drivers/media/video/saa7164/saa7164-vbi.c

   1 /*
   2  *  Driver for the NXP SAA7164 PCIe bridge
   3  *
   4  *  Copyright (c) 2010 Steven Toth <stoth@kernellabs.com>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include "saa7164.h"
  23
  24 static struct saa7164_tvnorm saa7164_tvnorms[] = {
  25         {
  26                 .name      = "NTSC-M",
  27                 .id        = V4L2_STD_NTSC_M,
  28         }, {
  29                 .name      = "NTSC-JP",
  30                 .id        = V4L2_STD_NTSC_M_JP,
  31         }
  32 };
  33
  34 static const u32 saa7164_v4l2_ctrls[] = {
  35         0
  36 };
  37
  38 /* Take the encoder configuration from the port struct and
  39  * flush it to the hardware.
  40  */
  41 static void saa7164_vbi_configure(struct saa7164_port *port)
  42 {
  43         struct saa7164_dev *dev = port->dev;
  44         dprintk(DBGLVL_VBI, "%s()\n", __func__);
  45
  46         port->vbi_params.width = port->width;
  47         port->vbi_params.height = port->height;
  48         port->vbi_params.is_50hz =
  49                 (port->encodernorm.id & V4L2_STD_625_50) != 0;
  50
  51         /* Set up the DIF (enable it) for analog mode by default */
  52         saa7164_api_initialize_dif(port);
  53
  54 //      /* Configure the correct video standard */
  55 //      saa7164_api_configure_dif(port, port->encodernorm.id);
  56
  57 //      /* Ensure the audio decoder is correct configured */
  58 //      saa7164_api_set_audio_std(port);
  59         dprintk(DBGLVL_VBI, "%s() ends\n", __func__);
  60 }
  61
  62 static int saa7164_vbi_buffers_dealloc(struct saa7164_port *port)
  63 {
  64         struct list_head *c, *n, *p, *q, *l, *v;
  65         struct saa7164_dev *dev = port->dev;
  66         struct saa7164_buffer *buf;
  67         struct saa7164_user_buffer *ubuf;
  68
  69         /* Remove any allocated buffers */
  70         mutex_lock(&port->dmaqueue_lock);
  71
  72         dprintk(DBGLVL_VBI, "%s(port=%d) dmaqueue\n", __func__, port->nr);
  73         list_for_each_safe(c, n, &port->dmaqueue.list) {
  74                 buf = list_entry(c, struct saa7164_buffer, list);
  75                 list_del(c);
  76                 saa7164_buffer_dealloc(buf);
  77         }
  78
  79         dprintk(DBGLVL_VBI, "%s(port=%d) used\n", __func__, port->nr);
  80         list_for_each_safe(p, q, &port->list_buf_used.list) {
  81                 ubuf = list_entry(p, struct saa7164_user_buffer, list);
  82                 list_del(p);
  83                 saa7164_buffer_dealloc_user(ubuf);
  84         }
  85
  86         dprintk(DBGLVL_VBI, "%s(port=%d) free\n", __func__, port->nr);
  87         list_for_each_safe(l, v, &port->list_buf_free.list) {
  88                 ubuf = list_entry(l, struct saa7164_user_buffer, list);
  89                 list_del(l);
  90                 saa7164_buffer_dealloc_user(ubuf);
  91         }
  92
  93         mutex_unlock(&port->dmaqueue_lock);
  94         dprintk(DBGLVL_VBI, "%s(port=%d) done\n", __func__, port->nr);
  95
  96         return 0;
  97 }
  98
  99 /* Dynamic buffer switch at vbi start time */
 100 static int saa7164_vbi_buffers_alloc(struct saa7164_port *port)
 101 {
 102         struct saa7164_dev *dev = port->dev;
 103         struct saa7164_buffer *buf;
 104         struct saa7164_user_buffer *ubuf;
 105         struct tmHWStreamParameters *params = &port->hw_streamingparams;
 106         int result = -ENODEV, i;
 107         int len = 0;
 108
 109         dprintk(DBGLVL_VBI, "%s()\n", __func__);
 110
 111         /* TODO: NTSC SPECIFIC */
 112         /* Init and establish defaults */
 113         params->samplesperline = 1440;
 114         params->numberoflines = 12;
 115         params->numberoflines = 18;
 116         params->pitch = 1600;
 117         params->pitch = 1440;
 118         params->numpagetables = 2 +
 119                 ((params->numberoflines * params->pitch) / PAGE_SIZE);
 120         params->bitspersample = 8;
 121         params->linethreshold = 0;
 122         params->pagetablelistvirt = 0;
 123         params->pagetablelistphys = 0;
 124         params->numpagetableentries = port->hwcfg.buffercount;
 125
 126         /* Allocate the PCI resources, buffers (hard) */
 127         for (i = 0; i < port->hwcfg.buffercount; i++) {
 128                 buf = saa7164_buffer_alloc(port,
 129                         params->numberoflines *
 130                         params->pitch);
 131
 132                 if (!buf) {
 133                         printk(KERN_ERR "%s() failed "
 134                                "(errno = %d), unable to allocate buffer\n",
 135                                 __func__, result);
 136                         result = -ENOMEM;
 137                         goto failed;
 138                 } else {
 139
 140                         mutex_lock(&port->dmaqueue_lock);
 141                         list_add_tail(&buf->list, &port->dmaqueue.list);
 142                         mutex_unlock(&port->dmaqueue_lock);
 143
 144                 }
 145         }
 146
 147         /* Allocate some kenrel kernel buffers for copying
 148          * to userpsace.
 149          */
 150         len = params->numberoflines * params->pitch;
 151
 152         if (vbi_buffers < 16)
 153                 vbi_buffers = 16;
 154         if (vbi_buffers > 512)
 155                 vbi_buffers = 512;
 156
 157         for (i = 0; i < vbi_buffers; i++) {
 158
 159                 ubuf = saa7164_buffer_alloc_user(dev, len);
 160                 if (ubuf) {
 161                         mutex_lock(&port->dmaqueue_lock);
 162                         list_add_tail(&ubuf->list, &port->list_buf_free.list);
 163                         mutex_unlock(&port->dmaqueue_lock);
 164                 }
 165
 166         }
 167
 168         result = 0;
 169
 170 failed:
 171         return result;
 172 }
 173
 174
 175 static int saa7164_vbi_initialize(struct saa7164_port *port)
 176 {
 177         saa7164_vbi_configure(port);
 178         return 0;
 179 }
 180
 181 /* -- V4L2 --------------------------------------------------------- */
 182 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *id)
 183 {
 184         struct saa7164_vbi_fh *fh = file->private_data;
 185         struct saa7164_port *port = fh->port;
 186         struct saa7164_dev *dev = port->dev;
 187         unsigned int i;
 188
 189         dprintk(DBGLVL_VBI, "%s(id=0x%x)\n", __func__, (u32)*id);
 190
 191         for (i = 0; i < ARRAY_SIZE(saa7164_tvnorms); i++) {
 192                 if (*id & saa7164_tvnorms[i].id)
 193                         break;
 194         }
 195         if (i == ARRAY_SIZE(saa7164_tvnorms))
 196                 return -EINVAL;
 197
 198         port->encodernorm = saa7164_tvnorms[i];
 199
 200         /* Update the audio decoder while is not running in
 201          * auto detect mode.
