1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Auvitek AU0828 USB Bridge (Analog video support) 4 * 5 * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org> 6 * Copyright (C) 2005-2008 Auvitek International, Ltd. 7 */ 8 9 /* Developer Notes: 10 * 11 * The hardware scaler supported is unimplemented 12 * AC97 audio support is unimplemented (only i2s audio mode) 13 * 14 */ 15 16 #include "au0828.h" 17 #include "au8522.h" 18 19 #include <linux/module.h> 20 #include <linux/slab.h> 21 #include <linux/init.h> 22 #include <linux/device.h> 23 #include <media/v4l2-common.h> 24 #include <media/v4l2-mc.h> 25 #include <media/v4l2-ioctl.h> 26 #include <media/v4l2-event.h> 27 #include <media/tuner.h> 28 #include "au0828-reg.h" 29 30 static DEFINE_MUTEX(au0828_sysfs_lock); 31 32 /* ------------------------------------------------------------------ 33 Videobuf operations 34 ------------------------------------------------------------------*/ 35 36 static unsigned int isoc_debug; 37 module_param(isoc_debug, int, 0644); 38 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); 39 40 #define au0828_isocdbg(fmt, arg...) \ 41 do {\ 42 if (isoc_debug) { \ 43 pr_info("au0828 %s :"fmt, \ 44 __func__ , ##arg); \ 45 } \ 46 } while (0) 47 48 static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val) 49 { 50 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl) 51 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val); 52 } 53 54 static inline void print_err_status(struct au0828_dev *dev, 55 int packet, int status) 56 { 57 char *errmsg = "Unknown"; 58 59 switch (status) { 60 case -ENOENT: 61 errmsg = "unlinked synchronously"; 62 break; 63 case -ECONNRESET: 64 errmsg = "unlinked asynchronously"; 65 break; 66 case -ENOSR: 67 errmsg = "Buffer error (overrun)"; 68 break; 69 case -EPIPE: 70 errmsg = "Stalled (device not responding)"; 71 break; 72 case -EOVERFLOW: 73 errmsg = "Babble (bad cable?)"; 74 break; 75 case -EPROTO: 76 errmsg = "Bit-stuff error (bad cable?)"; 77 break; 78 case -EILSEQ: 79 errmsg = "CRC/Timeout (could be anything)"; 80 break; 81 case -ETIME: 82 errmsg = "Device does not respond"; 83 break; 84 } 85 if (packet < 0) { 86 au0828_isocdbg("URB status %d [%s].\n", status, errmsg); 87 } else { 88 au0828_isocdbg("URB packet %d, status %d [%s].\n", 89 packet, status, errmsg); 90 } 91 } 92 93 static int check_dev(struct au0828_dev *dev) 94 { 95 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) { 96 pr_info("v4l2 ioctl: device not present\n"); 97 return -ENODEV; 98 } 99 100 if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) { 101 pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n"); 102 return -EIO; 103 } 104 return 0; 105 } 106 107 /* 108 * IRQ callback, called by URB callback 109 */ 110 static void au0828_irq_callback(struct urb *urb) 111 { 112 struct au0828_dmaqueue *dma_q = urb->context; 113 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 114 unsigned long flags = 0; 115 int i; 116 117 switch (urb->status) { 118 case 0: /* success */ 119 case -ETIMEDOUT: /* NAK */ 120 break; 121 case -ECONNRESET: /* kill */ 122 case -ENOENT: 123 case -ESHUTDOWN: 124 au0828_isocdbg("au0828_irq_callback called: status kill\n"); 125 return; 126 default: /* unknown error */ 127 au0828_isocdbg("urb completion error %d.\n", urb->status); 128 break; 129 } 130 131 /* Copy data from URB */ 132 spin_lock_irqsave(&dev->slock, flags); 133 dev->isoc_ctl.isoc_copy(dev, urb); 134 spin_unlock_irqrestore(&dev->slock, flags); 135 136 /* Reset urb buffers */ 137 for (i = 0; i < urb->number_of_packets; i++) { 138 urb->iso_frame_desc[i].status = 0; 139 urb->iso_frame_desc[i].actual_length = 0; 140 } 141 urb->status = 0; 142 143 urb->status = usb_submit_urb(urb, GFP_ATOMIC); 144 if (urb->status) { 145 au0828_isocdbg("urb resubmit failed (error=%i)\n", 146 urb->status); 147 } 148 dev->stream_state = STREAM_ON; 149 } 150 151 /* 152 * Stop and Deallocate URBs 153 */ 154 static void au0828_uninit_isoc(struct au0828_dev *dev) 155 { 156 struct urb *urb; 157 int i; 158 159 au0828_isocdbg("au0828: called au0828_uninit_isoc\n"); 160 161 dev->isoc_ctl.nfields = -1; 162 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 163 urb = dev->isoc_ctl.urb[i]; 164 if (urb) { 165 if (!irqs_disabled()) 166 usb_kill_urb(urb); 167 else 168 usb_unlink_urb(urb); 169 170 if (dev->isoc_ctl.transfer_buffer[i]) { 171 usb_free_coherent(dev->usbdev, 172 urb->transfer_buffer_length, 173 dev->isoc_ctl.transfer_buffer[i], 174 urb->transfer_dma); 175 } 176 usb_free_urb(urb); 177 dev->isoc_ctl.urb[i] = NULL; 178 } 179 dev->isoc_ctl.transfer_buffer[i] = NULL; 180 } 181 182 kfree(dev->isoc_ctl.urb); 183 kfree(dev->isoc_ctl.transfer_buffer); 184 185 dev->isoc_ctl.urb = NULL; 186 dev->isoc_ctl.transfer_buffer = NULL; 187 dev->isoc_ctl.num_bufs = 0; 188 189 dev->stream_state = STREAM_OFF; 190 } 191 192 /* 193 * Allocate URBs and start IRQ 194 */ 195 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets, 196 int num_bufs, int max_pkt_size, 197 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb)) 198 { 199 struct au0828_dmaqueue *dma_q = &dev->vidq; 200 int i; 201 int sb_size, pipe; 202 struct urb *urb; 203 int j, k; 204 int rc; 205 206 au0828_isocdbg("au0828: called au0828_prepare_isoc\n"); 207 208 dev->isoc_ctl.isoc_copy = isoc_copy; 209 dev->isoc_ctl.num_bufs = num_bufs; 210 211 dev->isoc_ctl.urb = kcalloc(num_bufs, sizeof(void *), GFP_KERNEL); 212 if (!dev->isoc_ctl.urb) { 213 au0828_isocdbg("cannot alloc memory for usb buffers\n"); 214 return -ENOMEM; 215 } 216 217 dev->isoc_ctl.transfer_buffer = kcalloc(num_bufs, sizeof(void *), 218 GFP_KERNEL); 219 if (!dev->isoc_ctl.transfer_buffer) { 220 au0828_isocdbg("cannot allocate memory for usb transfer\n"); 221 kfree(dev->isoc_ctl.urb); 222 return -ENOMEM; 223 } 224 225 dev->isoc_ctl.max_pkt_size = max_pkt_size; 226 dev->isoc_ctl.buf = NULL; 227 228 sb_size = max_packets * dev->isoc_ctl.max_pkt_size; 229 230 /* allocate urbs and transfer buffers */ 231 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 232 urb = usb_alloc_urb(max_packets, GFP_KERNEL); 233 if (!urb) { 234 au0828_isocdbg("cannot allocate URB\n"); 235 au0828_uninit_isoc(dev); 236 return -ENOMEM; 237 } 238 dev->isoc_ctl.urb[i] = urb; 239 240 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev, 241 sb_size, GFP_KERNEL, &urb->transfer_dma); 242 if (!dev->isoc_ctl.transfer_buffer[i]) { 243 au0828_isocdbg("cannot allocate transfer buffer\n"); 244 au0828_uninit_isoc(dev); 