drivers/media/usb/hdpvr/hdpvr-video.c

   1 /*
   2  * Hauppauge HD PVR USB driver - video 4 linux 2 interface
   3  *
   4  * Copyright (C) 2008      Janne Grunau (j@jannau.net)
   5  *
   6  *      This program is free software; you can redistribute it and/or
   7  *      modify it under the terms of the GNU General Public License as
   8  *      published by the Free Software Foundation, version 2.
   9  *
  10  */
  11
  12 #include <linux/kernel.h>
  13 #include <linux/errno.h>
  14 #include <linux/init.h>
  15 #include <linux/slab.h>
  16 #include <linux/module.h>
  17 #include <linux/uaccess.h>
  18 #include <linux/usb.h>
  19 #include <linux/mutex.h>
  20 #include <linux/workqueue.h>
  21
  22 #include <linux/videodev2.h>
  23 #include <media/v4l2-dev.h>
  24 #include <media/v4l2-common.h>
  25 #include <media/v4l2-ioctl.h>
  26 #include "hdpvr.h"
  27
  28 #define BULK_URB_TIMEOUT   90 /* 0.09 seconds */
  29
  30 #define print_buffer_status() { \
  31                 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,       \
  32                          "%s:%d buffer stat: %d free, %d proc\n",       \
  33                          __func__, __LINE__,                            \
  34                          list_size(&dev->free_buff_list),               \
  35                          list_size(&dev->rec_buff_list)); }
  36
  37 struct hdpvr_fh {
  38         struct hdpvr_device     *dev;
  39 };
  40
  41 static uint list_size(struct list_head *list)
  42 {
  43         struct list_head *tmp;
  44         uint count = 0;
  45
  46         list_for_each(tmp, list) {
  47                 count++;
  48         }
  49
  50         return count;
  51 }
  52
  53 /*=========================================================================*/
  54 /* urb callback */
  55 static void hdpvr_read_bulk_callback(struct urb *urb)
  56 {
  57         struct hdpvr_buffer *buf = (struct hdpvr_buffer *)urb->context;
  58         struct hdpvr_device *dev = buf->dev;
  59
  60         /* marking buffer as received and wake waiting */
  61         buf->status = BUFSTAT_READY;
  62         wake_up_interruptible(&dev->wait_data);
  63 }
  64
  65 /*=========================================================================*/
  66 /* bufffer bits */
  67
  68 /* function expects dev->io_mutex to be hold by caller */
  69 int hdpvr_cancel_queue(struct hdpvr_device *dev)
  70 {
  71         struct hdpvr_buffer *buf;
  72
  73         list_for_each_entry(buf, &dev->rec_buff_list, buff_list) {
  74                 usb_kill_urb(buf->urb);
  75                 buf->status = BUFSTAT_AVAILABLE;
  76         }
  77
  78         list_splice_init(&dev->rec_buff_list, dev->free_buff_list.prev);
  79
  80         return 0;
  81 }
  82
  83 static int hdpvr_free_queue(struct list_head *q)
  84 {
  85         struct list_head *tmp;
  86         struct list_head *p;
  87         struct hdpvr_buffer *buf;
  88         struct urb *urb;
  89
  90         for (p = q->next; p != q;) {
  91                 buf = list_entry(p, struct hdpvr_buffer, buff_list);
  92
  93                 urb = buf->urb;
  94                 usb_free_coherent(urb->dev, urb->transfer_buffer_length,
  95                                   urb->transfer_buffer, urb->transfer_dma);
  96                 usb_free_urb(urb);
  97                 tmp = p->next;
  98                 list_del(p);
  99                 kfree(buf);
 100                 p = tmp;
 101         }
 102
 103         return 0;
 104 }
 105
 106 /* function expects dev->io_mutex to be hold by caller */
 107 int hdpvr_free_buffers(struct hdpvr_device *dev)
 108 {
 109         hdpvr_cancel_queue(dev);
 110
 111         hdpvr_free_queue(&dev->free_buff_list);
 112         hdpvr_free_queue(&dev->rec_buff_list);
 113
 114         return 0;
 115 }
 116
 117 /* function expects dev->io_mutex to be hold by caller */
 118 int hdpvr_alloc_buffers(struct hdpvr_device *dev, uint count)
 119 {
 120         uint i;
 121         int retval = -ENOMEM;
 122         u8 *mem;
 123         struct hdpvr_buffer *buf;
 124         struct urb *urb;
 125
 126         v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
 127                  "allocating %u buffers\n", count);
 128
 129         for (i = 0; i < count; i++) {
 130
 131                 buf = kzalloc(sizeof(struct hdpvr_buffer), GFP_KERNEL);
 132                 if (!buf) {
 133                         v4l2_err(&dev->v4l2_dev, "cannot allocate buffer\n");
 134                         goto exit;
 135                 }
 136                 buf->dev = dev;
 137
 138                 urb = usb_alloc_urb(0, GFP_KERNEL);
 139                 if (!urb) {
 140                         v4l2_err(&dev->v4l2_dev, "cannot allocate urb\n");
 141                         goto exit_urb;
 142                 }
 143                 buf->urb = urb;
 144
 145                 mem = usb_alloc_coherent(dev->udev, dev->bulk_in_size, GFP_KERNEL,
 146                                          &urb->transfer_dma);
 147                 if (!mem) {
 148                         v4l2_err(&dev->v4l2_dev,
 149                                  "cannot allocate usb transfer buffer\n");
 150                         goto exit_urb_buffer;
 151                 }
 152
 153                 usb_fill_bulk_urb(buf->urb, dev->udev,
 154                                   usb_rcvbulkpipe(dev->udev,
 155                                                   dev->bulk_in_endpointAddr),
 156                                   mem, dev->bulk_in_size,
 157                                   hdpvr_read_bulk_callback, buf);
 158
 159                 buf->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 160                 buf->status = BUFSTAT_AVAILABLE;
 161                 list_add_tail(&buf->buff_list, &dev->free_buff_list);
 162         }
 163         return 0;
 164 exit_urb_buffer:
 165         usb_free_urb(urb);
 166 exit_urb:
 167         kfree(buf);
 168 exit:
 169         hdpvr_free_buffers(dev);
 170         return retval;
 171 }
 172
 173 static int hdpvr_submit_buffers(struct hdpvr_device *dev)
 174 {
 175         struct hdpvr_buffer *buf;
 176         struct urb *urb;
