drivers/media/pci/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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  38
  39 #include <linux/init.h>
  40 #include <linux/module.h>
  41 #include <linux/delay.h>
  42 #include <linux/slab.h>
  43 #include <linux/errno.h>
  44 #include <linux/fs.h>
  45 #include <linux/kernel.h>
  46 #include <linux/sched.h>
  47 #include <linux/interrupt.h>
  48 #include <linux/kdev_t.h>
  49 #include "bttvp.h"
  50 #include <media/v4l2-common.h>
  51 #include <media/v4l2-ioctl.h>
  52 #include <media/v4l2-event.h>
  53 #include <media/tvaudio.h>
  54 #include <media/msp3400.h>
  55
  56 #include <linux/dma-mapping.h>
  57
  58 #include <asm/io.h>
  59 #include <asm/byteorder.h>
  60
  61 #include <media/saa6588.h>
  62
  63 #define BTTV_VERSION "0.9.19"
  64
  65 unsigned int bttv_num;                  /* number of Bt848s in use */
  66 struct bttv *bttvs[BTTV_MAX];
  67
  68 unsigned int bttv_debug;
  69 unsigned int bttv_verbose = 1;
  70 unsigned int bttv_gpio;
  71
  72 /* config variables */
  73 #ifdef __BIG_ENDIAN
  74 static unsigned int bigendian=1;
  75 #else
  76 static unsigned int bigendian;
  77 #endif
  78 static unsigned int radio[BTTV_MAX];
  79 static unsigned int irq_debug;
  80 static unsigned int gbuffers = 8;
  81 static unsigned int gbufsize = 0x208000;
  82 static unsigned int reset_crop = 1;
  83
  84 static int video_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
  85 static int radio_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
  86 static int vbi_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
  87 static int debug_latency;
  88 static int disable_ir;
  89
  90 static unsigned int fdsr;
  91
  92 /* options */
  93 static unsigned int combfilter;
  94 static unsigned int lumafilter;
  95 static unsigned int automute    = 1;
  96 static unsigned int chroma_agc;
  97 static unsigned int agc_crush   = 1;
  98 static unsigned int whitecrush_upper = 0xCF;
  99 static unsigned int whitecrush_lower = 0x7F;
 100 static unsigned int vcr_hack;
 101 static unsigned int irq_iswitch;
 102 static unsigned int uv_ratio    = 50;
 103 static unsigned int full_luma_range;
 104 static unsigned int coring;
 105
 106 /* API features (turn on/off stuff for testing) */
 107 static unsigned int v4l2        = 1;
 108
 109 /* insmod args */
 110 module_param(bttv_verbose,      int, 0644);
 111 module_param(bttv_gpio,         int, 0644);
 112 module_param(bttv_debug,        int, 0644);
 113 module_param(irq_debug,         int, 0644);
 114 module_param(debug_latency,     int, 0644);
 115 module_param(disable_ir,        int, 0444);
 116
 117 module_param(fdsr,              int, 0444);
 118 module_param(gbuffers,          int, 0444);
 119 module_param(gbufsize,          int, 0444);
 120 module_param(reset_crop,        int, 0444);
 121
 122 module_param(v4l2,              int, 0644);
 123 module_param(bigendian,         int, 0644);
 124 module_param(irq_iswitch,       int, 0644);
 125 module_param(combfilter,        int, 0444);
 126 module_param(lumafilter,        int, 0444);
 127 module_param(automute,          int, 0444);
 128 module_param(chroma_agc,        int, 0444);
 129 module_param(agc_crush,         int, 0444);
 130 module_param(whitecrush_upper,  int, 0444);
 131 module_param(whitecrush_lower,  int, 0444);
 132 module_param(vcr_hack,          int, 0444);
 133 module_param(uv_ratio,          int, 0444);
 134 module_param(full_luma_range,   int, 0444);
 135 module_param(coring,            int, 0444);
 136
 137 module_param_array(radio,       int, NULL, 0444);
 138 module_param_array(video_nr,    int, NULL, 0444);
 139 module_param_array(radio_nr,    int, NULL, 0444);
 140 module_param_array(vbi_nr,      int, NULL, 0444);
 141
 142 MODULE_PARM_DESC(radio, "The TV card supports radio, default is 0 (no)");
 143 MODULE_PARM_DESC(bigendian, "byte order of the framebuffer, default is native endian");
 144 MODULE_PARM_DESC(bttv_verbose, "verbose startup messages, default is 1 (yes)");
 145 MODULE_PARM_DESC(bttv_gpio, "log gpio changes, default is 0 (no)");
 146 MODULE_PARM_DESC(bttv_debug, "debug messages, default is 0 (no)");
 147 MODULE_PARM_DESC(irq_debug, "irq handler debug messages, default is 0 (no)");
 148 MODULE_PARM_DESC(disable_ir, "disable infrared remote support");
 149 MODULE_PARM_DESC(gbuffers, "number of capture buffers. range 2-32, default 8");
 150 MODULE_PARM_DESC(gbufsize, "size of the capture buffers, default is 0x208000");
 151 MODULE_PARM_DESC(reset_crop, "reset cropping parameters at open(), default "
 152                  "is 1 (yes) for compatibility with older applications");
 153 MODULE_PARM_DESC(automute, "mute audio on bad/missing video signal, default is 1 (yes)");
 154 MODULE_PARM_DESC(chroma_agc, "enables the AGC of chroma signal, default is 0 (no)");
 155 MODULE_PARM_DESC(agc_crush, "enables the luminance AGC crush, default is 1 (yes)");
 156 MODULE_PARM_DESC(whitecrush_upper, "sets the white crush upper value, default is 207");
 157 MODULE_PARM_DESC(whitecrush_lower, "sets the white crush lower value, default is 127");
 158 MODULE_PARM_DESC(vcr_hack, "enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)");
 159 MODULE_PARM_DESC(irq_iswitch, "switch inputs in irq handler");
 160 MODULE_PARM_DESC(uv_ratio, "ratio between u and v gains, default is 50");
 161 MODULE_PARM_DESC(full_luma_range, "use the full luma range, default is 0 (no)");
 162 MODULE_PARM_DESC(coring, "set the luma coring level, default is 0 (no)");
 163 MODULE_PARM_DESC(video_nr, "video device numbers");
 164 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
 165 MODULE_PARM_DESC(radio_nr, "radio device numbers");
 166
 167 MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards");
 168 MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
 169 MODULE_LICENSE("GPL");
 170 MODULE_VERSION(BTTV_VERSION);
 171
 172 #define V4L2_CID_PRIVATE_COMBFILTER             (V4L2_CID_USER_BTTV_BASE + 0)
 173 #define V4L2_CID_PRIVATE_AUTOMUTE               (V4L2_CID_USER_BTTV_BASE + 1)
 174 #define V4L2_CID_PRIVATE_LUMAFILTER             (V4L2_CID_USER_BTTV_BASE + 2)
 175 #define V4L2_CID_PRIVATE_AGC_CRUSH              (V4L2_CID_USER_BTTV_BASE + 3)
 176 #define V4L2_CID_PRIVATE_VCR_HACK               (V4L2_CID_USER_BTTV_BASE + 4)
 177 #define V4L2_CID_PRIVATE_WHITECRUSH_LOWER       (V4L2_CID_USER_BTTV_BASE + 5)
 178 #define V4L2_CID_PRIVATE_WHITECRUSH_UPPER       (V4L2_CID_USER_BTTV_BASE + 6)
 179 #define V4L2_CID_PRIVATE_UV_RATIO               (V4L2_CID_USER_BTTV_BASE + 7)
 180 #define V4L2_CID_PRIVATE_FULL_LUMA_RANGE        (V4L2_CID_USER_BTTV_BASE + 8)
 181 #define V4L2_CID_PRIVATE_CORING                 (V4L2_CID_USER_BTTV_BASE + 9)
 182
 183 /* ----------------------------------------------------------------------- */
 184 /* sysfs                                                                   */
 185
 186 static ssize_t show_card(struct device *cd,
 187                          struct device_attribute *attr, char *buf)
 188 {
 189         struct video_device *vfd = container_of(cd, struct video_device, dev);
 190         struct bttv *btv = video_get_drvdata(vfd);
 191         return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET);
 192 }
 193 static DEVICE_ATTR(card, S_IRUGO, show_card, NULL);
 194
 195 /* ----------------------------------------------------------------------- */
 196 /* dvb auto-load setup                                                     */
 197 #if defined(CONFIG_MODULES) && defined(MODULE)
 198 static void request_module_async(struct work_struct *work)
 199 {
 200         request_module("dvb-bt8xx");
 201 }
 202
 203 static void request_modules(struct bttv *dev)
 204 {
 205         INIT_WORK(&dev->request_module_wk, request_module_async);
 206         schedule_work(&dev->request_module_wk);
 207 }
 208
 209 static void flush_request_modules(struct bttv *dev)
 210 {
 211         flush_work(&dev->request_module_wk);
 212 }
 213 #else
 214 #define request_modules(dev)
 215 #define flush_request_modules(dev) do {} while(0)
 216 #endif /* CONFIG_MODULES */
 217
 218
 219 /* ----------------------------------------------------------------------- */
 220 /* static data                                                             */
 221
 222 /* special timing tables from conexant... */
 223 static u8 SRAM_Table[][60] =
 224 {
 225         /* PAL digital input over GPIO[7:0] */
 226         {
 227                 45, // 45 bytes following
 228                 0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16,
 229                 0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00,
 230                 0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00,
 231                 0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37,
 232                 0x37,0x00,0xAF,0x21,0x00
 233         },
 234         /* NTSC digital input over GPIO[7:0] */
 235         {
 236                 51, // 51 bytes following
 237                 0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06,
 238                 0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00,
 239                 0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07,
 240                 0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6,
 241                 0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21,
 242                 0x00,
 243         },
 244         // TGB_NTSC392 // quartzsight
 245         // This table has been modified to be used for Fusion Rev D
 246         {
 247                 0x2A, // size of table = 42
 248                 0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24,
 249                 0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10,
 250                 0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00,
 251                 0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3,
 252                 0x20, 0x00
 253         }
 254 };
 255
 256 /* minhdelayx1  first video pixel we can capture on a line and
 257    hdelayx1     start of active video, both relative to rising edge of
 258                 /HRESET pulse (0H) in 1 / fCLKx1.
 259    swidth       width of active video and
 260    totalwidth   total line width, both in 1 / fCLKx1.
 261    sqwidth      total line width in square pixels.
 262    vdelay       start of active video in 2 * field lines relative to
 263                 trailing edge of /VRESET pulse (VDELAY register).
 264    sheight      height of active video in 2 * field lines.
 265    extraheight  Added to sheight for cropcap.bounds.height only
 266    videostart0  ITU-R frame line number of the line corresponding
 267                 to vdelay in the first field. */
 268 #define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth,      \
 269                 vdelay, sheight, extraheight, videostart0)               \
 270         .cropcap.bounds.left = minhdelayx1,                              \
 271         /* * 2 because vertically we count field lines times two, */     \
 272         /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */           \
 273         .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \
 274         /* 4 is a safety margin at the end of the line. */               \
 275         .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4,        \
 276         .cropcap.bounds.height = (sheight) + (extraheight) + (vdelay) -  \
 277                                  MIN_VDELAY,                             \
 278         .cropcap.defrect.left = hdelayx1,                                \
 279         .cropcap.defrect.top = (videostart0) * 2,                        \
 280         .cropcap.defrect.width = swidth,                                 \
 281         .cropcap.defrect.height = sheight,                               \
 282         .cropcap.pixelaspect.numerator = totalwidth,                     \
 283         .cropcap.pixelaspect.denominator = sqwidth,
 284
 285 const struct bttv_tvnorm bttv_tvnorms[] = {
 286         /* PAL-BDGHI */
 287         /* max. active video is actually 922, but 924 is divisible by 4 and 3! */
 288         /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
 289         {
 290                 .v4l2_id        = V4L2_STD_PAL,
 291                 .name           = "PAL",
 292                 .Fsc            = 35468950,
 293                 .swidth         = 924,
 294                 .sheight        = 576,
 295                 .totalwidth     = 1135,
 296                 .adelay         = 0x7f,
 297                 .bdelay         = 0x72,
 298                 .iform          = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
 299                 .scaledtwidth   = 1135,
 300                 .hdelayx1       = 186,
 301                 .hactivex1      = 924,
 302                 .vdelay         = 0x20,
 303                 .vbipack        = 255, /* min (2048 / 4, 0x1ff) & 0xff */
 304                 .sram           = 0,
 305                 /* ITU-R frame line number of the first VBI line
 306                    we can capture, of the first and second field.
 307                    The last line is determined by cropcap.bounds. */
 308                 .vbistart       = { 7, 320 },
 309                 CROPCAP(/* minhdelayx1 */ 68,
 310                         /* hdelayx1 */ 186,
 311                         /* Should be (768 * 1135 + 944 / 2) / 944.
 312                            cropcap.defrect is used for image width
 313                            checks, so we keep the old value 924. */
 314                         /* swidth */ 924,
 315                         /* totalwidth */ 1135,
 316                         /* sqwidth */ 944,
 317                         /* vdelay */ 0x20,
 318                         /* sheight */ 576,
 319                         /* bt878 (and bt848?) can capture another
 320                            line below active video. */
 321                         /* extraheight */ 2,
 322                         /* videostart0 */ 23)
 323         },{
 324                 .v4l2_id        = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
 325                 .name           = "NTSC",
 326                 .Fsc            = 28636363,
 327                 .swidth         = 768,
 328                 .sheight        = 480,
 329                 .totalwidth     = 910,
 330                 .adelay         = 0x68,
 331                 .bdelay         = 0x5d,
 332                 .iform          = (BT848_IFORM_NTSC|BT848_IFORM_XT0),
 333                 .scaledtwidth   = 910,
 334                 .hdelayx1       = 128,
 335                 .hactivex1      = 910,
 336                 .vdelay         = 0x1a,
 337                 .vbipack        = 144, /* min (1600 / 4, 0x1ff) & 0xff */
 338                 .sram           = 1,
 339                 .vbistart       = { 10, 273 },
 340                 CROPCAP(/* minhdelayx1 */ 68,
 341                         /* hdelayx1 */ 128,
 342                         /* Should be (640 * 910 + 780 / 2) / 780? */
 343                         /* swidth */ 768,
 344                         /* totalwidth */ 910,
 345                         /* sqwidth */ 780,
 346                         /* vdelay */ 0x1a,
 347                         /* sheight */ 480,
 348                         /* extraheight */ 0,
 349                         /* videostart0 */ 23)
 350         },{
 351                 .v4l2_id        = V4L2_STD_SECAM,
 352                 .name           = "SECAM",
 353                 .Fsc            = 35468950,
 354                 .swidth         = 924,
 355                 .sheight        = 576,
 356                 .totalwidth     = 1135,
 357                 .adelay         = 0x7f,
 358                 .bdelay         = 0xb0,
 359                 .iform          = (BT848_IFORM_SECAM|BT848_IFORM_XT1),
 360                 .scaledtwidth   = 1135,
 361                 .hdelayx1       = 186,
 362                 .hactivex1      = 922,
 363                 .vdelay         = 0x20,
 364                 .vbipack        = 255,
 365                 .sram           = 0, /* like PAL, correct? */
 366                 .vbistart       = { 7, 320 },
 367                 CROPCAP(/* minhdelayx1 */ 68,
 368                         /* hdelayx1 */ 186,
 369                         /* swidth */ 924,
 370                         /* totalwidth */ 1135,
 371                         /* sqwidth */ 944,
 372                         /* vdelay */ 0x20,
 373                         /* sheight */ 576,
 374                         /* extraheight */ 0,
 375                         /* videostart0 */ 23)
 376         },{
 377                 .v4l2_id        = V4L2_STD_PAL_Nc,
 378                 .name           = "PAL-Nc",
 379                 .Fsc            = 28636363,
 380                 .swidth         = 640,
 381                 .sheight        = 576,
 382                 .totalwidth     = 910,
 383                 .adelay         = 0x68,
 384                 .bdelay         = 0x5d,
 385                 .iform          = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0),
 386                 .scaledtwidth   = 780,
 387                 .hdelayx1       = 130,
 388                 .hactivex1      = 734,
 389                 .vdelay         = 0x1a,
 390                 .vbipack        = 144,
 391                 .sram           = -1,
 392                 .vbistart       = { 7, 320 },
 393                 CROPCAP(/* minhdelayx1 */ 68,
 394                         /* hdelayx1 */ 130,
 395                         /* swidth */ (640 * 910 + 780 / 2) / 780,
 396                         /* totalwidth */ 910,
 397                         /* sqwidth */ 780,
 398                         /* vdelay */ 0x1a,
 399                         /* sheight */ 576,
 400                         /* extraheight */ 0,
 401                         /* videostart0 */ 23)
 402         },{
 403                 .v4l2_id        = V4L2_STD_PAL_M,
 404                 .name           = "PAL-M",
 405                 .Fsc            = 28636363,
 406                 .swidth         = 640,
 407                 .sheight        = 480,
 408                 .totalwidth     = 910,
 409                 .adelay         = 0x68,
 410                 .bdelay         = 0x5d,
 411                 .iform          = (BT848_IFORM_PAL_M|BT848_IFORM_XT0),
 412                 .scaledtwidth   = 780,
 413                 .hdelayx1       = 135,
 414                 .hactivex1      = 754,
 415                 .vdelay         = 0x1a,
 416                 .vbipack        = 144,
 417                 .sram           = -1,
 418                 .vbistart       = { 10, 273 },
 419                 CROPCAP(/* minhdelayx1 */ 68,
 420                         /* hdelayx1 */ 135,
 421                         /* swidth */ (640 * 910 + 780 / 2) / 780,
 422                         /* totalwidth */ 910,
 423                         /* sqwidth */ 780,
 424                         /* vdelay */ 0x1a,
 425                         /* sheight */ 480,
 426                         /* extraheight */ 0,
 427                         /* videostart0 */ 23)
 428         },{
 429                 .v4l2_id        = V4L2_STD_PAL_N,
 430                 .name           = "PAL-N",
 431                 .Fsc            = 35468950,
 432                 .swidth         = 768,
 433                 .sheight        = 576,
 434                 .totalwidth     = 1135,
 435                 .adelay         = 0x7f,
 436                 .bdelay         = 0x72,
 437                 .iform          = (BT848_IFORM_PAL_N|BT848_IFORM_XT1),
 438                 .scaledtwidth   = 944,
 439                 .hdelayx1       = 186,
 440                 .hactivex1      = 922,
 441                 .vdelay         = 0x20,
 442                 .vbipack        = 144,
 443                 .sram           = -1,
 444                 .vbistart       = { 7, 320 },
 445                 CROPCAP(/* minhdelayx1 */ 68,
 446                         /* hdelayx1 */ 186,
 447                         /* swidth */ (768 * 1135 + 944 / 2) / 944,
 448                         /* totalwidth */ 1135,
 449                         /* sqwidth */ 944,
 450                         /* vdelay */ 0x20,
 451                         /* sheight */ 576,
 452                         /* extraheight */ 0,
 453                         /* videostart0 */ 23)
 454         },{
 455                 .v4l2_id        = V4L2_STD_NTSC_M_JP,
 456                 .name           = "NTSC-JP",
 457                 .Fsc            = 28636363,
 458                 .swidth         = 640,
 459                 .sheight        = 480,
 460                 .totalwidth     = 910,
 461                 .adelay         = 0x68,
 462                 .bdelay         = 0x5d,
 463                 .iform          = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0),
 464                 .scaledtwidth   = 780,
 465                 .hdelayx1       = 135,
 466                 .hactivex1      = 754,
 467                 .vdelay         = 0x16,
 468                 .vbipack        = 144,
 469                 .sram           = -1,
 470                 .vbistart       = { 10, 273 },
 471                 CROPCAP(/* minhdelayx1 */ 68,
 472                         /* hdelayx1 */ 135,
 473                         /* swidth */ (640 * 910 + 780 / 2) / 780,
 474                         /* totalwidth */ 910,
 475                         /* sqwidth */ 780,
 476                         /* vdelay */ 0x16,
 477                         /* sheight */ 480,
 478                         /* extraheight */ 0,
 479                         /* videostart0 */ 23)
 480         },{
 481                 /* that one hopefully works with the strange timing
 482                  * which video recorders produce when playing a NTSC
 483                  * tape on a PAL TV ... */
 484                 .v4l2_id        = V4L2_STD_PAL_60,
 485                 .name           = "PAL-60",
 486                 .Fsc            = 35468950,
 487                 .swidth         = 924,
 488                 .sheight        = 480,