245 return -ENOMEM; 246 } 247 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size); 248 249 pipe = usb_rcvisocpipe(dev->usbdev, 250 dev->isoc_in_endpointaddr); 251 252 usb_fill_int_urb(urb, dev->usbdev, pipe, 253 dev->isoc_ctl.transfer_buffer[i], sb_size, 254 au0828_irq_callback, dma_q, 1); 255 256 urb->number_of_packets = max_packets; 257 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; 258 259 k = 0; 260 for (j = 0; j < max_packets; j++) { 261 urb->iso_frame_desc[j].offset = k; 262 urb->iso_frame_desc[j].length = 263 dev->isoc_ctl.max_pkt_size; 264 k += dev->isoc_ctl.max_pkt_size; 265 } 266 } 267 268 /* submit urbs and enables IRQ */ 269 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 270 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 271 if (rc) { 272 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 273 i, rc); 274 au0828_uninit_isoc(dev); 275 return rc; 276 } 277 } 278 279 return 0; 280 } 281 282 /* 283 * Announces that a buffer were filled and request the next 284 */ 285 static inline void buffer_filled(struct au0828_dev *dev, 286 struct au0828_dmaqueue *dma_q, 287 struct au0828_buffer *buf) 288 { 289 struct vb2_v4l2_buffer *vb = &buf->vb; 290 struct vb2_queue *q = vb->vb2_buf.vb2_queue; 291 292 /* Advice that buffer was filled */ 293 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field); 294 295 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 296 vb->sequence = dev->frame_count++; 297 else 298 vb->sequence = dev->vbi_frame_count++; 299 300 vb->field = V4L2_FIELD_INTERLACED; 301 vb->vb2_buf.timestamp = ktime_get_ns(); 302 vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE); 303 } 304 305 /* 306 * Identify the buffer header type and properly handles 307 */ 308 static void au0828_copy_video(struct au0828_dev *dev, 309 struct au0828_dmaqueue *dma_q, 310 struct au0828_buffer *buf, 311 unsigned char *p, 312 unsigned char *outp, unsigned long len) 313 { 314 void *fieldstart, *startwrite, *startread; 315 int linesdone, currlinedone, offset, lencopy, remain; 316 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */ 317 318 if (len == 0) 319 return; 320 321 if (dma_q->pos + len > buf->length) 322 len = buf->length - dma_q->pos; 323 324 startread = p; 325 remain = len; 326 327 /* Interlaces frame */ 328 if (buf->top_field) 329 fieldstart = outp; 330 else 331 fieldstart = outp + bytesperline; 332 333 linesdone = dma_q->pos / bytesperline; 334 currlinedone = dma_q->pos % bytesperline; 335 offset = linesdone * bytesperline * 2 + currlinedone; 336 startwrite = fieldstart + offset; 337 lencopy = bytesperline - currlinedone; 338 lencopy = lencopy > remain ? remain : lencopy; 339 340 if ((char *)startwrite + lencopy > (char *)outp + buf->length) { 341 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n", 342 ((char *)startwrite + lencopy) - 343 ((char *)outp + buf->length)); 344 remain = (char *)outp + buf->length - (char *)startwrite; 345 lencopy = remain; 346 } 347 if (lencopy <= 0) 348 return; 349 memcpy(startwrite, startread, lencopy); 350 351 remain -= lencopy; 352 353 while (remain > 0) { 354 startwrite += lencopy + bytesperline; 355 startread += lencopy; 356 if (bytesperline > remain) 357 lencopy = remain; 358 else 359 lencopy = bytesperline; 360 361 if ((char *)startwrite + lencopy > (char *)outp + 362 buf->length) { 363 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n", 364 ((char *)startwrite + lencopy) - 365 ((char *)outp + buf->length)); 366 lencopy = remain = (char *)outp + buf->length - 367 (char *)startwrite; 368 } 369 if (lencopy <= 0) 370 break; 371 372 memcpy(startwrite, startread, lencopy); 373 374 remain -= lencopy; 375 } 376 377 if (offset > 1440) { 378 /* We have enough data to check for greenscreen */ 379 if (outp[0] < 0x60 && outp[1440] < 0x60) 380 dev->greenscreen_detected = 1; 381 } 382 383 dma_q->pos += len; 384 } 385 386 /* 387 * generic routine to get the next available buffer 388 */ 389 static inline void get_next_buf(struct au0828_dmaqueue *dma_q, 390 struct au0828_buffer **buf) 391 { 392 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 393 394 if (list_empty(&dma_q->active)) { 395 au0828_isocdbg("No active queue to serve\n"); 396 dev->isoc_ctl.buf = NULL; 397 *buf = NULL; 398 return; 399 } 400 401 /* Get the next buffer */ 402 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 403 /* Cleans up buffer - Useful for testing for frame/URB loss */ 404 list_del(&(*buf)->list); 405 dma_q->pos = 0; 406 (*buf)->vb_buf = (*buf)->mem; 407 dev->isoc_ctl.buf = *buf; 408 409 return; 410 } 411 412 static void au0828_copy_vbi(struct au0828_dev *dev, 413 struct au0828_dmaqueue *dma_q, 414 struct au0828_buffer *buf, 415 unsigned char *p, 416 unsigned char *outp, unsigned long len) 417 { 418 unsigned char *startwrite, *startread; 419 int bytesperline; 420 int i, j = 0; 421 422 if (dev == NULL) { 423 au0828_isocdbg("dev is null\n"); 424 return; 425 } 426 427 if (dma_q == NULL) { 428 au0828_isocdbg("dma_q is null\n"); 429 return; 430 } 431 if (buf == NULL) 432 return; 433 if (p == NULL) { 434 au0828_isocdbg("p is null\n"); 435 return; 436 } 437 if (outp == NULL) { 438 au0828_isocdbg("outp is null\n"); 439 return; 440 } 441 442 bytesperline = dev->vbi_width; 443 444 if (dma_q->pos + len > buf->length) 445 len = buf->length - dma_q->pos; 446 447 startread = p; 448 startwrite = outp + (dma_q->pos / 2); 449 450 /* Make sure the bottom field populates the second half of the frame */ 451 if (buf->top_field == 0) 452 startwrite += bytesperline * dev->vbi_height; 453 454 for (i = 0; i < len; i += 2) 455 startwrite[j++] = startread[i+1]; 456 457 dma_q->pos += len; 458 } 459 460 461 /* 462 * generic routine to get the next available VBI buffer 463 */ 464 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q, 465 struct au0828_buffer **buf) 466 { 467 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq); 468 469 if (list_empty(&dma_q->active)) { 470 au0828_isocdbg("No active queue to serve\n"); 471 dev->isoc_ctl.vbi_buf = NULL; 472 *buf = NULL; 473 return; 474 } 475 476 /* Get the next buffer */ 477 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 478 /* Cleans up buffer - Useful for testing for frame/URB loss */ 479 list_del(&(*buf)->list); 480 dma_q->pos = 0; 481 (*buf)->vb_buf = (*buf)->mem; 482 dev->isoc_ctl.vbi_buf = *buf; 483 return; 484 } 485 486 /* 487 * Controls the isoc copy of each urb packet 488 */ 489 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb) 490 { 491 