Varun Bahl / BahlDecrypModified

Updated

Fork of BLE_API by Bluetooth Low Energy

ble/services/EddystoneService.h@880:af79236bf22c, 2015-11-03 (annotated)

Committer:
rgrover1
Date:
Tue Nov 03 13:21:03 2015 +0000
Revision:
880:af79236bf22c
Parent:
879:4de7fb4da6ca
Child:
884:37599305e7b6
Synchronized with git rev 2a11965b

Author: Rohit Grover

Merge branch 'develop'. Minor improvement to EddystoneBeacon.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 771:26b809199308 1 /* mbed Microcontroller Library
rgrover1 771:26b809199308 2 * Copyright (c) 2006-2015 ARM Limited
rgrover1 771:26b809199308 3 *
rgrover1 771:26b809199308 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 771:26b809199308 5 * you may not use this file except in compliance with the License.
rgrover1 771:26b809199308 6 * You may obtain a copy of the License at
rgrover1 771:26b809199308 7 *
rgrover1 771:26b809199308 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 771:26b809199308 9 *
rgrover1 771:26b809199308 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 771:26b809199308 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 771:26b809199308 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 771:26b809199308 13 * See the License for the specific language governing permissions and
rgrover1 771:26b809199308 14 * limitations under the License.
rgrover1 771:26b809199308 15 */
rgrover1 771:26b809199308 16
rgrover1 771:26b809199308 17 #ifndef SERVICES_EDDYSTONEBEACON_H_
rgrover1 771:26b809199308 18 #define SERVICES_EDDYSTONEBEACON_H_
rgrover1 771:26b809199308 19
rgrover1 771:26b809199308 20 #include "ble/BLE.h"
rgrover1 771:26b809199308 21 #include "mbed.h"
rgrover1 830:a6ef72e0697a 22 #include "CircularBuffer.h"
rgrover1 771:26b809199308 23 static const uint8_t BEACON_EDDYSTONE[] = {0xAA, 0xFE};
rgrover1 771:26b809199308 24
rgrover1 786:d6d7087d8377 25 //Debug is disabled by default
rgrover1 771:26b809199308 26 #if 0
rgrover1 832:5dac246f8f02 27 #define DBG(MSG, ...) printf("[EddyStone: DBG]" MSG " \t[%s,%d]\r\n", \
rgrover1 832:5dac246f8f02 28 ## __VA_ARGS__, \
rgrover1 832:5dac246f8f02 29 __FILE__, \
rgrover1 832:5dac246f8f02 30 __LINE__);
rgrover1 832:5dac246f8f02 31 #define WARN(MSG, ...) printf("[EddyStone: WARN]" MSG " \t[%s,%d]\r\n", \
rgrover1 832:5dac246f8f02 32 ## __VA_ARGS__, \
rgrover1 832:5dac246f8f02 33 __FILE__, \
rgrover1 832:5dac246f8f02 34 __LINE__);
rgrover1 832:5dac246f8f02 35 #define ERR(MSG, ...) printf("[EddyStone: ERR]" MSG " \t[%s,%d]\r\n", \
rgrover1 832:5dac246f8f02 36 ## __VA_ARGS__, \
rgrover1 832:5dac246f8f02 37 __FILE__, \
rgrover1 832:5dac246f8f02 38 __LINE__);
rgrover1 832:5dac246f8f02 39 #else // if 0
rgrover1 786:d6d7087d8377 40 #define DBG(x, ...) //wait_us(10);
rgrover1 786:d6d7087d8377 41 #define WARN(x, ...) //wait_us(10);
rgrover1 786:d6d7087d8377 42 #define ERR(x, ...)
rgrover1 832:5dac246f8f02 43 #endif // if 0
rgrover1 786:d6d7087d8377 44
rgrover1 786:d6d7087d8377 45 #if 0
rgrover1 832:5dac246f8f02 46 #define INFO(x, ...) printf("[EddyStone: INFO]"x " \t[%s,%d]\r\n", \
rgrover1 832:5dac246f8f02 47 ## __VA_ARGS__, \
rgrover1 832:5dac246f8f02 48 __FILE__, \
rgrover1 832:5dac246f8f02 49 __LINE__);
rgrover1 832:5dac246f8f02 50 #else // if 0
rgrover1 786:d6d7087d8377 51 #define INFO(x, ...)
rgrover1 832:5dac246f8f02 52 #endif // if 0
rgrover1 771:26b809199308 53
rgrover1 771:26b809199308 54 /**
rgrover1 771:26b809199308 55 * @class Eddystone
rgrover1 771:26b809199308 56 * @brief Eddystone Configuration Service. Can be used to set URL, adjust power levels, and set flags.
rgrover1 771:26b809199308 57 * See https://github.com/google/eddystone
rgrover1 771:26b809199308 58 *
rgrover1 771:26b809199308 59 */
rgrover1 771:26b809199308 60 class EddystoneService
rgrover1 771:26b809199308 61 {
rgrover1 771:26b809199308 62 public:
rgrover1 830:a6ef72e0697a 63 enum FrameTypes {
rgrover1 830:a6ef72e0697a 64 NONE,
rgrover1 830:a6ef72e0697a 65 url,
rgrover1 830:a6ef72e0697a 66 uid,
rgrover1 830:a6ef72e0697a 67 tlm
rgrover1 830:a6ef72e0697a 68 };
rgrover1 786:d6d7087d8377 69
rgrover1 786:d6d7087d8377 70 static const int SERVICE_DATA_MAX = 31; // Maximum size of service data in ADV packets
rgrover1 771:26b809199308 71
rgrover1 786:d6d7087d8377 72 // There are currently 3 subframes defined, URI, UID, and TLM
rgrover1 786:d6d7087d8377 73 #define EDDYSTONE_MAX_FRAMETYPE 3
rgrover1 786:d6d7087d8377 74 void (*frames[EDDYSTONE_MAX_FRAMETYPE])(uint8_t *, uint32_t);
rgrover1 786:d6d7087d8377 75 static const int URI_DATA_MAX = 18;
rgrover1 786:d6d7087d8377 76 typedef uint8_t UriData_t[URI_DATA_MAX];
rgrover1 832:5dac246f8f02 77 CircularBuffer<FrameTypes, EDDYSTONE_MAX_FRAMETYPE> overflow;
rgrover1 771:26b809199308 78
rgrover1 771:26b809199308 79 // UID Frame Type subfields
rgrover1 786:d6d7087d8377 80 static const int UID_NAMESPACEID_SIZE = 10;
rgrover1 786:d6d7087d8377 81 typedef uint8_t UIDNamespaceID_t[UID_NAMESPACEID_SIZE];
rgrover1 786:d6d7087d8377 82 static const int UID_INSTANCEID_SIZE = 6;
rgrover1 786:d6d7087d8377 83 typedef uint8_t UIDInstanceID_t[UID_INSTANCEID_SIZE];
rgrover1 771:26b809199308 84
rgrover1 771:26b809199308 85 // Eddystone Frame Type ID
rgrover1 786:d6d7087d8377 86 static const uint8_t FRAME_TYPE_UID = 0x00;
rgrover1 786:d6d7087d8377 87 static const uint8_t FRAME_TYPE_URL = 0x10;
rgrover1 786:d6d7087d8377 88 static const uint8_t FRAME_TYPE_TLM = 0x20;
rgrover1 785:c74f567162d4 89
rgrover1 786:d6d7087d8377 90 static const uint8_t FRAME_SIZE_TLM = 14; // TLM frame is a constant 14Bytes
rgrover1 785:c74f567162d4 91 static const uint8_t FRAME_SIZE_UID = 20; // includes RFU bytes
rgrover1 783:9959291e9a3f 92
rgrover1 832:5dac246f8f02 93 /**
rgrover1 832:5dac246f8f02 94 * Set Eddystone UID Frame information.
