 /* For 8 bytes IP header alignment. */
94 if (pattrib->qos) /* Qos data, wireless lan header length is 26 */
95 shift_sz = 6;
96 else
97 shift_sz = 0;
98
99 skb_len = pattrib->pkt_len;
100
101 /* for first fragment packet, driver need allocate 1536+drvinfo_sz+RXDESC_SIZE to defrag packet. */
102 /* modify alloc_sz for recvive crc error packet by thomas 2011-06-02 */
103 if ((pattrib->mfrag == 1) && (pattrib->frag_num == 0)) {
104 if (skb_len <= 1650)
105 alloc_sz = 1664;
106 else
107 alloc_sz = skb_len + 14;
108 } else {
109 alloc_sz = skb_len;
110 /* 6 is for IP header 8 bytes alignment in QoS packet case. */
111 /* 8 is for skb->data 4 bytes alignment. */
112 alloc_sz += 14;
113 }
114
115 pkt_copy = netdev_alloc_skb(adapt->pnetdev, alloc_sz);
116 if (pkt_copy) {
117 pkt_copy->dev = adapt->pnetdev;
118 precvframe->pkt = pkt_copy;
119 skb_reserve(pkt_copy, 8 - ((size_t)(pkt_copy->data) & 7));/* force pkt_copy->data at 8-byte alignment address */
120 skb_reserve(pkt_copy, shift_sz);/* force ip_hdr at 8-byte alignment address according to shift_sz. */
121 memcpy(pkt_copy->data, (pbuf + pattrib->drvinfo_sz + RXDESC_SIZE), skb_len);
122 skb_put(precvframe->pkt, skb_len);
123 } else {
124 DBG_88E("recvbuf2recvframe: alloc_skb fail , drop frag frame\n");
125 rtw_free_recvframe(precvframe, pfree_recv_queue);
126 goto _exit_recvbuf2recvframe;
127 }
128
129 switch (haldata->UsbRxAggMode) {
130 case USB_RX_AGG_DMA:
131 case USB_RX_AGG_MIX:
132 pkt_offset = (u16)round_up(pkt_offset, 128);
133 break;
134 case USB_RX_AGG_USB:
135 pkt_offset = (u16)round_up(pkt_offset, 4);
136 break;
137 case USB_RX_AGG_DISABLE:
138 default:
139 break;
140 }
141 if (pattrib->pkt_rpt_type == NORMAL_RX) { /* Normal rx packet */
142 if (pattrib->physt)
143 update_recvframe_phyinfo_88e(precvframe, pphy_status);
144 if (rtw_recv_entry(precvframe) != _SUCCESS) {
145 RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
146 ("recvbuf2recvframe: rtw_recv_entry(precvframe) != _SUCCESS\n"));
147 }
148 } else if (pattrib->pkt_rpt_type == TX_REPORT1) {
149 /* CCX-TXRPT ack for xmit mgmt frames. */
150 handle_txrpt_ccx_88e(adapt, precvframe->pkt->data);
151 rtw_free_recvframe(precvframe, pfree_recv_queue);
152 } else if (pattrib->pkt_rpt_type == TX_REPORT2) {
153 ODM_RA_TxRPT2Handle_8188E(
154 &haldata->odmpriv,
155 precvframe->pkt->data,
156 pattrib->pkt_len,
157 pattrib->MacIDValidEntry[0],
158 pattrib->MacIDValidEntry[1]
159 );
160 rtw_free_recvframe(precvframe, pfree_recv_queue);
161 } else if (pattrib->pkt_rpt_type == HIS_REPORT) {
162 interrupt_handler_8188eu(adapt, pattrib->pkt_len, precvframe->pkt->data);
163 rtw_free_recvframe(precvframe, pfree_recv_queue);
164 }
165 pkt_cnt--;
166 transfer_len -= pkt_offset;
167 pbuf += pkt_offset;
168 precvframe = NULL;
169 pkt_copy = NULL;
170
171 if (transfer_len > 0 && pkt_cnt == 0)
172 pkt_cnt = (le32_to_cpu(prxstat->rxdw2)>>16) & 0xff;
173
174 } while ((transfer_len > 0) && (pkt_cnt > 0));
175
176 _exit_recvbuf2recvframe:
177
178 return _SUCCESS;
179 }
180
ffaddr2pipehdl(struct dvobj_priv * pdvobj,u32 addr)181 unsigned int ffaddr2pipehdl(struct dvobj_priv *pdvobj, u32 addr)
