Bill Schilit / BLE_API

Improve readability with getHandle inline

Fork of BLE_API by Bluetooth Low Energy

services/URIBeaconConfigService.h@213:ac3b745af1d0, 2014-12-01 (annotated)

Committer:
rgrover1
Date:
Mon Dec 01 14:31:18 2014 +0000
Revision:
213:ac3b745af1d0
Parent:
212:852d45a52016
Child:
214:7d79fa197212
Synchronized with git rev 0c38a1e8

Author: Rohit Grover

fast path for encodeURISchemePrefix() if sizeofURLData is 0

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 207:e88130dc254c 17 #ifndef __BLE_URI_BEACON_CONFIG_SERVICE_H__
rgrover1 207:e88130dc254c 18 #define __BLE_URI_BEACON_CONFIG_SERVICE_H__
rgrover1 171:6092e61690dc 19
rgrover1 171:6092e61690dc 20 #include "BLEDevice.h"
rgrover1 171:6092e61690dc 21
rgrover1 206:49646c933822 22 #define UUID_INITIALIZER_LIST(FIRST, SECOND) { \
rgrover1 206:49646c933822 23 0xee, 0x0c, FIRST, SECOND, 0x87, 0x86, 0x40, 0xba, \
rgrover1 206:49646c933822 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 207:e88130dc254c 34 class URIBeaconConfigService {
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 208:88a3a58769bf 47 * @param[in] uridata
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 207:e88130dc254c 58 URIBeaconConfigService(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 210:0c14030d1bd0 92 configureGAP();
rgrover1 171:6092e61690dc 93
rgrover1 192:3fd3dcf49005 94 GattCharacteristic *charTable[] = {&lockedStateChar, &uriDataChar, &flagsChar, &txPowerLevelsChar, &beaconPeriodChar, &resetChar};
rgrover1 192:3fd3dcf49005 95 GattService beaconControlService(URIBeacon2ControlServiceUUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
rgrover1 182:d16f8c11816b 96
rgrover1 192:3fd3dcf49005 97 ble.addService(beaconControlService);
rgrover1 207:e88130dc254c 98 ble.onDataWritten(this, &URIBeaconConfigService::onDataWritten);
rgrover1 192:3fd3dcf49005 99 }
rgrover1 192:3fd3dcf49005 100
rgrover1 193:ac2feceb7e87 101 bool configuredSuccessfully(void) const {
rgrover1 192:3fd3dcf49005 102 return initSucceeded;
rgrover1 171:6092e61690dc 103 }
rgrover1 171:6092e61690dc 104
rgrover1 173:05c4b1cea65f 105 /**
rgrover1 196:febbd68b1095 106 * Please note that the following public APIs are offered to allow modifying
rgrover1 196:febbd68b1095 107 * the service programmatically. It is also possible to do so over BLE GATT
rgrover1 196:febbd68b1095 108 * transactions.
rgrover1 196:febbd68b1095 109 */
rgrover1 196:febbd68b1095 110 public:
rgrover1 196:febbd68b1095 111 /**
rgrover1 173:05c4b1cea65f 112 * Update flags of the URIBeacon dynamically.
rgrover1 173:05c4b1cea65f 113 *
rgrover1 173:05c4b1cea65f 114 * @param[in] flagsIn
rgrover1 173:05c4b1cea65f 115 *
rgrover1 173:05c4b1cea65f 116 * ### UriBeacon Flags
rgrover1 173:05c4b1cea65f 117 * Bit | Description
rgrover1 173:05c4b1cea65f 118 * :---- | :----------
rgrover1 173:05c4b1cea65f 119 * 0 | Invisible Hint
rgrover1 173:05c4b1cea65f 120 * 1..7 | Reserved for future use. Must be zero.
rgrover1 173:05c4b1cea65f 121 *
rgrover1 173:05c4b1cea65f 122 * The `Invisible Hint` flag is a command for the user-agent that tells
rgrover1 173:05c4b1cea65f 123 * it not to access or display the UriBeacon. This is a guideline only,
rgrover1 173:05c4b1cea65f 124 * and is not a blocking method. User agents may, with user approval,
rgrover1 173:05c4b1cea65f 125 * display invisible beacons.
