1 /* 2 * Auvitek AU0828 USB Bridge (Analog video support) 3 * 4 * Copyright (C) 2009 Devin Heitmueller <dheitmueller@linuxtv.org> 5 * Copyright (C) 2005-2008 Auvitek International, Ltd. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * As published by the Free Software Foundation; either version 2 10 * of the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 */ 17 18 /* Developer Notes: 19 * 20 * The hardware scaler supported is unimplemented 21 * AC97 audio support is unimplemented (only i2s audio mode) 22 * 23 */ 24 25 #include "au0828.h" 26 #include "au8522.h" 27 28 #include <linux/module.h> 29 #include <linux/slab.h> 30 #include <linux/init.h> 31 #include <linux/device.h> 32 #include <media/v4l2-common.h> 33 #include <media/v4l2-mc.h> 34 #include <media/v4l2-ioctl.h> 35 #include <media/v4l2-event.h> 36 #include <media/tuner.h> 37 #include "au0828-reg.h" 38 39 static DEFINE_MUTEX(au0828_sysfs_lock); 40 41 /* ------------------------------------------------------------------ 42 Videobuf operations 43 ------------------------------------------------------------------*/ 44 45 static unsigned int isoc_debug; 46 module_param(isoc_debug, int, 0644); 47 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); 48 49 #define au0828_isocdbg(fmt, arg...) \ 50 do {\ 51 if (isoc_debug) { \ 52 pr_info("au0828 %s :"fmt, \ 53 __func__ , ##arg); \ 54 } \ 55 } while (0) 56 57 static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val) 58 { 59 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl) 60 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val); 61 } 62 63 static inline void print_err_status(struct au0828_dev *dev, 64 int packet, int status) 65 { 66 char *errmsg = "Unknown"; 67 68 switch (status) { 69 case -ENOENT: 70 errmsg = "unlinked synchronuously"; 71 break; 72 case -ECONNRESET: 73 errmsg = "unlinked asynchronuously"; 74 break; 75 case -ENOSR: 76 errmsg = "Buffer error (overrun)"; 77 break; 78 case -EPIPE: 79 errmsg = "Stalled (device not responding)"; 80 break; 81 case -EOVERFLOW: 82 errmsg = "Babble (bad cable?)"; 83 break; 84 case -EPROTO: 85 errmsg = "Bit-stuff error (bad cable?)"; 86 break; 87 case -EILSEQ: 88 errmsg = "CRC/Timeout (could be anything)"; 89 break; 90 case -ETIME: 91 errmsg = "Device does not respond"; 92 break; 93 } 94 if (packet < 0) { 95 au0828_isocdbg("URB status %d [%s].\n", status, errmsg); 96 } else { 97 au0828_isocdbg("URB packet %d, status %d [%s].\n", 98 packet, status, errmsg); 99 } 100 } 101 102 static int check_dev(struct au0828_dev *dev) 103 { 104 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) { 105 pr_info("v4l2 ioctl: device not present\n"); 106 return -ENODEV; 107 } 108 109 if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) { 110 pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n"); 111 return -EIO; 112 } 113 return 0; 114 } 115 116 /* 117 * IRQ callback, called by URB callback 118 */ 119 static void au0828_irq_callback(struct urb *urb) 120 { 121 struct au0828_dmaqueue *dma_q = urb->context; 122 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 123 unsigned long flags = 0; 124 int i; 125 126 switch (urb->status) { 127 case 0: /* success */ 128 case -ETIMEDOUT: /* NAK */ 129 break; 130 case -ECONNRESET: /* kill */ 131 case -ENOENT: 132 case -ESHUTDOWN: 133 au0828_isocdbg("au0828_irq_callback called: status kill\n"); 134 return; 135 default: /* unknown error */ 136 au0828_isocdbg("urb completition error %d.\n", urb->status); 137 break; 138 } 139 140 /* Copy data from URB */ 141 spin_lock_irqsave(&dev->slock, flags); 142 dev->isoc_ctl.isoc_copy(dev, urb); 143 spin_unlock_irqrestore(&dev->slock, flags); 144 145 /* Reset urb buffers */ 146 for (i = 0; i < urb->number_of_packets; i++) { 147 urb->iso_frame_desc[i].status = 0; 148 urb->iso_frame_desc[i].actual_length = 0; 149 } 150 urb->status = 0; 151 152 urb->status = usb_submit_urb(urb, GFP_ATOMIC); 153 if (urb->status) { 154 au0828_isocdbg("urb resubmit failed (error=%i)\n", 155 urb->status); 156 } 157 dev->stream_state = STREAM_ON; 158 } 159 160 /* 161 * Stop and Deallocate URBs 162 */ 163 static void au0828_uninit_isoc(struct au0828_dev *dev) 164 { 165 struct urb *urb; 166 int i; 167 168 au0828_isocdbg("au0828: called au0828_uninit_isoc\n"); 169 170 dev->isoc_ctl.nfields = -1; 171 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 172 urb = dev->isoc_ctl.urb[i]; 173 if (urb) { 174 if (!irqs_disabled()) 175 usb_kill_urb(urb); 176 else 177 usb_unlink_urb(urb); 178 179 if (dev->isoc_ctl.transfer_buffer[i]) { 180 usb_free_coherent(dev->usbdev, 181 urb->transfer_buffer_length, 182 dev->isoc_ctl.transfer_buffer[i], 183 urb->transfer_dma); 184 } 185 usb_free_urb(urb); 186 dev->isoc_ctl.urb[i] = NULL; 187 } 188 dev->isoc_ctl.transfer_buffer[i] = NULL; 189 } 190 191 kfree(dev->isoc_ctl.urb); 192 kfree(dev->isoc_ctl.transfer_buffer); 193 194 dev->isoc_ctl.urb = NULL; 195 dev->isoc_ctl.transfer_buffer = NULL; 196 dev->isoc_ctl.num_bufs = 0; 197 198 dev->stream_state = STREAM_OFF; 199 } 200 201 /* 202 * Allocate URBs and start IRQ 203 */ 204 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets, 205 int num_bufs, int max_pkt_size, 206 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb)) 207 { 208 struct au0828_dmaqueue *dma_q = &dev->vidq; 209 int i; 210 int sb_size, pipe; 211 struct urb *urb; 212 int j, k; 213 int rc; 214 215 au0828_isocdbg("au0828: called au0828_prepare_isoc\n"); 216 217 dev->isoc_ctl.isoc_copy = isoc_copy; 218 dev->isoc_ctl.num_bufs = num_bufs; 219 220 dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL); 221 if (!dev->isoc_ctl.urb) { 222 au0828_isocdbg("cannot alloc memory for usb buffers\n"); 223 return -ENOMEM; 224 } 225 226 dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs, 227 GFP_KERNEL); 228 if (!dev->isoc_ctl.transfer_buffer) { 229 au0828_isocdbg("cannot allocate memory for usb transfer\n"); 230 kfree(dev->isoc_ctl.urb); 231 return -ENOMEM; 232 } 233 234 dev->isoc_ctl.max_pkt_size = max_pkt_size; 235 dev->isoc_ctl.buf = NULL; 236 237 sb_size = max_packets * dev->isoc_ctl.max_pkt_size; 238 239 /* allocate urbs and transfer buffers */ 240 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 241 urb = usb_alloc_urb(max_packets, GFP_KERNEL); 242 if (!urb) { 243 au0828_uninit_isoc(dev); 244 return -ENOMEM; 245 } 246 dev->isoc_ctl.urb[i] = urb; 247 248 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev, 249 sb_size, GFP_KERNEL, &urb->transfer_dma); 250 if (!dev->isoc_ctl.transfer_buffer[i]) { 251 printk("unable to allocate %i bytes for transfer buffer %i%s\n", 252 sb_size, i, 253 in_interrupt() ? " while in int" : ""); 254 au0828_uninit_isoc(dev); 255 return -ENOMEM; 256 } 257 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size); 258 259 pipe = usb_rcvisocpipe(dev->usbdev, 260 dev->isoc_in_endpointaddr), 261 262 usb_fill_int_urb(urb, dev->usbdev, pipe, 263 dev->isoc_ctl.transfer_buffer[i], sb_size, 264 au0828_irq_callback, dma_q, 1); 265 266 urb->number_of_packets = max_packets; 267 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; 268 269 k = 0; 270 for (j = 0; j < max_packets; j++) { 271 urb->iso_frame_desc[j].offset = k; 272 urb->iso_frame_desc[j].length = 273 dev->isoc_ctl.max_pkt_size; 274 k += dev->isoc_ctl.max_pkt_size; 275 } 276 } 277 278 /* submit urbs and enables IRQ */ 279 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 