From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-vk1-f172.google.com (mail-vk1-f172.google.com [209.85.221.172]) by mx.groups.io with SMTP id smtpd.web08.2.1652291024408535905 for ; Wed, 11 May 2022 10:43:44 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@gmail.com header.s=20210112 header.b=owXNLf2A; spf=pass (domain: gmail.com, ip: 209.85.221.172, mailfrom: pedro.falcato@gmail.com) Received: by mail-vk1-f172.google.com with SMTP id o132so1502517vko.11 for ; Wed, 11 May 2022 10:43:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=LxaDIcXF32Y6U4p8KWwztNqI2X1W9KOdckVS9MWCYYU=; b=owXNLf2AobU0EGTDaLx8L/pIl/ibWccPyweUI9Lh+sh6GulARaAIqisPZUg/fQHl1x T/h+Z+Znbxnw9hytlwLZ4dRfq8E8EgHMmHYBL9+6R6YLqWBi7h7WdHeS53NdP8LaUeSm jBu0aWpducHahjHxI1tNP1enF0eVfB4/FExn9yaYJtQ3nFUw8i9w15XAiKVp15zCnLr3 0tez3sQyQ3YRo2r6nWA17GZ8iV4e73VRQPlTlZhbdlw3plYzqZRBzvJs4JTSloU4pGn5 ITG7QauNDEx9sUDgffRHqOpPPMV7O9rJHB7+1yxKQ7WpWggGuzpzcP2aRw3Apv6rnnly 1V2g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=LxaDIcXF32Y6U4p8KWwztNqI2X1W9KOdckVS9MWCYYU=; b=ZK8b3mWKueKstzFM/ED0YC5UcVJfgHXkElmAsk6Y0BZeCirV2ZNhgfs/dwqV1sfZ3u HL9lEwIjVWqqEUO7fo75eOrXcZeuXaFqGe6WmqlrPjp2Vr1QiHxcYREYLjvnYxB6FHQn aMvkh5oaordl1SWClPG8JP8bQvvF5hgEl2c9y4yEMDsg8XJGfLkn9eZloStw2qCbPqgw 8s3ouMr0gHgL7Vu04jxZbPKfyJaz4NtbUuB36m9UEwESA/DdZgVaEYSu0hCd8A9cdKng in31SepaVMf2dnzv7M0O47t5m4i7vpikJG1J9afdnp9OO4GEw3TMwnfPrTM2ZQOk+51q paZg== X-Gm-Message-State: AOAM531u5/ag32RlIp7W5sraxeW3hy6S80AH8uBgxfroF11goPkKf4kR IGJhtvu/trMk2bWDSf01/PqVELr7E4eT63msrMopUCiI X-Google-Smtp-Source: ABdhPJzAII0EbtAeCYMLlKcrfLuofKhQWsZjIXZJva6P6q54jukpMNYFI0vpe9NCm6lokjwTwDpd/IOvNhIIWnglxv8= X-Received: by 2002:a1f:3451:0:b0:352:8b1f:5d11 with SMTP id b78-20020a1f3451000000b003528b1f5d11mr14083817vka.20.1652291023297; Wed, 11 May 2022 10:43:43 -0700 (PDT) MIME-Version: 1.0 References: <20220407220200.149601-1-pedro.falcato@gmail.com> <16E9330567E0FB44.27774@groups.io> In-Reply-To: <16E9330567E0FB44.27774@groups.io> From: "Pedro Falcato" Date: Wed, 11 May 2022 18:43:32 +0100 Message-ID: Subject: Re: [edk2-devel] [PATCH 1/1] MdePkg/BaseLib: Add CRC16-ANSI and CRC32c implementations To: edk2-devel-groups-io , Pedro Falcato Cc: Michael D Kinney , Liming Gao , Zhiguang Liu Content-Type: multipart/alternative; boundary="000000000000825f7005debffbf3" --000000000000825f7005debffbf3 Content-Type: text/plain; charset="UTF-8" Ping. Could someone review it? On Mon, Apr 25, 2022 at 6:13 PM Pedro Falcato via groups.io wrote: > Ping. If someone could take a look, it would be much appreciated. > > On Thu, Apr 7, 2022 at 11:02 PM Pedro Falcato > wrote: > >> BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3871 >> >> Add the CRC16-ANSI and CRC32C implementations previously found at >> Features/Ext4Pkg/Ext4Dxe/Crc{16,32c}.c to BaseLib. >> >> Cc: Michael D Kinney >> Cc: Liming Gao >> Cc: Zhiguang Liu >> >> Signed-off-by: Pedro Falcato >> --- >> MdePkg/Include/Library/BaseLib.h | 35 +++++++- >> MdePkg/Library/BaseLib/CheckSum.c | 144 ++++++++++++++++++++++++++++++ >> 2 files changed, 178 insertions(+), 1 