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 * The hardware scaler supported is unimplemented 26 * AC97 audio support is unimplemented (only i2s audio mode) 27 * 28 */ 29 30 #include "au0828.h" 31 32 #include <linux/module.h> 33 #include <linux/slab.h> 34 #include <linux/init.h> 35 #include <linux/device.h> 36 #include <media/v4l2-common.h> 37 #include <media/v4l2-ioctl.h> 38 #include <media/v4l2-event.h> 39 #include <media/tuner.h> 40 #include "au0828-reg.h" 41 42 static DEFINE_MUTEX(au0828_sysfs_lock); 43 44 /* ------------------------------------------------------------------ 45 Videobuf operations 46 ------------------------------------------------------------------*/ 47 48 static unsigned int isoc_debug; 49 module_param(isoc_debug, int, 0644); 50 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); 51 52 #define au0828_isocdbg(fmt, arg...) \ 53 do {\ 54 if (isoc_debug) { \ 55 pr_info("au0828 %s :"fmt, \ 56 __func__ , ##arg); \ 57 } \ 58 } while (0) 59 60 static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val) 61 { 62 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl) 63 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val); 64 } 65 66 static inline void print_err_status(struct au0828_dev *dev, 67 int packet, int status) 68 { 69 char *errmsg = "Unknown"; 70 71 switch (status) { 72 case -ENOENT: 73 errmsg = "unlinked synchronuously"; 74 break; 75 case -ECONNRESET: 76 errmsg = "unlinked asynchronuously"; 77 break; 78 case -ENOSR: 79 errmsg = "Buffer error (overrun)"; 80 break; 81 case -EPIPE: 82 errmsg = "Stalled (device not responding)"; 83 break; 84 case -EOVERFLOW: 85 errmsg = "Babble (bad cable?)"; 86 break; 87 case -EPROTO: 88 errmsg = "Bit-stuff error (bad cable?)"; 89 break; 90 case -EILSEQ: 91 errmsg = "CRC/Timeout (could be anything)"; 92 break; 93 case -ETIME: 94 errmsg = "Device does not respond"; 95 break; 96 } 97 if (packet < 0) { 98 au0828_isocdbg("URB status %d [%s].\n", status, errmsg); 99 } else { 100 au0828_isocdbg("URB packet %d, status %d [%s].\n", 101 packet, status, errmsg); 102 } 103 } 104 105 static int check_dev(struct au0828_dev *dev) 106 { 107 if (dev->dev_state & DEV_DISCONNECTED) { 108 pr_info("v4l2 ioctl: device not present\n"); 109 return -ENODEV; 110 } 111 112 if (dev->dev_state & DEV_MISCONFIGURED) { 113 pr_info("v4l2 ioctl: device is misconfigured; " 114 "close and open it again\n"); 115 return -EIO; 116 } 117 return 0; 118 } 119 120 /* 121 * IRQ callback, called by URB callback 122 */ 123 static void au0828_irq_callback(struct urb *urb) 124 { 125 struct au0828_dmaqueue *dma_q = urb->context; 126 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 127 unsigned long flags = 0; 128 int i; 129 130 switch (urb->status) { 131 case 0: /* success */ 132 case -ETIMEDOUT: /* NAK */ 133 break; 134 case -ECONNRESET: /* kill */ 135 case -ENOENT: 136 case -ESHUTDOWN: 137 au0828_isocdbg("au0828_irq_callback called: status kill\n"); 138 return; 139 default: /* unknown error */ 140 au0828_isocdbg("urb completition error %d.\n", urb->status); 141 break; 142 } 143 144 /* Copy data from URB */ 145 spin_lock_irqsave(&dev->slock, flags); 146 dev->isoc_ctl.isoc_copy(dev, urb); 147 spin_unlock_irqrestore(&dev->slock, flags); 148 149 /* Reset urb buffers */ 150 for (i = 0; i < urb->number_of_packets; i++) { 151 urb->iso_frame_desc[i].status = 0; 152 urb->iso_frame_desc[i].actual_length = 0; 153 } 154 urb->status = 0; 155 156 urb->status = usb_submit_urb(urb, GFP_ATOMIC); 157 if (urb->status) { 158 au0828_isocdbg("urb resubmit failed (error=%i)\n", 159 urb->status); 160 } 161 dev->stream_state = STREAM_ON; 162 } 163 164 /* 165 * Stop and Deallocate URBs 166 */ 167 static void au0828_uninit_isoc(struct au0828_dev *dev) 168 { 169 struct urb *urb; 170 int i; 171 172 au0828_isocdbg("au0828: called au0828_uninit_isoc\n"); 173 174 dev->isoc_ctl.nfields = -1; 175 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 176 urb = dev->isoc_ctl.urb[i]; 177 if (urb) { 178 if (!irqs_disabled()) 179 usb_kill_urb(urb); 180 else 181 usb_unlink_urb(urb); 182 183 if (dev->isoc_ctl.transfer_buffer[i]) { 184 usb_free_coherent(dev->usbdev, 185 urb->transfer_buffer_length, 186 dev->isoc_ctl.transfer_buffer[i], 187 urb->transfer_dma); 188 } 189 usb_free_urb(urb); 190 dev->isoc_ctl.urb[i] = NULL; 191 } 192 dev->isoc_ctl.transfer_buffer[i] = NULL; 193 } 194 195 kfree(dev->isoc_ctl.urb); 196 kfree(dev->isoc_ctl.transfer_buffer); 197 198 dev->isoc_ctl.urb = NULL; 199 dev->isoc_ctl.transfer_buffer = NULL; 200 dev->isoc_ctl.num_bufs = 0; 201 202 dev->stream_state = STREAM_OFF; 203 } 204 205 /* 206 * Allocate URBs and start IRQ 207 */ 208 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets, 209 int num_bufs, int max_pkt_size, 210 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb)) 211 { 212 struct au0828_dmaqueue *dma_q = &dev->vidq; 213 int i; 214 int sb_size, pipe; 215 struct urb *urb; 216 int j, k; 217 int rc; 218 219 au0828_isocdbg("au0828: called au0828_prepare_isoc\n"); 220 221 dev->isoc_ctl.isoc_copy = isoc_copy; 222 dev->isoc_ctl.num_bufs = num_bufs; 223 224 dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL); 225 if (!dev->isoc_ctl.urb) { 226 au0828_isocdbg("cannot alloc memory for usb buffers\n"); 227 return -ENOMEM; 228 } 229 230 dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs, 231 GFP_KERNEL); 232 if (!dev->isoc_ctl.transfer_buffer) { 233 au0828_isocdbg("cannot allocate memory for usb transfer\n"); 234 kfree(dev->isoc_ctl.urb); 235 return -ENOMEM; 236 } 237 238 dev->isoc_ctl.max_pkt_size = max_pkt_size; 239 dev->isoc_ctl.buf = NULL; 240 241 sb_size = max_packets * dev->isoc_ctl.max_pkt_size; 242 243 /* allocate urbs and transfer buffers */ 244 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 245 urb = usb_alloc_urb(max_packets, GFP_KERNEL); 246 if (!urb) { 247 au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i); 248 au0828_uninit_isoc(dev); 249 return -ENOMEM; 250 } 251 dev->isoc_ctl.urb[i] = urb; 252 253 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev, 254 sb_size, GFP_KERNEL, &urb->transfer_dma); 255 if (!dev->isoc_ctl.transfer_buffer[i]) { 256 printk("unable to allocate %i bytes for transfer" 257 " buffer %i%s\n", 258 sb_size, i, 259 in_interrupt() ? " while in int" : ""); 260 au0828_uninit_isoc(dev); 261 return -ENOMEM; 262 } 263 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size); 264 265 pipe = usb_rcvisocpipe(dev->usbdev, 266 dev->isoc_in_endpointaddr), 267 268 usb_fill_int_urb(urb, dev->usbdev, pipe, 269 dev->isoc_ctl.transfer_buffer[i], sb_size, 270 au0828_irq_callback, dma_q, 1); 271 272 urb->number_of_packets = max_packets; 273 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; 274 275 k = 0; 276 for (j = 0; j < max_packets; j++) { 277 urb->iso_frame_desc[j].offset = k; 278 urb->iso_frame_desc[j].length = 279 dev->isoc_ctl.max_pkt_size; 280 k += dev->isoc_ctl.max_pkt_size; 281 } 282 } 283 284 /* submit urbs and enables IRQ */ 285 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 286 