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_v4l2_buffer *vb = &buf->vb;
 306         struct vb2_queue *q = vb->vb2_buf.vb2_queue;
 307
 308         /* Advice that buffer was filled */
 309         au0828_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
 310
 311         if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 312                 vb->sequence = dev->frame_count++;
 313         else
 314                 vb->sequence = dev->vbi_frame_count++;
 315
 316         vb->field = V4L2_FIELD_INTERLACED;
 317         v4l2_get_timestamp(&vb->timestamp);
 318         vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);
 319 }
 320
 321 /*
 322  * Identify the buffer header type and properly handles
 323  */
 324 static void au0828_copy_video(struct au0828_dev *dev,
 325                               struct au0828_dmaqueue  *dma_q,
 326                               struct au0828_buffer *buf,
 327                               unsigned char *p,
 328                               unsigned char *outp, unsigned long len)
 329 {
 330         void *fieldstart, *startwrite, *startread;
 331         int  linesdone, currlinedone, offset, lencopy, remain;
 332         int bytesperline = dev->width << 1; /* Assumes 16-bit depth @@@@ */
 333
 334         if (len == 0)
 335                 return;
 336
 337         if (dma_q->pos + len > buf->length)
 338                 len = buf->length - dma_q->pos;
 339
 340         startread = p;
 341         remain = len;
 342
 343         /* Interlaces frame */
 344         if (buf->top_field)
 345                 fieldstart = outp;
 346         else
 347                 fieldstart = outp + bytesperline;
 348
 349         linesdone = dma_q->pos / bytesperline;
 350         currlinedone = dma_q->pos % bytesperline;
 351         offset = linesdone * bytesperline * 2 + currlinedone;
 352         startwrite = fieldstart + offset;
 353         lencopy = bytesperline - currlinedone;
 354         lencopy = lencopy > remain ? remain : lencopy;
 355
 356         if ((char *)startwrite + lencopy > (char *)outp + buf->length) {
 357                 au0828_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
 358                                ((char *)startwrite + lencopy) -
 359                                ((char *)outp + buf->length));
 360                 remain = (char *)outp + buf->length - (char *)startwrite;
 361                 lencopy = remain;
 362         }
 363         if (lencopy <= 0)
 364                 return;
 365         memcpy(startwrite, startread, lencopy);
 366
 367         remain -= lencopy;
 368
 369         while (remain > 0) {
 370                 startwrite += lencopy + bytesperline;
 371                 startread += lencopy;
 372                 if (bytesperline > remain)
 373                         lencopy = remain;
 374                 else
 375                         lencopy = bytesperline;
 376
 377                 if ((char *)startwrite + lencopy > (char *)outp +
 378                     buf->length) {
 379                         au0828_isocdbg("Overflow %zi bytes past buf end (2)\n",
 380                                        ((char *)startwrite + lencopy) -
 381                                        ((char *)outp + buf->length));
 382                         lencopy = remain = (char *)outp + buf->length -
 383                                            (char *)startwrite;
 384                 }
 385                 if (lencopy <= 0)
 386                         break;
 387
 388                 memcpy(startwrite, startread, lencopy);
 389
 390                 remain -= lencopy;
 391         }
 392
 393         if (offset > 1440) {
 394                 /* We have enough data to check for greenscreen */
 395                 if (outp[0] < 0x60 && outp[1440] < 0x60)
 396                         dev->greenscreen_detected = 1;
 397         }
 398
 399         dma_q->pos += len;
 400 }
 401
 402 /*
 403  * video-buf generic routine to get the next available buffer
 404  */
 405 static inline void get_next_buf(struct au0828_dmaqueue *dma_q,
 406                                 struct au0828_buffer **buf)
 407 {
 408         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vidq);
 409
 410         if (list_empty(&dma_q->active)) {
 411                 au0828_isocdbg("No active queue to serve\n");
 412                 dev->isoc_ctl.buf = NULL;
 413                 *buf = NULL;
 414                 return;
 415         }
 416
 417         /* Get the next buffer */
 418         *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 419         /* Cleans up buffer - Useful for testing for frame/URB loss */
 420         list_del(&(*buf)->list);
 421         dma_q->pos = 0;
 422         (*buf)->vb_buf = (*buf)->mem;
 423         dev->isoc_ctl.buf = *buf;
 424
 425         return;
 426 }
 427
 428 static void au0828_copy_vbi(struct au0828_dev *dev,
 429                               struct au0828_dmaqueue  *dma_q,
 430                               struct au0828_buffer *buf,
 431                               unsigned char *p,
 432                               unsigned char *outp, unsigned long len)
 433 {
 434         unsigned char *startwrite, *startread;
 435         int bytesperline;
 436         int i, j = 0;
 437
 438         if (dev == NULL) {
 439                 au0828_isocdbg("dev is null\n");
 440                 return;
 441         }
 442
 443         if (dma_q == NULL) {
 444                 au0828_isocdbg("dma_q is null\n");
 445                 return;
 446         }
 447         if (buf == NULL)
 448                 return;
 449         if (p == NULL) {
 450                 au0828_isocdbg("p is null\n");
 451                 return;
 452         }
 453         if (outp == NULL) {
 454                 au0828_isocdbg("outp is null\n");
 455                 return;
 456         }
 457
 458         bytesperline = dev->vbi_width;
 459
 460         if (dma_q->pos + len > buf->length)
 461                 len = buf->length - dma_q->pos;
 462
 463         startread = p;
 464         startwrite = outp + (dma_q->pos / 2);
 465
 466         /* Make sure the bottom field populates the second half of the frame */
 467         if (buf->top_field == 0)
 468                 startwrite += bytesperline * dev->vbi_height;
 469
 470         for (i = 0; i < len; i += 2)
 471                 startwrite[j++] = startread[i+1];
 472
 473         dma_q->pos += len;
 474 }
 475
 476
 477 /*
 478  * video-buf generic routine to get the next available VBI buffer
 479  */
 480 static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q,
 481                                     struct au0828_buffer **buf)
 482 {
 483         struct au0828_dev *dev = container_of(dma_q, struct au0828_dev, vbiq);
 484
 485         if (list_empty(&dma_q->active)) {
 486                 au0828_isocdbg("No active queue to serve\n");
 487                 dev->isoc_ctl.vbi_buf = NULL;
 488                 *buf = NULL;
 489                 return;
 490         }
 491
 492         /* Get the next buffer */
 493         *buf = list_entry(dma_q->active.next, struct au0828_buffer, list);
 494         /* Cleans up buffer - Useful for testing for frame/URB loss */
 495         list_del(&(*buf)->list);
 496         dma_q->pos = 0;
 497         (*buf)->vb_buf = (*buf)->mem;
 498         dev->isoc_ctl.vbi_buf = *buf;
 499         return;
