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         if (w != 720 || h != (cx->is_50hz ? 576 : 480))
 248                 cx->params.video_temporal_filter = 0;
 249         else
 250                 cx->params.video_temporal_filter = 8;
 251         cx18_av_cmd(cx, VIDIOC_S_FMT, fmt);
 252         return cx18_g_fmt_vid_cap(file, fh, fmt);
 253 }
 254
 255 static int cx18_s_fmt_vbi_cap(struct file *file, void *fh,
 256                                 struct v4l2_format *fmt)
 257 {
 258         struct cx18_open_id *id = fh;
 259         struct cx18 *cx = id->cx;
 260         int ret;
 261
 262         ret = v4l2_prio_check(&cx->prio, &id->prio);
 263         if (ret)
 264                 return ret;
 265
 266         CX18_DEBUG_IOCTL("VIDIOC_S_FMT: V4L2_BUF_TYPE_VBI_CAPTURE\n");
 267
 268         if (id->type == CX18_ENC_STREAM_TYPE_VBI &&
 269                         cx->vbi.sliced_in->service_set &&
 270                         atomic_read(&cx->ana_capturing) > 0)
 271                 return -EBUSY;
 272
 273         cx->vbi.sliced_in->service_set = 0;
 274         cx18_av_cmd(cx, VIDIOC_S_FMT, &cx->vbi.in);
 275         return cx18_g_fmt_vbi_cap(file, fh, fmt);
 276 }
 277
 278 static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh,
 279                                         struct v4l2_format *fmt)
 280 {
 281         return -EINVAL;
 282 }
 283
 284 static int cx18_g_chip_ident(struct file *file, void *fh,
 285                                 struct v4l2_chip_ident *chip)
 286 {
 287         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 288
 289         CX18_DEBUG_IOCTL("VIDIOC_G_CHIP_IDENT\n");
 290
 291         chip->ident = V4L2_IDENT_NONE;
 292         chip->revision = 0;
 293         if (chip->match_type == V4L2_CHIP_MATCH_HOST) {
 294                 if (v4l2_chip_match_host(chip->match_type, chip->match_chip))
 295                         chip->ident = V4L2_IDENT_CX23418;
 296                 return 0;
 297         }
 298         if (chip->match_type == V4L2_CHIP_MATCH_I2C_DRIVER)
 299                 return cx18_i2c_id(cx, chip->match_chip, VIDIOC_G_CHIP_IDENT,
 300                                         chip);
 301         if (chip->match_type == V4L2_CHIP_MATCH_I2C_ADDR)
 302                 return cx18_call_i2c_client(cx, chip->match_chip,
 303                                                 VIDIOC_G_CHIP_IDENT, chip);
 304         return -EINVAL;
 305 }
 306
 307 static int cx18_g_register(struct file *file, void *fh,
 308                                 struct v4l2_register *reg)
 309 {
 310         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 311
 312         CX18_DEBUG_IOCTL("VIDIOC_DBG_G_REGISTER\n");
 313
 314         if (v4l2_chip_match_host(reg->match_type, reg->match_chip))
 315                 return cx18_cxc(cx, VIDIOC_DBG_G_REGISTER, reg);
 316         if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER)
 317                 return cx18_i2c_id(cx, reg->match_chip, VIDIOC_DBG_G_REGISTER,
 318                                         reg);
 319         return cx18_call_i2c_client(cx, reg->match_chip, VIDIOC_DBG_G_REGISTER,
 320                                         reg);
 321 }
 322
 323 static int cx18_s_register(struct file *file, void *fh,
 324                                 struct v4l2_register *reg)
 325 {
 326         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 327
 328         CX18_DEBUG_IOCTL("VIDIOC_DBG_S_REGISTER\n");
 329
 330         if (v4l2_chip_match_host(reg->match_type, reg->match_chip))
 331                 return cx18_cxc(cx, VIDIOC_DBG_S_REGISTER, reg);
 332         if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER)
 333                 return cx18_i2c_id(cx, reg->match_chip, VIDIOC_DBG_S_REGISTER,
 334                                         reg);
 335         return cx18_call_i2c_client(cx, reg->match_chip, VIDIOC_DBG_S_REGISTER,
 336                                         reg);
 337 }
 338
 339 static int cx18_g_priority(struct file *file, void *fh, enum v4l2_priority *p)
 340 {
 341         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 342
 343         CX18_DEBUG_IOCTL("VIDIOC_G_PRIORITY\n");
 344
 345         *p = v4l2_prio_max(&cx->prio);
 346         return 0;
 347 }
 348
