svn commit: r261852 - in projects/arm64/sys/boot/efi: include libefi

[Andrew Turner]

Author: andrew
Date: Thu Feb 13 20:36:15 2014
New Revision: 261852
URL: http://svnweb.freebsd.org/changeset/base/261852

Log:
  Add efi_handle_any to allow us to get a 'current' device when we lack a
  driver for the boot device, e.g. when loading the loader over semihosting.

Modified:
  projects/arm64/sys/boot/efi/include/efilib.h
  projects/arm64/sys/boot/efi/libefi/handles.c

Modified: projects/arm64/sys/boot/efi/include/efilib.h
==============================================================================
--- projects/arm64/sys/boot/efi/include/efilib.h	Thu Feb 13 20:25:25 2014	(r261851)
+++ projects/arm64/sys/boot/efi/include/efilib.h	Thu Feb 13 20:36:15 2014	(r261852)
@@ -44,6 +44,7 @@ void efi_main(EFI_HANDLE image_handle, E
 int efi_register_handles(struct devsw *, EFI_HANDLE *, int);
 EFI_HANDLE efi_find_handle(struct devsw *, int);
 int efi_handle_lookup(EFI_HANDLE, struct devsw **, int *);
+int efi_handle_any(struct devsw **dev, int *unit);
 
 int efi_status_to_errno(EFI_STATUS);
 time_t efi_time(EFI_TIME *);

Modified: projects/arm64/sys/boot/efi/libefi/handles.c
==============================================================================
--- projects/arm64/sys/boot/efi/libefi/handles.c	Thu Feb 13 20:25:25 2014	(r261851)
+++ projects/arm64/sys/boot/efi/libefi/handles.c	Thu Feb 13 20:36:15 2014	(r261852)
@@ -88,3 +88,15 @@ efi_handle_lookup(EFI_HANDLE h, struct d
 	}
 	return (ENOENT);
 }
+
+int
+efi_handle_any(struct devsw **dev, int *unit)
+{
+	if (nentries == 0)
+		return (ENOENT);
+	if (dev != NULL)
+		*dev = entry[0].dev;
+	if (unit != NULL)
+		*unit = entry[0].unit;
+	return (0);
+}