 500 }
 501
 502 /*
 503  * Controls the isoc copy of each urb packet
 504  */
 505 static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb)
 506 {
 507         struct au0828_buffer    *buf;
 508         struct au0828_buffer    *vbi_buf;
 509         struct au0828_dmaqueue  *dma_q = urb->context;
 510         struct au0828_dmaqueue  *vbi_dma_q = &dev->vbiq;
 511         unsigned char *outp = NULL;
 512         unsigned char *vbioutp = NULL;
 513         int i, len = 0, rc = 1;
 514         unsigned char *p;
 515         unsigned char fbyte;
 516         unsigned int vbi_field_size;
 517         unsigned int remain, lencopy;
 518
 519         if (!dev)
 520                 return 0;
 521
 522         if ((dev->dev_state & DEV_DISCONNECTED) ||
 523             (dev->dev_state & DEV_MISCONFIGURED))
 524                 return 0;
 525
 526         if (urb->status < 0) {
 527                 print_err_status(dev, -1, urb->status);
 528                 if (urb->status == -ENOENT)
 529                         return 0;
 530         }
 531
 532         buf = dev->isoc_ctl.buf;
 533         if (buf != NULL)
 534                 outp = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 535
 536         vbi_buf = dev->isoc_ctl.vbi_buf;
 537         if (vbi_buf != NULL)
 538                 vbioutp = vb2_plane_vaddr(&vbi_buf->vb.vb2_buf, 0);
 539
 540         for (i = 0; i < urb->number_of_packets; i++) {
 541                 int status = urb->iso_frame_desc[i].status;
 542
 543                 if (status < 0) {
 544                         print_err_status(dev, i, status);
 545                         if (urb->iso_frame_desc[i].status != -EPROTO)
 546                                 continue;
 547                 }
 548
 549                 if (urb->iso_frame_desc[i].actual_length <= 0)
 550                         continue;
 551
 552                 if (urb->iso_frame_desc[i].actual_length >
 553                                                 dev->max_pkt_size) {
 554                         au0828_isocdbg("packet bigger than packet size");
 555                         continue;
 556                 }
 557
 558                 p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
 559                 fbyte = p[0];
 560                 len = urb->iso_frame_desc[i].actual_length - 4;
 561                 p += 4;
 562
 563                 if (fbyte & 0x80) {
 564                         len -= 4;
 565                         p += 4;
 566                         au0828_isocdbg("Video frame %s\n",
 567                                        (fbyte & 0x40) ? "odd" : "even");
 568                         if (fbyte & 0x40) {
 569                                 /* VBI */
 570                                 if (vbi_buf != NULL)
 571                                         buffer_filled(dev, vbi_dma_q, vbi_buf);
 572                                 vbi_get_next_buf(vbi_dma_q, &vbi_buf);
 573                                 if (vbi_buf == NULL)
 574                                         vbioutp = NULL;
 575                                 else
 576                                         vbioutp = vb2_plane_vaddr(
 577                                                 &vbi_buf->vb.vb2_buf, 0);
 578
 579                                 /* Video */
 580                                 if (buf != NULL)
 581                                         buffer_filled(dev, dma_q, buf);
 582                                 get_next_buf(dma_q, &buf);
 583                                 if (buf == NULL)
 584                                         outp = NULL;
 585                                 else
 586                                         outp = vb2_plane_vaddr(
 587                                                 &buf->vb.vb2_buf, 0);
 588
 589                                 /* As long as isoc traffic is arriving, keep
 590                                    resetting the timer */
 591                                 if (dev->vid_timeout_running)
 592                                         mod_timer(&dev->vid_timeout,
 593                                                   jiffies + (HZ / 10));
 594                                 if (dev->vbi_timeout_running)
 595                                         mod_timer(&dev->vbi_timeout,
 596                                                   jiffies + (HZ / 10));
 597                         }
 598
 599                         if (buf != NULL) {
 600                                 if (fbyte & 0x40)
 601                                         buf->top_field = 1;
 602                                 else
 603                                         buf->top_field = 0;
 604                         }
 605
 606                         if (vbi_buf != NULL) {
 607                                 if (fbyte & 0x40)
 608                                         vbi_buf->top_field = 1;
 609                                 else
 610                                         vbi_buf->top_field = 0;
 611                         }
 612
 613                         dev->vbi_read = 0;
 614                         vbi_dma_q->pos = 0;
 615                         dma_q->pos = 0;
 616                 }
 617
 618                 vbi_field_size = dev->vbi_width * dev->vbi_height * 2;
 619                 if (dev->vbi_read < vbi_field_size) {
 620                         remain  = vbi_field_size - dev->vbi_read;
 621                         if (len < remain)
 622                                 lencopy = len;
 623                         else
 624                                 lencopy = remain;
 625
 626                         if (vbi_buf != NULL)
 627                                 au0828_copy_vbi(dev, vbi_dma_q, vbi_buf, p,
 628                                                 vbioutp, len);
 629
 630                         len -= lencopy;
 631                         p += lencopy;
 632                         dev->vbi_read += lencopy;
 633                 }
 634
 635                 if (dev->vbi_read >= vbi_field_size && buf != NULL)
 636                         au0828_copy_video(dev, dma_q, buf, p, outp, len);
 637         }
 638         return rc;
 639 }
 640
 641 static int queue_setup(struct vb2_queue *vq, const void *parg,
 642                        unsigned int *nbuffers, unsigned int *nplanes,
 643                        unsigned int sizes[], void *alloc_ctxs[])
 644 {
 645         const struct v4l2_format *fmt = parg;
 646         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 647         unsigned long img_size = dev->height * dev->bytesperline;
 648         unsigned long size;
 649
 650         size = fmt ? fmt->fmt.pix.sizeimage : img_size;
 651         if (size < img_size)
 652                 return -EINVAL;
 653
 654         *nplanes = 1;
 655         sizes[0] = size;
 656
 657         return 0;
 658 }
 659
 660 static int
 661 buffer_prepare(struct vb2_buffer *vb)
 662 {
 663         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 664         struct au0828_buffer *buf = container_of(vbuf,
 665                                 struct au0828_buffer, vb);
 666         struct au0828_dev    *dev = vb2_get_drv_priv(vb->vb2_queue);
 667
 668         buf->length = dev->height * dev->bytesperline;
 669
 670         if (vb2_plane_size(vb, 0) < buf->length) {
 671                 pr_err("%s data will not fit into plane (%lu < %lu)\n",
