kernel/drivers/media/usb/au0828/au0828-video.c

   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_buffer *vb = &buf->vb;
 306         struct vb2_queue *q = vb->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->v4l2_buf.sequence = dev->frame_count++;
 313         else
 314                 vb->v4l2_buf.sequence = dev->vbi_frame_count++;
 315
 316         vb->v4l2_buf.field = V4L2_FIELD_INTERLACED;
 317         v4l2_get_timestamp(&vb->v4l2_buf.timestamp);
 318         vb2_buffer_done(vb, 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, 0);
 535
 536         vbi_buf = dev->isoc_ctl.vbi_buf;
 537         if (vbi_buf != NULL)
 538                 vbioutp = vb2_plane_vaddr(&vbi_buf->vb, 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, 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(&buf->vb, 0);
 587
 588                                 /* As long as isoc traffic is arriving, keep
 589                                    resetting the timer */
 590                                 if (dev->vid_timeout_running)
 591                                         mod_timer(&dev->vid_timeout,
 592                                                   jiffies + (HZ / 10));
 593                                 if (dev->vbi_timeout_running)
 594                                         mod_timer(&dev->vbi_timeout,
 595                                                   jiffies + (HZ / 10));
 596                         }
 597
 598                         if (buf != NULL) {
 599                                 if (fbyte & 0x40)
 600                                         buf->top_field = 1;
 601                                 else
 602                                         buf->top_field = 0;
 603                         }
 604
 605                         if (vbi_buf != NULL) {
 606                                 if (fbyte & 0x40)
 607                                         vbi_buf->top_field = 1;
 608                                 else
 609                                         vbi_buf->top_field = 0;
 610                         }
 611
 612                         dev->vbi_read = 0;
 613                         vbi_dma_q->pos = 0;
 614                         dma_q->pos = 0;
 615                 }
 616
 617                 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
 618                 if (dev->vbi_read < vbi_field_size) {
 619                         remain  = vbi_field_size - dev->vbi_read;
 620                         if (len < remain)
 621                                 lencopy = len;
 622                         else
 623                                 lencopy = remain;
 624
 625                         if (vbi_buf != NULL)
 626                                 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
 627                                                 vbioutp, len);
 628
 629                         len -= lencopy;
 630                         p += lencopy;
 631                         dev->vbi_read += lencopy;
 632                 }
 633
 634                 if (dev->vbi_read >= vbi_field_size && buf != NULL)
 635                         au0828_copy_video(dev, dma_q, buf, p, outp, len);
 636         }
 637         return rc;
 638 }
 639
 640 static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
 641                        unsigned int *nbuffers, unsigned int *nplanes,
 642                        unsigned int sizes[], void *alloc_ctxs[])
 643 {
 644         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 645         unsigned long img_size = dev->height * dev->bytesperline;
 646         unsigned long size;
 647
 648         size = fmt ? fmt->fmt.pix.sizeimage : img_size;
 649         if (size < img_size)
 650                 return -EINVAL;
 651
 652         *nplanes = 1;
 653         sizes[0] = size;
 654
 655         return 0;
 656 }
 657
 658 static int
 659 buffer_prepare(struct vb2_buffer *vb)
 660 {
 661         struct au0828_buffer *buf = container_of(vb, struct au0828_buffer, vb);
 662         struct au0828_dev    *dev = vb2_get_drv_priv(vb->vb2_queue);
 663
 664         buf->length = dev->height * dev->bytesperline;
 665
 666         if (vb2_plane_size(vb, 0) < buf->length) {
 667                 pr_err("%s data will not fit into plane (%lu < %lu)\n",
 668                         __func__, vb2_plane_size(vb, 0), buf->length);
 669                 return -EINVAL;
 670         }
 671         vb2_set_plane_payload(&buf->vb, 0, buf->length);
 672         return 0;
 673 }
 674
 675 static void
 676 buffer_queue(struct vb2_buffer *vb)
 677 {
 678         struct au0828_buffer    *buf     = container_of(vb,
 679                                                         struct au0828_buffer,
 680                                                         vb);
 681         struct au0828_dev       *dev     = vb2_get_drv_priv(vb->vb2_queue);
 682         struct au0828_dmaqueue  *vidq    = &dev->vidq;
 683         unsigned long flags = 0;
 684
 685         buf->mem = vb2_plane_vaddr(vb, 0);
 686         buf->length = vb2_plane_size(vb, 0);
 687
 688         spin_lock_irqsave(&dev->slock, flags);
 689         list_add_tail(&buf->list, &vidq->active);
 690         spin_unlock_irqrestore(&dev->slock, flags);
 691 }
 692
 693 static int au0828_i2s_init(struct au0828_dev *dev)
 694 {
 695         /* Enable i2s mode */
 696         au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
 697         return 0;
 698 }
 699
 700 /*
 701  * Auvitek au0828 analog stream enable
 702  */
 703 static int au0828_analog_stream_enable(struct au0828_dev *d)
 704 {
 705         struct usb_interface *iface;
 706         int ret, h, w;
 707
 708         dprintk(1, "au0828_analog_stream_enable called\n");
 709
 710         iface = usb_ifnum_to_if(d->usbdev, 0);
 711         if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
 712                 dprintk(1, "Changing intf#0 to alt 5\n");
 713                 /* set au0828 interface0 to AS5 here again */
 714                 ret = usb_set_interface(d->usbdev, 0, 5);
 715                 if (ret < 0) {
 716                         pr_info("Au0828 can't set alt setting to 5!\n");
 717                         return -EBUSY;
 718                 }
 719         }
 720
 721         h = d->height / 2 + 2;