rgrover1 832:5dac246f8f02 95 *
rgrover1 832:5dac246f8f02 96 * @param[in] power TX Power in dB measured at 0 meters from the device. Range of -100 to +20 dB.
rgrover1 832:5dac246f8f02 97 * @param[in] namespaceID 10B namespace ID
rgrover1 832:5dac246f8f02 98 * @param[in] instanceID 6B instance ID
rgrover1 832:5dac246f8f02 99 * @param[in] RFU 2B of RFU, initialized to 0x0000 and not broadcast, included for future reference.
rgrover1 832:5dac246f8f02 100 */
rgrover1 832:5dac246f8f02 101 void setUIDFrameData(int8_t power,
rgrover1 832:5dac246f8f02 102 UIDNamespaceID_t namespaceID,
rgrover1 832:5dac246f8f02 103 UIDInstanceID_t instanceID,
rgrover1 880:af79236bf22c 104 float uidAdvPeriodIn,
rgrover1 832:5dac246f8f02 105 uint16_t RFU = 0x0000) {
rgrover1 880:af79236bf22c 106 if (0.0f == uidAdvPeriodIn) {
rgrover1 830:a6ef72e0697a 107 uidIsSet = false;
rgrover1 830:a6ef72e0697a 108 return;
rgrover1 830:a6ef72e0697a 109 }
rgrover1 832:5dac246f8f02 110 if (power > 20) {
rgrover1 786:d6d7087d8377 111 power = 20;
rgrover1 785:c74f567162d4 112 }
rgrover1 832:5dac246f8f02 113 if (power < -100) {
rgrover1 786:d6d7087d8377 114 power = -100;
rgrover1 786:d6d7087d8377 115 }
rgrover1 832:5dac246f8f02 116
rgrover1 786:d6d7087d8377 117 defaultUidPower = power;
rgrover1 786:d6d7087d8377 118 memcpy(defaultUidNamespaceID, namespaceID, UID_NAMESPACEID_SIZE);
rgrover1 786:d6d7087d8377 119 memcpy(defaultUidInstanceID, instanceID, UID_INSTANCEID_SIZE);
rgrover1 832:5dac246f8f02 120 uidRFU = (uint16_t)RFU; // this is probably bad form, but it doesn't really matter yet.
rgrover1 830:a6ef72e0697a 121 uidAdvPeriod = uidAdvPeriodIn;
rgrover1 832:5dac246f8f02 122 uidIsSet = true; // set toggle to advertise UID frames
rgrover1 785:c74f567162d4 123 }
rgrover1 771:26b809199308 124
rgrover1 784:1e817a72a166 125 /*
rgrover1 786:d6d7087d8377 126 * Construct UID frame from private variables
rgrover1 786:d6d7087d8377 127 * @param[in/out] Data pointer to array to store constructed frame in
rgrover1 832:5dac246f8f02 128 * @param[in] maxSize number of bytes left in array, effectively how much empty space is available to write to
rgrover1 786:d6d7087d8377 129 * @return number of bytes used. negative number indicates error message.
rgrover1 786:d6d7087d8377 130 */
rgrover1 832:5dac246f8f02 131 unsigned constructUIDFrame(uint8_t *Data, uint8_t maxSize) {
rgrover1 832:5dac246f8f02 132 unsigned index = 0;
rgrover1 785:c74f567162d4 133
rgrover1 786:d6d7087d8377 134 Data[index++] = FRAME_TYPE_UID; // 1B Type
rgrover1 832:5dac246f8f02 135
rgrover1 832:5dac246f8f02 136 if (defaultUidPower > 20) {
rgrover1 832:5dac246f8f02 137 defaultUidPower = 20; // enforce range of vaild values.
rgrover1 784:1e817a72a166 138 }
rgrover1 832:5dac246f8f02 139 if (defaultUidPower < -100) {
rgrover1 771:26b809199308 140 defaultUidPower = -100;
rgrover1 771:26b809199308 141 }
rgrover1 786:d6d7087d8377 142 Data[index++] = defaultUidPower; // 1B Power @ 0meter
rgrover1 832:5dac246f8f02 143
rgrover1 830:a6ef72e0697a 144 DBG("UID NamespaceID = '0x");
rgrover1 832:5dac246f8f02 145 for (size_t x = 0; x < UID_NAMESPACEID_SIZE; x++) { // 10B Namespace ID
rgrover1 786:d6d7087d8377 146 Data[index++] = defaultUidNamespaceID[x];
rgrover1 832:5dac246f8f02 147 DBG("%x,", defaultUidNamespaceID[x]);
rgrover1 771:26b809199308 148 }
rgrover1 830:a6ef72e0697a 149 DBG("'\r\n");
rgrover1 832:5dac246f8f02 150
rgrover1 832:5dac246f8f02 151 DBG("UID InstanceID = '0x");
rgrover1 832:5dac246f8f02 152 for (size_t x = 0; x< UID_INSTANCEID_SIZE; x++) { // 6B Instance ID
rgrover1 786:d6d7087d8377 153 Data[index++] = defaultUidInstanceID[x];
rgrover1 832:5dac246f8f02 154 DBG("%x,", defaultUidInstanceID[x]);
rgrover1 771:26b809199308 155 }
rgrover1 830:a6ef72e0697a 156 DBG("'\r\n");
rgrover1 832:5dac246f8f02 157
rgrover1 832:5dac246f8f02 158 if (0 != uidRFU) { // 2B RFU, include if non-zero, otherwise ignore
rgrover1 786:d6d7087d8377 159 Data[index++] = (uint8_t)(uidRFU >> 0);
rgrover1 786:d6d7087d8377 160 Data[index++] = (uint8_t)(uidRFU >> 8);
rgrover1 771:26b809199308 161 }
rgrover1 832:5dac246f8f02 162 DBG("construcUIDFrame %d, %d", maxSize, index);
rgrover1 771:26b809199308 163 return index;
rgrover1 771:26b809199308 164 }
rgrover1 771:26b809199308 165
rgrover1 832:5dac246f8f02 166 /**
rgrover1 832:5dac246f8f02 167 * Set Eddystone URL Frame information.
