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 32 #include <linux/module.h> 33 #include <linux/slab.h> 34 #include <linux/init.h> 35 #include <linux/device.h> 36 #include <media/v4l2-common.h> 37 #include <media/v4l2-ioctl.h> 38 #include <media/v4l2-event.h> 39 #include <media/tuner.h> 40 #include "au0828-reg.h" 41 42 static DEFINE_MUTEX(au0828_sysfs_lock); 43 44 /* ------------------------------------------------------------------ 45 Videobuf operations 46 ------------------------------------------------------------------*/ 47 48 static unsigned int isoc_debug; 49 module_param(isoc_debug, int, 0644); 50 MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]"); 51 52 #define au0828_isocdbg(fmt, arg...) \ 53 do {\ 54 if (isoc_debug) { \ 55 pr_info("au0828 %s :"fmt, \ 56 __func__ , ##arg); \ 57 } \ 58 } while (0) 59 60 static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val) 61 { 62 if (dev->dvb.frontend && dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl) 63 dev->dvb.frontend->ops.analog_ops.i2c_gate_ctrl(dev->dvb.frontend, val); 64 } 65 66 static inline void print_err_status(struct au0828_dev *dev, 67 int packet, int status) 68 { 69 char *errmsg = "Unknown"; 70 71 switch (status) { 72 case -ENOENT: 73 errmsg = "unlinked synchronuously"; 74 break; 75 case -ECONNRESET: 76 errmsg = "unlinked asynchronuously"; 77 break; 78 case -ENOSR: 79 errmsg = "Buffer error (overrun)"; 80 break; 81 case -EPIPE: 82 errmsg = "Stalled (device not responding)"; 83 break; 84 case -EOVERFLOW: 85 errmsg = "Babble (bad cable?)"; 86 break; 87 case -EPROTO: 88 errmsg = "Bit-stuff error (bad cable?)"; 89 break; 90 case -EILSEQ: 91 errmsg = "CRC/Timeout (could be anything)"; 92 break; 93 case -ETIME: 94 errmsg = "Device does not respond"; 95 break; 96 } 97 if (packet < 0) { 98 au0828_isocdbg("URB status %d [%s].\n", status, errmsg); 99 } else { 100 au0828_isocdbg("URB packet %d, status %d [%s].\n", 101 packet, status, errmsg); 102 } 103 } 104 105 static int check_dev(struct au0828_dev *dev) 106 { 107 if (dev->dev_state & DEV_DISCONNECTED) { 108 pr_info("v4l2 ioctl: device not present\n"); 109 return -ENODEV; 110 } 111 112 if (dev->dev_state & DEV_MISCONFIGURED) { 113 pr_info("v4l2 ioctl: device is misconfigured; " 114 "close and open it again\n"); 115 return -EIO; 116 } 117 return 0; 118 } 119 120 /* 121 * IRQ callback, called by URB callback 122 */ 123 static void au0828_irq_callback(struct urb *urb) 124 { 125 struct au0828_dmaqueue *dma_q = urb->context; 126 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 127 unsigned long flags = 0; 128 int i; 129 130 switch (urb->status) { 131 case 0: /* success */ 132 case -ETIMEDOUT: /* NAK */ 133 break; 134 case -ECONNRESET: /* kill */ 135 case -ENOENT: 136 case -ESHUTDOWN: 137 au0828_isocdbg("au0828_irq_callback called: status kill\n"); 138 return; 139 default: /* unknown error */ 140 au0828_isocdbg("urb completition error %d.\n", urb->status); 141 break; 142 } 143 144 /* Copy data from URB */ 145 spin_lock_irqsave(&dev->slock, flags); 146 dev->isoc_ctl.isoc_copy(dev, urb); 147 spin_unlock_irqrestore(&dev->slock, flags); 148 149 /* Reset urb buffers */ 150 for (i = 0; i < urb->number_of_packets; i++) { 151 urb->iso_frame_desc[i].status = 0; 152 urb->iso_frame_desc[i].actual_length = 0; 153 } 154 urb->status = 0; 155 156 urb->status = usb_submit_urb(urb, GFP_ATOMIC); 157 if (urb->status) { 158 au0828_isocdbg("urb resubmit failed (error=%i)\n", 159 urb->status); 160 } 161 dev->stream_state = STREAM_ON; 162 } 163 164 /* 165 * Stop and Deallocate URBs 166 */ 167 static void au0828_uninit_isoc(struct au0828_dev *dev) 168 { 169 struct urb *urb; 170 int i; 171 172 au0828_isocdbg("au0828: called au0828_uninit_isoc\n"); 173 174 dev->isoc_ctl.nfields = -1; 175 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 176 urb = dev->isoc_ctl.urb[i]; 177 if (urb) { 178 if (!irqs_disabled()) 179 usb_kill_urb(urb); 180 else 181 usb_unlink_urb(urb); 182 183 if (dev->isoc_ctl.transfer_buffer[i]) { 184 usb_free_coherent(dev->usbdev, 185 urb->transfer_buffer_length, 186 dev->isoc_ctl.transfer_buffer[i], 187 urb->transfer_dma); 188 } 189 usb_free_urb(urb); 190 dev->isoc_ctl.urb[i] = NULL; 191 } 192 dev->isoc_ctl.transfer_buffer[i] = NULL; 193 } 194 195 kfree(dev->isoc_ctl.urb); 196 kfree(dev->isoc_ctl.transfer_buffer); 197 198 dev->isoc_ctl.urb = NULL; 199 dev->isoc_ctl.transfer_buffer = NULL; 200 dev->isoc_ctl.num_bufs = 0; 201 202 dev->stream_state = STREAM_OFF; 203 } 204 205 /* 206 * Allocate URBs and start IRQ 207 */ 208 static int au0828_init_isoc(struct au0828_dev *dev, int max_packets, 209 int num_bufs, int max_pkt_size, 210 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb)) 211 { 212 struct au0828_dmaqueue *dma_q = &dev->vidq; 213 int i; 214 int sb_size, pipe; 215 struct urb *urb; 216 int j, k; 217 int rc; 218 219 au0828_isocdbg("au0828: called au0828_prepare_isoc\n"); 220 221 dev->isoc_ctl.isoc_copy = isoc_copy; 222 dev->isoc_ctl.num_bufs = num_bufs; 223 224 dev->isoc_ctl.urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL); 225 if (!dev->isoc_ctl.urb) { 226 au0828_isocdbg("cannot alloc memory for usb buffers\n"); 227 return -ENOMEM; 228 } 229 230 dev->isoc_ctl.transfer_buffer = kzalloc(sizeof(void *)*num_bufs, 231 GFP_KERNEL); 232 if (!dev->isoc_ctl.transfer_buffer) { 233 au0828_isocdbg("cannot allocate memory for usb transfer\n"); 234 kfree(dev->isoc_ctl.urb); 235 return -ENOMEM; 236 } 237 238 dev->isoc_ctl.max_pkt_size = max_pkt_size; 239 dev->isoc_ctl.buf = NULL; 240 241 sb_size = max_packets * dev->isoc_ctl.max_pkt_size; 242 243 /* allocate urbs and transfer buffers */ 244 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 245 urb = usb_alloc_urb(max_packets, GFP_KERNEL); 246 if (!urb) { 247 au0828_isocdbg("cannot alloc isoc_ctl.urb %i\n", i); 248 au0828_uninit_isoc(dev); 249 return -ENOMEM; 250 } 251 dev->isoc_ctl.urb[i] = urb; 252 253 dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev, 254 sb_size, GFP_KERNEL, &urb->transfer_dma); 255 if (!dev->isoc_ctl.transfer_buffer[i]) { 256 printk("unable to allocate %i bytes for transfer" 257 " buffer %i%s\n", 258 sb_size, i, 259 in_interrupt() ? " while in int" : ""); 260 au0828_uninit_isoc(dev); 261 return -ENOMEM; 262 } 263 memset(dev->isoc_ctl.transfer_buffer[i], 0, sb_size); 264 265 pipe = usb_rcvisocpipe(dev->usbdev, 266 dev->isoc_in_endpointaddr), 267 268 usb_fill_int_urb(urb, dev->usbdev, pipe, 269 dev->isoc_ctl.transfer_buffer[i], sb_size, 270 au0828_irq_callback, dma_q, 1); 271 272 urb->number_of_packets = max_packets; 273 