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