43 lines
1.0 KiB
C
43 lines
1.0 KiB
C
/*
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* (C) Copyright 2002
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* Daniel Engström, Omicron Ceti AB, daniel@omicron.se
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _PCI_I386_H_
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#define _PCI_I386_H_
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#include <pci.h>
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/* bus mapping constants (used for PCI core initialization) */
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#define PCI_REG_ADDR 0xcf8
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#define PCI_REG_DATA 0xcfc
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#define PCI_CFG_EN 0x80000000
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#ifndef __ASSEMBLY__
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int pci_x86_read_config(struct udevice *bus, pci_dev_t bdf, uint offset,
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ulong *valuep, enum pci_size_t size);
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int pci_x86_write_config(struct udevice *bus, pci_dev_t bdf, uint offset,
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ulong value, enum pci_size_t size);
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/**
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* Assign IRQ number to a PCI device
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*
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* This function assigns IRQ for a PCI device. If the device does not exist
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* or does not require interrupts then this function has no effect.
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*
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* @bus: PCI bus number
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* @device: PCI device number
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* @irq: An array of IRQ numbers that are assigned to INTA through
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* INTD of this PCI device.
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*/
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void pci_assign_irqs(int bus, int device, u8 irq[4]);
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#endif /* __ASSEMBLY__ */
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#endif /* _PCI_I386_H_ */
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