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authoretobi <git@e-tobi.net>2013-09-03 09:48:38 +0200
committeretobi <git@e-tobi.net>2013-09-03 09:48:38 +0200
commit6e40287e2f39a80fc72bd8d0fbc1a8334d688c2d (patch)
tree024bef311226653bdd1da4fa588becf5098bcff7 /util/lib/lnb.c
downloadlinux-dvb-apps-6e40287e2f39a80fc72bd8d0fbc1a8334d688c2d.tar.gz
Imported Upstream version 1.1.0upstream/1.1.0
Diffstat (limited to 'util/lib/lnb.c')
-rw-r--r--util/lib/lnb.c101
1 files changed, 101 insertions, 0 deletions
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;
+}