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 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 20 * 02110-1301, USA. 21 */ 22 23 /* Developer Notes: 24 * 25 * The hardware scaler supported is unimplemented 26 * AC97 audio support is unimplemented (only i2s audio mode) 27 * 28 */ 29 30 #include "au0828.h" 31 #include "au8522.h" 32 33 #include <linux/module.h> 34 #include <linux/slab.h> 35 #include <linux/init.h> 36 #include <linux/device.h> 37 #include <media/v4l2-common.h> 38 #include <media/v4l2-mc.h> 39 #include <media/v4l2-ioctl.h> 40 #include <media/v4l2-event.h> 41 #include <media/tuner.h> 42 #include "au0828-reg.h" 43 44 static DEFINE_MUTEX(au0828_sysfs_lock); 45 46 /* ------------------------------------------------------------------ 47 Videobuf operations 48 ------------------------------------------------------------------*/ 49 50 static unsigned int isoc_debug; 51 module_param(isoc_debug, int, 0644); 52 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); 53 54 #define au0828_isocdbg(fmt, arg...) \ 55 do {\ 56 if (isoc_debug) { \ 57 pr_info("au0828 %s :"fmt, \ 58 __func__ , ##arg); \ 59 } \ 60 } while (0) 61 62 static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val) 63 { 64 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl) 65 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val); 66 } 67 68 static inline void print_err_status(struct au0828_dev *dev, 69 int packet, int status) 70 { 71 char *errmsg = "Unknown"; 72 73 switch (status) { 74 case -ENOENT: 75 errmsg = "unlinked synchronuously"; 76 break; 77 case -ECONNRESET: 78 errmsg = "unlinked asynchronuously"; 79 break; 80 case -ENOSR: 81 errmsg = "Buffer error (overrun)"; 82 break; 83 case -EPIPE: 84 errmsg = "Stalled (device not responding)"; 85 break; 86 case -EOVERFLOW: 87 errmsg = "Babble (bad cable?)"; 88 break; 89 case -EPROTO: 90 errmsg = "Bit-stuff error (bad cable?)"; 91 break; 92 case -EILSEQ: 93 errmsg = "CRC/Timeout (could be anything)"; 94 break; 95 case -ETIME: 96 errmsg = "Device does not respond"; 97 break; 98 } 99 if (packet < 0) { 100 au0828_isocdbg("URB status %d [%s].\n", status, errmsg); 101 } else { 102 au0828_isocdbg("URB packet %d, status %d [%s].\n", 103 packet, status, errmsg); 104 } 105 } 106 107 static int check_dev(struct au0828_dev *dev) 108 { 109 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) { 110 pr_info("v4l2 ioctl: device not present\n"); 111 return -ENODEV; 112 } 113 114 if (test_bit(DEV_MISCONFIGURED, &dev->dev_state)) { 115 pr_info("v4l2 ioctl: device is misconfigured; close and open it again\n"); 116 return -EIO; 117 } 118 return 0; 119 } 120 121 /* 122 * IRQ callback, called by URB callback 123 */ 124 static void au0828_irq_callback(struct urb *urb) 125 { 126 struct au0828_dmaqueue *dma_q = urb->context; 127 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 128 unsigned long flags = 0; 129 int i; 130 131 switch (urb->status) { 132 case 0: /* success */ 133 case -ETIMEDOUT: /* NAK */ 134 break; 135 case -ECONNRESET: /* kill */ 136 case -ENOENT: 137 case -ESHUTDOWN: 138 au0828_isocdbg("au0828_irq_callback called: status kill\n"); 139 return; 140 default: /* unknown error */ 141 au0828_isocdbg("urb completition error %d.\n", urb->status); 142 break; 143 } 144 145 /* Copy data from URB */ 146 spin_lock_irqsave(&dev->slock, flags); 147 dev->isoc_ctl.isoc_copy(dev, urb); 148 spin_unlock_irqrestore(&dev->slock, flags); 149 150 /* Reset urb buffers */ 151 for (i = 0; i < urb->number_of_packets; i++) { 152 urb->iso_frame_desc[i].status = 0; 153 urb->iso_frame_desc[i].actual_length = 0; 154 } 155 urb->status = 0; 156 157 urb->status = usb_submit_urb(urb, GFP_ATOMIC); 158 if (urb->status) { 159 au0828_isocdbg("urb resubmit failed (error=%i)\n", 160 urb->status); 161 } 162 dev->stream_state = STREAM_ON; 163 } 164 165 /* 166 * Stop and Deallocate URBs 167 */ 168 static void au0828_uninit_isoc(struct au0828_dev *dev) 169 { 170 struct urb *urb; 171 int i; 172 173 au0828_isocdbg("au0828: called au0828_uninit_isoc\n"); 174 175 dev->isoc_ctl.nfields = -1; 176 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 177 urb = dev->isoc_ctl.urb[i]; 178 if (urb) { 179 if (!irqs_disabled()) 180 usb_kill_urb(urb); 181 else 182 usb_unlink_urb(urb); 183 184 if (dev->isoc_ctl.transfer_buffer[i]) { 185 usb_free_coherent(dev->usbdev, 186 urb->transfer_buffer_length, 187 dev->isoc_ctl.transfer_buffer[i], 188 urb->transfer_dma); 189 } 190 usb_free_urb(urb); 191 dev->isoc_ctl.urb[i] = NULL; 192 } 193 dev->isoc_ctl.transfer_buffer[i] = NULL; 194 } 195 196 kfree(dev->isoc_ctl.urb); 197 kfree(dev->isoc_ctl.transfer_buffer); 198 199 dev->isoc_ctl.urb = NULL; 200 dev->isoc_ctl.transfer_buffer = NULL; 201 dev->isoc_ctl.num_bufs = 0; 202 203 dev->stream_state = STREAM_OFF; 204 } 205 206 /* 207 * Allocate URBs and start IRQ 208 */ 209 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets, 210 int num_bufs, int max_pkt_size, 211 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb)) 212 { 213 struct au0828_dmaqueue *dma_q = &dev->vidq; 214 int i; 215 int sb_size, pipe; 216 struct urb *urb; 217 int j, k; 218 int rc; 219 220 au0828_isocdbg("au0828: called au0828_prepare_isoc\n"); 221 222 dev->isoc_ctl.isoc_copy = isoc_copy; 223 dev->isoc_ctl.num_bufs = num_bufs; 224 225 dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL); 226 if (!dev->isoc_ctl.urb) { 227 au0828_isocdbg("cannot alloc memory for usb buffers\n"); 228 return -ENOMEM; 229 } 230 231 dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs, 232 GFP_KERNEL); 233 if (!dev->isoc_ctl.transfer_buffer) { 234 au0828_isocdbg("cannot allocate memory for usb transfer\n"); 235 kfree(dev->isoc_ctl.urb); 236 return -ENOMEM; 237 } 238 239 dev->isoc_ctl.max_pkt_size = max_pkt_size; 240 dev->isoc_ctl.buf = NULL; 241 242 sb_size = max_packets * dev->isoc_ctl.max_pkt_size; 243 244 /* allocate urbs and transfer buffers */ 245 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 246 urb = usb_alloc_urb(max_packets, GFP_KERNEL); 247 if (!urb) { 248 au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i); 249 au0828_uninit_isoc(dev); 250 return -ENOMEM; 251 } 252 dev->isoc_ctl.urb[i] = urb; 253 254 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev, 255 sb_size, GFP_KERNEL, &urb->transfer_dma); 256 if (!dev->isoc_ctl.transfer_buffer[i]) { 257 printk("unable to allocate %i bytes for transfer" 258 " buffer %i%s\n", 259 sb_size, i, 260 in_interrupt() ? " while in int" : ""); 261 au0828_uninit_isoc(dev); 262 return -ENOMEM; 263 } 264 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size); 265 266 pipe = usb_rcvisocpipe(dev->usbdev, 267 dev->isoc_in_endpointaddr), 268 269 usb_fill_int_urb(urb, dev->usbdev, pipe, 270 dev->isoc_ctl.transfer_buffer[i], sb_size, 271 au0828_irq_callback, dma_q, 1); 272 273 urb->number_of_packets = max_packets; 274 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; 275 276 k = 0; 277 for (j = 0; j < max_packets; j++) { 278 urb->iso_frame_desc[j].offset = k; 279 urb->iso_frame_desc[j].length = 280 dev->isoc_ctl.max_pkt_size; 281 k += dev->isoc_ctl.max_pkt_size; 282 } 283 } 284 285 /* submit urbs and enables IRQ */ 286 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 287 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 288 if (rc) { 289 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 290 i, rc); 291 au0828_uninit_isoc(dev); 292 return rc; 293 } 294 } 295 296 return 0; 297 } 298 299 /* 300 * Announces that a buffer were filled and request the next 301 */ 302 static inline void buffer_filled(struct au0828_dev *dev, 303 struct au0828_dmaqueue *dma_q, 304 struct au0828_buffer *buf) 305 { 306 struct vb2_v4l2_buffer *vb = &buf->vb; 307 struct vb2_queue *q = vb->vb2_buf.vb2_queue; 308 309 /* Advice that buffer was filled */ 310 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field); 311 312 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 313 vb->sequence = dev->frame_count++; 314 else 315 vb->sequence = dev->vbi_frame_count++; 316 317 vb->field = V4L2_FIELD_INTERLACED; 318 vb->vb2_buf.timestamp = ktime_get_ns(); 319 vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE); 320 } 321 322 /* 323 * Identify the buffer header type and properly handles 324 */ 325 static void au0828_copy_video(struct au0828_dev *dev, 326 struct au0828_dmaqueue *dma_q, 327 struct au0828_buffer *buf, 328 unsigned char *p, 329 unsigned char *outp, unsigned long len) 330 { 331 void *fieldstart, *startwrite, *startread; 332 int linesdone, currlinedone, offset, lencopy, remain; 333 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */ 334 335 if (len == 0) 336 return; 337 338 if (dma_q->pos + len > buf->length) 339 len = buf->length - dma_q->pos; 340 341 startread = p; 342 remain = len; 343 344 /* Interlaces frame */ 345 if (buf->top_field) 346 fieldstart = outp; 347 else 348 fieldstart = outp + bytesperline; 349 350 linesdone = dma_q->pos / bytesperline; 351 currlinedone = dma_q->pos % bytesperline; 352 offset = linesdone * bytesperline * 2 + currlinedone; 353 startwrite = fieldstart + offset; 354 lencopy = bytesperline - currlinedone; 355 lencopy = lencopy > remain ? remain : lencopy; 356 357 if ((char *)startwrite + lencopy > (char *)outp + buf->length) { 358 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n", 359 ((char *)startwrite + lencopy) - 360 ((char *)outp + buf->length)); 361 remain = (char *)outp + buf->length - (char *)startwrite; 362 lencopy = remain; 363 } 364 if (lencopy <= 0) 365 return; 366 memcpy(startwrite, startread, lencopy); 367 368 remain -= lencopy; 369 370 while (remain > 0) { 371 startwrite += lencopy + bytesperline; 372 startread += lencopy; 373 if (bytesperline > remain) 374 lencopy = remain; 375 else 376 lencopy = bytesperline; 377 378 if ((char *)startwrite + lencopy > (char *)outp + 379 buf->length) { 380 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n", 381 ((char *)startwrite + lencopy) - 382 ((char *)outp + buf->length)); 383 lencopy = remain = (char *)outp + buf->length - 384 (char *)startwrite; 385 } 386 if (lencopy <= 0) 387 break; 388 389 memcpy(startwrite, startread, lencopy); 390 391 remain -= lencopy; 392 } 393 394 if (offset > 1440) { 395 /* We have enough data to check for greenscreen */ 396 if (outp[0] < 0x60 && outp[1440] < 0x60) 397 dev->greenscreen_detected = 1; 398 } 399 400 dma_q->pos += len; 401 } 402 403 /* 404 * video-buf generic routine to get the next available buffer 405 */ 406 static inline void get_next_buf(struct au0828_dmaqueue *dma_q, 407 struct au0828_buffer **buf) 408 { 409 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 410 411 if (list_empty(&dma_q->active)) { 412 au0828_isocdbg("No active queue to serve\n"); 413 dev->isoc_ctl.buf = NULL; 414 *buf = NULL; 415 return; 416 } 417 418 /* Get the next buffer */ 419 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 420 /* Cleans up buffer - Useful for testing for frame/URB loss */ 421 list_del(&(*buf)->list); 422 dma_q->pos = 0; 423 (*buf)->vb_buf = (*buf)->mem; 424 dev->isoc_ctl.buf = *buf; 425 426 return; 427 } 428 429 static void au0828_copy_vbi(struct au0828_dev *dev, 430 struct au0828_dmaqueue *dma_q, 431 struct au0828_buffer *buf, 432 unsigned char *p, 433 unsigned char *outp, unsigned long len) 434 { 435 unsigned char *startwrite, *startread; 436 int bytesperline; 437 int i, j = 0; 438 439 if (dev == NULL) { 440 au0828_isocdbg("dev is null\n"); 441 return; 442 } 443 444 if (dma_q == NULL) { 445 au0828_isocdbg("dma_q is null\n"); 446 return; 447 } 448 if (buf == NULL) 449 return; 450 if (p == NULL) { 451 au0828_isocdbg("p is null\n"); 452 return; 453 } 454 if (outp == NULL) { 455 au0828_isocdbg("outp is null\n"); 456 return; 457 } 458 459 bytesperline = dev->vbi_width; 460 461 if (dma_q->pos + len > buf->length) 462 len = buf->length - dma_q->pos; 463 464 startread = p; 465 startwrite = outp + (dma_q->pos / 2); 466 467 /* Make sure the bottom field populates the second half of the frame */ 468 if (buf->top_field == 0) 469 startwrite += bytesperline * dev->vbi_height; 470 471 for (i = 0; i < len; i += 2) 472 startwrite[j++] = startread[i+1]; 473 474 dma_q->pos += len; 475 } 476 477 478 /* 479 * video-buf generic routine to get the next available VBI buffer 480 */ 481 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q, 482 struct au0828_buffer **buf) 483 { 484 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq); 485 486 if (list_empty(&dma_q->active)) { 487 au0828_isocdbg("No active queue to serve\n"); 488 dev->isoc_ctl.vbi_buf = NULL; 489 *buf = NULL; 490 return; 491 } 492 493 /* Get the next buffer */ 494 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 495 /* Cleans up buffer - Useful for testing for frame/URB loss */ 496 list_del(&(*buf)->list); 497 dma_q->pos = 0; 498 (*buf)->vb_buf = (*buf)->mem; 499 dev->isoc_ctl.vbi_buf = *buf; 500 return; 501 } 502 503 /* 504 * Controls the isoc copy of each urb packet 505 */ 506 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb) 507 { 508 struct au0828_buffer *buf; 509 struct au0828_buffer *vbi_buf; 510 struct au0828_dmaqueue *dma_q = urb->context; 511 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq; 512 unsigned char *outp = NULL; 513 unsigned char *vbioutp = NULL; 514 int i, len = 0, rc = 1; 515 unsigned char *p; 516 unsigned char fbyte; 517 unsigned int vbi_field_size; 518 unsigned int remain, lencopy; 519 520 if (!dev) 521 return 0; 522 523 if (test_bit(DEV_DISCONNECTED, &dev->dev_state) || 524 test_bit(DEV_MISCONFIGURED, &dev->dev_state)) 525 return 0; 526 527 if (urb->status < 0) { 528 print_err_status(dev, -1, urb->status); 529 if (urb->status == -ENOENT) 530 return 0; 531 } 532 533 buf = dev->isoc_ctl.buf; 534 if (buf != NULL) 535 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 536 537 vbi_buf = dev->isoc_ctl.vbi_buf; 538 if (vbi_buf != NULL) 539 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0); 540 541 for (i = 0; i < urb->number_of_packets; i++) { 542 int status = urb->iso_frame_desc[i].status; 543 544 if (status < 0) { 545 print_err_status(dev, i, status); 546 if (urb->iso_frame_desc[i].status != -EPROTO) 547 continue; 548 } 549 550 if (urb->iso_frame_desc[i].actual_length <= 0) 551 continue; 552 553 if (urb->iso_frame_desc[i].actual_length > 554 dev->max_pkt_size) { 555 au0828_isocdbg("packet bigger than packet size"); 556 continue; 557 } 558 559 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset; 560 fbyte = p[0]; 561 len = urb->iso_frame_desc[i].actual_length - 4; 562 p += 4; 563 564 if (fbyte & 0x80) { 565 len -= 4; 566 p += 4; 567 au0828_isocdbg("Video frame %s\n", 568 (fbyte & 0x40) ? "odd" : "even"); 569 if (fbyte & 0x40) { 570 /* VBI */ 571 if (vbi_buf != NULL) 572 buffer_filled(dev, vbi_dma_q, vbi_buf); 573 vbi_get_next_buf(vbi_dma_q, &vbi_buf); 574 if (vbi_buf == NULL) 575 vbioutp = NULL; 576 else 577 vbioutp = vb2_plane_vaddr( 578 &vbi_buf->vb.vb2_buf, 0); 579 580 /* Video */ 581 if (buf != NULL) 582 buffer_filled(dev, dma_q, buf); 583 get_next_buf(dma_q, &buf); 584 if (buf == NULL) 585 outp = NULL; 586 else 587 outp = vb2_plane_vaddr( 588 &buf->vb.vb2_buf, 0); 589 590 /* As long as isoc traffic is arriving, keep 591 resetting the timer */ 592 if (dev->vid_timeout_running) 593 mod_timer(&dev->vid_timeout, 594 jiffies + (HZ / 10)); 595 if (dev->vbi_timeout_running) 596 mod_timer(&dev->vbi_timeout, 597 jiffies + (HZ / 10)); 598 } 599 600 if (buf != NULL) { 601 if (fbyte & 0x40) 602 buf->top_field = 1; 603 else 604 buf->top_field = 0; 605 } 606 607 if (vbi_buf != NULL) { 608 if (fbyte & 0x40) 609 vbi_buf->top_field = 1; 610 else 611 vbi_buf->top_field = 0; 612 } 613 614 dev->vbi_read = 0; 615 vbi_dma_q->pos = 0; 616 dma_q->pos = 0; 617 } 618 619 vbi_field_size = dev->vbi_width * dev->vbi_height * 2; 620 if (dev->vbi_read < vbi_field_size) { 621 remain = vbi_field_size - dev->vbi_read; 622 if (len < remain) 623 lencopy = len; 624 else 625 lencopy = remain; 626 627 if (vbi_buf != NULL) 628 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p, 629 vbioutp, len); 630 631 len -= lencopy; 632 p += lencopy; 633 dev->vbi_read += lencopy; 634 } 635 636 if (dev->vbi_read >= vbi_field_size && buf != NULL) 637 au0828_copy_video(dev, dma_q, buf, p, outp, len); 638 } 639 return rc; 640 } 641 642 void au0828_usb_v4l2_media_release(struct au0828_dev *dev) 643 { 644 #ifdef CONFIG_MEDIA_CONTROLLER 645 int i; 646 647 for (i = 0; i < AU0828_MAX_INPUT; i++) { 648 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) 649 return; 650 media_device_unregister_entity(&dev->input_ent[i]); 651 } 652 #endif 653 } 654 655 static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev) 656 { 657 struct au0828_dev *dev = 658 container_of(v4l2_dev, struct au0828_dev, v4l2_dev); 659 660 v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl); 661 v4l2_device_unregister(&dev->v4l2_dev); 662 au0828_usb_v4l2_media_release(dev); 663 au0828_usb_release(dev); 664 } 665 666 int au0828_v4l2_device_register(struct usb_interface *interface, 667 struct au0828_dev *dev) 668 { 669 int retval; 670 671 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 672 return 0; 673 674 /* Create the v4l2_device */ 675 #ifdef CONFIG_MEDIA_CONTROLLER 676 dev->v4l2_dev.mdev = dev->media_dev; 677 #endif 678 retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev); 679 if (retval) { 680 pr_err("%s() v4l2_device_register failed\n", 681 __func__); 682 mutex_unlock(&dev->lock); 683 kfree(dev); 684 return retval; 685 } 686 687 dev->v4l2_dev.release = au0828_usb_v4l2_release; 688 689 /* This control handler will inherit the controls from au8522 */ 690 retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4); 691 if (retval) { 692 pr_err("%s() v4l2_ctrl_handler_init failed\n", 693 __func__); 694 mutex_unlock(&dev->lock); 695 kfree(dev); 696 return retval; 697 } 698 dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl; 699 700 return 0; 701 } 702 703 static int queue_setup(struct vb2_queue *vq, 704 unsigned int *nbuffers, unsigned int *nplanes, 705 unsigned int sizes[], void *alloc_ctxs[]) 706 { 707 struct au0828_dev *dev = vb2_get_drv_priv(vq); 708 unsigned long size = dev->height * dev->bytesperline; 709 710 if (*nplanes) 711 return sizes[0] < size ? -EINVAL : 0; 712 *nplanes = 1; 713 sizes[0] = size; 714 return 0; 715 } 716 717 static int 718 buffer_prepare(struct vb2_buffer *vb) 719 { 720 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 721 struct au0828_buffer *buf = container_of(vbuf, 722 struct au0828_buffer, vb); 723 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 724 725 buf->length = dev->height * dev->bytesperline; 726 727 if (vb2_plane_size(vb, 0) < buf->length) { 728 pr_err("%s data will not fit into plane (%lu < %lu)\n", 729 __func__, vb2_plane_size(vb, 0), buf->length); 730 return -EINVAL; 731 } 732 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length); 733 return 0; 734 } 735 736 static void 737 buffer_queue(struct vb2_buffer *vb) 738 { 739 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 740 struct au0828_buffer *buf = container_of(vbuf, 741 struct au0828_buffer, 742 vb); 743 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 744 struct au0828_dmaqueue *vidq = &dev->vidq; 745 unsigned long flags = 0; 746 747 buf->mem = vb2_plane_vaddr(vb, 0); 748 buf->length = vb2_plane_size(vb, 0); 749 750 spin_lock_irqsave(&dev->slock, flags); 751 list_add_tail(&buf->list, &vidq->active); 752 spin_unlock_irqrestore(&dev->slock, flags); 753 } 754 755 static int au0828_i2s_init(struct au0828_dev *dev) 756 { 757 /* Enable i2s mode */ 758 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01); 759 return 0; 760 } 761 762 /* 763 * Auvitek au0828 analog stream enable 764 */ 765 static int au0828_analog_stream_enable(struct au0828_dev *d) 766 { 767 struct usb_interface *iface; 768 int ret, h, w; 769 770 dprintk(1, "au0828_analog_stream_enable called\n"); 771 772 iface = usb_ifnum_to_if(d->usbdev, 0); 773 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) { 774 dprintk(1, "Changing intf#0 to alt 5\n"); 775 /* set au0828 interface0 to AS5 here again */ 776 ret = usb_set_interface(d->usbdev, 0, 5); 777 if (ret < 0) { 778 pr_info("Au0828 can't set alt setting to 5!\n"); 779 return -EBUSY; 780 } 781 } 782 783 h = d->height / 2 + 2; 784 w = d->width * 2; 785 786 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00); 787 au0828_writereg(d, 0x106, 0x00); 788 /* set x position */ 789 au0828_writereg(d, 0x110, 0x00); 790 au0828_writereg(d, 0x111, 0x00); 791 au0828_writereg(d, 0x114, w & 0xff); 792 au0828_writereg(d, 0x115, w >> 8); 793 /* set y position */ 794 au0828_writereg(d, 0x112, 0x00); 795 au0828_writereg(d, 0x113, 0x00); 796 au0828_writereg(d, 0x116, h & 0xff); 797 au0828_writereg(d, 0x117, h >> 8); 798 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3); 799 800 return 0; 801 } 802 803 static int au0828_analog_stream_disable(struct au0828_dev *d) 804 { 805 dprintk(1, "au0828_analog_stream_disable called\n"); 806 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0); 807 return 0; 808 } 809 810 static void au0828_analog_stream_reset(struct au0828_dev *dev) 811 { 812 dprintk(1, "au0828_analog_stream_reset called\n"); 813 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0); 814 mdelay(30); 815 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3); 816 } 817 818 /* 819 * Some operations needs to stop current streaming 820 */ 821 static int au0828_stream_interrupt(struct au0828_dev *dev) 822 { 823 int ret = 0; 824 825 dev->stream_state = STREAM_INTERRUPT; 826 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) 827 return -ENODEV; 828 else if (ret) { 829 set_bit(DEV_MISCONFIGURED, &dev->dev_state); 830 dprintk(1, "%s device is misconfigured!\n", __func__); 831 return ret; 832 } 833 return 0; 834 } 835 836 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count) 837 { 838 struct au0828_dev *dev = vb2_get_drv_priv(vq); 839 int rc = 0; 840 841 dprintk(1, "au0828_start_analog_streaming called %d\n", 842 dev->streaming_users); 843 844 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 845 dev->frame_count = 0; 846 else 847 dev->vbi_frame_count = 0; 848 849 if (dev->streaming_users == 0) { 850 /* If we were doing ac97 instead of i2s, it would go here...