Alex Cordonnier
High level Bluetooth Low Energy API and radio abstraction layer
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BLE_API
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Bluetooth Low Energy
Diff: ble/services/EddystoneService.h
- Revision:
- 784:1e817a72a166
- Parent:
- 783:9959291e9a3f
- Child:
- 785:c74f567162d4
diff -r 9959291e9a3f -r 1e817a72a166 ble/services/EddystoneService.h
--- a/ble/services/EddystoneService.h Tue Aug 11 15:13:13 2015 +0100
+++ b/ble/services/EddystoneService.h Tue Aug 11 15:13:13 2015 +0100
@@ -22,17 +22,22 @@
static const uint8_t BEACON_EDDYSTONE[] = {0xAA, 0xFE};
+//Debug is disabled by default
#if 0
-#define INFO(MSG, ...) printf("[EddyStone: INFO]" MSG " \t[%s,%d]\r\n", ##__VA_ARGS__, __FILE__, __LINE__);
-#define DBG(MSG, ...) printf("[EddyStone: DBG]" MSG " \t[%s,%d]\r\n", ##__VA_ARGS__, __FILE__, __LINE__);
-#define WARN(MSG, ...) printf("[EddyStone: WARN]" MSG " \t[%s,%d]\r\n", ##__VA_ARGS__, __FILE__, __LINE__);
-#define ERR(MSG, ...) printf("[EddyStone: ERR]" MSG " \t[%s,%d]\r\n", ##__VA_ARGS__, __FILE__, __LINE__);
+#define DBG(x, ...) printf("[EddyStone: DBG]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__);
+#define WARN(x, ...) printf("[EddyStone: WARN]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__);
+#define ERR(x, ...) printf("[EddyStone: ERR]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__);
#else
-#define INFO(MSG, ...)
-#define DBG(MSG, ...)
-#define WARN(MSG, ...)
-#define ERR(MSG, ...)
-#endif // if 0
+#define DBG(x, ...) //wait_us(10);
+#define WARN(x, ...) //wait_us(10);
+#define ERR(x, ...)
+#endif
+
+#if 0
+#define INFO(x, ...) printf("[EddyStone: INFO]"x" \t[%s,%d]\r\n", ##__VA_ARGS__,__FILE__,__LINE__);
+#else
+#define INFO(x, ...)
+#endif
/**
* @class Eddystone
@@ -43,222 +48,94 @@
class EddystoneService
{
public:
- static const unsigned ADVERTISING_INTERVAL_MSEC = 1000; // Advertising interval for config service.
- static const size_t SERVICE_DATA_MAX = 31; // Maximum size of service data in ADV packets
+ /**
+ * @brief Transmission Power Modes for UriBeacon
+ */
+
+ static const int ADVERTISING_INTERVAL_MSEC = 1000; // Advertising interval for config service.
+ static const int SERVICE_DATA_MAX = 31; // Maximum size of service data in ADV packets
- static const size_t URI_DATA_MAX = 18;
- typedef uint8_t UriData_t[URI_DATA_MAX];
+ // There are currently 3 subframes defined, URI, UID, and TLM
+#define EDDYSTONE_MAX_FRAMETYPE 3
+ void (*frames[EDDYSTONE_MAX_FRAMETYPE])(uint8_t *, uint32_t);
+ uint8_t frameIndex;
+ static const int URI_DATA_MAX = 18;
+ typedef uint8_t UriData_t[URI_DATA_MAX];
// UID Frame Type subfields
- static const size_t UID_NAMESPACEID_SIZE = 10;
- static const size_t UID_INSTANCEID_SIZE = 6;
- typedef uint8_t UIDNamespaceID_t[UID_NAMESPACEID_SIZE];
- typedef uint8_t UIDInstanceID_t[UID_INSTANCEID_SIZE];
+ static const int UID_NAMESPACEID_SIZE = 10;
+ typedef uint8_t UIDNamespaceID_t[UID_NAMESPACEID_SIZE];
+ static const int UID_INSTANCEID_SIZE = 6;
+ typedef uint8_t UIDInstanceID_t[UID_INSTANCEID_SIZE];
// Eddystone Frame Type ID
- enum {
- FRAME_TYPE_UID = 0x00,
- FRAME_TYPE_URL = 0x10,
- FRAME_TYPE_TLM = 0x20,
- NUM_FRAMETYPES = 3
- };
+ static const uint8_t FRAME_TYPE_UID = 0x00;
+ static const uint8_t FRAME_TYPE_URL = 0x10;
+ static const uint8_t FRAME_TYPE_TLM = 0x20;
+ static const uint8_t FRAME_SIZE_TLM = 14; // TLM frame is a constant 14Bytes
static const uint8_t FRAME_SIZE_UID = 20; // includes RFU bytes
- static const uint8_t FRAME_SIZE_TLM = 14; // TLM frame is a constant 14Bytes
-public:
- /**
- * Constructor: sets up the parameters used by the Eddystone beacon.
