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/** @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;
}
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