drivers/media/video/bt8xx/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 "bttvp.h"
  38 #include <media/v4l2-common.h>
  39 #include <media/tvaudio.h>
  40 #include <media/msp3400.h>
  41
  42 #include <linux/dma-mapping.h>
  43
  44 #include <asm/io.h>
  45 #include <asm/byteorder.h>
  46
  47 #include <media/rds.h>
  48
  49
  50 unsigned int bttv_num;                  /* number of Bt848s in use */
  51 struct bttv bttvs[BTTV_MAX];
  52
  53 unsigned int bttv_debug;
  54 unsigned int bttv_verbose = 1;
  55 unsigned int bttv_gpio;
  56
  57 /* config variables */
  58 #ifdef __BIG_ENDIAN
  59 static unsigned int bigendian=1;
  60 #else
  61 static unsigned int bigendian;
  62 #endif
  63 static unsigned int radio[BTTV_MAX];
  64 static unsigned int irq_debug;
  65 static unsigned int gbuffers = 8;
  66 static unsigned int gbufsize = 0x208000;
  67
  68 static int video_nr = -1;
  69 static int radio_nr = -1;
  70 static int vbi_nr = -1;
  71 static int debug_latency;
  72
  73 static unsigned int fdsr;
  74
  75 /* options */
  76 static unsigned int combfilter;
  77 static unsigned int lumafilter;
  78 static unsigned int automute    = 1;
  79 static unsigned int chroma_agc;
  80 static unsigned int adc_crush   = 1;
  81 static unsigned int whitecrush_upper = 0xCF;
  82 static unsigned int whitecrush_lower = 0x7F;
  83 static unsigned int vcr_hack;
  84 static unsigned int irq_iswitch;
  85 static unsigned int uv_ratio    = 50;
  86 static unsigned int full_luma_range;
  87 static unsigned int coring;
  88 extern int no_overlay;
  89
  90 /* API features (turn on/off stuff for testing) */
  91 static unsigned int v4l2        = 1;
  92
  93 /* insmod args */
  94 module_param(bttv_verbose,      int, 0644);
  95 module_param(bttv_gpio,         int, 0644);
  96 module_param(bttv_debug,        int, 0644);
  97 module_param(irq_debug,         int, 0644);
  98 module_param(debug_latency,     int, 0644);
  99
 100 module_param(fdsr,              int, 0444);
 101 module_param(video_nr,          int, 0444);
 102 module_param(radio_nr,          int, 0444);
 103 module_param(vbi_nr,            int, 0444);
 104 module_param(gbuffers,          int, 0444);
 105 module_param(gbufsize,          int, 0444);
 106
 107 module_param(v4l2,              int, 0644);
 108 module_param(bigendian,         int, 0644);
 109 module_param(irq_iswitch,       int, 0644);
 110 module_param(combfilter,        int, 0444);
 111 module_param(lumafilter,        int, 0444);
 112 module_param(automute,          int, 0444);
 113 module_param(chroma_agc,        int, 0444);
 114 module_param(adc_crush,         int, 0444);
 115 module_param(whitecrush_upper,  int, 0444);
 116 module_param(whitecrush_lower,  int, 0444);
 117 module_param(vcr_hack,          int, 0444);
 118 module_param(uv_ratio,          int, 0444);
 119 module_param(full_luma_range,   int, 0444);
 120 module_param(coring,            int, 0444);
 121
 122 module_param_array(radio, int, NULL, 0444);
 123
 124 MODULE_PARM_DESC(radio,"The TV card supports radio, default is 0 (no)");
 125 MODULE_PARM_DESC(bigendian,"byte order of the framebuffer, default is native endian");
 126 MODULE_PARM_DESC(bttv_verbose,"verbose startup messages, default is 1 (yes)");
 127 MODULE_PARM_DESC(bttv_gpio,"log gpio changes, default is 0 (no)");
 128 MODULE_PARM_DESC(bttv_debug,"debug messages, default is 0 (no)");
 129 MODULE_PARM_DESC(irq_debug,"irq handler debug messages, default is 0 (no)");
 130 MODULE_PARM_DESC(gbuffers,"number of capture buffers. range 2-32, default 8");
 131 MODULE_PARM_DESC(gbufsize,"size of the capture buffers, default is 0x208000");
 132 MODULE_PARM_DESC(automute,"mute audio on bad/missing video signal, default is 1 (yes)");
 133 MODULE_PARM_DESC(chroma_agc,"enables the AGC of chroma signal, default is 0 (no)");
 134 MODULE_PARM_DESC(adc_crush,"enables the luminance ADC crush, default is 1 (yes)");
 135 MODULE_PARM_DESC(whitecrush_upper,"sets the white crush upper value, default is 207");
 136 MODULE_PARM_DESC(whitecrush_lower,"sets the white crush lower value, default is 127");
 137 MODULE_PARM_DESC(vcr_hack,"enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)");
 138 MODULE_PARM_DESC(irq_iswitch,"switch inputs in irq handler");
 139 MODULE_PARM_DESC(uv_ratio,"ratio between u and v gains, default is 50");
 140 MODULE_PARM_DESC(full_luma_range,"use the full luma range, default is 0 (no)");
 141 MODULE_PARM_DESC(coring,"set the luma coring level, default is 0 (no)");
 142
 143 MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards");
 144 MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
 145 MODULE_LICENSE("GPL");
 146
 147 /* ----------------------------------------------------------------------- */
 148 /* sysfs                                                                   */
 149
 150 static ssize_t show_card(struct class_device *cd, char *buf)
 151 {
 152         struct video_device *vfd = to_video_device(cd);
 153         struct bttv *btv = dev_get_drvdata(vfd->dev);
 154         return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET);
 155 }
 156 static CLASS_DEVICE_ATTR(card, S_IRUGO, show_card, NULL);
 157
 158 /* ----------------------------------------------------------------------- */
 159 /* static data                                                             */
 160
 161 /* special timing tables from conexant... */
 162 static u8 SRAM_Table[][60] =
 163 {
 164         /* PAL digital input over GPIO[7:0] */
 165         {
 166                 45, // 45 bytes following
 167                 0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16,
 168                 0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00,
 169                 0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00,
 170                 0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37,
 171                 0x37,0x00,0xAF,0x21,0x00
 172         },
 173         /* NTSC digital input over GPIO[7:0] */
 174         {
 175                 51, // 51 bytes following
 176                 0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06,
 177                 0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00,
 178                 0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07,
 179                 0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6,
 180                 0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21,
 181                 0x00,
 182         },
 183         // TGB_NTSC392 // quartzsight
 184         // This table has been modified to be used for Fusion Rev D
 185         {
 186                 0x2A, // size of table = 42
 187                 0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24,
 188                 0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10,
 189                 0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00,
 190                 0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3,
 191                 0x20, 0x00
 192         }
 193 };
 194
 195 const struct bttv_tvnorm bttv_tvnorms[] = {
 196         /* PAL-BDGHI */
 197         /* max. active video is actually 922, but 924 is divisible by 4 and 3! */
 198         /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
 199         {
 200                 .v4l2_id        = V4L2_STD_PAL,
 201                 .name           = "PAL",
 202                 .Fsc            = 35468950,
 203                 .swidth         = 924,
 204                 .sheight        = 576,
 205                 .totalwidth     = 1135,
 206                 .adelay         = 0x7f,
 207                 .bdelay         = 0x72,
 208                 .iform          = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
 209                 .scaledtwidth   = 1135,
 210                 .hdelayx1       = 186,
 211                 .hactivex1      = 924,
 212                 .vdelay         = 0x20,
 213                 .vbipack        = 255,
 214                 .sram           = 0,
 215                 /* ITU-R frame line number of the first VBI line
 216                    we can capture, of the first and second field. */
 217                 .vbistart       = { 7,320 },
 218         },{
 219                 .v4l2_id        = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
 220                 .name           = "NTSC",
 221                 .Fsc            = 28636363,
 222                 .swidth         = 768,
 223                 .sheight        = 480,
 224                 .totalwidth     = 910,
 225                 .adelay         = 0x68,
 226                 .bdelay         = 0x5d,
 227                 .iform          = (BT848_IFORM_NTSC|BT848_IFORM_XT0),
 228                 .scaledtwidth   = 910,
 229                 .hdelayx1       = 128,
 230                 .hactivex1      = 910,
 231                 .vdelay         = 0x1a,
 232                 .vbipack        = 144,
 233                 .sram           = 1,
 234                 .vbistart       = { 10, 273 },
 235         },{
 236                 .v4l2_id        = V4L2_STD_SECAM,
 237                 .name           = "SECAM",
 238                 .Fsc            = 35468950,
 239                 .swidth         = 924,
 240                 .sheight        = 576,
 241                 .totalwidth     = 1135,
 242                 .adelay         = 0x7f,
 243                 .bdelay         = 0xb0,
 244                 .iform          = (BT848_IFORM_SECAM|BT848_IFORM_XT1),
 245                 .scaledtwidth   = 1135,
 246                 .hdelayx1       = 186,
 247                 .hactivex1      = 922,
 248                 .vdelay         = 0x20,
 249                 .vbipack        = 255,
 250                 .sram           = 0, /* like PAL, correct? */
 251                 .vbistart       = { 7, 320 },
 252         },{
 253                 .v4l2_id        = V4L2_STD_PAL_Nc,
 254                 .name           = "PAL-Nc",
 255                 .Fsc            = 28636363,
 256                 .swidth         = 640,
 257                 .sheight        = 576,
 258                 .totalwidth     = 910,
 259                 .adelay         = 0x68,
 260                 .bdelay         = 0x5d,
 261                 .iform          = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0),
 262                 .scaledtwidth   = 780,
 263                 .hdelayx1       = 130,
 264                 .hactivex1      = 734,
 265                 .vdelay         = 0x1a,
 266                 .vbipack        = 144,
 267                 .sram           = -1,
 268                 .vbistart       = { 7, 320 },
 269         },{
 270                 .v4l2_id        = V4L2_STD_PAL_M,
 271                 .name           = "PAL-M",
 272                 .Fsc            = 28636363,
 273                 .swidth         = 640,
 274                 .sheight        = 480,
 275                 .totalwidth     = 910,
 276                 .adelay         = 0x68,
 277                 .bdelay         = 0x5d,
 278                 .iform          = (BT848_IFORM_PAL_M|BT848_IFORM_XT0),
 279                 .scaledtwidth   = 780,
 280                 .hdelayx1       = 135,
 281                 .hactivex1      = 754,
 282                 .vdelay         = 0x1a,
 283                 .vbipack        = 144,
 284                 .sram           = -1,
 285                 .vbistart       = { 10, 273 },
 286         },{
 287                 .v4l2_id        = V4L2_STD_PAL_N,
 288                 .name           = "PAL-N",
 289                 .Fsc            = 35468950,
 290                 .swidth         = 768,
 291                 .sheight        = 576,
 292                 .totalwidth     = 1135,
 293                 .adelay         = 0x7f,
 294                 .bdelay         = 0x72,
 295                 .iform          = (BT848_IFORM_PAL_N|BT848_IFORM_XT1),
 296                 .scaledtwidth   = 944,
 297                 .hdelayx1       = 186,
 298                 .hactivex1      = 922,
 299                 .vdelay         = 0x20,
 300                 .vbipack        = 144,
 301                 .sram           = -1,
 302                 .vbistart       = { 7, 320},
 303         },{
 304                 .v4l2_id        = V4L2_STD_NTSC_M_JP,
 305                 .name           = "NTSC-JP",
 306                 .Fsc            = 28636363,
 307                 .swidth         = 640,
 308                 .sheight        = 480,
 309                 .totalwidth     = 910,
 310                 .adelay         = 0x68,
 311                 .bdelay         = 0x5d,
 312                 .iform          = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0),
 313                 .scaledtwidth   = 780,
 314                 .hdelayx1       = 135,
 315                 .hactivex1      = 754,
 316                 .vdelay         = 0x16,
 317                 .vbipack        = 144,
 318                 .sram           = -1,
 319                 .vbistart       = {10, 273},
 320         },{
 321                 /* that one hopefully works with the strange timing
 322                  * which video recorders produce when playing a NTSC
 323                  * tape on a PAL TV ... */
 324                 .v4l2_id        = V4L2_STD_PAL_60,
 325                 .name           = "PAL-60",
 326                 .Fsc            = 35468950,
 327                 .swidth         = 924,
 328                 .sheight        = 480,
 329                 .totalwidth     = 1135,
 330                 .adelay         = 0x7f,
 331                 .bdelay         = 0x72,
 332                 .iform          = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
 333                 .scaledtwidth   = 1135,
 334                 .hdelayx1       = 186,
 335                 .hactivex1      = 924,
 336                 .vdelay         = 0x1a,
 337                 .vbipack        = 255,
 338                 .vtotal         = 524,
 339                 .sram           = -1,
 340                 .vbistart       = { 10, 273 },
 341         }
 342 };
 343 static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms);
 344
 345 /* ----------------------------------------------------------------------- */
 346 /* bttv format list
 347    packed pixel formats must come first */
 348 static const struct bttv_format bttv_formats[] = {
 349         {
 350                 .name     = "8 bpp, gray",
 351                 .palette  = VIDEO_PALETTE_GREY,
 352                 .fourcc   = V4L2_PIX_FMT_GREY,
 353                 .btformat = BT848_COLOR_FMT_Y8,
 354                 .depth    = 8,
 355                 .flags    = FORMAT_FLAGS_PACKED,
 356         },{
 357                 .name     = "8 bpp, dithered color",
 358                 .palette  = VIDEO_PALETTE_HI240,
 359                 .fourcc   = V4L2_PIX_FMT_HI240,
 360                 .btformat = BT848_COLOR_FMT_RGB8,
 361                 .depth    = 8,
 362                 .flags    = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER,
 363         },{
 364                 .name     = "15 bpp RGB, le",
 365                 .palette  = VIDEO_PALETTE_RGB555,
 366                 .fourcc   = V4L2_PIX_FMT_RGB555,
 367                 .btformat = BT848_COLOR_FMT_RGB15,
 368                 .depth    = 16,
 369                 .flags    = FORMAT_FLAGS_PACKED,
 370         },{
 371                 .name     = "15 bpp RGB, be",
 372                 .palette  = -1,
 373                 .fourcc   = V4L2_PIX_FMT_RGB555X,
 374                 .btformat = BT848_COLOR_FMT_RGB15,
 375                 .btswap   = 0x03, /* byteswap */
 376                 .depth    = 16,
 377                 .flags    = FORMAT_FLAGS_PACKED,
 378         },{
 379                 .name     = "16 bpp RGB, le",
 380                 .palette  = VIDEO_PALETTE_RGB565,
 381                 .fourcc   = V4L2_PIX_FMT_RGB565,
 382                 .btformat = BT848_COLOR_FMT_RGB16,
 383                 .depth    = 16,
 384                 .flags    = FORMAT_FLAGS_PACKED,
 385         },{
 386                 .name     = "16 bpp RGB, be",
 387                 .palette  = -1,
 388                 .fourcc   = V4L2_PIX_FMT_RGB565X,
 389                 .btformat = BT848_COLOR_FMT_RGB16,
 390                 .btswap   = 0x03, /* byteswap */
 391                 .depth    = 16,
 392                 .flags    = FORMAT_FLAGS_PACKED,
 393         },{
 394                 .name     = "24 bpp RGB, le",
 395                 .palette  = VIDEO_PALETTE_RGB24,
 396                 .fourcc   = V4L2_PIX_FMT_BGR24,
 397                 .btformat = BT848_COLOR_FMT_RGB24,
 398                 .depth    = 24,
 399                 .flags    = FORMAT_FLAGS_PACKED,
 400         },{
 401                 .name     = "32 bpp RGB, le",
 402                 .palette  = VIDEO_PALETTE_RGB32,
 403                 .fourcc   = V4L2_PIX_FMT_BGR32,
 404                 .btformat = BT848_COLOR_FMT_RGB32,
 405                 .depth    = 32,
 406                 .flags    = FORMAT_FLAGS_PACKED,
 407         },{
 408                 .name     = "32 bpp RGB, be",
 409                 .palette  = -1,
 410                 .fourcc   = V4L2_PIX_FMT_RGB32,
 411                 .btformat = BT848_COLOR_FMT_RGB32,
 412                 .btswap   = 0x0f, /* byte+word swap */
 413                 .depth    = 32,
 414                 .flags    = FORMAT_FLAGS_PACKED,
 415         },{
 416                 .name     = "4:2:2, packed, YUYV",
 417                 .palette  = VIDEO_PALETTE_YUV422,
 418                 .fourcc   = V4L2_PIX_FMT_YUYV,
 419                 .btformat = BT848_COLOR_FMT_YUY2,
 420                 .depth    = 16,
 421                 .flags    = FORMAT_FLAGS_PACKED,
 422         },{
 423                 .name     = "4:2:2, packed, YUYV",
 424                 .palette  = VIDEO_PALETTE_YUYV,
 425                 .fourcc   = V4L2_PIX_FMT_YUYV,
 426                 .btformat = BT848_COLOR_FMT_YUY2,
 427                 .depth    = 16,
 428                 .flags    = FORMAT_FLAGS_PACKED,
 429         },{
 430                 .name     = "4:2:2, packed, UYVY",
 431                 .palette  = VIDEO_PALETTE_UYVY,
 432                 .fourcc   = V4L2_PIX_FMT_UYVY,
 433                 .btformat = BT848_COLOR_FMT_YUY2,
 434                 .btswap   = 0x03, /* byteswap */
 435                 .depth    = 16,
 436                 .flags    = FORMAT_FLAGS_PACKED,
 437         },{
 438                 .name     = "4:2:2, planar, Y-Cb-Cr",
 439                 .palette  = VIDEO_PALETTE_YUV422P,
 440                 .fourcc   = V4L2_PIX_FMT_YUV422P,
 441                 .btformat = BT848_COLOR_FMT_YCrCb422,
 442                 .depth    = 16,
 443                 .flags    = FORMAT_FLAGS_PLANAR,
 444                 .hshift   = 1,
 445                 .vshift   = 0,
 446         },{
 447                 .name     = "4:2:0, planar, Y-Cb-Cr",
 448                 .palette  = VIDEO_PALETTE_YUV420P,
 449                 .fourcc   = V4L2_PIX_FMT_YUV420,
 450                 .btformat = BT848_COLOR_FMT_YCrCb422,
 451                 .depth    = 12,
 452                 .flags    = FORMAT_FLAGS_PLANAR,
 453                 .hshift   = 1,
 454                 .vshift   = 1,
 455         },{
 456                 .name     = "4:2:0, planar, Y-Cr-Cb",
 457                 .palette  = -1,
 458                 .fourcc   = V4L2_PIX_FMT_YVU420,
 459                 .btformat = BT848_COLOR_FMT_YCrCb422,
 460                 .depth    = 12,
 461                 .flags    = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
 462                 .hshift   = 1,
 463                 .vshift   = 1,
 464         },{
 465                 .name     = "4:1:1, planar, Y-Cb-Cr",
 466                 .palette  = VIDEO_PALETTE_YUV411P,
 467                 .fourcc   = V4L2_PIX_FMT_YUV411P,
 468                 .btformat = BT848_COLOR_FMT_YCrCb411,
 469                 .depth    = 12,
 470                 .flags    = FORMAT_FLAGS_PLANAR,
 471                 .hshift   = 2,
 472                 .vshift   = 0,
 473         },{
 474                 .name     = "4:1:0, planar, Y-Cb-Cr",
 475                 .palette  = VIDEO_PALETTE_YUV410P,
 476                 .fourcc   = V4L2_PIX_FMT_YUV410,
 477                 .btformat = BT848_COLOR_FMT_YCrCb411,
 478                 .depth    = 9,
 479                 .flags    = FORMAT_FLAGS_PLANAR,
 480                 .hshift   = 2,
 481                 .vshift   = 2,
 482         },{
 483                 .name     = "4:1:0, planar, Y-Cr-Cb",
 484                 .palette  = -1,
 485                 .fourcc   = V4L2_PIX_FMT_YVU410,
 486                 .btformat = BT848_COLOR_FMT_YCrCb411,
 487                 .depth    = 9,
 488                 .flags    = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
 489                 .hshift   = 2,
 490                 .vshift   = 2,
 491         },{
 492                 .name     = "raw scanlines",
 493                 .palette  = VIDEO_PALETTE_RAW,
 494                 .fourcc   = -1,
 495                 .btformat = BT848_COLOR_FMT_RAW,
 496                 .depth    = 8,
 497                 .flags    = FORMAT_FLAGS_RAW,
 498         }
 499 };
 500 static const unsigned int BTTV_FORMATS = ARRAY_SIZE(bttv_formats);
 501
 502 /* ----------------------------------------------------------------------- */
 503
 504 #define V4L2_CID_PRIVATE_CHROMA_AGC  (V4L2_CID_PRIVATE_BASE + 0)
 505 #define V4L2_CID_PRIVATE_COMBFILTER  (V4L2_CID_PRIVATE_BASE + 1)
 506 #define V4L2_CID_PRIVATE_AUTOMUTE    (V4L2_CID_PRIVATE_BASE + 2)
 507 #define V4L2_CID_PRIVATE_LUMAFILTER  (V4L2_CID_PRIVATE_BASE + 3)
 508 #define V4L2_CID_PRIVATE_AGC_CRUSH   (V4L2_CID_PRIVATE_BASE + 4)
 509 #define V4L2_CID_PRIVATE_VCR_HACK    (V4L2_CID_PRIVATE_BASE + 5)
 510 #define V4L2_CID_PRIVATE_WHITECRUSH_UPPER   (V4L2_CID_PRIVATE_BASE + 6)
 511 #define V4L2_CID_PRIVATE_WHITECRUSH_LOWER   (V4L2_CID_PRIVATE_BASE + 7)
