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 return retval; 683 } 684 685 dev->v4l2_dev.release = au0828_usb_v4l2_release; 686 687 /* This control handler will inherit the controls from au8522 */ 688 retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4); 689 if (retval) { 690 pr_err("%s() v4l2_ctrl_handler_init failed\n", 691 __func__); 692 return retval; 693 } 694 dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl; 695 696 return 0; 697 } 698 699 static int queue_setup(struct vb2_queue *vq, 700 unsigned int *nbuffers, unsigned int *nplanes, 701 unsigned int sizes[], void *alloc_ctxs[]) 702 { 703 struct au0828_dev *dev = vb2_get_drv_priv(vq); 704 unsigned long size = dev->height * dev->bytesperline; 705 706 if (*nplanes) 707 return sizes[0] < size ? -EINVAL : 0; 708 *nplanes = 1; 709 sizes[0] = size; 710 return 0; 711 } 712 713 static int 714 buffer_prepare(struct vb2_buffer *vb) 715 { 716 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 717 struct au0828_buffer *buf = container_of(vbuf, 718 struct au0828_buffer, vb); 719 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 720 721 buf->length = dev->height * dev->bytesperline; 722 723 if (vb2_plane_size(vb, 0) < buf->length) { 724 pr_err("%s data will not fit into plane (%lu < %lu)\n", 725 __func__, vb2_plane_size(vb, 0), buf->length); 726 return -EINVAL; 727 } 728 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length); 729 return 0; 730 } 731 732 static void 733 buffer_queue(struct vb2_buffer *vb) 734 { 735 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 736 struct au0828_buffer *buf = container_of(vbuf, 737 struct au0828_buffer, 738 vb); 739 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 740 struct au0828_dmaqueue *vidq = &dev->vidq; 741 unsigned long flags = 0; 742 743 buf->mem = vb2_plane_vaddr(vb, 0); 744 buf->length = vb2_plane_size(vb, 0); 745 746 spin_lock_irqsave(&dev->slock, flags); 747 list_add_tail(&buf->list, &vidq->active); 748 spin_unlock_irqrestore(&dev->slock, flags); 749 } 750 751 static int au0828_i2s_init(struct au0828_dev *dev) 752 { 753 /* Enable i2s mode */ 754 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01); 755 return 0; 756 } 757 758 /* 759 * Auvitek au0828 analog stream enable 760 */ 761 static int au0828_analog_stream_enable(struct au0828_dev *d) 762 { 763 struct usb_interface *iface; 764 int ret, h, w; 765 766 dprintk(1, "au0828_analog_stream_enable called\n"); 767 768 iface = usb_ifnum_to_if(d->usbdev, 0); 769 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) { 770 dprintk(1, "Changing intf#0 to alt 5\n"); 771 /* set au0828 interface0 to AS5 here again */ 772 ret = usb_set_interface(d->usbdev, 0, 5); 773 if (ret < 0) { 774 pr_info("Au0828 can't set alt setting to 5!\n"); 775 return -EBUSY; 776 } 777 } 778 779 h = d->height / 2 + 2; 780 w = d->width * 2; 781 782 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00); 783 au0828_writereg(d, 0x106, 0x00); 784 /* set x position */ 785 au0828_writereg(d, 0x110, 0x00); 786 au0828_writereg(d, 0x111, 0x00); 787 au0828_writereg(d, 0x114, w & 0xff); 788 au0828_writereg(d, 0x115, w >> 8); 789 /* set y position */ 790 au0828_writereg(d, 0x112, 0x00); 791 au0828_writereg(d, 0x113, 0x00); 792 au0828_writereg(d, 0x116, h & 0xff); 793 au0828_writereg(d, 0x117, h >> 8); 794 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3); 795 796 return 0; 797 } 798 799 static int au0828_analog_stream_disable(struct au0828_dev *d) 800 { 801 dprintk(1, "au0828_analog_stream_disable called\n"); 802 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0); 803 return 0; 804 } 805 806 static void au0828_analog_stream_reset(struct au0828_dev *dev) 807 { 808 dprintk(1, "au0828_analog_stream_reset called\n"); 809 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0); 810 mdelay(30); 811 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3); 812 } 813 814 /* 815 * Some operations needs to stop current streaming 816 */ 817 static int au0828_stream_interrupt(struct au0828_dev *dev) 818 { 819 int ret = 0; 820 821 dev->stream_state = STREAM_INTERRUPT; 822 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) 823 return -ENODEV; 824 else if (ret) { 825 set_bit(DEV_MISCONFIGURED, &dev->dev_state); 826 dprintk(1, "%s device is misconfigured!\n", __func__); 827 return ret; 828 } 829 return 0; 830 } 831 832 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count) 833 { 834 struct au0828_dev *dev = vb2_get_drv_priv(vq); 835 int rc = 0; 836 837 dprintk(1, "au0828_start_analog_streaming called %d\n", 838 dev->streaming_users); 839 840 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 841 dev->frame_count = 0; 842 else 843 dev->vbi_frame_count = 0; 844 845 if (dev->streaming_users == 0) { 846 /* If we were doing ac97 instead of i2s, it would go here...