 349 static int cx18_s_priority(struct file *file, void *fh, enum v4l2_priority prio)
 350 {
 351         struct cx18_open_id *id = fh;
 352         struct cx18 *cx = id->cx;
 353
 354         CX18_DEBUG_IOCTL("VIDIOC_S_PRIORITY\n");
 355
 356         return v4l2_prio_change(&cx->prio, &id->prio, prio);
 357 }
 358
 359 static int cx18_querycap(struct file *file, void *fh,
 360                                 struct v4l2_capability *vcap)
 361 {
 362         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 363
 364         CX18_DEBUG_IOCTL("VIDIOC_QUERYCAP\n");
 365
 366         strlcpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver));
 367         strlcpy(vcap->card, cx->card_name, sizeof(vcap->card));
 368         strlcpy(vcap->bus_info, pci_name(cx->dev), sizeof(vcap->bus_info));
 369         vcap->version = CX18_DRIVER_VERSION;        /* version */
 370         vcap->capabilities = cx->v4l2_cap;          /* capabilities */
 371         return 0;
 372 }
 373
 374 static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
 375 {
 376         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 377
 378         CX18_DEBUG_IOCTL("VIDIOC_ENUMAUDIO\n");
 379
 380         return cx18_get_audio_input(cx, vin->index, vin);
 381 }
 382
 383 static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
 384 {
 385         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 386
 387         CX18_DEBUG_IOCTL("VIDIOC_G_AUDIO\n");
 388
 389         vin->index = cx->audio_input;
 390         return cx18_get_audio_input(cx, vin->index, vin);
 391 }
 392
 393 static int cx18_s_audio(struct file *file, void *fh, struct v4l2_audio *vout)
 394 {
 395         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 396
 397         CX18_DEBUG_IOCTL("VIDIOC_S_AUDIO\n");
 398
 399         if (vout->index >= cx->nof_audio_inputs)
 400                 return -EINVAL;
 401         cx->audio_input = vout->index;
 402         cx18_audio_set_io(cx);
 403         return 0;
 404 }
 405
 406 static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin)
 407 {
 408         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 409
 410         CX18_DEBUG_IOCTL("VIDIOC_ENUMINPUT\n");
 411
 412         /* set it to defaults from our table */
 413         return cx18_get_input(cx, vin->index, vin);
 414 }
 415
 416 static int cx18_cropcap(struct file *file, void *fh,
 417                         struct v4l2_cropcap *cropcap)
 418 {
 419         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 420
 421         CX18_DEBUG_IOCTL("VIDIOC_CROPCAP\n");
 422
 423         if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 424                 return -EINVAL;
 425         cropcap->bounds.top = cropcap->bounds.left = 0;
 426         cropcap->bounds.width = 720;
 427         cropcap->bounds.height = cx->is_50hz ? 576 : 480;
 428         cropcap->pixelaspect.numerator = cx->is_50hz ? 59 : 10;
 429         cropcap->pixelaspect.denominator = cx->is_50hz ? 54 : 11;
 430         cropcap->defrect = cropcap->bounds;
 431         return 0;
 432 }
 433
 434 static int cx18_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
 435 {
 436         struct cx18_open_id *id = fh;
 437         struct cx18 *cx = id->cx;
 438         int ret;
 439
 440         ret = v4l2_prio_check(&cx->prio, &id->prio);
 441         if (ret)
 442                 return ret;
 443
 444         CX18_DEBUG_IOCTL("VIDIOC_S_CROP\n");
 445
 446         if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 447                 return -EINVAL;
 448         return cx18_av_cmd(cx, VIDIOC_S_CROP, crop);
 449 }
 450
 451 static int cx18_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
 452 {
 453         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 454
 455         CX18_DEBUG_IOCTL("VIDIOC_G_CROP\n");
 456
 457         if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 458                 return -EINVAL;
 459         return cx18_av_cmd(cx, VIDIOC_G_CROP, crop);
 460 }
 461
 462 static int cx18_enum_fmt_vid_cap(struct file *file, void *fh,
 463                                         struct v4l2_fmtdesc *fmt)
 464 {
 465         static struct v4l2_fmtdesc formats[] = {
 466                 { 0, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0,
