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components/bt/host/bluedroid/btc/profile/std/include/btc_hh.h
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/******************************************************************************
*
* Copyright (C) 2016 The Android Open Source Project
* Copyright (C) 2009-2012 Broadcom Corporation
* Copyright (C) 2019 Blake Felt
*
* 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 BTC_HH_H
#define BTC_HH_H
#include <stdint.h>
#include "bta/bta_hh_api.h"
#include "btc/btc_task.h"
#include "osi/alarm.h"
#include "esp_hidh_api.h"
#define BTC_HH_MAX_HID 8
#define BTC_HH_MAX_ADDED_DEV 32
#define BTC_HH_MAX_KEYSTATES 3
#define BTC_HH_KEYSTATE_MASK_NUMLOCK 0x01
#define BTC_HH_KEYSTATE_MASK_CAPSLOCK 0x02
#define BTC_HH_KEYSTATE_MASK_SCROLLLOCK 0x04
#define BTC_HH_MAX_POLLING_ATTEMPTS 10
#define BTC_HH_POLLING_SLEEP_DURATION_US 5000
/*******************************************************************************
* Type definitions and return values
******************************************************************************/
typedef enum {
BTC_HH_INIT_EVT = 0,
BTC_HH_CONNECT_EVT,
BTC_HH_DISCONNECT_EVT,
BTC_HH_UNPLUG_EVT,
BTC_HH_SET_INFO_EVT,
BTC_HH_GET_PROTO_EVT,
BTC_HH_SET_PROTO_EVT,
BTC_HH_GET_IDLE_EVT,
BTC_HH_SET_IDLE_EVT,
BTC_HH_GET_REPORT_EVT,
BTC_HH_SET_REPORT_EVT,
BTC_HH_SEND_DATA_EVT,
BTC_HH_DEINIT_EVT,
} BTC_HH_EVT;
typedef enum {
BTC_HH_DISABLED = 0,
BTC_HH_ENABLED,
BTC_HH_DISABLING,
BTC_HH_DEV_UNKNOWN,
BTC_HH_DEV_CONNECTING,
BTC_HH_DEV_CONNECTED,
BTC_HH_DEV_DISCONNECTED
} BTC_HH_STATUS;
typedef struct {
esp_hidh_connection_state_t dev_status;
uint8_t dev_handle;
BD_ADDR bd_addr;
uint16_t attr_mask;
uint8_t sub_class;
uint8_t app_id;
bool ready_for_data;
osi_alarm_t *vup_timer;
bool local_vup; // Indicated locally initiated VUP
} btc_hh_device_t;
/* Control block to maintain properties of devices */
typedef struct {
uint8_t dev_handle;
BD_ADDR bd_addr;
uint16_t attr_mask;
} btc_hh_added_device_t;
/**
* BTC-HH control block to maintain added devices and currently
* connected hid devices
*/
typedef struct {
BTC_HH_STATUS status;
btc_hh_device_t devices[BTC_HH_MAX_HID];
uint32_t device_num;
BTC_HH_EVT add_event;
btc_hh_added_device_t added_devices[BTC_HH_MAX_ADDED_DEV];
btc_hh_device_t *p_curr_dev;
bool service_dereg_active;
BD_ADDR pending_conn_address;
} btc_hh_cb_t;
/* btc_spp_args_t */
typedef union {
// BTC_HH_CONNECT_EVT
struct hh_connect_arg {
BD_ADDR bd_addr;
} connect;
// BTC_HH_DISCONNECT_EVT
struct disconnect_arg {
BD_ADDR bd_addr;
} disconnect;
// BTC_HH_UNPLUG_EVT
struct unplug_arg {
BD_ADDR bd_addr;
} unplug;
// BTC_HH_SET_INFO_EVT
struct set_info_arg {
BD_ADDR bd_addr;
esp_hidh_hid_info_t *hid_info;
} set_info;
// BTC_HH_GET_PROTO_EVT
struct get_protocol_arg {
BD_ADDR bd_addr;
} get_protocol;
// BTC_HH_SET_PROTO_EVT
struct set_protocol_arg {
BD_ADDR bd_addr;
esp_hidh_protocol_mode_t protocol_mode;
} set_protocol;
// BTC_HH_GET_IDLE_EVT
struct get_idle_arg {
BD_ADDR bd_addr;
} get_idle;
// BTC_HH_SET_IDLE_EVT
struct set_idle_arg {
BD_ADDR bd_addr;
uint16_t idle_time;
} set_idle;
// BTC_HH_GET_REPORT_EVT
struct get_report_arg {
BD_ADDR bd_addr;
esp_hidh_report_type_t report_type;
uint8_t report_id;
int buffer_size;
} get_report;
// BTC_HH_SET_REPORT_EVT
struct set_report_arg {
BD_ADDR bd_addr;
esp_hidh_report_type_t report_type;
size_t len;
uint8_t *report;
} set_report;
// BTC_HH_SEND_DATA_EVT
struct send_data_arg {
BD_ADDR bd_addr;
size_t len;
uint8_t *data;
} send_data;
} btc_hidh_args_t;
/*******************************************************************************
* Variables
******************************************************************************/
extern btc_hh_cb_t btc_hh_cb;
/*******************************************************************************
* Functions
******************************************************************************/
void btc_hh_call_handler(btc_msg_t *msg);
void btc_hh_cb_handler(btc_msg_t *msg);
void btc_hh_arg_deep_copy(btc_msg_t *msg, void *p_dest, void *p_src);
void btc_hh_cb_arg_deep_free(btc_msg_t *msg);
bool btc_hh_add_added_dev(BD_ADDR bd_addr, uint16_t attr_mask);
#endif /* BTC_HH_H */
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