128 lines
3.8 KiB
C
128 lines
3.8 KiB
C
/*
|
|
* VPIF display header file
|
|
*
|
|
* Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation version 2.
|
|
*
|
|
* This program is distributed .as is. WITHOUT ANY WARRANTY of any
|
|
* kind, whether express or implied; without even the implied warranty
|
|
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#ifndef VPIF_DISPLAY_H
|
|
#define VPIF_DISPLAY_H
|
|
|
|
/* Header files */
|
|
#include <media/videobuf2-dma-contig.h>
|
|
#include <media/v4l2-device.h>
|
|
|
|
#include "vpif.h"
|
|
|
|
/* Macros */
|
|
#define VPIF_DISPLAY_VERSION "0.0.2"
|
|
|
|
#define VPIF_VALID_FIELD(field) \
|
|
(((V4L2_FIELD_ANY == field) || (V4L2_FIELD_NONE == field)) || \
|
|
(((V4L2_FIELD_INTERLACED == field) || (V4L2_FIELD_SEQ_TB == field)) || \
|
|
(V4L2_FIELD_SEQ_BT == field)))
|
|
|
|
#define VPIF_DISPLAY_MAX_DEVICES (2)
|
|
#define VPIF_SLICED_BUF_SIZE (256)
|
|
#define VPIF_SLICED_MAX_SERVICES (3)
|
|
#define VPIF_VIDEO_INDEX (0)
|
|
#define VPIF_VBI_INDEX (1)
|
|
#define VPIF_HBI_INDEX (2)
|
|
|
|
/* Setting it to 1 as HBI/VBI support yet to be added , else 3*/
|
|
#define VPIF_NUMOBJECTS (1)
|
|
|
|
/* Macros */
|
|
#define ISALIGNED(a) (0 == ((a) & 7))
|
|
|
|
/* enumerated data types */
|
|
/* Enumerated data type to give id to each device per channel */
|
|
enum vpif_channel_id {
|
|
VPIF_CHANNEL2_VIDEO = 0, /* Channel2 Video */
|
|
VPIF_CHANNEL3_VIDEO, /* Channel3 Video */
|
|
};
|
|
|
|
/* structures */
|
|
|
|
struct video_obj {
|
|
enum v4l2_field buf_field;
|
|
u32 latest_only; /* indicate whether to return
|
|
* most recent displayed frame only */
|
|
v4l2_std_id stdid; /* Currently selected or default
|
|
* standard */
|
|
struct v4l2_dv_timings dv_timings;
|
|
};
|
|
|
|
struct vpif_disp_buffer {
|
|
struct vb2_buffer vb;
|
|
struct list_head list;
|
|
};
|
|
|
|
struct common_obj {
|
|
struct vpif_disp_buffer *cur_frm; /* Pointer pointing to current
|
|
* vb2_buffer */
|
|
struct vpif_disp_buffer *next_frm; /* Pointer pointing to next
|
|
* vb2_buffer */
|
|
struct v4l2_format fmt; /* Used to store the format */
|
|
struct vb2_queue buffer_queue; /* Buffer queue used in
|
|
* video-buf */
|
|
/* allocator-specific contexts for each plane */
|
|
struct vb2_alloc_ctx *alloc_ctx;
|
|
|
|
struct list_head dma_queue; /* Queue of filled frames */
|
|
spinlock_t irqlock; /* Used in video-buf */
|
|
|
|
/* channel specific parameters */
|
|
struct mutex lock; /* lock used to access this
|
|
* structure */
|
|
u32 ytop_off; /* offset of Y top from the
|
|
* starting of the buffer */
|
|
u32 ybtm_off; /* offset of Y bottom from the
|
|
* starting of the buffer */
|
|
u32 ctop_off; /* offset of C top from the
|
|
* starting of the buffer */
|
|
u32 cbtm_off; /* offset of C bottom from the
|
|
* starting of the buffer */
|
|
/* Function pointer to set the addresses */
|
|
void (*set_addr)(unsigned long, unsigned long,
|
|
unsigned long, unsigned long);
|
|
u32 height;
|
|
u32 width;
|
|
};
|
|
|
|
struct channel_obj {
|
|
/* V4l2 specific parameters */
|
|
struct video_device *video_dev; /* Identifies video device for
|
|
* this channel */
|
|
u32 field_id; /* Indicates id of the field
|
|
* which is being displayed */
|
|
u8 initialized; /* flag to indicate whether
|
|
* encoder is initialized */
|
|
u32 output_idx; /* Current output index */
|
|
struct v4l2_subdev *sd; /* Current output subdev(may be NULL) */
|
|
|
|
enum vpif_channel_id channel_id;/* Identifies channel */
|
|
struct vpif_params vpifparams;
|
|
struct common_obj common[VPIF_NUMOBJECTS];
|
|
struct video_obj video;
|
|
};
|
|
|
|
/* vpif device structure */
|
|
struct vpif_device {
|
|
struct v4l2_device v4l2_dev;
|
|
struct channel_obj *dev[VPIF_DISPLAY_NUM_CHANNELS];
|
|
struct v4l2_subdev **sd;
|
|
struct v4l2_async_notifier notifier;
|
|
struct vpif_display_config *config;
|
|
};
|
|
|
|
#endif /* VPIF_DISPLAY_H */
|