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hathachhathach
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adding hid central
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‎changelog.md

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# Adafruit nRF52 Arduino Core Changelog
22

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## 0.8.3
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- Enhance indicat API() to wait for confirm or timeout from peer.
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- Add BLEScanner filterService() for BLEService and BLEClientService
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## 0.8.2
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- Fixed burning bootloader issue with MacOS

‎libraries/Bluefruit52Lib/examples/Central/central_hid/central_hid.ino

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/*********************************************************************
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This is an example for our nRF52 based Bluefruit LE modules
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Pick one up today in the adafruit shop!
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Adafruit invests time and resources providing this open source code,
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please support Adafruit and open-source hardware by purchasing
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products from Adafruit!
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MIT license, check LICENSE for more information
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All text above, and the splash screen below must be included in
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any redistribution
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*********************************************************************/
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/*
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* This sketch demonstrate the central API(). A additional bluefruit
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* that has bleuart as peripheral is required for the demo.
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*/
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#include <bluefruit.h>
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BLEClientHidAdafruit hid;
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void setup()
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{
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Serial.begin(115200);
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Serial.println("Bluefruit52 Central HID (Keyboard + Mouse) Example");
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Serial.println("--------------------------------------------------\n");
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// Initialize Bluefruit with maximum connections as Peripheral = 0, Central = 1
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// SRAM usage required by SoftDevice will increase dramatically with number of connections
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Bluefruit.begin(0, 1);
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Bluefruit.setName("Bluefruit52 Central");
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// Init BLE Central Uart Serivce
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hid.begin();
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//clientUart.setRxCallback(bleuart_rx_callback);
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// Increase Blink rate to different from PrPh advertising mode
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Bluefruit.setConnLedInterval(250);
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// Callbacks for Central
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Bluefruit.Central.setConnectCallback(connect_callback);
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Bluefruit.Central.setDisconnectCallback(disconnect_callback);
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/* Start Central Scanning
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* - Enable auto scan if disconnected
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* - Interval = 100 ms, window = 80 ms
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* - Don't use active scan
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* - Start(timeout) with timeout = 0 will scan forever (until connected)
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*/
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Bluefruit.Scanner.setRxCallback(scan_callback);
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Bluefruit.Scanner.restartOnDisconnect(true);
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Bluefruit.Scanner.setInterval(160, 80); // in unit of 0.625 ms
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Bluefruit.Scanner.useActiveScan(false);
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Bluefruit.Scanner.start(0); // 0 = Don't stop scanning after n seconds
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Bluefruit.Scanner.filterService(hid); // only report HID service
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}
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/**
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* Callback invoked when scanner pick up an advertising data
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* @param report Structural advertising data
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*/
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void scan_callback(ble_gap_evt_adv_report_t* report)
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{
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// Connect to device
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Bluefruit.Central.connect(report);
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}
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/**
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* Callback invoked when an connection is established
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* @param conn_handle
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*/
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void connect_callback(uint16_t conn_handle)
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{
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Serial.println("Connected");
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Serial.print("Discovering HID Service ... ");
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if ( hid.discover(conn_handle) )
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{
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Serial.println("Found it");
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// Serial.println("Enable TXD's notify");
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// clientUart.enableTXD();
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Serial.println("Ready to receive from peripheral");
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}else
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{
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Serial.println("Found NONE");
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// disconect since we couldn't find bleuart service
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Bluefruit.Central.disconnect(conn_handle);
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}
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}
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/**
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* Callback invoked when a connection is dropped
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* @param conn_handle
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* @param reason
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*/
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void disconnect_callback(uint16_t conn_handle, uint8_t reason)
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{
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(void) conn_handle;
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(void) reason;
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Serial.println("Disconnected");
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}
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/**
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* Callback invoked when uart received data
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* @param uart_svc Reference object to the service where the data
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* arrived. In this example it is clientUart
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*/
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//void bleuart_rx_callback(BLEClientUart& uart_svc)
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//{
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// Serial.print("[RX]: ");
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//
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// while ( uart_svc.available() )
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// {
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// Serial.print( (char) uart_svc.read() );
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// }
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//
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// Serial.println();
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//}
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void loop()
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{
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// nothing to do
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if ( !hid.discovered() ) return;
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}
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‎libraries/Bluefruit52Lib/src/BLEDiscovery.h

