kernel/drivers/media/pci/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 #if 0
  56         saa7164_api_configure_dif(port, port->encodernorm.id);
  57 #endif
  58
  59 #if 0
  60         /* Ensure the audio decoder is correct configured */
  61         saa7164_api_set_audio_std(port);
  62 #endif
  63         dprintk(DBGLVL_VBI, "%s() ends\n", __func__);
  64 }
  65
  66 static int saa7164_vbi_buffers_dealloc(struct saa7164_port *port)
  67 {
  68         struct list_head *c, *n, *p, *q, *l, *v;
  69         struct saa7164_dev *dev = port->dev;
  70         struct saa7164_buffer *buf;
  71         struct saa7164_user_buffer *ubuf;
  72
  73         /* Remove any allocated buffers */
  74         mutex_lock(&port->dmaqueue_lock);
  75
  76         dprintk(DBGLVL_VBI, "%s(port=%d) dmaqueue\n", __func__, port->nr);
  77         list_for_each_safe(c, n, &port->dmaqueue.list) {
  78                 buf = list_entry(c, struct saa7164_buffer, list);
  79                 list_del(c);
  80                 saa7164_buffer_dealloc(buf);
  81         }
  82
  83         dprintk(DBGLVL_VBI, "%s(port=%d) used\n", __func__, port->nr);
  84         list_for_each_safe(p, q, &port->list_buf_used.list) {
  85                 ubuf = list_entry(p, struct saa7164_user_buffer, list);
  86                 list_del(p);
  87                 saa7164_buffer_dealloc_user(ubuf);
  88         }
  89
  90         dprintk(DBGLVL_VBI, "%s(port=%d) free\n", __func__, port->nr);
  91         list_for_each_safe(l, v, &port->list_buf_free.list) {
  92                 ubuf = list_entry(l, struct saa7164_user_buffer, list);
  93                 list_del(l);
  94                 saa7164_buffer_dealloc_user(ubuf);
  95         }
  96
  97         mutex_unlock(&port->dmaqueue_lock);
  98         dprintk(DBGLVL_VBI, "%s(port=%d) done\n", __func__, port->nr);
  99
 100         return 0;
 101 }
 102
 103 /* Dynamic buffer switch at vbi start time */
 104 static int saa7164_vbi_buffers_alloc(struct saa7164_port *port)
 105 {
 106         struct saa7164_dev *dev = port->dev;
 107         struct saa7164_buffer *buf;
 108         struct saa7164_user_buffer *ubuf;
 109         struct tmHWStreamParameters *params = &port->hw_streamingparams;
 110         int result = -ENODEV, i;
 111         int len = 0;
 112
 113         dprintk(DBGLVL_VBI, "%s()\n", __func__);
 114
 115         /* TODO: NTSC SPECIFIC */
 116         /* Init and establish defaults */
 117         params->samplesperline = 1440;
 118         params->numberoflines = 12;
 119         params->numberoflines = 18;
 120         params->pitch = 1600;
 121         params->pitch = 1440;
 122         params->numpagetables = 2 +
 123                 ((params->numberoflines * params->pitch) / PAGE_SIZE);
 124         params->bitspersample = 8;
 125         params->linethreshold = 0;
 126         params->pagetablelistvirt = NULL;
 127         params->pagetablelistphys = NULL;
 128         params->numpagetableentries = port->hwcfg.buffercount;
 129
 130         /* Allocate the PCI resources, buffers (hard) */
 131         for (i = 0; i < port->hwcfg.buffercount; i++) {
 132                 buf = saa7164_buffer_alloc(port,
 133                         params->numberoflines *
 134                         params->pitch);
 135
 136                 if (!buf) {
 137                         printk(KERN_ERR "%s() failed "
 138                                "(errno = %d), unable to allocate buffer\n",
 139                                 __func__, result);
 140                         result = -ENOMEM;
 141                         goto failed;
 142                 } else {
 143
 144                         mutex_lock(&port->dmaqueue_lock);
 145                         list_add_tail(&buf->list, &port->dmaqueue.list);
 146                         mutex_unlock(&port->dmaqueue_lock);
 147
 148                 }
 149         }
 150
 151         /* Allocate some kernel buffers for copying
 152          * to userpsace.
 153          */
 154         len = params->numberoflines * params->pitch;
 155
 156         if (vbi_buffers < 16)
 157                 vbi_buffers = 16;
 158         if (vbi_buffers > 512)
 159                 vbi_buffers = 512;
 160
 161         for (i = 0; i < vbi_buffers; i++) {
 162
 163                 ubuf = saa7164_buffer_alloc_user(dev, len);
 164                 if (ubuf) {
 165                         mutex_lock(&port->dmaqueue_lock);
 166                         list_add_tail(&ubuf->list, &port->list_buf_free.list);
 167                         mutex_unlock(&port->dmaqueue_lock);
 168                 }
 169
 170         }
 171
 172         result = 0;
 173
 174 failed:
 175         return result;
 176 }
 177
 178
 179 static int saa7164_vbi_initialize(struct saa7164_port *port)
 180 {
 181         saa7164_vbi_configure(port);
 182         return 0;
 183 }
 184
 185 /* -- V4L2 --------------------------------------------------------- */
 186 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id id)
 187 {
 188         struct saa7164_vbi_fh *fh = file->private_data;
 189         struct saa7164_port *port = fh->port;
 190         struct saa7164_dev *dev = port->dev;
 191         unsigned int i;
 192
 193         dprintk(DBGLVL_VBI, "%s(id=0x%x)\n", __func__, (u32)id);
 194
 195         for (i = 0; i < ARRAY_SIZE(saa7164_tvnorms); i++) {
 196                 if (id & saa7164_tvnorms[i].id)
 197                         break;
 198         }
 199         if (i == ARRAY_SIZE(saa7164_tvnorms))
 200                 return -EINVAL;
 201
 202         port->encodernorm = saa7164_tvnorms[i];
 203         port->std = id;
 204
 205         /* Update the audio decoder while is not running in
 206          * auto detect mode.