280 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 281 if (rc) { 282 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 283 i, rc); 284 au0828_uninit_isoc(dev); 285 return rc; 286 } 287 } 288 289 return 0; 290 } 291 292 /* 293 * Announces that a buffer were filled and request the next 294 */ 295 static inline void buffer_filled(struct au0828_dev *dev, 296 struct au0828_dmaqueue *dma_q, 297 struct au0828_buffer *buf) 298 { 299 struct vb2_v4l2_buffer *vb = &buf->vb; 300 struct vb2_queue *q = vb->vb2_buf.vb2_queue; 301 302 /* Advice that buffer was filled */ 303 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field); 304 305 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 306 vb->sequence = dev->frame_count++; 307 else 308 vb->sequence = dev->vbi_frame_count++; 309 310 vb->field = V4L2_FIELD_INTERLACED; 311 vb->vb2_buf.timestamp = ktime_get_ns(); 312 vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE); 313 } 314 315 /* 316 * Identify the buffer header type and properly handles 317 */ 318 static void au0828_copy_video(struct au0828_dev *dev, 319 struct au0828_dmaqueue *dma_q, 320 struct au0828_buffer *buf, 321 unsigned char *p, 322 unsigned char *outp, unsigned long len) 323 { 324 void *fieldstart, *startwrite, *startread; 325 int linesdone, currlinedone, offset, lencopy, remain; 326 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */ 327 328 if (len == 0) 329 return; 330 331 if (dma_q->pos + len > buf->length) 332 len = buf->length - dma_q->pos; 333 334 startread = p; 335 remain = len; 336 337 /* Interlaces frame */ 338 if (buf->top_field) 339 fieldstart = outp; 340 else 341 fieldstart = outp + bytesperline; 342 343 linesdone = dma_q->pos / bytesperline; 344 currlinedone = dma_q->pos % bytesperline; 345 offset = linesdone * bytesperline * 2 + currlinedone; 346 startwrite = fieldstart + offset; 347 lencopy = bytesperline - currlinedone; 348 lencopy = lencopy > remain ? remain : lencopy; 349 350 if ((char *)startwrite + lencopy > (char *)outp + buf->length) { 351 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n", 352 ((char *)startwrite + lencopy) - 353 ((char *)outp + buf->length)); 354 remain = (char *)outp + buf->length - (char *)startwrite; 355 lencopy = remain; 356 } 357 if (lencopy <= 0) 358 return; 359 memcpy(startwrite, startread, lencopy); 360 361 remain -= lencopy; 362 363 while (remain > 0) { 364 startwrite += lencopy + bytesperline; 365 startread += lencopy; 366 if (bytesperline > remain) 367 lencopy = remain; 368 else 369 lencopy = bytesperline; 370 371 if ((char *)startwrite + lencopy > (char *)outp + 372 buf->length) { 373 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n", 374 ((char *)startwrite + lencopy) - 375 ((char *)outp + buf->length)); 376 lencopy = remain = (char *)outp + buf->length - 377 (char *)startwrite; 378 } 379 if (lencopy <= 0) 380 break; 381 382 memcpy(startwrite, startread, lencopy); 383 384 remain -= lencopy; 385 } 386 387 if (offset > 1440) { 388 /* We have enough data to check for greenscreen */ 389 if (outp[0] < 0x60 && outp[1440] < 0x60) 390 dev->greenscreen_detected = 1; 391 } 392 393 dma_q->pos += len; 394 } 395 396 /* 397 * video-buf generic routine to get the next available buffer 398 */ 399 static inline void get_next_buf(struct au0828_dmaqueue *dma_q, 400 struct au0828_buffer **buf) 401 { 402 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 403 404 if (list_empty(&dma_q->active)) { 405 au0828_isocdbg("No active queue to serve\n"); 406 dev->isoc_ctl.buf = NULL; 407 *buf = NULL; 408 return; 409 } 410 411 /* Get the next buffer */ 412 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 413 /* Cleans up buffer - Useful for testing for frame/URB loss */ 414 list_del(&(*buf)->list); 415 dma_q->pos = 0; 416 (*buf)->vb_buf = (*buf)->mem; 417 dev->isoc_ctl.buf = *buf; 418 419 return; 420 } 421 422 static void au0828_copy_vbi(struct au0828_dev *dev, 423 struct au0828_dmaqueue *dma_q, 424 struct au0828_buffer *buf, 425 unsigned char *p, 426 unsigned char *outp, unsigned long len) 427 { 428 unsigned char *startwrite, *startread; 429 int bytesperline; 430 int i, j = 0; 431 432 if (dev == NULL) { 433 au0828_isocdbg("dev is null\n"); 434 return; 435 } 436 437 if (dma_q == NULL) { 438 au0828_isocdbg("dma_q is null\n"); 439 return; 440 } 441 if (buf == NULL) 442 return; 443 if (p == NULL) { 444 au0828_isocdbg("p is null\n"); 445 return; 446 } 447 if (outp == NULL) { 448 au0828_isocdbg("outp is null\n"); 449 return; 450 } 451 452 bytesperline = dev->vbi_width; 453 454 if (dma_q->pos + len > buf->length) 455 len = buf->length - dma_q->pos; 456 457 startread = p; 458 startwrite = outp + (dma_q->pos / 2); 459 460 /* Make sure the bottom field populates the second half of the frame */ 461 if (buf->top_field == 0) 462 startwrite += bytesperline * dev->vbi_height; 463 464 for (i = 0; i < len; i += 2) 465 startwrite[j++] = startread[i+1]; 466 467 dma_q->pos += len; 468 } 469 470 471 /* 472 * video-buf generic routine to get the next available VBI buffer 473 */ 474 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q, 475 struct au0828_buffer **buf) 476 { 477 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq); 478 479 if (list_empty(&dma_q->active)) { 480 au0828_isocdbg("No active queue to serve\n"); 481 dev->isoc_ctl.vbi_buf = NULL; 482 *buf = NULL; 483 return; 484 } 485 486 /* Get the next buffer */ 487 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 488 /* Cleans up buffer - Useful for testing for frame/URB loss */ 489 list_del(&(*buf)->list); 490 dma_q->pos = 0; 491 (*buf)->vb_buf = (*buf)->mem; 492 dev->isoc_ctl.vbi_buf = *buf; 493 return; 494 } 495 496 /* 497 * Controls the isoc copy of each urb packet 498 */ 499 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb) 500 { 501 struct au0828_buffer *buf; 502 struct au0828_buffer *vbi_buf; 503 struct au0828_dmaqueue *dma_q = urb->context; 504 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq; 505 unsigned char *outp = NULL; 506 unsigned char *vbioutp = NULL; 507 int i, len = 0, rc = 1; 508 unsigned char *p; 509 unsigned char fbyte; 510 unsigned int vbi_field_size; 511 unsigned int remain, lencopy; 512 513 if (!dev) 514 return 0; 515 516 if (test_bit(DEV_DISCONNECTED, &dev->dev_state) || 517 test_bit(DEV_MISCONFIGURED, &dev->dev_state)) 518 return 0; 519 520 if (urb->status < 0) { 521 print_err_status(dev, -1, urb->status); 522 if (urb->status == -ENOENT) 523 return 0; 524 } 525 526 buf = dev->isoc_ctl.buf; 527 if (buf != NULL) 528 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 529 530 vbi_buf = dev->isoc_ctl.vbi_buf; 531 if (vbi_buf != NULL) 532 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0); 533 534 for (i = 0; i < urb->number_of_packets; i++) { 535 int status = urb->iso_frame_desc[i].status; 536 537 if (status < 0) { 538 print_err_status(dev, i, status); 539 if (urb->iso_frame_desc[i].status != -EPROTO) 540 continue; 541 } 542 543 if (urb->iso_frame_desc[i].actual_length <= 0) 544 continue; 545 546 if (urb->iso_frame_desc[i].actual_length > 547 dev->max_pkt_size) { 548 au0828_isocdbg("packet bigger than packet size"); 549 continue; 550 } 551 552 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset; 553 fbyte = p[0]; 554 len = urb->iso_frame_desc[i].actual_length - 4; 555 p += 4; 556 557 if (fbyte & 0x80) { 