SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/media/video/cx18/cx18-ioctl.c

   1 /*
   2  *  cx18 ioctl system call
   3  *
   4  *  Derived from ivtv-ioctl.c
   5  *
   6  *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  21  *  02111-1307  USA
  22  */
  23
  24 #include "cx18-driver.h"
  25 #include "cx18-version.h"
  26 #include "cx18-mailbox.h"
  27 #include "cx18-i2c.h"
  28 #include "cx18-queue.h"
  29 #include "cx18-fileops.h"
  30 #include "cx18-vbi.h"
  31 #include "cx18-audio.h"
  32 #include "cx18-video.h"
  33 #include "cx18-streams.h"
  34 #include "cx18-ioctl.h"
  35 #include "cx18-gpio.h"
  36 #include "cx18-controls.h"
  37 #include "cx18-cards.h"
  38 #include "cx18-av-core.h"
  39 #include <media/tveeprom.h>
  40 #include <media/v4l2-chip-ident.h>
  41 #include <linux/i2c-id.h>
  42
  43 u16 cx18_service2vbi(int type)
  44 {
  45         switch (type) {
  46         case V4L2_SLICED_TELETEXT_B:
  47                 return CX18_SLICED_TYPE_TELETEXT_B;
  48         case V4L2_SLICED_CAPTION_525:
  49                 return CX18_SLICED_TYPE_CAPTION_525;
  50         case V4L2_SLICED_WSS_625:
  51                 return CX18_SLICED_TYPE_WSS_625;
  52         case V4L2_SLICED_VPS:
  53                 return CX18_SLICED_TYPE_VPS;
  54         default:
  55                 return 0;
  56         }
  57 }
  58
  59 static int valid_service_line(int field, int line, int is_pal)
  60 {
  61         return (is_pal && line >= 6 && (line != 23 || field == 0)) ||
  62                (!is_pal && line >= 10 && line < 22);
  63 }
  64
  65 static u16 select_service_from_set(int field, int line, u16 set, int is_pal)
  66 {
  67         u16 valid_set = (is_pal ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525);
  68         int i;
  69
  70         set = set & valid_set;
  71         if (set == 0 || !valid_service_line(field, line, is_pal))
  72                 return 0;
  73         if (!is_pal) {
  74                 if (line == 21 && (set & V4L2_SLICED_CAPTION_525))
  75                         return V4L2_SLICED_CAPTION_525;
  76         } else {
  77                 if (line == 16 && field == 0 && (set & V4L2_SLICED_VPS))
  78                         return V4L2_SLICED_VPS;
  79                 if (line == 23 && field == 0 && (set & V4L2_SLICED_WSS_625))
  80                         return V4L2_SLICED_WSS_625;
  81                 if (line == 23)
  82                         return 0;
  83         }
  84         for (i = 0; i < 32; i++) {
  85                 if ((1 << i) & set)
  86                         return 1 << i;
  87         }
  88         return 0;
  89 }
  90
  91 void cx18_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
  92 {
  93         u16 set = fmt->service_set;
  94         int f, l;
  95
  96         fmt->service_set = 0;
  97         for (f = 0; f < 2; f++) {
  98                 for (l = 0; l < 24; l++)
  99                         fmt->service_lines[f][l] = select_service_from_set(f, l, set, is_pal);
 100         }
 101 }
 102
 103
 104 u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt)
 105 {
 106         int f, l;
 107         u16 set = 0;
 108
 109         for (f = 0; f < 2; f++) {
 110                 for (l = 0; l < 24; l++)
 111                         set |= fmt->service_lines[f][l];
 112         }
 113         return set;
 114 }
 115
 116 static int cx18_cxc(struct cx18 *cx, unsigned int cmd, void *arg)
 117 {
 118         struct v4l2_register *regs = arg;
 119         unsigned long flags;
 120
 121         if (!capable(CAP_SYS_ADMIN))
 122                 return -EPERM;
 123         if (regs->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE)
 124                 return -EINVAL;
 125
 126         spin_lock_irqsave(&cx18_cards_lock, flags);
 127         if (cmd == VIDIOC_DBG_G_REGISTER)
 128                 regs->val = read_enc(regs->reg);
 129         else
 130                 write_enc(regs->val, regs->reg);
 131         spin_unlock_irqrestore(&cx18_cards_lock, flags);
 132         return 0;
 133 }
 134
 135 static int cx18_g_fmt_vid_cap(struct file *file, void *fh,
 136                                 struct v4l2_format *fmt)
 137 {
 138         struct cx18_open_id *id = fh;
