162 lines
4.6 KiB
C
162 lines
4.6 KiB
C
/*
|
|
* Copyright (C) 2009 Texas Instruments Inc
|
|
*
|
|
* 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; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef VPIF_CAPTURE_H
|
|
#define VPIF_CAPTURE_H
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
/* Header files */
|
|
#include <media/videobuf2-dma-contig.h>
|
|
#include <media/v4l2-device.h>
|
|
|
|
#include "vpif.h"
|
|
|
|
/* Macros */
|
|
#define VPIF_CAPTURE_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_CAPTURE_MAX_DEVICES 2
|
|
#define VPIF_VIDEO_INDEX 0
|
|
#define VPIF_NUMBER_OF_OBJECTS 1
|
|
|
|
/* Enumerated data type to give id to each device per channel */
|
|
enum vpif_channel_id {
|
|
VPIF_CHANNEL0_VIDEO = 0,
|
|
VPIF_CHANNEL1_VIDEO,
|
|
};
|
|
|
|
struct video_obj {
|
|
enum v4l2_field buf_field;
|
|
/* Currently selected or default standard */
|
|
v4l2_std_id stdid;
|
|
struct v4l2_dv_timings dv_timings;
|
|
};
|
|
|
|
struct vpif_cap_buffer {
|
|
struct vb2_buffer vb;
|
|
struct list_head list;
|
|
};
|
|
|
|
struct common_obj {
|
|
/* Pointer pointing to current v4l2_buffer */
|
|
struct vpif_cap_buffer *cur_frm;
|
|
/* Pointer pointing to current v4l2_buffer */
|
|
struct vpif_cap_buffer *next_frm;
|
|
/*
|
|
* This field keeps track of type of buffer exchange mechanism
|
|
* user has selected
|
|
*/
|
|
enum v4l2_memory memory;
|
|
/* Used to store pixel format */
|
|
struct v4l2_format fmt;
|
|
/* Buffer queue used in video-buf */
|
|
struct vb2_queue buffer_queue;
|
|
/* allocator-specific contexts for each plane */
|
|
struct vb2_alloc_ctx *alloc_ctx;
|
|
/* Queue of filled frames */
|
|
struct list_head dma_queue;
|
|
/* Used in video-buf */
|
|
spinlock_t irqlock;
|
|
/* lock used to access this structure */
|
|
struct mutex lock;
|
|
/* number of users performing IO */
|
|
u32 io_usrs;
|
|
/* Indicates whether streaming started */
|
|
u8 started;
|
|
/* Function pointer to set the addresses */
|
|
void (*set_addr) (unsigned long, unsigned long, unsigned long,
|
|
unsigned long);
|
|
/* offset where Y top starts from the starting of the buffer */
|
|
u32 ytop_off;
|
|
/* offset where Y bottom starts from the starting of the buffer */
|
|
u32 ybtm_off;
|
|
/* offset where C top starts from the starting of the buffer */
|
|
u32 ctop_off;
|
|
/* offset where C bottom starts from the starting of the buffer */
|
|
u32 cbtm_off;
|
|
/* Indicates width of the image data */
|
|
u32 width;
|
|
/* Indicates height of the image data */
|
|
u32 height;
|
|
};
|
|
|
|
struct channel_obj {
|
|
/* Identifies video device for this channel */
|
|
struct video_device *video_dev;
|
|
/* Used to keep track of state of the priority */
|
|
struct v4l2_prio_state prio;
|
|
/* number of open instances of the channel */
|
|
int usrs;
|
|
/* Indicates id of the field which is being displayed */
|
|
u32 field_id;
|
|
/* flag to indicate whether decoder is initialized */
|
|
u8 initialized;
|
|
/* Identifies channel */
|
|
enum vpif_channel_id channel_id;
|
|
/* Current input */
|
|
u32 input_idx;
|
|
/* subdev corresponding to the current input, may be NULL */
|
|
struct v4l2_subdev *sd;
|
|
/* vpif configuration params */
|
|
struct vpif_params vpifparams;
|
|
/* common object array */
|
|
struct common_obj common[VPIF_NUMBER_OF_OBJECTS];
|
|
/* video object */
|
|
struct video_obj video;
|
|
};
|
|
|
|
/* File handle structure */
|
|
struct vpif_fh {
|
|
/* pointer to channel object for opened device */
|
|
struct channel_obj *channel;
|
|
/* Indicates whether this file handle is doing IO */
|
|
u8 io_allowed[VPIF_NUMBER_OF_OBJECTS];
|
|
/* Used to keep track priority of this instance */
|
|
enum v4l2_priority prio;
|
|
/* Used to indicate channel is initialize or not */
|
|
u8 initialized;
|
|
};
|
|
|
|
struct vpif_device {
|
|
struct v4l2_device v4l2_dev;
|
|
struct channel_obj *dev[VPIF_CAPTURE_NUM_CHANNELS];
|
|
struct v4l2_subdev **sd;
|
|
struct v4l2_async_notifier notifier;
|
|
struct vpif_capture_config *config;
|
|
};
|
|
|
|
struct vpif_config_params {
|
|
u8 min_numbuffers;
|
|
u8 numbuffers[VPIF_CAPTURE_NUM_CHANNELS];
|
|
s8 device_type;
|
|
u32 min_bufsize[VPIF_CAPTURE_NUM_CHANNELS];
|
|
u32 channel_bufsize[VPIF_CAPTURE_NUM_CHANNELS];
|
|
u8 default_device[VPIF_CAPTURE_NUM_CHANNELS];
|
|
u32 video_limit[VPIF_CAPTURE_NUM_CHANNELS];
|
|
u8 max_device_type;
|
|
};
|
|
|
|
#endif /* End of __KERNEL__ */
|
|
#endif /* VPIF_CAPTURE_H */
|