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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vpif_display.h (3733B)

      1/*
      2 * VPIF display header file
      3 *
      4 * Copyright (C) 2009 Texas Instruments Incorporated - https://www.ti.com/
      5 *
      6 * This program is free software; you can redistribute it and/or
      7 * modify it under the terms of the GNU General Public License as
      8 * published by the Free Software Foundation version 2.
      9 *
     10 * This program is distributed .as is. WITHOUT ANY WARRANTY of any
     11 * kind, whether express or implied; without even the implied warranty
     12 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13 * GNU General Public License for more details.
     14 */
     15
     16#ifndef VPIF_DISPLAY_H
     17#define VPIF_DISPLAY_H
     18
     19/* Header files */
     20#include <media/videobuf2-dma-contig.h>
     21#include <media/v4l2-device.h>
     22
     23#include "vpif.h"
     24
     25/* Macros */
     26#define VPIF_DISPLAY_VERSION	"0.0.2"
     27
     28#define VPIF_VALID_FIELD(field) \
     29	(((V4L2_FIELD_ANY == field) || (V4L2_FIELD_NONE == field)) || \
     30	(((V4L2_FIELD_INTERLACED == field) || (V4L2_FIELD_SEQ_TB == field)) || \
     31	(V4L2_FIELD_SEQ_BT == field)))
     32
     33#define VPIF_DISPLAY_MAX_DEVICES	(2)
     34#define VPIF_SLICED_BUF_SIZE		(256)
     35#define VPIF_SLICED_MAX_SERVICES	(3)
     36#define VPIF_VIDEO_INDEX		(0)
     37#define VPIF_VBI_INDEX			(1)
     38#define VPIF_HBI_INDEX			(2)
     39
     40/* Setting it to 1 as HBI/VBI support yet to be added , else 3*/
     41#define VPIF_NUMOBJECTS	(1)
     42
     43/* Macros */
     44#define ISALIGNED(a)    (0 == ((a) & 7))
     45
     46/* enumerated data types */
     47/* Enumerated data type to give id to each device per channel */
     48enum vpif_channel_id {
     49	VPIF_CHANNEL2_VIDEO = 0,	/* Channel2 Video */
     50	VPIF_CHANNEL3_VIDEO,		/* Channel3 Video */
     51};
     52
     53/* structures */
     54
     55struct video_obj {
     56	enum v4l2_field buf_field;
     57	u32 latest_only;		/* indicate whether to return
     58					 * most recent displayed frame only */
     59	v4l2_std_id stdid;		/* Currently selected or default
     60					 * standard */
     61	struct v4l2_dv_timings dv_timings;
     62};
     63
     64struct vpif_disp_buffer {
     65	struct vb2_v4l2_buffer vb;
     66	struct list_head list;
     67};
     68
     69struct common_obj {
     70	struct vpif_disp_buffer *cur_frm;	/* Pointer pointing to current
     71						 * vb2_buffer */
     72	struct vpif_disp_buffer *next_frm;	/* Pointer pointing to next
     73						 * vb2_buffer */
     74	struct v4l2_format fmt;			/* Used to store the format */
     75	struct vb2_queue buffer_queue;		/* Buffer queue used in
     76						 * video-buf */
     77
     78	struct list_head dma_queue;		/* Queue of filled frames */
     79	spinlock_t irqlock;			/* Used in video-buf */
     80
     81	/* channel specific parameters */
     82	struct mutex lock;			/* lock used to access this
     83						 * structure */
     84	u32 ytop_off;				/* offset of Y top from the
     85						 * starting of the buffer */
     86	u32 ybtm_off;				/* offset of Y bottom from the
     87						 * starting of the buffer */
     88	u32 ctop_off;				/* offset of C top from the
     89						 * starting of the buffer */
     90	u32 cbtm_off;				/* offset of C bottom from the
     91						 * starting of the buffer */
     92	/* Function pointer to set the addresses */
     93	void (*set_addr)(unsigned long, unsigned long,
     94				unsigned long, unsigned long);
     95	u32 height;
     96	u32 width;
     97};
     98
     99struct channel_obj {
    100	/* V4l2 specific parameters */
    101	struct video_device video_dev;	/* Identifies video device for
    102					 * this channel */
    103	u32 field_id;			/* Indicates id of the field
    104					 * which is being displayed */
    105	u8 initialized;			/* flag to indicate whether
    106					 * encoder is initialized */
    107	u32 output_idx;			/* Current output index */
    108	struct v4l2_subdev *sd;		/* Current output subdev(may be NULL) */
    109
    110	enum vpif_channel_id channel_id;/* Identifies channel */
    111	struct vpif_params vpifparams;
    112	struct common_obj common[VPIF_NUMOBJECTS];
    113	struct video_obj video;
    114};
    115
    116/* vpif device structure */
    117struct vpif_device {
    118	struct v4l2_device v4l2_dev;
    119	struct channel_obj *dev[VPIF_DISPLAY_NUM_CHANNELS];
    120	struct v4l2_subdev **sd;
    121	struct vpif_display_config *config;
    122};
    123
    124#endif				/* VPIF_DISPLAY_H */