558 len -= 4; 559 p += 4; 560 au0828_isocdbg("Video frame %s\n", 561 (fbyte & 0x40) ? "odd" : "even"); 562 if (fbyte & 0x40) { 563 /* VBI */ 564 if (vbi_buf != NULL) 565 buffer_filled(dev, vbi_dma_q, vbi_buf); 566 vbi_get_next_buf(vbi_dma_q, &vbi_buf); 567 if (vbi_buf == NULL) 568 vbioutp = NULL; 569 else 570 vbioutp = vb2_plane_vaddr( 571 &vbi_buf->vb.vb2_buf, 0); 572 573 /* Video */ 574 if (buf != NULL) 575 buffer_filled(dev, dma_q, buf); 576 get_next_buf(dma_q, &buf); 577 if (buf == NULL) 578 outp = NULL; 579 else 580 outp = vb2_plane_vaddr( 581 &buf->vb.vb2_buf, 0); 582 583 /* As long as isoc traffic is arriving, keep 584 resetting the timer */ 585 if (dev->vid_timeout_running) 586 mod_timer(&dev->vid_timeout, 587 jiffies + (HZ / 10)); 588 if (dev->vbi_timeout_running) 589 mod_timer(&dev->vbi_timeout, 590 jiffies + (HZ / 10)); 591 } 592 593 if (buf != NULL) { 594 if (fbyte & 0x40) 595 buf->top_field = 1; 596 else 597 buf->top_field = 0; 598 } 599 600 if (vbi_buf != NULL) { 601 if (fbyte & 0x40) 602 vbi_buf->top_field = 1; 603 else 604 vbi_buf->top_field = 0; 605 } 606 607 dev->vbi_read = 0; 608 vbi_dma_q->pos = 0; 609 dma_q->pos = 0; 610 } 611 612 vbi_field_size = dev->vbi_width * dev->vbi_height * 2; 613 if (dev->vbi_read < vbi_field_size) { 614 remain = vbi_field_size - dev->vbi_read; 615 if (len < remain) 616 lencopy = len; 617 else 618 lencopy = remain; 619 620 if (vbi_buf != NULL) 621 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p, 622 vbioutp, len); 623 624 len -= lencopy; 625 p += lencopy; 626 dev->vbi_read += lencopy; 627 } 628 629 if (dev->vbi_read >= vbi_field_size && buf != NULL) 630 au0828_copy_video(dev, dma_q, buf, p, outp, len); 631 } 632 return rc; 633 } 634 635 void au0828_usb_v4l2_media_release(struct au0828_dev *dev) 636 { 637 #ifdef CONFIG_MEDIA_CONTROLLER 638 int i; 639 640 for (i = 0; i < AU0828_MAX_INPUT; i++) { 641 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) 642 return; 643 media_device_unregister_entity(&dev->input_ent[i]); 644 } 645 #endif 646 } 647 648 static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev) 649 { 650 struct au0828_dev *dev = 651 container_of(v4l2_dev, struct au0828_dev, v4l2_dev); 652 653 v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl); 654 v4l2_device_unregister(&dev->v4l2_dev); 655 au0828_usb_v4l2_media_release(dev); 656 au0828_usb_release(dev); 657 } 658 659 int au0828_v4l2_device_register(struct usb_interface *interface, 660 struct au0828_dev *dev) 661 { 662 int retval; 663 664 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 665 return 0; 666 667 /* Create the v4l2_device */ 668 #ifdef CONFIG_MEDIA_CONTROLLER 669 dev->v4l2_dev.mdev = dev->media_dev; 670 #endif 671 retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev); 672 if (retval) { 673 pr_err("%s() v4l2_device_register failed\n", 674 __func__); 675 return retval; 676 } 677 678 dev->v4l2_dev.release = au0828_usb_v4l2_release; 679 680 /* This control handler will inherit the controls from au8522 */ 681 retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4); 682 if (retval) { 683 pr_err("%s() v4l2_ctrl_handler_init failed\n", 684 __func__); 685 return retval; 686 } 687 dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl; 688 689 return 0; 690 } 691 692 static int queue_setup(struct vb2_queue *vq, 693 unsigned int *nbuffers, unsigned int *nplanes, 694 unsigned int sizes[], struct device *alloc_devs[]) 695 { 696 struct au0828_dev *dev = vb2_get_drv_priv(vq); 697 unsigned long size = dev->height * dev->bytesperline; 698 699 if (*nplanes) 700 return sizes[0] < size ? -EINVAL : 0; 701 *nplanes = 1; 702 sizes[0] = size; 703 return 0; 704 } 705 706 static int 707 buffer_prepare(struct vb2_buffer *vb) 708 { 709 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 710 struct au0828_buffer *buf = container_of(vbuf, 711 struct au0828_buffer, vb); 712 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 713 714 buf->length = dev->height * dev->bytesperline; 715 716 if (vb2_plane_size(vb, 0) < buf->length) { 717 pr_err("%s data will not fit into plane (%lu < %lu)\n", 718 __func__, vb2_plane_size(vb, 0), buf->length); 719 return -EINVAL; 720 } 721 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length); 722 return 0; 723 } 724 725 static void 726 buffer_queue(struct vb2_buffer *vb) 727 { 728 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 729 struct au0828_buffer *buf = container_of(vbuf, 730 struct au0828_buffer, 731 vb); 732 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 733 struct au0828_dmaqueue *vidq = &dev->vidq; 734 unsigned long flags = 0; 735 736 buf->mem = vb2_plane_vaddr(vb, 0); 737 buf->length = vb2_plane_size(vb, 0); 738 739 spin_lock_irqsave(&dev->slock, flags); 740 list_add_tail(&buf->list, &vidq->active); 741 spin_unlock_irqrestore(&dev->slock, flags); 742 } 743 744 static int au0828_i2s_init(struct au0828_dev *dev) 745 { 746 /* Enable i2s mode */ 747 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01); 748 return 0; 749 } 750 751 /* 752 * Auvitek au0828 analog stream enable 753 */ 754 static int au0828_analog_stream_enable(struct au0828_dev *d) 755 { 756 struct usb_interface *iface; 757 int ret, h, w; 758 759 dprintk(1, "au0828_analog_stream_enable called\n"); 760 761 iface = usb_ifnum_to_if(d->usbdev, 0); 762 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) { 763 dprintk(1, "Changing intf#0 to alt 5\n"); 764 /* set au0828 interface0 to AS5 here again */ 765 ret = usb_set_interface(d->usbdev, 0, 5); 766 if (ret < 0) { 767 pr_info("Au0828 can't set alt setting to 5!\n"); 768 return -EBUSY; 769 } 770 } 771 772 h = d->height / 2 + 2; 773 w = d->width * 2; 774 775 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00); 776 au0828_writereg(d, 0x106, 0x00); 777 /* set x position */ 778 au0828_writereg(d, 0x110, 0x00); 779 au0828_writereg(d, 0x111, 0x00); 780 au0828_writereg(d, 0x114, w & 0xff); 781 au0828_writereg(d, 0x115, w >> 8); 782 /* set y position */ 783 au0828_writereg(d, 0x112, 0x00); 784 au0828_writereg(d, 0x113, 0x00); 785 au0828_writereg(d, 0x116, h & 0xff); 786 au0828_writereg(d, 0x117, h >> 8); 787 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3); 788 789 return 0; 790 } 791 792 static int au0828_analog_stream_disable(struct au0828_dev *d) 793 { 794 dprintk(1, "au0828_analog_stream_disable called\n"); 795 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0); 796 return 0; 797 } 798 799 static void au0828_analog_stream_reset(struct au0828_dev *dev) 800 { 801 dprintk(1, "au0828_analog_stream_reset called\n"); 802 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0); 803 mdelay(30); 804 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3); 805 } 806 807 /* 808 * Some operations needs to stop current streaming 809 */ 810 static int au0828_stream_interrupt(struct au0828_dev *dev) 811 { 812 int ret = 0; 813 814 dev->stream_state = STREAM_INTERRUPT; 815 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) 816 return -ENODEV; 817 else if (ret) { 818 set_bit(DEV_MISCONFIGURED, &dev->dev_state); 819 dprintk(1, "%s device is misconfigured!