- * This function should be used in lieu of the config service.
- *
- * @param bleIn
- * ble object for the underlying controller.
- * @oaram interval
- * This is is how often broadcasts are made (in units of milliseconds).
- * @param txPowerLevel
- * The broadcasting power level (in dbM).
- * @param UIDNamespaceID
- * 10-Byte Namespace UUID.
- * @param UIDInstanceID
- * 6-Byte Instance UUID.
- * @param url
- * Shortened URL to broadcast (pass in as a string).
- * @param tlmVersion
- * version of telemetry data field to use (default to 0x00).
- */
- EddystoneService(BLEDevice &bleIn,
- uint16_t interval = 100,
- uint8_t txPowerLevel = 0,
- const uint8_t *UIDNamespaceID = NULL,
- const uint8_t *UIDInstanceID = NULL,
- const char *url = NULL,
- uint8_t tlmVersion = 0) :
- ble(bleIn),
- uidIsSet(false),
- urlIsSet(false),
- frameIndex(0),
- uidRFU(0),
- switchFlag(true),
- TlmPduCount(0),
- TlmTimeSinceBoot(0)
- {
- // Check optional frames, set their 'isSet' flags appropriately
- if ((UIDNamespaceID != NULL) & (UIDInstanceID != NULL)) {
- setUIDFrameData(txPowerLevel, UIDNamespaceID, UIDInstanceID);
- uidIsSet = true;
- } else if (url != NULL) {
- setURLFrameData(txPowerLevel, url);
- urlIsSet = true;
- } else {
- // Default TLM frame to version 0x00, start all values at zero to be spec compliant.
- setTLMFrameData(tlmVersion, 0x00, 0x00);
+ /*
+ * Set Eddystone UID Frame information.
+ * @param[in] power TX Power in dB measured at 0 meters from the device. Range of -100 to +20 dB.
+ * @param namespaceID 10B namespace ID
+ * @param instanceID 6B instance ID
+ * @param RFU 2B of RFU, initialized to 0x0000 and not broadcast, included for future reference.
+ *
+ */
+ void setUIDFrameData(int8_t power, UIDNamespaceID_t namespaceID, UIDInstanceID_t instanceID, uint16_t RFU = 0x0000) {
+ if(power > 20) {
+ power = 20;
}
-
- ble.gap().setTxPower(txPowerLevel);
- ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED);
- ble.gap().setAdvertisingInterval(interval);
-
- ble.gap().clearAdvertisingPayload();
- ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
- ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, BEACON_EDDYSTONE, sizeof(BEACON_EDDYSTONE));
-
- // Construct TLM Frame in initial advertising.
- uint8_t serviceData[SERVICE_DATA_MAX];
- unsigned serviceDataLen = 0;
- serviceData[serviceDataLen++] = BEACON_EDDYSTONE[0];
- serviceData[serviceDataLen++] = BEACON_EDDYSTONE[1];
- serviceDataLen += constructTLMFrame(serviceData + serviceDataLen, SERVICE_DATA_MAX);
- ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::SERVICE_DATA, serviceData, serviceDataLen);
-
- ble.gap().startAdvertising();
- ble.gap().onRadioNotification(this, &EddystoneService::radioNotificationCallback);
-
- timeSinceBootTick.attach(this, &EddystoneService::tsbCallback, 0.1); // increment the TimeSinceBoot ticker every 0.1s
+ if(power < -100) {
+ power = -100;
+ }
+ defaultUidPower = power;
+ memcpy(defaultUidNamespaceID, namespaceID, UID_NAMESPACEID_SIZE);
+ memcpy(defaultUidInstanceID, instanceID, UID_INSTANCEID_SIZE);
+ uidRFU = (uint16_t)RFU; // this is probably bad form, but it doesnt really matter yet.
