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ble/services/EddystoneService.h@992:ca834f7ae8ed, 2015-12-02 (annotated)

Committer:
rgrover1
Date:
Wed Dec 02 10:29:44 2015 +0000
Revision:
992:ca834f7ae8ed
Parent:
978:7d8155c636b8
Child:
993:4d62b7967c11
Synchronized with git rev 4d446511

Author: Irit Arkin

Minor edits

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 978:7d8155c636b8 1 /* mbed Microcontroller Library
rgrover1 978:7d8155c636b8 2 * Copyright (c) 2006-2015 ARM Limited
rgrover1 978:7d8155c636b8 3 *
rgrover1 978:7d8155c636b8 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 978:7d8155c636b8 5 * you may not use this file except in compliance with the License.
rgrover1 978:7d8155c636b8 6 * You may obtain a copy of the License at
rgrover1 978:7d8155c636b8 7 *
rgrover1 978:7d8155c636b8 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 978:7d8155c636b8 9 *
rgrover1 978:7d8155c636b8 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 978:7d8155c636b8 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 978:7d8155c636b8 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 978:7d8155c636b8 13 * See the License for the specific language governing permissions and
rgrover1 978:7d8155c636b8 14 * limitations under the License.
rgrover1 978:7d8155c636b8 15 */
rgrover1 978:7d8155c636b8 16
rgrover1 978:7d8155c636b8 17 #ifndef SERVICES_EDDYSTONEBEACON_H_
rgrover1 978:7d8155c636b8 18 #define SERVICES_EDDYSTONEBEACON_H_
rgrover1 978:7d8155c636b8 19
rgrover1 978:7d8155c636b8 20 #include "ble/BLE.h"
rgrover1 978:7d8155c636b8 21 #include "mbed.h"
rgrover1 978:7d8155c636b8 22 #include "CircularBuffer.h"
rgrover1 978:7d8155c636b8 23 static const uint8_t BEACON_EDDYSTONE[] = {0xAA, 0xFE};
rgrover1 978:7d8155c636b8 24
rgrover1 978:7d8155c636b8 25 //Debug is disabled by default
rgrover1 978:7d8155c636b8 26 #if 0
rgrover1 978:7d8155c636b8 27 #define DBG(MSG, ...) printf("[EddyStone: DBG]" MSG " \t[%s,%d]\r\n", \
rgrover1 978:7d8155c636b8 28 ## __VA_ARGS__, \
rgrover1 978:7d8155c636b8 29 __FILE__, \
rgrover1 978:7d8155c636b8 30 __LINE__);
rgrover1 978:7d8155c636b8 31 #define WARN(MSG, ...) printf("[EddyStone: WARN]" MSG " \t[%s,%d]\r\n", \
rgrover1 978:7d8155c636b8 32 ## __VA_ARGS__, \
rgrover1 978:7d8155c636b8 33 __FILE__, \
rgrover1 978:7d8155c636b8 34 __LINE__);
rgrover1 978:7d8155c636b8 35 #define ERR(MSG, ...) printf("[EddyStone: ERR]" MSG " \t[%s,%d]\r\n", \
rgrover1 978:7d8155c636b8 36 ## __VA_ARGS__, \
rgrover1 978:7d8155c636b8 37 __FILE__, \
rgrover1 978:7d8155c636b8 38 __LINE__);
rgrover1 978:7d8155c636b8 39 #else // if 0
rgrover1 978:7d8155c636b8 40 #define DBG(x, ...) //wait_us(10);
rgrover1 978:7d8155c636b8 41 #define WARN(x, ...) //wait_us(10);
rgrover1 978:7d8155c636b8 42 #define ERR(x, ...)
rgrover1 978:7d8155c636b8 43 #endif // if 0
rgrover1 978:7d8155c636b8 44
rgrover1 978:7d8155c636b8 45 #if 0
rgrover1 978:7d8155c636b8 46 #define INFO(x, ...) printf("[EddyStone: INFO]"x " \t[%s,%d]\r\n", \
rgrover1 978:7d8155c636b8 47 ## __VA_ARGS__, \
rgrover1 978:7d8155c636b8 48 __FILE__, \
rgrover1 978:7d8155c636b8 49 __LINE__);
rgrover1 978:7d8155c636b8 50 #else // if 0
rgrover1 978:7d8155c636b8 51 #define INFO(x, ...)
rgrover1 978:7d8155c636b8 52 #endif // if 0
rgrover1 978:7d8155c636b8 53
rgrover1 978:7d8155c636b8 54 /**
rgrover1 978:7d8155c636b8 55 * @class Eddystone
rgrover1 978:7d8155c636b8 56 * @brief Eddystone Configuration Service. Can be used to set URL, adjust power levels, and set flags.
rgrover1 978:7d8155c636b8 57 * See https://github.com/google/eddystone
rgrover1 978:7d8155c636b8 58 *
rgrover1 978:7d8155c636b8 59 */
rgrover1 978:7d8155c636b8 60 class EddystoneService
rgrover1 978:7d8155c636b8 61 {
rgrover1 978:7d8155c636b8 62 public:
rgrover1 978:7d8155c636b8 63 enum FrameTypes {
rgrover1 978:7d8155c636b8 64 NONE,
rgrover1 978:7d8155c636b8 65 url,
rgrover1 978:7d8155c636b8 66 uid,
rgrover1 978:7d8155c636b8 67 tlm
rgrover1 978:7d8155c636b8 68 };
rgrover1 978:7d8155c636b8 69
rgrover1 978:7d8155c636b8 70 static const int SERVICE_DATA_MAX = 31; // Maximum size of service data in ADV packets
rgrover1 978:7d8155c636b8 71
rgrover1 978:7d8155c636b8 72 // There are currently 3 subframes defined, URI, UID, and TLM
rgrover1 978:7d8155c636b8 73 #define EDDYSTONE_MAX_FRAMETYPE 3
rgrover1 978:7d8155c636b8 74 void (*frames[EDDYSTONE_MAX_FRAMETYPE])(uint8_t *, uint32_t);
rgrover1 978:7d8155c636b8 75 static const int URI_DATA_MAX = 18;
rgrover1 978:7d8155c636b8 76 typedef uint8_t UriData_t[URI_DATA_MAX];
rgrover1 978:7d8155c636b8 77 CircularBuffer<FrameTypes, EDDYSTONE_MAX_FRAMETYPE> overflow;
rgrover1 978:7d8155c636b8 78
rgrover1 978:7d8155c636b8 79 // UID Frame Type subfields
rgrover1 978:7d8155c636b8 80 static const int UID_NAMESPACEID_SIZE = 10;
rgrover1 978:7d8155c636b8 81 typedef uint8_t UIDNamespaceID_t[UID_NAMESPACEID_SIZE];
rgrover1 978:7d8155c636b8 82 static const int UID_INSTANCEID_SIZE = 6;
rgrover1 978:7d8155c636b8 83 typedef uint8_t UIDInstanceID_t[UID_INSTANCEID_SIZE];
rgrover1 978:7d8155c636b8 84
rgrover1 978:7d8155c636b8 85 // Eddystone Frame Type ID
rgrover1 978:7d8155c636b8 86 static const uint8_t FRAME_TYPE_UID = 0x00;
rgrover1 978:7d8155c636b8 87 static const uint8_t FRAME_TYPE_URL = 0x10;
rgrover1 978:7d8155c636b8 88 static const uint8_t FRAME_TYPE_TLM = 0x20;
rgrover1 978:7d8155c636b8 89
rgrover1 978:7d8155c636b8 90 static const uint8_t FRAME_SIZE_TLM = 14; // TLM frame is a constant 14Bytes
rgrover1 978:7d8155c636b8 91 static const uint8_t FRAME_SIZE_UID = 20; // includes RFU bytes
rgrover1 978:7d8155c636b8 92
rgrover1 978:7d8155c636b8 93 /**
rgrover1 978:7d8155c636b8 94 * Set Eddystone UID Frame information.