 672                         __func__, vb2_plane_size(vb, 0), buf->length);
 673                 return -EINVAL;
 674         }
 675         vb2_set_plane_payload(&buf->vb.vb2_buf, 0, buf->length);
 676         return 0;
 677 }
 678
 679 static void
 680 buffer_queue(struct vb2_buffer *vb)
 681 {
 682         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 683         struct au0828_buffer    *buf     = container_of(vbuf,
 684                                                         struct au0828_buffer,
 685                                                         vb);
 686         struct au0828_dev       *dev     = vb2_get_drv_priv(vb->vb2_queue);
 687         struct au0828_dmaqueue  *vidq    = &dev->vidq;
 688         unsigned long flags = 0;
 689
 690         buf->mem = vb2_plane_vaddr(vb, 0);
 691         buf->length = vb2_plane_size(vb, 0);
 692
 693         spin_lock_irqsave(&dev->slock, flags);
 694         list_add_tail(&buf->list, &vidq->active);
 695         spin_unlock_irqrestore(&dev->slock, flags);
 696 }
 697
 698 static int au0828_i2s_init(struct au0828_dev *dev)
 699 {
 700         /* Enable i2s mode */
 701         au0828_writereg(dev, AU0828_AUDIOCTRL_50C, 0x01);
 702         return 0;
 703 }
 704
 705 /*
 706  * Auvitek au0828 analog stream enable
 707  */
 708 static int au0828_analog_stream_enable(struct au0828_dev *d)
 709 {
 710         struct usb_interface *iface;
 711         int ret, h, w;
 712
 713         dprintk(1, "au0828_analog_stream_enable called\n");
 714
 715         iface = usb_ifnum_to_if(d->usbdev, 0);
 716         if (iface && iface->cur_altsetting->desc.bAlternateSetting != 5) {
 717                 dprintk(1, "Changing intf#0 to alt 5\n");
 718                 /* set au0828 interface0 to AS5 here again */
 719                 ret = usb_set_interface(d->usbdev, 0, 5);
 720                 if (ret < 0) {
 721                         pr_info("Au0828 can't set alt setting to 5!\n");
 722                         return -EBUSY;
 723                 }
 724         }
 725
 726         h = d->height / 2 + 2;
 727         w = d->width * 2;
 728
 729         au0828_writereg(d, AU0828_SENSORCTRL_VBI_103, 0x00);
 730         au0828_writereg(d, 0x106, 0x00);
 731         /* set x position */
 732         au0828_writereg(d, 0x110, 0x00);
 733         au0828_writereg(d, 0x111, 0x00);
 734         au0828_writereg(d, 0x114, w & 0xff);
 735         au0828_writereg(d, 0x115, w >> 8);
 736         /* set y position */
 737         au0828_writereg(d, 0x112, 0x00);
 738         au0828_writereg(d, 0x113, 0x00);
 739         au0828_writereg(d, 0x116, h & 0xff);
 740         au0828_writereg(d, 0x117, h >> 8);
 741         au0828_writereg(d, AU0828_SENSORCTRL_100, 0xb3);
 742
 743         return 0;
 744 }
 745
 746 static int au0828_analog_stream_disable(struct au0828_dev *d)
 747 {
 748         dprintk(1, "au0828_analog_stream_disable called\n");
 749         au0828_writereg(d, AU0828_SENSORCTRL_100, 0x0);
 750         return 0;
 751 }
 752
 753 static void au0828_analog_stream_reset(struct au0828_dev *dev)
 754 {
 755         dprintk(1, "au0828_analog_stream_reset called\n");
 756         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0x0);
 757         mdelay(30);
 758         au0828_writereg(dev, AU0828_SENSORCTRL_100, 0xb3);
 759 }
 760
 761 /*
 762  * Some operations needs to stop current streaming
 763  */
 764 static int au0828_stream_interrupt(struct au0828_dev *dev)
 765 {
 766         int ret = 0;
 767
 768         dev->stream_state = STREAM_INTERRUPT;
 769         if (dev->dev_state == DEV_DISCONNECTED)
 770                 return -ENODEV;
 771         else if (ret) {
 772                 dev->dev_state = DEV_MISCONFIGURED;
 773                 dprintk(1, "%s device is misconfigured!\n", __func__);
 774                 return ret;
 775         }
 776         return 0;
 777 }
 778
 779 int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
 780 {
 781         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 782         int rc = 0;
 783
 784         dprintk(1, "au0828_start_analog_streaming called %d\n",
 785                 dev->streaming_users);
 786
 787         if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
 788                 dev->frame_count = 0;
 789         else
 790                 dev->vbi_frame_count = 0;
 791
 792         if (dev->streaming_users == 0) {
 793                 /* If we were doing ac97 instead of i2s, it would go here...*/
 794                 au0828_i2s_init(dev);
 795                 rc = au0828_init_isoc(dev, AU0828_ISO_PACKETS_PER_URB,
 796                                    AU0828_MAX_ISO_BUFS, dev->max_pkt_size,
 797                                    au0828_isoc_copy);
 798                 if (rc < 0) {
 799                         pr_info("au0828_init_isoc failed\n");
 800                         return rc;
 801                 }
 802
 803                 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 804                         v4l2_device_call_all(&dev->v4l2_dev, 0, video,
 805                                                 s_stream, 1);
 806                         dev->vid_timeout_running = 1;
 807                         mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 808                 } else if (vq->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
 809                         dev->vbi_timeout_running = 1;
 810                         mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
 811                 }
 812         }
 813         dev->streaming_users++;
 814         return rc;
 815 }
 816
 817 static void au0828_stop_streaming(struct vb2_queue *vq)
 818 {
 819         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 820         struct au0828_dmaqueue *vidq = &dev->vidq;
 821         unsigned long flags = 0;
 822
 823         dprintk(1, "au0828_stop_streaming called %d\n", dev->streaming_users);
 824
 825         if (dev->streaming_users-- == 1)
 826                 au0828_uninit_isoc(dev);
 827
 828         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_stream, 0);
 829         dev->vid_timeout_running = 0;
 830         del_timer_sync(&dev->vid_timeout);
 831
 832         spin_lock_irqsave(&dev->slock, flags);
 833         if (dev->isoc_ctl.buf != NULL) {
 834                 vb2_buffer_done(&dev->isoc_ctl.buf->vb.vb2_buf,
 835                                 VB2_BUF_STATE_ERROR);
 836                 dev->isoc_ctl.buf = NULL;
 837         }
 838         while (!list_empty(&vidq->active)) {
 839                 struct au0828_buffer *buf;
 840
 841                 buf = list_entry(vidq->active.next, struct au0828_buffer, list);
 842                 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 843                 list_del(&buf->list);
 844         }
 845         spin_unlock_irqrestore(&dev->slock, flags);
 846 }
 847
 848 void au0828_stop_vbi_streaming(struct vb2_queue *vq)
 849 {
 850         struct au0828_dev *dev = vb2_get_drv_priv(vq);
 851         struct au0828_dmaqueue *vbiq = &dev->vbiq;
 852         unsigned long flags = 0;
 853
 854         dprintk(1, "au0828_stop_vbi_streaming called %d\n",
 855                 dev->streaming_users);
 856
 857         if (dev->streaming_users-- == 1)
 858                 au0828_uninit_isoc(dev);
 859
 860         spin_lock_irqsave(&dev->slock, flags);
 861         if (dev->isoc_ctl.vbi_buf != NULL) {
