| /* |
| * ------------------------------------------- |
| * MSP432 DriverLib - v3_10_00_09 |
| * ------------------------------------------- |
| * |
| * --COPYRIGHT--,BSD,BSD |
| * Copyright (c) 2014, Texas Instruments Incorporated |
| * All rights reserved. |
| * |
| * 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. |
| * --/COPYRIGHT--*/ |
| #include <debug.h> |
| #include <interrupt.h> |
| #include <mpu.h> |
| |
| void MPU_enableModule(uint32_t mpuConfig) |
| { |
| // |
| // Check the arguments. |
| // |
| ASSERT(!(mpuConfig & ~(MPU_CONFIG_PRIV_DEFAULT | MPU_CONFIG_HARDFLT_NMI))); |
| |
| // |
| // Set the MPU control bits according to the flags passed by the user, |
| // and also set the enable bit. |
| // |
| MPU->CTRL = mpuConfig | MPU_CTRL_ENABLE_Msk; |
| } |
| |
| void MPU_disableModule(void) |
| { |
| // |
| // Turn off the MPU enable bit. |
| // |
| MPU->CTRL &= ~MPU_CTRL_ENABLE_Msk; |
| |
| } |
| |
| uint32_t MPU_getRegionCount(void) |
| { |
| // |
| // Read the DREGION field of the MPU type register and mask off |
| // the bits of interest to get the count of regions. |
| // |
| return ((MPU->TYPE & MPU_TYPE_DREGION_Msk) >> NVIC_MPU_TYPE_DREGION_S); |
| } |
| |
| void MPU_enableRegion(uint32_t region) |
| { |
| // |
| // Check the arguments. |
| // |
| ASSERT(region < 8); |
| |
| // |
| // Select the region to modify. |
| // |
| MPU->RNR = region; |
| |
| // |
| // Modify the enable bit in the region attributes. |
| // |
| MPU->RASR |= MPU_RASR_ENABLE_Msk; |
| } |
| |
| void MPU_disableRegion(uint32_t region) |
| { |
| // |
| // Check the arguments. |
| // |
| ASSERT(region < 8); |
| |
| // |
| // Select the region to modify. |
| // |
| MPU->RNR = region; |
| |
| // |
| // Modify the enable bit in the region attributes. |
| // |
| MPU->RASR &= ~MPU_RASR_ENABLE_Msk; |
| } |
| |
| void MPU_setRegion(uint32_t region, uint32_t addr, uint32_t flags) |
| { |
| // |
| // Check the arguments. |
| // |
| ASSERT(region < 8); |
| |
| // |
| // Program the base address, use the region field to select the |
| // region at the same time. |
| // |
| MPU->RBAR = addr | region | MPU_RBAR_VALID_Msk; |
| |
| // |
| // Program the region attributes. Set the TEX field and the S, C, |
| // and B bits to fixed values that are suitable for all Stellaris |
| // memory. |
| // |
| MPU->RASR = (flags & ~(MPU_RASR_TEX_Msk | MPU_RASR_C_Msk)) | MPU_RASR_S_Msk |
| | MPU_RASR_B_Msk; |
| } |
| |
| void MPU_getRegion(uint32_t region, uint32_t *addr, uint32_t *pflags) |
| { |
| // |
| // Check the arguments. |
| // |
| ASSERT(region < 8); |
| ASSERT(addr); |
| ASSERT(pflags); |
| |
| // |
| // Select the region to get. |
| // |
| MPU->RNR = region; |
| |
| // |
| // Read and store the base address for the region. |
| // |
| *addr = MPU->RBAR & MPU_RBAR_ADDR_Msk; |
| |
| // |
| // Read and store the region attributes. |
| // |
| *pflags = MPU->RASR; |
| } |
| |
| void MPU_registerInterrupt(void (*intHandler)(void)) |
| { |
| // |
| // Check the arguments. |
| // |
| ASSERT(intHandler); |
| |
| // |
| // Register the interrupt handler. |
| // |
| Interrupt_registerInterrupt(FAULT_MPU, intHandler); |
| |
| } |
| |
| void MPU_unregisterInterrupt(void) |
| { |
| // |
| // Unregister the interrupt handler. |
| // |
| Interrupt_unregisterInterrupt(FAULT_MPU); |
| } |
| |
| void MPU_enableInterrupt(void) |
| { |
| |
| // |
| // Enable the memory management fault. |
| // |
| Interrupt_enableInterrupt(FAULT_MPU); |
| |
| } |
| |
| void MPU_disableInterrupt(void) |
| { |
| // |
| // Disable the interrupt. |
| // |
| Interrupt_disableInterrupt(FAULT_MPU); |
| } |