Hiroh Satoh / keyboard Featured

ble nano hid over gatt

Dependencies:   BLE_API mbed-dev nRF51822

HIDController_BLE.cpp@13:b0ffdf2012b9, 2016-08-21 (annotated)

Committer:
cho45
Date:
Sun Aug 21 05:13:45 2016 +0000
Revision:
13:b0ffdf2012b9
Parent:
10:1aed2481a743
Child:
15:70bf079d3ee1
scan ??????????????????? waitForEvents ?????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cho45 6:f1c3ea8bc850 1 #include "mbed.h"
cho45 6:f1c3ea8bc850 2 #include "BLE.h"
cho45 6:f1c3ea8bc850 3 #include "KeyboardService.h"
cho45 6:f1c3ea8bc850 4 #include "BatteryService.h"
cho45 6:f1c3ea8bc850 5 #include "DeviceInformationService.h"
cho45 6:f1c3ea8bc850 6 #include "HIDController_BLE.h"
cho45 6:f1c3ea8bc850 7
cho45 6:f1c3ea8bc850 8 static const char MODEL_NAME[] = "keyboard";
cho45 6:f1c3ea8bc850 9 static const char SERIAL_NUMBER[] = "X00000";
cho45 6:f1c3ea8bc850 10 static const char HARDWARE_REVISION[] = "0.1";
cho45 6:f1c3ea8bc850 11 static const char FIRMWARE_REVISION[] = "0.1";
cho45 6:f1c3ea8bc850 12 static const char SOFTWARE_REVISION[] = "0.0";
cho45 6:f1c3ea8bc850 13
cho45 6:f1c3ea8bc850 14 static const uint8_t DEVICE_NAME[] = "my keyboard";
cho45 6:f1c3ea8bc850 15 static const uint8_t SHORT_DEVICE_NAME[] = "kbd1";
cho45 6:f1c3ea8bc850 16
cho45 6:f1c3ea8bc850 17 static const bool ENABLE_BONDING = true;
cho45 6:f1c3ea8bc850 18 static const bool REQUIRE_MITM = true;
cho45 6:f1c3ea8bc850 19 static const uint8_t PASSKEY[6] = {'1','2','3','4','5','6'}; // must be 6-digits number
cho45 6:f1c3ea8bc850 20
cho45 6:f1c3ea8bc850 21 static const uint16_t uuid16_list[] = {
cho45 6:f1c3ea8bc850 22 GattService::UUID_HUMAN_INTERFACE_DEVICE_SERVICE,
cho45 6:f1c3ea8bc850 23 GattService::UUID_DEVICE_INFORMATION_SERVICE,
cho45 6:f1c3ea8bc850 24 GattService::UUID_BATTERY_SERVICE
cho45 6:f1c3ea8bc850 25 };
cho45 6:f1c3ea8bc850 26
cho45 6:f1c3ea8bc850 27 static KeyboardService* keyboardService;
cho45 6:f1c3ea8bc850 28 static BatteryService* batteryService;
cho45 6:f1c3ea8bc850 29 static DeviceInformationService* deviceInformationService;
cho45 6:f1c3ea8bc850 30
cho45 13:b0ffdf2012b9 31 static BLEProtocol::Address_t peerAddress;
cho45 13:b0ffdf2012b9 32
cho45 6:f1c3ea8bc850 33 static void updateBatteryLevel() {
cho45 6:f1c3ea8bc850 34 if (!batteryService) return;
cho45 6:f1c3ea8bc850 35 static const float BATTERY_MAX = 2.4;
cho45 6:f1c3ea8bc850 36 static const float REFERNECE = 1.2;
cho45 6:f1c3ea8bc850 37 static const float PRESCALE = 3;
cho45 6:f1c3ea8bc850 38
cho45 6:f1c3ea8bc850 39 NRF_ADC->ENABLE = ADC_ENABLE_ENABLE_Enabled;
cho45 6:f1c3ea8bc850 40
cho45 6:f1c3ea8bc850 41 // Use internal 1.2V reference for batteryInput
cho45 6:f1c3ea8bc850 42 // 1/3 pre-scaled input and 1.2V internal band gap reference
cho45 6:f1c3ea8bc850 43 // ref. mbed-src/targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/analogin_api.c
cho45 6:f1c3ea8bc850 44 NRF_ADC->CONFIG =
