Pileus Git - ~andy/linux/blob - 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     V4L1 removal from:
  13     (c) 2005-2006 Nickolay V. Shmyrev <nshmyrev@yandex.ru>
  14
  15     Fixes to be fully V4L2 compliant by
  16     (c) 2006 Mauro Carvalho Chehab <mchehab@infradead.org>
  17
  18     Cropping and overscan support
  19     Copyright (C) 2005, 2006 Michael H. Schimek <mschimek@gmx.at>
  20     Sponsored by OPQ Systems AB
  21
  22     This program is free software; you can redistribute it and/or modify
  23     it under the terms of the GNU General Public License as published by
  24     the Free Software Foundation; either version 2 of the License, or
  25     (at your option) any later version.
  26
  27     This program is distributed in the hope that it will be useful,
  28     but WITHOUT ANY WARRANTY; without even the implied warranty of
  29     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  30     GNU General Public License for more details.
  31
  32     You should have received a copy of the GNU General Public License
  33     along with this program; if not, write to the Free Software
  34     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  35 */
  36
  37 #include <linux/init.h>
  38 #include <linux/module.h>
  39 #include <linux/delay.h>
  40 #include <linux/errno.h>
  41 #include <linux/fs.h>
  42 #include <linux/kernel.h>
  43 #include <linux/sched.h>
  44 #include <linux/interrupt.h>
  45 #include <linux/kdev_t.h>
  46 #include "bttvp.h"
  47 #include <media/v4l2-common.h>
  48 #include <media/tvaudio.h>
  49 #include <media/msp3400.h>
  50
  51 #include <linux/dma-mapping.h>
  52
  53 #include <asm/io.h>
  54 #include <asm/byteorder.h>
  55
  56 #include <media/rds.h>
  57
  58
  59 unsigned int bttv_num;                  /* number of Bt848s in use */
  60 struct bttv bttvs[BTTV_MAX];
  61
  62 unsigned int bttv_debug;
  63 unsigned int bttv_verbose = 1;
  64 unsigned int bttv_gpio;
  65
  66 /* config variables */
  67 #ifdef __BIG_ENDIAN
  68 static unsigned int bigendian=1;
  69 #else
  70 static unsigned int bigendian;
  71 #endif
  72 static unsigned int radio[BTTV_MAX];
  73 static unsigned int irq_debug;
  74 static unsigned int gbuffers = 8;
  75 static unsigned int gbufsize = 0x208000;
  76 static unsigned int reset_crop = 1;
  77
  78 static int video_nr = -1;
  79 static int radio_nr = -1;
  80 static int vbi_nr = -1;
  81 static int debug_latency;
  82
  83 static unsigned int fdsr;
  84
  85 /* options */
  86 static unsigned int combfilter;
  87 static unsigned int lumafilter;
  88 static unsigned int automute    = 1;
  89 static unsigned int chroma_agc;
  90 static unsigned int adc_crush   = 1;
  91 static unsigned int whitecrush_upper = 0xCF;
  92 static unsigned int whitecrush_lower = 0x7F;
  93 static unsigned int vcr_hack;
  94 static unsigned int irq_iswitch;
  95 static unsigned int uv_ratio    = 50;
  96 static unsigned int full_luma_range;
  97 static unsigned int coring;
  98 extern int no_overlay;
  99
 100 /* API features (turn on/off stuff for testing) */
 101 static unsigned int v4l2        = 1;
 102
 103 /* insmod args */
 104 module_param(bttv_verbose,      int, 0644);
 105 module_param(bttv_gpio,         int, 0644);
 106 module_param(bttv_debug,        int, 0644);
 107 module_param(irq_debug,         int, 0644);
 108 module_param(debug_latency,     int, 0644);
 109
 110 module_param(fdsr,              int, 0444);
 111 module_param(video_nr,          int, 0444);
 112 module_param(radio_nr,          int, 0444);
 113 module_param(vbi_nr,            int, 0444);
 114 module_param(gbuffers,          int, 0444);
 115 module_param(gbufsize,          int, 0444);
 116 module_param(reset_crop,        int, 0444);
 117
 118 module_param(v4l2,              int, 0644);
 119 module_param(bigendian,         int, 0644);
 120 module_param(irq_iswitch,       int, 0644);
 121 module_param(combfilter,        int, 0444);
 122 module_param(lumafilter,        int, 0444);
 123 module_param(automute,          int, 0444);
 124 module_param(chroma_agc,        int, 0444);
 125 module_param(adc_crush,         int, 0444);
 126 module_param(whitecrush_upper,  int, 0444);
 127 module_param(whitecrush_lower,  int, 0444);
 128 module_param(vcr_hack,          int, 0444);
 129 module_param(uv_ratio,          int, 0444);
 130 module_param(full_luma_range,   int, 0444);
 131 module_param(coring,            int, 0444);
 132
 133 module_param_array(radio, int, NULL, 0444);
 134
 135 MODULE_PARM_DESC(radio,"The TV card supports radio, default is 0 (no)");
 136 MODULE_PARM_DESC(bigendian,"byte order of the framebuffer, default is native endian");
 137 MODULE_PARM_DESC(bttv_verbose,"verbose startup messages, default is 1 (yes)");
 138 MODULE_PARM_DESC(bttv_gpio,"log gpio changes, default is 0 (no)");
 139 MODULE_PARM_DESC(bttv_debug,"debug messages, default is 0 (no)");
 140 MODULE_PARM_DESC(irq_debug,"irq handler debug messages, default is 0 (no)");
 141 MODULE_PARM_DESC(gbuffers,"number of capture buffers. range 2-32, default 8");
 142 MODULE_PARM_DESC(gbufsize,"size of the capture buffers, default is 0x208000");
 143 MODULE_PARM_DESC(reset_crop,"reset cropping parameters at open(), default "
 144                  "is 1 (yes) for compatibility with older applications");
 145 MODULE_PARM_DESC(automute,"mute audio on bad/missing video signal, default is 1 (yes)");
 146 MODULE_PARM_DESC(chroma_agc,"enables the AGC of chroma signal, default is 0 (no)");
 147 MODULE_PARM_DESC(adc_crush,"enables the luminance ADC crush, default is 1 (yes)");
 148 MODULE_PARM_DESC(whitecrush_upper,"sets the white crush upper value, default is 207");
 149 MODULE_PARM_DESC(whitecrush_lower,"sets the white crush lower value, default is 127");
 150 MODULE_PARM_DESC(vcr_hack,"enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)");
 151 MODULE_PARM_DESC(irq_iswitch,"switch inputs in irq handler");
 152 MODULE_PARM_DESC(uv_ratio,"ratio between u and v gains, default is 50");
 153 MODULE_PARM_DESC(full_luma_range,"use the full luma range, default is 0 (no)");
 154 MODULE_PARM_DESC(coring,"set the luma coring level, default is 0 (no)");
 155
 156 MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards");
 157 MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
 158 MODULE_LICENSE("GPL");
 159
 160 /* ----------------------------------------------------------------------- */
 161 /* sysfs                                                                   */
 162
 163 static ssize_t show_card(struct device *cd,
 164                          struct device_attribute *attr, char *buf)
 165 {
 166         struct video_device *vfd = container_of(cd, struct video_device, class_dev);
 167         struct bttv *btv = dev_get_drvdata(vfd->dev);
 168         return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET);
 169 }
 170 static DEVICE_ATTR(card, S_IRUGO, show_card, NULL);
 171
 172 /* ----------------------------------------------------------------------- */
 173 /* dvb auto-load setup                                                     */
 174 #if defined(CONFIG_MODULES) && defined(MODULE)
 175 static void request_module_async(struct work_struct *work)
 176 {
 177         request_module("dvb-bt8xx");
 178 }
 179
 180 static void request_modules(struct bttv *dev)
 181 {
 182         INIT_WORK(&dev->request_module_wk, request_module_async);
 183         schedule_work(&dev->request_module_wk);
 184 }
 185 #else
 186 #define request_modules(dev)
 187 #endif /* CONFIG_MODULES */
 188
 189
 190 /* ----------------------------------------------------------------------- */
 191 /* static data                                                             */
 192
 193 /* special timing tables from conexant... */
 194 static u8 SRAM_Table[][60] =
 195 {
 196         /* PAL digital input over GPIO[7:0] */
 197         {
 198                 45, // 45 bytes following
 199                 0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16,
 200                 0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00,
 201                 0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00,
 202                 0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37,
 203                 0x37,0x00,0xAF,0x21,0x00
 204         },
 205         /* NTSC digital input over GPIO[7:0] */
 206         {
 207                 51, // 51 bytes following
 208                 0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06,
 209                 0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00,
 210                 0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07,
 211                 0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6,
 212                 0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21,
 213                 0x00,
 214         },
 215         // TGB_NTSC392 // quartzsight
 216         // This table has been modified to be used for Fusion Rev D
 217         {
 218                 0x2A, // size of table = 42
 219                 0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24,
 220                 0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10,
 221                 0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00,
 222                 0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3,
 223                 0x20, 0x00
 224         }
 225 };
 226
 227 /* minhdelayx1  first video pixel we can capture on a line and
 228    hdelayx1     start of active video, both relative to rising edge of
 229                 /HRESET pulse (0H) in 1 / fCLKx1.
 230    swidth       width of active video and
 231    totalwidth   total line width, both in 1 / fCLKx1.
 232    sqwidth      total line width in square pixels.
 233    vdelay       start of active video in 2 * field lines relative to
 234                 trailing edge of /VRESET pulse (VDELAY register).
 235    sheight      height of active video in 2 * field lines.
 236    videostart0  ITU-R frame line number of the line corresponding
 237                 to vdelay in the first field. */
 238 #define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth,      \
 239                 vdelay, sheight, videostart0)                            \
 240         .cropcap.bounds.left = minhdelayx1,                              \
 241         /* * 2 because vertically we count field lines times two, */     \
 242         /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */           \
 243         .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \
 244         /* 4 is a safety margin at the end of the line. */               \
 245         .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4,        \
 246         .cropcap.bounds.height = (sheight) + (vdelay) - MIN_VDELAY,      \
 247         .cropcap.defrect.left = hdelayx1,                                \
 248         .cropcap.defrect.top = (videostart0) * 2,                        \
 249         .cropcap.defrect.width = swidth,                                 \
 250         .cropcap.defrect.height = sheight,                               \
 251         .cropcap.pixelaspect.numerator = totalwidth,                     \
 252         .cropcap.pixelaspect.denominator = sqwidth,
 253
 254 const struct bttv_tvnorm bttv_tvnorms[] = {
 255         /* PAL-BDGHI */
 256         /* max. active video is actually 922, but 924 is divisible by 4 and 3! */
 257         /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
 258         {
 259                 .v4l2_id        = V4L2_STD_PAL,
 260                 .name           = "PAL",
 261                 .Fsc            = 35468950,
 262                 .swidth         = 924,
 263                 .sheight        = 576,
 264                 .totalwidth     = 1135,
 265                 .adelay         = 0x7f,
 266                 .bdelay         = 0x72,
 267                 .iform          = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
 268                 .scaledtwidth   = 1135,
 269                 .hdelayx1       = 186,
 270                 .hactivex1      = 924,
 271                 .vdelay         = 0x20,
 272                 .vbipack        = 255, /* min (2048 / 4, 0x1ff) & 0xff */
 273                 .sram           = 0,
 274                 /* ITU-R frame line number of the first VBI line
 275                    we can capture, of the first and second field.
 276                    The last line is determined by cropcap.bounds. */
 277                 .vbistart       = { 7, 320 },
 278                 CROPCAP(/* minhdelayx1 */ 68,
 279                         /* hdelayx1 */ 186,
 280                         /* Should be (768 * 1135 + 944 / 2) / 944.
 281                            cropcap.defrect is used for image width
 282                            checks, so we keep the old value 924. */
 283                         /* swidth */ 924,
 284                         /* totalwidth */ 1135,
 285                         /* sqwidth */ 944,
 286                         /* vdelay */ 0x20,
 287                         /* sheight */ 576,
 288                         /* videostart0 */ 23)
 289                 /* bt878 (and bt848?) can capture another
 290                    line below active video. */
 291                 .cropcap.bounds.height = (576 + 2) + 0x20 - 2,
 292         },{
 293                 .v4l2_id        = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
 294                 .name           = "NTSC",
 295                 .Fsc            = 28636363,
 296                 .swidth         = 768,
 297                 .sheight        = 480,
 298                 .totalwidth     = 910,
 299                 .adelay         = 0x68,
 300                 .bdelay         = 0x5d,
 301                 .iform          = (BT848_IFORM_NTSC|BT848_IFORM_XT0),
 302                 .scaledtwidth   = 910,
 303                 .hdelayx1       = 128,
 304                 .hactivex1      = 910,
 305                 .vdelay         = 0x1a,
 306                 .vbipack        = 144, /* min (1600 / 4, 0x1ff) & 0xff */
 307                 .sram           = 1,
 308                 .vbistart       = { 10, 273 },
 309                 CROPCAP(/* minhdelayx1 */ 68,
 310                         /* hdelayx1 */ 128,
 311                         /* Should be (640 * 910 + 780 / 2) / 780? */
 312                         /* swidth */ 768,
 313                         /* totalwidth */ 910,
 314                         /* sqwidth */ 780,
 315                         /* vdelay */ 0x1a,
 316                         /* sheight */ 480,
 317                         /* videostart0 */ 23)
 318         },{
 319                 .v4l2_id        = V4L2_STD_SECAM,
 320                 .name           = "SECAM",
 321                 .Fsc            = 35468950,
 322                 .swidth         = 924,
 323                 .sheight        = 576,
 324                 .totalwidth     = 1135,
 325                 .adelay         = 0x7f,
 326                 .bdelay         = 0xb0,
 327                 .iform          = (BT848_IFORM_SECAM|BT848_IFORM_XT1),
 328                 .scaledtwidth   = 1135,
 329                 .hdelayx1       = 186,
 330                 .hactivex1      = 922,
 331                 .vdelay         = 0x20,
 332                 .vbipack        = 255,
 333                 .sram           = 0, /* like PAL, correct? */
 334                 .vbistart       = { 7, 320 },
 335                 CROPCAP(/* minhdelayx1 */ 68,
 336                         /* hdelayx1 */ 186,
 337                         /* swidth */ 924,
 338                         /* totalwidth */ 1135,
 339                         /* sqwidth */ 944,
 340                         /* vdelay */ 0x20,
 341                         /* sheight */ 576,
 342                         /* videostart0 */ 23)
 343         },{
 344                 .v4l2_id        = V4L2_STD_PAL_Nc,
 345                 .name           = "PAL-Nc",
 346                 .Fsc            = 28636363,
 347                 .swidth         = 640,
 348                 .sheight        = 576,
 349                 .totalwidth     = 910,
 350                 .adelay         = 0x68,
 351                 .bdelay         = 0x5d,
 352                 .iform          = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0),
 353                 .scaledtwidth   = 780,
 354                 .hdelayx1       = 130,
 355                 .hactivex1      = 734,
 356                 .vdelay         = 0x1a,
 357                 .vbipack        = 144,
 358                 .sram           = -1,
 359                 .vbistart       = { 7, 320 },
 360                 CROPCAP(/* minhdelayx1 */ 68,
 361                         /* hdelayx1 */ 130,
 362                         /* swidth */ (640 * 910 + 780 / 2) / 780,
 363                         /* totalwidth */ 910,
 364                         /* sqwidth */ 780,
 365                         /* vdelay */ 0x1a,
 366                         /* sheight */ 576,
 367                         /* videostart0 */ 23)
 368         },{
 369                 .v4l2_id        = V4L2_STD_PAL_M,
 370                 .name           = "PAL-M",
 371                 .Fsc            = 28636363,
 372                 .swidth         = 640,
 373                 .sheight        = 480,
 374                 .totalwidth     = 910,
 375                 .adelay         = 0x68,
 376                 .bdelay         = 0x5d,
 377                 .iform          = (BT848_IFORM_PAL_M|BT848_IFORM_XT0),
 378                 .scaledtwidth   = 780,
 379                 .hdelayx1       = 135,
 380                 .hactivex1      = 754,
 381                 .vdelay         = 0x1a,
 382                 .vbipack        = 144,
 383                 .sram           = -1,
 384                 .vbistart       = { 10, 273 },
 385                 CROPCAP(/* minhdelayx1 */ 68,
 386                         /* hdelayx1 */ 135,
 387                         /* swidth */ (640 * 910 + 780 / 2) / 780,
 388                         /* totalwidth */ 910,
 389                         /* sqwidth */ 780,
 390                         /* vdelay */ 0x1a,
 391                         /* sheight */ 480,
 392                         /* videostart0 */ 23)
 393         },{
 394                 .v4l2_id        = V4L2_STD_PAL_N,
 395                 .name           = "PAL-N",
 396                 .Fsc            = 35468950,
 397                 .swidth         = 768,
 398                 .sheight        = 576,
 399                 .totalwidth     = 1135,
 400                 .adelay         = 0x7f,
 401                 .bdelay         = 0x72,
 402                 .iform          = (BT848_IFORM_PAL_N|BT848_IFORM_XT1),
 403                 .scaledtwidth   = 944,
 404                 .hdelayx1       = 186,
 405                 .hactivex1      = 922,
 406                 .vdelay         = 0x20,
 407                 .vbipack        = 144,
 408                 .sram           = -1,
 409                 .vbistart       = { 7, 320 },
 410                 CROPCAP(/* minhdelayx1 */ 68,
 411                         /* hdelayx1 */ 186,
 412                         /* swidth */ (768 * 1135 + 944 / 2) / 944,
 413                         /* totalwidth */ 1135,
 414                         /* sqwidth */ 944,
 415                         /* vdelay */ 0x20,
 416                         /* sheight */ 576,
 417                         /* videostart0 */ 23)
 418         },{
 419                 .v4l2_id        = V4L2_STD_NTSC_M_JP,
 420                 .name           = "NTSC-JP",
 421                 .Fsc            = 28636363,
 422                 .swidth         = 640,
 423                 .sheight        = 480,
 424                 .totalwidth     = 910,
 425                 .adelay         = 0x68,
 426                 .bdelay         = 0x5d,
 427                 .iform          = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0),
 428                 .scaledtwidth   = 780,
 429                 .hdelayx1       = 135,
 430                 .hactivex1      = 754,
 431                 .vdelay         = 0x16,
 432                 .vbipack        = 144,
 433                 .sram           = -1,
 434                 .vbistart       = { 10, 273 },
 435                 CROPCAP(/* minhdelayx1 */ 68,
 436                         /* hdelayx1 */ 135,
 437                         /* swidth */ (640 * 910 + 780 / 2) / 780,
 438                         /* totalwidth */ 910,
 439                         /* sqwidth */ 780,
 440                         /* vdelay */ 0x16,
 441                         /* sheight */ 480,
 442                         /* videostart0 */ 23)
 443         },{
 444                 /* that one hopefully works with the strange timing
 445                  * which video recorders produce when playing a NTSC
 446                  * tape on a PAL TV ... */
 447                 .v4l2_id        = V4L2_STD_PAL_60,
 448                 .name           = "PAL-60",
 449                 .Fsc            = 35468950,
 450                 .swidth         = 924,
 451                 .sheight        = 480,
 452                 .totalwidth     = 1135,
 453                 .adelay         = 0x7f,
 454                 .bdelay         = 0x72,
 455                 .iform          = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
 456                 .scaledtwidth   = 1135,
 457                 .hdelayx1       = 186,
 458                 .hactivex1      = 924,
 459                 .vdelay         = 0x1a,
 460                 .vbipack        = 255,
 461                 .vtotal         = 524,
 462                 .sram           = -1,
 463                 .vbistart       = { 10, 273 },
 464                 CROPCAP(/* minhdelayx1 */ 68,
 465                         /* hdelayx1 */ 186,
 466                         /* swidth */ 924,
 467                         /* totalwidth */ 1135,
 468                         /* sqwidth */ 944,
 469                         /* vdelay */ 0x1a,
 470                         /* sheight */ 480,
 471                         /* videostart0 */ 23)
 472         }
 473 };
 474 static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms);
 475
 476 /* ----------------------------------------------------------------------- */
 477 /* bttv format list
 478    packed pixel formats must come first */
 479 static const struct bttv_format formats[] = {
 480         {
 481                 .name     = "8 bpp, gray",
 482                 .fourcc   = V4L2_PIX_FMT_GREY,
 483                 .btformat = BT848_COLOR_FMT_Y8,
 484                 .depth    = 8,
 485                 .flags    = FORMAT_FLAGS_PACKED,
 486         },{
 487                 .name     = "8 bpp, dithered color",
 488                 .fourcc   = V4L2_PIX_FMT_HI240,
 489                 .btformat = BT848_COLOR_FMT_RGB8,
 490                 .depth    = 8,
 491                 .flags    = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER,
 492         },{
 493                 .name     = "15 bpp RGB, le",
 494                 .fourcc   = V4L2_PIX_FMT_RGB555,
 495                 .btformat = BT848_COLOR_FMT_RGB15,
 496                 .depth    = 16,
 497                 .flags    = FORMAT_FLAGS_PACKED,
 498         },{
 499                 .name     = "15 bpp RGB, be",
 500                 .fourcc   = V4L2_PIX_FMT_RGB555X,
 501                 .btformat = BT848_COLOR_FMT_RGB15,
 502                 .btswap   = 0x03, /* byteswap */
 503                 .depth    = 16,
 504                 .flags    = FORMAT_FLAGS_PACKED,
 505         },{
 506                 .name     = "16 bpp RGB, le",
 507                 .fourcc   = V4L2_PIX_FMT_RGB565,
 508                 .btformat = BT848_COLOR_FMT_RGB16,
 509                 .depth    = 16,
 510                 .flags    = FORMAT_FLAGS_PACKED,
 511         },{
 512                 .name     = "16 bpp RGB, be",
 513                 .fourcc   = V4L2_PIX_FMT_RGB565X,
 514                 .btformat = BT848_COLOR_FMT_RGB16,
 515                 .btswap   = 0x03, /* byteswap */
 516                 .depth    = 16,
 517                 .flags    = FORMAT_FLAGS_PACKED,
 518         },{
 519                 .name     = "24 bpp RGB, le",
 520                 .fourcc   = V4L2_PIX_FMT_BGR24,
 521                 .btformat = BT848_COLOR_FMT_RGB24,
 522                 .depth    = 24,
 523                 .flags    = FORMAT_FLAGS_PACKED,
 524         },{
 525                 .name     = "32 bpp RGB, le",
 526                 .fourcc   = V4L2_PIX_FMT_BGR32,
 527                 .btformat = BT848_COLOR_FMT_RGB32,
 528                 .depth    = 32,
 529                 .flags    = FORMAT_FLAGS_PACKED,
 530         },{
 531                 .name     = "32 bpp RGB, be",
 532                 .fourcc   = V4L2_PIX_FMT_RGB32,
 533                 .btformat = BT848_COLOR_FMT_RGB32,
 534                 .btswap   = 0x0f, /* byte+word swap */
 535                 .depth    = 32,
 536                 .flags    = FORMAT_FLAGS_PACKED,
 537         },{
 538                 .name     = "4:2:2, packed, YUYV",
 539                 .fourcc   = V4L2_PIX_FMT_YUYV,
 540                 .btformat = BT848_COLOR_FMT_YUY2,
 541                 .depth    = 16,
 542                 .flags    = FORMAT_FLAGS_PACKED,
 543         },{
 544                 .name     = "4:2:2, packed, YUYV",
 545                 .fourcc   = V4L2_PIX_FMT_YUYV,
 546                 .btformat = BT848_COLOR_FMT_YUY2,