 722         w = d->width * 2;
 723
 724         au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
 725         au0828_writereg(d, 0x106, 0x00);
 726         /* set x position */
 727         au0828_writereg(d, 0x110, 0x00);
 728         au0828_writereg(d, 0x111, 0x00);
 729         au0828_writereg(d, 0x114, w & 0xff);
 730         au0828_writereg(d, 0x115, w >> 8);
 731         /* set y position */
 732         au0828_writereg(d, 0x112, 0x00);
 733         au0828_writereg(d, 0x113, 0x00);
 734         au0828_writereg(d, 0x116, h & 0xff);
 735         au0828_writereg(d, 0x117, h >> 8);
 736         au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
 737
 738         return 0;
 739 }
 740
 741 static int au0828_analog_stream_disable(struct au0828_dev *d)
 742 {
 743         dprintk(1, "au0828_analog_stream_disable called\n");
 744         au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
 745         return 0;
 746 }
 747
 748 static void au0828_analog_stream_reset(struct au0828_dev *dev)
 749 {
 750         dprintk(1, "au0828_analog_stream_reset called\n");
 751         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
 752         mdelay(30);
 753         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
 754 }
 755
 756 /*
 757  * Some operations needs to stop current streaming
 758  */
 759 static int au0828_stream_interrupt(struct au0828_dev *dev)
 760 {
 761         int ret = 0;
 762
 763         dev->stream_state = STREAM_INTERRUPT;
 764         if (dev->dev_state == DEV_DISCONNECTED)
 765                 return -ENODEV;
 766         else if (ret) {
 767                 dev->dev_state = DEV_MISCONFIGURED;
 768                 dprintk(1, "%s device is misconfigured!\n", __func__);
 769                 return ret;
 770         }
 771         return 0;
 772 }
 773
 774 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
 775 {
 776         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 777         int rc = 0;
 778
 779         dprintk(1, "au0828_start_analog_streaming called %d\n",
 780                 dev->streaming_users);
 781
 782         if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 783                 dev->frame_count = 0;
 784         else
 785                 dev->vbi_frame_count = 0;
 786
 787         if (dev->streaming_users == 0) {
 788                 /* If we were doing ac97 instead of i2s, it would go here...*/
 789                 au0828_i2s_init(dev);
 790                 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
 791                                    AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
 792                                    au0828_isoc_copy);
 793                 if (rc < 0) {
 794                         pr_info("au0828_init_isoc failed\n");
 795                         return rc;
 796                 }
 797
 798                 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 799                         v4l2_device_call_all(&dev->v4l2_dev, 0, video,
 800                                                 s_stream, 1);
 801                         dev->vid_timeout_running = 1;
 802                         mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 803                 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
 804                         dev->vbi_timeout_running = 1;
 805                         mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
 806                 }
 807         }
 808         dev->streaming_users++;
 809         return rc;
 810 }
 811
 812 static void au0828_stop_streaming(struct vb2_queue *vq)
 813 {
 814         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 815         struct au0828_dmaqueue *vidq = &dev->vidq;
 816         unsigned long flags = 0;
 817
 818         dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
 819
 820         if (dev->streaming_users-- == 1)
 821                 au0828_uninit_isoc(dev);
 822
 823         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
 824         dev->vid_timeout_running = 0;
 825         del_timer_sync(&dev->vid_timeout);
 826
 827         spin_lock_irqsave(&dev->slock, flags);
 828         if (dev->isoc_ctl.buf != NULL) {
 829                 vb2_buffer_done(&dev->isoc_ctl.buf->vb, VB2_BUF_STATE_ERROR);
 830                 dev->isoc_ctl.buf = NULL;
 831         }
 832         while (!list_empty(&vidq->active)) {
 833                 struct au0828_buffer *buf;
 834
 835                 buf = list_entry(vidq->active.next, struct au0828_buffer, list);
 836                 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
 837                 list_del(&buf->list);
 838         }
 839         spin_unlock_irqrestore(&dev->slock, flags);
 840 }
 841
 842 void au0828_stop_vbi_streaming(struct vb2_queue *vq)
 843 {
 844         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 845         struct au0828_dmaqueue *vbiq = &dev->vbiq;
 846         unsigned long flags = 0;
 847
 848         dprintk(1, "au0828_stop_vbi_streaming called %d\n",
 849                 dev->streaming_users);
 850
 851         if (dev->streaming_users-- == 1)
 852                 au0828_uninit_isoc(dev);
 853
 854         spin_lock_irqsave(&dev->slock, flags);
 855         if (dev->isoc_ctl.vbi_buf != NULL) {
 856                 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb,
 857                                 VB2_BUF_STATE_ERROR);
 858                 dev->isoc_ctl.vbi_buf = NULL;
 859         }
 860         while (!list_empty(&vbiq->active)) {
 861                 struct au0828_buffer *buf;
 862
 863                 buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
 864                 list_del(&buf->list);
 865                 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
 866         }
 867         spin_unlock_irqrestore(&dev->slock, flags);
 868
 869         dev->vbi_timeout_running = 0;
 870         del_timer_sync(&dev->vbi_timeout);
 871 }
 872
 873 static struct vb2_ops au0828_video_qops = {
 874         .queue_setup     = queue_setup,
 875         .buf_prepare     = buffer_prepare,
 876         .buf_queue       = buffer_queue,
 877         .start_streaming = au0828_start_analog_streaming,
 878         .stop_streaming  = au0828_stop_streaming,
 879         .wait_prepare    = vb2_ops_wait_prepare,
