1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Auvitek AU0828 USB Bridge (Analog video support) 4 * 5 * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org> 6 * Copyright (C) 2005-2008 Auvitek International, Ltd. 7 */ 8 9 /* Developer Notes: 10 * 11 * The hardware scaler supported is unimplemented 12 * AC97 audio support is unimplemented (only i2s audio mode) 13 * 14 */ 15 16 #include "au0828.h" 17 #include "au8522.h" 18 19 #include <linux/module.h> 20 #include <linux/slab.h> 21 #include <linux/init.h> 22 #include <linux/device.h> 23 #include <media/v4l2-common.h> 24 #include <media/v4l2-mc.h> 25 #include <media/v4l2-ioctl.h> 26 #include <media/v4l2-event.h> 27 #include <media/tuner.h> 28 #include "au0828-reg.h" 29 30 static DEFINE_MUTEX(au0828_sysfs_lock); 31 32 /* ------------------------------------------------------------------ 33 Videobuf operations 34 ------------------------------------------------------------------*/ 35 36 static unsigned int isoc_debug; 37 module_param(isoc_debug, int, 0644); 38 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); 39 40 #define au0828_isocdbg(fmt, arg...) \ 41 do {\ 42 if (isoc_debug) { \ 43 pr_info("au0828 %s :"fmt, \ 44 __func__ , ##arg); \ 45 } \ 46 } while (0) 47 48 static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val) 49 { 50 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl) 51 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val); 52 } 53 54 static inline void print_err_status(struct au0828_dev *dev, 55 int packet, int status) 56 { 57 char *errmsg = "Unknown"; 58 59 switch (status) { 60 case -ENOENT: 61 errmsg = "unlinked synchronously"; 62 break; 63 case -ECONNRESET: 64 errmsg = "unlinked asynchronously"; 65 break; 66 case -ENOSR: 67 errmsg = "Buffer error (overrun)"; 68 break; 69 case -EPIPE: 70 errmsg = "Stalled (device not responding)"; 71 break; 72 case -EOVERFLOW: 73 errmsg = "Babble (bad cable?)"; 74 break; 75 case -EPROTO: 76 errmsg = "Bit-stuff error (bad cable?)"; 77 break; 78 case -EILSEQ: 79 errmsg = "CRC/Timeout (could be anything)"; 80 break; 81 case -ETIME: 82 errmsg = "Device does not respond"; 83 break; 84 } 85 if (packet < 0) { 86 au0828_isocdbg("URB status %d [%s].\n", status, errmsg); 87 } else { 88 au0828_isocdbg("URB packet %d, status %d [%s].\n", 89 packet, status, errmsg); 90 } 91 } 92 93 static int check_dev(struct au0828_dev *dev) 94 { 95 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) { 96 pr_info("v4l2 ioctl: device not present\n"); 97 return -ENODEV; 98 } 99 100 if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) { 101 pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n"); 102 return -EIO; 103 } 104 return 0; 105 } 106 107 /* 108 * IRQ callback, called by URB callback 109 */ 110 static void au0828_irq_callback(struct urb *urb) 111 { 112 struct au0828_dmaqueue *dma_q = urb->context; 113 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 114 unsigned long flags = 0; 115 int i; 116 117 switch (urb->status) { 118 case 0: /* success */ 119 case -ETIMEDOUT: /* NAK */ 120 break; 121 case -ECONNRESET: /* kill */ 122 case -ENOENT: 123 case -ESHUTDOWN: 124 au0828_isocdbg("au0828_irq_callback called: status kill\n"); 125 return; 126 default: /* unknown error */ 127 au0828_isocdbg("urb completion error %d.\n", urb->status); 128 break; 129 } 130 131 /* Copy data from URB */ 132 spin_lock_irqsave(&dev->slock, flags); 133 dev->isoc_ctl.isoc_copy(dev, urb); 134 spin_unlock_irqrestore(&dev->slock, flags); 135 136 /* Reset urb buffers */ 137 for (i = 0; i < urb->number_of_packets; i++) { 138 urb->iso_frame_desc[i].status = 0; 139 urb->iso_frame_desc[i].actual_length = 0; 140 } 141 urb->status = 0; 142 143 urb->status = usb_submit_urb(urb, GFP_ATOMIC); 144 if (urb->status) { 145 au0828_isocdbg("urb resubmit failed (error=%i)\n", 146 urb->status); 147 } 148 dev->stream_state = STREAM_ON; 149 } 150 151 /* 152 * Stop and Deallocate URBs 153 */ 154 static void au0828_uninit_isoc(struct au0828_dev *dev) 155 { 156 struct urb *urb; 157 int i; 158 159 au0828_isocdbg("au0828: called au0828_uninit_isoc\n"); 160 161 dev->isoc_ctl.nfields = -1; 162 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 163 urb = dev->isoc_ctl.urb[i]; 164 if (urb) { 165 if (!irqs_disabled()) 166 usb_kill_urb(urb); 167 else 168 usb_unlink_urb(urb); 169 170 if (dev->isoc_ctl.transfer_buffer[i]) { 171 usb_free_coherent(dev->usbdev, 172 urb->transfer_buffer_length, 173 dev->isoc_ctl.transfer_buffer[i], 174 urb->transfer_dma); 175 } 176 usb_free_urb(urb); 177 dev->isoc_ctl.urb[i] = NULL; 178 } 179 dev->isoc_ctl.transfer_buffer[i] = NULL; 180 } 181 182 kfree(dev->isoc_ctl.urb); 183 kfree(dev->isoc_ctl.transfer_buffer); 184 185 dev->isoc_ctl.urb = NULL; 186 dev->isoc_ctl.transfer_buffer = NULL; 187 dev->isoc_ctl.num_bufs = 0; 188 189 dev->stream_state = STREAM_OFF; 190 } 191 192 /* 193 * Allocate URBs and start IRQ 194 */ 195 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets, 196 int num_bufs, int max_pkt_size, 197 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb)) 198 { 199 struct au0828_dmaqueue *dma_q = &dev->vidq; 200 int i; 201 int sb_size, pipe; 202 struct urb *urb; 203 int j, k; 204 int rc; 205 206 au0828_isocdbg("au0828: called au0828_prepare_isoc\n"); 207 208 dev->isoc_ctl.isoc_copy = isoc_copy; 209 dev->isoc_ctl.num_bufs = num_bufs; 210 211 dev->isoc_ctl.urb = kcalloc(num_bufs, sizeof(void *), GFP_KERNEL); 212 if (!dev->isoc_ctl.urb) { 213 au0828_isocdbg("cannot alloc memory for usb buffers\n"); 214 return -ENOMEM; 215 } 216 217 dev->isoc_ctl.transfer_buffer = kcalloc(num_bufs, sizeof(void *), 218 GFP_KERNEL); 219 if (!dev->isoc_ctl.transfer_buffer) { 220 au0828_isocdbg("cannot allocate memory for usb transfer\n"); 221 kfree(dev->isoc_ctl.urb); 222 return -ENOMEM; 223 } 224 225 dev->isoc_ctl.max_pkt_size = max_pkt_size; 226 dev->isoc_ctl.buf = NULL; 227 228 sb_size = max_packets * dev->isoc_ctl.max_pkt_size; 229 230 /* allocate urbs and transfer buffers */ 231 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 232 urb = usb_alloc_urb(max_packets, GFP_KERNEL); 233 if (!urb) { 234 au0828_isocdbg("cannot allocate URB\n"); 235 au0828_uninit_isoc(dev); 236 return -ENOMEM; 237 } 238 dev->isoc_ctl.urb[i] = urb; 239 240 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev, 241 sb_size, GFP_KERNEL, &urb->transfer_dma); 242 if (!dev->isoc_ctl.transfer_buffer[i]) { 243 au0828_isocdbg("cannot allocate transfer buffer\n"); 244 au0828_uninit_isoc(dev); 245 return -ENOMEM; 246 } 247 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size); 248 249 pipe = usb_rcvisocpipe(dev->usbdev, 250 dev->isoc_in_endpointaddr); 251 252 usb_fill_int_urb(urb, dev->usbdev, pipe, 253 dev->isoc_ctl.transfer_buffer[i], sb_size, 254 au0828_irq_callback, dma_q, 1); 255 256 urb->number_of_packets = max_packets; 257 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; 258 259 k = 0; 260 for (j = 0; j < max_packets; j++) { 261 urb->iso_frame_desc[j].offset = k; 262 urb->iso_frame_desc[j].length = 263 dev->isoc_ctl.max_pkt_size; 264 k += dev->isoc_ctl.max_pkt_size; 265 } 266 } 267 268 /* submit urbs and enables IRQ */ 269 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 270 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 271 if (rc) { 272 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 273 i, rc); 274 au0828_uninit_isoc(dev); 