182 {
183 unsigned int pipe = 0, ep_num = 0;
184 struct usb_device *pusbd = pdvobj->pusbdev;
185
186 if (addr == RECV_BULK_IN_ADDR) {
187 pipe = usb_rcvbulkpipe(pusbd, pdvobj->RtInPipe[0]);
188 } else if (addr == RECV_INT_IN_ADDR) {
189 pipe = usb_rcvbulkpipe(pusbd, pdvobj->RtInPipe[1]);
190 } else if (addr < HW_QUEUE_ENTRY) {
191 ep_num = pdvobj->Queue2Pipe[addr];
192 pipe = usb_sndbulkpipe(pusbd, ep_num);
193 }
194
195 return pipe;
196 }
197
usbctrl_vendorreq(struct adapter * adapt,u8 request,u16 value,u16 index,void * pdata,u16 len,u8 requesttype)198 static int usbctrl_vendorreq(struct adapter *adapt, u8 request, u16 value, u16 index, void *pdata, u16 len, u8 requesttype)
199 {
200 struct dvobj_priv *dvobjpriv = adapter_to_dvobj(adapt);
201 struct usb_device *udev = dvobjpriv->pusbdev;
202 unsigned int pipe;
203 int status = 0;
204 u8 reqtype;
205 u8 *pIo_buf;
206 int vendorreq_times = 0;
207
208 if ((adapt->bSurpriseRemoved) || (adapt->pwrctrlpriv.pnp_bstop_trx)) {
209 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usbctrl_vendorreq:(adapt->bSurpriseRemoved ||adapter->pwrctrlpriv.pnp_bstop_trx)!!!\n"));
210 status = -EPERM;
211 goto exit;
212 }
213
214 if (len > MAX_VENDOR_REQ_CMD_SIZE) {
215 DBG_88E("[%s] Buffer len error ,vendor request failed\n", __func__);
216 status = -EINVAL;
217 goto exit;
218 }
219
220 if (mutex_lock_interruptible(&dvobjpriv->usb_vendor_req_mutex)) {
221 status = -ERESTARTSYS;
222 goto exit;
223 }
224
225 /* Acquire IO memory for vendorreq */
226 pIo_buf = kmalloc(MAX_USB_IO_CTL_SIZE, GFP_ATOMIC);
227
228 if (!pIo_buf) {
229 DBG_88E("[%s] pIo_buf == NULL\n", __func__);
230 status = -ENOMEM;
231 goto release_mutex;
232 }
233
234 while (++vendorreq_times <= MAX_USBCTRL_VENDORREQ_TIMES) {
235 memset(pIo_buf, 0, len);
236
237 if (requesttype == 0x01) {
238 pipe = usb_rcvctrlpipe(udev, 0);/* read_in */
239 reqtype = REALTEK_USB_VENQT_READ;
240 } else {
241 pipe = usb_sndctrlpipe(udev, 0);/* write_out */
242 reqtype = REALTEK_USB_VENQT_WRITE;
243 memcpy(pIo_buf, pdata, len);
244 }
245
246 status = usb_control_msg(udev, pipe, request, reqtype, value, index, pIo_buf, len, RTW_USB_CONTROL_MSG_TIMEOUT);
247
248 if (status == len) { /* Success this control transfer. */
249 if (requesttype == 0x01)
250 memcpy(pdata, pIo_buf, len);
251 } else { /* error cases */
252 DBG_88E("reg 0x%x, usb %s %u fail, status:%d value=0x%x, vendorreq_times:%d\n",
253 value, (requesttype == 0x01) ? "read" : "write",
254 len, status, *(u32 *)pdata, vendorreq_times);
255
256 if (status < 0) {
257 if (status == (-ESHUTDOWN) || status == -ENODEV) {
258 adapt->bSurpriseRemoved = true;
259 } else {
260 adapt->HalData->srestpriv.Wifi_Error_Status = USB_VEN_REQ_CMD_FAIL;
261 }
262 } else { /* status != len && status >= 0 */
263 if (status > 0) {
264 if (requesttype == 0x01) {
265 /* For Control read transfer, we have to copy the read data from pIo_buf to pdata. */
266 memcpy(pdata, pIo_buf, len);
267 }
268 }
269 }
270 }
271
272 /* firmware download is checksumed, don't retry */
273 if ((value >= FW_8188E_START_ADDRESS && value <= FW_8188E_END_ADDRESS) || status == len)
274 break;
275 }
