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/kconfig.h>
  14 #include <linux/errno.h>
  15 #include <linux/init.h>
  16 #include <linux/slab.h>
  17 #include <linux/module.h>
  18 #include <linux/uaccess.h>
  19 #include <linux/usb.h>
  20 #include <linux/mutex.h>
  21 #include <linux/workqueue.h>
  22
  23 #include <linux/videodev2.h>
  24 #include <linux/v4l2-dv-timings.h>
  25 #include <media/v4l2-dev.h>
  26 #include <media/v4l2-common.h>
  27 #include <media/v4l2-dv-timings.h>
  28 #include <media/v4l2-ioctl.h>
  29 #include <media/v4l2-event.h>
  30 #include "hdpvr.h"
  31
  32 #define BULK_URB_TIMEOUT   90 /* 0.09 seconds */
  33
  34 #define print_buffer_status() { \
  35                 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,       \
  36                          "%s:%d buffer stat: %d free, %d proc\n",       \
  37                          __func__, __LINE__,                            \
  38                          list_size(&dev->free_buff_list),               \
  39                          list_size(&dev->rec_buff_list)); }
  40
  41 static const struct v4l2_dv_timings hdpvr_dv_timings[] = {
  42         V4L2_DV_BT_CEA_720X480I59_94,
  43         V4L2_DV_BT_CEA_720X576I50,
  44         V4L2_DV_BT_CEA_720X480P59_94,
  45         V4L2_DV_BT_CEA_720X576P50,
  46         V4L2_DV_BT_CEA_1280X720P50,
  47         V4L2_DV_BT_CEA_1280X720P60,
  48         V4L2_DV_BT_CEA_1920X1080I50,
  49         V4L2_DV_BT_CEA_1920X1080I60,
  50 };
  51
  52 /* Use 480i59 as the default timings */
  53 #define HDPVR_DEF_DV_TIMINGS_IDX (0)
  54
  55 struct hdpvr_fh {
  56         struct v4l2_fh fh;
  57         bool legacy_mode;
  58 };
  59
  60 static uint list_size(struct list_head *list)
  61 {
  62         struct list_head *tmp;
  63         uint count = 0;
  64
  65         list_for_each(tmp, list) {
  66                 count++;
  67         }
  68
  69         return count;
  70 }
  71
  72 /*=========================================================================*/
  73 /* urb callback */
  74 static void hdpvr_read_bulk_callback(struct urb *urb)
  75 {
  76         struct hdpvr_buffer *buf = (struct hdpvr_buffer *)urb->context;
  77         struct hdpvr_device *dev = buf->dev;
  78
  79         /* marking buffer as received and wake waiting */
  80         buf->status = BUFSTAT_READY;
  81         wake_up_interruptible(&dev->wait_data);
  82 }
  83
  84 /*=========================================================================*/
  85 /* buffer bits */
  86
  87 /* function expects dev->io_mutex to be hold by caller */
  88 int hdpvr_cancel_queue(struct hdpvr_device *dev)
  89 {
  90         struct hdpvr_buffer *buf;
  91
  92         list_for_each_entry(buf, &dev->rec_buff_list, buff_list) {
  93                 usb_kill_urb(buf->urb);
  94                 buf->status = BUFSTAT_AVAILABLE;
  95         }
  96
  97         list_splice_init(&dev->rec_buff_list, dev->free_buff_list.prev);
  98
  99         return 0;
 100 }
 101
 102 static int hdpvr_free_queue(struct list_head *q)
 103 {
 104         struct list_head *tmp;
 105         struct list_head *p;
 106         struct hdpvr_buffer *buf;
 107         struct urb *urb;
 108
 109         for (p = q->next; p != q;) {
 110                 buf = list_entry(p, struct hdpvr_buffer, buff_list);
 111
 112                 urb = buf->urb;
 113                 usb_free_coherent(urb->dev, urb->transfer_buffer_length,
 114                                   urb->transfer_buffer, urb->transfer_dma);
 115                 usb_free_urb(urb);
 116                 tmp = p->next;
 117                 list_del(p);
 118                 kfree(buf);
 119                 p = tmp;
 120         }
 121
 122         return 0;
 123 }
 124
 125 /* function expects dev->io_mutex to be hold by caller */
 126 int hdpvr_free_buffers(struct hdpvr_device *dev)
 127 {
 128         hdpvr_cancel_queue(dev);
 129
 130         hdpvr_free_queue(&dev->free_buff_list);
 131         hdpvr_free_queue(&dev->rec_buff_list);
 132
 133         return 0;
 134 }
 135
 136 /* function expects dev->io_mutex to be hold by caller */
 137 int hdpvr_alloc_buffers(struct hdpvr_device *dev, uint count)
 138 {
 139         uint i;
 140         int retval = -ENOMEM;
 141         u8 *mem;
 142         struct hdpvr_buffer *buf;
 143         struct urb *urb;
 144
 145         v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
 146                  "allocating %u buffers\n", count);
 147
 148         for (i = 0; i < count; i++) {
 149
 150                 buf = kzalloc(sizeof(struct hdpvr_buffer), GFP_KERNEL);
 151                 if (!buf) {
 152                         v4l2_err(&dev->v4l2_dev, "cannot allocate buffer\n");
 153                         goto exit;
 154                 }
 155                 buf->dev = dev;
 156
 157                 urb = usb_alloc_urb(0, GFP_KERNEL);
 158                 if (!urb) {
 159                         v4l2_err(&dev->v4l2_dev, "cannot allocate urb\n");
 160                         goto exit_urb;
 161                 }
 162                 buf->urb = urb;
 163
 164                 mem = usb_alloc_coherent(dev->udev, dev->bulk_in_size, GFP_KERNEL,
 165                                          &urb->transfer_dma);
 166                 if (!mem) {
 167                         v4l2_err(&dev->v4l2_dev,
 168                                  "cannot allocate usb transfer buffer\n");
 169                         goto exit_urb_buffer;
 170                 }
 171
 172                 usb_fill_bulk_urb(buf->urb, dev->udev,
 173                                   usb_rcvbulkpipe(dev->udev,
 174                                                   dev->bulk_in_endpointAddr),
 175                                   mem, dev->bulk_in_size,
 176                                   hdpvr_read_bulk_callback, buf);