275 return rc; 276 } 277 } 278 279 return 0; 280 } 281 282 /* 283 * Announces that a buffer were filled and request the next 284 */ 285 static inline void buffer_filled(struct au0828_dev *dev, 286 struct au0828_dmaqueue *dma_q, 287 struct au0828_buffer *buf) 288 { 289 struct vb2_v4l2_buffer *vb = &buf->vb; 290 struct vb2_queue *q = vb->vb2_buf.vb2_queue; 291 292 /* Advice that buffer was filled */ 293 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field); 294 295 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 296 vb->sequence = dev->frame_count++; 297 else 298 vb->sequence = dev->vbi_frame_count++; 299 300 vb->field = V4L2_FIELD_INTERLACED; 301 vb->vb2_buf.timestamp = ktime_get_ns(); 302 vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE); 303 } 304 305 /* 306 * Identify the buffer header type and properly handles 307 */ 308 static void au0828_copy_video(struct au0828_dev *dev, 309 struct au0828_dmaqueue *dma_q, 310 struct au0828_buffer *buf, 311 unsigned char *p, 312 unsigned char *outp, unsigned long len) 313 { 314 void *fieldstart, *startwrite, *startread; 315 int linesdone, currlinedone, offset, lencopy, remain; 316 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */ 317 318 if (len == 0) 319 return; 320 321 if (dma_q->pos + len > buf->length) 322 len = buf->length - dma_q->pos; 323 324 startread = p; 325 remain = len; 326 327 /* Interlaces frame */ 328 if (buf->top_field) 329 fieldstart = outp; 330 else 331 fieldstart = outp + bytesperline; 332 333 linesdone = dma_q->pos / bytesperline; 334 currlinedone = dma_q->pos % bytesperline; 335 offset = linesdone * bytesperline * 2 + currlinedone; 336 startwrite = fieldstart + offset; 337 lencopy = bytesperline - currlinedone; 338 lencopy = lencopy > remain ? remain : lencopy; 339 340 if ((char *)startwrite + lencopy > (char *)outp + buf->length) { 341 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n", 342 ((char *)startwrite + lencopy) - 343 ((char *)outp + buf->length)); 344 remain = (char *)outp + buf->length - (char *)startwrite; 345 lencopy = remain; 346 } 347 if (lencopy <= 0) 348 return; 349 memcpy(startwrite, startread, lencopy); 350 351 remain -= lencopy; 352 353 while (remain > 0) { 354 startwrite += lencopy + bytesperline; 355 startread += lencopy; 356 if (bytesperline > remain) 357 lencopy = remain; 358 else 359 lencopy = bytesperline; 360 361 if ((char *)startwrite + lencopy > (char *)outp + 362 buf->length) { 363 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n", 364 ((char *)startwrite + lencopy) - 365 ((char *)outp + buf->length)); 366 lencopy = remain = (char *)outp + buf->length - 367 (char *)startwrite; 368 } 369 if (lencopy <= 0) 370 break; 371 372 memcpy(startwrite, startread, lencopy); 373 374 remain -= lencopy; 375 } 376 377 if (offset > 1440) { 378 /* We have enough data to check for greenscreen */ 379 if (outp[0] < 0x60 && outp[1440] < 0x60) 380 dev->greenscreen_detected = 1; 381 } 382 383 dma_q->pos += len; 384 } 385 386 /* 387 * generic routine to get the next available buffer 388 */ 389 static inline void get_next_buf(struct au0828_dmaqueue *dma_q, 390 struct au0828_buffer **buf) 391 { 392 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 393 394 if (list_empty(&dma_q->active)) { 395 au0828_isocdbg("No active queue to serve\n"); 396 dev->isoc_ctl.buf = NULL; 397 *buf = NULL; 398 return; 399 } 400 401 /* Get the next buffer */ 402 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 403 /* Cleans up buffer - Useful for testing for frame/URB loss */ 404 list_del(&(*buf)->list); 405 dma_q->pos = 0; 406 (*buf)->vb_buf = (*buf)->mem; 407 dev->isoc_ctl.buf = *buf; 408 409 return; 410 } 411 412 static void au0828_copy_vbi(struct au0828_dev *dev, 413 struct au0828_dmaqueue *dma_q, 414 struct au0828_buffer *buf, 415 unsigned char *p, 416 unsigned char *outp, unsigned long len) 417 { 418 unsigned char *startwrite, *startread; 419 int bytesperline; 420 int i, j = 0; 421 422 if (dev == NULL) { 423 au0828_isocdbg("dev is null\n"); 424 return; 425 } 426 427 if (dma_q == NULL) { 428 au0828_isocdbg("dma_q is null\n"); 429 return; 430 } 431 if (buf == NULL) 432 return; 433 if (p == NULL) { 434 au0828_isocdbg("p is null\n"); 435 return; 436 } 437 if (outp == NULL) { 438 au0828_isocdbg("outp is null\n"); 439 return; 440 } 441 442 bytesperline = dev->vbi_width; 443 444 if (dma_q->pos + len > buf->length) 445 len = buf->length - dma_q->pos; 446 447 startread = p; 448 startwrite = outp + (dma_q->pos / 2); 449 450 /* Make sure the bottom field populates the second half of the frame */ 451 if (buf->top_field == 0) 452 startwrite += bytesperline * dev->vbi_height; 453 454 for (i = 0; i < len; i += 2) 455 startwrite[j++] = startread[i+1]; 456 457 dma_q->pos += len; 458 } 459 460 461 /* 462 * generic routine to get the next available VBI buffer 463 */ 464 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q, 465 struct au0828_buffer **buf) 466 { 467 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq); 468 469 if (list_empty(&dma_q->active)) { 470 au0828_isocdbg("No active queue to serve\n"); 471 dev->isoc_ctl.vbi_buf = NULL; 472 *buf = NULL; 473 return; 474 } 475 476 /* Get the next buffer */ 477 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 478 /* Cleans up buffer - Useful for testing for frame/URB loss */ 479 list_del(&(*buf)->list); 480 dma_q->pos = 0; 481 (*buf)->vb_buf = (*buf)->mem; 482 dev->isoc_ctl.vbi_buf = *buf; 483 return; 484 } 485 486 /* 487 * Controls the isoc copy of each urb packet 488 */ 489 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb) 490 { 491 struct au0828_buffer *buf; 492 struct au0828_buffer *vbi_buf; 493 struct au0828_dmaqueue *dma_q = urb->context; 494 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq; 495 unsigned char *outp = NULL; 496 unsigned char *vbioutp = NULL; 497 int i, len = 0, rc = 1; 498 unsigned char *p; 499 unsigned char fbyte; 500 unsigned int vbi_field_size; 501 unsigned int remain, lencopy; 502 503 if (!dev) 504 return 0; 505 506 if (test_bit(DEV_DISCONNECTED, &dev->dev_state) || 507 test_bit(DEV_MISCONFIGURED, &dev->dev_state)) 508 return 0; 509 510 if (urb->status < 0) { 511 print_err_status(dev, -1, urb->status); 512 if (urb->status == -ENOENT) 513 return 0; 514 } 515 516 buf = dev->isoc_ctl.buf; 517 if (buf != NULL) 518 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 519 520 vbi_buf = dev->isoc_ctl.vbi_buf; 521 if (vbi_buf != NULL) 522 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0); 523 524 for (i = 0; i < urb->number_of_packets; i++) { 525 int status = urb->iso_frame_desc[i].status; 526 527 if (status < 0) { 528 print_err_status(dev, i, status); 529 if (urb->iso_frame_desc[i].status != -EPROTO) 530 continue; 531 } 532 533 if (urb->iso_frame_desc[i].actual_length <= 0) 534 continue; 535 536 if (urb->iso_frame_desc[i].actual_length > 537 dev->max_pkt_size) { 538 au0828_isocdbg("packet bigger than packet size"); 539 continue; 540 } 541 542 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset; 543 fbyte = p[0]; 544 len = urb->iso_frame_desc[i].actual_length - 4; 545 p += 4; 546 547 if (fbyte & 0x80) { 548 len -= 4; 549 p += 4; 550 au0828_isocdbg("Video frame %s\n", 551 (fbyte & 0x40) ? "odd" : "even"); 552 if (fbyte & 0x40) { 553 /* VBI */ 554 if (vbi_buf != NULL) 555 buffer_filled(dev, vbi_dma_q, vbi_buf); 556 vbi_get_next_buf(vbi_dma_q, &vbi_buf); 