276 kfree(pIo_buf);
277
278 release_mutex:
279 mutex_unlock(&dvobjpriv->usb_vendor_req_mutex);
280 exit:
281 return status;
282 }
283
usb_read8(struct adapter * adapter,u32 addr)284 u8 usb_read8(struct adapter *adapter, u32 addr)
285 {
286 u8 request;
287 u8 requesttype;
288 u16 wvalue;
289 u16 index;
290 u16 len;
291 u8 data = 0;
292
293 request = 0x05;
294 requesttype = 0x01;/* read_in */
295 index = 0;/* n/a */
296
297 wvalue = (u16)(addr&0x0000ffff);
298 len = 1;
299
300 usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
301
302 return data;
303 }
304
usb_read16(struct adapter * adapter,u32 addr)305 u16 usb_read16(struct adapter *adapter, u32 addr)
306 {
307 u8 request;
308 u8 requesttype;
309 u16 wvalue;
310 u16 index;
311 u16 len;
312 __le32 data;
313
314 request = 0x05;
315 requesttype = 0x01;/* read_in */
316 index = 0;/* n/a */
317 wvalue = (u16)(addr&0x0000ffff);
318 len = 2;
319 usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
320
321 return (u16)(le32_to_cpu(data)&0xffff);
322 }
323
usb_read32(struct adapter * adapter,u32 addr)324 u32 usb_read32(struct adapter *adapter, u32 addr)
325 {
326 u8 request;
327 u8 requesttype;
328 u16 wvalue;
329 u16 index;
330 u16 len;
331 __le32 data;
332
333 request = 0x05;
334 requesttype = 0x01;/* read_in */
335 index = 0;/* n/a */
336
337 wvalue = (u16)(addr&0x0000ffff);
338 len = 4;
339
340 usbctrl_vendorreq(adapter, request, wvalue, index, &data, len, requesttype);
341
342 return le32_to_cpu(data);
343 }
344
usb_read_port_complete(struct urb * purb,struct pt_regs * regs)345 static void usb_read_port_complete(struct urb *purb, struct pt_regs *regs)
346 {
347 struct recv_buf *precvbuf = (struct recv_buf *)purb->context;
348 struct adapter *adapt = (struct adapter *)precvbuf->adapter;
349 struct recv_priv *precvpriv = &adapt->recvpriv;
350
351 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete!!!\n"));
352
353 if (adapt->bSurpriseRemoved || adapt->bDriverStopped || adapt->bReadPortCancel) {
354 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
355 ("usb_read_port_complete:bDriverStopped(%d) OR bSurpriseRemoved(%d)\n",
356 adapt->bDriverStopped, adapt->bSurpriseRemoved));
357
358 precvbuf->reuse = true;
359 DBG_88E("%s() RX Warning! bDriverStopped(%d) OR bSurpriseRemoved(%d) bReadPortCancel(%d)\n",
360 __func__, adapt->bDriverStopped,
361 adapt->bSurpriseRemoved, adapt->bReadPortCancel);
362 return;
363 }
364
365 if (purb->status == 0) { /* SUCCESS */
366 if ((purb->actual_length > MAX_RECVBUF_SZ) || (purb->actual_length < RXDESC_SIZE)) {
367 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
368 ("usb_read_port_complete: (purb->actual_length > MAX_RECVBUF_SZ) || (purb->actual_length < RXDESC_SIZE)\n"));
369 precvbuf->reuse = true;
370 usb_read_port(adapt, RECV_BULK_IN_ADDR, precvbuf);
371 DBG_88E("%s()-%d: RX Warning!\n", __func__, __LINE__);
372 } else {
373 skb_put(precvbuf->pskb, purb->actual_length);
374 skb_queue_tail(&precvpriv->rx_skb_queue, precvbuf->pskb);
375
376 if (skb_queue_len(&precvpriv->rx_skb_queue) <= 1)
377 tasklet_schedule(&precvpriv->recv_tasklet);
378
379 precvbuf->pskb = NULL;
