SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/media/video/v4l2-common.c

   1 /*
   2  *      Video for Linux Two
   3  *
   4  *      A generic video device interface for the LINUX operating system
   5  *      using a set of device structures/vectors for low level operations.
   6  *
   7  *      This file replaces the videodev.c file that comes with the
   8  *      regular kernel distribution.
   9  *
  10  *      This program is free software; you can redistribute it and/or
  11  *      modify it under the terms of the GNU General Public License
  12  *      as published by the Free Software Foundation; either version
  13  *      2 of the License, or (at your option) any later version.
  14  *
  15  * Author:      Bill Dirks <bdirks@pacbell.net>
  16  *              based on code by Alan Cox, <alan@cymru.net>
  17  *
  18  */
  19
  20 /*
  21  * Video capture interface for Linux
  22  *
  23  *      A generic video device interface for the LINUX operating system
  24  *      using a set of device structures/vectors for low level operations.
  25  *
  26  *              This program is free software; you can redistribute it and/or
  27  *              modify it under the terms of the GNU General Public License
  28  *              as published by the Free Software Foundation; either version
  29  *              2 of the License, or (at your option) any later version.
  30  *
  31  * Author:      Alan Cox, <alan@redhat.com>
  32  *
  33  * Fixes:
  34  */
  35
  36 /*
  37  * Video4linux 1/2 integration by Justin Schoeman
  38  * <justin@suntiger.ee.up.ac.za>
  39  * 2.4 PROCFS support ported from 2.4 kernels by
  40  *  Iñaki García Etxebarria <garetxe@euskalnet.net>
  41  * Makefile fix by "W. Michael Petullo" <mike@flyn.org>
  42  * 2.4 devfs support ported from 2.4 kernels by
  43  *  Dan Merillat <dan@merillat.org>
  44  * Added Gerd Knorrs v4l1 enhancements (Justin Schoeman)
  45  */
  46
  47 #include <linux/config.h>
  48 #include <linux/module.h>
  49 #include <linux/types.h>
  50 #include <linux/kernel.h>
  51 #include <linux/sched.h>
  52 #include <linux/smp_lock.h>
  53 #include <linux/mm.h>
  54 #include <linux/string.h>
  55 #include <linux/errno.h>
  56 #include <asm/uaccess.h>
  57 #include <asm/system.h>
  58 #include <asm/pgtable.h>
  59 #include <asm/io.h>
  60 #include <asm/div64.h>
  61 #include <linux/video_decoder.h>
  62 #include <media/v4l2-common.h>
  63
  64 #ifdef CONFIG_KMOD
  65 #include <linux/kmod.h>
  66 #endif
  67
  68 #if defined(CONFIG_UST) || defined(CONFIG_UST_MODULE)
  69 #include <linux/ust.h>
  70 #endif
  71
  72
  73 #include <linux/videodev.h>
  74
  75 MODULE_AUTHOR("Bill Dirks, Justin Schoeman, Gerd Knorr");
  76 MODULE_DESCRIPTION("misc helper functions for v4l2 device drivers");
  77 MODULE_LICENSE("GPL");
  78
  79 /*
  80  *
  81  *      V 4 L 2   D R I V E R   H E L P E R   A P I
  82  *
  83  */
  84
  85 /*
  86  *  Video Standard Operations (contributed by Michael Schimek)
  87  */
  88
  89
  90 /* Fill in the fields of a v4l2_standard structure according to the
  91    'id' and 'transmission' parameters.  Returns negative on error.  */
  92 int v4l2_video_std_construct(struct v4l2_standard *vs,
  93                              int id, char *name)
  94 {
  95         u32 index = vs->index;
  96
  97         memset(vs, 0, sizeof(struct v4l2_standard));
  98         vs->index = index;
  99         vs->id    = id;
 100         if (id & V4L2_STD_525_60) {
 101                 vs->frameperiod.numerator = 1001;
 102                 vs->frameperiod.denominator = 30000;
 103                 vs->framelines = 525;
 104         } else {
 105                 vs->frameperiod.numerator = 1;
 106                 vs->frameperiod.denominator = 25;
 107                 vs->framelines = 625;
 108         }
 109         strlcpy(vs->name,name,sizeof(vs->name));
 110         return 0;
 111 }
 112
 113 /* ----------------------------------------------------------------- */
 114 /* priority handling                                                 */
 115
 116 #define V4L2_PRIO_VALID(val) (val == V4L2_PRIORITY_BACKGROUND   || \
 117                               val == V4L2_PRIORITY_INTERACTIVE  || \