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; 274 275 k = 0; 276 for (j = 0; j < max_packets; j++) { 277 urb->iso_frame_desc[j].offset = k; 278 urb->iso_frame_desc[j].length = 279 dev->isoc_ctl.max_pkt_size; 280 k += dev->isoc_ctl.max_pkt_size; 281 } 282 } 283 284 /* submit urbs and enables IRQ */ 285 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 286 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 287 if (rc) { 288 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 289 i, rc); 290 au0828_uninit_isoc(dev); 291 return rc; 292 } 293 } 294 295 return 0; 296 } 297 298 /* 299 * Announces that a buffer were filled and request the next 300 */ 301 static inline void buffer_filled(struct au0828_dev *dev, 302 struct au0828_dmaqueue *dma_q, 303 struct au0828_buffer *buf) 304 { 305 struct vb2_v4l2_buffer *vb = &buf->vb; 306 struct vb2_queue *q = vb->vb2_buf.vb2_queue; 307 308 /* Advice that buffer was filled */ 309 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field); 310 311 if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 312 vb->sequence = dev->frame_count++; 313 else 314 vb->sequence = dev->vbi_frame_count++; 315 316 vb->field = V4L2_FIELD_INTERLACED; 317 v4l2_get_timestamp(&vb->timestamp); 318 vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE); 319 } 320 321 /* 322 * Identify the buffer header type and properly handles 323 */ 324 static void au0828_copy_video(struct au0828_dev *dev, 325 struct au0828_dmaqueue *dma_q, 326 struct au0828_buffer *buf, 327 unsigned char *p, 328 unsigned char *outp, unsigned long len) 329 { 330 void *fieldstart, *startwrite, *startread; 331 int linesdone, currlinedone, offset, lencopy, remain; 332 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */ 333 334 if (len == 0) 335 return; 336 337 if (dma_q->pos + len > buf->length) 338 len = buf->length - dma_q->pos; 339 340 startread = p; 341 remain = len; 342 343 /* Interlaces frame */ 344 if (buf->top_field) 345 fieldstart = outp; 346 else 347 fieldstart = outp + bytesperline; 348 349 linesdone = dma_q->pos / bytesperline; 350 currlinedone = dma_q->pos % bytesperline; 351 offset = linesdone * bytesperline * 2 + currlinedone; 352 startwrite = fieldstart + offset; 353 lencopy = bytesperline - currlinedone; 354 lencopy = lencopy > remain ? remain : lencopy; 355 356 if ((char *)startwrite + lencopy > (char *)outp + buf->length) { 357 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n", 358 ((char *)startwrite + lencopy) - 359 ((char *)outp + buf->length)); 360 remain = (char *)outp + buf->length - (char *)startwrite; 361 lencopy = remain; 362 } 363 if (lencopy <= 0) 364 return; 365 memcpy(startwrite, startread, lencopy); 366 367 remain -= lencopy; 368 369 while (remain > 0) { 370 startwrite += lencopy + bytesperline; 371 startread += lencopy; 372 if (bytesperline > remain) 373 lencopy = remain; 374 else 375 lencopy = bytesperline; 376 377 if ((char *)startwrite + lencopy > (char *)outp + 378 buf->length) { 379 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n", 380 ((char *)startwrite + lencopy) - 381 ((char *)outp + buf->length)); 382 lencopy = remain = (char *)outp + buf->length - 383 (char *)startwrite; 384 } 385 if (lencopy <= 0) 386 break; 387 388 memcpy(startwrite, startread, lencopy); 389 390 remain -= lencopy; 391 } 392 393 if (offset > 1440) { 394 /* We have enough data to check for greenscreen */ 395 if (outp[0] < 0x60 && outp[1440] < 0x60) 396 dev->greenscreen_detected = 1; 397 } 398 399 dma_q->pos += len; 400 } 401 402 /* 403 * video-buf generic routine to get the next available buffer 404 */ 405 static inline void get_next_buf(struct au0828_dmaqueue *dma_q, 406 struct au0828_buffer **buf) 407 { 408 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 409 410 if (list_empty(&dma_q->active)) { 411 au0828_isocdbg("No active queue to serve\n"); 412 dev->isoc_ctl.buf = NULL; 413 *buf = NULL; 414 return; 415 } 416 417 /* Get the next buffer */ 418 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 419 /* Cleans up buffer - Useful for testing for frame/URB loss */ 420 list_del(&(*buf)->list); 421 dma_q->pos = 0; 422 (*buf)->vb_buf = (*buf)->mem; 423 dev->isoc_ctl.buf = *buf; 424 425 return; 426 } 427 428 static void au0828_copy_vbi(struct au0828_dev *dev, 429 struct au0828_dmaqueue *dma_q, 430 struct au0828_buffer *buf, 431 unsigned char *p, 432 unsigned char *outp, unsigned long len) 433 { 434 unsigned char *startwrite, *startread; 435 int bytesperline; 436 int i, j = 0; 437 438 if (dev == NULL) { 439 au0828_isocdbg("dev is null\n"); 440 return; 441 } 442 443 if (dma_q == NULL) { 444 au0828_isocdbg("dma_q is null\n"); 445 return; 446 } 447 if (buf == NULL) 448 return; 449 if (p == NULL) { 450 au0828_isocdbg("p is null\n"); 451 return; 452 } 453 if (outp == NULL) { 454 au0828_isocdbg("outp is null\n"); 455 return; 456 } 457 458 bytesperline = dev->vbi_width; 459 460 if (dma_q->pos + len > buf->length) 461 len = buf->length - dma_q->pos; 462 463 startread = p; 464 startwrite = outp + (dma_q->pos / 2); 465 466 /* Make sure the bottom field populates the second half of the frame */ 467 if (buf->top_field == 0) 468 startwrite += bytesperline * dev->vbi_height; 469 470 for (i = 0; i < len; i += 2) 471 startwrite[j++] = startread[i+1]; 472 473 dma_q->pos += len; 474 } 475 476 477 /* 478 * video-buf generic routine to get the next available VBI buffer 479 */ 480 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q, 481 struct au0828_buffer **buf) 482 { 483 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq); 484 485 if (list_empty(&dma_q->active)) { 486 au0828_isocdbg("No active queue to serve\n"); 487 dev->isoc_ctl.vbi_buf = NULL; 488 *buf = NULL; 489 return; 490 } 491 492 /* Get the next buffer */ 493 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 494 /* Cleans up buffer - Useful for testing for frame/URB loss */ 495 list_del(&(*buf)->list); 496 dma_q->pos = 0; 497 (*buf)->vb_buf = (*buf)->mem; 498 dev->isoc_ctl.vbi_buf = *buf; 499 return; 500 } 501 502 /* 503 * Controls the isoc copy of each urb packet 504 */ 505 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb) 506 { 507 struct au0828_buffer *buf; 508 struct au0828_buffer *vbi_buf; 509 struct au0828_dmaqueue *dma_q = urb->context; 510 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq; 511 unsigned char *outp = NULL; 512 unsigned char *vbioutp = NULL; 513 int i, len = 0, rc = 1; 514 unsigned char *p; 515 unsigned char fbyte; 516 unsigned int vbi_field_size; 517 unsigned int remain, lencopy; 518 519 if (!dev) 520 return 0; 521 522 if ((dev->dev_state & DEV_DISCONNECTED) || 523 (dev->dev_state & DEV_MISCONFIGURED)) 524 return 0; 525 526 if (urb->status < 0) { 527 print_err_status(dev, -1, urb->status); 528 if (urb->status == -ENOENT) 529 return 0; 530 } 531 532 buf = dev->isoc_ctl.buf; 533 if (buf != NULL) 534 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 535 536 vbi_buf = dev->isoc_ctl.vbi_buf; 537 if (vbi_buf != NULL) 538 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0); 539 540 for (i = 0; i < urb->number_of_packets; i++) { 541 int status = urb->iso_frame_desc[i].status; 542 543 if (status < 0) { 544 print_err_status(dev, i, status); 545 if (urb->iso_frame_desc[i].status != -EPROTO) 546 continue; 547 } 548 549 if (urb->iso_frame_desc[i].actual_length <= 0) 550 continue; 551 552 if (urb->iso_frame_desc[i].actual_length > 553 dev->max_pkt_size) { 554 au0828_isocdbg("packet bigger than packet size"); 555 continue; 556 } 557 558 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset; 559 fbyte = p[0]; 560 len = urb->iso_frame_desc[i].actual_length - 4; 561 p += 4; 562 563 if (fbyte & 0x80) { 564 len -= 4; 565 p += 4; 566 au0828_isocdbg("Video frame %s\n", 567 (fbyte & 0x40) ? "odd" : "even"); 568 if (fbyte & 0x40) { 569 /* VBI */ 570 if (vbi_buf != NULL) 571 buffer_filled(dev, vbi_dma_q, vbi_buf); 572 vbi_get_next_buf(vbi_dma_q, &vbi_buf); 573 if (vbi_buf == NULL) 574 vbioutp = NULL; 575 else 576 vbioutp = vb2_plane_vaddr( 577 &vbi_buf->vb.vb2_buf, 0); 578 579 /* Video */ 580 if (buf != NULL) 581 buffer_filled(dev, dma_q, buf); 582 get_next_buf(dma_q, &buf); 583 if (buf == NULL) 584 outp = NULL; 585 else 586 outp = vb2_plane_vaddr( 587 &buf->vb.vb2_buf, 0); 588 589 /* As long as isoc traffic is arriving, keep 590 resetting the timer */ 591 if (dev->vid_timeout_running) 592 mod_timer(&dev->vid_timeout, 593 jiffies + (HZ / 10)); 594 if (dev->vbi_timeout_running) 595 mod_timer(&dev->vbi_timeout, 596 jiffies + (HZ / 10)); 597 } 598 599 if (buf != NULL) { 600 if (fbyte & 0x40) 601 buf->top_field = 1; 602 else 603 buf->top_field = 0; 604 } 605 606 if (vbi_buf != NULL) { 607 if (fbyte & 0x40) 608 vbi_buf->top_field = 1; 609 else 610 vbi_buf->top_field = 0; 611 } 612 613 dev->vbi_read = 0; 614 vbi_dma_q->pos = 0; 615 dma_q->pos = 0; 616 } 617 618 vbi_field_size = dev->vbi_width * dev->vbi_height * 2; 619 if (dev->vbi_read < vbi_field_size) { 620 remain = vbi_field_size - dev->vbi_read; 621 if (len < remain) 622 lencopy = len; 623 else 624 lencopy = remain; 625 626 if (vbi_buf != NULL) 627 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p, 628 vbioutp, len); 629 630 len -= lencopy; 631 p += lencopy; 632 dev->vbi_read += lencopy; 633 } 634 635 if (dev->vbi_read >= vbi_field_size && buf != NULL) 636 au0828_copy_video(dev, dma_q, buf, p, outp, len); 637 } 638 return rc; 639 } 640 641 static int queue_setup(struct vb2_queue *vq, const void *parg, 642 unsigned int *nbuffers, unsigned int *nplanes, 643 unsigned int sizes[], void *alloc_ctxs[]) 644 { 645 const struct v4l2_format *fmt = parg; 646 struct au0828_dev *dev = vb2_get_drv_priv(vq); 647 unsigned long img_size = dev->height * dev->bytesperline; 648 unsigned long size; 649 650 size = fmt ? fmt->fmt.pix.sizeimage : img_size; 651 if (size < img_size) 652 return -EINVAL; 653 654 *nplanes = 1; 655 sizes[0] = size; 656 657 return 0; 658 } 659 660 static int 661 buffer_prepare(struct vb2_buffer *vb) 662 { 663 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 664 struct au0828_buffer *buf = container_of(vbuf, 665 struct au0828_buffer, vb); 666 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 667 668 buf->length = dev->height * dev->bytesperline; 669 670 if (vb2_plane_size(vb, 0) < buf->length) { 671 pr_err("%s data will not fit into plane (%lu < %lu)\n", 672 __func__, vb2_plane_size(vb, 0), buf->length); 673 return -EINVAL; 674 } 675 vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length); 676 return 0; 677 } 678 679 static void 680 buffer_queue(struct vb2_buffer *vb) 681 { 682 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); 683 struct au0828_buffer *buf = container_of(vbuf, 684 struct au0828_buffer, 685 vb); 686 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 687 struct au0828_dmaqueue *vidq = &dev->vidq; 688 unsigned long flags = 0; 689 690 buf->mem = vb2_plane_vaddr(vb, 0); 691 buf->length = vb2_plane_size(vb, 0); 692 693 spin_lock_irqsave(&dev->slock, flags); 694 list_add_tail(&buf->list, &vidq->active); 695 spin_unlock_irqrestore(&dev->slock, flags); 696 } 697 698 static int au0828_i2s_init(struct au0828_dev *dev) 699 { 700 /* Enable i2s mode */ 701 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01); 702 return 0; 703 } 704 705 /* 706 * Auvitek au0828 analog stream enable 707 */ 708 static int au0828_analog_stream_enable(struct au0828_dev *d) 709 { 710 struct usb_interface *iface; 711 int ret, h, w; 712 713 dprintk(1, "au0828_analog_stream_enable called\n"); 714 715 iface = usb_ifnum_to_if(d->usbdev, 0); 716 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) { 717 dprintk(1, "Changing intf#0 to alt 5\n"); 718 /* set au0828 interface0 to AS5 here again */ 719 ret = usb_set_interface(d->usbdev, 0, 5); 720 if (ret < 0) { 721 pr_info("Au0828 can't set alt setting to 5!\n"); 722 return -EBUSY; 723 } 724 } 725 726 h = d->height / 2 + 2; 727 w = d->width * 2; 728 729 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00); 730 au0828_writereg(d, 0x106, 0x00); 731 /* set x position */ 732 au0828_writereg(d, 0x110, 0x00); 733 au0828_writereg(d, 0x111, 0x00); 734 au0828_writereg(d, 0x114, w & 0xff); 735 au0828_writereg(d, 0x115, w >> 8); 736 /* set y position */ 737 au0828_writereg(d, 0x112, 0x00); 738 au0828_writereg(d, 0x113, 0x00); 739 au0828_writereg(d, 0x116, h & 0xff); 740 au0828_writereg(d, 0x117, h >> 8); 741 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3); 742 743 return 0; 744 } 745 746 static int au0828_analog_stream_disable(struct au0828_dev *d) 747 { 748 dprintk(1, "au0828_analog_stream_disable called\n"); 749 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0); 750 return 0; 751 } 752 753 static void au0828_analog_stream_reset(struct au0828_dev *dev) 754 { 755 dprintk(1, "au0828_analog_stream_reset called\n"); 756 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0); 757 mdelay(30); 758 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3); 759 } 760 761 /* 762 * Some operations needs to stop current streaming 763 */ 764 static int au0828_stream_interrupt(struct au0828_dev *dev) 765 { 766 int ret = 0; 767 768 dev->stream_state = STREAM_INTERRUPT; 769 if (dev->dev_state == DEV_DISCONNECTED) 770 return -ENODEV; 771 else if (ret) { 772 dev->dev_state = DEV_MISCONFIGURED; 773 dprintk(1, "%s device is misconfigured!