deletion(-) >> >> diff --git a/MdePkg/Include/Library/BaseLib.h >> b/MdePkg/Include/Library/BaseLib.h >> index 6aa0d972186e..f365de9f74a0 100644 >> --- a/MdePkg/Include/Library/BaseLib.h >> +++ b/MdePkg/Include/Library/BaseLib.h >> @@ -4503,6 +4503,40 @@ CalculateCrc32 ( >> IN UINTN Length >> ); >> >> +/** >> + Calculates the CRC16-ANSI checksum of the given buffer. >> + >> + @param[in] Buffer Pointer to the buffer. >> + @param[in] Length Length of the buffer, in bytes. >> + @param[in] InitialValue Initial value of the CRC. >> + >> + @return The CRC16-ANSI checksum. >> +**/ >> +UINT16 >> +EFIAPI >> +CalculateCrc16Ansi ( >> + IN CONST VOID *Buffer, >> + IN UINTN Length, >> + IN UINT16 InitialValue >> + ); >> + >> +/** >> + Calculates the CRC32c checksum of the given buffer. >> + >> + @param[in] Buffer Pointer to the buffer. >> + @param[in] Length Length of the buffer, in bytes. >> + @param[in] InitialValue Initial value of the CRC. >> + >> + @return The CRC32c checksum. >> +**/ >> +UINT32 >> +EFIAPI >> +CalculateCrc32c ( >> + IN CONST VOID *Buffer, >> + IN UINTN Length, >> + IN UINT32 InitialValue >> + ); >> + >> // >> // Base Library CPU Functions >> // >> @@ -4512,7 +4546,6 @@ CalculateCrc32 ( >> >> @param Context1 Context1 parameter passed into SwitchStack(). >> @param Context2 Context2 parameter passed into SwitchStack(). >> - >> **/ >> typedef >> VOID >> diff --git a/MdePkg/Library/BaseLib/CheckSum.c >> b/MdePkg/Library/BaseLib/CheckSum.c >> index 28dee5ac6a15..b6a076573191 100644 >> --- a/MdePkg/Library/BaseLib/CheckSum.c >> +++ b/MdePkg/Library/BaseLib/CheckSum.c >> @@ -3,6 +3,7 @@ >> algorithm. >> >> Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.
>> + Copyright (c) 2022, Pedro Falcato. All rights reserved.
>> SPDX-License-Identifier: BSD-2-Clause-Patent >> >> **/ >> @@ -618,3 +619,146 @@ CalculateCrc32 ( >> >> return Crc ^ 0xffffffff; >> } >> + >> +GLOBAL_REMOVE_IF_UNREFERENCED STATIC CONST UINT16 >> mCrc16LookupTable[256] = >> +{ >> + 0x0000, 0xC0C1, 0xC181, 0x0140, 0xC301, 0x03C0, 0x0280, 0xC241, >> + 0xC601, 0x06C0, 0x0780, 0xC741, 0x0500, 0xC5C1, 0xC481, 0x0440, >> + 0xCC01, 0x0CC0, 0x0D80, 0xCD41, 0x0F00, 0xCFC1, 0xCE81, 0x0E40, >> + 0x0A00, 0xCAC1, 0xCB81, 0x0B40, 0xC901, 0x09C0, 0x0880, 0xC841, >> + 0xD801, 0x18C0, 0x1980, 0xD941, 0x1B00, 0xDBC1, 0xDA81, 0x1A40, >> + 0x1E00, 0xDEC1, 0xDF81, 0x1F40, 0xDD01, 0x1DC0, 0x1C80, 0xDC41, >> + 0x1400, 0xD4C1, 0xD581, 0x1540, 0xD701, 0x17C0, 0x1680, 0xD641, >> + 0xD201, 0x12C0, 0x1380, 0xD341, 0x1100, 0xD1C1, 0xD081, 0x1040, >> + 0xF001, 0x30C0, 0x3180, 0xF141, 0x3300, 0xF3C1, 0xF281, 0x3240, >> + 0x3600, 0xF6C1, 0xF781, 0x3740, 0xF501, 0x35C0, 0x3480, 0xF441, >> + 0x3C00, 0xFCC1, 0xFD81, 0x3D40, 0xFF01, 0x3FC0, 0x3E80, 0xFE41, >> + 0xFA01, 0x3AC0, 0x3B80, 0xFB41, 0x3900, 0xF9C1, 0xF881, 0x3840, >> + 0x2800, 0xE8C1, 0xE981, 0x2940, 0xEB01, 0x2BC0, 0x2A80, 0xEA41, >> + 0xEE01, 0x2EC0, 0x2F80, 0xEF41, 0x2D00, 0xEDC1, 0xEC81, 0x2C40, >> + 0xE401, 0x24C0, 0x2580, 0xE541, 0x2700, 0xE7C1, 0xE681, 0x2640, >> + 0x2200, 0xE2C1, 0xE381, 0x2340, 0xE101, 0x21C0, 0x2080, 0xE041, >> + 