1 files changed, 60 insertions, 0 deletions
diff --git a/samsung-ipc/wakelock.c b/samsung-ipc/wakelock.c
new file mode 100644
index 0000000..1daaec9
--- /dev/null
+++ b/samsung-ipc/wakelock.c
@@ -0,0 +1,60 @@
+/**
+ * This file is part of libsamsung-ipc.
+ *
+ * Copyright (C) 2012 Alexander Tarasikov <alexander.tarasikov@gmail.com>
+ *
+ * libsamsung-ipc 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * libsamsung-ipc 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with libsamsung-ipc.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <assert.h>
+#include <fcntl.h>
+#include <wakelock.h>
+
+static int wake_lock_fd = -1;
+static int wake_unlock_fd = -1;
+
+int wake_lock(char *lock_name) {
+	int rc;
+	assert(lock_name != NULL);
+	
+	if (wake_lock_fd < 0) {
+		wake_lock_fd = open("/sys/power/wake_lock", O_RDWR);
+	}
+
+	if (wake_lock_fd < 0) {
+		return wake_lock_fd;
+	}
+
+	rc = write(wake_lock_fd, lock_name, strlen(lock_name));
+
+	return rc;
+}
+
+int wake_unlock(char *lock_name) {
+	int rc;
+	assert(lock_name != NULL);
+	
+	if (wake_unlock_fd < 0) {
+		wake_unlock_fd = open("/sys/power/wake_unlock", O_RDWR);
+	}
+
+	if (wake_unlock_fd < 0) {
+		return wake_lock_fd;
+	}
+
+	rc = write(wake_unlock_fd, lock_name, strlen(lock_name));
+
+	return rc;
+}