\n", __func__); 774 return ret; 775 } 776 return 0; 777 } 778 779 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count) 780 { 781 struct au0828_dev *dev = vb2_get_drv_priv(vq); 782 int rc = 0; 783 784 dprintk(1, "au0828_start_analog_streaming called %d\n", 785 dev->streaming_users); 786 787 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 788 dev->frame_count = 0; 789 else 790 dev->vbi_frame_count = 0; 791 792 if (dev->streaming_users == 0) { 793 /* If we were doing ac97 instead of i2s, it would go here...*/ 794 au0828_i2s_init(dev); 795 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB, 796 AU0828_MAX_ISO_BUFS, dev->max_pkt_size, 797 au0828_isoc_copy); 798 if (rc < 0) { 799 pr_info("au0828_init_isoc failed\n"); 800 return rc; 801 } 802 803 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 804 v4l2_device_call_all(&dev->v4l2_dev, 0, video, 805 s_stream, 1); 806 dev->vid_timeout_running = 1; 807 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 808 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 809 dev->vbi_timeout_running = 1; 810 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 811 } 812 } 813 dev->streaming_users++; 814 return rc; 815 } 816 817 static void au0828_stop_streaming(struct vb2_queue *vq) 818 { 819 struct au0828_dev *dev = vb2_get_drv_priv(vq); 820 struct au0828_dmaqueue *vidq = &dev->vidq; 821 unsigned long flags = 0; 822 823 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users); 824 825 if (dev->streaming_users-- == 1) 826 au0828_uninit_isoc(dev); 827 828 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 829 dev->vid_timeout_running = 0; 830 del_timer_sync(&dev->vid_timeout); 831 832 spin_lock_irqsave(&dev->slock, flags); 833 if (dev->isoc_ctl.buf != NULL) { 834 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf, 835 VB2_BUF_STATE_ERROR); 836 dev->isoc_ctl.buf = NULL; 837 } 838 while (!list_empty(&vidq->active)) { 839 struct au0828_buffer *buf; 840 841 buf = list_entry(vidq->active.next, struct au0828_buffer, list); 842 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 843 list_del(&buf->list); 844 } 845 spin_unlock_irqrestore(&dev->slock, flags); 846 } 847 848 void au0828_stop_vbi_streaming(struct vb2_queue *vq) 849 { 850 struct au0828_dev *dev = vb2_get_drv_priv(vq); 851 struct au0828_dmaqueue *vbiq = &dev->vbiq; 852 unsigned long flags = 0; 853 854 dprintk(1, "au0828_stop_vbi_streaming called %d\n", 855 dev->streaming_users); 856 857 if (dev->streaming_users-- == 1) 858 au0828_uninit_isoc(dev); 859 860 spin_lock_irqsave(&dev->slock, flags); 861 if (dev->isoc_ctl.vbi_buf != NULL) { 862 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf, 863 VB2_BUF_STATE_ERROR); 864 dev->isoc_ctl.vbi_buf = NULL; 865 } 866 while (!list_empty(&vbiq->active)) { 867 struct au0828_buffer *buf; 868 869 buf = list_entry(vbiq->active.next, struct au0828_buffer, list); 870 list_del(&buf->list); 871 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); 872 } 873 spin_unlock_irqrestore(&dev->slock, flags); 874 875 dev->vbi_timeout_running = 0; 876 del_timer_sync(&dev->vbi_timeout); 877 } 878 879 static struct vb2_ops au0828_video_qops = { 880 .queue_setup = queue_setup, 881 .buf_prepare = buffer_prepare, 882 .buf_queue = buffer_queue, 883 .start_streaming = au0828_start_analog_streaming, 884 .stop_streaming = au0828_stop_streaming, 885 .wait_prepare = vb2_ops_wait_prepare, 886 .wait_finish = vb2_ops_wait_finish, 887 }; 888 889 /* ------------------------------------------------------------------ 890 V4L2 interface 891 ------------------------------------------------------------------*/ 892 /* 893 * au0828_analog_unregister 894 * unregister v4l2 devices 895 */ 896 void au0828_analog_unregister(struct au0828_dev *dev) 897 { 898 dprintk(1, "au0828_analog_unregister called\n"); 899 mutex_lock(&au0828_sysfs_lock); 900 video_unregister_device(&dev->vdev); 901 video_unregister_device(&dev->vbi_dev); 902 mutex_unlock(&au0828_sysfs_lock); 903 } 904 905 /* This function ensures that video frames continue to be delivered even if 906 the ITU-656 input isn't receiving any data (thereby preventing applications 907 such as tvtime from hanging) */ 908 static void au0828_vid_buffer_timeout(unsigned long data) 909 { 910 struct au0828_dev *dev = (struct au0828_dev *) data; 911 struct au0828_dmaqueue *dma_q = &dev->vidq; 912 struct au0828_buffer *buf; 913 unsigned char *vid_data; 914 unsigned long flags = 0; 915 916 spin_lock_irqsave(&dev->slock, flags); 917 918 buf = dev->isoc_ctl.buf; 919 if (buf != NULL) { 920 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 921 memset(vid_data, 0x00, buf->length); /* Blank green frame */ 922 buffer_filled(dev, dma_q, buf); 923 } 924 get_next_buf(dma_q, &buf); 925 926 if (dev->vid_timeout_running == 1) 927 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 928 929 spin_unlock_irqrestore(&dev->slock, flags); 930 } 931 932 static void au0828_vbi_buffer_timeout(unsigned long data) 933 { 934 struct au0828_dev *dev = (struct au0828_dev *) data; 935 struct au0828_dmaqueue *dma_q = &dev->vbiq; 936 struct au0828_buffer *buf; 937 unsigned char *vbi_data; 938 unsigned long flags = 0; 939 940 spin_lock_irqsave(&dev->slock, flags); 941 942 buf = dev->isoc_ctl.vbi_buf; 943 if (buf != NULL) { 944 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); 945 memset(vbi_data, 0x00, buf->length); 946 buffer_filled(dev, dma_q, buf); 947 } 948 vbi_get_next_buf(dma_q, &buf); 949 950 if (dev->vbi_timeout_running == 1) 951 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 952 spin_unlock_irqrestore(&dev->slock, flags); 953 } 954 955 static int au0828_v4l2_open(struct file *filp) 956 { 957 struct au0828_dev *dev = video_drvdata(filp); 958 int ret; 959 960 dprintk(1, 961 "%s called std_set %d dev_state %d stream users %d users %d\n", 962 __func__, dev->std_set_in_tuner_core, dev->dev_state, 963 dev->streaming_users, dev->users); 964 965 if (mutex_lock_interruptible(&dev->lock)) 966 return -ERESTARTSYS; 967 968 ret = v4l2_fh_open(filp); 969 if (ret) { 970 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n", 971 __func__, ret); 972 mutex_unlock(&dev->lock); 973 return ret; 974 } 975 976 if (dev->users == 0) { 977 au0828_analog_stream_enable(dev); 978 au0828_analog_stream_reset(dev); 979 dev->stream_state = STREAM_OFF; 980 dev->dev_state |= DEV_INITIALIZED; 981 } 982 dev->users++; 983 mutex_unlock(&dev->lock); 