 467                   "HM12 (YUV 4:1:1)", V4L2_PIX_FMT_HM12, { 0, 0, 0, 0 }
 468                 },
 469                 { 1, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FMT_FLAG_COMPRESSED,
 470                   "MPEG", V4L2_PIX_FMT_MPEG, { 0, 0, 0, 0 }
 471                 }
 472         };
 473
 474         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 475
 476         CX18_DEBUG_IOCTL("VIDIOC_ENUM_FMT: V4L2_BUF_TYPE_VIDEO_CAPTURE\n");
 477
 478         if (fmt->index > 1)
 479                 return -EINVAL;
 480         *fmt = formats[fmt->index];
 481         return 0;
 482 }
 483
 484 static int cx18_g_input(struct file *file, void *fh, unsigned int *i)
 485 {
 486         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 487
 488         CX18_DEBUG_IOCTL("VIDIOC_G_INPUT\n");
 489
 490         *i = cx->active_input;
 491         return 0;
 492 }
 493
 494 int cx18_s_input(struct file *file, void *fh, unsigned int inp)
 495 {
 496         struct cx18_open_id *id = fh;
 497         struct cx18 *cx = id->cx;
 498         int ret;
 499
 500         ret = v4l2_prio_check(&cx->prio, &id->prio);
 501         if (ret)
 502                 return ret;
 503
 504         CX18_DEBUG_IOCTL("VIDIOC_S_INPUT\n");
 505
 506         if (inp < 0 || inp >= cx->nof_inputs)
 507                 return -EINVAL;
 508
 509         if (inp == cx->active_input) {
 510                 CX18_DEBUG_INFO("Input unchanged\n");
 511                 return 0;
 512         }
 513
 514         CX18_DEBUG_INFO("Changing input from %d to %d\n",
 515                         cx->active_input, inp);
 516
 517         cx->active_input = inp;
 518         /* Set the audio input to whatever is appropriate for the input type. */
 519         cx->audio_input = cx->card->video_inputs[inp].audio_index;
 520
 521         /* prevent others from messing with the streams until
 522            we're finished changing inputs. */
 523         cx18_mute(cx);
 524         cx18_video_set_io(cx);
 525         cx18_audio_set_io(cx);
 526         cx18_unmute(cx);
 527         return 0;
 528 }
 529
 530 static int cx18_g_frequency(struct file *file, void *fh,
 531                                 struct v4l2_frequency *vf)
 532 {
 533         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 534
 535         CX18_DEBUG_IOCTL("VIDIOC_G_FREQUENCY\n");
 536
 537         if (vf->tuner != 0)
 538                 return -EINVAL;
 539
 540         cx18_call_i2c_clients(cx, VIDIOC_G_FREQUENCY, vf);
 541         return 0;
 542 }
 543
 544 int cx18_s_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
 545 {
 546         struct cx18_open_id *id = fh;
 547         struct cx18 *cx = id->cx;
 548         int ret;
 549
 550         ret = v4l2_prio_check(&cx->prio, &id->prio);
 551         if (ret)
 552                 return ret;
 553
 554         CX18_DEBUG_IOCTL("VIDIOC_S_FREQUENCY\n");
 555
 556         if (vf->tuner != 0)
 557                 return -EINVAL;
 558
 559         cx18_mute(cx);
 560         CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency);
 561         cx18_call_i2c_clients(cx, VIDIOC_S_FREQUENCY, vf);
 562         cx18_unmute(cx);
 563         return 0;
 564 }
 565
 566 static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std)
 567 {
 568         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 569
 570         CX18_DEBUG_IOCTL("VIDIOC_G_STD\n");
 571
 572         *std = cx->std;
 573         return 0;
 574 }
 575
 576 int cx18_s_std(struct file *file, void *fh, v4l2_std_id *std)
 577 {
 578         struct cx18_open_id *id = fh;
 579         struct cx18 *cx = id->cx;
 580         int ret;
 581
 582         ret = v4l2_prio_check(&cx->prio, &id->prio);
 583         if (ret)
 584                 return ret;
 585
 586         CX18_DEBUG_IOCTL("VIDIOC_S_STD\n");
 587
 588         if ((*std & V4L2_STD_ALL) == 0)
 589                 return -EINVAL;
 590
 591         if (*std == cx->std)
 592                 return 0;
 593
 594         if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ||
 595             atomic_read(&cx->ana_capturing) > 0) {
 596                 /* Switching standard would turn off the radio or mess
 597                    with already running streams, prevent that by