 207          */
 208         saa7164_api_set_audio_std(port);
 209
 210         dprintk(DBGLVL_VBI, "%s(id=0x%x) OK\n", __func__, (u32)id);
 211
 212         return 0;
 213 }
 214
 215 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
 216 {
 217         struct saa7164_encoder_fh *fh = file->private_data;
 218         struct saa7164_port *port = fh->port;
 219
 220         *id = port->std;
 221         return 0;
 222 }
 223
 224 static int vidioc_enum_input(struct file *file, void *priv,
 225         struct v4l2_input *i)
 226 {
 227         int n;
 228
 229         char *inputs[] = { "tuner", "composite", "svideo", "aux",
 230                 "composite 2", "svideo 2", "aux 2" };
 231
 232         if (i->index >= 7)
 233                 return -EINVAL;
 234
 235         strcpy(i->name, inputs[i->index]);
 236
 237         if (i->index == 0)
 238                 i->type = V4L2_INPUT_TYPE_TUNER;
 239         else
 240                 i->type  = V4L2_INPUT_TYPE_CAMERA;
 241
 242         for (n = 0; n < ARRAY_SIZE(saa7164_tvnorms); n++)
 243                 i->std |= saa7164_tvnorms[n].id;
 244
 245         return 0;
 246 }
 247
 248 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
 249 {
 250         struct saa7164_vbi_fh *fh = file->private_data;
 251         struct saa7164_port *port = fh->port;
 252         struct saa7164_dev *dev = port->dev;
 253
 254         if (saa7164_api_get_videomux(port) != SAA_OK)
 255                 return -EIO;
 256
 257         *i = (port->mux_input - 1);
 258
 259         dprintk(DBGLVL_VBI, "%s() input=%d\n", __func__, *i);
 260
 261         return 0;
 262 }
 263
 264 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
 265 {
 266         struct saa7164_vbi_fh *fh = file->private_data;
 267         struct saa7164_port *port = fh->port;
 268         struct saa7164_dev *dev = port->dev;
 269
 270         dprintk(DBGLVL_VBI, "%s() input=%d\n", __func__, i);
 271
 272         if (i >= 7)
 273                 return -EINVAL;
 274
 275         port->mux_input = i + 1;
 276
 277         if (saa7164_api_set_videomux(port) != SAA_OK)
 278                 return -EIO;
 279
 280         return 0;
 281 }
 282
 283 static int vidioc_g_tuner(struct file *file, void *priv,
 284         struct v4l2_tuner *t)
 285 {
 286         struct saa7164_vbi_fh *fh = file->private_data;
 287         struct saa7164_port *port = fh->port;
 288         struct saa7164_dev *dev = port->dev;
 289
 290         if (0 != t->index)
 291                 return -EINVAL;
 292
 293         strcpy(t->name, "tuner");
 294         t->type = V4L2_TUNER_ANALOG_TV;
 295         t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO;
 296
 297         dprintk(DBGLVL_VBI, "VIDIOC_G_TUNER: tuner type %d\n", t->type);
 298
 299         return 0;
 300 }
 301
 302 static int vidioc_s_tuner(struct file *file, void *priv,
 303         const struct v4l2_tuner *t)
 304 {
 305         /* Update the A/V core */
 306         return 0;
 307 }
 308
 309 static int vidioc_g_frequency(struct file *file, void *priv,
 310         struct v4l2_frequency *f)
 311 {
 312         struct saa7164_vbi_fh *fh = file->private_data;
 313         struct saa7164_port *port = fh->port;
 314
 315         f->type = V4L2_TUNER_ANALOG_TV;
 316         f->frequency = port->freq;
 317
 318         return 0;
 319 }
 320
 321 static int vidioc_s_frequency(struct file *file, void *priv,
 322         const struct v4l2_frequency *f)
 323 {
 324         struct saa7164_vbi_fh *fh = file->private_data;
 325         struct saa7164_port *port = fh->port;
 326         struct saa7164_dev *dev = port->dev;
 327         struct saa7164_port *tsport;
 328         struct dvb_frontend *fe;
 329
 330         /* TODO: Pull this for the std */
 331         struct analog_parameters params = {
 332                 .mode      = V4L2_TUNER_ANALOG_TV,
 333                 .audmode   = V4L2_TUNER_MODE_STEREO,
 334                 .std       = port->encodernorm.id,
 335                 .frequency = f->frequency
 336         };
 337
 338         /* Stop the encoder */
 339         dprintk(DBGLVL_VBI, "%s() frequency=%d tuner=%d\n", __func__,
 340                 f->frequency, f->tuner);
 341
 342         if (f->tuner != 0)
 343                 return -EINVAL;
 344
 345         if (f->type != V4L2_TUNER_ANALOG_TV)
 346                 return -EINVAL;
 347
 348         port->freq = f->frequency;
 349
 350         /* Update the hardware */
 351         if (port->nr == SAA7164_PORT_VBI1)
 352                 tsport = &dev->ports[SAA7164_PORT_TS1];
 353         else
 354         if (port->nr == SAA7164_PORT_VBI2)
 355                 tsport = &dev->ports[SAA7164_PORT_TS2];
 356         else
 357                 BUG();
 358
 359         fe = tsport->dvb.frontend;
 360
 361         if (fe && fe->ops.tuner_ops.set_analog_params)
 362                 fe->ops.tuner_ops.set_analog_params(fe, &params);
 363         else
 364                 printk(KERN_ERR "%s() No analog tuner, aborting\n", __func__);
 365
 366         saa7164_vbi_initialize(port);
 367
 368         return 0;
 369 }
 370
 371 static int vidioc_g_ctrl(struct file *file, void *priv,
 372         struct v4l2_control *ctl)
 373 {
 374         struct saa7164_vbi_fh *fh = file->private_data;
 375         struct saa7164_port *port = fh->port;
 376         struct saa7164_dev *dev = port->dev;
 377
 378         dprintk(DBGLVL_VBI, "%s(id=%d, value=%d)\n", __func__,
 379                 ctl->id, ctl->value);
 380
 381         switch (ctl->id) {
 382         case V4L2_CID_BRIGHTNESS:
 383                 ctl->value = port->ctl_brightness;
 384                 break;
 385         case V4L2_CID_CONTRAST:
 386                 ctl->value = port->ctl_contrast;
 387                 break;
 388         case V4L2_CID_SATURATION:
 389                 ctl->value = port->ctl_saturation;
 390                 break;
 391         case V4L2_CID_HUE:
 392                 ctl->value = port->ctl_hue;
 393                 break;
 394         case V4L2_CID_SHARPNESS:
 395                 ctl->value = port->ctl_sharpness;
 396                 break;