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 287 if (rc) { 288 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 289 i, rc); 290 au0828_uninit_isoc(dev); 291 return rc; 292 } 293 } 294 295 return 0; 296 } 297 298 /* 299 * Announces that a buffer were filled and request the next 300 */ 301 static inline void buffer_filled(struct au0828_dev *dev, 302 struct au0828_dmaqueue *dma_q, 303 struct au0828_buffer *buf) 304 { 305 struct vb2_v4l2_buffer *vb = &buf->vb; 306 struct vb2_queue *q = vb->vb2_buf.vb2_queue; 307 308 /* Advice that buffer was filled */ 309 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field); 310 311 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 312 vb->sequence = dev->frame_count++; 313 else 314 vb->sequence = dev->vbi_frame_count++; 315 316 vb->field = V4L2_FIELD_INTERLACED; 317 vb->vb2_buf.timestamp = ktime_get_ns(); 318 vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE); 319 } 320 321 /* 322 * Identify the buffer header type and properly handles 323 */ 324 static void au0828_copy_video(struct au0828_dev *dev, 325 struct au0828_dmaqueue *dma_q, 326 struct au0828_buffer *buf, 327 unsigned char *p, 328 unsigned char *outp, unsigned long len) 329 { 330 void *fieldstart, *startwrite, *startread; 331 int linesdone, currlinedone, offset, lencopy, remain; 332 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */ 333 334 if (len == 0) 335 return; 336 337 if (dma_q->pos + len > buf->length) 338 len = buf->length - dma_q->pos; 339 340 startread = p; 341 remain = len; 342 343 /* Interlaces frame */ 344 if (buf->top_field) 345 fieldstart = outp; 346 else 347 fieldstart = outp + bytesperline; 348 349 linesdone = dma_q->pos / bytesperline; 350 currlinedone = dma_q->pos % bytesperline; 351 offset = linesdone * bytesperline * 2 + currlinedone; 352 startwrite = fieldstart + offset; 353 lencopy = bytesperline - currlinedone; 354 lencopy = lencopy > remain ? remain : lencopy; 355 356 if ((char *)startwrite + lencopy > (char *)outp + buf->length) { 357 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n", 358 ((char *)startwrite + lencopy) - 359 ((char *)outp + buf->length)); 360 remain = (char *)outp + buf->length - (char *)startwrite; 361 lencopy = remain; 362 } 363 if (lencopy <= 0) 364 return; 365 memcpy(startwrite, startread, lencopy); 366 367 remain -= lencopy; 368 369 while (remain > 0) { 370 startwrite += lencopy + bytesperline; 371 startread += lencopy; 372 if (bytesperline > remain) 373 lencopy = remain; 374 else 375 lencopy = bytesperline; 376 377 if ((char *)startwrite + lencopy > (char *)outp + 378 buf->length) { 379 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n", 380 ((char *)startwrite + lencopy) - 381 ((char *)outp + buf->length)); 382 lencopy = remain = (char *)outp + buf->length - 383 (char *)startwrite; 384 } 385 if (lencopy <= 0) 386 break; 387 388 memcpy(startwrite, startread, lencopy); 389 390 remain -= lencopy; 391 } 392 393 if (offset > 1440) { 394 /* We have enough data to check for greenscreen */ 395 if (outp[0] < 0x60 && outp[1440] < 0x60) 396 dev->greenscreen_detected = 1; 397 } 398 399 dma_q->pos += len; 400 } 401 402 /* 403 * video-buf generic routine to get the next available buffer 404 */ 405 static inline void get_next_buf(struct au0828_dmaqueue *dma_q, 406 struct au0828_buffer **buf) 407 { 408 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 409 410 if (list_empty(&dma_q->active)) { 411 au0828_isocdbg("No active queue to serve\n"); 412 dev->isoc_ctl.buf = NULL; 413 *buf = NULL; 414 return; 415 } 416 417 /* Get the next buffer */ 418 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 419 /* Cleans up buffer - Useful for testing for frame/URB loss */ 420 list_del(&(*buf)->list); 421 dma_q->pos = 0; 422 (*buf)->vb_buf = (*buf)->mem; 423 dev->isoc_ctl.buf = *buf; 424 425 return; 426 } 427 428 static void au0828_copy_vbi(struct au0828_dev *dev, 429 struct au0828_dmaqueue *dma_q, 430 struct au0828_buffer *buf, 431 unsigned char *p, 432 unsigned char *outp, unsigned long len) 433 { 434 unsigned char *startwrite, *startread; 435 int bytesperline; 436 int i, j = 0; 437 438 if (dev == NULL) { 439 au0828_isocdbg("dev is null\n"); 440 return; 441 } 442 443 if (dma_q == NULL) { 444 au0828_isocdbg("dma_q is null\n"); 445 return; 446 } 447 if (buf == NULL) 448 return; 449 if (p == NULL) { 450 au0828_isocdbg("p is null\n"); 451 return; 452 } 453 if (outp == NULL) { 454 au0828_isocdbg("outp is null\n"); 455 return; 456 } 457 458 bytesperline = dev->vbi_width; 459 460 if (dma_q->pos + len > buf->length) 461 len = buf->length - dma_q->pos; 462 463 startread = p; 464 startwrite = outp + (dma_q->pos / 2); 465 466 /* Make sure the bottom field populates the second half of the frame */ 467 if (buf->top_field == 0) 468 startwrite += bytesperline * dev->vbi_height; 469 470 for (i = 0; i < len; i += 2) 471 startwrite[j++] = startread[i+1]; 472 473 dma_q->pos += len; 474 } 475 476 477 /* 478 * video-buf generic routine to get the next available VBI buffer 479 */ 480 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q, 481 struct au0828_buffer **buf) 482 { 483 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq); 484 485 if (list_empty(&dma_q->active)) { 486 au0828_isocdbg("No active queue to serve\n"); 487 dev->isoc_ctl.vbi_buf = NULL; 488 *buf = NULL; 489 return; 490 } 491 492 /* Get the next buffer */ 493 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 494 /* Cleans up buffer - Useful for testing for frame/URB loss */ 495 list_del(&(*buf)->list); 496 dma_q->pos = 0; 497 (*buf)->vb_buf = (*buf)->mem; 498 dev->isoc_ctl.vbi_buf = *buf; 499 return; 500 } 501 502 /* 503 * Controls the isoc copy of each urb packet 504 */ 505 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb) 506 { 507 struct au0828_buffer *buf; 508 struct au0828_buffer *vbi_buf; 509 struct au0828_dmaqueue *dma_q = urb->context; 510 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq; 511 unsigned char *outp = NULL; 512 unsigned char *vbioutp = NULL; 513 int i, len = 0, rc = 1; 514 unsigned char *p; 515 unsigned char fbyte; 516 unsigned int vbi_field_size; 517 unsigned int remain, lencopy; 518 519 if (!dev) 520 return 0; 521 522 if ((dev->dev_state & DEV_DISCONNECTED) || 523 (dev->dev_state & DEV_MISCONFIGURED)) 524 return 0; 525 526 if (urb->status < 0) { 527 print_err_status(dev, -1, urb->status); 528 if (urb->status == -ENOENT) 529 return 0; 530 } 531 532 buf = dev->isoc_ctl.buf; 533 if (buf != NULL) 534 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 535 536 vbi_buf = dev->isoc_ctl.vbi_buf; 537 if (vbi_buf != NULL) 538 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0); 539 540 for (i = 0; i < urb->number_of_packets; i++) { 541 int status = urb->iso_frame_desc[i].status; 542 543 if (status < 0) { 544 print_err_status(dev, i, status); 545 if (urb->iso_frame_desc[i].status != -EPROTO) 546 continue; 547 } 548 549 if (urb->iso_frame_desc[i].actual_length <= 0) 550 continue; 551 552 if (urb->iso_frame_desc[i].actual_length > 553 dev->max_pkt_size) { 554 