au0828-video.c revision b530a447bb588fdf43fdf4eb909e4ee1921d47ac
1/* 2 * Auvitek AU0828 USB Bridge (Analog video support) 3 * 4 * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org> 5 * Copyright (C) 2005-2008 Auvitek International, Ltd. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * As published by the Free Software Foundation; either version 2 10 * of the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 20 * 02110-1301, USA. 21 */ 22 23/* Developer Notes: 24 * 25 * VBI support is not yet working 26 * The hardware scaler supported is unimplemented 27 * AC97 audio support is unimplemented (only i2s audio mode) 28 * 29 */ 30 31#include <linux/module.h> 32#include <linux/slab.h> 33#include <linux/init.h> 34#include <linux/device.h> 35#include <linux/suspend.h> 36#include <media/v4l2-common.h> 37#include <media/v4l2-ioctl.h> 38#include <media/v4l2-chip-ident.h> 39#include <media/tuner.h> 40#include "au0828.h" 41#include "au0828-reg.h" 42 43static DEFINE_MUTEX(au0828_sysfs_lock); 44 45/* ------------------------------------------------------------------ 46 Videobuf operations 47 ------------------------------------------------------------------*/ 48 49static unsigned int isoc_debug; 50module_param(isoc_debug, int, 0644); 51MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); 52 53#define au0828_isocdbg(fmt, arg...) \ 54do {\ 55 if (isoc_debug) { \ 56 printk(KERN_INFO "au0828 %s :"fmt, \ 57 __func__ , ##arg); \ 58 } \ 59 } while (0) 60 61static inline void print_err_status(struct au0828_dev *dev, 62 int packet, int status) 63{ 64 char *errmsg = "Unknown"; 65 66 switch (status) { 67 case -ENOENT: 68 errmsg = "unlinked synchronuously"; 69 break; 70 case -ECONNRESET: 71 errmsg = "unlinked asynchronuously"; 72 break; 73 case -ENOSR: 74 errmsg = "Buffer error (overrun)"; 75 break; 76 case -EPIPE: 77 errmsg = "Stalled (device not responding)"; 78 break; 79 case -EOVERFLOW: 80 errmsg = "Babble (bad cable?)"; 81 break; 82 case -EPROTO: 83 errmsg = "Bit-stuff error (bad cable?)"; 84 break; 85 case -EILSEQ: 86 errmsg = "CRC/Timeout (could be anything)"; 87 break; 88 case -ETIME: 89 errmsg = "Device does not respond"; 90 break; 91 } 92 if (packet < 0) { 93 au0828_isocdbg("URB status %d [%s].\n", status, errmsg); 94 } else { 95 au0828_isocdbg("URB packet %d, status %d [%s].\n", 96 packet, status, errmsg); 97 } 98} 99 100static int check_dev(struct au0828_dev *dev) 101{ 102 if (dev->dev_state & DEV_DISCONNECTED) { 103 printk(KERN_INFO "v4l2 ioctl: device not present\n"); 104 return -ENODEV; 105 } 106 107 if (dev->dev_state & DEV_MISCONFIGURED) { 108 printk(KERN_INFO "v4l2 ioctl: device is misconfigured; " 109 "close and open it again\n"); 110 return -EIO; 111 } 112 return 0; 113} 114 115/* 116 * IRQ callback, called by URB callback 117 */ 118static void au0828_irq_callback(struct urb *urb) 119{ 120 struct au0828_dmaqueue *dma_q = urb->context; 121 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 122 unsigned long flags = 0; 123 int i; 124 125 switch (urb->status) { 126 case 0: /* success */ 127 case -ETIMEDOUT: /* NAK */ 128 break; 129 case -ECONNRESET: /* kill */ 130 case -ENOENT: 131 case -ESHUTDOWN: 132 au0828_isocdbg("au0828_irq_callback called: status kill\n"); 133 return; 134 default: /* unknown error */ 135 au0828_isocdbg("urb completition error %d.\n", urb->status); 136 break; 137 } 138 139 /* Copy data from URB */ 140 spin_lock_irqsave(&dev->slock, flags); 141 dev->isoc_ctl.isoc_copy(dev, urb); 142 spin_unlock_irqrestore(&dev->slock, flags); 143 144 /* Reset urb buffers */ 145 for (i = 0; i < urb->number_of_packets; i++) { 146 urb->iso_frame_desc[i].status = 0; 147 urb->iso_frame_desc[i].actual_length = 0; 148 } 149 urb->status = 0; 150 151 urb->status = usb_submit_urb(urb, GFP_ATOMIC); 152 if (urb->status) { 153 au0828_isocdbg("urb resubmit failed (error=%i)\n", 154 urb->status); 155 } 156} 157 158/* 159 * Stop and Deallocate URBs 160 */ 161static void au0828_uninit_isoc(struct au0828_dev *dev) 162{ 163 struct urb *urb; 164 int i; 165 166 au0828_isocdbg("au0828: called au0828_uninit_isoc\n"); 167 168 dev->isoc_ctl.nfields = -1; 169 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 170 urb = dev->isoc_ctl.urb[i]; 171 if (urb) { 172 if (!irqs_disabled()) 173 usb_kill_urb(urb); 174 else 175 usb_unlink_urb(urb); 176 177 if (dev->isoc_ctl.transfer_buffer[i]) { 178 usb_free_coherent(dev->usbdev, 179 urb->transfer_buffer_length, 180 dev->isoc_ctl.transfer_buffer[i], 181 urb->transfer_dma); 182 } 183 usb_free_urb(urb); 184 dev->isoc_ctl.urb[i] = NULL; 185 } 186 dev->isoc_ctl.transfer_buffer[i] = NULL; 187 } 188 189 kfree(dev->isoc_ctl.urb); 190 kfree(dev->isoc_ctl.transfer_buffer); 191 192 dev->isoc_ctl.urb = NULL; 193 dev->isoc_ctl.transfer_buffer = NULL; 194 dev->isoc_ctl.num_bufs = 0; 195} 196 197/* 198 * Allocate URBs and start IRQ 199 */ 200static int au0828_init_isoc(struct au0828_dev *dev, int max_packets, 201 int num_bufs, int max_pkt_size, 202 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb)) 203{ 204 struct au0828_dmaqueue *dma_q = &dev->vidq; 205 int i; 206 int sb_size, pipe; 207 struct urb *urb; 208 int j, k; 209 int rc; 210 211 au0828_isocdbg("au0828: called au0828_prepare_isoc\n"); 212 213 /* De-allocates all pending stuff */ 214 au0828_uninit_isoc(dev); 215 216 dev->isoc_ctl.isoc_copy = isoc_copy; 217 dev->isoc_ctl.num_bufs = num_bufs; 218 219 dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL); 220 if (!dev->isoc_ctl.urb) { 221 au0828_isocdbg("cannot alloc memory for usb buffers\n"); 222 return -ENOMEM; 223 } 224 225 dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs, 226 GFP_KERNEL); 227 if (!dev->isoc_ctl.transfer_buffer) { 228 au0828_isocdbg("cannot allocate memory for usb transfer\n"); 229 kfree(dev->isoc_ctl.urb); 230 return -ENOMEM; 231 } 232 233 dev->isoc_ctl.max_pkt_size = max_pkt_size; 234 dev->isoc_ctl.buf = NULL; 235 236 sb_size = max_packets * dev->isoc_ctl.max_pkt_size; 237 238 /* allocate urbs and transfer buffers */ 239 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 240 urb = usb_alloc_urb(max_packets, GFP_KERNEL); 241 if (!urb) { 242 au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i); 243 au0828_uninit_isoc(dev); 244 return -ENOMEM; 245 } 246 dev->isoc_ctl.urb[i] = urb; 247 248 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev, 249 sb_size, GFP_KERNEL, &urb->transfer_dma); 250 if (!dev->isoc_ctl.transfer_buffer[i]) { 251 printk("unable to allocate %i bytes for transfer" 252 " buffer %i%s\n", 253 sb_size, i, 254 in_interrupt() ? " while in int" : ""); 255 au0828_uninit_isoc(dev); 256 return -ENOMEM; 257 } 258 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size); 259 260 pipe = usb_rcvisocpipe(dev->usbdev, 261 dev->isoc_in_endpointaddr), 262 263 usb_fill_int_urb(urb, dev->usbdev, pipe, 264 dev->isoc_ctl.transfer_buffer[i], sb_size, 265 au0828_irq_callback, dma_q, 1); 266 267 urb->number_of_packets = max_packets; 268 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; 269 270 k = 0; 271 