 512 #define V4L2_CID_PRIVATE_UV_RATIO    (V4L2_CID_PRIVATE_BASE + 8)
 513 #define V4L2_CID_PRIVATE_FULL_LUMA_RANGE    (V4L2_CID_PRIVATE_BASE + 9)
 514 #define V4L2_CID_PRIVATE_CORING      (V4L2_CID_PRIVATE_BASE + 10)
 515 #define V4L2_CID_PRIVATE_LASTP1      (V4L2_CID_PRIVATE_BASE + 11)
 516
 517 static const struct v4l2_queryctrl no_ctl = {
 518         .name  = "42",
 519         .flags = V4L2_CTRL_FLAG_DISABLED,
 520 };
 521 static const struct v4l2_queryctrl bttv_ctls[] = {
 522         /* --- video --- */
 523         {
 524                 .id            = V4L2_CID_BRIGHTNESS,
 525                 .name          = "Brightness",
 526                 .minimum       = 0,
 527                 .maximum       = 65535,
 528                 .step          = 256,
 529                 .default_value = 32768,
 530                 .type          = V4L2_CTRL_TYPE_INTEGER,
 531         },{
 532                 .id            = V4L2_CID_CONTRAST,
 533                 .name          = "Contrast",
 534                 .minimum       = 0,
 535                 .maximum       = 65535,
 536                 .step          = 128,
 537                 .default_value = 32768,
 538                 .type          = V4L2_CTRL_TYPE_INTEGER,
 539         },{
 540                 .id            = V4L2_CID_SATURATION,
 541                 .name          = "Saturation",
 542                 .minimum       = 0,
 543                 .maximum       = 65535,
 544                 .step          = 128,
 545                 .default_value = 32768,
 546                 .type          = V4L2_CTRL_TYPE_INTEGER,
 547         },{
 548                 .id            = V4L2_CID_HUE,
 549                 .name          = "Hue",
 550                 .minimum       = 0,
 551                 .maximum       = 65535,
 552                 .step          = 256,
 553                 .default_value = 32768,
 554                 .type          = V4L2_CTRL_TYPE_INTEGER,
 555         },
 556         /* --- audio --- */
 557         {
 558                 .id            = V4L2_CID_AUDIO_MUTE,
 559                 .name          = "Mute",
 560                 .minimum       = 0,
 561                 .maximum       = 1,
 562                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 563         },{
 564                 .id            = V4L2_CID_AUDIO_VOLUME,
 565                 .name          = "Volume",
 566                 .minimum       = 0,
 567                 .maximum       = 65535,
 568                 .step          = 65535/100,
 569                 .default_value = 65535,
 570                 .type          = V4L2_CTRL_TYPE_INTEGER,
 571         },{
 572                 .id            = V4L2_CID_AUDIO_BALANCE,
 573                 .name          = "Balance",
 574                 .minimum       = 0,
 575                 .maximum       = 65535,
 576                 .step          = 65535/100,
 577                 .default_value = 32768,
 578                 .type          = V4L2_CTRL_TYPE_INTEGER,
 579         },{
 580                 .id            = V4L2_CID_AUDIO_BASS,
 581                 .name          = "Bass",
 582                 .minimum       = 0,
 583                 .maximum       = 65535,
 584                 .step          = 65535/100,
 585                 .default_value = 32768,
 586                 .type          = V4L2_CTRL_TYPE_INTEGER,
 587         },{
 588                 .id            = V4L2_CID_AUDIO_TREBLE,
 589                 .name          = "Treble",
 590                 .minimum       = 0,
 591                 .maximum       = 65535,
 592                 .step          = 65535/100,
 593                 .default_value = 32768,
 594                 .type          = V4L2_CTRL_TYPE_INTEGER,
 595         },
 596         /* --- private --- */
 597         {
 598                 .id            = V4L2_CID_PRIVATE_CHROMA_AGC,
 599                 .name          = "chroma agc",
 600                 .minimum       = 0,
 601                 .maximum       = 1,
 602                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 603         },{
 604                 .id            = V4L2_CID_PRIVATE_COMBFILTER,
 605                 .name          = "combfilter",
 606                 .minimum       = 0,
 607                 .maximum       = 1,
 608                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 609         },{
 610                 .id            = V4L2_CID_PRIVATE_AUTOMUTE,
 611                 .name          = "automute",
 612                 .minimum       = 0,
 613                 .maximum       = 1,
 614                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 615         },{
 616                 .id            = V4L2_CID_PRIVATE_LUMAFILTER,
 617                 .name          = "luma decimation filter",
 618                 .minimum       = 0,
 619                 .maximum       = 1,
 620                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 621         },{
 622                 .id            = V4L2_CID_PRIVATE_AGC_CRUSH,
 623                 .name          = "agc crush",
 624                 .minimum       = 0,
 625                 .maximum       = 1,
 626                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 627         },{
 628                 .id            = V4L2_CID_PRIVATE_VCR_HACK,
 629                 .name          = "vcr hack",
 630                 .minimum       = 0,
 631                 .maximum       = 1,
 632                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 633         },{
 634                 .id            = V4L2_CID_PRIVATE_WHITECRUSH_UPPER,
 635                 .name          = "whitecrush upper",
 636                 .minimum       = 0,
 637                 .maximum       = 255,
 638                 .step          = 1,
 639                 .default_value = 0xCF,
 640                 .type          = V4L2_CTRL_TYPE_INTEGER,
 641         },{
 642                 .id            = V4L2_CID_PRIVATE_WHITECRUSH_LOWER,
 643                 .name          = "whitecrush lower",
 644                 .minimum       = 0,
 645                 .maximum       = 255,
 646                 .step          = 1,
 647                 .default_value = 0x7F,
 648                 .type          = V4L2_CTRL_TYPE_INTEGER,
 649         },{
 650                 .id            = V4L2_CID_PRIVATE_UV_RATIO,
 651                 .name          = "uv ratio",
 652                 .minimum       = 0,
 653                 .maximum       = 100,
 654                 .step          = 1,
 655                 .default_value = 50,
 656                 .type          = V4L2_CTRL_TYPE_INTEGER,
 657         },{
 658                 .id            = V4L2_CID_PRIVATE_FULL_LUMA_RANGE,
 659                 .name          = "full luma range",
 660                 .minimum       = 0,
 661                 .maximum       = 1,
 662                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 663         },{
 664                 .id            = V4L2_CID_PRIVATE_CORING,
 665                 .name          = "coring",
 666                 .minimum       = 0,
 667                 .maximum       = 3,
 668                 .step          = 1,
 669                 .default_value = 0,
 670                 .type          = V4L2_CTRL_TYPE_INTEGER,
 671         }
 672
 673
 674
 675 };
 676 static const int BTTV_CTLS = ARRAY_SIZE(bttv_ctls);
 677
 678 /* ----------------------------------------------------------------------- */
 679 /* resource management                                                     */
 680
 681 static
 682 int check_alloc_btres(struct bttv *btv, struct bttv_fh *fh, int bit)
 683 {
 684         if (fh->resources & bit)
 685                 /* have it already allocated */
 686                 return 1;
 687
 688         /* is it free? */
 689         mutex_lock(&btv->reslock);
 690         if (btv->resources & bit) {
 691                 /* no, someone else uses it */
 692                 mutex_unlock(&btv->reslock);
 693                 return 0;
 694         }
 695         /* it's free, grab it */
 696         fh->resources  |= bit;
 697         btv->resources |= bit;
 698         mutex_unlock(&btv->reslock);
 699         return 1;
 700 }
 701
 702 static
 703 int check_btres(struct bttv_fh *fh, int bit)
 704 {
 705         return (fh->resources & bit);
 706 }
 707
 708 static
 709 int locked_btres(struct bttv *btv, int bit)
 710 {
 711         return (btv->resources & bit);
 712 }
 713
 714 static
 715 void free_btres(struct bttv *btv, struct bttv_fh *fh, int bits)
 716 {
 717         if ((fh->resources & bits) != bits) {
 718                 /* trying to free ressources not allocated by us ... */
 719                 printk("bttv: BUG! (btres)\n");
 720         }
 721         mutex_lock(&btv->reslock);
 722         fh->resources  &= ~bits;
 723         btv->resources &= ~bits;
 724         mutex_unlock(&btv->reslock);
 725 }
 726
 727 /* ----------------------------------------------------------------------- */
 728 /* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC          */
 729
 730 /* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C
 731    PLL_X = Reference pre-divider (0=1, 1=2)
 732    PLL_C = Post divider (0=6, 1=4)
 733    PLL_I = Integer input
 734    PLL_F = Fractional input
 735
 736    F_input = 28.636363 MHz:
 737    PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0
 738 */
 739
 740 static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout)
 741 {
 742         unsigned char fl, fh, fi;
 743
 744         /* prevent overflows */
 745         fin/=4;
 746         fout/=4;
 747
 748         fout*=12;
 749         fi=fout/fin;
 750
 751         fout=(fout%fin)*256;
 752         fh=fout/fin;
 753
 754         fout=(fout%fin)*256;
 755         fl=fout/fin;
 756
 757         btwrite(fl, BT848_PLL_F_LO);
 758         btwrite(fh, BT848_PLL_F_HI);
 759         btwrite(fi|BT848_PLL_X, BT848_PLL_XCI);
 760 }
 761
 762 static void set_pll(struct bttv *btv)
 763 {
 764         int i;
 765
 766         if (!btv->pll.pll_crystal)
 767                 return;
 768
 769         if (btv->pll.pll_ofreq == btv->pll.pll_current) {
 770                 dprintk("bttv%d: PLL: no change required\n",btv->c.nr);
 771                 return;
 772         }
 773
 774         if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) {
 775                 /* no PLL needed */
 776                 if (btv->pll.pll_current == 0)
 777                         return;
 778                 bttv_printk(KERN_INFO "bttv%d: PLL can sleep, using XTAL (%d).\n",
 779                         btv->c.nr,btv->pll.pll_ifreq);
 780                 btwrite(0x00,BT848_TGCTRL);
 781                 btwrite(0x00,BT848_PLL_XCI);
 782                 btv->pll.pll_current = 0;
 783                 return;
 784         }
 785
 786         bttv_printk(KERN_INFO "bttv%d: PLL: %d => %d ",btv->c.nr,
 787                 btv->pll.pll_ifreq, btv->pll.pll_ofreq);
 788         set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq);
 789
 790         for (i=0; i<10; i++) {
 791                 /*  Let other people run while the PLL stabilizes */
 792                 bttv_printk(".");
 793                 msleep(10);
 794
 795                 if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) {
 796                         btwrite(0,BT848_DSTATUS);
 797                 } else {
 798                         btwrite(0x08,BT848_TGCTRL);
 799                         btv->pll.pll_current = btv->pll.pll_ofreq;
 800                         bttv_printk(" ok\n");
 801                         return;
 802                 }
 803         }
 804         btv->pll.pll_current = -1;
 805         bttv_printk("failed\n");
 806         return;
 807 }
 808
 809 /* used to switch between the bt848's analog/digital video capture modes */
 810 static void bt848A_set_timing(struct bttv *btv)
 811 {
 812         int i, len;
 813         int table_idx = bttv_tvnorms[btv->tvnorm].sram;
 814         int fsc       = bttv_tvnorms[btv->tvnorm].Fsc;
 815
 816         if (UNSET == bttv_tvcards[btv->c.type].muxsel[btv->input]) {
 817                 dprintk("bttv%d: load digital timing table (table_idx=%d)\n",
 818                         btv->c.nr,table_idx);
 819
 820                 /* timing change...reset timing generator address */
 821                 btwrite(0x00, BT848_TGCTRL);
 822                 btwrite(0x02, BT848_TGCTRL);
 823                 btwrite(0x00, BT848_TGCTRL);
 824
 825                 len=SRAM_Table[table_idx][0];
 826                 for(i = 1; i <= len; i++)
 827                         btwrite(SRAM_Table[table_idx][i],BT848_TGLB);
 828                 btv->pll.pll_ofreq = 27000000;
 829
 830                 set_pll(btv);
 831                 btwrite(0x11, BT848_TGCTRL);
 832                 btwrite(0x41, BT848_DVSIF);
 833         } else {
 834                 btv->pll.pll_ofreq = fsc;
 835                 set_pll(btv);
 836                 btwrite(0x0, BT848_DVSIF);
 837         }
 838 }
 839
 840 /* ----------------------------------------------------------------------- */
 841
 842 static void bt848_bright(struct bttv *btv, int bright)
 843 {
 844         int value;
 845
 846         // printk("bttv: set bright: %d\n",bright); // DEBUG
 847         btv->bright = bright;
 848
 849         /* We want -128 to 127 we get 0-65535 */
 850         value = (bright >> 8) - 128;
 851         btwrite(value & 0xff, BT848_BRIGHT);
 852 }
 853
 854 static void bt848_hue(struct bttv *btv, int hue)
 855 {
 856         int value;
 857
 858         btv->hue = hue;
 859
 860         /* -128 to 127 */
 861         value = (hue >> 8) - 128;
 862         btwrite(value & 0xff, BT848_HUE);
 863 }
 864
 865 static void bt848_contrast(struct bttv *btv, int cont)
 866 {
 867         int value,hibit;
 868
 869         btv->contrast = cont;
 870
 871         /* 0-511 */
 872         value = (cont  >> 7);
 873         hibit = (value >> 6) & 4;
 874         btwrite(value & 0xff, BT848_CONTRAST_LO);
 875         btaor(hibit, ~4, BT848_E_CONTROL);
 876         btaor(hibit, ~4, BT848_O_CONTROL);
 877 }
 878
 879 static void bt848_sat(struct bttv *btv, int color)
 880 {
 881         int val_u,val_v,hibits;
 882
 883         btv->saturation = color;
 884
 885         /* 0-511 for the color */
 886         val_u   = ((color * btv->opt_uv_ratio) / 50) >> 7;
 887         val_v   = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254;
 888         hibits  = (val_u >> 7) & 2;
 889         hibits |= (val_v >> 8) & 1;
 890         btwrite(val_u & 0xff, BT848_SAT_U_LO);
 891         btwrite(val_v & 0xff, BT848_SAT_V_LO);
 892         btaor(hibits, ~3, BT848_E_CONTROL);
 893         btaor(hibits, ~3, BT848_O_CONTROL);
 894 }
 895
 896 /* ----------------------------------------------------------------------- */
 897
 898 static int
 899 video_mux(struct bttv *btv, unsigned int input)
 900 {
 901         int mux,mask2;
 902
 903         if (input >= bttv_tvcards[btv->c.type].video_inputs)
 904                 return -EINVAL;
 905
 906         /* needed by RemoteVideo MX */
 907         mask2 = bttv_tvcards[btv->c.type].gpiomask2;
 908         if (mask2)
 909                 gpio_inout(mask2,mask2);
 910
 911         if (input == btv->svhs)  {
 912                 btor(BT848_CONTROL_COMP, BT848_E_CONTROL);
 913                 btor(BT848_CONTROL_COMP, BT848_O_CONTROL);
 914         } else {
 915                 btand(~BT848_CONTROL_COMP, BT848_E_CONTROL);
 916                 btand(~BT848_CONTROL_COMP, BT848_O_CONTROL);
 917         }
 918         mux = bttv_tvcards[btv->c.type].muxsel[input] & 3;
 919         btaor(mux<<5, ~(3<<5), BT848_IFORM);
 920         dprintk(KERN_DEBUG "bttv%d: video mux: input=%d mux=%d\n",
 921                 btv->c.nr,input,mux);
 922
 923         /* card specific hook */
 924         if(bttv_tvcards[btv->c.type].muxsel_hook)
 925                 bttv_tvcards[btv->c.type].muxsel_hook (btv, input);
 926         return 0;
 927 }
 928
 929 static char *audio_modes[] = {
 930         "audio: tuner", "audio: radio", "audio: extern",
 931         "audio: intern", "audio: mute"
 932 };
 933
 934 static int
 935 audio_mux(struct bttv *btv, int input, int mute)
 936 {
 937         int gpio_val, signal;
 938         struct v4l2_control ctrl;
 939         struct i2c_client *c;
 940
 941         gpio_inout(bttv_tvcards[btv->c.type].gpiomask,
 942                    bttv_tvcards[btv->c.type].gpiomask);
 943         signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC;
 944
 945         btv->mute = mute;
 946         btv->audio = input;
 947
 948         /* automute */
 949         mute = mute || (btv->opt_automute && !signal && !btv->radio_user);
 950
 951         if (mute)
 952                 gpio_val = bttv_tvcards[btv->c.type].gpiomute;
 953         else
 954                 gpio_val = bttv_tvcards[btv->c.type].gpiomux[input];
 955
 956         gpio_bits(bttv_tvcards[btv->c.type].gpiomask, gpio_val);
 957         if (bttv_gpio)
 958                 bttv_gpio_tracking(btv, audio_modes[mute ? 4 : input]);
 959         if (in_interrupt())
 960                 return 0;
 961
 962         ctrl.id = V4L2_CID_AUDIO_MUTE;
 963         ctrl.value = btv->mute;
 964         bttv_call_i2c_clients(btv, VIDIOC_S_CTRL, &ctrl);
 965         c = btv->i2c_msp34xx_client;
 966         if (c) {
 967                 struct v4l2_routing route;
 968
 969                 /* Note: the inputs tuner/radio/extern/intern are translated
 970                    to msp routings. This assumes common behavior for all msp3400
 971                    based TV cards. When this assumption fails, then the
 972                    specific MSP routing must be added to the card table.
 973                    For now this is sufficient. */
 974                 switch (input) {
 975                 case TVAUDIO_INPUT_RADIO:
 976                         route.input = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
 977                                     MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
 978                         break;
 979                 case TVAUDIO_INPUT_EXTERN:
 980                         route.input = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1,
 981                                     MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
 982                         break;
 983                 case TVAUDIO_INPUT_INTERN:
 984                         /* Yes, this is the same input as for RADIO. I doubt
 985                            if this is ever used. The only board with an INTERN
 986                            input is the BTTV_BOARD_AVERMEDIA98. I wonder how
 987                            that was tested. My guess is that the whole INTERN
 988                            input does not work. */
 989                         route.input = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
 990                                     MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
 991                         break;
 992                 case TVAUDIO_INPUT_TUNER:
 993                 default:
 994                         route.input = MSP_INPUT_DEFAULT;
 995                         break;
 996                 }
 997                 route.output = MSP_OUTPUT_DEFAULT;
 998                 c->driver->command(c, VIDIOC_INT_S_AUDIO_ROUTING, &route);
 999         }
1000         c = btv->i2c_tvaudio_client;
1001         if (c) {
1002                 struct v4l2_routing route;
1003
1004                 route.input = input;
1005                 route.output = 0;
1006                 c->driver->command(c, VIDIOC_INT_S_AUDIO_ROUTING, &route);
1007         }
1008         return 0;
1009 }
1010
1011 static inline int
1012 audio_mute(struct bttv *btv, int mute)
1013 {
1014         return audio_mux(btv, btv->audio, mute);
1015 }
1016
1017 static inline int
1018 audio_input(struct bttv *btv, int input)
1019 {
1020         return audio_mux(btv, input, btv->mute);
1021 }
1022
1023 static void
1024 i2c_vidiocschan(struct bttv *btv)
1025 {
1026         v4l2_std_id std = bttv_tvnorms[btv->tvnorm].v4l2_id;
1027
1028         bttv_call_i2c_clients(btv, VIDIOC_S_STD, &std);
1029         if (btv->c.type == BTTV_BOARD_VOODOOTV_FM)
1030                 bttv_tda9880_setnorm(btv,btv->tvnorm);
1031 }
1032
1033 static int
1034 set_tvnorm(struct bttv *btv, unsigned int norm)
1035 {
1036         const struct bttv_tvnorm *tvnorm;
1037
1038         if (norm < 0 || norm >= BTTV_TVNORMS)
1039                 return -EINVAL;
1040
1041         btv->tvnorm = norm;
1042         tvnorm = &bttv_tvnorms[norm];
1043
1044         btwrite(tvnorm->adelay, BT848_ADELAY);
1045         btwrite(tvnorm->bdelay, BT848_BDELAY);
1046         btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH),
1047               BT848_IFORM);
1048         btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE);
1049         btwrite(1, BT848_VBI_PACK_DEL);
1050         bt848A_set_timing(btv);
1051
1052         switch (btv->c.type) {
1053         case BTTV_BOARD_VOODOOTV_FM:
1054                 bttv_tda9880_setnorm(btv,norm);
1055                 break;
1056         }
1057         return 0;
1058 }
1059
1060 static void
1061 set_input(struct bttv *btv, unsigned int input)
1062 {
1063         unsigned long flags;
1064
1065         btv->input = input;
1066         if (irq_iswitch) {
1067                 spin_lock_irqsave(&btv->s_lock,flags);
1068                 if (btv->curr.frame_irq) {
1069                         /* active capture -> delayed input switch */
1070                         btv->new_input = input;
1071                 } else {
1072                         video_mux(btv,input);
1073                 }
1074                 spin_unlock_irqrestore(&btv->s_lock,flags);
1075         } else {
1076                 video_mux(btv,input);
1077         }
1078         audio_input(btv,(input == bttv_tvcards[btv->c.type].tuner ?
