/** @file | |
Copyright (c) 2014 - 2022, Intel Corporation. All rights reserved.<BR> | |
Copyright (c) Microsoft Corporation.<BR> | |
SPDX-License-Identifier: BSD-2-Clause-Patent | |
**/ | |
#include "UfsPassThru.h" | |
// | |
// Template for Ufs Pass Thru private data. | |
// | |
UFS_PASS_THRU_PRIVATE_DATA gUfsPassThruTemplate = { | |
UFS_PASS_THRU_SIG, // Signature | |
NULL, // Handle | |
{ // ExtScsiPassThruMode | |
0xFFFFFFFF, | |
EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL | EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL | EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_NONBLOCKIO, | |
sizeof (UINTN) | |
}, | |
{ // ExtScsiPassThru | |
NULL, | |
UfsPassThruPassThru, | |
UfsPassThruGetNextTargetLun, | |
UfsPassThruBuildDevicePath, | |
UfsPassThruGetTargetLun, | |
UfsPassThruResetChannel, | |
UfsPassThruResetTargetLun, | |
UfsPassThruGetNextTarget | |
}, | |
{ // UfsDevConfig | |
UfsRwUfsDescriptor, | |
UfsRwUfsFlag, | |
UfsRwUfsAttribute | |
}, | |
0, // UfsHostController | |
0, // UfsHcBase | |
{ 0, 0 }, // UfsHcInfo | |
{ NULL, NULL }, // UfsHcDriverInterface | |
0, // TaskTag | |
0, // UtpTrlBase | |
0, // Nutrs | |
0, // TrlMapping | |
0, // UtpTmrlBase | |
0, // Nutmrs | |
0, // TmrlMapping | |
{ // Luns | |
{ | |
UFS_LUN_0, // Ufs Common Lun 0 | |
UFS_LUN_1, // Ufs Common Lun 1 | |
UFS_LUN_2, // Ufs Common Lun 2 | |
UFS_LUN_3, // Ufs Common Lun 3 | |
UFS_LUN_4, // Ufs Common Lun 4 | |
UFS_LUN_5, // Ufs Common Lun 5 | |
UFS_LUN_6, // Ufs Common Lun 6 | |
UFS_LUN_7, // Ufs Common Lun 7 | |
UFS_WLUN_REPORT_LUNS, // Ufs Reports Luns Well Known Lun | |
UFS_WLUN_UFS_DEV, // Ufs Device Well Known Lun | |
UFS_WLUN_BOOT, // Ufs Boot Well Known Lun | |
UFS_WLUN_RPMB // RPMB Well Known Lun | |
}, | |
0x0000, // By default don't expose any Luns. | |
0x0 | |
}, | |
NULL, // TimerEvent | |
{ // Queue | |
NULL, | |
NULL | |
} | |
}; | |
EFI_DRIVER_BINDING_PROTOCOL gUfsPassThruDriverBinding = { | |
UfsPassThruDriverBindingSupported, | |
UfsPassThruDriverBindingStart, | |
UfsPassThruDriverBindingStop, | |
0x10, | |
NULL, | |
NULL | |
}; | |
UFS_DEVICE_PATH mUfsDevicePathTemplate = { | |
{ | |
MESSAGING_DEVICE_PATH, | |
MSG_UFS_DP, | |
{ | |
(UINT8)(sizeof (UFS_DEVICE_PATH)), | |
(UINT8)((sizeof (UFS_DEVICE_PATH)) >> 8) | |
} | |
}, | |
0, | |
0 | |
}; | |
UINT8 mUfsTargetId[TARGET_MAX_BYTES]; | |
GLOBAL_REMOVE_IF_UNREFERENCED EDKII_UFS_HC_PLATFORM_PROTOCOL *mUfsHcPlatform; | |
/** | |
Sends a SCSI Request Packet to a SCSI device that is attached to the SCSI channel. This function | |
supports both blocking I/O and nonblocking I/O. The blocking I/O functionality is required, and the | |
nonblocking I/O functionality is optional. | |
@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. | |
@param Target The Target is an array of size TARGET_MAX_BYTES and it represents | |
the id of the SCSI device to send the SCSI Request Packet. Each | |
transport driver may choose to utilize a subset of this size to suit the needs | |
of transport target representation. For example, a Fibre Channel driver | |
may use only 8 bytes (WWN) to represent an FC target. | |
@param Lun The LUN of the SCSI device to send the SCSI Request Packet. | |
@param Packet A pointer to the SCSI Request Packet to send to the SCSI device | |
specified by Target and Lun. | |
@param Event If nonblocking I/O is not supported then Event is ignored, and blocking | |
I/O is performed. If Event is NULL, then blocking I/O is performed. If | |
Event is not NULL and non blocking I/O is supported, then | |
nonblocking I/O is performed, and Event will be signaled when the | |
SCSI Request Packet completes. | |
@retval EFI_SUCCESS The SCSI Request Packet was sent by the host. For bi-directional | |
commands, InTransferLength bytes were transferred from | |
InDataBuffer. For write and bi-directional commands, | |
OutTransferLength bytes were transferred by | |
OutDataBuffer. | |
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was not executed. The number of bytes that | |
could be transferred is returned in InTransferLength. For write | |
and bi-directional commands, OutTransferLength bytes were | |
transferred by OutDataBuffer. | |
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are too many | |
SCSI Request Packets already queued. The caller may retry again later. | |
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send the SCSI Request | |
Packet. | |
@retval EFI_INVALID_PARAMETER Target, Lun, or the contents of ScsiRequestPacket are invalid. | |
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported | |
by the host adapter. This includes the case of Bi-directional SCSI | |
commands not supported by the implementation. The SCSI Request | |
Packet was not sent, so no additional status information is available. | |
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
UfsPassThruPassThru ( | |
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, | |
IN UINT8 *Target, | |
IN UINT64 Lun, | |
IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet, | |
