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/EddystoneConfigService.h
- Revision:
- 1019:575852ad31a2
- Parent:
- 1017:ccb8c0646e55
- Child:
- 1022:306c409f6c09
diff -r 8a29b01b47db -r 575852ad31a2 ble/services/EddystoneConfigService.h
--- a/ble/services/EddystoneConfigService.h Thu Dec 10 09:15:01 2015 +0000
+++ b/ble/services/EddystoneConfigService.h Thu Dec 10 09:15:01 2015 +0000
@@ -42,7 +42,7 @@
/**
* @class EddystoneConfigService
-* @brief Eddystone Configuration Service. Can be used to set URL, adjust power levels, and set flags.
+* @brief Eddystone Configuration Service. Used to set URL, adjust power levels, and set flags.
* See https://github.com/google/eddystone
*
*/
@@ -61,54 +61,54 @@
};
static const unsigned ADVERTISING_INTERVAL_MSEC = 1000; // Advertising interval for config service.
- static const unsigned SERVICE_DATA_MAX = 31; // Maximum size of service data in ADV packets
+ static const unsigned SERVICE_DATA_MAX = 31; // Maximum size of service data in ADV packets.
- typedef uint8_t Lock_t[16]; /* 128 bits */
+ typedef uint8_t Lock_t[16]; /* 128 bits. */
typedef int8_t PowerLevels_t[NUM_POWER_MODES];
- // There are currently 3 subframes defined, URI, UID, and TLM
+ // There are currently three subframes defined: URI, UID, and TLM.
#define EDDYSTONE_MAX_FRAMETYPE 3
static const unsigned URI_DATA_MAX = 18;
typedef uint8_t UriData_t[URI_DATA_MAX];
- // UID Frame Type subfields
+ // UID Frame Type subfields.
static const size_t UID_NAMESPACEID_SIZE = 10;
typedef uint8_t UIDNamespaceID_t[UID_NAMESPACEID_SIZE];
static const size_t UID_INSTANCEID_SIZE = 6;
typedef uint8_t UIDInstanceID_t[UID_INSTANCEID_SIZE];
- // Eddystone Frame Type ID
+ // Eddystone Frame Type ID.
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 14B.
+ static const uint8_t FRAME_SIZE_UID = 20; // includes RFU bytes.
struct Params_t {
// Config Data
- bool isConfigured; // Flag for configuration being complete,
- // True = configured, false = not configured. Reset at instantiation, used for external callbacks.
+ bool isConfigured; // Flag for configuration being complete:
+ // True = configured, False = not configured. Reset at instantiation, used for external callbacks.
uint8_t lockedState;
Lock_t lock;
uint8_t flags;
- PowerLevels_t advPowerLevels; // Current value of AdvertisedPowerLevels
- uint8_t txPowerMode; // Firmware power levels used with setTxPower()
+ PowerLevels_t advPowerLevels; // Current value of AdvertisedPowerLevels.
+ uint8_t txPowerMode; // Firmware power levels used with setTxPower().
uint16_t beaconPeriod;
// TLM Frame Data
- uint8_t tlmVersion; // version of TLM packet
+ uint8_t tlmVersion; // Version of TLM packet.
bool tlmEnabled;
- float tlmBeaconPeriod; // how often to broadcat TLM frame, in seconds.
+ float tlmBeaconPeriod; // How often to broadcat TLM frame, in seconds.
// URI Frame Data
uint8_t uriDataLength;
UriData_t uriData;
bool uriEnabled;
- float uriBeaconPeriod; // how often to broadcast URIFrame, in seconds.
+ float uriBeaconPeriod; // How often to broadcast URIFrame, in seconds.
// UID Frame Data
- UIDNamespaceID_t uidNamespaceID; // UUID type, Namespace ID, 10B
- UIDInstanceID_t uidInstanceID; // UUID type, Instance ID, 6B
+ UIDNamespaceID_t uidNamespaceID; // UUID type, Namespace ID, 10B.
+ UIDInstanceID_t uidInstanceID; // UUID type, Instance ID, 6B.
bool uidEnabled;
- float uidBeaconPeriod; // how often to broadcast UID Frame, in seconds.
