101 lines
2.8 KiB
C
101 lines
2.8 KiB
C
|
/* Copyright (c) 2012, The Linux Foundation. All rights reserved.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 and
|
||
|
|
* only version 2 as published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _WFD_VSG_SUBDEV_
|
||
|
|
#define _WFD_VSG_SUBDEV_
|
||
|
|
|
||
|
|
#include <linux/videodev2.h>
|
||
|
|
#include <linux/list.h>
|
||
|
|
#include <linux/ktime.h>
|
||
|
|
#include <linux/workqueue.h>
|
||
|
|
#include <media/v4l2-subdev.h>
|
||
|
|
#include "mdp-subdev.h"
|
||
|
|
|
||
|
|
#define VSG_MAGIC_IOCTL 'V'
|
||
|
|
|
||
|
|
enum vsg_flags {
|
||
|
|
VSG_NEVER_RELEASE = 1<<0,
|
||
|
|
VSG_NEVER_SET_LAST_BUFFER = 1<<1,
|
||
|
|
VSG_BUF_BEING_ENCODED = 1<<2,
|
||
|
|
};
|
||
|
|
|
||
|
|
enum vsg_modes {
|
||
|
|
VSG_MODE_CFR,
|
||
|
|
VSG_MODE_VFR,
|
||
|
|
};
|
||
|
|
|
||
|
|
enum vsg_states {
|
||
|
|
VSG_STATE_NONE,
|
||
|
|
VSG_STATE_STARTED,
|
||
|
|
VSG_STATE_STOPPED,
|
||
|
|
VSG_STATE_ERROR
|
||
|
|
};
|
||
|
|
|
||
|
|
struct vsg_buf_info {
|
||
|
|
struct mdp_buf_info mdp_buf_info;
|
||
|
|
struct timespec time;
|
||
|
|
/* Internal */
|
||
|
|
struct list_head node;
|
||
|
|
uint32_t flags;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct vsg_msg_ops {
|
||
|
|
void *cbdata;
|
||
|
|
int (*encode_frame)(void *cbdata, struct vsg_buf_info *buffer);
|
||
|
|
int (*release_input_frame)(void *cbdata, struct vsg_buf_info *buffer);
|
||
|
|
};
|
||
|
|
|
||
|
|
struct vsg_context {
|
||
|
|
struct vsg_buf_info free_queue, busy_queue;
|
||
|
|
struct vsg_msg_ops vmops;
|
||
|
|
/* All time related values below in nanosecs */
|
||
|
|
int64_t frame_interval, max_frame_interval;
|
||
|
|
struct workqueue_struct *work_queue;
|
||
|
|
struct hrtimer threshold_timer;
|
||
|
|
struct mutex mutex;
|
||
|
|
struct vsg_buf_info *last_buffer;
|
||
|
|
int mode;
|
||
|
|
int state;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct vsg_work {
|
||
|
|
struct vsg_context *context;
|
||
|
|
struct work_struct work;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct vsg_encode_work {
|
||
|
|
struct vsg_buf_info *buf;
|
||
|
|
struct vsg_context *context;
|
||
|
|
struct work_struct work;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define VSG_OPEN _IO(VSG_MAGIC_IOCTL, 1)
|
||
|
|
#define VSG_CLOSE _IO(VSG_MAGIC_IOCTL, 2)
|
||
|
|
#define VSG_START _IO(VSG_MAGIC_IOCTL, 3)
|
||
|
|
#define VSG_STOP _IO(VSG_MAGIC_IOCTL, 4)
|
||
|
|
#define VSG_Q_BUFFER _IOW(VSG_MAGIC_IOCTL, 5, struct vsg_buf_info *)
|
||
|
|
#define VSG_DQ_BUFFER _IOR(VSG_MAGIC_IOCTL, 6, struct vsg_out_buf *)
|
||
|
|
#define VSG_RETURN_IP_BUFFER _IOW(VSG_MAGIC_IOCTL, 7, struct vsg_buf_info *)
|
||
|
|
#define VSG_ENCODE_DONE _IO(VSG_MAGIC_IOCTL, 8)
|
||
|
|
/* Time related arguments for frame interval ioctls are always in nanosecs*/
|
||
|
|
#define VSG_SET_FRAME_INTERVAL _IOW(VSG_MAGIC_IOCTL, 9, int64_t *)
|
||
|
|
#define VSG_GET_FRAME_INTERVAL _IOR(VSG_MAGIC_IOCTL, 10, int64_t *)
|
||
|
|
#define VSG_SET_MAX_FRAME_INTERVAL _IOW(VSG_MAGIC_IOCTL, 11, int64_t *)
|
||
|
|
#define VSG_GET_MAX_FRAME_INTERVAL _IOR(VSG_MAGIC_IOCTL, 12, int64_t *)
|
||
|
|
#define VSG_SET_MODE _IOW(VSG_MAGIC_IOCTL, 13, enum vsg_modes *)
|
||
|
|
|
||
|
|
extern int vsg_init(struct v4l2_subdev *sd, u32 val);
|
||
|
|
extern long vsg_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg);
|
||
|
|
|
||
|
|
#endif /* _WFD_VSG_SUBDEV_ */
|