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 (dev->dev_state & DEV_DISCONNECTED) { 110 pr_info("v4l2 ioctl: device not present\n"); 111 return -ENODEV; 112 } 113 114 if (dev->dev_state & DEV_MISCONFIGURED) { 115 pr_info("v4l2 ioctl: device is misconfigured; " 116 "close and open it again\n"); 117 return -EIO; 118 } 119 return 0; 120 } 121 122 /* 123 * IRQ callback, called by URB callback 124 */ 125 static void au0828_irq_callback(struct urb *urb) 126 { 127 struct au0828_dmaqueue *dma_q = urb->context; 128 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 129 unsigned long flags = 0; 130 int i; 131 132 switch (urb->status) { 133 case 0: /* success */ 134 case -ETIMEDOUT: /* NAK */ 135 break; 136 case -ECONNRESET: /* kill */ 137 case -ENOENT: 138 case -ESHUTDOWN: 139 au0828_isocdbg("au0828_irq_callback called: status kill\n"); 140 return; 141 default: /* unknown error */ 142 au0828_isocdbg("urb completition error %d.\n", urb->status); 143 break; 144 } 145 146 /* Copy data from URB */ 147 spin_lock_irqsave(&dev->slock, flags); 148 dev->isoc_ctl.isoc_copy(dev, urb); 149 spin_unlock_irqrestore(&dev->slock, flags); 150 151 /* Reset urb buffers */ 152 for (i = 0; i < urb->number_of_packets; i++) { 153 urb->iso_frame_desc[i].status = 0; 154 urb->iso_frame_desc[i].actual_length = 0; 155 } 156 urb->status = 0; 157 158 urb->status = usb_submit_urb(urb, GFP_ATOMIC); 159 if (urb->status) { 160 au0828_isocdbg("urb resubmit failed (error=%i)\n", 161 urb->status); 162 } 163 dev->stream_state = STREAM_ON; 164 } 165 166 /* 167 * Stop and Deallocate URBs 168 */ 169 static void au0828_uninit_isoc(struct au0828_dev *dev) 170 { 171 struct urb *urb; 172 int i; 173 174 au0828_isocdbg("au0828: called au0828_uninit_isoc\n"); 175 176 dev->isoc_ctl.nfields = -1; 177 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 178 urb = dev->isoc_ctl.urb[i]; 179 if (urb) { 180 if (!irqs_disabled()) 181 usb_kill_urb(urb); 182 else 183 usb_unlink_urb(urb); 184 185 if (dev->isoc_ctl.transfer_buffer[i]) { 186 usb_free_coherent(dev->usbdev, 187 urb->transfer_buffer_length, 188 dev->isoc_ctl.transfer_buffer[i], 189 urb->transfer_dma); 190 } 191 usb_free_urb(urb); 192 dev->isoc_ctl.urb[i] = NULL; 193 } 194 dev->isoc_ctl.transfer_buffer[i] = NULL; 195 } 196 197 kfree(dev->isoc_ctl.urb); 198 kfree(dev->isoc_ctl.transfer_buffer); 199 200 dev->isoc_ctl.urb = NULL; 201 dev->isoc_ctl.transfer_buffer = NULL; 202 dev->isoc_ctl.num_bufs = 0; 203 204 dev->stream_state = STREAM_OFF; 205 } 206 207 /* 208 * Allocate URBs and start IRQ 209 */ 210 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets, 211 int num_bufs, int max_pkt_size, 212 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb)) 213 { 214 struct au0828_dmaqueue *dma_q = &dev->vidq; 215 int i; 216 int sb_size, pipe; 217 struct urb *urb; 218 int j, k; 219 int rc; 220 221 au0828_isocdbg("au0828: called au0828_prepare_isoc\n"); 222 223 dev->isoc_ctl.isoc_copy = isoc_copy; 224 dev->isoc_ctl.num_bufs = num_bufs; 225 226 dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL); 227 if (!dev->isoc_ctl.urb) { 228 au0828_isocdbg("cannot alloc memory for usb buffers\n"); 229 return -ENOMEM; 230 } 231 232 dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs, 233 GFP_KERNEL); 234 if (!dev->isoc_ctl.transfer_buffer) { 235 au0828_isocdbg("cannot allocate memory for usb transfer\n"); 236 kfree(dev->isoc_ctl.urb); 237 return -ENOMEM; 238 } 239 240 dev->isoc_ctl.max_pkt_size = max_pkt_size; 241 dev->isoc_ctl.buf = NULL; 242 243 sb_size = max_packets * dev->isoc_ctl.max_pkt_size; 244 245 /* allocate urbs and transfer buffers */ 246 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 247 urb = usb_alloc_urb(max_packets, GFP_KERNEL); 248 if (!urb) { 249 au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i); 250 au0828_uninit_isoc(dev); 251 return -ENOMEM; 252 } 253 dev->isoc_ctl.urb[i] = urb; 254 255 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev, 256 sb_size, GFP_KERNEL, &urb->transfer_dma); 257 if (!dev->isoc_ctl.transfer_buffer[i]) { 258 printk("unable to allocate %i bytes for transfer" 259 " buffer %i%s\n", 260 sb_size, i, 261 in_interrupt() ? " while in int" : ""); 262 au0828_uninit_isoc(dev); 263 return -ENOMEM; 264 } 265 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size); 266 267 pipe = usb_rcvisocpipe(dev->usbdev, 268 dev->isoc_in_endpointaddr), 269 270 usb_fill_int_urb(urb, dev->usbdev, pipe, 271 dev->isoc_ctl.transfer_buffer[i], sb_size, 272 au0828_irq_callback, dma_q, 1); 273 274 urb->number_of_packets = max_packets; 275 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; 276 277 k = 0; 278 for (j = 0; j < max_packets; j++) { 279 urb->iso_frame_desc[j].offset = k; 280 urb->iso_frame_desc[j].length = 281 dev->isoc_ctl.max_pkt_size; 282 k += dev->isoc_ctl.max_pkt_size; 283 } 284 } 285 286 /* submit urbs and enables IRQ */ 287 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 288 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 289 if (rc) { 290 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 291 i, rc); 292 au0828_uninit_isoc(dev); 293 return rc; 294 } 295 } 296 297 return 0; 298 } 299 300 /* 301 * Announces that a buffer were filled and request the next 302 */ 303 static inline void buffer_filled(struct au0828_dev *dev, 304 struct au0828_dmaqueue *dma_q, 305 struct au0828_buffer *buf) 306 { 307 struct vb2_v4l2_buffer *vb = &buf->vb; 308 struct vb2_queue *q = vb->vb2_buf.vb2_queue; 309 310 /* Advice that buffer was filled */ 311 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field); 312 313 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 314 vb->sequence = dev->frame_count++; 315 else 316 vb->sequence = dev->vbi_frame_count++; 317 318 vb->field = V4L2_FIELD_INTERLACED; 319 vb->vb2_buf.timestamp = ktime_get_ns(); 320 vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE); 321 } 322 323 /* 324 * Identify the buffer header type and properly handles 325 */ 326 static void au0828_copy_video(struct au0828_dev *dev, 327 struct au0828_dmaqueue *dma_q, 328 struct au0828_buffer *buf, 329 unsigned char *p, 330 unsigned char *outp, unsigned long len) 331 { 332 void *fieldstart, *startwrite, *startread; 333 int linesdone, currlinedone, offset, lencopy, remain; 334 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */ 335 336 if (len == 0) 337 return; 338 339 if (dma_q->pos + len > buf->length) 340 len = buf->length - dma_q->pos; 341 342 startread = p; 343 remain = len; 344 345 /* Interlaces frame */ 346 if (buf->top_field) 347 fieldstart = outp; 348 else 349 fieldstart = outp + bytesperline; 350 351 linesdone = dma_q->pos / bytesperline; 352 currlinedone = dma_q->pos % bytesperline; 353 offset = linesdone * bytesperline * 2 + currlinedone; 354 startwrite = fieldstart + offset; 355 lencopy = bytesperline - currlinedone; 356 lencopy = lencopy > remain ? remain : lencopy; 357 358 if ((char *)startwrite + lencopy > (char *)outp + buf->length) { 359 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n", 360 ((char *)startwrite + lencopy) - 361 ((char *)outp + buf->length)); 362 remain = (char *)outp + buf->length - (char *)startwrite; 363 lencopy = remain; 364 } 365 if (lencopy <= 0) 366 return; 367 memcpy(startwrite, startread, lencopy); 368 369 remain -= lencopy; 370 371 while (remain > 0) { 372 startwrite += lencopy + bytesperline; 373 startread += lencopy; 374 if (bytesperline > remain) 375 lencopy = remain; 376 else 377 lencopy = bytesperline; 378 379 if ((char *)startwrite + lencopy > (char *)outp + 380 buf->length) { 381 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n", 382 ((char *)startwrite + lencopy) - 383 ((char *)outp + buf->length)); 384 lencopy = remain = (char *)outp + buf->length - 385 (char *)startwrite; 386 } 387 if (lencopy <= 0) 388 break; 389 390 memcpy(startwrite, startread, lencopy); 391 392 remain -= lencopy; 393 } 394 395 if (offset > 1440) { 396 /* We have enough data to check for greenscreen */ 397 if (outp[0] < 0x60 && outp[1440] < 0x60) 398 dev->greenscreen_detected = 1; 399 } 400 401 dma_q->pos += len; 402 } 403 404 /* 405 * video-buf generic routine to get the next available buffer 406 */ 407 static inline void get_next_buf(struct au0828_dmaqueue *dma_q, 408 struct au0828_buffer **buf) 409 { 410 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 411 412 if (list_empty(&dma_q->active)) { 413 au0828_isocdbg("No active queue to serve\n"); 414 dev->isoc_ctl.buf = NULL; 415 *buf = NULL; 416 return; 417 } 418 419 /* Get the next buffer */ 420 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 421 /* Cleans up buffer - Useful for testing for frame/URB loss */ 422 list_del(&(*buf)->list); 423 dma_q->pos = 0; 424 (*buf)->vb_buf = (*buf)->mem; 425 dev->isoc_ctl.buf = *buf; 426 427 return; 428 } 429 430 static void au0828_copy_vbi(struct au0828_dev *dev, 431 struct au0828_dmaqueue *dma_q, 432 struct au0828_buffer *buf, 433 unsigned char *p, 434 unsigned char *outp, unsigned long len) 435 { 436 unsigned char *startwrite, *startread; 437 int bytesperline; 438 int i, j = 0; 439 440 if (dev == NULL) { 441 au0828_isocdbg("dev is null\n"); 442 return; 443 } 444 445 if (dma_q == NULL) { 446 au0828_isocdbg("dma_q is null\n"); 447 return; 448 } 449 if (buf == NULL) 450 return; 451 if (p == NULL) { 452 au0828_isocdbg("p is null\n"); 453 return; 454 } 455 if (outp == NULL) { 456 au0828_isocdbg("outp is null\n"); 457 return; 458 } 459 460 bytesperline = dev->vbi_width; 461 462 if (dma_q->pos + len > buf->length) 463 len = buf->length - dma_q->pos; 464 465 startread = p; 466 startwrite = outp + (dma_q->pos / 2); 467 468 /* Make sure the bottom field populates the second half of the frame */ 469 if (buf->top_field == 0) 470 startwrite += bytesperline * dev->vbi_height; 471 472 for (i = 0; i < len; i += 2) 473 startwrite[j++] = startread[i+1]; 474 475 dma_q->pos += len; 476 } 477 478 479 /* 480 * video-buf generic routine to get the next available VBI buffer 481 */ 482 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q, 483 struct au0828_buffer **buf) 484 { 485 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq); 486 487 if (list_empty(&dma_q->active)) { 488 au0828_isocdbg("No active queue to serve\n"); 489 dev->isoc_ctl.vbi_buf = NULL; 490 *buf = NULL; 491 return; 492 } 493 494 /* Get the next buffer */ 495 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 496 /* Cleans up buffer - Useful for testing for frame/URB loss */ 497 list_del(&(*buf)->list); 498 dma_q->pos = 0; 499 (*buf)->vb_buf = (*buf)->mem; 500 dev->isoc_ctl.vbi_buf = *buf; 501 return; 502 } 503 504 /* 505 * Controls the isoc copy of each urb packet 506 */ 507 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb) 508 { 509 struct au0828_buffer *buf; 510 struct au0828_buffer *vbi_buf; 511 struct au0828_dmaqueue *dma_q = urb->context; 512 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq; 513 unsigned char *outp = NULL; 514 unsigned char *vbioutp = NULL; 515 int i, len = 0, rc = 1; 516 unsigned char *p; 517 unsigned char fbyte; 518 unsigned int vbi_field_size; 519 unsigned int remain, lencopy; 520 521 if (!dev) 522 return 0; 523 524 if ((dev->dev_state & DEV_DISCONNECTED) || 525 (dev->dev_state & DEV_MISCONFIGURED)) 526 return 0; 527 528 if (urb->status < 0) { 529 print_err_status(dev, -1, urb->status); 530 if (urb->status == -ENOENT) 531 return 0; 532 } 533 534 buf = dev->isoc_ctl.buf; 535 if (buf != NULL) 536 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 537 538 vbi_buf = dev->isoc_ctl.vbi_buf; 539 if (vbi_buf != NULL) 540 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0); 541 542 for (i = 0; i < urb->number_of_packets; i++) { 543 int status = urb->iso_frame_desc[i].status; 544 545 if (status < 0) { 546 print_err_status(dev, i, status); 547 if (urb->iso_frame_desc[i].status != -EPROTO) 548 continue; 549 } 550 551 if (urb->iso_frame_desc[i].actual_length <= 0) 552 continue; 553 554 if (urb->iso_frame_desc[i].actual_length > 555 dev->max_pkt_size) { 556 au0828_isocdbg("packet bigger than packet size"); 557 continue; 558 } 559 560 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset; 561 fbyte = p[0]; 562 len = urb->iso_frame_desc[i].actual_length - 4; 563 p += 4; 564 565 if (fbyte & 0x80) { 566 len -= 4; 567 p += 4; 568 au0828_isocdbg("Video frame %s\n", 569 (fbyte & 0x40) ? "odd" : "even"); 570 if (fbyte & 0x40) { 571 /* VBI */ 572 if (vbi_buf != NULL) 573 buffer_filled(dev, vbi_dma_q, vbi_buf); 574 vbi_get_next_buf(vbi_dma_q, &vbi_buf); 575 if (vbi_buf == NULL) 576 vbioutp = NULL; 577 else 578 vbioutp = vb2_plane_vaddr( 579 &vbi_buf->vb.vb2_buf, 0); 580 581 /* Video */ 582 if (buf != NULL) 583 buffer_filled(dev, dma_q, buf); 584 get_next_buf(dma_q, &buf); 585 if (buf == NULL) 586 outp = NULL; 587 else 588 outp = vb2_plane_vaddr( 589 &buf->vb.vb2_buf, 0); 590 591 /* As long as isoc traffic is arriving, keep 592 resetting the timer */ 593 if (dev->vid_timeout_running) 594 mod_timer(&dev->vid_timeout, 595 jiffies + (HZ / 10)); 596 if (dev->vbi_timeout_running) 597 mod_timer(&dev->vbi_timeout, 598 jiffies + (HZ / 10)); 599 } 600 601 if (buf != NULL) { 602 if (fbyte & 0x40) 603 buf->top_field = 1; 604 else 605 buf->top_field = 0; 606 } 607 608 if (vbi_buf != NULL) { 609 if (fbyte & 0x40) 610 vbi_buf->top_field = 1; 611 else 612 vbi_buf->top_field = 0; 613 } 614 615 dev->vbi_read = 0; 616 vbi_dma_q->pos = 0; 617 dma_q->pos = 0; 618 } 619 620 vbi_field_size = dev->vbi_width * dev->vbi_height * 2; 621 if (dev->vbi_read < vbi_field_size) { 622 remain = vbi_field_size - dev->vbi_read; 623 if (len < remain) 624 lencopy = len; 625 else 626 lencopy = remain; 627 628 if (vbi_buf != NULL) 629 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p, 630 vbioutp, len); 631 632 len -= lencopy; 633 p += lencopy; 634 dev->vbi_read += lencopy; 635 } 636 637 if (dev->vbi_read >= vbi_field_size && buf != NULL) 638 au0828_copy_video(dev, dma_q, buf, p, outp, len); 639 } 640 return rc; 641 } 642 643 void au0828_usb_v4l2_media_release(struct au0828_dev *dev) 644 { 645 #ifdef CONFIG_MEDIA_CONTROLLER 646 int i; 647 648 for (i = 0; i < AU0828_MAX_INPUT; i++) { 