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 /* Advice that buffer was filled */ 306 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field); 307 308 buf->vb.v4l2_buf.sequence = dev->frame_count++; 309 buf->vb.v4l2_buf.field = V4L2_FIELD_INTERLACED; 310 v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp); 311 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE); 312 } 313 314 static inline void vbi_buffer_filled(struct au0828_dev *dev, 315 struct au0828_dmaqueue *dma_q, 316 struct au0828_buffer *buf) 317 { 318 /* Advice that buffer was filled */ 319 au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field); 320 321 buf->vb.v4l2_buf.sequence = dev->vbi_frame_count++; 322 buf->vb.v4l2_buf.field = V4L2_FIELD_INTERLACED; 323 v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp); 324 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE); 325 } 326 327 /* 328 * Identify the buffer header type and properly handles 329 */ 330 static void au0828_copy_video(struct au0828_dev *dev, 331 struct au0828_dmaqueue *dma_q, 332 struct au0828_buffer *buf, 333 unsigned char *p, 334 unsigned char *outp, unsigned long len) 335 { 336 void *fieldstart, *startwrite, *startread; 337 int linesdone, currlinedone, offset, lencopy, remain; 338 int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */ 339 340 if (len == 0) 341 return; 342 343 if (dma_q->pos + len > buf->length) 344 len = buf->length - dma_q->pos; 345 346 startread = p; 347 remain = len; 348 349 /* Interlaces frame */ 350 if (buf->top_field) 351 fieldstart = outp; 352 else 353 fieldstart = outp + bytesperline; 354 355 linesdone = dma_q->pos / bytesperline; 356 currlinedone = dma_q->pos % bytesperline; 357 offset = linesdone * bytesperline * 2 + currlinedone; 358 startwrite = fieldstart + offset; 359 lencopy = bytesperline - currlinedone; 360 lencopy = lencopy > remain ? remain : lencopy; 361 362 if ((char *)startwrite + lencopy > (char *)outp + buf->length) { 363 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n", 364 ((char *)startwrite + lencopy) - 365 ((char *)outp + buf->length)); 366 remain = (char *)outp + buf->length - (char *)startwrite; 367 lencopy = remain; 368 } 369 if (lencopy <= 0) 370 return; 371 memcpy(startwrite, startread, lencopy); 372 373 remain -= lencopy; 374 375 while (remain > 0) { 376 startwrite += lencopy + bytesperline; 377 startread += lencopy; 378 if (bytesperline > remain) 379 lencopy = remain; 380 else 381 lencopy = bytesperline; 382 383 if ((char *)startwrite + lencopy > (char *)outp + 384 buf->length) { 385 au0828_isocdbg("Overflow %zi bytes past buf end (2)\n", 386 ((char *)startwrite + lencopy) - 387 ((char *)outp + buf->length)); 388 lencopy = remain = (char *)outp + buf->length - 389 (char *)startwrite; 390 } 391 if (lencopy <= 0) 392 break; 393 394 memcpy(startwrite, startread, lencopy); 395 396 remain -= lencopy; 397 } 398 399 if (offset > 1440) { 400 /* We have enough data to check for greenscreen */ 401 if (outp[0] < 0x60 && outp[1440] < 0x60) 402 dev->greenscreen_detected = 1; 403 } 404 405 dma_q->pos += len; 406 } 407 408 /* 409 * video-buf generic routine to get the next available buffer 410 */ 411 static inline void get_next_buf(struct au0828_dmaqueue *dma_q, 412 struct au0828_buffer **buf) 413 { 414 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq); 415 416 if (list_empty(&dma_q->active)) { 417 au0828_isocdbg("No active queue to serve\n"); 418 dev->isoc_ctl.buf = NULL; 419 *buf = NULL; 420 return; 421 } 422 423 /* Get the next buffer */ 424 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 425 /* Cleans up buffer - Useful for testing for frame/URB loss */ 426 list_del(&(*buf)->list); 427 dma_q->pos = 0; 428 (*buf)->vb_buf = (*buf)->mem; 429 dev->isoc_ctl.buf = *buf; 430 431 return; 432 } 433 434 static void au0828_copy_vbi(struct au0828_dev *dev, 435 struct au0828_dmaqueue *dma_q, 436 struct au0828_buffer *buf, 437 unsigned char *p, 438 unsigned char *outp, unsigned long len) 439 { 440 unsigned char *startwrite, *startread; 441 int bytesperline; 442 int i, j = 0; 443 444 if (dev == NULL) { 445 au0828_isocdbg("dev is null\n"); 446 return; 447 } 448 449 if (dma_q == NULL) { 450 au0828_isocdbg("dma_q is null\n"); 451 return; 452 } 453 if (buf == NULL) 454 return; 455 if (p == NULL) { 456 au0828_isocdbg("p is null\n"); 457 return; 458 } 459 if (outp == NULL) { 460 au0828_isocdbg("outp is null\n"); 461 return; 462 } 463 464 bytesperline = dev->vbi_width; 465 466 if (dma_q->pos + len > buf->length) 467 len = buf->length - dma_q->pos; 468 469 startread = p; 470 startwrite = outp + (dma_q->pos / 2); 471 472 /* Make sure the bottom field populates the second half of the frame */ 473 if (buf->top_field == 0) 474 startwrite += bytesperline * dev->vbi_height; 475 476 for (i = 0; i < len; i += 2) 477 startwrite[j++] = startread[i+1]; 478 479 dma_q->pos += len; 480 } 481 482 483 /* 484 * video-buf generic routine to get the next available VBI buffer 485 */ 486 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q, 487 struct au0828_buffer **buf) 488 { 489 struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq); 490 491 if (list_empty(&dma_q->active)) { 492 au0828_isocdbg("No active queue to serve\n"); 493 dev->isoc_ctl.vbi_buf = NULL; 494 *buf = NULL; 495 return; 496 } 497 498 /* Get the next buffer */ 499 *buf = list_entry(dma_q->active.next, struct au0828_buffer, list); 500 /* Cleans up buffer - Useful for testing for frame/URB loss */ 501 list_del(&(*buf)->list); 502 dma_q->pos = 0; 503 (*buf)->vb_buf = (*buf)->mem; 504 dev->isoc_ctl.vbi_buf = *buf; 505 return; 506 } 507 508 /* 509 * Controls the isoc copy of each urb packet 510 */ 511 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb) 512 { 513 