 177         int ret = 0, err_count = 0;
 178
 179         mutex_lock(&dev->io_mutex);
 180
 181         while (dev->status == STATUS_STREAMING &&
 182                !list_empty(&dev->free_buff_list)) {
 183
 184                 buf = list_entry(dev->free_buff_list.next, struct hdpvr_buffer,
 185                                  buff_list);
 186                 if (buf->status != BUFSTAT_AVAILABLE) {
 187                         v4l2_err(&dev->v4l2_dev,
 188                                  "buffer not marked as available\n");
 189                         ret = -EFAULT;
 190                         goto err;
 191                 }
 192
 193                 urb = buf->urb;
 194                 urb->status = 0;
 195                 urb->actual_length = 0;
 196                 ret = usb_submit_urb(urb, GFP_KERNEL);
 197                 if (ret) {
 198                         v4l2_err(&dev->v4l2_dev,
 199                                  "usb_submit_urb in %s returned %d\n",
 200                                  __func__, ret);
 201                         if (++err_count > 2)
 202                                 break;
 203                         continue;
 204                 }
 205                 buf->status = BUFSTAT_INPROGRESS;
 206                 list_move_tail(&buf->buff_list, &dev->rec_buff_list);
 207         }
 208 err:
 209         print_buffer_status();
 210         mutex_unlock(&dev->io_mutex);
 211         return ret;
 212 }
 213
 214 static struct hdpvr_buffer *hdpvr_get_next_buffer(struct hdpvr_device *dev)
 215 {
 216         struct hdpvr_buffer *buf;
 217
 218         mutex_lock(&dev->io_mutex);
 219
 220         if (list_empty(&dev->rec_buff_list)) {
 221                 mutex_unlock(&dev->io_mutex);
 222                 return NULL;
 223         }
 224
 225         buf = list_entry(dev->rec_buff_list.next, struct hdpvr_buffer,
 226                          buff_list);
 227         mutex_unlock(&dev->io_mutex);
 228
 229         return buf;
 230 }
 231
 232 static void hdpvr_transmit_buffers(struct work_struct *work)
 233 {
 234         struct hdpvr_device *dev = container_of(work, struct hdpvr_device,
 235                                                 worker);
 236
 237         while (dev->status == STATUS_STREAMING) {
 238
 239                 if (hdpvr_submit_buffers(dev)) {
 240                         v4l2_err(&dev->v4l2_dev, "couldn't submit buffers\n");
 241                         goto error;
 242                 }
 243                 if (wait_event_interruptible(dev->wait_buffer,
 244                                 !list_empty(&dev->free_buff_list) ||
 245                                              dev->status != STATUS_STREAMING))
 246                         goto error;
 247         }
 248
 249         v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
 250                  "transmit worker exited\n");
 251         return;
 252 error:
 253         v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
 254                  "transmit buffers errored\n");
 255         dev->status = STATUS_ERROR;
 256 }
 257
 258 /* function expects dev->io_mutex to be hold by caller */
 259 static int hdpvr_start_streaming(struct hdpvr_device *dev)
 260 {
 261         int ret;
 262         struct hdpvr_video_info *vidinf;
 263
 264         if (dev->status == STATUS_STREAMING)
 265                 return 0;
 266         else if (dev->status != STATUS_IDLE)
 267                 return -EAGAIN;
 268
 269         vidinf = get_video_info(dev);
 270
 271         if (vidinf) {
 272                 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 273                          "video signal: %dx%d@%dhz\n", vidinf->width,
 274                          vidinf->height, vidinf->fps);
 275                 kfree(vidinf);
 276
 277                 /* start streaming 2 request */
 278                 ret = usb_control_msg(dev->udev,
 279                                       usb_sndctrlpipe(dev->udev, 0),
 280                                       0xb8, 0x38, 0x1, 0, NULL, 0, 8000);
 281                 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 282                          "encoder start control request returned %d\n", ret);
 283
 284                 hdpvr_config_call(dev, CTRL_START_STREAMING_VALUE, 0x00);
 285
 286                 dev->status = STATUS_STREAMING;
 287
 288                 INIT_WORK(&dev->worker, hdpvr_transmit_buffers);
 289                 queue_work(dev->workqueue, &dev->worker);
 290
 291                 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 292                          "streaming started\n");
 293
 294                 return 0;
 295         }
 296         msleep(250);
 297         v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
 298                  "no video signal at input %d\n", dev->options.video_input);
 299         return -EAGAIN;
 300 }
 301
 302
 303 /* function expects dev->io_mutex to be hold by caller */
 304 static int hdpvr_stop_streaming(struct hdpvr_device *dev)
 305 {
 306         int actual_length;
 307         uint c = 0;
 308         u8 *buf;
 309
 310         if (dev->status == STATUS_IDLE)
 311                 return 0;
 312         else if (dev->status != STATUS_STREAMING)
 313                 return -EAGAIN;
 314
 315         buf = kmalloc(dev->bulk_in_size, GFP_KERNEL);
 316         if (!buf)
 317                 v4l2_err(&dev->v4l2_dev, "failed to allocate temporary buffer "
 318                          "for emptying the internal device buffer. "
 319                          "Next capture start will be slow\n");
 320
 321         dev->status = STATUS_SHUTTING_DOWN;
 322         hdpvr_config_call(dev, CTRL_STOP_STREAMING_VALUE, 0x00);
 323         mutex_unlock(&dev->io_mutex);
 324
 325         wake_up_interruptible(&dev->wait_buffer);
 326         msleep(50);
 327
 328         flush_workqueue(dev->workqueue);
 329
 330         mutex_lock(&dev->io_mutex);
 331         /* kill the still outstanding urbs */
 332         hdpvr_cancel_queue(dev);
 333
 334         /* emptying the device buffer beforeshutting it down */
 335         while (buf && ++c < 500 &&
 336                !usb_bulk_msg(dev->udev,