\n", __func__); 820 return ret; 821 } 822 return 0; 823 } 824 825 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count) 826 { 827 struct au0828_dev *dev = vb2_get_drv_priv(vq); 828 int rc = 0; 829 830 dprintk(1, "au0828_start_analog_streaming called %d\n", 831 dev->streaming_users); 832 833 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 834 dev->frame_count = 0; 835 else 836 dev->vbi_frame_count = 0; 837 838 if (dev->streaming_users == 0) { 839 /* If we were doing ac97 instead of i2s, it would go here...*/ 840 au0828_i2s_init(dev); 841 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB, 842 AU0828_MAX_ISO_BUFS, dev->max_pkt_size, 843 au0828_isoc_copy); 844 if (rc < 0) { 845 pr_info("au0828_init_isoc failed\n"); 846 return rc; 847 } 848 849 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 850 v4l2_device_call_all(&dev->v4l2_dev, 0, video, 851 s_stream, 1); 852 dev->vid_timeout_running = 1; 853 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 854 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 855 dev->vbi_timeout_running = 1; 856 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 857 } 858 } 859 dev->streaming_users++; 860 return rc; 861 } 862 863 static void au0828_stop_streaming(struct vb2_queue *vq) 864 { 865 struct au0828_dev *dev = vb2_get_drv_priv(vq); 866 struct au0828_dmaqueue *vidq = &dev->vidq; 867 unsigned long flags = 0; 868 869 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users); 870 871 if (dev->streaming_users-- == 1) 872 au0828_uninit_isoc(dev); 873 874 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 875 dev->vid_timeout_running = 0; 876 del_timer_sync(&dev->vid_timeout); 877 878 spin_lock_irqsave(&dev->slock, flags); 879 if (dev->isoc_ctl.buf != NULL) { 880 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf, 881 VB2_BUF_STATE_ERROR); 882 dev->isoc_ctl.buf = NULL; 883 } 884 while (!list_empty(&vidq->active)) { 885 struct au0828_buffer *buf; 886 887 buf = list_entry(vidq->active.next, struct au0828_buffer, list); 888 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 889 list_del(&buf->list); 890 } 891 spin_unlock_irqrestore(&dev->slock, flags); 892 } 893 894 void au0828_stop_vbi_streaming(struct vb2_queue *vq) 895 { 896 struct au0828_dev *dev = vb2_get_drv_priv(vq); 897 struct au0828_dmaqueue *vbiq = &dev->vbiq; 898 unsigned long flags = 0; 899 900 dprintk(1, "au0828_stop_vbi_streaming called %d\n", 901 dev->streaming_users); 902 903 if (dev->streaming_users-- == 1) 904 au0828_uninit_isoc(dev); 905 906 spin_lock_irqsave(&dev->slock, flags); 907 if (dev->isoc_ctl.vbi_buf != NULL) { 908 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf, 909 VB2_BUF_STATE_ERROR); 910 dev->isoc_ctl.vbi_buf = NULL; 911 } 912 while (!list_empty(&vbiq->active)) { 913 struct au0828_buffer *buf; 914 915 buf = list_entry(vbiq->active.next, struct au0828_buffer, list); 916 list_del(&buf->list); 917 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 918 } 919 spin_unlock_irqrestore(&dev->slock, flags); 920 921 dev->vbi_timeout_running = 0; 922 del_timer_sync(&dev->vbi_timeout); 923 } 924 925 static const struct vb2_ops au0828_video_qops = { 926 .queue_setup = queue_setup, 927 .buf_prepare = buffer_prepare, 928 .buf_queue = buffer_queue, 929 .start_streaming = au0828_start_analog_streaming, 930 .stop_streaming = au0828_stop_streaming, 931 .wait_prepare = vb2_ops_wait_prepare, 932 .wait_finish = vb2_ops_wait_finish, 933 }; 934 935 /* ------------------------------------------------------------------ 936 V4L2 interface 937 ------------------------------------------------------------------*/ 938 /* 939 * au0828_analog_unregister 940 * unregister v4l2 devices 941 */ 942 int au0828_analog_unregister(struct au0828_dev *dev) 943 { 944 dprintk(1, "au0828_analog_unregister called\n"); 945 946 /* No analog TV */ 947 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 948 return 0; 949 950 mutex_lock(&au0828_sysfs_lock); 951 video_unregister_device(&dev->vdev); 952 video_unregister_device(&dev->vbi_dev); 953 mutex_unlock(&au0828_sysfs_lock); 954 955 v4l2_device_disconnect(&dev->v4l2_dev); 956 v4l2_device_put(&dev->v4l2_dev); 957 958 return 1; 959 } 960 961 /* This function ensures that video frames continue to be delivered even if 962 the ITU-656 input isn't receiving any data (thereby preventing applications 963 such as tvtime from hanging) */ 964 static void au0828_vid_buffer_timeout(unsigned long data) 965 { 966 struct au0828_dev *dev = (struct au0828_dev *) data; 967 struct au0828_dmaqueue *dma_q = &dev->vidq; 968 struct au0828_buffer *buf; 969 unsigned char *vid_data; 970 unsigned long flags = 0; 971 972 spin_lock_irqsave(&dev->slock, flags); 973 974 buf = dev->isoc_ctl.buf; 975 if (buf != NULL) { 976 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 977 memset(vid_data, 0x00, buf->length); /* Blank green frame */ 978 buffer_filled(dev, dma_q, buf); 979 } 980 get_next_buf(dma_q, &buf); 981 982 if (dev->vid_timeout_running == 1) 983 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 984 985 spin_unlock_irqrestore(&dev->slock, flags); 986 } 987 988 static void au0828_vbi_buffer_timeout(unsigned long data) 989 { 990 struct au0828_dev *dev = (struct au0828_dev *) data; 991 struct au0828_dmaqueue *dma_q = &dev->vbiq; 992 struct au0828_buffer *buf; 993 unsigned char *vbi_data; 994 unsigned long flags = 0; 995 996 spin_lock_irqsave(&dev->slock, flags); 997 998 buf = dev->isoc_ctl.vbi_buf; 999 if (buf != NULL) { 1000 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 1001 memset(vbi_data, 0x00, buf->length); 1002 buffer_filled(dev, dma_q, buf); 1003 } 1004 vbi_get_next_buf(dma_q, &buf); 1005 1006 if (dev->vbi_timeout_running == 1) 1007 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1008 spin_unlock_irqrestore(&dev->slock, flags); 1009 } 1010 1011 static int au0828_v4l2_open(struct file *filp) 1012 { 1013 struct au0828_dev *dev = video_drvdata(filp); 1014 int ret; 1015 1016 dprintk(1, 1017 "%s called std_set %d dev_state %ld stream users %d users %d\n", 1018 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1019 dev->streaming_users, dev->users); 1020 1021 if (mutex_lock_interruptible(&dev->lock)) 1022 return -ERESTARTSYS; 1023 1024 ret = v4l2_fh_open(filp); 1025 if (ret) { 1026 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n", 1027 __func__, ret); 1028 mutex_unlock(&dev->lock); 1029 return ret; 1030 } 1031 1032 if (dev->users == 0) { 1033 au0828_analog_stream_enable(dev); 1034 au0828_analog_stream_reset(dev); 1035 dev->stream_state = STREAM_OFF; 1036 set_bit(DEV_INITIALIZED, &dev->dev_state); 1037 } 1038 dev->users++; 1039 mutex_unlock(&dev->lock); 1040 return ret; 1041 } 1042 1043 static int au0828_v4l2_close(struct file *filp) 1044 { 1045 int ret; 1046 struct au0828_dev *dev = video_drvdata(filp); 1047 struct video_device *vdev = video_devdata(filp); 1048 1049 dprintk(1, 1050 "%s called std_set %d dev_state %ld stream users %d users %d\n", 1051 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1052 dev->streaming_users, dev->users); 1053 1054 mutex_lock(&dev->lock); 1055 if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) { 1056 /* Cancel timeout thread in case they didn't call streamoff */ 1057 dev->vid_timeout_running = 0; 1058 del_timer_sync(&dev->vid_timeout); 1059 } else if (vdev->vfl_type == VFL_TYPE_VBI && 1060 dev->vbi_timeout_running) { 1061 /* Cancel timeout thread in case they didn't call streamoff */ 1062 dev->vbi_timeout_running = 0; 1063 del_timer_sync(&dev->vbi_timeout); 1064 } 1065 1066 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) 1067 goto end; 1068 1069 if (dev->users == 1) { 1070 /* 1071 * Avoid putting tuner in sleep if DVB or ALSA are 1072 * streaming. 