649 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) 650 return; 651 media_device_unregister_entity(&dev->input_ent[i]); 652 } 653 #endif 654 } 655 656 static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev) 657 { 658 struct au0828_dev *dev = 659 container_of(v4l2_dev, struct au0828_dev, v4l2_dev); 660 661 v4l2_ctrl_handler_free(&dev->v4l2_ctrl_hdl); 662 v4l2_device_unregister(&dev->v4l2_dev); 663 au0828_usb_v4l2_media_release(dev); 664 au0828_usb_release(dev); 665 } 666 667 int au0828_v4l2_device_register(struct usb_interface *interface, 668 struct au0828_dev *dev) 669 { 670 int retval; 671 672 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 673 return 0; 674 675 /* Create the v4l2_device */ 676 #ifdef CONFIG_MEDIA_CONTROLLER 677 dev->v4l2_dev.mdev = dev->media_dev; 678 #endif 679 retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev); 680 if (retval) { 681 pr_err("%s() v4l2_device_register failed\n", 682 __func__); 683 mutex_unlock(&dev->lock); 684 kfree(dev); 685 return retval; 686 } 687 688 dev->v4l2_dev.release = au0828_usb_v4l2_release; 689 690 /* This control handler will inherit the controls from au8522 */ 691 retval = v4l2_ctrl_handler_init(&dev->v4l2_ctrl_hdl, 4); 692 if (retval) { 693 pr_err("%s() v4l2_ctrl_handler_init failed\n", 694 __func__); 695 mutex_unlock(&dev->lock); 696 kfree(dev); 697 return retval; 698 } 699 dev->v4l2_dev.ctrl_handler = &dev->v4l2_ctrl_hdl; 700 701 return 0; 702 } 703 704 static int queue_setup(struct vb2_queue *vq, 705 unsigned int *nbuffers, unsigned int *nplanes, 706 unsigned int sizes[], void *alloc_ctxs[]) 707 { 708 struct au0828_dev *dev = vb2_get_drv_priv(vq); 709 unsigned long size = dev->height * dev->bytesperline; 710 711 if (*nplanes) 712 return sizes[0] < size ? -EINVAL : 0; 713 *nplanes = 1; 714 sizes[0] = size; 715 return 0; 716 } 717 718 static int 719 buffer_prepare(struct vb2_buffer *vb) 720 { 721 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 722 struct au0828_buffer *buf = container_of(vbuf, 723 struct au0828_buffer, vb); 724 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 725 726 buf->length = dev->height * dev->bytesperline; 727 728 if (vb2_plane_size(vb, 0) < buf->length) { 729 pr_err("%s data will not fit into plane (%lu < %lu)\n", 730 __func__, vb2_plane_size(vb, 0), buf->length); 731 return -EINVAL; 732 } 733 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length); 734 return 0; 735 } 736 737 static void 738 buffer_queue(struct vb2_buffer *vb) 739 { 740 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 741 struct au0828_buffer *buf = container_of(vbuf, 742 struct au0828_buffer, 743 vb); 744 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 745 struct au0828_dmaqueue *vidq = &dev->vidq; 746 unsigned long flags = 0; 747 748 buf->mem = vb2_plane_vaddr(vb, 0); 749 buf->length = vb2_plane_size(vb, 0); 750 751 spin_lock_irqsave(&dev->slock, flags); 752 list_add_tail(&buf->list, &vidq->active); 753 spin_unlock_irqrestore(&dev->slock, flags); 754 } 755 756 static int au0828_i2s_init(struct au0828_dev *dev) 757 { 758 /* Enable i2s mode */ 759 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01); 760 return 0; 761 } 762 763 /* 764 * Auvitek au0828 analog stream enable 765 */ 766 static int au0828_analog_stream_enable(struct au0828_dev *d) 767 { 768 struct usb_interface *iface; 769 int ret, h, w; 770 771 dprintk(1, "au0828_analog_stream_enable called\n"); 772 773 iface = usb_ifnum_to_if(d->usbdev, 0); 774 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) { 775 dprintk(1, "Changing intf#0 to alt 5\n"); 776 /* set au0828 interface0 to AS5 here again */ 777 ret = usb_set_interface(d->usbdev, 0, 5); 778 if (ret < 0) { 779 pr_info("Au0828 can't set alt setting to 5!\n"); 780 return -EBUSY; 781 } 782 } 783 784 h = d->height / 2 + 2; 785 w = d->width * 2; 786 787 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00); 788 au0828_writereg(d, 0x106, 0x00); 789 /* set x position */ 790 au0828_writereg(d, 0x110, 0x00); 791 au0828_writereg(d, 0x111, 0x00); 792 au0828_writereg(d, 0x114, w & 0xff); 793 au0828_writereg(d, 0x115, w >> 8); 794 /* set y position */ 795 au0828_writereg(d, 0x112, 0x00); 796 au0828_writereg(d, 0x113, 0x00); 797 au0828_writereg(d, 0x116, h & 0xff); 798 au0828_writereg(d, 0x117, h >> 8); 799 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3); 800 801 return 0; 802 } 803 804 static int au0828_analog_stream_disable(struct au0828_dev *d) 805 { 806 dprintk(1, "au0828_analog_stream_disable called\n"); 807 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0); 808 return 0; 809 } 810 811 static void au0828_analog_stream_reset(struct au0828_dev *dev) 812 { 813 dprintk(1, "au0828_analog_stream_reset called\n"); 814 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0); 815 mdelay(30); 816 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3); 817 } 818 819 /* 820 * Some operations needs to stop current streaming 821 */ 822 static int au0828_stream_interrupt(struct au0828_dev *dev) 823 { 824 int ret = 0; 825 826 dev->stream_state = STREAM_INTERRUPT; 827 if (dev->dev_state == DEV_DISCONNECTED) 828 return -ENODEV; 829 else if (ret) { 830 dev->dev_state = DEV_MISCONFIGURED; 831 dprintk(1, "%s device is misconfigured!\n", __func__); 832 return ret; 833 } 834 return 0; 835 } 836 837 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count) 838 { 839 struct au0828_dev *dev = vb2_get_drv_priv(vq); 840 int rc = 0; 841 842 dprintk(1, "au0828_start_analog_streaming called %d\n", 843 dev->streaming_users); 844 845 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 846 dev->frame_count = 0; 847 else 848 dev->vbi_frame_count = 0; 849 850 if (dev->streaming_users == 0) { 851 /* If we were doing ac97 instead of i2s, it would go here...*/ 852 au0828_i2s_init(dev); 853 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB, 854 AU0828_MAX_ISO_BUFS, dev->max_pkt_size, 855 au0828_isoc_copy); 856 if (rc < 0) { 857 pr_info("au0828_init_isoc failed\n"); 858 return rc; 859 } 860 861 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 862 v4l2_device_call_all(&dev->v4l2_dev, 0, video, 863 s_stream, 1); 864 dev->vid_timeout_running = 1; 865 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 866 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 867 dev->vbi_timeout_running = 1; 868 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 869 } 870 } 871 dev->streaming_users++; 872 return rc; 873 } 874 875 static void au0828_stop_streaming(struct vb2_queue *vq) 876 { 877 struct au0828_dev *dev = vb2_get_drv_priv(vq); 878 struct au0828_dmaqueue *vidq = &dev->vidq; 879 unsigned long flags = 0; 880 881 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users); 882 883 if (dev->streaming_users-- == 1) 884 au0828_uninit_isoc(dev); 885 886 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 887 dev->vid_timeout_running = 0; 888 del_timer_sync(&dev->vid_timeout); 889 890 spin_lock_irqsave(&dev->slock, flags); 891 if (dev->isoc_ctl.buf != NULL) { 892 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf, 