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 .wait_prepare = vb2_ops_wait_prepare, 919 .wait_finish = vb2_ops_wait_finish, 920 }; 921 922 /* ------------------------------------------------------------------ 923 V4L2 interface 924 ------------------------------------------------------------------*/ 925 /* 926 * au0828_analog_unregister 927 * unregister v4l2 devices 928 */ 929 int au0828_analog_unregister(struct au0828_dev *dev) 930 { 931 dprintk(1, "au0828_analog_unregister called\n"); 932 933 /* No analog TV */ 934 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 935 return 0; 936 937 mutex_lock(&au0828_sysfs_lock); 938 vb2_video_unregister_device(&dev->vdev); 939 vb2_video_unregister_device(&dev->vbi_dev); 940 mutex_unlock(&au0828_sysfs_lock); 941 942 v4l2_device_disconnect(&dev->v4l2_dev); 943 v4l2_device_put(&dev->v4l2_dev); 944 945 return 1; 946 } 947 948 /* This function ensures that video frames continue to be delivered even if 949 the ITU-656 input isn't receiving any data (thereby preventing applications 950 such as tvtime from hanging) */ 951 static void au0828_vid_buffer_timeout(struct timer_list *t) 952 { 953 struct au0828_dev *dev = from_timer(dev, t, vid_timeout); 954 struct au0828_dmaqueue *dma_q = &dev->vidq; 955 struct au0828_buffer *buf; 956 unsigned char *vid_data; 957 unsigned long flags = 0; 958 959 spin_lock_irqsave(&dev->slock, flags); 960 961 buf = dev->isoc_ctl.buf; 962 if (buf != NULL) { 963 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 964 memset(vid_data, 0x00, buf->length); /* Blank green frame */ 965 buffer_filled(dev, dma_q, buf); 966 } 967 get_next_buf(dma_q, &buf); 968 969 if (dev->vid_timeout_running == 1) 970 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 971 972 spin_unlock_irqrestore(&dev->slock, flags); 973 } 974 975 static void au0828_vbi_buffer_timeout(struct timer_list *t) 976 { 977 struct au0828_dev *dev = from_timer(dev, t, vbi_timeout); 978 struct au0828_dmaqueue *dma_q = &dev->vbiq; 979 struct au0828_buffer *buf; 980 unsigned char *vbi_data; 981 unsigned long flags = 0; 982 983 spin_lock_irqsave(&dev->slock, flags); 984 985 buf = dev->isoc_ctl.vbi_buf; 986 if (buf != NULL) { 987 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 988 memset(vbi_data, 0x00, buf->length); 989 buffer_filled(dev, dma_q, buf); 990 } 991 vbi_get_next_buf(dma_q, &buf); 992 993 if (dev->vbi_timeout_running == 1) 994 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 995 spin_unlock_irqrestore(&dev->slock, flags); 996 } 997 998 static int au0828_v4l2_open(struct file *filp) 999 { 1000 struct au0828_dev *dev = video_drvdata(filp); 1001 int ret; 1002 1003 dprintk(1, 1004 "%s called std_set %d dev_state %ld stream users %d users %d\n", 1005 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1006 dev->streaming_users, dev->users); 1007 1008 if (mutex_lock_interruptible(&dev->lock)) 1009 return -ERESTARTSYS; 1010 1011 ret = v4l2_fh_open(filp); 1012 if (ret) { 1013 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n", 1014 __func__, ret); 1015 mutex_unlock(&dev->lock); 1016 return ret; 1017 } 1018 1019 if (dev->users == 0) { 1020 au0828_analog_stream_enable(dev); 1021 au0828_analog_stream_reset(dev); 1022 dev->stream_state = STREAM_OFF; 1023 set_bit(DEV_INITIALIZED, &dev->dev_state); 1024 } 1025 dev->users++; 1026 mutex_unlock(&dev->lock); 1027 return ret; 1028 } 1029 1030 static int au0828_v4l2_close(struct file *filp) 1031 { 1032 int ret; 1033 struct au0828_dev *dev = video_drvdata(filp); 1034 struct video_device *vdev = video_devdata(filp); 1035 1036 dprintk(1, 1037 "%s called std_set %d dev_state %ld stream users %d users %d\n", 1038 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1039 dev->streaming_users, dev->users); 1040 1041 mutex_lock(&dev->lock); 1042 if (vdev->vfl_type == VFL_TYPE_VIDEO && dev->vid_timeout_running) { 1043 /* Cancel timeout thread in case they didn't call streamoff */ 1044 dev->vid_timeout_running = 0; 1045 del_timer_sync(&dev->vid_timeout); 1046 } else if (vdev->vfl_type == VFL_TYPE_VBI && 1047 dev->vbi_timeout_running) { 1048 /* Cancel timeout thread in case they didn't call streamoff */ 1049 dev->vbi_timeout_running = 0; 1050 del_timer_sync(&dev->vbi_timeout); 1051 } 1052 1053 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) 1054 goto end; 1055 1056 if (dev->users == 1) { 1057 /* 1058 * Avoid putting tuner in sleep if DVB or ALSA are 1059 * streaming. 