void pktfwd_test(void)
{
struct lgw_pkt_rx_s rxpkt[8]; /* array containing inbound packets + metadata */
struct lgw_pkt_rx_s *p; /* pointer on a RX packet */
int i, nb_pkt;
nb_pkt = lgw_receive(8, rxpkt);
if(nb_pkt == LGW_HAL_ERROR){
exit(EXIT_FAILURE);
}
if(nb_pkt > 0){
for (i=0; i < nb_pkt; ++i) {
p = &rxpkt[i];
lw_log_rxpkt(p);
}
}
}
int main(int argc, char **argv)
{
int i, j; /* loop and temporary variables */
struct timespec sleep_time = {0, 3000000}; /* 3 ms */
/* clock and log rotation management */
int log_rotate_interval = 3600; /* by default, rotation every hour */
int time_check = 0; /* variable used to limit the number of calls to time() function */
unsigned long pkt_in_log = 0; /* count the number of packet written in each log file */
/* configuration file related */
const char global_conf_fname[] = "global_conf.json"; /* contain global (typ. network-wide) configuration */
const char local_conf_fname[] = "local_conf.json"; /* contain node specific configuration, overwrite global parameters for parameters that are defined in both */
const char debug_conf_fname[] = "debug_conf.json"; /* if present, all other configuration files are ignored */
/* allocate memory for packet fetching and processing */
struct lgw_pkt_rx_s rxpkt[16]; /* array containing up to 16 inbound packets metadata */
struct lgw_pkt_rx_s *p; /* pointer on a RX packet */
int nb_pkt;
/* local timestamp variables until we get accurate GPS time */
struct timespec fetch_time;
char fetch_timestamp[30];
struct tm * x;
/* parse command line options */
while ((i = getopt (argc, argv, "hr:")) != -1) {
switch (i) {
case 'h':
usage();
return EXIT_FAILURE;
break;
case 'r':
log_rotate_interval = atoi(optarg);
if ((log_rotate_interval == 0) || (log_rotate_interval < -1)) {
MSG( "ERROR: Invalid argument for -r option\n");
return EXIT_FAILURE;
}
break;
default:
MSG("ERROR: argument parsing use -h option for help\n");
usage();
return EXIT_FAILURE;
}
}
/* 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);
/* configuration files management */
if (access(debug_conf_fname, R_OK) == 0) {
/* if there is a debug conf, parse only the debug conf */
MSG("INFO: found debug configuration file %s, other configuration files will be ignored\n", debug_conf_fname);
parse_SX1301_configuration(debug_conf_fname);
parse_gateway_configuration(debug_conf_fname);
} else if (access(global_conf_fname, R_OK) == 0) {
/* if there is a global conf, parse it and then try to parse local conf */
MSG("INFO: found global configuration file %s, trying to parse it\n", global_conf_fname);
parse_SX1301_configuration(global_conf_fname);
parse_gateway_configuration(global_conf_fname);
if (access(local_conf_fname, R_OK) == 0) {
MSG("INFO: found local configuration file %s, trying to parse it\n", local_conf_fname);
parse_SX1301_configuration(local_conf_fname);
parse_gateway_configuration(local_conf_fname);
}
} else if (access(local_conf_fname, R_OK) == 0) {
/* if there is only a local conf, parse it and that's all */
MSG("INFO: found local configuration file %s, trying to parse it\n", local_conf_fname);
parse_SX1301_configuration(local_conf_fname);
parse_gateway_configuration(local_conf_fname);
} else {
