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 <linux/v4l2-dv-timings.h>
  24 #include <media/v4l2-dev.h>
  25 #include <media/v4l2-common.h>
  26 #include <media/v4l2-dv-timings.h>
  27 #include <media/v4l2-ioctl.h>
  28 #include <media/v4l2-event.h>
  29 #include "hdpvr.h"
  30
  31 #define BULK_URB_TIMEOUT   90 /* 0.09 seconds */
  32
  33 #define print_buffer_status() { \
  34                 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,       \
  35                          "%s:%d buffer stat: %d free, %d proc\n",       \
  36                          __func__, __LINE__,                            \
  37                          list_size(&dev->free_buff_list),               \
  38                          list_size(&dev->rec_buff_list)); }
  39
  40 static const struct v4l2_dv_timings hdpvr_dv_timings[] = {
  41         V4L2_DV_BT_CEA_720X480I59_94,
  42         V4L2_DV_BT_CEA_720X576I50,
  43         V4L2_DV_BT_CEA_720X480P59_94,
  44         V4L2_DV_BT_CEA_720X576P50,
  45         V4L2_DV_BT_CEA_1280X720P50,
  46         V4L2_DV_BT_CEA_1280X720P60,
  47         V4L2_DV_BT_CEA_1920X1080I50,
  48         V4L2_DV_BT_CEA_1920X1080I60,
  49 };
  50
  51 /* Use 480i59 as the default timings */
  52 #define HDPVR_DEF_DV_TIMINGS_IDX (0)
  53
  54 struct hdpvr_fh {
  55         struct v4l2_fh fh;
  56         bool legacy_mode;
  57 };
  58
  59 static uint list_size(struct list_head *list)
  60 {
  61         struct list_head *tmp;
  62         uint count = 0;
  63
  64         list_for_each(tmp, list) {
  65                 count++;
  66         }
  67
  68         return count;
  69 }
  70
  71 /*=========================================================================*/
  72 /* urb callback */
  73 static void hdpvr_read_bulk_callback(struct urb *urb)
  74 {
  75         struct hdpvr_buffer *buf = (struct hdpvr_buffer *)urb->context;
  76         struct hdpvr_device *dev = buf->dev;
  77
  78         /* marking buffer as received and wake waiting */
  79         buf->status = BUFSTAT_READY;
  80         wake_up_interruptible(&dev->wait_data);
  81 }
  82
  83 /*=========================================================================*/
  84 /* buffer bits */
  85
  86 /* function expects dev->io_mutex to be hold by caller */
  87 int hdpvr_cancel_queue(struct hdpvr_device *dev)
  88 {
  89         struct hdpvr_buffer *buf;
  90
  91         list_for_each_entry(buf, &dev->rec_buff_list, buff_list) {
  92                 usb_kill_urb(buf->urb);
  93                 buf->status = BUFSTAT_AVAILABLE;
  94         }
  95
  96         list_splice_init(&dev->rec_buff_list, dev->free_buff_list.prev);
  97
  98         return 0;
  99 }
 100
 101 static int hdpvr_free_queue(struct list_head *q)
 102 {
 103         struct list_head *tmp;
 104         struct list_head *p;
 105         struct hdpvr_buffer *buf;
 106         struct urb *urb;
 107
 108         for (p = q->next; p != q;) {
 109                 buf = list_entry(p, struct hdpvr_buffer, buff_list);
 110
 111                 urb = buf->urb;
 112                 usb_free_coherent(urb->dev, urb->transfer_buffer_length,
 113                                   urb->transfer_buffer, urb->transfer_dma);
 114                 usb_free_urb(urb);
 115                 tmp = p->next;
 116                 list_del(p);
 117                 kfree(buf);
 118                 p = tmp;
 119         }
 120
 121         return 0;
 122 }
 123
 124 /* function expects dev->io_mutex to be hold by caller */
 125 int hdpvr_free_buffers(struct hdpvr_device *dev)
 126 {
 127         hdpvr_cancel_queue(dev);
 128
 129         hdpvr_free_queue(&dev->free_buff_list);
 130         hdpvr_free_queue(&dev->rec_buff_list);
 131
 132         return 0;
 133 }
 134
 135 /* function expects dev->io_mutex to be hold by caller */
 136 int hdpvr_alloc_buffers(struct hdpvr_device *dev, uint count)
 137 {
 138         uint i;
 139         int retval = -ENOMEM;
 140         u8 *mem;
 141         struct hdpvr_buffer *buf;
 142         struct urb *urb;
 143
 144         v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
 145                  "allocating %u buffers\n", count);
 146
 147         for (i = 0; i < count; i++) {
 148
 149                 buf = kzalloc(sizeof(struct hdpvr_buffer), GFP_KERNEL);
 150                 if (!buf) {
 151                         v4l2_err(&dev->v4l2_dev, "cannot allocate buffer\n");
 152                         goto exit;
 153                 }
 154                 buf->dev = dev;
 155
 156                 urb = usb_alloc_urb(0, GFP_KERNEL);
 157                 if (!urb)
 158                         goto exit_urb;
 159                 buf->urb = urb;
 160
 161                 mem = usb_alloc_coherent(dev->udev, dev->bulk_in_size, GFP_KERNEL,
 162                                          &urb->transfer_dma);
 163                 if (!mem) {
 164                         v4l2_err(&dev->v4l2_dev,
 165                                  "cannot allocate usb transfer buffer\n");
 166                         goto exit_urb_buffer;
 167                 }
 168
 169                 usb_fill_bulk_urb(buf->urb, dev->udev,
 170                                   usb_rcvbulkpipe(dev->udev,
 171                                                   dev->bulk_in_endpointAddr),
 172                                   mem, dev->bulk_in_size,
 173                                   hdpvr_read_bulk_callback, buf);
 174
 175                 buf->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 176                 buf->status = BUFSTAT_AVAILABLE;
 177                 list_add_tail(&buf->buff_list, &dev->free_buff_list);
 178         }
 179         return 0;
 180 exit_urb_buffer:
 181         usb_free_urb(urb);
 182 exit_urb:
 183         kfree(buf);
 184 exit:
 185         hdpvr_free_buffers(dev);
 186         return retval;
 187 }
 188
 189 static int hdpvr_submit_buffers(struct hdpvr_device *dev)
