Bill Schilit / BLE_API

Improve readability with getHandle inline

Fork of BLE_API by Bluetooth Low Energy

services/URIBeacon2Service.h@205:c957765916e2, 2014-12-01 (annotated)

Committer:
rgrover1
Date:
Mon Dec 01 14:31:17 2014 +0000
Revision:
205:c957765916e2
Parent:
204:479f81fd5d3b
Child:
206:49646c933822
Synchronized with git rev da859491

Author: Rohit Grover

add saveDefaults()

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 171:6092e61690dc 1 /* mbed Microcontroller Library
rgrover1 171:6092e61690dc 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 171:6092e61690dc 3 *
rgrover1 171:6092e61690dc 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 171:6092e61690dc 5 * you may not use this file except in compliance with the License.
rgrover1 171:6092e61690dc 6 * You may obtain a copy of the License at
rgrover1 171:6092e61690dc 7 *
rgrover1 171:6092e61690dc 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 171:6092e61690dc 9 *
rgrover1 171:6092e61690dc 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 171:6092e61690dc 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 171:6092e61690dc 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 171:6092e61690dc 13 * See the License for the specific language governing permissions and
rgrover1 171:6092e61690dc 14 * limitations under the License.
rgrover1 171:6092e61690dc 15 */
rgrover1 171:6092e61690dc 16
rgrover1 171:6092e61690dc 17 #ifndef __BLE_URI_BEACON_2_SERVICE_H__
rgrover1 171:6092e61690dc 18 #define __BLE_URI_BEACON_2_SERVICE_H__
rgrover1 171:6092e61690dc 19
rgrover1 171:6092e61690dc 20 #include "BLEDevice.h"
rgrover1 171:6092e61690dc 21
rgrover1 171:6092e61690dc 22 #define UUID_INITIALIZER_LIST(FIRST, SECOND) { \
rgrover1 171:6092e61690dc 23 0xee, 0x0c, FIRST, SECOND, 0x87, 0x86, 0x40, 0xba, \
rgrover1 171:6092e61690dc 24 0xab, 0x96, 0x99, 0xb9, 0x1a, 0xc9, 0x81, 0xd8, \
rgrover1 171:6092e61690dc 25 }
rgrover1 171:6092e61690dc 26 const uint8_t URIBeacon2ControlServiceUUID[] = UUID_INITIALIZER_LIST(0x20, 0x80);
rgrover1 171:6092e61690dc 27 const uint8_t lockedStateCharUUID[] = UUID_INITIALIZER_LIST(0x20, 0x81);
rgrover1 171:6092e61690dc 28 const uint8_t uriDataCharUUID[] = UUID_INITIALIZER_LIST(0x20, 0x84);
rgrover1 171:6092e61690dc 29 const uint8_t flagsCharUUID[] = UUID_INITIALIZER_LIST(0x20, 0x85);
rgrover1 178:b6d6a2a11e86 30 const uint8_t txPowerLevelsCharUUID[] = UUID_INITIALIZER_LIST(0x20, 0x86);
rgrover1 171:6092e61690dc 31 const uint8_t beaconPeriodCharUUID[] = UUID_INITIALIZER_LIST(0x20, 0x88);
rgrover1 189:a23091b54ab5 32 const uint8_t resetCharUUID[] = UUID_INITIALIZER_LIST(0x20, 0x89);
rgrover1 171:6092e61690dc 33
rgrover1 171:6092e61690dc 34 class URIBeacon2Service {
rgrover1 180:afcd2f9c2ada 35 public:
rgrover1 175:4e85f7225f8f 36 enum TXPowerModes_t {
rgrover1 175:4e85f7225f8f 37 TX_POWER_MODE_LOWEST = 0,
rgrover1 175:4e85f7225f8f 38 TX_POWER_MODE_LOW = 1,
rgrover1 175:4e85f7225f8f 39 TX_POWER_MODE_MEDIUM = 2,
rgrover1 175:4e85f7225f8f 40 TX_POWER_MODE_HIGH = 3,
rgrover1 177:17f4b5924fe9 41 NUM_POWER_MODES
rgrover1 175:4e85f7225f8f 42 };
rgrover1 175:4e85f7225f8f 43
rgrover1 181:bbb6ce1082c3 44 /**
rgrover1 181:bbb6ce1082c3 45 * @param[ref] ble
rgrover1 181:bbb6ce1082c3 46 * BLEDevice object for the underlying controller.
