err.no Git - linux-2.6/blob - drivers/media/video/bttv-driver.c

   1 /*
   2
   3     bttv - Bt848 frame grabber driver
   4
   5     Copyright (C) 1996,97,98 Ralph  Metzler <rjkm@thp.uni-koeln.de>
   6                            & Marcus Metzler <mocm@thp.uni-koeln.de>
   7     (c) 1999-2002 Gerd Knorr <kraxel@bytesex.org>
   8
   9     some v4l2 code lines are taken from Justin's bttv2 driver which is
  10     (c) 2000 Justin Schoeman <justin@suntiger.ee.up.ac.za>
  11
  12     This program is free software; you can redistribute it and/or modify
  13     it under the terms of the GNU General Public License as published by
  14     the Free Software Foundation; either version 2 of the License, or
  15     (at your option) any later version.
  16
  17     This program is distributed in the hope that it will be useful,
  18     but WITHOUT ANY WARRANTY; without even the implied warranty of
  19     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20     GNU General Public License for more details.
  21
  22     You should have received a copy of the GNU General Public License
  23     along with this program; if not, write to the Free Software
  24     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  25 */
  26
  27 #include <linux/init.h>
  28 #include <linux/module.h>
  29 #include <linux/moduleparam.h>
  30 #include <linux/delay.h>
  31 #include <linux/errno.h>
  32 #include <linux/fs.h>
  33 #include <linux/kernel.h>
  34 #include <linux/sched.h>
  35 #include <linux/interrupt.h>
  36 #include <linux/kdev_t.h>
  37 #include <linux/dma-mapping.h>
  38
  39 #include <asm/io.h>
  40 #include <asm/byteorder.h>
  41
  42 #include "bttvp.h"
  43
  44 #include "rds.h"
  45
  46
  47 unsigned int bttv_num;                  /* number of Bt848s in use */
  48 struct bttv bttvs[BTTV_MAX];
  49
  50 unsigned int bttv_debug = 0;
  51 unsigned int bttv_verbose = 1;
  52 unsigned int bttv_gpio = 0;
  53
  54 /* config variables */
  55 #ifdef __BIG_ENDIAN
  56 static unsigned int bigendian=1;
  57 #else
  58 static unsigned int bigendian=0;
  59 #endif
  60 static unsigned int radio[BTTV_MAX];
  61 static unsigned int irq_debug = 0;
  62 static unsigned int gbuffers = 8;
  63 static unsigned int gbufsize = 0x208000;
  64
  65 static int video_nr = -1;
  66 static int radio_nr = -1;
  67 static int vbi_nr = -1;
  68 static int debug_latency = 0;
  69
  70 static unsigned int fdsr = 0;
  71
  72 /* options */
  73 static unsigned int combfilter  = 0;
  74 static unsigned int lumafilter  = 0;
  75 static unsigned int automute    = 1;
  76 static unsigned int chroma_agc  = 0;
  77 static unsigned int adc_crush   = 1;
  78 static unsigned int whitecrush_upper = 0xCF;
  79 static unsigned int whitecrush_lower = 0x7F;
  80 static unsigned int vcr_hack    = 0;
  81 static unsigned int irq_iswitch = 0;
  82 static unsigned int uv_ratio    = 50;
  83 static unsigned int full_luma_range = 0;
  84 static unsigned int coring      = 0;
  85 extern int no_overlay;
  86
  87 /* API features (turn on/off stuff for testing) */
  88 static unsigned int v4l2        = 1;
  89
  90
  91 /* insmod args */
  92 module_param(bttv_verbose,      int, 0644);
  93 module_param(bttv_gpio,         int, 0644);
  94 module_param(bttv_debug,        int, 0644);
  95 module_param(irq_debug,         int, 0644);
  96 module_param(debug_latency,     int, 0644);
  97
  98 module_param(fdsr,              int, 0444);
  99 module_param(video_nr,          int, 0444);
 100 module_param(radio_nr,          int, 0444);
 101 module_param(vbi_nr,            int, 0444);
 102 module_param(gbuffers,          int, 0444);
 103 module_param(gbufsize,          int, 0444);
 104
 105 module_param(v4l2,              int, 0644);
 106 module_param(bigendian,         int, 0644);
 107 module_param(irq_iswitch,       int, 0644);
 108 module_param(combfilter,        int, 0444);
 109 module_param(lumafilter,        int, 0444);
 110 module_param(automute,          int, 0444);
 111 module_param(chroma_agc,        int, 0444);
 112 module_param(adc_crush,         int, 0444);
 113 module_param(whitecrush_upper,  int, 0444);
 114 module_param(whitecrush_lower,  int, 0444);
 115 module_param(vcr_hack,          int, 0444);
 116 module_param(uv_ratio,          int, 0444);
 117 module_param(full_luma_range,   int, 0444);
 118 module_param(coring,            int, 0444);
 119
 120 module_param_array(radio, int, NULL, 0444);
 121
 122 MODULE_PARM_DESC(radio,"The TV card supports radio, default is 0 (no)");
 123 MODULE_PARM_DESC(bigendian,"byte order of the framebuffer, default is native endian");
 124 MODULE_PARM_DESC(bttv_verbose,"verbose startup messages, default is 1 (yes)");
 125 MODULE_PARM_DESC(bttv_gpio,"log gpio changes, default is 0 (no)");
 126 MODULE_PARM_DESC(bttv_debug,"debug messages, default is 0 (no)");
 127 MODULE_PARM_DESC(irq_debug,"irq handler debug messages, default is 0 (no)");
 128 MODULE_PARM_DESC(gbuffers,"number of capture buffers. range 2-32, default 8");
 129 MODULE_PARM_DESC(gbufsize,"size of the capture buffers, default is 0x208000");
 130 MODULE_PARM_DESC(automute,"mute audio on bad/missing video signal, default is 1 (yes)");
 131 MODULE_PARM_DESC(chroma_agc,"enables the AGC of chroma signal, default is 0 (no)");
 132 MODULE_PARM_DESC(adc_crush,"enables the luminance ADC crush, default is 1 (yes)");
 133 MODULE_PARM_DESC(whitecrush_upper,"sets the white crush upper value, default is 207");
 134 MODULE_PARM_DESC(whitecrush_lower,"sets the white crush lower value, default is 127");
 135 MODULE_PARM_DESC(vcr_hack,"enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)");
 136 MODULE_PARM_DESC(irq_iswitch,"switch inputs in irq handler");
 137 MODULE_PARM_DESC(uv_ratio,"ratio between u and v gains, default is 50");
 138 MODULE_PARM_DESC(full_luma_range,"use the full luma range, default is 0 (no)");
 139 MODULE_PARM_DESC(coring,"set the luma coring level, default is 0 (no)");
 140
 141 MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards");
 142 MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
 143 MODULE_LICENSE("GPL");
 144
 145 /* ----------------------------------------------------------------------- */
 146 /* sysfs                                                                   */
 147
 148 static ssize_t show_card(struct class_device *cd, char *buf)
 149 {
 150         struct video_device *vfd = to_video_device(cd);
 151         struct bttv *btv = dev_get_drvdata(vfd->dev);
 152         return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET);
 153 }
 154 static CLASS_DEVICE_ATTR(card, S_IRUGO, show_card, NULL);
 155
 156 /* ----------------------------------------------------------------------- */
 157 /* static data                                                             */
 158
 159 /* special timing tables from conexant... */
 160 static u8 SRAM_Table[][60] =
 161 {
 162         /* PAL digital input over GPIO[7:0] */
 163         {
 164                 45, // 45 bytes following
 165                 0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16,
 166                 0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00,
 167                 0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00,
 168                 0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37,
 169                 0x37,0x00,0xAF,0x21,0x00
 170         },
 171         /* NTSC digital input over GPIO[7:0] */
 172         {
 173                 51, // 51 bytes following
 174                 0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06,
 175                 0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00,
 176                 0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07,
 177                 0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6,
 178                 0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21,
 179                 0x00,
 180         },
 181         // TGB_NTSC392 // quartzsight
 182         // This table has been modified to be used for Fusion Rev D
 183         {
 184                 0x2A, // size of table = 42
 185                 0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24,
 186                 0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10,
 187                 0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00,
 188                 0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3,
 189                 0x20, 0x00
 190         }
 191 };
 192
 193 const struct bttv_tvnorm bttv_tvnorms[] = {
 194         /* PAL-BDGHI */
 195         /* max. active video is actually 922, but 924 is divisible by 4 and 3! */
 196         /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
 197         {
 198                 .v4l2_id        = V4L2_STD_PAL,
 199                 .name           = "PAL",
 200                 .Fsc            = 35468950,
 201                 .swidth         = 924,
 202                 .sheight        = 576,
 203                 .totalwidth     = 1135,
 204                 .adelay         = 0x7f,
 205                 .bdelay         = 0x72,
 206                 .iform          = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
 207                 .scaledtwidth   = 1135,
 208                 .hdelayx1       = 186,
 209                 .hactivex1      = 924,
 210                 .vdelay         = 0x20,
 211                 .vbipack        = 255,
 212                 .sram           = 0,
 213         },{
 214                 .v4l2_id        = V4L2_STD_NTSC_M,
 215                 .name           = "NTSC",
 216                 .Fsc            = 28636363,
 217                 .swidth         = 768,
 218                 .sheight        = 480,
 219                 .totalwidth     = 910,
 220                 .adelay         = 0x68,
 221                 .bdelay         = 0x5d,
 222                 .iform          = (BT848_IFORM_NTSC|BT848_IFORM_XT0),
 223                 .scaledtwidth   = 910,
 224                 .hdelayx1       = 128,
 225                 .hactivex1      = 910,
 226                 .vdelay         = 0x1a,
 227                 .vbipack        = 144,
 228                 .sram           = 1,
 229         },{
 230                 .v4l2_id        = V4L2_STD_SECAM,
 231                 .name           = "SECAM",
 232                 .Fsc            = 35468950,
 233                 .swidth         = 924,
 234                 .sheight        = 576,
 235                 .totalwidth     = 1135,
 236                 .adelay         = 0x7f,
 237                 .bdelay         = 0xb0,
 238                 .iform          = (BT848_IFORM_SECAM|BT848_IFORM_XT1),
 239                 .scaledtwidth   = 1135,
 240                 .hdelayx1       = 186,
 241                 .hactivex1      = 922,
 242                 .vdelay         = 0x20,
 243                 .vbipack        = 255,
 244                 .sram           = 0, /* like PAL, correct? */
 245         },{
 246                 .v4l2_id        = V4L2_STD_PAL_Nc,
 247                 .name           = "PAL-Nc",
 248                 .Fsc            = 28636363,
 249                 .swidth         = 640,
 250                 .sheight        = 576,
 251                 .totalwidth     = 910,
 252                 .adelay         = 0x68,
 253                 .bdelay         = 0x5d,
 254                 .iform          = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0),
 255                 .scaledtwidth   = 780,
 256                 .hdelayx1       = 130,
 257                 .hactivex1      = 734,
 258                 .vdelay         = 0x1a,
 259                 .vbipack        = 144,
 260                 .sram           = -1,
 261         },{
 262                 .v4l2_id        = V4L2_STD_PAL_M,
 263                 .name           = "PAL-M",
 264                 .Fsc            = 28636363,
 265                 .swidth         = 640,
 266                 .sheight        = 480,
 267                 .totalwidth     = 910,
 268                 .adelay         = 0x68,
 269                 .bdelay         = 0x5d,
 270                 .iform          = (BT848_IFORM_PAL_M|BT848_IFORM_XT0),
 271                 .scaledtwidth   = 780,
 272                 .hdelayx1       = 135,
 273                 .hactivex1      = 754,
 274                 .vdelay         = 0x1a,
 275                 .vbipack        = 144,
 276                 .sram           = -1,
 277         },{
 278                 .v4l2_id        = V4L2_STD_PAL_N,
 279                 .name           = "PAL-N",
 280                 .Fsc            = 35468950,
 281                 .swidth         = 768,
 282                 .sheight        = 576,
 283                 .totalwidth     = 1135,
 284                 .adelay         = 0x7f,
 285                 .bdelay         = 0x72,
 286                 .iform          = (BT848_IFORM_PAL_N|BT848_IFORM_XT1),
 287                 .scaledtwidth   = 944,
 288                 .hdelayx1       = 186,
 289                 .hactivex1      = 922,
 290                 .vdelay         = 0x20,
 291                 .vbipack        = 144,
 292                 .sram           = -1,
 293         },{
 294                 .v4l2_id        = V4L2_STD_NTSC_M_JP,
 295                 .name           = "NTSC-JP",
 296                 .Fsc            = 28636363,
 297                 .swidth         = 640,
 298                 .sheight        = 480,
 299                 .totalwidth     = 910,
 300                 .adelay         = 0x68,
 301                 .bdelay         = 0x5d,
 302                 .iform          = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0),
 303                 .scaledtwidth   = 780,
 304                 .hdelayx1       = 135,
 305                 .hactivex1      = 754,
 306                 .vdelay         = 0x16,
 307                 .vbipack        = 144,
 308                 .sram           = -1,
 309         },{
 310                 /* that one hopefully works with the strange timing
 311                  * which video recorders produce when playing a NTSC
 312                  * tape on a PAL TV ... */
 313                 .v4l2_id        = V4L2_STD_PAL_60,
 314                 .name           = "PAL-60",
 315                 .Fsc            = 35468950,
 316                 .swidth         = 924,
 317                 .sheight        = 480,
 318                 .totalwidth     = 1135,
 319                 .adelay         = 0x7f,
 320                 .bdelay         = 0x72,
 321                 .iform          = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
 322                 .scaledtwidth   = 1135,
 323                 .hdelayx1       = 186,
 324                 .hactivex1      = 924,
 325                 .vdelay         = 0x1a,
 326                 .vbipack        = 255,
 327                 .vtotal         = 524,
 328                 .sram           = -1,
 329         }
 330 };
 331 static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms);
 332
 333 /* ----------------------------------------------------------------------- */
 334 /* bttv format list
 335    packed pixel formats must come first */
 336 static const struct bttv_format bttv_formats[] = {
 337         {
 338                 .name     = "8 bpp, gray",
 339                 .palette  = VIDEO_PALETTE_GREY,
 340                 .fourcc   = V4L2_PIX_FMT_GREY,
 341                 .btformat = BT848_COLOR_FMT_Y8,
 342                 .depth    = 8,
 343                 .flags    = FORMAT_FLAGS_PACKED,
 344         },{
 345                 .name     = "8 bpp, dithered color",
 346                 .palette  = VIDEO_PALETTE_HI240,
 347                 .fourcc   = V4L2_PIX_FMT_HI240,
 348                 .btformat = BT848_COLOR_FMT_RGB8,
 349                 .depth    = 8,
 350                 .flags    = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER,
 351         },{
 352                 .name     = "15 bpp RGB, le",
 353                 .palette  = VIDEO_PALETTE_RGB555,
 354                 .fourcc   = V4L2_PIX_FMT_RGB555,
 355                 .btformat = BT848_COLOR_FMT_RGB15,
 356                 .depth    = 16,
 357                 .flags    = FORMAT_FLAGS_PACKED,
 358         },{
 359                 .name     = "15 bpp RGB, be",
 360                 .palette  = -1,
 361                 .fourcc   = V4L2_PIX_FMT_RGB555X,
 362                 .btformat = BT848_COLOR_FMT_RGB15,
 363                 .btswap   = 0x03, /* byteswap */
 364                 .depth    = 16,
 365                 .flags    = FORMAT_FLAGS_PACKED,
 366         },{
 367                 .name     = "16 bpp RGB, le",
 368                 .palette  = VIDEO_PALETTE_RGB565,
 369                 .fourcc   = V4L2_PIX_FMT_RGB565,
 370                 .btformat = BT848_COLOR_FMT_RGB16,
 371                 .depth    = 16,
 372                 .flags    = FORMAT_FLAGS_PACKED,
 373         },{
 374                 .name     = "16 bpp RGB, be",
 375                 .palette  = -1,
 376                 .fourcc   = V4L2_PIX_FMT_RGB565X,
 377                 .btformat = BT848_COLOR_FMT_RGB16,
 378                 .btswap   = 0x03, /* byteswap */
 379                 .depth    = 16,
 380                 .flags    = FORMAT_FLAGS_PACKED,
 381         },{
 382                 .name     = "24 bpp RGB, le",
 383                 .palette  = VIDEO_PALETTE_RGB24,
 384                 .fourcc   = V4L2_PIX_FMT_BGR24,
 385                 .btformat = BT848_COLOR_FMT_RGB24,
 386                 .depth    = 24,
 387                 .flags    = FORMAT_FLAGS_PACKED,
 388         },{
 389                 .name     = "32 bpp RGB, le",
 390                 .palette  = VIDEO_PALETTE_RGB32,
 391                 .fourcc   = V4L2_PIX_FMT_BGR32,
 392                 .btformat = BT848_COLOR_FMT_RGB32,
 393                 .depth    = 32,
 394                 .flags    = FORMAT_FLAGS_PACKED,
 395         },{
 396                 .name     = "32 bpp RGB, be",
 397                 .palette  = -1,
 398                 .fourcc   = V4L2_PIX_FMT_RGB32,
 399                 .btformat = BT848_COLOR_FMT_RGB32,
 400                 .btswap   = 0x0f, /* byte+word swap */
 401                 .depth    = 32,
 402                 .flags    = FORMAT_FLAGS_PACKED,
 403         },{
 404                 .name     = "4:2:2, packed, YUYV",
 405                 .palette  = VIDEO_PALETTE_YUV422,
 406                 .fourcc   = V4L2_PIX_FMT_YUYV,
 407                 .btformat = BT848_COLOR_FMT_YUY2,
 408                 .depth    = 16,
 409                 .flags    = FORMAT_FLAGS_PACKED,
 410         },{
 411                 .name     = "4:2:2, packed, YUYV",
 412                 .palette  = VIDEO_PALETTE_YUYV,
 413                 .fourcc   = V4L2_PIX_FMT_YUYV,
 414                 .btformat = BT848_COLOR_FMT_YUY2,
 415                 .depth    = 16,
 416                 .flags    = FORMAT_FLAGS_PACKED,
 417         },{
 418                 .name     = "4:2:2, packed, UYVY",
 419                 .palette  = VIDEO_PALETTE_UYVY,
 420                 .fourcc   = V4L2_PIX_FMT_UYVY,
 421                 .btformat = BT848_COLOR_FMT_YUY2,
 422                 .btswap   = 0x03, /* byteswap */
 423                 .depth    = 16,
 424                 .flags    = FORMAT_FLAGS_PACKED,
 425         },{
 426                 .name     = "4:2:2, planar, Y-Cb-Cr",
 427                 .palette  = VIDEO_PALETTE_YUV422P,
 428                 .fourcc   = V4L2_PIX_FMT_YUV422P,
 429                 .btformat = BT848_COLOR_FMT_YCrCb422,
 430                 .depth    = 16,
 431                 .flags    = FORMAT_FLAGS_PLANAR,
 432                 .hshift   = 1,
 433                 .vshift   = 0,
 434         },{
 435                 .name     = "4:2:0, planar, Y-Cb-Cr",
 436                 .palette  = VIDEO_PALETTE_YUV420P,
 437                 .fourcc   = V4L2_PIX_FMT_YUV420,
 438                 .btformat = BT848_COLOR_FMT_YCrCb422,
 439                 .depth    = 12,
 440                 .flags    = FORMAT_FLAGS_PLANAR,
 441                 .hshift   = 1,
 442                 .vshift   = 1,
 443         },{
 444                 .name     = "4:2:0, planar, Y-Cr-Cb",
 445                 .palette  = -1,
 446                 .fourcc   = V4L2_PIX_FMT_YVU420,
 447                 .btformat = BT848_COLOR_FMT_YCrCb422,
 448                 .depth    = 12,
 449                 .flags    = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
 450                 .hshift   = 1,
 451                 .vshift   = 1,
 452         },{
 453                 .name     = "4:1:1, planar, Y-Cb-Cr",
 454                 .palette  = VIDEO_PALETTE_YUV411P,
 455                 .fourcc   = V4L2_PIX_FMT_YUV411P,
 456                 .btformat = BT848_COLOR_FMT_YCrCb411,
 457                 .depth    = 12,
 458                 .flags    = FORMAT_FLAGS_PLANAR,
 459                 .hshift   = 2,
 460                 .vshift   = 0,
 461         },{
 462                 .name     = "4:1:0, planar, Y-Cb-Cr",
 463                 .palette  = VIDEO_PALETTE_YUV410P,
 464                 .fourcc   = V4L2_PIX_FMT_YUV410,
 465                 .btformat = BT848_COLOR_FMT_YCrCb411,