 118                               val == V4L2_PRIORITY_RECORD)
 119
 120 int v4l2_prio_init(struct v4l2_prio_state *global)
 121 {
 122         memset(global,0,sizeof(*global));
 123         return 0;
 124 }
 125
 126 int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local,
 127                      enum v4l2_priority new)
 128 {
 129         if (!V4L2_PRIO_VALID(new))
 130                 return -EINVAL;
 131         if (*local == new)
 132                 return 0;
 133
 134         atomic_inc(&global->prios[new]);
 135         if (V4L2_PRIO_VALID(*local))
 136                 atomic_dec(&global->prios[*local]);
 137         *local = new;
 138         return 0;
 139 }
 140
 141 int v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local)
 142 {
 143         return v4l2_prio_change(global,local,V4L2_PRIORITY_DEFAULT);
 144 }
 145
 146 int v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority *local)
 147 {
 148         if (V4L2_PRIO_VALID(*local))
 149                 atomic_dec(&global->prios[*local]);
 150         return 0;
 151 }
 152
 153 enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global)
 154 {
 155         if (atomic_read(&global->prios[V4L2_PRIORITY_RECORD]) > 0)
 156                 return V4L2_PRIORITY_RECORD;
 157         if (atomic_read(&global->prios[V4L2_PRIORITY_INTERACTIVE]) > 0)
 158                 return V4L2_PRIORITY_INTERACTIVE;
 159         if (atomic_read(&global->prios[V4L2_PRIORITY_BACKGROUND]) > 0)
 160                 return V4L2_PRIORITY_BACKGROUND;
 161         return V4L2_PRIORITY_UNSET;
 162 }
 163
 164 int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local)
 165 {
 166         if (*local < v4l2_prio_max(global))
 167                 return -EBUSY;
 168         return 0;
 169 }
 170
 171
 172 /* ----------------------------------------------------------------- */
 173 /* some arrays for pretty-printing debug messages of enum types      */
 174
 175 char *v4l2_field_names[] = {
 176         [V4L2_FIELD_ANY]        = "any",
 177         [V4L2_FIELD_NONE]       = "none",
 178         [V4L2_FIELD_TOP]        = "top",
 179         [V4L2_FIELD_BOTTOM]     = "bottom",
 180         [V4L2_FIELD_INTERLACED] = "interlaced",
 181         [V4L2_FIELD_SEQ_TB]     = "seq-tb",
 182         [V4L2_FIELD_SEQ_BT]     = "seq-bt",
 183         [V4L2_FIELD_ALTERNATE]  = "alternate",
 184 };
 185
 186 char *v4l2_type_names[] = {
 187         [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "video-cap",
 188         [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "video-over",
 189         [V4L2_BUF_TYPE_VIDEO_OUTPUT]  = "video-out",
 190         [V4L2_BUF_TYPE_VBI_CAPTURE]   = "vbi-cap",
 191         [V4L2_BUF_TYPE_VBI_OUTPUT]    = "vbi-out",
 192 };
 193
 194 static char *v4l2_memory_names[] = {
 195         [V4L2_MEMORY_MMAP]    = "mmap",
 196         [V4L2_MEMORY_USERPTR] = "userptr",
 197         [V4L2_MEMORY_OVERLAY] = "overlay",
 198 };
 199
 200 #define prt_names(a,arr) (((a)>=0)&&((a)<ARRAY_SIZE(arr)))?arr[a]:"unknown"
 201
 202 /* ------------------------------------------------------------------ */
 203 /* debug help functions                                               */
 204
 205 #ifdef HAVE_V4L1
 206 static const char *v4l1_ioctls[] = {
 207         [_IOC_NR(VIDIOCGCAP)]       = "VIDIOCGCAP",
 208         [_IOC_NR(VIDIOCGCHAN)]      = "VIDIOCGCHAN",
 209         [_IOC_NR(VIDIOCSCHAN)]      = "VIDIOCSCHAN",
 210         [_IOC_NR(VIDIOCGTUNER)]     = "VIDIOCGTUNER",
 211         [_IOC_NR(VIDIOCSTUNER)]     = "VIDIOCSTUNER",
 212         [_IOC_NR(VIDIOCGPICT)]      = "VIDIOCGPICT",
 213         [_IOC_NR(VIDIOCSPICT)]      = "VIDIOCSPICT",
 214         [_IOC_NR(VIDIOCCAPTURE)]    = "VIDIOCCAPTURE",
 215         [_IOC_NR(VIDIOCGWIN)]       = "VIDIOCGWIN",
 216         [_IOC_NR(VIDIOCSWIN)]       = "VIDIOCSWIN",
 217         [_IOC_NR(VIDIOCGFBUF)]      = "VIDIOCGFBUF",
 218         [_IOC_NR(VIDIOCSFBUF)]      = "VIDIOCSFBUF",
 219         [_IOC_NR(VIDIOCKEY)]        = "VIDIOCKEY",
 220         [_IOC_NR(VIDIOCGFREQ)]      = "VIDIOCGFREQ",
 221         [_IOC_NR(VIDIOCSFREQ)]      = "VIDIOCSFREQ",
 222         [_IOC_NR(VIDIOCGAUDIO)]     = "VIDIOCGAUDIO",
 223         [_IOC_NR(VIDIOCSAUDIO)]     = "VIDIOCSAUDIO",
