Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * usb_ops_linux.c |
| 3 | * |
| 4 | * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved. |
| 5 | * Linux device driver for RTL8192SU |
| 6 | * |
| 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. |
| 10 | * |
| 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 |
| 14 | * more details. |
| 15 | * |
| 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 |
| 19 | * |
| 20 | * Modifications for inclusion into the Linux staging tree are |
| 21 | * Copyright(c) 2010 Larry Finger. All rights reserved. |
| 22 | * |
| 23 | * Contact information: |
| 24 | * WLAN FAE <wlanfae@realtek.com> |
| 25 | * Larry Finger <Larry.Finger@lwfinger.net> |
| 26 | * |
| 27 | ******************************************************************************/ |
| 28 | |
| 29 | #define _HCI_OPS_OS_C_ |
| 30 | |
| 31 | #include "osdep_service.h" |
| 32 | #include "drv_types.h" |
| 33 | #include "osdep_intf.h" |
| 34 | #include "usb_ops.h" |
| 35 | |
| 36 | #define RTL871X_VENQT_READ 0xc0 |
| 37 | #define RTL871X_VENQT_WRITE 0x40 |
| 38 | |
| 39 | struct zero_bulkout_context { |
| 40 | void *pbuf; |
| 41 | void *purb; |
| 42 | void *pirp; |
| 43 | void *padapter; |
| 44 | }; |
| 45 | |
| 46 | #define usb_write_cmd r8712_usb_write_mem |
| 47 | #define usb_write_cmd_complete usb_write_mem_complete |
| 48 | |
| 49 | uint r8712_usb_init_intf_priv(struct intf_priv *pintfpriv) |
| 50 | { |
Ali Bahar | 68e9b24 | 2011-09-04 03:14:07 +0800 | [diff] [blame^] | 51 | pintfpriv->piorw_urb = usb_alloc_urb(0, GFP_ATOMIC); |
Larry Finger | 2865d42 | 2010-08-20 10:15:30 -0500 | [diff] [blame] | 52 | if (!pintfpriv->piorw_urb) |
| 53 | return _FAIL; |
| 54 | sema_init(&(pintfpriv->io_retevt), 0); |
| 55 | return _SUCCESS; |
| 56 | } |
| 57 | |
| 58 | void r8712_usb_unload_intf_priv(struct intf_priv *pintfpriv) |
| 59 | { |
| 60 | if (pintfpriv->piorw_urb) { |
| 61 | usb_kill_urb(pintfpriv->piorw_urb); |
| 62 | usb_free_urb(pintfpriv->piorw_urb); |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | static unsigned int ffaddr2pipehdl(struct dvobj_priv *pdvobj, u32 addr) |
| 67 | { |
| 68 | unsigned int pipe = 0; |
| 69 | struct usb_device *pusbd = pdvobj->pusbdev; |
| 70 | |
| 71 | if (pdvobj->nr_endpoint == 11) { |
| 72 | switch (addr) { |
| 73 | case RTL8712_DMA_BKQ: |
| 74 | pipe = usb_sndbulkpipe(pusbd, 0x07); |
| 75 | break; |
| 76 | case RTL8712_DMA_BEQ: |
| 77 | pipe = usb_sndbulkpipe(pusbd, 0x06); |
| 78 | break; |
| 79 | case RTL8712_DMA_VIQ: |
| 80 | pipe = usb_sndbulkpipe(pusbd, 0x05); |
| 81 | break; |
| 82 | case RTL8712_DMA_VOQ: |
| 83 | pipe = usb_sndbulkpipe(pusbd, 0x04); |
| 84 | break; |
| 85 | case RTL8712_DMA_BCNQ: |
| 86 | pipe = usb_sndbulkpipe(pusbd, 0x0a); |
| 87 | break; |
| 88 | case RTL8712_DMA_BMCQ: /* HI Queue */ |
| 89 | pipe = usb_sndbulkpipe(pusbd, 0x0b); |
| 90 | break; |
| 91 | case RTL8712_DMA_MGTQ: |
| 92 | pipe = usb_sndbulkpipe(pusbd, 0x0c); |
| 93 | break; |
| 94 | case RTL8712_DMA_RX0FF: |
| 95 | pipe = usb_rcvbulkpipe(pusbd, 0x03); /* in */ |
| 96 | break; |