+ return;
}
/*
- * Update the TLM frame battery voltage value
- * @param[in] voltagemv Voltage to update the TLM field battery voltage with (in mV)
- * @return nothing
- */
- void updateTlmBatteryVoltage(uint16_t voltagemv) {
- TlmBatteryVoltage = voltagemv;
- }
-
- /*
- * Update the TLM frame beacon temperature
- * @param[in] temp Temperature of beacon (in 8.8fpn)
- * @return nothing
- */
- void updateTlmBeaconTemp(uint16_t temp) {
- TlmBeaconTemp = temp;
- }
-
- /*
- * Update the TLM frame PDU Count field
- * @param[in] pduCount Number of Advertising frames sent since power-up
- */
- void updateTlmPduCount(uint32_t pduCount) {
- TlmPduCount = pduCount;
- }
-
- /*
- * Update the TLM frame Time since boot in 0.1s increments
- * @param[in] timeSinceBoot Time since boot in 0.1s increments
- */
- void updateTlmTimeSinceBoot(uint32_t timeSinceBoot) {
- TlmTimeSinceBoot = timeSinceBoot;
- }
-
-protected:
- /*
- * callback function, called every 0.1s, increments the TimeSinceBoot field in the TLM frame
- */
- virtual void tsbCallback(void) {
- TlmTimeSinceBoot++;
- }
+ * Construct UID frame from private variables
+ * @param[in/out] Data pointer to array to store constructed frame in
+ * @param[in] maxSize number of bytes left in array, effectively how much emtpy space is available to write to
+ * @return number of bytes used. negative number indicates error message.
+ */
+ int constructUIDFrame(uint8_t * Data, uint8_t maxSize) {
-private:
- /*
- * Set Eddystone UID Frame information.
- *
- * @param[in] power TX Power in dB measured at 0 meters from the device. Range of -100 to +20 dB.
- * @param namespaceID 10B namespace ID
- * @param instanceID 6B instance ID
- * @param RFU 2B of RFU, initialized to 0x0000 and not broadcast, included for future reference.
- */
- void setUIDFrameData(int8_t power, const UIDNamespaceID_t namespaceID, const UIDInstanceID_t instanceID, uint16_t RFU = 0x0000) {
- if (power > 20) {
- power = 20;
- }
- if (power < -100) {
- power = -100;
+ int index = 0;
+ Data[index++] = FRAME_TYPE_UID; // 1B Type
+ if(defaultUidPower > 20) {
+ defaultUidPower = 20; // enforce range of vaild values.
}
- defaultUidPower = power;
-
- memcpy(defaultUidNamespaceID, namespaceID, UID_NAMESPACEID_SIZE);
- memcpy(defaultUidInstanceID, instanceID, UID_INSTANCEID_SIZE);
-
- uidRFU = (uint16_t)RFU; // this is probably bad form, but it doesn't really matter yet.
- }
-
- /**
- * Construct UID frame from private variables
- *
- * @param[in,out] data
- * pointer to array to store constructed frame in
- * @param[in] maxSize
- * number of bytes left in array, effectively how much empty space is available to write to
- *
- * @return number of bytes used. negative number indicates error message.
- */
- int constructUIDFrame(uint8_t *data, uint8_t maxSize) {
- if (maxSize < FRAME_SIZE_UID) {
- return -1;
- }
-
- unsigned index = 0;
- data[index++] = FRAME_TYPE_UID; // 1B Type
-
- if (defaultUidPower > 20) { // enforce range of valid values.
