56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
#pragma once
|
|
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
// common
|
|
#define PCI_VENDOR_W 0x00
|
|
#define PCI_DEVICE_W 0x02
|
|
#define PCI_COMMAND_W 0x04
|
|
#define PCI_STATUS_W 0x06
|
|
#define PCI_REVISION_B 0x08
|
|
#define PCI_PROG_IF_B 0x09
|
|
#define PCI_SUBCLASS_B 0x0A
|
|
#define PCI_CLASS_B 0x0B
|
|
#define PCI_CACHE_SIZE_B 0x0C
|
|
#define PCI_LATENCY_TIMER_B 0x0D
|
|
#define PCI_HEADER_TYPE_B 0x0E
|
|
#define PCI_BIST_B 0x0F
|
|
|
|
// header type 0
|
|
#define PCI_BAR0_D 0x10
|
|
#define PCI_BAR1_D 0x14
|
|
#define PCI_BAR2_D 0x18
|
|
#define PCI_BAR3_D 0x1C
|
|
#define PCI_BAR4_D 0x20
|
|
#define PCI_BAR5_D 0x24
|
|
#define PCI_CARDBUS_CIS_D 0x28
|
|
#define PCI_SUBSYSTEM_VENDOR_W 0x2C
|
|
#define PCI_SUBSYSTEM_W 0x2E
|
|
#define PCI_EXPANSION_ROM_D 0x30
|
|
#define PCI_CAP_PTR_B 0x34
|
|
#define PCI_INT_LINE_B 0x3C
|
|
#define PCI_INT_PIN_B 0x3D
|
|
#define PCI_MIN_GRANT_B 0x3E
|
|
#define PCI_MAX_LATENCY_B 0x3F
|
|
|
|
struct PciDevice {
|
|
uint8_t bus: 8;
|
|
uint8_t device: 5;
|
|
uint8_t function: 3;
|
|
};
|
|
|
|
void pci_init(void);
|
|
|
|
bool pci_findby_class(struct PciDevice *dest, uint8_t class, uint8_t subclass, size_t *offset);
|
|
bool pci_findby_id(struct PciDevice *dest, uint16_t device, uint16_t vendor, size_t *offset);
|
|
|
|
uint32_t pci_rcfg_d(struct PciDevice dev, uint8_t offset);
|
|
uint16_t pci_rcfg_w(struct PciDevice dev, uint8_t offset);
|
|
uint8_t pci_rcfg_b(struct PciDevice dev, uint8_t offset);
|
|
|
|
void pci_wcfg_d(struct PciDevice dev, uint8_t offset, uint32_t dword);
|
|
void pci_wcfg_w(struct PciDevice dev, uint8_t offset, uint16_t word);
|
|
void pci_wcfg_b(struct PciDevice dev, uint8_t offset, uint8_t byte);
|