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129 lines
3.8 KiB
129 lines
3.8 KiB
7 months ago
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/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_INCLUDE_BT_HD_H
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#define ANDROID_INCLUDE_BT_HD_H
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#include <stdint.h>
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__BEGIN_DECLS
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typedef enum {
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BTHD_REPORT_TYPE_OTHER = 0,
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BTHD_REPORT_TYPE_INPUT,
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BTHD_REPORT_TYPE_OUTPUT,
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BTHD_REPORT_TYPE_FEATURE,
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// special value for reports to be sent on INTR(INPUT is assumed)
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BTHD_REPORT_TYPE_INTRDATA
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} bthd_report_type_t;
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typedef enum {
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BTHD_APP_STATE_NOT_REGISTERED,
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BTHD_APP_STATE_REGISTERED
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} bthd_application_state_t;
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typedef enum {
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BTHD_CONN_STATE_CONNECTED,
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BTHD_CONN_STATE_CONNECTING,
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BTHD_CONN_STATE_DISCONNECTED,
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BTHD_CONN_STATE_DISCONNECTING,
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BTHD_CONN_STATE_UNKNOWN
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} bthd_connection_state_t;
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typedef struct {
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const char* name;
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const char* description;
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const char* provider;
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uint8_t subclass;
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uint8_t* desc_list;
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int desc_list_len;
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} bthd_app_param_t;
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typedef struct {
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uint8_t service_type;
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uint32_t token_rate;
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uint32_t token_bucket_size;
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uint32_t peak_bandwidth;
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uint32_t access_latency;
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uint32_t delay_variation;
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} bthd_qos_param_t;
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typedef void (*bthd_application_state_callback)(RawAddress* bd_addr,
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bthd_application_state_t state);
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typedef void (*bthd_connection_state_callback)(RawAddress* bd_addr,
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bthd_connection_state_t state);
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typedef void (*bthd_get_report_callback)(uint8_t type, uint8_t id,
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uint16_t buffer_size);
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typedef void (*bthd_set_report_callback)(uint8_t type, uint8_t id, uint16_t len,
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uint8_t* p_data);
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typedef void (*bthd_set_protocol_callback)(uint8_t protocol);
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typedef void (*bthd_intr_data_callback)(uint8_t report_id, uint16_t len,
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uint8_t* p_data);
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typedef void (*bthd_vc_unplug_callback)(void);
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/** BT-HD callbacks */
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typedef struct {
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size_t size;
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bthd_application_state_callback application_state_cb;
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bthd_connection_state_callback connection_state_cb;
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bthd_get_report_callback get_report_cb;
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bthd_set_report_callback set_report_cb;
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bthd_set_protocol_callback set_protocol_cb;
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bthd_intr_data_callback intr_data_cb;
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bthd_vc_unplug_callback vc_unplug_cb;
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} bthd_callbacks_t;
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/** BT-HD interface */
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typedef struct {
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size_t size;
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/** init interface and register callbacks */
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bt_status_t (*init)(bthd_callbacks_t* callbacks);
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/** close interface */
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void (*cleanup)(void);
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/** register application */
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bt_status_t (*register_app)(bthd_app_param_t* app_param,
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bthd_qos_param_t* in_qos,
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bthd_qos_param_t* out_qos);
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/** unregister application */
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bt_status_t (*unregister_app)(void);
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/** connects to host with virtual cable */
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bt_status_t (*connect)(RawAddress* bd_addr);
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/** disconnects from currently connected host */
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bt_status_t (*disconnect)(void);
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/** send report */
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bt_status_t (*send_report)(bthd_report_type_t type, uint8_t id, uint16_t len,
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uint8_t* p_data);
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/** notifies error for invalid SET_REPORT */
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bt_status_t (*report_error)(uint8_t error);
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/** send Virtual Cable Unplug */
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bt_status_t (*virtual_cable_unplug)(void);
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} bthd_interface_t;
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__END_DECLS
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#endif /* ANDROID_INCLUDE_BT_HD_H */
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