struct au0828_buffer *buf; 492 struct au0828_buffer *vbi_buf; 493 struct au0828_dmaqueue *dma_q = urb->context; 494 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq; 495 unsigned char *outp = NULL; 496 unsigned char *vbioutp = NULL; 497 int i, len = 0, rc = 1; 498 unsigned char *p; 499 unsigned char fbyte; 500 unsigned int vbi_field_size; 501 unsigned int remain, lencopy; 502 503 if (!dev) 504 return 0; 505 506 if (test_bit(DEV_DISCONNECTED, &dev->dev_state) || 507 test_bit(DEV_MISCONFIGURED, &dev->dev_state)) 508 return 0; 509 510 if (urb->status < 0) { 511 print_err_status(dev, -1, urb->status); 512 if (urb->status == -ENOENT) 513 return 0; 514 } 515 516 buf = dev->isoc_ctl.buf; 517 if (buf != NULL) 518 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 519 520 vbi_buf = dev->isoc_ctl.vbi_buf; 521 if (vbi_buf != NULL) 522 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0); 523 524 for (i = 0; i < urb->number_of_packets; i++) { 525 int status = urb->iso_frame_desc[i].status; 526 527 if (status < 0) { 528 print_err_status(dev, i, status); 529 if (urb->iso_frame_desc[i].status != -EPROTO) 530 continue; 531 } 532 533 if (urb->iso_frame_desc[i].actual_length <= 0) 534 continue; 535 536 if (urb->iso_frame_desc[i].actual_length > 537 dev->max_pkt_size) { 538 au0828_isocdbg("packet bigger than packet size"); 539 continue; 540 } 541 542 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset; 543 fbyte = p[0]; 544 len = urb->iso_frame_desc[i].actual_length - 4; 545 p += 4; 546 547 if (fbyte & 0x80) { 548 len -= 4; 549 p += 4; 550 au0828_isocdbg("Video frame %s\n", 551 (fbyte & 0x40) ? "odd" : "even"); 552 if (fbyte & 0x40) { 553 /* VBI */ 554 if (vbi_buf != NULL) 555 buffer_filled(dev, vbi_dma_q, vbi_buf); 556 vbi_get_next_buf(vbi_dma_q, &vbi_buf); 557 if (vbi_buf == NULL) 558 vbioutp = NULL; 559 else 560 vbioutp = vb2_plane_vaddr( 561 &vbi_buf->vb.vb2_buf, 0); 562 563 /* Video */ 564 if (buf != NULL) 565 buffer_filled(dev, dma_q, buf); 566 get_next_buf(dma_q, &buf); 567 if (buf == NULL) 568 outp = NULL; 569 else 570 outp = vb2_plane_vaddr( 571 &buf->vb.vb2_buf, 0); 572 573 /* As long as isoc traffic is arriving, keep 574 resetting the timer */ 575 if (dev->vid_timeout_running) 576 mod_timer(&dev->vid_timeout, 577 jiffies + (HZ / 10)); 578 if (dev->vbi_timeout_running) 579 mod_timer(&dev->vbi_timeout, 580 jiffies + (HZ / 10)); 581 } 582 583 if (buf != NULL) { 584 if (fbyte & 0x40) 585 buf->top_field = 1; 586 else 587 buf->top_field = 0; 588 } 589 590 if (vbi_buf != NULL) { 591 if (fbyte & 0x40) 592 vbi_buf->top_field = 1; 593 else 594 vbi_buf->top_field = 0; 595 } 596 597 dev->vbi_read = 0; 598 vbi_dma_q->pos = 0; 599 dma_q->pos = 0; 600 } 601 602 vbi_field_size = dev->vbi_width * dev->vbi_height * 2; 603 if (dev->vbi_read < vbi_field_size) { 604 remain = vbi_field_size - dev->vbi_read; 605 if (len < remain) 606 lencopy = len; 607 else 608 lencopy = remain; 609 610 if (vbi_buf != NULL) 611 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p, 612 vbioutp, len); 613 614 len -= lencopy; 615 p += lencopy; 616 dev->vbi_read += lencopy; 617 } 618 619 if (dev->vbi_read >= vbi_field_size && buf != NULL) 620 au0828_copy_video(dev, dma_q, buf, p, outp, len); 621 } 622 return rc; 623 } 624 625 void au0828_usb_v4l2_media_release(struct au0828_dev *dev) 626 { 627 #ifdef CONFIG_MEDIA_CONTROLLER 628 int i; 629 630 for (i = 0; i < AU0828_MAX_INPUT; i++) { 631 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) 632 return; 633 media_device_unregister_entity(&dev->input_ent[i]); 634 } 635 #endif 636 } 637 638 static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev) 639 { 640 struct au0828_dev *dev = 641 container_of(v4l2_dev, struct au0828_dev, v4l2_dev); 642 643 v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl); 644 v4l2_device_unregister(&dev->v4l2_dev); 645 au0828_usb_v4l2_media_release(dev); 646 au0828_usb_release(dev); 647 } 648 649 int au0828_v4l2_device_register(struct usb_interface *interface, 650 struct au0828_dev *dev) 651 { 652 int retval; 653 654 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 655 return 0; 656 657 /* Create the v4l2_device */ 658 #ifdef CONFIG_MEDIA_CONTROLLER 659 dev->v4l2_dev.mdev = dev->media_dev; 660 #endif 661 retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev); 662 if (retval) { 663 pr_err("%s() v4l2_device_register failed\n", 664 __func__); 665 return retval; 666 } 667 668 dev->v4l2_dev.release = au0828_usb_v4l2_release; 669 670 /* This control handler will inherit the controls from au8522 */ 671 retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4); 672 if (retval) { 673 pr_err("%s() v4l2_ctrl_handler_init failed\n", 674 __func__); 675 return retval; 676 } 677 dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl; 678 679 return 0; 680 } 681 682 static int queue_setup(struct vb2_queue *vq, 683 unsigned int *nbuffers, unsigned int *nplanes, 684 unsigned int sizes[], struct device *alloc_devs[]) 685 { 686 struct au0828_dev *dev = vb2_get_drv_priv(vq); 687 unsigned long size = dev->height * dev->bytesperline; 688 689 if (*nplanes) 690 return sizes[0] < size ? -EINVAL : 0; 691 *nplanes = 1; 692 sizes[0] = size; 693 return 0; 694 } 695 696 static int 697 buffer_prepare(struct vb2_buffer *vb) 698 { 699 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 700 struct au0828_buffer *buf = container_of(vbuf, 701 struct au0828_buffer, vb); 702 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 703 704 buf->length = dev->height * dev->bytesperline; 705 706 if (vb2_plane_size(vb, 0) < buf->length) { 707 pr_err("%s data will not fit into plane (%lu < %lu)\n", 708 __func__, vb2_plane_size(vb, 0), buf->length); 709 return -EINVAL; 710 } 711 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length); 712 return 0; 713 } 714 715 static void 716 buffer_queue(struct vb2_buffer *vb) 717 { 718 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 719 struct au0828_buffer *buf = container_of(vbuf, 720 struct au0828_buffer, 721 vb); 722 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 723 struct au0828_dmaqueue *vidq = &dev->vidq; 724 unsigned long flags = 0; 725 726 buf->mem = vb2_plane_vaddr(vb, 0); 727 buf->length = vb2_plane_size(vb, 0); 728 729 spin_lock_irqsave(&dev->slock, flags); 730 list_add_tail(&buf->list, &vidq->active); 731 spin_unlock_irqrestore(&dev->slock, flags); 732 } 733 734 static int au0828_i2s_init(struct au0828_dev *dev) 735 { 736 /* Enable i2s mode */ 737 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01); 738 return 0; 739 } 740 741 /* 742 * Auvitek au0828 analog stream enable 743 */ 744 static int au0828_analog_stream_enable(struct au0828_dev *d) 745 { 746 struct usb_interface *iface; 747 int ret, h, w; 748 749 dprintk(1, "au0828_analog_stream_enable called\n"); 750 751 if (test_bit(DEV_DISCONNECTED, &d->dev_state)) 752 return -ENODEV; 753 754 iface = usb_ifnum_to_if(d->usbdev, 0); 755 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) { 756 dprintk(1, "Changing intf#0 to alt 5\n"); 757 /* set au0828 interface0 to AS5 here again */ 758 ret = usb_set_interface(d->usbdev, 0, 5); 759 if (ret < 0) { 760 pr_info("Au0828 can't set alt setting to 5!