 862                 vb2_buffer_done(&dev->isoc_ctl.vbi_buf->vb.vb2_buf,
 863                                 VB2_BUF_STATE_ERROR);
 864                 dev->isoc_ctl.vbi_buf = NULL;
 865         }
 866         while (!list_empty(&vbiq->active)) {
 867                 struct au0828_buffer *buf;
 868
 869                 buf = list_entry(vbiq->active.next, struct au0828_buffer, list);
 870                 list_del(&buf->list);
 871                 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 872         }
 873         spin_unlock_irqrestore(&dev->slock, flags);
 874
 875         dev->vbi_timeout_running = 0;
 876         del_timer_sync(&dev->vbi_timeout);
 877 }
 878
 879 static struct vb2_ops au0828_video_qops = {
 880         .queue_setup     = queue_setup,
 881         .buf_prepare     = buffer_prepare,
 882         .buf_queue       = buffer_queue,
 883         .start_streaming = au0828_start_analog_streaming,
 884         .stop_streaming  = au0828_stop_streaming,
 885         .wait_prepare    = vb2_ops_wait_prepare,
 886         .wait_finish     = vb2_ops_wait_finish,
 887 };
 888
 889 /* ------------------------------------------------------------------
 890    V4L2 interface
 891    ------------------------------------------------------------------*/
 892 /*
 893  * au0828_analog_unregister
 894  * unregister v4l2 devices
 895  */
 896 void au0828_analog_unregister(struct au0828_dev *dev)
 897 {
 898         dprintk(1, "au0828_analog_unregister called\n");
 899         mutex_lock(&au0828_sysfs_lock);
 900         video_unregister_device(&dev->vdev);
 901         video_unregister_device(&dev->vbi_dev);
 902         mutex_unlock(&au0828_sysfs_lock);
 903 }
 904
 905 /* This function ensures that video frames continue to be delivered even if
 906    the ITU-656 input isn't receiving any data (thereby preventing applications
 907    such as tvtime from hanging) */
 908 static void au0828_vid_buffer_timeout(unsigned long data)
 909 {
 910         struct au0828_dev *dev = (struct au0828_dev *) data;
 911         struct au0828_dmaqueue *dma_q = &dev->vidq;
 912         struct au0828_buffer *buf;
 913         unsigned char *vid_data;
 914         unsigned long flags = 0;
 915
 916         spin_lock_irqsave(&dev->slock, flags);
 917
 918         buf = dev->isoc_ctl.buf;
 919         if (buf != NULL) {
 920                 vid_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 921                 memset(vid_data, 0x00, buf->length); /* Blank green frame */
 922                 buffer_filled(dev, dma_q, buf);
 923         }
 924         get_next_buf(dma_q, &buf);
 925
 926         if (dev->vid_timeout_running == 1)
 927                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
 928
 929         spin_unlock_irqrestore(&dev->slock, flags);
 930 }
 931
 932 static void au0828_vbi_buffer_timeout(unsigned long data)
 933 {
 934         struct au0828_dev *dev = (struct au0828_dev *) data;
 935         struct au0828_dmaqueue *dma_q = &dev->vbiq;
 936         struct au0828_buffer *buf;
 937         unsigned char *vbi_data;
 938         unsigned long flags = 0;
 939
 940         spin_lock_irqsave(&dev->slock, flags);
 941
 942         buf = dev->isoc_ctl.vbi_buf;
 943         if (buf != NULL) {
 944                 vbi_data = vb2_plane_vaddr(&buf->vb.vb2_buf, 0);
 945                 memset(vbi_data, 0x00, buf->length);
 946                 buffer_filled(dev, dma_q, buf);
 947         }
 948         vbi_get_next_buf(dma_q, &buf);
 949
 950         if (dev->vbi_timeout_running == 1)
 951                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
 952         spin_unlock_irqrestore(&dev->slock, flags);
 953 }
 954
 955 static int au0828_v4l2_open(struct file *filp)
 956 {
 957         struct au0828_dev *dev = video_drvdata(filp);
 958         int ret;
 959
 960         dprintk(1,
 961                 "%s called std_set %d dev_state %d stream users %d users %d\n",
 962                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
 963                 dev->streaming_users, dev->users);
 964
 965         if (mutex_lock_interruptible(&dev->lock))
 966                 return -ERESTARTSYS;
 967
 968         ret = v4l2_fh_open(filp);
 969         if (ret) {
 970                 au0828_isocdbg("%s: v4l2_fh_open() returned error %d\n",
 971                                 __func__, ret);
 972                 mutex_unlock(&dev->lock);
 973                 return ret;
 974         }
 975
 976         if (dev->users == 0) {
 977                 au0828_analog_stream_enable(dev);
 978                 au0828_analog_stream_reset(dev);
 979                 dev->stream_state = STREAM_OFF;
 980                 dev->dev_state |= DEV_INITIALIZED;
 981         }
 982         dev->users++;
 983         mutex_unlock(&dev->lock);
 984         return ret;
 985 }
 986
 987 static int au0828_v4l2_close(struct file *filp)
 988 {
 989         int ret;
 990         struct au0828_dev *dev = video_drvdata(filp);
 991         struct video_device *vdev = video_devdata(filp);
 992
 993         dprintk(1,
 994                 "%s called std_set %d dev_state %d stream users %d users %d\n",
 995                 __func__, dev->std_set_in_tuner_core, dev->dev_state,
 996                 dev->streaming_users, dev->users);
 997
 998         mutex_lock(&dev->lock);
 999         if (vdev->vfl_type == VFL_TYPE_GRABBER && dev->vid_timeout_running) {
1000                 /* Cancel timeout thread in case they didn't call streamoff */
1001                 dev->vid_timeout_running = 0;
1002                 del_timer_sync(&dev->vid_timeout);
1003         } else if (vdev->vfl_type == VFL_TYPE_VBI &&
1004                         dev->vbi_timeout_running) {
1005                 /* Cancel timeout thread in case they didn't call streamoff */
1006                 dev->vbi_timeout_running = 0;
1007                 del_timer_sync(&dev->vbi_timeout);
1008         }
1009
1010         if (dev->dev_state == DEV_DISCONNECTED)
1011                 goto end;
1012
1013         if (dev->users == 1) {
1014                 /* Save some power by putting tuner to sleep */
1015                 v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0);
1016                 dev->std_set_in_tuner_core = 0;
1017
1018                 /* When close the device, set the usb intf0 into alt0 to free
1019                    USB bandwidth */
1020                 ret = usb_set_interface(dev->usbdev, 0, 0);
1021                 if (ret < 0)
1022                         pr_info("Au0828 can't set alternate to 0!\n");
1023         }
1024 end:
1025         _vb2_fop_release(filp, NULL);
1026         dev->users--;
1027         mutex_unlock(&dev->lock);
1028         return 0;
1029 }
1030
1031 /* Must be called with dev->lock held */
1032 static void au0828_init_tuner(struct au0828_dev *dev)
1033 {
1034         struct v4l2_frequency f = {
1035                 .frequency = dev->ctrl_freq,
1036                 .type = V4L2_TUNER_ANALOG_TV,
1037         };
1038
1039         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1040                 dev->std_set_in_tuner_core, dev->dev_state);
1041
1042         if (dev->std_set_in_tuner_core)
1043                 return;
1044         dev->std_set_in_tuner_core = 1;
1045         i2c_gate_ctrl(dev, 1);
1046         /* If we've never sent the standard in tuner core, do so now.