*/ 851 au0828_i2s_init(dev); 852 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB, 853 AU0828_MAX_ISO_BUFS, dev->max_pkt_size, 854 au0828_isoc_copy); 855 if (rc < 0) { 856 pr_info("au0828_init_isoc failed\n"); 857 return rc; 858 } 859 860 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 861 v4l2_device_call_all(&dev->v4l2_dev, 0, video, 862 s_stream, 1); 863 dev->vid_timeout_running = 1; 864 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 865 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 866 dev->vbi_timeout_running = 1; 867 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 868 } 869 } 870 dev->streaming_users++; 871 return rc; 872 } 873 874 static void au0828_stop_streaming(struct vb2_queue *vq) 875 { 876 struct au0828_dev *dev = vb2_get_drv_priv(vq); 877 struct au0828_dmaqueue *vidq = &dev->vidq; 878 unsigned long flags = 0; 879 880 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users); 881 882 if (dev->streaming_users-- == 1) 883 au0828_uninit_isoc(dev); 884 885 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 886 dev->vid_timeout_running = 0; 887 del_timer_sync(&dev->vid_timeout); 888 889 spin_lock_irqsave(&dev->slock, flags); 890 if (dev->isoc_ctl.buf != NULL) { 891 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf, 892 VB2_BUF_STATE_ERROR); 893 dev->isoc_ctl.buf = NULL; 894 } 895 while (!list_empty(&vidq->active)) { 896 struct au0828_buffer *buf; 897 898 buf = list_entry(vidq->active.next, struct au0828_buffer, list); 899 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 900 list_del(&buf->list); 901 } 902 spin_unlock_irqrestore(&dev->slock, flags); 903 } 904 905 void au0828_stop_vbi_streaming(struct vb2_queue *vq) 906 { 907 struct au0828_dev *dev = vb2_get_drv_priv(vq); 908 struct au0828_dmaqueue *vbiq = &dev->vbiq; 909 unsigned long flags = 0; 910 911 dprintk(1, "au0828_stop_vbi_streaming called %d\n", 912 dev->streaming_users); 913 914 if (dev->streaming_users-- == 1) 915 au0828_uninit_isoc(dev); 916 917 spin_lock_irqsave(&dev->slock, flags); 918 if (dev->isoc_ctl.vbi_buf != NULL) { 919 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf, 920 VB2_BUF_STATE_ERROR); 921 dev->isoc_ctl.vbi_buf = NULL; 922 } 923 while (!list_empty(&vbiq->active)) { 924 struct au0828_buffer *buf; 925 926 buf = list_entry(vbiq->active.next, struct au0828_buffer, list); 927 list_del(&buf->list); 928 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 929 } 930 spin_unlock_irqrestore(&dev->slock, flags); 931 932 dev->vbi_timeout_running = 0; 933 del_timer_sync(&dev->vbi_timeout); 934 } 935 936 static struct vb2_ops au0828_video_qops = { 937 .queue_setup = queue_setup, 938 .buf_prepare = buffer_prepare, 939 .buf_queue = buffer_queue, 940 .start_streaming = au0828_start_analog_streaming, 941 .stop_streaming = au0828_stop_streaming, 942 .wait_prepare = vb2_ops_wait_prepare, 943 .wait_finish = vb2_ops_wait_finish, 944 }; 945 946 /* ------------------------------------------------------------------ 947 V4L2 interface 948 ------------------------------------------------------------------*/ 949 /* 950 * au0828_analog_unregister 951 * unregister v4l2 devices 952 */ 953 int au0828_analog_unregister(struct au0828_dev *dev) 954 { 955 dprintk(1, "au0828_analog_unregister called\n"); 956 957 /* No analog TV */ 958 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 959 return 0; 960 961 mutex_lock(&au0828_sysfs_lock); 962 video_unregister_device(&dev->vdev); 963 video_unregister_device(&dev->vbi_dev); 964 mutex_unlock(&au0828_sysfs_lock); 965 966 v4l2_device_disconnect(&dev->v4l2_dev); 967 v4l2_device_put(&dev->v4l2_dev); 968 969 return 1; 970 } 971 972 /* This function ensures that video frames continue to be delivered even if 973 the ITU-656 input isn't receiving any data (thereby preventing applications 974 such as tvtime from hanging) */ 975 static void au0828_vid_buffer_timeout(unsigned long data) 976 { 977 struct au0828_dev *dev = (struct au0828_dev *) data; 978 struct au0828_dmaqueue *dma_q = &dev->vidq; 979 struct au0828_buffer *buf; 980 unsigned char *vid_data; 981 unsigned long flags = 0; 982 983 spin_lock_irqsave(&dev->slock, flags); 984 985 buf = dev->isoc_ctl.buf; 986 if (buf != NULL) { 987 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 988 memset(vid_data, 0x00, buf->length); /* Blank green frame */ 989 buffer_filled(dev, dma_q, buf); 990 } 991 get_next_buf(dma_q, &buf); 992 993 if (dev->vid_timeout_running == 1) 994 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 995 996 spin_unlock_irqrestore(&dev->slock, flags); 997 } 998 999 static void au0828_vbi_buffer_timeout(unsigned long data) 1000 { 1001 struct au0828_dev *dev = (struct au0828_dev *) data; 1002 struct au0828_dmaqueue *dma_q = &dev->vbiq; 1003 struct au0828_buffer *buf; 1004 unsigned char *vbi_data; 1005 unsigned long flags = 0; 1006 1007 spin_lock_irqsave(&dev->slock, flags); 1008 1009 buf = dev->isoc_ctl.vbi_buf; 1010 if (buf != NULL) { 1011 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 1012 memset(vbi_data, 0x00, buf->length); 1013 buffer_filled(dev, dma_q, buf); 1014 } 1015 vbi_get_next_buf(dma_q, &buf); 1016 1017 if (dev->vbi_timeout_running == 1) 1018 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1019 spin_unlock_irqrestore(&dev->slock, flags); 1020 } 1021 1022 static int au0828_v4l2_open(struct file *filp) 1023 { 1024 struct au0828_dev *dev = video_drvdata(filp); 1025 int ret; 1026 1027 dprintk(1, 1028 "%s called std_set %d dev_state %ld stream users %d users %d\n", 1029 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1030 dev->streaming_users, dev->users); 1031 1032 if (mutex_lock_interruptible(&dev->lock)) 1033 return -ERESTARTSYS; 1034 1035 ret = v4l2_fh_open(filp); 1036 if (ret) { 1037 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n", 1038 __func__, ret); 1039 mutex_unlock(&dev->lock); 1040 return ret; 1041 } 1042 1043 if (dev->users == 0) { 1044 au0828_analog_stream_enable(dev); 1045 au0828_analog_stream_reset(dev); 1046 dev->stream_state = STREAM_OFF; 1047 set_bit(DEV_INITIALIZED, &dev->dev_state); 1048 } 1049 dev->users++; 1050 mutex_unlock(&dev->lock); 1051 return ret; 1052 } 1053 1054 static int au0828_v4l2_close(struct file *filp) 1055 { 1056 int ret; 1057 struct au0828_dev *dev = video_drvdata(filp); 1058 struct video_device *vdev = video_devdata(filp); 1059 1060 dprintk(1, 1061 "%s called std_set %d dev_state %ld stream users %d users %d\n", 1062 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1063 dev->streaming_users, dev->users); 1064 1065 mutex_lock(&dev->lock); 1066 if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) { 1067 /* Cancel timeout thread in case they didn't call streamoff */ 1068 dev->vid_timeout_running = 0; 1069 del_timer_sync(&dev->vid_timeout); 1070 } else if (vdev->vfl_type == VFL_TYPE_VBI && 1071 dev->vbi_timeout_running) { 1072 /* Cancel timeout thread in case they didn't call streamoff */ 1073 dev->vbi_timeout_running = 0; 1074 del_timer_sync(&dev->vbi_timeout); 1075 } 1076 1077 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) 1078 goto end; 1079 1080 if (dev->users == 1) { 1081 /* 1082 * Avoid putting tuner in sleep if DVB or ALSA are 1083 * streaming. 