 547                 .depth    = 16,
 548                 .flags    = FORMAT_FLAGS_PACKED,
 549         },{
 550                 .name     = "4:2:2, packed, UYVY",
 551                 .fourcc   = V4L2_PIX_FMT_UYVY,
 552                 .btformat = BT848_COLOR_FMT_YUY2,
 553                 .btswap   = 0x03, /* byteswap */
 554                 .depth    = 16,
 555                 .flags    = FORMAT_FLAGS_PACKED,
 556         },{
 557                 .name     = "4:2:2, planar, Y-Cb-Cr",
 558                 .fourcc   = V4L2_PIX_FMT_YUV422P,
 559                 .btformat = BT848_COLOR_FMT_YCrCb422,
 560                 .depth    = 16,
 561                 .flags    = FORMAT_FLAGS_PLANAR,
 562                 .hshift   = 1,
 563                 .vshift   = 0,
 564         },{
 565                 .name     = "4:2:0, planar, Y-Cb-Cr",
 566                 .fourcc   = V4L2_PIX_FMT_YUV420,
 567                 .btformat = BT848_COLOR_FMT_YCrCb422,
 568                 .depth    = 12,
 569                 .flags    = FORMAT_FLAGS_PLANAR,
 570                 .hshift   = 1,
 571                 .vshift   = 1,
 572         },{
 573                 .name     = "4:2:0, planar, Y-Cr-Cb",
 574                 .fourcc   = V4L2_PIX_FMT_YVU420,
 575                 .btformat = BT848_COLOR_FMT_YCrCb422,
 576                 .depth    = 12,
 577                 .flags    = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
 578                 .hshift   = 1,
 579                 .vshift   = 1,
 580         },{
 581                 .name     = "4:1:1, planar, Y-Cb-Cr",
 582                 .fourcc   = V4L2_PIX_FMT_YUV411P,
 583                 .btformat = BT848_COLOR_FMT_YCrCb411,
 584                 .depth    = 12,
 585                 .flags    = FORMAT_FLAGS_PLANAR,
 586                 .hshift   = 2,
 587                 .vshift   = 0,
 588         },{
 589                 .name     = "4:1:0, planar, Y-Cb-Cr",
 590                 .fourcc   = V4L2_PIX_FMT_YUV410,
 591                 .btformat = BT848_COLOR_FMT_YCrCb411,
 592                 .depth    = 9,
 593                 .flags    = FORMAT_FLAGS_PLANAR,
 594                 .hshift   = 2,
 595                 .vshift   = 2,
 596         },{
 597                 .name     = "4:1:0, planar, Y-Cr-Cb",
 598                 .fourcc   = V4L2_PIX_FMT_YVU410,
 599                 .btformat = BT848_COLOR_FMT_YCrCb411,
 600                 .depth    = 9,
 601                 .flags    = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
 602                 .hshift   = 2,
 603                 .vshift   = 2,
 604         },{
 605                 .name     = "raw scanlines",
 606                 .fourcc   = -1,
 607                 .btformat = BT848_COLOR_FMT_RAW,
 608                 .depth    = 8,
 609                 .flags    = FORMAT_FLAGS_RAW,
 610         }
 611 };
 612 static const unsigned int FORMATS = ARRAY_SIZE(formats);
 613
 614 /* ----------------------------------------------------------------------- */
 615
 616 #define V4L2_CID_PRIVATE_CHROMA_AGC  (V4L2_CID_PRIVATE_BASE + 0)
 617 #define V4L2_CID_PRIVATE_COMBFILTER  (V4L2_CID_PRIVATE_BASE + 1)
 618 #define V4L2_CID_PRIVATE_AUTOMUTE    (V4L2_CID_PRIVATE_BASE + 2)
 619 #define V4L2_CID_PRIVATE_LUMAFILTER  (V4L2_CID_PRIVATE_BASE + 3)
 620 #define V4L2_CID_PRIVATE_AGC_CRUSH   (V4L2_CID_PRIVATE_BASE + 4)
 621 #define V4L2_CID_PRIVATE_VCR_HACK    (V4L2_CID_PRIVATE_BASE + 5)
 622 #define V4L2_CID_PRIVATE_WHITECRUSH_UPPER   (V4L2_CID_PRIVATE_BASE + 6)
 623 #define V4L2_CID_PRIVATE_WHITECRUSH_LOWER   (V4L2_CID_PRIVATE_BASE + 7)
 624 #define V4L2_CID_PRIVATE_UV_RATIO    (V4L2_CID_PRIVATE_BASE + 8)
 625 #define V4L2_CID_PRIVATE_FULL_LUMA_RANGE    (V4L2_CID_PRIVATE_BASE + 9)
 626 #define V4L2_CID_PRIVATE_CORING      (V4L2_CID_PRIVATE_BASE + 10)
 627 #define V4L2_CID_PRIVATE_LASTP1      (V4L2_CID_PRIVATE_BASE + 11)
 628
 629 static const struct v4l2_queryctrl no_ctl = {
 630         .name  = "42",
 631         .flags = V4L2_CTRL_FLAG_DISABLED,
 632 };
 633 static const struct v4l2_queryctrl bttv_ctls[] = {
 634         /* --- video --- */
 635         {
 636                 .id            = V4L2_CID_BRIGHTNESS,
 637                 .name          = "Brightness",
 638                 .minimum       = 0,
 639                 .maximum       = 65535,
 640                 .step          = 256,
 641                 .default_value = 32768,
 642                 .type          = V4L2_CTRL_TYPE_INTEGER,
 643         },{
 644                 .id            = V4L2_CID_CONTRAST,
 645                 .name          = "Contrast",
 646                 .minimum       = 0,
 647                 .maximum       = 65535,
 648                 .step          = 128,
 649                 .default_value = 32768,
 650                 .type          = V4L2_CTRL_TYPE_INTEGER,
 651         },{
 652                 .id            = V4L2_CID_SATURATION,
 653                 .name          = "Saturation",
 654                 .minimum       = 0,
 655                 .maximum       = 65535,
 656                 .step          = 128,
 657                 .default_value = 32768,
 658                 .type          = V4L2_CTRL_TYPE_INTEGER,
 659         },{
 660                 .id            = V4L2_CID_HUE,
 661                 .name          = "Hue",
 662                 .minimum       = 0,
 663                 .maximum       = 65535,
 664                 .step          = 256,
 665                 .default_value = 32768,
 666                 .type          = V4L2_CTRL_TYPE_INTEGER,
 667         },
 668         /* --- audio --- */
 669         {
 670                 .id            = V4L2_CID_AUDIO_MUTE,
 671                 .name          = "Mute",
 672                 .minimum       = 0,
 673                 .maximum       = 1,
 674                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 675         },{
 676                 .id            = V4L2_CID_AUDIO_VOLUME,
 677                 .name          = "Volume",
 678                 .minimum       = 0,
 679                 .maximum       = 65535,
 680                 .step          = 65535/100,
 681                 .default_value = 65535,
 682                 .type          = V4L2_CTRL_TYPE_INTEGER,
 683         },{
 684                 .id            = V4L2_CID_AUDIO_BALANCE,
 685                 .name          = "Balance",
 686                 .minimum       = 0,
 687                 .maximum       = 65535,
 688                 .step          = 65535/100,
 689                 .default_value = 32768,
 690                 .type          = V4L2_CTRL_TYPE_INTEGER,
 691         },{
 692                 .id            = V4L2_CID_AUDIO_BASS,
 693                 .name          = "Bass",
 694                 .minimum       = 0,
 695                 .maximum       = 65535,
 696                 .step          = 65535/100,
 697                 .default_value = 32768,
 698                 .type          = V4L2_CTRL_TYPE_INTEGER,
 699         },{
 700                 .id            = V4L2_CID_AUDIO_TREBLE,
 701                 .name          = "Treble",
 702                 .minimum       = 0,
 703                 .maximum       = 65535,
 704                 .step          = 65535/100,
 705                 .default_value = 32768,
 706                 .type          = V4L2_CTRL_TYPE_INTEGER,
 707         },
 708         /* --- private --- */
 709         {
 710                 .id            = V4L2_CID_PRIVATE_CHROMA_AGC,
 711                 .name          = "chroma agc",
 712                 .minimum       = 0,
 713                 .maximum       = 1,
 714                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 715         },{
 716                 .id            = V4L2_CID_PRIVATE_COMBFILTER,
 717                 .name          = "combfilter",
 718                 .minimum       = 0,
 719                 .maximum       = 1,
 720                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 721         },{
 722                 .id            = V4L2_CID_PRIVATE_AUTOMUTE,
 723                 .name          = "automute",
 724                 .minimum       = 0,
 725                 .maximum       = 1,
 726                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 727         },{
 728                 .id            = V4L2_CID_PRIVATE_LUMAFILTER,
 729                 .name          = "luma decimation filter",
 730                 .minimum       = 0,
 731                 .maximum       = 1,
 732                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 733         },{
 734                 .id            = V4L2_CID_PRIVATE_AGC_CRUSH,
 735                 .name          = "agc crush",
 736                 .minimum       = 0,
 737                 .maximum       = 1,
 738                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 739         },{
 740                 .id            = V4L2_CID_PRIVATE_VCR_HACK,
 741                 .name          = "vcr hack",
 742                 .minimum       = 0,
 743                 .maximum       = 1,
 744                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 745         },{
 746                 .id            = V4L2_CID_PRIVATE_WHITECRUSH_UPPER,
 747                 .name          = "whitecrush upper",
 748                 .minimum       = 0,
 749                 .maximum       = 255,
 750                 .step          = 1,
 751                 .default_value = 0xCF,
 752                 .type          = V4L2_CTRL_TYPE_INTEGER,
 753         },{
 754                 .id            = V4L2_CID_PRIVATE_WHITECRUSH_LOWER,
 755                 .name          = "whitecrush lower",
 756                 .minimum       = 0,
 757                 .maximum       = 255,
 758                 .step          = 1,
 759                 .default_value = 0x7F,
 760                 .type          = V4L2_CTRL_TYPE_INTEGER,
 761         },{
 762                 .id            = V4L2_CID_PRIVATE_UV_RATIO,
 763                 .name          = "uv ratio",
 764                 .minimum       = 0,
 765                 .maximum       = 100,
 766                 .step          = 1,
 767                 .default_value = 50,
 768                 .type          = V4L2_CTRL_TYPE_INTEGER,
 769         },{
 770                 .id            = V4L2_CID_PRIVATE_FULL_LUMA_RANGE,
 771                 .name          = "full luma range",
 772                 .minimum       = 0,
 773                 .maximum       = 1,
 774                 .type          = V4L2_CTRL_TYPE_BOOLEAN,
 775         },{
 776                 .id            = V4L2_CID_PRIVATE_CORING,
 777                 .name          = "coring",
 778                 .minimum       = 0,
 779                 .maximum       = 3,
 780                 .step          = 1,
 781                 .default_value = 0,
 782                 .type          = V4L2_CTRL_TYPE_INTEGER,
 783         }
 784
 785
 786
 787 };
 788 static const int BTTV_CTLS = ARRAY_SIZE(bttv_ctls);
 789
 790 static const struct v4l2_queryctrl *ctrl_by_id(int id)
 791 {
 792         int i;
 793
 794         for (i = 0; i < BTTV_CTLS; i++)
 795                 if (bttv_ctls[i].id == id)
 796                         return bttv_ctls+i;
 797         return NULL;
 798 }
 799
 800 /* ----------------------------------------------------------------------- */
 801 /* resource management                                                     */
 802
 803 /*
 804    RESOURCE_    allocated by                freed by
 805
 806    VIDEO_READ   bttv_read 1)                bttv_read 2)
 807
 808    VIDEO_STREAM VIDIOC_STREAMON             VIDIOC_STREAMOFF
 809                  VIDIOC_QBUF 1)              bttv_release
 810                  VIDIOCMCAPTURE 1)
 811
 812    OVERLAY       VIDIOCCAPTURE on            VIDIOCCAPTURE off
 813                  VIDIOC_OVERLAY on           VIDIOC_OVERLAY off
 814                  3)                          bttv_release
 815
 816    VBI           VIDIOC_STREAMON             VIDIOC_STREAMOFF
 817                  VIDIOC_QBUF 1)              bttv_release
 818                  bttv_read, bttv_poll 1) 4)
 819
 820    1) The resource must be allocated when we enter buffer prepare functions
 821       and remain allocated while buffers are in the DMA queue.
 822    2) This is a single frame read.
 823    3) VIDIOC_S_FBUF and VIDIOC_S_FMT (OVERLAY) still work when
 824       RESOURCE_OVERLAY is allocated.
 825    4) This is a continuous read, implies VIDIOC_STREAMON.
 826
 827    Note this driver permits video input and standard changes regardless if
 828    resources are allocated.
 829 */
 830
 831 #define VBI_RESOURCES (RESOURCE_VBI)
 832 #define VIDEO_RESOURCES (RESOURCE_VIDEO_READ | \
 833                          RESOURCE_VIDEO_STREAM | \
 834                          RESOURCE_OVERLAY)
 835
 836 static
 837 int check_alloc_btres(struct bttv *btv, struct bttv_fh *fh, int bit)
 838 {
 839         int xbits; /* mutual exclusive resources */
 840
 841         if (fh->resources & bit)
 842                 /* have it already allocated */
 843                 return 1;
 844
 845         xbits = bit;
 846         if (bit & (RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM))
 847                 xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM;
 848
 849         /* is it free? */
 850         mutex_lock(&btv->lock);
 851         if (btv->resources & xbits) {
 852                 /* no, someone else uses it */
 853                 goto fail;
 854         }
 855
 856         if ((bit & VIDEO_RESOURCES)
 857             && 0 == (btv->resources & VIDEO_RESOURCES)) {
 858                 /* Do crop - use current, don't - use default parameters. */
 859                 __s32 top = btv->crop[!!fh->do_crop].rect.top;
 860
 861                 if (btv->vbi_end > top)
 862                         goto fail;
 863
 864                 /* We cannot capture the same line as video and VBI data.
 865                    Claim scan lines crop[].rect.top to bottom. */
 866                 btv->crop_start = top;
 867         } else if (bit & VBI_RESOURCES) {
 868                 __s32 end = fh->vbi_fmt.end;
 869
 870                 if (end > btv->crop_start)
 871                         goto fail;
 872
 873                 /* Claim scan lines above fh->vbi_fmt.end. */
 874                 btv->vbi_end = end;
 875         }
 876
 877         /* it's free, grab it */
 878         fh->resources  |= bit;
 879         btv->resources |= bit;
 880         mutex_unlock(&btv->lock);
 881         return 1;
 882
 883  fail:
 884         mutex_unlock(&btv->lock);
 885         return 0;
 886 }
 887
 888 static
 889 int check_btres(struct bttv_fh *fh, int bit)
 890 {
 891         return (fh->resources & bit);
 892 }
 893
 894 static
 895 int locked_btres(struct bttv *btv, int bit)
 896 {
 897         return (btv->resources & bit);
 898 }
 899
 900 /* Call with btv->lock down. */
 901 static void
 902 disclaim_vbi_lines(struct bttv *btv)
 903 {
 904         btv->vbi_end = 0;
 905 }
 906
 907 /* Call with btv->lock down. */
 908 static void
 909 disclaim_video_lines(struct bttv *btv)
 910 {
 911         const struct bttv_tvnorm *tvnorm;
 912         u8 crop;
 913
 914         tvnorm = &bttv_tvnorms[btv->tvnorm];
 915         btv->crop_start = tvnorm->cropcap.bounds.top
 916                 + tvnorm->cropcap.bounds.height;
 917
 918         /* VBI capturing ends at VDELAY, start of video capturing, no
 919            matter how many lines the VBI RISC program expects. When video
 920            capturing is off, it shall no longer "preempt" VBI capturing,
 921            so we set VDELAY to maximum. */
 922         crop = btread(BT848_E_CROP) | 0xc0;
 923         btwrite(crop, BT848_E_CROP);
 924         btwrite(0xfe, BT848_E_VDELAY_LO);
 925         btwrite(crop, BT848_O_CROP);
 926         btwrite(0xfe, BT848_O_VDELAY_LO);
 927 }
 928
 929 static
 930 void free_btres(struct bttv *btv, struct bttv_fh *fh, int bits)
 931 {
 932         if ((fh->resources & bits) != bits) {
 933                 /* trying to free ressources not allocated by us ... */
 934                 printk("bttv: BUG! (btres)\n");
 935         }
 936         mutex_lock(&btv->lock);
 937         fh->resources  &= ~bits;
 938         btv->resources &= ~bits;
 939
 940         bits = btv->resources;
 941
 942         if (0 == (bits & VIDEO_RESOURCES))
 943                 disclaim_video_lines(btv);
 944
 945         if (0 == (bits & VBI_RESOURCES))
 946                 disclaim_vbi_lines(btv);
 947
 948         mutex_unlock(&btv->lock);
 949 }
 950
 951 /* ----------------------------------------------------------------------- */
 952 /* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC          */
 953
 954 /* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C
 955    PLL_X = Reference pre-divider (0=1, 1=2)
 956    PLL_C = Post divider (0=6, 1=4)
 957    PLL_I = Integer input
 958    PLL_F = Fractional input
 959
 960    F_input = 28.636363 MHz:
 961    PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0
 962 */
 963
 964 static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout)
 965 {
 966         unsigned char fl, fh, fi;
 967
 968         /* prevent overflows */
 969         fin/=4;
 970         fout/=4;
 971
 972         fout*=12;
 973         fi=fout/fin;
 974
 975         fout=(fout%fin)*256;
 976         fh=fout/fin;
 977
 978         fout=(fout%fin)*256;
 979         fl=fout/fin;
 980
 981         btwrite(fl, BT848_PLL_F_LO);
 982         btwrite(fh, BT848_PLL_F_HI);
 983         btwrite(fi|BT848_PLL_X, BT848_PLL_XCI);
 984 }
 985
 986 static void set_pll(struct bttv *btv)
 987 {
 988         int i;
 989
 990         if (!btv->pll.pll_crystal)
 991                 return;
 992
 993         if (btv->pll.pll_ofreq == btv->pll.pll_current) {
 994                 dprintk("bttv%d: PLL: no change required\n",btv->c.nr);
 995                 return;
 996         }
 997
 998         if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) {
 999                 /* no PLL needed */
1000                 if (btv->pll.pll_current == 0)
1001                         return;
1002                 bttv_printk(KERN_INFO "bttv%d: PLL can sleep, using XTAL (%d).\n",
1003                         btv->c.nr,btv->pll.pll_ifreq);
1004                 btwrite(0x00,BT848_TGCTRL);
1005                 btwrite(0x00,BT848_PLL_XCI);
1006                 btv->pll.pll_current = 0;
1007                 return;
1008         }
1009
1010         bttv_printk(KERN_INFO "bttv%d: PLL: %d => %d ",btv->c.nr,
1011                 btv->pll.pll_ifreq, btv->pll.pll_ofreq);
1012         set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq);
1013
1014         for (i=0; i<10; i++) {
1015                 /*  Let other people run while the PLL stabilizes */
1016                 bttv_printk(".");
1017                 msleep(10);
1018
1019                 if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) {
1020                         btwrite(0,BT848_DSTATUS);
1021                 } else {
1022                         btwrite(0x08,BT848_TGCTRL);
1023                         btv->pll.pll_current = btv->pll.pll_ofreq;
1024                         bttv_printk(" ok\n");
1025                         return;
1026                 }
1027         }
1028         btv->pll.pll_current = -1;
1029         bttv_printk("failed\n");
1030         return;
1031 }
1032
1033 /* used to switch between the bt848's analog/digital video capture modes */
1034 static void bt848A_set_timing(struct bttv *btv)
1035 {
1036         int i, len;
1037         int table_idx = bttv_tvnorms[btv->tvnorm].sram;
1038         int fsc       = bttv_tvnorms[btv->tvnorm].Fsc;
1039
1040         if (UNSET == bttv_tvcards[btv->c.type].muxsel[btv->input]) {
1041                 dprintk("bttv%d: load digital timing table (table_idx=%d)\n",
1042                         btv->c.nr,table_idx);
1043
1044                 /* timing change...reset timing generator address */
1045                 btwrite(0x00, BT848_TGCTRL);
1046                 btwrite(0x02, BT848_TGCTRL);
1047                 btwrite(0x00, BT848_TGCTRL);
1048
1049                 len=SRAM_Table[table_idx][0];
1050                 for(i = 1; i <= len; i++)
1051                         btwrite(SRAM_Table[table_idx][i],BT848_TGLB);
1052                 btv->pll.pll_ofreq = 27000000;
1053
1054                 set_pll(btv);
1055                 btwrite(0x11, BT848_TGCTRL);
1056                 btwrite(0x41, BT848_DVSIF);
1057         } else {
1058                 btv->pll.pll_ofreq = fsc;
1059                 set_pll(btv);
1060                 btwrite(0x0, BT848_DVSIF);
1061         }
1062 }
1063
1064 /* ----------------------------------------------------------------------- */
1065
1066 static void bt848_bright(struct bttv *btv, int bright)
1067 {
1068         int value;
1069
1070         // printk("bttv: set bright: %d\n",bright); // DEBUG
1071         btv->bright = bright;
1072
1073         /* We want -128 to 127 we get 0-65535 */
1074         value = (bright >> 8) - 128;
1075         btwrite(value & 0xff, BT848_BRIGHT);
1076 }
1077
1078 static void bt848_hue(struct bttv *btv, int hue)
1079 {
1080         int value;
1081
1082         btv->hue = hue;
1083
1084         /* -128 to 127 */
1085         value = (hue >> 8) - 128;
1086         btwrite(value & 0xff, BT848_HUE);
1087 }
1088
1089 static void bt848_contrast(struct bttv *btv, int cont)
1090 {
1091         int value,hibit;
1092
1093         btv->contrast = cont;
1094
1095         /* 0-511 */
1096         value = (cont  >> 7);
1097         hibit = (value >> 6) & 4;
1098         btwrite(value & 0xff, BT848_CONTRAST_LO);
1099         btaor(hibit, ~4, BT848_E_CONTROL);
1100         btaor(hibit, ~4, BT848_O_CONTROL);
1101 }
1102
1103 static void bt848_sat(struct bttv *btv, int color)
1104 {
1105         int val_u,val_v,hibits;
1106
1107         btv->saturation = color;
1108
1109         /* 0-511 for the color */
1110         val_u   = ((color * btv->opt_uv_ratio) / 50) >> 7;
1111         val_v   = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254;
1112         hibits  = (val_u >> 7) & 2;
1113         hibits |= (val_v >> 8) & 1;
1114         btwrite(val_u & 0xff, BT848_SAT_U_LO);
1115         btwrite(val_v & 0xff, BT848_SAT_V_LO);
1116         btaor(hibits, ~3, BT848_E_CONTROL);
1117         btaor(hibits, ~3, BT848_O_CONTROL);
1118 }
1119
1120 /* ----------------------------------------------------------------------- */
1121
1122 static int
1123 video_mux(struct bttv *btv, unsigned int input)
1124 {
1125         int mux,mask2;
1126
1127         if (input >= bttv_tvcards[btv->c.type].video_inputs)
1128                 return -EINVAL;
1129
1130         /* needed by RemoteVideo MX */
1131         mask2 = bttv_tvcards[btv->c.type].gpiomask2;
1132         if (mask2)
1133                 gpio_inout(mask2,mask2);
1134
1135         if (input == btv->svhs)  {
1136                 btor(BT848_CONTROL_COMP, BT848_E_CONTROL);
1137                 btor(BT848_CONTROL_COMP, BT848_O_CONTROL);
1138         } else {
1139                 btand(~BT848_CONTROL_COMP, BT848_E_CONTROL);
1140                 btand(~BT848_CONTROL_COMP, BT848_O_CONTROL);
1141         }
1142         mux = bttv_tvcards[btv->c.type].muxsel[input] & 3;
1143         btaor(mux<<5, ~(3<<5), BT848_IFORM);
1144         dprintk(KERN_DEBUG "bttv%d: video mux: input=%d mux=%d\n",
1145                 btv->c.nr,input,mux);
1146
1147         /* card specific hook */
1148         if(bttv_tvcards[btv->c.type].muxsel_hook)
1149                 bttv_tvcards[btv->c.type].muxsel_hook (btv, input);
1150         return 0;
1151 }
1152
1153 static char *audio_modes[] = {
1154         "audio: tuner", "audio: radio", "audio: extern",
1155         "audio: intern", "audio: mute"
1156 };
1157
1158 static int
1159 audio_mux(struct bttv *btv, int input, int mute)
1160 {
1161         int gpio_val, signal;
1162         struct v4l2_control ctrl;
1163         struct i2c_client *c;
1164
1165         gpio_inout(bttv_tvcards[btv->c.type].gpiomask,
1166                    bttv_tvcards[btv->c.type].gpiomask);
1167         signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC;
1168
1169         btv->mute = mute;
1170         btv->audio = input;
1171
1172         /* automute */
1173         mute = mute || (btv->opt_automute && !signal && !btv->radio_user);
1174
1175         if (mute)
1176                 gpio_val = bttv_tvcards[btv->c.type].gpiomute;
1177         else
1178                 gpio_val = bttv_tvcards[btv->c.type].gpiomux[input];
1179
1180         gpio_bits(bttv_tvcards[btv->c.type].gpiomask, gpio_val);
1181         if (bttv_gpio)
1182                 bttv_gpio_tracking(btv, audio_modes[mute ? 4 : input]);
1183         if (in_interrupt())
1184                 return 0;
1185
1186         ctrl.id = V4L2_CID_AUDIO_MUTE;
1187         ctrl.value = btv->mute;
1188         bttv_call_i2c_clients(btv, VIDIOC_S_CTRL, &ctrl);
1189         c = btv->i2c_msp34xx_client;
1190         if (c) {
1191                 struct v4l2_routing route;
1192
1193                 /* Note: the inputs tuner/radio/extern/intern are translated
1194                    to msp routings. This assumes common behavior for all msp3400
1195                    based TV cards. When this assumption fails, then the
1196                    specific MSP routing must be added to the card table.