 202          */
 203         saa7164_api_set_audio_std(port);
 204
 205         dprintk(DBGLVL_VBI, "%s(id=0x%x) OK\n", __func__, (u32)*id);
 206
 207         return 0;
 208 }
 209
 210 static int vidioc_enum_input(struct file *file, void *priv,
 211         struct v4l2_input *i)
 212 {
 213         int n;
 214
 215         char *inputs[] = { "tuner", "composite", "svideo", "aux",
 216                 "composite 2", "svideo 2", "aux 2" };
 217
 218         if (i->index >= 7)
 219                 return -EINVAL;
 220
 221         strcpy(i->name, inputs[i->index]);
 222
 223         if (i->index == 0)
 224                 i->type = V4L2_INPUT_TYPE_TUNER;
 225         else
 226                 i->type  = V4L2_INPUT_TYPE_CAMERA;
 227
 228         for (n = 0; n < ARRAY_SIZE(saa7164_tvnorms); n++)
 229                 i->std |= saa7164_tvnorms[n].id;
 230
 231         return 0;
 232 }
 233
 234 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
 235 {
 236         struct saa7164_vbi_fh *fh = file->private_data;
 237         struct saa7164_port *port = fh->port;
 238         struct saa7164_dev *dev = port->dev;
 239
 240         if (saa7164_api_get_videomux(port) != SAA_OK)
 241                 return -EIO;
 242
 243         *i = (port->mux_input - 1);
 244
 245         dprintk(DBGLVL_VBI, "%s() input=%d\n", __func__, *i);
 246
 247         return 0;
 248 }
 249
 250 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
 251 {
 252         struct saa7164_vbi_fh *fh = file->private_data;
 253         struct saa7164_port *port = fh->port;
 254         struct saa7164_dev *dev = port->dev;
 255
 256         dprintk(DBGLVL_VBI, "%s() input=%d\n", __func__, i);
 257
 258         if (i >= 7)
 259                 return -EINVAL;
 260
 261         port->mux_input = i + 1;
 262
 263         if (saa7164_api_set_videomux(port) != SAA_OK)
 264                 return -EIO;
 265
 266         return 0;
 267 }
 268
 269 static int vidioc_g_tuner(struct file *file, void *priv,
 270         struct v4l2_tuner *t)
 271 {
 272         struct saa7164_vbi_fh *fh = file->private_data;
 273         struct saa7164_port *port = fh->port;
 274         struct saa7164_dev *dev = port->dev;
 275
 276         if (0 != t->index)
 277                 return -EINVAL;
 278
 279         strcpy(t->name, "tuner");
 280         t->type = V4L2_TUNER_ANALOG_TV;
 281         t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO;
 282
 283         dprintk(DBGLVL_VBI, "VIDIOC_G_TUNER: tuner type %d\n", t->type);
 284
 285         return 0;
 286 }
 287
 288 static int vidioc_s_tuner(struct file *file, void *priv,
 289         struct v4l2_tuner *t)
 290 {
 291         /* Update the A/V core */
 292         return 0;
 293 }
 294
 295 static int vidioc_g_frequency(struct file *file, void *priv,
 296         struct v4l2_frequency *f)
 297 {
 298         struct saa7164_vbi_fh *fh = file->private_data;
 299         struct saa7164_port *port = fh->port;
 300
 301         f->type = V4L2_TUNER_ANALOG_TV;
 302         f->frequency = port->freq;
 303
 304         return 0;
 305 }
 306
 307 static int vidioc_s_frequency(struct file *file, void *priv,
 308         struct v4l2_frequency *f)
 309 {
 310         struct saa7164_vbi_fh *fh = file->private_data;
 311         struct saa7164_port *port = fh->port;
 312         struct saa7164_dev *dev = port->dev;
 313         struct saa7164_port *tsport;
 314         struct dvb_frontend *fe;
 315
 316         /* TODO: Pull this for the std */
 317         struct analog_parameters params = {
 318                 .mode      = V4L2_TUNER_ANALOG_TV,
 319                 .audmode   = V4L2_TUNER_MODE_STEREO,
 320                 .std       = port->encodernorm.id,
 321                 .frequency = f->frequency
 322         };
 323
 324         /* Stop the encoder */
 325         dprintk(DBGLVL_VBI, "%s() frequency=%d tuner=%d\n", __func__,
 326                 f->frequency, f->tuner);
 327
 328         if (f->tuner != 0)
 329                 return -EINVAL;
 330
 331         if (f->type != V4L2_TUNER_ANALOG_TV)
 332                 return -EINVAL;
 333
 334         port->freq = f->frequency;
 335
 336         /* Update the hardware */
 337         if (port->nr == SAA7164_PORT_VBI1)
 338                 tsport = &dev->ports[SAA7164_PORT_TS1];
 339         else
 340         if (port->nr == SAA7164_PORT_VBI2)
 341                 tsport = &dev->ports[SAA7164_PORT_TS2];
 342         else
 343                 BUG();
 344
 345         fe = tsport->dvb.frontend;
 346
 347         if (fe && fe->ops.tuner_ops.set_analog_params)
 348                 fe->ops.tuner_ops.set_analog_params(fe, &params);
 349         else
 350                 printk(KERN_ERR "%s() No analog tuner, aborting\n", __func__);
 351
 352         saa7164_vbi_initialize(port);
 353
 354         return 0;
 355 }
 356
 357 static int vidioc_g_ctrl(struct file *file, void *priv,
 358         struct v4l2_control *ctl)
 359 {
 360         struct saa7164_vbi_fh *fh = file->private_data;
 361         struct saa7164_port *port = fh->port;
 362         struct saa7164_dev *dev = port->dev;
 363
 364         dprintk(DBGLVL_VBI, "%s(id=%d, value=%d)\n", __func__,
 365                 ctl->id, ctl->value);
 366
 367         switch (ctl->id) {
 368         case V4L2_CID_BRIGHTNESS:
 369                 ctl->value = port->ctl_brightness;
 370                 break;
 371         case V4L2_CID_CONTRAST:
 372                 ctl->value = port->ctl_contrast;
 373                 break;
 374         case V4L2_CID_SATURATION:
 375                 ctl->value = port->ctl_saturation;
 376                 break;
 377         case V4L2_CID_HUE:
 378                 ctl->value = port->ctl_hue;
 379                 break;
 380         case V4L2_CID_SHARPNESS:
 381                 ctl->value = port->ctl_sharpness;
 382                 break;
 383         case V4L2_CID_AUDIO_VOLUME:
 384                 ctl->value = port->ctl_volume;
 385                 break;
 386         default:
 387                 return -EINVAL;
 388         }
 389
 390         return 0;