rgrover1 832:5dac246f8f02 168 * @param[in] power TX Power in dB measured at 0 meters from the device.
rgrover1 832:5dac246f8f02 169 * @param[in] url URL to encode
rgrover1 832:5dac246f8f02 170 * @param[in] urlAdvPeriodIn How long to advertise the URL frame (measured in # of adv periods)
rgrover1 832:5dac246f8f02 171 * @return false on success, true on failure.
rgrover1 832:5dac246f8f02 172 */
rgrover1 880:af79236bf22c 173 bool setURLFrameData(int8_t power, const char *urlIn, float urlAdvPeriodIn) {
rgrover1 880:af79236bf22c 174 if (0.0f == urlAdvPeriodIn) {
rgrover1 830:a6ef72e0697a 175 urlIsSet = false;
rgrover1 830:a6ef72e0697a 176 return false;
rgrover1 830:a6ef72e0697a 177 }
rgrover1 830:a6ef72e0697a 178 encodeURL(urlIn, defaultUriData, defaultUriDataLength); // encode URL to URL Formatting
rgrover1 771:26b809199308 179 if (defaultUriDataLength > URI_DATA_MAX) {
rgrover1 832:5dac246f8f02 180 return true; // error, URL is too big
rgrover1 771:26b809199308 181 }
rgrover1 861:2afa79e3ed0a 182 defaultUrlPower = power;
rgrover1 830:a6ef72e0697a 183 urlAdvPeriod = urlAdvPeriodIn;
rgrover1 832:5dac246f8f02 184 urlIsSet = true;
rgrover1 771:26b809199308 185 return false;
rgrover1 771:26b809199308 186 }
rgrover1 771:26b809199308 187
rgrover1 861:2afa79e3ed0a 188 /**
rgrover1 861:2afa79e3ed0a 189 * Set Eddystone URL Frame information.
rgrover1 861:2afa79e3ed0a 190 * @param[in] power TX Power in dB measured at 0 meters from the device.
rgrover1 861:2afa79e3ed0a 191 * @param[in] encodedUrlIn Encoded URL
rgrover1 861:2afa79e3ed0a 192 * @param[in] encodedUrlInLength Length of the encoded URL
rgrover1 861:2afa79e3ed0a 193 * @param[in] urlAdvPeriodIn How long to advertise the URL frame (measured in # of adv periods)
rgrover1 861:2afa79e3ed0a 194 * @return false on success, true on failure.
rgrover1 861:2afa79e3ed0a 195 */
rgrover1 880:af79236bf22c 196 bool setURLFrameEncodedData(int8_t power, const char *encodedUrlIn, uint8_t encodedUrlInLength, float urlAdvPeriodIn) {
rgrover1 880:af79236bf22c 197 if (0.0f == urlAdvPeriodIn) {
rgrover1 861:2afa79e3ed0a 198 urlIsSet = false;
rgrover1 861:2afa79e3ed0a 199 return false;
rgrover1 861:2afa79e3ed0a 200 }
rgrover1 861:2afa79e3ed0a 201 memcpy(defaultUriData, encodedUrlIn, encodedUrlInLength);
rgrover1 861:2afa79e3ed0a 202 if (defaultUriDataLength > URI_DATA_MAX) {
rgrover1 861:2afa79e3ed0a 203 return true; // error, URL is too big
rgrover1 861:2afa79e3ed0a 204 }
rgrover1 861:2afa79e3ed0a 205 defaultUrlPower = power;
rgrover1 861:2afa79e3ed0a 206 defaultUriDataLength = encodedUrlInLength;
rgrover1 861:2afa79e3ed0a 207 urlAdvPeriod = urlAdvPeriodIn;
rgrover1 861:2afa79e3ed0a 208 urlIsSet = true;
rgrover1 861:2afa79e3ed0a 209 return false;
rgrover1 861:2afa79e3ed0a 210 }
rgrover1 861:2afa79e3ed0a 211
rgrover1 786:d6d7087d8377 212 /*
rgrover1 786:d6d7087d8377 213 * Construct URL frame from private variables
rgrover1 786:d6d7087d8377 214 * @param[in/out] Data pointer to array to store constructed frame in
rgrover1 786:d6d7087d8377 215 * @param[in] maxSize number of bytes left in array, effectively how much emtpy space is available to write to
rgrover1 786:d6d7087d8377 216 * @return number of bytes used. negative number indicates error message.
rgrover1 786:d6d7087d8377 217 */
rgrover1 832:5dac246f8f02 218 int constructURLFrame(uint8_t *Data, uint8_t maxSize) {
rgrover1 786:d6d7087d8377 219 int index = 0;
rgrover1 786:d6d7087d8377 220 Data[index++] = FRAME_TYPE_URL; // 1B Type
rgrover1 786:d6d7087d8377 221 Data[index++] = defaultUrlPower; // 1B TX Power
rgrover1 832:5dac246f8f02 222 for (int x = 0; x < defaultUriDataLength; x++) { // 18B of URL Prefix + encoded URL
rgrover1 786:d6d7087d8377 223 Data[index++] = defaultUriData[x];
rgrover1 771:26b809199308 224 }
rgrover1 832:5dac246f8f02 225 DBG("constructURLFrame: %d, %d", maxSize, index);
rgrover1 786:d6d7087d8377 226 return index;
rgrover1 786:d6d7087d8377 227 }
rgrover1 771:26b809199308 228
rgrover1 786:d6d7087d8377 229 /*
rgrover1 786:d6d7087d8377 230 * Set Eddystone TLM Frame information.