 190 {
 191         struct hdpvr_buffer *buf;
 192         struct urb *urb;
 193         int ret = 0, err_count = 0;
 194
 195         mutex_lock(&dev->io_mutex);
 196
 197         while (dev->status == STATUS_STREAMING &&
 198                !list_empty(&dev->free_buff_list)) {
 199
 200                 buf = list_entry(dev->free_buff_list.next, struct hdpvr_buffer,
 201                                  buff_list);
 202                 if (buf->status != BUFSTAT_AVAILABLE) {
 203                         v4l2_err(&dev->v4l2_dev,
 204                                  "buffer not marked as available\n");
 205                         ret = -EFAULT;
 206                         goto err;
 207                 }
 208
 209                 urb = buf->urb;
 210                 urb->status = 0;
 211                 urb->actual_length = 0;
 212                 ret = usb_submit_urb(urb, GFP_KERNEL);
 213                 if (ret) {
 214                         v4l2_err(&dev->v4l2_dev,
 215                                  "usb_submit_urb in %s returned %d\n",
 216                                  __func__, ret);
 217                         if (++err_count > 2)
 218                                 break;
 219                         continue;
 220                 }
 221                 buf->status = BUFSTAT_INPROGRESS;
 222                 list_move_tail(&buf->buff_list, &dev->rec_buff_list);
 223         }
 224 err:
 225         print_buffer_status();
 226         mutex_unlock(&dev->io_mutex);
 227         return ret;
 228 }
 229
 230 static struct hdpvr_buffer *hdpvr_get_next_buffer(struct hdpvr_device *dev)
 231 {
 232         struct hdpvr_buffer *buf;
 233
 234         mutex_lock(&dev->io_mutex);
 235
 236         if (list_empty(&dev->rec_buff_list)) {
 237                 mutex_unlock(&dev->io_mutex);
 238                 return NULL;
 239         }
 240
 241         buf = list_entry(dev->rec_buff_list.next, struct hdpvr_buffer,
 242                          buff_list);
 243         mutex_unlock(&dev->io_mutex);
 244
 245         return buf;
 246 }
 247
 248 static void hdpvr_transmit_buffers(struct work_struct *work)
 249 {
 250         struct hdpvr_device *dev = container_of(work, struct hdpvr_device,
 251                                                 worker);
 252
 253         while (dev->status == STATUS_STREAMING) {
 254
 255                 if (hdpvr_submit_buffers(dev)) {
 256                         v4l2_err(&dev->v4l2_dev, "couldn't submit buffers\n");
 257                         goto error;
 258                 }
 259                 if (wait_event_interruptible(dev->wait_buffer,
 260                                 !list_empty(&dev->free_buff_list) ||
 261                                              dev->status != STATUS_STREAMING))
 262                         goto error;
 263         }
 264
 265         v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
 266                  "transmit worker exited\n");
 267         return;
 268 error:
 269         v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
 270                  "transmit buffers errored\n");
 271         dev->status = STATUS_ERROR;
 272 }
 273
 274 /* function expects dev->io_mutex to be hold by caller */
 275 static int hdpvr_start_streaming(struct hdpvr_device *dev)
 276 {
 277         int ret;
 278         struct hdpvr_video_info vidinf;
 279
 280         if (dev->status == STATUS_STREAMING)
 281                 return 0;
 282         if (dev->status != STATUS_IDLE)
 283                 return -EAGAIN;
 284
 285         ret = get_video_info(dev, &vidinf);
 286         if (ret < 0)
 287                 return ret;
 288
 289         if (!vidinf.valid) {
 290                 msleep(250);
 291                 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
 292                                 "no video signal at input %d\n", dev->options.video_input);
 293                 return -EAGAIN;
 294         }
 295
 296         v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 297                         "video signal: %dx%d@%dhz\n", vidinf.width,
 298                         vidinf.height, vidinf.fps);
 299
 300         /* start streaming 2 request */
 301         ret = usb_control_msg(dev->udev,
 302                         usb_sndctrlpipe(dev->udev, 0),
 303                         0xb8, 0x38, 0x1, 0, NULL, 0, 8000);
 304         v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 305                         "encoder start control request returned %d\n", ret);
 306         if (ret < 0)
 307                 return ret;
 308
 309         ret = hdpvr_config_call(dev, CTRL_START_STREAMING_VALUE, 0x00);
 310         if (ret)
 311                 return ret;
 312
 313         dev->status = STATUS_STREAMING;
 314
 315         INIT_WORK(&dev->worker, hdpvr_transmit_buffers);
 316         schedule_work(&dev->worker);
 317
 318         v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 319                         "streaming started\n");
 320
 321         return 0;
 322 }
 323
 324
 325 /* function expects dev->io_mutex to be hold by caller */
 326 static int hdpvr_stop_streaming(struct hdpvr_device *dev)
 327 {
 328         int actual_length;
 329         uint c = 0;
 330         u8 *buf;
 331
 332         if (dev->status == STATUS_IDLE)
 333                 return 0;
 334         else if (dev->status != STATUS_STREAMING)
 335                 return -EAGAIN;
 336
 337         buf = kmalloc(dev->bulk_in_size, GFP_KERNEL);
 338         if (!buf)
 339                 v4l2_err(&dev->v4l2_dev, "failed to allocate temporary buffer for emptying the internal device buffer. Next capture start will be slow\n");
 340
 341         dev->status = STATUS_SHUTTING_DOWN;
 342         hdpvr_config_call(dev, CTRL_STOP_STREAMING_VALUE, 0x00);
 343         mutex_unlock(&dev->io_mutex);
 344
 345         wake_up_interruptible(&dev->wait_buffer);
 346         msleep(50);
