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Commit 741a0128 authored by frtabu's avatar frtabu
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add rfsimulator configuration module support

parent 3c85cd58
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Showing with 82 additions and 31 deletions
targets/ARCH/rfsimulator/simulator.c
View file @ 741a0128
......@@ -24,12 +24,14 @@
#include <common/utils/assertions.h>
#include <common/utils/LOG/log.h>
#include <common/utils/load_module_shlib.h>
#include <common/config/config_userapi.h>
#include "common_lib.h"
#include <openair1/PHY/defs_eNB.h>
#include "openair1/PHY/defs_UE.h"
#include <openair1/SIMULATION/TOOLS/sim.h>
#define PORT 4043 //TCP port for this simulator
#define PORT 4043 //default TCP port for this simulator
#define CirSize 3072000 // 100ms is enough
#define sampleToByte(a,b) ((a)*(b)*sizeof(sample_t))
#define byteToSample(a,b) ((a)/(sizeof(sample_t)*(b)))
......@@ -42,6 +44,22 @@
extern double snr_dB;
extern RAN_CONTEXT_t RC;
//
#define MAX_RFSIMU_OPT 2
#define RFSIMU_SECTION "rfsimulator"
#define RFSIMU_OPTIONS_PARAMNAME "options"
# define RFSIM_CONFIG_HELP_OPTIONS " list of comma separated options to enable rf simulator functionalities. Available options: \n"\
" chanmod: enable channel modelisation\n"\
" saviq: enable saving written iqs to a file\n"
/*-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
/* configuration parameters for the rfsimulator device */
/* optname helpstr paramflags XXXptr defXXXval type numelt */
/*-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
#define RFSIMULATOR_PARAMS_DESC {\
{"serveraddr", "<ip address to connect to>\n", 0, strptr:&(rfsimulator->ip), defstrval:"127.0.0.1", TYPE_STRING, 0 },\
{"serverport", "<port to connect to>\n", 0, u16ptr:&(rfsimulator->port), defuintval:PORT, TYPE_UINT16, 0 },\
{RFSIMU_OPTIONS_PARAMNAME, RFSIM_CONFIG_HELP_OPTIONS, 0, strlistptr:NULL, defstrlistval:NULL, TYPE_STRINGLIST,0}, \
{"IQfile", "<file path to use when saving IQs>\n", 0, strptr:&(saveF), defstrval:"/tmp/rfsimulator.iqs",TYPE_STRING, 0 }\
};
pthread_mutex_t Sockmutex;
......@@ -63,6 +81,7 @@ typedef struct {
uint64_t nextTimestamp;
uint64_t typeStamp;
char *ip;
uint16_t port;
int saveIQfile;
buffer_t buf[FD_SETSIZE];
int rx_num_channels;
......@@ -269,6 +288,44 @@ void fullwrite(int fd, void *_buf, ssize_t count, rfsimulator_state_t *t) {
}
}
void rfsimulator_readconfig(rfsimulator_state_t *rfsimulator) {
char *saveF=NULL;
paramdef_t rfsimu_params[] = RFSIMULATOR_PARAMS_DESC;
int p = config_paramidx_fromname(rfsimu_params,sizeof(rfsimu_params)/sizeof(paramdef_t), RFSIMU_OPTIONS_PARAMNAME) ;
int ret = config_get( rfsimu_params,sizeof(rfsimu_params)/sizeof(paramdef_t),RFSIMU_SECTION);
AssertFatal(ret >= 0, "configuration couldn't be performed");
rfsimulator->saveIQfile = -1;
for(int i=0; i<rfsimu_params[p].numelt ; i++) {
if (strcmp(rfsimu_params[p].strlistptr[i],"saviq") == 0) {
rfsimulator->saveIQfile=open(saveF,O_APPEND| O_CREAT|O_TRUNC | O_WRONLY, 0666);
if ( rfsimulator->saveIQfile != -1 )
LOG_I(HW,"rfsimulator: will save written IQ samples in %s\n", saveF);
else
LOG_E(HW, "can't open %s for IQ saving (%s)\n", saveF, strerror(errno));
break;
} else if (strcmp(rfsimu_params[p].strlistptr[i],"chanmod") == 0) {
load_module_shlib("chanmod",NULL,0,NULL);
} else {
fprintf(stderr,"Unknown rfsimulator option: %s\n",rfsimu_params[p].strlistptr[i]);
exit(-1);
}
}
/* for compatibility keep environment variable usage */
if ( getenv("RFSIMULATOR") != NULL ) {