MSG("ERROR: failed to find any configuration file named %s, %s or %s\n", global_conf_fname, local_conf_fname, debug_conf_fname);
return EXIT_FAILURE;
}
/* starting the concentrator */
i = lgw_start();
if (i == LGW_HAL_SUCCESS) {
MSG("INFO: concentrator started, packet can now be received\n");
} else {
MSG("ERROR: failed to start the concentrator\n");
return EXIT_FAILURE;
}
/* transform the MAC address into a string */
sprintf(lgwm_str, "%08X%08X", (uint32_t)(lgwm >> 32), (uint32_t)(lgwm & 0xFFFFFFFF));
/* opening log file and writing CSV header*/
time(&now_time);
open_log();
/* main loop */
while ((quit_sig != 1) && (exit_sig != 1)) {
/* fetch packets */
nb_pkt = lgw_receive(ARRAY_SIZE(rxpkt), rxpkt);
if (nb_pkt == LGW_HAL_ERROR) {
MSG("ERROR: failed packet fetch, exiting\n");
return EXIT_FAILURE;
} else if (nb_pkt == 0) {
clock_nanosleep(CLOCK_MONOTONIC, 0, &sleep_time, NULL); /* wait a short time if no packets */
} else {
/* local timestamp generation until we get accurate GPS time */
clock_gettime(CLOCK_REALTIME, &fetch_time);
x = gmtime(&(fetch_time.tv_sec));
sprintf(fetch_timestamp,"%04i-%02i-%02i %02i:%02i:%02i.%03liZ",(x->tm_year)+1900,(x->tm_mon)+1,x->tm_mday,x->tm_hour,x->tm_min,x->tm_sec,(fetch_time.tv_nsec)/1000000); /* ISO 8601 format */
}
/* log packets */
for (i=0; i < nb_pkt; ++i) {
p = &rxpkt[i];
/* writing gateway ID */
fprintf(log_file, "\"%08X%08X\",", (uint32_t)(lgwm >> 32), (uint32_t)(lgwm & 0xFFFFFFFF));
/* writing node MAC address */
fputs("\"\",", log_file); // TODO: need to parse payload
/* writing UTC timestamp*/
fprintf(log_file, "\"%s\",", fetch_timestamp);
// TODO: replace with GPS time when available
/* writing internal clock */
fprintf(log_file, "%10u,", p->count_us);
/* writing RX frequency */
fprintf(log_file, "%10u,", p->freq_hz);
/* writing RF chain */
fprintf(log_file, "%u,", p->rf_chain);
/* writing RX modem/IF chain */
fprintf(log_file, "%2d,", p->if_chain);
/* writing status */
switch(p->status) {
case STAT_CRC_OK: fputs("\"CRC_OK\" ,", log_file); break;
case STAT_CRC_BAD: fputs("\"CRC_BAD\",", log_file); break;
case STAT_NO_CRC: fputs("\"NO_CRC\" ,", log_file); break;
case STAT_UNDEFINED:fputs("\"UNDEF\" ,", log_file); break;
default: fputs("\"ERR\" ,", log_file);
}
/* writing payload size */
fprintf(log_file, "%3u,", p->size);
/* writing modulation */
switch(p->modulation) {
case MOD_LORA: fputs("\"LORA\",", log_file); break;
case MOD_FSK: fputs("\"FSK\" ,", log_file); break;
default: fputs("\"ERR\" ,", log_file);
}
/* writing bandwidth */
switch(p->bandwidth) {
case BW_500KHZ: fputs("500000,", log_file); break;
case BW_250KHZ: fputs("250000,", log_file); break;
case BW_125KHZ: fputs("125000,", log_file); break;
case BW_62K5HZ: fputs("62500 ,", log_file); break;
case BW_31K2HZ: fputs("31200 ,", log_file); break;
case BW_15K6HZ: fputs("15600 ,", log_file); break;
case BW_7K8HZ: fputs("7800 ,", log_file); break;
case BW_UNDEFINED: fputs("0 ,", log_file); break;
default: fputs("-1 ,", log_file);
}
/* writing datarate */
if (p->modulation == MOD_LORA) {
switch (p->datarate) {
case DR_LORA_SF7: fputs("\"SF7\" ,", log_file); break;
case DR_LORA_SF8: fputs("\"SF8\" ,", log_file); break;
case DR_LORA_SF9: fputs("\"SF9\" ,", log_file); break;
case DR_LORA_SF10: fputs("\"SF10\" ,", log_file); break;
