3 files changed, 145 insertions, 0 deletions
diff --git a/util/lib/Makefile b/util/lib/Makefile
new file mode 100644
index 0000000..5f55636
--- /dev/null
+++ b/util/lib/Makefile
@@ -0,0 +1,20 @@
+
+CC = gcc
+CFLAGS = -MD -g -Wall -O2 -I../../include -I.
+LFLAGS = -g -Wall
+
+OBJS = lnb.o
+SRCS = $(OBJS:.o=.c)
+
+TARGET = lnb.o
+
+$(TARGET): $(SRCS)
+
+.c.o:
+	$(CC) $(CFLAGS) -c $< -o $@
+
+clean:
+	$(RM) *.o *.d $(TARGET)
+
+-include $(wildcard *.d) dummy
+
diff --git a/util/lib/lnb.c b/util/lib/lnb.c
new file mode 100644
index 0000000..d082181
--- /dev/null
+++ b/util/lib/lnb.c
@@ -0,0 +1,101 @@
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include "lnb.h"
+
+static char *univ_desc[] = {
+		"Europe",
+		"10800 to 11800 MHz and 11600 to 12700 Mhz",
+		"Dual LO, loband 9750, hiband 10600 MHz",
+		(char *)NULL };
+
+static char *dbs_desc[] = {
+		"Expressvu, North America",
+		"12200 to 12700 MHz",
+		"Single LO, 11250 MHz",	
+		(char *)NULL };
+
+static char *standard_desc[] = {
+		"10945 to 11450 Mhz",
+		"Single LO, 10000 Mhz",
+		(char *)NULL };
+
+static char *enhan_desc[] = {
+		"Astra",
+		"10700 to 11700 MHz",
+		"Single LO, 9750 MHz",
+		(char *)NULL };
+
+static char *cband_desc[] = {
+		"Big Dish",
+		"3700 to 4200 MHz",
+		"Single LO, 5150 Mhz",
+		(char *)NULL };
+
+static struct lnb_types_st lnbs[] = {
+	{"UNIVERSAL",	univ_desc,		9750, 10600, 11700 },
+ 	{"DBS",		dbs_desc, 		11250, 0, 0 },
+	{"STANDARD",	standard_desc,		10000, 0, 0 },
+	{"ENHANCED",	enhan_desc,		9750, 0, 0 },
+	{"C-BAND",	cband_desc,		5150, 0, 0 }
+};
+
+/* Enumerate through standard types of LNB's until NULL returned.
+ * Increment curno each time
+ */
+
+struct lnb_types_st *
+lnb_enum(int curno)
+{
+	if (curno >= sizeof(lnbs) / sizeof(lnbs[0]))
+		return (struct lnb_types_st *)NULL;
+	return &lnbs[curno];
+}
+
+/* Decode an lnb type, for example given on a command line
+ * If alpha and standard type, e.g. "Universal" then match that
+ * otherwise low[,high[,switch]]
+ */
+
+int
+lnb_decode(char *str, struct lnb_types_st *lnbp)
+{
+int i;
+char *cp, *np;
+
+	memset(lnbp, 0, sizeof(*lnbp));
+	cp = str;
+	while(*cp && isspace(*cp))
+		cp++;
+	if (isalpha(*cp)) {
+		for(i = 0; i < (sizeof(lnbs) / sizeof(lnbs[0])); i++) {
+			if (!strcasecmp(lnbs[i].name, cp)) {
+				*lnbp = lnbs[i];
+				return 1;
+			}
+		}
+		return -1;
+	}
+	if (*cp == '\0' || !isdigit(*cp))
+		return -1;
+	lnbp->low_val = strtoul(cp, &np, 0);
+	if (lnbp->low_val == 0)
+		return -1;
+	cp = np;
+	while(*cp && (isspace(*cp) || *cp == ','))
+		cp++;
+	if (*cp == '\0')
+		return 1;
+	if (!isdigit(*cp))
+		return -1;
+	lnbp->high_val = strtoul(cp, &np, 0);
+	cp = np;
+	while(*cp && (isspace(*cp) || *cp == ','))
+		cp++;
+	if (*cp == '\0')
+		return 1;
+	if (!isdigit(*cp))
+		return -1;
+	lnbp->switch_val = strtoul(cp, NULL, 0);
+	return 1;
+}
diff --git a/util/lib/lnb.h b/util/lib/lnb.h
new file mode 100644
index 0000000..f78b7a6
--- /dev/null
+++ b/util/lib/lnb.h
@@ -0,0 +1,24 @@
+
+struct lnb_types_st {
+	char	*name;
+	char	**desc;
+	unsigned long	low_val;
+	unsigned long	high_val;	/* zero indicates no hiband */
+	unsigned long	switch_val;	/* zero indicates no hiband */
+};
+
+/* Enumerate through standard types of LNB's until NULL returned.
+ * Increment curno each time
+ */
+
+struct lnb_types_st *
+lnb_enum(int curno);
+
+/* Decode an lnb type, for example given on a command line
+ * If alpha and standard type, e.g. "Universal" then match that
+ * otherwise low[,high[,switch]]
+ */
+
+int
+lnb_decode(char *str, struct lnb_types_st *lnbp);
+