 397         case V4L2_CID_AUDIO_VOLUME:
 398                 ctl->value = port->ctl_volume;
 399                 break;
 400         default:
 401                 return -EINVAL;
 402         }
 403
 404         return 0;
 405 }
 406
 407 static int vidioc_s_ctrl(struct file *file, void *priv,
 408         struct v4l2_control *ctl)
 409 {
 410         struct saa7164_vbi_fh *fh = file->private_data;
 411         struct saa7164_port *port = fh->port;
 412         struct saa7164_dev *dev = port->dev;
 413         int ret = 0;
 414
 415         dprintk(DBGLVL_VBI, "%s(id=%d, value=%d)\n", __func__,
 416                 ctl->id, ctl->value);
 417
 418         switch (ctl->id) {
 419         case V4L2_CID_BRIGHTNESS:
 420                 if ((ctl->value >= 0) && (ctl->value <= 255)) {
 421                         port->ctl_brightness = ctl->value;
 422                         saa7164_api_set_usercontrol(port,
 423                                 PU_BRIGHTNESS_CONTROL);
 424                 } else
 425                         ret = -EINVAL;
 426                 break;
 427         case V4L2_CID_CONTRAST:
 428                 if ((ctl->value >= 0) && (ctl->value <= 255)) {
 429                         port->ctl_contrast = ctl->value;
 430                         saa7164_api_set_usercontrol(port, PU_CONTRAST_CONTROL);
 431                 } else
 432                         ret = -EINVAL;
 433                 break;
 434         case V4L2_CID_SATURATION:
 435                 if ((ctl->value >= 0) && (ctl->value <= 255)) {
 436                         port->ctl_saturation = ctl->value;
 437                         saa7164_api_set_usercontrol(port,
 438                                 PU_SATURATION_CONTROL);
 439                 } else
 440                         ret = -EINVAL;
 441                 break;
 442         case V4L2_CID_HUE:
 443                 if ((ctl->value >= 0) && (ctl->value <= 255)) {
 444                         port->ctl_hue = ctl->value;
 445                         saa7164_api_set_usercontrol(port, PU_HUE_CONTROL);
 446                 } else
 447                         ret = -EINVAL;
 448                 break;
 449         case V4L2_CID_SHARPNESS:
 450                 if ((ctl->value >= 0) && (ctl->value <= 255)) {
 451                         port->ctl_sharpness = ctl->value;
 452                         saa7164_api_set_usercontrol(port, PU_SHARPNESS_CONTROL);
 453                 } else
 454                         ret = -EINVAL;
 455                 break;
 456         case V4L2_CID_AUDIO_VOLUME:
 457                 if ((ctl->value >= -83) && (ctl->value <= 24)) {
 458                         port->ctl_volume = ctl->value;
 459                         saa7164_api_set_audio_volume(port, port->ctl_volume);
 460                 } else
 461                         ret = -EINVAL;
 462                 break;
 463         default:
 464                 ret = -EINVAL;
 465         }
 466
 467         return ret;
 468 }
 469
 470 static int saa7164_get_ctrl(struct saa7164_port *port,
 471         struct v4l2_ext_control *ctrl)
 472 {
 473         struct saa7164_vbi_params *params = &port->vbi_params;
 474
 475         switch (ctrl->id) {
 476         case V4L2_CID_MPEG_STREAM_TYPE:
 477                 ctrl->value = params->stream_type;
 478                 break;
 479         case V4L2_CID_MPEG_AUDIO_MUTE:
 480                 ctrl->value = params->ctl_mute;
 481                 break;
 482         case V4L2_CID_MPEG_VIDEO_ASPECT:
 483                 ctrl->value = params->ctl_aspect;
 484                 break;
 485         case V4L2_CID_MPEG_VIDEO_B_FRAMES:
 486                 ctrl->value = params->refdist;
 487                 break;
 488         case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
 489                 ctrl->value = params->gop_size;
 490                 break;
 491         default:
 492                 return -EINVAL;
 493         }
 494         return 0;
 495 }
 496
 497 static int vidioc_g_ext_ctrls(struct file *file, void *priv,
 498         struct v4l2_ext_controls *ctrls)
 499 {
 500         struct saa7164_vbi_fh *fh = file->private_data;
 501         struct saa7164_port *port = fh->port;
 502         int i, err = 0;
 503
 504         if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
 505                 for (i = 0; i < ctrls->count; i++) {
 506                         struct v4l2_ext_control *ctrl = ctrls->controls + i;
 507
 508                         err = saa7164_get_ctrl(port, ctrl);
 509                         if (err) {
 510                                 ctrls->error_idx = i;
 511                                 break;
 512                         }
 513                 }
 514                 return err;
 515
 516         }
 517
 518         return -EINVAL;
 519 }
 520
 521 static int saa7164_try_ctrl(struct v4l2_ext_control *ctrl, int ac3)
 522 {
 523         int ret = -EINVAL;
 524
 525         switch (ctrl->id) {
 526         case V4L2_CID_MPEG_STREAM_TYPE:
 527                 if ((ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_PS) ||
 528                         (ctrl->value == V4L2_MPEG_STREAM_TYPE_MPEG2_TS))
 529                         ret = 0;
 530                 break;
 531         case V4L2_CID_MPEG_AUDIO_MUTE:
 532                 if ((ctrl->value >= 0) &&
 533                         (ctrl->value <= 1))
 534                         ret = 0;
 535                 break;
 536         case V4L2_CID_MPEG_VIDEO_ASPECT:
 537                 if ((ctrl->value >= V4L2_MPEG_VIDEO_ASPECT_1x1) &&
 538                         (ctrl->value <= V4L2_MPEG_VIDEO_ASPECT_221x100))
 539                         ret = 0;
 540                 break;
 541         case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
 542                 if ((ctrl->value >= 0) &&
 543                         (ctrl->value <= 255))
 544                         ret = 0;
 545                 break;
 546         case V4L2_CID_MPEG_VIDEO_B_FRAMES:
 547                 if ((ctrl->value >= 1) &&
 548                         (ctrl->value <= 3))