1079                        TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN));
1080         set_tvnorm(btv,btv->tvnorm);
1081         i2c_vidiocschan(btv);
1082 }
1083
1084 static void init_irqreg(struct bttv *btv)
1085 {
1086         /* clear status */
1087         btwrite(0xfffffUL, BT848_INT_STAT);
1088
1089         if (bttv_tvcards[btv->c.type].no_video) {
1090                 /* i2c only */
1091                 btwrite(BT848_INT_I2CDONE,
1092                         BT848_INT_MASK);
1093         } else {
1094                 /* full video */
1095                 btwrite((btv->triton1)  |
1096                         (btv->gpioirq ? BT848_INT_GPINT : 0) |
1097                         BT848_INT_SCERR |
1098                         (fdsr ? BT848_INT_FDSR : 0) |
1099                         BT848_INT_RISCI|BT848_INT_OCERR|BT848_INT_VPRES|
1100                         BT848_INT_FMTCHG|BT848_INT_HLOCK|
1101                         BT848_INT_I2CDONE,
1102                         BT848_INT_MASK);
1103         }
1104 }
1105
1106 static void init_bt848(struct bttv *btv)
1107 {
1108         int val;
1109
1110         if (bttv_tvcards[btv->c.type].no_video) {
1111                 /* very basic init only */
1112                 init_irqreg(btv);
1113                 return;
1114         }
1115
1116         btwrite(0x00, BT848_CAP_CTL);
1117         btwrite(BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL);
1118         btwrite(BT848_IFORM_XTAUTO | BT848_IFORM_AUTO, BT848_IFORM);
1119
1120         /* set planar and packed mode trigger points and         */
1121         /* set rising edge of inverted GPINTR pin as irq trigger */
1122         btwrite(BT848_GPIO_DMA_CTL_PKTP_32|
1123                 BT848_GPIO_DMA_CTL_PLTP1_16|
1124                 BT848_GPIO_DMA_CTL_PLTP23_16|
1125                 BT848_GPIO_DMA_CTL_GPINTC|
1126                 BT848_GPIO_DMA_CTL_GPINTI,
1127                 BT848_GPIO_DMA_CTL);
1128
1129         val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1130         btwrite(val, BT848_E_SCLOOP);
1131         btwrite(val, BT848_O_SCLOOP);
1132
1133         btwrite(0x20, BT848_E_VSCALE_HI);
1134         btwrite(0x20, BT848_O_VSCALE_HI);
1135         btwrite(BT848_ADC_RESERVED | (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1136                 BT848_ADC);
1137
1138         btwrite(whitecrush_upper, BT848_WC_UP);
1139         btwrite(whitecrush_lower, BT848_WC_DOWN);
1140
1141         if (btv->opt_lumafilter) {
1142                 btwrite(0, BT848_E_CONTROL);
1143                 btwrite(0, BT848_O_CONTROL);
1144         } else {
1145                 btwrite(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1146                 btwrite(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1147         }
1148
1149         bt848_bright(btv,   btv->bright);
1150         bt848_hue(btv,      btv->hue);
1151         bt848_contrast(btv, btv->contrast);
1152         bt848_sat(btv,      btv->saturation);
1153
1154         /* interrupt */
1155         init_irqreg(btv);
1156 }
1157
1158 static void bttv_reinit_bt848(struct bttv *btv)
1159 {
1160         unsigned long flags;
1161
1162         if (bttv_verbose)
1163                 printk(KERN_INFO "bttv%d: reset, reinitialize\n",btv->c.nr);
1164         spin_lock_irqsave(&btv->s_lock,flags);
1165         btv->errors=0;
1166         bttv_set_dma(btv,0);
1167         spin_unlock_irqrestore(&btv->s_lock,flags);
1168
1169         init_bt848(btv);
1170         btv->pll.pll_current = -1;
1171         set_input(btv,btv->input);
1172 }
1173
1174 static int get_control(struct bttv *btv, struct v4l2_control *c)
1175 {
1176         struct video_audio va;
1177         int i;
1178
1179         for (i = 0; i < BTTV_CTLS; i++)
1180                 if (bttv_ctls[i].id == c->id)
1181                         break;
1182         if (i == BTTV_CTLS)
1183                 return -EINVAL;
1184         if (btv->audio_hook && i >= 4 && i <= 8) {
1185                 memset(&va,0,sizeof(va));
1186                 btv->audio_hook(btv,&va,0);
1187                 switch (c->id) {
1188                 case V4L2_CID_AUDIO_MUTE:
1189                         c->value = (VIDEO_AUDIO_MUTE & va.flags) ? 1 : 0;
1190                         break;
1191                 case V4L2_CID_AUDIO_VOLUME:
1192                         c->value = va.volume;
1193                         break;
1194                 case V4L2_CID_AUDIO_BALANCE:
1195                         c->value = va.balance;
1196                         break;
1197                 case V4L2_CID_AUDIO_BASS:
1198                         c->value = va.bass;
1199                         break;
1200                 case V4L2_CID_AUDIO_TREBLE:
1201                         c->value = va.treble;
1202                         break;
1203                 }
1204                 return 0;
1205         }
1206         switch (c->id) {
1207         case V4L2_CID_BRIGHTNESS:
1208                 c->value = btv->bright;
1209                 break;
1210         case V4L2_CID_HUE:
1211                 c->value = btv->hue;
1212                 break;
1213         case V4L2_CID_CONTRAST:
1214                 c->value = btv->contrast;
1215                 break;
1216         case V4L2_CID_SATURATION:
1217                 c->value = btv->saturation;
1218                 break;
1219
1220         case V4L2_CID_AUDIO_MUTE:
1221         case V4L2_CID_AUDIO_VOLUME:
1222         case V4L2_CID_AUDIO_BALANCE:
1223         case V4L2_CID_AUDIO_BASS:
1224         case V4L2_CID_AUDIO_TREBLE:
1225                 bttv_call_i2c_clients(btv,VIDIOC_G_CTRL,c);
1226                 break;
1227
1228         case V4L2_CID_PRIVATE_CHROMA_AGC:
1229                 c->value = btv->opt_chroma_agc;
1230                 break;
1231         case V4L2_CID_PRIVATE_COMBFILTER:
1232                 c->value = btv->opt_combfilter;
1233                 break;
1234         case V4L2_CID_PRIVATE_LUMAFILTER:
1235                 c->value = btv->opt_lumafilter;
1236                 break;
1237         case V4L2_CID_PRIVATE_AUTOMUTE:
1238                 c->value = btv->opt_automute;
1239                 break;
1240         case V4L2_CID_PRIVATE_AGC_CRUSH:
1241                 c->value = btv->opt_adc_crush;
1242                 break;
1243         case V4L2_CID_PRIVATE_VCR_HACK:
1244                 c->value = btv->opt_vcr_hack;
1245                 break;
1246         case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1247                 c->value = btv->opt_whitecrush_upper;
1248                 break;
1249         case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1250                 c->value = btv->opt_whitecrush_lower;
1251                 break;
1252         case V4L2_CID_PRIVATE_UV_RATIO:
1253                 c->value = btv->opt_uv_ratio;
1254                 break;
1255         case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1256                 c->value = btv->opt_full_luma_range;
1257                 break;
1258         case V4L2_CID_PRIVATE_CORING:
1259                 c->value = btv->opt_coring;
1260                 break;
1261         default:
1262                 return -EINVAL;
1263         }
1264         return 0;
1265 }
1266
1267 static int set_control(struct bttv *btv, struct v4l2_control *c)
1268 {
1269         struct video_audio va;
1270         int i,val;
1271
1272         for (i = 0; i < BTTV_CTLS; i++)
1273                 if (bttv_ctls[i].id == c->id)
1274                         break;
1275         if (i == BTTV_CTLS)
1276                 return -EINVAL;
1277         if (btv->audio_hook && i >= 4 && i <= 8) {
1278                 memset(&va,0,sizeof(va));
1279                 btv->audio_hook(btv,&va,0);
1280                 switch (c->id) {
1281                 case V4L2_CID_AUDIO_MUTE:
1282                         if (c->value) {
1283                                 va.flags |= VIDEO_AUDIO_MUTE;
1284                                 audio_mute(btv, 1);
1285                         } else {
1286                                 va.flags &= ~VIDEO_AUDIO_MUTE;
1287                                 audio_mute(btv, 0);
1288                         }
1289                         break;
1290
1291                 case V4L2_CID_AUDIO_VOLUME:
1292                         va.volume = c->value;
1293                         break;
1294                 case V4L2_CID_AUDIO_BALANCE:
1295                         va.balance = c->value;
1296                         break;
1297                 case V4L2_CID_AUDIO_BASS:
1298                         va.bass = c->value;
1299                         break;
1300                 case V4L2_CID_AUDIO_TREBLE:
1301                         va.treble = c->value;
1302                         break;
1303                 }
1304                 btv->audio_hook(btv,&va,1);
1305                 return 0;
1306         }
1307         switch (c->id) {
1308         case V4L2_CID_BRIGHTNESS:
1309                 bt848_bright(btv,c->value);
1310                 break;
1311         case V4L2_CID_HUE:
1312                 bt848_hue(btv,c->value);
1313                 break;
1314         case V4L2_CID_CONTRAST:
1315                 bt848_contrast(btv,c->value);
1316                 break;
1317         case V4L2_CID_SATURATION:
1318                 bt848_sat(btv,c->value);
1319                 break;
1320         case V4L2_CID_AUDIO_MUTE:
1321                 audio_mute(btv, c->value);
1322                 /* fall through */
1323         case V4L2_CID_AUDIO_VOLUME:
1324         case V4L2_CID_AUDIO_BALANCE:
1325         case V4L2_CID_AUDIO_BASS:
1326         case V4L2_CID_AUDIO_TREBLE:
1327                 bttv_call_i2c_clients(btv,VIDIOC_S_CTRL,c);
1328                 break;
1329
1330         case V4L2_CID_PRIVATE_CHROMA_AGC:
1331                 btv->opt_chroma_agc = c->value;
1332                 val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1333                 btwrite(val, BT848_E_SCLOOP);
1334                 btwrite(val, BT848_O_SCLOOP);
1335                 break;
1336         case V4L2_CID_PRIVATE_COMBFILTER:
1337                 btv->opt_combfilter = c->value;
1338                 break;
1339         case V4L2_CID_PRIVATE_LUMAFILTER:
1340                 btv->opt_lumafilter = c->value;
1341                 if (btv->opt_lumafilter) {
1342                         btand(~BT848_CONTROL_LDEC, BT848_E_CONTROL);
1343                         btand(~BT848_CONTROL_LDEC, BT848_O_CONTROL);
1344                 } else {
1345                         btor(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1346                         btor(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1347                 }
1348                 break;
1349         case V4L2_CID_PRIVATE_AUTOMUTE:
1350                 btv->opt_automute = c->value;
1351                 break;
1352         case V4L2_CID_PRIVATE_AGC_CRUSH:
1353                 btv->opt_adc_crush = c->value;
1354                 btwrite(BT848_ADC_RESERVED | (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1355                         BT848_ADC);
1356                 break;
1357         case V4L2_CID_PRIVATE_VCR_HACK:
1358                 btv->opt_vcr_hack = c->value;
1359                 break;
1360         case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1361                 btv->opt_whitecrush_upper = c->value;
1362                 btwrite(c->value, BT848_WC_UP);
1363                 break;
1364         case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1365                 btv->opt_whitecrush_lower = c->value;
1366                 btwrite(c->value, BT848_WC_DOWN);
1367                 break;
1368         case V4L2_CID_PRIVATE_UV_RATIO:
1369                 btv->opt_uv_ratio = c->value;
1370                 bt848_sat(btv, btv->saturation);
1371                 break;
1372         case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1373                 btv->opt_full_luma_range = c->value;
1374                 btaor((c->value<<7), ~BT848_OFORM_RANGE, BT848_OFORM);
1375                 break;
1376         case V4L2_CID_PRIVATE_CORING:
1377                 btv->opt_coring = c->value;
1378                 btaor((c->value<<5), ~BT848_OFORM_CORE32, BT848_OFORM);
1379                 break;
1380         default:
1381                 return -EINVAL;
1382         }
1383         return 0;
1384 }
1385
1386 /* ----------------------------------------------------------------------- */
1387
1388 void bttv_gpio_tracking(struct bttv *btv, char *comment)
1389 {
1390         unsigned int outbits, data;
1391         outbits = btread(BT848_GPIO_OUT_EN);
1392         data    = btread(BT848_GPIO_DATA);
1393         printk(KERN_DEBUG "bttv%d: gpio: en=%08x, out=%08x in=%08x [%s]\n",
1394                btv->c.nr,outbits,data & outbits, data & ~outbits, comment);
1395 }
1396
1397 static void bttv_field_count(struct bttv *btv)
1398 {
1399         int need_count = 0;
1400
1401         if (btv->users)
1402                 need_count++;
1403
1404         if (need_count) {
1405                 /* start field counter */
1406                 btor(BT848_INT_VSYNC,BT848_INT_MASK);
1407         } else {
1408                 /* stop field counter */
1409                 btand(~BT848_INT_VSYNC,BT848_INT_MASK);
1410                 btv->field_count = 0;
1411         }
1412 }
1413
1414 static const struct bttv_format*
1415 format_by_palette(int palette)
1416 {
1417         unsigned int i;
1418
1419         for (i = 0; i < BTTV_FORMATS; i++) {
1420                 if (-1 == bttv_formats[i].palette)
1421                         continue;
1422                 if (bttv_formats[i].palette == palette)
1423                         return bttv_formats+i;
1424         }
1425         return NULL;
1426 }
1427
1428 static const struct bttv_format*
1429 format_by_fourcc(int fourcc)
1430 {
1431         unsigned int i;
1432
1433         for (i = 0; i < BTTV_FORMATS; i++) {
1434                 if (-1 == bttv_formats[i].fourcc)
1435                         continue;
1436                 if (bttv_formats[i].fourcc == fourcc)
1437                         return bttv_formats+i;
1438         }
1439         return NULL;
1440 }
1441
1442 /* ----------------------------------------------------------------------- */
1443 /* misc helpers                                                            */
1444
1445 static int
1446 bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh,
1447                     struct bttv_buffer *new)
1448 {
1449         struct bttv_buffer *old;
1450         unsigned long flags;
1451         int retval = 0;
1452
1453         dprintk("switch_overlay: enter [new=%p]\n",new);
1454         if (new)
1455                 new->vb.state = STATE_DONE;
1456         spin_lock_irqsave(&btv->s_lock,flags);
1457         old = btv->screen;
1458         btv->screen = new;
1459         btv->loop_irq |= 1;
1460         bttv_set_dma(btv, 0x03);
1461         spin_unlock_irqrestore(&btv->s_lock,flags);
1462         if (NULL == new)
1463                 free_btres(btv,fh,RESOURCE_OVERLAY);
1464         if (NULL != old) {
1465                 dprintk("switch_overlay: old=%p state is %d\n",old,old->vb.state);
1466                 bttv_dma_free(&fh->cap,btv, old);
1467                 kfree(old);
1468         }
1469         dprintk("switch_overlay: done\n");
1470         return retval;
1471 }
1472
1473 /* ----------------------------------------------------------------------- */
1474 /* video4linux (1) interface                                               */
1475
1476 static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
1477                                struct bttv_buffer *buf,
1478                                const struct bttv_format *fmt,
1479                                unsigned int width, unsigned int height,
1480                                enum v4l2_field field)
1481 {
1482         int redo_dma_risc = 0;
1483         int rc;
1484
1485         /* check settings */
1486         if (NULL == fmt)
1487                 return -EINVAL;
1488         if (fmt->btformat == BT848_COLOR_FMT_RAW) {
1489                 width  = RAW_BPL;
1490                 height = RAW_LINES*2;
1491                 if (width*height > buf->vb.bsize)
1492                         return -EINVAL;
1493                 buf->vb.size = buf->vb.bsize;
1494         } else {
1495                 if (width  < 48 ||
1496                     height < 32 ||
1497                     width  > bttv_tvnorms[btv->tvnorm].swidth ||
1498                     height > bttv_tvnorms[btv->tvnorm].sheight)
1499                         return -EINVAL;
1500                 buf->vb.size = (width * height * fmt->depth) >> 3;
1501                 if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
1502                         return -EINVAL;
1503         }
1504
1505         /* alloc + fill struct bttv_buffer (if changed) */
1506         if (buf->vb.width != width || buf->vb.height != height ||
1507             buf->vb.field != field ||
1508             buf->tvnorm != btv->tvnorm || buf->fmt != fmt) {
1509                 buf->vb.width  = width;
1510                 buf->vb.height = height;
1511                 buf->vb.field  = field;
1512                 buf->tvnorm    = btv->tvnorm;
1513                 buf->fmt       = fmt;
1514                 redo_dma_risc = 1;
1515         }
1516
1517         /* alloc risc memory */
1518         if (STATE_NEEDS_INIT == buf->vb.state) {
1519                 redo_dma_risc = 1;
1520                 if (0 != (rc = videobuf_iolock(q,&buf->vb,&btv->fbuf)))
1521                         goto fail;
1522         }
1523
1524         if (redo_dma_risc)
1525                 if (0 != (rc = bttv_buffer_risc(btv,buf)))
1526                         goto fail;
1527
1528         buf->vb.state = STATE_PREPARED;
1529         return 0;
1530
1531  fail:
1532         bttv_dma_free(q,btv,buf);
1533         return rc;
1534 }
1535
1536 static int
1537 buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
1538 {
1539         struct bttv_fh *fh = q->priv_data;
1540
1541         *size = fh->fmt->depth*fh->width*fh->height >> 3;
1542         if (0 == *count)
1543                 *count = gbuffers;
1544         while (*size * *count > gbuffers * gbufsize)
1545                 (*count)--;
1546         return 0;
1547 }
1548
1549 static int
1550 buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
1551                enum v4l2_field field)
1552 {
1553         struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1554         struct bttv_fh *fh = q->priv_data;
1555
1556         return bttv_prepare_buffer(q,fh->btv, buf, fh->fmt,
1557                                    fh->width, fh->height, field);
1558 }
1559
1560 static void
1561 buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
1562 {
1563         struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1564         struct bttv_fh *fh = q->priv_data;
1565         struct bttv    *btv = fh->btv;
1566
1567         buf->vb.state = STATE_QUEUED;
1568         list_add_tail(&buf->vb.queue,&btv->capture);
1569         if (!btv->curr.frame_irq) {
1570                 btv->loop_irq |= 1;
1571                 bttv_set_dma(btv, 0x03);
1572         }
1573 }
1574
1575 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
1576 {
1577         struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1578         struct bttv_fh *fh = q->priv_data;
1579
1580         bttv_dma_free(&fh->cap,fh->btv,buf);
1581 }
1582
1583 static struct videobuf_queue_ops bttv_video_qops = {
1584         .buf_setup    = buffer_setup,
1585         .buf_prepare  = buffer_prepare,
1586         .buf_queue    = buffer_queue,
1587         .buf_release  = buffer_release,
1588 };
1589
1590 static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
1591 {
1592         switch (cmd) {
1593         case BTTV_VERSION:
1594                 return BTTV_VERSION_CODE;
1595
1596         /* ***  v4l1  *** ************************************************ */
1597         case VIDIOCGFREQ:
1598         {
1599                 unsigned long *freq = arg;
1600                 *freq = btv->freq;
1601                 return 0;
1602         }
1603         case VIDIOCSFREQ:
1604         {
1605                 struct v4l2_frequency freq;
1606
1607                 memset(&freq, 0, sizeof(freq));
1608                 freq.frequency = *(unsigned long *)arg;
1609                 mutex_lock(&btv->lock);
1610                 freq.type = btv->radio_user ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1611                 btv->freq = *(unsigned long *)arg;
1612                 bttv_call_i2c_clients(btv,VIDIOC_S_FREQUENCY,&freq);
1613                 if (btv->has_matchbox && btv->radio_user)
1614                         tea5757_set_freq(btv,*(unsigned long *)arg);
1615                 mutex_unlock(&btv->lock);
1616                 return 0;
1617         }
1618
1619         case VIDIOCGTUNER:
1620         {
1621                 struct video_tuner *v = arg;
1622
1623                 if (UNSET == bttv_tvcards[btv->c.type].tuner)
1624                         return -EINVAL;
1625                 if (v->tuner) /* Only tuner 0 */
1626                         return -EINVAL;
1627                 strcpy(v->name, "Television");
1628                 v->rangelow  = 0;
1629                 v->rangehigh = 0x7FFFFFFF;
1630                 v->flags     = VIDEO_TUNER_PAL|VIDEO_TUNER_NTSC|VIDEO_TUNER_SECAM;
1631                 v->mode      = btv->tvnorm;
1632                 v->signal    = (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC) ? 0xFFFF : 0;
1633                 bttv_call_i2c_clients(btv,cmd,v);
1634                 return 0;
1635         }
1636         case VIDIOCSTUNER:
1637         {
