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 lencopy = umin(len, remain); 606 607 if (vbi_buf != NULL) 608 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p, 609 vbioutp, len); 610 611 len -= lencopy; 612 p += lencopy; 613 dev->vbi_read += lencopy; 614 } 615 616 if (dev->vbi_read >= vbi_field_size && buf != NULL) 617 au0828_copy_video(dev, dma_q, buf, p, outp, len); 618 } 619 return rc; 620 } 621 622 void au0828_usb_v4l2_media_release(struct au0828_dev *dev) 623 { 624 #ifdef CONFIG_MEDIA_CONTROLLER 625 int i; 626 627 for (i = 0; i < AU0828_MAX_INPUT; i++) { 628 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) 629 return; 630 media_device_unregister_entity(&dev->input_ent[i]); 631 } 632 #endif 633 } 634 635 static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev) 636 { 637 struct au0828_dev *dev = 638 container_of(v4l2_dev, struct au0828_dev, v4l2_dev); 639 640 v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl); 641 v4l2_device_unregister(&dev->v4l2_dev); 642 au0828_usb_v4l2_media_release(dev); 643 au0828_usb_release(dev); 644 } 645 646 int au0828_v4l2_device_register(struct usb_interface *interface, 647 struct au0828_dev *dev) 648 { 649 int retval; 650 651 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 652 return 0; 653 654 /* Create the v4l2_device */ 655 #ifdef CONFIG_MEDIA_CONTROLLER 656 dev->v4l2_dev.mdev = dev->media_dev; 657 #endif 658 retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev); 659 if (retval) { 660 pr_err("%s() v4l2_device_register failed\n", 661 __func__); 662 return retval; 663 } 664 665 dev->v4l2_dev.release = au0828_usb_v4l2_release; 666 667 /* This control handler will inherit the controls from au8522 */ 668 retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4); 669 if (retval) { 670 pr_err("%s() v4l2_ctrl_handler_init failed\n", 671 __func__); 672 return retval; 673 } 674 dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl; 675 676 return 0; 677 } 678 679 static int queue_setup(struct vb2_queue *vq, 680 unsigned int *nbuffers, unsigned int *nplanes, 681 unsigned int sizes[], struct device *alloc_devs[]) 682 { 683 struct au0828_dev *dev = vb2_get_drv_priv(vq); 684 unsigned long size = dev->height * dev->bytesperline; 685 686 if (*nplanes) 687 return sizes[0] < size ? -EINVAL : 0; 688 *nplanes = 1; 689 sizes[0] = size; 690 return 0; 691 } 692 693 static int 694 buffer_prepare(struct vb2_buffer *vb) 695 { 696 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 697 struct au0828_buffer *buf = container_of(vbuf, 698 struct au0828_buffer, vb); 699 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 700 701 buf->length = dev->height * dev->bytesperline; 702 703 if (vb2_plane_size(vb, 0) < buf->length) { 704 pr_err("%s data will not fit into plane (%lu < %lu)\n", 705 __func__, vb2_plane_size(vb, 0), buf->length); 706 return -EINVAL; 707 } 708 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length); 709 return 0; 710 } 711 712 static void 713 buffer_queue(struct vb2_buffer *vb) 714 { 715 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 716 struct au0828_buffer *buf = container_of(vbuf, 717 struct au0828_buffer, 718 vb); 719 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 720 struct au0828_dmaqueue *vidq = &dev->vidq; 721 unsigned long flags = 0; 722 723 buf->mem = vb2_plane_vaddr(vb, 0); 724 buf->length = vb2_plane_size(vb, 0); 725 726 spin_lock_irqsave(&dev->slock, flags); 727 list_add_tail(&buf->list, &vidq->active); 728 spin_unlock_irqrestore(&dev->slock, flags); 729 } 730 731 static int au0828_i2s_init(struct au0828_dev *dev) 732 { 733 /* Enable i2s mode */ 734 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01); 735 return 0; 736 } 737 738 /* 739 * Auvitek au0828 analog stream enable 740 */ 741 static int au0828_analog_stream_enable(struct au0828_dev *d) 742 { 743 struct usb_interface *iface; 744 int ret, h, w; 745 746 dprintk(1, "au0828_analog_stream_enable called\n"); 747 748 if (test_bit(DEV_DISCONNECTED, &d->dev_state)) 749 return -ENODEV; 750 751 iface = usb_ifnum_to_if(d->usbdev, 0); 752 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) { 753 dprintk(1, "Changing intf#0 to alt 5\n"); 754 /* set au0828 interface0 to AS5 here again */ 755 ret = usb_set_interface(d->usbdev, 0, 5); 756 if (ret < 0) { 757 pr_info("Au0828 can't set alt setting to 5!\n"); 758 return -EBUSY; 759 } 760 } 761 762 h = d->height / 2 + 2; 763 w = d->width * 2; 764 765 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00); 766 au0828_writereg(d, 0x106, 0x00); 767 /* set x position */ 768 au0828_writereg(d, 0x110, 0x00); 769 au0828_writereg(d, 0x111, 0x00); 770 au0828_writereg(d, 0x114, w & 0xff); 771 au0828_writereg(d, 0x115, w >> 8); 772 /* set y position */ 773 au0828_writereg(d, 0x112, 0x00); 774 au0828_writereg(d, 0x113, 0x00); 775 au0828_writereg(d, 0x116, h & 0xff); 776 au0828_writereg(d, 0x117, h >> 8); 777 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3); 778 779 return 0; 780 } 781 782 static int au0828_analog_stream_disable(struct au0828_dev *d) 783 { 784 dprintk(1, "au0828_analog_stream_disable called\n"); 785 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0); 786 return 0; 787 } 788 789 static void au0828_analog_stream_reset(struct au0828_dev *dev) 790 { 791 dprintk(1, "au0828_analog_stream_reset