1084 * 1085 * On most USB devices like au0828 the tuner can 1086 * be safely put in sleep stare here if ALSA isn't 1087 * streaming. Exceptions are some very old USB tuner 1088 * models such as em28xx-based WinTV USB2 which have 1089 * a separate audio output jack. The devices that have 1090 * a separate audio output jack have analog tuners, 1091 * like Philips FM1236. Those devices are always on, 1092 * so the s_power callback are silently ignored. 1093 * So, the current logic here does the following: 1094 * Disable (put tuner to sleep) when 1095 * - ALSA and DVB aren't not streaming; 1096 * - the last V4L2 file handler is closed. 1097 * 1098 * FIXME: 1099 * 1100 * Additionally, this logic could be improved to 1101 * disable the media source if the above conditions 1102 * are met and if the device: 1103 * - doesn't have a separate audio out plug (or 1104 * - doesn't use a silicon tuner like xc2028/3028/4000/5000). 1105 * 1106 * Once this additional logic is in place, a callback 1107 * is needed to enable the media source and power on 1108 * the tuner, for radio to work. 1109 */ 1110 ret = v4l_enable_media_source(vdev); 1111 if (ret == 0) 1112 v4l2_device_call_all(&dev->v4l2_dev, 0, core, 1113 s_power, 0); 1114 dev->std_set_in_tuner_core = 0; 1115 1116 /* When close the device, set the usb intf0 into alt0 to free 1117 USB bandwidth */ 1118 ret = usb_set_interface(dev->usbdev, 0, 0); 1119 if (ret < 0) 1120 pr_info("Au0828 can't set alternate to 0!\n"); 1121 } 1122 end: 1123 _vb2_fop_release(filp, NULL); 1124 dev->users--; 1125 mutex_unlock(&dev->lock); 1126 return 0; 1127 } 1128 1129 /* Must be called with dev->lock held */ 1130 static void au0828_init_tuner(struct au0828_dev *dev) 1131 { 1132 struct v4l2_frequency f = { 1133 .frequency = dev->ctrl_freq, 1134 .type = V4L2_TUNER_ANALOG_TV, 1135 }; 1136 1137 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1138 dev->std_set_in_tuner_core, dev->dev_state); 1139 1140 if (dev->std_set_in_tuner_core) 1141 return; 1142 dev->std_set_in_tuner_core = 1; 1143 i2c_gate_ctrl(dev, 1); 1144 /* If we've never sent the standard in tuner core, do so now. 1145 We don't do this at device probe because we don't want to 1146 incur the cost of a firmware load */ 1147 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std); 1148 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 1149 i2c_gate_ctrl(dev, 0); 1150 } 1151 1152 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd, 1153 struct v4l2_format *format) 1154 { 1155 int ret; 1156 int width = format->fmt.pix.width; 1157 int height = format->fmt.pix.height; 1158 1159 /* If they are demanding a format other than the one we support, 1160 bail out (tvtime asks for UYVY and then retries with YUYV) */ 1161 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY) 1162 return -EINVAL; 1163 1164 /* format->fmt.pix.width only support 720 and height 480 */ 1165 if (width != 720) 1166 width = 720; 1167 if (height != 480) 1168 height = 480; 1169 1170 format->fmt.pix.width = width; 1171 format->fmt.pix.height = height; 1172 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1173 format->fmt.pix.bytesperline = width * 2; 1174 format->fmt.pix.sizeimage = width * height * 2; 1175 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1176 format->fmt.pix.field = V4L2_FIELD_INTERLACED; 1177 format->fmt.pix.priv = 0; 1178 1179 if (cmd == VIDIOC_TRY_FMT) 1180 return 0; 1181 1182 /* maybe set new image format, driver current only support 720*480 */ 1183 dev->width = width; 1184 dev->height = height; 1185 dev->frame_size = width * height * 2; 1186 dev->field_size = width * height; 1187 dev->bytesperline = width * 2; 1188 1189 if (dev->stream_state == STREAM_ON) { 1190 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n"); 1191 ret = au0828_stream_interrupt(dev); 1192 if (ret != 0) { 1193 dprintk(1, "error interrupting video stream!\n"); 1194 return ret; 1195 } 1196 } 1197 1198 au0828_analog_stream_enable(dev); 1199 1200 return 0; 1201 } 1202 1203 static int vidioc_querycap(struct file *file, void *priv, 1204 struct v4l2_capability *cap) 1205 { 1206 struct video_device *vdev = video_devdata(file); 1207 struct au0828_dev *dev = video_drvdata(file); 1208 1209 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1210 dev->std_set_in_tuner_core, dev->dev_state); 1211 1212 strlcpy(cap->driver, "au0828", sizeof(cap->driver)); 1213 strlcpy(cap->card, dev->board.name, sizeof(cap->card)); 1214 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info)); 1215 1216 /* set the device capabilities */ 1217 cap->device_caps = V4L2_CAP_AUDIO | 1218 V4L2_CAP_READWRITE | 1219 V4L2_CAP_STREAMING | 1220 V4L2_CAP_TUNER; 1221 if (vdev->vfl_type == VFL_TYPE_GRABBER) 1222 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE; 1223 else 1224 cap->device_caps |= V4L2_CAP_VBI_CAPTURE; 1225 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS | 1226 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE; 1227 return 0; 1228 } 1229 1230 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1231 struct v4l2_fmtdesc *f) 1232 { 1233 if (f->index) 1234 return -EINVAL; 1235 1236 dprintk(1, "%s called\n", __func__); 1237 1238 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1239 strcpy(f->description, "Packed YUV2"); 1240 1241 f->flags = 0; 1242 f->pixelformat = V4L2_PIX_FMT_UYVY; 1243 1244 return 0; 1245 } 1246 1247 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 1248 struct v4l2_format *f) 1249 { 1250 struct au0828_dev *dev = video_drvdata(file); 1251 1252 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1253 dev->std_set_in_tuner_core, dev->dev_state); 1254 1255 f->fmt.pix.width = dev->width; 1256 f->fmt.pix.height = dev->height; 1257 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1258 f->fmt.pix.bytesperline = dev->bytesperline; 1259 f->fmt.pix.sizeimage = dev->frame_size; 1260 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */ 1261 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 1262 f->fmt.pix.priv = 0; 1263 return 0; 1264 } 1265 1266 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 1267 struct v4l2_format *f) 1268 { 1269 struct au0828_dev *dev = video_drvdata(file); 1270 1271 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1272 dev->std_set_in_tuner_core, dev->dev_state); 1273 1274 return au0828_set_format(dev, VIDIOC_TRY_FMT, f); 1275 } 1276 1277 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1278 struct v4l2_format *f) 1279 { 1280 struct au0828_dev *dev = video_drvdata(file); 1281 int rc; 1282 1283 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1284 dev->std_set_in_tuner_core, dev->dev_state); 1285 1286 rc = check_dev(dev); 1287 if (rc < 0) 1288 return rc; 1289 1290 if (vb2_is_busy(&dev->vb_vidq)) { 1291 pr_info("%s queue busy\n", __func__); 1292 rc = -EBUSY; 1293 goto out; 1294 } 1295 1296 rc = au0828_set_format(dev, VIDIOC_S_FMT, f); 1297 out: 1298 return rc; 1299 } 1300 1301 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) 1302 { 1303 struct au0828_dev *dev = video_drvdata(file); 1304 1305 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1306 dev->std_set_in_tuner_core, dev->dev_state); 1307 1308 if (norm == dev->std) 1309 return 0; 1310 1311 if (dev->streaming_users > 0) 1312 return -EBUSY; 1313 1314 dev->std = norm; 1315 1316 au0828_init_tuner(dev); 1317 1318 i2c_gate_ctrl(dev, 1); 1319 1320 /* 1321 * FIXME: when we support something other than 60Hz standards, 1322 * we are going to have to make the au0828 bridge adjust the size 1323 * of its capture buffer, which is currently hardcoded at 720x480 1324 */ 1325 1326 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm); 1327 1328 i2c_gate_ctrl(dev, 0); 1329 1330 return 0; 1331 } 1332 1333 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) 1334 { 1335 struct au0828_dev *dev = video_drvdata(file); 1336 1337 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1338 dev->std_set_in_tuner_core, dev->dev_state); 1339 1340 *norm = dev->std; 1341 return 0; 1342 } 1343 1344 static int vidioc_enum_input(struct file *file, void *priv, 1345 struct v4l2_input *input) 1346 { 1347 struct au0828_dev *dev = video_drvdata(file); 1348 unsigned int tmp; 1349 1350 static const char *inames[] = { 1351 [AU0828_VMUX_UNDEFINED] = "Undefined", 1352 [AU0828_VMUX_COMPOSITE] = "Composite", 1353 [AU0828_VMUX_SVIDEO] = "S-Video", 1354 [AU0828_VMUX_CABLE] = "Cable TV", 1355 [AU0828_VMUX_TELEVISION] = "Television", 1356 [AU0828_VMUX_DVB] = "DVB", 1357 }; 1358 1359 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1360 dev->std_set_in_tuner_core, dev->dev_state); 1361 1362 tmp = input->index; 1363 1364 if (tmp >= AU0828_MAX_INPUT) 1365 return -EINVAL; 1366 if (AUVI_INPUT(tmp).type == 0) 1367 return -EINVAL; 1368 1369 input->index = tmp; 1370 strcpy(input->name, inames[AUVI_INPUT(tmp).type]); 1371 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) || 1372 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) { 1373 input->type |= V4L2_INPUT_TYPE_TUNER; 1374 input->audioset = 1; 1375 } else { 1376 input->type |= V4L2_INPUT_TYPE_CAMERA; 1377 input->audioset = 2; 1378 } 1379 1380 input->std = dev->vdev.tvnorms; 1381 1382 return 0; 1383 } 1384 1385 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1386 { 1387 struct au0828_dev *dev = video_drvdata(file); 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 *i = dev->ctrl_input; 1393 return 0; 1394 } 1395 1396 static void au0828_s_input(struct au0828_dev *dev, int index) 1397 { 1398 int i; 1399 1400 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1401 dev->std_set_in_tuner_core, dev->dev_state); 1402 1403 switch (AUVI_INPUT(index).type) { 1404 case AU0828_VMUX_SVIDEO: 1405 dev->input_type = AU0828_VMUX_SVIDEO; 1406 dev->ctrl_ainput = 1; 1407 break; 1408 case AU0828_VMUX_COMPOSITE: 1409 dev->input_type = AU0828_VMUX_COMPOSITE; 1410 dev->ctrl_ainput = 1; 1411 break; 1412 case AU0828_VMUX_TELEVISION: 1413 dev->input_type = AU0828_VMUX_TELEVISION; 1414 dev->ctrl_ainput = 0; 1415 break; 1416 default: 1417 dprintk(1, "unknown input type set [%d]\n", 1418 AUVI_INPUT(index).type); 1419 return; 1420 } 1421 1422 dev->ctrl_input = index; 1423 1424 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 1425 AUVI_INPUT(index).vmux, 0, 0); 1426 1427 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1428 int enable = 0; 1429 if (AUVI_INPUT(i).audio_setup == NULL) 1430 continue; 1431 1432 if (i == index) 1433 enable = 1; 1434 else 1435 enable = 0; 1436 if (enable) { 1437 (AUVI_INPUT(i).audio_setup)(dev, enable); 1438 } else { 1439 /* Make sure we leave it turned on if some 1440 other input is routed to this callback */ 1441 if ((AUVI_INPUT(i).audio_setup) != 1442 ((AUVI_INPUT(index).audio_setup))) { 1443 (AUVI_INPUT(i).audio_setup)(dev, enable); 1444 } 1445 } 1446 } 1447 1448 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 1449 AUVI_INPUT(index).amux, 0, 0); 1450 } 1451 1452 static int vidioc_s_input(struct file *file, void *priv, unsigned int index) 1453 { 1454 struct au0828_dev *dev = video_drvdata(file); 1455 struct video_device *vfd = video_devdata(file); 1456 1457 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__, 1458 index); 1459 if (index >= AU0828_MAX_INPUT) 1460 return -EINVAL; 1461 if (AUVI_INPUT(index).type == 0) 1462 return -EINVAL; 1463 1464 if (dev->ctrl_input == index) 1465 return 0; 1466 1467 au0828_s_input(dev, index); 1468 1469 /* 1470 * Input has been changed. Disable the media source 1471 * associated with the old input and enable source 1472 * for the newly set input 1473 */ 1474 v4l_disable_media_source(vfd); 1475 return v4l_enable_media_source(vfd); 1476 } 1477 1478 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a) 1479 { 1480 if (a->index > 1) 1481 return -EINVAL; 1482 1483 dprintk(1, "%s called\n", __func__); 1484 1485 if (a->index == 0) 1486 strcpy(a->name, "Television"); 1487 else 1488 strcpy(a->name, "Line in"); 1489 1490 a->capability = V4L2_AUDCAP_STEREO; 1491 return 0; 1492 } 1493 1494 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 1495 { 1496 struct au0828_dev *dev = video_drvdata(file); 1497 1498 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1499 dev->std_set_in_tuner_core, dev->dev_state); 1500 1501 a->index = dev->ctrl_ainput; 1502 if (a->index == 0) 1503 strcpy(a->name, "Television"); 1504 else 1505 strcpy(a->name, "Line in"); 1506 1507 a->capability = V4L2_AUDCAP_STEREO; 1508 return 0; 1509 } 1510 1511 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 1512 { 1513 struct au0828_dev *dev = video_drvdata(file); 1514 1515 if (a->index != dev->ctrl_ainput) 1516 return -EINVAL; 1517 1518 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1519 dev->std_set_in_tuner_core, dev->dev_state); 1520 return 0; 1521 } 1522 1523 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1524 { 1525 struct au0828_dev *dev = video_drvdata(file); 1526 struct video_device *vfd = video_devdata(file); 1527 int ret; 1528 1529 if (t->index != 0) 1530 return -EINVAL; 1531 1532 ret = v4l_enable_media_source(vfd); 1533 if (ret) 1534 return ret; 1535 1536 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1537 dev->std_set_in_tuner_core, dev->dev_state); 1538 1539 strcpy(t->name, "Auvitek tuner"); 1540 1541 au0828_init_tuner(dev); 1542 i2c_gate_ctrl(dev, 1); 1543 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 1544 i2c_gate_ctrl(dev, 0); 1545 return 0; 1546 } 1547 1548 static int vidioc_s_tuner(struct file *file, void *priv, 1549 const struct v4l2_tuner *t) 1550 { 1551 struct au0828_dev *dev = video_drvdata(file); 1552 1553 if (t->index != 0) 1554 return -EINVAL; 1555 1556 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1557 dev->std_set_in_tuner_core, dev->dev_state); 1558 1559 au0828_init_tuner(dev); 1560 i2c_gate_ctrl(dev, 1); 1561 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 1562 i2c_gate_ctrl(dev, 0); 1563 1564 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal, 1565 t->afc); 1566 1567 return 0; 1568 1569 } 1570 1571 static int vidioc_g_frequency(struct file *file, void *priv, 1572 struct v4l2_frequency *freq) 1573 { 1574 struct au0828_dev *dev = video_drvdata(file); 1575 1576 if (freq->tuner != 0) 1577 return -EINVAL; 1578 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1579 dev->std_set_in_tuner_core, dev->dev_state); 1580 freq->frequency = dev->ctrl_freq; 1581 return 0; 1582 } 1583 1584 static int vidioc_s_frequency(struct file *file, void *priv, 1585 const struct v4l2_frequency *freq) 1586 { 1587 struct au0828_dev *dev = video_drvdata(file); 1588 struct v4l2_frequency new_freq = *freq; 1589 1590 if (freq->tuner != 0) 1591 return -EINVAL; 