1197                    For now this is sufficient. */
1198                 switch (input) {
1199                 case TVAUDIO_INPUT_RADIO:
1200                         route.input = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1201                                     MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1202                         break;
1203                 case TVAUDIO_INPUT_EXTERN:
1204                         route.input = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1,
1205                                     MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1206                         break;
1207                 case TVAUDIO_INPUT_INTERN:
1208                         /* Yes, this is the same input as for RADIO. I doubt
1209                            if this is ever used. The only board with an INTERN
1210                            input is the BTTV_BOARD_AVERMEDIA98. I wonder how
1211                            that was tested. My guess is that the whole INTERN
1212                            input does not work. */
1213                         route.input = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1214                                     MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1215                         break;
1216                 case TVAUDIO_INPUT_TUNER:
1217                 default:
1218                         /* This is the only card that uses TUNER2, and afaik,
1219                            is the only difference between the VOODOOTV_FM
1220                            and VOODOOTV_200 */
1221                         if (btv->c.type == BTTV_BOARD_VOODOOTV_200)
1222                                 route.input = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER2, \
1223                                         MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER);
1224                         else
1225                                 route.input = MSP_INPUT_DEFAULT;
1226                         break;
1227                 }
1228                 route.output = MSP_OUTPUT_DEFAULT;
1229                 c->driver->command(c, VIDIOC_INT_S_AUDIO_ROUTING, &route);
1230         }
1231         c = btv->i2c_tvaudio_client;
1232         if (c) {
1233                 struct v4l2_routing route;
1234
1235                 route.input = input;
1236                 route.output = 0;
1237                 c->driver->command(c, VIDIOC_INT_S_AUDIO_ROUTING, &route);
1238         }
1239         return 0;
1240 }
1241
1242 static inline int
1243 audio_mute(struct bttv *btv, int mute)
1244 {
1245         return audio_mux(btv, btv->audio, mute);
1246 }
1247
1248 static inline int
1249 audio_input(struct bttv *btv, int input)
1250 {
1251         return audio_mux(btv, input, btv->mute);
1252 }
1253
1254 static void
1255 bttv_crop_calc_limits(struct bttv_crop *c)
1256 {
1257         /* Scale factor min. 1:1, max. 16:1. Min. image size
1258            48 x 32. Scaled width must be a multiple of 4. */
1259
1260         if (1) {
1261                 /* For bug compatibility with VIDIOCGCAP and image
1262                    size checks in earlier driver versions. */
1263                 c->min_scaled_width = 48;
1264                 c->min_scaled_height = 32;
1265         } else {
1266                 c->min_scaled_width =
1267                         (max(48, c->rect.width >> 4) + 3) & ~3;
1268                 c->min_scaled_height =
1269                         max(32, c->rect.height >> 4);
1270         }
1271
1272         c->max_scaled_width  = c->rect.width & ~3;
1273         c->max_scaled_height = c->rect.height;
1274 }
1275
1276 static void
1277 bttv_crop_reset(struct bttv_crop *c, int norm)
1278 {
1279         c->rect = bttv_tvnorms[norm].cropcap.defrect;
1280         bttv_crop_calc_limits(c);
1281 }
1282
1283 /* Call with btv->lock down. */
1284 static int
1285 set_tvnorm(struct bttv *btv, unsigned int norm)
1286 {
1287         const struct bttv_tvnorm *tvnorm;
1288         v4l2_std_id id;
1289
1290         if (norm < 0 || norm >= BTTV_TVNORMS)
1291                 return -EINVAL;
1292
1293         tvnorm = &bttv_tvnorms[norm];
1294
1295         if (btv->tvnorm < 0 ||
1296             btv->tvnorm >= BTTV_TVNORMS ||
1297             0 != memcmp(&bttv_tvnorms[btv->tvnorm].cropcap,
1298                         &tvnorm->cropcap,
1299                         sizeof (tvnorm->cropcap))) {
1300                 bttv_crop_reset(&btv->crop[0], norm);
1301                 btv->crop[1] = btv->crop[0]; /* current = default */
1302
1303                 if (0 == (btv->resources & VIDEO_RESOURCES)) {
1304                         btv->crop_start = tvnorm->cropcap.bounds.top
1305                                 + tvnorm->cropcap.bounds.height;
1306                 }
1307         }
1308
1309         btv->tvnorm = norm;
1310
1311         btwrite(tvnorm->adelay, BT848_ADELAY);
1312         btwrite(tvnorm->bdelay, BT848_BDELAY);
1313         btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH),
1314               BT848_IFORM);
1315         btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE);
1316         btwrite(1, BT848_VBI_PACK_DEL);
1317         bt848A_set_timing(btv);
1318
1319         switch (btv->c.type) {
1320         case BTTV_BOARD_VOODOOTV_FM:
1321         case BTTV_BOARD_VOODOOTV_200:
1322                 bttv_tda9880_setnorm(btv,norm);
1323                 break;
1324         }
1325         id = tvnorm->v4l2_id;
1326         bttv_call_i2c_clients(btv, VIDIOC_S_STD, &id);
1327
1328         return 0;
1329 }
1330
1331 /* Call with btv->lock down. */
1332 static void
1333 set_input(struct bttv *btv, unsigned int input, unsigned int norm)
1334 {
1335         unsigned long flags;
1336
1337         btv->input = input;
1338         if (irq_iswitch) {
1339                 spin_lock_irqsave(&btv->s_lock,flags);
1340                 if (btv->curr.frame_irq) {
1341                         /* active capture -> delayed input switch */
1342                         btv->new_input = input;
1343                 } else {
1344                         video_mux(btv,input);
1345                 }
1346                 spin_unlock_irqrestore(&btv->s_lock,flags);
1347         } else {
1348                 video_mux(btv,input);
1349         }
1350         audio_input(btv,(input == bttv_tvcards[btv->c.type].tuner ?
1351                        TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN));
1352         set_tvnorm(btv, norm);
1353 }
1354
1355 static void init_irqreg(struct bttv *btv)
1356 {
1357         /* clear status */
1358         btwrite(0xfffffUL, BT848_INT_STAT);
1359
1360         if (bttv_tvcards[btv->c.type].no_video) {
1361                 /* i2c only */
1362                 btwrite(BT848_INT_I2CDONE,
1363                         BT848_INT_MASK);
1364         } else {
1365                 /* full video */
1366                 btwrite((btv->triton1)  |
1367                         (btv->gpioirq ? BT848_INT_GPINT : 0) |
1368                         BT848_INT_SCERR |
1369                         (fdsr ? BT848_INT_FDSR : 0) |
1370                         BT848_INT_RISCI|BT848_INT_OCERR|BT848_INT_VPRES|
1371                         BT848_INT_FMTCHG|BT848_INT_HLOCK|
1372                         BT848_INT_I2CDONE,
1373                         BT848_INT_MASK);
1374         }
1375 }
1376
1377 static void init_bt848(struct bttv *btv)
1378 {
1379         int val;
1380
1381         if (bttv_tvcards[btv->c.type].no_video) {
1382                 /* very basic init only */
1383                 init_irqreg(btv);
1384                 return;
1385         }
1386
1387         btwrite(0x00, BT848_CAP_CTL);
1388         btwrite(BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL);
1389         btwrite(BT848_IFORM_XTAUTO | BT848_IFORM_AUTO, BT848_IFORM);
1390
1391         /* set planar and packed mode trigger points and         */
1392         /* set rising edge of inverted GPINTR pin as irq trigger */
1393         btwrite(BT848_GPIO_DMA_CTL_PKTP_32|
1394                 BT848_GPIO_DMA_CTL_PLTP1_16|
1395                 BT848_GPIO_DMA_CTL_PLTP23_16|
1396                 BT848_GPIO_DMA_CTL_GPINTC|
1397                 BT848_GPIO_DMA_CTL_GPINTI,
1398                 BT848_GPIO_DMA_CTL);
1399
1400         val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1401         btwrite(val, BT848_E_SCLOOP);
1402         btwrite(val, BT848_O_SCLOOP);
1403
1404         btwrite(0x20, BT848_E_VSCALE_HI);
1405         btwrite(0x20, BT848_O_VSCALE_HI);
1406         btwrite(BT848_ADC_RESERVED | (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1407                 BT848_ADC);
1408
1409         btwrite(whitecrush_upper, BT848_WC_UP);
1410         btwrite(whitecrush_lower, BT848_WC_DOWN);
1411
1412         if (btv->opt_lumafilter) {
1413                 btwrite(0, BT848_E_CONTROL);
1414                 btwrite(0, BT848_O_CONTROL);
1415         } else {
1416                 btwrite(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1417                 btwrite(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1418         }
1419
1420         bt848_bright(btv,   btv->bright);
1421         bt848_hue(btv,      btv->hue);
1422         bt848_contrast(btv, btv->contrast);
1423         bt848_sat(btv,      btv->saturation);
1424
1425         /* interrupt */
1426         init_irqreg(btv);
1427 }
1428
1429 static void bttv_reinit_bt848(struct bttv *btv)
1430 {
1431         unsigned long flags;
1432
1433         if (bttv_verbose)
1434                 printk(KERN_INFO "bttv%d: reset, reinitialize\n",btv->c.nr);
1435         spin_lock_irqsave(&btv->s_lock,flags);
1436         btv->errors=0;
1437         bttv_set_dma(btv,0);
1438         spin_unlock_irqrestore(&btv->s_lock,flags);
1439
1440         init_bt848(btv);
1441         btv->pll.pll_current = -1;
1442         set_input(btv, btv->input, btv->tvnorm);
1443 }
1444
1445 static int bttv_g_ctrl(struct file *file, void *priv,
1446                                         struct v4l2_control *c)
1447 {
1448         struct bttv_fh *fh = priv;
1449         struct bttv *btv = fh->btv;
1450
1451         switch (c->id) {
1452         case V4L2_CID_BRIGHTNESS:
1453                 c->value = btv->bright;
1454                 break;
1455         case V4L2_CID_HUE:
1456                 c->value = btv->hue;
1457                 break;
1458         case V4L2_CID_CONTRAST:
1459                 c->value = btv->contrast;
1460                 break;
1461         case V4L2_CID_SATURATION:
1462                 c->value = btv->saturation;
1463                 break;
1464
1465         case V4L2_CID_AUDIO_MUTE:
1466         case V4L2_CID_AUDIO_VOLUME:
1467         case V4L2_CID_AUDIO_BALANCE:
1468         case V4L2_CID_AUDIO_BASS:
1469         case V4L2_CID_AUDIO_TREBLE:
1470                 bttv_call_i2c_clients(btv, VIDIOC_G_CTRL, c);
1471                 break;
1472
1473         case V4L2_CID_PRIVATE_CHROMA_AGC:
1474                 c->value = btv->opt_chroma_agc;
1475                 break;
1476         case V4L2_CID_PRIVATE_COMBFILTER:
1477                 c->value = btv->opt_combfilter;
1478                 break;
1479         case V4L2_CID_PRIVATE_LUMAFILTER:
1480                 c->value = btv->opt_lumafilter;
1481                 break;
1482         case V4L2_CID_PRIVATE_AUTOMUTE:
1483                 c->value = btv->opt_automute;
1484                 break;
1485         case V4L2_CID_PRIVATE_AGC_CRUSH:
1486                 c->value = btv->opt_adc_crush;
1487                 break;
1488         case V4L2_CID_PRIVATE_VCR_HACK:
1489                 c->value = btv->opt_vcr_hack;
1490                 break;
1491         case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1492                 c->value = btv->opt_whitecrush_upper;
1493                 break;
1494         case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1495                 c->value = btv->opt_whitecrush_lower;
1496                 break;
1497         case V4L2_CID_PRIVATE_UV_RATIO:
1498                 c->value = btv->opt_uv_ratio;
1499                 break;
1500         case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1501                 c->value = btv->opt_full_luma_range;
1502                 break;
1503         case V4L2_CID_PRIVATE_CORING:
1504                 c->value = btv->opt_coring;
1505                 break;
1506         default:
1507                 return -EINVAL;
1508         }
1509         return 0;
1510 }
1511
1512 static int bttv_s_ctrl(struct file *file, void *f,
1513                                         struct v4l2_control *c)
1514 {
1515         int err;
1516         int val;
1517         struct bttv_fh *fh = f;
1518         struct bttv *btv = fh->btv;
1519
1520         err = v4l2_prio_check(&btv->prio, &fh->prio);
1521         if (0 != err)
1522                 return err;
1523
1524         switch (c->id) {
1525         case V4L2_CID_BRIGHTNESS:
1526                 bt848_bright(btv, c->value);
1527                 break;
1528         case V4L2_CID_HUE:
1529                 bt848_hue(btv, c->value);
1530                 break;
1531         case V4L2_CID_CONTRAST:
1532                 bt848_contrast(btv, c->value);
1533                 break;
1534         case V4L2_CID_SATURATION:
1535                 bt848_sat(btv, c->value);
1536                 break;
1537         case V4L2_CID_AUDIO_MUTE:
1538                 audio_mute(btv, c->value);
1539                 /* fall through */
1540         case V4L2_CID_AUDIO_VOLUME:
1541                 if (btv->volume_gpio)
1542                         btv->volume_gpio(btv, c->value);
1543
1544                 bttv_call_i2c_clients(btv, VIDIOC_S_CTRL, c);
1545                 break;
1546         case V4L2_CID_AUDIO_BALANCE:
1547         case V4L2_CID_AUDIO_BASS:
1548         case V4L2_CID_AUDIO_TREBLE:
1549                 bttv_call_i2c_clients(btv, VIDIOC_S_CTRL, c);
1550                 break;
1551
1552         case V4L2_CID_PRIVATE_CHROMA_AGC:
1553                 btv->opt_chroma_agc = c->value;
1554                 val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1555                 btwrite(val, BT848_E_SCLOOP);
1556                 btwrite(val, BT848_O_SCLOOP);
1557                 break;
1558         case V4L2_CID_PRIVATE_COMBFILTER:
1559                 btv->opt_combfilter = c->value;
1560                 break;
1561         case V4L2_CID_PRIVATE_LUMAFILTER:
1562                 btv->opt_lumafilter = c->value;
1563                 if (btv->opt_lumafilter) {
1564                         btand(~BT848_CONTROL_LDEC, BT848_E_CONTROL);
1565                         btand(~BT848_CONTROL_LDEC, BT848_O_CONTROL);
1566                 } else {
1567                         btor(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1568                         btor(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1569                 }
1570                 break;
1571         case V4L2_CID_PRIVATE_AUTOMUTE:
1572                 btv->opt_automute = c->value;
1573                 break;
1574         case V4L2_CID_PRIVATE_AGC_CRUSH:
1575                 btv->opt_adc_crush = c->value;
1576                 btwrite(BT848_ADC_RESERVED |
1577                                 (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1578                                 BT848_ADC);
1579                 break;
1580         case V4L2_CID_PRIVATE_VCR_HACK:
1581                 btv->opt_vcr_hack = c->value;
1582                 break;
1583         case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1584                 btv->opt_whitecrush_upper = c->value;
1585                 btwrite(c->value, BT848_WC_UP);
1586                 break;
1587         case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1588                 btv->opt_whitecrush_lower = c->value;
1589                 btwrite(c->value, BT848_WC_DOWN);
1590                 break;
1591         case V4L2_CID_PRIVATE_UV_RATIO:
1592                 btv->opt_uv_ratio = c->value;
1593                 bt848_sat(btv, btv->saturation);
1594                 break;
1595         case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1596                 btv->opt_full_luma_range = c->value;
1597                 btaor((c->value<<7), ~BT848_OFORM_RANGE, BT848_OFORM);
1598                 break;
1599         case V4L2_CID_PRIVATE_CORING:
1600                 btv->opt_coring = c->value;
1601                 btaor((c->value<<5), ~BT848_OFORM_CORE32, BT848_OFORM);
1602                 break;
1603         default:
1604                 return -EINVAL;
1605         }
1606         return 0;
1607 }
1608
1609 /* ----------------------------------------------------------------------- */
1610
1611 void bttv_gpio_tracking(struct bttv *btv, char *comment)
1612 {
1613         unsigned int outbits, data;
1614         outbits = btread(BT848_GPIO_OUT_EN);
1615         data    = btread(BT848_GPIO_DATA);
1616         printk(KERN_DEBUG "bttv%d: gpio: en=%08x, out=%08x in=%08x [%s]\n",
1617                btv->c.nr,outbits,data & outbits, data & ~outbits, comment);
1618 }
1619
1620 static void bttv_field_count(struct bttv *btv)
1621 {
1622         int need_count = 0;
1623
1624         if (btv->users)
1625                 need_count++;
1626
1627         if (need_count) {
1628                 /* start field counter */
1629                 btor(BT848_INT_VSYNC,BT848_INT_MASK);
1630         } else {
1631                 /* stop field counter */
1632                 btand(~BT848_INT_VSYNC,BT848_INT_MASK);
1633                 btv->field_count = 0;
1634         }
1635 }
1636
1637 static const struct bttv_format*
1638 format_by_fourcc(int fourcc)
1639 {
1640         unsigned int i;
1641
1642         for (i = 0; i < FORMATS; i++) {
1643                 if (-1 == formats[i].fourcc)
1644                         continue;
1645                 if (formats[i].fourcc == fourcc)
1646                         return formats+i;
1647         }
1648         return NULL;
1649 }
1650
1651 /* ----------------------------------------------------------------------- */
1652 /* misc helpers                                                            */
1653
1654 static int
1655 bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh,
1656                     struct bttv_buffer *new)
1657 {
1658         struct bttv_buffer *old;
1659         unsigned long flags;
1660         int retval = 0;
1661
1662         dprintk("switch_overlay: enter [new=%p]\n",new);
1663         if (new)
1664                 new->vb.state = VIDEOBUF_DONE;
1665         spin_lock_irqsave(&btv->s_lock,flags);