 489                 .totalwidth     = 1135,
 490                 .adelay         = 0x7f,
 491                 .bdelay         = 0x72,
 492                 .iform          = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
 493                 .scaledtwidth   = 1135,
 494                 .hdelayx1       = 186,
 495                 .hactivex1      = 924,
 496                 .vdelay         = 0x1a,
 497                 .vbipack        = 255,
 498                 .vtotal         = 524,
 499                 .sram           = -1,
 500                 .vbistart       = { 10, 273 },
 501                 CROPCAP(/* minhdelayx1 */ 68,
 502                         /* hdelayx1 */ 186,
 503                         /* swidth */ 924,
 504                         /* totalwidth */ 1135,
 505                         /* sqwidth */ 944,
 506                         /* vdelay */ 0x1a,
 507                         /* sheight */ 480,
 508                         /* extraheight */ 0,
 509                         /* videostart0 */ 23)
 510         }
 511 };
 512 static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms);
 513
 514 /* ----------------------------------------------------------------------- */
 515 /* bttv format list
 516    packed pixel formats must come first */
 517 static const struct bttv_format formats[] = {
 518         {
 519                 .name     = "8 bpp, gray",
 520                 .fourcc   = V4L2_PIX_FMT_GREY,
 521                 .btformat = BT848_COLOR_FMT_Y8,
 522                 .depth    = 8,
 523                 .flags    = FORMAT_FLAGS_PACKED,
 524         },{
 525                 .name     = "8 bpp, dithered color",
 526                 .fourcc   = V4L2_PIX_FMT_HI240,
 527                 .btformat = BT848_COLOR_FMT_RGB8,
 528                 .depth    = 8,
 529                 .flags    = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER,
 530         },{
 531                 .name     = "15 bpp RGB, le",
 532                 .fourcc   = V4L2_PIX_FMT_RGB555,
 533                 .btformat = BT848_COLOR_FMT_RGB15,
 534                 .depth    = 16,
 535                 .flags    = FORMAT_FLAGS_PACKED,
 536         },{
 537                 .name     = "15 bpp RGB, be",
 538                 .fourcc   = V4L2_PIX_FMT_RGB555X,
 539                 .btformat = BT848_COLOR_FMT_RGB15,
 540                 .btswap   = 0x03, /* byteswap */
 541                 .depth    = 16,
 542                 .flags    = FORMAT_FLAGS_PACKED,
 543         },{
 544                 .name     = "16 bpp RGB, le",
 545                 .fourcc   = V4L2_PIX_FMT_RGB565,
 546                 .btformat = BT848_COLOR_FMT_RGB16,
 547                 .depth    = 16,
 548                 .flags    = FORMAT_FLAGS_PACKED,
 549         },{
 550                 .name     = "16 bpp RGB, be",
 551                 .fourcc   = V4L2_PIX_FMT_RGB565X,
 552                 .btformat = BT848_COLOR_FMT_RGB16,
 553                 .btswap   = 0x03, /* byteswap */
 554                 .depth    = 16,
 555                 .flags    = FORMAT_FLAGS_PACKED,
 556         },{
 557                 .name     = "24 bpp RGB, le",
 558                 .fourcc   = V4L2_PIX_FMT_BGR24,
 559                 .btformat = BT848_COLOR_FMT_RGB24,
 560                 .depth    = 24,
 561                 .flags    = FORMAT_FLAGS_PACKED,
 562         },{
 563                 .name     = "32 bpp RGB, le",
 564                 .fourcc   = V4L2_PIX_FMT_BGR32,
 565                 .btformat = BT848_COLOR_FMT_RGB32,
 566                 .depth    = 32,
 567                 .flags    = FORMAT_FLAGS_PACKED,
 568         },{
 569                 .name     = "32 bpp RGB, be",
 570                 .fourcc   = V4L2_PIX_FMT_RGB32,
 571                 .btformat = BT848_COLOR_FMT_RGB32,
 572                 .btswap   = 0x0f, /* byte+word swap */
 573                 .depth    = 32,
 574                 .flags    = FORMAT_FLAGS_PACKED,
 575         },{
 576                 .name     = "4:2:2, packed, YUYV",
 577                 .fourcc   = V4L2_PIX_FMT_YUYV,
 578                 .btformat = BT848_COLOR_FMT_YUY2,
 579                 .depth    = 16,
 580                 .flags    = FORMAT_FLAGS_PACKED,
 581         },{
 582                 .name     = "4:2:2, packed, UYVY",
 583                 .fourcc   = V4L2_PIX_FMT_UYVY,
 584                 .btformat = BT848_COLOR_FMT_YUY2,
 585                 .btswap   = 0x03, /* byteswap */
 586                 .depth    = 16,
 587                 .flags    = FORMAT_FLAGS_PACKED,
 588         },{
 589                 .name     = "4:2:2, planar, Y-Cb-Cr",
 590                 .fourcc   = V4L2_PIX_FMT_YUV422P,
 591                 .btformat = BT848_COLOR_FMT_YCrCb422,
 592                 .depth    = 16,
 593                 .flags    = FORMAT_FLAGS_PLANAR,
 594                 .hshift   = 1,
 595                 .vshift   = 0,
 596         },{
 597                 .name     = "4:2:0, planar, Y-Cb-Cr",
 598                 .fourcc   = V4L2_PIX_FMT_YUV420,
 599                 .btformat = BT848_COLOR_FMT_YCrCb422,
 600                 .depth    = 12,
 601                 .flags    = FORMAT_FLAGS_PLANAR,
 602                 .hshift   = 1,
 603                 .vshift   = 1,
 604         },{
 605                 .name     = "4:2:0, planar, Y-Cr-Cb",
 606                 .fourcc   = V4L2_PIX_FMT_YVU420,
 607                 .btformat = BT848_COLOR_FMT_YCrCb422,
 608                 .depth    = 12,
 609                 .flags    = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
 610                 .hshift   = 1,
 611                 .vshift   = 1,
 612         },{
 613                 .name     = "4:1:1, planar, Y-Cb-Cr",
 614                 .fourcc   = V4L2_PIX_FMT_YUV411P,
 615                 .btformat = BT848_COLOR_FMT_YCrCb411,
 616                 .depth    = 12,
 617                 .flags    = FORMAT_FLAGS_PLANAR,
 618                 .hshift   = 2,
 619                 .vshift   = 0,
 620         },{
 621                 .name     = "4:1:0, planar, Y-Cb-Cr",
 622                 .fourcc   = V4L2_PIX_FMT_YUV410,
 623                 .btformat = BT848_COLOR_FMT_YCrCb411,
 624                 .depth    = 9,
 625                 .flags    = FORMAT_FLAGS_PLANAR,
 626                 .hshift   = 2,
 627                 .vshift   = 2,
 628         },{
 629                 .name     = "4:1:0, planar, Y-Cr-Cb",
 630                 .fourcc   = V4L2_PIX_FMT_YVU410,
 631                 .btformat = BT848_COLOR_FMT_YCrCb411,
 632                 .depth    = 9,
 633                 .flags    = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
 634                 .hshift   = 2,
 635                 .vshift   = 2,
 636         },{
 637                 .name     = "raw scanlines",
 638                 .fourcc   = -1,
 639                 .btformat = BT848_COLOR_FMT_RAW,
 640                 .depth    = 8,
 641                 .flags    = FORMAT_FLAGS_RAW,
 642         }
 643 };
 644 static const unsigned int FORMATS = ARRAY_SIZE(formats);
 645
 646 /* ----------------------------------------------------------------------- */
 647 /* resource management                                                     */
 648
 649 /*
 650    RESOURCE_    allocated by                freed by
 651
 652    VIDEO_READ   bttv_read 1)                bttv_read 2)
 653
 654    VIDEO_STREAM VIDIOC_STREAMON             VIDIOC_STREAMOFF
 655                  VIDIOC_QBUF 1)              bttv_release
 656                  VIDIOCMCAPTURE 1)
 657
 658    OVERLAY       VIDIOCCAPTURE on            VIDIOCCAPTURE off
 659                  VIDIOC_OVERLAY on           VIDIOC_OVERLAY off
 660                  3)                          bttv_release
 661
 662    VBI           VIDIOC_STREAMON             VIDIOC_STREAMOFF
 663                  VIDIOC_QBUF 1)              bttv_release
 664                  bttv_read, bttv_poll 1) 4)
 665
 666    1) The resource must be allocated when we enter buffer prepare functions
 667       and remain allocated while buffers are in the DMA queue.
 668    2) This is a single frame read.
 669    3) VIDIOC_S_FBUF and VIDIOC_S_FMT (OVERLAY) still work when
 670       RESOURCE_OVERLAY is allocated.
 671    4) This is a continuous read, implies VIDIOC_STREAMON.
 672
 673    Note this driver permits video input and standard changes regardless if
 674    resources are allocated.
 675 */
 676
 677 #define VBI_RESOURCES (RESOURCE_VBI)
 678 #define VIDEO_RESOURCES (RESOURCE_VIDEO_READ | \
 679                          RESOURCE_VIDEO_STREAM | \
 680                          RESOURCE_OVERLAY)
 681
 682 static
 683 int check_alloc_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bit)
 684 {
 685         int xbits; /* mutual exclusive resources */
 686
 687         if (fh->resources & bit)
 688                 /* have it already allocated */
 689                 return 1;
 690
 691         xbits = bit;
 692         if (bit & (RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM))
 693                 xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM;
 694
 695         /* is it free? */
 696         if (btv->resources & xbits) {
 697                 /* no, someone else uses it */
 698                 goto fail;
 699         }
 700
 701         if ((bit & VIDEO_RESOURCES)
 702             && 0 == (btv->resources & VIDEO_RESOURCES)) {
 703                 /* Do crop - use current, don't - use default parameters. */
 704                 __s32 top = btv->crop[!!fh->do_crop].rect.top;
 705
 706                 if (btv->vbi_end > top)
 707                         goto fail;
 708
 709                 /* We cannot capture the same line as video and VBI data.
 710                    Claim scan lines crop[].rect.top to bottom. */
 711                 btv->crop_start = top;
 712         } else if (bit & VBI_RESOURCES) {
 713                 __s32 end = fh->vbi_fmt.end;
 714
 715                 if (end > btv->crop_start)
 716                         goto fail;
 717
 718                 /* Claim scan lines above fh->vbi_fmt.end. */
 719                 btv->vbi_end = end;
 720         }
 721
 722         /* it's free, grab it */
 723         fh->resources  |= bit;
 724         btv->resources |= bit;
 725         return 1;
 726
 727  fail:
 728         return 0;
 729 }
 730
 731 static
 732 int check_btres(struct bttv_fh *fh, int bit)
 733 {
 734         return (fh->resources & bit);
 735 }
 736
 737 static
 738 int locked_btres(struct bttv *btv, int bit)
 739 {
 740         return (btv->resources & bit);
 741 }
 742
 743 /* Call with btv->lock down. */
 744 static void
 745 disclaim_vbi_lines(struct bttv *btv)
 746 {
 747         btv->vbi_end = 0;
 748 }
 749
 750 /* Call with btv->lock down. */
 751 static void
 752 disclaim_video_lines(struct bttv *btv)
 753 {
 754         const struct bttv_tvnorm *tvnorm;
 755         u8 crop;
 756
 757         tvnorm = &bttv_tvnorms[btv->tvnorm];
 758         btv->crop_start = tvnorm->cropcap.bounds.top
 759                 + tvnorm->cropcap.bounds.height;
 760
 761         /* VBI capturing ends at VDELAY, start of video capturing, no
 762            matter how many lines the VBI RISC program expects. When video
 763            capturing is off, it shall no longer "preempt" VBI capturing,
 764            so we set VDELAY to maximum. */
 765         crop = btread(BT848_E_CROP) | 0xc0;
 766         btwrite(crop, BT848_E_CROP);
 767         btwrite(0xfe, BT848_E_VDELAY_LO);
 768         btwrite(crop, BT848_O_CROP);
 769         btwrite(0xfe, BT848_O_VDELAY_LO);
 770 }
 771
 772 static
 773 void free_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bits)
 774 {
 775         if ((fh->resources & bits) != bits) {
 776                 /* trying to free resources not allocated by us ... */
 777                 pr_err("BUG! (btres)\n");
 778         }
 779         fh->resources  &= ~bits;
 780         btv->resources &= ~bits;
 781
 782         bits = btv->resources;
 783
 784         if (0 == (bits & VIDEO_RESOURCES))
 785                 disclaim_video_lines(btv);
 786
 787         if (0 == (bits & VBI_RESOURCES))
 788                 disclaim_vbi_lines(btv);
 789 }
 790
 791 /* ----------------------------------------------------------------------- */
 792 /* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC          */
 793
 794 /* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C
 795    PLL_X = Reference pre-divider (0=1, 1=2)
 796    PLL_C = Post divider (0=6, 1=4)
 797    PLL_I = Integer input
 798    PLL_F = Fractional input
 799
 800    F_input = 28.636363 MHz:
 801    PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0
 802 */
 803
 804 static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout)
 805 {
 806         unsigned char fl, fh, fi;
 807
 808         /* prevent overflows */
 809         fin/=4;
 810         fout/=4;
 811
 812         fout*=12;
 813         fi=fout/fin;
 814
 815         fout=(fout%fin)*256;
 816         fh=fout/fin;
 817
 818         fout=(fout%fin)*256;
 819         fl=fout/fin;
 820
 821         btwrite(fl, BT848_PLL_F_LO);
 822         btwrite(fh, BT848_PLL_F_HI);
 823         btwrite(fi|BT848_PLL_X, BT848_PLL_XCI);
 824 }
 825
 826 static void set_pll(struct bttv *btv)
 827 {
 828         int i;
 829
 830         if (!btv->pll.pll_crystal)
 831                 return;
 832
 833         if (btv->pll.pll_ofreq == btv->pll.pll_current) {
 834                 dprintk("%d: PLL: no change required\n", btv->c.nr);
 835                 return;
 836         }
 837
 838         if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) {
 839                 /* no PLL needed */
 840                 if (btv->pll.pll_current == 0)
 841                         return;
 842                 if (bttv_verbose)
 843                         pr_info("%d: PLL can sleep, using XTAL (%d)\n",
 844                                 btv->c.nr, btv->pll.pll_ifreq);
 845                 btwrite(0x00,BT848_TGCTRL);
 846                 btwrite(0x00,BT848_PLL_XCI);
 847                 btv->pll.pll_current = 0;
 848                 return;
 849         }
 850
 851         if (bttv_verbose)
 852                 pr_info("%d: Setting PLL: %d => %d (needs up to 100ms)\n",
 853                         btv->c.nr,
 854                         btv->pll.pll_ifreq, btv->pll.pll_ofreq);
 855         set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq);
 856
 857         for (i=0; i<10; i++) {
 858                 /*  Let other people run while the PLL stabilizes */
 859                 msleep(10);
 860
 861                 if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) {
 862                         btwrite(0,BT848_DSTATUS);
 863                 } else {
 864                         btwrite(0x08,BT848_TGCTRL);
 865                         btv->pll.pll_current = btv->pll.pll_ofreq;
 866                         if (bttv_verbose)
 867                                 pr_info("PLL set ok\n");
 868                         return;
 869                 }
 870         }
 871         btv->pll.pll_current = -1;
 872         if (bttv_verbose)
 873                 pr_info("Setting PLL failed\n");
 874         return;
 875 }
 876
 877 /* used to switch between the bt848's analog/digital video capture modes */
 878 static void bt848A_set_timing(struct bttv *btv)
 879 {
 880         int i, len;
 881         int table_idx = bttv_tvnorms[btv->tvnorm].sram;
 882         int fsc       = bttv_tvnorms[btv->tvnorm].Fsc;
 883
 884         if (btv->input == btv->dig) {
 885                 dprintk("%d: load digital timing table (table_idx=%d)\n",
 886                         btv->c.nr,table_idx);
 887
 888                 /* timing change...reset timing generator address */
 889                 btwrite(0x00, BT848_TGCTRL);
 890                 btwrite(0x02, BT848_TGCTRL);
 891                 btwrite(0x00, BT848_TGCTRL);
 892
 893                 len=SRAM_Table[table_idx][0];
 894                 for(i = 1; i <= len; i++)
 895                         btwrite(SRAM_Table[table_idx][i],BT848_TGLB);
 896                 btv->pll.pll_ofreq = 27000000;
 897
 898                 set_pll(btv);
 899                 btwrite(0x11, BT848_TGCTRL);
 900                 btwrite(0x41, BT848_DVSIF);
 901         } else {
 902                 btv->pll.pll_ofreq = fsc;
 903                 set_pll(btv);
 904                 btwrite(0x0, BT848_DVSIF);
 905         }
 906 }
 907
 908 /* ----------------------------------------------------------------------- */
 909
 910 static void bt848_bright(struct bttv *btv, int bright)
 911 {
 912         int value;
 913
 914         // printk("set bright: %d\n", bright); // DEBUG
 915         btv->bright = bright;
 916
 917         /* We want -128 to 127 we get 0-65535 */
 918         value = (bright >> 8) - 128;
 919         btwrite(value & 0xff, BT848_BRIGHT);
 920 }
 921
 922 static void bt848_hue(struct bttv *btv, int hue)
 923 {
 924         int value;
 925
 926         btv->hue = hue;
 927
 928         /* -128 to 127 */
 929         value = (hue >> 8) - 128;
 930         btwrite(value & 0xff, BT848_HUE);
 931 }
 932
 933 static void bt848_contrast(struct bttv *btv, int cont)
 934 {
 935         int value,hibit;
 936
 937         btv->contrast = cont;
 938
 939         /* 0-511 */
 940         value = (cont  >> 7);
 941         hibit = (value >> 6) & 4;
 942         btwrite(value & 0xff, BT848_CONTRAST_LO);
 943         btaor(hibit, ~4, BT848_E_CONTROL);
 944         btaor(hibit, ~4, BT848_O_CONTROL);
 945 }
 946
 947 static void bt848_sat(struct bttv *btv, int color)
 948 {
 949         int val_u,val_v,hibits;
 950
 951         btv->saturation = color;
 952
 953         /* 0-511 for the color */
 954         val_u   = ((color * btv->opt_uv_ratio) / 50) >> 7;
 955         val_v   = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254;
 956         hibits  = (val_u >> 7) & 2;
 957         hibits |= (val_v >> 8) & 1;
 958         btwrite(val_u & 0xff, BT848_SAT_U_LO);
 959         btwrite(val_v & 0xff, BT848_SAT_V_LO);
 960         btaor(hibits, ~3, BT848_E_CONTROL);
 961         btaor(hibits, ~3, BT848_O_CONTROL);
 962 }
 963
 964 /* ----------------------------------------------------------------------- */
 965
 966 static int
 967 video_mux(struct bttv *btv, unsigned int input)
 968 {
 969         int mux,mask2;
 970
 971         if (input >= bttv_tvcards[btv->c.type].video_inputs)
 972                 return -EINVAL;
 973
 974         /* needed by RemoteVideo MX */
 975         mask2 = bttv_tvcards[btv->c.type].gpiomask2;
 976         if (mask2)
 977                 gpio_inout(mask2,mask2);
 978
 979         if (input == btv->svhs)  {
 980                 btor(BT848_CONTROL_COMP, BT848_E_CONTROL);
 981                 btor(BT848_CONTROL_COMP, BT848_O_CONTROL);
 982         } else {
 983                 btand(~BT848_CONTROL_COMP, BT848_E_CONTROL);
 984                 btand(~BT848_CONTROL_COMP, BT848_O_CONTROL);
 985         }
 986         mux = bttv_muxsel(btv, input);
 987         btaor(mux<<5, ~(3<<5), BT848_IFORM);
 988         dprintk("%d: video mux: input=%d mux=%d\n", btv->c.nr, input, mux);
 989
 990         /* card specific hook */
 991         if(bttv_tvcards[btv->c.type].muxsel_hook)
 992                 bttv_tvcards[btv->c.type].muxsel_hook (btv, input);
 993         return 0;
 994 }
 995
 996 static char *audio_modes[] = {
 997         "audio: tuner", "audio: radio", "audio: extern",
 998         "audio: intern", "audio: mute"
 999 };
1000
1001 static void
1002 audio_mux_gpio(struct bttv *btv, int input, int mute)
1003 {
1004         int gpio_val, signal, mute_gpio;
1005
1006         gpio_inout(bttv_tvcards[btv->c.type].gpiomask,
1007                    bttv_tvcards[btv->c.type].gpiomask);
1008         signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC;
1009
1010         /* automute */
1011         mute_gpio = mute || (btv->opt_automute && (!signal || !btv->users)
1012                                 && !btv->has_radio_tuner);
1013
1014         if (mute_gpio)
1015                 gpio_val = bttv_tvcards[btv->c.type].gpiomute;
1016         else
1017                 gpio_val = bttv_tvcards[btv->c.type].gpiomux[input];
1018
1019         switch (btv->c.type) {
1020         case BTTV_BOARD_VOODOOTV_FM:
1021         case BTTV_BOARD_VOODOOTV_200:
1022                 gpio_val = bttv_tda9880_setnorm(btv, gpio_val);
1023                 break;
1024
1025         default:
1026                 gpio_bits(bttv_tvcards[btv->c.type].gpiomask, gpio_val);
1027         }
1028
1029         if (bttv_gpio)
1030                 bttv_gpio_tracking(btv, audio_modes[mute_gpio ? 4 : input]);
1031 }
1032
1033 static int
1034 audio_mute(struct bttv *btv, int mute)
1035 {
1036         struct v4l2_ctrl *ctrl;
1037
1038         audio_mux_gpio(btv, btv->audio_input, mute);
1039
1040         if (btv->sd_msp34xx) {
1041                 ctrl = v4l2_ctrl_find(btv->sd_msp34xx->ctrl_handler, V4L2_CID_AUDIO_MUTE);
1042                 if (ctrl)
1043                         v4l2_ctrl_s_ctrl(ctrl, mute);
1044         }
1045         if (btv->sd_tvaudio) {
1046                 ctrl = v4l2_ctrl_find(btv->sd_tvaudio->ctrl_handler, V4L2_CID_AUDIO_MUTE);
1047                 if (ctrl)
1048                         v4l2_ctrl_s_ctrl(ctrl, mute);
1049         }
1050         if (btv->sd_tda7432) {
1051                 ctrl = v4l2_ctrl_find(btv->sd_tda7432->ctrl_handler, V4L2_CID_AUDIO_MUTE);
1052                 if (ctrl)
1053                         v4l2_ctrl_s_ctrl(ctrl, mute);
1054         }
1055         return 0;
1056 }
1057
1058 static int
1059 audio_input(struct bttv *btv, int input)
1060 {
1061         audio_mux_gpio(btv, input, btv->mute);
1062
1063         if (btv->sd_msp34xx) {
1064                 u32 in;
1065
1066                 /* Note: the inputs tuner/radio/extern/intern are translated
1067                    to msp routings. This assumes common behavior for all msp3400
1068                    based TV cards. When this assumption fails, then the
1069                    specific MSP routing must be added to the card table.
