fedora core 6 1.2949 + vserver 2.2.0
[linux-2.6.git] / drivers / media / video / v4l2-common.c
index cd2c447..b87d571 100644 (file)
@@ -44,7 +44,6 @@
  * Added Gerd Knorrs v4l1 enhancements (Justin Schoeman)
  */
 
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
@@ -59,6 +58,7 @@
 #include <asm/io.h>
 #include <asm/div64.h>
 #include <linux/video_decoder.h>
+#define __OLD_VIDIOC_ /* To allow fixing old calls*/
 #include <media/v4l2-common.h>
 
 #ifdef CONFIG_KMOD
@@ -87,6 +87,85 @@ MODULE_LICENSE("GPL");
  */
 
 
+char *v4l2_norm_to_name(v4l2_std_id id)
+{
+       char *name;
+       u32 myid = id;
+
+       /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle
+          64 bit comparations. So, on that architecture, with some gcc variants,
+          compilation fails. Currently, the max value is 30bit wide.
+        */
+       BUG_ON(myid != id);
+
+       switch (myid) {
+       case V4L2_STD_PAL:
+               name="PAL";             break;
+       case V4L2_STD_PAL_BG:
+               name="PAL-BG";          break;
+       case V4L2_STD_PAL_DK:
+               name="PAL-DK";          break;
+       case V4L2_STD_PAL_B:
+               name="PAL-B";           break;
+       case V4L2_STD_PAL_B1:
+               name="PAL-B1";          break;
+       case V4L2_STD_PAL_G:
+               name="PAL-G";           break;
+       case V4L2_STD_PAL_H:
+               name="PAL-H";           break;
+       case V4L2_STD_PAL_I:
+               name="PAL-I";           break;
+       case V4L2_STD_PAL_D:
+               name="PAL-D";           break;
+       case V4L2_STD_PAL_D1:
+               name="PAL-D1";          break;
+       case V4L2_STD_PAL_K:
+               name="PAL-K";           break;
+       case V4L2_STD_PAL_M:
+               name="PAL-M";           break;
+       case V4L2_STD_PAL_N:
+               name="PAL-N";           break;
+       case V4L2_STD_PAL_Nc:
+               name="PAL-Nc";          break;
+       case V4L2_STD_PAL_60:
+               name="PAL-60";          break;
+       case V4L2_STD_NTSC:
+               name="NTSC";            break;
+       case V4L2_STD_NTSC_M:
+               name="NTSC-M";          break;
+       case V4L2_STD_NTSC_M_JP:
+               name="NTSC-M-JP";       break;
+       case V4L2_STD_NTSC_443:
+               name="NTSC-443";        break;
+       case V4L2_STD_NTSC_M_KR:
+               name="NTSC-M-KR";       break;
+       case V4L2_STD_SECAM:
+               name="SECAM";           break;
+       case V4L2_STD_SECAM_DK:
+               name="SECAM-DK";        break;
+       case V4L2_STD_SECAM_B:
+               name="SECAM-B";         break;
+       case V4L2_STD_SECAM_D:
+               name="SECAM-D";         break;
+       case V4L2_STD_SECAM_G:
+               name="SECAM-G";         break;
+       case V4L2_STD_SECAM_H:
+               name="SECAM-H";         break;
+       case V4L2_STD_SECAM_K:
+               name="SECAM-K";         break;
+       case V4L2_STD_SECAM_K1:
+               name="SECAM-K1";        break;
+       case V4L2_STD_SECAM_L:
+               name="SECAM-L";         break;
+       case V4L2_STD_SECAM_LC:
+               name="SECAM-LC";        break;
+       default:
+               name="Unknown";         break;
+       }
+
+       return name;
+}
+
 /* Fill in the fields of a v4l2_standard structure according to the
    'id' and 'transmission' parameters.  Returns negative on error.  */
 int v4l2_video_std_construct(struct v4l2_standard *vs,
@@ -97,7 +176,7 @@ int v4l2_video_std_construct(struct v4l2_standard *vs,
        memset(vs, 0, sizeof(struct v4l2_standard));
        vs->index = index;
        vs->id    = id;
-       if (id & (V4L2_STD_NTSC | V4L2_STD_PAL_M)) {
+       if (id & V4L2_STD_525_60) {
                vs->frameperiod.numerator = 1001;
                vs->frameperiod.denominator = 30000;
                vs->framelines = 525;
@@ -110,7 +189,6 @@ int v4l2_video_std_construct(struct v4l2_standard *vs,
        return 0;
 }
 
-
 /* ----------------------------------------------------------------- */
 /* priority handling                                                 */
 
@@ -171,7 +249,7 @@ int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority *local)
 
 
 /* ----------------------------------------------------------------- */
-/* some arrays for pretty-printing debug messages                    */
+/* some arrays for pretty-printing debug messages of enum types      */
 
 char *v4l2_field_names[] = {
        [V4L2_FIELD_ANY]        = "any",
@@ -185,17 +263,27 @@ char *v4l2_field_names[] = {
 };
 
 char *v4l2_type_names[] = {
-       [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "video-cap",
-       [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "video-over",
-       [V4L2_BUF_TYPE_VIDEO_OUTPUT]  = "video-out",
-       [V4L2_BUF_TYPE_VBI_CAPTURE]   = "vbi-cap",
-       [V4L2_BUF_TYPE_VBI_OUTPUT]    = "vbi-out",
+       [V4L2_BUF_TYPE_VIDEO_CAPTURE]      = "video-cap",
+       [V4L2_BUF_TYPE_VIDEO_OVERLAY]      = "video-over",
+       [V4L2_BUF_TYPE_VIDEO_OUTPUT]       = "video-out",
+       [V4L2_BUF_TYPE_VBI_CAPTURE]        = "vbi-cap",
+       [V4L2_BUF_TYPE_VBI_OUTPUT]         = "vbi-out",
+       [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap",
+       [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT]  = "slicec-vbi-out",
+};
+
+static char *v4l2_memory_names[] = {
+       [V4L2_MEMORY_MMAP]    = "mmap",
+       [V4L2_MEMORY_USERPTR] = "userptr",
+       [V4L2_MEMORY_OVERLAY] = "overlay",
 };
 
+#define prt_names(a,arr) (((a)>=0)&&((a)<ARRAY_SIZE(arr)))?arr[a]:"unknown"
+
 /* ------------------------------------------------------------------ */
 /* debug help functions                                               */
 