557 if (vbi_buf == NULL) 558 vbioutp = NULL; 559 else 560 vbioutp = vb2_plane_vaddr( 561 &vbi_buf->vb.vb2_buf, 0); 562 563 /* Video */ 564 if (buf != NULL) 565 buffer_filled(dev, dma_q, buf); 566 get_next_buf(dma_q, &buf); 567 if (buf == NULL) 568 outp = NULL; 569 else 570 outp = vb2_plane_vaddr( 571 &buf->vb.vb2_buf, 0); 572 573 /* As long as isoc traffic is arriving, keep 574 resetting the timer */ 575 if (dev->vid_timeout_running) 576 mod_timer(&dev->vid_timeout, 577 jiffies + (HZ / 10)); 578 if (dev->vbi_timeout_running) 579 mod_timer(&dev->vbi_timeout, 580 jiffies + (HZ / 10)); 581 } 582 583 if (buf != NULL) { 584 if (fbyte & 0x40) 585 buf->top_field = 1; 586 else 587 buf->top_field = 0; 588 } 589 590 if (vbi_buf != NULL) { 591 if (fbyte & 0x40) 592 vbi_buf->top_field = 1; 593 else 594 vbi_buf->top_field = 0; 595 } 596 597 dev->vbi_read = 0; 598 vbi_dma_q->pos = 0; 599 dma_q->pos = 0; 600 } 601 602 vbi_field_size = dev->vbi_width * dev->vbi_height * 2; 603 if (dev->vbi_read < vbi_field_size) { 604 remain = vbi_field_size - dev->vbi_read; 605 if (len < remain) 606 lencopy = len; 607 else 608 lencopy = remain; 609 610 if (vbi_buf != NULL) 611 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p, 612 vbioutp, len); 613 614 len -= lencopy; 615 p += lencopy; 616 dev->vbi_read += lencopy; 617 } 618 619 if (dev->vbi_read >= vbi_field_size && buf != NULL) 620 au0828_copy_video(dev, dma_q, buf, p, outp, len); 621 } 622 return rc; 623 } 624 625 void au0828_usb_v4l2_media_release(struct au0828_dev *dev) 626 { 627 #ifdef CONFIG_MEDIA_CONTROLLER 628 int i; 629 630 for (i = 0; i < AU0828_MAX_INPUT; i++) { 631 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) 632 return; 633 media_device_unregister_entity(&dev->input_ent[i]); 634 } 635 #endif 636 } 637 638 static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev) 639 { 640 struct au0828_dev *dev = 641 container_of(v4l2_dev, struct au0828_dev, v4l2_dev); 642 643 v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl); 644 v4l2_device_unregister(&dev->v4l2_dev); 645 au0828_usb_v4l2_media_release(dev); 646 au0828_usb_release(dev); 647 } 648 649 int au0828_v4l2_device_register(struct usb_interface *interface, 650 struct au0828_dev *dev) 651 { 652 int retval; 653 654 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 655 return 0; 656 657 /* Create the v4l2_device */ 658 #ifdef CONFIG_MEDIA_CONTROLLER 659 dev->v4l2_dev.mdev = dev->media_dev; 660 #endif 661 retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev); 662 if (retval) { 663 pr_err("%s() v4l2_device_register failed\n", 664 __func__); 665 return retval; 666 } 667 668 dev->v4l2_dev.release = au0828_usb_v4l2_release; 669 670 /* This control handler will inherit the controls from au8522 */ 671 retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4); 672 if (retval) { 673 pr_err("%s() v4l2_ctrl_handler_init failed\n", 674 __func__); 675 return retval; 676 } 677 dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl; 678 679 return 0; 680 } 681 682 static int queue_setup(struct vb2_queue *vq, 683 unsigned int *nbuffers, unsigned int *nplanes, 684 unsigned int sizes[], struct device *alloc_devs[]) 685 { 686 struct au0828_dev *dev = vb2_get_drv_priv(vq); 687 unsigned long size = dev->height * dev->bytesperline; 688 689 if (*nplanes) 690 return sizes[0] < size ? -EINVAL : 0; 691 *nplanes = 1; 692 sizes[0] = size; 693 return 0; 694 } 695 696 static int 697 buffer_prepare(struct vb2_buffer *vb) 698 { 699 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 700 struct au0828_buffer *buf = container_of(vbuf, 701 struct au0828_buffer, vb); 702 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 703 704 buf->length = dev->height * dev->bytesperline; 705 706 if (vb2_plane_size(vb, 0) < buf->length) { 707 pr_err("%s data will not fit into plane (%lu < %lu)\n", 708 __func__, vb2_plane_size(vb, 0), buf->length); 709 return -EINVAL; 710 } 711 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length); 712 return 0; 713 } 714 715 static void 716 buffer_queue(struct vb2_buffer *vb) 717 { 718 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 719 struct au0828_buffer *buf = container_of(vbuf, 720 struct au0828_buffer, 721 vb); 722 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 723 struct au0828_dmaqueue *vidq = &dev->vidq; 724 unsigned long flags = 0; 725 726 buf->mem = vb2_plane_vaddr(vb, 0); 727 buf->length = vb2_plane_size(vb, 0); 728 729 spin_lock_irqsave(&dev->slock, flags); 730 list_add_tail(&buf->list, &vidq->active); 731 spin_unlock_irqrestore(&dev->slock, flags); 732 } 733 734 static int au0828_i2s_init(struct au0828_dev *dev) 735 { 736 /* Enable i2s mode */ 737 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01); 738 return 0; 739 } 740 741 /* 742 * Auvitek au0828 analog stream enable 743 */ 744 static int au0828_analog_stream_enable(struct au0828_dev *d) 745 { 746 struct usb_interface *iface; 747 int ret, h, w; 748 749 dprintk(1, "au0828_analog_stream_enable called\n"); 750 751 if (test_bit(DEV_DISCONNECTED, &d->dev_state)) 752 return -ENODEV; 753 754 iface = usb_ifnum_to_if(d->usbdev, 0); 755 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) { 756 dprintk(1, "Changing intf#0 to alt 5\n"); 757 /* set au0828 interface0 to AS5 here again */ 758 ret = usb_set_interface(d->usbdev, 0, 5); 759 if (ret < 0) { 760 pr_info("Au0828 can't set alt setting to 5!\n"); 761 return -EBUSY; 762 } 763 } 764 765 h = d->height / 2 + 2; 766 w = d->width * 2; 767 768 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00); 769 au0828_writereg(d, 0x106, 0x00); 770 /* set x position */ 771 au0828_writereg(d, 0x110, 0x00); 772 au0828_writereg(d, 0x111, 0x00); 773 au0828_writereg(d, 0x114, w & 0xff); 774 au0828_writereg(d, 0x115, w >> 8); 775 /* set y position */ 776 au0828_writereg(d, 0x112, 0x00); 777 au0828_writereg(d, 0x113, 0x00); 778 au0828_writereg(d, 0x116, h & 0xff); 779 au0828_writereg(d, 0x117, h >> 8); 780 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3); 781 782 return 0; 783 } 784 785 static int au0828_analog_stream_disable(struct au0828_dev *d) 786 { 787 dprintk(1, "au0828_analog_stream_disable called\n"); 788 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0); 789 return 0; 790 } 791 792 static void au0828_analog_stream_reset(struct au0828_dev *dev) 793 { 794 dprintk(1, "au0828_analog_stream_reset called\n"); 795 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0); 796 mdelay(30); 797 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3); 798 } 799 800 /* 801 * Some operations needs to stop current streaming 802 */ 803 static int au0828_stream_interrupt(struct au0828_dev *dev) 804 { 805 dev->stream_state = STREAM_INTERRUPT; 806 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) 807 return -ENODEV; 808 return 0; 809 } 810 811 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count) 812 { 813 struct au0828_dev *dev = vb2_get_drv_priv(vq); 814 int rc = 0; 815 816 dprintk(1, "au0828_start_analog_streaming called %d\n", 817 dev->streaming_users); 818 819 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 820 dev->frame_count = 0; 821 else 822 dev->vbi_frame_count = 0; 823 824 if (dev->streaming_users == 0) { 825 /* If we were doing ac97 instead of i2s, it would go here...