struct au0828_buffer *buf; 514 struct au0828_buffer *vbi_buf; 515 struct au0828_dmaqueue *dma_q = urb->context; 516 struct au0828_dmaqueue *vbi_dma_q = &dev->vbiq; 517 unsigned char *outp = NULL; 518 unsigned char *vbioutp = NULL; 519 int i, len = 0, rc = 1; 520 unsigned char *p; 521 unsigned char fbyte; 522 unsigned int vbi_field_size; 523 unsigned int remain, lencopy; 524 525 if (!dev) 526 return 0; 527 528 if ((dev->dev_state & DEV_DISCONNECTED) || 529 (dev->dev_state & DEV_MISCONFIGURED)) 530 return 0; 531 532 if (urb->status < 0) { 533 print_err_status(dev, -1, urb->status); 534 if (urb->status == -ENOENT) 535 return 0; 536 } 537 538 buf = dev->isoc_ctl.buf; 539 if (buf != NULL) 540 outp = vb2_plane_vaddr(&buf->vb, 0); 541 542 vbi_buf = dev->isoc_ctl.vbi_buf; 543 if (vbi_buf != NULL) 544 vbioutp = vb2_plane_vaddr(&vbi_buf->vb, 0); 545 546 for (i = 0; i < urb->number_of_packets; i++) { 547 int status = urb->iso_frame_desc[i].status; 548 549 if (status < 0) { 550 print_err_status(dev, i, status); 551 if (urb->iso_frame_desc[i].status != -EPROTO) 552 continue; 553 } 554 555 if (urb->iso_frame_desc[i].actual_length <= 0) 556 continue; 557 558 if (urb->iso_frame_desc[i].actual_length > 559 dev->max_pkt_size) { 560 au0828_isocdbg("packet bigger than packet size"); 561 continue; 562 } 563 564 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset; 565 fbyte = p[0]; 566 len = urb->iso_frame_desc[i].actual_length - 4; 567 p += 4; 568 569 if (fbyte & 0x80) { 570 len -= 4; 571 p += 4; 572 au0828_isocdbg("Video frame %s\n", 573 (fbyte & 0x40) ? "odd" : "even"); 574 if (fbyte & 0x40) { 575 /* VBI */ 576 if (vbi_buf != NULL) 577 vbi_buffer_filled(dev, 578 vbi_dma_q, 579 vbi_buf); 580 vbi_get_next_buf(vbi_dma_q, &vbi_buf); 581 if (vbi_buf == NULL) 582 vbioutp = NULL; 583 else 584 vbioutp = vb2_plane_vaddr( 585 &vbi_buf->vb, 0); 586 587 /* Video */ 588 if (buf != NULL) 589 buffer_filled(dev, dma_q, buf); 590 get_next_buf(dma_q, &buf); 591 if (buf == NULL) 592 outp = NULL; 593 else 594 outp = vb2_plane_vaddr(&buf->vb, 0); 595 596 /* As long as isoc traffic is arriving, keep 597 resetting the timer */ 598 if (dev->vid_timeout_running) 599 mod_timer(&dev->vid_timeout, 600 jiffies + (HZ / 10)); 601 if (dev->vbi_timeout_running) 602 mod_timer(&dev->vbi_timeout, 603 jiffies + (HZ / 10)); 604 } 605 606 if (buf != NULL) { 607 if (fbyte & 0x40) 608 buf->top_field = 1; 609 else 610 buf->top_field = 0; 611 } 612 613 if (vbi_buf != NULL) { 614 if (fbyte & 0x40) 615 vbi_buf->top_field = 1; 616 else 617 vbi_buf->top_field = 0; 618 } 619 620 dev->vbi_read = 0; 621 vbi_dma_q->pos = 0; 622 dma_q->pos = 0; 623 } 624 625 vbi_field_size = dev->vbi_width * dev->vbi_height * 2; 626 if (dev->vbi_read < vbi_field_size) { 627 remain = vbi_field_size - dev->vbi_read; 628 if (len < remain) 629 lencopy = len; 630 else 631 lencopy = remain; 632 633 if (vbi_buf != NULL) 634 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p, 635 vbioutp, len); 636 637 len -= lencopy; 638 p += lencopy; 639 dev->vbi_read += lencopy; 640 } 641 642 if (dev->vbi_read >= vbi_field_size && buf != NULL) 643 au0828_copy_video(dev, dma_q, buf, p, outp, len); 644 } 645 return rc; 646 } 647 648 static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt, 649 unsigned int *nbuffers, unsigned int *nplanes, 650 unsigned int sizes[], void *alloc_ctxs[]) 651 { 652 struct au0828_dev *dev = vb2_get_drv_priv(vq); 653 unsigned long img_size = dev->height * dev->bytesperline; 654 unsigned long size; 655 656 size = fmt ? fmt->fmt.pix.sizeimage : img_size; 657 if (size < img_size) 658 return -EINVAL; 659 660 *nplanes = 1; 661 sizes[0] = size; 662 663 return 0; 664 } 665 666 static int 667 buffer_prepare(struct vb2_buffer *vb) 668 { 669 struct au0828_buffer *buf = container_of(vb, struct au0828_buffer, vb); 670 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 671 672 buf->length = dev->height * dev->bytesperline; 673 674 if (vb2_plane_size(vb, 0) < buf->length) { 675 pr_err("%s data will not fit into plane (%lu < %lu)\n", 676 __func__, vb2_plane_size(vb, 0), buf->length); 677 return -EINVAL; 678 } 679 vb2_set_plane_payload(&buf->vb, 0, buf->length); 680 return 0; 681 } 682 683 static void 684 buffer_queue(struct vb2_buffer *vb) 685 { 686 struct au0828_buffer *buf = container_of(vb, 687 struct au0828_buffer, 688 vb); 689 struct au0828_dev *dev = vb2_get_drv_priv(vb->vb2_queue); 690 struct au0828_dmaqueue *vidq = &dev->vidq; 691 unsigned long flags = 0; 692 693 buf->mem = vb2_plane_vaddr(vb, 0); 694 buf->length = vb2_plane_size(vb, 0); 695 696 spin_lock_irqsave(&dev->slock, flags); 697 list_add_tail(&buf->list, &vidq->active); 698 spin_unlock_irqrestore(&dev->slock, flags); 699 } 700 701 static int au0828_i2s_init(struct au0828_dev *dev) 702 { 703 /* Enable i2s mode */ 704 au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01); 705 return 0; 706 } 707 708 /* 709 * Auvitek au0828 analog stream enable 710 */ 711 static int au0828_analog_stream_enable(struct au0828_dev *d) 712 { 713 struct usb_interface *iface; 714 int ret, h, w; 715 716 dprintk(1, "au0828_analog_stream_enable called\n"); 717 718 iface = usb_ifnum_to_if(d->usbdev, 0); 719 if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) { 720 dprintk(1, "Changing intf#0 to alt 5\n"); 721 /* set au0828 interface0 to AS5 here again */ 722 ret = usb_set_interface(d->usbdev, 0, 5); 723 if (ret < 0) { 724 pr_info("Au0828 can't set alt setting to 5!