 466                 .depth    = 9,
 467                 .flags    = FORMAT_FLAGS_PLANAR,
 468                 .hshift   = 2,
 469                 .vshift   = 2,
 470         },{
 471                 .name     = "4:1:0, planar, Y-Cr-Cb",
 472                 .palette  = -1,
 473                 .fourcc   = V4L2_PIX_FMT_YVU410,
 474                 .btformat = BT848_COLOR_FMT_YCrCb411,
 475                 .depth    = 9,
 476                 .flags    = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
 477                 .hshift   = 2,
 478                 .vshift   = 2,
 479         },{
 480                 .name     = "raw scanlines",
 481                 .palette  = VIDEO_PALETTE_RAW,
 482                 .fourcc   = -1,
 483                 .btformat = BT848_COLOR_FMT_RAW,
 484                 .depth    = 8,
 485                 .flags    = FORMAT_FLAGS_RAW,
 486         }
 487 };
 488 static const unsigned int BTTV_FORMATS = ARRAY_SIZE(bttv_formats);
 489
 490 /* ----------------------------------------------------------------------- */
 491
 492 #define V4L2_CID_PRIVATE_CHROMA_AGC  (V4L2_CID_PRIVATE_BASE + 0)
 493 #define V4L2_CID_PRIVATE_COMBFILTER  (V4L2_CID_PRIVATE_BASE + 1)
 494 #define V4L2_CID_PRIVATE_AUTOMUTE    (V4L2_CID_PRIVATE_BASE + 2)
 495 #define V4L2_CID_PRIVATE_LUMAFILTER  (V4L2_CID_PRIVATE_BASE + 3)
 496 #define V4L2_CID_PRIVATE_AGC_CRUSH   (V4L2_CID_PRIVATE_BASE + 4)
 497 #define V4L2_CID_PRIVATE_VCR_HACK    (V4L2_CID_PRIVATE_BASE + 5)
 498 #define V4L2_CID_PRIVATE_WHITECRUSH_UPPER   (V4L2_CID_PRIVATE_BASE + 6)
 499 #define V4L2_CID_PRIVATE_WHITECRUSH_LOWER   (V4L2_CID_PRIVATE_BASE + 7)
 500 #define V4L2_CID_PRIVATE_UV_RATIO    (V4L2_CID_PRIVATE_BASE + 8)
 501 #define V4L2_CID_PRIVATE_FULL_LUMA_RANGE    (V4L2_CID_PRIVATE_BASE + 9)
 502 #define V4L2_CID_PRIVATE_CORING      (V4L2_CID_PRIVATE_BASE + 10)
 503 #define V4L2_CID_PRIVATE_LASTP1      (V4L2_CID_PRIVATE_BASE + 11)
 504
 505 static const struct v4l2_queryctrl no_ctl = {
 506         .name  = "42",
 507         .flags = V4L2_CTRL_FLAG_DISABLED,
 508 };
 509 static const struct v4l2_queryctrl bttv_ctls[] = {
 510         /* --- video --- */
 511         {
 512                 .id            = V4L2_CID_BRIGHTNESS,
 513                 .name          = "Brightness",
 514                 .minimum       = 0,
 515                 .maximum       = 65535,
 516                 .step          = 256,
 517                 .default_value = 32768,
 518                 .type          = V4L2_CTRL_TYPE_INTEGER,
 519         },{
 520                 .id            = V4L2_CID_CONTRAST,
 521                 .name          = "Contrast",
 522                 .minimum       = 0,
 523                 .maximum       = 65535,
 524                 .step          = 128,
 525                 .default_value = 32768,
 526                 .type          = V4L2_CTRL_TYPE_INTEGER,
 527         },{
 528                 .id            = V4L2_CID_SATURATION,
 529                 .name          = "Saturation",
 530                 .minimum       = 0,
 531                 .maximum       = 65535,
 532                 .step          = 128,
 533                 .default_value = 32768,
 534                 .type          = V4L2_CTRL_TYPE_INTEGER,
 535         },{
 536                 .id            = V4L2_CID_HUE,
 537                 .name          = "Hue",
 538                 .minimum       = 0,
 539                 .maximum       = 65535,
 540                 .step          = 256,
 541                 .default_value = 32768,
 542                 .type          = V4L2_CTRL_TYPE_INTEGER,
 543         },
 544         /* --- audio --- */
 545         {
 546                 .id            = V4L2_CID_AUDIO_MUTE,
 547                 .name          = "Mute",
 548                 .minimum       = 0,
 549                 .maximum       = 1,
 550                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 551         },{
 552                 .id            = V4L2_CID_AUDIO_VOLUME,
 553                 .name          = "Volume",
 554                 .minimum       = 0,
 555                 .maximum       = 65535,
 556                 .step          = 65535/100,
 557                 .default_value = 65535,
 558                 .type          = V4L2_CTRL_TYPE_INTEGER,
 559         },{
 560                 .id            = V4L2_CID_AUDIO_BALANCE,
 561                 .name          = "Balance",
 562                 .minimum       = 0,
 563                 .maximum       = 65535,
 564                 .step          = 65535/100,
 565                 .default_value = 32768,
 566                 .type          = V4L2_CTRL_TYPE_INTEGER,
 567         },{
 568                 .id            = V4L2_CID_AUDIO_BASS,
 569                 .name          = "Bass",
 570                 .minimum       = 0,
 571                 .maximum       = 65535,
 572                 .step          = 65535/100,
 573                 .default_value = 32768,
 574                 .type          = V4L2_CTRL_TYPE_INTEGER,
 575         },{
 576                 .id            = V4L2_CID_AUDIO_TREBLE,
 577                 .name          = "Treble",
 578                 .minimum       = 0,
 579                 .maximum       = 65535,
 580                 .step          = 65535/100,
 581                 .default_value = 32768,
 582                 .type          = V4L2_CTRL_TYPE_INTEGER,
 583         },
 584         /* --- private --- */
 585         {
 586                 .id            = V4L2_CID_PRIVATE_CHROMA_AGC,
 587                 .name          = "chroma agc",
 588                 .minimum       = 0,
 589                 .maximum       = 1,
 590                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 591         },{
 592                 .id            = V4L2_CID_PRIVATE_COMBFILTER,
 593                 .name          = "combfilter",
 594                 .minimum       = 0,
 595                 .maximum       = 1,
 596                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 597         },{
 598                 .id            = V4L2_CID_PRIVATE_AUTOMUTE,
 599                 .name          = "automute",
 600                 .minimum       = 0,
 601                 .maximum       = 1,
 602                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 603         },{
 604                 .id            = V4L2_CID_PRIVATE_LUMAFILTER,
 605                 .name          = "luma decimation filter",
 606                 .minimum       = 0,
 607                 .maximum       = 1,
 608                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 609         },{
 610                 .id            = V4L2_CID_PRIVATE_AGC_CRUSH,
 611                 .name          = "agc crush",
 612                 .minimum       = 0,
 613                 .maximum       = 1,
 614                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 615         },{
 616                 .id            = V4L2_CID_PRIVATE_VCR_HACK,
 617                 .name          = "vcr hack",
 618                 .minimum       = 0,
 619                 .maximum       = 1,
 620                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 621         },{
 622                 .id            = V4L2_CID_PRIVATE_WHITECRUSH_UPPER,
 623                 .name          = "whitecrush upper",
 624                 .minimum       = 0,
 625                 .maximum       = 255,
 626                 .step          = 1,
 627                 .default_value = 0xCF,
 628                 .type          = V4L2_CTRL_TYPE_INTEGER,
 629         },{
 630                 .id            = V4L2_CID_PRIVATE_WHITECRUSH_LOWER,
 631                 .name          = "whitecrush lower",
 632                 .minimum       = 0,
 633                 .maximum       = 255,
 634                 .step          = 1,
 635                 .default_value = 0x7F,
 636                 .type          = V4L2_CTRL_TYPE_INTEGER,
 637         },{
 638                 .id            = V4L2_CID_PRIVATE_UV_RATIO,
 639                 .name          = "uv ratio",
 640                 .minimum       = 0,
 641                 .maximum       = 100,
 642                 .step          = 1,
 643                 .default_value = 50,
 644                 .type          = V4L2_CTRL_TYPE_INTEGER,
 645         },{
 646                 .id            = V4L2_CID_PRIVATE_FULL_LUMA_RANGE,
 647                 .name          = "full luma range",
 648                 .minimum       = 0,
 649                 .maximum       = 1,
 650                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 651         },{
 652                 .id            = V4L2_CID_PRIVATE_CORING,
 653                 .name          = "coring",
 654                 .minimum       = 0,
 655                 .maximum       = 3,
 656                 .step          = 1,
 657                 .default_value = 0,
 658                 .type          = V4L2_CTRL_TYPE_INTEGER,
 659         }
 660
 661
 662
 663 };
 664 static const int BTTV_CTLS = ARRAY_SIZE(bttv_ctls);
 665
 666 /* ----------------------------------------------------------------------- */
 667 /* resource management                                                     */
 668
 669 static
 670 int check_alloc_btres(struct bttv *btv, struct bttv_fh *fh, int bit)
 671 {
 672         if (fh->resources & bit)
 673                 /* have it already allocated */
 674                 return 1;
 675
 676         /* is it free? */
 677         down(&btv->reslock);
 678         if (btv->resources & bit) {
 679                 /* no, someone else uses it */
 680                 up(&btv->reslock);
 681                 return 0;
 682         }
 683         /* it's free, grab it */
 684         fh->resources  |= bit;
 685         btv->resources |= bit;
 686         up(&btv->reslock);
 687         return 1;
 688 }
 689
 690 static
 691 int check_btres(struct bttv_fh *fh, int bit)
 692 {
 693         return (fh->resources & bit);
 694 }
 695
 696 static
 697 int locked_btres(struct bttv *btv, int bit)
 698 {
 699         return (btv->resources & bit);
 700 }
 701
 702 static
 703 void free_btres(struct bttv *btv, struct bttv_fh *fh, int bits)
 704 {
 705         if ((fh->resources & bits) != bits) {
 706                 /* trying to free ressources not allocated by us ... */
 707                 printk("bttv: BUG! (btres)\n");
 708         }
 709         down(&btv->reslock);
 710         fh->resources  &= ~bits;
 711         btv->resources &= ~bits;
 712         up(&btv->reslock);
 713 }
 714
 715 /* ----------------------------------------------------------------------- */
 716 /* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC          */
 717
 718 /* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C
 719    PLL_X = Reference pre-divider (0=1, 1=2)
 720    PLL_C = Post divider (0=6, 1=4)
 721    PLL_I = Integer input
 722    PLL_F = Fractional input
 723
 724    F_input = 28.636363 MHz:
 725    PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0
 726 */
 727
 728 static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout)
 729 {
 730         unsigned char fl, fh, fi;
 731
 732         /* prevent overflows */
 733         fin/=4;
 734         fout/=4;
 735
 736         fout*=12;
 737         fi=fout/fin;
 738
 739         fout=(fout%fin)*256;
 740         fh=fout/fin;
 741
 742         fout=(fout%fin)*256;
 743         fl=fout/fin;
 744
 745         btwrite(fl, BT848_PLL_F_LO);
 746         btwrite(fh, BT848_PLL_F_HI);
 747         btwrite(fi|BT848_PLL_X, BT848_PLL_XCI);
 748 }
 749
 750 static void set_pll(struct bttv *btv)
 751 {
 752         int i;
 753
 754         if (!btv->pll.pll_crystal)
 755                 return;
 756
 757         if (btv->pll.pll_ofreq == btv->pll.pll_current) {
 758                 dprintk("bttv%d: PLL: no change required\n",btv->c.nr);
 759                 return;
 760         }
 761
 762         if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) {
 763                 /* no PLL needed */
 764                 if (btv->pll.pll_current == 0)
 765                         return;
 766                 bttv_printk(KERN_INFO "bttv%d: PLL can sleep, using XTAL (%d).\n",
 767                            btv->c.nr,btv->pll.pll_ifreq);
 768                 btwrite(0x00,BT848_TGCTRL);
 769                 btwrite(0x00,BT848_PLL_XCI);
 770                 btv->pll.pll_current = 0;
 771                 return;
 772         }
 773
 774         bttv_printk(KERN_INFO "bttv%d: PLL: %d => %d ",btv->c.nr,
 775                    btv->pll.pll_ifreq, btv->pll.pll_ofreq);
 776         set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq);
 777
 778         for (i=0; i<10; i++) {
 779                 /*  Let other people run while the PLL stabilizes */
 780                 bttv_printk(".");
 781                 msleep(10);
 782
 783                 if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) {
 784                         btwrite(0,BT848_DSTATUS);
 785                 } else {
 786                         btwrite(0x08,BT848_TGCTRL);
 787                         btv->pll.pll_current = btv->pll.pll_ofreq;
 788                         bttv_printk(" ok\n");
 789                         return;
 790                 }
 791         }
 792         btv->pll.pll_current = -1;
 793         bttv_printk("failed\n");
 794         return;
 795 }
 796
 797 /* used to switch between the bt848's analog/digital video capture modes */
 798 static void bt848A_set_timing(struct bttv *btv)
 799 {
 800         int i, len;
 801         int table_idx = bttv_tvnorms[btv->tvnorm].sram;
 802         int fsc       = bttv_tvnorms[btv->tvnorm].Fsc;
 803
 804         if (UNSET == bttv_tvcards[btv->c.type].muxsel[btv->input]) {
 805                 dprintk("bttv%d: load digital timing table (table_idx=%d)\n",
 806                         btv->c.nr,table_idx);
 807
 808                 /* timing change...reset timing generator address */
 809                 btwrite(0x00, BT848_TGCTRL);
 810                 btwrite(0x02, BT848_TGCTRL);
 811                 btwrite(0x00, BT848_TGCTRL);
 812
 813                 len=SRAM_Table[table_idx][0];
 814                 for(i = 1; i <= len; i++)
 815                         btwrite(SRAM_Table[table_idx][i],BT848_TGLB);
 816                 btv->pll.pll_ofreq = 27000000;
 817
 818                 set_pll(btv);
 819                 btwrite(0x11, BT848_TGCTRL);
 820                 btwrite(0x41, BT848_DVSIF);
 821         } else {
 822                 btv->pll.pll_ofreq = fsc;
 823                 set_pll(btv);
 824                 btwrite(0x0, BT848_DVSIF);
 825         }
 826 }
 827
 828 /* ----------------------------------------------------------------------- */
 829
 830 static void bt848_bright(struct bttv *btv, int bright)
 831 {
 832         int value;
 833
 834         // printk("bttv: set bright: %d\n",bright); // DEBUG
 835         btv->bright = bright;
 836
 837         /* We want -128 to 127 we get 0-65535 */
 838         value = (bright >> 8) - 128;
 839         btwrite(value & 0xff, BT848_BRIGHT);
 840 }
 841
 842 static void bt848_hue(struct bttv *btv, int hue)
 843 {
 844         int value;
 845
 846         btv->hue = hue;
 847
 848         /* -128 to 127 */
 849         value = (hue >> 8) - 128;
 850         btwrite(value & 0xff, BT848_HUE);
 851 }
 852
 853 static void bt848_contrast(struct bttv *btv, int cont)
 854 {
 855         int value,hibit;
 856
 857         btv->contrast = cont;
 858
 859         /* 0-511 */
 860         value = (cont  >> 7);
 861         hibit = (value >> 6) & 4;
 862         btwrite(value & 0xff, BT848_CONTRAST_LO);
 863         btaor(hibit, ~4, BT848_E_CONTROL);
 864         btaor(hibit, ~4, BT848_O_CONTROL);
 865 }
 866
 867 static void bt848_sat(struct bttv *btv, int color)
 868 {
 869         int val_u,val_v,hibits;
 870
 871         btv->saturation = color;
 872
 873         /* 0-511 for the color */
 874         val_u   = ((color * btv->opt_uv_ratio) / 50) >> 7;
 875         val_v   = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254;
 876         hibits  = (val_u >> 7) & 2;
 877         hibits |= (val_v >> 8) & 1;
 878         btwrite(val_u & 0xff, BT848_SAT_U_LO);
 879         btwrite(val_v & 0xff, BT848_SAT_V_LO);
 880         btaor(hibits, ~3, BT848_E_CONTROL);
 881         btaor(hibits, ~3, BT848_O_CONTROL);
 882 }
 883
 884 /* ----------------------------------------------------------------------- */
 885
 886 static int
 887 video_mux(struct bttv *btv, unsigned int input)
 888 {
 889         int mux,mask2;
 890
 891         if (input >= bttv_tvcards[btv->c.type].video_inputs)
 892                 return -EINVAL;
 893
 894         /* needed by RemoteVideo MX */
 895         mask2 = bttv_tvcards[btv->c.type].gpiomask2;
 896         if (mask2)
 897                 gpio_inout(mask2,mask2);
 898
 899         if (input == btv->svhs)  {
 900                 btor(BT848_CONTROL_COMP, BT848_E_CONTROL);
 901                 btor(BT848_CONTROL_COMP, BT848_O_CONTROL);
 902         } else {
 903                 btand(~BT848_CONTROL_COMP, BT848_E_CONTROL);
 904                 btand(~BT848_CONTROL_COMP, BT848_O_CONTROL);
 905         }
 906         mux = bttv_tvcards[btv->c.type].muxsel[input] & 3;
 907         btaor(mux<<5, ~(3<<5), BT848_IFORM);
 908         dprintk(KERN_DEBUG "bttv%d: video mux: input=%d mux=%d\n",
 909                 btv->c.nr,input,mux);
 910
 911         /* card specific hook */
 912         if(bttv_tvcards[btv->c.type].muxsel_hook)
 913                 bttv_tvcards[btv->c.type].muxsel_hook (btv, input);
 914         return 0;
 915 }
 916
 917 static char *audio_modes[] = {
 918         "audio: tuner", "audio: radio", "audio: extern",
 919         "audio: intern", "audio: off"
 920 };
 921
 922 static int
 923 audio_mux(struct bttv *btv, int mode)
 924 {
 925         int val,mux,i2c_mux,signal;
 926
 927         gpio_inout(bttv_tvcards[btv->c.type].gpiomask,
 928                    bttv_tvcards[btv->c.type].gpiomask);
 929         signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC;
 930
 931         switch (mode) {
 932         case AUDIO_MUTE:
 933                 btv->audio |= AUDIO_MUTE;
 934                 break;
 935         case AUDIO_UNMUTE:
 936                 btv->audio &= ~AUDIO_MUTE;
 937                 break;
 938         case AUDIO_TUNER:
 939         case AUDIO_RADIO:
 940         case AUDIO_EXTERN:
 941         case AUDIO_INTERN:
 942                 btv->audio &= AUDIO_MUTE;
 943                 btv->audio |= mode;
 944         }
 945         i2c_mux = mux = (btv->audio & AUDIO_MUTE) ? AUDIO_OFF : btv->audio;
 946         if (btv->opt_automute && !signal && !btv->radio_user)
 947                 mux = AUDIO_OFF;
 948
 949         val = bttv_tvcards[btv->c.type].audiomux[mux];
 950         gpio_bits(bttv_tvcards[btv->c.type].gpiomask,val);
 951         if (bttv_gpio)
 952                 bttv_gpio_tracking(btv,audio_modes[mux]);
 953         if (!in_interrupt())
 954                 bttv_call_i2c_clients(btv,AUDC_SET_INPUT,&(i2c_mux));
 955         return 0;
 956 }
 957
 958 static void
 959 i2c_vidiocschan(struct bttv *btv)
 960 {
 961         struct video_channel c;
 962
 963         memset(&c,0,sizeof(c));
 964         c.norm    = btv->tvnorm;
 965         c.channel = btv->input;
 966         bttv_call_i2c_clients(btv,VIDIOCSCHAN,&c);
 967         if (btv->c.type == BTTV_BOARD_VOODOOTV_FM)
 968                 bttv_tda9880_setnorm(btv,c.norm);
 969 }
 970
 971 static int
 972 set_tvnorm(struct bttv *btv, unsigned int norm)
 973 {
 974         const struct bttv_tvnorm *tvnorm;
 975
 976         if (norm < 0 || norm >= BTTV_TVNORMS)
 977                 return -EINVAL;
 978
 979         btv->tvnorm = norm;
 980         tvnorm = &bttv_tvnorms[norm];
 981
 982         btwrite(tvnorm->adelay, BT848_ADELAY);
 983         btwrite(tvnorm->bdelay, BT848_BDELAY);
 984         btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH),
 985               BT848_IFORM);
 986         btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE);
 987         btwrite(1, BT848_VBI_PACK_DEL);
 988         bt848A_set_timing(btv);
 989
 990         switch (btv->c.type) {
 991         case BTTV_BOARD_VOODOOTV_FM:
 992                 bttv_tda9880_setnorm(btv,norm);
 993                 break;
 994         }
 995         return 0;
 996 }
 997
 998 static void
 999 set_input(struct bttv *btv, unsigned int input)
1000 {
1001         unsigned long flags;
1002
1003         btv->input = input;
1004         if (irq_iswitch) {
1005                 spin_lock_irqsave(&btv->s_lock,flags);
1006                 if (btv->curr.frame_irq) {
1007                         /* active capture -> delayed input switch */
1008                         btv->new_input = input;
1009                 } else {
1010                         video_mux(btv,input);
1011                 }
1012                 spin_unlock_irqrestore(&btv->s_lock,flags);
1013         } else {
1014                 video_mux(btv,input);
1015         }
1016         audio_mux(btv,(input == bttv_tvcards[btv->c.type].tuner ?