1666         old = btv->screen;
1667         btv->screen = new;
1668         btv->loop_irq |= 1;
1669         bttv_set_dma(btv, 0x03);
1670         spin_unlock_irqrestore(&btv->s_lock,flags);
1671         if (NULL != old) {
1672                 dprintk("switch_overlay: old=%p state is %d\n",old,old->vb.state);
1673                 bttv_dma_free(&fh->cap,btv, old);
1674                 kfree(old);
1675         }
1676         if (NULL == new)
1677                 free_btres(btv,fh,RESOURCE_OVERLAY);
1678         dprintk("switch_overlay: done\n");
1679         return retval;
1680 }
1681
1682 /* ----------------------------------------------------------------------- */
1683 /* video4linux (1) interface                                               */
1684
1685 static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
1686                                struct bttv_buffer *buf,
1687                                const struct bttv_format *fmt,
1688                                unsigned int width, unsigned int height,
1689                                enum v4l2_field field)
1690 {
1691         struct bttv_fh *fh = q->priv_data;
1692         int redo_dma_risc = 0;
1693         struct bttv_crop c;
1694         int norm;
1695         int rc;
1696
1697         /* check settings */
1698         if (NULL == fmt)
1699                 return -EINVAL;
1700         if (fmt->btformat == BT848_COLOR_FMT_RAW) {
1701                 width  = RAW_BPL;
1702                 height = RAW_LINES*2;
1703                 if (width*height > buf->vb.bsize)
1704                         return -EINVAL;
1705                 buf->vb.size = buf->vb.bsize;
1706
1707                 /* Make sure tvnorm and vbi_end remain consistent
1708                    until we're done. */
1709                 mutex_lock(&btv->lock);
1710
1711                 norm = btv->tvnorm;
1712
1713                 /* In this mode capturing always starts at defrect.top
1714                    (default VDELAY), ignoring cropping parameters. */
1715                 if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) {
1716                         mutex_unlock(&btv->lock);
1717                         return -EINVAL;
1718                 }
1719
1720                 mutex_unlock(&btv->lock);
1721
1722                 c.rect = bttv_tvnorms[norm].cropcap.defrect;
1723         } else {
1724                 mutex_lock(&btv->lock);
1725
1726                 norm = btv->tvnorm;
1727                 c = btv->crop[!!fh->do_crop];
1728
1729                 mutex_unlock(&btv->lock);
1730
1731                 if (width < c.min_scaled_width ||
1732                     width > c.max_scaled_width ||
1733                     height < c.min_scaled_height)
1734                         return -EINVAL;
1735
1736                 switch (field) {
1737                 case V4L2_FIELD_TOP:
1738                 case V4L2_FIELD_BOTTOM:
1739                 case V4L2_FIELD_ALTERNATE:
1740                         /* btv->crop counts frame lines. Max. scale
1741                            factor is 16:1 for frames, 8:1 for fields. */
1742                         if (height * 2 > c.max_scaled_height)
1743                                 return -EINVAL;
1744                         break;
1745
1746                 default:
1747                         if (height > c.max_scaled_height)
1748                                 return -EINVAL;
1749                         break;
1750                 }
1751
1752                 buf->vb.size = (width * height * fmt->depth) >> 3;
1753                 if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
1754                         return -EINVAL;
1755         }
1756
1757         /* alloc + fill struct bttv_buffer (if changed) */
1758         if (buf->vb.width != width || buf->vb.height != height ||
1759             buf->vb.field != field ||
1760             buf->tvnorm != norm || buf->fmt != fmt ||
1761             buf->crop.top != c.rect.top ||
1762             buf->crop.left != c.rect.left ||
1763             buf->crop.width != c.rect.width ||
1764             buf->crop.height != c.rect.height) {
1765                 buf->vb.width  = width;
1766                 buf->vb.height = height;
1767                 buf->vb.field  = field;
1768                 buf->tvnorm    = norm;
1769                 buf->fmt       = fmt;
1770                 buf->crop      = c.rect;
1771                 redo_dma_risc = 1;
1772         }
1773
1774         /* alloc risc memory */
1775         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
1776                 redo_dma_risc = 1;
1777                 if (0 != (rc = videobuf_iolock(q,&buf->vb,&btv->fbuf)))
1778                         goto fail;
1779         }
1780
1781         if (redo_dma_risc)
1782                 if (0 != (rc = bttv_buffer_risc(btv,buf)))
1783                         goto fail;
1784
1785         buf->vb.state = VIDEOBUF_PREPARED;
1786         return 0;
1787
1788  fail:
1789         bttv_dma_free(q,btv,buf);
1790         return rc;
1791 }
1792
1793 static int
1794 buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
1795 {
1796         struct bttv_fh *fh = q->priv_data;
1797
1798         *size = fh->fmt->depth*fh->width*fh->height >> 3;
1799         if (0 == *count)
1800                 *count = gbuffers;
1801         while (*size * *count > gbuffers * gbufsize)
1802                 (*count)--;
1803         return 0;
1804 }
1805
1806 static int
1807 buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
1808                enum v4l2_field field)
1809 {
1810         struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1811         struct bttv_fh *fh = q->priv_data;
1812
1813         return bttv_prepare_buffer(q,fh->btv, buf, fh->fmt,
1814                                    fh->width, fh->height, field);
1815 }
1816
1817 static void
1818 buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
1819 {
1820         struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1821         struct bttv_fh *fh = q->priv_data;
1822         struct bttv    *btv = fh->btv;
1823
1824         buf->vb.state = VIDEOBUF_QUEUED;
1825         list_add_tail(&buf->vb.queue,&btv->capture);
1826         if (!btv->curr.frame_irq) {
1827                 btv->loop_irq |= 1;
1828                 bttv_set_dma(btv, 0x03);
1829         }
1830 }
1831
1832 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
1833 {
1834         struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1835         struct bttv_fh *fh = q->priv_data;
1836
1837         bttv_dma_free(q,fh->btv,buf);
1838 }
1839
1840 static struct videobuf_queue_ops bttv_video_qops = {
1841         .buf_setup    = buffer_setup,
1842         .buf_prepare  = buffer_prepare,
1843         .buf_queue    = buffer_queue,
1844         .buf_release  = buffer_release,
1845 };
1846
1847 static int bttv_s_std(struct file *file, void *priv, v4l2_std_id *id)
1848 {
1849         struct bttv_fh *fh  = priv;
1850         struct bttv *btv = fh->btv;
1851         unsigned int i;
1852         int err;
1853
1854         err = v4l2_prio_check(&btv->prio, &fh->prio);
1855         if (0 != err)
1856                 return err;
1857
1858         for (i = 0; i < BTTV_TVNORMS; i++)
1859                 if (*id & bttv_tvnorms[i].v4l2_id)
1860                         break;
1861         if (i == BTTV_TVNORMS)
1862                 return -EINVAL;
1863
1864         mutex_lock(&btv->lock);
1865         set_tvnorm(btv, i);
1866         mutex_unlock(&btv->lock);
1867
1868         return 0;
1869 }
1870
1871 static int bttv_querystd(struct file *file, void *f, v4l2_std_id *id)
1872 {
1873         struct bttv_fh *fh = f;
1874         struct bttv *btv = fh->btv;
1875
1876         if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML)
1877                 *id = V4L2_STD_625_50;
1878         else
1879                 *id = V4L2_STD_525_60;
1880         return 0;
1881 }
1882
1883 static int bttv_enum_input(struct file *file, void *priv,
1884                                         struct v4l2_input *i)
1885 {
1886         struct bttv_fh *fh = priv;
1887         struct bttv *btv = fh->btv;
1888         unsigned int n;
1889
1890         n = i->index;
1891
1892         if (n >= bttv_tvcards[btv->c.type].video_inputs)
1893                 return -EINVAL;
1894
1895         memset(i, 0, sizeof(*i));
1896
1897         i->index    = n;
1898         i->type     = V4L2_INPUT_TYPE_CAMERA;
1899         i->audioset = 1;
1900
1901         if (i->index == bttv_tvcards[btv->c.type].tuner) {
1902                 sprintf(i->name, "Television");
1903                 i->type  = V4L2_INPUT_TYPE_TUNER;
1904                 i->tuner = 0;
1905         } else if (i->index == btv->svhs) {
1906                 sprintf(i->name, "S-Video");
1907         } else {
1908                 sprintf(i->name, "Composite%d", i->index);
1909         }
1910
1911         if (i->index == btv->input) {
1912                 __u32 dstatus = btread(BT848_DSTATUS);
1913                 if (0 == (dstatus & BT848_DSTATUS_PRES))
1914                         i->status |= V4L2_IN_ST_NO_SIGNAL;
1915                 if (0 == (dstatus & BT848_DSTATUS_HLOC))
1916                         i->status |= V4L2_IN_ST_NO_H_LOCK;
1917         }
1918
1919         for (n = 0; n < BTTV_TVNORMS; n++)
1920                 i->std |= bttv_tvnorms[n].v4l2_id;
1921
1922         return 0;
1923 }
1924
1925 static int bttv_g_input(struct file *file, void *priv, unsigned int *i)
1926 {
1927         struct bttv_fh *fh = priv;
1928         struct bttv *btv = fh->btv;
1929
1930         *i = btv->input;
1931         return 0;
1932 }
1933
1934 static int bttv_s_input(struct file *file, void *priv, unsigned int i)
1935 {
1936         struct bttv_fh *fh  = priv;
1937         struct bttv *btv = fh->btv;
1938
1939         int err;
1940
1941         err = v4l2_prio_check(&btv->prio, &fh->prio);
1942         if (0 != err)
1943                 return err;
1944
1945         if (i > bttv_tvcards[btv->c.type].video_inputs)
1946                 return -EINVAL;
1947
1948         mutex_lock(&btv->lock);
1949         set_input(btv, i, btv->tvnorm);
1950         mutex_unlock(&btv->lock);
1951         return 0;
1952 }
1953
1954 static int bttv_s_tuner(struct file *file, void *priv,
1955                                         struct v4l2_tuner *t)
1956 {
1957         struct bttv_fh *fh  = priv;
1958         struct bttv *btv = fh->btv;
1959         int err;
1960
1961         err = v4l2_prio_check(&btv->prio, &fh->prio);
1962         if (0 != err)
1963                 return err;
1964
1965         if (UNSET == bttv_tvcards[btv->c.type].tuner)
1966                 return -EINVAL;
1967
1968         if (0 != t->index)
1969                 return -EINVAL;
1970
1971         mutex_lock(&btv->lock);
1972         bttv_call_i2c_clients(btv, VIDIOC_S_TUNER, t);
1973
1974         if (btv->audio_mode_gpio)
1975                 btv->audio_mode_gpio(btv, t, 1);
1976
1977         mutex_unlock(&btv->lock);
1978
1979         return 0;
1980 }
1981
1982 static int bttv_g_frequency(struct file *file, void *priv,
1983                                         struct v4l2_frequency *f)
1984 {
1985         struct bttv_fh *fh  = priv;
1986         struct bttv *btv = fh->btv;
1987         int err;
1988
1989         err = v4l2_prio_check(&btv->prio, &fh->prio);
1990         if (0 != err)
1991                 return err;
1992
1993         f->type = V4L2_TUNER_ANALOG_TV;
1994         f->frequency = btv->freq;
1995
1996         return 0;
1997 }
1998
1999 static int bttv_s_frequency(struct file *file, void *priv,
2000                                         struct v4l2_frequency *f)
2001 {
2002         struct bttv_fh *fh  = priv;
2003         struct bttv *btv = fh->btv;
2004         int err;
2005
2006         err = v4l2_prio_check(&btv->prio, &fh->prio);
2007         if (0 != err)
2008                 return err;
2009
2010         if (unlikely(f->tuner != 0))
2011                 return -EINVAL;
2012         if (unlikely(f->type != V4L2_TUNER_ANALOG_TV))
2013                 return -EINVAL;
2014         mutex_lock(&btv->lock);
2015         btv->freq = f->frequency;
2016         bttv_call_i2c_clients(btv, VIDIOC_S_FREQUENCY, f);
2017         if (btv->has_matchbox && btv->radio_user)
2018                 tea5757_set_freq(btv, btv->freq);
2019         mutex_unlock(&btv->lock);
2020         return 0;
2021 }
2022
2023 static int bttv_log_status(struct file *file, void *f)
2024 {
2025         struct bttv_fh *fh  = f;
2026         struct bttv *btv = fh->btv;
2027
2028         printk(KERN_INFO "bttv%d: ========  START STATUS CARD #%d  ========\n",
2029                         btv->c.nr, btv->c.nr);
2030         bttv_call_i2c_clients(btv, VIDIOC_LOG_STATUS, NULL);
2031         printk(KERN_INFO "bttv%d: ========  END STATUS CARD   #%d  ========\n",
2032                         btv->c.nr, btv->c.nr);
2033         return 0;
2034 }
2035
2036 #ifdef CONFIG_VIDEO_ADV_DEBUG
2037 static int bttv_g_register(struct file *file, void *f,
2038                                         struct v4l2_register *reg)
2039 {
2040         struct bttv_fh *fh = f;
2041         struct bttv *btv = fh->btv;
2042
2043         if (!capable(CAP_SYS_ADMIN))
2044                 return -EPERM;
2045
2046         if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
2047                 return -EINVAL;
2048
2049         /* bt848 has a 12-bit register space */
2050         reg->reg &= 0xfff;
2051         reg->val = btread(reg->reg);
2052
2053         return 0;
2054 }
2055
2056 static int bttv_s_register(struct file *file, void *f,
2057                                         struct v4l2_register *reg)
2058 {
2059         struct bttv_fh *fh = f;
2060         struct bttv *btv = fh->btv;
2061
2062         if (!capable(CAP_SYS_ADMIN))
2063                 return -EPERM;
2064
2065         if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
2066                 return -EINVAL;
2067
2068         /* bt848 has a 12-bit register space */
2069         reg->reg &= 0xfff;
2070         btwrite(reg->val, reg->reg);
2071
2072         return 0;
2073 }
2074 #endif
2075
2076 /* Given cropping boundaries b and the scaled width and height of a
2077    single field or frame, which must not exceed hardware limits, this
2078    function adjusts the cropping parameters c. */
2079 static void
2080 bttv_crop_adjust        (struct bttv_crop *             c,
2081                          const struct v4l2_rect *       b,
2082                          __s32                          width,
2083                          __s32                          height,
2084                          enum v4l2_field                field)
2085 {
2086         __s32 frame_height = height << !V4L2_FIELD_HAS_BOTH(field);
2087         __s32 max_left;
2088         __s32 max_top;
2089
2090         if (width < c->min_scaled_width) {
2091                 /* Max. hor. scale factor 16:1. */
2092                 c->rect.width = width * 16;
2093         } else if (width > c->max_scaled_width) {
2094                 /* Min. hor. scale factor 1:1. */
2095                 c->rect.width = width;
2096
2097                 max_left = b->left + b->width - width;
2098                 max_left = min(max_left, (__s32) MAX_HDELAY);
2099                 if (c->rect.left > max_left)
2100                         c->rect.left = max_left;
2101         }
2102
2103         if (height < c->min_scaled_height) {
2104                 /* Max. vert. scale factor 16:1, single fields 8:1. */
2105                 c->rect.height = height * 16;
2106         } else if (frame_height > c->max_scaled_height) {
2107                 /* Min. vert. scale factor 1:1.
2108                    Top and height count field lines times two. */
2109                 c->rect.height = (frame_height + 1) & ~1;
2110
2111                 max_top = b->top + b->height - c->rect.height;
2112                 if (c->rect.top > max_top)
2113                         c->rect.top = max_top;
2114         }
2115
2116         bttv_crop_calc_limits(c);
2117 }
2118
2119 /* Returns an error if scaling to a frame or single field with the given
2120    width and height is not possible with the current cropping parameters
2121    and width aligned according to width_mask. If adjust_size is TRUE the
2122    function may adjust the width and/or height instead, rounding width
2123    to (width + width_bias) & width_mask. If adjust_crop is TRUE it may
2124    also adjust the current cropping parameters to get closer to the
2125    desired image size. */
2126 static int
2127 limit_scaled_size       (struct bttv_fh *               fh,
2128                          __s32 *                        width,
2129                          __s32 *                        height,
2130                          enum v4l2_field                field,
2131                          unsigned int                   width_mask,
2132                          unsigned int                   width_bias,
2133                          int                            adjust_size,
2134                          int                            adjust_crop)
2135 {
2136         struct bttv *btv = fh->btv;
2137         const struct v4l2_rect *b;
2138         struct bttv_crop *c;
2139         __s32 min_width;
2140         __s32 min_height;
2141         __s32 max_width;
2142         __s32 max_height;
2143         int rc;
2144
2145         BUG_ON((int) width_mask >= 0 ||
2146                width_bias >= (unsigned int) -width_mask);
2147
2148         /* Make sure tvnorm, vbi_end and the current cropping parameters
2149            remain consistent until we're done. */
2150         mutex_lock(&btv->lock);
2151
2152         b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
2153
2154         /* Do crop - use current, don't - use default parameters. */
2155         c = &btv->crop[!!fh->do_crop];
2156
2157         if (fh->do_crop
2158             && adjust_size
2159             && adjust_crop
2160             && !locked_btres(btv, VIDEO_RESOURCES)) {
2161                 min_width = 48;
2162                 min_height = 32;
2163
2164                 /* We cannot scale up. When the scaled image is larger
2165                    than crop.rect we adjust the crop.rect as required
2166                    by the V4L2 spec, hence cropcap.bounds are our limit. */
2167                 max_width = min(b->width, (__s32) MAX_HACTIVE);
2168                 max_height = b->height;
2169
2170                 /* We cannot capture the same line as video and VBI data.
