123 lines
2.7 KiB
C
123 lines
2.7 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2013-2015,2020 TRUSTONIC LIMITED
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/spinlock.h>
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#include <linux/module.h>
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#include <t-base-tui.h>
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static int trustedui_mode = TRUSTEDUI_MODE_OFF;
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static int trustedui_blank_counter;
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static DEFINE_SPINLOCK(trustedui_lock);
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int trustedui_blank_inc(void)
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{
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unsigned long flags;
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int newvalue;
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spin_lock_irqsave(&trustedui_lock, flags);
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newvalue = ++trustedui_blank_counter;
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spin_unlock_irqrestore(&trustedui_lock, flags);
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return newvalue;
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}
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EXPORT_SYMBOL(trustedui_blank_inc);
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int trustedui_blank_dec(void)
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{
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unsigned long flags;
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int newvalue;
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spin_lock_irqsave(&trustedui_lock, flags);
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newvalue = --trustedui_blank_counter;
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spin_unlock_irqrestore(&trustedui_lock, flags);
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return newvalue;
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}
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EXPORT_SYMBOL(trustedui_blank_dec);
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int trustedui_blank_get_counter(void)
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{
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unsigned long flags;
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int newvalue;
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spin_lock_irqsave(&trustedui_lock, flags);
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newvalue = trustedui_blank_counter;
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spin_unlock_irqrestore(&trustedui_lock, flags);
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return newvalue;
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}
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EXPORT_SYMBOL(trustedui_blank_get_counter);
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void trustedui_blank_set_counter(int counter)
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{
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unsigned long flags;
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spin_lock_irqsave(&trustedui_lock, flags);
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trustedui_blank_counter = counter;
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spin_unlock_irqrestore(&trustedui_lock, flags);
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}
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EXPORT_SYMBOL(trustedui_blank_set_counter);
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int trustedui_get_current_mode(void)
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{
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unsigned long flags;
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int mode;
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spin_lock_irqsave(&trustedui_lock, flags);
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mode = trustedui_mode;
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spin_unlock_irqrestore(&trustedui_lock, flags);
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return mode;
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}
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EXPORT_SYMBOL(trustedui_get_current_mode);
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void trustedui_set_mode(int mode)
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{
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unsigned long flags;
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spin_lock_irqsave(&trustedui_lock, flags);
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trustedui_mode = mode;
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spin_unlock_irqrestore(&trustedui_lock, flags);
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}
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EXPORT_SYMBOL(trustedui_set_mode);
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int trustedui_set_mask(int mask)
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{
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unsigned long flags;
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int mode;
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spin_lock_irqsave(&trustedui_lock, flags);
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mode = trustedui_mode |= mask;
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spin_unlock_irqrestore(&trustedui_lock, flags);
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return mode;
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}
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EXPORT_SYMBOL(trustedui_set_mask);
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int trustedui_clear_mask(int mask)
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{
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unsigned long flags;
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int mode;
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spin_lock_irqsave(&trustedui_lock, flags);
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mode = trustedui_mode &= ~mask;
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spin_unlock_irqrestore(&trustedui_lock, flags);
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return mode;
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}
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EXPORT_SYMBOL(trustedui_clear_mask);
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