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 18 /* Developer Notes: 19 * 20 * The hardware scaler supported is unimplemented 21 * AC97 audio support is unimplemented (only i2s audio mode) 22 * 23 */ 24 25 #include "au0828.h" 26 #include "au8522.h" 27 28 #include <linux/module.h> 29 #include <linux/slab.h> 30 #include <linux/init.h> 31 #include <linux/device.h> 32 #include <media/v4l2-common.h> 33 #include <media/v4l2-mc.h> 34 #include <media/v4l2-ioctl.h> 35 #include <media/v4l2-event.h> 36 #include <media/tuner.h> 37 #include "au0828-reg.h" 38 39 static DEFINE_MUTEX(au0828_sysfs_lock); 40 41 /* ------------------------------------------------------------------ 42 Videobuf operations 43 ------------------------------------------------------------------*/ 44 45 static unsigned int isoc_debug; 46 module_param(isoc_debug, int, 0644); 47 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); 48 49 #define au0828_isocdbg(fmt, arg...) \ 50 do {\ 51 if (isoc_debug) { \ 52 pr_info("au0828 %s :"fmt, \ 53 __func__ , ##arg); \ 54 } \ 55 } while (0) 56 57 static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val) 58 { 59 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl) 60 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val); 61 } 62 63 static inline void print_err_status(struct au0828_dev *dev, 64 int packet, int status) 65 { 66 char *errmsg = "Unknown"; 67 68 switch (status) { 69 case -ENOENT: 70 errmsg = "unlinked synchronously"; 71 break; 72 case -ECONNRESET: 73 errmsg = "unlinked asynchronously"; 74 break; 75 case -ENOSR: 76 errmsg = "Buffer error (overrun)"; 77 break; 78 case -EPIPE: 79 errmsg = "Stalled (device not responding)"; 80 break; 81 case -EOVERFLOW: 82 errmsg = "Babble (bad cable?)"; 83 break; 84 case -EPROTO: 85 errmsg = "Bit-stuff error (bad cable?)"; 86 break; 87 case -EILSEQ: 88 errmsg = "CRC/Timeout (could be anything)"; 89 break; 90 case -ETIME: 91 errmsg = "Device does not respond"; 92 break; 93 } 94 if (packet < 0) { 95 au0828_isocdbg("URB status %d [%s].\n", status, errmsg); 96 } else { 97 au0828_isocdbg("URB packet %d, status %d [%s].\n", 98 packet, status, errmsg); 99 } 100 } 101 102 static int check_dev(struct au0828_dev *dev) 103 { 104 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) { 105 pr_info("v4l2 ioctl: device not present\n"); 106 return -ENODEV; 107 } 108 109 if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) { 110 pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n"); 111 return -EIO; 112 } 113 return 0; 114 } 115 116 /* 117 * IRQ callback, called by URB callback 118 */ 119 static void au0828_irq_callback(struct urb *urb) 120 { 121 struct au0828_dmaqueue *dma_q = urb->context; 122 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 123 unsigned long flags = 0; 124 int i; 125 126 switch (urb->status) { 127 case 0: /* success */ 128 case -ETIMEDOUT: /* NAK */ 129 break; 130 case -ECONNRESET: /* kill */ 131 case -ENOENT: 132 case -ESHUTDOWN: 133 au0828_isocdbg("au0828_irq_callback called: status kill\n"); 134 return; 135 default: /* unknown error */ 136 au0828_isocdbg("urb completion error %d.\n", urb->status); 137 break; 138 } 139 140 /* Copy data from URB */ 141 spin_lock_irqsave(&dev->slock, flags); 142 dev->isoc_ctl.isoc_copy(dev, urb); 143 spin_unlock_irqrestore(&dev->slock, flags); 144 145 /* Reset urb buffers */ 146 for (i = 0; i < urb->number_of_packets; i++) { 147 urb->iso_frame_desc[i].status = 0; 148 urb->iso_frame_desc[i].actual_length = 0; 149 } 150 urb->status = 0; 151 152 urb->status = usb_submit_urb(urb, GFP_ATOMIC); 153 if (urb->status) { 154 au0828_isocdbg("urb resubmit failed (error=%i)\n", 155 urb->status); 156 } 157 dev->stream_state = STREAM_ON; 158 } 159 160 /* 161 * Stop and Deallocate URBs 162 */ 163 static void au0828_uninit_isoc(struct au0828_dev *dev) 164 { 165 struct urb *urb; 166 int i; 167 168 au0828_isocdbg("au0828: called au0828_uninit_isoc\n"); 169 170 dev->isoc_ctl.nfields = -1; 171 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 172 urb = dev->isoc_ctl.urb[i]; 173 if (urb) { 174 if (!irqs_disabled()) 175 usb_kill_urb(urb); 176 else 177 usb_unlink_urb(urb); 178 179 if (dev->isoc_ctl.transfer_buffer[i]) { 180 usb_free_coherent(dev->usbdev, 181 urb->transfer_buffer_length, 182 dev->isoc_ctl.transfer_buffer[i], 183 urb->transfer_dma); 184 } 185 usb_free_urb(urb); 186 dev->isoc_ctl.urb[i] = NULL; 187 } 188 dev->isoc_ctl.transfer_buffer[i] = NULL; 189 } 190 191 kfree(dev->isoc_ctl.urb); 192 kfree(dev->isoc_ctl.transfer_buffer); 193 194 dev->isoc_ctl.urb = NULL; 195 dev->isoc_ctl.transfer_buffer = NULL; 196 dev->isoc_ctl.num_bufs = 0; 197 198 dev->stream_state = STREAM_OFF; 199 } 200 201 /* 202 * Allocate URBs and start IRQ 203 */ 204 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets, 205 int num_bufs, int max_pkt_size, 206 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb)) 207 { 208 struct au0828_dmaqueue *dma_q = &dev->vidq; 209 int i; 210 int sb_size, pipe; 211 struct urb *urb; 212 int j, k; 213 int rc; 214 215 au0828_isocdbg("au0828: called au0828_prepare_isoc\n"); 216 217 dev->isoc_ctl.isoc_copy = isoc_copy; 218 dev->isoc_ctl.num_bufs = num_bufs; 219 220 dev->isoc_ctl.urb = kcalloc(num_bufs, sizeof(void *), GFP_KERNEL); 221 if (!dev->isoc_ctl.urb) { 222 au0828_isocdbg("cannot alloc memory for usb buffers\n"); 223 return -ENOMEM; 224 } 225 226 dev->isoc_ctl.transfer_buffer = kcalloc(num_bufs, sizeof(void *), 227 GFP_KERNEL); 228 if (!dev->isoc_ctl.transfer_buffer) { 229 au0828_isocdbg("cannot allocate memory for usb transfer\n"); 230 kfree(dev->isoc_ctl.urb); 231 return -ENOMEM; 232 } 233 234 dev->isoc_ctl.max_pkt_size = max_pkt_size; 235 dev->isoc_ctl.buf = NULL; 236 237 sb_size = max_packets * dev->isoc_ctl.max_pkt_size; 238 239 /* allocate urbs and transfer buffers */ 240 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 241 urb = usb_alloc_urb(max_packets, GFP_KERNEL); 242 if (!urb) { 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 buffer %i%s\n", 252 sb_size, i, 253 in_interrupt() ? " while in int" : ""); 254 au0828_uninit_isoc(dev); 255 return -ENOMEM; 256 } 257 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size); 258 259 pipe = usb_rcvisocpipe(dev->usbdev, 260 dev->isoc_in_endpointaddr), 261 262 usb_fill_int_urb(urb, dev->usbdev, pipe, 263 dev->isoc_ctl.transfer_buffer[i], sb_size, 264 au0828_irq_callback, dma_q, 1); 265 266 urb->number_of_packets = max_packets; 267 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; 268 269 k = 0; 270 for (j = 0; j < max_packets; j++) { 271 urb->iso_frame_desc[j].offset = k; 272 urb->iso_frame_desc[j].length = 273 dev->isoc_ctl.max_pkt_size; 274 k += dev->isoc_ctl.max_pkt_size; 275 } 276 } 277 278 /* submit urbs and enables IRQ */ 279 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 280 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 281 if (rc) { 282 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 283 i, rc); 284 au0828_uninit_isoc(dev); 285 return rc; 286 } 287 } 288 289 return 0; 290 } 291 292 /* 293 * Announces that a buffer were filled and request the next 294 */ 295 static inline void buffer_filled(struct au0828_dev *dev, 296 struct au0828_dmaqueue *dma_q, 297 struct au0828_buffer *buf) 298 { 299 struct