\n"); 725 return -EBUSY; 726 } 727 } 728 729 h = d->height / 2 + 2; 730 w = d->width * 2; 731 732 au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00); 733 au0828_writereg(d, 0x106, 0x00); 734 /* set x position */ 735 au0828_writereg(d, 0x110, 0x00); 736 au0828_writereg(d, 0x111, 0x00); 737 au0828_writereg(d, 0x114, w & 0xff); 738 au0828_writereg(d, 0x115, w >> 8); 739 /* set y position */ 740 au0828_writereg(d, 0x112, 0x00); 741 au0828_writereg(d, 0x113, 0x00); 742 au0828_writereg(d, 0x116, h & 0xff); 743 au0828_writereg(d, 0x117, h >> 8); 744 au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3); 745 746 return 0; 747 } 748 749 static int au0828_analog_stream_disable(struct au0828_dev *d) 750 { 751 dprintk(1, "au0828_analog_stream_disable called\n"); 752 au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0); 753 return 0; 754 } 755 756 static void au0828_analog_stream_reset(struct au0828_dev *dev) 757 { 758 dprintk(1, "au0828_analog_stream_reset called\n"); 759 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0); 760 mdelay(30); 761 au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3); 762 } 763 764 /* 765 * Some operations needs to stop current streaming 766 */ 767 static int au0828_stream_interrupt(struct au0828_dev *dev) 768 { 769 int ret = 0; 770 771 dev->stream_state = STREAM_INTERRUPT; 772 if (dev->dev_state == DEV_DISCONNECTED) 773 return -ENODEV; 774 else if (ret) { 775 dev->dev_state = DEV_MISCONFIGURED; 776 dprintk(1, "%s device is misconfigured!\n", __func__); 777 return ret; 778 } 779 return 0; 780 } 781 782 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count) 783 { 784 struct au0828_dev *dev = vb2_get_drv_priv(vq); 785 int rc = 0; 786 787 dprintk(1, "au0828_start_analog_streaming called %d\n", 788 dev->streaming_users); 789 790 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) 791 dev->frame_count = 0; 792 else 793 dev->vbi_frame_count = 0; 794 795 if (dev->streaming_users == 0) { 796 /* If we were doing ac97 instead of i2s, it would go here...*/ 797 au0828_i2s_init(dev); 798 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB, 799 AU0828_MAX_ISO_BUFS, dev->max_pkt_size, 800 au0828_isoc_copy); 801 if (rc < 0) { 802 pr_info("au0828_init_isoc failed\n"); 803 return rc; 804 } 805 806 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { 807 v4l2_device_call_all(&dev->v4l2_dev, 0, video, 808 s_stream, 1); 809 dev->vid_timeout_running = 1; 810 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 811 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) { 812 dev->vbi_timeout_running = 1; 813 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 814 } 815 } 816 dev->streaming_users++; 817 return rc; 818 } 819 820 static void au0828_stop_streaming(struct vb2_queue *vq) 821 { 822 struct au0828_dev *dev = vb2_get_drv_priv(vq); 823 struct au0828_dmaqueue *vidq = &dev->vidq; 824 unsigned long flags = 0; 825 826 dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users); 827 828 if (dev->streaming_users-- == 1) 829 au0828_uninit_isoc(dev); 830 831 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0); 832 dev->vid_timeout_running = 0; 833 del_timer_sync(&dev->vid_timeout); 834 835 spin_lock_irqsave(&dev->slock, flags); 836 if (dev->isoc_ctl.buf != NULL) { 837 vb2_buffer_done(&dev->isoc_ctl.buf->vb, VB2_BUF_STATE_ERROR); 838 dev->isoc_ctl.buf = NULL; 839 } 840 while (!list_empty(&vidq->active)) { 841 struct au0828_buffer *buf; 842 843 buf = list_entry(vidq->active.next, struct au0828_buffer, list); 844 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); 845 list_del(&buf->list); 846 } 847 spin_unlock_irqrestore(&dev->slock, flags); 848 } 849 850 void au0828_stop_vbi_streaming(struct vb2_queue *vq) 851 { 852 struct au0828_dev *dev = vb2_get_drv_priv(vq); 853 struct au0828_dmaqueue *vbiq = &dev->vbiq; 854 unsigned long flags = 0; 855 856 dprintk(1, "au0828_stop_vbi_streaming called %d\n", 857 dev->streaming_users); 858 859 if (dev->streaming_users-- == 1) 860 au0828_uninit_isoc(dev); 861 862 spin_lock_irqsave(&dev->slock, flags); 863 if (dev->isoc_ctl.vbi_buf != NULL) { 864 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb, 865 VB2_BUF_STATE_ERROR); 866 dev->isoc_ctl.vbi_buf = NULL; 867 } 868 while (!list_empty(&vbiq->active)) { 869 struct au0828_buffer *buf; 870 871 buf = list_entry(vbiq->active.next, struct au0828_buffer, list); 872 list_del(&buf->list); 873 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); 874 } 875 spin_unlock_irqrestore(&dev->slock, flags); 876 877 dev->vbi_timeout_running = 0; 878 del_timer_sync(&dev->vbi_timeout); 879 } 880 881 static struct vb2_ops au0828_video_qops = { 882 .queue_setup = queue_setup, 883 .buf_prepare = buffer_prepare, 884 .buf_queue = buffer_queue, 885 .start_streaming = au0828_start_analog_streaming, 886 .stop_streaming = au0828_stop_streaming, 887 .wait_prepare = vb2_ops_wait_prepare, 888 .wait_finish = vb2_ops_wait_finish, 889 }; 890 891 /* ------------------------------------------------------------------ 892 V4L2 interface 893 ------------------------------------------------------------------*/ 894 /* 895 * au0828_analog_unregister 896 * unregister v4l2 devices 897 */ 898 void au0828_analog_unregister(struct au0828_dev *dev) 899 { 900 dprintk(1, "au0828_analog_unregister called\n"); 901 mutex_lock(&au0828_sysfs_lock); 902 903 if (dev->vdev) 904 video_unregister_device(dev->vdev); 905 if (dev->vbi_dev) 906 video_unregister_device(dev->vbi_dev); 907 908 mutex_unlock(&au0828_sysfs_lock); 909 } 910 911 /* This function ensures that video frames continue to be delivered even if 912 the ITU-656 input isn't receiving any data (thereby preventing applications 913 such as tvtime from hanging) */ 914 static void au0828_vid_buffer_timeout(unsigned long data) 915 { 916 struct au0828_dev *dev = (struct au0828_dev *) data; 917 struct au0828_dmaqueue *dma_q = &dev->vidq; 918 struct au0828_buffer *buf; 919 unsigned char *vid_data; 920 unsigned long flags = 0; 921 922 spin_lock_irqsave(&dev->slock, flags); 923 924 buf = dev->isoc_ctl.buf; 925 if (buf != NULL) { 926 vid_data = vb2_plane_vaddr(&buf->vb, 0); 927 memset(vid_data, 0x00, buf->length); /* Blank green frame */ 928 buffer_filled(dev, dma_q, buf); 929 } 930 get_next_buf(dma_q, &buf); 931 932 if (dev->vid_timeout_running == 1) 933 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 934 935 spin_unlock_irqrestore(&dev->slock, flags); 936 } 937 938 static void au0828_vbi_buffer_timeout(unsigned long data) 939 { 940 struct au0828_dev *dev = (struct au0828_dev *) data; 941 struct au0828_dmaqueue *dma_q = &dev->vbiq; 942 struct au0828_buffer *buf; 943 unsigned char *vbi_data; 944 unsigned long flags = 0; 945 946 spin_lock_irqsave(&dev->slock, flags); 947 948 buf = dev->isoc_ctl.vbi_buf; 949 if (buf != NULL) { 950 vbi_data = vb2_plane_vaddr(&buf->vb, 0); 951 memset(vbi_data, 0x00, buf->length); 952 vbi_buffer_filled(dev, dma_q, buf); 953 } 954 vbi_get_next_buf(dma_q, &buf); 955 956 if (dev->vbi_timeout_running == 1) 957 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 958 spin_unlock_irqrestore(&dev->slock, flags); 959 } 960 961 static int au0828_v4l2_open(struct file *filp) 962 { 963 struct au0828_dev *dev = video_drvdata(filp); 964 int ret; 965 966 dprintk(1, 967 "%s called std_set %d dev_state %d stream users %d users %d\n", 968 __func__, dev->std_set_in_tuner_core, dev->dev_state, 969 dev->streaming_users, dev->users); 970 971 if (mutex_lock_interruptible(&dev->lock)) 972 return -ERESTARTSYS; 973 974 ret = v4l2_fh_open(filp); 975 if (ret) { 976 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n", 977 __func__, ret); 978 mutex_unlock(&dev->lock); 979 return ret; 980 } 981 982 if (dev->users == 0) { 983 au0828_analog_stream_enable(dev); 984 au0828_analog_stream_reset(dev); 985 dev->stream_state = STREAM_OFF; 986 dev->dev_state |= DEV_INITIALIZED; 987 } 988 dev->users++; 989 mutex_unlock(&dev->lock); 990 return ret; 991 } 992 993 static int au0828_v4l2_close(struct file *filp) 994 { 995 int ret; 996 struct au0828_dev *dev = video_drvdata(filp); 997 struct video_device *vdev = video_devdata(filp); 998 999 dprintk(1, 1000 "%s called std_set %d dev_state %d stream users %d users %d\n", 1001 __func__, dev->std_set_in_tuner_core, dev->dev_state, 1002 dev->streaming_users, dev->users); 1003 1004 mutex_lock(&dev->lock); 1005 if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) { 1006 /* Cancel timeout thread in case they didn't call streamoff */ 1007 dev->vid_timeout_running = 0; 1008 del_timer_sync(&dev->vid_timeout); 1009 } else if (vdev->vfl_type == VFL_TYPE_VBI && 1010 dev->vbi_timeout_running) { 1011 /* Cancel timeout thread in case they didn't call streamoff */ 1012 dev->vbi_timeout_running = 0; 1013 del_timer_sync(&dev->vbi_timeout); 1014 } 1015 1016 if (dev->dev_state == DEV_DISCONNECTED) 1017 goto end; 1018 1019 if (dev->users == 1) { 1020 /* Save some power by putting tuner to sleep */ 1021 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0); 1022 dev->std_set_in_tuner_core = 0; 1023 1024 /* When close the device, set the usb intf0 into alt0 to free 1025 USB bandwidth */ 1026 ret = usb_set_interface(dev->usbdev, 0, 0); 1027 if (ret < 0) 1028 pr_info("Au0828 can't set alternate to 0!\n"); 1029 } 1030 end: 1031 _vb2_fop_release(filp, NULL); 1032 dev->users--; 1033 mutex_unlock(&dev->lock); 1034 return 0; 1035 } 1036 1037 /* Must be called with dev->lock held */ 1038 static void au0828_init_tuner(struct au0828_dev *dev) 1039 { 1040 struct v4l2_frequency f = { 1041 .frequency = dev->ctrl_freq, 1042 .type = V4L2_TUNER_ANALOG_TV, 1043 }; 1044 1045 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1046 dev->std_set_in_tuner_core, dev->dev_state); 1047 1048 if (dev->std_set_in_tuner_core) 1049 return; 1050 dev->std_set_in_tuner_core = 1; 1051 i2c_gate_ctrl(dev, 1); 1052 /* If we've never sent the standard in tuner core, do so now. 1053 We don't do this at device probe because we don't want to 1054 incur the cost of a firmware load */ 1055 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std); 1056 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f); 1057 i2c_gate_ctrl(dev, 0); 1058 } 1059 1060 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd, 1061 struct v4l2_format *format) 1062 { 1063 int ret; 1064 int width = format->fmt.pix.width; 1065 int height = format->fmt.pix.height; 1066 1067 /* If they are demanding a format other than the one we support, 1068 bail out (tvtime asks for UYVY and then retries with YUYV) */ 1069 if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY) 1070 return -EINVAL; 1071 1072 /* format->fmt.pix.width only support 720 and height 480 */ 1073 if (width != 720) 1074 width = 720; 1075 if (height != 480) 1076 height = 480; 1077 1078 format->fmt.pix.width = width; 1079 format->fmt.pix.height = height; 1080 format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1081 format->fmt.pix.bytesperline = width * 2; 1082 format->fmt.pix.sizeimage = width * height * 2; 1083 format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; 1084 format->fmt.pix.field = V4L2_FIELD_INTERLACED; 1085 format->fmt.pix.priv = 0; 1086 1087 if (cmd == VIDIOC_TRY_FMT) 1088 return 0; 1089 1090 /* maybe set new image format, driver current only support 720*480 */ 1091 dev->width = width; 1092 dev->height = height; 1093 dev->frame_size = width * height * 2; 1094 dev->field_size = width * height; 1095 dev->bytesperline = width * 2; 1096 1097 if (dev->stream_state == STREAM_ON) { 1098 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n"); 1099 ret = au0828_stream_interrupt(dev); 1100 if (ret != 0) { 1101 dprintk(1, "error interrupting video stream!