cho45 6:f1c3ea8bc850 45 (ADC_CONFIG_RES_10bit << ADC_CONFIG_RES_Pos) |
cho45 6:f1c3ea8bc850 46 // Use VDD 1/3 for input
cho45 6:f1c3ea8bc850 47 (ADC_CONFIG_INPSEL_SupplyOneThirdPrescaling << ADC_CONFIG_INPSEL_Pos) |
cho45 6:f1c3ea8bc850 48 // Use internal band gap for reference
cho45 6:f1c3ea8bc850 49 (ADC_CONFIG_REFSEL_VBG << ADC_CONFIG_REFSEL_Pos) |
cho45 6:f1c3ea8bc850 50 (ADC_CONFIG_EXTREFSEL_None << ADC_CONFIG_EXTREFSEL_Pos);
cho45 6:f1c3ea8bc850 51
cho45 6:f1c3ea8bc850 52 // Start ADC
cho45 6:f1c3ea8bc850 53 NRF_ADC->TASKS_START = 1;
cho45 6:f1c3ea8bc850 54 while (((NRF_ADC->BUSY & ADC_BUSY_BUSY_Msk) >> ADC_BUSY_BUSY_Pos) == ADC_BUSY_BUSY_Busy) {
cho45 6:f1c3ea8bc850 55 // busy loop
cho45 6:f1c3ea8bc850 56 }
cho45 6:f1c3ea8bc850 57
cho45 6:f1c3ea8bc850 58 // Read ADC result
cho45 6:f1c3ea8bc850 59 uint16_t raw10bit = static_cast<uint16_t>(NRF_ADC->RESULT);
cho45 6:f1c3ea8bc850 60 float ratio = raw10bit / static_cast<float>(1<<10);
cho45 6:f1c3ea8bc850 61
cho45 6:f1c3ea8bc850 62 float batteryVoltage = ratio * (REFERNECE * PRESCALE);
cho45 6:f1c3ea8bc850 63 float percentage = (batteryVoltage / BATTERY_MAX) * 100;
cho45 6:f1c3ea8bc850 64 if (percentage > 100) {
cho45 6:f1c3ea8bc850 65 percentage = 100;
cho45 6:f1c3ea8bc850 66 }
cho45 6:f1c3ea8bc850 67 printf("updateBatteryLevel %f V : %d/100\r\n", batteryVoltage, static_cast<uint8_t>(percentage));
cho45 6:f1c3ea8bc850 68 batteryService->updateBatteryLevel(static_cast<uint8_t>(percentage));
cho45 6:f1c3ea8bc850 69 }
cho45 6:f1c3ea8bc850 70
cho45 6:f1c3ea8bc850 71
cho45 6:f1c3ea8bc850 72 static void onConnect(const Gap::ConnectionCallbackParams_t *params) {
cho45 6:f1c3ea8bc850 73 printf("onConnect\r\n");
cho45 13:b0ffdf2012b9 74 peerAddress.type = params->peerAddrType;
cho45 13:b0ffdf2012b9 75 memcpy(peerAddress.address, params->peerAddr, Gap::ADDR_LEN);
cho45 6:f1c3ea8bc850 76 }
cho45 6:f1c3ea8bc850 77
cho45 6:f1c3ea8bc850 78 static void onDisconnect(const Gap::DisconnectionCallbackParams_t *params) {
cho45 6:f1c3ea8bc850 79 printf("onDisconnect\r\n");
cho45 6:f1c3ea8bc850 80 BLE::Instance(BLE::DEFAULT_INSTANCE).gap().startAdvertising();
cho45 6:f1c3ea8bc850 81 }
cho45 6:f1c3ea8bc850 82
cho45 6:f1c3ea8bc850 83 static void onTimeout(const Gap::TimeoutSource_t source) {
cho45 6:f1c3ea8bc850 84 printf("onTimeout\r\n");
cho45 6:f1c3ea8bc850 85 BLE::Instance(BLE::DEFAULT_INSTANCE).gap().startAdvertising();
cho45 6:f1c3ea8bc850 86 }
cho45 6:f1c3ea8bc850 87
cho45 6:f1c3ea8bc850 88 static void passkeyDisplayCallback(Gap::Handle_t handle, const SecurityManager::Passkey_t passkey) {
cho45 6:f1c3ea8bc850 89 printf("Input passKey: ");
cho45 6:f1c3ea8bc850 90 for (unsigned i = 0; i < Gap::ADDR_LEN; i++) {
cho45 6:f1c3ea8bc850 91 printf("%c", passkey[i]);
cho45 6:f1c3ea8bc850 92 }
cho45 6:f1c3ea8bc850 93 printf("\r\n");
cho45 6:f1c3ea8bc850 94 }
cho45 6:f1c3ea8bc850 95