1017                        AUDIO_TUNER : AUDIO_EXTERN));
1018         set_tvnorm(btv,btv->tvnorm);
1019         i2c_vidiocschan(btv);
1020 }
1021
1022 static void init_irqreg(struct bttv *btv)
1023 {
1024         /* clear status */
1025         btwrite(0xfffffUL, BT848_INT_STAT);
1026
1027         if (bttv_tvcards[btv->c.type].no_video) {
1028                 /* i2c only */
1029                 btwrite(BT848_INT_I2CDONE,
1030                         BT848_INT_MASK);
1031         } else {
1032                 /* full video */
1033                 btwrite((btv->triton1)  |
1034                         (btv->gpioirq ? BT848_INT_GPINT : 0) |
1035                         BT848_INT_SCERR |
1036                         (fdsr ? BT848_INT_FDSR : 0) |
1037                         BT848_INT_RISCI|BT848_INT_OCERR|BT848_INT_VPRES|
1038                         BT848_INT_FMTCHG|BT848_INT_HLOCK|
1039                         BT848_INT_I2CDONE,
1040                         BT848_INT_MASK);
1041         }
1042 }
1043
1044 static void init_bt848(struct bttv *btv)
1045 {
1046         int val;
1047
1048         if (bttv_tvcards[btv->c.type].no_video) {
1049                 /* very basic init only */
1050                 init_irqreg(btv);
1051                 return;
1052         }
1053
1054         btwrite(0x00, BT848_CAP_CTL);
1055         btwrite(BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL);
1056         btwrite(BT848_IFORM_XTAUTO | BT848_IFORM_AUTO, BT848_IFORM);
1057
1058         /* set planar and packed mode trigger points and         */
1059         /* set rising edge of inverted GPINTR pin as irq trigger */
1060         btwrite(BT848_GPIO_DMA_CTL_PKTP_32|
1061                 BT848_GPIO_DMA_CTL_PLTP1_16|
1062                 BT848_GPIO_DMA_CTL_PLTP23_16|
1063                 BT848_GPIO_DMA_CTL_GPINTC|
1064                 BT848_GPIO_DMA_CTL_GPINTI,
1065                 BT848_GPIO_DMA_CTL);
1066
1067         val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1068         btwrite(val, BT848_E_SCLOOP);
1069         btwrite(val, BT848_O_SCLOOP);
1070
1071         btwrite(0x20, BT848_E_VSCALE_HI);
1072         btwrite(0x20, BT848_O_VSCALE_HI);
1073         btwrite(BT848_ADC_RESERVED | (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1074                 BT848_ADC);
1075
1076         btwrite(whitecrush_upper, BT848_WC_UP);
1077         btwrite(whitecrush_lower, BT848_WC_DOWN);
1078
1079         if (btv->opt_lumafilter) {
1080                 btwrite(0, BT848_E_CONTROL);
1081                 btwrite(0, BT848_O_CONTROL);
1082         } else {
1083                 btwrite(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1084                 btwrite(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1085         }
1086
1087         bt848_bright(btv,   btv->bright);
1088         bt848_hue(btv,      btv->hue);
1089         bt848_contrast(btv, btv->contrast);
1090         bt848_sat(btv,      btv->saturation);
1091
1092         /* interrupt */
1093         init_irqreg(btv);
1094 }
1095
1096 static void bttv_reinit_bt848(struct bttv *btv)
1097 {
1098         unsigned long flags;
1099
1100         if (bttv_verbose)
1101                 printk(KERN_INFO "bttv%d: reset, reinitialize\n",btv->c.nr);
1102         spin_lock_irqsave(&btv->s_lock,flags);
1103         btv->errors=0;
1104         bttv_set_dma(btv,0);
1105         spin_unlock_irqrestore(&btv->s_lock,flags);
1106
1107         init_bt848(btv);
1108         btv->pll.pll_current = -1;
1109         set_input(btv,btv->input);
1110 }
1111
1112 static int get_control(struct bttv *btv, struct v4l2_control *c)
1113 {
1114         struct video_audio va;
1115         int i;
1116
1117         for (i = 0; i < BTTV_CTLS; i++)
1118                 if (bttv_ctls[i].id == c->id)
1119                         break;
1120         if (i == BTTV_CTLS)
1121                 return -EINVAL;
1122         if (i >= 4 && i <= 8) {
1123                 memset(&va,0,sizeof(va));
1124                 bttv_call_i2c_clients(btv, VIDIOCGAUDIO, &va);
1125                 if (btv->audio_hook)
1126                         btv->audio_hook(btv,&va,0);
1127         }
1128         switch (c->id) {
1129         case V4L2_CID_BRIGHTNESS:
1130                 c->value = btv->bright;
1131                 break;
1132         case V4L2_CID_HUE:
1133                 c->value = btv->hue;
1134                 break;
1135         case V4L2_CID_CONTRAST:
1136                 c->value = btv->contrast;
1137                 break;
1138         case V4L2_CID_SATURATION:
1139                 c->value = btv->saturation;
1140                 break;
1141
1142         case V4L2_CID_AUDIO_MUTE:
1143                 c->value = (VIDEO_AUDIO_MUTE & va.flags) ? 1 : 0;
1144                 break;
1145         case V4L2_CID_AUDIO_VOLUME:
1146                 c->value = va.volume;
1147                 break;
1148         case V4L2_CID_AUDIO_BALANCE:
1149                 c->value = va.balance;
1150                 break;
1151         case V4L2_CID_AUDIO_BASS:
1152                 c->value = va.bass;
1153                 break;
1154         case V4L2_CID_AUDIO_TREBLE:
1155                 c->value = va.treble;
1156                 break;
1157
1158         case V4L2_CID_PRIVATE_CHROMA_AGC:
1159                 c->value = btv->opt_chroma_agc;
1160                 break;
1161         case V4L2_CID_PRIVATE_COMBFILTER:
1162                 c->value = btv->opt_combfilter;
1163                 break;
1164         case V4L2_CID_PRIVATE_LUMAFILTER:
1165                 c->value = btv->opt_lumafilter;
1166                 break;
1167         case V4L2_CID_PRIVATE_AUTOMUTE:
1168                 c->value = btv->opt_automute;
1169                 break;
1170         case V4L2_CID_PRIVATE_AGC_CRUSH:
1171                 c->value = btv->opt_adc_crush;
1172                 break;
1173         case V4L2_CID_PRIVATE_VCR_HACK:
1174                 c->value = btv->opt_vcr_hack;
1175                 break;
1176         case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1177                 c->value = btv->opt_whitecrush_upper;
1178                 break;
1179         case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1180                 c->value = btv->opt_whitecrush_lower;
1181                 break;
1182         case V4L2_CID_PRIVATE_UV_RATIO:
1183                 c->value = btv->opt_uv_ratio;
1184                 break;
1185         case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1186                 c->value = btv->opt_full_luma_range;
1187                 break;
1188         case V4L2_CID_PRIVATE_CORING:
1189                 c->value = btv->opt_coring;
1190                 break;
1191         default:
1192                 return -EINVAL;
1193         }
1194         return 0;
1195 }
1196
1197 static int set_control(struct bttv *btv, struct v4l2_control *c)
1198 {
1199         struct video_audio va;
1200         int i,val;
1201
1202         for (i = 0; i < BTTV_CTLS; i++)
1203                 if (bttv_ctls[i].id == c->id)
1204                         break;
1205         if (i == BTTV_CTLS)
1206                 return -EINVAL;
1207         if (i >= 4 && i <= 8) {
1208                 memset(&va,0,sizeof(va));
1209                 bttv_call_i2c_clients(btv, VIDIOCGAUDIO, &va);
1210                 if (btv->audio_hook)
1211                         btv->audio_hook(btv,&va,0);
1212         }
1213         switch (c->id) {
1214         case V4L2_CID_BRIGHTNESS:
1215                 bt848_bright(btv,c->value);
1216                 break;
1217         case V4L2_CID_HUE:
1218                 bt848_hue(btv,c->value);
1219                 break;
1220         case V4L2_CID_CONTRAST:
1221                 bt848_contrast(btv,c->value);
1222                 break;
1223         case V4L2_CID_SATURATION:
1224                 bt848_sat(btv,c->value);
1225                 break;
1226         case V4L2_CID_AUDIO_MUTE:
1227                 if (c->value) {
1228                         va.flags |= VIDEO_AUDIO_MUTE;
1229                         audio_mux(btv, AUDIO_MUTE);
1230                 } else {
1231                         va.flags &= ~VIDEO_AUDIO_MUTE;
1232                         audio_mux(btv, AUDIO_UNMUTE);
1233                 }
1234                 break;
1235
1236         case V4L2_CID_AUDIO_VOLUME:
1237                 va.volume = c->value;
1238                 break;
1239         case V4L2_CID_AUDIO_BALANCE:
1240                 va.balance = c->value;
1241                 break;
1242         case V4L2_CID_AUDIO_BASS:
1243                 va.bass = c->value;
1244                 break;
1245         case V4L2_CID_AUDIO_TREBLE:
1246                 va.treble = c->value;
1247                 break;
1248
1249         case V4L2_CID_PRIVATE_CHROMA_AGC:
1250                 btv->opt_chroma_agc = c->value;
1251                 val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1252                 btwrite(val, BT848_E_SCLOOP);
1253                 btwrite(val, BT848_O_SCLOOP);
1254                 break;
1255         case V4L2_CID_PRIVATE_COMBFILTER:
1256                 btv->opt_combfilter = c->value;
1257                 break;
1258         case V4L2_CID_PRIVATE_LUMAFILTER:
1259                 btv->opt_lumafilter = c->value;
1260                 if (btv->opt_lumafilter) {
1261                         btand(~BT848_CONTROL_LDEC, BT848_E_CONTROL);
1262                         btand(~BT848_CONTROL_LDEC, BT848_O_CONTROL);
1263                 } else {
1264                         btor(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1265                         btor(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1266                 }
1267                 break;
1268         case V4L2_CID_PRIVATE_AUTOMUTE:
1269                 btv->opt_automute = c->value;
1270                 break;
1271         case V4L2_CID_PRIVATE_AGC_CRUSH:
1272                 btv->opt_adc_crush = c->value;
1273                 btwrite(BT848_ADC_RESERVED | (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1274                         BT848_ADC);
1275                 break;
1276         case V4L2_CID_PRIVATE_VCR_HACK:
1277                 btv->opt_vcr_hack = c->value;
1278                 break;
1279         case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1280                 btv->opt_whitecrush_upper = c->value;
1281                 btwrite(c->value, BT848_WC_UP);
1282                 break;
1283         case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1284                 btv->opt_whitecrush_lower = c->value;
1285                 btwrite(c->value, BT848_WC_DOWN);
1286                 break;
1287         case V4L2_CID_PRIVATE_UV_RATIO:
1288                 btv->opt_uv_ratio = c->value;
1289                 bt848_sat(btv, btv->saturation);
1290                 break;
1291         case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1292                 btv->opt_full_luma_range = c->value;
1293                 btaor((c->value<<7), ~BT848_OFORM_RANGE, BT848_OFORM);
1294                 break;
1295         case V4L2_CID_PRIVATE_CORING:
1296                 btv->opt_coring = c->value;
1297                 btaor((c->value<<5), ~BT848_OFORM_CORE32, BT848_OFORM);
1298                 break;
1299         default:
1300                 return -EINVAL;
1301         }
1302         if (i >= 4 && i <= 8) {
1303                 bttv_call_i2c_clients(btv, VIDIOCSAUDIO, &va);
1304                 if (btv->audio_hook)
1305                         btv->audio_hook(btv,&va,1);
1306         }
1307         return 0;
1308 }
1309
1310 /* ----------------------------------------------------------------------- */
1311
1312 void bttv_gpio_tracking(struct bttv *btv, char *comment)
1313 {
1314         unsigned int outbits, data;
1315         outbits = btread(BT848_GPIO_OUT_EN);
1316         data    = btread(BT848_GPIO_DATA);
1317         printk(KERN_DEBUG "bttv%d: gpio: en=%08x, out=%08x in=%08x [%s]\n",
1318                btv->c.nr,outbits,data & outbits, data & ~outbits, comment);
1319 }
1320
1321 static void bttv_field_count(struct bttv *btv)
1322 {
1323         int need_count = 0;
1324
1325         if (btv->users)
1326                 need_count++;
1327
1328         if (need_count) {
1329                 /* start field counter */
1330                 btor(BT848_INT_VSYNC,BT848_INT_MASK);
1331         } else {
1332                 /* stop field counter */
1333                 btand(~BT848_INT_VSYNC,BT848_INT_MASK);
1334                 btv->field_count = 0;
1335         }
1336 }
1337
1338 static const struct bttv_format*
1339 format_by_palette(int palette)
1340 {
1341         unsigned int i;
1342
1343         for (i = 0; i < BTTV_FORMATS; i++) {
1344                 if (-1 == bttv_formats[i].palette)
1345                         continue;
1346                 if (bttv_formats[i].palette == palette)
1347                         return bttv_formats+i;
1348         }
1349         return NULL;
1350 }
1351
1352 static const struct bttv_format*
1353 format_by_fourcc(int fourcc)
1354 {
1355         unsigned int i;
1356
1357         for (i = 0; i < BTTV_FORMATS; i++) {
1358                 if (-1 == bttv_formats[i].fourcc)
1359                         continue;
1360                 if (bttv_formats[i].fourcc == fourcc)
1361                         return bttv_formats+i;
1362         }
1363         return NULL;
1364 }
1365
1366 /* ----------------------------------------------------------------------- */
1367 /* misc helpers                                                            */
1368
1369 static int
1370 bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh,
1371                     struct bttv_buffer *new)
1372 {
1373         struct bttv_buffer *old;
1374         unsigned long flags;
1375         int retval = 0;
1376
1377         dprintk("switch_overlay: enter [new=%p]\n",new);
1378         if (new)
1379                 new->vb.state = STATE_DONE;
1380         spin_lock_irqsave(&btv->s_lock,flags);
1381         old = btv->screen;
1382         btv->screen = new;
1383         btv->loop_irq |= 1;
1384         bttv_set_dma(btv, 0x03);
1385         spin_unlock_irqrestore(&btv->s_lock,flags);
1386         if (NULL == new)
1387                 free_btres(btv,fh,RESOURCE_OVERLAY);
1388         if (NULL != old) {
1389                 dprintk("switch_overlay: old=%p state is %d\n",old,old->vb.state);
1390                 bttv_dma_free(btv, old);
1391                 kfree(old);
1392         }
1393         dprintk("switch_overlay: done\n");
1394         return retval;
1395 }
1396
1397 /* ----------------------------------------------------------------------- */
1398 /* video4linux (1) interface                                               */
1399
1400 static int bttv_prepare_buffer(struct bttv *btv, struct bttv_buffer *buf,
1401                                const struct bttv_format *fmt,
1402                                unsigned int width, unsigned int height,
1403                                enum v4l2_field field)
1404 {
1405         int redo_dma_risc = 0;
1406         int rc;
1407
1408         /* check settings */
1409         if (NULL == fmt)
1410                 return -EINVAL;
1411         if (fmt->btformat == BT848_COLOR_FMT_RAW) {
1412                 width  = RAW_BPL;
1413                 height = RAW_LINES*2;
1414                 if (width*height > buf->vb.bsize)
1415                         return -EINVAL;
1416                 buf->vb.size = buf->vb.bsize;
1417         } else {
1418                 if (width  < 48 ||
1419                     height < 32 ||
1420                     width  > bttv_tvnorms[btv->tvnorm].swidth ||
1421                     height > bttv_tvnorms[btv->tvnorm].sheight)
1422                         return -EINVAL;
1423                 buf->vb.size = (width * height * fmt->depth) >> 3;
1424                 if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
1425                         return -EINVAL;
1426         }
1427
1428         /* alloc + fill struct bttv_buffer (if changed) */
1429         if (buf->vb.width != width || buf->vb.height != height ||
1430             buf->vb.field != field ||
1431             buf->tvnorm != btv->tvnorm || buf->fmt != fmt) {
1432                 buf->vb.width  = width;
1433                 buf->vb.height = height;
1434                 buf->vb.field  = field;
1435                 buf->tvnorm    = btv->tvnorm;
1436                 buf->fmt       = fmt;
1437                 redo_dma_risc = 1;
1438         }
1439
1440         /* alloc risc memory */
1441         if (STATE_NEEDS_INIT == buf->vb.state) {
1442                 redo_dma_risc = 1;
1443                 if (0 != (rc = videobuf_iolock(btv->c.pci,&buf->vb,&btv->fbuf)))
1444                         goto fail;
1445         }
1446
1447         if (redo_dma_risc)
1448                 if (0 != (rc = bttv_buffer_risc(btv,buf)))
1449                         goto fail;
1450
1451         buf->vb.state = STATE_PREPARED;
1452         return 0;
1453
1454  fail:
1455         bttv_dma_free(btv,buf);
1456         return rc;
1457 }
1458
1459 static int
1460 buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
1461 {
1462         struct bttv_fh *fh = q->priv_data;
1463
1464         *size = fh->fmt->depth*fh->width*fh->height >> 3;
1465         if (0 == *count)
1466                 *count = gbuffers;
1467         while (*size * *count > gbuffers * gbufsize)
1468                 (*count)--;
1469         return 0;
1470 }
1471
1472 static int
1473 buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
1474                enum v4l2_field field)
1475 {
1476         struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1477         struct bttv_fh *fh = q->priv_data;
1478
1479         return bttv_prepare_buffer(fh->btv, buf, fh->fmt,
1480                                    fh->width, fh->height, field);
1481 }
1482
1483 static void
1484 buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
1485 {
1486         struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1487         struct bttv_fh *fh = q->priv_data;
1488         struct bttv    *btv = fh->btv;
1489
1490         buf->vb.state = STATE_QUEUED;
1491         list_add_tail(&buf->vb.queue,&btv->capture);
1492         if (!btv->curr.frame_irq) {
1493                 btv->loop_irq |= 1;
1494                 bttv_set_dma(btv, 0x03);
1495         }
1496 }
1497
1498 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
1499 {
1500         struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1501         struct bttv_fh *fh = q->priv_data;
1502
1503         bttv_dma_free(fh->btv,buf);
1504 }
1505
1506 static struct videobuf_queue_ops bttv_video_qops = {
1507         .buf_setup    = buffer_setup,
1508         .buf_prepare  = buffer_prepare,
1509         .buf_queue    = buffer_queue,
1510         .buf_release  = buffer_release,
1511 };
1512
1513 static const char *v4l1_ioctls[] = {
1514         "?", "CGAP", "GCHAN", "SCHAN", "GTUNER", "STUNER", "GPICT", "SPICT",
1515         "CCAPTURE", "GWIN", "SWIN", "GFBUF", "SFBUF", "KEY", "GFREQ",
1516         "SFREQ", "GAUDIO", "SAUDIO", "SYNC", "MCAPTURE", "GMBUF", "GUNIT",
1517         "GCAPTURE", "SCAPTURE", "SPLAYMODE", "SWRITEMODE", "GPLAYINFO",
1518         "SMICROCODE", "GVBIFMT", "SVBIFMT" };
1519 #define V4L1_IOCTLS ARRAY_SIZE(v4l1_ioctls)
1520
1521 static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
1522 {
1523         switch (cmd) {
1524         case BTTV_VERSION:
1525                 return BTTV_VERSION_CODE;
1526
1527         /* ***  v4l1  *** ************************************************ */
1528         case VIDIOCGFREQ:
1529         {
1530                 unsigned long *freq = arg;
1531                 *freq = btv->freq;
1532                 return 0;
1533         }
1534         case VIDIOCSFREQ:
1535         {
1536                 unsigned long *freq = arg;
1537                 down(&btv->lock);
1538                 btv->freq=*freq;
1539                 bttv_call_i2c_clients(btv,VIDIOCSFREQ,freq);
1540                 if (btv->has_matchbox && btv->radio_user)
1541                         tea5757_set_freq(btv,*freq);
1542                 up(&btv->lock);
1543                 return 0;
1544         }
1545
1546         case VIDIOCGTUNER:
1547         {
1548                 struct video_tuner *v = arg;
1549
1550                 if (UNSET == bttv_tvcards[btv->c.type].tuner)
1551                         return -EINVAL;
1552                 if (v->tuner) /* Only tuner 0 */
1553                         return -EINVAL;
1554                 strcpy(v->name, "Television");
1555                 v->rangelow  = 0;
1556                 v->rangehigh = 0x7FFFFFFF;
1557                 v->flags     = VIDEO_TUNER_PAL|VIDEO_TUNER_NTSC|VIDEO_TUNER_SECAM;
1558                 v->mode      = btv->tvnorm;
1559                 v->signal    = (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC) ? 0xFFFF : 0;
1560                 bttv_call_i2c_clients(btv,cmd,v);
1561                 return 0;
1562         }
1563         case VIDIOCSTUNER:
1564         {
1565                 struct video_tuner *v = arg;
1566
1567                 if (v->tuner) /* Only tuner 0 */
1568                         return -EINVAL;
1569                 if (v->mode >= BTTV_TVNORMS)
1570                         return -EINVAL;
1571
1572                 down(&btv->lock);
1573                 set_tvnorm(btv,v->mode);
1574                 bttv_call_i2c_clients(btv,cmd,v);
1575                 up(&btv->lock);
1576                 return 0;
1577         }
1578
1579         case VIDIOCGCHAN:
1580         {
1581                 struct video_channel *v = arg;
1582                 unsigned int channel = v->channel;
1583
1584                 if (channel >= bttv_tvcards[btv->c.type].video_inputs)
1585                         return -EINVAL;
1586                 v->tuners=0;
1587                 v->flags = VIDEO_VC_AUDIO;
1588                 v->type = VIDEO_TYPE_CAMERA;
1589                 v->norm = btv->tvnorm;
1590                 if (channel == bttv_tvcards[btv->c.type].tuner)  {
1591                         strcpy(v->name,"Television");
1592                         v->flags|=VIDEO_VC_TUNER;
1593                         v->type=VIDEO_TYPE_TV;
1594                         v->tuners=1;
1595                 } else if (channel == btv->svhs) {
1596                         strcpy(v->name,"S-Video");
1597                 } else {
1598                         sprintf(v->name,"Composite%d",channel);
1599                 }
1600                 return 0;
1601         }
1602         case VIDIOCSCHAN:
1603         {
1604                 struct video_channel *v = arg;
1605                 unsigned int channel = v->channel;
1606
1607                 if (channel >= bttv_tvcards[btv->c.type].video_inputs)
1608                         return -EINVAL;
1609                 if (v->norm >= BTTV_TVNORMS)
1610                         return -EINVAL;
1611
1612                 down(&btv->lock);
1613                 if (channel == btv->input &&
1614                     v->norm == btv->tvnorm) {