-#ifdef HAVE_V4L1
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
 static const char *v4l1_ioctls[] = {
        [_IOC_NR(VIDIOCGCAP)]       = "VIDIOCGCAP",
        [_IOC_NR(VIDIOCGCHAN)]      = "VIDIOCGCHAN",
@@ -286,12 +374,15 @@ static const char *v4l2_ioctls[] = {
 #if 1
        [_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP",
 #endif
-       [_IOC_NR(VIDIOC_LOG_STATUS)]       = "VIDIOC_LOG_STATUS"
+       [_IOC_NR(VIDIOC_LOG_STATUS)]       = "VIDIOC_LOG_STATUS",
+       [_IOC_NR(VIDIOC_G_EXT_CTRLS)]      = "VIDIOC_G_EXT_CTRLS",
+       [_IOC_NR(VIDIOC_S_EXT_CTRLS)]      = "VIDIOC_S_EXT_CTRLS",
+       [_IOC_NR(VIDIOC_TRY_EXT_CTRLS)]    = "VIDIOC_TRY_EXT_CTRLS"
 };
 #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
 
 static const char *v4l2_int_ioctls[] = {
-#ifdef HAVE_VIDEO_DECODER
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
        [_IOC_NR(DECODER_GET_CAPABILITIES)]    = "DECODER_GET_CAPABILITIES",
        [_IOC_NR(DECODER_GET_STATUS)]          = "DECODER_GET_STATUS",
        [_IOC_NR(DECODER_SET_NORM)]            = "DECODER_SET_NORM",
@@ -305,13 +396,12 @@ static const char *v4l2_int_ioctls[] = {
        [_IOC_NR(DECODER_DUMP)]                = "DECODER_DUMP",
 #endif
        [_IOC_NR(AUDC_SET_RADIO)]              = "AUDC_SET_RADIO",
-       [_IOC_NR(AUDC_SET_INPUT)]              = "AUDC_SET_INPUT",
-       [_IOC_NR(MSP_SET_MATRIX)]              = "MSP_SET_MATRIX",
 
        [_IOC_NR(TUNER_SET_TYPE_ADDR)]         = "TUNER_SET_TYPE_ADDR",
        [_IOC_NR(TUNER_SET_STANDBY)]           = "TUNER_SET_STANDBY",
        [_IOC_NR(TDA9887_SET_CONFIG)]          = "TDA9887_SET_CONFIG",
 
+       [_IOC_NR(VIDIOC_INT_S_TUNER_MODE)]     = "VIDIOC_INT_S_TUNER_MODE",
        [_IOC_NR(VIDIOC_INT_S_REGISTER)]       = "VIDIOC_INT_S_REGISTER",
        [_IOC_NR(VIDIOC_INT_G_REGISTER)]       = "VIDIOC_INT_G_REGISTER",
        [_IOC_NR(VIDIOC_INT_RESET)]            = "VIDIOC_INT_RESET",
@@ -320,10 +410,25 @@ static const char *v4l2_int_ioctls[] = {
        [_IOC_NR(VIDIOC_INT_S_VBI_DATA)]       = "VIDIOC_INT_S_VBI_DATA",
        [_IOC_NR(VIDIOC_INT_G_VBI_DATA)]       = "VIDIOC_INT_G_VBI_DATA",
        [_IOC_NR(VIDIOC_INT_G_CHIP_IDENT)]     = "VIDIOC_INT_G_CHIP_IDENT",
-       [_IOC_NR(VIDIOC_INT_I2S_CLOCK_FREQ)]   = "VIDIOC_INT_I2S_CLOCK_FREQ"
+       [_IOC_NR(VIDIOC_INT_I2S_CLOCK_FREQ)]   = "VIDIOC_INT_I2S_CLOCK_FREQ",
+       [_IOC_NR(VIDIOC_INT_S_STANDBY)]        = "VIDIOC_INT_S_STANDBY",
+       [_IOC_NR(VIDIOC_INT_S_AUDIO_ROUTING)]  = "VIDIOC_INT_S_AUDIO_ROUTING",
+       [_IOC_NR(VIDIOC_INT_G_AUDIO_ROUTING)]  = "VIDIOC_INT_G_AUDIO_ROUTING",
+       [_IOC_NR(VIDIOC_INT_S_VIDEO_ROUTING)]  = "VIDIOC_INT_S_VIDEO_ROUTING",
+       [_IOC_NR(VIDIOC_INT_G_VIDEO_ROUTING)]  = "VIDIOC_INT_G_VIDEO_ROUTING",
+       [_IOC_NR(VIDIOC_INT_S_CRYSTAL_FREQ)]   = "VIDIOC_INT_S_CRYSTAL_FREQ"
 };
 #define V4L2_INT_IOCTLS ARRAY_SIZE(v4l2_int_ioctls)
 
+static void v4l_print_pix_fmt (char *s, struct v4l2_pix_format *fmt)
+{
+       printk ("%s: width=%d, height=%d, format=%d, field=%s, "
+               "bytesperline=%d sizeimage=%d, colorspace=%d\n", s,
+               fmt->width,fmt->height,fmt->pixelformat,
+               prt_names(fmt->field,v4l2_field_names),
+               fmt->bytesperline,fmt->sizeimage,fmt->colorspace);
+};
+
 /* Common ioctl debug function. This function can be used by
    external ioctl messages as well as internal V4L ioctl */
 void v4l_printk_ioctl(unsigned int cmd)
@@ -343,7 +448,7 @@ void v4l_printk_ioctl(unsigned int cmd)
                       (_IOC_NR(cmd) < V4L2_INT_IOCTLS) ?
                       v4l2_int_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
                break;
-#ifdef HAVE_V4L1
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
        case 'v':
                printk("v4l1 ioctl %s, dir=%s (0x%08x)\n",
                       (_IOC_NR(cmd) < V4L1_IOCTLS) ?
@@ -362,8 +467,1072 @@ void v4l_printk_ioctl(unsigned int cmd)
        }
 }
 