cho45 6:f1c3ea8bc850 96 static void securitySetupCompletedCallback(Gap::Handle_t handle, SecurityManager::SecurityCompletionStatus_t status) {
cho45 6:f1c3ea8bc850 97 if (status == SecurityManager::SEC_STATUS_SUCCESS) {
cho45 6:f1c3ea8bc850 98 printf("Security success %d\r\n", status);
cho45 13:b0ffdf2012b9 99
cho45 13:b0ffdf2012b9 100 printf("Set whitelist\r\n");
cho45 13:b0ffdf2012b9 101 Gap::Whitelist_t whitelist;
cho45 13:b0ffdf2012b9 102 whitelist.size = 1;
cho45 13:b0ffdf2012b9 103 whitelist.capacity = 1;
cho45 13:b0ffdf2012b9 104 whitelist.addresses = &peerAddress;
cho45 13:b0ffdf2012b9 105
cho45 13:b0ffdf2012b9 106 BLE::Instance(BLE::DEFAULT_INSTANCE).gap().setWhitelist(whitelist);
cho45 13:b0ffdf2012b9 107 printf("Set Advertising Policy Mode\r\n");
cho45 13:b0ffdf2012b9 108 // BLE::Instance(BLE::DEFAULT_INSTANCE).gap().setAdvertisingPolicyMode(Gap::ADV_POLICY_FILTER_SCAN_REQS);
cho45 13:b0ffdf2012b9 109 // BLE::Instance(BLE::DEFAULT_INSTANCE).gap().setAdvertisingPolicyMode(Gap::ADV_POLICY_FILTER_CONN_REQS);
cho45 13:b0ffdf2012b9 110 BLE::Instance(BLE::DEFAULT_INSTANCE).gap().setAdvertisingPolicyMode(Gap::ADV_POLICY_FILTER_ALL_REQS);
cho45 13:b0ffdf2012b9 111
cho45 6:f1c3ea8bc850 112 } else {
cho45 6:f1c3ea8bc850 113 printf("Security failed %d\r\n", status);
cho45 6:f1c3ea8bc850 114 }
cho45 6:f1c3ea8bc850 115 }
cho45 6:f1c3ea8bc850 116
cho45 6:f1c3ea8bc850 117 static void securitySetupInitiatedCallback(Gap::Handle_t, bool allowBonding, bool requireMITM, SecurityManager::SecurityIOCapabilities_t iocaps) {
cho45 6:f1c3ea8bc850 118 printf("Security setup initiated\r\n");
cho45 6:f1c3ea8bc850 119 }
cho45 6:f1c3ea8bc850 120
cho45 6:f1c3ea8bc850 121 static void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) {
cho45 6:f1c3ea8bc850 122 // https://developer.mbed.org/compiler/#nav:/keyboard/BLE_API/ble/blecommon.h;
cho45 6:f1c3ea8bc850 123 ble_error_t error;
cho45 6:f1c3ea8bc850 124 BLE &ble = params->ble;
cho45 6:f1c3ea8bc850 125
cho45 6:f1c3ea8bc850 126 error = params->error;
cho45 6:f1c3ea8bc850 127 if (error != BLE_ERROR_NONE) {
cho45 6:f1c3ea8bc850 128 printf("error on ble.init() \r\n");
cho45 6:f1c3ea8bc850 129 goto return_error;
cho45 6:f1c3ea8bc850 130 }
cho45 6:f1c3ea8bc850 131
cho45 6:f1c3ea8bc850 132 ble.gap().onDisconnection(onDisconnect);
cho45 6:f1c3ea8bc850 133 ble.gap().onConnection(onConnect);
cho45 6:f1c3ea8bc850 134 ble.gap().onTimeout(onTimeout);
cho45 6:f1c3ea8bc850 135
cho45 6:f1c3ea8bc850 136 printf("setup ble security manager\r\n");
cho45 6:f1c3ea8bc850 137 ble.securityManager().onSecuritySetupInitiated(securitySetupInitiatedCallback);
cho45 6:f1c3ea8bc850 138 ble.securityManager().onPasskeyDisplay(passkeyDisplayCallback);
cho45 6:f1c3ea8bc850 139 ble.securityManager().onSecuritySetupCompleted(securitySetupCompletedCallback);
cho45 6:f1c3ea8bc850 140 // bonding with hard-coded passkey.