| 97 | case RTL8712_DMA_C2HCMD: |
| 98 | pipe = usb_rcvbulkpipe(pusbd, 0x09); /* in */ |
| 99 | break; |
| 100 | case RTL8712_DMA_H2CCMD: |
| 101 | pipe = usb_sndbulkpipe(pusbd, 0x0d); |
| 102 | break; |
| 103 | } |
| 104 | } else if (pdvobj->nr_endpoint == 6) { |
| 105 | switch (addr) { |
| 106 | case RTL8712_DMA_BKQ: |
| 107 | pipe = usb_sndbulkpipe(pusbd, 0x07); |
| 108 | break; |
| 109 | case RTL8712_DMA_BEQ: |
| 110 | pipe = usb_sndbulkpipe(pusbd, 0x06); |
| 111 | break; |
| 112 | case RTL8712_DMA_VIQ: |
| 113 | pipe = usb_sndbulkpipe(pusbd, 0x05); |
| 114 | break; |
| 115 | case RTL8712_DMA_VOQ: |
| 116 | pipe = usb_sndbulkpipe(pusbd, 0x04); |
| 117 | break; |
| 118 | case RTL8712_DMA_RX0FF: |
| 119 | case RTL8712_DMA_C2HCMD: |
| 120 | pipe = usb_rcvbulkpipe(pusbd, 0x03); /* in */ |
| 121 | break; |
| 122 | case RTL8712_DMA_H2CCMD: |
| 123 | case RTL8712_DMA_BCNQ: |
| 124 | case RTL8712_DMA_BMCQ: |
| 125 | case RTL8712_DMA_MGTQ: |
| 126 | pipe = usb_sndbulkpipe(pusbd, 0x0d); |
| 127 | break; |
| 128 | } |
| 129 | } else if (pdvobj->nr_endpoint == 4) { |
| 130 | switch (addr) { |
| 131 | case RTL8712_DMA_BEQ: |
| 132 | pipe = usb_sndbulkpipe(pusbd, 0x06); |
| 133 | break; |
| 134 | case RTL8712_DMA_VOQ: |
| 135 | pipe = usb_sndbulkpipe(pusbd, 0x04); |
| 136 | break; |
| 137 | case RTL8712_DMA_RX0FF: |
| 138 | case RTL8712_DMA_C2HCMD: |
| 139 | pipe = usb_rcvbulkpipe(pusbd, 0x03); /* in */ |
| 140 | break; |
| 141 | case RTL8712_DMA_H2CCMD: |
| 142 | case RTL8712_DMA_BCNQ: |
| 143 | case RTL8712_DMA_BMCQ: |
| 144 | case RTL8712_DMA_MGTQ: |
| 145 | pipe = usb_sndbulkpipe(pusbd, 0x0d); |
| 146 | break; |
| 147 | } |
| 148 | } else |
| 149 | pipe = 0; |
| 150 | return pipe; |
| 151 | } |
| 152 | |
| 153 | static void usb_write_mem_complete(struct urb *purb) |
| 154 | { |
| 155 | struct io_queue *pio_q = (struct io_queue *)purb->context; |
| 156 | struct intf_hdl *pintf = &(pio_q->intf); |
| 157 | struct intf_priv *pintfpriv = pintf->pintfpriv; |
| 158 | struct _adapter *padapter = (struct _adapter *)pintf->adapter; |
| 159 | |
| 160 | if (purb->status != 0) { |
| 161 | if (purb->status == (-ESHUTDOWN)) |
| 162 | padapter->bDriverStopped = true; |
| 163 | else |
| 164 | padapter->bSurpriseRemoved = true; |
| 165 | } |
| 166 | up(&pintfpriv->io_retevt); |
| 167 | } |
| 168 | |
| 169 | void r8712_usb_write_mem(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *wmem) |
| 170 | { |
| 171 | unsigned int pipe; |
| 172 | int status; |
| 173 | struct _adapter *padapter = (struct _adapter *)pintfhdl->adapter; |
| 174 | struct intf_priv *pintfpriv = pintfhdl->pintfpriv; |
| 175 | struct io_queue *pio_queue = (struct io_queue *)padapter->pio_queue; |
| 176 | struct dvobj_priv *pdvobj = (struct dvobj_priv *)pintfpriv->intf_dev; |
| 177 | struct usb_device *pusbd = pdvobj->pusbdev; |
| 178 | struct urb *piorw_urb = pintfpriv->piorw_urb; |
| 179 | |
| 180 | if ((padapter->bDriverStopped) || (padapter->bSurpriseRemoved) || |
| 181 | (padapter->pwrctrlpriv.pnp_bstop_trx)) |
| 182 | return; |
| 183 | /* translate DMA FIFO addr to pipehandle */ |