+/* Common ioctl debug function. This function can be used by
+   external ioctl messages as well as internal V4L ioctl and its
+   arguments */
+void v4l_printk_ioctl_arg(char *s,unsigned int cmd, void *arg)
+{
+       printk(s);
+       printk(": ");
+       v4l_printk_ioctl(cmd);
+       switch (cmd) {
+       case VIDIOC_INT_G_CHIP_IDENT:
+       {
+               enum v4l2_chip_ident  *p=arg;
+               printk ("%s: chip ident=%d\n", s, *p);
+               break;
+       }
+       case VIDIOC_G_PRIORITY:
+       case VIDIOC_S_PRIORITY:
+       {
+               enum v4l2_priority *p=arg;
+               printk ("%s: priority=%d\n", s, *p);
+               break;
+       }
+       case VIDIOC_INT_S_TUNER_MODE:
+       {
+               enum v4l2_tuner_type *p=arg;
+               printk ("%s: tuner type=%d\n", s, *p);
+               break;
+       }
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
+       case DECODER_SET_VBI_BYPASS:
+       case DECODER_ENABLE_OUTPUT:
+       case DECODER_GET_STATUS:
+       case DECODER_SET_OUTPUT:
+       case DECODER_SET_INPUT:
+       case DECODER_SET_GPIO:
+       case DECODER_SET_NORM:
+       case VIDIOCCAPTURE:
+       case VIDIOCSYNC:
+       case VIDIOCSWRITEMODE:
+#endif
+       case TUNER_SET_TYPE_ADDR:
+       case TUNER_SET_STANDBY:
+       case TDA9887_SET_CONFIG:
+#ifdef __OLD_VIDIOC_
+       case VIDIOC_OVERLAY_OLD:
+#endif
+       case VIDIOC_STREAMOFF:
+       case VIDIOC_G_OUTPUT:
+       case VIDIOC_S_OUTPUT:
+       case VIDIOC_STREAMON:
+       case VIDIOC_G_INPUT:
+       case VIDIOC_OVERLAY:
+       case VIDIOC_S_INPUT:
+       {
+               int *p=arg;
+               printk ("%s: value=%d\n", s, *p);
+               break;
+       }
+       case VIDIOC_G_AUDIO:
+       case VIDIOC_S_AUDIO:
+       case VIDIOC_ENUMAUDIO:
+#ifdef __OLD_VIDIOC_
+       case VIDIOC_G_AUDIO_OLD:
+#endif
+       {
+               struct v4l2_audio *p=arg;
+
+               printk ("%s: index=%d, name=%s, capability=%d, mode=%d\n",
+                       s,p->index, p->name,p->capability, p->mode);
+               break;
+       }
+       case VIDIOC_G_AUDOUT:
+       case VIDIOC_S_AUDOUT:
+       case VIDIOC_ENUMAUDOUT:
+#ifdef __OLD_VIDIOC_
+       case VIDIOC_G_AUDOUT_OLD:
+#endif
+       {
+               struct v4l2_audioout *p=arg;
+               printk ("%s: index=%d, name=%s, capability=%d, mode=%d\n", s,
+                               p->index, p->name, p->capability,p->mode);
+               break;
+       }
+       case VIDIOC_QBUF:
+       case VIDIOC_DQBUF:
+       case VIDIOC_QUERYBUF:
+       {
+               struct v4l2_buffer *p=arg;
+               struct v4l2_timecode *tc=&p->timecode;
+               printk ("%s: %02ld:%02d:%02d.%08ld index=%d, type=%s, "
+                       "bytesused=%d, flags=0x%08x, "
+                       "field=%0d, sequence=%d, memory=%s, offset/userptr=0x%08lx\n",
+                               s,
+                               (p->timestamp.tv_sec/3600),
+                               (int)(p->timestamp.tv_sec/60)%60,
+                               (int)(p->timestamp.tv_sec%60),
+                               p->timestamp.tv_usec,
+                               p->index,
+                               prt_names(p->type,v4l2_type_names),
+                               p->bytesused,p->flags,
+                               p->field,p->sequence,
+                               prt_names(p->memory,v4l2_memory_names),
+                               p->m.userptr);
+               printk ("%s: timecode= %02d:%02d:%02d type=%d, "
+                       "flags=0x%08x, frames=%d, userbits=0x%08x\n",
+                               s,tc->hours,tc->minutes,tc->seconds,
+                               tc->type, tc->flags, tc->frames, *(__u32 *) tc->userbits);
+               break;
+       }
+       case VIDIOC_QUERYCAP:
+       {
+               struct v4l2_capability *p=arg;
+               printk ("%s: driver=%s, card=%s, bus=%s, version=0x%08x, "
+                       "capabilities=0x%08x\n", s,
+                               p->driver,p->card,p->bus_info,
+                               p->version,
+                               p->capabilities);
+               break;
+       }
+       case VIDIOC_G_CTRL:
+       case VIDIOC_S_CTRL:
+#ifdef __OLD_VIDIOC_
+       case VIDIOC_S_CTRL_OLD:
+#endif
+       {
+               struct v4l2_control *p=arg;
+               printk ("%s: id=%d, value=%d\n", s, p->id, p->value);
+               break;
+       }
+       case VIDIOC_G_EXT_CTRLS:
+       case VIDIOC_S_EXT_CTRLS:
+       case VIDIOC_TRY_EXT_CTRLS:
+       {
+               struct v4l2_ext_controls *p = arg;
+               int i;
+
+               printk("%s: ctrl_class=%d, count=%d\n", s, p->ctrl_class, p->count);
+               for (i = 0; i < p->count; i++) {
+                       struct v4l2_ext_control *c = &p->controls[i];
+                       if (cmd == VIDIOC_G_EXT_CTRLS)
+                               printk("%s: id=%d\n", s, c->id);
+                       else
+                               printk("%s: id=%d, value=%d\n", s, c->id, c->value);
+               }
+               break;
+       }
+       case VIDIOC_G_CROP:
+       case VIDIOC_S_CROP:
+       {
+               struct v4l2_crop *p=arg;
+               /*FIXME: Should also show rect structs */
+               printk ("%s: type=%d\n", s, p->type);
+               break;
+       }
+       case VIDIOC_CROPCAP:
+#ifdef __OLD_VIDIOC_
+       case VIDIOC_CROPCAP_OLD:
+#endif
+       {
+               struct v4l2_cropcap *p=arg;
+               /*FIXME: Should also show rect structs */
+               printk ("%s: type=%d\n", s, p->type);
+               break;
+       }
+       case VIDIOC_INT_DECODE_VBI_LINE:
+       {
+               struct v4l2_decode_vbi_line *p=arg;
+               printk ("%s: is_second_field=%d, ptr=0x%08lx, line=%d, "
+                       "type=%d\n", s,
+                               p->is_second_field,(unsigned long)p->p,p->line,p->type);
+               break;
+       }
+       case VIDIOC_ENUM_FMT:
+       {
+               struct v4l2_fmtdesc *p=arg;
+               printk ("%s: index=%d, type=%d, flags=%d, description=%s,"
+                       " pixelformat=%d\n", s,
+                               p->index, p->type, p->flags,p->description,
+                               p->pixelformat);
+
+               break;
+       }
+       case VIDIOC_G_FMT:
+       case VIDIOC_S_FMT:
+       case VIDIOC_TRY_FMT:
+       {
+               struct v4l2_format *p=arg;
+               printk ("%s: type=%s\n", s,
+                               prt_names(p->type,v4l2_type_names));
+               switch (p->type) {
+               case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+                       v4l_print_pix_fmt (s, &p->fmt.pix);
+                       break;
+               default:
+                       break;
+               }
+       }
+       case VIDIOC_G_FBUF:
+       case VIDIOC_S_FBUF:
+       {
+               struct v4l2_framebuffer *p=arg;
+               printk ("%s: capability=%d, flags=%d, base=0x%08lx\n", s,
+                               p->capability,p->flags, (unsigned long)p->base);
+               v4l_print_pix_fmt (s, &p->fmt);
+               break;