+ float uidBeaconPeriod; // How often to broadcast UID Frame, in seconds.
};
/**
@@ -118,19 +118,19 @@
* Reference to application-visible beacon state, loaded
* from persistent storage at startup.
* @param[in] defaultAdvPowerLevelsIn
- * Default power-levels array; applies only if the resetToDefaultsFlag is true.
+ * Default power-levels array; applies only if resetToDefaultsFlag is true.
*/
EddystoneConfigService(BLEDevice &bleIn,
Params_t ¶msIn,
PowerLevels_t &defaultAdvPowerLevelsIn,
PowerLevels_t &radioPowerLevelsIn) :
ble(bleIn),
- params(paramsIn), // Initialize URL Data
+ params(paramsIn), // Initialize URL data.
defaultAdvPowerLevels(defaultAdvPowerLevelsIn),
radioPowerLevels(radioPowerLevelsIn),
initSucceeded(false),
resetFlag(),
- defaultUidNamespaceID(), // Initialize UID Data
+ defaultUidNamespaceID(), // Initialize UID data.
defaultUidInstanceID(),
defaultUidPower(defaultAdvPowerLevelsIn[params.txPowerMode]),
uidIsSet(false),
@@ -149,7 +149,7 @@
txPowerModeChar(UUID_TX_POWER_MODE_CHAR, ¶ms.txPowerMode),
beaconPeriodChar(UUID_BEACON_PERIOD_CHAR, ¶ms.beaconPeriod),
resetChar(UUID_RESET_CHAR, &resetFlag) {
- // set eddystone as not configured yet. Used to exit config before timeout if GATT services are written to.
+ // Set Eddystone as not configured yet. Used to exit config before timeout if GATT services are written to.
params.isConfigured = false;
lockChar.setWriteAuthorizationCallback(this, &EddystoneConfigService::lockAuthorizationCallback);
@@ -195,12 +195,12 @@
updateCharacteristicValues();
}
- setupEddystoneConfigAdvertisements(); /* Setup advertising for the configService. */
+ setupEddystoneConfigAdvertisements(); /* Set up advertising for the config service. */
initSucceeded = true;
}
/*
- * Check if eddystone initialized successfully
+ * Check if Eddystone initialized successfully.
*/
bool initSuccessfully(void) const {
return initSucceeded;
@@ -209,8 +209,8 @@
/*
* @brief Function to update the default values for the TLM frame. Only applied if Reset Defaults is applied.
*
- * @param[in] tlmVersionIn Version of the TLM frame being used
- * @param[in] advPeriodInMin how long between TLM frames being advertised, this is measured in minutes.
+ * @param[in] tlmVersionIn Version of the TLM frame being used.
+ * @param[in] advPeriodInMin How long between TLM frames being advertised, measured in minutes.
*
*/
void setDefaultTLMFrameData(uint8_t tlmVersionIn = 0, float advPeriodInSec = 60){
@@ -221,35 +221,35 @@
TlmPduCount = 0;
TlmTimeSinceBoot = 0;
defaultTlmAdvPeriod = advPeriodInSec;
- tlmIsSet = true; // flag to add this to eddystone service when config is done
+ tlmIsSet = true; // Flag to add this to Eddystone service when config is done.
}
/*
* @brief Function to update the default values for the URI frame. Only applied if Reset Defaults is applied.
*
- * @param[in] uriIn url to advertise
- * @param[in] advPeriod how long to advertise the url for, measured in number of ADV frames.
+ * @param[in] uriIn URL to advertise.
+ * @param[in] advPeriod How long to advertise the URL, measured in number of ADV frames.