cho45 6:f1c3ea8bc850 141 error = ble.securityManager().init(ENABLE_BONDING, REQUIRE_MITM, SecurityManager::IO_CAPS_DISPLAY_ONLY, PASSKEY);
cho45 6:f1c3ea8bc850 142 if (error != BLE_ERROR_NONE) {
cho45 6:f1c3ea8bc850 143 printf("error on ble.securityManager().init()");
cho45 6:f1c3ea8bc850 144 goto return_error;
cho45 6:f1c3ea8bc850 145 }
cho45 6:f1c3ea8bc850 146
cho45 6:f1c3ea8bc850 147 keyboardService = new KeyboardService(ble);
cho45 6:f1c3ea8bc850 148 deviceInformationService = new DeviceInformationService(ble, "lowreal.net", MODEL_NAME, SERIAL_NUMBER, HARDWARE_REVISION, FIRMWARE_REVISION, SOFTWARE_REVISION);
cho45 6:f1c3ea8bc850 149 batteryService = new BatteryService(ble, 100);
cho45 6:f1c3ea8bc850 150 updateBatteryLevel();
cho45 6:f1c3ea8bc850 151
cho45 6:f1c3ea8bc850 152 printf("general setup\r\n");
cho45 6:f1c3ea8bc850 153 error = ble.gap().accumulateAdvertisingPayload(
cho45 6:f1c3ea8bc850 154 GapAdvertisingData::BREDR_NOT_SUPPORTED |
cho45 6:f1c3ea8bc850 155 GapAdvertisingData::LE_GENERAL_DISCOVERABLE
cho45 6:f1c3ea8bc850 156 );
cho45 9:d1daefbf1fbd 157 // shoud be LE_LIMITED_DISCOVERABLE
cho45 9:d1daefbf1fbd 158 // error = ble.gap().accumulateAdvertisingPayload(
cho45 9:d1daefbf1fbd 159 // GapAdvertisingData::BREDR_NOT_SUPPORTED |
cho45 9:d1daefbf1fbd 160 // GapAdvertisingData::LE_LIMITED_DISCOVERABLE
cho45 9:d1daefbf1fbd 161 // );
cho45 6:f1c3ea8bc850 162 if (error != BLE_ERROR_NONE) goto return_error;
cho45 6:f1c3ea8bc850 163
cho45 6:f1c3ea8bc850 164 printf("set COMPLETE_LIST_16BIT_SERVICE_IDS\r\n");
cho45 6:f1c3ea8bc850 165 error = ble.gap().accumulateAdvertisingPayload(
cho45 6:f1c3ea8bc850 166 GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS,
cho45 6:f1c3ea8bc850 167 (uint8_t*)uuid16_list, sizeof(uuid16_list)
cho45 6:f1c3ea8bc850 168 );
cho45 6:f1c3ea8bc850 169 if (error != BLE_ERROR_NONE) goto return_error;
cho45 6:f1c3ea8bc850 170
cho45 6:f1c3ea8bc850 171 printf("set advertising\r\n");
cho45 6:f1c3ea8bc850 172 // see 5.1.2: HID over GATT Specification (pg. 25)
cho45 6:f1c3ea8bc850 173 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
cho45 6:f1c3ea8bc850 174
cho45 6:f1c3ea8bc850 175 printf("set advertising interval\r\n");
cho45 9:d1daefbf1fbd 176 ble.gap().setAdvertisingInterval(30);
cho45 9:d1daefbf1fbd 177 printf("set advertising timeout\r\n");
cho45 9:d1daefbf1fbd 178 ble.gap().setAdvertisingTimeout(180);
cho45 6:f1c3ea8bc850 179
cho45 6:f1c3ea8bc850 180 printf("set keyboard\r\n");
cho45 6:f1c3ea8bc850 181 error = ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::KEYBOARD);
cho45 6:f1c3ea8bc850 182 if (error != BLE_ERROR_NONE) goto return_error;
cho45 6:f1c3ea8bc850 183
cho45 6:f1c3ea8bc850 184 printf("set complete local name\r\n");