called\n"); 792 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0); 793 mdelay(30); 794 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3); 795 } 796 797 /* 798 * Some operations needs to stop current streaming 799 */ 800 static int au0828_stream_interrupt(struct au0828_dev *dev) 801 { 802 dev->stream_state = STREAM_INTERRUPT; 803 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) 804 return -ENODEV; 805 return 0; 806 } 807 808 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count) 809 { 810 struct au0828_dev *dev = vb2_get_drv_priv(vq); 811 int rc = 0; 812 813 dprintk(1, "au0828_start_analog_streaming called %d\n", 814 dev->streaming_users); 815 816 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 817 dev->frame_count = 0; 818 else 819 dev->vbi_frame_count = 0; 820 821 if (dev->streaming_users == 0) { 822 /* If we were doing ac97 instead of i2s, it would go here...*/ 823 au0828_i2s_init(dev); 824 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB, 825 AU0828_MAX_ISO_BUFS, dev->max_pkt_size, 826 au0828_isoc_copy); 827 if (rc < 0) { 828 pr_info("au0828_init_isoc failed\n"); 829 return rc; 830 } 831 832 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1); 833 834 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 835 dev->vid_timeout_running = 1; 836 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 837 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 838 dev->vbi_timeout_running = 1; 839 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 840 } 841 } 842 dev->streaming_users++; 843 return rc; 844 } 845 846 static void au0828_stop_streaming(struct vb2_queue *vq) 847 { 848 struct au0828_dev *dev = vb2_get_drv_priv(vq); 849 struct au0828_dmaqueue *vidq = &dev->vidq; 850 unsigned long flags = 0; 851 852 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users); 853 854 if (dev->streaming_users-- == 1) { 855 au0828_uninit_isoc(dev); 856 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 857 } 858 859 dev->vid_timeout_running = 0; 860 del_timer_sync(&dev->vid_timeout); 861 862 spin_lock_irqsave(&dev->slock, flags); 863 if (dev->isoc_ctl.buf != NULL) { 864 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf, 865 VB2_BUF_STATE_ERROR); 866 dev->isoc_ctl.buf = NULL; 867 } 868 while (!list_empty(&vidq->active)) { 869 struct au0828_buffer *buf; 870 871 buf = list_entry(vidq->active.next, struct au0828_buffer, list); 872 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 873 list_del(&buf->list); 874 } 875 spin_unlock_irqrestore(&dev->slock, flags); 876 } 877 878 void au0828_stop_vbi_streaming(struct vb2_queue *vq) 879 { 880 struct au0828_dev *dev = vb2_get_drv_priv(vq); 881 struct au0828_dmaqueue *vbiq = &dev->vbiq; 882 unsigned long flags = 0; 883 884 dprintk(1, "au0828_stop_vbi_streaming called %d\n", 885 dev->streaming_users); 886 887 if (dev->streaming_users-- == 1) { 888 au0828_uninit_isoc(dev); 889 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 890 } 891 892 spin_lock_irqsave(&dev->slock, flags); 893 if (dev->isoc_ctl.vbi_buf != NULL) { 894 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf, 895 VB2_BUF_STATE_ERROR); 896 dev->isoc_ctl.vbi_buf = NULL; 897 } 898 while (!list_empty(&vbiq->active)) { 899 struct au0828_buffer *buf; 900 901 buf = list_entry(vbiq->active.next, struct au0828_buffer, list); 902 list_del(&buf->list); 903 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 904 } 905 spin_unlock_irqrestore(&dev->slock, flags); 906 907 dev->vbi_timeout_running = 0; 908 del_timer_sync(&dev->vbi_timeout); 909 } 910 911 static const struct vb2_ops au0828_video_qops = { 912 .queue_setup = queue_setup, 913 .buf_prepare = buffer_prepare, 914 .buf_queue = buffer_queue, 915 .prepare_streaming = v4l_vb2q_enable_media_source, 916 .start_streaming = au0828_start_analog_streaming, 917 .stop_streaming = au0828_stop_streaming, 918 }; 919 920 /* ------------------------------------------------------------------ 921 V4L2 interface 922 ------------------------------------------------------------------*/ 923 /* 924 * au0828_analog_unregister 925 * unregister v4l2 devices 926 */ 927 int au0828_analog_unregister(struct au0828_dev *dev) 928 { 929 dprintk(1, "au0828_analog_unregister called\n"); 930 931 /* No analog TV */ 932 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 933 return 0; 934 935 mutex_lock(&au0828_sysfs_lock); 936 vb2_video_unregister_device(&dev->vdev); 937 vb2_video_unregister_device(&dev->vbi_dev); 938 mutex_unlock(&au0828_sysfs_lock); 939 940 v4l2_device_disconnect(&dev->v4l2_dev); 941 v4l2_device_put(&dev->v4l2_dev); 942 943 return 1; 944 } 945 946 /* This function ensures that video frames continue to be delivered even if 947 the ITU-656 input isn't receiving any data (thereby preventing applications 948 such as tvtime from hanging) */ 949 static void au0828_vid_buffer_timeout(struct timer_list *t) 950 { 951 struct au0828_dev *dev = from_timer(dev, t, vid_timeout); 952 struct au0828_dmaqueue *dma_q = &dev->vidq; 953 struct au0828_buffer *buf; 954 unsigned char *vid_data; 955 unsigned long flags = 0; 956 957 spin_lock_irqsave(&dev->slock, flags); 958 959 buf = dev->isoc_ctl.buf; 960 if (buf != NULL) { 961 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 962 memset(vid_data, 0x00, buf->length); /* Blank green frame */ 963 buffer_filled(dev, dma_q, buf); 964 } 965 get_next_buf(dma_q, &buf); 966 967 if (dev->vid_timeout_running == 1) 968 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 969 970 spin_unlock_irqrestore(&dev->slock, flags); 971 } 972 973 static void au0828_vbi_buffer_timeout(struct timer_list *t) 974 { 975 struct au0828_dev *dev = from_timer(dev, t, vbi_timeout); 976 struct au0828_dmaqueue *dma_q = &dev->vbiq; 977 struct au0828_buffer *buf; 978 unsigned char *vbi_data; 979 unsigned long flags = 0; 980 981 spin_lock_irqsave(&dev->slock, flags); 982 983 buf = dev->isoc_ctl.vbi_buf; 984 if (buf != NULL) { 985 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 986 memset(vbi_data, 0x00, buf->length); 987 buffer_filled(dev, dma_q, buf); 988 } 989 vbi_get_next_buf(dma_q, &buf); 990 991 if (dev->vbi_timeout_running == 1) 992 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 993 spin_unlock_irqrestore(&dev->slock, flags); 994 } 995 996 static int au0828_v4l2_open(struct file *filp) 997 { 998 struct au0828_dev *dev = video_drvdata(filp); 999 int ret; 1000 1001 dprintk(1, 1002 "%s called std_set %d dev_state %ld stream users %d users %d\n", 1003 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1004 dev->streaming_users, dev->users); 1005 1006 if (mutex_lock_interruptible(&dev->lock)) 1007 return -ERESTARTSYS; 1008 1009 ret = v4l2_fh_open(filp); 1010 if (ret) { 1011 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n", 1012 __func__, ret); 1013 mutex_unlock(&dev->lock); 1014 return ret; 1015 } 1016 1017 if (dev->users == 0) { 1018 au0828_analog_stream_enable(dev); 1019 au0828_analog_stream_reset(dev); 1020 dev->stream_state = STREAM_OFF; 1021 set_bit(DEV_INITIALIZED, &dev->dev_state); 1022 } 1023 dev->users++; 1024 mutex_unlock(&dev->lock); 1025 return ret; 1026 } 1027 1028 static int au0828_v4l2_close(struct file *filp) 1029 { 1030 int ret; 1031 struct au0828_dev *dev = video_drvdata(filp); 1032 struct video_device *vdev = video_devdata(filp); 1033 1034 dprintk(1, 1035 "%s called std_set %d dev_state %ld stream users %d users %d\n", 1036 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1037 dev->streaming_users, dev->users); 1038 1039 mutex_lock(&dev->lock); 1040 if (vdev->vfl_type == VFL_TYPE_VIDEO && dev->vid_timeout_running) { 1041 /* Cancel timeout thread in case they didn't call streamoff */ 1042 dev->vid_timeout_running = 0; 1043 del_timer_sync(&dev->vid_timeout); 1044 } else if (vdev->vfl_type == VFL_TYPE_VBI && 1045 dev->vbi_timeout_running) { 1046 /* Cancel timeout thread in case they didn't call streamoff */ 1047 dev->vbi_timeout_running = 0; 1048 del_timer_sync(&dev->vbi_timeout); 1049 } 1050 1051 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) 1052 goto end; 1053 1054 if (dev->users == 1) { 1055 /* 1056 * Avoid putting tuner in sleep if DVB or ALSA are 1057 * streaming. 1058 * 1059 * On most USB devices like au0828 the tuner can 1060 * be safely put in sleep state here if ALSA isn't 1061 * streaming. Exceptions are some very old USB tuner 1062 * models such as em28xx-based WinTV USB2 which have 1063 * a separate audio output jack. The devices that have 1064 * a separate audio output jack have analog tuners, 1065 * like Philips FM1236. Those devices are always on, 1066 * so the s_power callback are silently ignored. 1067 * So, the current logic here does the following: 1068 * Disable (put tuner to sleep) when 1069 * - ALSA and DVB aren't streaming. 1070 * - the last V4L2 file handler is closed. 1071 * 1072 * FIXME: 1073 * 1074 * Additionally, this logic could be improved to 1075 * disable the media source if the above conditions 1076 * are met and if the device: 1077 * - doesn't have a separate audio out plug (or 1078 * - doesn't use a silicon tuner like xc2028/3028/4000/5000). 1079 * 1080 * Once this additional logic is in place, a callback 1081 * is needed to enable the media source and power on 1082 * the tuner, for radio to work. 1083 */ 1084 ret = v4l_enable_media_source(vdev); 1085 if (ret == 0) 1086 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, 1087 standby); 1088 dev->std_set_in_tuner_core = 0; 1089 1090 /* When close the device, set the usb intf0 into alt0 to free 1091 USB bandwidth */ 1092 ret = usb_set_interface(dev->usbdev, 0, 0); 1093 if (ret < 0) 1094 pr_info("Au0828 can't set alternate to 0!\n"); 1095 } 1096 end: 1097 _vb2_fop_release(filp, NULL); 1098 dev->users--; 1099 mutex_unlock(&dev->lock); 1100 return 0; 1101 } 1102 1103 /* Must be called with dev->lock held */ 1104 static void au0828_init_tuner(struct au0828_dev *dev) 1105 { 1106 struct v4l2_frequency f = { 1107 .frequency = dev->ctrl_freq, 1108 .type = V4L2_TUNER_ANALOG_TV, 1109 }; 1110 1111 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1112 dev->std_set_in_tuner_core, dev->dev_state); 1113 1114 if (dev->std_set_in_tuner_core) 1115 return; 1116 dev->std_set_in_tuner_core = 1; 1117 i2c_gate_ctrl(dev, 1); 1118 /* If we've never sent the standard in tuner core, do so now. 1119 We don't do this at device probe because we don't want to 1120 incur the cost of a firmware load */ 1121 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std); 1122 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 1123 i2c_gate_ctrl(dev, 0); 1124 } 1125 1126 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd, 