au0828_isocdbg("packet bigger than packet size"); 555 continue; 556 } 557 558 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset; 559 fbyte = p[0]; 560 len = urb->iso_frame_desc[i].actual_length - 4; 561 p += 4; 562 563 if (fbyte & 0x80) { 564 len -= 4; 565 p += 4; 566 au0828_isocdbg("Video frame %s\n", 567 (fbyte & 0x40) ? "odd" : "even"); 568 if (fbyte & 0x40) { 569 /* VBI */ 570 if (vbi_buf != NULL) 571 buffer_filled(dev, vbi_dma_q, vbi_buf); 572 vbi_get_next_buf(vbi_dma_q, &vbi_buf); 573 if (vbi_buf == NULL) 574 vbioutp = NULL; 575 else 576 vbioutp = vb2_plane_vaddr( 577 &vbi_buf->vb.vb2_buf, 0); 578 579 /* Video */ 580 if (buf != NULL) 581 buffer_filled(dev, dma_q, buf); 582 get_next_buf(dma_q, &buf); 583 if (buf == NULL) 584 outp = NULL; 585 else 586 outp = vb2_plane_vaddr( 587 &buf->vb.vb2_buf, 0); 588 589 /* As long as isoc traffic is arriving, keep 590 resetting the timer */ 591 if (dev->vid_timeout_running) 592 mod_timer(&dev->vid_timeout, 593 jiffies + (HZ / 10)); 594 if (dev->vbi_timeout_running) 595 mod_timer(&dev->vbi_timeout, 596 jiffies + (HZ / 10)); 597 } 598 599 if (buf != NULL) { 600 if (fbyte & 0x40) 601 buf->top_field = 1; 602 else 603 buf->top_field = 0; 604 } 605 606 if (vbi_buf != NULL) { 607 if (fbyte & 0x40) 608 vbi_buf->top_field = 1; 609 else 610 vbi_buf->top_field = 0; 611 } 612 613 dev->vbi_read = 0; 614 vbi_dma_q->pos = 0; 615 dma_q->pos = 0; 616 } 617 618 vbi_field_size = dev->vbi_width * dev->vbi_height * 2; 619 if (dev->vbi_read < vbi_field_size) { 620 remain = vbi_field_size - dev->vbi_read; 621 if (len < remain) 622 lencopy = len; 623 else 624 lencopy = remain; 625 626 if (vbi_buf != NULL) 627 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p, 628 vbioutp, len); 629 630 len -= lencopy; 631 p += lencopy; 632 dev->vbi_read += lencopy; 633 } 634 635 if (dev->vbi_read >= vbi_field_size && buf != NULL) 636 au0828_copy_video(dev, dma_q, buf, p, outp, len); 637 } 638 return rc; 639 } 640 641 static int au0828_enable_analog_tuner(struct au0828_dev *dev) 642 { 643 #ifdef CONFIG_MEDIA_CONTROLLER 644 struct media_device *mdev = dev->media_dev; 645 struct media_entity *source; 646 struct media_link *link, *found_link = NULL; 647 int ret, active_links = 0; 648 649 if (!mdev || !dev->decoder) 650 return 0; 651 652 /* 653 * This will find the tuner that is connected into the decoder. 654 * Technically, this is not 100% correct, as the device may be 655 * using an analog input instead of the tuner. However, as we can't 656 * do DVB streaming while the DMA engine is being used for V4L2, 657 * this should be enough for the actual needs. 658 */ 659 list_for_each_entry(link, &dev->decoder->links, list) { 660 if (link->sink->entity == dev->decoder) { 661 found_link = link; 662 if (link->flags & MEDIA_LNK_FL_ENABLED) 663 active_links++; 664 break; 665 } 666 } 667 668 if (active_links == 1 || !found_link) 669 return 0; 670 671 source = found_link->source->entity; 672 list_for_each_entry(link, &source->links, list) { 673 struct media_entity *sink; 674 int flags = 0; 675 676 sink = link->sink->entity; 677 678 if (sink == dev->decoder) 679 flags = MEDIA_LNK_FL_ENABLED; 680 681 ret = media_entity_setup_link(link, flags); 682 if (ret) { 683 pr_err( 684 "Couldn't change link %s->%s to %s. Error %d\n", 685 source->name, sink->name, 686 flags ? "enabled" : "disabled", 687 ret); 688 return ret; 689 } else 690 au0828_isocdbg( 691 "link %s->%s was %s\n", 692 source->name, sink->name, 693 flags ? "ENABLED" : "disabled"); 694 } 695 #endif 696 return 0; 697 } 698 699 static int queue_setup(struct vb2_queue *vq, 700 unsigned int *nbuffers, unsigned int *nplanes, 701 unsigned int sizes[], void *alloc_ctxs[]) 702 { 703 struct au0828_dev *dev = vb2_get_drv_priv(vq); 704 unsigned long size = dev->height * dev->bytesperline; 705 706 if (*nplanes) 707 return sizes[0] < size ? -EINVAL : 0; 708 *nplanes = 1; 709 sizes[0] = size; 710 711 au0828_enable_analog_tuner(dev); 712 713 return 0; 714 } 715 716 static int 717 buffer_prepare(struct vb2_buffer *vb) 718 { 719 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 720 struct au0828_buffer *buf = container_of(vbuf, 721 struct au0828_buffer, vb); 722 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 723 724 buf->length = dev->height * dev->bytesperline; 725 726 if (vb2_plane_size(vb, 0) < buf->length) { 727 pr_err("%s data will not fit into plane (%lu < %lu)\n", 728 __func__, vb2_plane_size(vb, 0), buf->length); 729 return -EINVAL; 730 } 731 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length); 732 return 0; 733 } 734 735 static void 736 buffer_queue(struct vb2_buffer *vb) 737 { 738 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 739 struct au0828_buffer *buf = container_of(vbuf, 740 struct au0828_buffer, 741 vb); 742 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 743 struct au0828_dmaqueue *vidq = &dev->vidq; 744 unsigned long flags = 0; 745 746 buf->mem = vb2_plane_vaddr(vb, 0); 747 buf->length = vb2_plane_size(vb, 0); 748 749 spin_lock_irqsave(&dev->slock, flags); 750 list_add_tail(&buf->list, &vidq->active); 751 spin_unlock_irqrestore(&dev->slock, flags); 752 } 753 754 static int au0828_i2s_init(struct au0828_dev *dev) 755 { 756 /* Enable i2s mode */ 757 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01); 758 return 0; 759 } 760 761 /* 762 * Auvitek au0828 analog stream enable 763 */ 764 static int au0828_analog_stream_enable(struct au0828_dev *d) 765 { 766 struct usb_interface *iface; 767 int ret, h, w; 768 769 dprintk(1, "au0828_analog_stream_enable called\n"); 770 771 iface = usb_ifnum_to_if(d->usbdev, 0); 772 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) { 773 dprintk(1, "Changing intf#0 to alt 5\n"); 774 /* set au0828 interface0 to AS5 here again */ 775 ret = usb_set_interface(d->usbdev, 0, 5); 776 if (ret < 0) { 777 pr_info("Au0828 can't set alt setting to 5!\n"); 778 return -EBUSY; 779 } 780 } 781 782 h = d->height / 2 + 2; 783 w = d->width * 2; 784 785 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00); 786 au0828_writereg(d, 0x106, 0x00); 787 /* set x position */ 788 au0828_writereg(d, 0x110, 0x00); 789 au0828_writereg(d, 0x111, 0x00); 790 au0828_writereg(d, 0x114, w & 0xff); 791 au0828_writereg(d, 0x115, w >> 8); 792 /* set y position */ 793 au0828_writereg(d, 0x112, 0x00); 794 au0828_writereg(d, 0x113, 0x00); 795 au0828_writereg(d, 0x116, h & 0xff); 796 au0828_writereg(d, 0x117, h >> 8); 797 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3); 798 799 return 0; 800 } 801 802 static int au0828_analog_stream_disable(struct au0828_dev *d) 803 { 804 dprintk(1, "au0828_analog_stream_disable called\n"); 805 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0); 806 return 0; 807 } 808 809 static void au0828_analog_stream_reset(struct au0828_dev *dev) 810 { 811 dprintk(1, "au0828_analog_stream_reset called\n"); 812 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0); 813 mdelay(30); 814 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3); 815 } 816 817 /* 818 * Some operations needs to stop current streaming 819 */ 820 static int au0828_stream_interrupt(struct au0828_dev *dev) 821 { 822 int ret = 0; 823 824 dev->stream_state = STREAM_INTERRUPT; 825 if (dev->dev_state == DEV_DISCONNECTED) 826 return -ENODEV; 827 else if (ret) { 828 dev->dev_state = DEV_MISCONFIGURED; 829 dprintk(1, "%s device is misconfigured!