cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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am437x-vpfe.h (3681B)

      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
     27enum 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*/
     39enum 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 */
     48enum 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 */
     57enum 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 */
     68struct 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 */
     76struct 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 */
     91struct 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 */
    105struct 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 */