rgrover1 173:05c4b1cea65f 126 */
rgrover1 171:6092e61690dc 127 void setFlags(uint8_t flagsIn) {
rgrover1 171:6092e61690dc 128 flags = flagsIn;
rgrover1 210:0c14030d1bd0 129 configureGAP();
rgrover1 211:f181effe5de3 130 updateFlagsCharacteristic();
rgrover1 171:6092e61690dc 131 }
rgrover1 171:6092e61690dc 132
rgrover1 177:17f4b5924fe9 133 /**
rgrover1 177:17f4b5924fe9 134 * Update the txPower for a particular mode in the powerLevels table.
rgrover1 177:17f4b5924fe9 135 */
rgrover1 177:17f4b5924fe9 136 void setTxPowerLevel(TXPowerModes_t mode, int8_t txPowerIn) {
rgrover1 177:17f4b5924fe9 137 powerLevels[mode] = txPowerIn;
rgrover1 177:17f4b5924fe9 138 }
rgrover1 177:17f4b5924fe9 139
rgrover1 177:17f4b5924fe9 140 /**
rgrover1 177:17f4b5924fe9 141 * Set the effective power mode from one of the values in the powerLevels tables.
rgrover1 177:17f4b5924fe9 142 */
rgrover1 191:6710298104b0 143 void useTxPowerMode(TXPowerModes_t mode) {
rgrover1 200:80dd3e50705c 144 effectiveTxPower = powerLevels[mode];
rgrover1 210:0c14030d1bd0 145 configureGAP();
rgrover1 171:6092e61690dc 146 }
rgrover1 171:6092e61690dc 147
rgrover1 183:41d6ffadba96 148 /**
rgrover1 183:41d6ffadba96 149 * The period in milliseconds that a UriBeacon packet is transmitted.
rgrover1 183:41d6ffadba96 150 *
rgrover1 183:41d6ffadba96 151 * @Note: A value of zero disables UriBeacon transmissions.
rgrover1 183:41d6ffadba96 152 */
rgrover1 171:6092e61690dc 153 void setBeaconPeriod(uint16_t beaconPeriodIn) {
rgrover1 171:6092e61690dc 154 beaconPeriod = beaconPeriodIn;
rgrover1 210:0c14030d1bd0 155 configureGAP();
rgrover1 211:f181effe5de3 156 updateBeaconPeriodCharacteristic();
rgrover1 171:6092e61690dc 157 }
rgrover1 171:6092e61690dc 158
rgrover1 196:febbd68b1095 159 private:
rgrover1 186:ce34008cea95 160 /**
rgrover1 186:ce34008cea95 161 * Setup the advertisement payload and GAP settings.
rgrover1 186:ce34008cea95 162 */
rgrover1 210:0c14030d1bd0 163 void configureGAP(void) {
rgrover1 171:6092e61690dc 164 const uint8_t BEACON_UUID[] = {0xD8, 0xFE};
rgrover1 171:6092e61690dc 165
rgrover1 206:49646c933822 166 payloadIndex = 0;
rgrover1 171:6092e61690dc 167 serviceDataPayload[payloadIndex++] = BEACON_UUID[0];
rgrover1 171:6092e61690dc 168 serviceDataPayload[payloadIndex++] = BEACON_UUID[1];
rgrover1 171:6092e61690dc 169 serviceDataPayload[payloadIndex++] = flags;
rgrover1 200:80dd3e50705c 170 serviceDataPayload[payloadIndex++] = effectiveTxPower;
rgrover1 171:6092e61690dc 171
rgrover1 206:49646c933822 172 const char *urlData = reinterpret_cast<char *>(uriData);
rgrover1 206:49646c933822 173 size_t sizeofURLData = uriDataLength;
rgrover1 206:49646c933822 174 size_t encodedBytes = encodeURISchemePrefix(urlData, sizeofURLData) + encodeURI(urlData, sizeofURLData);
rgrover1 171:6092e61690dc 175
rgrover1 171:6092e61690dc 176 ble.clearAdvertisingPayload();
rgrover1 171:6092e61690dc 177 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, BEACON_UUID, sizeof(BEACON_UUID));
rgrover1 171:6092e61690dc 178 ble.accumulateAdvertisingPayload(GapAdvertisingData::SERVICE_DATA, serviceDataPayload, encodedBytes + 4);