1638                 struct video_tuner *v = arg;
1639
1640                 if (v->tuner) /* Only tuner 0 */
1641                         return -EINVAL;
1642                 if (v->mode >= BTTV_TVNORMS)
1643                         return -EINVAL;
1644
1645                 mutex_lock(&btv->lock);
1646                 set_tvnorm(btv,v->mode);
1647                 bttv_call_i2c_clients(btv,cmd,v);
1648                 mutex_unlock(&btv->lock);
1649                 return 0;
1650         }
1651
1652         case VIDIOCGCHAN:
1653         {
1654                 struct video_channel *v = arg;
1655                 unsigned int channel = v->channel;
1656
1657                 if (channel >= bttv_tvcards[btv->c.type].video_inputs)
1658                         return -EINVAL;
1659                 v->tuners=0;
1660                 v->flags = VIDEO_VC_AUDIO;
1661                 v->type = VIDEO_TYPE_CAMERA;
1662                 v->norm = btv->tvnorm;
1663                 if (channel == bttv_tvcards[btv->c.type].tuner)  {
1664                         strcpy(v->name,"Television");
1665                         v->flags|=VIDEO_VC_TUNER;
1666                         v->type=VIDEO_TYPE_TV;
1667                         v->tuners=1;
1668                 } else if (channel == btv->svhs) {
1669                         strcpy(v->name,"S-Video");
1670                 } else {
1671                         sprintf(v->name,"Composite%d",channel);
1672                 }
1673                 return 0;
1674         }
1675         case VIDIOCSCHAN:
1676         {
1677                 struct video_channel *v = arg;
1678                 unsigned int channel = v->channel;
1679
1680                 if (channel >= bttv_tvcards[btv->c.type].video_inputs)
1681                         return -EINVAL;
1682                 if (v->norm >= BTTV_TVNORMS)
1683                         return -EINVAL;
1684
1685                 mutex_lock(&btv->lock);
1686                 if (channel == btv->input &&
1687                     v->norm == btv->tvnorm) {
1688                         /* nothing to do */
1689                         mutex_unlock(&btv->lock);
1690                         return 0;
1691                 }
1692
1693                 btv->tvnorm = v->norm;
1694                 set_input(btv,v->channel);
1695                 mutex_unlock(&btv->lock);
1696                 return 0;
1697         }
1698
1699         case VIDIOCGAUDIO:
1700         {
1701                 struct video_audio *v = arg;
1702
1703                 memset(v,0,sizeof(*v));
1704                 strcpy(v->name,"Television");
1705                 v->flags |= VIDEO_AUDIO_MUTABLE;
1706                 v->mode  = VIDEO_SOUND_MONO;
1707
1708                 mutex_lock(&btv->lock);
1709                 bttv_call_i2c_clients(btv,cmd,v);
1710
1711                 /* card specific hooks */
1712                 if (btv->audio_hook)
1713                         btv->audio_hook(btv,v,0);
1714
1715                 mutex_unlock(&btv->lock);
1716                 return 0;
1717         }
1718         case VIDIOCSAUDIO:
1719         {
1720                 struct video_audio *v = arg;
1721                 unsigned int audio = v->audio;
1722
1723                 if (audio >= bttv_tvcards[btv->c.type].audio_inputs)
1724                         return -EINVAL;
1725
1726                 mutex_lock(&btv->lock);
1727                 audio_mute(btv, (v->flags&VIDEO_AUDIO_MUTE) ? 1 : 0);
1728                 bttv_call_i2c_clients(btv,cmd,v);
1729
1730                 /* card specific hooks */
1731                 if (btv->audio_hook)
1732                         btv->audio_hook(btv,v,1);
1733
1734                 mutex_unlock(&btv->lock);
1735                 return 0;
1736         }
1737
1738         /* ***  v4l2  *** ************************************************ */
1739         case VIDIOC_ENUMSTD:
1740         {
1741                 struct v4l2_standard *e = arg;
1742                 unsigned int index = e->index;
1743
1744                 if (index >= BTTV_TVNORMS)
1745                         return -EINVAL;
1746                 v4l2_video_std_construct(e, bttv_tvnorms[e->index].v4l2_id,
1747                                          bttv_tvnorms[e->index].name);
1748                 e->index = index;
1749                 return 0;
1750         }
1751         case VIDIOC_G_STD:
1752         {
1753                 v4l2_std_id *id = arg;
1754                 *id = bttv_tvnorms[btv->tvnorm].v4l2_id;
1755                 return 0;
1756         }
1757         case VIDIOC_S_STD:
1758         {
1759                 v4l2_std_id *id = arg;
1760                 unsigned int i;
1761
1762                 for (i = 0; i < BTTV_TVNORMS; i++)
1763                         if (*id & bttv_tvnorms[i].v4l2_id)
1764                                 break;
1765                 if (i == BTTV_TVNORMS)
1766                         return -EINVAL;
1767
1768                 mutex_lock(&btv->lock);
1769                 set_tvnorm(btv,i);
1770                 i2c_vidiocschan(btv);
1771                 mutex_unlock(&btv->lock);
1772                 return 0;
1773         }
1774         case VIDIOC_QUERYSTD:
1775         {
1776                 v4l2_std_id *id = arg;
1777
1778                 if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML)
1779                         *id = V4L2_STD_625_50;
1780                 else
1781                         *id = V4L2_STD_525_60;
1782                 return 0;
1783         }
1784
1785         case VIDIOC_ENUMINPUT:
1786         {
1787                 struct v4l2_input *i = arg;
1788                 unsigned int n;
1789
1790                 n = i->index;
1791                 if (n >= bttv_tvcards[btv->c.type].video_inputs)
1792                         return -EINVAL;
1793                 memset(i,0,sizeof(*i));
1794                 i->index    = n;
1795                 i->type     = V4L2_INPUT_TYPE_CAMERA;
1796                 i->audioset = 1;
1797                 if (i->index == bttv_tvcards[btv->c.type].tuner) {
1798                         sprintf(i->name, "Television");
1799                         i->type  = V4L2_INPUT_TYPE_TUNER;
1800                         i->tuner = 0;
1801                 } else if (i->index == btv->svhs) {
1802                         sprintf(i->name, "S-Video");
1803                 } else {
1804                         sprintf(i->name,"Composite%d",i->index);
1805                 }
1806                 if (i->index == btv->input) {
1807                         __u32 dstatus = btread(BT848_DSTATUS);
1808                         if (0 == (dstatus & BT848_DSTATUS_PRES))
1809                                 i->status |= V4L2_IN_ST_NO_SIGNAL;
1810                         if (0 == (dstatus & BT848_DSTATUS_HLOC))
1811                                 i->status |= V4L2_IN_ST_NO_H_LOCK;
1812                 }
1813                 for (n = 0; n < BTTV_TVNORMS; n++)
1814                         i->std |= bttv_tvnorms[n].v4l2_id;
1815                 return 0;
1816         }
1817         case VIDIOC_G_INPUT:
1818         {
1819                 int *i = arg;
1820                 *i = btv->input;
1821                 return 0;
1822         }
1823         case VIDIOC_S_INPUT:
1824         {
1825                 unsigned int *i = arg;
1826
1827                 if (*i > bttv_tvcards[btv->c.type].video_inputs)
1828                         return -EINVAL;
1829                 mutex_lock(&btv->lock);
1830                 set_input(btv,*i);
1831                 mutex_unlock(&btv->lock);
1832                 return 0;
1833         }
1834
1835         case VIDIOC_G_TUNER:
1836         {
1837                 struct v4l2_tuner *t = arg;
1838
1839                 if (UNSET == bttv_tvcards[btv->c.type].tuner)
1840                         return -EINVAL;
1841                 if (0 != t->index)
1842                         return -EINVAL;
1843                 mutex_lock(&btv->lock);
1844                 memset(t,0,sizeof(*t));
1845                 t->rxsubchans = V4L2_TUNER_SUB_MONO;
1846                 bttv_call_i2c_clients(btv, VIDIOC_G_TUNER, t);
1847                 strcpy(t->name, "Television");
1848                 t->capability = V4L2_TUNER_CAP_NORM;
1849                 t->type       = V4L2_TUNER_ANALOG_TV;
1850                 if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC)
1851                         t->signal = 0xffff;
1852
1853                 if (btv->audio_hook) {
1854                         /* Hmmm ... */
1855                         struct video_audio va;
1856                         memset(&va, 0, sizeof(struct video_audio));
1857                         btv->audio_hook(btv,&va,0);
1858                         t->audmode    = V4L2_TUNER_MODE_MONO;
1859                         t->rxsubchans = V4L2_TUNER_SUB_MONO;
1860                         if(va.mode & VIDEO_SOUND_STEREO) {
1861                                 t->audmode    = V4L2_TUNER_MODE_STEREO;
1862                                 t->rxsubchans = V4L2_TUNER_SUB_STEREO;
1863                         }
1864                         if(va.mode & VIDEO_SOUND_LANG2) {
1865                                 t->audmode    = V4L2_TUNER_MODE_LANG1;
1866                                 t->rxsubchans = V4L2_TUNER_SUB_LANG1
1867                                         | V4L2_TUNER_SUB_LANG2;
1868                         }
1869                 }
1870                 /* FIXME: fill capability+audmode */
1871                 mutex_unlock(&btv->lock);
1872                 return 0;
1873         }
1874         case VIDIOC_S_TUNER:
1875         {
1876                 struct v4l2_tuner *t = arg;
1877
1878                 if (UNSET == bttv_tvcards[btv->c.type].tuner)
1879                         return -EINVAL;
1880                 if (0 != t->index)
1881                         return -EINVAL;
1882                 mutex_lock(&btv->lock);
1883                 bttv_call_i2c_clients(btv, VIDIOC_S_TUNER, t);
1884                 if (btv->audio_hook) {
1885                         struct video_audio va;
1886                         memset(&va, 0, sizeof(struct video_audio));
1887                         if (t->audmode == V4L2_TUNER_MODE_MONO)
1888                                 va.mode = VIDEO_SOUND_MONO;
1889                         else if (t->audmode == V4L2_TUNER_MODE_STEREO ||
1890                                  t->audmode == V4L2_TUNER_MODE_LANG1_LANG2)
1891                                 va.mode = VIDEO_SOUND_STEREO;
1892                         else if (t->audmode == V4L2_TUNER_MODE_LANG1)
1893                                 va.mode = VIDEO_SOUND_LANG1;
1894                         else if (t->audmode == V4L2_TUNER_MODE_LANG2)
1895                                 va.mode = VIDEO_SOUND_LANG2;
1896                         btv->audio_hook(btv,&va,1);
1897                 }
1898                 mutex_unlock(&btv->lock);
1899                 return 0;
1900         }
1901
1902         case VIDIOC_G_FREQUENCY:
1903         {
1904                 struct v4l2_frequency *f = arg;
1905
1906                 memset(f,0,sizeof(*f));
1907                 f->type = V4L2_TUNER_ANALOG_TV;
1908                 f->frequency = btv->freq;
1909                 return 0;
1910         }
1911         case VIDIOC_S_FREQUENCY:
1912         {
1913                 struct v4l2_frequency *f = arg;
1914
1915                 if (unlikely(f->tuner != 0))
1916                         return -EINVAL;
1917                 if (unlikely (f->type != V4L2_TUNER_ANALOG_TV))
1918                         return -EINVAL;
1919                 mutex_lock(&btv->lock);
1920                 btv->freq = f->frequency;
1921                 bttv_call_i2c_clients(btv,VIDIOC_S_FREQUENCY,f);
1922                 if (btv->has_matchbox && btv->radio_user)
1923                         tea5757_set_freq(btv,btv->freq);
1924                 mutex_unlock(&btv->lock);
1925                 return 0;
1926         }
1927         case VIDIOC_LOG_STATUS:
1928         {
1929                 printk(KERN_INFO "bttv%d: =================  START STATUS CARD #%d  =================\n", btv->c.nr, btv->c.nr);
1930                 bttv_call_i2c_clients(btv, VIDIOC_LOG_STATUS, NULL);
1931                 printk(KERN_INFO "bttv%d: ==================  END STATUS CARD #%d  ==================\n", btv->c.nr, btv->c.nr);
1932                 return 0;
1933         }
1934
1935         default:
1936                 return -ENOIOCTLCMD;
1937
1938         }
1939         return 0;
1940 }
1941
1942 static int verify_window(const struct bttv_tvnorm *tvn,
1943                          struct v4l2_window *win, int fixup)
1944 {
1945         enum v4l2_field field;
1946         int maxw, maxh;
1947
1948         if (win->w.width  < 48 || win->w.height < 32)
1949                 return -EINVAL;
1950         if (win->clipcount > 2048)
1951                 return -EINVAL;
1952
1953         field = win->field;
1954         maxw  = tvn->swidth;
1955         maxh  = tvn->sheight;
1956
1957         if (V4L2_FIELD_ANY == field) {
1958                 field = (win->w.height > maxh/2)
1959                         ? V4L2_FIELD_INTERLACED
1960                         : V4L2_FIELD_TOP;
1961         }
1962         switch (field) {
1963         case V4L2_FIELD_TOP:
1964         case V4L2_FIELD_BOTTOM:
1965                 maxh = maxh / 2;
1966                 break;
1967         case V4L2_FIELD_INTERLACED:
1968                 break;
1969         default:
1970                 return -EINVAL;
1971         }
1972
1973         if (!fixup && (win->w.width > maxw || win->w.height > maxh))
1974                 return -EINVAL;
1975
1976         if (win->w.width > maxw)
1977                 win->w.width = maxw;
1978         if (win->w.height > maxh)
1979                 win->w.height = maxh;
1980         win->field = field;
1981         return 0;
1982 }
1983
1984 static int setup_window(struct bttv_fh *fh, struct bttv *btv,
1985                         struct v4l2_window *win, int fixup)
1986 {
1987         struct v4l2_clip *clips = NULL;
1988         int n,size,retval = 0;
1989
1990         if (NULL == fh->ovfmt)
1991                 return -EINVAL;
1992         if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED))
1993                 return -EINVAL;
1994         retval = verify_window(&bttv_tvnorms[btv->tvnorm],win,fixup);
1995         if (0 != retval)
1996                 return retval;
1997
1998         /* copy clips  --  luckily v4l1 + v4l2 are binary
1999            compatible here ...*/
2000         n = win->clipcount;
2001         size = sizeof(*clips)*(n+4);
2002         clips = kmalloc(size,GFP_KERNEL);
2003         if (NULL == clips)
2004                 return -ENOMEM;
2005         if (n > 0) {
2006                 if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) {
2007                         kfree(clips);
2008                         return -EFAULT;
2009                 }
2010         }
2011         /* clip against screen */
2012         if (NULL != btv->fbuf.base)
2013                 n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height,
2014                                       &win->w, clips, n);
2015         btcx_sort_clips(clips,n);
2016
2017         /* 4-byte alignments */
2018         switch (fh->ovfmt->depth) {
2019         case 8:
2020         case 24:
2021                 btcx_align(&win->w, clips, n, 3);
2022                 break;
2023         case 16:
2024                 btcx_align(&win->w, clips, n, 1);
2025                 break;
2026         case 32:
2027                 /* no alignment fixups needed */
2028                 break;
2029         default:
2030                 BUG();
2031         }
2032
2033         mutex_lock(&fh->cap.lock);
2034                 kfree(fh->ov.clips);
2035         fh->ov.clips    = clips;
2036         fh->ov.nclips   = n;
2037
2038         fh->ov.w        = win->w;
2039         fh->ov.field    = win->field;
2040         fh->ov.setup_ok = 1;
2041         btv->init.ov.w.width   = win->w.width;
2042         btv->init.ov.w.height  = win->w.height;
2043         btv->init.ov.field     = win->field;
2044
2045         /* update overlay if needed */
2046         retval = 0;
2047         if (check_btres(fh, RESOURCE_OVERLAY)) {
2048                 struct bttv_buffer *new;
2049
2050                 new = videobuf_alloc(sizeof(*new));
2051                 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2052                 retval = bttv_switch_overlay(btv,fh,new);
2053         }
2054         mutex_unlock(&fh->cap.lock);
2055         return retval;
2056 }
2057
2058 /* ----------------------------------------------------------------------- */
2059
2060 static struct videobuf_queue* bttv_queue(struct bttv_fh *fh)
2061 {
2062         struct videobuf_queue* q = NULL;
2063
2064         switch (fh->type) {
2065         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2066                 q = &fh->cap;
2067                 break;
2068         case V4L2_BUF_TYPE_VBI_CAPTURE:
2069                 q = &fh->vbi;
2070                 break;
2071         default:
2072                 BUG();
2073         }
2074         return q;
2075 }
2076
2077 static int bttv_resource(struct bttv_fh *fh)
2078 {
2079         int res = 0;
2080
2081         switch (fh->type) {
2082         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2083                 res = RESOURCE_VIDEO;
2084                 break;
2085         case V4L2_BUF_TYPE_VBI_CAPTURE:
2086                 res = RESOURCE_VBI;
2087                 break;
2088         default:
2089                 BUG();
2090         }
2091         return res;
2092 }
2093
2094 static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type)
2095 {
2096         struct videobuf_queue *q = bttv_queue(fh);
2097         int res = bttv_resource(fh);
2098
2099         if (check_btres(fh,res))
2100                 return -EBUSY;
2101         if (videobuf_queue_is_busy(q))
2102                 return -EBUSY;
2103         fh->type = type;
2104         return 0;
2105 }
2106
2107 static void
2108 pix_format_set_size     (struct v4l2_pix_format *       f,
2109                          const struct bttv_format *     fmt,
2110                          unsigned int                   width,
2111                          unsigned int                   height)
2112 {
2113         f->width = width;
2114         f->height = height;
2115
2116         if (fmt->flags & FORMAT_FLAGS_PLANAR) {
2117                 f->bytesperline = width; /* Y plane */
2118                 f->sizeimage = (width * height * fmt->depth) >> 3;
2119         } else {
2120                 f->bytesperline = (width * fmt->depth) >> 3;
2121                 f->sizeimage = height * f->bytesperline;
2122         }
2123 }
2124
2125 static int bttv_g_fmt(struct bttv_fh *fh, struct v4l2_format *f)
2126 {
2127         switch (f->type) {
2128         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2129                 memset(&f->fmt.pix,0,sizeof(struct v4l2_pix_format));
2130                 pix_format_set_size (&f->fmt.pix, fh->fmt,
2131                                      fh->width, fh->height);
2132                 f->fmt.pix.field        = fh->cap.field;
2133                 f->fmt.pix.pixelformat  = fh->fmt->fourcc;
2134                 return 0;
2135         case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2136                 memset(&f->fmt.win,0,sizeof(struct v4l2_window));
2137                 f->fmt.win.w     = fh->ov.w;
2138                 f->fmt.win.field = fh->ov.field;
2139                 return 0;
2140         case V4L2_BUF_TYPE_VBI_CAPTURE:
2141                 bttv_vbi_get_fmt(fh,f);
2142                 return 0;
2143         default:
2144                 return -EINVAL;
2145         }
2146 }
2147
2148 static int bttv_try_fmt(struct bttv_fh *fh, struct bttv *btv,
2149                         struct v4l2_format *f)
2150 {
2151         switch (f->type) {
2152         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2153         {
2154                 const struct bttv_format *fmt;
2155                 enum v4l2_field field;
2156                 unsigned int maxw,maxh;
2157
2158                 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2159                 if (NULL == fmt)
2160                         return -EINVAL;
2161
2162                 /* fixup format */
2163                 maxw  = bttv_tvnorms[btv->tvnorm].swidth;
2164                 maxh  = bttv_tvnorms[btv->tvnorm].sheight;
2165                 field = f->fmt.pix.field;
2166                 if (V4L2_FIELD_ANY == field)
2167                         field = (f->fmt.pix.height > maxh/2)
2168                                 ? V4L2_FIELD_INTERLACED
2169                                 : V4L2_FIELD_BOTTOM;
2170                 if (V4L2_FIELD_SEQ_BT == field)
2171                         field = V4L2_FIELD_SEQ_TB;
2172                 switch (field) {
2173                 case V4L2_FIELD_TOP:
2174                 case V4L2_FIELD_BOTTOM:
2175                 case V4L2_FIELD_ALTERNATE:
2176                         maxh = maxh/2;
2177                         break;
2178                 case V4L2_FIELD_INTERLACED:
2179                         break;
2180                 case V4L2_FIELD_SEQ_TB:
2181                         if (fmt->flags & FORMAT_FLAGS_PLANAR)
2182                                 return -EINVAL;
2183                         break;
2184                 default:
2185                         return -EINVAL;
2186                 }
2187
2188                 /* update data for the application */
2189                 f->fmt.pix.field = field;
2190                 if (f->fmt.pix.width  < 48)
2191                         f->fmt.pix.width  = 48;
2192                 if (f->fmt.pix.height < 32)