 391 }
 392
 393 static int vidioc_s_ctrl(struct file *file, void *priv,
 394         struct v4l2_control *ctl)
 395 {
 396         struct saa7164_vbi_fh *fh = file->private_data;
 397         struct saa7164_port *port = fh->port;
 398         struct saa7164_dev *dev = port->dev;
 399         int ret = 0;
 400
 401         dprintk(DBGLVL_VBI, "%s(id=%d, value=%d)\n", __func__,
 402                 ctl->id, ctl->value);
 403
 404         switch (ctl->id) {
 405         case V4L2_CID_BRIGHTNESS:
 406                 if ((ctl->value >= 0) && (ctl->value <= 255)) {
 407                         port->ctl_brightness = ctl->value;
 408                         saa7164_api_set_usercontrol(port,
 409                                 PU_BRIGHTNESS_CONTROL);
 410                 } else
 411                         ret = -EINVAL;
 412                 break;
 413         case V4L2_CID_CONTRAST:
 414                 if ((ctl->value >= 0) && (ctl->value <= 255)) {
 415                         port->ctl_contrast = ctl->value;
 416                         saa7164_api_set_usercontrol(port, PU_CONTRAST_CONTROL);
 417                 } else
 418                         ret = -EINVAL;
 419                 break;
 420         case V4L2_CID_SATURATION:
 421                 if ((ctl->value >= 0) && (ctl->value <= 255)) {
 422                         port->ctl_saturation = ctl->value;
 423                         saa7164_api_set_usercontrol(port,
 424                                 PU_SATURATION_CONTROL);
 425                 } else
 426                         ret = -EINVAL;
 427                 break;
 428         case V4L2_CID_HUE:
 429                 if ((ctl->value >= 0) && (ctl->value <= 255)) {
 430                         port->ctl_hue = ctl->value;
 431                         saa7164_api_set_usercontrol(port, PU_HUE_CONTROL);
 432                 } else
 433                         ret = -EINVAL;
 434                 break;
 435         case V4L2_CID_SHARPNESS:
 436                 if ((ctl->value >= 0) && (ctl->value <= 255)) {
 437                         port->ctl_sharpness = ctl->value;
 438                         saa7164_api_set_usercontrol(port, PU_SHARPNESS_CONTROL);
 439                 } else
 440                         ret = -EINVAL;
 441                 break;
 442         case V4L2_CID_AUDIO_VOLUME:
 443                 if ((ctl->value >= -83) && (ctl->value <= 24)) {
 444                         port->ctl_volume = ctl->value;
 445                         saa7164_api_set_audio_volume(port, port->ctl_volume);
 446                 } else
 447                         ret = -EINVAL;
 448                 break;
 449         default:
 450                 ret = -EINVAL;
 451         }
 452
 453         return ret;
 454 }
 455
 456 static int saa7164_get_ctrl(struct saa7164_port *port,
 457         struct v4l2_ext_control *ctrl)
 458 {
 459         struct saa7164_vbi_params *params = &port->vbi_params;
 460
 461         switch (ctrl->id) {
 462         case V4L2_CID_MPEG_STREAM_TYPE:
 463                 ctrl->value = params->stream_type;
 464                 break;
 465         case V4L2_CID_MPEG_AUDIO_MUTE:
 466                 ctrl->value = params->ctl_mute;
 467                 break;
 468         case V4L2_CID_MPEG_VIDEO_ASPECT:
 469                 ctrl->value = params->ctl_aspect;
 470                 break;
 471         case V4L2_CID_MPEG_VIDEO_B_FRAMES:
 472                 ctrl->value = params->refdist;
 473                 break;
 474         case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
 475                 ctrl->value = params->gop_size;
 476                 break;
 477         default:
 478                 return -EINVAL;
 479         }
 480         return 0;
 481 }
 482
 483 static int vidioc_g_ext_ctrls(struct file *file, void *priv,
 484         struct v4l2_ext_controls *ctrls)
 485 {
 486         struct saa7164_vbi_fh *fh = file->private_data;
 487         struct saa7164_port *port = fh->port;
 488         int i, err = 0;
 489
 490         if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
 491                 for (i = 0; i < ctrls->count; i++) {
 492                         struct v4l2_ext_control *ctrl = ctrls->controls + i;
 493
 494                         err = saa7164_get_ctrl(port, ctrl);
 495                         if (err) {
 496                                 ctrls->error_idx = i;
 497                                 break;
 498                         }
 499                 }
 500                 return err;
 501
 502         }
 503
 504         return -EINVAL;
 505 }
 506
 507 static int saa7164_try_ctrl(struct v4l2_ext_control *ctrl, int ac3)
 508 {
 509         int ret = -EINVAL;
 510
 511         switch (ctrl->id) {
 512         case V4L2_CID_MPEG_STREAM_TYPE:
 513                 if ((ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_PS) ||
 514                         (ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_TS))
 515                         ret = 0;
 516                 break;
 517         case V4L2_CID_MPEG_AUDIO_MUTE:
 518                 if ((ctrl->value >= 0) &&
 519                         (ctrl->value <= 1))
 520                         ret = 0;
 521                 break;
 522         case V4L2_CID_MPEG_VIDEO_ASPECT:
 523                 if ((ctrl->value >= V4L2_MPEG_VIDEO_ASPECT_1x1) &&
 524                         (ctrl->value <= V4L2_MPEG_VIDEO_ASPECT_221x100))
 525                         ret = 0;
 526                 break;
 527         case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
 528                 if ((ctrl->value >= 0) &&
 529                         (ctrl->value <= 255))
 530                         ret = 0;
 531                 break;
 532         case V4L2_CID_MPEG_VIDEO_B_FRAMES:
 533                 if ((ctrl->value >= 1) &&
 534                         (ctrl->value <= 3))
 535                         ret = 0;
 536                 break;
 537         default:
 538                 ret = -EINVAL;
 539         }
 540
 541         return ret;
 542 }
 543