*/ 847 au0828_i2s_init(dev); 848 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB, 849 AU0828_MAX_ISO_BUFS, dev->max_pkt_size, 850 au0828_isoc_copy); 851 if (rc < 0) { 852 pr_info("au0828_init_isoc failed\n"); 853 return rc; 854 } 855 856 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 857 v4l2_device_call_all(&dev->v4l2_dev, 0, video, 858 s_stream, 1); 859 dev->vid_timeout_running = 1; 860 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 861 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 862 dev->vbi_timeout_running = 1; 863 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 864 } 865 } 866 dev->streaming_users++; 867 return rc; 868 } 869 870 static void au0828_stop_streaming(struct vb2_queue *vq) 871 { 872 struct au0828_dev *dev = vb2_get_drv_priv(vq); 873 struct au0828_dmaqueue *vidq = &dev->vidq; 874 unsigned long flags = 0; 875 876 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users); 877 878 if (dev->streaming_users-- == 1) 879 au0828_uninit_isoc(dev); 880 881 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 882 dev->vid_timeout_running = 0; 883 del_timer_sync(&dev->vid_timeout); 884 885 spin_lock_irqsave(&dev->slock, flags); 886 if (dev->isoc_ctl.buf != NULL) { 887 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf, 888 VB2_BUF_STATE_ERROR); 889 dev->isoc_ctl.buf = NULL; 890 } 891 while (!list_empty(&vidq->active)) { 892 struct au0828_buffer *buf; 893 894 buf = list_entry(vidq->active.next, struct au0828_buffer, list); 895 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 896 list_del(&buf->list); 897 } 898 spin_unlock_irqrestore(&dev->slock, flags); 899 } 900 901 void au0828_stop_vbi_streaming(struct vb2_queue *vq) 902 { 903 struct au0828_dev *dev = vb2_get_drv_priv(vq); 904 struct au0828_dmaqueue *vbiq = &dev->vbiq; 905 unsigned long flags = 0; 906 907 dprintk(1, "au0828_stop_vbi_streaming called %d\n", 908 dev->streaming_users); 909 910 if (dev->streaming_users-- == 1) 911 au0828_uninit_isoc(dev); 912 913 spin_lock_irqsave(&dev->slock, flags); 914 if (dev->isoc_ctl.vbi_buf != NULL) { 915 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf, 916 VB2_BUF_STATE_ERROR); 917 dev->isoc_ctl.vbi_buf = NULL; 918 } 919 while (!list_empty(&vbiq->active)) { 920 struct au0828_buffer *buf; 921 922 buf = list_entry(vbiq->active.next, struct au0828_buffer, list); 923 list_del(&buf->list); 924 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 925 } 926 spin_unlock_irqrestore(&dev->slock, flags); 927 928 dev->vbi_timeout_running = 0; 929 del_timer_sync(&dev->vbi_timeout); 930 } 931 932 static struct vb2_ops au0828_video_qops = { 933 .queue_setup = queue_setup, 934 .buf_prepare = buffer_prepare, 935 .buf_queue = buffer_queue, 936 .start_streaming = au0828_start_analog_streaming, 937 .stop_streaming = au0828_stop_streaming, 938 .wait_prepare = vb2_ops_wait_prepare, 939 .wait_finish = vb2_ops_wait_finish, 940 }; 941 942 /* ------------------------------------------------------------------ 943 V4L2 interface 944 ------------------------------------------------------------------*/ 945 /* 946 * au0828_analog_unregister 947 * unregister v4l2 devices 948 */ 949 int au0828_analog_unregister(struct au0828_dev *dev) 950 { 951 dprintk(1, "au0828_analog_unregister called\n"); 952 953 /* No analog TV */ 954 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 955 return 0; 956 957 mutex_lock(&au0828_sysfs_lock); 958 video_unregister_device(&dev->vdev); 959 video_unregister_device(&dev->vbi_dev); 960 mutex_unlock(&au0828_sysfs_lock); 961 962 v4l2_device_disconnect(&dev->v4l2_dev); 963 v4l2_device_put(&dev->v4l2_dev); 964 965 return 1; 966 } 967 968 /* This function ensures that video frames continue to be delivered even if 969 the ITU-656 input isn't receiving any data (thereby preventing applications 970 such as tvtime from hanging) */ 971 static void au0828_vid_buffer_timeout(unsigned long data) 972 { 973 struct au0828_dev *dev = (struct au0828_dev *) data; 974 struct au0828_dmaqueue *dma_q = &dev->vidq; 975 struct au0828_buffer *buf; 976 unsigned char *vid_data; 977 unsigned long flags = 0; 978 979 spin_lock_irqsave(&dev->slock, flags); 980 981 buf = dev->isoc_ctl.buf; 982 if (buf != NULL) { 983 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 984 memset(vid_data, 0x00, buf->length); /* Blank green frame */ 985 buffer_filled(dev, dma_q, buf); 986 } 987 get_next_buf(dma_q, &buf); 988 989 if (dev->vid_timeout_running == 1) 990 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 991 992 spin_unlock_irqrestore(&dev->slock, flags); 993 } 994 995 static void au0828_vbi_buffer_timeout(unsigned long data) 996 { 997 struct au0828_dev *dev = (struct au0828_dev *) data; 998 struct au0828_dmaqueue *dma_q = &dev->vbiq; 999 struct au0828_buffer *buf; 1000 unsigned char *vbi_data; 1001 unsigned long flags = 0; 1002 1003 spin_lock_irqsave(&dev->slock, flags); 1004 1005 buf = dev->isoc_ctl.vbi_buf; 1006 if (buf != NULL) { 1007 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 1008 memset(vbi_data, 0x00, buf->length); 1009 buffer_filled(dev, dma_q, buf); 1010 } 1011 vbi_get_next_buf(dma_q, &buf); 1012 1013 if (dev->vbi_timeout_running == 1) 1014 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1015 spin_unlock_irqrestore(&dev->slock, flags); 1016 } 1017 1018 static int au0828_v4l2_open(struct file *filp) 1019 { 1020 struct au0828_dev *dev = video_drvdata(filp); 1021 int ret; 1022 1023 dprintk(1, 1024 "%s called std_set %d dev_state %ld stream users %d users %d\n", 1025 