2193                         f->fmt.pix.height = 32;
2194                 if (f->fmt.pix.width  > maxw)
2195                         f->fmt.pix.width = maxw;
2196                 if (f->fmt.pix.height > maxh)
2197                         f->fmt.pix.height = maxh;
2198                 pix_format_set_size (&f->fmt.pix, fmt,
2199                                      f->fmt.pix.width & ~3,
2200                                      f->fmt.pix.height);
2201
2202                 return 0;
2203         }
2204         case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2205                 return verify_window(&bttv_tvnorms[btv->tvnorm],
2206                                      &f->fmt.win, 1);
2207         case V4L2_BUF_TYPE_VBI_CAPTURE:
2208                 bttv_vbi_try_fmt(fh,f);
2209                 return 0;
2210         default:
2211                 return -EINVAL;
2212         }
2213 }
2214
2215 static int bttv_s_fmt(struct bttv_fh *fh, struct bttv *btv,
2216                       struct v4l2_format *f)
2217 {
2218         int retval;
2219
2220         switch (f->type) {
2221         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2222         {
2223                 const struct bttv_format *fmt;
2224
2225                 retval = bttv_switch_type(fh,f->type);
2226                 if (0 != retval)
2227                         return retval;
2228                 retval = bttv_try_fmt(fh,btv,f);
2229                 if (0 != retval)
2230                         return retval;
2231                 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2232
2233                 /* update our state informations */
2234                 mutex_lock(&fh->cap.lock);
2235                 fh->fmt              = fmt;
2236                 fh->cap.field        = f->fmt.pix.field;
2237                 fh->cap.last         = V4L2_FIELD_NONE;
2238                 fh->width            = f->fmt.pix.width;
2239                 fh->height           = f->fmt.pix.height;
2240                 btv->init.fmt        = fmt;
2241                 btv->init.width      = f->fmt.pix.width;
2242                 btv->init.height     = f->fmt.pix.height;
2243                 mutex_unlock(&fh->cap.lock);
2244
2245                 return 0;
2246         }
2247         case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2248                 if (no_overlay > 0) {
2249                         printk ("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2250                         return -EINVAL;
2251                 }
2252                 return setup_window(fh, btv, &f->fmt.win, 1);
2253         case V4L2_BUF_TYPE_VBI_CAPTURE:
2254                 retval = bttv_switch_type(fh,f->type);
2255                 if (0 != retval)
2256                         return retval;
2257                 if (locked_btres(fh->btv, RESOURCE_VBI))
2258                         return -EBUSY;
2259                 bttv_vbi_try_fmt(fh,f);
2260                 bttv_vbi_setlines(fh,btv,f->fmt.vbi.count[0]);
2261                 bttv_vbi_get_fmt(fh,f);
2262                 return 0;
2263         default:
2264                 return -EINVAL;
2265         }
2266 }
2267
2268 static int bttv_do_ioctl(struct inode *inode, struct file *file,
2269                          unsigned int cmd, void *arg)
2270 {
2271         struct bttv_fh *fh  = file->private_data;
2272         struct bttv    *btv = fh->btv;
2273         unsigned long flags;
2274         int retval = 0;
2275
2276         if (bttv_debug > 1)
2277                 v4l_print_ioctl(btv->c.name, cmd);
2278
2279         if (btv->errors)
2280                 bttv_reinit_bt848(btv);
2281
2282         switch (cmd) {
2283         case VIDIOCSFREQ:
2284         case VIDIOCSTUNER:
2285         case VIDIOCSCHAN:
2286         case VIDIOC_S_CTRL:
2287         case VIDIOC_S_STD:
2288         case VIDIOC_S_INPUT:
2289         case VIDIOC_S_TUNER:
2290         case VIDIOC_S_FREQUENCY:
2291                 retval = v4l2_prio_check(&btv->prio,&fh->prio);
2292                 if (0 != retval)
2293                         return retval;
2294         };
2295
2296         switch (cmd) {
2297
2298         /* ***  v4l1  *** ************************************************ */
2299         case VIDIOCGCAP:
2300         {
2301                 struct video_capability *cap = arg;
2302
2303                 memset(cap,0,sizeof(*cap));
2304                 strcpy(cap->name,btv->video_dev->name);
2305                 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
2306                         /* vbi */
2307                         cap->type = VID_TYPE_TUNER|VID_TYPE_TELETEXT;
2308                 } else {
2309                         /* others */
2310                         cap->type = VID_TYPE_CAPTURE|
2311                                 VID_TYPE_TUNER|
2312                                 VID_TYPE_CLIPPING|
2313                                 VID_TYPE_SCALES;
2314                         if (no_overlay <= 0)
2315                                 cap->type |= VID_TYPE_OVERLAY;
2316
2317                         cap->maxwidth  = bttv_tvnorms[btv->tvnorm].swidth;
2318                         cap->maxheight = bttv_tvnorms[btv->tvnorm].sheight;
2319                         cap->minwidth  = 48;
2320                         cap->minheight = 32;
2321                 }
2322                 cap->channels  = bttv_tvcards[btv->c.type].video_inputs;
2323                 cap->audios    = bttv_tvcards[btv->c.type].audio_inputs;
2324                 return 0;
2325         }
2326
2327         case VIDIOCGPICT:
2328         {
2329                 struct video_picture *pic = arg;
2330
2331                 memset(pic,0,sizeof(*pic));
2332                 pic->brightness = btv->bright;
2333                 pic->contrast   = btv->contrast;
2334                 pic->hue        = btv->hue;
2335                 pic->colour     = btv->saturation;
2336                 if (fh->fmt) {
2337                         pic->depth   = fh->fmt->depth;
2338                         pic->palette = fh->fmt->palette;
2339                 }
2340                 return 0;
2341         }
2342         case VIDIOCSPICT:
2343         {
2344                 struct video_picture *pic = arg;
2345                 const struct bttv_format *fmt;
2346
2347                 fmt = format_by_palette(pic->palette);
2348                 if (NULL == fmt)
2349                         return -EINVAL;
2350                 mutex_lock(&fh->cap.lock);
2351                 if (fmt->depth != pic->depth) {
2352                         retval = -EINVAL;
2353                         goto fh_unlock_and_return;
2354                 }
2355                 if (fmt->flags & FORMAT_FLAGS_RAW) {
2356                         /* VIDIOCMCAPTURE uses gbufsize, not RAW_BPL *
2357                            RAW_LINES * 2. F1 is stored at offset 0, F2
2358                            at buffer size / 2. */
2359                         fh->width = RAW_BPL;
2360                         fh->height = gbufsize / RAW_BPL;
2361                         btv->init.width  = RAW_BPL;
2362                         btv->init.height = gbufsize / RAW_BPL;
2363                 }
2364                 fh->ovfmt   = fmt;
2365                 fh->fmt     = fmt;
2366                 btv->init.ovfmt   = fmt;
2367                 btv->init.fmt     = fmt;
2368                 if (bigendian) {
2369                         /* dirty hack time:  swap bytes for overlay if the
2370                            display adaptor is big endian (insmod option) */
2371                         if (fmt->palette == VIDEO_PALETTE_RGB555 ||
2372                             fmt->palette == VIDEO_PALETTE_RGB565 ||
2373                             fmt->palette == VIDEO_PALETTE_RGB32) {
2374                                 fh->ovfmt = fmt+1;
2375                         }
2376                 }
2377                 bt848_bright(btv,pic->brightness);
2378                 bt848_contrast(btv,pic->contrast);
2379                 bt848_hue(btv,pic->hue);
2380                 bt848_sat(btv,pic->colour);
2381                 mutex_unlock(&fh->cap.lock);
2382                 return 0;
2383         }
2384
2385         case VIDIOCGWIN:
2386         {
2387                 struct video_window *win = arg;
2388
2389                 memset(win,0,sizeof(*win));
2390                 win->x      = fh->ov.w.left;
2391                 win->y      = fh->ov.w.top;
2392                 win->width  = fh->ov.w.width;
2393                 win->height = fh->ov.w.height;
2394                 return 0;
2395         }
2396         case VIDIOCSWIN:
2397         {
2398                 struct video_window *win = arg;
2399                 struct v4l2_window w2;
2400
2401                 if (no_overlay > 0) {
2402                         printk ("VIDIOCSWIN: no_overlay\n");
2403                         return -EINVAL;
2404                 }
2405
2406                 w2.field = V4L2_FIELD_ANY;
2407                 w2.w.left    = win->x;
2408                 w2.w.top     = win->y;
2409                 w2.w.width   = win->width;
2410                 w2.w.height  = win->height;
2411                 w2.clipcount = win->clipcount;
2412                 w2.clips     = (struct v4l2_clip __user *)win->clips;
2413                 retval = setup_window(fh, btv, &w2, 0);
2414                 if (0 == retval) {
2415                         /* on v4l1 this ioctl affects the read() size too */
2416                         fh->width  = fh->ov.w.width;
2417                         fh->height = fh->ov.w.height;
2418                         btv->init.width  = fh->ov.w.width;
2419                         btv->init.height = fh->ov.w.height;
2420                 }
2421                 return retval;
2422         }
2423
2424         case VIDIOCGFBUF:
2425         {
2426                 struct video_buffer *fbuf = arg;
2427
2428                 fbuf->base          = btv->fbuf.base;
2429                 fbuf->width         = btv->fbuf.fmt.width;
2430                 fbuf->height        = btv->fbuf.fmt.height;
2431                 fbuf->bytesperline  = btv->fbuf.fmt.bytesperline;
2432                 if (fh->ovfmt)
2433                         fbuf->depth = fh->ovfmt->depth;
2434                 else {
2435                         if (fbuf->width)
2436                                 fbuf->depth   = ((fbuf->bytesperline<<3)
2437                                                   + (fbuf->width-1) )
2438                                                   /fbuf->width;
2439                         else
2440                                 fbuf->depth = 0;
2441                 }
2442                 return 0;
2443         }
2444         case VIDIOCSFBUF:
2445         {
2446                 struct video_buffer *fbuf = arg;
2447                 const struct bttv_format *fmt;
2448                 unsigned long end;
2449
2450                 if(!capable(CAP_SYS_ADMIN) &&
2451                    !capable(CAP_SYS_RAWIO))
2452                         return -EPERM;
2453                 end = (unsigned long)fbuf->base +
2454                         fbuf->height * fbuf->bytesperline;
2455                 mutex_lock(&fh->cap.lock);
2456                 retval = -EINVAL;
2457
2458                 switch (fbuf->depth) {
2459                 case 8:
2460                         fmt = format_by_palette(VIDEO_PALETTE_HI240);
2461                         break;
2462                 case 16:
2463                         fmt = format_by_palette(VIDEO_PALETTE_RGB565);
2464                         break;
2465                 case 24:
2466                         fmt = format_by_palette(VIDEO_PALETTE_RGB24);
2467                         break;
2468                 case 32:
2469                         fmt = format_by_palette(VIDEO_PALETTE_RGB32);
2470                         break;
2471                 case 15:
2472                         fbuf->depth = 16;
2473                         fmt = format_by_palette(VIDEO_PALETTE_RGB555);
2474                         break;
2475                 default:
2476                         fmt = NULL;
2477                         break;
2478                 }
2479                 if (NULL == fmt)
2480                         goto fh_unlock_and_return;
2481
2482                 fh->ovfmt = fmt;
2483                 fh->fmt   = fmt;
2484                 btv->init.ovfmt = fmt;
2485                 btv->init.fmt   = fmt;
2486                 btv->fbuf.base             = fbuf->base;
2487                 btv->fbuf.fmt.width        = fbuf->width;
2488                 btv->fbuf.fmt.height       = fbuf->height;
2489                 if (fbuf->bytesperline)
2490                         btv->fbuf.fmt.bytesperline = fbuf->bytesperline;
2491                 else
2492                         btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fbuf->depth/8;
2493                 mutex_unlock(&fh->cap.lock);
2494                 return 0;
2495         }
2496
2497         case VIDIOCCAPTURE:
2498         case VIDIOC_OVERLAY:
2499         {
2500                 struct bttv_buffer *new;
2501                 int *on = arg;
2502
2503                 if (*on) {
2504                         /* verify args */
2505                         if (NULL == btv->fbuf.base)
2506                                 return -EINVAL;
2507                         if (!fh->ov.setup_ok) {
2508                                 dprintk("bttv%d: overlay: !setup_ok\n",btv->c.nr);
2509                                 return -EINVAL;
2510                         }
2511                 }
2512
2513                 if (!check_alloc_btres(btv,fh,RESOURCE_OVERLAY))
2514                         return -EBUSY;
2515
2516                 mutex_lock(&fh->cap.lock);
2517                 if (*on) {
2518                         fh->ov.tvnorm = btv->tvnorm;
2519                         new = videobuf_alloc(sizeof(*new));
2520                         bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2521                 } else {
2522                         new = NULL;
2523                 }
2524
2525                 /* switch over */
2526                 retval = bttv_switch_overlay(btv,fh,new);
2527                 mutex_unlock(&fh->cap.lock);
2528                 return retval;
2529         }
2530
2531         case VIDIOCGMBUF:
2532         {
2533                 struct video_mbuf *mbuf = arg;
2534                 unsigned int i;
2535
2536                 mutex_lock(&fh->cap.lock);
2537                 retval = videobuf_mmap_setup(&fh->cap,gbuffers,gbufsize,
2538                                              V4L2_MEMORY_MMAP);
2539                 if (retval < 0)
2540                         goto fh_unlock_and_return;
2541                 memset(mbuf,0,sizeof(*mbuf));
2542                 mbuf->frames = gbuffers;
2543                 mbuf->size   = gbuffers * gbufsize;
2544                 for (i = 0; i < gbuffers; i++)
2545                         mbuf->offsets[i] = i * gbufsize;
2546                 mutex_unlock(&fh->cap.lock);
2547                 return 0;
2548         }
2549         case VIDIOCMCAPTURE:
2550         {
2551                 struct video_mmap *vm = arg;
2552                 struct bttv_buffer *buf;
2553                 enum v4l2_field field;
2554
2555                 if (vm->frame >= VIDEO_MAX_FRAME)
2556                         return -EINVAL;
2557
2558                 mutex_lock(&fh->cap.lock);
2559                 retval = -EINVAL;
2560                 buf = (struct bttv_buffer *)fh->cap.bufs[vm->frame];
2561                 if (NULL == buf)
2562                         goto fh_unlock_and_return;
2563                 if (0 == buf->vb.baddr)
2564                         goto fh_unlock_and_return;
2565                 if (buf->vb.state == STATE_QUEUED ||
2566                     buf->vb.state == STATE_ACTIVE)
2567                         goto fh_unlock_and_return;
2568
2569                 field = (vm->height > bttv_tvnorms[btv->tvnorm].sheight/2)
2570                         ? V4L2_FIELD_INTERLACED
2571                         : V4L2_FIELD_BOTTOM;
2572                 retval = bttv_prepare_buffer(&fh->cap,btv,buf,
2573                                              format_by_palette(vm->format),
2574                                              vm->width,vm->height,field);
2575                 if (0 != retval)
2576                         goto fh_unlock_and_return;
2577                 spin_lock_irqsave(&btv->s_lock,flags);
2578                 buffer_queue(&fh->cap,&buf->vb);
2579                 spin_unlock_irqrestore(&btv->s_lock,flags);
2580                 mutex_unlock(&fh->cap.lock);
2581                 return 0;
2582         }
2583         case VIDIOCSYNC:
2584         {
2585                 int *frame = arg;
2586                 struct bttv_buffer *buf;
2587
2588                 if (*frame >= VIDEO_MAX_FRAME)
2589                         return -EINVAL;
2590
2591                 mutex_lock(&fh->cap.lock);
2592                 retval = -EINVAL;
2593                 buf = (struct bttv_buffer *)fh->cap.bufs[*frame];
2594                 if (NULL == buf)
2595                         goto fh_unlock_and_return;
2596                 retval = videobuf_waiton(&buf->vb,0,1);
2597                 if (0 != retval)
2598                         goto fh_unlock_and_return;
2599                 switch (buf->vb.state) {
2600                 case STATE_ERROR:
2601                         retval = -EIO;
2602                         /* fall through */
2603                 case STATE_DONE:
2604                         videobuf_dma_sync(&fh->cap,&buf->vb.dma);
2605                         bttv_dma_free(&fh->cap,btv,buf);
2606                         break;
2607                 default:
2608                         retval = -EINVAL;
2609                         break;
2610                 }
2611                 mutex_unlock(&fh->cap.lock);
2612                 return retval;
2613         }
2614
2615         case VIDIOCGVBIFMT:
2616         {
2617                 struct vbi_format *fmt = (void *) arg;
2618                 struct v4l2_format fmt2;
2619
2620                 if (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE) {
2621                         retval = bttv_switch_type(fh,V4L2_BUF_TYPE_VBI_CAPTURE);
2622                         if (0 != retval)
2623                                 return retval;
2624                 }
2625                 bttv_vbi_get_fmt(fh, &fmt2);
2626
2627                 memset(fmt,0,sizeof(*fmt));
2628                 fmt->sampling_rate    = fmt2.fmt.vbi.sampling_rate;
2629                 fmt->samples_per_line = fmt2.fmt.vbi.samples_per_line;
2630                 fmt->sample_format    = VIDEO_PALETTE_RAW;
2631                 fmt->start[0]         = fmt2.fmt.vbi.start[0];
2632                 fmt->count[0]         = fmt2.fmt.vbi.count[0];
2633                 fmt->start[1]         = fmt2.fmt.vbi.start[1];
2634                 fmt->count[1]         = fmt2.fmt.vbi.count[1];
2635                 if (fmt2.fmt.vbi.flags & V4L2_VBI_UNSYNC)
2636                         fmt->flags   |= VBI_UNSYNC;
2637                 if (fmt2.fmt.vbi.flags & V4L2_VBI_INTERLACED)
2638                         fmt->flags   |= VBI_INTERLACED;
2639                 return 0;
2640         }
2641         case VIDIOCSVBIFMT:
2642         {
2643                 struct vbi_format *fmt = (void *) arg;
2644                 struct v4l2_format fmt2;
2645
2646                 retval = bttv_switch_type(fh,V4L2_BUF_TYPE_VBI_CAPTURE);
2647                 if (0 != retval)
2648                         return retval;
2649                 bttv_vbi_get_fmt(fh, &fmt2);
2650
2651                 if (fmt->sampling_rate    != fmt2.fmt.vbi.sampling_rate     ||
2652                     fmt->samples_per_line != fmt2.fmt.vbi.samples_per_line  ||
2653                     fmt->sample_format    != VIDEO_PALETTE_RAW              ||
2654                     fmt->start[0]         != fmt2.fmt.vbi.start[0]          ||
2655                     fmt->start[1]         != fmt2.fmt.vbi.start[1]          ||
2656                     fmt->count[0]         != fmt->count[1]                  ||
2657                     fmt->count[0]         <  1                              ||
2658                     fmt->count[0]         >  32 /* VBI_MAXLINES */)
2659                         return -EINVAL;
2660
2661                 bttv_vbi_setlines(fh,btv,fmt->count[0]);
2662                 return 0;
2663         }
2664
2665         case BTTV_VERSION:
2666         case VIDIOCGFREQ:
2667         case VIDIOCSFREQ:
2668         case VIDIOCGTUNER:
2669         case VIDIOCSTUNER:
2670         case VIDIOCGCHAN:
2671         case VIDIOCSCHAN:
2672         case VIDIOCGAUDIO:
2673         case VIDIOCSAUDIO:
2674                 return bttv_common_ioctls(btv,cmd,arg);
2675
2676         /* ***  v4l2  *** ************************************************ */
2677         case VIDIOC_QUERYCAP:
2678         {
2679                 struct v4l2_capability *cap = arg;
2680
2681                 if (0 == v4l2)
2682                         return -EINVAL;
2683                 memset(cap, 0, sizeof (*cap));
2684                 strlcpy(cap->driver, "bttv", sizeof (cap->driver));
2685                 strlcpy(cap->card, btv->video_dev->name, sizeof (cap->card));
2686                 snprintf(cap->bus_info, sizeof (cap->bus_info),
2687                          "PCI:%s", pci_name(btv->c.pci));
2688                 cap->version = BTTV_VERSION_CODE;
2689                 cap->capabilities =
2690                         V4L2_CAP_VIDEO_CAPTURE |
2691                         V4L2_CAP_VBI_CAPTURE |
2692                         V4L2_CAP_READWRITE |
2693                         V4L2_CAP_STREAMING;
2694                 if (no_overlay <= 0)