 337                              usb_rcvbulkpipe(dev->udev,
 338                                              dev->bulk_in_endpointAddr),
 339                              buf, dev->bulk_in_size, &actual_length,
 340                              BULK_URB_TIMEOUT)) {
 341                 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 342                          "%2d: got %d bytes\n", c, actual_length);
 343         }
 344         kfree(buf);
 345         v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 346                  "used %d urbs to empty device buffers\n", c-1);
 347         msleep(10);
 348
 349         dev->status = STATUS_IDLE;
 350
 351         return 0;
 352 }
 353
 354
 355 /*=======================================================================*/
 356 /*
 357  * video 4 linux 2 file operations
 358  */
 359
 360 static int hdpvr_open(struct file *file)
 361 {
 362         struct hdpvr_device *dev;
 363         struct hdpvr_fh *fh;
 364         int retval = -ENOMEM;
 365
 366         dev = (struct hdpvr_device *)video_get_drvdata(video_devdata(file));
 367         if (!dev) {
 368                 pr_err("open failing with with ENODEV\n");
 369                 retval = -ENODEV;
 370                 goto err;
 371         }
 372
 373         fh = kzalloc(sizeof(struct hdpvr_fh), GFP_KERNEL);
 374         if (!fh) {
 375                 v4l2_err(&dev->v4l2_dev, "Out of memory\n");
 376                 goto err;
 377         }
 378         /* lock the device to allow correctly handling errors
 379          * in resumption */
 380         mutex_lock(&dev->io_mutex);
 381         dev->open_count++;
 382         mutex_unlock(&dev->io_mutex);
 383
 384         fh->dev = dev;
 385
 386         /* save our object in the file's private structure */
 387         file->private_data = fh;
 388
 389         retval = 0;
 390 err:
 391         return retval;
 392 }
 393
 394 static int hdpvr_release(struct file *file)
 395 {
 396         struct hdpvr_fh         *fh  = file->private_data;
 397         struct hdpvr_device     *dev = fh->dev;
 398
 399         if (!dev)
 400                 return -ENODEV;
 401
 402         mutex_lock(&dev->io_mutex);
 403         if (!(--dev->open_count) && dev->status == STATUS_STREAMING)
 404                 hdpvr_stop_streaming(dev);
 405
 406         mutex_unlock(&dev->io_mutex);
 407
 408         return 0;
 409 }
 410
 411 /*
 412  * hdpvr_v4l2_read()
 413  * will allocate buffers when called for the first time
 414  */
 415 static ssize_t hdpvr_read(struct file *file, char __user *buffer, size_t count,
 416                           loff_t *pos)
 417 {
 418         struct hdpvr_fh *fh = file->private_data;
 419         struct hdpvr_device *dev = fh->dev;
 420         struct hdpvr_buffer *buf = NULL;
 421         struct urb *urb;
 422         unsigned int ret = 0;
 423         int rem, cnt;
 424
 425         if (*pos)
 426                 return -ESPIPE;
 427
 428         if (!dev)
 429                 return -ENODEV;
 430
 431         mutex_lock(&dev->io_mutex);
 432         if (dev->status == STATUS_IDLE) {
 433                 if (hdpvr_start_streaming(dev)) {
 434                         v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
 435                                  "start_streaming failed\n");
 436                         ret = -EIO;
 437                         msleep(200);
 438                         dev->status = STATUS_IDLE;
 439                         mutex_unlock(&dev->io_mutex);
 440                         goto err;
 441                 }
 442                 print_buffer_status();
 443         }
 444         mutex_unlock(&dev->io_mutex);
 445
 446         /* wait for the first buffer */
 447         if (!(file->f_flags & O_NONBLOCK)) {
 448                 if (wait_event_interruptible(dev->wait_data,
 449                                              hdpvr_get_next_buffer(dev)))
 450                         return -ERESTARTSYS;
 451         }
 452
 453         buf = hdpvr_get_next_buffer(dev);
 454
 455         while (count > 0 && buf) {
 456
 457                 if (buf->status != BUFSTAT_READY &&
 458                     dev->status != STATUS_DISCONNECTED) {
 459                         /* return nonblocking */
 460                         if (file->f_flags & O_NONBLOCK) {
 461                                 if (!ret)
 462                                         ret = -EAGAIN;
 463                                 goto err;
 464                         }
 465
 466                         if (wait_event_interruptible(dev->wait_data,
 467                                               buf->status == BUFSTAT_READY)) {
 468                                 ret = -ERESTARTSYS;
 469                                 goto err;
 470                         }
 471                 }
 472
 473                 if (buf->status != BUFSTAT_READY)
 474                         break;
 475
 476                 /* set remaining bytes to copy */
 477                 urb = buf->urb;
 478                 rem = urb->actual_length - buf->pos;
 479                 cnt = rem > count ? count : rem;
 480
 481                 if (copy_to_user(buffer, urb->transfer_buffer + buf->pos,
 482                                  cnt)) {
 483                         v4l2_err(&dev->v4l2_dev, "read: copy_to_user failed\n");
 484                         if (!ret)
 485                                 ret = -EFAULT;
 486                         goto err;
 487                 }
 488
 489                 buf->pos += cnt;
 490                 count -= cnt;
 491                 buffer += cnt;
 492                 ret += cnt;
 493
 494                 /* finished, take next buffer */
 495                 if (buf->pos == urb->actual_length) {
 496                         mutex_lock(&dev->io_mutex);
 497                         buf->pos = 0;
 498                         buf->status = BUFSTAT_AVAILABLE;
 499
 500                         list_move_tail(&buf->buff_list, &dev->free_buff_list);
 501
 502                         print_buffer_status();
 503
 504                         mutex_unlock(&dev->io_mutex);
 505
 506                         wake_up_interruptible(&dev->wait_buffer);
