camera/QCamera2/util/QCameraCmdThread.h

/* Copyright (c) 2012, The Linux Foundataion. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
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 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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#ifndef __QCAMERA_CMD_THREAD_H__
#define __QCAMERA_CMD_THREAD_H__

#include <pthread.h>
#include <cam_semaphore.h>

#include "cam_types.h"
#include "QCameraQueue.h"

namespace qcamera {

typedef enum
{
    CAMERA_CMD_TYPE_NONE,
    CAMERA_CMD_TYPE_START_DATA_PROC,
    CAMERA_CMD_TYPE_STOP_DATA_PROC,
    CAMERA_CMD_TYPE_DO_NEXT_JOB,
    CAMERA_CMD_TYPE_EXIT,
    CAMERA_CMD_TYPE_MAX
} camera_cmd_type_t;

typedef struct {
    camera_cmd_type_t cmd;
} camera_cmd_t;

class QCameraCmdThread {
public:
    QCameraCmdThread();
    ~QCameraCmdThread();

    int32_t launch(void *(*start_routine)(void *), void* user_data);
    int32_t setName(const char* name);
    int32_t exit();
    int32_t sendCmd(camera_cmd_type_t cmd, uint8_t sync_cmd, uint8_t priority);
    camera_cmd_type_t getCmd();

    QCameraQueue cmd_queue;      /* cmd queue */
    pthread_t cmd_pid;           /* cmd thread ID */
    cam_semaphore_t cmd_sem;               /* semaphore for cmd thread */
    cam_semaphore_t sync_sem;              /* semaphore for synchronized call signal */
};

}; // namespace qcamera

#endif /* __QCAMERA_CMD_THREAD_H__ */