2695                         cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
2696
2697                 if (bttv_tvcards[btv->c.type].tuner != UNSET &&
2698                     bttv_tvcards[btv->c.type].tuner != TUNER_ABSENT)
2699                         cap->capabilities |= V4L2_CAP_TUNER;
2700                 return 0;
2701         }
2702
2703         case VIDIOC_ENUM_FMT:
2704         {
2705                 struct v4l2_fmtdesc *f = arg;
2706                 enum v4l2_buf_type type;
2707                 unsigned int i;
2708                 int index;
2709
2710                 type  = f->type;
2711                 if (V4L2_BUF_TYPE_VBI_CAPTURE == type) {
2712                         /* vbi */
2713                         index = f->index;
2714                         if (0 != index)
2715                                 return -EINVAL;
2716                         memset(f,0,sizeof(*f));
2717                         f->index       = index;
2718                         f->type        = type;
2719                         f->pixelformat = V4L2_PIX_FMT_GREY;
2720                         strcpy(f->description,"vbi data");
2721                         return 0;
2722                 }
2723
2724                 /* video capture + overlay */
2725                 index = -1;
2726                 for (i = 0; i < BTTV_FORMATS; i++) {
2727                         if (bttv_formats[i].fourcc != -1)
2728                                 index++;
2729                         if ((unsigned int)index == f->index)
2730                                 break;
2731                 }
2732                 if (BTTV_FORMATS == i)
2733                         return -EINVAL;
2734
2735                 switch (f->type) {
2736                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2737                         break;
2738                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2739                         if (!(bttv_formats[i].flags & FORMAT_FLAGS_PACKED))
2740                                 return -EINVAL;
2741                         break;
2742                 default:
2743                         return -EINVAL;
2744                 }
2745                 memset(f,0,sizeof(*f));
2746                 f->index       = index;
2747                 f->type        = type;
2748                 f->pixelformat = bttv_formats[i].fourcc;
2749                 strlcpy(f->description,bttv_formats[i].name,sizeof(f->description));
2750                 return 0;
2751         }
2752
2753         case VIDIOC_TRY_FMT:
2754         {
2755                 struct v4l2_format *f = arg;
2756                 return bttv_try_fmt(fh,btv,f);
2757         }
2758         case VIDIOC_G_FMT:
2759         {
2760                 struct v4l2_format *f = arg;
2761                 return bttv_g_fmt(fh,f);
2762         }
2763         case VIDIOC_S_FMT:
2764         {
2765                 struct v4l2_format *f = arg;
2766                 return bttv_s_fmt(fh,btv,f);
2767         }
2768
2769         case VIDIOC_G_FBUF:
2770         {
2771                 struct v4l2_framebuffer *fb = arg;
2772
2773                 *fb = btv->fbuf;
2774                 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
2775                 if (fh->ovfmt)
2776                         fb->fmt.pixelformat  = fh->ovfmt->fourcc;
2777                 return 0;
2778         }
2779         case VIDIOC_S_FBUF:
2780         {
2781                 struct v4l2_framebuffer *fb = arg;
2782                 const struct bttv_format *fmt;
2783
2784                 if(!capable(CAP_SYS_ADMIN) &&
2785                    !capable(CAP_SYS_RAWIO))
2786                         return -EPERM;
2787
2788                 /* check args */
2789                 fmt = format_by_fourcc(fb->fmt.pixelformat);
2790                 if (NULL == fmt)
2791                         return -EINVAL;
2792                 if (0 == (fmt->flags & FORMAT_FLAGS_PACKED))
2793                         return -EINVAL;
2794
2795                 mutex_lock(&fh->cap.lock);
2796                 retval = -EINVAL;
2797                 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2798                         if (fb->fmt.width > bttv_tvnorms[btv->tvnorm].swidth)
2799                                 goto fh_unlock_and_return;
2800                         if (fb->fmt.height > bttv_tvnorms[btv->tvnorm].sheight)
2801                                 goto fh_unlock_and_return;
2802                 }
2803
2804                 /* ok, accept it */
2805                 btv->fbuf.base       = fb->base;
2806                 btv->fbuf.fmt.width  = fb->fmt.width;
2807                 btv->fbuf.fmt.height = fb->fmt.height;
2808                 if (0 != fb->fmt.bytesperline)
2809                         btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline;
2810                 else
2811                         btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8;
2812
2813                 retval = 0;
2814                 fh->ovfmt = fmt;
2815                 btv->init.ovfmt = fmt;
2816                 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2817                         fh->ov.w.left   = 0;
2818                         fh->ov.w.top    = 0;
2819                         fh->ov.w.width  = fb->fmt.width;
2820                         fh->ov.w.height = fb->fmt.height;
2821                         btv->init.ov.w.width  = fb->fmt.width;
2822                         btv->init.ov.w.height = fb->fmt.height;
2823                                 kfree(fh->ov.clips);
2824                         fh->ov.clips = NULL;
2825                         fh->ov.nclips = 0;
2826
2827                         if (check_btres(fh, RESOURCE_OVERLAY)) {
2828                                 struct bttv_buffer *new;
2829
2830                                 new = videobuf_alloc(sizeof(*new));
2831                                 bttv_overlay_risc(btv,&fh->ov,fh->ovfmt,new);
2832                                 retval = bttv_switch_overlay(btv,fh,new);
2833                         }
2834                 }
2835                 mutex_unlock(&fh->cap.lock);
2836                 return retval;
2837         }
2838
2839         case VIDIOC_REQBUFS:
2840                 return videobuf_reqbufs(bttv_queue(fh),arg);
2841
2842         case VIDIOC_QUERYBUF:
2843                 return videobuf_querybuf(bttv_queue(fh),arg);
2844
2845         case VIDIOC_QBUF:
2846                 return videobuf_qbuf(bttv_queue(fh),arg);
2847
2848         case VIDIOC_DQBUF:
2849                 return videobuf_dqbuf(bttv_queue(fh),arg,
2850                                       file->f_flags & O_NONBLOCK);
2851
2852         case VIDIOC_STREAMON:
2853         {
2854                 int res = bttv_resource(fh);
2855
2856                 if (!check_alloc_btres(btv,fh,res))
2857                         return -EBUSY;
2858                 return videobuf_streamon(bttv_queue(fh));
2859         }
2860         case VIDIOC_STREAMOFF:
2861         {
2862                 int res = bttv_resource(fh);
2863
2864                 retval = videobuf_streamoff(bttv_queue(fh));
2865                 if (retval < 0)
2866                         return retval;
2867                 free_btres(btv,fh,res);
2868                 return 0;
2869         }
2870
2871         case VIDIOC_QUERYCTRL:
2872         {
2873                 struct v4l2_queryctrl *c = arg;
2874                 int i;
2875
2876                 if ((c->id <  V4L2_CID_BASE ||
2877                      c->id >= V4L2_CID_LASTP1) &&
2878                     (c->id <  V4L2_CID_PRIVATE_BASE ||
2879                      c->id >= V4L2_CID_PRIVATE_LASTP1))
2880                         return -EINVAL;
2881                 for (i = 0; i < BTTV_CTLS; i++)
2882                         if (bttv_ctls[i].id == c->id)
2883                                 break;
2884                 if (i == BTTV_CTLS) {
2885                         *c = no_ctl;
2886                         return 0;
2887                 }
2888                 *c = bttv_ctls[i];
2889                 if (btv->audio_hook && i >= 4 && i <= 8) {
2890                         struct video_audio va;
2891                         memset(&va,0,sizeof(va));
2892                         btv->audio_hook(btv,&va,0);
2893                         switch (bttv_ctls[i].id) {
2894                         case V4L2_CID_AUDIO_VOLUME:
2895                                 if (!(va.flags & VIDEO_AUDIO_VOLUME))
2896                                         *c = no_ctl;
2897                                 break;
2898                         case V4L2_CID_AUDIO_BALANCE:
2899                                 if (!(va.flags & VIDEO_AUDIO_BALANCE))
2900                                         *c = no_ctl;
2901                                 break;
2902                         case V4L2_CID_AUDIO_BASS:
2903                                 if (!(va.flags & VIDEO_AUDIO_BASS))
2904                                         *c = no_ctl;
2905                                 break;
2906                         case V4L2_CID_AUDIO_TREBLE:
2907                                 if (!(va.flags & VIDEO_AUDIO_TREBLE))
2908                                         *c = no_ctl;
2909                                 break;
2910                         }
2911                 }
2912                 return 0;
2913         }
2914         case VIDIOC_G_CTRL:
2915                 return get_control(btv,arg);
2916         case VIDIOC_S_CTRL:
2917                 return set_control(btv,arg);
2918         case VIDIOC_G_PARM:
2919         {
2920                 struct v4l2_streamparm *parm = arg;
2921                 struct v4l2_standard s;
2922                 if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
2923                         return -EINVAL;
2924                 memset(parm,0,sizeof(*parm));
2925                 v4l2_video_std_construct(&s, bttv_tvnorms[btv->tvnorm].v4l2_id,
2926                                          bttv_tvnorms[btv->tvnorm].name);
2927                 parm->parm.capture.timeperframe = s.frameperiod;
2928                 return 0;
2929         }
2930
2931         case VIDIOC_G_PRIORITY:
2932         {
2933                 enum v4l2_priority *p = arg;
2934
2935                 *p = v4l2_prio_max(&btv->prio);
2936                 return 0;
2937         }
2938         case VIDIOC_S_PRIORITY:
2939         {
2940                 enum v4l2_priority *prio = arg;
2941
2942                 return v4l2_prio_change(&btv->prio, &fh->prio, *prio);
2943         }
2944
2945         case VIDIOC_ENUMSTD:
2946         case VIDIOC_G_STD:
2947         case VIDIOC_S_STD:
2948         case VIDIOC_ENUMINPUT:
2949         case VIDIOC_G_INPUT:
2950         case VIDIOC_S_INPUT:
2951         case VIDIOC_G_TUNER:
2952         case VIDIOC_S_TUNER:
2953         case VIDIOC_G_FREQUENCY:
2954         case VIDIOC_S_FREQUENCY:
2955         case VIDIOC_LOG_STATUS:
2956                 return bttv_common_ioctls(btv,cmd,arg);
2957
2958         default:
2959                 return -ENOIOCTLCMD;
2960         }
2961         return 0;
2962
2963  fh_unlock_and_return:
2964         mutex_unlock(&fh->cap.lock);
2965         return retval;
2966 }
2967
2968 static int bttv_ioctl(struct inode *inode, struct file *file,
2969                       unsigned int cmd, unsigned long arg)
2970 {
2971         struct bttv_fh *fh  = file->private_data;
2972
2973         switch (cmd) {
2974         case BTTV_VBISIZE:
2975                 bttv_switch_type(fh,V4L2_BUF_TYPE_VBI_CAPTURE);
2976                 return fh->lines * 2 * 2048;
2977         default:
2978                 return video_usercopy(inode, file, cmd, arg, bttv_do_ioctl);
2979         }
2980 }
2981
2982 static ssize_t bttv_read(struct file *file, char __user *data,
2983                          size_t count, loff_t *ppos)
2984 {
2985         struct bttv_fh *fh = file->private_data;
2986         int retval = 0;
2987
2988         if (fh->btv->errors)
2989                 bttv_reinit_bt848(fh->btv);
2990         dprintk("bttv%d: read count=%d type=%s\n",
2991                 fh->btv->c.nr,(int)count,v4l2_type_names[fh->type]);
2992
2993         switch (fh->type) {
2994         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2995                 if (locked_btres(fh->btv,RESOURCE_VIDEO))
2996                         return -EBUSY;
2997                 retval = videobuf_read_one(&fh->cap, data, count, ppos,
2998                                            file->f_flags & O_NONBLOCK);
2999                 break;
3000         case V4L2_BUF_TYPE_VBI_CAPTURE:
3001                 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
3002                         return -EBUSY;
3003                 retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1,
3004                                               file->f_flags & O_NONBLOCK);
3005                 break;
3006         default:
3007                 BUG();
3008         }
3009         return retval;
3010 }
3011
3012 static unsigned int bttv_poll(struct file *file, poll_table *wait)
3013 {
3014         struct bttv_fh *fh = file->private_data;
3015         struct bttv_buffer *buf;
3016         enum v4l2_field field;
3017
3018         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
3019                 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
3020                         return POLLERR;
3021                 return videobuf_poll_stream(file, &fh->vbi, wait);
3022         }
3023
3024         if (check_btres(fh,RESOURCE_VIDEO)) {
3025                 /* streaming capture */
3026                 if (list_empty(&fh->cap.stream))
3027                         return POLLERR;
3028                 buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
3029         } else {
3030                 /* read() capture */
3031                 mutex_lock(&fh->cap.lock);
3032                 if (NULL == fh->cap.read_buf) {
3033                         /* need to capture a new frame */
3034                         if (locked_btres(fh->btv,RESOURCE_VIDEO)) {
3035                                 mutex_unlock(&fh->cap.lock);
3036                                 return POLLERR;
3037                         }
3038                         fh->cap.read_buf = videobuf_alloc(fh->cap.msize);
3039                         if (NULL == fh->cap.read_buf) {
3040                                 mutex_unlock(&fh->cap.lock);
3041                                 return POLLERR;
3042                         }
3043                         fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR;
3044                         field = videobuf_next_field(&fh->cap);
3045                         if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) {
3046                                 kfree (fh->cap.read_buf);
3047                                 fh->cap.read_buf = NULL;
3048                                 mutex_unlock(&fh->cap.lock);
3049                                 return POLLERR;
3050                         }
3051                         fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
3052                         fh->cap.read_off = 0;
3053                 }
3054                 mutex_unlock(&fh->cap.lock);
3055                 buf = (struct bttv_buffer*)fh->cap.read_buf;
3056         }
3057
3058         poll_wait(file, &buf->vb.done, wait);
3059         if (buf->vb.state == STATE_DONE ||
3060             buf->vb.state == STATE_ERROR)
3061                 return POLLIN|POLLRDNORM;
3062         return 0;
3063 }
3064
3065 static int bttv_open(struct inode *inode, struct file *file)
3066 {
3067         int minor = iminor(inode);
3068         struct bttv *btv = NULL;
3069         struct bttv_fh *fh;
3070         enum v4l2_buf_type type = 0;
3071         unsigned int i;
3072
3073         dprintk(KERN_DEBUG "bttv: open minor=%d\n",minor);
3074
3075         for (i = 0; i < bttv_num; i++) {
3076                 if (bttvs[i].video_dev &&
3077                     bttvs[i].video_dev->minor == minor) {
3078                         btv = &bttvs[i];
3079                         type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3080                         break;
3081                 }
3082                 if (bttvs[i].vbi_dev &&
3083                     bttvs[i].vbi_dev->minor == minor) {
3084                         btv = &bttvs[i];
3085                         type = V4L2_BUF_TYPE_VBI_CAPTURE;
3086                         break;
3087                 }
3088         }
3089         if (NULL == btv)
3090                 return -ENODEV;
3091
3092         dprintk(KERN_DEBUG "bttv%d: open called (type=%s)\n",
3093                 btv->c.nr,v4l2_type_names[type]);
3094
3095         /* allocate per filehandle data */
3096         fh = kmalloc(sizeof(*fh),GFP_KERNEL);
3097         if (NULL == fh)
3098                 return -ENOMEM;
3099         file->private_data = fh;
3100         *fh = btv->init;
3101         fh->type = type;
3102         fh->ov.setup_ok = 0;
3103         v4l2_prio_open(&btv->prio,&fh->prio);
3104
3105         videobuf_queue_init(&fh->cap, &bttv_video_qops,
3106                             btv->c.pci, &btv->s_lock,
3107                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
3108                             V4L2_FIELD_INTERLACED,
3109                             sizeof(struct bttv_buffer),
3110                             fh);
3111         videobuf_queue_init(&fh->vbi, &bttv_vbi_qops,
3112                             btv->c.pci, &btv->s_lock,
3113                             V4L2_BUF_TYPE_VBI_CAPTURE,
3114                             V4L2_FIELD_SEQ_TB,
3115                             sizeof(struct bttv_buffer),
3116                             fh);
3117         i2c_vidiocschan(btv);
3118
3119         btv->users++;
3120         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)
3121                 bttv_vbi_setlines(fh,btv,16);
3122         bttv_field_count(btv);
3123         return 0;
3124 }
3125
3126 static int bttv_release(struct inode *inode, struct file *file)
3127 {
3128         struct bttv_fh *fh = file->private_data;
3129         struct bttv *btv = fh->btv;
3130
3131         /* turn off overlay */
3132         if (check_btres(fh, RESOURCE_OVERLAY))
3133                 bttv_switch_overlay(btv,fh,NULL);
3134
3135         /* stop video capture */
3136         if (check_btres(fh, RESOURCE_VIDEO)) {
3137                 videobuf_streamoff(&fh->cap);
3138                 free_btres(btv,fh,RESOURCE_VIDEO);
3139         }
3140         if (fh->cap.read_buf) {
3141                 buffer_release(&fh->cap,fh->cap.read_buf);
3142                 kfree(fh->cap.read_buf);
3143         }
3144
3145         /* stop vbi capture */
3146         if (check_btres(fh, RESOURCE_VBI)) {
3147                 if (fh->vbi.streaming)
3148                         videobuf_streamoff(&fh->vbi);
3149                 if (fh->vbi.reading)
3150                         videobuf_read_stop(&fh->vbi);
3151                 free_btres(btv,fh,RESOURCE_VBI);
3152         }
3153
3154         /* free stuff */
3155         videobuf_mmap_free(&fh->cap);
3156         videobuf_mmap_free(&fh->vbi);
3157         v4l2_prio_close(&btv->prio,&fh->prio);
3158         file->private_data = NULL;
3159         kfree(fh);
3160
3161         btv->users--;
3162         bttv_field_count(btv);
3163         return 0;
3164 }
3165
3166 static int
3167 bttv_mmap(struct file *file, struct vm_area_struct *vma)
3168 {
3169         struct bttv_fh *fh = file->private_data;
3170
3171         dprintk("bttv%d: mmap type=%s 0x%lx+%ld\n",
3172                 fh->btv->c.nr, v4l2_type_names[fh->type],
3173                 vma->vm_start, vma->vm_end - vma->vm_start);
3174         return videobuf_mmap_mapper(bttv_queue(fh),vma);
3175 }
3176
3177 static const struct file_operations bttv_fops =
3178 {
3179         .owner    = THIS_MODULE,
3180         .open     = bttv_open,
3181         .release  = bttv_release,
3182         .ioctl    = bttv_ioctl,
3183         .compat_ioctl   = v4l_compat_ioctl32,
3184         .llseek   = no_llseek,
3185         .read     = bttv_read,
3186         .mmap     = bttv_mmap,
3187         .poll     = bttv_poll,
3188 };
3189
3190 static struct video_device bttv_video_template =
3191 {
3192         .name     = "UNSET",
3193         .type     = VID_TYPE_CAPTURE|VID_TYPE_TUNER|
3194                     VID_TYPE_CLIPPING|VID_TYPE_SCALES,
3195         .hardware = VID_HARDWARE_BT848,
3196         .fops     = &bttv_fops,
3197         .minor    = -1,
3198 };
3199
3200 static struct video_device bttv_vbi_template =
3201 {
3202         .name     = "bt848/878 vbi",
3203         .type     = VID_TYPE_TUNER|VID_TYPE_TELETEXT,
3204         .hardware = VID_HARDWARE_BT848,
3205         .fops     = &bttv_fops,
3206         .minor    = -1,
3207 };
3208
3209 /* ----------------------------------------------------------------------- */
3210 /* radio interface                                                         */
3211
3212 static int radio_open(struct inode *inode, struct file *file)
3213 {
3214         int minor = iminor(inode);
3215         struct bttv *btv = NULL;
3216         unsigned int i;
3217
3218         dprintk("bttv: open minor=%d\n",minor);
3219
3220         for (i = 0; i < bttv_num; i++) {
3221                 if (bttvs[i].radio_dev->minor == minor) {
3222                         btv = &bttvs[i];
3223                         break;
3224                 }
3225         }
3226         if (NULL == btv)
3227                 return -ENODEV;
3228
3229         dprintk("bttv%d: open called (radio)\n",btv->c.nr);
3230         mutex_lock(&btv->lock);
3231
3232         btv->radio_user++;
3233
3234         file->private_data = btv;
3235
3236         bttv_call_i2c_clients(btv,AUDC_SET_RADIO,NULL);
