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std/os/uefi: device path protocol improvements
This commit is contained in:
Nick Erdmann
parent
9f475dae14
commit
6c368b9e73
@ -1,7 +1,15 @@
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pub const LoadedImageProtocol = @import("protocols/loaded_image_protocol.zig").LoadedImageProtocol;
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pub const loaded_image_device_path_protocol_guid = @import("protocols/loaded_image_protocol.zig").loaded_image_device_path_protocol_guid;
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pub const AcpiDevicePath = @import("protocols/device_path_protocol.zig").AcpiDevicePath;
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pub const BiosBootSpecificationDevicePath = @import("protocols/device_path_protocol.zig").BiosBootSpecificationDevicePath;
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pub const DevicePath = @import("protocols/device_path_protocol.zig").DevicePath;
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pub const DevicePathProtocol = @import("protocols/device_path_protocol.zig").DevicePathProtocol;
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pub const DevicePathType = @import("protocols/device_path_protocol.zig").DevicePathType;
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pub const EndDevicePath = @import("protocols/device_path_protocol.zig").EndDevicePath;
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pub const HardwareDevicePath = @import("protocols/device_path_protocol.zig").HardwareDevicePath;
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pub const MediaDevicePath = @import("protocols/device_path_protocol.zig").MediaDevicePath;
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pub const MessagingDevicePath = @import("protocols/device_path_protocol.zig").MessagingDevicePath;
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pub const SimpleFileSystemProtocol = @import("protocols/simple_file_system_protocol.zig").SimpleFileSystemProtocol;
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pub const FileProtocol = @import("protocols/file_protocol.zig").FileProtocol;
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@ -1,8 +1,8 @@
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const uefi = @import("std").os.uefi;
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const Guid = uefi.Guid;
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pub const DevicePathProtocol = extern struct {
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type: u8,
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pub const DevicePathProtocol = packed struct {
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type: DevicePathType,
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subtype: u8,
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length: u16,
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@ -14,4 +14,340 @@ pub const DevicePathProtocol = extern struct {
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.clock_seq_low = 0x39,
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.node = [_]u8{ 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b },
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};
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pub fn getDevicePath(self: *const DevicePathProtocol) ?DevicePath {
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return switch (self.type) {
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.Hardware => blk: {
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const hardware: ?HardwareDevicePath = switch (@intToEnum(HardwareDevicePath.Subtype, self.subtype)) {
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.Pci => .{ .Pci = @ptrCast(*const HardwareDevicePath.PciDevicePath, self) },
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.PcCard => .{ .PcCard = @ptrCast(*const HardwareDevicePath.PcCardDevicePath, self) },
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.MemoryMapped => .{ .MemoryMapped = @ptrCast(*const HardwareDevicePath.MemoryMappedDevicePath, self) },
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.Vendor => .{ .Vendor = @ptrCast(*const HardwareDevicePath.VendorDevicePath, self) },
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.Controller => .{ .Controller = @ptrCast(*const HardwareDevicePath.ControllerDevicePath, self) },
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.Bmc => .{ .Bmc = @ptrCast(*const HardwareDevicePath.BmcDevicePath, self) },
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_ => null,
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};
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break :blk if (hardware) |h| .{ .Hardware = h } else null;
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},
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.Acpi => blk: {
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const acpi: ?AcpiDevicePath = switch (@intToEnum(AcpiDevicePath.Subtype, self.subtype)) {
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else => null, // TODO
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};
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break :blk if (acpi) |a| .{ .Acpi = a } else null;
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},
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.Messaging => blk: {
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const messaging: ?MessagingDevicePath = switch (@intToEnum(MessagingDevicePath.Subtype, self.subtype)) {
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else => null, // TODO
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};
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break :blk if (messaging) |m| .{ .Messaging = m } else null;
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},
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.Media => blk: {
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const media: ?MediaDevicePath = switch (@intToEnum(MediaDevicePath.Subtype, self.subtype)) {
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.HardDrive => .{ .HardDrive = @ptrCast(*const MediaDevicePath.HardDriveDevicePath, self) },
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.Cdrom => .{ .Cdrom = @ptrCast(*const MediaDevicePath.CdromDevicePath, self) },
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.Vendor => .{ .Vendor = @ptrCast(*const MediaDevicePath.VendorDevicePath, self) },
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.FilePath => .{ .FilePath = @ptrCast(*const MediaDevicePath.FilePathDevicePath, self) },
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.MediaProtocol => .{ .MediaProtocol = @ptrCast(*const MediaDevicePath.MediaProtocolDevicePath, self) },
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.PiwgFirmwareFile => .{ .PiwgFirmwareFile = @ptrCast(*const MediaDevicePath.PiwgFirmwareFileDevicePath, self) },
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.PiwgFirmwareVolume => .{ .PiwgFirmwareVolume = @ptrCast(*const MediaDevicePath.PiwgFirmwareVolumeDevicePath, self) },
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.RelativeOffsetRange => .{ .RelativeOffsetRange = @ptrCast(*const MediaDevicePath.RelativeOffsetRangeDevicePath, self) },
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.RamDisk => .{ .RamDisk = @ptrCast(*const MediaDevicePath.RamDiskDevicePath, self) },
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_ => null,
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};
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break :blk if (media) |m| .{ .Media = m } else null;
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},
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.BiosBootSpecification => blk: {
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const bbs: ?BiosBootSpecificationDevicePath = switch (@intToEnum(BiosBootSpecificationDevicePath.Subtype, self.subtype)) {
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.BBS101 => .{ .BBS101 = @ptrCast(*const BiosBootSpecificationDevicePath.BBS101DevicePath, self) },