 177
 178                 buf->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 179                 buf->status = BUFSTAT_AVAILABLE;
 180                 list_add_tail(&buf->buff_list, &dev->free_buff_list);
 181         }
 182         return 0;
 183 exit_urb_buffer:
 184         usb_free_urb(urb);
 185 exit_urb:
 186         kfree(buf);
 187 exit:
 188         hdpvr_free_buffers(dev);
 189         return retval;
 190 }
 191
 192 static int hdpvr_submit_buffers(struct hdpvr_device *dev)
 193 {
 194         struct hdpvr_buffer *buf;
 195         struct urb *urb;
 196         int ret = 0, err_count = 0;
 197
 198         mutex_lock(&dev->io_mutex);
 199
 200         while (dev->status == STATUS_STREAMING &&
 201                !list_empty(&dev->free_buff_list)) {
 202
 203                 buf = list_entry(dev->free_buff_list.next, struct hdpvr_buffer,
 204                                  buff_list);
 205                 if (buf->status != BUFSTAT_AVAILABLE) {
 206                         v4l2_err(&dev->v4l2_dev,
 207                                  "buffer not marked as available\n");
 208                         ret = -EFAULT;
 209                         goto err;
 210                 }
 211
 212                 urb = buf->urb;
 213                 urb->status = 0;
 214                 urb->actual_length = 0;
 215                 ret = usb_submit_urb(urb, GFP_KERNEL);
 216                 if (ret) {
 217                         v4l2_err(&dev->v4l2_dev,
 218                                  "usb_submit_urb in %s returned %d\n",
 219                                  __func__, ret);
 220                         if (++err_count > 2)
 221                                 break;
 222                         continue;
 223                 }
 224                 buf->status = BUFSTAT_INPROGRESS;
 225                 list_move_tail(&buf->buff_list, &dev->rec_buff_list);
 226         }
 227 err:
 228         print_buffer_status();
 229         mutex_unlock(&dev->io_mutex);
 230         return ret;
 231 }
 232
 233 static struct hdpvr_buffer *hdpvr_get_next_buffer(struct hdpvr_device *dev)
 234 {
 235         struct hdpvr_buffer *buf;
 236
 237         mutex_lock(&dev->io_mutex);
 238
 239         if (list_empty(&dev->rec_buff_list)) {
 240                 mutex_unlock(&dev->io_mutex);
 241                 return NULL;
 242         }
 243
 244         buf = list_entry(dev->rec_buff_list.next, struct hdpvr_buffer,
 245                          buff_list);
 246         mutex_unlock(&dev->io_mutex);
 247
 248         return buf;
 249 }
 250
 251 static void hdpvr_transmit_buffers(struct work_struct *work)
 252 {
 253         struct hdpvr_device *dev = container_of(work, struct hdpvr_device,
 254                                                 worker);
 255
 256         while (dev->status == STATUS_STREAMING) {
 257
 258                 if (hdpvr_submit_buffers(dev)) {
 259                         v4l2_err(&dev->v4l2_dev, "couldn't submit buffers\n");
 260                         goto error;
 261                 }
 262                 if (wait_event_interruptible(dev->wait_buffer,
 263                                 !list_empty(&dev->free_buff_list) ||
 264                                              dev->status != STATUS_STREAMING))
 265                         goto error;
 266         }
 267
 268         v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
 269                  "transmit worker exited\n");
 270         return;
 271 error:
 272         v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
 273                  "transmit buffers errored\n");
 274         dev->status = STATUS_ERROR;
 275 }
 276
 277 /* function expects dev->io_mutex to be hold by caller */
 278 static int hdpvr_start_streaming(struct hdpvr_device *dev)
 279 {
 280         int ret;
 281         struct hdpvr_video_info vidinf;
 282
 283         if (dev->status == STATUS_STREAMING)
 284                 return 0;
 285         if (dev->status != STATUS_IDLE)
 286                 return -EAGAIN;
 287
 288         ret = get_video_info(dev, &vidinf);
 289         if (ret < 0)
 290                 return ret;
 291
 292         if (!vidinf.valid) {
 293                 msleep(250);
 294                 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
 295                                 "no video signal at input %d\n", dev->options.video_input);
 296                 return -EAGAIN;
 297         }
 298
 299         v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 300                         "video signal: %dx%d@%dhz\n", vidinf.width,
 301                         vidinf.height, vidinf.fps);
 302
 303         /* start streaming 2 request */
 304         ret = usb_control_msg(dev->udev,
 305                         usb_sndctrlpipe(dev->udev, 0),
 306                         0xb8, 0x38, 0x1, 0, NULL, 0, 8000);
 307         v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 308                         "encoder start control request returned %d\n", ret);
 309         if (ret < 0)
 310                 return ret;
 311
 312         ret = hdpvr_config_call(dev, CTRL_START_STREAMING_VALUE, 0x00);
 313         if (ret)
 314                 return ret;
 315
 316         dev->status = STATUS_STREAMING;
 317
 318         INIT_WORK(&dev->worker, hdpvr_transmit_buffers);
 319         schedule_work(&dev->worker);
 320
 321         v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 322                         "streaming started\n");
 323
 324         return 0;
 325 }
 326
 327
 328 /* function expects dev->io_mutex to be hold by caller */
 329 static int hdpvr_stop_streaming(struct hdpvr_device *dev)
 330 {
 331         int actual_length;
 332         uint c = 0;
 333         u8 *buf;
 334
 335         if (dev->status == STATUS_IDLE)