vb2_v4l2_buffer *vb = &buf->vb; 300 struct vb2_queue *q = vb->vb2_buf.vb2_queue; 301 302 /* Advice that buffer was filled */ 303 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field); 304 305 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 306 vb->sequence = dev->frame_count++; 307 else 308 vb->sequence = dev->vbi_frame_count++; 309 310 vb->field = V4L2_FIELD_INTERLACED; 311 vb->vb2_buf.timestamp = ktime_get_ns(); 312 vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE); 313 } 314 315 /* 316 * Identify the buffer header type and properly handles 317 */ 318 static void au0828_copy_video(struct au0828_dev *dev, 319 struct au0828_dmaqueue *dma_q, 320 struct au0828_buffer *buf, 321 unsigned char *p, 322 unsigned char *outp, unsigned long len) 323 { 324 void *fieldstart, *startwrite, *startread; 325 int linesdone, currlinedone, offset, lencopy, remain; 326 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */ 327 328 if (len == 0) 329 return; 330 331 if (dma_q->pos + len > buf->length) 332 len = buf->length - dma_q->pos; 333 334 startread = p; 335 remain = len; 336 337 /* Interlaces frame */ 338 if (buf->top_field) 339 fieldstart = outp; 340 else 341 fieldstart = outp + bytesperline; 342 343 linesdone = dma_q->pos / bytesperline; 344 currlinedone = dma_q->pos % bytesperline; 345 offset = linesdone * bytesperline * 2 + currlinedone; 346 startwrite = fieldstart + offset; 347 lencopy = bytesperline - currlinedone; 348 lencopy = lencopy > remain ? remain : lencopy; 349 350 if ((char *)startwrite + lencopy > (char *)outp + buf->length) { 351 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n", 352 ((char *)startwrite + lencopy) - 353 ((char *)outp + buf->length)); 354 remain = (char *)outp + buf->length - (char *)startwrite; 355 lencopy = remain; 356 } 357 if (lencopy <= 0) 358 return; 359 memcpy(startwrite, startread, lencopy); 360 361 remain -= lencopy; 362 363 while (remain > 0) { 364 startwrite += lencopy + bytesperline; 365 startread += lencopy; 366 if (bytesperline > remain) 367 lencopy = remain; 368 else 369 lencopy = bytesperline; 370 371 if ((char *)startwrite + lencopy > (char *)outp + 372 buf->length) { 373 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n", 374 ((char *)startwrite + lencopy) - 375 ((char *)outp + buf->length)); 376 lencopy = remain = (char *)outp + buf->length - 377 (char *)startwrite; 378 } 379 if (lencopy <= 0) 380 break; 381 382 memcpy(startwrite, startread, lencopy); 383 384 remain -= lencopy; 385 } 386 387 if (offset > 1440) { 388 /* We have enough data to check for greenscreen */ 389 if (outp[0] < 0x60 && outp[1440] < 0x60) 390 dev->greenscreen_detected = 1; 391 } 392 393 dma_q->pos += len; 394 } 395 396 /* 397 * video-buf generic routine to get the next available buffer 398 */ 399 static inline void get_next_buf(struct au0828_dmaqueue *dma_q, 400 struct au0828_buffer **buf) 401 { 402 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 403 404 if (list_empty(&dma_q->active)) { 405 au0828_isocdbg("No active queue to serve\n"); 406 dev->isoc_ctl.buf = NULL; 407 *buf = NULL; 408 return; 409 } 410 411 /* Get the next buffer */ 412 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 413 /* Cleans up buffer - Useful for testing for frame/URB loss */ 414 list_del(&(*buf)->list); 415 dma_q->pos = 0; 416 (*buf)->vb_buf = (*buf)->mem; 417 dev->isoc_ctl.buf = *buf; 418 419 return; 420 } 421 422 static void au0828_copy_vbi(struct au0828_dev *dev, 423 struct au0828_dmaqueue *dma_q, 424 struct au0828_buffer *buf, 425 unsigned char *p, 426 unsigned char *outp, unsigned long len) 427 { 428 unsigned char *startwrite, *startread; 429 int bytesperline; 430 int i, j = 0; 431 432 if (dev == NULL) { 433 au0828_isocdbg("dev is null\n"); 434 return; 435 } 436 437 if (dma_q == NULL) { 438 au0828_isocdbg("dma_q is null\n"); 439 return; 440 } 441 if (buf == NULL) 442 return; 443 if (p == NULL) { 444 au0828_isocdbg("p is null\n"); 445 return; 446 } 447 if (outp == NULL) { 448 au0828_isocdbg("outp is null\n"); 449 return; 450 } 451 452 bytesperline = dev->vbi_width; 453 454 if (dma_q->pos + len > buf->length) 455 len = buf->length - dma_q->pos; 456 457 startread = p; 458 startwrite = outp + (dma_q->pos / 2); 459 460 /* Make sure the bottom field populates the second half of the frame */ 461 if (buf->top_field == 0) 462 startwrite += bytesperline * dev->vbi_height; 463 464 for (i = 0; i < len; i += 2) 465 startwrite[j++] = startread[i+1]; 466 467 dma_q->pos += len; 468 } 469 470 471 /* 472 * video-buf generic routine to get the next available VBI buffer 473 */ 474 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q, 475 struct au0828_buffer **buf) 476 { 477 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq); 478 479 if (list_empty(&dma_q->active)) { 480 au0828_isocdbg("No active queue to serve\n"); 481 dev->isoc_ctl.vbi_buf = NULL; 482 *buf = NULL; 483 return; 484 } 485 486 /* Get the next buffer */ 487 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 488 /* Cleans up buffer - Useful for testing for frame/URB loss */ 489 list_del(&(*buf)->list); 490 dma_q->pos = 0; 491 (*buf)->vb_buf = (*buf)->mem; 492 dev->isoc_ctl.vbi_buf = *buf; 493 return; 494 } 495 496 /* 497 * Controls the isoc copy of each urb packet 498 */ 499 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb) 500 { 501 struct au0828_buffer *buf; 502 struct au0828_buffer *vbi_buf; 503 struct au0828_dmaqueue *dma_q = urb->context; 504 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq; 505 unsigned char *outp = NULL; 506 unsigned char *vbioutp = NULL; 507 int i, len = 0, rc = 1; 508 unsigned char *p; 509 unsigned char fbyte; 510 unsigned int vbi_field_size; 511 unsigned int remain, lencopy; 512 513 if (!dev) 514 return 0; 515 516 if (test_bit(DEV_DISCONNECTED, &dev->dev_state) || 517 test_bit(DEV_MISCONFIGURED, &dev->dev_state)) 518 return 0; 519 520 if (urb->status < 0) { 521 print_err_status(dev, -1, urb->status); 522 if (urb->status == -ENOENT) 523 return 0; 524 } 525 526 buf = dev->isoc_ctl.buf; 527 if (buf != NULL) 528 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 529 530 vbi_buf = dev->isoc_ctl.vbi_buf; 531 if (vbi_buf != NULL) 532 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0); 533 534 for (i = 0; i < urb->number_of_packets; i++) { 535 int status = urb->iso_frame_desc[i].status; 536 537 if (status < 0) { 538 print_err_status(dev, i, status); 539 if (urb->iso_frame_desc[i].status != -EPROTO) 540 continue; 541 } 542 543 if (urb->iso_frame_desc[i].actual_length <= 0) 544 continue; 545 546 if (urb->iso_frame_desc[i].actual_length > 547 dev->max_pkt_size) { 548 au0828_isocdbg("packet bigger than packet size"); 549 continue; 550 } 551 552 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset; 553 fbyte = p[0]; 554 len = urb->iso_frame_desc[i].actual_length - 4; 555 p += 4; 556 557 if (fbyte & 0x80) { 558 len -= 4; 559 p += 4; 560 au0828_isocdbg("Video frame %s\n", 561 (fbyte & 0x40) ? "odd" : "even"); 562 if (fbyte & 0x40) { 563 /* VBI */ 564 if (vbi_buf != NULL) 565 buffer_filled(dev, vbi_dma_q, vbi_buf); 566 vbi_get_next_buf(vbi_dma_q, &vbi_buf); 567 if (vbi_buf == NULL) 568 vbioutp = NULL; 569 else 570 vbioutp = vb2_plane_vaddr( 571 &vbi_buf->vb.vb2_buf, 0); 572 573 /* Video */ 574 if (buf != NULL) 575 buffer_filled(dev, dma_q, buf); 576 get_next_buf(dma_q, &buf); 577 if (buf == NULL) 578 outp = NULL; 579 else 580 outp = vb2_plane_vaddr( 581 &buf->vb.vb2_buf, 0); 582 583 /* As long as isoc traffic is arriving, keep 584 resetting the timer */ 585 if (dev->vid_timeout_running) 586 mod_timer(&dev->vid_timeout, 587 jiffies + (HZ / 10)); 588 if (dev->vbi_timeout_running) 589 mod_timer(&dev->vbi_timeout, 590 jiffies + (HZ / 10)); 591 } 592 593 if (buf != NULL) { 594 if (fbyte & 0x40) 595 buf->top_field = 1; 596 else 597 buf->top_field = 0; 598 } 599 600 if (vbi_buf != NULL) { 601 if (fbyte & 0x40) 602 vbi_buf->top_field = 1; 603 else 604 vbi_buf->top_field = 0; 605 } 606 607 dev->vbi_read = 0; 608 vbi_dma_q->pos = 0; 609 dma_q->pos = 0; 610 } 611 612 vbi_field_size = dev->vbi_width * dev->vbi_height * 2; 613 if (dev->vbi_read < vbi_field_size) { 614 remain = vbi_field_size - dev->vbi_read; 615 if (len < remain) 616 lencopy = len; 617 else 618 lencopy = remain; 619 620 if (vbi_buf != NULL) 621 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p, 622 vbioutp, len); 623 624 len -= lencopy; 625 p += lencopy; 626 dev->vbi_read += lencopy; 627 } 628 629 if (dev->vbi_read >= vbi_field_size && buf != NULL) 630 au0828_copy_video(dev, dma_q, buf, p, outp, len); 631 } 632 return rc; 633 } 634 635 void au0828_usb_v4l2_media_release(struct au0828_dev *dev) 636 { 637 #ifdef CONFIG_MEDIA_CONTROLLER 638 int i; 639 640 for (i = 0; i < AU0828_MAX_INPUT; i++) { 641 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) 642 return; 643 media_device_unregister_entity(&dev->input_ent[i]); 644 } 645 #endif 646 } 647 648 static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev) 649 { 650 struct au0828_dev *dev = 651 container_of(v4l2_dev, struct au0828_dev, v4l2_dev); 652 653 v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl); 654 v4l2_device_unregister(&dev->v4l2_dev); 655 au0828_usb_v4l2_media_release(dev); 656 au0828_usb_release(dev); 657 } 658 659 int au0828_v4l2_device_register(struct usb_interface *interface, 660 struct au0828_dev *dev) 661 { 662 int retval; 663 664 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 665 return 0; 666 667 /* Create the v4l2_device */ 668 #ifdef CONFIG_MEDIA_CONTROLLER 669 dev->v4l2_dev.mdev = dev->media_dev; 670 #endif 671 retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev); 672 if (retval) { 673 pr_err("%s() v4l2_device_register failed\n", 674 __func__); 675 return retval; 676 } 677 678 dev->v4l2_dev.release = au0828_usb_v4l2_release; 679 680 /* This control handler will inherit the controls from au8522 */ 681 retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4); 682 if (retval) { 683 pr_err("%s() v4l2_ctrl_handler_init failed\n", 684 __func__); 685 return retval; 686 } 687 dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl; 688 689 return 0; 690 } 691 692 static int queue_setup(struct vb2_queue *vq, 693 unsigned int *nbuffers, unsigned int *nplanes, 694 unsigned int sizes[], struct device *alloc_devs[]) 695 { 696 struct au0828_dev *dev = vb2_get_drv_priv(vq); 697 unsigned long size = dev->height * dev->bytesperline; 698 699 if (*nplanes) 700 return sizes[0] < size ? -EINVAL : 0; 701 *nplanes = 1; 702 sizes[0] = size; 703 return 0; 704 } 705 706 static int 707 buffer_prepare(struct vb2_buffer *vb) 708 { 709 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 710 struct au0828_buffer *buf = container_of(vbuf, 711 struct au0828_buffer, vb); 712 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 713 714 buf->length = dev->height * dev->bytesperline; 715 716 if (vb2_plane_size(vb, 0) < buf->length) { 717 pr_err("%s data will not fit into plane (%lu < %lu)\n", 718 __func__, vb2_plane_size(vb, 0), buf->length); 719 return -EINVAL; 720 } 721 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length); 722 return 0; 723 } 724 725 static void 726 buffer_queue(struct vb2_buffer *vb) 727 { 728 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 729 struct au0828_buffer *buf = container_of(vbuf, 730 struct au0828_buffer, 731 vb); 732 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 733 struct au0828_dmaqueue *vidq = &dev->vidq; 734 unsigned long flags = 0; 735 736 buf->mem = vb2_plane_vaddr(vb, 0); 737 buf->length = vb2_plane_size(vb, 0); 738 739 spin_lock_irqsave(&dev->slock, flags); 740 list_add_tail(&buf->list, &vidq->active); 741 spin_unlock_irqrestore(&dev->slock, flags); 742 } 743 744 static int au0828_i2s_init(struct au0828_dev *dev) 745 { 746 /* Enable i2s mode */ 747 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01); 748 return 0; 749 } 750 751 /* 752 * Auvitek au0828 analog stream enable 753 */ 754 static int au0828_analog_stream_enable(struct au0828_dev *d) 755 { 756 struct usb_interface *iface; 757 int ret, h, w; 758 759 dprintk(1, "au0828_analog_stream_enable called\n"); 760 761 iface = usb_ifnum_to_if(d->usbdev, 0); 762 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) { 763 dprintk(1, "Changing intf#0 to alt 5\n"); 764 /* set au0828 interface0 to AS5 here again */ 765 ret = usb_set_interface(d->usbdev, 0, 5); 766 if (ret < 0) { 767 pr_info("Au0828 can't set alt setting to 5!\n"); 768 return -EBUSY; 769 } 770 } 771 772 h = d->height / 2 + 2; 773 w = d->width * 2; 774 775 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00); 776 au0828_writereg(d, 0x106, 0x00); 777 /* set x position */ 778 au0828_writereg(d, 0x110, 0x00); 779 au0828_writereg(d, 0x111, 0x00); 780 au0828_writereg(d, 0x114, w & 0xff); 781 au0828_writereg(d, 0x115, w >> 8); 782 /* set y position */ 783 au0828_writereg(d, 0x112, 0x00); 784 au0828_writereg(d, 0x113, 0x00); 785 au0828_writereg(d, 0x116, h & 0xff); 786 au0828_writereg(d, 0x117, h >> 8); 787 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3); 788 789 return 0; 790 } 791 792 static int au0828_analog_stream_disable(struct au0828_dev *d) 793 { 794 dprintk(1, "au0828_analog_stream_disable called\n"); 795 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0); 796 return 0; 797 } 798 799 static void au0828_analog_stream_reset(struct au0828_dev *dev) 800 { 801 dprintk(1, "au0828_analog_stream_reset called\n"); 802 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0); 803 mdelay(30); 804 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3); 805 } 806 807 /* 808 * Some operations needs to stop current streaming 809 */ 810 static int au0828_stream_interrupt(struct au0828_dev *dev) 811 { 812 dev->stream_state = STREAM_INTERRUPT; 813 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) 814 return -ENODEV; 815 return 0; 816 } 817 818 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count) 819 { 820 struct au0828_dev *dev = vb2_get_drv_priv(vq); 821 int rc = 0; 822 823 dprintk(1, "au0828_start_analog_streaming called %d\n", 824 dev->streaming_users); 825 826 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 827 dev->frame_count = 0; 828 else 829 dev->vbi_frame_count = 0; 830 831 if (dev->streaming_users == 0) { 832 /* If we were doing ac97 instead of i2s, it would go here...