1047            We don't do this at device probe because we don't want to
1048            incur the cost of a firmware load */
1049         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, dev->std);
1050         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
1051         i2c_gate_ctrl(dev, 0);
1052 }
1053
1054 static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd,
1055                              struct v4l2_format *format)
1056 {
1057         int ret;
1058         int width = format->fmt.pix.width;
1059         int height = format->fmt.pix.height;
1060
1061         /* If they are demanding a format other than the one we support,
1062            bail out (tvtime asks for UYVY and then retries with YUYV) */
1063         if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_UYVY)
1064                 return -EINVAL;
1065
1066         /* format->fmt.pix.width only support 720 and height 480 */
1067         if (width != 720)
1068                 width = 720;
1069         if (height != 480)
1070                 height = 480;
1071
1072         format->fmt.pix.width = width;
1073         format->fmt.pix.height = height;
1074         format->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1075         format->fmt.pix.bytesperline = width * 2;
1076         format->fmt.pix.sizeimage = width * height * 2;
1077         format->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1078         format->fmt.pix.field = V4L2_FIELD_INTERLACED;
1079         format->fmt.pix.priv = 0;
1080
1081         if (cmd == VIDIOC_TRY_FMT)
1082                 return 0;
1083
1084         /* maybe set new image format, driver current only support 720*480 */
1085         dev->width = width;
1086         dev->height = height;
1087         dev->frame_size = width * height * 2;
1088         dev->field_size = width * height;
1089         dev->bytesperline = width * 2;
1090
1091         if (dev->stream_state == STREAM_ON) {
1092                 dprintk(1, "VIDIOC_SET_FMT: interrupting stream!\n");
1093                 ret = au0828_stream_interrupt(dev);
1094                 if (ret != 0) {
1095                         dprintk(1, "error interrupting video stream!\n");
1096                         return ret;
1097                 }
1098         }
1099
1100         au0828_analog_stream_enable(dev);
1101
1102         return 0;
1103 }
1104
1105 static int vidioc_querycap(struct file *file, void  *priv,
1106                            struct v4l2_capability *cap)
1107 {
1108         struct video_device *vdev = video_devdata(file);
1109         struct au0828_dev *dev = video_drvdata(file);
1110
1111         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1112                 dev->std_set_in_tuner_core, dev->dev_state);
1113
1114         strlcpy(cap->driver, "au0828", sizeof(cap->driver));
1115         strlcpy(cap->card, dev->board.name, sizeof(cap->card));
1116         usb_make_path(dev->usbdev, cap->bus_info, sizeof(cap->bus_info));
1117
1118         /* set the device capabilities */
1119         cap->device_caps = V4L2_CAP_AUDIO |
1120                 V4L2_CAP_READWRITE |
1121                 V4L2_CAP_STREAMING |
1122                 V4L2_CAP_TUNER;
1123         if (vdev->vfl_type == VFL_TYPE_GRABBER)
1124                 cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE;
1125         else
1126                 cap->device_caps |= V4L2_CAP_VBI_CAPTURE;
1127         cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
1128                 V4L2_CAP_VBI_CAPTURE | V4L2_CAP_VIDEO_CAPTURE;
1129         return 0;
1130 }
1131
1132 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1133                                         struct v4l2_fmtdesc *f)
1134 {
1135         if (f->index)
1136                 return -EINVAL;
1137
1138         dprintk(1, "%s called\n", __func__);
1139
1140         f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1141         strcpy(f->description, "Packed YUV2");
1142
1143         f->flags = 0;
1144         f->pixelformat = V4L2_PIX_FMT_UYVY;
1145
1146         return 0;
1147 }
1148
1149 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1150                                         struct v4l2_format *f)
1151 {
1152         struct au0828_dev *dev = video_drvdata(file);
1153
1154         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1155                 dev->std_set_in_tuner_core, dev->dev_state);
1156
1157         f->fmt.pix.width = dev->width;
1158         f->fmt.pix.height = dev->height;
1159         f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1160         f->fmt.pix.bytesperline = dev->bytesperline;
1161         f->fmt.pix.sizeimage = dev->frame_size;
1162         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* NTSC/PAL */
1163         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1164         f->fmt.pix.priv = 0;
1165         return 0;
1166 }
1167
1168 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1169                                   struct v4l2_format *f)
1170 {
1171         struct au0828_dev *dev = video_drvdata(file);
1172
1173         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1174                 dev->std_set_in_tuner_core, dev->dev_state);
1175
1176         return au0828_set_format(dev, VIDIOC_TRY_FMT, f);
1177 }
1178
1179 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
1180                                 struct v4l2_format *f)
1181 {
1182         struct au0828_dev *dev = video_drvdata(file);
1183         int rc;
1184
1185         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1186                 dev->std_set_in_tuner_core, dev->dev_state);
1187
1188         rc = check_dev(dev);
1189         if (rc < 0)
1190                 return rc;
1191
1192         if (vb2_is_busy(&dev->vb_vidq)) {
1193                 pr_info("%s queue busy\n", __func__);
1194                 rc = -EBUSY;
1195                 goto out;
1196         }
1197
1198         rc = au0828_set_format(dev, VIDIOC_S_FMT, f);
1199 out:
1200         return rc;
1201 }
1202
1203 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm)
1204 {
1205         struct au0828_dev *dev = video_drvdata(file);
1206
1207         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1208                 dev->std_set_in_tuner_core, dev->dev_state);
1209
1210         if (norm == dev->std)
1211                 return 0;
1212
1213         if (dev->streaming_users > 0)
1214                 return -EBUSY;
1215
1216         dev->std = norm;
1217
1218         au0828_init_tuner(dev);
1219
1220         i2c_gate_ctrl(dev, 1);
1221
1222         /*
1223          * FIXME: when we support something other than 60Hz standards,
1224          * we are going to have to make the au0828 bridge adjust the size
1225          * of its capture buffer, which is currently hardcoded at 720x480
1226          */
1227
1228         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_std, norm);
1229
1230         i2c_gate_ctrl(dev, 0);
1231
1232         return 0;
1233 }
1234
1235 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm)
1236 {
1237         struct au0828_dev *dev = video_drvdata(file);
1238
1239         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1240                 dev->std_set_in_tuner_core, dev->dev_state);
1241
1242         *norm = dev->std;
1243         return 0;
1244 }
1245
1246 static int vidioc_enum_input(struct file *file, void *priv,
1247                                 struct v4l2_input *input)
1248 {
1249         struct au0828_dev *dev = video_drvdata(file);
1250         unsigned int tmp;
1251
1252         static const char *inames[] = {
1253                 [AU0828_VMUX_UNDEFINED] = "Undefined",
1254                 [AU0828_VMUX_COMPOSITE] = "Composite",
1255                 [AU0828_VMUX_SVIDEO] = "S-Video",
1256                 [AU0828_VMUX_CABLE] = "Cable TV",