1070                    For now this is sufficient. */
1071                 switch (input) {
1072                 case TVAUDIO_INPUT_RADIO:
1073                         /* Some boards need the msp do to the radio demod */
1074                         if (btv->radio_uses_msp_demodulator) {
1075                                 in = MSP_INPUT_DEFAULT;
1076                                 break;
1077                         }
1078                         in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1079                                     MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1080                         break;
1081                 case TVAUDIO_INPUT_EXTERN:
1082                         in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1,
1083                                     MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1084                         break;
1085                 case TVAUDIO_INPUT_INTERN:
1086                         /* Yes, this is the same input as for RADIO. I doubt
1087                            if this is ever used. The only board with an INTERN
1088                            input is the BTTV_BOARD_AVERMEDIA98. I wonder how
1089                            that was tested. My guess is that the whole INTERN
1090                            input does not work. */
1091                         in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1092                                     MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1093                         break;
1094                 case TVAUDIO_INPUT_TUNER:
1095                 default:
1096                         /* This is the only card that uses TUNER2, and afaik,
1097                            is the only difference between the VOODOOTV_FM
1098                            and VOODOOTV_200 */
1099                         if (btv->c.type == BTTV_BOARD_VOODOOTV_200)
1100                                 in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER2, \
1101                                         MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER);
1102                         else
1103                                 in = MSP_INPUT_DEFAULT;
1104                         break;
1105                 }
1106                 v4l2_subdev_call(btv->sd_msp34xx, audio, s_routing,
1107                                in, MSP_OUTPUT_DEFAULT, 0);
1108         }
1109         if (btv->sd_tvaudio) {
1110                 v4l2_subdev_call(btv->sd_tvaudio, audio, s_routing,
1111                                  input, 0, 0);
1112         }
1113         return 0;
1114 }
1115
1116 static void
1117 bttv_crop_calc_limits(struct bttv_crop *c)
1118 {
1119         /* Scale factor min. 1:1, max. 16:1. Min. image size
1120            48 x 32. Scaled width must be a multiple of 4. */
1121
1122         if (1) {
1123                 /* For bug compatibility with VIDIOCGCAP and image
1124                    size checks in earlier driver versions. */
1125                 c->min_scaled_width = 48;
1126                 c->min_scaled_height = 32;
1127         } else {
1128                 c->min_scaled_width =
1129                         (max_t(unsigned int, 48, c->rect.width >> 4) + 3) & ~3;
1130                 c->min_scaled_height =
1131                         max_t(unsigned int, 32, c->rect.height >> 4);
1132         }
1133
1134         c->max_scaled_width  = c->rect.width & ~3;
1135         c->max_scaled_height = c->rect.height;
1136 }
1137
1138 static void
1139 bttv_crop_reset(struct bttv_crop *c, unsigned int norm)
1140 {
1141         c->rect = bttv_tvnorms[norm].cropcap.defrect;
1142         bttv_crop_calc_limits(c);
1143 }
1144
1145 /* Call with btv->lock down. */
1146 static int
1147 set_tvnorm(struct bttv *btv, unsigned int norm)
1148 {
1149         const struct bttv_tvnorm *tvnorm;
1150         v4l2_std_id id;
1151
1152         BUG_ON(norm >= BTTV_TVNORMS);
1153         BUG_ON(btv->tvnorm >= BTTV_TVNORMS);
1154
1155         tvnorm = &bttv_tvnorms[norm];
1156
1157         if (memcmp(&bttv_tvnorms[btv->tvnorm].cropcap, &tvnorm->cropcap,
1158                     sizeof (tvnorm->cropcap))) {
1159                 bttv_crop_reset(&btv->crop[0], norm);
1160                 btv->crop[1] = btv->crop[0]; /* current = default */
1161
1162                 if (0 == (btv->resources & VIDEO_RESOURCES)) {
1163                         btv->crop_start = tvnorm->cropcap.bounds.top
1164                                 + tvnorm->cropcap.bounds.height;
1165                 }
1166         }
1167
1168         btv->tvnorm = norm;
1169
1170         btwrite(tvnorm->adelay, BT848_ADELAY);
1171         btwrite(tvnorm->bdelay, BT848_BDELAY);
1172         btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH),
1173               BT848_IFORM);
1174         btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE);
1175         btwrite(1, BT848_VBI_PACK_DEL);
1176         bt848A_set_timing(btv);
1177
1178         switch (btv->c.type) {
1179         case BTTV_BOARD_VOODOOTV_FM:
1180         case BTTV_BOARD_VOODOOTV_200:
1181                 bttv_tda9880_setnorm(btv, gpio_read());
1182                 break;
1183         }
1184         id = tvnorm->v4l2_id;
1185         bttv_call_all(btv, video, s_std, id);
1186
1187         return 0;
1188 }
1189
1190 /* Call with btv->lock down. */
1191 static void
1192 set_input(struct bttv *btv, unsigned int input, unsigned int norm)
1193 {
1194         unsigned long flags;
1195
1196         btv->input = input;
1197         if (irq_iswitch) {
1198                 spin_lock_irqsave(&btv->s_lock,flags);
1199                 if (btv->curr.frame_irq) {
1200                         /* active capture -> delayed input switch */
1201                         btv->new_input = input;
1202                 } else {
1203                         video_mux(btv,input);
1204                 }
1205                 spin_unlock_irqrestore(&btv->s_lock,flags);
1206         } else {
1207                 video_mux(btv,input);
1208         }
1209         btv->audio_input = (btv->tuner_type != TUNER_ABSENT && input == 0) ?
1210                                 TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN;
1211         audio_input(btv, btv->audio_input);
1212         set_tvnorm(btv, norm);
1213 }
1214
1215 static void init_irqreg(struct bttv *btv)
1216 {
1217         /* clear status */
1218         btwrite(0xfffffUL, BT848_INT_STAT);
1219
1220         if (bttv_tvcards[btv->c.type].no_video) {
1221                 /* i2c only */
1222                 btwrite(BT848_INT_I2CDONE,
1223                         BT848_INT_MASK);
1224         } else {
1225                 /* full video */
1226                 btwrite((btv->triton1)  |
1227                         (btv->gpioirq ? BT848_INT_GPINT : 0) |
1228                         BT848_INT_SCERR |
1229                         (fdsr ? BT848_INT_FDSR : 0) |
1230                         BT848_INT_RISCI | BT848_INT_OCERR |
1231                         BT848_INT_FMTCHG|BT848_INT_HLOCK|
1232                         BT848_INT_I2CDONE,
1233                         BT848_INT_MASK);
1234         }
1235 }
1236
1237 static void init_bt848(struct bttv *btv)
1238 {
1239         if (bttv_tvcards[btv->c.type].no_video) {
1240                 /* very basic init only */
1241                 init_irqreg(btv);
1242                 return;
1243         }
1244
1245         btwrite(0x00, BT848_CAP_CTL);
1246         btwrite(BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL);
1247         btwrite(BT848_IFORM_XTAUTO | BT848_IFORM_AUTO, BT848_IFORM);
1248
1249         /* set planar and packed mode trigger points and         */
1250         /* set rising edge of inverted GPINTR pin as irq trigger */
1251         btwrite(BT848_GPIO_DMA_CTL_PKTP_32|
1252                 BT848_GPIO_DMA_CTL_PLTP1_16|
1253                 BT848_GPIO_DMA_CTL_PLTP23_16|
1254                 BT848_GPIO_DMA_CTL_GPINTC|
1255                 BT848_GPIO_DMA_CTL_GPINTI,
1256                 BT848_GPIO_DMA_CTL);
1257
1258         btwrite(0x20, BT848_E_VSCALE_HI);
1259         btwrite(0x20, BT848_O_VSCALE_HI);
1260
1261         v4l2_ctrl_handler_setup(&btv->ctrl_handler);
1262
1263         /* interrupt */
1264         init_irqreg(btv);
1265 }
1266
1267 static void bttv_reinit_bt848(struct bttv *btv)
1268 {
1269         unsigned long flags;
1270
1271         if (bttv_verbose)
1272                 pr_info("%d: reset, reinitialize\n", btv->c.nr);
1273         spin_lock_irqsave(&btv->s_lock,flags);
1274         btv->errors=0;
1275         bttv_set_dma(btv,0);
1276         spin_unlock_irqrestore(&btv->s_lock,flags);
1277
1278         init_bt848(btv);
1279         btv->pll.pll_current = -1;
1280         set_input(btv, btv->input, btv->tvnorm);
1281 }
1282
1283 static int bttv_s_ctrl(struct v4l2_ctrl *c)
1284 {
1285         struct bttv *btv = container_of(c->handler, struct bttv, ctrl_handler);
1286         int val;
1287
1288         switch (c->id) {
1289         case V4L2_CID_BRIGHTNESS:
1290                 bt848_bright(btv, c->val);
1291                 break;
1292         case V4L2_CID_HUE:
1293                 bt848_hue(btv, c->val);
1294                 break;
1295         case V4L2_CID_CONTRAST:
1296                 bt848_contrast(btv, c->val);
1297                 break;
1298         case V4L2_CID_SATURATION:
1299                 bt848_sat(btv, c->val);
1300                 break;
1301         case V4L2_CID_COLOR_KILLER:
1302                 if (c->val) {
1303                         btor(BT848_SCLOOP_CKILL, BT848_E_SCLOOP);
1304                         btor(BT848_SCLOOP_CKILL, BT848_O_SCLOOP);
1305                 } else {
1306                         btand(~BT848_SCLOOP_CKILL, BT848_E_SCLOOP);
1307                         btand(~BT848_SCLOOP_CKILL, BT848_O_SCLOOP);
1308                 }
1309                 break;
1310         case V4L2_CID_AUDIO_MUTE:
1311                 audio_mute(btv, c->val);
1312                 btv->mute = c->val;
1313                 break;
1314         case V4L2_CID_AUDIO_VOLUME:
1315                 btv->volume_gpio(btv, c->val);
1316                 break;
1317
1318         case V4L2_CID_CHROMA_AGC:
1319                 val = c->val ? BT848_SCLOOP_CAGC : 0;
1320                 btwrite(val, BT848_E_SCLOOP);
1321                 btwrite(val, BT848_O_SCLOOP);
1322                 break;
1323         case V4L2_CID_PRIVATE_COMBFILTER:
1324                 btv->opt_combfilter = c->val;
1325                 break;
1326         case V4L2_CID_PRIVATE_LUMAFILTER:
1327                 if (c->val) {
1328                         btand(~BT848_CONTROL_LDEC, BT848_E_CONTROL);
1329                         btand(~BT848_CONTROL_LDEC, BT848_O_CONTROL);
1330                 } else {
1331                         btor(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1332                         btor(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1333                 }
1334                 break;
1335         case V4L2_CID_PRIVATE_AUTOMUTE:
1336                 btv->opt_automute = c->val;
1337                 break;
1338         case V4L2_CID_PRIVATE_AGC_CRUSH:
1339                 btwrite(BT848_ADC_RESERVED |
1340                                 (c->val ? BT848_ADC_CRUSH : 0),
1341                                 BT848_ADC);
1342                 break;
1343         case V4L2_CID_PRIVATE_VCR_HACK:
1344                 btv->opt_vcr_hack = c->val;
1345                 break;
1346         case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1347                 btwrite(c->val, BT848_WC_UP);
1348                 break;
1349         case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1350                 btwrite(c->val, BT848_WC_DOWN);
1351                 break;
1352         case V4L2_CID_PRIVATE_UV_RATIO:
1353                 btv->opt_uv_ratio = c->val;
1354                 bt848_sat(btv, btv->saturation);
1355                 break;
1356         case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1357                 btaor((c->val << 7), ~BT848_OFORM_RANGE, BT848_OFORM);
1358                 break;
1359         case V4L2_CID_PRIVATE_CORING:
1360                 btaor((c->val << 5), ~BT848_OFORM_CORE32, BT848_OFORM);
1361                 break;
1362         default:
1363                 return -EINVAL;
1364         }
1365         return 0;
1366 }
1367
1368 /* ----------------------------------------------------------------------- */
1369
1370 static const struct v4l2_ctrl_ops bttv_ctrl_ops = {
1371         .s_ctrl = bttv_s_ctrl,
1372 };
1373
1374 static struct v4l2_ctrl_config bttv_ctrl_combfilter = {
1375         .ops = &bttv_ctrl_ops,
1376         .id = V4L2_CID_PRIVATE_COMBFILTER,
1377         .name = "Comb Filter",
1378         .type = V4L2_CTRL_TYPE_BOOLEAN,
1379         .min = 0,
1380         .max = 1,
1381         .step = 1,
1382         .def = 1,
1383 };
1384
1385 static struct v4l2_ctrl_config bttv_ctrl_automute = {
1386         .ops = &bttv_ctrl_ops,
1387         .id = V4L2_CID_PRIVATE_AUTOMUTE,
1388         .name = "Auto Mute",
1389         .type = V4L2_CTRL_TYPE_BOOLEAN,
1390         .min = 0,
1391         .max = 1,
1392         .step = 1,
1393         .def = 1,
1394 };
1395
1396 static struct v4l2_ctrl_config bttv_ctrl_lumafilter = {
1397         .ops = &bttv_ctrl_ops,
1398         .id = V4L2_CID_PRIVATE_LUMAFILTER,
1399         .name = "Luma Decimation Filter",
1400         .type = V4L2_CTRL_TYPE_BOOLEAN,
1401         .min = 0,
1402         .max = 1,
1403         .step = 1,
1404         .def = 1,
1405 };
1406
1407 static struct v4l2_ctrl_config bttv_ctrl_agc_crush = {
1408         .ops = &bttv_ctrl_ops,
1409         .id = V4L2_CID_PRIVATE_AGC_CRUSH,
1410         .name = "AGC Crush",
1411         .type = V4L2_CTRL_TYPE_BOOLEAN,
1412         .min = 0,
1413         .max = 1,
1414         .step = 1,
1415         .def = 1,
1416 };
1417
1418 static struct v4l2_ctrl_config bttv_ctrl_vcr_hack = {
1419         .ops = &bttv_ctrl_ops,
1420         .id = V4L2_CID_PRIVATE_VCR_HACK,
1421         .name = "VCR Hack",
1422         .type = V4L2_CTRL_TYPE_BOOLEAN,
1423         .min = 0,
1424         .max = 1,
1425         .step = 1,
1426         .def = 1,
1427 };
1428
1429 static struct v4l2_ctrl_config bttv_ctrl_whitecrush_lower = {
1430         .ops = &bttv_ctrl_ops,
1431         .id = V4L2_CID_PRIVATE_WHITECRUSH_LOWER,
1432         .name = "Whitecrush Lower",
1433         .type = V4L2_CTRL_TYPE_INTEGER,
1434         .min = 0,
1435         .max = 255,
1436         .step = 1,
1437         .def = 0x7f,
1438 };
1439
1440 static struct v4l2_ctrl_config bttv_ctrl_whitecrush_upper = {
1441         .ops = &bttv_ctrl_ops,
1442         .id = V4L2_CID_PRIVATE_WHITECRUSH_UPPER,
1443         .name = "Whitecrush Upper",
1444         .type = V4L2_CTRL_TYPE_INTEGER,
1445         .min = 0,
1446         .max = 255,
1447         .step = 1,
1448         .def = 0xcf,
1449 };
1450
1451 static struct v4l2_ctrl_config bttv_ctrl_uv_ratio = {
1452         .ops = &bttv_ctrl_ops,
1453         .id = V4L2_CID_PRIVATE_UV_RATIO,
1454         .name = "UV Ratio",
1455         .type = V4L2_CTRL_TYPE_INTEGER,
1456         .min = 0,
1457         .max = 100,
1458         .step = 1,
1459         .def = 50,
1460 };
1461
1462 static struct v4l2_ctrl_config bttv_ctrl_full_luma = {
1463         .ops = &bttv_ctrl_ops,
1464         .id = V4L2_CID_PRIVATE_FULL_LUMA_RANGE,
1465         .name = "Full Luma Range",
1466         .type = V4L2_CTRL_TYPE_BOOLEAN,
1467         .min = 0,
1468         .max = 1,
1469         .step = 1,
1470 };
1471
1472 static struct v4l2_ctrl_config bttv_ctrl_coring = {
1473         .ops = &bttv_ctrl_ops,
1474         .id = V4L2_CID_PRIVATE_CORING,
1475         .name = "Coring",
1476         .type = V4L2_CTRL_TYPE_INTEGER,
1477         .min = 0,
1478         .max = 3,
1479         .step = 1,
1480 };
1481
1482
1483 /* ----------------------------------------------------------------------- */
1484
1485 void bttv_gpio_tracking(struct bttv *btv, char *comment)
1486 {
1487         unsigned int outbits, data;
1488         outbits = btread(BT848_GPIO_OUT_EN);
1489         data    = btread(BT848_GPIO_DATA);
1490         pr_debug("%d: gpio: en=%08x, out=%08x in=%08x [%s]\n",
1491                  btv->c.nr, outbits, data & outbits, data & ~outbits, comment);
1492 }
1493
1494 static void bttv_field_count(struct bttv *btv)
1495 {
1496         int need_count = 0;
1497
1498         if (btv->users)
1499                 need_count++;
1500
1501         if (need_count) {
1502                 /* start field counter */
1503                 btor(BT848_INT_VSYNC,BT848_INT_MASK);
1504         } else {
1505                 /* stop field counter */
1506                 btand(~BT848_INT_VSYNC,BT848_INT_MASK);
1507                 btv->field_count = 0;
1508         }
1509 }
1510
1511 static const struct bttv_format*
1512 format_by_fourcc(int fourcc)
1513 {
1514         unsigned int i;
1515
1516         for (i = 0; i < FORMATS; i++) {
1517                 if (-1 == formats[i].fourcc)
1518                         continue;
1519                 if (formats[i].fourcc == fourcc)
1520                         return formats+i;
1521         }
1522         return NULL;
1523 }
1524
1525 /* ----------------------------------------------------------------------- */
1526 /* misc helpers                                                            */
1527
1528 static int
1529 bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh,
1530                     struct bttv_buffer *new)
1531 {
1532         struct bttv_buffer *old;
1533         unsigned long flags;
1534
1535         dprintk("switch_overlay: enter [new=%p]\n", new);
1536         if (new)
1537                 new->vb.state = VIDEOBUF_DONE;
1538         spin_lock_irqsave(&btv->s_lock,flags);
1539         old = btv->screen;
1540         btv->screen = new;
1541         btv->loop_irq |= 1;
1542         bttv_set_dma(btv, 0x03);
1543         spin_unlock_irqrestore(&btv->s_lock,flags);