 139         struct cx18 *cx = id->cx;
 140
 141         CX18_DEBUG_IOCTL("VIDIOC_G_FMT: V4L2_BUF_TYPE_VIDEO_CAPTURE\n");
 142
 143         fmt->fmt.pix.width = cx->params.width;
 144         fmt->fmt.pix.height = cx->params.height;
 145         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
 146         fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
 147         if (id->type == CX18_ENC_STREAM_TYPE_YUV) {
 148                 fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_HM12;
 149                 /* YUV size is (Y=(h*w) + UV=(h*(w/2))) */
 150                 fmt->fmt.pix.sizeimage =
 151                         fmt->fmt.pix.height * fmt->fmt.pix.width +
 152                         fmt->fmt.pix.height * (fmt->fmt.pix.width / 2);
 153         } else {
 154                 fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
 155                 fmt->fmt.pix.sizeimage = 128 * 1024;
 156         }
 157         return 0;
 158 }
 159
 160 static int cx18_g_fmt_vbi_cap(struct file *file, void *fh,
 161                                 struct v4l2_format *fmt)
 162 {
 163         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 164
 165         CX18_DEBUG_IOCTL("VIDIOC_G_FMT: V4L2_BUF_TYPE_VBI_CAPTURE\n");
 166
 167         fmt->fmt.vbi.sampling_rate = 27000000;
 168         fmt->fmt.vbi.offset = 248;
 169         fmt->fmt.vbi.samples_per_line = cx->vbi.raw_decoder_line_size - 4;
 170         fmt->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
 171         fmt->fmt.vbi.start[0] = cx->vbi.start[0];
 172         fmt->fmt.vbi.start[1] = cx->vbi.start[1];
 173         fmt->fmt.vbi.count[0] = fmt->fmt.vbi.count[1] = cx->vbi.count;
 174         return 0;
 175 }
 176
 177 static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh,
 178                                         struct v4l2_format *fmt)
 179 {
 180         return -EINVAL;
 181 }
 182
 183 static int cx18_try_fmt_vid_cap(struct file *file, void *fh,
 184                                 struct v4l2_format *fmt)
 185 {
 186         struct cx18_open_id *id = fh;
 187         struct cx18 *cx = id->cx;
 188
 189         int w = fmt->fmt.pix.width;
 190         int h = fmt->fmt.pix.height;
 191
 192         CX18_DEBUG_IOCTL("VIDIOC_TRY_FMT: V4L2_BUF_TYPE_VIDEO_CAPTURE\n");
 193
 194         w = min(w, 720);
 195         w = max(w, 1);
 196         h = min(h, cx->is_50hz ? 576 : 480);
 197         h = max(h, 2);
 198         cx18_g_fmt_vid_cap(file, fh, fmt);
 199         fmt->fmt.pix.width = w;
 200         fmt->fmt.pix.height = h;
 201         return 0;
 202 }
 203
 204 static int cx18_try_fmt_vbi_cap(struct file *file, void *fh,
 205                                 struct v4l2_format *fmt)
 206 {
 207         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 208
 209         CX18_DEBUG_IOCTL("VIDIOC_TRY_FMT: V4L2_BUF_TYPE_VBI_CAPTURE\n");
 210
 211         return cx18_g_fmt_vbi_cap(file, fh, fmt);
 212 }
 213
 214 static int cx18_try_fmt_sliced_vbi_cap(struct file *file, void *fh,
 215                                         struct v4l2_format *fmt)
 216 {
 217         return -EINVAL;
 218 }
 219
 220 static int cx18_s_fmt_vid_cap(struct file *file, void *fh,
 221                                 struct v4l2_format *fmt)
 222 {
 223         struct cx18_open_id *id = fh;
 224         struct cx18 *cx = id->cx;
 225         int ret;
 226         int w = fmt->fmt.pix.width;
 227         int h = fmt->fmt.pix.height;
 228
 229         ret = v4l2_prio_check(&cx->prio, &id->prio);
 230         if (ret)
 231                 return ret;
 232
 233         CX18_DEBUG_IOCTL("VIDIOC_S_FMT: V4L2_BUF_TYPE_VIDEO_CAPTURE\n");
 234
 235         ret = cx18_try_fmt_vid_cap(file, fh, fmt);
 236         if (ret)
 237                 return ret;
 238
 239         if (cx->params.width == w && cx->params.height == h)
 240                 return 0;
 241
 242         if (atomic_read(&cx->ana_capturing) > 0)
 243                 return -EBUSY;
 244
 245         cx->params.width = w;
 246         cx->params.height = h;
 247         cx18_av_cmd(cx, VIDIOC_S_FMT, fmt);
 248         return cx18_g_fmt_vid_cap(file, fh, fmt);
 249 }
 250