984 return ret; 985 } 986 987 static int au0828_v4l2_close(struct file *filp) 988 { 989 int ret; 990 struct au0828_dev *dev = video_drvdata(filp); 991 struct video_device *vdev = video_devdata(filp); 992 993 dprintk(1, 994 "%s called std_set %d dev_state %d stream users %d users %d\n", 995 __func__, dev->std_set_in_tuner_core, dev->dev_state, 996 dev->streaming_users, dev->users); 997 998 mutex_lock(&dev->lock); 999 if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) { 1000 /* Cancel timeout thread in case they didn't call streamoff */ 1001 dev->vid_timeout_running = 0; 1002 del_timer_sync(&dev->vid_timeout); 1003 } else if (vdev->vfl_type == VFL_TYPE_VBI && 1004 dev->vbi_timeout_running) { 1005 /* Cancel timeout thread in case they didn't call streamoff */ 1006 dev->vbi_timeout_running = 0; 1007 del_timer_sync(&dev->vbi_timeout); 1008 } 1009 1010 if (dev->dev_state == DEV_DISCONNECTED) 1011 goto end; 1012 1013 if (dev->users == 1) { 1014 /* Save some power by putting tuner to sleep */ 1015 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); 1016 dev->std_set_in_tuner_core = 0; 1017 1018 /* When close the device, set the usb intf0 into alt0 to free 1019 USB bandwidth */ 1020 ret = usb_set_interface(dev->usbdev, 0, 0); 1021 if (ret < 0) 1022 pr_info("Au0828 can't set alternate to 0!\n"); 1023 } 1024 end: 1025 _vb2_fop_release(filp, NULL); 1026 dev->users--; 1027 mutex_unlock(&dev->lock); 1028 return 0; 1029 } 1030 1031 /* Must be called with dev->lock held */ 1032 static void au0828_init_tuner(struct au0828_dev *dev) 1033 { 1034 struct v4l2_frequency f = { 1035 .frequency = dev->ctrl_freq, 1036 .type = V4L2_TUNER_ANALOG_TV, 1037 }; 1038 1039 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1040 dev->std_set_in_tuner_core, dev->dev_state); 1041 1042 if (dev->std_set_in_tuner_core) 1043 return; 1044 dev->std_set_in_tuner_core = 1; 1045 i2c_gate_ctrl(dev, 1); 1046 /* If we've never sent the standard in tuner core, do so now. 1047 We don't do this at device probe because we don't want to 1048 incur the cost of a firmware load */ 1049 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std); 1050 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 1051 i2c_gate_ctrl(dev, 0); 1052 } 1053 1054 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd, 1055 struct v4l2_format *format) 1056 { 1057 int ret; 1058 int width = format->fmt.pix.width; 1059 int height = format->fmt.pix.height; 1060 1061 /* If they are demanding a format other than the one we support, 1062 bail out (tvtime asks for UYVY and then retries with YUYV) */ 1063 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY) 1064 return -EINVAL; 1065 1066 /* format->fmt.pix.width only support 720 and height 480 */ 1067 if (width != 720) 1068 width = 720; 1069 if (height != 480) 1070 height = 480; 1071 1072 format->fmt.pix.width = width; 1073 format->fmt.pix.height = height; 1074 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1075 format->fmt.pix.bytesperline = width * 2; 1076 format->fmt.pix.sizeimage = width * height * 2; 1077 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1078 format->fmt.pix.field = V4L2_FIELD_INTERLACED; 1079 format->fmt.pix.priv = 0; 1080 1081 if (cmd == VIDIOC_TRY_FMT) 1082 return 0; 1083 1084 /* maybe set new image format, driver current only support 720*480 */ 1085 dev->width = width; 1086 dev->height = height; 1087 dev->frame_size = width * height * 2; 1088 dev->field_size = width * height; 1089 dev->bytesperline = width * 2; 1090 1091 if (dev->stream_state == STREAM_ON) { 1092 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n"); 1093 ret = au0828_stream_interrupt(dev); 1094 if (ret != 0) { 1095 dprintk(1, "error interrupting video stream!\n"); 1096 return ret; 1097 } 1098 } 1099 1100 au0828_analog_stream_enable(dev); 1101 1102 return 0; 1103 } 1104 1105 static int vidioc_querycap(struct file *file, void *priv, 1106 struct v4l2_capability *cap) 1107 { 1108 struct video_device *vdev = video_devdata(file); 1109 struct au0828_dev *dev = video_drvdata(file); 1110 1111 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1112 dev->std_set_in_tuner_core, dev->dev_state); 1113 1114 strlcpy(cap->driver, "au0828", sizeof(cap->driver)); 1115 strlcpy(cap->card, dev->board.name, sizeof(cap->card)); 1116 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info)); 1117 1118 /* set the device capabilities */ 1119 cap->device_caps = V4L2_CAP_AUDIO | 1120 V4L2_CAP_READWRITE | 1121 V4L2_CAP_STREAMING | 1122 V4L2_CAP_TUNER; 1123 if (vdev->vfl_type == VFL_TYPE_GRABBER) 1124 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE; 1125 else 1126 cap->device_caps |= V4L2_CAP_VBI_CAPTURE; 1127 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS | 1128 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE; 1129 return 0; 1130 } 1131 1132 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1133 struct v4l2_fmtdesc *f) 1134 { 1135 if (f->index) 1136 return -EINVAL; 1137 1138 dprintk(1, "%s called\n", __func__); 1139 1140 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1141 strcpy(f->description, "Packed YUV2"); 1142 1143 f->flags = 0; 1144 f->pixelformat = V4L2_PIX_FMT_UYVY; 1145 1146 return 0; 1147 } 1148 1149 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 1150 struct v4l2_format *f) 1151 { 1152 struct au0828_dev *dev = video_drvdata(file); 1153 1154 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1155 dev->std_set_in_tuner_core, dev->dev_state); 1156 1157 f->fmt.pix.width = dev->width; 1158 f->fmt.pix.height = dev->height; 1159 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1160 f->fmt.pix.bytesperline = dev->bytesperline; 1161 f->fmt.pix.sizeimage = dev->frame_size; 1162 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */ 1163 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 1164 f->fmt.pix.priv = 0; 1165 return 0; 1166 } 1167 1168 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 1169 struct v4l2_format *f) 1170 { 1171 struct au0828_dev *dev = video_drvdata(file); 1172 1173 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1174 dev->std_set_in_tuner_core, dev->dev_state); 1175 1176 return au0828_set_format(dev, VIDIOC_TRY_FMT, f); 1177 } 1178 1179 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1180 struct v4l2_format *f) 1181 { 1182 struct au0828_dev *dev = video_drvdata(file); 1183 int rc; 1184 1185 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1186 dev->std_set_in_tuner_core, dev->dev_state); 1187 1188 rc = check_dev(dev); 1189 if (rc < 0) 1190 return rc; 1191 1192 if (vb2_is_busy(&dev->vb_vidq)) { 