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1026 dev->streaming_users, dev->users); 1027 1028 if (mutex_lock_interruptible(&dev->lock)) 1029 return -ERESTARTSYS; 1030 1031 ret = v4l2_fh_open(filp); 1032 if (ret) { 1033 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n", 1034 __func__, ret); 1035 mutex_unlock(&dev->lock); 1036 return ret; 1037 } 1038 1039 if (dev->users == 0) { 1040 au0828_analog_stream_enable(dev); 1041 au0828_analog_stream_reset(dev); 1042 dev->stream_state = STREAM_OFF; 1043 set_bit(DEV_INITIALIZED, &dev->dev_state); 1044 } 1045 dev->users++; 1046 mutex_unlock(&dev->lock); 1047 return ret; 1048 } 1049 1050 static int au0828_v4l2_close(struct file *filp) 1051 { 1052 int ret; 1053 struct au0828_dev *dev = video_drvdata(filp); 1054 struct video_device *vdev = video_devdata(filp); 1055 1056 dprintk(1, 1057 "%s called std_set %d dev_state %ld stream users %d users %d\n", 1058 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1059 dev->streaming_users, dev->users); 1060 1061 mutex_lock(&dev->lock); 1062 if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) { 1063 /* Cancel timeout thread in case they didn't call streamoff */ 1064 dev->vid_timeout_running = 0; 1065 del_timer_sync(&dev->vid_timeout); 1066 } else if (vdev->vfl_type == VFL_TYPE_VBI && 1067 dev->vbi_timeout_running) { 1068 /* Cancel timeout thread in case they didn't call streamoff */ 1069 dev->vbi_timeout_running = 0; 1070 del_timer_sync(&dev->vbi_timeout); 1071 } 1072 1073 if (test_bit(DEV_DISCONNECTED, &dev->dev_state)) 1074 goto end; 1075 1076 if (dev->users == 1) { 1077 /* 1078 * Avoid putting tuner in sleep if DVB or ALSA are 1079 * streaming. 1080 * 1081 * On most USB devices like au0828 the tuner can 1082 * be safely put in sleep stare here if ALSA isn't 1083 * streaming. Exceptions are some very old USB tuner 1084 * models such as em28xx-based WinTV USB2 which have 1085 * a separate audio output jack. The devices that have 1086 * a separate audio output jack have analog tuners, 1087 * like Philips FM1236. Those devices are always on, 1088 * so the s_power callback are silently ignored. 1089 * So, the current logic here does the following: 1090 * Disable (put tuner to sleep) when 1091 * - ALSA and DVB aren't not streaming; 1092 * - the last V4L2 file handler is closed. 1093 * 1094 * FIXME: 1095 * 1096 * Additionally, this logic could be improved to 1097 * disable the media source if the above conditions 1098 * are met and if the device: 1099 * - doesn't have a separate audio out plug (or 1100 * - doesn't use a silicon tuner like xc2028/3028/4000/5000). 1101 * 1102 * Once this additional logic is in place, a callback 1103 * is needed to enable the media source and power on 1104 * the tuner, for radio to work. 1105 */ 1106 ret = v4l_enable_media_source(vdev); 1107 if (ret == 0) 1108 v4l2_device_call_all(&dev->v4l2_dev, 0, core, 1109 s_power, 0); 1110 dev->std_set_in_tuner_core = 0; 1111 1112 /* When close the device, set the usb intf0 into alt0 to free 1113 USB bandwidth */ 1114 ret = usb_set_interface(dev->usbdev, 0, 0); 1115 if (ret < 0) 1116 pr_info("Au0828 can't set alternate to 0!\n"); 1117 } 1118 end: 1119 _vb2_fop_release(filp, NULL); 1120 dev->users--; 1121 mutex_unlock(&dev->lock); 1122 return 0; 1123 } 1124 1125 /* Must be called with dev->lock held */ 1126 static void au0828_init_tuner(struct au0828_dev *dev) 1127 { 1128 struct v4l2_frequency f = { 1129 .frequency = dev->ctrl_freq, 1130 .type = V4L2_TUNER_ANALOG_TV, 1131 }; 1132 1133 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1134 dev->std_set_in_tuner_core, dev->dev_state); 1135 1136 if (dev->std_set_in_tuner_core) 1137 return; 1138 dev->std_set_in_tuner_core = 1; 1139 i2c_gate_ctrl(dev, 1); 1140 /* If we've never sent the standard in tuner core, do so now. 1141 We don't do this at device probe because we don't want to 1142 incur the cost of a firmware load */ 1143 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std); 1144 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 1145 i2c_gate_ctrl(dev, 0); 1146 } 1147 1148 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd, 1149 struct v4l2_format *format) 1150 { 1151 int ret; 1152 int width = format->fmt.pix.width; 1153 int height = format->fmt.pix.height; 1154 1155 /* If they are demanding a format other than the one we support, 1156 bail out (tvtime asks for UYVY and then retries with YUYV) */ 1157 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY) 1158 return -EINVAL; 1159 1160 /* format->fmt.pix.width only support 720 and height 480 */ 1161 if (width != 720) 1162 width = 720; 1163 if (height != 480) 1164 height = 480; 1165 1166 format->fmt.pix.width = width; 1167 format->fmt.pix.height = height; 1168 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1169 format->fmt.pix.bytesperline = width * 2; 1170 format->fmt.pix.sizeimage = width * height * 2; 1171 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1172 format->fmt.pix.field = V4L2_FIELD_INTERLACED; 1173 format->fmt.pix.priv = 0; 1174 1175 if (cmd == VIDIOC_TRY_FMT) 1176 return 0; 1177 1178 /* maybe set new image format, driver current only support 720*480 */ 1179 dev->width = width; 1180 dev->height = height; 1181 dev->frame_size = width * height * 2; 1182 dev->field_size = width * height; 1183 dev->bytesperline = width * 2; 1184 1185 if (dev->stream_state == STREAM_ON) { 1186 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n"); 1187 ret = au0828_stream_interrupt(dev); 1188 if (ret != 0) { 1189 dprintk(1, "error interrupting video stream!