 507
 508                         buf = hdpvr_get_next_buffer(dev);
 509                 }
 510         }
 511 err:
 512         if (!ret && !buf)
 513                 ret = -EAGAIN;
 514         return ret;
 515 }
 516
 517 static unsigned int hdpvr_poll(struct file *filp, poll_table *wait)
 518 {
 519         struct hdpvr_buffer *buf = NULL;
 520         struct hdpvr_fh *fh = filp->private_data;
 521         struct hdpvr_device *dev = fh->dev;
 522         unsigned int mask = 0;
 523
 524         mutex_lock(&dev->io_mutex);
 525
 526         if (!video_is_registered(dev->video_dev)) {
 527                 mutex_unlock(&dev->io_mutex);
 528                 return -EIO;
 529         }
 530
 531         if (dev->status == STATUS_IDLE) {
 532                 if (hdpvr_start_streaming(dev)) {
 533                         v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 534                                  "start_streaming failed\n");
 535                         dev->status = STATUS_IDLE;
 536                 }
 537
 538                 print_buffer_status();
 539         }
 540         mutex_unlock(&dev->io_mutex);
 541
 542         buf = hdpvr_get_next_buffer(dev);
 543         /* only wait if no data is available */
 544         if (!buf || buf->status != BUFSTAT_READY) {
 545                 poll_wait(filp, &dev->wait_data, wait);
 546                 buf = hdpvr_get_next_buffer(dev);
 547         }
 548         if (buf && buf->status == BUFSTAT_READY)
 549                 mask |= POLLIN | POLLRDNORM;
 550
 551         return mask;
 552 }
 553
 554
 555 static const struct v4l2_file_operations hdpvr_fops = {
 556         .owner          = THIS_MODULE,
 557         .open           = hdpvr_open,
 558         .release        = hdpvr_release,
 559         .read           = hdpvr_read,
 560         .poll           = hdpvr_poll,
 561         .unlocked_ioctl = video_ioctl2,
 562 };
 563
 564 /*=======================================================================*/
 565 /*
 566  * V4L2 ioctl handling
 567  */
 568
 569 static int vidioc_querycap(struct file *file, void  *priv,
 570                            struct v4l2_capability *cap)
 571 {
 572         struct hdpvr_device *dev = video_drvdata(file);
 573
 574         strcpy(cap->driver, "hdpvr");
 575         strcpy(cap->card, "Hauppauge HD PVR");
 576         usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
 577         cap->capabilities =     V4L2_CAP_VIDEO_CAPTURE |
 578                                 V4L2_CAP_AUDIO         |
 579                                 V4L2_CAP_READWRITE;
 580         return 0;
 581 }
 582
 583 static int vidioc_s_std(struct file *file, void *private_data,
 584                         v4l2_std_id *std)
 585 {
 586         struct hdpvr_fh *fh = file->private_data;
 587         struct hdpvr_device *dev = fh->dev;
 588         u8 std_type = 1;
 589
 590         if (*std & (V4L2_STD_NTSC | V4L2_STD_PAL_60))
 591                 std_type = 0;
 592
 593         return hdpvr_config_call(dev, CTRL_VIDEO_STD_TYPE, std_type);
 594 }
 595
 596 static const char *iname[] = {
 597         [HDPVR_COMPONENT] = "Component",
 598         [HDPVR_SVIDEO]    = "S-Video",
 599         [HDPVR_COMPOSITE] = "Composite",
 600 };
 601
 602 static int vidioc_enum_input(struct file *file, void *priv,
 603                                 struct v4l2_input *i)
 604 {
 605         struct hdpvr_fh *fh = file->private_data;
 606         struct hdpvr_device *dev = fh->dev;
 607         unsigned int n;
 608
 609         n = i->index;
 610         if (n >= HDPVR_VIDEO_INPUTS)
 611                 return -EINVAL;
 612
 613         i->type = V4L2_INPUT_TYPE_CAMERA;
 614
 615         strncpy(i->name, iname[n], sizeof(i->name) - 1);
 616         i->name[sizeof(i->name) - 1] = '\0';
 617
 618         i->audioset = 1<<HDPVR_RCA_FRONT | 1<<HDPVR_RCA_BACK | 1<<HDPVR_SPDIF;
 619
 620         i->std = dev->video_dev->tvnorms;
 621
 622         return 0;
 623 }
 624
 625 static int vidioc_s_input(struct file *file, void *private_data,
 626                           unsigned int index)
 627 {
 628         struct hdpvr_fh *fh = file->private_data;
 629         struct hdpvr_device *dev = fh->dev;
 630         int retval;
 631
 632         if (index >= HDPVR_VIDEO_INPUTS)
 633                 return -EINVAL;
 634
 635         if (dev->status != STATUS_IDLE)
 636                 return -EAGAIN;
 637
 638         retval = hdpvr_config_call(dev, CTRL_VIDEO_INPUT_VALUE, index+1);
 639         if (!retval)
 640                 dev->options.video_input = index;
 641
 642         return retval;
 643 }
 644
 645 static int vidioc_g_input(struct file *file, void *private_data,
 646                           unsigned int *index)
 647 {
 648         struct hdpvr_fh *fh = file->private_data;
 649         struct hdpvr_device *dev = fh->dev;
 650
 651         *index = dev->options.video_input;
 652         return 0;
 653 }
 654
 655
 656 static const char *audio_iname[] = {
 657         [HDPVR_RCA_FRONT] = "RCA front",
 658         [HDPVR_RCA_BACK]  = "RCA back",
 659         [HDPVR_SPDIF]     = "SPDIF",
 660 };
 661
 662 static int vidioc_enumaudio(struct file *file, void *priv,
 663                                 struct v4l2_audio *audio)
 664 {
 665         unsigned int n;
 666
 667         n = audio->index;
 668         if (n >= HDPVR_AUDIO_INPUTS)
 669                 return -EINVAL;
 670
 671         audio->capability = V4L2_AUDCAP_STEREO;
 672
 673         strncpy(audio->name, audio_iname[n], sizeof(audio->name) - 1);
 674         audio->name[sizeof(audio->name) - 1] = '\0';
 675
 676         return 0;
 677 }
 678
 679 static int vidioc_s_audio(struct file *file, void *private_data,
 680                           const struct v4l2_audio *audio)
 681 {
 682         struct hdpvr_fh *fh = file->private_data;
 683         struct hdpvr_device *dev = fh->dev;
 684         int retval;
 685
 686         if (audio->index >= HDPVR_AUDIO_INPUTS)
 687                 return -EINVAL;
 688
 689         if (dev->status != STATUS_IDLE)
 690                 return -EAGAIN;
 691
 692         retval = hdpvr_set_audio(dev, audio->index+1, dev->options.audio_codec);