| 184 | pipe = ffaddr2pipehdl(pdvobj, addr); |
| 185 | if (pipe == 0) |
| 186 | return; |
| 187 | usb_fill_bulk_urb(piorw_urb, pusbd, pipe, |
| 188 | wmem, cnt, usb_write_mem_complete, |
| 189 | pio_queue); |
| 190 | status = _usb_submit_urb(piorw_urb, GFP_ATOMIC); |
| 191 | _down_sema(&pintfpriv->io_retevt); |
| 192 | } |
| 193 | |
| 194 | static void r8712_usb_read_port_complete(struct urb *purb) |
| 195 | { |
| 196 | uint isevt, *pbuf; |
| 197 | struct recv_buf *precvbuf = (struct recv_buf *)purb->context; |
| 198 | struct _adapter *padapter = (struct _adapter *)precvbuf->adapter; |
| 199 | struct recv_priv *precvpriv = &padapter->recvpriv; |
| 200 | |
| 201 | if (padapter->bSurpriseRemoved || padapter->bDriverStopped) |
| 202 | return; |
| 203 | if (purb->status == 0) { /* SUCCESS */ |
| 204 | if ((purb->actual_length > (MAX_RECVBUF_SZ)) || |
| 205 | (purb->actual_length < RXDESC_SIZE)) { |
| 206 | precvbuf->reuse = true; |
| 207 | r8712_read_port(padapter, precvpriv->ff_hwaddr, 0, |
| 208 | (unsigned char *)precvbuf); |
| 209 | } else { |
| 210 | precvbuf->transfer_len = purb->actual_length; |
| 211 | pbuf = (uint *)precvbuf->pbuf; |
| 212 | isevt = le32_to_cpu(*(pbuf + 1)) & 0x1ff; |
| 213 | if ((isevt & 0x1ff) == 0x1ff) { |
| 214 | r8712_rxcmd_event_hdl(padapter, pbuf); |
| 215 | precvbuf->reuse = true; |
| 216 | r8712_read_port(padapter, precvpriv->ff_hwaddr, |
| 217 | 0, (unsigned char *)precvbuf); |
| 218 | } else { |
| 219 | _pkt *pskb = precvbuf->pskb; |
| 220 | skb_put(pskb, purb->actual_length); |
| 221 | skb_queue_tail(&precvpriv->rx_skb_queue, pskb); |
| 222 | tasklet_hi_schedule(&precvpriv->recv_tasklet); |
| 223 | precvbuf->pskb = NULL; |
| 224 | precvbuf->reuse = false; |
| 225 | r8712_read_port(padapter, precvpriv->ff_hwaddr, |
| 226 | 0, (unsigned char *)precvbuf); |
| 227 | } |
| 228 | } |
| 229 | } else { |
| 230 | switch (purb->status) { |
| 231 | case -EINVAL: |
| 232 | case -EPIPE: |
| 233 | case -ENODEV: |
| 234 | case -ESHUTDOWN: |
| 235 | case -ENOENT: |
| 236 | padapter->bDriverStopped = true; |
| 237 | break; |
| 238 | case -EPROTO: |
| 239 | precvbuf->reuse = true; |
| 240 | r8712_read_port(padapter, precvpriv->ff_hwaddr, 0, |
| 241 | (unsigned char *)precvbuf); |
| 242 | break; |
| 243 | case -EINPROGRESS: |
| 244 | printk(KERN_ERR "r8712u: ERROR: URB IS IN" |
| 245 | " PROGRESS!/n"); |
| 246 | break; |
| 247 | default: |
| 248 | break; |
| 249 | } |
| 250 | } |
| 251 | } |
| 252 | |
| 253 | u32 r8712_usb_read_port(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *rmem) |
| 254 | { |
| 255 | unsigned int pipe; |
| 256 | int err; |
| 257 | u32 tmpaddr = 0; |
| 258 | int alignment = 0; |
| 259 | u32 ret = _SUCCESS; |
| 260 | struct urb *purb = NULL; |
| 261 | struct recv_buf *precvbuf = (struct recv_buf *)rmem; |
| 262 | struct intf_priv *pintfpriv = pintfhdl->pintfpriv; |
| 263 | struct dvobj_priv *pdvobj = (struct dvobj_priv *)pintfpriv->intf_dev; |
| 264 | struct _adapter *adapter = (struct _adapter *)pdvobj->padapter; |
| 265 | struct recv_priv *precvpriv = &adapter->recvpriv; |
| 266 | struct usb_device *pusbd = pdvobj->pusbdev; |
