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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isppreview.h (4536B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * isppreview.h
      4 *
      5 * TI OMAP3 ISP - Preview module
      6 *
      7 * Copyright (C) 2010 Nokia Corporation
      8 * Copyright (C) 2009 Texas Instruments, Inc.
      9 *
     10 * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
     11 *	     Sakari Ailus <sakari.ailus@iki.fi>
     12 */
     13
     14#ifndef OMAP3_ISP_PREVIEW_H
     15#define OMAP3_ISP_PREVIEW_H
     16
     17#include <linux/omap3isp.h>
     18#include <linux/types.h>
     19#include <media/v4l2-ctrls.h>
     20
     21#include "ispvideo.h"
     22
     23#define ISPPRV_BRIGHT_STEP		0x1
     24#define ISPPRV_BRIGHT_DEF		0x0
     25#define ISPPRV_BRIGHT_LOW		0x0
     26#define ISPPRV_BRIGHT_HIGH		0xFF
     27#define ISPPRV_BRIGHT_UNITS		0x1
     28
     29#define ISPPRV_CONTRAST_STEP		0x1
     30#define ISPPRV_CONTRAST_DEF		0x10
     31#define ISPPRV_CONTRAST_LOW		0x0
     32#define ISPPRV_CONTRAST_HIGH		0xFF
     33#define ISPPRV_CONTRAST_UNITS		0x1
     34
     35/* Additional features not listed in linux/omap3isp.h */
     36#define OMAP3ISP_PREV_CONTRAST		(1 << 17)
     37#define OMAP3ISP_PREV_BRIGHTNESS	(1 << 18)
     38#define OMAP3ISP_PREV_FEATURES_END	(1 << 19)
     39
     40enum preview_input_entity {
     41	PREVIEW_INPUT_NONE,
     42	PREVIEW_INPUT_CCDC,
     43	PREVIEW_INPUT_MEMORY,
     44};
     45
     46#define PREVIEW_OUTPUT_RESIZER		(1 << 1)
     47#define PREVIEW_OUTPUT_MEMORY		(1 << 2)
     48
     49/* Configure byte layout of YUV image */
     50enum preview_ycpos_mode {
     51	YCPOS_YCrYCb = 0,
     52	YCPOS_YCbYCr = 1,
     53	YCPOS_CbYCrY = 2,
     54	YCPOS_CrYCbY = 3
     55};
     56
     57/*
     58 * struct prev_params - Structure for all configuration
     59 * @busy: Bitmask of busy parameters (being updated or used)
     60 * @update: Bitmask of the parameters to be updated
     61 * @features: Set of features enabled.
     62 * @cfa: CFA coefficients.
     63 * @csup: Chroma suppression coefficients.
     64 * @luma: Luma enhancement coefficients.
     65 * @nf: Noise filter coefficients.
     66 * @dcor: Noise filter coefficients.
     67 * @gamma: Gamma coefficients.
     68 * @wbal: White Balance parameters.
     69 * @blkadj: Black adjustment parameters.
     70 * @rgb2rgb: RGB blending parameters.
     71 * @csc: Color space conversion (RGB to YCbCr) parameters.
     72 * @hmed: Horizontal median filter.
     73 * @yclimit: YC limits parameters.
     74 * @contrast: Contrast.
     75 * @brightness: Brightness.
     76 */
     77struct prev_params {
     78	u32 busy;
     79	u32 update;
     80	u32 features;
     81	struct omap3isp_prev_cfa cfa;
     82	struct omap3isp_prev_csup csup;
     83	struct omap3isp_prev_luma luma;
     84	struct omap3isp_prev_nf nf;
     85	struct omap3isp_prev_dcor dcor;
     86	struct omap3isp_prev_gtables gamma;
     87	struct omap3isp_prev_wbal wbal;
     88	struct omap3isp_prev_blkadj blkadj;
     89	struct omap3isp_prev_rgbtorgb rgb2rgb;
     90	struct omap3isp_prev_csc csc;
     91	struct omap3isp_prev_hmed hmed;
     92	struct omap3isp_prev_yclimit yclimit;
     93	u8 contrast;
     94	u8 brightness;
     95};
     96
     97/* Sink and source previewer pads */
     98#define PREV_PAD_SINK			0
     99#define PREV_PAD_SOURCE			1
    100#define PREV_PADS_NUM			2
    101
    102/*
    103 * struct isp_prev_device - Structure for storing ISP Preview module information
    104 * @subdev: V4L2 subdevice
    105 * @pads: Media entity pads
    106 * @formats: Active formats at the subdev pad
    107 * @crop: Active crop rectangle
    108 * @input: Module currently connected to the input pad
    109 * @output: Bitmask of the active output
    110 * @video_in: Input video entity
    111 * @video_out: Output video entity
    112 * @params.params : Active and shadow parameters sets
    113 * @params.active: Bitmask of parameters active in set 0
    114 * @params.lock: Parameters lock, protects params.active and params.shadow
    115 * @underrun: Whether the preview entity has queued buffers on the output
    116 * @state: Current preview pipeline state
    117 *
    118 * This structure is used to store the OMAP ISP Preview module Information.
    119 */
    120struct isp_prev_device {
    121	struct v4l2_subdev subdev;
    122	struct media_pad pads[PREV_PADS_NUM];
    123	struct v4l2_mbus_framefmt formats[PREV_PADS_NUM];
    124	struct v4l2_rect crop;
    125
    126	struct v4l2_ctrl_handler ctrls;
    127
    128	enum preview_input_entity input;
    129	unsigned int output;
    130	struct isp_video video_in;
    131	struct isp_video video_out;
    132
    133	struct {
    134		unsigned int cfa_order;
    135		struct prev_params params[2];
    136		u32 active;
    137		spinlock_t lock;
    138	} params;
    139
    140	enum isp_pipeline_stream_state state;
    141	wait_queue_head_t wait;
    142	atomic_t stopping;
    143};
    144
    145struct isp_device;
    146
    147int omap3isp_preview_init(struct isp_device *isp);
    148void omap3isp_preview_cleanup(struct isp_device *isp);
    149
    150int omap3isp_preview_register_entities(struct isp_prev_device *prv,
    151				       struct v4l2_device *vdev);
    152void omap3isp_preview_unregister_entities(struct isp_prev_device *prv);
    153
    154void omap3isp_preview_isr_frame_sync(struct isp_prev_device *prev);
    155void omap3isp_preview_isr(struct isp_prev_device *prev);
    156
    157int omap3isp_preview_busy(struct isp_prev_device *isp_prev);
    158
    159void omap3isp_preview_restore_context(struct isp_device *isp);
    160
    161#endif	/* OMAP3_ISP_PREVIEW_H */