 693         if (!retval)
 694                 dev->options.audio_input = audio->index;
 695
 696         return retval;
 697 }
 698
 699 static int vidioc_g_audio(struct file *file, void *private_data,
 700                           struct v4l2_audio *audio)
 701 {
 702         struct hdpvr_fh *fh = file->private_data;
 703         struct hdpvr_device *dev = fh->dev;
 704
 705         audio->index = dev->options.audio_input;
 706         audio->capability = V4L2_AUDCAP_STEREO;
 707         strncpy(audio->name, audio_iname[audio->index], sizeof(audio->name));
 708         audio->name[sizeof(audio->name) - 1] = '\0';
 709         return 0;
 710 }
 711
 712 static const s32 supported_v4l2_ctrls[] = {
 713         V4L2_CID_BRIGHTNESS,
 714         V4L2_CID_CONTRAST,
 715         V4L2_CID_SATURATION,
 716         V4L2_CID_HUE,
 717         V4L2_CID_SHARPNESS,
 718         V4L2_CID_MPEG_AUDIO_ENCODING,
 719         V4L2_CID_MPEG_VIDEO_ENCODING,
 720         V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
 721         V4L2_CID_MPEG_VIDEO_BITRATE,
 722         V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
 723 };
 724
 725 static int fill_queryctrl(struct hdpvr_options *opt, struct v4l2_queryctrl *qc,
 726                           int ac3, int fw_ver)
 727 {
 728         int err;
 729
 730         if (fw_ver > 0x15) {
 731                 switch (qc->id) {
 732                 case V4L2_CID_BRIGHTNESS:
 733                         return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80);
 734                 case V4L2_CID_CONTRAST:
 735                         return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x40);
 736                 case V4L2_CID_SATURATION:
 737                         return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x40);
 738                 case V4L2_CID_HUE:
 739                         return v4l2_ctrl_query_fill(qc, 0x0, 0x1e, 1, 0xf);
 740                 case V4L2_CID_SHARPNESS:
 741                         return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80);
 742                 }
 743         } else {
 744                 switch (qc->id) {
 745                 case V4L2_CID_BRIGHTNESS:
 746                         return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x86);
 747                 case V4L2_CID_CONTRAST:
 748                         return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80);
 749                 case V4L2_CID_SATURATION:
 750                         return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80);
 751                 case V4L2_CID_HUE:
 752                         return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80);
 753                 case V4L2_CID_SHARPNESS:
 754                         return v4l2_ctrl_query_fill(qc, 0x0, 0xff, 1, 0x80);
 755                 }
 756         }
 757
 758         switch (qc->id) {
 759         case V4L2_CID_MPEG_AUDIO_ENCODING:
 760                 return v4l2_ctrl_query_fill(
 761                         qc, V4L2_MPEG_AUDIO_ENCODING_AAC,
 762                         ac3 ? V4L2_MPEG_AUDIO_ENCODING_AC3
 763                         : V4L2_MPEG_AUDIO_ENCODING_AAC,
 764                         1, V4L2_MPEG_AUDIO_ENCODING_AAC);
 765         case V4L2_CID_MPEG_VIDEO_ENCODING:
 766                 return v4l2_ctrl_query_fill(
 767                         qc, V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC,
 768                         V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC, 1,
 769                         V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC);
 770
 771 /*      case V4L2_CID_MPEG_VIDEO_? maybe keyframe interval: */
 772 /*              return v4l2_ctrl_query_fill(qc, 0, 128, 128, 0); */
 773         case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
 774                 return v4l2_ctrl_query_fill(
 775                         qc, V4L2_MPEG_VIDEO_BITRATE_MODE_VBR,
 776                         V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 1,
 777                         V4L2_MPEG_VIDEO_BITRATE_MODE_CBR);
 778
 779         case V4L2_CID_MPEG_VIDEO_BITRATE:
 780                 return v4l2_ctrl_query_fill(qc, 1000000, 13500000, 100000,
 781                                             6500000);
 782         case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
 783                 err = v4l2_ctrl_query_fill(qc, 1100000, 20200000, 100000,
 784                                            9000000);
 785                 if (!err && opt->bitrate_mode == HDPVR_CONSTANT)
 786                         qc->flags |= V4L2_CTRL_FLAG_INACTIVE;
 787                 return err;
 788         default:
 789                 return -EINVAL;
 790         }
 791 }
 792
 793 static int vidioc_queryctrl(struct file *file, void *private_data,
 794                             struct v4l2_queryctrl *qc)
 795 {
 796         struct hdpvr_fh *fh = file->private_data;
 797         struct hdpvr_device *dev = fh->dev;
 798         int i, next;
 799         u32 id = qc->id;
 800
 801         memset(qc, 0, sizeof(*qc));
 802
 803         next = !!(id &  V4L2_CTRL_FLAG_NEXT_CTRL);
 804         qc->id = id & ~V4L2_CTRL_FLAG_NEXT_CTRL;
 805
 806         for (i = 0; i < ARRAY_SIZE(supported_v4l2_ctrls); i++) {
 807                 if (next) {
 808                         if (qc->id < supported_v4l2_ctrls[i])
 809                                 qc->id = supported_v4l2_ctrls[i];
 810                         else
 811                                 continue;
 812                 }
 813
 814                 if (qc->id == supported_v4l2_ctrls[i])
 815                         return fill_queryctrl(&dev->options, qc,
 816                                               dev->flags & HDPVR_FLAG_AC3_CAP,
 817                                               dev->fw_ver);
 818
 819                 if (qc->id < supported_v4l2_ctrls[i])
 820                         break;
 821         }
 822
 823         return -EINVAL;
 824 }
 825
 826 static int vidioc_g_ctrl(struct file *file, void *private_data,
 827                          struct v4l2_control *ctrl)
 828 {
 829         struct hdpvr_fh *fh = file->private_data;