 544 static int vidioc_try_ext_ctrls(struct file *file, void *priv,
 545         struct v4l2_ext_controls *ctrls)
 546 {
 547         int i, err = 0;
 548
 549         if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
 550                 for (i = 0; i < ctrls->count; i++) {
 551                         struct v4l2_ext_control *ctrl = ctrls->controls + i;
 552
 553                         err = saa7164_try_ctrl(ctrl, 0);
 554                         if (err) {
 555                                 ctrls->error_idx = i;
 556                                 break;
 557                         }
 558                 }
 559                 return err;
 560         }
 561
 562         return -EINVAL;
 563 }
 564
 565 static int saa7164_set_ctrl(struct saa7164_port *port,
 566         struct v4l2_ext_control *ctrl)
 567 {
 568         struct saa7164_vbi_params *params = &port->vbi_params;
 569         int ret = 0;
 570
 571         switch (ctrl->id) {
 572         case V4L2_CID_MPEG_STREAM_TYPE:
 573                 params->stream_type = ctrl->value;
 574                 break;
 575         case V4L2_CID_MPEG_AUDIO_MUTE:
 576                 params->ctl_mute = ctrl->value;
 577                 ret = saa7164_api_audio_mute(port, params->ctl_mute);
 578                 if (ret != SAA_OK) {
 579                         printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__,
 580                                 ret);
 581                         ret = -EIO;
 582                 }
 583                 break;
 584         case V4L2_CID_MPEG_VIDEO_ASPECT:
 585                 params->ctl_aspect = ctrl->value;
 586                 ret = saa7164_api_set_aspect_ratio(port);
 587                 if (ret != SAA_OK) {
 588                         printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__,
 589                                 ret);
 590                         ret = -EIO;
 591                 }
 592                 break;
 593         case V4L2_CID_MPEG_VIDEO_B_FRAMES:
 594                 params->refdist = ctrl->value;
 595                 break;
 596         case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
 597                 params->gop_size = ctrl->value;
 598                 break;
 599         default:
 600                 return -EINVAL;
 601         }
 602
 603         /* TODO: Update the hardware */
 604
 605         return ret;
 606 }
 607
 608 static int vidioc_s_ext_ctrls(struct file *file, void *priv,
 609         struct v4l2_ext_controls *ctrls)
 610 {
 611         struct saa7164_vbi_fh *fh = file->private_data;
 612         struct saa7164_port *port = fh->port;
 613         int i, err = 0;
 614
 615         if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
 616                 for (i = 0; i < ctrls->count; i++) {
 617                         struct v4l2_ext_control *ctrl = ctrls->controls + i;
 618
 619                         err = saa7164_try_ctrl(ctrl, 0);
 620                         if (err) {
 621                                 ctrls->error_idx = i;
 622                                 break;
 623                         }
 624                         err = saa7164_set_ctrl(port, ctrl);
 625                         if (err) {
 626                                 ctrls->error_idx = i;
 627                                 break;
 628                         }
 629                 }
 630                 return err;
 631
 632         }
 633
 634         return -EINVAL;
 635 }
 636
 637 static int vidioc_querycap(struct file *file, void  *priv,
 638         struct v4l2_capability *cap)
 639 {
 640         struct saa7164_vbi_fh *fh = file->private_data;
 641         struct saa7164_port *port = fh->port;
 642         struct saa7164_dev *dev = port->dev;
 643
 644         strcpy(cap->driver, dev->name);
 645         strlcpy(cap->card, saa7164_boards[dev->board].name,
 646                 sizeof(cap->card));
 647         sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
 648
 649         cap->capabilities =
 650                 V4L2_CAP_VBI_CAPTURE |
 651                 V4L2_CAP_READWRITE     |
 652                 0;
 653
 654         cap->capabilities |= V4L2_CAP_TUNER;
 655         cap->version = 0;
 656
 657         return 0;
 658 }
 659
 660 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
 661         struct v4l2_fmtdesc *f)
 662 {
 663         if (f->index != 0)
 664                 return -EINVAL;
 665
 666         strlcpy(f->description, "VBI", sizeof(f->description));
 667         f->pixelformat = V4L2_PIX_FMT_MPEG;
 668
 669         return 0;
 670 }
 671
 672 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 673                                 struct v4l2_format *f)
 674 {
 675         struct saa7164_vbi_fh *fh = file->private_data;
 676         struct saa7164_port *port = fh->port;
 677         struct saa7164_dev *dev = port->dev;
 678
 679         f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
 680         f->fmt.pix.bytesperline = 0;
 681         f->fmt.pix.sizeimage    =
 682                 port->ts_packet_size * port->ts_packet_count;
 683         f->fmt.pix.colorspace   = 0;
 684         f->fmt.pix.width        = port->width;
 685         f->fmt.pix.height       = port->height;
 686
 687         dprintk(DBGLVL_VBI, "VIDIOC_G_FMT: w: %d, h: %d\n",
 688                 port->width, port->height);
 689
 690         return 0;
 691 }
 692
 693 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 694                                 struct v4l2_format *f)
 695 {
 696         struct saa7164_vbi_fh *fh = file->private_data;
 697         struct saa7164_port *port = fh->port;
 698         struct saa7164_dev *dev = port->dev;
 699
 700         f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
 701         f->fmt.pix.bytesperline = 0;
 702         f->fmt.pix.sizeimage    =
 703                 port->ts_packet_size * port->ts_packet_count;
 704         f->fmt.pix.colorspace   = 0;
 705         dprintk(DBGLVL_VBI, "VIDIOC_TRY_FMT: w: %d, h: %d\n",
 706                 port->width, port->height);
 707         return 0;