rgrover1 978:7d8155c636b8 95 *
rgrover1 978:7d8155c636b8 96 * @param[in] power TX Power in dB measured at 0 meters from the device. Range of -100 to +20 dB.
rgrover1 978:7d8155c636b8 97 * @param[in] namespaceID 10B namespace ID
rgrover1 978:7d8155c636b8 98 * @param[in] instanceID 6B instance ID
rgrover1 978:7d8155c636b8 99 * @param[in] RFU 2B of RFU, initialized to 0x0000 and not broadcast, included for future reference.
rgrover1 978:7d8155c636b8 100 */
rgrover1 978:7d8155c636b8 101 void setUIDFrameData(int8_t power,
rgrover1 978:7d8155c636b8 102 UIDNamespaceID_t namespaceID,
rgrover1 978:7d8155c636b8 103 UIDInstanceID_t instanceID,
rgrover1 978:7d8155c636b8 104 float uidAdvPeriodIn,
rgrover1 978:7d8155c636b8 105 uint16_t RFU = 0x0000) {
rgrover1 978:7d8155c636b8 106 if (0.0f == uidAdvPeriodIn) {
rgrover1 978:7d8155c636b8 107 uidIsSet = false;
rgrover1 978:7d8155c636b8 108 return;
rgrover1 978:7d8155c636b8 109 }
rgrover1 978:7d8155c636b8 110 if (power > 20) {
rgrover1 978:7d8155c636b8 111 power = 20;
rgrover1 978:7d8155c636b8 112 }
rgrover1 978:7d8155c636b8 113 if (power < -100) {
rgrover1 978:7d8155c636b8 114 power = -100;
rgrover1 978:7d8155c636b8 115 }
rgrover1 978:7d8155c636b8 116
rgrover1 978:7d8155c636b8 117 defaultUidPower = power;
rgrover1 978:7d8155c636b8 118 memcpy(defaultUidNamespaceID, namespaceID, UID_NAMESPACEID_SIZE);
rgrover1 978:7d8155c636b8 119 memcpy(defaultUidInstanceID, instanceID, UID_INSTANCEID_SIZE);
rgrover1 978:7d8155c636b8 120 uidRFU = (uint16_t)RFU; // this is probably bad form, but it doesn't really matter yet.
rgrover1 978:7d8155c636b8 121 uidAdvPeriod = uidAdvPeriodIn;
rgrover1 978:7d8155c636b8 122 uidIsSet = true; // set toggle to advertise UID frames
rgrover1 978:7d8155c636b8 123 }
rgrover1 978:7d8155c636b8 124
rgrover1 978:7d8155c636b8 125 /*
rgrover1 978:7d8155c636b8 126 * Construct UID frame from private variables
rgrover1 978:7d8155c636b8 127 * @param[in/out] Data pointer to array to store constructed frame in
rgrover1 978:7d8155c636b8 128 * @param[in] maxSize number of bytes left in array, effectively how much empty space is available to write to
rgrover1 978:7d8155c636b8 129 * @return number of bytes used. negative number indicates error message.
rgrover1 978:7d8155c636b8 130 */
rgrover1 978:7d8155c636b8 131 unsigned constructUIDFrame(uint8_t *Data, uint8_t maxSize) {
rgrover1 978:7d8155c636b8 132 unsigned index = 0;
rgrover1 978:7d8155c636b8 133
rgrover1 978:7d8155c636b8 134 Data[index++] = FRAME_TYPE_UID; // 1B Type
rgrover1 978:7d8155c636b8 135
rgrover1 978:7d8155c636b8 136 if (defaultUidPower > 20) {
rgrover1 978:7d8155c636b8 137 defaultUidPower = 20; // enforce range of vaild values.
rgrover1 978:7d8155c636b8 138 }
rgrover1 978:7d8155c636b8 139 if (defaultUidPower < -100) {
rgrover1 978:7d8155c636b8 140 defaultUidPower = -100;
rgrover1 978:7d8155c636b8 141 }
rgrover1 978:7d8155c636b8 142 Data[index++] = defaultUidPower; // 1B Power @ 0meter
rgrover1 978:7d8155c636b8 143
rgrover1 978:7d8155c636b8 144 DBG("UID NamespaceID = '0x");
rgrover1 978:7d8155c636b8 145 for (size_t x = 0; x < UID_NAMESPACEID_SIZE; x++) { // 10B Namespace ID
rgrover1 978:7d8155c636b8 146 Data[index++] = defaultUidNamespaceID[x];
rgrover1 978:7d8155c636b8 147 DBG("%x,", defaultUidNamespaceID[x]);
rgrover1 978:7d8155c636b8 148 }
rgrover1 978:7d8155c636b8 149 DBG("'\r\n");
rgrover1 978:7d8155c636b8 150
rgrover1 978:7d8155c636b8 151 DBG("UID InstanceID = '0x");
rgrover1 978:7d8155c636b8 152 for (size_t x = 0; x< UID_INSTANCEID_SIZE; x++) { // 6B Instance ID
rgrover1 978:7d8155c636b8 153 Data[index++] = defaultUidInstanceID[x];
rgrover1 978:7d8155c636b8 154 DBG("%x,", defaultUidInstanceID[x]);
rgrover1 978:7d8155c636b8 155 }
rgrover1 978:7d8155c636b8 156 DBG("'\r\n");
rgrover1 978:7d8155c636b8 157
rgrover1 978:7d8155c636b8 158 if (0 != uidRFU) { // 2B RFU, include if non-zero, otherwise ignore
rgrover1 978:7d8155c636b8 159 Data[index++] = (uint8_t)(uidRFU >> 0);
rgrover1 978:7d8155c636b8 160 Data[index++] = (uint8_t)(uidRFU >> 8);
rgrover1 978:7d8155c636b8 161 }
rgrover1 978:7d8155c636b8 162 DBG("construcUIDFrame %d, %d", maxSize, index);
rgrover1 978:7d8155c636b8 163 return index;
rgrover1 978:7d8155c636b8 164 }
rgrover1 978:7d8155c636b8 165
rgrover1 978:7d8155c636b8 166 /**
rgrover1 978:7d8155c636b8 167 * Set Eddystone URL Frame information.
