start working on in memory serial port
This commit is contained in:
Zhuowei Zhang
parent
9fbf75ca45
commit
167479423d
197
Pixel3XL/Library/InMemorySerialPortLib/BaseSerialPortLibNull.c
Normal file
197
Pixel3XL/Library/InMemorySerialPortLib/BaseSerialPortLibNull.c
Normal file
@ -0,0 +1,197 @@
|
||||
/** @file
|
||||
Null Serial Port library instance with empty functions.
|
||||
|
||||
Copyright (c) 2006 - 2018, 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.
|
||||
|
||||
**/
|
||||
|
||||
|
||||
#include <Base.h>
|
||||
#include <Library/SerialPortLib.h>
|
||||
|
||||
/**
|
||||
Initialize the serial device hardware.
|
||||
|
||||
If no initialization is required, then return RETURN_SUCCESS.
|
||||
If the serial device was successfully initialized, then return RETURN_SUCCESS.
|
||||
If the serial device could not be initialized, then return RETURN_DEVICE_ERROR.
|
||||
|
||||
@retval RETURN_SUCCESS The serial device was initialized.
|
||||
@retval RETURN_DEVICE_ERROR The serial device could not be initialized.
|
||||
|
||||
**/
|
||||
RETURN_STATUS
|
||||
EFIAPI
|
||||
SerialPortInitialize (
|
||||
VOID
|
||||
)
|
||||
{
|
||||
return RETURN_SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
Write data from buffer to serial device.
|
||||
|
||||
Writes NumberOfBytes data bytes from Buffer to the serial device.
|
||||
The number of bytes actually written to the serial device is returned.
|
||||
If the return value is less than NumberOfBytes, then the write operation failed.
|
||||
If Buffer is NULL, then ASSERT().
|
||||
If NumberOfBytes is zero, then return 0.
|
||||
|
||||
@param Buffer The pointer to the data buffer to be written.
|
||||
@param NumberOfBytes The number of bytes to written to the serial device.
|
||||
|
||||
@retval 0 NumberOfBytes is 0.
|
||||
@retval >0 The number of bytes written to the serial device.
|
||||
If this value is less than NumberOfBytes, then the write operation failed.
|
||||
|
||||
**/
|
||||
UINTN
|
||||
EFIAPI
|
||||
SerialPortWrite (
|
||||
IN UINT8 *Buffer,
|
||||
IN UINTN NumberOfBytes
|
||||
)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
Read data from serial device and save the datas in buffer.
|
||||
|
||||
Reads NumberOfBytes data bytes from a serial device into the buffer
|
||||
specified by Buffer. The number of bytes actually read is returned.
|
||||
If the return value is less than NumberOfBytes, then the rest operation failed.
|
||||
If Buffer is NULL, then ASSERT().
|
||||
If NumberOfBytes is zero, then return 0.
|
||||
|
||||
@param Buffer The pointer to the data buffer to store the data read from the serial device.
|
||||
@param NumberOfBytes The number of bytes which will be read.
|
||||
|
||||
@retval 0 Read data failed; No data is to be read.
|
||||
@retval >0 The actual number of bytes read from serial device.
|
||||
|
||||
**/
|
||||
UINTN
|
||||
EFIAPI
|
||||
SerialPortRead (
|
||||
OUT UINT8 *Buffer,
|
||||
IN UINTN NumberOfBytes
|
||||
)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
Polls a serial device to see if there is any data waiting to be read.
|
||||
|
||||
Polls a serial device to see if there is any data waiting to be read.
|
||||
If there is data waiting to be read from the serial device, then TRUE is returned.
|
||||
If there is no data waiting to be read from the serial device, then FALSE is returned.
|
||||
|
||||
@retval TRUE Data is waiting to be read from the serial device.
|
||||
@retval FALSE There is no data waiting to be read from the serial device.
|
||||
|
||||
**/
|
||||
BOOLEAN
|
||||
EFIAPI
|
||||
SerialPortPoll (
|
||||
VOID
|
||||
)
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/**
|
||||
Sets the control bits on a serial device.
|
||||
|
||||
@param Control Sets the bits of Control that are settable.
|
||||
|
||||
@retval RETURN_SUCCESS The new control bits were set on the serial device.
|
||||
@retval RETURN_UNSUPPORTED The serial device does not support this operation.
|
||||
@retval RETURN_DEVICE_ERROR The serial device is not functioning correctly.
|
||||
|
||||
**/
|
||||
RETURN_STATUS
|
||||
EFIAPI
|
||||
SerialPortSetControl (
|
||||
IN UINT32 Control
|
||||
)
|
||||
{
|
||||
return RETURN_UNSUPPORTED;
|
||||
}
|
||||
|
||||
/**
|
||||
Retrieve the status of the control bits on a serial device.
|
||||
|
||||
@param Control A pointer to return the current control signals from the serial device.
|
||||
|
||||
@retval RETURN_SUCCESS The control bits were read from the serial device.
|
||||
@retval RETURN_UNSUPPORTED The serial device does not support this operation.
|
||||
@retval RETURN_DEVICE_ERROR The serial device is not functioning correctly.
|
||||
|
||||
**/
|
||||
RETURN_STATUS
|
||||
EFIAPI
|
||||
SerialPortGetControl (
|
||||
OUT UINT32 *Control
|
||||
)
|
||||
{
|
||||
return RETURN_UNSUPPORTED;
|
||||
}
|
||||
|
||||
/**
|
||||
Sets the baud rate, receive FIFO depth, transmit/receice time out, parity,
|
||||
data bits, and stop bits on a serial device.
|
||||
|
||||
@param BaudRate The requested baud rate. A BaudRate value of 0 will use the
|
||||
device's default interface speed.
|
||||
On output, the value actually set.
|
||||
@param ReveiveFifoDepth The requested depth of the FIFO on the receive side of the
|
||||
serial interface. A ReceiveFifoDepth value of 0 will use
|
||||
the device's default FIFO depth.
|
||||
On output, the value actually set.
|
||||
@param Timeout The requested time out for a single character in microseconds.
|
||||
This timeout applies to both the transmit and receive side of the
|
||||
interface. A Timeout value of 0 will use the device's default time
|
||||
out value.
|
||||
On output, the value actually set.
|
||||
@param Parity The type of parity to use on this serial device. A Parity value of
|
||||
DefaultParity will use the device's default parity value.
|
||||
On output, the value actually set.
|
||||
@param DataBits The number of data bits to use on the serial device. A DataBits
|
||||
vaule of 0 will use the device's default data bit setting.
|
||||
On output, the value actually set.
|
||||
@param StopBits The number of stop bits to use on this serial device. A StopBits
|
||||
value of DefaultStopBits will use the device's default number of
|
||||
stop bits.
|
||||
On output, the value actually set.
|
||||
|
||||
@retval RETURN_SUCCESS The new attributes were set on the serial device.
|
||||
@retval RETURN_UNSUPPORTED The serial device does not support this operation.
|
||||
@retval RETURN_INVALID_PARAMETER One or more of the attributes has an unsupported value.
|
||||
@retval RETURN_DEVICE_ERROR The serial device is not functioning correctly.
|
||||
|
||||
**/
|
||||
RETURN_STATUS
|
||||
EFIAPI
|
||||
SerialPortSetAttributes (
|
||||
IN OUT UINT64 *BaudRate,
|
||||
IN OUT UINT32 *ReceiveFifoDepth,
|
||||
IN OUT UINT32 *Timeout,
|
||||
IN OUT EFI_PARITY_TYPE *Parity,
|
||||
IN OUT UINT8 *DataBits,
|
||||
IN OUT EFI_STOP_BITS_TYPE *StopBits
|
||||
)
|
||||
{
|
||||
return RETURN_UNSUPPORTED;
|
||||
}
|
||||
|
||||
@ -0,0 +1,36 @@
|
||||
## @file
|
||||
# Null instance of Serial Port Library with empty functions.
|
||||
#
|
||||
# Copyright (c) 2006 - 2018, 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.
|
||||
#
|
||||
#
|
||||
##
|
||||
|
||||
[Defines]
|
||||
INF_VERSION = 0x00010005
|
||||
BASE_NAME = BaseSerialPortLibNull
|
||||
MODULE_UNI_FILE = BaseSerialPortLibNull.uni
|
||||
FILE_GUID = E4541241-8897-411a-91F8-7D7E45837146
|
||||
MODULE_TYPE = BASE
|
||||
VERSION_STRING = 1.0
|
||||
LIBRARY_CLASS = SerialPortLib
|
||||
|
||||
|
||||
#
|
||||
# VALID_ARCHITECTURES = IA32 X64 EBC
|
||||
#
|
||||
|
||||
[Sources]
|
||||
BaseSerialPortLibNull.c
|
||||
|
||||
|
||||
[Packages]
|
||||
MdePkg/MdePkg.dec
|
||||
|
||||
@ -0,0 +1,21 @@
|
||||
// /** @file
|
||||
// Null instance of Serial Port Library with empty functions.
|
||||
//
|
||||
// Null instance of Serial Port Library with empty functions.
|
||||
//
|
||||
// Copyright (c) 2006 - 2014, 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.
|
||||
//
|
||||
// **/
|
||||
|
||||
|
||||
#string STR_MODULE_ABSTRACT #language en-US "Null instance of Serial Port Library with empty functions"
|
||||
|
||||
#string STR_MODULE_DESCRIPTION #language en-US "Null instance of Serial Port Library with empty functions."
|
||||
|
||||
Loading…
Reference in New Issue
Block a user