 880         .wait_finish     = vb2_ops_wait_finish,
 881 };
 882
 883 /* ------------------------------------------------------------------
 884    V4L2 interface
 885    ------------------------------------------------------------------*/
 886 /*
 887  * au0828_analog_unregister
 888  * unregister v4l2 devices
 889  */
 890 void au0828_analog_unregister(struct au0828_dev *dev)
 891 {
 892         dprintk(1, "au0828_analog_unregister called\n");
 893         mutex_lock(&au0828_sysfs_lock);
 894         video_unregister_device(&dev->vdev);
 895         video_unregister_device(&dev->vbi_dev);
 896         mutex_unlock(&au0828_sysfs_lock);
 897 }
 898
 899 /* This function ensures that video frames continue to be delivered even if
 900    the ITU-656 input isn't receiving any data (thereby preventing applications
 901    such as tvtime from hanging) */
 902 static void au0828_vid_buffer_timeout(unsigned long data)
 903 {
 904         struct au0828_dev *dev = (struct au0828_dev *) data;
 905         struct au0828_dmaqueue *dma_q = &dev->vidq;
 906         struct au0828_buffer *buf;
 907         unsigned char *vid_data;
 908         unsigned long flags = 0;
 909
 910         spin_lock_irqsave(&dev->slock, flags);
 911
 912         buf = dev->isoc_ctl.buf;
 913         if (buf != NULL) {
 914                 vid_data = vb2_plane_vaddr(&buf->vb, 0);
 915                 memset(vid_data, 0x00, buf->length); /* Blank green frame */
 916                 buffer_filled(dev, dma_q, buf);
 917         }
 918         get_next_buf(dma_q, &buf);
 919
 920         if (dev->vid_timeout_running == 1)
 921                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 922
 923         spin_unlock_irqrestore(&dev->slock, flags);
 924 }
 925
 926 static void au0828_vbi_buffer_timeout(unsigned long data)
 927 {
 928         struct au0828_dev *dev = (struct au0828_dev *) data;
 929         struct au0828_dmaqueue *dma_q = &dev->vbiq;
 930         struct au0828_buffer *buf;
 931         unsigned char *vbi_data;
 932         unsigned long flags = 0;
 933
 934         spin_lock_irqsave(&dev->slock, flags);
 935
 936         buf = dev->isoc_ctl.vbi_buf;
 937         if (buf != NULL) {
 938                 vbi_data = vb2_plane_vaddr(&buf->vb, 0);
 939                 memset(vbi_data, 0x00, buf->length);
 940                 buffer_filled(dev, dma_q, buf);
 941         }
 942         vbi_get_next_buf(dma_q, &buf);
 943
 944         if (dev->vbi_timeout_running == 1)
 945                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
 946         spin_unlock_irqrestore(&dev->slock, flags);
 947 }
 948
 949 static int au0828_v4l2_open(struct file *filp)
 950 {
 951         struct au0828_dev *dev = video_drvdata(filp);
 952         int ret;
 953
 954         dprintk(1,
 955                 "%s called std_set %d dev_state %d stream users %d users %d\n",
 956                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
 957                 dev->streaming_users, dev->users);
 958
 959         if (mutex_lock_interruptible(&dev->lock))
 960                 return -ERESTARTSYS;
 961
 962         ret = v4l2_fh_open(filp);
 963         if (ret) {
 964                 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
 965                                 __func__, ret);
 966                 mutex_unlock(&dev->lock);
 967                 return ret;
 968         }
 969
 970         if (dev->users == 0) {
 971                 au0828_analog_stream_enable(dev);
 972                 au0828_analog_stream_reset(dev);
 973                 dev->stream_state = STREAM_OFF;
 974                 dev->dev_state |= DEV_INITIALIZED;
 975         }
 976         dev->users++;
 977         mutex_unlock(&dev->lock);
 978         return ret;
 979 }
 980
 981 static int au0828_v4l2_close(struct file *filp)
 982 {
 983         int ret;
 984         struct au0828_dev *dev = video_drvdata(filp);
 985         struct video_device *vdev = video_devdata(filp);
 986
 987         dprintk(1,
 988                 "%s called std_set %d dev_state %d stream users %d users %d\n",
 989                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
 990                 dev->streaming_users, dev->users);
 991
 992         mutex_lock(&dev->lock);
 993         if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) {
 994                 /* Cancel timeout thread in case they didn't call streamoff */
 995                 dev->vid_timeout_running = 0;
 996                 del_timer_sync(&dev->vid_timeout);
 997         } else if (vdev->vfl_type == VFL_TYPE_VBI &&
 998                         dev->vbi_timeout_running) {
 999                 /* Cancel timeout thread in case they didn't call streamoff */
1000                 dev->vbi_timeout_running = 0;
1001                 del_timer_sync(&dev->vbi_timeout);
1002         }
1003
1004         if (dev->dev_state == DEV_DISCONNECTED)
1005                 goto end;
1006
1007         if (dev->users == 1) {
1008                 /* Save some power by putting tuner to sleep */
1009                 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0);
1010                 dev->std_set_in_tuner_core = 0;
1011
1012                 /* When close the device, set the usb intf0 into alt0 to free
1013                    USB bandwidth */
1014                 ret = usb_set_interface(dev->usbdev, 0, 0);
1015                 if (ret < 0)
1016                         pr_info("Au0828 can't set alternate to 0!\n");
1017         }
1018 end:
1019         _vb2_fop_release(filp, NULL);
1020         dev->users--;
1021         mutex_unlock(&dev->lock);
1022         return 0;
1023 }
1024
1025 /* Must be called with dev->lock held */
1026 static void au0828_init_tuner(struct au0828_dev *dev)
1027 {
1028         struct v4l2_frequency f = {
1029                 .frequency = dev->ctrl_freq,
1030                 .type = V4L2_TUNER_ANALOG_TV,
1031         };
1032
1033         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1034                 dev->std_set_in_tuner_core, dev->dev_state);
1035
1036         if (dev->std_set_in_tuner_core)
1037                 return;
1038         dev->std_set_in_tuner_core = 1;
1039         i2c_gate_ctrl(dev, 1);
1040         /* If we've never sent the standard in tuner core, do so now.