1544         if (NULL != old) {
1545                 dprintk("switch_overlay: old=%p state is %d\n",
1546                         old, old->vb.state);
1547                 bttv_dma_free(&fh->cap,btv, old);
1548                 kfree(old);
1549         }
1550         if (NULL == new)
1551                 free_btres_lock(btv,fh,RESOURCE_OVERLAY);
1552         dprintk("switch_overlay: done\n");
1553         return 0;
1554 }
1555
1556 /* ----------------------------------------------------------------------- */
1557 /* video4linux (1) interface                                               */
1558
1559 static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
1560                                struct bttv_buffer *buf,
1561                                const struct bttv_format *fmt,
1562                                unsigned int width, unsigned int height,
1563                                enum v4l2_field field)
1564 {
1565         struct bttv_fh *fh = q->priv_data;
1566         int redo_dma_risc = 0;
1567         struct bttv_crop c;
1568         int norm;
1569         int rc;
1570
1571         /* check settings */
1572         if (NULL == fmt)
1573                 return -EINVAL;
1574         if (fmt->btformat == BT848_COLOR_FMT_RAW) {
1575                 width  = RAW_BPL;
1576                 height = RAW_LINES*2;
1577                 if (width*height > buf->vb.bsize)
1578                         return -EINVAL;
1579                 buf->vb.size = buf->vb.bsize;
1580
1581                 /* Make sure tvnorm and vbi_end remain consistent
1582                    until we're done. */
1583
1584                 norm = btv->tvnorm;
1585
1586                 /* In this mode capturing always starts at defrect.top
1587                    (default VDELAY), ignoring cropping parameters. */
1588                 if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) {
1589                         return -EINVAL;
1590                 }
1591
1592                 c.rect = bttv_tvnorms[norm].cropcap.defrect;
1593         } else {
1594                 norm = btv->tvnorm;
1595                 c = btv->crop[!!fh->do_crop];
1596
1597                 if (width < c.min_scaled_width ||
1598                     width > c.max_scaled_width ||
1599                     height < c.min_scaled_height)
1600                         return -EINVAL;
1601
1602                 switch (field) {
1603                 case V4L2_FIELD_TOP:
1604                 case V4L2_FIELD_BOTTOM:
1605                 case V4L2_FIELD_ALTERNATE:
1606                         /* btv->crop counts frame lines. Max. scale
1607                            factor is 16:1 for frames, 8:1 for fields. */
1608                         if (height * 2 > c.max_scaled_height)
1609                                 return -EINVAL;
1610                         break;
1611
1612                 default:
1613                         if (height > c.max_scaled_height)
1614                                 return -EINVAL;
1615                         break;
1616                 }
1617
1618                 buf->vb.size = (width * height * fmt->depth) >> 3;
1619                 if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
1620                         return -EINVAL;
1621         }
1622
1623         /* alloc + fill struct bttv_buffer (if changed) */
1624         if (buf->vb.width != width || buf->vb.height != height ||
1625             buf->vb.field != field ||
1626             buf->tvnorm != norm || buf->fmt != fmt ||
1627             buf->crop.top != c.rect.top ||
1628             buf->crop.left != c.rect.left ||
1629             buf->crop.width != c.rect.width ||
1630             buf->crop.height != c.rect.height) {
1631                 buf->vb.width  = width;
1632                 buf->vb.height = height;
1633                 buf->vb.field  = field;
1634                 buf->tvnorm    = norm;
1635                 buf->fmt       = fmt;
1636                 buf->crop      = c.rect;
1637                 redo_dma_risc = 1;
1638         }
1639
1640         /* alloc risc memory */
1641         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
1642                 redo_dma_risc = 1;
1643                 if (0 != (rc = videobuf_iolock(q,&buf->vb,&btv->fbuf)))
1644                         goto fail;
1645         }
1646
1647         if (redo_dma_risc)
1648                 if (0 != (rc = bttv_buffer_risc(btv,buf)))
1649                         goto fail;
1650
1651         buf->vb.state = VIDEOBUF_PREPARED;
1652         return 0;
1653
1654  fail:
1655         bttv_dma_free(q,btv,buf);
1656         return rc;
1657 }
1658
1659 static int
1660 buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
1661 {
1662         struct bttv_fh *fh = q->priv_data;
1663
1664         *size = fh->fmt->depth*fh->width*fh->height >> 3;
1665         if (0 == *count)
1666                 *count = gbuffers;
1667         if (*size * *count > gbuffers * gbufsize)
1668                 *count = (gbuffers * gbufsize) / *size;
1669         return 0;
1670 }
1671
1672 static int
1673 buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
1674                enum v4l2_field field)
1675 {
1676         struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1677         struct bttv_fh *fh = q->priv_data;
1678
1679         return bttv_prepare_buffer(q,fh->btv, buf, fh->fmt,
1680                                    fh->width, fh->height, field);
1681 }
1682
1683 static void
1684 buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
1685 {
1686         struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1687         struct bttv_fh *fh = q->priv_data;
1688         struct bttv    *btv = fh->btv;
1689
1690         buf->vb.state = VIDEOBUF_QUEUED;
1691         list_add_tail(&buf->vb.queue,&btv->capture);
1692         if (!btv->curr.frame_irq) {
1693                 btv->loop_irq |= 1;
1694                 bttv_set_dma(btv, 0x03);
1695         }
1696 }
1697
1698 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
1699 {
1700         struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1701         struct bttv_fh *fh = q->priv_data;
1702
1703         bttv_dma_free(q,fh->btv,buf);
1704 }
1705
1706 static struct videobuf_queue_ops bttv_video_qops = {
1707         .buf_setup    = buffer_setup,
1708         .buf_prepare  = buffer_prepare,
1709         .buf_queue    = buffer_queue,
1710         .buf_release  = buffer_release,
1711 };
1712
1713 static void radio_enable(struct bttv *btv)
1714 {
1715         /* Switch to the radio tuner */
1716         if (!btv->has_radio_tuner) {
1717                 btv->has_radio_tuner = 1;
1718                 bttv_call_all(btv, tuner, s_radio);
1719                 btv->audio_input = TVAUDIO_INPUT_RADIO;
1720                 audio_input(btv, btv->audio_input);
1721         }
1722 }
1723
1724 static int bttv_s_std(struct file *file, void *priv, v4l2_std_id id)
1725 {
1726         struct bttv_fh *fh  = priv;
1727         struct bttv *btv = fh->btv;
1728         unsigned int i;
1729         int err = 0;
1730
1731         for (i = 0; i < BTTV_TVNORMS; i++)
1732                 if (id & bttv_tvnorms[i].v4l2_id)
1733                         break;
1734         if (i == BTTV_TVNORMS) {
1735                 err = -EINVAL;
1736                 goto err;
1737         }
1738
1739         btv->std = id;
1740         set_tvnorm(btv, i);
1741
1742 err:
1743
1744         return err;
1745 }
1746
1747 static int bttv_g_std(struct file *file, void *priv, v4l2_std_id *id)
1748 {
1749         struct bttv_fh *fh  = priv;
1750         struct bttv *btv = fh->btv;
1751
1752         *id = btv->std;
1753         return 0;
1754 }
1755
1756 static int bttv_querystd(struct file *file, void *f, v4l2_std_id *id)
1757 {
1758         struct bttv_fh *fh = f;
1759         struct bttv *btv = fh->btv;
1760
1761         if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML)
1762                 *id &= V4L2_STD_625_50;
1763         else
1764                 *id &= V4L2_STD_525_60;
1765         return 0;
1766 }
1767
1768 static int bttv_enum_input(struct file *file, void *priv,
1769                                         struct v4l2_input *i)
1770 {
1771         struct bttv_fh *fh = priv;
1772         struct bttv *btv = fh->btv;
1773         int rc = 0;
1774
1775         if (i->index >= bttv_tvcards[btv->c.type].video_inputs) {
1776                 rc = -EINVAL;
1777                 goto err;
1778         }
1779
1780         i->type     = V4L2_INPUT_TYPE_CAMERA;
1781         i->audioset = 0;
1782
1783         if (btv->tuner_type != TUNER_ABSENT && i->index == 0) {
1784                 sprintf(i->name, "Television");
1785                 i->type  = V4L2_INPUT_TYPE_TUNER;
1786                 i->tuner = 0;
1787         } else if (i->index == btv->svhs) {
1788                 sprintf(i->name, "S-Video");
1789         } else {
1790                 sprintf(i->name, "Composite%d", i->index);
1791         }
1792
1793         if (i->index == btv->input) {
1794                 __u32 dstatus = btread(BT848_DSTATUS);
1795                 if (0 == (dstatus & BT848_DSTATUS_PRES))
1796                         i->status |= V4L2_IN_ST_NO_SIGNAL;
1797                 if (0 == (dstatus & BT848_DSTATUS_HLOC))
1798                         i->status |= V4L2_IN_ST_NO_H_LOCK;
1799         }
1800
1801         i->std = BTTV_NORMS;
1802
1803 err:
1804
1805         return rc;
1806 }
1807
1808 static int bttv_g_input(struct file *file, void *priv, unsigned int *i)
1809 {
1810         struct bttv_fh *fh = priv;
1811         struct bttv *btv = fh->btv;
1812
1813         *i = btv->input;
1814
1815         return 0;
1816 }
1817
1818 static int bttv_s_input(struct file *file, void *priv, unsigned int i)
1819 {
1820         struct bttv_fh *fh  = priv;
1821         struct bttv *btv = fh->btv;
1822
1823         if (i >= bttv_tvcards[btv->c.type].video_inputs)
1824                 return -EINVAL;
1825
1826         set_input(btv, i, btv->tvnorm);
1827         return 0;
1828 }
1829
1830 static int bttv_s_tuner(struct file *file, void *priv,
1831                                         const struct v4l2_tuner *t)
1832 {
1833         struct bttv_fh *fh  = priv;
1834         struct bttv *btv = fh->btv;
1835
1836         if (t->index)
1837                 return -EINVAL;
1838
1839         bttv_call_all(btv, tuner, s_tuner, t);
1840
1841         if (btv->audio_mode_gpio) {
1842                 struct v4l2_tuner copy = *t;
1843
1844                 btv->audio_mode_gpio(btv, &copy, 1);
1845         }
1846         return 0;
1847 }
1848
1849 static int bttv_g_frequency(struct file *file, void *priv,
1850                                         struct v4l2_frequency *f)
1851 {
1852         struct bttv_fh *fh  = priv;
1853         struct bttv *btv = fh->btv;
1854
1855         if (f->tuner)
1856                 return -EINVAL;
1857
1858         if (f->type == V4L2_TUNER_RADIO)
1859                 radio_enable(btv);
1860         f->frequency = f->type == V4L2_TUNER_RADIO ?
1861                                 btv->radio_freq : btv->tv_freq;
1862
1863         return 0;
1864 }
1865
1866 static void bttv_set_frequency(struct bttv *btv, const struct v4l2_frequency *f)
1867 {
1868         struct v4l2_frequency new_freq = *f;
1869
1870         bttv_call_all(btv, tuner, s_frequency, f);
1871         /* s_frequency may clamp the frequency, so get the actual
1872            frequency before assigning radio/tv_freq. */
1873         bttv_call_all(btv, tuner, g_frequency, &new_freq);
1874         if (new_freq.type == V4L2_TUNER_RADIO) {
1875                 radio_enable(btv);
1876                 btv->radio_freq = new_freq.frequency;
1877                 if (btv->has_tea575x) {
1878                         btv->tea.freq = btv->radio_freq;
1879                         snd_tea575x_set_freq(&btv->tea);
1880                 }
1881         } else {
1882                 btv->tv_freq = new_freq.frequency;
1883         }
1884 }
1885
1886 static int bttv_s_frequency(struct file *file, void *priv,
1887                                         const struct v4l2_frequency *f)
1888 {
1889         struct bttv_fh *fh  = priv;
1890         struct bttv *btv = fh->btv;
1891
1892         if (f->tuner)
1893                 return -EINVAL;
1894
1895         bttv_set_frequency(btv, f);
1896         return 0;
1897 }
1898
1899 static int bttv_log_status(struct file *file, void *f)
1900 {
1901         struct video_device *vdev = video_devdata(file);
1902         struct bttv_fh *fh  = f;
1903         struct bttv *btv = fh->btv;
1904
1905         v4l2_ctrl_handler_log_status(vdev->ctrl_handler, btv->c.v4l2_dev.name);
1906         bttv_call_all(btv, core, log_status);
1907         return 0;
1908 }
1909
1910 #ifdef CONFIG_VIDEO_ADV_DEBUG
1911 static int bttv_g_register(struct file *file, void *f,
1912                                         struct v4l2_dbg_register *reg)
1913 {
1914         struct bttv_fh *fh = f;
1915         struct bttv *btv = fh->btv;
1916
1917         /* bt848 has a 12-bit register space */
1918         reg->reg &= 0xfff;
1919         reg->val = btread(reg->reg);
1920         reg->size = 1;
1921
1922         return 0;
1923 }
1924
1925 static int bttv_s_register(struct file *file, void *f,
1926                                         const struct v4l2_dbg_register *reg)
1927 {
1928         struct bttv_fh *fh = f;
1929         struct bttv *btv = fh->btv;
1930
1931         /* bt848 has a 12-bit register space */
1932         btwrite(reg->val, reg->reg & 0xfff);
1933
1934         return 0;
1935 }
1936 #endif
1937
1938 /* Given cropping boundaries b and the scaled width and height of a
1939    single field or frame, which must not exceed hardware limits, this
1940    function adjusts the cropping parameters c. */
1941 static void
1942 bttv_crop_adjust        (struct bttv_crop *             c,
1943                          const struct v4l2_rect *       b,
1944                          __s32                          width,
1945                          __s32                          height,
1946                          enum v4l2_field                field)
1947 {
1948         __s32 frame_height = height << !V4L2_FIELD_HAS_BOTH(field);
1949         __s32 max_left;
1950         __s32 max_top;
1951
1952         if (width < c->min_scaled_width) {
1953                 /* Max. hor. scale factor 16:1. */
1954                 c->rect.width = width * 16;
1955         } else if (width > c->max_scaled_width) {
1956                 /* Min. hor. scale factor 1:1. */
1957                 c->rect.width = width;
1958
1959                 max_left = b->left + b->width - width;
1960                 max_left = min(max_left, (__s32) MAX_HDELAY);
1961                 if (c->rect.left > max_left)
1962                         c->rect.left = max_left;
1963         }
1964
1965         if (height < c->min_scaled_height) {
1966                 /* Max. vert. scale factor 16:1, single fields 8:1. */
1967                 c->rect.height = height * 16;
1968         } else if (frame_height > c->max_scaled_height) {
1969                 /* Min. vert. scale factor 1:1.
1970                    Top and height count field lines times two. */
1971                 c->rect.height = (frame_height + 1) & ~1;
1972
1973                 max_top = b->top + b->height - c->rect.height;
1974                 if (c->rect.top > max_top)
1975                         c->rect.top = max_top;
1976         }
1977
1978         bttv_crop_calc_limits(c);
1979 }
1980
1981 /* Returns an error if scaling to a frame or single field with the given
1982    width and height is not possible with the current cropping parameters
1983    and width aligned according to width_mask. If adjust_size is TRUE the
1984    function may adjust the width and/or height instead, rounding width
1985    to (width + width_bias) & width_mask. If adjust_crop is TRUE it may
1986    also adjust the current cropping parameters to get closer to the
1987    desired image size. */
1988 static int
1989 limit_scaled_size_lock       (struct bttv_fh *               fh,
1990                          __s32 *                        width,
1991                          __s32 *                        height,
1992                          enum v4l2_field                field,
1993                          unsigned int                   width_mask,
1994                          unsigned int                   width_bias,
1995                          int                            adjust_size,
1996                          int                            adjust_crop)
1997 {
1998         struct bttv *btv = fh->btv;
1999         const struct v4l2_rect *b;
2000         struct bttv_crop *c;
2001         __s32 min_width;
2002         __s32 min_height;
2003         __s32 max_width;
2004         __s32 max_height;
2005         int rc;
2006
2007         BUG_ON((int) width_mask >= 0 ||
2008                width_bias >= (unsigned int) -width_mask);
2009
2010         /* Make sure tvnorm, vbi_end and the current cropping parameters
2011            remain consistent until we're done. */
2012
2013         b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
2014
2015         /* Do crop - use current, don't - use default parameters. */
2016         c = &btv->crop[!!fh->do_crop];
2017
2018         if (fh->do_crop
2019             && adjust_size
2020             && adjust_crop
2021             && !locked_btres(btv, VIDEO_RESOURCES)) {
2022                 min_width = 48;
2023                 min_height = 32;
2024
2025                 /* We cannot scale up. When the scaled image is larger
2026                    than crop.rect we adjust the crop.rect as required
2027                    by the V4L2 spec, hence cropcap.bounds are our limit. */
2028                 max_width = min_t(unsigned int, b->width, MAX_HACTIVE);
2029                 max_height = b->height;
2030
2031                 /* We cannot capture the same line as video and VBI data.
