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//*****************************************************************************
//
// mpu.h - Defines and Macros for the memory protection unit.
//
// Copyright (c) 2005-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the
// distribution.
//
// Neither the name of Texas Instruments Incorporated nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// This is part of revision 1.1 of the Tiva Peripheral Driver Library.
//
//*****************************************************************************
#ifndef __DRIVERLIB_MPU_H__
#define __DRIVERLIB_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(uint32_t ui32MPUConfig);
extern void MPUDisable(void);
extern uint32_t MPURegionCountGet(void);
extern void MPURegionEnable(uint32_t ui32Region);
extern void MPURegionDisable(uint32_t ui32Region);
extern void MPURegionSet(uint32_t ui32Region, uint32_t ui32Addr,
uint32_t ui32Flags);
extern void MPURegionGet(uint32_t ui32Region, uint32_t *pui32Addr,
uint32_t *pui32Flags);
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 // __DRIVERLIB_MPU_H__
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