*/ 826 au0828_i2s_init(dev); 827 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB, 828 AU0828_MAX_ISO_BUFS, dev->max_pkt_size, 829 au0828_isoc_copy); 830 if (rc < 0) { 831 pr_info("au0828_init_isoc failed\n"); 832 return rc; 833 } 834 835 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 1); 836 837 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 838 dev->vid_timeout_running = 1; 839 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 840 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 841 dev->vbi_timeout_running = 1; 842 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 843 } 844 } 845 dev->streaming_users++; 846 return rc; 847 } 848 849 static void au0828_stop_streaming(struct vb2_queue *vq) 850 { 851 struct au0828_dev *dev = vb2_get_drv_priv(vq); 852 struct au0828_dmaqueue *vidq = &dev->vidq; 853 unsigned long flags = 0; 854 855 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users); 856 857 if (dev->streaming_users-- == 1) { 858 au0828_uninit_isoc(dev); 859 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 860 } 861 862 dev->vid_timeout_running = 0; 863 del_timer_sync(&dev->vid_timeout); 864 865 spin_lock_irqsave(&dev->slock, flags); 866 if (dev->isoc_ctl.buf != NULL) { 867 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf, 868 VB2_BUF_STATE_ERROR); 869 dev->isoc_ctl.buf = NULL; 870 } 871 while (!list_empty(&vidq->active)) { 872 struct au0828_buffer *buf; 873 874 buf = list_entry(vidq->active.next, struct au0828_buffer, list); 875 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 876 list_del(&buf->list); 877 } 878 spin_unlock_irqrestore(&dev->slock, flags); 879 } 880 881 void au0828_stop_vbi_streaming(struct vb2_queue *vq) 882 { 883 struct au0828_dev *dev = vb2_get_drv_priv(vq); 884 struct au0828_dmaqueue *vbiq = &dev->vbiq; 885 unsigned long flags = 0; 886 887 dprintk(1, "au0828_stop_vbi_streaming called %d\n", 888 dev->streaming_users); 889 890 if (dev->streaming_users-- == 1) { 891 au0828_uninit_isoc(dev); 892 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 893 } 894 895 spin_lock_irqsave(&dev->slock, flags); 896 if (dev->isoc_ctl.vbi_buf != NULL) { 897 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf, 898 VB2_BUF_STATE_ERROR); 899 dev->isoc_ctl.vbi_buf = NULL; 900 } 901 while (!list_empty(&vbiq->active)) { 902 struct au0828_buffer *buf; 903 904 buf = list_entry(vbiq->active.next, struct au0828_buffer, list); 905 list_del(&buf->list); 906 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 907 } 908 spin_unlock_irqrestore(&dev->slock, flags); 909 910 dev->vbi_timeout_running = 0; 911 del_timer_sync(&dev->vbi_timeout); 912 } 913 914 static const struct vb2_ops au0828_video_qops = { 915 .queue_setup = queue_setup, 916 .buf_prepare = buffer_prepare, 917 .buf_queue = buffer_queue, 918 .start_streaming = au0828_start_analog_streaming, 919 .stop_streaming = au0828_stop_streaming, 920 .wait_prepare = vb2_ops_wait_prepare, 921 .wait_finish = vb2_ops_wait_finish, 922 }; 923 924 /* ------------------------------------------------------------------ 925 V4L2 interface 926 ------------------------------------------------------------------*/ 927 /* 928 * au0828_analog_unregister 929 * unregister v4l2 devices 930 */ 931 int au0828_analog_unregister(struct au0828_dev *dev) 932 { 933 dprintk(1, "au0828_analog_unregister called\n"); 934 935 /* No analog TV */ 936 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 937 return 0; 938 939 mutex_lock(&au0828_sysfs_lock); 940 vb2_video_unregister_device(&dev->vdev); 941 vb2_video_unregister_device(&dev->vbi_dev); 942 mutex_unlock(&au0828_sysfs_lock); 943 944 v4l2_device_disconnect(&dev->v4l2_dev); 945 v4l2_device_put(&dev->v4l2_dev); 946 947 return 1; 948 } 949 950 /* This function ensures that video frames continue to be delivered even if 951 the ITU-656 input isn't receiving any data (thereby preventing applications 952 such as tvtime from hanging) */ 953 static void au0828_vid_buffer_timeout(struct timer_list *t) 954 { 955 struct au0828_dev *dev = from_timer(dev, t, vid_timeout); 956 struct au0828_dmaqueue *dma_q = &dev->vidq; 957 struct au0828_buffer *buf; 958 unsigned char *vid_data; 959 unsigned long flags = 0; 960 961 spin_lock_irqsave(&dev->slock, flags); 962 963 buf = dev->isoc_ctl.buf; 964 if (buf != NULL) { 965 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 966 memset(vid_data, 0x00, buf->length); /* Blank green frame */ 967 buffer_filled(dev, dma_q, buf); 968 } 969 get_next_buf(dma_q, &buf); 970 971 if (dev->vid_timeout_running == 1) 972 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 973 974 spin_unlock_irqrestore(&dev->slock, flags); 975 } 976 977 static void au0828_vbi_buffer_timeout(struct timer_list *t) 978 { 979 struct au0828_dev *dev = from_timer(dev, t, vbi_timeout); 980 struct au0828_dmaqueue *dma_q = &dev->vbiq; 981 struct au0828_buffer *buf; 982 unsigned char *vbi_data; 983 unsigned long flags = 0; 984 985 spin_lock_irqsave(&dev->slock, flags); 986 987 buf = dev->isoc_ctl.vbi_buf; 988 if (buf != NULL) { 989 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 990 memset(vbi_data, 0x00, buf->length); 991 buffer_filled(dev, dma_q, buf); 992 } 993 vbi_get_next_buf(dma_q, &buf); 994 995 if (dev->vbi_timeout_running == 1) 996 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 997 spin_unlock_irqrestore(&dev->slock, flags); 998 } 999 1000 static int au0828_v4l2_open(struct file *filp) 1001 { 1002 struct au0828_dev *dev = video_drvdata(filp); 1003 int ret; 1004 1005 dprintk(1, 1006 "%s called std_set %d dev_state %ld stream users %d users %d\n", 1007 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1008 dev->streaming_users, dev->users); 1009 1010 if (mutex_lock_interruptible(&dev->lock)) 1011 return -ERESTARTSYS; 1012 1013 ret = v4l2_fh_open(filp); 1014 if (ret) { 1015 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n", 1016 __func__, ret); 1017 mutex_unlock(&dev->lock); 1018 return ret; 1019 } 1020 1021 if (dev->users == 0) { 1022 au0828_analog_stream_enable(dev); 1023 au0828_analog_stream_reset(dev); 1024 dev->stream_state = STREAM_OFF; 1025 set_bit(DEV_INITIALIZED, &dev->dev_state); 1026 } 1027 dev->users++; 1028 mutex_unlock(&dev->lock); 1029 return ret; 1030 } 1031 1032 static int au0828_v4l2_close(struct file *filp) 1033 { 1034 int ret; 1035 struct au0828_dev *dev = video_drvdata(filp); 1036 struct video_device *vdev = video_devdata(filp); 1037 1038 dprintk(1, 1039 "%s called std_set %d dev_state %ld stream users %d users %d\n", 1040 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1041 dev->streaming_users, dev->users); 1042 1043 mutex_lock(&dev->lock); 1044 if (vdev->vfl_type == VFL_TYPE_VIDEO && dev->vid_timeout_running) { 1045 /* Cancel timeout thread in case they didn't call streamoff */ 1046 dev->vid_timeout_running = 0; 1047 del_timer_sync(&dev->vid_timeout); 1048 } else if (vdev->vfl_type == VFL_TYPE_VBI && 1049 dev->vbi_timeout_running) { 1050 /* Cancel timeout thread in case they didn't call streamoff */ 1051 dev->vbi_timeout_running = 0; 1052 del_timer_sync(&dev->vbi_timeout); 1053 } 1054 1055 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) 1056 goto end; 1057 1058 if (dev->users == 1) { 1059 /* 1060 * Avoid putting tuner in sleep if DVB or ALSA are 1061 * streaming. 