1060 * 1061 * On most USB devices like au0828 the tuner can 1062 * be safely put in sleep state here if ALSA isn't 1063 * streaming. Exceptions are some very old USB tuner 1064 * models such as em28xx-based WinTV USB2 which have 1065 * a separate audio output jack. The devices that have 1066 * a separate audio output jack have analog tuners, 1067 * like Philips FM1236. Those devices are always on, 1068 * so the s_power callback are silently ignored. 1069 * So, the current logic here does the following: 1070 * Disable (put tuner to sleep) when 1071 * - ALSA and DVB aren't streaming. 1072 * - the last V4L2 file handler is closed. 1073 * 1074 * FIXME: 1075 * 1076 * Additionally, this logic could be improved to 1077 * disable the media source if the above conditions 1078 * are met and if the device: 1079 * - doesn't have a separate audio out plug (or 1080 * - doesn't use a silicon tuner like xc2028/3028/4000/5000). 1081 * 1082 * Once this additional logic is in place, a callback 1083 * is needed to enable the media source and power on 1084 * the tuner, for radio to work. 1085 */ 1086 ret = v4l_enable_media_source(vdev); 1087 if (ret == 0) 1088 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, 1089 standby); 1090 dev->std_set_in_tuner_core = 0; 1091 1092 /* When close the device, set the usb intf0 into alt0 to free 1093 USB bandwidth */ 1094 ret = usb_set_interface(dev->usbdev, 0, 0); 1095 if (ret < 0) 1096 pr_info("Au0828 can't set alternate to 0!\n"); 1097 } 1098 end: 1099 _vb2_fop_release(filp, NULL); 1100 dev->users--; 1101 mutex_unlock(&dev->lock); 1102 return 0; 1103 } 1104 1105 /* Must be called with dev->lock held */ 1106 static void au0828_init_tuner(struct au0828_dev *dev) 1107 { 1108 struct v4l2_frequency f = { 1109 .frequency = dev->ctrl_freq, 1110 .type = V4L2_TUNER_ANALOG_TV, 1111 }; 1112 1113 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1114 dev->std_set_in_tuner_core, dev->dev_state); 1115 1116 if (dev->std_set_in_tuner_core) 1117 return; 1118 dev->std_set_in_tuner_core = 1; 1119 i2c_gate_ctrl(dev, 1); 1120 /* If we've never sent the standard in tuner core, do so now. 1121 We don't do this at device probe because we don't want to 1122 incur the cost of a firmware load */ 1123 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std); 1124 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 1125 i2c_gate_ctrl(dev, 0); 1126 } 1127 1128 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd, 1129 struct v4l2_format *format) 1130 { 1131 int ret; 1132 int width = format->fmt.pix.width; 1133 int height = format->fmt.pix.height; 1134 1135 /* If they are demanding a format other than the one we support, 1136 bail out (tvtime asks for UYVY and then retries with YUYV) */ 1137 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY) 1138 return -EINVAL; 1139 1140 /* format->fmt.pix.width only support 720 and height 480 */ 1141 if (width != 720) 1142 width = 720; 1143 if (height != 480) 1144 height = 480; 1145 1146 format->fmt.pix.width = width; 1147 format->fmt.pix.height = height; 1148 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1149 format->fmt.pix.bytesperline = width * 2; 1150 format->fmt.pix.sizeimage = width * height * 2; 1151 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1152 format->fmt.pix.field = V4L2_FIELD_INTERLACED; 1153 1154 if (cmd == VIDIOC_TRY_FMT) 1155 return 0; 1156 1157 /* maybe set new image format, driver current only support 720*480 */ 1158 dev->width = width; 1159 dev->height = height; 1160 dev->frame_size = width * height * 2; 1161 dev->field_size = width * height; 1162 dev->bytesperline = width * 2; 1163 1164 if (dev->stream_state == STREAM_ON) { 1165 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n"); 1166 ret = au0828_stream_interrupt(dev); 1167 if (ret != 0) { 1168 dprintk(1, "error interrupting video stream!