/*
 * 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.
 */

#include "ia_css_types.h"
#include "sh_css_defs.h"
#ifndef IA_CSS_NO_DEBUG
#include "ia_css_debug.h"
#endif
#include "sh_css_frac.h"

#include "ia_css_wb.host.h"

const struct ia_css_wb_config default_wb_config = {
	1,
	32768,
	32768,
	32768,
	32768
};

void
ia_css_wb_encode(
	struct sh_css_isp_wb_params *to,
	const struct ia_css_wb_config *from,
	unsigned size)
{
	(void)size;
	to->gain_shift =
	    uISP_REG_BIT - from->integer_bits;
	to->gain_gr =
	    uDIGIT_FITTING(from->gr, 16 - from->integer_bits,
			   to->gain_shift);
	to->gain_r =
	    uDIGIT_FITTING(from->r, 16 - from->integer_bits,
			   to->gain_shift);
	to->gain_b =
	    uDIGIT_FITTING(from->b, 16 - from->integer_bits,
			   to->gain_shift);
	to->gain_gb =
	    uDIGIT_FITTING(from->gb, 16 - from->integer_bits,
			   to->gain_shift);
}

#ifndef IA_CSS_NO_DEBUG
void
ia_css_wb_dump(
	const struct sh_css_isp_wb_params *wb,
	unsigned level)
{
	if (!wb) return;
	ia_css_debug_dtrace(level, "White Balance:\n");
	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
			"wb_gain_shift", wb->gain_shift);
	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
			"wb_gain_gr", wb->gain_gr);
	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
			"wb_gain_r", wb->gain_r);
	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
			"wb_gain_b", wb->gain_b);
	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
			"wb_gain_gb", wb->gain_gb);
}

void
ia_css_wb_debug_dtrace(
	const struct ia_css_wb_config *config,
	unsigned level)
{
	ia_css_debug_dtrace(level,
		"config.integer_bits=%d, "
		"config.gr=%d, config.r=%d, "
		"config.b=%d, config.gb=%d\n",
		config->integer_bits,
		config->gr, config->r,
		config->b, config->gb);
}
#endif