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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
#define NO_AVE 0x0
#define AVE_2_PIX 0x1
#define AVE_4_PIX 0x2
#define AVE_8_PIX 0x3
/* Features list */
#define PREV_LUMA_ENHANCE OMAP3ISP_PREV_LUMAENH
#define PREV_INVERSE_ALAW OMAP3ISP_PREV_INVALAW
#define PREV_HORZ_MEDIAN_FILTER OMAP3ISP_PREV_HRZ_MED
#define PREV_CFA OMAP3ISP_PREV_CFA
#define PREV_CHROMA_SUPPRESS OMAP3ISP_PREV_CHROMA_SUPP
#define PREV_WB OMAP3ISP_PREV_WB
#define PREV_BLKADJ OMAP3ISP_PREV_BLKADJ
#define PREV_RGB2RGB OMAP3ISP_PREV_RGB2RGB
#define PREV_COLOR_CONV OMAP3ISP_PREV_COLOR_CONV
#define PREV_YCLIMITS OMAP3ISP_PREV_YC_LIMIT
#define PREV_DEFECT_COR OMAP3ISP_PREV_DEFECT_COR
#define PREV_GAMMA_BYPASS OMAP3ISP_PREV_GAMMABYPASS
#define PREV_DARK_FRAME_CAPTURE OMAP3ISP_PREV_DRK_FRM_CAPTURE
#define PREV_DARK_FRAME_SUBTRACT OMAP3ISP_PREV_DRK_FRM_SUBTRACT
#define PREV_LENS_SHADING OMAP3ISP_PREV_LENS_SHADING
#define PREV_NOISE_FILTER OMAP3ISP_PREV_NF
#define PREV_GAMMA OMAP3ISP_PREV_GAMMA
#define PREV_CONTRAST (1 << 17)
#define PREV_BRIGHTNESS (1 << 18)
#define PREV_AVERAGER (1 << 19)
#define PREV_FEATURES_END (1 << 20)
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
* @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.
* @blk_adj: Black adjustment parameters.
* @rgb2rgb: RGB blending parameters.
* @rgb2ycbcr: RGB to ycbcr parameters.
* @hmed: Horizontal median filter.
* @yclimit: YC limits parameters.
* @average: Downsampling rate for averager.
* @contrast: Contrast.
* @brightness: Brightness.
*/
struct prev_params {
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 blk_adj;
struct omap3isp_prev_rgbtorgb rgb2rgb;
struct omap3isp_prev_csc rgb2ycbcr;
struct omap3isp_prev_hmed hmed;
struct omap3isp_prev_yclimit yclimit;
u8 average;
u8 contrast;
u8 brightness;
};
/*
* struct isptables_update - Structure for Table Configuration.
* @update: Specifies which tables should be updated.
* @flag: Specifies which tables should be enabled.
* @nf: Pointer to structure for Noise Filter
* @lsc: Pointer to LSC gain table. (currently not used)
* @gamma: Pointer to gamma correction tables.
* @cfa: Pointer to color filter array configuration.
* @wbal: Pointer to colour and digital gain configuration.
*/
struct isptables_update {
u32 update;
u32 flag;
struct omap3isp_prev_nf *nf;
u32 *lsc;
struct omap3isp_prev_gtables *gamma;
struct omap3isp_prev_cfa *cfa;
struct omap3isp_prev_wbal *wbal;
};
/* 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
* @input: Module currently connected to the input pad
* @output: Bitmask of the active output
* @video_in: Input video entity
* @video_out: Output video entity
* @error: A hardware error occured during capture
* @params: Module configuration data
* @shadow_update: If set, update the hardware configured in the next interrupt
* @underrun: Whether the preview entity has queued buffers on the output
* @state: Current preview pipeline state
* @lock: Shadow update lock
* @update: Bitmask of the parameters to be updated
*
* 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_ctrl_handler ctrls;
enum preview_input_entity input;
unsigned int output;
struct isp_video video_in;
struct isp_video video_out;
unsigned int error;
struct prev_params params;
unsigned int shadow_update:1;
enum isp_pipeline_stream_state state;
wait_queue_head_t wait;
atomic_t stopping;
spinlock_t lock;
u32 update;
};
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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