DigitalInfinity/ESP32-PaxCounter
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Lora network setup + event handler elaborated

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This commit is contained in:
Verkehrsrot 2019-10-09 20:07:16 +02:00
parent d57c48a97f
commit 88e73e2eb8
3 changed files with 157 additions and 134 deletions
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3
include/lorawan.h
View File

@ -31,8 +31,8 @@ typedef struct {
} mac_t;
esp_err_t lora_stack_init();
void lora_setupForNetwork(bool preJoin);
void lmictask(void *pvParameters);
void onEvent(ev_t ev);
void gen_lora_deveui(uint8_t *pdeveui);
void RevBytes(unsigned char *b, size_t c);
void get_hard_deveui(uint8_t *pdeveui);
@ -43,6 +43,7 @@ void showLoraKeys(void);
void lora_send(void *pvParameters);
void lora_enqueuedata(MessageBuffer_t *message);
void lora_queuereset(void);
void myEventCallback(void *pUserData, ev_t ev);
void myRxCallback(void *pUserData, uint8_t port, const uint8_t *pMsg,
size_t nMsg);
void myTxCallback(void *pUserData, int fSuccess);

2
src/configmanager.cpp
View File

@ -15,7 +15,7 @@ esp_err_t err;
// populate cfg vars with factory settings
void defaultConfig() {
cfg.loradr = LORADRDEFAULT; // 0-15, lora datarate, see pacounter.conf
cfg.loradr = LORADRDEFAULT; // 0-15, lora datarate, see paxcounter.conf
cfg.txpower = LORATXPOWDEFAULT; // 0-15, lora tx power
cfg.adrmode = 1; // 0=disabled, 1=enabled
cfg.screensaver = 0; // 0=disabled, 1=enabled

284
src/lorawan.cpp
View File

@ -75,6 +75,39 @@ const lmic_pinmap lmic_pins = {
.spi_freq = 0,
.pConfig = &myHalConfig};
void lora_setupForNetwork(bool preJoin) {
if (preJoin) {
#if CFG_LMIC_US_like
// in the US, with TTN, it saves join time if we start on subband 1
// (channels 8-15). This will get overridden after the join by
// parameters from the network. If working with other networks or in
// other regions, this will need to be changed.
LMIC_selectSubBand(1);
#elif CFG_LMIC_EU_like
// setting for TheThingsNetwork
// TTN uses SF9, not SF12, for RX2 window
LMIC.dn2Dr = EU868_DR_SF9;
// Disable link check validation
LMIC_setLinkCheckMode(0);
#endif
} else {
// set data rate adaptation according to saved setting
LMIC_setAdrMode(cfg.adrmode);
// set data rate and transmit power to stored device values if no ADR
if (!cfg.adrmode)
LMIC_setDrTxpow(assertDR(cfg.loradr), cfg.txpower);
// show current devaddr
ESP_LOGI(TAG, "DEVaddr=%08X", LMIC.devaddr);
ESP_LOGI(TAG, "Radio parameters %s / %s / %s",
getSfName(updr2rps(LMIC.datarate)),
getBwName(updr2rps(LMIC.datarate)),
getCrName(updr2rps(LMIC.datarate)));
}
}
// DevEUI generator using devices's MAC address
void gen_lora_deveui(uint8_t *pdeveui) {
uint8_t *p = pdeveui, dmac[6];
@ -204,117 +237,6 @@ void showLoraKeys(void) {
#endif // VERBOSE
void onEvent(ev_t ev) {
char buff[24] = "";
switch (ev) {
case EV_SCAN_TIMEOUT:
strcpy_P(buff, PSTR("SCAN TIMEOUT"));
break;
case EV_BEACON_FOUND:
strcpy_P(buff, PSTR("BEACON FOUND"));
break;
case EV_BEACON_MISSED:
strcpy_P(buff, PSTR("BEACON MISSED"));
break;
case EV_BEACON_TRACKED:
strcpy_P(buff, PSTR("BEACON TRACKED"));
break;
case EV_JOINING:
strcpy_P(buff, PSTR("JOINING"));
break;
case EV_JOINED:
strcpy_P(buff, PSTR("JOINED"));
// set data rate adaptation according to saved setting
LMIC_setAdrMode(cfg.adrmode);
// set data rate and transmit power to defaults only if we have no ADR
if (!cfg.adrmode)
LMIC_setDrTxpow(assertDR(cfg.loradr), cfg.txpower);
// show current devaddr
ESP_LOGI(TAG, "DEVaddr=%08X", LMIC.devaddr);
ESP_LOGI(TAG, "Radio parameters %s / %s / %s",
getSfName(updr2rps(LMIC.datarate)),
getBwName(updr2rps(LMIC.datarate)),
getCrName(updr2rps(LMIC.datarate)));
break;
case EV_RFU1:
strcpy_P(buff, PSTR("RFU1"));
break;
case EV_JOIN_FAILED:
strcpy_P(buff, PSTR("JOIN FAILED"));
break;
case EV_REJOIN_FAILED:
strcpy_P(buff, PSTR("REJOIN FAILED"));
break;
case EV_TXCOMPLETE:
strcpy_P(buff, PSTR("TX COMPLETE"));
break;
case EV_LOST_TSYNC:
strcpy_P(buff, PSTR("LOST TSYNC"));
break;
case EV_RESET:
strcpy_P(buff, PSTR("RESET"));
break;
case EV_RXCOMPLETE:
// data received in ping slot
strcpy_P(buff, PSTR("RX COMPLETE"));
break;
case EV_LINK_DEAD:
strcpy_P(buff, PSTR("LINK DEAD"));
break;
case EV_LINK_ALIVE:
strcpy_P(buff, PSTR("LINK_ALIVE"));
break;
case EV_SCAN_FOUND:
strcpy_P(buff, PSTR("SCAN FOUND"));
break;
case EV_TXSTART:
if (!(LMIC.opmode & OP_JOINING)) {
strcpy_P(buff, PSTR("TX START"));
}
break;
case EV_TXCANCELED:
strcpy_P(buff, PSTR("TX CANCELLED"));
break;
case EV_RXSTART:
strcpy_P(buff, PSTR("RX START"));
break;
case EV_JOIN_TXCOMPLETE:
strcpy_P(buff, PSTR("JOIN WAIT"));
break;
default:
sprintf_P(buff, PSTR("LMIC EV %d"), ev);
break;
}
// Log & Display if asked
if (*buff) {
ESP_LOGI(TAG, "%s", buff);
sprintf(lmic_event_msg, buff);
}
}
// LMIC send task
void lora_send(void *pvParameters) {
configASSERT(((uint32_t)pvParameters) == 1); // FreeRTOS check
@ -351,7 +273,8 @@ void lora_send(void *pvParameters) {
lora_enqueuedata(&SendBuffer); // re-enqueue the undelivered message
break;
case LMIC_ERROR_TX_TOO_LARGE: // message size exceeds LMIC buffer size
case LMIC_ERROR_TX_NOT_FEASIBLE: // message too large for current datarate
case LMIC_ERROR_TX_NOT_FEASIBLE: // message too large for current
// datarate
ESP_LOGI(TAG,
"Message too large to send, message not sent and deleted");
// we need some kind of error handling here -> to be done
@ -385,9 +308,9 @@ esp_err_t lora_stack_init() {
&lmicTask, // task handle
1); // CPU core
if (!LMIC_startJoining()) { // start joining
// start joining
if (!LMIC_startJoining())
ESP_LOGI(TAG, "Already joined");
}
// start lmic send task
xTaskCreatePinnedToCore(lora_send, // task function
@ -480,34 +403,32 @@ finish:
// LMIC lorawan stack task
void lmictask(void *pvParameters) {
configASSERT(((uint32_t)pvParameters) == 1); // FreeRTOS check
configASSERT(((uint32_t)pvParameters) == 1);
// setup LMIC stack
os_init(); // initialize lmic run-time environment
LMIC_reset(); // initialize lmic MAC
// os_init_ex(pPinMap);
// pre-join settings
LMIC_setDrTxpow(assertDR(LORADRDEFAULT), LORATXPOWDEFAULT);
LMIC_setLinkCheckMode(0);
// register a callback for downlink messages. We aren't trying to write
// reentrant code, so pUserData is NULL. LMIC_reset() doesn't affect
// callbacks, so we can do this first.
LMIC_registerRxMessageCb(myRxCallback, NULL);
LMIC_registerEventCb(myEventCallback, NULL);
// Reset the MAC state. Session and pending data transfers will be
// discarded.
LMIC_reset();
// This tells LMIC to make the receive windows bigger, in case your clock is
// faster or slower. This causes the transceiver to be earlier switched on,
// so consuming more power. You may sharpen (reduce) CLOCK_ERROR_PERCENTAGE
// in src/lmic_config.h if you are limited on battery.
#ifdef CLOCK_ERROR_PROCENTAGE
LMIC_setClockError(MAX_CLOCK_ERROR * CLOCK_ERROR_PROCENTAGE / 100);
LMIC_setClockError(CLOCK_ERROR_PROCENTAGE * MAX_CLOCK_ERROR / 100);
#endif
#if CFG_LMIC_US_like
// in the US, with TTN, it saves join time if we start on subband 1
// (channels 8-15). This will get overridden after the join by parameters
// from the network. If working with other networks or in other regions,
// this will need to be changed.
LMIC_selectSubBand(1);
#endif
// register a callback for downlink messages. We aren't trying to write
// reentrant code, so pUserData is NULL.
LMIC_registerRxMessageCb(myRxCallback, NULL);
// do the network-specific setup prior to join.
lora_setupForNetwork(true);
while (1) {
os_runloop_once(); // execute lmic scheduled jobs and events
@ -515,6 +436,107 @@ void lmictask(void *pvParameters) {
}
} // lmictask
// lmic event handler
void myEventCallback(void *pUserData, ev_t ev) {
char buff[24] = "";
switch (ev) {
case EV_SCAN_TIMEOUT:
strcpy_P(buff, PSTR("SCAN TIMEOUT"));
break;
case EV_BEACON_FOUND:
strcpy_P(buff, PSTR("BEACON FOUND"));
break;
case EV_BEACON_MISSED:
strcpy_P(buff, PSTR("BEACON MISSED"));
break;
case EV_BEACON_TRACKED:
strcpy_P(buff, PSTR("BEACON TRACKED"));
break;
case EV_JOINING:
strcpy_P(buff, PSTR("JOINING"));
break;
case EV_JOINED:
strcpy_P(buff, PSTR("JOINED"));
lora_setupForNetwork(false);
break;
case EV_RFU1:
strcpy_P(buff, PSTR("RFU1"));
break;
case EV_JOIN_FAILED:
strcpy_P(buff, PSTR("JOIN FAILED"));
break;
case EV_REJOIN_FAILED:
strcpy_P(buff, PSTR("REJOIN FAILED"));
break;
case EV_TXCOMPLETE:
strcpy_P(buff, PSTR("TX COMPLETE"));
break;
case EV_LOST_TSYNC:
strcpy_P(buff, PSTR("LOST TSYNC"));
break;
case EV_RESET:
strcpy_P(buff, PSTR("RESET"));
break;
case EV_RXCOMPLETE:
strcpy_P(buff, PSTR("RX COMPLETE"));
break;
case EV_LINK_DEAD:
strcpy_P(buff, PSTR("LINK DEAD"));
break;
case EV_LINK_ALIVE:
strcpy_P(buff, PSTR("LINK_ALIVE"));
break;
case EV_SCAN_FOUND:
strcpy_P(buff, PSTR("SCAN FOUND"));
break;
case EV_TXSTART:
if (!(LMIC.opmode & OP_JOINING)) {
strcpy_P(buff, PSTR("TX START"));
}
break;
case EV_TXCANCELED:
strcpy_P(buff, PSTR("TX CANCELLED"));
break;
case EV_RXSTART:
strcpy_P(buff, PSTR("RX START"));
break;
case EV_JOIN_TXCOMPLETE:
strcpy_P(buff, PSTR("JOIN WAIT"));
break;
default:
sprintf_P(buff, PSTR("LMIC EV %d"), ev);
break;
}
// Log & Display if asked
if (*buff) {
ESP_LOGI(TAG, "%s", buff);
sprintf(lmic_event_msg, buff);
}
}
// receive message handler
void myRxCallback(void *pUserData, uint8_t port, const uint8_t *pMsg,
size_t nMsg) {