Bill Schilit / BLE_API

Improve readability with getHandle inline

Fork of BLE_API by Bluetooth Low Energy

services/URIBeacon2Service.h@182:d16f8c11816b, 2014-11-28 (annotated)

Committer:
rgrover1
Date:
Fri Nov 28 14:11:23 2014 +0000
Revision:
182:d16f8c11816b
Parent:
181:bbb6ce1082c3
Child:
183:41d6ffadba96
Synchronized with git rev 576c2fa6

Author: Rohit Grover

add failed to accommodate.

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 171:6092e61690dc 32
rgrover1 171:6092e61690dc 33 class URIBeacon2Service {
rgrover1 180:afcd2f9c2ada 34 public:
rgrover1 175:4e85f7225f8f 35 enum TXPowerModes_t {
rgrover1 175:4e85f7225f8f 36 TX_POWER_MODE_LOWEST = 0,
rgrover1 175:4e85f7225f8f 37 TX_POWER_MODE_LOW = 1,
rgrover1 175:4e85f7225f8f 38 TX_POWER_MODE_MEDIUM = 2,
rgrover1 175:4e85f7225f8f 39 TX_POWER_MODE_HIGH = 3,
rgrover1 177:17f4b5924fe9 40 NUM_POWER_MODES
rgrover1 175:4e85f7225f8f 41 };
rgrover1 175:4e85f7225f8f 42
rgrover1 181:bbb6ce1082c3 43 /**
rgrover1 181:bbb6ce1082c3 44 * Singleton factory.
rgrover1 181:bbb6ce1082c3 45 *
rgrover1 181:bbb6ce1082c3 46 * @param[ref] ble
rgrover1 181:bbb6ce1082c3 47 * BLEDevice object for the underlying controller.
rgrover1 181:bbb6ce1082c3 48 * @param[in] urldata
rgrover1 181:bbb6ce1082c3 49 * URI as a null-terminated string.
rgrover1 181:bbb6ce1082c3 50 * @param[in] flagsIn
rgrover1 181:bbb6ce1082c3 51 * UriBeacon Flags.
rgrover1 181:bbb6ce1082c3 52 * @param[in] effectiveTxPowerIn
rgrover1 181:bbb6ce1082c3 53 * UriBeacon Tx Power Level in dBm.
rgrover1 181:bbb6ce1082c3 54 * @param[in] beaconPeriodIn
rgrover1 181:bbb6ce1082c3 55 * The period in milliseconds that a UriBeacon packet is
rgrover1 181:bbb6ce1082c3 56 * transmitted. A value of zero disables UriBeacon
rgrover1 181:bbb6ce1082c3 57 * transmissions.
rgrover1 181:bbb6ce1082c3 58 * @return
rgrover1 181:bbb6ce1082c3 59 * Pointer to the singleton uribeacon service if the initialization goes well; else NULL.
rgrover1 181:bbb6ce1082c3 60 */
rgrover1 180:afcd2f9c2ada 61 static URIBeacon2Service *setupService(BLEDevice &ble_, const char *urldata, uint8_t flagsIn = 0, int8_t effectiveTxPowerIn = 0, uint16_t beaconPeriodIn = 1000) {
rgrover1 180:afcd2f9c2ada 62 if ((urldata == NULL) || (strlen(urldata) == 0)) {
rgrover1 180:afcd2f9c2ada 63 return NULL;
rgrover1 171:6092e61690dc 64 }
rgrover1 171:6092e61690dc 65
rgrover1 180:afcd2f9c2ada 66 static URIBeacon2Service service(ble_, urldata, flagsIn, effectiveTxPowerIn, beaconPeriodIn);
rgrover1 182:d16f8c11816b 67 if (!service.failedToAccomodate) {
rgrover1 182:d16f8c11816b 68 return &service;
rgrover1 182:d16f8c11816b 69 }
rgrover1 182:d16f8c11816b 70
rgrover1 182:d16f8c11816b 71 return NULL; /* Oops. Failed to accommodate uridata within the advertising payload. */
rgrover1 171:6092e61690dc 72 }
rgrover1 171:6092e61690dc 73
rgrover1 173:05c4b1cea65f 74 /**
rgrover1 173:05c4b1cea65f 75 * Update flags of the URIBeacon dynamically.
rgrover1 173:05c4b1cea65f 76 *
rgrover1 173:05c4b1cea65f 77 * @param[in] flagsIn
rgrover1 173:05c4b1cea65f 78 *
rgrover1 173:05c4b1cea65f 79 * ### UriBeacon Flags
rgrover1 173:05c4b1cea65f 80 * Bit | Description
rgrover1 173:05c4b1cea65f 81 * :---- | :----------
rgrover1 173:05c4b1cea65f 82 * 0 | Invisible Hint
rgrover1 173:05c4b1cea65f 83 * 1..7 | Reserved for future use. Must be zero.
rgrover1 173:05c4b1cea65f 84 *
rgrover1 173:05c4b1cea65f 85 * The `Invisible Hint` flag is a command for the user-agent that tells
rgrover1 173:05c4b1cea65f 86 * it not to access or display the UriBeacon. This is a guideline only,
rgrover1 173:05c4b1cea65f 87 * and is not a blocking method. User agents may, with user approval,
rgrover1 173:05c4b1cea65f 88 * display invisible beacons.
rgrover1 173:05c4b1cea65f 89 */
rgrover1 171:6092e61690dc 90 void setFlags(uint8_t flagsIn) {
rgrover1 171:6092e61690dc 91 flags = flagsIn;
rgrover1 171:6092e61690dc 92 setup();
rgrover1 171:6092e61690dc 93 }
rgrover1 171:6092e61690dc 94
rgrover1 177:17f4b5924fe9 95 /**
rgrover1 177:17f4b5924fe9 96 * Update the txPower for a particular mode in the powerLevels table.
rgrover1 177:17f4b5924fe9 97 */
rgrover1 177:17f4b5924fe9 98 void setTxPowerLevel(TXPowerModes_t mode, int8_t txPowerIn) {
rgrover1 177:17f4b5924fe9 99 powerLevels[mode] = txPowerIn;
rgrover1 177:17f4b5924fe9 100 }
rgrover1 177:17f4b5924fe9 101
rgrover1 177:17f4b5924fe9 102 /**
rgrover1 177:17f4b5924fe9 103 * Set the effective power mode from one of the values in the powerLevels tables.
rgrover1 177:17f4b5924fe9 104 */
rgrover1 177:17f4b5924fe9 105 void setPowerMode(TXPowerModes_t mode) {
rgrover1 177:17f4b5924fe9 106 effectivePower = powerLevels[mode];
rgrover1 171:6092e61690dc 107 setup();
rgrover1 171:6092e61690dc 108 }
rgrover1 171:6092e61690dc 109
rgrover1 171:6092e61690dc 110 void setBeaconPeriod(uint16_t beaconPeriodIn) {
rgrover1 171:6092e61690dc 111 beaconPeriod = beaconPeriodIn;
rgrover1 171:6092e61690dc 112 setup();
rgrover1 171:6092e61690dc 113 }
rgrover1 171:6092e61690dc 114
rgrover1 180:afcd2f9c2ada 115 private:
rgrover1 180:afcd2f9c2ada 116 URIBeacon2Service(BLEDevice &ble_, const char *urldata, uint8_t flagsIn = 0, int8_t effectiveTxPowerIn = 0, uint16_t beaconPeriodIn = 1000) :
rgrover1 180:afcd2f9c2ada 117 ble(ble_),
rgrover1 180:afcd2f9c2ada 118 payloadIndex(0),
rgrover1 180:afcd2f9c2ada 119 serviceDataPayload(),
rgrover1 182:d16f8c11816b 120 failedToAccomodate(false),
rgrover1 180:afcd2f9c2ada 121 lockedState(false),
rgrover1 180:afcd2f9c2ada 122 uriDataLength(strlen(urldata)),
rgrover1 180:afcd2f9c2ada 123 uriDataValue(),
rgrover1 180:afcd2f9c2ada 124 flags(flagsIn),
rgrover1 180:afcd2f9c2ada 125 effectivePower(effectiveTxPowerIn),
rgrover1 180:afcd2f9c2ada 126 powerLevels(),
rgrover1 180:afcd2f9c2ada 127 beaconPeriod(Gap::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(beaconPeriodIn)),
rgrover1 180:afcd2f9c2ada 128 lockedStateChar(lockedStateCharUUID, reinterpret_cast<uint8_t *>(&lockedState), 1, 1, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ),
rgrover1 180:afcd2f9c2ada 129 uriDataChar(uriDataCharUUID,
rgrover1 180:afcd2f9c2ada 130 uriDataValue,
rgrover1 180:afcd2f9c2ada 131 MAX_SIZE_URI_DATA_CHAR_VALUE,
rgrover1 180:afcd2f9c2ada 132 MAX_SIZE_URI_DATA_CHAR_VALUE,
rgrover1 180:afcd2f9c2ada 133 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE),
rgrover1 180:afcd2f9c2ada 134 flagsChar(flagsCharUUID, &flags, 1, 1, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE),
rgrover1 180:afcd2f9c2ada 135 txPowerLevelsChar(txPowerLevelsCharUUID,
rgrover1 180:afcd2f9c2ada 136 reinterpret_cast<uint8_t *>(powerLevels),
rgrover1 180:afcd2f9c2ada 137 NUM_POWER_MODES * sizeof(int8_t),
rgrover1 180:afcd2f9c2ada 138 NUM_POWER_MODES * sizeof(int8_t),
rgrover1 180:afcd2f9c2ada 139 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE),
rgrover1 180:afcd2f9c2ada 140 beaconPeriodChar(beaconPeriodCharUUID, reinterpret_cast<uint8_t *>(&beaconPeriod), 2, 2,
rgrover1 180:afcd2f9c2ada 141 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE)
rgrover1 180:afcd2f9c2ada 142 {
rgrover1 180:afcd2f9c2ada 143 strncpy(reinterpret_cast<char *>(uriDataValue), urldata, MAX_SIZE_URI_DATA_CHAR_VALUE);
rgrover1 180:afcd2f9c2ada 144
rgrover1 180:afcd2f9c2ada 145 setup();
rgrover1 180:afcd2f9c2ada 146
rgrover1 180:afcd2f9c2ada 147 GattCharacteristic *charTable[] = {&lockedStateChar, &uriDataChar, &flagsChar, &txPowerLevelsChar, &beaconPeriodChar};
rgrover1 180:afcd2f9c2ada 148 GattService beaconControlService(URIBeacon2ControlServiceUUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
rgrover1 180:afcd2f9c2ada 149
rgrover1 180:afcd2f9c2ada 150 ble.addService(beaconControlService);
rgrover1 180:afcd2f9c2ada 151 ble.onDataWritten(this, &URIBeacon2Service::onDataWritten);
rgrover1 180:afcd2f9c2ada 152 }
rgrover1 180:afcd2f9c2ada 153
rgrover1 171:6092e61690dc 154 protected:
rgrover1 171:6092e61690dc 155 /**
rgrover1 171:6092e61690dc 156 * This callback allows the DFU service to receive the initial trigger to
rgrover1 171:6092e61690dc 157 * handover control to the bootloader; but first the application is given a
rgrover1 171:6092e61690dc 158 * chance to clean up.
rgrover1 171:6092e61690dc 159 */
rgrover1 171:6092e61690dc 160 virtual void onDataWritten(const GattCharacteristicWriteCBParams *params) {
rgrover1 171:6092e61690dc 161 if (params->charHandle == uriDataChar.getValueAttribute().getHandle()) {
rgrover1 171:6092e61690dc 162 if (lockedState) { /* When locked, the device isn't allowed to update the uriData characteristic. */
rgrover1 171:6092e61690dc 163 /* Restore GATT database with previous value. */
rgrover1 171:6092e61690dc 164 ble.updateCharacteristicValue(uriDataChar.getValueAttribute().getHandle(), uriDataValue, uriDataLength);
rgrover1 171:6092e61690dc 165 return;
rgrover1 171:6092e61690dc 166 }
rgrover1 171:6092e61690dc 167
rgrover1 171:6092e61690dc 168 /* We don't handle very large writes at the moment. */
rgrover1 171:6092e61690dc 169 if ((params->offset != 0) || (params->len > MAX_SIZE_URI_DATA_CHAR_VALUE)) {
rgrover1 171:6092e61690dc 170 return;
rgrover1 171:6092e61690dc 171 }
rgrover1 171:6092e61690dc 172
rgrover1 171:6092e61690dc 173 uriDataLength = params->len;
rgrover1 171:6092e61690dc 174 memcpy(uriDataValue, params->data, uriDataLength);
rgrover1 171:6092e61690dc 175 } else if (params->charHandle == flagsChar.getValueAttribute().getHandle()) {
rgrover1 178:b6d6a2a11e86 176 if (lockedState) { /* When locked, the device isn't allowed to update the characteristic. */
rgrover1 171:6092e61690dc 177 /* Restore GATT database with previous value. */
rgrover1 171:6092e61690dc 178 ble.updateCharacteristicValue(flagsChar.getValueAttribute().getHandle(), &flags, 1 /* size */);
rgrover1 171:6092e61690dc 179 return;
rgrover1 171:6092e61690dc 180 } else {
rgrover1 171:6092e61690dc 181 flags = *(params->data);
rgrover1 171:6092e61690dc 182 }
rgrover1 178:b6d6a2a11e86 183 } else if (params->charHandle == txPowerLevelsChar.getValueAttribute().getHandle()) {
rgrover1 178:b6d6a2a11e86 184 if (lockedState) { /* When locked, the device isn't allowed to update the characteristic. */
rgrover1 178:b6d6a2a11e86 185 /* Restore GATT database with previous value. */
rgrover1 178:b6d6a2a11e86 186 ble.updateCharacteristicValue(txPowerLevelsChar.getValueAttribute().getHandle(), reinterpret_cast<uint8_t *>(powerLevels), NUM_POWER_MODES * sizeof(int8_t));
rgrover1 178:b6d6a2a11e86 187 return;
rgrover1 178:b6d6a2a11e86 188 } else {
rgrover1 178:b6d6a2a11e86 189 memcpy(powerLevels, params->data, NUM_POWER_MODES * sizeof(int8_t));
rgrover1 178:b6d6a2a11e86 190 }
rgrover1 171:6092e61690dc 191 } else if (params->charHandle == beaconPeriodChar.getValueAttribute().getHandle()) {
rgrover1 178:b6d6a2a11e86 192 if (lockedState) { /* When locked, the device isn't allowed to update the characteristic. */
rgrover1 171:6092e61690dc 193 /* Restore GATT database with previous value. */
rgrover1 171:6092e61690dc 194 ble.updateCharacteristicValue(beaconPeriodChar.getValueAttribute().getHandle(), (uint8_t *)&beaconPeriod, 2 /* size */);
rgrover1 171:6092e61690dc 195 return;
rgrover1 171:6092e61690dc 196 } else {
rgrover1 171:6092e61690dc 197 beaconPeriod = *((uint16_t *)(params->data));
rgrover1 171:6092e61690dc 198 }
rgrover1 171:6092e61690dc 199 }
rgrover1 171:6092e61690dc 200 setup();
rgrover1 171:6092e61690dc 201 ble.setAdvertisingPayload();
rgrover1 171:6092e61690dc 202 }
rgrover1 171:6092e61690dc 203
rgrover1 171:6092e61690dc 204 /**
rgrover1 171:6092e61690dc 205 * For debugging only.
rgrover1 171:6092e61690dc 206 */
rgrover1 171:6092e61690dc 207 void dumpEncodedSeviceData() const {
rgrover1 171:6092e61690dc 208 printf("encoded: '");
rgrover1 171:6092e61690dc 209 for (unsigned i = 0; i < payloadIndex; i++) {
rgrover1 171:6092e61690dc 210 printf(" %02x", serviceDataPayload[i]);
rgrover1 171:6092e61690dc 211 }
rgrover1 171:6092e61690dc 212 printf("'\r\n");
rgrover1 171:6092e61690dc 213 }
rgrover1 171:6092e61690dc 214
rgrover1 171:6092e61690dc 215 private:
rgrover1 171:6092e61690dc 216 void setup(void) {
rgrover1 171:6092e61690dc 217 const uint8_t BEACON_UUID[] = {0xD8, 0xFE};
rgrover1 171:6092e61690dc 218
rgrover1 171:6092e61690dc 219 payloadIndex = 0;
rgrover1 171:6092e61690dc 220 serviceDataPayload[payloadIndex++] = BEACON_UUID[0];
rgrover1 171:6092e61690dc 221 serviceDataPayload[payloadIndex++] = BEACON_UUID[1];
rgrover1 171:6092e61690dc 222 serviceDataPayload[payloadIndex++] = flags;
rgrover1 174:5ae7781362b6 223 serviceDataPayload[payloadIndex++] = effectivePower;
rgrover1 171:6092e61690dc 224