1615                         /* nothing to do */
1616                         up(&btv->lock);
1617                         return 0;
1618                 }
1619
1620                 btv->tvnorm = v->norm;
1621                 set_input(btv,v->channel);
1622                 up(&btv->lock);
1623                 return 0;
1624         }
1625
1626         case VIDIOCGAUDIO:
1627         {
1628                 struct video_audio *v = arg;
1629
1630                 memset(v,0,sizeof(*v));
1631                 strcpy(v->name,"Television");
1632                 v->flags |= VIDEO_AUDIO_MUTABLE;
1633                 v->mode  = VIDEO_SOUND_MONO;
1634
1635                 down(&btv->lock);
1636                 bttv_call_i2c_clients(btv,cmd,v);
1637
1638                 /* card specific hooks */
1639                 if (btv->audio_hook)
1640                         btv->audio_hook(btv,v,0);
1641
1642                 up(&btv->lock);
1643                 return 0;
1644         }
1645         case VIDIOCSAUDIO:
1646         {
1647                 struct video_audio *v = arg;
1648                 unsigned int audio = v->audio;
1649
1650                 if (audio >= bttv_tvcards[btv->c.type].audio_inputs)
1651                         return -EINVAL;
1652
1653                 down(&btv->lock);
1654                 audio_mux(btv, (v->flags&VIDEO_AUDIO_MUTE) ? AUDIO_MUTE : AUDIO_UNMUTE);
1655                 bttv_call_i2c_clients(btv,cmd,v);
1656
1657                 /* card specific hooks */
1658                 if (btv->audio_hook)
1659                         btv->audio_hook(btv,v,1);
1660
1661                 up(&btv->lock);
1662                 return 0;
1663         }
1664
1665         /* ***  v4l2  *** ************************************************ */
1666         case VIDIOC_ENUMSTD:
1667         {
1668                 struct v4l2_standard *e = arg;
1669                 unsigned int index = e->index;
1670
1671                 if (index >= BTTV_TVNORMS)
1672                         return -EINVAL;
1673                 v4l2_video_std_construct(e, bttv_tvnorms[e->index].v4l2_id,
1674                                          bttv_tvnorms[e->index].name);
1675                 e->index = index;
1676                 return 0;
1677         }
1678         case VIDIOC_G_STD:
1679         {
1680                 v4l2_std_id *id = arg;
1681                 *id = bttv_tvnorms[btv->tvnorm].v4l2_id;
1682                 return 0;
1683         }
1684         case VIDIOC_S_STD:
1685         {
1686                 v4l2_std_id *id = arg;
1687                 unsigned int i;
1688
1689                 for (i = 0; i < BTTV_TVNORMS; i++)
1690                         if (*id & bttv_tvnorms[i].v4l2_id)
1691                                 break;
1692                 if (i == BTTV_TVNORMS)
1693                         return -EINVAL;
1694
1695                 down(&btv->lock);
1696                 set_tvnorm(btv,i);
1697                 i2c_vidiocschan(btv);
1698                 up(&btv->lock);
1699                 return 0;
1700         }
1701         case VIDIOC_QUERYSTD:
1702         {
1703                 v4l2_std_id *id = arg;
1704
1705                 if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML)
1706                         *id = V4L2_STD_625_50;
1707                 else
1708                         *id = V4L2_STD_525_60;
1709                 return 0;
1710         }
1711
1712         case VIDIOC_ENUMINPUT:
1713         {
1714                 struct v4l2_input *i = arg;
1715                 unsigned int n;
1716
1717                 n = i->index;
1718                 if (n >= bttv_tvcards[btv->c.type].video_inputs)
1719                         return -EINVAL;
1720                 memset(i,0,sizeof(*i));
1721                 i->index    = n;
1722                 i->type     = V4L2_INPUT_TYPE_CAMERA;
1723                 i->audioset = 1;
1724                 if (i->index == bttv_tvcards[btv->c.type].tuner) {
1725                         sprintf(i->name, "Television");
1726                         i->type  = V4L2_INPUT_TYPE_TUNER;
1727                         i->tuner = 0;
1728                 } else if (i->index == btv->svhs) {
1729                         sprintf(i->name, "S-Video");
1730                 } else {
1731                         sprintf(i->name,"Composite%d",i->index);
1732                 }
1733                 if (i->index == btv->input) {
1734                         __u32 dstatus = btread(BT848_DSTATUS);
1735                         if (0 == (dstatus & BT848_DSTATUS_PRES))
1736                                 i->status |= V4L2_IN_ST_NO_SIGNAL;
1737                         if (0 == (dstatus & BT848_DSTATUS_HLOC))
1738                                 i->status |= V4L2_IN_ST_NO_H_LOCK;
1739                 }
1740                 for (n = 0; n < BTTV_TVNORMS; n++)
1741                         i->std |= bttv_tvnorms[n].v4l2_id;
1742                 return 0;
1743         }
1744         case VIDIOC_G_INPUT:
1745         {
1746                 int *i = arg;
1747                 *i = btv->input;
1748                 return 0;
1749         }
1750         case VIDIOC_S_INPUT:
1751         {
1752                 unsigned int *i = arg;
1753
1754                 if (*i > bttv_tvcards[btv->c.type].video_inputs)
1755                         return -EINVAL;
1756                 down(&btv->lock);
1757                 set_input(btv,*i);
1758                 up(&btv->lock);
1759                 return 0;
1760         }
1761
1762         case VIDIOC_G_TUNER:
1763         {
1764                 struct v4l2_tuner *t = arg;
1765
1766                 if (UNSET == bttv_tvcards[btv->c.type].tuner)
1767                         return -EINVAL;
1768                 if (0 != t->index)
1769                         return -EINVAL;
1770                 down(&btv->lock);
1771                 memset(t,0,sizeof(*t));
1772                 strcpy(t->name, "Television");
1773                 t->type       = V4L2_TUNER_ANALOG_TV;
1774                 t->rangehigh  = 0xffffffffUL;
1775                 t->capability = V4L2_TUNER_CAP_NORM;
1776                 t->rxsubchans = V4L2_TUNER_SUB_MONO;
1777                 if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC)
1778                         t->signal = 0xffff;
1779                 {
1780                         /* Hmmm ... */
1781                         struct video_audio va;
1782                         memset(&va, 0, sizeof(struct video_audio));
1783                         bttv_call_i2c_clients(btv, VIDIOCGAUDIO, &va);
1784                         if (btv->audio_hook)
1785                                 btv->audio_hook(btv,&va,0);
1786                         if(va.mode & VIDEO_SOUND_STEREO) {
1787                                 t->audmode     = V4L2_TUNER_MODE_STEREO;
1788                                 t->rxsubchans |= V4L2_TUNER_SUB_STEREO;
1789                         }
1790                         if(va.mode & VIDEO_SOUND_LANG1) {
1791                                 t->audmode    = V4L2_TUNER_MODE_LANG1;
1792                                 t->rxsubchans = V4L2_TUNER_SUB_LANG1
1793                                         | V4L2_TUNER_SUB_LANG2;
1794                         }
1795                 }
1796                 /* FIXME: fill capability+audmode */
1797                 up(&btv->lock);
1798                 return 0;
1799         }
1800         case VIDIOC_S_TUNER:
1801         {
1802                 struct v4l2_tuner *t = arg;
1803
1804                 if (UNSET == bttv_tvcards[btv->c.type].tuner)
1805                         return -EINVAL;
1806                 if (0 != t->index)
1807                         return -EINVAL;
1808                 down(&btv->lock);
1809                 {
1810                         struct video_audio va;
1811                         memset(&va, 0, sizeof(struct video_audio));
1812                         bttv_call_i2c_clients(btv, VIDIOCGAUDIO, &va);
1813                         if (t->audmode == V4L2_TUNER_MODE_MONO)
1814                                 va.mode = VIDEO_SOUND_MONO;
1815                         else if (t->audmode == V4L2_TUNER_MODE_STEREO)
1816                                 va.mode = VIDEO_SOUND_STEREO;
1817                         else if (t->audmode == V4L2_TUNER_MODE_LANG1)
1818                                 va.mode = VIDEO_SOUND_LANG1;
1819                         else if (t->audmode == V4L2_TUNER_MODE_LANG2)
1820                                 va.mode = VIDEO_SOUND_LANG2;
1821                         bttv_call_i2c_clients(btv, VIDIOCSAUDIO, &va);
1822                         if (btv->audio_hook)
1823                                 btv->audio_hook(btv,&va,1);
1824                 }
1825                 up(&btv->lock);
1826                 return 0;
1827         }
1828
1829         case VIDIOC_G_FREQUENCY:
1830         {
1831                 struct v4l2_frequency *f = arg;
1832
1833                 memset(f,0,sizeof(*f));
1834                 f->type = V4L2_TUNER_ANALOG_TV;
1835                 f->frequency = btv->freq;
1836                 return 0;
1837         }
1838         case VIDIOC_S_FREQUENCY:
1839         {
1840                 struct v4l2_frequency *f = arg;
1841
1842                 if (unlikely(f->tuner != 0))
1843                         return -EINVAL;
1844                 if (unlikely (f->type != V4L2_TUNER_ANALOG_TV))
1845                         return -EINVAL;
1846                 down(&btv->lock);
1847                 btv->freq = f->frequency;
1848                 bttv_call_i2c_clients(btv,VIDIOCSFREQ,&btv->freq);
1849                 if (btv->has_matchbox && btv->radio_user)
1850                         tea5757_set_freq(btv,btv->freq);
1851                 up(&btv->lock);
1852                 return 0;
1853         }
1854         case VIDIOC_LOG_STATUS:
1855         {
1856                 bttv_call_i2c_clients(btv, VIDIOC_LOG_STATUS, NULL);
1857                 return 0;
1858         }
1859
1860         default:
1861                 return -ENOIOCTLCMD;
1862
1863         }
1864         return 0;
1865 }
1866
1867 static int verify_window(const struct bttv_tvnorm *tvn,
1868                          struct v4l2_window *win, int fixup)
1869 {
1870         enum v4l2_field field;
1871         int maxw, maxh;
1872
1873         if (win->w.width  < 48 || win->w.height < 32)
1874                 return -EINVAL;
1875         if (win->clipcount > 2048)
1876                 return -EINVAL;
1877
1878         field = win->field;
1879         maxw  = tvn->swidth;
1880         maxh  = tvn->sheight;
1881
1882         if (V4L2_FIELD_ANY == field) {
1883                 field = (win->w.height > maxh/2)
1884                         ? V4L2_FIELD_INTERLACED
1885                         : V4L2_FIELD_TOP;
1886         }
1887         switch (field) {
1888         case V4L2_FIELD_TOP:
1889         case V4L2_FIELD_BOTTOM:
1890                 maxh = maxh / 2;
1891                 break;
1892         case V4L2_FIELD_INTERLACED:
1893                 break;
1894         default:
1895                 return -EINVAL;
1896         }
1897
1898         if (!fixup && (win->w.width > maxw || win->w.height > maxh))
1899                 return -EINVAL;
1900
1901         if (win->w.width > maxw)
1902                 win->w.width = maxw;
1903         if (win->w.height > maxh)
1904                 win->w.height = maxh;
1905         win->field = field;
1906         return 0;
1907 }
1908
1909 static int setup_window(struct bttv_fh *fh, struct bttv *btv,
1910                         struct v4l2_window *win, int fixup)
1911 {
1912         struct v4l2_clip *clips = NULL;
1913         int n,size,retval = 0;
1914
1915         if (NULL == fh->ovfmt)
1916                 return -EINVAL;
1917         if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED))
1918                 return -EINVAL;
1919         retval = verify_window(&bttv_tvnorms[btv->tvnorm],win,fixup);
1920         if (0 != retval)
1921                 return retval;
1922
1923         /* copy clips  --  luckily v4l1 + v4l2 are binary
1924            compatible here ...*/
1925         n = win->clipcount;
1926         size = sizeof(*clips)*(n+4);
1927         clips = kmalloc(size,GFP_KERNEL);
1928         if (NULL == clips)
1929                 return -ENOMEM;
1930         if (n > 0) {
1931                 if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) {
1932                         kfree(clips);
1933                         return -EFAULT;
1934                 }
1935         }
1936         /* clip against screen */
1937         if (NULL != btv->fbuf.base)
1938                 n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height,
1939                                       &win->w, clips, n);
1940         btcx_sort_clips(clips,n);
1941
1942         /* 4-byte alignments */
1943         switch (fh->ovfmt->depth) {
1944         case 8:
1945         case 24:
1946                 btcx_align(&win->w, clips, n, 3);
1947                 break;
1948         case 16:
1949                 btcx_align(&win->w, clips, n, 1);
1950                 break;
1951         case 32:
1952                 /* no alignment fixups needed */
1953                 break;
1954         default:
1955                 BUG();
1956         }
1957
1958         down(&fh->cap.lock);
1959         kfree(fh->ov.clips);
1960         fh->ov.clips    = clips;
1961         fh->ov.nclips   = n;
1962
1963         fh->ov.w        = win->w;
1964         fh->ov.field    = win->field;
1965         fh->ov.setup_ok = 1;
1966         btv->init.ov.w.width   = win->w.width;
1967         btv->init.ov.w.height  = win->w.height;
1968         btv->init.ov.field     = win->field;
1969
1970         /* update overlay if needed */
1971         retval = 0;
1972         if (check_btres(fh, RESOURCE_OVERLAY)) {
1973                 struct bttv_buffer *new;
1974
1975                 new = videobuf_alloc(sizeof(*new));
1976                 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
1977                 retval = bttv_switch_overlay(btv,fh,new);
1978         }
1979         up(&fh->cap.lock);
1980         return retval;
1981 }
1982
1983 /* ----------------------------------------------------------------------- */
1984
1985 static struct videobuf_queue* bttv_queue(struct bttv_fh *fh)
1986 {
1987         struct videobuf_queue* q = NULL;
1988
1989         switch (fh->type) {
1990         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1991                 q = &fh->cap;
1992                 break;
1993         case V4L2_BUF_TYPE_VBI_CAPTURE:
1994                 q = &fh->vbi;
1995                 break;
1996         default:
1997                 BUG();
1998         }
1999         return q;
2000 }
2001
2002 static int bttv_resource(struct bttv_fh *fh)
2003 {
2004         int res = 0;
2005
2006         switch (fh->type) {
2007         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2008                 res = RESOURCE_VIDEO;
2009                 break;
2010         case V4L2_BUF_TYPE_VBI_CAPTURE:
2011                 res = RESOURCE_VBI;
2012                 break;
2013         default:
2014                 BUG();
2015         }
2016         return res;
2017 }
2018
2019 static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type)
2020 {
2021         struct videobuf_queue *q = bttv_queue(fh);
2022         int res = bttv_resource(fh);
2023
2024         if (check_btres(fh,res))
2025                 return -EBUSY;
2026         if (videobuf_queue_is_busy(q))
2027                 return -EBUSY;
2028         fh->type = type;
2029         return 0;
2030 }
2031
2032 static void
2033 pix_format_set_size     (struct v4l2_pix_format *       f,
2034                          const struct bttv_format *     fmt,
2035                          unsigned int                   width,
2036                          unsigned int                   height)
2037 {
2038         f->width = width;
2039         f->height = height;
2040
2041         if (fmt->flags & FORMAT_FLAGS_PLANAR) {
2042                 f->bytesperline = width; /* Y plane */
2043                 f->sizeimage = (width * height * fmt->depth) >> 3;
2044         } else {
2045                 f->bytesperline = (width * fmt->depth) >> 3;
2046                 f->sizeimage = height * f->bytesperline;
2047         }
2048 }
2049
2050 static int bttv_g_fmt(struct bttv_fh *fh, struct v4l2_format *f)
2051 {
2052         switch (f->type) {
2053         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2054                 memset(&f->fmt.pix,0,sizeof(struct v4l2_pix_format));
2055                 pix_format_set_size (&f->fmt.pix, fh->fmt,
2056                                      fh->width, fh->height);
2057                 f->fmt.pix.field        = fh->cap.field;
2058                 f->fmt.pix.pixelformat  = fh->fmt->fourcc;
2059                 return 0;
2060         case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2061                 memset(&f->fmt.win,0,sizeof(struct v4l2_window));
2062                 f->fmt.win.w     = fh->ov.w;
2063                 f->fmt.win.field = fh->ov.field;
2064                 return 0;
2065         case V4L2_BUF_TYPE_VBI_CAPTURE:
2066                 bttv_vbi_get_fmt(fh,f);
2067                 return 0;
2068         default:
2069                 return -EINVAL;
2070         }
2071 }
2072
2073 static int bttv_try_fmt(struct bttv_fh *fh, struct bttv *btv,
2074                         struct v4l2_format *f)
2075 {
2076         switch (f->type) {
2077         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2078         {
2079                 const struct bttv_format *fmt;
2080                 enum v4l2_field field;
2081                 unsigned int maxw,maxh;
2082
2083                 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2084                 if (NULL == fmt)
2085                         return -EINVAL;
2086
2087                 /* fixup format */
2088                 maxw  = bttv_tvnorms[btv->tvnorm].swidth;
2089                 maxh  = bttv_tvnorms[btv->tvnorm].sheight;
2090                 field = f->fmt.pix.field;
2091                 if (V4L2_FIELD_ANY == field)
2092                         field = (f->fmt.pix.height > maxh/2)
2093                                 ? V4L2_FIELD_INTERLACED
2094                                 : V4L2_FIELD_BOTTOM;
2095                 if (V4L2_FIELD_SEQ_BT == field)
2096                         field = V4L2_FIELD_SEQ_TB;
2097                 switch (field) {
2098                 case V4L2_FIELD_TOP:
2099                 case V4L2_FIELD_BOTTOM:
2100                 case V4L2_FIELD_ALTERNATE:
2101                         maxh = maxh/2;
2102                         break;
2103                 case V4L2_FIELD_INTERLACED:
2104                         break;
2105                 case V4L2_FIELD_SEQ_TB:
2106                         if (fmt->flags & FORMAT_FLAGS_PLANAR)
2107                                 return -EINVAL;
2108                         break;
2109                 default:
2110                         return -EINVAL;
2111                 }
2112
2113                 /* update data for the application */
2114                 f->fmt.pix.field = field;
2115                 if (f->fmt.pix.width  < 48)
2116                         f->fmt.pix.width  = 48;
2117                 if (f->fmt.pix.height < 32)
2118                         f->fmt.pix.height = 32;
2119                 if (f->fmt.pix.width  > maxw)
2120                         f->fmt.pix.width = maxw;
2121                 if (f->fmt.pix.height > maxh)
2122                         f->fmt.pix.height = maxh;
2123                 pix_format_set_size (&f->fmt.pix, fmt,
2124                                      f->fmt.pix.width & ~3,
2125                                      f->fmt.pix.height);
2126
2127                 return 0;
2128         }
2129         case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2130                 return verify_window(&bttv_tvnorms[btv->tvnorm],
2131                                      &f->fmt.win, 1);
2132         case V4L2_BUF_TYPE_VBI_CAPTURE:
2133                 bttv_vbi_try_fmt(fh,f);
2134                 return 0;
2135         default:
2136                 return -EINVAL;
2137         }
2138 }
2139
2140 static int bttv_s_fmt(struct bttv_fh *fh, struct bttv *btv,
2141                       struct v4l2_format *f)
2142 {
2143         int retval;
2144
2145         switch (f->type) {
2146         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2147         {
2148                 const struct bttv_format *fmt;
2149
2150                 retval = bttv_switch_type(fh,f->type);
2151                 if (0 != retval)
2152                         return retval;
2153                 retval = bttv_try_fmt(fh,btv,f);
2154                 if (0 != retval)
2155                         return retval;
2156                 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2157
2158                 /* update our state informations */
2159                 down(&fh->cap.lock);
2160                 fh->fmt              = fmt;
2161                 fh->cap.field        = f->fmt.pix.field;
2162                 fh->cap.last         = V4L2_FIELD_NONE;
2163                 fh->width            = f->fmt.pix.width;
2164                 fh->height           = f->fmt.pix.height;
2165                 btv->init.fmt        = fmt;
2166                 btv->init.width      = f->fmt.pix.width;
2167                 btv->init.height     = f->fmt.pix.height;
2168                 up(&fh->cap.lock);
2169
2170                 return 0;
2171         }
2172         case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2173                 if (no_overlay > 0) {
2174                         printk ("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2175                         return -EINVAL;
2176                 }
2177                 return setup_window(fh, btv, &f->fmt.win, 1);
2178         case V4L2_BUF_TYPE_VBI_CAPTURE:
2179                 retval = bttv_switch_type(fh,f->type);
2180                 if (0 != retval)
2181                         return retval;
2182                 if (locked_btres(fh->btv, RESOURCE_VBI))
2183                         return -EBUSY;
2184                 bttv_vbi_try_fmt(fh,f);
2185                 bttv_vbi_setlines(fh,btv,f->fmt.vbi.count[0]);
2186                 bttv_vbi_get_fmt(fh,f);
2187                 return 0;
2188         default:
2189                 return -EINVAL;
2190         }
2191 }
2192
2193 static int bttv_do_ioctl(struct inode *inode, struct file *file,
2194                          unsigned int cmd, void *arg)
2195 {
2196         struct bttv_fh *fh  = file->private_data;
2197         struct bttv    *btv = fh->btv;
2198         unsigned long flags;
2199         int retval = 0;
2200
2201         if (bttv_debug > 1) {
2202                 switch (_IOC_TYPE(cmd)) {
2203                 case 'v':
2204                         printk("bttv%d: ioctl 0x%x (v4l1, VIDIOC%s)\n",
2205                                btv->c.nr, cmd, (_IOC_NR(cmd) < V4L1_IOCTLS) ?