\n"); 1169 return ret; 1170 } 1171 } 1172 1173 au0828_analog_stream_enable(dev); 1174 1175 return 0; 1176 } 1177 1178 static int vidioc_querycap(struct file *file, void *priv, 1179 struct v4l2_capability *cap) 1180 { 1181 struct au0828_dev *dev = video_drvdata(file); 1182 1183 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1184 dev->std_set_in_tuner_core, dev->dev_state); 1185 1186 strscpy(cap->driver, "au0828", sizeof(cap->driver)); 1187 strscpy(cap->card, dev->board.name, sizeof(cap->card)); 1188 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info)); 1189 1190 /* set the device capabilities */ 1191 cap->capabilities = 1192 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | 1193 V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE | 1194 V4L2_CAP_DEVICE_CAPS; 1195 return 0; 1196 } 1197 1198 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1199 struct v4l2_fmtdesc *f) 1200 { 1201 if (f->index) 1202 return -EINVAL; 1203 1204 dprintk(1, "%s called\n", __func__); 1205 1206 f->pixelformat = V4L2_PIX_FMT_UYVY; 1207 1208 return 0; 1209 } 1210 1211 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 1212 struct v4l2_format *f) 1213 { 1214 struct au0828_dev *dev = video_drvdata(file); 1215 1216 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1217 dev->std_set_in_tuner_core, dev->dev_state); 1218 1219 f->fmt.pix.width = dev->width; 1220 f->fmt.pix.height = dev->height; 1221 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1222 f->fmt.pix.bytesperline = dev->bytesperline; 1223 f->fmt.pix.sizeimage = dev->frame_size; 1224 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */ 1225 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 1226 return 0; 1227 } 1228 1229 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 1230 struct v4l2_format *f) 1231 { 1232 struct au0828_dev *dev = video_drvdata(file); 1233 1234 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1235 dev->std_set_in_tuner_core, dev->dev_state); 1236 1237 return au0828_set_format(dev, VIDIOC_TRY_FMT, f); 1238 } 1239 1240 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1241 struct v4l2_format *f) 1242 { 1243 struct au0828_dev *dev = video_drvdata(file); 1244 int rc; 1245 1246 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1247 dev->std_set_in_tuner_core, dev->dev_state); 1248 1249 rc = check_dev(dev); 1250 if (rc < 0) 1251 return rc; 1252 1253 if (vb2_is_busy(&dev->vb_vidq)) { 1254 pr_info("%s queue busy\n", __func__); 1255 rc = -EBUSY; 1256 goto out; 1257 } 1258 1259 rc = au0828_set_format(dev, VIDIOC_S_FMT, f); 1260 out: 1261 return rc; 1262 } 1263 1264 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) 1265 { 1266 struct au0828_dev *dev = video_drvdata(file); 1267 1268 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1269 dev->std_set_in_tuner_core, dev->dev_state); 1270 1271 if (norm == dev->std) 1272 return 0; 1273 1274 if (dev->streaming_users > 0) 1275 return -EBUSY; 1276 1277 dev->std = norm; 1278 1279 au0828_init_tuner(dev); 1280 1281 i2c_gate_ctrl(dev, 1); 1282 1283 /* 1284 * FIXME: when we support something other than 60Hz standards, 1285 * we are going to have to make the au0828 bridge adjust the size 1286 * of its capture buffer, which is currently hardcoded at 720x480 1287 */ 1288 1289 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm); 1290 1291 i2c_gate_ctrl(dev, 0); 1292 1293 return 0; 1294 } 1295 1296 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) 1297 { 1298 struct au0828_dev *dev = video_drvdata(file); 1299 1300 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1301 dev->std_set_in_tuner_core, dev->dev_state); 1302 1303 *norm = dev->std; 1304 return 0; 1305 } 1306 1307 static int vidioc_enum_input(struct file *file, void *priv, 1308 struct v4l2_input *input) 1309 { 1310 struct au0828_dev *dev = video_drvdata(file); 1311 unsigned int tmp; 1312 1313 static const char *inames[] = { 1314 [AU0828_VMUX_UNDEFINED] = "Undefined", 1315 [AU0828_VMUX_COMPOSITE] = "Composite", 1316 [AU0828_VMUX_SVIDEO] = "S-Video", 1317 [AU0828_VMUX_CABLE] = "Cable TV", 1318 [AU0828_VMUX_TELEVISION] = "Television", 1319 [AU0828_VMUX_DVB] = "DVB", 1320 }; 1321 1322 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1323 dev->std_set_in_tuner_core, dev->dev_state); 1324 1325 tmp = input->index; 1326 1327 if (tmp >= AU0828_MAX_INPUT) 1328 return -EINVAL; 1329 if (AUVI_INPUT(tmp).type == 0) 1330 return -EINVAL; 1331 1332 input->index = tmp; 1333 