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_TUNER_MODE)]     = "VIDIOC_INT_S_TUNER_MODE",
 321         [_IOC_NR(VIDIOC_INT_S_REGISTER)]       = "VIDIOC_INT_S_REGISTER",
 322         [_IOC_NR(VIDIOC_INT_G_REGISTER)]       = "VIDIOC_INT_G_REGISTER",
 323         [_IOC_NR(VIDIOC_INT_RESET)]            = "VIDIOC_INT_RESET",
 324         [_IOC_NR(VIDIOC_INT_AUDIO_CLOCK_FREQ)] = "VIDIOC_INT_AUDIO_CLOCK_FREQ",
 325         [_IOC_NR(VIDIOC_INT_DECODE_VBI_LINE)]  = "VIDIOC_INT_DECODE_VBI_LINE",
 326         [_IOC_NR(VIDIOC_INT_S_VBI_DATA)]       = "VIDIOC_INT_S_VBI_DATA",
 327         [_IOC_NR(VIDIOC_INT_G_VBI_DATA)]       = "VIDIOC_INT_G_VBI_DATA",
 328         [_IOC_NR(VIDIOC_INT_G_CHIP_IDENT)]     = "VIDIOC_INT_G_CHIP_IDENT",
 329         [_IOC_NR(VIDIOC_INT_I2S_CLOCK_FREQ)]   = "VIDIOC_INT_I2S_CLOCK_FREQ",
 330         [_IOC_NR(VIDIOC_INT_S_STANDBY)]        = "VIDIOC_INT_S_STANDBY",
 331         [_IOC_NR(VIDIOC_INT_S_AUDIO_ROUTING)]  = "VIDIOC_INT_S_AUDIO_ROUTING",
 332         [_IOC_NR(VIDIOC_INT_G_AUDIO_ROUTING)]  = "VIDIOC_INT_G_AUDIO_ROUTING",
 333         [_IOC_NR(VIDIOC_INT_S_VIDEO_ROUTING)]  = "VIDIOC_INT_S_VIDEO_ROUTING",
 334         [_IOC_NR(VIDIOC_INT_G_VIDEO_ROUTING)]  = "VIDIOC_INT_G_VIDEO_ROUTING"
 335 };
 336 #define V4L2_INT_IOCTLS ARRAY_SIZE(v4l2_int_ioctls)
 337
 338 static void v4l_print_pix_fmt (char *s, struct v4l2_pix_format *fmt)
 339 {
 340         printk ("%s: width=%d, height=%d, format=%d, field=%s, "
 341                 "bytesperline=%d sizeimage=%d, colorspace=%d\n", s,
 342                 fmt->width,fmt->height,fmt->pixelformat,
 343                 prt_names(fmt->field,v4l2_field_names),
 344                 fmt->bytesperline,fmt->sizeimage,fmt->colorspace);
 345 };
 346
 347 /* Common ioctl debug function. This function can be used by
 348    external ioctl messages as well as internal V4L ioctl */
 349 void v4l_printk_ioctl(unsigned int cmd)
 350 {
 351         char *dir;
 352
 353         switch (_IOC_DIR(cmd)) {
 354         case _IOC_NONE:              dir = "--"; break;
 355         case _IOC_READ:              dir = "r-"; break;
 356         case _IOC_WRITE:             dir = "-w"; break;
 357         case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
 358         default:                     dir = "*ERR*"; break;
 359         }
 360         switch (_IOC_TYPE(cmd)) {
 361         case 'd':
 362                 printk("v4l2_int ioctl %s, dir=%s (0x%08x)\n",
 363                        (_IOC_NR(cmd) < V4L2_INT_IOCTLS) ?
 364                        v4l2_int_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
 365                 break;
 366 #ifdef HAVE_V4L1
 367         case 'v':
 368                 printk("v4l1 ioctl %s, dir=%s (0x%08x)\n",
 369                        (_IOC_NR(cmd) < V4L1_IOCTLS) ?
