1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_INCLUDE_BT_HD_H 18 #define ANDROID_INCLUDE_BT_HD_H 19 20 #include <stdint.h> 21 22 __BEGIN_DECLS 23 24 typedef enum { 25 BTHD_REPORT_TYPE_OTHER = 0, 26 BTHD_REPORT_TYPE_INPUT, 27 BTHD_REPORT_TYPE_OUTPUT, 28 BTHD_REPORT_TYPE_FEATURE, 29 // special value for reports to be sent on INTR(INPUT is assumed) 30 BTHD_REPORT_TYPE_INTRDATA 31 } bthd_report_type_t; 32 33 typedef enum { 34 BTHD_APP_STATE_NOT_REGISTERED, 35 BTHD_APP_STATE_REGISTERED 36 } bthd_application_state_t; 37 38 typedef enum { 39 BTHD_CONN_STATE_CONNECTED, 40 BTHD_CONN_STATE_CONNECTING, 41 BTHD_CONN_STATE_DISCONNECTED, 42 BTHD_CONN_STATE_DISCONNECTING, 43 BTHD_CONN_STATE_UNKNOWN 44 } bthd_connection_state_t; 45 46 typedef struct { 47 const char* name; 48 const char* description; 49 const char* provider; 50 uint8_t subclass; 51 uint8_t* desc_list; 52 int desc_list_len; 53 } bthd_app_param_t; 54 55 typedef struct { 56 uint8_t service_type; 57 uint32_t token_rate; 58 uint32_t token_bucket_size; 59 uint32_t peak_bandwidth; 60 uint32_t access_latency; 61 uint32_t delay_variation; 62 } bthd_qos_param_t; 63 64 typedef void (*bthd_application_state_callback)(RawAddress* bd_addr, 65 bthd_application_state_t state); 66 typedef void (*bthd_connection_state_callback)(RawAddress* bd_addr, 67 bthd_connection_state_t state); 68 typedef void (*bthd_get_report_callback)(uint8_t type, uint8_t id, 69 uint16_t buffer_size); 70 typedef void (*bthd_set_report_callback)(uint8_t type, uint8_t id, uint16_t len, 71 uint8_t* p_data); 72 typedef void (*bthd_set_protocol_callback)(uint8_t protocol); 73 typedef void (*bthd_intr_data_callback)(uint8_t report_id, uint16_t len, 74 uint8_t* p_data); 75 typedef void (*bthd_vc_unplug_callback)(void); 76 77 /** BT-HD callbacks */ 78 typedef struct { 79 size_t size; 80 81 bthd_application_state_callback application_state_cb; 82 bthd_connection_state_callback connection_state_cb; 83 bthd_get_report_callback get_report_cb; 84 bthd_set_report_callback set_report_cb; 85 bthd_set_protocol_callback set_protocol_cb; 86 bthd_intr_data_callback intr_data_cb; 87 bthd_vc_unplug_callback vc_unplug_cb; 88 } bthd_callbacks_t; 89 90 /** BT-HD interface */ 91 typedef struct { 92 size_t size; 93 94 /** init interface and register callbacks */ 95 bt_status_t (*init)(bthd_callbacks_t* callbacks); 96 97 /** close interface */ 98 void (*cleanup)(void); 99 100 /** register application */ 101 bt_status_t (*register_app)(bthd_app_param_t* app_param, 102 bthd_qos_param_t* in_qos, 103 bthd_qos_param_t* out_qos); 104 105 /** unregister application */ 106 bt_status_t (*unregister_app)(void); 107 108 /** connects to host with virtual cable */ 109 bt_status_t (*connect)(RawAddress* bd_addr); 110 111 /** disconnects from currently connected host */ 112 bt_status_t (*disconnect)(void); 113 114 /** send report */ 115 bt_status_t (*send_report)(bthd_report_type_t type, uint8_t id, uint16_t len, 116 uint8_t* p_data); 117 118 /** notifies error for invalid SET_REPORT */ 119 bt_status_t (*report_error)(uint8_t error); 120 121 /** send Virtual Cable Unplug */ 122 bt_status_t (*virtual_cable_unplug)(void); 123 124 } bthd_interface_t; 125 126 __END_DECLS 127 128 #endif /* ANDROID_INCLUDE_BT_HD_H */ 129