1062 * 1063 * On most USB devices like au0828 the tuner can 1064 * be safely put in sleep state here if ALSA isn't 1065 * streaming. Exceptions are some very old USB tuner 1066 * models such as em28xx-based WinTV USB2 which have 1067 * a separate audio output jack. The devices that have 1068 * a separate audio output jack have analog tuners, 1069 * like Philips FM1236. Those devices are always on, 1070 * so the s_power callback are silently ignored. 1071 * So, the current logic here does the following: 1072 * Disable (put tuner to sleep) when 1073 * - ALSA and DVB aren't streaming. 1074 * - the last V4L2 file handler is closed. 1075 * 1076 * FIXME: 1077 * 1078 * Additionally, this logic could be improved to 1079 * disable the media source if the above conditions 1080 * are met and if the device: 1081 * - doesn't have a separate audio out plug (or 1082 * - doesn't use a silicon tuner like xc2028/3028/4000/5000). 1083 * 1084 * Once this additional logic is in place, a callback 1085 * is needed to enable the media source and power on 1086 * the tuner, for radio to work. 1087 */ 1088 ret = v4l_enable_media_source(vdev); 1089 if (ret == 0) 1090 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, 1091 standby); 1092 dev->std_set_in_tuner_core = 0; 1093 1094 /* When close the device, set the usb intf0 into alt0 to free 1095 USB bandwidth */ 1096 ret = usb_set_interface(dev->usbdev, 0, 0); 1097 if (ret < 0) 1098 pr_info("Au0828 can't set alternate to 0!\n"); 1099 } 1100 end: 1101 _vb2_fop_release(filp, NULL); 1102 dev->users--; 1103 mutex_unlock(&dev->lock); 1104 return 0; 1105 } 1106 1107 /* Must be called with dev->lock held */ 1108 static void au0828_init_tuner(struct au0828_dev *dev) 1109 { 1110 struct v4l2_frequency f = { 1111 .frequency = dev->ctrl_freq, 1112 .type = V4L2_TUNER_ANALOG_TV, 1113 }; 1114 1115 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1116 dev->std_set_in_tuner_core, dev->dev_state); 1117 1118 if (dev->std_set_in_tuner_core) 1119 return; 1120 dev->std_set_in_tuner_core = 1; 1121 i2c_gate_ctrl(dev, 1); 1122 /* If we've never sent the standard in tuner core, do so now. 1123 We don't do this at device probe because we don't want to 1124 incur the cost of a firmware load */ 1125 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std); 1126 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 1127 i2c_gate_ctrl(dev, 0); 1128 } 1129 1130 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd, 1131 struct v4l2_format *format) 1132 { 1133 int ret; 1134 int width = format->fmt.pix.width; 1135 int height = format->fmt.pix.height; 1136 1137 /* If they are demanding a format other than the one we support, 1138 bail out (tvtime asks for UYVY and then retries with YUYV) */ 1139 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY) 1140 return -EINVAL; 1141 1142 /* format->fmt.pix.width only support 720 and height 480 */ 1143 if (width != 720) 1144 width = 720; 1145 if (height != 480) 1146 height = 480; 1147 1148 format->fmt.pix.width = width; 1149 format->fmt.pix.height = height; 1150 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1151 format->fmt.pix.bytesperline = width * 2; 1152 format->fmt.pix.sizeimage = width * height * 2; 1153 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1154 format->fmt.pix.field = V4L2_FIELD_INTERLACED; 1155 1156 if (cmd == VIDIOC_TRY_FMT) 1157 return 0; 1158 1159 /* maybe set new image format, driver current only support 720*480 */ 1160 dev->width = width; 1161 dev->height = height; 1162 dev->frame_size = width * height * 2; 1163 dev->field_size = width * height; 1164 dev->bytesperline = width * 2; 1165 1166 if (dev->stream_state == STREAM_ON) { 1167 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n"); 1168 ret = au0828_stream_interrupt(dev); 1169 if (ret != 0) { 1170 dprintk(1, "error interrupting video stream!\n"); 1171 return ret; 1172 } 1173 } 1174 1175 au0828_analog_stream_enable(dev); 1176 1177 return 0; 1178 } 1179 1180 static int vidioc_querycap(struct file *file, void *priv, 1181 struct v4l2_capability *cap) 1182 { 1183 struct au0828_dev *dev = video_drvdata(file); 1184 1185 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1186 dev->std_set_in_tuner_core, dev->dev_state); 1187 1188 strscpy(cap->driver, "au0828", sizeof(cap->driver)); 1189 strscpy(cap->card, dev->board.name, sizeof(cap->card)); 1190 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info)); 1191 1192 /* set the device capabilities */ 1193 cap->capabilities = 1194 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | 1195 V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE | 1196 V4L2_CAP_DEVICE_CAPS; 1197 return 0; 1198 } 1199 1200 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1201 struct v4l2_fmtdesc *f) 1202 { 1203 if (f->index) 1204 return -EINVAL; 1205 1206 dprintk(1, "%s called\n", __func__); 1207 1208 f->pixelformat = V4L2_PIX_FMT_UYVY; 1209 1210 return 0; 1211 } 1212 1213 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 1214 struct v4l2_format *f) 1215 { 1216 struct au0828_dev *dev = video_drvdata(file); 1217 1218 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1219 dev->std_set_in_tuner_core, dev->dev_state); 1220 1221 f->fmt.pix.width = dev->width; 1222 f->fmt.pix.height = dev->height; 1223 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1224 f->fmt.pix.bytesperline = dev->bytesperline; 1225 f->fmt.pix.sizeimage = dev->frame_size; 1226 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */ 1227 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 1228 return 0; 1229 } 1230 1231 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 1232 struct v4l2_format *f) 1233 { 1234 struct au0828_dev *dev = video_drvdata(file); 1235 1236 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1237 dev->std_set_in_tuner_core, dev->dev_state); 1238 1239 return au0828_set_format(dev, VIDIOC_TRY_FMT, f); 1240 } 1241 1242 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1243 struct v4l2_format *f) 1244 { 1245 struct au0828_dev *dev = video_drvdata(file); 1246 int rc; 1247 1248 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1249 dev->std_set_in_tuner_core, dev->dev_state); 1250 1251 rc = check_dev(dev); 1252 if (rc < 0) 1253 return rc; 1254 1255 if (vb2_is_busy(&dev->vb_vidq)) { 1256 pr_info("%s queue busy\n", __func__); 1257 rc = -EBUSY; 1258 goto out; 1259 } 1260 1261 rc = au0828_set_format(dev, VIDIOC_S_FMT, f); 1262 out: 1263 return rc; 1264 } 1265 1266 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) 1267 { 1268 struct au0828_dev *dev = video_drvdata(file); 1269 1270 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1271 dev->std_set_in_tuner_core, dev->dev_state); 1272 1273 if (norm == dev->std) 1274 return 0; 1275 1276 if (dev->streaming_users > 0) 1277 return -EBUSY; 1278 1279 dev->std = norm; 1280 1281 au0828_init_tuner(dev); 1282 1283 i2c_gate_ctrl(dev, 1); 1284 1285 /* 1286 * FIXME: when we support something other than 60Hz standards, 1287 * we are going to have to make the au0828 bridge adjust the size 1288 * of its capture buffer, which is currently hardcoded at 720x480 1289 */ 1290 1291 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm); 1292 1293 i2c_gate_ctrl(dev, 0); 1294 1295 return 0; 1296 } 1297 1298 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) 1299 { 1300 struct au0828_dev *dev = video_drvdata(file); 1301 1302 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1303 dev->std_set_in_tuner_core, dev->dev_state); 1304 1305 *norm = dev->std; 1306 return 