xref: /btstack/src/ble/gatt-service/battery_service_server.h (revision 2fca4dad957cd7b88f4657ed51e89c12615dda72)
1 /*
2  * Copyright (C) 2014 BlueKitchen GmbH
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37 
38 /**
39  * @title Battery Service Server
40  *
41  */
42 
43 #ifndef BATTERY_SERVICE_SERVER_H
44 #define BATTERY_SERVICE_SERVER_H
45 
46 #include <stdint.h>
47 
48 #if defined __cplusplus
49 extern "C" {
50 #endif
51 
52 /**
53  * @text The Battery Service allows to query your device's battery level in a standardized way.
54  *
55  * To use with your application, add `#import <battery_service.gatt>` to your .gatt file.
56  * After adding it to your .gatt file, you call *battery_service_server_init(value)* with the
57  * current value of your battery. The valid range for the battery level is 0-100.
58  *
59  * If the battery level changes, you can call *battery_service_server_set_battery_value(value)*.
60  * The service supports sending Notifications if the client enables them.
61  */
62 
63 /* API_START */
64 
65 /**
66  * @brief Init Battery Service Server with ATT DB
67  * @param battery_value in range 0-100
68  */
69 void battery_service_server_init(uint8_t battery_value);
70 
71 /**
72  * @brief Update battery value
73  * @note triggers notifications if subscribed
74  * @param battery_value in range 0-100
75  */
76 void battery_service_server_set_battery_value(uint8_t battery_value);
77 
78 /* API_END */
79 
80 #if defined __cplusplus
81 }
82 #endif
83 
84 #endif
85 
86