0xA001, 0x60C0, 0x6180, 0xA141, 0x6300, 0xA3C1, 0xA281, 0x6240, >> + 0x6600, 0xA6C1, 0xA781, 0x6740, 0xA501, 0x65C0, 0x6480, 0xA441, >> + 0x6C00, 0xACC1, 0xAD81, 0x6D40, 0xAF01, 0x6FC0, 0x6E80, 0xAE41, >> + 0xAA01, 0x6AC0, 0x6B80, 0xAB41, 0x6900, 0xA9C1, 0xA881, 0x6840, >> + 0x7800, 0xB8C1, 0xB981, 0x7940, 0xBB01, 0x7BC0, 0x7A80, 0xBA41, >> + 0xBE01, 0x7EC0, 0x7F80, 0xBF41, 0x7D00, 0xBDC1, 0xBC81, 0x7C40, >> + 0xB401, 0x74C0, 0x7580, 0xB541, 0x7700, 0xB7C1, 0xB681, 0x7640, >> + 0x7200, 0xB2C1, 0xB381, 0x7340, 0xB101, 0x71C0, 0x7080, 0xB041, >> + 0x5000, 0x90C1, 0x9181, 0x5140, 0x9301, 0x53C0, 0x5280, 0x9241, >> + 0x9601, 0x56C0, 0x5780, 0x9741, 0x5500, 0x95C1, 0x9481, 0x5440, >> + 0x9C01, 0x5CC0, 0x5D80, 0x9D41, 0x5F00, 0x9FC1, 0x9E81, 0x5E40, >> + 0x5A00, 0x9AC1, 0x9B81, 0x5B40, 0x9901, 0x59C0, 0x5880, 0x9841, >> + 0x8801, 0x48C0, 0x4980, 0x8941, 0x4B00, 0x8BC1, 0x8A81, 0x4A40, >> + 0x4E00, 0x8EC1, 0x8F81, 0x4F40, 0x8D01, 0x4DC0, 0x4C80, 0x8C41, >> + 0x4400, 0x84C1, 0x8581, 0x4540, 0x8701, 0x47C0, 0x4680, 0x8641, >> + 0x8201, 0x42C0, 0x4380, 0x8341, 0x4100, 0x81C1, 0x8081, 0x4040 >> +}; >> + >> +/** >> + Calculates the CRC16-ANSI checksum of the given buffer. >> + >> + @param[in] Buffer Pointer to the buffer. >> + @param[in] Length Length of the buffer, in bytes. >> + @param[in] InitialValue Initial value of the CRC. >> + >> + @return The CRC16-ANSI checksum. >> +**/ >> +UINT16 >> +EFIAPI >> +CalculateCrc16Ansi ( >> + IN CONST VOID *Buffer, >> + IN UINTN Length, >> + IN UINT16 InitialValue >> + ) >> +{ >> + CONST UINT8 *Buf; >> + UINT16 Crc; >> + >> + Buf = Buffer; >> + >> + Crc = ~InitialValue; >> + >> + while (Length-- != 0) { >> + Crc = mCrc16LookupTable[(Crc & 0xFF) ^ *(Buf++)] ^ (Crc >> 8); >> + } >> + >> + return ~Crc; >> +} >> + >> +GLOBAL_REMOVE_IF_UNREFERENCED STATIC CONST UINT32 >> mCrc32cLookupTable[256] = { >> + 0x00000000, 0xf26b8303, 0xe13b70f7, 0x1350f3f4, 0xc79a971f, 0x35f1141c, >> + 0x26a1e7e8, 0xd4ca64eb, 0x8ad958cf, 0x78b2dbcc, 0x6be22838, 0x9989ab3b, >> + 0x4d43cfd0, 0xbf284cd3, 0xac78bf27, 0x5e133c24, 0x105ec76f, 0xe235446c, >> + 0xf165b798, 0x030e349b, 0xd7c45070, 0x25afd373, 0x36ff2087, 0xc494a384, >> + 0x9a879fa0, 0x68ec1ca3, 0x7bbcef57, 0x89d76c54, 0x5d1d08bf, 0xaf768bbc, >> + 0xbc267848, 0x4e4dfb4b, 0x20bd8ede, 0xd2d60ddd, 0xc186fe29, 0x33ed7d2a, >> + 0xe72719c1, 0x154c9ac2, 0x061c6936, 0xf477ea35, 0xaa64d611, 0x580f5512, >> + 0x4b5fa6e6, 0xb93425e5, 0x6dfe410e, 0x9f95c20d, 0x8cc531f9, 0x7eaeb2fa, >> + 0x30e349b1, 0xc288cab2, 0xd1d83946, 0x23b3ba45, 0xf779deae, 0x05125dad, >> + 0x1642ae59, 0xe4292d5a, 0xba3a117e, 0x4851927d, 0x5b016189, 0xa96ae28a, >> + 0x7da08661, 0x8fcb0562, 0x9c9bf696, 0x6ef07595, 0x417b1dbc, 0xb3109ebf, >> + 0xa0406d4b, 0x522bee48, 0x86e18aa3, 0x748a09a0, 0x67dafa54, 0x95b17957, >> + 0xcba24573, 0x39c9c670, 0x2a993584, 0xd8f2b687, 0x0c38d26c, 0xfe53516f, >> + 0xed03a29b, 0x1f682198, 0x5125dad3, 0xa34e59d0, 0xb01eaa24, 0x42752927, >> + 0x96bf4dcc, 0x64d4cecf, 0x77843d3b, 0x85efbe38, 0xdbfc821c, 0x2997011f, >> + 0x3ac7f2eb, 0xc8ac71e8, 0x1c661503, 0xee0d9600, 0xfd5d65f4, 