rgrover1 181:bbb6ce1082c3 47 * @param[in] urldata
rgrover1 181:bbb6ce1082c3 48 * URI as a null-terminated string.
rgrover1 181:bbb6ce1082c3 49 * @param[in] flagsIn
rgrover1 181:bbb6ce1082c3 50 * UriBeacon Flags.
rgrover1 181:bbb6ce1082c3 51 * @param[in] effectiveTxPowerIn
rgrover1 181:bbb6ce1082c3 52 * UriBeacon Tx Power Level in dBm.
rgrover1 181:bbb6ce1082c3 53 * @param[in] beaconPeriodIn
rgrover1 181:bbb6ce1082c3 54 * The period in milliseconds that a UriBeacon packet is
rgrover1 181:bbb6ce1082c3 55 * transmitted. A value of zero disables UriBeacon
rgrover1 181:bbb6ce1082c3 56 * transmissions.
rgrover1 181:bbb6ce1082c3 57 */
rgrover1 192:3fd3dcf49005 58 URIBeacon2Service(BLEDevice &bleIn, const char *uriDataIn, uint8_t flagsIn = 0, int8_t effectiveTxPowerIn = 0, uint16_t beaconPeriodIn = 1000) :
rgrover1 192:3fd3dcf49005 59 ble(bleIn),
rgrover1 192:3fd3dcf49005 60 payloadIndex(0),
rgrover1 192:3fd3dcf49005 61 serviceDataPayload(),
rgrover1 192:3fd3dcf49005 62 initSucceeded(false),
rgrover1 192:3fd3dcf49005 63 lockedState(false),
rgrover1 192:3fd3dcf49005 64 uriDataLength(0),
rgrover1 192:3fd3dcf49005 65 uriData(),
rgrover1 192:3fd3dcf49005 66 flags(flagsIn),
rgrover1 200:80dd3e50705c 67 effectiveTxPower(effectiveTxPowerIn),
rgrover1 192:3fd3dcf49005 68 powerLevels(),
rgrover1 201:9bb7b3f45c20 69 beaconPeriod(beaconPeriodIn),
rgrover1 192:3fd3dcf49005 70 lockedStateChar(lockedStateCharUUID, reinterpret_cast<uint8_t *>(&lockedState), 1, 1, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ),
rgrover1 192:3fd3dcf49005 71 uriDataChar(uriDataCharUUID,
rgrover1 192:3fd3dcf49005 72 uriData,
rgrover1 192:3fd3dcf49005 73 MAX_SIZE_URI_DATA_CHAR_VALUE,
rgrover1 192:3fd3dcf49005 74 MAX_SIZE_URI_DATA_CHAR_VALUE,
rgrover1 192:3fd3dcf49005 75 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE),
rgrover1 192:3fd3dcf49005 76 flagsChar(flagsCharUUID, &flags, 1, 1, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE),
rgrover1 192:3fd3dcf49005 77 txPowerLevelsChar(txPowerLevelsCharUUID,
rgrover1 192:3fd3dcf49005 78 reinterpret_cast<uint8_t *>(powerLevels),
rgrover1 192:3fd3dcf49005 79 NUM_POWER_MODES * sizeof(int8_t),
rgrover1 192:3fd3dcf49005 80 NUM_POWER_MODES * sizeof(int8_t),
rgrover1 192:3fd3dcf49005 81 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE),
rgrover1 192:3fd3dcf49005 82 beaconPeriodChar(beaconPeriodCharUUID, reinterpret_cast<uint8_t *>(&beaconPeriod), 2, 2,
rgrover1 192:3fd3dcf49005 83 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE),
rgrover1 192:3fd3dcf49005 84 resetChar(resetCharUUID, reinterpret_cast<uint8_t *>(&resetFlag), 1, 1,
rgrover1 192:3fd3dcf49005 85 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE)
rgrover1 192:3fd3dcf49005 86 {
rgrover1 194:669eced4cd5e 87 if ((uriDataIn == NULL) || ((uriDataLength = strlen(uriDataIn)) == 0) || (uriDataLength > MAX_SIZE_URI_DATA_CHAR_VALUE)) {