\n", __func__); 830 return ret; 831 } 832 return 0; 833 } 834 835 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count) 836 { 837 struct au0828_dev *dev = vb2_get_drv_priv(vq); 838 int rc = 0; 839 840 dprintk(1, "au0828_start_analog_streaming called %d\n", 841 dev->streaming_users); 842 843 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 844 dev->frame_count = 0; 845 else 846 dev->vbi_frame_count = 0; 847 848 if (dev->streaming_users == 0) { 849 /* If we were doing ac97 instead of i2s, it would go here...*/ 850 au0828_i2s_init(dev); 851 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB, 852 AU0828_MAX_ISO_BUFS, dev->max_pkt_size, 853 au0828_isoc_copy); 854 if (rc < 0) { 855 pr_info("au0828_init_isoc failed\n"); 856 return rc; 857 } 858 859 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 860 v4l2_device_call_all(&dev->v4l2_dev, 0, video, 861 s_stream, 1); 862 dev->vid_timeout_running = 1; 863 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 864 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 865 dev->vbi_timeout_running = 1; 866 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 867 } 868 } 869 dev->streaming_users++; 870 return rc; 871 } 872 873 static void au0828_stop_streaming(struct vb2_queue *vq) 874 { 875 struct au0828_dev *dev = vb2_get_drv_priv(vq); 876 struct au0828_dmaqueue *vidq = &dev->vidq; 877 unsigned long flags = 0; 878 879 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users); 880 881 if (dev->streaming_users-- == 1) 882 au0828_uninit_isoc(dev); 883 884 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 885 dev->vid_timeout_running = 0; 886 del_timer_sync(&dev->vid_timeout); 887 888 spin_lock_irqsave(&dev->slock, flags); 889 if (dev->isoc_ctl.buf != NULL) { 890 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf, 891 VB2_BUF_STATE_ERROR); 892 dev->isoc_ctl.buf = NULL; 893 } 894 while (!list_empty(&vidq->active)) { 895 struct au0828_buffer *buf; 896 897 buf = list_entry(vidq->active.next, struct au0828_buffer, list); 898 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 899 list_del(&buf->list); 900 } 901 spin_unlock_irqrestore(&dev->slock, flags); 902 } 903 904 void au0828_stop_vbi_streaming(struct vb2_queue *vq) 905 { 906 struct au0828_dev *dev = vb2_get_drv_priv(vq); 907 struct au0828_dmaqueue *vbiq = &dev->vbiq; 908 unsigned long flags = 0; 909 910 dprintk(1, "au0828_stop_vbi_streaming called %d\n", 911 dev->streaming_users); 912 913 if (dev->streaming_users-- == 1) 914 au0828_uninit_isoc(dev); 915 916 spin_lock_irqsave(&dev->slock, flags); 917 if (dev->isoc_ctl.vbi_buf != NULL) { 918 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf, 919 VB2_BUF_STATE_ERROR); 920 dev->isoc_ctl.vbi_buf = NULL; 921 } 922 while (!list_empty(&vbiq->active)) { 923 struct au0828_buffer *buf; 924 925 buf = list_entry(vbiq->active.next, struct au0828_buffer, list); 926 list_del(&buf->list); 927 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 928 } 929 spin_unlock_irqrestore(&dev->slock, flags); 930 931 dev->vbi_timeout_running = 0; 932 del_timer_sync(&dev->vbi_timeout); 933 } 934 935 static struct vb2_ops au0828_video_qops = { 936 .queue_setup = queue_setup, 937 .buf_prepare = buffer_prepare, 938 .buf_queue = buffer_queue, 939 .start_streaming = au0828_start_analog_streaming, 940 .stop_streaming = au0828_stop_streaming, 941 .wait_prepare = vb2_ops_wait_prepare, 942 .wait_finish = vb2_ops_wait_finish, 943 }; 944 945 /* ------------------------------------------------------------------ 946 V4L2 interface 947 ------------------------------------------------------------------*/ 948 /* 949 * au0828_analog_unregister 950 * unregister v4l2 devices 951 */ 952 void au0828_analog_unregister(struct au0828_dev *dev) 953 { 954 dprintk(1, "au0828_analog_unregister called\n"); 955 mutex_lock(&au0828_sysfs_lock); 956 video_unregister_device(&dev->vdev); 957 video_unregister_device(&dev->vbi_dev); 958 mutex_unlock(&au0828_sysfs_lock); 959 } 960 961 /* This function ensures that video frames continue to be delivered even if 962 the ITU-656 input isn't receiving any data (thereby preventing applications 963 such as tvtime from hanging) */ 964 static void au0828_vid_buffer_timeout(unsigned long data) 965 { 966 struct au0828_dev *dev = (struct au0828_dev *) data; 967 struct au0828_dmaqueue *dma_q = &dev->vidq; 968 struct au0828_buffer *buf; 969 unsigned char *vid_data; 970 unsigned long flags = 0; 971 972 spin_lock_irqsave(&dev->slock, flags); 973 974 buf = dev->isoc_ctl.buf; 975 if (buf != NULL) { 976 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 977 memset(vid_data, 0x00, buf->length); /* Blank green frame */ 978 buffer_filled(dev, dma_q, buf); 979 } 980 get_next_buf(dma_q, &buf); 981 982 if (dev->vid_timeout_running == 1) 983 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 984 985 spin_unlock_irqrestore(&dev->slock, flags); 986 } 987 988 static void au0828_vbi_buffer_timeout(unsigned long data) 989 { 990 struct au0828_dev *dev = (struct au0828_dev *) data; 991 struct au0828_dmaqueue *dma_q = &dev->vbiq; 992 struct au0828_buffer *buf; 993 unsigned char *vbi_data; 994 unsigned long flags = 0; 995 996 spin_lock_irqsave(&dev->slock, flags); 997 998 buf = dev->isoc_ctl.vbi_buf; 999 if (buf != NULL) { 1000 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 1001 memset(vbi_data, 0x00, buf->length); 1002 buffer_filled(dev, dma_q, buf); 1003 } 1004 vbi_get_next_buf(dma_q, &buf); 1005 1006 if (dev->vbi_timeout_running == 1) 1007 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1008 spin_unlock_irqrestore(&dev->slock, flags); 1009 } 1010 1011 static int au0828_v4l2_open(struct file *filp) 1012 { 1013 struct au0828_dev *dev = video_drvdata(filp); 1014 int ret; 1015 1016 dprintk(1, 1017 "%s called std_set %d dev_state %d stream users %d users %d\n", 1018 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1019 dev->streaming_users, dev->users); 1020 1021 if (mutex_lock_interruptible(&dev->lock)) 1022 return -ERESTARTSYS; 1023 1024 ret = v4l2_fh_open(filp); 1025 if (ret) { 1026 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n", 1027 __func__, ret); 1028 mutex_unlock(&dev->lock); 1029 return ret; 1030 } 1031 1032 if (dev->users == 0) { 1033 au0828_analog_stream_enable(dev); 1034 au0828_analog_stream_reset(dev); 1035 dev->stream_state = STREAM_OFF; 1036 dev->dev_state |= DEV_INITIALIZED; 1037 } 1038 dev->users++; 1039 mutex_unlock(&dev->lock); 1040 return ret; 1041 } 1042 1043 static int au0828_v4l2_close(struct file *filp) 1044 { 1045 int ret; 1046 struct au0828_dev *dev = video_drvdata(filp); 1047 struct video_device *vdev = video_devdata(filp); 1048 1049 dprintk(1, 1050 "%s called std_set %d dev_state %d stream users %d users %d\n", 1051 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1052 dev->streaming_users, dev->users); 1053 1054 mutex_lock(&dev->lock); 1055 if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) { 1056 /* Cancel timeout thread in case they didn't call streamoff */ 1057 dev->vid_timeout_running = 0; 1058 del_timer_sync(&dev->vid_timeout); 1059 } else if (vdev->vfl_type == VFL_TYPE_VBI && 1060 dev->vbi_timeout_running) { 1061 /* Cancel timeout thread in case they didn't call streamoff */ 1062 dev->vbi_timeout_running = 0; 1063 del_timer_sync(&dev->vbi_timeout); 1064 } 1065 1066 if (dev->dev_state == DEV_DISCONNECTED) 1067 goto end; 1068 1069 if (dev->users == 1) { 1070 /* Save some power by putting tuner to sleep */ 1071 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); 1072 dev->std_set_in_tuner_core = 0; 1073 1074 /* When close the device, set the usb intf0 into alt0 to free 1075 USB bandwidth */ 1076 ret = usb_set_interface(dev->usbdev, 0, 0); 1077 if (ret < 0) 1078 pr_info("Au0828 can't set alternate to 0!