/** @file | |
Copyright (c) 2017-2018, Arm Limited. All rights reserved. | |
SPDX-License-Identifier: BSD-2-Clause-Patent | |
System Control and Management Interface V1.0 | |
http://infocenter.arm.com/help/topic/com.arm.doc.den0056a/ | |
DEN0056A_System_Control_and_Management_Interface.pdf | |
**/ | |
#include <Library/ArmMtlLib.h> | |
#include <Library/DebugLib.h> | |
/** Wait until channel is free. | |
@param[in] Channel Pointer to a channel. | |
@param[in] TimeOutInMicroSeconds Timeout in micro seconds. | |
@retval EFI_UNSUPPORTED Interface not implemented. | |
**/ | |
EFI_STATUS | |
MtlWaitUntilChannelFree ( | |
IN MTL_CHANNEL *Channel, | |
IN UINTN TimeOutInMicroSeconds | |
) | |
{ | |
return EFI_UNSUPPORTED; | |
} | |
/** Return the address of the message payload. | |
@param[in] Channel Pointer to a channel. | |
@retval UINT32* Pointer to the payload. | |
**/ | |
UINT32 * | |
MtlGetChannelPayload ( | |
IN MTL_CHANNEL *Channel | |
) | |
{ | |
ASSERT (FALSE); | |
return NULL; | |
} | |
/** Return pointer to a channel for the requested channel type. | |
@param[in] ChannelType ChannelType, Low or High priority channel. | |
MTL_CHANNEL_TYPE_LOW or | |
MTL_CHANNEL_TYPE_HIGH | |
@param[out] Channel Holds pointer to the channel. | |
@retval EFI_UNSUPPORTED Requested channel type not supported or | |
interface not implemented. | |
**/ | |
EFI_STATUS | |
MtlGetChannel ( | |
IN MTL_CHANNEL_TYPE ChannelType, | |
OUT MTL_CHANNEL **Channel | |
) | |
{ | |
return EFI_UNSUPPORTED; | |
} | |
/** Mark the channel busy and ring the doorbell. | |
@param[in] Channel Pointer to a channel. | |
@param[in] MessageHeader Message header. | |
@param[out] PayloadLength Message length. | |
@retval EFI_UNSUPPORTED Interface not implemented. | |
**/ | |
EFI_STATUS | |
MtlSendMessage ( | |
IN MTL_CHANNEL *Channel, | |
IN UINT32 MessageHeader, | |
OUT UINT32 PayloadLength | |
) | |
{ | |
return EFI_UNSUPPORTED; | |
} | |
/** Wait for a response on a channel. | |
If channel is free after sending message, it implies SCP responded | |
with a response on the channel. | |
@param[in] Channel Pointer to a channel. | |
@retval EFI_UNSUPPORTED Interface not implemented. | |
**/ | |
EFI_STATUS | |
MtlReceiveMessage ( | |
IN MTL_CHANNEL *Channel, | |
OUT UINT32 *MessageHeader, | |
OUT UINT32 *PayloadLength | |
) | |
{ | |
return EFI_UNSUPPORTED; | |
} |