1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162 |
- /* SPDX-License-Identifier: Intel */
- /*
- * Copyright (C) 2013, Intel Corporation
- * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
- */
- #ifndef __SIGNATURES_H__
- #define __SIGNATURES_H__
- /**
- * Returns a 16-bit signature built from 2 ASCII characters.
- *
- * This macro returns a 16-bit value built from the two ASCII characters
- * specified by A and B.
- *
- * @A: The first ASCII character.
- * @B: The second ASCII character.
- *
- * @return: A 16-bit value built from the two ASCII characters specified by
- * A and B.
- */
- #define SIGNATURE_16(A, B) ((A) | (B << 8))
- /**
- * Returns a 32-bit signature built from 4 ASCII characters.
- *
- * This macro returns a 32-bit value built from the four ASCII characters
- * specified by A, B, C, and D.
- *
- * @A: The first ASCII character.
- * @B: The second ASCII character.
- * @C: The third ASCII character.
- * @D: The fourth ASCII character.
- *
- * @return: A 32-bit value built from the two ASCII characters specified by
- * A, B, C and D.
- */
- #define SIGNATURE_32(A, B, C, D) \
- (SIGNATURE_16(A, B) | (SIGNATURE_16(C, D) << 16))
- /**
- * Returns a 64-bit signature built from 8 ASCII characters.
- *
- * This macro returns a 64-bit value built from the eight ASCII characters
- * specified by A, B, C, D, E, F, G,and H.
- *
- * @A: The first ASCII character.
- * @B: The second ASCII character.
- * @C: The third ASCII character.
- * @D: The fourth ASCII character.
- * @E: The fifth ASCII character.
- * @F: The sixth ASCII character.
- * @G: The seventh ASCII character.
- * @H: The eighth ASCII character.
- *
- * @return: A 64-bit value built from the two ASCII characters specified by
- * A, B, C, D, E, F, G and H.
- */
- #define SIGNATURE_64(A, B, C, D, E, F, G, H) \
- (SIGNATURE_32(A, B, C, D) | ((u64)(SIGNATURE_32(E, F, G, H)) << 32))
- #endif /* __SIGNATURES_H__ */
|