\n"); 1079 } 1080 end: 1081 _vb2_fop_release(filp, NULL); 1082 dev->users--; 1083 mutex_unlock(&dev->lock); 1084 return 0; 1085 } 1086 1087 /* Must be called with dev->lock held */ 1088 static void au0828_init_tuner(struct au0828_dev *dev) 1089 { 1090 struct v4l2_frequency f = { 1091 .frequency = dev->ctrl_freq, 1092 .type = V4L2_TUNER_ANALOG_TV, 1093 }; 1094 1095 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1096 dev->std_set_in_tuner_core, dev->dev_state); 1097 1098 if (dev->std_set_in_tuner_core) 1099 return; 1100 dev->std_set_in_tuner_core = 1; 1101 i2c_gate_ctrl(dev, 1); 1102 /* If we've never sent the standard in tuner core, do so now. 1103 We don't do this at device probe because we don't want to 1104 incur the cost of a firmware load */ 1105 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std); 1106 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 1107 i2c_gate_ctrl(dev, 0); 1108 } 1109 1110 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd, 1111 struct v4l2_format *format) 1112 { 1113 int ret; 1114 int width = format->fmt.pix.width; 1115 int height = format->fmt.pix.height; 1116 1117 /* If they are demanding a format other than the one we support, 1118 bail out (tvtime asks for UYVY and then retries with YUYV) */ 1119 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY) 1120 return -EINVAL; 1121 1122 /* format->fmt.pix.width only support 720 and height 480 */ 1123 if (width != 720) 1124 width = 720; 1125 if (height != 480) 1126 height = 480; 1127 1128 format->fmt.pix.width = width; 1129 format->fmt.pix.height = height; 1130 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1131 format->fmt.pix.bytesperline = width * 2; 1132 format->fmt.pix.sizeimage = width * height * 2; 1133 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1134 format->fmt.pix.field = V4L2_FIELD_INTERLACED; 1135 format->fmt.pix.priv = 0; 1136 1137 if (cmd == VIDIOC_TRY_FMT) 1138 return 0; 1139 1140 /* maybe set new image format, driver current only support 720*480 */ 1141 dev->width = width; 1142 dev->height = height; 1143 dev->frame_size = width * height * 2; 1144 dev->field_size = width * height; 1145 dev->bytesperline = width * 2; 1146 1147 if (dev->stream_state == STREAM_ON) { 1148 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n"); 1149 ret = au0828_stream_interrupt(dev); 1150 if (ret != 0) { 1151 dprintk(1, "error interrupting video stream!\n"); 1152 return ret; 1153 } 1154 } 1155 1156 au0828_analog_stream_enable(dev); 1157 1158 return 0; 1159 } 1160 1161 static int vidioc_querycap(struct file *file, void *priv, 1162 struct v4l2_capability *cap) 1163 { 1164 struct video_device *vdev = video_devdata(file); 1165 struct au0828_dev *dev = video_drvdata(file); 1166 1167 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1168 dev->std_set_in_tuner_core, dev->dev_state); 1169 1170 strlcpy(cap->driver, "au0828", sizeof(cap->driver)); 1171 strlcpy(cap->card, dev->board.name, sizeof(cap->card)); 1172 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info)); 1173 1174 /* set the device capabilities */ 1175 cap->device_caps = V4L2_CAP_AUDIO | 1176 V4L2_CAP_READWRITE | 1177 V4L2_CAP_STREAMING | 1178 V4L2_CAP_TUNER; 1179 if (vdev->vfl_type == VFL_TYPE_GRABBER) 1180 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE; 1181 else 1182 cap->device_caps |= V4L2_CAP_VBI_CAPTURE; 1183 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS | 1184 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE; 1185 return 0; 1186 } 1187 1188 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1189 struct v4l2_fmtdesc *f) 1190 { 1191 if (f->index) 1192 return -EINVAL; 1193 1194 dprintk(1, "%s called\n", __func__); 1195 1196 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1197 strcpy(f->description, "Packed YUV2"); 1198 1199 f->flags = 0; 1200 f->pixelformat = V4L2_PIX_FMT_UYVY; 1201 1202 return 0; 1203 } 1204 1205 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 1206 struct v4l2_format *f) 1207 { 1208 struct au0828_dev *dev = video_drvdata(file); 1209 1210 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1211 dev->std_set_in_tuner_core, dev->dev_state); 1212 1213 f->fmt.pix.width = dev->width; 1214 f->fmt.pix.height = dev->height; 1215 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1216 f->fmt.pix.bytesperline = dev->bytesperline; 1217 f->fmt.pix.sizeimage = dev->frame_size; 1218 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */ 1219 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 1220 f->fmt.pix.priv = 0; 1221 return 0; 1222 } 1223 1224 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 1225 struct v4l2_format *f) 1226 { 1227 struct au0828_dev *dev = video_drvdata(file); 1228 1229 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1230 dev->std_set_in_tuner_core, dev->dev_state); 1231 1232 return au0828_set_format(dev, VIDIOC_TRY_FMT, f); 1233 } 1234 1235 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1236 struct v4l2_format *f) 1237 { 1238 struct au0828_dev *dev = video_drvdata(file); 1239 int rc; 1240 1241 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1242 dev->std_set_in_tuner_core, dev->dev_state); 1243 1244 rc = check_dev(dev); 1245 if (rc < 0) 1246 return rc; 1247 1248 if (vb2_is_busy(&dev->vb_vidq)) { 1249 pr_info("%s queue busy\n", __func__); 1250 rc = -EBUSY; 1251 goto out; 1252 } 1253 1254 rc = au0828_set_format(dev, VIDIOC_S_FMT, f); 1255 out: 1256 return rc; 1257 } 1258 1259 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) 1260 { 1261 struct au0828_dev *dev = video_drvdata(file); 1262 1263 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1264 dev->std_set_in_tuner_core, dev->dev_state); 1265 1266 if (norm == dev->std) 1267 return 0; 1268 1269 if (dev->streaming_users > 0) 1270 return -EBUSY; 1271 1272 dev->std = norm; 1273 1274 au0828_init_tuner(dev); 1275 1276 i2c_gate_ctrl(dev, 1); 1277 1278 /* 1279 * FIXME: when we support something other than 60Hz standards, 1280 * we are going to have to make