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