rgrover1 786:d6d7087d8377 231 * @param[in] Version of the TLM beacon data format
rgrover1 830:a6ef72e0697a 232 * @param[in] advPeriod how often to advertise the TLM frame for (in minutes)
rgrover1 786:d6d7087d8377 233 * @param batteryVoltage in milivolts
rgrover1 786:d6d7087d8377 234 * @param beaconTemp in 8.8 floating point notation
rgrover1 786:d6d7087d8377 235 *
rgrover1 786:d6d7087d8377 236 */
rgrover1 832:5dac246f8f02 237 void setTLMFrameData(uint8_t version = 0,
rgrover1 880:af79236bf22c 238 float advPeriod = 60.0f,
rgrover1 832:5dac246f8f02 239 uint16_t batteryVoltage = 0,
rgrover1 880:af79236bf22c 240 uint16_t beaconTemp = 0x8000,
rgrover1 832:5dac246f8f02 241 uint32_t pduCount = 0,
rgrover1 832:5dac246f8f02 242 uint32_t timeSinceBoot = 0) {
rgrover1 880:af79236bf22c 243 if (0.0f == advPeriod) {
rgrover1 830:a6ef72e0697a 244 tlmIsSet = false;
rgrover1 830:a6ef72e0697a 245 return;
rgrover1 830:a6ef72e0697a 246 }
rgrover1 832:5dac246f8f02 247 TlmVersion = version;
rgrover1 786:d6d7087d8377 248 TlmBatteryVoltage = batteryVoltage;
rgrover1 832:5dac246f8f02 249 TlmBeaconTemp = beaconTemp;
rgrover1 832:5dac246f8f02 250 TlmPduCount = pduCount; // reset
rgrover1 832:5dac246f8f02 251 TlmTimeSinceBoot = timeSinceBoot; // reset
rgrover1 832:5dac246f8f02 252 TlmAdvPeriod = advPeriod;
rgrover1 832:5dac246f8f02 253 tlmIsSet = true; // TLM Data has been enabled
rgrover1 786:d6d7087d8377 254 }
rgrover1 771:26b809199308 255
rgrover1 786:d6d7087d8377 256 /*
rgrover1 786:d6d7087d8377 257 * Construct TLM frame from private variables
rgrover1 786:d6d7087d8377 258 * @param[in/out] Data pointer to array to store constructed frame in
rgrover1 786:d6d7087d8377 259 * @param[in] maxSize number of bytes left in array, effectively how much emtpy space is available to write to
rgrover1 786:d6d7087d8377 260 * @return number of bytes used. negative number indicates error message.
rgrover1 786:d6d7087d8377 261 */
rgrover1 832:5dac246f8f02 262 int constructTLMFrame(uint8_t *Data, uint8_t maxSize) {
rgrover1 861:2afa79e3ed0a 263 uint32_t now = timeSinceBootTimer.read_ms();
rgrover1 861:2afa79e3ed0a 264 TlmTimeSinceBoot += (now - lastBootTimerRead) / 100;
rgrover1 861:2afa79e3ed0a 265 lastBootTimerRead = now;
rgrover1 861:2afa79e3ed0a 266
rgrover1 786:d6d7087d8377 267 int index = 0;
rgrover1 786:d6d7087d8377 268 Data[index++] = FRAME_TYPE_TLM; // Eddystone frame type = Telemetry
rgrover1 786:d6d7087d8377 269 Data[index++] = TlmVersion; // TLM Version Number
rgrover1 832:5dac246f8f02 270 Data[index++] = (uint8_t)(TlmBatteryVoltage >> 8); // Battery Voltage[0]
rgrover1 832:5dac246f8f02 271 Data[index++] = (uint8_t)(TlmBatteryVoltage >> 0); // Battery Voltage[1]
rgrover1 832:5dac246f8f02 272 Data[index++] = (uint8_t)(TlmBeaconTemp >> 8); // Beacon Temp[0]
rgrover1 832:5dac246f8f02 273 Data[index++] = (uint8_t)(TlmBeaconTemp >> 0); // Beacon Temp[1]
rgrover1 832:5dac246f8f02 274 Data[index++] = (uint8_t)(TlmPduCount >> 24); // PDU Count [0]
rgrover1 832:5dac246f8f02 275 Data[index++] = (uint8_t)(TlmPduCount >> 16); // PDU Count [1]
rgrover1 832:5dac246f8f02 276 Data[index++] = (uint8_t)(TlmPduCount >> 8); // PDU Count [2]
rgrover1 832:5dac246f8f02 277 Data[index++] = (uint8_t)(TlmPduCount >> 0); // PDU Count [3]
rgrover1 832:5dac246f8f02 278 Data[index++] = (uint8_t)(TlmTimeSinceBoot >> 24); // Time Since Boot [0]
rgrover1 832:5dac246f8f02 279 Data[index++] = (uint8_t)(TlmTimeSinceBoot >> 16); // Time Since Boot [1]
rgrover1 832:5dac246f8f02 280 Data[index++] = (uint8_t)(TlmTimeSinceBoot >> 8); // Time Since Boot [2]
rgrover1 832:5dac246f8f02 281 Data[index++] = (uint8_t)(TlmTimeSinceBoot >> 0); // Time Since Boot [3]
rgrover1 832:5dac246f8f02 282 DBG("constructURLFrame: %d, %d", maxSize, index);
rgrover1 771:26b809199308 283 return index;
rgrover1 771:26b809199308 284 }
rgrover1 771:26b809199308 285
rgrover1 771:26b809199308 286 /*
rgrover1 786:d6d7087d8377 287 * Update the TLM frame battery voltage value
rgrover1 786:d6d7087d8377 288 * @param[in] voltagemv Voltage to update the TLM field battery voltage with (in mV)
rgrover1 786:d6d7087d8377 289 * @return nothing
rgrover1 786:d6d7087d8377 290 */
rgrover1 786:d6d7087d8377 291 void updateTlmBatteryVoltage(uint16_t voltagemv) {
rgrover1 786:d6d7087d8377 292 TlmBatteryVoltage = voltagemv;
rgrover1 786:d6d7087d8377 293 }
rgrover1 786:d6d7087d8377 294
rgrover1 786:d6d7087d8377 295 /*
rgrover1 786:d6d7087d8377 296 * Update the TLM frame beacon temperature
rgrover1 786:d6d7087d8377 297 * @param[in] temp Temperature of beacon (in 8.8fpn)
rgrover1 786:d6d7087d8377 298 * @return nothing
rgrover1 786:d6d7087d8377 299 */
rgrover1 786:d6d7087d8377 300 void updateTlmBeaconTemp(uint16_t temp) {
rgrover1 786:d6d7087d8377 301 TlmBeaconTemp = temp;
rgrover1 786:d6d7087d8377 302 }
rgrover1 786:d6d7087d8377 303
rgrover1 786:d6d7087d8377 304 /*
rgrover1 786:d6d7087d8377 305 * Update the TLM frame PDU Count field
rgrover1 786:d6d7087d8377 306 * @param[in] pduCount Number of Advertisiting frames sent since powerup
rgrover1 786:d6d7087d8377 307 * @return nothing
rgrover1 786:d6d7087d8377 308 */
rgrover1 786:d6d7087d8377 309 void updateTlmPduCount(uint32_t pduCount) {