2171                    Note btv->vbi_end is really a minimum, see
2172                    bttv_vbi_try_fmt(). */
2173                 if (btv->vbi_end > b->top) {
2174                         max_height -= btv->vbi_end - b->top;
2175                         rc = -EBUSY;
2176                         if (min_height > max_height)
2177                                 goto fail;
2178                 }
2179         } else {
2180                 rc = -EBUSY;
2181                 if (btv->vbi_end > c->rect.top)
2182                         goto fail;
2183
2184                 min_width  = c->min_scaled_width;
2185                 min_height = c->min_scaled_height;
2186                 max_width  = c->max_scaled_width;
2187                 max_height = c->max_scaled_height;
2188
2189                 adjust_crop = 0;
2190         }
2191
2192         min_width = (min_width - width_mask - 1) & width_mask;
2193         max_width = max_width & width_mask;
2194
2195         /* Max. scale factor is 16:1 for frames, 8:1 for fields. */
2196         min_height = min_height;
2197         /* Min. scale factor is 1:1. */
2198         max_height >>= !V4L2_FIELD_HAS_BOTH(field);
2199
2200         if (adjust_size) {
2201                 *width = clamp(*width, min_width, max_width);
2202                 *height = clamp(*height, min_height, max_height);
2203
2204                 /* Round after clamping to avoid overflow. */
2205                 *width = (*width + width_bias) & width_mask;
2206
2207                 if (adjust_crop) {
2208                         bttv_crop_adjust(c, b, *width, *height, field);
2209
2210                         if (btv->vbi_end > c->rect.top) {
2211                                 /* Move the crop window out of the way. */
2212                                 c->rect.top = btv->vbi_end;
2213                         }
2214                 }
2215         } else {
2216                 rc = -EINVAL;
2217                 if (*width  < min_width ||
2218                     *height < min_height ||
2219                     *width  > max_width ||
2220                     *height > max_height ||
2221                     0 != (*width & ~width_mask))
2222                         goto fail;
2223         }
2224
2225         rc = 0; /* success */
2226
2227  fail:
2228         mutex_unlock(&btv->lock);
2229
2230         return rc;
2231 }
2232
2233 /* Returns an error if the given overlay window dimensions are not
2234    possible with the current cropping parameters. If adjust_size is
2235    TRUE the function may adjust the window width and/or height
2236    instead, however it always rounds the horizontal position and
2237    width as btcx_align() does. If adjust_crop is TRUE the function
2238    may also adjust the current cropping parameters to get closer
2239    to the desired window size. */
2240 static int
2241 verify_window           (struct bttv_fh *               fh,
2242                          struct v4l2_window *           win,
2243                          int                            adjust_size,
2244                          int                            adjust_crop)
2245 {
2246         enum v4l2_field field;
2247         unsigned int width_mask;
2248         int rc;
2249
2250         if (win->w.width  < 48 || win->w.height < 32)
2251                 return -EINVAL;
2252         if (win->clipcount > 2048)
2253                 return -EINVAL;
2254
2255         field = win->field;
2256
2257         if (V4L2_FIELD_ANY == field) {
2258                 __s32 height2;
2259
2260                 height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1;
2261                 field = (win->w.height > height2)
2262                         ? V4L2_FIELD_INTERLACED
2263                         : V4L2_FIELD_TOP;
2264         }
2265         switch (field) {
2266         case V4L2_FIELD_TOP:
2267         case V4L2_FIELD_BOTTOM:
2268         case V4L2_FIELD_INTERLACED:
2269                 break;
2270         default:
2271                 return -EINVAL;
2272         }
2273
2274         /* 4-byte alignment. */
2275         if (NULL == fh->ovfmt)
2276                 return -EINVAL;
2277         width_mask = ~0;
2278         switch (fh->ovfmt->depth) {
2279         case 8:
2280         case 24:
2281                 width_mask = ~3;
2282                 break;
2283         case 16:
2284                 width_mask = ~1;
2285                 break;
2286         case 32:
2287                 break;
2288         default:
2289                 BUG();
2290         }
2291
2292         win->w.width -= win->w.left & ~width_mask;
2293         win->w.left = (win->w.left - width_mask - 1) & width_mask;
2294
2295         rc = limit_scaled_size(fh, &win->w.width, &win->w.height,
2296                                field, width_mask,
2297                                /* width_bias: round down */ 0,
2298                                adjust_size, adjust_crop);
2299         if (0 != rc)
2300                 return rc;
2301
2302         win->field = field;
2303         return 0;
2304 }
2305
2306 static int setup_window(struct bttv_fh *fh, struct bttv *btv,
2307                         struct v4l2_window *win, int fixup)
2308 {
2309         struct v4l2_clip *clips = NULL;
2310         int n,size,retval = 0;
2311
2312         if (NULL == fh->ovfmt)
2313                 return -EINVAL;
2314         if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED))
2315                 return -EINVAL;
2316         retval = verify_window(fh, win,
2317                                /* adjust_size */ fixup,
2318                                /* adjust_crop */ fixup);
2319         if (0 != retval)
2320                 return retval;
2321
2322         /* copy clips  --  luckily v4l1 + v4l2 are binary
2323            compatible here ...*/
2324         n = win->clipcount;
2325         size = sizeof(*clips)*(n+4);
2326         clips = kmalloc(size,GFP_KERNEL);
2327         if (NULL == clips)
2328                 return -ENOMEM;
2329         if (n > 0) {
2330                 if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) {
2331                         kfree(clips);
2332                         return -EFAULT;
2333                 }
2334         }
2335         /* clip against screen */
2336         if (NULL != btv->fbuf.base)
2337                 n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height,
2338                                       &win->w, clips, n);
2339         btcx_sort_clips(clips,n);
2340
2341         /* 4-byte alignments */
2342         switch (fh->ovfmt->depth) {
2343         case 8:
2344         case 24:
2345                 btcx_align(&win->w, clips, n, 3);
2346                 break;
2347         case 16:
2348                 btcx_align(&win->w, clips, n, 1);
2349                 break;
2350         case 32:
2351                 /* no alignment fixups needed */
2352                 break;
2353         default:
2354                 BUG();
2355         }
2356
2357         mutex_lock(&fh->cap.lock);
2358                 kfree(fh->ov.clips);
2359         fh->ov.clips    = clips;
2360         fh->ov.nclips   = n;
2361
2362         fh->ov.w        = win->w;
2363         fh->ov.field    = win->field;
2364         fh->ov.setup_ok = 1;
2365         btv->init.ov.w.width   = win->w.width;
2366         btv->init.ov.w.height  = win->w.height;
2367         btv->init.ov.field     = win->field;
2368
2369         /* update overlay if needed */
2370         retval = 0;
2371         if (check_btres(fh, RESOURCE_OVERLAY)) {
2372                 struct bttv_buffer *new;
2373
2374                 new = videobuf_pci_alloc(sizeof(*new));
2375                 new->crop = btv->crop[!!fh->do_crop].rect;
2376                 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2377                 retval = bttv_switch_overlay(btv,fh,new);
2378         }
2379         mutex_unlock(&fh->cap.lock);
2380         return retval;
2381 }
2382
2383 /* ----------------------------------------------------------------------- */
2384
2385 static struct videobuf_queue* bttv_queue(struct bttv_fh *fh)
2386 {
2387         struct videobuf_queue* q = NULL;
2388
2389         switch (fh->type) {
2390         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2391                 q = &fh->cap;
2392                 break;
2393         case V4L2_BUF_TYPE_VBI_CAPTURE:
2394                 q = &fh->vbi;
2395                 break;
2396         default:
2397                 BUG();
2398         }
2399         return q;
2400 }
2401
2402 static int bttv_resource(struct bttv_fh *fh)
2403 {
2404         int res = 0;
2405
2406         switch (fh->type) {
2407         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2408                 res = RESOURCE_VIDEO_STREAM;
2409                 break;
2410         case V4L2_BUF_TYPE_VBI_CAPTURE:
2411                 res = RESOURCE_VBI;
2412                 break;
2413         default:
2414                 BUG();
2415         }
2416         return res;
2417 }
2418
2419 static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type)
2420 {
2421         struct videobuf_queue *q = bttv_queue(fh);
2422         int res = bttv_resource(fh);
2423
2424         if (check_btres(fh,res))
2425                 return -EBUSY;
2426         if (videobuf_queue_is_busy(q))
2427                 return -EBUSY;
2428         fh->type = type;
2429         return 0;
2430 }
2431
2432 static void
2433 pix_format_set_size     (struct v4l2_pix_format *       f,
2434                          const struct bttv_format *     fmt,
2435                          unsigned int                   width,
2436                          unsigned int                   height)
2437 {
2438         f->width = width;
2439         f->height = height;
2440
2441         if (fmt->flags & FORMAT_FLAGS_PLANAR) {
2442                 f->bytesperline = width; /* Y plane */
2443                 f->sizeimage = (width * height * fmt->depth) >> 3;
2444         } else {
2445                 f->bytesperline = (width * fmt->depth) >> 3;
2446                 f->sizeimage = height * f->bytesperline;
2447         }
2448 }
2449
2450 static int bttv_g_fmt_cap(struct file *file, void *priv,
2451                                         struct v4l2_format *f)
2452 {
2453         struct bttv_fh *fh  = priv;
2454
2455         pix_format_set_size(&f->fmt.pix, fh->fmt,
2456                                 fh->width, fh->height);
2457         f->fmt.pix.field        = fh->cap.field;
2458         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
2459
2460         return 0;
2461 }
2462
2463 static int bttv_g_fmt_overlay(struct file *file, void *priv,
2464                                         struct v4l2_format *f)
2465 {
2466         struct bttv_fh *fh  = priv;
2467
2468         f->fmt.win.w     = fh->ov.w;
2469         f->fmt.win.field = fh->ov.field;
2470
2471         return 0;
2472 }
2473
2474 static int bttv_try_fmt_cap(struct file *file, void *priv,
2475                                                 struct v4l2_format *f)
2476 {
2477         const struct bttv_format *fmt;
2478         struct bttv_fh *fh = priv;
2479         struct bttv *btv = fh->btv;
2480         enum v4l2_field field;
2481         __s32 width, height;
2482
2483         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2484         if (NULL == fmt)
2485                 return -EINVAL;
2486
2487         field = f->fmt.pix.field;
2488
2489         if (V4L2_FIELD_ANY == field) {
2490                 __s32 height2;
2491
2492                 height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
2493                 field = (f->fmt.pix.height > height2)
2494                         ? V4L2_FIELD_INTERLACED
2495                         : V4L2_FIELD_BOTTOM;
2496         }
2497
2498         if (V4L2_FIELD_SEQ_BT == field)
2499                 field = V4L2_FIELD_SEQ_TB;
2500
2501         switch (field) {
2502         case V4L2_FIELD_TOP:
2503         case V4L2_FIELD_BOTTOM:
2504         case V4L2_FIELD_ALTERNATE:
2505         case V4L2_FIELD_INTERLACED:
2506                 break;
2507         case V4L2_FIELD_SEQ_TB:
2508                 if (fmt->flags & FORMAT_FLAGS_PLANAR)
2509                         return -EINVAL;
2510                 break;
2511         default:
2512                 return -EINVAL;
2513         }
2514
2515         width = f->fmt.pix.width;
2516         height = f->fmt.pix.height;
2517
2518         /* update data for the application */
2519         f->fmt.pix.field = field;
2520         pix_format_set_size(&f->fmt.pix, fmt, width, height);
2521
2522         return 0;
2523 }
2524
2525 static int bttv_try_fmt_overlay(struct file *file, void *priv,
2526                                                 struct v4l2_format *f)
2527 {
2528         struct bttv_fh *fh = priv;
2529
2530         return verify_window(fh, &f->fmt.win,
2531                         /* adjust_size */ 1,
2532                         /* adjust_crop */ 0);
2533 }
2534
2535 static int bttv_s_fmt_cap(struct file *file, void *priv,
2536                                 struct v4l2_format *f)
2537 {
2538         int retval;
2539         const struct bttv_format *fmt;
2540         struct bttv_fh *fh = priv;
2541         struct bttv *btv = fh->btv;
2542
2543         retval = bttv_switch_type(fh, f->type);
2544         if (0 != retval)
2545                 return retval;
2546
2547         retval = bttv_try_fmt_cap(file, priv, f);
2548         if (0 != retval)
2549                 return retval;
2550
2551         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2552
2553         /* update our state informations */
2554         mutex_lock(&fh->cap.lock);
2555         fh->fmt              = fmt;
2556         fh->cap.field        = f->fmt.pix.field;
2557         fh->cap.last         = V4L2_FIELD_NONE;
2558         fh->width            = f->fmt.pix.width;
2559         fh->height           = f->fmt.pix.height;
2560         btv->init.fmt        = fmt;
2561         btv->init.width      = f->fmt.pix.width;
2562         btv->init.height     = f->fmt.pix.height;
2563         mutex_unlock(&fh->cap.lock);
2564
2565         return 0;
2566 }
2567
2568 static int bttv_s_fmt_overlay(struct file *file, void *priv,
2569                                 struct v4l2_format *f)
2570 {
2571         struct bttv_fh *fh = priv;
2572         struct bttv *btv = fh->btv;
2573
2574         if (no_overlay > 0)
2575                 return -EINVAL;
2576
2577         return setup_window(fh, btv, &f->fmt.win, 1);
2578 }
2579
2580 #ifdef CONFIG_VIDEO_V4L1_COMPAT
2581 static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
2582 {
2583         int retval;
2584         unsigned int i;
2585         struct bttv_fh *fh = priv;
2586
2587         mutex_lock(&fh->cap.lock);
2588         retval = videobuf_mmap_setup(&fh->cap, gbuffers, gbufsize,
2589                                      V4L2_MEMORY_MMAP);
2590         if (retval < 0) {
2591                 mutex_unlock(&fh->cap.lock);
2592                 return retval;
2593         }
2594
2595         gbuffers = retval;
2596         memset(mbuf, 0, sizeof(*mbuf));
2597         mbuf->frames = gbuffers;
2598         mbuf->size   = gbuffers * gbufsize;
2599
2600         for (i = 0; i < gbuffers; i++)
2601                 mbuf->offsets[i] = i * gbufsize;
2602
2603         mutex_unlock(&fh->cap.lock);
2604         return 0;
2605 }
2606 #endif
2607
2608 static int bttv_querycap(struct file *file, void  *priv,
2609                                 struct v4l2_capability *cap)
2610 {
2611         struct bttv_fh *fh = priv;
2612         struct bttv *btv = fh->btv;
2613
2614         if (0 == v4l2)
2615                 return -EINVAL;
2616
2617         strlcpy(cap->driver, "bttv", sizeof(cap->driver));
2618         strlcpy(cap->card, btv->video_dev->name, sizeof(cap->card));
2619         snprintf(cap->bus_info, sizeof(cap->bus_info),
2620                  "PCI:%s", pci_name(btv->c.pci));
2621         cap->version = BTTV_VERSION_CODE;
2622         cap->capabilities =
2623                 V4L2_CAP_VIDEO_CAPTURE |
2624                 V4L2_CAP_VBI_CAPTURE |
2625                 V4L2_CAP_READWRITE |
2626                 V4L2_CAP_STREAMING;
2627         if (no_overlay <= 0)
2628                 cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
2629
2630         if (bttv_tvcards[btv->c.type].tuner != UNSET &&
2631             bttv_tvcards[btv->c.type].tuner != TUNER_ABSENT)
2632                 cap->capabilities |= V4L2_CAP_TUNER;
2633         return 0;
2634 }
2635
2636 static int bttv_enum_fmt_vbi(struct file *file, void  *priv,
2637                                 struct v4l2_fmtdesc *f)
2638 {
2639         if (0 != f->index)
2640                 return -EINVAL;
2641
2642         f->pixelformat = V4L2_PIX_FMT_GREY;
2643         strcpy(f->description, "vbi data");
2644
2645         return 0;
2646 }
2647
2648 static int bttv_enum_fmt_cap(struct file *file, void  *priv,
2649                                 struct v4l2_fmtdesc *f)
2650 {
2651         if (f->index >= FORMATS)
2652                 return -EINVAL;
2653
2654         strlcpy(f->description, formats[f->index].name,
2655                 sizeof(f->description));
2656         f->pixelformat = formats[f->index].fourcc;
2657
2658         return 0;
2659 }
2660
2661 static int bttv_enum_fmt_overlay(struct file *file, void  *priv,
2662                                         struct v4l2_fmtdesc *f)
2663 {
2664         if (no_overlay > 0) {
2665                 printk(KERN_ERR "V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2666                 return -EINVAL;
2667         }
2668
2669         if (f->index >= FORMATS)
2670                 return -EINVAL;
2671
2672         strlcpy(f->description, formats[f->index].name,
2673                 sizeof(f->description));
2674
2675         f->pixelformat = formats[f->index].fourcc;
2676
2677         return 0;
2678 }
2679
2680 static int bttv_g_fbuf(struct file *file, void *f,
2681                                 struct v4l2_framebuffer *fb)
2682 {
2683         struct bttv_fh *fh = f;
2684         struct bttv *btv = fh->btv;
2685
2686         *fb = btv->fbuf;
2687         fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
2688         if (fh->ovfmt)
2689                 fb->fmt.pixelformat  = fh->ovfmt->fourcc;
2690         return 0;
2691 }
2692
2693 static int bttv_overlay(struct file *file, void *f, unsigned int on)
2694 {
2695         struct bttv_fh *fh = f;
2696         struct bttv *btv = fh->btv;
2697         struct bttv_buffer *new;
2698         int retval;
2699
2700         if (on) {
2701                 /* verify args */
2702                 if (NULL == btv->fbuf.base)
2703                         return -EINVAL;
2704                 if (!fh->ov.setup_ok) {
2705                         dprintk("bttv%d: overlay: !setup_ok\n", btv->c.nr);
2706                         return -EINVAL;
2707                 }
2708         }
2709
2710         if (!check_alloc_btres(btv, fh, RESOURCE_OVERLAY))
2711                 return -EBUSY;
2712
2713         mutex_lock(&fh->cap.lock);
2714         if (on) {
2715                 fh->ov.tvnorm = btv->tvnorm;
2716                 new = videobuf_pci_alloc(sizeof(*new));
2717                 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2718         } else {
2719                 new = NULL;
2720         }
2721
2722         /* switch over */
2723         retval = bttv_switch_overlay(btv, fh, new);
2724         mutex_unlock(&fh->cap.lock);
2725         return retval;
2726 }
2727
2728 static int bttv_s_fbuf(struct file *file, void *f,
2729                                 struct v4l2_framebuffer *fb)
2730 {
2731         struct bttv_fh *fh = f;
2732         struct bttv *btv = fh->btv;
2733         const struct bttv_format *fmt;
2734         int retval;
2735
2736         if (!capable(CAP_SYS_ADMIN) &&
2737                 !capable(CAP_SYS_RAWIO))
2738                 return -EPERM;
2739
2740         /* check args */
2741         fmt = format_by_fourcc(fb->fmt.pixelformat);
2742         if (NULL == fmt)
2743                 return -EINVAL;
2744         if (0 == (fmt->flags & FORMAT_FLAGS_PACKED))
2745                 return -EINVAL;
2746
2747         retval = -EINVAL;
2748         if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2749                 __s32 width = fb->fmt.width;
2750                 __s32 height = fb->fmt.height;
2751
2752                 retval = limit_scaled_size(fh, &width, &height,
2753                                            V4L2_FIELD_INTERLACED,
2754                                            /* width_mask */ ~3,
2755                                            /* width_bias */ 2,
2756                                            /* adjust_size */ 0,
2757                                            /* adjust_crop */ 0);
2758                 if (0 != retval)
2759                         return retval;
2760         }
2761
2762         /* ok, accept it */
2763         mutex_lock(&fh->cap.lock);
2764         btv->fbuf.base       = fb->base;
2765         btv->fbuf.fmt.width  = fb->fmt.width;
2766         btv->fbuf.fmt.height = fb->fmt.height;
2767         if (0 != fb->fmt.bytesperline)
2768                 btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline;
2769         else
2770                 btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8;
2771
2772         retval = 0;
2773         fh->ovfmt = fmt;
2774         btv->init.ovfmt = fmt;
2775         if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2776                 fh->ov.w.left   = 0;
2777                 fh->ov.w.top    = 0;
2778                 fh->ov.w.width  = fb->fmt.width;
2779                 fh->ov.w.height = fb->fmt.height;
2780                 btv->init.ov.w.width  = fb->fmt.width;
2781                 btv->init.ov.w.height = fb->fmt.height;
2782                         kfree(fh->ov.clips);
2783                 fh->ov.clips = NULL;
2784                 fh->ov.nclips = 0;
2785
2786                 if (check_btres(fh, RESOURCE_OVERLAY)) {
2787                         struct bttv_buffer *new;
2788
2789                         new = videobuf_pci_alloc(sizeof(*new));
2790                         new->crop = btv->crop[!!fh->do_crop].rect;
2791                         bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2792                         retval = bttv_switch_overlay(btv, fh, new);
2793                 }
2794         }
2795         mutex_unlock(&fh->cap.lock);
2796         return retval;
2797 }
2798
2799 static int bttv_reqbufs(struct file *file, void *priv,
2800                                 struct v4l2_requestbuffers *p)
2801 {
2802         struct bttv_fh *fh = priv;
2803         return videobuf_reqbufs(bttv_queue(fh), p);
2804 }
2805
2806 static int bttv_querybuf(struct file *file, void *priv,
2807                                 struct v4l2_buffer *b)
2808 {
2809         struct bttv_fh *fh = priv;
2810         return videobuf_querybuf(bttv_queue(fh), b);
2811 }
2812
2813 static int bttv_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2814 {
2815         struct bttv_fh *fh = priv;