2032                    Note btv->vbi_end is really a minimum, see
2033                    bttv_vbi_try_fmt(). */
2034                 if (btv->vbi_end > b->top) {
2035                         max_height -= btv->vbi_end - b->top;
2036                         rc = -EBUSY;
2037                         if (min_height > max_height)
2038                                 goto fail;
2039                 }
2040         } else {
2041                 rc = -EBUSY;
2042                 if (btv->vbi_end > c->rect.top)
2043                         goto fail;
2044
2045                 min_width  = c->min_scaled_width;
2046                 min_height = c->min_scaled_height;
2047                 max_width  = c->max_scaled_width;
2048                 max_height = c->max_scaled_height;
2049
2050                 adjust_crop = 0;
2051         }
2052
2053         min_width = (min_width - width_mask - 1) & width_mask;
2054         max_width = max_width & width_mask;
2055
2056         /* Max. scale factor is 16:1 for frames, 8:1 for fields. */
2057         min_height = min_height;
2058         /* Min. scale factor is 1:1. */
2059         max_height >>= !V4L2_FIELD_HAS_BOTH(field);
2060
2061         if (adjust_size) {
2062                 *width = clamp(*width, min_width, max_width);
2063                 *height = clamp(*height, min_height, max_height);
2064
2065                 /* Round after clamping to avoid overflow. */
2066                 *width = (*width + width_bias) & width_mask;
2067
2068                 if (adjust_crop) {
2069                         bttv_crop_adjust(c, b, *width, *height, field);
2070
2071                         if (btv->vbi_end > c->rect.top) {
2072                                 /* Move the crop window out of the way. */
2073                                 c->rect.top = btv->vbi_end;
2074                         }
2075                 }
2076         } else {
2077                 rc = -EINVAL;
2078                 if (*width  < min_width ||
2079                     *height < min_height ||
2080                     *width  > max_width ||
2081                     *height > max_height ||
2082                     0 != (*width & ~width_mask))
2083                         goto fail;
2084         }
2085
2086         rc = 0; /* success */
2087
2088  fail:
2089
2090         return rc;
2091 }
2092
2093 /* Returns an error if the given overlay window dimensions are not
2094    possible with the current cropping parameters. If adjust_size is
2095    TRUE the function may adjust the window width and/or height
2096    instead, however it always rounds the horizontal position and
2097    width as btcx_align() does. If adjust_crop is TRUE the function
2098    may also adjust the current cropping parameters to get closer
2099    to the desired window size. */
2100 static int
2101 verify_window_lock(struct bttv_fh *fh, struct v4l2_window *win,
2102                          int adjust_size, int adjust_crop)
2103 {
2104         enum v4l2_field field;
2105         unsigned int width_mask;
2106         int rc;
2107
2108         if (win->w.width < 48)
2109                 win->w.width = 48;
2110         if (win->w.height < 32)
2111                 win->w.height = 32;
2112         if (win->clipcount > 2048)
2113                 win->clipcount = 2048;
2114
2115         win->chromakey = 0;
2116         win->global_alpha = 0;
2117         field = win->field;
2118
2119         switch (field) {
2120         case V4L2_FIELD_TOP:
2121         case V4L2_FIELD_BOTTOM:
2122         case V4L2_FIELD_INTERLACED:
2123                 break;
2124         default:
2125                 field = V4L2_FIELD_ANY;
2126                 break;
2127         }
2128         if (V4L2_FIELD_ANY == field) {
2129                 __s32 height2;
2130
2131                 height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1;
2132                 field = (win->w.height > height2)
2133                         ? V4L2_FIELD_INTERLACED
2134                         : V4L2_FIELD_TOP;
2135         }
2136         win->field = field;
2137
2138         if (NULL == fh->ovfmt)
2139                 return -EINVAL;
2140         /* 4-byte alignment. */
2141         width_mask = ~0;
2142         switch (fh->ovfmt->depth) {
2143         case 8:
2144         case 24:
2145                 width_mask = ~3;
2146                 break;
2147         case 16:
2148                 width_mask = ~1;
2149                 break;
2150         case 32:
2151                 break;
2152         default:
2153                 BUG();
2154         }
2155
2156         win->w.width -= win->w.left & ~width_mask;
2157         win->w.left = (win->w.left - width_mask - 1) & width_mask;
2158
2159         rc = limit_scaled_size_lock(fh, &win->w.width, &win->w.height,
2160                                field, width_mask,
2161                                /* width_bias: round down */ 0,
2162                                adjust_size, adjust_crop);
2163         if (0 != rc)
2164                 return rc;
2165         return 0;
2166 }
2167
2168 static int setup_window_lock(struct bttv_fh *fh, struct bttv *btv,
2169                         struct v4l2_window *win, int fixup)
2170 {
2171         struct v4l2_clip *clips = NULL;
2172         int n,size,retval = 0;
2173
2174         if (NULL == fh->ovfmt)
2175                 return -EINVAL;
2176         if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED))
2177                 return -EINVAL;
2178         retval = verify_window_lock(fh, win,
2179                                /* adjust_size */ fixup,
2180                                /* adjust_crop */ fixup);
2181         if (0 != retval)
2182                 return retval;
2183
2184         /* copy clips  --  luckily v4l1 + v4l2 are binary
2185            compatible here ...*/
2186         n = win->clipcount;
2187         size = sizeof(*clips)*(n+4);
2188         clips = kmalloc(size,GFP_KERNEL);
2189         if (NULL == clips)
2190                 return -ENOMEM;
2191         if (n > 0) {
2192                 if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) {
2193                         kfree(clips);
2194                         return -EFAULT;
2195                 }
2196         }
2197
2198         /* clip against screen */
2199         if (NULL != btv->fbuf.base)
2200                 n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height,
2201                                       &win->w, clips, n);
2202         btcx_sort_clips(clips,n);
2203
2204         /* 4-byte alignments */
2205         switch (fh->ovfmt->depth) {
2206         case 8:
2207         case 24:
2208                 btcx_align(&win->w, clips, n, 3);
2209                 break;
2210         case 16:
2211                 btcx_align(&win->w, clips, n, 1);
2212                 break;
2213         case 32:
2214                 /* no alignment fixups needed */
2215                 break;
2216         default:
2217                 BUG();
2218         }
2219
2220         kfree(fh->ov.clips);
2221         fh->ov.clips    = clips;
2222         fh->ov.nclips   = n;
2223
2224         fh->ov.w        = win->w;
2225         fh->ov.field    = win->field;
2226         fh->ov.setup_ok = 1;
2227
2228         btv->init.ov.w.width   = win->w.width;
2229         btv->init.ov.w.height  = win->w.height;
2230         btv->init.ov.field     = win->field;
2231
2232         /* update overlay if needed */
2233         retval = 0;
2234         if (check_btres(fh, RESOURCE_OVERLAY)) {
2235                 struct bttv_buffer *new;
2236
2237                 new = videobuf_sg_alloc(sizeof(*new));
2238                 new->crop = btv->crop[!!fh->do_crop].rect;
2239                 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2240                 retval = bttv_switch_overlay(btv,fh,new);
2241         }
2242         return retval;
2243 }
2244
2245 /* ----------------------------------------------------------------------- */
2246
2247 static struct videobuf_queue* bttv_queue(struct bttv_fh *fh)
2248 {
2249         struct videobuf_queue* q = NULL;
2250
2251         switch (fh->type) {
2252         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2253                 q = &fh->cap;
2254                 break;
2255         case V4L2_BUF_TYPE_VBI_CAPTURE:
2256                 q = &fh->vbi;
2257                 break;
2258         default:
2259                 BUG();
2260         }
2261         return q;
2262 }
2263
2264 static int bttv_resource(struct bttv_fh *fh)
2265 {
2266         int res = 0;
2267
2268         switch (fh->type) {
2269         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2270                 res = RESOURCE_VIDEO_STREAM;
2271                 break;
2272         case V4L2_BUF_TYPE_VBI_CAPTURE:
2273                 res = RESOURCE_VBI;
2274                 break;
2275         default:
2276                 BUG();
2277         }
2278         return res;
2279 }
2280
2281 static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type)
2282 {
2283         struct videobuf_queue *q = bttv_queue(fh);
2284         int res = bttv_resource(fh);
2285
2286         if (check_btres(fh,res))
2287                 return -EBUSY;
2288         if (videobuf_queue_is_busy(q))
2289                 return -EBUSY;
2290         fh->type = type;
2291         return 0;
2292 }
2293
2294 static void
2295 pix_format_set_size     (struct v4l2_pix_format *       f,
2296                          const struct bttv_format *     fmt,
2297                          unsigned int                   width,
2298                          unsigned int                   height)
2299 {
2300         f->width = width;
2301         f->height = height;
2302
2303         if (fmt->flags & FORMAT_FLAGS_PLANAR) {
2304                 f->bytesperline = width; /* Y plane */
2305                 f->sizeimage = (width * height * fmt->depth) >> 3;
2306         } else {
2307                 f->bytesperline = (width * fmt->depth) >> 3;
2308                 f->sizeimage = height * f->bytesperline;
2309         }
2310 }
2311
2312 static int bttv_g_fmt_vid_cap(struct file *file, void *priv,
2313                                         struct v4l2_format *f)
2314 {
2315         struct bttv_fh *fh  = priv;
2316
2317         pix_format_set_size(&f->fmt.pix, fh->fmt,
2318                                 fh->width, fh->height);
2319         f->fmt.pix.field        = fh->cap.field;
2320         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
2321         f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
2322
2323         return 0;
2324 }
2325
2326 static int bttv_g_fmt_vid_overlay(struct file *file, void *priv,
2327                                         struct v4l2_format *f)
2328 {
2329         struct bttv_fh *fh  = priv;
2330
2331         f->fmt.win.w     = fh->ov.w;
2332         f->fmt.win.field = fh->ov.field;
2333
2334         return 0;
2335 }
2336
2337 static int bttv_try_fmt_vid_cap(struct file *file, void *priv,
2338                                                 struct v4l2_format *f)
2339 {
2340         const struct bttv_format *fmt;
2341         struct bttv_fh *fh = priv;
2342         struct bttv *btv = fh->btv;
2343         enum v4l2_field field;
2344         __s32 width, height;
2345         __s32 height2;
2346         int rc;
2347
2348         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2349         if (NULL == fmt)
2350                 return -EINVAL;
2351
2352         field = f->fmt.pix.field;
2353
2354         switch (field) {
2355         case V4L2_FIELD_TOP:
2356         case V4L2_FIELD_BOTTOM:
2357         case V4L2_FIELD_ALTERNATE:
2358         case V4L2_FIELD_INTERLACED:
2359                 break;
2360         case V4L2_FIELD_SEQ_BT:
2361         case V4L2_FIELD_SEQ_TB:
2362                 if (!(fmt->flags & FORMAT_FLAGS_PLANAR)) {
2363                         field = V4L2_FIELD_SEQ_TB;
2364                         break;
2365                 }
2366                 /* fall through */
2367         default: /* FIELD_ANY case */
2368                 height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
2369                 field = (f->fmt.pix.height > height2)
2370                         ? V4L2_FIELD_INTERLACED
2371                         : V4L2_FIELD_BOTTOM;
2372                 break;
2373         }
2374
2375         width = f->fmt.pix.width;
2376         height = f->fmt.pix.height;
2377
2378         rc = limit_scaled_size_lock(fh, &width, &height, field,
2379                                /* width_mask: 4 pixels */ ~3,
2380                                /* width_bias: nearest */ 2,
2381                                /* adjust_size */ 1,
2382                                /* adjust_crop */ 0);
2383         if (0 != rc)
2384                 return rc;
2385
2386         /* update data for the application */
2387         f->fmt.pix.field = field;
2388         pix_format_set_size(&f->fmt.pix, fmt, width, height);
2389         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
2390
2391         return 0;
2392 }
2393
2394 static int bttv_try_fmt_vid_overlay(struct file *file, void *priv,
2395                                                 struct v4l2_format *f)
2396 {
2397         struct bttv_fh *fh = priv;
2398
2399         verify_window_lock(fh, &f->fmt.win,
2400                         /* adjust_size */ 1,
2401                         /* adjust_crop */ 0);
2402         return 0;
2403 }
2404
2405 static int bttv_s_fmt_vid_cap(struct file *file, void *priv,
2406                                 struct v4l2_format *f)
2407 {
2408         int retval;
2409         const struct bttv_format *fmt;
2410         struct bttv_fh *fh = priv;
2411         struct bttv *btv = fh->btv;
2412         __s32 width, height;
2413         enum v4l2_field field;
2414
2415         retval = bttv_switch_type(fh, f->type);
2416         if (0 != retval)
2417                 return retval;
2418
2419         retval = bttv_try_fmt_vid_cap(file, priv, f);
2420         if (0 != retval)
2421                 return retval;
2422
2423         width = f->fmt.pix.width;
2424         height = f->fmt.pix.height;
2425         field = f->fmt.pix.field;
2426
2427         retval = limit_scaled_size_lock(fh, &width, &height, f->fmt.pix.field,
2428                                /* width_mask: 4 pixels */ ~3,
2429                                /* width_bias: nearest */ 2,
2430                                /* adjust_size */ 1,
2431                                /* adjust_crop */ 1);
2432         if (0 != retval)
2433                 return retval;
2434
2435         f->fmt.pix.field = field;
2436
2437         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2438
2439         /* update our state informations */
2440         fh->fmt              = fmt;
2441         fh->cap.field        = f->fmt.pix.field;
2442         fh->cap.last         = V4L2_FIELD_NONE;
2443         fh->width            = f->fmt.pix.width;
2444         fh->height           = f->fmt.pix.height;
2445         btv->init.fmt        = fmt;
2446         btv->init.width      = f->fmt.pix.width;
2447         btv->init.height     = f->fmt.pix.height;
2448
2449         return 0;
2450 }
2451
2452 static int bttv_s_fmt_vid_overlay(struct file *file, void *priv,
2453                                 struct v4l2_format *f)
2454 {
2455         struct bttv_fh *fh = priv;
2456         struct bttv *btv = fh->btv;
2457
2458         if (no_overlay > 0) {
2459                 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2460                 return -EINVAL;
2461         }
2462
2463         return setup_window_lock(fh, btv, &f->fmt.win, 1);
2464 }
2465
2466 static int bttv_querycap(struct file *file, void  *priv,
2467                                 struct v4l2_capability *cap)
2468 {
2469         struct video_device *vdev = video_devdata(file);
2470         struct bttv_fh *fh = priv;
2471         struct bttv *btv = fh->btv;
2472
2473         if (0 == v4l2)
2474                 return -EINVAL;
2475
2476         strlcpy(cap->driver, "bttv", sizeof(cap->driver));
2477         strlcpy(cap->card, btv->video_dev.name, sizeof(cap->card));
2478         snprintf(cap->bus_info, sizeof(cap->bus_info),
2479                  "PCI:%s", pci_name(btv->c.pci));
2480         cap->capabilities =
2481                 V4L2_CAP_VIDEO_CAPTURE |
2482                 V4L2_CAP_READWRITE |
2483                 V4L2_CAP_STREAMING |
2484                 V4L2_CAP_DEVICE_CAPS;
2485         if (no_overlay <= 0)
2486                 cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
2487         if (video_is_registered(&btv->vbi_dev))
2488                 cap->capabilities |= V4L2_CAP_VBI_CAPTURE;
2489         if (video_is_registered(&btv->radio_dev))
2490                 cap->capabilities |= V4L2_CAP_RADIO;
2491
2492         /*
2493          * No need to lock here: those vars are initialized during board
2494          * probe and remains untouched during the rest of the driver lifecycle
2495          */
2496         if (btv->has_saa6588)
2497                 cap->capabilities |= V4L2_CAP_RDS_CAPTURE;
2498         if (btv->tuner_type != TUNER_ABSENT)
2499                 cap->capabilities |= V4L2_CAP_TUNER;
2500         if (vdev->vfl_type == VFL_TYPE_GRABBER)
2501                 cap->device_caps = cap->capabilities &
2502                         (V4L2_CAP_VIDEO_CAPTURE |
2503                          V4L2_CAP_READWRITE |
2504                          V4L2_CAP_STREAMING |
2505                          V4L2_CAP_VIDEO_OVERLAY |
2506                          V4L2_CAP_TUNER);
2507         else if (vdev->vfl_type == VFL_TYPE_VBI)
2508                 cap->device_caps = cap->capabilities &
2509                         (V4L2_CAP_VBI_CAPTURE |
2510                          V4L2_CAP_READWRITE |
2511                          V4L2_CAP_STREAMING |
2512                          V4L2_CAP_TUNER);
2513         else {
2514                 cap->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
2515                 if (btv->has_saa6588)
2516                         cap->device_caps |= V4L2_CAP_READWRITE |
2517                                                 V4L2_CAP_RDS_CAPTURE;
2518                 if (btv->has_tea575x)
2519                         cap->device_caps |= V4L2_CAP_HW_FREQ_SEEK;
2520         }
2521         return 0;
2522 }
2523
2524 static int bttv_enum_fmt_cap_ovr(struct v4l2_fmtdesc *f)
2525 {
2526         int index = -1, i;
2527
2528         for (i = 0; i < FORMATS; i++) {
2529                 if (formats[i].fourcc != -1)
2530                         index++;
2531                 if ((unsigned int)index == f->index)
2532                         break;
2533         }
2534         if (FORMATS == i)
2535                 return -EINVAL;
2536
2537         f->pixelformat = formats[i].fourcc;
2538         strlcpy(f->description, formats[i].name, sizeof(f->description));
2539
2540         return i;
2541 }
2542
2543 static int bttv_enum_fmt_vid_cap(struct file *file, void  *priv,
2544                                 struct v4l2_fmtdesc *f)
2545 {
2546         int rc = bttv_enum_fmt_cap_ovr(f);
2547
2548         if (rc < 0)
2549                 return rc;
2550
2551         return 0;
2552 }
2553
2554 static int bttv_enum_fmt_vid_overlay(struct file *file, void  *priv,
2555                                         struct v4l2_fmtdesc *f)
2556 {
2557         int rc;
2558
2559         if (no_overlay > 0) {
2560                 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2561                 return -EINVAL;
2562         }
2563
2564         rc = bttv_enum_fmt_cap_ovr(f);
2565
2566         if (rc < 0)
2567                 return rc;
2568
2569         if (!(formats[rc].flags & FORMAT_FLAGS_PACKED))
2570                 return -EINVAL;
2571
2572         return 0;
2573 }
2574
2575 static int bttv_g_fbuf(struct file *file, void *f,
2576                                 struct v4l2_framebuffer *fb)
2577 {
2578         struct bttv_fh *fh = f;
2579         struct bttv *btv = fh->btv;
2580
2581         *fb = btv->fbuf;
2582         fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
2583         fb->flags = V4L2_FBUF_FLAG_PRIMARY;
2584         if (fh->ovfmt)
2585                 fb->fmt.pixelformat  = fh->ovfmt->fourcc;
2586         return 0;
2587 }
2588
2589 static int bttv_overlay(struct file *file, void *f, unsigned int on)
2590 {
2591         struct bttv_fh *fh = f;
2592         struct bttv *btv = fh->btv;
2593         struct bttv_buffer *new;
2594         int retval = 0;
2595
2596         if (on) {
2597                 /* verify args */
2598                 if (unlikely(!btv->fbuf.base)) {
2599                         return -EINVAL;
2600                 }
2601                 if (unlikely(!fh->ov.setup_ok)) {
2602                         dprintk("%d: overlay: !setup_ok\n", btv->c.nr);
2603                         retval = -EINVAL;
2604                 }
2605                 if (retval)
2606                         return retval;
2607         }
2608
2609         if (!check_alloc_btres_lock(btv, fh, RESOURCE_OVERLAY))
2610                 return -EBUSY;
2611
2612         if (on) {
2613                 fh->ov.tvnorm = btv->tvnorm;
2614                 new = videobuf_sg_alloc(sizeof(*new));
2615                 new->crop = btv->crop[!!fh->do_crop].rect;
2616                 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2617         } else {
2618                 new = NULL;
2619         }
2620
2621         /* switch over */
2622         retval = bttv_switch_overlay(btv, fh, new);
2623         return retval;
2624 }
2625
2626 static int bttv_s_fbuf(struct file *file, void *f,
2627                                 const struct v4l2_framebuffer *fb)
2628 {
2629         struct bttv_fh *fh = f;
2630         struct bttv *btv = fh->btv;
2631         const struct bttv_format *fmt;
2632         int retval;
2633
2634         if (!capable(CAP_SYS_ADMIN) &&
2635                 !capable(CAP_SYS_RAWIO))
2636                 return -EPERM;
2637
2638         /* check args */
2639         fmt = format_by_fourcc(fb->fmt.pixelformat);
2640         if (NULL == fmt)
2641                 return -EINVAL;
2642         if (0 == (fmt->flags & FORMAT_FLAGS_PACKED))
2643                 return -EINVAL;
2644
2645         retval = -EINVAL;
2646         if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2647                 __s32 width = fb->fmt.width;
2648                 __s32 height = fb->fmt.height;
2649
2650                 retval = limit_scaled_size_lock(fh, &width, &height,
2651                                            V4L2_FIELD_INTERLACED,
2652                                            /* width_mask */ ~3,
2653                                            /* width_bias */ 2,
2654                                            /* adjust_size */ 0,
2655                                            /* adjust_crop */ 0);
2656                 if (0 != retval)
2657                         return retval;
2658         }
2659
2660         /* ok, accept it */
2661         btv->fbuf.base       = fb->base;
2662         btv->fbuf.fmt.width  = fb->fmt.width;
2663         btv->fbuf.fmt.height = fb->fmt.height;
2664         if (0 != fb->fmt.bytesperline)
2665                 btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline;
2666         else
2667                 btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8;
2668
2669         retval = 0;
2670         fh->ovfmt = fmt;
2671         btv->init.ovfmt = fmt;
2672         if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2673                 fh->ov.w.left   = 0;
2674                 fh->ov.w.top    = 0;
2675                 fh->ov.w.width  = fb->fmt.width;
2676                 fh->ov.w.height = fb->fmt.height;
2677                 btv->init.ov.w.width  = fb->fmt.width;