3237         audio_input(btv,TVAUDIO_INPUT_RADIO);
3238
3239         mutex_unlock(&btv->lock);
3240         return 0;
3241 }
3242
3243 static int radio_release(struct inode *inode, struct file *file)
3244 {
3245         struct bttv        *btv = file->private_data;
3246         struct rds_command cmd;
3247
3248         btv->radio_user--;
3249
3250         bttv_call_i2c_clients(btv, RDS_CMD_CLOSE, &cmd);
3251
3252         return 0;
3253 }
3254
3255 static int radio_do_ioctl(struct inode *inode, struct file *file,
3256                           unsigned int cmd, void *arg)
3257 {
3258         struct bttv    *btv = file->private_data;
3259
3260         switch (cmd) {
3261         case VIDIOCGCAP:
3262         {
3263                 struct video_capability *cap = arg;
3264
3265                 memset(cap,0,sizeof(*cap));
3266                 strcpy(cap->name,btv->radio_dev->name);
3267                 cap->type = VID_TYPE_TUNER;
3268                 cap->channels = 1;
3269                 cap->audios = 1;
3270                 return 0;
3271         }
3272
3273         case VIDIOCGTUNER:
3274         {
3275                 struct video_tuner *v = arg;
3276
3277                 if(v->tuner)
3278                         return -EINVAL;
3279                 memset(v,0,sizeof(*v));
3280                 strcpy(v->name, "Radio");
3281                 bttv_call_i2c_clients(btv,cmd,v);
3282                 return 0;
3283         }
3284         case VIDIOCSTUNER:
3285                 /* nothing to do */
3286                 return 0;
3287
3288         case BTTV_VERSION:
3289         case VIDIOCGFREQ:
3290         case VIDIOCSFREQ:
3291         case VIDIOCGAUDIO:
3292         case VIDIOCSAUDIO:
3293         case VIDIOC_LOG_STATUS:
3294                 return bttv_common_ioctls(btv,cmd,arg);
3295
3296         default:
3297                 return -ENOIOCTLCMD;
3298         }
3299         return 0;
3300 }
3301
3302 static int radio_ioctl(struct inode *inode, struct file *file,
3303                        unsigned int cmd, unsigned long arg)
3304 {
3305         return video_usercopy(inode, file, cmd, arg, radio_do_ioctl);
3306 }
3307
3308 static ssize_t radio_read(struct file *file, char __user *data,
3309                          size_t count, loff_t *ppos)
3310 {
3311         struct bttv    *btv = file->private_data;
3312         struct rds_command cmd;
3313         cmd.block_count = count/3;
3314         cmd.buffer = data;
3315         cmd.instance = file;
3316         cmd.result = -ENODEV;
3317
3318         bttv_call_i2c_clients(btv, RDS_CMD_READ, &cmd);
3319
3320         return cmd.result;
3321 }
3322
3323 static unsigned int radio_poll(struct file *file, poll_table *wait)
3324 {
3325         struct bttv    *btv = file->private_data;
3326         struct rds_command cmd;
3327         cmd.instance = file;
3328         cmd.event_list = wait;
3329         cmd.result = -ENODEV;
3330         bttv_call_i2c_clients(btv, RDS_CMD_POLL, &cmd);
3331
3332         return cmd.result;
3333 }
3334
3335 static const struct file_operations radio_fops =
3336 {
3337         .owner    = THIS_MODULE,
3338         .open     = radio_open,
3339         .read     = radio_read,
3340         .release  = radio_release,
3341         .ioctl    = radio_ioctl,
3342         .llseek   = no_llseek,
3343         .poll     = radio_poll,
3344 };
3345
3346 static struct video_device radio_template =
3347 {
3348         .name     = "bt848/878 radio",
3349         .type     = VID_TYPE_TUNER,
3350         .hardware = VID_HARDWARE_BT848,
3351         .fops     = &radio_fops,
3352         .minor    = -1,
3353 };
3354
3355 /* ----------------------------------------------------------------------- */
3356 /* some debug code                                                         */
3357
3358 static int bttv_risc_decode(u32 risc)
3359 {
3360         static char *instr[16] = {
3361                 [ BT848_RISC_WRITE     >> 28 ] = "write",
3362                 [ BT848_RISC_SKIP      >> 28 ] = "skip",
3363                 [ BT848_RISC_WRITEC    >> 28 ] = "writec",
3364                 [ BT848_RISC_JUMP      >> 28 ] = "jump",
3365                 [ BT848_RISC_SYNC      >> 28 ] = "sync",
3366                 [ BT848_RISC_WRITE123  >> 28 ] = "write123",
3367                 [ BT848_RISC_SKIP123   >> 28 ] = "skip123",
3368                 [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23",
3369         };
3370         static int incr[16] = {
3371                 [ BT848_RISC_WRITE     >> 28 ] = 2,
3372                 [ BT848_RISC_JUMP      >> 28 ] = 2,
3373                 [ BT848_RISC_SYNC      >> 28 ] = 2,
3374                 [ BT848_RISC_WRITE123  >> 28 ] = 5,
3375                 [ BT848_RISC_SKIP123   >> 28 ] = 2,
3376                 [ BT848_RISC_WRITE1S23 >> 28 ] = 3,
3377         };
3378         static char *bits[] = {
3379                 "be0",  "be1",  "be2",  "be3/resync",
3380                 "set0", "set1", "set2", "set3",
3381                 "clr0", "clr1", "clr2", "clr3",
3382                 "irq",  "res",  "eol",  "sol",
3383         };
3384         int i;
3385
3386         printk("0x%08x [ %s", risc,
3387                instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
3388         for (i = ARRAY_SIZE(bits)-1; i >= 0; i--)
3389                 if (risc & (1 << (i + 12)))
3390                         printk(" %s",bits[i]);
3391         printk(" count=%d ]\n", risc & 0xfff);
3392         return incr[risc >> 28] ? incr[risc >> 28] : 1;
3393 }
3394
3395 static void bttv_risc_disasm(struct bttv *btv,
3396                              struct btcx_riscmem *risc)
3397 {
3398         unsigned int i,j,n;
3399
3400         printk("%s: risc disasm: %p [dma=0x%08lx]\n",
3401                btv->c.name, risc->cpu, (unsigned long)risc->dma);
3402         for (i = 0; i < (risc->size >> 2); i += n) {
3403                 printk("%s:   0x%lx: ", btv->c.name,
3404                        (unsigned long)(risc->dma + (i<<2)));
3405                 n = bttv_risc_decode(risc->cpu[i]);
3406                 for (j = 1; j < n; j++)
3407                         printk("%s:   0x%lx: 0x%08x [ arg #%d ]\n",
3408                                btv->c.name, (unsigned long)(risc->dma + ((i+j)<<2)),
3409                                risc->cpu[i+j], j);
3410                 if (0 == risc->cpu[i])
3411                         break;
3412         }
3413 }
3414
3415 static void bttv_print_riscaddr(struct bttv *btv)
3416 {
3417         printk("  main: %08Lx\n",
3418                (unsigned long long)btv->main.dma);
3419         printk("  vbi : o=%08Lx e=%08Lx\n",
3420                btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0,
3421                btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0);
3422         printk("  cap : o=%08Lx e=%08Lx\n",
3423                btv->curr.top    ? (unsigned long long)btv->curr.top->top.dma : 0,
3424                btv->curr.bottom ? (unsigned long long)btv->curr.bottom->bottom.dma : 0);
3425         printk("  scr : o=%08Lx e=%08Lx\n",
3426                btv->screen ? (unsigned long long)btv->screen->top.dma : 0,
3427                btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0);
3428         bttv_risc_disasm(btv, &btv->main);
3429 }
3430
3431 /* ----------------------------------------------------------------------- */
3432 /* irq handler                                                             */
3433
3434 static char *irq_name[] = {
3435         "FMTCHG",  // format change detected (525 vs. 625)
3436         "VSYNC",   // vertical sync (new field)
3437         "HSYNC",   // horizontal sync
3438         "OFLOW",   // chroma/luma AGC overflow
3439         "HLOCK",   // horizontal lock changed
3440         "VPRES",   // video presence changed
3441         "6", "7",
3442         "I2CDONE", // hw irc operation finished
3443         "GPINT",   // gpio port triggered irq
3444         "10",
3445         "RISCI",   // risc instruction triggered irq
3446         "FBUS",    // pixel data fifo dropped data (high pci bus latencies)
3447         "FTRGT",   // pixel data fifo overrun
3448         "FDSR",    // fifo data stream resyncronisation
3449         "PPERR",   // parity error (data transfer)
3450         "RIPERR",  // parity error (read risc instructions)
3451         "PABORT",  // pci abort
3452         "OCERR",   // risc instruction error
3453         "SCERR",   // syncronisation error
3454 };
3455
3456 static void bttv_print_irqbits(u32 print, u32 mark)
3457 {
3458         unsigned int i;
3459
3460         printk("bits:");
3461         for (i = 0; i < ARRAY_SIZE(irq_name); i++) {
3462                 if (print & (1 << i))
3463                         printk(" %s",irq_name[i]);
3464                 if (mark & (1 << i))
3465                         printk("*");
3466         }
3467 }
3468
3469 static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc)
3470 {
3471         printk("bttv%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n",
3472                btv->c.nr,
3473                (unsigned long)btv->main.dma,
3474                (unsigned long)btv->main.cpu[RISC_SLOT_O_VBI+1],
3475                (unsigned long)btv->main.cpu[RISC_SLOT_O_FIELD+1],
3476                (unsigned long)rc);
3477
3478         if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) {
3479                 printk("bttv%d: Oh, there (temporarely?) is no input signal. "
3480                        "Ok, then this is harmless, don't worry ;)\n",
3481                        btv->c.nr);
3482                 return;
3483         }
3484         printk("bttv%d: Uhm. Looks like we have unusual high IRQ latencies.\n",
3485                btv->c.nr);
3486         printk("bttv%d: Lets try to catch the culpit red-handed ...\n",
3487                btv->c.nr);
3488         dump_stack();
3489 }
3490
3491 static int
3492 bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set)
3493 {
3494         struct bttv_buffer *item;
3495
3496         memset(set,0,sizeof(*set));
3497
3498         /* capture request ? */
3499         if (!list_empty(&btv->capture)) {
3500                 set->frame_irq = 1;
3501                 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3502                 if (V4L2_FIELD_HAS_TOP(item->vb.field))
3503                         set->top    = item;
3504                 if (V4L2_FIELD_HAS_BOTTOM(item->vb.field))
3505                         set->bottom = item;
3506
3507                 /* capture request for other field ? */
3508                 if (!V4L2_FIELD_HAS_BOTH(item->vb.field) &&
3509                     (item->vb.queue.next != &btv->capture)) {
3510                         item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue);
3511                         if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) {
3512                                 if (NULL == set->top &&
3513                                     V4L2_FIELD_TOP == item->vb.field) {
3514                                         set->top = item;
3515                                 }
3516                                 if (NULL == set->bottom &&
3517                                     V4L2_FIELD_BOTTOM == item->vb.field) {
3518                                         set->bottom = item;
3519                                 }
3520                                 if (NULL != set->top  &&  NULL != set->bottom)
3521                                         set->top_irq = 2;
3522                         }
3523                 }
3524         }
3525
3526         /* screen overlay ? */
3527         if (NULL != btv->screen) {
3528                 if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) {
3529                         if (NULL == set->top && NULL == set->bottom) {
3530                                 set->top    = btv->screen;
3531                                 set->bottom = btv->screen;
3532                         }
3533                 } else {
3534                         if (V4L2_FIELD_TOP == btv->screen->vb.field &&
3535                             NULL == set->top) {
3536                                 set->top = btv->screen;
3537                         }
3538                         if (V4L2_FIELD_BOTTOM == btv->screen->vb.field &&
3539                             NULL == set->bottom) {
3540                                 set->bottom = btv->screen;
3541                         }
3542                 }
3543         }
3544
3545         dprintk("bttv%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n",
3546                 btv->c.nr,set->top, set->bottom,
3547                 btv->screen,set->frame_irq,set->top_irq);
3548         return 0;
3549 }
3550
3551 static void
3552 bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup,
3553                       struct bttv_buffer_set *curr, unsigned int state)
3554 {
3555         struct timeval ts;
3556
3557         do_gettimeofday(&ts);
3558
3559         if (wakeup->top == wakeup->bottom) {
3560                 if (NULL != wakeup->top && curr->top != wakeup->top) {
3561                         if (irq_debug > 1)
3562                                 printk("bttv%d: wakeup: both=%p\n",btv->c.nr,wakeup->top);
3563                         wakeup->top->vb.ts = ts;
3564                         wakeup->top->vb.field_count = btv->field_count;
3565                         wakeup->top->vb.state = state;
3566                         wake_up(&wakeup->top->vb.done);
3567                 }
3568         } else {
3569                 if (NULL != wakeup->top && curr->top != wakeup->top) {
3570                         if (irq_debug > 1)
3571                                 printk("bttv%d: wakeup: top=%p\n",btv->c.nr,wakeup->top);
3572                         wakeup->top->vb.ts = ts;
3573                         wakeup->top->vb.field_count = btv->field_count;
3574                         wakeup->top->vb.state = state;
3575                         wake_up(&wakeup->top->vb.done);
3576                 }
3577                 if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) {
3578                         if (irq_debug > 1)
3579                                 printk("bttv%d: wakeup: bottom=%p\n",btv->c.nr,wakeup->bottom);
3580                         wakeup->bottom->vb.ts = ts;
3581                         wakeup->bottom->vb.field_count = btv->field_count;
3582                         wakeup->bottom->vb.state = state;
3583                         wake_up(&wakeup->bottom->vb.done);
3584                 }
3585         }
3586 }
3587
3588 static void
3589 bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup,
3590                     unsigned int state)
3591 {
3592         struct timeval ts;
3593
3594         if (NULL == wakeup)
3595                 return;
3596
3597         do_gettimeofday(&ts);
3598         wakeup->vb.ts = ts;
3599         wakeup->vb.field_count = btv->field_count;
3600         wakeup->vb.state = state;
3601         wake_up(&wakeup->vb.done);
3602 }
3603
3604 static void bttv_irq_timeout(unsigned long data)
3605 {
3606         struct bttv *btv = (struct bttv *)data;
3607         struct bttv_buffer_set old,new;
3608         struct bttv_buffer *ovbi;
3609         struct bttv_buffer *item;
3610         unsigned long flags;
3611
3612         if (bttv_verbose) {
3613                 printk(KERN_INFO "bttv%d: timeout: drop=%d irq=%d/%d, risc=%08x, ",
3614                        btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total,
3615                        btread(BT848_RISC_COUNT));
3616                 bttv_print_irqbits(btread(BT848_INT_STAT),0);
3617                 printk("\n");
3618         }
3619
3620         spin_lock_irqsave(&btv->s_lock,flags);
3621
3622         /* deactivate stuff */
3623         memset(&new,0,sizeof(new));
3624         old  = btv->curr;
3625         ovbi = btv->cvbi;
3626         btv->curr = new;
3627         btv->cvbi = NULL;
3628         btv->loop_irq = 0;
3629         bttv_buffer_activate_video(btv, &new);
3630         bttv_buffer_activate_vbi(btv,   NULL);
3631         bttv_set_dma(btv, 0);
3632
3633         /* wake up */
3634         bttv_irq_wakeup_video(btv, &old, &new, STATE_ERROR);
3635         bttv_irq_wakeup_vbi(btv, ovbi, STATE_ERROR);
3636
3637         /* cancel all outstanding capture / vbi requests */
3638         while (!list_empty(&btv->capture)) {
3639                 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3640                 list_del(&item->vb.queue);
3641                 item->vb.state = STATE_ERROR;
3642                 wake_up(&item->vb.done);
3643         }
3644         while (!list_empty(&btv->vcapture)) {
3645                 item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3646                 list_del(&item->vb.queue);
3647                 item->vb.state = STATE_ERROR;
3648                 wake_up(&item->vb.done);
3649         }
3650
3651         btv->errors++;
3652         spin_unlock_irqrestore(&btv->s_lock,flags);
3653 }
3654
3655 static void
3656 bttv_irq_wakeup_top(struct bttv *btv)
3657 {
3658         struct bttv_buffer *wakeup = btv->curr.top;
3659
3660         if (NULL == wakeup)
3661                 return;
3662
3663         spin_lock(&btv->s_lock);
3664         btv->curr.top_irq = 0;
3665         btv->curr.top = NULL;
3666         bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
3667
3668         do_gettimeofday(&wakeup->vb.ts);
3669         wakeup->vb.field_count = btv->field_count;
3670         wakeup->vb.state = STATE_DONE;
3671         wake_up(&wakeup->vb.done);
3672         spin_unlock(&btv->s_lock);
3673 }
3674
3675 static inline int is_active(struct btcx_riscmem *risc, u32 rc)
3676 {
3677         if (rc < risc->dma)
3678                 return 0;
3679         if (rc > risc->dma + risc->size)
3680                 return 0;
3681         return 1;
3682 }
3683
3684 static void
3685 bttv_irq_switch_video(struct bttv *btv)
3686 {
3687         struct bttv_buffer_set new;
3688         struct bttv_buffer_set old;
3689         dma_addr_t rc;
3690
3691         spin_lock(&btv->s_lock);
3692
3693         /* new buffer set */
3694         bttv_irq_next_video(btv, &new);
3695         rc = btread(BT848_RISC_COUNT);
3696         if ((btv->curr.top    && is_active(&btv->curr.top->top,       rc)) ||
3697             (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) {
3698                 btv->framedrop++;
3699                 if (debug_latency)
3700                         bttv_irq_debug_low_latency(btv, rc);
3701                 spin_unlock(&btv->s_lock);
3702                 return;
3703         }
3704
3705         /* switch over */
3706         old = btv->curr;
3707         btv->curr = new;
3708         btv->loop_irq &= ~1;
3709         bttv_buffer_activate_video(btv, &new);
3710         bttv_set_dma(btv, 0);
3711
3712         /* switch input */
3713         if (UNSET != btv->new_input) {
3714                 video_mux(btv,btv->new_input);
3715                 btv->new_input = UNSET;
3716         }
3717
3718         /* wake up finished buffers */
3719         bttv_irq_wakeup_video(btv, &old, &new, STATE_DONE);
3720         spin_unlock(&btv->s_lock);
3721 }
3722
3723 static void
3724 bttv_irq_switch_vbi(struct bttv *btv)
3725 {
3726         struct bttv_buffer *new = NULL;
3727         struct bttv_buffer *old;
3728         u32 rc;
3729
3730         spin_lock(&btv->s_lock);
3731
3732         if (!list_empty(&btv->vcapture))
3733                 new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3734         old = btv->cvbi;
3735
3736         rc = btread(BT848_RISC_COUNT);
3737         if (NULL != old && (is_active(&old->top,    rc) ||
3738                             is_active(&old->bottom, rc))) {
3739                 btv->framedrop++;
3740                 if (debug_latency)
3741                         bttv_irq_debug_low_latency(btv, rc);
3742                 spin_unlock(&btv->s_lock);
3743                 return;
3744         }
3745
3746         /* switch */
3747         btv->cvbi = new;
3748         btv->loop_irq &= ~4;
3749         bttv_buffer_activate_vbi(btv, new);
3750         bttv_set_dma(btv, 0);
3751
3752         bttv_irq_wakeup_vbi(btv, old, STATE_DONE);
3753         spin_unlock(&btv->s_lock);
3754 }
3755
3756 static irqreturn_t bttv_irq(int irq, void *dev_id)
3757 {
3758         u32 stat,astat;
3759         u32 dstat;
3760         int count;
3761         struct bttv *btv;
3762         int handled = 0;
3763
3764         btv=(struct bttv *)dev_id;
3765
3766         if (btv->custom_irq)
3767                 handled = btv->custom_irq(btv);
3768
3769         count=0;
3770         while (1) {
3771                 /* get/clear interrupt status bits */
3772                 stat=btread(BT848_INT_STAT);
3773                 astat=stat&btread(BT848_INT_MASK);
3774                 if (!astat)
3775                         break;
3776                 handled = 1;
3777                 btwrite(stat,BT848_INT_STAT);
3778
3779                 /* get device status bits */
3780                 dstat=btread(BT848_DSTATUS);
3781
3782                 if (irq_debug) {
3783                         printk(KERN_DEBUG "bttv%d: irq loop=%d fc=%d "
3784                                "riscs=%x, riscc=%08x, ",
3785                                btv->c.nr, count, btv->field_count,
3786                                stat>>28, btread(BT848_RISC_COUNT));
3787                         bttv_print_irqbits(stat,astat);
3788                         if (stat & BT848_INT_HLOCK)
3789                                 printk("   HLOC => %s", (dstat & BT848_DSTATUS_HLOC)
3790                                        ? "yes" : "no");
3791                         if (stat & BT848_INT_VPRES)
3792                                 printk("   PRES => %s", (dstat & BT848_DSTATUS_PRES)