 598                    returning EBUSY. */
 599                 return -EBUSY;
 600         }
 601
 602         cx->std = *std;
 603         cx->is_60hz = (*std & V4L2_STD_525_60) ? 1 : 0;
 604         cx->params.is_50hz = cx->is_50hz = !cx->is_60hz;
 605         cx->params.width = 720;
 606         cx->params.height = cx->is_50hz ? 576 : 480;
 607         cx->vbi.count = cx->is_50hz ? 18 : 12;
 608         cx->vbi.start[0] = cx->is_50hz ? 6 : 10;
 609         cx->vbi.start[1] = cx->is_50hz ? 318 : 273;
 610         cx->vbi.sliced_decoder_line_size = cx->is_60hz ? 272 : 284;
 611         CX18_DEBUG_INFO("Switching standard to %llx.\n",
 612                         (unsigned long long) cx->std);
 613
 614         /* Tuner */
 615         cx18_call_i2c_clients(cx, VIDIOC_S_STD, &cx->std);
 616         return 0;
 617 }
 618
 619 static int cx18_s_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
 620 {
 621         struct cx18_open_id *id = fh;
 622         struct cx18 *cx = id->cx;
 623         int ret;
 624
 625         ret = v4l2_prio_check(&cx->prio, &id->prio);
 626         if (ret)
 627                 return ret;
 628
 629         CX18_DEBUG_IOCTL("VIDIOC_S_TUNER\n");
 630
 631         if (vt->index != 0)
 632                 return -EINVAL;
 633
 634         /* Setting tuner can only set audio mode */
 635         cx18_call_i2c_clients(cx, VIDIOC_S_TUNER, vt);
 636
 637         return 0;
 638 }
 639
 640 static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
 641 {
 642         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 643
 644         CX18_DEBUG_IOCTL("VIDIOC_G_TUNER\n");
 645
 646         if (vt->index != 0)
 647                 return -EINVAL;
 648
 649         cx18_call_i2c_clients(cx, VIDIOC_G_TUNER, vt);
 650
 651         if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags)) {
 652                 strlcpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name));
 653                 vt->type = V4L2_TUNER_RADIO;
 654         } else {
 655                 strlcpy(vt->name, "cx18 TV Tuner", sizeof(vt->name));
 656                 vt->type = V4L2_TUNER_ANALOG_TV;
 657         }
 658
 659         return 0;
 660 }
 661
 662 static int cx18_g_sliced_vbi_cap(struct file *file, void *fh,
 663                                         struct v4l2_sliced_vbi_cap *cap)
 664 {
 665         return -EINVAL;
 666 }
 667
 668 static int cx18_g_enc_index(struct file *file, void *fh,
 669                                 struct v4l2_enc_idx *idx)
 670 {
 671         return -EINVAL;
 672 }
 673
 674 static int cx18_encoder_cmd(struct file *file, void *fh,
 675                                 struct v4l2_encoder_cmd *enc)
 676 {
 677         struct cx18_open_id *id = fh;
 678         struct cx18 *cx = id->cx;
 679
 680         CX18_DEBUG_IOCTL("VIDIOC_ENCODER_CMD:\n");
 681
 682         switch (enc->cmd) {
 683         case V4L2_ENC_CMD_START:
 684                 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
 685                 enc->flags = 0;
 686                 return cx18_start_capture(id);
 687
 688         case V4L2_ENC_CMD_STOP:
 689                 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
 690                 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
 691                 cx18_stop_capture(id,
 692                                   enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END);
 693                 break;
 694
 695         case V4L2_ENC_CMD_PAUSE:
 696                 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
 697                 enc->flags = 0;
 698                 if (!atomic_read(&cx->ana_capturing))
 699                         return -EPERM;
 700                 if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
 701                         return 0;
 702                 cx18_mute(cx);
 703                 cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, cx18_find_handle(cx));
 704                 break;
 705
 706         case V4L2_ENC_CMD_RESUME:
 707                 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
 708                 enc->flags = 0;
 709                 if (!atomic_read(&cx->ana_capturing))
 710                         return -EPERM;
 711                 if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