2678                 btv->init.ov.w.height = fb->fmt.height;
2679
2680                 kfree(fh->ov.clips);
2681                 fh->ov.clips = NULL;
2682                 fh->ov.nclips = 0;
2683
2684                 if (check_btres(fh, RESOURCE_OVERLAY)) {
2685                         struct bttv_buffer *new;
2686
2687                         new = videobuf_sg_alloc(sizeof(*new));
2688                         new->crop = btv->crop[!!fh->do_crop].rect;
2689                         bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2690                         retval = bttv_switch_overlay(btv, fh, new);
2691                 }
2692         }
2693         return retval;
2694 }
2695
2696 static int bttv_reqbufs(struct file *file, void *priv,
2697                                 struct v4l2_requestbuffers *p)
2698 {
2699         struct bttv_fh *fh = priv;
2700         return videobuf_reqbufs(bttv_queue(fh), p);
2701 }
2702
2703 static int bttv_querybuf(struct file *file, void *priv,
2704                                 struct v4l2_buffer *b)
2705 {
2706         struct bttv_fh *fh = priv;
2707         return videobuf_querybuf(bttv_queue(fh), b);
2708 }
2709
2710 static int bttv_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2711 {
2712         struct bttv_fh *fh = priv;
2713         struct bttv *btv = fh->btv;
2714         int res = bttv_resource(fh);
2715
2716         if (!check_alloc_btres_lock(btv, fh, res))
2717                 return -EBUSY;
2718
2719         return videobuf_qbuf(bttv_queue(fh), b);
2720 }
2721
2722 static int bttv_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2723 {
2724         struct bttv_fh *fh = priv;
2725         return videobuf_dqbuf(bttv_queue(fh), b,
2726                         file->f_flags & O_NONBLOCK);
2727 }
2728
2729 static int bttv_streamon(struct file *file, void *priv,
2730                                         enum v4l2_buf_type type)
2731 {
2732         struct bttv_fh *fh = priv;
2733         struct bttv *btv = fh->btv;
2734         int res = bttv_resource(fh);
2735
2736         if (!check_alloc_btres_lock(btv, fh, res))
2737                 return -EBUSY;
2738         return videobuf_streamon(bttv_queue(fh));
2739 }
2740
2741
2742 static int bttv_streamoff(struct file *file, void *priv,
2743                                         enum v4l2_buf_type type)
2744 {
2745         struct bttv_fh *fh = priv;
2746         struct bttv *btv = fh->btv;
2747         int retval;
2748         int res = bttv_resource(fh);
2749
2750
2751         retval = videobuf_streamoff(bttv_queue(fh));
2752         if (retval < 0)
2753                 return retval;
2754         free_btres_lock(btv, fh, res);
2755         return 0;
2756 }
2757
2758 static int bttv_g_parm(struct file *file, void *f,
2759                                 struct v4l2_streamparm *parm)
2760 {
2761         struct bttv_fh *fh = f;
2762         struct bttv *btv = fh->btv;
2763
2764         if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
2765                 return -EINVAL;
2766         parm->parm.capture.readbuffers = gbuffers;
2767         v4l2_video_std_frame_period(bttv_tvnorms[btv->tvnorm].v4l2_id,
2768                                     &parm->parm.capture.timeperframe);
2769
2770         return 0;
2771 }
2772
2773 static int bttv_g_tuner(struct file *file, void *priv,
2774                                 struct v4l2_tuner *t)
2775 {
2776         struct bttv_fh *fh = priv;
2777         struct bttv *btv = fh->btv;
2778
2779         if (0 != t->index)
2780                 return -EINVAL;
2781
2782         t->rxsubchans = V4L2_TUNER_SUB_MONO;
2783         t->capability = V4L2_TUNER_CAP_NORM;
2784         bttv_call_all(btv, tuner, g_tuner, t);
2785         strcpy(t->name, "Television");
2786         t->type       = V4L2_TUNER_ANALOG_TV;
2787         if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC)
2788                 t->signal = 0xffff;
2789
2790         if (btv->audio_mode_gpio)
2791                 btv->audio_mode_gpio(btv, t, 0);
2792
2793         return 0;
2794 }
2795
2796 static int bttv_cropcap(struct file *file, void *priv,
2797                                 struct v4l2_cropcap *cap)
2798 {
2799         struct bttv_fh *fh = priv;
2800         struct bttv *btv = fh->btv;
2801
2802         if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2803             cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2804                 return -EINVAL;
2805
2806         *cap = bttv_tvnorms[btv->tvnorm].cropcap;
2807
2808         return 0;
2809 }
2810
2811 static int bttv_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
2812 {
2813         struct bttv_fh *fh = f;
2814         struct bttv *btv = fh->btv;
2815
2816         if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2817             crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2818                 return -EINVAL;
2819
2820         /* No fh->do_crop = 1; because btv->crop[1] may be
2821            inconsistent with fh->width or fh->height and apps
2822            do not expect a change here. */
2823
2824         crop->c = btv->crop[!!fh->do_crop].rect;
2825
2826         return 0;
2827 }
2828
2829 static int bttv_s_crop(struct file *file, void *f, const struct v4l2_crop *crop)
2830 {
2831         struct bttv_fh *fh = f;
2832         struct bttv *btv = fh->btv;
2833         const struct v4l2_rect *b;
2834         int retval;
2835         struct bttv_crop c;
2836         __s32 b_left;
2837         __s32 b_top;
2838         __s32 b_right;
2839         __s32 b_bottom;
2840
2841         if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2842             crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2843                 return -EINVAL;
2844
2845         /* Make sure tvnorm, vbi_end and the current cropping
2846            parameters remain consistent until we're done. Note
2847            read() may change vbi_end in check_alloc_btres_lock(). */
2848         retval = -EBUSY;
2849
2850         if (locked_btres(fh->btv, VIDEO_RESOURCES)) {
2851                 return retval;
2852         }
2853
2854         b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
2855
2856         b_left = b->left;
2857         b_right = b_left + b->width;
2858         b_bottom = b->top + b->height;
2859
2860         b_top = max(b->top, btv->vbi_end);
2861         if (b_top + 32 >= b_bottom) {
2862                 return retval;
2863         }
2864
2865         /* Min. scaled size 48 x 32. */
2866         c.rect.left = clamp_t(s32, crop->c.left, b_left, b_right - 48);
2867         c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY);
2868
2869         c.rect.width = clamp_t(s32, crop->c.width,
2870                              48, b_right - c.rect.left);
2871
2872         c.rect.top = clamp_t(s32, crop->c.top, b_top, b_bottom - 32);
2873         /* Top and height must be a multiple of two. */
2874         c.rect.top = (c.rect.top + 1) & ~1;
2875
2876         c.rect.height = clamp_t(s32, crop->c.height,
2877                               32, b_bottom - c.rect.top);
2878         c.rect.height = (c.rect.height + 1) & ~1;
2879
2880         bttv_crop_calc_limits(&c);
2881
2882         btv->crop[1] = c;
2883
2884         fh->do_crop = 1;
2885
2886         if (fh->width < c.min_scaled_width) {
2887                 fh->width = c.min_scaled_width;
2888                 btv->init.width = c.min_scaled_width;
2889         } else if (fh->width > c.max_scaled_width) {
2890                 fh->width = c.max_scaled_width;
2891                 btv->init.width = c.max_scaled_width;
2892         }
2893
2894         if (fh->height < c.min_scaled_height) {
2895                 fh->height = c.min_scaled_height;
2896                 btv->init.height = c.min_scaled_height;
2897         } else if (fh->height > c.max_scaled_height) {
2898                 fh->height = c.max_scaled_height;
2899                 btv->init.height = c.max_scaled_height;
2900         }
2901
2902         return 0;
2903 }
2904
2905 static ssize_t bttv_read(struct file *file, char __user *data,
2906                          size_t count, loff_t *ppos)
2907 {
2908         struct bttv_fh *fh = file->private_data;
2909         int retval = 0;
2910
2911         if (fh->btv->errors)
2912                 bttv_reinit_bt848(fh->btv);
2913         dprintk("%d: read count=%d type=%s\n",
2914                 fh->btv->c.nr, (int)count, v4l2_type_names[fh->type]);
2915
2916         switch (fh->type) {
2917         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2918                 if (!check_alloc_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ)) {
2919                         /* VIDEO_READ in use by another fh,
2920                            or VIDEO_STREAM by any fh. */
2921                         return -EBUSY;
2922                 }
2923                 retval = videobuf_read_one(&fh->cap, data, count, ppos,
2924                                            file->f_flags & O_NONBLOCK);
2925                 free_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ);
2926                 break;
2927         case V4L2_BUF_TYPE_VBI_CAPTURE:
2928                 if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI))
2929                         return -EBUSY;
2930                 retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1,
2931                                               file->f_flags & O_NONBLOCK);
2932                 break;
2933         default:
2934                 BUG();
2935         }
2936         return retval;
2937 }
2938
2939 static unsigned int bttv_poll(struct file *file, poll_table *wait)
2940 {
2941         struct bttv_fh *fh = file->private_data;
2942         struct bttv_buffer *buf;
2943         enum v4l2_field field;
2944         unsigned int rc = 0;
2945         unsigned long req_events = poll_requested_events(wait);
2946
2947         if (v4l2_event_pending(&fh->fh))
2948                 rc = POLLPRI;
2949         else if (req_events & POLLPRI)
2950                 poll_wait(file, &fh->fh.wait, wait);
2951
2952         if (!(req_events & (POLLIN | POLLRDNORM)))
2953                 return rc;
2954
2955         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
2956                 if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI))
2957                         return rc | POLLERR;
2958                 return rc | videobuf_poll_stream(file, &fh->vbi, wait);
2959         }
2960
2961         if (check_btres(fh,RESOURCE_VIDEO_STREAM)) {
2962                 /* streaming capture */
2963                 if (list_empty(&fh->cap.stream))
2964                         return rc | POLLERR;
2965                 buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
2966         } else {
2967                 /* read() capture */
2968                 if (NULL == fh->cap.read_buf) {
2969                         /* need to capture a new frame */
2970                         if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM))
2971                                 return rc | POLLERR;
2972                         fh->cap.read_buf = videobuf_sg_alloc(fh->cap.msize);
2973                         if (NULL == fh->cap.read_buf)
2974                                 return rc | POLLERR;
2975                         fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR;
2976                         field = videobuf_next_field(&fh->cap);
2977                         if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) {
2978                                 kfree (fh->cap.read_buf);
2979                                 fh->cap.read_buf = NULL;
2980                                 return rc | POLLERR;
2981                         }
2982                         fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
2983                         fh->cap.read_off = 0;
2984                 }
2985                 buf = (struct bttv_buffer*)fh->cap.read_buf;
2986         }
2987
2988         poll_wait(file, &buf->vb.done, wait);
2989         if (buf->vb.state == VIDEOBUF_DONE ||
2990             buf->vb.state == VIDEOBUF_ERROR)
2991                 rc = rc | POLLIN|POLLRDNORM;
2992         return rc;
2993 }
2994
2995 static int bttv_open(struct file *file)
2996 {
2997         struct video_device *vdev = video_devdata(file);
2998         struct bttv *btv = video_drvdata(file);
2999         struct bttv_fh *fh;
3000         enum v4l2_buf_type type = 0;
3001
3002         dprintk("open dev=%s\n", video_device_node_name(vdev));
3003
3004         if (vdev->vfl_type == VFL_TYPE_GRABBER) {
3005                 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3006         } else if (vdev->vfl_type == VFL_TYPE_VBI) {
3007                 type = V4L2_BUF_TYPE_VBI_CAPTURE;
3008         } else {
3009                 WARN_ON(1);
3010                 return -ENODEV;
3011         }
3012
3013         dprintk("%d: open called (type=%s)\n",
3014                 btv->c.nr, v4l2_type_names[type]);
3015
3016         /* allocate per filehandle data */
3017         fh = kmalloc(sizeof(*fh), GFP_KERNEL);
3018         if (unlikely(!fh))
3019                 return -ENOMEM;
3020         btv->users++;
3021         file->private_data = fh;
3022
3023         *fh = btv->init;
3024         v4l2_fh_init(&fh->fh, vdev);
3025
3026         fh->type = type;
3027         fh->ov.setup_ok = 0;
3028
3029         videobuf_queue_sg_init(&fh->cap, &bttv_video_qops,
3030                             &btv->c.pci->dev, &btv->s_lock,
3031                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
3032                             V4L2_FIELD_INTERLACED,
3033                             sizeof(struct bttv_buffer),
3034                             fh, &btv->lock);
3035         videobuf_queue_sg_init(&fh->vbi, &bttv_vbi_qops,
3036                             &btv->c.pci->dev, &btv->s_lock,
3037                             V4L2_BUF_TYPE_VBI_CAPTURE,
3038                             V4L2_FIELD_SEQ_TB,
3039                             sizeof(struct bttv_buffer),
3040                             fh, &btv->lock);
3041         set_tvnorm(btv,btv->tvnorm);
3042         set_input(btv, btv->input, btv->tvnorm);
3043         audio_mute(btv, btv->mute);
3044
3045         /* The V4L2 spec requires one global set of cropping parameters
3046            which only change on request. These are stored in btv->crop[1].
3047            However for compatibility with V4L apps and cropping unaware
3048            V4L2 apps we now reset the cropping parameters as seen through
3049            this fh, which is to say VIDIOC_G_CROP and scaling limit checks
3050            will use btv->crop[0], the default cropping parameters for the
3051            current video standard, and VIDIOC_S_FMT will not implicitely
3052            change the cropping parameters until VIDIOC_S_CROP has been
3053            called. */
3054         fh->do_crop = !reset_crop; /* module parameter */
3055
3056         /* Likewise there should be one global set of VBI capture
3057            parameters, but for compatibility with V4L apps and earlier
3058            driver versions each fh has its own parameters. */
3059         bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm);
3060
3061         bttv_field_count(btv);
3062         v4l2_fh_add(&fh->fh);
3063         return 0;
3064 }
3065
3066 static int bttv_release(struct file *file)
3067 {
3068         struct bttv_fh *fh = file->private_data;
3069         struct bttv *btv = fh->btv;
3070
3071         /* turn off overlay */
3072         if (check_btres(fh, RESOURCE_OVERLAY))
3073                 bttv_switch_overlay(btv,fh,NULL);
3074
3075         /* stop video capture */
3076         if (check_btres(fh, RESOURCE_VIDEO_STREAM)) {
3077                 videobuf_streamoff(&fh->cap);
3078                 free_btres_lock(btv,fh,RESOURCE_VIDEO_STREAM);
3079         }
3080         if (fh->cap.read_buf) {
3081                 buffer_release(&fh->cap,fh->cap.read_buf);
3082                 kfree(fh->cap.read_buf);
3083         }
3084         if (check_btres(fh, RESOURCE_VIDEO_READ)) {
3085                 free_btres_lock(btv, fh, RESOURCE_VIDEO_READ);
3086         }
3087
3088         /* stop vbi capture */
3089         if (check_btres(fh, RESOURCE_VBI)) {
3090                 videobuf_stop(&fh->vbi);
3091                 free_btres_lock(btv,fh,RESOURCE_VBI);
3092         }
3093
3094         /* free stuff */
3095
3096         videobuf_mmap_free(&fh->cap);
3097         videobuf_mmap_free(&fh->vbi);
3098         file->private_data = NULL;
3099
3100         btv->users--;
3101         bttv_field_count(btv);
3102
3103         if (!btv->users)
3104                 audio_mute(btv, btv->mute);
3105
3106         v4l2_fh_del(&fh->fh);
3107         v4l2_fh_exit(&fh->fh);
3108         kfree(fh);
3109         return 0;
3110 }
3111
3112 static int
3113 bttv_mmap(struct file *file, struct vm_area_struct *vma)
3114 {
3115         struct bttv_fh *fh = file->private_data;
3116
3117         dprintk("%d: mmap type=%s 0x%lx+%ld\n",
3118                 fh->btv->c.nr, v4l2_type_names[fh->type],
3119                 vma->vm_start, vma->vm_end - vma->vm_start);
3120         return videobuf_mmap_mapper(bttv_queue(fh),vma);
3121 }
3122
3123 static const struct v4l2_file_operations bttv_fops =
3124 {
3125         .owner            = THIS_MODULE,
3126         .open             = bttv_open,
3127         .release          = bttv_release,
3128         .unlocked_ioctl   = video_ioctl2,
3129         .read             = bttv_read,
3130         .mmap             = bttv_mmap,
3131         .poll             = bttv_poll,
3132 };
3133
3134 static const struct v4l2_ioctl_ops bttv_ioctl_ops = {
3135         .vidioc_querycap                = bttv_querycap,
3136         .vidioc_enum_fmt_vid_cap        = bttv_enum_fmt_vid_cap,
3137         .vidioc_g_fmt_vid_cap           = bttv_g_fmt_vid_cap,
3138         .vidioc_try_fmt_vid_cap         = bttv_try_fmt_vid_cap,
3139         .vidioc_s_fmt_vid_cap           = bttv_s_fmt_vid_cap,
3140         .vidioc_enum_fmt_vid_overlay    = bttv_enum_fmt_vid_overlay,
3141         .vidioc_g_fmt_vid_overlay       = bttv_g_fmt_vid_overlay,
3142         .vidioc_try_fmt_vid_overlay     = bttv_try_fmt_vid_overlay,
3143         .vidioc_s_fmt_vid_overlay       = bttv_s_fmt_vid_overlay,
3144         .vidioc_g_fmt_vbi_cap           = bttv_g_fmt_vbi_cap,
3145         .vidioc_try_fmt_vbi_cap         = bttv_try_fmt_vbi_cap,
3146         .vidioc_s_fmt_vbi_cap           = bttv_s_fmt_vbi_cap,
3147         .vidioc_cropcap                 = bttv_cropcap,
3148         .vidioc_reqbufs                 = bttv_reqbufs,
3149         .vidioc_querybuf                = bttv_querybuf,
3150         .vidioc_qbuf                    = bttv_qbuf,
3151         .vidioc_dqbuf                   = bttv_dqbuf,
3152         .vidioc_s_std                   = bttv_s_std,
3153         .vidioc_g_std                   = bttv_g_std,
3154         .vidioc_enum_input              = bttv_enum_input,
3155         .vidioc_g_input                 = bttv_g_input,
3156         .vidioc_s_input                 = bttv_s_input,
3157         .vidioc_streamon                = bttv_streamon,
3158         .vidioc_streamoff               = bttv_streamoff,
3159         .vidioc_g_tuner                 = bttv_g_tuner,
3160         .vidioc_s_tuner                 = bttv_s_tuner,
3161         .vidioc_g_crop                  = bttv_g_crop,
3162         .vidioc_s_crop                  = bttv_s_crop,
3163         .vidioc_g_fbuf                  = bttv_g_fbuf,
3164         .vidioc_s_fbuf                  = bttv_s_fbuf,
3165         .vidioc_overlay                 = bttv_overlay,
3166         .vidioc_g_parm                  = bttv_g_parm,
3167         .vidioc_g_frequency             = bttv_g_frequency,
3168         .vidioc_s_frequency             = bttv_s_frequency,
3169         .vidioc_log_status              = bttv_log_status,
3170         .vidioc_querystd                = bttv_querystd,
3171         .vidioc_subscribe_event         = v4l2_ctrl_subscribe_event,
3172         .vidioc_unsubscribe_event       = v4l2_event_unsubscribe,
3173 #ifdef CONFIG_VIDEO_ADV_DEBUG
3174         .vidioc_g_register              = bttv_g_register,
3175         .vidioc_s_register              = bttv_s_register,
3176 #endif
3177 };
3178
3179 static struct video_device bttv_video_template = {
3180         .fops         = &bttv_fops,
3181         .ioctl_ops    = &bttv_ioctl_ops,
3182         .tvnorms      = BTTV_NORMS,
3183 };
3184
3185 /* ----------------------------------------------------------------------- */
3186 /* radio interface                                                         */
3187
3188 static int radio_open(struct file *file)
3189 {
3190         struct video_device *vdev = video_devdata(file);
3191         struct bttv *btv = video_drvdata(file);
3192         struct bttv_fh *fh;
3193
3194         dprintk("open dev=%s\n", video_device_node_name(vdev));
3195
3196         dprintk("%d: open called (radio)\n", btv->c.nr);
3197
3198         /* allocate per filehandle data */
3199         fh = kmalloc(sizeof(*fh), GFP_KERNEL);
3200         if (unlikely(!fh))
3201                 return -ENOMEM;
3202         file->private_data = fh;
3203         *fh = btv->init;
3204         v4l2_fh_init(&fh->fh, vdev);
3205
3206         btv->radio_user++;
3207         audio_mute(btv, btv->mute);
3208
3209         v4l2_fh_add(&fh->fh);
3210
3211         return 0;
3212 }
3213
3214 static int radio_release(struct file *file)
3215 {
3216         struct bttv_fh *fh = file->private_data;
3217         struct bttv *btv = fh->btv;
3218         struct saa6588_command cmd;
3219
3220         file->private_data = NULL;
3221         v4l2_fh_del(&fh->fh);
3222         v4l2_fh_exit(&fh->fh);
3223         kfree(fh);
3224
3225         btv->radio_user--;
3226
3227         bttv_call_all(btv, core, ioctl, SAA6588_CMD_CLOSE, &cmd);
3228
3229         if (btv->radio_user == 0)
3230                 btv->has_radio_tuner = 0;
3231         return 0;
3232 }
3233
3234 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
3235 {
3236         struct bttv_fh *fh = priv;
3237         struct bttv *btv = fh->btv;
3238
3239         if (0 != t->index)
3240                 return -EINVAL;
3241         strcpy(t->name, "Radio");
3242         t->type = V4L2_TUNER_RADIO;
3243         radio_enable(btv);
3244
3245         bttv_call_all(btv, tuner, g_tuner, t);
3246
3247         if (btv->audio_mode_gpio)
3248                 btv->audio_mode_gpio(btv, t, 0);
3249
3250         if (btv->has_tea575x)
3251                 return snd_tea575x_g_tuner(&btv->tea, t);
3252
3253         return 0;
3254 }
3255
3256 static int radio_s_tuner(struct file *file, void *priv,
3257                                         const struct v4l2_tuner *t)
3258 {
3259         struct bttv_fh *fh = priv;
3260         struct bttv *btv = fh->btv;
3261
3262         if (0 != t->index)
3263                 return -EINVAL;
3264
3265         radio_enable(btv);
3266         bttv_call_all(btv, tuner, s_tuner, t);
3267         return 0;
3268 }
3269
3270 static int radio_s_hw_freq_seek(struct file *file, void *priv,
3271                                         const struct v4l2_hw_freq_seek *a)
3272 {
3273         struct bttv_fh *fh = priv;
3274         struct bttv *btv = fh->btv;
3275
3276         if (btv->has_tea575x)
3277                 return snd_tea575x_s_hw_freq_seek(file, &btv->tea, a);
3278
3279         return -ENOTTY;
3280 }
3281
3282 static int radio_enum_freq_bands(struct file *file, void *priv,
3283                                          struct v4l2_frequency_band *band)
3284 {
3285         struct bttv_fh *fh = priv;
3286         struct bttv *btv = fh->btv;
3287
3288         if (btv->has_tea575x)