 347
 348         flush_work(&dev->worker);
 349
 350         mutex_lock(&dev->io_mutex);
 351         /* kill the still outstanding urbs */
 352         hdpvr_cancel_queue(dev);
 353
 354         /* emptying the device buffer beforeshutting it down */
 355         while (buf && ++c < 500 &&
 356                !usb_bulk_msg(dev->udev,
 357                              usb_rcvbulkpipe(dev->udev,
 358                                              dev->bulk_in_endpointAddr),
 359                              buf, dev->bulk_in_size, &actual_length,
 360                              BULK_URB_TIMEOUT)) {
 361                 v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 362                          "%2d: got %d bytes\n", c, actual_length);
 363         }
 364         kfree(buf);
 365         v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 366                  "used %d urbs to empty device buffers\n", c-1);
 367         msleep(10);
 368
 369         dev->status = STATUS_IDLE;
 370
 371         return 0;
 372 }
 373
 374
 375 /*=======================================================================*/
 376 /*
 377  * video 4 linux 2 file operations
 378  */
 379
 380 static int hdpvr_open(struct file *file)
 381 {
 382         struct hdpvr_fh *fh = kzalloc(sizeof(*fh), GFP_KERNEL);
 383
 384         if (fh == NULL)
 385                 return -ENOMEM;
 386         fh->legacy_mode = true;
 387         v4l2_fh_init(&fh->fh, video_devdata(file));
 388         v4l2_fh_add(&fh->fh);
 389         file->private_data = fh;
 390         return 0;
 391 }
 392
 393 static int hdpvr_release(struct file *file)
 394 {
 395         struct hdpvr_device *dev = video_drvdata(file);
 396
 397         mutex_lock(&dev->io_mutex);
 398         if (file->private_data == dev->owner) {
 399                 hdpvr_stop_streaming(dev);
 400                 dev->owner = NULL;
 401         }
 402         mutex_unlock(&dev->io_mutex);
 403
 404         return v4l2_fh_release(file);
 405 }
 406
 407 /*
 408  * hdpvr_v4l2_read()
 409  * will allocate buffers when called for the first time
 410  */
 411 static ssize_t hdpvr_read(struct file *file, char __user *buffer, size_t count,
 412                           loff_t *pos)
 413 {
 414         struct hdpvr_device *dev = video_drvdata(file);
 415         struct hdpvr_buffer *buf = NULL;
 416         struct urb *urb;
 417         unsigned int ret = 0;
 418         int rem, cnt;
 419
 420         if (*pos)
 421                 return -ESPIPE;
 422
 423         mutex_lock(&dev->io_mutex);
 424         if (dev->status == STATUS_IDLE) {
 425                 if (hdpvr_start_streaming(dev)) {
 426                         v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
 427                                  "start_streaming failed\n");
 428                         ret = -EIO;
 429                         msleep(200);
 430                         dev->status = STATUS_IDLE;
 431                         mutex_unlock(&dev->io_mutex);
 432                         goto err;
 433                 }
 434                 dev->owner = file->private_data;
 435                 print_buffer_status();
 436         }
 437         mutex_unlock(&dev->io_mutex);
 438
 439         /* wait for the first buffer */
 440         if (!(file->f_flags & O_NONBLOCK)) {
 441                 if (wait_event_interruptible(dev->wait_data,
 442                                              hdpvr_get_next_buffer(dev)))
 443                         return -ERESTARTSYS;
 444         }
 445
 446         buf = hdpvr_get_next_buffer(dev);
 447
 448         while (count > 0 && buf) {
 449
 450                 if (buf->status != BUFSTAT_READY &&
 451                     dev->status != STATUS_DISCONNECTED) {
 452                         int err;
 453                         /* return nonblocking */
 454                         if (file->f_flags & O_NONBLOCK) {
 455                                 if (!ret)
 456                                         ret = -EAGAIN;
 457                                 goto err;
 458                         }
 459
 460                         err = wait_event_interruptible_timeout(dev->wait_data,
 461                                 buf->status == BUFSTAT_READY,
 462                                 msecs_to_jiffies(1000));
 463                         if (err < 0) {
 464                                 ret = err;
 465                                 goto err;
 466                         }
 467                         if (!err) {
 468                                 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
 469                                         "timeout: restart streaming\n");
 470                                 hdpvr_stop_streaming(dev);
 471                                 msecs_to_jiffies(4000);
 472                                 err = hdpvr_start_streaming(dev);
 473                                 if (err) {
 474                                         ret = err;
 475                                         goto err;
 476                                 }
 477                         }
 478                 }
 479
 480                 if (buf->status != BUFSTAT_READY)
 481                         break;
 482
 483                 /* set remaining bytes to copy */
 484                 urb = buf->urb;
 485                 rem = urb->actual_length - buf->pos;
 486                 cnt = rem > count ? count : rem;
 487
 488                 if (copy_to_user(buffer, urb->transfer_buffer + buf->pos,
 489                                  cnt)) {
 490                         v4l2_err(&dev->v4l2_dev, "read: copy_to_user failed\n");
 491                         if (!ret)
 492                                 ret = -EFAULT;
 493                         goto err;
 494                 }
 495
 496                 buf->pos += cnt;
 497                 count -= cnt;
 498                 buffer += cnt;