- defaultUidPower = 20;
- }
- if (defaultUidPower < -100) {
+ if(defaultUidPower < -100) {
defaultUidPower = -100;
}
- data[index++] = defaultUidPower; // 1B Power @ 0meter
-
- for (size_t x = 0; x < UID_NAMESPACEID_SIZE; x++) { // 10B Namespce ID
- data[index++] = defaultUidNamespaceID[x];
+ Data[index++] = defaultUidPower; // 1B Power @ 0meter
+ for(int x = 0; x < UID_NAMESPACEID_SIZE; x++) { // 10B Namespce ID
+ Data[index++] = defaultUidNamespaceID[x];
}
-
- for (size_t x = 0; x< UID_INSTANCEID_SIZE; x++) { // 6B Instance ID
- data[index++] = defaultUidInstanceID[x];
+ for(int x = 0; x< UID_INSTANCEID_SIZE; x++) { // 6B Instance ID
+ Data[index++] = defaultUidInstanceID[x];
}
-
- if (uidRFU) { // 2B RFU, include if non-zero, otherwise ignore
- data[index++] = (uint8_t)(uidRFU >> 0);
- data[index++] = (uint8_t)(uidRFU >> 8);
+ if(0 != uidRFU) { // 2B RFU, include if non-zero, otherwise ignore
+ Data[index++] = (uint8_t)(uidRFU >> 0);
+ Data[index++] = (uint8_t)(uidRFU >> 8);
}
-
+ DBG("construcUIDFrame %d, %d",maxSize,index);
return index;
}
/*
- * Update advertising data
- * @return true on success, false on failure
- */
- bool updateAdvPacket(const uint8_t serviceData[], unsigned serviceDataLen) {
- return (ble.gap().updateAdvertisingPayload(GapAdvertisingData::SERVICE_DATA, serviceData, serviceDataLen) == BLE_ERROR_NONE);
- }
-
- /*
- * Set Eddystone URL Frame information.
- * @param[in] power TX Power in dB measured at 0 meters from the device.
- * @param url URL to encode
- * @return false on success, true on failure.
- */
- bool setURLFrameData(int8_t power, const char *url) {
+ * Set Eddystone URL Frame information.
+ * @param[in] power TX Power in dB measured at 0 meters from the device.
+ * @param url URL to encode
+ * @return false on success, true on failure.
+ */
+ bool setURLFrameData(int8_t power, const char * url) {
defaultUrlPower = power;
encodeURL(url, defaultUriData, defaultUriDataLength); // encode URL to URL Formatting
if (defaultUriDataLength > URI_DATA_MAX) {
@@ -267,203 +144,325 @@
return false;
}
- /**
- * Construct URL frame from private variables.
- *
- * @param[in,out] data
- * pointer to array to store constructed frame in
- * @param[in] maxSize
- * number of bytes left in array, effectively how much empty space is available to write to.
- *
- * @return number of bytes used. negative number indicates error message.
- */
- int constructURLFrame(uint8_t *data, uint8_t maxSize) {
- if (maxSize < (1 + 1 + defaultUriDataLength)) {
- return -1;
+ /*
+ * Construct URL frame from private variables
+ * @param[in/out] Data pointer to array to store constructed frame in
+ * @param[in] maxSize number of bytes left in array, effectively how much emtpy space is available to write to
+ * @return number of bytes used. negative number indicates error message.
+ */
+ int constructURLFrame(uint8_t * Data, uint8_t maxSize) {
+ int index = 0;
+ Data[index++] = FRAME_TYPE_URL; // 1B Type
+ Data[index++] = defaultUrlPower; // 1B TX Power
+ for(int x = 0; x < defaultUriDataLength; x++) { // 18B of URL Prefix + encoded URL
+ Data[index++] = defaultUriData[x];
}
+ DBG("constructURLFrame: %d, %d",maxSize,index);
+ return index;
+ }
- unsigned index = 0;
- data[index++] = FRAME_TYPE_URL; // 1B Type
- data[index++] = defaultUrlPower; // 1B TX Power
- for (size_t x = 0; x < defaultUriDataLength; x++) { // 18B of URL Prefix + encoded URL
- data[index++] = defaultUriData[x];
- }
+ /*
+ * Set Eddystone TLM Frame information.
+ * @param[in] Version of the TLM beacon data format
+ * @param batteryVoltage in milivolts
+ * @param beaconTemp in 8.8 floating point notation
+ *
+ */
+ void setTLMFrameData(uint8_t version, uint16_t batteryVoltage, uint16_t beaconTemp, uint32_t pduCount = 0, uint32_t timeSinceBoot = 0) {
+ TlmVersion = version;
+ TlmBatteryVoltage = batteryVoltage;
+ TlmBeaconTemp = beaconTemp;
+ TlmPduCount = pduCount; // reset
+ TlmTimeSinceBoot = timeSinceBoot; // reset
+ return;
+ }
+ /*
+ * Construct TLM frame from private variables
+ * @param[in/out] Data pointer to array to store constructed frame in
+ * @param[in] maxSize number of bytes left in array, effectively how much emtpy space is available to write to
+ * @return number of bytes used. negative number indicates error message.