\n"); 1190 return ret; 1191 } 1192 } 1193 1194 au0828_analog_stream_enable(dev); 1195 1196 return 0; 1197 } 1198 1199 static int vidioc_querycap(struct file *file, void *priv, 1200 struct v4l2_capability *cap) 1201 { 1202 struct video_device *vdev = video_devdata(file); 1203 struct au0828_dev *dev = video_drvdata(file); 1204 1205 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1206 dev->std_set_in_tuner_core, dev->dev_state); 1207 1208 strlcpy(cap->driver, "au0828", sizeof(cap->driver)); 1209 strlcpy(cap->card, dev->board.name, sizeof(cap->card)); 1210 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info)); 1211 1212 /* set the device capabilities */ 1213 cap->device_caps = V4L2_CAP_AUDIO | 1214 V4L2_CAP_READWRITE | 1215 V4L2_CAP_STREAMING | 1216 V4L2_CAP_TUNER; 1217 if (vdev->vfl_type == VFL_TYPE_GRABBER) 1218 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE; 1219 else 1220 cap->device_caps |= V4L2_CAP_VBI_CAPTURE; 1221 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS | 1222 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE; 1223 return 0; 1224 } 1225 1226 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1227 struct v4l2_fmtdesc *f) 1228 { 1229 if (f->index) 1230 return -EINVAL; 1231 1232 dprintk(1, "%s called\n", __func__); 1233 1234 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1235 strcpy(f->description, "Packed YUV2"); 1236 1237 f->flags = 0; 1238 f->pixelformat = V4L2_PIX_FMT_UYVY; 1239 1240 return 0; 1241 } 1242 1243 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 1244 struct v4l2_format *f) 1245 { 1246 struct au0828_dev *dev = video_drvdata(file); 1247 1248 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1249 dev->std_set_in_tuner_core, dev->dev_state); 1250 1251 f->fmt.pix.width = dev->width; 1252 f->fmt.pix.height = dev->height; 1253 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1254 f->fmt.pix.bytesperline = dev->bytesperline; 1255 f->fmt.pix.sizeimage = dev->frame_size; 1256 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */ 1257 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 1258 f->fmt.pix.priv = 0; 1259 return 0; 1260 } 1261 1262 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 1263 struct v4l2_format *f) 1264 { 1265 struct au0828_dev *dev = video_drvdata(file); 1266 1267 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1268 dev->std_set_in_tuner_core, dev->dev_state); 1269 1270 return au0828_set_format(dev, VIDIOC_TRY_FMT, f); 1271 } 1272 1273 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1274 struct v4l2_format *f) 1275 { 1276 struct au0828_dev *dev = video_drvdata(file); 1277 int rc; 1278 1279 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1280 dev->std_set_in_tuner_core, dev->dev_state); 1281 1282 rc = check_dev(dev); 1283 if (rc < 0) 1284 return rc; 1285 1286 if (vb2_is_busy(&dev->vb_vidq)) { 1287 pr_info("%s queue busy\n", __func__); 1288 rc = -EBUSY; 1289 goto out; 1290 } 1291 1292 rc = au0828_set_format(dev, VIDIOC_S_FMT, f); 1293 out: 1294 return rc; 1295 } 1296 1297 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) 1298 { 1299 struct au0828_dev *dev = video_drvdata(file); 1300 1301 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1302 dev->std_set_in_tuner_core, dev->dev_state); 1303 1304 if (norm == dev->std) 1305 return 0; 1306 1307 if (dev->streaming_users > 0) 1308 return -EBUSY; 1309 1310 dev->std = norm; 1311 1312 au0828_init_tuner(dev); 1313 1314 i2c_gate_ctrl(dev, 1); 1315 1316 /* 1317 * FIXME: when we support something other than 60Hz standards, 1318 * we are going to have to make the au0828 bridge adjust the size 1319 * of its capture buffer, which is currently hardcoded at 720x480 1320 */ 1321 1322 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm); 1323 1324 i2c_gate_ctrl(dev, 0); 1325 1326 return 0; 1327 } 1328 1329 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) 1330 { 1331 struct au0828_dev *dev = video_drvdata(file); 1332 1333 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1334 dev->std_set_in_tuner_core, dev->dev_state); 1335 1336 *norm = dev->std; 1337 return 0; 1338 } 1339 1340 static int vidioc_enum_input(struct file *file, void *priv, 1341 struct v4l2_input *input) 1342 { 1343 struct au0828_dev *dev = video_drvdata(file); 1344 unsigned int tmp; 1345 1346 static const char *inames[] = { 1347 [AU0828_VMUX_UNDEFINED] = "Undefined", 1348 [AU0828_VMUX_COMPOSITE] = "Composite", 1349 [AU0828_VMUX_SVIDEO] = "S-Video", 1350 [AU0828_VMUX_CABLE] = "Cable TV", 1351 [AU0828_VMUX_TELEVISION] = "Television", 1352 [AU0828_VMUX_DVB] = "DVB", 1353 }; 1354 1355 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1356 dev->std_set_in_tuner_core, dev->dev_state); 1357 1358 tmp = input->index; 1359 1360 if (tmp >= AU0828_MAX_INPUT) 1361 return -EINVAL; 1362 if (AUVI_INPUT(tmp).type == 0) 1363 return -EINVAL; 1364 1365 input->index = tmp; 1366 strcpy(input->name, inames[AUVI_INPUT(tmp).type]); 1367 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) || 1368 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) { 1369 input->type |= V4L2_INPUT_TYPE_TUNER; 1370 input->audioset = 1; 1371 } else { 1372 input->type |= V4L2_INPUT_TYPE_CAMERA; 1373 input->audioset = 2; 1374 } 1375 1376 input->std = dev->vdev.tvnorms; 1377 1378 return 0; 1379 } 1380 1381 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1382 { 1383 struct au0828_dev *dev = video_drvdata(file); 1384 1385 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1386 dev->std_set_in_tuner_core, dev->dev_state); 1387 1388 *i = dev->ctrl_input; 1389 return 0; 1390 } 1391 1392 static void au0828_s_input(struct au0828_dev *dev, int index) 1393 { 1394 int i; 1395 1396 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1397 dev->std_set_in_tuner_core, dev->dev_state); 1398 1399 switch (AUVI_INPUT(index).type) { 1400 case AU0828_VMUX_SVIDEO: 1401 dev->input_type = AU0828_VMUX_SVIDEO; 1402 dev->ctrl_ainput = 1; 1403 break; 1404 case AU0828_VMUX_COMPOSITE: 1405 dev->input_type = AU0828_VMUX_COMPOSITE; 1406 dev->ctrl_ainput = 1; 1407 break; 1408 case AU0828_VMUX_TELEVISION: 1409 dev->input_type = AU0828_VMUX_TELEVISION; 1410 dev->ctrl_ainput = 0; 1411 break; 1412 default: 1413 dprintk(1, "unknown input type set [%d]\n", 1414 AUVI_INPUT(index).type); 1415 return; 1416 } 1417 1418 dev->ctrl_input = index; 1419 1420 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 1421 AUVI_INPUT(index).vmux, 0, 0); 1422 1423 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1424 int enable = 0; 1425 if (AUVI_INPUT(i).audio_setup == NULL) 1426 continue; 1427 1428 if (i == index) 1429 enable = 1; 1430 else 1431 enable = 0; 1432 if (enable) { 1433 (AUVI_INPUT(i).audio_setup)(dev, enable); 1434 } else { 1435 /* Make sure we leave it turned on if some 1436 other input is routed to this callback */ 1437 if ((AUVI_INPUT(i).audio_setup) != 1438 ((AUVI_INPUT(index).audio_setup))) { 1439 (AUVI_INPUT(i).audio_setup)(dev, enable); 1440 } 1441 } 1442 } 1443 1444 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 1445 AUVI_INPUT(index).amux, 0, 0); 1446 } 1447 1448 static int vidioc_s_input(struct file *file, void *priv, unsigned int index) 1449 { 1450 struct au0828_dev *dev = video_drvdata(file); 1451 struct video_device *vfd = video_devdata(file); 1452 1453 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__, 1454 index); 1455 if (index >= AU0828_MAX_INPUT) 1456 return -EINVAL; 1457 if (AUVI_INPUT(index).type == 0) 1458 return -EINVAL; 1459 1460 if (dev->ctrl_input == index) 1461 return 0; 1462 1463 au0828_s_input(dev, index); 1464 1465 /* 1466 * Input has been changed. Disable the media source 1467 * associated with the old input and enable source 1468 * for the newly set input 1469 */ 1470 v4l_disable_media_source(vfd); 1471 return v4l_enable_media_source(vfd); 1472 } 1473 1474 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a) 1475 { 1476 if (a->index > 1) 1477 return -EINVAL; 1478 1479 dprintk(1, "%s called\n", __func__); 1480 1481 if (a->index == 0) 1482 strcpy(a->name, "Television"); 1483 else 1484 strcpy(a->name, "Line in"); 1485 1486 a->capability = V4L2_AUDCAP_STEREO; 1487 return 0; 1488 } 1489 1490 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 1491 { 1492 struct au0828_dev *dev = video_drvdata(file); 1493 1494 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1495 dev->std_set_in_tuner_core, dev->dev_state); 1496 1497 a->index = dev->ctrl_ainput; 1498 if (a->index == 0) 1499 strcpy(a->name, "Television"); 1500 else 1501 strcpy(a->name, "Line in"); 1502 1503 a->capability = V4L2_AUDCAP_STEREO; 1504 return 0; 1505 } 1506 1507 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 1508 { 1509 struct au0828_dev *dev = video_drvdata(file); 1510 1511 if (a->index != dev->ctrl_ainput) 1512 return -EINVAL; 1513 1514 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1515 dev->std_set_in_tuner_core, dev->dev_state); 1516 return 0; 1517 } 1518 1519 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1520 { 1521 struct au0828_dev *dev = video_drvdata(file); 1522 struct video_device *vfd = video_devdata(file); 1523 int ret; 1524 1525 if (t->index != 0) 1526 return -EINVAL; 1527 1528 ret = v4l_enable_media_source(vfd); 1529 if (ret) 1530 return ret; 1531 1532 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1533 dev->std_set_in_tuner_core, dev->dev_state); 1534 1535 strcpy(t->name, "Auvitek tuner"); 1536 1537 au0828_init_tuner(dev); 1538 i2c_gate_ctrl(dev, 1); 1539 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 1540 i2c_gate_ctrl(dev, 0); 1541 return 0; 1542 } 1543 1544 static int vidioc_s_tuner(struct file *file, void *priv, 1545 const struct v4l2_tuner *t) 1546 { 1547 struct au0828_dev *dev = video_drvdata(file); 1548 1549 if (t->index != 0) 1550 return -EINVAL; 1551 1552 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1553 dev->std_set_in_tuner_core, dev->dev_state); 1554 1555 au0828_init_tuner(dev); 1556 i2c_gate_ctrl(dev, 1); 1557 