1073 * 1074 * On most USB devices like au0828 the tuner can 1075 * be safely put in sleep stare here if ALSA isn't 1076 * streaming. Exceptions are some very old USB tuner 1077 * models such as em28xx-based WinTV USB2 which have 1078 * a separate audio output jack. The devices that have 1079 * a separate audio output jack have analog tuners, 1080 * like Philips FM1236. Those devices are always on, 1081 * so the s_power callback are silently ignored. 1082 * So, the current logic here does the following: 1083 * Disable (put tuner to sleep) when 1084 * - ALSA and DVB aren't not streaming; 1085 * - the last V4L2 file handler is closed. 1086 * 1087 * FIXME: 1088 * 1089 * Additionally, this logic could be improved to 1090 * disable the media source if the above conditions 1091 * are met and if the device: 1092 * - doesn't have a separate audio out plug (or 1093 * - doesn't use a silicon tuner like xc2028/3028/4000/5000). 1094 * 1095 * Once this additional logic is in place, a callback 1096 * is needed to enable the media source and power on 1097 * the tuner, for radio to work. 1098 */ 1099 ret = v4l_enable_media_source(vdev); 1100 if (ret == 0) 1101 v4l2_device_call_all(&dev->v4l2_dev, 0, core, 1102 s_power, 0); 1103 dev->std_set_in_tuner_core = 0; 1104 1105 /* When close the device, set the usb intf0 into alt0 to free 1106 USB bandwidth */ 1107 ret = usb_set_interface(dev->usbdev, 0, 0); 1108 if (ret < 0) 1109 pr_info("Au0828 can't set alternate to 0!\n"); 1110 } 1111 end: 1112 _vb2_fop_release(filp, NULL); 1113 dev->users--; 1114 mutex_unlock(&dev->lock); 1115 return 0; 1116 } 1117 1118 /* Must be called with dev->lock held */ 1119 static void au0828_init_tuner(struct au0828_dev *dev) 1120 { 1121 struct v4l2_frequency f = { 1122 .frequency = dev->ctrl_freq, 1123 .type = V4L2_TUNER_ANALOG_TV, 1124 }; 1125 1126 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1127 dev->std_set_in_tuner_core, dev->dev_state); 1128 1129 if (dev->std_set_in_tuner_core) 1130 return; 1131 dev->std_set_in_tuner_core = 1; 1132 i2c_gate_ctrl(dev, 1); 1133 /* If we've never sent the standard in tuner core, do so now. 1134 We don't do this at device probe because we don't want to 1135 incur the cost of a firmware load */ 1136 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std); 1137 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 1138 i2c_gate_ctrl(dev, 0); 1139 } 1140 1141 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd, 1142 struct v4l2_format *format) 1143 { 1144 int ret; 1145 int width = format->fmt.pix.width; 1146 int height = format->fmt.pix.height; 1147 1148 /* If they are demanding a format other than the one we support, 1149 bail out (tvtime asks for UYVY and then retries with YUYV) */ 1150 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY) 1151 return -EINVAL; 1152 1153 /* format->fmt.pix.width only support 720 and height 480 */ 1154 if (width != 720) 1155 width = 720; 1156 if (height != 480) 1157 height = 480; 1158 1159 format->fmt.pix.width = width; 1160 format->fmt.pix.height = height; 1161 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1162 format->fmt.pix.bytesperline = width * 2; 1163 format->fmt.pix.sizeimage = width * height * 2; 1164 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1165 format->fmt.pix.field = V4L2_FIELD_INTERLACED; 1166 format->fmt.pix.priv = 0; 1167 1168 if (cmd == VIDIOC_TRY_FMT) 1169 return 0; 1170 1171 /* maybe set new image format, driver current only support 720*480 */ 1172 dev->width = width; 1173 dev->height = height; 1174 dev->frame_size = width * height * 2; 1175 dev->field_size = width * height; 1176 dev->bytesperline = width * 2; 1177 1178 if (dev->stream_state == STREAM_ON) { 1179 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n"); 1180 ret = au0828_stream_interrupt(dev); 1181 if (ret != 0) { 1182 dprintk(1, "error interrupting video stream!\n"); 1183 return ret; 1184 } 1185 } 1186 1187 au0828_analog_stream_enable(dev); 1188 1189 return 0; 1190 } 1191 1192 static int vidioc_querycap(struct file *file, void *priv, 1193 struct v4l2_capability *cap) 1194 { 1195 struct video_device *vdev = video_devdata(file); 1196 struct au0828_dev *dev = video_drvdata(file); 1197 1198 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1199 dev->std_set_in_tuner_core, dev->dev_state); 1200 1201 strlcpy(cap->driver, "au0828", sizeof(cap->driver)); 1202 strlcpy(cap->card, dev->board.name, sizeof(cap->card)); 1203 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info)); 1204 1205 /* set the device capabilities */ 1206 cap->device_caps = V4L2_CAP_AUDIO | 1207 V4L2_CAP_READWRITE | 1208 V4L2_CAP_STREAMING | 1209 V4L2_CAP_TUNER; 1210 if (vdev->vfl_type == VFL_TYPE_GRABBER) 1211 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE; 1212 else 1213 cap->device_caps |= V4L2_CAP_VBI_CAPTURE; 1214 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS | 1215 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE; 1216 return 0; 1217 } 1218 1219 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1220 struct v4l2_fmtdesc *f) 1221 { 1222 if (f->index) 1223 return -EINVAL; 1224 1225 dprintk(1, "%s called\n", __func__); 1226 1227 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1228 strcpy(f->description, "Packed YUV2"); 1229 1230 f->flags = 0; 1231 f->pixelformat = V4L2_PIX_FMT_UYVY; 1232 1233 return 0; 1234 } 1235 1236 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 1237 struct v4l2_format *f) 1238 { 1239 struct au0828_dev *dev = video_drvdata(file); 1240 1241 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1242 dev->std_set_in_tuner_core, dev->dev_state); 1243 1244 f->fmt.pix.width = dev->width; 1245 f->fmt.pix.height = dev->height; 1246 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1247 f->fmt.pix.bytesperline = dev->bytesperline; 1248 f->fmt.pix.sizeimage = dev->frame_size; 1249 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */ 1250 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 1251 f->fmt.pix.priv = 0; 1252 return 0; 1253 } 1254 1255 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 1256 struct v4l2_format *f) 1257 { 1258 struct au0828_dev *dev = video_drvdata(file); 1259 1260 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1261 dev->std_set_in_tuner_core, dev->dev_state); 1262 1263 return au0828_set_format(dev, VIDIOC_TRY_FMT, f); 1264 } 1265 1266 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1267 struct v4l2_format *f) 1268 { 1269 struct au0828_dev *dev = video_drvdata(file); 1270 int rc; 1271 1272 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1273 dev->std_set_in_tuner_core, dev->dev_state); 1274 1275 rc = check_dev(dev); 1276 if (rc < 0) 1277 return rc; 1278 1279 if (vb2_is_busy(&dev->vb_vidq)) { 1280 pr_info("%s queue busy\n", __func__); 1281 rc = -EBUSY; 1282 goto out; 1283 } 1284 1285 rc = au0828_set_format(dev, VIDIOC_S_FMT, f); 1286 out: 1287 return rc; 1288 } 1289 1290 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) 1291 { 1292 struct au0828_dev *dev = video_drvdata(file); 1293 1294 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1295 dev->std_set_in_tuner_core, dev->dev_state); 1296 1297 if (norm == dev->std) 1298 return 0; 1299 1300 