+       }
+       case VIDIOC_G_FREQUENCY:
+       case VIDIOC_S_FREQUENCY:
+       {
+               struct v4l2_frequency *p=arg;
+               printk ("%s: tuner=%d, type=%d, frequency=%d\n", s,
+                               p->tuner,p->type,p->frequency);
+               break;
+       }
+       case VIDIOC_ENUMINPUT:
+       {
+               struct v4l2_input *p=arg;
+               printk ("%s: index=%d, name=%s, type=%d, audioset=%d, "
+                       "tuner=%d, std=%Ld, status=%d\n", s,
+                               p->index,p->name,p->type,p->audioset,
+                               p->tuner,
+                               (unsigned long long)p->std,
+                               p->status);
+               break;
+       }
+       case VIDIOC_G_JPEGCOMP:
+       case VIDIOC_S_JPEGCOMP:
+       {
+               struct v4l2_jpegcompression *p=arg;
+               printk ("%s: quality=%d, APPn=%d, APP_len=%d, COM_len=%d,"
+                       " jpeg_markers=%d\n", s,
+                               p->quality,p->APPn,p->APP_len,
+                               p->COM_len,p->jpeg_markers);
+               break;
+       }
+       case VIDIOC_G_MODULATOR:
+       case VIDIOC_S_MODULATOR:
+       {
+               struct v4l2_modulator *p=arg;
+               printk ("%s: index=%d, name=%s, capability=%d, rangelow=%d,"
+                       " rangehigh=%d, txsubchans=%d\n", s,
+                               p->index, p->name,p->capability,p->rangelow,
+                               p->rangehigh,p->txsubchans);
+               break;
+       }
+       case VIDIOC_G_MPEGCOMP:
+       case VIDIOC_S_MPEGCOMP:
+       {
+               struct v4l2_mpeg_compression *p=arg;
+               /*FIXME: Several fields not shown */
+               printk ("%s: ts_pid_pmt=%d, ts_pid_audio=%d, ts_pid_video=%d, "
+                       "ts_pid_pcr=%d, ps_size=%d, au_sample_rate=%d, "
+                       "au_pesid=%c, vi_frame_rate=%d, vi_frames_per_gop=%d, "
+                       "vi_bframes_count=%d, vi_pesid=%c\n", s,
+                               p->ts_pid_pmt,p->ts_pid_audio, p->ts_pid_video,
+                               p->ts_pid_pcr, p->ps_size, p->au_sample_rate,
+                               p->au_pesid, p->vi_frame_rate,
+                               p->vi_frames_per_gop, p->vi_bframes_count,
+                               p->vi_pesid);
+               break;
+       }
+       case VIDIOC_ENUMOUTPUT:
+       {
+               struct v4l2_output *p=arg;
+               printk ("%s: index=%d, name=%s,type=%d, audioset=%d, "
+                       "modulator=%d, std=%Ld\n",
+                               s,p->index,p->name,p->type,p->audioset,
+                               p->modulator,
+                               (unsigned long long)p->std);
+               break;
+       }
+       case VIDIOC_QUERYCTRL:
+       {
+               struct v4l2_queryctrl *p=arg;
+               printk ("%s: id=%d, type=%d, name=%s, min/max=%d/%d,"
+                       " step=%d, default=%d, flags=0x%08x\n", s,
+                               p->id,p->type,p->name,p->minimum,p->maximum,
+                               p->step,p->default_value,p->flags);
+               break;
+       }
+       case VIDIOC_QUERYMENU:
+       {
+               struct v4l2_querymenu *p=arg;
+               printk ("%s: id=%d, index=%d, name=%s\n", s,
+                               p->id,p->index,p->name);
+               break;
+       }
+       case VIDIOC_INT_G_REGISTER:
+       case VIDIOC_INT_S_REGISTER:
+       {
+               struct v4l2_register *p=arg;
+               printk ("%s: i2c_id=%d, reg=%lu, val=%d\n", s,
+                               p->i2c_id,p->reg,p->val);
+
+               break;
+       }
+       case VIDIOC_REQBUFS:
+       {
+               struct v4l2_requestbuffers *p=arg;
+               printk ("%s: count=%d, type=%s, memory=%s\n", s,
+                               p->count,
+                               prt_names(p->type,v4l2_type_names),
+                               prt_names(p->memory,v4l2_memory_names));
+               break;
+       }
+       case VIDIOC_INT_S_AUDIO_ROUTING:
+       case VIDIOC_INT_S_VIDEO_ROUTING:
+       case VIDIOC_INT_G_AUDIO_ROUTING:
+       case VIDIOC_INT_G_VIDEO_ROUTING:
+       {
+               struct v4l2_routing  *p=arg;
+               printk ("%s: input=0x%x, output=0x%x\n", s, p->input, p->output);
+               break;
+       }
+       case VIDIOC_INT_S_CRYSTAL_FREQ:
+       {
+               struct v4l2_crystal_freq *p=arg;
+               printk ("%s: freq=%u, flags=0x%x\n", s, p->freq, p->flags);
+               break;
+       }
+       case VIDIOC_G_SLICED_VBI_CAP:
+       {
+               struct v4l2_sliced_vbi_cap *p=arg;
+               printk ("%s: service_set=%d\n", s,
+                               p->service_set);
+               break;
+       }
+       case VIDIOC_INT_S_VBI_DATA:
+       case VIDIOC_INT_G_VBI_DATA:
+       {
+               struct v4l2_sliced_vbi_data  *p=arg;
+               printk ("%s: id=%d, field=%d, line=%d\n", s,
+                               p->id, p->field, p->line);
+               break;
+       }
+       case VIDIOC_ENUMSTD:
+       {
+               struct v4l2_standard *p=arg;
+               printk ("%s: index=%d, id=%Ld, name=%s, fps=%d/%d, "
+                       "framelines=%d\n", s, p->index,
+                               (unsigned long long)p->id, p->name,
+                               p->frameperiod.numerator,
+                               p->frameperiod.denominator,
+                               p->framelines);
+
+               break;
+       }
+       case VIDIOC_G_PARM:
+       case VIDIOC_S_PARM:
+#ifdef __OLD_VIDIOC_
+       case VIDIOC_S_PARM_OLD:
+#endif
+       {
+               struct v4l2_streamparm *p=arg;
+               printk ("%s: type=%d\n", s, p->type);
+
+               break;
+       }
+       case VIDIOC_G_TUNER:
+       case VIDIOC_S_TUNER:
+       {
+               struct v4l2_tuner *p=arg;
+               printk ("%s: index=%d, name=%s, type=%d, capability=%d, "
+                       "rangelow=%d, rangehigh=%d, signal=%d, afc=%d, "
+                       "rxsubchans=%d, audmode=%d\n", s,
+                               p->index, p->name, p->type,
+                               p->capability, p->rangelow,p->rangehigh,
+                               p->rxsubchans, p->audmode, p->signal,
+                               p->afc);
+               break;
+       }
+#ifdef CONFIG_VIDEO_V4L1_COMPAT
+       case VIDIOCGVBIFMT:
+       case VIDIOCSVBIFMT:
+       {
+               struct vbi_format *p=arg;
+               printk ("%s: sampling_rate=%d, samples_per_line=%d, "
+                       "sample_format=%d, start=%d/%d, count=%d/%d, flags=%d\n", s,
+                               p->sampling_rate,p->samples_per_line,
+                               p->sample_format,p->start[0],p->start[1],
+                               p->count[0],p->count[1],p->flags);
+               break;
+       }
+       case VIDIOCGAUDIO:
+       case VIDIOCSAUDIO:
+       {
+               struct video_audio *p=arg;
+               printk ("%s: audio=%d, volume=%d, bass=%d, treble=%d, "
+                       "flags=%d, name=%s, mode=%d, balance=%d, step=%d\n",