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_ => null,
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};
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break :blk if (bbs) |b| .{ .BiosBootSpecification = b } else null;
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},
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.End => blk: {
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const end: ?EndDevicePath = switch (@intToEnum(EndDevicePath.Subtype, self.subtype)) {
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.EndEntire => .{ .EndEntire = @ptrCast(*const EndDevicePath.EndEntireDevicePath, self) },
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.EndThisInstance => .{ .EndThisInstance = @ptrCast(*const EndDevicePath.EndThisInstanceDevicePath, self) },
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_ => null,
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};
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break :blk if (end) |e| .{ .End = e } else null;
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},
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_ => null,
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};
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}
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};
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pub const DevicePath = union(DevicePathType) {
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Hardware: HardwareDevicePath,
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Acpi: AcpiDevicePath,
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Messaging: MessagingDevicePath,
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Media: MediaDevicePath,
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BiosBootSpecification: BiosBootSpecificationDevicePath,
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End: EndDevicePath,
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};
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pub const DevicePathType = extern enum(u8) {
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Hardware = 0x01,
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Acpi = 0x02,
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Messaging = 0x03,
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Media = 0x04,
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BiosBootSpecification = 0x05,
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End = 0x7f,
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_,
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};
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pub const HardwareDevicePath = union(Subtype) {
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Pci: *const PciDevicePath,
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PcCard: *const PcCardDevicePath,
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MemoryMapped: *const MemoryMappedDevicePath,
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Vendor: *const VendorDevicePath,
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Controller: *const ControllerDevicePath,
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Bmc: *const BmcDevicePath,
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pub const Subtype = extern enum(u8) {
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Pci = 1,
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PcCard = 2,
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MemoryMapped = 3,
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Vendor = 4,
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Controller = 5,
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Bmc = 6,
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_,
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};
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pub const PciDevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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// TODO
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};
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pub const PcCardDevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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// TODO
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};
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pub const MemoryMappedDevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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// TODO
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};
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pub const VendorDevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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// TODO
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};
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pub const ControllerDevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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// TODO
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};
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pub const BmcDevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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// TODO
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};
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};
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pub const AcpiDevicePath = union(Subtype) {
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Acpi: void, // TODO
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ExpandedAcpi: void, // TODO
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Adr: void, // TODO
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Nvdimm: void, // TODO
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pub const Subtype = extern enum(u8) {
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Acpi = 1,
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ExpandedAcpi = 2,
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Adr = 3,
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Nvdimm = 4,
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_,
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};
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};
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pub const MessagingDevicePath = union(Subtype) {
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Atapi: void, // TODO
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Scsi: void, // TODO
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FibreChannel: void, // TODO
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FibreChannelEx: void, // TODO
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@"1394": void, // TODO
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Usb: void, // TODO
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Sata: void, // TODO
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UsbWwid: void, // TODO
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Lun: void, // TODO
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UsbClass: void, // TODO
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I2o: void, // TODO
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MacAddress: void, // TODO
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Ipv4: void, // TODO
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Ipv6: void, // TODO
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Vlan: void, // TODO
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InfiniBand: void, // TODO
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Uart: void, // TODO
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Vendor: void, // TODO
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pub const Subtype = extern enum(u8) {
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Atapi = 1,
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Scsi = 2,
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FibreChannel = 3,
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FibreChannelEx = 21,