rgrover1 192:3fd3dcf49005 88 return;
rgrover1 192:3fd3dcf49005 89 }
rgrover1 194:669eced4cd5e 90 strcpy(reinterpret_cast<char *>(uriData), uriDataIn);
rgrover1 192:3fd3dcf49005 91
rgrover1 192:3fd3dcf49005 92 configure();
rgrover1 192:3fd3dcf49005 93 if (initSucceeded) {
rgrover1 205:c957765916e2 94 saveDefaults();
rgrover1 171:6092e61690dc 95 }
rgrover1 171:6092e61690dc 96
rgrover1 192:3fd3dcf49005 97 GattCharacteristic *charTable[] = {&lockedStateChar, &uriDataChar, &flagsChar, &txPowerLevelsChar, &beaconPeriodChar, &resetChar};
rgrover1 192:3fd3dcf49005 98 GattService beaconControlService(URIBeacon2ControlServiceUUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
rgrover1 182:d16f8c11816b 99
rgrover1 192:3fd3dcf49005 100 ble.addService(beaconControlService);
rgrover1 192:3fd3dcf49005 101 ble.onDataWritten(this, &URIBeacon2Service::onDataWritten);
rgrover1 192:3fd3dcf49005 102 }
rgrover1 192:3fd3dcf49005 103
rgrover1 193:ac2feceb7e87 104 bool configuredSuccessfully(void) const {
rgrover1 192:3fd3dcf49005 105 return initSucceeded;
rgrover1 171:6092e61690dc 106 }
rgrover1 171:6092e61690dc 107
rgrover1 173:05c4b1cea65f 108 /**
rgrover1 196:febbd68b1095 109 * Please note that the following public APIs are offered to allow modifying
rgrover1 196:febbd68b1095 110 * the service programmatically. It is also possible to do so over BLE GATT
rgrover1 196:febbd68b1095 111 * transactions.
rgrover1 196:febbd68b1095 112 */
rgrover1 196:febbd68b1095 113 public:
rgrover1 196:febbd68b1095 114 /**
rgrover1 173:05c4b1cea65f 115 * Update flags of the URIBeacon dynamically.
rgrover1 173:05c4b1cea65f 116 *
rgrover1 173:05c4b1cea65f 117 * @param[in] flagsIn
rgrover1 173:05c4b1cea65f 118 *
rgrover1 173:05c4b1cea65f 119 * ### UriBeacon Flags
rgrover1 173:05c4b1cea65f 120 * Bit | Description
rgrover1 173:05c4b1cea65f 121 * :---- | :----------
rgrover1 173:05c4b1cea65f 122 * 0 | Invisible Hint
rgrover1 173:05c4b1cea65f 123 * 1..7 | Reserved for future use. Must be zero.
rgrover1 173:05c4b1cea65f 124 *
rgrover1 173:05c4b1cea65f 125 * The `Invisible Hint` flag is a command for the user-agent that tells
rgrover1 173:05c4b1cea65f 126 * it not to access or display the UriBeacon. This is a guideline only,
rgrover1 173:05c4b1cea65f 127 * and is not a blocking method. User agents may, with user approval,
rgrover1 173:05c4b1cea65f 128 * display invisible beacons.
rgrover1 173:05c4b1cea65f 129 */
rgrover1 171:6092e61690dc 130 void setFlags(uint8_t flagsIn) {
rgrover1 171:6092e61690dc 131 flags = flagsIn;
rgrover1 184:ec211f2288ef 132 configure();
rgrover1 171:6092e61690dc 133 }
rgrover1 171:6092e61690dc 134
rgrover1 177:17f4b5924fe9 135 /**
rgrover1 177:17f4b5924fe9 136 * Update the txPower for a particular mode in the powerLevels table.
