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/* 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 */