rgrover1 786:d6d7087d8377 310 TlmPduCount = pduCount;
rgrover1 771:26b809199308 311 }
rgrover1 771:26b809199308 312
rgrover1 771:26b809199308 313 /*
rgrover1 786:d6d7087d8377 314 * Update the TLM frame Time since boot in 0.1s incriments
rgrover1 786:d6d7087d8377 315 * @param[in] timeSinceBoot Time since boot in 0.1s incriments
rgrover1 786:d6d7087d8377 316 * @return nothing
rgrover1 786:d6d7087d8377 317 */
rgrover1 786:d6d7087d8377 318 void updateTlmTimeSinceBoot(uint32_t timeSinceBoot) {
rgrover1 786:d6d7087d8377 319 TlmTimeSinceBoot = timeSinceBoot;
rgrover1 786:d6d7087d8377 320 }
rgrover1 771:26b809199308 321
rgrover1 786:d6d7087d8377 322 /*
rgrover1 786:d6d7087d8377 323 * Update advertising data
rgrover1 786:d6d7087d8377 324 * @return true on success, false on failure
rgrover1 786:d6d7087d8377 325 */
rgrover1 786:d6d7087d8377 326 bool updateAdvPacket(uint8_t serviceData[], unsigned serviceDataLen) {
rgrover1 786:d6d7087d8377 327 // Fields from the Service
rgrover1 786:d6d7087d8377 328 DBG("Updating AdvFrame: %d", serviceDataLen);
rgrover1 832:5dac246f8f02 329
rgrover1 786:d6d7087d8377 330 ble.clearAdvertisingPayload();
rgrover1 830:a6ef72e0697a 331 ble.setAdvertisingType(GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED);
rgrover1 830:a6ef72e0697a 332 ble.setAdvertisingInterval(100);
rgrover1 786:d6d7087d8377 333 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
rgrover1 786:d6d7087d8377 334 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, BEACON_EDDYSTONE, sizeof(BEACON_EDDYSTONE));
rgrover1 786:d6d7087d8377 335 ble.accumulateAdvertisingPayload(GapAdvertisingData::SERVICE_DATA, serviceData, serviceDataLen);
rgrover1 786:d6d7087d8377 336
rgrover1 830:a6ef72e0697a 337
rgrover1 786:d6d7087d8377 338 return true;
rgrover1 786:d6d7087d8377 339 }
rgrover1 786:d6d7087d8377 340
rgrover1 786:d6d7087d8377 341 /*
rgrover1 786:d6d7087d8377 342 * State machine for switching out frames.
rgrover1 786:d6d7087d8377 343 * This function is called by the radioNotificationCallback when a frame needs to get swapped out.
rgrover1 786:d6d7087d8377 344 * This function exists because of time constraints in the radioNotificationCallback, so it is effectively
rgrover1 786:d6d7087d8377 345 * broken up into two functions.
rgrover1 786:d6d7087d8377 346 */
rgrover1 830:a6ef72e0697a 347 void swapOutFrames(FrameTypes frameType) {
rgrover1 832:5dac246f8f02 348 uint8_t serviceData[SERVICE_DATA_MAX];
rgrover1 771:26b809199308 349 unsigned serviceDataLen = 0;
rgrover1 786:d6d7087d8377 350 //hard code in the eddystone UUID
rgrover1 771:26b809199308 351 serviceData[serviceDataLen++] = BEACON_EDDYSTONE[0];
rgrover1 771:26b809199308 352 serviceData[serviceDataLen++] = BEACON_EDDYSTONE[1];
rgrover1 771:26b809199308 353
rgrover1 771:26b809199308 354 // if certain frames are not enabled, then skip them. Worst case TLM is always enabled
rgrover1 832:5dac246f8f02 355 switch (frameType) {
rgrover1 830:a6ef72e0697a 356 case tlm:
rgrover1 830:a6ef72e0697a 357 // TLM frame
rgrover1 832:5dac246f8f02 358 if (tlmIsSet) {
rgrover1 832:5dac246f8f02 359 DBG("Swapping in TLM Frame: version=%x, Batt=%d, Temp = %d, PDUCnt = %d, TimeSinceBoot=%d",
rgrover1 832:5dac246f8f02 360 TlmVersion,
rgrover1 832:5dac246f8f02 361 TlmBatteryVoltage,
rgrover1 832:5dac246f8f02 362 TlmBeaconTemp,
rgrover1 832:5dac246f8f02 363 TlmPduCount,
rgrover1 832:5dac246f8f02 364 TlmTimeSinceBoot);
rgrover1 832:5dac246f8f02 365 serviceDataLen += constructTLMFrame(serviceData + serviceDataLen, 20);
rgrover1 832:5dac246f8f02 366 DBG("\t Swapping in TLM Frame: len=%d", serviceDataLen);
rgrover1 832:5dac246f8f02 367 updateAdvPacket(serviceData, serviceDataLen);
rgrover1 830:a6ef72e0697a 368 }
rgrover1 830:a6ef72e0697a 369 break;
rgrover1 830:a6ef72e0697a 370 case url:
rgrover1 771:26b809199308 371 // URL Frame
rgrover1 832:5dac246f8f02 372 if (urlIsSet) {
rgrover1 832:5dac246f8f02 373 DBG("Swapping in URL Frame: Power: %d", defaultUrlPower);
rgrover1 832:5dac246f8f02 374 serviceDataLen += constructURLFrame(serviceData + serviceDataLen, 20);
rgrover1 832:5dac246f8f02 375 DBG("\t Swapping in URL Frame: len=%d ", serviceDataLen);
rgrover1 832:5dac246f8f02 376 updateAdvPacket(serviceData, serviceDataLen);
rgrover1 830:a6ef72e0697a 377 //switchFlag = false;
rgrover1 771:26b809199308 378 }
rgrover1 830:a6ef72e0697a 379 break;
rgrover1 830:a6ef72e0697a 380 case uid:
rgrover1 771:26b809199308 381 // UID Frame
rgrover1 832:5dac246f8f02 382 if (uidIsSet) {
rgrover1 832:5dac246f8f02 383 DBG("Swapping in UID Frame: Power: %d", defaultUidPower);
rgrover1 832:5dac246f8f02 384 serviceDataLen += constructUIDFrame(serviceData + serviceDataLen, 20);
rgrover1 832:5dac246f8f02 385 DBG("\t Swapping in UID Frame: len=%d", serviceDataLen);
rgrover1 832:5dac246f8f02 386 updateAdvPacket(serviceData, serviceDataLen);
rgrover1 830:a6ef72e0697a 387 //switchFlag = false;
rgrover1 771:26b809199308 388 }
rgrover1 830:a6ef72e0697a 389 break;
rgrover1 771:26b809199308 390 default:
rgrover1 830:a6ef72e0697a 391 ERR("You have not initialized a Frame yet, please initialize one before starting a beacon");