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@"1394" = 4,
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Usb = 5,
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Sata = 18,
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UsbWwid = 16,
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Lun = 17,
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UsbClass = 15,
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I2o = 6,
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MacAddress = 11,
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Ipv4 = 12,
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Ipv6 = 13,
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Vlan = 20,
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InfiniBand = 9,
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Uart = 14,
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Vendor = 10,
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_,
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};
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};
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pub const MediaDevicePath = union(Subtype) {
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HardDrive: *const HardDriveDevicePath,
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Cdrom: *const CdromDevicePath,
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Vendor: *const VendorDevicePath,
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FilePath: *const FilePathDevicePath,
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MediaProtocol: *const MediaProtocolDevicePath,
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PiwgFirmwareFile: *const PiwgFirmwareFileDevicePath,
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PiwgFirmwareVolume: *const PiwgFirmwareVolumeDevicePath,
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RelativeOffsetRange: *const RelativeOffsetRangeDevicePath,
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RamDisk: *const RamDiskDevicePath,
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pub const Subtype = extern enum(u8) {
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HardDrive = 1,
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Cdrom = 2,
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Vendor = 3,
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FilePath = 4,
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MediaProtocol = 5,
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PiwgFirmwareFile = 6,
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PiwgFirmwareVolume = 7,
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RelativeOffsetRange = 8,
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RamDisk = 9,
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_,
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};
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pub const HardDriveDevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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// TODO
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};
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pub const CdromDevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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// TODO
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};
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pub const VendorDevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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// TODO
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};
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pub const FilePathDevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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pub fn getPath(self: *const FilePathDevicePath) [*:0]const u16 {
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return @ptrCast([*:0]const u16, @alignCast(2, @ptrCast([*]const u8, self)) + @sizeOf(FilePathDevicePath));
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}
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};
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pub const MediaProtocolDevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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// TODO
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};
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pub const PiwgFirmwareFileDevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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};
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pub const PiwgFirmwareVolumeDevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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};
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pub const RelativeOffsetRangeDevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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reserved: u32,
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start: u64,
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end: u64,
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};
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pub const RamDiskDevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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start: u64,
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end: u64,
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disk_type: uefi.Guid,
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instance: u16,
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};
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};
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pub const BiosBootSpecificationDevicePath = union(Subtype) {
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BBS101: *const BBS101DevicePath,
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pub const Subtype = extern enum(u8) {
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BBS101 = 1,
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_,
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};
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pub const BBS101DevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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device_type: u16,
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status_flag: u16,
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pub fn getDescription(self: *const BBS101DevicePath) [*:0]const u8 {
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return @ptrCast([*:0]const u8, self) + @sizeOf(BBS101DevicePath);
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}
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};
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};
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pub const EndDevicePath = union(Subtype) {
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EndEntire: *const EndEntireDevicePath,
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EndThisInstance: *const EndThisInstanceDevicePath,
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pub const Subtype = extern enum(u8) {
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EndEntire = 0xff,
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EndThisInstance = 0x01,
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_,
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};
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pub const EndEntireDevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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};
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pub const EndThisInstanceDevicePath = packed struct {
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type: DevicePathType,
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subtype: Subtype,
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length: u16,
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};
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};
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