the au0828 bridge adjust the size 1281 * of its capture buffer, which is currently hardcoded at 720x480 1282 */ 1283 1284 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm); 1285 1286 i2c_gate_ctrl(dev, 0); 1287 1288 return 0; 1289 } 1290 1291 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) 1292 { 1293 struct au0828_dev *dev = video_drvdata(file); 1294 1295 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1296 dev->std_set_in_tuner_core, dev->dev_state); 1297 1298 *norm = dev->std; 1299 return 0; 1300 } 1301 1302 static int vidioc_enum_input(struct file *file, void *priv, 1303 struct v4l2_input *input) 1304 { 1305 struct au0828_dev *dev = video_drvdata(file); 1306 unsigned int tmp; 1307 1308 static const char *inames[] = { 1309 [AU0828_VMUX_UNDEFINED] = "Undefined", 1310 [AU0828_VMUX_COMPOSITE] = "Composite", 1311 [AU0828_VMUX_SVIDEO] = "S-Video", 1312 [AU0828_VMUX_CABLE] = "Cable TV", 1313 [AU0828_VMUX_TELEVISION] = "Television", 1314 [AU0828_VMUX_DVB] = "DVB", 1315 [AU0828_VMUX_DEBUG] = "tv debug" 1316 }; 1317 1318 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1319 dev->std_set_in_tuner_core, dev->dev_state); 1320 1321 tmp = input->index; 1322 1323 if (tmp >= AU0828_MAX_INPUT) 1324 return -EINVAL; 1325 if (AUVI_INPUT(tmp).type == 0) 1326 return -EINVAL; 1327 1328 input->index = tmp; 1329 strcpy(input->name, inames[AUVI_INPUT(tmp).type]); 1330 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) || 1331 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) { 1332 input->type |= V4L2_INPUT_TYPE_TUNER; 1333 input->audioset = 1; 1334 } else { 1335 input->type |= V4L2_INPUT_TYPE_CAMERA; 1336 input->audioset = 2; 1337 } 1338 1339 input->std = dev->vdev.tvnorms; 1340 1341 return 0; 1342 } 1343 1344 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1345 { 1346 struct au0828_dev *dev = video_drvdata(file); 1347 1348 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1349 dev->std_set_in_tuner_core, dev->dev_state); 1350 1351 *i = dev->ctrl_input; 1352 return 0; 1353 } 1354 1355 static void au0828_s_input(struct au0828_dev *dev, int index) 1356 { 1357 int i; 1358 1359 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1360 dev->std_set_in_tuner_core, dev->dev_state); 1361 1362 switch (AUVI_INPUT(index).type) { 1363 case AU0828_VMUX_SVIDEO: 1364 dev->input_type = AU0828_VMUX_SVIDEO; 1365 dev->ctrl_ainput = 1; 1366 break; 1367 case AU0828_VMUX_COMPOSITE: 1368 dev->input_type = AU0828_VMUX_COMPOSITE; 1369 dev->ctrl_ainput = 1; 1370 break; 1371 case AU0828_VMUX_TELEVISION: 1372 dev->input_type = AU0828_VMUX_TELEVISION; 1373 dev->ctrl_ainput = 0; 1374 break; 1375 default: 1376 dprintk(1, "unknown input type set [%d]\n", 1377 AUVI_INPUT(index).type); 1378 break; 1379 } 1380 1381 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 1382 AUVI_INPUT(index).vmux, 0, 0); 1383 1384 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1385 int enable = 0; 1386 if (AUVI_INPUT(i).audio_setup == NULL) 1387 continue; 1388 1389 if (i == index) 1390 enable = 1; 1391 else 1392 enable = 0; 1393 if (enable) { 1394 (AUVI_INPUT(i).audio_setup)(dev, enable); 1395 } else { 1396 /* Make sure we leave it turned on if some 1397 other input is routed to this callback */ 1398 if ((AUVI_INPUT(i).audio_setup) != 1399 ((AUVI_INPUT(index).audio_setup))) { 1400 (AUVI_INPUT(i).audio_setup)(dev, enable); 1401 } 1402 } 1403 } 1404 1405 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 1406 AUVI_INPUT(index).amux, 0, 0); 1407 } 1408 1409 static int vidioc_s_input(struct file *file, void *priv, unsigned int index) 1410 { 1411 struct au0828_dev *dev = video_drvdata(file); 1412 1413 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__, 1414 index); 1415 if (index >= AU0828_MAX_INPUT) 1416 return -EINVAL; 1417 if (AUVI_INPUT(index).type == 0) 1418 return -EINVAL; 1419 dev->ctrl_input = index; 1420 au0828_s_input(dev, index); 1421 return 0; 1422 } 1423 1424 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a) 1425 { 1426 if (a->index > 1) 1427 return -EINVAL; 1428 1429 dprintk(1, "%s called\n", __func__); 1430 1431 if (a->index == 0) 1432 strcpy(a->name, "Television"); 1433 else 1434 strcpy(a->name, "Line in"); 1435 1436 a->capability = V4L2_AUDCAP_STEREO; 1437 return 0; 1438 } 1439 1440 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 1441 { 1442 struct au0828_dev *dev = video_drvdata(file); 1443 1444 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1445 dev->std_set_in_tuner_core, dev->dev_state); 1446 1447 a->index = dev->ctrl_ainput; 1448 if (a->index == 0) 1449 strcpy(a->name, "Television"); 1450 else 1451 strcpy(a->name, "Line in"); 1452 1453 a->capability = V4L2_AUDCAP_STEREO; 1454 return 0; 1455 } 1456 1457 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 1458 { 1459 struct au0828_dev *dev = video_drvdata(file); 1460 1461 if (a->index != dev->ctrl_ainput) 1462 return -EINVAL; 1463 1464 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1465 dev->std_set_in_tuner_core, dev->dev_state); 1466 return 0; 1467 } 1468 1469 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1470 { 1471 struct au0828_dev *dev = video_drvdata(file); 1472 1473 if (t->index != 0) 1474 return -EINVAL; 1475 1476 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1477 dev->std_set_in_tuner_core, dev->dev_state); 1478 1479 strcpy(t->name, "Auvitek tuner"); 1480 1481 au0828_init_tuner(dev); 1482 i2c_gate_ctrl(dev, 1); 1483 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 1484 i2c_gate_ctrl(dev, 0); 1485 return 0; 1486 } 1487 1488 static int vidioc_s_tuner(struct file *file, void *priv, 1489 const struct v4l2_tuner *t) 1490 { 1491 struct au0828_dev *dev = video_drvdata(file); 1492 1493 if (t->index != 0) 1494 return -EINVAL; 1495 1496 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1497 dev->std_set_in_tuner_core, dev->dev_state); 1498 1499 au0828_init_tuner(dev); 1500 i2c_gate_ctrl(dev, 1); 1501 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 1502 i2c_gate_ctrl(dev, 0); 1503 1504 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal, 1505 t->afc); 1506 1507 return 0; 1508 1509 } 1510 1511 static int vidioc_g_frequency(struct file *file, void *priv, 1512 struct v4l2_frequency *freq) 1513 { 1514 struct au0828_dev *dev = video_drvdata(file); 1515 1516 if (freq->tuner != 0) 1517 return -EINVAL; 1518 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1519 dev->std_set_in_tuner_core, dev->dev_state); 1520 freq->frequency = dev->ctrl_freq; 1521 return 0; 1522 } 1523 1524 static int vidioc_s_frequency(struct file *file, void *priv, 1525 const struct v4l2_frequency *freq) 1526 { 1527 struct au0828_dev *dev = video_drvdata(file); 1528 struct v4l2_frequency new_freq = *freq; 1529 1530 if (freq->tuner != 0) 1531 return -EINVAL; 1532 1533 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1534 dev->std_set_in_tuner_core, dev->dev_state); 1535 1536 au0828_init_tuner(dev); 1537 i2c_gate_ctrl(dev, 1); 1538 1539 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq); 1540 /* Get the actual set (and