rgrover1 830:a6ef72e0697a 392 ERR("uidIsSet = %d, urlIsSet = %d, tlmIsSet = %d", uidIsSet, urlIsSet, tlmIsSet);
rgrover1 830:a6ef72e0697a 393 }
rgrover1 830:a6ef72e0697a 394 }
rgrover1 830:a6ef72e0697a 395
rgrover1 830:a6ef72e0697a 396 /*
rgrover1 830:a6ef72e0697a 397 * Callback to swap in URL frame
rgrover1 830:a6ef72e0697a 398 */
rgrover1 830:a6ef72e0697a 399 void urlCallback(void) {
rgrover1 830:a6ef72e0697a 400 DBG("urlCallback");
rgrover1 832:5dac246f8f02 401 if (false == advLock) {
rgrover1 830:a6ef72e0697a 402 advLock = true;
rgrover1 830:a6ef72e0697a 403 DBG("advLock = url")
rgrover1 830:a6ef72e0697a 404 frameIndex = url;
rgrover1 830:a6ef72e0697a 405 swapOutFrames(frameIndex);
rgrover1 830:a6ef72e0697a 406 ble.startAdvertising();
rgrover1 830:a6ef72e0697a 407 } else {
rgrover1 830:a6ef72e0697a 408 // Someone else is broadcasting, toss it into the overflow buffer to retransmit when free
rgrover1 832:5dac246f8f02 409 INFO("URI(%d) cannot complete, %d is currently broadcasting", url, frameIndex);
rgrover1 830:a6ef72e0697a 410 FrameTypes x = url;
rgrover1 830:a6ef72e0697a 411 overflow.push(x);
rgrover1 830:a6ef72e0697a 412 }
rgrover1 830:a6ef72e0697a 413 }
rgrover1 830:a6ef72e0697a 414
rgrover1 830:a6ef72e0697a 415 /*
rgrover1 830:a6ef72e0697a 416 * Callback to swap in UID frame
rgrover1 830:a6ef72e0697a 417 */
rgrover1 830:a6ef72e0697a 418 void uidCallback(void) {
rgrover1 830:a6ef72e0697a 419 DBG("uidCallback");
rgrover1 832:5dac246f8f02 420 if (false == advLock) {
rgrover1 830:a6ef72e0697a 421 advLock = true;
rgrover1 830:a6ef72e0697a 422 DBG("advLock = uid")
rgrover1 830:a6ef72e0697a 423 frameIndex = uid;
rgrover1 830:a6ef72e0697a 424 swapOutFrames(frameIndex);
rgrover1 830:a6ef72e0697a 425 ble.startAdvertising();
rgrover1 830:a6ef72e0697a 426 } else {
rgrover1 830:a6ef72e0697a 427 // Someone else is broadcasting, toss it into the overflow buffer to retransmit when free
rgrover1 832:5dac246f8f02 428 INFO("UID(%d) cannot complete, %d is currently broadcasting", uid, frameIndex);
rgrover1 830:a6ef72e0697a 429 FrameTypes x = uid; // have to do this to satisfy cont vs volatile keywords... sigh...
rgrover1 830:a6ef72e0697a 430 overflow.push(x);
rgrover1 830:a6ef72e0697a 431 }
rgrover1 830:a6ef72e0697a 432 }
rgrover1 830:a6ef72e0697a 433
rgrover1 830:a6ef72e0697a 434 /*
rgrover1 830:a6ef72e0697a 435 * Callback to swap in TLM frame
rgrover1 830:a6ef72e0697a 436 */
rgrover1 830:a6ef72e0697a 437 void tlmCallback(void) {
rgrover1 830:a6ef72e0697a 438 DBG("tlmCallback");
rgrover1 832:5dac246f8f02 439 if (false == advLock) {
rgrover1 830:a6ef72e0697a 440 // OK to broadcast
rgrover1 830:a6ef72e0697a 441 advLock = true;
rgrover1 830:a6ef72e0697a 442 DBG("advLock = tlm")
rgrover1 830:a6ef72e0697a 443 frameIndex = tlm;
rgrover1 830:a6ef72e0697a 444 swapOutFrames(frameIndex);
rgrover1 830:a6ef72e0697a 445 ble.startAdvertising();
rgrover1 830:a6ef72e0697a 446 } else {
rgrover1 830:a6ef72e0697a 447 // Someone else is broadcasting, toss it into the overflow buffer to retransmit when free
rgrover1 832:5dac246f8f02 448 INFO("TLM(%d) cannot complete, %d is currently broadcasting", tlm, frameIndex);
rgrover1 830:a6ef72e0697a 449 FrameTypes x = tlm;
rgrover1 830:a6ef72e0697a 450 overflow.push(x);
rgrover1 830:a6ef72e0697a 451 }
rgrover1 830:a6ef72e0697a 452 }
rgrover1 830:a6ef72e0697a 453
rgrover1 830:a6ef72e0697a 454 void stopAdvCallback(void) {
rgrover1 832:5dac246f8f02 455 if (overflow.empty()) {
rgrover1 830:a6ef72e0697a 456 // if nothing left to transmit, stop
rgrover1 830:a6ef72e0697a 457 ble.stopAdvertising();
rgrover1 830:a6ef72e0697a 458 advLock = false; // unlock lock
rgrover1 830:a6ef72e0697a 459 } else {
rgrover1 830:a6ef72e0697a 460 // transmit other packets at current time index
rgrover1 830:a6ef72e0697a 461 FrameTypes x = NONE;
rgrover1 830:a6ef72e0697a 462 overflow.pop(x);
rgrover1 832:5dac246f8f02 463 INFO("Re-Transmitting %d", x);
rgrover1 830:a6ef72e0697a 464 swapOutFrames(x);
rgrover1 771:26b809199308 465 }
rgrover1 771:26b809199308 466 }
rgrover1 771:26b809199308 467
rgrover1 771:26b809199308 468 /*
rgrover1 786:d6d7087d8377 469 * Callback from onRadioNotification(), used to update the PDUCounter and process next state.
rgrover1 786:d6d7087d8377 470 */
rgrover1 786:d6d7087d8377 471 #define EDDYSTONE_SWAPFRAME_DELAYMS 1
rgrover1 771:26b809199308 472 void radioNotificationCallback(bool radioActive) {
rgrover1 771:26b809199308 473 // Update PDUCount
rgrover1 771:26b809199308 474 TlmPduCount++;
rgrover1 830:a6ef72e0697a 475 // True just before an frame is sent, false just after a frame is sent
rgrover1 832:5dac246f8f02 476 if (radioActive) {
rgrover1 786:d6d7087d8377 477 // Do Nothing
rgrover1 786:d6d7087d8377 478 } else {
rgrover1 830:a6ef72e0697a 479 // Packet has been sent, disable advertising
rgrover1 830:a6ef72e0697a 480 stopAdv.attach_us(this, &EddystoneService::stopAdvCallback, 1);
rgrover1 771:26b809199308 481 }
rgrover1 786:d6d7087d8377 482 }
rgrover1 786:d6d7087d8377 483
rgrover1 786:d6d7087d8377 484 /*
rgrover1 786:d6d7087d8377 485 * This function explicityly sets the parameters used by the Eddystone beacon.