IN EFI_EVENT Event OPTIONAL | |
) | |
{ | |
EFI_STATUS Status; | |
UFS_PASS_THRU_PRIVATE_DATA *Private; | |
UINT8 UfsLun; | |
UINT16 Index; | |
Private = UFS_PASS_THRU_PRIVATE_DATA_FROM_THIS (This); | |
if ((Packet == NULL) || (Packet->Cdb == NULL)) { | |
return EFI_INVALID_PARAMETER; | |
} | |
// | |
// Don't support variable length CDB | |
// | |
if ((Packet->CdbLength != 6) && (Packet->CdbLength != 10) && | |
(Packet->CdbLength != 12) && (Packet->CdbLength != 16)) | |
{ | |
return EFI_INVALID_PARAMETER; | |
} | |
if ((Packet->SenseDataLength != 0) && (Packet->SenseData == NULL)) { | |
return EFI_INVALID_PARAMETER; | |
} | |
if ((This->Mode->IoAlign > 1) && !ADDRESS_IS_ALIGNED (Packet->InDataBuffer, This->Mode->IoAlign)) { | |
return EFI_INVALID_PARAMETER; | |
} | |
if ((This->Mode->IoAlign > 1) && !ADDRESS_IS_ALIGNED (Packet->OutDataBuffer, This->Mode->IoAlign)) { | |
return EFI_INVALID_PARAMETER; | |
} | |
if ((This->Mode->IoAlign > 1) && !ADDRESS_IS_ALIGNED (Packet->SenseData, This->Mode->IoAlign)) { | |
return EFI_INVALID_PARAMETER; | |
} | |
// | |
// For UFS 2.0 compatible device, 0 is always used to represent the location of the UFS device. | |
// | |
SetMem (mUfsTargetId, TARGET_MAX_BYTES, 0x00); | |
if ((Target == NULL) || (CompareMem (Target, mUfsTargetId, TARGET_MAX_BYTES) != 0)) { | |
return EFI_INVALID_PARAMETER; | |
} | |
// | |
// UFS 2.0 spec Section 10.6.7 - Translation of 8-bit UFS LUN to 64-bit SCSI LUN Address | |
// 0xC1 in the first 8 bits of the 64-bit address indicates a well known LUN address in the SAM SCSI format. | |
// The second 8 bits of the 64-bit address saves the corresponding 8-bit UFS LUN. | |
// | |
if ((UINT8)Lun == UFS_WLUN_PREFIX) { | |
UfsLun = BIT7 | (((UINT8 *)&Lun)[1] & 0xFF); | |
} else if ((UINT8)Lun == 0) { | |
UfsLun = ((UINT8 *)&Lun)[1] & 0xFF; | |
} else { | |
return EFI_INVALID_PARAMETER; | |
} | |
for (Index = 0; Index < UFS_MAX_LUNS; Index++) { | |
if ((Private->Luns.BitMask & (BIT0 << Index)) == 0) { | |
continue; | |
} | |
if (Private->Luns.Lun[Index] == UfsLun) { | |
break; | |
} | |
} | |
if (Index == UFS_MAX_LUNS) { | |
return EFI_INVALID_PARAMETER; | |
} | |
Status = UfsExecScsiCmds (Private, UfsLun, Packet, Event); | |
return Status; | |
} | |
/** | |
Used to retrieve the list of legal Target IDs and LUNs for SCSI devices on a SCSI channel. These | |
can either be the list SCSI devices that are actually present on the SCSI channel, or the list of legal | |
Target Ids and LUNs for the SCSI channel. Regardless, the caller of this function must probe the | |
Target ID and LUN returned to see if a SCSI device is actually present at that location on the SCSI | |
channel. | |
@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. | |
@param Target On input, a pointer to the Target ID (an array of size | |
TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel. | |
On output, a pointer to the Target ID (an array of | |
TARGET_MAX_BYTES) of the next SCSI device present on a SCSI | |
channel. An input value of 0xF(all bytes in the array are 0xF) in the | |
Target array retrieves the Target ID of the first SCSI device present on a | |
SCSI channel. | |
@param Lun On input, a pointer to the LUN of a SCSI device present on the SCSI | |
channel. On output, a pointer to the LUN of the next SCSI device present | |
on a SCSI channel. | |
@retval EFI_SUCCESS The Target ID and LUN of the next SCSI device on the SCSI | |
channel was returned in Target and Lun. | |
@retval EFI_INVALID_PARAMETER Target array is not all 0xF, and Target and Lun were | |
not returned on a previous call to GetNextTargetLun(). | |
@retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
UfsPassThruGetNextTargetLun ( | |
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, | |
IN OUT UINT8 **Target, | |
IN OUT UINT64 *Lun | |
) | |
{ | |
UFS_PASS_THRU_PRIVATE_DATA *Private; | |
UINT8 UfsLun; | |
UINT16 Index; | |
UINT16 Next; | |
Private = UFS_PASS_THRU_PRIVATE_DATA_FROM_THIS (This); | |
if ((Target == NULL) || (Lun == NULL)) { | |
return EFI_INVALID_PARAMETER; | |
} | |
if (*Target == NULL) { | |
return EFI_INVALID_PARAMETER; | |
} | |
UfsLun = 0; | |
SetMem (mUfsTargetId, TARGET_MAX_BYTES, 0xFF); | |
if (CompareMem (*Target, mUfsTargetId, TARGET_MAX_BYTES) == 0) { | |
// | |
// If the array is all 0xFF's, return the first exposed Lun to caller. | |
// | |
SetMem (*Target, TARGET_MAX_BYTES, 0x00); | |
for (Index = 0; Index < UFS_MAX_LUNS; Index++) { | |
if ((Private->Luns.BitMask & (BIT0 << Index)) != 0) { | |
UfsLun = Private->Luns.Lun[Index]; | |
break; | |
} | |
} | |
if (Index != UFS_MAX_LUNS) { | |
*Lun = 0; | |
if ((UfsLun & BIT7) == BIT7) { | |
((UINT8 *)Lun)[0] = UFS_WLUN_PREFIX; | |
((UINT8 *)Lun)[1] = UfsLun & ~BIT7; | |
} else { | |
((UINT8 *)Lun)[1] = UfsLun; | |
} | |
return EFI_SUCCESS; | |
} else { | |
return EFI_NOT_FOUND; | |
} | |
} | |
SetMem (mUfsTargetId, TARGET_MAX_BYTES, 0x00); | |
if (CompareMem (*Target, mUfsTargetId, TARGET_MAX_BYTES) == 0) { | |
if (((UINT8 *)Lun)[0] == UFS_WLUN_PREFIX) { | |
