1 /* 2 * Copyright (C) 2013, Intel Corporation 3 * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com> 4 * 5 * SPDX-License-Identifier: Intel 6 */ 7 8 #ifndef __FSP_TYPES_H__ 9 #define __FSP_TYPES_H__ 10 11 /* 128 bit buffer containing a unique identifier value */ 12 struct efi_guid { 13 u32 data1; 14 u16 data2; 15 u16 data3; 16 u8 data4[8]; 17 }; 18 19 /** 20 * Returns a 16-bit signature built from 2 ASCII characters. 21 * 22 * This macro returns a 16-bit value built from the two ASCII characters 23 * specified by A and B. 24 * 25 * @A: The first ASCII character. 26 * @B: The second ASCII character. 27 * 28 * @return: A 16-bit value built from the two ASCII characters specified by 29 * A and B. 30 */ 31 #define SIGNATURE_16(A, B) ((A) | (B << 8)) 32 33 /** 34 * Returns a 32-bit signature built from 4 ASCII characters. 35 * 36 * This macro returns a 32-bit value built from the four ASCII characters 37 * specified by A, B, C, and D. 38 * 39 * @A: The first ASCII character. 40 * @B: The second ASCII character. 41 * @C: The third ASCII character. 42 * @D: The fourth ASCII character. 43 * 44 * @return: A 32-bit value built from the two ASCII characters specified by 45 * A, B, C and D. 46 */ 47 #define SIGNATURE_32(A, B, C, D) \ 48 (SIGNATURE_16(A, B) | (SIGNATURE_16(C, D) << 16)) 49 50 /** 51 * Returns a 64-bit signature built from 8 ASCII characters. 52 * 53 * This macro returns a 64-bit value built from the eight ASCII characters 54 * specified by A, B, C, D, E, F, G,and H. 55 * 56 * @A: The first ASCII character. 57 * @B: The second ASCII character. 58 * @C: The third ASCII character. 59 * @D: The fourth ASCII character. 60 * @E: The fifth ASCII character. 61 * @F: The sixth ASCII character. 62 * @G: The seventh ASCII character. 63 * @H: The eighth ASCII character. 64 * 65 * @return: A 64-bit value built from the two ASCII characters specified by 66 * A, B, C, D, E, F, G and H. 67 */ 68 #define SIGNATURE_64(A, B, C, D, E, F, G, H) \ 69 (SIGNATURE_32(A, B, C, D) | ((u64)(SIGNATURE_32(E, F, G, H)) << 32)) 70 71 #endif 72