rgrover1 171:6092e61690dc 225 const char *urlData = reinterpret_cast<char *>(uriDataValue);
rgrover1 171:6092e61690dc 226 size_t sizeofURLData = uriDataLength;
rgrover1 171:6092e61690dc 227 size_t encodedBytes = encodeURISchemePrefix(urlData, sizeofURLData) + encodeURI(urlData, sizeofURLData);
rgrover1 171:6092e61690dc 228
rgrover1 171:6092e61690dc 229 ble.clearAdvertisingPayload();
rgrover1 171:6092e61690dc 230 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, BEACON_UUID, sizeof(BEACON_UUID));
rgrover1 171:6092e61690dc 231 ble.accumulateAdvertisingPayload(GapAdvertisingData::SERVICE_DATA, serviceDataPayload, encodedBytes + 4);
rgrover1 171:6092e61690dc 232
rgrover1 171:6092e61690dc 233 ble.setAdvertisingInterval(beaconPeriod);
rgrover1 174:5ae7781362b6 234 ble.setTxPower(effectivePower);
rgrover1 171:6092e61690dc 235 }
rgrover1 171:6092e61690dc 236
rgrover1 171:6092e61690dc 237 size_t encodeURISchemePrefix(const char *&urldata, size_t &sizeofURLData) {
rgrover1 171:6092e61690dc 238 const char *prefixes[] = {
rgrover1 171:6092e61690dc 239 "http://www.",
rgrover1 171:6092e61690dc 240 "https://www.",
rgrover1 171:6092e61690dc 241 "http://",
rgrover1 171:6092e61690dc 242 "https://",
rgrover1 171:6092e61690dc 243 "urn:uuid:"
rgrover1 171:6092e61690dc 244 };
rgrover1 171:6092e61690dc 245
rgrover1 171:6092e61690dc 246 size_t encodedBytes = 0;
rgrover1 171:6092e61690dc 247 const size_t NUM_PREFIXES = sizeof(prefixes) / sizeof(char *);
rgrover1 171:6092e61690dc 248 for (unsigned i = 0; i < NUM_PREFIXES; i++) {
rgrover1 171:6092e61690dc 249 size_t prefixLen = strlen(prefixes[i]);
rgrover1 171:6092e61690dc 250 if (strncmp(urldata, prefixes[i], prefixLen) == 0) {
rgrover1 171:6092e61690dc 251 serviceDataPayload[payloadIndex++] = i;
rgrover1 171:6092e61690dc 252 encodedBytes = 1;
rgrover1 171:6092e61690dc 253
rgrover1 171:6092e61690dc 254 urldata += prefixLen;
rgrover1 171:6092e61690dc 255 sizeofURLData -= prefixLen;
rgrover1 171:6092e61690dc 256 break;
rgrover1 171:6092e61690dc 257 }
rgrover1 171:6092e61690dc 258 }
rgrover1 171:6092e61690dc 259
rgrover1 171:6092e61690dc 260 return encodedBytes;
rgrover1 171:6092e61690dc 261 }
rgrover1 171:6092e61690dc 262
rgrover1 171:6092e61690dc 263 size_t encodeURI(const char *urldata, size_t sizeofURLData) {
rgrover1 171:6092e61690dc 264 const char *suffixes[] = {
rgrover1 171:6092e61690dc 265 ".com/",
rgrover1 171:6092e61690dc 266 ".org/",
rgrover1 171:6092e61690dc 267 ".edu/",
rgrover1 171:6092e61690dc 268 ".net/",
rgrover1 171:6092e61690dc 269 ".info/",
rgrover1 171:6092e61690dc 270 ".biz/",
rgrover1 171:6092e61690dc 271 ".gov/",
rgrover1 171:6092e61690dc 272 ".com",
rgrover1 171:6092e61690dc 273 ".org",
rgrover1 171:6092e61690dc 274 ".edu",
rgrover1 171:6092e61690dc 275 ".net",
rgrover1 171:6092e61690dc 276 ".info",
rgrover1 171:6092e61690dc 277 ".biz",
rgrover1 171:6092e61690dc 278 ".gov"
rgrover1 171:6092e61690dc 279 };
rgrover1 171:6092e61690dc 280 const size_t NUM_SUFFIXES = sizeof(suffixes) / sizeof(char *);
rgrover1 171:6092e61690dc 281
rgrover1 171:6092e61690dc 282 size_t encodedBytes = 0;
rgrover1 171:6092e61690dc 283 while (sizeofURLData && (payloadIndex < MAX_SIZEOF_SERVICE_DATA_PAYLOAD)) {