strscpy(input->name, inames[AUVI_INPUT(tmp).type], sizeof(input->name)); 1334 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) || 1335 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) { 1336 input->type |= V4L2_INPUT_TYPE_TUNER; 1337 input->audioset = 1; 1338 } else { 1339 input->type |= V4L2_INPUT_TYPE_CAMERA; 1340 input->audioset = 2; 1341 } 1342 1343 input->std = dev->vdev.tvnorms; 1344 1345 return 0; 1346 } 1347 1348 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1349 { 1350 struct au0828_dev *dev = video_drvdata(file); 1351 1352 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1353 dev->std_set_in_tuner_core, dev->dev_state); 1354 1355 *i = dev->ctrl_input; 1356 return 0; 1357 } 1358 1359 static void au0828_s_input(struct au0828_dev *dev, int index) 1360 { 1361 int i; 1362 1363 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1364 dev->std_set_in_tuner_core, dev->dev_state); 1365 1366 switch (AUVI_INPUT(index).type) { 1367 case AU0828_VMUX_SVIDEO: 1368 dev->input_type = AU0828_VMUX_SVIDEO; 1369 dev->ctrl_ainput = 1; 1370 break; 1371 case AU0828_VMUX_COMPOSITE: 1372 dev->input_type = AU0828_VMUX_COMPOSITE; 1373 dev->ctrl_ainput = 1; 1374 break; 1375 case AU0828_VMUX_TELEVISION: 1376 dev->input_type = AU0828_VMUX_TELEVISION; 1377 dev->ctrl_ainput = 0; 1378 break; 1379 default: 1380 dprintk(1, "unknown input type set [%d]\n", 1381 AUVI_INPUT(index).type); 1382 return; 1383 } 1384 1385 dev->ctrl_input = index; 1386 1387 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 1388 AUVI_INPUT(index).vmux, 0, 0); 1389 1390 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1391 int enable = 0; 1392 if (AUVI_INPUT(i).audio_setup == NULL) 1393 continue; 1394 1395 if (i == index) 1396 enable = 1; 1397 else 1398 enable = 0; 1399 if (enable) { 1400 (AUVI_INPUT(i).audio_setup)(dev, enable); 1401 } else { 1402 /* Make sure we leave it turned on if some 1403 other input is routed to this callback */ 1404 if ((AUVI_INPUT(i).audio_setup) != 1405 ((AUVI_INPUT(index).audio_setup))) { 1406 (AUVI_INPUT(i).audio_setup)(dev, enable); 1407 } 1408 } 1409 } 1410 1411 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 1412 AUVI_INPUT(index).amux, 0, 0); 1413 } 1414 1415 static int vidioc_s_input(struct file *file, void *priv, unsigned int index) 1416 { 1417 struct au0828_dev *dev = video_drvdata(file); 1418 struct video_device *vfd = video_devdata(file); 1419 1420 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__, 1421 index); 1422 if (index >= AU0828_MAX_INPUT) 1423 return -EINVAL; 1424 if (AUVI_INPUT(index).type == 0) 1425 return -EINVAL; 1426 1427 if (dev->ctrl_input == index) 1428 return 0; 1429 1430 au0828_s_input(dev, index); 1431 1432 /* 1433 * Input has been changed. Disable the media source 1434 * associated with the old input and enable source 1435 * for the newly set input 1436 */ 1437 v4l_disable_media_source(vfd); 1438 return v4l_enable_media_source(vfd); 1439 } 1440 1441 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a) 1442 { 1443 if (a->index > 1) 1444 return -EINVAL; 1445 1446 dprintk(1, "%s called\n", __func__); 1447 1448 if (a->index == 0) 1449 strscpy(a->name, "Television", sizeof(a->name)); 1450 else 1451 strscpy(a->name, "Line in", sizeof(a->name)); 1452 1453 a->capability = V4L2_AUDCAP_STEREO; 1454 return 0; 1455 } 1456 1457 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 1458 { 1459 struct au0828_dev *dev = video_drvdata(file); 1460 1461 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1462 dev->std_set_in_tuner_core, dev->dev_state); 1463 1464 a->index = dev->ctrl_ainput; 1465 if (a->index == 0) 1466 strscpy(a->name, "Television", sizeof(a->name)); 1467 else 1468 strscpy(a->name, "Line in", sizeof(a->name)); 1469 1470 a->capability = V4L2_AUDCAP_STEREO; 1471 return 0; 1472 } 1473 1474 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 1475 { 1476 struct au0828_dev *dev = video_drvdata(file); 1477 1478 if (a->index != dev->ctrl_ainput) 1479 return -EINVAL; 1480 1481 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1482 dev->std_set_in_tuner_core, dev->dev_state); 1483 return 0; 1484 } 1485 1486 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1487 { 1488 struct au0828_dev *dev = video_drvdata(file); 1489 struct video_device *vfd = video_devdata(file); 1490 int ret; 1491 1492 if (t->index != 0) 1493 return -EINVAL; 1494 1495 ret = v4l_enable_media_source(vfd); 1496 if (ret) 1497 return ret; 1498 1499 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1500 dev->std_set_in_tuner_core, dev->dev_state); 1501 1502 strscpy(t->name, "Auvitek tuner", sizeof(t->name)); 1503 1504 au0828_init_tuner(dev); 1505 i2c_gate_ctrl(dev, 1); 1506 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 1507 i2c_gate_ctrl(dev, 0); 1508 return 0; 1509 } 1510 1511 static int vidioc_s_tuner(struct file *file, void *priv, 1512 const struct v4l2_tuner *t) 1513 { 1514 struct au0828_dev *dev = video_drvdata(file); 1515 1516 if (t->index != 0) 1517 return -EINVAL; 1518 1519 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1520 dev->std_set_in_tuner_core, dev->dev_state); 1521 1522 au0828_init_tuner(dev); 1523 i2c_gate_ctrl(dev, 1); 1524 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 1525 i2c_gate_ctrl(dev, 0); 1526 1527 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal, 1528 t->afc); 1529 1530 return 0; 1531 1532 } 1533 1534 static int vidioc_g_frequency(struct file *file, void *priv, 1535 struct v4l2_frequency *freq) 1536 { 1537 struct au0828_dev *dev = video_drvdata(file); 1538 1539 if (freq->tuner != 0) 1540 return -EINVAL; 1541 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1542 dev->std_set_in_tuner_core, dev->dev_state); 1543 freq->frequency = dev->ctrl_freq; 1544 return 0; 1545 } 1546 1547 static int vidioc_s_frequency(struct file *file, void *priv, 1548 const struct v4l2_frequency *freq) 1549 { 1550 struct au0828_dev *dev = video_drvdata(file); 1551 struct v4l2_frequency new_freq = *freq; 1552 1553 if (freq->tuner != 0) 1554 return -EINVAL; 1555 1556 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1557 dev->std_set_in_tuner_core, dev->dev_state); 1558 1559 au0828_init_tuner(dev); 1560 i2c_gate_ctrl(dev, 1); 1561 1562 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq); 1563 /* Get the actual set (and possibly clamped) frequency */ 1564 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq); 1565 dev->ctrl_freq = new_freq.frequency; 1566 1567 i2c_gate_ctrl(dev, 0); 1568 1569 au0828_analog_stream_reset(dev); 1570 1571 return 0; 1572 } 1573 1574 1575 /* RAW VBI ioctls */ 1576 1577 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 1578 struct v4l2_format *format) 1579 { 1580 struct au0828_dev *dev = video_drvdata(file); 1581 1582 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1583 dev->std_set_in_tuner_core, dev->dev_state); 1584 1585 format->fmt.vbi.samples_per_line = dev->vbi_width; 1586 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1587 format->fmt.vbi.offset = 0; 1588 format->fmt.vbi.flags = 0; 1589 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 1590 1591 format->fmt.vbi.count[0] = dev->vbi_height; 1592 format->fmt.vbi.count[1] = dev->vbi_height; 1593 format->fmt.vbi.start[0] = 21; 1594 format->fmt.vbi.start[1] = 284; 1595 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved)); 1596 1597 return 0; 1598 } 1599 1600 static int vidioc_g_pixelaspect(struct file *file, void *priv, 1601 int type, struct v4l2_fract *f) 1602 { 1603 struct au0828_dev *dev = video_drvdata(file); 1604 1605 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1606 return -EINVAL; 1607 1608 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1609 dev->std_set_in_tuner_core, dev->dev_state); 1610 1611 f->numerator = 54; 1612 f->denominator = 59; 1613 1614 return 0; 1615 } 1616 1617 static int vidioc_g_selection(struct file *file, void *priv, 1618 struct v4l2_selection *s) 1619 { 1620 struct au0828_dev *dev = video_drvdata(file); 1621 1622 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1623 return -EINVAL; 1624 1625 switch (s->target) { 1626 case V4L2_SEL_TGT_CROP_BOUNDS: 1627 case V4L2_SEL_TGT_CROP_DEFAULT: 1628 s->r.left = 0; 1629 s->r.top = 0; 1630 s->r.width = dev->width; 1631 s->r.height = dev->height; 1632 break; 1633 default: 1634 return -EINVAL; 1635 } 1636 return 0; 1637 } 1638 1639 #ifdef CONFIG_VIDEO_ADV_DEBUG 1640 static int vidioc_g_register(struct file *file, void *priv, 1641 struct v4l2_dbg_register *reg) 1642 { 1643 struct au0828_dev *dev = video_drvdata(file); 1644 1645 