possibly clamped) frequency */ 1541 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq); 1542 dev->ctrl_freq = new_freq.frequency; 1543 1544 i2c_gate_ctrl(dev, 0); 1545 1546 au0828_analog_stream_reset(dev); 1547 1548 return 0; 1549 } 1550 1551 1552 /* RAW VBI ioctls */ 1553 1554 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 1555 struct v4l2_format *format) 1556 { 1557 struct au0828_dev *dev = video_drvdata(file); 1558 1559 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1560 dev->std_set_in_tuner_core, dev->dev_state); 1561 1562 format->fmt.vbi.samples_per_line = dev->vbi_width; 1563 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1564 format->fmt.vbi.offset = 0; 1565 format->fmt.vbi.flags = 0; 1566 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 1567 1568 format->fmt.vbi.count[0] = dev->vbi_height; 1569 format->fmt.vbi.count[1] = dev->vbi_height; 1570 format->fmt.vbi.start[0] = 21; 1571 format->fmt.vbi.start[1] = 284; 1572 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved)); 1573 1574 return 0; 1575 } 1576 1577 static int vidioc_cropcap(struct file *file, void *priv, 1578 struct v4l2_cropcap *cc) 1579 { 1580 struct au0828_dev *dev = video_drvdata(file); 1581 1582 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1583 return -EINVAL; 1584 1585 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1586 dev->std_set_in_tuner_core, dev->dev_state); 1587 1588 cc->bounds.left = 0; 1589 cc->bounds.top = 0; 1590 cc->bounds.width = dev->width; 1591 cc->bounds.height = dev->height; 1592 1593 cc->defrect = cc->bounds; 1594 1595 cc->pixelaspect.numerator = 54; 1596 cc->pixelaspect.denominator = 59; 1597 1598 return 0; 1599 } 1600 1601 #ifdef CONFIG_VIDEO_ADV_DEBUG 1602 static int vidioc_g_register(struct file *file, void *priv, 1603 struct v4l2_dbg_register *reg) 1604 { 1605 struct au0828_dev *dev = video_drvdata(file); 1606 1607 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1608 dev->std_set_in_tuner_core, dev->dev_state); 1609 1610 reg->val = au0828_read(dev, reg->reg); 1611 reg->size = 1; 1612 return 0; 1613 } 1614 1615 static int vidioc_s_register(struct file *file, void *priv, 1616 const struct v4l2_dbg_register *reg) 1617 { 1618 struct au0828_dev *dev = video_drvdata(file); 1619 1620 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1621 dev->std_set_in_tuner_core, dev->dev_state); 1622 1623 return au0828_writereg(dev, reg->reg, reg->val); 1624 } 1625 #endif 1626 1627 static int vidioc_log_status(struct file *file, void *fh) 1628 { 1629 struct video_device *vdev = video_devdata(file); 1630 1631 dprintk(1, "%s called\n", __func__); 1632 1633 v4l2_ctrl_log_status(file, fh); 1634 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status); 1635 return 0; 1636 } 1637 1638 void au0828_v4l2_suspend(struct au0828_dev *dev) 1639 { 1640 struct urb *urb; 1641 int i; 1642 1643 pr_info("stopping V4L2\n"); 1644 1645 if (dev->stream_state == STREAM_ON) { 1646 pr_info("stopping V4L2 active URBs\n"); 1647 au0828_analog_stream_disable(dev); 1648 /* stop urbs */ 1649 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1650 urb = dev->isoc_ctl.urb[i]; 1651 if (urb) { 1652 if (!irqs_disabled()) 1653 usb_kill_urb(urb); 1654 else 1655 usb_unlink_urb(urb); 1656 } 1657 } 1658 } 1659 1660 if (dev->vid_timeout_running) 1661 del_timer_sync(&dev->vid_timeout); 1662 if (dev->vbi_timeout_running) 1663 del_timer_sync(&dev->vbi_timeout); 1664 } 1665 1666 void au0828_v4l2_resume(struct au0828_dev *dev) 1667 { 1668 int i, rc; 1669 1670 pr_info("restarting V4L2\n"); 1671 1672 if (dev->stream_state == STREAM_ON) { 1673 au0828_stream_interrupt(dev); 1674 au0828_init_tuner(dev); 1675 } 1676 1677 if (dev->vid_timeout_running) 1678 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 1679 if (dev->vbi_timeout_running) 1680 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1681 1682 /* If we were doing ac97 instead of i2s, it would go here...*/ 1683 au0828_i2s_init(dev); 1684 1685 au0828_analog_stream_enable(dev); 1686 1687 if (!(dev->stream_state == STREAM_ON)) { 1688 au0828_analog_stream_reset(dev); 1689 /* submit urbs */ 1690 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1691 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 1692 if (rc) { 1693 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 1694 i, rc); 1695 au0828_uninit_isoc(dev); 1696 } 1697 } 1698 } 1699 } 1700 1701 static struct v4l2_file_operations au0828_v4l_fops = { 1702 .owner = THIS_MODULE, 1703 .open = au0828_v4l2_open, 1704 .release = au0828_v4l2_close, 1705 .read = vb2_fop_read, 1706 .poll = vb2_fop_poll, 1707 .mmap = vb2_fop_mmap, 1708 .unlocked_ioctl = video_ioctl2, 1709 }; 1710 1711 static const struct v4l2_ioctl_ops video_ioctl_ops = { 1712 .vidioc_querycap = vidioc_querycap, 1713 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1714 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1715 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1716 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1717 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1718 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1719 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1720 .vidioc_enumaudio = vidioc_enumaudio, 1721 .vidioc_g_audio = vidioc_g_audio, 1722 .vidioc_s_audio = vidioc_s_audio, 1723 .vidioc_cropcap = vidioc_cropcap, 1724 1725 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1726 .vidioc_create_bufs = vb2_ioctl_create_bufs, 1727 .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 1728 .vidioc_querybuf = vb2_ioctl_querybuf, 1729 .vidioc_qbuf = vb2_ioctl_qbuf, 1730 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1731 .vidioc_expbuf = vb2_ioctl_expbuf, 1732 1733 .vidioc_s_std = vidioc_s_std, 1734 .vidioc_g_std = vidioc_g_std, 1735 .vidioc_enum_input = vidioc_enum_input, 1736 .vidioc_g_input = vidioc_g_input, 1737 .vidioc_s_input = vidioc_s_input, 1738 1739 .vidioc_streamon = vb2_ioctl_streamon, 1740 .vidioc_streamoff = vb2_ioctl_streamoff, 1741 1742 .vidioc_g_tuner = vidioc_g_tuner, 1743 .vidioc_s_tuner = vidioc_s_tuner, 1744 .vidioc_g_frequency = vidioc_g_frequency, 1745 .vidioc_s_frequency = vidioc_s_frequency, 1746 #ifdef CONFIG_VIDEO_ADV_DEBUG 1747 .vidioc_g_register = vidioc_g_register, 1748 .vidioc_s_register = vidioc_s_register, 1749 #endif 1750 .vidioc_log_status = vidioc_log_status, 1751 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1752 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1753 }; 1754 1755 static const struct video_device au0828_video_template = { 1756 .fops = &au0828_v4l_fops, 1757 .release = video_device_release_empty, 1758 .ioctl_ops = &video_ioctl_ops, 1759 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M, 1760 }; 1761 1762 static int au0828_vb2_setup(struct au0828_dev *dev) 1763 { 1764 int rc; 1765 struct vb2_queue *q; 1766 1767 /* Setup Videobuf2 for Video capture */ 1768 q = &dev->vb_vidq; 1769 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1770 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1771 