1193 pr_info("%s queue busy\n", __func__); 1194 rc = -EBUSY; 1195 goto out; 1196 } 1197 1198 rc = au0828_set_format(dev, VIDIOC_S_FMT, f); 1199 out: 1200 return rc; 1201 } 1202 1203 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) 1204 { 1205 struct au0828_dev *dev = video_drvdata(file); 1206 1207 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1208 dev->std_set_in_tuner_core, dev->dev_state); 1209 1210 if (norm == dev->std) 1211 return 0; 1212 1213 if (dev->streaming_users > 0) 1214 return -EBUSY; 1215 1216 dev->std = norm; 1217 1218 au0828_init_tuner(dev); 1219 1220 i2c_gate_ctrl(dev, 1); 1221 1222 /* 1223 * FIXME: when we support something other than 60Hz standards, 1224 * we are going to have to make the au0828 bridge adjust the size 1225 * of its capture buffer, which is currently hardcoded at 720x480 1226 */ 1227 1228 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm); 1229 1230 i2c_gate_ctrl(dev, 0); 1231 1232 return 0; 1233 } 1234 1235 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) 1236 { 1237 struct au0828_dev *dev = video_drvdata(file); 1238 1239 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1240 dev->std_set_in_tuner_core, dev->dev_state); 1241 1242 *norm = dev->std; 1243 return 0; 1244 } 1245 1246 static int vidioc_enum_input(struct file *file, void *priv, 1247 struct v4l2_input *input) 1248 { 1249 struct au0828_dev *dev = video_drvdata(file); 1250 unsigned int tmp; 1251 1252 static const char *inames[] = { 1253 [AU0828_VMUX_UNDEFINED] = "Undefined", 1254 [AU0828_VMUX_COMPOSITE] = "Composite", 1255 [AU0828_VMUX_SVIDEO] = "S-Video", 1256 [AU0828_VMUX_CABLE] = "Cable TV", 1257 [AU0828_VMUX_TELEVISION] = "Television", 1258 [AU0828_VMUX_DVB] = "DVB", 1259 [AU0828_VMUX_DEBUG] = "tv debug" 1260 }; 1261 1262 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1263 dev->std_set_in_tuner_core, dev->dev_state); 1264 1265 tmp = input->index; 1266 1267 if (tmp >= AU0828_MAX_INPUT) 1268 return -EINVAL; 1269 if (AUVI_INPUT(tmp).type == 0) 1270 return -EINVAL; 1271 1272 input->index = tmp; 1273 strcpy(input->name, inames[AUVI_INPUT(tmp).type]); 1274 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) || 1275 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) { 1276 input->type |= V4L2_INPUT_TYPE_TUNER; 1277 input->audioset = 1; 1278 } else { 1279 input->type |= V4L2_INPUT_TYPE_CAMERA; 1280 input->audioset = 2; 1281 } 1282 1283 input->std = dev->vdev.tvnorms; 1284 1285 return 0; 1286 } 1287 1288 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1289 { 1290 struct au0828_dev *dev = video_drvdata(file); 1291 1292 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1293 dev->std_set_in_tuner_core, dev->dev_state); 1294 1295 *i = dev->ctrl_input; 1296 return 0; 1297 } 1298 1299 static void au0828_s_input(struct au0828_dev *dev, int index) 1300 { 1301 int i; 1302 1303 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1304 dev->std_set_in_tuner_core, dev->dev_state); 1305 1306 switch (AUVI_INPUT(index).type) { 1307 case AU0828_VMUX_SVIDEO: 1308 dev->input_type = AU0828_VMUX_SVIDEO; 1309 dev->ctrl_ainput = 1; 1310 break; 1311 case AU0828_VMUX_COMPOSITE: 1312 dev->input_type = AU0828_VMUX_COMPOSITE; 1313 dev->ctrl_ainput = 1; 1314 break; 1315 case AU0828_VMUX_TELEVISION: 1316 dev->input_type = AU0828_VMUX_TELEVISION; 1317 dev->ctrl_ainput = 0; 1318 break; 1319 default: 1320 dprintk(1, "unknown input type set [%d]\n", 1321 AUVI_INPUT(index).type); 1322 break; 1323 } 1324 1325 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 1326 AUVI_INPUT(index).vmux, 0, 0); 1327 1328 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1329 int enable = 0; 1330 if (AUVI_INPUT(i).audio_setup == NULL) 1331 continue; 1332 1333 if (i == index) 1334 enable = 1; 1335 else 1336 enable = 0; 1337 if (enable) { 1338 (AUVI_INPUT(i).audio_setup)(dev, enable); 1339 } else { 1340 /* Make sure we leave it turned on if some 1341 other input is routed to this callback */ 1342 if ((AUVI_INPUT(i).audio_setup) != 1343 ((AUVI_INPUT(index).audio_setup))) { 1344 (AUVI_INPUT(i).audio_setup)(dev, enable); 1345 } 1346 } 1347 } 1348 1349 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 1350 AUVI_INPUT(index).amux, 0, 0); 1351 } 1352 1353 static int vidioc_s_input(struct file *file, void *priv, unsigned int index) 1354 { 1355 struct au0828_dev *dev = video_drvdata(file); 1356 1357 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__, 1358 index); 1359 if (index >= AU0828_MAX_INPUT) 1360 return -EINVAL; 1361 if (AUVI_INPUT(index).type == 0) 1362 return -EINVAL; 1363 dev->ctrl_input = index; 1364 au0828_s_input(dev, index); 1365 return 0; 1366 } 1367 1368 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a) 1369 { 1370 if (a->index > 1) 1371 return -EINVAL; 1372 1373 dprintk(1, "%s called\n", __func__); 1374 1375 if (a->index == 0) 1376 strcpy(a->name, "Television"); 1377 else 1378 strcpy(a->name, "Line in"); 1379 1380 a->capability = V4L2_AUDCAP_STEREO; 1381 return 0; 1382 } 1383 1384 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 1385 { 1386 struct au0828_dev *dev = video_drvdata(file); 1387 1388 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1389 dev->std_set_in_tuner_core, dev->dev_state); 1390 1391 a->index = dev->ctrl_ainput; 1392 if (a->index == 0) 1393 strcpy(a->name, "Television"); 1394 else 1395 strcpy(a->name, "Line in"); 1396 1397 a->capability = V4L2_AUDCAP_STEREO; 1398 return 0; 1399 } 1400 1401 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 1402 { 1403 struct au0828_dev *dev = video_drvdata(file); 1404 1405 if (a->index != dev->ctrl_ainput) 1406 return -EINVAL; 1407 1408 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1409 dev->std_set_in_tuner_core, dev->dev_state); 1410 return 0; 1411 } 1412 1413 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1414 { 1415 struct au0828_dev *dev = video_drvdata(file); 1416 1417 if (t->index != 0) 1418 return -EINVAL; 1419 1420 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1421 dev->std_set_in_tuner_core, dev->dev_state); 1422 1423 strcpy(t->name, "Auvitek tuner"); 1424 1425 au0828_init_tuner(dev); 1426 i2c_gate_ctrl(dev, 1); 1427 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 1428 i2c_gate_ctrl(dev, 0); 1429 return 0; 1430 } 1431 1432 static int vidioc_s_tuner(struct file *file, void *priv, 1433 const struct v4l2_tuner *t) 1434 { 1435 struct au0828_dev *dev = video_drvdata(file); 1436 1437 if (t->index != 0) 1438 return -EINVAL; 1439 1440 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1441 dev->std_set_in_tuner_core, dev->dev_state); 