 251 static int cx18_s_fmt_vbi_cap(struct file *file, void *fh,
 252                                 struct v4l2_format *fmt)
 253 {
 254         struct cx18_open_id *id = fh;
 255         struct cx18 *cx = id->cx;
 256         int ret;
 257
 258         ret = v4l2_prio_check(&cx->prio, &id->prio);
 259         if (ret)
 260                 return ret;
 261
 262         CX18_DEBUG_IOCTL("VIDIOC_S_FMT: V4L2_BUF_TYPE_VBI_CAPTURE\n");
 263
 264         if (id->type == CX18_ENC_STREAM_TYPE_VBI &&
 265                         cx->vbi.sliced_in->service_set &&
 266                         atomic_read(&cx->ana_capturing) > 0)
 267                 return -EBUSY;
 268
 269         cx->vbi.sliced_in->service_set = 0;
 270         cx18_av_cmd(cx, VIDIOC_S_FMT, &cx->vbi.in);
 271         return cx18_g_fmt_vbi_cap(file, fh, fmt);
 272 }
 273
 274 static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh,
 275                                         struct v4l2_format *fmt)
 276 {
 277         return -EINVAL;
 278 }
 279
 280 static int cx18_g_chip_ident(struct file *file, void *fh,
 281                                 struct v4l2_chip_ident *chip)
 282 {
 283         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 284
 285         CX18_DEBUG_IOCTL("VIDIOC_G_CHIP_IDENT\n");
 286
 287         chip->ident = V4L2_IDENT_NONE;
 288         chip->revision = 0;
 289         if (chip->match_type == V4L2_CHIP_MATCH_HOST) {
 290                 if (v4l2_chip_match_host(chip->match_type, chip->match_chip))
 291                         chip->ident = V4L2_IDENT_CX23418;
 292                 return 0;
 293         }
 294         if (chip->match_type == V4L2_CHIP_MATCH_I2C_DRIVER)
 295                 return cx18_i2c_id(cx, chip->match_chip, VIDIOC_G_CHIP_IDENT,
 296                                         chip);
 297         if (chip->match_type == V4L2_CHIP_MATCH_I2C_ADDR)
 298                 return cx18_call_i2c_client(cx, chip->match_chip,
 299                                                 VIDIOC_G_CHIP_IDENT, chip);
 300         return -EINVAL;
 301 }
 302
 303 static int cx18_g_register(struct file *file, void *fh,
 304                                 struct v4l2_register *reg)
 305 {
 306         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 307
 308         CX18_DEBUG_IOCTL("VIDIOC_DBG_G_REGISTER\n");
 309
 310         if (v4l2_chip_match_host(reg->match_type, reg->match_chip))
 311                 return cx18_cxc(cx, VIDIOC_DBG_G_REGISTER, reg);
 312         if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER)
 313                 return cx18_i2c_id(cx, reg->match_chip, VIDIOC_DBG_G_REGISTER,
 314                                         reg);
 315         return cx18_call_i2c_client(cx, reg->match_chip, VIDIOC_DBG_G_REGISTER,
 316                                         reg);
 317 }
 318
 319 static int cx18_s_register(struct file *file, void *fh,
 320                                 struct v4l2_register *reg)
 321 {
 322         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 323
 324         CX18_DEBUG_IOCTL("VIDIOC_DBG_S_REGISTER\n");
 325
 326         if (v4l2_chip_match_host(reg->match_type, reg->match_chip))
 327                 return cx18_cxc(cx, VIDIOC_DBG_S_REGISTER, reg);
 328         if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER)
 329                 return cx18_i2c_id(cx, reg->match_chip, VIDIOC_DBG_S_REGISTER,
 330                                         reg);
 331         return cx18_call_i2c_client(cx, reg->match_chip, VIDIOC_DBG_S_REGISTER,
 332                                         reg);
 333 }
 334
 335 static int cx18_g_priority(struct file *file, void *fh, enum v4l2_priority *p)
 336 {
 337         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 338
 339         CX18_DEBUG_IOCTL("VIDIOC_G_PRIORITY\n");
 340
 341         *p = v4l2_prio_max(&cx->prio);
 342         return 0;
 343 }
 344
 345 static int cx18_s_priority(struct file *file, void *fh, enum v4l2_priority prio)
 346 {
 347         struct cx18_open_id *id = fh;
 348         struct cx18 *cx = id->cx;
 349
 350         CX18_DEBUG_IOCTL("VIDIOC_S_PRIORITY\n");
 351
 352         return v4l2_prio_change(&cx->prio, &id->prio, prio);
 353 }
 354
