1 /******************************************************************************
4 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
5 * Linux device driver for RTL8192SU
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 * You should have received a copy of the GNU General Public License along with
17 * this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
20 * Modifications for inclusion into the Linux staging tree are
21 * Copyright(c) 2010 Larry Finger. All rights reserved.
23 * Contact information:
24 * WLAN FAE <wlanfae@realtek.com>
25 * Larry Finger <Larry.Finger@lwfinger.net>
27 ******************************************************************************/
29 #define _HCI_OPS_OS_C_
31 #include <linux/usb.h>
33 #include "osdep_service.h"
34 #include "drv_types.h"
35 #include "osdep_intf.h"
38 #define RTL871X_VENQT_READ 0xc0
39 #define RTL871X_VENQT_WRITE 0x40
41 struct zero_bulkout_context {
48 uint r8712_usb_init_intf_priv(struct intf_priv *pintfpriv)
50 pintfpriv->piorw_urb = usb_alloc_urb(0, GFP_ATOMIC);
51 if (!pintfpriv->piorw_urb)
53 sema_init(&(pintfpriv->io_retevt), 0);
57 void r8712_usb_unload_intf_priv(struct intf_priv *pintfpriv)
59 if (pintfpriv->piorw_urb) {
60 usb_kill_urb(pintfpriv->piorw_urb);
61 usb_free_urb(pintfpriv->piorw_urb);
65 static unsigned int ffaddr2pipehdl(struct dvobj_priv *pdvobj, u32 addr)
67 unsigned int pipe = 0;
68 struct usb_device *pusbd = pdvobj->pusbdev;
70 if (pdvobj->nr_endpoint == 11) {
73 pipe = usb_sndbulkpipe(pusbd, 0x07);
76 pipe = usb_sndbulkpipe(pusbd, 0x06);
79 pipe = usb_sndbulkpipe(pusbd, 0x05);
82 pipe = usb_sndbulkpipe(pusbd, 0x04);
84 case RTL8712_DMA_BCNQ:
85 pipe = usb_sndbulkpipe(pusbd, 0x0a);
87 case RTL8712_DMA_BMCQ: /* HI Queue */
88 pipe = usb_sndbulkpipe(pusbd, 0x0b);
90 case RTL8712_DMA_MGTQ:
91 pipe = usb_sndbulkpipe(pusbd, 0x0c);
93 case RTL8712_DMA_RX0FF:
94 pipe = usb_rcvbulkpipe(pusbd, 0x03); /* in */
96 case RTL8712_DMA_C2HCMD:
97 pipe = usb_rcvbulkpipe(pusbd, 0x09); /* in */
99 case RTL8712_DMA_H2CCMD:
100 pipe = usb_sndbulkpipe(pusbd, 0x0d);
103 } else if (pdvobj->nr_endpoint == 6) {
105 case RTL8712_DMA_BKQ:
106 pipe = usb_sndbulkpipe(pusbd, 0x07);
108 case RTL8712_DMA_BEQ:
109 pipe = usb_sndbulkpipe(pusbd, 0x06);
111 case RTL8712_DMA_VIQ:
112 pipe = usb_sndbulkpipe(pusbd, 0x05);
114 case RTL8712_DMA_VOQ:
115 pipe = usb_sndbulkpipe(pusbd, 0x04);
117 case RTL8712_DMA_RX0FF:
118 case RTL8712_DMA_C2HCMD:
119 pipe = usb_rcvbulkpipe(pusbd, 0x03); /* in */
121 case RTL8712_DMA_H2CCMD:
122 case RTL8712_DMA_BCNQ:
123 case RTL8712_DMA_BMCQ:
124 case RTL8712_DMA_MGTQ:
125 pipe = usb_sndbulkpipe(pusbd, 0x0d);
128 } else if (pdvobj->nr_endpoint == 4) {
130 case RTL8712_DMA_BEQ:
131 pipe = usb_sndbulkpipe(pusbd, 0x06);
133 case RTL8712_DMA_VOQ:
134 pipe = usb_sndbulkpipe(pusbd, 0x04);
136 case RTL8712_DMA_RX0FF:
137 case RTL8712_DMA_C2HCMD:
138 pipe = usb_rcvbulkpipe(pusbd, 0x03); /* in */
140 case RTL8712_DMA_H2CCMD:
141 case RTL8712_DMA_BCNQ:
142 case RTL8712_DMA_BMCQ:
143 case RTL8712_DMA_MGTQ:
144 pipe = usb_sndbulkpipe(pusbd, 0x0d);
152 static void usb_write_mem_complete(struct urb *purb)