\n"); 761 return -EBUSY; 762 } 763 } 764 765 h = d->height / 2 + 2; 766 w = d->width * 2; 767 768 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00); 769 au0828_writereg(d, 0x106, 0x00); 770 /* set x position */ 771 au0828_writereg(d, 0x110, 0x00); 772 au0828_writereg(d, 0x111, 0x00); 773 au0828_writereg(d, 0x114, w & 0xff); 774 au0828_writereg(d, 0x115, w >> 8); 775 /* set y position */ 776 au0828_writereg(d, 0x112, 0x00); 777 au0828_writereg(d, 0x113, 0x00); 778 au0828_writereg(d, 0x116, h & 0xff); 779 au0828_writereg(d, 0x117, h >> 8); 780 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3); 781 782 return 0; 783 } 784 785 static int au0828_analog_stream_disable(struct au0828_dev *d) 786 { 787 dprintk(1, "au0828_analog_stream_disable called\n"); 788 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0); 789 return 0; 790 } 791 792 static void au0828_analog_stream_reset(struct au0828_dev *dev) 793 { 794 dprintk(1, "au0828_analog_stream_reset called\n"); 795 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0); 796 mdelay(30); 797 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3); 798 } 799 800 /* 801 * Some operations needs to stop current streaming 802 */ 803 static int au0828_stream_interrupt(struct au0828_dev *dev) 804 { 805 dev->stream_state = STREAM_INTERRUPT; 806 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) 807 return -ENODEV; 808 return 0; 809 } 810 811 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count) 812 { 813 struct au0828_dev *dev = vb2_get_drv_priv(vq); 814 int rc = 0; 815 816 dprintk(1, "au0828_start_analog_streaming called %d\n", 817 dev->streaming_users); 818 819 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 820 dev->frame_count = 0; 821 else 822 dev->vbi_frame_count = 0; 823 824 if (dev->streaming_users == 0) { 825 /* If we were doing ac97 instead of i2s, it would go here...*/ 826 au0828_i2s_init(dev); 827 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB, 828 AU0828_MAX_ISO_BUFS, dev->max_pkt_size, 829 au0828_isoc_copy); 830 if (rc < 0) { 831 pr_info("au0828_init_isoc failed\n"); 832 return rc; 833 } 834 835 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1); 836 837 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 838 dev->vid_timeout_running = 1; 839 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 840 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 841 dev->vbi_timeout_running = 1; 842 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 843 } 844 } 845 dev->streaming_users++; 846 return rc; 847 } 848 849 static void au0828_stop_streaming(struct vb2_queue *vq) 850 { 851 struct au0828_dev *dev = vb2_get_drv_priv(vq); 852 struct au0828_dmaqueue *vidq = &dev->vidq; 853 unsigned long flags = 0; 854 855 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users); 856 857 if (dev->streaming_users-- == 1) { 858 au0828_uninit_isoc(dev); 859 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 860 } 861 862 dev->vid_timeout_running = 0; 863 del_timer_sync(&dev->vid_timeout); 864 865 spin_lock_irqsave(&dev->slock, flags); 866 if (dev->isoc_ctl.buf != NULL) { 867 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf, 868 VB2_BUF_STATE_ERROR); 869 dev->isoc_ctl.buf = NULL; 870 } 871 while (!list_empty(&vidq->active)) { 872 struct au0828_buffer *buf; 873 874 buf = list_entry(vidq->active.next, struct au0828_buffer, list); 875 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 876 list_del(&buf->list); 877 } 878 spin_unlock_irqrestore(&dev->slock, flags); 879 } 880 881 void au0828_stop_vbi_streaming(struct vb2_queue *vq) 882 { 883 struct au0828_dev *dev = vb2_get_drv_priv(vq); 884 struct au0828_dmaqueue *vbiq = &dev->vbiq; 885 unsigned long flags = 0; 886 887 dprintk(1, "au0828_stop_vbi_streaming called %d\n", 888 dev->streaming_users); 889 890 if (dev->streaming_users-- == 1) { 891 au0828_uninit_isoc(dev); 892 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 893 } 894 895 spin_lock_irqsave(&dev->slock, flags); 896 if (dev->isoc_ctl.vbi_buf != NULL) { 897 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf, 898 VB2_BUF_STATE_ERROR); 899 dev->isoc_ctl.vbi_buf = NULL; 900 } 901 while (!list_empty(&vbiq->active)) { 902 struct au0828_buffer *buf; 903 904 buf = list_entry(vbiq->active.next, struct au0828_buffer, list); 905 list_del(&buf->list); 906 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 907 } 908 spin_unlock_irqrestore(&dev->slock, flags); 909 910 dev->vbi_timeout_running = 0; 911 del_timer_sync(&dev->vbi_timeout); 912 } 913 914 static const struct vb2_ops au0828_video_qops = { 915 .queue_setup = queue_setup, 916 .buf_prepare = buffer_prepare, 917 .buf_queue = buffer_queue, 918 .prepare_streaming = v4l_vb2q_enable_media_source, 919 .start_streaming = au0828_start_analog_streaming, 920 .stop_streaming = au0828_stop_streaming, 921 .wait_prepare = vb2_ops_wait_prepare, 922 .wait_finish = vb2_ops_wait_finish, 923 }; 924 925 /* ------------------------------------------------------------------ 926 V4L2 interface 927 ------------------------------------------------------------------*/ 928 /* 929 * au0828_analog_unregister 930 * unregister v4l2 devices 931 */ 932 int au0828_analog_unregister(struct au0828_dev *dev) 933 { 934 dprintk(1, "au0828_analog_unregister called\n"); 935 936 /* No analog TV */ 937 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 938 return 0; 939 940 mutex_lock(&au0828_sysfs_lock); 941 vb2_video_unregister_device(&dev->vdev); 942 vb2_video_unregister_device(&dev->vbi_dev); 943 mutex_unlock(&au0828_sysfs_lock); 944 945 v4l2_device_disconnect(&dev->v4l2_dev); 946 v4l2_device_put(&dev->v4l2_dev); 947 948 return 1; 949 } 950 951 /* This function ensures that video frames continue to be delivered even if 952 the ITU-656 input isn't