 708 }
 709
 710 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 711                                 struct v4l2_format *f)
 712 {
 713         struct saa7164_vbi_fh *fh = file->private_data;
 714         struct saa7164_port *port = fh->port;
 715         struct saa7164_dev *dev = port->dev;
 716
 717         f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
 718         f->fmt.pix.bytesperline = 0;
 719         f->fmt.pix.sizeimage    =
 720                 port->ts_packet_size * port->ts_packet_count;
 721         f->fmt.pix.colorspace   = 0;
 722
 723         dprintk(DBGLVL_VBI, "VIDIOC_S_FMT: w: %d, h: %d, f: %d\n",
 724                 f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.field);
 725
 726         return 0;
 727 }
 728
 729 static int vidioc_log_status(struct file *file, void *priv)
 730 {
 731         return 0;
 732 }
 733
 734 static int fill_queryctrl(struct saa7164_vbi_params *params,
 735         struct v4l2_queryctrl *c)
 736 {
 737         switch (c->id) {
 738         case V4L2_CID_BRIGHTNESS:
 739                 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 127);
 740         case V4L2_CID_CONTRAST:
 741                 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 66);
 742         case V4L2_CID_SATURATION:
 743                 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 62);
 744         case V4L2_CID_HUE:
 745                 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 128);
 746         case V4L2_CID_SHARPNESS:
 747                 return v4l2_ctrl_query_fill(c, 0x0, 0x0f, 1, 8);
 748         case V4L2_CID_MPEG_AUDIO_MUTE:
 749                 return v4l2_ctrl_query_fill(c, 0x0, 0x01, 1, 0);
 750         case V4L2_CID_AUDIO_VOLUME:
 751                 return v4l2_ctrl_query_fill(c, -83, 24, 1, 20);
 752         case V4L2_CID_MPEG_STREAM_TYPE:
 753                 return v4l2_ctrl_query_fill(c,
 754                         V4L2_MPEG_STREAM_TYPE_MPEG2_PS,
 755                         V4L2_MPEG_STREAM_TYPE_MPEG2_TS,
 756                         1, V4L2_MPEG_STREAM_TYPE_MPEG2_PS);
 757         case V4L2_CID_MPEG_VIDEO_ASPECT:
 758                 return v4l2_ctrl_query_fill(c,
 759                         V4L2_MPEG_VIDEO_ASPECT_1x1,
 760                         V4L2_MPEG_VIDEO_ASPECT_221x100,
 761                         1, V4L2_MPEG_VIDEO_ASPECT_4x3);
 762         case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
 763                 return v4l2_ctrl_query_fill(c, 1, 255, 1, 15);
 764         case V4L2_CID_MPEG_VIDEO_B_FRAMES:
 765                 return v4l2_ctrl_query_fill(c,
 766                         1, 3, 1, 1);
 767         default:
 768                 return -EINVAL;
 769         }
 770 }
 771
 772 static int vidioc_queryctrl(struct file *file, void *priv,
 773         struct v4l2_queryctrl *c)
 774 {
 775         struct saa7164_vbi_fh *fh = priv;
 776         struct saa7164_port *port = fh->port;
 777         int i, next;
 778         u32 id = c->id;
 779
 780         memset(c, 0, sizeof(*c));
 781
 782         next = !!(id & V4L2_CTRL_FLAG_NEXT_CTRL);
 783         c->id = id & ~V4L2_CTRL_FLAG_NEXT_CTRL;
 784
 785         for (i = 0; i < ARRAY_SIZE(saa7164_v4l2_ctrls); i++) {
 786                 if (next) {
 787                         if (c->id < saa7164_v4l2_ctrls[i])
 788                                 c->id = saa7164_v4l2_ctrls[i];
 789                         else
 790                                 continue;
 791                 }
 792
 793                 if (c->id == saa7164_v4l2_ctrls[i])
 794                         return fill_queryctrl(&port->vbi_params, c);
 795
 796                 if (c->id < saa7164_v4l2_ctrls[i])
 797                         break;
 798         }
 799
 800         return -EINVAL;
 801 }
 802
 803 static int saa7164_vbi_stop_port(struct saa7164_port *port)
 804 {
 805         struct saa7164_dev *dev = port->dev;
 806         int ret;
 807
 808         ret = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
 809         if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
 810                 printk(KERN_ERR "%s() stop transition failed, ret = 0x%x\n",
 811                         __func__, ret);
 812                 ret = -EIO;
 813         } else {
 814                 dprintk(DBGLVL_VBI, "%s()    Stopped\n", __func__);
 815                 ret = 0;
 816         }
 817
 818         return ret;
 819 }
 820
 821 static int saa7164_vbi_acquire_port(struct saa7164_port *port)
 822 {
 823         struct saa7164_dev *dev = port->dev;
 824         int ret;
 825
 826         ret = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);
 827         if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
 828                 printk(KERN_ERR "%s() acquire transition failed, ret = 0x%x\n",
 829                         __func__, ret);
 830                 ret = -EIO;
 831         } else {
 832                 dprintk(DBGLVL_VBI, "%s() Acquired\n", __func__);
 833                 ret = 0;
 834         }
 835
 836         return ret;
 837 }
 838
 839 static int saa7164_vbi_pause_port(struct saa7164_port *port)
 840 {
 841         struct saa7164_dev *dev = port->dev;
 842         int ret;
 843
 844         ret = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);
 845         if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
 846                 printk(KERN_ERR "%s() pause transition failed, ret = 0x%x\n",
 847                         __func__, ret);
 848                 ret = -EIO;
 849         } else {
 850                 dprintk(DBGLVL_VBI, "%s()   Paused\n", __func__);
 851                 ret = 0;
 852         }
 853
 854         return ret;
 855 }
 856
 857 /* Firmware is very windows centric, meaning you have to transition
 858  * the part through AVStream / KS Windows stages, forwards or backwards.
 859  * States are: stopped, acquired (h/w), paused, started.
 860  * We have to leave here will all of the soft buffers on the free list,
 861  * else the cfg_post() func won't have soft buffers to correctly configure.