893 VB2_BUF_STATE_ERROR); 894 dev->isoc_ctl.buf = NULL; 895 } 896 while (!list_empty(&vidq->active)) { 897 struct au0828_buffer *buf; 898 899 buf = list_entry(vidq->active.next, struct au0828_buffer, list); 900 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 901 list_del(&buf->list); 902 } 903 spin_unlock_irqrestore(&dev->slock, flags); 904 } 905 906 void au0828_stop_vbi_streaming(struct vb2_queue *vq) 907 { 908 struct au0828_dev *dev = vb2_get_drv_priv(vq); 909 struct au0828_dmaqueue *vbiq = &dev->vbiq; 910 unsigned long flags = 0; 911 912 dprintk(1, "au0828_stop_vbi_streaming called %d\n", 913 dev->streaming_users); 914 915 if (dev->streaming_users-- == 1) 916 au0828_uninit_isoc(dev); 917 918 spin_lock_irqsave(&dev->slock, flags); 919 if (dev->isoc_ctl.vbi_buf != NULL) { 920 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf, 921 VB2_BUF_STATE_ERROR); 922 dev->isoc_ctl.vbi_buf = NULL; 923 } 924 while (!list_empty(&vbiq->active)) { 925 struct au0828_buffer *buf; 926 927 buf = list_entry(vbiq->active.next, struct au0828_buffer, list); 928 list_del(&buf->list); 929 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 930 } 931 spin_unlock_irqrestore(&dev->slock, flags); 932 933 dev->vbi_timeout_running = 0; 934 del_timer_sync(&dev->vbi_timeout); 935 } 936 937 static struct vb2_ops au0828_video_qops = { 938 .queue_setup = queue_setup, 939 .buf_prepare = buffer_prepare, 940 .buf_queue = buffer_queue, 941 .start_streaming = au0828_start_analog_streaming, 942 .stop_streaming = au0828_stop_streaming, 943 .wait_prepare = vb2_ops_wait_prepare, 944 .wait_finish = vb2_ops_wait_finish, 945 }; 946 947 /* ------------------------------------------------------------------ 948 V4L2 interface 949 ------------------------------------------------------------------*/ 950 /* 951 * au0828_analog_unregister 952 * unregister v4l2 devices 953 */ 954 int au0828_analog_unregister(struct au0828_dev *dev) 955 { 956 dprintk(1, "au0828_analog_unregister called\n"); 957 958 /* No analog TV */ 959 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 960 return 0; 961 962 mutex_lock(&au0828_sysfs_lock); 963 video_unregister_device(&dev->vdev); 964 video_unregister_device(&dev->vbi_dev); 965 mutex_unlock(&au0828_sysfs_lock); 966 967 v4l2_device_disconnect(&dev->v4l2_dev); 968 v4l2_device_put(&dev->v4l2_dev); 969 970 return 1; 971 } 972 973 /* This function ensures that video frames continue to be delivered even if 974 the ITU-656 input isn't receiving any data (thereby preventing applications 975 such as tvtime from hanging) */ 976 static void au0828_vid_buffer_timeout(unsigned long data) 977 { 978 struct au0828_dev *dev = (struct au0828_dev *) data; 979 struct au0828_dmaqueue *dma_q = &dev->vidq; 980 struct au0828_buffer *buf; 981 unsigned char *vid_data; 982 unsigned long flags = 0; 983 984 spin_lock_irqsave(&dev->slock, flags); 985 986 buf = dev->isoc_ctl.buf; 987 if (buf != NULL) { 988 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 989 memset(vid_data, 0x00, buf->length); /* Blank green frame */ 990 buffer_filled(dev, dma_q, buf); 991 } 992 get_next_buf(dma_q, &buf); 993 994 if (dev->vid_timeout_running == 1) 995 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 996 997 spin_unlock_irqrestore(&dev->slock, flags); 998 } 999 1000 static void au0828_vbi_buffer_timeout(unsigned long data) 1001 { 1002 struct au0828_dev *dev = (struct au0828_dev *) data; 1003 struct au0828_dmaqueue *dma_q = &dev->vbiq; 1004 struct au0828_buffer *buf; 1005 unsigned char *vbi_data; 1006 unsigned long flags = 0; 1007 1008 spin_lock_irqsave(&dev->slock, flags); 1009 1010 buf = dev->isoc_ctl.vbi_buf; 1011 if (buf != NULL) { 1012 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 1013 memset(vbi_data, 0x00, buf->length); 1014 buffer_filled(dev, dma_q, buf); 1015 } 1016 vbi_get_next_buf(dma_q, &buf); 1017 1018 if (dev->vbi_timeout_running == 1) 1019 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1020 spin_unlock_irqrestore(&dev->slock, flags); 1021 } 1022 1023 static int au0828_v4l2_open(struct file *filp) 1024 { 1025 struct au0828_dev *dev = video_drvdata(filp); 1026 int ret; 1027 1028 dprintk(1, 1029 "%s called std_set %d dev_state %d stream users %d users %d\n", 1030 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1031 dev->streaming_users, dev->users); 1032 1033 if (mutex_lock_interruptible(&dev->lock)) 1034 return -ERESTARTSYS; 1035 1036 ret = v4l2_fh_open(filp); 1037 if (ret) { 1038 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n", 1039 __func__, ret); 1040 mutex_unlock(&dev->lock); 1041 return ret; 1042 } 1043 1044 if (dev->users == 0) { 1045 au0828_analog_stream_enable(dev); 1046 au0828_analog_stream_reset(dev); 1047 dev->stream_state = STREAM_OFF; 1048 dev->dev_state |= DEV_INITIALIZED; 1049 } 1050 dev->users++; 1051 mutex_unlock(&dev->lock); 1052 return ret; 1053 } 1054 1055 static int au0828_v4l2_close(struct file *filp) 1056 { 1057 int ret; 1058 struct au0828_dev *dev = video_drvdata(filp); 1059 struct video_device *vdev = video_devdata(filp); 1060 1061 dprintk(1, 1062 "%s called std_set %d dev_state %d stream users %d users %d\n", 1063 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1064 dev->streaming_users, dev->users); 1065 1066 mutex_lock(&dev->lock); 1067 if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) { 1068 /* Cancel timeout thread in case they didn't call streamoff */ 1069 dev->vid_timeout_running = 0; 1070 del_timer_sync(&dev->vid_timeout); 1071 } else if (vdev->vfl_type == VFL_TYPE_VBI && 1072 dev->vbi_timeout_running) { 1073 /* Cancel timeout thread in case they didn't call streamoff */ 1074 dev->vbi_timeout_running = 0; 1075 del_timer_sync(&dev->vbi_timeout); 1076 } 1077 1078 if (dev->dev_state == DEV_DISCONNECTED) 1079 goto end; 1080 1081 if (dev->users == 1) { 1082 /* 1083 * Avoid putting tuner in sleep if DVB or ALSA are 1084 * streaming. 1085 * 1086 * On most USB devices like au0828 the tuner can 1087 * be safely put in sleep stare here if ALSA isn't 1088 * streaming. Exceptions are some very old USB tuner 1089 * models such as em28xx-based WinTV USB2 which have 1090 * a separate audio output jack. The devices that have 1091 * a separate audio output jack have analog tuners, 1092 * like Philips FM1236. Those devices are always on, 1093 * so the s_power callback are silently ignored. 1094 * So, the current logic here does the following: 1095 * Disable (put tuner to sleep) when 1096 * - ALSA and DVB aren't not streaming; 1097 * - the last V4L2 file handler is closed. 1098 * 1099 * FIXME: 1100 * 1101 * Additionally, this logic could be improved to 1102 * disable the media source if the above conditions 1103 * are met and if the device: 1104 * - doesn't have a separate audio out plug (or 1105 * - doesn't use a silicon tuner like xc2028/3028/4000/5000). 