rgrover1 171:6092e61690dc 284 /* check for suffix match */
rgrover1 171:6092e61690dc 285 unsigned i;
rgrover1 171:6092e61690dc 286 for (i = 0; i < NUM_SUFFIXES; i++) {
rgrover1 171:6092e61690dc 287 size_t suffixLen = strlen(suffixes[i]);
rgrover1 171:6092e61690dc 288 if ((suffixLen == 0) || (sizeofURLData < suffixLen)) {
rgrover1 171:6092e61690dc 289 continue;
rgrover1 171:6092e61690dc 290 }
rgrover1 171:6092e61690dc 291
rgrover1 171:6092e61690dc 292 if (strncmp(urldata, suffixes[i], suffixLen) == 0) {
rgrover1 171:6092e61690dc 293 serviceDataPayload[payloadIndex++] = i;
rgrover1 171:6092e61690dc 294 ++encodedBytes;
rgrover1 171:6092e61690dc 295 urldata += suffixLen;
rgrover1 171:6092e61690dc 296 sizeofURLData -= suffixLen;
rgrover1 171:6092e61690dc 297 break; /* from the for loop for checking against suffixes */
rgrover1 171:6092e61690dc 298 }
rgrover1 171:6092e61690dc 299 }
rgrover1 171:6092e61690dc 300 /* This is the default case where we've got an ordinary character which doesn't match a suffix. */
rgrover1 171:6092e61690dc 301 if (i == NUM_SUFFIXES) {
rgrover1 171:6092e61690dc 302 serviceDataPayload[payloadIndex++] = *urldata;
rgrover1 171:6092e61690dc 303 ++encodedBytes;
rgrover1 171:6092e61690dc 304 ++urldata;
rgrover1 171:6092e61690dc 305 --sizeofURLData;
rgrover1 171:6092e61690dc 306 }
rgrover1 171:6092e61690dc 307 }
rgrover1 182:d16f8c11816b 308 if ((payloadIndex == MAX_SIZEOF_SERVICE_DATA_PAYLOAD) && (sizeofURLData != 0)) {
rgrover1 182:d16f8c11816b 309 failedToAccomodate = true;
rgrover1 182:d16f8c11816b 310 }
rgrover1 171:6092e61690dc 311
rgrover1 171:6092e61690dc 312 return encodedBytes;
rgrover1 171:6092e61690dc 313 }
rgrover1 171:6092e61690dc 314
rgrover1 171:6092e61690dc 315 private:
rgrover1 171:6092e61690dc 316 static const size_t MAX_SIZEOF_SERVICE_DATA_PAYLOAD = 27;
rgrover1 171:6092e61690dc 317 static const size_t MAX_SIZE_URI_DATA_CHAR_VALUE = 48;
rgrover1 171:6092e61690dc 318
rgrover1 171:6092e61690dc 319 private:
rgrover1 171:6092e61690dc 320 BLEDevice &ble;
rgrover1 171:6092e61690dc 321
rgrover1 171:6092e61690dc 322 size_t payloadIndex;
rgrover1 171:6092e61690dc 323 uint8_t serviceDataPayload[MAX_SIZEOF_SERVICE_DATA_PAYLOAD];
rgrover1 182:d16f8c11816b 324 bool failedToAccomodate;
rgrover1 182:d16f8c11816b 325
rgrover1 171:6092e61690dc 326 bool lockedState;
rgrover1 171:6092e61690dc 327 uint16_t uriDataLength;
rgrover1 171:6092e61690dc 328 uint8_t uriDataValue[MAX_SIZE_URI_DATA_CHAR_VALUE];
rgrover1 171:6092e61690dc 329 uint8_t flags;
rgrover1 174:5ae7781362b6 330 int8_t effectivePower;
rgrover1 177:17f4b5924fe9 331 int8_t powerLevels[NUM_POWER_MODES];
rgrover1 171:6092e61690dc 332 uint16_t beaconPeriod;
rgrover1 171:6092e61690dc 333
rgrover1 171:6092e61690dc 334 GattCharacteristic lockedStateChar;
rgrover1 171:6092e61690dc 335 GattCharacteristic uriDataChar;
rgrover1 171:6092e61690dc 336 GattCharacteristic flagsChar;
rgrover1 178:b6d6a2a11e86 337 GattCharacteristic txPowerLevelsChar;
rgrover1 171:6092e61690dc 338 GattCharacteristic beaconPeriodChar;
rgrover1 171:6092e61690dc 339 };
rgrover1 171:6092e61690dc 340
rgrover1 171:6092e61690dc 341 #endif /* #ifndef __BLE_URI_BEACON_2_SERVICE_H__*/