tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

MdeModulePkg/UfsPassThruDxe: Refactor UfsExecUicCommand function 

https://bugzilla.tianocore.org/show_bug.cgi?id=1343

UfsExecUicCommand function has been refactored to allow
the caller to check the command results which is important
for commands such as UIC read.

Signed-off-by: Mateusz Albecki <mateusz.albecki@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
This commit is contained in:
Albecki, Mateusz 2019-08-09 22:36:18 +08:00 committed by Hao A Wu
parent 1bfd58c22e
commit 90952ad733
2 changed files with 27 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThru.h
View File

@ -1,6 +1,6 @@
/** @file
Copyright (c) 2014 - 2018, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2014 - 2019, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@ -13,6 +13,7 @@
#include <Protocol/ScsiPassThruExt.h>
#include <Protocol/UfsDeviceConfig.h>
#include <Protocol/UfsHostController.h>
#include <Protocol/UfsHostControllerPlatform.h>
#include <Library/DebugLib.h>
#include <Library/UefiDriverEntryPoint.h>

39
MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c
View File

@ -2,7 +2,7 @@
UfsPassThruDxe driver is used to produce EFI_EXT_SCSI_PASS_THRU protocol interface
for upper layer application to execute UFS-supported SCSI cmds.
Copyright (c) 2014 - 2018, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2014 - 2019, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@ -1634,10 +1634,7 @@ Exit1:
Send UIC command.
@param[in] Private The pointer to the UFS_PASS_THRU_PRIVATE_DATA data structure.
@param[in] UicOpcode The opcode of the UIC command.
@param[in] Arg1 The value for 1st argument of the UIC command.
@param[in] Arg2 The value for 2nd argument of the UIC command.
@param[in] Arg3 The value for 3rd argument of the UIC command.
@param[in, out] UicCommand UIC command descriptor. On exit contains UIC command results.
@return EFI_SUCCESS Successfully execute this UIC command and detect attached UFS device.
@return EFI_DEVICE_ERROR Fail to execute this UIC command and detect attached UFS device.
@ -1646,10 +1643,7 @@ Exit1:
EFI_STATUS
UfsExecUicCommands (
IN UFS_PASS_THRU_PRIVATE_DATA *Private,
IN UINT8 UicOpcode,
IN UINT32 Arg1,
IN UINT32 Arg2,
IN UINT32 Arg3
IN OUT EDKII_UIC_COMMAND *UicCommand
)
{
EFI_STATUS Status;
@ -1675,17 +1669,17 @@ UfsExecUicCommands (
// only after all the UIC command argument registers (UICCMDARG1, UICCMDARG2 and UICCMDARG3)
// are set.
//
Status = UfsMmioWrite32 (Private, UFS_HC_UCMD_ARG1_OFFSET, Arg1);
Status = UfsMmioWrite32 (Private, UFS_HC_UCMD_ARG1_OFFSET, UicCommand->Arg1);
if (EFI_ERROR (Status)) {
return Status;
}
Status = UfsMmioWrite32 (Private, UFS_HC_UCMD_ARG2_OFFSET, Arg2);
Status = UfsMmioWrite32 (Private, UFS_HC_UCMD_ARG2_OFFSET, UicCommand->Arg2);
if (EFI_ERROR (Status)) {
return Status;
}
Status = UfsMmioWrite32 (Private, UFS_HC_UCMD_ARG3_OFFSET, Arg3);
Status = UfsMmioWrite32 (Private, UFS_HC_UCMD_ARG3_OFFSET, UicCommand->Arg3);
if (EFI_ERROR (Status)) {
return Status;
}
@ -1698,7 +1692,7 @@ UfsExecUicCommands (
return Status;
}
Status = UfsMmioWrite32 (Private, UFS_HC_UIC_CMD_OFFSET, (UINT32)UicOpcode);
Status = UfsMmioWrite32 (Private, UFS_HC_UIC_CMD_OFFSET, UicCommand->Opcode);
if (EFI_ERROR (Status)) {
return Status;
}
@ -1712,14 +1706,18 @@ UfsExecUicCommands (
return Status;
}
if (UicOpcode != UfsUicDmeReset) {
Status = UfsMmioRead32 (Private, UFS_HC_UCMD_ARG2_OFFSET, &Data);
if (UicCommand->Opcode != UfsUicDmeReset) {
Status = UfsMmioRead32 (Private, UFS_HC_UCMD_ARG2_OFFSET, &UicCommand->Arg2);
if (EFI_ERROR (Status)) {
return Status;
}
if ((Data & 0xFF) != 0) {
Status = UfsMmioRead32 (Private, UFS_HC_UCMD_ARG3_OFFSET, &UicCommand->Arg3);
if (EFI_ERROR (Status)) {
return Status;
}
if ((UicCommand->Arg2 & 0xFF) != 0) {
DEBUG_CODE_BEGIN();
DumpUicCmdExecResult (UicOpcode, (UINT8)(Data & 0xFF));
DumpUicCmdExecResult ((UINT8)UicCommand->Opcode, (UINT8)(UicCommand->Arg2 & 0xFF));
DEBUG_CODE_END();
return EFI_DEVICE_ERROR;
}
@ -1901,13 +1899,18 @@ UfsDeviceDetection (
UINTN Retry;
EFI_STATUS Status;
UINT32 Data;
EDKII_UIC_COMMAND LinkStartupCommand;
//
// Start UFS device detection.
// Try up to 3 times for establishing data link with device.
//
for (Retry = 0; Retry < 3; Retry++) {
Status = UfsExecUicCommands (Private, UfsUicDmeLinkStartup, 0, 0, 0);
LinkStartupCommand.Opcode = UfsUicDmeLinkStartup;
LinkStartupCommand.Arg1 = 0;
LinkStartupCommand.Arg2 = 0;
LinkStartupCommand.Arg3 = 0;
Status = UfsExecUicCommands (Private, &LinkStartupCommand);
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}