case DR_LORA_SF11: fputs("\"SF11\" ,", log_file); break;
case DR_LORA_SF12: fputs("\"SF12\" ,", log_file); break;
default: fputs("\"ERR\" ,", log_file);
}
} else if (p->modulation == MOD_FSK) {
fprintf(log_file, "\"%6u\",", p->datarate);
} else {
fputs("\"ERR\" ,", log_file);
}
/* writing coderate */
switch (p->coderate) {
case CR_LORA_4_5: fputs("\"4/5\",", log_file); break;
case CR_LORA_4_6: fputs("\"2/3\",", log_file); break;
case CR_LORA_4_7: fputs("\"4/7\",", log_file); break;
case CR_LORA_4_8: fputs("\"1/2\",", log_file); break;
case CR_UNDEFINED: fputs("\"\" ,", log_file); break;
default: fputs("\"ERR\",", log_file);
}
/* writing packet RSSI */
fprintf(log_file, "%+.0f,", p->rssi);
/* writing packet average SNR */
fprintf(log_file, "%+5.1f,", p->snr);
/* writing hex-encoded payload (bundled in 32-bit words) */
fputs("\"", log_file);
for (j = 0; j < p->size; ++j) {
if ((j > 0) && (j%4 == 0)) fputs("-", log_file);
fprintf(log_file, "%02X", p->payload[j]);
}
/* end of log file line */
fputs("\"\n", log_file);
fflush(log_file);
++pkt_in_log;
}
/* check time and rotate log file if necessary */
++time_check;
if (time_check >= 8) {
time_check = 0;
time(&now_time);
if (difftime(now_time, log_start_time) > log_rotate_interval) {
fclose(log_file);
MSG("INFO: log file %s closed, %lu packet(s) recorded\n", log_file_name, pkt_in_log);
pkt_in_log = 0;
open_log();
}
}
}
if (exit_sig == 1) {
/* clean up before leaving */
i = lgw_stop();
if (i == LGW_HAL_SUCCESS) {
MSG("INFO: concentrator stopped successfully\n");
} else {
MSG("WARNING: failed to stop concentrator successfully\n");
}
fclose(log_file);
MSG("INFO: log file %s closed, %lu packet(s) recorded\n", log_file_name, pkt_in_log);
}
MSG("INFO: Exiting packet logger program\n");
return EXIT_SUCCESS;
}
int main()
{
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 */
struct lgw_pkt_rx_s *p; /* pointer on a RX packet */
int i, j;
int nb_pkt;
uint32_t tx_cnt = 0;
unsigned long loop_cnt = 0;
uint8_t status_var = 0;
/* 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 concentrator-specific code */
printf("Beginning of test for loragw_hal.c\n");
printf("*** Library version information ***\n%s\n\n", lgw_version_info());
/* set configuration for RF chains */
memset(&rfconf, 0, sizeof(rfconf));
rfconf.enable = true;
rfconf.freq_hz = F_RX_0;
lgw_rxrf_setconf(0, rfconf); /* radio A, f0 */
rfconf.enable = true;
rfconf.freq_hz = F_RX_1;
lgw_rxrf_setconf(1, rfconf); /* radio B, f1 */
/* 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 = -300000;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(0, ifconf); /* chain 0: LoRa 125kHz, all SF, on f0 - 0.3 MHz */
ifconf.enable = true;
ifconf.rf_chain = 0;
ifconf.freq_hz = 300000;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(1, ifconf); /* chain 1: LoRa 125kHz, all SF, on f0 + 0.3 MHz */
ifconf.enable = true;
ifconf.rf_chain = 1;
ifconf.freq_hz = -300000;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(2, ifconf); /* chain 2: LoRa 125kHz, all SF, on f1 - 0.3 MHz */
ifconf.enable = true;
ifconf.rf_chain = 1;
ifconf.freq_hz = 300000;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(3, ifconf); /* chain 3: LoRa 125kHz, all SF, on f1 + 0.3 MHz */