rgrover1 978:7d8155c636b8 168 * @param[in] power TX Power in dB measured at 0 meters from the device.
rgrover1 978:7d8155c636b8 169 * @param[in] url URL to encode
rgrover1 978:7d8155c636b8 170 * @param[in] urlAdvPeriodIn How long to advertise the URL frame (measured in # of adv periods)
rgrover1 978:7d8155c636b8 171 * @return false on success, true on failure.
rgrover1 978:7d8155c636b8 172 */
rgrover1 978:7d8155c636b8 173 bool setURLFrameData(int8_t power, const char *urlIn, float urlAdvPeriodIn) {
rgrover1 978:7d8155c636b8 174 if (0.0f == urlAdvPeriodIn) {
rgrover1 978:7d8155c636b8 175 urlIsSet = false;
rgrover1 978:7d8155c636b8 176 return false;
rgrover1 978:7d8155c636b8 177 }
rgrover1 978:7d8155c636b8 178 encodeURL(urlIn, defaultUriData, defaultUriDataLength); // encode URL to URL Formatting
rgrover1 978:7d8155c636b8 179 if (defaultUriDataLength > URI_DATA_MAX) {
rgrover1 978:7d8155c636b8 180 return true; // error, URL is too big
rgrover1 978:7d8155c636b8 181 }
rgrover1 978:7d8155c636b8 182 defaultUrlPower = power;
rgrover1 978:7d8155c636b8 183 urlAdvPeriod = urlAdvPeriodIn;
rgrover1 978:7d8155c636b8 184 urlIsSet = true;
rgrover1 978:7d8155c636b8 185 return false;
rgrover1 978:7d8155c636b8 186 }
rgrover1 978:7d8155c636b8 187
rgrover1 978:7d8155c636b8 188 /**
rgrover1 978:7d8155c636b8 189 * Set Eddystone URL Frame information.
rgrover1 978:7d8155c636b8 190 * @param[in] power TX Power in dB measured at 0 meters from the device.
rgrover1 978:7d8155c636b8 191 * @param[in] encodedUrlIn Encoded URL
rgrover1 978:7d8155c636b8 192 * @param[in] encodedUrlInLength Length of the encoded URL
rgrover1 978:7d8155c636b8 193 * @param[in] urlAdvPeriodIn How long to advertise the URL frame (measured in # of adv periods)
rgrover1 978:7d8155c636b8 194 * @return false on success, true on failure.
rgrover1 978:7d8155c636b8 195 */
rgrover1 978:7d8155c636b8 196 bool setURLFrameEncodedData(int8_t power, const char *encodedUrlIn, uint8_t encodedUrlInLength, float urlAdvPeriodIn) {
rgrover1 978:7d8155c636b8 197 if (0.0f == urlAdvPeriodIn) {
rgrover1 978:7d8155c636b8 198 urlIsSet = false;
rgrover1 978:7d8155c636b8 199 return false;
rgrover1 978:7d8155c636b8 200 }
rgrover1 978:7d8155c636b8 201 memcpy(defaultUriData, encodedUrlIn, encodedUrlInLength);
rgrover1 978:7d8155c636b8 202 if (defaultUriDataLength > URI_DATA_MAX) {
rgrover1 978:7d8155c636b8 203 return true; // error, URL is too big
rgrover1 978:7d8155c636b8 204 }
rgrover1 978:7d8155c636b8 205 defaultUrlPower = power;
rgrover1 978:7d8155c636b8 206 defaultUriDataLength = encodedUrlInLength;
rgrover1 978:7d8155c636b8 207 urlAdvPeriod = urlAdvPeriodIn;
rgrover1 978:7d8155c636b8 208 urlIsSet = true;
rgrover1 978:7d8155c636b8 209 return false;
rgrover1 978:7d8155c636b8 210 }
rgrover1 978:7d8155c636b8 211
rgrover1 978:7d8155c636b8 212 /*
rgrover1 978:7d8155c636b8 213 * Construct URL frame from private variables
rgrover1 978:7d8155c636b8 214 * @param[in/out] Data pointer to array to store constructed frame in
rgrover1 978:7d8155c636b8 215 * @param[in] maxSize number of bytes left in array, effectively how much emtpy space is available to write to
rgrover1 978:7d8155c636b8 216 * @return number of bytes used. negative number indicates error message.
rgrover1 978:7d8155c636b8 217 */
rgrover1 978:7d8155c636b8 218 int constructURLFrame(uint8_t *Data, uint8_t maxSize) {
rgrover1 978:7d8155c636b8 219 int index = 0;
rgrover1 978:7d8155c636b8 220 Data[index++] = FRAME_TYPE_URL; // 1B Type
rgrover1 978:7d8155c636b8 221 Data[index++] = defaultUrlPower; // 1B TX Power
rgrover1 978:7d8155c636b8 222 for (int x = 0; x < defaultUriDataLength; x++) { // 18B of URL Prefix + encoded URL
rgrover1 978:7d8155c636b8 223 Data[index++] = defaultUriData[x];
rgrover1 978:7d8155c636b8 224 }
rgrover1 978:7d8155c636b8 225 DBG("constructURLFrame: %d, %d", maxSize, index);
rgrover1 978:7d8155c636b8 226 return index;
rgrover1 978:7d8155c636b8 227 }
rgrover1 978:7d8155c636b8 228
rgrover1 978:7d8155c636b8 229 /*
rgrover1 978:7d8155c636b8 230 * Set Eddystone TLM Frame information.