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 1558 i2c_gate_ctrl(dev, 0); 1559 1560 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal, 1561 t->afc); 1562 1563 return 0; 1564 1565 } 1566 1567 static int vidioc_g_frequency(struct file *file, void *priv, 1568 struct v4l2_frequency *freq) 1569 { 1570 struct au0828_dev *dev = video_drvdata(file); 1571 1572 if (freq->tuner != 0) 1573 return -EINVAL; 1574 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1575 dev->std_set_in_tuner_core, dev->dev_state); 1576 freq->frequency = dev->ctrl_freq; 1577 return 0; 1578 } 1579 1580 static int vidioc_s_frequency(struct file *file, void *priv, 1581 const struct v4l2_frequency *freq) 1582 { 1583 struct au0828_dev *dev = video_drvdata(file); 1584 struct v4l2_frequency new_freq = *freq; 1585 1586 if (freq->tuner != 0) 1587 return -EINVAL; 1588 1589 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1590 dev->std_set_in_tuner_core, dev->dev_state); 1591 1592 au0828_init_tuner(dev); 1593 i2c_gate_ctrl(dev, 1); 1594 1595 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq); 1596 /* Get the actual set (and possibly clamped) frequency */ 1597 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq); 1598 dev->ctrl_freq = new_freq.frequency; 1599 1600 i2c_gate_ctrl(dev, 0); 1601 1602 au0828_analog_stream_reset(dev); 1603 1604 return 0; 1605 } 1606 1607 1608 /* RAW VBI ioctls */ 1609 1610 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 1611 struct v4l2_format *format) 1612 { 1613 struct au0828_dev *dev = video_drvdata(file); 1614 1615 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1616 dev->std_set_in_tuner_core, dev->dev_state); 1617 1618 format->fmt.vbi.samples_per_line = dev->vbi_width; 1619 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1620 format->fmt.vbi.offset = 0; 1621 format->fmt.vbi.flags = 0; 1622 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 1623 1624 format->fmt.vbi.count[0] = dev->vbi_height; 1625 format->fmt.vbi.count[1] = dev->vbi_height; 1626 format->fmt.vbi.start[0] = 21; 1627 format->fmt.vbi.start[1] = 284; 1628 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved)); 1629 1630 return 0; 1631 } 1632 1633 static int vidioc_cropcap(struct file *file, void *priv, 1634 struct v4l2_cropcap *cc) 1635 { 1636 struct au0828_dev *dev = video_drvdata(file); 1637 1638 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1639 return -EINVAL; 1640 1641 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1642 dev->std_set_in_tuner_core, dev->dev_state); 1643 1644 cc->bounds.left = 0; 1645 cc->bounds.top = 0; 1646 cc->bounds.width = dev->width; 1647 cc->bounds.height = dev->height; 1648 1649 cc->defrect = cc->bounds; 1650 1651 cc->pixelaspect.numerator = 54; 1652 cc->pixelaspect.denominator = 59; 1653 1654 return 0; 1655 } 1656 1657 #ifdef CONFIG_VIDEO_ADV_DEBUG 1658 static int vidioc_g_register(struct file *file, void *priv, 1659 struct v4l2_dbg_register *reg) 1660 { 1661 struct au0828_dev *dev = video_drvdata(file); 1662 1663 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1664 dev->std_set_in_tuner_core, dev->dev_state); 1665 1666 reg->val = au0828_read(dev, reg->reg); 1667 reg->size = 1; 1668 return 0; 1669 } 1670 1671 static int vidioc_s_register(struct file *file, void *priv, 1672 const struct v4l2_dbg_register *reg) 1673 { 1674 struct au0828_dev *dev = video_drvdata(file); 1675 1676 dprintk(1, "%s called std_set %d dev_state %ld\n", __func__, 1677 dev->std_set_in_tuner_core, dev->dev_state); 1678 1679 return au0828_writereg(dev, reg->reg, reg->val); 1680 } 1681 #endif 1682 1683 static int vidioc_log_status(struct file *file, void *fh) 1684 { 1685 struct video_device *vdev = video_devdata(file); 1686 1687 dprintk(1, "%s called\n", __func__); 1688 1689 v4l2_ctrl_log_status(file, fh); 1690 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status); 1691 return 0; 1692 } 1693 1694 void au0828_v4l2_suspend(struct au0828_dev *dev) 1695 { 1696 struct urb *urb; 1697 int i; 1698 1699 pr_info("stopping V4L2\n"); 1700 1701 if (dev->stream_state == STREAM_ON) { 1702 pr_info("stopping V4L2 active URBs\n"); 1703 au0828_analog_stream_disable(dev); 1704 /* stop urbs */ 1705 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1706 urb = dev->isoc_ctl.urb[i]; 1707 if (urb) { 1708 if (!irqs_disabled()) 1709 usb_kill_urb(urb); 1710 else 1711 usb_unlink_urb(urb); 1712 } 1713 } 1714 } 1715 1716 if (dev->vid_timeout_running) 1717 del_timer_sync(&dev->vid_timeout); 1718 if (dev->vbi_timeout_running) 1719 del_timer_sync(&dev->vbi_timeout); 1720 } 1721 1722 void au0828_v4l2_resume(struct au0828_dev *dev) 1723 { 1724 int i, rc; 1725 1726 pr_info("restarting V4L2\n"); 1727 1728 if (dev->stream_state == STREAM_ON) { 1729 au0828_stream_interrupt(dev); 1730 au0828_init_tuner(dev); 1731 } 1732 1733 if (dev->vid_timeout_running) 1734 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 1735 if (dev->vbi_timeout_running) 1736 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1737 1738 /* If we were doing ac97 instead of i2s, it would go here...*/ 1739 au0828_i2s_init(dev); 1740 1741 au0828_analog_stream_enable(dev); 1742 1743 if (!