UfsLun = BIT7 | (((UINT8 *)Lun)[1] & 0xFF); | |
} else if (((UINT8 *)Lun)[0] == 0) { | |
UfsLun = ((UINT8 *)Lun)[1] & 0xFF; | |
} else { | |
return EFI_NOT_FOUND; | |
} | |
for (Index = 0; Index < UFS_MAX_LUNS; Index++) { | |
if ((Private->Luns.BitMask & (BIT0 << Index)) == 0) { | |
continue; | |
} | |
if (Private->Luns.Lun[Index] != UfsLun) { | |
continue; | |
} | |
for (Next = Index + 1; Next < UFS_MAX_LUNS; Next++) { | |
if ((Private->Luns.BitMask & (BIT0 << Next)) != 0) { | |
UfsLun = Private->Luns.Lun[Next]; | |
break; | |
} | |
} | |
if (Next == UFS_MAX_LUNS) { | |
return EFI_NOT_FOUND; | |
} else { | |
break; | |
} | |
} | |
if (Index != UFS_MAX_LUNS) { | |
*Lun = 0; | |
if ((UfsLun & BIT7) == BIT7) { | |
((UINT8 *)Lun)[0] = UFS_WLUN_PREFIX; | |
((UINT8 *)Lun)[1] = UfsLun & ~BIT7; | |
} else { | |
((UINT8 *)Lun)[1] = UfsLun; | |
} | |
return EFI_SUCCESS; | |
} else { | |
return EFI_NOT_FOUND; | |
} | |
} | |
return EFI_NOT_FOUND; | |
} | |
/** | |
Used to allocate and build a device path node for a SCSI device on a SCSI channel. | |
@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. | |
@param Target The Target is an array of size TARGET_MAX_BYTES and it specifies the | |
Target ID of the SCSI device for which a device path node is to be | |
allocated and built. Transport drivers may chose to utilize a subset of | |
this size to suit the representation of targets. For example, a Fibre | |
Channel driver may use only 8 bytes (WWN) in the array to represent a | |
FC target. | |
@param Lun The LUN of the SCSI device for which a device path node is to be | |
allocated and built. | |
@param DevicePath A pointer to a single device path node that describes the SCSI device | |
specified by Target and Lun. This function is responsible for | |
allocating the buffer DevicePath with the boot service | |
AllocatePool(). It is the caller's responsibility to free | |
DevicePath when the caller is finished with DevicePath. | |
@retval EFI_SUCCESS The device path node that describes the SCSI device specified by | |
Target and Lun was allocated and returned in | |
DevicePath. | |
@retval EFI_INVALID_PARAMETER DevicePath is NULL. | |
@retval EFI_NOT_FOUND The SCSI devices specified by Target and Lun does not exist | |
on the SCSI channel. | |
@retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate DevicePath. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
UfsPassThruBuildDevicePath ( | |
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, | |
IN UINT8 *Target, | |
IN UINT64 Lun, | |
IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath | |
) | |
{ | |
UFS_PASS_THRU_PRIVATE_DATA *Private; | |
EFI_DEV_PATH *DevicePathNode; | |
UINT8 UfsLun; | |
UINT16 Index; | |
Private = UFS_PASS_THRU_PRIVATE_DATA_FROM_THIS (This); | |
// | |
// Validate parameters passed in. | |
// | |
SetMem (mUfsTargetId, TARGET_MAX_BYTES, 0x00); | |
if (CompareMem (Target, mUfsTargetId, TARGET_MAX_BYTES) != 0) { | |
return EFI_INVALID_PARAMETER; | |
} | |
if ((UINT8)Lun == UFS_WLUN_PREFIX) { | |
UfsLun = BIT7 | (((UINT8 *)&Lun)[1] & 0xFF); | |
} else if ((UINT8)Lun == 0) { | |
UfsLun = ((UINT8 *)&Lun)[1] & 0xFF; | |
} else { | |
return EFI_NOT_FOUND; | |
} | |
for (Index = 0; Index < UFS_MAX_LUNS; Index++) { | |
if ((Private->Luns.BitMask & (BIT0 << Index)) == 0) { | |
continue; | |
} | |
if (Private->Luns.Lun[Index] == UfsLun) { | |
break; | |
} | |
} | |
if (Index == UFS_MAX_LUNS) { | |
return EFI_NOT_FOUND; | |
} | |
DevicePathNode = AllocateCopyPool (sizeof (UFS_DEVICE_PATH), &mUfsDevicePathTemplate); | |
if (DevicePathNode == NULL) { | |
return EFI_OUT_OF_RESOURCES; | |
} | |
DevicePathNode->Ufs.Pun = 0; | |
DevicePathNode->Ufs.Lun = UfsLun; | |
*DevicePath = (EFI_DEVICE_PATH_PROTOCOL *)DevicePathNode; | |
return EFI_SUCCESS; | |
} | |
/** | |
Used to translate a device path node to a Target ID and LUN. | |
@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. | |
@param DevicePath A pointer to a single device path node that describes the SCSI device | |
on the SCSI channel. | |
@param Target A pointer to the Target Array which represents the ID of a SCSI device | |
on the SCSI channel. | |
@param Lun A pointer to the LUN of a SCSI device on the SCSI channel. | |
@retval EFI_SUCCESS DevicePath was successfully translated to a Target ID and | |
LUN, and they were returned in Target and Lun. | |
@retval EFI_INVALID_PARAMETER DevicePath or Target or Lun is NULL. | |
@retval EFI_NOT_FOUND A valid translation from DevicePath to a Target ID and LUN | |
does not exist. | |
@retval EFI_UNSUPPORTED This driver does not support the device path node type in | |
DevicePath. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
UfsPassThruGetTargetLun ( | |
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, | |
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath, | |
OUT UINT8 **Target, | |
OUT UINT64 *Lun | |
) | |
{ | |
UFS_PASS_THRU_PRIVATE_DATA *Private; | |
EFI_DEV_PATH *DevicePathNode; | |
UINT8 Pun; | |
UINT8 UfsLun; | |
UINT16 Index; | |