1127 struct v4l2_format *format) 1128 { 1129 int ret; 1130 int width = format->fmt.pix.width; 1131 int height = format->fmt.pix.height; 1132 1133 /* If they are demanding a format other than the one we support, 1134 bail out (tvtime asks for UYVY and then retries with YUYV) */ 1135 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY) 1136 return -EINVAL; 1137 1138 /* format->fmt.pix.width only support 720 and height 480 */ 1139 if (width != 720) 1140 width = 720; 1141 if (height != 480) 1142 height = 480; 1143 1144 format->fmt.pix.width = width; 1145 format->fmt.pix.height = height; 1146 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1147 format->fmt.pix.bytesperline = width * 2; 1148 format->fmt.pix.sizeimage = width * height * 2; 1149 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1150 format->fmt.pix.field = V4L2_FIELD_INTERLACED; 1151 1152 if (cmd == VIDIOC_TRY_FMT) 1153 return 0; 1154 1155 /* maybe set new image format, driver current only support 720*480 */ 1156 dev->width = width; 1157 dev->height = height; 1158 dev->frame_size = width * height * 2; 1159 dev->field_size = width * height; 1160 dev->bytesperline = width * 2; 1161 1162 if (dev->stream_state == STREAM_ON) { 1163 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n"); 1164 ret = au0828_stream_interrupt(dev); 1165 if (ret != 0) { 1166 dprintk(1, "error interrupting video stream!\n"); 1167 return ret; 1168 } 1169 } 1170 1171 au0828_analog_stream_enable(dev); 1172 1173 return 0; 1174 } 1175 1176 static int vidioc_querycap(struct file *file, void *priv, 1177 struct v4l2_capability *cap) 1178 { 1179 struct au0828_dev *dev = video_drvdata(file); 1180 1181 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1182 dev->std_set_in_tuner_core, dev->dev_state); 1183 1184 strscpy(cap->driver, "au0828", sizeof(cap->driver)); 1185 strscpy(cap->card, dev->board.name, sizeof(cap->card)); 1186 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info)); 1187 1188 /* set the device capabilities */ 1189 cap->capabilities = 1190 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | 1191 V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE | 1192 V4L2_CAP_DEVICE_CAPS; 1193 return 0; 1194 } 1195 1196 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1197 struct v4l2_fmtdesc *f) 1198 { 1199 if (f->index) 1200 return -EINVAL; 1201 1202 dprintk(1, "%s called\n", __func__); 1203 1204 f->pixelformat = V4L2_PIX_FMT_UYVY; 1205 1206 return 0; 1207 } 1208 1209 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 1210 struct v4l2_format *f) 1211 { 1212 struct au0828_dev *dev = video_drvdata(file); 1213 1214 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1215 dev->std_set_in_tuner_core, dev->dev_state); 1216 1217 f->fmt.pix.width = dev->width; 1218 f->fmt.pix.height = dev->height; 1219 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1220 f->fmt.pix.bytesperline = dev->bytesperline; 1221 f->fmt.pix.sizeimage = dev->frame_size; 1222 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */ 1223 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 1224 return 0; 1225 } 1226 1227 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 1228 struct v4l2_format *f) 1229 { 1230 struct au0828_dev *dev = video_drvdata(file); 1231 1232 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1233 dev->std_set_in_tuner_core, dev->dev_state); 1234 1235 return au0828_set_format(dev, VIDIOC_TRY_FMT, f); 1236 } 1237 1238 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1239 struct v4l2_format *f) 1240 { 1241 struct au0828_dev *dev = video_drvdata(file); 1242 int rc; 1243 1244 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1245 dev->std_set_in_tuner_core, dev->dev_state); 1246 1247 rc = check_dev(dev); 1248 if (rc < 0) 1249 return rc; 1250 1251 if (vb2_is_busy(&dev->vb_vidq)) { 1252 pr_info("%s queue busy\n", __func__); 1253 rc = -EBUSY; 1254 goto out; 1255 } 1256 1257 rc = au0828_set_format(dev, VIDIOC_S_FMT, f); 1258 out: 1259 return rc; 1260 } 1261 1262 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) 1263 { 1264 struct au0828_dev *dev = video_drvdata(file); 1265 1266 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1267 dev->std_set_in_tuner_core, dev->dev_state); 1268 1269 if (norm == dev->std) 1270 return 0; 1271 1272 if (dev->streaming_users > 0) 1273 return -EBUSY; 1274 1275 dev->std = norm; 1276 1277 au0828_init_tuner(dev); 1278 1279 i2c_gate_ctrl(dev, 1); 1280 1281 /* 1282 * FIXME: when we support something other than 60Hz standards, 1283 * we are going to have to make the au0828 bridge adjust the size 1284 * of its capture buffer, which is currently hardcoded at 720x480 1285 */ 1286 1287 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm); 1288 1289 i2c_gate_ctrl(dev, 0); 1290 1291 return 0; 1292 } 1293 1294 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) 1295 { 1296 struct au0828_dev *dev = video_drvdata(file); 1297 1298 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1299 dev->std_set_in_tuner_core, dev->dev_state); 1300 1301 *norm = dev->std; 1302 return 0; 1303 } 1304 1305 static int vidioc_enum_input(struct file *file, void *priv, 1306 struct v4l2_input *input) 1307 { 1308 struct au0828_dev *dev = video_drvdata(file); 1309 unsigned int tmp; 1310 1311 static const char *inames[] = { 