if (dev->streaming_users > 0) 1301 return -EBUSY; 1302 1303 dev->std = norm; 1304 1305 au0828_init_tuner(dev); 1306 1307 i2c_gate_ctrl(dev, 1); 1308 1309 /* 1310 * FIXME: when we support something other than 60Hz standards, 1311 * we are going to have to make the au0828 bridge adjust the size 1312 * of its capture buffer, which is currently hardcoded at 720x480 1313 */ 1314 1315 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm); 1316 1317 i2c_gate_ctrl(dev, 0); 1318 1319 return 0; 1320 } 1321 1322 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) 1323 { 1324 struct au0828_dev *dev = video_drvdata(file); 1325 1326 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1327 dev->std_set_in_tuner_core, dev->dev_state); 1328 1329 *norm = dev->std; 1330 return 0; 1331 } 1332 1333 static int vidioc_enum_input(struct file *file, void *priv, 1334 struct v4l2_input *input) 1335 { 1336 struct au0828_dev *dev = video_drvdata(file); 1337 unsigned int tmp; 1338 1339 static const char *inames[] = { 1340 [AU0828_VMUX_UNDEFINED] = "Undefined", 1341 [AU0828_VMUX_COMPOSITE] = "Composite", 1342 [AU0828_VMUX_SVIDEO] = "S-Video", 1343 [AU0828_VMUX_CABLE] = "Cable TV", 1344 [AU0828_VMUX_TELEVISION] = "Television", 1345 [AU0828_VMUX_DVB] = "DVB", 1346 }; 1347 1348 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1349 dev->std_set_in_tuner_core, dev->dev_state); 1350 1351 tmp = input->index; 1352 1353 if (tmp >= AU0828_MAX_INPUT) 1354 return -EINVAL; 1355 if (AUVI_INPUT(tmp).type == 0) 1356 return -EINVAL; 1357 1358 input->index = tmp; 1359 strcpy(input->name, inames[AUVI_INPUT(tmp).type]); 1360 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) || 1361 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) { 1362 input->type |= V4L2_INPUT_TYPE_TUNER; 1363 input->audioset = 1; 1364 } else { 1365 input->type |= V4L2_INPUT_TYPE_CAMERA; 1366 input->audioset = 2; 1367 } 1368 1369 input->std = dev->vdev.tvnorms; 1370 1371 return 0; 1372 } 1373 1374 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1375 { 1376 struct au0828_dev *dev = video_drvdata(file); 1377 1378 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1379 dev->std_set_in_tuner_core, dev->dev_state); 1380 1381 *i = dev->ctrl_input; 1382 return 0; 1383 } 1384 1385 static void au0828_s_input(struct au0828_dev *dev, int index) 1386 { 1387 int i; 1388 1389 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1390 dev->std_set_in_tuner_core, dev->dev_state); 1391 1392 switch (AUVI_INPUT(index).type) { 1393 case AU0828_VMUX_SVIDEO: 1394 dev->input_type = AU0828_VMUX_SVIDEO; 1395 dev->ctrl_ainput = 1; 1396 break; 1397 case AU0828_VMUX_COMPOSITE: 1398 dev->input_type = AU0828_VMUX_COMPOSITE; 1399 dev->ctrl_ainput = 1; 1400 break; 1401 case AU0828_VMUX_TELEVISION: 1402 dev->input_type = AU0828_VMUX_TELEVISION; 1403 dev->ctrl_ainput = 0; 1404 break; 1405 default: 1406 dprintk(1, "unknown input type set [%d]\n", 1407 AUVI_INPUT(index).type); 1408 return; 1409 } 1410 1411 dev->ctrl_input = index; 1412 1413 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 1414 AUVI_INPUT(index).vmux, 0, 0); 1415 1416 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1417 int enable = 0; 1418 if (AUVI_INPUT(i).audio_setup == NULL) 1419 continue; 1420 1421 if (i == index) 1422 enable = 1; 1423 else 1424 enable = 0; 1425 if (enable) { 1426 (AUVI_INPUT(i).audio_setup)(dev, enable); 1427 } else { 1428 /* Make sure we leave it turned on if some 1429 other input is routed to this callback */ 1430 if ((AUVI_INPUT(i).audio_setup) != 1431 ((AUVI_INPUT(index).audio_setup))) { 1432 (AUVI_INPUT(i).audio_setup)(dev, enable); 1433 } 1434 } 1435 } 1436 1437 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 1438 AUVI_INPUT(index).amux, 0, 0); 1439 } 1440 1441 static int vidioc_s_input(struct file *file, void *priv, unsigned int index) 1442 { 1443 struct au0828_dev *dev = video_drvdata(file); 1444 struct video_device *vfd = video_devdata(file); 1445 1446 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__, 1447 index); 1448 if (index >= AU0828_MAX_INPUT) 1449 return -EINVAL; 1450 if (AUVI_INPUT(index).type == 0) 1451 return -EINVAL; 1452 1453 if (dev->ctrl_input == index) 1454 return 0; 1455 1456 au0828_s_input(dev, index); 1457 1458 /* 1459 * Input has been changed. Disable the media source 1460 * associated with the old input and enable source 1461 * for the newly set input 1462 */ 1463 v4l_disable_media_source(vfd); 1464 return v4l_enable_media_source(vfd); 1465 } 1466 1467 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a) 1468 { 1469 if (a->index > 1) 1470 return -EINVAL; 1471 1472 dprintk(1, "%s called\n", __func__); 1473 1474 if (a->index == 0) 1475 strcpy(a->name, "Television"); 1476 else 1477 strcpy(a->name, "Line in"); 1478 1479 a->capability = V4L2_AUDCAP_STEREO; 1480 return 0; 1481 } 1482 1483 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 1484 { 1485 struct au0828_dev *dev = video_drvdata(file); 1486 1487 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1488 dev->std_set_in_tuner_core, dev->dev_state); 1489 1490 a->index = dev->ctrl_ainput; 1491 if (a->index == 0) 1492 strcpy(a->name, "Television"); 1493 else 1494 strcpy(a->name, "Line in"); 1495 1496 a->capability = V4L2_AUDCAP_STEREO; 1497 return 0; 1498 } 1499 1500 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 1501 { 1502 struct au0828_dev *dev = video_drvdata(file); 1503 1504 if (a->index != dev->ctrl_ainput) 1505 return -EINVAL; 1506 1507 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1508 dev->std_set_in_tuner_core, dev->dev_state); 1509 return 0; 1510 } 1511 1512 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1513 { 1514 struct au0828_dev *dev = video_drvdata(file); 1515 struct video_device *vfd = video_devdata(file); 1516 int ret; 1517 1518 if (t->index != 0) 1519 return -EINVAL; 1520 1521 ret = v4l_enable_media_source(vfd); 1522 if (ret) 1523 return ret; 1524 1525 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1526 dev->std_set_in_tuner_core, dev->dev_state); 1527 1528 strcpy(t->name, "Auvitek tuner"); 1529 1530 au0828_init_tuner(dev); 1531 i2c_gate_ctrl(dev, 1); 1532 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 1533 i2c_gate_ctrl(dev, 0); 1534 return 0; 1535 } 1536 1537 static int vidioc_s_tuner(struct file *file, void *priv, 1538 const struct v4l2_tuner *t) 1539 { 1540 struct au0828_dev *dev = video_drvdata(file); 1541 1542 if (t->index != 0) 1543 return -EINVAL; 1544 1545 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1546 dev->std_set_in_tuner_core, dev->dev_state); 1547 1548 au0828_init_tuner(dev); 1549 i2c_gate_ctrl(dev, 1); 1550 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 1551 i2c_gate_ctrl(dev, 0); 1552 1553 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal, 1554 t->afc); 1555 1556 return 0; 1557 1558 } 1559 1560 static int vidioc_g_frequency(struct file *file, void *priv, 1561 struct v4l2_frequency *freq) 1562 { 1563 struct au0828_dev *dev = video_drvdata(file); 1564 1565 if (freq->tuner != 0) 1566 return -EINVAL; 1567 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1568 dev->std_set_in_tuner_core, dev->dev_state); 1569 freq->frequency = dev->ctrl_freq; 1570 return 0; 1571 } 1572 1573 static int vidioc_s_frequency(struct file *file, void *priv, 1574 const struct v4l2_frequency *freq) 1575 { 1576 struct