1106 * 1107 * Once this additional logic is in place, a callback 1108 * is needed to enable the media source and power on 1109 * the tuner, for radio to work. 1110 */ 1111 ret = v4l_enable_media_source(vdev); 1112 if (ret == 0) 1113 v4l2_device_call_all(&dev->v4l2_dev, 0, core, 1114 s_power, 0); 1115 dev->std_set_in_tuner_core = 0; 1116 1117 /* When close the device, set the usb intf0 into alt0 to free 1118 USB bandwidth */ 1119 ret = usb_set_interface(dev->usbdev, 0, 0); 1120 if (ret < 0) 1121 pr_info("Au0828 can't set alternate to 0!\n"); 1122 } 1123 end: 1124 _vb2_fop_release(filp, NULL); 1125 dev->users--; 1126 mutex_unlock(&dev->lock); 1127 return 0; 1128 } 1129 1130 /* Must be called with dev->lock held */ 1131 static void au0828_init_tuner(struct au0828_dev *dev) 1132 { 1133 struct v4l2_frequency f = { 1134 .frequency = dev->ctrl_freq, 1135 .type = V4L2_TUNER_ANALOG_TV, 1136 }; 1137 1138 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1139 dev->std_set_in_tuner_core, dev->dev_state); 1140 1141 if (dev->std_set_in_tuner_core) 1142 return; 1143 dev->std_set_in_tuner_core = 1; 1144 i2c_gate_ctrl(dev, 1); 1145 /* If we've never sent the standard in tuner core, do so now. 1146 We don't do this at device probe because we don't want to 1147 incur the cost of a firmware load */ 1148 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std); 1149 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 1150 i2c_gate_ctrl(dev, 0); 1151 } 1152 1153 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd, 1154 struct v4l2_format *format) 1155 { 1156 int ret; 1157 int width = format->fmt.pix.width; 1158 int height = format->fmt.pix.height; 1159 1160 /* If they are demanding a format other than the one we support, 1161 bail out (tvtime asks for UYVY and then retries with YUYV) */ 1162 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY) 1163 return -EINVAL; 1164 1165 /* format->fmt.pix.width only support 720 and height 480 */ 1166 if (width != 720) 1167 width = 720; 1168 if (height != 480) 1169 height = 480; 1170 1171 format->fmt.pix.width = width; 1172 format->fmt.pix.height = height; 1173 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1174 format->fmt.pix.bytesperline = width * 2; 1175 format->fmt.pix.sizeimage = width * height * 2; 1176 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1177 format->fmt.pix.field = V4L2_FIELD_INTERLACED; 1178 format->fmt.pix.priv = 0; 1179 1180 if (cmd == VIDIOC_TRY_FMT) 1181 return 0; 1182 1183 /* maybe set new image format, driver current only support 720*480 */ 1184 dev->width = width; 1185 dev->height = height; 1186 dev->frame_size = width * height * 2; 1187 dev->field_size = width * height; 1188 dev->bytesperline = width * 2; 1189 1190 if (dev->stream_state == STREAM_ON) { 1191 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n"); 1192 ret = au0828_stream_interrupt(dev); 1193 if (ret != 0) { 1194 dprintk(1, "error interrupting video stream!\n"); 1195 return ret; 1196 } 1197 } 1198 1199 au0828_analog_stream_enable(dev); 1200 1201 return 0; 1202 } 1203 1204 static int vidioc_querycap(struct file *file, void *priv, 1205 struct v4l2_capability *cap) 1206 { 1207 struct video_device *vdev = video_devdata(file); 1208 struct au0828_dev *dev = video_drvdata(file); 1209 1210 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1211 dev->std_set_in_tuner_core, dev->dev_state); 1212 1213 strlcpy(cap->driver, "au0828", sizeof(cap->driver)); 1214 strlcpy(cap->card, dev->board.name, sizeof(cap->card)); 1215 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info)); 1216 1217 /* set the device capabilities */ 1218 cap->device_caps = V4L2_CAP_AUDIO | 1219 V4L2_CAP_READWRITE | 1220 V4L2_CAP_STREAMING | 1221 V4L2_CAP_TUNER; 1222 if (vdev->vfl_type == VFL_TYPE_GRABBER) 1223 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE; 1224 else 1225 cap->device_caps |= V4L2_CAP_VBI_CAPTURE; 1226 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS | 1227 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE; 1228 return 0; 1229 } 1230 1231 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1232 struct v4l2_fmtdesc *f) 1233 { 1234 if (f->index) 1235 return -EINVAL; 1236 1237 dprintk(1, "%s called\n", __func__); 1238 1239 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1240 strcpy(f->description, "Packed YUV2"); 1241 1242 f->flags = 0; 1243 f->pixelformat = V4L2_PIX_FMT_UYVY; 1244 1245 return 0; 1246 } 1247 1248 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 1249 struct v4l2_format *f) 1250 { 1251 struct au0828_dev *dev = video_drvdata(file); 1252 1253 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1254 dev->std_set_in_tuner_core, dev->dev_state); 1255 1256 f->fmt.pix.width = dev->width; 1257 f->fmt.pix.height = dev->height; 1258 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1259 f->fmt.pix.bytesperline = dev->bytesperline; 1260 f->fmt.pix.sizeimage = dev->frame_size; 1261 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */ 1262 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 1263 f->fmt.pix.priv = 0; 1264 return 0; 1265 } 1266 1267 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 1268 struct v4l2_format *f) 1269 { 1270 struct au0828_dev *dev = video_drvdata(file); 1271 1272 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1273 dev->std_set_in_tuner_core, dev->dev_state); 1274 1275 return au0828_set_format(dev, VIDIOC_TRY_FMT, f); 1276 } 1277 1278 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1279 struct v4l2_format *f) 1280 { 1281 struct au0828_dev *dev = video_drvdata(file); 1282 int rc; 1283 1284 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1285 dev->std_set_in_tuner_core, dev->dev_state); 1286 1287 rc = check_dev(dev); 1288 if (rc < 0) 1289 return rc; 1290 1291 if (vb2_is_busy(&dev->vb_vidq)) { 1292 pr_info("%s queue busy\n", __func__); 1293 rc = -EBUSY; 1294 goto out; 1295 } 1296 1297 rc = au0828_set_format(dev, VIDIOC_S_FMT, f); 1298 out: 1299 return rc; 1300 } 1301 1302 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) 1303 { 1304 struct au0828_dev *dev = video_drvdata(file); 1305 1306 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1307 dev->std_set_in_tuner_core, dev->dev_state); 1308 1309 if (norm == dev->std) 1310 return 0; 1311 1312 if (dev->streaming_users > 0) 1313 return -EBUSY; 1314 1315 dev->std = norm; 1316 1317 au0828_init_tuner(dev); 1318 1319 i2c_gate_ctrl(dev, 1); 1320 1321 /* 1322 * FIXME: when we support something other than 60Hz standards, 1323 * we are going to have to make the au0828 bridge adjust the size 1324 * of its capture buffer, which is currently hardcoded at 720x480 1325 */ 1326 1327 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm); 1328 1329 i2c_gate_ctrl(dev, 0); 1330 1331 return 0; 1332 } 1333 1334 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) 1335 { 1336 struct au0828_dev *dev = video_drvdata(file); 1337 1338 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1339 dev->std_set_in_tuner_core, dev->dev_state); 1340 1341 *norm = dev->std; 1342 return 0; 1343 } 1344 1345 static int vidioc_enum_input(struct file *file, void *priv, 1346 struct v4l2_input *input) 1347 { 1348 struct au0828_dev *dev = video_drvdata(file); 1349 unsigned int tmp; 1350 1351 static const char *inames[] = { 