diff options
| author | Leo Duran <leo.duran@amd.com> | 2017-01-14 04:09:51 +0800 |
|---|---|---|
| committer | Liming Gao <liming.gao@intel.com> | 2017-01-17 10:09:50 +0800 |
| commit | 19c6d9feaaf83c87908f8a4003f7b6d9b5cb4377 (patch) | |
| tree | b8547b08b992543612fc24c44d0e8c3b3ba17f4b /MdePkg/Include/Library/IoLib.h | |
| parent | 13a50a6fe1dcfa6600c38456ee24e0f9ecf51b5f (diff) | |
| download | edk2-19c6d9feaaf83c87908f8a4003f7b6d9b5cb4377.tar.gz edk2-19c6d9feaaf83c87908f8a4003f7b6d9b5cb4377.tar.bz2 edk2-19c6d9feaaf83c87908f8a4003f7b6d9b5cb4377.zip | |
MdePkg: Expand BaseIoLibIntrinsic (IoLib class) library
The UefiCpuPkg/CpuIo2Dxe driver and the QemuCfgLib library have duplicate
implementations of I/O Fifo routines. This patch clones the I/O Fifo
routines into the BaseIoLibIntrinsic library and expands the IoLib class
to include the ported I/O Fifo routines.
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Leo Duran <leo.duran@amd.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Diffstat (limited to 'MdePkg/Include/Library/IoLib.h')
| -rw-r--r-- | MdePkg/Include/Library/IoLib.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/MdePkg/Include/Library/IoLib.h b/MdePkg/Include/Library/IoLib.h index a0dd16bcd5..b6df4c10b9 100644 --- a/MdePkg/Include/Library/IoLib.h +++ b/MdePkg/Include/Library/IoLib.h @@ -2,6 +2,8 @@ Provide services to access I/O Ports and MMIO registers.
Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2017, AMD Incorporated. 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
@@ -76,6 +78,56 @@ IoWrite8 ( );
/**
+ 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
+ );
+
+/**
+ 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 retrieve the write data from.
+
+**/
+VOID
+EFIAPI
+IoWriteFifo8 (
+ IN UINTN Port,
+ IN UINTN Count,
+ IN VOID *Buffer
+ );
+
+/**
Reads an 8-bit I/O port, performs a bitwise OR, and writes the
result back to the 8-bit I/O port.
@@ -368,6 +420,56 @@ IoWrite16 ( );
/**
+ 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
+ );
+
+/**
+ 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 retrieve the write data from.
+
+**/
+VOID
+EFIAPI
+IoWriteFifo16 (
+ IN UINTN Port,
+ IN UINTN Count,
+ IN VOID *Buffer
+ );
+
+/**
Reads a 16-bit I/O port, performs a bitwise OR, and writes the
result back to the 16-bit I/O port.
@@ -669,6 +771,56 @@ IoWrite32 ( );
/**
+ 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 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 retrieve the write data from.
+
+**/
+VOID
+EFIAPI
+IoWriteFifo32 (
+ IN UINTN Port,
+ IN UINTN Count,
+ IN VOID *Buffer
+ );
+
+/**
Reads a 32-bit I/O port, performs a bitwise OR, and writes the
result back to the 32-bit I/O port.
|