380 precvbuf->reuse = false;
381 usb_read_port(adapt, RECV_BULK_IN_ADDR, precvbuf);
382 }
383 } else {
384 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete : purb->status(%d) != 0\n", purb->status));
385
386 DBG_88E("###=> usb_read_port_complete => urb status(%d)\n", purb->status);
387 skb_put(precvbuf->pskb, purb->actual_length);
388 precvbuf->pskb = NULL;
389
390 switch (purb->status) {
391 case -EINVAL:
392 case -EPIPE:
393 case -ENODEV:
394 case -ESHUTDOWN:
395 adapt->bSurpriseRemoved = true;
396 /* fall through */
397 case -ENOENT:
398 adapt->bDriverStopped = true;
399 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete:bDriverStopped=true\n"));
400 break;
401 case -EPROTO:
402 case -EOVERFLOW:
403 adapt->HalData->srestpriv.Wifi_Error_Status = USB_READ_PORT_FAIL;
404 precvbuf->reuse = true;
405 usb_read_port(adapt, RECV_BULK_IN_ADDR, precvbuf);
406 break;
407 case -EINPROGRESS:
408 DBG_88E("ERROR: URB IS IN PROGRESS!\n");
409 break;
410 default:
411 break;
412 }
413 }
414 }
415
usb_read_port(struct adapter * adapter,u32 addr,struct recv_buf * precvbuf)416 u32 usb_read_port(struct adapter *adapter, u32 addr, struct recv_buf *precvbuf)
417 {
418 struct urb *purb = NULL;
419 struct dvobj_priv *pdvobj = adapter_to_dvobj(adapter);
420 struct recv_priv *precvpriv = &adapter->recvpriv;
421 struct usb_device *pusbd = pdvobj->pusbdev;
422 int err;
423 unsigned int pipe;
424 u32 ret = _SUCCESS;
425
426 if (adapter->bDriverStopped || adapter->bSurpriseRemoved ||
427 adapter->pwrctrlpriv.pnp_bstop_trx) {
428 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
429 ("usb_read_port:(adapt->bDriverStopped ||adapt->bSurpriseRemoved ||adapter->pwrctrlpriv.pnp_bstop_trx)!!!\n"));
430 return _FAIL;
431 }
432
433 if (!precvbuf) {
434 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
435 ("usb_read_port:precvbuf==NULL\n"));
436 return _FAIL;
437 }
438
439 if (!precvbuf->reuse || !precvbuf->pskb) {
440 precvbuf->pskb = skb_dequeue(&precvpriv->free_recv_skb_queue);
441 if (precvbuf->pskb)
442 precvbuf->reuse = true;
443 }
444
445 /* re-assign for linux based on skb */
446 if (!precvbuf->reuse || !precvbuf->pskb) {
447 precvbuf->pskb = netdev_alloc_skb(adapter->pnetdev, MAX_RECVBUF_SZ);
448 if (!precvbuf->pskb) {
449 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("init_recvbuf(): alloc_skb fail!\n"));
450 DBG_88E("#### usb_read_port() alloc_skb fail!#####\n");
451 return _FAIL;
452 }
453 } else { /* reuse skb */
454 precvbuf->reuse = false;
455 }
456
457 purb = precvbuf->purb;
458
459 /* translate DMA FIFO addr to pipehandle */
460 pipe = ffaddr2pipehdl(pdvobj, addr);
461
462 usb_fill_bulk_urb(purb, pusbd, pipe,
463 precvbuf->pskb->data,
464 MAX_RECVBUF_SZ,
465 usb_read_port_complete,
466 precvbuf);/* context is precvbuf */
467
468 err = usb_submit_urb(purb, GFP_ATOMIC);
469 if ((err) && (err != (-EPERM))) {
470 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
471 ("cannot submit rx in-token(err=0x%.8x), URB_STATUS =0x%.8x",
472 err, purb->status));
473 DBG_88E("cannot submit rx in-token(err = 0x%08x),urb_status = %d\n",
474 err, purb->status);
475 ret = _FAIL;
476 }
477
478 return ret;
479 }
480
rtw_hal_inirp_deinit(struct adapter * padapter)481 void rtw_hal_inirp_deinit(struct adapter *padapter)
482 {
483 int i;
484 struct recv_buf *precvbuf;
485
486 precvbuf = padapter->recvpriv.precv_buf;
487
488 DBG_88E("%s\n", __func__);
489
490 padapter->bReadPortCancel = true;
491
492 for (i = 0; i < NR_RECVBUFF; i++) {
493 precvbuf->reuse = true;
494 if (precvbuf->purb)
495 usb_kill_urb(precvbuf->purb);
496 precvbuf++;
497 }
498 }
499
usb_write8(struct adapter * adapter,u32 addr,u8 val)500 int usb_write8(struct adapter *adapter, u32 addr, u8 val)
501 {
502 u8 request;
503 u8 requesttype;
504 u16 wvalue;
505 u16 index;
506 u16 len;
507 u8 data;
508
509 request = 0x05;
510 requesttype = 0x00;/* write_out */
511 index = 0;/* n/a */
512 wvalue = (u16)(addr&0x0000ffff);
513 len = 1;
514 data = val;
515 return usbctrl_vendorreq(adapter, request, wvalue,
516 index, &data, len, requesttype);
517 }
518
usb_write16(struct adapter * adapter,u32 addr,u16 val)519 int usb_write16(struct adapter *adapter, u32 addr, u16 val)
520 {
521 u8 request;
522 u8 requesttype;
523 u16 wvalue;
524 u16 index;
525 u16 len;
526 __le32 data;
527
528 request = 0x05;
529 requesttype = 0x00;/* write_out */
530 index = 0;/* n/a */
531
532 wvalue = (u16)(addr&0x0000ffff);
533 len = 2;
534
535 data = cpu_to_le32(val & 0x0000ffff);
536
537 return usbctrl_vendorreq(adapter, request, wvalue,
538 index, &data, len, requesttype);
539 }
540
usb_write32(struct adapter * adapter,u32 addr,u32 val)541 int usb_write32(struct adapter *adapter, u32 addr, u32 val)
542 {
543 u8 request;
544 u8 requesttype;
545 u16 wvalue;
546 u16 index;
547 u16 len;
548 __le32 data;
549
550 request = 0x05;
551 requesttype = 0x00;/* write_out */
552 index = 0;/* n/a */
553
554 wvalue = (u16)(addr&0x0000ffff);
555 len = 4;
556 data = cpu_to_le32(val);
557
558 return usbctrl_vendorreq(adapter, request, wvalue,
559 index, &data, len, requesttype);
560 }
561
usb_write_port_complete(struct urb * purb,struct pt_regs * regs)562 static void usb_write_port_complete(struct urb *purb, struct pt_regs *regs)
563 {
564 struct xmit_buf *pxmitbuf = (struct xmit_buf *)purb->context;
565 struct adapter *padapter = pxmitbuf->padapter;
566 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
567
568 switch (pxmitbuf->flags) {
569 case VO_QUEUE_INX:
570 pxmitpriv->voq_cnt--;
571 break;
572 case VI_QUEUE_INX:
573 pxmitpriv->viq_cnt--;
574 break;
575 case BE_QUEUE_INX:
576 pxmitpriv->beq_cnt--;
577 break;
578 case BK_QUEUE_INX:
579 pxmitpriv->bkq_cnt--;
580 break;
581 case HIGH_QUEUE_INX:
582 #ifdef CONFIG_88EU_AP_MODE
583 rtw_chk_hi_queue_cmd(padapter);
584 #endif
585 break;
586 default:
587 break;
588 }
589
590 if (padapter->bSurpriseRemoved || padapter->bDriverStopped ||
591 padapter->bWritePortCancel) {
592 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
593 ("usb_write_port_complete:bDriverStopped(%d) OR bSurpriseRemoved(%d)",
594 padapter->bDriverStopped, padapter->bSurpriseRemoved));
595 DBG_88E("%s(): TX Warning! bDriverStopped(%d) OR bSurpriseRemoved(%d) bWritePortCancel(%d) pxmitbuf->ext_tag(%x)\n",
596 __func__, padapter->bDriverStopped,
