diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/std/os/uefi/tables/boot_services.zig | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/std/os/uefi/tables/boot_services.zig b/lib/std/os/uefi/tables/boot_services.zig index 468aaf4cf7..ee1e72f094 100644 --- a/lib/std/os/uefi/tables/boot_services.zig +++ b/lib/std/os/uefi/tables/boot_services.zig @@ -154,6 +154,27 @@ pub const BootServices = extern struct { /// Creates an event in a group. createEventEx: fn (type: u32, notify_tpl: usize, notify_func: EfiEventNotify, notify_ctx: *const anyopaque, event_group: *align(8) const Guid, event: *Event) callconv(.C) Status, + /// Opens a protocol with a structure as the loaded image for a UEFI application + pub fn openProtocolSt(self: *BootServices, comptime protocol: type, handle: Handle) !*protocol { + if (!@hasDecl(protocol, "guid")) + @compileError("Protocol is missing guid!"); + + var ptr: ?*protocol = undefined; + + try self.openProtocol( + handle, + &protocol.guid, + @ptrCast(*?*anyopaque, &ptr), + // Invoking handle (loaded image) + uefi.handle, + // Control handle (null as not a driver) + null, + uefi.tables.OpenProtocolAttributes{ .by_handle_protocol = true }, + ).err(); + + return ptr.?; + } + pub const signature: u64 = 0x56524553544f4f42; pub const event_timer: u32 = 0x80000000; |