Sarah Marsh / Mbed OS mbed-os-example-ble-voice

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Fork of mbed-os-example-ble-LED by mbed-os-examples

source/main.cpp@24:0770ad9edb2d, 2017-04-03 (annotated)

Committer:
sarahmarshy
Date:
Mon Apr 03 18:44:40 2017 +0000
Revision:
24:0770ad9edb2d
Parent:
23:46aad4b5185f
Child:
25:b08a7d2c30b6
Add null terminator to the string received.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 2:864ddfb70a9c 1 /* mbed Microcontroller Library
mbed_official 2:864ddfb70a9c 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 2:864ddfb70a9c 3 *
mbed_official 2:864ddfb70a9c 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 2:864ddfb70a9c 5 * you may not use this file except in compliance with the License.
mbed_official 2:864ddfb70a9c 6 * You may obtain a copy of the License at
mbed_official 2:864ddfb70a9c 7 *
mbed_official 2:864ddfb70a9c 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 2:864ddfb70a9c 9 *
mbed_official 2:864ddfb70a9c 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 2:864ddfb70a9c 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 2:864ddfb70a9c 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 2:864ddfb70a9c 13 * See the License for the specific language governing permissions and
mbed_official 2:864ddfb70a9c 14 * limitations under the License.
mbed_official 2:864ddfb70a9c 15 */
mbed_official 2:864ddfb70a9c 16
mbed_official 11:7404978b24e7 17 #include <events/mbed_events.h>
mbed_official 2:864ddfb70a9c 18 #include <mbed.h>
mbed_official 2:864ddfb70a9c 19 #include "ble/BLE.h"
sarahmarshy 23:46aad4b5185f 20 #include "UARTService.h"
mbed_official 2:864ddfb70a9c 21
mbed_official 2:864ddfb70a9c 22 DigitalOut alivenessLED(LED1, 0);
mbed_official 2:864ddfb70a9c 23 DigitalOut actuatedLED(LED2, 0);
mbed_official 2:864ddfb70a9c 24
sarahmarshy 23:46aad4b5185f 25 DigitalOut light(D2);
sarahmarshy 23:46aad4b5185f 26
sarahmarshy 23:46aad4b5185f 27 const static char DEVICE_NAME[] = "mbedVoiceUART";
sarahmarshy 23:46aad4b5185f 28 static const uint16_t uuid16_list[] = {UARTServiceShortUUID};
mbed_official 2:864ddfb70a9c 29
mbed_official 2:864ddfb70a9c 30 static EventQueue eventQueue(
mbed_official 2:864ddfb70a9c 31 /* event count */ 10 * /* event size */ 32
mbed_official 2:864ddfb70a9c 32 );
mbed_official 2:864ddfb70a9c 33
sarahmarshy 23:46aad4b5185f 34 UARTService *UARTServicePtr;
mbed_official 2:864ddfb70a9c 35
mbed_official 2:864ddfb70a9c 36 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
mbed_official 2:864ddfb70a9c 37 {
mbed_official 2:864ddfb70a9c 38 (void) params;
mbed_official 2:864ddfb70a9c 39 BLE::Instance().gap().startAdvertising();
mbed_official 2:864ddfb70a9c 40 }
mbed_official 2:864ddfb70a9c 41
mbed_official 2:864ddfb70a9c 42 void blinkCallback(void)
mbed_official 2:864ddfb70a9c 43 {
mbed_official 2:864ddfb70a9c 44 alivenessLED = !alivenessLED; /* Do blinky on LED1 to indicate system aliveness. */
mbed_official 2:864ddfb70a9c 45 }
mbed_official 2:864ddfb70a9c 46
sarahmarshy 23:46aad4b5185f 47 void check_command(char* cmd){
sarahmarshy 23:46aad4b5185f 48 if(strstr(cmd, "panic")){
sarahmarshy 23:46aad4b5185f 49 light = 1;
sarahmarshy 23:46aad4b5185f 50 }
sarahmarshy 23:46aad4b5185f 51 else if(strstr(cmd, "chill")){
sarahmarshy 23:46aad4b5185f 52 light = 0;
sarahmarshy 23:46aad4b5185f 53 }
sarahmarshy 23:46aad4b5185f 54
sarahmarshy 23:46aad4b5185f 55 }
sarahmarshy 23:46aad4b5185f 56
mbed_official 2:864ddfb70a9c 57 /**
mbed_official 2:864ddfb70a9c 58 * This callback allows the LEDService to receive updates to the ledState Characteristic.
mbed_official 2:864ddfb70a9c 59 *
mbed_official 2:864ddfb70a9c 60 * @param[in] params
mbed_official 2:864ddfb70a9c 61 * Information about the characterisitc being updated.
mbed_official 2:864ddfb70a9c 62 */
mbed_official 2:864ddfb70a9c 63 void onDataWrittenCallback(const GattWriteCallbackParams *params) {
sarahmarshy 23:46aad4b5185f 64 char rcv[UARTServicePtr->BLE_UART_SERVICE_MAX_DATA_LEN];