1041            We don't do this at device probe because we don't want to
1042            incur the cost of a firmware load */
1043         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
1044         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
1045         i2c_gate_ctrl(dev, 0);
1046 }
1047
1048 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1049                              struct v4l2_format *format)
1050 {
1051         int ret;
1052         int width = format->fmt.pix.width;
1053         int height = format->fmt.pix.height;
1054
1055         /* If they are demanding a format other than the one we support,
1056            bail out (tvtime asks for UYVY and then retries with YUYV) */
1057         if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
1058                 return -EINVAL;
1059
1060         /* format->fmt.pix.width only support 720 and height 480 */
1061         if (width != 720)
1062                 width = 720;
1063         if (height != 480)
1064                 height = 480;
1065
1066         format->fmt.pix.width = width;
1067         format->fmt.pix.height = height;
1068         format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1069         format->fmt.pix.bytesperline = width * 2;
1070         format->fmt.pix.sizeimage = width * height * 2;
1071         format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1072         format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1073         format->fmt.pix.priv = 0;
1074
1075         if (cmd == VIDIOC_TRY_FMT)
1076                 return 0;
1077
1078         /* maybe set new image format, driver current only support 720*480 */
1079         dev->width = width;
1080         dev->height = height;
1081         dev->frame_size = width * height * 2;
1082         dev->field_size = width * height;
1083         dev->bytesperline = width * 2;
1084
1085         if (dev->stream_state == STREAM_ON) {
1086                 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1087                 ret = au0828_stream_interrupt(dev);
1088                 if (ret != 0) {
1089                         dprintk(1, "error interrupting video stream!\n");
1090                         return ret;
1091                 }
1092         }
1093
1094         au0828_analog_stream_enable(dev);
1095
1096         return 0;
1097 }
1098
1099 static int vidioc_querycap(struct file *file, void  *priv,
1100                            struct v4l2_capability *cap)
1101 {
1102         struct video_device *vdev = video_devdata(file);
1103         struct au0828_dev *dev = video_drvdata(file);
1104
1105         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1106                 dev->std_set_in_tuner_core, dev->dev_state);
1107
1108         strlcpy(cap->driver, "au0828", sizeof(cap->driver));
1109         strlcpy(cap->card, dev->board.name, sizeof(cap->card));
1110         usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
1111
1112         /* set the device capabilities */
1113         cap->device_caps = V4L2_CAP_AUDIO |
1114                 V4L2_CAP_READWRITE |
1115                 V4L2_CAP_STREAMING |
1116                 V4L2_CAP_TUNER;
1117         if (vdev->vfl_type == VFL_TYPE_GRABBER)
1118                 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1119         else
1120                 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1121         cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
1122                 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
1123         return 0;
1124 }
1125
1126 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1127                                         struct v4l2_fmtdesc *f)
1128 {
1129         if (f->index)
1130                 return -EINVAL;
1131
1132         dprintk(1, "%s called\n", __func__);
1133
1134         f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1135         strcpy(f->description, "Packed YUV2");
1136
1137         f->flags = 0;
1138         f->pixelformat = V4L2_PIX_FMT_UYVY;
1139
1140         return 0;
1141 }
1142
1143 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1144                                         struct v4l2_format *f)
1145 {
1146         struct au0828_dev *dev = video_drvdata(file);
1147
1148         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1149                 dev->std_set_in_tuner_core, dev->dev_state);
1150
1151         f->fmt.pix.width = dev->width;
1152         f->fmt.pix.height = dev->height;
1153         f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1154         f->fmt.pix.bytesperline = dev->bytesperline;
1155         f->fmt.pix.sizeimage = dev->frame_size;
1156         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1157         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1158         f->fmt.pix.priv = 0;
1159         return 0;
1160 }
1161
1162 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1163                                   struct v4l2_format *f)
1164 {
1165         struct au0828_dev *dev = video_drvdata(file);
1166
1167         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1168                 dev->std_set_in_tuner_core, dev->dev_state);
1169
1170         return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1171 }
1172
1173 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1174                                 struct v4l2_format *f)
1175 {
1176         struct au0828_dev *dev = video_drvdata(file);
1177         int rc;
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         rc = check_dev(dev);
1183         if (rc < 0)
1184                 return rc;
1185
1186         if (vb2_is_busy(&dev->vb_vidq)) {
1187                 pr_info("%s queue busy\n", __func__);
1188                 rc = -EBUSY;
1189                 goto out;
1190         }
1191
1192         rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1193 out:
1194         return rc;
1195 }
1196
1197 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1198 {
1199         struct au0828_dev *dev = video_drvdata(file);
1200
1201         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1202                 dev->std_set_in_tuner_core, dev->dev_state);
1203