(dev->stream_state == STREAM_ON)) { 1744 au0828_analog_stream_reset(dev); 1745 /* submit urbs */ 1746 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1747 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 1748 if (rc) { 1749 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 1750 i, rc); 1751 au0828_uninit_isoc(dev); 1752 } 1753 } 1754 } 1755 } 1756 1757 static struct v4l2_file_operations au0828_v4l_fops = { 1758 .owner = THIS_MODULE, 1759 .open = au0828_v4l2_open, 1760 .release = au0828_v4l2_close, 1761 .read = vb2_fop_read, 1762 .poll = vb2_fop_poll, 1763 .mmap = vb2_fop_mmap, 1764 .unlocked_ioctl = video_ioctl2, 1765 }; 1766 1767 static const struct v4l2_ioctl_ops video_ioctl_ops = { 1768 .vidioc_querycap = vidioc_querycap, 1769 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1770 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1771 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1772 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1773 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1774 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1775 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1776 .vidioc_enumaudio = vidioc_enumaudio, 1777 .vidioc_g_audio = vidioc_g_audio, 1778 .vidioc_s_audio = vidioc_s_audio, 1779 .vidioc_cropcap = vidioc_cropcap, 1780 1781 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1782 .vidioc_create_bufs = vb2_ioctl_create_bufs, 1783 .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 1784 .vidioc_querybuf = vb2_ioctl_querybuf, 1785 .vidioc_qbuf = vb2_ioctl_qbuf, 1786 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1787 .vidioc_expbuf = vb2_ioctl_expbuf, 1788 1789 .vidioc_s_std = vidioc_s_std, 1790 .vidioc_g_std = vidioc_g_std, 1791 .vidioc_enum_input = vidioc_enum_input, 1792 .vidioc_g_input = vidioc_g_input, 1793 .vidioc_s_input = vidioc_s_input, 1794 1795 .vidioc_streamon = vb2_ioctl_streamon, 1796 .vidioc_streamoff = vb2_ioctl_streamoff, 1797 1798 .vidioc_g_tuner = vidioc_g_tuner, 1799 .vidioc_s_tuner = vidioc_s_tuner, 1800 .vidioc_g_frequency = vidioc_g_frequency, 1801 .vidioc_s_frequency = vidioc_s_frequency, 1802 #ifdef CONFIG_VIDEO_ADV_DEBUG 1803 .vidioc_g_register = vidioc_g_register, 1804 .vidioc_s_register = vidioc_s_register, 1805 #endif 1806 .vidioc_log_status = vidioc_log_status, 1807 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1808 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1809 }; 1810 1811 static const struct video_device au0828_video_template = { 1812 .fops = &au0828_v4l_fops, 1813 .release = video_device_release_empty, 1814 .ioctl_ops = &video_ioctl_ops, 1815 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M, 1816 }; 1817 1818 static int au0828_vb2_setup(struct au0828_dev *dev) 1819 { 1820 int rc; 1821 struct vb2_queue *q; 1822 1823 /* Setup Videobuf2 for Video capture */ 1824 q = &dev->vb_vidq; 1825 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1826 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1827 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1828 q->drv_priv = dev; 1829 q->buf_struct_size = sizeof(struct au0828_buffer); 1830 q->ops = &au0828_video_qops; 1831 q->mem_ops = &vb2_vmalloc_memops; 1832 1833 rc = vb2_queue_init(q); 1834 if (rc < 0) 1835 return rc; 1836 1837 /* Setup Videobuf2 for VBI capture */ 1838 q = &dev->vb_vbiq; 1839 q->type = V4L2_BUF_TYPE_VBI_CAPTURE; 1840 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1841 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1842 q->drv_priv = dev; 1843 q->buf_struct_size = sizeof(struct au0828_buffer); 1844 q->ops = &au0828_vbi_qops; 1845 q->mem_ops = &vb2_vmalloc_memops; 1846 1847 rc = vb2_queue_init(q); 1848 if (rc < 0) 1849 return rc; 1850 1851 return 0; 1852 } 1853 1854 static void au0828_analog_create_entities(struct au0828_dev *dev) 1855 { 1856 #if defined(CONFIG_MEDIA_CONTROLLER) 1857 static const char * const inames[] = { 1858 [AU0828_VMUX_COMPOSITE] = "Composite", 1859 [AU0828_VMUX_SVIDEO] = "S-Video", 1860 [AU0828_VMUX_CABLE] = "Cable TV", 1861 [AU0828_VMUX_TELEVISION] = "Television", 1862 [AU0828_VMUX_DVB] = "DVB", 1863 }; 1864 int ret, i; 1865 1866 /* Initialize Video and VBI pads */ 1867 dev->video_pad.flags = MEDIA_PAD_FL_SINK; 1868 ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad); 1869 if (ret < 0) 1870 pr_err("failed to initialize video media entity!\n"); 1871 1872 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK; 1873 ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad); 1874 if (ret < 0) 1875 pr_err("failed to initialize vbi media entity!\n"); 1876 1877 /* Create entities for each input connector */ 1878 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1879 struct media_entity *ent = &dev->input_ent[i]; 1880 1881 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) 1882 break; 1883 1884 ent->name = inames[AUVI_INPUT(i).type]; 1885 ent->flags = MEDIA_ENT_FL_CONNECTOR; 1886 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE; 1887 1888 switch (AUVI_INPUT(i).type) { 1889 case AU0828_VMUX_COMPOSITE: 1890 ent->function = MEDIA_ENT_F_CONN_COMPOSITE; 1891 break; 1892 case AU0828_VMUX_SVIDEO: 1893 ent->function = MEDIA_ENT_F_CONN_SVIDEO; 1894 break; 1895 case AU0828_VMUX_CABLE: 1896 case AU0828_VMUX_TELEVISION: 1897 case AU0828_VMUX_DVB: 1898 default: /* Just to shut up a warning */ 1899 ent->function = MEDIA_ENT_F_CONN_RF; 1900 break; 1901 } 1902 1903 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]); 1904 if (ret < 0) 1905 pr_err("failed to initialize input pad[%d]!