112 lines
2.7 KiB
C
112 lines
2.7 KiB
C
/* arch.h - ARC specific nanokernel interface header */
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/*
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* Copyright (c) 2014 Wind River Systems, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* DESCRIPTION
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* This header contains the ARC specific nanokernel interface. It is
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* included by the nanokernel interface architecture-abstraction header
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* (nanokernel/cpu.h)
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*/
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#ifndef _ARC_ARCH__H_
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#define _ARC_ARCH__H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* APIs need to support non-byte addressible architectures */
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#define OCTET_TO_SIZEOFUNIT(X) (X)
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#define SIZEOFUNIT_TO_OCTET(X) (X)
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#ifdef CONFIG_CPU_ARCV2
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#include <arch/arc/v2/exc.h>
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#include <arch/arc/v2/irq.h>
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#include <arch/arc/v2/ffs.h>
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#include <arch/arc/v2/error.h>
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#include <arch/arc/v2/misc.h>
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#include <arch/arc/v2/aux_regs.h>
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#include <arch/arc/v2/arcv2_irq_unit.h>
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#include <arch/arc/v2/asm_inline.h>
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#include <arch/arc/v2/addr_types.h>
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#endif
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#define STACK_ALIGN 4
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#ifdef __cplusplus
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}
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#endif
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#ifndef _ASMLANGUAGE
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struct irq_desc {
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unsigned int irq;
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unsigned int priority;
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void (*isr)(void *);
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void *parameter;
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};
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/**
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* @brief Connect a routine to interrupt number
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*
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* For the device @a device associates IRQ number @a irq with priority
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* @a priority with the interrupt routine @a isr, that receives parameter
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* @a parameter.
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* IRQ connect static is currently not supported in ARC architecture.
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* The macro is defined as empty for code compatibility with other
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* architectures.
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*
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* @param device Device
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* @param i IRQ number
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* @param p IRQ Priority
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* @param h Interrupt Service Routine
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* @param pm ISR parameter
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*
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* @return N/A
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*
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*/
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#define IRQ_CONNECT_STATIC(device, i, p, h, pm) \
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static struct irq_desc device##_irq_desc = { \
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.irq = i, \
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.priority = p, \
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.isr = h, \
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.parameter = pm, \
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}
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/**
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*
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* @brief Configure interrupt for the device
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*
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* For the selected device, do the neccessary configuration
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* steps to connect and enable the IRQ line with an ISR
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* at the priority requested.
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* @param device - Device name
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* @param i IRQ number
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* @param p Priority for the interruption
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*
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* @return N/A
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*
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*/
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#define IRQ_CONFIG(device, i, p) \
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irq_connect(device##_irq_desc.irq, device##_irq_desc.priority, \
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device##_irq_desc.isr, device##_irq_desc.parameter, 0)
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#endif
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#endif /* _ARC_ARCH__H_ */
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