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| author | Manish V Badarkhe <Manish.Badarkhe@arm.com> | 2021-07-02 20:18:57 +0100 |
|---|---|---|
| committer | Manish V Badarkhe <Manish.Badarkhe@arm.com> | 2021-08-02 17:15:41 +0100 |
| commit | f21693704a7bac275e12b44ae30fd210bc317175 (patch) | |
| tree | 56e0c18861d3c8c3aa5967431ca582c3a8da622c /lib/zlib | |
| parent | c885d5c84d94cd82a80e074b2d6e6b5c04796cde (diff) | |
| download | arm-trusted-firmware-f21693704a7bac275e12b44ae30fd210bc317175.tar.gz | |
feat(sw_crc32): add software CRC32 support
Added software CRC32 support in case platform doesn't support
hardware CRC32.
Platform must include necessary Zlib source files for compilation
to use software CRC32 implementation.
Change-Id: Iecb649b2edf951944b1a7e4c250c40fe7a3bde25
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
Diffstat (limited to 'lib/zlib')
| -rw-r--r-- | lib/zlib/tf_gunzip.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/lib/zlib/tf_gunzip.c b/lib/zlib/tf_gunzip.c index fd56dfc7c..3ac80bc5b 100644 --- a/lib/zlib/tf_gunzip.c +++ b/lib/zlib/tf_gunzip.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2018-2021, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ @@ -9,6 +9,7 @@ #include <string.h> #include <common/debug.h> +#include <common/tf_crc32.h> #include <lib/utils.h> #include <tf_gunzip.h> @@ -100,3 +101,15 @@ int gunzip(uintptr_t *in_buf, size_t in_len, uintptr_t *out_buf, return ret; } + +/* Wrapper function to calculate CRC + * @crc: previous accumulated CRC + * @buf: buffer base address + * @size: size of the buffer + * + * Return calculated CRC32 value + */ +uint32_t tf_crc32(uint32_t crc, const unsigned char *buf, size_t size) +{ + return (uint32_t)crc32((unsigned long)crc, buf, size); +} |