1592 1593 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1594 dev->std_set_in_tuner_core, dev->dev_state); 1595 1596 au0828_init_tuner(dev); 1597 i2c_gate_ctrl(dev, 1); 1598 1599 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq); 1600 /* Get the actual set (and possibly clamped) frequency */ 1601 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq); 1602 dev->ctrl_freq = new_freq.frequency; 1603 1604 i2c_gate_ctrl(dev, 0); 1605 1606 au0828_analog_stream_reset(dev); 1607 1608 return 0; 1609 } 1610 1611 1612 /* RAW VBI ioctls */ 1613 1614 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 1615 struct v4l2_format *format) 1616 { 1617 struct au0828_dev *dev = video_drvdata(file); 1618 1619 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1620 dev->std_set_in_tuner_core, dev->dev_state); 1621 1622 format->fmt.vbi.samples_per_line = dev->vbi_width; 1623 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1624 format->fmt.vbi.offset = 0; 1625 format->fmt.vbi.flags = 0; 1626 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 1627 1628 format->fmt.vbi.count[0] = dev->vbi_height; 1629 format->fmt.vbi.count[1] = dev->vbi_height; 1630 format->fmt.vbi.start[0] = 21; 1631 format->fmt.vbi.start[1] = 284; 1632 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved)); 1633 1634 return 0; 1635 } 1636 1637 static int vidioc_cropcap(struct file *file, void *priv, 1638 struct v4l2_cropcap *cc) 1639 { 1640 struct au0828_dev *dev = video_drvdata(file); 1641 1642 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1643 return -EINVAL; 1644 1645 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1646 dev->std_set_in_tuner_core, dev->dev_state); 1647 1648 cc->bounds.left = 0; 1649 cc->bounds.top = 0; 1650 cc->bounds.width = dev->width; 1651 cc->bounds.height = dev->height; 1652 1653 cc->defrect = cc->bounds; 1654 1655 cc->pixelaspect.numerator = 54; 1656 cc->pixelaspect.denominator = 59; 1657 1658 return 0; 1659 } 1660 1661 #ifdef CONFIG_VIDEO_ADV_DEBUG 1662 static int vidioc_g_register(struct file *file, void *priv, 1663 struct v4l2_dbg_register *reg) 1664 { 1665 struct au0828_dev *dev = video_drvdata(file); 1666 1667 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1668 dev->std_set_in_tuner_core, dev->dev_state); 1669 1670 reg->val = au0828_read(dev, reg->reg); 1671 reg->size = 1; 1672 return 0; 1673 } 1674 1675 static int vidioc_s_register(struct file *file, void *priv, 1676 const struct v4l2_dbg_register *reg) 1677 { 1678 struct au0828_dev *dev = video_drvdata(file); 1679 1680 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1681 dev->std_set_in_tuner_core, dev->dev_state); 1682 1683 return au0828_writereg(dev, reg->reg, reg->val); 1684 } 1685 #endif 1686 1687 static int vidioc_log_status(struct file *file, void *fh) 1688 { 1689 struct video_device *vdev = video_devdata(file); 1690 1691 dprintk(1, "%s called\n", __func__); 1692 1693 v4l2_ctrl_log_status(file, fh); 1694 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status); 1695 return 0; 1696 } 1697 1698 void au0828_v4l2_suspend(struct au0828_dev *dev) 1699 { 1700 struct urb *urb; 1701 int i; 1702 1703 pr_info("stopping V4L2\n"); 1704 1705 if (dev->stream_state == STREAM_ON) { 1706 pr_info("stopping V4L2 active URBs\n"); 1707 au0828_analog_stream_disable(dev); 1708 /* stop urbs */ 1709 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1710 urb = dev->isoc_ctl.urb[i]; 1711 if (urb) { 1712 if (!irqs_disabled()) 1713 usb_kill_urb(urb); 1714 else 1715 usb_unlink_urb(urb); 1716 } 1717 } 1718 } 1719 1720 if (dev->vid_timeout_running) 1721 del_timer_sync(&dev->vid_timeout); 1722 if (dev->vbi_timeout_running) 1723 del_timer_sync(&dev->vbi_timeout); 1724 } 1725 1726 void au0828_v4l2_resume(struct au0828_dev *dev) 1727 { 1728 int i, rc; 1729 1730 pr_info("restarting V4L2\n"); 1731 1732 if (dev->stream_state == STREAM_ON) { 1733 au0828_stream_interrupt(dev); 1734 au0828_init_tuner(dev); 1735 } 1736 1737 if (dev->vid_timeout_running) 1738 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 1739 if (dev->vbi_timeout_running) 1740 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1741 1742 /* If we were doing ac97 instead of i2s, it would go here...*/ 1743 au0828_i2s_init(dev); 1744 1745 au0828_analog_stream_enable(dev); 1746 1747 if (!(dev->stream_state == STREAM_ON)) { 1748 au0828_analog_stream_reset(dev); 1749 /* submit urbs */ 1750 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1751 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 1752 if (rc) { 1753 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 1754 i, rc); 1755 au0828_uninit_isoc(dev); 1756 } 1757 } 1758 } 1759 } 1760 1761 static struct v4l2_file_operations au0828_v4l_fops = { 1762 .owner = THIS_MODULE, 1763 .open = au0828_v4l2_open, 1764 .release = au0828_v4l2_close, 1765 .read = vb2_fop_read, 1766 .poll = vb2_fop_poll, 1767 .mmap = vb2_fop_mmap, 1768 .unlocked_ioctl = video_ioctl2, 1769 }; 1770 1771 static const struct v4l2_ioctl_ops video_ioctl_ops = { 1772 .vidioc_querycap = vidioc_querycap, 1773 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1774 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1775 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1776 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1777 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1778 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1779 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1780 .vidioc_enumaudio = vidioc_enumaudio, 1781 .vidioc_g_audio = vidioc_g_audio, 1782 .vidioc_s_audio = vidioc_s_audio, 1783 .vidioc_cropcap = vidioc_cropcap, 1784 1785 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1786 .vidioc_create_bufs = vb2_ioctl_create_bufs, 1787 .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 1788 .vidioc_querybuf = vb2_ioctl_querybuf, 1789 .vidioc_qbuf = vb2_ioctl_qbuf, 1790 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1791 .vidioc_expbuf = vb2_ioctl_expbuf, 1792 1793 .vidioc_s_std = vidioc_s_std, 1794 .vidioc_g_std = vidioc_g_std, 1795 .vidioc_enum_input = vidioc_enum_input, 1796 .vidioc_g_input = vidioc_g_input, 1797 .vidioc_s_input = vidioc_s_input, 1798 1799 .vidioc_streamon = vb2_ioctl_streamon, 1800 .vidioc_streamoff = vb2_ioctl_streamoff, 1801 1802 .vidioc_g_tuner = vidioc_g_tuner, 1803 .vidioc_s_tuner = vidioc_s_tuner, 1804 .vidioc_g_frequency = vidioc_g_frequency, 1805 .vidioc_s_frequency = vidioc_s_frequency, 1806 #ifdef CONFIG_VIDEO_ADV_DEBUG 1807 .vidioc_g_register = vidioc_g_register, 1808 .vidioc_s_register = vidioc_s_register, 1809 #endif 1810 .vidioc_log_status = vidioc_log_status, 1811 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1812 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1813 }; 1814 1815 static const struct video_device au0828_video_template = { 1816 .fops = &au0828_v4l_fops, 1817 .release = video_device_release_empty, 1818 .ioctl_ops = &video_ioctl_ops, 1819 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M, 1820 }; 1821 1822 static int au0828_vb2_setup(struct au0828_dev *dev) 1823 { 1824 int rc; 1825 struct vb2_queue *q; 1826 1827 /* Setup Videobuf2 for Video capture */ 1828 q = &dev->vb_vidq; 1829 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1830 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1831 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1832 