receiving any data (thereby preventing applications 953 such as tvtime from hanging) */ 954 static void au0828_vid_buffer_timeout(struct timer_list *t) 955 { 956 struct au0828_dev *dev = from_timer(dev, t, vid_timeout); 957 struct au0828_dmaqueue *dma_q = &dev->vidq; 958 struct au0828_buffer *buf; 959 unsigned char *vid_data; 960 unsigned long flags = 0; 961 962 spin_lock_irqsave(&dev->slock, flags); 963 964 buf = dev->isoc_ctl.buf; 965 if (buf != NULL) { 966 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 967 memset(vid_data, 0x00, buf->length); /* Blank green frame */ 968 buffer_filled(dev, dma_q, buf); 969 } 970 get_next_buf(dma_q, &buf); 971 972 if (dev->vid_timeout_running == 1) 973 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 974 975 spin_unlock_irqrestore(&dev->slock, flags); 976 } 977 978 static void au0828_vbi_buffer_timeout(struct timer_list *t) 979 { 980 struct au0828_dev *dev = from_timer(dev, t, vbi_timeout); 981 struct au0828_dmaqueue *dma_q = &dev->vbiq; 982 struct au0828_buffer *buf; 983 unsigned char *vbi_data; 984 unsigned long flags = 0; 985 986 spin_lock_irqsave(&dev->slock, flags); 987 988 buf = dev->isoc_ctl.vbi_buf; 989 if (buf != NULL) { 990 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 991 memset(vbi_data, 0x00, buf->length); 992 buffer_filled(dev, dma_q, buf); 993 } 994 vbi_get_next_buf(dma_q, &buf); 995 996 if (dev->vbi_timeout_running == 1) 997 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 998 spin_unlock_irqrestore(&dev->slock, flags); 999 } 1000 1001 static int au0828_v4l2_open(struct file *filp) 1002 { 1003 struct au0828_dev *dev = video_drvdata(filp); 1004 int ret; 1005 1006 dprintk(1, 1007 "%s called std_set %d dev_state %ld stream users %d users %d\n", 1008 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1009 dev->streaming_users, dev->users); 1010 1011 if (mutex_lock_interruptible(&dev->lock)) 1012 return -ERESTARTSYS; 1013 1014 ret = v4l2_fh_open(filp); 1015 if (ret) { 1016 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n", 1017 __func__, ret); 1018 mutex_unlock(&dev->lock); 1019 return ret; 1020 } 1021 1022 if (dev->users == 0) { 1023 au0828_analog_stream_enable(dev); 1024 au0828_analog_stream_reset(dev); 1025 dev->stream_state = STREAM_OFF; 1026 set_bit(DEV_INITIALIZED, &dev->dev_state); 1027 } 1028 dev->users++; 1029 mutex_unlock(&dev->lock); 1030 return ret; 1031 } 1032 1033 static int au0828_v4l2_close(struct file *filp) 1034 { 1035 int ret; 1036 struct au0828_dev *dev = video_drvdata(filp); 1037 struct video_device *vdev = video_devdata(filp); 1038 1039 dprintk(1, 1040 "%s called std_set %d dev_state %ld stream users %d users %d\n", 1041 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1042 dev->streaming_users, dev->users); 1043 1044 mutex_lock(&dev->lock); 1045 if (vdev->vfl_type == VFL_TYPE_VIDEO && dev->vid_timeout_running) { 1046 /* Cancel timeout thread in case they didn't call streamoff */ 1047 dev->vid_timeout_running = 0; 1048 del_timer_sync(&dev->vid_timeout); 1049 } else if (vdev->vfl_type == VFL_TYPE_VBI && 1050 dev->vbi_timeout_running) { 1051 /* Cancel timeout thread in case they didn't call streamoff */ 1052 dev->vbi_timeout_running = 0; 1053 del_timer_sync(&dev->vbi_timeout); 1054 } 1055 1056 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) 1057 goto end; 1058 1059 if (dev->users == 1) { 1060 /* 1061 * Avoid putting tuner in sleep if DVB or ALSA are 1062 * streaming. 1063 * 1064 * On most USB devices like au0828 the tuner can 1065 * be safely put in sleep state here if ALSA isn't 1066 * streaming. Exceptions are some very old USB tuner 1067 * models such as em28xx-based WinTV USB2 which have 1068 * a separate audio output jack. The devices that have 1069 * a separate audio output jack have analog tuners, 1070 * like Philips FM1236. Those devices are always on, 1071 * so the s_power callback are silently ignored. 1072 * So, the current logic here does the following: 1073 * Disable (put tuner to sleep) when 1074 * - ALSA and DVB aren't streaming. 1075 * - the last V4L2 file handler is closed. 1076 * 1077 * FIXME: 1078 * 1079 * Additionally, this logic could be improved to 1080 * disable the media source if the above conditions 1081 * are met and if the device: 1082 * - doesn't have a separate audio out plug (or 1083 * - doesn't use a silicon tuner like xc2028/3028/4000/5000). 1084 * 1085 * Once this additional logic is in place, a callback 1086 * is needed to enable the media source and power on 1087 * the tuner, for radio to work. 1088 */ 1089 ret = v4l_enable_media_source(vdev); 1090 if (ret == 0) 1091 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, 1092 standby); 1093 dev->std_set_in_tuner_core = 0; 1094 1095 /* When close the device, set the usb intf0 into alt0 to free 1096 USB bandwidth */ 1097 ret = usb_set_interface(dev->usbdev, 0, 0); 1098 if (ret < 0) 1099 pr_info("Au0828 can't set alternate to 0!\n"); 1100 } 1101 end: 1102 _vb2_fop_release(filp, NULL); 1103 dev->users--; 1104 mutex_unlock(&dev->lock); 1105 return 0; 1106 } 1107 1108 /* Must be called with dev->lock held */ 1109 static void au0828_init_tuner(struct au0828_dev *dev) 1110 { 1111 struct v4l2_frequency f = { 1112 .frequency = dev->ctrl_freq, 1113 .type = V4L2_TUNER_ANALOG_TV, 1114 }; 1115 1116 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1117 dev->std_set_in_tuner_core, dev->dev_state); 1118 1119 if (dev->std_set_in_tuner_core) 1120 return; 1121 dev->std_set_in_tuner_core = 1; 1122 i2c_gate_ctrl(dev, 1); 1123 /* If we've never sent the standard in tuner core, do so now. 1124 We don't do this at device probe because we don't want to 1125 incur the cost of a firmware load */ 1126 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std); 1127 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 1128 i2c_gate_ctrl(dev, 0); 1129 } 1130 1131 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd, 1132 struct v4l2_format *format) 1133 { 1134 int ret; 1135 int width = format->fmt.pix.width; 1136 int height = format->fmt.pix.height; 1137 1138 /* If they are demanding a format other than the one we support, 1139 bail out (tvtime asks for UYVY and then retries with YUYV) */ 1140 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY) 1141 return -EINVAL; 1142 1143 /* format->fmt.pix.width only support 720 and height 480 */ 1144 if (width != 720) 1145 width = 720; 1146 if (height != 480) 1147 height = 480; 1148 1149 format->fmt.pix.width = width; 1150 format->fmt.pix.height = height; 1151 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1152 format->fmt.pix.bytesperline = width * 2; 1153 format->fmt.pix.sizeimage = width * height * 2; 1154 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1155 format->fmt.pix.field = V4L2_FIELD_INTERLACED; 1156 1157 if (cmd == VIDIOC_TRY_FMT) 1158 return 0; 1159 1160 /* maybe set new image format, driver current only support 720*480 */ 1161 dev->width = width; 1162 dev->height = height; 1163 dev->frame_size = width * height * 2; 1164 dev->field_size = width * height; 1165 dev->bytesperline = width * 2; 1166 1167 if (dev->stream_state == STREAM_ON) { 1168 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n"); 1169 ret = au0828_stream_interrupt(dev); 1170 if (ret != 0) { 1171 dprintk(1, "error interrupting video stream!