| 267 | |
| 268 | if (adapter->bDriverStopped || adapter->bSurpriseRemoved || |
| 269 | adapter->pwrctrlpriv.pnp_bstop_trx) |
| 270 | return _FAIL; |
| 271 | if ((precvbuf->reuse == false) || (precvbuf->pskb == NULL)) { |
| 272 | precvbuf->pskb = skb_dequeue(&precvpriv->free_recv_skb_queue); |
| 273 | if (NULL != precvbuf->pskb) |
| 274 | precvbuf->reuse = true; |
| 275 | } |
| 276 | if (precvbuf != NULL) { |
| 277 | r8712_init_recvbuf(adapter, precvbuf); |
| 278 | /* re-assign for linux based on skb */ |
| 279 | if ((precvbuf->reuse == false) || (precvbuf->pskb == NULL)) { |
| 280 | precvbuf->pskb = netdev_alloc_skb(adapter->pnetdev, |
| 281 | MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ); |
| 282 | if (precvbuf->pskb == NULL) |
| 283 | return _FAIL; |
| 284 | tmpaddr = (addr_t)precvbuf->pskb->data; |
| 285 | alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1); |
| 286 | skb_reserve(precvbuf->pskb, |
| 287 | (RECVBUFF_ALIGN_SZ - alignment)); |
| 288 | precvbuf->phead = precvbuf->pskb->head; |
| 289 | precvbuf->pdata = precvbuf->pskb->data; |
| 290 | precvbuf->ptail = skb_tail_pointer(precvbuf->pskb); |
| 291 | precvbuf->pend = skb_end_pointer(precvbuf->pskb); |
| 292 | precvbuf->pbuf = precvbuf->pskb->data; |
| 293 | } else { /* reuse skb */ |
| 294 | precvbuf->phead = precvbuf->pskb->head; |
| 295 | precvbuf->pdata = precvbuf->pskb->data; |
| 296 | precvbuf->ptail = skb_tail_pointer(precvbuf->pskb); |
| 297 | precvbuf->pend = skb_end_pointer(precvbuf->pskb); |
| 298 | precvbuf->pbuf = precvbuf->pskb->data; |
| 299 | precvbuf->reuse = false; |
| 300 | } |
| 301 | purb = precvbuf->purb; |
| 302 | /* translate DMA FIFO addr to pipehandle */ |
| 303 | pipe = ffaddr2pipehdl(pdvobj, addr); |
| 304 | usb_fill_bulk_urb(purb, pusbd, pipe, |
| 305 | precvbuf->pbuf, MAX_RECVBUF_SZ, |
| 306 | r8712_usb_read_port_complete, |
| 307 | precvbuf); |
| 308 | err = _usb_submit_urb(purb, GFP_ATOMIC); |
| 309 | if ((err) && (err != (-EPERM))) |
| 310 | ret = _FAIL; |
| 311 | } else |
| 312 | ret = _FAIL; |
| 313 | return ret; |
| 314 | } |
| 315 | |
| 316 | void r8712_usb_read_port_cancel(struct _adapter *padapter) |
| 317 | { |
| 318 | int i; |
| 319 | struct recv_buf *precvbuf; |
| 320 | |
| 321 | precvbuf = (struct recv_buf *)padapter->recvpriv.precv_buf; |
| 322 | for (i = 0; i < NR_RECVBUFF; i++) { |
| 323 | if (precvbuf->purb) |
| 324 | usb_kill_urb(precvbuf->purb); |
| 325 | precvbuf++; |
| 326 | } |
| 327 | } |
| 328 | |
| 329 | void r8712_xmit_bh(void *priv) |
| 330 | { |
| 331 | int ret = false; |
| 332 | struct _adapter *padapter = (struct _adapter *)priv; |
| 333 | struct xmit_priv *pxmitpriv = &padapter->xmitpriv; |
| 334 | |
| 335 | while (1) { |
| 336 | if ((padapter->bDriverStopped == true) || |
| 337 | (padapter->bSurpriseRemoved == true)) { |
| 338 | printk(KERN_ERR "r8712u: xmit_bh => bDriverStopped" |
| 339 | " or bSurpriseRemoved\n"); |
| 340 | break; |
| 341 | } |
| 342 | ret = r8712_xmitframe_complete(padapter, pxmitpriv, NULL); |
| 343 | if (ret == false) |
| 344 | break; |
| 345 | } |