 549                         ret = 0;
 550                 break;
 551         default:
 552                 ret = -EINVAL;
 553         }
 554
 555         return ret;
 556 }
 557
 558 static int vidioc_try_ext_ctrls(struct file *file, void *priv,
 559         struct v4l2_ext_controls *ctrls)
 560 {
 561         int i, err = 0;
 562
 563         if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
 564                 for (i = 0; i < ctrls->count; i++) {
 565                         struct v4l2_ext_control *ctrl = ctrls->controls + i;
 566
 567                         err = saa7164_try_ctrl(ctrl, 0);
 568                         if (err) {
 569                                 ctrls->error_idx = i;
 570                                 break;
 571                         }
 572                 }
 573                 return err;
 574         }
 575
 576         return -EINVAL;
 577 }
 578
 579 static int saa7164_set_ctrl(struct saa7164_port *port,
 580         struct v4l2_ext_control *ctrl)
 581 {
 582         struct saa7164_vbi_params *params = &port->vbi_params;
 583         int ret = 0;
 584
 585         switch (ctrl->id) {
 586         case V4L2_CID_MPEG_STREAM_TYPE:
 587                 params->stream_type = ctrl->value;
 588                 break;
 589         case V4L2_CID_MPEG_AUDIO_MUTE:
 590                 params->ctl_mute = ctrl->value;
 591                 ret = saa7164_api_audio_mute(port, params->ctl_mute);
 592                 if (ret != SAA_OK) {
 593                         printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__,
 594                                 ret);
 595                         ret = -EIO;
 596                 }
 597                 break;
 598         case V4L2_CID_MPEG_VIDEO_ASPECT:
 599                 params->ctl_aspect = ctrl->value;
 600                 ret = saa7164_api_set_aspect_ratio(port);
 601                 if (ret != SAA_OK) {
 602                         printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__,
 603                                 ret);
 604                         ret = -EIO;
 605                 }
 606                 break;
 607         case V4L2_CID_MPEG_VIDEO_B_FRAMES:
 608                 params->refdist = ctrl->value;
 609                 break;
 610         case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
 611                 params->gop_size = ctrl->value;
 612                 break;
 613         default:
 614                 return -EINVAL;
 615         }
 616
 617         /* TODO: Update the hardware */
 618
 619         return ret;
 620 }
 621
 622 static int vidioc_s_ext_ctrls(struct file *file, void *priv,
 623         struct v4l2_ext_controls *ctrls)
 624 {
 625         struct saa7164_vbi_fh *fh = file->private_data;
 626         struct saa7164_port *port = fh->port;
 627         int i, err = 0;
 628
 629         if (ctrls->ctrl_class == V4L2_CTRL_CLASS_MPEG) {
 630                 for (i = 0; i < ctrls->count; i++) {
 631                         struct v4l2_ext_control *ctrl = ctrls->controls + i;
 632
 633                         err = saa7164_try_ctrl(ctrl, 0);
 634                         if (err) {
 635                                 ctrls->error_idx = i;
 636                                 break;
 637                         }
 638                         err = saa7164_set_ctrl(port, ctrl);
 639                         if (err) {
 640                                 ctrls->error_idx = i;
 641                                 break;
 642                         }
 643                 }
 644                 return err;
 645
 646         }
 647
 648         return -EINVAL;
 649 }
 650
 651 static int vidioc_querycap(struct file *file, void  *priv,
 652         struct v4l2_capability *cap)
 653 {
 654         struct saa7164_vbi_fh *fh = file->private_data;
 655         struct saa7164_port *port = fh->port;
 656         struct saa7164_dev *dev = port->dev;
 657
 658         strcpy(cap->driver, dev->name);
 659         strlcpy(cap->card, saa7164_boards[dev->board].name,
 660                 sizeof(cap->card));
 661         sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
 662
 663         cap->capabilities =
 664                 V4L2_CAP_VBI_CAPTURE |
 665                 V4L2_CAP_READWRITE     |
 666                 0;
 667
 668         cap->capabilities |= V4L2_CAP_TUNER;
 669         cap->version = 0;
 670
 671         return 0;
 672 }
 673
 674 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
 675         struct v4l2_fmtdesc *f)
 676 {
 677         if (f->index != 0)
 678                 return -EINVAL;
 679
 680         strlcpy(f->description, "VBI", sizeof(f->description));
 681         f->pixelformat = V4L2_PIX_FMT_MPEG;
 682
 683         return 0;
 684 }
 685
 686 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 687                                 struct v4l2_format *f)
 688 {
 689         struct saa7164_vbi_fh *fh = file->private_data;
 690         struct saa7164_port *port = fh->port;
 691         struct saa7164_dev *dev = port->dev;
 692
 693         f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
 694         f->fmt.pix.bytesperline = 0;
 695         f->fmt.pix.sizeimage    =
 696                 port->ts_packet_size * port->ts_packet_count;
 697         f->fmt.pix.colorspace   = 0;
 698         f->fmt.pix.width        = port->width;
 699         f->fmt.pix.height       = port->height;
 700
 701         dprintk(DBGLVL_VBI, "VIDIOC_G_FMT: w: %d, h: %d\n",
 702                 port->width, port->height);
 703
 704         return 0;
 705 }
 706
 707 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 708                                 struct v4l2_format *f)
 709 {
 710         struct saa7164_vbi_fh *fh = file->private_data;
 711         struct saa7164_port *port = fh->port;
 712         struct saa7164_dev *dev = port->dev;
 713
 714         f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
 715         f->fmt.pix.bytesperline = 0;
 716         f->fmt.pix.sizeimage    =
 717                 port->ts_packet_size * port->ts_packet_count;
 718         f->fmt.pix.colorspace   = 0;