au0828_dev *dev = video_drvdata(file); 1577 struct v4l2_frequency new_freq = *freq; 1578 1579 if (freq->tuner != 0) 1580 return -EINVAL; 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 au0828_init_tuner(dev); 1586 i2c_gate_ctrl(dev, 1); 1587 1588 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq); 1589 /* Get the actual set (and possibly clamped) frequency */ 1590 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq); 1591 dev->ctrl_freq = new_freq.frequency; 1592 1593 i2c_gate_ctrl(dev, 0); 1594 1595 au0828_analog_stream_reset(dev); 1596 1597 return 0; 1598 } 1599 1600 1601 /* RAW VBI ioctls */ 1602 1603 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 1604 struct v4l2_format *format) 1605 { 1606 struct au0828_dev *dev = video_drvdata(file); 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 format->fmt.vbi.samples_per_line = dev->vbi_width; 1612 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1613 format->fmt.vbi.offset = 0; 1614 format->fmt.vbi.flags = 0; 1615 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 1616 1617 format->fmt.vbi.count[0] = dev->vbi_height; 1618 format->fmt.vbi.count[1] = dev->vbi_height; 1619 format->fmt.vbi.start[0] = 21; 1620 format->fmt.vbi.start[1] = 284; 1621 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved)); 1622 1623 return 0; 1624 } 1625 1626 static int vidioc_cropcap(struct file *file, void *priv, 1627 struct v4l2_cropcap *cc) 1628 { 1629 struct au0828_dev *dev = video_drvdata(file); 1630 1631 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1632 return -EINVAL; 1633 1634 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1635 dev->std_set_in_tuner_core, dev->dev_state); 1636 1637 cc->bounds.left = 0; 1638 cc->bounds.top = 0; 1639 cc->bounds.width = dev->width; 1640 cc->bounds.height = dev->height; 1641 1642 cc->defrect = cc->bounds; 1643 1644 cc->pixelaspect.numerator = 54; 1645 cc->pixelaspect.denominator = 59; 1646 1647 return 0; 1648 } 1649 1650 #ifdef CONFIG_VIDEO_ADV_DEBUG 1651 static int vidioc_g_register(struct file *file, void *priv, 1652 struct v4l2_dbg_register *reg) 1653 { 1654 struct au0828_dev *dev = video_drvdata(file); 1655 1656 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1657 dev->std_set_in_tuner_core, dev->dev_state); 1658 1659 reg->val = au0828_read(dev, reg->reg); 1660 reg->size = 1; 1661 return 0; 1662 } 1663 1664 static int vidioc_s_register(struct file *file, void *priv, 1665 const struct v4l2_dbg_register *reg) 1666 { 1667 struct au0828_dev *dev = video_drvdata(file); 1668 1669 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1670 dev->std_set_in_tuner_core, dev->dev_state); 1671 1672 return au0828_writereg(dev, reg->reg, reg->val); 1673 } 1674 #endif 1675 1676 static int vidioc_log_status(struct file *file, void *fh) 1677 { 1678 struct video_device *vdev = video_devdata(file); 1679 1680 dprintk(1, "%s called\n", __func__); 1681 1682 v4l2_ctrl_log_status(file, fh); 1683 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status); 1684 return 0; 1685 } 1686 1687 void au0828_v4l2_suspend(struct au0828_dev *dev) 1688 { 1689 struct urb *urb; 1690 int i; 1691 1692 pr_info("stopping V4L2\n"); 1693 1694 if (dev->stream_state == STREAM_ON) { 1695 pr_info("stopping V4L2 active URBs\n"); 1696 au0828_analog_stream_disable(dev); 1697 /* stop urbs */ 1698 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1699 urb = dev->isoc_ctl.urb[i]; 1700 if (urb) { 1701 if (!irqs_disabled()) 1702 usb_kill_urb(urb); 1703 else 1704 usb_unlink_urb(urb); 1705 } 1706 } 1707 } 1708 1709 if (dev->vid_timeout_running) 1710 del_timer_sync(&dev->vid_timeout); 1711 if (dev->vbi_timeout_running) 1712 del_timer_sync(&dev->vbi_timeout); 1713 } 1714 1715 void au0828_v4l2_resume(struct au0828_dev *dev) 1716 { 1717 int i, rc; 1718 1719 pr_info("restarting V4L2\n"); 1720 1721 if (dev->stream_state == STREAM_ON) { 1722 au0828_stream_interrupt(dev); 1723 au0828_init_tuner(dev); 1724 } 1725 1726 if (dev->vid_timeout_running) 1727 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 1728 if (dev->vbi_timeout_running) 1729 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1730 1731 /* If we were doing ac97 instead of i2s, it would go here...*/ 1732 au0828_i2s_init(dev); 1733 1734 au0828_analog_stream_enable(dev); 1735 1736 if (!(dev->stream_state == STREAM_ON)) { 1737 au0828_analog_stream_reset(dev); 1738 /* submit urbs */ 1739 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1740 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 1741 if (rc) { 1742 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 1743 i, rc); 1744 au0828_uninit_isoc(dev); 1745 } 1746 } 1747 } 1748 } 1749 1750 static struct v4l2_file_operations au0828_v4l_fops = { 1751 .owner = THIS_MODULE, 1752 .open = au0828_v4l2_open, 1753 .release = au0828_v4l2_close, 1754 .read = vb2_fop_read, 1755 .poll = vb2_fop_poll, 1756 .mmap = vb2_fop_mmap, 1757 .unlocked_ioctl = video_ioctl2, 1758 }; 1759 1760 static const struct v4l2_ioctl_ops video_ioctl_ops = { 1761 .vidioc_querycap = vidioc_querycap, 1762 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1763 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1764 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1765 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1766 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1767 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1768 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1769 .vidioc_enumaudio = vidioc_enumaudio, 1770 .vidioc_g_audio = vidioc_g_audio, 1771 .vidioc_s_audio = vidioc_s_audio, 1772 .vidioc_cropcap = vidioc_cropcap, 1773 1774 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1775 .vidioc_create_bufs = vb2_ioctl_create_bufs, 1776 .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 1777 .vidioc_querybuf = vb2_ioctl_querybuf, 1778 .vidioc_qbuf = vb2_ioctl_qbuf, 1779 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1780 .vidioc_expbuf = vb2_ioctl_expbuf, 1781 1782 .vidioc_s_std = vidioc_s_std, 1783 .vidioc_g_std = vidioc_g_std, 1784 .vidioc_enum_input = vidioc_enum_input, 1785 .vidioc_g_input = vidioc_g_input, 1786 .vidioc_s_input = vidioc_s_input, 1787 1788 .vidioc_streamon = vb2_ioctl_streamon, 1789 .vidioc_streamoff = vb2_ioctl_streamoff, 1790 1791 .vidioc_g_tuner = vidioc_g_tuner, 1792 .vidioc_s_tuner = vidioc_s_tuner, 1793 .vidioc_g_frequency = vidioc_g_frequency, 1794 .vidioc_s_frequency = vidioc_s_frequency, 1795 #ifdef CONFIG_VIDEO_ADV_DEBUG 1796 .vidioc_g_register = vidioc_g_register, 1797 .vidioc_s_register = vidioc_s_register, 1798 #endif 1799 .vidioc_log_status = vidioc_log_status, 1800 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1801 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1802 }; 1803 1804 static const struct video_device au0828_video_template = { 1805 .fops = &au0828_v4l_fops, 1806 .release = video_device_release_empty, 1807 .ioctl_ops = &video_ioctl_ops, 1808 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M, 1809 }; 1810 1811 static int au0828_vb2_setup(struct au0828_dev *dev) 1812 { 1813 int rc; 1814 struct vb2_queue *q; 1815 1816 /* Setup Videobuf2 for Video capture */ 1817 q = &dev->vb_vidq; 1818 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1819 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1820 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1821 