adding support for USRP to nr-uesoftmodem

targets/RT/USER/nr-uesoftmodem.c

@@ -247,6 +247,9 @@ int emulate_rf = 0;
 
 threads_t threads= {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1};
 
+char* usrp_args=NULL;
+char* usrp_clksrc=NULL;
+
 /* forward declarations */
 void set_default_frame_parms(NR_DL_FRAME_PARMS *frame_parms[MAX_NUM_CCs]);
 
@@ -785,6 +788,25 @@ void init_openair0() {
 		 openair0_cfg[card].rx_freq[i]);
 	}
 	
+	if (usrp_args) openair0_cfg[card].sdr_addrs = usrp_args;
+	if (usrp_clksrc) {
+	  if (strcmp(usrp_clksrc, "internal") == 0) {
+	    openair0_cfg[card].clock_source = internal;
+	    LOG_D(PHY, "USRP clock source set as internal\n");
+	  } else if (strcmp(usrp_clksrc, "external") == 0) {
+	    openair0_cfg[card].clock_source = external;
+	    LOG_D(PHY, "USRP clock source set as external\n");
+	  } else if (strcmp(usrp_clksrc, "gpsdo") == 0) {
+	    openair0_cfg[card].clock_source = gpsdo;
+	    LOG_D(PHY, "USRP clock source set as gpsdo\n");
+	  } else {
+	    openair0_cfg[card].clock_source = internal;
+	    LOG_I(PHY, "USRP clock source unknown ('%s'). defaulting to internal\n", usrp_clksrc);	
+	  }
+	} else {
+	  openair0_cfg[card].clock_source = internal;
+	  LOG_I(PHY, "USRP clock source not specified. defaulting to internal\n");	
+	}
 	
     }
 }
@@ -837,7 +859,7 @@ int main( int argc, char **argv ) {
 #endif
 
     // initialize the log (see log.h for details)
-    set_glog(LOG_DEBUG);
+    set_glog(OAILOG_DEBUG);
 
     set_log(HW,      OAILOG_DEBUG);
     set_log(PHY,     OAILOG_DEBUG);

targets/RT/USER/nr-uesoftmodem.h

@@ -91,6 +91,9 @@
 
 #define CONFIG_HLP_DISABLNBIOT   "disable nb-iot, even if defined in config\n"
 
+#define CONFIG_HLP_USRP_ARGS                "set the arguments to identify USRP (same syntax as in UHD)\n"
+#define CONFIG_HLP_USRP_CLK_SRC              "USRP clock source: 'internal' or 'external'\n"
+
 /***************************************************************************************************************************************/
 /* command line options definitions, CMDLINE_XXXX_DESC macros are used to initialize paramdef_t arrays which are then used as argument
    when calling config_get or config_getlist functions                                                                                 */
@@ -135,6 +138,8 @@
 {"ue-max-power",     	       NULL,		      0,		iptr:&(tx_max_power[0]),	    defintval:90,   TYPE_INT,	   0},     \
 {"r"  ,                        CONFIG_HLP_PRB,        0,                u8ptr:&(frame_parms[0]->N_RB_DL),   defintval:25,   TYPE_UINT8,    0},     \
 {"dlsch-demod-shift",     	 CONFIG_HLP_DLSHIFT,	0,		  iptr:(int32_t *)&dlsch_demod_shift,	defintval:0,			   TYPE_INT,	  0},			   \
+{"usrp-args",               CONFIG_HLP_USRP_ARGS,   0,                      strptr:(char **)&usrp_args,         defstrval:"type=b200",          TYPE_STRING,    0},                     \
+{"usrp-clksrc",             CONFIG_HLP_USRP_CLK_SRC,0,                      strptr:(char **)&usrp_clksrc,       defstrval:"internal",           TYPE_STRING,    0}                     \
 }
 
 #define DEFAULT_DLF 2680000000