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
25 const struct ia_css_wb_config default_wb_config = {
26 1,
27 32768,
28 32768,
29 32768,
30 32768
31 };
32
33 void
ia_css_wb_encode(struct sh_css_isp_wb_params * to,const struct ia_css_wb_config * from,unsigned int size)34 ia_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
57 void
ia_css_wb_dump(const struct sh_css_isp_wb_params * wb,unsigned int level)58 ia_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
76 void
ia_css_wb_debug_dtrace(const struct ia_css_wb_config * config,unsigned int level)77 ia_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