40b0b23ed3
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the ArmPlatformPkg package Cc: Andrew Fish <afish@apple.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Andrew Fish <afish@apple.com>
184 lines
6.9 KiB
C
184 lines
6.9 KiB
C
/** @file
|
|
|
|
Copyright (c) 2011-2016, ARM Limited. All rights reserved.
|
|
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#ifndef __PL011_UART_LIB_H__
|
|
#define __PL011_UART_LIB_H__
|
|
|
|
#include <Uefi/UefiBaseType.h>
|
|
|
|
#include <Protocol/SerialIo.h>
|
|
|
|
/**
|
|
|
|
Initialise the serial port to the specified settings.
|
|
All unspecified settings will be set to the default values.
|
|
|
|
@param[in] UartBase The base address of the serial device.
|
|
@param[in] UartClkInHz The clock in Hz for the serial device.
|
|
Ignored if the PCD PL011UartInteger is not 0
|
|
@param[in out] BaudRate The baud rate of the serial device. If the
|
|
baud rate is not supported, the speed will be
|
|
reduced to the nearest supported one and the
|
|
variable's value will be updated accordingly.
|
|
@param[in out] ReceiveFifoDepth The number of characters the device will
|
|
buffer on input. Value of 0 will use the
|
|
device's default FIFO depth.
|
|
@param[in out] Parity If applicable, this is the EFI_PARITY_TYPE
|
|
that is computed or checked as each character
|
|
is transmitted or received. If the device
|
|
does not support parity, the value is the
|
|
default parity value.
|
|
@param[in out] DataBits The number of data bits in each character.
|
|
@param[in out] StopBits If applicable, the EFI_STOP_BITS_TYPE number
|
|
of stop bits per character.
|
|
If the device does not support stop bits, the
|
|
value is the default stop bit value.
|
|
|
|
@retval RETURN_SUCCESS All attributes were set correctly on the
|
|
serial device.
|
|
@retval RETURN_INVALID_PARAMETER One or more of the attributes has an
|
|
unsupported value.
|
|
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
PL011UartInitializePort (
|
|
IN UINTN UartBase,
|
|
IN UINT32 UartClkInHz,
|
|
IN OUT UINT64 *BaudRate,
|
|
IN OUT UINT32 *ReceiveFifoDepth,
|
|
IN OUT EFI_PARITY_TYPE *Parity,
|
|
IN OUT UINT8 *DataBits,
|
|
IN OUT EFI_STOP_BITS_TYPE *StopBits
|
|
);
|
|
|
|
/**
|
|
|
|
Assert or deassert the control signals on a serial port.
|
|
The following control signals are set according their bit settings :
|
|
. Request to Send
|
|
. Data Terminal Ready
|
|
|
|
@param[in] UartBase UART registers base address
|
|
@param[in] Control The following bits are taken into account :
|
|
. EFI_SERIAL_REQUEST_TO_SEND : assert/deassert the
|
|
"Request To Send" control signal if this bit is
|
|
equal to one/zero.
|
|
. EFI_SERIAL_DATA_TERMINAL_READY : assert/deassert
|
|
the "Data Terminal Ready" control signal if this
|
|
bit is equal to one/zero.
|
|
. EFI_SERIAL_HARDWARE_LOOPBACK_ENABLE : enable/disable
|
|
the hardware loopback if this bit is equal to
|
|
one/zero.
|
|
. EFI_SERIAL_SOFTWARE_LOOPBACK_ENABLE : not supported.
|
|
. EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE : enable/
|
|
disable the hardware flow control based on CTS (Clear
|
|
To Send) and RTS (Ready To Send) control signals.
|
|
|
|
@retval RETURN_SUCCESS The new control bits were set on the device.
|
|
@retval RETURN_UNSUPPORTED The device does not support this operation.
|
|
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
PL011UartSetControl (
|
|
IN UINTN UartBase,
|
|
IN UINT32 Control
|
|
);
|
|
|
|
/**
|
|
|
|
Retrieve the status of the control bits on a serial device.
|
|
|
|
@param[in] UartBase UART registers base address
|
|
@param[out] Control Status of the control bits on a serial device :
|
|
|
|
. EFI_SERIAL_DATA_CLEAR_TO_SEND,
|
|
EFI_SERIAL_DATA_SET_READY,
|
|
EFI_SERIAL_RING_INDICATE,
|
|
EFI_SERIAL_CARRIER_DETECT,
|
|
EFI_SERIAL_REQUEST_TO_SEND,
|
|
EFI_SERIAL_DATA_TERMINAL_READY
|
|
are all related to the DTE (Data Terminal Equipment)
|
|
and DCE (Data Communication Equipment) modes of
|
|
operation of the serial device.
|
|
. EFI_SERIAL_INPUT_BUFFER_EMPTY : equal to one if the
|
|
receive buffer is empty, 0 otherwise.
|
|
. EFI_SERIAL_OUTPUT_BUFFER_EMPTY : equal to one if the
|
|
transmit buffer is empty, 0 otherwise.
|
|
. EFI_SERIAL_HARDWARE_LOOPBACK_ENABLE : equal to one if
|
|
the hardware loopback is enabled (the output feeds the
|
|
receive buffer), 0 otherwise.
|
|
. EFI_SERIAL_SOFTWARE_LOOPBACK_ENABLE : equal to one if
|
|
a loopback is accomplished by software, 0 otherwise.
|
|
. EFI_SERIAL_HARDWARE_FLOW_CONTROL_ENABLE : equal to
|
|
one if the hardware flow control based on CTS (Clear
|
|
To Send) and RTS (Ready To Send) control signals is
|
|
enabled, 0 otherwise.
|
|
|
|
@retval RETURN_SUCCESS The control bits were read from the serial device.
|
|
|
|
**/
|
|
RETURN_STATUS
|
|
EFIAPI
|
|
PL011UartGetControl (
|
|
IN UINTN UartBase,
|
|
OUT UINT32 *Control
|
|
);
|
|
|
|
/**
|
|
Write data to serial device.
|
|
|
|
@param Buffer Point of data buffer which need to be written.
|
|
@param NumberOfBytes Number of output bytes which are cached in Buffer.
|
|
|
|
@retval 0 Write data failed.
|
|
@retval !0 Actual number of bytes written to serial device.
|
|
|
|
**/
|
|
UINTN
|
|
EFIAPI
|
|
PL011UartWrite (
|
|
IN UINTN UartBase,
|
|
IN UINT8 *Buffer,
|
|
IN UINTN NumberOfBytes
|
|
);
|
|
|
|
/**
|
|
Read data from serial device and save the data in buffer.
|
|
|
|
@param Buffer Point of data buffer which need to be written.
|
|
@param NumberOfBytes Number of output bytes which are cached in Buffer.
|
|
|
|
@retval 0 Read data failed.
|
|
@retval !0 Actual number of bytes read from serial device.
|
|
|
|
**/
|
|
UINTN
|
|
EFIAPI
|
|
PL011UartRead (
|
|
IN UINTN UartBase,
|
|
OUT UINT8 *Buffer,
|
|
IN UINTN NumberOfBytes
|
|
);
|
|
|
|
/**
|
|
Check to see if any data is available to be read from the debug device.
|
|
|
|
@retval TRUE At least one byte of data is available to be read
|
|
@retval FALSE No data is available to be read
|
|
|
|
**/
|
|
BOOLEAN
|
|
EFIAPI
|
|
PL011UartPoll (
|
|
IN UINTN UartBase
|
|
);
|
|
|
|
#endif
|