597 padapter->bSurpriseRemoved, padapter->bReadPortCancel,
598 pxmitbuf->ext_tag);
599
600 goto check_completion;
601 }
602
603 if (purb->status) {
604 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete : purb->status(%d) != 0\n", purb->status));
605 DBG_88E("###=> urb_write_port_complete status(%d)\n", purb->status);
606 if ((purb->status == -EPIPE) || (purb->status == -EPROTO)) {
607 sreset_set_wifi_error_status(padapter, USB_WRITE_PORT_FAIL);
608 } else if (purb->status == -EINPROGRESS) {
609 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete: EINPROGESS\n"));
610 goto check_completion;
611 } else if (purb->status == -ENOENT) {
612 DBG_88E("%s: -ENOENT\n", __func__);
613 goto check_completion;
614 } else if (purb->status == -ECONNRESET) {
615 DBG_88E("%s: -ECONNRESET\n", __func__);
616 goto check_completion;
617 } else if (purb->status == -ESHUTDOWN) {
618 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete: ESHUTDOWN\n"));
619 padapter->bDriverStopped = true;
620 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete:bDriverStopped = true\n"));
621 goto check_completion;
622 } else {
623 padapter->bSurpriseRemoved = true;
624 DBG_88E("bSurpriseRemoved = true\n");
625 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port_complete:bSurpriseRemoved = true\n"));
626
627 goto check_completion;
628 }
629 }
630
631 check_completion:
632 rtw_sctx_done_err(&pxmitbuf->sctx,
633 purb->status ? RTW_SCTX_DONE_WRITE_PORT_ERR :
634 RTW_SCTX_DONE_SUCCESS);
635
636 rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
637
638 tasklet_hi_schedule(&pxmitpriv->xmit_tasklet);
639 }
640
usb_write_port(struct adapter * padapter,u32 addr,u32 cnt,struct xmit_buf * xmitbuf)641 u32 usb_write_port(struct adapter *padapter, u32 addr, u32 cnt, struct xmit_buf *xmitbuf)
642 {
643 unsigned long irqL;
644 unsigned int pipe;
645 int status;
646 u32 ret = _FAIL;
647 struct urb *purb = NULL;
648 struct dvobj_priv *pdvobj = adapter_to_dvobj(padapter);
649 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
650 struct xmit_frame *pxmitframe = (struct xmit_frame *)xmitbuf->priv_data;
651 struct usb_device *pusbd = pdvobj->pusbdev;
652
653 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("+usb_write_port\n"));
654
655 if ((padapter->bDriverStopped) || (padapter->bSurpriseRemoved) ||
656 (padapter->pwrctrlpriv.pnp_bstop_trx)) {
657 RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
658 ("usb_write_port:( padapter->bDriverStopped ||padapter->bSurpriseRemoved ||adapter->pwrctrlpriv.pnp_bstop_trx)!!!\n"));
659 rtw_sctx_done_err(&xmitbuf->sctx, RTW_SCTX_DONE_TX_DENY);
660 goto exit;
661 }
662
663 spin_lock_irqsave(&pxmitpriv->lock, irqL);
664
665 switch (addr) {
666 case VO_QUEUE_INX:
667 pxmitpriv->voq_cnt++;
668 xmitbuf->flags = VO_QUEUE_INX;
669 break;
670 case VI_QUEUE_INX:
671 pxmitpriv->viq_cnt++;
672 xmitbuf->flags = VI_QUEUE_INX;
673 break;
674 case BE_QUEUE_INX:
675 pxmitpriv->beq_cnt++;
676 xmitbuf->flags = BE_QUEUE_INX;
677 break;
678 case BK_QUEUE_INX:
679 pxmitpriv->bkq_cnt++;
680 xmitbuf->flags = BK_QUEUE_INX;
681 break;
682 case HIGH_QUEUE_INX:
683 xmitbuf->flags = HIGH_QUEUE_INX;