1204         if (norm == dev->std)
1205                 return 0;
1206
1207         if (dev->streaming_users > 0)
1208                 return -EBUSY;
1209
1210         dev->std = norm;
1211
1212         au0828_init_tuner(dev);
1213
1214         i2c_gate_ctrl(dev, 1);
1215
1216         /*
1217          * FIXME: when we support something other than 60Hz standards,
1218          * we are going to have to make the au0828 bridge adjust the size
1219          * of its capture buffer, which is currently hardcoded at 720x480
1220          */
1221
1222         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
1223
1224         i2c_gate_ctrl(dev, 0);
1225
1226         return 0;
1227 }
1228
1229 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1230 {
1231         struct au0828_dev *dev = video_drvdata(file);
1232
1233         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1234                 dev->std_set_in_tuner_core, dev->dev_state);
1235
1236         *norm = dev->std;
1237         return 0;
1238 }
1239
1240 static int vidioc_enum_input(struct file *file, void *priv,
1241                                 struct v4l2_input *input)
1242 {
1243         struct au0828_dev *dev = video_drvdata(file);
1244         unsigned int tmp;
1245
1246         static const char *inames[] = {
1247                 [AU0828_VMUX_UNDEFINED] = "Undefined",
1248                 [AU0828_VMUX_COMPOSITE] = "Composite",
1249                 [AU0828_VMUX_SVIDEO] = "S-Video",
1250                 [AU0828_VMUX_CABLE] = "Cable TV",
1251                 [AU0828_VMUX_TELEVISION] = "Television",
1252                 [AU0828_VMUX_DVB] = "DVB",
1253                 [AU0828_VMUX_DEBUG] = "tv debug"
1254         };
1255
1256         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1257                 dev->std_set_in_tuner_core, dev->dev_state);
1258
1259         tmp = input->index;
1260
1261         if (tmp >= AU0828_MAX_INPUT)
1262                 return -EINVAL;
1263         if (AUVI_INPUT(tmp).type == 0)
1264                 return -EINVAL;
1265
1266         input->index = tmp;
1267         strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
1268         if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1269             (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
1270                 input->type |= V4L2_INPUT_TYPE_TUNER;
1271                 input->audioset = 1;
1272         } else {
1273                 input->type |= V4L2_INPUT_TYPE_CAMERA;
1274                 input->audioset = 2;
1275         }
1276
1277         input->std = dev->vdev.tvnorms;
1278
1279         return 0;
1280 }
1281
1282 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1283 {
1284         struct au0828_dev *dev = video_drvdata(file);
1285
1286         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1287                 dev->std_set_in_tuner_core, dev->dev_state);
1288
1289         *i = dev->ctrl_input;
1290         return 0;
1291 }
1292
1293 static void au0828_s_input(struct au0828_dev *dev, int index)
1294 {
1295         int i;
1296
1297         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1298                 dev->std_set_in_tuner_core, dev->dev_state);
1299
1300         switch (AUVI_INPUT(index).type) {
1301         case AU0828_VMUX_SVIDEO:
1302                 dev->input_type = AU0828_VMUX_SVIDEO;
1303                 dev->ctrl_ainput = 1;
1304                 break;
1305         case AU0828_VMUX_COMPOSITE:
1306                 dev->input_type = AU0828_VMUX_COMPOSITE;
1307                 dev->ctrl_ainput = 1;
1308                 break;
1309         case AU0828_VMUX_TELEVISION:
1310                 dev->input_type = AU0828_VMUX_TELEVISION;
1311                 dev->ctrl_ainput = 0;
1312                 break;
1313         default:
1314                 dprintk(1, "unknown input type set [%d]\n",
1315                         AUVI_INPUT(index).type);
1316                 break;
1317         }
1318
1319         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1320                         AUVI_INPUT(index).vmux, 0, 0);
1321
1322         for (i = 0; i < AU0828_MAX_INPUT; i++) {
1323                 int enable = 0;
1324                 if (AUVI_INPUT(i).audio_setup == NULL)
1325                         continue;
1326
1327                 if (i == index)
1328                         enable = 1;
1329                 else
1330                         enable = 0;
1331                 if (enable) {
1332                         (AUVI_INPUT(i).audio_setup)(dev, enable);
1333                 } else {
1334                         /* Make sure we leave it turned on if some
1335                            other input is routed to this callback */
1336                         if ((AUVI_INPUT(i).audio_setup) !=
1337                             ((AUVI_INPUT(index).audio_setup))) {
1338                                 (AUVI_INPUT(i).audio_setup)(dev, enable);
1339                         }
1340                 }
1341         }
1342
1343         v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1344                         AUVI_INPUT(index).amux, 0, 0);
1345 }
1346
1347 static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1348 {
1349         struct au0828_dev *dev = video_drvdata(file);
1350
1351         dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1352                 index);
1353         if (index >= AU0828_MAX_INPUT)
1354                 return -EINVAL;
1355         if (AUVI_INPUT(index).type == 0)
1356                 return -EINVAL;
1357         dev->ctrl_input = index;
1358         au0828_s_input(dev, index);
1359         return 0;
1360 }
1361
1362 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1363 {
1364         if (a->index > 1)
1365                 return -EINVAL;
1366
1367         dprintk(1, "%s called\n", __func__);
1368
1369         if (a->index == 0)
1370                 strcpy(a->name, "Television");
1371         else
1372                 strcpy(a->name, "Line in");
1373
1374         a->capability = V4L2_AUDCAP_STEREO;
1375         return 0;
1376 }
1377
1378 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1379 {
1380         struct au0828_dev *dev = video_drvdata(file);
1381