rgrover1 177:17f4b5924fe9 137 */
rgrover1 177:17f4b5924fe9 138 void setTxPowerLevel(TXPowerModes_t mode, int8_t txPowerIn) {
rgrover1 177:17f4b5924fe9 139 powerLevels[mode] = txPowerIn;
rgrover1 177:17f4b5924fe9 140 }
rgrover1 177:17f4b5924fe9 141
rgrover1 177:17f4b5924fe9 142 /**
rgrover1 177:17f4b5924fe9 143 * Set the effective power mode from one of the values in the powerLevels tables.
rgrover1 177:17f4b5924fe9 144 */
rgrover1 191:6710298104b0 145 void useTxPowerMode(TXPowerModes_t mode) {
rgrover1 200:80dd3e50705c 146 effectiveTxPower = powerLevels[mode];
rgrover1 184:ec211f2288ef 147 configure();
rgrover1 171:6092e61690dc 148 }
rgrover1 171:6092e61690dc 149
rgrover1 183:41d6ffadba96 150 /**
rgrover1 183:41d6ffadba96 151 * The period in milliseconds that a UriBeacon packet is transmitted.
rgrover1 183:41d6ffadba96 152 *
rgrover1 183:41d6ffadba96 153 * @Note: A value of zero disables UriBeacon transmissions.
rgrover1 183:41d6ffadba96 154 */
rgrover1 171:6092e61690dc 155 void setBeaconPeriod(uint16_t beaconPeriodIn) {
rgrover1 171:6092e61690dc 156 beaconPeriod = beaconPeriodIn;
rgrover1 184:ec211f2288ef 157 configure();
rgrover1 171:6092e61690dc 158 }
rgrover1 171:6092e61690dc 159
rgrover1 196:febbd68b1095 160 private:
rgrover1 186:ce34008cea95 161 /**
rgrover1 186:ce34008cea95 162 * Setup the advertisement payload and GAP settings.
rgrover1 186:ce34008cea95 163 */
rgrover1 184:ec211f2288ef 164 void configure(void) {
rgrover1 171:6092e61690dc 165 const uint8_t BEACON_UUID[] = {0xD8, 0xFE};
rgrover1 171:6092e61690dc 166
rgrover1 171:6092e61690dc 167 payloadIndex = 0;
rgrover1 171:6092e61690dc 168 serviceDataPayload[payloadIndex++] = BEACON_UUID[0];
rgrover1 171:6092e61690dc 169 serviceDataPayload[payloadIndex++] = BEACON_UUID[1];
rgrover1 171:6092e61690dc 170 serviceDataPayload[payloadIndex++] = flags;
rgrover1 200:80dd3e50705c 171 serviceDataPayload[payloadIndex++] = effectiveTxPower;
rgrover1 171:6092e61690dc 172
rgrover1 187:057c547facd2 173 const char *urlData = reinterpret_cast<char *>(uriData);
rgrover1 171:6092e61690dc 174 size_t sizeofURLData = uriDataLength;
rgrover1 183:41d6ffadba96 175 size_t encodedBytes = encodeURISchemePrefix(urlData, sizeofURLData) + encodeURI(urlData, sizeofURLData);
rgrover1 171:6092e61690dc 176
rgrover1 171:6092e61690dc 177 ble.clearAdvertisingPayload();
rgrover1 171:6092e61690dc 178 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, BEACON_UUID, sizeof(BEACON_UUID));
rgrover1 171:6092e61690dc 179 ble.accumulateAdvertisingPayload(GapAdvertisingData::SERVICE_DATA, serviceDataPayload, encodedBytes + 4);
rgrover1 171:6092e61690dc 180
rgrover1 201:9bb7b3f45c20 181 ble.setAdvertisingInterval(Gap::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(beaconPeriod));
rgrover1 200:80dd3e50705c 182 ble.setTxPower(effectiveTxPower);
rgrover1 171:6092e61690dc 183 }
rgrover1 171:6092e61690dc 184
rgrover1 171:6092e61690dc 185 size_t encodeURISchemePrefix(const char *&urldata, size_t &sizeofURLData) {
