56 lines
1.0 KiB
C
56 lines
1.0 KiB
C
/*
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* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _ARCH_IRQ_H_
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#define _ARCH_IRQ_H_
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enum pci_int_pin {
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INTX,
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INTA,
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INTB,
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INTC,
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INTD
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};
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enum pirq_pin {
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PIRQA,
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PIRQB,
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PIRQC,
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PIRQD,
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PIRQE,
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PIRQF,
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PIRQG,
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PIRQH
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};
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/* PIRQ link number and value conversion */
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#define LINK_V2N(link) (link - 0x60)
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#define LINK_N2V(link) (link + 0x60)
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#define PIRQ_BITMAP 0xdee0
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struct irq_info;
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/**
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* board_fill_irq_info() - Board-specific irq_info fill routine
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*
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* This fills the irq_info table for any board-specific add-in cards.
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*
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* @slot: pointer to the struct irq_info that is to be filled in
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* @return: number of entries were written to the struct irq_info
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*/
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int board_fill_irq_info(struct irq_info *slot);
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/**
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* pirq_init() - Initialize platform PIRQ routing
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*
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* This initializes the PIRQ routing on the platform and configures all PCI
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* devices' interrupt line register to a working IRQ number on the 8259 PIC.
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*/
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void pirq_init(void);
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#endif /* _ARCH_IRQ_H_ */
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