 830         struct hdpvr_device *dev = fh->dev;
 831
 832         switch (ctrl->id) {
 833         case V4L2_CID_BRIGHTNESS:
 834                 ctrl->value = dev->options.brightness;
 835                 break;
 836         case V4L2_CID_CONTRAST:
 837                 ctrl->value = dev->options.contrast;
 838                 break;
 839         case V4L2_CID_SATURATION:
 840                 ctrl->value = dev->options.saturation;
 841                 break;
 842         case V4L2_CID_HUE:
 843                 ctrl->value = dev->options.hue;
 844                 break;
 845         case V4L2_CID_SHARPNESS:
 846                 ctrl->value = dev->options.sharpness;
 847                 break;
 848         default:
 849                 return -EINVAL;
 850         }
 851         return 0;
 852 }
 853
 854 static int vidioc_s_ctrl(struct file *file, void *private_data,
 855                          struct v4l2_control *ctrl)
 856 {
 857         struct hdpvr_fh *fh = file->private_data;
 858         struct hdpvr_device *dev = fh->dev;
 859         int retval;
 860
 861         switch (ctrl->id) {
 862         case V4L2_CID_BRIGHTNESS:
 863                 retval = hdpvr_config_call(dev, CTRL_BRIGHTNESS, ctrl->value);
 864                 if (!retval)
 865                         dev->options.brightness = ctrl->value;
 866                 break;
 867         case V4L2_CID_CONTRAST:
 868                 retval = hdpvr_config_call(dev, CTRL_CONTRAST, ctrl->value);
 869                 if (!retval)
 870                         dev->options.contrast = ctrl->value;
 871                 break;
 872         case V4L2_CID_SATURATION:
 873                 retval = hdpvr_config_call(dev, CTRL_SATURATION, ctrl->value);
 874                 if (!retval)
 875                         dev->options.saturation = ctrl->value;
 876                 break;
 877         case V4L2_CID_HUE:
 878                 retval = hdpvr_config_call(dev, CTRL_HUE, ctrl->value);
 879                 if (!retval)
 880                         dev->options.hue = ctrl->value;
 881                 break;
 882         case V4L2_CID_SHARPNESS:
 883                 retval = hdpvr_config_call(dev, CTRL_SHARPNESS, ctrl->value);
 884                 if (!retval)
 885                         dev->options.sharpness = ctrl->value;
 886                 break;
 887         default:
 888                 return -EINVAL;
 889         }
 890
 891         return retval;
 892 }
 893
 894
 895 static int hdpvr_get_ctrl(struct hdpvr_options *opt,
 896                           struct v4l2_ext_control *ctrl)
 897 {
 898         switch (ctrl->id) {
 899         case V4L2_CID_MPEG_AUDIO_ENCODING:
 900                 ctrl->value = opt->audio_codec;
 901                 break;
 902         case V4L2_CID_MPEG_VIDEO_ENCODING:
 903                 ctrl->value = V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC;
 904                 break;
 905 /*      case V4L2_CID_MPEG_VIDEO_B_FRAMES: */
 906 /*              ctrl->value = (opt->gop_mode & 0x2) ? 0 : 128; */
 907 /*              break; */
 908         case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
 909                 ctrl->value = opt->bitrate_mode == HDPVR_CONSTANT
 910                         ? V4L2_MPEG_VIDEO_BITRATE_MODE_CBR
 911                         : V4L2_MPEG_VIDEO_BITRATE_MODE_VBR;
 912                 break;
 913         case V4L2_CID_MPEG_VIDEO_BITRATE:
 914                 ctrl->value = opt->bitrate * 100000;
 915                 break;
 916         case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
 917                 ctrl->value = opt->peak_bitrate * 100000;
 918                 break;
 919         case V4L2_CID_MPEG_STREAM_TYPE:
 920                 ctrl->value = V4L2_MPEG_STREAM_TYPE_MPEG2_TS;
 921                 break;
 922         default:
 923                 return -EINVAL;
 924         }
 925         return 0;
 926 }
 927
 928 static int vidioc_g_ext_ctrls(struct file *file, void *priv,
 929                               struct v4l2_ext_controls *ctrls)
 930 {
 931         struct hdpvr_fh *fh = file->private_data;
 932         struct hdpvr_device *dev = fh->dev;
 933         int i, err = 0;
 934
 935         if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
 936                 for (i = 0; i < ctrls->count; i++) {
 937                         struct v4l2_ext_control *ctrl = ctrls->controls + i;
 938
 939                         err = hdpvr_get_ctrl(&dev->options, ctrl);
 940                         if (err) {
 941                                 ctrls->error_idx = i;
 942                                 break;
 943                         }
 944                 }
 945                 return err;
 946
 947         }
 948
 949         return -EINVAL;
 950 }
 951
 952
 953 static int hdpvr_try_ctrl(struct v4l2_ext_control *ctrl, int ac3)
 954 {
 955         int ret = -EINVAL;
 956
 957         switch (ctrl->id) {
 958         case V4L2_CID_MPEG_AUDIO_ENCODING:
 959                 if (ctrl->value == V4L2_MPEG_AUDIO_ENCODING_AAC ||
 960                     (ac3 && ctrl->value == V4L2_MPEG_AUDIO_ENCODING_AC3))
 961                         ret = 0;
 962                 break;
 963         case V4L2_CID_MPEG_VIDEO_ENCODING:
 964                 if (ctrl->value == V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC)
 965                         ret = 0;
 966                 break;
 967 /*      case V4L2_CID_MPEG_VIDEO_B_FRAMES: */
 968 /*              if (ctrl->value == 0 || ctrl->value == 128) */
 969 /*                      ret = 0; */
 970 /*              break; */
 971         case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
 972                 if (ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR ||
 973                     ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR)
 974                         ret = 0;
 975                 break;
 976         case V4L2_CID_MPEG_VIDEO_BITRATE:
 977         {
 978                 uint bitrate = ctrl->value / 100000;
 979                 if (bitrate >= 10 && bitrate <= 135)
 980                         ret = 0;
 981                 break;
 982         }