+ */
+ int constructTLMFrame(uint8_t * Data, uint8_t maxSize) {
+ int index = 0;
+ Data[index++] = FRAME_TYPE_TLM; // Eddystone frame type = Telemetry
+ Data[index++] = TlmVersion; // TLM Version Number
+ Data[index++] = (uint8_t)(TlmBatteryVoltage>>8); // Battery Voltage[0]
+ Data[index++] = (uint8_t)(TlmBatteryVoltage>>0); // Battery Voltage[1]
+ Data[index++] = (uint8_t)(TlmBeaconTemp>>8); // Beacon Temp[0]
+ Data[index++] = (uint8_t)(TlmBeaconTemp>>0); // Beacon Temp[1]
+ Data[index++] = (uint8_t)(TlmPduCount>>24); // PDU Count [0]
+ Data[index++] = (uint8_t)(TlmPduCount>>16); // PDU Count [1]
+ Data[index++] = (uint8_t)(TlmPduCount>>8); // PDU Count [2]
+ Data[index++] = (uint8_t)(TlmPduCount>>0); // PDU Count [3]
+ Data[index++] = (uint8_t)(TlmTimeSinceBoot>>24); // Time Since Boot [0]
+ Data[index++] = (uint8_t)(TlmTimeSinceBoot>>16); // Time Since Boot [1]
+ Data[index++] = (uint8_t)(TlmTimeSinceBoot>>8); // Time Since Boot [2]
+ Data[index++] = (uint8_t)(TlmTimeSinceBoot>>0); // Time Since Boot [3]
+ DBG("constructURLFrame: %d, %d",maxSize,index);
return index;
}
/*
- * Set Eddystone TLM Frame information.
- * @param[in] Version of the TLM beacon data format
- * @param batteryVoltage in millivolts
- * @param beaconTemp in 8.8 floating point notation
- *
- */
- void setTLMFrameData(uint8_t version, uint16_t batteryVoltage, uint16_t beaconTemp, uint32_t pduCount = 0, uint32_t timeSinceBoot = 0) {
- TlmVersion = version;
- TlmBatteryVoltage = batteryVoltage;
- TlmBeaconTemp = beaconTemp;
- TlmPduCount = pduCount; // reset
- TlmTimeSinceBoot = timeSinceBoot; // reset
+ * Update the TLM frame battery voltage value
+ * @param[in] voltagemv Voltage to update the TLM field battery voltage with (in mV)
+ * @return nothing
+ */
+ void updateTlmBatteryVoltage(uint16_t voltagemv) {
+ TlmBatteryVoltage = voltagemv;
+ return;
+ }
+
+ /*
+ * Update the TLM frame beacon temperature
+ * @param[in] temp Temperature of beacon (in 8.8fpn)
+ * @return nothing
+ */
+ void updateTlmBeaconTemp(uint16_t temp) {
+ TlmBeaconTemp = temp;
+ return;
+ }
+
+ /*
+ * Update the TLM frame PDU Count field
+ * @param[in] pduCount Number of Advertisiting frames sent since powerup
+ * @return nothing
+ */
+ void updateTlmPduCount(uint32_t pduCount) {
+ TlmPduCount = pduCount;
+ return;
}
/*
- * Construct TLM frame from private variables
- * @param[in,out] data
- * pointer to array to store constructed frame in
- * @param[in] maxSize
- * number of bytes left in array, effectively how much empty space is available to write to.
- *
- * @return number of bytes used. negative number indicates error message.
