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Diffstat (limited to 'sys/contrib/edk2/Include/Protocol/DebugPort.h')
| -rw-r--r-- | sys/contrib/edk2/Include/Protocol/DebugPort.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/sys/contrib/edk2/Include/Protocol/DebugPort.h b/sys/contrib/edk2/Include/Protocol/DebugPort.h new file mode 100644 index 000000000000..d3aa3bbf2a4f --- /dev/null +++ b/sys/contrib/edk2/Include/Protocol/DebugPort.h @@ -0,0 +1,140 @@ +/** @file + + The file defines the EFI Debugport protocol. + This protocol is used by debug agent to communicate with the + remote debug host. + + Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#ifndef __DEBUG_PORT_H__ +#define __DEBUG_PORT_H__ + + +/// +/// DebugPortIo protocol {EBA4E8D2-3858-41EC-A281-2647BA9660D0} +/// +#define EFI_DEBUGPORT_PROTOCOL_GUID \ + { \ + 0xEBA4E8D2, 0x3858, 0x41EC, {0xA2, 0x81, 0x26, 0x47, 0xBA, 0x96, 0x60, 0xD0 } \ + } + +extern EFI_GUID gEfiDebugPortProtocolGuid; + +typedef struct _EFI_DEBUGPORT_PROTOCOL EFI_DEBUGPORT_PROTOCOL; + +// +// DebugPort member functions +// + +/** + Resets the debugport. + + @param This A pointer to the EFI_DEBUGPORT_PROTOCOL instance. + + @retval EFI_SUCCESS The debugport device was reset and is in usable state. + @retval EFI_DEVICE_ERROR The debugport device could not be reset and is unusable. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_DEBUGPORT_RESET)( + IN EFI_DEBUGPORT_PROTOCOL *This + ); + +/** + Writes data to the debugport. + + @param This A pointer to the EFI_DEBUGPORT_PROTOCOL instance. + @param Timeout The number of microseconds to wait before timing out a write operation. + @param BufferSize On input, the requested number of bytes of data to write. On output, the + number of bytes of data actually written. + @param Buffer A pointer to a buffer containing the data to write. + + @retval EFI_SUCCESS The data was written. + @retval EFI_DEVICE_ERROR The device reported an error. + @retval EFI_TIMEOUT The data write was stopped due to a timeout. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_DEBUGPORT_WRITE)( + IN EFI_DEBUGPORT_PROTOCOL *This, + IN UINT32 Timeout, + IN OUT UINTN *BufferSize, + IN VOID *Buffer + ); + +/** + Reads data from the debugport. + + @param This A pointer to the EFI_DEBUGPORT_PROTOCOL instance. + @param Timeout The number of microseconds to wait before timing out a read operation. + @param BufferSize On input, the requested number of bytes of data to read. On output, the + number of bytes of data actually number of bytes + of data read and returned in Buffer. + @param Buffer A pointer to a buffer into which the data read will be saved. + + @retval EFI_SUCCESS The data was read. + @retval EFI_DEVICE_ERROR The device reported an error. + @retval EFI_TIMEOUT The operation was stopped due to a timeout or overrun. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_DEBUGPORT_READ)( + IN EFI_DEBUGPORT_PROTOCOL *This, + IN UINT32 Timeout, + IN OUT UINTN *BufferSize, + OUT VOID *Buffer + ); + +/** + Checks to see if any data is available to be read from the debugport device. + + @param This A pointer to the EFI_DEBUGPORT_PROTOCOL instance. + + @retval EFI_SUCCESS At least one byte of data is available to be read. + @retval EFI_DEVICE_ERROR The debugport device is not functioning correctly. + @retval EFI_NOT_READY No data is available to be read. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_DEBUGPORT_POLL)( + IN EFI_DEBUGPORT_PROTOCOL *This + ); + +/// +/// This protocol provides the communication link between the debug agent and the remote host. +/// +struct _EFI_DEBUGPORT_PROTOCOL { + EFI_DEBUGPORT_RESET Reset; + EFI_DEBUGPORT_WRITE Write; + EFI_DEBUGPORT_READ Read; + EFI_DEBUGPORT_POLL Poll; +}; + +// +// DEBUGPORT variable definitions... +// +#define EFI_DEBUGPORT_VARIABLE_NAME L"DEBUGPORT" +#define EFI_DEBUGPORT_VARIABLE_GUID EFI_DEBUGPORT_PROTOCOL_GUID + +extern EFI_GUID gEfiDebugPortVariableGuid; + +// +// DebugPort device path definitions... +// +#define DEVICE_PATH_MESSAGING_DEBUGPORT EFI_DEBUGPORT_PROTOCOL_GUID + +extern EFI_GUID gEfiDebugPortDevicePathGuid; + +typedef struct { + EFI_DEVICE_PATH_PROTOCOL Header; + EFI_GUID Guid; +} DEBUGPORT_DEVICE_PATH; + +#endif |