 336                 return 0;
 337         else if (dev->status != STATUS_STREAMING)
 338                 return -EAGAIN;
 339
 340         buf = kmalloc(dev->bulk_in_size, GFP_KERNEL);
 341         if (!buf)
 342                 v4l2_err(&dev->v4l2_dev, "failed to allocate temporary buffer "
 343                          "for emptying the internal device buffer. "
 344                          "Next capture start will be slow\n");
 345
 346         dev->status = STATUS_SHUTTING_DOWN;
 347         hdpvr_config_call(dev, CTRL_STOP_STREAMING_VALUE, 0x00);
 348         mutex_unlock(&dev->io_mutex);
 349
 350         wake_up_interruptible(&dev->wait_buffer);
 351         msleep(50);
 352
 353         flush_work(&dev->worker);
 354
 355         mutex_lock(&dev->io_mutex);
 356         /* kill the still outstanding urbs */
 357         hdpvr_cancel_queue(dev);
 358
 359         /* emptying the device buffer beforeshutting it down */
 360         while (buf && ++c < 500 &&
 361                !usb_bulk_msg(dev->udev,
 362                              usb_rcvbulkpipe(dev->udev,
 363                                              dev->bulk_in_endpointAddr),
 364                              buf, dev->bulk_in_size, &actual_length,
 365                              BULK_URB_TIMEOUT)) {
 366                 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 367                          "%2d: got %d bytes\n", c, actual_length);
 368         }
 369         kfree(buf);
 370         v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 371                  "used %d urbs to empty device buffers\n", c-1);
 372         msleep(10);
 373
 374         dev->status = STATUS_IDLE;
 375
 376         return 0;
 377 }
 378
 379
 380 /*=======================================================================*/
 381 /*
 382  * video 4 linux 2 file operations
 383  */
 384
 385 static int hdpvr_open(struct file *file)
 386 {
 387         struct hdpvr_fh *fh = kzalloc(sizeof(*fh), GFP_KERNEL);
 388
 389         if (fh == NULL)
 390                 return -ENOMEM;
 391         fh->legacy_mode = true;
 392         v4l2_fh_init(&fh->fh, video_devdata(file));
 393         v4l2_fh_add(&fh->fh);
 394         file->private_data = fh;
 395         return 0;
 396 }
 397
 398 static int hdpvr_release(struct file *file)
 399 {
 400         struct hdpvr_device *dev = video_drvdata(file);
 401
 402         mutex_lock(&dev->io_mutex);
 403         if (file->private_data == dev->owner) {
 404                 hdpvr_stop_streaming(dev);
 405                 dev->owner = NULL;
 406         }
 407         mutex_unlock(&dev->io_mutex);
 408
 409         return v4l2_fh_release(file);
 410 }
 411
 412 /*
 413  * hdpvr_v4l2_read()
 414  * will allocate buffers when called for the first time
 415  */
 416 static ssize_t hdpvr_read(struct file *file, char __user *buffer, size_t count,
 417                           loff_t *pos)
 418 {
 419         struct hdpvr_device *dev = video_drvdata(file);
 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         mutex_lock(&dev->io_mutex);
 429         if (dev->status == STATUS_IDLE) {
 430                 if (hdpvr_start_streaming(dev)) {
 431                         v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
 432                                  "start_streaming failed\n");
 433                         ret = -EIO;
 434                         msleep(200);
 435                         dev->status = STATUS_IDLE;
 436                         mutex_unlock(&dev->io_mutex);
 437                         goto err;
 438                 }
 439                 dev->owner = file->private_data;
 440                 print_buffer_status();
 441         }
 442         mutex_unlock(&dev->io_mutex);
 443
 444         /* wait for the first buffer */
 445         if (!(file->f_flags & O_NONBLOCK)) {
 446                 if (wait_event_interruptible(dev->wait_data,
 447                                              hdpvr_get_next_buffer(dev)))
 448                         return -ERESTARTSYS;
 449         }
 450
 451         buf = hdpvr_get_next_buffer(dev);
 452
 453         while (count > 0 && buf) {
 454
 455                 if (buf->status != BUFSTAT_READY &&
 456                     dev->status != STATUS_DISCONNECTED) {
 457                         /* return nonblocking */
 458                         if (file->f_flags & O_NONBLOCK) {
 459                                 if (!ret)
 460                                         ret = -EAGAIN;
 461                                 goto err;
 462                         }
 463
 464                         if (wait_event_interruptible(dev->wait_data,
 465                                               buf->status == BUFSTAT_READY))
 466                                 return -ERESTARTSYS;
 467                 }
 468
 469                 if (buf->status != BUFSTAT_READY)
 470                         break;
 471
 472                 /* set remaining bytes to copy */
 473                 urb = buf->urb;
 474                 rem = urb->actual_length - buf->pos;
 475                 cnt = rem > count ? count : rem;
 476
 477                 if (copy_to_user(buffer, urb->transfer_buffer + buf->pos,
 478                                  cnt)) {
 479                         v4l2_err(&dev->v4l2_dev, "read: copy_to_user failed\n");
 480                         if (!ret)
 481                                 ret = -EFAULT;
 482                         goto err;
 483                 }
 484
 485                 buf->pos += cnt;
 486                 count -= cnt;
 487                 buffer += cnt;
 488                 ret += cnt;
 489
 490                 /* finished, take next buffer */
 491                 if (buf->pos == urb->actual_length) {
 492                         mutex_lock(&dev->io_mutex);