2816         struct bttv *btv = fh->btv;
2817         int res = bttv_resource(fh);
2818
2819         if (!check_alloc_btres(btv, fh, res))
2820                 return -EBUSY;
2821
2822         return videobuf_qbuf(bttv_queue(fh), b);
2823 }
2824
2825 static int bttv_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2826 {
2827         struct bttv_fh *fh = priv;
2828         return videobuf_dqbuf(bttv_queue(fh), b,
2829                         file->f_flags & O_NONBLOCK);
2830 }
2831
2832 static int bttv_streamon(struct file *file, void *priv,
2833                                         enum v4l2_buf_type type)
2834 {
2835         struct bttv_fh *fh = priv;
2836         struct bttv *btv = fh->btv;
2837         int res = bttv_resource(fh);
2838
2839         if (!check_alloc_btres(btv, fh, res))
2840                 return -EBUSY;
2841         return videobuf_streamon(bttv_queue(fh));
2842 }
2843
2844
2845 static int bttv_streamoff(struct file *file, void *priv,
2846                                         enum v4l2_buf_type type)
2847 {
2848         struct bttv_fh *fh = priv;
2849         struct bttv *btv = fh->btv;
2850         int retval;
2851         int res = bttv_resource(fh);
2852
2853
2854         retval = videobuf_streamoff(bttv_queue(fh));
2855         if (retval < 0)
2856                 return retval;
2857         free_btres(btv, fh, res);
2858         return 0;
2859 }
2860
2861 static int bttv_queryctrl(struct file *file, void *priv,
2862                                         struct v4l2_queryctrl *c)
2863 {
2864         struct bttv_fh *fh = priv;
2865         struct bttv *btv = fh->btv;
2866         const struct v4l2_queryctrl *ctrl;
2867
2868         if ((c->id <  V4L2_CID_BASE ||
2869              c->id >= V4L2_CID_LASTP1) &&
2870             (c->id <  V4L2_CID_PRIVATE_BASE ||
2871              c->id >= V4L2_CID_PRIVATE_LASTP1))
2872                 return -EINVAL;
2873
2874         ctrl = ctrl_by_id(c->id);
2875         *c = (NULL != ctrl) ? *ctrl : no_ctl;
2876
2877         if (!btv->volume_gpio &&
2878             (ctrl->id == V4L2_CID_AUDIO_VOLUME))
2879                 * c = no_ctl;
2880
2881         return 0;
2882 }
2883
2884 static int bttv_g_parm(struct file *file, void *f,
2885                                 struct v4l2_streamparm *parm)
2886 {
2887         struct bttv_fh *fh = f;
2888         struct bttv *btv = fh->btv;
2889         struct v4l2_standard s;
2890
2891         if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
2892                 return -EINVAL;
2893         v4l2_video_std_construct(&s, bttv_tvnorms[btv->tvnorm].v4l2_id,
2894                                  bttv_tvnorms[btv->tvnorm].name);
2895         parm->parm.capture.timeperframe = s.frameperiod;
2896         return 0;
2897 }
2898
2899 static int bttv_g_tuner(struct file *file, void *priv,
2900                                 struct v4l2_tuner *t)
2901 {
2902         struct bttv_fh *fh = priv;
2903         struct bttv *btv = fh->btv;
2904
2905         if (UNSET == bttv_tvcards[btv->c.type].tuner)
2906                 return -EINVAL;
2907         if (0 != t->index)
2908                 return -EINVAL;
2909
2910         mutex_lock(&btv->lock);
2911         memset(t, 0, sizeof(*t));
2912         t->rxsubchans = V4L2_TUNER_SUB_MONO;
2913         bttv_call_i2c_clients(btv, VIDIOC_G_TUNER, t);
2914         strcpy(t->name, "Television");
2915         t->capability = V4L2_TUNER_CAP_NORM;
2916         t->type       = V4L2_TUNER_ANALOG_TV;
2917         if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC)
2918                 t->signal = 0xffff;
2919
2920         if (btv->audio_mode_gpio)
2921                 btv->audio_mode_gpio(btv, t, 0);
2922
2923         mutex_unlock(&btv->lock);
2924         return 0;
2925 }
2926
2927 static int bttv_g_priority(struct file *file, void *f, enum v4l2_priority *p)
2928 {
2929         struct bttv_fh *fh = f;
2930         struct bttv *btv = fh->btv;
2931
2932         *p = v4l2_prio_max(&btv->prio);
2933
2934         return 0;
2935 }
2936
2937 static int bttv_s_priority(struct file *file, void *f,
2938                                         enum v4l2_priority prio)
2939 {
2940         struct bttv_fh *fh = f;
2941         struct bttv *btv = fh->btv;
2942
2943         return v4l2_prio_change(&btv->prio, &fh->prio, prio);
2944 }
2945
2946 static int bttv_cropcap(struct file *file, void *priv,
2947                                 struct v4l2_cropcap *cap)
2948 {
2949         struct bttv_fh *fh = priv;
2950         struct bttv *btv = fh->btv;
2951
2952         if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2953             cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2954                 return -EINVAL;
2955
2956         *cap = bttv_tvnorms[btv->tvnorm].cropcap;
2957
2958         return 0;
2959 }
2960
2961 static int bttv_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
2962 {
2963         struct bttv_fh *fh = f;
2964         struct bttv *btv = fh->btv;
2965
2966         if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2967             crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2968                 return -EINVAL;
2969
2970         /* No fh->do_crop = 1; because btv->crop[1] may be
2971            inconsistent with fh->width or fh->height and apps
2972            do not expect a change here. */
2973
2974         crop->c = btv->crop[!!fh->do_crop].rect;
2975
2976         return 0;
2977 }
2978
2979 static int bttv_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
2980 {
2981         struct bttv_fh *fh = f;
2982         struct bttv *btv = fh->btv;
2983         const struct v4l2_rect *b;
2984         int retval;
2985         struct bttv_crop c;
2986         __s32 b_left;
2987         __s32 b_top;
2988         __s32 b_right;
2989         __s32 b_bottom;
2990
2991         if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2992             crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2993                 return -EINVAL;
2994
2995         retval = v4l2_prio_check(&btv->prio, &fh->prio);
2996         if (0 != retval)
2997                 return retval;
2998
2999         /* Make sure tvnorm, vbi_end and the current cropping
3000            parameters remain consistent until we're done. Note
3001            read() may change vbi_end in check_alloc_btres(). */
3002         mutex_lock(&btv->lock);
3003
3004         retval = -EBUSY;
3005
3006         if (locked_btres(fh->btv, VIDEO_RESOURCES)) {
3007                 mutex_unlock(&btv->lock);
3008                 return retval;
3009         }
3010
3011         b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
3012
3013         b_left = b->left;
3014         b_right = b_left + b->width;
3015         b_bottom = b->top + b->height;
3016
3017         b_top = max(b->top, btv->vbi_end);
3018         if (b_top + 32 >= b_bottom) {
3019                 mutex_unlock(&btv->lock);
3020                 return retval;
3021         }
3022
3023         /* Min. scaled size 48 x 32. */
3024         c.rect.left = clamp(crop->c.left, b_left, b_right - 48);
3025         c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY);
3026
3027         c.rect.width = clamp(crop->c.width,
3028                              48, b_right - c.rect.left);
3029
3030         c.rect.top = clamp(crop->c.top, b_top, b_bottom - 32);
3031         /* Top and height must be a multiple of two. */
3032         c.rect.top = (c.rect.top + 1) & ~1;
3033
3034         c.rect.height = clamp(crop->c.height,
3035                               32, b_bottom - c.rect.top);
3036         c.rect.height = (c.rect.height + 1) & ~1;
3037
3038         bttv_crop_calc_limits(&c);
3039
3040         btv->crop[1] = c;
3041
3042         mutex_unlock(&btv->lock);
3043
3044         fh->do_crop = 1;
3045
3046         mutex_lock(&fh->cap.lock);
3047
3048         if (fh->width < c.min_scaled_width) {
3049                 fh->width = c.min_scaled_width;
3050                 btv->init.width = c.min_scaled_width;
3051         } else if (fh->width > c.max_scaled_width) {
3052                 fh->width = c.max_scaled_width;
3053                 btv->init.width = c.max_scaled_width;
3054         }
3055
3056         if (fh->height < c.min_scaled_height) {
3057                 fh->height = c.min_scaled_height;
3058                 btv->init.height = c.min_scaled_height;
3059         } else if (fh->height > c.max_scaled_height) {
3060                 fh->height = c.max_scaled_height;
3061                 btv->init.height = c.max_scaled_height;
3062         }
3063
3064         mutex_unlock(&fh->cap.lock);
3065
3066         return 0;
3067 }
3068
3069 static int bttv_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
3070 {
3071         strcpy(a->name, "audio");
3072         return 0;
3073 }
3074
3075 static int bttv_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
3076 {
3077         return 0;
3078 }
3079
3080 static ssize_t bttv_read(struct file *file, char __user *data,
3081                          size_t count, loff_t *ppos)
3082 {
3083         struct bttv_fh *fh = file->private_data;
3084         int retval = 0;
3085
3086         if (fh->btv->errors)
3087                 bttv_reinit_bt848(fh->btv);
3088         dprintk("bttv%d: read count=%d type=%s\n",
3089                 fh->btv->c.nr,(int)count,v4l2_type_names[fh->type]);
3090
3091         switch (fh->type) {
3092         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
3093                 if (!check_alloc_btres(fh->btv, fh, RESOURCE_VIDEO_READ)) {
3094                         /* VIDEO_READ in use by another fh,
3095                            or VIDEO_STREAM by any fh. */
3096                         return -EBUSY;
3097                 }
3098                 retval = videobuf_read_one(&fh->cap, data, count, ppos,
3099                                            file->f_flags & O_NONBLOCK);
3100                 free_btres(fh->btv, fh, RESOURCE_VIDEO_READ);
3101                 break;
3102         case V4L2_BUF_TYPE_VBI_CAPTURE:
3103                 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
3104                         return -EBUSY;
3105                 retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1,
3106                                               file->f_flags & O_NONBLOCK);
3107                 break;
3108         default:
3109                 BUG();
3110         }
3111         return retval;
3112 }
3113
3114 static unsigned int bttv_poll(struct file *file, poll_table *wait)
3115 {
3116         struct bttv_fh *fh = file->private_data;
3117         struct bttv_buffer *buf;
3118         enum v4l2_field field;
3119
3120         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
3121                 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
3122                         return POLLERR;
3123                 return videobuf_poll_stream(file, &fh->vbi, wait);
3124         }
3125
3126         if (check_btres(fh,RESOURCE_VIDEO_STREAM)) {
3127                 /* streaming capture */
3128                 if (list_empty(&fh->cap.stream))
3129                         return POLLERR;
3130                 buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
3131         } else {
3132                 /* read() capture */
3133                 mutex_lock(&fh->cap.lock);
3134                 if (NULL == fh->cap.read_buf) {
3135                         /* need to capture a new frame */
3136                         if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM)) {
3137                                 mutex_unlock(&fh->cap.lock);
3138                                 return POLLERR;
3139                         }
3140                         fh->cap.read_buf = videobuf_pci_alloc(fh->cap.msize);
3141                         if (NULL == fh->cap.read_buf) {
3142                                 mutex_unlock(&fh->cap.lock);
3143                                 return POLLERR;
3144                         }
3145                         fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR;
3146                         field = videobuf_next_field(&fh->cap);
3147                         if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) {
3148                                 kfree (fh->cap.read_buf);
3149                                 fh->cap.read_buf = NULL;
3150                                 mutex_unlock(&fh->cap.lock);
3151                                 return POLLERR;
3152                         }
3153                         fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
3154                         fh->cap.read_off = 0;
3155                 }
3156                 mutex_unlock(&fh->cap.lock);
3157                 buf = (struct bttv_buffer*)fh->cap.read_buf;
3158         }
3159
3160         poll_wait(file, &buf->vb.done, wait);
3161         if (buf->vb.state == VIDEOBUF_DONE ||
3162             buf->vb.state == VIDEOBUF_ERROR)
3163                 return POLLIN|POLLRDNORM;
3164         return 0;
3165 }
3166
3167 static int bttv_open(struct inode *inode, struct file *file)
3168 {
3169         int minor = iminor(inode);
3170         struct bttv *btv = NULL;
3171         struct bttv_fh *fh;
3172         enum v4l2_buf_type type = 0;
3173         unsigned int i;
3174
3175         dprintk(KERN_DEBUG "bttv: open minor=%d\n",minor);
3176
3177         for (i = 0; i < bttv_num; i++) {
3178                 if (bttvs[i].video_dev &&
3179                     bttvs[i].video_dev->minor == minor) {
3180                         btv = &bttvs[i];
3181                         type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3182                         break;
3183                 }
3184                 if (bttvs[i].vbi_dev &&
3185                     bttvs[i].vbi_dev->minor == minor) {
3186                         btv = &bttvs[i];
3187                         type = V4L2_BUF_TYPE_VBI_CAPTURE;
3188                         break;
3189                 }
3190         }
3191         if (NULL == btv)
3192                 return -ENODEV;
3193
3194         dprintk(KERN_DEBUG "bttv%d: open called (type=%s)\n",
3195                 btv->c.nr,v4l2_type_names[type]);
3196
3197         /* allocate per filehandle data */
3198         fh = kmalloc(sizeof(*fh),GFP_KERNEL);
3199         if (NULL == fh)
3200                 return -ENOMEM;
3201         file->private_data = fh;
3202         *fh = btv->init;
3203         fh->type = type;
3204         fh->ov.setup_ok = 0;
3205         v4l2_prio_open(&btv->prio,&fh->prio);
3206
3207         videobuf_queue_pci_init(&fh->cap, &bttv_video_qops,
3208                             btv->c.pci, &btv->s_lock,
3209                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
3210                             V4L2_FIELD_INTERLACED,
3211                             sizeof(struct bttv_buffer),
3212                             fh);
3213         videobuf_queue_pci_init(&fh->vbi, &bttv_vbi_qops,
3214                             btv->c.pci, &btv->s_lock,
3215                             V4L2_BUF_TYPE_VBI_CAPTURE,
3216                             V4L2_FIELD_SEQ_TB,
3217                             sizeof(struct bttv_buffer),
3218                             fh);
3219         set_tvnorm(btv,btv->tvnorm);
3220
3221         btv->users++;
3222
3223         /* The V4L2 spec requires one global set of cropping parameters
3224            which only change on request. These are stored in btv->crop[1].
3225            However for compatibility with V4L apps and cropping unaware
3226            V4L2 apps we now reset the cropping parameters as seen through
3227            this fh, which is to say VIDIOC_G_CROP and scaling limit checks
3228            will use btv->crop[0], the default cropping parameters for the
3229            current video standard, and VIDIOC_S_FMT will not implicitely
3230            change the cropping parameters until VIDIOC_S_CROP has been
3231            called. */
3232         fh->do_crop = !reset_crop; /* module parameter */
3233
3234         /* Likewise there should be one global set of VBI capture
3235            parameters, but for compatibility with V4L apps and earlier
3236            driver versions each fh has its own parameters. */
3237         bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm);
3238
3239         bttv_field_count(btv);
3240         return 0;
3241 }
3242
3243 static int bttv_release(struct inode *inode, struct file *file)
3244 {
3245         struct bttv_fh *fh = file->private_data;
3246         struct bttv *btv = fh->btv;
3247
3248         /* turn off overlay */
3249         if (check_btres(fh, RESOURCE_OVERLAY))
3250                 bttv_switch_overlay(btv,fh,NULL);
3251
3252         /* stop video capture */
3253         if (check_btres(fh, RESOURCE_VIDEO_STREAM)) {
3254                 videobuf_streamoff(&fh->cap);
3255                 free_btres(btv,fh,RESOURCE_VIDEO_STREAM);
3256         }
3257         if (fh->cap.read_buf) {
3258                 buffer_release(&fh->cap,fh->cap.read_buf);
3259                 kfree(fh->cap.read_buf);
3260         }
3261         if (check_btres(fh, RESOURCE_VIDEO_READ)) {
3262                 free_btres(btv, fh, RESOURCE_VIDEO_READ);
3263         }
3264
3265         /* stop vbi capture */
3266         if (check_btres(fh, RESOURCE_VBI)) {
3267                 videobuf_stop(&fh->vbi);
3268                 free_btres(btv,fh,RESOURCE_VBI);
3269         }
3270
3271         /* free stuff */
3272         videobuf_mmap_free(&fh->cap);
3273         videobuf_mmap_free(&fh->vbi);
3274         v4l2_prio_close(&btv->prio,&fh->prio);
3275         file->private_data = NULL;
3276         kfree(fh);
3277
3278         btv->users--;
3279         bttv_field_count(btv);
3280         return 0;
3281 }
3282
3283 static int
3284 bttv_mmap(struct file *file, struct vm_area_struct *vma)
3285 {
3286         struct bttv_fh *fh = file->private_data;
3287
3288         dprintk("bttv%d: mmap type=%s 0x%lx+%ld\n",
3289                 fh->btv->c.nr, v4l2_type_names[fh->type],
3290                 vma->vm_start, vma->vm_end - vma->vm_start);
3291         return videobuf_mmap_mapper(bttv_queue(fh),vma);
3292 }
3293
3294 static const struct file_operations bttv_fops =
3295 {
3296         .owner    = THIS_MODULE,
3297         .open     = bttv_open,
3298         .release  = bttv_release,
3299         .ioctl    = video_ioctl2,
3300         .compat_ioctl   = v4l_compat_ioctl32,
3301         .llseek   = no_llseek,
3302         .read     = bttv_read,
3303         .mmap     = bttv_mmap,
3304         .poll     = bttv_poll,
3305 };
3306
3307 static struct video_device bttv_video_template =
3308 {
3309         .name     = "UNSET",
3310         .type     = VID_TYPE_CAPTURE|VID_TYPE_TUNER|
3311                     VID_TYPE_CLIPPING|VID_TYPE_SCALES,
3312         .fops     = &bttv_fops,
3313         .minor    = -1,
3314         .vidioc_querycap                = bttv_querycap,
3315         .vidioc_enum_fmt_cap            = bttv_enum_fmt_cap,
3316         .vidioc_g_fmt_cap               = bttv_g_fmt_cap,
3317         .vidioc_try_fmt_cap             = bttv_try_fmt_cap,
3318         .vidioc_s_fmt_cap               = bttv_s_fmt_cap,
3319         .vidioc_enum_fmt_overlay        = bttv_enum_fmt_overlay,
3320         .vidioc_g_fmt_overlay           = bttv_g_fmt_overlay,
3321         .vidioc_try_fmt_overlay         = bttv_try_fmt_overlay,
3322         .vidioc_s_fmt_overlay           = bttv_s_fmt_overlay,
3323         .vidioc_enum_fmt_vbi            = bttv_enum_fmt_vbi,
3324         .vidioc_g_fmt_vbi               = bttv_g_fmt_vbi,
3325         .vidioc_try_fmt_vbi             = bttv_try_fmt_vbi,
3326         .vidioc_s_fmt_vbi               = bttv_s_fmt_vbi,
3327         .vidioc_g_audio                 = bttv_g_audio,
3328         .vidioc_s_audio                 = bttv_s_audio,
3329         .vidioc_cropcap                 = bttv_cropcap,
3330         .vidioc_reqbufs                 = bttv_reqbufs,
3331         .vidioc_querybuf                = bttv_querybuf,
3332         .vidioc_qbuf                    = bttv_qbuf,
3333         .vidioc_dqbuf                   = bttv_dqbuf,
3334         .vidioc_s_std                   = bttv_s_std,
3335         .vidioc_enum_input              = bttv_enum_input,
3336         .vidioc_g_input                 = bttv_g_input,
3337         .vidioc_s_input                 = bttv_s_input,
3338         .vidioc_queryctrl               = bttv_queryctrl,
3339         .vidioc_g_ctrl                  = bttv_g_ctrl,
3340         .vidioc_s_ctrl                  = bttv_s_ctrl,
3341         .vidioc_streamon                = bttv_streamon,
3342         .vidioc_streamoff               = bttv_streamoff,
3343         .vidioc_g_tuner                 = bttv_g_tuner,
3344         .vidioc_s_tuner                 = bttv_s_tuner,
3345 #ifdef CONFIG_VIDEO_V4L1_COMPAT
3346         .vidiocgmbuf                    = vidiocgmbuf,
3347 #endif
3348         .vidioc_g_crop                  = bttv_g_crop,
3349         .vidioc_g_crop                  = bttv_g_crop,
3350         .vidioc_s_crop                  = bttv_s_crop,
3351         .vidioc_g_fbuf                  = bttv_g_fbuf,
3352         .vidioc_s_fbuf                  = bttv_s_fbuf,
3353         .vidioc_overlay                 = bttv_overlay,
3354         .vidioc_g_priority              = bttv_g_priority,
3355         .vidioc_s_priority              = bttv_s_priority,
3356         .vidioc_g_parm                  = bttv_g_parm,
3357         .vidioc_g_frequency             = bttv_g_frequency,
3358         .vidioc_s_frequency             = bttv_s_frequency,
3359         .vidioc_log_status              = bttv_log_status,
3360         .vidioc_querystd                = bttv_querystd,
3361         .vidioc_g_register              = bttv_g_register,
3362         .vidioc_s_register              = bttv_s_register,
3363         .tvnorms                        = BTTV_NORMS,
3364         .current_norm                   = V4L2_STD_PAL,
3365 };
3366
3367 static struct video_device bttv_vbi_template =
3368 {
3369         .name     = "bt848/878 vbi",
3370         .type     = VID_TYPE_TUNER|VID_TYPE_TELETEXT,
3371         .fops     = &bttv_fops,
3372         .minor    = -1,
3373 };
3374
3375 /* ----------------------------------------------------------------------- */
3376 /* radio interface                                                         */
3377
3378 static int radio_open(struct inode *inode, struct file *file)
3379 {
3380         int minor = iminor(inode);
3381         struct bttv *btv = NULL;
3382         unsigned int i;
3383
3384         dprintk("bttv: open minor=%d\n",minor);
3385
3386         for (i = 0; i < bttv_num; i++) {
3387                 if (bttvs[i].radio_dev->minor == minor) {
3388                         btv = &bttvs[i];
3389                         break;
3390                 }
3391         }
3392         if (NULL == btv)
3393                 return -ENODEV;
3394
3395         dprintk("bttv%d: open called (radio)\n",btv->c.nr);
3396         mutex_lock(&btv->lock);
3397
3398         btv->radio_user++;
3399
3400         file->private_data = btv;
3401
3402         bttv_call_i2c_clients(btv,AUDC_SET_RADIO,NULL);