2206                                v4l1_ioctls[_IOC_NR(cmd)] : "???");
2207                         break;
2208                 case 'V':
2209                         printk("bttv%d: ioctl 0x%x (v4l2, %s)\n",
2210                                btv->c.nr, cmd,  v4l2_ioctl_names[_IOC_NR(cmd)]);
2211                         break;
2212                 default:
2213                         printk("bttv%d: ioctl 0x%x (???)\n",
2214                                btv->c.nr, cmd);
2215                 }
2216         }
2217         if (btv->errors)
2218                 bttv_reinit_bt848(btv);
2219
2220         switch (cmd) {
2221         case VIDIOCSFREQ:
2222         case VIDIOCSTUNER:
2223         case VIDIOCSCHAN:
2224         case VIDIOC_S_CTRL:
2225         case VIDIOC_S_STD:
2226         case VIDIOC_S_INPUT:
2227         case VIDIOC_S_TUNER:
2228         case VIDIOC_S_FREQUENCY:
2229                 retval = v4l2_prio_check(&btv->prio,&fh->prio);
2230                 if (0 != retval)
2231                         return retval;
2232         };
2233
2234         switch (cmd) {
2235
2236         /* ***  v4l1  *** ************************************************ */
2237         case VIDIOCGCAP:
2238         {
2239                 struct video_capability *cap = arg;
2240
2241                 memset(cap,0,sizeof(*cap));
2242                 strcpy(cap->name,btv->video_dev->name);
2243                 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
2244                         /* vbi */
2245                         cap->type = VID_TYPE_TUNER|VID_TYPE_TELETEXT;
2246                 } else {
2247                         /* others */
2248                         cap->type = VID_TYPE_CAPTURE|
2249                                 VID_TYPE_TUNER|
2250                                 VID_TYPE_CLIPPING|
2251                                 VID_TYPE_SCALES;
2252                         if (no_overlay <= 0)
2253                                 cap->type |= VID_TYPE_OVERLAY;
2254
2255                         cap->maxwidth  = bttv_tvnorms[btv->tvnorm].swidth;
2256                         cap->maxheight = bttv_tvnorms[btv->tvnorm].sheight;
2257                         cap->minwidth  = 48;
2258                         cap->minheight = 32;
2259                 }
2260                 cap->channels  = bttv_tvcards[btv->c.type].video_inputs;
2261                 cap->audios    = bttv_tvcards[btv->c.type].audio_inputs;
2262                 return 0;
2263         }
2264
2265         case VIDIOCGPICT:
2266         {
2267                 struct video_picture *pic = arg;
2268
2269                 memset(pic,0,sizeof(*pic));
2270                 pic->brightness = btv->bright;
2271                 pic->contrast   = btv->contrast;
2272                 pic->hue        = btv->hue;
2273                 pic->colour     = btv->saturation;
2274                 if (fh->fmt) {
2275                         pic->depth   = fh->fmt->depth;
2276                         pic->palette = fh->fmt->palette;
2277                 }
2278                 return 0;
2279         }
2280         case VIDIOCSPICT:
2281         {
2282                 struct video_picture *pic = arg;
2283                 const struct bttv_format *fmt;
2284
2285                 fmt = format_by_palette(pic->palette);
2286                 if (NULL == fmt)
2287                         return -EINVAL;
2288                 down(&fh->cap.lock);
2289                 if (fmt->depth != pic->depth) {
2290                         retval = -EINVAL;
2291                         goto fh_unlock_and_return;
2292                 }
2293                 fh->ovfmt   = fmt;
2294                 fh->fmt     = fmt;
2295                 btv->init.ovfmt   = fmt;
2296                 btv->init.fmt     = fmt;
2297                 if (bigendian) {
2298                         /* dirty hack time:  swap bytes for overlay if the
2299                            display adaptor is big endian (insmod option) */
2300                         if (fmt->palette == VIDEO_PALETTE_RGB555 ||
2301                             fmt->palette == VIDEO_PALETTE_RGB565 ||
2302                             fmt->palette == VIDEO_PALETTE_RGB32) {
2303                                 fh->ovfmt = fmt+1;
2304                         }
2305                 }
2306                 bt848_bright(btv,pic->brightness);
2307                 bt848_contrast(btv,pic->contrast);
2308                 bt848_hue(btv,pic->hue);
2309                 bt848_sat(btv,pic->colour);
2310                 up(&fh->cap.lock);
2311                 return 0;
2312         }
2313
2314         case VIDIOCGWIN:
2315         {
2316                 struct video_window *win = arg;
2317
2318                 memset(win,0,sizeof(*win));
2319                 win->x      = fh->ov.w.left;
2320                 win->y      = fh->ov.w.top;
2321                 win->width  = fh->ov.w.width;
2322                 win->height = fh->ov.w.height;
2323                 return 0;
2324         }
2325         case VIDIOCSWIN:
2326         {
2327                 struct video_window *win = arg;
2328                 struct v4l2_window w2;
2329
2330                 if (no_overlay > 0) {
2331                         printk ("VIDIOCSWIN: no_overlay\n");
2332                         return -EINVAL;
2333                 }
2334
2335                 w2.field = V4L2_FIELD_ANY;
2336                 w2.w.left    = win->x;
2337                 w2.w.top     = win->y;
2338                 w2.w.width   = win->width;
2339                 w2.w.height  = win->height;
2340                 w2.clipcount = win->clipcount;
2341                 w2.clips     = (struct v4l2_clip __user *)win->clips;
2342                 retval = setup_window(fh, btv, &w2, 0);
2343                 if (0 == retval) {
2344                         /* on v4l1 this ioctl affects the read() size too */
2345                         fh->width  = fh->ov.w.width;
2346                         fh->height = fh->ov.w.height;
2347                         btv->init.width  = fh->ov.w.width;
2348                         btv->init.height = fh->ov.w.height;
2349                 }
2350                 return retval;
2351         }
2352
2353         case VIDIOCGFBUF:
2354         {
2355                 struct video_buffer *fbuf = arg;
2356
2357                 fbuf->base          = btv->fbuf.base;
2358                 fbuf->width         = btv->fbuf.fmt.width;
2359                 fbuf->height        = btv->fbuf.fmt.height;
2360                 fbuf->bytesperline  = btv->fbuf.fmt.bytesperline;
2361                 if (fh->ovfmt)
2362                         fbuf->depth = fh->ovfmt->depth;
2363                 return 0;
2364         }
2365         case VIDIOCSFBUF:
2366         {
2367                 struct video_buffer *fbuf = arg;
2368                 const struct bttv_format *fmt;
2369                 unsigned long end;
2370
2371                 if(!capable(CAP_SYS_ADMIN) &&
2372                    !capable(CAP_SYS_RAWIO))
2373                         return -EPERM;
2374                 end = (unsigned long)fbuf->base +
2375                         fbuf->height * fbuf->bytesperline;
2376                 down(&fh->cap.lock);
2377                 retval = -EINVAL;
2378
2379                 switch (fbuf->depth) {
2380                 case 8:
2381                         fmt = format_by_palette(VIDEO_PALETTE_HI240);
2382                         break;
2383                 case 16:
2384                         fmt = format_by_palette(VIDEO_PALETTE_RGB565);
2385                         break;
2386                 case 24:
2387                         fmt = format_by_palette(VIDEO_PALETTE_RGB24);
2388                         break;
2389                 case 32:
2390                         fmt = format_by_palette(VIDEO_PALETTE_RGB32);
2391                         break;
2392                 case 15:
2393                         fbuf->depth = 16;
2394                         fmt = format_by_palette(VIDEO_PALETTE_RGB555);
2395                         break;
2396                 default:
2397                         fmt = NULL;
2398                         break;
2399                 }
2400                 if (NULL == fmt)
2401                         goto fh_unlock_and_return;
2402
2403                 fh->ovfmt = fmt;
2404                 fh->fmt   = fmt;
2405                 btv->init.ovfmt = fmt;
2406                 btv->init.fmt   = fmt;
2407                 btv->fbuf.base             = fbuf->base;
2408                 btv->fbuf.fmt.width        = fbuf->width;
2409                 btv->fbuf.fmt.height       = fbuf->height;
2410                 if (fbuf->bytesperline)
2411                         btv->fbuf.fmt.bytesperline = fbuf->bytesperline;
2412                 else
2413                         btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fbuf->depth/8;
2414                 up(&fh->cap.lock);
2415                 return 0;
2416         }
2417
2418         case VIDIOCCAPTURE:
2419         case VIDIOC_OVERLAY:
2420         {
2421                 struct bttv_buffer *new;
2422                 int *on = arg;
2423
2424                 if (*on) {
2425                         /* verify args */
2426                         if (NULL == btv->fbuf.base)
2427                                 return -EINVAL;
2428                         if (!fh->ov.setup_ok) {
2429                                 dprintk("bttv%d: overlay: !setup_ok\n",btv->c.nr);
2430                                 return -EINVAL;
2431                         }
2432                 }
2433
2434                 if (!check_alloc_btres(btv,fh,RESOURCE_OVERLAY))
2435                         return -EBUSY;
2436
2437                 down(&fh->cap.lock);
2438                 if (*on) {
2439                         fh->ov.tvnorm = btv->tvnorm;
2440                         new = videobuf_alloc(sizeof(*new));
2441                         bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2442                 } else {
2443                         new = NULL;
2444                 }
2445
2446                 /* switch over */
2447                 retval = bttv_switch_overlay(btv,fh,new);
2448                 up(&fh->cap.lock);
2449                 return retval;
2450         }
2451
2452         case VIDIOCGMBUF:
2453         {
2454                 struct video_mbuf *mbuf = arg;
2455                 unsigned int i;
2456
2457                 down(&fh->cap.lock);
2458                 retval = videobuf_mmap_setup(&fh->cap,gbuffers,gbufsize,
2459                                              V4L2_MEMORY_MMAP);
2460                 if (retval < 0)
2461                         goto fh_unlock_and_return;
2462                 memset(mbuf,0,sizeof(*mbuf));
2463                 mbuf->frames = gbuffers;
2464                 mbuf->size   = gbuffers * gbufsize;
2465                 for (i = 0; i < gbuffers; i++)
2466                         mbuf->offsets[i] = i * gbufsize;
2467                 up(&fh->cap.lock);
2468                 return 0;
2469         }
2470         case VIDIOCMCAPTURE:
2471         {
2472                 struct video_mmap *vm = arg;
2473                 struct bttv_buffer *buf;
2474                 enum v4l2_field field;
2475
2476                 if (vm->frame >= VIDEO_MAX_FRAME)
2477                         return -EINVAL;
2478
2479                 down(&fh->cap.lock);
2480                 retval = -EINVAL;
2481                 buf = (struct bttv_buffer *)fh->cap.bufs[vm->frame];
2482                 if (NULL == buf)
2483                         goto fh_unlock_and_return;
2484                 if (0 == buf->vb.baddr)
2485                         goto fh_unlock_and_return;
2486                 if (buf->vb.state == STATE_QUEUED ||
2487                     buf->vb.state == STATE_ACTIVE)
2488                         goto fh_unlock_and_return;
2489
2490                 field = (vm->height > bttv_tvnorms[btv->tvnorm].sheight/2)
2491                         ? V4L2_FIELD_INTERLACED
2492                         : V4L2_FIELD_BOTTOM;
2493                 retval = bttv_prepare_buffer(btv,buf,
2494                                              format_by_palette(vm->format),
2495                                              vm->width,vm->height,field);
2496                 if (0 != retval)
2497                         goto fh_unlock_and_return;
2498                 spin_lock_irqsave(&btv->s_lock,flags);
2499                 buffer_queue(&fh->cap,&buf->vb);
2500                 spin_unlock_irqrestore(&btv->s_lock,flags);
2501                 up(&fh->cap.lock);
2502                 return 0;
2503         }
2504         case VIDIOCSYNC:
2505         {
2506                 int *frame = arg;
2507                 struct bttv_buffer *buf;
2508
2509                 if (*frame >= VIDEO_MAX_FRAME)
2510                         return -EINVAL;
2511
2512                 down(&fh->cap.lock);
2513                 retval = -EINVAL;
2514                 buf = (struct bttv_buffer *)fh->cap.bufs[*frame];
2515                 if (NULL == buf)
2516                         goto fh_unlock_and_return;
2517                 retval = videobuf_waiton(&buf->vb,0,1);
2518                 if (0 != retval)
2519                         goto fh_unlock_and_return;
2520                 switch (buf->vb.state) {
2521                 case STATE_ERROR:
2522                         retval = -EIO;
2523                         /* fall through */
2524                 case STATE_DONE:
2525                         videobuf_dma_pci_sync(btv->c.pci,&buf->vb.dma);
2526                         bttv_dma_free(btv,buf);
2527                         break;
2528                 default:
2529                         retval = -EINVAL;
2530                         break;
2531                 }
2532                 up(&fh->cap.lock);
2533                 return retval;
2534         }
2535
2536         case VIDIOCGVBIFMT:
2537         {
2538                 struct vbi_format *fmt = (void *) arg;
2539                 struct v4l2_format fmt2;
2540
2541                 if (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE) {
2542                         retval = bttv_switch_type(fh,V4L2_BUF_TYPE_VBI_CAPTURE);
2543                         if (0 != retval)
2544                                 return retval;
2545                 }
2546                 bttv_vbi_get_fmt(fh, &fmt2);
2547
2548                 memset(fmt,0,sizeof(*fmt));
2549                 fmt->sampling_rate    = fmt2.fmt.vbi.sampling_rate;
2550                 fmt->samples_per_line = fmt2.fmt.vbi.samples_per_line;
2551                 fmt->sample_format    = VIDEO_PALETTE_RAW;
2552                 fmt->start[0]         = fmt2.fmt.vbi.start[0];
2553                 fmt->count[0]         = fmt2.fmt.vbi.count[0];
2554                 fmt->start[1]         = fmt2.fmt.vbi.start[1];
2555                 fmt->count[1]         = fmt2.fmt.vbi.count[1];
2556                 if (fmt2.fmt.vbi.flags & VBI_UNSYNC)
2557                         fmt->flags   |= V4L2_VBI_UNSYNC;
2558                 if (fmt2.fmt.vbi.flags & VBI_INTERLACED)
2559                         fmt->flags   |= V4L2_VBI_INTERLACED;
2560                 return 0;
2561         }
2562         case VIDIOCSVBIFMT:
2563         {
2564                 struct vbi_format *fmt = (void *) arg;
2565                 struct v4l2_format fmt2;
2566
2567                 retval = bttv_switch_type(fh,V4L2_BUF_TYPE_VBI_CAPTURE);
2568                 if (0 != retval)
2569                         return retval;
2570                 bttv_vbi_get_fmt(fh, &fmt2);
2571
2572                 if (fmt->sampling_rate    != fmt2.fmt.vbi.sampling_rate     ||
2573                     fmt->samples_per_line != fmt2.fmt.vbi.samples_per_line  ||
2574                     fmt->sample_format    != VIDEO_PALETTE_RAW              ||
2575                     fmt->start[0]         != fmt2.fmt.vbi.start[0]          ||
2576                     fmt->start[1]         != fmt2.fmt.vbi.start[1]          ||
2577                     fmt->count[0]         != fmt->count[1]                  ||
2578                     fmt->count[0]         <  1                              ||
2579                     fmt->count[0]         >  32 /* VBI_MAXLINES */)
2580                         return -EINVAL;
2581
2582                 bttv_vbi_setlines(fh,btv,fmt->count[0]);
2583                 return 0;
2584         }
2585
2586         case BTTV_VERSION:
2587         case VIDIOCGFREQ:
2588         case VIDIOCSFREQ:
2589         case VIDIOCGTUNER:
2590         case VIDIOCSTUNER:
2591         case VIDIOCGCHAN:
2592         case VIDIOCSCHAN:
2593         case VIDIOCGAUDIO:
2594         case VIDIOCSAUDIO:
2595                 return bttv_common_ioctls(btv,cmd,arg);
2596
2597         /* ***  v4l2  *** ************************************************ */
2598         case VIDIOC_QUERYCAP:
2599         {
2600                 struct v4l2_capability *cap = arg;
2601
2602                 if (0 == v4l2)
2603                         return -EINVAL;
2604                 strcpy(cap->driver,"bttv");
2605                 strlcpy(cap->card,btv->video_dev->name,sizeof(cap->card));
2606                 sprintf(cap->bus_info,"PCI:%s",pci_name(btv->c.pci));
2607                 cap->version = BTTV_VERSION_CODE;
2608                 cap->capabilities =
2609                         V4L2_CAP_VIDEO_CAPTURE |
2610                         V4L2_CAP_VBI_CAPTURE |
2611                         V4L2_CAP_READWRITE |
2612                         V4L2_CAP_STREAMING;
2613                 if (no_overlay <= 0)
2614                         cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
2615
2616                 if (bttv_tvcards[btv->c.type].tuner != UNSET &&
2617                     bttv_tvcards[btv->c.type].tuner != TUNER_ABSENT)
2618                         cap->capabilities |= V4L2_CAP_TUNER;
2619                 return 0;
2620         }
2621
2622         case VIDIOC_ENUM_FMT:
2623         {
2624                 struct v4l2_fmtdesc *f = arg;
2625                 enum v4l2_buf_type type;
2626                 unsigned int i;
2627                 int index;
2628
2629                 type  = f->type;
2630                 if (V4L2_BUF_TYPE_VBI_CAPTURE == type) {
2631                         /* vbi */
2632                         index = f->index;
2633                         if (0 != index)
2634                                 return -EINVAL;
2635                         memset(f,0,sizeof(*f));
2636                         f->index       = index;
2637                         f->type        = type;
2638                         f->pixelformat = V4L2_PIX_FMT_GREY;
2639                         strcpy(f->description,"vbi data");
2640                         return 0;
2641                 }
2642
2643                 /* video capture + overlay */
2644                 index = -1;
2645                 for (i = 0; i < BTTV_FORMATS; i++) {
2646                         if (bttv_formats[i].fourcc != -1)
2647                                 index++;
2648                         if ((unsigned int)index == f->index)
2649                                 break;
2650                 }
2651                 if (BTTV_FORMATS == i)
2652                         return -EINVAL;
2653
2654                 switch (f->type) {
2655                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2656                         break;
2657                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2658                         if (!(bttv_formats[i].flags & FORMAT_FLAGS_PACKED))
2659                                 return -EINVAL;
2660                         break;
2661                 default:
2662                         return -EINVAL;
2663                 }
2664                 memset(f,0,sizeof(*f));
2665                 f->index       = index;
2666                 f->type        = type;
2667                 f->pixelformat = bttv_formats[i].fourcc;
2668                 strlcpy(f->description,bttv_formats[i].name,sizeof(f->description));
2669                 return 0;
2670         }
2671
2672         case VIDIOC_TRY_FMT:
2673         {
2674                 struct v4l2_format *f = arg;
2675                 return bttv_try_fmt(fh,btv,f);
2676         }
2677         case VIDIOC_G_FMT:
2678         {
2679                 struct v4l2_format *f = arg;
2680                 return bttv_g_fmt(fh,f);
2681         }
2682         case VIDIOC_S_FMT:
2683         {
2684                 struct v4l2_format *f = arg;
2685                 return bttv_s_fmt(fh,btv,f);
2686         }
2687