\n"); 1102 return ret; 1103 } 1104 } 1105 1106 au0828_analog_stream_enable(dev); 1107 1108 return 0; 1109 } 1110 1111 static int vidioc_querycap(struct file *file, void *priv, 1112 struct v4l2_capability *cap) 1113 { 1114 struct video_device *vdev = video_devdata(file); 1115 struct au0828_dev *dev = video_drvdata(file); 1116 1117 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1118 dev->std_set_in_tuner_core, dev->dev_state); 1119 1120 strlcpy(cap->driver, "au0828", sizeof(cap->driver)); 1121 strlcpy(cap->card, dev->board.name, sizeof(cap->card)); 1122 usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info)); 1123 1124 /* set the device capabilities */ 1125 cap->device_caps = V4L2_CAP_AUDIO | 1126 V4L2_CAP_READWRITE | 1127 V4L2_CAP_STREAMING | 1128 V4L2_CAP_TUNER; 1129 if (vdev->vfl_type == VFL_TYPE_GRABBER) 1130 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE; 1131 else 1132 cap->device_caps |= V4L2_CAP_VBI_CAPTURE; 1133 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS | 1134 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE; 1135 return 0; 1136 } 1137 1138 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, 1139 struct v4l2_fmtdesc *f) 1140 { 1141 if (f->index) 1142 return -EINVAL; 1143 1144 dprintk(1, "%s called\n", __func__); 1145 1146 f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1147 strcpy(f->description, "Packed YUV2"); 1148 1149 f->flags = 0; 1150 f->pixelformat = V4L2_PIX_FMT_UYVY; 1151 1152 return 0; 1153 } 1154 1155 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, 1156 struct v4l2_format *f) 1157 { 1158 struct au0828_dev *dev = video_drvdata(file); 1159 1160 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1161 dev->std_set_in_tuner_core, dev->dev_state); 1162 1163 f->fmt.pix.width = dev->width; 1164 f->fmt.pix.height = dev->height; 1165 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY; 1166 f->fmt.pix.bytesperline = dev->bytesperline; 1167 f->fmt.pix.sizeimage = dev->frame_size; 1168 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */ 1169 f->fmt.pix.field = V4L2_FIELD_INTERLACED; 1170 f->fmt.pix.priv = 0; 1171 return 0; 1172 } 1173 1174 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, 1175 struct v4l2_format *f) 1176 { 1177 struct au0828_dev *dev = video_drvdata(file); 1178 1179 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1180 dev->std_set_in_tuner_core, dev->dev_state); 1181 1182 return au0828_set_format(dev, VIDIOC_TRY_FMT, f); 1183 } 1184 1185 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, 1186 struct v4l2_format *f) 1187 { 1188 struct au0828_dev *dev = video_drvdata(file); 1189 int rc; 1190 1191 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1192 dev->std_set_in_tuner_core, dev->dev_state); 1193 1194 rc = check_dev(dev); 1195 if (rc < 0) 1196 return rc; 1197 1198 if (vb2_is_busy(&dev->vb_vidq)) { 1199 pr_info("%s queue busy\n", __func__); 1200 rc = -EBUSY; 1201 goto out; 1202 } 1203 1204 rc = au0828_set_format(dev, VIDIOC_S_FMT, f); 1205 out: 1206 return rc; 1207 } 1208 1209 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) 1210 { 1211 struct au0828_dev *dev = video_drvdata(file); 1212 1213 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1214 dev->std_set_in_tuner_core, dev->dev_state); 1215 1216 if (norm == dev->std) 1217 return 0; 1218 1219 if (dev->streaming_users > 0) 1220 return -EBUSY; 1221 1222 dev->std = norm; 1223 1224 au0828_init_tuner(dev); 1225 1226 i2c_gate_ctrl(dev, 1); 1227 1228 /* 1229 * FIXME: when we support something other than 60Hz standards, 1230 * we are going to have to make the au0828 bridge adjust the size 1231 * of its capture buffer, which is currently hardcoded at 720x480 1232 */ 1233 1234 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm); 1235 1236 i2c_gate_ctrl(dev, 0); 1237 1238 return 0; 1239 } 1240 1241 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) 1242 { 1243 struct au0828_dev *dev = video_drvdata(file); 1244 1245 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1246 dev->std_set_in_tuner_core, dev->dev_state); 1247 1248 *norm = dev->std; 1249 return 0; 1250 } 1251 1252 static int vidioc_enum_input(struct file *file, void *priv, 1253 struct v4l2_input *input) 1254 { 1255 struct au0828_dev *dev = video_drvdata(file); 1256 unsigned int tmp; 1257 1258 static const char *inames[] = { 1259 [AU0828_VMUX_UNDEFINED] = "Undefined", 1260 [AU0828_VMUX_COMPOSITE] = "Composite", 1261 [AU0828_VMUX_SVIDEO] = "S-Video", 1262 [AU0828_VMUX_CABLE] = "Cable TV", 1263 [AU0828_VMUX_TELEVISION] = "Television", 1264 [AU0828_VMUX_DVB] = "DVB", 1265 [AU0828_VMUX_DEBUG] = "tv debug" 1266 }; 1267 1268 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1269 dev->std_set_in_tuner_core, dev->dev_state); 1270 1271 tmp = input->index; 1272 1273 if (tmp >= AU0828_MAX_INPUT) 1274 return -EINVAL; 1275 if (AUVI_INPUT(tmp).type == 0) 1276 return -EINVAL; 1277 1278 input->index = tmp; 1279 strcpy(input->name, inames[AUVI_INPUT(tmp).type]); 1280 if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) || 1281 (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) { 1282 input->type |= V4L2_INPUT_TYPE_TUNER; 1283 input->audioset = 1; 1284 } else { 1285 input->type |= V4L2_INPUT_TYPE_CAMERA; 1286 input->audioset = 2; 1287 } 1288 1289 input->std = dev->vdev->tvnorms; 1290 1291 return 0; 1292 } 1293 1294 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) 1295 { 1296 struct au0828_dev *dev = video_drvdata(file); 1297 1298 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1299 dev->std_set_in_tuner_core, dev->dev_state); 1300 1301 *i = dev->ctrl_input; 1302 return 0; 1303 } 1304 1305 static void au0828_s_input(struct au0828_dev *dev, int index) 1306 { 1307 int i; 1308 1309 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1310 dev->std_set_in_tuner_core, dev->dev_state); 1311 1312 switch (AUVI_INPUT(index).type) { 