 499                 ret += cnt;
 500
 501                 /* finished, take next buffer */
 502                 if (buf->pos == urb->actual_length) {
 503                         mutex_lock(&dev->io_mutex);
 504                         buf->pos = 0;
 505                         buf->status = BUFSTAT_AVAILABLE;
 506
 507                         list_move_tail(&buf->buff_list, &dev->free_buff_list);
 508
 509                         print_buffer_status();
 510
 511                         mutex_unlock(&dev->io_mutex);
 512
 513                         wake_up_interruptible(&dev->wait_buffer);
 514
 515                         buf = hdpvr_get_next_buffer(dev);
 516                 }
 517         }
 518 err:
 519         if (!ret && !buf)
 520                 ret = -EAGAIN;
 521         return ret;
 522 }
 523
 524 static __poll_t hdpvr_poll(struct file *filp, poll_table *wait)
 525 {
 526         __poll_t req_events = poll_requested_events(wait);
 527         struct hdpvr_buffer *buf = NULL;
 528         struct hdpvr_device *dev = video_drvdata(filp);
 529         __poll_t mask = v4l2_ctrl_poll(filp, wait);
 530
 531         if (!(req_events & (POLLIN | POLLRDNORM)))
 532                 return mask;
 533
 534         mutex_lock(&dev->io_mutex);
 535
 536         if (dev->status == STATUS_IDLE) {
 537                 if (hdpvr_start_streaming(dev)) {
 538                         v4l2_dbg(MSG_BUFFER, hdpvr_debug, &dev->v4l2_dev,
 539                                  "start_streaming failed\n");
 540                         dev->status = STATUS_IDLE;
 541                 } else {
 542                         dev->owner = filp->private_data;
 543                 }
 544
 545                 print_buffer_status();
 546         }
 547         mutex_unlock(&dev->io_mutex);
 548
 549         buf = hdpvr_get_next_buffer(dev);
 550         /* only wait if no data is available */
 551         if (!buf || buf->status != BUFSTAT_READY) {
 552                 poll_wait(filp, &dev->wait_data, wait);
 553                 buf = hdpvr_get_next_buffer(dev);
 554         }
 555         if (buf && buf->status == BUFSTAT_READY)
 556                 mask |= POLLIN | POLLRDNORM;
 557
 558         return mask;
 559 }
 560
 561
 562 static const struct v4l2_file_operations hdpvr_fops = {
 563         .owner          = THIS_MODULE,
 564         .open           = hdpvr_open,
 565         .release        = hdpvr_release,
 566         .read           = hdpvr_read,
 567         .poll           = hdpvr_poll,
 568         .unlocked_ioctl = video_ioctl2,
 569 };
 570
 571 /*=======================================================================*/
 572 /*
 573  * V4L2 ioctl handling
 574  */
 575
 576 static int vidioc_querycap(struct file *file, void  *priv,
 577                            struct v4l2_capability *cap)
 578 {
 579         struct hdpvr_device *dev = video_drvdata(file);
 580
 581         strcpy(cap->driver, "hdpvr");
 582         strcpy(cap->card, "Hauppauge HD PVR");
 583         usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
 584         cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_AUDIO |
 585                             V4L2_CAP_READWRITE;
 586         cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
 587         return 0;
 588 }
 589
 590 static int vidioc_s_std(struct file *file, void *_fh,
 591                         v4l2_std_id std)
 592 {
 593         struct hdpvr_device *dev = video_drvdata(file);
 594         struct hdpvr_fh *fh = _fh;
 595         u8 std_type = 1;
 596
 597         if (!fh->legacy_mode && dev->options.video_input == HDPVR_COMPONENT)
 598                 return -ENODATA;
 599         if (dev->status != STATUS_IDLE)
 600                 return -EBUSY;
 601         if (std & V4L2_STD_525_60)
 602                 std_type = 0;
 603         dev->cur_std = std;
 604         dev->width = 720;
 605         dev->height = std_type ? 576 : 480;
 606
 607         return hdpvr_config_call(dev, CTRL_VIDEO_STD_TYPE, std_type);
 608 }
 609
 610 static int vidioc_g_std(struct file *file, void *_fh,
 611                         v4l2_std_id *std)
 612 {
 613         struct hdpvr_device *dev = video_drvdata(file);
 614         struct hdpvr_fh *fh = _fh;
 615
 616         if (!fh->legacy_mode && dev->options.video_input == HDPVR_COMPONENT)
 617                 return -ENODATA;
 618         *std = dev->cur_std;
 619         return 0;
 620 }
 621
 622 static int vidioc_querystd(struct file *file, void *_fh, v4l2_std_id *a)
 623 {
 624         struct hdpvr_device *dev = video_drvdata(file);
 625         struct hdpvr_video_info vid_info;
 626         struct hdpvr_fh *fh = _fh;
 627         int ret;
 628
 629         *a = V4L2_STD_UNKNOWN;
 630         if (dev->options.video_input == HDPVR_COMPONENT)
 631                 return fh->legacy_mode ? 0 : -ENODATA;
 632         ret = get_video_info(dev, &vid_info);
 633         if (vid_info.valid && vid_info.width == 720 &&
 634             (vid_info.height == 480 || vid_info.height == 576)) {
 635                 *a = (vid_info.height == 480) ?
 636                         V4L2_STD_525_60 : V4L2_STD_625_50;
 637         }
 638         return ret;
 639 }
 640
 641 static int vidioc_s_dv_timings(struct file *file, void *_fh,
 642                                     struct v4l2_dv_timings *timings)
 643 {
 644         struct hdpvr_device *dev = video_drvdata(file);
 645         struct hdpvr_fh *fh = _fh;
 646         int i;
 647
 648         fh->legacy_mode = false;
 649         if (dev->options.video_input)
 650                 return -ENODATA;
 651         if (dev->status != STATUS_IDLE)
 652                 return -EBUSY;
 653         for (i = 0; i < ARRAY_SIZE(hdpvr_dv_timings); i++)
 654                 if (v4l2_match_dv_timings(timings, hdpvr_dv_timings + i, 0, false))
 655                         break;
 656         if (i == ARRAY_SIZE(hdpvr_dv_timings))
