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/******************************************************************************
*
* Copyright 2009-2012 Broadcom Corporation
*
* 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 BTIF_HH_H
#define BTIF_HH_H
#include <base/strings/stringprintf.h>
#include <hardware/bluetooth.h>
#include <hardware/bt_hh.h>
#include <pthread.h>
#include <stdint.h>
#include "bta/include/bta_hh_api.h"
#include "osi/include/alarm.h"
#include "osi/include/fixed_queue.h"
#include "types/raw_address.h"
/*******************************************************************************
* Constants & Macros
******************************************************************************/
#define BTIF_HH_MAX_HID 8
#define BTIF_HH_MAX_ADDED_DEV 32
#define BTIF_HH_MAX_KEYSTATES 3
#define BTIF_HH_KEYSTATE_MASK_NUMLOCK 0x01
#define BTIF_HH_KEYSTATE_MASK_CAPSLOCK 0x02
#define BTIF_HH_KEYSTATE_MASK_SCROLLLOCK 0x04
#define BTIF_HH_MAX_POLLING_ATTEMPTS 10
#define BTIF_HH_POLLING_SLEEP_DURATION_US 5000
/*******************************************************************************
* Type definitions and return values
******************************************************************************/
typedef enum : unsigned {
BTIF_HH_DISABLED = 0,
BTIF_HH_ENABLED,
BTIF_HH_DISABLING,
BTIF_HH_DEV_UNKNOWN,
BTIF_HH_DEV_CONNECTING,
BTIF_HH_DEV_CONNECTED,
BTIF_HH_DEV_DISCONNECTED
} BTIF_HH_STATUS;
#define CASE_RETURN_TEXT(code) \
case code: \
return #code
inline std::string btif_hh_status_text(const BTIF_HH_STATUS& status) {
switch (status) {
CASE_RETURN_TEXT(BTIF_HH_DISABLED);
CASE_RETURN_TEXT(BTIF_HH_ENABLED);
CASE_RETURN_TEXT(BTIF_HH_DISABLING);
CASE_RETURN_TEXT(BTIF_HH_DEV_UNKNOWN);
CASE_RETURN_TEXT(BTIF_HH_DEV_CONNECTING);
CASE_RETURN_TEXT(BTIF_HH_DEV_CONNECTED);
CASE_RETURN_TEXT(BTIF_HH_DEV_DISCONNECTED);
default:
return base::StringPrintf("UNKNOWN[%u]", status);
}
}
#undef CASE_RETURN_TEXT
// Shared with uhid polling thread
typedef struct {
bthh_connection_state_t dev_status;
uint8_t dev_handle;
RawAddress bd_addr;
bool le_hid;
tBTA_HH_ATTR_MASK attr_mask;
uint8_t sub_class;
uint8_t app_id;
int fd;
bool ready_for_data;
pthread_t hh_poll_thread_id;
pid_t pid{-1};
uint8_t hh_keep_polling;
alarm_t* vup_timer;
fixed_queue_t* get_rpt_id_queue;
#ifdef OS_ANDROID
fixed_queue_t* set_rpt_id_queue;
#endif // OS_ANDROID
uint8_t get_rpt_snt;
bool local_vup; // Indicated locally initiated VUP
} btif_hh_device_t;
/* Control block to maintain properties of devices */
typedef struct {
uint8_t dev_handle;
RawAddress bd_addr;
tBTA_HH_ATTR_MASK attr_mask;
} btif_hh_added_device_t;
/**
* BTIF-HH control block to maintain added devices and currently
* connected hid devices
*/
typedef struct {
BTIF_HH_STATUS status;
btif_hh_device_t devices[BTIF_HH_MAX_HID];
uint32_t device_num;
btif_hh_added_device_t added_devices[BTIF_HH_MAX_ADDED_DEV];
bool service_dereg_active;
RawAddress pending_conn_address;
} btif_hh_cb_t;
/*******************************************************************************
* Functions
******************************************************************************/
extern btif_hh_cb_t btif_hh_cb;
extern btif_hh_device_t* btif_hh_find_connected_dev_by_handle(uint8_t handle);
extern void btif_hh_remove_device(RawAddress bd_addr);
extern bool btif_hh_add_added_dev(const RawAddress& bda,
tBTA_HH_ATTR_MASK attr_mask);
extern bt_status_t btif_hh_virtual_unplug(const RawAddress* bd_addr);
extern void btif_hh_disconnect(RawAddress* bd_addr);
extern void btif_hh_setreport(btif_hh_device_t* p_dev,
bthh_report_type_t r_type, uint16_t size,
uint8_t* report);
extern void btif_hh_senddata(btif_hh_device_t* p_dev, uint16_t size,
uint8_t* report);
extern void btif_hh_getreport(btif_hh_device_t* p_dev,
bthh_report_type_t r_type, uint8_t reportId,
uint16_t bufferSize);
extern void btif_hh_service_registration(bool enable);
#endif
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