From: Leo Duran <leo.duran@amd.com>
To: <edk2-devel@lists.01.org>
Cc: <brijesh.singh@amd.com>, <lersek@redhat.com>,
<liming.gao@intel.com>, <michael.d.kinney@intel.com>,
<jeff.fan@intel.com>, Leo Duran <leo.duran@amd.com>
Subject: [PATCH 1/4] MdePkg: Add BaseIoFifoLib library
Date: Wed, 4 Jan 2017 17:07:50 -0600 [thread overview]
Message-ID: <1483571273-11187-2-git-send-email-leo.duran@amd.com> (raw)
In-Reply-To: <1483571273-11187-1-git-send-email-leo.duran@amd.com>
The UefiCpuPkg/CpuIo2Dxe driver and the QemuCfgLib library have duplicate
implementations of I/O Fifo routines. The patch moves the I/O Fifo
routines into a common BaseIofifoLib library supporting IA32 and X64
architectures under MdePkg.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Reviewed-by: Leo Duran <leo.duran@amd.com>
---
MdePkg/Include/Library/IoFifoLib.h | 175 +++++++++++++++++++++++++
MdePkg/Library/BaseIoFifoLib/BaseIoFifoLib.inf | 45 +++++++
MdePkg/Library/BaseIoFifoLib/Ia32/IoFifo.asm | 139 ++++++++++++++++++++
MdePkg/Library/BaseIoFifoLib/Ia32/IoFifo.nasm | 135 +++++++++++++++++++
MdePkg/Library/BaseIoFifoLib/X64/IoFifo.asm | 125 ++++++++++++++++++
MdePkg/Library/BaseIoFifoLib/X64/IoFifo.nasm | 124 ++++++++++++++++++
MdePkg/MdePkg.dec | 3 +
MdePkg/MdePkg.dsc | 1 +
8 files changed, 747 insertions(+)
create mode 100644 MdePkg/Include/Library/IoFifoLib.h
create mode 100644 MdePkg/Library/BaseIoFifoLib/BaseIoFifoLib.inf
create mode 100644 MdePkg/Library/BaseIoFifoLib/Ia32/IoFifo.asm
create mode 100644 MdePkg/Library/BaseIoFifoLib/Ia32/IoFifo.nasm
create mode 100644 MdePkg/Library/BaseIoFifoLib/X64/IoFifo.asm
create mode 100644 MdePkg/Library/BaseIoFifoLib/X64/IoFifo.nasm
diff --git a/MdePkg/Include/Library/IoFifoLib.h b/MdePkg/Include/Library/IoFifoLib.h
new file mode 100644
index 0000000..eed8be1
--- /dev/null
+++ b/MdePkg/Include/Library/IoFifoLib.h
@@ -0,0 +1,175 @@
+/** @file
+ I/O FIFO routines
+
+ Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>
+
+ This program and the accompanying materials are licensed and made available
+ under the terms and conditions of the BSD License which accompanies this
+ distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef _IO_FIFO_H_INCLUDED_
+#define _IO_FIFO_H_INCLUDED_
+
+/**
+ Reads an 8-bit I/O port fifo into a block of memory.
+
+ Reads the 8-bit I/O fifo port specified by Port.
+
+ The port is read Count times, and the read data is
+ stored in the provided Buffer.
+
+ This function must guarantee that all I/O read and write operations are
+ serialized.
+
+ If 8-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to read.
+ @param Count The number of times to read I/O port.
+ @param Buffer The buffer to store the read data into.
+
+**/
+VOID
+EFIAPI
+IoReadFifo8 (
+ IN UINTN Port,
+ IN UINTN Count,
+ OUT VOID *Buffer
+ );
+
+/**
+ Reads a 16-bit I/O port fifo into a block of memory.
+
+ Reads the 16-bit I/O fifo port specified by Port.
+
+ The port is read Count times, and the read data is
+ stored in the provided Buffer.
+
+ This function must guarantee that all I/O read and write operations are
+ serialized.
+
+ If 16-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to read.
+ @param Count The number of times to read I/O port.
+ @param Buffer The buffer to store the read data into.
+
+**/
+VOID
+EFIAPI
+IoReadFifo16 (
+ IN UINTN Port,
+ IN UINTN Count,
+ OUT VOID *Buffer
+ );
+
+/**
+ Reads a 32-bit I/O port fifo into a block of memory.
+
+ Reads the 32-bit I/O fifo port specified by Port.
+
+ The port is read Count times, and the read data is
+ stored in the provided Buffer.
+
+ This function must guarantee that all I/O read and write operations are
+ serialized.