*/ 833 au0828_i2s_init(dev); 834 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB, 835 AU0828_MAX_ISO_BUFS, dev->max_pkt_size, 836 au0828_isoc_copy); 837 if (rc < 0) { 838 pr_info("au0828_init_isoc failed\n"); 839 return rc; 840 } 841 842 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 843 v4l2_device_call_all(&dev->v4l2_dev, 0, video, 844 s_stream, 1); 845 dev->vid_timeout_running = 1; 846 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 847 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 848 dev->vbi_timeout_running = 1; 849 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 850 } 851 } 852 dev->streaming_users++; 853 return rc; 854 } 855 856 static void au0828_stop_streaming(struct vb2_queue *vq) 857 { 858 struct au0828_dev *dev = vb2_get_drv_priv(vq); 859 struct au0828_dmaqueue *vidq = &dev->vidq; 860 unsigned long flags = 0; 861 862 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users); 863 864 if (dev->streaming_users-- == 1) 865 au0828_uninit_isoc(dev); 866 867 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 868 dev->vid_timeout_running = 0; 869 del_timer_sync(&dev->vid_timeout); 870 871 spin_lock_irqsave(&dev->slock, flags); 872 if (dev->isoc_ctl.buf != NULL) { 873 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf, 874 VB2_BUF_STATE_ERROR); 875 dev->isoc_ctl.buf = NULL; 876 } 877 while (!list_empty(&vidq->active)) { 878 struct au0828_buffer *buf; 879 880 buf = list_entry(vidq->active.next, struct au0828_buffer, list); 881 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 882 list_del(&buf->list); 883 } 884 spin_unlock_irqrestore(&dev->slock, flags); 885 } 886 887 void au0828_stop_vbi_streaming(struct vb2_queue *vq) 888 { 889 struct au0828_dev *dev = vb2_get_drv_priv(vq); 890 struct au0828_dmaqueue *vbiq = &dev->vbiq; 891 unsigned long flags = 0; 892 893 dprintk(1, "au0828_stop_vbi_streaming called %d\n", 894 dev->streaming_users); 895 896 if (dev->streaming_users-- == 1) 897 au0828_uninit_isoc(dev); 898 899 spin_lock_irqsave(&dev->slock, flags); 900 if (dev->isoc_ctl.vbi_buf != NULL) { 901 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf, 902 VB2_BUF_STATE_ERROR); 903 dev->isoc_ctl.vbi_buf = NULL; 904 } 905 while (!list_empty(&vbiq->active)) { 906 struct au0828_buffer *buf; 907 908 buf = list_entry(vbiq->active.next, struct au0828_buffer, list); 909 list_del(&buf->list); 910 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 911 } 912 spin_unlock_irqrestore(&dev->slock, flags); 913 914 dev->vbi_timeout_running = 0; 915 del_timer_sync(&dev->vbi_timeout); 916 } 917 918 static const struct vb2_ops au0828_video_qops = { 919 .queue_setup = queue_setup, 920 .buf_prepare = buffer_prepare, 921 .buf_queue = buffer_queue, 922 .start_streaming = au0828_start_analog_streaming, 923 .stop_streaming = au0828_stop_streaming, 924 .wait_prepare = vb2_ops_wait_prepare, 925 .wait_finish = vb2_ops_wait_finish, 926 }; 927 928 /* ------------------------------------------------------------------ 929 V4L2 interface 930 ------------------------------------------------------------------*/ 931 /* 932 * au0828_analog_unregister 933 * unregister v4l2 devices 934 */ 935 int au0828_analog_unregister(struct au0828_dev *dev) 936 { 937 dprintk(1, "au0828_analog_unregister called\n"); 938 939 /* No analog TV */ 940 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 941 return 0; 942 943 mutex_lock(&au0828_sysfs_lock); 944 video_unregister_device(&dev->vdev); 945 video_unregister_device(&dev->vbi_dev); 946 mutex_unlock(&au0828_sysfs_lock); 947 948 v4l2_device_disconnect(&dev->v4l2_dev); 949 v4l2_device_put(&dev->v4l2_dev); 950 951 return 1; 952 } 953 954 /* This function ensures that video frames continue to be delivered even if 955 the ITU-656 input isn't receiving any data (thereby preventing applications 956 such as tvtime from hanging) */ 957 static void au0828_vid_buffer_timeout(struct timer_list *t) 958 { 959 struct au0828_dev *dev = from_timer(dev, t, vid_timeout); 960 struct au0828_dmaqueue *dma_q = &dev->vidq; 961 struct au0828_buffer *buf; 962 unsigned char *vid_data; 963 unsigned long flags = 0; 964 965 spin_lock_irqsave(&dev->slock, flags); 966 967 buf = dev->isoc_ctl.buf; 968 if (buf != NULL) { 969 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 970 memset(vid_data, 0x00, buf->length); /* Blank green frame */ 971 buffer_filled(dev, dma_q, buf); 972 } 973 get_next_buf(dma_q, &buf); 974 975 if (dev->vid_timeout_running == 1) 976 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 977 978 spin_unlock_irqrestore(&dev->slock, flags); 979 } 980 981 static void au0828_vbi_buffer_timeout(struct timer_list *t) 982 { 983 struct au0828_dev *dev = from_timer(dev, t, vbi_timeout); 984 struct au0828_dmaqueue *dma_q = &dev->vbiq; 985 struct au0828_buffer *buf; 986 unsigned char *vbi_data; 987 unsigned long flags = 0; 988 989 spin_lock_irqsave(&dev->slock, flags); 990 991 buf = dev->isoc_ctl.vbi_buf; 992 if (buf != NULL) { 993 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 994 memset(vbi_data, 0x00, buf->length); 995 buffer_filled(dev, dma_q, buf); 996 } 997 vbi_get_next_buf(dma_q, &buf); 998 999 if (dev->vbi_timeout_running == 1) 1000 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1001 spin_unlock_irqrestore(&dev->slock, flags); 1002 } 1003 1004 static int au0828_v4l2_open(struct file *filp) 1005 { 1006 struct au0828_dev *dev = video_drvdata(filp); 1007 int ret; 1008 1009 dprintk(1, 1010 "%s called std_set %d dev_state %ld stream users %d users %d\n", 1011 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1012 dev->streaming_users, dev->users); 1013 1014 if (mutex_lock_interruptible(&dev->lock)) 1015 return -ERESTARTSYS; 1016 1017 ret = v4l2_fh_open(filp); 1018 if (ret) { 1019 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n", 1020 __func__, ret); 1021 mutex_unlock(&dev->lock); 1022 return ret; 1023 } 1024 1025 if (dev->users == 0) { 1026 au0828_analog_stream_enable(dev); 1027 au0828_analog_stream_reset(dev); 1028 dev->stream_state = STREAM_OFF; 1029 set_bit(DEV_INITIALIZED, &dev->dev_state); 1030 } 1031 dev->users++; 1032 mutex_unlock(&dev->lock); 1033 return ret; 1034 } 1035 1036 static int au0828_v4l2_close(struct file *filp) 1037 { 1038 int ret; 1039 struct au0828_dev *dev = video_drvdata(filp); 1040 struct video_device *vdev = video_devdata(filp); 1041 1042 dprintk(1, 1043 "%s called std_set %d dev_state %ld stream users %d users %d\n", 1044 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1045 dev->streaming_users, dev->users); 1046 1047 mutex_lock(&dev->lock); 1048 if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) { 1049 /* Cancel timeout thread in case they didn't call streamoff */ 1050 dev->vid_timeout_running = 0; 1051 del_timer_sync(&dev->vid_timeout); 1052 } else if (vdev->vfl_type == VFL_TYPE_VBI && 1053 dev->vbi_timeout_running) { 1054 /* Cancel timeout thread in case they didn't call streamoff */ 1055 dev->vbi_timeout_running = 0; 1056 del_timer_sync(&dev->vbi_timeout); 1057 } 1058 1059 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) 1060 goto end; 1061 1062 if (dev->users == 1) { 1063 /* 1064 * Avoid putting tuner in sleep if DVB or ALSA are 1065 * streaming. 1066 * 1067 * On most USB devices like au0828 the tuner can 1068 * be safely put in sleep stare here if ALSA isn't 1069 * streaming. Exceptions are some very old USB tuner 1070 * models such as em28xx-based WinTV USB2 which have 1071 * a separate audio output jack. The devices that have 1072 * a separate audio output jack have analog tuners, 1073 * like Philips FM1236. Those devices are always on, 1074 * so the s_power callback are silently ignored. 