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/*
*
* PCI defines and function prototypes
* Copyright 1994, Drew Eckhardt
* Copyright 1997, 1998 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
*
* For more information, please consult the following manuals (look at
* http://www.pcisig.com/ for how to get them):
*
* PCI BIOS Specification
* PCI Local Bus Specification
* PCI to PCI Bridge Specification
* PCI System Design Guide
*/
#ifndef BSP_POWERPC_PCI_H
#define BSP_POWERPC_PCI_H
#include <rtems/pci.h>
#include <stdio.h>
struct _pin_routes
{
int pin, int_name[4];
};
struct _int_map
{
int bus, slot, opts;
struct _pin_routes pin_route[5];
};
/* If there's a conflict between a name in the routing table and
* what's already set on the device, reprogram the device setting
* to reflect int_name[0] for the routing table entry
*/
#define PCI_FIXUP_OPT_OVERRIDE_NAME (1<<0)
void FixupPCI( const struct _int_map *, int (*swizzler)(int,int) );
/* FIXME: This probably belongs into rtems/pci.h */
extern unsigned char pci_bus_count();
/* FIXME: This also is generic and could go into rtems/pci.h */
/* Scan pci config space and run a user callback on each
* device present; the user callback may return 0 to
* continue the scan or a value > 0 to abort the scan.
* Return values < 0 are reserved and must not be used.
*
* RETURNS: a (opaque) handle pointing to the bus/slot/fn-triple
* just after where the scan was aborted by a callback
* returning 1 (see above) or NULL if all devices were
* scanned.
* The handle may be passed to this routine to resume the
* scan continuing with the device after the one causing the
* abort.
* Pass a NULL 'handle' argument to start scanning from
* the beginning (bus/slot/fn = 0/0/0).
*/
typedef void *BSP_PciScanHandle;
typedef int (*BSP_PciScannerCb)(int bus, int slot, int fun, void *uarg);
BSP_PciScanHandle
BSP_pciScan(BSP_PciScanHandle handle, BSP_PciScannerCb cb, void *uarg);
/* Dump basic config. space info to a file. The argument may
* be NULL in which case 'stdout' is used.
* NOTE: the C-library must be functional before you can use
* this routine.
*/
void
BSP_pciConfigDump(FILE *fp);
#endif /* BSP_POWERPC_PCI_H */
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