 370                        v4l1_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
 371                 break;
 372 #endif
 373         case 'V':
 374                 printk("v4l2 ioctl %s, dir=%s (0x%08x)\n",
 375                        (_IOC_NR(cmd) < V4L2_IOCTLS) ?
 376                        v4l2_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
 377                 break;
 378
 379         default:
 380                 printk("unknown ioctl '%c', dir=%s, #%d (0x%08x)\n",
 381                        _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd);
 382         }
 383 }
 384
 385 /* Common ioctl debug function. This function can be used by
 386    external ioctl messages as well as internal V4L ioctl and its
 387    arguments */
 388 void v4l_printk_ioctl_arg(char *s,unsigned int cmd, void *arg)
 389 {
 390         printk(s);
 391         printk(": ");
 392         v4l_printk_ioctl(cmd);
 393         switch (cmd) {
 394         case VIDIOC_INT_G_CHIP_IDENT:
 395         {
 396                 enum v4l2_chip_ident  *p=arg;
 397                 printk ("%s: chip ident=%d\n", s, *p);
 398                 break;
 399         }
 400         case VIDIOC_G_PRIORITY:
 401         case VIDIOC_S_PRIORITY:
 402         {
 403                 enum v4l2_priority *p=arg;
 404                 printk ("%s: priority=%d\n", s, *p);
 405                 break;
 406         }
 407         case VIDIOC_INT_S_TUNER_MODE:
 408         {
 409                 enum v4l2_tuner_type *p=arg;
 410                 printk ("%s: tuner type=%d\n", s, *p);
 411                 break;
 412         }
 413         case DECODER_SET_VBI_BYPASS:
 414         case DECODER_ENABLE_OUTPUT:
 415         case DECODER_GET_STATUS:
 416         case DECODER_SET_OUTPUT:
 417         case DECODER_SET_INPUT:
 418         case DECODER_SET_GPIO:
 419         case DECODER_SET_NORM:
 420         case VIDIOCCAPTURE:
 421         case VIDIOCSYNC:
 422         case VIDIOCSWRITEMODE:
 423         case TUNER_SET_TYPE_ADDR:
 424         case TUNER_SET_STANDBY:
 425         case TDA9887_SET_CONFIG:
 426         case VIDIOC_OVERLAY_OLD:
 427         case VIDIOC_STREAMOFF:
 428         case VIDIOC_G_OUTPUT:
 429         case VIDIOC_S_OUTPUT:
 430         case VIDIOC_STREAMON:
 431         case VIDIOC_G_INPUT:
 432         case VIDIOC_OVERLAY:
 433         case VIDIOC_S_INPUT:
 434         {
 435                 int *p=arg;
 436                 printk ("%s: value=%d\n", s, *p);
 437                 break;
 438         }
 439         case VIDIOC_G_AUDIO:
 440         case VIDIOC_S_AUDIO:
 441         case VIDIOC_ENUMAUDIO:
 442         case VIDIOC_G_AUDIO_OLD:
 443         {
 444                 struct v4l2_audio *p=arg;
 445
 446                 printk ("%s: index=%d, name=%s, capability=%d, mode=%d\n",
 447                         s,p->index, p->name,p->capability, p->mode);
 448                 break;
 449         }
 450         case VIDIOC_G_AUDOUT:
 451         case VIDIOC_S_AUDOUT:
 452         case VIDIOC_ENUMAUDOUT:
 453         case VIDIOC_G_AUDOUT_OLD:
 454         {
 455                 struct v4l2_audioout *p=arg;
 456                 printk ("%s: index=%d, name=%s, capability=%d, mode=%d\n", s,
 457                                 p->index, p->name, p->capability,p->mode);
 458                 break;
 459         }
 460         case VIDIOC_QBUF:
 461         case VIDIOC_DQBUF:
 462         case VIDIOC_QUERYBUF:
 463         {
 464                 struct v4l2_buffer *p=arg;
 465                 struct v4l2_timecode *tc=&p->timecode;
 466                 printk ("%s: %02ld:%02d:%02d.%08ld index=%d, type=%s, "
 467                         "bytesused=%d, flags=0x%08x, "
 468                         "field=%0d, sequence=%d, memory=%s, offset/userptr=0x%08lx\n",
 469                                 s,
 470                                 (p->timestamp.tv_sec/3600),
 471                                 (int)(p->timestamp.tv_sec/60)%60,