\n", i); 1906 1907 ret = media_device_register_entity(dev->media_dev, ent); 1908 if (ret < 0) 1909 pr_err("failed to register input entity %d!\n", i); 1910 } 1911 #endif 1912 } 1913 1914 /**************************************************************************/ 1915 1916 int au0828_analog_register(struct au0828_dev *dev, 1917 struct usb_interface *interface) 1918 { 1919 int retval = -ENOMEM; 1920 struct usb_host_interface *iface_desc; 1921 struct usb_endpoint_descriptor *endpoint; 1922 int i, ret; 1923 1924 dprintk(1, "au0828_analog_register called for intf#%d!\n", 1925 interface->cur_altsetting->desc.bInterfaceNumber); 1926 1927 /* No analog TV */ 1928 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 1929 return 0; 1930 1931 /* set au0828 usb interface0 to as5 */ 1932 retval = usb_set_interface(dev->usbdev, 1933 interface->cur_altsetting->desc.bInterfaceNumber, 5); 1934 if (retval != 0) { 1935 pr_info("Failure setting usb interface0 to as5\n"); 1936 return retval; 1937 } 1938 1939 /* Figure out which endpoint has the isoc interface */ 1940 iface_desc = interface->cur_altsetting; 1941 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { 1942 endpoint = &iface_desc->endpoint[i].desc; 1943 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1944 == USB_DIR_IN) && 1945 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1946 == USB_ENDPOINT_XFER_ISOC)) { 1947 1948 /* we find our isoc in endpoint */ 1949 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize); 1950 dev->max_pkt_size = (tmp & 0x07ff) * 1951 (((tmp & 0x1800) >> 11) + 1); 1952 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress; 1953 dprintk(1, 1954 "Found isoc endpoint 0x%02x, max size = %d\n", 1955 dev->isoc_in_endpointaddr, dev->max_pkt_size); 1956 } 1957 } 1958 if (!(dev->isoc_in_endpointaddr)) { 1959 pr_info("Could not locate isoc endpoint\n"); 1960 return -ENODEV; 1961 } 1962 1963 init_waitqueue_head(&dev->open); 1964 spin_lock_init(&dev->slock); 1965 1966 /* init video dma queues */ 1967 INIT_LIST_HEAD(&dev->vidq.active); 1968 INIT_LIST_HEAD(&dev->vbiq.active); 1969 1970 setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout, 1971 (unsigned long)dev); 1972 setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 1973 (unsigned long)dev); 1974 1975 dev->width = NTSC_STD_W; 1976 dev->height = NTSC_STD_H; 1977 dev->field_size = dev->width * dev->height; 1978 dev->frame_size = dev->field_size << 1; 1979 dev->bytesperline = dev->width << 1; 1980 dev->vbi_width = 720; 1981 dev->vbi_height = 1; 1982 dev->ctrl_ainput = 0; 1983 dev->ctrl_freq = 960; 1984 dev->std = V4L2_STD_NTSC_M; 1985 /* Default input is TV Tuner */ 1986 au0828_s_input(dev, 0); 1987 1988 mutex_init(&dev->vb_queue_lock); 1989 mutex_init(&dev->vb_vbi_queue_lock); 1990 1991 /* Fill the video capture device struct */ 1992 dev->vdev = au0828_video_template; 1993 dev->vdev.v4l2_dev = &dev->v4l2_dev; 1994 dev->vdev.lock = &dev->lock; 1995 dev->vdev.queue = &dev->vb_vidq; 1996 dev->vdev.queue->lock = &dev->vb_queue_lock; 1997 strcpy(dev->vdev.name, "au0828a video"); 1998 1999 /* Setup the VBI device */ 2000 dev->vbi_dev = au0828_video_template; 2001 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev; 2002 dev->vbi_dev.lock = &dev->lock; 2003 dev->vbi_dev.queue = &dev->vb_vbiq; 2004 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock; 2005 strcpy(dev->vbi_dev.name, "au0828a vbi"); 2006 2007 /* Init entities at the Media Controller */ 2008 au0828_analog_create_entities(dev); 2009 2010 /* initialize videobuf2 stuff */ 2011 retval = au0828_vb2_setup(dev); 2012 if (retval != 0) { 2013 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n", 2014 retval); 2015 return -ENODEV; 2016 } 2017 2018 /* Register the v4l2 device */ 2019 video_set_drvdata(&dev->vdev, dev); 2020 retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1); 2021 if (retval != 0) { 2022 dprintk(1, "unable to register video device (error = %d).\n", 2023 retval); 2024 ret = -ENODEV; 2025 goto err_reg_vdev; 2026 } 2027 2028 /* Register the vbi device */ 2029 video_set_drvdata(&dev->vbi_dev, dev); 2030 retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1); 2031 if (retval != 0) { 2032 dprintk(1, "unable to register vbi device (error = %d).\n", 2033 retval); 2034 ret = -ENODEV; 2035 goto err_reg_vbi_dev; 2036 } 2037 2038 #ifdef CONFIG_MEDIA_CONTROLLER 2039 retval = v4l2_mc_create_media_graph(dev->media_dev); 2040 if (retval) { 2041 pr_err("%s() au0282_dev_register failed to create graph\n", 2042 __func__); 2043 ret = -ENODEV; 2044 goto err_reg_vbi_dev; 2045 } 2046 #endif 2047 2048 dprintk(1, "%s completed!\n", __func__); 2049 2050 return 0; 2051 2052 err_reg_vbi_dev: 2053 video_unregister_device(&dev->vdev); 2054 err_reg_vdev: 2055 vb2_queue_release(&dev->vb_vidq); 2056 vb2_queue_release(&dev->vb_vbiq); 2057 return ret; 2058 } 2059 2060