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