- */
- int constructTLMFrame(uint8_t *data, uint8_t maxSize) {
- if (maxSize < FRAME_SIZE_TLM) {
- return -1;
- }
+ * Update the TLM frame Time since boot in 0.1s incriments
+ * @param[in] timeSinceBoot Time since boot in 0.1s incriments
+ * @return nothing
+ */
+ void updateTlmTimeSinceBoot(uint32_t timeSinceBoot) {
+ TlmTimeSinceBoot = timeSinceBoot;
+ return;
+ }
- unsigned index = 0;
- data[index++] = FRAME_TYPE_TLM; // Eddystone frame type = Telemetry
- data[index++] = TlmVersion; // TLM Version Number
- data[index++] = (uint8_t)(TlmBatteryVoltage >> 8); // Battery Voltage[0]
- data[index++] = (uint8_t)(TlmBatteryVoltage >> 0); // Battery Voltage[1]
- data[index++] = (uint8_t)(TlmBeaconTemp >> 8); // Beacon Temp[0]
- data[index++] = (uint8_t)(TlmBeaconTemp >> 0); // Beacon Temp[1]
- data[index++] = (uint8_t)(TlmPduCount >> 24); // PDU Count [0]
- data[index++] = (uint8_t)(TlmPduCount >> 16); // PDU Count [1]
- data[index++] = (uint8_t)(TlmPduCount >> 8); // PDU Count [2]
- data[index++] = (uint8_t)(TlmPduCount >> 0); // PDU Count [3]
- data[index++] = (uint8_t)(TlmTimeSinceBoot >> 24); // Time Since Boot [0]
- data[index++] = (uint8_t)(TlmTimeSinceBoot >> 16); // Time Since Boot [1]
- data[index++] = (uint8_t)(TlmTimeSinceBoot >> 8); // Time Since Boot [2]
- data[index++] = (uint8_t)(TlmTimeSinceBoot >> 0); // Time Since Boot [3]
-
- return index;
+ /*
+ * callback function, called every 0.1s, incriments the TimeSinceBoot field in the TLM frame
+ * @return nothing
+ */
+ void tsbCallback(void) {
+ TlmTimeSinceBoot++;
}
/*
- * State machine for switching out frames.
- * This function is called by the radioNotificationCallback when a frame needs to get swapped out.
- * This function exists because of time constraints in the radioNotificationCallback, so it is effectively
- * broken up into two functions.
- */
+ * Update advertising data
+ * @return true on success, false on failure
+ */
+ bool updateAdvPacket(uint8_t serviceData[], unsigned serviceDataLen) {
+ // Fields from the Service
+ DBG("Updating AdvFrame: %d", serviceDataLen);
+// printf("\r\n");
+// for(int x = 0; x<serviceDataLen; x++) {
+// printf("%2.2x:",serviceData[x]);
+// }
+// printf("\r\n");
+ ble.clearAdvertisingPayload();
+ ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
+ ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, BEACON_EDDYSTONE, sizeof(BEACON_EDDYSTONE));
+ ble.accumulateAdvertisingPayload(GapAdvertisingData::SERVICE_DATA, serviceData, serviceDataLen);
+
+ return true;
+ }
+
+ /*
+ * State machine for switching out frames.
+ * This function is called by the radioNotificationCallback when a frame needs to get swapped out.
+ * This function exists because of time constraints in the radioNotificationCallback, so it is effectively
+ * broken up into two functions.
+ */
void swapOutFrames(void) {
uint8_t serviceData[SERVICE_DATA_MAX];
-
- //hard code in the Eddystone UUID
unsigned serviceDataLen = 0;
+ //hard code in the eddystone UUID
serviceData[serviceDataLen++] = BEACON_EDDYSTONE[0];
serviceData[serviceDataLen++] = BEACON_EDDYSTONE[1];
// if certain frames are not enabled, then skip them. Worst case TLM is always enabled
- switch (frameIndex) {
+ switch(frameIndex) {
case 1:
// URL Frame
- if (urlIsSet) {
- INFO("Swapping in URL Frame: Power: %d", defaultUrlPower);
- serviceDataLen += constructURLFrame(serviceData + serviceDataLen, 20);
- DBG("\t Swapping in URL Frame: len=%d ", serviceDataLen);
- updateAdvPacket(serviceData, serviceDataLen);
+ if(urlIsSet) {
+ INFO("Swapping in URL Frame: Power: %d",defaultUrlPower);
+ serviceDataLen += constructURLFrame(serviceData+serviceDataLen,20);