 493                         buf->pos = 0;
 494                         buf->status = BUFSTAT_AVAILABLE;
 495
 496                         list_move_tail(&buf->buff_list, &dev->free_buff_list);
 497
 498                         print_buffer_status();
 499
 500                         mutex_unlock(&dev->io_mutex);
 501
 502                         wake_up_interruptible(&dev->wait_buffer);
 503
 504                         buf = hdpvr_get_next_buffer(dev);
 505                 }
 506         }
 507 err:
 508         if (!ret && !buf)
 509                 ret = -EAGAIN;
 510         return ret;
 511 }
 512
 513 static unsigned int hdpvr_poll(struct file *filp, poll_table *wait)
 514 {
 515         unsigned long req_events = poll_requested_events(wait);
 516         struct hdpvr_buffer *buf = NULL;
 517         struct hdpvr_device *dev = video_drvdata(filp);
 518         unsigned int mask = v4l2_ctrl_poll(filp, wait);
 519
 520         if (!(req_events & (POLLIN | POLLRDNORM)))
 521                 return mask;
 522
 523         mutex_lock(&dev->io_mutex);
 524
 525         if (dev->status == STATUS_IDLE) {
 526                 if (hdpvr_start_streaming(dev)) {
 527                         v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 528                                  "start_streaming failed\n");
 529                         dev->status = STATUS_IDLE;
 530                 } else {
 531                         dev->owner = filp->private_data;
 532                 }
 533
 534                 print_buffer_status();
 535         }
 536         mutex_unlock(&dev->io_mutex);
 537
 538         buf = hdpvr_get_next_buffer(dev);
 539         /* only wait if no data is available */
 540         if (!buf || buf->status != BUFSTAT_READY) {
 541                 poll_wait(filp, &dev->wait_data, wait);
 542                 buf = hdpvr_get_next_buffer(dev);
 543         }
 544         if (buf && buf->status == BUFSTAT_READY)
 545                 mask |= POLLIN | POLLRDNORM;
 546
 547         return mask;
 548 }
 549
 550
 551 static const struct v4l2_file_operations hdpvr_fops = {
 552         .owner          = THIS_MODULE,
 553         .open           = hdpvr_open,
 554         .release        = hdpvr_release,
 555         .read           = hdpvr_read,
 556         .poll           = hdpvr_poll,
 557         .unlocked_ioctl = video_ioctl2,
 558 };
 559
 560 /*=======================================================================*/
 561 /*
 562  * V4L2 ioctl handling
 563  */
 564
 565 static int vidioc_querycap(struct file *file, void  *priv,
 566                            struct v4l2_capability *cap)
 567 {
 568         struct hdpvr_device *dev = video_drvdata(file);
 569
 570         strcpy(cap->driver, "hdpvr");
 571         strcpy(cap->card, "Hauppauge HD PVR");
 572         usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
 573         cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_AUDIO |
 574                             V4L2_CAP_READWRITE;
 575         cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
 576         return 0;
 577 }
 578
 579 static int vidioc_s_std(struct file *file, void *_fh,
 580                         v4l2_std_id std)
 581 {
 582         struct hdpvr_device *dev = video_drvdata(file);
 583         struct hdpvr_fh *fh = _fh;
 584         u8 std_type = 1;
 585
 586         if (!fh->legacy_mode && dev->options.video_input == HDPVR_COMPONENT)
 587                 return -ENODATA;
 588         if (dev->status != STATUS_IDLE)
 589                 return -EBUSY;
 590         if (std & V4L2_STD_525_60)
 591                 std_type = 0;
 592         dev->cur_std = std;
 593         dev->width = 720;
 594         dev->height = std_type ? 576 : 480;
 595
 596         return hdpvr_config_call(dev, CTRL_VIDEO_STD_TYPE, std_type);
 597 }
 598
 599 static int vidioc_g_std(struct file *file, void *_fh,
 600                         v4l2_std_id *std)
 601 {
 602         struct hdpvr_device *dev = video_drvdata(file);
 603         struct hdpvr_fh *fh = _fh;
 604
 605         if (!fh->legacy_mode && dev->options.video_input == HDPVR_COMPONENT)
 606                 return -ENODATA;
 607         *std = dev->cur_std;
 608         return 0;
 609 }
 610
 611 static int vidioc_querystd(struct file *file, void *_fh, v4l2_std_id *a)
 612 {
 613         struct hdpvr_device *dev = video_drvdata(file);
 614         struct hdpvr_video_info vid_info;
 615         struct hdpvr_fh *fh = _fh;
 616         int ret;
 617
 618         *a = V4L2_STD_UNKNOWN;
 619         if (dev->options.video_input == HDPVR_COMPONENT)
 620                 return fh->legacy_mode ? 0 : -ENODATA;
 621         ret = get_video_info(dev, &vid_info);
 622         if (vid_info.valid && vid_info.width == 720 &&
 623             (vid_info.height == 480 || vid_info.height == 576)) {
 624                 *a = (vid_info.height == 480) ?
 625                         V4L2_STD_525_60 : V4L2_STD_625_50;
 626         }
 627         return ret;
 628 }
 629
 630 static int vidioc_s_dv_timings(struct file *file, void *_fh,
 631                                     struct v4l2_dv_timings *timings)
 632 {
 633         struct hdpvr_device *dev = video_drvdata(file);
 634         struct hdpvr_fh *fh = _fh;
 635         int i;
 636
 637         fh->legacy_mode = false;
 638         if (dev->options.video_input)
 639                 return -ENODATA;
 640         if (dev->status != STATUS_IDLE)
 641                 return -EBUSY;
 642         for (i = 0; i < ARRAY_SIZE(hdpvr_dv_timings); i++)
 643                 if (v4l2_match_dv_timings(timings, hdpvr_dv_timings + i, 0, false))
 644                         break;
 645         if (i == ARRAY_SIZE(hdpvr_dv_timings))
 646                 return -EINVAL;
 647         dev->cur_dv_timings = hdpvr_dv_timings[i];