1382         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1383                 dev->std_set_in_tuner_core, dev->dev_state);
1384
1385         a->index = dev->ctrl_ainput;
1386         if (a->index == 0)
1387                 strcpy(a->name, "Television");
1388         else
1389                 strcpy(a->name, "Line in");
1390
1391         a->capability = V4L2_AUDCAP_STEREO;
1392         return 0;
1393 }
1394
1395 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
1396 {
1397         struct au0828_dev *dev = video_drvdata(file);
1398
1399         if (a->index != dev->ctrl_ainput)
1400                 return -EINVAL;
1401
1402         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1403                 dev->std_set_in_tuner_core, dev->dev_state);
1404         return 0;
1405 }
1406
1407 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1408 {
1409         struct au0828_dev *dev = video_drvdata(file);
1410
1411         if (t->index != 0)
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
1417         strcpy(t->name, "Auvitek tuner");
1418
1419         au0828_init_tuner(dev);
1420         i2c_gate_ctrl(dev, 1);
1421         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1422         i2c_gate_ctrl(dev, 0);
1423         return 0;
1424 }
1425
1426 static int vidioc_s_tuner(struct file *file, void *priv,
1427                                 const struct v4l2_tuner *t)
1428 {
1429         struct au0828_dev *dev = video_drvdata(file);
1430
1431         if (t->index != 0)
1432                 return -EINVAL;
1433
1434         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1435                 dev->std_set_in_tuner_core, dev->dev_state);
1436
1437         au0828_init_tuner(dev);
1438         i2c_gate_ctrl(dev, 1);
1439         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1440         i2c_gate_ctrl(dev, 0);
1441
1442         dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1443                 t->afc);
1444
1445         return 0;
1446
1447 }
1448
1449 static int vidioc_g_frequency(struct file *file, void *priv,
1450                                 struct v4l2_frequency *freq)
1451 {
1452         struct au0828_dev *dev = video_drvdata(file);
1453
1454         if (freq->tuner != 0)
1455                 return -EINVAL;
1456         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1457                 dev->std_set_in_tuner_core, dev->dev_state);
1458         freq->frequency = dev->ctrl_freq;
1459         return 0;
1460 }
1461
1462 static int vidioc_s_frequency(struct file *file, void *priv,
1463                                 const struct v4l2_frequency *freq)
1464 {
1465         struct au0828_dev *dev = video_drvdata(file);
1466         struct v4l2_frequency new_freq = *freq;
1467
1468         if (freq->tuner != 0)
1469                 return -EINVAL;
1470
1471         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1472                 dev->std_set_in_tuner_core, dev->dev_state);
1473
1474         au0828_init_tuner(dev);
1475         i2c_gate_ctrl(dev, 1);
1476
1477         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1478         /* Get the actual set (and possibly clamped) frequency */
1479         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1480         dev->ctrl_freq = new_freq.frequency;
1481
1482         i2c_gate_ctrl(dev, 0);
1483
1484         au0828_analog_stream_reset(dev);
1485
1486         return 0;
1487 }
1488
1489
1490 /* RAW VBI ioctls */
1491
1492 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1493                                 struct v4l2_format *format)
1494 {
1495         struct au0828_dev *dev = video_drvdata(file);
1496
1497         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1498                 dev->std_set_in_tuner_core, dev->dev_state);
1499
1500         format->fmt.vbi.samples_per_line = dev->vbi_width;
1501         format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1502         format->fmt.vbi.offset = 0;
1503         format->fmt.vbi.flags = 0;
1504         format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1505
1506         format->fmt.vbi.count[0] = dev->vbi_height;
1507         format->fmt.vbi.count[1] = dev->vbi_height;
1508         format->fmt.vbi.start[0] = 21;
1509         format->fmt.vbi.start[1] = 284;
1510         memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
1511
1512         return 0;
1513 }
1514
1515 static int vidioc_cropcap(struct file *file, void *priv,
1516                           struct v4l2_cropcap *cc)
1517 {
1518         struct au0828_dev *dev = video_drvdata(file);
1519
1520         if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1521                 return -EINVAL;
1522
1523         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1524                 dev->std_set_in_tuner_core, dev->dev_state);
1525
1526         cc->bounds.left = 0;
1527         cc->bounds.top = 0;
1528         cc->bounds.width = dev->width;
1529         cc->bounds.height = dev->height;
1530
1531         cc->defrect = cc->bounds;
1532
1533         cc->pixelaspect.numerator = 54;
1534         cc->pixelaspect.denominator = 59;
1535
1536         return 0;
1537 }
1538
1539 #ifdef CONFIG_VIDEO_ADV_DEBUG
1540 static int vidioc_g_register(struct file *file, void *priv,
1541                              struct v4l2_dbg_register *reg)
1542 {
1543         struct au0828_dev *dev = video_drvdata(file);
1544
1545         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1546                 dev->std_set_in_tuner_core, dev->dev_state);
1547
1548         reg->val = au0828_read(dev, reg->reg);
1549         reg->size = 1;
1550         return 0;
1551 }
1552
1553 static int vidioc_s_register(struct file *file, void *priv,
1554                              const struct v4l2_dbg_register *reg)
1555 {
1556         struct au0828_dev *dev = video_drvdata(file);
1557
1558         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1559                 dev->std_set_in_tuner_core, dev->dev_state);
1560
1561         return au0828_writereg(dev, reg->reg, reg->val);
1562 }
1563 #endif
1564
1565 static int vidioc_log_status(struct file *file, void *fh)
1566 {
1567         struct video_device *vdev = video_devdata(file);