rgrover1 171:6092e61690dc 179
rgrover1 201:9bb7b3f45c20 180 ble.setAdvertisingInterval(Gap::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(beaconPeriod));
rgrover1 200:80dd3e50705c 181 ble.setTxPower(effectiveTxPower);
rgrover1 171:6092e61690dc 182 }
rgrover1 171:6092e61690dc 183
rgrover1 171:6092e61690dc 184 size_t encodeURISchemePrefix(const char *&urldata, size_t &sizeofURLData) {
rgrover1 213:ac3b745af1d0 185 if (!sizeofURLData) {
rgrover1 213:ac3b745af1d0 186 return 0;
rgrover1 213:ac3b745af1d0 187 }
rgrover1 213:ac3b745af1d0 188
rgrover1 171:6092e61690dc 189 const char *prefixes[] = {
rgrover1 171:6092e61690dc 190 "http://www.",
rgrover1 171:6092e61690dc 191 "https://www.",
rgrover1 171:6092e61690dc 192 "http://",
rgrover1 171:6092e61690dc 193 "https://",
rgrover1 171:6092e61690dc 194 "urn:uuid:"
rgrover1 171:6092e61690dc 195 };
rgrover1 171:6092e61690dc 196
rgrover1 206:49646c933822 197 size_t encodedBytes = 0;
rgrover1 171:6092e61690dc 198 const size_t NUM_PREFIXES = sizeof(prefixes) / sizeof(char *);
rgrover1 171:6092e61690dc 199 for (unsigned i = 0; i < NUM_PREFIXES; i++) {
rgrover1 171:6092e61690dc 200 size_t prefixLen = strlen(prefixes[i]);
rgrover1 171:6092e61690dc 201 if (strncmp(urldata, prefixes[i], prefixLen) == 0) {
rgrover1 171:6092e61690dc 202 serviceDataPayload[payloadIndex++] = i;
rgrover1 206:49646c933822 203 encodedBytes = 1;
rgrover1 171:6092e61690dc 204
rgrover1 206:49646c933822 205 urldata += prefixLen;
rgrover1 171:6092e61690dc 206 sizeofURLData -= prefixLen;
rgrover1 171:6092e61690dc 207 break;
rgrover1 171:6092e61690dc 208 }
rgrover1 171:6092e61690dc 209 }
rgrover1 171:6092e61690dc 210
rgrover1 171:6092e61690dc 211 return encodedBytes;
rgrover1 171:6092e61690dc 212 }
rgrover1 171:6092e61690dc 213
rgrover1 171:6092e61690dc 214 size_t encodeURI(const char *urldata, size_t sizeofURLData) {
rgrover1 171:6092e61690dc 215 const char *suffixes[] = {
rgrover1 171:6092e61690dc 216 ".com/",
rgrover1 171:6092e61690dc 217 ".org/",
rgrover1 171:6092e61690dc 218 ".edu/",
rgrover1 171:6092e61690dc 219 ".net/",
rgrover1 171:6092e61690dc 220 ".info/",
rgrover1 171:6092e61690dc 221 ".biz/",
rgrover1 171:6092e61690dc 222 ".gov/",
rgrover1 171:6092e61690dc 223 ".com",
rgrover1 171:6092e61690dc 224 ".org",
rgrover1 171:6092e61690dc 225 ".edu",
rgrover1 171:6092e61690dc 226 ".net",
rgrover1 171:6092e61690dc 227 ".info",
rgrover1 171:6092e61690dc 228 ".biz",
rgrover1 171:6092e61690dc 229 ".gov"
rgrover1 171:6092e61690dc 230 };
rgrover1 171:6092e61690dc 231 const size_t NUM_SUFFIXES = sizeof(suffixes) / sizeof(char *);
rgrover1 171:6092e61690dc 232
rgrover1 171:6092e61690dc 233 size_t encodedBytes = 0;
rgrover1 171:6092e61690dc 234 while (sizeofURLData && (payloadIndex < MAX_SIZEOF_SERVICE_DATA_PAYLOAD)) {
rgrover1 171:6092e61690dc 235 /* check for suffix match */
rgrover1 171:6092e61690dc 236 unsigned i;
rgrover1 171:6092e61690dc 237 for (i = 0; i < NUM_SUFFIXES; i++) {
rgrover1 171:6092e61690dc 238 size_t suffixLen = strlen(suffixes[i]);
rgrover1 171:6092e61690dc 239 if ((suffixLen == 0) || (sizeofURLData < suffixLen)) {
rgrover1 171:6092e61690dc 240 continue;
rgrover1 171:6092e61690dc 241 }
rgrover1 171:6092e61690dc 242
rgrover1 171:6092e61690dc 243 if (strncmp(urldata, suffixes[i], suffixLen) == 0) {
rgrover1 171:6092e61690dc 244 serviceDataPayload[payloadIndex++] = i;
rgrover1 171:6092e61690dc 245 ++encodedBytes;
rgrover1 171:6092e61690dc 246 urldata += suffixLen;
rgrover1 171:6092e61690dc 247 sizeofURLData -= suffixLen;
rgrover1 171:6092e61690dc 248 break; /* from the for loop for checking against suffixes */
rgrover1 171:6092e61690dc 249 }
rgrover1 171:6092e61690dc 250 }
rgrover1 171:6092e61690dc 251 /* This is the default case where we've got an ordinary character which doesn't match a suffix. */
rgrover1 171:6092e61690dc 252 if (i == NUM_SUFFIXES) {
rgrover1 171:6092e61690dc 253 serviceDataPayload[payloadIndex++] = *urldata;
rgrover1 171:6092e61690dc 254 ++encodedBytes;
rgrover1 171:6092e61690dc 255 ++urldata;
rgrover1 171:6092e61690dc 256 --sizeofURLData;
rgrover1 171:6092e61690dc 257 }
rgrover1 171:6092e61690dc 258 }
rgrover1 192:3fd3dcf49005 259 if (sizeofURLData == 0) {
rgrover1 192:3fd3dcf49005 260 initSucceeded = true;
rgrover1 182:d16f8c11816b 261 }
rgrover1 171:6092e61690dc 262
rgrover1 171:6092e61690dc 263 return encodedBytes;
rgrover1 171:6092e61690dc 264 }
rgrover1 171:6092e61690dc 265
rgrover1 203:7b5178d2fa03 266 void onDataWritten(const GattCharacteristicWriteCBParams *params) {
rgrover1 185:7cd70497aec8 267 if (params->charHandle == uriDataChar.getValueAttribute().getHandle()) {
rgrover1 185:7cd70497aec8 268 if (lockedState) { /* When locked, the device isn't allowed to update the uriData characteristic. */
rgrover1 185:7cd70497aec8 269 /* Restore GATT database with previous value. */
rgrover1 211:f181effe5de3 270 updateURIDataCharacteristic();
rgrover1 185:7cd70497aec8 271 return;
rgrover1 185:7cd70497aec8 272 }
rgrover1 185:7cd70497aec8 273
rgrover1 185:7cd70497aec8 274 /* We don't handle very large writes at the moment. */
rgrover1 185:7cd70497aec8 275 if ((params->offset != 0) || (params->len > MAX_SIZE_URI_DATA_CHAR_VALUE)) {
rgrover1 185:7cd70497aec8 276 return;
rgrover1 185:7cd70497aec8 277 }
rgrover1 185:7cd70497aec8 278
rgrover1 185:7cd70497aec8 279 uriDataLength = params->len;
rgrover1 187:057c547facd2 280 memcpy(uriData, params->data, uriDataLength);
rgrover1 185:7cd70497aec8 281 } else if (params->charHandle == flagsChar.getValueAttribute().getHandle()) {
rgrover1 185:7cd70497aec8 282 if (lockedState) { /* When locked, the device isn't allowed to update the characteristic. */
rgrover1 185:7cd70497aec8 283 /* Restore GATT database with previous value. */
rgrover1 211:f181effe5de3 284 updateFlagsCharacteristic();
rgrover1 185:7cd70497aec8 285 return;
rgrover1 185:7cd70497aec8 286 } else {
rgrover1 185:7cd70497aec8 287 flags = *(params->data);
rgrover1 185:7cd70497aec8 288 }
rgrover1 185:7cd70497aec8 289 } else if (params->charHandle == txPowerLevelsChar.getValueAttribute().getHandle()) {
rgrover1 185:7cd70497aec8 290 if (lockedState) { /* When locked, the device isn't allowed to update the characteristic. */
rgrover1 185:7cd70497aec8 291 /* Restore GATT database with previous value. */