 648         dev->width = hdpvr_dv_timings[i].bt.width;
 649         dev->height = hdpvr_dv_timings[i].bt.height;
 650         return 0;
 651 }
 652
 653 static int vidioc_g_dv_timings(struct file *file, void *_fh,
 654                                     struct v4l2_dv_timings *timings)
 655 {
 656         struct hdpvr_device *dev = video_drvdata(file);
 657         struct hdpvr_fh *fh = _fh;
 658
 659         fh->legacy_mode = false;
 660         if (dev->options.video_input)
 661                 return -ENODATA;
 662         *timings = dev->cur_dv_timings;
 663         return 0;
 664 }
 665
 666 static int vidioc_query_dv_timings(struct file *file, void *_fh,
 667                                     struct v4l2_dv_timings *timings)
 668 {
 669         struct hdpvr_device *dev = video_drvdata(file);
 670         struct hdpvr_fh *fh = _fh;
 671         struct hdpvr_video_info vid_info;
 672         bool interlaced;
 673         int ret = 0;
 674         int i;
 675
 676         fh->legacy_mode = false;
 677         if (dev->options.video_input)
 678                 return -ENODATA;
 679         ret = get_video_info(dev, &vid_info);
 680         if (ret)
 681                 return ret;
 682         if (!vid_info.valid)
 683                 return -ENOLCK;
 684         interlaced = vid_info.fps <= 30;
 685         for (i = 0; i < ARRAY_SIZE(hdpvr_dv_timings); i++) {
 686                 const struct v4l2_bt_timings *bt = &hdpvr_dv_timings[i].bt;
 687                 unsigned hsize;
 688                 unsigned vsize;
 689                 unsigned fps;
 690
 691                 hsize = V4L2_DV_BT_FRAME_WIDTH(bt);
 692                 vsize = V4L2_DV_BT_FRAME_HEIGHT(bt);
 693                 fps = (unsigned)bt->pixelclock / (hsize * vsize);
 694                 if (bt->width != vid_info.width ||
 695                     bt->height != vid_info.height ||
 696                     bt->interlaced != interlaced ||
 697                     (fps != vid_info.fps && fps + 1 != vid_info.fps))
 698                         continue;
 699                 *timings = hdpvr_dv_timings[i];
 700                 break;
 701         }
 702         if (i == ARRAY_SIZE(hdpvr_dv_timings))
 703                 ret = -ERANGE;
 704
 705         return ret;
 706 }
 707
 708 static int vidioc_enum_dv_timings(struct file *file, void *_fh,
 709                                     struct v4l2_enum_dv_timings *timings)
 710 {
 711         struct hdpvr_device *dev = video_drvdata(file);
 712         struct hdpvr_fh *fh = _fh;
 713
 714         fh->legacy_mode = false;
 715         memset(timings->reserved, 0, sizeof(timings->reserved));
 716         if (dev->options.video_input)
 717                 return -ENODATA;
 718         if (timings->index >= ARRAY_SIZE(hdpvr_dv_timings))
 719                 return -EINVAL;
 720         timings->timings = hdpvr_dv_timings[timings->index];
 721         return 0;
 722 }
 723
 724 static int vidioc_dv_timings_cap(struct file *file, void *_fh,
 725                                     struct v4l2_dv_timings_cap *cap)
 726 {
 727         struct hdpvr_device *dev = video_drvdata(file);
 728         struct hdpvr_fh *fh = _fh;
 729
 730         fh->legacy_mode = false;
 731         if (dev->options.video_input)
 732                 return -ENODATA;
 733         cap->type = V4L2_DV_BT_656_1120;
 734         cap->bt.min_width = 720;
 735         cap->bt.max_width = 1920;
 736         cap->bt.min_height = 480;
 737         cap->bt.max_height = 1080;
 738         cap->bt.min_pixelclock = 27000000;
 739         cap->bt.max_pixelclock = 74250000;
 740         cap->bt.standards = V4L2_DV_BT_STD_CEA861;
 741         cap->bt.capabilities = V4L2_DV_BT_CAP_INTERLACED | V4L2_DV_BT_CAP_PROGRESSIVE;
 742         return 0;
 743 }
 744
 745 static const char *iname[] = {
 746         [HDPVR_COMPONENT] = "Component",
 747         [HDPVR_SVIDEO]    = "S-Video",
 748         [HDPVR_COMPOSITE] = "Composite",
 749 };
 750
 751 static int vidioc_enum_input(struct file *file, void *_fh, struct v4l2_input *i)
 752 {
 753         unsigned int n;
 754
 755         n = i->index;
 756         if (n >= HDPVR_VIDEO_INPUTS)
 757                 return -EINVAL;
 758
 759         i->type = V4L2_INPUT_TYPE_CAMERA;
 760
 761         strncpy(i->name, iname[n], sizeof(i->name) - 1);
 762         i->name[sizeof(i->name) - 1] = '\0';
 763
 764         i->audioset = 1<<HDPVR_RCA_FRONT | 1<<HDPVR_RCA_BACK | 1<<HDPVR_SPDIF;
 765
 766         i->capabilities = n ? V4L2_IN_CAP_STD : V4L2_IN_CAP_DV_TIMINGS;
 767         i->std = n ? V4L2_STD_ALL : 0;
 768
 769         return 0;
 770 }
 771
 772 static int vidioc_s_input(struct file *file, void *_fh,
 773                           unsigned int index)
 774 {
 775         struct hdpvr_device *dev = video_drvdata(file);
 776         int retval;
 777
 778         if (index >= HDPVR_VIDEO_INPUTS)
 779                 return -EINVAL;
 780
 781         if (dev->status != STATUS_IDLE)
 782                 return -EBUSY;
 783
 784         retval = hdpvr_config_call(dev, CTRL_VIDEO_INPUT_VALUE, index+1);
 785         if (!retval) {
 786                 dev->options.video_input = index;
 787                 /*
 788                  * Unfortunately gstreamer calls ENUMSTD and bails out if it
 789                  * won't find any formats, even though component input is
 790                  * selected. This means that we have to leave tvnorms at
 791                  * V4L2_STD_ALL. We cannot use the 'legacy' trick since
 792                  * tvnorms is set at the device node level and not at the
 793                  * filehandle level.
 794                  *
 795                  * Comment this out for now, but if the legacy mode can be
 796                  * removed in the future, then this code should be enabled
 797                  * again.