q->drv_priv = dev; 1833 q->buf_struct_size = sizeof(struct au0828_buffer); 1834 q->ops = &au0828_video_qops; 1835 q->mem_ops = &vb2_vmalloc_memops; 1836 1837 rc = vb2_queue_init(q); 1838 if (rc < 0) 1839 return rc; 1840 1841 /* Setup Videobuf2 for VBI capture */ 1842 q = &dev->vb_vbiq; 1843 q->type = V4L2_BUF_TYPE_VBI_CAPTURE; 1844 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1845 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1846 q->drv_priv = dev; 1847 q->buf_struct_size = sizeof(struct au0828_buffer); 1848 q->ops = &au0828_vbi_qops; 1849 q->mem_ops = &vb2_vmalloc_memops; 1850 1851 rc = vb2_queue_init(q); 1852 if (rc < 0) 1853 return rc; 1854 1855 return 0; 1856 } 1857 1858 static void au0828_analog_create_entities(struct au0828_dev *dev) 1859 { 1860 #if defined(CONFIG_MEDIA_CONTROLLER) 1861 static const char * const inames[] = { 1862 [AU0828_VMUX_COMPOSITE] = "Composite", 1863 [AU0828_VMUX_SVIDEO] = "S-Video", 1864 [AU0828_VMUX_CABLE] = "Cable TV", 1865 [AU0828_VMUX_TELEVISION] = "Television", 1866 [AU0828_VMUX_DVB] = "DVB", 1867 }; 1868 int ret, i; 1869 1870 /* Initialize Video and VBI pads */ 1871 dev->video_pad.flags = MEDIA_PAD_FL_SINK; 1872 ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad); 1873 if (ret < 0) 1874 pr_err("failed to initialize video media entity!\n"); 1875 1876 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK; 1877 ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad); 1878 if (ret < 0) 1879 pr_err("failed to initialize vbi media entity!\n"); 1880 1881 /* Create entities for each input connector */ 1882 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1883 struct media_entity *ent = &dev->input_ent[i]; 1884 1885 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) 1886 break; 1887 1888 ent->name = inames[AUVI_INPUT(i).type]; 1889 ent->flags = MEDIA_ENT_FL_CONNECTOR; 1890 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE; 1891 1892 switch (AUVI_INPUT(i).type) { 1893 case AU0828_VMUX_COMPOSITE: 1894 ent->function = MEDIA_ENT_F_CONN_COMPOSITE; 1895 break; 1896 case AU0828_VMUX_SVIDEO: 1897 ent->function = MEDIA_ENT_F_CONN_SVIDEO; 1898 break; 1899 case AU0828_VMUX_CABLE: 1900 case AU0828_VMUX_TELEVISION: 1901 case AU0828_VMUX_DVB: 1902 default: /* Just to shut up a warning */ 1903 ent->function = MEDIA_ENT_F_CONN_RF; 1904 break; 1905 } 1906 1907 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]); 1908 if (ret < 0) 1909 pr_err("failed to initialize input pad[%d]!\n", i); 1910 1911 ret = media_device_register_entity(dev->media_dev, ent); 1912 if (ret < 0) 1913 pr_err("failed to register input entity %d!\n", i); 1914 } 1915 #endif 1916 } 1917 1918 /**************************************************************************/ 1919 1920 int au0828_analog_register(struct au0828_dev *dev, 1921 struct usb_interface *interface) 1922 { 1923 int retval = -ENOMEM; 1924 struct usb_host_interface *iface_desc; 1925 struct usb_endpoint_descriptor *endpoint; 1926 int i, ret; 1927 1928 dprintk(1, "au0828_analog_register called for intf#%d!\n", 1929 interface->cur_altsetting->desc.bInterfaceNumber); 1930 1931 /* No analog TV */ 1932 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 1933 return 0; 1934 1935 /* set au0828 usb interface0 to as5 */ 1936 retval = usb_set_interface(dev->usbdev, 1937 interface->cur_altsetting->desc.bInterfaceNumber, 5); 1938 if (retval != 0) { 1939 pr_info("Failure setting usb interface0 to as5\n"); 1940 return retval; 1941 } 1942 1943 /* Figure out which endpoint has the isoc interface */ 1944 iface_desc = interface->cur_altsetting; 1945 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { 1946 endpoint = &iface_desc->endpoint[i].desc; 1947 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1948 == USB_DIR_IN) && 1949 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1950 == USB_ENDPOINT_XFER_ISOC)) { 1951 1952 /* we find our isoc in endpoint */ 1953 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize); 1954 dev->max_pkt_size = (tmp & 0x07ff) * 1955 (((tmp & 0x1800) >> 11) + 1); 1956 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress; 1957 dprintk(1, 1958 "Found isoc endpoint 0x%02x, max size = %d\n", 1959 dev->isoc_in_endpointaddr, dev->max_pkt_size); 1960 } 1961 } 1962 if (!(dev->isoc_in_endpointaddr)) { 1963 pr_info("Could not locate isoc endpoint\n"); 1964 return -ENODEV; 1965 } 1966 1967 init_waitqueue_head(&dev->open); 1968 spin_lock_init(&dev->slock); 1969 1970 /* init video dma queues */ 1971 INIT_LIST_HEAD(&dev->vidq.active); 1972 INIT_LIST_HEAD(&dev->vbiq.active); 1973 1974 setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout, 1975 (unsigned long)dev); 1976 setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 1977 (unsigned long)dev); 1978 1979 dev->width = NTSC_STD_W; 1980 dev->height = NTSC_STD_H; 1981 dev->field_size = dev->width * dev->height; 1982 dev->frame_size = dev->field_size << 1; 1983 dev->bytesperline = dev->width << 1; 1984 dev->vbi_width = 720; 1985 dev->vbi_height = 1; 1986 dev->ctrl_ainput = 0; 1987 dev->ctrl_freq = 960; 1988 dev->std = V4L2_STD_NTSC_M; 1989 /* Default input is TV Tuner */ 1990 au0828_s_input(dev, 0); 1991 1992 mutex_init(&dev->vb_queue_lock); 1993 mutex_init(&dev->vb_vbi_queue_lock); 1994 1995 /* Fill the video capture device struct */ 1996 dev->vdev = au0828_video_template; 1997 dev->vdev.v4l2_dev = &dev->v4l2_dev; 1998 dev->vdev.lock = &dev->lock; 1999 dev->vdev.queue = &dev->vb_vidq; 2000 dev->vdev.queue->lock = &dev->vb_queue_lock; 2001 strcpy(dev->vdev.name, "au0828a video"); 2002 2003 /* Setup the VBI device */ 2004 dev->vbi_dev = au0828_video_template; 2005 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev; 2006 dev->vbi_dev.lock = &dev->lock; 2007 dev->vbi_dev.queue = &dev->vb_vbiq; 2008 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock; 2009 strcpy(dev->vbi_dev.name, "au0828a vbi"); 2010 2011 /* Init entities at the Media Controller */ 2012 au0828_analog_create_entities(dev); 2013 2014 /* initialize videobuf2 stuff */ 2015 retval = au0828_vb2_setup(dev); 2016 if (retval != 0) { 2017 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n", 2018 retval); 2019 return -ENODEV; 2020 } 2021 2022 /* Register the v4l2 device */ 2023 video_set_drvdata(&dev->vdev, dev); 2024 retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1); 2025 if (retval != 0) { 2026 dprintk(1, "unable to register video device (error = %d).\n", 2027 retval); 2028 ret = -ENODEV; 2029 goto err_reg_vdev; 2030 } 2031 2032 /* Register the vbi device */ 2033 video_set_drvdata(&dev->vbi_dev, dev); 2034 retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1); 2035 if (retval != 0) { 2036 dprintk(1, "unable to register vbi device (error = %d).\n", 2037 retval); 2038 ret = -ENODEV; 2039 goto err_reg_vbi_dev; 2040 } 2041 2042 #ifdef CONFIG_MEDIA_CONTROLLER 2043 retval = v4l2_mc_create_media_graph(dev->media_dev); 2044 if (retval) { 2045 pr_err("%s() au0282_dev_register failed to create graph\n", 2046 __func__); 2047 ret = -ENODEV; 2048 goto err_reg_vbi_dev; 2049 } 2050 #endif 2051 2052 dprintk(1, "%s completed!\n", __func__); 2053 2054 return 0; 2055 2056 err_reg_vbi_dev: 2057 video_unregister_device(&dev->vdev); 2058 err_reg_vdev: 2059 vb2_queue_release(&dev->vb_vidq); 2060 vb2_queue_release(&dev->vb_vbiq); 2061 return ret; 2062 } 2063 2064