initial import

1 files changed, 115 insertions, 0 deletions

diff --git a/fmrx-ctl.c b/fmrx-ctl.c
new file mode 100644
index 0000000..408dadd
--- /dev/null
+++ b/fmrx-ctl.c
@@ -0,0 +1,115 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <glib.h>
+#include <dbus/dbus-glib.h>
+#include <dbus/dbus-glib-lowlevel.h>
+
+static GMainLoop *main_loop;
+static DBusConnection *bus;
+
+static gdouble cmd_tune = 0.0;
+static gboolean cmd_next = FALSE;
+static gboolean cmd_prev = FALSE;
+
+static GOptionEntry entries[] = {
+	{ "tune", 't', 0, G_OPTION_ARG_DOUBLE, &cmd_tune, "Tune to a specific frequency", "MHz" },
+	{ "next", 'n', 0, G_OPTION_ARG_NONE, &cmd_next, "Forward scan for a signal", NULL },
+	{ "prev", 'p', 0, G_OPTION_ARG_NONE, &cmd_prev, "Backward scan for a signal", NULL },
+	{ NULL }
+};
+
+#define BUS_NAME      "com.javispedro.fmrxd"
+#define BUS_PATH      "/com/javispedro/fmrxd"
+#define BUS_INTERFACE BUS_NAME
+
+static void tune(double f)
+{
+	DBusError err;
+	DBusMessage *reply;
+	DBusMessage *msg = dbus_message_new_method_call(BUS_NAME, BUS_PATH,
+												  BUS_INTERFACE, "Tune");
+	g_assert(msg != NULL);
+
+	dbus_error_init(&err);
+
+	dbus_message_append_args(msg, DBUS_TYPE_DOUBLE, &f, DBUS_TYPE_INVALID);
+
+	reply = dbus_connection_send_with_reply_and_block(bus, msg, -1, &err);
+	g_assert(reply != NULL);
+	g_assert(!dbus_error_is_set(&err));
+	dbus_message_unref(msg);
+
+	dbus_message_unref(reply);
+}
+
+static void next()
+{
+	DBusError err;
+	DBusMessage *reply;
+	DBusMessage *msg = dbus_message_new_method_call(BUS_NAME, BUS_PATH,
+												  BUS_INTERFACE, "SearchForward");
+	g_assert(msg != NULL);
+
+	dbus_error_init(&err);
+
+	reply = dbus_connection_send_with_reply_and_block(bus, msg, -1, &err);
+	g_assert(reply != NULL);
+	g_assert(!dbus_error_is_set(&err));
+	dbus_message_unref(msg);
+
+	dbus_message_unref(reply);
+}
+
+static void prev()
+{
+	DBusError err;
+	DBusMessage *reply;
+	DBusMessage *msg = dbus_message_new_method_call(BUS_NAME, BUS_PATH,
+												  BUS_INTERFACE, "SearchBackward");
+	g_assert(msg != NULL);
+
+	dbus_error_init(&err);
+
+	reply = dbus_connection_send_with_reply_and_block(bus, msg, -1, &err);
+	g_assert(reply != NULL);
+	g_assert(!dbus_error_is_set(&err));
+	dbus_message_unref(msg);
+
+	dbus_message_unref(reply);
+}
+
+static void dbus_init()
+{
+	DBusError err;	dbus_error_init(&err);
+	bus = dbus_bus_get(DBUS_BUS_SESSION, &err);
+	g_assert(bus != NULL);
+	g_assert(!dbus_error_is_set(&err));
+	dbus_connection_setup_with_g_main(bus, g_main_loop_get_context(main_loop));
+}
+
+int main(int argc, char **argv)
+{
+	GError *error = NULL;
+	GOptionContext *context = g_option_context_new("- control the fmrxd daemon");
+	main_loop = g_main_loop_new(NULL, FALSE);
+
+	g_option_context_add_main_entries(context, entries, NULL);
+	if (!g_option_context_parse(context, &argc, &argv, &error)) {
+		g_printerr("Option parsing failed: %s\n", error->message);
+		return 1;
+	}
+
+	dbus_init();
+
+	if (cmd_tune > 0.0) {
+		tune(cmd_tune);
+	}
+	if (cmd_prev) {
+		prev();
+	}
+	if (cmd_next) {
+		next();
+	}
+
+	return 0;
+}