+                               s,p->audio,p->volume,p->bass, p->treble,
+                               p->flags,p->name,p->mode,p->balance,p->step);
+               break;
+       }
+       case VIDIOCGFBUF:
+       case VIDIOCSFBUF:
+       {
+               struct video_buffer *p=arg;
+               printk ("%s: base=%08lx, height=%d, width=%d, depth=%d, "
+                       "bytesperline=%d\n", s,
+                               (unsigned long) p->base, p->height, p->width,
+                               p->depth,p->bytesperline);
+               break;
+       }
+       case VIDIOCGCAP:
+       {
+               struct video_capability *p=arg;
+               printk ("%s: name=%s, type=%d, channels=%d, audios=%d, "
+                       "maxwidth=%d, maxheight=%d, minwidth=%d, minheight=%d\n",
+                               s,p->name,p->type,p->channels,p->audios,
+                               p->maxwidth,p->maxheight,p->minwidth,
+                               p->minheight);
+
+               break;
+       }
+       case VIDIOCGCAPTURE:
+       case VIDIOCSCAPTURE:
+       {
+               struct video_capture *p=arg;
+               printk ("%s: x=%d, y=%d, width=%d, height=%d, decimation=%d,"
+                       " flags=%d\n", s,
+                               p->x, p->y,p->width, p->height,
+                               p->decimation,p->flags);
+               break;
+       }
+       case VIDIOCGCHAN:
+       case VIDIOCSCHAN:
+       {
+               struct video_channel *p=arg;
+               printk ("%s: channel=%d, name=%s, tuners=%d, flags=%d, "
+                       "type=%d, norm=%d\n", s,
+                               p->channel,p->name,p->tuners,
+                               p->flags,p->type,p->norm);
+
+               break;
+       }
+       case VIDIOCSMICROCODE:
+       {
+               struct video_code *p=arg;
+               printk ("%s: loadwhat=%s, datasize=%d\n", s,
+                               p->loadwhat,p->datasize);
+               break;
+       }
+       case DECODER_GET_CAPABILITIES:
+       {
+               struct video_decoder_capability *p=arg;
+               printk ("%s: flags=%d, inputs=%d, outputs=%d\n", s,
+                               p->flags,p->inputs,p->outputs);
+               break;
+       }
+       case DECODER_INIT:
+       {
+               struct video_decoder_init *p=arg;
+               printk ("%s: len=%c\n", s, p->len);
+               break;
+       }
+       case VIDIOCGPLAYINFO:
+       {
+               struct video_info *p=arg;
+               printk ("%s: frame_count=%d, h_size=%d, v_size=%d, "
+                       "smpte_timecode=%d, picture_type=%d, "
+                       "temporal_reference=%d, user_data=%s\n", s,
+                               p->frame_count, p->h_size,
+                               p->v_size, p->smpte_timecode,
+                               p->picture_type, p->temporal_reference,
+                               p->user_data);
+               break;
+       }
+       case VIDIOCKEY:
+       {
+               struct video_key *p=arg;
+               printk ("%s: key=%s, flags=%d\n", s,
+                               p->key, p->flags);
+               break;
+       }
+       case VIDIOCGMBUF:
+       {
+               struct video_mbuf *p=arg;
+               printk ("%s: size=%d, frames=%d, offsets=0x%08lx\n", s,
+                               p->size,
+                               p->frames,
+                               (unsigned long)p->offsets);
+               break;
+       }
+       case VIDIOCMCAPTURE:
+       {
+               struct video_mmap *p=arg;
+               printk ("%s: frame=%d, height=%d, width=%d, format=%d\n", s,
+                               p->frame,
+                               p->height, p->width,
+                               p->format);
+               break;
+       }
+       case VIDIOCGPICT:
+       case VIDIOCSPICT:
+       case DECODER_SET_PICTURE:
+       {
+               struct video_picture *p=arg;
+
+               printk ("%s: brightness=%d, hue=%d, colour=%d, contrast=%d,"
+                       " whiteness=%d, depth=%d, palette=%d\n", s,
+                               p->brightness, p->hue, p->colour,
+                               p->contrast, p->whiteness, p->depth,
+                               p->palette);
+               break;
+       }
+       case VIDIOCSPLAYMODE:
+       {
+               struct video_play_mode *p=arg;
+               printk ("%s: mode=%d, p1=%d, p2=%d\n", s,
+                               p->mode,p->p1,p->p2);
+               break;
+       }
+       case VIDIOCGTUNER:
+       case VIDIOCSTUNER:
+       {
+               struct video_tuner *p=arg;
+               printk ("%s: tuner=%d, name=%s, rangelow=%ld, rangehigh=%ld, "
+                       "flags=%d, mode=%d, signal=%d\n", s,
+                               p->tuner, p->name,p->rangelow, p->rangehigh,
+                               p->flags,p->mode, p->signal);
+               break;
+       }
+       case VIDIOCGUNIT:
+       {
+               struct video_unit *p=arg;
+               printk ("%s: video=%d, vbi=%d, radio=%d, audio=%d, "
+                       "teletext=%d\n", s,
+                               p->video,p->vbi,p->radio,p->audio,p->teletext);
+               break;
+       }
+       case VIDIOCGWIN:
+       case VIDIOCSWIN:
+       {
+               struct video_window *p=arg;
+               printk ("%s: x=%d, y=%d, width=%d, height=%d, chromakey=%d,"
+                       " flags=%d, clipcount=%d\n", s,
+                               p->x, p->y,p->width, p->height,
+                               p->chromakey,p->flags,
+                               p->clipcount);
+               break;
+       }
+       case VIDIOCGFREQ:
+       case VIDIOCSFREQ:
+       {
+               unsigned long *p=arg;
+               printk ("%s: value=%lu\n", s, *p);
+               break;
+       }
+#endif
+       case VIDIOC_INT_AUDIO_CLOCK_FREQ:
+       case VIDIOC_INT_I2S_CLOCK_FREQ:
+       case VIDIOC_INT_S_STANDBY:
+       case VIDIOC_INT_RESET:
+       {
+               u32 *p=arg;
+
+               printk ("%s: value=%d\n", s, *p);
+               break;
+       }
+       case VIDIOC_G_STD:
+       case VIDIOC_S_STD:
+       case VIDIOC_QUERYSTD:
+       {
+               v4l2_std_id *p=arg;
+
+               printk ("%s: value=%Lu\n", s, (unsigned long long)*p);
+               break;
+       }
+       }
+}
+
+/* ----------------------------------------------------------------- */
+
+/* Helper functions for control handling                            */
+
+/* Check for correctness of the ctrl's value based on the data from
+   struct v4l2_queryctrl and the available menu items. Note that
+   menu_items may be NULL, in that case it is ignored. */
+int v4l2_ctrl_check(struct v4l2_ext_control *ctrl, struct v4l2_queryctrl *qctrl,
+               const char **menu_items)
+{
+       if (qctrl->flags & V4L2_CTRL_FLAG_DISABLED)
+               return -EINVAL;
+       if (qctrl->flags & V4L2_CTRL_FLAG_GRABBED)
+               return -EBUSY;
+       if (qctrl->type == V4L2_CTRL_TYPE_BUTTON ||
+           qctrl->type == V4L2_CTRL_TYPE_INTEGER64 ||
+           qctrl->type == V4L2_CTRL_TYPE_CTRL_CLASS)