684 break;
685 default:
686 xmitbuf->flags = MGT_QUEUE_INX;
687 break;
688 }
689
690 spin_unlock_irqrestore(&pxmitpriv->lock, irqL);
691
692 purb = xmitbuf->pxmit_urb[0];
693
694 /* translate DMA FIFO addr to pipehandle */
695 pipe = ffaddr2pipehdl(pdvobj, addr);
696
697 usb_fill_bulk_urb(purb, pusbd, pipe,
698 pxmitframe->buf_addr, /* xmitbuf->pbuf */
699 cnt,
700 usb_write_port_complete,
701 xmitbuf);/* context is xmitbuf */
702
703 status = usb_submit_urb(purb, GFP_ATOMIC);
704 if (status) {
705 rtw_sctx_done_err(&xmitbuf->sctx, RTW_SCTX_DONE_WRITE_PORT_ERR);
706 DBG_88E("usb_write_port, status =%d\n", status);
707 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_write_port(): usb_submit_urb, status =%x\n", status));
708
709 switch (status) {
710 case -ENODEV:
711 padapter->bDriverStopped = true;
712 break;
713 default:
714 break;
715 }
716 goto exit;
717 }
718
719 ret = _SUCCESS;
720
721 /* We add the URB_ZERO_PACKET flag to urb so that the host will send the zero packet automatically. */
722
723 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("-usb_write_port\n"));
724
725 exit:
726 if (ret != _SUCCESS)
727 rtw_free_xmitbuf(pxmitpriv, xmitbuf);
728 return ret;
729 }
730
usb_write_port_cancel(struct adapter * padapter)731 void usb_write_port_cancel(struct adapter *padapter)
732 {
733 int i, j;
734 struct xmit_buf *pxmitbuf = (struct xmit_buf *)padapter->xmitpriv.pxmitbuf;
735
736 DBG_88E("%s\n", __func__);
737
738 padapter->bWritePortCancel = true;
739
740 for (i = 0; i < NR_XMITBUFF; i++) {
741 for (j = 0; j < 8; j++) {
742 if (pxmitbuf->pxmit_urb[j])
743 usb_kill_urb(pxmitbuf->pxmit_urb[j]);
744 }
745 pxmitbuf++;
746 }
747
748 pxmitbuf = (struct xmit_buf *)padapter->xmitpriv.pxmit_extbuf;
749 for (i = 0; i < NR_XMIT_EXTBUFF; i++) {
750 for (j = 0; j < 8; j++) {
751 if (pxmitbuf->pxmit_urb[j])
752 usb_kill_urb(pxmitbuf->pxmit_urb[j]);
753 }
754 pxmitbuf++;
755 }
756 }
757
rtl8188eu_recv_tasklet(void * priv)758 void rtl8188eu_recv_tasklet(void *priv)
759 {
760 struct sk_buff *pskb;
761 struct adapter *adapt = priv;
762 struct recv_priv *precvpriv = &adapt->recvpriv;
763
764 while (NULL != (pskb = skb_dequeue(&precvpriv->rx_skb_queue))) {
765 if ((adapt->bDriverStopped) || (adapt->bSurpriseRemoved)) {
766 DBG_88E("recv_tasklet => bDriverStopped or bSurpriseRemoved\n");
767 dev_kfree_skb_any(pskb);
768 break;
769 }
770 recvbuf2recvframe(adapt, pskb);
771 skb_reset_tail_pointer(pskb);
772 pskb->len = 0;
773 skb_queue_tail(&precvpriv->free_recv_skb_queue, pskb);
774 }
775 }
776
rtl8188eu_xmit_tasklet(void * priv)777 void rtl8188eu_xmit_tasklet(void *priv)
778 {
779 int ret = false;
780 struct adapter *adapt = priv;
781 struct xmit_priv *pxmitpriv = &adapt->xmitpriv;
782
783 if (check_fwstate(&adapt->mlmepriv, _FW_UNDER_SURVEY))
784 return;
785
786 while (1) {
787 if ((adapt->bDriverStopped) ||
788 (adapt->bSurpriseRemoved) ||
789 (adapt->bWritePortCancel)) {
790 DBG_88E("xmit_tasklet => bDriverStopped or bSurpriseRemoved or bWritePortCancel\n");
791 break;
792 }
793
794 ret = rtl8188eu_xmitframe_complete(adapt, pxmitpriv);
795
796 if (!ret)
797 break;
798 }
799 }
800
