Merge tag 'efi-2019-10-rc4-4' of https://gitlab.denx.de/u-boot/custodians/u-boot-efi

Pull request for UEFI sub-system for v2019.10-rc4 (4)

Fixes for the EFI_FILE_PROTOCOL:

* correctly iterate over directories
* correct Unicode conversion of file names
* parameter checks

2 files changed, 20 insertions, 20 deletions

diff --git a/include/efi_api.h b/include/efi_api.h
index cb895f31e5..37e56da460 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -1461,6 +1461,12 @@ struct efi_pxe_base_code_protocol {
 #define EFI_FILE_PROTOCOL_REVISION2	0x00020000
 #define EFI_FILE_PROTOCOL_LATEST_REVISION EFI_FILE_PROTOCOL_REVISION2
 
+struct efi_file_io_token {
+	struct efi_event *event;
+	efi_status_t status;
+	efi_uintn_t buffer_size;
+	void *buffer;};
+
 struct efi_file_handle {
 	u64 rev;
 	efi_status_t (EFIAPI *open)(struct efi_file_handle *file,
@@ -1483,10 +1489,16 @@ struct efi_file_handle {
 			const efi_guid_t *info_type, efi_uintn_t buffer_size,
 			void *buffer);
 	efi_status_t (EFIAPI *flush)(struct efi_file_handle *file);
-	/*
-	 * TODO: We currently only support EFI file protocol revision 0x00010000
-	 *	 while UEFI specs 2.4 - 2.7 prescribe revision 0x00020000.
-	 */
+	efi_status_t (EFIAPI *open_ex)(struct efi_file_handle *file,
+			struct efi_file_handle **new_handle,
+			u16 *file_name, u64 open_mode, u64 attributes,
+			struct efi_file_io_token *token);
+	efi_status_t (EFIAPI *read_ex)(struct efi_file_handle *file,
+			struct efi_file_io_token *token);
+	efi_status_t (EFIAPI *write_ex)(struct efi_file_handle *file,
+			struct efi_file_io_token *token);
+	efi_status_t (EFIAPI *flush_ex)(struct efi_file_handle *file,
+			struct efi_file_io_token *token);
 };
 
 #define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION 0x00010000
@@ -1505,6 +1517,10 @@ struct efi_simple_file_system_protocol {
 	EFI_GUID(0x09576e93, 0x6d3f, 0x11d2, \
 		 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
 
+#define EFI_FILE_SYSTEM_VOLUME_LABEL_ID \
+	EFI_GUID(0xdb47d7d3, 0xfe81, 0x11d3, \
+		 0x9a, 0x35, 0x00, 0x90, 0x27, 0x3f, 0xC1, 0x4d)
+
 #define EFI_FILE_MODE_READ	0x0000000000000001
 #define EFI_FILE_MODE_WRITE	0x0000000000000002
 #define EFI_FILE_MODE_CREATE	0x8000000000000000
diff --git a/include/efi_loader.h b/include/efi_loader.h
index 00eba8afa4..dd24a2746c 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -555,22 +555,6 @@ efi_status_t efi_dp_from_name(const char *dev, const char *devnr,
 	(((_dp)->type == DEVICE_PATH_TYPE_##_type) && \
 	 ((_dp)->sub_type == DEVICE_PATH_SUB_TYPE_##_subtype))
 
-/**
- * ascii2unicode() - convert ASCII string to UTF-16 string
- *
- * A zero terminated ASCII string is converted to a zero terminated UTF-16
- * string. The output buffer must be preassigned.
- *
- * @unicode:	preassigned output buffer for UTF-16 string
- * @ascii:	ASCII string to be converted
- */
-static inline void ascii2unicode(u16 *unicode, const char *ascii)
-{
-	while (*ascii)
-		*(unicode++) = *(ascii++);
-	*unicode = 0;
-}
-
 static inline int guidcmp(const void *g1, const void *g2)
 {
 	return memcmp(g1, g2, sizeof(efi_guid_t));