for (j = 0; j < max_packets; j++) { 272 urb->iso_frame_desc[j].offset = k; 273 urb->iso_frame_desc[j].length = 274 dev->isoc_ctl.max_pkt_size; 275 k += dev->isoc_ctl.max_pkt_size; 276 } 277 } 278 279 init_waitqueue_head(&dma_q->wq); 280 281 /* submit urbs and enables IRQ */ 282 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 283 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 284 if (rc) { 285 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 286 i, rc); 287 au0828_uninit_isoc(dev); 288 return rc; 289 } 290 } 291 292 return 0; 293} 294 295/* 296 * Announces that a buffer were filled and request the next 297 */ 298static inline void buffer_filled(struct au0828_dev *dev, 299 struct au0828_dmaqueue *dma_q, 300 struct au0828_buffer *buf) 301{ 302 /* Advice that buffer was filled */ 303 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i); 304 305 buf->vb.state = VIDEOBUF_DONE; 306 buf->vb.field_count++; 307 v4l2_get_timestamp(&buf->vb.ts); 308 309 dev->isoc_ctl.buf = NULL; 310 311 list_del(&buf->vb.queue); 312 wake_up(&buf->vb.done); 313} 314 315static inline void vbi_buffer_filled(struct au0828_dev *dev, 316 struct au0828_dmaqueue *dma_q, 317 struct au0828_buffer *buf) 318{ 319 /* Advice that buffer was filled */ 320 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i); 321 322 buf->vb.state = VIDEOBUF_DONE; 323 buf->vb.field_count++; 324 v4l2_get_timestamp(&buf->vb.ts); 325 326 dev->isoc_ctl.vbi_buf = NULL; 327 328 list_del(&buf->vb.queue); 329 wake_up(&buf->vb.done); 330} 331 332/* 333 * Identify the buffer header type and properly handles 334 */ 335static void au0828_copy_video(struct au0828_dev *dev, 336 struct au0828_dmaqueue *dma_q, 337 struct au0828_buffer *buf, 338 unsigned char *p, 339 unsigned char *outp, unsigned long len) 340{ 341 void *fieldstart, *startwrite, *startread; 342 int linesdone, currlinedone, offset, lencopy, remain; 343 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */ 344 345 if (len == 0) 346 return; 347 348 if (dma_q->pos + len > buf->vb.size) 349 len = buf->vb.size - dma_q->pos; 350 351 startread = p; 352 remain = len; 353 354 /* Interlaces frame */ 355 if (buf->top_field) 356 fieldstart = outp; 357 else 358 fieldstart = outp + bytesperline; 359 360 linesdone = dma_q->pos / bytesperline; 361 currlinedone = dma_q->pos % bytesperline; 362 offset = linesdone * bytesperline * 2 + currlinedone; 363 startwrite = fieldstart + offset; 364 lencopy = bytesperline - currlinedone; 365 lencopy = lencopy > remain ? remain : lencopy; 366 367 if ((char *)startwrite + lencopy > (char *)outp + buf->vb.size) { 368 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n", 369 ((char *)startwrite + lencopy) - 370 ((char *)outp + buf->vb.size)); 371 remain = (char *)outp + buf->vb.size - (char *)startwrite; 372 lencopy = remain; 373 } 374 if (lencopy <= 0) 375 return; 376 memcpy(startwrite, startread, lencopy); 377 378 remain -= lencopy; 379 380 while (remain > 0) { 381 startwrite += lencopy + bytesperline; 382 startread += lencopy; 383 if (bytesperline > remain) 384 lencopy = remain; 385 else 386 lencopy = bytesperline; 387 388 if ((char *)startwrite + lencopy > (char *)outp + 389 buf->vb.size) { 390 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n", 391 ((char *)startwrite + lencopy) - 392 ((char *)outp + buf->vb.size)); 393 lencopy = remain = (char *)outp + buf->vb.size - 394 (char *)startwrite; 395 } 396 if (lencopy <= 0) 397 break; 398 399 memcpy(startwrite, startread, lencopy); 400 401 remain -= lencopy; 402 } 403 404 if (offset > 1440) { 405 /* We have enough data to check for greenscreen */ 406 if (outp[0] < 0x60 && outp[1440] < 0x60) 407 dev->greenscreen_detected = 1; 408 } 409 410 dma_q->pos += len; 411} 412 413/* 414 * video-buf generic routine to get the next available buffer 415 */ 416static inline void get_next_buf(struct au0828_dmaqueue *dma_q, 417 struct au0828_buffer **buf) 418{ 419 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 420 421 if (list_empty(&dma_q->active)) { 422 au0828_isocdbg("No active queue to serve\n"); 423 dev->isoc_ctl.buf = NULL; 424 *buf = NULL; 425 return; 426 } 427 428 /* Get the next buffer */ 429 *buf = list_entry(dma_q->active.next, struct au0828_buffer, vb.queue); 430 dev->isoc_ctl.buf = *buf; 431 432 return; 433} 434 435static void au0828_copy_vbi(struct au0828_dev *dev, 436 struct au0828_dmaqueue *dma_q, 437 struct au0828_buffer *buf, 438 unsigned char *p, 439 unsigned char *outp, unsigned long len) 440{ 441 unsigned char *startwrite, *startread; 442 int bytesperline; 443 int i, j = 0; 444 445 if (dev == NULL) { 446 au0828_isocdbg("dev is null\n"); 447 return; 448 } 449 450 if (dma_q == NULL) { 451 au0828_isocdbg("dma_q is null\n"); 452 return; 453 } 454 if (buf == NULL) 455 return; 456 if (p == NULL) { 457 au0828_isocdbg("p is null\n"); 458 return; 459 } 460 if (outp == NULL) { 461 au0828_isocdbg("outp is null\n"); 462 return; 463 } 464 465 bytesperline = dev->vbi_width; 466 467 if (dma_q->pos + len > buf->vb.size) 468 len = buf->vb.size - dma_q->pos; 469 470 startread = p; 471 startwrite = outp + (dma_q->pos / 2); 472 473 /* Make sure the bottom field populates the second half of the frame */ 474 if (buf->top_field == 0) 475 startwrite += bytesperline * dev->vbi_height; 476 477 for (i = 0; i < len; i += 2) 478 startwrite[j++] = startread[i+1]; 479 480 dma_q->pos += len; 481} 482 483 484/* 485 * video-buf generic routine to get the next available VBI buffer 486 */ 487static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q, 488 struct au0828_buffer **buf) 489{ 490 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq); 491 char *outp; 492 493 if (list_empty(&dma_q->active)) { 494 au0828_isocdbg("No active queue to serve\n"); 495 dev->isoc_ctl.vbi_buf = NULL; 496 *buf = NULL; 497 return; 498 } 499 500 /* Get the next buffer */ 501 *buf = list_entry(dma_q->active.next, struct au0828_buffer, vb.queue); 502 /* Cleans up buffer - Useful for testing for frame/URB loss */ 503 outp = videobuf_to_vmalloc(&(*buf)->vb); 504 memset(outp, 0x00, (*buf)->vb.size); 505 506 dev->isoc_ctl.vbi_buf = *buf; 507 508 return; 509} 510 511/* 512 * Controls the isoc copy of each urb packet 513 */ 514static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb) 515{ 516 struct au0828_buffer *buf; 517 struct au0828_buffer *vbi_buf; 518 struct au0828_dmaqueue *dma_q = urb->context; 519 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq; 520 unsigned char *outp = NULL; 521 unsigned char *vbioutp = NULL; 522 int i, len = 0, rc = 1; 523 unsigned char *p; 524 unsigned char fbyte; 525 unsigned int vbi_field_size; 526 unsigned int remain, lencopy; 527 528 if (!dev) 529 return 0; 530 531 if ((dev->dev_state & DEV_DISCONNECTED) || 532 (dev->dev_state & DEV_MISCONFIGURED)) 533 return 0; 534 535 if (urb->status < 0) { 536 print_err_status(dev, -1, urb->status); 537 if (urb->status == -ENOENT) 538 return 0; 539 } 540 541 buf = dev->isoc_ctl.buf; 542 if (buf != NULL) 543 outp = videobuf_to_vmalloc(&buf->vb); 544 545 vbi_buf = dev->isoc_ctl.vbi_buf; 546 if (vbi_buf != NULL) 547 vbioutp = videobuf_to_vmalloc(&vbi_buf->vb); 548 549 for (i = 0; i < urb->number_of_packets; i++) { 550 int status = urb->iso_frame_desc[i].status; 551 552 if (status < 0) { 553 print_err_status(dev, i, status); 554 if (urb->iso_frame_desc[i].status != -EPROTO) 555 continue; 556 } 557 558 if (urb->iso_frame_desc[i].actual_length <= 0) 559 continue; 560 561 if (urb->iso_frame_desc[i].actual_length > 562 dev->max_pkt_size) { 563 au0828_isocdbg("packet bigger than packet size"); 564 continue; 565 } 566 567 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset; 568 fbyte = p[0]; 569 len = urb->iso_frame_desc[i].actual_length - 4; 570 p += 4; 571 572 if (fbyte & 0x80) { 573 len -= 4; 574 p += 4; 575 au0828_isocdbg("Video frame %s\n", 576 (fbyte & 0x40) ? "odd" : "even"); 577 if (fbyte & 0x40) { 578 /* VBI */ 579 if (vbi_buf != NULL) 580 vbi_buffer_filled(dev, 581 vbi_dma_q, 582 vbi_buf); 583 vbi_get_next_buf(vbi_dma_q, &vbi_buf); 584 if (vbi_buf == NULL) 585 vbioutp = NULL; 586 else 587 vbioutp = videobuf_to_vmalloc( 588 &vbi_buf->vb); 589 590 /* Video */ 591 if (buf != NULL) 592 buffer_filled(dev, dma_q, buf); 593 get_next_buf(dma_q, &buf); 594 if (buf == NULL) 595 outp = NULL; 596 else 597 outp = videobuf_to_vmalloc(&buf->vb); 598 599 /* As long as isoc traffic is arriving, keep 600 resetting the timer */ 601 if (dev->vid_timeout_running) 602 mod_timer(&dev->vid_timeout, 603 jiffies + (HZ / 10)); 604 if (dev->vbi_timeout_running) 605 mod_timer(&dev->vbi_timeout, 606 jiffies + (HZ / 10)); 607 } 608 609 if (buf != NULL) { 610 if (fbyte & 0x40) 611 buf->top_field = 1; 612 else 613 buf->top_field = 0; 614 } 615 616 if (vbi_buf != NULL) { 617 if (fbyte & 0x40) 618 vbi_buf->top_field = 1; 619 else 620 vbi_buf->top_field = 0; 621 } 622 623 dev->vbi_read = 0; 624 vbi_dma_q->pos = 0; 625 dma_q->pos = 0; 626 } 627 628 vbi_field_size = dev->vbi_width * dev->vbi_height * 2; 629 if (dev->vbi_read < vbi_field_size) { 630 remain = vbi_field_size - dev->vbi_read; 631 if (len < remain) 632 lencopy = len; 633 else 634 lencopy = remain; 635 636 if (vbi_buf != NULL) 637 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p, 638 vbioutp, len); 639 640 len -= lencopy; 641 p += lencopy; 642 dev->vbi_read += lencopy; 643 } 644 645 if (dev->vbi_read >= vbi_field_size && buf != NULL) 646 au0828_copy_video(dev, dma_q, buf, p, outp, len); 647 } 648 return rc; 649} 650 651static int 652buffer_setup(struct videobuf_queue *vq, unsigned int *count, 653 unsigned int *size) 654{ 655 struct au0828_fh *fh = vq->priv_data; 656 *size = (fh->dev->width * fh->dev->height * 16 + 7) >> 3; 657 658 if (0 == *count) 659 *count = AU0828_DEF_BUF; 660 661 if (*count < AU0828_MIN_BUF) 662 *count = AU0828_MIN_BUF; 663 return 0; 664} 665 666/* This is called *without* dev->slock held; please keep it that way */ 667static void free_buffer(struct videobuf_queue *vq, struct au0828_buffer *buf) 668{ 669 struct au0828_fh *fh = vq->priv_data; 670 struct au0828_dev *dev = fh->dev; 671 unsigned long flags = 0; 672 if (in_interrupt()) 673 BUG(); 674 675 /* We used to wait for the buffer to finish here, but this didn't work 676 because, as we were keeping the state as VIDEOBUF_QUEUED, 677 videobuf_queue_cancel marked it as finished for us. 678 (Also, it could wedge forever if the hardware was misconfigured.) 679 680 This should be safe; by the time we get here, the buffer isn't 681 queued anymore. If we ever start marking the buffers as 682 VIDEOBUF_ACTIVE, it won't be, though. 683 */ 684 spin_lock_irqsave(&dev->slock, flags); 685 if (dev->isoc_ctl.buf == buf) 686 dev->isoc_ctl.buf = NULL; 687 spin_unlock_irqrestore(&dev->slock, flags); 688 689 videobuf_vmalloc_free(&buf->vb); 690 buf->vb.state = VIDEOBUF_NEEDS_INIT; 691} 692 693static int 694buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb, 695 enum v4l2_field field) 696{ 697 struct au0828_fh *fh = vq->priv_data; 698 struct au0828_buffer *buf = container_of(vb, struct au0828_buffer, vb); 699 struct au0828_dev *dev = fh->dev; 700 int rc = 0, urb_init = 0; 701 702 buf->vb.size = (fh->dev->width * fh->dev->height * 16 + 7) >> 3; 703 704 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) 705 return -EINVAL; 706 707 buf->vb.width = dev->width; 708 buf->vb.height = dev->height; 709 buf->vb.field = field; 710 711 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { 712 rc = videobuf_iolock(vq, &buf->vb, NULL); 713 if (rc < 0) { 714 printk(KERN_INFO "videobuf_iolock failed\n"); 715 goto fail; 716 } 717 } 718 719 if (!dev->isoc_ctl.num_bufs) 720 urb_init = 1; 721 722 if (urb_init) { 723 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB, 724 AU0828_MAX_ISO_BUFS, dev->max_pkt_size, 725 au0828_isoc_copy); 726 if (rc < 0) { 727 printk(KERN_INFO "au0828_init_isoc failed\n"); 728 goto fail; 729 } 730 } 731 732 buf->vb.state = VIDEOBUF_PREPARED; 733 return 0; 734 735fail: 736 free_buffer(vq, buf); 737 return rc; 738} 739 740static void 741buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb) 742{ 743 struct au0828_buffer *buf = container_of(vb, 744 struct au0828_buffer, 745 vb); 746 struct au0828_fh *fh = vq->priv_data; 747 struct au0828_dev *dev = fh->dev; 748 struct au0828_dmaqueue *vidq = &dev->vidq; 749 750 buf->vb.state = VIDEOBUF_QUEUED; 751 list_add_tail(&buf->vb.queue, &vidq->active); 752} 753 754static void buffer_release(struct videobuf_queue *vq, 755 struct videobuf_buffer *vb) 756{ 757 struct au0828_buffer *buf = container_of(vb, 758 struct au0828_buffer, 759 vb); 760 761 free_buffer(vq, buf); 762} 763 764static struct videobuf_queue_ops au0828_video_qops = { 765 .buf_setup = buffer_setup, 766 .buf_prepare = buffer_prepare, 767 .buf_queue = buffer_queue, 768 .buf_release = buffer_release, 769}; 770 771/* ------------------------------------------------------------------ 772 V4L2 interface 773 ------------------------------------------------------------------*/ 774 775static int au0828_i2s_init(struct au0828_dev *dev) 776{ 777 /* Enable i2s mode */ 778 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01); 779 return 0; 780} 781 782/* 783 * Auvitek au0828 analog stream enable 784 * Please set interface0 to AS5 before enable the stream 785 */ 786static int au0828_analog_stream_enable(struct au0828_dev *d) 787{ 788 dprintk(1, "au0828_analog_stream_enable called\n"); 789 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00); 790 au0828_writereg(d, 0x106, 0x00); 791 /* set x position */ 792 au0828_writereg(d, 0x110, 0x00); 793 au0828_writereg(d, 0x111, 0x00); 794 au0828_writereg(d, 0x114, 0xa0); 795 au0828_writereg(d, 0x115, 0x05); 796 /* set y position */ 797 au0828_writereg(d, 0x112, 0x00); 798 au0828_writereg(d, 0x113, 0x00); 799 au0828_writereg(d, 0x116, 0xf2); 800 au0828_writereg(d, 0x117, 0x00); 801 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3); 802 803 return 0; 804} 805 806int au0828_analog_stream_disable(struct au0828_dev *d) 807{ 808 dprintk(1, "au0828_analog_stream_disable called\n"); 809 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0); 810 return 0; 811} 812 813static void au0828_analog_stream_reset(struct au0828_dev *dev) 814{ 815 dprintk(1, "au0828_analog_stream_reset called\n"); 816 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0); 817 mdelay(30); 818 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3); 819} 820 821/* 822 * Some operations needs to stop current streaming 823 */ 824static int au0828_stream_interrupt(struct au0828_dev *dev) 825{ 826 int ret = 0; 827 828 dev->stream_state = STREAM_INTERRUPT; 829 if (dev->dev_state == DEV_DISCONNECTED) 830 return -ENODEV; 831 else if (ret) { 832 dev->dev_state = DEV_MISCONFIGURED; 833 dprintk(1, "%s device is misconfigured!