 472                                 (int)(p->timestamp.tv_sec%60),
 473                                 p->timestamp.tv_usec,
 474                                 p->index,
 475                                 prt_names(p->type,v4l2_type_names),
 476                                 p->bytesused,p->flags,
 477                                 p->field,p->sequence,
 478                                 prt_names(p->memory,v4l2_memory_names),
 479                                 p->m.userptr);
 480                 printk ("%s: timecode= %02d:%02d:%02d type=%d, "
 481                         "flags=0x%08x, frames=%d, userbits=0x%p\n",
 482                                 s,tc->hours,tc->minutes,tc->seconds,
 483                                 tc->type, tc->flags, tc->frames, tc->userbits);
 484                 break;
 485         }
 486         case VIDIOC_QUERYCAP:
 487         {
 488                 struct v4l2_capability *p=arg;
 489                 printk ("%s: driver=%s, card=%s, bus=%s, version=0x%08x, "
 490                         "capabilities=0x%08x\n", s,
 491                                 p->driver,p->card,p->bus_info,
 492                                 p->version,
 493                                 p->capabilities);
 494                 break;
 495         }
 496         case VIDIOC_G_CTRL:
 497         case VIDIOC_S_CTRL:
 498         case VIDIOC_S_CTRL_OLD:
 499         {
 500                 struct v4l2_control *p=arg;
 501                 printk ("%s: id=%d, value=%d\n", s, p->id, p->value);
 502                 break;
 503         }
 504         case VIDIOC_G_CROP:
 505         case VIDIOC_S_CROP:
 506         {
 507                 struct v4l2_crop *p=arg;
 508                 /*FIXME: Should also show rect structs */
 509                 printk ("%s: type=%d\n", s, p->type);
 510                 break;
 511         }
 512         case VIDIOC_CROPCAP:
 513         case VIDIOC_CROPCAP_OLD:
 514         {
 515                 struct v4l2_cropcap *p=arg;
 516                 /*FIXME: Should also show rect structs */
 517                 printk ("%s: type=%d\n", s, p->type);
 518                 break;
 519         }
 520         case VIDIOC_INT_DECODE_VBI_LINE:
 521         {
 522                 struct v4l2_decode_vbi_line *p=arg;
 523                 printk ("%s: is_second_field=%d, ptr=0x%08lx, line=%d, "
 524                         "type=%d\n", s,
 525                                 p->is_second_field,(unsigned long)p->p,p->line,p->type);
 526                 break;
 527         }
 528         case VIDIOC_ENUM_FMT:
 529         {
 530                 struct v4l2_fmtdesc *p=arg;
 531                 printk ("%s: index=%d, type=%d, flags=%d, description=%s,"
 532                         " pixelformat=%d\n", s,
 533                                 p->index, p->type, p->flags,p->description,
 534                                 p->pixelformat);
 535
 536                 break;
 537         }
 538         case VIDIOC_G_FMT:
 539         case VIDIOC_S_FMT:
 540         case VIDIOC_TRY_FMT:
 541         {
 542                 struct v4l2_format *p=arg;
 543                 printk ("%s: type=%s\n", s,
 544                                 prt_names(p->type,v4l2_type_names));
 545                 switch (p->type) {
 546                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 547                         v4l_print_pix_fmt (s, &p->fmt.pix);
 548                         break;
 549                 default:
 550                         break;
 551                 }
 552         }
 553         case VIDIOC_G_FBUF:
 554         case VIDIOC_S_FBUF:
 555         {
 556                 struct v4l2_framebuffer *p=arg;
 557                 printk ("%s: capability=%d, flags=%d, base=0x%08lx\n", s,
 558                                 p->capability,p->flags, (unsigned long)p->base);
 559                 v4l_print_pix_fmt (s, &p->fmt);
 560                 break;
 561         }