 862  */
 863 static int saa7164_vbi_stop_streaming(struct saa7164_port *port)
 864 {
 865         struct saa7164_dev *dev = port->dev;
 866         struct saa7164_buffer *buf;
 867         struct saa7164_user_buffer *ubuf;
 868         struct list_head *c, *n;
 869         int ret;
 870
 871         dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr);
 872
 873         ret = saa7164_vbi_pause_port(port);
 874         ret = saa7164_vbi_acquire_port(port);
 875         ret = saa7164_vbi_stop_port(port);
 876
 877         dprintk(DBGLVL_VBI, "%s(port=%d) Hardware stopped\n", __func__,
 878                 port->nr);
 879
 880         /* Reset the state of any allocated buffer resources */
 881         mutex_lock(&port->dmaqueue_lock);
 882
 883         /* Reset the hard and soft buffer state */
 884         list_for_each_safe(c, n, &port->dmaqueue.list) {
 885                 buf = list_entry(c, struct saa7164_buffer, list);
 886                 buf->flags = SAA7164_BUFFER_FREE;
 887                 buf->pos = 0;
 888         }
 889
 890         list_for_each_safe(c, n, &port->list_buf_used.list) {
 891                 ubuf = list_entry(c, struct saa7164_user_buffer, list);
 892                 ubuf->pos = 0;
 893                 list_move_tail(&ubuf->list, &port->list_buf_free.list);
 894         }
 895
 896         mutex_unlock(&port->dmaqueue_lock);
 897
 898         /* Free any allocated resources */
 899         saa7164_vbi_buffers_dealloc(port);
 900
 901         dprintk(DBGLVL_VBI, "%s(port=%d) Released\n", __func__, port->nr);
 902
 903         return ret;
 904 }
 905
 906 static int saa7164_vbi_start_streaming(struct saa7164_port *port)
 907 {
 908         struct saa7164_dev *dev = port->dev;
 909         int result, ret = 0;
 910
 911         dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr);
 912
 913         port->done_first_interrupt = 0;
 914
 915         /* allocate all of the PCIe DMA buffer resources on the fly,
 916          * allowing switching between TS and PS payloads without
 917          * requiring a complete driver reload.
 918          */
 919         saa7164_vbi_buffers_alloc(port);
 920
 921         /* Configure the encoder with any cache values */
 922 //      saa7164_api_set_encoder(port);
 923 //      saa7164_api_get_encoder(port);
 924
 925         /* Place the empty buffers on the hardware */
 926         saa7164_buffer_cfg_port(port);
 927
 928         /* Negotiate format */
 929         if (saa7164_api_set_vbi_format(port) != SAA_OK) {
 930                 printk(KERN_ERR "%s() No supported VBI format\n", __func__);
 931                 ret = -EIO;
 932                 goto out;
 933         }
 934
 935         /* Acquire the hardware */
 936         result = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);
 937         if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 938                 printk(KERN_ERR "%s() acquire transition failed, res = 0x%x\n",
 939                         __func__, result);
 940
 941                 ret = -EIO;
 942                 goto out;
 943         } else
 944                 dprintk(DBGLVL_VBI, "%s()   Acquired\n", __func__);
 945
 946         /* Pause the hardware */
 947         result = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);
 948         if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 949                 printk(KERN_ERR "%s() pause transition failed, res = 0x%x\n",
 950                                 __func__, result);
 951
 952                 /* Stop the hardware, regardless */
 953                 result = saa7164_vbi_stop_port(port);
 954                 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 955                         printk(KERN_ERR "%s() pause/forced stop transition "
 956                                 "failed, res = 0x%x\n", __func__, result);
 957                 }
 958
 959                 ret = -EIO;
 960                 goto out;
 961         } else
 962                 dprintk(DBGLVL_VBI, "%s()   Paused\n", __func__);
 963
 964         /* Start the hardware */
 965         result = saa7164_api_transition_port(port, SAA_DMASTATE_RUN);
 966         if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 967                 printk(KERN_ERR "%s() run transition failed, result = 0x%x\n",
 968                                 __func__, result);
 969
 970                 /* Stop the hardware, regardless */
 971                 result = saa7164_vbi_acquire_port(port);
 972                 result = saa7164_vbi_stop_port(port);
 973                 if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 974                         printk(KERN_ERR "%s() run/forced stop transition "
 975                                 "failed, res = 0x%x\n", __func__, result);
 976                 }
 977
 978                 ret = -EIO;
 979         } else
 980                 dprintk(DBGLVL_VBI, "%s()   Running\n", __func__);
 981
 982 out:
 983         return ret;
 984 }
 985
 986 int saa7164_vbi_fmt(struct file *file, void *priv, struct v4l2_format *f)
 987 {
 988         /* ntsc */
 989         f->fmt.vbi.samples_per_line = 1600;
 990         f->fmt.vbi.samples_per_line = 1440;
 991         f->fmt.vbi.sampling_rate = 27000000;
 992         f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
 993         f->fmt.vbi.offset = 0;
 994         f->fmt.vbi.flags = 0;
 995         f->fmt.vbi.start[0] = 10;
 996         f->fmt.vbi.count[0] = 18;
 997         f->fmt.vbi.start[1] = 263 + 10 + 1;
 998         f->fmt.vbi.count[1] = 18;
 999         return 0;
1000 }
1001
1002 static int fops_open(struct file *file)
1003 {
1004         struct saa7164_dev *dev;
1005         struct saa7164_port *port;
1006         struct saa7164_vbi_fh *fh;
1007
1008         port = (struct saa7164_port *)video_get_drvdata(video_devdata(file));
1009         if (!port)
1010                 return -ENODEV;
1011
1012         dev = port->dev;
1013
1014         dprintk(DBGLVL_VBI, "%s()\n", __func__);
1015
1016         /* allocate + initialize per filehandle data */
1017         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
1018         if (NULL == fh)
1019                 return -ENOMEM;
1020
1021         file->private_data = fh;
1022         fh->port = port;
1023
1024         return 0;
1025 }
1026
1027 static int fops_release(struct file *file)
1028 {
1029         struct saa7164_vbi_fh *fh = file->private_data;
1030         struct saa7164_port *port = fh->port;
1031         struct saa7164_dev *dev = port->dev;
1032
1033         dprintk(DBGLVL_VBI, "%s()\n", __func__);
1034
1035         /* Shut device down on last close */
