pcidirect.c File Reference

PCI configuration space access via Type 1 accesses. More...

#include <gpxe/io.h>
#include <gpxe/pci.h>

Go to the source code of this file.

Functions
	FILE_LICENCE (GPL2_OR_LATER)
void	pcidirect_prepare (struct pci_device *pci, int where)
	Prepare for Type 1 PCI configuration space access.
	PROVIDE_PCIAPI_INLINE (direct, pci_max_bus)
	PROVIDE_PCIAPI_INLINE (direct, pci_read_config_byte)
	PROVIDE_PCIAPI_INLINE (direct, pci_read_config_word)
	PROVIDE_PCIAPI_INLINE (direct, pci_read_config_dword)
	PROVIDE_PCIAPI_INLINE (direct, pci_write_config_byte)
	PROVIDE_PCIAPI_INLINE (direct, pci_write_config_word)
	PROVIDE_PCIAPI_INLINE (direct, pci_write_config_dword)

---

Detailed Description

PCI configuration space access via Type 1 accesses.

Definition in file pcidirect.c.

---

Function Documentation

FILE_LICENCE

(

GPL2_OR_LATER

)

void pcidirect_prepare	(	struct pci_device *	pci,
		int	where
	)

Prepare for Type 1 PCI configuration space access.

Parameters:

	pci	PCI device
	where	Location within PCI configuration space

Definition at line 36 of file pcidirect.c.

References pci_device::bus, pci_device::devfn, outl, and PCIDIRECT_CONFIG_ADDRESS.

                                                             {
        outl ( ( 0x80000000 | ( pci->bus << 16 ) | ( pci->devfn << 8 ) |
                 ( where & ~3 ) ), PCIDIRECT_CONFIG_ADDRESS );
}

PROVIDE_PCIAPI_INLINE	(	direct	,
		pci_max_bus
	)

PROVIDE_PCIAPI_INLINE	(	direct	,
		pci_read_config_byte
	)

PROVIDE_PCIAPI_INLINE	(	direct	,
		pci_read_config_word
	)

PROVIDE_PCIAPI_INLINE	(	direct	,
		pci_read_config_dword
	)

PROVIDE_PCIAPI_INLINE	(	direct	,
		pci_write_config_byte
	)

PROVIDE_PCIAPI_INLINE	(	direct	,
		pci_write_config_word
	)

PROVIDE_PCIAPI_INLINE	(	direct	,
		pci_write_config_dword
	)