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[media] V4L: Add driver for S3C24XX/S3C64XX SoC series camera interface

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This patch adds V4L2 driver for Samsung S3C24XX/S3C64XX SoC series
camera interface. The driver exposes a subdev device node for CAMIF
pixel resolution and crop control and two video capture nodes - for
the "codec" and "preview" data paths. It has been tested on Mini2440
(s3c2440) and Mini6410 (s3c6410) board with gstreamer and mplayer.

Signed-off-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Andrey Gusakov <dron0gus@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Sylwester Nawrocki
2012-08-22 20:09:18 -03:00
committed by Mauro Carvalho Chehab
parent d033a308d8
commit babde1c243
9 changed files with 3665 additions and 0 deletions
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45
include/media/s3c_camif.h Normal file
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/*
* s3c24xx/s3c64xx SoC series Camera Interface (CAMIF) driver
*
* Copyright (C) 2012 Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
*
* 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 MEDIA_S3C_CAMIF_
#define MEDIA_S3C_CAMIF_
#include <linux/i2c.h>
#include <media/v4l2-mediabus.h>
/**
* struct s3c_camif_sensor_info - an image sensor description
* @i2c_board_info: pointer to an I2C sensor subdevice board info
* @clock_frequency: frequency of the clock the host provides to a sensor
* @mbus_type: media bus type
* @i2c_bus_num: i2c control bus id the sensor is attached to
* @flags: the parallel bus flags defining signals polarity (V4L2_MBUS_*)
* @use_field: 1 if parallel bus FIELD signal is used (only s3c64xx)
*/
struct s3c_camif_sensor_info {
struct i2c_board_info i2c_board_info;
unsigned long clock_frequency;
enum v4l2_mbus_type mbus_type;
u16 i2c_bus_num;
u16 flags;
u8 use_field;
};
struct s3c_camif_plat_data {
struct s3c_camif_sensor_info sensor;
int (*gpio_get)(void);
int (*gpio_put)(void);
};
/* Platform default helper functions */
int s3c_camif_gpio_get(void);
int s3c_camif_gpio_put(void);
#endif /* MEDIA_S3C_CAMIF_ */