rgrover1 171:6092e61690dc 186 const char *prefixes[] = {
rgrover1 171:6092e61690dc 187 "http://www.",
rgrover1 171:6092e61690dc 188 "https://www.",
rgrover1 171:6092e61690dc 189 "http://",
rgrover1 171:6092e61690dc 190 "https://",
rgrover1 171:6092e61690dc 191 "urn:uuid:"
rgrover1 171:6092e61690dc 192 };
rgrover1 171:6092e61690dc 193
rgrover1 171:6092e61690dc 194 size_t encodedBytes = 0;
rgrover1 171:6092e61690dc 195 const size_t NUM_PREFIXES = sizeof(prefixes) / sizeof(char *);
rgrover1 171:6092e61690dc 196 for (unsigned i = 0; i < NUM_PREFIXES; i++) {
rgrover1 171:6092e61690dc 197 size_t prefixLen = strlen(prefixes[i]);
rgrover1 171:6092e61690dc 198 if (strncmp(urldata, prefixes[i], prefixLen) == 0) {
rgrover1 171:6092e61690dc 199 serviceDataPayload[payloadIndex++] = i;
rgrover1 171:6092e61690dc 200 encodedBytes = 1;
rgrover1 171:6092e61690dc 201
rgrover1 171:6092e61690dc 202 urldata += prefixLen;
rgrover1 171:6092e61690dc 203 sizeofURLData -= prefixLen;
rgrover1 171:6092e61690dc 204 break;
rgrover1 171:6092e61690dc 205 }
rgrover1 171:6092e61690dc 206 }
rgrover1 171:6092e61690dc 207
rgrover1 171:6092e61690dc 208 return encodedBytes;
rgrover1 171:6092e61690dc 209 }
rgrover1 171:6092e61690dc 210
rgrover1 171:6092e61690dc 211 size_t encodeURI(const char *urldata, size_t sizeofURLData) {
rgrover1 171:6092e61690dc 212 const char *suffixes[] = {
rgrover1 171:6092e61690dc 213 ".com/",
rgrover1 171:6092e61690dc 214 ".org/",
rgrover1 171:6092e61690dc 215 ".edu/",
rgrover1 171:6092e61690dc 216 ".net/",
rgrover1 171:6092e61690dc 217 ".info/",
rgrover1 171:6092e61690dc 218 ".biz/",
rgrover1 171:6092e61690dc 219 ".gov/",
rgrover1 171:6092e61690dc 220 ".com",
rgrover1 171:6092e61690dc 221 ".org",
rgrover1 171:6092e61690dc 222 ".edu",
rgrover1 171:6092e61690dc 223 ".net",
rgrover1 171:6092e61690dc 224 ".info",
rgrover1 171:6092e61690dc 225 ".biz",
rgrover1 171:6092e61690dc 226 ".gov"
rgrover1 171:6092e61690dc 227 };
rgrover1 171:6092e61690dc 228 const size_t NUM_SUFFIXES = sizeof(suffixes) / sizeof(char *);
rgrover1 171:6092e61690dc 229
rgrover1 171:6092e61690dc 230 size_t encodedBytes = 0;
rgrover1 171:6092e61690dc 231 while (sizeofURLData && (payloadIndex < MAX_SIZEOF_SERVICE_DATA_PAYLOAD)) {
rgrover1 171:6092e61690dc 232 /* check for suffix match */
rgrover1 171:6092e61690dc 233 unsigned i;
rgrover1 171:6092e61690dc 234 for (i = 0; i < NUM_SUFFIXES; i++) {
rgrover1 171:6092e61690dc 235 size_t suffixLen = strlen(suffixes[i]);
rgrover1 171:6092e61690dc 236 if ((suffixLen == 0) || (sizeofURLData < suffixLen)) {
rgrover1 171:6092e61690dc 237 continue;
rgrover1 171:6092e61690dc 238 }
rgrover1 171:6092e61690dc 239
rgrover1 171:6092e61690dc 240 if (strncmp(urldata, suffixes[i], suffixLen) == 0) {
rgrover1 171:6092e61690dc 241 serviceDataPayload[payloadIndex++] = i;
rgrover1 171:6092e61690dc 242 ++encodedBytes;
rgrover1 171:6092e61690dc 243 urldata += suffixLen;
rgrover1 171:6092e61690dc 244 sizeofURLData -= suffixLen;