Private = UFS_PASS_THRU_PRIVATE_DATA_FROM_THIS (This); | |
// | |
// Validate parameters passed in. | |
// | |
if ((DevicePath == NULL) || (Target == NULL) || (Lun == NULL)) { | |
return EFI_INVALID_PARAMETER; | |
} | |
if (*Target == NULL) { | |
return EFI_INVALID_PARAMETER; | |
} | |
// | |
// Check whether the DevicePath belongs to UFS_DEVICE_PATH | |
// | |
if ((DevicePath->Type != MESSAGING_DEVICE_PATH) || (DevicePath->SubType != MSG_UFS_DP) || | |
(DevicePathNodeLength (DevicePath) != sizeof (UFS_DEVICE_PATH))) | |
{ | |
return EFI_UNSUPPORTED; | |
} | |
DevicePathNode = (EFI_DEV_PATH *)DevicePath; | |
Pun = (UINT8)DevicePathNode->Ufs.Pun; | |
UfsLun = (UINT8)DevicePathNode->Ufs.Lun; | |
if (Pun != 0) { | |
return EFI_NOT_FOUND; | |
} | |
for (Index = 0; Index < UFS_MAX_LUNS; Index++) { | |
if ((Private->Luns.BitMask & (BIT0 << Index)) == 0) { | |
continue; | |
} | |
if (Private->Luns.Lun[Index] == UfsLun) { | |
break; | |
} | |
} | |
if (Index == UFS_MAX_LUNS) { | |
return EFI_NOT_FOUND; | |
} | |
SetMem (*Target, TARGET_MAX_BYTES, 0x00); | |
*Lun = 0; | |
if ((UfsLun & BIT7) == BIT7) { | |
((UINT8 *)Lun)[0] = UFS_WLUN_PREFIX; | |
((UINT8 *)Lun)[1] = UfsLun & ~BIT7; | |
} else { | |
((UINT8 *)Lun)[1] = UfsLun; | |
} | |
return EFI_SUCCESS; | |
} | |
/** | |
Resets a SCSI channel. This operation resets all the SCSI devices connected to the SCSI channel. | |
@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. | |
@retval EFI_SUCCESS The SCSI channel was reset. | |
@retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI channel. | |
@retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI channel. | |
@retval EFI_UNSUPPORTED The SCSI channel does not support a channel reset operation. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
UfsPassThruResetChannel ( | |
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This | |
) | |
{ | |
// | |
// Return success directly then upper layer driver could think reset channel operation is done. | |
// | |
return EFI_SUCCESS; | |
} | |
/** | |
Resets a SCSI logical unit that is connected to a SCSI channel. | |
@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. | |
@param Target The Target is an array of size TARGET_MAX_BYTE and it represents the | |
target port ID of the SCSI device containing the SCSI logical unit to | |
reset. Transport drivers may chose to utilize a subset of this array to suit | |
the representation of their targets. | |
@param Lun The LUN of the SCSI device to reset. | |
@retval EFI_SUCCESS The SCSI device specified by Target and Lun was reset. | |
@retval EFI_INVALID_PARAMETER Target or Lun is NULL. | |
@retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI device | |
specified by Target and Lun. | |
@retval EFI_UNSUPPORTED The SCSI channel does not support a target reset operation. | |
@retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI device | |
specified by Target and Lun. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
UfsPassThruResetTargetLun ( | |
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, | |
IN UINT8 *Target, | |
IN UINT64 Lun | |
) | |
{ | |
// | |
// Return success directly then upper layer driver could think reset target LUN operation is done. | |
// | |
return EFI_SUCCESS; | |
} | |
/** | |
Used to retrieve the list of legal Target IDs for SCSI devices on a SCSI channel. These can either | |
be the list SCSI devices that are actually present on the SCSI channel, or the list of legal Target IDs | |
for the SCSI channel. Regardless, the caller of this function must probe the Target ID returned to | |
see if a SCSI device is actually present at that location on the SCSI channel. | |
@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance. | |
@param Target (TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel. | |
On output, a pointer to the Target ID (an array of | |
TARGET_MAX_BYTES) of the next SCSI device present on a SCSI | |
channel. An input value of 0xF(all bytes in the array are 0xF) in the | |
Target array retrieves the Target ID of the first SCSI device present on a | |
SCSI channel. | |
@retval EFI_SUCCESS The Target ID of the next SCSI device on the SCSI | |
channel was returned in Target. | |
@retval EFI_INVALID_PARAMETER Target or Lun is NULL. | |
@retval EFI_TIMEOUT Target array is not all 0xF, and Target was not | |
returned on a previous call to GetNextTarget(). | |
@retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
UfsPassThruGetNextTarget ( | |
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This, | |
IN OUT UINT8 **Target | |
) | |
{ | |
if ((Target == NULL) || (*Target == NULL)) { | |
return EFI_INVALID_PARAMETER; | |
} | |
SetMem (mUfsTargetId, TARGET_MAX_BYTES, 0xFF); | |
if (CompareMem (*Target, mUfsTargetId, TARGET_MAX_BYTES) == 0) { | |
SetMem (*Target, TARGET_MAX_BYTES, 0x00); | |
return EFI_SUCCESS; | |
} | |
return EFI_NOT_FOUND; | |
} | |
/** | |
Tests to see if this driver supports a given controller. If a child device is provided, | |