 355 static int cx18_querycap(struct file *file, void *fh,
 356                                 struct v4l2_capability *vcap)
 357 {
 358         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 359
 360         CX18_DEBUG_IOCTL("VIDIOC_QUERYCAP\n");
 361
 362         strlcpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver));
 363         strlcpy(vcap->card, cx->card_name, sizeof(vcap->card));
 364         strlcpy(vcap->bus_info, pci_name(cx->dev), sizeof(vcap->bus_info));
 365         vcap->version = CX18_DRIVER_VERSION;        /* version */
 366         vcap->capabilities = cx->v4l2_cap;          /* capabilities */
 367         return 0;
 368 }
 369
 370 static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
 371 {
 372         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 373
 374         CX18_DEBUG_IOCTL("VIDIOC_ENUMAUDIO\n");
 375
 376         return cx18_get_audio_input(cx, vin->index, vin);
 377 }
 378
 379 static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
 380 {
 381         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 382
 383         CX18_DEBUG_IOCTL("VIDIOC_G_AUDIO\n");
 384
 385         vin->index = cx->audio_input;
 386         return cx18_get_audio_input(cx, vin->index, vin);
 387 }
 388
 389 static int cx18_s_audio(struct file *file, void *fh, struct v4l2_audio *vout)
 390 {
 391         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 392
 393         CX18_DEBUG_IOCTL("VIDIOC_S_AUDIO\n");
 394
 395         if (vout->index >= cx->nof_audio_inputs)
 396                 return -EINVAL;
 397         cx->audio_input = vout->index;
 398         cx18_audio_set_io(cx);
 399         return 0;
 400 }
 401
 402 static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin)
 403 {
 404         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 405
 406         CX18_DEBUG_IOCTL("VIDIOC_ENUMINPUT\n");
 407
 408         /* set it to defaults from our table */
 409         return cx18_get_input(cx, vin->index, vin);
 410 }
 411
 412 static int cx18_cropcap(struct file *file, void *fh,
 413                         struct v4l2_cropcap *cropcap)
 414 {
 415         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 416
 417         CX18_DEBUG_IOCTL("VIDIOC_CROPCAP\n");
 418
 419         if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 420                 return -EINVAL;
 421         cropcap->bounds.top = cropcap->bounds.left = 0;
 422         cropcap->bounds.width = 720;
 423         cropcap->bounds.height = cx->is_50hz ? 576 : 480;
 424         cropcap->pixelaspect.numerator = cx->is_50hz ? 59 : 10;
 425         cropcap->pixelaspect.denominator = cx->is_50hz ? 54 : 11;
 426         cropcap->defrect = cropcap->bounds;
 427         return 0;
 428 }
 429
 430 static int cx18_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
 431 {
 432         struct cx18_open_id *id = fh;
 433         struct cx18 *cx = id->cx;
 434         int ret;
 435
 436         ret = v4l2_prio_check(&cx->prio, &id->prio);
 437         if (ret)
 438                 return ret;
 439
 440         CX18_DEBUG_IOCTL("VIDIOC_S_CROP\n");
 441
 442         if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 443                 return -EINVAL;
 444         return cx18_av_cmd(cx, VIDIOC_S_CROP, crop);
 445 }
 446
 447 static int cx18_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
 448 {
 449         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 450
 451         CX18_DEBUG_IOCTL("VIDIOC_G_CROP\n");
 452
 453         if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 454                 return -EINVAL;
 455         return cx18_av_cmd(cx, VIDIOC_G_CROP, crop);
 456 }
 457
 458 static int cx18_enum_fmt_vid_cap(struct file *file, void *fh,
 459                                         struct v4l2_fmtdesc *fmt)
 460 {
 461         static struct v4l2_fmtdesc formats[] = {
 462                 { 0, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0,
 463                   "HM12 (YUV 4:1:1)", V4L2_PIX_FMT_HM12, { 0, 0, 0, 0 }
 464                 },
 465                 { 1, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FMT_FLAG_COMPRESSED,
 466                   "MPEG", V4L2_PIX_FMT_MPEG, { 0, 0, 0, 0 }