3403         audio_input(btv,TVAUDIO_INPUT_RADIO);
3404
3405         mutex_unlock(&btv->lock);
3406         return 0;
3407 }
3408
3409 static int radio_release(struct inode *inode, struct file *file)
3410 {
3411         struct bttv *btv = file->private_data;
3412         struct rds_command cmd;
3413
3414         btv->radio_user--;
3415
3416         bttv_call_i2c_clients(btv, RDS_CMD_CLOSE, &cmd);
3417
3418         return 0;
3419 }
3420
3421 static int radio_querycap(struct file *file, void *priv,
3422                                         struct v4l2_capability *cap)
3423 {
3424         struct bttv_fh *fh = priv;
3425         struct bttv *btv = fh->btv;
3426
3427         strcpy(cap->driver, "bttv");
3428         strlcpy(cap->card, btv->radio_dev->name, sizeof(cap->card));
3429         sprintf(cap->bus_info, "PCI:%s", pci_name(btv->c.pci));
3430         cap->version = BTTV_VERSION_CODE;
3431         cap->capabilities = V4L2_CAP_TUNER;
3432
3433         return 0;
3434 }
3435
3436 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
3437 {
3438         struct bttv_fh *fh = priv;
3439         struct bttv *btv = fh->btv;
3440
3441         if (UNSET == bttv_tvcards[btv->c.type].tuner)
3442                 return -EINVAL;
3443         if (0 != t->index)
3444                 return -EINVAL;
3445         mutex_lock(&btv->lock);
3446         memset(t, 0, sizeof(*t));
3447         strcpy(t->name, "Radio");
3448         t->type = V4L2_TUNER_RADIO;
3449
3450         bttv_call_i2c_clients(btv, VIDIOC_G_TUNER, t);
3451
3452         if (btv->audio_mode_gpio)
3453                 btv->audio_mode_gpio(btv, t, 0);
3454
3455         mutex_unlock(&btv->lock);
3456
3457         return 0;
3458 }
3459
3460 static int radio_enum_input(struct file *file, void *priv,
3461                                 struct v4l2_input *i)
3462 {
3463         if (i->index != 0)
3464                 return -EINVAL;
3465
3466         strcpy(i->name, "Radio");
3467          i->type = V4L2_INPUT_TYPE_TUNER;
3468
3469         return 0;
3470 }
3471
3472 static int radio_g_audio(struct file *file, void *priv,
3473                                         struct v4l2_audio *a)
3474 {
3475         memset(a, 0, sizeof(*a));
3476         strcpy(a->name, "Radio");
3477         return 0;
3478 }
3479
3480 static int radio_s_tuner(struct file *file, void *priv,
3481                                         struct v4l2_tuner *t)
3482 {
3483         struct bttv_fh *fh = priv;
3484         struct bttv *btv = fh->btv;
3485
3486         if (0 != t->index)
3487                 return -EINVAL;
3488
3489         bttv_call_i2c_clients(btv, VIDIOC_G_TUNER, t);
3490         return 0;
3491 }
3492
3493 static int radio_s_audio(struct file *file, void *priv,
3494                                         struct v4l2_audio *a)
3495 {
3496         return 0;
3497 }
3498
3499 static int radio_s_input(struct file *filp, void *priv, unsigned int i)
3500 {
3501         return 0;
3502 }
3503
3504 static int radio_s_std(struct file *file, void *fh, v4l2_std_id *norm)
3505 {
3506         return 0;
3507 }
3508
3509 static int radio_queryctrl(struct file *file, void *priv,
3510                                         struct v4l2_queryctrl *c)
3511 {
3512         const struct v4l2_queryctrl *ctrl;
3513
3514         if (c->id <  V4L2_CID_BASE ||
3515                         c->id >= V4L2_CID_LASTP1)
3516                 return -EINVAL;
3517
3518         if (c->id == V4L2_CID_AUDIO_MUTE) {
3519                 ctrl = ctrl_by_id(c->id);
3520                 *c = *ctrl;
3521         } else
3522                 *c = no_ctl;
3523
3524         return 0;
3525 }
3526
3527 static int radio_g_input(struct file *filp, void *priv, unsigned int *i)
3528 {
3529         *i = 0;
3530         return 0;
3531 }
3532
3533 static ssize_t radio_read(struct file *file, char __user *data,
3534                          size_t count, loff_t *ppos)
3535 {
3536         struct bttv    *btv = file->private_data;
3537         struct rds_command cmd;
3538         cmd.block_count = count/3;
3539         cmd.buffer = data;
3540         cmd.instance = file;
3541         cmd.result = -ENODEV;
3542
3543         bttv_call_i2c_clients(btv, RDS_CMD_READ, &cmd);
3544
3545         return cmd.result;
3546 }
3547
3548 static unsigned int radio_poll(struct file *file, poll_table *wait)
3549 {
3550         struct bttv    *btv = file->private_data;
3551         struct rds_command cmd;
3552         cmd.instance = file;
3553         cmd.event_list = wait;
3554         cmd.result = -ENODEV;
3555         bttv_call_i2c_clients(btv, RDS_CMD_POLL, &cmd);
3556
3557         return cmd.result;
3558 }
3559
3560 static const struct file_operations radio_fops =
3561 {
3562         .owner    = THIS_MODULE,
3563         .open     = radio_open,
3564         .read     = radio_read,
3565         .release  = radio_release,
3566         .ioctl    = video_ioctl2,
3567         .llseek   = no_llseek,
3568         .poll     = radio_poll,
3569 };
3570
3571 static struct video_device radio_template =
3572 {
3573         .name     = "bt848/878 radio",
3574         .type     = VID_TYPE_TUNER,
3575         .fops     = &radio_fops,
3576         .minor    = -1,
3577         .vidioc_querycap        = radio_querycap,
3578         .vidioc_g_tuner         = radio_g_tuner,
3579         .vidioc_enum_input      = radio_enum_input,
3580         .vidioc_g_audio         = radio_g_audio,
3581         .vidioc_s_tuner         = radio_s_tuner,
3582         .vidioc_s_audio         = radio_s_audio,
3583         .vidioc_s_input         = radio_s_input,
3584         .vidioc_s_std           = radio_s_std,
3585         .vidioc_queryctrl       = radio_queryctrl,
3586         .vidioc_g_input         = radio_g_input,
3587         .vidioc_g_ctrl          = bttv_g_ctrl,
3588         .vidioc_s_ctrl          = bttv_s_ctrl,
3589         .vidioc_g_frequency     = bttv_g_frequency,
3590         .vidioc_s_frequency     = bttv_s_frequency,
3591 };
3592
3593 /* ----------------------------------------------------------------------- */
3594 /* some debug code                                                         */
3595
3596 static int bttv_risc_decode(u32 risc)
3597 {
3598         static char *instr[16] = {
3599                 [ BT848_RISC_WRITE     >> 28 ] = "write",
3600                 [ BT848_RISC_SKIP      >> 28 ] = "skip",
3601                 [ BT848_RISC_WRITEC    >> 28 ] = "writec",
3602                 [ BT848_RISC_JUMP      >> 28 ] = "jump",
3603                 [ BT848_RISC_SYNC      >> 28 ] = "sync",
3604                 [ BT848_RISC_WRITE123  >> 28 ] = "write123",
3605                 [ BT848_RISC_SKIP123   >> 28 ] = "skip123",
3606                 [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23",
3607         };
3608         static int incr[16] = {
3609                 [ BT848_RISC_WRITE     >> 28 ] = 2,
3610                 [ BT848_RISC_JUMP      >> 28 ] = 2,
3611                 [ BT848_RISC_SYNC      >> 28 ] = 2,
3612                 [ BT848_RISC_WRITE123  >> 28 ] = 5,
3613                 [ BT848_RISC_SKIP123   >> 28 ] = 2,
3614                 [ BT848_RISC_WRITE1S23 >> 28 ] = 3,
3615         };
3616         static char *bits[] = {
3617                 "be0",  "be1",  "be2",  "be3/resync",
3618                 "set0", "set1", "set2", "set3",
3619                 "clr0", "clr1", "clr2", "clr3",
3620                 "irq",  "res",  "eol",  "sol",
3621         };
3622         int i;
3623
3624         printk("0x%08x [ %s", risc,
3625                instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
3626         for (i = ARRAY_SIZE(bits)-1; i >= 0; i--)
3627                 if (risc & (1 << (i + 12)))
3628                         printk(" %s",bits[i]);
3629         printk(" count=%d ]\n", risc & 0xfff);
3630         return incr[risc >> 28] ? incr[risc >> 28] : 1;
3631 }
3632
3633 static void bttv_risc_disasm(struct bttv *btv,
3634                              struct btcx_riscmem *risc)
3635 {
3636         unsigned int i,j,n;
3637
3638         printk("%s: risc disasm: %p [dma=0x%08lx]\n",
3639                btv->c.name, risc->cpu, (unsigned long)risc->dma);
3640         for (i = 0; i < (risc->size >> 2); i += n) {
3641                 printk("%s:   0x%lx: ", btv->c.name,
3642                        (unsigned long)(risc->dma + (i<<2)));
3643                 n = bttv_risc_decode(risc->cpu[i]);
3644                 for (j = 1; j < n; j++)
3645                         printk("%s:   0x%lx: 0x%08x [ arg #%d ]\n",
3646                                btv->c.name, (unsigned long)(risc->dma + ((i+j)<<2)),
3647                                risc->cpu[i+j], j);
3648                 if (0 == risc->cpu[i])
3649                         break;
3650         }
3651 }
3652
3653 static void bttv_print_riscaddr(struct bttv *btv)
3654 {
3655         printk("  main: %08Lx\n",
3656                (unsigned long long)btv->main.dma);
3657         printk("  vbi : o=%08Lx e=%08Lx\n",
3658                btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0,
3659                btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0);
3660         printk("  cap : o=%08Lx e=%08Lx\n",
3661                btv->curr.top    ? (unsigned long long)btv->curr.top->top.dma : 0,
3662                btv->curr.bottom ? (unsigned long long)btv->curr.bottom->bottom.dma : 0);
3663         printk("  scr : o=%08Lx e=%08Lx\n",
3664                btv->screen ? (unsigned long long)btv->screen->top.dma : 0,
3665                btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0);
3666         bttv_risc_disasm(btv, &btv->main);
3667 }
3668
3669 /* ----------------------------------------------------------------------- */
3670 /* irq handler                                                             */
3671
3672 static char *irq_name[] = {
3673         "FMTCHG",  // format change detected (525 vs. 625)
3674         "VSYNC",   // vertical sync (new field)
3675         "HSYNC",   // horizontal sync
3676         "OFLOW",   // chroma/luma AGC overflow
3677         "HLOCK",   // horizontal lock changed
3678         "VPRES",   // video presence changed
3679         "6", "7",
3680         "I2CDONE", // hw irc operation finished
3681         "GPINT",   // gpio port triggered irq
3682         "10",
3683         "RISCI",   // risc instruction triggered irq
3684         "FBUS",    // pixel data fifo dropped data (high pci bus latencies)
3685         "FTRGT",   // pixel data fifo overrun
3686         "FDSR",    // fifo data stream resyncronisation
3687         "PPERR",   // parity error (data transfer)
3688         "RIPERR",  // parity error (read risc instructions)
3689         "PABORT",  // pci abort
3690         "OCERR",   // risc instruction error
3691         "SCERR",   // syncronisation error
3692 };
3693
3694 static void bttv_print_irqbits(u32 print, u32 mark)
3695 {
3696         unsigned int i;
3697
3698         printk("bits:");
3699         for (i = 0; i < ARRAY_SIZE(irq_name); i++) {
3700                 if (print & (1 << i))
3701                         printk(" %s",irq_name[i]);
3702                 if (mark & (1 << i))
3703                         printk("*");
3704         }
3705 }
3706
3707 static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc)
3708 {
3709         printk("bttv%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n",
3710                btv->c.nr,
3711                (unsigned long)btv->main.dma,
3712                (unsigned long)btv->main.cpu[RISC_SLOT_O_VBI+1],
3713                (unsigned long)btv->main.cpu[RISC_SLOT_O_FIELD+1],
3714                (unsigned long)rc);
3715
3716         if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) {
3717                 printk("bttv%d: Oh, there (temporarely?) is no input signal. "
3718                        "Ok, then this is harmless, don't worry ;)\n",
3719                        btv->c.nr);
3720                 return;
3721         }
3722         printk("bttv%d: Uhm. Looks like we have unusual high IRQ latencies.\n",
3723                btv->c.nr);
3724         printk("bttv%d: Lets try to catch the culpit red-handed ...\n",
3725                btv->c.nr);
3726         dump_stack();
3727 }
3728
3729 static int
3730 bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set)
3731 {
3732         struct bttv_buffer *item;
3733
3734         memset(set,0,sizeof(*set));
3735
3736         /* capture request ? */
3737         if (!list_empty(&btv->capture)) {
3738                 set->frame_irq = 1;
3739                 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3740                 if (V4L2_FIELD_HAS_TOP(item->vb.field))
3741                         set->top    = item;
3742                 if (V4L2_FIELD_HAS_BOTTOM(item->vb.field))
3743                         set->bottom = item;
3744
3745                 /* capture request for other field ? */
3746                 if (!V4L2_FIELD_HAS_BOTH(item->vb.field) &&
3747                     (item->vb.queue.next != &btv->capture)) {
3748                         item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue);
3749                         if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) {
3750                                 if (NULL == set->top &&
3751                                     V4L2_FIELD_TOP == item->vb.field) {
3752                                         set->top = item;
3753                                 }
3754                                 if (NULL == set->bottom &&
3755                                     V4L2_FIELD_BOTTOM == item->vb.field) {
3756                                         set->bottom = item;
3757                                 }
3758                                 if (NULL != set->top  &&  NULL != set->bottom)
3759                                         set->top_irq = 2;
3760                         }
3761                 }
3762         }
3763
3764         /* screen overlay ? */
3765         if (NULL != btv->screen) {
3766                 if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) {
3767                         if (NULL == set->top && NULL == set->bottom) {
3768                                 set->top    = btv->screen;
3769                                 set->bottom = btv->screen;
3770                         }
3771                 } else {
3772                         if (V4L2_FIELD_TOP == btv->screen->vb.field &&
3773                             NULL == set->top) {
3774                                 set->top = btv->screen;
3775                         }
3776                         if (V4L2_FIELD_BOTTOM == btv->screen->vb.field &&
3777                             NULL == set->bottom) {
3778                                 set->bottom = btv->screen;
3779                         }
3780                 }
3781         }
3782
3783         dprintk("bttv%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n",
3784                 btv->c.nr,set->top, set->bottom,
3785                 btv->screen,set->frame_irq,set->top_irq);
3786         return 0;
3787 }
3788
3789 static void
3790 bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup,
3791                       struct bttv_buffer_set *curr, unsigned int state)
3792 {
3793         struct timeval ts;
3794
3795         do_gettimeofday(&ts);
3796
3797         if (wakeup->top == wakeup->bottom) {
3798                 if (NULL != wakeup->top && curr->top != wakeup->top) {
3799                         if (irq_debug > 1)
3800                                 printk("bttv%d: wakeup: both=%p\n",btv->c.nr,wakeup->top);
3801                         wakeup->top->vb.ts = ts;
3802                         wakeup->top->vb.field_count = btv->field_count;
3803                         wakeup->top->vb.state = state;
3804                         wake_up(&wakeup->top->vb.done);
3805                 }
3806         } else {
3807                 if (NULL != wakeup->top && curr->top != wakeup->top) {
3808                         if (irq_debug > 1)
3809                                 printk("bttv%d: wakeup: top=%p\n",btv->c.nr,wakeup->top);
3810                         wakeup->top->vb.ts = ts;
3811                         wakeup->top->vb.field_count = btv->field_count;
3812                         wakeup->top->vb.state = state;
3813                         wake_up(&wakeup->top->vb.done);
3814                 }
3815                 if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) {
3816                         if (irq_debug > 1)
3817                                 printk("bttv%d: wakeup: bottom=%p\n",btv->c.nr,wakeup->bottom);
3818                         wakeup->bottom->vb.ts = ts;
3819                         wakeup->bottom->vb.field_count = btv->field_count;
3820                         wakeup->bottom->vb.state = state;
3821                         wake_up(&wakeup->bottom->vb.done);
3822                 }
3823         }
3824 }
3825
3826 static void
3827 bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup,
3828                     unsigned int state)
3829 {
3830         struct timeval ts;
3831
3832         if (NULL == wakeup)
3833                 return;
3834
3835         do_gettimeofday(&ts);
3836         wakeup->vb.ts = ts;
3837         wakeup->vb.field_count = btv->field_count;
3838         wakeup->vb.state = state;
3839         wake_up(&wakeup->vb.done);
3840 }
3841
3842 static void bttv_irq_timeout(unsigned long data)
3843 {
3844         struct bttv *btv = (struct bttv *)data;
3845         struct bttv_buffer_set old,new;
3846         struct bttv_buffer *ovbi;
3847         struct bttv_buffer *item;
3848         unsigned long flags;
3849
3850         if (bttv_verbose) {
3851                 printk(KERN_INFO "bttv%d: timeout: drop=%d irq=%d/%d, risc=%08x, ",
3852                        btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total,
3853                        btread(BT848_RISC_COUNT));
3854                 bttv_print_irqbits(btread(BT848_INT_STAT),0);
3855                 printk("\n");
3856         }
3857
3858         spin_lock_irqsave(&btv->s_lock,flags);
3859
3860         /* deactivate stuff */
3861         memset(&new,0,sizeof(new));
3862         old  = btv->curr;
3863         ovbi = btv->cvbi;
3864         btv->curr = new;
3865         btv->cvbi = NULL;
3866         btv->loop_irq = 0;
3867         bttv_buffer_activate_video(btv, &new);
3868         bttv_buffer_activate_vbi(btv,   NULL);
3869         bttv_set_dma(btv, 0);
3870
3871         /* wake up */
3872         bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_ERROR);
3873         bttv_irq_wakeup_vbi(btv, ovbi, VIDEOBUF_ERROR);
3874
3875         /* cancel all outstanding capture / vbi requests */
3876         while (!list_empty(&btv->capture)) {
3877                 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3878                 list_del(&item->vb.queue);
3879                 item->vb.state = VIDEOBUF_ERROR;
3880                 wake_up(&item->vb.done);
3881         }
3882         while (!list_empty(&btv->vcapture)) {
3883                 item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3884                 list_del(&item->vb.queue);
3885                 item->vb.state = VIDEOBUF_ERROR;
3886                 wake_up(&item->vb.done);
3887         }
3888
3889         btv->errors++;
3890         spin_unlock_irqrestore(&btv->s_lock,flags);
3891 }
3892
3893 static void
3894 bttv_irq_wakeup_top(struct bttv *btv)
3895 {
3896         struct bttv_buffer *wakeup = btv->curr.top;
3897
3898         if (NULL == wakeup)
3899                 return;
3900
3901         spin_lock(&btv->s_lock);
3902         btv->curr.top_irq = 0;
3903         btv->curr.top = NULL;
3904         bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
3905
3906         do_gettimeofday(&wakeup->vb.ts);
3907         wakeup->vb.field_count = btv->field_count;
3908         wakeup->vb.state = VIDEOBUF_DONE;
3909         wake_up(&wakeup->vb.done);
3910         spin_unlock(&btv->s_lock);
3911 }
3912
3913 static inline int is_active(struct btcx_riscmem *risc, u32 rc)
3914 {
3915         if (rc < risc->dma)
3916                 return 0;
3917         if (rc > risc->dma + risc->size)
3918                 return 0;
3919         return 1;
3920 }
3921
3922 static void
3923 bttv_irq_switch_video(struct bttv *btv)
3924 {
3925         struct bttv_buffer_set new;
3926         struct bttv_buffer_set old;
3927         dma_addr_t rc;
3928
3929         spin_lock(&btv->s_lock);
3930
3931         /* new buffer set */
3932         bttv_irq_next_video(btv, &new);
3933         rc = btread(BT848_RISC_COUNT);
3934         if ((btv->curr.top    && is_active(&btv->curr.top->top,       rc)) ||
3935             (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) {
3936                 btv->framedrop++;
3937                 if (debug_latency)
3938                         bttv_irq_debug_low_latency(btv, rc);
3939                 spin_unlock(&btv->s_lock);
3940                 return;
3941         }
3942
3943         /* switch over */
3944         old = btv->curr;
3945         btv->curr = new;
3946         btv->loop_irq &= ~1;
3947         bttv_buffer_activate_video(btv, &new);
3948         bttv_set_dma(btv, 0);
3949
3950         /* switch input */
3951         if (UNSET != btv->new_input) {
3952                 video_mux(btv,btv->new_input);
3953                 btv->new_input = UNSET;
3954         }
3955
3956         /* wake up finished buffers */
3957         bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_DONE);
3958         spin_unlock(&btv->s_lock);
3959 }
3960
3961 static void
3962 bttv_irq_switch_vbi(struct bttv *btv)
3963 {
3964         struct bttv_buffer *new = NULL;
3965         struct bttv_buffer *old;
3966         u32 rc;
3967
3968         spin_lock(&btv->s_lock);
3969
3970         if (!list_empty(&btv->vcapture))
3971                 new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3972         old = btv->cvbi;
3973
3974         rc = btread(BT848_RISC_COUNT);
3975         if (NULL != old && (is_active(&old->top,    rc) ||
3976                             is_active(&old->bottom, rc))) {
3977                 btv->framedrop++;
3978                 if (debug_latency)
3979                         bttv_irq_debug_low_latency(btv, rc);
3980                 spin_unlock(&btv->s_lock);
3981                 return;
3982         }
3983
3984         /* switch */
3985         btv->cvbi = new;
3986         btv->loop_irq &= ~4;
3987         bttv_buffer_activate_vbi(btv, new);
3988         bttv_set_dma(btv, 0);
3989
3990         bttv_irq_wakeup_vbi(btv, old, VIDEOBUF_DONE);
3991         spin_unlock(&btv->s_lock);
3992 }
3993
3994 static irqreturn_t bttv_irq(int irq, void *dev_id)
3995 {
3996         u32 stat,astat;
3997         u32 dstat;
3998         int count;
3999         struct bttv *btv;
4000         int handled = 0;
4001
4002         btv=(struct bttv *)dev_id;
4003
4004         if (btv->custom_irq)
4005                 handled = btv->custom_irq(btv);
4006
4007         count=0;
4008         while (1) {
4009                 /* get/clear interrupt status bits */
4010                 stat=btread(BT848_INT_STAT);