*
*/
void setDefaultURIFrameData(const char *uriIn, float advPeriod = 1){
DBG("Setting Default URI Data");
// Set URL Frame
- EddystoneService::encodeURL(uriIn, defaultUriData, defaultUriDataLength); // encode URL to URL Formatting
+ EddystoneService::encodeURL(uriIn, defaultUriData, defaultUriDataLength); // Encode URL to URL Formatting.
if (defaultUriDataLength > URI_DATA_MAX) {
return;
}
INFO("\t URI input = %s : %d", uriIn, defaultUriDataLength);
INFO("\t default URI = %s : %d ", defaultUriData, defaultUriDataLength );
defaultUriAdvPeriod = advPeriod;
- urlIsSet = true; // flag to add this to eddystone service when config is done
+ urlIsSet = true; // Flag to add this to Eddystone service when config is done.
}
/*
* @brief Function to update the default values for the UID frame. Only applied if Reset Defaults is applied.
*
- * @param[in] namespaceID 10Byte Namespace ID
- * @param[in] instanceID 6Byte Instance ID
- * @param[in] advPeriod how long to advertise the URL for, measured in the number of adv frames.
+ * @param[in] namespaceID 10Byte Namespace ID.
+ * @param[in] instanceID 6Byte Instance ID.
+ * @param[in] advPeriod How long to advertise the URL, measured in the number of ADV frames.
*
*/
void setDefaultUIDFrameData(UIDNamespaceID_t *namespaceID, UIDInstanceID_t *instanceID, float advPeriod = 10){
@@ -258,12 +258,12 @@
memcpy(defaultUidNamespaceID, namespaceID, UID_NAMESPACEID_SIZE);
memcpy(defaultUidInstanceID, instanceID, UID_INSTANCEID_SIZE);
defaultUidAdvPeriod = advPeriod;
- uidIsSet = true; // flag to add this to eddystone service when config is done
+ uidIsSet = true; // Flag to add this to Eddystone service when config is done.
}
- /* Start out by advertising the configService for a limited time after
- * startup; and switch to the normal non-connectible beacon functionality
- * afterwards. */
+ /* Start out by advertising the config service for a limited time after
+ * startup, then switch to the normal non-connectible beacon functionality.
+ */
void setupEddystoneConfigAdvertisements() {
const char DEVICE_NAME[] = "eddystone Config";
@@ -271,7 +271,7 @@
ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
- // UUID is in different order in the ADV frame (!)
+ // UUID is in a different order in the ADV frame (!)
uint8_t reversedServiceUUID[sizeof(UUID_URI_BEACON_SERVICE)];
for (unsigned int i = 0; i < sizeof(UUID_URI_BEACON_SERVICE); i++) {
reversedServiceUUID[i] = UUID_URI_BEACON_SERVICE[sizeof(UUID_URI_BEACON_SERVICE) - i - 1];
@@ -292,18 +292,18 @@
/*
* This function actually impliments the Eddystone Beacon service. It can be called with the help of the wrapper function
- * to load saved config params, or it can be called explicitly to reset the eddystone beacon to hardcoded values on each reset.
+ * to load saved config params, or it can be called explicitly to reset the Eddystone beacon to hardcoded values on each reset.
*
*/
void setupEddystoneAdvertisements() {
DBG("Switching Config -> adv");
- // Save params to storage
+ // Save params to storage.
extern void saveURIBeaconConfigParams(const Params_t *paramsP); /* forward declaration; necessary to avoid a circular dependency. */
saveURIBeaconConfigParams(¶ms);
INFO("Saved Params to Memory.")
- // Setup Eddystone Service
+ // Set up Eddystone Service.
static EddystoneService eddyServ(ble, params.beaconPeriod, radioPowerLevels[params.txPowerMode]);
- // Set configured frames (TLM,UID,URI...etc)
+ // Set configured frames (TLM, UID, URI and so on).
if (params.tlmEnabled) {
eddyServ.setTLMFrameData(params.tlmVersion, params.tlmBeaconPeriod);
}
@@ -316,7 +316,7 @@
(uint8_t *)params.uidInstanceID,
params.uidBeaconPeriod);
}
- // Start Advertising the eddystone service.