 224         [_IOC_NR(VIDIOCSYNC)]       = "VIDIOCSYNC",
 225         [_IOC_NR(VIDIOCMCAPTURE)]   = "VIDIOCMCAPTURE",
 226         [_IOC_NR(VIDIOCGMBUF)]      = "VIDIOCGMBUF",
 227         [_IOC_NR(VIDIOCGUNIT)]      = "VIDIOCGUNIT",
 228         [_IOC_NR(VIDIOCGCAPTURE)]   = "VIDIOCGCAPTURE",
 229         [_IOC_NR(VIDIOCSCAPTURE)]   = "VIDIOCSCAPTURE",
 230         [_IOC_NR(VIDIOCSPLAYMODE)]  = "VIDIOCSPLAYMODE",
 231         [_IOC_NR(VIDIOCSWRITEMODE)] = "VIDIOCSWRITEMODE",
 232         [_IOC_NR(VIDIOCGPLAYINFO)]  = "VIDIOCGPLAYINFO",
 233         [_IOC_NR(VIDIOCSMICROCODE)] = "VIDIOCSMICROCODE",
 234         [_IOC_NR(VIDIOCGVBIFMT)]    = "VIDIOCGVBIFMT",
 235         [_IOC_NR(VIDIOCSVBIFMT)]    = "VIDIOCSVBIFMT"
 236 };
 237 #define V4L1_IOCTLS ARRAY_SIZE(v4l1_ioctls)
 238 #endif
 239
 240 static const char *v4l2_ioctls[] = {
 241         [_IOC_NR(VIDIOC_QUERYCAP)]         = "VIDIOC_QUERYCAP",
 242         [_IOC_NR(VIDIOC_RESERVED)]         = "VIDIOC_RESERVED",
 243         [_IOC_NR(VIDIOC_ENUM_FMT)]         = "VIDIOC_ENUM_FMT",
 244         [_IOC_NR(VIDIOC_G_FMT)]            = "VIDIOC_G_FMT",
 245         [_IOC_NR(VIDIOC_S_FMT)]            = "VIDIOC_S_FMT",
 246         [_IOC_NR(VIDIOC_G_MPEGCOMP)]       = "VIDIOC_G_MPEGCOMP",
 247         [_IOC_NR(VIDIOC_S_MPEGCOMP)]       = "VIDIOC_S_MPEGCOMP",
 248         [_IOC_NR(VIDIOC_REQBUFS)]          = "VIDIOC_REQBUFS",
 249         [_IOC_NR(VIDIOC_QUERYBUF)]         = "VIDIOC_QUERYBUF",
 250         [_IOC_NR(VIDIOC_G_FBUF)]           = "VIDIOC_G_FBUF",
 251         [_IOC_NR(VIDIOC_S_FBUF)]           = "VIDIOC_S_FBUF",
 252         [_IOC_NR(VIDIOC_OVERLAY)]          = "VIDIOC_OVERLAY",
 253         [_IOC_NR(VIDIOC_QBUF)]             = "VIDIOC_QBUF",
 254         [_IOC_NR(VIDIOC_DQBUF)]            = "VIDIOC_DQBUF",
 255         [_IOC_NR(VIDIOC_STREAMON)]         = "VIDIOC_STREAMON",
 256         [_IOC_NR(VIDIOC_STREAMOFF)]        = "VIDIOC_STREAMOFF",
 257         [_IOC_NR(VIDIOC_G_PARM)]           = "VIDIOC_G_PARM",
 258         [_IOC_NR(VIDIOC_S_PARM)]           = "VIDIOC_S_PARM",
 259         [_IOC_NR(VIDIOC_G_STD)]            = "VIDIOC_G_STD",
 260         [_IOC_NR(VIDIOC_S_STD)]            = "VIDIOC_S_STD",
 261         [_IOC_NR(VIDIOC_ENUMSTD)]          = "VIDIOC_ENUMSTD",
 262         [_IOC_NR(VIDIOC_ENUMINPUT)]        = "VIDIOC_ENUMINPUT",
 263         [_IOC_NR(VIDIOC_G_CTRL)]           = "VIDIOC_G_CTRL",
 264         [_IOC_NR(VIDIOC_S_CTRL)]           = "VIDIOC_S_CTRL",
 265         [_IOC_NR(VIDIOC_G_TUNER)]          = "VIDIOC_G_TUNER",
 266         [_IOC_NR(VIDIOC_S_TUNER)]          = "VIDIOC_S_TUNER",
 267         [_IOC_NR(VIDIOC_G_AUDIO)]          = "VIDIOC_G_AUDIO",
 268         [_IOC_NR(VIDIOC_S_AUDIO)]          = "VIDIOC_S_AUDIO",
 269         [_IOC_NR(VIDIOC_QUERYCTRL)]        = "VIDIOC_QUERYCTRL",
 270         [_IOC_NR(VIDIOC_QUERYMENU)]        = "VIDIOC_QUERYMENU",
 271         [_IOC_NR(VIDIOC_G_INPUT)]          = "VIDIOC_G_INPUT",
 272         [_IOC_NR(VIDIOC_S_INPUT)]          = "VIDIOC_S_INPUT",
 273         [_IOC_NR(VIDIOC_G_OUTPUT)]         = "VIDIOC_G_OUTPUT",
 274         [_IOC_NR(VIDIOC_S_OUTPUT)]         = "VIDIOC_S_OUTPUT",
 275         [_IOC_NR(VIDIOC_ENUMOUTPUT)]       = "VIDIOC_ENUMOUTPUT",
 276         [_IOC_NR(VIDIOC_G_AUDOUT)]         = "VIDIOC_G_AUDOUT",
 277         [_IOC_NR(VIDIOC_S_AUDOUT)]         = "VIDIOC_S_AUDOUT",
 278         [_IOC_NR(VIDIOC_G_MODULATOR)]      = "VIDIOC_G_MODULATOR",
 279         [_IOC_NR(VIDIOC_S_MODULATOR)]      = "VIDIOC_S_MODULATOR",
 280         [_IOC_NR(VIDIOC_G_FREQUENCY)]      = "VIDIOC_G_FREQUENCY",
 281         [_IOC_NR(VIDIOC_S_FREQUENCY)]      = "VIDIOC_S_FREQUENCY",
 282         [_IOC_NR(VIDIOC_CROPCAP)]          = "VIDIOC_CROPCAP",
 283         [_IOC_NR(VIDIOC_G_CROP)]           = "VIDIOC_G_CROP",
 284         [_IOC_NR(VIDIOC_S_CROP)]           = "VIDIOC_S_CROP",
 285         [_IOC_NR(VIDIOC_G_JPEGCOMP)]       = "VIDIOC_G_JPEGCOMP",
 286         [_IOC_NR(VIDIOC_S_JPEGCOMP)]       = "VIDIOC_S_JPEGCOMP",
 287         [_IOC_NR(VIDIOC_QUERYSTD)]         = "VIDIOC_QUERYSTD",
 288         [_IOC_NR(VIDIOC_TRY_FMT)]          = "VIDIOC_TRY_FMT",
 289         [_IOC_NR(VIDIOC_ENUMAUDIO)]        = "VIDIOC_ENUMAUDIO",
