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 <linux/string.h> /* for memcpy() */
17 
18 #include <type_support.h>
19 #include "system_global.h"
20 #include "vamem.h"
21 #include "ia_css_types.h"
22 #include "ia_css_gc_table.host.h"
23 
24 
25 struct ia_css_gamma_table default_gamma_table;
26 
27 static const uint16_t
28 default_gamma_table_data[IA_CSS_VAMEM_2_GAMMA_TABLE_SIZE] = {
29 	0,   4,   8,  12,  17,  21,  27,  32,
30 	38,  44,  49,  55,  61,  66,  71,  76,
31 	80,  84,  88,  92,  95,  98, 102, 105,
32 	108, 110, 113, 116, 118, 121, 123, 126,
33 	128, 130, 132, 135, 137, 139, 141, 143,
34 	145, 146, 148, 150, 152, 153, 155, 156,
35 	158, 160, 161, 162, 164, 165, 166, 168,
36 	169, 170, 171, 172, 174, 175, 176, 177,
37 	178, 179, 180, 181, 182, 183, 184, 184,
38 	185, 186, 187, 188, 189, 189, 190, 191,
39 	192, 192, 193, 194, 195, 195, 196, 197,
40 	197, 198, 198, 199, 200, 200, 201, 201,
41 	202, 203, 203, 204, 204, 205, 205, 206,
42 	206, 207, 207, 208, 208, 209, 209, 210,
43 	210, 210, 211, 211, 212, 212, 213, 213,
44 	214, 214, 214, 215, 215, 216, 216, 216,
45 	217, 217, 218, 218, 218, 219, 219, 220,
46 	220, 220, 221, 221, 222, 222, 222, 223,
47 	223, 223, 224, 224, 225, 225, 225, 226,
48 	226, 226, 227, 227, 227, 228, 228, 228,
49 	229, 229, 229, 230, 230, 230, 231, 231,
50 	231, 232, 232, 232, 233, 233, 233, 234,
51 	234, 234, 234, 235, 235, 235, 236, 236,
52 	236, 237, 237, 237, 237, 238, 238, 238,
53 	239, 239, 239, 239, 240, 240, 240, 241,
54 	241, 241, 241, 242, 242, 242, 242, 243,
55 	243, 243, 243, 244, 244, 244, 245, 245,
56 	245, 245, 246, 246, 246, 246, 247, 247,
57 	247, 247, 248, 248, 248, 248, 249, 249,
58 	249, 249, 250, 250, 250, 250, 251, 251,
59 	251, 251, 252, 252, 252, 252, 253, 253,
60 	253, 253, 254, 254, 254, 254, 255, 255,
61 	255
62 };
63 
64 
65 void
ia_css_config_gamma_table(void)66 ia_css_config_gamma_table(void)
67 {
68 	memcpy(default_gamma_table.data.vamem_2, default_gamma_table_data,
69 	       sizeof(default_gamma_table_data));
70 	default_gamma_table.vamem_type   = IA_CSS_VAMEM_TYPE_2;
71 }
72