rgrover1 786:d6d7087d8377 486 * this function should be used in leu of the config service.
rgrover1 786:d6d7087d8377 487 *
rgrover1 786:d6d7087d8377 488 * @param bleIn ble object used to broadcast eddystone information
rgrover1 830:a6ef72e0697a 489 * @param beaconPeriodus is how often ble broadcasts are mde, in mili seconds
rgrover1 786:d6d7087d8377 490 * @param txPowerLevel sets the broadcasting power level.
rgrover1 786:d6d7087d8377 491 *
rgrover1 786:d6d7087d8377 492 */
rgrover1 832:5dac246f8f02 493 EddystoneService(BLEDevice &bleIn,
rgrover1 832:5dac246f8f02 494 uint16_t beaconPeriodus = 100,
rgrover1 832:5dac246f8f02 495 uint8_t txPowerIn = 0) :
rgrover1 830:a6ef72e0697a 496 ble(bleIn),
rgrover1 830:a6ef72e0697a 497 advPeriodus(beaconPeriodus),
rgrover1 830:a6ef72e0697a 498 txPower(txPowerIn),
rgrover1 830:a6ef72e0697a 499 advLock(false),
rgrover1 830:a6ef72e0697a 500 frameIndex(NONE) {
rgrover1 830:a6ef72e0697a 501 }
rgrover1 830:a6ef72e0697a 502
rgrover1 830:a6ef72e0697a 503 /*
rgrover1 830:a6ef72e0697a 504 * @breif this function starts eddystone advertising based on configured frames.
rgrover1 830:a6ef72e0697a 505 */
rgrover1 830:a6ef72e0697a 506 void start(void) {
rgrover1 830:a6ef72e0697a 507 // Initialize Frame transition, start with URL to pass eddystone validator app on first try
rgrover1 830:a6ef72e0697a 508 if (urlIsSet) {
rgrover1 830:a6ef72e0697a 509 frameIndex = url;
rgrover1 880:af79236bf22c 510 urlTicker.attach(this, &EddystoneService::urlCallback, (float) advPeriodus / 1000.0f);
rgrover1 830:a6ef72e0697a 511 DBG("attached urlCallback every %d seconds", urlAdvPeriod);
rgrover1 786:d6d7087d8377 512 }
rgrover1 830:a6ef72e0697a 513 if (uidIsSet) {
rgrover1 830:a6ef72e0697a 514 frameIndex = uid;
rgrover1 830:a6ef72e0697a 515 uidTicker.attach(this, &EddystoneService::uidCallback, uidAdvPeriod);
rgrover1 830:a6ef72e0697a 516 DBG("attached uidCallback every %d seconds", uidAdvPeriod);
rgrover1 830:a6ef72e0697a 517 }
rgrover1 832:5dac246f8f02 518 if (tlmIsSet) {
rgrover1 830:a6ef72e0697a 519 frameIndex = tlm;
rgrover1 830:a6ef72e0697a 520 // Make double sure the PDUCount and TimeSinceBoot fields are set to zero at reset
rgrover1 830:a6ef72e0697a 521 updateTlmPduCount(0);
rgrover1 830:a6ef72e0697a 522 updateTlmTimeSinceBoot(0);
rgrover1 861:2afa79e3ed0a 523 lastBootTimerRead = 0;
rgrover1 861:2afa79e3ed0a 524 timeSinceBootTimer.start();
rgrover1 830:a6ef72e0697a 525 tlmTicker.attach(this, &EddystoneService::tlmCallback, TlmAdvPeriod);
rgrover1 830:a6ef72e0697a 526 DBG("attached tlmCallback every %d seconds", TlmAdvPeriod);
rgrover1 830:a6ef72e0697a 527 }
rgrover1 832:5dac246f8f02 528 if (NONE == frameIndex) {
rgrover1 830:a6ef72e0697a 529 error("No Frames were Initialized! Please initialize a frame before starting an eddystone beacon.");
rgrover1 830:a6ef72e0697a 530 }
rgrover1 830:a6ef72e0697a 531 //uidRFU = 0;
rgrover1 786:d6d7087d8377 532
rgrover1 832:5dac246f8f02 533 ble.setTxPower(txPower);
rgrover1 832:5dac246f8f02 534 ble.gap().onRadioNotification(this, &EddystoneService::radioNotificationCallback);
rgrover1 771:26b809199308 535 }
rgrover1 771:26b809199308 536
rgrover1 771:26b809199308 537 private:
rgrover1 786:d6d7087d8377 538
rgrover1 830:a6ef72e0697a 539 // Eddystone Variables
rgrover1 786:d6d7087d8377 540 BLEDevice &ble;
rgrover1 830:a6ef72e0697a 541 uint16_t advPeriodus;
rgrover1 830:a6ef72e0697a 542 uint8_t txPower;
rgrover1 861:2afa79e3ed0a 543 Timer timeSinceBootTimer;
rgrover1 861:2afa79e3ed0a 544 volatile uint32_t lastBootTimerRead;
rgrover1 830:a6ef72e0697a 545 volatile bool advLock;
rgrover1 830:a6ef72e0697a 546 volatile FrameTypes frameIndex;
rgrover1 830:a6ef72e0697a 547 Timeout stopAdv;
rgrover1 830:a6ef72e0697a 548
rgrover1 830:a6ef72e0697a 549
rgrover1 830:a6ef72e0697a 550 // URI Frame Variables
rgrover1 830:a6ef72e0697a 551 uint8_t defaultUriDataLength;
rgrover1 786:d6d7087d8377 552 UriData_t defaultUriData;
rgrover1 830:a6ef72e0697a 553 int8_t defaultUrlPower;
rgrover1 830:a6ef72e0697a 554 bool urlIsSet; // flag that enables / disable URI Frames
rgrover1 880:af79236bf22c 555 float urlAdvPeriod; // how long the url frame will be advertised for
rgrover1 830:a6ef72e0697a 556 Ticker urlTicker;
rgrover1 830:a6ef72e0697a 557
rgrover1 830:a6ef72e0697a 558 // UID Frame Variables
rgrover1 786:d6d7087d8377 559 UIDNamespaceID_t defaultUidNamespaceID;
rgrover1 786:d6d7087d8377 560 UIDInstanceID_t defaultUidInstanceID;
rgrover1 786:d6d7087d8377 561 int8_t defaultUidPower;
rgrover1 786:d6d7087d8377 562 uint16_t uidRFU;
rgrover1 830:a6ef72e0697a 563 bool uidIsSet; // flag that enables / disable UID Frames
rgrover1 880:af79236bf22c 564 float uidAdvPeriod; // how long the uid frame will be advertised for
rgrover1 830:a6ef72e0697a 565 Ticker uidTicker;
rgrover1 786:d6d7087d8377 566
rgrover1 830:a6ef72e0697a 567 // TLM Frame Variables
rgrover1 832:5dac246f8f02 568 uint8_t TlmVersion;
rgrover1 832:5dac246f8f02 569 volatile uint16_t TlmBatteryVoltage;
rgrover1 832:5dac246f8f02 570 volatile uint16_t TlmBeaconTemp;
rgrover1 832:5dac246f8f02 571 volatile uint32_t TlmPduCount;
rgrover1 832:5dac246f8f02 572 volatile uint32_t TlmTimeSinceBoot;
rgrover1 832:5dac246f8f02 573 bool tlmIsSet; // flag that enables / disables TLM frames
rgrover1 880:af79236bf22c 574 float TlmAdvPeriod; // number of minutes between adv frames
rgrover1 832:5dac246f8f02 575 Ticker tlmTicker;
rgrover1 771:26b809199308 576
rgrover1 771:26b809199308 577 public:
rgrover1 771:26b809199308 578 /*
rgrover1 771:26b809199308 579 * Encode a human-readable URI into the binary format defined by URIBeacon spec (https://github.com/google/uribeacon/tree/master/specification).