1312 [AU0828_VMUX_UNDEFINED] = "Undefined", 1313 [AU0828_VMUX_COMPOSITE] = "Composite", 1314 [AU0828_VMUX_SVIDEO] = "S-Video", 1315 [AU0828_VMUX_CABLE] = "Cable TV", 1316 [AU0828_VMUX_TELEVISION] = "Television", 1317 [AU0828_VMUX_DVB] = "DVB", 1318 }; 1319 1320 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1321 dev->std_set_in_tuner_core, dev->dev_state); 1322 1323 tmp = input->index; 1324 1325 if (tmp >= AU0828_MAX_INPUT) 1326 return -EINVAL; 1327 if (AUVI_INPUT(tmp).type == 0) 1328 return -EINVAL; 1329 1330 input->index = tmp; 1331 strscpy(input->name, inames[AUVI_INPUT(tmp).type], sizeof(input->name)); 1332 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) || 1333 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) { 1334 input->type |= V4L2_INPUT_TYPE_TUNER; 1335 input->audioset = 1; 1336 } else { 1337 input->type |= V4L2_INPUT_TYPE_CAMERA; 1338 input->audioset = 2; 1339 } 1340 1341 input->std = dev->vdev.tvnorms; 1342 1343 return 0; 1344 } 1345 1346 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1347 { 1348 struct au0828_dev *dev = video_drvdata(file); 1349 1350 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1351 dev->std_set_in_tuner_core, dev->dev_state); 1352 1353 *i = dev->ctrl_input; 1354 return 0; 1355 } 1356 1357 static void au0828_s_input(struct au0828_dev *dev, int index) 1358 { 1359 int i; 1360 1361 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1362 dev->std_set_in_tuner_core, dev->dev_state); 1363 1364 switch (AUVI_INPUT(index).type) { 1365 case AU0828_VMUX_SVIDEO: 1366 dev->input_type = AU0828_VMUX_SVIDEO; 1367 dev->ctrl_ainput = 1; 1368 break; 1369 case AU0828_VMUX_COMPOSITE: 1370 dev->input_type = AU0828_VMUX_COMPOSITE; 1371 dev->ctrl_ainput = 1; 1372 break; 1373 case AU0828_VMUX_TELEVISION: 1374 dev->input_type = AU0828_VMUX_TELEVISION; 1375 dev->ctrl_ainput = 0; 1376 break; 1377 default: 1378 dprintk(1, "unknown input type set [%d]\n", 1379 AUVI_INPUT(index).type); 1380 return; 1381 } 1382 1383 dev->ctrl_input = index; 1384 1385 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 1386 AUVI_INPUT(index).vmux, 0, 0); 1387 1388 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1389 int enable = 0; 1390 if (AUVI_INPUT(i).audio_setup == NULL) 1391 continue; 1392 1393 if (i == index) 1394 enable = 1; 1395 else 1396 enable = 0; 1397 if (enable) { 1398 (AUVI_INPUT(i).audio_setup)(dev, enable); 1399 } else { 1400 /* Make sure we leave it turned on if some 1401 other input is routed to this callback */ 1402 if ((AUVI_INPUT(i).audio_setup) != 1403 ((AUVI_INPUT(index).audio_setup))) { 1404 (AUVI_INPUT(i).audio_setup)(dev, enable); 1405 } 1406 } 1407 } 1408 1409 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 1410 AUVI_INPUT(index).amux, 0, 0); 1411 } 1412 1413 static int vidioc_s_input(struct file *file, void *priv, unsigned int index) 1414 { 1415 struct au0828_dev *dev = video_drvdata(file); 1416 struct video_device *vfd = video_devdata(file); 1417 1418 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__, 1419 index); 1420 if (index >= AU0828_MAX_INPUT) 1421 return -EINVAL; 1422 if (AUVI_INPUT(index).type == 0) 1423 return -EINVAL; 1424 1425 if (dev->ctrl_input == index) 1426 return 0; 1427 1428 au0828_s_input(dev, index); 1429 1430 /* 1431 * Input has been changed. Disable the media source 1432 * associated with the old input and enable source 1433 * for the newly set input 1434 */ 1435 v4l_disable_media_source(vfd); 1436 return v4l_enable_media_source(vfd); 1437 } 1438 1439 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a) 1440 { 1441 if (a->index > 1) 1442 return -EINVAL; 1443 1444 dprintk(1, "%s called\n", __func__); 1445 1446 if (a->index == 0) 1447 strscpy(a->name, "Television", sizeof(a->name)); 1448 else 1449 strscpy(a->name, "Line in", sizeof(a->name)); 1450 1451 a->capability = V4L2_AUDCAP_STEREO; 1452 return 0; 1453 } 1454 1455 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 1456 { 1457 struct au0828_dev *dev = video_drvdata(file); 1458 1459 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1460 dev->std_set_in_tuner_core, dev->dev_state); 1461 1462 a->index = dev->ctrl_ainput; 1463 if (a->index == 0) 1464 strscpy(a->name, "Television", sizeof(a->name)); 1465 else 1466 strscpy(a->name, "Line in", sizeof(a->name)); 1467 1468 a->capability = V4L2_AUDCAP_STEREO; 1469 return 0; 1470 } 1471 1472 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 1473 { 1474 struct au0828_dev *dev = video_drvdata(file); 1475 1476 if (a->index != dev->ctrl_ainput) 1477 return -EINVAL; 1478 1479 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1480 dev->std_set_in_tuner_core, dev->dev_state); 1481 return 0; 1482 } 1483 1484 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1485 { 1486 struct au0828_dev *dev = video_drvdata(file); 1487 struct video_device *vfd = video_devdata(file); 1488 int ret; 1489 1490 if (t->index != 0) 1491 return -EINVAL; 1492 1493 ret = v4l_enable_media_source(vfd); 1494 if (ret) 1495 return ret; 1496 1497 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1498 dev->std_set_in_tuner_core, dev->dev_state); 1499 1500 strscpy(t->name, "Auvitek tuner", sizeof(t->name)); 1501 1502 au0828_init_tuner(dev); 1503 i2c_gate_ctrl(dev, 1); 1504 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 1505 i2c_gate_ctrl(dev, 