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/*
/ _____) _ | |
( (____ _____ ____ _| |_ _____ ____| |__
\____ \| ___ | (_ _) ___ |/ ___) _ \
_____) ) ____| | | || |_| ____( (___| | | |
(______/|_____)_|_|_| \__)_____)\____)_| |_|
©2013 Semtech-Cycleo
Description:
Minimum test program for the loragw_hal 'library'
*/
/* -------------------------------------------------------------------------- */
/* --- DEPENDANCIES --------------------------------------------------------- */
/* fix an issue between POSIX and C99 */
#if __STDC_VERSION__ >= 199901L
#define _XOPEN_SOURCE 600
#else
#define _XOPEN_SOURCE 500
#endif
#include <stdint.h> /* C99 types */
#include <stdlib.h> /* malloc & free */
#include <stdbool.h> /* bool type */
#include <stdio.h> /* printf */
#include <string.h> /* memset */
#include <signal.h> /* sigaction */
#include "loragw_hal.h"
#include "loragw_aux.h"
/* -------------------------------------------------------------------------- */
/* --- PRIVATE MACROS ------------------------------------------------------- */
#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
/* -------------------------------------------------------------------------- */
/* --- PRIVATE VARIABLES ---------------------------------------------------- */
static int exit_sig = 0; /* 1 -> application terminates cleanly (shut down hardware, close open files, etc) */
static int quit_sig = 0; /* 1 -> application terminates without shutting down the hardware */
/* -------------------------------------------------------------------------- */
/* --- PRIVATE FUNCTIONS DECLARATION ---------------------------------------- */
static void sig_handler(int sigio);
/* -------------------------------------------------------------------------- */
/* --- PRIVATE FUNCTIONS DEFINITION ----------------------------------------- */
static void sig_handler(int sigio) {
if (sigio == SIGQUIT) {
quit_sig = 1;;
} else if ((sigio == SIGINT) || (sigio == SIGTERM)) {
exit_sig = 1;
}
}
/* -------------------------------------------------------------------------- */
/* --- MAIN FUNCTION -------------------------------------------------------- */
int main(int argc, char **argv)
{
struct sigaction sigact; /* SIGQUIT&SIGINT&SIGTERM signal handling */
struct lgw_conf_rxrf_s rfconf;
struct lgw_conf_rxif_s ifconf;
struct lgw_pkt_rx_s rxpkt[4]; /* array containing up to 4 inbound packets metadata */
struct lgw_pkt_tx_s txpkt; /* configuration and metadata for an outbound packet */
uint8_t txbuf[256]; /* buffer for the TX payload */
struct lgw_pkt_rx_s *p; /* pointer on a RX packet */
int i, j;
int nb_pkt;
uint8_t x;
int tx_cnt = 0;
int tx_path = 0;
struct lgw_pkt_tx_s txs;
/* configure signal handling */
sigemptyset(&sigact.sa_mask);
sigact.sa_flags = 0;
sigact.sa_handler = sig_handler;
sigaction(SIGQUIT, &sigact, NULL);
sigaction(SIGINT, &sigact, NULL);
sigaction(SIGTERM, &sigact, NULL);
/* beginning of Lora gateway-specific code */
printf("Beginning of test for loragw_hal.c\n");
/* set configuration for RF chains */
memset(&rfconf, 0, sizeof(rfconf));
rfconf.enable = true;
rfconf.freq_hz = 866187500;
lgw_rxrf_setconf(0, rfconf); /* radio A */
rfconf.enable = true;
rfconf.freq_hz = 866437500;
lgw_rxrf_setconf(1, rfconf); /* radio B */
/* set configuration for Lora multi-SF channels (bandwidth cannot be set) */
memset(&ifconf, 0, sizeof(ifconf));
ifconf.enable = true;
ifconf.rf_chain = 0;
ifconf.freq_hz = -187500;
ifconf.bandwidth = BW_125KHZ;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(0, ifconf); /* chain 0: 1st radio, bleeper channel 1, all SF */
ifconf.enable = true;
ifconf.rf_chain = 0;
ifconf.freq_hz = -62500;
ifconf.bandwidth = BW_125KHZ;