 467                 }
 468         };
 469
 470         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 471
 472         CX18_DEBUG_IOCTL("VIDIOC_ENUM_FMT: V4L2_BUF_TYPE_VIDEO_CAPTURE\n");
 473
 474         if (fmt->index > 1)
 475                 return -EINVAL;
 476         *fmt = formats[fmt->index];
 477         return 0;
 478 }
 479
 480 static int cx18_g_input(struct file *file, void *fh, unsigned int *i)
 481 {
 482         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 483
 484         CX18_DEBUG_IOCTL("VIDIOC_G_INPUT\n");
 485
 486         *i = cx->active_input;
 487         return 0;
 488 }
 489
 490 int cx18_s_input(struct file *file, void *fh, unsigned int inp)
 491 {
 492         struct cx18_open_id *id = fh;
 493         struct cx18 *cx = id->cx;
 494         int ret;
 495
 496         ret = v4l2_prio_check(&cx->prio, &id->prio);
 497         if (ret)
 498                 return ret;
 499
 500         CX18_DEBUG_IOCTL("VIDIOC_S_INPUT\n");
 501
 502         if (inp < 0 || inp >= cx->nof_inputs)
 503                 return -EINVAL;
 504
 505         if (inp == cx->active_input) {
 506                 CX18_DEBUG_INFO("Input unchanged\n");
 507                 return 0;
 508         }
 509
 510         CX18_DEBUG_INFO("Changing input from %d to %d\n",
 511                         cx->active_input, inp);
 512
 513         cx->active_input = inp;
 514         /* Set the audio input to whatever is appropriate for the input type. */
 515         cx->audio_input = cx->card->video_inputs[inp].audio_index;
 516
 517         /* prevent others from messing with the streams until
 518            we're finished changing inputs. */
 519         cx18_mute(cx);
 520         cx18_video_set_io(cx);
 521         cx18_audio_set_io(cx);
 522         cx18_unmute(cx);
 523         return 0;
 524 }
 525
 526 static int cx18_g_frequency(struct file *file, void *fh,
 527                                 struct v4l2_frequency *vf)
 528 {
 529         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 530
 531         CX18_DEBUG_IOCTL("VIDIOC_G_FREQUENCY\n");
 532
 533         if (vf->tuner != 0)
 534                 return -EINVAL;
 535
 536         cx18_call_i2c_clients(cx, VIDIOC_G_FREQUENCY, vf);
 537         return 0;
 538 }
 539
 540 int cx18_s_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
 541 {
 542         struct cx18_open_id *id = fh;
 543         struct cx18 *cx = id->cx;
 544         int ret;
 545
 546         ret = v4l2_prio_check(&cx->prio, &id->prio);
 547         if (ret)
 548                 return ret;
 549
 550         CX18_DEBUG_IOCTL("VIDIOC_S_FREQUENCY\n");
 551
 552         if (vf->tuner != 0)
 553                 return -EINVAL;
 554
 555         cx18_mute(cx);
 556         CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency);
 557         cx18_call_i2c_clients(cx, VIDIOC_S_FREQUENCY, vf);
 558         cx18_unmute(cx);
 559         return 0;
 560 }
 561
 562 static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std)
 563 {
 564         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 565
 566         CX18_DEBUG_IOCTL("VIDIOC_G_STD\n");
 567
 568         *std = cx->std;
 569         return 0;
 570 }
 571
 572 int cx18_s_std(struct file *file, void *fh, v4l2_std_id *std)
 573 {
 574         struct cx18_open_id *id = fh;
 575         struct cx18 *cx = id->cx;
 576         int ret;
 577
 578         ret = v4l2_prio_check(&cx->prio, &id->prio);
 579         if (ret)
 580                 return ret;
 581
 582         CX18_DEBUG_IOCTL("VIDIOC_S_STD\n");
 583
 584         if ((*std & V4L2_STD_ALL) == 0)
 585                 return -EINVAL;
 586
 587         if (*std == cx->std)
 588                 return 0;
 589
 590         if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ||
 591             atomic_read(&cx->ana_capturing) > 0) {
 592                 /* Switching standard would turn off the radio or mess
 593                    with already running streams, prevent that by
 594                    returning EBUSY. */
 595                 return -EBUSY;
 596         }
 597
 598         cx->std = *std;
 599         cx->is_60hz = (*std & V4L2_STD_525_60) ? 1 : 0;
 600         cx->params.is_50hz = cx->is_50hz = !cx->is_60hz;
 601         cx->params.width = 720;
 602         cx->params.height = cx->is_50hz ? 576 : 480;
 603         cx->vbi.count = cx->is_50hz ? 18 : 12;
 604         cx->vbi.start[0] = cx->is_50hz ? 6 : 10;
 605         cx->vbi.start[1] = cx->is_50hz ? 318 : 273;
 606         cx->vbi.sliced_decoder_line_size = cx->is_60hz ? 272 : 284;
 607         CX18_DEBUG_INFO("Switching standard to %llx.\n",
 608                         (unsigned long long) cx->std);
 609
 610         /* Tuner */
 611         cx18_call_i2c_clients(cx, VIDIOC_S_STD, &cx->std);
 612         return 0;
 613 }
 614
 615 static int cx18_s_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
 616 {
 617         struct cx18_open_id *id = fh;
 618         struct cx18 *cx = id->cx;
 619         int ret;
 620
 621         ret = v4l2_prio_check(&cx->prio, &id->prio);
 622         if (ret)
 623                 return ret;
 624
 625         CX18_DEBUG_IOCTL("VIDIOC_S_TUNER\n");
 626
 627         if (vt->index != 0)
 628                 return -EINVAL;
 629
 630         /* Setting tuner can only set audio mode */
 631         cx18_call_i2c_clients(cx, VIDIOC_S_TUNER, vt);
 632
 633         return 0;
 634 }
 635
 636 static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
 637 {
 638         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 639
 640         CX18_DEBUG_IOCTL("VIDIOC_G_TUNER\n");
 641
 642         if (vt->index != 0)
 643                 return -EINVAL;
 644
 645         cx18_call_i2c_clients(cx, VIDIOC_G_TUNER, vt);
 646
 647         if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags)) {
 648                 strlcpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name));
 649                 vt->type = V4L2_TUNER_RADIO;
 650         } else {
 651                 strlcpy(vt->name, "cx18 TV Tuner", sizeof(vt->name));
 652                 vt->type = V4L2_TUNER_ANALOG_TV;
 653         }
 654
 655         return 0;
 656 }
 657
 658 static int cx18_g_sliced_vbi_cap(struct file *file, void *fh,
 659                                         struct v4l2_sliced_vbi_cap *cap)
 660 {
 661         return -EINVAL;
 662 }
 663
 664 static int cx18_g_enc_index(struct file *file, void *fh,
 665                                 struct v4l2_enc_idx *idx)
 666 {
 667         return -EINVAL;
 668 }
 669
 670 static int cx18_encoder_cmd(struct file *file, void *fh,
 671                                 struct v4l2_encoder_cmd *enc)
 672 {
 673         struct cx18_open_id *id = fh;
 674         struct cx18 *cx = id->cx;
 675
 676         CX18_DEBUG_IOCTL("VIDIOC_ENCODER_CMD:\n");
 677
 678         switch (enc->cmd) {
 679         case V4L2_ENC_CMD_START:
 680                 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
 681                 enc->flags = 0;
 682                 return cx18_start_capture(id);
 683
 684         case V4L2_ENC_CMD_STOP:
 685                 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
 686                 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
 687                 cx18_stop_capture(id,
 688                                   enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END);
 689                 break;
 690
 691         case V4L2_ENC_CMD_PAUSE:
 692                 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
 693                 enc->flags = 0;
 694                 if (!atomic_read(&cx->ana_capturing))
 695                         return -EPERM;
 696                 if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
 697                         return 0;
 698                 cx18_mute(cx);
 699                 cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, cx18_find_handle(cx));
 700                 break;
 701
 702         case V4L2_ENC_CMD_RESUME:
 703                 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
 704                 enc->flags = 0;
 705                 if (!atomic_read(&cx->ana_capturing))
 706                         return -EPERM;
 707                 if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
 708                         return 0;
 709                 cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, cx18_find_handle(cx));