 657                 return -EINVAL;
 658         dev->cur_dv_timings = hdpvr_dv_timings[i];
 659         dev->width = hdpvr_dv_timings[i].bt.width;
 660         dev->height = hdpvr_dv_timings[i].bt.height;
 661         return 0;
 662 }
 663
 664 static int vidioc_g_dv_timings(struct file *file, void *_fh,
 665                                     struct v4l2_dv_timings *timings)
 666 {
 667         struct hdpvr_device *dev = video_drvdata(file);
 668         struct hdpvr_fh *fh = _fh;
 669
 670         fh->legacy_mode = false;
 671         if (dev->options.video_input)
 672                 return -ENODATA;
 673         *timings = dev->cur_dv_timings;
 674         return 0;
 675 }
 676
 677 static int vidioc_query_dv_timings(struct file *file, void *_fh,
 678                                     struct v4l2_dv_timings *timings)
 679 {
 680         struct hdpvr_device *dev = video_drvdata(file);
 681         struct hdpvr_fh *fh = _fh;
 682         struct hdpvr_video_info vid_info;
 683         bool interlaced;
 684         int ret = 0;
 685         int i;
 686
 687         fh->legacy_mode = false;
 688         if (dev->options.video_input)
 689                 return -ENODATA;
 690         ret = get_video_info(dev, &vid_info);
 691         if (ret)
 692                 return ret;
 693         if (!vid_info.valid)
 694                 return -ENOLCK;
 695         interlaced = vid_info.fps <= 30;
 696         for (i = 0; i < ARRAY_SIZE(hdpvr_dv_timings); i++) {
 697                 const struct v4l2_bt_timings *bt = &hdpvr_dv_timings[i].bt;
 698                 unsigned hsize;
 699                 unsigned vsize;
 700                 unsigned fps;
 701
 702                 hsize = V4L2_DV_BT_FRAME_WIDTH(bt);
 703                 vsize = V4L2_DV_BT_FRAME_HEIGHT(bt);
 704                 fps = (unsigned)bt->pixelclock / (hsize * vsize);
 705                 if (bt->width != vid_info.width ||
 706                     bt->height != vid_info.height ||
 707                     bt->interlaced != interlaced ||
 708                     (fps != vid_info.fps && fps + 1 != vid_info.fps))
 709                         continue;
 710                 *timings = hdpvr_dv_timings[i];
 711                 break;
 712         }
 713         if (i == ARRAY_SIZE(hdpvr_dv_timings))
 714                 ret = -ERANGE;
 715
 716         return ret;
 717 }
 718
 719 static int vidioc_enum_dv_timings(struct file *file, void *_fh,
 720                                     struct v4l2_enum_dv_timings *timings)
 721 {
 722         struct hdpvr_device *dev = video_drvdata(file);
 723         struct hdpvr_fh *fh = _fh;
 724
 725         fh->legacy_mode = false;
 726         memset(timings->reserved, 0, sizeof(timings->reserved));
 727         if (dev->options.video_input)
 728                 return -ENODATA;
 729         if (timings->index >= ARRAY_SIZE(hdpvr_dv_timings))
 730                 return -EINVAL;
 731         timings->timings = hdpvr_dv_timings[timings->index];
 732         return 0;
 733 }
 734
 735 static int vidioc_dv_timings_cap(struct file *file, void *_fh,
 736                                     struct v4l2_dv_timings_cap *cap)
 737 {
 738         struct hdpvr_device *dev = video_drvdata(file);
 739         struct hdpvr_fh *fh = _fh;
 740
 741         fh->legacy_mode = false;
 742         if (dev->options.video_input)
 743                 return -ENODATA;
 744         cap->type = V4L2_DV_BT_656_1120;
 745         cap->bt.min_width = 720;
 746         cap->bt.max_width = 1920;
 747         cap->bt.min_height = 480;
 748         cap->bt.max_height = 1080;
 749         cap->bt.min_pixelclock = 27000000;
 750         cap->bt.max_pixelclock = 74250000;
 751         cap->bt.standards = V4L2_DV_BT_STD_CEA861;
 752         cap->bt.capabilities = V4L2_DV_BT_CAP_INTERLACED | V4L2_DV_BT_CAP_PROGRESSIVE;
 753         return 0;
 754 }
 755
 756 static const char *iname[] = {
 757         [HDPVR_COMPONENT] = "Component",
 758         [HDPVR_SVIDEO]    = "S-Video",
 759         [HDPVR_COMPOSITE] = "Composite",
 760 };
 761
 762 static int vidioc_enum_input(struct file *file, void *_fh, struct v4l2_input *i)
 763 {
 764         unsigned int n;
 765
 766         n = i->index;
 767         if (n >= HDPVR_VIDEO_INPUTS)
 768                 return -EINVAL;
 769
 770         i->type = V4L2_INPUT_TYPE_CAMERA;
 771
 772         strncpy(i->name, iname[n], sizeof(i->name) - 1);
 773         i->name[sizeof(i->name) - 1] = '\0';
 774
 775         i->audioset = 1<<HDPVR_RCA_FRONT | 1<<HDPVR_RCA_BACK | 1<<HDPVR_SPDIF;
 776
 777         i->capabilities = n ? V4L2_IN_CAP_STD : V4L2_IN_CAP_DV_TIMINGS;
 778         i->std = n ? V4L2_STD_ALL : 0;
 779
 780         return 0;
 781 }
 782
 783 static int vidioc_s_input(struct file *file, void *_fh,
 784                           unsigned int index)
 785 {
 786         struct hdpvr_device *dev = video_drvdata(file);
 787         int retval;
 788
 789         if (index >= HDPVR_VIDEO_INPUTS)
 790                 return -EINVAL;
 791
 792         if (dev->status != STATUS_IDLE)
 793                 return -EBUSY;
 794
 795         retval = hdpvr_config_call(dev, CTRL_VIDEO_INPUT_VALUE, index+1);
 796         if (!retval) {
 797                 dev->options.video_input = index;
 798                 /*
 799                  * Unfortunately gstreamer calls ENUMSTD and bails out if it
 800                  * won't find any formats, even though component input is
 801                  * selected. This means that we have to leave tvnorms at
 802                  * V4L2_STD_ALL. We cannot use the 'legacy' trick since
 803                  * tvnorms is set at the device node level and not at the
 804                  * filehandle level.
 805                  *
 806                  * Comment this out for now, but if the legacy mode can be
 807                  * removed in the future, then this code should be enabled
 808                  * again.