154 struct io_queue *pio_q = (struct io_queue *)purb->context;
155 struct intf_hdl *pintf = &(pio_q->intf);
156 struct intf_priv *pintfpriv = pintf->pintfpriv;
157 struct _adapter *padapter = (struct _adapter *)pintf->adapter;
159 if (purb->status != 0) {
160 if (purb->status == (-ESHUTDOWN))
161 padapter->bDriverStopped = true;
163 padapter->bSurpriseRemoved = true;
165 up(&pintfpriv->io_retevt);
168 void r8712_usb_write_mem(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *wmem)
171 struct _adapter *padapter = (struct _adapter *)pintfhdl->adapter;
172 struct intf_priv *pintfpriv = pintfhdl->pintfpriv;
173 struct io_queue *pio_queue = (struct io_queue *)padapter->pio_queue;
174 struct dvobj_priv *pdvobj = (struct dvobj_priv *)pintfpriv->intf_dev;
175 struct usb_device *pusbd = pdvobj->pusbdev;
176 struct urb *piorw_urb = pintfpriv->piorw_urb;
178 if ((padapter->bDriverStopped) || (padapter->bSurpriseRemoved) ||
179 (padapter->pwrctrlpriv.pnp_bstop_trx))
181 /* translate DMA FIFO addr to pipehandle */
182 pipe = ffaddr2pipehdl(pdvobj, addr);
185 usb_fill_bulk_urb(piorw_urb, pusbd, pipe,
186 wmem, cnt, usb_write_mem_complete,
188 usb_submit_urb(piorw_urb, GFP_ATOMIC);
189 _down_sema(&pintfpriv->io_retevt);
192 static void r8712_usb_read_port_complete(struct urb *purb)
195 struct recv_buf *precvbuf = (struct recv_buf *)purb->context;
196 struct _adapter *padapter = (struct _adapter *)precvbuf->adapter;
197 struct recv_priv *precvpriv = &padapter->recvpriv;
199 if (padapter->bSurpriseRemoved || padapter->bDriverStopped)
201 if (purb->status == 0) { /* SUCCESS */
202 if ((purb->actual_length > (MAX_RECVBUF_SZ)) ||
203 (purb->actual_length < RXDESC_SIZE)) {
204 precvbuf->reuse = true;
205 r8712_read_port(padapter, precvpriv->ff_hwaddr, 0,
206 (unsigned char *)precvbuf);
208 precvbuf->transfer_len = purb->actual_length;
209 pbuf = (uint *)precvbuf->pbuf;
210 isevt = le32_to_cpu(*(pbuf + 1)) & 0x1ff;
211 if ((isevt & 0x1ff) == 0x1ff) {
212 r8712_rxcmd_event_hdl(padapter, pbuf);
213 precvbuf->reuse = true;
214 r8712_read_port(padapter, precvpriv->ff_hwaddr,
215 0, (unsigned char *)precvbuf);
217 _pkt *pskb = precvbuf->pskb;
219 skb_put(pskb, purb->actual_length);
220 skb_queue_tail(&precvpriv->rx_skb_queue, pskb);
221 tasklet_hi_schedule(&precvpriv->recv_tasklet);
222 precvbuf->pskb = NULL;
223 precvbuf->reuse = false;
224 r8712_read_port(padapter, precvpriv->ff_hwaddr,
225 0, (unsigned char *)precvbuf);
229 switch (purb->status) {
235 padapter->bDriverStopped = true;
238 precvbuf->reuse = true;
239 r8712_read_port(padapter, precvpriv->ff_hwaddr, 0,
240 (unsigned char *)precvbuf);
243 netdev_err(padapter->pnetdev, "ERROR: URB IS IN PROGRESS!\n");
251 u32 r8712_usb_read_port(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *rmem)
258 struct urb *purb = NULL;
259 struct recv_buf *precvbuf = (struct recv_buf *)rmem;
260 struct intf_priv *pintfpriv = pintfhdl->pintfpriv;
261 struct dvobj_priv *pdvobj = (struct dvobj_priv *)pintfpriv->intf_dev;
262 struct _adapter *adapter = (struct _adapter *)pdvobj->padapter;
263 struct recv_priv *precvpriv = &adapter->recvpriv;
