1 /*
2  * Support for Intel Camera Imaging ISP subsystem.
3  * Copyright (c) 2015, Intel Corporation.
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms and conditions of the GNU General Public License,
7  * version 2, as published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12  * more details.
13  */
14 
15 #include "ia_css_types.h"
16 #include "sh_css_defs.h"
17 #include "ia_css_debug.h"
18 #include "sh_css_frac.h"
19 
20 #include "ia_css_dp.host.h"
21 
22 /* We use a different set of DPC configuration parameters when
23  * DPC is used before OBC and NORM. Currently these parameters
24  * are used in usecases which selects both BDS and DPC.
25  **/
26 const struct ia_css_dp_config default_dp_10bpp_config = {
27 	1024,
28 	2048,
29 	32768,
30 	32768,
31 	32768,
32 	32768
33 };
34 
35 const struct ia_css_dp_config default_dp_config = {
36 	8192,
37 	2048,
38 	32768,
39 	32768,
40 	32768,
41 	32768
42 };
43 
44 void
45 ia_css_dp_encode(
46     struct sh_css_isp_dp_params *to,
47     const struct ia_css_dp_config *from,
48     unsigned int size)
49 {
50 	int gain = from->gain;
51 	int gr   = from->gr;
52 	int r    = from->r;
53 	int b    = from->b;
54 	int gb   = from->gb;
55 
56 	(void)size;
57 	to->threshold_single =
58 	    SH_CSS_BAYER_MAXVAL;
59 	to->threshold_2adjacent =
60 	    uDIGIT_FITTING(from->threshold, 16, SH_CSS_BAYER_BITS);
61 	to->gain =
62 	    uDIGIT_FITTING(from->gain, 8, SH_CSS_DP_GAIN_SHIFT);
63 
64 	to->coef_rr_gr =
65 	    uDIGIT_FITTING(gain * gr / r, 8, SH_CSS_DP_GAIN_SHIFT);
66 	to->coef_rr_gb =
67 	    uDIGIT_FITTING(gain * gb / r, 8, SH_CSS_DP_GAIN_SHIFT);
68 	to->coef_bb_gb =
69 	    uDIGIT_FITTING(gain * gb / b, 8, SH_CSS_DP_GAIN_SHIFT);
70 	to->coef_bb_gr =
71 	    uDIGIT_FITTING(gain * gr / b, 8, SH_CSS_DP_GAIN_SHIFT);
72 	to->coef_gr_rr =
73 	    uDIGIT_FITTING(gain * r / gr, 8, SH_CSS_DP_GAIN_SHIFT);
74 	to->coef_gr_bb =
75 	    uDIGIT_FITTING(gain * b / gr, 8, SH_CSS_DP_GAIN_SHIFT);
76 	to->coef_gb_bb =
77 	    uDIGIT_FITTING(gain * b / gb, 8, SH_CSS_DP_GAIN_SHIFT);
78 	to->coef_gb_rr =
79 	    uDIGIT_FITTING(gain * r / gb, 8, SH_CSS_DP_GAIN_SHIFT);
80 }
81 
82 void
83 ia_css_dp_dump(
84     const struct sh_css_isp_dp_params *dp,
85     unsigned int level)
86 {
87 	if (!dp) return;
88 	ia_css_debug_dtrace(level, "Defect Pixel Correction:\n");
89 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
90 			    "dp_threshold_single_w_2adj_on",
91 			    dp->threshold_single);
92 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
93 			    "dp_threshold_2adj_w_2adj_on",
94 			    dp->threshold_2adjacent);
95 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
96 			    "dp_gain", dp->gain);
97 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
98 			    "dpc_coef_rr_gr", dp->coef_rr_gr);
99 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
100 			    "dpc_coef_rr_gb", dp->coef_rr_gb);
101 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
102 			    "dpc_coef_bb_gb", dp->coef_bb_gb);
103 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
104 			    "dpc_coef_bb_gr", dp->coef_bb_gr);
105 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
106 			    "dpc_coef_gr_rr", dp->coef_gr_rr);
107 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
108 			    "dpc_coef_gr_bb", dp->coef_gr_bb);
109 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
110 			    "dpc_coef_gb_bb", dp->coef_gb_bb);
111 	ia_css_debug_dtrace(level, "\t%-32s = %d\n",
112 			    "dpc_coef_gb_rr", dp->coef_gb_rr);
113 }
114 
115 void
116 ia_css_dp_debug_dtrace(
117     const struct ia_css_dp_config *config,
118     unsigned int level)
119 {
120 	ia_css_debug_dtrace(level,
121 			    "config.threshold=%d, config.gain=%d\n",
122 			    config->threshold, config->gain);
123 }
124 
125 void
126 ia_css_init_dp_state(
127     void/*struct sh_css_isp_dp_vmem_state*/ * state,
128     size_t size)
129 {
130 	memset(state, 0, size);
131 }
132