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/*
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* Samsung S5P / Exynos4 SoC series camera interface driver header
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*
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* Copyright ( C ) 2010 - 2013 Samsung Electronics Co . , Ltd .
* Sylwester Nawrocki < s . nawrocki @ samsung . com >
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*
* 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 .
*/
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# ifndef S5P_FIMC_H_
# define S5P_FIMC_H_
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# include <media/media-entity.h>
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/*
* Enumeration of the FIMC data bus types .
*/
enum fimc_bus_type {
/* Camera parallel bus */
FIMC_BUS_TYPE_ITU_601 = 1 ,
/* Camera parallel bus with embedded synchronization */
FIMC_BUS_TYPE_ITU_656 ,
/* Camera MIPI-CSI2 serial bus */
FIMC_BUS_TYPE_MIPI_CSI2 ,
/* FIFO link from LCD controller (WriteBack A) */
FIMC_BUS_TYPE_LCD_WRITEBACK_A ,
/* FIFO link from LCD controller (WriteBack B) */
FIMC_BUS_TYPE_LCD_WRITEBACK_B ,
/* FIFO link from FIMC-IS */
FIMC_BUS_TYPE_ISP_WRITEBACK = FIMC_BUS_TYPE_LCD_WRITEBACK_B ,
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} ;
struct i2c_board_info ;
/**
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* struct fimc_source_info - video source description required for the host
* interface configuration
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*
* @ board_info : pointer to I2C subdevice ' s board info
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* @ clk_frequency : frequency of the clock the host interface provides to sensor
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* @ fimc_bus_type : FIMC camera input type
* @ sensor_bus_type : image sensor bus type , MIPI , ITU - R BT .601 etc .
* @ flags : the parallel sensor bus flags defining signals polarity ( V4L2_MBUS_ * )
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* @ i2c_bus_num : i2c control bus id the sensor is attached to
* @ mux_id : FIMC camera interface multiplexer index ( separate for MIPI and ITU )
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* @ clk_id : index of the SoC peripheral clock for sensors
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*/
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struct fimc_source_info {
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struct i2c_board_info * board_info ;
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unsigned long clk_frequency ;
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enum fimc_bus_type fimc_bus_type ;
enum fimc_bus_type sensor_bus_type ;
u16 flags ;
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u16 i2c_bus_num ;
u16 mux_id ;
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u8 clk_id ;
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} ;
/**
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* struct s5p_platform_fimc - camera host interface platform data
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*
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* @ source_info : properties of an image source for the host interface setup
* @ num_clients : the number of attached image sources
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*/
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struct s5p_platform_fimc {
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struct fimc_source_info * source_info ;
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int num_clients ;
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} ;
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/*
* v4l2_device notification id . This is only for internal use in the kernel .
* Sensor subdevs should issue S5P_FIMC_TX_END_NOTIFY notification in single
* frame capture mode when there is only one VSYNC pulse issued by the sensor
* at begining of the frame transmission .
*/
# define S5P_FIMC_TX_END_NOTIFY _IO('e', 0)
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enum fimc_subdev_index {
IDX_SENSOR ,
IDX_CSIS ,
IDX_FLITE ,
IDX_FIMC ,
IDX_MAX ,
} ;
struct media_pipeline ;
struct v4l2_subdev ;
struct fimc_pipeline {
struct v4l2_subdev * subdevs [ IDX_MAX ] ;
struct media_pipeline * m_pipeline ;
} ;
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/*
* Media pipeline operations to be called from within the fimc ( - lite )
* video node when it is the last entity of the pipeline . Implemented
* by corresponding media device driver .
*/
struct fimc_pipeline_ops {
int ( * open ) ( struct fimc_pipeline * p , struct media_entity * me ,
bool resume ) ;
int ( * close ) ( struct fimc_pipeline * p ) ;
int ( * set_stream ) ( struct fimc_pipeline * p , bool state ) ;
} ;
# define fimc_pipeline_call(f, op, p, args...) \
( ! ( f ) ? - ENODEV : ( ( ( f ) - > pipeline_ops & & ( f ) - > pipeline_ops - > op ) ? \
( f ) - > pipeline_ops - > op ( ( p ) , # # args ) : - ENOIOCTLCMD ) )
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# endif /* S5P_FIMC_H_ */