 290         [_IOC_NR(VIDIOC_ENUMAUDOUT)]       = "VIDIOC_ENUMAUDOUT",
 291         [_IOC_NR(VIDIOC_G_PRIORITY)]       = "VIDIOC_G_PRIORITY",
 292         [_IOC_NR(VIDIOC_S_PRIORITY)]       = "VIDIOC_S_PRIORITY",
 293 #if 1
 294         [_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP",
 295 #endif
 296         [_IOC_NR(VIDIOC_LOG_STATUS)]       = "VIDIOC_LOG_STATUS"
 297 };
 298 #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
 299
 300 static const char *v4l2_int_ioctls[] = {
 301 #ifdef HAVE_VIDEO_DECODER
 302         [_IOC_NR(DECODER_GET_CAPABILITIES)]    = "DECODER_GET_CAPABILITIES",
 303         [_IOC_NR(DECODER_GET_STATUS)]          = "DECODER_GET_STATUS",
 304         [_IOC_NR(DECODER_SET_NORM)]            = "DECODER_SET_NORM",
 305         [_IOC_NR(DECODER_SET_INPUT)]           = "DECODER_SET_INPUT",
 306         [_IOC_NR(DECODER_SET_OUTPUT)]          = "DECODER_SET_OUTPUT",
 307         [_IOC_NR(DECODER_ENABLE_OUTPUT)]       = "DECODER_ENABLE_OUTPUT",
 308         [_IOC_NR(DECODER_SET_PICTURE)]         = "DECODER_SET_PICTURE",
 309         [_IOC_NR(DECODER_SET_GPIO)]            = "DECODER_SET_GPIO",
 310         [_IOC_NR(DECODER_INIT)]                = "DECODER_INIT",
 311         [_IOC_NR(DECODER_SET_VBI_BYPASS)]      = "DECODER_SET_VBI_BYPASS",
 312         [_IOC_NR(DECODER_DUMP)]                = "DECODER_DUMP",
 313 #endif
 314         [_IOC_NR(AUDC_SET_RADIO)]              = "AUDC_SET_RADIO",
 315
 316         [_IOC_NR(TUNER_SET_TYPE_ADDR)]         = "TUNER_SET_TYPE_ADDR",
 317         [_IOC_NR(TUNER_SET_STANDBY)]           = "TUNER_SET_STANDBY",
 318         [_IOC_NR(TDA9887_SET_CONFIG)]          = "TDA9887_SET_CONFIG",
 319
 320         [_IOC_NR(VIDIOC_INT_S_REGISTER)]       = "VIDIOC_INT_S_REGISTER",
 321         [_IOC_NR(VIDIOC_INT_G_REGISTER)]       = "VIDIOC_INT_G_REGISTER",
 322         [_IOC_NR(VIDIOC_INT_RESET)]            = "VIDIOC_INT_RESET",
 323         [_IOC_NR(VIDIOC_INT_AUDIO_CLOCK_FREQ)] = "VIDIOC_INT_AUDIO_CLOCK_FREQ",
 324         [_IOC_NR(VIDIOC_INT_DECODE_VBI_LINE)]  = "VIDIOC_INT_DECODE_VBI_LINE",
 325         [_IOC_NR(VIDIOC_INT_S_VBI_DATA)]       = "VIDIOC_INT_S_VBI_DATA",
 326         [_IOC_NR(VIDIOC_INT_G_VBI_DATA)]       = "VIDIOC_INT_G_VBI_DATA",
 327         [_IOC_NR(VIDIOC_INT_G_CHIP_IDENT)]     = "VIDIOC_INT_G_CHIP_IDENT",
 328         [_IOC_NR(VIDIOC_INT_I2S_CLOCK_FREQ)]   = "VIDIOC_INT_I2S_CLOCK_FREQ"
 329 };
 330 #define V4L2_INT_IOCTLS ARRAY_SIZE(v4l2_int_ioctls)
 331
 332 static void v4l_print_pix_fmt (char *s, struct v4l2_pix_format *fmt)
 333 {
 334         printk ("%s: width=%d, height=%d, format=%d, field=%s, "
 335                 "bytesperline=%d sizeimage=%d, colorspace=%d\n", s,
 336                 fmt->width,fmt->height,fmt->pixelformat,
 337                 prt_names(fmt->field,v4l2_field_names),
 338                 fmt->bytesperline,fmt->sizeimage,fmt->colorspace);
 339 };
 340
 341 /* Common ioctl debug function. This function can be used by
 342    external ioctl messages as well as internal V4L ioctl */
 343 void v4l_printk_ioctl(unsigned int cmd)
 344 {
 345         char *dir;
 346
 347         switch (_IOC_DIR(cmd)) {
 348         case _IOC_NONE:              dir = "--"; break;
 349         case _IOC_READ:              dir = "r-"; break;
 350         case _IOC_WRITE:             dir = "-w"; break;
 351         case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
 352         default:                     dir = "*ERR*"; break;
 353         }
 354         switch (_IOC_TYPE(cmd)) {
 355         case 'd':
 356                 printk("v4l2_int ioctl %s, dir=%s (0x%08x)\n",
 357                        (_IOC_NR(cmd) < V4L2_INT_IOCTLS) ?
 358                        v4l2_int_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
 359                 break;
 360 #ifdef HAVE_V4L1
 361         case 'v':
 362                 printk("v4l1 ioctl %s, dir=%s (0x%08x)\n",
 363                        (_IOC_NR(cmd) < V4L1_IOCTLS) ?
 364                        v4l1_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
 365                 break;
 366 #endif
 367         case 'V':
 368                 printk("v4l2 ioctl %s, dir=%s (0x%08x)\n",
 369                        (_IOC_NR(cmd) < V4L2_IOCTLS) ?