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1646 dev->std_set_in_tuner_core, dev->dev_state); 1647 1648 reg->val = au0828_read(dev, reg->reg); 1649 reg->size = 1; 1650 return 0; 1651 } 1652 1653 static int vidioc_s_register(struct file *file, void *priv, 1654 const struct v4l2_dbg_register *reg) 1655 { 1656 struct au0828_dev *dev = video_drvdata(file); 1657 1658 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1659 dev->std_set_in_tuner_core, dev->dev_state); 1660 1661 return au0828_writereg(dev, reg->reg, reg->val); 1662 } 1663 #endif 1664 1665 static int vidioc_log_status(struct file *file, void *fh) 1666 { 1667 struct video_device *vdev = video_devdata(file); 1668 1669 dprintk(1, "%s called\n", __func__); 1670 1671 v4l2_ctrl_log_status(file, fh); 1672 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status); 1673 return 0; 1674 } 1675 1676 void au0828_v4l2_suspend(struct au0828_dev *dev) 1677 { 1678 struct urb *urb; 1679 int i; 1680 1681 pr_info("stopping V4L2\n"); 1682 1683 if (dev->stream_state == STREAM_ON) { 1684 pr_info("stopping V4L2 active URBs\n"); 1685 au0828_analog_stream_disable(dev); 1686 /* stop urbs */ 1687 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1688 urb = dev->isoc_ctl.urb[i]; 1689 if (urb) { 1690 if (!irqs_disabled()) 1691 usb_kill_urb(urb); 1692 else 1693 usb_unlink_urb(urb); 1694 } 1695 } 1696 } 1697 1698 if (dev->vid_timeout_running) 1699 del_timer_sync(&dev->vid_timeout); 1700 if (dev->vbi_timeout_running) 1701 del_timer_sync(&dev->vbi_timeout); 1702 } 1703 1704 void au0828_v4l2_resume(struct au0828_dev *dev) 1705 { 1706 int i, rc; 1707 1708 pr_info("restarting V4L2\n"); 1709 1710 if (dev->stream_state == STREAM_ON) { 1711 au0828_stream_interrupt(dev); 1712 au0828_init_tuner(dev); 1713 } 1714 1715 if (dev->vid_timeout_running) 1716 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 1717 if (dev->vbi_timeout_running) 1718 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1719 1720 /* If we were doing ac97 instead of i2s, it would go here...*/ 1721 au0828_i2s_init(dev); 1722 1723 au0828_analog_stream_enable(dev); 1724 1725 if (!(dev->stream_state == STREAM_ON)) { 1726 au0828_analog_stream_reset(dev); 1727 /* submit urbs */ 1728 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1729 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 1730 if (rc) { 1731 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 1732 i, rc); 1733 au0828_uninit_isoc(dev); 1734 } 1735 } 1736 } 1737 } 1738 1739 static const struct v4l2_file_operations au0828_v4l_fops = { 1740 .owner = THIS_MODULE, 1741 .open = au0828_v4l2_open, 1742 .release = au0828_v4l2_close, 1743 .read = vb2_fop_read, 1744 .poll = vb2_fop_poll, 1745 .mmap = vb2_fop_mmap, 1746 .unlocked_ioctl = video_ioctl2, 1747 }; 1748 1749 static const struct v4l2_ioctl_ops video_ioctl_ops = { 1750 .vidioc_querycap = vidioc_querycap, 1751 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1752 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1753 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1754 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1755 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1756 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1757 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1758 .vidioc_enumaudio = vidioc_enumaudio, 1759 .vidioc_g_audio = vidioc_g_audio, 1760 .vidioc_s_audio = vidioc_s_audio, 1761 .vidioc_g_pixelaspect = vidioc_g_pixelaspect, 1762 .vidioc_g_selection = vidioc_g_selection, 1763 1764 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1765 .vidioc_create_bufs = vb2_ioctl_create_bufs, 1766 .