55 lines
1.0 KiB
C
55 lines
1.0 KiB
C
/*
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* Copyright (c) 2016 Cadence Design Systems, Inc.
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef XTENSA_IRQ_H
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#define XTENSA_IRQ_H
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#include <xtensa_api.h>
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#include <xtensa/xtruntime.h>
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/**
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*
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* @brief Enable an interrupt line
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*
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* Clear possible pending interrupts on the line, and enable the interrupt
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* line. After this call, the CPU will receive interrupts for the specified
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* IRQ.
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*
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* @return N/A
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*/
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static ALWAYS_INLINE void _arch_irq_enable(u32_t irq)
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{
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_xt_ints_on(1 << irq);
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}
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/**
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*
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* @brief Disable an interrupt line
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*
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* Disable an interrupt line. After this call, the CPU will stop receiving
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* interrupts for the specified IRQ.
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*
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* @return N/A
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*/
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static ALWAYS_INLINE void _arch_irq_disable(u32_t irq)
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{
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_xt_ints_off(1 << irq);
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}
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static ALWAYS_INLINE unsigned int _arch_irq_lock(void)
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{
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unsigned int key = XTOS_SET_INTLEVEL(XCHAL_EXCM_LEVEL);
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return key;
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}
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static ALWAYS_INLINE void _arch_irq_unlock(unsigned int key)
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{
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XTOS_RESTORE_INTLEVEL(key);
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}
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#include <irq.h>
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#endif /* XTENSA_IRQ_H */
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