0x0f36e6f7, >> + 0x61c69362, 0x93ad1061, 0x80fde395, 0x72966096, 0xa65c047d, 0x5437877e, >> + 0x4767748a, 0xb50cf789, 0xeb1fcbad, 0x197448ae, 0x0a24bb5a, 0xf84f3859, >> + 0x2c855cb2, 0xdeeedfb1, 0xcdbe2c45, 0x3fd5af46, 0x7198540d, 0x83f3d70e, >> + 0x90a324fa, 0x62c8a7f9, 0xb602c312, 0x44694011, 0x5739b3e5, 0xa55230e6, >> + 0xfb410cc2, 0x092a8fc1, 0x1a7a7c35, 0xe811ff36, 0x3cdb9bdd, 0xceb018de, >> + 0xdde0eb2a, 0x2f8b6829, 0x82f63b78, 0x709db87b, 0x63cd4b8f, 0x91a6c88c, >> + 0x456cac67, 0xb7072f64, 0xa457dc90, 0x563c5f93, 0x082f63b7, 0xfa44e0b4, >> + 0xe9141340, 0x1b7f9043, 0xcfb5f4a8, 0x3dde77ab, 0x2e8e845f, 0xdce5075c, >> + 0x92a8fc17, 0x60c37f14, 0x73938ce0, 0x81f80fe3, 0x55326b08, 0xa759e80b, >> + 0xb4091bff, 0x466298fc, 0x1871a4d8, 0xea1a27db, 0xf94ad42f, 0x0b21572c, >> + 0xdfeb33c7, 0x2d80b0c4, 0x3ed04330, 0xccbbc033, 0xa24bb5a6, 0x502036a5, >> + 0x4370c551, 0xb11b4652, 0x65d122b9, 0x97baa1ba, 0x84ea524e, 0x7681d14d, >> + 0x2892ed69, 0xdaf96e6a, 0xc9a99d9e, 0x3bc21e9d, 0xef087a76, 0x1d63f975, >> + 0x0e330a81, 0xfc588982, 0xb21572c9, 0x407ef1ca, 0x532e023e, 0xa145813d, >> + 0x758fe5d6, 0x87e466d5, 0x94b49521, 0x66df1622, 0x38cc2a06, 0xcaa7a905, >> + 0xd9f75af1, 0x2b9cd9f2, 0xff56bd19, 0x0d3d3e1a, 0x1e6dcdee, 0xec064eed, >> + 0xc38d26c4, 0x31e6a5c7, 0x22b65633, 0xd0ddd530, 0x0417b1db, 0xf67c32d8, >> + 0xe52cc12c, 0x1747422f, 0x49547e0b, 0xbb3ffd08, 0xa86f0efc, 0x5a048dff, >> + 0x8ecee914, 0x7ca56a17, 0x6ff599e3, 0x9d9e1ae0, 0xd3d3e1ab, 0x21b862a8, >> + 0x32e8915c, 0xc083125f, 0x144976b4, 0xe622f5b7, 0xf5720643, 0x07198540, >> + 0x590ab964, 0xab613a67, 0xb831c993, 0x4a5a4a90, 0x9e902e7b, 0x6cfbad78, >> + 0x7fab5e8c, 0x8dc0dd8f, 0xe330a81a, 0x115b2b19, 0x020bd8ed, 0xf0605bee, >> + 0x24aa3f05, 0xd6c1bc06, 0xc5914ff2, 0x37faccf1, 0x69e9f0d5, 0x9b8273d6, >> + 0x88d28022, 0x7ab90321, 0xae7367ca, 0x5c18e4c9, 0x4f48173d, 0xbd23943e, >> + 0xf36e6f75, 0x0105ec76, 0x12551f82, 0xe03e9c81, 0x34f4f86a, 0xc69f7b69, >> + 0xd5cf889d, 0x27a40b9e, 0x79b737ba, 0x8bdcb4b9, 0x988c474d, 0x6ae7c44e, >> + 0xbe2da0a5, 0x4c4623a6, 0x5f16d052, 0xad7d5351 >> +}; >> + >> +/** >> + Calculates the CRC32c checksum of the given buffer. >> + >> + @param[in] Buffer Pointer to the buffer. >> + @param[in] Length Length of the buffer, in bytes. >> + @param[in] InitialValue Initial value of the CRC. >> + >> + @return The CRC32c checksum. >> +**/ >> +UINT32 >> +EFIAPI >> +CalculateCrc32c ( >> + IN CONST VOID *Buffer, >> + IN UINTN Length, >> + IN UINT32 InitialValue >> + ) >> +{ >> + CONST UINT8 *Buf; >> + UINT32 Crc; >> + >> + Buf = Buffer; >> + Crc = ~InitialValue; >> + >> + while (Length-- != 0) { >> + Crc = mCrc32cLookupTable[(Crc & 0xFF) ^ *(Buf++)] ^ (Crc >> 8); >> + } >> + >> + return ~Crc; >> +} >> -- >> 2.35.1 >> >> > > -- > Pedro Falcato > > > -- Pedro Falcato --000000000000825f7005debffbf3 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Ping. Could someone review it?

On Mon, Apr 25, 2022 at = 6:13 PM Pedro Falcato via groups.io <pe= dro.falcato=3Dgmail.com@groups.io> wrote:
Ping. If someone could take a look, it would be much apprecia= ted.