1075 * So, the current logic here does the following: 1076 * Disable (put tuner to sleep) when 1077 * - ALSA and DVB aren't not streaming; 1078 * - the last V4L2 file handler is closed. 1079 * 1080 * FIXME: 1081 * 1082 * Additionally, this logic could be improved to 1083 * disable the media source if the above conditions 1084 * are met and if the device: 1085 * - doesn't have a separate audio out plug (or 1086 * - doesn't use a silicon tuner like xc2028/3028/4000/5000). 1087 * 1088 * Once this additional logic is in place, a callback 1089 * is needed to enable the media source and power on 1090 * the tuner, for radio to work. 1091 */ 1092 ret = v4l_enable_media_source(vdev); 1093 if (ret == 0) 1094 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, 1095 standby); 1096 dev->std_set_in_tuner_core = 0; 1097 1098 /* When close the device, set the usb intf0 into alt0 to free 1099 USB bandwidth */ 1100 ret = usb_set_interface(dev->usbdev, 0, 0); 1101 if (ret < 0) 1102 pr_info("Au0828 can't set alternate to 0!\n"); 1103 } 1104 end: 1105 _vb2_fop_release(filp, NULL); 1106 dev->users--; 1107 mutex_unlock(&dev->lock); 1108 return 0; 1109 } 1110 1111 /* Must be called with dev->lock held */ 1112 static void au0828_init_tuner(struct au0828_dev *dev) 1113 { 1114 struct v4l2_frequency f = { 1115 .frequency = dev->ctrl_freq, 1116 .type = V4L2_TUNER_ANALOG_TV, 1117 }; 1118 1119 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1120 dev->std_set_in_tuner_core, dev->dev_state); 1121 1122 if (dev->std_set_in_tuner_core) 1123 return; 1124 dev->std_set_in_tuner_core = 1; 1125 i2c_gate_ctrl(dev, 1); 1126 /* If we've never sent the standard in tuner core, do so now. 1127 We don't do this at device probe because we don't want to 1128 incur the cost of a firmware load */ 1129 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std); 1130 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 1131 i2c_gate_ctrl(dev, 0); 1132 } 1133 1134 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd, 1135 struct v4l2_format *format) 1136 { 1137 int ret; 1138 int width = format->fmt.pix.width; 1139 int height = format->fmt.pix.height; 1140 1141 /* If they are demanding a format other than the one we support, 1142 bail out (tvtime asks for UYVY and then retries with YUYV) */ 1143 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY) 1144 return -EINVAL; 1145 1146 /* format->fmt.pix.width only support 720 and height 480 */ 1147 if (width != 720) 1148 width = 720; 1149 if (height != 480) 1150 height = 480; 1151 1152 format->fmt.pix.width = width; 1153 format->fmt.pix.height = height; 1154 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1155 format->fmt.pix.bytesperline = width * 2; 1156 format->fmt.pix.sizeimage = width * height * 2; 1157 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1158 format->fmt.pix.field = V4L2_FIELD_INTERLACED; 1159 format->fmt.pix.priv = 0; 1160 1161 if (cmd == VIDIOC_TRY_FMT) 1162 return 0; 1163 1164 /* maybe set new image format, driver current only support 720*480 */ 1165 dev->width = width; 1166 dev->height = height; 1167 dev->frame_size = width * height * 2; 1168 dev->field_size = width * height; 1169 dev->bytesperline = width * 2; 1170 1171 if (dev->stream_state == STREAM_ON) { 1172 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n"); 1173 ret = au0828_stream_interrupt(dev); 1174 if (ret != 0) { 1175 dprintk(1, "error interrupting video stream!\n"); 1176 return ret; 1177 } 1178 } 1179 1180 au0828_analog_stream_enable(dev); 1181 1182 return 0; 1183 } 1184 1185 static int vidioc_querycap(struct file *file, void *priv, 1186 struct v4l2_capability *cap) 1187 { 1188 struct video_device *vdev = video_devdata(file); 1189 struct au0828_dev *dev = video_drvdata(file); 1190 1191 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1192 dev->std_set_in_tuner_core, dev->dev_state); 1193 1194 strlcpy(cap->driver, "au0828", sizeof(cap->driver)); 1195 strlcpy(cap->card, dev->board.name, sizeof(cap->card)); 1196 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info)); 1197 1198 /* set the device capabilities */ 1199 cap->device_caps = V4L2_CAP_AUDIO | 1200 V4L2_CAP_READWRITE | 1201 V4L2_CAP_STREAMING | 1202 V4L2_CAP_TUNER; 1203 if (vdev->vfl_type == VFL_TYPE_GRABBER) 1204 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE; 1205 else 1206 cap->device_caps |= V4L2_CAP_VBI_CAPTURE; 1207 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS | 1208 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE; 1209 return 0; 1210 } 1211 1212 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1213 struct v4l2_fmtdesc *f) 1214 { 1215 if (f->index) 1216 return -EINVAL; 1217 1218 dprintk(1, "%s called\n", __func__); 1219 1220 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1221 strcpy(f->description, "Packed YUV2"); 1222 1223 f->flags = 0; 1224 f->pixelformat = V4L2_PIX_FMT_UYVY; 1225 1226 return 0; 1227 } 1228 1229 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 1230 struct v4l2_format *f) 1231 { 1232 struct au0828_dev *dev = video_drvdata(file); 1233 1234 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1235 dev->std_set_in_tuner_core, dev->dev_state); 1236 1237 f->fmt.pix.width = dev->width; 1238 f->fmt.pix.height = dev->height; 1239 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1240 f->fmt.pix.bytesperline = dev->bytesperline; 1241 f->fmt.pix.sizeimage = dev->frame_size; 1242 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */ 1243 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 1244 f->fmt.pix.priv = 0; 1245 return 0; 1246 } 1247 1248 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 1249 struct v4l2_format *f) 1250 { 1251 struct au0828_dev *dev = video_drvdata(file); 1252 1253 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1254 dev->std_set_in_tuner_core, dev->dev_state); 1255 1256 return au0828_set_format(dev, VIDIOC_TRY_FMT, f); 1257 } 1258 1259 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1260 struct v4l2_format *f) 1261 { 1262 struct au0828_dev *dev = video_drvdata(file); 1263 int rc; 1264 1265 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1266 dev->std_set_in_tuner_core, dev->dev_state); 1267 1268 rc = check_dev(dev); 1269 if (rc < 0) 1270 return rc; 1271 1272 if (vb2_is_busy(&dev->vb_vidq)) { 1273 pr_info("%s queue busy\n", __func__); 1274 rc = -EBUSY; 1275 goto out; 1276 } 1277 1278 rc = au0828_set_format(dev, VIDIOC_S_FMT, f); 1279 out: 1280 return rc; 1281 } 1282 1283 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) 1284 { 1285 struct au0828_dev *dev = video_drvdata(file); 1286 1287 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1288 dev->std_set_in_tuner_core, dev->dev_state); 1289 1290 if (norm == dev->std) 1291 return 0; 1292 1293 if (dev->streaming_users > 0) 1294 return -EBUSY; 1295 1296 dev->std = norm; 1297 1298 au0828_init_tuner(dev); 1299 1300 i2c_gate_ctrl(dev, 1); 1301 1302 /* 1303 * FIXME: when we support something other than 60Hz standards, 1304 * we are going to have to make the au0828 bridge adjust the size 1305 * of its capture buffer, which