+ DBG("\t Swapping in URL Frame: len=%d ",serviceDataLen);
+ updateAdvPacket(serviceData,serviceDataLen);
switchFlag = false;
frameIndex++;
break;
}
-
case 2:
// UID Frame
- if (uidIsSet) {
- INFO("Swapping in UID Frame: Power: %d", defaultUidPower);
- serviceDataLen += constructUIDFrame(serviceData + serviceDataLen, 20);
- DBG("\t Swapping in UID Frame: len=%d", serviceDataLen);
- updateAdvPacket(serviceData, serviceDataLen);
+ if(uidIsSet) {
+ INFO("Swapping in UID Frame: Power: %d",defaultUidPower);
+ serviceDataLen += constructUIDFrame(serviceData+serviceDataLen,20);
+ DBG("\t Swapping in UID Frame: len=%d",serviceDataLen);
+ updateAdvPacket(serviceData,serviceDataLen);
switchFlag = false;
frameIndex++;
break;
}
-
default:
// TLM frame
- INFO("Swapping in TLM Frame: version=%x, Batt=%d, Temp = %d, PDUCnt = %d, TimeSinceBoot=%d",
- TlmVersion,
- TlmBatteryVoltage,
- TlmBeaconTemp,
- TlmPduCount,
- TlmTimeSinceBoot);
- serviceDataLen += constructTLMFrame(serviceData + serviceDataLen, 20);
- DBG("\t Swapping in TLM Frame: len=%d", serviceDataLen);
- updateAdvPacket(serviceData, serviceDataLen);
+ INFO("Swapping in TLM Frame: version=%x, Batt=%d, Temp = %d, PDUCnt = %d, TimeSinceBoot=%d",TlmVersion, TlmBatteryVoltage, TlmBeaconTemp, TlmPduCount, TlmTimeSinceBoot);
+ serviceDataLen += constructTLMFrame(serviceData+serviceDataLen,20);
+ DBG("\t Swapping in TLM Frame: len=%d",serviceDataLen);
+ updateAdvPacket(serviceData,serviceDataLen);
frameIndex++;
break;
}
}
/*
- * Callback from onRadioNotification(), used to update the PDUCounter and process next state.
- */
+ * Callback from onRadioNotification(), used to update the PDUCounter and process next state.
+ */
+#define EDDYSTONE_SWAPFRAME_DELAYMS 1
void radioNotificationCallback(bool radioActive) {
- static const unsigned EDDYSTONE_SWAPFRAME_DELAYMS = 1;
-
+ //DBG("RadioNotificationCallback : %d, %d, %d, %d",radioActive,frameIndex,TlmPduCount,TlmTimeSinceBoot);
// Update PDUCount
TlmPduCount++;
- frameIndex = frameIndex % NUM_FRAMETYPES;
+ frameIndex = frameIndex % EDDYSTONE_MAX_FRAMETYPE;
+
- if (!radioActive) { // false just after a frame is sent
+ // True just before an frame is sent, fale just after a frame is sent
+ if(radioActive) {
+ // Do Nothing
+ } else {
// state machine to control which packet is being sent
- switch (frameIndex) {
+ switch(frameIndex) {
case 0: // TLM Frame
switchFrame.attach_us(this, &EddystoneService::swapOutFrames, EDDYSTONE_SWAPFRAME_DELAYMS);
switchFlag = true;
break;
-
case 1: // URL Frame
// switch out packets
- if (switchFlag) {
+ if(switchFlag) {
switchFrame.attach_us(this, &EddystoneService::swapOutFrames, EDDYSTONE_SWAPFRAME_DELAYMS);
switchFlag = false;
} else {
- if ((TlmPduCount % 10) == 0) { // every 10 adv packets switch the frame
+ if((TlmPduCount % 10) == 0) { // every 10 adv packets switch the frame
switchFlag = true;
}
}
break;
-
case 2: // UIDFrame
// switch out packets
- if (switchFlag) {
+ if(switchFlag ) {
switchFrame.attach_us(this, &EddystoneService::swapOutFrames, EDDYSTONE_SWAPFRAME_DELAYMS);
switchFlag = false;
} else {
- if ((TlmPduCount % 10) == 0) { // every 10 adv packets switch the frame
+ if((TlmPduCount % 10) == 0) { // every 10 adv packets switch the frame
switchFlag = true;
}
}
break;
}
}
+
+ return;
+ }
+
+ /*
+ * This function explicityly sets the parameters used by the Eddystone beacon.
+ * this function should be used in leu of the config service.
+ *
+ * @param bleIn ble object used to broadcast eddystone information
+ * @oaram beaconPeriodus is how often ble broadcasts are mde, in mili seconds
+ * @param txPowerLevel sets the broadcasting power level.