q->drv_priv = dev; 1822 q->buf_struct_size = sizeof(struct au0828_buffer); 1823 q->ops = &au0828_video_qops; 1824 q->mem_ops = &vb2_vmalloc_memops; 1825 1826 rc = vb2_queue_init(q); 1827 if (rc < 0) 1828 return rc; 1829 1830 /* Setup Videobuf2 for VBI capture */ 1831 q = &dev->vb_vbiq; 1832 q->type = V4L2_BUF_TYPE_VBI_CAPTURE; 1833 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1834 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1835 q->drv_priv = dev; 1836 q->buf_struct_size = sizeof(struct au0828_buffer); 1837 q->ops = &au0828_vbi_qops; 1838 q->mem_ops = &vb2_vmalloc_memops; 1839 1840 rc = vb2_queue_init(q); 1841 if (rc < 0) 1842 return rc; 1843 1844 return 0; 1845 } 1846 1847 static void au0828_analog_create_entities(struct au0828_dev *dev) 1848 { 1849 #if defined(CONFIG_MEDIA_CONTROLLER) 1850 static const char * const inames[] = { 1851 [AU0828_VMUX_COMPOSITE] = "Composite", 1852 [AU0828_VMUX_SVIDEO] = "S-Video", 1853 [AU0828_VMUX_CABLE] = "Cable TV", 1854 [AU0828_VMUX_TELEVISION] = "Television", 1855 [AU0828_VMUX_DVB] = "DVB", 1856 }; 1857 int ret, i; 1858 1859 /* Initialize Video and VBI pads */ 1860 dev->video_pad.flags = MEDIA_PAD_FL_SINK; 1861 ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad); 1862 if (ret < 0) 1863 pr_err("failed to initialize video media entity!\n"); 1864 1865 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK; 1866 ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad); 1867 if (ret < 0) 1868 pr_err("failed to initialize vbi media entity!\n"); 1869 1870 /* Create entities for each input connector */ 1871 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1872 struct media_entity *ent = &dev->input_ent[i]; 1873 1874 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) 1875 break; 1876 1877 ent->name = inames[AUVI_INPUT(i).type]; 1878 ent->flags = MEDIA_ENT_FL_CONNECTOR; 1879 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE; 1880 1881 switch (AUVI_INPUT(i).type) { 1882 case AU0828_VMUX_COMPOSITE: 1883 ent->function = MEDIA_ENT_F_CONN_COMPOSITE; 1884 break; 1885 case AU0828_VMUX_SVIDEO: 1886 ent->function = MEDIA_ENT_F_CONN_SVIDEO; 1887 break; 1888 case AU0828_VMUX_CABLE: 1889 case AU0828_VMUX_TELEVISION: 1890 case AU0828_VMUX_DVB: 1891 default: /* Just to shut up a warning */ 1892 ent->function = MEDIA_ENT_F_CONN_RF; 1893 break; 1894 } 1895 1896 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]); 1897 if (ret < 0) 1898 pr_err("failed to initialize input pad[%d]!\n", i); 1899 1900 ret = media_device_register_entity(dev->media_dev, ent); 1901 if (ret < 0) 1902 pr_err("failed to register input entity %d!\n", i); 1903 } 1904 #endif 1905 } 1906 1907 /**************************************************************************/ 1908 1909 int au0828_analog_register(struct au0828_dev *dev, 1910 struct usb_interface *interface) 1911 { 1912 int retval = -ENOMEM; 1913 struct usb_host_interface *iface_desc; 1914 struct usb_endpoint_descriptor *endpoint; 1915 int i, ret; 1916 1917 dprintk(1, "au0828_analog_register called for intf#%d!\n", 1918 interface->cur_altsetting->desc.bInterfaceNumber); 1919 1920 /* No analog TV */ 1921 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 1922 return 0; 1923 1924 /* set au0828 usb interface0 to as5 */ 1925 retval = usb_set_interface(dev->usbdev, 1926 interface->cur_altsetting->desc.bInterfaceNumber, 5); 1927 if (retval != 0) { 1928 pr_info("Failure setting usb interface0 to as5\n"); 1929 return retval; 1930 } 1931 1932 /* Figure out which endpoint has the isoc interface */ 1933 iface_desc = interface->cur_altsetting; 1934 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { 1935 endpoint = &iface_desc->endpoint[i].desc; 1936 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1937 == USB_DIR_IN) && 1938 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1939 == USB_ENDPOINT_XFER_ISOC)) { 1940 1941 /* we find our isoc in endpoint */ 1942 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize); 1943 dev->max_pkt_size = (tmp & 0x07ff) * 1944 (((tmp & 0x1800) >> 11) + 1); 1945 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress; 1946 dprintk(1, 1947 "Found isoc endpoint 0x%02x, max size = %d\n", 1948 dev->isoc_in_endpointaddr, dev->max_pkt_size); 1949 } 1950 } 1951 if (!(dev->isoc_in_endpointaddr)) { 1952 pr_info("Could not locate isoc endpoint\n"); 1953 return -ENODEV; 1954 } 1955 1956 init_waitqueue_head(&dev->open); 1957 spin_lock_init(&dev->slock); 1958 1959 /* init video dma queues */ 1960 INIT_LIST_HEAD(&dev->vidq.active); 1961 INIT_LIST_HEAD(&dev->vbiq.active); 1962 1963 setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout, 1964 (unsigned long)dev); 1965 setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 1966 (unsigned long)dev); 1967 1968 dev->width = NTSC_STD_W; 1969 dev->height = NTSC_STD_H; 1970 dev->field_size = dev->width * dev->height; 1971 dev->frame_size = dev->field_size << 1; 1972 dev->bytesperline = dev->width << 1; 1973 dev->vbi_width = 720; 1974 dev->vbi_height = 1; 1975 dev->ctrl_ainput = 0; 1976 dev->ctrl_freq = 960; 1977 dev->std = V4L2_STD_NTSC_M; 1978 /* Default input is TV Tuner */ 1979 au0828_s_input(dev, 0); 1980 1981 mutex_init(&dev->vb_queue_lock); 1982 mutex_init(&dev->vb_vbi_queue_lock); 1983 1984 /* Fill the video capture device struct */ 1985 dev->vdev = au0828_video_template; 1986 dev->vdev.v4l2_dev = &dev->v4l2_dev; 1987 dev->vdev.lock = &dev->lock; 1988 dev->vdev.queue = &dev->vb_vidq; 1989 dev->vdev.queue->lock = &dev->vb_queue_lock; 1990 strcpy(dev->vdev.name, "au0828a video"); 1991 1992 /* Setup the VBI device */ 1993 dev->vbi_dev = au0828_video_template; 1994 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev; 1995 dev->vbi_dev.lock = &dev->lock; 1996 dev->vbi_dev.queue = &dev->vb_vbiq; 1997 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock; 1998 strcpy(dev->vbi_dev.name, "au0828a vbi"); 1999 2000 /* Init entities at the Media Controller */ 2001 au0828_analog_create_entities(dev); 2002 2003 /* initialize videobuf2 stuff */ 2004 retval = au0828_vb2_setup(dev); 2005 if (retval != 0) { 2006 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n", 2007 retval); 2008 return -ENODEV; 2009 } 2010 2011 /* Register the v4l2 device */ 2012 video_set_drvdata(&dev->vdev, dev); 2013 retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1); 2014 if (retval != 0) { 2015 dprintk(1, "unable to register video device (error = %d).\n", 2016 retval); 2017 ret = -ENODEV; 2018 goto err_reg_vdev; 2019 } 2020 2021 /* Register the vbi device */ 2022 video_set_drvdata(&dev->vbi_dev, dev); 2023 retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1); 2024 if (retval != 0) { 2025 dprintk(1, "unable to register vbi device (error = %d).\n", 2026 retval); 2027 ret = -ENODEV; 2028 goto err_reg_vbi_dev; 2029 } 2030 2031 #ifdef CONFIG_MEDIA_CONTROLLER 2032 retval = v4l2_mc_create_media_graph(dev->media_dev); 2033 if (retval) { 2034 pr_err("%s() au0282_dev_register failed to create graph\n", 2035 __func__); 2036 ret = -ENODEV; 2037 goto err_reg_vbi_dev; 2038 } 2039 #endif 2040 2041 dprintk(1, "%s completed!\n", __func__); 2042 2043 return 0; 2044 2045 err_reg_vbi_dev: 2046 video_unregister_device(&dev->vdev); 2047 err_reg_vdev: 2048 vb2_queue_release(&dev->vb_vidq); 2049 vb2_queue_release(&dev->vb_vbiq); 2050 return ret; 2051 } 2052 2053