\n", __func__); 834 return ret; 835 } 836 return 0; 837} 838 839/* 840 * au0828_release_resources 841 * unregister v4l2 devices 842 */ 843void au0828_analog_unregister(struct au0828_dev *dev) 844{ 845 dprintk(1, "au0828_release_resources called\n"); 846 mutex_lock(&au0828_sysfs_lock); 847 848 if (dev->vdev) 849 video_unregister_device(dev->vdev); 850 if (dev->vbi_dev) 851 video_unregister_device(dev->vbi_dev); 852 853 mutex_unlock(&au0828_sysfs_lock); 854} 855 856 857/* Usage lock check functions */ 858static int res_get(struct au0828_fh *fh, unsigned int bit) 859{ 860 struct au0828_dev *dev = fh->dev; 861 862 if (fh->resources & bit) 863 /* have it already allocated */ 864 return 1; 865 866 /* is it free? */ 867 if (dev->resources & bit) { 868 /* no, someone else uses it */ 869 return 0; 870 } 871 /* it's free, grab it */ 872 fh->resources |= bit; 873 dev->resources |= bit; 874 dprintk(1, "res: get %d\n", bit); 875 876 return 1; 877} 878 879static int res_check(struct au0828_fh *fh, unsigned int bit) 880{ 881 return fh->resources & bit; 882} 883 884static int res_locked(struct au0828_dev *dev, unsigned int bit) 885{ 886 return dev->resources & bit; 887} 888 889static void res_free(struct au0828_fh *fh, unsigned int bits) 890{ 891 struct au0828_dev *dev = fh->dev; 892 893 BUG_ON((fh->resources & bits) != bits); 894 895 fh->resources &= ~bits; 896 dev->resources &= ~bits; 897 dprintk(1, "res: put %d\n", bits); 898} 899 900static int get_ressource(struct au0828_fh *fh) 901{ 902 switch (fh->type) { 903 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 904 return AU0828_RESOURCE_VIDEO; 905 case V4L2_BUF_TYPE_VBI_CAPTURE: 906 return AU0828_RESOURCE_VBI; 907 default: 908 BUG(); 909 return 0; 910 } 911} 912 913/* This function ensures that video frames continue to be delivered even if 914 the ITU-656 input isn't receiving any data (thereby preventing applications 915 such as tvtime from hanging) */ 916static void au0828_vid_buffer_timeout(unsigned long data) 917{ 918 struct au0828_dev *dev = (struct au0828_dev *) data; 919 struct au0828_dmaqueue *dma_q = &dev->vidq; 920 struct au0828_buffer *buf; 921 unsigned char *vid_data; 922 unsigned long flags = 0; 923 924 spin_lock_irqsave(&dev->slock, flags); 925 926 buf = dev->isoc_ctl.buf; 927 if (buf != NULL) { 928 vid_data = videobuf_to_vmalloc(&buf->vb); 929 memset(vid_data, 0x00, buf->vb.size); /* Blank green frame */ 930 buffer_filled(dev, dma_q, buf); 931 } 932 get_next_buf(dma_q, &buf); 933 934 if (dev->vid_timeout_running == 1) 935 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 936 937 spin_unlock_irqrestore(&dev->slock, flags); 938} 939 940static void au0828_vbi_buffer_timeout(unsigned long data) 941{ 942 struct au0828_dev *dev = (struct au0828_dev *) data; 943 struct au0828_dmaqueue *dma_q = &dev->vbiq; 944 struct au0828_buffer *buf; 945 unsigned char *vbi_data; 946 unsigned long flags = 0; 947 948 spin_lock_irqsave(&dev->slock, flags); 949 950 buf = dev->isoc_ctl.vbi_buf; 951 if (buf != NULL) { 952 vbi_data = videobuf_to_vmalloc(&buf->vb); 953 memset(vbi_data, 0x00, buf->vb.size); 954 vbi_buffer_filled(dev, dma_q, buf); 955 } 956 vbi_get_next_buf(dma_q, &buf); 957 958 if (dev->vbi_timeout_running == 1) 959 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 960 spin_unlock_irqrestore(&dev->slock, flags); 961} 962 963 964static int au0828_v4l2_open(struct file *filp) 965{ 966 int ret = 0; 967 struct video_device *vdev = video_devdata(filp); 968 struct au0828_dev *dev = video_drvdata(filp); 969 struct au0828_fh *fh; 970 int type; 971 972 switch (vdev->vfl_type) { 973 case VFL_TYPE_GRABBER: 974 type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 975 break; 976 case VFL_TYPE_VBI: 977 type = V4L2_BUF_TYPE_VBI_CAPTURE; 978 break; 979 default: 980 return -EINVAL; 981 } 982 983 fh = kzalloc(sizeof(struct au0828_fh), GFP_KERNEL); 984 if (NULL == fh) { 985 dprintk(1, "Failed allocate au0828_fh struct!\n"); 986 return -ENOMEM; 987 } 988 989 fh->type = type; 990 fh->dev = dev; 991 filp->private_data = fh; 992 993 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) { 994 /* set au0828 interface0 to AS5 here again */ 995 ret = usb_set_interface(dev->usbdev, 0, 5); 996 if (ret < 0) { 997 printk(KERN_INFO "Au0828 can't set alternate to 5!\n"); 998 return -EBUSY; 999 } 1000 dev->width = NTSC_STD_W; 1001 dev->height = NTSC_STD_H; 1002 dev->frame_size = dev->width * dev->height * 2; 1003 dev->field_size = dev->width * dev->height; 1004 dev->bytesperline = dev->width * 2; 1005 1006 au0828_analog_stream_enable(dev); 1007 au0828_analog_stream_reset(dev); 1008 1009 /* If we were doing ac97 instead of i2s, it would go here...*/ 1010 au0828_i2s_init(dev); 1011 1012 dev->stream_state = STREAM_OFF; 1013 dev->dev_state |= DEV_INITIALIZED; 1014 } 1015 1016 dev->users++; 1017 1018 videobuf_queue_vmalloc_init(&fh->vb_vidq, &au0828_video_qops, 1019 NULL, &dev->slock, 1020 V4L2_BUF_TYPE_VIDEO_CAPTURE, 1021 V4L2_FIELD_INTERLACED, 1022 sizeof(struct au0828_buffer), fh, 1023 &dev->lock); 1024 1025 /* VBI Setup */ 1026 dev->vbi_width = 720; 1027 dev->vbi_height = 1; 1028 videobuf_queue_vmalloc_init(&fh->vb_vbiq, &au0828_vbi_qops, 1029 NULL, &dev->slock, 1030 V4L2_BUF_TYPE_VBI_CAPTURE, 1031 V4L2_FIELD_SEQ_TB, 1032 sizeof(struct au0828_buffer), fh, 1033 &dev->lock); 1034 return ret; 1035} 1036 1037static int au0828_v4l2_close(struct file *filp) 1038{ 1039 int ret; 1040 struct au0828_fh *fh = filp->private_data; 1041 struct au0828_dev *dev = fh->dev; 1042 1043 if (res_check(fh, AU0828_RESOURCE_VIDEO)) { 1044 /* Cancel timeout thread in case they didn't call streamoff */ 1045 dev->vid_timeout_running = 0; 1046 del_timer_sync(&dev->vid_timeout); 1047 1048 videobuf_stop(&fh->vb_vidq); 1049 res_free(fh, AU0828_RESOURCE_VIDEO); 1050 } 1051 1052 if (res_check(fh, AU0828_RESOURCE_VBI)) { 1053 /* Cancel timeout thread in case they didn't call streamoff */ 1054 dev->vbi_timeout_running = 0; 1055 del_timer_sync(&dev->vbi_timeout); 1056 1057 videobuf_stop(&fh->vb_vbiq); 1058 res_free(fh, AU0828_RESOURCE_VBI); 1059 } 1060 1061 if (dev->users == 1) { 1062 if (dev->dev_state & DEV_DISCONNECTED) { 1063 au0828_analog_unregister(dev); 1064 kfree(dev); 1065 return 0; 1066 } 1067 1068 au0828_analog_stream_disable(dev); 1069 1070 au0828_uninit_isoc(dev); 1071 1072 /* Save some power by putting tuner to sleep */ 1073 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); 1074 1075 /* When close the device, set the usb intf0 into alt0 to free 1076 USB bandwidth */ 1077 ret = usb_set_interface(dev->usbdev, 0, 0); 1078 if (ret < 0) 1079 printk(KERN_INFO "Au0828 can't set alternate to 0!