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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 */ |