cho45 6:f1c3ea8bc850 185 error = ble.gap().accumulateAdvertisingPayload(
cho45 6:f1c3ea8bc850 186 GapAdvertisingData::COMPLETE_LOCAL_NAME,
cho45 6:f1c3ea8bc850 187 DEVICE_NAME, sizeof(DEVICE_NAME)
cho45 6:f1c3ea8bc850 188 );
cho45 6:f1c3ea8bc850 189 if (error != BLE_ERROR_NONE) goto return_error;
cho45 6:f1c3ea8bc850 190
cho45 6:f1c3ea8bc850 191 printf("set device name\r\n");
cho45 6:f1c3ea8bc850 192 error = ble.gap().setDeviceName(DEVICE_NAME);
cho45 6:f1c3ea8bc850 193 if (error != BLE_ERROR_NONE) goto return_error;
cho45 6:f1c3ea8bc850 194 // ble.gap().setTxPower(-12);
cho45 6:f1c3ea8bc850 195
cho45 6:f1c3ea8bc850 196
cho45 6:f1c3ea8bc850 197 printf("advertising\r\n");
cho45 6:f1c3ea8bc850 198 error = ble.gap().startAdvertising();
cho45 6:f1c3ea8bc850 199 if (error != BLE_ERROR_NONE) goto return_error;
cho45 6:f1c3ea8bc850 200 return;
cho45 6:f1c3ea8bc850 201
cho45 6:f1c3ea8bc850 202 return_error:
cho45 6:f1c3ea8bc850 203 printf("error with %d\r\n", error);
cho45 6:f1c3ea8bc850 204 return;
cho45 6:f1c3ea8bc850 205 }
cho45 6:f1c3ea8bc850 206
cho45 6:f1c3ea8bc850 207 void HIDController::init() {
cho45 6:f1c3ea8bc850 208 // https://github.com/jpbrucker/BLE_HID/blob/master/examples/examples_common.cpp
cho45 6:f1c3ea8bc850 209 printf("ble.init\r\n");
cho45 6:f1c3ea8bc850 210
cho45 6:f1c3ea8bc850 211 BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE);
cho45 6:f1c3ea8bc850 212 ble.init(bleInitComplete);
cho45 6:f1c3ea8bc850 213
cho45 6:f1c3ea8bc850 214 while (!ble.hasInitialized()) { }
cho45 6:f1c3ea8bc850 215
cho45 6:f1c3ea8bc850 216 printf("ble.hasIntialized\r\n");
cho45 6:f1c3ea8bc850 217 }
cho45 6:f1c3ea8bc850 218
cho45 10:1aed2481a743 219 void HIDController::waitForEvent() {
cho45 6:f1c3ea8bc850 220 BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE);
cho45 6:f1c3ea8bc850 221 ble.waitForEvent();
cho45 6:f1c3ea8bc850 222 }
cho45 6:f1c3ea8bc850 223
cho45 6:f1c3ea8bc850 224 void HIDController::appendReportData(uint8_t key) {
cho45 6:f1c3ea8bc850 225 if (keyboardService) {
cho45 6:f1c3ea8bc850 226 keyboardService->appendReportData(key);
cho45 6:f1c3ea8bc850 227 }
cho45 6:f1c3ea8bc850 228 }
cho45 6:f1c3ea8bc850 229
cho45 6:f1c3ea8bc850 230 void HIDController::deleteReportData(uint8_t key) {
cho45 6:f1c3ea8bc850 231 if (keyboardService) {
cho45 6:f1c3ea8bc850 232 keyboardService->deleteReportData(key);
cho45 6:f1c3ea8bc850 233 }
cho45 6:f1c3ea8bc850 234 }
cho45 9:d1daefbf1fbd 235
cho45 9:d1daefbf1fbd 236 void HIDController::queueCurrentReportData() {
cho45 9:d1daefbf1fbd 237 if (keyboardService) {
cho45 9:d1daefbf1fbd 238 keyboardService->queueCurrentReportData();
cho45 9:d1daefbf1fbd 239 }
cho45 9:d1daefbf1fbd 240 }