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MdePkg/DxeIoLibCpuIo2: Add new Fifo routines in IoLib class 

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>
This commit is contained in:
Leo Duran 2017-01-14 04:09:55 +08:00 committed by Liming Gao
parent afb84b5f92
commit 61e1deece1
2 changed files with 320 additions and 11 deletions
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71
MdePkg/Library/DxeIoLibCpuIo2/DxeCpuIo2LibInternal.h
View File

@ -2,6 +2,8 @@
Internal include file of DXE CPU IO2 Library. Internal include file of DXE CPU IO2 Library.
Copyright (c) 2010, Intel Corporation. All rights reserved.<BR> Copyright (c) 2010, 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 This program and the accompanying materials are licensed and made available
under the terms and conditions of the BSD License which accompanies this under the terms and conditions of the BSD License which accompanies this
distribution. The full text of the license may be found at distribution. The full text of the license may be found at
@ -29,8 +31,10 @@
Reads registers in the EFI CPU I/O space. Reads registers in the EFI CPU I/O space.
Reads the I/O port specified by Port with registers width specified by Width. Reads the I/O port specified by Port with registers width specified by Width.
The read value is returned. If such operations are not supported, then ASSERT(). The read value is returned.
This function must guarantee that all I/O read and write operations are serialized. This function must guarantee that all I/O read and write operations are serialized.
If such operations are not supported, then ASSERT().
@param Port The base address of the I/O operation. @param Port The base address of the I/O operation.
The caller is responsible for aligning the Address if required. The caller is responsible for aligning the Address if required.
@ -42,16 +46,18 @@
UINT64 UINT64
EFIAPI EFIAPI
IoReadWorker ( IoReadWorker (
IN UINTN Port, IN UINTN Port,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width IN EFI_CPU_IO_PROTOCOL_WIDTH Width
); );
/** /**
Writes registers in the EFI CPU I/O space. Writes registers in the EFI CPU I/O space.
Writes the I/O port specified by Port with registers width and value specified by Width Writes the I/O port specified by Port with registers width and value specified by Width
and Data respectively. Data is returned. If such operations are not supported, then ASSERT(). and Data respectively. Data is returned.
This function must guarantee that all I/O read and write operations are serialized. This function must guarantee that all I/O read and write operations are serialized.
If such operations are not supported, then ASSERT().
@param Port The base address of the I/O operation. @param Port The base address of the I/O operation.
The caller is responsible for aligning the Address if required. The caller is responsible for aligning the Address if required.
@ -64,9 +70,59 @@ IoReadWorker (
UINT64 UINT64
EFIAPI EFIAPI
IoWriteWorker ( IoWriteWorker (
IN UINTN Port, IN UINTN Port,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width, IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 Data IN UINT64 Data
);
/**
Reads registers in the EFI CPU I/O space.
Reads the I/O port specified by Port with registers width specified by Width.
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 such operations are not supported, then ASSERT().
@param Port The base address of the I/O operation.
The caller is responsible for aligning the Address if required.
@param Width The width of the I/O operation.
@param Count The number of times to read I/O port.
@param Buffer The buffer to store the read data into.
**/
VOID
EFIAPI
IoReadFifoWorker (
IN UINTN Port,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINTN Count,
IN VOID *Buffer
);
/**
Writes registers in the EFI CPU I/O space.
Writes the I/O port specified by Port with registers width specified by Width.
The port is written Count times, and the write data is retrieved from the provided Buffer.
This function must guarantee that all I/O read and write operations are serialized.
If such operations are not supported, then ASSERT().
@param Port The base address of the I/O operation.
The caller is responsible for aligning the Address if required.
@param Width The width of the I/O operation.
@param Count The number of times to write I/O port.
@param Buffer The buffer to store the read data into.
**/
VOID
EFIAPI
IoWriteFifoWorker (
IN UINTN Port,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINTN Count,
IN VOID *Buffer
); );
/** /**
@ -79,6 +135,7 @@ IoWriteWorker (
@param Address The MMIO register to read. @param Address The MMIO register to read.
The caller is responsible for aligning the Address if required. The caller is responsible for aligning the Address if required.
@param Width The width of the I/O operation. @param Width The width of the I/O operation.
@param Count The number of times to write I/O port.
@return Data read from registers in the EFI system memory space. @return Data read from registers in the EFI system memory space.

260
MdePkg/Library/DxeIoLibCpuIo2/IoLib.c
View File

@ -2,6 +2,8 @@
I/O Library instance based on EFI_CPU_IO2_PROTOCOL. I/O Library instance based on EFI_CPU_IO2_PROTOCOL.
Copyright (c) 2010, Intel Corporation. All rights reserved.<BR> Copyright (c) 2010, 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 This program and the accompanying materials are licensed and made available
under the terms and conditions of the BSD License which accompanies this under the terms and conditions of the BSD License which accompanies this
distribution. The full text of the license may be found at distribution. The full text of the license may be found at
@ -50,8 +52,10 @@ IoLibConstructor (
Reads registers in the EFI CPU I/O space. Reads registers in the EFI CPU I/O space.
Reads the I/O port specified by Port with registers width specified by Width. Reads the I/O port specified by Port with registers width specified by Width.
The read value is returned. If such operations are not supported, then ASSERT(). The read value is returned.
This function must guarantee that all I/O read and write operations are serialized. This function must guarantee that all I/O read and write operations are serialized.
If such operations are not supported, then ASSERT().
@param Port The base address of the I/O operation. @param Port The base address of the I/O operation.
The caller is responsible for aligning the Address if required. The caller is responsible for aligning the Address if required.
@ -67,8 +71,8 @@ IoReadWorker (
IN EFI_CPU_IO_PROTOCOL_WIDTH Width IN EFI_CPU_IO_PROTOCOL_WIDTH Width
) )
{ {
EFI_STATUS Status; EFI_STATUS Status;
UINT64 Data; UINT64 Data;
Status = mCpuIo->Io.Read (mCpuIo, Width, Port, 1, &Data); Status = mCpuIo->Io.Read (mCpuIo, Width, Port, 1, &Data);
ASSERT_EFI_ERROR (Status); ASSERT_EFI_ERROR (Status);
@ -80,8 +84,10 @@ IoReadWorker (
Writes registers in the EFI CPU I/O space. Writes registers in the EFI CPU I/O space.
Writes the I/O port specified by Port with registers width and value specified by Width Writes the I/O port specified by Port with registers width and value specified by Width
and Data respectively. Data is returned. If such operations are not supported, then ASSERT(). and Data respectively. Data is returned.
This function must guarantee that all I/O read and write operations are serialized. This function must guarantee that all I/O read and write operations are serialized.
If such operations are not supported, then ASSERT().
@param Port The base address of the I/O operation. @param Port The base address of the I/O operation.
The caller is responsible for aligning the Address if required. The caller is responsible for aligning the Address if required.
@ -107,6 +113,68 @@ IoWriteWorker (
return Data; return Data;
} }
/**
Reads registers in the EFI CPU I/O space.
Reads the I/O port specified by Port with registers width specified by Width.
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 such operations are not supported, then ASSERT().
@param Port The base address of the I/O operation.
The caller is responsible for aligning the Address if required.
@param Width The width of the I/O operation.
@param Count The number of times to read I/O port.
@param Buffer The buffer to store the read data into.
**/
VOID
EFIAPI
IoReadFifoWorker (
IN UINTN Port,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINTN Count,
IN VOID *Buffer
)
{
EFI_STATUS Status;
Status = mCpuIo->Io.Read (mCpuIo, Width, Port, Count, Buffer);
ASSERT_EFI_ERROR (Status);
}
/**
Writes registers in the EFI CPU I/O space.
Writes the I/O port specified by Port with registers width specified by Width.
The port is written Count times, and the write data is retrieved from the provided Buffer.
This function must guarantee that all I/O read and write operations are serialized.
If such operations are not supported, then ASSERT().
@param Port The base address of the I/O operation.
The caller is responsible for aligning the Address if required.
@param Width The width of the I/O operation.
@param Count The number of times to write I/O port.
@param Buffer The buffer to store the read data into.
**/
VOID
EFIAPI
IoWriteFifoWorker (
IN UINTN Port,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINTN Count,
IN VOID *Buffer
)
{
EFI_STATUS Status;
Status = mCpuIo->Io.Write (mCpuIo, Width, Port, Count, Buffer);
ASSERT_EFI_ERROR (Status);
}
/** /**
Reads memory-mapped registers in the EFI system memory space. Reads memory-mapped registers in the EFI system memory space.
@ -396,6 +464,190 @@ IoWrite64 (
return IoWriteWorker (Port, EfiCpuIoWidthUint64, Value); return IoWriteWorker (Port, EfiCpuIoWidthUint64, Value);
} }
/**
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
)
{
IoReadFifoWorker (Port, EfiCpuIoWidthFifoUint8, Count, 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
)
{
IoWriteFifoWorker (Port, EfiCpuIoWidthFifoUint8, Count, 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
)
{
//
// Make sure Port is aligned on a 16-bit boundary.
//
ASSERT ((Port & 1) == 0);
IoReadFifoWorker (Port, EfiCpuIoWidthFifoUint16, Count, 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
)
{
//
// Make sure Port is aligned on a 16-bit boundary.
//
ASSERT ((Port & 1) == 0);
IoWriteFifoWorker (Port, EfiCpuIoWidthFifoUint16, Count, 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
)
{
//
// Make sure Port is aligned on a 32-bit boundary.
//
ASSERT ((Port & 3) == 0);
IoReadFifoWorker (Port, EfiCpuIoWidthFifoUint32, Count, 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
)
{
//
// Make sure Port is aligned on a 32-bit boundary.
//
ASSERT ((Port & 3) == 0);
IoWriteFifoWorker (Port, EfiCpuIoWidthFifoUint32, Count, Buffer);
}
/** /**
Reads an 8-bit MMIO register. Reads an 8-bit MMIO register.