linux/include/media/soc_mediabus.h
Laurent Pinchart 2ef2d5a336 [media] v4l: Move the media/v4l2-mediabus.h header to include/linux
The header defines the v4l2_mbus_framefmt structure which will be used
by the V4L2 subdevs userspace API.

Change the type of the v4l2_mbus_framefmt::code field to __u32, as enum
sizes can differ between different ABIs on the same architectures.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-03-22 04:53:21 -03:00

66 lines
1.9 KiB
C

/*
* SoC-camera Media Bus API extensions
*
* Copyright (C) 2009, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef SOC_MEDIABUS_H
#define SOC_MEDIABUS_H
#include <linux/videodev2.h>
#include <linux/v4l2-mediabus.h>
/**
* enum soc_mbus_packing - data packing types on the media-bus
* @SOC_MBUS_PACKING_NONE: no packing, bit-for-bit transfer to RAM
* @SOC_MBUS_PACKING_2X8_PADHI: 16 bits transferred in 2 8-bit samples, in the
* possibly incomplete byte high bits are padding
* @SOC_MBUS_PACKING_2X8_PADLO: as above, but low bits are padding
* @SOC_MBUS_PACKING_EXTEND16: sample width (e.g., 10 bits) has to be extended
* to 16 bits
*/
enum soc_mbus_packing {
SOC_MBUS_PACKING_NONE,
SOC_MBUS_PACKING_2X8_PADHI,
SOC_MBUS_PACKING_2X8_PADLO,
SOC_MBUS_PACKING_EXTEND16,
};
/**
* enum soc_mbus_order - sample order on the media bus
* @SOC_MBUS_ORDER_LE: least significant sample first
* @SOC_MBUS_ORDER_BE: most significant sample first
*/
enum soc_mbus_order {
SOC_MBUS_ORDER_LE,
SOC_MBUS_ORDER_BE,
};
/**
* struct soc_mbus_pixelfmt - Data format on the media bus
* @name: Name of the format
* @fourcc: Fourcc code, that will be obtained if the data is
* stored in memory in the following way:
* @packing: Type of sample-packing, that has to be used
* @order: Sample order when storing in memory
* @bits_per_sample: How many bits the bridge has to sample
*/
struct soc_mbus_pixelfmt {
const char *name;
u32 fourcc;
enum soc_mbus_packing packing;
enum soc_mbus_order order;
u8 bits_per_sample;
};
const struct soc_mbus_pixelfmt *soc_mbus_get_fmtdesc(
enum v4l2_mbus_pixelcode code);
s32 soc_mbus_bytes_per_line(u32 width, const struct soc_mbus_pixelfmt *mf);
int soc_mbus_samples_per_pixel(const struct soc_mbus_pixelfmt *mf);
#endif