rfsimulator->ip=getenv("RFSIMULATOR");
}
if ( strncasecmp(rfsimulator->ip,"enb",3) == 0 ||
strncasecmp(rfsimulator->ip,"server",3) == 0 )
rfsimulator->typeStamp = ENB_MAGICDL_FDD;
else
rfsimulator->typeStamp = UE_MAGICDL_FDD;
}
int server_start(openair0_device *device) {
rfsimulator_state_t *t = (rfsimulator_state_t *) device->priv;
t->typeStamp=ENB_MAGICDL_FDD;
......@@ -279,7 +336,7 @@ int server_start(openair0_device *device) {
sin_family:
AF_INET,
sin_port:
htons(PORT),
htons(t->port),
sin_addr:
{ s_addr: INADDR_ANY }
};
......@@ -301,7 +358,7 @@ int start_ue(openair0_device *device) {
sin_family:
AF_INET,
sin_port:
htons(PORT),
htons(t->port),
sin_addr:
{ s_addr: INADDR_ANY }
};
......@@ -309,7 +366,7 @@ sin_addr:
bool connected=false;
while(!connected) {
LOG_I(HW,"rfsimulator: trying to connect to %s:%d\n", t->ip, PORT);
LOG_I(HW,"rfsimulator: trying to connect to %s:%d\n", t->ip, t->port);
if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) == 0) {
LOG_I(HW,"rfsimulator: connection established\n");
......@@ -490,11 +547,14 @@ int rfsimulator_read(openair0_device *device, openair0_timestamp *ptimestamp, vo
if ( first_sock == FD_SETSIZE ) {
// no connected device (we are eNB, no UE is connected)
if ( t->nextTimestamp == 0)
LOG_W(HW,"No connected device, generating void samples...\n");
if (!flushInput(t, 10)) {
for (int x=0; x < nbAnt; x++)
memset(samplesVoid[x],0,sampleToByte(nsamps,1));
t->nextTimestamp+=nsamps;
if ( ((t->nextTimestamp/nsamps)%100) == 0)
LOG_W(HW,"Generated void samples for Rx: %ld\n", t->nextTimestamp);
*ptimestamp = t->nextTimestamp-nsamps;
pthread_mutex_unlock(&Sockmutex);
......@@ -540,13 +600,22 @@ int rfsimulator_read(openair0_device *device, openair0_timestamp *ptimestamp, vo
if (reGenerateChannel)
random_channel(ptr->channel_model,0);
for (int a=0; a<nbAnt; a++)
for (int a=0; a<nbAnt; a++) {
if ( ptr->channel_model != NULL ) // apply a channel model
rxAddInput( ptr->circularBuf, (struct complex16 *) samplesVoid[a],
a,
ptr->channel_model,
nsamps,
t->nextTimestamp
);
else { // no channel modeling
sample_t *out=(sample_t *)samplesVoid[a];
for ( int i=0; i < nsamps; i++ ) {
out[i].r+=ptr->circularBuf[((t->nextTimestamp+i)*nbAnt+a)%CirSize].r;
out[i].i+=ptr->circularBuf[((t->nextTimestamp+i)*nbAnt+a)%CirSize].i;
}
} // end of no channel modeling
} // end for a...
}
}
......@@ -589,31 +658,13 @@ int device_init(openair0_device *device, openair0_config_t *openair0_cfg) {
// --log_config.hw_log_level debug
rfsimulator_state_t *rfsimulator = (rfsimulator_state_t *)calloc(sizeof(rfsimulator_state_t),1);
if ((rfsimulator->ip=getenv("RFSIMULATOR")) == NULL ) {
LOG_E(HW,helpTxt);
exit(1);
}
rfsimulator_readconfig(rfsimulator);
pthread_mutex_init(&Sockmutex, NULL);
if ( strncasecmp(rfsimulator->ip,"enb",3) == 0 ||
strncasecmp(rfsimulator->ip,"server",3) == 0 )
rfsimulator->typeStamp = ENB_MAGICDL_FDD;
else
rfsimulator->typeStamp = UE_MAGICDL_FDD;
LOG_I(HW,"rfsimulator: running as %s\n", rfsimulator-> typeStamp == ENB_MAGICDL_FDD ? "(eg)NB" : "UE");
char *saveF;
if ((saveF=getenv("saveIQfile")) != NULL) {
rfsimulator->saveIQfile=open(saveF,O_APPEND| O_CREAT|O_TRUNC | O_WRONLY, 0666);
if ( rfsimulator->saveIQfile != -1 )
LOG_I(HW,"rfsimulator: will save written IQ samples in %s\n", saveF);
else
LOG_E(HW, "can't open %s for IQ saving (%s)\n", saveF, strerror(errno));
} else
rfsimulator->saveIQfile = -1;
device->trx_start_func = rfsimulator->typeStamp == ENB_MAGICDL_FDD ?
server_start :
......
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