1 files changed, 153 insertions, 0 deletions
diff --git a/arch/x86/include/asm/fsp1/fsp_ffs.h b/arch/x86/include/asm/fsp1/fsp_ffs.h
new file mode 100644
index 0000000..b7558e5
--- /dev/null
+++ b/arch/x86/include/asm/fsp1/fsp_ffs.h
@@ -0,0 +1,153 @@
+/* SPDX-License-Identifier: Intel */
+/*
+ * Copyright (C) 2013, Intel Corporation
+ * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
+ */
+
+#ifndef __FSP_FFS_H__
+#define __FSP_FFS_H__
+
+/* Used to verify the integrity of the file */
+union __packed ffs_integrity {
+	struct {
+		/*
+		 * The IntegrityCheck.checksum.header field is an 8-bit
+		 * checksum of the file header. The State and
+		 * IntegrityCheck.checksum.file fields are assumed to be zero
+		 * and the checksum is calculated such that the entire header
+		 * sums to zero.
+		 */
+		u8	header;
+		/*
+		 * If the FFS_ATTRIB_CHECKSUM (see definition below) bit of
+		 * the Attributes field is set to one, the
+		 * IntegrityCheck.checksum.file field is an 8-bit checksum of
+		 * the file data. If the FFS_ATTRIB_CHECKSUM bit of the
+		 * Attributes field is cleared to zero, the
+		 * IntegrityCheck.checksum.file field must be initialized with
+		 * a value of 0xAA. The IntegrityCheck.checksum.file field is
+		 * valid any time the EFI_FILE_DATA_VALID bit is set in the
+		 * State field.
+		 */
+		u8	file;
+	} checksum;
+
+	/* This is the full 16 bits of the IntegrityCheck field */
+	u16	checksum16;
+};
+
+/*
+ * Each file begins with the header that describe the
+ * contents and state of the files.
+ */
+struct __packed ffs_file_header {
+	/*
+	 * This GUID is the file name.
+	 * It is used to uniquely identify the file.
+	 */
+	efi_guid_t		name;
+	/* Used to verify the integrity of the file */
+	union ffs_integrity	integrity;
+	/* Identifies the type of file */
+	u8			type;
+	/* Declares various file attribute bits */
+	u8			attr;
+	/* The length of the file in bytes, including the FFS header */
+	u8			size[3];
+	/*
+	 * Used to track the state of the file throughout the life of
+	 * the file from creation to deletion.
+	 */
+	u8			state;
+};
+
+struct __packed ffs_file_header2 {
+	/*
+	 * This GUID is the file name. It is used to uniquely identify the file.
+	 * There may be only one instance of a file with the file name GUID of
+	 * Name in any given firmware volume, except if the file type is
+	 * EFI_FV_FILE_TYPE_FFS_PAD.
+	 */
+	efi_guid_t		name;
+	/* Used to verify the integrity of the file */
+	union ffs_integrity	integrity;
+	/* Identifies the type of file */
+	u8			type;
+	/* Declares various file attribute bits */
+	u8			attr;
+	/*
+	 * The length of the file in bytes, including the FFS header.
+	 * The length of the file data is either
+	 * (size - sizeof(struct ffs_file_header)). This calculation means a
+	 * zero-length file has a size of 24 bytes, which is
+	 * sizeof(struct ffs_file_header). Size is not required to be a
+	 * multiple of 8 bytes. Given a file F, the next file header is located
+	 * at the next 8-byte aligned firmware volume offset following the last
+	 * byte of the file F.
+	 */
+	u8			size[3];
+	/*
+	 * Used to track the state of the file throughout the life of
+	 * the file from creation to deletion.
+	 */
+	u8			state;
+	/*
+	 * If FFS_ATTRIB_LARGE_FILE is set in attr, then ext_size exists
+	 * and size must be set to zero.
+	 * If FFS_ATTRIB_LARGE_FILE is not set then
+	 * struct ffs_file_header is used.
+	 */
+	u32			ext_size;
+};
+
+/*
+ * Pseudo type. It is used as a wild card when retrieving sections.
+ * The section type EFI_SECTION_ALL matches all section types.
+ */
+#define EFI_SECTION_ALL				0x00
+
+/* Encapsulation section Type values */
+#define EFI_SECTION_COMPRESSION			0x01
+#define EFI_SECTION_GUID_DEFINED		0x02
+#define EFI_SECTION_DISPOSABLE			0x03
+
+/* Leaf section Type values */
+#define EFI_SECTION_PE32			0x10
+#define EFI_SECTION_PIC				0x11
+#define EFI_SECTION_TE				0x12
+#define EFI_SECTION_DXE_DEPEX			0x13
+#define EFI_SECTION_VERSION			0x14
+#define EFI_SECTION_USER_INTERFACE		0x15
+#define EFI_SECTION_COMPATIBILITY16		0x16
+#define EFI_SECTION_FIRMWARE_VOLUME_IMAGE	0x17
+#define EFI_SECTION_FREEFORM_SUBTYPE_GUID	0x18
+#define EFI_SECTION_RAW				0x19
+#define EFI_SECTION_PEI_DEPEX			0x1B
+#define EFI_SECTION_SMM_DEPEX			0x1C
+
+/* Common section header */
+struct __packed raw_section {
+	/*
+	 * A 24-bit unsigned integer that contains the total size of
+	 * the section in bytes, including the EFI_COMMON_SECTION_HEADER.
+	 */
+	u8	size[3];
+	u8	type;
+};
+
+struct __packed raw_section2 {
+	/*
+	 * A 24-bit unsigned integer that contains the total size of
+	 * the section in bytes, including the EFI_COMMON_SECTION_HEADER.
+	 */
+	u8	size[3];
+	u8	type;
+	/*
+	 * If size is 0xFFFFFF, then ext_size contains the size of
+	 * the section. If size is not equal to 0xFFFFFF, then this
+	 * field does not exist.
+	 */
+	u32	ext_size;
+};
+
+#endif