/**************************************************************************** * arch/mips/include/pic32mx/irq.h * * Copyright (C) 2011-2012 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * 3. Neither the name NuttX 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 file should never be included directed but, rather, only indirectly * through nuttx/irq.h */ #ifndef __ARCH_MIPS_INCLUDE_PIC32MX_IRQ_H #define __ARCH_MIPS_INCLUDE_PIC32MX_IRQ_H /**************************************************************************** * Included Files ****************************************************************************/ #include #if defined(CHIP_PIC32MX1) || defined(CHIP_PIC32MX2) # include #elif defined(CHIP_PIC32MX3) || defined(CHIP_PIC32MX4) # include #elif defined(CHIP_PIC32MX5) || defined(CHIP_PIC32MX6) || defined(CHIP_PIC32MX7) # include #else # error "Unknown PIC32MX family #endif /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /**************************************************************************** * Public Types ****************************************************************************/ #ifndef __ASSEMBLY__ /**************************************************************************** * Inline functions ****************************************************************************/ /**************************************************************************** * Name: cp0_getintctl * * Description: * Get the CP0 IntCtl register * * Input Parameters: * None * * Returned Value: * None * ****************************************************************************/ static inline uint32_t cp0_getintctl(void) { register uint32_t intctl; __asm__ __volatile__ ( "\t.set push\n" "\t.set noat\n" "\t mfc0 %0, $12, 1\n" /* Get CP0 IntCtl register */ "\t.set pop\n" : "=r" (intctl) : : "memory" ); return intctl; } /**************************************************************************** * Name: cp0_putintctl * * Description: * Write the CP0 IntCtl register * * Input Parameters: * None * * Returned Value: * None * ****************************************************************************/ static inline void cp0_putintctl(uint32_t intctl) { __asm__ __volatile__ ( "\t.set push\n" "\t.set noat\n" "\t.set noreorder\n" "\tmtc0 %0, $12, 1\n" /* Set the IntCtl to the provided value */ "\t.set pop\n" : : "r" (intctl) : "memory" ); } /**************************************************************************** * Name: cp0_getebase * * Description: * Get the CP0 EBASE register * * Input Parameters: * None * * Returned Value: * None * ****************************************************************************/ static inline uint32_t cp0_getebase(void) { register uint32_t ebase; __asm__ __volatile__ ( "\t.set push\n" "\t.set noat\n" "\t mfc0 %0, $15, 1\n" /* Get CP0 EBASE register */ "\t.set pop\n" : "=r" (ebase) : : "memory" ); return ebase; } /**************************************************************************** * Name: cp0_putebase * * Description: * Write the CP0 EBASE register * * Input Parameters: * None * * Returned Value: * None * ****************************************************************************/ static inline void cp0_putebase(uint32_t ebase) { __asm__ __volatile__ ( "\t.set push\n" "\t.set noat\n" "\t.set noreorder\n" "\tmtc0 %0, $15, 1\n" /* Set the EBASE to the provided value */ "\t.set pop\n" : : "r" (ebase) : "memory" ); } /**************************************************************************** * Public Data ****************************************************************************/ /**************************************************************************** * Public Function Prototypes ****************************************************************************/ #ifdef __cplusplus #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif #undef EXTERN #ifdef __cplusplus } #endif #endif /* __ASSEMBLY__ */ #endif /* __ARCH_MIPS_INCLUDE_PIC32MX_IRQ_H */