rgrover1 978:7d8155c636b8 231 * @param[in] Version of the TLM beacon data format
rgrover1 978:7d8155c636b8 232 * @param[in] advPeriod how often to advertise the TLM frame for (in minutes)
rgrover1 978:7d8155c636b8 233 * @param batteryVoltage in milivolts
rgrover1 978:7d8155c636b8 234 * @param beaconTemp in 8.8 floating point notation
rgrover1 978:7d8155c636b8 235 *
rgrover1 978:7d8155c636b8 236 */
rgrover1 978:7d8155c636b8 237 void setTLMFrameData(uint8_t version = 0,
rgrover1 978:7d8155c636b8 238 float advPeriod = 60.0f,
rgrover1 978:7d8155c636b8 239 uint16_t batteryVoltage = 0,
rgrover1 978:7d8155c636b8 240 uint16_t beaconTemp = 0x8000,
rgrover1 978:7d8155c636b8 241 uint32_t pduCount = 0,
rgrover1 978:7d8155c636b8 242 uint32_t timeSinceBoot = 0) {
rgrover1 978:7d8155c636b8 243 if (0.0f == advPeriod) {
rgrover1 978:7d8155c636b8 244 tlmIsSet = false;
rgrover1 978:7d8155c636b8 245 return;
rgrover1 978:7d8155c636b8 246 }
rgrover1 978:7d8155c636b8 247 TlmVersion = version;
rgrover1 978:7d8155c636b8 248 TlmBatteryVoltage = batteryVoltage;
rgrover1 978:7d8155c636b8 249 TlmBeaconTemp = beaconTemp;
rgrover1 978:7d8155c636b8 250 TlmPduCount = pduCount; // reset
rgrover1 978:7d8155c636b8 251 TlmTimeSinceBoot = timeSinceBoot; // reset
rgrover1 978:7d8155c636b8 252 TlmAdvPeriod = advPeriod;
rgrover1 978:7d8155c636b8 253 tlmIsSet = true; // TLM Data has been enabled
rgrover1 978:7d8155c636b8 254 }
rgrover1 978:7d8155c636b8 255
rgrover1 978:7d8155c636b8 256 /*
rgrover1 978:7d8155c636b8 257 * Construct TLM frame from private variables
rgrover1 978:7d8155c636b8 258 * @param[in/out] Data pointer to array to store constructed frame in
rgrover1 978:7d8155c636b8 259 * @param[in] maxSize number of bytes left in array, effectively how much emtpy space is available to write to
rgrover1 978:7d8155c636b8 260 * @return number of bytes used. negative number indicates error message.
rgrover1 978:7d8155c636b8 261 */
rgrover1 978:7d8155c636b8 262 int constructTLMFrame(uint8_t *Data, uint8_t maxSize) {
rgrover1 978:7d8155c636b8 263 uint32_t now = timeSinceBootTimer.read_ms();
rgrover1 978:7d8155c636b8 264 TlmTimeSinceBoot += (now - lastBootTimerRead) / 100;
rgrover1 978:7d8155c636b8 265 lastBootTimerRead = now;
rgrover1 978:7d8155c636b8 266
rgrover1 978:7d8155c636b8 267 int index = 0;
rgrover1 978:7d8155c636b8 268 Data[index++] = FRAME_TYPE_TLM; // Eddystone frame type = Telemetry
rgrover1 978:7d8155c636b8 269 Data[index++] = TlmVersion; // TLM Version Number
rgrover1 978:7d8155c636b8 270 Data[index++] = (uint8_t)(TlmBatteryVoltage >> 8); // Battery Voltage[0]
rgrover1 978:7d8155c636b8 271 Data[index++] = (uint8_t)(TlmBatteryVoltage >> 0); // Battery Voltage[1]
rgrover1 978:7d8155c636b8 272 Data[index++] = (uint8_t)(TlmBeaconTemp >> 8); // Beacon Temp[0]
rgrover1 978:7d8155c636b8 273 Data[index++] = (uint8_t)(TlmBeaconTemp >> 0); // Beacon Temp[1]
rgrover1 978:7d8155c636b8 274 Data[index++] = (uint8_t)(TlmPduCount >> 24); // PDU Count [0]
rgrover1 978:7d8155c636b8 275 Data[index++] = (uint8_t)(TlmPduCount >> 16); // PDU Count [1]
rgrover1 978:7d8155c636b8 276 Data[index++] = (uint8_t)(TlmPduCount >> 8); // PDU Count [2]
rgrover1 978:7d8155c636b8 277 Data[index++] = (uint8_t)(TlmPduCount >> 0); // PDU Count [3]
rgrover1 978:7d8155c636b8 278 Data[index++] = (uint8_t)(TlmTimeSinceBoot >> 24); // Time Since Boot [0]
rgrover1 978:7d8155c636b8 279 Data[index++] = (uint8_t)(TlmTimeSinceBoot >> 16); // Time Since Boot [1]
rgrover1 978:7d8155c636b8 280 Data[index++] = (uint8_t)(TlmTimeSinceBoot >> 8); // Time Since Boot [2]
rgrover1 978:7d8155c636b8 281 Data[index++] = (uint8_t)(TlmTimeSinceBoot >> 0); // Time Since Boot [3]
rgrover1 978:7d8155c636b8 282 DBG("constructURLFrame: %d, %d", maxSize, index);
rgrover1 978:7d8155c636b8 283 return index;
rgrover1 978:7d8155c636b8 284 }
rgrover1 978:7d8155c636b8 285
rgrover1 978:7d8155c636b8 286 /*
rgrover1 978:7d8155c636b8 287 * Update the TLM frame battery voltage value
rgrover1 978:7d8155c636b8 288 * @param[in] voltagemv Voltage to update the TLM field battery voltage with (in mV)
rgrover1 978:7d8155c636b8 289 * @return nothing
rgrover1 978:7d8155c636b8 290 */
rgrover1 978:7d8155c636b8 291 void updateTlmBatteryVoltage(uint16_t voltagemv) {
rgrover1 978:7d8155c636b8 292 TlmBatteryVoltage = voltagemv;
rgrover1 978:7d8155c636b8 293 }
rgrover1 978:7d8155c636b8 294
rgrover1 978:7d8155c636b8 295 /*
rgrover1 978:7d8155c636b8 296 * Update the TLM frame beacon temperature
rgrover1 978:7d8155c636b8 297 * @param[in] temp Temperature of beacon (in 8.8fpn)
rgrover1 978:7d8155c636b8 298 * @return nothing
rgrover1 978:7d8155c636b8 299 */
rgrover1 978:7d8155c636b8 300 void updateTlmBeaconTemp(uint16_t temp) {
rgrover1 978:7d8155c636b8 301 TlmBeaconTemp = temp;
rgrover1 978:7d8155c636b8 302 }
rgrover1 978:7d8155c636b8 303
rgrover1 978:7d8155c636b8 304 /*
rgrover1 978:7d8155c636b8 305 * Update the TLM frame PDU Count field
rgrover1 978:7d8155c636b8 306 * @param[in] pduCount Number of Advertisiting frames sent since powerup
rgrover1 978:7d8155c636b8 307 * @return nothing
rgrover1 978:7d8155c636b8 308 */
rgrover1 978:7d8155c636b8 309 void updateTlmPduCount(uint32_t pduCount) {
rgrover1 978:7d8155c636b8 310 TlmPduCount = pduCount;
rgrover1 978:7d8155c636b8 311 }
rgrover1 978:7d8155c636b8 312
rgrover1 978:7d8155c636b8 313 /*
rgrover1 978:7d8155c636b8 314 * Update the TLM frame Time since boot in 0.1s incriments
rgrover1 978:7d8155c636b8 315 * @param[in] timeSinceBoot Time since boot in 0.1s incriments
rgrover1 978:7d8155c636b8 316 * @return nothing
rgrover1 978:7d8155c636b8 317 */
rgrover1 978:7d8155c636b8 318 void updateTlmTimeSinceBoot(uint32_t timeSinceBoot) {
rgrover1 978:7d8155c636b8 319 TlmTimeSinceBoot = timeSinceBoot;
rgrover1 978:7d8155c636b8 320 }
rgrover1 978:7d8155c636b8 321
rgrover1 978:7d8155c636b8 322 /*
rgrover1 978:7d8155c636b8 323 * Update advertising data
rgrover1 978:7d8155c636b8 324 * @return true on success, false on failure
rgrover1 978:7d8155c636b8 325 */
rgrover1 978:7d8155c636b8 326 bool updateAdvPacket(uint8_t serviceData[], unsigned serviceDataLen) {
rgrover1 978:7d8155c636b8 327 // Fields from the Service
rgrover1 978:7d8155c636b8 328 DBG("Updating AdvFrame: %d", serviceDataLen);
rgrover1 978:7d8155c636b8 329
rgrover1 978:7d8155c636b8 330 ble.clearAdvertisingPayload();
rgrover1 978:7d8155c636b8 331 ble.setAdvertisingType(GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED);
rgrover1 978:7d8155c636b8 332 ble.setAdvertisingInterval(100);
rgrover1 978:7d8155c636b8 333 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
rgrover1 978:7d8155c636b8 334 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, BEACON_EDDYSTONE, sizeof(BEACON_EDDYSTONE));
rgrover1 978:7d8155c636b8 335 ble.accumulateAdvertisingPayload(GapAdvertisingData::SERVICE_DATA, serviceData, serviceDataLen);
rgrover1 978:7d8155c636b8 336
rgrover1 978:7d8155c636b8 337
rgrover1 978:7d8155c636b8 338 return true;
rgrover1 978:7d8155c636b8 339 }
rgrover1 978:7d8155c636b8 340
rgrover1 978:7d8155c636b8 341 /*
rgrover1 978:7d8155c636b8 342 * State machine for switching out frames.
rgrover1 978:7d8155c636b8 343 * This function is called by the radioNotificationCallback when a frame needs to get swapped out.
rgrover1 978:7d8155c636b8 344 * This function exists because of time constraints in the radioNotificationCallback, so it is effectively
rgrover1 978:7d8155c636b8 345 * broken up into two functions.
rgrover1 978:7d8155c636b8 346 */
rgrover1 978:7d8155c636b8 347 void swapOutFrames(FrameTypes frameType) {
rgrover1 978:7d8155c636b8 348 uint8_t serviceData[SERVICE_DATA_MAX];
rgrover1 978:7d8155c636b8 349 unsigned serviceDataLen = 0;
rgrover1 978:7d8155c636b8 350 //hard code in the eddystone UUID
rgrover1 978:7d8155c636b8 351 serviceData[serviceDataLen++] = BEACON_EDDYSTONE[0];
rgrover1 978:7d8155c636b8 352 serviceData[serviceDataLen++] = BEACON_EDDYSTONE[1];
rgrover1 978:7d8155c636b8 353
rgrover1 978:7d8155c636b8 354 // if certain frames are not enabled, then skip them. Worst case TLM is always enabled
rgrover1 978:7d8155c636b8 355 switch (frameType) {
rgrover1 978:7d8155c636b8 356 case tlm:
rgrover1 978:7d8155c636b8 357 // TLM frame
rgrover1 978:7d8155c636b8 358 if (tlmIsSet) {
rgrover1 978:7d8155c636b8 359 DBG("Swapping in TLM Frame: version=%x, Batt=%d, Temp = %d, PDUCnt = %d, TimeSinceBoot=%d",
rgrover1 978:7d8155c636b8 360 TlmVersion,
rgrover1 978:7d8155c636b8 361 TlmBatteryVoltage,
rgrover1 978:7d8155c636b8 362 TlmBeaconTemp,
rgrover1 978:7d8155c636b8 363 TlmPduCount,
rgrover1 978:7d8155c636b8 364 TlmTimeSinceBoot);
rgrover1 978:7d8155c636b8 365 serviceDataLen += constructTLMFrame(serviceData + serviceDataLen, 20);
rgrover1 978:7d8155c636b8 366 DBG("\t Swapping in TLM Frame: len=%d", serviceDataLen);
rgrover1 978:7d8155c636b8 367 updateAdvPacket(serviceData, serviceDataLen);
rgrover1 978:7d8155c636b8 368 }
rgrover1 978:7d8155c636b8 369 break;
rgrover1 978:7d8155c636b8 370 case url:
rgrover1 978:7d8155c636b8 371 // URL Frame
rgrover1 978:7d8155c636b8 372 if (urlIsSet) {
rgrover1 978:7d8155c636b8 373 DBG("Swapping in URL Frame: Power: %d", defaultUrlPower);
rgrover1 978:7d8155c636b8 374 serviceDataLen += constructURLFrame(serviceData + serviceDataLen, 20);
rgrover1 978:7d8155c636b8 375 DBG("\t Swapping in URL Frame: len=%d ", serviceDataLen);
rgrover1 978:7d8155c636b8 376 updateAdvPacket(serviceData, serviceDataLen);
rgrover1 978:7d8155c636b8 377 //switchFlag = false;
rgrover1 978:7d8155c636b8 378 }
rgrover1 978:7d8155c636b8 379 break;
rgrover1 978:7d8155c636b8 380 case uid:
rgrover1 978:7d8155c636b8 381 // UID Frame
rgrover1 978:7d8155c636b8 382 if (uidIsSet) {
rgrover1 978:7d8155c636b8 383 DBG("Swapping in UID Frame: Power: %d", defaultUidPower);
rgrover1 978:7d8155c636b8 384 serviceDataLen += constructUIDFrame(serviceData + serviceDataLen, 20);
rgrover1 978:7d8155c636b8 385 DBG("\t Swapping in UID Frame: len=%d", serviceDataLen);
rgrover1 978:7d8155c636b8 386 updateAdvPacket(serviceData, serviceDataLen);
rgrover1 978:7d8155c636b8 387 //switchFlag = false;
rgrover1 978:7d8155c636b8 388 }
rgrover1 978:7d8155c636b8 389 break;
rgrover1 978:7d8155c636b8 390 default:
rgrover1 978:7d8155c636b8 391 ERR("You have not initialized a Frame yet, please initialize one before starting a beacon");
rgrover1 978:7d8155c636b8 392 ERR("uidIsSet = %d, urlIsSet = %d, tlmIsSet = %d", uidIsSet, urlIsSet, tlmIsSet);
rgrover1 978:7d8155c636b8 393 }
rgrover1 978:7d8155c636b8 394 }
rgrover1 978:7d8155c636b8 395
rgrover1 978:7d8155c636b8 396 /*
rgrover1 978:7d8155c636b8 397 * Callback to swap in URL frame
rgrover1 978:7d8155c636b8 398 */
rgrover1 978:7d8155c636b8 399 void urlCallback(void) {
rgrover1 978:7d8155c636b8 400 DBG("urlCallback");
rgrover1 978:7d8155c636b8 401 if (false == advLock) {
rgrover1 978:7d8155c636b8 402 advLock = true;
rgrover1 978:7d8155c636b8 403 DBG("advLock = url")
rgrover1 978:7d8155c636b8 404 frameIndex = url;
rgrover1 978:7d8155c636b8 405 swapOutFrames(frameIndex);
rgrover1 978:7d8155c636b8 406 ble.startAdvertising();
rgrover1 978:7d8155c636b8 407 } else {
rgrover1 978:7d8155c636b8 408 // Someone else is broadcasting, toss it into the overflow buffer to retransmit when free
rgrover1 978:7d8155c636b8 409 INFO("URI(%d) cannot complete, %d is currently broadcasting", url, frameIndex);
rgrover1 978:7d8155c636b8 410 FrameTypes x = url;
rgrover1 978:7d8155c636b8 411 overflow.push(x);
rgrover1 978:7d8155c636b8 412 }
rgrover1 978:7d8155c636b8 413 }
rgrover1 978:7d8155c636b8 414
rgrover1 978:7d8155c636b8 415 /*
rgrover1 978:7d8155c636b8 416 * Callback to swap in UID frame
rgrover1 978:7d8155c636b8 417 */
rgrover1 978:7d8155c636b8 418 void uidCallback(void) {
rgrover1 978:7d8155c636b8 419 DBG("uidCallback");
rgrover1 978:7d8155c636b8 420 if (false == advLock) {
rgrover1 978:7d8155c636b8 421 advLock = true;
rgrover1 978:7d8155c636b8 422 DBG("advLock = uid")
rgrover1 978:7d8155c636b8 423 frameIndex = uid;
rgrover1 978:7d8155c636b8 424 swapOutFrames(frameIndex);
rgrover1 978:7d8155c636b8 425 ble.startAdvertising();
rgrover1 978:7d8155c636b8 426 } else {
rgrover1 978:7d8155c636b8 427 // Someone else is broadcasting, toss it into the overflow buffer to retransmit when free
rgrover1 978:7d8155c636b8 428 INFO("UID(%d) cannot complete, %d is currently broadcasting", uid, frameIndex);
rgrover1 978:7d8155c636b8 429 FrameTypes x = uid; // have to do this to satisfy cont vs volatile keywords... sigh...
rgrover1 978:7d8155c636b8 430 overflow.push(x);
rgrover1 978:7d8155c636b8 431 }
rgrover1 978:7d8155c636b8 432 }
rgrover1 978:7d8155c636b8 433
rgrover1 978:7d8155c636b8 434 /*
rgrover1 978:7d8155c636b8 435 * Callback to swap in TLM frame
rgrover1 978:7d8155c636b8 436 */
rgrover1 978:7d8155c636b8 437 void tlmCallback(void) {
rgrover1 978:7d8155c636b8 438 DBG("tlmCallback");
rgrover1 978:7d8155c636b8 439 if (false == advLock) {
rgrover1 978:7d8155c636b8 440 // OK to broadcast
rgrover1 978:7d8155c636b8 441 advLock = true;
rgrover1 978:7d8155c636b8 442 DBG("advLock = tlm")
rgrover1 978:7d8155c636b8 443 frameIndex = tlm;
rgrover1 978:7d8155c636b8 444 swapOutFrames(frameIndex);
rgrover1 978:7d8155c636b8 445 ble.startAdvertising();
rgrover1 978:7d8155c636b8 446 } else {
rgrover1 978:7d8155c636b8 447 // Someone else is broadcasting, toss it into the overflow buffer to retransmit when free
rgrover1 978:7d8155c636b8 448 INFO("TLM(%d) cannot complete, %d is currently broadcasting", tlm, frameIndex);
rgrover1 978:7d8155c636b8 449 FrameTypes x = tlm;
rgrover1 978:7d8155c636b8 450 overflow.push(x);
rgrover1 978:7d8155c636b8 451 }
rgrover1 978:7d8155c636b8 452 }
rgrover1 978:7d8155c636b8 453
rgrover1 978:7d8155c636b8 454 void stopAdvCallback(void) {
rgrover1 978:7d8155c636b8 455 if (overflow.empty()) {
rgrover1 978:7d8155c636b8 456 // if nothing left to transmit, stop
rgrover1 978:7d8155c636b8 457 ble.stopAdvertising();
rgrover1 978:7d8155c636b8 458 advLock = false; // unlock lock
rgrover1 978:7d8155c636b8 459 } else {
rgrover1 978:7d8155c636b8 460 // transmit other packets at current time index
rgrover1 978:7d8155c636b8 461 FrameTypes x = NONE;
rgrover1 978:7d8155c636b8 462 overflow.pop(x);
rgrover1 978:7d8155c636b8 463 INFO("Re-Transmitting %d", x);
rgrover1 978:7d8155c636b8 464 swapOutFrames(x);
rgrover1 978:7d8155c636b8 465 }
rgrover1 978:7d8155c636b8 466 }
rgrover1 978:7d8155c636b8 467
rgrover1 978:7d8155c636b8 468 /*
rgrover1 978:7d8155c636b8 469 * Callback from onRadioNotification(), used to update the PDUCounter and process next state.
rgrover1 978:7d8155c636b8 470 */
rgrover1 978:7d8155c636b8 471 #define EDDYSTONE_SWAPFRAME_DELAYMS 1
rgrover1 978:7d8155c636b8 472 void radioNotificationCallback(bool radioActive) {
rgrover1 978:7d8155c636b8 473 // Update PDUCount
rgrover1 978:7d8155c636b8 474 TlmPduCount++;
rgrover1 978:7d8155c636b8 475 // True just before an frame is sent, false just after a frame is sent
rgrover1 978:7d8155c636b8 476 if (radioActive) {
rgrover1 978:7d8155c636b8 477 // Do Nothing
rgrover1 978:7d8155c636b8 478 } else {
rgrover1 978:7d8155c636b8 479 // Packet has been sent, disable advertising
rgrover1 978:7d8155c636b8 480 stopAdv.attach_us(this, &EddystoneService::stopAdvCallback, 1);
rgrover1 978:7d8155c636b8 481 }
rgrover1 978:7d8155c636b8 482 }
rgrover1 978:7d8155c636b8 483
rgrover1 978:7d8155c636b8 484 /*
rgrover1 978:7d8155c636b8 485 * This function explicityly sets the parameters used by the Eddystone beacon.
