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//*****************************************************************************
//
// mpu.h - Defines and Macros for the memory protection unit.
//
// Copyright (c) 2005-2008 Luminary Micro, Inc. All rights reserved.
//
// Software License Agreement
//
// Luminary Micro, Inc. (LMI) is supplying this software for use solely and
// exclusively on LMI's microcontroller products.
//
// The software is owned by LMI and/or its suppliers, and is protected under
// applicable copyright laws. All rights are reserved. You may not combine
// this software with "viral" open-source software in order to form a larger
// program. Any use in violation of the foregoing restrictions may subject
// the user to criminal sanctions under applicable laws, as well as to civil
// liability for the breach of the terms and conditions of this license.
//
// THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 2523 of the Stellaris Peripheral Driver Library.
//
//*****************************************************************************
#ifndef __MPU_H__
#define __MPU_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
// Flags that can be passed to MPUEnable..
//
//*****************************************************************************
#define MPU_CONFIG_PRIV_DEFAULT 4
#define MPU_CONFIG_HARDFLT_NMI 2
#define MPU_CONFIG_NONE 0
//*****************************************************************************
//
// Flags for the region size to be passed to MPURegionSet.
//
//*****************************************************************************
#define MPU_RGN_SIZE_32B (4 << 1)
#define MPU_RGN_SIZE_64B (5 << 1)
#define MPU_RGN_SIZE_128B (6 << 1)
#define MPU_RGN_SIZE_256B (7 << 1)
#define MPU_RGN_SIZE_512B (8 << 1)
#define MPU_RGN_SIZE_1K (9 << 1)
#define MPU_RGN_SIZE_2K (10 << 1)
#define MPU_RGN_SIZE_4K (11 << 1)
#define MPU_RGN_SIZE_8K (12 << 1)
#define MPU_RGN_SIZE_16K (13 << 1)
#define MPU_RGN_SIZE_32K (14 << 1)
#define MPU_RGN_SIZE_64K (15 << 1)
#define MPU_RGN_SIZE_128K (16 << 1)
#define MPU_RGN_SIZE_256K (17 << 1)
#define MPU_RGN_SIZE_512K (18 << 1)
#define MPU_RGN_SIZE_1M (19 << 1)
#define MPU_RGN_SIZE_2M (20 << 1)
#define MPU_RGN_SIZE_4M (21 << 1)
#define MPU_RGN_SIZE_8M (22 << 1)
#define MPU_RGN_SIZE_16M (23 << 1)
#define MPU_RGN_SIZE_32M (24 << 1)
#define MPU_RGN_SIZE_64M (25 << 1)
#define MPU_RGN_SIZE_128M (26 << 1)
#define MPU_RGN_SIZE_256M (27 << 1)
#define MPU_RGN_SIZE_512M (28 << 1)
#define MPU_RGN_SIZE_1G (29 << 1)
#define MPU_RGN_SIZE_2G (30 << 1)
#define MPU_RGN_SIZE_4G (31 << 1)
//*****************************************************************************
//
// Flags for the permissions to be passed to MPURegionSet.
//
//*****************************************************************************
#define MPU_RGN_PERM_EXEC 0x00000000
#define MPU_RGN_PERM_NOEXEC 0x10000000
#define MPU_RGN_PERM_PRV_NO_USR_NO 0x00000000
#define MPU_RGN_PERM_PRV_RW_USR_NO 0x01000000
#define MPU_RGN_PERM_PRV_RW_USR_RO 0x02000000
#define MPU_RGN_PERM_PRV_RW_USR_RW 0x03000000
#define MPU_RGN_PERM_PRV_RO_USR_NO 0x05000000
#define MPU_RGN_PERM_PRV_RO_USR_RO 0x06000000
//*****************************************************************************
//
// Flags for the sub-region to be passed to MPURegionSet.
//
//*****************************************************************************
#define MPU_SUB_RGN_DISABLE_0 0x00000100
#define MPU_SUB_RGN_DISABLE_1 0x00000200
#define MPU_SUB_RGN_DISABLE_2 0x00000400
#define MPU_SUB_RGN_DISABLE_3 0x00000800
#define MPU_SUB_RGN_DISABLE_4 0x00001000
#define MPU_SUB_RGN_DISABLE_5 0x00002000
#define MPU_SUB_RGN_DISABLE_6 0x00004000
#define MPU_SUB_RGN_DISABLE_7 0x00008000
//*****************************************************************************
//
// Flags to enable or disable a region, to be passed to MPURegionSet.
//
//*****************************************************************************
#define MPU_RGN_ENABLE 1
#define MPU_RGN_DISABLE 0
//*****************************************************************************
//
// API Function prototypes
//
//*****************************************************************************
extern void MPUEnable(unsigned long ulMPUConfig);
extern void MPUDisable(void);
extern unsigned long MPURegionCountGet(void);
extern void MPURegionEnable(unsigned long ulRegion);
extern void MPURegionDisable(unsigned long ulRegion);
extern void MPURegionSet(unsigned long ulRegion, unsigned long ulAddr,
unsigned long ulFlags);
extern void MPURegionGet(unsigned long ulRegion, unsigned long *pulAddr,
unsigned long *pulFlags);
extern void MPUIntRegister(void (*pfnHandler)(void));
extern void MPUIntUnregister(void);
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif // __MPU_H__
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