2688         case VIDIOC_G_FBUF:
2689         {
2690                 struct v4l2_framebuffer *fb = arg;
2691
2692                 *fb = btv->fbuf;
2693                 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
2694                 if (fh->ovfmt)
2695                         fb->fmt.pixelformat  = fh->ovfmt->fourcc;
2696                 return 0;
2697         }
2698         case VIDIOC_S_FBUF:
2699         {
2700                 struct v4l2_framebuffer *fb = arg;
2701                 const struct bttv_format *fmt;
2702
2703                 if(!capable(CAP_SYS_ADMIN) &&
2704                    !capable(CAP_SYS_RAWIO))
2705                         return -EPERM;
2706
2707                 /* check args */
2708                 fmt = format_by_fourcc(fb->fmt.pixelformat);
2709                 if (NULL == fmt)
2710                         return -EINVAL;
2711                 if (0 == (fmt->flags & FORMAT_FLAGS_PACKED))
2712                         return -EINVAL;
2713
2714                 down(&fh->cap.lock);
2715                 retval = -EINVAL;
2716                 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2717                         if (fb->fmt.width > bttv_tvnorms[btv->tvnorm].swidth)
2718                                 goto fh_unlock_and_return;
2719                         if (fb->fmt.height > bttv_tvnorms[btv->tvnorm].sheight)
2720                                 goto fh_unlock_and_return;
2721                 }
2722
2723                 /* ok, accept it */
2724                 btv->fbuf.base       = fb->base;
2725                 btv->fbuf.fmt.width  = fb->fmt.width;
2726                 btv->fbuf.fmt.height = fb->fmt.height;
2727                 if (0 != fb->fmt.bytesperline)
2728                         btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline;
2729                 else
2730                         btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8;
2731
2732                 retval = 0;
2733                 fh->ovfmt = fmt;
2734                 btv->init.ovfmt = fmt;
2735                 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2736                         fh->ov.w.left   = 0;
2737                         fh->ov.w.top    = 0;
2738                         fh->ov.w.width  = fb->fmt.width;
2739                         fh->ov.w.height = fb->fmt.height;
2740                         btv->init.ov.w.width  = fb->fmt.width;
2741                         btv->init.ov.w.height = fb->fmt.height;
2742                         kfree(fh->ov.clips);
2743                         fh->ov.clips = NULL;
2744                         fh->ov.nclips = 0;
2745
2746                         if (check_btres(fh, RESOURCE_OVERLAY)) {
2747                                 struct bttv_buffer *new;
2748
2749                                 new = videobuf_alloc(sizeof(*new));
2750                                 bttv_overlay_risc(btv,&fh->ov,fh->ovfmt,new);
2751                                 retval = bttv_switch_overlay(btv,fh,new);
2752                         }
2753                 }
2754                 up(&fh->cap.lock);
2755                 return retval;
2756         }
2757
2758         case VIDIOC_REQBUFS:
2759                 return videobuf_reqbufs(bttv_queue(fh),arg);
2760
2761         case VIDIOC_QUERYBUF:
2762                 return videobuf_querybuf(bttv_queue(fh),arg);
2763
2764         case VIDIOC_QBUF:
2765                 return videobuf_qbuf(bttv_queue(fh),arg);
2766
2767         case VIDIOC_DQBUF:
2768                 return videobuf_dqbuf(bttv_queue(fh),arg,
2769                                       file->f_flags & O_NONBLOCK);
2770
2771         case VIDIOC_STREAMON:
2772         {
2773                 int res = bttv_resource(fh);
2774
2775                 if (!check_alloc_btres(btv,fh,res))
2776                         return -EBUSY;
2777                 return videobuf_streamon(bttv_queue(fh));
2778         }
2779         case VIDIOC_STREAMOFF:
2780         {
2781                 int res = bttv_resource(fh);
2782
2783                 retval = videobuf_streamoff(bttv_queue(fh));
2784                 if (retval < 0)
2785                         return retval;
2786                 free_btres(btv,fh,res);
2787                 return 0;
2788         }
2789
2790         case VIDIOC_QUERYCTRL:
2791         {
2792                 struct v4l2_queryctrl *c = arg;
2793                 int i;
2794
2795                 if ((c->id <  V4L2_CID_BASE ||
2796                      c->id >= V4L2_CID_LASTP1) &&
2797                     (c->id <  V4L2_CID_PRIVATE_BASE ||
2798                      c->id >= V4L2_CID_PRIVATE_LASTP1))
2799                         return -EINVAL;
2800                 for (i = 0; i < BTTV_CTLS; i++)
2801                         if (bttv_ctls[i].id == c->id)
2802                                 break;
2803                 if (i == BTTV_CTLS) {
2804                         *c = no_ctl;
2805                         return 0;
2806                 }
2807                 *c = bttv_ctls[i];
2808                 if (i >= 4 && i <= 8) {
2809                         struct video_audio va;
2810                         memset(&va,0,sizeof(va));
2811                         bttv_call_i2c_clients(btv, VIDIOCGAUDIO, &va);
2812                         if (btv->audio_hook)
2813                                 btv->audio_hook(btv,&va,0);
2814                         switch (bttv_ctls[i].id) {
2815                         case V4L2_CID_AUDIO_VOLUME:
2816                                 if (!(va.flags & VIDEO_AUDIO_VOLUME))
2817                                         *c = no_ctl;
2818                                 break;
2819                         case V4L2_CID_AUDIO_BALANCE:
2820                                 if (!(va.flags & VIDEO_AUDIO_BALANCE))
2821                                         *c = no_ctl;
2822                                 break;
2823                         case V4L2_CID_AUDIO_BASS:
2824                                 if (!(va.flags & VIDEO_AUDIO_BASS))
2825                                         *c = no_ctl;
2826                                 break;
2827                         case V4L2_CID_AUDIO_TREBLE:
2828                                 if (!(va.flags & VIDEO_AUDIO_TREBLE))
2829                                         *c = no_ctl;
2830                                 break;
2831                         }
2832                 }
2833                 return 0;
2834         }
2835         case VIDIOC_G_CTRL:
2836                 return get_control(btv,arg);
2837         case VIDIOC_S_CTRL:
2838                 return set_control(btv,arg);
2839         case VIDIOC_G_PARM:
2840         {
2841                 struct v4l2_streamparm *parm = arg;
2842                 struct v4l2_standard s;
2843                 if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
2844                         return -EINVAL;
2845                 memset(parm,0,sizeof(*parm));
2846                 v4l2_video_std_construct(&s, bttv_tvnorms[btv->tvnorm].v4l2_id,
2847                                          bttv_tvnorms[btv->tvnorm].name);
2848                 parm->parm.capture.timeperframe = s.frameperiod;
2849                 return 0;
2850         }
2851
2852         case VIDIOC_G_PRIORITY:
2853         {
2854                 enum v4l2_priority *p = arg;
2855
2856                 *p = v4l2_prio_max(&btv->prio);
2857                 return 0;
2858         }
2859         case VIDIOC_S_PRIORITY:
2860         {
2861                 enum v4l2_priority *prio = arg;
2862
2863                 return v4l2_prio_change(&btv->prio, &fh->prio, *prio);
2864         }
2865
2866         case VIDIOC_ENUMSTD:
2867         case VIDIOC_G_STD:
2868         case VIDIOC_S_STD:
2869         case VIDIOC_ENUMINPUT:
2870         case VIDIOC_G_INPUT:
2871         case VIDIOC_S_INPUT:
2872         case VIDIOC_G_TUNER:
2873         case VIDIOC_S_TUNER:
2874         case VIDIOC_G_FREQUENCY:
2875         case VIDIOC_S_FREQUENCY:
2876         case VIDIOC_LOG_STATUS:
2877                 return bttv_common_ioctls(btv,cmd,arg);
2878
2879         default:
2880                 return -ENOIOCTLCMD;
2881         }
2882         return 0;
2883
2884  fh_unlock_and_return:
2885         up(&fh->cap.lock);
2886         return retval;
2887 }
2888
2889 static int bttv_ioctl(struct inode *inode, struct file *file,
2890                       unsigned int cmd, unsigned long arg)
2891 {
2892         struct bttv_fh *fh  = file->private_data;
2893
2894         switch (cmd) {
2895         case BTTV_VBISIZE:
2896                 bttv_switch_type(fh,V4L2_BUF_TYPE_VBI_CAPTURE);
2897                 return fh->lines * 2 * 2048;
2898         default:
2899                 return video_usercopy(inode, file, cmd, arg, bttv_do_ioctl);
2900         }
2901 }
2902
2903 static ssize_t bttv_read(struct file *file, char __user *data,
2904                          size_t count, loff_t *ppos)
2905 {
2906         struct bttv_fh *fh = file->private_data;
2907         int retval = 0;
2908
2909         if (fh->btv->errors)
2910                 bttv_reinit_bt848(fh->btv);
2911         dprintk("bttv%d: read count=%d type=%s\n",
2912                 fh->btv->c.nr,(int)count,v4l2_type_names[fh->type]);
2913
2914         switch (fh->type) {
2915         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2916                 if (locked_btres(fh->btv,RESOURCE_VIDEO))
2917                         return -EBUSY;
2918                 retval = videobuf_read_one(&fh->cap, data, count, ppos,
2919                                            file->f_flags & O_NONBLOCK);
2920                 break;
2921         case V4L2_BUF_TYPE_VBI_CAPTURE:
2922                 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
2923                         return -EBUSY;
2924                 retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1,
2925                                               file->f_flags & O_NONBLOCK);
2926                 break;
2927         default:
2928                 BUG();
2929         }
2930         return retval;
2931 }
2932
2933 static unsigned int bttv_poll(struct file *file, poll_table *wait)
2934 {
2935         struct bttv_fh *fh = file->private_data;
2936         struct bttv_buffer *buf;
2937         enum v4l2_field field;
2938
2939         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
2940                 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
2941                         return POLLERR;
2942                 return videobuf_poll_stream(file, &fh->vbi, wait);
2943         }
2944
2945         if (check_btres(fh,RESOURCE_VIDEO)) {
2946                 /* streaming capture */
2947                 if (list_empty(&fh->cap.stream))
2948                         return POLLERR;
2949                 buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
2950         } else {
2951                 /* read() capture */
2952                 down(&fh->cap.lock);
2953                 if (NULL == fh->cap.read_buf) {
2954                         /* need to capture a new frame */
2955                         if (locked_btres(fh->btv,RESOURCE_VIDEO)) {
2956                                 up(&fh->cap.lock);
2957                                 return POLLERR;
2958                         }
2959                         fh->cap.read_buf = videobuf_alloc(fh->cap.msize);
2960                         if (NULL == fh->cap.read_buf) {
2961                                 up(&fh->cap.lock);
2962                                 return POLLERR;
2963                         }
2964                         fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR;
2965                         field = videobuf_next_field(&fh->cap);
2966                         if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) {
2967                                 kfree (fh->cap.read_buf);
2968                                 fh->cap.read_buf = NULL;
2969                                 up(&fh->cap.lock);
2970                                 return POLLERR;
2971                         }
2972                         fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
2973                         fh->cap.read_off = 0;
2974                 }
2975                 up(&fh->cap.lock);
2976                 buf = (struct bttv_buffer*)fh->cap.read_buf;
2977         }
2978
2979         poll_wait(file, &buf->vb.done, wait);
2980         if (buf->vb.state == STATE_DONE ||
2981             buf->vb.state == STATE_ERROR)
2982                 return POLLIN|POLLRDNORM;
2983         return 0;
2984 }
2985
2986 static int bttv_open(struct inode *inode, struct file *file)
2987 {
2988         int minor = iminor(inode);
2989         struct bttv *btv = NULL;
2990         struct bttv_fh *fh;
2991         enum v4l2_buf_type type = 0;
2992         unsigned int i;
2993
2994         dprintk(KERN_DEBUG "bttv: open minor=%d\n",minor);
2995
2996         for (i = 0; i < bttv_num; i++) {
2997                 if (bttvs[i].video_dev &&
2998                     bttvs[i].video_dev->minor == minor) {
2999                         btv = &bttvs[i];
3000                         type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3001                         break;
3002                 }
3003                 if (bttvs[i].vbi_dev &&
3004                     bttvs[i].vbi_dev->minor == minor) {
3005                         btv = &bttvs[i];
3006                         type = V4L2_BUF_TYPE_VBI_CAPTURE;
3007                         break;
3008                 }
3009         }
3010         if (NULL == btv)
3011                 return -ENODEV;
3012
3013         dprintk(KERN_DEBUG "bttv%d: open called (type=%s)\n",
3014                 btv->c.nr,v4l2_type_names[type]);
3015
3016         /* allocate per filehandle data */
3017         fh = kmalloc(sizeof(*fh),GFP_KERNEL);
3018         if (NULL == fh)
3019                 return -ENOMEM;
3020         file->private_data = fh;
3021         *fh = btv->init;
3022         fh->type = type;
3023         fh->ov.setup_ok = 0;
3024         v4l2_prio_open(&btv->prio,&fh->prio);
3025
3026         videobuf_queue_init(&fh->cap, &bttv_video_qops,
3027                             btv->c.pci, &btv->s_lock,
3028                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
3029                             V4L2_FIELD_INTERLACED,
3030                             sizeof(struct bttv_buffer),
3031                             fh);
3032         videobuf_queue_init(&fh->vbi, &bttv_vbi_qops,
3033                             btv->c.pci, &btv->s_lock,
3034                             V4L2_BUF_TYPE_VBI_CAPTURE,
3035                             V4L2_FIELD_SEQ_TB,
3036                             sizeof(struct bttv_buffer),
3037                             fh);
3038         i2c_vidiocschan(btv);
3039
3040         btv->users++;
3041         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)
3042                 bttv_vbi_setlines(fh,btv,16);
3043         bttv_field_count(btv);
3044         return 0;
3045 }
3046
3047 static int bttv_release(struct inode *inode, struct file *file)
3048 {
3049         struct bttv_fh *fh = file->private_data;
3050         struct bttv *btv = fh->btv;
3051
3052         /* turn off overlay */
3053         if (check_btres(fh, RESOURCE_OVERLAY))
3054                 bttv_switch_overlay(btv,fh,NULL);
3055
3056         /* stop video capture */
3057         if (check_btres(fh, RESOURCE_VIDEO)) {
3058                 videobuf_streamoff(&fh->cap);
3059                 free_btres(btv,fh,RESOURCE_VIDEO);
3060         }
3061         if (fh->cap.read_buf) {
3062                 buffer_release(&fh->cap,fh->cap.read_buf);
3063                 kfree(fh->cap.read_buf);
3064         }
3065
3066         /* stop vbi capture */
3067         if (check_btres(fh, RESOURCE_VBI)) {
3068                 if (fh->vbi.streaming)
3069                         videobuf_streamoff(&fh->vbi);
3070                 if (fh->vbi.reading)
3071                         videobuf_read_stop(&fh->vbi);
3072                 free_btres(btv,fh,RESOURCE_VBI);
3073         }
3074
3075         /* free stuff */
3076         videobuf_mmap_free(&fh->cap);
3077         videobuf_mmap_free(&fh->vbi);
3078         v4l2_prio_close(&btv->prio,&fh->prio);
3079         file->private_data = NULL;
3080         kfree(fh);
3081
3082         btv->users--;
3083         bttv_field_count(btv);
3084         return 0;
3085 }
3086
3087 static int
3088 bttv_mmap(struct file *file, struct vm_area_struct *vma)
3089 {
3090         struct bttv_fh *fh = file->private_data;
3091
3092         dprintk("bttv%d: mmap type=%s 0x%lx+%ld\n",
3093                 fh->btv->c.nr, v4l2_type_names[fh->type],
3094                 vma->vm_start, vma->vm_end - vma->vm_start);
3095         return videobuf_mmap_mapper(bttv_queue(fh),vma);
3096 }
3097
3098 static struct file_operations bttv_fops =
3099 {
3100         .owner    = THIS_MODULE,
3101         .open     = bttv_open,
3102         .release  = bttv_release,
3103         .ioctl    = bttv_ioctl,
3104         .llseek   = no_llseek,
3105         .read     = bttv_read,
3106         .mmap     = bttv_mmap,
3107         .poll     = bttv_poll,
3108 };
3109
3110 static struct video_device bttv_video_template =
3111 {
3112         .name     = "UNSET",
3113         .type     = VID_TYPE_CAPTURE|VID_TYPE_TUNER|
3114                     VID_TYPE_CLIPPING|VID_TYPE_SCALES,
3115         .hardware = VID_HARDWARE_BT848,
3116         .fops     = &bttv_fops,
3117         .minor    = -1,
3118 };
3119
3120 static struct video_device bttv_vbi_template =
3121 {
3122         .name     = "bt848/878 vbi",
3123         .type     = VID_TYPE_TUNER|VID_TYPE_TELETEXT,
3124         .hardware = VID_HARDWARE_BT848,
3125         .fops     = &bttv_fops,
3126         .minor    = -1,
3127 };
3128
3129 /* ----------------------------------------------------------------------- */
3130 /* radio interface                                                         */
3131
3132 static int radio_open(struct inode *inode, struct file *file)
3133 {
3134         int minor = iminor(inode);
3135         struct bttv *btv = NULL;
3136         unsigned int i;
3137
3138         dprintk("bttv: open minor=%d\n",minor);
3139
3140         for (i = 0; i < bttv_num; i++) {
3141                 if (bttvs[i].radio_dev->minor == minor) {
3142                         btv = &bttvs[i];
3143                         break;
3144                 }
3145         }
3146         if (NULL == btv)
3147                 return -ENODEV;
3148
3149         dprintk("bttv%d: open called (radio)\n",btv->c.nr);
3150         down(&btv->lock);
3151
3152         btv->radio_user++;
3153
3154         file->private_data = btv;
3155
3156         bttv_call_i2c_clients(btv,AUDC_SET_RADIO,&btv->tuner_type);
3157         audio_mux(btv,AUDIO_RADIO);
3158
3159         up(&btv->lock);
3160         return 0;
3161 }
3162
3163 static int radio_release(struct inode *inode, struct file *file)
3164 {
3165         struct bttv        *btv = file->private_data;
3166         struct rds_command cmd;
3167
3168         btv->radio_user--;
3169
3170         bttv_call_i2c_clients(btv, RDS_CMD_CLOSE, &cmd);
3171
3172         return 0;
3173 }
3174
3175 static int radio_do_ioctl(struct inode *inode, struct file *file,
3176                           unsigned int cmd, void *arg)
3177 {
3178         struct bttv    *btv = file->private_data;
3179
3180         switch (cmd) {
3181         case VIDIOCGCAP:
3182         {
3183                 struct video_capability *cap = arg;
3184
3185                 memset(cap,0,sizeof(*cap));
3186                 strcpy(cap->name,btv->radio_dev->name);
3187                 cap->type = VID_TYPE_TUNER;
3188                 cap->channels = 1;
3189                 cap->audios = 1;
3190                 return 0;
3191         }
3192
3193         case VIDIOCGTUNER:
3194         {
3195                 struct video_tuner *v = arg;
3196
3197                 if(v->tuner)
3198                         return -EINVAL;
3199                 memset(v,0,sizeof(*v));
3200                 strcpy(v->name, "Radio");
3201                 bttv_call_i2c_clients(btv,cmd,v);
3202                 return 0;
3203         }
3204         case VIDIOCSTUNER:
3205                 /* nothing to do */
3206                 return 0;
3207
3208         case BTTV_VERSION:
3209         case VIDIOCGFREQ:
3210         case VIDIOCSFREQ:
3211         case VIDIOCGAUDIO:
3212         case VIDIOCSAUDIO:
3213                 return bttv_common_ioctls(btv,cmd,arg);
3214
3215         default:
