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am437x-vpfe.h
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * Copyright (C) 2013 - 2014 Texas Instruments, Inc. * * Benoit Parrot <bparrot@ti.com> * Lad, Prabhakar <prabhakar.csengg@gmail.com> * * This program is free software; you may redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef AM437X_VPFE_USER_H #define AM437X_VPFE_USER_H #include <linux/videodev2.h> enum vpfe_ccdc_data_size { VPFE_CCDC_DATA_16BITS = 0, VPFE_CCDC_DATA_15BITS, VPFE_CCDC_DATA_14BITS, VPFE_CCDC_DATA_13BITS, VPFE_CCDC_DATA_12BITS, VPFE_CCDC_DATA_11BITS, VPFE_CCDC_DATA_10BITS, VPFE_CCDC_DATA_8BITS, }; /* enum for No of pixel per line to be avg. in Black Clamping*/ enum vpfe_ccdc_sample_length { VPFE_CCDC_SAMPLE_1PIXELS = 0, VPFE_CCDC_SAMPLE_2PIXELS, VPFE_CCDC_SAMPLE_4PIXELS, VPFE_CCDC_SAMPLE_8PIXELS, VPFE_CCDC_SAMPLE_16PIXELS, }; /* enum for No of lines in Black Clamping */ enum vpfe_ccdc_sample_line { VPFE_CCDC_SAMPLE_1LINES = 0, VPFE_CCDC_SAMPLE_2LINES, VPFE_CCDC_SAMPLE_4LINES, VPFE_CCDC_SAMPLE_8LINES, VPFE_CCDC_SAMPLE_16LINES, }; /* enum for Alaw gamma width */ enum vpfe_ccdc_gamma_width { VPFE_CCDC_GAMMA_BITS_15_6 = 0, /* use bits 15-6 for gamma */ VPFE_CCDC_GAMMA_BITS_14_5, VPFE_CCDC_GAMMA_BITS_13_4, VPFE_CCDC_GAMMA_BITS_12_3, VPFE_CCDC_GAMMA_BITS_11_2, VPFE_CCDC_GAMMA_BITS_10_1, VPFE_CCDC_GAMMA_BITS_09_0, /* use bits 9-0 for gamma */ }; /* structure for ALaw */ struct vpfe_ccdc_a_law { /* Enable/disable A-Law */ unsigned char enable; /* Gamma Width Input */ enum vpfe_ccdc_gamma_width gamma_wd; }; /* structure for Black Clamping */ struct vpfe_ccdc_black_clamp { unsigned char enable; /* only if bClampEnable is TRUE */ enum vpfe_ccdc_sample_length sample_pixel; /* only if bClampEnable is TRUE */ enum vpfe_ccdc_sample_line sample_ln; /* only if bClampEnable is TRUE */ unsigned short start_pixel; /* only if bClampEnable is TRUE */ unsigned short sgain; /* only if bClampEnable is FALSE */ unsigned short dc_sub; }; /* structure for Black Level Compensation */ struct vpfe_ccdc_black_compensation { /* Constant value to subtract from Red component */ char r; /* Constant value to subtract from Gr component */ char gr; /* Constant value to subtract from Blue component */ char b; /* Constant value to subtract from Gb component */ char gb; }; /* Structure for CCDC configuration parameters for raw capture mode passed * by application */ struct vpfe_ccdc_config_params_raw { /* data size value from 8 to 16 bits */ enum vpfe_ccdc_data_size data_sz; /* Structure for Optional A-Law */ struct vpfe_ccdc_a_law alaw; /* Structure for Optical Black Clamp */ struct vpfe_ccdc_black_clamp blk_clamp; /* Structure for Black Compensation */ struct vpfe_ccdc_black_compensation blk_comp; }; /* * Private IOCTL * VIDIOC_AM437X_CCDC_CFG - Set CCDC configuration for raw capture * This is an experimental ioctl that will change in future kernels. So use * this ioctl with care ! **/ #define VIDIOC_AM437X_CCDC_CFG \ _IOW('V', BASE_VIDIOC_PRIVATE + 1, void *) #endif /* AM437X_VPFE_USER_H */