\n"); 1080 } 1081 1082 videobuf_mmap_free(&fh->vb_vidq); 1083 videobuf_mmap_free(&fh->vb_vbiq); 1084 kfree(fh); 1085 dev->users--; 1086 wake_up_interruptible_nr(&dev->open, 1); 1087 return 0; 1088} 1089 1090static ssize_t au0828_v4l2_read(struct file *filp, char __user *buf, 1091 size_t count, loff_t *pos) 1092{ 1093 struct au0828_fh *fh = filp->private_data; 1094 struct au0828_dev *dev = fh->dev; 1095 int rc; 1096 1097 rc = check_dev(dev); 1098 if (rc < 0) 1099 return rc; 1100 1101 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 1102 if (res_locked(dev, AU0828_RESOURCE_VIDEO)) 1103 return -EBUSY; 1104 1105 return videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0, 1106 filp->f_flags & O_NONBLOCK); 1107 } 1108 1109 if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 1110 if (!res_get(fh, AU0828_RESOURCE_VBI)) 1111 return -EBUSY; 1112 1113 if (dev->vbi_timeout_running == 0) { 1114 /* Handle case where caller tries to read without 1115 calling streamon first */ 1116 dev->vbi_timeout_running = 1; 1117 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1118 } 1119 1120 return videobuf_read_stream(&fh->vb_vbiq, buf, count, pos, 0, 1121 filp->f_flags & O_NONBLOCK); 1122 } 1123 1124 return 0; 1125} 1126 1127static unsigned int au0828_v4l2_poll(struct file *filp, poll_table *wait) 1128{ 1129 struct au0828_fh *fh = filp->private_data; 1130 struct au0828_dev *dev = fh->dev; 1131 int rc; 1132 1133 rc = check_dev(dev); 1134 if (rc < 0) 1135 return rc; 1136 1137 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 1138 if (!res_get(fh, AU0828_RESOURCE_VIDEO)) 1139 return POLLERR; 1140 return videobuf_poll_stream(filp, &fh->vb_vidq, wait); 1141 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 1142 if (!res_get(fh, AU0828_RESOURCE_VBI)) 1143 return POLLERR; 1144 return videobuf_poll_stream(filp, &fh->vb_vbiq, wait); 1145 } else { 1146 return POLLERR; 1147 } 1148} 1149 1150static int au0828_v4l2_mmap(struct file *filp, struct vm_area_struct *vma) 1151{ 1152 struct au0828_fh *fh = filp->private_data; 1153 struct au0828_dev *dev = fh->dev; 1154 int rc; 1155 1156 rc = check_dev(dev); 1157 if (rc < 0) 1158 return rc; 1159 1160 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 1161 rc = videobuf_mmap_mapper(&fh->vb_vidq, vma); 1162 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) 1163 rc = videobuf_mmap_mapper(&fh->vb_vbiq, vma); 1164 1165 return rc; 1166} 1167 1168static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd, 1169 struct v4l2_format *format) 1170{ 1171 int ret; 1172 int width = format->fmt.pix.width; 1173 int height = format->fmt.pix.height; 1174 1175 if (format->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1176 return -EINVAL; 1177 1178 /* If they are demanding a format other than the one we support, 1179 bail out (tvtime asks for UYVY and then retries with YUYV) */ 1180 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY) 1181 return -EINVAL; 1182 1183 /* format->fmt.pix.width only support 720 and height 480 */ 1184 if (width != 720) 1185 width = 720; 1186 if (height != 480) 1187 height = 480; 1188 1189 format->fmt.pix.width = width; 1190 format->fmt.pix.height = height; 1191 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1192 format->fmt.pix.bytesperline = width * 2; 1193 format->fmt.pix.sizeimage = width * height * 2; 1194 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1195 format->fmt.pix.field = V4L2_FIELD_INTERLACED; 1196 1197 if (cmd == VIDIOC_TRY_FMT) 1198 return 0; 1199 1200 /* maybe set new image format, driver current only support 720*480 */ 1201 dev->width = width; 1202 dev->height = height; 1203 dev->frame_size = width * height * 2; 1204 dev->field_size = width * height; 1205 dev->bytesperline = width * 2; 1206 1207 if (dev->stream_state == STREAM_ON) { 1208 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n"); 1209 ret = au0828_stream_interrupt(dev); 1210 if (ret != 0) { 1211 dprintk(1, "error interrupting video stream!\n"); 1212 return ret; 1213 } 1214 } 1215 1216 /* set au0828 interface0 to AS5 here again */ 1217 ret = usb_set_interface(dev->usbdev, 0, 5); 1218 if (ret < 0) { 1219 printk(KERN_INFO "Au0828 can't set alt setting to 5!\n"); 1220 return -EBUSY; 1221 } 1222 1223 au0828_analog_stream_enable(dev); 1224 1225 return 0; 1226} 1227 1228 1229static int vidioc_queryctrl(struct file *file, void *priv, 1230 struct v4l2_queryctrl *qc) 1231{ 1232 struct au0828_fh *fh = priv; 1233 struct au0828_dev *dev = fh->dev; 1234 v4l2_device_call_all(&dev->v4l2_dev, 0, core, queryctrl, qc); 1235 if (qc->type) 1236 return 0; 1237 else 1238 return -EINVAL; 1239} 1240 1241static int vidioc_querycap(struct file *file, void *priv, 1242 struct v4l2_capability *cap) 1243{ 1244 struct au0828_fh *fh = priv; 1245 struct au0828_dev *dev = fh->dev; 1246 1247 strlcpy(cap->driver, "au0828", sizeof(cap->driver)); 1248 strlcpy(cap->card, dev->board.name, sizeof(cap->card)); 1249 strlcpy(cap->bus_info, dev->v4l2_dev.name, sizeof(cap->bus_info)); 1250 1251 /*set the device capabilities */ 1252 cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | 1253 V4L2_CAP_VBI_CAPTURE | 1254 V4L2_CAP_AUDIO | 1255 V4L2_CAP_READWRITE | 1256 V4L2_CAP_STREAMING | 1257 V4L2_CAP_TUNER; 1258 return 0; 1259} 1260 1261static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1262 struct v4l2_fmtdesc *f) 1263{ 1264 if (f->index) 1265 return -EINVAL; 1266 1267 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1268 strcpy(f->description, "Packed YUV2"); 1269 1270 f->flags = 0; 1271 f->pixelformat = V4L2_PIX_FMT_UYVY; 1272 1273 return 0; 1274} 1275 1276static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 1277 struct v4l2_format *f) 1278{ 1279 struct au0828_fh *fh = priv; 1280 struct au0828_dev *dev = fh->dev; 1281 1282 f->fmt.pix.width = dev->width; 1283 f->fmt.pix.height = dev->height; 1284 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1285 f->fmt.pix.bytesperline = dev->bytesperline; 1286 f->fmt.pix.sizeimage = dev->frame_size; 1287 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */ 1288 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 1289 return 0; 1290} 1291 1292static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 1293 struct v4l2_format *f) 1294{ 1295 struct au0828_fh *fh = priv; 1296 struct au0828_dev *dev = fh->dev; 1297 1298 return au0828_set_format(dev, VIDIOC_TRY_FMT, f); 1299} 1300 1301static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1302 struct v4l2_format *f) 1303{ 1304 struct au0828_fh *fh = priv; 1305 struct au0828_dev *dev = fh->dev; 1306 int rc; 1307 1308 rc = check_dev(dev); 1309 if (rc < 0) 1310 return rc; 1311 1312 if (videobuf_queue_is_busy(&fh->vb_vidq)) { 