MdeModulePkg/UfsPassThruDxe: Implement EDKII_UFS_HC_PLATFORM_PROTOCOL

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

This commit adds EDKII_UFS_HC_PLATFORM_PROTOCOL implementation
in UfsPassThruDxe driver in version 1. Driver assumes that at
most one instance of the protocol exists in the system. Presence
of the protocol is not mandatory.

Signed-off-by: Mateusz Albecki <mateusz.albecki@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThru.c b/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThru.c
index 7dce217d49..b12404aacb 100644
--- a/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThru.c
+++ b/MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThru.c
@@ -36,6 +36,7 @@ UFS_PASS_THRU_PRIVATE_DATA gUfsPassThruTemplate = {
   0,                              // UfsHostController

   0,                              // UfsHcBase

   {0, 0},                         // UfsHcInfo

+  {NULL, NULL},                   // UfsHcDriverInterface

   0,                              // TaskTag

   0,                              // UtpTrlBase

   0,                              // Nutrs

@@ -92,6 +93,8 @@ UFS_DEVICE_PATH    mUfsDevicePathTemplate = {
 

 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

@@ -864,7 +867,21 @@ UfsPassThruDriverBindingStart (
   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"));