0; 1307 } 1308 1309 static int vidioc_enum_input(struct file *file, void *priv, 1310 struct v4l2_input *input) 1311 { 1312 struct au0828_dev *dev = video_drvdata(file); 1313 unsigned int tmp; 1314 1315 static const char *inames[] = { 1316 [AU0828_VMUX_UNDEFINED] = "Undefined", 1317 [AU0828_VMUX_COMPOSITE] = "Composite", 1318 [AU0828_VMUX_SVIDEO] = "S-Video", 1319 [AU0828_VMUX_CABLE] = "Cable TV", 1320 [AU0828_VMUX_TELEVISION] = "Television", 1321 [AU0828_VMUX_DVB] = "DVB", 1322 }; 1323 1324 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1325 dev->std_set_in_tuner_core, dev->dev_state); 1326 1327 tmp = input->index; 1328 1329 if (tmp >= AU0828_MAX_INPUT) 1330 return -EINVAL; 1331 if (AUVI_INPUT(tmp).type == 0) 1332 return -EINVAL; 1333 1334 input->index = tmp; 1335 strscpy(input->name, inames[AUVI_INPUT(tmp).type], sizeof(input->name)); 1336 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) || 1337 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) { 1338 input->type |= V4L2_INPUT_TYPE_TUNER; 1339 input->audioset = 1; 1340 } else { 1341 input->type |= V4L2_INPUT_TYPE_CAMERA; 1342 input->audioset = 2; 1343 } 1344 1345 input->std = dev->vdev.tvnorms; 1346 1347 return 0; 1348 } 1349 1350 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1351 { 1352 struct au0828_dev *dev = video_drvdata(file); 1353 1354 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1355 dev->std_set_in_tuner_core, dev->dev_state); 1356 1357 *i = dev->ctrl_input; 1358 return 0; 1359 } 1360 1361 static void au0828_s_input(struct au0828_dev *dev, int index) 1362 { 1363 int i; 1364 1365 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1366 dev->std_set_in_tuner_core, dev->dev_state); 1367 1368 switch (AUVI_INPUT(index).type) { 1369 case AU0828_VMUX_SVIDEO: 1370 dev->input_type = AU0828_VMUX_SVIDEO; 1371 dev->ctrl_ainput = 1; 1372 break; 1373 case AU0828_VMUX_COMPOSITE: 1374 dev->input_type = AU0828_VMUX_COMPOSITE; 1375 dev->ctrl_ainput = 1; 1376 break; 1377 case AU0828_VMUX_TELEVISION: 1378 dev->input_type = AU0828_VMUX_TELEVISION; 1379 dev->ctrl_ainput = 0; 1380 break; 1381 default: 1382 dprintk(1, "unknown input type set [%d]\n", 1383 AUVI_INPUT(index).type); 1384 return; 1385 } 1386 1387 dev->ctrl_input = index; 1388 1389 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 1390 AUVI_INPUT(index).vmux, 0, 0); 1391 1392 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1393 int enable = 0; 1394 if (AUVI_INPUT(i).audio_setup == NULL) 1395 continue; 1396 1397 if (i == index) 1398 enable = 1; 1399 else 1400 enable = 0; 1401 if (enable) { 1402 (AUVI_INPUT(i).audio_setup)(dev, enable); 1403 } else { 1404 /* Make sure we leave it turned on if some 1405 other input is routed to this callback */ 1406 if ((AUVI_INPUT(i).audio_setup) != 1407 ((AUVI_INPUT(index).audio_setup))) { 1408 (AUVI_INPUT(i).audio_setup)(dev, enable); 1409 } 1410 } 1411 } 1412 1413 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 1414 AUVI_INPUT(index).amux, 0, 0); 1415 } 1416 1417 static int vidioc_s_input(struct file *file, void *priv, unsigned int index) 1418 { 1419 struct au0828_dev *dev = video_drvdata(file); 1420 struct video_device *vfd = video_devdata(file); 1421 1422 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__, 1423 index); 1424 if (index >= AU0828_MAX_INPUT) 1425 return -EINVAL; 1426 if (AUVI_INPUT(index).type == 0) 1427 return -EINVAL; 1428 1429 if (dev->ctrl_input == index) 1430 return 0; 1431 1432 au0828_s_input(dev, index); 1433 1434 /* 1435 * Input has been changed. Disable the media source 1436 * associated with the old input and enable source 1437 * for the newly set input 1438 */ 1439 v4l_disable_media_source(vfd); 1440 return v4l_enable_media_source(vfd); 1441 } 1442 1443 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a) 1444 { 1445 if (a->index > 1) 1446 return -EINVAL; 1447 1448 dprintk(1, "%s called\n", __func__); 1449 1450 if (a->index == 0) 1451 strscpy(a->name, "Television", sizeof(a->name)); 1452 else 1453 strscpy(a->name, "Line in", sizeof(a->name)); 1454 1455 a->capability = V4L2_AUDCAP_STEREO; 1456 return 0; 1457 } 1458 1459 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 1460 { 1461 struct au0828_dev *dev = video_drvdata(file); 1462 1463 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1464 dev->std_set_in_tuner_core, dev->dev_state); 1465 1466 a->index = dev->ctrl_ainput; 1467 if (a->index == 0) 1468 strscpy(a->name, "Television", sizeof(a->name)); 1469 else 1470 strscpy(a->name, "Line in", sizeof(a->name)); 1471 1472 a->capability = V4L2_AUDCAP_STEREO; 1473 return 0; 1474 } 1475 1476 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 1477 { 1478 struct au0828_dev *dev = video_drvdata(file); 1479 1480 if (a->index != dev->ctrl_ainput) 1481 return -EINVAL; 1482 1483 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1484 dev->std_set_in_tuner_core, dev->dev_state); 1485 return 0; 1486 } 1487 1488 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1489 { 1490 struct au0828_dev *dev = video_drvdata(file); 1491 struct video_device *vfd = video_devdata(file); 1492 int ret; 1493 1494 if (t->index != 0) 1495 return -EINVAL; 1496 1497 ret = v4l_enable_media_source(vfd); 1498 if (ret) 1499 return ret; 1500 1501 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1502 dev->std_set_in_tuner_core, dev->dev_state); 1503 1504 strscpy(t->name, "Auvitek tuner", sizeof(t->name)); 1505 1506 au0828_init_tuner(dev); 1507 i2c_gate_ctrl(dev, 1); 1508 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 1509 i2c_gate_ctrl(dev, 0); 1510 return 0; 1511 } 1512 1513 static int vidioc_s_tuner(struct file *file, void *priv, 1514 const struct v4l2_tuner *t) 1515 { 1516 struct au0828_dev *dev = video_drvdata(file); 1517 1518 if (t->index != 0) 1519 return -EINVAL; 1520 1521 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1522 dev->std_set_in_tuner_core, dev->dev_state); 1523 1524 au0828_init_tuner(dev); 1525 i2c_gate_ctrl(dev, 1); 1526 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 1527 i2c_gate_ctrl(dev, 0); 1528 1529 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal, 1530 t->afc); 1531 1532 return 0; 1533 1534 } 1535 1536 static int vidioc_g_frequency(struct file *file, void *priv, 1537 struct v4l2_frequency *freq) 1538 { 1539 struct au0828_dev *dev = video_drvdata(file); 1540 1541 if (freq->tuner != 0) 1542 return -EINVAL; 1543 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1544 dev->std_set_in_tuner_core, dev->dev_state); 1545 freq->frequency = dev->ctrl_freq; 1546 return 0; 1547 } 1548 1549 static int vidioc_s_frequency(struct file *file, void *priv, 1550 const struct v4l2_frequency *freq) 1551 { 1552 struct au0828_dev *dev = video_drvdata(file); 1553 struct v4l2_frequency new_freq = *freq; 1554 1555 if (freq->tuner != 0) 1556 return -EINVAL; 1557 1558 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1559 dev->std_set_in_tuner_core, dev->dev_state); 1560 1561 au0828_init_tuner(dev); 1562 i2c_gate_ctrl(dev, 1); 1563 1564 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq); 1565 /* Get the actual set (and possibly clamped) frequency */ 1566 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq); 1567 dev->ctrl_freq = new_freq.frequency; 1568 1569 i2c_gate_ctrl(dev, 0); 1570 1571 au0828_analog_stream_reset(dev); 1572 1573 return 0; 1574 } 1575 1576 1577 /* RAW VBI ioctls */ 1578 