| 346 | } |
| 347 | |
| 348 | static void usb_write_port_complete(struct urb *purb) |
| 349 | { |
| 350 | int i; |
| 351 | struct xmit_frame *pxmitframe = (struct xmit_frame *)purb->context; |
| 352 | struct xmit_buf *pxmitbuf = pxmitframe->pxmitbuf; |
| 353 | struct _adapter *padapter = pxmitframe->padapter; |
| 354 | struct xmit_priv *pxmitpriv = &padapter->xmitpriv; |
| 355 | struct pkt_attrib *pattrib = &pxmitframe->attrib; |
| 356 | |
| 357 | switch (pattrib->priority) { |
| 358 | case 1: |
| 359 | case 2: |
| 360 | pxmitpriv->bkq_cnt--; |
| 361 | break; |
| 362 | case 4: |
| 363 | case 5: |
| 364 | pxmitpriv->viq_cnt--; |
| 365 | break; |
| 366 | case 6: |
| 367 | case 7: |
| 368 | pxmitpriv->voq_cnt--; |
| 369 | break; |
| 370 | case 0: |
| 371 | case 3: |
| 372 | default: |
| 373 | pxmitpriv->beq_cnt--; |
| 374 | break; |
| 375 | } |
| 376 | pxmitpriv->txirp_cnt--; |
| 377 | for (i = 0; i < 8; i++) { |
| 378 | if (purb == pxmitframe->pxmit_urb[i]) { |
| 379 | pxmitframe->bpending[i] = false; |
| 380 | break; |
| 381 | } |
| 382 | } |
| 383 | if (padapter->bSurpriseRemoved) |
| 384 | return; |
| 385 | switch (purb->status) { |
| 386 | case 0: |
| 387 | break; |
| 388 | default: |
| 389 | printk(KERN_WARNING "r8712u: pipe error: (%d)\n", purb->status); |
| 390 | break; |
| 391 | } |
| 392 | /* not to consider tx fragment */ |
| 393 | r8712_free_xmitframe_ex(pxmitpriv, pxmitframe); |
| 394 | r8712_free_xmitbuf(pxmitpriv, pxmitbuf); |
| 395 | tasklet_hi_schedule(&pxmitpriv->xmit_tasklet); |
| 396 | } |
| 397 | |
| 398 | u32 r8712_usb_write_port(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *wmem) |
| 399 | { |
| 400 | unsigned long irqL; |
| 401 | int i, status; |
| 402 | unsigned int pipe; |
| 403 | u32 ret, bwritezero; |
| 404 | struct urb *purb = NULL; |
| 405 | struct _adapter *padapter = (struct _adapter *)pintfhdl->adapter; |
| 406 | struct dvobj_priv *pdvobj = (struct dvobj_priv *)&padapter->dvobjpriv; |
| 407 | struct xmit_priv *pxmitpriv = &padapter->xmitpriv; |
| 408 | struct xmit_frame *pxmitframe = (struct xmit_frame *)wmem; |
| 409 | struct usb_device *pusbd = pdvobj->pusbdev; |
| 410 | struct pkt_attrib *pattrib = &pxmitframe->attrib; |
| 411 | |
| 412 | if ((padapter->bDriverStopped) || (padapter->bSurpriseRemoved) || |
| 413 | (padapter->pwrctrlpriv.pnp_bstop_trx)) |
| 414 | return _FAIL; |
| 415 | for (i = 0; i < 8; i++) { |
| 416 | if (pxmitframe->bpending[i] == false) { |
| 417 | spin_lock_irqsave(&pxmitpriv->lock, irqL); |
| 418 | pxmitpriv->txirp_cnt++; |
| 419 | pxmitframe->bpending[i] = true; |
| 420 | switch (pattrib->priority) { |
| 421 | case 1: |
| 422 | case 2: |
| 423 | pxmitpriv->bkq_cnt++; |
| 424 | break; |
| 425 | case 4: |
| 426 | case 5: |
| 427 | pxmitpriv->viq_cnt++; |
| 428 | break; |
| 429 | case 6: |
| 430 | case 7: |
| 431 | pxmitpriv->voq_cnt++; |
| 432 | break; |
| 433 | case 0: |
| 434 | case 3: |
| 435 | default: |
| 436 | pxmitpriv->beq_cnt++; |
| 437 | break; |
| 438 | } |
| 439 | spin_unlock_irqrestore(&pxmitpriv->lock, irqL); |
| 440 | pxmitframe->sz[i] = (u16)cnt; |