1257                 [AU0828_VMUX_TELEVISION] = "Television",
1258                 [AU0828_VMUX_DVB] = "DVB",
1259                 [AU0828_VMUX_DEBUG] = "tv debug"
1260         };
1261
1262         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1263                 dev->std_set_in_tuner_core, dev->dev_state);
1264
1265         tmp = input->index;
1266
1267         if (tmp >= AU0828_MAX_INPUT)
1268                 return -EINVAL;
1269         if (AUVI_INPUT(tmp).type == 0)
1270                 return -EINVAL;
1271
1272         input->index = tmp;
1273         strcpy(input->name, inames[AUVI_INPUT(tmp).type]);
1274         if ((AUVI_INPUT(tmp).type == AU0828_VMUX_TELEVISION) ||
1275             (AUVI_INPUT(tmp).type == AU0828_VMUX_CABLE)) {
1276                 input->type |= V4L2_INPUT_TYPE_TUNER;
1277                 input->audioset = 1;
1278         } else {
1279                 input->type |= V4L2_INPUT_TYPE_CAMERA;
1280                 input->audioset = 2;
1281         }
1282
1283         input->std = dev->vdev.tvnorms;
1284
1285         return 0;
1286 }
1287
1288 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1289 {
1290         struct au0828_dev *dev = video_drvdata(file);
1291
1292         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1293                 dev->std_set_in_tuner_core, dev->dev_state);
1294
1295         *i = dev->ctrl_input;
1296         return 0;
1297 }
1298
1299 static void au0828_s_input(struct au0828_dev *dev, int index)
1300 {
1301         int i;
1302
1303         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1304                 dev->std_set_in_tuner_core, dev->dev_state);
1305
1306         switch (AUVI_INPUT(index).type) {
1307         case AU0828_VMUX_SVIDEO:
1308                 dev->input_type = AU0828_VMUX_SVIDEO;
1309                 dev->ctrl_ainput = 1;
1310                 break;
1311         case AU0828_VMUX_COMPOSITE:
1312                 dev->input_type = AU0828_VMUX_COMPOSITE;
1313                 dev->ctrl_ainput = 1;
1314                 break;
1315         case AU0828_VMUX_TELEVISION:
1316                 dev->input_type = AU0828_VMUX_TELEVISION;
1317                 dev->ctrl_ainput = 0;
1318                 break;
1319         default:
1320                 dprintk(1, "unknown input type set [%d]\n",
1321                         AUVI_INPUT(index).type);
1322                 break;
1323         }
1324
1325         v4l2_device_call_all(&dev->v4l2_dev, 0, video, s_routing,
1326                         AUVI_INPUT(index).vmux, 0, 0);
1327
1328         for (i = 0; i < AU0828_MAX_INPUT; i++) {
1329                 int enable = 0;
1330                 if (AUVI_INPUT(i).audio_setup == NULL)
1331                         continue;
1332
1333                 if (i == index)
1334                         enable = 1;
1335                 else
1336                         enable = 0;
1337                 if (enable) {
1338                         (AUVI_INPUT(i).audio_setup)(dev, enable);
1339                 } else {
1340                         /* Make sure we leave it turned on if some
1341                            other input is routed to this callback */
1342                         if ((AUVI_INPUT(i).audio_setup) !=
1343                             ((AUVI_INPUT(index).audio_setup))) {
1344                                 (AUVI_INPUT(i).audio_setup)(dev, enable);
1345                         }
1346                 }
1347         }
1348
1349         v4l2_device_call_all(&dev->v4l2_dev, 0, audio, s_routing,
1350                         AUVI_INPUT(index).amux, 0, 0);
1351 }
1352
1353 static int vidioc_s_input(struct file *file, void *priv, unsigned int index)
1354 {
1355         struct au0828_dev *dev = video_drvdata(file);
1356
1357         dprintk(1, "VIDIOC_S_INPUT in function %s, input=%d\n", __func__,
1358                 index);
1359         if (index >= AU0828_MAX_INPUT)
1360                 return -EINVAL;
1361         if (AUVI_INPUT(index).type == 0)
1362                 return -EINVAL;
1363         dev->ctrl_input = index;
1364         au0828_s_input(dev, index);
1365         return 0;
1366 }
1367
1368 static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a)
1369 {
1370         if (a->index > 1)
1371                 return -EINVAL;
1372
1373         dprintk(1, "%s called\n", __func__);
1374
1375         if (a->index == 0)
1376                 strcpy(a->name, "Television");
1377         else
1378                 strcpy(a->name, "Line in");
1379
1380         a->capability = V4L2_AUDCAP_STEREO;
1381         return 0;
1382 }
1383
1384 static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1385 {
1386         struct au0828_dev *dev = video_drvdata(file);
1387
1388         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1389                 dev->std_set_in_tuner_core, dev->dev_state);
1390
1391         a->index = dev->ctrl_ainput;
1392         if (a->index == 0)
1393                 strcpy(a->name, "Television");
1394         else
1395                 strcpy(a->name, "Line in");
1396
1397         a->capability = V4L2_AUDCAP_STEREO;
1398         return 0;
1399 }
1400
1401 static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
1402 {
1403         struct au0828_dev *dev = video_drvdata(file);
1404
1405         if (a->index != dev->ctrl_ainput)
1406                 return -EINVAL;
1407
1408         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1409                 dev->std_set_in_tuner_core, dev->dev_state);
1410         return 0;
1411 }
1412
1413 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1414 {
1415         struct au0828_dev *dev = video_drvdata(file);
1416
1417         if (t->index != 0)
1418                 return -EINVAL;
1419
1420         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1421                 dev->std_set_in_tuner_core, dev->dev_state);
1422
1423         strcpy(t->name, "Auvitek tuner");
1424
1425         au0828_init_tuner(dev);
1426         i2c_gate_ctrl(dev, 1);
1427         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
1428         i2c_gate_ctrl(dev, 0);
1429         return 0;
1430 }
1431
1432 static int vidioc_s_tuner(struct file *file, void *priv,
1433                                 const struct v4l2_tuner *t)
1434 {
1435         struct au0828_dev *dev = video_drvdata(file);
1436
1437         if (t->index != 0)
1438                 return -EINVAL;
1439
1440         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1441                 dev->std_set_in_tuner_core, dev->dev_state);
1442
1443         au0828_init_tuner(dev);
1444         i2c_gate_ctrl(dev, 1);
1445         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
1446         i2c_gate_ctrl(dev, 0);
1447
1448         dprintk(1, "VIDIOC_S_TUNER: signal = %x, afc = %x\n", t->signal,
1449                 t->afc);
1450
1451         return 0;
1452
1453 }
1454
1455 static int vidioc_g_frequency(struct file *file, void *priv,
1456                                 struct v4l2_frequency *freq)
1457 {
1458         struct au0828_dev *dev = video_drvdata(file);
1459
1460         if (freq->tuner != 0)
1461                 return -EINVAL;
1462         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1463                 dev->std_set_in_tuner_core, dev->dev_state);
1464         freq->frequency = dev->ctrl_freq;
1465         return 0;
1466 }
1467
1468 static int vidioc_s_frequency(struct file *file, void *priv,
1469                                 const struct v4l2_frequency *freq)
1470 {
1471         struct au0828_dev *dev = video_drvdata(file);
1472         struct v4l2_frequency new_freq = *freq;
1473
1474         if (freq->tuner != 0)
1475                 return -EINVAL;
1476
1477         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1478                 dev->std_set_in_tuner_core, dev->dev_state);