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return discoverCharacteristic(conn_handle, chr_arr, arrcount(chr_arr));
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}
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uint8_t discoverCharacteristic(uint16_t conn_handle, BLEClientCharacteristic& chr1, BLEClientCharacteristic& chr2, BLEClientCharacteristic& chr3, BLEClientCharacteristic& chr4, BLEClientCharacteristic& chr5, BLEClientCharacteristic& chr6)
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{
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BLEClientCharacteristic* chr_arr[] = {&chr1, &chr2, &chr3, &chr4, &chr5, &chr6};
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return discoverCharacteristic(conn_handle, chr_arr, arrcount(chr_arr));
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}
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/*------------------------------------------------------------------*/
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/* INTERNAL USAGE ONLY
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* Although declare as public, it is meant to be invoked by internal

‎libraries/Bluefruit52Lib/src/BLEScanner.cpp

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for(uint8_t i=0; i<count; i++) _filter_uuid[i] = ble_uuid[i];
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}
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void BLEScanner::filterService(BLEService& svc)
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{
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filterUuid(svc.uuid);
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}
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void BLEScanner::filterService(BLEClientService& cli)
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{
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filterUuid(cli.uuid);
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}
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void BLEScanner::filterMSD(uint16_t manuf_id)
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{
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_filter_msd_en = true;

‎libraries/Bluefruit52Lib/src/BLEScanner.h

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void filterUuid(BLEUuid ble_uuid1, BLEUuid ble_uuid2, BLEUuid ble_uuid3, BLEUuid ble_uuid4);
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void filterUuid(BLEUuid ble_uuid[], uint8_t count);
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void filterService(BLEService& svc);
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void filterService(BLEClientService& cli);
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void clearFilters(void);
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bool start(uint16_t timeout = 0);

‎libraries/Bluefruit52Lib/src/bluefruit.h

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#include "clients/BLEClientUart.h"
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#include "clients/BLEClientDis.h"
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#include "clients/BLEClientCts.h"
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#include "clients/BLEClientHidAdafruit.h"
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#include "utility/AdaCallback.h"
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‎libraries/Bluefruit52Lib/src/clients/BLEClientHidAdafruit.cpp