264 struct usb_device *pusbd = pdvobj->pusbdev;
266 if (adapter->bDriverStopped || adapter->bSurpriseRemoved ||
267 adapter->pwrctrlpriv.pnp_bstop_trx)
269 if (!precvbuf->reuse == false || !precvbuf->pskb) {
270 precvbuf->pskb = skb_dequeue(&precvpriv->free_recv_skb_queue);
271 if (NULL != precvbuf->pskb)
272 precvbuf->reuse = true;
274 if (precvbuf != NULL) {
275 r8712_init_recvbuf(adapter, precvbuf);
276 /* re-assign for linux based on skb */
277 if (!precvbuf->reuse || !precvbuf->pskb) {
278 precvbuf->pskb = netdev_alloc_skb(adapter->pnetdev,
279 MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ);
282 tmpaddr = (addr_t)precvbuf->pskb->data;
283 alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1);
284 skb_reserve(precvbuf->pskb,
285 (RECVBUFF_ALIGN_SZ - alignment));
286 precvbuf->phead = precvbuf->pskb->head;
287 precvbuf->pdata = precvbuf->pskb->data;
288 precvbuf->ptail = skb_tail_pointer(precvbuf->pskb);
289 precvbuf->pend = skb_end_pointer(precvbuf->pskb);
290 precvbuf->pbuf = precvbuf->pskb->data;
291 } else { /* reuse skb */
292 precvbuf->phead = precvbuf->pskb->head;
293 precvbuf->pdata = precvbuf->pskb->data;
294 precvbuf->ptail = skb_tail_pointer(precvbuf->pskb);
295 precvbuf->pend = skb_end_pointer(precvbuf->pskb);
296 precvbuf->pbuf = precvbuf->pskb->data;
297 precvbuf->reuse = false;
299 purb = precvbuf->purb;
300 /* translate DMA FIFO addr to pipehandle */
301 pipe = ffaddr2pipehdl(pdvobj, addr);
302 usb_fill_bulk_urb(purb, pusbd, pipe,
303 precvbuf->pbuf, MAX_RECVBUF_SZ,
304 r8712_usb_read_port_complete,
306 err = usb_submit_urb(purb, GFP_ATOMIC);
307 if ((err) && (err != (-EPERM)))
314 void r8712_usb_read_port_cancel(struct _adapter *padapter)
317 struct recv_buf *precvbuf;
319 precvbuf = (struct recv_buf *)padapter->recvpriv.precv_buf;
320 for (i = 0; i < NR_RECVBUFF; i++) {
322 usb_kill_urb(precvbuf->purb);
327 void r8712_xmit_bh(void *priv)
330 struct _adapter *padapter = (struct _adapter *)priv;
331 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
333 if ((padapter->bDriverStopped == true) ||
334 (padapter->bSurpriseRemoved == true)) {
335 netdev_err(padapter->pnetdev, "xmit_bh => bDriverStopped or bSurpriseRemoved\n");
338 ret = r8712_xmitframe_complete(padapter, pxmitpriv, NULL);
341 tasklet_hi_schedule(&pxmitpriv->xmit_tasklet);
344 static void usb_write_port_complete(struct urb *purb)
347 struct xmit_frame *pxmitframe = (struct xmit_frame *)purb->context;
348 struct xmit_buf *pxmitbuf = pxmitframe->pxmitbuf;
349 struct _adapter *padapter = pxmitframe->padapter;
350 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
351 struct pkt_attrib *pattrib = &pxmitframe->attrib;
353 switch (pattrib->priority) {
356 pxmitpriv->bkq_cnt--;
360 pxmitpriv->viq_cnt--;
364 pxmitpriv->voq_cnt--;
369 pxmitpriv->beq_cnt--;
372 pxmitpriv->txirp_cnt--;
373 for (i = 0; i < 8; i++) {
374 if (purb == pxmitframe->pxmit_urb[i]) {
375 pxmitframe->bpending[i] = false;
379 if (padapter->bSurpriseRemoved)
381 switch (purb->status) {
385 netdev_warn(padapter->pnetdev,
386 "r8712u: pipe error: (%d)\n", purb->status);
389 /* not to consider tx fragment */
