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[media] v4l2-ctrls: add new RDS TX controls

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The si4713 supports several RDS features not yet implemented in the driver.

This patch adds the missing RDS functionality to the list of RDS controls.

The ALT_FREQS control is a compound control containing an array of up
to 25 (the maximum according to the RDS standard) frequencies. To support
that the V4L2_CTRL_TYPE_U32 was added.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Hans Verkuil 2014-07-21 10:45:37 -03:00 • committed by Mauro Carvalho Chehab
commit 811c508104
4 changed files with 48 additions and 0 deletions
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2
include/uapi/linux/videodev2.h
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@ -1288,6 +1288,7 @@ struct v4l2_ext_control {
char *string;
__u8 *p_u8;
__u16 *p_u16;
__u32 *p_u32;
void *ptr;
};
} __attribute__ ((packed));
@ -1320,6 +1321,7 @@ enum v4l2_ctrl_type {
V4L2_CTRL_COMPOUND_TYPES = 0x0100,
V4L2_CTRL_TYPE_U8 = 0x0100,
V4L2_CTRL_TYPE_U16 = 0x0101,
V4L2_CTRL_TYPE_U32 = 0x0102,
};
/* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */