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-rw-r--r--package/alix-switch/src/alix-switchd.c111
1 files changed, 111 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..d98748fa1
--- /dev/null
+++ b/package/alix-switch/src/alix-switchd.c
@@ -0,0 +1,111 @@
+/*
+* 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;
+
+ if (setsid() > 0)
+ exit(EXIT_FAILURE);
+
+ handle_signal(SIGHUP, SIG_IGN);
+
+ if ((pid = fork ()) != 0)
+ exit(EXIT_FAILURE);
+
+ chdir("/");
+ umask(0);
+ 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;
+}