4011                 astat=stat&btread(BT848_INT_MASK);
4012                 if (!astat)
4013                         break;
4014                 handled = 1;
4015                 btwrite(stat,BT848_INT_STAT);
4016
4017                 /* get device status bits */
4018                 dstat=btread(BT848_DSTATUS);
4019
4020                 if (irq_debug) {
4021                         printk(KERN_DEBUG "bttv%d: irq loop=%d fc=%d "
4022                                "riscs=%x, riscc=%08x, ",
4023                                btv->c.nr, count, btv->field_count,
4024                                stat>>28, btread(BT848_RISC_COUNT));
4025                         bttv_print_irqbits(stat,astat);
4026                         if (stat & BT848_INT_HLOCK)
4027                                 printk("   HLOC => %s", (dstat & BT848_DSTATUS_HLOC)
4028                                        ? "yes" : "no");
4029                         if (stat & BT848_INT_VPRES)
4030                                 printk("   PRES => %s", (dstat & BT848_DSTATUS_PRES)
4031                                        ? "yes" : "no");
4032                         if (stat & BT848_INT_FMTCHG)
4033                                 printk("   NUML => %s", (dstat & BT848_DSTATUS_NUML)
4034                                        ? "625" : "525");
4035                         printk("\n");
4036                 }
4037
4038                 if (astat&BT848_INT_VSYNC)
4039                         btv->field_count++;
4040
4041                 if ((astat & BT848_INT_GPINT) && btv->remote) {
4042                         wake_up(&btv->gpioq);
4043                         bttv_input_irq(btv);
4044                 }
4045
4046                 if (astat & BT848_INT_I2CDONE) {
4047                         btv->i2c_done = stat;
4048                         wake_up(&btv->i2c_queue);
4049                 }
4050
4051                 if ((astat & BT848_INT_RISCI)  &&  (stat & (4<<28)))
4052                         bttv_irq_switch_vbi(btv);
4053
4054                 if ((astat & BT848_INT_RISCI)  &&  (stat & (2<<28)))
4055                         bttv_irq_wakeup_top(btv);
4056
4057                 if ((astat & BT848_INT_RISCI)  &&  (stat & (1<<28)))
4058                         bttv_irq_switch_video(btv);
4059
4060                 if ((astat & BT848_INT_HLOCK)  &&  btv->opt_automute)
4061                         audio_mute(btv, btv->mute);  /* trigger automute */
4062
4063                 if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) {
4064                         printk(KERN_INFO "bttv%d: %s%s @ %08x,",btv->c.nr,
4065                                (astat & BT848_INT_SCERR) ? "SCERR" : "",
4066                                (astat & BT848_INT_OCERR) ? "OCERR" : "",
4067                                btread(BT848_RISC_COUNT));
4068                         bttv_print_irqbits(stat,astat);
4069                         printk("\n");
4070                         if (bttv_debug)
4071                                 bttv_print_riscaddr(btv);
4072                 }
4073                 if (fdsr && astat & BT848_INT_FDSR) {
4074                         printk(KERN_INFO "bttv%d: FDSR @ %08x\n",
4075                                btv->c.nr,btread(BT848_RISC_COUNT));
4076                         if (bttv_debug)
4077                                 bttv_print_riscaddr(btv);
4078                 }
4079
4080                 count++;
4081                 if (count > 4) {
4082
4083                         if (count > 8 || !(astat & BT848_INT_GPINT)) {
4084                                 btwrite(0, BT848_INT_MASK);
4085
4086                                 printk(KERN_ERR
4087                                            "bttv%d: IRQ lockup, cleared int mask [", btv->c.nr);
4088                         } else {
4089                                 printk(KERN_ERR
4090                                            "bttv%d: IRQ lockup, clearing GPINT from int mask [", btv->c.nr);
4091
4092                                 btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT),
4093                                                 BT848_INT_MASK);
4094                         };
4095
4096                         bttv_print_irqbits(stat,astat);
4097
4098                         printk("]\n");
4099                 }
4100         }
4101         btv->irq_total++;
4102         if (handled)
4103                 btv->irq_me++;
4104         return IRQ_RETVAL(handled);
4105 }
4106
4107
4108 /* ----------------------------------------------------------------------- */
4109 /* initialitation                                                          */
4110
4111 static struct video_device *vdev_init(struct bttv *btv,
4112                                       struct video_device *template,
4113                                       char *type)
4114 {
4115         struct video_device *vfd;
4116
4117         vfd = video_device_alloc();
4118         if (NULL == vfd)
4119                 return NULL;
4120         *vfd = *template;
4121         vfd->minor   = -1;
4122         vfd->dev     = &btv->c.pci->dev;
4123         vfd->release = video_device_release;
4124         snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)",
4125                  btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "",
4126                  type, bttv_tvcards[btv->c.type].name);
4127         return vfd;
4128 }
4129
4130 static void bttv_unregister_video(struct bttv *btv)
4131 {
4132         if (btv->video_dev) {
4133                 if (-1 != btv->video_dev->minor)
4134                         video_unregister_device(btv->video_dev);
4135                 else
4136                         video_device_release(btv->video_dev);
4137                 btv->video_dev = NULL;
4138         }
4139         if (btv->vbi_dev) {
4140                 if (-1 != btv->vbi_dev->minor)
4141                         video_unregister_device(btv->vbi_dev);
4142                 else
4143                         video_device_release(btv->vbi_dev);
4144                 btv->vbi_dev = NULL;
4145         }
4146         if (btv->radio_dev) {
4147                 if (-1 != btv->radio_dev->minor)
4148                         video_unregister_device(btv->radio_dev);
4149                 else
4150                         video_device_release(btv->radio_dev);
4151                 btv->radio_dev = NULL;
4152         }
4153 }
4154
4155 /* register video4linux devices */
4156 static int __devinit bttv_register_video(struct bttv *btv)
4157 {
4158         if (no_overlay <= 0) {
4159                 bttv_video_template.type |= VID_TYPE_OVERLAY;
4160         } else {
4161                 printk("bttv: Overlay support disabled.\n");
4162         }
4163
4164         /* video */
4165         btv->video_dev = vdev_init(btv, &bttv_video_template, "video");
4166         if (NULL == btv->video_dev)
4167                 goto err;
4168         if (video_register_device(btv->video_dev,VFL_TYPE_GRABBER,video_nr)<0)
4169                 goto err;
4170         printk(KERN_INFO "bttv%d: registered device video%d\n",
4171                btv->c.nr,btv->video_dev->minor & 0x1f);
4172         if (device_create_file(&btv->video_dev->class_dev,
4173                                      &dev_attr_card)<0) {
4174                 printk(KERN_ERR "bttv%d: device_create_file 'card' "
4175                        "failed\n", btv->c.nr);
4176                 goto err;
4177         }
4178
4179         /* vbi */
4180         btv->vbi_dev = vdev_init(btv, &bttv_vbi_template, "vbi");
4181         if (NULL == btv->vbi_dev)
4182                 goto err;
4183         if (video_register_device(btv->vbi_dev,VFL_TYPE_VBI,vbi_nr)<0)
4184                 goto err;
4185         printk(KERN_INFO "bttv%d: registered device vbi%d\n",
4186                btv->c.nr,btv->vbi_dev->minor & 0x1f);
4187
4188         if (!btv->has_radio)
4189                 return 0;
4190         /* radio */
4191         btv->radio_dev = vdev_init(btv, &radio_template, "radio");
4192         if (NULL == btv->radio_dev)
4193                 goto err;
4194         if (video_register_device(btv->radio_dev, VFL_TYPE_RADIO,radio_nr)<0)
4195                 goto err;
4196         printk(KERN_INFO "bttv%d: registered device radio%d\n",
4197                btv->c.nr,btv->radio_dev->minor & 0x1f);
4198
4199         /* all done */
4200         return 0;
4201
4202  err:
4203         bttv_unregister_video(btv);
4204         return -1;
4205 }
4206
4207
4208 /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
4209 /* response on cards with no firmware is not enabled by OF */
4210 static void pci_set_command(struct pci_dev *dev)
4211 {
4212 #if defined(__powerpc__)
4213         unsigned int cmd;
4214
4215         pci_read_config_dword(dev, PCI_COMMAND, &cmd);
4216         cmd = (cmd | PCI_COMMAND_MEMORY );
4217         pci_write_config_dword(dev, PCI_COMMAND, cmd);
4218 #endif
4219 }
4220
4221 static int __devinit bttv_probe(struct pci_dev *dev,
4222                                 const struct pci_device_id *pci_id)
4223 {
4224         int result;
4225         unsigned char lat;
4226         struct bttv *btv;
4227
4228         if (bttv_num == BTTV_MAX)
4229                 return -ENOMEM;
4230         printk(KERN_INFO "bttv: Bt8xx card found (%d).\n", bttv_num);
4231         btv=&bttvs[bttv_num];
4232         memset(btv,0,sizeof(*btv));
4233         btv->c.nr  = bttv_num;
4234         sprintf(btv->c.name,"bttv%d",btv->c.nr);
4235
4236         /* initialize structs / fill in defaults */
4237         mutex_init(&btv->lock);
4238         spin_lock_init(&btv->s_lock);
4239         spin_lock_init(&btv->gpio_lock);
4240         init_waitqueue_head(&btv->gpioq);
4241         init_waitqueue_head(&btv->i2c_queue);
4242         INIT_LIST_HEAD(&btv->c.subs);
4243         INIT_LIST_HEAD(&btv->capture);
4244         INIT_LIST_HEAD(&btv->vcapture);
4245         v4l2_prio_init(&btv->prio);
4246
4247         init_timer(&btv->timeout);
4248         btv->timeout.function = bttv_irq_timeout;
4249         btv->timeout.data     = (unsigned long)btv;
4250
4251         btv->i2c_rc = -1;
4252         btv->tuner_type  = UNSET;
4253         btv->new_input   = UNSET;
4254         btv->has_radio=radio[btv->c.nr];
4255
4256         /* pci stuff (init, get irq/mmio, ... */
4257         btv->c.pci = dev;
4258         btv->id  = dev->device;
4259         if (pci_enable_device(dev)) {
4260                 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4261                        btv->c.nr);
4262                 return -EIO;
4263         }
4264         if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
4265                 printk(KERN_WARNING "bttv%d: No suitable DMA available.\n",
4266                        btv->c.nr);
4267                 return -EIO;
4268         }
4269         if (!request_mem_region(pci_resource_start(dev,0),
4270                                 pci_resource_len(dev,0),
4271                                 btv->c.name)) {
4272                 printk(KERN_WARNING "bttv%d: can't request iomem (0x%llx).\n",
4273                        btv->c.nr,
4274                        (unsigned long long)pci_resource_start(dev,0));
4275                 return -EBUSY;
4276         }
4277         pci_set_master(dev);
4278         pci_set_command(dev);
4279         pci_set_drvdata(dev,btv);
4280
4281         pci_read_config_byte(dev, PCI_CLASS_REVISION, &btv->revision);
4282         pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
4283         printk(KERN_INFO "bttv%d: Bt%d (rev %d) at %s, ",
4284                bttv_num,btv->id, btv->revision, pci_name(dev));
4285         printk("irq: %d, latency: %d, mmio: 0x%llx\n",
4286                btv->c.pci->irq, lat,
4287                (unsigned long long)pci_resource_start(dev,0));
4288         schedule();
4289
4290         btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000);
4291         if (NULL == btv->bt848_mmio) {
4292                 printk("bttv%d: ioremap() failed\n", btv->c.nr);
4293                 result = -EIO;
4294                 goto fail1;
4295         }
4296
4297         /* identify card */
4298         bttv_idcard(btv);
4299
4300         /* disable irqs, register irq handler */
4301         btwrite(0, BT848_INT_MASK);
4302         result = request_irq(btv->c.pci->irq, bttv_irq,
4303                              IRQF_SHARED | IRQF_DISABLED,btv->c.name,(void *)btv);
4304         if (result < 0) {
4305                 printk(KERN_ERR "bttv%d: can't get IRQ %d\n",
4306                        bttv_num,btv->c.pci->irq);
4307                 goto fail1;
4308         }
4309
4310         if (0 != bttv_handle_chipset(btv)) {
4311                 result = -EIO;
4312                 goto fail2;
4313         }
4314
4315         /* init options from insmod args */
4316         btv->opt_combfilter = combfilter;
4317         btv->opt_lumafilter = lumafilter;
4318         btv->opt_automute   = automute;
4319         btv->opt_chroma_agc = chroma_agc;
4320         btv->opt_adc_crush  = adc_crush;
4321         btv->opt_vcr_hack   = vcr_hack;
4322         btv->opt_whitecrush_upper  = whitecrush_upper;
4323         btv->opt_whitecrush_lower  = whitecrush_lower;
4324         btv->opt_uv_ratio   = uv_ratio;
4325         btv->opt_full_luma_range   = full_luma_range;
4326         btv->opt_coring     = coring;
4327
4328         /* fill struct bttv with some useful defaults */
4329         btv->init.btv         = btv;
4330         btv->init.ov.w.width  = 320;
4331         btv->init.ov.w.height = 240;
4332         btv->init.fmt         = format_by_fourcc(V4L2_PIX_FMT_BGR24);
4333         btv->init.width       = 320;
4334         btv->init.height      = 240;
4335         btv->input = 0;
4336
4337         /* initialize hardware */
4338         if (bttv_gpio)
4339                 bttv_gpio_tracking(btv,"pre-init");
4340
4341         bttv_risc_init_main(btv);
4342         init_bt848(btv);
4343
4344         /* gpio */
4345         btwrite(0x00, BT848_GPIO_REG_INP);
4346         btwrite(0x00, BT848_GPIO_OUT_EN);
4347         if (bttv_verbose)
4348                 bttv_gpio_tracking(btv,"init");
4349
4350         /* needs to be done before i2c is registered */
4351         bttv_init_card1(btv);
4352
4353         /* register i2c + gpio */
4354         init_bttv_i2c(btv);
4355
4356         /* some card-specific stuff (needs working i2c) */
4357         bttv_init_card2(btv);
4358         init_irqreg(btv);
4359
4360         /* register video4linux + input */
4361         if (!bttv_tvcards[btv->c.type].no_video) {
4362                 bttv_register_video(btv);
4363                 bt848_bright(btv,32768);
4364                 bt848_contrast(btv,32768);
4365                 bt848_hue(btv,32768);
4366                 bt848_sat(btv,32768);
4367                 audio_mute(btv, 1);
4368                 set_input(btv, 0, btv->tvnorm);
4369                 bttv_crop_reset(&btv->crop[0], btv->tvnorm);
4370                 btv->crop[1] = btv->crop[0]; /* current = default */
4371                 disclaim_vbi_lines(btv);
4372                 disclaim_video_lines(btv);
4373         }
4374
4375         /* add subdevices and autoload dvb-bt8xx if needed */
4376         if (bttv_tvcards[btv->c.type].has_dvb) {
4377                 bttv_sub_add_device(&btv->c, "dvb");
4378                 request_modules(btv);
4379         }
4380
4381         bttv_input_init(btv);
4382
4383         /* everything is fine */
4384         bttv_num++;
4385         return 0;
4386
4387  fail2:
4388         free_irq(btv->c.pci->irq,btv);
4389
4390  fail1:
4391         if (btv->bt848_mmio)
4392                 iounmap(btv->bt848_mmio);
4393         release_mem_region(pci_resource_start(btv->c.pci,0),
4394                            pci_resource_len(btv->c.pci,0));
4395         pci_set_drvdata(dev,NULL);
4396         return result;
4397 }
4398
4399 static void __devexit bttv_remove(struct pci_dev *pci_dev)
4400 {
4401         struct bttv *btv = pci_get_drvdata(pci_dev);
4402
4403         if (bttv_verbose)
4404                 printk("bttv%d: unloading\n",btv->c.nr);
4405
4406         /* shutdown everything (DMA+IRQs) */
4407         btand(~15, BT848_GPIO_DMA_CTL);
4408         btwrite(0, BT848_INT_MASK);
4409         btwrite(~0x0, BT848_INT_STAT);
4410         btwrite(0x0, BT848_GPIO_OUT_EN);
4411         if (bttv_gpio)
4412                 bttv_gpio_tracking(btv,"cleanup");
4413
4414         /* tell gpio modules we are leaving ... */
4415         btv->shutdown=1;
4416         wake_up(&btv->gpioq);
4417         bttv_input_fini(btv);
4418         bttv_sub_del_devices(&btv->c);
4419
4420         /* unregister i2c_bus + input */
4421         fini_bttv_i2c(btv);
4422
4423         /* unregister video4linux */
4424         bttv_unregister_video(btv);
4425
4426         /* free allocated memory */
4427         btcx_riscmem_free(btv->c.pci,&btv->main);
4428
4429         /* free ressources */
4430         free_irq(btv->c.pci->irq,btv);
4431         iounmap(btv->bt848_mmio);
4432         release_mem_region(pci_resource_start(btv->c.pci,0),
4433                            pci_resource_len(btv->c.pci,0));
4434
4435         pci_set_drvdata(pci_dev, NULL);
4436         return;
4437 }
4438
4439 #ifdef CONFIG_PM
4440 static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state)
4441 {
4442         struct bttv *btv = pci_get_drvdata(pci_dev);
4443         struct bttv_buffer_set idle;
4444         unsigned long flags;
4445
4446         dprintk("bttv%d: suspend %d\n", btv->c.nr, state.event);
4447
4448         /* stop dma + irqs */
4449         spin_lock_irqsave(&btv->s_lock,flags);
4450         memset(&idle, 0, sizeof(idle));
4451         btv->state.video = btv->curr;
4452         btv->state.vbi   = btv->cvbi;
4453         btv->state.loop_irq = btv->loop_irq;
4454         btv->curr = idle;
4455         btv->loop_irq = 0;
4456         bttv_buffer_activate_video(btv, &idle);
4457         bttv_buffer_activate_vbi(btv, NULL);
4458         bttv_set_dma(btv, 0);
4459         btwrite(0, BT848_INT_MASK);
4460         spin_unlock_irqrestore(&btv->s_lock,flags);
4461
4462         /* save bt878 state */
4463         btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN);
4464         btv->state.gpio_data   = gpio_read();
4465
4466         /* save pci state */
4467         pci_save_state(pci_dev);
4468         if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
4469                 pci_disable_device(pci_dev);
4470                 btv->state.disabled = 1;
4471         }
4472         return 0;
4473 }
4474
4475 static int bttv_resume(struct pci_dev *pci_dev)
4476 {
4477         struct bttv *btv = pci_get_drvdata(pci_dev);
4478         unsigned long flags;
4479         int err;
4480
4481         dprintk("bttv%d: resume\n", btv->c.nr);
4482
4483         /* restore pci state */
4484         if (btv->state.disabled) {
4485                 err=pci_enable_device(pci_dev);
4486                 if (err) {
4487                         printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4488                                                                 btv->c.nr);
4489                         return err;
4490                 }
4491                 btv->state.disabled = 0;
4492         }
4493         err=pci_set_power_state(pci_dev, PCI_D0);
4494         if (err) {
4495                 pci_disable_device(pci_dev);
4496                 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4497                                                         btv->c.nr);
4498                 btv->state.disabled = 1;
4499                 return err;
4500         }
4501
4502         pci_restore_state(pci_dev);
4503
4504         /* restore bt878 state */
4505         bttv_reinit_bt848(btv);
4506         gpio_inout(0xffffff, btv->state.gpio_enable);
4507         gpio_write(btv->state.gpio_data);
4508
4509         /* restart dma */
4510         spin_lock_irqsave(&btv->s_lock,flags);
4511         btv->curr = btv->state.video;
4512         btv->cvbi = btv->state.vbi;
4513         btv->loop_irq = btv->state.loop_irq;
4514         bttv_buffer_activate_video(btv, &btv->curr);
4515         bttv_buffer_activate_vbi(btv, btv->cvbi);
4516         bttv_set_dma(btv, 0);
4517         spin_unlock_irqrestore(&btv->s_lock,flags);
4518         return 0;
4519 }
4520 #endif
4521
4522 static struct pci_device_id bttv_pci_tbl[] = {
4523         {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT848,
4524          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4525         {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT849,
4526          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4527         {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT878,
4528          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4529         {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT879,
4530          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4531         {0,}
4532 };
4533
4534 MODULE_DEVICE_TABLE(pci, bttv_pci_tbl);
4535
4536 static struct pci_driver bttv_pci_driver = {
4537         .name     = "bttv",
4538         .id_table = bttv_pci_tbl,
4539         .probe    = bttv_probe,
4540         .remove   = __devexit_p(bttv_remove),
4541 #ifdef CONFIG_PM
4542         .suspend  = bttv_suspend,
4543         .resume   = bttv_resume,
4544 #endif
4545 };
4546
4547 static int __init bttv_init_module(void)
4548 {
4549         int ret;
4550
4551         bttv_num = 0;
4552
4553         printk(KERN_INFO "bttv: driver version %d.%d.%d loaded\n",
4554                (BTTV_VERSION_CODE >> 16) & 0xff,
4555                (BTTV_VERSION_CODE >> 8) & 0xff,
4556                BTTV_VERSION_CODE & 0xff);
4557 #ifdef SNAPSHOT
4558         printk(KERN_INFO "bttv: snapshot date %04d-%02d-%02d\n",
4559                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
4560 #endif
4561         if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
4562                 gbuffers = 2;
4563         if (gbufsize < 0 || gbufsize > BTTV_MAX_FBUF)
4564                 gbufsize = BTTV_MAX_FBUF;
4565         gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
4566         if (bttv_verbose)
4567                 printk(KERN_INFO "bttv: using %d buffers with %dk (%d pages) each for capture\n",
4568                        gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT);
4569
4570         bttv_check_chipset();
4571
4572         ret = bus_register(&bttv_sub_bus_type);
4573         if (ret < 0) {
4574                 printk(KERN_WARNING "bttv: bus_register error: %d\n", ret);
4575                 return ret;
4576         }
4577         ret = pci_register_driver(&bttv_pci_driver);
4578         if (ret < 0)
4579                 bus_unregister(&bttv_sub_bus_type);
4580
4581         return ret;
4582 }
4583
4584 static void __exit bttv_cleanup_module(void)
4585 {
4586         pci_unregister_driver(&bttv_pci_driver);
4587         bus_unregister(&bttv_sub_bus_type);
4588 }
4589
4590 module_init(bttv_init_module);
4591 module_exit(bttv_cleanup_module);
4592
4593 /*
4594  * Local variables:
4595  * c-basic-offset: 8
4596  * End:
4597  */