Yuuichi Akagawa / Mbed 2 deprecated BLENano_HID

BLE HID sample

Dependencies:   BLE_API BLE_HID mbed nRF51822

main.cpp@0:3435302551b3, 2016-02-27 (annotated)

Committer:
YuuichiAkagawa
Date:
Sat Feb 27 05:08:02 2016 +0000
Revision:
0:3435302551b3
initial commit

Who changed what in which revision?

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YuuichiAkagawa 0:3435302551b3 1 /* mbed Microcontroller Library
YuuichiAkagawa 0:3435302551b3 2 * Copyright (c) 2015 ARM Limited
YuuichiAkagawa 0:3435302551b3 3 *
YuuichiAkagawa 0:3435302551b3 4 * Licensed under the Apache License, Version 2.0 (the "License");
YuuichiAkagawa 0:3435302551b3 5 * you may not use this file except in compliance with the License.
YuuichiAkagawa 0:3435302551b3 6 * You may obtain a copy of the License at
YuuichiAkagawa 0:3435302551b3 7 *
YuuichiAkagawa 0:3435302551b3 8 * http://www.apache.org/licenses/LICENSE-2.0
YuuichiAkagawa 0:3435302551b3 9 *
YuuichiAkagawa 0:3435302551b3 10 * Unless required by applicable law or agreed to in writing, software
YuuichiAkagawa 0:3435302551b3 11 * distributed under the License is distributed on an "AS IS" BASIS,
YuuichiAkagawa 0:3435302551b3 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
YuuichiAkagawa 0:3435302551b3 13 * See the License for the specific language governing permissions and
YuuichiAkagawa 0:3435302551b3 14 * limitations under the License.
YuuichiAkagawa 0:3435302551b3 15 */
YuuichiAkagawa 0:3435302551b3 16
YuuichiAkagawa 0:3435302551b3 17 #include "mbed.h"
YuuichiAkagawa 0:3435302551b3 18
YuuichiAkagawa 0:3435302551b3 19 #include "ble/BLE.h"
YuuichiAkagawa 0:3435302551b3 20 #include "KeyboardService.h"
YuuichiAkagawa 0:3435302551b3 21
YuuichiAkagawa 0:3435302551b3 22 #include "examples_common.h"
YuuichiAkagawa 0:3435302551b3 23
YuuichiAkagawa 0:3435302551b3 24 /**
YuuichiAkagawa 0:3435302551b3 25 * This program implements a complete HID-over-Gatt Profile:
YuuichiAkagawa 0:3435302551b3 26 * - HID is provided by KeyboardService
YuuichiAkagawa 0:3435302551b3 27 * - Battery Service
YuuichiAkagawa 0:3435302551b3 28 * - Device Information Service
YuuichiAkagawa 0:3435302551b3 29 *
YuuichiAkagawa 0:3435302551b3 30 * Complete strings can be sent over BLE using printf. Please note, however, than a 12char string
YuuichiAkagawa 0:3435302551b3 31 * will take about 500ms to transmit, principally because of the limited notification rate in BLE.
YuuichiAkagawa 0:3435302551b3 32 * KeyboardService uses a circular buffer to store the strings to send, and calls to putc will fail
YuuichiAkagawa 0:3435302551b3 33 * once this buffer is full. This will result in partial strings being sent to the client.
YuuichiAkagawa 0:3435302551b3 34 */
YuuichiAkagawa 0:3435302551b3 35
YuuichiAkagawa 0:3435302551b3 36 DigitalOut waiting_led(LED1);
YuuichiAkagawa 0:3435302551b3 37 DigitalOut connected_led(LED2);
YuuichiAkagawa 0:3435302551b3 38
YuuichiAkagawa 0:3435302551b3 39 InterruptIn button1(D2);
YuuichiAkagawa 0:3435302551b3 40
YuuichiAkagawa 0:3435302551b3 41 BLE ble;
YuuichiAkagawa 0:3435302551b3 42 KeyboardService *kbdServicePtr;
YuuichiAkagawa 0:3435302551b3 43
YuuichiAkagawa 0:3435302551b3 44 static const char DEVICE_NAME[] = "uKbd";
YuuichiAkagawa 0:3435302551b3 45 static const char SHORT_DEVICE_NAME[] = "kbd1";
YuuichiAkagawa 0:3435302551b3 46
YuuichiAkagawa 0:3435302551b3 47 static void onDisconnect(const Gap::DisconnectionCallbackParams_t *params)
YuuichiAkagawa 0:3435302551b3 48 {
YuuichiAkagawa 0:3435302551b3 49 HID_DEBUG("disconnected\r\n");
YuuichiAkagawa 0:3435302551b3 50 connected_led = 0;
YuuichiAkagawa 0:3435302551b3 51
YuuichiAkagawa 0:3435302551b3 52 ble.gap().startAdvertising(); // restart advertising
YuuichiAkagawa 0:3435302551b3 53 }
