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1 | /* |
2 | * Copyright (C) 2013 - 2014 Texas Instruments, Inc. | |
3 | * | |
4 | * Benoit Parrot <bparrot@ti.com> | |
5 | * Lad, Prabhakar <prabhakar.csengg@gmail.com> | |
6 | * | |
7 | * This program is free software; you may redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; version 2 of the License. | |
10 | * | |
11 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
12 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
13 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
14 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
15 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
16 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
17 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
18 | * SOFTWARE. | |
19 | */ | |
20 | ||
21 | #ifndef AM437X_VPFE_USER_H | |
22 | #define AM437X_VPFE_USER_H | |
23 | ||
64bf8049 MY |
24 | #include <linux/videodev2.h> |
25 | ||
417d2e50 BP |
26 | enum vpfe_ccdc_data_size { |
27 | VPFE_CCDC_DATA_16BITS = 0, | |
28 | VPFE_CCDC_DATA_15BITS, | |
29 | VPFE_CCDC_DATA_14BITS, | |
30 | VPFE_CCDC_DATA_13BITS, | |
31 | VPFE_CCDC_DATA_12BITS, | |
32 | VPFE_CCDC_DATA_11BITS, | |
33 | VPFE_CCDC_DATA_10BITS, | |
34 | VPFE_CCDC_DATA_8BITS, | |
35 | }; | |
36 | ||
37 | /* enum for No of pixel per line to be avg. in Black Clamping*/ | |
38 | enum vpfe_ccdc_sample_length { | |
39 | VPFE_CCDC_SAMPLE_1PIXELS = 0, | |
40 | VPFE_CCDC_SAMPLE_2PIXELS, | |
41 | VPFE_CCDC_SAMPLE_4PIXELS, | |
42 | VPFE_CCDC_SAMPLE_8PIXELS, | |
43 | VPFE_CCDC_SAMPLE_16PIXELS, | |
44 | }; | |
45 | ||
46 | /* enum for No of lines in Black Clamping */ | |
47 | enum vpfe_ccdc_sample_line { | |
48 | VPFE_CCDC_SAMPLE_1LINES = 0, | |
49 | VPFE_CCDC_SAMPLE_2LINES, | |
50 | VPFE_CCDC_SAMPLE_4LINES, | |
51 | VPFE_CCDC_SAMPLE_8LINES, | |
52 | VPFE_CCDC_SAMPLE_16LINES, | |
53 | }; | |
54 | ||
55 | /* enum for Alaw gamma width */ | |
56 | enum vpfe_ccdc_gamma_width { | |
57 | VPFE_CCDC_GAMMA_BITS_15_6 = 0, /* use bits 15-6 for gamma */ | |
58 | VPFE_CCDC_GAMMA_BITS_14_5, | |
59 | VPFE_CCDC_GAMMA_BITS_13_4, | |
60 | VPFE_CCDC_GAMMA_BITS_12_3, | |
61 | VPFE_CCDC_GAMMA_BITS_11_2, | |
62 | VPFE_CCDC_GAMMA_BITS_10_1, | |
63 | VPFE_CCDC_GAMMA_BITS_09_0, /* use bits 9-0 for gamma */ | |
64 | }; | |
65 | ||
66 | /* structure for ALaw */ | |
67 | struct vpfe_ccdc_a_law { | |
68 | /* Enable/disable A-Law */ | |
69 | unsigned char enable; | |
70 | /* Gamma Width Input */ | |
71 | enum vpfe_ccdc_gamma_width gamma_wd; | |
72 | }; | |
73 | ||
74 | /* structure for Black Clamping */ | |
75 | struct vpfe_ccdc_black_clamp { | |
76 | unsigned char enable; | |
77 | /* only if bClampEnable is TRUE */ | |
78 | enum vpfe_ccdc_sample_length sample_pixel; | |
79 | /* only if bClampEnable is TRUE */ | |
80 | enum vpfe_ccdc_sample_line sample_ln; | |
81 | /* only if bClampEnable is TRUE */ | |
82 | unsigned short start_pixel; | |
83 | /* only if bClampEnable is TRUE */ | |
84 | unsigned short sgain; | |
85 | /* only if bClampEnable is FALSE */ | |
86 | unsigned short dc_sub; | |
87 | }; | |
88 | ||
89 | /* structure for Black Level Compensation */ | |
90 | struct vpfe_ccdc_black_compensation { | |
91 | /* Constant value to subtract from Red component */ | |
92 | char r; | |
93 | /* Constant value to subtract from Gr component */ | |
94 | char gr; | |
95 | /* Constant value to subtract from Blue component */ | |
96 | char b; | |
97 | /* Constant value to subtract from Gb component */ | |
98 | char gb; | |
99 | }; | |
100 | ||
101 | /* Structure for CCDC configuration parameters for raw capture mode passed | |
102 | * by application | |
103 | */ | |
104 | struct vpfe_ccdc_config_params_raw { | |
105 | /* data size value from 8 to 16 bits */ | |
106 | enum vpfe_ccdc_data_size data_sz; | |
107 | /* Structure for Optional A-Law */ | |
108 | struct vpfe_ccdc_a_law alaw; | |
109 | /* Structure for Optical Black Clamp */ | |
110 | struct vpfe_ccdc_black_clamp blk_clamp; | |
111 | /* Structure for Black Compensation */ | |
112 | struct vpfe_ccdc_black_compensation blk_comp; | |
113 | }; | |
114 | ||
115 | /* | |
116 | * Private IOCTL | |
117 | * VIDIOC_AM437X_CCDC_CFG - Set CCDC configuration for raw capture | |
118 | * This is an experimental ioctl that will change in future kernels. So use | |
119 | * this ioctl with care ! | |
120 | **/ | |
121 | #define VIDIOC_AM437X_CCDC_CFG \ | |
122 | _IOW('V', BASE_VIDIOC_PRIVATE + 1, void *) | |
123 | ||
124 | #endif /* AM437X_VPFE_USER_H */ |