\n"); 1172 return ret; 1173 } 1174 } 1175 1176 au0828_analog_stream_enable(dev); 1177 1178 return 0; 1179 } 1180 1181 static int vidioc_querycap(struct file *file, void *priv, 1182 struct v4l2_capability *cap) 1183 { 1184 struct au0828_dev *dev = video_drvdata(file); 1185 1186 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1187 dev->std_set_in_tuner_core, dev->dev_state); 1188 1189 strscpy(cap->driver, "au0828", sizeof(cap->driver)); 1190 strscpy(cap->card, dev->board.name, sizeof(cap->card)); 1191 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info)); 1192 1193 /* set the device capabilities */ 1194 cap->capabilities = 1195 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | 1196 V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE | 1197 V4L2_CAP_DEVICE_CAPS; 1198 return 0; 1199 } 1200 1201 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1202 struct v4l2_fmtdesc *f) 1203 { 1204 if (f->index) 1205 return -EINVAL; 1206 1207 dprintk(1, "%s called\n", __func__); 1208 1209 f->pixelformat = V4L2_PIX_FMT_UYVY; 1210 1211 return 0; 1212 } 1213 1214 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 1215 struct v4l2_format *f) 1216 { 1217 struct au0828_dev *dev = video_drvdata(file); 1218 1219 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1220 dev->std_set_in_tuner_core, dev->dev_state); 1221 1222 f->fmt.pix.width = dev->width; 1223 f->fmt.pix.height = dev->height; 1224 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1225 f->fmt.pix.bytesperline = dev->bytesperline; 1226 f->fmt.pix.sizeimage = dev->frame_size; 1227 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */ 1228 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 1229 return 0; 1230 } 1231 1232 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 1233 struct v4l2_format *f) 1234 { 1235 struct au0828_dev *dev = video_drvdata(file); 1236 1237 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1238 dev->std_set_in_tuner_core, dev->dev_state); 1239 1240 return au0828_set_format(dev, VIDIOC_TRY_FMT, f); 1241 } 1242 1243 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1244 struct v4l2_format *f) 1245 { 1246 struct au0828_dev *dev = video_drvdata(file); 1247 int rc; 1248 1249 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1250 dev->std_set_in_tuner_core, dev->dev_state); 1251 1252 rc = check_dev(dev); 1253 if (rc < 0) 1254 return rc; 1255 1256 if (vb2_is_busy(&dev->vb_vidq)) { 1257 pr_info("%s queue busy\n", __func__); 1258 rc = -EBUSY; 1259 goto out; 1260 } 1261 1262 rc = au0828_set_format(dev, VIDIOC_S_FMT, f); 1263 out: 1264 return rc; 1265 } 1266 1267 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) 1268 { 1269 struct au0828_dev *dev = video_drvdata(file); 1270 1271 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1272 dev->std_set_in_tuner_core, dev->dev_state); 1273 1274 if (norm == dev->std) 1275 return 0; 1276 1277 if (dev->streaming_users > 0) 1278 return -EBUSY; 1279 1280 dev->std = norm; 1281 1282 au0828_init_tuner(dev); 1283 1284 i2c_gate_ctrl(dev, 1); 1285 1286 /* 1287 * FIXME: when we support something other than 60Hz standards, 1288 * we are going to have to make the au0828 bridge adjust the size 1289 * of its capture buffer, which is currently hardcoded at 720x480 1290 */ 1291 1292 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm); 1293 1294 i2c_gate_ctrl(dev, 0); 1295 1296 return 0; 1297 } 1298 1299 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) 1300 { 1301 struct au0828_dev *dev = video_drvdata(file); 1302 1303 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1304 dev->std_set_in_tuner_core, dev->dev_state); 1305 1306 *norm = dev->std; 1307 return 0; 1308 } 1309 1310 static int vidioc_enum_input(struct file *file, void *priv, 1311 struct v4l2_input *input) 1312 { 1313 struct au0828_dev *dev = video_drvdata(file); 1314 unsigned int tmp; 1315 1316 static const char *inames[] = { 1317 [AU0828_VMUX_UNDEFINED] = "Undefined", 1318 [AU0828_VMUX_COMPOSITE] = "Composite", 1319 [AU0828_VMUX_SVIDEO] = "S-Video", 1320 [AU0828_VMUX_CABLE] = "Cable TV", 1321 [AU0828_VMUX_TELEVISION] = "Television", 1322 [AU0828_VMUX_DVB] = "DVB", 1323 }; 1324 1325 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1326 dev->std_set_in_tuner_core, dev->dev_state); 1327 1328 tmp = input->index; 1329 1330 if (tmp >= AU0828_MAX_INPUT) 1331 return -EINVAL; 1332 if (AUVI_INPUT(tmp).type == 0) 1333 return -EINVAL; 1334 1335 input->index = tmp; 1336 strscpy(input->name, inames[AUVI_INPUT(tmp).type], sizeof(input->name)); 1337 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) || 1338 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) { 1339 input->type |= V4L2_INPUT_TYPE_TUNER; 1340 input->audioset = 1; 1341 } else { 1342 input->type |= V4L2_INPUT_TYPE_CAMERA; 1343 input->audioset = 2; 1344 } 1345 1346 input->std = dev->vdev.tvnorms; 1347 1348 return 0; 1349 } 1350 1351 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1352 { 1353 struct au0828_dev *dev = video_drvdata(file); 1354 1355 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1356 dev->std_set_in_tuner_core, dev->dev_state); 1357 1358 *i = dev->ctrl_input; 1359 return 0; 1360 } 1361 1362 static void au0828_s_input(struct au0828_dev *dev, int index) 1363 { 1364 int i; 1365 1366 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1367 dev->std_set_in_tuner_core, dev->dev_state); 1368 1369 switch (AUVI_INPUT(index).type) { 1370 case AU0828_VMUX_SVIDEO: 1371 dev->input_type = AU0828_VMUX_SVIDEO; 1372 dev->ctrl_ainput = 1; 1373 break; 1374 case AU0828_VMUX_COMPOSITE: 1375 dev->input_type = AU0828_VMUX_COMPOSITE; 1376 dev->ctrl_ainput = 1; 1377 break; 1378 case