1352 [AU0828_VMUX_UNDEFINED] = "Undefined", 1353 [AU0828_VMUX_COMPOSITE] = "Composite", 1354 [AU0828_VMUX_SVIDEO] = "S-Video", 1355 [AU0828_VMUX_CABLE] = "Cable TV", 1356 [AU0828_VMUX_TELEVISION] = "Television", 1357 [AU0828_VMUX_DVB] = "DVB", 1358 }; 1359 1360 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1361 dev->std_set_in_tuner_core, dev->dev_state); 1362 1363 tmp = input->index; 1364 1365 if (tmp >= AU0828_MAX_INPUT) 1366 return -EINVAL; 1367 if (AUVI_INPUT(tmp).type == 0) 1368 return -EINVAL; 1369 1370 input->index = tmp; 1371 strcpy(input->name, inames[AUVI_INPUT(tmp).type]); 1372 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) || 1373 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) { 1374 input->type |= V4L2_INPUT_TYPE_TUNER; 1375 input->audioset = 1; 1376 } else { 1377 input->type |= V4L2_INPUT_TYPE_CAMERA; 1378 input->audioset = 2; 1379 } 1380 1381 input->std = dev->vdev.tvnorms; 1382 1383 return 0; 1384 } 1385 1386 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1387 { 1388 struct au0828_dev *dev = video_drvdata(file); 1389 1390 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1391 dev->std_set_in_tuner_core, dev->dev_state); 1392 1393 *i = dev->ctrl_input; 1394 return 0; 1395 } 1396 1397 static void au0828_s_input(struct au0828_dev *dev, int index) 1398 { 1399 int i; 1400 1401 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1402 dev->std_set_in_tuner_core, dev->dev_state); 1403 1404 switch (AUVI_INPUT(index).type) { 1405 case AU0828_VMUX_SVIDEO: 1406 dev->input_type = AU0828_VMUX_SVIDEO; 1407 dev->ctrl_ainput = 1; 1408 break; 1409 case AU0828_VMUX_COMPOSITE: 1410 dev->input_type = AU0828_VMUX_COMPOSITE; 1411 dev->ctrl_ainput = 1; 1412 break; 1413 case AU0828_VMUX_TELEVISION: 1414 dev->input_type = AU0828_VMUX_TELEVISION; 1415 dev->ctrl_ainput = 0; 1416 break; 1417 default: 1418 dprintk(1, "unknown input type set [%d]\n", 1419 AUVI_INPUT(index).type); 1420 return; 1421 } 1422 1423 dev->ctrl_input = index; 1424 1425 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 1426 AUVI_INPUT(index).vmux, 0, 0); 1427 1428 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1429 int enable = 0; 1430 if (AUVI_INPUT(i).audio_setup == NULL) 1431 continue; 1432 1433 if (i == index) 1434 enable = 1; 1435 else 1436 enable = 0; 1437 if (enable) { 1438 (AUVI_INPUT(i).audio_setup)(dev, enable); 1439 } else { 1440 /* Make sure we leave it turned on if some 1441 other input is routed to this callback */ 1442 if ((AUVI_INPUT(i).audio_setup) != 1443 ((AUVI_INPUT(index).audio_setup))) { 1444 (AUVI_INPUT(i).audio_setup)(dev, enable); 1445 } 1446 } 1447 } 1448 1449 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 1450 AUVI_INPUT(index).amux, 0, 0); 1451 } 1452 1453 static int vidioc_s_input(struct file *file, void *priv, unsigned int index) 1454 { 1455 struct au0828_dev *dev = video_drvdata(file); 1456 struct video_device *vfd = video_devdata(file); 1457 1458 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__, 1459 index); 1460 if (index >= AU0828_MAX_INPUT) 1461 return -EINVAL; 1462 if (AUVI_INPUT(index).type == 0) 1463 return -EINVAL; 1464 1465 if (dev->ctrl_input == index) 1466 return 0; 1467 1468 au0828_s_input(dev, index); 1469 1470 /* 1471 * Input has been changed. Disable the media source 1472 * associated with the old input and enable source 1473 * for the newly set input 1474 */ 1475 v4l_disable_media_source(vfd); 1476 return v4l_enable_media_source(vfd); 1477 } 1478 1479 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a) 1480 { 1481 if (a->index > 1) 1482 return -EINVAL; 1483 1484 dprintk(1, "%s called\n", __func__); 1485 1486 if (a->index == 0) 1487 strcpy(a->name, "Television"); 1488 else 1489 strcpy(a->name, "Line in"); 1490 1491 a->capability = V4L2_AUDCAP_STEREO; 1492 return 0; 1493 } 1494 1495 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 1496 { 1497 struct au0828_dev *dev = video_drvdata(file); 1498 1499 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1500 dev->std_set_in_tuner_core, dev->dev_state); 1501 1502 a->index = dev->ctrl_ainput; 1503 if (a->index == 0) 1504 strcpy(a->name, "Television"); 1505 else 1506 strcpy(a->name, "Line in"); 1507 1508 a->capability = V4L2_AUDCAP_STEREO; 1509 return 0; 1510 } 1511 1512 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 1513 { 1514 struct au0828_dev *dev = video_drvdata(file); 1515 1516 if (a->index != dev->ctrl_ainput) 1517 return -EINVAL; 1518 1519 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1520 dev->std_set_in_tuner_core, dev->dev_state); 1521 return 0; 1522 } 1523 1524 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1525 { 1526 struct au0828_dev *dev = video_drvdata(file); 1527 struct video_device *vfd = video_devdata(file); 1528 int ret; 1529 1530 if (t->index != 0) 1531 return -EINVAL; 1532 1533 ret = v4l_enable_media_source(vfd); 1534 if (ret) 1535 return ret; 1536 1537 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1538 dev->std_set_in_tuner_core, dev->dev_state); 1539 1540 strcpy(t->name, "Auvitek tuner"); 1541 1542 au0828_init_tuner(dev); 1543 i2c_gate_ctrl(dev, 1); 1544 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 1545 i2c_gate_ctrl(dev, 0); 1546 return 0; 1547 } 1548 1549 static int vidioc_s_tuner(struct file *file, void *priv, 1550 const struct v4l2_tuner *t) 1551 { 1552 struct au0828_dev *dev = video_drvdata(file); 1553 1554 if (t->index != 0) 1555 return -EINVAL; 1556 1557 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1558 dev->std_set_in_tuner_core, dev->dev_state); 1559 1560 au0828_init_tuner(dev); 1561 i2c_gate_ctrl(dev, 1); 1562 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 1563 i2c_gate_ctrl(dev, 0); 1564 1565 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal, 1566 t->afc); 1567 1568 return 0; 1569 1570 } 1571 1572 static int vidioc_g_frequency(struct file *file, void *priv, 1573 struct v4l2_frequency *freq) 1574 { 1575 struct au0828_dev *dev = video_drvdata(file); 1576 1577 if (freq->tuner != 0) 1578 return -EINVAL; 1579 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1580 dev->std_set_in_tuner_core, dev->dev_state); 1581 freq->frequency = dev->ctrl_freq; 1582 return 0; 1583 } 1584 1585 static int vidioc_s_frequency(struct file *file, void *priv, 1586 const struct v4l2_frequency *freq) 1587 { 1588 struct au0828_dev *dev = video_drvdata(file); 1589 struct v4l2_frequency new_freq = *freq; 1590 1591 if (freq->tuner != 0) 1592 return -EINVAL; 1593 1594 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1595 dev->std_set_in_tuner_core, dev->dev_state); 1596 1597 au0828_init_tuner(dev); 1598 i2c_gate_ctrl(dev, 1); 1599 1600 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq); 1601 /* Get the actual set (and possibly clamped) frequency */ 1602 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq); 1603 dev->ctrl_freq = new_freq.frequency; 1604 1605 i2c_gate_ctrl(dev, 0); 1606 1607 au0828_analog_stream_reset(dev); 1608 1609 return 0; 1610 } 1611 1612 1613 /* RAW VBI ioctls */ 1614 1615 