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#include "ia_css_debug.h"
19#include "sh_css_frac.h"
20
21#include "ia_css_dp.host.h"
22
23/* We use a different set of DPC configuration parameters when
24 * DPC is used before OBC and NORM. Currently these parameters
25 * are used in usecases which selects both BDS and DPC.
26 **/
27const struct ia_css_dp_config default_dp_10bpp_config = {
28	1024,
29	2048,
30	32768,
31	32768,
32	32768,
33	32768
34};
35
36const struct ia_css_dp_config default_dp_config = {
37	8192,
38	2048,
39	32768,
40	32768,
41	32768,
42	32768
43};
44
45void
46ia_css_dp_encode(
47    struct sh_css_isp_dp_params *to,
48    const struct ia_css_dp_config *from,
49    unsigned int size)
50{
51	int gain = from->gain;
52	int gr   = from->gr;
53	int r    = from->r;
54	int b    = from->b;
55	int gb   = from->gb;
56
57	(void)size;
58	to->threshold_single =
59	    SH_CSS_BAYER_MAXVAL;
60	to->threshold_2adjacent =
61	    uDIGIT_FITTING(from->threshold, 16, SH_CSS_BAYER_BITS);
62	to->gain =
63	    uDIGIT_FITTING(from->gain, 8, SH_CSS_DP_GAIN_SHIFT);
64
65	to->coef_rr_gr =
66	    uDIGIT_FITTING(gain * gr / r, 8, SH_CSS_DP_GAIN_SHIFT);
67	to->coef_rr_gb =
68	    uDIGIT_FITTING(gain * gb / r, 8, SH_CSS_DP_GAIN_SHIFT);
69	to->coef_bb_gb =
70	    uDIGIT_FITTING(gain * gb / b, 8, SH_CSS_DP_GAIN_SHIFT);
71	to->coef_bb_gr =
72	    uDIGIT_FITTING(gain * gr / b, 8, SH_CSS_DP_GAIN_SHIFT);
73	to->coef_gr_rr =
74	    uDIGIT_FITTING(gain * r / gr, 8, SH_CSS_DP_GAIN_SHIFT);
75	to->coef_gr_bb =
76	    uDIGIT_FITTING(gain * b / gr, 8, SH_CSS_DP_GAIN_SHIFT);
77	to->coef_gb_bb =
78	    uDIGIT_FITTING(gain * b / gb, 8, SH_CSS_DP_GAIN_SHIFT);
79	to->coef_gb_rr =
80	    uDIGIT_FITTING(gain * r / gb, 8, SH_CSS_DP_GAIN_SHIFT);
81}
82
83void
84ia_css_dp_dump(
85    const struct sh_css_isp_dp_params *dp,
86    unsigned int level)
87{
88	if (!dp) return;
89	ia_css_debug_dtrace(level, "Defect Pixel Correction:\n");
90	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
91			    "dp_threshold_single_w_2adj_on",
92			    dp->threshold_single);
93	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
94			    "dp_threshold_2adj_w_2adj_on",
95			    dp->threshold_2adjacent);
96	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
97			    "dp_gain", dp->gain);
98	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
99			    "dpc_coef_rr_gr", dp->coef_rr_gr);
100	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
101			    "dpc_coef_rr_gb", dp->coef_rr_gb);
102	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
103			    "dpc_coef_bb_gb", dp->coef_bb_gb);
104	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
105			    "dpc_coef_bb_gr", dp->coef_bb_gr);
106	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
107			    "dpc_coef_gr_rr", dp->coef_gr_rr);
108	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
109			    "dpc_coef_gr_bb", dp->coef_gr_bb);
110	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
111			    "dpc_coef_gb_bb", dp->coef_gb_bb);
112	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
113			    "dpc_coef_gb_rr", dp->coef_gb_rr);
114}
115
116void
117ia_css_dp_debug_dtrace(
118    const struct ia_css_dp_config *config,
119    unsigned int level)
120{
121	ia_css_debug_dtrace(level,
122			    "config.threshold=%d, config.gain=%d\n",
123			    config->threshold, config->gain);
124}
125
126void
127ia_css_init_dp_state(
128    void/*struct sh_css_isp_dp_vmem_state*/ * state,
129    size_t size)
130{
131	memset(state, 0, size);
132}
133