3289                 return snd_tea575x_enum_freq_bands(&btv->tea, band);
3290
3291         return -ENOTTY;
3292 }
3293
3294 static ssize_t radio_read(struct file *file, char __user *data,
3295                          size_t count, loff_t *ppos)
3296 {
3297         struct bttv_fh *fh = file->private_data;
3298         struct bttv *btv = fh->btv;
3299         struct saa6588_command cmd;
3300
3301         cmd.block_count = count / 3;
3302         cmd.nonblocking = file->f_flags & O_NONBLOCK;
3303         cmd.buffer = data;
3304         cmd.instance = file;
3305         cmd.result = -ENODEV;
3306         radio_enable(btv);
3307
3308         bttv_call_all(btv, core, ioctl, SAA6588_CMD_READ, &cmd);
3309
3310         return cmd.result;
3311 }
3312
3313 static unsigned int radio_poll(struct file *file, poll_table *wait)
3314 {
3315         struct bttv_fh *fh = file->private_data;
3316         struct bttv *btv = fh->btv;
3317         unsigned long req_events = poll_requested_events(wait);
3318         struct saa6588_command cmd;
3319         unsigned int res = 0;
3320
3321         if (v4l2_event_pending(&fh->fh))
3322                 res = POLLPRI;
3323         else if (req_events & POLLPRI)
3324                 poll_wait(file, &fh->fh.wait, wait);
3325         radio_enable(btv);
3326         cmd.instance = file;
3327         cmd.event_list = wait;
3328         cmd.result = res;
3329         bttv_call_all(btv, core, ioctl, SAA6588_CMD_POLL, &cmd);
3330
3331         return cmd.result;
3332 }
3333
3334 static const struct v4l2_file_operations radio_fops =
3335 {
3336         .owner    = THIS_MODULE,
3337         .open     = radio_open,
3338         .read     = radio_read,
3339         .release  = radio_release,
3340         .unlocked_ioctl = video_ioctl2,
3341         .poll     = radio_poll,
3342 };
3343
3344 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
3345         .vidioc_querycap        = bttv_querycap,
3346         .vidioc_log_status      = bttv_log_status,
3347         .vidioc_g_tuner         = radio_g_tuner,
3348         .vidioc_s_tuner         = radio_s_tuner,
3349         .vidioc_g_frequency     = bttv_g_frequency,
3350         .vidioc_s_frequency     = bttv_s_frequency,
3351         .vidioc_s_hw_freq_seek  = radio_s_hw_freq_seek,
3352         .vidioc_enum_freq_bands = radio_enum_freq_bands,
3353         .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
3354         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
3355 };
3356
3357 static struct video_device radio_template = {
3358         .fops      = &radio_fops,
3359         .ioctl_ops = &radio_ioctl_ops,
3360 };
3361
3362 /* ----------------------------------------------------------------------- */
3363 /* some debug code                                                         */
3364
3365 static int bttv_risc_decode(u32 risc)
3366 {
3367         static char *instr[16] = {
3368                 [ BT848_RISC_WRITE     >> 28 ] = "write",
3369                 [ BT848_RISC_SKIP      >> 28 ] = "skip",
3370                 [ BT848_RISC_WRITEC    >> 28 ] = "writec",
3371                 [ BT848_RISC_JUMP      >> 28 ] = "jump",
3372                 [ BT848_RISC_SYNC      >> 28 ] = "sync",
3373                 [ BT848_RISC_WRITE123  >> 28 ] = "write123",
3374                 [ BT848_RISC_SKIP123   >> 28 ] = "skip123",
3375                 [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23",
3376         };
3377         static int incr[16] = {
3378                 [ BT848_RISC_WRITE     >> 28 ] = 2,
3379                 [ BT848_RISC_JUMP      >> 28 ] = 2,
3380                 [ BT848_RISC_SYNC      >> 28 ] = 2,
3381                 [ BT848_RISC_WRITE123  >> 28 ] = 5,
3382                 [ BT848_RISC_SKIP123   >> 28 ] = 2,
3383                 [ BT848_RISC_WRITE1S23 >> 28 ] = 3,
3384         };
3385         static char *bits[] = {
3386                 "be0",  "be1",  "be2",  "be3/resync",
3387                 "set0", "set1", "set2", "set3",
3388                 "clr0", "clr1", "clr2", "clr3",
3389                 "irq",  "res",  "eol",  "sol",
3390         };
3391         int i;
3392
3393         pr_cont("0x%08x [ %s", risc,
3394                instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
3395         for (i = ARRAY_SIZE(bits)-1; i >= 0; i--)
3396                 if (risc & (1 << (i + 12)))
3397                         pr_cont(" %s", bits[i]);
3398         pr_cont(" count=%d ]\n", risc & 0xfff);
3399         return incr[risc >> 28] ? incr[risc >> 28] : 1;
3400 }
3401
3402 static void bttv_risc_disasm(struct bttv *btv,
3403                              struct btcx_riscmem *risc)
3404 {
3405         unsigned int i,j,n;
3406
3407         pr_info("%s: risc disasm: %p [dma=0x%08lx]\n",
3408                 btv->c.v4l2_dev.name, risc->cpu, (unsigned long)risc->dma);
3409         for (i = 0; i < (risc->size >> 2); i += n) {
3410                 pr_info("%s:   0x%lx: ",
3411                         btv->c.v4l2_dev.name,
3412                         (unsigned long)(risc->dma + (i<<2)));
3413                 n = bttv_risc_decode(le32_to_cpu(risc->cpu[i]));
3414                 for (j = 1; j < n; j++)
3415                         pr_info("%s:   0x%lx: 0x%08x [ arg #%d ]\n",
3416                                 btv->c.v4l2_dev.name,
3417                                 (unsigned long)(risc->dma + ((i+j)<<2)),
3418                                 risc->cpu[i+j], j);
3419                 if (0 == risc->cpu[i])
3420                         break;
3421         }
3422 }
3423
3424 static void bttv_print_riscaddr(struct bttv *btv)
3425 {
3426         pr_info("  main: %08llx\n", (unsigned long long)btv->main.dma);
3427         pr_info("  vbi : o=%08llx e=%08llx\n",
3428                 btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0,
3429                 btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0);
3430         pr_info("  cap : o=%08llx e=%08llx\n",
3431                 btv->curr.top
3432                 ? (unsigned long long)btv->curr.top->top.dma : 0,
3433                 btv->curr.bottom
3434                 ? (unsigned long long)btv->curr.bottom->bottom.dma : 0);
3435         pr_info("  scr : o=%08llx e=%08llx\n",
3436                 btv->screen ? (unsigned long long)btv->screen->top.dma : 0,
3437                 btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0);
3438         bttv_risc_disasm(btv, &btv->main);
3439 }
3440
3441 /* ----------------------------------------------------------------------- */
3442 /* irq handler                                                             */
3443
3444 static char *irq_name[] = {
3445         "FMTCHG",  // format change detected (525 vs. 625)
3446         "VSYNC",   // vertical sync (new field)
3447         "HSYNC",   // horizontal sync
3448         "OFLOW",   // chroma/luma AGC overflow
3449         "HLOCK",   // horizontal lock changed
3450         "VPRES",   // video presence changed
3451         "6", "7",
3452         "I2CDONE", // hw irc operation finished
3453         "GPINT",   // gpio port triggered irq
3454         "10",
3455         "RISCI",   // risc instruction triggered irq
3456         "FBUS",    // pixel data fifo dropped data (high pci bus latencies)
3457         "FTRGT",   // pixel data fifo overrun
3458         "FDSR",    // fifo data stream resyncronisation
3459         "PPERR",   // parity error (data transfer)
3460         "RIPERR",  // parity error (read risc instructions)
3461         "PABORT",  // pci abort
3462         "OCERR",   // risc instruction error
3463         "SCERR",   // syncronisation error
3464 };
3465
3466 static void bttv_print_irqbits(u32 print, u32 mark)
3467 {
3468         unsigned int i;
3469
3470         pr_cont("bits:");
3471         for (i = 0; i < ARRAY_SIZE(irq_name); i++) {
3472                 if (print & (1 << i))
3473                         pr_cont(" %s", irq_name[i]);
3474                 if (mark & (1 << i))
3475                         pr_cont("*");
3476         }
3477 }
3478
3479 static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc)
3480 {
3481         pr_warn("%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n",
3482                 btv->c.nr,
3483                 (unsigned long)btv->main.dma,
3484                 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_VBI+1]),
3485                 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_FIELD+1]),
3486                 (unsigned long)rc);
3487
3488         if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) {
3489                 pr_notice("%d: Oh, there (temporarily?) is no input signal. "
3490                           "Ok, then this is harmless, don't worry ;)\n",
3491                           btv->c.nr);
3492                 return;
3493         }
3494         pr_notice("%d: Uhm. Looks like we have unusual high IRQ latencies\n",
3495                   btv->c.nr);
3496         pr_notice("%d: Lets try to catch the culpit red-handed ...\n",
3497                   btv->c.nr);
3498         dump_stack();
3499 }
3500
3501 static int
3502 bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set)
3503 {
3504         struct bttv_buffer *item;
3505
3506         memset(set,0,sizeof(*set));
3507
3508         /* capture request ? */
3509         if (!list_empty(&btv->capture)) {
3510                 set->frame_irq = 1;
3511                 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3512                 if (V4L2_FIELD_HAS_TOP(item->vb.field))
3513                         set->top    = item;
3514                 if (V4L2_FIELD_HAS_BOTTOM(item->vb.field))
3515                         set->bottom = item;
3516
3517                 /* capture request for other field ? */
3518                 if (!V4L2_FIELD_HAS_BOTH(item->vb.field) &&
3519                     (item->vb.queue.next != &btv->capture)) {
3520                         item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue);
3521                         /* Mike Isely <isely@pobox.com> - Only check
3522                          * and set up the bottom field in the logic
3523                          * below.  Don't ever do the top field.  This
3524                          * of course means that if we set up the
3525                          * bottom field in the above code that we'll
3526                          * actually skip a field.  But that's OK.
3527                          * Having processed only a single buffer this
3528                          * time, then the next time around the first
3529                          * available buffer should be for a top field.
3530                          * That will then cause us here to set up a
3531                          * top then a bottom field in the normal way.
3532                          * The alternative to this understanding is
3533                          * that we set up the second available buffer
3534                          * as a top field, but that's out of order
3535                          * since this driver always processes the top
3536                          * field first - the effect will be the two
3537                          * buffers being returned in the wrong order,
3538                          * with the second buffer also being delayed
3539                          * by one field time (owing to the fifo nature
3540                          * of videobuf).  Worse still, we'll be stuck
3541                          * doing fields out of order now every time
3542                          * until something else causes a field to be
3543                          * dropped.  By effectively forcing a field to
3544                          * drop this way then we always get back into
3545                          * sync within a single frame time.  (Out of
3546                          * order fields can screw up deinterlacing
3547                          * algorithms.) */
3548                         if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) {
3549                                 if (NULL == set->bottom &&
3550                                     V4L2_FIELD_BOTTOM == item->vb.field) {
3551                                         set->bottom = item;
3552                                 }
3553                                 if (NULL != set->top  &&  NULL != set->bottom)
3554                                         set->top_irq = 2;
3555                         }
3556                 }
3557         }
3558
3559         /* screen overlay ? */
3560         if (NULL != btv->screen) {
3561                 if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) {
3562                         if (NULL == set->top && NULL == set->bottom) {
3563                                 set->top    = btv->screen;
3564                                 set->bottom = btv->screen;
3565                         }
3566                 } else {
3567                         if (V4L2_FIELD_TOP == btv->screen->vb.field &&
3568                             NULL == set->top) {
3569                                 set->top = btv->screen;
3570                         }
3571                         if (V4L2_FIELD_BOTTOM == btv->screen->vb.field &&
3572                             NULL == set->bottom) {
3573                                 set->bottom = btv->screen;
3574                         }
3575                 }
3576         }
3577
3578         dprintk("%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n",
3579                 btv->c.nr, set->top, set->bottom,
3580                 btv->screen, set->frame_irq, set->top_irq);
3581         return 0;
3582 }
3583
3584 static void
3585 bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup,
3586                       struct bttv_buffer_set *curr, unsigned int state)
3587 {
3588         struct timeval ts;
3589
3590         v4l2_get_timestamp(&ts);
3591
3592         if (wakeup->top == wakeup->bottom) {
3593                 if (NULL != wakeup->top && curr->top != wakeup->top) {
3594                         if (irq_debug > 1)
3595                                 pr_debug("%d: wakeup: both=%p\n",
3596                                          btv->c.nr, wakeup->top);
3597                         wakeup->top->vb.ts = ts;
3598                         wakeup->top->vb.field_count = btv->field_count;
3599                         wakeup->top->vb.state = state;
3600                         wake_up(&wakeup->top->vb.done);
3601                 }
3602         } else {
3603                 if (NULL != wakeup->top && curr->top != wakeup->top) {
3604                         if (irq_debug > 1)
3605                                 pr_debug("%d: wakeup: top=%p\n",
3606                                          btv->c.nr, wakeup->top);
3607                         wakeup->top->vb.ts = ts;
3608                         wakeup->top->vb.field_count = btv->field_count;
3609                         wakeup->top->vb.state = state;
3610                         wake_up(&wakeup->top->vb.done);
3611                 }
3612                 if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) {
3613                         if (irq_debug > 1)
3614                                 pr_debug("%d: wakeup: bottom=%p\n",
3615                                          btv->c.nr, wakeup->bottom);
3616                         wakeup->bottom->vb.ts = ts;
3617                         wakeup->bottom->vb.field_count = btv->field_count;
3618                         wakeup->bottom->vb.state = state;
3619                         wake_up(&wakeup->bottom->vb.done);
3620                 }
3621         }
3622 }
3623
3624 static void
3625 bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup,
3626                     unsigned int state)
3627 {
3628         if (NULL == wakeup)
3629                 return;
3630
3631         v4l2_get_timestamp(&wakeup->vb.ts);
3632         wakeup->vb.field_count = btv->field_count;
3633         wakeup->vb.state = state;
3634         wake_up(&wakeup->vb.done);
3635 }
3636
3637 static void bttv_irq_timeout(unsigned long data)
3638 {
3639         struct bttv *btv = (struct bttv *)data;
3640         struct bttv_buffer_set old,new;
3641         struct bttv_buffer *ovbi;
3642         struct bttv_buffer *item;
3643         unsigned long flags;
3644
3645         if (bttv_verbose) {
3646                 pr_info("%d: timeout: drop=%d irq=%d/%d, risc=%08x, ",
3647                         btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total,
3648                         btread(BT848_RISC_COUNT));
3649                 bttv_print_irqbits(btread(BT848_INT_STAT),0);
3650                 pr_cont("\n");
3651         }
3652
3653         spin_lock_irqsave(&btv->s_lock,flags);
3654
3655         /* deactivate stuff */
3656         memset(&new,0,sizeof(new));
3657         old  = btv->curr;
3658         ovbi = btv->cvbi;
3659         btv->curr = new;
3660         btv->cvbi = NULL;
3661         btv->loop_irq = 0;
3662         bttv_buffer_activate_video(btv, &new);
3663         bttv_buffer_activate_vbi(btv,   NULL);
3664         bttv_set_dma(btv, 0);
3665
3666         /* wake up */
3667         bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_ERROR);
3668         bttv_irq_wakeup_vbi(btv, ovbi, VIDEOBUF_ERROR);
3669
3670         /* cancel all outstanding capture / vbi requests */
3671         while (!list_empty(&btv->capture)) {
3672                 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3673                 list_del(&item->vb.queue);
3674                 item->vb.state = VIDEOBUF_ERROR;
3675                 wake_up(&item->vb.done);
3676         }
3677         while (!list_empty(&btv->vcapture)) {
3678                 item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3679                 list_del(&item->vb.queue);
3680                 item->vb.state = VIDEOBUF_ERROR;
3681                 wake_up(&item->vb.done);
3682         }
3683
3684         btv->errors++;
3685         spin_unlock_irqrestore(&btv->s_lock,flags);
3686 }
3687
3688 static void
3689 bttv_irq_wakeup_top(struct bttv *btv)
3690 {
3691         struct bttv_buffer *wakeup = btv->curr.top;
3692
3693         if (NULL == wakeup)
3694                 return;
3695
3696         spin_lock(&btv->s_lock);
3697         btv->curr.top_irq = 0;
3698         btv->curr.top = NULL;
3699         bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
3700
3701         v4l2_get_timestamp(&wakeup->vb.ts);
3702         wakeup->vb.field_count = btv->field_count;
3703         wakeup->vb.state = VIDEOBUF_DONE;
3704         wake_up(&wakeup->vb.done);
3705         spin_unlock(&btv->s_lock);
3706 }
3707
3708 static inline int is_active(struct btcx_riscmem *risc, u32 rc)
3709 {
3710         if (rc < risc->dma)
3711                 return 0;
3712         if (rc > risc->dma + risc->size)
3713                 return 0;
3714         return 1;
3715 }
3716
3717 static void
3718 bttv_irq_switch_video(struct bttv *btv)
3719 {
3720         struct bttv_buffer_set new;
3721         struct bttv_buffer_set old;
3722         dma_addr_t rc;
3723
3724         spin_lock(&btv->s_lock);
3725
3726         /* new buffer set */
3727         bttv_irq_next_video(btv, &new);
3728         rc = btread(BT848_RISC_COUNT);
3729         if ((btv->curr.top    && is_active(&btv->curr.top->top,       rc)) ||
3730             (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) {
3731                 btv->framedrop++;
3732                 if (debug_latency)
3733                         bttv_irq_debug_low_latency(btv, rc);
3734                 spin_unlock(&btv->s_lock);
3735                 return;
3736         }
3737
3738         /* switch over */
3739         old = btv->curr;
3740         btv->curr = new;
3741         btv->loop_irq &= ~1;
3742         bttv_buffer_activate_video(btv, &new);
3743         bttv_set_dma(btv, 0);
3744
3745         /* switch input */
3746         if (UNSET != btv->new_input) {
3747                 video_mux(btv,btv->new_input);
3748                 btv->new_input = UNSET;
3749         }
3750
3751         /* wake up finished buffers */
3752         bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_DONE);
3753         spin_unlock(&btv->s_lock);
3754 }
3755
3756 static void
3757 bttv_irq_switch_vbi(struct bttv *btv)
3758 {
3759         struct bttv_buffer *new = NULL;
3760         struct bttv_buffer *old;
3761         u32 rc;
3762
3763         spin_lock(&btv->s_lock);
3764
3765         if (!list_empty(&btv->vcapture))
3766                 new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3767         old = btv->cvbi;
3768
3769         rc = btread(BT848_RISC_COUNT);
3770         if (NULL != old && (is_active(&old->top,    rc) ||
3771                             is_active(&old->bottom, rc))) {
3772                 btv->framedrop++;
3773                 if (debug_latency)
3774                         bttv_irq_debug_low_latency(btv, rc);
3775                 spin_unlock(&btv->s_lock);
3776                 return;
3777         }
3778
3779         /* switch */
3780         btv->cvbi = new;
3781         btv->loop_irq &= ~4;
3782         bttv_buffer_activate_vbi(btv, new);
3783         bttv_set_dma(btv, 0);
3784
3785         bttv_irq_wakeup_vbi(btv, old, VIDEOBUF_DONE);
3786         spin_unlock(&btv->s_lock);
3787 }
3788
3789 static irqreturn_t bttv_irq(int irq, void *dev_id)
3790 {
3791         u32 stat,astat;
3792         u32 dstat;
3793         int count;
3794         struct bttv *btv;
3795         int handled = 0;
3796
3797         btv=(struct bttv *)dev_id;
3798
3799         count=0;
3800         while (1) {
3801                 /* get/clear interrupt status bits */
3802                 stat=btread(BT848_INT_STAT);
3803                 astat=stat&btread(BT848_INT_MASK);
3804                 if (!astat)
3805                         break;
3806                 handled = 1;
3807                 btwrite(stat,BT848_INT_STAT);
3808
3809                 /* get device status bits */
3810                 dstat=btread(BT848_DSTATUS);
3811
3812                 if (irq_debug) {
3813                         pr_debug("%d: irq loop=%d fc=%d riscs=%x, riscc=%08x, ",
3814                                  btv->c.nr, count, btv->field_count,
3815                                  stat>>28, btread(BT848_RISC_COUNT));
3816                         bttv_print_irqbits(stat,astat);
3817                         if (stat & BT848_INT_HLOCK)
3818                                 pr_cont("   HLOC => %s",
3819                                         dstat & BT848_DSTATUS_HLOC
3820                                         ? "yes" : "no");
3821                         if (stat & BT848_INT_VPRES)
3822                                 pr_cont("   PRES => %s",
3823                                         dstat & BT848_DSTATUS_PRES
3824                                         ? "yes" : "no");
3825                         if (stat & BT848_INT_FMTCHG)
3826                                 pr_cont("   NUML => %s",
3827                                         dstat & BT848_DSTATUS_NUML
3828                                         ? "625" : "525");
3829                         pr_cont("\n");
3830                 }
3831
3832                 if (astat&BT848_INT_VSYNC)
3833                         btv->field_count++;
3834
3835                 if ((astat & BT848_INT_GPINT) && btv->remote) {
3836                         bttv_input_irq(btv);
3837                 }
3838
3839                 if (astat & BT848_INT_I2CDONE) {
3840                         btv->i2c_done = stat;
3841                         wake_up(&btv->i2c_queue);
3842                 }
3843
3844                 if ((astat & BT848_INT_RISCI)  &&  (stat & (4<<28)))
3845                         bttv_irq_switch_vbi(btv);
3846
