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/*
* Support for Intel Camera Imaging ISP subsystem.
* Copyright (c) 2015, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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.
*/
#ifndef __IA_CSS_XNR3_PARAM_H
#define __IA_CSS_XNR3_PARAM_H
#include "type_support.h"
#include "vmem.h" /* ISP2401: needed for VMEM_ARRAY */
/* Scaling factor of the alpha values: which fixed-point value represents 1.0?
* It must be chosen such that 1/min_sigma still fits in an ISP vector
* element. */
#define XNR_ALPHA_SCALE_LOG2 5
#define XNR_ALPHA_SCALE_FACTOR BIT(XNR_ALPHA_SCALE_LOG2)
/* Scaling factor of the coring values on the ISP. */
#define XNR_CORING_SCALE_LOG2 (ISP_VEC_ELEMBITS - 1)
#define XNR_CORING_SCALE_FACTOR BIT(XNR_CORING_SCALE_LOG2)
/* Scaling factor of the blending strength on the ISP. */
#define XNR_BLENDING_SCALE_LOG2 (ISP_VEC_ELEMBITS - 1)
#define XNR_BLENDING_SCALE_FACTOR BIT(XNR_BLENDING_SCALE_LOG2)
/* XNR3 filter size. Must be 11x11, 9x9 or 5x5. */
#define XNR_FILTER_SIZE 5
/* XNR3 alpha (1/sigma) parameters on the ISP, expressed as a base (0) value
* for dark areas, and a scaled diff towards the value for bright areas. */
struct sh_css_xnr3_alpha_params {
s32 y0;
s32 u0;
s32 v0;
s32 ydiff;
s32 udiff;
s32 vdiff;
};
/* XNR3 coring parameters on the ISP, expressed as a base (0) value
* for dark areas, and a scaled diff towards the value for bright areas. */
struct sh_css_xnr3_coring_params {
s32 u0;
s32 v0;
s32 udiff;
s32 vdiff;
};
/* XNR3 blending strength on the ISP. */
struct sh_css_xnr3_blending_params {
s32 strength;
};
/* XNR3 ISP parameters */
struct sh_css_isp_xnr3_params {
struct sh_css_xnr3_alpha_params alpha;
struct sh_css_xnr3_coring_params coring;
struct sh_css_xnr3_blending_params blending;
};
/* ISP2401 */
/*
* STRUCT sh_css_isp_xnr3_vmem_params
* -----------------------------------------------
* ISP VMEM parameters
*/
struct sh_css_isp_xnr3_vmem_params {
VMEM_ARRAY(x, ISP_VEC_NELEMS);
VMEM_ARRAY(a, ISP_VEC_NELEMS);
VMEM_ARRAY(b, ISP_VEC_NELEMS);
VMEM_ARRAY(c, ISP_VEC_NELEMS);
};
#endif /*__IA_CSS_XNR3_PARAM_H */
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