 710                 cx18_unmute(cx);
 711                 break;
 712
 713         default:
 714                 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
 715                 return -EINVAL;
 716         }
 717         return 0;
 718 }
 719
 720 static int cx18_try_encoder_cmd(struct file *file, void *fh,
 721                                 struct v4l2_encoder_cmd *enc)
 722 {
 723         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 724
 725         CX18_DEBUG_IOCTL("VIDIOC_TRY_ENCDOER_CMD:\n");
 726
 727         switch (enc->cmd) {
 728         case V4L2_ENC_CMD_START:
 729                 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
 730                 enc->flags = 0;
 731                 break;
 732
 733         case V4L2_ENC_CMD_STOP:
 734                 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
 735                 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
 736                 break;
 737
 738         case V4L2_ENC_CMD_PAUSE:
 739                 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
 740                 enc->flags = 0;
 741                 break;
 742
 743         case V4L2_ENC_CMD_RESUME:
 744                 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
 745                 enc->flags = 0;
 746                 break;
 747
 748         default:
 749                 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
 750                 return -EINVAL;
 751         }
 752         return 0;
 753 }
 754
 755 static int cx18_log_status(struct file *file, void *fh)
 756 {
 757         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 758         struct v4l2_input vidin;
 759         struct v4l2_audio audin;
 760         int i;
 761
 762         CX18_DEBUG_IOCTL("VIDIOC_LOG_STATUS\n");
 763         CX18_INFO("=================  START STATUS CARD #%d  =================\n", cx->num);
 764         if (cx->hw_flags & CX18_HW_TVEEPROM) {
 765                 struct tveeprom tv;
 766
 767                 cx18_read_eeprom(cx, &tv);
 768         }
 769         cx18_call_i2c_clients(cx, VIDIOC_LOG_STATUS, NULL);
 770         cx18_get_input(cx, cx->active_input, &vidin);
 771         cx18_get_audio_input(cx, cx->audio_input, &audin);
 772         CX18_INFO("Video Input: %s\n", vidin.name);
 773         CX18_INFO("Audio Input: %s\n", audin.name);
 774         CX18_INFO("Tuner: %s\n",
 775                 test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ?  "Radio" : "TV");
 776         cx2341x_log_status(&cx->params, cx->name);
 777         CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags);
 778         for (i = 0; i < CX18_MAX_STREAMS; i++) {
 779                 struct cx18_stream *s = &cx->streams[i];
 780
 781                 if (s->v4l2dev == NULL || s->buffers == 0)
 782                         continue;
 783                 CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n",
 784                           s->name, s->s_flags,
 785                           (s->buffers - s->q_free.buffers) * 100 / s->buffers,
 786                           (s->buffers * s->buf_size) / 1024, s->buffers);
 787         }
 788         CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n",
 789                         (long long)cx->mpg_data_received,
 790                         (long long)cx->vbi_data_inserted);
 791         CX18_INFO("==================  END STATUS CARD #%d  ==================\n", cx->num);
 792         return 0;
 793 }
 794
 795 static int cx18_default(struct file *file, void *fh, int cmd, void *arg)
 796 {
 797         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 798
 799         switch (cmd) {
 800         case VIDIOC_INT_S_AUDIO_ROUTING: {
 801                 struct v4l2_routing *route = arg;
 802                 CX18_DEBUG_IOCTL("VIDIOC_INT_S_AUDIO_ROUTING (%d, %d)\n",
 803                                         route->input, route->output);
 804                 cx18_audio_set_route(cx, route);
 805                 break;
 806         }
 807         case VIDIOC_INT_RESET: {
 808                 u32 val = *(u32 *)arg;
 809                 CX18_DEBUG_IOCTL("VIDIOC_INT_RESET (%#10x)\n", val);