#if (LGW_MULTI_NB >= 8)
ifconf.enable = true;
ifconf.rf_chain = 0;
ifconf.freq_hz = -100000;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(4, ifconf); /* chain 4: LoRa 125kHz, all SF, on f0 - 0.1 MHz */
ifconf.enable = true;
ifconf.rf_chain = 0;
ifconf.freq_hz = 100000;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(5, ifconf); /* chain 5: LoRa 125kHz, all SF, on f0 + 0.1 MHz */
ifconf.enable = true;
ifconf.rf_chain = 1;
ifconf.freq_hz = -100000;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(6, ifconf); /* chain 6: LoRa 125kHz, all SF, on f1 - 0.1 MHz */
ifconf.enable = true;
ifconf.rf_chain = 1;
ifconf.freq_hz = 100000;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(7, ifconf); /* chain 7: LoRa 125kHz, all SF, on f1 + 0.1 MHz */
#endif
/* set configuration for LoRa 'stand alone' channel */
memset(&ifconf, 0, sizeof(ifconf));
ifconf.enable = true;
ifconf.rf_chain = 0;
ifconf.freq_hz = 0;
ifconf.bandwidth = BW_250KHZ;
ifconf.datarate = DR_LORA_SF10;
lgw_rxif_setconf(8, ifconf); /* chain 8: LoRa 250kHz, SF10, on f0 MHz */
/* set configuration for FSK channel */
memset(&ifconf, 0, sizeof(ifconf));
ifconf.enable = true;
ifconf.rf_chain = 1;
ifconf.freq_hz = 0;
ifconf.bandwidth = BW_250KHZ;
ifconf.datarate = 64000;
lgw_rxif_setconf(9, ifconf); /* chain 9: FSK 64kbps, on f1 MHz */
/* set configuration for TX packet */
memset(&txpkt, 0, sizeof(txpkt));
txpkt.freq_hz = F_TX;
txpkt.tx_mode = IMMEDIATE;
txpkt.rf_power = 10;
txpkt.modulation = MOD_LORA;
txpkt.bandwidth = BW_250KHZ;
txpkt.datarate = DR_LORA_SF10;
txpkt.coderate = CR_LORA_4_5;
strcpy((char *)txpkt.payload, "TX.TEST.LORA.GW.????" );
txpkt.size = 20;
txpkt.preamble = 6;
txpkt.rf_chain = 0;
/*
memset(&txpkt, 0, sizeof(txpkt));
txpkt.freq_hz = F_TX;
txpkt.tx_mode = IMMEDIATE;
txpkt.rf_power = 10;
txpkt.modulation = MOD_FSK;
txpkt.f_dev = 50;
txpkt.datarate = 64000;
strcpy((char *)txpkt.payload, "TX.TEST.LORA.GW.????" );
txpkt.size = 20;
txpkt.preamble = 4;
txpkt.rf_chain = 0;
*/
/* connect, configure and start the LoRa concentrator */
i = lgw_start();
if (i == LGW_HAL_SUCCESS) {
printf("*** Concentrator started ***\n");
} else {
printf("*** Impossible to start concentrator ***\n");
return -1;
}
/* once configured, dump content of registers to a file, for reference */
// FILE * reg_dump = NULL;
// reg_dump = fopen("reg_dump.log", "w");
// if (reg_dump != NULL) {
// lgw_reg_check(reg_dump);
// fclose(reg_dump);
// }
while ((quit_sig != 1) && (exit_sig != 1)) {
loop_cnt++;
/* fetch N packets */
nb_pkt = lgw_receive(ARRAY_SIZE(rxpkt), rxpkt);
if (nb_pkt == 0) {
wait_ms(300);
} else {
/* display received packets */
for(i=0; i < nb_pkt; ++i) {
p = &rxpkt[i];
printf("---\nRcv pkt #%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;
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");
}
}
}
/* send a packet every X loop */
if (loop_cnt%16 == 0) {
/* 32b counter in the payload, big endian */
txpkt.payload[16] = 0xff & (tx_cnt >> 24);
txpkt.payload[17] = 0xff & (tx_cnt >> 16);
txpkt.payload[18] = 0xff & (tx_cnt >> 8);
txpkt.payload[19] = 0xff & tx_cnt;
i = lgw_send(txpkt); /* non-blocking scheduling of TX packet */
j = 0;
printf("+++\nSending packet #%d, rf path %d, return %d\nstatus -> ", tx_cnt, txpkt.rf_chain, i);