0); 1506 return 0; 1507 } 1508 1509 static int vidioc_s_tuner(struct file *file, void *priv, 1510 const struct v4l2_tuner *t) 1511 { 1512 struct au0828_dev *dev = video_drvdata(file); 1513 1514 if (t->index != 0) 1515 return -EINVAL; 1516 1517 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1518 dev->std_set_in_tuner_core, dev->dev_state); 1519 1520 au0828_init_tuner(dev); 1521 i2c_gate_ctrl(dev, 1); 1522 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 1523 i2c_gate_ctrl(dev, 0); 1524 1525 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal, 1526 t->afc); 1527 1528 return 0; 1529 1530 } 1531 1532 static int vidioc_g_frequency(struct file *file, void *priv, 1533 struct v4l2_frequency *freq) 1534 { 1535 struct au0828_dev *dev = video_drvdata(file); 1536 1537 if (freq->tuner != 0) 1538 return -EINVAL; 1539 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1540 dev->std_set_in_tuner_core, dev->dev_state); 1541 freq->frequency = dev->ctrl_freq; 1542 return 0; 1543 } 1544 1545 static int vidioc_s_frequency(struct file *file, void *priv, 1546 const struct v4l2_frequency *freq) 1547 { 1548 struct au0828_dev *dev = video_drvdata(file); 1549 struct v4l2_frequency new_freq = *freq; 1550 1551 if (freq->tuner != 0) 1552 return -EINVAL; 1553 1554 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1555 dev->std_set_in_tuner_core, dev->dev_state); 1556 1557 au0828_init_tuner(dev); 1558 i2c_gate_ctrl(dev, 1); 1559 1560 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq); 1561 /* Get the actual set (and possibly clamped) frequency */ 1562 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq); 1563 dev->ctrl_freq = new_freq.frequency; 1564 1565 i2c_gate_ctrl(dev, 0); 1566 1567 au0828_analog_stream_reset(dev); 1568 1569 return 0; 1570 } 1571 1572 1573 /* RAW VBI ioctls */ 1574 1575 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 1576 struct v4l2_format *format) 1577 { 1578 struct au0828_dev *dev = video_drvdata(file); 1579 1580 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1581 dev->std_set_in_tuner_core, dev->dev_state); 1582 1583 format->fmt.vbi.samples_per_line = dev->vbi_width; 1584 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1585 format->fmt.vbi.offset = 0; 1586 format->fmt.vbi.flags = 0; 1587 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 1588 1589 format->fmt.vbi.count[0] = dev->vbi_height; 1590 format->fmt.vbi.count[1] = dev->vbi_height; 1591 format->fmt.vbi.start[0] = 21; 1592 format->fmt.vbi.start[1] = 284; 1593 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved)); 1594 1595 return 0; 1596 } 1597 1598 static int vidioc_g_pixelaspect(struct file *file, void *priv, 1599 int type, struct v4l2_fract *f) 1600 { 1601 struct au0828_dev *dev = video_drvdata(file); 1602 1603 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1604 return -EINVAL; 1605 1606 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1607 dev->std_set_in_tuner_core, dev->dev_state); 1608 1609 f->numerator = 54; 1610 f->denominator = 59; 1611 1612 return 0; 1613 } 1614 1615 static int vidioc_g_selection(struct file *file, void *priv, 1616 struct v4l2_selection *s) 1617 { 1618 struct au0828_dev *dev = video_drvdata(file); 1619 1620 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1621 return -EINVAL; 1622 1623 switch (s->target) { 1624 case V4L2_SEL_TGT_CROP_BOUNDS: 1625 case V4L2_SEL_TGT_CROP_DEFAULT: 1626 s->r.left = 0; 1627 s->r.top = 0; 1628 s->r.width = dev->width; 1629 s->r.height = dev->height; 1630 break; 1631 default: 1632 return -EINVAL; 1633 } 1634 return 0; 1635 } 1636 1637 #ifdef CONFIG_VIDEO_ADV_DEBUG 1638 static int vidioc_g_register(struct file *file, void *priv, 1639 struct v4l2_dbg_register *reg) 1640 { 1641 struct au0828_dev *dev = video_drvdata(file); 1642 1643 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1644 dev->std_set_in_tuner_core, dev->dev_state); 1645 1646 reg->val = au0828_read(dev, reg->reg); 1647 reg->size = 1; 1648 return 0; 1649 } 1650 1651 static int vidioc_s_register(struct file *file, void *priv, 1652 const struct v4l2_dbg_register *reg) 1653 { 1654 struct au0828_dev *dev = video_drvdata(file); 1655 1656 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1657 dev->std_set_in_tuner_core, dev->dev_state); 1658 1659 return au0828_writereg(dev, reg->reg, reg->val); 1660 } 1661 #endif 1662 1663 static int vidioc_log_status(struct file *file, void *fh) 1664 { 1665 struct video_device *vdev = video_devdata(file); 1666 1667 dprintk(1, "%s called\n", __func__); 1668 1669 v4l2_ctrl_log_status(file, fh); 1670 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status); 1671 return 0; 1672 } 1673 1674 void au0828_v4l2_suspend(struct au0828_dev *dev) 1675 { 1676 struct urb *urb; 1677 int i; 1678 1679 pr_info("stopping V4L2\n"); 1680 1681 if (dev->stream_state == STREAM_ON) { 1682 pr_info("stopping V4L2 active URBs\n"); 1683 au0828_analog_stream_disable(dev); 1684 /* stop urbs */ 1685 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1686 urb = dev->isoc_ctl.urb[i]; 1687 if (urb) { 1688 if (!irqs_disabled()) 1689 usb_kill_urb(urb); 1690 else 1691 usb_unlink_urb(urb); 1692 } 1693 } 1694 } 1695 1696 if (dev->vid_timeout_running) 1697 del_timer_sync(&dev->vid_timeout); 1698 if (dev->vbi_timeout_running) 1699 del_timer_sync(&dev->vbi_timeout); 1700 } 1701 1702 void au0828_v4l2_resume(struct au0828_dev *dev) 1703 { 1704 int i, rc; 1705 1706 pr_info("restarting V4L2\n"); 1707 1708 if (dev->stream_state == STREAM_ON) { 1709 au0828_stream_interrupt(dev); 1710 au0828_init_tuner(dev); 1711 } 1712 1713 if (dev->vid_timeout_running) 1714 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 1715 if (dev->vbi_timeout_running) 1716 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1717 1718 /* If we were doing ac97 instead of i2s, it would go here...