is currently hardcoded at 720x480 1306 */ 1307 1308 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm); 1309 1310 i2c_gate_ctrl(dev, 0); 1311 1312 return 0; 1313 } 1314 1315 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) 1316 { 1317 struct au0828_dev *dev = video_drvdata(file); 1318 1319 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1320 dev->std_set_in_tuner_core, dev->dev_state); 1321 1322 *norm = dev->std; 1323 return 0; 1324 } 1325 1326 static int vidioc_enum_input(struct file *file, void *priv, 1327 struct v4l2_input *input) 1328 { 1329 struct au0828_dev *dev = video_drvdata(file); 1330 unsigned int tmp; 1331 1332 static const char *inames[] = { 1333 [AU0828_VMUX_UNDEFINED] = "Undefined", 1334 [AU0828_VMUX_COMPOSITE] = "Composite", 1335 [AU0828_VMUX_SVIDEO] = "S-Video", 1336 [AU0828_VMUX_CABLE] = "Cable TV", 1337 [AU0828_VMUX_TELEVISION] = "Television", 1338 [AU0828_VMUX_DVB] = "DVB", 1339 }; 1340 1341 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1342 dev->std_set_in_tuner_core, dev->dev_state); 1343 1344 tmp = input->index; 1345 1346 if (tmp >= AU0828_MAX_INPUT) 1347 return -EINVAL; 1348 if (AUVI_INPUT(tmp).type == 0) 1349 return -EINVAL; 1350 1351 input->index = tmp; 1352 strcpy(input->name, inames[AUVI_INPUT(tmp).type]); 1353 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) || 1354 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) { 1355 input->type |= V4L2_INPUT_TYPE_TUNER; 1356 input->audioset = 1; 1357 } else { 1358 input->type |= V4L2_INPUT_TYPE_CAMERA; 1359 input->audioset = 2; 1360 } 1361 1362 input->std = dev->vdev.tvnorms; 1363 1364 return 0; 1365 } 1366 1367 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1368 { 1369 struct au0828_dev *dev = video_drvdata(file); 1370 1371 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1372 dev->std_set_in_tuner_core, dev->dev_state); 1373 1374 *i = dev->ctrl_input; 1375 return 0; 1376 } 1377 1378 static void au0828_s_input(struct au0828_dev *dev, int index) 1379 { 1380 int i; 1381 1382 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1383 dev->std_set_in_tuner_core, dev->dev_state); 1384 1385 switch (AUVI_INPUT(index).type) { 1386 case AU0828_VMUX_SVIDEO: 1387 dev->input_type = AU0828_VMUX_SVIDEO; 1388 dev->ctrl_ainput = 1; 1389 break; 1390 case AU0828_VMUX_COMPOSITE: 1391 dev->input_type = AU0828_VMUX_COMPOSITE; 1392 dev->ctrl_ainput = 1; 1393 break; 1394 case AU0828_VMUX_TELEVISION: 1395 dev->input_type = AU0828_VMUX_TELEVISION; 1396 dev->ctrl_ainput = 0; 1397 break; 1398 default: 1399 dprintk(1, "unknown input type set [%d]\n", 1400 AUVI_INPUT(index).type); 1401 return; 1402 } 1403 1404 dev->ctrl_input = index; 1405 1406 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 1407 AUVI_INPUT(index).vmux, 0, 0); 1408 1409 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1410 int enable = 0; 1411 if (AUVI_INPUT(i).audio_setup == NULL) 1412 continue; 1413 1414 if (i == index) 1415 enable = 1; 1416 else 1417 enable = 0; 1418 if (enable) { 1419 (AUVI_INPUT(i).audio_setup)(dev, enable); 1420 } else { 1421 /* Make sure we leave it turned on if some 1422 other input is routed to this callback */ 1423 if ((AUVI_INPUT(i).audio_setup) != 1424 ((AUVI_INPUT(index).audio_setup))) { 1425 (AUVI_INPUT(i).audio_setup)(dev, enable); 1426 } 1427 } 1428 } 1429 1430 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 1431 AUVI_INPUT(index).amux, 0, 0); 1432 } 1433 1434 static int vidioc_s_input(struct file *file, void *priv, unsigned int index) 1435 { 1436 struct au0828_dev *dev = video_drvdata(file); 1437 struct video_device *vfd = video_devdata(file); 1438 1439 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__, 1440 index); 1441 if (index >= AU0828_MAX_INPUT) 1442 return -EINVAL; 1443 if (AUVI_INPUT(index).type == 0) 1444 return -EINVAL; 1445 1446 if (dev->ctrl_input == index) 1447 return 0; 1448 1449 au0828_s_input(dev, index); 1450 1451 /* 1452 * Input has been changed. Disable the media source 1453 * associated with the old input and enable source 1454 * for the newly set input 1455 */ 1456 v4l_disable_media_source(vfd); 1457 return v4l_enable_media_source(vfd); 1458 } 1459 1460 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a) 1461 { 1462 if (a->index > 1) 1463 return -EINVAL; 1464 1465 dprintk(1, "%s called\n", __func__); 1466 1467 if (a->index == 0) 1468 strcpy(a->name, "Television"); 1469 else 1470 strcpy(a->name, "Line in"); 1471 1472 a->capability = V4L2_AUDCAP_STEREO; 1473 return 0; 1474 } 1475 1476 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 1477 { 1478 struct au0828_dev *dev = video_drvdata(file); 1479 1480 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1481 dev->std_set_in_tuner_core, dev->dev_state); 1482 1483 a->index = dev->ctrl_ainput; 1484 if (a->index == 0) 1485 strcpy(a->name, "Television"); 1486 else 1487 strcpy(a->name, "Line in"); 1488 1489 a->capability = V4L2_AUDCAP_STEREO; 1490 return 0; 1491 } 1492 1493 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 1494 { 1495 struct au0828_dev *dev = video_drvdata(file); 1496 1497 if (a->index != dev->ctrl_ainput) 1498 return -EINVAL; 1499 1500 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1501 dev->std_set_in_tuner_core, dev->dev_state); 1502 return 0; 1503 } 1504 1505 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1506 { 1507 struct au0828_dev *dev = video_drvdata(file); 1508 struct video_device *vfd = video_devdata(file); 1509 int ret; 1510 1511 if (t->index != 0) 1512 return -EINVAL; 1513 1514 ret = v4l_enable_media_source(vfd); 1515 if (ret) 1516 return ret; 1517 1518 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1519 dev->std_set_in_tuner_core, dev->dev_state); 1520 1521 strcpy(t->name, "Auvitek tuner"); 1522 1523 au0828_init_tuner(dev); 1524 i2c_gate_ctrl(dev, 1); 1525 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 1526 i2c_gate_ctrl(dev, 0); 1527 return 0; 1528 } 1529 1530 static int vidioc_s_tuner(struct file *file, void *priv, 1531 const struct v4l2_tuner *t) 1532 { 1533 struct au0828_dev *dev = video_drvdata(file); 1534 1535 if (t->index != 0) 1536 return -EINVAL; 1537 1538 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1539 dev->std_set_in_tuner_core, dev->dev_state); 1540 1541 au0828_init_tuner(dev); 1542 i2c_gate_ctrl(dev, 1); 1543 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 1544 i2c_gate_ctrl(dev, 0); 1545 1546 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal, 1547 t->afc); 1548 1549 return 0; 1550 1551 } 1552 1553 static int vidioc_g_frequency(struct file *file, void *priv, 1554 struct v4l2_frequency *freq) 1555 { 1556 struct au0828_dev *dev = video_drvdata(file); 1557 1558 if (freq->tuner != 0) 1559 return -EINVAL; 1560 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1561 dev->std_set_in_tuner_core, dev->dev_state); 1562 freq->frequency = dev->ctrl_freq; 1563 return 0; 1564 } 1565 1566 static int vidioc_s_frequency(struct file *file, void *priv, 1567 const struct v4l2_frequency *freq) 1568 { 1569 struct au0828_dev *dev = video_drvdata(file); 1570 struct v4l2_frequency new_freq = *freq; 1571 1572 if (freq->tuner != 0) 1573 return -EINVAL; 1574 1575 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1576 dev->std_set_in_tuner_core, dev->dev_state); 1577 