The C and C++ Include Header Files

/usr/include/linux/am437x-vpfe.h


$ cat -n /usr/include/linux/am437x-vpfe.h

     1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
     2	/*
     3	 * Copyright (C) 2013 - 2014 Texas Instruments, Inc.
     4	 *
     5	 * Benoit Parrot <bparrot@ti.com>
     6	 * Lad, Prabhakar <prabhakar.csengg@gmail.com>
     7	 *
     8	 * This program is free software; you may redistribute it and/or modify
     9	 * it under the terms of the GNU General Public License as published by
    10	 * the Free Software Foundation; version 2 of the License.
    11	 *
    12	 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
    13	 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
    14	 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
    15	 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
    16	 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
    17	 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
    18	 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    19	 * SOFTWARE.
    20	 */
    21	
    22	#ifndef AM437X_VPFE_USER_H
    23	#define AM437X_VPFE_USER_H
    24	
    25	#include <linux/videodev2.h>
    26	
    27	enum vpfe_ccdc_data_size {
    28		VPFE_CCDC_DATA_16BITS = 0,
    29		VPFE_CCDC_DATA_15BITS,
    30		VPFE_CCDC_DATA_14BITS,
    31		VPFE_CCDC_DATA_13BITS,
    32		VPFE_CCDC_DATA_12BITS,
    33		VPFE_CCDC_DATA_11BITS,
    34		VPFE_CCDC_DATA_10BITS,
    35		VPFE_CCDC_DATA_8BITS,
    36	};
    37	
    38	/* enum for No of pixel per line to be avg. in Black Clamping*/
    39	enum vpfe_ccdc_sample_length {
    40		VPFE_CCDC_SAMPLE_1PIXELS = 0,
    41		VPFE_CCDC_SAMPLE_2PIXELS,
    42		VPFE_CCDC_SAMPLE_4PIXELS,
    43		VPFE_CCDC_SAMPLE_8PIXELS,
    44		VPFE_CCDC_SAMPLE_16PIXELS,
    45	};
    46	
    47	/* enum for No of lines in Black Clamping */
    48	enum vpfe_ccdc_sample_line {
    49		VPFE_CCDC_SAMPLE_1LINES = 0,
    50		VPFE_CCDC_SAMPLE_2LINES,
    51		VPFE_CCDC_SAMPLE_4LINES,
    52		VPFE_CCDC_SAMPLE_8LINES,
    53		VPFE_CCDC_SAMPLE_16LINES,
    54	};
    55	
    56	/* enum for Alaw gamma width */
    57	enum vpfe_ccdc_gamma_width {
    58		VPFE_CCDC_GAMMA_BITS_15_6 = 0,	/* use bits 15-6 for gamma */
    59		VPFE_CCDC_GAMMA_BITS_14_5,
    60		VPFE_CCDC_GAMMA_BITS_13_4,
    61		VPFE_CCDC_GAMMA_BITS_12_3,
    62		VPFE_CCDC_GAMMA_BITS_11_2,
    63		VPFE_CCDC_GAMMA_BITS_10_1,
    64		VPFE_CCDC_GAMMA_BITS_09_0,	/* use bits 9-0 for gamma */
    65	};
    66	
    67	/* structure for ALaw */
    68	struct vpfe_ccdc_a_law {
    69		/* Enable/disable A-Law */
    70		unsigned char enable;
    71		/* Gamma Width Input */
    72		enum vpfe_ccdc_gamma_width gamma_wd;
    73	};
    74	
    75	/* structure for Black Clamping */
    76	struct vpfe_ccdc_black_clamp {
    77		unsigned char enable;
    78		/* only if bClampEnable is TRUE */
    79		enum vpfe_ccdc_sample_length sample_pixel;
    80		/* only if bClampEnable is TRUE */
    81		enum vpfe_ccdc_sample_line sample_ln;
    82		/* only if bClampEnable is TRUE */
    83		unsigned short start_pixel;
    84		/* only if bClampEnable is TRUE */
    85		unsigned short sgain;
    86		/* only if bClampEnable is FALSE */
    87		unsigned short dc_sub;
    88	};
    89	
    90	/* structure for Black Level Compensation */
    91	struct vpfe_ccdc_black_compensation {
    92		/* Constant value to subtract from Red component */
    93		char r;
    94		/* Constant value to subtract from Gr component */
    95		char gr;
    96		/* Constant value to subtract from Blue component */
    97		char b;
    98		/* Constant value to subtract from Gb component */
    99		char gb;
   100	};
   101	
   102	/* Structure for CCDC configuration parameters for raw capture mode passed
   103	 * by application
   104	 */
   105	struct vpfe_ccdc_config_params_raw {
   106		/* data size value from 8 to 16 bits */
   107		enum vpfe_ccdc_data_size data_sz;
   108		/* Structure for Optional A-Law */
   109		struct vpfe_ccdc_a_law alaw;
   110		/* Structure for Optical Black Clamp */
   111		struct vpfe_ccdc_black_clamp blk_clamp;
   112		/* Structure for Black Compensation */
   113		struct vpfe_ccdc_black_compensation blk_comp;
   114	};
   115	
   116	/*
   117	 *  Private IOCTL
   118	 * VIDIOC_AM437X_CCDC_CFG - Set CCDC configuration for raw capture
   119	 * This is an experimental ioctl that will change in future kernels. So use
   120	 * this ioctl with care !
   121	 **/
   122	#define VIDIOC_AM437X_CCDC_CFG \
   123		_IOW('V', BASE_VIDIOC_PRIVATE + 1, void *)
   124	
   125	#endif		/* AM437X_VPFE_USER_H */