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#ifndef _IPXE_PCIBRIDGE_H
#define _IPXE_PCIBRIDGE_H
/** @file
*
* PCI-to-PCI bridge
*
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <stdint.h>
#include <ipxe/list.h>
#include <ipxe/pci.h>
/** A PCI-to-PCI bridge */
struct pci_bridge {
/** PCI device */
struct pci_device *pci;
/** Bridge numbers */
union {
/** Raw dword */
uint32_t buses;
struct {
/** Primary bus */
uint8_t primary;
/** Secondary bus */
uint8_t secondary;
/** Subordinate bus */
uint8_t subordinate;
} __attribute__ (( packed ));
};
/** Memory base */
uint32_t membase;
/** Memory limit */
uint32_t memlimit;
/** List of bridges */
struct list_head list;
};
extern struct pci_bridge * pcibridge_find ( struct pci_device *pci );
#endif /* _IPXE_PCIBRIDGE_H */
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