 370                        v4l2_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
 371                 break;
 372
 373         default:
 374                 printk("unknown ioctl '%c', dir=%s, #%d (0x%08x)\n",
 375                        _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd);
 376         }
 377 }
 378
 379 /* Common ioctl debug function. This function can be used by
 380    external ioctl messages as well as internal V4L ioctl and its
 381    arguments */
 382 void v4l_printk_ioctl_arg(char *s,unsigned int cmd, void *arg)
 383 {
 384         printk(s);
 385         printk(": ");
 386         v4l_printk_ioctl(cmd);
 387         switch (cmd) {
 388         case VIDIOC_INT_G_CHIP_IDENT:
 389         {
 390                 enum v4l2_chip_ident  *p=arg;
 391                 printk ("%s: chip ident=%d\n", s, *p);
 392                 break;
 393         }
 394         case VIDIOC_G_PRIORITY:
 395         case VIDIOC_S_PRIORITY:
 396         {
 397                 enum v4l2_priority *p=arg;
 398                 printk ("%s: priority=%d\n", s, *p);
 399                 break;
 400         }
 401         case VIDIOC_INT_S_TUNER_MODE:
 402         {
 403                 enum v4l2_tuner_type *p=arg;
 404                 printk ("%s: tuner type=%d\n", s, *p);
 405                 break;
 406         }
 407         case DECODER_SET_VBI_BYPASS:
 408         case DECODER_ENABLE_OUTPUT:
 409         case DECODER_GET_STATUS:
 410         case DECODER_SET_OUTPUT:
 411         case DECODER_SET_INPUT:
 412         case DECODER_SET_GPIO:
 413         case DECODER_SET_NORM:
 414         case VIDIOCCAPTURE:
 415         case VIDIOCSYNC:
 416         case VIDIOCSWRITEMODE:
 417         case TUNER_SET_TYPE_ADDR:
 418         case TUNER_SET_STANDBY:
 419         case TDA9887_SET_CONFIG:
 420         case VIDIOC_OVERLAY_OLD:
 421         case VIDIOC_STREAMOFF:
 422         case VIDIOC_G_OUTPUT:
 423         case VIDIOC_S_OUTPUT:
 424         case VIDIOC_STREAMON:
 425         case VIDIOC_G_INPUT:
 426         case VIDIOC_OVERLAY:
 427         case VIDIOC_S_INPUT:
 428         {
 429                 int *p=arg;
 430                 printk ("%s: value=%d\n", s, *p);
 431                 break;
 432         }
 433         case VIDIOC_G_AUDIO:
 434         case VIDIOC_S_AUDIO:
 435         case VIDIOC_ENUMAUDIO:
 436         case VIDIOC_G_AUDIO_OLD:
 437         {
 438                 struct v4l2_audio *p=arg;
 439
 440                 printk ("%s: index=%d, name=%s, capability=%d, mode=%d\n",
 441                         s,p->index, p->name,p->capability, p->mode);
 442                 break;
 443         }
 444         case VIDIOC_G_AUDOUT:
 445         case VIDIOC_S_AUDOUT:
 446         case VIDIOC_ENUMAUDOUT:
 447         case VIDIOC_G_AUDOUT_OLD:
 448         {
 449                 struct v4l2_audioout *p=arg;
 450                 printk ("%s: index=%d, name=%s, capability=%d, mode=%d\n", s,
 451                                 p->index, p->name, p->capability,p->mode);
 452                 break;
 453         }
 454         case VIDIOC_QBUF:
 455         case VIDIOC_DQBUF:
 456         case VIDIOC_QUERYBUF:
 457         {
 458                 struct v4l2_buffer *p=arg;
 459                 struct v4l2_timecode *tc=&p->timecode;
 460                 printk ("%s: %02ld:%02d:%02d.%08ld index=%d, type=%s, "
 461                         "bytesused=%d, flags=0x%08x, "
 462                         "field=%0d, sequence=%d, memory=%s, offset/userptr=0x%08lx\n",
 463                                 s,
 464                                 (p->timestamp.tv_sec/3600),
 465                                 (int)(p->timestamp.tv_sec/60)%60,
 466                                 (int)(p->timestamp.tv_sec%60),
 467                                 p->timestamp.tv_usec,
 468                                 p->index,
 469                                 prt_names(p->type,v4l2_type_names),
 470                                 p->bytesused,p->flags,
 471                                 p->field,p->sequence,
 472                                 prt_names(p->memory,v4l2_memory_names),
 473                                 p->m.userptr);
 474                 printk ("%s: timecode= %02d:%02d:%02d type=%d, "
 475                         "flags=0x%08x, frames=%d, userbits=0x%p\n",
 476                                 s,tc->hours,tc->minutes,tc->seconds,
 477                                 tc->type, tc->flags, tc->frames, tc->userbits);
 478                 break;
 479         }
 480         case VIDIOC_QUERYCAP:
 481         {
 482                 struct v4l2_capability *p=arg;
 483                 printk ("%s: driver=%s, card=%s, bus=%s, version=0x%08x, "
 484                         "capabilities=0x%08x\n", s,
 485                                 p->driver,p->card,p->bus_info,
 486                                 p->version,
 487                                 p->capabilities);
 488                 break;
 489         }
 490         case VIDIOC_G_CTRL:
 491         case VIDIOC_S_CTRL:
 492         case VIDIOC_S_CTRL_OLD:
 493         {
 494                 struct v4l2_control *p=arg;
 495                 printk ("%s: id=%d, value=%d\n", s, p->id, p->value);
 496                 break;
 497         }
 498         case VIDIOC_G_CROP:
 499         case VIDIOC_S_CROP:
 500         {
 501                 struct v4l2_crop *p=arg;
 502                 /*FIXME: Should also show rect structs */
 503                 printk ("%s: type=%d\n", s, p->type);
 504                 break;
 505         }
 506         case VIDIOC_CROPCAP:
 507         case VIDIOC_CROPCAP_OLD:
 508         {
 509                 struct v4l2_cropcap *p=arg;
 510                 /*FIXME: Should also show rect structs */
 511                 printk ("%s: type=%d\n", s, p->type);
 512                 break;
 513         }
 514         case VIDIOC_INT_DECODE_VBI_LINE:
 515         {
 516                 struct v4l2_decode_vbi_line *p=arg;
 517                 printk ("%s: is_second_field=%d, ptr=0x%08lx, line=%d, "
 518                         "type=%d\n", s,
 519                                 p->is_second_field,(unsigned long)p->p,p->line,p->type);
 520                 break;
 521         }
 522         case VIDIOC_ENUM_FMT:
 523         {
 524                 struct v4l2_fmtdesc *p=arg;
 525                 printk ("%s: index=%d, type=%d, flags=%d, description=%s,"
 526                         " pixelformat=%d\n", s,
 527                                 p->index, p->type, p->flags,p->description,
 528                                 p->pixelformat);
 529
 530                 break;
 531         }
 532         case VIDIOC_G_FMT:
 533         case VIDIOC_S_FMT:
 534         case VIDIOC_TRY_FMT:
 535         {
 536                 struct v4l2_format *p=arg;
 537                 printk ("%s: type=%s\n", s,
 538                                 prt_names(p->type,v4l2_type_names));
 539                 switch (p->type) {
 540                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 541                         v4l_print_pix_fmt (s, &p->fmt.pix);
 542                         break;
 543                 default:
 544                         break;
 545                 }
 546         }
 547         case VIDIOC_G_FBUF:
 548         case VIDIOC_S_FBUF:
 549         {
 550                 struct v4l2_framebuffer *p=arg;
 551                 printk ("%s: capability=%d, flags=%d, base=0x%08lx\n", s,
 552                                 p->capability,p->flags, (unsigned long)p->base);
 553                 v4l_print_pix_fmt (s, &p->fmt);
 554                 break;
 555         }
 556         case VIDIOC_G_FREQUENCY:
 557         case VIDIOC_S_FREQUENCY:
 558         {
 559                 struct v4l2_frequency *p=arg;
 560                 printk ("%s: tuner=%d, type=%d, frequency=%d\n", s,
 561                                 p->tuner,p->type,p->frequency);
 562                 break;
 563         }
 564         case VIDIOC_ENUMINPUT:
 565         {
 566                 struct v4l2_input *p=arg;
 567                 printk ("%s: index=%d, name=%s, type=%d, audioset=%d, "
 568                         "tuner=%d, std=%Ld, status=%d\n", s,
 569                                 p->index,p->name,p->type,p->audioset,
 570                                 p->tuner,
 571                                 (unsigned long long)p->std,
 572                                 p->status);
 573                 break;
 574         }
 575         case VIDIOC_G_JPEGCOMP:
 576         case VIDIOC_S_JPEGCOMP:
 577         {
 578                 struct v4l2_jpegcompression *p=arg;
 579                 printk ("%s: quality=%d, APPn=%d, APP_len=%d, COM_len=%d,"
 580                         " jpeg_markers=%d\n", s,
 581                                 p->quality,p->APPn,p->APP_len,
 582                                 p->COM_len,p->jpeg_markers);
 583                 break;
 584         }
 585         case VIDIOC_G_MODULATOR:
 586         case VIDIOC_S_MODULATOR:
 587         {
 588                 struct v4l2_modulator *p=arg;
 589                 printk ("%s: index=%d, name=%s, capability=%d, rangelow=%d,"
 590                         " rangehigh=%d, txsubchans=%d\n", s,
 591                                 p->index, p->name,p->capability,p->rangelow,
 592                                 p->rangehigh,p->txsubchans);
 593                 break;
 594         }
 595         case VIDIOC_G_MPEGCOMP:
 596         case VIDIOC_S_MPEGCOMP:
 597         {
 598                 struct v4l2_mpeg_compression *p=arg;
 599                 /*FIXME: Several fields not shown */
 600                 printk ("%s: ts_pid_pmt=%d, ts_pid_audio=%d, ts_pid_video=%d, "
 601                         "ts_pid_pcr=%d, ps_size=%d, au_sample_rate=%d, "
 602                         "au_pesid=%c, vi_frame_rate=%d, vi_frames_per_gop=%d, "
 603                         "vi_bframes_count=%d, vi_pesid=%c\n", s,
 604                                 p->ts_pid_pmt,p->ts_pid_audio, p->ts_pid_video,
 605                                 p->ts_pid_pcr, p->ps_size, p->au_sample_rate,
 606                                 p->au_pesid, p->vi_frame_rate,
 607                                 p->vi_frames_per_gop, p->vi_bframes_count,
 608                                 p->vi_pesid);
 609                 break;
 610         }
 611         case VIDIOC_ENUMOUTPUT:
 612         {
 613                 struct v4l2_output *p=arg;
 614                 printk ("%s: index=%d, name=%s,type=%d, audioset=%d, "
 615                         "modulator=%d, std=%Ld\n",
 616                                 s,p->index,p->name,p->type,p->audioset,
 617                                 p->modulator,
 618                                 (unsigned long long)p->std);
 619                 break;
 620         }
 621         case VIDIOC_QUERYCTRL:
 622         {
 623                 struct v4l2_queryctrl *p=arg;
 624                 printk ("%s: id=%d, type=%d, name=%s, min/max=%d/%d,"
 625                         " step=%d, default=%d, flags=0x%08x\n", s,
 626                                 p->id,p->type,p->name,p->minimum,p->maximum,
 627                                 p->step,p->default_value,p->flags);
 628                 break;
 629         }
 630         case VIDIOC_QUERYMENU:
 631         {
 632                 struct v4l2_querymenu *p=arg;
 633                 printk ("%s: id=%d, index=%d, name=%s\n", s,
 634                                 p->id,p->index,p->name);
 635                 break;
 636         }
 637         case VIDIOC_INT_G_REGISTER:
 638         case VIDIOC_INT_S_REGISTER:
 639         {
 640                 struct v4l2_register *p=arg;
 641                 printk ("%s: i2c_id=%d, reg=%lu, val=%d\n", s,