3793                                        ? "yes" : "no");
3794                         if (stat & BT848_INT_FMTCHG)
3795                                 printk("   NUML => %s", (dstat & BT848_DSTATUS_NUML)
3796                                        ? "625" : "525");
3797                         printk("\n");
3798                 }
3799
3800                 if (astat&BT848_INT_VSYNC)
3801                         btv->field_count++;
3802
3803                 if ((astat & BT848_INT_GPINT) && btv->remote) {
3804                         wake_up(&btv->gpioq);
3805                         bttv_input_irq(btv);
3806                 }
3807
3808                 if (astat & BT848_INT_I2CDONE) {
3809                         btv->i2c_done = stat;
3810                         wake_up(&btv->i2c_queue);
3811                 }
3812
3813                 if ((astat & BT848_INT_RISCI)  &&  (stat & (4<<28)))
3814                         bttv_irq_switch_vbi(btv);
3815
3816                 if ((astat & BT848_INT_RISCI)  &&  (stat & (2<<28)))
3817                         bttv_irq_wakeup_top(btv);
3818
3819                 if ((astat & BT848_INT_RISCI)  &&  (stat & (1<<28)))
3820                         bttv_irq_switch_video(btv);
3821
3822                 if ((astat & BT848_INT_HLOCK)  &&  btv->opt_automute)
3823                         audio_mute(btv, btv->mute);  /* trigger automute */
3824
3825                 if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) {
3826                         printk(KERN_INFO "bttv%d: %s%s @ %08x,",btv->c.nr,
3827                                (astat & BT848_INT_SCERR) ? "SCERR" : "",
3828                                (astat & BT848_INT_OCERR) ? "OCERR" : "",
3829                                btread(BT848_RISC_COUNT));
3830                         bttv_print_irqbits(stat,astat);
3831                         printk("\n");
3832                         if (bttv_debug)
3833                                 bttv_print_riscaddr(btv);
3834                 }
3835                 if (fdsr && astat & BT848_INT_FDSR) {
3836                         printk(KERN_INFO "bttv%d: FDSR @ %08x\n",
3837                                btv->c.nr,btread(BT848_RISC_COUNT));
3838                         if (bttv_debug)
3839                                 bttv_print_riscaddr(btv);
3840                 }
3841
3842                 count++;
3843                 if (count > 4) {
3844
3845                         if (count > 8 || !(astat & BT848_INT_GPINT)) {
3846                                 btwrite(0, BT848_INT_MASK);
3847
3848                                 printk(KERN_ERR
3849                                            "bttv%d: IRQ lockup, cleared int mask [", btv->c.nr);
3850                         } else {
3851                                 printk(KERN_ERR
3852                                            "bttv%d: IRQ lockup, clearing GPINT from int mask [", btv->c.nr);
3853
3854                                 btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT),
3855                                                 BT848_INT_MASK);
3856                         };
3857
3858                         bttv_print_irqbits(stat,astat);
3859
3860                         printk("]\n");
3861                 }
3862         }
3863         btv->irq_total++;
3864         if (handled)
3865                 btv->irq_me++;
3866         return IRQ_RETVAL(handled);
3867 }
3868
3869
3870 /* ----------------------------------------------------------------------- */
3871 /* initialitation                                                          */
3872
3873 static struct video_device *vdev_init(struct bttv *btv,
3874                                       struct video_device *template,
3875                                       char *type)
3876 {
3877         struct video_device *vfd;
3878
3879         vfd = video_device_alloc();
3880         if (NULL == vfd)
3881                 return NULL;
3882         *vfd = *template;
3883         vfd->minor   = -1;
3884         vfd->dev     = &btv->c.pci->dev;
3885         vfd->release = video_device_release;
3886         snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)",
3887                  btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "",
3888                  type, bttv_tvcards[btv->c.type].name);
3889         return vfd;
3890 }
3891
3892 static void bttv_unregister_video(struct bttv *btv)
3893 {
3894         if (btv->video_dev) {
3895                 if (-1 != btv->video_dev->minor)
3896                         video_unregister_device(btv->video_dev);
3897                 else
3898                         video_device_release(btv->video_dev);
3899                 btv->video_dev = NULL;
3900         }
3901         if (btv->vbi_dev) {
3902                 if (-1 != btv->vbi_dev->minor)
3903                         video_unregister_device(btv->vbi_dev);
3904                 else
3905                         video_device_release(btv->vbi_dev);
3906                 btv->vbi_dev = NULL;
3907         }
3908         if (btv->radio_dev) {
3909                 if (-1 != btv->radio_dev->minor)
3910                         video_unregister_device(btv->radio_dev);
3911                 else
3912                         video_device_release(btv->radio_dev);
3913                 btv->radio_dev = NULL;
3914         }
3915 }
3916
3917 /* register video4linux devices */
3918 static int __devinit bttv_register_video(struct bttv *btv)
3919 {
3920         if (no_overlay <= 0) {
3921                 bttv_video_template.type |= VID_TYPE_OVERLAY;
3922         } else {
3923                 printk("bttv: Overlay support disabled.\n");
3924         }
3925
3926         /* video */
3927         btv->video_dev = vdev_init(btv, &bttv_video_template, "video");
3928         if (NULL == btv->video_dev)
3929                 goto err;
3930         if (video_register_device(btv->video_dev,VFL_TYPE_GRABBER,video_nr)<0)
3931                 goto err;
3932         printk(KERN_INFO "bttv%d: registered device video%d\n",
3933                btv->c.nr,btv->video_dev->minor & 0x1f);
3934         if (class_device_create_file(&btv->video_dev->class_dev,
3935                                      &class_device_attr_card)<0) {
3936                 printk(KERN_ERR "bttv%d: class_device_create_file 'card' "
3937                        "failed\n", btv->c.nr);
3938                 goto err;
3939         }
3940
3941         /* vbi */
3942         btv->vbi_dev = vdev_init(btv, &bttv_vbi_template, "vbi");
3943         if (NULL == btv->vbi_dev)
3944                 goto err;
3945         if (video_register_device(btv->vbi_dev,VFL_TYPE_VBI,vbi_nr)<0)
3946                 goto err;
3947         printk(KERN_INFO "bttv%d: registered device vbi%d\n",
3948                btv->c.nr,btv->vbi_dev->minor & 0x1f);
3949
3950         if (!btv->has_radio)
3951                 return 0;
3952         /* radio */
3953         btv->radio_dev = vdev_init(btv, &radio_template, "radio");
3954         if (NULL == btv->radio_dev)
3955                 goto err;
3956         if (video_register_device(btv->radio_dev, VFL_TYPE_RADIO,radio_nr)<0)
3957                 goto err;
3958         printk(KERN_INFO "bttv%d: registered device radio%d\n",
3959                btv->c.nr,btv->radio_dev->minor & 0x1f);
3960
3961         /* all done */
3962         return 0;
3963
3964  err:
3965         bttv_unregister_video(btv);
3966         return -1;
3967 }
3968
3969
3970 /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
3971 /* response on cards with no firmware is not enabled by OF */
3972 static void pci_set_command(struct pci_dev *dev)
3973 {
3974 #if defined(__powerpc__)
3975         unsigned int cmd;
3976
3977         pci_read_config_dword(dev, PCI_COMMAND, &cmd);
3978         cmd = (cmd | PCI_COMMAND_MEMORY );
3979         pci_write_config_dword(dev, PCI_COMMAND, cmd);
3980 #endif
3981 }
3982
3983 static int __devinit bttv_probe(struct pci_dev *dev,
3984                                 const struct pci_device_id *pci_id)
3985 {
3986         int result;
3987         unsigned char lat;
3988         struct bttv *btv;
3989
3990         if (bttv_num == BTTV_MAX)
3991                 return -ENOMEM;
3992         printk(KERN_INFO "bttv: Bt8xx card found (%d).\n", bttv_num);
3993         btv=&bttvs[bttv_num];
3994         memset(btv,0,sizeof(*btv));
3995         btv->c.nr  = bttv_num;
3996         sprintf(btv->c.name,"bttv%d",btv->c.nr);
3997
3998         /* initialize structs / fill in defaults */
3999         mutex_init(&btv->lock);
4000         mutex_init(&btv->reslock);
4001         spin_lock_init(&btv->s_lock);
4002         spin_lock_init(&btv->gpio_lock);
4003         init_waitqueue_head(&btv->gpioq);
4004         init_waitqueue_head(&btv->i2c_queue);
4005         INIT_LIST_HEAD(&btv->c.subs);
4006         INIT_LIST_HEAD(&btv->capture);
4007         INIT_LIST_HEAD(&btv->vcapture);
4008         v4l2_prio_init(&btv->prio);
4009
4010         init_timer(&btv->timeout);
4011         btv->timeout.function = bttv_irq_timeout;
4012         btv->timeout.data     = (unsigned long)btv;
4013
4014         btv->i2c_rc = -1;
4015         btv->tuner_type  = UNSET;
4016         btv->new_input   = UNSET;
4017         btv->has_radio=radio[btv->c.nr];
4018
4019         /* pci stuff (init, get irq/mmio, ... */
4020         btv->c.pci = dev;
4021         btv->id  = dev->device;
4022         if (pci_enable_device(dev)) {
4023                 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4024                        btv->c.nr);
4025                 return -EIO;
4026         }
4027         if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
4028                 printk(KERN_WARNING "bttv%d: No suitable DMA available.\n",
4029                        btv->c.nr);
4030                 return -EIO;
4031         }
4032         if (!request_mem_region(pci_resource_start(dev,0),
4033                                 pci_resource_len(dev,0),
4034                                 btv->c.name)) {
4035                 printk(KERN_WARNING "bttv%d: can't request iomem (0x%llx).\n",
4036                        btv->c.nr,
4037                        (unsigned long long)pci_resource_start(dev,0));
4038                 return -EBUSY;
4039         }
4040         pci_set_master(dev);
4041         pci_set_command(dev);
4042         pci_set_drvdata(dev,btv);
4043
4044         pci_read_config_byte(dev, PCI_CLASS_REVISION, &btv->revision);
4045         pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
4046         printk(KERN_INFO "bttv%d: Bt%d (rev %d) at %s, ",
4047                bttv_num,btv->id, btv->revision, pci_name(dev));
4048         printk("irq: %d, latency: %d, mmio: 0x%llx\n",
4049                btv->c.pci->irq, lat,
4050                (unsigned long long)pci_resource_start(dev,0));
4051         schedule();
4052
4053         btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000);
4054         if (NULL == btv->bt848_mmio) {
4055                 printk("bttv%d: ioremap() failed\n", btv->c.nr);
4056                 result = -EIO;
4057                 goto fail1;
4058         }
4059
4060         /* identify card */
4061         bttv_idcard(btv);
4062
4063         /* disable irqs, register irq handler */
4064         btwrite(0, BT848_INT_MASK);
4065         result = request_irq(btv->c.pci->irq, bttv_irq,
4066                              IRQF_SHARED | IRQF_DISABLED,btv->c.name,(void *)btv);
4067         if (result < 0) {
4068                 printk(KERN_ERR "bttv%d: can't get IRQ %d\n",
4069                        bttv_num,btv->c.pci->irq);
4070                 goto fail1;
4071         }
4072
4073         if (0 != bttv_handle_chipset(btv)) {
4074                 result = -EIO;
4075                 goto fail2;
4076         }
4077
4078         /* init options from insmod args */
4079         btv->opt_combfilter = combfilter;
4080         btv->opt_lumafilter = lumafilter;
4081         btv->opt_automute   = automute;
4082         btv->opt_chroma_agc = chroma_agc;
4083         btv->opt_adc_crush  = adc_crush;
4084         btv->opt_vcr_hack   = vcr_hack;
4085         btv->opt_whitecrush_upper  = whitecrush_upper;
4086         btv->opt_whitecrush_lower  = whitecrush_lower;
4087         btv->opt_uv_ratio   = uv_ratio;
4088         btv->opt_full_luma_range   = full_luma_range;
4089         btv->opt_coring     = coring;
4090
4091         /* fill struct bttv with some useful defaults */
4092         btv->init.btv         = btv;
4093         btv->init.ov.w.width  = 320;
4094         btv->init.ov.w.height = 240;
4095         btv->init.fmt         = format_by_palette(VIDEO_PALETTE_RGB24);
4096         btv->init.width       = 320;
4097         btv->init.height      = 240;
4098         btv->init.lines       = 16;
4099         btv->input = 0;
4100
4101         /* initialize hardware */
4102         if (bttv_gpio)
4103                 bttv_gpio_tracking(btv,"pre-init");
4104
4105         bttv_risc_init_main(btv);
4106         init_bt848(btv);
4107
4108         /* gpio */
4109         btwrite(0x00, BT848_GPIO_REG_INP);
4110         btwrite(0x00, BT848_GPIO_OUT_EN);
4111         if (bttv_verbose)
4112                 bttv_gpio_tracking(btv,"init");
4113
4114         /* needs to be done before i2c is registered */
4115         bttv_init_card1(btv);
4116
4117         /* register i2c + gpio */
4118         init_bttv_i2c(btv);
4119
4120         /* some card-specific stuff (needs working i2c) */
4121         bttv_init_card2(btv);
4122         init_irqreg(btv);
4123
4124         /* register video4linux + input */
4125         if (!bttv_tvcards[btv->c.type].no_video) {
4126                 bttv_register_video(btv);
4127                 bt848_bright(btv,32768);
4128                 bt848_contrast(btv,32768);
4129                 bt848_hue(btv,32768);
4130                 bt848_sat(btv,32768);
4131                 audio_mute(btv, 1);
4132                 set_input(btv,0);
4133         }
4134
4135         /* add subdevices */
4136         if (bttv_tvcards[btv->c.type].has_dvb)
4137                 bttv_sub_add_device(&btv->c, "dvb");
4138
4139         bttv_input_init(btv);
4140
4141         /* everything is fine */
4142         bttv_num++;
4143         return 0;
4144
4145  fail2:
4146         free_irq(btv->c.pci->irq,btv);
4147
4148  fail1:
4149         if (btv->bt848_mmio)
4150                 iounmap(btv->bt848_mmio);
4151         release_mem_region(pci_resource_start(btv->c.pci,0),
4152                            pci_resource_len(btv->c.pci,0));
4153         pci_set_drvdata(dev,NULL);
4154         return result;
4155 }
4156
4157 static void __devexit bttv_remove(struct pci_dev *pci_dev)
4158 {
4159         struct bttv *btv = pci_get_drvdata(pci_dev);
4160
4161         if (bttv_verbose)
4162                 printk("bttv%d: unloading\n",btv->c.nr);
4163
4164         /* shutdown everything (DMA+IRQs) */
4165         btand(~15, BT848_GPIO_DMA_CTL);
4166         btwrite(0, BT848_INT_MASK);
4167         btwrite(~0x0, BT848_INT_STAT);
4168         btwrite(0x0, BT848_GPIO_OUT_EN);
4169         if (bttv_gpio)
4170                 bttv_gpio_tracking(btv,"cleanup");
4171
4172         /* tell gpio modules we are leaving ... */
4173         btv->shutdown=1;
4174         wake_up(&btv->gpioq);
4175         bttv_input_fini(btv);
4176         bttv_sub_del_devices(&btv->c);
4177
4178         /* unregister i2c_bus + input */
4179         fini_bttv_i2c(btv);
4180
4181         /* unregister video4linux */
4182         bttv_unregister_video(btv);
4183
4184         /* free allocated memory */
4185         btcx_riscmem_free(btv->c.pci,&btv->main);
4186
4187         /* free ressources */
4188         free_irq(btv->c.pci->irq,btv);
4189         iounmap(btv->bt848_mmio);
4190         release_mem_region(pci_resource_start(btv->c.pci,0),
4191                            pci_resource_len(btv->c.pci,0));
4192
4193         pci_set_drvdata(pci_dev, NULL);
4194         return;
4195 }
4196
4197 #ifdef CONFIG_PM
4198 static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state)
4199 {
4200         struct bttv *btv = pci_get_drvdata(pci_dev);
4201         struct bttv_buffer_set idle;
4202         unsigned long flags;
4203
4204         dprintk("bttv%d: suspend %d\n", btv->c.nr, state.event);
4205
4206         /* stop dma + irqs */
4207         spin_lock_irqsave(&btv->s_lock,flags);
4208         memset(&idle, 0, sizeof(idle));
4209         btv->state.video = btv->curr;
4210         btv->state.vbi   = btv->cvbi;
4211         btv->state.loop_irq = btv->loop_irq;
4212         btv->curr = idle;
4213         btv->loop_irq = 0;
4214         bttv_buffer_activate_video(btv, &idle);
4215         bttv_buffer_activate_vbi(btv, NULL);
4216         bttv_set_dma(btv, 0);
4217         btwrite(0, BT848_INT_MASK);
4218         spin_unlock_irqrestore(&btv->s_lock,flags);
4219
4220         /* save bt878 state */
4221         btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN);
4222         btv->state.gpio_data   = gpio_read();
4223
4224         /* save pci state */
4225         pci_save_state(pci_dev);
4226         if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
4227                 pci_disable_device(pci_dev);
4228                 btv->state.disabled = 1;
4229         }
4230         return 0;
4231 }
4232
4233 static int bttv_resume(struct pci_dev *pci_dev)
4234 {
4235         struct bttv *btv = pci_get_drvdata(pci_dev);
4236         unsigned long flags;
4237         int err;
4238
4239         dprintk("bttv%d: resume\n", btv->c.nr);
4240
4241         /* restore pci state */
4242         if (btv->state.disabled) {
4243                 err=pci_enable_device(pci_dev);
4244                 if (err) {
4245                         printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4246                                                                 btv->c.nr);
4247                         return err;
4248                 }
4249                 btv->state.disabled = 0;
4250         }
4251         err=pci_set_power_state(pci_dev, PCI_D0);
4252         if (err) {
4253                 pci_disable_device(pci_dev);
4254                 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4255                                                         btv->c.nr);
4256                 btv->state.disabled = 1;
4257                 return err;
4258         }
4259
4260         pci_restore_state(pci_dev);
4261
4262         /* restore bt878 state */
4263         bttv_reinit_bt848(btv);
4264         gpio_inout(0xffffff, btv->state.gpio_enable);
4265         gpio_write(btv->state.gpio_data);
4266
4267         /* restart dma */
4268         spin_lock_irqsave(&btv->s_lock,flags);
4269         btv->curr = btv->state.video;
4270         btv->cvbi = btv->state.vbi;
4271         btv->loop_irq = btv->state.loop_irq;
4272         bttv_buffer_activate_video(btv, &btv->curr);
4273         bttv_buffer_activate_vbi(btv, btv->cvbi);
4274         bttv_set_dma(btv, 0);
4275         spin_unlock_irqrestore(&btv->s_lock,flags);
4276         return 0;
4277 }
4278 #endif
4279
4280 static struct pci_device_id bttv_pci_tbl[] = {
4281         {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT848,
4282          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4283         {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT849,
4284          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4285         {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT878,
4286          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4287         {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT879,
4288          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4289         {0,}
4290 };
4291
4292 MODULE_DEVICE_TABLE(pci, bttv_pci_tbl);
4293
4294 static struct pci_driver bttv_pci_driver = {
4295         .name     = "bttv",
4296         .id_table = bttv_pci_tbl,
4297         .probe    = bttv_probe,
4298         .remove   = __devexit_p(bttv_remove),
4299 #ifdef CONFIG_PM
4300         .suspend  = bttv_suspend,
4301         .resume   = bttv_resume,
4302 #endif
4303 };
4304
4305 static int bttv_init_module(void)
4306 {
4307         int ret;
4308
4309         bttv_num = 0;
4310
4311         printk(KERN_INFO "bttv: driver version %d.%d.%d loaded\n",
4312                (BTTV_VERSION_CODE >> 16) & 0xff,
4313                (BTTV_VERSION_CODE >> 8) & 0xff,
4314                BTTV_VERSION_CODE & 0xff);
4315 #ifdef SNAPSHOT
4316         printk(KERN_INFO "bttv: snapshot date %04d-%02d-%02d\n",
4317                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
4318 #endif
4319         if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
4320                 gbuffers = 2;
4321         if (gbufsize < 0 || gbufsize > BTTV_MAX_FBUF)
4322                 gbufsize = BTTV_MAX_FBUF;
4323         gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
4324         if (bttv_verbose)
4325                 printk(KERN_INFO "bttv: using %d buffers with %dk (%d pages) each for capture\n",
4326                        gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT);
4327
4328         bttv_check_chipset();
4329
4330         ret = bus_register(&bttv_sub_bus_type);
4331         if (ret < 0) {
4332                 printk(KERN_WARNING "bttv: bus_register error: %d\n", ret);
4333                 return ret;
4334         }
4335         return pci_register_driver(&bttv_pci_driver);
4336 }
4337
4338 static void bttv_cleanup_module(void)
4339 {
4340         pci_unregister_driver(&bttv_pci_driver);
4341         bus_unregister(&bttv_sub_bus_type);
4342         return;
4343 }
4344
4345 module_init(bttv_init_module);
4346 module_exit(bttv_cleanup_module);
4347
4348 /*
4349  * Local variables:
4350  * c-basic-offset: 8
4351  * End:
4352  */