1479
1480         au0828_init_tuner(dev);
1481         i2c_gate_ctrl(dev, 1);
1482
1483         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, freq);
1484         /* Get the actual set (and possibly clamped) frequency */
1485         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, &new_freq);
1486         dev->ctrl_freq = new_freq.frequency;
1487
1488         i2c_gate_ctrl(dev, 0);
1489
1490         au0828_analog_stream_reset(dev);
1491
1492         return 0;
1493 }
1494
1495
1496 /* RAW VBI ioctls */
1497
1498 static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv,
1499                                 struct v4l2_format *format)
1500 {
1501         struct au0828_dev *dev = video_drvdata(file);
1502
1503         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1504                 dev->std_set_in_tuner_core, dev->dev_state);
1505
1506         format->fmt.vbi.samples_per_line = dev->vbi_width;
1507         format->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1508         format->fmt.vbi.offset = 0;
1509         format->fmt.vbi.flags = 0;
1510         format->fmt.vbi.sampling_rate = 6750000 * 4 / 2;
1511
1512         format->fmt.vbi.count[0] = dev->vbi_height;
1513         format->fmt.vbi.count[1] = dev->vbi_height;
1514         format->fmt.vbi.start[0] = 21;
1515         format->fmt.vbi.start[1] = 284;
1516         memset(format->fmt.vbi.reserved, 0, sizeof(format->fmt.vbi.reserved));
1517
1518         return 0;
1519 }
1520
1521 static int vidioc_cropcap(struct file *file, void *priv,
1522                           struct v4l2_cropcap *cc)
1523 {
1524         struct au0828_dev *dev = video_drvdata(file);
1525
1526         if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1527                 return -EINVAL;
1528
1529         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1530                 dev->std_set_in_tuner_core, dev->dev_state);
1531
1532         cc->bounds.left = 0;
1533         cc->bounds.top = 0;
1534         cc->bounds.width = dev->width;
1535         cc->bounds.height = dev->height;
1536
1537         cc->defrect = cc->bounds;
1538
1539         cc->pixelaspect.numerator = 54;
1540         cc->pixelaspect.denominator = 59;
1541
1542         return 0;
1543 }
1544
1545 #ifdef CONFIG_VIDEO_ADV_DEBUG
1546 static int vidioc_g_register(struct file *file, void *priv,
1547                              struct v4l2_dbg_register *reg)
1548 {
1549         struct au0828_dev *dev = video_drvdata(file);
1550
1551         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1552                 dev->std_set_in_tuner_core, dev->dev_state);
1553
1554         reg->val = au0828_read(dev, reg->reg);
1555         reg->size = 1;
1556         return 0;
1557 }
1558
1559 static int vidioc_s_register(struct file *file, void *priv,
1560                              const struct v4l2_dbg_register *reg)
1561 {
1562         struct au0828_dev *dev = video_drvdata(file);
1563
1564         dprintk(1, "%s called std_set %d dev_state %d\n", __func__,
1565                 dev->std_set_in_tuner_core, dev->dev_state);
1566
1567         return au0828_writereg(dev, reg->reg, reg->val);
1568 }
1569 #endif
1570
1571 static int vidioc_log_status(struct file *file, void *fh)
1572 {
1573         struct video_device *vdev = video_devdata(file);
1574
1575         dprintk(1, "%s called\n", __func__);
1576
1577         v4l2_ctrl_log_status(file, fh);
1578         v4l2_device_call_all(vdev->v4l2_dev, 0, core, log_status);
1579         return 0;
1580 }
1581
1582 void au0828_v4l2_suspend(struct au0828_dev *dev)
1583 {
1584         struct urb *urb;
1585         int i;
1586
1587         pr_info("stopping V4L2\n");
1588
1589         if (dev->stream_state == STREAM_ON) {
1590                 pr_info("stopping V4L2 active URBs\n");
1591                 au0828_analog_stream_disable(dev);
1592                 /* stop urbs */
1593                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1594                         urb = dev->isoc_ctl.urb[i];
1595                         if (urb) {
1596                                 if (!irqs_disabled())
1597                                         usb_kill_urb(urb);
1598                                 else
1599                                         usb_unlink_urb(urb);
1600                         }
1601                 }
1602         }
1603
1604         if (dev->vid_timeout_running)
1605                 del_timer_sync(&dev->vid_timeout);
1606         if (dev->vbi_timeout_running)
1607                 del_timer_sync(&dev->vbi_timeout);
1608 }
1609
1610 void au0828_v4l2_resume(struct au0828_dev *dev)
1611 {
1612         int i, rc;
1613
1614         pr_info("restarting V4L2\n");
1615
1616         if (dev->stream_state == STREAM_ON) {
1617                 au0828_stream_interrupt(dev);
1618                 au0828_init_tuner(dev);
1619         }
1620
1621         if (dev->vid_timeout_running)
1622                 mod_timer(&dev->vid_timeout, jiffies + (HZ / 10));
1623         if (dev->vbi_timeout_running)
1624                 mod_timer(&dev->vbi_timeout, jiffies + (HZ / 10));
1625
1626         /* If we were doing ac97 instead of i2s, it would go here...*/
1627         au0828_i2s_init(dev);
1628
1629         au0828_analog_stream_enable(dev);
1630
1631         if (!(dev->stream_state == STREAM_ON)) {
1632                 au0828_analog_stream_reset(dev);
1633                 /* submit urbs */
1634                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
1635                         rc = usb_submit_urb(dev->isoc_ctl.urb[i], GFP_ATOMIC);
1636                         if (rc) {
1637                                 au0828_isocdbg("submit of urb %i failed (error=%i)\n",
1638                                                i, rc);
1639                                 au0828_uninit_isoc(dev);
1640                         }
1641                 }
1642         }
1643 }
1644
1645 static struct v4l2_file_operations au0828_v4l_fops = {
1646         .owner      = THIS_MODULE,
1647         .open       = au0828_v4l2_open,
1648         .release    = au0828_v4l2_close,
1649         .read       = vb2_fop_read,
1650         .poll       = vb2_fop_poll,
1651         .mmap       = vb2_fop_mmap,
1652         .unlocked_ioctl = video_ioctl2,
1653 };
1654
1655 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1656         .vidioc_querycap            = vidioc_querycap,
1657         .vidioc_enum_fmt_vid_cap    = vidioc_enum_fmt_vid_cap,
1658         .vidioc_g_fmt_vid_cap       = vidioc_g_fmt_vid_cap,
1659         .vidioc_try_fmt_vid_cap     = vidioc_try_fmt_vid_cap,
1660         .vidioc_s_fmt_vid_cap       = vidioc_s_fmt_vid_cap,
1661         .vidioc_g_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1662         .vidioc_try_fmt_vbi_cap     = vidioc_g_fmt_vbi_cap,
1663         .vidioc_s_fmt_vbi_cap       = vidioc_g_fmt_vbi_cap,
1664         .vidioc_enumaudio           = vidioc_enumaudio,
1665         .vidioc_g_audio             = vidioc_g_audio,
1666         .vidioc_s_audio             = vidioc_s_audio,
1667         .vidioc_cropcap             = vidioc_cropcap,
1668
1669         .vidioc_reqbufs             = vb2_ioctl_reqbufs,
1670         .vidioc_create_bufs         = vb2_ioctl_create_bufs,
1671         .vidioc_prepare_buf         = vb2_ioctl_prepare_buf,
1672         .vidioc_querybuf            = vb2_ioctl_querybuf,
1673         .vidioc_qbuf                = vb2_ioctl_qbuf,
1674         .vidioc_dqbuf               = vb2_ioctl_dqbuf,
1675         .vidioc_expbuf               = vb2_ioctl_expbuf,
1676
1677         .vidioc_s_std               = vidioc_s_std,
1678         .vidioc_g_std               = vidioc_g_std,
1679         .vidioc_enum_input          = vidioc_enum_input,
1680         .vidioc_g_input             = vidioc_g_input,
1681         .vidioc_s_input             = vidioc_s_input,