 562         case VIDIOC_G_FREQUENCY:
 563         case VIDIOC_S_FREQUENCY:
 564         {
 565                 struct v4l2_frequency *p=arg;
 566                 printk ("%s: tuner=%d, type=%d, frequency=%d\n", s,
 567                                 p->tuner,p->type,p->frequency);
 568                 break;
 569         }
 570         case VIDIOC_ENUMINPUT:
 571         {
 572                 struct v4l2_input *p=arg;
 573                 printk ("%s: index=%d, name=%s, type=%d, audioset=%d, "
 574                         "tuner=%d, std=%Ld, status=%d\n", s,
 575                                 p->index,p->name,p->type,p->audioset,
 576                                 p->tuner,
 577                                 (unsigned long long)p->std,
 578                                 p->status);
 579                 break;
 580         }
 581         case VIDIOC_G_JPEGCOMP:
 582         case VIDIOC_S_JPEGCOMP:
 583         {
 584                 struct v4l2_jpegcompression *p=arg;
 585                 printk ("%s: quality=%d, APPn=%d, APP_len=%d, COM_len=%d,"
 586                         " jpeg_markers=%d\n", s,
 587                                 p->quality,p->APPn,p->APP_len,
 588                                 p->COM_len,p->jpeg_markers);
 589                 break;
 590         }
 591         case VIDIOC_G_MODULATOR:
 592         case VIDIOC_S_MODULATOR:
 593         {
 594                 struct v4l2_modulator *p=arg;
 595                 printk ("%s: index=%d, name=%s, capability=%d, rangelow=%d,"
 596                         " rangehigh=%d, txsubchans=%d\n", s,
 597                                 p->index, p->name,p->capability,p->rangelow,
 598                                 p->rangehigh,p->txsubchans);
 599                 break;
 600         }
 601         case VIDIOC_G_MPEGCOMP:
 602         case VIDIOC_S_MPEGCOMP:
 603         {
 604                 struct v4l2_mpeg_compression *p=arg;
 605                 /*FIXME: Several fields not shown */
 606                 printk ("%s: ts_pid_pmt=%d, ts_pid_audio=%d, ts_pid_video=%d, "
 607                         "ts_pid_pcr=%d, ps_size=%d, au_sample_rate=%d, "
 608                         "au_pesid=%c, vi_frame_rate=%d, vi_frames_per_gop=%d, "
 609                         "vi_bframes_count=%d, vi_pesid=%c\n", s,
 610                                 p->ts_pid_pmt,p->ts_pid_audio, p->ts_pid_video,
 611                                 p->ts_pid_pcr, p->ps_size, p->au_sample_rate,
 612                                 p->au_pesid, p->vi_frame_rate,
 613                                 p->vi_frames_per_gop, p->vi_bframes_count,
 614                                 p->vi_pesid);
 615                 break;
 616         }
 617         case VIDIOC_ENUMOUTPUT:
 618         {
 619                 struct v4l2_output *p=arg;
 620                 printk ("%s: index=%d, name=%s,type=%d, audioset=%d, "
 621                         "modulator=%d, std=%Ld\n",
 622                                 s,p->index,p->name,p->type,p->audioset,
 623                                 p->modulator,
 624                                 (unsigned long long)p->std);
 625                 break;
 626         }
 627         case VIDIOC_QUERYCTRL:
 628         {
 629                 struct v4l2_queryctrl *p=arg;
 630                 printk ("%s: id=%d, type=%d, name=%s, min/max=%d/%d,"
 631                         " step=%d, default=%d, flags=0x%08x\n", s,
 632                                 p->id,p->type,p->name,p->minimum,p->maximum,
 633                                 p->step,p->default_value,p->flags);
 634                 break;
 635         }
 636         case VIDIOC_QUERYMENU:
 637         {
 638                 struct v4l2_querymenu *p=arg;
 639                 printk ("%s: id=%d, index=%d, name=%s\n", s,
 640                                 p->id,p->index,p->name);
 641                 break;
 642         }
 643         case VIDIOC_INT_G_REGISTER:
 644         case VIDIOC_INT_S_REGISTER:
 645         {
 646                 struct v4l2_register *p=arg;
 647                 printk ("%s: i2c_id=%d, reg=%lu, val=%d\n", s,
 648                                 p->i2c_id,p->reg,p->val);
 649
 650                 break;
 651         }
 652         case VIDIOC_REQBUFS:
 653         {
 654                 struct v4l2_requestbuffers *p=arg;
 655                 printk ("%s: count=%d, type=%s, memory=%s\n", s,
 656                                 p->count,
 657                                 prt_names(p->type,v4l2_type_names),
 658                                 prt_names(p->memory,v4l2_memory_names));
 659                 break;
 660         }
 661         case VIDIOC_INT_S_AUDIO_ROUTING:
 662         case VIDIOC_INT_S_VIDEO_ROUTING:
 663         case VIDIOC_INT_G_AUDIO_ROUTING:
 664         case VIDIOC_INT_G_VIDEO_ROUTING:
 665         {
 666                 struct v4l2_routing  *p=arg;
 667                 printk ("%s: input=0x%x, output=0x%x\n", s, p->input, p->output);
 668                 break;
 669         }
 670         case VIDIOC_G_SLICED_VBI_CAP:
 671         {
 672                 struct v4l2_sliced_vbi_cap *p=arg;
 673                 printk ("%s: service_set=%d\n", s,
 674                                 p->service_set);
 675                 break;
 676         }
 677         case VIDIOC_INT_S_VBI_DATA:
 678         case VIDIOC_INT_G_VBI_DATA:
 679         {
 680                 struct v4l2_sliced_vbi_data  *p=arg;
 681                 printk ("%s: id=%d, field=%d, line=%d\n", s,
 682                                 p->id, p->field, p->line);
 683                 break;
 684         }
 685         case VIDIOC_ENUMSTD:
 686         {
 687                 struct v4l2_standard *p=arg;
 688                 printk ("%s: index=%d, id=%Ld, name=%s, fps=%d/%d, "
 689                         "framelines=%d\n", s, p->index,
 690                                 (unsigned long long)p->id, p->name,
 691                                 p->frameperiod.numerator,
 692                                 p->frameperiod.denominator,
 693                                 p->framelines);
 694
 695                 break;
 696         }
 697         case VIDIOC_G_PARM:
 698         case VIDIOC_S_PARM:
 699         case VIDIOC_S_PARM_OLD:
 700         {
 701                 struct v4l2_streamparm *p=arg;
 702                 printk ("%s: type=%d\n", s, p->type);
 703
 704                 break;
 705         }
 706         case VIDIOC_G_TUNER:
 707         case VIDIOC_S_TUNER:
 708         {
 709                 struct v4l2_tuner *p=arg;
 710                 printk ("%s: index=%d, name=%s, type=%d, capability=%d, "
 711                         "rangelow=%d, rangehigh=%d, signal=%d, afc=%d, "
 712                         "rxsubchans=%d, audmode=%d\n", s,
 713                                 p->index, p->name, p->type,
 714                                 p->capability, p->rangelow,p->rangehigh,
 715                                 p->rxsubchans, p->audmode, p->signal,
 716                                 p->afc);
 717                 break;
 718         }
 719         case VIDIOCGVBIFMT:
 720         case VIDIOCSVBIFMT:
 721         {
 722                 struct vbi_format *p=arg;
 723                 printk ("%s: sampling_rate=%d, samples_per_line=%d, "
 724                         "sample_format=%d, start=%d/%d, count=%d/%d, flags=%d\n", s,
 725                                 p->sampling_rate,p->samples_per_line,
 726                                 p->sample_format,p->start[0],p->start[1],
 727                                 p->count[0],p->count[1],p->flags);
 728                 break;
 729         }
 730         case VIDIOCGAUDIO:
 731         case VIDIOCSAUDIO:
 732         {
 733                 struct video_audio *p=arg;
 734                 printk ("%s: audio=%d, volume=%d, bass=%d, treble=%d, "
 735                         "flags=%d, name=%s, mode=%d, balance=%d, step=%d\n",