1578 au0828_init_tuner(dev); 1579 i2c_gate_ctrl(dev, 1); 1580 1581 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq); 1582 /* Get the actual set (and possibly clamped) frequency */ 1583 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq); 1584 dev->ctrl_freq = new_freq.frequency; 1585 1586 i2c_gate_ctrl(dev, 0); 1587 1588 au0828_analog_stream_reset(dev); 1589 1590 return 0; 1591 } 1592 1593 1594 /* RAW VBI ioctls */ 1595 1596 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 1597 struct v4l2_format *format) 1598 { 1599 struct au0828_dev *dev = video_drvdata(file); 1600 1601 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1602 dev->std_set_in_tuner_core, dev->dev_state); 1603 1604 format->fmt.vbi.samples_per_line = dev->vbi_width; 1605 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1606 format->fmt.vbi.offset = 0; 1607 format->fmt.vbi.flags = 0; 1608 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 1609 1610 format->fmt.vbi.count[0] = dev->vbi_height; 1611 format->fmt.vbi.count[1] = dev->vbi_height; 1612 format->fmt.vbi.start[0] = 21; 1613 format->fmt.vbi.start[1] = 284; 1614 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved)); 1615 1616 return 0; 1617 } 1618 1619 static int vidioc_cropcap(struct file *file, void *priv, 1620 struct v4l2_cropcap *cc) 1621 { 1622 struct au0828_dev *dev = video_drvdata(file); 1623 1624 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1625 return -EINVAL; 1626 1627 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1628 dev->std_set_in_tuner_core, dev->dev_state); 1629 1630 cc->bounds.left = 0; 1631 cc->bounds.top = 0; 1632 cc->bounds.width = dev->width; 1633 cc->bounds.height = dev->height; 1634 1635 cc->defrect = cc->bounds; 1636 1637 cc->pixelaspect.numerator = 54; 1638 cc->pixelaspect.denominator = 59; 1639 1640 return 0; 1641 } 1642 1643 #ifdef CONFIG_VIDEO_ADV_DEBUG 1644 static int vidioc_g_register(struct file *file, void *priv, 1645 struct v4l2_dbg_register *reg) 1646 { 1647 struct au0828_dev *dev = video_drvdata(file); 1648 1649 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1650 dev->std_set_in_tuner_core, dev->dev_state); 1651 1652 reg->val = au0828_read(dev, reg->reg); 1653 reg->size = 1; 1654 return 0; 1655 } 1656 1657 static int vidioc_s_register(struct file *file, void *priv, 1658 const struct v4l2_dbg_register *reg) 1659 { 1660 struct au0828_dev *dev = video_drvdata(file); 1661 1662 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1663 dev->std_set_in_tuner_core, dev->dev_state); 1664 1665 return au0828_writereg(dev, reg->reg, reg->val); 1666 } 1667 #endif 1668 1669 static int vidioc_log_status(struct file *file, void *fh) 1670 { 1671 struct video_device *vdev = video_devdata(file); 1672 1673 dprintk(1, "%s called\n", __func__); 1674 1675 v4l2_ctrl_log_status(file, fh); 1676 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status); 1677 return 0; 1678 } 1679 1680 void au0828_v4l2_suspend(struct au0828_dev *dev) 1681 { 1682 struct urb *urb; 1683 int i; 1684 1685 pr_info("stopping V4L2\n"); 1686 1687 if (dev->stream_state == STREAM_ON) { 1688 pr_info("stopping V4L2 active URBs\n"); 1689 au0828_analog_stream_disable(dev); 1690 /* stop urbs */ 1691 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1692 urb = dev->isoc_ctl.urb[i]; 1693 if (urb) { 1694 if (!irqs_disabled()) 1695 usb_kill_urb(urb); 1696 else 1697 usb_unlink_urb(urb); 1698 } 1699 } 1700 } 1701 1702 if (dev->vid_timeout_running) 1703 del_timer_sync(&dev->vid_timeout); 1704 if (dev->vbi_timeout_running) 1705 del_timer_sync(&dev->vbi_timeout); 1706 } 1707 1708 void au0828_v4l2_resume(struct au0828_dev *dev) 1709 { 1710 int i, rc; 1711 1712 pr_info("restarting V4L2\n"); 1713 1714 if (dev->stream_state == STREAM_ON) { 1715 au0828_stream_interrupt(dev); 1716 au0828_init_tuner(dev); 1717 } 1718 1719 if (dev->vid_timeout_running) 1720 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 1721 if (dev->vbi_timeout_running) 1722 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1723 1724 /* If we were doing ac97 instead of i2s, it would go here...*/ 1725 au0828_i2s_init(dev); 1726 1727 au0828_analog_stream_enable(dev); 1728 1729 if (!(dev->stream_state == STREAM_ON)) { 1730 au0828_analog_stream_reset(dev); 1731 /* submit urbs */ 1732 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1733 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 1734 if (rc) { 1735 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 1736 i, rc); 1737 au0828_uninit_isoc(dev); 1738 } 1739 } 1740 } 1741 } 1742 1743 static const struct v4l2_file_operations au0828_v4l_fops = { 1744 .owner = THIS_MODULE, 1745 .open = au0828_v4l2_open, 1746 .release = au0828_v4l2_close, 1747 .read = vb2_fop_read, 1748 .poll = vb2_fop_poll, 1749 .mmap = vb2_fop_mmap, 1750 .unlocked_ioctl = video_ioctl2, 1751 }; 1752 1753 static const struct v4l2_ioctl_ops video_ioctl_ops = { 1754 .vidioc_querycap = vidioc_querycap, 1755 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1756 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1757 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1758 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1759 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1760 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1761 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1762 .vidioc_enumaudio = vidioc_enumaudio, 1763 .vidioc_g_audio = vidioc_g_audio, 1764 .vidioc_s_audio = vidioc_s_audio, 1765 .vidioc_cropcap = vidioc_cropcap, 1766 1767 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1768 .vidioc_create_bufs = vb2_ioctl_create_bufs, 1769 .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 1770 .vidioc_querybuf = vb2_ioctl_querybuf, 1771 .vidioc_qbuf = vb2_ioctl_qbuf, 1772 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1773 .vidioc_expbuf = vb2_ioctl_expbuf, 1774 1775 .vidioc_s_std = vidioc_s_std, 1776 .vidioc_g_std = vidioc_g_std, 1777 .vidioc_enum_input = vidioc_enum_input, 1778 .vidioc_g_input = vidioc_g_input, 1779 .vidioc_s_input = vidioc_s_input, 1780 1781 .vidioc_streamon = vb2_ioctl_streamon, 1782 .vidioc_streamoff = vb2_ioctl_streamoff, 1783 1784 .vidioc_g_tuner = vidioc_g_tuner, 1785 .vidioc_s_tuner = vidioc_s_tuner, 1786 .vidioc_g_frequency = vidioc_g_frequency, 1787 .vidioc_s_frequency = vidioc_s_frequency, 1788 #ifdef CONFIG_VIDEO_ADV_DEBUG 1789 .vidioc_g_register = vidioc_g_register, 1790 .vidioc_s_register = vidioc_s_register, 1791 #endif 1792 .vidioc_log_status = vidioc_log_status, 1793 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1794 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1795 }; 1796 1797 static const struct video_device au0828_video_template = { 1798 .fops = &au0828_v4l_fops, 1799 .release = video_device_release_empty, 1800 .ioctl_ops = &video_ioctl_ops, 1801 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M, 1802 }; 1803 1804 static int au0828_vb2_setup(struct au0828_dev *dev) 1805 { 1806 int rc; 1807 struct vb2_queue *q; 1808 1809 /* Setup Videobuf2 for Video capture */ 1810 q = &dev->vb_vidq; 1811 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1812 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1813 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1814 q->drv_priv = dev; 1815 