1579 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 1580 struct v4l2_format *format) 1581 { 1582 struct au0828_dev *dev = video_drvdata(file); 1583 1584 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1585 dev->std_set_in_tuner_core, dev->dev_state); 1586 1587 format->fmt.vbi.samples_per_line = dev->vbi_width; 1588 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1589 format->fmt.vbi.offset = 0; 1590 format->fmt.vbi.flags = 0; 1591 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 1592 1593 format->fmt.vbi.count[0] = dev->vbi_height; 1594 format->fmt.vbi.count[1] = dev->vbi_height; 1595 format->fmt.vbi.start[0] = 21; 1596 format->fmt.vbi.start[1] = 284; 1597 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved)); 1598 1599 return 0; 1600 } 1601 1602 static int vidioc_g_pixelaspect(struct file *file, void *priv, 1603 int type, struct v4l2_fract *f) 1604 { 1605 struct au0828_dev *dev = video_drvdata(file); 1606 1607 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1608 return -EINVAL; 1609 1610 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1611 dev->std_set_in_tuner_core, dev->dev_state); 1612 1613 f->numerator = 54; 1614 f->denominator = 59; 1615 1616 return 0; 1617 } 1618 1619 static int vidioc_g_selection(struct file *file, void *priv, 1620 struct v4l2_selection *s) 1621 { 1622 struct au0828_dev *dev = video_drvdata(file); 1623 1624 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1625 return -EINVAL; 1626 1627 switch (s->target) { 1628 case V4L2_SEL_TGT_CROP_BOUNDS: 1629 case V4L2_SEL_TGT_CROP_DEFAULT: 1630 s->r.left = 0; 1631 s->r.top = 0; 1632 s->r.width = dev->width; 1633 s->r.height = dev->height; 1634 break; 1635 default: 1636 return -EINVAL; 1637 } 1638 return 0; 1639 } 1640 1641 #ifdef CONFIG_VIDEO_ADV_DEBUG 1642 static int vidioc_g_register(struct file *file, void *priv, 1643 struct v4l2_dbg_register *reg) 1644 { 1645 struct au0828_dev *dev = video_drvdata(file); 1646 1647 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1648 dev->std_set_in_tuner_core, dev->dev_state); 1649 1650 reg->val = au0828_read(dev, reg->reg); 1651 reg->size = 1; 1652 return 0; 1653 } 1654 1655 static int vidioc_s_register(struct file *file, void *priv, 1656 const struct v4l2_dbg_register *reg) 1657 { 1658 struct au0828_dev *dev = video_drvdata(file); 1659 1660 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1661 dev->std_set_in_tuner_core, dev->dev_state); 1662 1663 return au0828_writereg(dev, reg->reg, reg->val); 1664 } 1665 #endif 1666 1667 static int vidioc_log_status(struct file *file, void *fh) 1668 { 1669 struct video_device *vdev = video_devdata(file); 1670 1671 dprintk(1, "%s called\n", __func__); 1672 1673 v4l2_ctrl_log_status(file, fh); 1674 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status); 1675 return 0; 1676 } 1677 1678 void au0828_v4l2_suspend(struct au0828_dev *dev) 1679 { 1680 struct urb *urb; 1681 int i; 1682 1683 pr_info("stopping V4L2\n"); 1684 1685 if (dev->stream_state == STREAM_ON) { 1686 pr_info("stopping V4L2 active URBs\n"); 1687 au0828_analog_stream_disable(dev); 1688 /* stop urbs */ 1689 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1690 urb = dev->isoc_ctl.urb[i]; 1691 if (urb) { 1692 if (!irqs_disabled()) 1693 usb_kill_urb(urb); 1694 else 1695 usb_unlink_urb(urb); 1696 } 1697 } 1698 } 1699 1700 if (dev->vid_timeout_running) 1701 del_timer_sync(&dev->vid_timeout); 1702 if (dev->vbi_timeout_running) 1703 del_timer_sync(&dev->vbi_timeout); 1704 } 1705 1706 void au0828_v4l2_resume(struct au0828_dev *dev) 1707 { 1708 int i, rc; 1709 1710 pr_info("restarting V4L2\n"); 1711 1712 if (dev->stream_state == STREAM_ON) { 1713 au0828_stream_interrupt(dev); 1714 au0828_init_tuner(dev); 1715 } 1716 1717 if (dev->vid_timeout_running) 1718 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 1719 if (dev->vbi_timeout_running) 1720 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1721 1722 /* If we were doing ac97 instead of i2s, it would go here...*/ 1723 au0828_i2s_init(dev); 1724 1725 au0828_analog_stream_enable(dev); 1726 1727 if (!(dev->stream_state == STREAM_ON)) { 1728 au0828_analog_stream_reset(dev); 1729 /* submit urbs */ 1730 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1731 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 1732 if (rc) { 1733 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 1734 i, rc); 1735 au0828_uninit_isoc(dev); 1736 } 1737 } 1738 } 1739 } 1740 1741 static const struct v4l2_file_operations au0828_v4l_fops = { 1742 .owner = THIS_MODULE, 1743 .open = au0828_v4l2_open, 1744 .release = au0828_v4l2_close, 1745 .read = vb2_fop_read, 1746 .poll = vb2_fop_poll, 1747 .mmap = vb2_fop_mmap, 1748 .unlocked_ioctl = video_ioctl2, 1749 }; 1750 1751 static const struct v4l2_ioctl_ops video_ioctl_ops = { 1752 .vidioc_querycap = vidioc_querycap, 1753 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1754 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1755 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1756 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1757 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1758 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1759 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1760 .vidioc_enumaudio = vidioc_enumaudio, 1761 .vidioc_g_audio = vidioc_g_audio, 1762 .vidioc_s_audio = vidioc_s_audio, 1763 .vidioc_g_pixelaspect = vidioc_g_pixelaspect, 1764 .vidioc_g_selection = vidioc_g_selection, 1765 1766 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1767 .vidioc_create_bufs = vb2_ioctl_create_bufs, 1768 .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 1769 .vidioc_querybuf = vb2_ioctl_querybuf, 1770 .vidioc_qbuf = vb2_ioctl_qbuf, 1771 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1772 .vidioc_expbuf = vb2_ioctl_expbuf, 1773 1774 .vidioc_s_std = vidioc_s_std, 1775 .vidioc_g_std = vidioc_g_std, 1776 .vidioc_enum_input = vidioc_enum_input, 1777 .vidioc_g_input = vidioc_g_input, 1778 .vidioc_s_input = vidioc_s_input, 1779 1780 .vidioc_streamon = vb2_ioctl_streamon, 1781 .vidioc_streamoff = vb2_ioctl_streamoff, 1782 1783 .vidioc_g_tuner = vidioc_g_tuner, 1784 .vidioc_s_tuner = vidioc_s_tuner, 1785 .vidioc_g_frequency = vidioc_g_frequency, 1786 .vidioc_s_frequency = vidioc_s_frequency, 1787 #ifdef CONFIG_VIDEO_ADV_DEBUG 1788 .vidioc_g_register = vidioc_g_register, 1789 .vidioc_s_register = vidioc_s_register, 1790 #endif 1791 .vidioc_log_status = vidioc_log_status, 1792 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1793 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1794 }; 1795 1796 static const struct video_device au0828_video_template = { 1797 .fops = &au0828_v4l_fops, 1798 .release = video_device_release_empty, 1799 .ioctl_ops = &video_ioctl_ops, 1800 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M, 1801 }; 1802 1803 static int au0828_vb2_setup(struct au0828_dev *dev) 1804 { 1805 int rc; 1806 struct vb2_queue *q; 1807 1808 /* Setup Videobuf2 for Video capture */ 1809 q = &dev->vb_vidq; 1810 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1811 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1812 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1813 q->drv_priv = dev; 1814 q->buf_struct_size = sizeof(struct au0828_buffer); 1815 q->ops = &au0828_video_qops; 1816 q->mem_ops = &vb2_vmalloc_memops; 1817 