4.115
Last change
on this file since 358b8543 was
a31845f7,
checked in by Daniel Hellstrom <daniel@…>, on 11/28/11 at 09:11:10
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LIBPCI: added PCI layer to cpukit/libpci
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Property mode set to
100644
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File size:
815 bytes
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1 | /* PCI Help function, Find a PCI device by BUS|SLOT|FUNCTION |
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2 | * |
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3 | * COPYRIGHT (c) 2010. |
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4 | * Cobham Gaisler AB. |
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5 | * |
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6 | * The license and distribution terms for this file may be |
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7 | * found in the file LICENSE in this distribution or at |
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8 | * http://www.rtems.com/license/LICENSE. |
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9 | */ |
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10 | |
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11 | #include <pci.h> |
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12 | #include <pci/cfg.h> |
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13 | |
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14 | static int compare_dev_pcidev(struct pci_dev *dev, void *arg) |
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15 | { |
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16 | pci_dev_t pcidev = (unsigned)arg; |
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17 | |
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18 | if (dev->busdevfun == pcidev) |
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19 | return (int)dev; |
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20 | else |
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21 | return 0; |
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22 | } |
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23 | |
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24 | /* Get a Device in PCI device tree located in RAM by PCI BUS|SLOT|FUNCTION */ |
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25 | int pci_get_dev(pci_dev_t pcidev, struct pci_dev **ppdev) |
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26 | { |
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27 | int result; |
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28 | |
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29 | result = pci_for_each_dev(compare_dev_pcidev, (void *)(unsigned)pcidev); |
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30 | if (ppdev) |
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31 | *ppdev = (struct pci_dev *)result; |
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32 | if (result == 0) |
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33 | return -1; |
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34 | else |
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35 | return 0; |
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36 | } |
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