 983         case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
 984         {
 985                 uint peak_bitrate = ctrl->value / 100000;
 986                 if (peak_bitrate >= 10 && peak_bitrate <= 202)
 987                         ret = 0;
 988                 break;
 989         }
 990         case V4L2_CID_MPEG_STREAM_TYPE:
 991                 if (ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_TS)
 992                         ret = 0;
 993                 break;
 994         default:
 995                 return -EINVAL;
 996         }
 997         return ret;
 998 }
 999
1000 static int vidioc_try_ext_ctrls(struct file *file, void *priv,
1001                                 struct v4l2_ext_controls *ctrls)
1002 {
1003         struct hdpvr_fh *fh = file->private_data;
1004         struct hdpvr_device *dev = fh->dev;
1005         int i, err = 0;
1006
1007         if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
1008                 for (i = 0; i < ctrls->count; i++) {
1009                         struct v4l2_ext_control *ctrl = ctrls->controls + i;
1010
1011                         err = hdpvr_try_ctrl(ctrl,
1012                                              dev->flags & HDPVR_FLAG_AC3_CAP);
1013                         if (err) {
1014                                 ctrls->error_idx = i;
1015                                 break;
1016                         }
1017                 }
1018                 return err;
1019         }
1020
1021         return -EINVAL;
1022 }
1023
1024
1025 static int hdpvr_set_ctrl(struct hdpvr_device *dev,
1026                           struct v4l2_ext_control *ctrl)
1027 {
1028         struct hdpvr_options *opt = &dev->options;
1029         int ret = 0;
1030
1031         switch (ctrl->id) {
1032         case V4L2_CID_MPEG_AUDIO_ENCODING:
1033                 if (dev->flags & HDPVR_FLAG_AC3_CAP) {
1034                         opt->audio_codec = ctrl->value;
1035                         ret = hdpvr_set_audio(dev, opt->audio_input,
1036                                               opt->audio_codec);
1037                 }
1038                 break;
1039         case V4L2_CID_MPEG_VIDEO_ENCODING:
1040                 break;
1041 /*      case V4L2_CID_MPEG_VIDEO_B_FRAMES: */
1042 /*              if (ctrl->value == 0 && !(opt->gop_mode & 0x2)) { */
1043 /*                      opt->gop_mode |= 0x2; */
1044 /*                      hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */
1045 /*                                        opt->gop_mode); */
1046 /*              } */
1047 /*              if (ctrl->value == 128 && opt->gop_mode & 0x2) { */
1048 /*                      opt->gop_mode &= ~0x2; */
1049 /*                      hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */
1050 /*                                        opt->gop_mode); */
1051 /*              } */
1052 /*              break; */
1053         case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
1054                 if (ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR &&
1055                     opt->bitrate_mode != HDPVR_CONSTANT) {
1056                         opt->bitrate_mode = HDPVR_CONSTANT;
1057                         hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE,
1058                                           opt->bitrate_mode);
1059                 }
1060                 if (ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR &&
1061                     opt->bitrate_mode == HDPVR_CONSTANT) {
1062                         opt->bitrate_mode = HDPVR_VARIABLE_AVERAGE;
1063                         hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE,
1064                                           opt->bitrate_mode);
1065                 }
1066                 break;
1067         case V4L2_CID_MPEG_VIDEO_BITRATE: {
1068                 uint bitrate = ctrl->value / 100000;
1069
1070                 opt->bitrate = bitrate;
1071                 if (bitrate >= opt->peak_bitrate)
1072                         opt->peak_bitrate = bitrate+1;
1073
1074                 hdpvr_set_bitrate(dev);
1075                 break;
1076         }
1077         case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: {
1078                 uint peak_bitrate = ctrl->value / 100000;
1079
1080                 if (opt->bitrate_mode == HDPVR_CONSTANT)
1081                         break;
1082
1083                 if (opt->bitrate < peak_bitrate) {
1084                         opt->peak_bitrate = peak_bitrate;
1085                         hdpvr_set_bitrate(dev);
1086                 } else
1087                         ret = -EINVAL;
1088                 break;
1089         }
1090         case V4L2_CID_MPEG_STREAM_TYPE:
1091                 break;
1092         default:
1093                 return -EINVAL;
1094         }
1095         return ret;
1096 }
1097
1098 static int vidioc_s_ext_ctrls(struct file *file, void *priv,
1099                               struct v4l2_ext_controls *ctrls)
1100 {
1101         struct hdpvr_fh *fh = file->private_data;
1102         struct hdpvr_device *dev = fh->dev;
1103         int i, err = 0;
1104
1105         if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
1106                 for (i = 0; i < ctrls->count; i++) {
1107                         struct v4l2_ext_control *ctrl = ctrls->controls + i;
1108
1109                         err = hdpvr_try_ctrl(ctrl,
1110                                              dev->flags & HDPVR_FLAG_AC3_CAP);
1111                         if (err) {
1112                                 ctrls->error_idx = i;
1113                                 break;
1114                         }
1115                         err = hdpvr_set_ctrl(dev, ctrl);
1116                         if (err) {
1117                                 ctrls->error_idx = i;
1118                                 break;
1119                         }
1120                 }
1121                 return err;
1122
1123         }
1124
1125         return -EINVAL;
1126 }
1127
1128 static int vidioc_enum_fmt_vid_cap(struct file *file, void *private_data,
1129                                     struct v4l2_fmtdesc *f)
1130 {
1131