rgrover1 171:6092e61690dc 245 break; /* from the for loop for checking against suffixes */
rgrover1 171:6092e61690dc 246 }
rgrover1 171:6092e61690dc 247 }
rgrover1 171:6092e61690dc 248 /* This is the default case where we've got an ordinary character which doesn't match a suffix. */
rgrover1 171:6092e61690dc 249 if (i == NUM_SUFFIXES) {
rgrover1 171:6092e61690dc 250 serviceDataPayload[payloadIndex++] = *urldata;
rgrover1 171:6092e61690dc 251 ++encodedBytes;
rgrover1 171:6092e61690dc 252 ++urldata;
rgrover1 171:6092e61690dc 253 --sizeofURLData;
rgrover1 171:6092e61690dc 254 }
rgrover1 171:6092e61690dc 255 }
rgrover1 192:3fd3dcf49005 256 if (sizeofURLData == 0) {
rgrover1 192:3fd3dcf49005 257 initSucceeded = true;
rgrover1 182:d16f8c11816b 258 }
rgrover1 171:6092e61690dc 259
rgrover1 171:6092e61690dc 260 return encodedBytes;
rgrover1 171:6092e61690dc 261 }
rgrover1 171:6092e61690dc 262
rgrover1 203:7b5178d2fa03 263 void onDataWritten(const GattCharacteristicWriteCBParams *params) {
rgrover1 185:7cd70497aec8 264 if (params->charHandle == uriDataChar.getValueAttribute().getHandle()) {
rgrover1 185:7cd70497aec8 265 if (lockedState) { /* When locked, the device isn't allowed to update the uriData characteristic. */
rgrover1 185:7cd70497aec8 266 /* Restore GATT database with previous value. */
rgrover1 187:057c547facd2 267 ble.updateCharacteristicValue(uriDataChar.getValueAttribute().getHandle(), uriData, uriDataLength);
rgrover1 185:7cd70497aec8 268 return;
rgrover1 185:7cd70497aec8 269 }
rgrover1 185:7cd70497aec8 270
rgrover1 185:7cd70497aec8 271 /* We don't handle very large writes at the moment. */
rgrover1 185:7cd70497aec8 272 if ((params->offset != 0) || (params->len > MAX_SIZE_URI_DATA_CHAR_VALUE)) {
rgrover1 185:7cd70497aec8 273 return;
rgrover1 185:7cd70497aec8 274 }
rgrover1 185:7cd70497aec8 275
rgrover1 185:7cd70497aec8 276 uriDataLength = params->len;
rgrover1 187:057c547facd2 277 memcpy(uriData, params->data, uriDataLength);
rgrover1 185:7cd70497aec8 278 } else if (params->charHandle == flagsChar.getValueAttribute().getHandle()) {
rgrover1 185:7cd70497aec8 279 if (lockedState) { /* When locked, the device isn't allowed to update the characteristic. */
rgrover1 185:7cd70497aec8 280 /* Restore GATT database with previous value. */
rgrover1 185:7cd70497aec8 281 ble.updateCharacteristicValue(flagsChar.getValueAttribute().getHandle(), &flags, 1 /* size */);
rgrover1 185:7cd70497aec8 282 return;
rgrover1 185:7cd70497aec8 283 } else {
rgrover1 185:7cd70497aec8 284 flags = *(params->data);
rgrover1 185:7cd70497aec8 285 }
rgrover1 185:7cd70497aec8 286 } else if (params->charHandle == txPowerLevelsChar.getValueAttribute().getHandle()) {
rgrover1 185:7cd70497aec8 287 if (lockedState) { /* When locked, the device isn't allowed to update the characteristic. */
rgrover1 185:7cd70497aec8 288 /* Restore GATT database with previous value. */
