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/************************************************************************************
* arch/avr/src/at91uc3/at91uc3_intc.h
*
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* 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.
*
************************************************************************************/
#ifndef __ARCH_AVR_SRC_AT91UC3_AT91UC3_INTC_H
#define __ARCH_AVR_SRC_AT91UC3_AT91UC3_INTC_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* Register offsets *****************************************************************/
#define AVR32_INTC_IPR_OFFSET(n) ((n) << 2) /* Interrupt priority registers */
#define AVR32_INTC_IRR_OFFSET(n) (0x100 + ((n) << 2)) /* Interrupt request registers */
#define AVR32_INTC_ICR_OFFSET(n) (0x20c - ((n) << 2)) /* Interrupt cause registers */
/* Register Addresses ***************************************************************/
#define AVR32_INTC_IPR(n) (AVR32_INTC_BASE+AVR32_INTC_IPR_OFFSET(n))
#define AVR32_INTC_IRR(n) (AVR32_INTC_BASE+AVR32_INTC_IRR_OFFSET(n))
#define AVR32_INTC_ICR(n) (AVR32_INTC_BASE+AVR32_INTC_ICR_OFFSET(n))
/* Register Bit-field Definitions ***************************************************/
/* Interrupt priority register bit-field definitions */
#define INTC_IPR_AUTOVECTOR_SHIFT (0) /* Bits 0-13: Autovector address */
#define INTC_IPR_AUTOVECTOR_MASK (0x3fff << INTC_IPR_AUTOVECTOR_SHIFT)
#define INTC_IPR_INTLEVEL_SHIFT (30) /* Bits 30-31: Interrupt Level */
#define INTC_IPR_INTLEVEL_MASK (3 << INTC_IPR_INTLEVEL_SHIFT)
# define INTC_IPR_INTLEVEL_INT0 (0 << INTC_IPR_INTLEVEL_SHIFT) /* Lowest priority */
# define INTC_IPR_INTLEVEL_INT1 (1 << INTC_IPR_INTLEVEL_SHIFT)
# define INTC_IPR_INTLEVEL_INT2 (2 << INTC_IPR_INTLEVEL_SHIFT)
# define INTC_IPR_INTLEVEL_INT3 (3 << INTC_IPR_INTLEVEL_SHIFT) /* Highest priority */
/* Interrupt request register bit-field definitions */
#define INTC_IRR_REG(n) (AVR32_INTC_IPR((n) >> 5))
#define INTC_IRR_SHIFT(n) (1 << ((n) & 0x1f))
#define INTC_IRR_MASK(n) (1 << NTC_IRR_SHIFT(n))
/* Interrupt cause register bit-field definitions */
#define INTC_ICR_CAUSE_SHIFT (0) /* Bits 0-5: Interrupt Group Causing Interrupt of Priority n */
#define INTC_ICR_CAUSE_MASK (0x3f << INTC_ICR_CAUSE_SHIFT)
/************************************************************************************
* Public Types
************************************************************************************/
/************************************************************************************
* Public Data
************************************************************************************/
/************************************************************************************
* Public Functions
************************************************************************************/
#endif /* __ARCH_AVR_SRC_AT91UC3_AT91UC3_INTC_H */
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