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 1616 struct v4l2_format *format) 1617 { 1618 struct au0828_dev *dev = video_drvdata(file); 1619 1620 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1621 dev->std_set_in_tuner_core, dev->dev_state); 1622 1623 format->fmt.vbi.samples_per_line = dev->vbi_width; 1624 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1625 format->fmt.vbi.offset = 0; 1626 format->fmt.vbi.flags = 0; 1627 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 1628 1629 format->fmt.vbi.count[0] = dev->vbi_height; 1630 format->fmt.vbi.count[1] = dev->vbi_height; 1631 format->fmt.vbi.start[0] = 21; 1632 format->fmt.vbi.start[1] = 284; 1633 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved)); 1634 1635 return 0; 1636 } 1637 1638 static int vidioc_cropcap(struct file *file, void *priv, 1639 struct v4l2_cropcap *cc) 1640 { 1641 struct au0828_dev *dev = video_drvdata(file); 1642 1643 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1644 return -EINVAL; 1645 1646 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1647 dev->std_set_in_tuner_core, dev->dev_state); 1648 1649 cc->bounds.left = 0; 1650 cc->bounds.top = 0; 1651 cc->bounds.width = dev->width; 1652 cc->bounds.height = dev->height; 1653 1654 cc->defrect = cc->bounds; 1655 1656 cc->pixelaspect.numerator = 54; 1657 cc->pixelaspect.denominator = 59; 1658 1659 return 0; 1660 } 1661 1662 #ifdef CONFIG_VIDEO_ADV_DEBUG 1663 static int vidioc_g_register(struct file *file, void *priv, 1664 struct v4l2_dbg_register *reg) 1665 { 1666 struct au0828_dev *dev = video_drvdata(file); 1667 1668 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1669 dev->std_set_in_tuner_core, dev->dev_state); 1670 1671 reg->val = au0828_read(dev, reg->reg); 1672 reg->size = 1; 1673 return 0; 1674 } 1675 1676 static int vidioc_s_register(struct file *file, void *priv, 1677 const struct v4l2_dbg_register *reg) 1678 { 1679 struct au0828_dev *dev = video_drvdata(file); 1680 1681 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1682 dev->std_set_in_tuner_core, dev->dev_state); 1683 1684 return au0828_writereg(dev, reg->reg, reg->val); 1685 } 1686 #endif 1687 1688 static int vidioc_log_status(struct file *file, void *fh) 1689 { 1690 struct video_device *vdev = video_devdata(file); 1691 1692 dprintk(1, "%s called\n", __func__); 1693 1694 v4l2_ctrl_log_status(file, fh); 1695 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status); 1696 return 0; 1697 } 1698 1699 void au0828_v4l2_suspend(struct au0828_dev *dev) 1700 { 1701 struct urb *urb; 1702 int i; 1703 1704 pr_info("stopping V4L2\n"); 1705 1706 if (dev->stream_state == STREAM_ON) { 1707 pr_info("stopping V4L2 active URBs\n"); 1708 au0828_analog_stream_disable(dev); 1709 /* stop urbs */ 1710 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1711 urb = dev->isoc_ctl.urb[i]; 1712 if (urb) { 1713 if (!irqs_disabled()) 1714 usb_kill_urb(urb); 1715 else 1716 usb_unlink_urb(urb); 1717 } 1718 } 1719 } 1720 1721 if (dev->vid_timeout_running) 1722 del_timer_sync(&dev->vid_timeout); 1723 if (dev->vbi_timeout_running) 1724 del_timer_sync(&dev->vbi_timeout); 1725 } 1726 1727 void au0828_v4l2_resume(struct au0828_dev *dev) 1728 { 1729 int i, rc; 1730 1731 pr_info("restarting V4L2\n"); 1732 1733 if (dev->stream_state == STREAM_ON) { 1734 au0828_stream_interrupt(dev); 1735 au0828_init_tuner(dev); 1736 } 1737 1738 if (dev->vid_timeout_running) 1739 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 1740 if (dev->vbi_timeout_running) 1741 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1742 1743 /* If we were doing ac97 instead of i2s, it would go here...*/ 1744 au0828_i2s_init(dev); 1745 1746 au0828_analog_stream_enable(dev); 1747 1748 if (!(dev->stream_state == STREAM_ON)) { 1749 au0828_analog_stream_reset(dev); 1750 /* submit urbs */ 1751 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1752 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 1753 if (rc) { 1754 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 1755 i, rc); 1756 au0828_uninit_isoc(dev); 1757 } 1758 } 1759 } 1760 } 1761 1762 static struct v4l2_file_operations au0828_v4l_fops = { 1763 .owner = THIS_MODULE, 1764 .open = au0828_v4l2_open, 1765 .release = au0828_v4l2_close, 1766 .read = vb2_fop_read, 1767 .poll = vb2_fop_poll, 1768 .mmap = vb2_fop_mmap, 1769 .unlocked_ioctl = video_ioctl2, 1770 }; 1771 1772 static const struct v4l2_ioctl_ops video_ioctl_ops = { 1773 .vidioc_querycap = vidioc_querycap, 1774 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1775 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1776 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1777 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1778 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1779 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1780 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1781 .vidioc_enumaudio = vidioc_enumaudio, 1782 .vidioc_g_audio = vidioc_g_audio, 1783 .vidioc_s_audio = vidioc_s_audio, 1784 .vidioc_cropcap = vidioc_cropcap, 1785 1786 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1787 .vidioc_create_bufs = vb2_ioctl_create_bufs, 1788 .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 1789 .vidioc_querybuf = vb2_ioctl_querybuf, 1790 .vidioc_qbuf = vb2_ioctl_qbuf, 1791 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1792 .vidioc_expbuf = vb2_ioctl_expbuf, 1793 1794 .vidioc_s_std = vidioc_s_std, 1795 .vidioc_g_std = vidioc_g_std, 1796 .vidioc_enum_input = vidioc_enum_input, 1797 .vidioc_g_input = vidioc_g_input, 1798 .vidioc_s_input = vidioc_s_input, 1799 1800 .vidioc_streamon = vb2_ioctl_streamon, 1801 .vidioc_streamoff = vb2_ioctl_streamoff, 1802 1803 .vidioc_g_tuner = vidioc_g_tuner, 1804 .vidioc_s_tuner = vidioc_s_tuner, 1805 .vidioc_g_frequency = vidioc_g_frequency, 1806 .vidioc_s_frequency = vidioc_s_frequency, 1807 #ifdef CONFIG_VIDEO_ADV_DEBUG 1808 .vidioc_g_register = vidioc_g_register, 1809 .vidioc_s_register = vidioc_s_register, 1810 #endif 1811 .vidioc_log_status = vidioc_log_status, 1812 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1813 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1814 }; 1815 1816 static const struct video_device au0828_video_template = { 1817 .fops = &au0828_v4l_fops, 1818 .release = video_device_release_empty, 1819 .ioctl_ops = &video_ioctl_ops, 1820 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M, 1821 }; 1822 1823 static int au0828_vb2_setup(struct au0828_dev *dev) 1824 { 1825 int rc; 1826 struct vb2_queue *q; 1827 1828 /* Setup Videobuf2 for Video capture */ 1829 q = &dev->vb_vidq; 1830 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1831 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1832 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1833 q->drv_priv = dev; 1834 q->buf_struct_size = sizeof(struct au0828_buffer); 1835 q->ops = &au0828_video_qops; 1836 q->mem_ops = &vb2_vmalloc_memops; 1837 1838 rc = vb2_queue_init(q); 1839 if (rc < 0) 1840 return rc; 1841 1842 /* Setup Videobuf2 for VBI capture */ 1843 q = &dev->vb_vbiq; 1844 q->type = V4L2_BUF_TYPE_VBI_CAPTURE; 1845 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1846 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1847 q->drv_priv = dev; 1848 q->buf_struct_size = sizeof(struct au0828_buffer); 1849 q->ops = &au0828_vbi_qops; 1850 q->mem_ops = &vb2_vmalloc_memops; 1851 1852 rc = vb2_queue_init(q); 1853 if (rc < 0) 1854 return rc; 1855 1856 return 0; 1857 } 1858 1859 static void au0828_analog_create_entities(struct au0828_dev *dev) 1860 { 1861 #if defined(CONFIG_MEDIA_CONTROLLER) 1862 static const char * const inames[] = { 1863 [AU0828_VMUX_COMPOSITE] = "Composite", 1864 [AU0828_VMUX_SVIDEO] = "S-Video", 1865 [AU0828_VMUX_CABLE] = "Cable TV", 1866 [AU0828_VMUX_TELEVISION] = "Television", 1867 [AU0828_VMUX_DVB] = "DVB", 1868 }; 1869 int ret, i; 1870 1871 /* Initialize Video and VBI pads */ 1872 dev->video_pad.flags = MEDIA_PAD_FL_SINK; 1873 ret = media_entity_pads_init(&dev->vdev.entity, 1, &dev->video_pad); 1874 if (ret < 0) 1875 pr_err("failed to initialize video media entity!