rgrover1 185:7cd70497aec8 289 ble.updateCharacteristicValue(txPowerLevelsChar.getValueAttribute().getHandle(), reinterpret_cast<uint8_t *>(powerLevels), NUM_POWER_MODES * sizeof(int8_t));
rgrover1 185:7cd70497aec8 290 return;
rgrover1 185:7cd70497aec8 291 } else {
rgrover1 185:7cd70497aec8 292 memcpy(powerLevels, params->data, NUM_POWER_MODES * sizeof(int8_t));
rgrover1 185:7cd70497aec8 293 }
rgrover1 185:7cd70497aec8 294 } else if (params->charHandle == beaconPeriodChar.getValueAttribute().getHandle()) {
rgrover1 185:7cd70497aec8 295 if (lockedState) { /* When locked, the device isn't allowed to update the characteristic. */
rgrover1 185:7cd70497aec8 296 /* Restore GATT database with previous value. */
rgrover1 190:ad1ed2b5ea52 297 ble.updateCharacteristicValue(beaconPeriodChar.getValueAttribute().getHandle(), reinterpret_cast<uint8_t *>(&beaconPeriod), sizeof(uint16_t));
rgrover1 185:7cd70497aec8 298 return;
rgrover1 185:7cd70497aec8 299 } else {
rgrover1 185:7cd70497aec8 300 beaconPeriod = *((uint16_t *)(params->data));
rgrover1 185:7cd70497aec8 301 }
rgrover1 189:a23091b54ab5 302 } else if (params->charHandle == resetChar.getValueAttribute().getHandle()) {
rgrover1 200:80dd3e50705c 303 resetDefaults();
rgrover1 185:7cd70497aec8 304 }
rgrover1 185:7cd70497aec8 305 configure();
rgrover1 185:7cd70497aec8 306 ble.setAdvertisingPayload();
rgrover1 185:7cd70497aec8 307 }
rgrover1 185:7cd70497aec8 308
rgrover1 205:c957765916e2 309 /* Preserve the defaults to be able to reset() upon request. */
rgrover1 205:c957765916e2 310 void saveDefaults(void) {
rgrover1 205:c957765916e2 311 memcpy(defaultURIData, uriData, MAX_SIZE_URI_DATA_CHAR_VALUE);
rgrover1 205:c957765916e2 312 defaultFlags = flags;
rgrover1 205:c957765916e2 313 defaultEffectiveTxPower = effectiveTxPower;
rgrover1 205:c957765916e2 314 defaultBeaconPeriod = beaconPeriod;
rgrover1 205:c957765916e2 315 }
rgrover1 205:c957765916e2 316
rgrover1 200:80dd3e50705c 317 void resetDefaults(void) {
rgrover1 200:80dd3e50705c 318 memcpy(uriData, defaultURIData, MAX_SIZE_URI_DATA_CHAR_VALUE);
rgrover1 189:a23091b54ab5 319 memset(powerLevels, 0, sizeof(powerLevels));
rgrover1 200:80dd3e50705c 320 flags = defaultFlags;
rgrover1 200:80dd3e50705c 321 effectiveTxPower = defaultEffectiveTxPower;
rgrover1 200:80dd3e50705c 322 beaconPeriod = defaultBeaconPeriod;
rgrover1 189:a23091b54ab5 323
rgrover1 189:a23091b54ab5 324 ble.updateCharacteristicValue(uriDataChar.getValueAttribute().getHandle(), uriData, uriDataLength);
rgrover1 189:a23091b54ab5 325 ble.updateCharacteristicValue(flagsChar.getValueAttribute().getHandle(), &flags, 1 /* size */);
rgrover1 189:a23091b54ab5 326 ble.updateCharacteristicValue(beaconPeriodChar.getValueAttribute().getHandle(), reinterpret_cast<uint8_t *>(&beaconPeriod), sizeof(uint16_t));
rgrover1 189:a23091b54ab5 327
rgrover1 189:a23091b54ab5 328 configure();
rgrover1 189:a23091b54ab5 329 }
rgrover1 189:a23091b54ab5 330
rgrover1 185:7cd70497aec8 331 private:
rgrover1 185:7cd70497aec8 332 /**
rgrover1 185:7cd70497aec8 333 * For debugging only.