 809                 dev->video_dev.tvnorms =
 810                         (index != HDPVR_COMPONENT) ? V4L2_STD_ALL : 0;
 811                  */
 812         }
 813
 814         return retval;
 815 }
 816
 817 static int vidioc_g_input(struct file *file, void *private_data,
 818                           unsigned int *index)
 819 {
 820         struct hdpvr_device *dev = video_drvdata(file);
 821
 822         *index = dev->options.video_input;
 823         return 0;
 824 }
 825
 826
 827 static const char *audio_iname[] = {
 828         [HDPVR_RCA_FRONT] = "RCA front",
 829         [HDPVR_RCA_BACK]  = "RCA back",
 830         [HDPVR_SPDIF]     = "SPDIF",
 831 };
 832
 833 static int vidioc_enumaudio(struct file *file, void *priv,
 834                                 struct v4l2_audio *audio)
 835 {
 836         unsigned int n;
 837
 838         n = audio->index;
 839         if (n >= HDPVR_AUDIO_INPUTS)
 840                 return -EINVAL;
 841
 842         audio->capability = V4L2_AUDCAP_STEREO;
 843
 844         strncpy(audio->name, audio_iname[n], sizeof(audio->name) - 1);
 845         audio->name[sizeof(audio->name) - 1] = '\0';
 846
 847         return 0;
 848 }
 849
 850 static int vidioc_s_audio(struct file *file, void *private_data,
 851                           const struct v4l2_audio *audio)
 852 {
 853         struct hdpvr_device *dev = video_drvdata(file);
 854         int retval;
 855
 856         if (audio->index >= HDPVR_AUDIO_INPUTS)
 857                 return -EINVAL;
 858
 859         if (dev->status != STATUS_IDLE)
 860                 return -EBUSY;
 861
 862         retval = hdpvr_set_audio(dev, audio->index+1, dev->options.audio_codec);
 863         if (!retval)
 864                 dev->options.audio_input = audio->index;
 865
 866         return retval;
 867 }
 868
 869 static int vidioc_g_audio(struct file *file, void *private_data,
 870                           struct v4l2_audio *audio)
 871 {
 872         struct hdpvr_device *dev = video_drvdata(file);
 873
 874         audio->index = dev->options.audio_input;
 875         audio->capability = V4L2_AUDCAP_STEREO;
 876         strncpy(audio->name, audio_iname[audio->index], sizeof(audio->name));
 877         audio->name[sizeof(audio->name) - 1] = '\0';
 878         return 0;
 879 }
 880
 881 static int hdpvr_try_ctrl(struct v4l2_ctrl *ctrl)
 882 {
 883         struct hdpvr_device *dev =
 884                 container_of(ctrl->handler, struct hdpvr_device, hdl);
 885
 886         switch (ctrl->id) {
 887         case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
 888                 if (ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR &&
 889                     dev->video_bitrate->val >= dev->video_bitrate_peak->val)
 890                         dev->video_bitrate_peak->val =
 891                                         dev->video_bitrate->val + 100000;
 892                 break;
 893         }
 894         return 0;
 895 }
 896
 897 static int hdpvr_s_ctrl(struct v4l2_ctrl *ctrl)
 898 {
 899         struct hdpvr_device *dev =
 900                 container_of(ctrl->handler, struct hdpvr_device, hdl);
 901         struct hdpvr_options *opt = &dev->options;
 902         int ret = -EINVAL;
 903
 904         switch (ctrl->id) {
 905         case V4L2_CID_BRIGHTNESS:
 906                 ret = hdpvr_config_call(dev, CTRL_BRIGHTNESS, ctrl->val);
 907                 if (ret)
 908                         break;
 909                 dev->options.brightness = ctrl->val;
 910                 return 0;
 911         case V4L2_CID_CONTRAST:
 912                 ret = hdpvr_config_call(dev, CTRL_CONTRAST, ctrl->val);
 913                 if (ret)
 914                         break;
 915                 dev->options.contrast = ctrl->val;
 916                 return 0;
 917         case V4L2_CID_SATURATION:
 918                 ret = hdpvr_config_call(dev, CTRL_SATURATION, ctrl->val);
 919                 if (ret)
 920                         break;
 921                 dev->options.saturation = ctrl->val;
 922                 return 0;
 923         case V4L2_CID_HUE:
 924                 ret = hdpvr_config_call(dev, CTRL_HUE, ctrl->val);
 925                 if (ret)
 926                         break;
 927                 dev->options.hue = ctrl->val;
 928                 return 0;
 929         case V4L2_CID_SHARPNESS:
 930                 ret = hdpvr_config_call(dev, CTRL_SHARPNESS, ctrl->val);
 931                 if (ret)
 932                         break;
 933                 dev->options.sharpness = ctrl->val;
 934                 return 0;
 935         case V4L2_CID_MPEG_AUDIO_ENCODING:
 936                 if (dev->flags & HDPVR_FLAG_AC3_CAP) {
 937                         opt->audio_codec = ctrl->val;
 938                         return hdpvr_set_audio(dev, opt->audio_input + 1,
 939                                               opt->audio_codec);
 940                 }
 941                 return 0;
 942         case V4L2_CID_MPEG_VIDEO_ENCODING:
 943                 return 0;
 944 /*      case V4L2_CID_MPEG_VIDEO_B_FRAMES: */
 945 /*              if (ctrl->value == 0 && !(opt->gop_mode & 0x2)) { */
 946 /*                      opt->gop_mode |= 0x2; */
 947 /*                      hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */
 948 /*                                        opt->gop_mode); */
 949 /*              } */
 950 /*              if (ctrl->value == 128 && opt->gop_mode & 0x2) { */
 951 /*                      opt->gop_mode &= ~0x2; */
 952 /*                      hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, */
 953 /*                                        opt->gop_mode); */
 954 /*              } */
 955 /*              break; */
 956         case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: {
 957                 uint peak_bitrate = dev->video_bitrate_peak->val / 100000;
 958                 uint bitrate = dev->video_bitrate->val / 100000;
 959
 960                 if (ctrl->is_new) {
 961                         if (ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)
 962                                 opt->bitrate_mode = HDPVR_CONSTANT;
 963                         else
 964                                 opt->bitrate_mode = HDPVR_VARIABLE_AVERAGE;
 965                         hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE,
 966                                           opt->bitrate_mode);
 967                         v4l2_ctrl_activate(dev->video_bitrate_peak,
 968                                 ctrl->val != V4L2_MPEG_VIDEO_BITRATE_MODE_CBR);
 969                 }
 970
 971                 if (dev->video_bitrate_peak->is_new ||
 972                     dev->video_bitrate->is_new) {
 973                         opt->bitrate = bitrate;
 974                         opt->peak_bitrate = peak_bitrate;
 975                         hdpvr_set_bitrate(dev);
 976                 }
 977                 return 0;
 978         }
 979         case V4L2_CID_MPEG_STREAM_TYPE:
 980                 return 0;
 981         default:
 982                 break;
 983         }
 984         return ret;
 985 }
 986
 987 static int vidioc_enum_fmt_vid_cap(struct file *file, void *private_data,
 988                                     struct v4l2_fmtdesc *f)
 989 {
 990         if (f->index != 0)
 991                 return -EINVAL;
 992
 993         f->flags = V4L2_FMT_FLAG_COMPRESSED;
 994         strncpy(f->description, "MPEG2-TS with AVC/AAC streams", 32);
 995         f->pixelformat = V4L2_PIX_FMT_MPEG;
 996
 997         return 0;
 998 }
 999
1000 static int vidioc_g_fmt_vid_cap(struct file *file, void *_fh,
1001                                 struct v4l2_format *f)
1002 {
1003         struct hdpvr_device *dev = video_drvdata(file);
1004         struct hdpvr_fh *fh = _fh;
1005         int ret;
1006
1007         /*
1008          * The original driver would always returns the current detected
1009          * resolution as the format (and EFAULT if it couldn't be detected).