1313 case AU0828_VMUX_SVIDEO: 1314 dev->input_type = AU0828_VMUX_SVIDEO; 1315 dev->ctrl_ainput = 1; 1316 break; 1317 case AU0828_VMUX_COMPOSITE: 1318 dev->input_type = AU0828_VMUX_COMPOSITE; 1319 dev->ctrl_ainput = 1; 1320 break; 1321 case AU0828_VMUX_TELEVISION: 1322 dev->input_type = AU0828_VMUX_TELEVISION; 1323 dev->ctrl_ainput = 0; 1324 break; 1325 default: 1326 dprintk(1, "unknown input type set [%d]\n", 1327 AUVI_INPUT(index).type); 1328 break; 1329 } 1330 1331 v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing, 1332 AUVI_INPUT(index).vmux, 0, 0); 1333 1334 for (i = 0; i < AU0828_MAX_INPUT; i++) { 1335 int enable = 0; 1336 if (AUVI_INPUT(i).audio_setup == NULL) 1337 continue; 1338 1339 if (i == index) 1340 enable = 1; 1341 else 1342 enable = 0; 1343 if (enable) { 1344 (AUVI_INPUT(i).audio_setup)(dev, enable); 1345 } else { 1346 /* Make sure we leave it turned on if some 1347 other input is routed to this callback */ 1348 if ((AUVI_INPUT(i).audio_setup) != 1349 ((AUVI_INPUT(index).audio_setup))) { 1350 (AUVI_INPUT(i).audio_setup)(dev, enable); 1351 } 1352 } 1353 } 1354 1355 v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing, 1356 AUVI_INPUT(index).amux, 0, 0); 1357 } 1358 1359 static int vidioc_s_input(struct file *file, void *priv, unsigned int index) 1360 { 1361 struct au0828_dev *dev = video_drvdata(file); 1362 1363 dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__, 1364 index); 1365 if (index >= AU0828_MAX_INPUT) 1366 return -EINVAL; 1367 if (AUVI_INPUT(index).type == 0) 1368 return -EINVAL; 1369 dev->ctrl_input = index; 1370 au0828_s_input(dev, index); 1371 return 0; 1372 } 1373 1374 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a) 1375 { 1376 if (a->index > 1) 1377 return -EINVAL; 1378 1379 dprintk(1, "%s called\n", __func__); 1380 1381 if (a->index == 0) 1382 strcpy(a->name, "Television"); 1383 else 1384 strcpy(a->name, "Line in"); 1385 1386 a->capability = V4L2_AUDCAP_STEREO; 1387 return 0; 1388 } 1389 1390 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) 1391 { 1392 struct au0828_dev *dev = video_drvdata(file); 1393 1394 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1395 dev->std_set_in_tuner_core, dev->dev_state); 1396 1397 a->index = dev->ctrl_ainput; 1398 if (a->index == 0) 1399 strcpy(a->name, "Television"); 1400 else 1401 strcpy(a->name, "Line in"); 1402 1403 a->capability = V4L2_AUDCAP_STEREO; 1404 return 0; 1405 } 1406 1407 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) 1408 { 1409 struct au0828_dev *dev = video_drvdata(file); 1410 1411 if (a->index != dev->ctrl_ainput) 1412 return -EINVAL; 1413 1414 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1415 dev->std_set_in_tuner_core, dev->dev_state); 1416 return 0; 1417 } 1418 1419 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 1420 { 1421 struct au0828_dev *dev = video_drvdata(file); 1422 1423 if (t->index != 0) 1424 return -EINVAL; 1425 1426 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1427 dev->std_set_in_tuner_core, dev->dev_state); 1428 1429 strcpy(t->name, "Auvitek tuner"); 1430 1431 au0828_init_tuner(dev); 1432 i2c_gate_ctrl(dev, 1); 1433 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t); 1434 i2c_gate_ctrl(dev, 0); 1435 return 0; 1436 } 1437 1438 static int vidioc_s_tuner(struct file *file, void *priv, 1439 const struct v4l2_tuner *t) 1440 { 1441 struct au0828_dev *dev = video_drvdata(file); 1442 1443 if (t->index != 0) 1444 return -EINVAL; 1445 1446 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1447 dev->std_set_in_tuner_core, dev->dev_state); 1448 1449 au0828_init_tuner(dev); 1450 i2c_gate_ctrl(dev, 1); 1451 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t); 1452 i2c_gate_ctrl(dev, 0); 1453 1454 dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal, 1455 t->afc); 1456 1457 return 0; 1458 1459 } 1460 1461 static int vidioc_g_frequency(struct file *file, void *priv, 1462 struct v4l2_frequency *freq) 1463 { 1464 struct au0828_dev *dev = video_drvdata(file); 1465 1466 if (freq->tuner != 0) 1467 return -EINVAL; 1468 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1469 dev->std_set_in_tuner_core, dev->dev_state); 1470 freq->frequency = dev->ctrl_freq; 1471 return 0; 1472 } 1473 1474 static int vidioc_s_frequency(struct file *file, void *priv, 1475 const struct v4l2_frequency *freq) 1476 { 1477 struct au0828_dev *dev = video_drvdata(file); 1478 struct v4l2_frequency new_freq = *freq; 1479 1480 if (freq->tuner != 0) 1481 return -EINVAL; 1482 1483 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1484 dev->std_set_in_tuner_core, dev->dev_state); 1485 1486 au0828_init_tuner(dev); 1487 i2c_gate_ctrl(dev, 1); 1488 1489 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq); 1490 /* Get the actual set (and possibly clamped) frequency */ 1491 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq); 1492 dev->ctrl_freq = new_freq.frequency; 1493 1494 i2c_gate_ctrl(dev, 0); 1495 1496 au0828_analog_stream_reset(dev); 1497 1498 return 0; 1499 } 1500 1501 1502 /* RAW VBI ioctls */ 1503 1504 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, 1505 struct v4l2_format *format) 1506 { 1507 struct au0828_dev *dev = video_drvdata(file); 1508 1509 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1510 dev->std_set_in_tuner_core, dev->dev_state); 1511 1512 format->fmt.vbi.samples_per_line = dev->vbi_width; 1513 format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; 1514 format->fmt.vbi.offset = 0; 1515 format->fmt.vbi.flags = 0; 1516 format->fmt.vbi.sampling_rate = 6750000 * 4 / 2; 1517 1518 format->fmt.vbi.count[0] = dev->vbi_height; 1519 format->fmt.vbi.count[1] = dev->vbi_height; 1520 format->fmt.vbi.start[0] = 21; 1521 format->fmt.vbi.start[1] = 284; 