 719         dprintk(DBGLVL_VBI, "VIDIOC_TRY_FMT: w: %d, h: %d\n",
 720                 port->width, port->height);
 721         return 0;
 722 }
 723
 724 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 725                                 struct v4l2_format *f)
 726 {
 727         struct saa7164_vbi_fh *fh = file->private_data;
 728         struct saa7164_port *port = fh->port;
 729         struct saa7164_dev *dev = port->dev;
 730
 731         f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
 732         f->fmt.pix.bytesperline = 0;
 733         f->fmt.pix.sizeimage    =
 734                 port->ts_packet_size * port->ts_packet_count;
 735         f->fmt.pix.colorspace   = 0;
 736
 737         dprintk(DBGLVL_VBI, "VIDIOC_S_FMT: w: %d, h: %d, f: %d\n",
 738                 f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.field);
 739
 740         return 0;
 741 }
 742
 743 static int fill_queryctrl(struct saa7164_vbi_params *params,
 744         struct v4l2_queryctrl *c)
 745 {
 746         switch (c->id) {
 747         case V4L2_CID_BRIGHTNESS:
 748                 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 127);
 749         case V4L2_CID_CONTRAST:
 750                 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 66);
 751         case V4L2_CID_SATURATION:
 752                 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 62);
 753         case V4L2_CID_HUE:
 754                 return v4l2_ctrl_query_fill(c, 0x0, 0xff, 1, 128);
 755         case V4L2_CID_SHARPNESS:
 756                 return v4l2_ctrl_query_fill(c, 0x0, 0x0f, 1, 8);
 757         case V4L2_CID_MPEG_AUDIO_MUTE:
 758                 return v4l2_ctrl_query_fill(c, 0x0, 0x01, 1, 0);
 759         case V4L2_CID_AUDIO_VOLUME:
 760                 return v4l2_ctrl_query_fill(c, -83, 24, 1, 20);
 761         case V4L2_CID_MPEG_STREAM_TYPE:
 762                 return v4l2_ctrl_query_fill(c,
 763                         V4L2_MPEG_STREAM_TYPE_MPEG2_PS,
 764                         V4L2_MPEG_STREAM_TYPE_MPEG2_TS,
 765                         1, V4L2_MPEG_STREAM_TYPE_MPEG2_PS);
 766         case V4L2_CID_MPEG_VIDEO_ASPECT:
 767                 return v4l2_ctrl_query_fill(c,
 768                         V4L2_MPEG_VIDEO_ASPECT_1x1,
 769                         V4L2_MPEG_VIDEO_ASPECT_221x100,
 770                         1, V4L2_MPEG_VIDEO_ASPECT_4x3);
 771         case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
 772                 return v4l2_ctrl_query_fill(c, 1, 255, 1, 15);
 773         case V4L2_CID_MPEG_VIDEO_B_FRAMES:
 774                 return v4l2_ctrl_query_fill(c,
 775                         1, 3, 1, 1);
 776         default:
 777                 return -EINVAL;
 778         }
 779 }
 780
 781 static int vidioc_queryctrl(struct file *file, void *priv,
 782         struct v4l2_queryctrl *c)
 783 {
 784         struct saa7164_vbi_fh *fh = priv;
 785         struct saa7164_port *port = fh->port;
 786         int i, next;
 787         u32 id = c->id;
 788
 789         memset(c, 0, sizeof(*c));
 790
 791         next = !!(id & V4L2_CTRL_FLAG_NEXT_CTRL);
 792         c->id = id & ~V4L2_CTRL_FLAG_NEXT_CTRL;
 793
 794         for (i = 0; i < ARRAY_SIZE(saa7164_v4l2_ctrls); i++) {
 795                 if (next) {
 796                         if (c->id < saa7164_v4l2_ctrls[i])
 797                                 c->id = saa7164_v4l2_ctrls[i];
 798                         else
 799                                 continue;
 800                 }
 801
 802                 if (c->id == saa7164_v4l2_ctrls[i])
 803                         return fill_queryctrl(&port->vbi_params, c);
 804
 805                 if (c->id < saa7164_v4l2_ctrls[i])
 806                         break;
 807         }
 808
 809         return -EINVAL;
 810 }
 811
 812 static int saa7164_vbi_stop_port(struct saa7164_port *port)
 813 {
 814         struct saa7164_dev *dev = port->dev;
 815         int ret;
 816
 817         ret = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);
 818         if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
 819                 printk(KERN_ERR "%s() stop transition failed, ret = 0x%x\n",
 820                         __func__, ret);
 821                 ret = -EIO;
 822         } else {
 823                 dprintk(DBGLVL_VBI, "%s()    Stopped\n", __func__);
 824                 ret = 0;
 825         }
 826
 827         return ret;
 828 }
 829
 830 static int saa7164_vbi_acquire_port(struct saa7164_port *port)
 831 {
 832         struct saa7164_dev *dev = port->dev;
 833         int ret;
 834
 835         ret = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);
 836         if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
 837                 printk(KERN_ERR "%s() acquire transition failed, ret = 0x%x\n",
 838                         __func__, ret);
 839                 ret = -EIO;
 840         } else {
 841                 dprintk(DBGLVL_VBI, "%s() Acquired\n", __func__);
 842                 ret = 0;
 843         }
 844
 845         return ret;
 846 }
 847
 848 static int saa7164_vbi_pause_port(struct saa7164_port *port)
 849 {
 850         struct saa7164_dev *dev = port->dev;
 851         int ret;
 852
 853         ret = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);
 854         if ((ret != SAA_OK) && (ret != SAA_ERR_ALREADY_STOPPED)) {
 855                 printk(KERN_ERR "%s() pause transition failed, ret = 0x%x\n",
 856                         __func__, ret);
 857                 ret = -EIO;
 858         } else {
 859                 dprintk(DBGLVL_VBI, "%s()   Paused\n", __func__);
 860                 ret = 0;
 861         }
 862
 863         return ret;
 864 }
 865
 866 /* Firmware is very windows centric, meaning you have to transition
 867  * the part through AVStream / KS Windows stages, forwards or backwards.
 868  * States are: stopped, acquired (h/w), paused, started.
 869  * We have to leave here will all of the soft buffers on the free list,
 870  * else the cfg_post() func won't have soft buffers to correctly configure.
