5
Last change
on this file since bdd4eb87 was
e53daed,
checked in by Daniel Hellstrom <daniel@…>, on 04/09/15 at 14:09:42
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LIBPCI: updated license to rtems.org
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-
Property mode set to
100644
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File size:
962 bytes
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1 | /* PCI Help function, iterate all PCI device children of PCI bus. |
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2 | * |
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3 | * COPYRIGHT (c) 2010 Cobham Gaisler AB. |
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4 | * |
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5 | * The license and distribution terms for this file may be |
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6 | * found in the file LICENSE in this distribution or at |
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7 | * http://www.rtems.org/license/LICENSE. |
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8 | */ |
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9 | |
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10 | #include <pci/cfg.h> |
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11 | |
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12 | /* Iterate over all PCI devices on a bus (not child buses) and call func(), |
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13 | * iteration is stopped if a non-zero value is returned by func(). |
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14 | * |
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15 | * search options: 0 (no child buses), 1 (depth first), 2 (breadth first) |
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16 | */ |
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17 | int pci_for_each_child( |
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18 | struct pci_bus *bus, |
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19 | int (*func)(struct pci_dev *, void *arg), |
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20 | void *arg, |
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21 | int search) |
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22 | { |
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23 | struct pci_dev *dev = bus->devs; |
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24 | int ret; |
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25 | |
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26 | while (dev) { |
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27 | ret = func(dev, arg); |
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28 | if (ret) |
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29 | return ret; |
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30 | if (search == SEARCH_DEPTH && (dev->flags & PCI_DEV_BRIDGE)) { |
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31 | ret = pci_for_each_child((struct pci_bus *)dev, |
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32 | func, arg, search); |
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33 | if (ret) |
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34 | return ret; |
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35 | } |
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36 | dev = dev->next; |
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37 | } |
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38 | |
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39 | return 0; |
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40 | } |
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