1313 printk(KERN_INFO "%s queue busy\n", __func__); 1314 rc = -EBUSY; 1315 goto out; 1316 } 1317 1318 rc = au0828_set_format(dev, VIDIOC_S_FMT, f); 1319out: 1320 return rc; 1321} 1322 1323static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id * norm) 1324{ 1325 struct au0828_fh *fh = priv; 1326 struct au0828_dev *dev = fh->dev; 1327 1328 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl) 1329 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 1); 1330 1331 /* FIXME: when we support something other than NTSC, we are going to 1332 have to make the au0828 bridge adjust the size of its capture 1333 buffer, which is currently hardcoded at 720x480 */ 1334 1335 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, *norm); 1336 dev->std_set_in_tuner_core = 1; 1337 1338 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl) 1339 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 0); 1340 1341 return 0; 1342} 1343 1344static int vidioc_enum_input(struct file *file, void *priv, 1345 struct v4l2_input *input) 1346{ 1347 struct au0828_fh *fh = priv; 1348 struct au0828_dev *dev = fh->dev; 1349 unsigned int tmp; 1350 1351 static const char *inames[] = { 1352 [AU0828_VMUX_UNDEFINED] = "Undefined", 1353 [AU0828_VMUX_COMPOSITE] = "Composite", 1354 [AU0828_VMUX_SVIDEO] = "S-Video", 1355 [AU0828_VMUX_CABLE] = "Cable TV", 1356 [AU0828_VMUX_TELEVISION] = "Television", 1357 [AU0828_VMUX_DVB] = "DVB", 1358 [AU0828_VMUX_DEBUG] = "tv debug" 1359 }; 1360 1361 tmp = input->index; 1362 1363 if (tmp >= AU0828_MAX_INPUT) 1364 return -EINVAL; 1365 if (AUVI_INPUT(tmp).type == 0) 1366 return -EINVAL; 1367 1368 input->index = tmp; 1369 strcpy(input->name, inames[AUVI_INPUT(tmp).type]); 1370 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) || 1371 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) 1372 input->type |= V4L2_INPUT_TYPE_TUNER; 1373 else 1374 input->type |= V4L2_INPUT_TYPE_CAMERA; 1375 1376 input->std = dev->vdev->tvnorms; 1377 1378 return 0; 1379} 1380 1381static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1382{ 1383 struct au0828_fh *fh = priv; 1384 struct au0828_dev *dev = fh->dev; 1385 *i = dev->ctrl_input; 1386 return 0; 1387} 1388 1389static int vidioc_s_input(struct file *file, void *priv, unsigned int index) 1390{ 1391 struct au0828_fh *fh = priv; 1392 struct au0828_dev *dev = fh->dev; 1393 int i; 1394 1395 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__, 1396 index); 1397 if (index >= AU0828_MAX_INPUT) 1398 return -EINVAL; 1399 if (AUVI_INPUT(index).type == 0) 1400 return -EINVAL; 1401 dev->ctrl_input = index; 1402 1403 switch (AUVI_INPUT(index).type) { 1404 case AU0828_VMUX_SVIDEO: 1405 dev->input_type = AU0828_VMUX_SVIDEO; 1406 break; 1407 case AU0828_VMUX_COMPOSITE: 1408 dev->input_type = AU0828_VMUX_COMPOSITE; 1409 break; 1410 case AU0828_VMUX_TELEVISION: 1411 dev->input_type = AU0828_VMUX_TELEVISION; 1412 break; 1413 default: 1414 dprintk(1, "VIDIOC_S_INPUT unknown input type set [%d]\n", 1415 AUVI_INPUT(index).type); 1416 break; 1417 } 1418 1419 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 1420 AUVI_INPUT(index).vmux, 0, 0); 1421 1422 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1423 int enable = 0; 1424 if (AUVI_INPUT(i).audio_setup == NULL) 1425 continue; 1426 1427 if (i == index) 1428 enable = 1; 1429 else 1430 enable = 0; 1431 if (enable) { 1432 (AUVI_INPUT(i).audio_setup)(dev, enable); 1433 } else { 1434 /* Make sure we leave it turned on if some 1435 other input is routed to this callback */ 1436 if ((AUVI_INPUT(i).audio_setup) != 1437 ((AUVI_INPUT(index).audio_setup))) { 1438 (AUVI_INPUT(i).audio_setup)(dev, enable); 1439 } 1440 } 1441 } 1442 1443 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 1444 AUVI_INPUT(index).amux, 0, 0); 1445 return 0; 1446} 1447 1448static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 1449{ 1450 struct au0828_fh *fh = priv; 1451 struct au0828_dev *dev = fh->dev; 1452 unsigned int index = a->index; 1453 1454 if (a->index > 1) 1455 return -EINVAL; 1456 1457 index = dev->ctrl_ainput; 1458 if (index == 0) 1459 strcpy(a->name, "Television"); 1460 else 1461 strcpy(a->name, "Line in"); 1462 1463 a->capability = V4L2_AUDCAP_STEREO; 1464 a->index = index; 1465 return 0; 1466} 1467 1468static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 1469{ 1470 struct au0828_fh *fh = priv; 1471 struct au0828_dev *dev = fh->dev; 1472 if (a->index != dev->ctrl_ainput) 1473 return -EINVAL; 1474 return 0; 1475} 1476 1477static int vidioc_g_ctrl(struct file *file, void *priv, 1478 struct v4l2_control *ctrl) 1479{ 1480 struct au0828_fh *fh = priv; 1481 struct au0828_dev *dev = fh->dev; 1482 1483 v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_ctrl, ctrl); 1484 return 0; 1485 1486} 1487 1488static int vidioc_s_ctrl(struct file *file, void *priv, 1489 struct v4l2_control *ctrl) 1490{ 1491 struct au0828_fh *fh = priv; 1492 struct au0828_dev *dev = fh->dev; 1493 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_ctrl, ctrl); 1494 return 0; 1495} 1496 1497static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1498{ 1499 struct au0828_fh *fh = priv; 1500 struct au0828_dev *dev = fh->dev; 1501 1502 if (t->index != 0) 1503 return -EINVAL; 1504 1505 strcpy(t->name, "Auvitek tuner"); 1506 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 1507 return 0; 1508} 1509 1510static int vidioc_s_tuner(struct file *file, void *priv, 1511 struct v4l2_tuner *t) 1512{ 1513 struct au0828_fh *fh = priv; 1514 struct au0828_dev *dev = fh->dev; 1515 1516 if (t->index != 0) 1517 return -EINVAL; 1518 1519 t->type = V4L2_TUNER_ANALOG_TV; 1520 1521 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl) 1522 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 1); 1523 1524 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 1525 1526 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl) 1527 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 0); 1528 1529 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal, 1530 t->afc); 1531 1532 return 0; 1533 1534} 1535 1536static int vidioc_g_frequency(struct file *file, void *priv, 1537 struct v4l2_frequency *freq) 1538{ 1539 struct au0828_fh *fh = priv; 1540 struct au0828_dev *dev = fh->dev; 1541 1542 freq->type = V4L2_TUNER_ANALOG_TV; 1543 freq->frequency = dev->ctrl_freq; 1544 return 0; 1545} 1546 1547static int vidioc_s_frequency(struct file *file, void *priv, 1548 const struct v4l2_frequency *freq) 1549{ 1550 struct au0828_fh *fh = priv; 1551 struct au0828_dev *dev = fh->dev; 1552 1553 if (freq->tuner != 0) 1554 return -EINVAL; 1555 if (freq->type != V4L2_TUNER_ANALOG_TV) 1556 return -EINVAL; 1557 1558 dev->ctrl_freq = freq->frequency; 1559 1560 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl) 1561 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 1); 1562 1563 if (dev->std_set_in_tuner_core == 0) { 1564 /* If we've never sent the standard in tuner core, do so now. We 1565 don't do this at device probe because we don't want to incur 