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package device
import (
"encoding/binary"
"io"
"log"
)
// Subtypes of ACPI Device
// Section 10.3.3 - ACPI Device Path
const (
_ DevicePathSubType = iota
ACPIDevice
ExpandedACPIDevice
)
type ACPIDevicePath struct {
EFIDevicePath
HID [4]byte
UID [4]byte
}
func (a ACPIDevicePath) Format() string {
return "No format"
}
func ParseACPIDevicePath(f io.Reader, efi *EFIDevicePath) EFIDevicePaths {
switch efi.SubType {
case ACPIDevice:
a := ACPIDevicePath{EFIDevicePath: *efi}
for _, i := range []interface{}{&a.HID, &a.UID} {
if err := binary.Read(f, binary.LittleEndian, i); err != nil {
log.Fatalf("Can't prase ACPI Device Path: %s", err)
}
}
return a
case ExpandedACPIDevice:
log.Fatalf("Not implemented ACPIDevicePath type: %x\n", efi.SubType)
default:
log.Printf("Not implemented ACPIDevicePath type: %x\n", efi.SubType)
}
return nil
}
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