q->buf_struct_size = sizeof(struct au0828_buffer); 1816 q->ops = &au0828_video_qops; 1817 q->mem_ops = &vb2_vmalloc_memops; 1818 1819 rc = vb2_queue_init(q); 1820 if (rc < 0) 1821 return rc; 1822 1823 /* Setup Videobuf2 for VBI capture */ 1824 q = &dev->vb_vbiq; 1825 q->type = V4L2_BUF_TYPE_VBI_CAPTURE; 1826 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1827 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1828 q->drv_priv = dev; 1829 q->buf_struct_size = sizeof(struct au0828_buffer); 1830 q->ops = &au0828_vbi_qops; 1831 q->mem_ops = &vb2_vmalloc_memops; 1832 1833 rc = vb2_queue_init(q); 1834 if (rc < 0) 1835 return rc; 1836 1837 return 0; 1838 } 1839 1840 static void au0828_analog_create_entities(struct au0828_dev *dev) 1841 { 1842 #if defined(CONFIG_MEDIA_CONTROLLER) 1843 static const char * const inames[] = { 1844 [AU0828_VMUX_COMPOSITE] = "Composite", 1845 [AU0828_VMUX_SVIDEO] = "S-Video", 1846 [AU0828_VMUX_CABLE] = "Cable TV", 1847 [AU0828_VMUX_TELEVISION] = "Television", 1848 [AU0828_VMUX_DVB] = "DVB", 1849 }; 1850 int ret, i; 1851 1852 /* Initialize Video and VBI pads */ 1853 dev->video_pad.flags = MEDIA_PAD_FL_SINK; 1854 ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad); 1855 if (ret < 0) 1856 pr_err("failed to initialize video media entity!\n"); 1857 1858 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK; 1859 ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad); 1860 if (ret < 0) 1861 pr_err("failed to initialize vbi media entity!\n"); 1862 1863 /* Create entities for each input connector */ 1864 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1865 struct media_entity *ent = &dev->input_ent[i]; 1866 1867 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) 1868 break; 1869 1870 ent->name = inames[AUVI_INPUT(i).type]; 1871 ent->flags = MEDIA_ENT_FL_CONNECTOR; 1872 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE; 1873 1874 switch (AUVI_INPUT(i).type) { 1875 case AU0828_VMUX_COMPOSITE: 1876 ent->function = MEDIA_ENT_F_CONN_COMPOSITE; 1877 break; 1878 case AU0828_VMUX_SVIDEO: 1879 ent->function = MEDIA_ENT_F_CONN_SVIDEO; 1880 break; 1881 case AU0828_VMUX_CABLE: 1882 case AU0828_VMUX_TELEVISION: 1883 case AU0828_VMUX_DVB: 1884 default: /* Just to shut up a warning */ 1885 ent->function = MEDIA_ENT_F_CONN_RF; 1886 break; 1887 } 1888 1889 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]); 1890 if (ret < 0) 1891 pr_err("failed to initialize input pad[%d]!\n", i); 1892 1893 ret = media_device_register_entity(dev->media_dev, ent); 1894 if (ret < 0) 1895 pr_err("failed to register input entity %d!\n", i); 1896 } 1897 #endif 1898 } 1899 1900 /**************************************************************************/ 1901 1902 int au0828_analog_register(struct au0828_dev *dev, 1903 struct usb_interface *interface) 1904 { 1905 int retval = -ENOMEM; 1906 struct usb_host_interface *iface_desc; 1907 struct usb_endpoint_descriptor *endpoint; 1908 int i, ret; 1909 1910 dprintk(1, "au0828_analog_register called for intf#%d!\n", 1911 interface->cur_altsetting->desc.bInterfaceNumber); 1912 1913 /* No analog TV */ 1914 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 1915 return 0; 1916 1917 /* set au0828 usb interface0 to as5 */ 1918 retval = usb_set_interface(dev->usbdev, 1919 interface->cur_altsetting->desc.bInterfaceNumber, 5); 1920 if (retval != 0) { 1921 pr_info("Failure setting usb interface0 to as5\n"); 1922 return retval; 1923 } 1924 1925 /* Figure out which endpoint has the isoc interface */ 1926 iface_desc = interface->cur_altsetting; 1927 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { 1928 endpoint = &iface_desc->endpoint[i].desc; 1929 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1930 == USB_DIR_IN) && 1931 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1932 == USB_ENDPOINT_XFER_ISOC)) { 1933 1934 /* we find our isoc in endpoint */ 1935 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize); 1936 dev->max_pkt_size = (tmp & 0x07ff) * 1937 (((tmp & 0x1800) >> 11) + 1); 1938 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress; 1939 dprintk(1, 1940 "Found isoc endpoint 0x%02x, max size = %d\n", 1941 dev->isoc_in_endpointaddr, dev->max_pkt_size); 1942 } 1943 } 1944 if (!(dev->isoc_in_endpointaddr)) { 1945 pr_info("Could not locate isoc endpoint\n"); 1946 return -ENODEV; 1947 } 1948 1949 init_waitqueue_head(&dev->open); 1950 spin_lock_init(&dev->slock); 1951 1952 /* init video dma queues */ 1953 INIT_LIST_HEAD(&dev->vidq.active); 1954 INIT_LIST_HEAD(&dev->vbiq.active); 1955 1956 timer_setup(&dev->vid_timeout, au0828_vid_buffer_timeout, 0); 1957 timer_setup(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 0); 1958 1959 dev->width = NTSC_STD_W; 1960 dev->height = NTSC_STD_H; 1961 dev->field_size = dev->width * dev->height; 1962 dev->frame_size = dev->field_size << 1; 1963 dev->bytesperline = dev->width << 1; 1964 dev->vbi_width = 720; 1965 dev->vbi_height = 1; 1966 dev->ctrl_ainput = 0; 1967 dev->ctrl_freq = 960; 1968 dev->std = V4L2_STD_NTSC_M; 1969 /* Default input is TV Tuner */ 1970 au0828_s_input(dev, 0); 1971 1972 mutex_init(&dev->vb_queue_lock); 1973 mutex_init(&dev->vb_vbi_queue_lock); 1974 1975 /* Fill the video capture device struct */ 1976 dev->vdev = au0828_video_template; 1977 dev->vdev.v4l2_dev = &dev->v4l2_dev; 1978 dev->vdev.lock = &dev->lock; 1979 dev->vdev.queue = &dev->vb_vidq; 1980 dev->vdev.queue->lock = &dev->vb_queue_lock; 1981 strcpy(dev->vdev.name, "au0828a video"); 1982 1983 /* Setup the VBI device */ 1984 dev->vbi_dev = au0828_video_template; 1985 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev; 1986 dev->vbi_dev.lock = &dev->lock; 1987 dev->vbi_dev.queue = &dev->vb_vbiq; 1988 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock; 1989 strcpy(dev->vbi_dev.name, "au0828a vbi"); 1990 1991 /* Init entities at the Media Controller */ 1992 au0828_analog_create_entities(dev); 1993 1994 /* initialize videobuf2 stuff */ 1995 retval = au0828_vb2_setup(dev); 1996 if (retval != 0) { 1997 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n", 1998 retval); 1999 return -ENODEV; 2000 } 2001 2002 /* Register the v4l2 device */ 2003 video_set_drvdata(&dev->vdev, dev); 2004 retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1); 2005 if (retval != 0) { 2006 dprintk(1, "unable to register video device (error = %d).\n", 2007 retval); 2008 ret = -ENODEV; 2009 goto err_reg_vdev; 2010 } 2011 2012 /* Register the vbi device */ 2013 video_set_drvdata(&dev->vbi_dev, dev); 2014 retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1); 2015 if (retval != 0) { 2016 dprintk(1, "unable to register vbi device (error = %d).\n", 2017 retval); 2018 ret = -ENODEV; 2019 goto err_reg_vbi_dev; 2020 } 2021 2022 #ifdef CONFIG_MEDIA_CONTROLLER 2023 retval = v4l2_mc_create_media_graph(dev->media_dev); 2024 if (retval) { 2025 pr_err("%s() au0282_dev_register failed to create graph\n", 2026 __func__); 2027 ret = -ENODEV; 2028 goto err_reg_vbi_dev; 2029 } 2030 #endif 2031 2032 dprintk(1, "%s completed!\n", __func__); 2033 2034 return 0; 2035 2036 err_reg_vbi_dev: 2037 video_unregister_device(&dev->vdev); 2038 err_reg_vdev: 2039 vb2_queue_release(&dev->vb_vidq); 2040 vb2_queue_release(&dev->vb_vbiq); 2041 return ret; 2042 } 2043 2044