rgrover1 771:26b809199308 580 */
rgrover1 830:a6ef72e0697a 581 static void encodeURL(const char *uriDataIn, UriData_t uriDataOut, uint8_t &sizeofURIDataOut) {
rgrover1 832:5dac246f8f02 582 DBG("Encode URL = %s", uriDataIn);
rgrover1 832:5dac246f8f02 583 const char *prefixes[] = {
rgrover1 771:26b809199308 584 "http://www.",
rgrover1 771:26b809199308 585 "https://www.",
rgrover1 771:26b809199308 586 "http://",
rgrover1 771:26b809199308 587 "https://",
rgrover1 771:26b809199308 588 };
rgrover1 771:26b809199308 589 const size_t NUM_PREFIXES = sizeof(prefixes) / sizeof(char *);
rgrover1 832:5dac246f8f02 590 const char *suffixes[] = {
rgrover1 771:26b809199308 591 ".com/",
rgrover1 771:26b809199308 592 ".org/",
rgrover1 771:26b809199308 593 ".edu/",
rgrover1 771:26b809199308 594 ".net/",
rgrover1 771:26b809199308 595 ".info/",
rgrover1 771:26b809199308 596 ".biz/",
rgrover1 771:26b809199308 597 ".gov/",
rgrover1 771:26b809199308 598 ".com",
rgrover1 771:26b809199308 599 ".org",
rgrover1 771:26b809199308 600 ".edu",
rgrover1 771:26b809199308 601 ".net",
rgrover1 771:26b809199308 602 ".info",
rgrover1 771:26b809199308 603 ".biz",
rgrover1 771:26b809199308 604 ".gov"
rgrover1 771:26b809199308 605 };
rgrover1 771:26b809199308 606 const size_t NUM_SUFFIXES = sizeof(suffixes) / sizeof(char *);
rgrover1 771:26b809199308 607
rgrover1 771:26b809199308 608 sizeofURIDataOut = 0;
rgrover1 771:26b809199308 609 memset(uriDataOut, 0, sizeof(UriData_t));
rgrover1 771:26b809199308 610
rgrover1 771:26b809199308 611 if ((uriDataIn == NULL) || (strlen(uriDataIn) == 0)) {
rgrover1 771:26b809199308 612 return;
rgrover1 771:26b809199308 613 }
rgrover1 771:26b809199308 614
rgrover1 771:26b809199308 615 /*
rgrover1 771:26b809199308 616 * handle prefix
rgrover1 771:26b809199308 617 */
rgrover1 771:26b809199308 618 for (unsigned i = 0; i < NUM_PREFIXES; i++) {
rgrover1 771:26b809199308 619 size_t prefixLen = strlen(prefixes[i]);
rgrover1 771:26b809199308 620 if (strncmp(uriDataIn, prefixes[i], prefixLen) == 0) {
rgrover1 771:26b809199308 621 uriDataOut[sizeofURIDataOut++] = i;
rgrover1 771:26b809199308 622 uriDataIn += prefixLen;
rgrover1 771:26b809199308 623 break;
rgrover1 771:26b809199308 624 }
rgrover1 771:26b809199308 625 }
rgrover1 771:26b809199308 626
rgrover1 771:26b809199308 627 /*
rgrover1 771:26b809199308 628 * handle suffixes
rgrover1 771:26b809199308 629 */
rgrover1 771:26b809199308 630 while (*uriDataIn && (sizeofURIDataOut < URI_DATA_MAX)) {
rgrover1 771:26b809199308 631 /* check for suffix match */
rgrover1 771:26b809199308 632 unsigned i;
rgrover1 771:26b809199308 633 for (i = 0; i < NUM_SUFFIXES; i++) {
rgrover1 771:26b809199308 634 size_t suffixLen = strlen(suffixes[i]);
rgrover1 771:26b809199308 635 if (strncmp(uriDataIn, suffixes[i], suffixLen) == 0) {
rgrover1 771:26b809199308 636 uriDataOut[sizeofURIDataOut++] = i;
rgrover1 771:26b809199308 637 uriDataIn += suffixLen;
rgrover1 771:26b809199308 638 break; /* from the for loop for checking against suffixes */
rgrover1 771:26b809199308 639 }
rgrover1 771:26b809199308 640 }
rgrover1 771:26b809199308 641 /* This is the default case where we've got an ordinary character which doesn't match a suffix. */
rgrover1 830:a6ef72e0697a 642 INFO("Encoding URI: No Suffix Found");
rgrover1 771:26b809199308 643 if (i == NUM_SUFFIXES) {
rgrover1 771:26b809199308 644 uriDataOut[sizeofURIDataOut++] = *uriDataIn;
rgrover1 771:26b809199308 645 ++uriDataIn;
rgrover1 771:26b809199308 646 }
rgrover1 771:26b809199308 647 }
rgrover1 771:26b809199308 648 }
rgrover1 771:26b809199308 649 };
rgrover1 771:26b809199308 650
rgrover1 771:26b809199308 651 #endif // SERVICES_EDDYSTONEBEACON_H_