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35 lines
1.2 KiB
35 lines
1.2 KiB
/* Generic I/O port emulation, based on MN10300 code |
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* |
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* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. |
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* Written by David Howells (dhowells@redhat.com) |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public Licence |
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* as published by the Free Software Foundation; either version |
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* 2 of the Licence, or (at your option) any later version. |
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*/ |
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#ifndef __ASM_GENERIC_PCI_IOMAP_H |
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#define __ASM_GENERIC_PCI_IOMAP_H |
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struct pci_dev; |
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#ifdef CONFIG_PCI |
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/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ |
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extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); |
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/* Create a virtual mapping cookie for a port on a given PCI device. |
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* Do not call this directly, it exists to make it easier for architectures |
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* to override */ |
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#ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP |
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extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port, |
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unsigned int nr); |
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#else |
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#define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr)) |
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#endif |
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#elif defined(CONFIG_GENERIC_PCI_IOMAP) |
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static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max) |
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{ |
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return NULL; |
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} |
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#endif |
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#endif /* __ASM_GENERIC_IO_H */
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