AU0828_VMUX_TELEVISION: 1379 dev->input_type = AU0828_VMUX_TELEVISION; 1380 dev->ctrl_ainput = 0; 1381 break; 1382 default: 1383 dprintk(1, "unknown input type set [%d]\n", 1384 AUVI_INPUT(index).type); 1385 return; 1386 } 1387 1388 dev->ctrl_input = index; 1389 1390 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 1391 AUVI_INPUT(index).vmux, 0, 0); 1392 1393 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1394 int enable = 0; 1395 if (AUVI_INPUT(i).audio_setup == NULL) 1396 continue; 1397 1398 if (i == index) 1399 enable = 1; 1400 else 1401 enable = 0; 1402 if (enable) { 1403 (AUVI_INPUT(i).audio_setup)(dev, enable); 1404 } else { 1405 /* Make sure we leave it turned on if some 1406 other input is routed to this callback */ 1407 if ((AUVI_INPUT(i).audio_setup) != 1408 ((AUVI_INPUT(index).audio_setup))) { 1409 (AUVI_INPUT(i).audio_setup)(dev, enable); 1410 } 1411 } 1412 } 1413 1414 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 1415 AUVI_INPUT(index).amux, 0, 0); 1416 } 1417 1418 static int vidioc_s_input(struct file *file, void *priv, unsigned int index) 1419 { 1420 struct au0828_dev *dev = video_drvdata(file); 1421 struct video_device *vfd = video_devdata(file); 1422 1423 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__, 1424 index); 1425 if (index >= AU0828_MAX_INPUT) 1426 return -EINVAL; 1427 if (AUVI_INPUT(index).type == 0) 1428 return -EINVAL; 1429 1430 if (dev->ctrl_input == index) 1431 return 0; 1432 1433 au0828_s_input(dev, index); 1434 1435 /* 1436 * Input has been changed. Disable the media source 1437 * associated with the old input and enable source 1438 * for the newly set input 1439 */ 1440 v4l_disable_media_source(vfd); 1441 return v4l_enable_media_source(vfd); 1442 } 1443 1444 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a) 1445 { 1446 if (a->index > 1) 1447 return -EINVAL; 1448 1449 dprintk(1, "%s called\n", __func__); 1450 1451 if (a->index == 0) 1452 strscpy(a->name, "Television", sizeof(a->name)); 1453 else 1454 strscpy(a->name, "Line in", sizeof(a->name)); 1455 1456 a->capability = V4L2_AUDCAP_STEREO; 1457 return 0; 1458 } 1459 1460 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 1461 { 1462 struct au0828_dev *dev = video_drvdata(file); 1463 1464 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1465 dev->std_set_in_tuner_core, dev->dev_state); 1466 1467 a->index = dev->ctrl_ainput; 1468 if (a->index == 0) 1469 strscpy(a->name, "Television", sizeof(a->name)); 1470 else 1471 strscpy(a->name, "Line in", sizeof(a->name)); 1472 1473 a->capability = V4L2_AUDCAP_STEREO; 1474 return 0; 1475 } 1476 1477 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 1478 { 1479 struct au0828_dev *dev = video_drvdata(file); 1480 1481 if (a->index != dev->ctrl_ainput) 1482 return -EINVAL; 1483 1484 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1485 dev->std_set_in_tuner_core, dev->dev_state); 1486 return 0; 1487 } 1488 1489 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1490 { 1491 struct au0828_dev *dev = video_drvdata(file); 1492 struct video_device *vfd = video_devdata(file); 1493 int ret; 1494 1495 if (t->index != 0) 1496 return -EINVAL; 1497 1498 ret = v4l_enable_media_source(vfd); 1499 if (ret) 1500 return ret; 1501 1502 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1503 dev->std_set_in_tuner_core, dev->dev_state); 1504 1505 strscpy(t->name, "Auvitek tuner", sizeof(t->name)); 1506 1507 au0828_init_tuner(dev); 1508 i2c_gate_ctrl(dev, 1); 1509 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 1510 i2c_gate_ctrl(dev, 0); 1511 return 0; 1512 } 1513 1514 static int vidioc_s_tuner(struct file *file, void *priv, 1515 const struct v4l2_tuner *t) 1516 { 1517 struct au0828_dev *dev = video_drvdata(file); 1518 1519 if (t->index != 0) 1520 return -EINVAL; 1521 1522 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1523 dev->std_set_in_tuner_core, dev->dev_state); 1524 1525 au0828_init_tuner(dev); 1526 i2c_gate_ctrl(dev, 1); 1527 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 1528 i2c_gate_ctrl(dev, 0); 1529 1530 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal, 1531 t->afc); 1532 1533 return 0; 1534 1535 } 1536 1537 static int vidioc_g_frequency(struct file *file, void *priv, 1538 struct v4l2_frequency *freq) 1539 { 1540 struct au0828_dev *dev = video_drvdata(file); 1541 1542 if (freq->tuner != 0) 1543 return -EINVAL; 1544 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1545 dev->std_set_in_tuner_core, dev->dev_state); 1546 freq->frequency = dev->ctrl_freq; 1547 return 0; 1548 } 1549 1550 static int vidioc_s_frequency(struct file *file, void *priv, 1551 const struct v4l2_frequency *freq) 1552 { 1553 struct au0828_dev *dev = video_drvdata(file); 1554 struct v4l2_frequency new_freq = *freq; 1555 1556 if (freq->tuner != 0) 1557 return -EINVAL; 1558 1559 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1560 dev->std_set_in_tuner_core, dev->dev_state); 1561 1562 au0828_init_tuner(dev); 1563 i2c_gate_ctrl(dev, 1); 1564 1565 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq); 1566 /* Get the actual set (and possibly clamped) frequency */ 1567 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq); 1568 dev->ctrl_freq = new_freq.frequency; 1569 1570 i2c_gate_ctrl(dev, 0); 1571 1572 au0828_analog_stream_reset(dev); 1573 1574 return 0; 1575 } 1576 1577 1578 /* RAW VBI ioctls */ 1579 1580 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 1581 struct v4l2_format *format) 1582 { 1583 struct au0828_dev *dev = video_drvdata(file); 1584 1585 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1586 dev->std_set_in_tuner_core, dev->dev_state); 1587 1588 format->fmt.vbi.samples_per_line = dev->vbi_width; 1589 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1590 format->fmt.vbi.offset = 0; 1591 format->fmt.vbi.flags = 0; 1592 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 1593 1594 format->fmt.vbi.count[0] = dev->vbi_height; 1595 format->fmt.vbi.count[1] = dev->vbi_height; 1596 format->fmt.vbi.start[0] = 21; 1597 format->fmt.vbi.start[1] = 284; 1598 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved)); 1599 1600 return 0; 1601 } 1602 1603 static int vidioc_g_pixelaspect(struct file *file, void *priv, 1604 int type, struct v4l2_fract *f) 1605 { 1606 struct au0828_dev *dev = video_drvdata(file); 1607 1608 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1609 return -EINVAL; 1610 1611 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1612 