 712                         return 0;
 713                 cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, cx18_find_handle(cx));
 714                 cx18_unmute(cx);
 715                 break;
 716
 717         default:
 718                 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
 719                 return -EINVAL;
 720         }
 721         return 0;
 722 }
 723
 724 static int cx18_try_encoder_cmd(struct file *file, void *fh,
 725                                 struct v4l2_encoder_cmd *enc)
 726 {
 727         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 728
 729         CX18_DEBUG_IOCTL("VIDIOC_TRY_ENCDOER_CMD:\n");
 730
 731         switch (enc->cmd) {
 732         case V4L2_ENC_CMD_START:
 733                 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
 734                 enc->flags = 0;
 735                 break;
 736
 737         case V4L2_ENC_CMD_STOP:
 738                 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
 739                 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
 740                 break;
 741
 742         case V4L2_ENC_CMD_PAUSE:
 743                 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
 744                 enc->flags = 0;
 745                 break;
 746
 747         case V4L2_ENC_CMD_RESUME:
 748                 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
 749                 enc->flags = 0;
 750                 break;
 751
 752         default:
 753                 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
 754                 return -EINVAL;
 755         }
 756         return 0;
 757 }
 758
 759 static int cx18_log_status(struct file *file, void *fh)
 760 {
 761         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 762         struct v4l2_input vidin;
 763         struct v4l2_audio audin;
 764         int i;
 765
 766         CX18_DEBUG_IOCTL("VIDIOC_LOG_STATUS\n");
 767         CX18_INFO("=================  START STATUS CARD #%d  =================\n", cx->num);
 768         if (cx->hw_flags & CX18_HW_TVEEPROM) {
 769                 struct tveeprom tv;
 770
 771                 cx18_read_eeprom(cx, &tv);
 772         }
 773         cx18_call_i2c_clients(cx, VIDIOC_LOG_STATUS, NULL);
 774         cx18_get_input(cx, cx->active_input, &vidin);
 775         cx18_get_audio_input(cx, cx->audio_input, &audin);
 776         CX18_INFO("Video Input: %s\n", vidin.name);
 777         CX18_INFO("Audio Input: %s\n", audin.name);
 778         CX18_INFO("Tuner: %s\n",
 779                 test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ?  "Radio" : "TV");
 780         cx2341x_log_status(&cx->params, cx->name);
 781         CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags);
 782         for (i = 0; i < CX18_MAX_STREAMS; i++) {
 783                 struct cx18_stream *s = &cx->streams[i];
 784
 785                 if (s->v4l2dev == NULL || s->buffers == 0)
 786                         continue;
 787                 CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n",
 788                           s->name, s->s_flags,
 789                           (s->buffers - s->q_free.buffers) * 100 / s->buffers,
 790                           (s->buffers * s->buf_size) / 1024, s->buffers);
 791         }
 792         CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n",
 793                         (long long)cx->mpg_data_received,
 794                         (long long)cx->vbi_data_inserted);
 795         CX18_INFO("==================  END STATUS CARD #%d  ==================\n", cx->num);
 796         return 0;
 797 }
 798
 799 static int cx18_default(struct file *file, void *fh, int cmd, void *arg)
 800 {
 801         struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
 802
 803         switch (cmd) {
 804         case VIDIOC_INT_S_AUDIO_ROUTING: {
 805                 struct v4l2_routing *route = arg;
 806                 CX18_DEBUG_IOCTL("VIDIOC_INT_S_AUDIO_ROUTING (%d, %d)\n",
 807                                         route->input, route->output);
 808                 cx18_audio_set_route(cx, route);
 809                 break;
 810         }
 811         case VIDIOC_INT_RESET: {
 812                 u32 val = *(u32 *)arg;