YuuichiAkagawa 0:3435302551b3 54
YuuichiAkagawa 0:3435302551b3 55 static void onConnect(const Gap::ConnectionCallbackParams_t *params)
YuuichiAkagawa 0:3435302551b3 56 {
YuuichiAkagawa 0:3435302551b3 57 HID_DEBUG("connected\r\n");
YuuichiAkagawa 0:3435302551b3 58 waiting_led = false;
YuuichiAkagawa 0:3435302551b3 59 }
YuuichiAkagawa 0:3435302551b3 60
YuuichiAkagawa 0:3435302551b3 61 static void waiting() {
YuuichiAkagawa 0:3435302551b3 62 if (!kbdServicePtr->isConnected())
YuuichiAkagawa 0:3435302551b3 63 waiting_led = !waiting_led;
YuuichiAkagawa 0:3435302551b3 64 else
YuuichiAkagawa 0:3435302551b3 65 connected_led = !connected_led;
YuuichiAkagawa 0:3435302551b3 66 }
YuuichiAkagawa 0:3435302551b3 67
YuuichiAkagawa 0:3435302551b3 68 void send_string(const char * c) {
YuuichiAkagawa 0:3435302551b3 69 if (!kbdServicePtr)
YuuichiAkagawa 0:3435302551b3 70 return;
YuuichiAkagawa 0:3435302551b3 71
YuuichiAkagawa 0:3435302551b3 72 if (!kbdServicePtr->isConnected()) {
YuuichiAkagawa 0:3435302551b3 73 HID_DEBUG("we haven't connected yet...");
YuuichiAkagawa 0:3435302551b3 74 } else {
YuuichiAkagawa 0:3435302551b3 75 int len = strlen(c);
YuuichiAkagawa 0:3435302551b3 76 kbdServicePtr->printf(c);
YuuichiAkagawa 0:3435302551b3 77 HID_DEBUG("sending %d chars\r\n", len);
YuuichiAkagawa 0:3435302551b3 78 }
YuuichiAkagawa 0:3435302551b3 79 }
YuuichiAkagawa 0:3435302551b3 80
YuuichiAkagawa 0:3435302551b3 81 void send_stuff() {
YuuichiAkagawa 0:3435302551b3 82 send_string("hello world!\n");
YuuichiAkagawa 0:3435302551b3 83 }
YuuichiAkagawa 0:3435302551b3 84
YuuichiAkagawa 0:3435302551b3 85 int main()
YuuichiAkagawa 0:3435302551b3 86 {
YuuichiAkagawa 0:3435302551b3 87 Ticker heartbeat;
YuuichiAkagawa 0:3435302551b3 88
YuuichiAkagawa 0:3435302551b3 89 button1.rise(send_stuff);
YuuichiAkagawa 0:3435302551b3 90
YuuichiAkagawa 0:3435302551b3 91 HID_DEBUG("initialising ticker\r\n");
YuuichiAkagawa 0:3435302551b3 92
YuuichiAkagawa 0:3435302551b3 93 heartbeat.attach(waiting, 1);
YuuichiAkagawa 0:3435302551b3 94
YuuichiAkagawa 0:3435302551b3 95 HID_DEBUG("initialising ble\r\n");
YuuichiAkagawa 0:3435302551b3 96 ble.init();
YuuichiAkagawa 0:3435302551b3 97
YuuichiAkagawa 0:3435302551b3 98 ble.gap().onDisconnection(onDisconnect);
YuuichiAkagawa 0:3435302551b3 99 ble.gap().onConnection(onConnect);
YuuichiAkagawa 0:3435302551b3 100
YuuichiAkagawa 0:3435302551b3 101 initializeSecurity(ble);
YuuichiAkagawa 0:3435302551b3 102
YuuichiAkagawa 0:3435302551b3 103 HID_DEBUG("adding hid service\r\n");
YuuichiAkagawa 0:3435302551b3 104 KeyboardService kbdService(ble);
YuuichiAkagawa 0:3435302551b3 105 kbdServicePtr = &kbdService;
YuuichiAkagawa 0:3435302551b3 106
YuuichiAkagawa 0:3435302551b3 107 HID_DEBUG("adding device info and battery service\r\n");
YuuichiAkagawa 0:3435302551b3 108 initializeHOGP(ble);
YuuichiAkagawa 0:3435302551b3 109
YuuichiAkagawa 0:3435302551b3 110 HID_DEBUG("setting up gap\r\n");
YuuichiAkagawa 0:3435302551b3 111 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::KEYBOARD);
YuuichiAkagawa 0:3435302551b3 112 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME,
YuuichiAkagawa 0:3435302551b3 113 (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
YuuichiAkagawa 0:3435302551b3 114 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME,
YuuichiAkagawa 0:3435302551b3 115 (uint8_t *)SHORT_DEVICE_NAME, sizeof(SHORT_DEVICE_NAME));
YuuichiAkagawa 0:3435302551b3 116
YuuichiAkagawa 0:3435302551b3 117 HID_DEBUG("advertising\r\n");
YuuichiAkagawa 0:3435302551b3 118 ble.gap().startAdvertising();
YuuichiAkagawa 0:3435302551b3 119
YuuichiAkagawa 0:3435302551b3 120 while (true) {
YuuichiAkagawa 0:3435302551b3 121 ble.waitForEvent();
YuuichiAkagawa 0:3435302551b3 122 }
YuuichiAkagawa 0:3435302551b3 123 }