it further tests to see if this driver supports creating a handle for the specified child device. | |
This function checks to see if the driver specified by This supports the device specified by | |
ControllerHandle. Drivers will typically use the device path attached to | |
ControllerHandle and/or the services from the bus I/O abstraction attached to | |
ControllerHandle to determine if the driver supports ControllerHandle. This function | |
may be called many times during platform initialization. In order to reduce boot times, the tests | |
performed by this function must be very small, and take as little time as possible to execute. This | |
function must not change the state of any hardware devices, and this function must be aware that the | |
device specified by ControllerHandle may already be managed by the same driver or a | |
different driver. This function must match its calls to AllocatePages() with FreePages(), | |
AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol(). | |
Since ControllerHandle may have been previously started by the same driver, if a protocol is | |
already in the opened state, then it must not be closed with CloseProtocol(). This is required | |
to guarantee the state of ControllerHandle is not modified by this function. | |
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance. | |
@param[in] ControllerHandle The handle of the controller to test. This handle | |
must support a protocol interface that supplies | |
an I/O abstraction to the driver. | |
@param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This | |
parameter is ignored by device drivers, and is optional for bus | |
drivers. For bus drivers, if this parameter is not NULL, then | |
the bus driver must determine if the bus controller specified | |
by ControllerHandle and the child controller specified | |
by RemainingDevicePath are both supported by this | |
bus driver. | |
@retval EFI_SUCCESS The device specified by ControllerHandle and | |
RemainingDevicePath is supported by the driver specified by This. | |
@retval EFI_ALREADY_STARTED The device specified by ControllerHandle and | |
RemainingDevicePath is already being managed by the driver | |
specified by This. | |
@retval EFI_ACCESS_DENIED The device specified by ControllerHandle and | |
RemainingDevicePath is already being managed by a different | |
driver or an application that requires exclusive access. | |
Currently not implemented. | |
@retval EFI_UNSUPPORTED The device specified by ControllerHandle and | |
RemainingDevicePath is not supported by the driver specified by This. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
UfsPassThruDriverBindingSupported ( | |
IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
IN EFI_HANDLE Controller, | |
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath | |
) | |
{ | |
EFI_STATUS Status; | |
EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath; | |
EDKII_UFS_HOST_CONTROLLER_PROTOCOL *UfsHostController; | |
// | |
// Ufs Pass Thru driver is a device driver, and should ingore the | |
// "RemainingDevicePath" according to UEFI spec | |
// | |
Status = gBS->OpenProtocol ( | |
Controller, | |
&gEfiDevicePathProtocolGuid, | |
(VOID *)&ParentDevicePath, | |
This->DriverBindingHandle, | |
Controller, | |
EFI_OPEN_PROTOCOL_BY_DRIVER | |
); | |
if (EFI_ERROR (Status)) { | |
// | |
// EFI_ALREADY_STARTED is also an error | |
// | |
return Status; | |
} | |
// | |
// Close the protocol because we don't use it here | |
// | |
gBS->CloseProtocol ( | |
Controller, | |
&gEfiDevicePathProtocolGuid, | |
This->DriverBindingHandle, | |
Controller | |
); | |
Status = gBS->OpenProtocol ( | |
Controller, | |
&gEdkiiUfsHostControllerProtocolGuid, | |
(VOID **)&UfsHostController, | |
This->DriverBindingHandle, | |
Controller, | |
EFI_OPEN_PROTOCOL_BY_DRIVER | |
); | |
if (EFI_ERROR (Status)) { | |
// | |
// EFI_ALREADY_STARTED is also an error | |
// | |
return Status; | |
} | |
// | |
// Close the I/O Abstraction(s) used to perform the supported test | |
// | |
gBS->CloseProtocol ( | |
Controller, | |
&gEdkiiUfsHostControllerProtocolGuid, | |
This->DriverBindingHandle, | |
Controller | |
); | |
return EFI_SUCCESS; | |
} | |
/** | |
Finishes device initialization by setting fDeviceInit flag and waiting untill device responds by | |
clearing it. | |
@param[in] Private Pointer to the UFS_PASS_THRU_PRIVATE_DATA. | |
@retval EFI_SUCCESS The operation succeeds. | |
@retval Others The operation fails. | |
**/ | |
EFI_STATUS | |
UfsFinishDeviceInitialization ( | |
IN UFS_PASS_THRU_PRIVATE_DATA *Private | |
) | |
{ | |
EFI_STATUS Status; | |
UINT8 DeviceInitStatus; | |
UINT32 Timeout; | |
DeviceInitStatus = 0xFF; | |
// | |
// The host enables the device initialization completion by setting fDeviceInit flag. | |
// | |
Status = UfsSetFlag (Private, UfsFlagDevInit); | |
if (EFI_ERROR (Status)) { | |
return Status; | |
} | |
// | |
// There are cards that can take upto 600ms to clear fDeviceInit flag. | |
// | |
Timeout = UFS_INIT_COMPLETION_TIMEOUT; | |
do { | |
