Sam Musso / BLE_API

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Fork of BLE_API by Bluetooth Low Energy

services/URIBeaconConfigService.h@224:c55213f24647, 2014-12-01 (annotated)

Committer:
rgrover1
Date:
Mon Dec 01 14:31:20 2014 +0000
Revision:
224:c55213f24647
Parent:
223:01a71f5e0ce4
Child:
225:f6cbfd817d16
Synchronized with git rev b940e50a

Author: Rohit Grover

simplify construction of TxPowerLevelsChar

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 218:8ae02569fab9 31 const uint8_t txPowerModeCharUUID[] = UUID_INITIALIZER_LIST(0x20, 0x87);
rgrover1 171:6092e61690dc 32 const uint8_t beaconPeriodCharUUID[] = UUID_INITIALIZER_LIST(0x20, 0x88);
rgrover1 189:a23091b54ab5 33 const uint8_t resetCharUUID[] = UUID_INITIALIZER_LIST(0x20, 0x89);
rgrover1 171:6092e61690dc 34
rgrover1 207:e88130dc254c 35 class URIBeaconConfigService {
rgrover1 180:afcd2f9c2ada 36 public:
rgrover1 175:4e85f7225f8f 37 enum TXPowerModes_t {
rgrover1 175:4e85f7225f8f 38 TX_POWER_MODE_LOWEST = 0,
rgrover1 175:4e85f7225f8f 39 TX_POWER_MODE_LOW = 1,
rgrover1 175:4e85f7225f8f 40 TX_POWER_MODE_MEDIUM = 2,
rgrover1 175:4e85f7225f8f 41 TX_POWER_MODE_HIGH = 3,
rgrover1 177:17f4b5924fe9 42 NUM_POWER_MODES
rgrover1 175:4e85f7225f8f 43 };
rgrover1 175:4e85f7225f8f 44
rgrover1 181:bbb6ce1082c3 45 /**
rgrover1 181:bbb6ce1082c3 46 * @param[ref] ble
rgrover1 181:bbb6ce1082c3 47 * BLEDevice object for the underlying controller.
rgrover1 208:88a3a58769bf 48 * @param[in] uridata
rgrover1 181:bbb6ce1082c3 49 * URI as a null-terminated string.
rgrover1 181:bbb6ce1082c3 50 * @param[in] flagsIn
rgrover1 181:bbb6ce1082c3 51 * UriBeacon Flags.
rgrover1 218:8ae02569fab9 52 * @param[in] powerLevels[]
rgrover1 218:8ae02569fab9 53 * Table of UriBeacon Tx Power Levels in dBm.
rgrover1 218:8ae02569fab9 54 * @param[in] powerMode
rgrover1 218:8ae02569fab9 55 * Currently effective power mode.
rgrover1 181:bbb6ce1082c3 56 * @param[in] beaconPeriodIn
rgrover1 181:bbb6ce1082c3 57 * The period in milliseconds that a UriBeacon packet is
rgrover1 181:bbb6ce1082c3 58 * transmitted. A value of zero disables UriBeacon
rgrover1 181:bbb6ce1082c3 59 * transmissions.
rgrover1 181:bbb6ce1082c3 60 */
rgrover1 218:8ae02569fab9 61 URIBeaconConfigService(BLEDevice &bleIn,
rgrover1 218:8ae02569fab9 62 const char *uriDataIn,
rgrover1 222:33b04c693e83 63 uint8_t flagsIn = 0,
rgrover1 218:8ae02569fab9 64 const int8_t powerLevelsIn[NUM_POWER_MODES] = NULL,
rgrover1 222:33b04c693e83 65 TXPowerModes_t powerModeIn = TX_POWER_MODE_LOW,
rgrover1 222:33b04c693e83 66 uint16_t beaconPeriodIn = 1000) :
rgrover1 192:3fd3dcf49005 67 ble(bleIn),
rgrover1 192:3fd3dcf49005 68 payloadIndex(0),
rgrover1 192:3fd3dcf49005 69 serviceDataPayload(),
rgrover1 192:3fd3dcf49005 70 initSucceeded(false),
rgrover1 192:3fd3dcf49005 71 lockedState(false),
rgrover1 192:3fd3dcf49005 72 uriDataLength(0),
rgrover1 192:3fd3dcf49005 73 uriData(),
rgrover1 192:3fd3dcf49005 74 flags(flagsIn),
rgrover1 192:3fd3dcf49005 75 powerLevels(),
rgrover1 201:9bb7b3f45c20 76 beaconPeriod(beaconPeriodIn),
rgrover1 192:3fd3dcf49005 77 lockedStateChar(lockedStateCharUUID, reinterpret_cast<uint8_t *>(&lockedState), 1, 1, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ),
rgrover1 215:f9d0169b9c28 78 uriDataChar(uriDataCharUUID, uriData, MAX_SIZE_URI_DATA_CHAR_VALUE, MAX_SIZE_URI_DATA_CHAR_VALUE,
rgrover1 215:f9d0169b9c28 79 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ |GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE),
rgrover1 192:3fd3dcf49005 80 flagsChar(flagsCharUUID, &flags, 1, 1, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE),
rgrover1 224:c55213f24647 81 txPowerLevelsChar(txPowerLevelsCharUUID, reinterpret_cast<uint8_t *>(powerLevels), sizeof(powerLevels), sizeof(powerLevels),
rgrover1 192:3fd3dcf49005 82 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE),
rgrover1 218:8ae02569fab9 83 txPowerModeChar(txPowerModeCharUUID, reinterpret_cast<uint8_t *>(&txPowerMode), sizeof(uint8_t), sizeof(uint8_t),
rgrover1 218:8ae02569fab9 84 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE),
rgrover1 192:3fd3dcf49005 85 beaconPeriodChar(beaconPeriodCharUUID, reinterpret_cast<uint8_t *>(&beaconPeriod), 2, 2,
rgrover1 192:3fd3dcf49005 86 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE),
rgrover1 215:f9d0169b9c28 87 resetChar(resetCharUUID, reinterpret_cast<uint8_t *>(&resetFlag), 1, 1, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE)
rgrover1 192:3fd3dcf49005 88 {
rgrover1 194:669eced4cd5e 89 if ((uriDataIn == NULL) || ((uriDataLength = strlen(uriDataIn)) == 0) || (uriDataLength > MAX_SIZE_URI_DATA_CHAR_VALUE)) {
rgrover1 192:3fd3dcf49005 90 return;
rgrover1 192:3fd3dcf49005 91 }
rgrover1 194:669eced4cd5e 92 strcpy(reinterpret_cast<char *>(uriData), uriDataIn);
rgrover1 192:3fd3dcf49005 93
rgrover1 218:8ae02569fab9 94 if (powerModeIn != NULL) {
rgrover1 218:8ae02569fab9 95 memcpy(powerLevels, powerLevelsIn, sizeof(powerLevels));
rgrover1 218:8ae02569fab9 96 updateTxPowerLevelsCharacteristic();
rgrover1 218:8ae02569fab9 97 }
rgrover1 218:8ae02569fab9 98
rgrover1 210:0c14030d1bd0 99 configureGAP();
rgrover1 171:6092e61690dc 100
rgrover1 192:3fd3dcf49005 101 GattCharacteristic *charTable[] = {&lockedStateChar, &uriDataChar, &flagsChar, &txPowerLevelsChar, &beaconPeriodChar, &resetChar};
rgrover1 192:3fd3dcf49005 102 GattService beaconControlService(URIBeacon2ControlServiceUUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
rgrover1 182:d16f8c11816b 103
rgrover1 192:3fd3dcf49005 104 ble.addService(beaconControlService);
rgrover1 207:e88130dc254c 105 ble.onDataWritten(this, &URIBeaconConfigService::onDataWritten);
rgrover1 192:3fd3dcf49005 106 }
rgrover1 192:3fd3dcf49005 107
rgrover1 193:ac2feceb7e87 108 bool configuredSuccessfully(void) const {
rgrover1 192:3fd3dcf49005 109 return initSucceeded;
rgrover1 171:6092e61690dc 110 }
rgrover1 171:6092e61690dc 111
rgrover1 173:05c4b1cea65f 112 /**
rgrover1 196:febbd68b1095 113 * Please note that the following public APIs are offered to allow modifying
rgrover1 196:febbd68b1095 114 * the service programmatically. It is also possible to do so over BLE GATT
rgrover1 196:febbd68b1095 115 * transactions.
rgrover1 196:febbd68b1095 116 */
rgrover1 196:febbd68b1095 117 public:
rgrover1 196:febbd68b1095 118 /**
rgrover1 173:05c4b1cea65f 119 * Update flags of the URIBeacon dynamically.
rgrover1 173:05c4b1cea65f 120 *
rgrover1 173:05c4b1cea65f 121 * @param[in] flagsIn
rgrover1 173:05c4b1cea65f 122 *
rgrover1 173:05c4b1cea65f 123 * ### UriBeacon Flags
rgrover1 173:05c4b1cea65f 124 * Bit | Description
rgrover1 173:05c4b1cea65f 125 * :---- | :----------
rgrover1 173:05c4b1cea65f 126 * 0 | Invisible Hint
rgrover1 173:05c4b1cea65f 127 * 1..7 | Reserved for future use. Must be zero.
rgrover1 173:05c4b1cea65f 128 *
rgrover1 173:05c4b1cea65f 129 * The `Invisible Hint` flag is a command for the user-agent that tells
rgrover1 173:05c4b1cea65f 130 * it not to access or display the UriBeacon. This is a guideline only,
rgrover1 173:05c4b1cea65f 131 * and is not a blocking method. User agents may, with user approval,
rgrover1 173:05c4b1cea65f 132 * display invisible beacons.
rgrover1 173:05c4b1cea65f 133 */
rgrover1 171:6092e61690dc 134 void setFlags(uint8_t flagsIn) {
rgrover1 171:6092e61690dc 135 flags = flagsIn;
rgrover1 210:0c14030d1bd0 136 configureGAP();
rgrover1 211:f181effe5de3 137 updateFlagsCharacteristic();
rgrover1 171:6092e61690dc 138 }
rgrover1 171:6092e61690dc 139
rgrover1 177:17f4b5924fe9 140 /**
rgrover1 219:5603d539120c 141 * Update the txPowerLevels table.
rgrover1 177:17f4b5924fe9 142 */
rgrover1 219:5603d539120c 143 void setTxPowerLevels(const int8_t powerLevelsIn[NUM_POWER_MODES]) {
rgrover1 219:5603d539120c 144 memcpy(powerLevels, powerLevelsIn, sizeof(powerLevels));
rgrover1 223:01a71f5e0ce4 145 configureGAP();
rgrover1 219:5603d539120c 146 updateTxPowerLevelsCharacteristic();
rgrover1 177:17f4b5924fe9 147 }
rgrover1 177:17f4b5924fe9 148
rgrover1 177:17f4b5924fe9 149 /**
rgrover1 177:17f4b5924fe9 150 * Set the effective power mode from one of the values in the powerLevels tables.
rgrover1 177:17f4b5924fe9 151 */
rgrover1 219:5603d539120c 152 void setTxPowerMode(TXPowerModes_t mode) {
rgrover1 218:8ae02569fab9 153 txPowerMode = mode;
rgrover1 210:0c14030d1bd0 154 configureGAP();
rgrover1 218:8ae02569fab9 155 updateTxPowerModeCharacteristic();
rgrover1 171:6092e61690dc 156 }
rgrover1 171:6092e61690dc 157
rgrover1 183:41d6ffadba96 158 /**
rgrover1 183:41d6ffadba96 159 * The period in milliseconds that a UriBeacon packet is transmitted.
rgrover1 183:41d6ffadba96 160 *
rgrover1 183:41d6ffadba96 161 * @Note: A value of zero disables UriBeacon transmissions.
rgrover1 183:41d6ffadba96 162 */
rgrover1 171:6092e61690dc 163 void setBeaconPeriod(uint16_t beaconPeriodIn) {
rgrover1 171:6092e61690dc 164 beaconPeriod = beaconPeriodIn;
rgrover1 210:0c14030d1bd0 165 configureGAP();
rgrover1 211:f181effe5de3 166 updateBeaconPeriodCharacteristic();
rgrover1 171:6092e61690dc 167 }
rgrover1 171:6092e61690dc 168
rgrover1 196:febbd68b1095 169 private:
rgrover1 186:ce34008cea95 170 /**
rgrover1 186:ce34008cea95 171 * Setup the advertisement payload and GAP settings.
rgrover1 186:ce34008cea95 172 */
rgrover1 210:0c14030d1bd0 173 void configureGAP(void) {
rgrover1 171:6092e61690dc 174 const uint8_t BEACON_UUID[] = {0xD8, 0xFE};
rgrover1 171:6092e61690dc 175
rgrover1 206:49646c933822 176 payloadIndex = 0;
rgrover1 171:6092e61690dc 177 serviceDataPayload[payloadIndex++] = BEACON_UUID[0];
rgrover1 171:6092e61690dc 178 serviceDataPayload[payloadIndex++] = BEACON_UUID[1];
rgrover1 171:6092e61690dc 179 serviceDataPayload[payloadIndex++] = flags;
rgrover1 218:8ae02569fab9 180 serviceDataPayload[payloadIndex++] = powerLevels[txPowerMode];
rgrover1 171:6092e61690dc 181
rgrover1 206:49646c933822 182 const char *urlData = reinterpret_cast<char *>(uriData);
rgrover1 206:49646c933822 183 size_t sizeofURLData = uriDataLength;
rgrover1 206:49646c933822 184 size_t encodedBytes = encodeURISchemePrefix(urlData, sizeofURLData) + encodeURI(urlData, sizeofURLData);
rgrover1 171:6092e61690dc 185
rgrover1 171:6092e61690dc 186 ble.clearAdvertisingPayload();
rgrover1 171:6092e61690dc 187 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, BEACON_UUID, sizeof(BEACON_UUID));
rgrover1 171:6092e61690dc 188 ble.accumulateAdvertisingPayload(GapAdvertisingData::SERVICE_DATA, serviceDataPayload, encodedBytes + 4);
rgrover1 171:6092e61690dc 189
rgrover1 201:9bb7b3f45c20 190 ble.setAdvertisingInterval(Gap::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(beaconPeriod));
rgrover1 218:8ae02569fab9 191 ble.setTxPower(powerLevels[txPowerMode]);
rgrover1 171:6092e61690dc 192 }
rgrover1 171:6092e61690dc 193
rgrover1 171:6092e61690dc 194 size_t encodeURISchemePrefix(const char *&urldata, size_t &sizeofURLData) {
rgrover1 213:ac3b745af1d0 195 if (!sizeofURLData) {
rgrover1 213:ac3b745af1d0 196 return 0;
rgrover1 213:ac3b745af1d0 197 }
rgrover1 213:ac3b745af1d0 198
rgrover1 171:6092e61690dc 199 const char *prefixes[] = {
rgrover1 171:6092e61690dc 200 "http://www.",
rgrover1 171:6092e61690dc 201 "https://www.",
rgrover1 171:6092e61690dc 202 "http://",
rgrover1 171:6092e61690dc 203 "https://",
rgrover1 171:6092e61690dc 204 "urn:uuid:"
rgrover1 171:6092e61690dc 205 };
rgrover1 171:6092e61690dc 206
rgrover1 206:49646c933822 207 size_t encodedBytes = 0;
rgrover1 171:6092e61690dc 208 const size_t NUM_PREFIXES = sizeof(prefixes) / sizeof(char *);
rgrover1 171:6092e61690dc 209 for (unsigned i = 0; i < NUM_PREFIXES; i++) {
rgrover1 171:6092e61690dc 210 size_t prefixLen = strlen(prefixes[i]);
rgrover1 171:6092e61690dc 211 if (strncmp(urldata, prefixes[i], prefixLen) == 0) {
rgrover1 171:6092e61690dc 212 serviceDataPayload[payloadIndex++] = i;
rgrover1 206:49646c933822 213 encodedBytes = 1;
rgrover1 171:6092e61690dc 214
rgrover1 206:49646c933822 215 urldata += prefixLen;
rgrover1 171:6092e61690dc 216 sizeofURLData -= prefixLen;
rgrover1 171:6092e61690dc 217 break;
rgrover1 171:6092e61690dc 218 }
rgrover1 171:6092e61690dc 219 }
rgrover1 171:6092e61690dc 220
rgrover1 171:6092e61690dc 221 return encodedBytes;
rgrover1 171:6092e61690dc 222 }
rgrover1 171:6092e61690dc 223
rgrover1 171:6092e61690dc 224 size_t encodeURI(const char *urldata, size_t sizeofURLData) {
rgrover1 171:6092e61690dc 225 const char *suffixes[] = {
rgrover1 171:6092e61690dc 226 ".com/",
rgrover1 171:6092e61690dc 227 ".org/",
rgrover1 171:6092e61690dc 228 ".edu/",
rgrover1 171:6092e61690dc 229 ".net/",
rgrover1 171:6092e61690dc 230 ".info/",
rgrover1 171:6092e61690dc 231 ".biz/",
rgrover1 171:6092e61690dc 232 ".gov/",
rgrover1 171:6092e61690dc 233 ".com",
rgrover1 171:6092e61690dc 234 ".org",
rgrover1 171:6092e61690dc 235 ".edu",
rgrover1 171:6092e61690dc 236 ".net",
rgrover1 171:6092e61690dc 237 ".info",
rgrover1 171:6092e61690dc 238 ".biz",
rgrover1 171:6092e61690dc 239 ".gov"
rgrover1 171:6092e61690dc 240 };
rgrover1 171:6092e61690dc 241 const size_t NUM_SUFFIXES = sizeof(suffixes) / sizeof(char *);
rgrover1 171:6092e61690dc 242
rgrover1 171:6092e61690dc 243 size_t encodedBytes = 0;
rgrover1 171:6092e61690dc 244 while (sizeofURLData && (payloadIndex < MAX_SIZEOF_SERVICE_DATA_PAYLOAD)) {
rgrover1 171:6092e61690dc 245 /* check for suffix match */
rgrover1 171:6092e61690dc 246 unsigned i;
rgrover1 171:6092e61690dc 247 for (i = 0; i < NUM_SUFFIXES; i++) {
rgrover1 171:6092e61690dc 248 size_t suffixLen = strlen(suffixes[i]);
rgrover1 171:6092e61690dc 249 if ((suffixLen == 0) || (sizeofURLData < suffixLen)) {
rgrover1 171:6092e61690dc 250 continue;
rgrover1 171:6092e61690dc 251 }
rgrover1 171:6092e61690dc 252
rgrover1 171:6092e61690dc 253 if (strncmp(urldata, suffixes[i], suffixLen) == 0) {
rgrover1 171:6092e61690dc 254 serviceDataPayload[payloadIndex++] = i;
rgrover1 171:6092e61690dc 255 ++encodedBytes;
rgrover1 171:6092e61690dc 256 urldata += suffixLen;
rgrover1 171:6092e61690dc 257 sizeofURLData -= suffixLen;
rgrover1 171:6092e61690dc 258 break; /* from the for loop for checking against suffixes */
rgrover1 171:6092e61690dc 259 }
rgrover1 171:6092e61690dc 260 }
rgrover1 171:6092e61690dc 261 /* This is the default case where we've got an ordinary character which doesn't match a suffix. */
rgrover1 171:6092e61690dc 262 if (i == NUM_SUFFIXES) {
rgrover1 171:6092e61690dc 263 serviceDataPayload[payloadIndex++] = *urldata;
rgrover1 171:6092e61690dc 264 ++encodedBytes;
rgrover1 171:6092e61690dc 265 ++urldata;
rgrover1 171:6092e61690dc 266 --sizeofURLData;
rgrover1 171:6092e61690dc 267 }
rgrover1 171:6092e61690dc 268 }
rgrover1 192:3fd3dcf49005 269 if (sizeofURLData == 0) {
rgrover1 192:3fd3dcf49005 270 initSucceeded = true;
rgrover1 182:d16f8c11816b 271 }
rgrover1 171:6092e61690dc 272
rgrover1 171:6092e61690dc 273 return encodedBytes;
rgrover1 171:6092e61690dc 274 }
rgrover1 171:6092e61690dc 275
rgrover1 203:7b5178d2fa03 276 void onDataWritten(const GattCharacteristicWriteCBParams *params) {
rgrover1 185:7cd70497aec8 277 if (params->charHandle == uriDataChar.getValueAttribute().getHandle()) {
rgrover1 185:7cd70497aec8 278 if (lockedState) { /* When locked, the device isn't allowed to update the uriData characteristic. */
rgrover1 185:7cd70497aec8 279 /* Restore GATT database with previous value. */
rgrover1 211:f181effe5de3 280 updateURIDataCharacteristic();
rgrover1 185:7cd70497aec8 281 return;
rgrover1 185:7cd70497aec8 282 }
rgrover1 185:7cd70497aec8 283
rgrover1 185:7cd70497aec8 284 /* We don't handle very large writes at the moment. */
rgrover1 185:7cd70497aec8 285 if ((params->offset != 0) || (params->len > MAX_SIZE_URI_DATA_CHAR_VALUE)) {
rgrover1 185:7cd70497aec8 286 return;
rgrover1 185:7cd70497aec8 287 }
rgrover1 185:7cd70497aec8 288
rgrover1 185:7cd70497aec8 289 uriDataLength = params->len;
rgrover1 187:057c547facd2 290 memcpy(uriData, params->data, uriDataLength);
rgrover1 185:7cd70497aec8 291 } else if (params->charHandle == flagsChar.getValueAttribute().getHandle()) {
rgrover1 185:7cd70497aec8 292 if (lockedState) { /* When locked, the device isn't allowed to update the characteristic. */
rgrover1 185:7cd70497aec8 293 /* Restore GATT database with previous value. */
rgrover1 211:f181effe5de3 294 updateFlagsCharacteristic();
rgrover1 185:7cd70497aec8 295 return;
rgrover1 185:7cd70497aec8 296 } else {
rgrover1 185:7cd70497aec8 297 flags = *(params->data);
rgrover1 185:7cd70497aec8 298 }
rgrover1 185:7cd70497aec8 299 } else if (params->charHandle == txPowerLevelsChar.getValueAttribute().getHandle()) {
rgrover1 185:7cd70497aec8 300 if (lockedState) { /* When locked, the device isn't allowed to update the characteristic. */
rgrover1 185:7cd70497aec8 301 /* Restore GATT database with previous value. */
rgrover1 221:f813cddc145b 302 updateTxPowerLevelsCharacteristic();
rgrover1 185:7cd70497aec8 303 return;
rgrover1 185:7cd70497aec8 304 } else {
rgrover1 185:7cd70497aec8 305 memcpy(powerLevels, params->data, NUM_POWER_MODES * sizeof(int8_t));
rgrover1 185:7cd70497aec8 306 }
rgrover1 221:f813cddc145b 307 } else if (params->charHandle == txPowerModeChar.getValueAttribute().getHandle()) {
rgrover1 221:f813cddc145b 308 if (lockedState) { /* When locked, the device isn't allowed to update the characteristic. */
rgrover1 221:f813cddc145b 309 /* Restore GATT database with previous value. */
rgrover1 221:f813cddc145b 310 updateTxPowerModeCharacteristic();
rgrover1 221:f813cddc145b 311 return;
rgrover1 221:f813cddc145b 312 } else {
rgrover1 221:f813cddc145b 313 txPowerMode = *reinterpret_cast<const TXPowerModes_t *>(params->data);
rgrover1 221:f813cddc145b 314 }
rgrover1 185:7cd70497aec8 315 } else if (params->charHandle == beaconPeriodChar.getValueAttribute().getHandle()) {
rgrover1 185:7cd70497aec8 316 if (lockedState) { /* When locked, the device isn't allowed to update the characteristic. */
rgrover1 185:7cd70497aec8 317 /* Restore GATT database with previous value. */
rgrover1 211:f181effe5de3 318 updateBeaconPeriodCharacteristic();
rgrover1 185:7cd70497aec8 319 return;
rgrover1 185:7cd70497aec8 320 } else {
rgrover1 185:7cd70497aec8 321 beaconPeriod = *((uint16_t *)(params->data));
rgrover1 185:7cd70497aec8 322 }
rgrover1 189:a23091b54ab5 323 } else if (params->charHandle == resetChar.getValueAttribute().getHandle()) {
rgrover1 200:80dd3e50705c 324 resetDefaults();
rgrover1 185:7cd70497aec8 325 }
rgrover1 210:0c14030d1bd0 326 configureGAP();
rgrover1 185:7cd70497aec8 327 ble.setAdvertisingPayload();
rgrover1 185:7cd70497aec8 328 }
rgrover1 185:7cd70497aec8 329
rgrover1 200:80dd3e50705c 330 void resetDefaults(void) {
rgrover1 216:3f5e47361919 331 lockedState = false;
rgrover1 212:852d45a52016 332 uriDataLength = 0;
rgrover1 216:3f5e47361919 333 memset(uriData, 0, MAX_SIZE_URI_DATA_CHAR_VALUE);
rgrover1 212:852d45a52016 334 flags = 0;
rgrover1 216:3f5e47361919 335 memset(powerLevels, 0, sizeof(powerLevels));
rgrover1 218:8ae02569fab9 336 txPowerMode = TX_POWER_MODE_LOW;
rgrover1 212:852d45a52016 337 beaconPeriod = 0;
rgrover1 189:a23091b54ab5 338
rgrover1 211:f181effe5de3 339 updateGATT();
rgrover1 211:f181effe5de3 340 }
rgrover1 211:f181effe5de3 341
rgrover1 211:f181effe5de3 342 void updateGATT(void) {
rgrover1 214:7d79fa197212 343 updateLockedStateCharacteristic();
rgrover1 211:f181effe5de3 344 updateURIDataCharacteristic();
rgrover1 211:f181effe5de3 345 updateFlagsCharacteristic();
rgrover1 211:f181effe5de3 346 updateBeaconPeriodCharacteristic();
rgrover1 220:e75e8ba1ff80 347 updateTxPowerLevelsCharacteristic();
rgrover1 220:e75e8ba1ff80 348 updateTxPowerModeCharacteristic();
rgrover1 211:f181effe5de3 349 }
rgrover1 211:f181effe5de3 350
rgrover1 214:7d79fa197212 351 void updateLockedStateCharacteristic(void) {
rgrover1 214:7d79fa197212 352 ble.updateCharacteristicValue(lockedStateChar.getValueAttribute().getHandle(), reinterpret_cast<uint8_t *>(&lockedState), sizeof(lockedState));
rgrover1 214:7d79fa197212 353 }
rgrover1 214:7d79fa197212 354
rgrover1 211:f181effe5de3 355 void updateURIDataCharacteristic(void) {
rgrover1 189:a23091b54ab5 356 ble.updateCharacteristicValue(uriDataChar.getValueAttribute().getHandle(), uriData, uriDataLength);
rgrover1 211:f181effe5de3 357 }
rgrover1 211:f181effe5de3 358
rgrover1 211:f181effe5de3 359 void updateFlagsCharacteristic(void) {
rgrover1 189:a23091b54ab5 360 ble.updateCharacteristicValue(flagsChar.getValueAttribute().getHandle(), &flags, 1 /* size */);
rgrover1 211:f181effe5de3 361 }
rgrover1 211:f181effe5de3 362
rgrover1 211:f181effe5de3 363 void updateBeaconPeriodCharacteristic(void) {
rgrover1 189:a23091b54ab5 364 ble.updateCharacteristicValue(beaconPeriodChar.getValueAttribute().getHandle(), reinterpret_cast<uint8_t *>(&beaconPeriod), sizeof(uint16_t));
rgrover1 189:a23091b54ab5 365 }
rgrover1 189:a23091b54ab5 366
rgrover1 218:8ae02569fab9 367 void updateTxPowerModeCharacteristic(void) {
rgrover1 220:e75e8ba1ff80 368 ble.updateCharacteristicValue(txPowerModeChar.getValueAttribute().getHandle(), reinterpret_cast<uint8_t *>(&txPowerMode), sizeof(uint8_t));
rgrover1 218:8ae02569fab9 369 }
rgrover1 218:8ae02569fab9 370
rgrover1 218:8ae02569fab9 371 void updateTxPowerLevelsCharacteristic(void) {
rgrover1 218:8ae02569fab9 372 ble.updateCharacteristicValue(txPowerLevelsChar.getValueAttribute().getHandle(), reinterpret_cast<uint8_t *>(powerLevels), NUM_POWER_MODES * sizeof(int8_t));
rgrover1 218:8ae02569fab9 373 }
rgrover1 218:8ae02569fab9 374
rgrover1 185:7cd70497aec8 375 private:
rgrover1 185:7cd70497aec8 376 /**
rgrover1 185:7cd70497aec8 377 * For debugging only.
rgrover1 185:7cd70497aec8 378 */
rgrover1 185:7cd70497aec8 379 void dumpEncodedSeviceData() const {
rgrover1 185:7cd70497aec8 380 printf("encoded: '");
rgrover1 185:7cd70497aec8 381 for (unsigned i = 0; i < payloadIndex; i++) {
rgrover1 185:7cd70497aec8 382 printf(" %02x", serviceDataPayload[i]);
rgrover1 185:7cd70497aec8 383 }
rgrover1 185:7cd70497aec8 384 printf("'\r\n");
rgrover1 185:7cd70497aec8 385 }
rgrover1 185:7cd70497aec8 386
rgrover1 171:6092e61690dc 387 private:
rgrover1 199:6b57874115f6 388 static const size_t MAX_SIZEOF_SERVICE_DATA_PAYLOAD = 18; /* Uri Data must be between 0 and 18 bytes in length. */
rgrover1 204:479f81fd5d3b 389 static const size_t MAX_SIZE_URI_DATA_CHAR_VALUE = 48; /* This is chosen arbitrarily. It should be large enough
rgrover1 204:479f81fd5d3b 390 * to hold any reasonable uncompressed URI. */
rgrover1 171:6092e61690dc 391
rgrover1 171:6092e61690dc 392 private:
rgrover1 206:49646c933822 393 BLEDevice &ble;
rgrover1 171:6092e61690dc 394
rgrover1 206:49646c933822 395 size_t payloadIndex;
rgrover1 206:49646c933822 396 uint8_t serviceDataPayload[MAX_SIZEOF_SERVICE_DATA_PAYLOAD];
rgrover1 206:49646c933822 397 bool initSucceeded;
rgrover1 182:d16f8c11816b 398
rgrover1 206:49646c933822 399 bool lockedState;
rgrover1 206:49646c933822 400 uint16_t uriDataLength;
rgrover1 206:49646c933822 401 uint8_t uriData[MAX_SIZE_URI_DATA_CHAR_VALUE];
rgrover1 206:49646c933822 402 uint8_t flags;
rgrover1 206:49646c933822 403 int8_t powerLevels[NUM_POWER_MODES];
rgrover1 218:8ae02569fab9 404 TXPowerModes_t txPowerMode;
rgrover1 206:49646c933822 405 uint16_t beaconPeriod;
rgrover1 206:49646c933822 406 bool resetFlag;
rgrover1 171:6092e61690dc 407
rgrover1 206:49646c933822 408 GattCharacteristic lockedStateChar;
rgrover1 206:49646c933822 409 GattCharacteristic uriDataChar;
rgrover1 206:49646c933822 410 GattCharacteristic flagsChar;
rgrover1 206:49646c933822 411 GattCharacteristic txPowerLevelsChar;
rgrover1 218:8ae02569fab9 412 GattCharacteristic txPowerModeChar;
rgrover1 206:49646c933822 413 GattCharacteristic beaconPeriodChar;
rgrover1 206:49646c933822 414 GattCharacteristic resetChar;
rgrover1 171:6092e61690dc 415 };
rgrover1 171:6092e61690dc 416
rgrover1 207:e88130dc254c 417 #endif /* #ifndef __BLE_URI_BEACON_CONFIG_SERVICE_H__*/