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 1767 .vidioc_querybuf = vb2_ioctl_querybuf, 1768 .vidioc_qbuf = vb2_ioctl_qbuf, 1769 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1770 .vidioc_expbuf = vb2_ioctl_expbuf, 1771 1772 .vidioc_s_std = vidioc_s_std, 1773 .vidioc_g_std = vidioc_g_std, 1774 .vidioc_enum_input = vidioc_enum_input, 1775 .vidioc_g_input = vidioc_g_input, 1776 .vidioc_s_input = vidioc_s_input, 1777 1778 .vidioc_streamon = vb2_ioctl_streamon, 1779 .vidioc_streamoff = vb2_ioctl_streamoff, 1780 1781 .vidioc_g_tuner = vidioc_g_tuner, 1782 .vidioc_s_tuner = vidioc_s_tuner, 1783 .vidioc_g_frequency = vidioc_g_frequency, 1784 .vidioc_s_frequency = vidioc_s_frequency, 1785 #ifdef CONFIG_VIDEO_ADV_DEBUG 1786 .vidioc_g_register = vidioc_g_register, 1787 .vidioc_s_register = vidioc_s_register, 1788 #endif 1789 .vidioc_log_status = vidioc_log_status, 1790 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1791 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1792 }; 1793 1794 static const struct video_device au0828_video_template = { 1795 .fops = &au0828_v4l_fops, 1796 .release = video_device_release_empty, 1797 .ioctl_ops = &video_ioctl_ops, 1798 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M, 1799 }; 1800 1801 static int au0828_vb2_setup(struct au0828_dev *dev) 1802 { 1803 int rc; 1804 struct vb2_queue *q; 1805 1806 /* Setup Videobuf2 for Video capture */ 1807 q = &dev->vb_vidq; 1808 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1809 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1810 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1811 q->drv_priv = dev; 1812 q->buf_struct_size = sizeof(struct au0828_buffer); 1813 q->ops = &au0828_video_qops; 1814 q->mem_ops = &vb2_vmalloc_memops; 1815 1816 rc = vb2_queue_init(q); 1817 if (rc < 0) 1818 return rc; 1819 1820 /* Setup Videobuf2 for VBI capture */ 1821 q = &dev->vb_vbiq; 1822 q->type = V4L2_BUF_TYPE_VBI_CAPTURE; 1823 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1824 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1825 q->drv_priv = dev; 1826 q->buf_struct_size = sizeof(struct au0828_buffer); 1827 q->ops = &au0828_vbi_qops; 1828 q->mem_ops = &vb2_vmalloc_memops; 1829 1830 rc = vb2_queue_init(q); 1831 if (rc < 0) 1832 return rc; 1833 1834 return 0; 1835 } 1836 1837 static void au0828_analog_create_entities(struct au0828_dev *dev) 1838 { 1839 #if defined(CONFIG_MEDIA_CONTROLLER) 1840 static const char * const inames[] = { 1841 [AU0828_VMUX_COMPOSITE] = "Composite", 1842 [AU0828_VMUX_SVIDEO] = "S-Video", 1843 [AU0828_VMUX_CABLE] = "Cable TV", 1844 [AU0828_VMUX_TELEVISION] = "Television", 1845 [AU0828_VMUX_DVB] = "DVB", 1846 }; 1847 int ret, i; 1848 1849 /* Initialize Video and VBI pads */ 1850 dev->video_pad.flags = MEDIA_PAD_FL_SINK; 1851 ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad); 1852 if (ret < 0) 1853 pr_err("failed to initialize video media entity!\n"); 1854 1855 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK; 1856 ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad); 1857 if (ret < 0) 1858 pr_err("failed to initialize vbi media entity!\n"); 1859 1860 /* Create entities for each input connector */ 1861 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1862 struct media_entity *ent = &dev->input_ent[i]; 1863 1864 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) 1865 break; 1866 1867 ent->name = inames[AUVI_INPUT(i).type]; 1868 ent->flags = MEDIA_ENT_FL_CONNECTOR; 1869 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE; 1870 1871 switch (AUVI_INPUT(i).type) { 1872 case AU0828_VMUX_COMPOSITE: 1873 ent->function = MEDIA_ENT_F_CONN_COMPOSITE; 1874 break; 1875 case AU0828_VMUX_SVIDEO: 1876 ent->function = MEDIA_ENT_F_CONN_SVIDEO; 1877 break; 1878 case AU0828_VMUX_CABLE: 1879 case AU0828_VMUX_TELEVISION: 1880 case AU0828_VMUX_DVB: 1881 default: /* Just to shut up a warning */ 1882 ent->function = MEDIA_ENT_F_CONN_RF; 1883 break; 1884 } 1885 1886 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]); 1887 if (ret < 0) 1888 pr_err("failed to initialize input pad[%d]!\n", i); 1889 1890 ret = media_device_register_entity(dev->media_dev, ent); 1891 if (ret < 0) 1892 pr_err("failed to register input entity %d!\n", i); 1893 } 1894 #endif 1895 } 1896 1897 /**************************************************************************/ 1898 1899 int au0828_analog_register(struct au0828_dev *dev, 1900 struct usb_interface *interface) 1901 { 1902 int retval = -ENOMEM; 1903 struct usb_host_interface *iface_desc; 1904 struct usb_endpoint_descriptor *endpoint; 1905 int i, ret; 1906 1907 dprintk(1, "au0828_analog_register called for intf#%d!