tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
audk/IntelFrameworkModulePkg/Bus/Isa/IsaSerialDxe/Serial.h

839 lines
28 KiB
C
Raw Blame History

/** @file
Include for Serial Driver
Copyright (c) 2006 - 2009, Intel Corporation.<BR>
All rights reserved. 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 _SERIAL_H_
#define _SERIAL_H_
#include <FrameworkDxe.h>
#include <Protocol/IsaIo.h>
#include <Protocol/SerialIo.h>
#include <Protocol/DevicePath.h>
#include <Library/DebugLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiLib.h>
#include <Library/DevicePathLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/ReportStatusCodeLib.h>
#include <Library/PcdLib.h>
//
// Driver Binding Externs
//
extern EFI_DRIVER_BINDING_PROTOCOL gSerialControllerDriver;
extern EFI_COMPONENT_NAME_PROTOCOL gIsaSerialComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gIsaSerialComponentName2;
//
// Internal Data Structures
//
#define SERIAL_DEV_SIGNATURE SIGNATURE_32 ('s', 'e', 'r', 'd')
#define SERIAL_MAX_BUFFER_SIZE 16
#define TIMEOUT_STALL_INTERVAL 10
//
// Name: SERIAL_DEV_FIFO
// Purpose: To define Receive FIFO and Transmit FIFO
// Context: Used by serial data transmit and receive
// Fields:
// First UINT32: The index of the first data in array Data[]
// Last UINT32: The index, which you can put a new data into array Data[]
// Surplus UINT32: Identify how many data you can put into array Data[]
// Data[] UINT8 : An array, which used to store data
//
typedef struct {
UINT32 First;
UINT32 Last;
UINT32 Surplus;
UINT8 Data[SERIAL_MAX_BUFFER_SIZE];
} SERIAL_DEV_FIFO;
typedef enum {
Uart8250 = 0,
Uart16450 = 1,
Uart16550 = 2,
Uart16550A= 3
} EFI_UART_TYPE;
//
// Name: SERIAL_DEV
// Purpose: To provide device specific information
// Context:
// Fields:
// Signature UINTN: The identity of the serial device
// SerialIo SERIAL_IO_PROTOCOL: Serial I/O protocol interface
// SerialMode SERIAL_IO_MODE:
// DevicePath EFI_DEVICE_PATH_PROTOCOL *: Device path of the serial device
// Handle EFI_HANDLE: The handle instance attached to serial device
// BaseAddress UINT16: The base address of specific serial device
// Receive SERIAL_DEV_FIFO: The FIFO used to store data,
// which is received by UART
// Transmit SERIAL_DEV_FIFO: The FIFO used to store data,
// which you want to transmit by UART
// SoftwareLoopbackEnable BOOLEAN:
// Type EFI_UART_TYPE: Specify the UART type of certain serial device
//
typedef struct {
UINTN Signature;
EFI_HANDLE Handle;
EFI_SERIAL_IO_PROTOCOL SerialIo;
EFI_SERIAL_IO_MODE SerialMode;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
UART_DEVICE_PATH UartDevicePath;
EFI_ISA_IO_PROTOCOL *IsaIo;
UINT16 BaseAddress;
SERIAL_DEV_FIFO Receive;
SERIAL_DEV_FIFO Transmit;
BOOLEAN SoftwareLoopbackEnable;
BOOLEAN HardwareFlowControl;
EFI_UART_TYPE Type;
EFI_UNICODE_STRING_TABLE *ControllerNameTable;
} SERIAL_DEV;
#define SERIAL_DEV_FROM_THIS(a) CR (a, SERIAL_DEV, SerialIo, SERIAL_DEV_SIGNATURE)
//
// Serial Driver Defaults
//
#define SERIAL_PORT_DEFAULT_RECEIVE_FIFO_DEPTH 1
#define SERIAL_PORT_DEFAULT_TIMEOUT 1000000
#define SERIAL_PORT_DEFAULT_CONTROL_MASK 0
//
// (24000000/13)MHz input clock
//
#define SERIAL_PORT_INPUT_CLOCK 1843200
//
// 115200 baud with rounding errors
