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