| Christopher Ferris | 12e1f28 | 2016-02-04 12:35:07 -0800 | [diff] [blame] | 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 | |
| 24 | #include <linux/videodev2.h> |
| 25 | |
| 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 */ |