pci.h File Reference

#include <type.h>

Go to the source code of this file.

Data Structures
struct	pci_access_ops
struct	pci_segment

Macros
#define	MAX_PCI_BUS   256
#define	PCI_MAX_SEGMENTS   16

Typedefs
typedef struct pci_access_ops	pci_access_ops_t
typedef struct pci_segment	pci_segment_t

Enumerations
enum	PCI_SEGMENT_TYPE : uint8_t { PCI_SEGMENT_LEGACY = 0 , PCI_SEGMENT_PCIE = 1 }
enum	PCI_HEADER_TYPE { PCI_HEADER_TYPE_STANDARD_DEVICE = 0 , PCI_HEADER_TYPE_PCI_TO_PCI_BRIDGE = 1 , PCI_HEADER_TYPE_CARDBUS_BRIDGE = 2 }

Functions
void	pci_scan ()
uint32_t	pci_read32 (uint8_t bus, uint8_t dev, uint8_t func, uint16_t off)
uint64_t	pci_read64 (uint8_t bus, uint8_t dev, uint8_t func, uint16_t off)
uint16_t	pci_read16 (uint8_t bus, uint8_t dev, uint8_t func, uint16_t off)
uint8_t	pci_read8 (uint8_t bus, uint8_t dev, uint8_t func, uint16_t off)
void	pci_write32 (uint8_t bus, uint8_t dev, uint8_t func, uint16_t off, uint32_t val)
void	pci_write64 (uint8_t bus, uint8_t dev, uint8_t func, uint16_t off, uint64_t val)
void	pci_write16 (uint8_t bus, uint8_t dev, uint8_t func, uint16_t off, uint16_t val)
void	pci_write8 (uint8_t bus, uint8_t dev, uint8_t func, uint16_t off, uint8_t val)
uint32_t	legacy_read32 (uintptr_t base, uint8_t bus, uint8_t dev, uint8_t func, uint16_t offset)
void	legacy_write32 (uintptr_t base, uint8_t bus, uint8_t dev, uint8_t func, uint16_t offset, uint32_t val)
void	register_segment (uint16_t seg_id, uint8_t start, uint8_t end, uintptr_t vbase, pci_access_ops_t *ops, PCI_SEGMENT_TYPE type)

Macro Definition Documentation

MAX_PCI_BUS

#define MAX_PCI_BUS   256

Definition at line 6 of file pci.h.

PCI_MAX_SEGMENTS

#define PCI_MAX_SEGMENTS   16

Definition at line 15 of file pci.h.

Referenced by register_segment().

Typedef Documentation

pci_access_ops_t

typedef struct pci_access_ops pci_access_ops_t

pci_segment_t

typedef struct pci_segment pci_segment_t

Enumeration Type Documentation

PCI_HEADER_TYPE

enum PCI_HEADER_TYPE

Enumerator
PCI_HEADER_TYPE_STANDARD_DEVICE
PCI_HEADER_TYPE_PCI_TO_PCI_BRIDGE
PCI_HEADER_TYPE_CARDBUS_BRIDGE

Definition at line 32 of file pci.h.

PCI_SEGMENT_TYPE

enum PCI_SEGMENT_TYPE : uint8_t

Enumerator
PCI_SEGMENT_LEGACY
PCI_SEGMENT_PCIE

Definition at line 17 of file pci.h.

Function Documentation

legacy_read32()

uint32_t legacy_read32	(	uintptr_t	base,
		uint8_t	bus,
		uint8_t	dev,
		uint8_t	func,
		uint16_t	offset )

Definition at line 32 of file pci.c.

References base, offset, and pci_readl().

legacy_write32()

void legacy_write32	(	uintptr_t	base,
		uint8_t	bus,
		uint8_t	dev,
		uint8_t	func,
		uint16_t	offset,
		uint32_t	val )

Definition at line 38 of file pci.c.

References base, offset, and pci_writel().

pci_read16()

uint16_t pci_read16	(	uint8_t	bus,
		uint8_t	dev,
		uint8_t	func,
		uint16_t	off )

Definition at line 62 of file scan.c.

References pci_read32().

Referenced by __attribute__(), pci_scan_bus(), and vxPCIGatheringBusInfo().

pci_read32()

uint32_t pci_read32	(	uint8_t	bus,
		uint8_t	dev,
		uint8_t	func,
		uint16_t	off )

Definition at line 49 of file scan.c.

References find_segment(), pci_segment::ops, pci_access_ops::read32, segments, and pci_segment::vbase.

Referenced by pci_check_bus(), pci_read16(), pci_read64(), pci_read8(), pci_write16(), virtio_scan_capabilities(), and vxPCIGatheringBusInfo().

pci_read64()

uint64_t pci_read64	(	uint8_t	bus,
		uint8_t	dev,
		uint8_t	func,
		uint16_t	off )

Definition at line 56 of file scan.c.

References pci_read32().

pci_read8()

uint8_t pci_read8	(	uint8_t	bus,
		uint8_t	dev,
		uint8_t	func,
		uint16_t	off )

Definition at line 67 of file scan.c.

References pci_read32().

Referenced by for_each_virtio_device(), pci_check_func(), pci_scan_bus(), virtio_scan_capabilities(), and vxPCIGatheringBusInfo().

pci_scan()

void pci_scan

(

)

Definition at line 425 of file scan.c.

References pci_segment::bus_end, pci_segment::bus_start, has_ecam, legacy_ops, LOG_INFO, pci_scan_bus(), PCI_SEGMENT_LEGACY, register_segment(), segment_count, pci_segment::segment_id, segments, and pci_segment::valid.

Referenced by INIT().

pci_write16()

void pci_write16	(	uint8_t	bus,
		uint8_t	dev,
		uint8_t	func,
		uint16_t	off,
		uint16_t	val )

Definition at line 88 of file scan.c.

References pci_read32(), and pci_write32().

Referenced by __attribute__(), and vxPCIGatheringBusInfo().

pci_write32()

void pci_write32	(	uint8_t	bus,
		uint8_t	dev,
		uint8_t	func,
		uint16_t	off,
		uint32_t	val )

Definition at line 72 of file scan.c.

References find_segment(), pci_segment::ops, segments, pci_segment::vbase, and pci_access_ops::write32.

Referenced by __attribute__(), pci_write16(), pci_write64(), and vxPCIGatheringBusInfo().

pci_write64()

void pci_write64	(	uint8_t	bus,
		uint8_t	dev,
		uint8_t	func,
		uint16_t	off,
		uint64_t	val )

Definition at line 80 of file scan.c.

References pci_write32().

pci_write8()

void pci_write8	(	uint8_t	bus,
		uint8_t	dev,
		uint8_t	func,
		uint16_t	off,
		uint8_t	val )

References base, offset, ops, and type.

register_segment()

void register_segment	(	uint16_t	seg_id,
		uint8_t	start,
		uint8_t	end,
		uintptr_t	vbase,
		pci_access_ops_t *	ops,
		PCI_SEGMENT_TYPE	type )

Definition at line 26 of file scan.c.

References pci_segment::bus_end, pci_segment::bus_start, ops, pci_segment::ops, PCI_MAX_SEGMENTS, segment_count, pci_segment::segment_id, segments, pci_segment::type, type, pci_segment::valid, and pci_segment::vbase.