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66eab4df MT |
1 | /* Generic I/O port emulation, based on MN10300 code |
2 | * | |
3 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. | |
4 | * Written by David Howells (dhowells@redhat.com) | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public Licence | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the Licence, or (at your option) any later version. | |
10 | */ | |
11 | #ifndef __ASM_GENERIC_PCI_IOMAP_H | |
12 | #define __ASM_GENERIC_PCI_IOMAP_H | |
13 | ||
14 | struct pci_dev; | |
15 | #ifdef CONFIG_PCI | |
16 | /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ | |
17 | extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); | |
eb29d8d2 MT |
18 | extern void __iomem *pci_iomap_range(struct pci_dev *dev, int bar, |
19 | unsigned long offset, | |
20 | unsigned long maxlen); | |
b923650b MT |
21 | /* Create a virtual mapping cookie for a port on a given PCI device. |
22 | * Do not call this directly, it exists to make it easier for architectures | |
23 | * to override */ | |
24 | #ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP | |
25 | extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port, | |
26 | unsigned int nr); | |
27 | #else | |
28 | #define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr)) | |
29 | #endif | |
30 | ||
97a29d59 | 31 | #elif defined(CONFIG_GENERIC_PCI_IOMAP) |
66eab4df MT |
32 | static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max) |
33 | { | |
34 | return NULL; | |
35 | } | |
eb29d8d2 MT |
36 | |
37 | static inline void __iomem *pci_iomap_range(struct pci_dev *dev, int bar, | |
38 | unsigned long offset, | |
39 | unsigned long maxlen) | |
40 | { | |
41 | return NULL; | |
42 | } | |
66eab4df MT |
43 | #endif |
44 | ||
45 | #endif /* __ASM_GENERIC_IO_H */ |