 871  */
 872 static int saa7164_vbi_stop_streaming(struct saa7164_port *port)
 873 {
 874         struct saa7164_dev *dev = port->dev;
 875         struct saa7164_buffer *buf;
 876         struct saa7164_user_buffer *ubuf;
 877         struct list_head *c, *n;
 878         int ret;
 879
 880         dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr);
 881
 882         ret = saa7164_vbi_pause_port(port);
 883         ret = saa7164_vbi_acquire_port(port);
 884         ret = saa7164_vbi_stop_port(port);
 885
 886         dprintk(DBGLVL_VBI, "%s(port=%d) Hardware stopped\n", __func__,
 887                 port->nr);
 888
 889         /* Reset the state of any allocated buffer resources */
 890         mutex_lock(&port->dmaqueue_lock);
 891
 892         /* Reset the hard and soft buffer state */
 893         list_for_each_safe(c, n, &port->dmaqueue.list) {
 894                 buf = list_entry(c, struct saa7164_buffer, list);
 895                 buf->flags = SAA7164_BUFFER_FREE;
 896                 buf->pos = 0;
 897         }
 898
 899         list_for_each_safe(c, n, &port->list_buf_used.list) {
 900                 ubuf = list_entry(c, struct saa7164_user_buffer, list);
 901                 ubuf->pos = 0;
 902                 list_move_tail(&ubuf->list, &port->list_buf_free.list);
 903         }
 904
 905         mutex_unlock(&port->dmaqueue_lock);
 906
 907         /* Free any allocated resources */
 908         saa7164_vbi_buffers_dealloc(port);
 909
 910         dprintk(DBGLVL_VBI, "%s(port=%d) Released\n", __func__, port->nr);
 911
 912         return ret;
 913 }
 914
 915 static int saa7164_vbi_start_streaming(struct saa7164_port *port)
 916 {
 917         struct saa7164_dev *dev = port->dev;
 918         int result, ret = 0;
 919
 920         dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr);
 921
 922         port->done_first_interrupt = 0;
 923
 924         /* allocate all of the PCIe DMA buffer resources on the fly,
 925          * allowing switching between TS and PS payloads without
 926          * requiring a complete driver reload.
 927          */
 928         saa7164_vbi_buffers_alloc(port);
 929
 930         /* Configure the encoder with any cache values */
 931 #if 0
 932         saa7164_api_set_encoder(port);
 933         saa7164_api_get_encoder(port);
 934 #endif
 935
 936         /* Place the empty buffers on the hardware */
 937         saa7164_buffer_cfg_port(port);
 938
 939         /* Negotiate format */
 940         if (saa7164_api_set_vbi_format(port) != SAA_OK) {
 941                 printk(KERN_ERR "%s() No supported VBI format\n", __func__);
 942                 ret = -EIO;
 943                 goto out;
 944         }
 945
 946         /* Acquire the hardware */
 947         result = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);
 948         if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 949                 printk(KERN_ERR "%s() acquire transition failed, res = 0x%x\n",
 950                         __func__, result);
 951
 952                 ret = -EIO;
 953                 goto out;
 954         } else
 955                 dprintk(DBGLVL_VBI, "%s()   Acquired\n", __func__);
 956
 957         /* Pause the hardware */
 958         result = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);
 959         if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 960                 printk(KERN_ERR "%s() pause transition failed, res = 0x%x\n",
 961                                 __func__, result);
 962
 963                 /* Stop the hardware, regardless */
 964                 result = saa7164_vbi_stop_port(port);
 965                 if (result != SAA_OK) {
 966                         printk(KERN_ERR "%s() pause/forced stop transition "
 967                                 "failed, res = 0x%x\n", __func__, result);
 968                 }
 969
 970                 ret = -EIO;
 971                 goto out;
 972         } else
 973                 dprintk(DBGLVL_VBI, "%s()   Paused\n", __func__);
 974
 975         /* Start the hardware */
 976         result = saa7164_api_transition_port(port, SAA_DMASTATE_RUN);
 977         if ((result != SAA_OK) && (result != SAA_ERR_ALREADY_STOPPED)) {
 978                 printk(KERN_ERR "%s() run transition failed, result = 0x%x\n",
 979                                 __func__, result);
 980
 981                 /* Stop the hardware, regardless */
 982                 result = saa7164_vbi_acquire_port(port);
 983                 result = saa7164_vbi_stop_port(port);
 984                 if (result != SAA_OK) {
 985                         printk(KERN_ERR "%s() run/forced stop transition "
 986                                 "failed, res = 0x%x\n", __func__, result);
 987                 }
 988
 989                 ret = -EIO;
 990         } else
 991                 dprintk(DBGLVL_VBI, "%s()   Running\n", __func__);
 992
 993 out:
 994         return ret;
 995 }
 996
 997 static int saa7164_vbi_fmt(struct file *file, void *priv,
 998                            struct v4l2_format *f)
 999 {
1000         /* ntsc */
1001         f->fmt.vbi.samples_per_line = 1600;
1002         f->fmt.vbi.samples_per_line = 1440;
1003         f->fmt.vbi.sampling_rate = 27000000;
1004         f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1005         f->fmt.vbi.offset = 0;
1006         f->fmt.vbi.flags = 0;
1007         f->fmt.vbi.start[0] = 10;
1008         f->fmt.vbi.count[0] = 18;
1009         f->fmt.vbi.start[1] = 263 + 10 + 1;
1010         f->fmt.vbi.count[1] = 18;
1011         return 0;
1012 }
1013
1014 static int fops_open(struct file *file)
1015 {
1016         struct saa7164_dev *dev;
1017         struct saa7164_port *port;
1018         struct saa7164_vbi_fh *fh;
1019
1020         port = (struct saa7164_port *)video_get_drvdata(video_devdata(file));
1021         if (!port)
1022                 return -ENODEV;
1023
1024         dev = port->dev;
1025
1026         dprintk(DBGLVL_VBI, "%s()\n", __func__);
1027
1028         /* allocate + initialize per filehandle data */
1029         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
1030         if (NULL == fh)
1031                 return -ENOMEM;
1032
1033         file->private_data = fh;
1034         fh->port = port;
1035
1036         return 0;
1037 }
1038
1039 static int fops_release(struct file *file)
1040 {
1041         struct saa7164_vbi_fh *fh = file->private_data;
1042         struct saa7164_port *port = fh->port;
1043         struct saa7164_dev *dev = port->dev;
1044