On Thu, Apr 7, 2022 at 11:02 PM Pedro Falcato <pedro.falcato@gmail.com>= wrote:
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3D38= 71

Add the CRC16-ANSI and CRC32C implementations previously found at
Features/Ext4Pkg/Ext4Dxe/Crc{16,32c}.c to BaseLib.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>

Signed-off-by: Pedro Falcato <pedro.falcato@gmail.com>
---
=C2=A0MdePkg/Include/Library/BaseLib.h=C2=A0 |=C2=A0 35 +++++++-
=C2=A0MdePkg/Library/BaseLib/CheckSum.c | 144 +++++++++++++++++++++++++++++= +
=C2=A02 files changed, 178 insertions(+), 1 deletion(-)

diff --git a/MdePkg/Include/Library/BaseLib.h b/MdePkg/Include/Library/Base= Lib.h
index 6aa0d972186e..f365de9f74a0 100644
--- a/MdePkg/Include/Library/BaseLib.h
+++ b/MdePkg/Include/Library/BaseLib.h
@@ -4503,6 +4503,40 @@ CalculateCrc32 (
=C2=A0 =C2=A0IN=C2=A0 UINTN=C2=A0 Length
=C2=A0 =C2=A0);

+/**
+=C2=A0 =C2=A0Calculates the CRC16-ANSI checksum of the given buffer.
+
+=C2=A0 =C2=A0@param[in]=C2=A0 =C2=A0 =C2=A0 Buffer=C2=A0 =C2=A0 =C2=A0 =C2= =A0 Pointer to the buffer.
+=C2=A0 =C2=A0@param[in]=C2=A0 =C2=A0 =C2=A0 Length=C2=A0 =C2=A0 =C2=A0 =C2= =A0 Length of the buffer, in bytes.
+=C2=A0 =C2=A0@param[in]=C2=A0 =C2=A0 =C2=A0 InitialValue=C2=A0 Initial val= ue of the CRC.
+
+=C2=A0 =C2=A0@return The CRC16-ANSI checksum.
+**/
+UINT16
+EFIAPI
+CalculateCrc16Ansi (
+=C2=A0 IN=C2=A0 CONST VOID=C2=A0 *Buffer,
+=C2=A0 IN=C2=A0 UINTN=C2=A0 =C2=A0 =C2=A0 =C2=A0Length,
+=C2=A0 IN=C2=A0 UINT16=C2=A0 =C2=A0 =C2=A0 InitialValue
+=C2=A0 );
+
+/**
+=C2=A0 =C2=A0Calculates the CRC32c checksum of the given buffer.
+
+=C2=A0 =C2=A0@param[in]=C2=A0 =C2=A0 =C2=A0 Buffer=C2=A0 =C2=A0 =C2=A0 =C2= =A0 Pointer to the buffer.
+=C2=A0 =C2=A0@param[in]=C2=A0 =C2=A0 =C2=A0 Length=C2=A0 =C2=A0 =C2=A0 =C2= =A0 Length of the buffer, in bytes.
+=C2=A0 =C2=A0@param[in]=C2=A0 =C2=A0 =C2=A0 InitialValue=C2=A0 Initial val= ue of the CRC.
+
+=C2=A0 =C2=A0@return The CRC32c checksum.
+**/
+UINT32
+EFIAPI
+CalculateCrc32c (
+=C2=A0 IN CONST VOID=C2=A0 *Buffer,
+=C2=A0 IN UINTN=C2=A0 =C2=A0 =C2=A0 =C2=A0Length,
+=C2=A0 IN UINT32=C2=A0 =C2=A0 =C2=A0 InitialValue
+=C2=A0 );
+
=C2=A0//
=C2=A0// Base Library CPU Functions
=C2=A0//
@@ -4512,7 +4546,6 @@ CalculateCrc32 (

=C2=A0 =C2=A0@param=C2=A0 Context1=C2=A0 =C2=A0 =C2=A0 =C2=A0 Context1 para= meter passed into SwitchStack().
=C2=A0 =C2=A0@param=C2=A0 Context2=C2=A0 =C2=A0 =C2=A0 =C2=A0 Context2 para= meter passed into SwitchStack().
-
=C2=A0**/
=C2=A0typedef
=C2=A0VOID
diff --git a/MdePkg/Library/BaseLib/CheckSum.c b/MdePkg/Library/BaseLib/Che= ckSum.c
index 28dee5ac6a15..b6a076573191 100644
--- a/MdePkg/Library/BaseLib/CheckSum.c
+++ b/MdePkg/Library/BaseLib/CheckSum.c
@@ -3,6 +3,7 @@
=C2=A0 =C2=A0algorithm.