+               return 0;
+       if (ctrl->value < qctrl->minimum || ctrl->value > qctrl->maximum)
+               return -ERANGE;
+       if (qctrl->type == V4L2_CTRL_TYPE_MENU && menu_items != NULL) {
+               if (menu_items[ctrl->value] == NULL ||
+                   menu_items[ctrl->value][0] == '\0')
+                       return -EINVAL;
+       }
+       return 0;
+}
+
+/* Returns NULL or a character pointer array containing the menu for
+   the given control ID. The pointer array ends with a NULL pointer.
+   An empty string signifies a menu entry that is invalid. This allows
+   drivers to disable certain options if it is not supported. */
+const char **v4l2_ctrl_get_menu(u32 id)
+{
+       static const char *mpeg_audio_sampling_freq[] = {
+               "44.1 kHz",
+               "48 kHz",
+               "32 kHz",
+               NULL
+       };
+       static const char *mpeg_audio_encoding[] = {
+               "Layer I",
+               "Layer II",
+               "Layer III",
+               NULL
+       };
+       static const char *mpeg_audio_l1_bitrate[] = {
+               "32 kbps",
+               "64 kbps",
+               "96 kbps",
+               "128 kbps",
+               "160 kbps",
+               "192 kbps",
+               "224 kbps",
+               "256 kbps",
+               "288 kbps",
+               "320 kbps",
+               "352 kbps",
+               "384 kbps",
+               "416 kbps",
+               "448 kbps",
+               NULL
+       };
+       static const char *mpeg_audio_l2_bitrate[] = {
+               "32 kbps",
+               "48 kbps",
+               "56 kbps",
+               "64 kbps",
+               "80 kbps",
+               "96 kbps",
+               "112 kbps",
+               "128 kbps",
+               "160 kbps",
+               "192 kbps",
+               "224 kbps",
+               "256 kbps",
+               "320 kbps",
+               "384 kbps",
+               NULL
+       };
+       static const char *mpeg_audio_l3_bitrate[] = {
+               "32 kbps",
+               "40 kbps",
+               "48 kbps",
+               "56 kbps",
+               "64 kbps",
+               "80 kbps",
+               "96 kbps",
+               "112 kbps",
+               "128 kbps",
+               "160 kbps",
+               "192 kbps",
+               "224 kbps",
+               "256 kbps",
+               "320 kbps",
+               NULL
+       };
+       static const char *mpeg_audio_mode[] = {
+               "Stereo",
+               "Joint Stereo",
+               "Dual",
+               "Mono",
+               NULL
+       };
+       static const char *mpeg_audio_mode_extension[] = {
+               "Bound 4",
+               "Bound 8",
+               "Bound 12",
+               "Bound 16",
+               NULL
+       };
+       static const char *mpeg_audio_emphasis[] = {
+               "No Emphasis",
+               "50/15 us",
+               "CCITT J17",
+               NULL
+       };
+       static const char *mpeg_audio_crc[] = {
+               "No CRC",
+               "16-bit CRC",
+               NULL
+       };
+       static const char *mpeg_video_encoding[] = {
+               "MPEG-1",
+               "MPEG-2",
+               NULL
+       };
+       static const char *mpeg_video_aspect[] = {
+               "1x1",
+               "4x3",
+               "16x9",
+               "2.21x1",
+               NULL
+       };
+       static const char *mpeg_video_bitrate_mode[] = {
+               "Variable Bitrate",
+               "Constant Bitrate",
+               NULL
+       };
+       static const char *mpeg_stream_type[] = {
+               "MPEG-2 Program Stream",
+               "MPEG-2 Transport Stream",
+               "MPEG-1 System Stream",
+               "MPEG-2 DVD-compatible Stream",
+               "MPEG-1 VCD-compatible Stream",
+               "MPEG-2 SVCD-compatible Stream",
+               NULL
+       };
+       static const char *mpeg_stream_vbi_fmt[] = {
+               "No VBI",
+               "Private packet, IVTV format",
+               NULL
+       };
+
+       switch (id) {
+               case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
+                       return mpeg_audio_sampling_freq;
+               case V4L2_CID_MPEG_AUDIO_ENCODING:
+                       return mpeg_audio_encoding;
+               case V4L2_CID_MPEG_AUDIO_L1_BITRATE:
+                       return mpeg_audio_l1_bitrate;
+               case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
+                       return mpeg_audio_l2_bitrate;
+               case V4L2_CID_MPEG_AUDIO_L3_BITRATE:
+                       return mpeg_audio_l3_bitrate;
+               case V4L2_CID_MPEG_AUDIO_MODE:
+                       return mpeg_audio_mode;
+               case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION:
+                       return mpeg_audio_mode_extension;
+               case V4L2_CID_MPEG_AUDIO_EMPHASIS:
+                       return mpeg_audio_emphasis;
+               case V4L2_CID_MPEG_AUDIO_CRC:
+                       return mpeg_audio_crc;
+               case V4L2_CID_MPEG_VIDEO_ENCODING:
+                       return mpeg_video_encoding;
+               case V4L2_CID_MPEG_VIDEO_ASPECT:
+                       return mpeg_video_aspect;
+               case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
+                       return mpeg_video_bitrate_mode;
+               case V4L2_CID_MPEG_STREAM_TYPE:
+                       return mpeg_stream_type;
+               case V4L2_CID_MPEG_STREAM_VBI_FMT:
+                       return mpeg_stream_vbi_fmt;
+               default:
+                       return NULL;
+       }
+}
+
+/* Fill in a struct v4l2_queryctrl */
+int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def)
+{
+       const char *name;
+
+       qctrl->flags = 0;
+       switch (qctrl->id) {
+       /* USER controls */
+       case V4L2_CID_USER_CLASS:       name = "User Controls"; break;
+       case V4L2_CID_AUDIO_VOLUME:     name = "Volume"; break;
+       case V4L2_CID_AUDIO_MUTE:       name = "Mute"; break;
+       case V4L2_CID_AUDIO_BALANCE:    name = "Balance"; break;
+       case V4L2_CID_AUDIO_BASS:       name = "Bass"; break;
+       case V4L2_CID_AUDIO_TREBLE:     name = "Treble"; break;
+       case V4L2_CID_AUDIO_LOUDNESS:   name = "Loudness"; break;
+       case V4L2_CID_BRIGHTNESS:       name = "Brightness"; break;
+       case V4L2_CID_CONTRAST:         name = "Contrast"; break;
+       case V4L2_CID_SATURATION:       name = "Saturation"; break;
+       case V4L2_CID_HUE:              name = "Hue"; break;
+
+       /* MPEG controls */
+       case V4L2_CID_MPEG_CLASS:               name = "MPEG Encoder Controls"; break;
+       case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: name = "Audio Sampling Frequency"; break;
+       case V4L2_CID_MPEG_AUDIO_ENCODING:      name = "Audio Encoding Layer"; break;
+       case V4L2_CID_MPEG_AUDIO_L1_BITRATE:    name = "Audio Layer I Bitrate"; break;
+       case V4L2_CID_MPEG_AUDIO_L2_BITRATE:    name = "Audio Layer II Bitrate"; break;
+       case V4L2_CID_MPEG_AUDIO_L3_BITRATE:    name = "Audio Layer III Bitrate"; break;