 798                 dev->video_dev.tvnorms =
 799                         (index != HDPVR_COMPONENT) ? V4L2_STD_ALL : 0;
 800                  */
 801         }
 802
 803         return retval;
 804 }
 805
 806 static int vidioc_g_input(struct file *file, void *private_data,
 807                           unsigned int *index)
 808 {
 809         struct hdpvr_device *dev = video_drvdata(file);
 810
 811         *index = dev->options.video_input;
 812         return 0;
 813 }
 814
 815
 816 static const char *audio_iname[] = {
 817         [HDPVR_RCA_FRONT] = "RCA front",
 818         [HDPVR_RCA_BACK]  = "RCA back",
 819         [HDPVR_SPDIF]     = "SPDIF",
 820 };
 821
 822 static int vidioc_enumaudio(struct file *file, void *priv,
 823                                 struct v4l2_audio *audio)
 824 {
 825         unsigned int n;
 826
 827         n = audio->index;
 828         if (n >= HDPVR_AUDIO_INPUTS)
 829                 return -EINVAL;
 830
 831         audio->capability = V4L2_AUDCAP_STEREO;
 832
 833         strncpy(audio->name, audio_iname[n], sizeof(audio->name) - 1);
 834         audio->name[sizeof(audio->name) - 1] = '\0';
 835
 836         return 0;
 837 }
 838
 839 static int vidioc_s_audio(struct file *file, void *private_data,
 840                           const struct v4l2_audio *audio)
 841 {
 842         struct hdpvr_device *dev = video_drvdata(file);
 843         int retval;
 844
 845         if (audio->index >= HDPVR_AUDIO_INPUTS)
 846                 return -EINVAL;
 847
 848         if (dev->status != STATUS_IDLE)
 849                 return -EBUSY;
 850
 851         retval = hdpvr_set_audio(dev, audio->index+1, dev->options.audio_codec);
 852         if (!retval)
 853                 dev->options.audio_input = audio->index;
 854
 855         return retval;
 856 }
 857
 858 static int vidioc_g_audio(struct file *file, void *private_data,
 859                           struct v4l2_audio *audio)
 860 {
 861         struct hdpvr_device *dev = video_drvdata(file);
 862
 863         audio->index = dev->options.audio_input;
 864         audio->capability = V4L2_AUDCAP_STEREO;
 865         strncpy(audio->name, audio_iname[audio->index], sizeof(audio->name));
 866         audio->name[sizeof(audio->name) - 1] = '\0';
 867         return 0;
 868 }
 869
 870 static int hdpvr_try_ctrl(struct v4l2_ctrl *ctrl)
 871 {
 872         struct hdpvr_device *dev =
 873                 container_of(ctrl->handler, struct hdpvr_device, hdl);
 874
 875         switch (ctrl->id) {
 876         case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
 877                 if (ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR &&
 878                     dev->video_bitrate->val >= dev->video_bitrate_peak->val)
 879                         dev->video_bitrate_peak->val =
 880                                         dev->video_bitrate->val + 100000;
 881                 break;
 882         }
 883         return 0;
 884 }
 885
 886 static int hdpvr_s_ctrl(struct v4l2_ctrl *ctrl)
 887 {
 888         struct hdpvr_device *dev =
 889                 container_of(ctrl->handler, struct hdpvr_device, hdl);
 890         struct hdpvr_options *opt = &dev->options;
 891         int ret = -EINVAL;
 892
 893         switch (ctrl->id) {
 894         case V4L2_CID_BRIGHTNESS:
 895                 ret = hdpvr_config_call(dev, CTRL_BRIGHTNESS, ctrl->val);
 896                 if (ret)
 897                         break;
 898                 dev->options.brightness = ctrl->val;
 899                 return 0;
 900         case V4L2_CID_CONTRAST:
 901                 ret = hdpvr_config_call(dev, CTRL_CONTRAST, ctrl->val);
 902                 if (ret)
 903                         break;
 904                 dev->options.contrast = ctrl->val;
 905                 return 0;
 906         case V4L2_CID_SATURATION:
 907                 ret = hdpvr_config_call(dev, CTRL_SATURATION, ctrl->val);
 908                 if (ret)
 909                         break;
 910                 dev->options.saturation = ctrl->val;
 911                 return 0;
 912         case V4L2_CID_HUE:
 913                 ret = hdpvr_config_call(dev, CTRL_HUE, ctrl->val);
 914                 if (ret)
 915                         break;
 916                 dev->options.hue = ctrl->val;
 917                 return 0;
 918         case V4L2_CID_SHARPNESS:
 919                 ret = hdpvr_config_call(dev, CTRL_SHARPNESS, ctrl->val);
 920                 if (ret)
 921                         break;
 922                 dev->options.sharpness = ctrl->val;
 923                 return 0;
 924         case V4L2_CID_MPEG_AUDIO_ENCODING:
 925                 if (dev->flags & HDPVR_FLAG_AC3_CAP) {
 926                         opt->audio_codec = ctrl->val;
 927                         return hdpvr_set_audio(dev, opt->audio_input + 1,
 928                                               opt->audio_codec);
 929                 }
 930                 return 0;
 931         case V4L2_CID_MPEG_VIDEO_ENCODING:
 932                 return 0;
 933 /*      case V4L2_CID_MPEG_VIDEO_B_FRAMES: */
 934 /*              if (ctrl->value == 0 && !(opt->gop_mode & 0x2)) { */
 935 /*                      opt->gop_mode |= 0x2; */
 936 /*                      hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */
 937 /*                                        opt->gop_mode); */
 938 /*              } */
 939 /*              if (ctrl->value == 128 && opt->gop_mode & 0x2) { */
 940 /*                      opt->gop_mode &= ~0x2; */
 941 /*                      hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */
 942 /*                                        opt->gop_mode); */
 943 /*              } */
 944 /*              break; */
 945         case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: {
 946                 uint peak_bitrate = dev->video_bitrate_peak->val / 100000;
 947                 uint bitrate = dev->video_bitrate->val / 100000;
 948
 949                 if (ctrl->is_new) {
 950                         if (ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)
 951                                 opt->bitrate_mode = HDPVR_CONSTANT;
 952                         else
 953                                 opt->bitrate_mode = HDPVR_VARIABLE_AVERAGE;
 954                         hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE,
 955                                           opt->bitrate_mode);
 956                         v4l2_ctrl_activate(dev->video_bitrate_peak,
 957                                 ctrl->val != V4L2_MPEG_VIDEO_BITRATE_MODE_CBR);
 958                 }
 959
 960                 if (dev->video_bitrate_peak->is_new ||
 961                     dev->video_bitrate->is_new) {
 962                         opt->bitrate = bitrate;
 963                         opt->peak_bitrate = peak_bitrate;
 964                         hdpvr_set_bitrate(dev);
 965                 }
 966                 return 0;
 967         }
 968         case V4L2_CID_MPEG_STREAM_TYPE:
 969                 return 0;
 970         default:
 971                 break;
 972         }
 973         return ret;
 974 }
 975
 976 static int vidioc_enum_fmt_vid_cap(struct file *file, void *private_data,
 977                                     struct v4l2_fmtdesc *f)
 978 {
 979         if (f->index != 0)
 980                 return -EINVAL;
 981
 982         f->flags = V4L2_FMT_FLAG_COMPRESSED;
 983         strncpy(f->description, "MPEG2-TS with AVC/AAC streams", 32);
 984         f->pixelformat = V4L2_PIX_FMT_MPEG;
 985
 986         return 0;
 987 }
 988
 989 static int vidioc_g_fmt_vid_cap(struct file *file, void *_fh,
 990                                 struct v4l2_format *f)
 991 {
 992         struct hdpvr_device *dev = video_drvdata(file);
 993         struct hdpvr_fh *fh = _fh;
 994         int ret;
 995
 996         /*
 997          * The original driver would always returns the current detected
 998          * resolution as the format (and EFAULT if it couldn't be detected).