do {
++j;
wait_ms(100);
lgw_status(TX_STATUS, &status_var); /* get TX status */
printf("%d:", status_var);
} while ((status_var != TX_FREE) && (j < 100));
++tx_cnt;
printf("\nTX finished\n");
}
}
int main(int argc, char **argv)
{
struct sigaction sigact; /* SIGQUIT&SIGINT&SIGTERM signal handling */
struct lgw_conf_board_s boardconf;
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 */
struct lgw_pkt_rx_s *p; /* pointer on a RX packet */
int i, j;
int nb_pkt;
uint32_t fa = 0, fb = 0, ft = 0;
enum lgw_radio_type_e radio_type = LGW_RADIO_TYPE_NONE;
uint8_t clocksource = 0; /* Radio A is source in MTAC-LORA */
uint32_t tx_cnt = 0;
unsigned long loop_cnt = 0;
uint8_t status_var = 0;
double xd = 0.0;
int xi = 0;
/* parse command line options */
while ((i = getopt (argc, argv, "ha:b:t:r:k:")) != -1) {
switch (i) {
case 'h':
usage();
return -1;
break;
case 'a': /* <float> Radio A RX frequency in MHz */
sscanf(optarg, "%lf", &xd);
fa = (uint32_t)((xd*1e6) + 0.5); /* .5 Hz offset to get rounding instead of truncating */
break;
case 'b': /* <float> Radio B RX frequency in MHz */
sscanf(optarg, "%lf", &xd);
fb = (uint32_t)((xd*1e6) + 0.5); /* .5 Hz offset to get rounding instead of truncating */
break;
case 't': /* <float> Radio TX frequency in MHz */
sscanf(optarg, "%lf", &xd);
ft = (uint32_t)((xd*1e6) + 0.5); /* .5 Hz offset to get rounding instead of truncating */
break;
case 'r': /* <int> Radio type (1255, 1257) */
sscanf(optarg, "%i", &xi);
switch (xi) {
case 1255:
radio_type = LGW_RADIO_TYPE_SX1255;
break;
case 1257:
radio_type = LGW_RADIO_TYPE_SX1257;
break;
default:
printf("ERROR: invalid radio type\n");
usage();
return -1;
}
break;
case 'k': /* <int> Concentrator clock source (Radio A or Radio B) */
sscanf(optarg, "%i", &xi);
clocksource = (uint8_t)xi;
break;
default:
printf("ERROR: argument parsing\n");
usage();
return -1;
}
}
/* check input parameters */
if ((fa == 0) || (fb == 0) || (ft == 0)) {
printf("ERROR: missing frequency input parameter:\n");
printf(" Radio A RX: %u\n", fa);
printf(" Radio B RX: %u\n", fb);
printf(" Radio TX: %u\n", ft);
usage();
return -1;
}
if (radio_type == LGW_RADIO_TYPE_NONE) {
printf("ERROR: missing radio type parameter:\n");
usage();
return -1;
}
/* 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 concentrator-specific code */
printf("Beginning of test for loragw_hal.c\n");
printf("*** Library version information ***\n%s\n\n", lgw_version_info());
/* set configuration for board */
memset(&boardconf, 0, sizeof(boardconf));
boardconf.lorawan_public = true;
boardconf.clksrc = clocksource;
lgw_board_setconf(boardconf);
/* set configuration for RF chains */
memset(&rfconf, 0, sizeof(rfconf));
rfconf.enable = true;
rfconf.freq_hz = fa;
rfconf.rssi_offset = DEFAULT_RSSI_OFFSET;
rfconf.type = radio_type;
rfconf.tx_enable = true;
lgw_rxrf_setconf(0, rfconf); /* radio A, f0 */
rfconf.enable = true;
rfconf.freq_hz = fb;
rfconf.rssi_offset = DEFAULT_RSSI_OFFSET;
rfconf.type = radio_type;
rfconf.tx_enable = false;
lgw_rxrf_setconf(1, rfconf); /* radio B, f1 */
/* 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 = -300000;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(0, ifconf); /* chain 0: LoRa 125kHz, all SF, on f0 - 0.3 MHz */
