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/* PCI Help function, Find a PCI device by BUS|SLOT|FUNCTION
*
* COPYRIGHT (c) 2010 Cobham Gaisler AB.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <pci.h>
#include <pci/cfg.h>
static int compare_dev_pcidev(struct pci_dev *dev, void *arg)
{
pci_dev_t pcidev = (unsigned)arg;
if (dev->busdevfun == pcidev)
return (int)dev;
else
return 0;
}
/* Get a Device in PCI device tree located in RAM by PCI BUS|SLOT|FUNCTION */
int pci_get_dev(pci_dev_t pcidev, struct pci_dev **ppdev)
{
int result;
result = pci_for_each_dev(compare_dev_pcidev, (void *)(unsigned)pcidev);
if (ppdev)
*ppdev = (struct pci_dev *)result;
if (result == 0)
return -1;
else
return 0;
}
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