1010          * With the introduction of VIDIOC_QUERY_DV_TIMINGS there is now a
1011          * better way of doing this, but to stay compatible with existing
1012          * applications we assume legacy mode every time an application opens
1013          * the device. Only if one of the new DV_TIMINGS ioctls is called
1014          * will the filehandle go into 'normal' mode where g_fmt returns the
1015          * last set format.
1016          */
1017         if (fh->legacy_mode) {
1018                 struct hdpvr_video_info vid_info;
1019
1020                 ret = get_video_info(dev, &vid_info);
1021                 if (ret < 0)
1022                         return ret;
1023                 if (!vid_info.valid)
1024                         return -EFAULT;
1025                 f->fmt.pix.width = vid_info.width;
1026                 f->fmt.pix.height = vid_info.height;
1027         } else {
1028                 f->fmt.pix.width = dev->width;
1029                 f->fmt.pix.height = dev->height;
1030         }
1031         f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
1032         f->fmt.pix.sizeimage    = dev->bulk_in_size;
1033         f->fmt.pix.bytesperline = 0;
1034         if (f->fmt.pix.width == 720) {
1035                 /* SDTV formats */
1036                 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1037                 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
1038         } else {
1039                 /* HDTV formats */
1040                 f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
1041                 f->fmt.pix.field = V4L2_FIELD_NONE;
1042         }
1043         return 0;
1044 }
1045
1046 static int vidioc_encoder_cmd(struct file *filp, void *priv,
1047                                struct v4l2_encoder_cmd *a)
1048 {
1049         struct hdpvr_device *dev = video_drvdata(filp);
1050         int res = 0;
1051
1052         mutex_lock(&dev->io_mutex);
1053         a->flags = 0;
1054
1055         switch (a->cmd) {
1056         case V4L2_ENC_CMD_START:
1057                 if (dev->owner && filp->private_data != dev->owner) {
1058                         res = -EBUSY;
1059                         break;
1060                 }
1061                 if (dev->status == STATUS_STREAMING)
1062                         break;
1063                 res = hdpvr_start_streaming(dev);
1064                 if (!res)
1065                         dev->owner = filp->private_data;
1066                 else
1067                         dev->status = STATUS_IDLE;
1068                 break;
1069         case V4L2_ENC_CMD_STOP:
1070                 if (dev->owner && filp->private_data != dev->owner) {
1071                         res = -EBUSY;
1072                         break;
1073                 }
1074                 if (dev->status == STATUS_IDLE)
1075                         break;
1076                 res = hdpvr_stop_streaming(dev);
1077                 if (!res)
1078                         dev->owner = NULL;
1079                 break;
1080         default:
1081                 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev,
1082                          "Unsupported encoder cmd %d\n", a->cmd);
1083                 res = -EINVAL;
1084                 break;
1085         }
1086
1087         mutex_unlock(&dev->io_mutex);
1088         return res;
1089 }
1090
1091 static int vidioc_try_encoder_cmd(struct file *filp, void *priv,
1092                                         struct v4l2_encoder_cmd *a)
1093 {
1094         a->flags = 0;
1095         switch (a->cmd) {
1096         case V4L2_ENC_CMD_START:
1097         case V4L2_ENC_CMD_STOP:
1098                 return 0;
1099         default:
1100                 return -EINVAL;
1101         }
1102 }
1103
1104 static const struct v4l2_ioctl_ops hdpvr_ioctl_ops = {
1105         .vidioc_querycap        = vidioc_querycap,
1106         .vidioc_s_std           = vidioc_s_std,
1107         .vidioc_g_std           = vidioc_g_std,
1108         .vidioc_querystd        = vidioc_querystd,
1109         .vidioc_s_dv_timings    = vidioc_s_dv_timings,
1110         .vidioc_g_dv_timings    = vidioc_g_dv_timings,
1111         .vidioc_query_dv_timings= vidioc_query_dv_timings,
1112         .vidioc_enum_dv_timings = vidioc_enum_dv_timings,
1113         .vidioc_dv_timings_cap  = vidioc_dv_timings_cap,
1114         .vidioc_enum_input      = vidioc_enum_input,
1115         .vidioc_g_input         = vidioc_g_input,
1116         .vidioc_s_input         = vidioc_s_input,
1117         .vidioc_enumaudio       = vidioc_enumaudio,
1118         .vidioc_g_audio         = vidioc_g_audio,
1119         .vidioc_s_audio         = vidioc_s_audio,
1120         .vidioc_enum_fmt_vid_cap= vidioc_enum_fmt_vid_cap,
1121         .vidioc_g_fmt_vid_cap   = vidioc_g_fmt_vid_cap,
1122         .vidioc_s_fmt_vid_cap   = vidioc_g_fmt_vid_cap,
1123         .vidioc_try_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1124         .vidioc_encoder_cmd     = vidioc_encoder_cmd,
1125         .vidioc_try_encoder_cmd = vidioc_try_encoder_cmd,
1126         .vidioc_log_status      = v4l2_ctrl_log_status,
1127         .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1128         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1129 };
1130
1131 static void hdpvr_device_release(struct video_device *vdev)
1132 {
1133         struct hdpvr_device *dev = video_get_drvdata(vdev);
1134
1135         hdpvr_delete(dev);
1136         mutex_lock(&dev->io_mutex);
1137         flush_work(&dev->worker);