1566 the cost of a firmware load */ 1567 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_std, 1568 dev->vdev->tvnorms); 1569 dev->std_set_in_tuner_core = 1; 1570 } 1571 1572 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq); 1573 1574 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl) 1575 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, 0); 1576 1577 au0828_analog_stream_reset(dev); 1578 1579 return 0; 1580} 1581 1582 1583/* RAW VBI ioctls */ 1584 1585static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 1586 struct v4l2_format *format) 1587{ 1588 struct au0828_fh *fh = priv; 1589 struct au0828_dev *dev = fh->dev; 1590 1591 format->fmt.vbi.samples_per_line = dev->vbi_width; 1592 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1593 format->fmt.vbi.offset = 0; 1594 format->fmt.vbi.flags = 0; 1595 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 1596 1597 format->fmt.vbi.count[0] = dev->vbi_height; 1598 format->fmt.vbi.count[1] = dev->vbi_height; 1599 format->fmt.vbi.start[0] = 21; 1600 format->fmt.vbi.start[1] = 284; 1601 1602 return 0; 1603} 1604 1605static int vidioc_g_chip_ident(struct file *file, void *priv, 1606 struct v4l2_dbg_chip_ident *chip) 1607{ 1608 struct au0828_fh *fh = priv; 1609 struct au0828_dev *dev = fh->dev; 1610 chip->ident = V4L2_IDENT_NONE; 1611 chip->revision = 0; 1612 1613 if (v4l2_chip_match_host(&chip->match)) { 1614 chip->ident = V4L2_IDENT_AU0828; 1615 return 0; 1616 } 1617 1618 v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_chip_ident, chip); 1619 if (chip->ident == V4L2_IDENT_NONE) 1620 return -EINVAL; 1621 1622 return 0; 1623} 1624 1625static int vidioc_cropcap(struct file *file, void *priv, 1626 struct v4l2_cropcap *cc) 1627{ 1628 struct au0828_fh *fh = priv; 1629 struct au0828_dev *dev = fh->dev; 1630 1631 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1632 return -EINVAL; 1633 1634 cc->bounds.left = 0; 1635 cc->bounds.top = 0; 1636 cc->bounds.width = dev->width; 1637 cc->bounds.height = dev->height; 1638 1639 cc->defrect = cc->bounds; 1640 1641 cc->pixelaspect.numerator = 54; 1642 cc->pixelaspect.denominator = 59; 1643 1644 return 0; 1645} 1646 1647static int vidioc_streamon(struct file *file, void *priv, 1648 enum v4l2_buf_type type) 1649{ 1650 struct au0828_fh *fh = priv; 1651 struct au0828_dev *dev = fh->dev; 1652 int rc = -EINVAL; 1653 1654 rc = check_dev(dev); 1655 if (rc < 0) 1656 return rc; 1657 1658 if (unlikely(type != fh->type)) 1659 return -EINVAL; 1660 1661 dprintk(1, "vidioc_streamon fh=%p t=%d fh->res=%d dev->res=%d\n", 1662 fh, type, fh->resources, dev->resources); 1663 1664 if (unlikely(!res_get(fh, get_ressource(fh)))) 1665 return -EBUSY; 1666 1667 if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 1668 au0828_analog_stream_enable(dev); 1669 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1); 1670 } 1671 1672 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 1673 rc = videobuf_streamon(&fh->vb_vidq); 1674 dev->vid_timeout_running = 1; 1675 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 1676 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 1677 rc = videobuf_streamon(&fh->vb_vbiq); 1678 dev->vbi_timeout_running = 1; 1679 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1680 } 1681 1682 return rc; 1683} 1684 1685static int vidioc_streamoff(struct file *file, void *priv, 1686 enum v4l2_buf_type type) 1687{ 1688 struct au0828_fh *fh = priv; 1689 struct au0828_dev *dev = fh->dev; 1690 int rc; 1691 int i; 1692 1693 rc = check_dev(dev); 1694 if (rc < 0) 1695 return rc; 1696 1697 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && 1698 fh->type != V4L2_BUF_TYPE_VBI_CAPTURE) 1699 return -EINVAL; 1700 if (type != fh->type) 1701 return -EINVAL; 1702 1703 dprintk(1, "vidioc_streamoff fh=%p t=%d fh->res=%d dev->res=%d\n", 1704 fh, type, fh->resources, dev->resources); 1705 1706 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 1707 dev->vid_timeout_running = 0; 1708 del_timer_sync(&dev->vid_timeout); 1709 1710 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 1711 rc = au0828_stream_interrupt(dev); 1712 if (rc != 0) 1713 return rc; 1714 1715 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1716 if (AUVI_INPUT(i).audio_setup == NULL) 1717 continue; 1718 (AUVI_INPUT(i).audio_setup)(dev, 0); 1719 } 1720 1721 if (res_check(fh, AU0828_RESOURCE_VIDEO)) { 1722 videobuf_streamoff(&fh->vb_vidq); 1723 res_free(fh, AU0828_RESOURCE_VIDEO); 1724 } 1725 } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 1726 dev->vbi_timeout_running = 0; 1727 del_timer_sync(&dev->vbi_timeout); 1728 1729 if (res_check(fh, AU0828_RESOURCE_VBI)) { 1730 videobuf_streamoff(&fh->vb_vbiq); 1731 res_free(fh, AU0828_RESOURCE_VBI); 1732 } 1733 } 1734 1735 return 0; 1736} 1737 1738#ifdef CONFIG_VIDEO_ADV_DEBUG 1739static int vidioc_g_register(struct file *file, void *priv, 1740 struct v4l2_dbg_register *reg) 1741{ 1742 struct au0828_fh *fh = priv; 1743 struct au0828_dev *dev = fh->dev; 1744 1745 switch (reg->match.type) { 1746 case V4L2_CHIP_MATCH_I2C_DRIVER: 1747 v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg); 1748 return 0; 1749 default: 1750 if (!v4l2_chip_match_host(®->match)) 1751 return -EINVAL; 1752 } 1753 1754 reg->val = au0828_read(dev, reg->reg); 1755 return 0; 1756} 1757 1758static int vidioc_s_register(struct file *file, void *priv, 1759 struct v4l2_dbg_register *reg) 1760{ 1761 struct au0828_fh *fh = priv; 1762 struct au0828_dev *dev = fh->dev; 1763 1764 switch (reg->match.type) { 1765 case V4L2_CHIP_MATCH_I2C_DRIVER: 1766 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg); 1767 return 0; 1768 default: 1769 if (!v4l2_chip_match_host(®->match)) 1770 return -EINVAL; 1771 } 1772 return au0828_writereg(dev, reg->reg, reg->val); 1773} 1774#endif 1775 1776static int vidioc_reqbufs(struct file *file, void *priv, 1777 struct v4l2_requestbuffers *rb) 1778{ 1779 struct au0828_fh *fh = priv; 1780 struct au0828_dev *dev = fh->dev; 1781 int rc; 1782 1783 rc = check_dev(dev); 1784 if (rc < 0) 1785 return rc; 1786 1787 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 1788 rc = videobuf_reqbufs(&fh->vb_vidq, rb); 1789 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) 1790 rc = videobuf_reqbufs(&fh->vb_vbiq, rb); 1791 1792 return rc; 1793} 1794 1795static int vidioc_querybuf(struct file *file, void *priv, 1796 struct v4l2_buffer *b) 1797{ 1798 struct au0828_fh *fh = priv; 1799 struct au0828_dev *dev = fh->dev; 1800 int rc; 1801 1802 rc = check_dev(dev); 1803 if (rc < 0) 1804 return rc; 1805 1806 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 1807 rc = videobuf_querybuf(&fh->vb_vidq, b); 1808 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) 1809 rc = videobuf_querybuf(&fh->vb_vbiq, b); 1810 1811 return rc; 1812} 1813 1814static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) 1815{ 1816 struct au0828_fh *fh = priv; 1817 struct au0828_dev *dev = fh->dev; 1818 int rc; 1819 1820 rc = check_dev(dev); 1821 if (rc < 0) 1822 return rc; 1823 1824 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 1825 rc = videobuf_qbuf(&fh->vb_vidq, b); 1826 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) 1827 rc = videobuf_qbuf(&fh->vb_vbiq, b); 1828 1829 return rc; 1830} 1831 1832static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) 1833{ 1834 struct au0828_fh *fh = priv; 1835 struct au0828_dev *dev = fh->dev; 1836 int rc; 1837 1838 rc = check_dev(dev); 1839 if (rc < 0) 1840 return rc; 1841 1842 /* Workaround for a bug in the au0828 hardware design that sometimes 1843 results in the colorspace being inverted */ 1844 if (dev->greenscreen_detected == 1) { 1845 dprintk(1, "Detected green frame. Resetting stream...