fb0b259e4e
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5038 6f19259b-4bc3-4df7-8a09-765794883524
299 lines
11 KiB
C
299 lines
11 KiB
C
/** @file
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Definitions and prototypes for DebugPort driver.
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Copyright (c) 2006 - 2008, Intel Corporation. <BR>
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef __DEBUGPORT_H__
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#define __DEBUGPORT_H__
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#include <Uefi.h>
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#include <Protocol/DevicePath.h>
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#include <Protocol/ComponentName.h>
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#include <Protocol/DriverBinding.h>
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#include <Protocol/SerialIo.h>
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#include <Protocol/DebugPort.h>
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#include <Library/DebugLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/UefiLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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#include <Library/DevicePathLib.h>
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//
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// Driver Binding Externs
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//
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extern EFI_DRIVER_BINDING_PROTOCOL gDebugPortDriverBinding;
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extern EFI_COMPONENT_NAME_PROTOCOL gDebugPortComponentName;
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extern EFI_COMPONENT_NAME2_PROTOCOL gDebugPortComponentName2;
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//
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// local type definitions
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//
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#define DEBUGPORT_DEVICE_SIGNATURE EFI_SIGNATURE_32 ('D', 'B', 'G', 'P')
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//
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// Device structure used by driver
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//
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typedef struct {
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UINT32 Signature;
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EFI_HANDLE DriverBindingHandle;
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EFI_HANDLE DebugPortDeviceHandle;
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VOID *DebugPortVariable;
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EFI_DRIVER_BINDING_PROTOCOL DriverBindingInterface;
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EFI_COMPONENT_NAME_PROTOCOL ComponentNameInterface;
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EFI_DEVICE_PATH_PROTOCOL *DebugPortDevicePath;
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EFI_DEBUGPORT_PROTOCOL DebugPortInterface;
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EFI_HANDLE SerialIoDeviceHandle;
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EFI_SERIAL_IO_PROTOCOL *SerialIoBinding;
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UINT64 BaudRate;
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UINT32 ReceiveFifoDepth;
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UINT32 Timeout;
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EFI_PARITY_TYPE Parity;
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UINT8 DataBits;
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EFI_STOP_BITS_TYPE StopBits;
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} DEBUGPORT_DEVICE;
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#define DEBUGPORT_DEVICE_FROM_THIS(a) CR (a, DEBUGPORT_DEVICE, DebugPortInterface, DEBUGPORT_DEVICE_SIGNATURE)
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#define EFI_ACPI_PC_COMPORT_HID EISA_PNP_ID (0x0500)
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#define EFI_ACPI_16550UART_HID EISA_PNP_ID (0x0501)
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#define DEBUGPORT_UART_DEFAULT_BAUDRATE 115200
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#define DEBUGPORT_UART_DEFAULT_PARITY 0
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#define DEBUGPORT_UART_DEFAULT_FIFO_DEPTH 16
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#define DEBUGPORT_UART_DEFAULT_TIMEOUT 50000 // 5 ms
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#define DEBUGPORT_UART_DEFAULT_DATA_BITS 8
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#define DEBUGPORT_UART_DEFAULT_STOP_BITS 1
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#define DEBUGPORT_DRIVER_VERSION 1
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#define EfiIsUartDevicePath(dp) (DevicePathType (dp) == MESSAGING_DEVICE_PATH && DevicePathSubType (dp) == MSG_UART_DP)
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//
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// globals
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//
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extern DEBUGPORT_DEVICE *gDebugPortDevice;
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//
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// Driver binding interface functions...
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//
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EFI_STATUS
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DebugPortEntryPoint (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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;
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EFI_STATUS
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EFIAPI
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DebugPortSupported (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Controller,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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)
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;
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EFI_STATUS
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EFIAPI
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DebugPortStart (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Controller,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
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)
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;
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EFI_STATUS
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EFIAPI
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DebugPortStop (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Controller,
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IN UINTN NumberOfChildren,
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IN EFI_HANDLE *ChildHandleBuffer
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)
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;
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//
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// EFI Component Name Functions
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//
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/**
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Retrieves a Unicode string that is the user readable name of the driver.
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This function retrieves the user readable name of a driver in the form of a
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Unicode string. If the driver specified by This has a user readable name in
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the language specified by Language, then a pointer to the driver name is
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returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
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by This does not support the language specified by Language,
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then EFI_UNSUPPORTED is returned.
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@param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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EFI_COMPONENT_NAME_PROTOCOL instance.
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@param Language[in] A pointer to a Null-terminated ASCII string
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array indicating the language. This is the
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language of the driver name that the caller is
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requesting, and it must match one of the
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languages specified in SupportedLanguages. The
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number of languages supported by a driver is up
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to the driver writer. Language is specified
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in RFC 3066 or ISO 639-2 language code format.
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@param DriverName[out] A pointer to the Unicode string to return.
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This Unicode string is the name of the
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driver specified by This in the language
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specified by Language.
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@retval EFI_SUCCESS The Unicode string for the Driver specified by
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This and the language specified by Language was
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returned in DriverName.
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@retval EFI_INVALID_PARAMETER Language is NULL.
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@retval EFI_INVALID_PARAMETER DriverName is NULL.
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@retval EFI_UNSUPPORTED The driver specified by This does not support
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the language specified by Language.
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**/
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EFI_STATUS
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EFIAPI
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DebugPortComponentNameGetDriverName (
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IN EFI_COMPONENT_NAME_PROTOCOL *This,
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IN CHAR8 *Language,
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OUT CHAR16 **DriverName
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);
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/**
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Retrieves a Unicode string that is the user readable name of the controller
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that is being managed by a driver.
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This function retrieves the user readable name of the controller specified by
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ControllerHandle and ChildHandle in the form of a Unicode string. If the
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driver specified by This has a user readable name in the language specified by
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Language, then a pointer to the controller name is returned in ControllerName,
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and EFI_SUCCESS is returned. If the driver specified by This is not currently
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managing the controller specified by ControllerHandle and ChildHandle,
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then EFI_UNSUPPORTED is returned. If the driver specified by This does not
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support the language specified by Language, then EFI_UNSUPPORTED is returned.
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@param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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EFI_COMPONENT_NAME_PROTOCOL instance.
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@param ControllerHandle[in] The handle of a controller that the driver
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specified by This is managing. This handle
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specifies the controller whose name is to be
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returned.
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@param ChildHandle[in] The handle of the child controller to retrieve
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the name of. This is an optional parameter that
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may be NULL. It will be NULL for device
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drivers. It will also be NULL for a bus drivers
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that wish to retrieve the name of the bus
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controller. It will not be NULL for a bus
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driver that wishes to retrieve the name of a
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child controller.
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@param Language[in] A pointer to a Null-terminated ASCII string
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array indicating the language. This is the
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language of the driver name that the caller is
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requesting, and it must match one of the
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languages specified in SupportedLanguages. The
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number of languages supported by a driver is up
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to the driver writer. Language is specified in
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RFC 3066 or ISO 639-2 language code format.
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@param ControllerName[out] A pointer to the Unicode string to return.
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This Unicode string is the name of the
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controller specified by ControllerHandle and
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ChildHandle in the language specified by
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Language from the point of view of the driver
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specified by This.
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@retval EFI_SUCCESS The Unicode string for the user readable name in
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the language specified by Language for the
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driver specified by This was returned in
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DriverName.
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@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
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@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
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EFI_HANDLE.
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@retval EFI_INVALID_PARAMETER Language is NULL.
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@retval EFI_INVALID_PARAMETER ControllerName is NULL.
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@retval EFI_UNSUPPORTED The driver specified by This is not currently
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managing the controller specified by
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ControllerHandle and ChildHandle.
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@retval EFI_UNSUPPORTED The driver specified by This does not support
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the language specified by Language.
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**/
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EFI_STATUS
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EFIAPI
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DebugPortComponentNameGetControllerName (
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IN EFI_COMPONENT_NAME_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_HANDLE ChildHandle OPTIONAL,
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IN CHAR8 *Language,
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OUT CHAR16 **ControllerName
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);
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//
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// DebugPort member functions
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//
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EFI_STATUS
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EFIAPI
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DebugPortReset (
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IN EFI_DEBUGPORT_PROTOCOL *This
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)
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;
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EFI_STATUS
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EFIAPI
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DebugPortRead (
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IN EFI_DEBUGPORT_PROTOCOL *This,
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IN UINT32 Timeout,
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IN OUT UINTN *BufferSize,
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IN VOID *Buffer
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)
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;
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EFI_STATUS
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EFIAPI
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DebugPortWrite (
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IN EFI_DEBUGPORT_PROTOCOL *This,
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IN UINT32 Timeout,
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IN OUT UINTN *BufferSize,
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OUT VOID *Buffer
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)
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;
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EFI_STATUS
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EFIAPI
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DebugPortPoll (
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IN EFI_DEBUGPORT_PROTOCOL *This
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)
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;
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#endif
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