=C2=A0 =C2=A0Copyright (c) 2007 - 2018, Intel Corporation. All rights reser= ved.<BR>
+=C2=A0 Copyright (c) 2022, Pedro Falcato. All rights reserved.<BR> =C2=A0 =C2=A0SPDX-License-Identifier: BSD-2-Clause-Patent

=C2=A0**/
@@ -618,3 +619,146 @@ CalculateCrc32 (

=C2=A0 =C2=A0return Crc ^ 0xffffffff;
=C2=A0}
+
+GLOBAL_REMOVE_IF_UNREFERENCED STATIC CONST UINT16=C2=A0 mCrc16LookupTable[= 256] =3D
+{
+=C2=A0 0x0000, 0xC0C1, 0xC181, 0x0140, 0xC301, 0x03C0, 0x0280, 0xC241,
+=C2=A0 0xC601, 0x06C0, 0x0780, 0xC741, 0x0500, 0xC5C1, 0xC481, 0x0440,
+=C2=A0 0xCC01, 0x0CC0, 0x0D80, 0xCD41, 0x0F00, 0xCFC1, 0xCE81, 0x0E40,
+=C2=A0 0x0A00, 0xCAC1, 0xCB81, 0x0B40, 0xC901, 0x09C0, 0x0880, 0xC841,
+=C2=A0 0xD801, 0x18C0, 0x1980, 0xD941, 0x1B00, 0xDBC1, 0xDA81, 0x1A40,
+=C2=A0 0x1E00, 0xDEC1, 0xDF81, 0x1F40, 0xDD01, 0x1DC0, 0x1C80, 0xDC41,
+=C2=A0 0x1400, 0xD4C1, 0xD581, 0x1540, 0xD701, 0x17C0, 0x1680, 0xD641,
+=C2=A0 0xD201, 0x12C0, 0x1380, 0xD341, 0x1100, 0xD1C1, 0xD081, 0x1040,
+=C2=A0 0xF001, 0x30C0, 0x3180, 0xF141, 0x3300, 0xF3C1, 0xF281, 0x3240,
+=C2=A0 0x3600, 0xF6C1, 0xF781, 0x3740, 0xF501, 0x35C0, 0x3480, 0xF441,
+=C2=A0 0x3C00, 0xFCC1, 0xFD81, 0x3D40, 0xFF01, 0x3FC0, 0x3E80, 0xFE41,
+=C2=A0 0xFA01, 0x3AC0, 0x3B80, 0xFB41, 0x3900, 0xF9C1, 0xF881, 0x3840,
+=C2=A0 0x2800, 0xE8C1, 0xE981, 0x2940, 0xEB01, 0x2BC0, 0x2A80, 0xEA41,
+=C2=A0 0xEE01, 0x2EC0, 0x2F80, 0xEF41, 0x2D00, 0xEDC1, 0xEC81, 0x2C40,
+=C2=A0 0xE401, 0x24C0, 0x2580, 0xE541, 0x2700, 0xE7C1, 0xE681, 0x2640,
+=C2=A0 0x2200, 0xE2C1, 0xE381, 0x2340, 0xE101, 0x21C0, 0x2080, 0xE041,
+=C2=A0 0xA001, 0x60C0, 0x6180, 0xA141, 0x6300, 0xA3C1, 0xA281, 0x6240,
+=C2=A0 0x6600, 0xA6C1, 0xA781, 0x6740, 0xA501, 0x65C0, 0x6480, 0xA441,
+=C2=A0 0x6C00, 0xACC1, 0xAD81, 0x6D40, 0xAF01, 0x6FC0, 0x6E80, 0xAE41,
+=C2=A0 0xAA01, 0x6AC0, 0x6B80, 0xAB41, 0x6900, 0xA9C1, 0xA881, 0x6840,
+=C2=A0 0x7800, 0xB8C1, 0xB981, 0x7940, 0xBB01, 0x7BC0, 0x7A80, 0xBA41,
+=C2=A0 0xBE01, 0x7EC0, 0x7F80, 0xBF41, 0x7D00, 0xBDC1, 0xBC81, 0x7C40,
+=C2=A0 0xB401, 0x74C0, 0x7580, 0xB541, 0x7700, 0xB7C1, 0xB681, 0x7640,
+=C2=A0 0x7200, 0xB2C1, 0xB381, 0x7340, 0xB101, 0x71C0, 0x7080, 0xB041,
+=C2=A0 0x5000, 0x90C1, 0x9181, 0x5140, 0x9301, 0x53C0, 0x5280, 0x9241,
+=C2=A0 0x9601, 0x56C0, 0x5780, 0x9741, 0x5500, 0x95C1, 0x9481, 0x5440,
+=C2=A0 0x9C01, 0x5CC0, 0x5D80, 0x9D41, 0x5F00, 0x9FC1, 0x9E81, 0x5E40,
+=C2=A0 0x5A00, 0x9AC1, 0x9B81, 0x5B40, 0x9901, 0x59C0, 0x5880, 0x9841,
+=C2=A0 0x8801, 0x48C0, 0x4980, 0x8941, 0x4B00, 0x8BC1, 0x8A81, 0x4A40,
+=C2=A0 0x4E00, 0x8EC1, 0x8F81, 0x4F40, 0x8D01, 0x4DC0, 0x4C80, 0x8C41,
+=C2=A0 0x4400, 0x84C1, 0x8581, 0x4540, 0x8701, 0x47C0, 0x4680, 0x8641,
+=C2=A0 0x8201, 0x42C0, 0x4380, 0x8341, 0x4100, 0x81C1, 0x8081, 0x4040
+};
+
+/**
+=C2=A0 =C2=A0Calculates the CRC16-ANSI checksum of the given buffer.
+
+=C2=A0 =C2=A0@param[in]=C2=A0 =C2=A0 =C2=A0 Buffer=C2=A0 =C2=A0 =C2=A0 =C2= =A0 Pointer to the buffer.
+=C2=A0 =C2=A0@param[in]=C2=A0 =C2=A0 =C2=A0 Length=C2=A0 =C2=A0 =C2=A0 =C2= =A0 Length of the buffer, in bytes.