rgrover1 185:7cd70497aec8 292 ble.updateCharacteristicValue(txPowerLevelsChar.getValueAttribute().getHandle(), reinterpret_cast<uint8_t *>(powerLevels), NUM_POWER_MODES * sizeof(int8_t));
rgrover1 185:7cd70497aec8 293 return;
rgrover1 185:7cd70497aec8 294 } else {
rgrover1 185:7cd70497aec8 295 memcpy(powerLevels, params->data, NUM_POWER_MODES * sizeof(int8_t));
rgrover1 185:7cd70497aec8 296 }
rgrover1 185:7cd70497aec8 297 } else if (params->charHandle == beaconPeriodChar.getValueAttribute().getHandle()) {
rgrover1 185:7cd70497aec8 298 if (lockedState) { /* When locked, the device isn't allowed to update the characteristic. */
rgrover1 185:7cd70497aec8 299 /* Restore GATT database with previous value. */
rgrover1 211:f181effe5de3 300 updateBeaconPeriodCharacteristic();
rgrover1 185:7cd70497aec8 301 return;
rgrover1 185:7cd70497aec8 302 } else {
rgrover1 185:7cd70497aec8 303 beaconPeriod = *((uint16_t *)(params->data));
rgrover1 185:7cd70497aec8 304 }
rgrover1 189:a23091b54ab5 305 } else if (params->charHandle == resetChar.getValueAttribute().getHandle()) {
rgrover1 200:80dd3e50705c 306 resetDefaults();
rgrover1 185:7cd70497aec8 307 }
rgrover1 210:0c14030d1bd0 308 configureGAP();
rgrover1 185:7cd70497aec8 309 ble.setAdvertisingPayload();
rgrover1 185:7cd70497aec8 310 }
rgrover1 185:7cd70497aec8 311
rgrover1 200:80dd3e50705c 312 void resetDefaults(void) {
rgrover1 212:852d45a52016 313 memset(uriData, 0, MAX_SIZE_URI_DATA_CHAR_VALUE);
rgrover1 212:852d45a52016 314 uriDataLength = 0;
rgrover1 189:a23091b54ab5 315 memset(powerLevels, 0, sizeof(powerLevels));
rgrover1 212:852d45a52016 316 flags = 0;
rgrover1 212:852d45a52016 317 effectiveTxPower = 0;
rgrover1 212:852d45a52016 318 beaconPeriod = 0;
rgrover1 189:a23091b54ab5 319
rgrover1 211:f181effe5de3 320 updateGATT();
rgrover1 211:f181effe5de3 321 }
rgrover1 211:f181effe5de3 322
rgrover1 211:f181effe5de3 323 void updateGATT(void) {
rgrover1 211:f181effe5de3 324 updateURIDataCharacteristic();
rgrover1 211:f181effe5de3 325 updateFlagsCharacteristic();
rgrover1 211:f181effe5de3 326 updateBeaconPeriodCharacteristic();
rgrover1 211:f181effe5de3 327 }
rgrover1 211:f181effe5de3 328
rgrover1 211:f181effe5de3 329 void updateURIDataCharacteristic(void) {
rgrover1 189:a23091b54ab5 330 ble.updateCharacteristicValue(uriDataChar.getValueAttribute().getHandle(), uriData, uriDataLength);
rgrover1 211:f181effe5de3 331 }
rgrover1 211:f181effe5de3 332
rgrover1 211:f181effe5de3 333 void updateFlagsCharacteristic(void) {
rgrover1 189:a23091b54ab5 334 ble.updateCharacteristicValue(flagsChar.getValueAttribute().getHandle(), &flags, 1 /* size */);
rgrover1 211:f181effe5de3 335 }
rgrover1 211:f181effe5de3 336
rgrover1 211:f181effe5de3 337 void updateBeaconPeriodCharacteristic(void) {
rgrover1 189:a23091b54ab5 338 ble.updateCharacteristicValue(beaconPeriodChar.getValueAttribute().getHandle(), reinterpret_cast<uint8_t *>(&beaconPeriod), sizeof(uint16_t));
rgrover1 189:a23091b54ab5 339 }
rgrover1 189:a23091b54ab5 340
rgrover1 185:7cd70497aec8 341 private:
rgrover1 185:7cd70497aec8 342 /**
rgrover1 185:7cd70497aec8 343 * For debugging only.