1442 1443 au0828_init_tuner(dev); 1444 i2c_gate_ctrl(dev, 1); 1445 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 1446 i2c_gate_ctrl(dev, 0); 1447 1448 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal, 1449 t->afc); 1450 1451 return 0; 1452 1453 } 1454 1455 static int vidioc_g_frequency(struct file *file, void *priv, 1456 struct v4l2_frequency *freq) 1457 { 1458 struct au0828_dev *dev = video_drvdata(file); 1459 1460 if (freq->tuner != 0) 1461 return -EINVAL; 1462 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1463 dev->std_set_in_tuner_core, dev->dev_state); 1464 freq->frequency = dev->ctrl_freq; 1465 return 0; 1466 } 1467 1468 static int vidioc_s_frequency(struct file *file, void *priv, 1469 const struct v4l2_frequency *freq) 1470 { 1471 struct au0828_dev *dev = video_drvdata(file); 1472 struct v4l2_frequency new_freq = *freq; 1473 1474 if (freq->tuner != 0) 1475 return -EINVAL; 1476 1477 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1478 dev->std_set_in_tuner_core, dev->dev_state); 1479 1480 au0828_init_tuner(dev); 1481 i2c_gate_ctrl(dev, 1); 1482 1483 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq); 1484 /* Get the actual set (and possibly clamped) frequency */ 1485 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq); 1486 dev->ctrl_freq = new_freq.frequency; 1487 1488 i2c_gate_ctrl(dev, 0); 1489 1490 au0828_analog_stream_reset(dev); 1491 1492 return 0; 1493 } 1494 1495 1496 /* RAW VBI ioctls */ 1497 1498 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 1499 struct v4l2_format *format) 1500 { 1501 struct au0828_dev *dev = video_drvdata(file); 1502 1503 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1504 dev->std_set_in_tuner_core, dev->dev_state); 1505 1506 format->fmt.vbi.samples_per_line = dev->vbi_width; 1507 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1508 format->fmt.vbi.offset = 0; 1509 format->fmt.vbi.flags = 0; 1510 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 1511 1512 format->fmt.vbi.count[0] = dev->vbi_height; 1513 format->fmt.vbi.count[1] = dev->vbi_height; 1514 format->fmt.vbi.start[0] = 21; 1515 format->fmt.vbi.start[1] = 284; 1516 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved)); 1517 1518 return 0; 1519 } 1520 1521 static int vidioc_cropcap(struct file *file, void *priv, 1522 struct v4l2_cropcap *cc) 1523 { 1524 struct au0828_dev *dev = video_drvdata(file); 1525 1526 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1527 return -EINVAL; 1528 1529 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1530 dev->std_set_in_tuner_core, dev->dev_state); 1531 1532 cc->bounds.left = 0; 1533 cc->bounds.top = 0; 1534 cc->bounds.width = dev->width; 1535 cc->bounds.height = dev->height; 1536 1537 cc->defrect = cc->bounds; 1538 1539 cc->pixelaspect.numerator = 54; 1540 cc->pixelaspect.denominator = 59; 1541 1542 return 0; 1543 } 1544 1545 #ifdef CONFIG_VIDEO_ADV_DEBUG 1546 static int vidioc_g_register(struct file *file, void *priv, 1547 struct v4l2_dbg_register *reg) 1548 { 1549 struct au0828_dev *dev = video_drvdata(file); 1550 1551 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1552 dev->std_set_in_tuner_core, dev->dev_state); 1553 1554 reg->val = au0828_read(dev, reg->reg); 1555 reg->size = 1; 1556 return 0; 1557 } 1558 1559 static int vidioc_s_register(struct file *file, void *priv, 1560 const struct v4l2_dbg_register *reg) 1561 { 1562 struct au0828_dev *dev = video_drvdata(file); 1563 1564 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1565 dev->std_set_in_tuner_core, dev->dev_state); 1566 1567 return au0828_writereg(dev, reg->reg, reg->val); 1568 } 1569 #endif 1570 1571 static int vidioc_log_status(struct file *file, void *fh) 1572 { 1573 struct video_device *vdev = video_devdata(file); 1574 1575 dprintk(1, "%s called\n", __func__); 1576 1577 v4l2_ctrl_log_status(file, fh); 1578 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status); 1579 return 0; 1580 } 1581 1582 void au0828_v4l2_suspend(struct au0828_dev *dev) 1583 { 1584 struct urb *urb; 1585 int i; 1586 1587 pr_info("stopping V4L2\n"); 1588 1589 if (dev->stream_state == STREAM_ON) { 1590 pr_info("stopping V4L2 active URBs\n"); 1591 au0828_analog_stream_disable(dev); 1592 /* stop urbs */ 1593 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1594 urb = dev->isoc_ctl.urb[i]; 1595 if (urb) { 1596 if (!irqs_disabled()) 1597 usb_kill_urb(urb); 1598 else 1599 usb_unlink_urb(urb); 1600 } 1601 } 1602 } 1603 1604 if (dev->vid_timeout_running) 1605 del_timer_sync(&dev->vid_timeout); 1606 if (dev->vbi_timeout_running) 1607 del_timer_sync(&dev->vbi_timeout); 1608 } 1609 1610 void au0828_v4l2_resume(struct au0828_dev *dev) 1611 { 1612 int i, rc; 1613 1614 pr_info("restarting V4L2\n"); 1615 1616 if (dev->stream_state == STREAM_ON) { 1617 au0828_stream_interrupt(dev); 1618 au0828_init_tuner(dev); 1619 } 1620 1621 if (dev->vid_timeout_running) 1622 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 1623 if (dev->vbi_timeout_running) 1624 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1625 1626 /* If we were doing ac97 instead of i2s, it would go here...*/ 1627 au0828_i2s_init(dev); 1628 1629 au0828_analog_stream_enable(dev); 1630 1631 if (!(dev->stream_state == STREAM_ON)) { 1632 au0828_analog_stream_reset(dev); 1633 /* submit urbs */ 1634 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1635 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 1636 if (rc) { 1637 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 1638 i, rc); 1639 au0828_uninit_isoc(dev); 1640 } 1641 } 1642 } 1643 } 1644 1645 static struct v4l2_file_operations au0828_v4l_fops = { 1646 .owner = THIS_MODULE, 1647 .open = au0828_v4l2_open, 1648 .release = au0828_v4l2_close, 1649 .read = vb2_fop_read, 1650 .poll = vb2_fop_poll, 1651 .mmap = vb2_fop_mmap, 1652 .unlocked_ioctl = video_ioctl2, 1653 }; 1654 1655 static const struct v4l2_ioctl_ops video_ioctl_ops = { 1656 .vidioc_querycap = vidioc_querycap, 1657 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1658 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1659 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1660 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1661 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1662 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1663 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1664 .vidioc_enumaudio = vidioc_enumaudio, 1665 .vidioc_g_audio = vidioc_g_audio, 1666 .vidioc_s_audio = vidioc_s_audio, 1667 .vidioc_cropcap = vidioc_cropcap, 1668 1669 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1670 .vidioc_create_bufs = vb2_ioctl_create_bufs, 1671 .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 1672 .vidioc_querybuf = vb2_ioctl_querybuf, 1673 .vidioc_qbuf = vb2_ioctl_qbuf, 1674 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1675 .vidioc_expbuf = vb2_ioctl_expbuf, 1676 1677 .vidioc_s_std = vidioc_s_std, 1678 .vidioc_g_std = vidioc_g_std, 1679 .vidioc_enum_input = vidioc_enum_input, 1680 .vidioc_g_input = vidioc_g_input, 1681 .vidioc_s_input = vidioc_s_input, 1682 1683 .vidioc_streamon = vb2_ioctl_streamon, 1684 .vidioc_streamoff = vb2_ioctl_streamoff, 1685 1686 .vidioc_g_tuner = vidioc_g_tuner, 1687 .vidioc_s_tuner = vidioc_s_tuner, 1688 .vidioc_g_frequency = vidioc_g_frequency, 1689 .vidioc_s_frequency = vidioc_s_frequency, 1690 #ifdef CONFIG_VIDEO_ADV_DEBUG 1691 .vidioc_g_register = vidioc_g_register, 1692 .vidioc_s_register = vidioc_s_register, 1693 #endif 1694 .vidioc_log_status = vidioc_log_status, 1695 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1696 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1697 }; 1698 1699 static const struct video_device au0828_video_template = { 1700 .fops = &au0828_v4l_fops, 1701 .release = video_device_release_empty, 1702 .ioctl_ops = &video_ioctl_ops, 1703 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M, 1704 }; 1705 1706 static int au0828_vb2_setup(struct au0828_dev *dev) 1707 { 1708 int rc; 1709 struct vb2_queue *q; 1710 1711 /* Setup Videobuf2 for Video capture */ 1712 q = &dev->vb_vidq; 1713 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1714 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1715 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1716 q->drv_priv = dev; 1717 q->buf_struct_size = sizeof(struct au0828_buffer); 1718 q->ops = &au0828_video_qops; 1719 q->mem_ops = &vb2_vmalloc_memops; 1720 1721 rc = vb2_queue_init(q); 1722 if (rc < 0) 1723 return rc; 1724 1725 /* Setup Videobuf2 for VBI capture */ 1726 q = &dev->vb_vbiq; 1727 q->type = V4L2_BUF_TYPE_VBI_CAPTURE; 1728 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1729 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1730 q->drv_priv = dev; 1731 q->buf_struct_size = sizeof(struct au0828_buffer); 1732 q->ops = &au0828_vbi_qops; 1733 q->mem_ops = &vb2_vmalloc_memops; 1734 1735 rc = vb2_queue_init(q); 1736 if (rc < 0) 1737 return rc; 1738 1739 return 0; 1740 } 1741 1742 /**************************************************************************/ 1743 1744 int au0828_analog_register(struct au0828_dev *dev, 1745 struct usb_interface *interface) 1746 { 1747 int retval = -ENOMEM; 1748 struct usb_host_interface *iface_desc; 1749 struct usb_endpoint_descriptor *endpoint; 1750 int i, ret; 1751 1752 dprintk(1, "au0828_analog_register called for intf#%d!\n", 1753 interface->cur_altsetting->desc.bInterfaceNumber); 1754 1755 /* set au0828 usb interface0 to as5 */ 1756 retval = usb_set_interface(dev->usbdev, 1757 interface->cur_altsetting->desc.bInterfaceNumber, 5); 1758 if (retval != 0) { 1759 pr_info("Failure setting usb interface0 to as5\n"); 1760 return retval; 1761 } 1762 1763 /* Figure out which endpoint has the isoc interface */ 1764 iface_desc = interface->cur_altsetting; 1765 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { 1766 endpoint = &iface_desc->endpoint[i].desc; 1767 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1768 == USB_DIR_IN) && 1769 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1770 == USB_ENDPOINT_XFER_ISOC)) { 1771 1772 /* we find our isoc in endpoint */ 1773 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize); 1774 dev->max_pkt_size = (tmp & 0x07ff) * 1775 (((tmp & 0x1800) >> 11) + 1); 1776 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress; 1777 dprintk(1, 1778 "Found isoc endpoint 0x%02x, max size = %d\n", 1779 dev->isoc_in_endpointaddr, dev->max_pkt_size); 1780 } 1781 } 1782 if (!(dev->isoc_in_endpointaddr)) { 1783 pr_info("Could not locate isoc endpoint\n"); 1784 return -ENODEV; 1785 } 1786 1787 init_waitqueue_head(&dev->open); 1788 spin_lock_init(&dev->slock); 1789 1790 /* init video dma queues */ 1791 INIT_LIST_HEAD(&dev->vidq.active); 1792 INIT_LIST_HEAD(&dev->vbiq.active); 1793 1794 setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout, 1795 (unsigned long)dev); 1796 setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 1797 (unsigned long)dev); 1798 1799 dev->width = NTSC_STD_W; 1800 dev->height = NTSC_STD_H; 1801 dev->field_size = dev->width * dev->height; 1802 dev->frame_size = dev->field_size << 1; 1803 dev->bytesperline = dev->width << 1; 1804 dev->vbi_width = 720; 1805 dev->vbi_height = 1; 1806 dev->ctrl_ainput = 0; 1807 dev->ctrl_freq = 960; 1808 dev->std = V4L2_STD_NTSC_M; 1809 au0828_s_input(dev, 0); 1810 1811 mutex_init(&dev->vb_queue_lock); 1812 mutex_init(&dev->vb_vbi_queue_lock); 1813 1814 /* Fill the video capture device struct */ 1815 dev->vdev = au0828_video_template; 1816 dev->vdev.v4l2_dev = &dev->v4l2_dev; 1817 dev->vdev.lock = &dev->lock; 1818 dev->vdev.queue = &dev->vb_vidq; 1819 dev->vdev.queue->lock = &dev->vb_queue_lock; 1820 strcpy(dev->vdev.name, "au0828a video"); 1821 1822 /* Setup the VBI device */ 1823 dev->vbi_dev = au0828_video_template; 1824 dev->vbi_dev.v4l2_dev = &dev->v4l2_dev; 1825 dev->vbi_dev.lock = &dev->lock; 1826 dev->vbi_dev.queue = &dev->vb_vbiq; 1827 dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock; 1828 strcpy(dev->vbi_dev.name, "au0828a vbi"); 1829 1830 /* initialize videobuf2 stuff */ 1831 retval = au0828_vb2_setup(dev); 1832 if (retval != 0) { 1833 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n", 1834 retval); 1835 return -ENODEV; 1836 } 1837 1838 /* Register the v4l2 device */ 1839 video_set_drvdata(&dev->vdev, dev); 1840 retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1); 1841 if (retval != 0) { 1842 dprintk(1, "unable to register video device (error = %d).\n", 1843 retval); 1844 ret = -ENODEV; 1845 goto err_reg_vdev; 1846 } 1847 1848 /* Register the vbi device */ 1849 video_set_drvdata(&dev->vbi_dev, dev); 1850 retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1); 1851 if (retval != 0) { 1852 dprintk(1, "unable to register vbi device (error = %d).\n", 1853 retval); 1854 ret = -ENODEV; 1855 goto err_reg_vbi_dev; 1856 } 1857 1858 dprintk(1, "%s completed!\n", __func__); 1859 1860 return 0; 1861 1862 err_reg_vbi_dev: 1863 video_unregister_device(&dev->vdev); 1864 err_reg_vdev: 1865 vb2_queue_release(&dev->vb_vidq); 1866 vb2_queue_release(&dev->vb_vbiq); 1867 return ret; 1868 } 1869 1870