1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _LINUX_EFI_EMBEDDED_FW_H 3 #define _LINUX_EFI_EMBEDDED_FW_H 4 5 #include <linux/list.h> 6 #include <linux/mod_devicetable.h> 7 8 #define EFI_EMBEDDED_FW_PREFIX_LEN 8 9 10 /* 11 * This struct is private to the efi-embedded fw implementation. 12 * They are in this header for use by lib/test_firmware.c only! 13 */ 14 struct efi_embedded_fw { 15 struct list_head list; 16 const char *name; 17 const u8 *data; 18 size_t length; 19 }; 20 21 /** 22 * struct efi_embedded_fw_desc - This struct is used by the EFI embedded-fw 23 * code to search for embedded firmwares. 24 * 25 * @name: Name to register the firmware with if found 26 * @prefix: First 8 bytes of the firmware 27 * @length: Length of the firmware in bytes including prefix 28 * @sha256: SHA256 of the firmware 29 */ 30 struct efi_embedded_fw_desc { 31 const char *name; 32 u8 prefix[EFI_EMBEDDED_FW_PREFIX_LEN]; 33 u32 length; 34 u8 sha256[32]; 35 }; 36 37 extern const struct dmi_system_id touchscreen_dmi_table[]; 38 39 int efi_get_embedded_fw(const char *name, const u8 **dat, size_t *sz); 40 41 #endif 42