1 files changed, 142 insertions, 0 deletions
diff --git a/src/include/ipxe/efi/efi.h b/src/include/ipxe/efi/efi.h
new file mode 100644
index 000000000..4acbc242f
--- /dev/null
+++ b/src/include/ipxe/efi/efi.h
@@ -0,0 +1,142 @@
+#ifndef _EFI_H
+#define _EFI_H
+
+/** @file
+ *
+ * EFI API
+ *
+ * The intention is to include near-verbatim copies of the EFI headers
+ * required by iPXE.  This is achieved using the import.pl script in
+ * this directory.  Run the import script to update the local copies
+ * of the headers:
+ *
+ *     ./import.pl /path/to/edk2/edk2
+ *
+ * where /path/to/edk2/edk2 is the path to your local checkout of the
+ * EFI Development Kit.
+ *
+ * Note that import.pl will modify any #include lines in each imported
+ * header to reflect its new location within the iPXE tree.  It will
+ * also tidy up the file by removing carriage return characters and
+ * trailing whitespace.
+ *
+ *
+ * At the time of writing, there are a few other modifications to
+ * these headers that are present in my personal edk2 tree, that are
+ * not yet committed back to the main edk2 repository.  These
+ * modifications are fixes for compilation on case-dependent
+ * filesystems, compilation under -mrtd and -mregparm=3, etc.
+ */
+
+/* EFI headers rudely redefine NULL */
+#undef NULL
+
+/* EFI headers expect ICC to define __GNUC__ */
+#if defined ( __ICC ) && ! defined ( __GNUC__ )
+#define __GNUC__ 1
+#endif
+
+/* Include the top-level EFI header files */
+#include <ipxe/efi/Uefi.h>
+#include <ipxe/efi/PiDxe.h>
+
+/* Reset any trailing #pragma pack directives */
+#pragma pack(1)
+#pragma pack()
+
+#include <ipxe/tables.h>
+#include <ipxe/uuid.h>
+
+/** An EFI protocol used by iPXE */
+struct efi_protocol {
+	/** GUID */
+	union {
+		/** EFI protocol GUID */
+		EFI_GUID guid;
+		/** UUID structure understood by iPXE */
+		union uuid uuid;
+	} u;
+	/** Variable containing pointer to protocol structure */
+	void **protocol;
+};
+
+/** EFI protocol table */
+#define EFI_PROTOCOLS __table ( struct efi_protocol, "efi_protocols" )
+
+/** Declare an EFI protocol used by iPXE */
+#define __efi_protocol __table_entry ( EFI_PROTOCOLS, 01 )
+
+/** Declare an EFI protocol to be required by iPXE
+ *
+ * @v _protocol		EFI protocol name
+ * @v _ptr		Pointer to protocol instance
+ */
+#define EFI_REQUIRE_PROTOCOL( _protocol, _ptr )				     \
+	struct efi_protocol __ ## _protocol __efi_protocol = {		     \
+		.u.guid = _protocol ## _GUID,				     \
+		.protocol = ( ( void ** ) ( void * )			     \
+			      ( ( (_ptr) == ( ( _protocol ** ) (_ptr) ) ) ?  \
+				(_ptr) : (_ptr) ) ),			     \
+	}
+
+/** An EFI configuration table used by iPXE */
+struct efi_config_table {
+	/** GUID */
+	union {
+		/** EFI configuration table GUID */
+		EFI_GUID guid;
+		/** UUID structure understood by iPXE */
+		union uuid uuid;
+	} u;
+	/** Variable containing pointer to configuration table */
+	void **table;
+	/** Table is required for operation */
+	int required;
+};
+
+/** EFI configuration table table */
+#define EFI_CONFIG_TABLES \
+	__table ( struct efi_config_table, "efi_config_tables" )
+
+/** Declare an EFI configuration table used by iPXE */
+#define __efi_config_table __table_entry ( EFI_CONFIG_TABLES, 01 )
+
+/** Declare an EFI configuration table to be used by iPXE
+ *
+ * @v _table		EFI configuration table name
+ * @v _ptr		Pointer to configuration table
+ * @v _required		Table is required for operation
+ */
+#define EFI_USE_TABLE( _table, _ptr, _required )			     \
+	struct efi_config_table __ ## _table __efi_config_table = {	     \
+		.u.guid = _table ## _GUID,				     \
+		.table = ( ( void ** ) ( void * ) (_ptr) ),		     \
+		.required = (_required),				     \
+	}
+
+/** Convert a iPXE status code to an EFI status code
+ *
+ * FIXME: actually perform some kind of conversion.  iPXE error codes
+ * will be detected as EFI error codes; both have the top bit set, and
+ * the success return code is zero for both.  Anything that just
+ * reports a numerical error will be OK, anything attempting to
+ * interpret the value or to display a text equivalent will be
+ * screwed.
+ */
+#define RC_TO_EFIRC( rc ) (rc)
+
+/** Convert an EFI status code to a iPXE status code
+ *
+ * FIXME: as above
+ */
+#define EFIRC_TO_RC( efirc ) (efirc)
+
+extern EFI_HANDLE efi_image_handle;
+extern EFI_SYSTEM_TABLE *efi_systab;
+
+extern const char * efi_strerror ( EFI_STATUS efirc );
+extern EFI_STATUS efi_init ( EFI_HANDLE image_handle,
+			     EFI_SYSTEM_TABLE *systab );
+extern int efi_snp_install ( void );
+
+#endif /* _EFI_H */