xref: /btstack/src/ble/gatt-service/hids_device.h (revision 6897da5c53aac5b1f90f41b5b15d0bd43d61dfff)
1 /*
2  * Copyright (C) 2014 BlueKitchen GmbH
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
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7  *
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9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
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15  *    from this software without specific prior written permission.
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20  * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
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37 
38 /**
39  * @title HID Service Server
40  *
41  */
42 
43 #ifndef HIDS_DEVICE_H
44 #define HIDS_DEVICE_H
45 
46 #include <stdint.h>
47 #include "btstack_defines.h"
48 #include "btstack_hid.h"
49 #include "bluetooth.h"
50 
51 #if defined __cplusplus
52 extern "C" {
53 #endif
54 
55 /* API_START */
56 
57 typedef struct {
58     uint16_t value_handle;
59     uint16_t client_configuration_handle;
60     uint16_t client_configuration_value;
61 
62     hid_report_type_t type;
63     uint8_t id;
64     uint8_t size;
65 } hids_device_report_t;
66 
67 /**
68  * @text Implementation of the GATT HIDS Device
69  * To use with your application, add '#import <hids.gatt>' to your .gatt file
70  */
71 
72 /**
73  * @brief Set up HIDS Device with single INPUT, OUTPUT and FEATURE report
74  */
75 void hids_device_init(uint8_t hid_country_code, const uint8_t * hid_descriptor, uint16_t hid_descriptor_size);
76 
77 /**
78  * @brief Set up HIDS Device for multiple instances of INPUT, OUTPUT and FEATURE reports
79  */
80 void hids_device_init_with_storage(uint8_t hid_country_code, const uint8_t * hid_descriptor, uint16_t hid_descriptor_size,
81     uint16_t num_reports, hids_device_report_t * report_storage);
82 
83 /**
84  * @brief Register callback for the HIDS Device client.
85  * @param callback
86  */
87 void hids_device_register_packet_handler(btstack_packet_handler_t callback);
88 
89 /**
90  * @brief Register report callback for Get Report operation
91  * @param callback
92  */
93 void hids_device_register_get_report_callback(void (*callback)(hci_con_handle_t con_handle, hid_report_type_t report_type, uint16_t report_id, uint16_t max_report_size, uint8_t * out_report));
94 
95 /**
96  * @brief Request can send now event to send HID Report
97  * Generates an HIDS_SUBEVENT_CAN_SEND_NOW subevent
98  * @param hid_cid
99  * @return ERROR_CODE_SUCCESS if ok, ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER if handle unknown, and ERROR_CODE_COMMAND_DISALLOWED if callback already registered
100  */
101 uint8_t hids_device_request_can_send_now_event(hci_con_handle_t con_handle);
102 
103 /**
104  * @brief Send HID Input Report for Report ID
105  * @param con_handle
106  * @param report_id
107  * @param report
108  * @param report_len
109  * @returns status
110  */
111 uint8_t hids_device_send_input_report_for_id(hci_con_handle_t con_handle, uint16_t report_id, const uint8_t * report, uint16_t report_len);
112 
113 /**
114  * @brief Send HID Input Report for first Input Report
115  * @param con_handle
116  * @param report
117  * @param report_len
118  * @returns status
119  */
120 uint8_t hids_device_send_input_report(hci_con_handle_t con_handle, const uint8_t * report, uint16_t report_len);
121 
122 /**
123  * @brief Send HID Boot Mouse Input Report
124  * @param con_handle
125  * @param report
126  * @param report_len
127  * @returns status
128  */
129 uint8_t hids_device_send_boot_mouse_input_report(hci_con_handle_t con_handle, const uint8_t * report, uint16_t report_len);
130 
131 /**
132  * @brief Send HID Boot Mouse Input Report
133  * @param con_handle
134  * @param report
135  * @param report_len
136  * @returns status
137  */
138 uint8_t hids_device_send_boot_keyboard_input_report(hci_con_handle_t con_handle, const uint8_t * report, uint16_t report_len);
139 
140 /* API_END */
141 
142 #if defined __cplusplus
143 }
144 #endif
145 
146 #endif
147