//
#define SERIAL_PORT_MAX_BAUD_RATE 115400
#define SERIAL_PORT_MIN_BAUD_RATE 50
#define SERIAL_PORT_MAX_RECEIVE_FIFO_DEPTH 16
#define SERIAL_PORT_MIN_TIMEOUT 1 // 1 uS
#define SERIAL_PORT_MAX_TIMEOUT 100000000 // 100 seconds
//
// UART Registers
//
#define SERIAL_REGISTER_THR 0 // WO Transmit Holding Register
#define SERIAL_REGISTER_RBR 0 // RO Receive Buffer Register
#define SERIAL_REGISTER_DLL 0 // R/W Divisor Latch LSB
#define SERIAL_REGISTER_DLM 1 // R/W Divisor Latch MSB
#define SERIAL_REGISTER_IER 1 // R/W Interrupt Enable Register
#define SERIAL_REGISTER_IIR 2 // RO Interrupt Identification Register
#define SERIAL_REGISTER_FCR 2 // WO FIFO Cotrol Register
#define SERIAL_REGISTER_LCR 3 // R/W Line Control Register
#define SERIAL_REGISTER_MCR 4 // R/W Modem Control Register
#define SERIAL_REGISTER_LSR 5 // R/W Line Status Register
#define SERIAL_REGISTER_MSR 6 // R/W Modem Status Register
#define SERIAL_REGISTER_SCR 7 // R/W Scratch Pad Register
#pragma pack(1)
//
// Name: SERIAL_PORT_IER_BITS
// Purpose: Define each bit in Interrupt Enable Register
// Context:
// Fields:
// Ravie Bit0: Receiver Data Available Interrupt Enable
// Theie Bit1: Transmistter Holding Register Empty Interrupt Enable
// Rie Bit2: Receiver Interrupt Enable
// Mie Bit3: Modem Interrupt Enable
// Reserved Bit4-Bit7: Reserved
//
typedef struct {
UINT8 Ravie : 1;
UINT8 Theie : 1;
UINT8 Rie : 1;
UINT8 Mie : 1;
UINT8 Reserved : 4;
} SERIAL_PORT_IER_BITS;
//
// Name: SERIAL_PORT_IER
// Purpose:
// Context:
// Fields:
// Bits SERIAL_PORT_IER_BITS: Bits of the IER
// Data UINT8: the value of the IER
//
typedef union {
SERIAL_PORT_IER_BITS Bits;
UINT8 Data;
} SERIAL_PORT_IER;
//
// Name: SERIAL_PORT_FCR_BITS
// Purpose: Define each bit in FIFO Control Register
// Context:
// Fields:
// TrFIFOE Bit0: Transmit and Receive FIFO Enable
// ResetRF Bit1: Reset Reciever FIFO
// ResetTF Bit2: Reset Transmistter FIFO
// Dms Bit3: DMA Mode Select
// Reserved Bit4-Bit5: Reserved
// Rtb Bit6-Bit7: Receive Trigger Bits
//
typedef struct {
UINT8 TrFIFOE : 1;
UINT8 ResetRF : 1;
UINT8 ResetTF : 1;
UINT8 Dms : 1;
UINT8 Reserved : 2;
UINT8 Rtb : 2;
} SERIAL_PORT_FCR_BITS;
//
// Name: SERIAL_PORT_FCR
// Purpose:
// Context:
// Fields:
// Bits SERIAL_PORT_FCR_BITS: Bits of the FCR
// Data UINT8: the value of the FCR
//
typedef union {
SERIAL_PORT_FCR_BITS Bits;
UINT8 Data;
} SERIAL_PORT_FCR;
//
// Name: SERIAL_PORT_LCR_BITS
// Purpose: Define each bit in Line Control Register
// Context:
// Fields:
// SerialDB Bit0-Bit1: Number of Serial Data Bits
// StopB Bit2: Number of Stop Bits
// ParEn Bit3: Parity Enable
// EvenPar Bit4: Even Parity Select
// SticPar Bit5: Sticky Parity
// BrCon Bit6: Break Control
// DLab Bit7: Divisor Latch Access Bit
//
typedef struct {
UINT8 SerialDB : 2;
UINT8 StopB : 1;
UINT8 ParEn : 1;
UINT8 EvenPar : 1;
UINT8 SticPar : 1;
UINT8 BrCon : 1;
UINT8 DLab : 1;
} SERIAL_PORT_LCR_BITS;
//
// Name: SERIAL_PORT_LCR
// Purpose:
// Context:
// Fields:
// Bits SERIAL_PORT_LCR_BITS: Bits of the LCR
// Data UINT8: the value of the LCR
//
typedef union {
SERIAL_PORT_LCR_BITS Bits;
UINT8 Data;
} SERIAL_PORT_LCR;
//
// Name: SERIAL_PORT_MCR_BITS
// Purpose: Define each bit in Modem Control Register
// Context:
// Fields:
// DtrC Bit0: Data Terminal Ready Control
// Rts Bit1: Request To Send Control
// Out1 Bit2: Output1
// Out2 Bit3: Output2, used to disable interrupt
// Lme; Bit4: Loopback Mode Enable
// Reserved Bit5-Bit7: Reserved
//
typedef struct {
UINT8 DtrC : 1;
UINT8 Rts : 1;
UINT8 Out1 : 1;
UINT8 Out2 : 1;
UINT8 Lme : 1;
UINT8 Reserved : 3;
} SERIAL_PORT_MCR_BITS;
//
// Name: SERIAL_PORT_MCR
// Purpose:
// Context:
// Fields:
// Bits SERIAL_PORT_MCR_BITS: Bits of the MCR
// Data UINT8: the value of the MCR
//
typedef union {
SERIAL_PORT_MCR_BITS Bits;
UINT8 Data;
} SERIAL_PORT_MCR;
//
// Name: SERIAL_PORT_LSR_BITS
// Purpose: Define each bit in Line Status Register
// Context:
// Fields:
// Dr Bit0: Receiver Data Ready Status
// Oe Bit1: Overrun Error Status
// Pe Bit2: Parity Error Status
// Fe Bit3: Framing Error Status
// Bi Bit4: Break Interrupt Status
// Thre Bit5: Transmistter Holding Register Status
// Temt Bit6: Transmitter Empty Status
// FIFOe Bit7: FIFO Error Status
//
typedef struct {
UINT8 Dr : 1;
UINT8 Oe : 1;
UINT8 Pe : 1;
UINT8 Fe : 1;
UINT8 Bi : 1;
UINT8 Thre : 1;
UINT8 Temt : 1;
UINT8 FIFOe : 1;
} SERIAL_PORT_LSR_BITS;
//
// Name: SERIAL_PORT_LSR
// Purpose:
// Context:
// Fields:
// Bits SERIAL_PORT_LSR_BITS: Bits of the LSR
// Data UINT8: the value of the LSR
//
typedef union {
SERIAL_PORT_LSR_BITS Bits;
UINT8 Data;
} SERIAL_PORT_LSR;
//
// Name: SERIAL_PORT_MSR_BITS
// Purpose: Define each bit in Modem Status Register
// Context:
// Fields:
// DeltaCTS Bit0: Delta Clear To Send Status
// DeltaDSR Bit1: Delta Data Set Ready Status
// TrailingEdgeRI Bit2: Trailing Edge of Ring Indicator Status
// DeltaDCD Bit3: Delta Data Carrier Detect Status
// Cts Bit4: Clear To Send Status
// Dsr Bit5: Data Set Ready Status
// Ri Bit6: Ring Indicator Status
// Dcd Bit7: Data Carrier Detect Status
//
typedef struct {
UINT8 DeltaCTS : 1;
UINT8 DeltaDSR : 1;
UINT8 TrailingEdgeRI : 1;
UINT8 DeltaDCD : 1;
UINT8 Cts : 1;
UINT8 Dsr : 1;
UINT8 Ri : 1;
UINT8 Dcd : 1;
} SERIAL_PORT_MSR_BITS;
//
// Name: SERIAL_PORT_MSR
// Purpose:
// Context:
// Fields:
// Bits SERIAL_PORT_MSR_BITS: Bits of the MSR
// Data UINT8: the value of the MSR
//
typedef union {
SERIAL_PORT_MSR_BITS Bits;
UINT8 Data;
} SERIAL_PORT_MSR;
#pragma pack()
//
// Define serial register I/O macros
//
#define READ_RBR(IO, B) IsaSerialReadPort (IO, B, SERIAL_REGISTER_RBR)
#define READ_DLL(IO, B) IsaSerialReadPort (IO, B, SERIAL_REGISTER_DLL)
#define READ_DLM(IO, B) IsaSerialReadPort (IO, B, SERIAL_REGISTER_DLM)
#define READ_IER(IO, B) IsaSerialReadPort (IO, B, SERIAL_REGISTER_IER)
#define READ_IIR(IO, B) IsaSerialReadPort (IO, B, SERIAL_REGISTER_IIR)
#define READ_LCR(IO, B) IsaSerialReadPort (IO, B, SERIAL_REGISTER_LCR)
#define READ_MCR(IO, B) IsaSerialReadPort (IO, B, SERIAL_REGISTER_MCR)
#define READ_LSR(IO, B) IsaSerialReadPort (IO, B, SERIAL_REGISTER_LSR)
#define READ_MSR(IO, B) IsaSerialReadPort (IO, B, SERIAL_REGISTER_MSR)
#define READ_SCR(IO, B) IsaSerialReadPort (IO, B, SERIAL_REGISTER_SCR)
#define WRITE_THR(IO, B, D) IsaSerialWritePort (IO, B, SERIAL_REGISTER_THR, D)
#define WRITE_DLL(IO, B, D) IsaSerialWritePort (IO, B, SERIAL_REGISTER_DLL, D)
#define WRITE_DLM(IO, B, D) IsaSerialWritePort (IO, B, SERIAL_REGISTER_DLM, D)
#define WRITE_IER(IO, B, D) IsaSerialWritePort (IO, B, SERIAL_REGISTER_IER, D)
#define WRITE_FCR(IO, B, D) IsaSerialWritePort (IO, B, SERIAL_REGISTER_FCR, D)
#define WRITE_LCR(IO, B, D) IsaSerialWritePort (IO, B, SERIAL_REGISTER_LCR, D)
#define WRITE_MCR(IO, B, D) IsaSerialWritePort (IO, B, SERIAL_REGISTER_MCR, D)
#define WRITE_LSR(IO, B, D) IsaSerialWritePort (IO, B, SERIAL_REGISTER_LSR, D)
#define WRITE_MSR(IO, B, D) IsaSerialWritePort (IO, B, SERIAL_REGISTER_MSR, D)
#define WRITE_SCR(IO, B, D) IsaSerialWritePort (IO, B, SERIAL_REGISTER_SCR, D)
//
// Prototypes
// Driver model protocol interface
//
/**
Check to see if this driver supports the given controller
@param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param Controller The handle of the controller to test.
@param RemainingDevicePath A pointer to the remaining portion of a device path.
@return EFI_SUCCESS This driver can support the given controller
**/
EFI_STATUS
EFIAPI
SerialControllerDriverSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Start to management the controller passed in
@param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param Controller The handle of the controller to test.
@param RemainingDevicePath A pointer to the remaining portion of a device path.
@return EFI_SUCCESS Driver is started successfully
**/
EFI_STATUS
EFIAPI
SerialControllerDriverStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Disconnect this driver with the controller, uninstall related protocol instance
@param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param Controller The handle of the controller to test.
@param NumberOfChildren Number of child device.
@param ChildHandleBuffer A pointer to the remaining portion of a device path.
@retval EFI_SUCCESS Operation successfully
@retval EFI_DEVICE_ERROR Cannot stop the driver successfully
**/
EFI_STATUS
EFIAPI
SerialControllerDriverStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
);
//
// Serial I/O Protocol Interface
//
/**
Reset serial device.
@param This Pointer to EFI_SERIAL_IO_PROTOCOL
@retval EFI_SUCCESS Reset successfully
@retval EFI_DEVICE_ERROR Failed to reset
**/
EFI_STATUS
EFIAPI
IsaSerialReset (
IN EFI_SERIAL_IO_PROTOCOL *This
);
/**
Set new attributes to a serial device.
@param This Pointer to EFI_SERIAL_IO_PROTOCOL
@param BaudRate The baudrate of the serial device
@param ReceiveFifoDepth The depth of receive FIFO buffer
@param Timeout The request timeout for a single char
@param Parity The type of parity used in serial device
@param DataBits Number of databits used in serial device
@param StopBits Number of stopbits used in serial device
@retval EFI_SUCCESS The new attributes were set
@retval EFI_INVALID_PARAMETERS One or more attributes have an unsupported value
@retval EFI_UNSUPPORTED Data Bits can not set to 5 or 6
@retval EFI_DEVICE_ERROR The serial device is not functioning correctly (no return)
**/
EFI_STATUS
EFIAPI
IsaSerialSetAttributes (
IN EFI_SERIAL_IO_PROTOCOL *This,
IN UINT64 BaudRate,
IN UINT32 ReceiveFifoDepth,
IN UINT32 Timeout,
IN EFI_PARITY_TYPE Parity,
IN UINT8 DataBits,
IN EFI_STOP_BITS_TYPE StopBits
);
/**
Set Control Bits.
@param This Pointer to EFI_SERIAL_IO_PROTOCOL
@param Control Control bits that can be settable
@retval EFI_SUCCESS New Control bits were set successfully
@retval EFI_UNSUPPORTED The Control bits wanted to set are not supported
**/
EFI_STATUS
EFIAPI
IsaSerialSetControl (
IN EFI_SERIAL_IO_PROTOCOL *This,
IN UINT32 Control
);
/**
Get ControlBits.
@param This Pointer to EFI_SERIAL_IO_PROTOCOL
@param Control Control signals of the serial device
@retval EFI_SUCCESS Get Control signals successfully
**/
EFI_STATUS
EFIAPI
IsaSerialGetControl (
IN EFI_SERIAL_IO_PROTOCOL *This,
OUT UINT32 *Control
);
/**
Write the specified number of bytes to serial device.
@param This Pointer to EFI_SERIAL_IO_PROTOCOL
@param BufferSize On input the size of Buffer, on output the amount of
data actually written
@param Buffer The buffer of data to write
@retval EFI_SUCCESS The data were written successfully
@retval EFI_DEVICE_ERROR The device reported an error
@retval EFI_TIMEOUT The write operation was stopped due to timeout
**/
EFI_STATUS
EFIAPI
IsaSerialWrite (
IN EFI_SERIAL_IO_PROTOCOL *This,
IN OUT UINTN *BufferSize,
IN VOID *Buffer
);
/**
Read the specified number of bytes from serial device.
@param This Pointer to EFI_SERIAL_IO_PROTOCOL
@param BufferSize On input the size of Buffer, on output the amount of
data returned in buffer
@param Buffer The buffer to return the data into
@retval EFI_SUCCESS The data were read successfully
@retval EFI_DEVICE_ERROR The device reported an error
@retval EFI_TIMEOUT The read operation was stopped due to timeout
**/
EFI_STATUS
EFIAPI
IsaSerialRead (
IN EFI_SERIAL_IO_PROTOCOL *This,
IN OUT UINTN *BufferSize,
OUT VOID *Buffer
);
//
// Internal Functions
//
/**
Use scratchpad register to test if this serial port is present.
@param SerialDevice Pointer to serial device structure
@return if this serial port is present
**/
BOOLEAN
IsaSerialPortPresent (
IN SERIAL_DEV *SerialDevice
);
/**
Detect whether specific FIFO is full or not.
@param Fifo A pointer to the Data Structure SERIAL_DEV_FIFO
@return whether specific FIFO is full or not
**/
BOOLEAN
IsaSerialFifoFull (
IN SERIAL_DEV_FIFO *Fifo
);
/**
Detect whether specific FIFO is empty or not.
@param Fifo A pointer to the Data Structure SERIAL_DEV_FIFO
@return whether specific FIFO is empty or not
**/
BOOLEAN
IsaSerialFifoEmpty (
IN SERIAL_DEV_FIFO *Fifo
);
/**
Add data to specific FIFO.
@param Fifo A pointer to the Data Structure SERIAL_DEV_FIFO
@param Data the data added to FIFO
@retval EFI_SUCCESS Add data to specific FIFO successfully
@retval EFI_OUT_OF_RESOURCE Failed to add data because FIFO is already full
**/
EFI_STATUS
IsaSerialFifoAdd (
IN SERIAL_DEV_FIFO *Fifo,
IN UINT8 Data
);
/**
Remove data from specific FIFO.
@param Fifo A pointer to the Data Structure SERIAL_DEV_FIFO
@param Data the data removed from FIFO
@retval EFI_SUCCESS Remove data from specific FIFO successfully
@retval EFI_OUT_OF_RESOURCE Failed to remove data because FIFO is empty
**/
EFI_STATUS
IsaSerialFifoRemove (
IN SERIAL_DEV_FIFO *Fifo,
OUT UINT8 *Data
);
/**
Reads and writes all avaliable data.
@param SerialDevice The device to flush
@retval EFI_SUCCESS Data was read/written successfully.
@retval EFI_OUT_OF_RESOURCE Failed because software receive FIFO is full. Note, when
this happens, pending writes are not done.
**/
EFI_STATUS
IsaSerialReceiveTransmit (
IN SERIAL_DEV *SerialDevice
);
/**
Use IsaIo protocol to read serial port.
@param IsaIo Pointer to EFI_ISA_IO_PROTOCOL instance
@param BaseAddress Serial port register group base address
@param Offset Offset in register group
@return Data read from serial port
**/
UINT8
IsaSerialReadPort (
IN EFI_ISA_IO_PROTOCOL *IsaIo,
IN UINT16 BaseAddress,
IN UINT32 Offset
);
/**
Use IsaIo protocol to write serial port.
@param IsaIo Pointer to EFI_ISA_IO_PROTOCOL instance
@param BaseAddress Serial port register group base address
@param Offset Offset in register group
@param Data data which is to be written to some serial port register
**/
VOID
IsaSerialWritePort (
IN EFI_ISA_IO_PROTOCOL *IsaIo,
IN UINT16 BaseAddress,
IN UINT32 Offset,
IN UINT8 Data
);
//
// EFI Component Name Functions
//
/**
Retrieves a Unicode string that is the user readable name of the driver.
This function retrieves the user readable name of a driver in the form of a
Unicode string. If the driver specified by This has a user readable name in
the language specified by Language, then a pointer to the driver name is
returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
by This does not support the language specified by Language,
then EFI_UNSUPPORTED is returned.
@param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param Language[in] A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified
in RFC 4646 or ISO 639-2 language code format.
@param DriverName[out] A pointer to the Unicode string to return.
This Unicode string is the name of the
driver specified by This in the language
specified by Language.
@retval EFI_SUCCESS The Unicode string for the Driver specified by
This and the language specified by Language was
returned in DriverName.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER DriverName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
IsaSerialComponentNameGetDriverName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN CHAR8 *Language,
OUT CHAR16 **DriverName
);
/**
Retrieves a Unicode string that is the user readable name of the controller
that is being managed by a driver.
This function retrieves the user readable name of the controller specified by
ControllerHandle and ChildHandle in the form of a Unicode string. If the
driver specified by This has a user readable name in the language specified by
Language, then a pointer to the controller name is returned in ControllerName,
and EFI_SUCCESS is returned. If the driver specified by This is not currently
managing the controller specified by ControllerHandle and ChildHandle,
then EFI_UNSUPPORTED is returned. If the driver specified by This does not
support the language specified by Language, then EFI_UNSUPPORTED is returned.
@param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param ControllerHandle[in] The handle of a controller that the driver
specified by This is managing. This handle
specifies the controller whose name is to be
returned.
@param ChildHandle[in] The handle of the child controller to retrieve
the name of. This is an optional parameter that
may be NULL. It will be NULL for device
drivers. It will also be NULL for a bus drivers
that wish to retrieve the name of the bus
controller. It will not be NULL for a bus
driver that wishes to retrieve the name of a
child controller.
@param Language[in] A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified in
RFC 4646 or ISO 639-2 language code format.
@param ControllerName[out] A pointer to the Unicode string to return.
This Unicode string is the name of the
controller specified by ControllerHandle and
ChildHandle in the language specified by
Language from the point of view of the driver
specified by This.
@retval EFI_SUCCESS The Unicode string for the user readable name in
the language specified by Language for the
driver specified by This was returned in
DriverName.
@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
EFI_HANDLE.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER ControllerName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This is not currently
managing the controller specified by
ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
IsaSerialComponentNameGetControllerName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT CHAR16 **ControllerName
);
/**
Add the component name for the serial io device
@param SerialDevice A pointer to the SERIAL_DEV instance.
@param IsaIo A pointer to the EFI_ISA_IO_PROTOCOL instance.
**/
VOID
AddName (
IN SERIAL_DEV *SerialDevice,
IN EFI_ISA_IO_PROTOCOL *IsaIo
);
#endif
Reference in New Issue View Git Blame Copy Permalink