1045         dprintk(DBGLVL_VBI, "%s()\n", __func__);
1046
1047         /* Shut device down on last close */
1048         if (atomic_cmpxchg(&fh->v4l_reading, 1, 0) == 1) {
1049                 if (atomic_dec_return(&port->v4l_reader_count) == 0) {
1050                         /* stop vbi capture then cancel buffers */
1051                         saa7164_vbi_stop_streaming(port);
1052                 }
1053         }
1054
1055         file->private_data = NULL;
1056         kfree(fh);
1057
1058         return 0;
1059 }
1060
1061 static struct
1062 saa7164_user_buffer *saa7164_vbi_next_buf(struct saa7164_port *port)
1063 {
1064         struct saa7164_user_buffer *ubuf = NULL;
1065         struct saa7164_dev *dev = port->dev;
1066         u32 crc;
1067
1068         mutex_lock(&port->dmaqueue_lock);
1069         if (!list_empty(&port->list_buf_used.list)) {
1070                 ubuf = list_first_entry(&port->list_buf_used.list,
1071                         struct saa7164_user_buffer, list);
1072
1073                 if (crc_checking) {
1074                         crc = crc32(0, ubuf->data, ubuf->actual_size);
1075                         if (crc != ubuf->crc) {
1076                                 printk(KERN_ERR "%s() ubuf %p crc became invalid, was 0x%x became 0x%x\n",
1077                                         __func__,
1078                                         ubuf, ubuf->crc, crc);
1079                         }
1080                 }
1081
1082         }
1083         mutex_unlock(&port->dmaqueue_lock);
1084
1085         dprintk(DBGLVL_VBI, "%s() returns %p\n", __func__, ubuf);
1086
1087         return ubuf;
1088 }
1089
1090 static ssize_t fops_read(struct file *file, char __user *buffer,
1091         size_t count, loff_t *pos)
1092 {
1093         struct saa7164_vbi_fh *fh = file->private_data;
1094         struct saa7164_port *port = fh->port;
1095         struct saa7164_user_buffer *ubuf = NULL;
1096         struct saa7164_dev *dev = port->dev;
1097         int ret = 0;
1098         int rem, cnt;
1099         u8 *p;
1100
1101         port->last_read_msecs_diff = port->last_read_msecs;
1102         port->last_read_msecs = jiffies_to_msecs(jiffies);
1103         port->last_read_msecs_diff = port->last_read_msecs -
1104                 port->last_read_msecs_diff;
1105
1106         saa7164_histogram_update(&port->read_interval,
1107                 port->last_read_msecs_diff);
1108
1109         if (*pos) {
1110                 printk(KERN_ERR "%s() ESPIPE\n", __func__);
1111                 return -ESPIPE;
1112         }
1113
1114         if (atomic_cmpxchg(&fh->v4l_reading, 0, 1) == 0) {
1115                 if (atomic_inc_return(&port->v4l_reader_count) == 1) {
1116
1117                         if (saa7164_vbi_initialize(port) < 0) {
1118                                 printk(KERN_ERR "%s() EINVAL\n", __func__);
1119                                 return -EINVAL;
1120                         }
1121
1122                         saa7164_vbi_start_streaming(port);
1123                         msleep(200);
1124                 }
1125         }
1126
1127         /* blocking wait for buffer */
1128         if ((file->f_flags & O_NONBLOCK) == 0) {
1129                 if (wait_event_interruptible(port->wait_read,
1130                         saa7164_vbi_next_buf(port))) {
1131                                 printk(KERN_ERR "%s() ERESTARTSYS\n", __func__);
1132                                 return -ERESTARTSYS;
1133                 }
1134         }
1135
1136         /* Pull the first buffer from the used list */
1137         ubuf = saa7164_vbi_next_buf(port);
1138
1139         while ((count > 0) && ubuf) {
1140
1141                 /* set remaining bytes to copy */
1142                 rem = ubuf->actual_size - ubuf->pos;
1143                 cnt = rem > count ? count : rem;
1144
1145                 p = ubuf->data + ubuf->pos;
1146
1147                 dprintk(DBGLVL_VBI,
1148                         "%s() count=%d cnt=%d rem=%d buf=%p buf->pos=%d\n",
1149                         __func__, (int)count, cnt, rem, ubuf, ubuf->pos);
1150
1151                 if (copy_to_user(buffer, p, cnt)) {
1152                         printk(KERN_ERR "%s() copy_to_user failed\n", __func__);
1153                         if (!ret) {
1154                                 printk(KERN_ERR "%s() EFAULT\n", __func__);
1155                                 ret = -EFAULT;
1156                         }
1157                         goto err;
1158                 }
1159
1160                 ubuf->pos += cnt;
1161                 count -= cnt;
1162                 buffer += cnt;
1163                 ret += cnt;
1164
1165                 if (ubuf->pos > ubuf->actual_size)
1166                         printk(KERN_ERR "read() pos > actual, huh?\n");
1167
1168                 if (ubuf->pos == ubuf->actual_size) {
1169
1170                         /* finished with current buffer, take next buffer */
1171
1172                         /* Requeue the buffer on the free list */
1173                         ubuf->pos = 0;
1174
1175                         mutex_lock(&port->dmaqueue_lock);
1176                         list_move_tail(&ubuf->list, &port->list_buf_free.list);
1177                         mutex_unlock(&port->dmaqueue_lock);
1178
1179                         /* Dequeue next */
1180                         if ((file->f_flags & O_NONBLOCK) == 0) {
1181                                 if (wait_event_interruptible(port->wait_read,
1182                                         saa7164_vbi_next_buf(port))) {
1183                                                 break;
1184                                 }
1185                         }
1186                         ubuf = saa7164_vbi_next_buf(port);
1187                 }
1188         }
1189 err:
1190         if (!ret && !ubuf) {
1191                 printk(KERN_ERR "%s() EAGAIN\n", __func__);
1192                 ret = -EAGAIN;
1193         }
1194
1195         return ret;
1196 }
1197
1198 static unsigned int fops_poll(struct file *file, poll_table *wait)
1199 {
1200         struct saa7164_vbi_fh *fh = (struct saa7164_vbi_fh *)file->private_data;
1201         struct saa7164_port *port = fh->port;
1202         unsigned int mask = 0;
1203
1204         port->last_poll_msecs_diff = port->last_poll_msecs;
1205         port->last_poll_msecs = jiffies_to_msecs(jiffies);
1206         port->last_poll_msecs_diff = port->last_poll_msecs -
1207                 port->last_poll_msecs_diff;
1208