3216                 return -ENOIOCTLCMD;
3217         }
3218         return 0;
3219 }
3220
3221 static int radio_ioctl(struct inode *inode, struct file *file,
3222                        unsigned int cmd, unsigned long arg)
3223 {
3224         return video_usercopy(inode, file, cmd, arg, radio_do_ioctl);
3225 }
3226
3227 static ssize_t radio_read(struct file *file, char __user *data,
3228                          size_t count, loff_t *ppos)
3229 {
3230         struct bttv    *btv = file->private_data;
3231         struct rds_command cmd;
3232         cmd.block_count = count/3;
3233         cmd.buffer = data;
3234         cmd.instance = file;
3235         cmd.result = -ENODEV;
3236
3237         bttv_call_i2c_clients(btv, RDS_CMD_READ, &cmd);
3238
3239         return cmd.result;
3240 }
3241
3242 static unsigned int radio_poll(struct file *file, poll_table *wait)
3243 {
3244         struct bttv    *btv = file->private_data;
3245         struct rds_command cmd;
3246         cmd.instance = file;
3247         cmd.event_list = wait;
3248         cmd.result = -ENODEV;
3249         bttv_call_i2c_clients(btv, RDS_CMD_POLL, &cmd);
3250
3251         return cmd.result;
3252 }
3253
3254 static struct file_operations radio_fops =
3255 {
3256         .owner    = THIS_MODULE,
3257         .open     = radio_open,
3258         .read     = radio_read,
3259         .release  = radio_release,
3260         .ioctl    = radio_ioctl,
3261         .llseek   = no_llseek,
3262         .poll     = radio_poll,
3263 };
3264
3265 static struct video_device radio_template =
3266 {
3267         .name     = "bt848/878 radio",
3268         .type     = VID_TYPE_TUNER,
3269         .hardware = VID_HARDWARE_BT848,
3270         .fops     = &radio_fops,
3271         .minor    = -1,
3272 };
3273
3274 /* ----------------------------------------------------------------------- */
3275 /* some debug code                                                         */
3276
3277 static int bttv_risc_decode(u32 risc)
3278 {
3279         static char *instr[16] = {
3280                 [ BT848_RISC_WRITE     >> 28 ] = "write",
3281                 [ BT848_RISC_SKIP      >> 28 ] = "skip",
3282                 [ BT848_RISC_WRITEC    >> 28 ] = "writec",
3283                 [ BT848_RISC_JUMP      >> 28 ] = "jump",
3284                 [ BT848_RISC_SYNC      >> 28 ] = "sync",
3285                 [ BT848_RISC_WRITE123  >> 28 ] = "write123",
3286                 [ BT848_RISC_SKIP123   >> 28 ] = "skip123",
3287                 [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23",
3288         };
3289         static int incr[16] = {
3290                 [ BT848_RISC_WRITE     >> 28 ] = 2,
3291                 [ BT848_RISC_JUMP      >> 28 ] = 2,
3292                 [ BT848_RISC_SYNC      >> 28 ] = 2,
3293                 [ BT848_RISC_WRITE123  >> 28 ] = 5,
3294                 [ BT848_RISC_SKIP123   >> 28 ] = 2,
3295                 [ BT848_RISC_WRITE1S23 >> 28 ] = 3,
3296         };
3297         static char *bits[] = {
3298                 "be0",  "be1",  "be2",  "be3/resync",
3299                 "set0", "set1", "set2", "set3",
3300                 "clr0", "clr1", "clr2", "clr3",
3301                 "irq",  "res",  "eol",  "sol",
3302         };
3303         int i;
3304
3305         printk("0x%08x [ %s", risc,
3306                instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
3307         for (i = ARRAY_SIZE(bits)-1; i >= 0; i--)
3308                 if (risc & (1 << (i + 12)))
3309                         printk(" %s",bits[i]);
3310         printk(" count=%d ]\n", risc & 0xfff);
3311         return incr[risc >> 28] ? incr[risc >> 28] : 1;
3312 }
3313
3314 static void bttv_risc_disasm(struct bttv *btv,
3315                              struct btcx_riscmem *risc)
3316 {
3317         unsigned int i,j,n;
3318
3319         printk("%s: risc disasm: %p [dma=0x%08lx]\n",
3320                btv->c.name, risc->cpu, (unsigned long)risc->dma);
3321         for (i = 0; i < (risc->size >> 2); i += n) {
3322                 printk("%s:   0x%lx: ", btv->c.name,
3323                        (unsigned long)(risc->dma + (i<<2)));
3324                 n = bttv_risc_decode(risc->cpu[i]);
3325                 for (j = 1; j < n; j++)
3326                         printk("%s:   0x%lx: 0x%08x [ arg #%d ]\n",
3327                                btv->c.name, (unsigned long)(risc->dma + ((i+j)<<2)),
3328                                risc->cpu[i+j], j);
3329                 if (0 == risc->cpu[i])
3330                         break;
3331         }
3332 }
3333
3334 static void bttv_print_riscaddr(struct bttv *btv)
3335 {
3336         printk("  main: %08Lx\n",
3337                (unsigned long long)btv->main.dma);
3338         printk("  vbi : o=%08Lx e=%08Lx\n",
3339                btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0,
3340                btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0);
3341         printk("  cap : o=%08Lx e=%08Lx\n",
3342                btv->curr.top    ? (unsigned long long)btv->curr.top->top.dma : 0,
3343                btv->curr.bottom ? (unsigned long long)btv->curr.bottom->bottom.dma : 0);
3344         printk("  scr : o=%08Lx e=%08Lx\n",
3345                btv->screen ? (unsigned long long)btv->screen->top.dma : 0,
3346                btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0);
3347         bttv_risc_disasm(btv, &btv->main);
3348 }
3349
3350 /* ----------------------------------------------------------------------- */
3351 /* irq handler                                                             */
3352
3353 static char *irq_name[] = {
3354         "FMTCHG",  // format change detected (525 vs. 625)
3355         "VSYNC",   // vertical sync (new field)
3356         "HSYNC",   // horizontal sync
3357         "OFLOW",   // chroma/luma AGC overflow
3358         "HLOCK",   // horizontal lock changed
3359         "VPRES",   // video presence changed
3360         "6", "7",
3361         "I2CDONE", // hw irc operation finished
3362         "GPINT",   // gpio port triggered irq
3363         "10",
3364         "RISCI",   // risc instruction triggered irq
3365         "FBUS",    // pixel data fifo dropped data (high pci bus latencies)
3366         "FTRGT",   // pixel data fifo overrun
3367         "FDSR",    // fifo data stream resyncronisation
3368         "PPERR",   // parity error (data transfer)
3369         "RIPERR",  // parity error (read risc instructions)
3370         "PABORT",  // pci abort
3371         "OCERR",   // risc instruction error
3372         "SCERR",   // syncronisation error
3373 };
3374
3375 static void bttv_print_irqbits(u32 print, u32 mark)
3376 {
3377         unsigned int i;
3378
3379         printk("bits:");
3380         for (i = 0; i < ARRAY_SIZE(irq_name); i++) {
3381                 if (print & (1 << i))
3382                         printk(" %s",irq_name[i]);
3383                 if (mark & (1 << i))
3384                         printk("*");
3385         }
3386 }
3387
3388 static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc)
3389 {
3390         printk("bttv%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n",
3391                btv->c.nr,
3392                (unsigned long)btv->main.dma,
3393                (unsigned long)btv->main.cpu[RISC_SLOT_O_VBI+1],
3394                (unsigned long)btv->main.cpu[RISC_SLOT_O_FIELD+1],
3395                (unsigned long)rc);
3396
3397         if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) {
3398                 printk("bttv%d: Oh, there (temporarely?) is no input signal. "
3399                        "Ok, then this is harmless, don't worry ;)\n",
3400                        btv->c.nr);
3401                 return;
3402         }
3403         printk("bttv%d: Uhm. Looks like we have unusual high IRQ latencies.\n",
3404                btv->c.nr);
3405         printk("bttv%d: Lets try to catch the culpit red-handed ...\n",
3406                btv->c.nr);
3407         dump_stack();
3408 }
3409
3410 static int
3411 bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set)
3412 {
3413         struct bttv_buffer *item;
3414
3415         memset(set,0,sizeof(*set));
3416
3417         /* capture request ? */
3418         if (!list_empty(&btv->capture)) {
3419                 set->frame_irq = 1;
3420                 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3421                 if (V4L2_FIELD_HAS_TOP(item->vb.field))
3422                         set->top    = item;
3423                 if (V4L2_FIELD_HAS_BOTTOM(item->vb.field))
3424                         set->bottom = item;
3425
3426                 /* capture request for other field ? */
3427                 if (!V4L2_FIELD_HAS_BOTH(item->vb.field) &&
3428                     (item->vb.queue.next != &btv->capture)) {
3429                         item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue);
3430                         if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) {
3431                                 if (NULL == set->top &&
3432                                     V4L2_FIELD_TOP == item->vb.field) {
3433                                         set->top = item;
3434                                 }
3435                                 if (NULL == set->bottom &&
3436                                     V4L2_FIELD_BOTTOM == item->vb.field) {
3437                                         set->bottom = item;
3438                                 }
3439                                 if (NULL != set->top  &&  NULL != set->bottom)
3440                                         set->top_irq = 2;
3441                         }
3442                 }
3443         }
3444
3445         /* screen overlay ? */
3446         if (NULL != btv->screen) {
3447                 if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) {
3448                         if (NULL == set->top && NULL == set->bottom) {
3449                                 set->top    = btv->screen;
3450                                 set->bottom = btv->screen;
3451                         }
3452                 } else {
3453                         if (V4L2_FIELD_TOP == btv->screen->vb.field &&
3454                             NULL == set->top) {
3455                                 set->top = btv->screen;
3456                         }
3457                         if (V4L2_FIELD_BOTTOM == btv->screen->vb.field &&
3458                             NULL == set->bottom) {
3459                                 set->bottom = btv->screen;
3460                         }
3461                 }
3462         }
3463
3464         dprintk("bttv%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n",
3465                 btv->c.nr,set->top, set->bottom,
3466                 btv->screen,set->frame_irq,set->top_irq);
3467         return 0;
3468 }
3469
3470 static void
3471 bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup,
3472                       struct bttv_buffer_set *curr, unsigned int state)
3473 {
3474         struct timeval ts;
3475
3476         do_gettimeofday(&ts);
3477
3478         if (wakeup->top == wakeup->bottom) {
3479                 if (NULL != wakeup->top && curr->top != wakeup->top) {
3480                         if (irq_debug > 1)
3481                                 printk("bttv%d: wakeup: both=%p\n",btv->c.nr,wakeup->top);
3482                         wakeup->top->vb.ts = ts;
3483                         wakeup->top->vb.field_count = btv->field_count;
3484                         wakeup->top->vb.state = state;
3485                         wake_up(&wakeup->top->vb.done);
3486                 }
3487         } else {
3488                 if (NULL != wakeup->top && curr->top != wakeup->top) {
3489                         if (irq_debug > 1)
3490                                 printk("bttv%d: wakeup: top=%p\n",btv->c.nr,wakeup->top);
3491                         wakeup->top->vb.ts = ts;
3492                         wakeup->top->vb.field_count = btv->field_count;
3493                         wakeup->top->vb.state = state;
3494                         wake_up(&wakeup->top->vb.done);
3495                 }
3496                 if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) {
3497                         if (irq_debug > 1)
3498                                 printk("bttv%d: wakeup: bottom=%p\n",btv->c.nr,wakeup->bottom);
3499                         wakeup->bottom->vb.ts = ts;
3500                         wakeup->bottom->vb.field_count = btv->field_count;
3501                         wakeup->bottom->vb.state = state;
3502                         wake_up(&wakeup->bottom->vb.done);
3503                 }
3504         }
3505 }
3506
3507 static void
3508 bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup,
3509                     unsigned int state)
3510 {
3511         struct timeval ts;
3512
3513         if (NULL == wakeup)
3514                 return;
3515
3516         do_gettimeofday(&ts);
3517         wakeup->vb.ts = ts;
3518         wakeup->vb.field_count = btv->field_count;
3519         wakeup->vb.state = state;
3520         wake_up(&wakeup->vb.done);
3521 }
3522
3523 static void bttv_irq_timeout(unsigned long data)
3524 {
3525         struct bttv *btv = (struct bttv *)data;
3526         struct bttv_buffer_set old,new;
3527         struct bttv_buffer *ovbi;
3528         struct bttv_buffer *item;
3529         unsigned long flags;
3530
3531         if (bttv_verbose) {
3532                 printk(KERN_INFO "bttv%d: timeout: drop=%d irq=%d/%d, risc=%08x, ",
3533                        btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total,
3534                        btread(BT848_RISC_COUNT));
3535                 bttv_print_irqbits(btread(BT848_INT_STAT),0);
3536                 printk("\n");
3537         }
3538
3539         spin_lock_irqsave(&btv->s_lock,flags);
3540
3541         /* deactivate stuff */
3542         memset(&new,0,sizeof(new));
3543         old  = btv->curr;
3544         ovbi = btv->cvbi;
3545         btv->curr = new;
3546         btv->cvbi = NULL;
3547         btv->loop_irq = 0;
3548         bttv_buffer_activate_video(btv, &new);
3549         bttv_buffer_activate_vbi(btv,   NULL);
3550         bttv_set_dma(btv, 0);
3551
3552         /* wake up */
3553         bttv_irq_wakeup_video(btv, &old, &new, STATE_ERROR);
3554         bttv_irq_wakeup_vbi(btv, ovbi, STATE_ERROR);
3555
3556         /* cancel all outstanding capture / vbi requests */
3557         while (!list_empty(&btv->capture)) {
3558                 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3559                 list_del(&item->vb.queue);
3560                 item->vb.state = STATE_ERROR;
3561                 wake_up(&item->vb.done);
3562         }
3563         while (!list_empty(&btv->vcapture)) {
3564                 item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3565                 list_del(&item->vb.queue);
3566                 item->vb.state = STATE_ERROR;
3567                 wake_up(&item->vb.done);
3568         }
3569
3570         btv->errors++;
3571         spin_unlock_irqrestore(&btv->s_lock,flags);
3572 }
3573
3574 static void
3575 bttv_irq_wakeup_top(struct bttv *btv)
3576 {
3577         struct bttv_buffer *wakeup = btv->curr.top;
3578
3579         if (NULL == wakeup)
3580                 return;
3581
3582         spin_lock(&btv->s_lock);
3583         btv->curr.top_irq = 0;
3584         btv->curr.top = NULL;
3585         bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
3586
3587         do_gettimeofday(&wakeup->vb.ts);
3588         wakeup->vb.field_count = btv->field_count;
3589         wakeup->vb.state = STATE_DONE;
3590         wake_up(&wakeup->vb.done);
3591         spin_unlock(&btv->s_lock);
3592 }
3593
3594 static inline int is_active(struct btcx_riscmem *risc, u32 rc)
3595 {
3596         if (rc < risc->dma)
3597                 return 0;
3598         if (rc > risc->dma + risc->size)
3599                 return 0;
3600         return 1;
3601 }
3602
3603 static void
3604 bttv_irq_switch_video(struct bttv *btv)
3605 {
3606         struct bttv_buffer_set new;
3607         struct bttv_buffer_set old;
3608         dma_addr_t rc;
3609
3610         spin_lock(&btv->s_lock);
3611
3612         /* new buffer set */
3613         bttv_irq_next_video(btv, &new);
3614         rc = btread(BT848_RISC_COUNT);
3615         if ((btv->curr.top    && is_active(&btv->curr.top->top,       rc)) ||
3616             (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) {
3617                 btv->framedrop++;
3618                 if (debug_latency)
3619                         bttv_irq_debug_low_latency(btv, rc);
3620                 spin_unlock(&btv->s_lock);
3621                 return;
3622         }
3623
3624         /* switch over */
3625         old = btv->curr;
3626         btv->curr = new;
3627         btv->loop_irq &= ~1;
3628         bttv_buffer_activate_video(btv, &new);
3629         bttv_set_dma(btv, 0);
3630
3631         /* switch input */
3632         if (UNSET != btv->new_input) {
3633                 video_mux(btv,btv->new_input);
3634                 btv->new_input = UNSET;
3635         }
3636
3637         /* wake up finished buffers */
3638         bttv_irq_wakeup_video(btv, &old, &new, STATE_DONE);
3639         spin_unlock(&btv->s_lock);
3640 }
3641
3642 static void
3643 bttv_irq_switch_vbi(struct bttv *btv)
3644 {
3645         struct bttv_buffer *new = NULL;
3646         struct bttv_buffer *old;
3647         u32 rc;
3648
3649         spin_lock(&btv->s_lock);
3650
3651         if (!list_empty(&btv->vcapture))
3652                 new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3653         old = btv->cvbi;
3654
3655         rc = btread(BT848_RISC_COUNT);
3656         if (NULL != old && (is_active(&old->top,    rc) ||
3657                             is_active(&old->bottom, rc))) {
3658                 btv->framedrop++;
3659                 if (debug_latency)
3660                         bttv_irq_debug_low_latency(btv, rc);
3661                 spin_unlock(&btv->s_lock);
3662                 return;
3663         }
3664
3665         /* switch */
3666         btv->cvbi = new;
3667         btv->loop_irq &= ~4;
3668         bttv_buffer_activate_vbi(btv, new);
3669         bttv_set_dma(btv, 0);
3670
3671         bttv_irq_wakeup_vbi(btv, old, STATE_DONE);
3672         spin_unlock(&btv->s_lock);
3673 }
3674
3675 static irqreturn_t bttv_irq(int irq, void *dev_id, struct pt_regs * regs)
3676 {
3677         u32 stat,astat;
3678         u32 dstat;
3679         int count;
3680         struct bttv *btv;
3681         int handled = 0;
3682
3683         btv=(struct bttv *)dev_id;
3684
3685         if (btv->any_irq)
3686                 handled = bttv_any_irq(&btv->c);
3687
3688         count=0;
3689         while (1) {
3690                 /* get/clear interrupt status bits */
3691                 stat=btread(BT848_INT_STAT);
3692                 astat=stat&btread(BT848_INT_MASK);
3693                 if (!astat)
3694                         break;
3695                 handled = 1;
3696                 btwrite(stat,BT848_INT_STAT);
3697
3698                 /* get device status bits */
3699                 dstat=btread(BT848_DSTATUS);
3700
3701                 if (irq_debug) {
3702                         printk(KERN_DEBUG "bttv%d: irq loop=%d fc=%d "
3703                                "riscs=%x, riscc=%08x, ",
3704                                btv->c.nr, count, btv->field_count,
3705                                stat>>28, btread(BT848_RISC_COUNT));
3706                         bttv_print_irqbits(stat,astat);
3707                         if (stat & BT848_INT_HLOCK)
3708                                 printk("   HLOC => %s", (dstat & BT848_DSTATUS_HLOC)
3709                                        ? "yes" : "no");
3710                         if (stat & BT848_INT_VPRES)
3711                                 printk("   PRES => %s", (dstat & BT848_DSTATUS_PRES)
3712                                        ? "yes" : "no");
3713                         if (stat & BT848_INT_FMTCHG)
3714                                 printk("   NUML => %s", (dstat & BT848_DSTATUS_NUML)
3715                                        ? "625" : "525");
3716                         printk("\n");
3717                 }
3718
3719                 if (astat&BT848_INT_VSYNC)
3720                         btv->field_count++;
3721
3722                 if (astat & BT848_INT_GPINT) {
3723                         wake_up(&btv->gpioq);
3724                         bttv_gpio_irq(&btv->c);
3725                 }
3726