| 441 | purb = pxmitframe->pxmit_urb[i]; |
| 442 | break; |
| 443 | } |
| 444 | } |
| 445 | bwritezero = false; |
| 446 | if (pdvobj->ishighspeed) { |
| 447 | if (cnt > 0 && cnt % 512 == 0) |
| 448 | bwritezero = true; |
| 449 | } else { |
| 450 | if (cnt > 0 && cnt % 64 == 0) |
| 451 | bwritezero = true; |
| 452 | } |
| 453 | /* translate DMA FIFO addr to pipehandle */ |
| 454 | pipe = ffaddr2pipehdl(pdvobj, addr); |
| 455 | if (pxmitpriv->free_xmitbuf_cnt%NR_XMITBUFF == 0) |
| 456 | purb->transfer_flags &= (~URB_NO_INTERRUPT); |
| 457 | else |
| 458 | purb->transfer_flags |= URB_NO_INTERRUPT; |
| 459 | if (bwritezero) |
| 460 | cnt += 8; |
| 461 | usb_fill_bulk_urb(purb, pusbd, pipe, |
| 462 | pxmitframe->mem_addr, |
| 463 | cnt, usb_write_port_complete, |
| 464 | pxmitframe); /* context is xmit_frame */ |
| 465 | status = _usb_submit_urb(purb, GFP_ATOMIC); |
| 466 | if (!status) |
| 467 | ret = _SUCCESS; |
| 468 | else |
| 469 | ret = _FAIL; |
| 470 | return ret; |
| 471 | } |
| 472 | |
| 473 | void r8712_usb_write_port_cancel(struct _adapter *padapter) |
| 474 | { |
| 475 | int i, j; |
| 476 | struct xmit_buf *pxmitbuf = (struct xmit_buf *) |
| 477 | padapter->xmitpriv.pxmitbuf; |
| 478 | |
| 479 | for (i = 0; i < NR_XMITBUFF; i++) { |
| 480 | for (j = 0; j < 8; j++) { |
| 481 | if (pxmitbuf->pxmit_urb[j]) |
| 482 | usb_kill_urb(pxmitbuf->pxmit_urb[j]); |
| 483 | } |
| 484 | pxmitbuf++; |
| 485 | } |
| 486 | } |
| 487 | |
| 488 | int r8712_usbctrl_vendorreq(struct intf_priv *pintfpriv, u8 request, u16 value, |
| 489 | u16 index, void *pdata, u16 len, u8 requesttype) |
| 490 | { |
| 491 | unsigned int pipe; |
| 492 | int status; |
| 493 | u8 reqtype; |
| 494 | struct dvobj_priv *pdvobjpriv = (struct dvobj_priv *) |
| 495 | pintfpriv->intf_dev; |
| 496 | struct usb_device *udev = pdvobjpriv->pusbdev; |
| 497 | /* For mstar platform, mstar suggests the address for USB IO |
| 498 | * should be 16 bytes alignment. Trying to fix it here. |
| 499 | */ |
| 500 | u8 *palloc_buf, *pIo_buf; |
| 501 | |
| 502 | palloc_buf = _malloc((u32) len + 16); |
| 503 | if (palloc_buf == NULL) { |
| 504 | printk(KERN_ERR "r8712u: [%s] Can't alloc memory for vendor" |
| 505 | " request\n", __func__); |
| 506 | return -1; |
| 507 | } |
| 508 | pIo_buf = palloc_buf + 16 - ((addr_t)(palloc_buf) & 0x0f); |
| 509 | if (requesttype == 0x01) { |
| 510 | pipe = usb_rcvctrlpipe(udev, 0); /* read_in */ |
| 511 | reqtype = RTL871X_VENQT_READ; |
| 512 | } else { |
| 513 | pipe = usb_sndctrlpipe(udev, 0); /* write_out */ |
| 514 | reqtype = RTL871X_VENQT_WRITE; |
| 515 | memcpy(pIo_buf, pdata, len); |
| 516 | } |
| 517 | status = usb_control_msg(udev, pipe, request, reqtype, value, index, |
| 518 | pIo_buf, len, HZ / 2); |
| 519 | if (status > 0) { /* Success this control transfer. */ |
| 520 | if (requesttype == 0x01) { |
| 521 | /* For Control read transfer, we have to copy the read |
| 522 | * data from pIo_buf to pdata. |
| 523 | */ |
| 524 | memcpy(pdata, pIo_buf, status); |
| 525 | } |
| 526 | } |
| 527 | kfree(palloc_buf); |
| 528 | return status; |
| 529 | } |