1132         if (f->index != 0 || f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1133                 return -EINVAL;
1134
1135         f->flags = V4L2_FMT_FLAG_COMPRESSED;
1136         strncpy(f->description, "MPEG2-TS with AVC/AAC streams", 32);
1137         f->pixelformat = V4L2_PIX_FMT_MPEG;
1138
1139         return 0;
1140 }
1141
1142 static int vidioc_g_fmt_vid_cap(struct file *file, void *private_data,
1143                                 struct v4l2_format *f)
1144 {
1145         struct hdpvr_fh *fh = file->private_data;
1146         struct hdpvr_device *dev = fh->dev;
1147         struct hdpvr_video_info *vid_info;
1148
1149         if (!dev)
1150                 return -ENODEV;
1151
1152         vid_info = get_video_info(dev);
1153         if (!vid_info)
1154                 return -EFAULT;
1155
1156         f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1157         f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
1158         f->fmt.pix.width        = vid_info->width;
1159         f->fmt.pix.height       = vid_info->height;
1160         f->fmt.pix.sizeimage    = dev->bulk_in_size;
1161         f->fmt.pix.colorspace   = 0;
1162         f->fmt.pix.bytesperline = 0;
1163         f->fmt.pix.field        = V4L2_FIELD_ANY;
1164
1165         kfree(vid_info);
1166         return 0;
1167 }
1168
1169 static int vidioc_encoder_cmd(struct file *filp, void *priv,
1170                                struct v4l2_encoder_cmd *a)
1171 {
1172         struct hdpvr_fh *fh = filp->private_data;
1173         struct hdpvr_device *dev = fh->dev;
1174         int res;
1175
1176         mutex_lock(&dev->io_mutex);
1177
1178         memset(&a->raw, 0, sizeof(a->raw));
1179         switch (a->cmd) {
1180         case V4L2_ENC_CMD_START:
1181                 a->flags = 0;
1182                 res = hdpvr_start_streaming(dev);
1183                 break;
1184         case V4L2_ENC_CMD_STOP:
1185                 res = hdpvr_stop_streaming(dev);
1186                 break;
1187         default:
1188                 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
1189                          "Unsupported encoder cmd %d\n", a->cmd);
1190                 res = -EINVAL;
1191         }
1192         mutex_unlock(&dev->io_mutex);
1193         return res;
1194 }
1195
1196 static int vidioc_try_encoder_cmd(struct file *filp, void *priv,
1197                                         struct v4l2_encoder_cmd *a)
1198 {
1199         switch (a->cmd) {
1200         case V4L2_ENC_CMD_START:
1201         case V4L2_ENC_CMD_STOP:
1202                 return 0;
1203         default:
1204                 return -EINVAL;
1205         }
1206 }
1207
1208 static const struct v4l2_ioctl_ops hdpvr_ioctl_ops = {
1209         .vidioc_querycap        = vidioc_querycap,
1210         .vidioc_s_std           = vidioc_s_std,
1211         .vidioc_enum_input      = vidioc_enum_input,
1212         .vidioc_g_input         = vidioc_g_input,
1213         .vidioc_s_input         = vidioc_s_input,
1214         .vidioc_enumaudio       = vidioc_enumaudio,
1215         .vidioc_g_audio         = vidioc_g_audio,
1216         .vidioc_s_audio         = vidioc_s_audio,
1217         .vidioc_queryctrl       = vidioc_queryctrl,
1218         .vidioc_g_ctrl          = vidioc_g_ctrl,
1219         .vidioc_s_ctrl          = vidioc_s_ctrl,
1220         .vidioc_g_ext_ctrls     = vidioc_g_ext_ctrls,
1221         .vidioc_s_ext_ctrls     = vidioc_s_ext_ctrls,
1222         .vidioc_try_ext_ctrls   = vidioc_try_ext_ctrls,
1223         .vidioc_enum_fmt_vid_cap        = vidioc_enum_fmt_vid_cap,
1224         .vidioc_g_fmt_vid_cap           = vidioc_g_fmt_vid_cap,
1225         .vidioc_encoder_cmd     = vidioc_encoder_cmd,
1226         .vidioc_try_encoder_cmd = vidioc_try_encoder_cmd,
1227 };
1228
1229 static void hdpvr_device_release(struct video_device *vdev)
1230 {
1231         struct hdpvr_device *dev = video_get_drvdata(vdev);
1232
1233         hdpvr_delete(dev);
1234         mutex_lock(&dev->io_mutex);
1235         destroy_workqueue(dev->workqueue);
1236         mutex_unlock(&dev->io_mutex);
1237
1238         v4l2_device_unregister(&dev->v4l2_dev);
1239
1240         /* deregister I2C adapter */
1241 #if defined(CONFIG_I2C) || (CONFIG_I2C_MODULE)
1242         mutex_lock(&dev->i2c_mutex);
1243         i2c_del_adapter(&dev->i2c_adapter);
1244         mutex_unlock(&dev->i2c_mutex);
1245 #endif /* CONFIG_I2C */
1246
1247         kfree(dev->usbc_buf);
1248         kfree(dev);
1249 }
1250
1251 static const struct video_device hdpvr_video_template = {
1252 /*      .type                   = VFL_TYPE_GRABBER, */
1253 /*      .type2                  = VID_TYPE_CAPTURE | VID_TYPE_MPEG_ENCODER, */
1254         .fops                   = &hdpvr_fops,
1255         .release                = hdpvr_device_release,
1256         .ioctl_ops              = &hdpvr_ioctl_ops,
1257         .tvnorms                =
1258                 V4L2_STD_NTSC  | V4L2_STD_SECAM | V4L2_STD_PAL_B |
1259                 V4L2_STD_PAL_G | V4L2_STD_PAL_H | V4L2_STD_PAL_I |
1260                 V4L2_STD_PAL_D | V4L2_STD_PAL_M | V4L2_STD_PAL_N |
1261                 V4L2_STD_PAL_60,
1262         .current_norm           = V4L2_STD_NTSC | V4L2_STD_PAL_M |
1263                 V4L2_STD_PAL_60,
1264 };
1265
1266 int hdpvr_register_videodev(struct hdpvr_device *dev, struct device *parent,
1267                             int devnum)
1268 {
1269         /* setup and register video device */
1270         dev->video_dev = video_device_alloc();
1271         if (!dev->video_dev) {
1272                 v4l2_err(&dev->v4l2_dev, "video_device_alloc() failed\n");
1273                 goto error;
1274         }
1275
1276         *(dev->video_dev) = hdpvr_video_template;
1277         strcpy(dev->video_dev->name, "Hauppauge HD PVR");
1278         dev->video_dev->parent = parent;
1279         video_set_drvdata(dev->video_dev, dev);
1280
1281         if (video_register_device(dev->video_dev, VFL_TYPE_GRABBER, devnum)) {
1282                 v4l2_err(&dev->v4l2_dev, "video_device registration failed\n");
1283                 goto error;
1284         }
1285
1286         return 0;
1287 error:
1288         return -ENOMEM;
1289 }