\n", 1908 interface->cur_altsetting->desc.bInterfaceNumber); 1909 1910 /* No analog TV */ 1911 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 1912 return 0; 1913 1914 /* set au0828 usb interface0 to as5 */ 1915 retval = usb_set_interface(dev->usbdev, 1916 interface->cur_altsetting->desc.bInterfaceNumber, 5); 1917 if (retval != 0) { 1918 pr_info("Failure setting usb interface0 to as5\n"); 1919 return retval; 1920 } 1921 1922 /* Figure out which endpoint has the isoc interface */ 1923 iface_desc = interface->cur_altsetting; 1924 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { 1925 endpoint = &iface_desc->endpoint[i].desc; 1926 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1927 == USB_DIR_IN) && 1928 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1929 == USB_ENDPOINT_XFER_ISOC)) { 1930 1931 /* we find our isoc in endpoint */ 1932 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize); 1933 dev->max_pkt_size = (tmp & 0x07ff) * 1934 (((tmp & 0x1800) >> 11) + 1); 1935 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress; 1936 dprintk(1, 1937 "Found isoc endpoint 0x%02x, max size = %d\n", 1938 dev->isoc_in_endpointaddr, dev->max_pkt_size); 1939 } 1940 } 1941 if (!(dev->isoc_in_endpointaddr)) { 1942 pr_info("Could not locate isoc endpoint\n"); 1943 return -ENODEV; 1944 } 1945 1946 init_waitqueue_head(&dev->open); 1947 spin_lock_init(&dev->slock); 1948 1949 /* init video dma queues */ 1950 INIT_LIST_HEAD(&dev->vidq.active); 1951 INIT_LIST_HEAD(&dev->vbiq.active); 1952 1953 timer_setup(&dev->vid_timeout, au0828_vid_buffer_timeout, 0); 1954 timer_setup(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 0); 1955 1956 dev->width = NTSC_STD_W; 1957 dev->height = NTSC_STD_H; 1958 dev->field_size = dev->width * dev->height; 1959 dev->frame_size = dev->field_size << 1; 1960 dev->bytesperline = dev->width << 1; 1961 dev->vbi_width = 720; 1962 dev->vbi_height = 1; 1963 dev->ctrl_ainput = 0; 1964 dev->ctrl_freq = 960; 1965 dev->std = V4L2_STD_NTSC_M; 1966 /* Default input is TV Tuner */ 1967 au0828_s_input(dev, 0); 1968 1969 mutex_init(&dev->vb_queue_lock); 1970 mutex_init(&dev->vb_vbi_queue_lock); 1971 1972 /* Fill the video capture device struct */ 1973 dev->vdev = au0828_video_template; 1974 dev->vdev.v4l2_dev = &dev->v4l2_dev; 1975 dev->vdev.lock = &dev->lock; 1976 dev->vdev.queue = &dev->vb_vidq; 1977 dev->vdev.queue->lock = &dev->vb_queue_lock; 1978 dev->vdev.device_caps = 1979 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | 1980 V4L2_CAP_TUNER | V4L2_CAP_VIDEO_CAPTURE; 1981 strscpy(dev->vdev.name, "au0828a video", sizeof(dev->vdev.name)); 1982 1983 /* Setup the VBI device */ 1984 dev->vbi_dev = au0828_video_template; 1985 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev; 1986 dev->vbi_dev.lock = &dev->lock; 1987 dev->vbi_dev.queue = &dev->vb_vbiq; 1988 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock; 1989 dev->vbi_dev.device_caps = 1990 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | 1991 V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE; 1992 strscpy(dev->vbi_dev.name, "au0828a vbi", sizeof(dev->vbi_dev.name)); 1993 1994 /* Init entities at the Media Controller */ 1995 au0828_analog_create_entities(dev); 1996 1997 /* initialize videobuf2 stuff */ 1998 retval = au0828_vb2_setup(dev); 1999 if (retval != 0) { 2000 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n", 2001 retval); 2002 return -ENODEV; 2003 } 2004 2005 /* Register the v4l2 device */ 2006 video_set_drvdata(&dev->vdev, dev); 2007 retval = video_register_device(&dev->vdev, VFL_TYPE_VIDEO, -1); 2008 if (retval != 0) { 2009 dprintk(1, "unable to register video device (error = %d).\n", 2010 retval); 2011 return -ENODEV; 2012 } 2013 2014 /* Register the vbi device */ 2015 video_set_drvdata(&dev->vbi_dev, dev); 2016 retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1); 2017 if (retval != 0) { 2018 dprintk(1, "unable to register vbi device (error = %d).\n", 2019 retval); 2020 ret = -ENODEV; 2021 goto err_reg_vbi_dev; 2022 } 2023 2024 #ifdef CONFIG_MEDIA_CONTROLLER 2025 retval = v4l2_mc_create_media_graph(dev->media_dev); 2026 if (retval) { 2027 pr_err("%s() au0282_dev_register failed to create graph\n", 2028 __func__); 2029 ret = -ENODEV; 2030 goto err_reg_vbi_dev; 2031 } 2032 #endif 2033 2034 dprintk(1, "%s completed!\n", __func__); 2035 2036 return 0; 2037 2038 err_reg_vbi_dev: 2039 vb2_video_unregister_device(&dev->vdev); 2040 return ret; 2041 } 2042 2043