390 r8712_free_xmitframe_ex(pxmitpriv, pxmitframe);
391 r8712_free_xmitbuf(pxmitpriv, pxmitbuf);
392 tasklet_hi_schedule(&pxmitpriv->xmit_tasklet);
395 u32 r8712_usb_write_port(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *wmem)
401 struct urb *purb = NULL;
402 struct _adapter *padapter = (struct _adapter *)pintfhdl->adapter;
403 struct dvobj_priv *pdvobj = (struct dvobj_priv *)&padapter->dvobjpriv;
404 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
405 struct xmit_frame *pxmitframe = (struct xmit_frame *)wmem;
406 struct usb_device *pusbd = pdvobj->pusbdev;
407 struct pkt_attrib *pattrib = &pxmitframe->attrib;
409 if ((padapter->bDriverStopped) || (padapter->bSurpriseRemoved) ||
410 (padapter->pwrctrlpriv.pnp_bstop_trx))
412 for (i = 0; i < 8; i++) {
413 if (pxmitframe->bpending[i] == false) {
414 spin_lock_irqsave(&pxmitpriv->lock, irqL);
415 pxmitpriv->txirp_cnt++;
416 pxmitframe->bpending[i] = true;
417 switch (pattrib->priority) {
420 pxmitpriv->bkq_cnt++;
424 pxmitpriv->viq_cnt++;
428 pxmitpriv->voq_cnt++;
433 pxmitpriv->beq_cnt++;
436 spin_unlock_irqrestore(&pxmitpriv->lock, irqL);
437 pxmitframe->sz[i] = (u16)cnt;
438 purb = pxmitframe->pxmit_urb[i];
443 if (pdvobj->ishighspeed) {
444 if (cnt > 0 && cnt % 512 == 0)
447 if (cnt > 0 && cnt % 64 == 0)
450 /* translate DMA FIFO addr to pipehandle */
451 pipe = ffaddr2pipehdl(pdvobj, addr);
452 if (pxmitpriv->free_xmitbuf_cnt%NR_XMITBUFF == 0)
453 purb->transfer_flags &= (~URB_NO_INTERRUPT);
455 purb->transfer_flags |= URB_NO_INTERRUPT;
458 usb_fill_bulk_urb(purb, pusbd, pipe,
459 pxmitframe->mem_addr,
460 cnt, usb_write_port_complete,
461 pxmitframe); /* context is xmit_frame */
462 status = usb_submit_urb(purb, GFP_ATOMIC);
470 void r8712_usb_write_port_cancel(struct _adapter *padapter)
473 struct xmit_buf *pxmitbuf = (struct xmit_buf *)
474 padapter->xmitpriv.pxmitbuf;
476 for (i = 0; i < NR_XMITBUFF; i++) {
477 for (j = 0; j < 8; j++) {
478 if (pxmitbuf->pxmit_urb[j])
479 usb_kill_urb(pxmitbuf->pxmit_urb[j]);
485 int r8712_usbctrl_vendorreq(struct intf_priv *pintfpriv, u8 request, u16 value,
486 u16 index, void *pdata, u16 len, u8 requesttype)
491 struct dvobj_priv *pdvobjpriv = (struct dvobj_priv *)
493 struct usb_device *udev = pdvobjpriv->pusbdev;
494 /* For mstar platform, mstar suggests the address for USB IO
495 * should be 16 bytes alignment. Trying to fix it here.
497 u8 *palloc_buf, *pIo_buf;
499 palloc_buf = kmalloc((u32)len + 16, GFP_ATOMIC);
500 if (palloc_buf == NULL)
502 pIo_buf = palloc_buf + 16 - ((addr_t)(palloc_buf) & 0x0f);
503 if (requesttype == 0x01) {
504 pipe = usb_rcvctrlpipe(udev, 0); /* read_in */
505 reqtype = RTL871X_VENQT_READ;
507 pipe = usb_sndctrlpipe(udev, 0); /* write_out */
508 reqtype = RTL871X_VENQT_WRITE;
509 memcpy(pIo_buf, pdata, len);
511 status = usb_control_msg(udev, pipe, request, reqtype, value, index,
512 pIo_buf, len, HZ / 2);
513 if (status > 0) { /* Success this control transfer. */
514 if (requesttype == 0x01) {
515 /* For Control read transfer, we have to copy the read
516 * data from pIo_buf to pdata.
518 memcpy(pdata, pIo_buf, status);