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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6936 | serge | 1 | /* Generic I/O port emulation, based on MN10300 code |
| 2 | * |
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| 3 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. |
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| 4 | * Written by David Howells (dhowells@redhat.com) |
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| 5 | * |
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| 6 | * This program is free software; you can redistribute it and/or |
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| 7 | * modify it under the terms of the GNU General Public Licence |
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| 8 | * as published by the Free Software Foundation; either version |
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| 9 | * 2 of the Licence, or (at your option) any later version. |
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| 10 | */ |
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| 11 | #ifndef __ASM_GENERIC_PCI_IOMAP_H |
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| 12 | #define __ASM_GENERIC_PCI_IOMAP_H |
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| 13 | |||
| 14 | struct pci_dev; |
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| 15 | #ifdef CONFIG_PCI |
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| 16 | /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ |
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| 17 | extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); |
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| 18 | extern void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max); |
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| 19 | extern void __iomem *pci_iomap_range(struct pci_dev *dev, int bar, |
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| 20 | unsigned long offset, |
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| 21 | unsigned long maxlen); |
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| 22 | extern void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar, |
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| 23 | unsigned long offset, |
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| 24 | unsigned long maxlen); |
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| 25 | /* Create a virtual mapping cookie for a port on a given PCI device. |
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| 26 | * Do not call this directly, it exists to make it easier for architectures |
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| 27 | * to override */ |
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| 28 | #ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP |
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| 29 | extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port, |
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| 30 | unsigned int nr); |
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| 31 | #else |
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| 32 | #define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr)) |
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| 33 | #endif |
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| 34 | |||
| 35 | #elif defined(CONFIG_GENERIC_PCI_IOMAP) |
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| 36 | static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max) |
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| 37 | { |
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| 38 | return NULL; |
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| 39 | } |
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| 40 | |||
| 41 | static inline void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max) |
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| 42 | { |
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| 43 | return NULL; |
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| 44 | } |
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| 45 | static inline void __iomem *pci_iomap_range(struct pci_dev *dev, int bar, |
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| 46 | unsigned long offset, |
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| 47 | unsigned long maxlen) |
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| 48 | { |
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| 49 | return NULL; |
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| 50 | } |
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| 51 | static inline void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar, |
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| 52 | unsigned long offset, |
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| 53 | unsigned long maxlen) |
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| 54 | { |
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| 55 | return NULL; |
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| 56 | } |
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| 57 | #endif |
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| 58 | |||
| 59 | #endif /* __ASM_GENERIC_IO_H */ |