+
+ If 32-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to read.
+ @param Count The number of times to read I/O port.
+ @param Buffer The buffer to store the read data into.
+
+**/
+VOID
+EFIAPI
+IoReadFifo32 (
+ IN UINTN Port,
+ IN UINTN Count,
+ OUT VOID *Buffer
+ );
+
+/**
+ Writes a block of memory into an 8-bit I/O port fifo.
+
+ Writes the 8-bit I/O fifo port specified by Port.
+
+ The port is written Count times, and the write data is
+ retrieved from the provided Buffer.
+
+ This function must guarantee that all I/O write and write operations are
+ serialized.
+
+ If 8-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param Count The number of times to write I/O port.
+ @param Buffer The buffer to store the write data into.
+
+**/
+VOID
+EFIAPI
+IoWriteFifo8 (
+ IN UINTN Port,
+ IN UINTN Count,
+ OUT VOID *Buffer
+ );
+
+/**
+ Writes a block of memory into a 16-bit I/O port fifo.
+
+ Writes the 16-bit I/O fifo port specified by Port.
+
+ The port is written Count times, and the write data is
+ retrieved from the provided Buffer.
+
+ This function must guarantee that all I/O write and write operations are
+ serialized.
+
+ If 16-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param Count The number of times to write I/O port.
+ @param Buffer The buffer to store the write data into.
+
+**/
+VOID
+EFIAPI
+IoWriteFifo16 (
+ IN UINTN Port,
+ IN UINTN Count,
+ OUT VOID *Buffer
+ );
+
+/**
+ Writes a block of memory into a 32-bit I/O port fifo.
+
+ Writes the 32-bit I/O fifo port specified by Port.
+
+ The port is written Count times, and the write data is
+ retrieved from the provided Buffer.
+
+ This function must guarantee that all I/O write and write operations are
+ serialized.
+
+ If 32-bit I/O port operations are not supported, then ASSERT().
+
+ @param Port The I/O port to write.
+ @param Count The number of times to write I/O port.
+ @param Buffer The buffer to store the write data into.
+
+**/
+VOID
+EFIAPI
+IoWriteFifo32 (
+ IN UINTN Port,
+ IN UINTN Count,
+ OUT VOID *Buffer
+ );
+
+#endif
diff --git a/MdePkg/Library/BaseIoFifoLib/BaseIoFifoLib.inf b/MdePkg/Library/BaseIoFifoLib/BaseIoFifoLib.inf
new file mode 100644
index 0000000..63202b3
--- /dev/null
+++ b/MdePkg/Library/BaseIoFifoLib/BaseIoFifoLib.inf
@@ -0,0 +1,45 @@
+## @file
+# Base I/O FiFo Library using REP string instructions.
+#
+# Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2017, AMD Inc. All rights reserved.<BR>
+#
+# This program and the accompanying materials
+# are licensed and made available under the terms and conditions of the BSD License
+# which accompanies this distribution. The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+# Derived from:
+# UefiCpuPkg/CpuIo2Dxe
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = BaseIoFifoLib
+ FILE_GUID = 5591c2ef-cb95-4b56-a907-f057b1b96a3d
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = IoFifoLib
+
+#
+# VALID_ARCHITECTURES = IA32 X64
+#
+
+[Sources.IA32]
+ Ia32/IoFifo.nasm
+ Ia32/IoFifo.asm
+
+[Sources.X64]
+ X64/IoFifo.nasm
+ X64/IoFifo.asm
+
+[Packages]
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ DebugLib
+ IoLib
diff --git a/MdePkg/Library/BaseIoFifoLib/Ia32/IoFifo.asm b/MdePkg/Library/BaseIoFifoLib/Ia32/IoFifo.asm
new file mode 100644
index 0000000..da8a1f2
--- /dev/null
+++ b/MdePkg/Library/BaseIoFifoLib/Ia32/IoFifo.asm
@@ -0,0 +1,139 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+;
+; This program and the accompanying materials are licensed and made available
+; under the terms and conditions of the BSD License which accompanies this
+; distribution. The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php.
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+;------------------------------------------------------------------------------
+
+ .586P
+ .model flat,C
+ .code
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoReadFifo8 (
+; IN UINTN Port,
+; IN UINTN Size,
+; IN VOID *Buffer
+; );
+;------------------------------------------------------------------------------
+IoReadFifo8 PROC
+ push edi
+ cld
+ mov dx, [esp + 8]
+ mov ecx, [esp + 12]
+ mov edi, [esp + 16]
+rep insb
+ pop edi
+ ret
+IoReadFifo8 ENDP
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoReadFifo16 (
+; IN UINTN Port,
+; IN UINTN Size,
+; IN VOID *Buffer
+; );
+;------------------------------------------------------------------------------
+IoReadFifo16 PROC
+ push edi
+ cld
+ mov dx, [esp + 8]
+ mov ecx, [esp + 12]
+ mov edi, [esp + 16]
+rep insw
+ pop edi
+ ret
+IoReadFifo16 ENDP
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoReadFifo32 (
+; IN UINTN Port,
+; IN UINTN Size,
+; IN VOID *Buffer
+; );
+;------------------------------------------------------------------------------
+IoReadFifo32 PROC
+ push edi
+ cld
+ mov dx, [esp + 8]
+ mov ecx, [esp + 12]
+ mov edi, [esp + 16]
+rep insd
+ pop edi
+ ret
+IoReadFifo32 ENDP
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoWriteFifo8 (
+; IN UINTN Port,
+; IN UINTN Size,
+; IN VOID *Buffer
+; );
+;------------------------------------------------------------------------------
+IoWriteFifo8 PROC
+ push esi
+ cld
+ mov dx, [esp + 8]
+ mov ecx, [esp + 12]
+ mov esi, [esp + 16]
+rep outsb
+ pop esi
+ ret
+IoWriteFifo8 ENDP
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoWriteFifo16 (
+; IN UINTN Port,
+; IN UINTN Size,
+; IN VOID *Buffer
+; );
+;------------------------------------------------------------------------------
+IoWriteFifo16 PROC
+ push esi
+ cld
+ mov dx, [esp + 8]
+ mov ecx, [esp + 12]
+ mov esi, [esp + 16]
+rep outsw
+ pop esi
+ ret
+IoWriteFifo16 ENDP
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoWriteFifo32 (
+; IN UINTN Port,
+; IN UINTN Size,
+; IN VOID *Buffer
+; );
+;------------------------------------------------------------------------------
+IoWriteFifo32 PROC
+ push esi
+ cld
+ mov dx, [esp + 8]
+ mov ecx, [esp + 12]
+ mov esi, [esp + 16]
+rep outsd
+ pop esi
+ ret
+IoWriteFifo32 ENDP
+
+ END
diff --git a/MdePkg/Library/BaseIoFifoLib/Ia32/IoFifo.nasm b/MdePkg/Library/BaseIoFifoLib/Ia32/IoFifo.nasm
new file mode 100644
index 0000000..8f6dd0d
--- /dev/null
+++ b/MdePkg/Library/BaseIoFifoLib/Ia32/IoFifo.nasm
@@ -0,0 +1,135 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+;
+; This program and the accompanying materials are licensed and made available
+; under the terms and conditions of the BSD License which accompanies this
+; distribution. The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php.
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+;------------------------------------------------------------------------------
+
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoReadFifo8 (
+; IN UINTN Port,
+; IN UINTN Size,
+; IN VOID *Buffer
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(IoReadFifo8)
+ASM_PFX(IoReadFifo8):
+ push edi
+ cld
+ mov dx, [esp + 8]
+ mov ecx, [esp + 12]
+ mov edi, [esp + 16]
+rep insb
+ pop edi
+ ret
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoReadFifo16 (
+; IN UINTN Port,
+; IN UINTN Size,
+; IN VOID *Buffer
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(IoReadFifo16)
+ASM_PFX(IoReadFifo16):
+ push edi
+ cld
+ mov dx, [esp + 8]
+ mov ecx, [esp + 12]
+ mov edi, [esp + 16]
+rep insw
+ pop edi
+ ret
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoReadFifo32 (
+; IN UINTN Port,
+; IN UINTN Size,
+; IN VOID *Buffer
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(IoReadFifo32)
+ASM_PFX(IoReadFifo32):
+ push edi
+ cld
+ mov dx, [esp + 8]
+ mov ecx, [esp + 12]
+ mov edi, [esp + 16]
+rep insd
+ pop edi
+ ret
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoWriteFifo8 (
+; IN UINTN Port,
+; IN UINTN Size,
+; IN VOID *Buffer
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(IoWriteFifo8)
+ASM_PFX(IoWriteFifo8):
+ push esi
+ cld
+ mov dx, [esp + 8]
+ mov ecx, [esp + 12]
+ mov esi, [esp + 16]
+rep outsb
+ pop esi
+ ret
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoWriteFifo16 (
+; IN UINTN Port,
+; IN UINTN Size,
+; IN VOID *Buffer
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(IoWriteFifo16)
+ASM_PFX(IoWriteFifo16):
+ push esi
+ cld
+ mov dx, [esp + 8]
+ mov ecx, [esp + 12]
+ mov esi, [esp + 16]
+rep outsw
+ pop esi
+ ret
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoWriteFifo32 (
+; IN UINTN Port,
+; IN UINTN Size,
+; IN VOID *Buffer
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(IoWriteFifo32)
+ASM_PFX(IoWriteFifo32):
+ push esi
+ cld
+ mov dx, [esp + 8]
+ mov ecx, [esp + 12]
+ mov esi, [esp + 16]
+rep outsd
+ pop esi
+ ret
diff --git a/MdePkg/Library/BaseIoFifoLib/X64/IoFifo.asm b/MdePkg/Library/BaseIoFifoLib/X64/IoFifo.asm
new file mode 100644
index 0000000..8714174
--- /dev/null
+++ b/MdePkg/Library/BaseIoFifoLib/X64/IoFifo.asm
@@ -0,0 +1,125 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+;
+; This program and the accompanying materials are licensed and made available
+; under the terms and conditions of the BSD License which accompanies this
+; distribution. The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php.
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+;------------------------------------------------------------------------------
+
+ .code
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoReadFifo8 (
+; IN UINTN Port, // rcx
+; IN UINTN Size, // rdx
+; IN VOID *Buffer // r8
+; );
+;------------------------------------------------------------------------------
+IoReadFifo8 PROC
+ cld
+ xchg rcx, rdx
+ xchg rdi, r8 ; rdi: buffer address; r8: save rdi
+rep insb
+ mov rdi, r8 ; restore rdi
+ ret
+IoReadFifo8 ENDP
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoReadFifo16 (
+; IN UINTN Port, // rcx
+; IN UINTN Size, // rdx
+; IN VOID *Buffer // r8
+; );
+;------------------------------------------------------------------------------
+IoReadFifo16 PROC
+ cld
+ xchg rcx, rdx
+ xchg rdi, r8 ; rdi: buffer address; r8: save rdi
+rep insw
+ mov rdi, r8 ; restore rdi
+ ret
+IoReadFifo16 ENDP
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoReadFifo32 (
+; IN UINTN Port, // rcx
+; IN UINTN Size, // rdx
+; IN VOID *Buffer // r8
+; );
+;------------------------------------------------------------------------------
+IoReadFifo32 PROC
+ cld
+ xchg rcx, rdx
+ xchg rdi, r8 ; rdi: buffer address; r8: save rdi
+rep insd
+ mov rdi, r8 ; restore rdi
+ ret
+IoReadFifo32 ENDP
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoWriteFifo8 (
+; IN UINTN Port, // rcx
+; IN UINTN Size, // rdx
+; IN VOID *Buffer // r8
+; );
+;------------------------------------------------------------------------------
+IoWriteFifo8 PROC
+ cld
+ xchg rcx, rdx
+ xchg rsi, r8 ; rsi: buffer address; r8: save rsi
+rep outsb
+ mov rsi, r8 ; restore rsi
+ ret
+IoWriteFifo8 ENDP
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoWriteFifo16 (
+; IN UINTN Port, // rcx
+; IN UINTN Size, // rdx
+; IN VOID *Buffer // r8
+; );
+;------------------------------------------------------------------------------
+IoWriteFifo16 PROC
+ cld
+ xchg rcx, rdx
+ xchg rsi, r8 ; rsi: buffer address; r8: save rsi
+rep outsw
+ mov rsi, r8 ; restore rsi
+ ret
+IoWriteFifo16 ENDP
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoWriteFifo32 (
+; IN UINTN Port, // rcx
+; IN UINTN Size, // rdx
+; IN VOID *Buffer // r8
+; );
+;------------------------------------------------------------------------------
+IoWriteFifo32 PROC
+ cld
+ xchg rcx, rdx
+ xchg rsi, r8 ; rsi: buffer address; r8: save rsi
+rep outsd
+ mov rsi, r8 ; restore rsi
+ ret
+IoWriteFifo32 ENDP
+
+ END
diff --git a/MdePkg/Library/BaseIoFifoLib/X64/IoFifo.nasm b/MdePkg/Library/BaseIoFifoLib/X64/IoFifo.nasm
new file mode 100644
index 0000000..ef83f0e
--- /dev/null
+++ b/MdePkg/Library/BaseIoFifoLib/X64/IoFifo.nasm
@@ -0,0 +1,124 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+;
+; This program and the accompanying materials are licensed and made available
+; under the terms and conditions of the BSD License which accompanies this
+; distribution. The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php.
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+;------------------------------------------------------------------------------
+
+ DEFAULT REL
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoReadFifo8 (
+; IN UINTN Port, // rcx
+; IN UINTN Size, // rdx
+; IN VOID *Buffer // r8
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(IoReadFifo8)
+ASM_PFX(IoReadFifo8):
+ cld
+ xchg rcx, rdx
+ xchg rdi, r8 ; rdi: buffer address; r8: save rdi
+rep insb
+ mov rdi, r8 ; restore rdi
+ ret
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoReadFifo16 (
+; IN UINTN Port, // rcx
+; IN UINTN Size, // rdx
+; IN VOID *Buffer // r8
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(IoReadFifo16)
+ASM_PFX(IoReadFifo16):
+ cld
+ xchg rcx, rdx
+ xchg rdi, r8 ; rdi: buffer address; r8: save rdi
+rep insw
+ mov rdi, r8 ; restore rdi
+ ret
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoReadFifo32 (
+; IN UINTN Port, // rcx
+; IN UINTN Size, // rdx
+; IN VOID *Buffer // r8
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(IoReadFifo32)
+ASM_PFX(IoReadFifo32):
+ cld
+ xchg rcx, rdx
+ xchg rdi, r8 ; rdi: buffer address; r8: save rdi
+rep insd
+ mov rdi, r8 ; restore rdi
+ ret
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoWriteFifo8 (
+; IN UINTN Port, // rcx
+; IN UINTN Size, // rdx
+; IN VOID *Buffer // r8
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(IoWriteFifo8)
+ASM_PFX(IoWriteFifo8):
+ cld
+ xchg rcx, rdx
+ xchg rsi, r8 ; rsi: buffer address; r8: save rsi
+rep outsb
+ mov rsi, r8 ; restore rsi
+ ret
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoWriteFifo16 (
+; IN UINTN Port, // rcx
+; IN UINTN Size, // rdx
+; IN VOID *Buffer // r8
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(IoWriteFifo16)
+ASM_PFX(IoWriteFifo16):
+ cld
+ xchg rcx, rdx
+ xchg rsi, r8 ; rsi: buffer address; r8: save rsi
+rep outsw
+ mov rsi, r8 ; restore rsi
+ ret
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoWriteFifo32 (
+; IN UINTN Port, // rcx
+; IN UINTN Size, // rdx
+; IN VOID *Buffer // r8
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(IoWriteFifo32)
+ASM_PFX(IoWriteFifo32):
+ cld
+ xchg rcx, rdx
+ xchg rsi, r8 ; rsi: buffer address; r8: save rsi
+rep outsd
+ mov rsi, r8 ; restore rsi
+ ret
diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index f2bdb30..2e3a23b 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -254,6 +254,9 @@
#
RngLib|Include/Library/RngLib.h
+ ## @libraryclass Provide services to access I/O Fifo Ports
+ IoFifoLib|Include/Library/IoFifoLib.h
+
[LibraryClasses.IPF]
## @libraryclass The SAL Library provides a service to make a SAL CALL.
SalLib|Include/Library/SalLib.h
diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc
index b4575cd..ec1c847 100644
--- a/MdePkg/MdePkg.dsc
+++ b/MdePkg/MdePkg.dsc
@@ -155,6 +155,7 @@
MdePkg/Library/SmmMemLib/SmmMemLib.inf
MdePkg/Library/BaseRngLib/BaseRngLib.inf
MdePkg/Library/SmmPciExpressLib/SmmPciExpressLib.inf
+ MdePkg/Library/BaseIoFifoLib/BaseIoFifoLib.inf
[Components.IPF]
MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsic.inf
--
1.9.1
next prev parent reply other threads:[~2017-01-04 23:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-04 23:07 [PATCH 0/4] *** BaseIoFifoLib *** Leo Duran
2017-01-04 23:07 ` Leo Duran [this message]
2017-01-04 23:07 ` [PATCH 2/4] Modify .DSC files that include UefiCpuPkg/CpuIo2Dxe/CpuIo2Dxe.inf Leo Duran
2017-01-05 17:08 ` Laszlo Ersek
2017-01-04 23:07 ` [PATCH 3/4] Modify UefiCpuPkg/CpuIo2Dxe to use new BaseIoFifoLib library Leo Duran
2017-01-04 23:07 ` [PATCH 4/4] Modify QemuFwCfgLib " Leo Duran
2017-01-05 17:12 ` Laszlo Ersek
2017-01-05 17:24 ` [PATCH 0/4] *** BaseIoFifoLib *** Laszlo Ersek
2017-01-05 20:47 ` Duran, Leo
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