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/****************************************************************************
* arch/mips/include/pic32mz/irq.h
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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_PIC32MZ_IRQ_H
#define __ARCH_MIPS_INCLUDE_PIC32MZ_IRQ_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <arch/pic32mz/chip.h>
#if defined(CHIP_PIC32MZEC)
# include <arch/pic32mz/irq_pic32mzxxxec.h>
#else
# error "Unknown PIC32MZ 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 Variables
****************************************************************************/
/****************************************************************************
* 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_PIC32MZ_IRQ_H */
|