 999          * With the introduction of VIDIOC_QUERY_DV_TIMINGS there is now a
1000          * better way of doing this, but to stay compatible with existing
1001          * applications we assume legacy mode every time an application opens
1002          * the device. Only if one of the new DV_TIMINGS ioctls is called
1003          * will the filehandle go into 'normal' mode where g_fmt returns the
1004          * last set format.
1005          */
1006         if (fh->legacy_mode) {
1007                 struct hdpvr_video_info vid_info;
1008
1009                 ret = get_video_info(dev, &vid_info);
1010                 if (ret < 0)
1011                         return ret;
1012                 if (!vid_info.valid)
1013                         return -EFAULT;
1014                 f->fmt.pix.width = vid_info.width;
1015                 f->fmt.pix.height = vid_info.height;
1016         } else {
1017                 f->fmt.pix.width = dev->width;
1018                 f->fmt.pix.height = dev->height;
1019         }
1020         f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
1021         f->fmt.pix.sizeimage    = dev->bulk_in_size;
1022         f->fmt.pix.bytesperline = 0;
1023         if (f->fmt.pix.width == 720) {
1024                 /* SDTV formats */
1025                 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1026                 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1027         } else {
1028                 /* HDTV formats */
1029                 f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
1030                 f->fmt.pix.field = V4L2_FIELD_NONE;
1031         }
1032         return 0;
1033 }
1034
1035 static int vidioc_encoder_cmd(struct file *filp, void *priv,
1036                                struct v4l2_encoder_cmd *a)
1037 {
1038         struct hdpvr_device *dev = video_drvdata(filp);
1039         int res = 0;
1040
1041         mutex_lock(&dev->io_mutex);
1042         a->flags = 0;
1043
1044         switch (a->cmd) {
1045         case V4L2_ENC_CMD_START:
1046                 if (dev->owner && filp->private_data != dev->owner) {
1047                         res = -EBUSY;
1048                         break;
1049                 }
1050                 if (dev->status == STATUS_STREAMING)
1051                         break;
1052                 res = hdpvr_start_streaming(dev);
1053                 if (!res)
1054                         dev->owner = filp->private_data;
1055                 else
1056                         dev->status = STATUS_IDLE;
1057                 break;
1058         case V4L2_ENC_CMD_STOP:
1059                 if (dev->owner && filp->private_data != dev->owner) {
1060                         res = -EBUSY;
1061                         break;
1062                 }
1063                 if (dev->status == STATUS_IDLE)
1064                         break;
1065                 res = hdpvr_stop_streaming(dev);
1066                 if (!res)
1067                         dev->owner = NULL;
1068                 break;
1069         default:
1070                 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
1071                          "Unsupported encoder cmd %d\n", a->cmd);
1072                 res = -EINVAL;
1073                 break;
1074         }
1075
1076         mutex_unlock(&dev->io_mutex);
1077         return res;
1078 }
1079
1080 static int vidioc_try_encoder_cmd(struct file *filp, void *priv,
1081                                         struct v4l2_encoder_cmd *a)
1082 {
1083         a->flags = 0;
1084         switch (a->cmd) {
1085         case V4L2_ENC_CMD_START:
1086         case V4L2_ENC_CMD_STOP:
1087                 return 0;
1088         default:
1089                 return -EINVAL;
1090         }
1091 }
1092
1093 static const struct v4l2_ioctl_ops hdpvr_ioctl_ops = {
1094         .vidioc_querycap        = vidioc_querycap,
1095         .vidioc_s_std           = vidioc_s_std,
1096         .vidioc_g_std           = vidioc_g_std,
1097         .vidioc_querystd        = vidioc_querystd,
1098         .vidioc_s_dv_timings    = vidioc_s_dv_timings,
1099         .vidioc_g_dv_timings    = vidioc_g_dv_timings,
1100         .vidioc_query_dv_timings= vidioc_query_dv_timings,
1101         .vidioc_enum_dv_timings = vidioc_enum_dv_timings,
1102         .vidioc_dv_timings_cap  = vidioc_dv_timings_cap,
1103         .vidioc_enum_input      = vidioc_enum_input,
1104         .vidioc_g_input         = vidioc_g_input,
1105         .vidioc_s_input         = vidioc_s_input,
1106         .vidioc_enumaudio       = vidioc_enumaudio,
1107         .vidioc_g_audio         = vidioc_g_audio,
1108         .vidioc_s_audio         = vidioc_s_audio,
1109         .vidioc_enum_fmt_vid_cap= vidioc_enum_fmt_vid_cap,
1110         .vidioc_g_fmt_vid_cap   = vidioc_g_fmt_vid_cap,
1111         .vidioc_s_fmt_vid_cap   = vidioc_g_fmt_vid_cap,
1112         .vidioc_try_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1113         .vidioc_encoder_cmd     = vidioc_encoder_cmd,
1114         .vidioc_try_encoder_cmd = vidioc_try_encoder_cmd,
1115         .vidioc_log_status      = v4l2_ctrl_log_status,
1116         .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1117         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1118 };
1119
1120 static void hdpvr_device_release(struct video_device *vdev)
1121 {
1122         struct hdpvr_device *dev = video_get_drvdata(vdev);
1123
1124         hdpvr_delete(dev);
1125         mutex_lock(&dev->io_mutex);
1126         flush_work(&dev->worker);
1127         mutex_unlock(&dev->io_mutex);