Status = UfsReadFlag (Private, UfsFlagDevInit, &DeviceInitStatus); | |
if (EFI_ERROR (Status)) { | |
return Status; | |
} | |
MicroSecondDelay (1); | |
Timeout--; | |
} while (DeviceInitStatus != 0 && Timeout != 0); | |
if (Timeout == 0) { | |
DEBUG ((DEBUG_ERROR, "UfsFinishDeviceInitialization DeviceInitStatus=%x EFI_TIMEOUT \n", DeviceInitStatus)); | |
return EFI_TIMEOUT; | |
} else { | |
DEBUG ((DEBUG_INFO, "UfsFinishDeviceInitialization Timeout left=%x EFI_SUCCESS \n", Timeout)); | |
return EFI_SUCCESS; | |
} | |
} | |
/** | |
Starts a device controller or a bus controller. | |
The Start() function is designed to be invoked from the EFI boot service ConnectController(). | |
As a result, much of the error checking on the parameters to Start() has been moved into this | |
common boot service. It is legal to call Start() from other locations, | |
but the following calling restrictions must be followed or the system behavior will not be deterministic. | |
1. ControllerHandle must be a valid EFI_HANDLE. | |
2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned | |
EFI_DEVICE_PATH_PROTOCOL. | |
3. Prior to calling Start(), the Supported() function for the driver specified by This must | |
have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS. | |
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance. | |
@param[in] ControllerHandle The handle of the controller to start. This handle | |
must support a protocol interface that supplies | |
an I/O abstraction to the driver. | |
@param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This | |
parameter is ignored by device drivers, and is optional for bus | |
drivers. For a bus driver, if this parameter is NULL, then handles | |
for all the children of Controller are created by this driver. | |
If this parameter is not NULL and the first Device Path Node is | |
not the End of Device Path Node, then only the handle for the | |
child device specified by the first Device Path Node of | |
RemainingDevicePath is created by this driver. | |
If the first Device Path Node of RemainingDevicePath is | |
the End of Device Path Node, no child handle is created by this | |
driver. | |
@retval EFI_SUCCESS The device was started. | |
@retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented. | |
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources. | |
@retval Others The driver failded to start the device. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
UfsPassThruDriverBindingStart ( | |
IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
IN EFI_HANDLE Controller, | |
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath | |
) | |
{ | |
EFI_STATUS Status; | |
EDKII_UFS_HOST_CONTROLLER_PROTOCOL *UfsHc; | |
UFS_PASS_THRU_PRIVATE_DATA *Private; | |
UINTN UfsHcBase; | |
UINT32 Index; | |
UFS_UNIT_DESC UnitDescriptor; | |
UFS_DEV_DESC DeviceDescriptor; | |
UINT32 UnitDescriptorSize; | |
UINT32 DeviceDescriptorSize; | |
EDKII_UFS_CARD_REF_CLK_FREQ_ATTRIBUTE Attributes; | |
UINT8 RefClkAttr; | |
Status = EFI_SUCCESS; | |
UfsHc = NULL; | |
Private = NULL; | |
UfsHcBase = 0; | |
DEBUG ((DEBUG_INFO, "==UfsPassThru Start== Controller = %x\n", Controller)); | |
Status = gBS->OpenProtocol ( | |
Controller, | |
&gEdkiiUfsHostControllerProtocolGuid, | |
(VOID **)&UfsHc, | |
This->DriverBindingHandle, | |
Controller, | |
EFI_OPEN_PROTOCOL_BY_DRIVER | |
); | |
if (EFI_ERROR (Status)) { | |
DEBUG ((DEBUG_ERROR, "Open Ufs Host Controller Protocol Error, Status = %r\n", Status)); | |
goto Error; | |
} | |
// | |
// Get the UFS Host Controller MMIO Bar Base Address. | |
// | |
Status = UfsHc->GetUfsHcMmioBar (UfsHc, &UfsHcBase); | |
if (EFI_ERROR (Status)) { | |
DEBUG ((DEBUG_ERROR, "Get Ufs Host Controller Mmio Bar Error, Status = %r\n", Status)); | |
goto Error; | |
} | |
// | |
// Initialize Ufs Pass Thru private data for managed UFS Host Controller. | |
// | |
Private = AllocateCopyPool (sizeof (UFS_PASS_THRU_PRIVATE_DATA), &gUfsPassThruTemplate); | |
if (Private == NULL) { | |
DEBUG ((DEBUG_ERROR, "Unable to allocate Ufs Pass Thru private data\n")); | |
Status = EFI_OUT_OF_RESOURCES; | |
goto Error; | |
} | |
Private->ExtScsiPassThru.Mode = &Private->ExtScsiPassThruMode; | |
Private->UfsHostController = UfsHc; | |
Private->UfsHcBase = UfsHcBase; | |
Private->Handle = Controller; | |
Private->UfsHcDriverInterface.UfsHcProtocol = UfsHc; | |
Private->UfsHcDriverInterface.UfsExecUicCommand = UfsHcDriverInterfaceExecUicCommand; | |
InitializeListHead (&Private->Queue); | |
// | |
// This has to be done before initializing UfsHcInfo or calling the UfsControllerInit | |
// | |
if (mUfsHcPlatform == NULL) { | |
Status = gBS->LocateProtocol (&gEdkiiUfsHcPlatformProtocolGuid, NULL, (VOID **)&mUfsHcPlatform); | |
if (EFI_ERROR (Status)) { | |
DEBUG ((DEBUG_INFO, "No UfsHcPlatformProtocol present\n")); | |
} | |
} | |
Status = GetUfsHcInfo (Private); | |
if (EFI_ERROR (Status)) { | |
DEBUG ((DEBUG_ERROR, "Failed to initialize UfsHcInfo\n")); | |
goto Error; | |
} | |
// | |
// Initialize UFS Host Controller H/W. | |