*/ 1719 au0828_i2s_init(dev); 1720 1721 au0828_analog_stream_enable(dev); 1722 1723 if (!(dev->stream_state == STREAM_ON)) { 1724 au0828_analog_stream_reset(dev); 1725 /* submit urbs */ 1726 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1727 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 1728 if (rc) { 1729 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 1730 i, rc); 1731 au0828_uninit_isoc(dev); 1732 } 1733 } 1734 } 1735 } 1736 1737 static const struct v4l2_file_operations au0828_v4l_fops = { 1738 .owner = THIS_MODULE, 1739 .open = au0828_v4l2_open, 1740 .release = au0828_v4l2_close, 1741 .read = vb2_fop_read, 1742 .poll = vb2_fop_poll, 1743 .mmap = vb2_fop_mmap, 1744 .unlocked_ioctl = video_ioctl2, 1745 }; 1746 1747 static const struct v4l2_ioctl_ops video_ioctl_ops = { 1748 .vidioc_querycap = vidioc_querycap, 1749 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1750 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1751 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1752 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1753 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1754 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1755 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1756 .vidioc_enumaudio = vidioc_enumaudio, 1757 .vidioc_g_audio = vidioc_g_audio, 1758 .vidioc_s_audio = vidioc_s_audio, 1759 .vidioc_g_pixelaspect = vidioc_g_pixelaspect, 1760 .vidioc_g_selection = vidioc_g_selection, 1761 1762 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1763 .vidioc_create_bufs = vb2_ioctl_create_bufs, 1764 .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 1765 .vidioc_querybuf = vb2_ioctl_querybuf, 1766 .vidioc_qbuf = vb2_ioctl_qbuf, 1767 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1768 .vidioc_expbuf = vb2_ioctl_expbuf, 1769 1770 .vidioc_s_std = vidioc_s_std, 1771 .vidioc_g_std = vidioc_g_std, 1772 .vidioc_enum_input = vidioc_enum_input, 1773 .vidioc_g_input = vidioc_g_input, 1774 .vidioc_s_input = vidioc_s_input, 1775 1776 .vidioc_streamon = vb2_ioctl_streamon, 1777 .vidioc_streamoff = vb2_ioctl_streamoff, 1778 1779 .vidioc_g_tuner = vidioc_g_tuner, 1780 .vidioc_s_tuner = vidioc_s_tuner, 1781 .vidioc_g_frequency = vidioc_g_frequency, 1782 .vidioc_s_frequency = vidioc_s_frequency, 1783 #ifdef CONFIG_VIDEO_ADV_DEBUG 1784 .vidioc_g_register = vidioc_g_register, 1785 .vidioc_s_register = vidioc_s_register, 1786 #endif 1787 .vidioc_log_status = vidioc_log_status, 1788 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1789 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1790 }; 1791 1792 static const struct video_device au0828_video_template = { 1793 .fops = &au0828_v4l_fops, 1794 .release = video_device_release_empty, 1795 .ioctl_ops = &video_ioctl_ops, 1796 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M, 1797 }; 1798 1799 static int au0828_vb2_setup(struct au0828_dev *dev) 1800 { 1801 int rc; 1802 struct vb2_queue *q; 1803 1804 /* Setup Videobuf2 for Video capture */ 1805 q = &dev->vb_vidq; 1806 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1807 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1808 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1809 q->drv_priv = dev; 1810 q->buf_struct_size = sizeof(struct au0828_buffer); 1811 q->ops = &au0828_video_qops; 1812 q->mem_ops = &vb2_vmalloc_memops; 1813 1814 rc = vb2_queue_init(q); 1815 if (rc < 0) 1816 return rc; 1817 1818 /* Setup Videobuf2 for VBI capture */ 1819 q = &dev->vb_vbiq; 1820 q->type = V4L2_BUF_TYPE_VBI_CAPTURE; 1821 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1822 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1823 q->drv_priv = dev; 1824 q->buf_struct_size = sizeof(struct au0828_buffer); 1825 q->ops = &au0828_vbi_qops; 1826 q->mem_ops = &vb2_vmalloc_memops; 1827 1828 rc = vb2_queue_init(q); 1829 if (rc < 0) 1830 return rc; 1831 1832 return 0; 1833 } 1834 1835 static void au0828_analog_create_entities(struct au0828_dev *dev) 1836 { 1837 #if defined(CONFIG_MEDIA_CONTROLLER) 1838 static const char * const inames[] = { 1839 [AU0828_VMUX_COMPOSITE] = "Composite", 1840 [AU0828_VMUX_SVIDEO] = "S-Video", 1841 [AU0828_VMUX_CABLE] = "Cable TV", 1842 [AU0828_VMUX_TELEVISION] = "Television", 1843 [AU0828_VMUX_DVB] = "DVB", 1844 }; 1845 int ret, i; 1846 1847 /* Initialize Video and VBI pads */ 1848 dev->video_pad.flags = MEDIA_PAD_FL_SINK; 1849 ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad); 1850 if (ret < 0) 1851 pr_err("failed to initialize video media entity!\n"); 1852 1853 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK; 1854 ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad); 1855 if (ret < 0) 1856 pr_err("failed to initialize vbi media entity!