98 lines
2.7 KiB
C++
98 lines
2.7 KiB
C++
#pragma once
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#include <stdint.h>
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#define PCI_VENDOR_FIELD 0x0
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#define PCI_DEVICE_FIELD 0x2
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#define PCI_SUBCLASS_FIELD 0xa
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#define PCI_CLASS_FIELD 0xb
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#define PCI_REVISION_ID_FIELD 0x8
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#define PCI_PROG_IF_FIELD 0x9
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#define PCI_HEADER_TYPE_FIELD 0xe
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#define PCI_SECONDARY_BUS_NUMBER_FIELD 0x19
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#define PCI_BAR0_FIELD 0x10
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#define PCI_BAR1_FIELD 0x14
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#define PCI_BAR2_FIELD 0x18
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#define PCI_BAR3_FIELD 0x1C
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#define PCI_BAR4_FIELD 0x20
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#define PCI_BAR5_FIELD 0x24
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namespace PCI
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{
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struct DeviceID
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{
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uint16_t vendor;
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uint16_t device;
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};
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struct DeviceType
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{
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uint8_t dev_class;
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uint8_t dev_subclass;
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uint8_t prog_if;
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uint8_t revision;
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};
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struct Device
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{
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void write8(int32_t offset, uint8_t value);
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void write16(int32_t offset, uint16_t value);
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void write32(int32_t offset, uint32_t value);
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uint8_t read8(int32_t offset);
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uint16_t read16(int32_t offset);
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uint32_t read32(int32_t offset);
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uint32_t getBAR0();
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uint32_t getBAR1();
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uint32_t getBAR2();
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uint32_t getBAR3();
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uint32_t getBAR4();
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uint32_t getBAR5();
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uint8_t bus()
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{
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return m_bus;
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}
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uint8_t slot()
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{
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return m_slot;
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}
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uint8_t function()
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{
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return m_function;
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}
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DeviceID id()
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{
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return m_id;
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}
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DeviceType type()
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{
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return m_type;
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}
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Device(DeviceID id, DeviceType type, uint8_t bus, uint8_t slot, uint8_t function);
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Device(uint8_t bus, uint8_t slot, uint8_t function);
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Device(const Device& other);
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private:
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uint8_t m_bus;
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uint8_t m_slot;
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uint8_t m_function;
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DeviceID m_id;
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DeviceType m_type;
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};
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uint32_t raw_address(uint32_t bus, uint32_t slot, uint32_t function, int32_t offset);
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void raw_write8(uint32_t bus, uint32_t slot, uint32_t function, int32_t offset, uint8_t value);
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void raw_write16(uint32_t bus, uint32_t slot, uint32_t function, int32_t offset, uint16_t value);
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void raw_write32(uint32_t bus, uint32_t slot, uint32_t function, int32_t offset, uint32_t value);
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uint8_t raw_read8(uint32_t bus, uint32_t slot, uint32_t function, int32_t offset);
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uint16_t raw_read16(uint32_t bus, uint32_t slot, uint32_t function, int32_t offset);
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uint32_t raw_read32(uint32_t bus, uint32_t slot, uint32_t function, int32_t offset);
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DeviceID get_device_id(uint32_t bus, uint32_t slot, uint32_t function);
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DeviceType get_device_type(uint32_t bus, uint32_t slot, uint32_t function);
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void scan(void (*callback)(PCI::Device&));
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} |