rgrover1 185:7cd70497aec8 334 */
rgrover1 185:7cd70497aec8 335 void dumpEncodedSeviceData() const {
rgrover1 185:7cd70497aec8 336 printf("encoded: '");
rgrover1 185:7cd70497aec8 337 for (unsigned i = 0; i < payloadIndex; i++) {
rgrover1 185:7cd70497aec8 338 printf(" %02x", serviceDataPayload[i]);
rgrover1 185:7cd70497aec8 339 }
rgrover1 185:7cd70497aec8 340 printf("'\r\n");
rgrover1 185:7cd70497aec8 341 }
rgrover1 185:7cd70497aec8 342
rgrover1 171:6092e61690dc 343 private:
rgrover1 199:6b57874115f6 344 static const size_t MAX_SIZEOF_SERVICE_DATA_PAYLOAD = 18; /* Uri Data must be between 0 and 18 bytes in length. */
rgrover1 204:479f81fd5d3b 345 static const size_t MAX_SIZE_URI_DATA_CHAR_VALUE = 48; /* This is chosen arbitrarily. It should be large enough
rgrover1 204:479f81fd5d3b 346 * to hold any reasonable uncompressed URI. */
rgrover1 171:6092e61690dc 347
rgrover1 171:6092e61690dc 348 private:
rgrover1 171:6092e61690dc 349 BLEDevice &ble;
rgrover1 171:6092e61690dc 350
rgrover1 171:6092e61690dc 351 size_t payloadIndex;
rgrover1 171:6092e61690dc 352 uint8_t serviceDataPayload[MAX_SIZEOF_SERVICE_DATA_PAYLOAD];
rgrover1 192:3fd3dcf49005 353 bool initSucceeded;
rgrover1 182:d16f8c11816b 354
rgrover1 171:6092e61690dc 355 bool lockedState;
rgrover1 171:6092e61690dc 356 uint16_t uriDataLength;
rgrover1 187:057c547facd2 357 uint8_t uriData[MAX_SIZE_URI_DATA_CHAR_VALUE];
rgrover1 171:6092e61690dc 358 uint8_t flags;
rgrover1 200:80dd3e50705c 359 int8_t effectiveTxPower;
rgrover1 177:17f4b5924fe9 360 int8_t powerLevels[NUM_POWER_MODES];
rgrover1 171:6092e61690dc 361 uint16_t beaconPeriod;
rgrover1 189:a23091b54ab5 362 bool resetFlag;
rgrover1 171:6092e61690dc 363
rgrover1 200:80dd3e50705c 364 uint8_t defaultURIData[MAX_SIZE_URI_DATA_CHAR_VALUE];
rgrover1 200:80dd3e50705c 365 uint8_t defaultFlags;
rgrover1 200:80dd3e50705c 366 int8_t defaultEffectiveTxPower;
rgrover1 200:80dd3e50705c 367 uint16_t defaultBeaconPeriod;
rgrover1 188:9020a5ac80c8 368
rgrover1 171:6092e61690dc 369 GattCharacteristic lockedStateChar;
rgrover1 171:6092e61690dc 370 GattCharacteristic uriDataChar;
rgrover1 171:6092e61690dc 371 GattCharacteristic flagsChar;
rgrover1 178:b6d6a2a11e86 372 GattCharacteristic txPowerLevelsChar;
rgrover1 171:6092e61690dc 373 GattCharacteristic beaconPeriodChar;
rgrover1 189:a23091b54ab5 374 GattCharacteristic resetChar;
rgrover1 171:6092e61690dc 375 };
rgrover1 171:6092e61690dc 376
rgrover1 171:6092e61690dc 377 #endif /* #ifndef __BLE_URI_BEACON_2_SERVICE_H__*/