1568
1569         dprintk(1, "%s called\n", __func__);
1570
1571         v4l2_ctrl_log_status(file, fh);
1572         v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1573         return 0;
1574 }
1575
1576 void au0828_v4l2_suspend(struct au0828_dev *dev)
1577 {
1578         struct urb *urb;
1579         int i;
1580
1581         pr_info("stopping V4L2\n");
1582
1583         if (dev->stream_state == STREAM_ON) {
1584                 pr_info("stopping V4L2 active URBs\n");
1585                 au0828_analog_stream_disable(dev);
1586                 /* stop urbs */
1587                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1588                         urb = dev->isoc_ctl.urb[i];
1589                         if (urb) {
1590                                 if (!irqs_disabled())
1591                                         usb_kill_urb(urb);
1592                                 else
1593                                         usb_unlink_urb(urb);
1594                         }
1595                 }
1596         }
1597
1598         if (dev->vid_timeout_running)
1599                 del_timer_sync(&dev->vid_timeout);
1600         if (dev->vbi_timeout_running)
1601                 del_timer_sync(&dev->vbi_timeout);
1602 }
1603
1604 void au0828_v4l2_resume(struct au0828_dev *dev)
1605 {
1606         int i, rc;
1607
1608         pr_info("restarting V4L2\n");
1609
1610         if (dev->stream_state == STREAM_ON) {
1611                 au0828_stream_interrupt(dev);
1612                 au0828_init_tuner(dev);
1613         }
1614
1615         if (dev->vid_timeout_running)
1616                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1617         if (dev->vbi_timeout_running)
1618                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1619
1620         /* If we were doing ac97 instead of i2s, it would go here...*/
1621         au0828_i2s_init(dev);
1622
1623         au0828_analog_stream_enable(dev);
1624
1625         if (!(dev->stream_state == STREAM_ON)) {
1626                 au0828_analog_stream_reset(dev);
1627                 /* submit urbs */
1628                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1629                         rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
1630                         if (rc) {
1631                                 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
1632                                                i, rc);
1633                                 au0828_uninit_isoc(dev);
1634                         }
1635                 }
1636         }
1637 }
1638
1639 static struct v4l2_file_operations au0828_v4l_fops = {
1640         .owner      = THIS_MODULE,
1641         .open       = au0828_v4l2_open,
1642         .release    = au0828_v4l2_close,
1643         .read       = vb2_fop_read,
1644         .poll       = vb2_fop_poll,
1645         .mmap       = vb2_fop_mmap,
1646         .unlocked_ioctl = video_ioctl2,
1647 };
1648
1649 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1650         .vidioc_querycap            = vidioc_querycap,
1651         .vidioc_enum_fmt_vid_cap    = vidioc_enum_fmt_vid_cap,
1652         .vidioc_g_fmt_vid_cap       = vidioc_g_fmt_vid_cap,
1653         .vidioc_try_fmt_vid_cap     = vidioc_try_fmt_vid_cap,
1654         .vidioc_s_fmt_vid_cap       = vidioc_s_fmt_vid_cap,
1655         .vidioc_g_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1656         .vidioc_try_fmt_vbi_cap     = vidioc_g_fmt_vbi_cap,
1657         .vidioc_s_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1658         .vidioc_enumaudio           = vidioc_enumaudio,
1659         .vidioc_g_audio             = vidioc_g_audio,
1660         .vidioc_s_audio             = vidioc_s_audio,
1661         .vidioc_cropcap             = vidioc_cropcap,
1662
1663         .vidioc_reqbufs             = vb2_ioctl_reqbufs,
1664         .vidioc_create_bufs         = vb2_ioctl_create_bufs,
1665         .vidioc_prepare_buf         = vb2_ioctl_prepare_buf,
1666         .vidioc_querybuf            = vb2_ioctl_querybuf,
1667         .vidioc_qbuf                = vb2_ioctl_qbuf,
1668         .vidioc_dqbuf               = vb2_ioctl_dqbuf,
1669         .vidioc_expbuf               = vb2_ioctl_expbuf,
1670
1671         .vidioc_s_std               = vidioc_s_std,
1672         .vidioc_g_std               = vidioc_g_std,
1673         .vidioc_enum_input          = vidioc_enum_input,
1674         .vidioc_g_input             = vidioc_g_input,
1675         .vidioc_s_input             = vidioc_s_input,
1676
1677         .vidioc_streamon            = vb2_ioctl_streamon,
1678         .vidioc_streamoff           = vb2_ioctl_streamoff,
1679
1680         .vidioc_g_tuner             = vidioc_g_tuner,
1681         .vidioc_s_tuner             = vidioc_s_tuner,
1682         .vidioc_g_frequency         = vidioc_g_frequency,
1683         .vidioc_s_frequency         = vidioc_s_frequency,
1684 #ifdef CONFIG_VIDEO_ADV_DEBUG
1685         .vidioc_g_register          = vidioc_g_register,
1686         .vidioc_s_register          = vidioc_s_register,
1687 #endif
1688         .vidioc_log_status          = vidioc_log_status,
1689         .vidioc_subscribe_event     = v4l2_ctrl_subscribe_event,
1690         .vidioc_unsubscribe_event   = v4l2_event_unsubscribe,
1691 };
1692
1693 static const struct video_device au0828_video_template = {
1694         .fops                       = &au0828_v4l_fops,
1695         .release                    = video_device_release_empty,
1696         .ioctl_ops                  = &video_ioctl_ops,
1697         .tvnorms                    = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
1698 };
1699
1700 static int au0828_vb2_setup(struct au0828_dev *dev)
1701 {
1702         int rc;
1703         struct vb2_queue *q;
1704
1705         /* Setup Videobuf2 for Video capture */
1706         q = &dev->vb_vidq;
1707         q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1708         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1709         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1710         q->drv_priv = dev;
1711         q->buf_struct_size = sizeof(struct au0828_buffer);