sarahmarshy 23:46aad4b5185f 65 int c = UARTServicePtr->_getc();
sarahmarshy 23:46aad4b5185f 66 int i = 0;
sarahmarshy 23:46aad4b5185f 67 while (c != EOF){
sarahmarshy 23:46aad4b5185f 68 rcv[i++] = (char)c;
sarahmarshy 23:46aad4b5185f 69 c = UARTServicePtr->_getc();
mbed_official 2:864ddfb70a9c 70 }
sarahmarshy 24:0770ad9edb2d 71 rcv[UARTServicePtr->BLE_UART_SERVICE_MAX_DATA_LEN-1] = '\0';
sarahmarshy 23:46aad4b5185f 72 printf("%s\r\n", rcv);
sarahmarshy 23:46aad4b5185f 73 check_command(rcv);
mbed_official 2:864ddfb70a9c 74 }
mbed_official 2:864ddfb70a9c 75
mbed_official 2:864ddfb70a9c 76 /**
mbed_official 2:864ddfb70a9c 77 * This function is called when the ble initialization process has failled
mbed_official 2:864ddfb70a9c 78 */
mbed_official 2:864ddfb70a9c 79 void onBleInitError(BLE &ble, ble_error_t error)
mbed_official 2:864ddfb70a9c 80 {
mbed_official 2:864ddfb70a9c 81 /* Initialization error handling should go here */
mbed_official 2:864ddfb70a9c 82 }
mbed_official 2:864ddfb70a9c 83
mbed_official 2:864ddfb70a9c 84 /**
mbed_official 2:864ddfb70a9c 85 * Callback triggered when the ble initialization process has finished
mbed_official 2:864ddfb70a9c 86 */
mbed_official 2:864ddfb70a9c 87 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
mbed_official 2:864ddfb70a9c 88 {
mbed_official 2:864ddfb70a9c 89 BLE& ble = params->ble;
mbed_official 2:864ddfb70a9c 90 ble_error_t error = params->error;
mbed_official 2:864ddfb70a9c 91
mbed_official 2:864ddfb70a9c 92 if (error != BLE_ERROR_NONE) {
mbed_official 2:864ddfb70a9c 93 /* In case of error, forward the error handling to onBleInitError */
mbed_official 2:864ddfb70a9c 94 onBleInitError(ble, error);
mbed_official 2:864ddfb70a9c 95 return;
mbed_official 2:864ddfb70a9c 96 }
mbed_official 2:864ddfb70a9c 97
mbed_official 2:864ddfb70a9c 98 /* Ensure that it is the default instance of BLE */
mbed_official 2:864ddfb70a9c 99 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
mbed_official 2:864ddfb70a9c 100 return;
mbed_official 2:864ddfb70a9c 101 }
mbed_official 2:864ddfb70a9c 102
mbed_official 2:864ddfb70a9c 103 ble.gap().onDisconnection(disconnectionCallback);
mbed_official 2:864ddfb70a9c 104 ble.gattServer().onDataWritten(onDataWrittenCallback);
mbed_official 2:864ddfb70a9c 105
sarahmarshy 23:46aad4b5185f 106 UARTServicePtr = new UARTService(ble);
mbed_official 2:864ddfb70a9c 107
mbed_official 2:864ddfb70a9c 108 /* setup advertising */
mbed_official 2:864ddfb70a9c 109 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
mbed_official 2:864ddfb70a9c 110 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
mbed_official 2:864ddfb70a9c 111 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
mbed_official 2:864ddfb70a9c 112 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
sarahmarshy 23:46aad4b5185f 113 ble.gap().setAdvertisingInterval(160); /* 1000ms. */
mbed_official 2:864ddfb70a9c 114 ble.gap().startAdvertising();
mbed_official 2:864ddfb70a9c 115 }
mbed_official 2:864ddfb70a9c 116
mbed_official 2:864ddfb70a9c 117 void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) {
mbed_official 2:864ddfb70a9c 118 BLE &ble = BLE::Instance();
mbed_official 11:7404978b24e7 119 eventQueue.call(Callback<void()>(&ble, &BLE::processEvents));
mbed_official 2:864ddfb70a9c 120 }
mbed_official 2:864ddfb70a9c 121
mbed_official 2:864ddfb70a9c 122 int main()
mbed_official 2:864ddfb70a9c 123 {
sarahmarshy 23:46aad4b5185f 124 light = 0;
mbed_official 11:7404978b24e7 125 eventQueue.call_every(500, blinkCallback);
mbed_official 2:864ddfb70a9c 126
mbed_official 2:864ddfb70a9c 127 BLE &ble = BLE::Instance();
mbed_official 2:864ddfb70a9c 128 ble.onEventsToProcess(scheduleBleEventsProcessing);
mbed_official 2:864ddfb70a9c 129 ble.init(bleInitComplete);
mbed_official 2:864ddfb70a9c 130
mbed_official 11:7404978b24e7 131 eventQueue.dispatch_forever();
mbed_official 2:864ddfb70a9c 132
mbed_official 2:864ddfb70a9c 133 return 0;
mbed_official 2:864ddfb70a9c 134 }