scan.c File Reference

#include "./pci.h"
#include "hal/cpu/paging.h"
#include <type.h>
#include "memory/kalloc.h"
#include "memory/vm_manager.h"
#include <ioforge/ioforge.h>
#include <ioforge/ioforge_pci.h>
#include <libk/io.h>
#include <libk/serial.h>
#include <str.h>
#include <memory/memory_utils.h>

Go to the source code of this file.

Functions
static pci_segment_t *	find_segment (uint8_t bus)
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)
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)
static void	vxPCIGatheringBusInfo (uint8_t bus, uint8_t device, uint8_t func)
static void	pci_check_bus (uint8_t bus)
static void	pci_check_func (uint8_t bus, uint8_t dev, uint8_t func)
static void	pci_scan_bus (pci_segment_t *s)
void	pci_scan ()

Variables
static pci_segment_t	segments [16]
static size_t	segment_count = 0
static boolean_t	has_ecam = 0
static pci_access_ops_t	legacy_ops

Function Documentation

find_segment()

static pci_segment_t * find_segment ( uint8_t bus )

static

Definition at line 17 of file scan.c.

References pci_segment::bus_start, NULL, segment_count, segments, and pci_segment::valid.

Referenced by pci_read32(), and pci_write32().

pci_check_bus()

static void pci_check_bus ( uint8_t bus )

static

Definition at line 384 of file scan.c.

References header, LOG_INFO, pci_check_func(), and pci_read32().

Referenced by pci_check_func(), and pci_scan_bus().

pci_check_func()

static void pci_check_func ( uint8_t bus, uint8_t dev, uint8_t func )

static

Definition at line 371 of file scan.c.

References pci_check_bus(), pci_read8(), serial_trace, and vxPCIGatheringBusInfo().

Referenced by pci_check_bus().

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_scan_bus()

static void pci_scan_bus ( pci_segment_t * s )

static

Definition at line 410 of file scan.c.

References pci_segment::bus_start, pci_check_bus(), pci_read16(), and pci_read8().

Referenced by pci_scan().

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().

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.

Referenced by mcfg_parse(), and pci_scan().

vxPCIGatheringBusInfo()

static void vxPCIGatheringBusInfo ( uint8_t bus, uint8_t device, uint8_t func )

static

Definition at line 101 of file scan.c.

References addr, ALIGN_DOWN, bar, ioforge_pci_device::bus, cmd, device, get_kernel_vmm_page(), ioforge_pci_device::interrupt_line, ioforge_pci_device::interrupt_pin, ioforge_attach(), IOFORGE_F_VIRTIO, ioforge_get_pci_root(), IOFORGE_PCI, kalloc(), LOG_INFO, memset(), offset, PAGE_SIZE, paging_get_highest_page_map(), paging_reload(), pci, pci_read16(), pci_read32(), pci_read8(), pci_write16(), pci_write32(), serial_printf(), size, value, vma_lookup_free_vaddr(), VMA_REGION_C, vma_register(), and vxMultipleMmap().

Referenced by pci_check_func().

Variable Documentation

has_ecam

boolean_t has_ecam = 0

static

Definition at line 15 of file scan.c.

legacy_ops

pci_access_ops_t legacy_ops

static

Initial value:

= {
    .read32 = legacy_read32,
    .write32 = legacy_write32,
}

Definition at line 42 of file scan.c.

Referenced by pci_scan().

segment_count

size_t segment_count = 0

static

Definition at line 14 of file scan.c.

Referenced by find_segment(), pci_scan(), and register_segment().

segments

pci_segment_t segments[16]

static

Definition at line 13 of file scan.c.

Referenced by find_segment(), pci_read32(), pci_scan(), pci_write32(), and register_segment().