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/*
* gatemp.c
*
* Gate wrapper implementation
*
* Copyright (C) 2008-2009 Texas Instruments, Inc.
*
* This package 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 PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
* PURPOSE.
*/
/* Standard headers */
#include <linux/types.h>
#include <linux/kernel.h>
/* Module level headers */
#include <igateprovider.h>
#include <gate.h>
/* Structure defining internal object for the Gate Peterson.*/
struct gate_object {
IGATEPROVIDER_SUPEROBJECT; /* For inheritance from IGateProvider */
};
/* Function to enter a Gate */
int *gate_enter_system(void)
{
unsigned long flags;
local_irq_save(flags);
return (int *)flags;
}
/* Function to leave a gate */
void gate_leave_system(int *key)
{
local_irq_restore((unsigned long) key);
}
/* Match with IGateProvider */
static inline int *_gate_enter_system(struct gate_object *obj)
{
(void) obj;
return gate_enter_system();
}
/* Match with IGateProvider */
static inline void _gate_leave_system(struct gate_object *obj, int *key)
{
(void) obj;
gate_leave_system(key);
}
static struct gate_object gate_system_object = {
.enter = (int *(*)(void *))_gate_enter_system,
.leave = (void (*)(void *, int *))_gate_leave_system,
};
struct igateprovider_object *gate_system_handle = \
(struct igateprovider_object *)&gate_system_object;
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