+/* 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;
+}
+