/* SPDX-License-Identifier: GPL-2.0-only */
/*
* isppreview . h
*
* TI OMAP3 ISP - Preview module
*
* Copyright ( C ) 2010 Nokia Corporation
* Copyright ( C ) 2009 Texas Instruments , Inc .
*
* Contacts : Laurent Pinchart < laurent . pinchart @ ideasonboard . com >
* Sakari Ailus < sakari . ailus @ iki . fi >
*/
#ifndef OMAP3_ISP_PREVIEW_H
#define OMAP3_ISP_PREVIEW_H
#include <linux/omap3isp.h>
#include <linux/types.h>
#include <media/v4l2-ctrls.h>
#include "ispvideo.h"
#define ISPPRV_BRIGHT_STEP 0 x1
#define ISPPRV_BRIGHT_DEF 0 x0
#define ISPPRV_BRIGHT_LOW 0 x0
#define ISPPRV_BRIGHT_HIGH 0 xFF
#define ISPPRV_BRIGHT_UNITS 0 x1
#define ISPPRV_CONTRAST_STEP 0 x1
#define ISPPRV_CONTRAST_DEF 0 x10
#define ISPPRV_CONTRAST_LOW 0 x0
#define ISPPRV_CONTRAST_HIGH 0 xFF
#define ISPPRV_CONTRAST_UNITS 0 x1
/* Additional features not listed in linux/omap3isp.h */
#define OMAP3ISP_PREV_CONTRAST (1 << 17 )
#define OMAP3ISP_PREV_BRIGHTNESS (1 << 18 )
#define OMAP3ISP_PREV_FEATURES_END (1 << 19 )
enum preview_input_entity {
PREVIEW_INPUT_NONE,
PREVIEW_INPUT_CCDC,
PREVIEW_INPUT_MEMORY,
};
#define PREVIEW_OUTPUT_RESIZER (1 << 1 )
#define PREVIEW_OUTPUT_MEMORY (1 << 2 )
/* Configure byte layout of YUV image */
enum preview_ycpos_mode {
YCPOS_YCrYCb = 0 ,
YCPOS_YCbYCr = 1 ,
YCPOS_CbYCrY = 2 ,
YCPOS_CrYCbY = 3
};
/*
* struct prev_params - Structure for all configuration
* @ busy : Bitmask of busy parameters ( being updated or used )
* @ update : Bitmask of the parameters to be updated
* @ features : Set of features enabled .
* @ cfa : CFA coefficients .
* @ csup : Chroma suppression coefficients .
* @ luma : Luma enhancement coefficients .
* @ nf : Noise filter coefficients .
* @ dcor : Noise filter coefficients .
* @ gamma : Gamma coefficients .
* @ wbal : White Balance parameters .
* @ blkadj : Black adjustment parameters .
* @ rgb2rgb : RGB blending parameters .
* @ csc : Color space conversion ( RGB to YCbCr ) parameters .
* @ hmed : Horizontal median filter .
* @ yclimit : YC limits parameters .
* @ contrast : Contrast .
* @ brightness : Brightness .
*/
struct prev_params {
u32 busy;
u32 update;
u32 features;
struct omap3isp_prev_cfa cfa;
struct omap3isp_prev_csup csup;
struct omap3isp_prev_luma luma;
struct omap3isp_prev_nf nf;
struct omap3isp_prev_dcor dcor;
struct omap3isp_prev_gtables gamma;
struct omap3isp_prev_wbal wbal;
struct omap3isp_prev_blkadj blkadj;
struct omap3isp_prev_rgbtorgb rgb2rgb;
struct omap3isp_prev_csc csc;
struct omap3isp_prev_hmed hmed;
struct omap3isp_prev_yclimit yclimit;
u8 contrast;
u8 brightness;
};
/* Sink and source previewer pads */
#define PREV_PAD_SINK 0
#define PREV_PAD_SOURCE 1
#define PREV_PADS_NUM 2
/*
* struct isp_prev_device - Structure for storing ISP Preview module information
* @ subdev : V4L2 subdevice
* @ pads : Media entity pads
* @ formats : Active formats at the subdev pad
* @ crop : Active crop rectangle
* @ input : Module currently connected to the input pad
* @ output : Bitmask of the active output
* @ video_in : Input video entity
* @ video_out : Output video entity
* @ params . params : Active and shadow parameters sets
* @ params . active : Bitmask of parameters active in set 0
* @ params . lock : Parameters lock , protects params . active and params . shadow
* @ underrun : Whether the preview entity has queued buffers on the output
* @ state : Current preview pipeline state
*
* This structure is used to store the OMAP ISP Preview module Information .
*/
struct isp_prev_device {
struct v4l2_subdev subdev;
struct media_pad pads[PREV_PADS_NUM];
struct v4l2_mbus_framefmt formats[PREV_PADS_NUM];
struct v4l2_rect crop;
struct v4l2_ctrl_handler ctrls;
enum preview_input_entity input;
unsigned int output;
struct isp_video video_in;
struct isp_video video_out;
struct {
unsigned int cfa_order;
struct prev_params params[2 ];
u32 active;
spinlock_t lock;
} params;
enum isp_pipeline_stream_state state;
wait_queue_head_t wait;
atomic_t stopping;
};
struct isp_device;
int omap3isp_preview_init(struct isp_device *isp);
void omap3isp_preview_cleanup(struct isp_device *isp);
int omap3isp_preview_register_entities(struct isp_prev_device *prv,
struct v4l2_device *vdev);
void omap3isp_preview_unregister_entities(struct isp_prev_device *prv);
void omap3isp_preview_isr_frame_sync(struct isp_prev_device *prev);
void omap3isp_preview_isr(struct isp_prev_device *prev);
int omap3isp_preview_busy(struct isp_prev_device *isp_prev);
void omap3isp_preview_restore_context(struct isp_device *isp);
#endif /* OMAP3_ISP_PREVIEW_H */
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