1 files changed, 108 insertions, 0 deletions
diff --git a/package/alix-switch/src/alix-switchd.c b/package/alix-switch/src/alix-switchd.c
new file mode 100644
index 000000000..78b52f19c
--- /dev/null
+++ b/package/alix-switch/src/alix-switchd.c
@@ -0,0 +1,108 @@
+/*
+* alix-switchd.c
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation; either version 2 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*/
+
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syslog.h>
+#include <time.h>
+#include <unistd.h>
+#include <sys/io.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#define SCRIPT		"/etc/alix-switch"
+#define GPIOBASE	0x6100
+
+typedef void (*sighandler_t)(int);
+
+static sighandler_t handle_signal (int sig_nr, sighandler_t signalhandler) {
+
+	struct sigaction neu_sig, alt_sig;
+
+	neu_sig.sa_handler = signalhandler;
+	sigemptyset(&neu_sig.sa_mask);
+	neu_sig.sa_flags = SA_RESTART;
+	if (sigaction (sig_nr, &neu_sig, &alt_sig) < 0)
+		return SIG_ERR;
+
+	return alt_sig.sa_handler;
+}
+
+static void start_daemon (void) {
+
+	int i;
+	pid_t pid, sid;
+
+	handle_signal(SIGHUP, SIG_IGN);
+	if ((pid = fork ()) != 0)
+		exit(EXIT_FAILURE);
+	umask(0);
+	if ((sid = setsid()) < 0)
+		exit(EXIT_FAILURE);
+	chdir("/");
+	for (i = sysconf(_SC_OPEN_MAX); i > 0; i--)
+		close(i);
+}
+
+
+int main(int argc, char *argv[]) {
+
+	int i;
+	unsigned long bPort = 0;
+	struct timespec sleep;
+	int bDaemon = 0, bSwitch = 0, bState = 0;
+ 
+	for(i = 1; i < argc; i++) {
+		if (!strcasecmp(argv[i], "-d") || !strcasecmp(argv[i], "--daemon")) {
+			bDaemon = 1;
+		} else {
+			printf( "\nusage: %s [-d | --daemon]\n", argv[0]);
+			exit(EXIT_FAILURE);
+		}
+	}
+
+	if (iopl(3)) {
+		fprintf( stderr, "Could not set I/O permissions to level 3\n");
+		exit(EXIT_FAILURE);
+	}
+   
+	if (bDaemon)
+		start_daemon();
+
+	sleep.tv_sec = 0;
+	sleep.tv_nsec = 50000000;
+
+	while(1) {
+		bPort = inl(GPIOBASE + 0xB0);
+		if ((bPort & 0x100) == 0)
+			bState = 1;
+		else
+			bState = 0;
+      
+		if (bState && !bSwitch)
+     			system(SCRIPT " on");
+
+		bSwitch = bState;
+		nanosleep(&sleep, NULL);
+	}
+
+	if (iopl(0)) {
+      		fprintf(stderr, "Could not set I/O permissions to level 0");
+		exit(EXIT_FAILURE);
+	}
+
+	return EXIT_SUCCESS;
+}