rgrover1 978:7d8155c636b8 486 * this function should be used in leu of the config service.
rgrover1 978:7d8155c636b8 487 *
rgrover1 978:7d8155c636b8 488 * @param bleIn ble object used to broadcast eddystone information
rgrover1 978:7d8155c636b8 489 * @param beaconPeriodus is how often ble broadcasts are mde, in mili seconds
rgrover1 978:7d8155c636b8 490 * @param txPowerLevel sets the broadcasting power level.
rgrover1 978:7d8155c636b8 491 *
rgrover1 978:7d8155c636b8 492 */
rgrover1 978:7d8155c636b8 493 EddystoneService(BLEDevice &bleIn,
rgrover1 978:7d8155c636b8 494 uint16_t beaconPeriodus = 100,
rgrover1 978:7d8155c636b8 495 uint8_t txPowerIn = 0) :
rgrover1 978:7d8155c636b8 496 ble(bleIn),
rgrover1 978:7d8155c636b8 497 advPeriodus(beaconPeriodus),
rgrover1 978:7d8155c636b8 498 txPower(txPowerIn),
rgrover1 978:7d8155c636b8 499 advLock(false),
rgrover1 978:7d8155c636b8 500 frameIndex(NONE) {
rgrover1 978:7d8155c636b8 501 }
rgrover1 978:7d8155c636b8 502
rgrover1 978:7d8155c636b8 503 /*
rgrover1 978:7d8155c636b8 504 * @breif this function starts eddystone advertising based on configured frames.
rgrover1 978:7d8155c636b8 505 */
rgrover1 978:7d8155c636b8 506 void start(void) {
rgrover1 978:7d8155c636b8 507 // Initialize Frame transition, start with URL to pass eddystone validator app on first try
rgrover1 978:7d8155c636b8 508 if (urlIsSet) {
rgrover1 978:7d8155c636b8 509 frameIndex = url;
rgrover1 978:7d8155c636b8 510 urlTicker.attach(this, &EddystoneService::urlCallback, (float) advPeriodus / 1000.0f);
rgrover1 978:7d8155c636b8 511 DBG("attached urlCallback every %d seconds", urlAdvPeriod);
rgrover1 978:7d8155c636b8 512 }
rgrover1 978:7d8155c636b8 513 if (uidIsSet) {
rgrover1 978:7d8155c636b8 514 frameIndex = uid;
rgrover1 978:7d8155c636b8 515 uidTicker.attach(this, &EddystoneService::uidCallback, uidAdvPeriod);
rgrover1 978:7d8155c636b8 516 DBG("attached uidCallback every %d seconds", uidAdvPeriod);
rgrover1 978:7d8155c636b8 517 }
rgrover1 978:7d8155c636b8 518 if (tlmIsSet) {
rgrover1 978:7d8155c636b8 519 frameIndex = tlm;
rgrover1 978:7d8155c636b8 520 // Make double sure the PDUCount and TimeSinceBoot fields are set to zero at reset
rgrover1 978:7d8155c636b8 521 updateTlmPduCount(0);
rgrover1 978:7d8155c636b8 522 updateTlmTimeSinceBoot(0);
rgrover1 978:7d8155c636b8 523 lastBootTimerRead = 0;
rgrover1 978:7d8155c636b8 524 timeSinceBootTimer.start();
rgrover1 978:7d8155c636b8 525 tlmTicker.attach(this, &EddystoneService::tlmCallback, TlmAdvPeriod);
rgrover1 978:7d8155c636b8 526 DBG("attached tlmCallback every %d seconds", TlmAdvPeriod);
rgrover1 978:7d8155c636b8 527 }
rgrover1 978:7d8155c636b8 528 if (NONE == frameIndex) {
rgrover1 978:7d8155c636b8 529 error("No Frames were Initialized! Please initialize a frame before starting an eddystone beacon.");
rgrover1 978:7d8155c636b8 530 }
rgrover1 978:7d8155c636b8 531 //uidRFU = 0;
rgrover1 978:7d8155c636b8 532
rgrover1 978:7d8155c636b8 533 ble.setTxPower(txPower);
rgrover1 978:7d8155c636b8 534 ble.gap().onRadioNotification(this, &EddystoneService::radioNotificationCallback);
rgrover1 978:7d8155c636b8 535 }
rgrover1 978:7d8155c636b8 536
rgrover1 978:7d8155c636b8 537 private:
rgrover1 978:7d8155c636b8 538
rgrover1 978:7d8155c636b8 539 // Eddystone Variables
rgrover1 978:7d8155c636b8 540 BLEDevice &ble;
rgrover1 978:7d8155c636b8 541 uint16_t advPeriodus;
rgrover1 978:7d8155c636b8 542 uint8_t txPower;
rgrover1 978:7d8155c636b8 543 Timer timeSinceBootTimer;
rgrover1 978:7d8155c636b8 544 volatile uint32_t lastBootTimerRead;
rgrover1 978:7d8155c636b8 545 volatile bool advLock;
rgrover1 978:7d8155c636b8 546 volatile FrameTypes frameIndex;
rgrover1 978:7d8155c636b8 547 Timeout stopAdv;
rgrover1 978:7d8155c636b8 548
rgrover1 978:7d8155c636b8 549
rgrover1 978:7d8155c636b8 550 // URI Frame Variables
rgrover1 978:7d8155c636b8 551 uint8_t defaultUriDataLength;
rgrover1 978:7d8155c636b8 552 UriData_t defaultUriData;
rgrover1 978:7d8155c636b8 553 int8_t defaultUrlPower;
rgrover1 978:7d8155c636b8 554 bool urlIsSet; // flag that enables / disable URI Frames
rgrover1 978:7d8155c636b8 555 float urlAdvPeriod; // how long the url frame will be advertised for
rgrover1 978:7d8155c636b8 556 Ticker urlTicker;
rgrover1 978:7d8155c636b8 557
rgrover1 978:7d8155c636b8 558 // UID Frame Variables
rgrover1 978:7d8155c636b8 559 UIDNamespaceID_t defaultUidNamespaceID;
rgrover1 978:7d8155c636b8 560 UIDInstanceID_t defaultUidInstanceID;
rgrover1 978:7d8155c636b8 561 int8_t defaultUidPower;
rgrover1 978:7d8155c636b8 562 uint16_t uidRFU;
rgrover1 978:7d8155c636b8 563 bool uidIsSet; // flag that enables / disable UID Frames
rgrover1 978:7d8155c636b8 564 float uidAdvPeriod; // how long the uid frame will be advertised for
rgrover1 978:7d8155c636b8 565 Ticker uidTicker;
rgrover1 978:7d8155c636b8 566
rgrover1 978:7d8155c636b8 567 // TLM Frame Variables
rgrover1 978:7d8155c636b8 568 uint8_t TlmVersion;
rgrover1 978:7d8155c636b8 569 volatile uint16_t TlmBatteryVoltage;
rgrover1 978:7d8155c636b8 570 volatile uint16_t TlmBeaconTemp;
rgrover1 978:7d8155c636b8 571 volatile uint32_t TlmPduCount;
rgrover1 978:7d8155c636b8 572 volatile uint32_t TlmTimeSinceBoot;
rgrover1 978:7d8155c636b8 573 bool tlmIsSet; // flag that enables / disables TLM frames
rgrover1 978:7d8155c636b8 574 float TlmAdvPeriod; // number of minutes between adv frames
rgrover1 978:7d8155c636b8 575 Ticker tlmTicker;
rgrover1 978:7d8155c636b8 576
rgrover1 978:7d8155c636b8 577 public:
rgrover1 978:7d8155c636b8 578 /*
rgrover1 978:7d8155c636b8 579 * Encode a human-readable URI into the binary format defined by URIBeacon spec (https://github.com/google/uribeacon/tree/master/specification).