\n"); 1876 1877 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK; 1878 ret = media_entity_pads_init(&dev->vbi_dev.entity, 1, &dev->vbi_pad); 1879 if (ret < 0) 1880 pr_err("failed to initialize vbi media entity!\n"); 1881 1882 /* Create entities for each input connector */ 1883 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1884 struct media_entity *ent = &dev->input_ent[i]; 1885 1886 if (AUVI_INPUT(i).type == AU0828_VMUX_UNDEFINED) 1887 break; 1888 1889 ent->name = inames[AUVI_INPUT(i).type]; 1890 ent->flags = MEDIA_ENT_FL_CONNECTOR; 1891 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE; 1892 1893 switch (AUVI_INPUT(i).type) { 1894 case AU0828_VMUX_COMPOSITE: 1895 ent->function = MEDIA_ENT_F_CONN_COMPOSITE; 1896 break; 1897 case AU0828_VMUX_SVIDEO: 1898 ent->function = MEDIA_ENT_F_CONN_SVIDEO; 1899 break; 1900 case AU0828_VMUX_CABLE: 1901 case AU0828_VMUX_TELEVISION: 1902 case AU0828_VMUX_DVB: 1903 default: /* Just to shut up a warning */ 1904 ent->function = MEDIA_ENT_F_CONN_RF; 1905 break; 1906 } 1907 1908 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]); 1909 if (ret < 0) 1910 pr_err("failed to initialize input pad[%d]!\n", i); 1911 1912 ret = media_device_register_entity(dev->media_dev, ent); 1913 if (ret < 0) 1914 pr_err("failed to register input entity %d!\n", i); 1915 } 1916 #endif 1917 } 1918 1919 /**************************************************************************/ 1920 1921 int au0828_analog_register(struct au0828_dev *dev, 1922 struct usb_interface *interface) 1923 { 1924 int retval = -ENOMEM; 1925 struct usb_host_interface *iface_desc; 1926 struct usb_endpoint_descriptor *endpoint; 1927 int i, ret; 1928 1929 dprintk(1, "au0828_analog_register called for intf#%d!\n", 1930 interface->cur_altsetting->desc.bInterfaceNumber); 1931 1932 /* No analog TV */ 1933 if (AUVI_INPUT(0).type == AU0828_VMUX_UNDEFINED) 1934 return 0; 1935 1936 /* set au0828 usb interface0 to as5 */ 1937 retval = usb_set_interface(dev->usbdev, 1938 interface->cur_altsetting->desc.bInterfaceNumber, 5); 1939 if (retval != 0) { 1940 pr_info("Failure setting usb interface0 to as5\n"); 1941 return retval; 1942 } 1943 1944 /* Figure out which endpoint has the isoc interface */ 1945 iface_desc = interface->cur_altsetting; 1946 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { 1947 endpoint = &iface_desc->endpoint[i].desc; 1948 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1949 == USB_DIR_IN) && 1950 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1951 == USB_ENDPOINT_XFER_ISOC)) { 1952 1953 /* we find our isoc in endpoint */ 1954 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize); 1955 dev->max_pkt_size = (tmp & 0x07ff) * 1956 (((tmp & 0x1800) >> 11) + 1); 1957 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress; 1958 dprintk(1, 1959 "Found isoc endpoint 0x%02x, max size = %d\n", 1960 dev->isoc_in_endpointaddr, dev->max_pkt_size); 1961 } 1962 } 1963 if (!(dev->isoc_in_endpointaddr)) { 1964 pr_info("Could not locate isoc endpoint\n"); 1965 return -ENODEV; 1966 } 1967 1968 init_waitqueue_head(&dev->open); 1969 spin_lock_init(&dev->slock); 1970 1971 /* init video dma queues */ 1972 INIT_LIST_HEAD(&dev->vidq.active); 1973 INIT_LIST_HEAD(&dev->vbiq.active); 1974 1975 setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout, 1976 (unsigned long)dev); 1977 setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 1978 (unsigned long)dev); 1979 1980 dev->width = NTSC_STD_W; 1981 dev->height = NTSC_STD_H; 1982 dev->field_size = dev->width * dev->height; 1983 dev->frame_size = dev->field_size << 1; 1984 dev->bytesperline = dev->width << 1; 1985 dev->vbi_width = 720; 1986 dev->vbi_height = 1; 1987 dev->ctrl_ainput = 0; 1988 dev->ctrl_freq = 960; 1989 dev->std = V4L2_STD_NTSC_M; 1990 /* Default input is TV Tuner */ 1991 au0828_s_input(dev, 0); 1992 1993 mutex_init(&dev->vb_queue_lock); 1994 mutex_init(&dev->vb_vbi_queue_lock); 1995 1996 /* Fill the video capture device struct */ 1997 dev->vdev = au0828_video_template; 1998 dev->vdev.v4l2_dev = &dev->v4l2_dev; 1999 dev->vdev.lock = &dev->lock; 2000 dev->vdev.queue = &dev->vb_vidq; 2001 dev->vdev.queue->lock = &dev->vb_queue_lock; 2002 strcpy(dev->vdev.name, "au0828a video"); 2003 2004 /* Setup the VBI device */ 2005 dev->vbi_dev = au0828_video_template; 2006 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev; 2007 dev->vbi_dev.lock = &dev->lock; 2008 dev->vbi_dev.queue = &dev->vb_vbiq; 2009 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock; 2010 strcpy(dev->vbi_dev.name, "au0828a vbi"); 2011 2012 /* Init entities at the Media Controller */ 2013 au0828_analog_create_entities(dev); 2014 2015 /* initialize videobuf2 stuff */ 2016 retval = au0828_vb2_setup(dev); 2017 if (retval != 0) { 2018 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n", 2019 retval); 2020 return -ENODEV; 2021 } 2022 2023 /* Register the v4l2 device */ 2024 video_set_drvdata(&dev->vdev, dev); 2025 retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1); 2026 if (retval != 0) { 2027 dprintk(1, "unable to register video device (error = %d).\n", 2028 retval); 2029 ret = -ENODEV; 2030 goto err_reg_vdev; 2031 } 2032 2033 /* Register the vbi device */ 2034 video_set_drvdata(&dev->vbi_dev, dev); 2035 retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1); 2036 if (retval != 0) { 2037 dprintk(1, "unable to register vbi device (error = %d).\n", 2038 retval); 2039 ret = -ENODEV; 2040 goto err_reg_vbi_dev; 2041 } 2042 2043 #ifdef CONFIG_MEDIA_CONTROLLER 2044 retval = v4l2_mc_create_media_graph(dev->media_dev); 2045 if (retval) { 2046 pr_err("%s() au0282_dev_register failed to create graph\n", 2047 __func__); 2048 ret = -ENODEV; 2049 goto err_reg_vbi_dev; 2050 } 2051 #endif 2052 2053 dprintk(1, "%s completed!\n", __func__); 2054 2055 return 0; 2056 2057 err_reg_vbi_dev: 2058 video_unregister_device(&dev->vdev); 2059 err_reg_vdev: 2060 vb2_queue_release(&dev->vb_vidq); 2061 vb2_queue_release(&dev->vb_vbiq); 2062 return ret; 2063 } 2064 2065