1138         mutex_unlock(&dev->io_mutex);
1139
1140         v4l2_device_unregister(&dev->v4l2_dev);
1141         v4l2_ctrl_handler_free(&dev->hdl);
1142
1143         /* deregister I2C adapter */
1144 #if IS_ENABLED(CONFIG_I2C)
1145         mutex_lock(&dev->i2c_mutex);
1146         i2c_del_adapter(&dev->i2c_adapter);
1147         mutex_unlock(&dev->i2c_mutex);
1148 #endif /* CONFIG_I2C */
1149
1150         kfree(dev->usbc_buf);
1151         kfree(dev);
1152 }
1153
1154 static const struct video_device hdpvr_video_template = {
1155         .fops                   = &hdpvr_fops,
1156         .release                = hdpvr_device_release,
1157         .ioctl_ops              = &hdpvr_ioctl_ops,
1158         .tvnorms                = V4L2_STD_ALL,
1159 };
1160
1161 static const struct v4l2_ctrl_ops hdpvr_ctrl_ops = {
1162         .try_ctrl = hdpvr_try_ctrl,
1163         .s_ctrl = hdpvr_s_ctrl,
1164 };
1165
1166 int hdpvr_register_videodev(struct hdpvr_device *dev, struct device *parent,
1167                             int devnum)
1168 {
1169         struct v4l2_ctrl_handler *hdl = &dev->hdl;
1170         bool ac3 = dev->flags & HDPVR_FLAG_AC3_CAP;
1171         int res;
1172
1173         dev->cur_std = V4L2_STD_525_60;
1174         dev->width = 720;
1175         dev->height = 480;
1176         dev->cur_dv_timings = hdpvr_dv_timings[HDPVR_DEF_DV_TIMINGS_IDX];
1177         v4l2_ctrl_handler_init(hdl, 11);
1178         if (dev->fw_ver > 0x15) {
1179                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1180                         V4L2_CID_BRIGHTNESS, 0x0, 0xff, 1, 0x80);
1181                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1182                         V4L2_CID_CONTRAST, 0x0, 0xff, 1, 0x40);
1183                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1184                         V4L2_CID_SATURATION, 0x0, 0xff, 1, 0x40);
1185                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1186                         V4L2_CID_HUE, 0x0, 0x1e, 1, 0xf);
1187                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1188                         V4L2_CID_SHARPNESS, 0x0, 0xff, 1, 0x80);
1189         } else {
1190                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1191                         V4L2_CID_BRIGHTNESS, 0x0, 0xff, 1, 0x86);
1192                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1193                         V4L2_CID_CONTRAST, 0x0, 0xff, 1, 0x80);
1194                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1195                         V4L2_CID_SATURATION, 0x0, 0xff, 1, 0x80);
1196                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1197                         V4L2_CID_HUE, 0x0, 0xff, 1, 0x80);
1198                 v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1199                         V4L2_CID_SHARPNESS, 0x0, 0xff, 1, 0x80);
1200         }
1201
1202         v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1203                 V4L2_CID_MPEG_STREAM_TYPE,
1204                 V4L2_MPEG_STREAM_TYPE_MPEG2_TS,
1205                 0x1, V4L2_MPEG_STREAM_TYPE_MPEG2_TS);
1206         v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1207                 V4L2_CID_MPEG_AUDIO_ENCODING,
1208                 ac3 ? V4L2_MPEG_AUDIO_ENCODING_AC3 : V4L2_MPEG_AUDIO_ENCODING_AAC,
1209                 0x7, ac3 ? dev->options.audio_codec : V4L2_MPEG_AUDIO_ENCODING_AAC);
1210         v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1211                 V4L2_CID_MPEG_VIDEO_ENCODING,
1212                 V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC, 0x3,
1213                 V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC);
1214
1215         dev->video_mode = v4l2_ctrl_new_std_menu(hdl, &hdpvr_ctrl_ops,
1216                 V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
1217                 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 0,
1218                 V4L2_MPEG_VIDEO_BITRATE_MODE_CBR);
1219
1220         dev->video_bitrate = v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1221                 V4L2_CID_MPEG_VIDEO_BITRATE,
1222                 1000000, 13500000, 100000, 6500000);
1223         dev->video_bitrate_peak = v4l2_ctrl_new_std(hdl, &hdpvr_ctrl_ops,
1224                 V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
1225                 1100000, 20200000, 100000, 9000000);
1226         dev->v4l2_dev.ctrl_handler = hdl;
1227         if (hdl->error) {
1228                 res = hdl->error;
1229                 v4l2_err(&dev->v4l2_dev, "Could not register controls\n");
1230                 goto error;
1231         }
1232         v4l2_ctrl_cluster(3, &dev->video_mode);
1233         res = v4l2_ctrl_handler_setup(hdl);
1234         if (res < 0) {
1235                 v4l2_err(&dev->v4l2_dev, "Could not setup controls\n");
1236                 goto error;
1237         }
1238
1239         /* setup and register video device */
1240         dev->video_dev = hdpvr_video_template;
1241         strcpy(dev->video_dev.name, "Hauppauge HD PVR");
1242         dev->video_dev.v4l2_dev = &dev->v4l2_dev;
1243         video_set_drvdata(&dev->video_dev, dev);
1244
1245         res = video_register_device(&dev->video_dev, VFL_TYPE_GRABBER, devnum);
1246         if (res < 0) {
1247                 v4l2_err(&dev->v4l2_dev, "video_device registration failed\n");
1248                 goto error;
1249         }
1250
1251         return 0;
1252 error:
1253         v4l2_ctrl_handler_free(hdl);
1254         return res;
1255 }