+ * @param uidNamespaceID 10Byte Namespace UUID
+ * @param uidInstanceID 6Byte Instance UUID
+ * @param url shortened URL to broadcast (pass in as a string)
+ * @param urlLen length of shortened url
+ * @param tlmVersion version of telemetry data field to use (default to 0x00)
+ *
+ */
+ EddystoneService(BLEDevice &bleIn,
+ uint16_t beaconPeriodus = 100,
+ uint8_t txPowerLevel = 0,
+ uint8_t * uidNamespaceID = NULL,
+ uint8_t * uidInstanceID = NULL,
+ const char * url = NULL,
+ uint8_t urlLen = 0,
+ uint8_t tlmVersion = 0) :
+ ble(bleIn)
+ {
+ uint8_t serviceData[SERVICE_DATA_MAX];
+ unsigned serviceDataLen = 0;
+ ERR("This function is not fully implemented yet, dont use it!!");
+ // Check optional frames, set their 'isSet' flags appropriately
+ if((uidNamespaceID != NULL) & (uidInstanceID != NULL)) {
+ uidIsSet = true;
+ setUIDFrameData(txPowerLevel,uidNamespaceID, uidInstanceID);
+ } else {
+ uidIsSet = false;
+ }
+ if(url != NULL) {
+ urlIsSet = true;
+ setURLFrameData(txPowerLevel,url);
+ } else {
+ uidIsSet = false;
+ }
+ // Default TLM frame to version 0x00, start all values at zero to be spec compliant.
+ setTLMFrameData(tlmVersion, 0x00,0x00);
+
+ // Initialize Frame transition
+ frameIndex = 0;
+ uidRFU = 0;
+ switchFlag = true;
+
+ /* Reinitialize the BLE stack. This will clear away the existing services and advertising state. */
+ ble.shutdown();
+ ble.init();
+ ble.setTxPower(txPowerLevel);
+ ble.setAdvertisingType(GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED);
+ ble.setAdvertisingInterval(beaconPeriodus);
+
+ // Make double sure the PDUCount and TimeSinceBoot fields are set to zero at reset
+ updateTlmPduCount(0);
+ updateTlmTimeSinceBoot(0);
+
+ // Construct TLM Frame in initial advertising.
+ serviceData[serviceDataLen++] = BEACON_EDDYSTONE[0];
+ serviceData[serviceDataLen++] = BEACON_EDDYSTONE[1];
+ serviceDataLen += constructTLMFrame(serviceData+serviceDataLen,SERVICE_DATA_MAX);
+
+ updateAdvPacket(serviceData, serviceDataLen);
+ ble.gap().startAdvertising();
+ ble.gap().onRadioNotification(this,&EddystoneService::radioNotificationCallback);
+ timeSinceBootTick.attach(this,&EddystoneService::tsbCallback,0.1); // incriment the TimeSinceBoot ticker every 0.1s
+
}
private:
- BLEDevice &ble;
- Ticker timeSinceBootTick;
- Timeout switchFrame;
- // Default value that is restored on reset
- size_t defaultUriDataLength;
- UriData_t defaultUriData;
- UIDNamespaceID_t defaultUidNamespaceID;
- UIDInstanceID_t defaultUidInstanceID;
- int8_t defaultUidPower;
- int8_t defaultUrlPower;
- unsigned frameIndex;
- uint16_t uidRFU;
- bool uidIsSet;
- bool urlIsSet;
- bool switchFlag;
+
- // Private Variables for Telemetry Data
- uint8_t TlmVersion;
- volatile uint16_t TlmBatteryVoltage;
- volatile uint16_t TlmBeaconTemp;
- volatile uint32_t TlmPduCount;
- volatile uint32_t TlmTimeSinceBoot;
+ BLEDevice &ble;
+ Ticker timeSinceBootTick;
+ Timeout switchFrame;
+// Default value that is restored on reset
+ size_t defaultUriDataLength;
+ UriData_t defaultUriData;
+ UIDNamespaceID_t defaultUidNamespaceID;
+ UIDInstanceID_t defaultUidInstanceID;
+ int8_t defaultUidPower;
+ int8_t defaultUrlPower;
+ uint16_t uidRFU;
+ bool uidIsSet;
+ bool urlIsSet;
+ bool switchFlag;
+
+// Private Variables for Telemetry Data
+ uint8_t TlmVersion;
+ volatile uint16_t TlmBatteryVoltage;
+ volatile uint16_t TlmBeaconTemp;
+ volatile uint32_t TlmPduCount;
+ volatile uint32_t TlmTimeSinceBoot;
public:
/*