1818 rc = vb2_queue_init(q); 1819 if (rc < 0) 1820 return rc; 1821 1822 /* Setup Videobuf2 for VBI capture */ 1823 q = &dev->vb_vbiq; 1824 q->type = V4L2_BUF_TYPE_VBI_CAPTURE; 1825 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1826 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1827 q->drv_priv = dev; 1828 q->buf_struct_size = sizeof(struct au0828_buffer); 1829 q->ops = &au0828_vbi_qops; 1830 q->mem_ops = &vb2_vmalloc_memops; 1831 1832 rc = vb2_queue_init(q); 1833 if (rc < 0) 1834 return rc; 1835 1836 return 0; 1837 } 1838 1839 static void au0828_analog_create_entities(struct au0828_dev *dev) 1840 { 1841 #if defined(CONFIG_MEDIA_CONTROLLER) 1842 static const char * const inames[] = { 1843 [AU0828_VMUX_COMPOSITE] = "Composite", 1844 [AU0828_VMUX_SVIDEO] = "S-Video", 1845 [AU0828_VMUX_CABLE] = "Cable TV", 1846 [AU0828_VMUX_TELEVISION] = "Television", 1847 [AU0828_VMUX_DVB] = "DVB", 1848 }; 1849 int ret, i; 1850 1851 /* Initialize Video and VBI pads */ 1852 dev->video_pad.flags = MEDIA_PAD_FL_SINK; 1853 ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad); 1854 if (ret < 0) 1855 pr_err("failed to initialize video media entity!\n"); 1856 1857 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK; 1858 ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad); 1859 if (ret < 0) 1860 pr_err("failed to initialize vbi media entity!\n"); 1861 1862 /* Create entities for each input connector */ 1863 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1864 struct media_entity *ent = &dev->input_ent[i]; 1865 1866 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) 1867 break; 1868 1869 ent->name = inames[AUVI_INPUT(i).type]; 1870 ent->flags = MEDIA_ENT_FL_CONNECTOR; 1871 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE; 1872 1873 switch (AUVI_INPUT(i).type) { 1874 case AU0828_VMUX_COMPOSITE: 1875 ent->function = MEDIA_ENT_F_CONN_COMPOSITE; 1876 break; 1877 case AU0828_VMUX_SVIDEO: 1878 ent->function = MEDIA_ENT_F_CONN_SVIDEO; 1879 break; 1880 case AU0828_VMUX_CABLE: 1881 case AU0828_VMUX_TELEVISION: 1882 case AU0828_VMUX_DVB: 1883 default: /* Just to shut up a warning */ 1884 ent->function = MEDIA_ENT_F_CONN_RF; 1885 break; 1886 } 1887 1888 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]); 1889 if (ret < 0) 1890 pr_err("failed to initialize input pad[%d]!\n", i); 1891 1892 ret = media_device_register_entity(dev->media_dev, ent); 1893 if (ret < 0) 1894 pr_err("failed to register input entity %d!\n", i); 1895 } 1896 #endif 1897 } 1898 1899 /**************************************************************************/ 1900 1901 int au0828_analog_register(struct au0828_dev *dev, 1902 struct usb_interface *interface) 1903 { 1904 int retval = -ENOMEM; 1905 struct usb_host_interface *iface_desc; 1906 struct usb_endpoint_descriptor *endpoint; 1907 int i, ret; 1908 1909 dprintk(1, "au0828_analog_register called for intf#%d!\n", 1910 interface->cur_altsetting->desc.bInterfaceNumber); 1911 1912 /* No analog TV */ 1913 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 1914 return 0; 1915 1916 /* set au0828 usb interface0 to as5 */ 1917 retval = usb_set_interface(dev->usbdev, 1918 interface->cur_altsetting->desc.bInterfaceNumber, 5); 1919 if (retval != 0) { 1920 pr_info("Failure setting usb interface0 to as5\n"); 1921 return retval; 1922 } 1923 1924 /* Figure out which endpoint has the isoc interface */ 1925 iface_desc = interface->cur_altsetting; 1926 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { 1927 endpoint = &iface_desc->endpoint[i].desc; 1928 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1929 == USB_DIR_IN) && 1930 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1931 == USB_ENDPOINT_XFER_ISOC)) { 1932 1933 /* we find our isoc in endpoint */ 1934 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize); 1935 dev->max_pkt_size = (tmp & 0x07ff) * 1936 (((tmp & 0x1800) >> 11) + 1); 1937 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress; 1938 dprintk(1, 1939 "Found isoc endpoint 0x%02x, max size = %d\n", 1940 dev->isoc_in_endpointaddr, dev->max_pkt_size); 1941 } 1942 } 1943 if (!(dev->isoc_in_endpointaddr)) { 1944 pr_info("Could not locate isoc endpoint\n"); 1945 return -ENODEV; 1946 } 1947 1948 init_waitqueue_head(&dev->open); 1949 spin_lock_init(&dev->slock); 1950 1951 /* init video dma queues */ 1952 INIT_LIST_HEAD(&dev->vidq.active); 1953 INIT_LIST_HEAD(&dev->vbiq.active); 1954 1955 timer_setup(&dev->vid_timeout, au0828_vid_buffer_timeout, 0); 1956 timer_setup(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 0); 1957 1958 dev->width = NTSC_STD_W; 1959 dev->height = NTSC_STD_H; 1960 dev->field_size = dev->width * dev->height; 1961 dev->frame_size = dev->field_size << 1; 1962 dev->bytesperline = dev->width << 1; 1963 dev->vbi_width = 720; 1964 dev->vbi_height = 1; 1965 dev->ctrl_ainput = 0; 1966 dev->ctrl_freq = 960; 1967 dev->std = V4L2_STD_NTSC_M; 1968 /* Default input is TV Tuner */ 1969 au0828_s_input(dev, 0); 1970 1971 mutex_init(&dev->vb_queue_lock); 1972 mutex_init(&dev->vb_vbi_queue_lock); 1973 1974 /* Fill the video capture device struct */ 1975 dev->vdev = au0828_video_template; 1976 dev->vdev.v4l2_dev = &dev->v4l2_dev; 1977 dev->vdev.lock = &dev->lock; 1978 dev->vdev.queue = &dev->vb_vidq; 1979 dev->vdev.queue->lock = &dev->vb_queue_lock; 1980 dev->vdev.device_caps = 1981 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | 1982 V4L2_CAP_TUNER | V4L2_CAP_VIDEO_CAPTURE; 1983 strscpy(dev->vdev.name, "au0828a video", sizeof(dev->vdev.name)); 1984 1985 /* Setup the VBI device */ 1986 dev->vbi_dev = au0828_video_template; 1987 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev; 1988 dev->vbi_dev.lock = &dev->lock; 1989 dev->vbi_dev.queue = &dev->vb_vbiq; 1990 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock; 1991 dev->vbi_dev.device_caps = 1992 V4L2_CAP_AUDIO | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | 1993 V4L2_CAP_TUNER | V4L2_CAP_VBI_CAPTURE; 1994 strscpy(dev->vbi_dev.name, "au0828a vbi", sizeof(dev->vbi_dev.name)); 1995 1996 /* Init entities at the Media Controller */ 1997 au0828_analog_create_entities(dev); 1998 1999 /* initialize videobuf2 stuff */ 2000 retval = au0828_vb2_setup(dev); 2001 if (retval != 0) { 2002 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n", 2003 retval); 2004 return -ENODEV; 2005 } 2006 2007 /* Register the v4l2 device */ 2008 video_set_drvdata(&dev->vdev, dev); 2009 retval = video_register_device(&dev->vdev, VFL_TYPE_VIDEO, -1); 2010 if (retval != 0) { 2011 dprintk(1, "unable to register video device (error = %d).\n", 2012 retval); 2013 return -ENODEV; 2014 } 2015 2016 /* Register the vbi device */ 2017 video_set_drvdata(&dev->vbi_dev, dev); 2018 retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1); 2019 if (retval != 0) { 2020 dprintk(1, "unable to register vbi device (error = %d).\n", 2021 retval); 2022 ret = -ENODEV; 2023 goto err_reg_vbi_dev; 2024 } 2025 2026 #ifdef CONFIG_MEDIA_CONTROLLER 2027 retval = v4l2_mc_create_media_graph(dev->media_dev); 2028 if (retval) { 2029 pr_err("%s() au0282_dev_register failed to create graph\n", 2030 __func__); 2031 ret = -ENODEV; 2032 goto err_reg_vbi_dev; 2033 } 2034 #endif 2035 2036 dprintk(1, "%s completed!\n", __func__); 2037 2038 return 0; 2039 2040 err_reg_vbi_dev: 2041 vb2_video_unregister_device(&dev->vdev); 2042 return ret; 2043 } 2044 2045