# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1500006855 0
# Node ID 3ec82dc1dbda63cce2ddac76efa80f5efe6d9fde
# Parent  3f92d88fbb1c7ba057f2d1e3daefa1315fcb2cb0
fc-cmu200d: implemented reading and parsing of cable config files (-c arg)

diff -r 3f92d88fbb1c -r 3ec82dc1dbda cmu200/Makefile
--- a/cmu200/Makefile	Sun May 28 07:22:09 2017 +0000
+++ b/cmu200/Makefile	Fri Jul 14 04:34:15 2017 +0000
@@ -3,8 +3,8 @@
 PROGS=	fc-cmu200d fc-serscpi
 INSTBIN=/opt/freecalypso/bin
 
-CMU200D_OBJS=	band.o dispatch.o init.o main.o mode.o openport.o rfanalyzer.o \
-		sercmd.o session.o signalgen.o socket.o
+CMU200D_OBJS=	band.o cableconf.o dispatch.o init.o main.o mode.o openport.o \
+		rfanalyzer.o sercmd.o session.o signalgen.o socket.o
 
 SERSCPI_OBJS=	openport.o sertool.o
 
diff -r 3f92d88fbb1c -r 3ec82dc1dbda cmu200/band.h
--- a/cmu200/band.h	Sun May 28 07:22:09 2017 +0000
+++ b/cmu200/band.h	Fri Jul 14 04:34:15 2017 +0000
@@ -15,4 +15,6 @@
 	int			secaddr;
 	struct arfcn_range	*arfcn_range;
 	struct arfcn_range	*arfcn_range_ext;
+	unsigned		ul_cable_loss;
+	unsigned		dl_cable_loss;
 };
diff -r 3f92d88fbb1c -r 3ec82dc1dbda cmu200/cableconf.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cmu200/cableconf.c	Fri Jul 14 04:34:15 2017 +0000
@@ -0,0 +1,139 @@
+/*
+ * The code that reads and parses cable config files lives here.
+ */
+
+#include <sys/param.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include "band.h"
+
+char cableconf_directory[] = "/opt/freecalypso/rfcal/cableconf/";
+
+extern struct band supported_bands[];
+extern int cmu200_rf_port;
+
+static void
+cable_loss_line(cp, filename_for_errs, lineno)
+	char *cp, *filename_for_errs;
+{
+	char *np;
+	struct band *band;
+	int dir;
+	unsigned num;
+
+	while (isspace(*cp))
+		cp++;
+	if (!isdigit(*cp)) {
+inv:		fprintf(stderr, "%s line %d: invalid syntax for cable-loss\n",
+			filename_for_errs, lineno);
+		exit(1);
+	}
+	for (np = cp; isdigit(*cp); cp++)
+		;
+	if (cp[0] != 'd' && cp[0] != 'u' || cp[1] != 'l')
+		goto inv;
+	dir = *cp;
+	*cp = '\0';
+	cp += 2;
+	for (band = supported_bands; band->name; band++)
+		if (!strcmp(band->name, np))
+			break;
+	if (!band->name) {
+		fprintf(stderr, "%s line %d: frequency band \"%s\" not known\n",
+			filename_for_errs, lineno, np);
+		exit(1);
+	}
+	while (isspace(*cp))
+		cp++;
+	if (!isdigit(*cp))
+		goto inv;
+	for (np = cp; isdigit(*cp); cp++)
+		;
+	if (cp[0] != '.' || !isdigit(cp[1]))
+		goto inv;
+	num = atoi(np) * 10 + (cp[1] - '0');
+	cp += 2;
+	while (isspace(*cp))
+		cp++;
+	if (*cp != '\0' && *cp != '#')
+		goto inv;
+	switch (dir) {
+	case 'd':
+		band->dl_cable_loss = num;
+		break;
+	case 'u':
+		band->ul_cable_loss = num;
+		break;
+	}
+}
+
+static void
+rf_port_line(cp, filename_for_errs, lineno)
+	char *cp, *filename_for_errs;
+{
+	while (isspace(*cp))
+		cp++;
+	if (!isdigit(*cp)) {
+inv:		fprintf(stderr, "%s line %d: invalid syntax for rf-port\n",
+			filename_for_errs, lineno);
+		exit(1);
+	}
+	if (cp[0] != '1' && cp[0] != '2' || isdigit(cp[1])) {
+		fprintf(stderr, "%s line %d: invalid RF port number\n",
+			filename_for_errs, lineno);
+		exit(1);
+	}
+	cmu200_rf_port = *cp++ - '0';
+	while (isspace(*cp))
+		cp++;
+	if (*cp != '\0' && *cp != '#')
+		goto inv;
+}
+
+static void
+process_line(linebuf, filename_for_errs, lineno)
+	char *linebuf, *filename_for_errs;
+{
+	char *cp, *np;
+
+	for (cp = linebuf; isspace(*cp); cp++)
+		;
+	if (*cp == '\0' || *cp == '#')
+		return;
+	for (np = cp; *cp && !isspace(*cp); cp++)
+		;
+	if (*cp)
+		*cp++ = '\0';
+	if (!strcmp(np, "cable-loss"))
+		cable_loss_line(cp, filename_for_errs, lineno);
+	else if (!strcmp(np, "rf-port"))
+		rf_port_line(cp, filename_for_errs, lineno);
+	else {
+		fprintf(stderr, "%s line %d: unknown keyword \"%s\"\n",
+			filename_for_errs, lineno, np);
+		exit(1);
+	}
+}
+
+read_cable_conf_file(cable_conf_name)
+	char *cable_conf_name;
+{
+	char pathname[MAXPATHLEN];
+	FILE *inf;
+	int lineno;
+	char linebuf[512];
+
+	strcpy(pathname, cableconf_directory);
+	strcat(pathname, cable_conf_name);
+	inf = fopen(pathname, "r");
+	if (!inf) {
+		perror(pathname);
+		exit(1);
+	}
+	for (lineno = 1; fgets(linebuf, sizeof linebuf, inf); lineno++)
+		process_line(linebuf, pathname, lineno);
+	fclose(inf);
+}
diff -r 3f92d88fbb1c -r 3ec82dc1dbda cmu200/main.c
--- a/cmu200/main.c	Sun May 28 07:22:09 2017 +0000
+++ b/cmu200/main.c	Fri Jul 14 04:34:15 2017 +0000
@@ -19,14 +19,20 @@
 	extern int optind;
 	int c;
 
-	while ((c = getopt(argc, argv, "1at:")) != EOF)
+	while ((c = getopt(argc, argv, "12ac:t:")) != EOF)
 		switch (c) {
 		case '1':
 			cmu200_rf_port = 1;
 			continue;
+		case '2':
+			cmu200_rf_port = 2;
+			continue;
 		case 'a':
 			cmu200_tx_name = "AUXT";
 			continue;
+		case 'c':
+			read_cable_conf_file(optarg);
+			continue;
 		case 't':
 			bind_socket_pathname = optarg;
 			continue;