 813                 CX18_DEBUG_IOCTL("VIDIOC_INT_RESET (%#10x)\n", val);
 814                 /* No op right now */
 815                 /* cx18_av_cmd(cx, cmd, arg) */
 816                 /* cx18_call_i2c_clients(cx, cmd, arg) */
 817                 break;
 818         }
 819         default:
 820                 if (cx18_debug & CX18_DBGFLG_IOCTL) {
 821                         printk(KERN_INFO "cx18%d ioctl: unsupported cmd: ",
 822                                  cx->num);
 823                         v4l_printk_ioctl(cmd);
 824                         printk("\n");
 825                 }
 826                 return -EINVAL;
 827         }
 828         return 0;
 829 }
 830
 831 int cx18_v4l2_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
 832                     unsigned long arg)
 833 {
 834         struct cx18_open_id *id = (struct cx18_open_id *)filp->private_data;
 835         struct cx18 *cx = id->cx;
 836         int res;
 837
 838         mutex_lock(&cx->serialize_lock);
 839         res = video_ioctl2(inode, filp, cmd, arg);
 840         mutex_unlock(&cx->serialize_lock);
 841         return res;
 842 }
 843
 844 void cx18_set_funcs(struct video_device *vdev)
 845 {
 846         vdev->vidioc_querycap                = cx18_querycap;
 847         vdev->vidioc_g_priority              = cx18_g_priority;
 848         vdev->vidioc_s_priority              = cx18_s_priority;
 849         vdev->vidioc_s_audio                 = cx18_s_audio;
 850         vdev->vidioc_g_audio                 = cx18_g_audio;
 851         vdev->vidioc_enumaudio               = cx18_enumaudio;
 852         vdev->vidioc_enum_input              = cx18_enum_input;
 853         vdev->vidioc_cropcap                 = cx18_cropcap;
 854         vdev->vidioc_s_crop                  = cx18_s_crop;
 855         vdev->vidioc_g_crop                  = cx18_g_crop;
 856         vdev->vidioc_g_input                 = cx18_g_input;
 857         vdev->vidioc_s_input                 = cx18_s_input;
 858         vdev->vidioc_g_frequency             = cx18_g_frequency;
 859         vdev->vidioc_s_frequency             = cx18_s_frequency;
 860         vdev->vidioc_s_tuner                 = cx18_s_tuner;
 861         vdev->vidioc_g_tuner                 = cx18_g_tuner;
 862         vdev->vidioc_g_enc_index             = cx18_g_enc_index;
 863         vdev->vidioc_g_std                   = cx18_g_std;
 864         vdev->vidioc_s_std                   = cx18_s_std;
 865         vdev->vidioc_log_status              = cx18_log_status;
 866         vdev->vidioc_enum_fmt_vid_cap        = cx18_enum_fmt_vid_cap;
 867         vdev->vidioc_encoder_cmd             = cx18_encoder_cmd;
 868         vdev->vidioc_try_encoder_cmd         = cx18_try_encoder_cmd;
 869         vdev->vidioc_g_fmt_vid_cap           = cx18_g_fmt_vid_cap;
 870         vdev->vidioc_g_fmt_vbi_cap           = cx18_g_fmt_vbi_cap;
 871         vdev->vidioc_g_fmt_sliced_vbi_cap    = cx18_g_fmt_sliced_vbi_cap;
 872         vdev->vidioc_s_fmt_vid_cap           = cx18_s_fmt_vid_cap;
 873         vdev->vidioc_s_fmt_vbi_cap           = cx18_s_fmt_vbi_cap;
 874         vdev->vidioc_s_fmt_sliced_vbi_cap    = cx18_s_fmt_sliced_vbi_cap;
 875         vdev->vidioc_try_fmt_vid_cap         = cx18_try_fmt_vid_cap;
 876         vdev->vidioc_try_fmt_vbi_cap         = cx18_try_fmt_vbi_cap;
 877         vdev->vidioc_try_fmt_sliced_vbi_cap  = cx18_try_fmt_sliced_vbi_cap;
 878         vdev->vidioc_g_sliced_vbi_cap        = cx18_g_sliced_vbi_cap;
 879         vdev->vidioc_g_chip_ident            = cx18_g_chip_ident;
 880         vdev->vidioc_g_register              = cx18_g_register;
 881         vdev->vidioc_s_register              = cx18_s_register;
 882         vdev->vidioc_default                 = cx18_default;
 883         vdev->vidioc_queryctrl               = cx18_queryctrl;
 884         vdev->vidioc_querymenu               = cx18_querymenu;
 885         vdev->vidioc_g_ctrl                  = cx18_g_ctrl;
 886         vdev->vidioc_s_ctrl                  = cx18_s_ctrl;
 887         vdev->vidioc_g_ext_ctrls             = cx18_g_ext_ctrls;
 888         vdev->vidioc_s_ext_ctrls             = cx18_s_ext_ctrls;
 889         vdev->vidioc_try_ext_ctrls           = cx18_try_ext_ctrls;
 890 }