hal/audio_extn/pm.h

/* Copyright (c) 2014, The Linux Foundation. All rights reserved.
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#ifndef AUDIO_EXTN_PM_H
#define AUDIO_EXTN_PM_H

#include <errno.h>
#include <math.h>
#include <pthread.h>
#include <stdlib.h>
#include <fcntl.h>
#include <pm-service.h>
#include "audio_hw.h"
#include <platform.h>
#include <cutils/properties.h>
#include <cutils/log.h>


/* Client name to be registered with PM */
#define PM_CLIENT_NAME "audio"
/* Command to sysfs to unload image */
#define UNLOAD_IMAGE "0"
#define MAX_NAME_LEN 32
#define BOOT_IMG_SYSFS_PATH "/sys/kernel/boot_adsp/boot"

typedef struct {
    //MAX_NAME_LEN defined in mdm_detect.h
    char img_name[MAX_NAME_LEN];
    //this handle is used by peripheral mgr
    void *pm_handle;
}s_audio_subsys;

/* Vote to peripheral manager for required subsystem */
int audio_extn_pm_vote (void);

/* Unvote to peripheral manager */
void audio_extn_pm_unvote (void);

/* Get subsytem status notification from PM */
void audio_extn_pm_event_notifier (void *client_data, enum pm_event event);

#endif // AUDIO_EXTN_PM_H