ifconf.enable = true;
ifconf.rf_chain = 0;
ifconf.freq_hz = 300000;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(1, ifconf); /* chain 1: LoRa 125kHz, all SF, on f0 + 0.3 MHz */
ifconf.enable = true;
ifconf.rf_chain = 1;
ifconf.freq_hz = -300000;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(2, ifconf); /* chain 2: LoRa 125kHz, all SF, on f1 - 0.3 MHz */
ifconf.enable = true;
ifconf.rf_chain = 1;
ifconf.freq_hz = 300000;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(3, ifconf); /* chain 3: LoRa 125kHz, all SF, on f1 + 0.3 MHz */
ifconf.enable = true;
ifconf.rf_chain = 0;
ifconf.freq_hz = -100000;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(4, ifconf); /* chain 4: LoRa 125kHz, all SF, on f0 - 0.1 MHz */
ifconf.enable = true;
ifconf.rf_chain = 0;
ifconf.freq_hz = 100000;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(5, ifconf); /* chain 5: LoRa 125kHz, all SF, on f0 + 0.1 MHz */
ifconf.enable = true;
ifconf.rf_chain = 1;
ifconf.freq_hz = -100000;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(6, ifconf); /* chain 6: LoRa 125kHz, all SF, on f1 - 0.1 MHz */
ifconf.enable = true;
ifconf.rf_chain = 1;
ifconf.freq_hz = 100000;
ifconf.datarate = DR_LORA_MULTI;
lgw_rxif_setconf(7, ifconf); /* chain 7: LoRa 125kHz, all SF, on f1 + 0.1 MHz */
/* set configuration for LoRa 'stand alone' channel */
memset(&ifconf, 0, sizeof(ifconf));
ifconf.enable = true;
ifconf.rf_chain = 0;
ifconf.freq_hz = 0;
ifconf.bandwidth = BW_250KHZ;
ifconf.datarate = DR_LORA_SF10;
lgw_rxif_setconf(8, ifconf); /* chain 8: LoRa 250kHz, SF10, on f0 MHz */
/* set configuration for FSK channel */
memset(&ifconf, 0, sizeof(ifconf));
ifconf.enable = true;
ifconf.rf_chain = 1;
ifconf.freq_hz = 0;
ifconf.bandwidth = BW_250KHZ;
ifconf.datarate = 64000;
lgw_rxif_setconf(9, ifconf); /* chain 9: FSK 64kbps, on f1 MHz */
/* set configuration for TX packet */
memset(&txpkt, 0, sizeof(txpkt));
txpkt.freq_hz = ft;
txpkt.tx_mode = IMMEDIATE;
txpkt.rf_power = 10;
txpkt.modulation = MOD_LORA;
txpkt.bandwidth = BW_250KHZ;
txpkt.datarate = DR_LORA_SF10;
txpkt.coderate = CR_LORA_4_5;
strcpy((char *)txpkt.payload, "TX.TEST.LORA.GW.????" );
txpkt.size = 20;
txpkt.preamble = 6;
txpkt.rf_chain = 0;
/*
memset(&txpkt, 0, sizeof(txpkt));
txpkt.freq_hz = F_TX;
txpkt.tx_mode = IMMEDIATE;
txpkt.rf_power = 10;
txpkt.modulation = MOD_FSK;
txpkt.f_dev = 50;
txpkt.datarate = 64000;
strcpy((char *)txpkt.payload, "TX.TEST.LORA.GW.????" );
txpkt.size = 20;
txpkt.preamble = 4;
txpkt.rf_chain = 0;
*/
/* connect, configure and start the LoRa concentrator */
i = lgw_start();
if (i == LGW_HAL_SUCCESS) {
printf("*** Concentrator started ***\n");
} else {
printf("*** Impossible to start concentrator ***\n");
return -1;
}
/* once configured, dump content of registers to a file, for reference */
// FILE * reg_dump = NULL;
// reg_dump = fopen("reg_dump.log", "w");
// if (reg_dump != NULL) {
// lgw_reg_check(reg_dump);
// fclose(reg_dump);
// }
while ((quit_sig != 1) && (exit_sig != 1)) {
loop_cnt++;
/* fetch N packets */
nb_pkt = lgw_receive(ARRAY_SIZE(rxpkt), rxpkt);
if (nb_pkt == 0) {
wait_ms(300);
} else {
/* display received packets */
for(i=0; i < nb_pkt; ++i) {
p = &rxpkt[i];