 810                 /* No op right now */
 811                 /* cx18_av_cmd(cx, cmd, arg) */
 812                 /* cx18_call_i2c_clients(cx, cmd, arg) */
 813                 break;
 814         }
 815         default:
 816                 if (cx18_debug & CX18_DBGFLG_IOCTL) {
 817                         printk(KERN_INFO "cx18%d ioctl: unsupported cmd: ",
 818                                  cx->num);
 819                         v4l_printk_ioctl(cmd);
 820                         printk("\n");
 821                 }
 822                 return -EINVAL;
 823         }
 824         return 0;
 825 }
 826
 827 int cx18_v4l2_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
 828                     unsigned long arg)
 829 {
 830         struct cx18_open_id *id = (struct cx18_open_id *)filp->private_data;
 831         struct cx18 *cx = id->cx;
 832         int res;
 833
 834         mutex_lock(&cx->serialize_lock);
 835         res = video_ioctl2(inode, filp, cmd, arg);
 836         mutex_unlock(&cx->serialize_lock);
 837         return res;
 838 }
 839
 840 void cx18_set_funcs(struct video_device *vdev)
 841 {
 842         vdev->vidioc_querycap                = cx18_querycap;
 843         vdev->vidioc_g_priority              = cx18_g_priority;
 844         vdev->vidioc_s_priority              = cx18_s_priority;
 845         vdev->vidioc_s_audio                 = cx18_s_audio;
 846         vdev->vidioc_g_audio                 = cx18_g_audio;
 847         vdev->vidioc_enumaudio               = cx18_enumaudio;
 848         vdev->vidioc_enum_input              = cx18_enum_input;
 849         vdev->vidioc_cropcap                 = cx18_cropcap;
 850         vdev->vidioc_s_crop                  = cx18_s_crop;
 851         vdev->vidioc_g_crop                  = cx18_g_crop;
 852         vdev->vidioc_g_input                 = cx18_g_input;
 853         vdev->vidioc_s_input                 = cx18_s_input;
 854         vdev->vidioc_g_frequency             = cx18_g_frequency;
 855         vdev->vidioc_s_frequency             = cx18_s_frequency;
 856         vdev->vidioc_s_tuner                 = cx18_s_tuner;
 857         vdev->vidioc_g_tuner                 = cx18_g_tuner;
 858         vdev->vidioc_g_enc_index             = cx18_g_enc_index;
 859         vdev->vidioc_g_std                   = cx18_g_std;
 860         vdev->vidioc_s_std                   = cx18_s_std;
 861         vdev->vidioc_log_status              = cx18_log_status;
 862         vdev->vidioc_enum_fmt_vid_cap        = cx18_enum_fmt_vid_cap;
 863         vdev->vidioc_encoder_cmd             = cx18_encoder_cmd;
 864         vdev->vidioc_try_encoder_cmd         = cx18_try_encoder_cmd;
 865         vdev->vidioc_g_fmt_vid_cap           = cx18_g_fmt_vid_cap;
 866         vdev->vidioc_g_fmt_vbi_cap           = cx18_g_fmt_vbi_cap;
 867         vdev->vidioc_g_fmt_sliced_vbi_cap    = cx18_g_fmt_sliced_vbi_cap;
 868         vdev->vidioc_s_fmt_vid_cap           = cx18_s_fmt_vid_cap;
 869         vdev->vidioc_s_fmt_vbi_cap           = cx18_s_fmt_vbi_cap;
 870         vdev->vidioc_s_fmt_sliced_vbi_cap    = cx18_s_fmt_sliced_vbi_cap;
 871         vdev->vidioc_try_fmt_vid_cap         = cx18_try_fmt_vid_cap;
 872         vdev->vidioc_try_fmt_vbi_cap         = cx18_try_fmt_vbi_cap;
 873         vdev->vidioc_try_fmt_sliced_vbi_cap  = cx18_try_fmt_sliced_vbi_cap;
 874         vdev->vidioc_g_sliced_vbi_cap        = cx18_g_sliced_vbi_cap;
 875         vdev->vidioc_g_chip_ident            = cx18_g_chip_ident;
 876         vdev->vidioc_g_register              = cx18_g_register;
 877         vdev->vidioc_s_register              = cx18_s_register;
 878         vdev->vidioc_default                 = cx18_default;
 879         vdev->vidioc_queryctrl               = cx18_queryctrl;
 880         vdev->vidioc_querymenu               = cx18_querymenu;
 881         vdev->vidioc_g_ctrl                  = cx18_g_ctrl;
 882         vdev->vidioc_s_ctrl                  = cx18_s_ctrl;
 883         vdev->vidioc_g_ext_ctrls             = cx18_g_ext_ctrls;
 884         vdev->vidioc_s_ext_ctrls             = cx18_s_ext_ctrls;
 885         vdev->vidioc_try_ext_ctrls           = cx18_try_ext_ctrls;
 886 }