kopia lustrzana https://github.com/espressif/esp-idf
77 wiersze
1.8 KiB
C
77 wiersze
1.8 KiB
C
/*
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* SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "esp_attr.h"
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#include "soc/soc.h"
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#include "soc/soc_caps.h"
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#include "soc/reg_base.h"
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#if SOC_INT_PLIC_SUPPORTED
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#include "soc/interrupt_reg.h"
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#include "soc/plic_reg.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Route any interrupt source to any CPU interrupt, including internal ones
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*
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* @param intr_src Interrupt source to map
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* @param rv_int_num Destination CPU interrupt source, which can be an internal or an external interrupt.
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*/
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FORCE_INLINE_ATTR void interrupt_plic_ll_route(int intr_src, int intr_num)
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{
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REG_WRITE(DR_REG_INTERRUPT_MATRIX_BASE + 4 * intr_src, intr_num);
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}
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/**
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* @brief Get interrupt enable mask
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*
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* @return interrupt enable mask, bit i is 1 if interrupt i is enabled, 0 if interrupt i is disabled
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*/
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FORCE_INLINE_ATTR uint32_t interrupt_plic_ll_get_unmask(void)
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{
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return REG_READ(PLIC_MXINT_ENABLE_REG);
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}
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/**
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* @brief Get the type for the given interrupt
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*
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* @param rv_int_num Interrupt number to get the type of. It can be an internal or an external interrupt.
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*
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* @return 0 for level-triggered type, 1 for edge-triggered interrupt type
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*/
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FORCE_INLINE_ATTR int interrupt_plic_ll_get_type(int rv_int_num)
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{
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uint32_t intr_type_reg = REG_READ(PLIC_MXINT_TYPE_REG);
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return (intr_type_reg & (1 << rv_int_num));
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}
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/**
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* @brief Get the priority for the given interrupt
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*
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* @param rv_int_num Interrupt number to get the priority of. It can be an internal or an external interrupt.
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*
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* @return interrupt priority, between 0 and 7
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*/
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FORCE_INLINE_ATTR int interrupt_plic_ll_get_priority(int rv_int_num)
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{
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return REG_READ(INTERRUPT_PRIO_REG(rv_int_num));
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}
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#ifdef __cplusplus
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}
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#endif
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#endif // SOC_INT_PLIC_SUPPORTED
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