1209         saa7164_histogram_update(&port->poll_interval,
1210                 port->last_poll_msecs_diff);
1211
1212         if (!video_is_registered(port->v4l_device))
1213                 return -EIO;
1214
1215         if (atomic_cmpxchg(&fh->v4l_reading, 0, 1) == 0) {
1216                 if (atomic_inc_return(&port->v4l_reader_count) == 1) {
1217                         if (saa7164_vbi_initialize(port) < 0)
1218                                 return -EINVAL;
1219                         saa7164_vbi_start_streaming(port);
1220                         msleep(200);
1221                 }
1222         }
1223
1224         /* blocking wait for buffer */
1225         if ((file->f_flags & O_NONBLOCK) == 0) {
1226                 if (wait_event_interruptible(port->wait_read,
1227                         saa7164_vbi_next_buf(port))) {
1228                                 return -ERESTARTSYS;
1229                 }
1230         }
1231
1232         /* Pull the first buffer from the used list */
1233         if (!list_empty(&port->list_buf_used.list))
1234                 mask |= POLLIN | POLLRDNORM;
1235
1236         return mask;
1237 }
1238 static const struct v4l2_file_operations vbi_fops = {
1239         .owner          = THIS_MODULE,
1240         .open           = fops_open,
1241         .release        = fops_release,
1242         .read           = fops_read,
1243         .poll           = fops_poll,
1244         .unlocked_ioctl = video_ioctl2,
1245 };
1246
1247 static const struct v4l2_ioctl_ops vbi_ioctl_ops = {
1248         .vidioc_s_std            = vidioc_s_std,
1249         .vidioc_g_std            = vidioc_g_std,
1250         .vidioc_enum_input       = vidioc_enum_input,
1251         .vidioc_g_input          = vidioc_g_input,
1252         .vidioc_s_input          = vidioc_s_input,
1253         .vidioc_g_tuner          = vidioc_g_tuner,
1254         .vidioc_s_tuner          = vidioc_s_tuner,
1255         .vidioc_g_frequency      = vidioc_g_frequency,
1256         .vidioc_s_frequency      = vidioc_s_frequency,
1257         .vidioc_s_ctrl           = vidioc_s_ctrl,
1258         .vidioc_g_ctrl           = vidioc_g_ctrl,
1259         .vidioc_querycap         = vidioc_querycap,
1260         .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1261         .vidioc_g_fmt_vid_cap    = vidioc_g_fmt_vid_cap,
1262         .vidioc_try_fmt_vid_cap  = vidioc_try_fmt_vid_cap,
1263         .vidioc_s_fmt_vid_cap    = vidioc_s_fmt_vid_cap,
1264         .vidioc_g_ext_ctrls      = vidioc_g_ext_ctrls,
1265         .vidioc_s_ext_ctrls      = vidioc_s_ext_ctrls,
1266         .vidioc_try_ext_ctrls    = vidioc_try_ext_ctrls,
1267         .vidioc_queryctrl        = vidioc_queryctrl,
1268         .vidioc_g_fmt_vbi_cap    = saa7164_vbi_fmt,
1269         .vidioc_try_fmt_vbi_cap  = saa7164_vbi_fmt,
1270         .vidioc_s_fmt_vbi_cap    = saa7164_vbi_fmt,
1271 };
1272
1273 static struct video_device saa7164_vbi_template = {
1274         .name          = "saa7164",
1275         .fops          = &vbi_fops,
1276         .ioctl_ops     = &vbi_ioctl_ops,
1277         .minor         = -1,
1278         .tvnorms       = SAA7164_NORMS,
1279 };
1280
1281 static struct video_device *saa7164_vbi_alloc(
1282         struct saa7164_port *port,
1283         struct pci_dev *pci,
1284         struct video_device *template,
1285         char *type)
1286 {
1287         struct video_device *vfd;
1288         struct saa7164_dev *dev = port->dev;
1289
1290         dprintk(DBGLVL_VBI, "%s()\n", __func__);
1291
1292         vfd = video_device_alloc();
1293         if (NULL == vfd)
1294                 return NULL;
1295
1296         *vfd = *template;
1297         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name,
1298                 type, saa7164_boards[dev->board].name);
1299
1300         vfd->v4l2_dev  = &dev->v4l2_dev;
1301         vfd->release = video_device_release;
1302         return vfd;
1303 }
1304
1305 int saa7164_vbi_register(struct saa7164_port *port)
1306 {
1307         struct saa7164_dev *dev = port->dev;
1308         int result = -ENODEV;
1309
1310         dprintk(DBGLVL_VBI, "%s()\n", __func__);
1311
1312         if (port->type != SAA7164_MPEG_VBI)
1313                 BUG();
1314
1315         /* Sanity check that the PCI configuration space is active */
1316         if (port->hwcfg.BARLocation == 0) {
1317                 printk(KERN_ERR "%s() failed "
1318                        "(errno = %d), NO PCI configuration\n",
1319                         __func__, result);
1320                 result = -ENOMEM;
1321                 goto failed;
1322         }
1323
1324         /* Establish VBI defaults here */
1325
1326         /* Allocate and register the video device node */
1327         port->v4l_device = saa7164_vbi_alloc(port,
1328                 dev->pci, &saa7164_vbi_template, "vbi");
1329
1330         if (!port->v4l_device) {
1331                 printk(KERN_INFO "%s: can't allocate vbi device\n",
1332                         dev->name);
1333                 result = -ENOMEM;
1334                 goto failed;
1335         }
1336
1337         port->std = V4L2_STD_NTSC_M;
1338         video_set_drvdata(port->v4l_device, port);
1339         result = video_register_device(port->v4l_device,
1340                 VFL_TYPE_VBI, -1);
1341         if (result < 0) {
1342                 printk(KERN_INFO "%s: can't register vbi device\n",
1343                         dev->name);
1344                 /* TODO: We're going to leak here if we don't dealloc
1345                  The buffers above. The unreg function can't deal wit it.
1346                 */
1347                 goto failed;
1348         }
1349
1350         printk(KERN_INFO "%s: registered device vbi%d [vbi]\n",
1351                 dev->name, port->v4l_device->num);
1352
1353         /* Configure the hardware defaults */
1354
1355         result = 0;
1356 failed:
1357         return result;
1358 }
1359
1360 void saa7164_vbi_unregister(struct saa7164_port *port)
1361 {
1362         struct saa7164_dev *dev = port->dev;
1363
1364         dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr);
1365
1366         if (port->type != SAA7164_MPEG_VBI)
1367                 BUG();
1368
1369         if (port->v4l_device) {
1370                 if (port->v4l_device->minor != -1)
1371                         video_unregister_device(port->v4l_device);
1372                 else
1373                         video_device_release(port->v4l_device);
1374
1375                 port->v4l_device = NULL;
1376         }
1377
1378 }