include/linux/efi_embedded_fw.h

   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