ifconf.datarate = DR_LORA_SF8 | DR_LORA_SF10;
lgw_rxif_setconf(1, ifconf); /* chain 1: 1st radio, bleeper channel 2, SF8 & SF10 only */
ifconf.enable = false;
ifconf.rf_chain = 0;
ifconf.freq_hz = 0;
ifconf.bandwidth = 0;
ifconf.datarate = 0;
lgw_rxif_setconf(2, ifconf); /* chain 2: 1st radio, disabled */
ifconf.enable = true;
ifconf.rf_chain = 1;
ifconf.freq_hz = -187500;
ifconf.bandwidth = BW_125KHZ;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(3, ifconf); /* chain 3: 2nd radio, bleeper channel 3, all SF */
/* set configuration for Lora 'stand alone' channel */
ifconf.enable = true;
ifconf.rf_chain = 0;
ifconf.freq_hz = 187500;
ifconf.bandwidth = BW_125KHZ;
ifconf.datarate = DR_LORA_SF10;
lgw_rxif_setconf(8, ifconf); /* chain 8: bleeper channel 4, SF10 only */
/* set configuration for TX packet */
memset(&txs, 0, sizeof(txs));
txs.freq_hz = 866250000;
txs.tx_mode = IMMEDIATE;
txs.modulation = MOD_LORA;
txs.bandwidth = BW_250KHZ;
txs.datarate = DR_LORA_SF10;
txs.coderate = CR_LORA_4_5;
txs.payload = "TX.TEST.LORA.GATEWAY";
txs.size = 20;
txs.invert_pol = false;
/* connect, configure and start the Lora gateway */
lgw_start();
while ((quit_sig != 1) && (exit_sig != 1)) {
/* fetch N packets */
nb_pkt = lgw_receive(ARRAY_SIZE(rxpkt), rxpkt);
if (nb_pkt == 0) {
wait_ms(300);
} else {
printf("\nLora gateway, %d packets received:\n\n", nb_pkt);
/* display received packets */
for(i=0; i < nb_pkt; ++i) {
p = &rxpkt[i];
printf("---\nPkt #%d >>", i+1);
if (p->status == STAT_CRC_OK) {
printf(" if_chain:%2d", p->if_chain);
printf(" tstamp:%010u", p->count_us);
printf(" size:%3u", p->size);
switch (p-> modulation) {
case MOD_LORA: printf(" Lora"); break;
case MOD_FSK: printf(" FSK"); break;
case MOD_GFSK: printf(" GFSK"); break;
default: printf(" modulation?");
}
switch (p->datarate) {
case DR_LORA_SF7: printf(" SF7"); break;
case DR_LORA_SF8: printf(" SF8"); break;
case DR_LORA_SF9: printf(" SF9"); break;
case DR_LORA_SF10: printf(" SF10"); break;
case DR_LORA_SF11: printf(" SF11"); break;
case DR_LORA_SF12: printf(" SF12"); break;
default: printf(" datarate?");
}
switch (p->coderate) {
case CR_LORA_4_5: printf(" CR1(4/5)"); break;
case CR_LORA_4_6: printf(" CR2(2/3)"); break;
case CR_LORA_4_7: printf(" CR3(4/7)"); break;
case CR_LORA_4_8: printf(" CR4(1/2)"); break;
default: printf(" coderate?");
}
printf("\n");
printf(" RSSI:%+6.1f SNR:%+5.1f (min:%+5.1f, max:%+5.1f) payload:\n", p->rssi, p->snr, p->snr_min, p->snr_max);
for (j = 0; j < p->size; ++j) {
printf(" %02X", p->payload[j]);
}
printf(" #\n");
} else if (p->status == STAT_CRC_BAD) {
printf(" if_chain:%2d", p->if_chain);
printf(" tstamp:%010u", p->count_us);
printf(" size:%3u\n", p->size);
printf(" CRC error, damaged packet\n\n");
} else if (p->status == STAT_NO_CRC){
printf(" if_chain:%2d", p->if_chain);
printf(" tstamp:%010u", p->count_us);
printf(" size:%3u\n", p->size);
printf(" no CRC\n\n");
} else {
printf(" if_chain:%2d", p->if_chain);
printf(" tstamp:%010u", p->count_us);
printf(" size:%3u\n", p->size);
printf(" invalid status ?!?\n\n");
}
}
/* free the memory used for RX payload(s) */
for(i=0; i < nb_pkt; ++i) {
free(rxpkt[i].payload);
}
}
/* send a packet every X loop */
if (tx_cnt >= 5) {
tx_cnt = 0;
txs.rf_chain = tx_path; /* alternate between path A and B */
i = lgw_send(txs);
printf("Packet sent, rf path %d, status %d\n", txs.rf_chain, i);
tx_path = (tx_path+1) % 2;
} else {
++tx_cnt;
}
}
if (exit_sig == 1) {
/* clean up before leaving */
lgw_stop();
}
printf("End of test for loragw_hal.c\n");
return 0;
}
/* --- EOF ------------------------------------------------------------------ */
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