1036         if (atomic_cmpxchg(&fh->v4l_reading, 1, 0) == 1) {
1037                 if (atomic_dec_return(&port->v4l_reader_count) == 0) {
1038                         /* stop vbi capture then cancel buffers */
1039                         saa7164_vbi_stop_streaming(port);
1040                 }
1041         }
1042
1043         file->private_data = NULL;
1044         kfree(fh);
1045
1046         return 0;
1047 }
1048
1049 struct saa7164_user_buffer *saa7164_vbi_next_buf(struct saa7164_port *port)
1050 {
1051         struct saa7164_user_buffer *ubuf = 0;
1052         struct saa7164_dev *dev = port->dev;
1053         u32 crc;
1054
1055         mutex_lock(&port->dmaqueue_lock);
1056         if (!list_empty(&port->list_buf_used.list)) {
1057                 ubuf = list_first_entry(&port->list_buf_used.list,
1058                         struct saa7164_user_buffer, list);
1059
1060                 if (crc_checking) {
1061                         crc = crc32(0, ubuf->data, ubuf->actual_size);
1062                         if (crc != ubuf->crc) {
1063                                 printk(KERN_ERR "%s() ubuf %p crc became invalid, was 0x%x became 0x%x\n", __func__,
1064                                         ubuf, ubuf->crc, crc);
1065                         }
1066                 }
1067
1068         }
1069         mutex_unlock(&port->dmaqueue_lock);
1070
1071         dprintk(DBGLVL_VBI, "%s() returns %p\n", __func__, ubuf);
1072
1073         return ubuf;
1074 }
1075
1076 static ssize_t fops_read(struct file *file, char __user *buffer,
1077         size_t count, loff_t *pos)
1078 {
1079         struct saa7164_vbi_fh *fh = file->private_data;
1080         struct saa7164_port *port = fh->port;
1081         struct saa7164_user_buffer *ubuf = NULL;
1082         struct saa7164_dev *dev = port->dev;
1083         int ret = 0;
1084         int rem, cnt;
1085         u8 *p;
1086
1087         port->last_read_msecs_diff = port->last_read_msecs;
1088         port->last_read_msecs = jiffies_to_msecs(jiffies);
1089         port->last_read_msecs_diff = port->last_read_msecs -
1090                 port->last_read_msecs_diff;
1091
1092         saa7164_histogram_update(&port->read_interval,
1093                 port->last_read_msecs_diff);
1094
1095         if (*pos) {
1096                 printk(KERN_ERR "%s() ESPIPE\n", __func__);
1097                 return -ESPIPE;
1098         }
1099
1100         if (atomic_cmpxchg(&fh->v4l_reading, 0, 1) == 0) {
1101                 if (atomic_inc_return(&port->v4l_reader_count) == 1) {
1102
1103                         if (saa7164_vbi_initialize(port) < 0) {
1104                                 printk(KERN_ERR "%s() EINVAL\n", __func__);
1105                                 return -EINVAL;
1106                         }
1107
1108                         saa7164_vbi_start_streaming(port);
1109                         msleep(200);
1110                 }
1111         }
1112
1113         /* blocking wait for buffer */
1114         if ((file->f_flags & O_NONBLOCK) == 0) {
1115                 if (wait_event_interruptible(port->wait_read,
1116                         saa7164_vbi_next_buf(port))) {
1117                                 printk(KERN_ERR "%s() ERESTARTSYS\n", __func__);
1118                                 return -ERESTARTSYS;
1119                 }
1120         }
1121
1122         /* Pull the first buffer from the used list */
1123         ubuf = saa7164_vbi_next_buf(port);
1124
1125         while ((count > 0) && ubuf) {
1126
1127                 /* set remaining bytes to copy */
1128                 rem = ubuf->actual_size - ubuf->pos;
1129                 cnt = rem > count ? count : rem;
1130
1131                 p = ubuf->data + ubuf->pos;
1132
1133                 dprintk(DBGLVL_VBI,
1134                         "%s() count=%d cnt=%d rem=%d buf=%p buf->pos=%d\n",
1135                         __func__, (int)count, cnt, rem, ubuf, ubuf->pos);
1136
1137                 if (copy_to_user(buffer, p, cnt)) {
1138                         printk(KERN_ERR "%s() copy_to_user failed\n", __func__);
1139                         if (!ret) {
1140                                 printk(KERN_ERR "%s() EFAULT\n", __func__);
1141                                 ret = -EFAULT;
1142                         }
1143                         goto err;
1144                 }
1145
1146                 ubuf->pos += cnt;
1147                 count -= cnt;
1148                 buffer += cnt;
1149                 ret += cnt;
1150
1151                 if (ubuf->pos > ubuf->actual_size) {
1152                         printk(KERN_ERR "read() pos > actual, huh?\n");
1153                 }
1154
1155                 if (ubuf->pos == ubuf->actual_size) {
1156
1157                         /* finished with current buffer, take next buffer */
1158
1159                         /* Requeue the buffer on the free list */
1160                         ubuf->pos = 0;
1161
1162                         mutex_lock(&port->dmaqueue_lock);
1163                         list_move_tail(&ubuf->list, &port->list_buf_free.list);
1164                         mutex_unlock(&port->dmaqueue_lock);
1165
1166                         /* Dequeue next */
1167                         if ((file->f_flags & O_NONBLOCK) == 0) {
1168                                 if (wait_event_interruptible(port->wait_read,
1169                                         saa7164_vbi_next_buf(port))) {
1170                                                 break;
1171                                 }
1172                         }
1173                         ubuf = saa7164_vbi_next_buf(port);
1174                 }
1175         }
1176 err:
1177         if (!ret && !ubuf) {
1178                 printk(KERN_ERR "%s() EAGAIN\n", __func__);
1179                 ret = -EAGAIN;
1180         }
1181
1182         return ret;
1183 }
1184
1185 static unsigned int fops_poll(struct file *file, poll_table *wait)
1186 {
1187         struct saa7164_vbi_fh *fh = (struct saa7164_vbi_fh *)file->private_data;
1188         struct saa7164_port *port = fh->port;
1189         struct saa7164_user_buffer *ubuf;
1190         unsigned int mask = 0;
1191
1192         port->last_poll_msecs_diff = port->last_poll_msecs;
1193         port->last_poll_msecs = jiffies_to_msecs(jiffies);
1194         port->last_poll_msecs_diff = port->last_poll_msecs -
1195                 port->last_poll_msecs_diff;
1196
1197         saa7164_histogram_update(&port->poll_interval,
1198                 port->last_poll_msecs_diff);
1199
1200         if (!video_is_registered(port->v4l_device)) {
1201                 return -EIO;
1202         }
1203