 736                                 s,p->audio,p->volume,p->bass, p->treble,
 737                                 p->flags,p->name,p->mode,p->balance,p->step);
 738                 break;
 739         }
 740         case VIDIOCGFBUF:
 741         case VIDIOCSFBUF:
 742         {
 743                 struct video_buffer *p=arg;
 744                 printk ("%s: base=%08lx, height=%d, width=%d, depth=%d, "
 745                         "bytesperline=%d\n", s,
 746                                 (unsigned long) p->base, p->height, p->width,
 747                                 p->depth,p->bytesperline);
 748                 break;
 749         }
 750         case VIDIOCGCAP:
 751         {
 752                 struct video_capability *p=arg;
 753                 printk ("%s: name=%s, type=%d, channels=%d, audios=%d, "
 754                         "maxwidth=%d, maxheight=%d, minwidth=%d, minheight=%d\n",
 755                                 s,p->name,p->type,p->channels,p->audios,
 756                                 p->maxwidth,p->maxheight,p->minwidth,
 757                                 p->minheight);
 758
 759                 break;
 760         }
 761         case VIDIOCGCAPTURE:
 762         case VIDIOCSCAPTURE:
 763         {
 764                 struct video_capture *p=arg;
 765                 printk ("%s: x=%d, y=%d, width=%d, height=%d, decimation=%d,"
 766                         " flags=%d\n", s,
 767                                 p->x, p->y,p->width, p->height,
 768                                 p->decimation,p->flags);
 769                 break;
 770         }
 771         case VIDIOCGCHAN:
 772         case VIDIOCSCHAN:
 773         {
 774                 struct video_channel *p=arg;
 775                 printk ("%s: channel=%d, name=%s, tuners=%d, flags=%d, "
 776                         "type=%d, norm=%d\n", s,
 777                                 p->channel,p->name,p->tuners,
 778                                 p->flags,p->type,p->norm);
 779
 780                 break;
 781         }
 782         case VIDIOCSMICROCODE:
 783         {
 784                 struct video_code *p=arg;
 785                 printk ("%s: loadwhat=%s, datasize=%d\n", s,
 786                                 p->loadwhat,p->datasize);
 787                 break;
 788         }
 789         case DECODER_GET_CAPABILITIES:
 790         {
 791                 struct video_decoder_capability *p=arg;
 792                 printk ("%s: flags=%d, inputs=%d, outputs=%d\n", s,
 793                                 p->flags,p->inputs,p->outputs);
 794                 break;
 795         }
 796         case DECODER_INIT:
 797         {
 798                 struct video_decoder_init *p=arg;
 799                 printk ("%s: len=%c\n", s, p->len);
 800                 break;
 801         }
 802         case VIDIOCGPLAYINFO:
 803         {
 804                 struct video_info *p=arg;
 805                 printk ("%s: frame_count=%d, h_size=%d, v_size=%d, "
 806                         "smpte_timecode=%d, picture_type=%d, "
 807                         "temporal_reference=%d, user_data=%s\n", s,
 808                                 p->frame_count, p->h_size,
 809                                 p->v_size, p->smpte_timecode,
 810                                 p->picture_type, p->temporal_reference,
 811                                 p->user_data);
 812                 break;
 813         }
 814         case VIDIOCKEY:
 815         {
 816                 struct video_key *p=arg;
 817                 printk ("%s: key=%s, flags=%d\n", s,
 818                                 p->key, p->flags);
 819                 break;
 820         }
 821         case VIDIOCGMBUF:
 822         {
 823                 struct video_mbuf *p=arg;
 824                 printk ("%s: size=%d, frames=%d, offsets=0x%08lx\n", s,
 825                                 p->size,
 826                                 p->frames,
 827                                 (unsigned long)p->offsets);