3727                 if (astat & BT848_INT_I2CDONE) {
3728                         btv->i2c_done = stat;
3729                         wake_up(&btv->i2c_queue);
3730                 }
3731
3732                 if ((astat & BT848_INT_RISCI)  &&  (stat & (4<<28)))
3733                         bttv_irq_switch_vbi(btv);
3734
3735                 if ((astat & BT848_INT_RISCI)  &&  (stat & (2<<28)))
3736                         bttv_irq_wakeup_top(btv);
3737
3738                 if ((astat & BT848_INT_RISCI)  &&  (stat & (1<<28)))
3739                         bttv_irq_switch_video(btv);
3740
3741                 if ((astat & BT848_INT_HLOCK)  &&  btv->opt_automute)
3742                         audio_mux(btv, -1);
3743
3744                 if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) {
3745                         printk(KERN_INFO "bttv%d: %s%s @ %08x,",btv->c.nr,
3746                                (astat & BT848_INT_SCERR) ? "SCERR" : "",
3747                                (astat & BT848_INT_OCERR) ? "OCERR" : "",
3748                                btread(BT848_RISC_COUNT));
3749                         bttv_print_irqbits(stat,astat);
3750                         printk("\n");
3751                         if (bttv_debug)
3752                                 bttv_print_riscaddr(btv);
3753                 }
3754                 if (fdsr && astat & BT848_INT_FDSR) {
3755                         printk(KERN_INFO "bttv%d: FDSR @ %08x\n",
3756                                btv->c.nr,btread(BT848_RISC_COUNT));
3757                         if (bttv_debug)
3758                                 bttv_print_riscaddr(btv);
3759                 }
3760
3761                 count++;
3762                 if (count > 4) {
3763
3764                         if (count > 8 || !(astat & BT848_INT_GPINT)) {
3765                                 btwrite(0, BT848_INT_MASK);
3766
3767                                 printk(KERN_ERR
3768                                            "bttv%d: IRQ lockup, cleared int mask [", btv->c.nr);
3769                         } else {
3770                                 printk(KERN_ERR
3771                                            "bttv%d: IRQ lockup, clearing GPINT from int mask [", btv->c.nr);
3772
3773                                 btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT),
3774                                                 BT848_INT_MASK);
3775                         };
3776
3777                         bttv_print_irqbits(stat,astat);
3778
3779                         printk("]\n");
3780                 }
3781         }
3782         btv->irq_total++;
3783         if (handled)
3784                 btv->irq_me++;
3785         return IRQ_RETVAL(handled);
3786 }
3787
3788
3789 /* ----------------------------------------------------------------------- */
3790 /* initialitation                                                          */
3791
3792 static struct video_device *vdev_init(struct bttv *btv,
3793                                       struct video_device *template,
3794                                       char *type)
3795 {
3796         struct video_device *vfd;
3797
3798         vfd = video_device_alloc();
3799         if (NULL == vfd)
3800                 return NULL;
3801         *vfd = *template;
3802         vfd->minor   = -1;
3803         vfd->dev     = &btv->c.pci->dev;
3804         vfd->release = video_device_release;
3805         snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)",
3806                  btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "",
3807                  type, bttv_tvcards[btv->c.type].name);
3808         return vfd;
3809 }
3810
3811 static void bttv_unregister_video(struct bttv *btv)
3812 {
3813         if (btv->video_dev) {
3814                 if (-1 != btv->video_dev->minor)
3815                         video_unregister_device(btv->video_dev);
3816                 else
3817                         video_device_release(btv->video_dev);
3818                 btv->video_dev = NULL;
3819         }
3820         if (btv->vbi_dev) {
3821                 if (-1 != btv->vbi_dev->minor)
3822                         video_unregister_device(btv->vbi_dev);
3823                 else
3824                         video_device_release(btv->vbi_dev);
3825                 btv->vbi_dev = NULL;
3826         }
3827         if (btv->radio_dev) {
3828                 if (-1 != btv->radio_dev->minor)
3829                         video_unregister_device(btv->radio_dev);
3830                 else
3831                         video_device_release(btv->radio_dev);
3832                 btv->radio_dev = NULL;
3833         }
3834 }
3835
3836 /* register video4linux devices */
3837 static int __devinit bttv_register_video(struct bttv *btv)
3838 {
3839         if (no_overlay <= 0) {
3840                 bttv_video_template.type |= VID_TYPE_OVERLAY;
3841         } else {
3842                 printk("bttv: Overlay support disabled.\n");
3843         }
3844
3845         /* video */
3846         btv->video_dev = vdev_init(btv, &bttv_video_template, "video");
3847         if (NULL == btv->video_dev)
3848                 goto err;
3849         if (video_register_device(btv->video_dev,VFL_TYPE_GRABBER,video_nr)<0)
3850                 goto err;
3851         printk(KERN_INFO "bttv%d: registered device video%d\n",
3852                btv->c.nr,btv->video_dev->minor & 0x1f);
3853         video_device_create_file(btv->video_dev, &class_device_attr_card);
3854
3855         /* vbi */
3856         btv->vbi_dev = vdev_init(btv, &bttv_vbi_template, "vbi");
3857         if (NULL == btv->vbi_dev)
3858                 goto err;
3859         if (video_register_device(btv->vbi_dev,VFL_TYPE_VBI,vbi_nr)<0)
3860                 goto err;
3861         printk(KERN_INFO "bttv%d: registered device vbi%d\n",
3862                btv->c.nr,btv->vbi_dev->minor & 0x1f);
3863
3864         if (!btv->has_radio)
3865                 return 0;
3866         /* radio */
3867         btv->radio_dev = vdev_init(btv, &radio_template, "radio");
3868         if (NULL == btv->radio_dev)
3869                 goto err;
3870         if (video_register_device(btv->radio_dev, VFL_TYPE_RADIO,radio_nr)<0)
3871                 goto err;
3872         printk(KERN_INFO "bttv%d: registered device radio%d\n",
3873                btv->c.nr,btv->radio_dev->minor & 0x1f);
3874
3875         /* all done */
3876         return 0;
3877
3878  err:
3879         bttv_unregister_video(btv);
3880         return -1;
3881 }
3882
3883
3884 /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
3885 /* response on cards with no firmware is not enabled by OF */
3886 static void pci_set_command(struct pci_dev *dev)
3887 {
3888 #if defined(__powerpc__)
3889         unsigned int cmd;
3890
3891         pci_read_config_dword(dev, PCI_COMMAND, &cmd);
3892         cmd = (cmd | PCI_COMMAND_MEMORY );
3893         pci_write_config_dword(dev, PCI_COMMAND, cmd);
3894 #endif
3895 }
3896
3897 static int __devinit bttv_probe(struct pci_dev *dev,
3898                                 const struct pci_device_id *pci_id)
3899 {
3900         int result;
3901         unsigned char lat;
3902         struct bttv *btv;
3903
3904         if (bttv_num == BTTV_MAX)
3905                 return -ENOMEM;
3906         printk(KERN_INFO "bttv: Bt8xx card found (%d).\n", bttv_num);
3907         btv=&bttvs[bttv_num];
3908         memset(btv,0,sizeof(*btv));
3909         btv->c.nr  = bttv_num;
3910         sprintf(btv->c.name,"bttv%d",btv->c.nr);
3911
3912         /* initialize structs / fill in defaults */
3913         init_MUTEX(&btv->lock);
3914         init_MUTEX(&btv->reslock);
3915         spin_lock_init(&btv->s_lock);
3916         spin_lock_init(&btv->gpio_lock);
3917         init_waitqueue_head(&btv->gpioq);
3918         init_waitqueue_head(&btv->i2c_queue);
3919         INIT_LIST_HEAD(&btv->c.subs);
3920         INIT_LIST_HEAD(&btv->capture);
3921         INIT_LIST_HEAD(&btv->vcapture);
3922         v4l2_prio_init(&btv->prio);
3923
3924         init_timer(&btv->timeout);
3925         btv->timeout.function = bttv_irq_timeout;
3926         btv->timeout.data     = (unsigned long)btv;
3927
3928         btv->i2c_rc = -1;
3929         btv->tuner_type  = UNSET;
3930         btv->pinnacle_id = UNSET;
3931         btv->new_input   = UNSET;
3932         btv->has_radio=radio[btv->c.nr];
3933
3934         /* pci stuff (init, get irq/mmio, ... */
3935         btv->c.pci = dev;
3936         btv->id  = dev->device;
3937         if (pci_enable_device(dev)) {
3938                 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
3939                        btv->c.nr);
3940                 return -EIO;
3941         }
3942         if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
3943                 printk(KERN_WARNING "bttv%d: No suitable DMA available.\n",
3944                        btv->c.nr);
3945                 return -EIO;
3946         }
3947         if (!request_mem_region(pci_resource_start(dev,0),
3948                                 pci_resource_len(dev,0),
3949                                 btv->c.name)) {
3950                 printk(KERN_WARNING "bttv%d: can't request iomem (0x%lx).\n",
3951                        btv->c.nr, pci_resource_start(dev,0));
3952                 return -EBUSY;
3953         }
3954         pci_set_master(dev);
3955         pci_set_command(dev);
3956         pci_set_drvdata(dev,btv);
3957
3958         pci_read_config_byte(dev, PCI_CLASS_REVISION, &btv->revision);
3959         pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
3960         printk(KERN_INFO "bttv%d: Bt%d (rev %d) at %s, ",
3961                bttv_num,btv->id, btv->revision, pci_name(dev));
3962         printk("irq: %d, latency: %d, mmio: 0x%lx\n",
3963                btv->c.pci->irq, lat, pci_resource_start(dev,0));
3964         schedule();
3965
3966         btv->bt848_mmio=ioremap(pci_resource_start(dev,0), 0x1000);
3967         if (NULL == ioremap(pci_resource_start(dev,0), 0x1000)) {
3968                 printk("bttv%d: ioremap() failed\n", btv->c.nr);
3969                 result = -EIO;
3970                 goto fail1;
3971         }
3972
3973         /* identify card */
3974         bttv_idcard(btv);
3975
3976         /* disable irqs, register irq handler */
3977         btwrite(0, BT848_INT_MASK);
3978         result = request_irq(btv->c.pci->irq, bttv_irq,
3979                              SA_SHIRQ | SA_INTERRUPT,btv->c.name,(void *)btv);
3980         if (result < 0) {
3981                 printk(KERN_ERR "bttv%d: can't get IRQ %d\n",
3982                        bttv_num,btv->c.pci->irq);
3983                 goto fail1;
3984         }
3985
3986         if (0 != bttv_handle_chipset(btv)) {
3987                 result = -EIO;
3988                 goto fail2;
3989         }
3990
3991         /* init options from insmod args */
3992         btv->opt_combfilter = combfilter;
3993         btv->opt_lumafilter = lumafilter;
3994         btv->opt_automute   = automute;
3995         btv->opt_chroma_agc = chroma_agc;
3996         btv->opt_adc_crush  = adc_crush;
3997         btv->opt_vcr_hack   = vcr_hack;
3998         btv->opt_whitecrush_upper  = whitecrush_upper;
3999         btv->opt_whitecrush_lower  = whitecrush_lower;
4000         btv->opt_uv_ratio   = uv_ratio;
4001         btv->opt_full_luma_range   = full_luma_range;
4002         btv->opt_coring     = coring;
4003
4004         /* fill struct bttv with some useful defaults */
4005         btv->init.btv         = btv;
4006         btv->init.ov.w.width  = 320;
4007         btv->init.ov.w.height = 240;
4008         btv->init.fmt         = format_by_palette(VIDEO_PALETTE_RGB24);
4009         btv->init.width       = 320;
4010         btv->init.height      = 240;
4011         btv->init.lines       = 16;
4012         btv->input = 0;
4013
4014         /* initialize hardware */
4015         if (bttv_gpio)
4016                 bttv_gpio_tracking(btv,"pre-init");
4017
4018         bttv_risc_init_main(btv);
4019         init_bt848(btv);
4020
4021         /* gpio */
4022         btwrite(0x00, BT848_GPIO_REG_INP);
4023         btwrite(0x00, BT848_GPIO_OUT_EN);
4024         if (bttv_verbose)
4025                 bttv_gpio_tracking(btv,"init");
4026
4027         /* needs to be done before i2c is registered */
4028         bttv_init_card1(btv);
4029
4030         /* register i2c + gpio */
4031         init_bttv_i2c(btv);
4032
4033         /* some card-specific stuff (needs working i2c) */
4034         bttv_init_card2(btv);
4035         init_irqreg(btv);
4036
4037         /* register video4linux + input */
4038         if (!bttv_tvcards[btv->c.type].no_video) {
4039                 bttv_register_video(btv);
4040                 bt848_bright(btv,32768);
4041                 bt848_contrast(btv,32768);
4042                 bt848_hue(btv,32768);
4043                 bt848_sat(btv,32768);
4044                 audio_mux(btv,AUDIO_MUTE);
4045                 set_input(btv,0);
4046         }
4047
4048         /* add subdevices */
4049         if (btv->has_remote)
4050                 bttv_sub_add_device(&btv->c, "remote");
4051         if (bttv_tvcards[btv->c.type].has_dvb)
4052                 bttv_sub_add_device(&btv->c, "dvb");
4053
4054         /* everything is fine */
4055         bttv_num++;
4056         return 0;
4057
4058  fail2:
4059         free_irq(btv->c.pci->irq,btv);
4060
4061  fail1:
4062         if (btv->bt848_mmio)
4063                 iounmap(btv->bt848_mmio);
4064         release_mem_region(pci_resource_start(btv->c.pci,0),
4065                            pci_resource_len(btv->c.pci,0));
4066         pci_set_drvdata(dev,NULL);
4067         return result;
4068 }
4069
4070 static void __devexit bttv_remove(struct pci_dev *pci_dev)
4071 {
4072         struct bttv *btv = pci_get_drvdata(pci_dev);
4073
4074         if (bttv_verbose)
4075                 printk("bttv%d: unloading\n",btv->c.nr);
4076
4077         /* shutdown everything (DMA+IRQs) */
4078         btand(~15, BT848_GPIO_DMA_CTL);
4079         btwrite(0, BT848_INT_MASK);
4080         btwrite(~0x0, BT848_INT_STAT);
4081         btwrite(0x0, BT848_GPIO_OUT_EN);
4082         if (bttv_gpio)
4083                 bttv_gpio_tracking(btv,"cleanup");
4084
4085         /* tell gpio modules we are leaving ... */
4086         btv->shutdown=1;
4087         wake_up(&btv->gpioq);
4088         bttv_sub_del_devices(&btv->c);
4089
4090         /* unregister i2c_bus + input */
4091         fini_bttv_i2c(btv);
4092
4093         /* unregister video4linux */
4094         bttv_unregister_video(btv);
4095
4096         /* free allocated memory */
4097         btcx_riscmem_free(btv->c.pci,&btv->main);
4098
4099         /* free ressources */
4100         free_irq(btv->c.pci->irq,btv);
4101         iounmap(btv->bt848_mmio);
4102         release_mem_region(pci_resource_start(btv->c.pci,0),
4103                            pci_resource_len(btv->c.pci,0));
4104
4105         pci_set_drvdata(pci_dev, NULL);
4106         return;
4107 }
4108
4109 static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state)
4110 {
4111         struct bttv *btv = pci_get_drvdata(pci_dev);
4112         struct bttv_buffer_set idle;
4113         unsigned long flags;
4114
4115         dprintk("bttv%d: suspend %d\n", btv->c.nr, state.event);
4116
4117         /* stop dma + irqs */
4118         spin_lock_irqsave(&btv->s_lock,flags);
4119         memset(&idle, 0, sizeof(idle));
4120         btv->state.video = btv->curr;
4121         btv->state.vbi   = btv->cvbi;
4122         btv->state.loop_irq = btv->loop_irq;
4123         btv->curr = idle;
4124         btv->loop_irq = 0;
4125         bttv_buffer_activate_video(btv, &idle);
4126         bttv_buffer_activate_vbi(btv, NULL);
4127         bttv_set_dma(btv, 0);
4128         btwrite(0, BT848_INT_MASK);
4129         spin_unlock_irqrestore(&btv->s_lock,flags);
4130
4131         /* save bt878 state */
4132         btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN);
4133         btv->state.gpio_data   = gpio_read();
4134
4135         /* save pci state */
4136         pci_save_state(pci_dev);
4137         if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
4138                 pci_disable_device(pci_dev);
4139                 btv->state.disabled = 1;
4140         }
4141         return 0;
4142 }
4143
4144 static int bttv_resume(struct pci_dev *pci_dev)
4145 {
4146         struct bttv *btv = pci_get_drvdata(pci_dev);
4147         unsigned long flags;
4148         int err;
4149
4150         dprintk("bttv%d: resume\n", btv->c.nr);
4151
4152         /* restore pci state */
4153         if (btv->state.disabled) {
4154                 err=pci_enable_device(pci_dev);
4155                 if (err) {
4156                         printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4157                                                                 btv->c.nr);
4158                         return err;
4159                 }
4160                 btv->state.disabled = 0;
4161         }
4162         err=pci_set_power_state(pci_dev, PCI_D0);
4163         if (err) {
4164                 pci_disable_device(pci_dev);
4165                 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4166                                                         btv->c.nr);
4167                 btv->state.disabled = 1;
4168                 return err;
4169         }
4170
4171         pci_restore_state(pci_dev);
4172
4173         /* restore bt878 state */
4174         bttv_reinit_bt848(btv);
4175         gpio_inout(0xffffff, btv->state.gpio_enable);
4176         gpio_write(btv->state.gpio_data);
4177
4178         /* restart dma */
4179         spin_lock_irqsave(&btv->s_lock,flags);
4180         btv->curr = btv->state.video;
4181         btv->cvbi = btv->state.vbi;
4182         btv->loop_irq = btv->state.loop_irq;
4183         bttv_buffer_activate_video(btv, &btv->curr);
4184         bttv_buffer_activate_vbi(btv, btv->cvbi);
4185         bttv_set_dma(btv, 0);
4186         spin_unlock_irqrestore(&btv->s_lock,flags);
4187         return 0;
4188 }
4189
4190 static struct pci_device_id bttv_pci_tbl[] = {
4191         {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT848,
4192          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4193         {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT849,
4194          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4195         {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT878,
4196          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4197         {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT879,
4198          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4199         {0,}
4200 };
4201
4202 MODULE_DEVICE_TABLE(pci, bttv_pci_tbl);
4203
4204 static struct pci_driver bttv_pci_driver = {
4205         .name     = "bttv",
4206         .id_table = bttv_pci_tbl,
4207         .probe    = bttv_probe,
4208         .remove   = __devexit_p(bttv_remove),
4209         .suspend  = bttv_suspend,
4210         .resume   = bttv_resume,
4211 };
4212
4213 static int bttv_init_module(void)
4214 {
4215         bttv_num = 0;
4216
4217         printk(KERN_INFO "bttv: driver version %d.%d.%d loaded\n",
4218                (BTTV_VERSION_CODE >> 16) & 0xff,
4219                (BTTV_VERSION_CODE >> 8) & 0xff,
4220                BTTV_VERSION_CODE & 0xff);
4221 #ifdef SNAPSHOT
4222         printk(KERN_INFO "bttv: snapshot date %04d-%02d-%02d\n",
4223                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
4224 #endif
4225         if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
4226                 gbuffers = 2;
4227         if (gbufsize < 0 || gbufsize > BTTV_MAX_FBUF)
4228                 gbufsize = BTTV_MAX_FBUF;
4229         gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
4230         if (bttv_verbose)
4231                 printk(KERN_INFO "bttv: using %d buffers with %dk (%d pages) each for capture\n",
4232                        gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT);
4233
4234         bttv_check_chipset();
4235
4236         bus_register(&bttv_sub_bus_type);
4237         return pci_module_init(&bttv_pci_driver);
4238 }
4239
4240 static void bttv_cleanup_module(void)
4241 {
4242         pci_unregister_driver(&bttv_pci_driver);
4243         bus_unregister(&bttv_sub_bus_type);
4244         return;
4245 }
4246
4247 module_init(bttv_init_module);
4248 module_exit(bttv_cleanup_module);
4249
4250 /*
4251  * Local variables:
4252  * c-basic-offset: 8
4253  * End:
4254  */