 642                                 p->i2c_id,p->reg,p->val);
 643
 644                 break;
 645         }
 646         case VIDIOC_REQBUFS:
 647         {
 648                 struct v4l2_requestbuffers *p=arg;
 649                 printk ("%s: count=%d, type=%s, memory=%s\n", s,
 650                                 p->count,
 651                                 prt_names(p->type,v4l2_type_names),
 652                                 prt_names(p->memory,v4l2_memory_names));
 653                 break;
 654         }
 655         case VIDIOC_INT_S_AUDIO_ROUTING:
 656         case VIDIOC_INT_S_VIDEO_ROUTING:
 657         case VIDIOC_INT_G_AUDIO_ROUTING:
 658         case VIDIOC_INT_G_VIDEO_ROUTING:
 659         {
 660                 struct v4l2_routing  *p=arg;
 661                 printk ("%s: input=0x%x, output=0x%x\n", s, p->input, p->output);
 662                 break;
 663         }
 664         case VIDIOC_G_SLICED_VBI_CAP:
 665         {
 666                 struct v4l2_sliced_vbi_cap *p=arg;
 667                 printk ("%s: service_set=%d\n", s,
 668                                 p->service_set);
 669                 break;
 670         }
 671         case VIDIOC_INT_S_VBI_DATA:
 672         case VIDIOC_INT_G_VBI_DATA:
 673         {
 674                 struct v4l2_sliced_vbi_data  *p=arg;
 675                 printk ("%s: id=%d, field=%d, line=%d\n", s,
 676                                 p->id, p->field, p->line);
 677                 break;
 678         }
 679         case VIDIOC_ENUMSTD:
 680         {
 681                 struct v4l2_standard *p=arg;
 682                 printk ("%s: index=%d, id=%Ld, name=%s, fps=%d/%d, "
 683                         "framelines=%d\n", s, p->index,
 684                                 (unsigned long long)p->id, p->name,
 685                                 p->frameperiod.numerator,
 686                                 p->frameperiod.denominator,
 687                                 p->framelines);
 688
 689                 break;
 690         }
 691         case VIDIOC_G_PARM:
 692         case VIDIOC_S_PARM:
 693         case VIDIOC_S_PARM_OLD:
 694         {
 695                 struct v4l2_streamparm *p=arg;
 696                 printk ("%s: type=%d\n", s, p->type);
 697
 698                 break;
 699         }
 700         case VIDIOC_G_TUNER:
 701         case VIDIOC_S_TUNER:
 702         {
 703                 struct v4l2_tuner *p=arg;
 704                 printk ("%s: index=%d, name=%s, type=%d, capability=%d, "
 705                         "rangelow=%d, rangehigh=%d, signal=%d, afc=%d, "
 706                         "rxsubchans=%d, audmode=%d\n", s,
 707                                 p->index, p->name, p->type,
 708                                 p->capability, p->rangelow,p->rangehigh,
 709                                 p->rxsubchans, p->audmode, p->signal,
 710                                 p->afc);
 711                 break;
 712         }
 713         case VIDIOCGVBIFMT:
 714         case VIDIOCSVBIFMT:
 715         {
 716                 struct vbi_format *p=arg;
 717                 printk ("%s: sampling_rate=%d, samples_per_line=%d, "
 718                         "sample_format=%d, start=%d/%d, count=%d/%d, flags=%d\n", s,
 719                                 p->sampling_rate,p->samples_per_line,
 720                                 p->sample_format,p->start[0],p->start[1],
 721                                 p->count[0],p->count[1],p->flags);
 722                 break;
 723         }
 724         case VIDIOCGAUDIO:
 725         case VIDIOCSAUDIO:
 726         {
 727                 struct video_audio *p=arg;
 728                 printk ("%s: audio=%d, volume=%d, bass=%d, treble=%d, "
 729                         "flags=%d, name=%s, mode=%d, balance=%d, step=%d\n",
 730                                 s,p->audio,p->volume,p->bass, p->treble,
 731                                 p->flags,p->name,p->mode,p->balance,p->step);
 732                 break;
 733         }
 734         case VIDIOCGFBUF:
 735         case VIDIOCSFBUF:
 736         {
 737                 struct video_buffer *p=arg;
 738                 printk ("%s: base=%08lx, height=%d, width=%d, depth=%d, "
 739                         "bytesperline=%d\n", s,
 740                                 (unsigned long) p->base, p->height, p->width,
 741                                 p->depth,p->bytesperline);
 742                 break;
 743         }
 744         case VIDIOCGCAP:
 745         {
 746                 struct video_capability *p=arg;
 747                 printk ("%s: name=%s, type=%d, channels=%d, audios=%d, "
 748                         "maxwidth=%d, maxheight=%d, minwidth=%d, minheight=%d\n",
 749                                 s,p->name,p->type,p->channels,p->audios,
 750                                 p->maxwidth,p->maxheight,p->minwidth,
 751                                 p->minheight);
 752
 753                 break;
 754         }
 755         case VIDIOCGCAPTURE:
 756         case VIDIOCSCAPTURE:
 757         {
 758                 struct video_capture *p=arg;
 759                 printk ("%s: x=%d, y=%d, width=%d, height=%d, decimation=%d,"
 760                         " flags=%d\n", s,
 761                                 p->x, p->y,p->width, p->height,
 762                                 p->decimation,p->flags);
 763                 break;
 764         }
 765         case VIDIOCGCHAN:
 766         case VIDIOCSCHAN:
 767         {
 768                 struct video_channel *p=arg;
 769                 printk ("%s: channel=%d, name=%s, tuners=%d, flags=%d, "
 770                         "type=%d, norm=%d\n", s,
 771                                 p->channel,p->name,p->tuners,
 772                                 p->flags,p->type,p->norm);
 773
 774                 break;
 775         }
 776         case VIDIOCSMICROCODE:
 777         {
 778                 struct video_code *p=arg;
 779                 printk ("%s: loadwhat=%s, datasize=%d\n", s,
 780                                 p->loadwhat,p->datasize);
 781                 break;
 782         }
 783         case DECODER_GET_CAPABILITIES:
 784         {
 785                 struct video_decoder_capability *p=arg;
 786                 printk ("%s: flags=%d, inputs=%d, outputs=%d\n", s,
 787                                 p->flags,p->inputs,p->outputs);
 788                 break;
 789         }
 790         case DECODER_INIT:
 791         {
 792                 struct video_decoder_init *p=arg;
 793                 printk ("%s: len=%c\n", s, p->len);
 794                 break;
 795         }
 796         case VIDIOCGPLAYINFO:
 797         {
 798                 struct video_info *p=arg;
 799                 printk ("%s: frame_count=%d, h_size=%d, v_size=%d, "
 800                         "smpte_timecode=%d, picture_type=%d, "
 801                         "temporal_reference=%d, user_data=%s\n", s,
 802                                 p->frame_count, p->h_size,
 803                                 p->v_size, p->smpte_timecode,
 804                                 p->picture_type, p->temporal_reference,
 805                                 p->user_data);
 806                 break;
 807         }
 808         case VIDIOCKEY:
 809         {
 810                 struct video_key *p=arg;
 811                 printk ("%s: key=%s, flags=%d\n", s,
 812                                 p->key, p->flags);
 813                 break;
 814         }
 815         case VIDIOCGMBUF:
 816         {
 817                 struct video_mbuf *p=arg;
 818                 printk ("%s: size=%d, frames=%d, offsets=0x%08lx\n", s,
 819                                 p->size,
 820                                 p->frames,
 821                                 (unsigned long)p->offsets);
 822                 break;
 823         }
 824         case VIDIOCMCAPTURE:
 825         {
 826                 struct video_mmap *p=arg;
 827                 printk ("%s: frame=%d, height=%d, width=%d, format=%d\n", s,
 828                                 p->frame,
 829                                 p->height, p->width,
 830                                 p->format);
 831                 break;
 832         }
 833         case VIDIOCGPICT:
 834         case VIDIOCSPICT:
 835         case DECODER_SET_PICTURE:
 836         {
 837                 struct video_picture *p=arg;
 838
 839                 printk ("%s: brightness=%d, hue=%d, colour=%d, contrast=%d,"
 840                         " whiteness=%d, depth=%d, palette=%d\n", s,
 841                                 p->brightness, p->hue, p->colour,
 842                                 p->contrast, p->whiteness, p->depth,
 843                                 p->palette);
 844                 break;
 845         }
 846         case VIDIOCSPLAYMODE:
 847         {
 848                 struct video_play_mode *p=arg;
 849                 printk ("%s: mode=%d, p1=%d, p2=%d\n", s,
 850                                 p->mode,p->p1,p->p2);
 851                 break;
 852         }
 853         case VIDIOCGTUNER:
 854         case VIDIOCSTUNER:
 855         {
 856                 struct video_tuner *p=arg;
 857                 printk ("%s: tuner=%d, name=%s, rangelow=%ld, rangehigh=%ld, "
 858                         "flags=%d, mode=%d, signal=%d\n", s,
 859                                 p->tuner, p->name,p->rangelow, p->rangehigh,
 860                                 p->flags,p->mode, p->signal);
 861                 break;
 862         }
 863         case VIDIOCGUNIT:
 864         {
 865                 struct video_unit *p=arg;
 866                 printk ("%s: video=%d, vbi=%d, radio=%d, audio=%d, "
 867                         "teletext=%d\n", s,
 868                                 p->video,p->vbi,p->radio,p->audio,p->teletext);
 869                 break;
 870         }
 871         case VIDIOCGWIN:
 872         case VIDIOCSWIN:
 873         {
 874                 struct video_window *p=arg;
 875                 printk ("%s: x=%d, y=%d, width=%d, height=%d, chromakey=%d,"
 876                         " flags=%d, clipcount=%d\n", s,
 877                                 p->x, p->y,p->width, p->height,
 878                                 p->chromakey,p->flags,
 879                                 p->clipcount);
 880                 break;
 881         }
 882         case VIDIOC_INT_AUDIO_CLOCK_FREQ:
 883         case VIDIOC_INT_I2S_CLOCK_FREQ:
 884         case VIDIOC_INT_S_STANDBY:
 885         {
 886                 u32 *p=arg;
 887
 888                 printk ("%s: value=%d\n", s, *p);
 889                 break;
 890         }
 891         case VIDIOCGFREQ:
 892         case VIDIOCSFREQ:
 893         {
 894                 unsigned long *p=arg;
 895                 printk ("%s: value=%lu\n", s, *p);
 896                 break;
 897         }
 898         case VIDIOC_G_STD:
 899         case VIDIOC_S_STD:
 900         case VIDIOC_QUERYSTD:
 901         {
 902                 v4l2_std_id *p=arg;
 903
 904                 printk ("%s: value=%Lu\n", s, (unsigned long long)*p);
 905                 break;
 906         }
 907         }
 908 }
 909
 910 /* ----------------------------------------------------------------- */
 911
 912 EXPORT_SYMBOL(v4l2_video_std_construct);
 913
 914 EXPORT_SYMBOL(v4l2_prio_init);
 915 EXPORT_SYMBOL(v4l2_prio_change);
 916 EXPORT_SYMBOL(v4l2_prio_open);
 917 EXPORT_SYMBOL(v4l2_prio_close);
 918 EXPORT_SYMBOL(v4l2_prio_max);
 919 EXPORT_SYMBOL(v4l2_prio_check);
 920
 921 EXPORT_SYMBOL(v4l2_field_names);
 922 EXPORT_SYMBOL(v4l2_type_names);
 923 EXPORT_SYMBOL(v4l_printk_ioctl);
 924 EXPORT_SYMBOL(v4l_printk_ioctl_arg);
 925
 926 /*
 927  * Local variables:
 928  * c-basic-offset: 8
 929  * End:
 930  */