1128
1129         v4l2_device_unregister(&dev->v4l2_dev);
1130         v4l2_ctrl_handler_free(&dev->hdl);
1131
1132         /* deregister I2C adapter */
1133 #if IS_ENABLED(CONFIG_I2C)
1134         mutex_lock(&dev->i2c_mutex);
1135         i2c_del_adapter(&dev->i2c_adapter);
1136         mutex_unlock(&dev->i2c_mutex);
1137 #endif /* CONFIG_I2C */
1138
1139         kfree(dev->usbc_buf);
1140         kfree(dev);
1141 }
1142
1143 static const struct video_device hdpvr_video_template = {
1144         .fops                   = &hdpvr_fops,
1145         .release                = hdpvr_device_release,
1146         .ioctl_ops              = &hdpvr_ioctl_ops,
1147         .tvnorms                = V4L2_STD_ALL,
1148 };
1149
1150 static const struct v4l2_ctrl_ops hdpvr_ctrl_ops = {
1151         .try_ctrl = hdpvr_try_ctrl,
1152         .s_ctrl = hdpvr_s_ctrl,
1153 };
1154
1155 int hdpvr_register_videodev(struct hdpvr_device *dev, struct device *parent,
1156                             int devnum)
1157 {
1158         struct v4l2_ctrl_handler *hdl = &dev->hdl;
1159         bool ac3 = dev->flags & HDPVR_FLAG_AC3_CAP;
1160         int res;
1161
1162         dev->cur_std = V4L2_STD_525_60;
1163         dev->width = 720;
1164         dev->height = 480;
1165         dev->cur_dv_timings = hdpvr_dv_timings[HDPVR_DEF_DV_TIMINGS_IDX];
1166         v4l2_ctrl_handler_init(hdl, 11);
1167         if (dev->fw_ver > 0x15) {
1168                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1169                         V4L2_CID_BRIGHTNESS, 0x0, 0xff, 1, 0x80);
1170                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1171                         V4L2_CID_CONTRAST, 0x0, 0xff, 1, 0x40);
1172                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1173                         V4L2_CID_SATURATION, 0x0, 0xff, 1, 0x40);
1174                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1175                         V4L2_CID_HUE, 0x0, 0x1e, 1, 0xf);
1176                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1177                         V4L2_CID_SHARPNESS, 0x0, 0xff, 1, 0x80);
1178         } else {
1179                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1180                         V4L2_CID_BRIGHTNESS, 0x0, 0xff, 1, 0x86);
1181                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1182                         V4L2_CID_CONTRAST, 0x0, 0xff, 1, 0x80);
1183                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1184                         V4L2_CID_SATURATION, 0x0, 0xff, 1, 0x80);
1185                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1186                         V4L2_CID_HUE, 0x0, 0xff, 1, 0x80);
1187                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1188                         V4L2_CID_SHARPNESS, 0x0, 0xff, 1, 0x80);
1189         }
1190
1191         v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1192                 V4L2_CID_MPEG_STREAM_TYPE,
1193                 V4L2_MPEG_STREAM_TYPE_MPEG2_TS,
1194                 0x1, V4L2_MPEG_STREAM_TYPE_MPEG2_TS);
1195         v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1196                 V4L2_CID_MPEG_AUDIO_ENCODING,
1197                 ac3 ? V4L2_MPEG_AUDIO_ENCODING_AC3 : V4L2_MPEG_AUDIO_ENCODING_AAC,
1198                 0x7, ac3 ? dev->options.audio_codec : V4L2_MPEG_AUDIO_ENCODING_AAC);
1199         v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1200                 V4L2_CID_MPEG_VIDEO_ENCODING,
1201                 V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC, 0x3,
1202                 V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC);
1203
1204         dev->video_mode = v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1205                 V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
1206                 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 0,
1207                 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR);
1208
1209         dev->video_bitrate = v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1210                 V4L2_CID_MPEG_VIDEO_BITRATE,
1211                 1000000, 13500000, 100000, 6500000);
1212         dev->video_bitrate_peak = v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1213                 V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
1214                 1100000, 20200000, 100000, 9000000);
1215         dev->v4l2_dev.ctrl_handler = hdl;
1216         if (hdl->error) {
1217                 res = hdl->error;
1218                 v4l2_err(&dev->v4l2_dev, "Could not register controls\n");
1219                 goto error;
1220         }
1221         v4l2_ctrl_cluster(3, &dev->video_mode);
1222         res = v4l2_ctrl_handler_setup(hdl);
1223         if (res < 0) {
1224                 v4l2_err(&dev->v4l2_dev, "Could not setup controls\n");
1225                 goto error;
1226         }
1227
1228         /* setup and register video device */
1229         dev->video_dev = hdpvr_video_template;
1230         strcpy(dev->video_dev.name, "Hauppauge HD PVR");
1231         dev->video_dev.v4l2_dev = &dev->v4l2_dev;
1232         video_set_drvdata(&dev->video_dev, dev);
1233
1234         res = video_register_device(&dev->video_dev, VFL_TYPE_GRABBER, devnum);
1235         if (res < 0) {
1236                 v4l2_err(&dev->v4l2_dev, "video_device registration failed\n");
1237                 goto error;
1238         }
1239
1240         return 0;
1241 error:
1242         v4l2_ctrl_handler_free(hdl);
1243         return res;
1244 }