1 /* Copyright (c) 2014, The Linux Foundation. All rights reserved.
2  *
3  * Redistribution and use in source and binary forms, with or without
4  * modification, are permitted provided that the following conditions are
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7  *       notice, this list of conditions and the following disclaimer.
8  *     * Redistributions in binary form must reproduce the above
9  *       copyright notice, this list of conditions and the following
10  *       disclaimer in the documentation and/or other materials provided
11  *       with the distribution.
12  *     * Neither the name of The Linux Foundation nor the names of its
13  *       contributors may be used to endorse or promote products derived
14  *       from this software without specific prior written permission.
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16  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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28  */
29 
30 #ifndef AUDIO_EXTN_PM_H
31 #define AUDIO_EXTN_PM_H
32 
33 #include <errno.h>
34 #include <math.h>
35 #include <pthread.h>
36 #include <stdlib.h>
37 #include <fcntl.h>
38 #include <pm-service.h>
39 #include "audio_hw.h"
40 #include <platform.h>
41 #include <cutils/properties.h>
42 #include <cutils/log.h>
43 
44 
45 /* Client name to be registered with PM */
46 #define PM_CLIENT_NAME "audio"
47 /* Command to sysfs to unload image */
48 #define UNLOAD_IMAGE "0"
49 #define MAX_NAME_LEN 32
50 #define BOOT_IMG_SYSFS_PATH "/sys/kernel/boot_adsp/boot"
51 
52 typedef struct {
53     //MAX_NAME_LEN defined in mdm_detect.h
54     char img_name[MAX_NAME_LEN];
55     //this handle is used by peripheral mgr
56     void *pm_handle;
57 }s_audio_subsys;
58 
59 /* Vote to peripheral manager for required subsystem */
60 int audio_extn_pm_vote (void);
61 
62 /* Unvote to peripheral manager */
63 void audio_extn_pm_unvote (void);
64 
65 /* Get subsytem status notification from PM */
66 void audio_extn_pm_event_notifier (void *client_data, enum pm_event event);
67 
68 #endif // AUDIO_EXTN_PM_H
69