+=C2=A0 =C2=A0@param[in]=C2=A0 =C2=A0 =C2=A0 InitialValue=C2=A0 Initial val= ue of the CRC.
+
+=C2=A0 =C2=A0@return The CRC16-ANSI checksum.
+**/
+UINT16
+EFIAPI
+CalculateCrc16Ansi (
+=C2=A0 IN CONST VOID=C2=A0 *Buffer,
+=C2=A0 IN UINTN=C2=A0 =C2=A0 =C2=A0 =C2=A0Length,
+=C2=A0 IN UINT16=C2=A0 =C2=A0 =C2=A0 InitialValue
+=C2=A0 )
+{
+=C2=A0 CONST UINT8=C2=A0 *Buf;
+=C2=A0 UINT16=C2=A0 =C2=A0 =C2=A0 =C2=A0Crc;
+
+=C2=A0 Buf =3D Buffer;
+
+=C2=A0 Crc =3D ~InitialValue;
+
+=C2=A0 while (Length-- !=3D 0) {
+=C2=A0 =C2=A0 Crc =3D mCrc16LookupTable[(Crc & 0xFF) ^ *(Buf++)] ^ (Cr= c >> 8);
+=C2=A0 }
+
+=C2=A0 return ~Crc;
+}
+
+GLOBAL_REMOVE_IF_UNREFERENCED STATIC CONST UINT32=C2=A0 mCrc32cLookupTable= [256] =3D {
+=C2=A0 0x00000000, 0xf26b8303, 0xe13b70f7, 0x1350f3f4, 0xc79a971f, 0x35f11= 41c,
+=C2=A0 0x26a1e7e8, 0xd4ca64eb, 0x8ad958cf, 0x78b2dbcc, 0x6be22838, 0x9989a= b3b,
+=C2=A0 0x4d43cfd0, 0xbf284cd3, 0xac78bf27, 0x5e133c24, 0x105ec76f, 0xe2354= 46c,
+=C2=A0 0xf165b798, 0x030e349b, 0xd7c45070, 0x25afd373, 0x36ff2087, 0xc494a= 384,
+=C2=A0 0x9a879fa0, 0x68ec1ca3, 0x7bbcef57, 0x89d76c54, 0x5d1d08bf, 0xaf768= bbc,
+=C2=A0 0xbc267848, 0x4e4dfb4b, 0x20bd8ede, 0xd2d60ddd, 0xc186fe29, 0x33ed7= d2a,
+=C2=A0 0xe72719c1, 0x154c9ac2, 0x061c6936, 0xf477ea35, 0xaa64d611, 0x580f5= 512,
+=C2=A0 0x4b5fa6e6, 0xb93425e5, 0x6dfe410e, 0x9f95c20d, 0x8cc531f9, 0x7eaeb= 2fa,
+=C2=A0 0x30e349b1, 0xc288cab2, 0xd1d83946, 0x23b3ba45, 0xf779deae, 0x05125= dad,
+=C2=A0 0x1642ae59, 0xe4292d5a, 0xba3a117e, 0x4851927d, 0x5b016189, 0xa96ae= 28a,
+=C2=A0 0x7da08661, 0x8fcb0562, 0x9c9bf696, 0x6ef07595, 0x417b1dbc, 0xb3109= ebf,
+=C2=A0 0xa0406d4b, 0x522bee48, 0x86e18aa3, 0x748a09a0, 0x67dafa54, 0x95b17= 957,
+=C2=A0 0xcba24573, 0x39c9c670, 0x2a993584, 0xd8f2b687, 0x0c38d26c, 0xfe535= 16f,
+=C2=A0 0xed03a29b, 0x1f682198, 0x5125dad3, 0xa34e59d0, 0xb01eaa24, 0x42752= 927,
+=C2=A0 0x96bf4dcc, 0x64d4cecf, 0x77843d3b, 0x85efbe38, 0xdbfc821c, 0x29970= 11f,
+=C2=A0 0x3ac7f2eb, 0xc8ac71e8, 0x1c661503, 0xee0d9600, 0xfd5d65f4, 0x0f36e= 6f7,
+=C2=A0 0x61c69362, 0x93ad1061, 0x80fde395, 0x72966096, 0xa65c047d, 0x54378= 77e,
+=C2=A0 0x4767748a, 0xb50cf789, 0xeb1fcbad, 0x197448ae, 0x0a24bb5a, 0xf84f3= 859,
+=C2=A0 0x2c855cb2, 0xdeeedfb1, 0xcdbe2c45, 0x3fd5af46, 0x7198540d, 0x83f3d= 70e,
+=C2=A0 0x90a324fa, 0x62c8a7f9, 0xb602c312, 0x44694011, 0x5739b3e5, 0xa5523= 0e6,
+=C2=A0 0xfb410cc2, 0x092a8fc1, 0x1a7a7c35, 0xe811ff36, 0x3cdb9bdd, 0xceb01= 8de,
+=C2=A0 0xdde0eb2a, 0x2f8b6829, 0x82f63b78, 0x709db87b, 0x63cd4b8f, 0x91a6c= 88c,
+=C2=A0 0x456cac67, 0xb7072f64, 0xa457dc90, 0x563c5f93, 0x082f63b7, 0xfa44e= 0b4,