// | |
Status = UfsControllerInit (Private); | |
if (EFI_ERROR (Status)) { | |
DEBUG ((DEBUG_ERROR, "Ufs Host Controller Initialization Error, Status = %r\n", Status)); | |
goto Error; | |
} | |
// | |
// UFS 2.0 spec Section 13.1.3.3: | |
// At the end of the UFS Interconnect Layer initialization on both host and device side, | |
// the host shall send a NOP OUT UPIU to verify that the device UTP Layer is ready. | |
// | |
Status = UfsExecNopCmds (Private); | |
if (EFI_ERROR (Status)) { | |
DEBUG ((DEBUG_ERROR, "Ufs Sending NOP IN command Error, Status = %r\n", Status)); | |
goto Error; | |
} | |
Status = UfsFinishDeviceInitialization (Private); | |
if (EFI_ERROR (Status)) { | |
DEBUG ((DEBUG_ERROR, "Device failed to finish initialization, Status = %r\n", Status)); | |
goto Error; | |
} | |
if ((mUfsHcPlatform != NULL) && | |
((mUfsHcPlatform->RefClkFreq == EdkiiUfsCardRefClkFreq19p2Mhz) || | |
(mUfsHcPlatform->RefClkFreq == EdkiiUfsCardRefClkFreq26Mhz) || | |
(mUfsHcPlatform->RefClkFreq == EdkiiUfsCardRefClkFreq38p4Mhz))) | |
{ | |
RefClkAttr = UfsAttrRefClkFreq; | |
Attributes = EdkiiUfsCardRefClkFreqObsolete; | |
Status = UfsRwAttributes (Private, TRUE, RefClkAttr, 0, 0, (UINT32 *)&Attributes); | |
if (!EFI_ERROR (Status)) { | |
if (Attributes != mUfsHcPlatform->RefClkFreq) { | |
Attributes = mUfsHcPlatform->RefClkFreq; | |
DEBUG ( | |
(DEBUG_INFO, | |
"Setting bRefClkFreq attribute(%x) to %x\n 0 -> 19.2 Mhz\n 1 -> 26 Mhz\n 2 -> 38.4 Mhz\n 3 -> Obsolete\n", | |
RefClkAttr, | |
Attributes) | |
); | |
Status = UfsRwAttributes (Private, FALSE, RefClkAttr, 0, 0, (UINT32 *)&Attributes); | |
if (EFI_ERROR (Status)) { | |
DEBUG ( | |
(DEBUG_ERROR, | |
"Failed to Change Reference Clock Attribute to %d, Status = %r \n", | |
mUfsHcPlatform->RefClkFreq, | |
Status) | |
); | |
} | |
} | |
} else { | |
DEBUG ( | |
(DEBUG_ERROR, | |
"Failed to Read Reference Clock Attribute, Status = %r \n", | |
Status) | |
); | |
} | |
} | |
if ((mUfsHcPlatform != NULL) && (mUfsHcPlatform->Callback != NULL)) { | |
Status = mUfsHcPlatform->Callback (Private->Handle, EdkiiUfsHcPostLinkStartup, &Private->UfsHcDriverInterface); | |
if (EFI_ERROR (Status)) { | |
DEBUG ( | |
(DEBUG_ERROR, | |
"Failure from platform driver during EdkiiUfsHcPostLinkStartup, Status = %r\n", | |
Status) | |
); | |
return Status; | |
} | |
} | |
// | |
// Check if 8 common luns are active and set corresponding bit mask. | |
// | |
UnitDescriptorSize = sizeof (UFS_UNIT_DESC); | |
for (Index = 0; Index < 8; Index++) { | |
Status = UfsRwDeviceDesc (Private, TRUE, UfsUnitDesc, (UINT8)Index, 0, &UnitDescriptor, &UnitDescriptorSize); | |
if (EFI_ERROR (Status)) { | |
DEBUG ((DEBUG_ERROR, "Failed to read unit descriptor, index = %X, status = %r\n", Index, Status)); | |
continue; | |
} | |
if (UnitDescriptor.LunEn == 0x1) { | |
DEBUG ((DEBUG_INFO, "UFS LUN %X is enabled\n", Index)); | |
Private->Luns.BitMask |= (BIT0 << Index); | |
} | |
} | |
// | |
// Check if RPMB WLUN is supported and set corresponding bit mask. | |
// | |
DeviceDescriptorSize = sizeof (UFS_DEV_DESC); | |
Status = UfsRwDeviceDesc (Private, TRUE, UfsDeviceDesc, 0, 0, &DeviceDescriptor, &DeviceDescriptorSize); | |
if (EFI_ERROR (Status)) { | |
DEBUG ((DEBUG_ERROR, "Failed to read device descriptor, status = %r\n", Status)); | |
} else { | |
if (DeviceDescriptor.SecurityLun == 0x1) { | |
DEBUG ((DEBUG_INFO, "UFS WLUN RPMB is supported\n")); | |
Private->Luns.BitMask |= BIT11; | |
} | |
} | |
// | |
// Start the asynchronous interrupt monitor | |
// | |
Status = gBS->CreateEvent ( | |
EVT_TIMER | EVT_NOTIFY_SIGNAL, | |
TPL_NOTIFY, | |
ProcessAsyncTaskList, | |
Private, | |
&Private->TimerEvent | |
); | |
if (EFI_ERROR (Status)) { | |
DEBUG ((DEBUG_ERROR, "Ufs Create Async Tasks Event Error, Status = %r\n", Status)); | |
goto Error; | |
} | |
Status = gBS->SetTimer ( | |
Private->TimerEvent, | |
TimerPeriodic, | |
UFS_HC_ASYNC_TIMER | |
); | |
if (EFI_ERROR (Status)) { | |
DEBUG ((DEBUG_ERROR, "Ufs Set Periodic Timer Error, Status = %r\n", Status)); | |
goto Error; | |
} | |
Status = gBS->InstallMultipleProtocolInterfaces ( | |
&Controller, | |
&gEfiExtScsiPassThruProtocolGuid, | |
&(Private->ExtScsiPassThru), | |
&gEfiUfsDeviceConfigProtocolGuid, | |
&(Private->UfsDevConfig), | |
NULL | |
); | |
ASSERT_EFI_ERROR (Status); | |
return EFI_SUCCESS; | |
Error: | |
if (Private != NULL) { | |
if (Private->TmrlMapping != NULL) { | |
UfsHc->Unmap (UfsHc, Private->TmrlMapping); | |
} | |
if (Private->UtpTmrlBase != NULL) { | |
UfsHc->FreeBuffer (UfsHc, EFI_SIZE_TO_PAGES (Private->Nutmrs * sizeof (UTP_TMRD)), Private->UtpTmrlBase); | |
} | |
if (Private->TrlMapping != NULL) { | |
UfsHc->Unmap (UfsHc, Private->TrlMapping); | |
} | |
if (Private->UtpTrlBase != NULL) { | |
UfsHc->FreeBuffer (UfsHc, EFI_SIZE_TO_PAGES (Private->Nutrs * sizeof (UTP_TMRD)), Private->UtpTrlBase); | |
} | |
if (Private->TimerEvent != NULL) { | |
gBS->CloseEvent (Private->TimerEvent); | |
} | |
FreePool (Private); | |
} | |
if (UfsHc != NULL) { | |
gBS->CloseProtocol ( | |
Controller, | |
&gEdkiiUfsHostControllerProtocolGuid, | |
This->DriverBindingHandle, | |
Controller | |
); | |
} | |
return Status; | |
} | |
/** | |
Stops a device controller or a bus controller. | |
The Stop() function is designed to be invoked from the EFI boot service DisconnectController(). | |
As a result, much of the error checking on the parameters to Stop() has been moved | |
into this common boot service. It is legal to call Stop() from other locations, | |
but the following calling restrictions must be followed or the system behavior will not be deterministic. | |
1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this | |
same driver's Start() function. | |
2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid | |
EFI_HANDLE. In addition, all of these handles must have been created in this driver's | |
Start() function, and the Start() function must have called OpenProtocol() on | |
ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER. | |
@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance. | |
@param[in] ControllerHandle A handle to the device being stopped. The handle must | |
support a bus specific I/O protocol for the driver | |
to use to stop the device. | |
@param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer. | |
@param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL | |
if NumberOfChildren is 0. | |
@retval EFI_SUCCESS The device was stopped. | |
@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
UfsPassThruDriverBindingStop ( | |
IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
IN EFI_HANDLE Controller, | |
IN UINTN NumberOfChildren, | |
IN EFI_HANDLE *ChildHandleBuffer | |
) | |
{ | |
EFI_STATUS Status; | |
UFS_PASS_THRU_PRIVATE_DATA *Private; | |
EFI_EXT_SCSI_PASS_THRU_PROTOCOL *ExtScsiPassThru; | |
EDKII_UFS_HOST_CONTROLLER_PROTOCOL *UfsHc; | |
UFS_PASS_THRU_TRANS_REQ *TransReq; | |
LIST_ENTRY *Entry; | |
LIST_ENTRY *NextEntry; | |
DEBUG ((DEBUG_INFO, "==UfsPassThru Stop== Controller Controller = %x\n", Controller)); | |
Status = gBS->OpenProtocol ( | |
Controller, | |
&gEfiExtScsiPassThruProtocolGuid, | |
(VOID **)&ExtScsiPassThru, | |
This->DriverBindingHandle, | |
Controller, | |
EFI_OPEN_PROTOCOL_GET_PROTOCOL | |
); | |
if (EFI_ERROR (Status)) { | |
return EFI_DEVICE_ERROR; | |
} | |
Private = UFS_PASS_THRU_PRIVATE_DATA_FROM_THIS (ExtScsiPassThru); | |
UfsHc = Private->UfsHostController; | |
// | |
// Cleanup the resources of I/O requests in the async I/O queue | |
// | |
if (!IsListEmpty (&Private->Queue)) { | |
BASE_LIST_FOR_EACH_SAFE (Entry, NextEntry, &Private->Queue) { | |
TransReq = UFS_PASS_THRU_TRANS_REQ_FROM_THIS (Entry); | |
// | |
// TODO: Should find/add a proper host adapter return status for this | |
// case. | |
// | |
TransReq->Packet->HostAdapterStatus = | |
EFI_EXT_SCSI_STATUS_HOST_ADAPTER_PHASE_ERROR; | |
SignalCallerEvent (Private, TransReq); | |
} | |
} | |
Status = gBS->UninstallMultipleProtocolInterfaces ( | |
Controller, | |
&gEfiExtScsiPassThruProtocolGuid, | |
&(Private->ExtScsiPassThru), | |
&gEfiUfsDeviceConfigProtocolGuid, | |
&(Private->UfsDevConfig), | |
NULL | |
); | |
if (EFI_ERROR (Status)) { | |
return EFI_DEVICE_ERROR; | |
} | |
// | |
// Stop Ufs Host Controller | |
// | |
Status = UfsControllerStop (Private); | |
ASSERT_EFI_ERROR (Status); | |
if (Private->TmrlMapping != NULL) { | |
UfsHc->Unmap (UfsHc, Private->TmrlMapping); | |
} | |
if (Private->UtpTmrlBase != NULL) { | |
UfsHc->FreeBuffer (UfsHc, EFI_SIZE_TO_PAGES (Private->Nutmrs * sizeof (UTP_TMRD)), Private->UtpTmrlBase); | |
} | |
if (Private->TrlMapping != NULL) { | |
UfsHc->Unmap (UfsHc, Private->TrlMapping); | |
} | |
if (Private->UtpTrlBase != NULL) { | |
UfsHc->FreeBuffer (UfsHc, EFI_SIZE_TO_PAGES (Private->Nutrs * sizeof (UTP_TMRD)), Private->UtpTrlBase); | |
} | |
if (Private->TimerEvent != NULL) { | |
gBS->CloseEvent (Private->TimerEvent); | |
} | |
FreePool (Private); | |
// | |
// Close protocols opened by UfsPassThru controller driver | |
// | |
gBS->CloseProtocol ( | |
Controller, | |
&gEdkiiUfsHostControllerProtocolGuid, | |
This->DriverBindingHandle, | |
Controller | |
); | |
return Status; | |
} | |
/** | |
The user Entry Point for module UfsPassThru. The user code starts with this function. | |
@param[in] ImageHandle The firmware allocated handle for the EFI image. | |
@param[in] SystemTable A pointer to the EFI System Table. | |
@retval EFI_SUCCESS The entry point is executed successfully. | |
@retval other Some error occurs when executing this entry point. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
InitializeUfsPassThru ( | |
IN EFI_HANDLE ImageHandle, | |
IN EFI_SYSTEM_TABLE *SystemTable | |
) | |
{ | |
EFI_STATUS Status; | |
// | |
// Install driver model protocol(s). | |
// | |
Status = EfiLibInstallDriverBindingComponentName2 ( | |
ImageHandle, | |
SystemTable, | |
&gUfsPassThruDriverBinding, | |
ImageHandle, | |
&gUfsPassThruComponentName, | |
&gUfsPassThruComponentName2 | |
); | |
ASSERT_EFI_ERROR (Status); | |
return Status; | |
} |