dev->std_set_in_tuner_core, dev->dev_state); 1613 1614 f->numerator = 54; 1615 f->denominator = 59; 1616 1617 return 0; 1618 } 1619 1620 static int vidioc_g_selection(struct file *file, void *priv, 1621 struct v4l2_selection *s) 1622 { 1623 struct au0828_dev *dev = video_drvdata(file); 1624 1625 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1626 return -EINVAL; 1627 1628 switch (s->target) { 1629 case V4L2_SEL_TGT_CROP_BOUNDS: 1630 case V4L2_SEL_TGT_CROP_DEFAULT: 1631 s->r.left = 0; 1632 s->r.top = 0; 1633 s->r.width = dev->width; 1634 s->r.height = dev->height; 1635 break; 1636 default: 1637 return -EINVAL; 1638 } 1639 return 0; 1640 } 1641 1642 #ifdef CONFIG_VIDEO_ADV_DEBUG 1643 static int vidioc_g_register(struct file *file, void *priv, 1644 struct v4l2_dbg_register *reg) 1645 { 1646 struct au0828_dev *dev = video_drvdata(file); 1647 1648 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1649 dev->std_set_in_tuner_core, dev->dev_state); 1650 1651 reg->val = au0828_read(dev, reg->reg); 1652 reg->size = 1; 1653 return 0; 1654 } 1655 1656 static int vidioc_s_register(struct file *file, void *priv, 1657 const struct v4l2_dbg_register *reg) 1658 { 1659 struct au0828_dev *dev = video_drvdata(file); 1660 1661 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1662 dev->std_set_in_tuner_core, dev->dev_state); 1663 1664 return au0828_writereg(dev, reg->reg, reg->val); 1665 } 1666 #endif 1667 1668 static int vidioc_log_status(struct file *file, void *fh) 1669 { 1670 struct video_device *vdev = video_devdata(file); 1671 1672 dprintk(1, "%s called\n", __func__); 1673 1674 v4l2_ctrl_log_status(file, fh); 1675 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status); 1676 return 0; 1677 } 1678 1679 void au0828_v4l2_suspend(struct au0828_dev *dev) 1680 { 1681 struct urb *urb; 1682 int i; 1683 1684 pr_info("stopping V4L2\n"); 1685 1686 if (dev->stream_state == STREAM_ON) { 1687 pr_info("stopping V4L2 active URBs\n"); 1688 au0828_analog_stream_disable(dev); 1689 /* stop urbs */ 1690 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1691 urb = dev->isoc_ctl.urb[i]; 1692 if (urb) { 1693 if (!irqs_disabled()) 1694 usb_kill_urb(urb); 1695 else 1696 usb_unlink_urb(urb); 1697 } 1698 } 1699 } 1700 1701 if (dev->vid_timeout_running) 1702 del_timer_sync(&dev->vid_timeout); 1703 if (dev->vbi_timeout_running) 1704 del_timer_sync(&dev->vbi_timeout); 1705 } 1706 1707 void au0828_v4l2_resume(struct au0828_dev *dev) 1708 { 1709 int i, rc; 1710 1711 pr_info("restarting V4L2\n"); 1712 1713 if (dev->stream_state == STREAM_ON) { 1714 au0828_stream_interrupt(dev); 1715 au0828_init_tuner(dev); 1716 } 1717 1718 if (dev->vid_timeout_running) 1719 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 1720 if (dev->vbi_timeout_running) 1721 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1722 1723 /* If we were doing ac97 instead of i2s, it would go here...*/ 1724 au0828_i2s_init(dev); 1725 1726 au0828_analog_stream_enable(dev); 1727 1728 if (!(dev->stream_state == STREAM_ON)) { 1729 au0828_analog_stream_reset(dev); 1730 /* submit urbs */ 1731 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1732 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 1733 if (rc) { 1734 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 1735 i, rc); 1736 au0828_uninit_isoc(dev); 1737 } 1738 } 1739 } 1740 } 1741 1742 static const struct v4l2_file_operations au0828_v4l_fops = { 1743 .owner = THIS_MODULE, 1744 .open = au0828_v4l2_open, 1745 .release = au0828_v4l2_close, 1746 .read = vb2_fop_read, 1747 .poll = vb2_fop_poll, 1748 .mmap = vb2_fop_mmap, 1749 .unlocked_ioctl = video_ioctl2, 1750 }; 1751 1752 static const struct v4l2_ioctl_ops video_ioctl_ops = { 1753 .vidioc_querycap = vidioc_querycap, 1754 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1755 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1756 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1757 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1758 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1759 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1760 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1761 .vidioc_enumaudio = vidioc_enumaudio, 1762 .vidioc_g_audio = vidioc_g_audio, 1763 .vidioc_s_audio = vidioc_s_audio, 1764 .vidioc_g_pixelaspect = vidioc_g_pixelaspect, 1765 .vidioc_g_selection = vidioc_g_selection, 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 dev->vdev.device_caps = 1982 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | 1983 V4L2_CAP_TUNER | V4L2_CAP_VIDEO_CAPTURE; 1984 strscpy(dev->vdev.name, "au0828a video", sizeof(dev->vdev.name)); 1985 1986 /* Setup the VBI device */ 1987 dev->vbi_dev = au0828_video_template; 1988 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev; 1989 dev->vbi_dev.lock = &dev->lock; 1990 dev->vbi_dev.queue = &dev->vb_vbiq; 1991 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock; 1992 dev->vbi_dev.device_caps = 1993 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | 1994 V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE; 1995 strscpy(dev->vbi_dev.name, "au0828a vbi", sizeof(dev->vbi_dev.name)); 1996 1997 /* Init entities at the Media Controller */ 1998 au0828_analog_create_entities(dev); 1999 2000 /* initialize videobuf2 stuff */ 2001 retval = au0828_vb2_setup(dev); 2002 if (retval != 0) { 2003 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n", 2004 retval); 2005 return -ENODEV; 2006 } 2007 2008 /* Register the v4l2 device */ 2009 video_set_drvdata(&dev->vdev, dev); 2010 retval = video_register_device(&dev->vdev, VFL_TYPE_VIDEO, -1); 2011 if (retval != 0) { 2012 dprintk(1, "unable to register video device (error = %d).\n", 2013 retval); 2014 return -ENODEV; 2015 } 2016 2017 /* Register the vbi device */ 2018 video_set_drvdata(&dev->vbi_dev, dev); 2019 retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1); 2020 if (retval != 0) { 2021 dprintk(1, "unable to register vbi device (error = %d).\n", 2022 retval); 2023 ret = -ENODEV; 2024 goto err_reg_vbi_dev; 2025 } 2026 2027 #ifdef CONFIG_MEDIA_CONTROLLER 2028 retval = v4l2_mc_create_media_graph(dev->media_dev); 2029 if (retval) { 2030 pr_err("%s() au0282_dev_register failed to create graph\n", 2031 __func__); 2032 ret = -ENODEV; 2033 goto err_reg_vbi_dev; 2034 } 2035 #endif 2036 2037 dprintk(1, "%s completed!\n", __func__); 2038 2039 return 0; 2040 2041 err_reg_vbi_dev: 2042 vb2_video_unregister_device(&dev->vdev); 2043 return ret; 2044 } 2045 2046