 828                 break;
 829         }
 830         case VIDIOCMCAPTURE:
 831         {
 832                 struct video_mmap *p=arg;
 833                 printk ("%s: frame=%d, height=%d, width=%d, format=%d\n", s,
 834                                 p->frame,
 835                                 p->height, p->width,
 836                                 p->format);
 837                 break;
 838         }
 839         case VIDIOCGPICT:
 840         case VIDIOCSPICT:
 841         case DECODER_SET_PICTURE:
 842         {
 843                 struct video_picture *p=arg;
 844
 845                 printk ("%s: brightness=%d, hue=%d, colour=%d, contrast=%d,"
 846                         " whiteness=%d, depth=%d, palette=%d\n", s,
 847                                 p->brightness, p->hue, p->colour,
 848                                 p->contrast, p->whiteness, p->depth,
 849                                 p->palette);
 850                 break;
 851         }
 852         case VIDIOCSPLAYMODE:
 853         {
 854                 struct video_play_mode *p=arg;
 855                 printk ("%s: mode=%d, p1=%d, p2=%d\n", s,
 856                                 p->mode,p->p1,p->p2);
 857                 break;
 858         }
 859         case VIDIOCGTUNER:
 860         case VIDIOCSTUNER:
 861         {
 862                 struct video_tuner *p=arg;
 863                 printk ("%s: tuner=%d, name=%s, rangelow=%ld, rangehigh=%ld, "
 864                         "flags=%d, mode=%d, signal=%d\n", s,
 865                                 p->tuner, p->name,p->rangelow, p->rangehigh,
 866                                 p->flags,p->mode, p->signal);
 867                 break;
 868         }
 869         case VIDIOCGUNIT:
 870         {
 871                 struct video_unit *p=arg;
 872                 printk ("%s: video=%d, vbi=%d, radio=%d, audio=%d, "
 873                         "teletext=%d\n", s,
 874                                 p->video,p->vbi,p->radio,p->audio,p->teletext);
 875                 break;
 876         }
 877         case VIDIOCGWIN:
 878         case VIDIOCSWIN:
 879         {
 880                 struct video_window *p=arg;
 881                 printk ("%s: x=%d, y=%d, width=%d, height=%d, chromakey=%d,"
 882                         " flags=%d, clipcount=%d\n", s,
 883                                 p->x, p->y,p->width, p->height,
 884                                 p->chromakey,p->flags,
 885                                 p->clipcount);
 886                 break;
 887         }
 888         case VIDIOC_INT_AUDIO_CLOCK_FREQ:
 889         case VIDIOC_INT_I2S_CLOCK_FREQ:
 890         case VIDIOC_INT_S_STANDBY:
 891         {
 892                 u32 *p=arg;
 893
 894                 printk ("%s: value=%d\n", s, *p);
 895                 break;
 896         }
 897         case VIDIOCGFREQ:
 898         case VIDIOCSFREQ:
 899         {
 900                 unsigned long *p=arg;
 901                 printk ("%s: value=%lu\n", s, *p);
 902                 break;
 903         }
 904         case VIDIOC_G_STD:
 905         case VIDIOC_S_STD:
 906         case VIDIOC_QUERYSTD:
 907         {
 908                 v4l2_std_id *p=arg;
 909
 910                 printk ("%s: value=%Lu\n", s, (unsigned long long)*p);
 911                 break;
 912         }
 913         }
 914 }
 915
 916 /* ----------------------------------------------------------------- */
 917
 918 EXPORT_SYMBOL(v4l2_video_std_construct);
 919
 920 EXPORT_SYMBOL(v4l2_prio_init);
 921 EXPORT_SYMBOL(v4l2_prio_change);
 922 EXPORT_SYMBOL(v4l2_prio_open);
 923 EXPORT_SYMBOL(v4l2_prio_close);
 924 EXPORT_SYMBOL(v4l2_prio_max);
 925 EXPORT_SYMBOL(v4l2_prio_check);
 926
 927 EXPORT_SYMBOL(v4l2_field_names);
 928 EXPORT_SYMBOL(v4l2_type_names);
 929 EXPORT_SYMBOL(v4l_printk_ioctl);
 930 EXPORT_SYMBOL(v4l_printk_ioctl_arg);
 931
 932 /*
 933  * Local variables:
 934  * c-basic-offset: 8
 935  * End:
 936  */