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/*
* 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>
*
* 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.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#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 0x1
#define ISPPRV_BRIGHT_DEF 0x0
#define ISPPRV_BRIGHT_LOW 0x0
#define ISPPRV_BRIGHT_HIGH 0xFF
#define ISPPRV_BRIGHT_UNITS 0x1
#define ISPPRV_CONTRAST_STEP 0x1
#define ISPPRV_CONTRAST_DEF 0x10
#define ISPPRV_CONTRAST_LOW 0x0
#define ISPPRV_CONTRAST_HIGH 0xFF
#define ISPPRV_CONTRAST_UNITS 0x1
/* 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 {
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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