Em Mon, 11 May 2009 12:31:43 +0300
Eduardo Valentin <eduardo.valentin@xxxxxxxxx> escreveu:
> This patch adds a new class of extended controls. This class
> is intended to support Radio Modulators properties such as:
> rds, audio limiters, audio compression, pilot tone generation,
> tuning power levels and region related properties.
>
> Signed-off-by: Eduardo Valentin <eduardo.valentin@xxxxxxxxx>
> ---
> include/linux/videodev2.h | 45 +++++++++++++++++++++++++++++++++++++++++++++
> 1 files changed, 45 insertions(+), 0 deletions(-)
>
> diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
> index ebb2ea6..7559299 100644
> --- a/include/linux/videodev2.h
> +++ b/include/linux/videodev2.h
> @@ -803,6 +803,7 @@ struct v4l2_ext_controls {
> #define V4L2_CTRL_CLASS_USER 0x00980000 /* Old-style 'user' controls */
> #define V4L2_CTRL_CLASS_MPEG 0x00990000 /* MPEG-compression controls */
> #define V4L2_CTRL_CLASS_CAMERA 0x009a0000 /* Camera class controls */
> +#define V4L2_CTRL_CLASS_FMTX 0x009b0000 /* FM Radio Modulator class controls */
>
> #define V4L2_CTRL_ID_MASK (0x0fffffff)
> #define V4L2_CTRL_ID2CLASS(id) ((id) & 0x0fff0000UL)
> @@ -1141,6 +1142,50 @@ enum v4l2_exposure_auto_type {
>
> #define V4L2_CID_PRIVACY (V4L2_CID_CAMERA_CLASS_BASE+16)
>
> +/* FM Radio Modulator class control IDs */
> +#define V4L2_CID_FMTX_CLASS_BASE (V4L2_CTRL_CLASS_FMTX | 0x900)
> +#define V4L2_CID_FMTX_CLASS (V4L2_CTRL_CLASS_FMTX | 1)
> +
> +#define V4L2_CID_RDS_ENABLED (V4L2_CID_FMTX_CLASS_BASE + 1)
> +#define V4L2_CID_RDS_PI (V4L2_CID_FMTX_CLASS_BASE + 2)
> +#define V4L2_CID_RDS_PTY (V4L2_CID_FMTX_CLASS_BASE + 3)
> +#define V4L2_CID_RDS_PS_NAME (V4L2_CID_FMTX_CLASS_BASE + 4)
> +#define V4L2_CID_RDS_RADIO_TEXT (V4L2_CID_FMTX_CLASS_BASE + 5)
> +
> +#define V4L2_CID_AUDIO_LIMITER_ENABLED (V4L2_CID_FMTX_CLASS_BASE + 6)
> +#define V4L2_CID_AUDIO_LIMITER_RELEASE_TIME (V4L2_CID_FMTX_CLASS_BASE + 7)
> +#define V4L2_CID_AUDIO_LIMITER_DEVIATION (V4L2_CID_FMTX_CLASS_BASE + 8)
> +
> +#define V4L2_CID_AUDIO_COMPRESSION_ENABLED (V4L2_CID_FMTX_CLASS_BASE + 9)
> +#define V4L2_CID_AUDIO_COMPRESSION_GAIN (V4L2_CID_FMTX_CLASS_BASE + 10)
> +#define V4L2_CID_AUDIO_COMPRESSION_THRESHOLD (V4L2_CID_FMTX_CLASS_BASE + 11)
> +#define V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME (V4L2_CID_FMTX_CLASS_BASE + 12)
> +#define V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME (V4L2_CID_FMTX_CLASS_BASE + 13)
> +
> +#define V4L2_CID_PILOT_TONE_ENABLED (V4L2_CID_FMTX_CLASS_BASE + 14)
> +#define V4L2_CID_PILOT_TONE_DEVIATION (V4L2_CID_FMTX_CLASS_BASE + 15)
> +#define V4L2_CID_PILOT_TONE_FREQUENCY (V4L2_CID_FMTX_CLASS_BASE + 16)
> +
> +#define V4L2_CID_REGION (V4L2_CID_FMTX_CLASS_BASE + 17)
> +enum v4l2_fmtx_region {
> + V4L2_FMTX_REGION_USA = 0,
> + V4L2_FMTX_REGION_AUSTRALIA = 1,
> + V4L2_FMTX_REGION_EUROPE = 2,
> + V4L2_FMTX_REGION_JAPAN = 3,
> + V4L2_FMTX_REGION_JAPAN_WIDE_BAND = 4,
> +};
Hmm... the region is not just a derived parameter, based on
preemphasis/frequencies, and channel stepping? What this parameter controls?
> +#define V4L2_CID_REGION_BOTTOM_FREQUENCY (V4L2_CID_FMTX_CLASS_BASE + 18)
> +#define V4L2_CID_REGION_TOP_FREQUENCY (V4L2_CID_FMTX_CLASS_BASE + 19)
> +#define V4L2_CID_REGION_PREEMPHASIS (V4L2_CID_FMTX_CLASS_BASE + 20)
> +enum v4l2_fmtx_preemphasis {
> + V4L2_FMTX_PREEMPHASIS_75_uS = 0,
> + V4L2_FMTX_PREEMPHASIS_50_uS = 1,
> + V4L2_FMTX_PREEMPHASIS_DISABLED = 2,
> +};
> +#define V4L2_CID_REGION_CHANNEL_SPACING (V4L2_CID_FMTX_CLASS_BASE + 21)
> +#define V4L2_CID_TUNE_POWER_LEVEL (V4L2_CID_FMTX_CLASS_BASE + 22)
> +#define V4L2_CID_TUNE_ANTENNA_CAPACITOR (V4L2_CID_FMTX_CLASS_BASE + 23)
> +
> /*
> * T U N I N G
> */
Cheers,
Mauro
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