Lines Matching +full:4 +full:- +full:bits

1 // SPDX-License-Identifier: GPL-2.0-only
3  * crc4.c - simple crc-4 calculations.
15  * crc4 - calculate the 4-bit crc of a value.
18  * @bits: number of bits in @x to checksum
22  * The @x value is treated as left-aligned, and bits above @bits are ignored
25 uint8_t crc4(uint8_t c, uint64_t x, int bits)  in crc4()  argument
30 	x &= (1ull << bits) - 1;  in crc4()
32 	/* Align to 4-bits */  in crc4()
33 	bits = (bits + 3) & ~0x3;  in crc4()
35 	/* Calculate crc4 over four-bit nibbles, starting at the MSbit */  in crc4()
36 	for (i = bits - 4; i >= 0; i -= 4)  in crc4()