1204         if (atomic_cmpxchg(&fh->v4l_reading, 0, 1) == 0) {
1205                 if (atomic_inc_return(&port->v4l_reader_count) == 1) {
1206                         if (saa7164_vbi_initialize(port) < 0)
1207                                 return -EINVAL;
1208                         saa7164_vbi_start_streaming(port);
1209                         msleep(200);
1210                 }
1211         }
1212
1213         /* blocking wait for buffer */
1214         if ((file->f_flags & O_NONBLOCK) == 0) {
1215                 if (wait_event_interruptible(port->wait_read,
1216                         saa7164_vbi_next_buf(port))) {
1217                                 return -ERESTARTSYS;
1218                 }
1219         }
1220
1221         /* Pull the first buffer from the used list */
1222         ubuf = list_first_entry(&port->list_buf_used.list,
1223                 struct saa7164_user_buffer, list);
1224
1225         if (ubuf)
1226                 mask |= POLLIN | POLLRDNORM;
1227
1228         return mask;
1229 }
1230 static const struct v4l2_file_operations vbi_fops = {
1231         .owner          = THIS_MODULE,
1232         .open           = fops_open,
1233         .release        = fops_release,
1234         .read           = fops_read,
1235         .poll           = fops_poll,
1236         .unlocked_ioctl = video_ioctl2,
1237 };
1238
1239 static const struct v4l2_ioctl_ops vbi_ioctl_ops = {
1240         .vidioc_s_std            = vidioc_s_std,
1241         .vidioc_enum_input       = vidioc_enum_input,
1242         .vidioc_g_input          = vidioc_g_input,
1243         .vidioc_s_input          = vidioc_s_input,
1244         .vidioc_g_tuner          = vidioc_g_tuner,
1245         .vidioc_s_tuner          = vidioc_s_tuner,
1246         .vidioc_g_frequency      = vidioc_g_frequency,
1247         .vidioc_s_frequency      = vidioc_s_frequency,
1248         .vidioc_s_ctrl           = vidioc_s_ctrl,
1249         .vidioc_g_ctrl           = vidioc_g_ctrl,
1250         .vidioc_querycap         = vidioc_querycap,
1251         .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1252         .vidioc_g_fmt_vid_cap    = vidioc_g_fmt_vid_cap,
1253         .vidioc_try_fmt_vid_cap  = vidioc_try_fmt_vid_cap,
1254         .vidioc_s_fmt_vid_cap    = vidioc_s_fmt_vid_cap,
1255         .vidioc_g_ext_ctrls      = vidioc_g_ext_ctrls,
1256         .vidioc_s_ext_ctrls      = vidioc_s_ext_ctrls,
1257         .vidioc_try_ext_ctrls    = vidioc_try_ext_ctrls,
1258         .vidioc_log_status       = vidioc_log_status,
1259         .vidioc_queryctrl        = vidioc_queryctrl,
1260 //      .vidioc_g_chip_ident     = saa7164_g_chip_ident,
1261 #ifdef CONFIG_VIDEO_ADV_DEBUG
1262 //      .vidioc_g_register       = saa7164_g_register,
1263 //      .vidioc_s_register       = saa7164_s_register,
1264 #endif
1265         .vidioc_g_fmt_vbi_cap    = saa7164_vbi_fmt,
1266         .vidioc_try_fmt_vbi_cap  = saa7164_vbi_fmt,
1267         .vidioc_s_fmt_vbi_cap    = saa7164_vbi_fmt,
1268 };
1269
1270 static struct video_device saa7164_vbi_template = {
1271         .name          = "saa7164",
1272         .fops          = &vbi_fops,
1273         .ioctl_ops     = &vbi_ioctl_ops,
1274         .minor         = -1,
1275         .tvnorms       = SAA7164_NORMS,
1276         .current_norm  = V4L2_STD_NTSC_M,
1277 };
1278
1279 static struct video_device *saa7164_vbi_alloc(
1280         struct saa7164_port *port,
1281         struct pci_dev *pci,
1282         struct video_device *template,
1283         char *type)
1284 {
1285         struct video_device *vfd;
1286         struct saa7164_dev *dev = port->dev;
1287
1288         dprintk(DBGLVL_VBI, "%s()\n", __func__);
1289
1290         vfd = video_device_alloc();
1291         if (NULL == vfd)
1292                 return NULL;
1293
1294         *vfd = *template;
1295         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name,
1296                 type, saa7164_boards[dev->board].name);
1297
1298         vfd->parent  = &pci->dev;
1299         vfd->release = video_device_release;
1300         return vfd;
1301 }
1302
1303 int saa7164_vbi_register(struct saa7164_port *port)
1304 {
1305         struct saa7164_dev *dev = port->dev;
1306         int result = -ENODEV;
1307
1308         dprintk(DBGLVL_VBI, "%s()\n", __func__);
1309
1310         if (port->type != SAA7164_MPEG_VBI)
1311                 BUG();
1312
1313         /* Sanity check that the PCI configuration space is active */
1314         if (port->hwcfg.BARLocation == 0) {
1315                 printk(KERN_ERR "%s() failed "
1316                        "(errno = %d), NO PCI configuration\n",
1317                         __func__, result);
1318                 result = -ENOMEM;
1319                 goto failed;
1320         }
1321
1322         /* Establish VBI defaults here */
1323
1324         /* Allocate and register the video device node */
1325         port->v4l_device = saa7164_vbi_alloc(port,
1326                 dev->pci, &saa7164_vbi_template, "vbi");
1327
1328         if (port->v4l_device == NULL) {
1329                 printk(KERN_INFO "%s: can't allocate vbi device\n",
1330                         dev->name);
1331                 result = -ENOMEM;
1332                 goto failed;
1333         }
1334
1335         video_set_drvdata(port->v4l_device, port);
1336         result = video_register_device(port->v4l_device,
1337                 VFL_TYPE_VBI, -1);
1338         if (result < 0) {
1339                 printk(KERN_INFO "%s: can't register vbi device\n",
1340                         dev->name);
1341                 /* TODO: We're going to leak here if we don't dealloc
1342                  The buffers above. The unreg function can't deal wit it.
1343                 */
1344                 goto failed;
1345         }
1346
1347         printk(KERN_INFO "%s: registered device vbi%d [vbi]\n",
1348                 dev->name, port->v4l_device->num);
1349
1350         /* Configure the hardware defaults */
1351
1352         result = 0;
1353 failed:
1354         return result;
1355 }
1356
1357 void saa7164_vbi_unregister(struct saa7164_port *port)
1358 {
1359         struct saa7164_dev *dev = port->dev;
1360
1361         dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr);
1362
1363         if (port->type != SAA7164_MPEG_VBI)
1364                 BUG();
1365
1366         if (port->v4l_device) {
1367                 if (port->v4l_device->minor != -1)
1368                         video_unregister_device(port->v4l_device);
1369                 else
1370                         video_device_release(port->v4l_device);
1371
1372                 port->v4l_device = NULL;
1373         }
1374
1375 }