1712         q->ops = &au0828_video_qops;
1713         q->mem_ops = &vb2_vmalloc_memops;
1714
1715         rc = vb2_queue_init(q);
1716         if (rc < 0)
1717                 return rc;
1718
1719         /* Setup Videobuf2 for VBI capture */
1720         q = &dev->vb_vbiq;
1721         q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1722         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1723         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1724         q->drv_priv = dev;
1725         q->buf_struct_size = sizeof(struct au0828_buffer);
1726         q->ops = &au0828_vbi_qops;
1727         q->mem_ops = &vb2_vmalloc_memops;
1728
1729         rc = vb2_queue_init(q);
1730         if (rc < 0)
1731                 return rc;
1732
1733         return 0;
1734 }
1735
1736 /**************************************************************************/
1737
1738 int au0828_analog_register(struct au0828_dev *dev,
1739                            struct usb_interface *interface)
1740 {
1741         int retval = -ENOMEM;
1742         struct usb_host_interface *iface_desc;
1743         struct usb_endpoint_descriptor *endpoint;
1744         int i, ret;
1745
1746         dprintk(1, "au0828_analog_register called for intf#%d!\n",
1747                 interface->cur_altsetting->desc.bInterfaceNumber);
1748
1749         /* set au0828 usb interface0 to as5 */
1750         retval = usb_set_interface(dev->usbdev,
1751                         interface->cur_altsetting->desc.bInterfaceNumber, 5);
1752         if (retval != 0) {
1753                 pr_info("Failure setting usb interface0 to as5\n");
1754                 return retval;
1755         }
1756
1757         /* Figure out which endpoint has the isoc interface */
1758         iface_desc = interface->cur_altsetting;
1759         for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
1760                 endpoint = &iface_desc->endpoint[i].desc;
1761                 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1762                      == USB_DIR_IN) &&
1763                     ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1764                      == USB_ENDPOINT_XFER_ISOC)) {
1765
1766                         /* we find our isoc in endpoint */
1767                         u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
1768                         dev->max_pkt_size = (tmp & 0x07ff) *
1769                                 (((tmp & 0x1800) >> 11) + 1);
1770                         dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1771                         dprintk(1,
1772                                 "Found isoc endpoint 0x%02x, max size = %d\n",
1773                                 dev->isoc_in_endpointaddr, dev->max_pkt_size);
1774                 }
1775         }
1776         if (!(dev->isoc_in_endpointaddr)) {
1777                 pr_info("Could not locate isoc endpoint\n");
1778                 return -ENODEV;
1779         }
1780
1781         init_waitqueue_head(&dev->open);
1782         spin_lock_init(&dev->slock);
1783
1784         /* init video dma queues */
1785         INIT_LIST_HEAD(&dev->vidq.active);
1786         INIT_LIST_HEAD(&dev->vbiq.active);
1787
1788         setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout,
1789                     (unsigned long)dev);
1790         setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout,
1791                     (unsigned long)dev);
1792
1793         dev->width = NTSC_STD_W;
1794         dev->height = NTSC_STD_H;
1795         dev->field_size = dev->width * dev->height;
1796         dev->frame_size = dev->field_size << 1;
1797         dev->bytesperline = dev->width << 1;
1798         dev->vbi_width = 720;
1799         dev->vbi_height = 1;
1800         dev->ctrl_ainput = 0;
1801         dev->ctrl_freq = 960;
1802         dev->std = V4L2_STD_NTSC_M;
1803         au0828_s_input(dev, 0);
1804
1805         mutex_init(&dev->vb_queue_lock);
1806         mutex_init(&dev->vb_vbi_queue_lock);
1807
1808         /* Fill the video capture device struct */
1809         dev->vdev = au0828_video_template;
1810         dev->vdev.v4l2_dev = &dev->v4l2_dev;
1811         dev->vdev.lock = &dev->lock;
1812         dev->vdev.queue = &dev->vb_vidq;
1813         dev->vdev.queue->lock = &dev->vb_queue_lock;
1814         strcpy(dev->vdev.name, "au0828a video");
1815
1816         /* Setup the VBI device */
1817         dev->vbi_dev = au0828_video_template;
1818         dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
1819         dev->vbi_dev.lock = &dev->lock;
1820         dev->vbi_dev.queue = &dev->vb_vbiq;
1821         dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
1822         strcpy(dev->vbi_dev.name, "au0828a vbi");
1823
1824         /* initialize videobuf2 stuff */
1825         retval = au0828_vb2_setup(dev);
1826         if (retval != 0) {
1827                 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
1828                         retval);
1829                 return -ENODEV;
1830         }
1831
1832         /* Register the v4l2 device */
1833         video_set_drvdata(&dev->vdev, dev);
1834         retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
1835         if (retval != 0) {
1836                 dprintk(1, "unable to register video device (error = %d).\n",
1837                         retval);
1838                 ret = -ENODEV;
1839                 goto err_reg_vdev;
1840         }
1841
1842         /* Register the vbi device */
1843         video_set_drvdata(&dev->vbi_dev, dev);
1844         retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);
1845         if (retval != 0) {
1846                 dprintk(1, "unable to register vbi device (error = %d).\n",
1847                         retval);
1848                 ret = -ENODEV;
1849                 goto err_reg_vbi_dev;
1850         }
1851
1852         dprintk(1, "%s completed!\n", __func__);
1853
1854         return 0;
1855
1856 err_reg_vbi_dev:
1857         video_unregister_device(&dev->vdev);
1858 err_reg_vdev:
1859         vb2_queue_release(&dev->vb_vidq);
1860         vb2_queue_release(&dev->vb_vbiq);
1861         return ret;
1862 }
1863