+ // Start advertising the Eddystone service.
eddyServ.start();
}
@@ -330,19 +330,19 @@
uint16_t handle = writeParams->handle;
if (handle == lockChar.getValueHandle()) {
- // Validated earlier
+ // Validated earlier.
memcpy(params.lock, writeParams->data, sizeof(Lock_t));
- // Set the state to be locked by the lock code (note: zeros are a valid lock)
+ // Set the state to be locked by the lock code (note: zeros are a valid lock).
params.lockedState = true;
INFO("Device Locked");
} else if (handle == unlockChar.getValueHandle()) {
- // Validated earlier
+ // Validated earlier.
params.lockedState = false;
INFO("Device Unlocked");
} else if (handle == uriDataChar.getValueHandle()) {
params.uriDataLength = writeParams->len;
- memset(params.uriData, 0x00, URI_DATA_MAX); // clear URI string
- memcpy(params.uriData, writeParams->data, writeParams->len); // set URI string
+ memset(params.uriData, 0x00, URI_DATA_MAX); // Clear URI string.
+ memcpy(params.uriData, writeParams->data, writeParams->len); // Set URI string.
params.uriEnabled = true;
INFO("URI = %s, URILen = %d", writeParams->data, writeParams->len);
} else if (handle == flagsChar.getValueHandle()) {
@@ -377,7 +377,7 @@
resetToDefaults();
}
updateCharacteristicValues();
- params.isConfigured = true; // some configuration data has been passed, on disconnect switch to advertising mode.
+ params.isConfigured = true; // Some configuration data has been passed; on disconnect switch to advertising mode.
}
/*
@@ -385,7 +385,7 @@
*/
void resetToDefaults(void) {
INFO("Resetting to defaults");
- // General
+ // General.
params.lockedState = false;
memset(params.lock, 0, sizeof(Lock_t));
params.flags = 0x10;
@@ -393,18 +393,18 @@
params.txPowerMode = TX_POWER_MODE_LOW;
params.beaconPeriod = (uint16_t) defaultUriAdvPeriod * 1000;
- // TLM Frame
+ // TLM Frame.
params.tlmVersion = defaultTlmVersion;
params.tlmBeaconPeriod = defaultTlmAdvPeriod;
params.tlmEnabled = tlmIsSet;
- // URL Frame
+ // URL Frame.
memcpy(params.uriData, defaultUriData, URI_DATA_MAX);
params.uriDataLength = defaultUriDataLength;
params.uriBeaconPeriod = defaultUriAdvPeriod;
params.uriEnabled = urlIsSet;
- // UID Frame
+ // UID Frame.
memcpy(params.uidNamespaceID, defaultUidNamespaceID, UID_NAMESPACEID_SIZE);
memcpy(params.uidInstanceID, defaultUidInstanceID, UID_INSTANCEID_SIZE);
params.uidBeaconPeriod = defaultUidAdvPeriod;
@@ -496,15 +496,15 @@
Params_t ¶ms;
Ticker timeSinceBootTick;
Timeout switchFrame;
- // Default value that is restored on reset
- PowerLevels_t &defaultAdvPowerLevels; // this goes into the advertising frames (radio power measured at 1m from device)
- PowerLevels_t &radioPowerLevels; // this configures the power levels of the radio
+ // Default value that is restored on reset.
+ PowerLevels_t &defaultAdvPowerLevels; // This goes into the advertising frames (radio power measured at 1m from device).
+ PowerLevels_t &radioPowerLevels; // This configures the power levels of the radio.
uint8_t lockedState;
bool initSucceeded;
uint8_t resetFlag;
bool switchFlag;
- //UID Default value that is restored on reset
+ //UID default value that is restored on reset.
UIDNamespaceID_t defaultUidNamespaceID;
UIDInstanceID_t defaultUidInstanceID;
float defaultUidAdvPeriod;
@@ -512,14 +512,14 @@
uint16_t uidRFU;
bool uidIsSet;
- //URI Default value that is restored on reset
+ //URI default value that is restored on reset.
uint8_t defaultUriDataLength;
UriData_t defaultUriData;
int8_t defaultUrlPower;
float defaultUriAdvPeriod;
bool urlIsSet;
- //TLM Default value that is restored on reset
+ //TLM default value that is restored on reset.
uint8_t defaultTlmVersion;
float defaultTlmAdvPeriod;
volatile uint16_t TlmBatteryVoltage;