rgrover1 185:7cd70497aec8 344 */
rgrover1 185:7cd70497aec8 345 void dumpEncodedSeviceData() const {
rgrover1 185:7cd70497aec8 346 printf("encoded: '");
rgrover1 185:7cd70497aec8 347 for (unsigned i = 0; i < payloadIndex; i++) {
rgrover1 185:7cd70497aec8 348 printf(" %02x", serviceDataPayload[i]);
rgrover1 185:7cd70497aec8 349 }
rgrover1 185:7cd70497aec8 350 printf("'\r\n");
rgrover1 185:7cd70497aec8 351 }
rgrover1 185:7cd70497aec8 352
rgrover1 171:6092e61690dc 353 private:
rgrover1 199:6b57874115f6 354 static const size_t MAX_SIZEOF_SERVICE_DATA_PAYLOAD = 18; /* Uri Data must be between 0 and 18 bytes in length. */
rgrover1 204:479f81fd5d3b 355 static const size_t MAX_SIZE_URI_DATA_CHAR_VALUE = 48; /* This is chosen arbitrarily. It should be large enough
rgrover1 204:479f81fd5d3b 356 * to hold any reasonable uncompressed URI. */
rgrover1 171:6092e61690dc 357
rgrover1 171:6092e61690dc 358 private:
rgrover1 206:49646c933822 359 BLEDevice &ble;
rgrover1 171:6092e61690dc 360
rgrover1 206:49646c933822 361 size_t payloadIndex;
rgrover1 206:49646c933822 362 uint8_t serviceDataPayload[MAX_SIZEOF_SERVICE_DATA_PAYLOAD];
rgrover1 206:49646c933822 363 bool initSucceeded;
rgrover1 182:d16f8c11816b 364
rgrover1 206:49646c933822 365 bool lockedState;
rgrover1 206:49646c933822 366 uint16_t uriDataLength;
rgrover1 206:49646c933822 367 uint8_t uriData[MAX_SIZE_URI_DATA_CHAR_VALUE];
rgrover1 206:49646c933822 368 uint8_t flags;
rgrover1 206:49646c933822 369 int8_t effectiveTxPower;
rgrover1 206:49646c933822 370 int8_t powerLevels[NUM_POWER_MODES];
rgrover1 206:49646c933822 371 uint16_t beaconPeriod;
rgrover1 206:49646c933822 372 bool resetFlag;
rgrover1 171:6092e61690dc 373
rgrover1 206:49646c933822 374 GattCharacteristic lockedStateChar;
rgrover1 206:49646c933822 375 GattCharacteristic uriDataChar;
rgrover1 206:49646c933822 376 GattCharacteristic flagsChar;
rgrover1 206:49646c933822 377 GattCharacteristic txPowerLevelsChar;
rgrover1 206:49646c933822 378 GattCharacteristic beaconPeriodChar;
rgrover1 206:49646c933822 379 GattCharacteristic resetChar;
rgrover1 171:6092e61690dc 380 };
rgrover1 171:6092e61690dc 381
rgrover1 207:e88130dc254c 382 #endif /* #ifndef __BLE_URI_BEACON_CONFIG_SERVICE_H__*/