1522 memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved)); 1523 1524 return 0; 1525 } 1526 1527 static int vidioc_cropcap(struct file *file, void *priv, 1528 struct v4l2_cropcap *cc) 1529 { 1530 struct au0828_dev *dev = video_drvdata(file); 1531 1532 if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 1533 return -EINVAL; 1534 1535 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1536 dev->std_set_in_tuner_core, dev->dev_state); 1537 1538 cc->bounds.left = 0; 1539 cc->bounds.top = 0; 1540 cc->bounds.width = dev->width; 1541 cc->bounds.height = dev->height; 1542 1543 cc->defrect = cc->bounds; 1544 1545 cc->pixelaspect.numerator = 54; 1546 cc->pixelaspect.denominator = 59; 1547 1548 return 0; 1549 } 1550 1551 #ifdef CONFIG_VIDEO_ADV_DEBUG 1552 static int vidioc_g_register(struct file *file, void *priv, 1553 struct v4l2_dbg_register *reg) 1554 { 1555 struct au0828_dev *dev = video_drvdata(file); 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 reg->val = au0828_read(dev, reg->reg); 1561 reg->size = 1; 1562 return 0; 1563 } 1564 1565 static int vidioc_s_register(struct file *file, void *priv, 1566 const struct v4l2_dbg_register *reg) 1567 { 1568 struct au0828_dev *dev = video_drvdata(file); 1569 1570 dprintk(1, "%s called std_set %d dev_state %d\n", __func__, 1571 dev->std_set_in_tuner_core, dev->dev_state); 1572 1573 return au0828_writereg(dev, reg->reg, reg->val); 1574 } 1575 #endif 1576 1577 static int vidioc_log_status(struct file *file, void *fh) 1578 { 1579 struct video_device *vdev = video_devdata(file); 1580 1581 dprintk(1, "%s called\n", __func__); 1582 1583 v4l2_ctrl_log_status(file, fh); 1584 v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status); 1585 return 0; 1586 } 1587 1588 void au0828_v4l2_suspend(struct au0828_dev *dev) 1589 { 1590 struct urb *urb; 1591 int i; 1592 1593 pr_info("stopping V4L2\n"); 1594 1595 if (dev->stream_state == STREAM_ON) { 1596 pr_info("stopping V4L2 active URBs\n"); 1597 au0828_analog_stream_disable(dev); 1598 /* stop urbs */ 1599 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1600 urb = dev->isoc_ctl.urb[i]; 1601 if (urb) { 1602 if (!irqs_disabled()) 1603 usb_kill_urb(urb); 1604 else 1605 usb_unlink_urb(urb); 1606 } 1607 } 1608 } 1609 1610 if (dev->vid_timeout_running) 1611 del_timer_sync(&dev->vid_timeout); 1612 if (dev->vbi_timeout_running) 1613 del_timer_sync(&dev->vbi_timeout); 1614 } 1615 1616 void au0828_v4l2_resume(struct au0828_dev *dev) 1617 { 1618 int i, rc; 1619 1620 pr_info("restarting V4L2\n"); 1621 1622 if (dev->stream_state == STREAM_ON) { 1623 au0828_stream_interrupt(dev); 1624 au0828_init_tuner(dev); 1625 } 1626 1627 if (dev->vid_timeout_running) 1628 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10)); 1629 if (dev->vbi_timeout_running) 1630 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10)); 1631 1632 /* If we were doing ac97 instead of i2s, it would go here...*/ 1633 au0828_i2s_init(dev); 1634 1635 au0828_analog_stream_enable(dev); 1636 1637 if (!(dev->stream_state == STREAM_ON)) { 1638 au0828_analog_stream_reset(dev); 1639 /* submit urbs */ 1640 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) { 1641 rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC); 1642 if (rc) { 1643 au0828_isocdbg("submit of urb %i failed (error=%i)\n", 1644 i, rc); 1645 au0828_uninit_isoc(dev); 1646 } 1647 } 1648 } 1649 } 1650 1651 static struct v4l2_file_operations au0828_v4l_fops = { 1652 .owner = THIS_MODULE, 1653 .open = au0828_v4l2_open, 1654 .release = au0828_v4l2_close, 1655 .read = vb2_fop_read, 1656 .poll = vb2_fop_poll, 1657 .mmap = vb2_fop_mmap, 1658 .unlocked_ioctl = video_ioctl2, 1659 }; 1660 1661 static const struct v4l2_ioctl_ops video_ioctl_ops = { 1662 .vidioc_querycap = vidioc_querycap, 1663 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, 1664 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, 1665 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, 1666 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, 1667 .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1668 .vidioc_try_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1669 .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap, 1670 .vidioc_enumaudio = vidioc_enumaudio, 1671 .vidioc_g_audio = vidioc_g_audio, 1672 .vidioc_s_audio = vidioc_s_audio, 1673 .vidioc_cropcap = vidioc_cropcap, 1674 1675 .vidioc_reqbufs = vb2_ioctl_reqbufs, 1676 .vidioc_create_bufs = vb2_ioctl_create_bufs, 1677 .vidioc_prepare_buf = vb2_ioctl_prepare_buf, 1678 .vidioc_querybuf = vb2_ioctl_querybuf, 1679 .vidioc_qbuf = vb2_ioctl_qbuf, 1680 .vidioc_dqbuf = vb2_ioctl_dqbuf, 1681 .vidioc_expbuf = vb2_ioctl_expbuf, 1682 1683 .vidioc_s_std = vidioc_s_std, 1684 .vidioc_g_std = vidioc_g_std, 1685 .vidioc_enum_input = vidioc_enum_input, 1686 .vidioc_g_input = vidioc_g_input, 1687 .vidioc_s_input = vidioc_s_input, 1688 1689 .vidioc_streamon = vb2_ioctl_streamon, 1690 .vidioc_streamoff = vb2_ioctl_streamoff, 1691 1692 .vidioc_g_tuner = vidioc_g_tuner, 1693 .vidioc_s_tuner = vidioc_s_tuner, 1694 .vidioc_g_frequency = vidioc_g_frequency, 1695 .vidioc_s_frequency = vidioc_s_frequency, 1696 #ifdef CONFIG_VIDEO_ADV_DEBUG 1697 .vidioc_g_register = vidioc_g_register, 1698 .vidioc_s_register = vidioc_s_register, 1699 #endif 1700 .vidioc_log_status = vidioc_log_status, 1701 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, 1702 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 1703 }; 1704 1705 static const struct video_device au0828_video_template = { 1706 .fops = &au0828_v4l_fops, 1707 .release = video_device_release, 1708 .ioctl_ops = &video_ioctl_ops, 1709 .tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M, 1710 }; 1711 1712 static int au0828_vb2_setup(struct