Peer to peer xDot

Dependencies:   ISL29011 libxDot-dev-mbed5-deprecated

Revision:
0:33f2abdc6bf9
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/dot_util.cpp	Mon Mar 05 23:51:58 2018 +0000
@@ -0,0 +1,140 @@
+#include "dot_util.h"
+#if defined(TARGET_XDOT_L151CC)
+#include "xdot_low_power.h"
+#endif
+
+void display_config() {
+    // display configuration and library version information
+    logInfo("=====================");
+    logInfo("general configuration");
+    logInfo("=====================");
+    logInfo("version ------------------ %s", dot->getId().c_str());
+    logInfo("device ID/EUI ------------ %s", mts::Text::bin2hexString(dot->getDeviceId()).c_str());
+    logInfo("default channel plan ----- %s", mDot::FrequencyBandStr(dot->getDefaultFrequencyBand()).c_str());
+    logInfo("current channel plan ----- %s", mDot::FrequencyBandStr(dot->getFrequencyBand()).c_str());
+    if (lora::ChannelPlan::IsPlanFixed(dot->getFrequencyBand())) {
+        logInfo("frequency sub band ------- %u", dot->getFrequencySubBand());
+    }
+    logInfo("public network ----------- %s", dot->getPublicNetwork() ? "on" : "off");
+    logInfo("=========================");
+    logInfo("credentials configuration");
+    logInfo("=========================");
+    logInfo("device class ------------- %s", dot->getClass().c_str());
+    logInfo("network join mode -------- %s", mDot::JoinModeStr(dot->getJoinMode()).c_str());
+    if (dot->getJoinMode() == mDot::MANUAL || dot->getJoinMode() == mDot::PEER_TO_PEER) {
+	logInfo("network address ---------- %s", mts::Text::bin2hexString(dot->getNetworkAddress()).c_str());
+	logInfo("network session key------- %s", mts::Text::bin2hexString(dot->getNetworkSessionKey()).c_str());
+	logInfo("data session key---------- %s", mts::Text::bin2hexString(dot->getDataSessionKey()).c_str());
+    } else {
+	logInfo("network name ------------- %s", dot->getNetworkName().c_str());
+	logInfo("network phrase ----------- %s", dot->getNetworkPassphrase().c_str());
+	logInfo("network EUI -------------- %s", mts::Text::bin2hexString(dot->getNetworkId()).c_str());
+	logInfo("network KEY -------------- %s", mts::Text::bin2hexString(dot->getNetworkKey()).c_str());
+    }
+    logInfo("========================");
+    logInfo("communication parameters");
+    logInfo("========================");
+    if (dot->getJoinMode() == mDot::PEER_TO_PEER) {
+	logInfo("TX frequency ------------- %lu", dot->getTxFrequency());
+    } else {
+	logInfo("acks --------------------- %s, %u attempts", dot->getAck() > 0 ? "on" : "off", dot->getAck());
+    }
+    logInfo("TX datarate -------------- %s", mDot::DataRateStr(dot->getTxDataRate()).c_str());
+    logInfo("TX power ----------------- %lu dBm", dot->getTxPower());
+    logInfo("antenna gain ------------- %u dBm", dot->getAntennaGain());
+    logInfo("LBT ---------------------- %s", dot->getLbtTimeUs() ? "on" : "off");
+    if (dot->getLbtTimeUs()) {
+	logInfo("LBT time ----------------- %lu us", dot->getLbtTimeUs());
+	logInfo("LBT threshold ------------ %d dBm", dot->getLbtThreshold());
+    }
+}
+
+void update_peer_to_peer_config(uint8_t *network_address, uint8_t *network_session_key, uint8_t *data_session_key, uint32_t tx_frequency, uint8_t tx_datarate, uint8_t tx_power) {
+    std::vector<uint8_t> current_network_address = dot->getNetworkAddress();
+    std::vector<uint8_t> current_network_session_key = dot->getNetworkSessionKey();
+    std::vector<uint8_t> current_data_session_key = dot->getDataSessionKey();
+    uint32_t current_tx_frequency = dot->getTxFrequency();
+    uint8_t current_tx_datarate = dot->getTxDataRate();
+    uint8_t current_tx_power = dot->getTxPower();
+
+    std::vector<uint8_t> network_address_vector(network_address, network_address + 4);