3847                 if ((astat & BT848_INT_RISCI)  &&  (stat & (2<<28)))
3848                         bttv_irq_wakeup_top(btv);
3849
3850                 if ((astat & BT848_INT_RISCI)  &&  (stat & (1<<28)))
3851                         bttv_irq_switch_video(btv);
3852
3853                 if ((astat & BT848_INT_HLOCK)  &&  btv->opt_automute)
3854                         /* trigger automute */
3855                         audio_mux_gpio(btv, btv->audio_input, btv->mute);
3856
3857                 if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) {
3858                         pr_info("%d: %s%s @ %08x,",
3859                                 btv->c.nr,
3860                                 (astat & BT848_INT_SCERR) ? "SCERR" : "",
3861                                 (astat & BT848_INT_OCERR) ? "OCERR" : "",
3862                                 btread(BT848_RISC_COUNT));
3863                         bttv_print_irqbits(stat,astat);
3864                         pr_cont("\n");
3865                         if (bttv_debug)
3866                                 bttv_print_riscaddr(btv);
3867                 }
3868                 if (fdsr && astat & BT848_INT_FDSR) {
3869                         pr_info("%d: FDSR @ %08x\n",
3870                                 btv->c.nr, btread(BT848_RISC_COUNT));
3871                         if (bttv_debug)
3872                                 bttv_print_riscaddr(btv);
3873                 }
3874
3875                 count++;
3876                 if (count > 4) {
3877
3878                         if (count > 8 || !(astat & BT848_INT_GPINT)) {
3879                                 btwrite(0, BT848_INT_MASK);
3880
3881                                 pr_err("%d: IRQ lockup, cleared int mask [",
3882                                        btv->c.nr);
3883                         } else {
3884                                 pr_err("%d: IRQ lockup, clearing GPINT from int mask [",
3885                                        btv->c.nr);
3886
3887                                 btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT),
3888                                                 BT848_INT_MASK);
3889                         }
3890
3891                         bttv_print_irqbits(stat,astat);
3892
3893                         pr_cont("]\n");
3894                 }
3895         }
3896         btv->irq_total++;
3897         if (handled)
3898                 btv->irq_me++;
3899         return IRQ_RETVAL(handled);
3900 }
3901
3902
3903 /* ----------------------------------------------------------------------- */
3904 /* initialization                                                          */
3905
3906 static void vdev_init(struct bttv *btv,
3907                       struct video_device *vfd,
3908                       const struct video_device *template,
3909                       const char *type_name)
3910 {
3911         *vfd = *template;
3912         vfd->v4l2_dev = &btv->c.v4l2_dev;
3913         vfd->release = video_device_release_empty;
3914         video_set_drvdata(vfd, btv);
3915         snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)",
3916                  btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "",
3917                  type_name, bttv_tvcards[btv->c.type].name);
3918         if (btv->tuner_type == TUNER_ABSENT) {
3919                 v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY);
3920                 v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY);
3921                 v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER);
3922                 v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER);
3923         }
3924 }
3925
3926 static void bttv_unregister_video(struct bttv *btv)
3927 {
3928         video_unregister_device(&btv->video_dev);
3929         video_unregister_device(&btv->vbi_dev);
3930         video_unregister_device(&btv->radio_dev);
3931 }
3932
3933 /* register video4linux devices */
3934 static int bttv_register_video(struct bttv *btv)
3935 {
3936         if (no_overlay > 0)
3937                 pr_notice("Overlay support disabled\n");
3938
3939         /* video */
3940         vdev_init(btv, &btv->video_dev, &bttv_video_template, "video");
3941
3942         if (video_register_device(&btv->video_dev, VFL_TYPE_GRABBER,
3943                                   video_nr[btv->c.nr]) < 0)
3944                 goto err;
3945         pr_info("%d: registered device %s\n",
3946                 btv->c.nr, video_device_node_name(&btv->video_dev));
3947         if (device_create_file(&btv->video_dev.dev,
3948                                      &dev_attr_card)<0) {
3949                 pr_err("%d: device_create_file 'card' failed\n", btv->c.nr);
3950                 goto err;
3951         }
3952
3953         /* vbi */
3954         vdev_init(btv, &btv->vbi_dev, &bttv_video_template, "vbi");
3955
3956         if (video_register_device(&btv->vbi_dev, VFL_TYPE_VBI,
3957                                   vbi_nr[btv->c.nr]) < 0)
3958                 goto err;
3959         pr_info("%d: registered device %s\n",
3960                 btv->c.nr, video_device_node_name(&btv->vbi_dev));
3961
3962         if (!btv->has_radio)
3963                 return 0;
3964         /* radio */
3965         vdev_init(btv, &btv->radio_dev, &radio_template, "radio");
3966         btv->radio_dev.ctrl_handler = &btv->radio_ctrl_handler;
3967         if (video_register_device(&btv->radio_dev, VFL_TYPE_RADIO,
3968                                   radio_nr[btv->c.nr]) < 0)
3969                 goto err;
3970         pr_info("%d: registered device %s\n",
3971                 btv->c.nr, video_device_node_name(&btv->radio_dev));
3972
3973         /* all done */
3974         return 0;
3975
3976  err:
3977         bttv_unregister_video(btv);
3978         return -1;
3979 }
3980
3981
3982 /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
3983 /* response on cards with no firmware is not enabled by OF */
3984 static void pci_set_command(struct pci_dev *dev)
3985 {
3986 #if defined(__powerpc__)
3987         unsigned int cmd;
3988
3989         pci_read_config_dword(dev, PCI_COMMAND, &cmd);
3990         cmd = (cmd | PCI_COMMAND_MEMORY );
3991         pci_write_config_dword(dev, PCI_COMMAND, cmd);
3992 #endif
3993 }
3994
3995 static int bttv_probe(struct pci_dev *dev, const struct pci_device_id *pci_id)
3996 {
3997         struct v4l2_frequency init_freq = {
3998                 .tuner = 0,
3999                 .type = V4L2_TUNER_ANALOG_TV,
4000                 .frequency = 980,
4001         };
4002         int result;
4003         unsigned char lat;
4004         struct bttv *btv;
4005         struct v4l2_ctrl_handler *hdl;
4006
4007         if (bttv_num == BTTV_MAX)
4008                 return -ENOMEM;
4009         pr_info("Bt8xx card found (%d)\n", bttv_num);
4010         bttvs[bttv_num] = btv = kzalloc(sizeof(*btv), GFP_KERNEL);
4011         if (btv == NULL) {
4012                 pr_err("out of memory\n");
4013                 return -ENOMEM;
4014         }
4015         btv->c.nr  = bttv_num;
4016         snprintf(btv->c.v4l2_dev.name, sizeof(btv->c.v4l2_dev.name),
4017                         "bttv%d", btv->c.nr);
4018
4019         /* initialize structs / fill in defaults */
4020         mutex_init(&btv->lock);
4021         spin_lock_init(&btv->s_lock);
4022         spin_lock_init(&btv->gpio_lock);
4023         init_waitqueue_head(&btv->i2c_queue);
4024         INIT_LIST_HEAD(&btv->c.subs);
4025         INIT_LIST_HEAD(&btv->capture);
4026         INIT_LIST_HEAD(&btv->vcapture);
4027
4028         init_timer(&btv->timeout);
4029         btv->timeout.function = bttv_irq_timeout;
4030         btv->timeout.data     = (unsigned long)btv;
4031
4032         btv->i2c_rc = -1;
4033         btv->tuner_type  = UNSET;
4034         btv->new_input   = UNSET;
4035         btv->has_radio=radio[btv->c.nr];
4036
4037         /* pci stuff (init, get irq/mmio, ... */
4038         btv->c.pci = dev;
4039         btv->id  = dev->device;
4040         if (pci_enable_device(dev)) {
4041                 pr_warn("%d: Can't enable device\n", btv->c.nr);
4042                 return -EIO;
4043         }
4044         if (pci_set_dma_mask(dev, DMA_BIT_MASK(32))) {
4045                 pr_warn("%d: No suitable DMA available\n", btv->c.nr);
4046                 return -EIO;
4047         }
4048         if (!request_mem_region(pci_resource_start(dev,0),
4049                                 pci_resource_len(dev,0),
4050                                 btv->c.v4l2_dev.name)) {
4051                 pr_warn("%d: can't request iomem (0x%llx)\n",
4052                         btv->c.nr,
4053                         (unsigned long long)pci_resource_start(dev, 0));
4054                 return -EBUSY;
4055         }
4056         pci_set_master(dev);
4057         pci_set_command(dev);
4058
4059         result = v4l2_device_register(&dev->dev, &btv->c.v4l2_dev);
4060         if (result < 0) {
4061                 pr_warn("%d: v4l2_device_register() failed\n", btv->c.nr);
4062                 goto fail0;
4063         }
4064         hdl = &btv->ctrl_handler;
4065         v4l2_ctrl_handler_init(hdl, 20);
4066         btv->c.v4l2_dev.ctrl_handler = hdl;
4067         v4l2_ctrl_handler_init(&btv->radio_ctrl_handler, 6);
4068
4069         btv->revision = dev->revision;
4070         pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
4071         pr_info("%d: Bt%d (rev %d) at %s, irq: %d, latency: %d, mmio: 0x%llx\n",
4072                 bttv_num, btv->id, btv->revision, pci_name(dev),
4073                 btv->c.pci->irq, lat,
4074                 (unsigned long long)pci_resource_start(dev, 0));
4075         schedule();
4076
4077         btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000);
4078         if (NULL == btv->bt848_mmio) {
4079                 pr_err("%d: ioremap() failed\n", btv->c.nr);
4080                 result = -EIO;
4081                 goto fail1;
4082         }
4083
4084         /* identify card */
4085         bttv_idcard(btv);
4086
4087         /* disable irqs, register irq handler */
4088         btwrite(0, BT848_INT_MASK);
4089         result = request_irq(btv->c.pci->irq, bttv_irq,
4090             IRQF_SHARED, btv->c.v4l2_dev.name, (void *)btv);
4091         if (result < 0) {
4092                 pr_err("%d: can't get IRQ %d\n",
4093                        bttv_num, btv->c.pci->irq);
4094                 goto fail1;
4095         }
4096
4097         if (0 != bttv_handle_chipset(btv)) {
4098                 result = -EIO;
4099                 goto fail2;
4100         }
4101
4102         /* init options from insmod args */
4103         btv->opt_combfilter = combfilter;
4104         bttv_ctrl_combfilter.def = combfilter;
4105         bttv_ctrl_lumafilter.def = lumafilter;
4106         btv->opt_automute   = automute;
4107         bttv_ctrl_automute.def = automute;
4108         bttv_ctrl_agc_crush.def = agc_crush;
4109         btv->opt_vcr_hack   = vcr_hack;
4110         bttv_ctrl_vcr_hack.def = vcr_hack;
4111         bttv_ctrl_whitecrush_upper.def = whitecrush_upper;
4112         bttv_ctrl_whitecrush_lower.def = whitecrush_lower;
4113         btv->opt_uv_ratio   = uv_ratio;
4114         bttv_ctrl_uv_ratio.def = uv_ratio;
4115         bttv_ctrl_full_luma.def = full_luma_range;
4116         bttv_ctrl_coring.def = coring;
4117
4118         /* fill struct bttv with some useful defaults */
4119         btv->init.btv         = btv;
4120         btv->init.ov.w.width  = 320;
4121         btv->init.ov.w.height = 240;
4122         btv->init.fmt         = format_by_fourcc(V4L2_PIX_FMT_BGR24);
4123         btv->init.width       = 320;
4124         btv->init.height      = 240;
4125         btv->init.ov.w.width  = 320;
4126         btv->init.ov.w.height = 240;
4127         btv->init.ov.field    = V4L2_FIELD_INTERLACED;
4128         btv->input = 0;
4129
4130         v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4131                         V4L2_CID_BRIGHTNESS, 0, 0xff00, 0x100, 32768);
4132         v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4133                         V4L2_CID_CONTRAST, 0, 0xff80, 0x80, 0x6c00);
4134         v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4135                         V4L2_CID_SATURATION, 0, 0xff80, 0x80, 32768);
4136         v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4137                         V4L2_CID_COLOR_KILLER, 0, 1, 1, 0);
4138         v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4139                         V4L2_CID_HUE, 0, 0xff00, 0x100, 32768);
4140         v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4141                         V4L2_CID_CHROMA_AGC, 0, 1, 1, !!chroma_agc);
4142         v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4143                 V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
4144         if (btv->volume_gpio)
4145                 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4146                         V4L2_CID_AUDIO_VOLUME, 0, 0xff00, 0x100, 0xff00);
4147         v4l2_ctrl_new_custom(hdl, &bttv_ctrl_combfilter, NULL);
4148         v4l2_ctrl_new_custom(hdl, &bttv_ctrl_automute, NULL);
4149         v4l2_ctrl_new_custom(hdl, &bttv_ctrl_lumafilter, NULL);
4150         v4l2_ctrl_new_custom(hdl, &bttv_ctrl_agc_crush, NULL);
4151         v4l2_ctrl_new_custom(hdl, &bttv_ctrl_vcr_hack, NULL);
4152         v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_lower, NULL);
4153         v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_upper, NULL);
4154         v4l2_ctrl_new_custom(hdl, &bttv_ctrl_uv_ratio, NULL);
4155         v4l2_ctrl_new_custom(hdl, &bttv_ctrl_full_luma, NULL);
4156         v4l2_ctrl_new_custom(hdl, &bttv_ctrl_coring, NULL);
4157
4158         /* initialize hardware */
4159         if (bttv_gpio)
4160                 bttv_gpio_tracking(btv,"pre-init");
4161
4162         bttv_risc_init_main(btv);
4163         init_bt848(btv);
4164
4165         /* gpio */
4166         btwrite(0x00, BT848_GPIO_REG_INP);
4167         btwrite(0x00, BT848_GPIO_OUT_EN);
4168         if (bttv_verbose)
4169                 bttv_gpio_tracking(btv,"init");
4170
4171         /* needs to be done before i2c is registered */
4172         bttv_init_card1(btv);
4173
4174         /* register i2c + gpio */
4175         init_bttv_i2c(btv);
4176
4177         /* some card-specific stuff (needs working i2c) */
4178         bttv_init_card2(btv);
4179         bttv_init_tuner(btv);
4180         if (btv->tuner_type != TUNER_ABSENT) {
4181                 bttv_set_frequency(btv, &init_freq);
4182                 btv->radio_freq = 90500 * 16; /* 90.5Mhz default */
4183         }
4184         btv->std = V4L2_STD_PAL;
4185         init_irqreg(btv);
4186         if (!bttv_tvcards[btv->c.type].no_video)
4187                 v4l2_ctrl_handler_setup(hdl);
4188         if (hdl->error) {
4189                 result = hdl->error;
4190                 goto fail2;
4191         }
4192         /* mute device */
4193         audio_mute(btv, 1);
4194
4195         /* register video4linux + input */
4196         if (!bttv_tvcards[btv->c.type].no_video) {
4197                 v4l2_ctrl_add_handler(&btv->radio_ctrl_handler, hdl,
4198                                 v4l2_ctrl_radio_filter);
4199                 if (btv->radio_ctrl_handler.error) {
4200                         result = btv->radio_ctrl_handler.error;
4201                         goto fail2;
4202                 }
4203                 set_input(btv, 0, btv->tvnorm);
4204                 bttv_crop_reset(&btv->crop[0], btv->tvnorm);
4205                 btv->crop[1] = btv->crop[0]; /* current = default */
4206                 disclaim_vbi_lines(btv);
4207                 disclaim_video_lines(btv);
4208                 bttv_register_video(btv);
4209         }
4210
4211         /* add subdevices and autoload dvb-bt8xx if needed */
4212         if (bttv_tvcards[btv->c.type].has_dvb) {
4213                 bttv_sub_add_device(&btv->c, "dvb");
4214                 request_modules(btv);
4215         }
4216
4217         if (!disable_ir) {
4218                 init_bttv_i2c_ir(btv);
4219                 bttv_input_init(btv);
4220         }
4221
4222         /* everything is fine */
4223         bttv_num++;
4224         return 0;
4225
4226 fail2:
4227         free_irq(btv->c.pci->irq,btv);
4228
4229 fail1:
4230         v4l2_ctrl_handler_free(&btv->ctrl_handler);
4231         v4l2_ctrl_handler_free(&btv->radio_ctrl_handler);
4232         v4l2_device_unregister(&btv->c.v4l2_dev);
4233
4234 fail0:
4235         if (btv->bt848_mmio)
4236                 iounmap(btv->bt848_mmio);
4237         release_mem_region(pci_resource_start(btv->c.pci,0),
4238                            pci_resource_len(btv->c.pci,0));
4239         pci_disable_device(btv->c.pci);
4240         return result;
4241 }
4242
4243 static void bttv_remove(struct pci_dev *pci_dev)
4244 {
4245         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
4246         struct bttv *btv = to_bttv(v4l2_dev);
4247
4248         if (bttv_verbose)
4249                 pr_info("%d: unloading\n", btv->c.nr);
4250
4251         if (bttv_tvcards[btv->c.type].has_dvb)
4252                 flush_request_modules(btv);
4253
4254         /* shutdown everything (DMA+IRQs) */
4255         btand(~15, BT848_GPIO_DMA_CTL);
4256         btwrite(0, BT848_INT_MASK);
4257         btwrite(~0x0, BT848_INT_STAT);
4258         btwrite(0x0, BT848_GPIO_OUT_EN);
4259         if (bttv_gpio)
4260                 bttv_gpio_tracking(btv,"cleanup");
4261
4262         /* tell gpio modules we are leaving ... */
4263         btv->shutdown=1;
4264         bttv_input_fini(btv);
4265         bttv_sub_del_devices(&btv->c);
4266
4267         /* unregister i2c_bus + input */
4268         fini_bttv_i2c(btv);
4269
4270         /* unregister video4linux */
4271         bttv_unregister_video(btv);
4272
4273         /* free allocated memory */
4274         v4l2_ctrl_handler_free(&btv->ctrl_handler);
4275         v4l2_ctrl_handler_free(&btv->radio_ctrl_handler);
4276         btcx_riscmem_free(btv->c.pci,&btv->main);
4277
4278         /* free resources */
4279         free_irq(btv->c.pci->irq,btv);
4280         iounmap(btv->bt848_mmio);
4281         release_mem_region(pci_resource_start(btv->c.pci,0),
4282                            pci_resource_len(btv->c.pci,0));
4283         pci_disable_device(btv->c.pci);
4284
4285         v4l2_device_unregister(&btv->c.v4l2_dev);
4286         bttvs[btv->c.nr] = NULL;
4287         kfree(btv);
4288
4289         return;
4290 }
4291
4292 #ifdef CONFIG_PM
4293 static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state)
4294 {
4295         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
4296         struct bttv *btv = to_bttv(v4l2_dev);
4297         struct bttv_buffer_set idle;
4298         unsigned long flags;
4299
4300         dprintk("%d: suspend %d\n", btv->c.nr, state.event);
4301
4302         /* stop dma + irqs */
4303         spin_lock_irqsave(&btv->s_lock,flags);
4304         memset(&idle, 0, sizeof(idle));
4305         btv->state.video = btv->curr;
4306         btv->state.vbi   = btv->cvbi;
4307         btv->state.loop_irq = btv->loop_irq;
4308         btv->curr = idle;
4309         btv->loop_irq = 0;
4310         bttv_buffer_activate_video(btv, &idle);
4311         bttv_buffer_activate_vbi(btv, NULL);
4312         bttv_set_dma(btv, 0);
4313         btwrite(0, BT848_INT_MASK);
4314         spin_unlock_irqrestore(&btv->s_lock,flags);
4315
4316         /* save bt878 state */
4317         btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN);
4318         btv->state.gpio_data   = gpio_read();
4319
4320         /* save pci state */
4321         pci_save_state(pci_dev);
4322         if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
4323                 pci_disable_device(pci_dev);
4324                 btv->state.disabled = 1;
4325         }
4326         return 0;
4327 }
4328
4329 static int bttv_resume(struct pci_dev *pci_dev)
4330 {
4331         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
4332         struct bttv *btv = to_bttv(v4l2_dev);
4333         unsigned long flags;
4334         int err;
4335
4336         dprintk("%d: resume\n", btv->c.nr);
4337
4338         /* restore pci state */
4339         if (btv->state.disabled) {
4340                 err=pci_enable_device(pci_dev);
4341                 if (err) {
4342                         pr_warn("%d: Can't enable device\n", btv->c.nr);
4343                         return err;
4344                 }
4345                 btv->state.disabled = 0;
4346         }
4347         err=pci_set_power_state(pci_dev, PCI_D0);
4348         if (err) {
4349                 pci_disable_device(pci_dev);
4350                 pr_warn("%d: Can't enable device\n", btv->c.nr);
4351                 btv->state.disabled = 1;
4352                 return err;
4353         }
4354
4355         pci_restore_state(pci_dev);
4356
4357         /* restore bt878 state */
4358         bttv_reinit_bt848(btv);
4359         gpio_inout(0xffffff, btv->state.gpio_enable);
4360         gpio_write(btv->state.gpio_data);
4361
4362         /* restart dma */
4363         spin_lock_irqsave(&btv->s_lock,flags);
4364         btv->curr = btv->state.video;
4365         btv->cvbi = btv->state.vbi;
4366         btv->loop_irq = btv->state.loop_irq;
4367         bttv_buffer_activate_video(btv, &btv->curr);
4368         bttv_buffer_activate_vbi(btv, btv->cvbi);
4369         bttv_set_dma(btv, 0);
4370         spin_unlock_irqrestore(&btv->s_lock,flags);
4371         return 0;
4372 }
4373 #endif
4374
4375 static struct pci_device_id bttv_pci_tbl[] = {
4376         {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT848), 0},
4377         {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT849), 0},
4378         {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT878), 0},
4379         {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT879), 0},
4380         {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_FUSION879), 0},
4381         {0,}
4382 };
4383
4384 MODULE_DEVICE_TABLE(pci, bttv_pci_tbl);
4385
4386 static struct pci_driver bttv_pci_driver = {
4387         .name     = "bttv",
4388         .id_table = bttv_pci_tbl,
4389         .probe    = bttv_probe,
4390         .remove   = bttv_remove,
4391 #ifdef CONFIG_PM
4392         .suspend  = bttv_suspend,
4393         .resume   = bttv_resume,
4394 #endif
4395 };
4396
4397 static int __init bttv_init_module(void)
4398 {
4399         int ret;
4400
4401         bttv_num = 0;
4402
4403         pr_info("driver version %s loaded\n", BTTV_VERSION);
4404         if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
4405                 gbuffers = 2;
4406         if (gbufsize > BTTV_MAX_FBUF)
4407                 gbufsize = BTTV_MAX_FBUF;
4408         gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
4409         if (bttv_verbose)
4410                 pr_info("using %d buffers with %dk (%d pages) each for capture\n",
4411                         gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT);
4412
4413         bttv_check_chipset();
4414
4415         ret = bus_register(&bttv_sub_bus_type);
4416         if (ret < 0) {
4417                 pr_warn("bus_register error: %d\n", ret);
4418                 return ret;
4419         }
4420         ret = pci_register_driver(&bttv_pci_driver);
4421         if (ret < 0)
4422                 bus_unregister(&bttv_sub_bus_type);
4423
4424         return ret;
4425 }
4426
4427 static void __exit bttv_cleanup_module(void)
4428 {
4429         pci_unregister_driver(&bttv_pci_driver);
4430         bus_unregister(&bttv_sub_bus_type);
4431 }
4432
4433 module_init(bttv_init_module);
4434 module_exit(bttv_cleanup_module);