printf("---\nRcv pkt #%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;
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");
}
}
}
/* send a packet every X loop */
if (loop_cnt%16 == 0) {
/* 32b counter in the payload, big endian */
txpkt.payload[16] = 0xff & (tx_cnt >> 24);
txpkt.payload[17] = 0xff & (tx_cnt >> 16);
txpkt.payload[18] = 0xff & (tx_cnt >> 8);
txpkt.payload[19] = 0xff & tx_cnt;
i = lgw_send(txpkt); /* non-blocking scheduling of TX packet */
j = 0;
printf("+++\nSending packet #%d, rf path %d, return %d\nstatus -> ", tx_cnt, txpkt.rf_chain, i);
do {
++j;
wait_ms(100);
lgw_status(TX_STATUS, &status_var); /* get TX status */
printf("%d:", status_var);
} while ((status_var != TX_FREE) && (j < 100));
++tx_cnt;
printf("\nTX finished\n");
}
}
int main(int argc, char **argv)
{
int i; /* loop and temporary variables */
struct timespec sleep_time = {0, 3000000}; /* 3 ms */
int packet_counter = 0;
/* allocate memory for packet fetching and processing */
struct lgw_pkt_rx_s rxpkt[16]; /* array containing up to 16 inbound packets metadata */
struct lgw_pkt_rx_s *p; /* pointer on a RX packet */
int nb_pkt;
configure_gateway();
/* parse command line options */
while ((i = getopt (argc, argv, "hr:")) != -1) {
switch (i) {
case 'h':
usage();
return EXIT_FAILURE;
break;
case 'r':
result_file_name = optarg;
break;
default:
MSG("ERROR: argument parsing use -h option for help\n");
usage();
return EXIT_FAILURE;
}
}
/* 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);
/* starting the concentrator */
i = lgw_start();
if (i == LGW_HAL_SUCCESS) {
MSG("INFO: concentrator started, packet can now be received\n");
} else {
MSG("ERROR: failed to start the concentrator\n");
return EXIT_FAILURE;
}
openResultFile();
/* transform the MAC address into a string */
sprintf(lgwm_str, "%08X%08X", (uint32_t)(lgwm >> 32), (uint32_t)(lgwm & 0xFFFFFFFF));
/* main loop */
while ((quit_sig != 1) && (exit_sig != 1)) {
/* fetch packets */
nb_pkt = lgw_receive(ARRAY_SIZE(rxpkt), rxpkt);
if (nb_pkt == LGW_HAL_ERROR) {
MSG("ERROR: failed packet fetch, exiting\n");
return EXIT_FAILURE;
} else if (nb_pkt == 0) {
clock_nanosleep(CLOCK_MONOTONIC, 0, &sleep_time, NULL); /* wait a short time if no packets */
} else {
/* local timestamp generation until we get accurate GPS time */
}
/* log packets */
for (i=0; i < nb_pkt; ++i) {
p = &rxpkt[i];
switch(compare_id(p)) {
case JOIN_REQ_MSG:
MSG("Sending join response.\n");
send_join_response(p);
packet_counter = 0;
size = 0;
break;
case TEST_MSG:
snr[packet_counter] = p->snr;
packet_counter++;
size = p->size;
break;
case END_TEST_MSG:
if (packet_counter != 0) {
write_results(packet_counter, p);
MSG("Ended series: %i packets received.\n", packet_counter);
}
packet_counter = 0;
size = 0;
break;
case ALL_TESTS_ENDED_MSG:
exit_sig = 1; // ending program
MSG("All tests have been finished.\n");
break;
default:
// message not recognized
break;
}
}
}
if (exit_sig == 1) {
/* clean up before leaving */
i = lgw_stop();
if (i == LGW_HAL_SUCCESS) {
MSG("INFO: concentrator stopped successfully\n");
} else {
MSG("WARNING: failed to stop concentrator successfully\n");
}
}
fclose(result_file);
MSG("INFO: Exiting uplink concentrator program\n");
return EXIT_SUCCESS;
}