+    std::vector<uint8_t> network_session_key_vector(network_session_key, network_session_key + 16);
+    std::vector<uint8_t> data_session_key_vector(data_session_key, data_session_key + 16);
+
+    if (current_network_address != network_address_vector) {
+        logInfo("changing network address from \"%s\" to \"%s\"", mts::Text::bin2hexString(current_network_address).c_str(), mts::Text::bin2hexString(network_address_vector).c_str());
+        if (dot->setNetworkAddress(network_address_vector) != mDot::MDOT_OK) {
+            logError("failed to set network address to \"%s\"", mts::Text::bin2hexString(network_address_vector).c_str());
+        }
+    }
+    
+    if (current_network_session_key != network_session_key_vector) {
+        logInfo("changing network session key from \"%s\" to \"%s\"", mts::Text::bin2hexString(current_network_session_key).c_str(), mts::Text::bin2hexString(network_session_key_vector).c_str());
+        if (dot->setNetworkSessionKey(network_session_key_vector) != mDot::MDOT_OK) {
+            logError("failed to set network session key to \"%s\"", mts::Text::bin2hexString(network_session_key_vector).c_str());
+        }
+    }
+    
+    if (current_data_session_key != data_session_key_vector) {
+        logInfo("changing data session key from \"%s\" to \"%s\"", mts::Text::bin2hexString(current_data_session_key).c_str(), mts::Text::bin2hexString(data_session_key_vector).c_str());
+        if (dot->setDataSessionKey(data_session_key_vector) != mDot::MDOT_OK) {
+            logError("failed to set data session key to \"%s\"", mts::Text::bin2hexString(data_session_key_vector).c_str());
+        }
+    }
+    
+    if (current_tx_frequency != tx_frequency) {
+	logInfo("changing TX frequency from %lu to %lu", current_tx_frequency, tx_frequency);
+	if (dot->setTxFrequency(tx_frequency) != mDot::MDOT_OK) {
+	    logError("failed to set TX frequency to %lu", tx_frequency);
+	}
+    }
+
+    if (current_tx_datarate != tx_datarate) {
+	logInfo("changing TX datarate from %u to %u", current_tx_datarate, tx_datarate);
+	if (dot->setTxDataRate(tx_datarate) != mDot::MDOT_OK) {
+	    logError("failed to set TX datarate to %u", tx_datarate);
+	}
+    }
+
+    if (current_tx_power != tx_power) {
+	logInfo("changing TX power from %u to %u", current_tx_power, tx_power);
+	if (dot->setTxPower(tx_power) != mDot::MDOT_OK) {
+	    logError("failed to set TX power to %u", tx_power);
+	}
+    }
+}
+
+void join_network() {
+    int32_t j_attempts = 0;
+    int32_t ret = mDot::MDOT_ERROR;
+    
+    // attempt to join the network
+    while (ret != mDot::MDOT_OK) {
+        logInfo("attempt %d to join network", ++j_attempts);
+        ret = dot->joinNetwork();
+        if (ret != mDot::MDOT_OK) {
+            logError("failed to join network %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
+            // in some frequency bands we need to wait until another channel is available before transmitting again
+            uint32_t delay_s = (dot->getNextTxMs() / 1000) + 1;
+            if (delay_s < 2) {
+                logInfo("waiting %lu s until next free channel", delay_s);
+                wait(delay_s);
+            } else {
+                logInfo("sleeping %lu s until next free channel", delay_s);
+                dot->sleep(delay_s, mDot::RTC_ALARM, false);
+            }
+        }
+    }
+}
+
+void send_data(std::vector<uint8_t> data) {
+    int32_t ret;
+
+    ret = dot->send(data);
+    if (ret != mDot::MDOT_OK) {
+        logError("failed to send data to %s [%d][%s]", dot->getJoinMode() == mDot::PEER_TO_PEER ? "peer" : "gateway", ret, mDot::getReturnCodeString(ret).c_str());
+    } else {
+        logInfo("successfully sent data to %s", dot->getJoinMode() == mDot::PEER_TO_PEER ? "peer" : "gateway");
+    }
+}
+