1682
1683         .vidioc_streamon            = vb2_ioctl_streamon,
1684         .vidioc_streamoff           = vb2_ioctl_streamoff,
1685
1686         .vidioc_g_tuner             = vidioc_g_tuner,
1687         .vidioc_s_tuner             = vidioc_s_tuner,
1688         .vidioc_g_frequency         = vidioc_g_frequency,
1689         .vidioc_s_frequency         = vidioc_s_frequency,
1690 #ifdef CONFIG_VIDEO_ADV_DEBUG
1691         .vidioc_g_register          = vidioc_g_register,
1692         .vidioc_s_register          = vidioc_s_register,
1693 #endif
1694         .vidioc_log_status          = vidioc_log_status,
1695         .vidioc_subscribe_event     = v4l2_ctrl_subscribe_event,
1696         .vidioc_unsubscribe_event   = v4l2_event_unsubscribe,
1697 };
1698
1699 static const struct video_device au0828_video_template = {
1700         .fops                       = &au0828_v4l_fops,
1701         .release                    = video_device_release_empty,
1702         .ioctl_ops                  = &video_ioctl_ops,
1703         .tvnorms                    = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
1704 };
1705
1706 static int au0828_vb2_setup(struct au0828_dev *dev)
1707 {
1708         int rc;
1709         struct vb2_queue *q;
1710
1711         /* Setup Videobuf2 for Video capture */
1712         q = &dev->vb_vidq;
1713         q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1714         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1715         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1716         q->drv_priv = dev;
1717         q->buf_struct_size = sizeof(struct au0828_buffer);
1718         q->ops = &au0828_video_qops;
1719         q->mem_ops = &vb2_vmalloc_memops;
1720
1721         rc = vb2_queue_init(q);
1722         if (rc < 0)
1723                 return rc;
1724
1725         /* Setup Videobuf2 for VBI capture */
1726         q = &dev->vb_vbiq;
1727         q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
1728         q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1729         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1730         q->drv_priv = dev;
1731         q->buf_struct_size = sizeof(struct au0828_buffer);
1732         q->ops = &au0828_vbi_qops;
1733         q->mem_ops = &vb2_vmalloc_memops;
1734
1735         rc = vb2_queue_init(q);
1736         if (rc < 0)
1737                 return rc;
1738
1739         return 0;
1740 }
1741
1742 /**************************************************************************/
1743
1744 int au0828_analog_register(struct au0828_dev *dev,
1745                            struct usb_interface *interface)
1746 {
1747         int retval = -ENOMEM;
1748         struct usb_host_interface *iface_desc;
1749         struct usb_endpoint_descriptor *endpoint;
1750         int i, ret;
1751
1752         dprintk(1, "au0828_analog_register called for intf#%d!\n",
1753                 interface->cur_altsetting->desc.bInterfaceNumber);
1754
1755         /* set au0828 usb interface0 to as5 */
1756         retval = usb_set_interface(dev->usbdev,
1757                         interface->cur_altsetting->desc.bInterfaceNumber, 5);
1758         if (retval != 0) {
1759                 pr_info("Failure setting usb interface0 to as5\n");
1760                 return retval;
1761         }
1762
1763         /* Figure out which endpoint has the isoc interface */
1764         iface_desc = interface->cur_altsetting;
1765         for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
1766                 endpoint = &iface_desc->endpoint[i].desc;
1767                 if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1768                      == USB_DIR_IN) &&
1769                     ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1770                      == USB_ENDPOINT_XFER_ISOC)) {
1771
1772                         /* we find our isoc in endpoint */
1773                         u16 tmp = le16_to_cpu(endpoint->wMaxPacketSize);
1774                         dev->max_pkt_size = (tmp & 0x07ff) *
1775                                 (((tmp & 0x1800) >> 11) + 1);
1776                         dev->isoc_in_endpointaddr = endpoint->bEndpointAddress;
1777                         dprintk(1,
1778                                 "Found isoc endpoint 0x%02x, max size = %d\n",
1779                                 dev->isoc_in_endpointaddr, dev->max_pkt_size);
1780                 }
1781         }
1782         if (!(dev->isoc_in_endpointaddr)) {
1783                 pr_info("Could not locate isoc endpoint\n");
1784                 return -ENODEV;
1785         }
1786
1787         init_waitqueue_head(&dev->open);
1788         spin_lock_init(&dev->slock);
1789
1790         /* init video dma queues */
1791         INIT_LIST_HEAD(&dev->vidq.active);
1792         INIT_LIST_HEAD(&dev->vbiq.active);
1793
1794         setup_timer(&dev->vid_timeout, au0828_vid_buffer_timeout,
1795                     (unsigned long)dev);
1796         setup_timer(&dev->vbi_timeout, au0828_vbi_buffer_timeout,
1797                     (unsigned long)dev);
1798
1799         dev->width = NTSC_STD_W;
1800         dev->height = NTSC_STD_H;
1801         dev->field_size = dev->width * dev->height;
1802         dev->frame_size = dev->field_size << 1;
1803         dev->bytesperline = dev->width << 1;
1804         dev->vbi_width = 720;
1805         dev->vbi_height = 1;
1806         dev->ctrl_ainput = 0;
1807         dev->ctrl_freq = 960;
1808         dev->std = V4L2_STD_NTSC_M;
1809         au0828_s_input(dev, 0);
1810
1811         mutex_init(&dev->vb_queue_lock);
1812         mutex_init(&dev->vb_vbi_queue_lock);
1813
1814         /* Fill the video capture device struct */
1815         dev->vdev = au0828_video_template;
1816         dev->vdev.v4l2_dev = &dev->v4l2_dev;
1817         dev->vdev.lock = &dev->lock;
1818         dev->vdev.queue = &dev->vb_vidq;
1819         dev->vdev.queue->lock = &dev->vb_queue_lock;
1820         strcpy(dev->vdev.name, "au0828a video");
1821
1822         /* Setup the VBI device */
1823         dev->vbi_dev = au0828_video_template;
1824         dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
1825         dev->vbi_dev.lock = &dev->lock;
1826         dev->vbi_dev.queue = &dev->vb_vbiq;
1827         dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
1828         strcpy(dev->vbi_dev.name, "au0828a vbi");
1829
1830         /* initialize videobuf2 stuff */
1831         retval = au0828_vb2_setup(dev);
1832         if (retval != 0) {
1833                 dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
1834                         retval);
1835                 return -ENODEV;
1836         }
1837
1838         /* Register the v4l2 device */
1839         video_set_drvdata(&dev->vdev, dev);
1840         retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
1841         if (retval != 0) {
1842                 dprintk(1, "unable to register video device (error = %d).\n",
1843                         retval);
1844                 ret = -ENODEV;
1845                 goto err_reg_vdev;
1846         }
1847
1848         /* Register the vbi device */
1849         video_set_drvdata(&dev->vbi_dev, dev);
1850         retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);
1851         if (retval != 0) {
1852                 dprintk(1, "unable to register vbi device (error = %d).\n",
1853                         retval);
1854                 ret = -ENODEV;
1855                 goto err_reg_vbi_dev;
1856         }
1857
1858         dprintk(1, "%s completed!\n", __func__);
1859
1860         return 0;
1861
1862 err_reg_vbi_dev:
1863         video_unregister_device(&dev->vdev);
1864 err_reg_vdev:
1865         vb2_queue_release(&dev->vb_vidq);
1866         vb2_queue_release(&dev->vb_vbiq);
1867         return ret;
1868 }
1869