mirror of
https://github.com/espressif/ESP8266_RTOS_SDK.git
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61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
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// Copyright 2018 Espressif Systems (Shanghai) PTE LTD
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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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#ifndef _IRQFLAGS_H
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#define _IRQFLAGS_H
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef CONFIG_IDF_TARGET_ESP8266
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/**
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* @brief save IRQ state and disable IRQ
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*
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* @return saved IRQ state
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*/
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static inline uint32_t arch_local_irq_save(void)
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{
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uint32_t tmp;
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__asm__ __volatile__ ("rsil %0, 3" : "=a" (tmp) :: "memory");
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return tmp;
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}
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/**
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* @brief restore IRQ state
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*
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* @param tmp saved IRQ state
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*/
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static inline void arch_local_irq_restore(uint32_t tmp)
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{
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__asm__ __volatile__ ("wsr %0, ps" :: "a" (tmp) : "memory");
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}
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#define local_irq_declare(_t) uint32_t (_t)
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#define local_irq_save(_t) (_t) = arch_local_irq_save()
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#define local_irq_restore(_t) arch_local_irq_restore(_t)
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _IRQFLAGS_H */
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