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/**************************************************************************/
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/*!
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@file BLEClientHidAdafruit.cpp
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@author hathach (tinyusb.org)
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@section LICENSE
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Software License Agreement (BSD License)
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Copyright (c) 2018, Adafruit Industries (adafruit.com)
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
18+
notice, this list of conditions and the following disclaimer in the
19+
documentation and/or other materials provided with the distribution.
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3. Neither the name of the copyright holders nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
26+
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30+
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**************************************************************************/
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#include "bluefruit.h"
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void kbd_client_notify_cb(BLEClientCharacteristic* chr, uint8_t* data, uint16_t len)
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{
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}
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void mouse_client_notify_cb(BLEClientCharacteristic* chr, uint8_t* data, uint16_t len)
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{
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}
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BLEClientHidAdafruit::BLEClientHidAdafruit(void)
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: BLEClientService(UUID16_SVC_HUMAN_INTERFACE_DEVICE),
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_protcol_mode(UUID16_CHR_PROTOCOL_MODE),
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_kbd_boot_input(UUID16_CHR_BOOT_KEYBOARD_INPUT_REPORT), _kbd_boot_output(UUID16_CHR_BOOT_KEYBOARD_OUTPUT_REPORT),
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_mouse_boot_input(UUID16_CHR_BOOT_MOUSE_INPUT_REPORT),
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_hid_info(UUID16_CHR_HID_INFORMATION), _hid_control(UUID16_CHR_HID_CONTROL_POINT)
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{
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_country = 0;
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}
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bool BLEClientHidAdafruit::begin(void)
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{
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// Invoke base class begin()
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BLEClientService::begin();
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_kbd_boot_input.begin(this);
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_kbd_boot_output.begin(this);
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_mouse_boot_input.begin(this);
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// set notify callback
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_kbd_boot_input.setNotifyCallback(kbd_client_notify_cb);
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_mouse_boot_input.setNotifyCallback(mouse_client_notify_cb);
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}
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bool BLEClientHidAdafruit::discover(uint16_t conn_handle)
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{
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// Call Base class discover
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VERIFY( BLEClientService::discover(conn_handle) );
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_conn_hdl = BLE_CONN_HANDLE_INVALID; // make as invalid until we found all chars
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// Discover all characteristics
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Bluefruit.Discovery.discoverCharacteristic(conn_handle, _protcol_mode, _kbd_boot_input, _kbd_boot_output, _mouse_boot_input, _hid_info, _hid_control);
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VERIFY( _protcol_mode.discovered() && _hid_info.discovered() && _hid_control.discovered() );
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VERIFY ( keyboardPresent() || mousePresent() );
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_conn_hdl = conn_handle;
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return true;
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}
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bool BLEClientHidAdafruit::keyboardPresent(void)
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{
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return _kbd_boot_input.discovered() && _kbd_boot_output.discovered();
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}
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bool BLEClientHidAdafruit::mousePresent(void)
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{
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return _mouse_boot_input.discovered();
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}
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bool BLEClientHidAdafruit::enableKeyboard(void)
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{
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_kbd_boot_input.enableNotify();
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}
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bool BLEClientHidAdafruit::enableMouse(void)
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{
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_mouse_boot_input.enableNotify();
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}
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bool BLEClientHidAdafruit::disableKeyboard(void)
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{
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_kbd_boot_input.disableNotify();
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}
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bool BLEClientHidAdafruit::disableMouse(void)
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{
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_mouse_boot_input.disableNotify();
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}

‎libraries/Bluefruit52Lib/src/clients/BLEClientHidAdafruit.h

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/**************************************************************************/
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/*!
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@file BLEClientHidAdafruit.h
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@author hathach (tinyusb.org)
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@section LICENSE
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Software License Agreement (BSD License)
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Copyright (c) 2018, Adafruit Industries (adafruit.com)
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All rights reserved.
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13+
Redistribution and use in source and binary forms, with or without
14+
modification, are permitted provided that the following conditions are met:
15+
1. Redistributions of source code must retain the above copyright
16+
notice, this list of conditions and the following disclaimer.
17+
2. Redistributions in binary form must reproduce the above copyright
18+
notice, this list of conditions and the following disclaimer in the
19+
documentation and/or other materials provided with the distribution.
20+
3. Neither the name of the copyright holders nor the
21+
names of its contributors may be used to endorse or promote products
22+
derived from this software without specific prior written permission.
23+
24+
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
25+
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
26+
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
27+
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
28+
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
29+
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
30+
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
31+
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32+
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33+
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**************************************************************************/
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#ifndef BLECLIENTHIDADAFRUIT_H_
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#define BLECLIENTHIDADAFRUIT_H_
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#include "bluefruit_common.h"
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#include "BLEClientCharacteristic.h"
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#include "BLEClientService.h"
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#include "services/BLEHidGeneric.h"
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// Only support Boot Keyboard and/or Boot Mouse, there is no Consumer Control support
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class BLEClientHidAdafruit : public BLEClientService
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{
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public:
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BLEClientHidAdafruit(void);
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virtual bool begin(void);
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virtual bool discover(uint16_t conn_handle);
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bool keyboardPresent(void);
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bool mousePresent(void);
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bool enableKeyboard(void);
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bool disableKeyboard(void);
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bool enableMouse(void);
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bool disableMouse(void);
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private:
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uint8_t _country;
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// Only support Boot protocol for keyboard and Mouse
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BLEClientCharacteristic _protcol_mode;
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BLEClientCharacteristic _hid_info;
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BLEClientCharacteristic _hid_control;
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BLEClientCharacteristic _kbd_boot_input;
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BLEClientCharacteristic _kbd_boot_output;
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BLEClientCharacteristic _mouse_boot_input;
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};
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#endif /* BLECLIENTHIDADAFRUIT_H_ */

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