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1772 q->drv_priv = dev; 1773 q->buf_struct_size = sizeof(struct au0828_buffer); 1774 q->ops = &au0828_video_qops; 1775 q->mem_ops = &vb2_vmalloc_memops; 1776 1777 rc = vb2_queue_init(q); 1778 if (rc < 0) 1779 return rc; 1780 1781 /* Setup Videobuf2 for VBI capture */ 1782 q = &dev->vb_vbiq; 1783 q->type = V4L2_BUF_TYPE_VBI_CAPTURE; 1784 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1785 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1786 q->drv_priv = dev; 1787 q->buf_struct_size = sizeof(struct au0828_buffer); 1788 q->ops = &au0828_vbi_qops; 1789 q->mem_ops = &vb2_vmalloc_memops; 1790 1791 rc = vb2_queue_init(q); 1792 if (rc < 0) 1793 return rc; 1794 1795 return 0; 1796 } 1797 1798 static void au0828_analog_create_entities(struct au0828_dev *dev) 1799 { 1800 #if defined(CONFIG_MEDIA_CONTROLLER) 1801 static const char * const inames[] = { 1802 [AU0828_VMUX_COMPOSITE] = "Composite", 1803 [AU0828_VMUX_SVIDEO] = "S-Video", 1804 [AU0828_VMUX_CABLE] = "Cable TV", 1805 [AU0828_VMUX_TELEVISION] = "Television", 1806 [AU0828_VMUX_DVB] = "DVB", 1807 [AU0828_VMUX_DEBUG] = "tv debug" 1808 }; 1809 int ret, i; 1810 1811 /* Initialize Video and VBI pads */ 1812 dev->video_pad.flags = MEDIA_PAD_FL_SINK; 1813 ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad); 1814 if (ret < 0) 1815 pr_err("failed to initialize video media entity!\n"); 1816 1817 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK; 1818 ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad); 1819 if (ret < 0) 1820 pr_err("failed to initialize vbi media entity!\n"); 1821 1822 /* Create entities for each input connector */ 1823 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1824 struct media_entity *ent = &dev->input_ent[i]; 1825 1826 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) 1827 break; 1828 1829 ent->name = inames[AUVI_INPUT(i).type]; 1830 ent->flags = MEDIA_ENT_FL_CONNECTOR; 1831 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE; 1832 1833 switch (AUVI_INPUT(i).type) { 1834 case AU0828_VMUX_COMPOSITE: 1835 ent->function = MEDIA_ENT_F_CONN_COMPOSITE; 1836 break; 1837 case AU0828_VMUX_SVIDEO: 1838 ent->function = MEDIA_ENT_F_CONN_SVIDEO; 1839 break; 1840 case AU0828_VMUX_CABLE: 1841 case AU0828_VMUX_TELEVISION: 1842 case AU0828_VMUX_DVB: 1843 ent->function = MEDIA_ENT_F_CONN_RF; 1844 break; 1845 default: /* AU0828_VMUX_DEBUG */ 1846 ent->function = MEDIA_ENT_F_CONN_TEST; 1847 break; 1848 } 1849 1850 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]); 1851 if (ret < 0) 1852 pr_err("failed to initialize input pad[%d]!\n", i); 1853 1854 ret = media_device_register_entity(dev->media_dev, ent); 1855 if (ret < 0) 1856 pr_err("failed to register input entity %d!\n", i); 1857 } 1858 #endif 1859 } 1860 1861 /**************************************************************************/ 1862 1863 int au0828_analog_register(struct au0828_dev *dev, 1864 struct usb_interface *interface) 1865 { 1866 int retval = -ENOMEM; 1867 struct usb_host_interface *iface_desc; 1868 struct usb_endpoint_descriptor *endpoint; 1869 int i, ret; 1870 1871 dprintk(1, "au0828_analog_register called for intf#%d!\n", 1872 interface->cur_altsetting->desc.bInterfaceNumber); 1873 1874 /* set au0828 usb interface0 to as5 */ 1875 retval = usb_set_interface(dev->usbdev, 1876 interface->cur_altsetting->desc.bInterfaceNumber, 5); 1877 if (retval != 0) { 1878 pr_info("Failure setting usb interface0 to as5\n"); 1879 return retval; 1880 } 1881 1882 /* Figure out which endpoint has the isoc interface */ 1883 iface_desc = interface->cur_altsetting; 1884 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { 1885 endpoint = &iface_desc->endpoint[i].desc; 1886 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1887 == USB_DIR_IN) && 1888 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1889 == USB_ENDPOINT_XFER_ISOC)) { 1890 1891 /* we find our isoc in endpoint */ 1892 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize); 1893 dev->max_pkt_size = (tmp & 0x07ff) * 1894 (((tmp & 0x1800) >> 11) + 1); 1895 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress; 1896 dprintk(1, 1897 "Found isoc endpoint 0x%02x, max size = %d\n", 1898 dev->isoc_in_endpointaddr, dev->max_pkt_size); 1899 } 1900 } 1901 if (!(dev->isoc_in_endpointaddr)) { 1902 pr_info("Could not locate isoc endpoint\n"); 1903 return -ENODEV; 1904 } 1905 1906 init_waitqueue_head(&dev->open); 1907 spin_lock_init(&dev->slock); 1908 1909 /* init video dma queues */ 1910 INIT_LIST_HEAD(&dev->vidq.active); 1911 INIT_LIST_HEAD(&dev->vbiq.active); 1912 1913 setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout, 1914 (unsigned long)dev); 1915 setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 1916 (unsigned long)dev); 1917 1918 dev->width = NTSC_STD_W; 1919 dev->height = NTSC_STD_H; 1920 dev->field_size = dev->width * dev->height; 1921 dev->frame_size = dev->field_size << 1; 1922 dev->bytesperline = dev->width << 1; 1923 dev->vbi_width = 720; 1924 dev->vbi_height = 1; 1925 dev->ctrl_ainput = 0; 1926 dev->ctrl_freq = 960; 1927 dev->std = V4L2_STD_NTSC_M; 1928 au0828_s_input(dev, 0); 1929 1930 mutex_init(&dev->vb_queue_lock); 1931 mutex_init(&dev->vb_vbi_queue_lock); 1932 1933 /* Fill the video capture device struct */ 1934 dev->vdev = au0828_video_template; 1935 dev->vdev.v4l2_dev = &dev->v4l2_dev; 1936 dev->vdev.lock = &dev->lock; 1937 dev->vdev.queue = &dev->vb_vidq; 1938 dev->vdev.queue->lock = &dev->vb_queue_lock; 1939 strcpy(dev->vdev.name, "au0828a video"); 1940 1941 /* Setup the VBI device */ 1942 dev->vbi_dev = au0828_video_template; 1943 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev; 1944 dev->vbi_dev.lock = &dev->lock; 1945 dev->vbi_dev.queue = &dev->vb_vbiq; 1946 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock; 1947 strcpy(dev->vbi_dev.name, "au0828a vbi"); 1948 1949 /* Init entities at the Media Controller */ 1950 au0828_analog_create_entities(dev); 1951 1952 /* initialize videobuf2 stuff */ 1953 retval = au0828_vb2_setup(dev); 1954 if (retval != 0) { 1955 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n", 1956 retval); 1957 return -ENODEV; 1958 } 1959 1960 /* Register the v4l2 device */ 1961 video_set_drvdata(&dev->vdev, dev); 1962 retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1); 1963 if (retval != 0) { 1964 dprintk(1, "unable to register video device (error = %d).\n", 1965 retval); 1966 ret = -ENODEV; 1967 goto err_reg_vdev; 1968 } 1969 1970 /* Register the vbi device */ 1971 video_set_drvdata(&dev->vbi_dev, dev); 1972 retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1); 1973 if (retval != 0) { 1974 dprintk(1, "unable to register vbi device (error = %d).\n", 1975 retval); 1976 ret = -ENODEV; 1977 goto err_reg_vbi_dev; 1978 } 1979 1980 dprintk(1, "%s completed!\n", __func__); 1981 1982 return 0; 1983 1984 err_reg_vbi_dev: 1985 video_unregister_device(&dev->vdev); 1986 err_reg_vdev: 1987 vb2_queue_release(&dev->vb_vidq); 1988 vb2_queue_release(&dev->vb_vbiq); 1989 return ret; 1990 } 1991 1992