\n"); 1857 1858 /* Create entities for each input connector */ 1859 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1860 struct media_entity *ent = &dev->input_ent[i]; 1861 1862 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) 1863 break; 1864 1865 ent->name = inames[AUVI_INPUT(i).type]; 1866 ent->flags = MEDIA_ENT_FL_CONNECTOR; 1867 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE; 1868 1869 switch (AUVI_INPUT(i).type) { 1870 case AU0828_VMUX_COMPOSITE: 1871 ent->function = MEDIA_ENT_F_CONN_COMPOSITE; 1872 break; 1873 case AU0828_VMUX_SVIDEO: 1874 ent->function = MEDIA_ENT_F_CONN_SVIDEO; 1875 break; 1876 case AU0828_VMUX_CABLE: 1877 case AU0828_VMUX_TELEVISION: 1878 case AU0828_VMUX_DVB: 1879 default: /* Just to shut up a warning */ 1880 ent->function = MEDIA_ENT_F_CONN_RF; 1881 break; 1882 } 1883 1884 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]); 1885 if (ret < 0) 1886 pr_err("failed to initialize input pad[%d]!\n", i); 1887 1888 ret = media_device_register_entity(dev->media_dev, ent); 1889 if (ret < 0) 1890 pr_err("failed to register input entity %d!\n", i); 1891 } 1892 #endif 1893 } 1894 1895 /**************************************************************************/ 1896 1897 int au0828_analog_register(struct au0828_dev *dev, 1898 struct usb_interface *interface) 1899 { 1900 int retval = -ENOMEM; 1901 struct usb_host_interface *iface_desc; 1902 struct usb_endpoint_descriptor *endpoint; 1903 int i, ret; 1904 1905 dprintk(1, "au0828_analog_register called for intf#%d!\n", 1906 interface->cur_altsetting->desc.bInterfaceNumber); 1907 1908 /* No analog TV */ 1909 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 1910 return 0; 1911 1912 /* set au0828 usb interface0 to as5 */ 1913 retval = usb_set_interface(dev->usbdev, 1914 interface->cur_altsetting->desc.bInterfaceNumber, 5); 1915 if (retval != 0) { 1916 pr_info("Failure setting usb interface0 to as5\n"); 1917 return retval; 1918 } 1919 1920 /* Figure out which endpoint has the isoc interface */ 1921 iface_desc = interface->cur_altsetting; 1922 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { 1923 endpoint = &iface_desc->endpoint[i].desc; 1924 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1925 == USB_DIR_IN) && 1926 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1927 == USB_ENDPOINT_XFER_ISOC)) { 1928 1929 /* we find our isoc in endpoint */ 1930 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize); 1931 dev->max_pkt_size = (tmp & 0x07ff) * 1932 (((tmp & 0x1800) >> 11) + 1); 1933 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress; 1934 dprintk(1, 1935 "Found isoc endpoint 0x%02x, max size = %d\n", 1936 dev->isoc_in_endpointaddr, dev->max_pkt_size); 1937 } 1938 } 1939 if (!(dev->isoc_in_endpointaddr)) { 1940 pr_info("Could not locate isoc endpoint\n"); 1941 return -ENODEV; 1942 } 1943 1944 init_waitqueue_head(&dev->open); 1945 spin_lock_init(&dev->slock); 1946 1947 /* init video dma queues */ 1948 INIT_LIST_HEAD(&dev->vidq.active); 1949 INIT_LIST_HEAD(&dev->vbiq.active); 1950 1951 timer_setup(&dev->vid_timeout, au0828_vid_buffer_timeout, 0); 1952 timer_setup(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 0); 1953 1954 dev->width = NTSC_STD_W; 1955 dev->height = NTSC_STD_H; 1956 dev->field_size = dev->width * dev->height; 1957 dev->frame_size = dev->field_size << 1; 1958 dev->bytesperline = dev->width << 1; 1959 dev->vbi_width = 720; 1960 dev->vbi_height = 1; 1961 dev->ctrl_ainput = 0; 1962 dev->ctrl_freq = 960; 1963 dev->std = V4L2_STD_NTSC_M; 1964 /* Default input is TV Tuner */ 1965 au0828_s_input(dev, 0); 1966 1967 mutex_init(&dev->vb_queue_lock); 1968 mutex_init(&dev->vb_vbi_queue_lock); 1969 1970 /* Fill the video capture device struct */ 1971 dev->vdev = au0828_video_template; 1972 dev->vdev.v4l2_dev = &dev->v4l2_dev; 1973 dev->vdev.lock = &dev->lock; 1974 dev->vdev.queue = &dev->vb_vidq; 1975 dev->vdev.queue->lock = &dev->vb_queue_lock; 1976 dev->vdev.device_caps = 1977 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | 1978 V4L2_CAP_TUNER | V4L2_CAP_VIDEO_CAPTURE; 1979 strscpy(dev->vdev.name, "au0828a video", sizeof(dev->vdev.name)); 1980 1981 /* Setup the VBI device */ 1982 dev->vbi_dev = au0828_video_template; 1983 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev; 1984 dev->vbi_dev.lock = &dev->lock; 1985 dev->vbi_dev.queue = &dev->vb_vbiq; 1986 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock; 1987 dev->vbi_dev.device_caps = 1988 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | 1989 V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE; 1990 strscpy(dev->vbi_dev.name, "au0828a vbi", sizeof(dev->vbi_dev.name)); 1991 1992 /* Init entities at the Media Controller */ 1993 au0828_analog_create_entities(dev); 1994 1995 /* initialize videobuf2 stuff */ 1996 retval = au0828_vb2_setup(dev); 1997 if (retval != 0) { 1998 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n", 1999 retval); 2000 return -ENODEV; 2001 } 2002 2003 /* Register the v4l2 device */ 2004 video_set_drvdata(&dev->vdev, dev); 2005 retval = video_register_device(&dev->vdev, VFL_TYPE_VIDEO, -1); 2006 if (retval != 0) { 2007 dprintk(1, "unable to register video device (error = %d).\n", 2008 retval); 2009 return -ENODEV; 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 vb2_video_unregister_device(&dev->vdev); 2038 return ret; 2039 } 2040 2041