+       case V4L2_CID_MPEG_AUDIO_MODE:          name = "Audio Stereo Mode"; break;
+       case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: name = "Audio Stereo Mode Extension"; break;
+       case V4L2_CID_MPEG_AUDIO_EMPHASIS:      name = "Audio Emphasis"; break;
+       case V4L2_CID_MPEG_AUDIO_CRC:           name = "Audio CRC"; break;
+       case V4L2_CID_MPEG_VIDEO_ENCODING:      name = "Video Encoding"; break;
+       case V4L2_CID_MPEG_VIDEO_ASPECT:        name = "Video Aspect"; break;
+       case V4L2_CID_MPEG_VIDEO_B_FRAMES:      name = "Video B Frames"; break;
+       case V4L2_CID_MPEG_VIDEO_GOP_SIZE:      name = "Video GOP Size"; break;
+       case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:   name = "Video GOP Closure"; break;
+       case V4L2_CID_MPEG_VIDEO_PULLDOWN:      name = "Video Pulldown"; break;
+       case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:  name = "Video Bitrate Mode"; break;
+       case V4L2_CID_MPEG_VIDEO_BITRATE:       name = "Video Bitrate"; break;
+       case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:  name = "Video Peak Bitrate"; break;
+       case V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION: name = "Video Temporal Decimation"; break;
+       case V4L2_CID_MPEG_STREAM_TYPE:         name = "Stream Type"; break;
+       case V4L2_CID_MPEG_STREAM_PID_PMT:      name = "Stream PMT Program ID"; break;
+       case V4L2_CID_MPEG_STREAM_PID_AUDIO:    name = "Stream Audio Program ID"; break;
+       case V4L2_CID_MPEG_STREAM_PID_VIDEO:    name = "Stream Video Program ID"; break;
+       case V4L2_CID_MPEG_STREAM_PID_PCR:      name = "Stream PCR Program ID"; break;
+       case V4L2_CID_MPEG_STREAM_PES_ID_AUDIO: name = "Stream PES Audio ID"; break;
+       case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO: name = "Stream PES Video ID"; break;
+       case V4L2_CID_MPEG_STREAM_VBI_FMT:      name = "Stream VBI Format"; break;
+
+       default:
+               return -EINVAL;
+       }
+       switch (qctrl->id) {
+       case V4L2_CID_AUDIO_MUTE:
+       case V4L2_CID_AUDIO_LOUDNESS:
+       case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:
+       case V4L2_CID_MPEG_VIDEO_PULLDOWN:
+               qctrl->type = V4L2_CTRL_TYPE_BOOLEAN;
+               min = 0;
+               max = step = 1;
+               break;
+       case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
+       case V4L2_CID_MPEG_AUDIO_ENCODING:
+       case V4L2_CID_MPEG_AUDIO_L1_BITRATE:
+       case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
+       case V4L2_CID_MPEG_AUDIO_L3_BITRATE:
+       case V4L2_CID_MPEG_AUDIO_MODE:
+       case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION:
+       case V4L2_CID_MPEG_AUDIO_EMPHASIS:
+       case V4L2_CID_MPEG_AUDIO_CRC:
+       case V4L2_CID_MPEG_VIDEO_ENCODING:
+       case V4L2_CID_MPEG_VIDEO_ASPECT:
+       case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
+       case V4L2_CID_MPEG_STREAM_TYPE:
+       case V4L2_CID_MPEG_STREAM_VBI_FMT:
+               qctrl->type = V4L2_CTRL_TYPE_MENU;
+               step = 1;
+               break;
+       case V4L2_CID_USER_CLASS:
+       case V4L2_CID_MPEG_CLASS:
+               qctrl->type = V4L2_CTRL_TYPE_CTRL_CLASS;
+               qctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+               min = max = step = def = 0;
+               break;
+       default:
+               qctrl->type = V4L2_CTRL_TYPE_INTEGER;
+               break;
+       }
+       switch (qctrl->id) {
+       case V4L2_CID_MPEG_AUDIO_ENCODING:
+       case V4L2_CID_MPEG_AUDIO_MODE:
+       case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
+       case V4L2_CID_MPEG_VIDEO_B_FRAMES:
+       case V4L2_CID_MPEG_STREAM_TYPE:
+               qctrl->flags |= V4L2_CTRL_FLAG_UPDATE;
+               break;
+       case V4L2_CID_AUDIO_VOLUME:
+       case V4L2_CID_AUDIO_BALANCE:
+       case V4L2_CID_AUDIO_BASS:
+       case V4L2_CID_AUDIO_TREBLE:
+       case V4L2_CID_BRIGHTNESS:
+       case V4L2_CID_CONTRAST:
+       case V4L2_CID_SATURATION:
+       case V4L2_CID_HUE:
+               qctrl->flags |= V4L2_CTRL_FLAG_SLIDER;
+               break;
+       }
+       qctrl->minimum = min;
+       qctrl->maximum = max;
+       qctrl->step = step;
+       qctrl->default_value = def;
+       qctrl->reserved[0] = qctrl->reserved[1] = 0;
+       snprintf(qctrl->name, sizeof(qctrl->name), name);
+       return 0;
+}
+
+/* Fill in a struct v4l2_queryctrl with standard values based on
+   the control ID. */
+int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl)
+{
+       switch (qctrl->id) {
+       /* USER controls */
+       case V4L2_CID_USER_CLASS:
+       case V4L2_CID_MPEG_CLASS:
+               return v4l2_ctrl_query_fill(qctrl, 0, 0, 0, 0);
+       case V4L2_CID_AUDIO_VOLUME:
+               return v4l2_ctrl_query_fill(qctrl, 0, 65535, 65535 / 100, 58880);
+       case V4L2_CID_AUDIO_MUTE:
+       case V4L2_CID_AUDIO_LOUDNESS:
+               return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0);
+       case V4L2_CID_AUDIO_BALANCE:
+       case V4L2_CID_AUDIO_BASS:
+       case V4L2_CID_AUDIO_TREBLE:
+               return v4l2_ctrl_query_fill(qctrl, 0, 65535, 65535 / 100, 32768);
+       case V4L2_CID_BRIGHTNESS:
+               return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 128);
+       case V4L2_CID_CONTRAST:
+       case V4L2_CID_SATURATION:
+               return v4l2_ctrl_query_fill(qctrl, 0, 127, 1, 64);
+       case V4L2_CID_HUE:
+               return v4l2_ctrl_query_fill(qctrl, -128, 127, 1, 0);
+
+       /* MPEG controls */
+       case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
+               return v4l2_ctrl_query_fill(qctrl,
+                               V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100,
+                               V4L2_MPEG_AUDIO_SAMPLING_FREQ_32000, 1,
+                               V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000);
+       case V4L2_CID_MPEG_AUDIO_ENCODING:
+               return v4l2_ctrl_query_fill(qctrl,
+                               V4L2_MPEG_AUDIO_ENCODING_LAYER_1,
+                               V4L2_MPEG_AUDIO_ENCODING_LAYER_3, 1,
+                               V4L2_MPEG_AUDIO_ENCODING_LAYER_2);
+       case V4L2_CID_MPEG_AUDIO_L1_BITRATE:
+               return v4l2_ctrl_query_fill(qctrl,
+                               V4L2_MPEG_AUDIO_L1_BITRATE_32K,
+                               V4L2_MPEG_AUDIO_L1_BITRATE_448K, 1,
+                               V4L2_MPEG_AUDIO_L1_BITRATE_256K);
+       case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
+               return v4l2_ctrl_query_fill(qctrl,
+                               V4L2_MPEG_AUDIO_L2_BITRATE_32K,
+                               V4L2_MPEG_AUDIO_L2_BITRATE_384K, 1,
+                               V4L2_MPEG_AUDIO_L2_BITRATE_224K);
+       case V4L2_CID_MPEG_AUDIO_L3_BITRATE:
+               return v4l2_ctrl_query_fill(qctrl,
+                               V4L2_MPEG_AUDIO_L3_BITRATE_32K,
+                               V4L2_MPEG_AUDIO_L3_BITRATE_320K, 1,
+                               V4L2_MPEG_AUDIO_L3_BITRATE_192K);
+       case V4L2_CID_MPEG_AUDIO_MODE:
+               return v4l2_ctrl_query_fill(qctrl,
+                               V4L2_MPEG_AUDIO_MODE_STEREO,
+                               V4L2_MPEG_AUDIO_MODE_MONO, 1,
+                               V4L2_MPEG_AUDIO_MODE_STEREO);
+       case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION:
+               return v4l2_ctrl_query_fill(qctrl,
+                               V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4,
+                               V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_16, 1,
+                               V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4);
+       case V4L2_CID_MPEG_AUDIO_EMPHASIS:
+               return v4l2_ctrl_query_fill(qctrl,
+                               V4L2_MPEG_AUDIO_EMPHASIS_NONE,
+                               V4L2_MPEG_AUDIO_EMPHASIS_CCITT_J17, 1,
+                               V4L2_MPEG_AUDIO_EMPHASIS_NONE);
+       case V4L2_CID_MPEG_AUDIO_CRC:
+               return v4l2_ctrl_query_fill(qctrl,
+                               V4L2_MPEG_AUDIO_CRC_NONE,
+                               V4L2_MPEG_AUDIO_CRC_CRC16, 1,
+                               V4L2_MPEG_AUDIO_CRC_NONE);
+       case V4L2_CID_MPEG_VIDEO_ENCODING:
+               return v4l2_ctrl_query_fill(qctrl,
+                               V4L2_MPEG_VIDEO_ENCODING_MPEG_1,
+                               V4L2_MPEG_VIDEO_ENCODING_MPEG_2, 1,
+                               V4L2_MPEG_VIDEO_ENCODING_MPEG_2);
+       case V4L2_CID_MPEG_VIDEO_ASPECT:
+               return v4l2_ctrl_query_fill(qctrl,
+                               V4L2_MPEG_VIDEO_ASPECT_1x1,
+                               V4L2_MPEG_VIDEO_ASPECT_221x100, 1,
+                               V4L2_MPEG_VIDEO_ASPECT_4x3);
+       case V4L2_CID_MPEG_VIDEO_B_FRAMES:
+               return v4l2_ctrl_query_fill(qctrl, 0, 33, 1, 2);
+       case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
+               return v4l2_ctrl_query_fill(qctrl, 1, 34, 1, 12);
+       case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:
+               return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 1);
+       case V4L2_CID_MPEG_VIDEO_PULLDOWN:
+               return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0);
+       case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
+               return v4l2_ctrl_query_fill(qctrl,
+                               V4L2_MPEG_VIDEO_BITRATE_MODE_VBR,
+                               V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 1,
+                               V4L2_MPEG_VIDEO_BITRATE_MODE_VBR);
+       case V4L2_CID_MPEG_VIDEO_BITRATE:
+               return v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 6000000);
+       case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
+               return v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 8000000);
+       case V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION:
+               return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0);
+       case V4L2_CID_MPEG_STREAM_TYPE:
+               return v4l2_ctrl_query_fill(qctrl,
+                               V4L2_MPEG_STREAM_TYPE_MPEG2_PS,
+                               V4L2_MPEG_STREAM_TYPE_MPEG2_SVCD, 1,
+                               V4L2_MPEG_STREAM_TYPE_MPEG2_PS);
+       case V4L2_CID_MPEG_STREAM_PID_PMT:
+               return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 16);
+       case V4L2_CID_MPEG_STREAM_PID_AUDIO:
+               return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 260);
+       case V4L2_CID_MPEG_STREAM_PID_VIDEO:
+               return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 256);
+       case V4L2_CID_MPEG_STREAM_PID_PCR:
+               return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 259);
+       case V4L2_CID_MPEG_STREAM_PES_ID_AUDIO:
+               return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0);
+       case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO:
+               return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0);
+       case V4L2_CID_MPEG_STREAM_VBI_FMT:
+               return v4l2_ctrl_query_fill(qctrl,
+                               V4L2_MPEG_STREAM_VBI_FMT_NONE,
+                               V4L2_MPEG_STREAM_VBI_FMT_IVTV, 1,
+                               V4L2_MPEG_STREAM_VBI_FMT_NONE);
+       default:
+               return -EINVAL;
+       }
+}
+
+/* Fill in a struct v4l2_querymenu based on the struct v4l2_queryctrl and
+   the menu. The qctrl pointer may be NULL, in which case it is ignored. */
+int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu, struct v4l2_queryctrl *qctrl,
+              const char **menu_items)
+{
+       int i;
+
+       if (menu_items == NULL ||
+           (qctrl && (qmenu->index < qctrl->minimum || qmenu->index > qctrl->maximum)))
+               return -EINVAL;
+       for (i = 0; i < qmenu->index && menu_items[i]; i++) ;
+       if (menu_items[i] == NULL || menu_items[i][0] == '\0')
+               return -EINVAL;
+       snprintf(qmenu->name, sizeof(qmenu->name), menu_items[qmenu->index]);
+       qmenu->reserved = 0;
+       return 0;
+}
+
+/* ctrl_classes points to an array of u32 pointers, the last element is
+   a NULL pointer. Each u32 array is a 0-terminated array of control IDs.
+   Each array must be sorted low to high and belong to the same control
+   class. The array of u32 pointer must also be sorted, from low class IDs
+   to high class IDs.
+
+   This function returns the first ID that follows after the given ID.
+   When no more controls are available 0 is returned. */
+u32 v4l2_ctrl_next(const u32 * const * ctrl_classes, u32 id)
+{
+       u32 ctrl_class;
+       const u32 *pctrl;
+
+       /* if no query is desired, then just return the control ID */
+       if ((id & V4L2_CTRL_FLAG_NEXT_CTRL) == 0)
+               return id;
+       if (ctrl_classes == NULL)
+               return 0;
+       id &= V4L2_CTRL_ID_MASK;
+       ctrl_class = V4L2_CTRL_ID2CLASS(id);
+       id++;   /* select next control */
+       /* find first class that matches (or is greater than) the class of
+          the ID */
+       while (*ctrl_classes && V4L2_CTRL_ID2CLASS(**ctrl_classes) < ctrl_class)
+               ctrl_classes++;
+       /* no more classes */
+       if (*ctrl_classes == NULL)
+               return 0;
+       pctrl = *ctrl_classes;
+       /* find first ctrl within the class that is >= ID */
+       while (*pctrl && *pctrl < id) pctrl++;
+       if (*pctrl)
+               return *pctrl;
+       /* we are at the end of the controls of the current class. */
+       /* continue with next class if available */
+       ctrl_classes++;
+       if (*ctrl_classes == NULL)
+               return 0;
+       return **ctrl_classes;
+}
+
 /* ----------------------------------------------------------------- */
 
+EXPORT_SYMBOL(v4l2_norm_to_name);
 EXPORT_SYMBOL(v4l2_video_std_construct);
 
 EXPORT_SYMBOL(v4l2_prio_init);
@@ -376,6 +1545,14 @@ EXPORT_SYMBOL(v4l2_prio_check);
 EXPORT_SYMBOL(v4l2_field_names);
 EXPORT_SYMBOL(v4l2_type_names);
 EXPORT_SYMBOL(v4l_printk_ioctl);
+EXPORT_SYMBOL(v4l_printk_ioctl_arg);
+
+EXPORT_SYMBOL(v4l2_ctrl_next);
+EXPORT_SYMBOL(v4l2_ctrl_check);
+EXPORT_SYMBOL(v4l2_ctrl_get_menu);
+EXPORT_SYMBOL(v4l2_ctrl_query_menu);
+EXPORT_SYMBOL(v4l2_ctrl_query_fill);
+EXPORT_SYMBOL(v4l2_ctrl_query_fill_std);
 
 /*
  * Local variables: