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CloverBootloader/MdeModulePkg/Bus/Sd/EmmcDxe/EmmcBlockIo.c
SergeySlice 6b33696c93 kext and kernel patches will be part of LOADER_ENTRY class 
Signed-off-by: SergeySlice <sergey.slice@gmail.com>
2020-05-01 19:26:28 +03:00

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/** @file
The helper functions for BlockIo and BlockIo2 protocol.
Copyright (c) 2015 - 2017, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "EmmcDxe.h"
/**
Nonblocking I/O callback funtion when the event is signaled.
@param[in] Event The Event this notify function registered to.
@param[in] Context Pointer to the context data registered to the
Event.
**/
VOID
EFIAPI
AsyncIoCallback (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EMMC_REQUEST *Request;
EFI_STATUS Status;
Status = gBS->CloseEvent (Event);
if (EFI_ERROR(Status)) {
return;
}
Request = (EMMC_REQUEST *) Context;
DEBUG_CODE_BEGIN ();
DEBUG ((EFI_D_INFO, "Emmc Async Request: CmdIndex[%d] Arg[%08x] %r\n",
Request->SdMmcCmdBlk.CommandIndex, Request->SdMmcCmdBlk.CommandArgument,
Request->Packet.TransactionStatus));
DEBUG_CODE_END ();
if (EFI_ERROR(Request->Packet.TransactionStatus)) {
Request->Token->TransactionStatus = Request->Packet.TransactionStatus;
}
RemoveEntryList (&Request->Link);
if (Request->IsEnd) {
gBS->SignalEvent (Request->Token->Event);
}
FreePool(Request);
}
/**
Send command SELECT to the device to select/deselect the device.
@param[in] Device A pointer to the EMMC_DEVICE instance.
@param[in] Rca The relative device address to use.
@retval EFI_SUCCESS The request is executed successfully.
@retval EFI_OUT_OF_RESOURCES The request could not be executed due to a lack of resources.
@retval Others The request could not be executed successfully.
**/
EFI_STATUS
EmmcSelect (
IN EMMC_DEVICE *Device,
IN UINT16 Rca
)
{
EFI_STATUS Status;
EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru;
EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
PassThru = Device->Private->PassThru;
ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
ZeroMem (&Packet, sizeof (Packet));
Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
Packet.Timeout = EMMC_GENERIC_TIMEOUT;
SdMmcCmdBlk.CommandIndex = EMMC_SELECT_DESELECT_CARD;
SdMmcCmdBlk.CommandType = SdMmcCommandTypeAc;
SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
SdMmcCmdBlk.CommandArgument = (UINT32)Rca << 16;
Status = PassThru->PassThru (PassThru, Device->Slot, &Packet, NULL);
return Status;
}
/**
Send command SEND_STATUS to the device to get device status.
@param[in] Device A pointer to the EMMC_DEVICE instance.
@param[in] Rca The relative device address to use.
@param[out] DevStatus The buffer to store the device status.
@retval EFI_SUCCESS The request is executed successfully.
@retval EFI_OUT_OF_RESOURCES The request could not be executed due to a lack of resources.
@retval Others The request could not be executed successfully.
**/
EFI_STATUS
EmmcSendStatus (
IN EMMC_DEVICE *Device,
IN UINT16 Rca,
OUT UINT32 *DevStatus
)
{
EFI_STATUS Status;
EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru;
EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
PassThru = Device->Private->PassThru;
ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
ZeroMem (&Packet, sizeof (Packet));
Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
Packet.Timeout = EMMC_GENERIC_TIMEOUT;
SdMmcCmdBlk.CommandIndex = EMMC_SEND_STATUS;
SdMmcCmdBlk.CommandType = SdMmcCommandTypeAc;
SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
SdMmcCmdBlk.CommandArgument = (UINT32)Rca << 16;
Status = PassThru->PassThru (PassThru, Device->Slot, &Packet, NULL);
if (!EFI_ERROR(Status)) {
CopyMem(DevStatus, &SdMmcStatusBlk.Resp0, sizeof (UINT32));
}
return Status;
}
/**
Send command SEND_CSD to the device to get the CSD register data.
@param[in] Device A pointer to the EMMC_DEVICE instance.
@param[in] Rca The relative device address to use.
@param[out] Csd The buffer to store the EMMC_CSD register data.
@retval EFI_SUCCESS The request is executed successfully.
@retval EFI_OUT_OF_RESOURCES The request could not be executed due to a lack of resources.
@retval Others The request could not be executed successfully.
**/
EFI_STATUS
EmmcGetCsd (
IN EMMC_DEVICE *Device,
IN UINT16 Rca,
OUT EMMC_CSD *Csd
)
{
EFI_STATUS Status;
EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru;
EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
PassThru = Device->Private->PassThru;
ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
ZeroMem (&Packet, sizeof (Packet));
ZeroMem (Csd, sizeof (EMMC_CSD));
Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
Packet.Timeout = EMMC_GENERIC_TIMEOUT;
SdMmcCmdBlk.CommandIndex = EMMC_SEND_CSD;
SdMmcCmdBlk.CommandType = SdMmcCommandTypeAc;
SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR2;
SdMmcCmdBlk.CommandArgument = (UINT32)Rca << 16;
Status = PassThru->PassThru (PassThru, Device->Slot, &Packet, NULL);
if (!EFI_ERROR(Status)) {
//
// For details, refer to SD Host Controller Simplified Spec 3.0 Table 2-12.
//
CopyMem(((UINT8*)Csd) + 1, &SdMmcStatusBlk.Resp0, sizeof (EMMC_CSD) - 1);
}
return Status;
}
/**
Send command SEND_CID to the device to get the CID register data.
@param[in] Device A pointer to the EMMC_DEVICE instance.
@param[in] Rca The relative device address to use.
@param[out] Cid The buffer to store the EMMC_CID register data.
@retval EFI_SUCCESS The request is executed successfully.
@retval EFI_OUT_OF_RESOURCES The request could not be executed due to a lack of resources.
@retval Others The request could not be executed successfully.
**/
EFI_STATUS
EmmcGetCid (
IN EMMC_DEVICE *Device,
IN UINT16 Rca,
OUT EMMC_CID *Cid
)
{
EFI_STATUS Status;
EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru;
EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
PassThru = Device->Private->PassThru;
ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
ZeroMem (&Packet, sizeof (Packet));
ZeroMem (Cid, sizeof (EMMC_CID));
Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
Packet.Timeout = EMMC_GENERIC_TIMEOUT;
SdMmcCmdBlk.CommandIndex = EMMC_SEND_CID;
SdMmcCmdBlk.CommandType = SdMmcCommandTypeAc;
SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR2;
SdMmcCmdBlk.CommandArgument = (UINT32)Rca << 16;
Status = PassThru->PassThru (PassThru, Device->Slot, &Packet, NULL);
if (!EFI_ERROR(Status)) {
//
// For details, refer to SD Host Controller Simplified Spec 3.0 Table 2-12.
//
CopyMem(((UINT8*)Cid) + 1, &SdMmcStatusBlk.Resp0, sizeof (EMMC_CID) - 1);
}
return Status;
}
/**
Send command SEND_EXT_CSD to the device to get the EXT_CSD register data.
@param[in] Device A pointer to the EMMC_DEVICE instance.
@param[out] ExtCsd The buffer to store the EXT_CSD register data.
@retval EFI_SUCCESS The request is executed successfully.
@retval EFI_OUT_OF_RESOURCES The request could not be executed due to a lack of resources.
@retval Others The request could not be executed successfully.
**/
EFI_STATUS
EmmcGetExtCsd (
IN EMMC_DEVICE *Device,
OUT EMMC_EXT_CSD *ExtCsd
)
{
EFI_STATUS Status;
EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru;
EFI_SD_MMC_COMMAND_BLOCK SdMmcCmdBlk;
EFI_SD_MMC_STATUS_BLOCK SdMmcStatusBlk;
EFI_SD_MMC_PASS_THRU_COMMAND_PACKET Packet;
PassThru = Device->Private->PassThru;
ZeroMem (&SdMmcCmdBlk, sizeof (SdMmcCmdBlk));
ZeroMem (&SdMmcStatusBlk, sizeof (SdMmcStatusBlk));
ZeroMem (&Packet, sizeof (Packet));
ZeroMem (ExtCsd, sizeof (EMMC_EXT_CSD));
Packet.SdMmcCmdBlk = &SdMmcCmdBlk;
Packet.SdMmcStatusBlk = &SdMmcStatusBlk;
Packet.Timeout = EMMC_GENERIC_TIMEOUT;
SdMmcCmdBlk.CommandIndex = EMMC_SEND_EXT_CSD;
SdMmcCmdBlk.CommandType = SdMmcCommandTypeAdtc;
SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
SdMmcCmdBlk.CommandArgument = 0x00000000;
Packet.InDataBuffer = ExtCsd;
Packet.InTransferLength = sizeof (EMMC_EXT_CSD);
Status = PassThru->PassThru (PassThru, Device->Slot, &Packet, NULL);
return Status;
}
/**
Set the specified EXT_CSD register field through sync or async I/O request.
@param[in] Partition A pointer to the EMMC_PARTITION instance.
@param[in] Offset The offset of the specified field in EXT_CSD register.
@param[in] Value The byte value written to the field specified by Offset.
@param[in] Token A pointer to the token associated with the transaction.
@param[in] IsEnd A boolean to show whether it's the last cmd in a series of cmds.
This parameter is only meaningful in async I/O request.
@retval EFI_SUCCESS The request is executed successfully.
@retval EFI_OUT_OF_RESOURCES The request could not be executed due to a lack of resources.
@retval Others The request could not be executed successfully.
**/
EFI_STATUS
EmmcSetExtCsd (
IN EMMC_PARTITION *Partition,
IN UINT8 Offset,
IN UINT8 Value,
IN EFI_BLOCK_IO2_TOKEN *Token,
IN BOOLEAN IsEnd
)
{
EFI_STATUS Status;
EMMC_DEVICE *Device;
EMMC_REQUEST *SetExtCsdReq;
EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru;
UINT32 CommandArgument;
EFI_TPL OldTpl;
SetExtCsdReq = NULL;
Device = Partition->Device;
PassThru = Device->Private->PassThru;
SetExtCsdReq = AllocateZeroPool(sizeof (EMMC_REQUEST));
if (SetExtCsdReq == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Error;
}
SetExtCsdReq->Signature = EMMC_REQUEST_SIGNATURE;
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
InsertTailList (&Partition->Queue, &SetExtCsdReq->Link);
gBS->RestoreTPL (OldTpl);
SetExtCsdReq->Packet.SdMmcCmdBlk = &SetExtCsdReq->SdMmcCmdBlk;
SetExtCsdReq->Packet.SdMmcStatusBlk = &SetExtCsdReq->SdMmcStatusBlk;
SetExtCsdReq->Packet.Timeout = EMMC_GENERIC_TIMEOUT;
SetExtCsdReq->SdMmcCmdBlk.CommandIndex = EMMC_SWITCH;
SetExtCsdReq->SdMmcCmdBlk.CommandType = SdMmcCommandTypeAc;
SetExtCsdReq->SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1b;
//
// Write the Value to the field specified by Offset.
//
CommandArgument = (Value << 8) | (Offset << 16) | BIT24 | BIT25;
SetExtCsdReq->SdMmcCmdBlk.CommandArgument = CommandArgument;
SetExtCsdReq->IsEnd = IsEnd;
SetExtCsdReq->Token = Token;
if ((Token != NULL) && (Token->Event != NULL)) {
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
AsyncIoCallback,
SetExtCsdReq,
&SetExtCsdReq->Event
);
if (EFI_ERROR(Status)) {
goto Error;
}
} else {
SetExtCsdReq->Event = NULL;
}
Status = PassThru->PassThru (PassThru, Device->Slot, &SetExtCsdReq->Packet, SetExtCsdReq->Event);
Error:
if ((Token != NULL) && (Token->Event != NULL)) {
//
// For asynchronous operation, only free request and event in error case.
// The request and event will be freed in asynchronous callback for success case.
//
if (EFI_ERROR(Status) && (SetExtCsdReq != NULL)) {
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
RemoveEntryList (&SetExtCsdReq->Link);
gBS->RestoreTPL (OldTpl);
if (SetExtCsdReq->Event != NULL) {
gBS->CloseEvent (SetExtCsdReq->Event);
}
FreePool(SetExtCsdReq);
}
} else {
//
// For synchronous operation, free request whatever the execution result is.
//
if (SetExtCsdReq != NULL) {
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
RemoveEntryList (&SetExtCsdReq->Link);
gBS->RestoreTPL (OldTpl);
FreePool(SetExtCsdReq);
}
}
return Status;
}
/**
Set the number of blocks for a block read/write cmd through sync or async I/O request.
@param[in] Partition A pointer to the EMMC_PARTITION instance.
@param[in] BlockNum The number of blocks for transfer.
@param[in] Token A pointer to the token associated with the transaction.
@param[in] IsEnd A boolean to show whether it's the last cmd in a series of cmds.
This parameter is only meaningful in async I/O request.
@retval EFI_SUCCESS The request is executed successfully.
@retval EFI_OUT_OF_RESOURCES The request could not be executed due to a lack of resources.
@retval Others The request could not be executed successfully.
**/
EFI_STATUS
EmmcSetBlkCount (
IN EMMC_PARTITION *Partition,
IN UINT16 BlockNum,
IN EFI_BLOCK_IO2_TOKEN *Token,
IN BOOLEAN IsEnd
)
{
EFI_STATUS Status;
EMMC_DEVICE *Device;
EMMC_REQUEST *SetBlkCntReq;
EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru;
EFI_TPL OldTpl;
SetBlkCntReq = NULL;
Device = Partition->Device;
PassThru = Device->Private->PassThru;
SetBlkCntReq = AllocateZeroPool(sizeof (EMMC_REQUEST));
if (SetBlkCntReq == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Error;
}
SetBlkCntReq->Signature = EMMC_REQUEST_SIGNATURE;
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
InsertTailList (&Partition->Queue, &SetBlkCntReq->Link);
gBS->RestoreTPL (OldTpl);
SetBlkCntReq->Packet.SdMmcCmdBlk = &SetBlkCntReq->SdMmcCmdBlk;
SetBlkCntReq->Packet.SdMmcStatusBlk = &SetBlkCntReq->SdMmcStatusBlk;
SetBlkCntReq->Packet.Timeout = EMMC_GENERIC_TIMEOUT;
SetBlkCntReq->SdMmcCmdBlk.CommandIndex = EMMC_SET_BLOCK_COUNT;
SetBlkCntReq->SdMmcCmdBlk.CommandType = SdMmcCommandTypeAc;
SetBlkCntReq->SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
SetBlkCntReq->SdMmcCmdBlk.CommandArgument = BlockNum;
SetBlkCntReq->IsEnd = IsEnd;
SetBlkCntReq->Token = Token;
if ((Token != NULL) && (Token->Event != NULL)) {
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
AsyncIoCallback,
SetBlkCntReq,
&SetBlkCntReq->Event
);
if (EFI_ERROR(Status)) {
goto Error;
}
} else {
SetBlkCntReq->Event = NULL;
}
Status = PassThru->PassThru (PassThru, Device->Slot, &SetBlkCntReq->Packet, SetBlkCntReq->Event);
Error:
if ((Token != NULL) && (Token->Event != NULL)) {
//
// For asynchronous operation, only free request and event in error case.
// The request and event will be freed in asynchronous callback for success case.
//
if (EFI_ERROR(Status) && (SetBlkCntReq != NULL)) {
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
RemoveEntryList (&SetBlkCntReq->Link);
gBS->RestoreTPL (OldTpl);
if (SetBlkCntReq->Event != NULL) {
gBS->CloseEvent (SetBlkCntReq->Event);
}
FreePool(SetBlkCntReq);
}
} else {
//
// For synchronous operation, free request whatever the execution result is.
//
if (SetBlkCntReq != NULL) {
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
RemoveEntryList (&SetBlkCntReq->Link);
gBS->RestoreTPL (OldTpl);
FreePool(SetBlkCntReq);
}
}
return Status;
}
/**
Read blocks through security protocol cmds with the way of sync or async I/O request.
@param[in] Partition A pointer to the EMMC_PARTITION instance.
@param[in] SecurityProtocolId The value of the "Security Protocol" parameter of
the security protocol command to be sent.
@param[in] SecurityProtocolSpecificData The value of the "Security Protocol Specific" parameter
of the security protocol command to be sent.
@param[in] PayloadBufferSize Size in bytes of the payload data buffer.
@param[out] PayloadBuffer A pointer to a destination buffer to store the security
protocol command specific payload data for the security
protocol command. The caller is responsible for having
either implicit or explicit ownership of the buffer.
@param[in] IsRead Indicates it is a read or write operation.
@param[in] Timeout The timeout value, in 100ns units.
@param[in] Token A pointer to the token associated with the transaction.
@param[in] IsEnd A boolean to show whether it's the last cmd in a series of cmds.
This parameter is only meaningful in async I/O request.
@retval EFI_SUCCESS The request is executed successfully.
@retval EFI_OUT_OF_RESOURCES The request could not be executed due to a lack of resources.
@retval Others The request could not be executed successfully.
**/
EFI_STATUS
EmmcProtocolInOut (
IN EMMC_PARTITION *Partition,
IN UINT8 SecurityProtocol,
IN UINT16 SecurityProtocolSpecificData,
IN UINTN PayloadBufferSize,
OUT VOID *PayloadBuffer,
IN BOOLEAN IsRead,
IN UINT64 Timeout,
IN EFI_BLOCK_IO2_TOKEN *Token,
IN BOOLEAN IsEnd
)
{
EFI_STATUS Status;
EMMC_DEVICE *Device;
EMMC_REQUEST *ProtocolReq;
EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru;
EFI_TPL OldTpl;
ProtocolReq = NULL;
Device = Partition->Device;
PassThru = Device->Private->PassThru;
ProtocolReq = AllocateZeroPool(sizeof (EMMC_REQUEST));
if (ProtocolReq == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Error;
}
ProtocolReq->Signature = EMMC_REQUEST_SIGNATURE;
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
InsertTailList (&Partition->Queue, &ProtocolReq->Link);
gBS->RestoreTPL (OldTpl);
ProtocolReq->Packet.SdMmcCmdBlk = &ProtocolReq->SdMmcCmdBlk;
ProtocolReq->Packet.SdMmcStatusBlk = &ProtocolReq->SdMmcStatusBlk;
if (IsRead) {
ProtocolReq->Packet.InDataBuffer = PayloadBuffer;
ProtocolReq->Packet.InTransferLength = (UINT32)PayloadBufferSize;
ProtocolReq->SdMmcCmdBlk.CommandIndex = EMMC_PROTOCOL_RD;
ProtocolReq->SdMmcCmdBlk.CommandType = SdMmcCommandTypeAdtc;
ProtocolReq->SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
} else {
ProtocolReq->Packet.OutDataBuffer = PayloadBuffer;
ProtocolReq->Packet.OutTransferLength = (UINT32)PayloadBufferSize;
ProtocolReq->SdMmcCmdBlk.CommandIndex = EMMC_PROTOCOL_WR;
ProtocolReq->SdMmcCmdBlk.CommandType = SdMmcCommandTypeAdtc;
ProtocolReq->SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
}
ProtocolReq->SdMmcCmdBlk.CommandArgument = (SecurityProtocol << 8) | (SecurityProtocolSpecificData << 16);
//
// Convert to 1 microsecond unit.
//
ProtocolReq->Packet.Timeout = DivU64x32 (Timeout, 10) + 1;
ProtocolReq->IsEnd = IsEnd;
ProtocolReq->Token = Token;
if ((Token != NULL) && (Token->Event != NULL)) {
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
AsyncIoCallback,
ProtocolReq,
&ProtocolReq->Event
);
if (EFI_ERROR(Status)) {
goto Error;
}
} else {
ProtocolReq->Event = NULL;
}
Status = PassThru->PassThru (PassThru, Device->Slot, &ProtocolReq->Packet, ProtocolReq->Event);
Error:
if ((Token != NULL) && (Token->Event != NULL)) {
//
// For asynchronous operation, only free request and event in error case.
// The request and event will be freed in asynchronous callback for success case.
//
if (EFI_ERROR(Status) && (ProtocolReq != NULL)) {
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
RemoveEntryList (&ProtocolReq->Link);
gBS->RestoreTPL (OldTpl);
if (ProtocolReq->Event != NULL) {
gBS->CloseEvent (ProtocolReq->Event);
}
FreePool(ProtocolReq);
}
} else {
//
// For synchronous operation, free request whatever the execution result is.
//
if (ProtocolReq != NULL) {
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
RemoveEntryList (&ProtocolReq->Link);
gBS->RestoreTPL (OldTpl);
FreePool(ProtocolReq);
}
}
return Status;
}
/**
Read/write multiple blocks through sync or async I/O request.
@param[in] Partition A pointer to the EMMC_PARTITION instance.
@param[in] Lba The starting logical block address to be read/written.
The caller is responsible for reading/writing to only
legitimate locations.
@param[in] Buffer A pointer to the destination/source buffer for the data.
@param[in] BufferSize Size of Buffer, must be a multiple of device block size.
@param[in] IsRead Indicates it is a read or write operation.
@param[in] Token A pointer to the token associated with the transaction.
@param[in] IsEnd A boolean to show whether it's the last cmd in a series of cmds.
This parameter is only meaningful in async I/O request.
@retval EFI_SUCCESS The request is executed successfully.
@retval EFI_OUT_OF_RESOURCES The request could not be executed due to a lack of resources.
@retval Others The request could not be executed successfully.
**/
EFI_STATUS
EmmcRwMultiBlocks (
IN EMMC_PARTITION *Partition,
IN EFI_LBA Lba,
IN VOID *Buffer,
IN UINTN BufferSize,
IN BOOLEAN IsRead,
IN EFI_BLOCK_IO2_TOKEN *Token,
IN BOOLEAN IsEnd
)
{
EFI_STATUS Status;
EMMC_DEVICE *Device;
EMMC_REQUEST *RwMultiBlkReq;
EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru;
EFI_TPL OldTpl;
RwMultiBlkReq = NULL;
Device = Partition->Device;
PassThru = Device->Private->PassThru;
RwMultiBlkReq = AllocateZeroPool(sizeof (EMMC_REQUEST));
if (RwMultiBlkReq == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Error;
}
RwMultiBlkReq->Signature = EMMC_REQUEST_SIGNATURE;
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
InsertTailList (&Partition->Queue, &RwMultiBlkReq->Link);
gBS->RestoreTPL (OldTpl);
RwMultiBlkReq->Packet.SdMmcCmdBlk = &RwMultiBlkReq->SdMmcCmdBlk;
RwMultiBlkReq->Packet.SdMmcStatusBlk = &RwMultiBlkReq->SdMmcStatusBlk;
//
// Calculate timeout value through the below formula.
// Timeout = (transfer size) / (2MB/s).
// Taking 2MB/s as divisor is because it's nearest to the eMMC lowest
// transfer speed (2.4MB/s).
// Refer to eMMC 5.0 spec section 6.9.1 for details.
//
RwMultiBlkReq->Packet.Timeout = (BufferSize / (2 * 1024 * 1024) + 1) * 1000 * 1000;
if (IsRead) {
RwMultiBlkReq->Packet.InDataBuffer = Buffer;
RwMultiBlkReq->Packet.InTransferLength = (UINT32)BufferSize;
RwMultiBlkReq->SdMmcCmdBlk.CommandIndex = EMMC_READ_MULTIPLE_BLOCK;
RwMultiBlkReq->SdMmcCmdBlk.CommandType = SdMmcCommandTypeAdtc;
RwMultiBlkReq->SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
} else {
RwMultiBlkReq->Packet.OutDataBuffer = Buffer;
RwMultiBlkReq->Packet.OutTransferLength = (UINT32)BufferSize;
RwMultiBlkReq->SdMmcCmdBlk.CommandIndex = EMMC_WRITE_MULTIPLE_BLOCK;
RwMultiBlkReq->SdMmcCmdBlk.CommandType = SdMmcCommandTypeAdtc;
RwMultiBlkReq->SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
}
if (Partition->Device->SectorAddressing) {
RwMultiBlkReq->SdMmcCmdBlk.CommandArgument = (UINT32)Lba;
} else {
RwMultiBlkReq->SdMmcCmdBlk.CommandArgument = (UINT32)MultU64x32 (Lba, Partition->BlockMedia.BlockSize);
}
RwMultiBlkReq->IsEnd = IsEnd;
RwMultiBlkReq->Token = Token;
if ((Token != NULL) && (Token->Event != NULL)) {
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
AsyncIoCallback,
RwMultiBlkReq,
&RwMultiBlkReq->Event
);
if (EFI_ERROR(Status)) {
goto Error;
}
} else {
RwMultiBlkReq->Event = NULL;
}
Status = PassThru->PassThru (PassThru, Device->Slot, &RwMultiBlkReq->Packet, RwMultiBlkReq->Event);
Error:
if ((Token != NULL) && (Token->Event != NULL)) {
//
// For asynchronous operation, only free request and event in error case.
// The request and event will be freed in asynchronous callback for success case.
//
if (EFI_ERROR(Status) && (RwMultiBlkReq != NULL)) {
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
RemoveEntryList (&RwMultiBlkReq->Link);
gBS->RestoreTPL (OldTpl);
if (RwMultiBlkReq->Event != NULL) {
gBS->CloseEvent (RwMultiBlkReq->Event);
}
FreePool(RwMultiBlkReq);
}
} else {
//
// For synchronous operation, free request whatever the execution result is.
//
if (RwMultiBlkReq != NULL) {
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
RemoveEntryList (&RwMultiBlkReq->Link);
gBS->RestoreTPL (OldTpl);
FreePool(RwMultiBlkReq);
}
}
return Status;
}
/**
This function transfers data from/to EMMC device.
@param[in] Partition A pointer to the EMMC_PARTITION instance.
@param[in] MediaId The media ID that the read/write request is for.
@param[in] Lba The starting logical block address to be read/written.
The caller is responsible for reading/writing to only
legitimate locations.
@param[in, out] Buffer A pointer to the destination/source buffer for the data.
@param[in] BufferSize Size of Buffer, must be a multiple of device block size.
@param[in] IsRead Indicates it is a read or write operation.
@param[in, out] Token A pointer to the token associated with the transaction.
@retval EFI_SUCCESS The data was read/written correctly to the device.
@retval EFI_WRITE_PROTECTED The device can not be read/written to.
@retval EFI_DEVICE_ERROR The device reported an error while performing the read/write.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHNAGED The MediaId does not matched the current device.
@retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device.
@retval EFI_INVALID_PARAMETER The read/write request contains LBAs that are not valid,
or the buffer is not on proper alignment.
**/
EFI_STATUS
EmmcReadWrite (
IN EMMC_PARTITION *Partition,
IN UINT32 MediaId,
IN EFI_LBA Lba,
IN OUT VOID *Buffer,
IN UINTN BufferSize,
IN BOOLEAN IsRead,
IN OUT EFI_BLOCK_IO2_TOKEN *Token
)
{
EFI_STATUS Status;
EMMC_DEVICE *Device;
EFI_BLOCK_IO_MEDIA *Media;
UINTN BlockSize;
UINTN BlockNum;
UINTN IoAlign;
UINT8 PartitionConfig;
UINTN Remaining;
UINT32 MaxBlock;
BOOLEAN LastRw;
Status = EFI_SUCCESS;
Device = Partition->Device;
Media = &Partition->BlockMedia;
LastRw = FALSE;
if (MediaId != Media->MediaId) {
return EFI_MEDIA_CHANGED;
}
if (!IsRead && Media->ReadOnly) {
return EFI_WRITE_PROTECTED;
}
//
// Check parameters.
//
if (Buffer == NULL) {
return EFI_INVALID_PARAMETER;
}
if (BufferSize == 0) {
if ((Token != NULL) && (Token->Event != NULL)) {
Token->TransactionStatus = EFI_SUCCESS;
gBS->SignalEvent (Token->Event);
}
return EFI_SUCCESS;
}
BlockSize = Media->BlockSize;
if ((BufferSize % BlockSize) != 0) {
return EFI_BAD_BUFFER_SIZE;
}
BlockNum = BufferSize / BlockSize;
if ((Lba + BlockNum - 1) > Media->LastBlock) {
return EFI_INVALID_PARAMETER;
}
IoAlign = Media->IoAlign;
if (IoAlign > 0 && (((UINTN) Buffer & (IoAlign - 1)) != 0)) {
return EFI_INVALID_PARAMETER;
}
if ((Token != NULL) && (Token->Event != NULL)) {
Token->TransactionStatus = EFI_SUCCESS;
}
//
// Check if needs to switch partition access.
//
PartitionConfig = Device->ExtCsd.PartitionConfig;
if ((PartitionConfig & 0x7) != Partition->PartitionType) {
PartitionConfig &= (UINT8)~0x7;
PartitionConfig |= Partition->PartitionType;
Status = EmmcSetExtCsd (Partition, OFFSET_OF (EMMC_EXT_CSD, PartitionConfig), PartitionConfig, Token, FALSE);
if (EFI_ERROR(Status)) {
return Status;
}
Device->ExtCsd.PartitionConfig = PartitionConfig;
}
//
// Start to execute data transfer. The max block number in single cmd is 65535 blocks.
//
Remaining = BlockNum;
MaxBlock = 0xFFFF;
while (Remaining > 0) {
if (Remaining <= MaxBlock) {
BlockNum = Remaining;
LastRw = TRUE;
} else {
BlockNum = MaxBlock;
}
Status = EmmcSetBlkCount (Partition, (UINT16)BlockNum, Token, FALSE);
if (EFI_ERROR(Status)) {
return Status;
}
BufferSize = BlockNum * BlockSize;
Status = EmmcRwMultiBlocks (Partition, Lba, Buffer, BufferSize, IsRead, Token, LastRw);
if (EFI_ERROR(Status)) {
return Status;
}
DEBUG ((DEBUG_BLKIO,
"Emmc%a(): Part %d Lba 0x%x BlkNo 0x%x Event %p with %r\n",
IsRead ? "Read " : "Write", Partition->PartitionType, Lba, BlockNum,
(Token != NULL) ? Token->Event : NULL, Status));
Lba += BlockNum;
Buffer = (UINT8*)Buffer + BufferSize;
Remaining -= BlockNum;
}
return Status;
}
/**
Reset the Block Device.
@param This Indicates a pointer to the calling context.
@param ExtendedVerification Driver may perform diagnostics on reset.
@retval EFI_SUCCESS The device was reset.
@retval EFI_DEVICE_ERROR The device is not functioning properly and could
not be reset.
**/
EFI_STATUS
EFIAPI
EmmcReset (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
{
EFI_STATUS Status;
EMMC_PARTITION *Partition;
EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru;
Partition = EMMC_PARTITION_DATA_FROM_BLKIO (This);
PassThru = Partition->Device->Private->PassThru;
Status = PassThru->ResetDevice (PassThru, Partition->Device->Slot);
if (EFI_ERROR(Status)) {
Status = EFI_DEVICE_ERROR;
}
return Status;
}
/**
Read BufferSize bytes from Lba into Buffer.
@param This Indicates a pointer to the calling context.
@param MediaId Id of the media, changes every time the media is replaced.
@param Lba The starting Logical Block Address to read from
@param BufferSize Size of Buffer, must be a multiple of device block size.
@param Buffer A pointer to the destination buffer for the data. The caller is
responsible for either having implicit or explicit ownership of the buffer.
@retval EFI_SUCCESS The data was read correctly from the device.
@retval EFI_DEVICE_ERROR The device reported an error while performing the read.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHANGED The MediaId does not matched the current device.
@retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device.
@retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,
or the buffer is not on proper alignment.
**/
EFI_STATUS
EFIAPI
EmmcReadBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN UINT32 MediaId,
IN EFI_LBA Lba,
IN UINTN BufferSize,
OUT VOID *Buffer
)
{
EFI_STATUS Status;
EMMC_PARTITION *Partition;
Partition = EMMC_PARTITION_DATA_FROM_BLKIO (This);
Status = EmmcReadWrite (Partition, MediaId, Lba, Buffer, BufferSize, TRUE, NULL);
return Status;
}
/**
Write BufferSize bytes from Lba into Buffer.
@param This Indicates a pointer to the calling context.
@param MediaId The media ID that the write request is for.
@param Lba The starting logical block address to be written. The caller is
responsible for writing to only legitimate locations.
@param BufferSize Size of Buffer, must be a multiple of device block size.
@param Buffer A pointer to the source buffer for the data.
@retval EFI_SUCCESS The data was written correctly to the device.
@retval EFI_WRITE_PROTECTED The device can not be written to.
@retval EFI_DEVICE_ERROR The device reported an error while performing the write.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHNAGED The MediaId does not matched the current device.
@retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device.
@retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,
or the buffer is not on proper alignment.
**/
EFI_STATUS
EFIAPI
EmmcWriteBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN UINT32 MediaId,
IN EFI_LBA Lba,
IN UINTN BufferSize,
IN VOID *Buffer
)
{
EFI_STATUS Status;
EMMC_PARTITION *Partition;
Partition = EMMC_PARTITION_DATA_FROM_BLKIO (This);
Status = EmmcReadWrite (Partition, MediaId, Lba, Buffer, BufferSize, FALSE, NULL);
return Status;
}
/**
Flush the Block Device.
@param This Indicates a pointer to the calling context.
@retval EFI_SUCCESS All outstanding data was written to the device
@retval EFI_DEVICE_ERROR The device reported an error while writing back the data
@retval EFI_NO_MEDIA There is no media in the device.
**/
EFI_STATUS
EFIAPI
EmmcFlushBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This
)
{
//
// return directly
//
return EFI_SUCCESS;
}
/**
Reset the Block Device.
@param[in] This Indicates a pointer to the calling context.
@param[in] ExtendedVerification Driver may perform diagnostics on reset.
@retval EFI_SUCCESS The device was reset.
@retval EFI_DEVICE_ERROR The device is not functioning properly and could
not be reset.
**/
EFI_STATUS
EFIAPI
EmmcResetEx (
IN EFI_BLOCK_IO2_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
{
EMMC_PARTITION *Partition;
LIST_ENTRY *Link;
LIST_ENTRY *NextLink;
EMMC_REQUEST *Request;
EFI_TPL OldTpl;
Partition = EMMC_PARTITION_DATA_FROM_BLKIO2 (This);
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
for (Link = GetFirstNode (&Partition->Queue);
!IsNull (&Partition->Queue, Link);
Link = NextLink) {
NextLink = GetNextNode (&Partition->Queue, Link);
RemoveEntryList (Link);
Request = EMMC_REQUEST_FROM_LINK (Link);
gBS->CloseEvent (Request->Event);
Request->Token->TransactionStatus = EFI_ABORTED;
if (Request->IsEnd) {
gBS->SignalEvent (Request->Token->Event);
}
FreePool(Request);
}
gBS->RestoreTPL (OldTpl);
return EFI_SUCCESS;
}
/**
Read BufferSize bytes from Lba into Buffer.
@param[in] This Indicates a pointer to the calling context.
@param[in] MediaId Id of the media, changes every time the media is replaced.
@param[in] Lba The starting Logical Block Address to read from.
@param[in, out] Token A pointer to the token associated with the transaction.
@param[in] BufferSize Size of Buffer, must be a multiple of device block size.
@param[out] Buffer A pointer to the destination buffer for the data. The caller is
responsible for either having implicit or explicit ownership of the buffer.
@retval EFI_SUCCESS The read request was queued if Event is not NULL.
The data was read correctly from the device if
the Event is NULL.
@retval EFI_DEVICE_ERROR The device reported an error while performing
the read.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the
intrinsic block size of the device.
@retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,
or the buffer is not on proper alignment.
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack
of resources.
**/
EFI_STATUS
EFIAPI
EmmcReadBlocksEx (
IN EFI_BLOCK_IO2_PROTOCOL *This,
IN UINT32 MediaId,
IN EFI_LBA Lba,
IN OUT EFI_BLOCK_IO2_TOKEN *Token,
IN UINTN BufferSize,
OUT VOID *Buffer
)
{
EFI_STATUS Status;
EMMC_PARTITION *Partition;
Partition = EMMC_PARTITION_DATA_FROM_BLKIO2 (This);
Status = EmmcReadWrite (Partition, MediaId, Lba, Buffer, BufferSize, TRUE, Token);
return Status;
}
/**
Write BufferSize bytes from Lba into Buffer.
@param[in] This Indicates a pointer to the calling context.
@param[in] MediaId The media ID that the write request is for.
@param[in] Lba The starting logical block address to be written. The
caller is responsible for writing to only legitimate
locations.
@param[in, out] Token A pointer to the token associated with the transaction.
@param[in] BufferSize Size of Buffer, must be a multiple of device block size.
@param[in] Buffer A pointer to the source buffer for the data.
@retval EFI_SUCCESS The data was written correctly to the device.
@retval EFI_WRITE_PROTECTED The device can not be written to.
@retval EFI_DEVICE_ERROR The device reported an error while performing the write.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHNAGED The MediaId does not matched the current device.
@retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device.
@retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,
or the buffer is not on proper alignment.
**/
EFI_STATUS
EFIAPI
EmmcWriteBlocksEx (
IN EFI_BLOCK_IO2_PROTOCOL *This,
IN UINT32 MediaId,
IN EFI_LBA Lba,
IN OUT EFI_BLOCK_IO2_TOKEN *Token,
IN UINTN BufferSize,
IN VOID *Buffer
)
{
EFI_STATUS Status;
EMMC_PARTITION *Partition;
Partition = EMMC_PARTITION_DATA_FROM_BLKIO2 (This);
Status = EmmcReadWrite (Partition, MediaId, Lba, Buffer, BufferSize, FALSE, Token);
return Status;
}
/**
Flush the Block Device.
@param[in] This Indicates a pointer to the calling context.
@param[in, out] Token A pointer to the token associated with the transaction.
@retval EFI_SUCCESS All outstanding data was written to the device
@retval EFI_DEVICE_ERROR The device reported an error while writing back the data
@retval EFI_NO_MEDIA There is no media in the device.
**/
EFI_STATUS
EFIAPI
EmmcFlushBlocksEx (
IN EFI_BLOCK_IO2_PROTOCOL *This,
IN OUT EFI_BLOCK_IO2_TOKEN *Token
)
{
//
// Signal event and return directly.
//
if (Token != NULL && Token->Event != NULL) {
Token->TransactionStatus = EFI_SUCCESS;
gBS->SignalEvent (Token->Event);
}
return EFI_SUCCESS;
}
/**
Send a security protocol command to a device that receives data and/or the result
of one or more commands sent by SendData.
The ReceiveData function sends a security protocol command to the given MediaId.
The security protocol command sent is defined by SecurityProtocolId and contains
the security protocol specific data SecurityProtocolSpecificData. The function
returns the data from the security protocol command in PayloadBuffer.
For devices supporting the SCSI command set, the security protocol command is sent
using the SECURITY PROTOCOL IN command defined in SPC-4.
For devices supporting the ATA command set, the security protocol command is sent
using one of the TRUSTED RECEIVE commands defined in ATA8-ACS if PayloadBufferSize
is non-zero.
If the PayloadBufferSize is zero, the security protocol command is sent using the
Trusted Non-Data command defined in ATA8-ACS.
If PayloadBufferSize is too small to store the available data from the security
protocol command, the function shall copy PayloadBufferSize bytes into the
PayloadBuffer and return EFI_WARN_BUFFER_TOO_SMALL.
If PayloadBuffer or PayloadTransferSize is NULL and PayloadBufferSize is non-zero,
the function shall return EFI_INVALID_PARAMETER.
If the given MediaId does not support security protocol commands, the function shall
return EFI_UNSUPPORTED. If there is no media in the device, the function returns
EFI_NO_MEDIA. If the MediaId is not the ID for the current media in the device,
the function returns EFI_MEDIA_CHANGED.
If the security protocol fails to complete within the Timeout period, the function
shall return EFI_TIMEOUT.
If the security protocol command completes without an error, the function shall
return EFI_SUCCESS. If the security protocol command completes with an error, the
function shall return EFI_DEVICE_ERROR.
@param[in] This Indicates a pointer to the calling context.
@param[in] MediaId ID of the medium to receive data from.
@param[in] Timeout The timeout, in 100ns units, to use for the execution
of the security protocol command. A Timeout value of 0
means that this function will wait indefinitely for the
security protocol command to execute. If Timeout is greater
than zero, then this function will return EFI_TIMEOUT
if the time required to execute the receive data command
is greater than Timeout.
@param[in] SecurityProtocolId The value of the "Security Protocol" parameter of
the security protocol command to be sent.
@param[in] SecurityProtocolSpecificData The value of the "Security Protocol Specific" parameter
of the security protocol command to be sent.
@param[in] PayloadBufferSize Size in bytes of the payload data buffer.
@param[out] PayloadBuffer A pointer to a destination buffer to store the security
protocol command specific payload data for the security
protocol command. The caller is responsible for having
either implicit or explicit ownership of the buffer.
@param[out] PayloadTransferSize A pointer to a buffer to store the size in bytes of the
data written to the payload data buffer.
@param[in] IsRead Indicates it is a read or write operation.
@retval EFI_SUCCESS The security protocol command completed successfully.
@retval EFI_WARN_BUFFER_TOO_SMALL The PayloadBufferSize was too small to store the available
data from the device. The PayloadBuffer contains the truncated data.
@retval EFI_UNSUPPORTED The given MediaId does not support security protocol commands.
@retval EFI_DEVICE_ERROR The security protocol command completed with an error.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
@retval EFI_INVALID_PARAMETER The PayloadBuffer or PayloadTransferSize is NULL and
PayloadBufferSize is non-zero.
@retval EFI_TIMEOUT A timeout occurred while waiting for the security
protocol command to execute.
**/
EFI_STATUS
EFIAPI
EmmcSecurityProtocolInOut (
IN EFI_STORAGE_SECURITY_COMMAND_PROTOCOL *This,
IN UINT32 MediaId,
IN UINT64 Timeout,
IN UINT8 SecurityProtocolId,
IN UINT16 SecurityProtocolSpecificData,
IN UINTN PayloadBufferSize,
OUT VOID *PayloadBuffer,
OUT UINTN *PayloadTransferSize,
IN BOOLEAN IsRead
)
{
EFI_STATUS Status;
EMMC_PARTITION *Partition;
EMMC_DEVICE *Device;
EFI_BLOCK_IO_MEDIA *Media;
UINTN BlockSize;
UINTN BlockNum;
UINTN IoAlign;
UINTN Remaining;
UINT32 MaxBlock;
UINT8 PartitionConfig;
Status = EFI_SUCCESS;
Partition = EMMC_PARTITION_DATA_FROM_SSP (This);
Device = Partition->Device;
Media = &Partition->BlockMedia;
if (PayloadTransferSize != NULL) {
*PayloadTransferSize = 0;
}
if ((PayloadBuffer == NULL) && (PayloadBufferSize != 0)) {
return EFI_INVALID_PARAMETER;
}
if (MediaId != Media->MediaId) {
return EFI_MEDIA_CHANGED;
}
if (PayloadBufferSize == 0) {
return EFI_SUCCESS;
}
BlockSize = Media->BlockSize;
if ((PayloadBufferSize % BlockSize) != 0) {
return EFI_BAD_BUFFER_SIZE;
}
BlockNum = PayloadBufferSize / BlockSize;
IoAlign = Media->IoAlign;
if (IoAlign > 0 && (((UINTN) PayloadBuffer & (IoAlign - 1)) != 0)) {
return EFI_INVALID_PARAMETER;
}
//
// Security protocol interface is synchronous transfer.
// Waiting for async I/O list to be empty before any operation.
//
while (!IsListEmpty (&Partition->Queue));
//
// Check if needs to switch partition access.
//
PartitionConfig = Device->ExtCsd.PartitionConfig;
if ((PartitionConfig & 0x7) != Partition->PartitionType) {
PartitionConfig &= (UINT8)~0x7;
PartitionConfig |= Partition->PartitionType;
Status = EmmcSetExtCsd (Partition, OFFSET_OF (EMMC_EXT_CSD, PartitionConfig), PartitionConfig, NULL, FALSE);
if (EFI_ERROR(Status)) {
return Status;
}
Device->ExtCsd.PartitionConfig = PartitionConfig;
}
//
// Start to execute data transfer. The max block number in single cmd is 65535 blocks.
//
Remaining = BlockNum;
MaxBlock = 0xFFFF;
while (Remaining > 0) {
if (Remaining <= MaxBlock) {
BlockNum = Remaining;
} else {
BlockNum = MaxBlock;
}
Status = EmmcSetBlkCount (Partition, (UINT16)BlockNum, NULL, FALSE);
if (EFI_ERROR(Status)) {
return Status;
}
PayloadBufferSize = BlockNum * BlockSize;
Status = EmmcProtocolInOut (Partition, SecurityProtocolId, SecurityProtocolSpecificData, PayloadBufferSize, PayloadBuffer, IsRead, Timeout, NULL, FALSE);
if (EFI_ERROR(Status)) {
return Status;
}
PayloadBuffer = (UINT8*)PayloadBuffer + PayloadBufferSize;
Remaining -= BlockNum;
if (PayloadTransferSize != NULL) {
*PayloadTransferSize += PayloadBufferSize;
}
}
return Status;
}
/**
Send a security protocol command to a device that receives data and/or the result
of one or more commands sent by SendData.
The ReceiveData function sends a security protocol command to the given MediaId.
The security protocol command sent is defined by SecurityProtocolId and contains
the security protocol specific data SecurityProtocolSpecificData. The function
returns the data from the security protocol command in PayloadBuffer.
For devices supporting the SCSI command set, the security protocol command is sent
using the SECURITY PROTOCOL IN command defined in SPC-4.
For devices supporting the ATA command set, the security protocol command is sent
using one of the TRUSTED RECEIVE commands defined in ATA8-ACS if PayloadBufferSize
is non-zero.
If the PayloadBufferSize is zero, the security protocol command is sent using the
Trusted Non-Data command defined in ATA8-ACS.
If PayloadBufferSize is too small to store the available data from the security
protocol command, the function shall copy PayloadBufferSize bytes into the
PayloadBuffer and return EFI_WARN_BUFFER_TOO_SMALL.
If PayloadBuffer or PayloadTransferSize is NULL and PayloadBufferSize is non-zero,
the function shall return EFI_INVALID_PARAMETER.
If the given MediaId does not support security protocol commands, the function shall
return EFI_UNSUPPORTED. If there is no media in the device, the function returns
EFI_NO_MEDIA. If the MediaId is not the ID for the current media in the device,
the function returns EFI_MEDIA_CHANGED.
If the security protocol fails to complete within the Timeout period, the function
shall return EFI_TIMEOUT.
If the security protocol command completes without an error, the function shall
return EFI_SUCCESS. If the security protocol command completes with an error, the
function shall return EFI_DEVICE_ERROR.
@param This Indicates a pointer to the calling context.
@param MediaId ID of the medium to receive data from.
@param Timeout The timeout, in 100ns units, to use for the execution
of the security protocol command. A Timeout value of 0
means that this function will wait indefinitely for the
security protocol command to execute. If Timeout is greater
than zero, then this function will return EFI_TIMEOUT
if the time required to execute the receive data command
is greater than Timeout.
@param SecurityProtocolId The value of the "Security Protocol" parameter of
the security protocol command to be sent.
@param SecurityProtocolSpecificData The value of the "Security Protocol Specific" parameter
of the security protocol command to be sent.
@param PayloadBufferSize Size in bytes of the payload data buffer.
@param PayloadBuffer A pointer to a destination buffer to store the security
protocol command specific payload data for the security
protocol command. The caller is responsible for having
either implicit or explicit ownership of the buffer.
@param PayloadTransferSize A pointer to a buffer to store the size in bytes of the
data written to the payload data buffer.
@retval EFI_SUCCESS The security protocol command completed successfully.
@retval EFI_WARN_BUFFER_TOO_SMALL The PayloadBufferSize was too small to store the available
data from the device. The PayloadBuffer contains the truncated data.
@retval EFI_UNSUPPORTED The given MediaId does not support security protocol commands.
@retval EFI_DEVICE_ERROR The security protocol command completed with an error.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
@retval EFI_INVALID_PARAMETER The PayloadBuffer or PayloadTransferSize is NULL and
PayloadBufferSize is non-zero.
@retval EFI_TIMEOUT A timeout occurred while waiting for the security
protocol command to execute.
**/
EFI_STATUS
EFIAPI
EmmcSecurityProtocolIn (
IN EFI_STORAGE_SECURITY_COMMAND_PROTOCOL *This,
IN UINT32 MediaId,
IN UINT64 Timeout,
IN UINT8 SecurityProtocolId,
IN UINT16 SecurityProtocolSpecificData,
IN UINTN PayloadBufferSize,
OUT VOID *PayloadBuffer,
OUT UINTN *PayloadTransferSize
)
{
EFI_STATUS Status;
if ((PayloadTransferSize == NULL) && PayloadBufferSize != 0) {
return EFI_INVALID_PARAMETER;
}
Status = EmmcSecurityProtocolInOut (
This,
MediaId,
Timeout,
SecurityProtocolId,
SecurityProtocolSpecificData,
PayloadBufferSize,
PayloadBuffer,
PayloadTransferSize,
TRUE
);
return Status;
}
/**
Send a security protocol command to a device.
The SendData function sends a security protocol command containing the payload
PayloadBuffer to the given MediaId. The security protocol command sent is
defined by SecurityProtocolId and contains the security protocol specific data
SecurityProtocolSpecificData. If the underlying protocol command requires a
specific padding for the command payload, the SendData function shall add padding
bytes to the command payload to satisfy the padding requirements.
For devices supporting the SCSI command set, the security protocol command is sent
using the SECURITY PROTOCOL OUT command defined in SPC-4.
For devices supporting the ATA command set, the security protocol command is sent
using one of the TRUSTED SEND commands defined in ATA8-ACS if PayloadBufferSize
is non-zero. If the PayloadBufferSize is zero, the security protocol command is
sent using the Trusted Non-Data command defined in ATA8-ACS.
If PayloadBuffer is NULL and PayloadBufferSize is non-zero, the function shall
return EFI_INVALID_PARAMETER.
If the given MediaId does not support security protocol commands, the function
shall return EFI_UNSUPPORTED. If there is no media in the device, the function
returns EFI_NO_MEDIA. If the MediaId is not the ID for the current media in the
device, the function returns EFI_MEDIA_CHANGED.
If the security protocol fails to complete within the Timeout period, the function
shall return EFI_TIMEOUT.
If the security protocol command completes without an error, the function shall return
EFI_SUCCESS. If the security protocol command completes with an error, the function
shall return EFI_DEVICE_ERROR.
@param This Indicates a pointer to the calling context.
@param MediaId ID of the medium to receive data from.
@param Timeout The timeout, in 100ns units, to use for the execution
of the security protocol command. A Timeout value of 0
means that this function will wait indefinitely for the
security protocol command to execute. If Timeout is greater
than zero, then this function will return EFI_TIMEOUT
if the time required to execute the receive data command
is greater than Timeout.
@param SecurityProtocolId The value of the "Security Protocol" parameter of
the security protocol command to be sent.
@param SecurityProtocolSpecificData The value of the "Security Protocol Specific" parameter
of the security protocol command to be sent.
@param PayloadBufferSize Size in bytes of the payload data buffer.
@param PayloadBuffer A pointer to a destination buffer to store the security
protocol command specific payload data for the security
protocol command.
@retval EFI_SUCCESS The security protocol command completed successfully.
@retval EFI_UNSUPPORTED The given MediaId does not support security protocol commands.
@retval EFI_DEVICE_ERROR The security protocol command completed with an error.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
@retval EFI_INVALID_PARAMETER The PayloadBuffer is NULL and PayloadBufferSize is non-zero.
@retval EFI_TIMEOUT A timeout occurred while waiting for the security
protocol command to execute.
**/
EFI_STATUS
EFIAPI
EmmcSecurityProtocolOut (
IN EFI_STORAGE_SECURITY_COMMAND_PROTOCOL *This,
IN UINT32 MediaId,
IN UINT64 Timeout,
IN UINT8 SecurityProtocolId,
IN UINT16 SecurityProtocolSpecificData,
IN UINTN PayloadBufferSize,
IN VOID *PayloadBuffer
)
{
EFI_STATUS Status;
Status = EmmcSecurityProtocolInOut (
This,
MediaId,
Timeout,
SecurityProtocolId,
SecurityProtocolSpecificData,
PayloadBufferSize,
PayloadBuffer,
NULL,
FALSE
);
return Status;
}
/**
Set the erase start address through sync or async I/O request.
@param[in] Partition A pointer to the EMMC_PARTITION instance.
@param[in] StartLba The starting logical block address to be erased.
@param[in] Token A pointer to the token associated with the transaction.
@param[in] IsEnd A boolean to show whether it's the last cmd in a series of cmds.
This parameter is only meaningful in async I/O request.
@retval EFI_SUCCESS The request is executed successfully.
@retval EFI_OUT_OF_RESOURCES The request could not be executed due to a lack of resources.
@retval Others The request could not be executed successfully.
**/
EFI_STATUS
EmmcEraseBlockStart (
IN EMMC_PARTITION *Partition,
IN EFI_LBA StartLba,
IN EFI_BLOCK_IO2_TOKEN *Token,
IN BOOLEAN IsEnd
)
{
EFI_STATUS Status;
EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru;
EMMC_DEVICE *Device;
EMMC_REQUEST *EraseBlockStart;
EFI_TPL OldTpl;
EraseBlockStart = NULL;
Device = Partition->Device;
PassThru = Device->Private->PassThru;
EraseBlockStart = AllocateZeroPool(sizeof (EMMC_REQUEST));
if (EraseBlockStart == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Error;
}
EraseBlockStart->Signature = EMMC_REQUEST_SIGNATURE;
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
InsertTailList (&Partition->Queue, &EraseBlockStart->Link);
gBS->RestoreTPL (OldTpl);
EraseBlockStart->Packet.SdMmcCmdBlk = &EraseBlockStart->SdMmcCmdBlk;
EraseBlockStart->Packet.SdMmcStatusBlk = &EraseBlockStart->SdMmcStatusBlk;
EraseBlockStart->Packet.Timeout = EMMC_GENERIC_TIMEOUT;
EraseBlockStart->SdMmcCmdBlk.CommandIndex = EMMC_ERASE_GROUP_START;
EraseBlockStart->SdMmcCmdBlk.CommandType = SdMmcCommandTypeAc;
EraseBlockStart->SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
if (Device->SectorAddressing) {
EraseBlockStart->SdMmcCmdBlk.CommandArgument = (UINT32)StartLba;
} else {
EraseBlockStart->SdMmcCmdBlk.CommandArgument = (UINT32)MultU64x32 (StartLba, Partition->BlockMedia.BlockSize);
}
EraseBlockStart->IsEnd = IsEnd;
EraseBlockStart->Token = Token;
if ((Token != NULL) && (Token->Event != NULL)) {
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
AsyncIoCallback,
EraseBlockStart,
&EraseBlockStart->Event
);
if (EFI_ERROR(Status)) {
goto Error;
}
} else {
EraseBlockStart->Event = NULL;
}
Status = PassThru->PassThru (PassThru, Device->Slot, &EraseBlockStart->Packet, EraseBlockStart->Event);
Error:
if ((Token != NULL) && (Token->Event != NULL)) {
//
// For asynchronous operation, only free request and event in error case.
// The request and event will be freed in asynchronous callback for success case.
//
if (EFI_ERROR(Status) && (EraseBlockStart != NULL)) {
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
RemoveEntryList (&EraseBlockStart->Link);
gBS->RestoreTPL (OldTpl);
if (EraseBlockStart->Event != NULL) {
gBS->CloseEvent (EraseBlockStart->Event);
}
FreePool(EraseBlockStart);
}
} else {
//
// For synchronous operation, free request whatever the execution result is.
//
if (EraseBlockStart != NULL) {
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
RemoveEntryList (&EraseBlockStart->Link);
gBS->RestoreTPL (OldTpl);
FreePool(EraseBlockStart);
}
}
return Status;
}
/**
Set the erase end address through sync or async I/O request.
@param[in] Partition A pointer to the EMMC_PARTITION instance.
@param[in] EndLba The ending logical block address to be erased.
@param[in] Token A pointer to the token associated with the transaction.
@param[in] IsEnd A boolean to show whether it's the last cmd in a series of cmds.
This parameter is only meaningful in async I/O request.
@retval EFI_SUCCESS The request is executed successfully.
@retval EFI_OUT_OF_RESOURCES The request could not be executed due to a lack of resources.
@retval Others The request could not be executed successfully.
**/
EFI_STATUS
EmmcEraseBlockEnd (
IN EMMC_PARTITION *Partition,
IN EFI_LBA EndLba,
IN EFI_BLOCK_IO2_TOKEN *Token,
IN BOOLEAN IsEnd
)
{
EFI_STATUS Status;
EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru;
EMMC_DEVICE *Device;
EMMC_REQUEST *EraseBlockEnd;
EFI_TPL OldTpl;
EraseBlockEnd = NULL;
Device = Partition->Device;
PassThru = Device->Private->PassThru;
EraseBlockEnd = AllocateZeroPool(sizeof (EMMC_REQUEST));
if (EraseBlockEnd == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Error;
}
EraseBlockEnd->Signature = EMMC_REQUEST_SIGNATURE;
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
InsertTailList (&Partition->Queue, &EraseBlockEnd->Link);
gBS->RestoreTPL (OldTpl);
EraseBlockEnd->Packet.SdMmcCmdBlk = &EraseBlockEnd->SdMmcCmdBlk;
EraseBlockEnd->Packet.SdMmcStatusBlk = &EraseBlockEnd->SdMmcStatusBlk;
EraseBlockEnd->Packet.Timeout = EMMC_GENERIC_TIMEOUT;
EraseBlockEnd->SdMmcCmdBlk.CommandIndex = EMMC_ERASE_GROUP_END;
EraseBlockEnd->SdMmcCmdBlk.CommandType = SdMmcCommandTypeAc;
EraseBlockEnd->SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1;
if (Device->SectorAddressing) {
EraseBlockEnd->SdMmcCmdBlk.CommandArgument = (UINT32)EndLba;
} else {
EraseBlockEnd->SdMmcCmdBlk.CommandArgument = (UINT32)MultU64x32 (EndLba, Partition->BlockMedia.BlockSize);
}
EraseBlockEnd->IsEnd = IsEnd;
EraseBlockEnd->Token = Token;
if ((Token != NULL) && (Token->Event != NULL)) {
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
AsyncIoCallback,
EraseBlockEnd,
&EraseBlockEnd->Event
);
if (EFI_ERROR(Status)) {
goto Error;
}
} else {
EraseBlockEnd->Event = NULL;
}
Status = PassThru->PassThru (PassThru, Device->Slot, &EraseBlockEnd->Packet, EraseBlockEnd->Event);
Error:
if ((Token != NULL) && (Token->Event != NULL)) {
//
// For asynchronous operation, only free request and event in error case.
// The request and event will be freed in asynchronous callback for success case.
//
if (EFI_ERROR(Status) && (EraseBlockEnd != NULL)) {
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
RemoveEntryList (&EraseBlockEnd->Link);
gBS->RestoreTPL (OldTpl);
if (EraseBlockEnd->Event != NULL) {
gBS->CloseEvent (EraseBlockEnd->Event);
}
FreePool(EraseBlockEnd);
}
} else {
//
// For synchronous operation, free request whatever the execution result is.
//
if (EraseBlockEnd != NULL) {
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
RemoveEntryList (&EraseBlockEnd->Link);
gBS->RestoreTPL (OldTpl);
FreePool(EraseBlockEnd);
}
}
return Status;
}
/**
Erase specified blocks through sync or async I/O request.
@param[in] Partition A pointer to the EMMC_PARTITION instance.
@param[in] Token A pointer to the token associated with the transaction.
@param[in] IsEnd A boolean to show whether it's the last cmd in a series of cmds.
This parameter is only meaningful in async I/O request.
@retval EFI_SUCCESS The request is executed successfully.
@retval EFI_OUT_OF_RESOURCES The request could not be executed due to a lack of resources.
@retval Others The request could not be executed successfully.
**/
EFI_STATUS
EmmcEraseBlock (
IN EMMC_PARTITION *Partition,
IN EFI_BLOCK_IO2_TOKEN *Token,
IN BOOLEAN IsEnd
)
{
EFI_STATUS Status;
EFI_SD_MMC_PASS_THRU_PROTOCOL *PassThru;
EMMC_DEVICE *Device;
EMMC_REQUEST *EraseBlock;
EFI_TPL OldTpl;
EraseBlock = NULL;
Device = Partition->Device;
PassThru = Device->Private->PassThru;
EraseBlock = AllocateZeroPool(sizeof (EMMC_REQUEST));
if (EraseBlock == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Error;
}
EraseBlock->Signature = EMMC_REQUEST_SIGNATURE;
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
InsertTailList (&Partition->Queue, &EraseBlock->Link);
gBS->RestoreTPL (OldTpl);
EraseBlock->Packet.SdMmcCmdBlk = &EraseBlock->SdMmcCmdBlk;
EraseBlock->Packet.SdMmcStatusBlk = &EraseBlock->SdMmcStatusBlk;
EraseBlock->Packet.Timeout = EMMC_GENERIC_TIMEOUT;
EraseBlock->SdMmcCmdBlk.CommandIndex = EMMC_ERASE;
EraseBlock->SdMmcCmdBlk.CommandType = SdMmcCommandTypeAc;
EraseBlock->SdMmcCmdBlk.ResponseType = SdMmcResponseTypeR1b;
if ((Device->ExtCsd.SecFeatureSupport & BIT4) != 0) {
//
// Perform a Trim operation which applies the erase operation to write blocks
// instead of erase groups. (Spec JESD84-B51, eMMC Electrical Standard 5.1,
// Section 6.6.10 and 6.10.4)
//
EraseBlock->SdMmcCmdBlk.CommandArgument = 1;
}
EraseBlock->IsEnd = IsEnd;
EraseBlock->Token = Token;
if ((Token != NULL) && (Token->Event != NULL)) {
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
AsyncIoCallback,
EraseBlock,
&EraseBlock->Event
);
if (EFI_ERROR(Status)) {
goto Error;
}
} else {
EraseBlock->Event = NULL;
}
Status = PassThru->PassThru (PassThru, Device->Slot, &EraseBlock->Packet, EraseBlock->Event);
Error:
if ((Token != NULL) && (Token->Event != NULL)) {
//
// For asynchronous operation, only free request and event in error case.
// The request and event will be freed in asynchronous callback for success case.
//
if (EFI_ERROR(Status) && (EraseBlock != NULL)) {
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
RemoveEntryList (&EraseBlock->Link);
gBS->RestoreTPL (OldTpl);
if (EraseBlock->Event != NULL) {
gBS->CloseEvent (EraseBlock->Event);
}
FreePool(EraseBlock);
}
} else {
//
// For synchronous operation, free request whatever the execution result is.
//
if (EraseBlock != NULL) {
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
RemoveEntryList (&EraseBlock->Link);
gBS->RestoreTPL (OldTpl);
FreePool(EraseBlock);
}
}
return Status;
}
/**
Write zeros to specified blocks.
@param[in] Partition A pointer to the EMMC_PARTITION instance.
@param[in] StartLba The starting logical block address to write zeros.
@param[in] Size The size in bytes to fill with zeros. This must be a multiple of
the physical block size of the device.
@retval EFI_SUCCESS The request is executed successfully.
@retval EFI_OUT_OF_RESOURCES The request could not be executed due to a lack of resources.
@retval Others The request could not be executed successfully.
**/
EFI_STATUS
EmmcWriteZeros (
IN EMMC_PARTITION *Partition,
IN EFI_LBA StartLba,
IN UINTN Size
)
{
EFI_STATUS Status;
UINT8 *Buffer;
UINT32 MediaId;
Buffer = AllocateZeroPool(Size);
if (Buffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
MediaId = Partition->BlockMedia.MediaId;
Status = EmmcReadWrite (Partition, MediaId, StartLba, Buffer, Size, FALSE, NULL);
FreePool(Buffer);
return Status;
}
/**
Erase a specified number of device blocks.
@param[in] This Indicates a pointer to the calling context.
@param[in] MediaId The media ID that the erase request is for.
@param[in] Lba The starting logical block address to be
erased. The caller is responsible for erasing
only legitimate locations.
@param[in, out] Token A pointer to the token associated with the
transaction.
@param[in] Size The size in bytes to be erased. This must be
a multiple of the physical block size of the
device.
@retval EFI_SUCCESS The erase request was queued if Event is not
NULL. The data was erased correctly to the
device if the Event is NULL.to the device.
@retval EFI_WRITE_PROTECTED The device cannot be erased due to write
protection.
@retval EFI_DEVICE_ERROR The device reported an error while attempting
to perform the erase operation.
@retval EFI_INVALID_PARAMETER The erase request contains LBAs that are not
valid.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
**/
EFI_STATUS
EFIAPI
EmmcEraseBlocks (
IN EFI_ERASE_BLOCK_PROTOCOL *This,
IN UINT32 MediaId,
IN EFI_LBA Lba,
IN OUT EFI_ERASE_BLOCK_TOKEN *Token,
IN UINTN Size
)
{
EFI_STATUS Status;
EFI_BLOCK_IO_MEDIA *Media;
UINTN BlockSize;
UINTN BlockNum;
EFI_LBA FirstLba;
EFI_LBA LastLba;
EFI_LBA StartGroupLba;
EFI_LBA EndGroupLba;
UINT32 EraseGroupSize;
UINT32 Remainder;
UINTN WriteZeroSize;
UINT8 PartitionConfig;
EMMC_PARTITION *Partition;
EMMC_DEVICE *Device;
Status = EFI_SUCCESS;
Partition = EMMC_PARTITION_DATA_FROM_ERASEBLK (This);
Device = Partition->Device;
Media = &Partition->BlockMedia;
if (MediaId != Media->MediaId) {
return EFI_MEDIA_CHANGED;
}
if (Media->ReadOnly) {
return EFI_WRITE_PROTECTED;
}
//
// Check parameters.
//
BlockSize = Media->BlockSize;
if ((Size % BlockSize) != 0) {
return EFI_INVALID_PARAMETER;
}
BlockNum = Size / BlockSize;
if ((Lba + BlockNum - 1) > Media->LastBlock) {
return EFI_INVALID_PARAMETER;
}
if ((Token != NULL) && (Token->Event != NULL)) {
Token->TransactionStatus = EFI_SUCCESS;
}
FirstLba = Lba;
LastLba = Lba + BlockNum - 1;
//
// Check if needs to switch partition access.
//
PartitionConfig = Device->ExtCsd.PartitionConfig;
if ((PartitionConfig & 0x7) != Partition->PartitionType) {
PartitionConfig &= (UINT8)~0x7;
PartitionConfig |= Partition->PartitionType;
Status = EmmcSetExtCsd (Partition, OFFSET_OF (EMMC_EXT_CSD, PartitionConfig), PartitionConfig, (EFI_BLOCK_IO2_TOKEN*)Token, FALSE);
if (EFI_ERROR(Status)) {
return Status;
}
Device->ExtCsd.PartitionConfig = PartitionConfig;
}
if ((Device->ExtCsd.SecFeatureSupport & BIT4) == 0) {
//
// If the Trim operation is not supported by the device, handle the erase
// of blocks that do not form a complete erase group separately.
//
EraseGroupSize = This->EraseLengthGranularity;
DivU64x32Remainder (FirstLba, EraseGroupSize, &Remainder);
StartGroupLba = (Remainder == 0) ? FirstLba : (FirstLba + EraseGroupSize - Remainder);
DivU64x32Remainder (LastLba + 1, EraseGroupSize, &Remainder);
EndGroupLba = LastLba + 1 - Remainder;
//
// If the size to erase is smaller than the erase group size, the whole
// erase operation is performed by writting zeros.
//
if (BlockNum < EraseGroupSize) {
Status = EmmcWriteZeros (Partition, FirstLba, Size);
if (EFI_ERROR(Status)) {
return Status;
}
DEBUG ((
DEBUG_INFO,
"EmmcEraseBlocks(): Lba 0x%x BlkNo 0x%x Event %p with %r\n",
Lba,
BlockNum,
(Token != NULL) ? Token->Event : NULL,
Status
));
if ((Token != NULL) && (Token->Event != NULL)) {
Token->TransactionStatus = EFI_SUCCESS;
gBS->SignalEvent (Token->Event);
}
return EFI_SUCCESS;
}
//
// If the starting LBA to erase is not aligned with the start of an erase
// group, write zeros to erase the data from starting LBA to the end of the
// current erase group.
//
if (StartGroupLba > FirstLba) {
WriteZeroSize = (UINTN)(StartGroupLba - FirstLba) * BlockSize;
Status = EmmcWriteZeros (Partition, FirstLba, WriteZeroSize);
if (EFI_ERROR(Status)) {
return Status;
}
}
//
// If the ending LBA to erase is not aligned with the end of an erase
// group, write zeros to erase the data from the start of the erase group
// to the ending LBA.
//
if (EndGroupLba <= LastLba) {
WriteZeroSize = (UINTN)(LastLba + 1 - EndGroupLba) * BlockSize;
Status = EmmcWriteZeros (Partition, EndGroupLba, WriteZeroSize);
if (EFI_ERROR(Status)) {
return Status;
}
}
//
// Check whether there is erase group to erase.
//
if (EndGroupLba <= StartGroupLba) {
DEBUG ((
DEBUG_INFO,
"EmmcEraseBlocks(): Lba 0x%x BlkNo 0x%x Event %p with %r\n",
Lba,
BlockNum,
(Token != NULL) ? Token->Event : NULL,
Status
));
if ((Token != NULL) && (Token->Event != NULL)) {
Token->TransactionStatus = EFI_SUCCESS;
gBS->SignalEvent (Token->Event);
}
return EFI_SUCCESS;
}
FirstLba = StartGroupLba;
LastLba = EndGroupLba - 1;
}
Status = EmmcEraseBlockStart (Partition, FirstLba, (EFI_BLOCK_IO2_TOKEN*)Token, FALSE);
if (EFI_ERROR(Status)) {
return Status;
}
Status = EmmcEraseBlockEnd (Partition, LastLba, (EFI_BLOCK_IO2_TOKEN*)Token, FALSE);
if (EFI_ERROR(Status)) {
return Status;
}
Status = EmmcEraseBlock (Partition, (EFI_BLOCK_IO2_TOKEN*)Token, TRUE);
if (EFI_ERROR(Status)) {
return Status;
}
DEBUG ((
DEBUG_INFO,
"EmmcEraseBlocks(): Lba 0x%x BlkNo 0x%x Event %p with %r\n",
Lba,
BlockNum,
(Token != NULL) ? Token->Event : NULL,
Status
));
return Status;
}
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