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/* Copyright (c) 2012-2017, 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 _MSM_H
#define _MSM_H
#include <linux/version.h>
#include <linux/completion.h>
#include <linux/i2c.h>
#include <linux/videodev2.h>
#include <linux/pm_qos.h>
#include <linux/msm_ion.h>
#include <linux/iommu.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-device.h>
#include <media/v4l2-fh.h>
#include <media/v4l2-event.h>
#include <media/v4l2-mediabus.h>
#include <media/videobuf2-dma-contig.h>
#include <media/ais/msm_ais.h>
/* Setting MAX timeout to 6.5seconds considering
* backend will operate @ .6fps in certain usecases
* like Long exposure usecase and isp needs max of 2 frames
* to stop the hardware which will be around 3 seconds
*/
#define MSM_POST_EVT_TIMEOUT 6500
#define MSM_POST_EVT_NOTIMEOUT 0xFFFFFFFF
#define MSM_CAMERA_STREAM_CNT_BITS 32
#define CAMERA_DISABLE_PC_LATENCY 100
#define CAMERA_ENABLE_PC_LATENCY PM_QOS_DEFAULT_VALUE
extern bool is_daemon_status;
struct msm_video_device {
struct video_device *vdev;
atomic_t opened;
struct mutex video_drvdata_mutex;
};
struct msm_queue_head {
struct list_head list;
spinlock_t lock;
int len;
int max;
};
/** msm_event:
*
* event sent by imaging server
**/
struct msm_event {
struct video_device *vdev;
atomic_t on_heap;
};
struct msm_command {
struct list_head list;
struct v4l2_event event;
atomic_t on_heap;
};
/** struct msm_command_ack
*
* Object of command_ack_q, which is
* created per open operation
*
* contains struct msm_command
**/
struct msm_command_ack {
struct list_head list;
struct msm_queue_head command_q;
struct completion wait_complete;
int stream_id;
};
struct msm_v4l2_subdev {
/* FIXME: for session close and error handling such
* as daemon shutdown
*/
int close_sequence;
};
struct msm_session {
struct list_head list;
/* session index */
unsigned int session_id;
/* event queue sent by imaging server */
struct msm_event event_q;
/* ACK by imaging server. Object type of
* struct msm_command_ack per open,
* assumption is application can send
* command on every opened video node
*/
struct msm_queue_head command_ack_q;
/* real streams(either data or metadate) owned by one
* session struct msm_stream
*/
struct msm_queue_head stream_q;
struct mutex lock;
struct mutex lock_q;
struct mutex close_lock;
rwlock_t stream_rwlock;
};
static inline bool msm_is_daemon_present(void)
{
return is_daemon_status;
}
void msm_pm_qos_update_request(int val);
int msm_post_event(struct v4l2_event *event, int timeout);
int msm_create_session(unsigned int session, struct video_device *vdev);
int msm_destroy_session(unsigned int session_id);
int msm_create_stream(unsigned int session_id,
unsigned int stream_id, struct vb2_queue *q);
void msm_delete_stream(unsigned int session_id, unsigned int stream_id);
int msm_create_command_ack_q(unsigned int session_id, unsigned int stream_id);
void msm_delete_command_ack_q(unsigned int session_id, unsigned int stream_id);
struct msm_session *msm_get_session(unsigned int session_id);
struct msm_stream *msm_get_stream(struct msm_session *session,
unsigned int stream_id);
struct vb2_queue *msm_get_stream_vb2q(unsigned int session_id,
unsigned int stream_id);
struct msm_stream *msm_get_stream_from_vb2q(struct vb2_queue *q);
struct msm_session *msm_get_session_from_vb2q(struct vb2_queue *q);
struct msm_session *msm_session_find(unsigned int session_id);
#ifdef CONFIG_COMPAT
long msm_copy_camera_private_ioctl_args(unsigned long arg,
struct msm_camera_private_ioctl_arg *k_ioctl,
void __user **tmp_compat_ioctl_ptr);
#endif
#endif /*_MSM_H */
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