1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Support for Intel Camera Imaging ISP subsystem.
4 * Copyright (c) 2015, Intel Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13 * more details.
14 */
15
16#include "ia_css_types.h"
17#include "sh_css_defs.h"
18#ifndef IA_CSS_NO_DEBUG
19#include "ia_css_debug.h"
20#endif
21#include "sh_css_frac.h"
22
23#include "ia_css_wb.host.h"
24
25const struct ia_css_wb_config default_wb_config = {
26	1,
27	32768,
28	32768,
29	32768,
30	32768
31};
32
33void
34ia_css_wb_encode(
35    struct sh_css_isp_wb_params *to,
36    const struct ia_css_wb_config *from,
37    unsigned int size)
38{
39	(void)size;
40	to->gain_shift =
41	    uISP_REG_BIT - from->integer_bits;
42	to->gain_gr =
43	    uDIGIT_FITTING(from->gr, 16 - from->integer_bits,
44			   to->gain_shift);
45	to->gain_r =
46	    uDIGIT_FITTING(from->r, 16 - from->integer_bits,
47			   to->gain_shift);
48	to->gain_b =
49	    uDIGIT_FITTING(from->b, 16 - from->integer_bits,
50			   to->gain_shift);
51	to->gain_gb =
52	    uDIGIT_FITTING(from->gb, 16 - from->integer_bits,
53			   to->gain_shift);
54}
55
56#ifndef IA_CSS_NO_DEBUG
57void
58ia_css_wb_dump(
59    const struct sh_css_isp_wb_params *wb,
60    unsigned int level)
61{
62	if (!wb) return;
63	ia_css_debug_dtrace(level, "White Balance:\n");
64	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
65			    "wb_gain_shift", wb->gain_shift);
66	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
67			    "wb_gain_gr", wb->gain_gr);
68	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
69			    "wb_gain_r", wb->gain_r);
70	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
71			    "wb_gain_b", wb->gain_b);
72	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
73			    "wb_gain_gb", wb->gain_gb);
74}
75
76void
77ia_css_wb_debug_dtrace(
78    const struct ia_css_wb_config *config,
79    unsigned int level)
80{
81	ia_css_debug_dtrace(level,
82			    "config.integer_bits=%d, config.gr=%d, config.r=%d, config.b=%d, config.gb=%d\n",
83			    config->integer_bits,
84			    config->gr, config->r,
85			    config->b, config->gb);
86}
87#endif
88