au0828_dev *dev) 1713 { 1714 int rc; 1715 struct vb2_queue *q; 1716 1717 /* Setup Videobuf2 for Video capture */ 1718 q = &dev->vb_vidq; 1719 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; 1720 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1721 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1722 q->drv_priv = dev; 1723 q->buf_struct_size = sizeof(struct au0828_buffer); 1724 q->ops = &au0828_video_qops; 1725 q->mem_ops = &vb2_vmalloc_memops; 1726 1727 rc = vb2_queue_init(q); 1728 if (rc < 0) 1729 return rc; 1730 1731 /* Setup Videobuf2 for VBI capture */ 1732 q = &dev->vb_vbiq; 1733 q->type = V4L2_BUF_TYPE_VBI_CAPTURE; 1734 q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF; 1735 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; 1736 q->drv_priv = dev; 1737 q->buf_struct_size = sizeof(struct au0828_buffer); 1738 q->ops = &au0828_vbi_qops; 1739 q->mem_ops = &vb2_vmalloc_memops; 1740 1741 rc = vb2_queue_init(q); 1742 if (rc < 0) 1743 return rc; 1744 1745 return 0; 1746 } 1747 1748 /**************************************************************************/ 1749 1750 int au0828_analog_register(struct au0828_dev *dev, 1751 struct usb_interface *interface) 1752 { 1753 int retval = -ENOMEM; 1754 struct usb_host_interface *iface_desc; 1755 struct usb_endpoint_descriptor *endpoint; 1756 int i, ret; 1757 1758 dprintk(1, "au0828_analog_register called for intf#%d!\n", 1759 interface->cur_altsetting->desc.bInterfaceNumber); 1760 1761 /* set au0828 usb interface0 to as5 */ 1762 retval = usb_set_interface(dev->usbdev, 1763 interface->cur_altsetting->desc.bInterfaceNumber, 5); 1764 if (retval != 0) { 1765 pr_info("Failure setting usb interface0 to as5\n"); 1766 return retval; 1767 } 1768 1769 /* Figure out which endpoint has the isoc interface */ 1770 iface_desc = interface->cur_altsetting; 1771 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { 1772 endpoint = &iface_desc->endpoint[i].desc; 1773 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) 1774 == USB_DIR_IN) && 1775 ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) 1776 == USB_ENDPOINT_XFER_ISOC)) { 1777 1778 /* we find our isoc in endpoint */ 1779 u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize); 1780 dev->max_pkt_size = (tmp & 0x07ff) * 1781 (((tmp & 0x1800) >> 11) + 1); 1782 dev->isoc_in_endpointaddr = endpoint->bEndpointAddress; 1783 dprintk(1, 1784 "Found isoc endpoint 0x%02x, max size = %d\n", 1785 dev->isoc_in_endpointaddr, dev->max_pkt_size); 1786 } 1787 } 1788 if (!(dev->isoc_in_endpointaddr)) { 1789 pr_info("Could not locate isoc endpoint\n"); 1790 return -ENODEV; 1791 } 1792 1793 init_waitqueue_head(&dev->open); 1794 spin_lock_init(&dev->slock); 1795 1796 /* init video dma queues */ 1797 INIT_LIST_HEAD(&dev->vidq.active); 1798 INIT_LIST_HEAD(&dev->vbiq.active); 1799 1800 setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout, 1801 (unsigned long)dev); 1802 setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout, 1803 (unsigned long)dev); 1804 1805 dev->width = NTSC_STD_W; 1806 dev->height = NTSC_STD_H; 1807 dev->field_size = dev->width * dev->height; 1808 dev->frame_size = dev->field_size << 1; 1809 dev->bytesperline = dev->width << 1; 1810 dev->vbi_width = 720; 1811 dev->vbi_height = 1; 1812 dev->ctrl_ainput = 0; 1813 dev->ctrl_freq = 960; 1814 dev->std = V4L2_STD_NTSC_M; 1815 au0828_s_input(dev, 0); 1816 1817 /* allocate and fill v4l2 video struct */ 1818 dev->vdev = video_device_alloc(); 1819 if (NULL == dev->vdev) { 1820 dprintk(1, "Can't allocate video_device.\n"); 1821 return -ENOMEM; 1822 } 1823 1824 /* allocate the VBI struct */ 1825 dev->vbi_dev = video_device_alloc(); 1826 if (NULL == dev->vbi_dev) { 1827 dprintk(1, "Can't allocate vbi_device.\n"); 1828 ret = -ENOMEM; 1829 goto err_vdev; 1830 } 1831 1832 mutex_init(&dev->vb_queue_lock); 1833 mutex_init(&dev->vb_vbi_queue_lock); 1834 1835 /* Fill the video capture device struct */ 1836 *dev->vdev = au0828_video_template; 1837 dev->vdev->v4l2_dev = &dev->v4l2_dev; 1838 dev->vdev->lock = &dev->lock; 1839 dev->vdev->queue = &dev->vb_vidq; 1840 dev->vdev->queue->lock = &dev->vb_queue_lock; 1841 strcpy(dev->vdev->name, "au0828a video"); 1842 1843 /* Setup the VBI device */ 1844 *dev->vbi_dev = au0828_video_template; 1845 dev->vbi_dev->v4l2_dev = &dev->v4l2_dev; 1846 dev->vbi_dev->lock = &dev->lock; 1847 dev->vbi_dev->queue = &dev->vb_vbiq; 1848 dev->vbi_dev->queue->lock = &dev->vb_vbi_queue_lock; 1849 strcpy(dev->vbi_dev->name, "au0828a vbi"); 1850 1851 /* initialize videobuf2 stuff */ 1852 retval = au0828_vb2_setup(dev); 1853 if (retval != 0) { 1854 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n", 1855 retval); 1856 ret = -ENODEV; 1857 goto err_vbi_dev; 1858 } 1859 1860 /* Register the v4l2 device */ 1861 video_set_drvdata(dev->vdev, dev); 1862 retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER, -1); 1863 if (retval != 0) { 1864 dprintk(1, "unable to register video device (error = %d).\n", 1865 retval); 1866 ret = -ENODEV; 1867 goto err_reg_vdev; 1868 } 1869 1870 /* Register the vbi device */ 1871 video_set_drvdata(dev->vbi_dev, dev); 1872 retval = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, -1); 1873 if (retval != 0) { 1874 dprintk(1, "unable to register vbi device (error = %d).\n", 1875 retval); 1876 ret = -ENODEV; 1877 goto err_reg_vbi_dev; 1878 } 1879 1880 dprintk(1, "%s completed!\n", __func__); 1881 1882 return 0; 1883 1884 err_reg_vbi_dev: 1885 video_unregister_device(dev->vdev); 1886 err_reg_vdev: 1887 vb2_queue_release(&dev->vb_vidq); 1888 vb2_queue_release(&dev->vb_vbiq); 1889 err_vbi_dev: 1890 video_device_release(dev->vbi_dev); 1891 err_vdev: 1892 video_device_release(dev->vdev); 1893 return ret; 1894 } 1895 1896