Fixed MTP to work with TWRP

drivers/gud/gud-exynos7870/TlcTui/trustedui.c

@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2013 TRUSTONIC LIMITED
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * 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.
+ */
+
+/**
+ * File            : trustedui.c
+ * Created         : 26-02-2010
+ */
+
+#include <linux/spinlock.h>
+#include <linux/module.h>
+#include <linux/t-base-tui.h>
+
+static int trustedui_mode = TRUSTEDUI_MODE_OFF;
+static int trustedui_blank_counter;
+
+static DEFINE_SPINLOCK(trustedui_lock);
+
+int trustedui_blank_inc(void)
+{
+	unsigned long flags;
+	int newvalue;
+
+	spin_lock_irqsave(&trustedui_lock, flags);
+	newvalue = ++trustedui_blank_counter;
+	spin_unlock_irqrestore(&trustedui_lock, flags);
+
+	return newvalue;
+}
+EXPORT_SYMBOL(trustedui_blank_inc);
+
+int trustedui_blank_dec(void)
+{
+	unsigned long flags;
+	int newvalue;
+
+	spin_lock_irqsave(&trustedui_lock, flags);
+	newvalue = --trustedui_blank_counter;
+	spin_unlock_irqrestore(&trustedui_lock, flags);
+
+	return newvalue;
+}
+EXPORT_SYMBOL(trustedui_blank_dec);
+
+int trustedui_blank_get_counter(void)
+{
+	unsigned long flags;
+	int newvalue;
+
+	spin_lock_irqsave(&trustedui_lock, flags);
+	newvalue = trustedui_blank_counter;
+	spin_unlock_irqrestore(&trustedui_lock, flags);
+
+	return newvalue;
+}
+EXPORT_SYMBOL(trustedui_blank_get_counter);
+
+void trustedui_blank_set_counter(int counter)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&trustedui_lock, flags);
+	trustedui_blank_counter = counter;
+	spin_unlock_irqrestore(&trustedui_lock, flags);
+}
+EXPORT_SYMBOL(trustedui_blank_set_counter);
+
+int trustedui_get_current_mode(void)
+{
+	unsigned long flags;
+	int mode;
+
+	spin_lock_irqsave(&trustedui_lock, flags);
+	mode = trustedui_mode;
+	spin_unlock_irqrestore(&trustedui_lock, flags);
+
+	return mode;
+}
+EXPORT_SYMBOL(trustedui_get_current_mode);
+
+void trustedui_set_mode(int mode)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&trustedui_lock, flags);
+	trustedui_mode = mode;
+	spin_unlock_irqrestore(&trustedui_lock, flags);
+}
+EXPORT_SYMBOL(trustedui_set_mode);
+
+
+int trustedui_set_mask(int mask)
+{
+	unsigned long flags;
+	int mode;
+
+	spin_lock_irqsave(&trustedui_lock, flags);
+	mode = trustedui_mode |= mask;
+	spin_unlock_irqrestore(&trustedui_lock, flags);
+
+	return mode;
+}
+EXPORT_SYMBOL(trustedui_set_mask);
+
+int trustedui_clear_mask(int mask)
+{
+	unsigned long flags;
+	int mode;
+
+	spin_lock_irqsave(&trustedui_lock, flags);
+	mode = trustedui_mode &= ~mask;
+	spin_unlock_irqrestore(&trustedui_lock, flags);
+
+	return mode;
+}
+EXPORT_SYMBOL(trustedui_clear_mask);
+
+MODULE_AUTHOR("Trustonic Limited");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("<t-base TUI");