\n"); 1846 au0828_analog_stream_reset(dev); 1847 dev->greenscreen_detected = 0; 1848 } 1849 1850 if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 1851 rc = videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags & O_NONBLOCK); 1852 else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) 1853 rc = videobuf_dqbuf(&fh->vb_vbiq, b, file->f_flags & O_NONBLOCK); 1854 1855 return rc; 1856} 1857 1858static struct v4l2_file_operations au0828_v4l_fops = { 1859 .owner = THIS_MODULE, 1860 .open = au0828_v4l2_open, 1861 .release = au0828_v4l2_close, 1862 .read = au0828_v4l2_read, 1863 .poll = au0828_v4l2_poll, 1864 .mmap = au0828_v4l2_mmap, 1865 .unlocked_ioctl = video_ioctl2, 1866}; 1867 1868static const struct v4l2_ioctl_ops video_ioctl_ops = { 1869 .vidioc_querycap = vidioc_querycap, 1870 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1871 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1872 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1873 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1874 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1875 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1876 .vidioc_g_audio = vidioc_g_audio, 1877 .vidioc_s_audio = vidioc_s_audio, 1878 .vidioc_cropcap = vidioc_cropcap, 1879 .vidioc_reqbufs = vidioc_reqbufs, 1880 .vidioc_querybuf = vidioc_querybuf, 1881 .vidioc_qbuf = vidioc_qbuf, 1882 .vidioc_dqbuf = vidioc_dqbuf, 1883 .vidioc_s_std = vidioc_s_std, 1884 .vidioc_enum_input = vidioc_enum_input, 1885 .vidioc_g_input = vidioc_g_input, 1886 .vidioc_s_input = vidioc_s_input, 1887 .vidioc_queryctrl = vidioc_queryctrl, 1888 .vidioc_g_ctrl = vidioc_g_ctrl, 1889 .vidioc_s_ctrl = vidioc_s_ctrl, 1890 .vidioc_streamon = vidioc_streamon, 1891 .vidioc_streamoff = vidioc_streamoff, 1892 .vidioc_g_tuner = vidioc_g_tuner, 1893 .vidioc_s_tuner = vidioc_s_tuner, 1894 .vidioc_g_frequency = vidioc_g_frequency, 1895 .vidioc_s_frequency = vidioc_s_frequency, 1896#ifdef CONFIG_VIDEO_ADV_DEBUG 1897 .vidioc_g_register = vidioc_g_register, 1898 .vidioc_s_register = vidioc_s_register, 1899#endif 1900 .vidioc_g_chip_ident = vidioc_g_chip_ident, 1901}; 1902 1903static const struct video_device au0828_video_template = { 1904 .fops = &au0828_v4l_fops, 1905 .release = video_device_release, 1906 .ioctl_ops = &video_ioctl_ops, 1907 .tvnorms = V4L2_STD_NTSC_M, 1908 .current_norm = V4L2_STD_NTSC_M, 1909}; 1910 1911/**************************************************************************/ 1912 1913int au0828_analog_register(struct au0828_dev *dev, 1914 struct usb_interface *interface) 1915{ 1916 int retval = -ENOMEM; 1917 struct usb_host_interface *iface_desc; 1918 struct usb_endpoint_descriptor *endpoint; 1919 int i, ret; 1920 1921 dprintk(1, "au0828_analog_register called!\n"); 1922 1923 /* set au0828 usb interface0 to as5 */ 1924 retval = usb_set_interface(dev->usbdev, 1925 interface->cur_altsetting->desc.bInterfaceNumber, 5); 1926 if (retval != 0) { 1927 printk(KERN_INFO "Failure setting usb interface0 to as5\n"); 1928 return retval; 1929 } 1930 1931 /* Figure out which endpoint has the isoc interface */ 1932 iface_desc = interface->cur_altsetting; 1933 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { 1934 endpoint = &iface_desc->endpoint[i].desc; 1935 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1936 == USB_DIR_IN) && 1937 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1938 == USB_ENDPOINT_XFER_ISOC)) { 1939 1940 /* we find our isoc in endpoint */ 1941 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize); 1942 dev->max_pkt_size = (tmp & 0x07ff) * 1943 (((tmp & 0x1800) >> 11) + 1); 1944 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress; 1945 } 1946 } 1947 if (!(dev->isoc_in_endpointaddr)) { 1948 printk(KERN_INFO "Could not locate isoc endpoint\n"); 1949 kfree(dev); 1950 return -ENODEV; 1951 } 1952 1953 init_waitqueue_head(&dev->open); 1954 spin_lock_init(&dev->slock); 1955 1956 /* init video dma queues */ 1957 INIT_LIST_HEAD(&dev->vidq.active); 1958 INIT_LIST_HEAD(&dev->vidq.queued); 1959 INIT_LIST_HEAD(&dev->vbiq.active); 1960 INIT_LIST_HEAD(&dev->vbiq.queued); 1961 1962 dev->vid_timeout.function = au0828_vid_buffer_timeout; 1963 dev->vid_timeout.data = (unsigned long) dev; 1964 init_timer(&dev->vid_timeout); 1965 1966 dev->vbi_timeout.function = au0828_vbi_buffer_timeout; 1967 dev->vbi_timeout.data = (unsigned long) dev; 1968 init_timer(&dev->vbi_timeout); 1969 1970 dev->width = NTSC_STD_W; 1971 dev->height = NTSC_STD_H; 1972 dev->field_size = dev->width * dev->height; 1973 dev->frame_size = dev->field_size << 1; 1974 dev->bytesperline = dev->width << 1; 1975 dev->ctrl_ainput = 0; 1976 1977 /* allocate and fill v4l2 video struct */ 1978 dev->vdev = video_device_alloc(); 1979 if (NULL == dev->vdev) { 1980 dprintk(1, "Can't allocate video_device.\n"); 1981 return -ENOMEM; 1982 } 1983 1984 /* allocate the VBI struct */ 1985 dev->vbi_dev = video_device_alloc(); 1986 if (NULL == dev->vbi_dev) { 1987 dprintk(1, "Can't allocate vbi_device.\n"); 1988 ret = -ENOMEM; 1989 goto err_vdev; 1990 } 1991 1992 /* Fill the video capture device struct */ 1993 *dev->vdev = au0828_video_template; 1994 dev->vdev->parent = &dev->usbdev->dev; 1995 dev->vdev->lock = &dev->lock; 1996 strcpy(dev->vdev->name, "au0828a video"); 1997 1998 /* Setup the VBI device */ 1999 *dev->vbi_dev = au0828_video_template; 2000 dev->vbi_dev->parent = &dev->usbdev->dev; 2001 dev->vbi_dev->lock = &dev->lock; 2002 strcpy(dev->vbi_dev->name, "au0828a vbi"); 2003 2004 /* Register the v4l2 device */ 2005 video_set_drvdata(dev->vdev, dev); 2006 retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER, -1); 2007 if (retval != 0) { 2008 dprintk(1, "unable to register video device (error = %d).\n", 2009 retval); 2010 ret = -ENODEV; 2011 goto err_vbi_dev; 2012 } 2013 2014 /* Register the vbi device */ 2015 video_set_drvdata(dev->vbi_dev, dev); 2016 retval = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, -1); 2017 if (retval != 0) { 2018 dprintk(1, "unable to register vbi device (error = %d).\n", 2019 retval); 2020 ret = -ENODEV; 2021 goto err_vbi_dev; 2022 } 2023 2024 dprintk(1, "%s completed!\n", __func__); 2025 2026 return 0; 2027 2028err_vbi_dev: 2029 video_device_release(dev->vbi_dev); 2030err_vdev: 2031 video_device_release(dev->vdev); 2032 return ret; 2033} 2034 2035