+=C2=A0 0xe9141340, 0x1b7f9043, 0xcfb5f4a8, 0x3dde77ab, 0x2e8e845f, 0xdce50= 75c,
+=C2=A0 0x92a8fc17, 0x60c37f14, 0x73938ce0, 0x81f80fe3, 0x55326b08, 0xa759e= 80b,
+=C2=A0 0xb4091bff, 0x466298fc, 0x1871a4d8, 0xea1a27db, 0xf94ad42f, 0x0b215= 72c,
+=C2=A0 0xdfeb33c7, 0x2d80b0c4, 0x3ed04330, 0xccbbc033, 0xa24bb5a6, 0x50203= 6a5,
+=C2=A0 0x4370c551, 0xb11b4652, 0x65d122b9, 0x97baa1ba, 0x84ea524e, 0x7681d= 14d,
+=C2=A0 0x2892ed69, 0xdaf96e6a, 0xc9a99d9e, 0x3bc21e9d, 0xef087a76, 0x1d63f= 975,
+=C2=A0 0x0e330a81, 0xfc588982, 0xb21572c9, 0x407ef1ca, 0x532e023e, 0xa1458= 13d,
+=C2=A0 0x758fe5d6, 0x87e466d5, 0x94b49521, 0x66df1622, 0x38cc2a06, 0xcaa7a= 905,
+=C2=A0 0xd9f75af1, 0x2b9cd9f2, 0xff56bd19, 0x0d3d3e1a, 0x1e6dcdee, 0xec064= eed,
+=C2=A0 0xc38d26c4, 0x31e6a5c7, 0x22b65633, 0xd0ddd530, 0x0417b1db, 0xf67c3= 2d8,
+=C2=A0 0xe52cc12c, 0x1747422f, 0x49547e0b, 0xbb3ffd08, 0xa86f0efc, 0x5a048= dff,
+=C2=A0 0x8ecee914, 0x7ca56a17, 0x6ff599e3, 0x9d9e1ae0, 0xd3d3e1ab, 0x21b86= 2a8,
+=C2=A0 0x32e8915c, 0xc083125f, 0x144976b4, 0xe622f5b7, 0xf5720643, 0x07198= 540,
+=C2=A0 0x590ab964, 0xab613a67, 0xb831c993, 0x4a5a4a90, 0x9e902e7b, 0x6cfba= d78,
+=C2=A0 0x7fab5e8c, 0x8dc0dd8f, 0xe330a81a, 0x115b2b19, 0x020bd8ed, 0xf0605= bee,
+=C2=A0 0x24aa3f05, 0xd6c1bc06, 0xc5914ff2, 0x37faccf1, 0x69e9f0d5, 0x9b827= 3d6,
+=C2=A0 0x88d28022, 0x7ab90321, 0xae7367ca, 0x5c18e4c9, 0x4f48173d, 0xbd239= 43e,
+=C2=A0 0xf36e6f75, 0x0105ec76, 0x12551f82, 0xe03e9c81, 0x34f4f86a, 0xc69f7= b69,
+=C2=A0 0xd5cf889d, 0x27a40b9e, 0x79b737ba, 0x8bdcb4b9, 0x988c474d, 0x6ae7c= 44e,
+=C2=A0 0xbe2da0a5, 0x4c4623a6, 0x5f16d052, 0xad7d5351
+};
+
+/**
+=C2=A0 =C2=A0Calculates the CRC32c checksum of the given buffer.
+
+=C2=A0 =C2=A0@param[in]=C2=A0 =C2=A0 =C2=A0 Buffer=C2=A0 =C2=A0 =C2=A0 =C2= =A0 Pointer to the buffer.
+=C2=A0 =C2=A0@param[in]=C2=A0 =C2=A0 =C2=A0 Length=C2=A0 =C2=A0 =C2=A0 =C2= =A0 Length of the buffer, in bytes.
+=C2=A0 =C2=A0@param[in]=C2=A0 =C2=A0 =C2=A0 InitialValue=C2=A0 Initial val= ue of the CRC.
+
+=C2=A0 =C2=A0@return The CRC32c checksum.
+**/
+UINT32
+EFIAPI
+CalculateCrc32c (
+=C2=A0 IN CONST VOID=C2=A0 *Buffer,
+=C2=A0 IN UINTN=C2=A0 =C2=A0 =C2=A0 =C2=A0Length,
+=C2=A0 IN UINT32=C2=A0 =C2=A0 =C2=A0 InitialValue
+=C2=A0 )
+{
+=C2=A0 CONST UINT8=C2=A0 *Buf;
+=C2=A0 UINT32=C2=A0 =C2=A0 =C2=A0 =C2=A0Crc;
+
+=C2=A0 Buf =3D Buffer;
+=C2=A0 Crc =3D ~InitialValue;
+
+=C2=A0 while (Length-- !=3D 0) {
+=C2=A0 =C2=A0 Crc =3D mCrc32cLookupTable[(Crc & 0xFF) ^ *(Buf++)] ^ (C= rc >> 8);
+=C2=A0 }
+
+=C2=A0 return ~Crc;
+}
--
2.35.1



--
Pedro Falcato
=20



--
Pedro Falcato
--000000000000825f7005debffbf3--