69 lines
2.5 KiB
C
69 lines
2.5 KiB
C
/****************************************************************************
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* arch/risc-v/include/litex/irq.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __ARCH_RISCV_INCLUDE_LITEX_IRQ_H
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#define __ARCH_RISCV_INCLUDE_LITEX_IRQ_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#ifdef CONFIG_LITEX_USE_CUSTOM_IRQ_DEFINITIONS
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#include CONFIG_LITEX_CUSTOM_IRQ_DEFINITIONS_PATH
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#else
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#include <arch/mode.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Map RISC-V exception code to NuttX IRQ */
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#define LITEX_IRQ_UART0 (RISCV_IRQ_EXT + 1)
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#define LITEX_IRQ_TIMER0 (RISCV_IRQ_EXT + 2)
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#define LITEX_IRQ_ETHMAC (RISCV_IRQ_EXT + 3)
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#define LITEX_IRQ_SDCARD (RISCV_IRQ_EXT + 4)
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#define LITEX_IRQ_GPIO (RISCV_IRQ_EXT + 5)
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/* The last hardware IRQ number */
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#define LITEX_IRQ_LAST (LITEX_IRQ_GPIO)
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/* Second level GPIO interrupts. GPIO interrupts are decoded and dispatched
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* as a second level of decoding: The first level dispatches to the GPIO
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* interrupt handler. The second to the decoded GPIO interrupt handler.
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*/
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#ifdef CONFIG_LITEX_GPIO_IRQ
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# define LITEX_NIRQ_GPIO 32
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# define LITEX_FIRST_GPIOIRQ (LITEX_IRQ_LAST + 1)
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# define LITEX_LAST_GPIOIRQ (LITES_FIRST_GPIOIRQ + LITEX_NIRQ_GPIO)
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#else
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# define LITEX_NIRQ_GPIO 0
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#endif
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/* Total number of IRQs */
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#define NR_IRQS (LITEX_IRQ_LAST + LITEX_NIRQ_GPIO + 1)
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#endif /* CONFIG_LITEX_USE_CUSTOM_IRQ_DEFINITIONS */
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#endif /* __ARCH_RISCV_INCLUDE_LITEX_IRQ_H */
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