rgrover1 978:7d8155c636b8 580 */
rgrover1 978:7d8155c636b8 581 static void encodeURL(const char *uriDataIn, UriData_t uriDataOut, uint8_t &sizeofURIDataOut) {
rgrover1 978:7d8155c636b8 582 DBG("Encode URL = %s", uriDataIn);
rgrover1 978:7d8155c636b8 583 const char *prefixes[] = {
rgrover1 978:7d8155c636b8 584 "http://www.",
rgrover1 978:7d8155c636b8 585 "https://www.",
rgrover1 978:7d8155c636b8 586 "http://",
rgrover1 978:7d8155c636b8 587 "https://",
rgrover1 978:7d8155c636b8 588 };
rgrover1 978:7d8155c636b8 589 const size_t NUM_PREFIXES = sizeof(prefixes) / sizeof(char *);
rgrover1 978:7d8155c636b8 590 const char *suffixes[] = {
rgrover1 978:7d8155c636b8 591 ".com/",
rgrover1 978:7d8155c636b8 592 ".org/",
rgrover1 978:7d8155c636b8 593 ".edu/",
rgrover1 978:7d8155c636b8 594 ".net/",
rgrover1 978:7d8155c636b8 595 ".info/",
rgrover1 978:7d8155c636b8 596 ".biz/",
rgrover1 978:7d8155c636b8 597 ".gov/",
rgrover1 978:7d8155c636b8 598 ".com",
rgrover1 978:7d8155c636b8 599 ".org",
rgrover1 978:7d8155c636b8 600 ".edu",
rgrover1 978:7d8155c636b8 601 ".net",
rgrover1 978:7d8155c636b8 602 ".info",
rgrover1 978:7d8155c636b8 603 ".biz",
rgrover1 978:7d8155c636b8 604 ".gov"
rgrover1 978:7d8155c636b8 605 };
rgrover1 978:7d8155c636b8 606 const size_t NUM_SUFFIXES = sizeof(suffixes) / sizeof(char *);
rgrover1 978:7d8155c636b8 607
rgrover1 978:7d8155c636b8 608 sizeofURIDataOut = 0;
rgrover1 978:7d8155c636b8 609 memset(uriDataOut, 0, sizeof(UriData_t));
rgrover1 978:7d8155c636b8 610
rgrover1 978:7d8155c636b8 611 if ((uriDataIn == NULL) || (strlen(uriDataIn) == 0)) {
rgrover1 978:7d8155c636b8 612 return;
rgrover1 978:7d8155c636b8 613 }
rgrover1 978:7d8155c636b8 614
rgrover1 978:7d8155c636b8 615 /*
rgrover1 978:7d8155c636b8 616 * handle prefix
rgrover1 978:7d8155c636b8 617 */
rgrover1 978:7d8155c636b8 618 for (unsigned i = 0; i < NUM_PREFIXES; i++) {
rgrover1 978:7d8155c636b8 619 size_t prefixLen = strlen(prefixes[i]);
rgrover1 978:7d8155c636b8 620 if (strncmp(uriDataIn, prefixes[i], prefixLen) == 0) {
rgrover1 978:7d8155c636b8 621 uriDataOut[sizeofURIDataOut++] = i;
rgrover1 978:7d8155c636b8 622 uriDataIn += prefixLen;
rgrover1 978:7d8155c636b8 623 break;
rgrover1 978:7d8155c636b8 624 }
rgrover1 978:7d8155c636b8 625 }
rgrover1 978:7d8155c636b8 626
rgrover1 978:7d8155c636b8 627 /*
rgrover1 978:7d8155c636b8 628 * handle suffixes
rgrover1 978:7d8155c636b8 629 */
rgrover1 978:7d8155c636b8 630 while (*uriDataIn && (sizeofURIDataOut < URI_DATA_MAX)) {
rgrover1 978:7d8155c636b8 631 /* check for suffix match */
rgrover1 978:7d8155c636b8 632 unsigned i;
rgrover1 978:7d8155c636b8 633 for (i = 0; i < NUM_SUFFIXES; i++) {
rgrover1 978:7d8155c636b8 634 size_t suffixLen = strlen(suffixes[i]);
rgrover1 978:7d8155c636b8 635 if (strncmp(uriDataIn, suffixes[i], suffixLen) == 0) {
rgrover1 978:7d8155c636b8 636 uriDataOut[sizeofURIDataOut++] = i;
rgrover1 978:7d8155c636b8 637 uriDataIn += suffixLen;
rgrover1 978:7d8155c636b8 638 break; /* from the for loop for checking against suffixes */
rgrover1 978:7d8155c636b8 639 }
rgrover1 978:7d8155c636b8 640 }
rgrover1 978:7d8155c636b8 641 /* This is the default case where we've got an ordinary character which doesn't match a suffix. */
rgrover1 978:7d8155c636b8 642 INFO("Encoding URI: No Suffix Found");
rgrover1 978:7d8155c636b8 643 if (i == NUM_SUFFIXES) {
rgrover1 978:7d8155c636b8 644 uriDataOut[sizeofURIDataOut++] = *uriDataIn;
rgrover1 978:7d8155c636b8 645 ++uriDataIn;
rgrover1 978:7d8155c636b8 646 }
rgrover1 978:7d8155c636b8 647 }
rgrover1 978:7d8155c636b8 648 }
rgrover1 978:7d8155c636b8 649 };
rgrover1 978:7d8155c636b8 650
rgrover1 978:7d8155c636b8 651 #endif // SERVICES_EDDYSTONEBEACON_H_