UefiPayloadPkg: Remove asm code and sharing libraries

[mirror_edk2.git] / UefiPayloadPkg / Library / PlatformHookLib / PlatformHookLib.c

diff --git a/UefiPayloadPkg/Library/PlatformHookLib/PlatformHookLib.c b/UefiPayloadPkg/Library/PlatformHookLib/PlatformHookLib.c
index d8453e595772b3385ac100cf53a4f552f3cfbfc9..004fcd8b7ca3beec0a0e3139eb7e9549ba3a3f1b 100644 (file)
--- a/UefiPayloadPkg/Library/PlatformHookLib/PlatformHookLib.c
+++ b/UefiPayloadPkg/Library/PlatformHookLib/PlatformHookLib.c
@@ -1,29 +1,34 @@
 /** @file\r
   Platform Hook Library instance for UART device.\r
 \r
-  Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>\r
+  Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>\r
   SPDX-License-Identifier: BSD-2-Clause-Patent\r
 \r
 **/\r
 \r
 #include <Base.h>\r
-#include <Uefi/UefiBaseType.h>\r
-#include <Library/PciLib.h>\r
+#include <PiDxe.h>\r
+#include <UniversalPayload/SerialPortInfo.h>\r
 #include <Library/PlatformHookLib.h>\r
-#include <Library/BlParseLib.h>\r
 #include <Library/PcdLib.h>\r
+#include <Library/HobLib.h>\r
 \r
-typedef struct {\r
-  UINT16  VendorId;          ///< Vendor ID to match the PCI device.  The value 0xFFFF terminates the list of entries.\r
-  UINT16  DeviceId;          ///< Device ID to match the PCI device\r
-  UINT32  ClockRate;         ///< UART clock rate.  Set to 0 for default clock rate of 1843200 Hz\r
-  UINT64  Offset;            ///< The byte offset into to the BAR\r
-  UINT8   BarIndex;          ///< Which BAR to get the UART base address\r
-  UINT8   RegisterStride;    ///< UART register stride in bytes.  Set to 0 for default register stride of 1 byte.\r
-  UINT16  ReceiveFifoDepth;  ///< UART receive FIFO depth in bytes. Set to 0 for a default FIFO depth of 16 bytes.\r
-  UINT16  TransmitFifoDepth; ///< UART transmit FIFO depth in bytes. Set to 0 for a default FIFO depth of 16 bytes.\r
-  UINT8   Reserved[2];\r
-} PCI_SERIAL_PARAMETER;\r
+\r
+/** Library Constructor\r
+\r
+  @retval RETURN_SUCCESS  Success.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+PlatformHookSerialPortConstructor (\r
+  VOID\r
+  )\r
+{\r
+  // Nothing to do here. This constructor is added to\r
+  // enable the chain of constructor invocation for\r
+  // dependent libraries.\r
+  return RETURN_SUCCESS;\r
+}\r
 \r
 /**\r
   Performs platform specific initialization required for the CPU to access\r
@@ -42,52 +47,49 @@ PlatformHookSerialPortInitialize (
   VOID\r
   )\r
 {\r
-  RETURN_STATUS         Status;\r
-  UINT32                DeviceVendor;\r
-  PCI_SERIAL_PARAMETER  *SerialParam;\r
-  SERIAL_PORT_INFO      SerialPortInfo;\r
-\r
-  Status = ParseSerialInfo (&SerialPortInfo);\r
-  if (RETURN_ERROR (Status)) {\r
-    return Status;\r
-  }\r
+  RETURN_STATUS                       Status;\r
+  UNIVERSAL_PAYLOAD_SERIAL_PORT_INFO  *SerialPortInfo;\r
+  UINT8                               *GuidHob;\r
+  UNIVERSAL_PAYLOAD_GENERIC_HEADER    *GenericHeader;\r
 \r
-  if (SerialPortInfo.Type == PLD_SERIAL_TYPE_MEMORY_MAPPED) {\r
-    Status = PcdSetBoolS (PcdSerialUseMmio, TRUE);\r
-  } else { //IO\r
-    Status = PcdSetBoolS (PcdSerialUseMmio, FALSE);\r
-  }\r
-  if (RETURN_ERROR (Status)) {\r
-    return Status;\r
-  }\r
-  Status = PcdSet64S (PcdSerialRegisterBase, SerialPortInfo.BaseAddr);\r
-  if (RETURN_ERROR (Status)) {\r
-    return Status;\r
+  GuidHob = GetFirstGuidHob (&gUniversalPayloadSerialPortInfoGuid);\r
+  if (GuidHob == NULL) {\r
+    return EFI_NOT_FOUND;\r
   }\r
 \r
-  Status = PcdSet32S (PcdSerialRegisterStride, SerialPortInfo.RegWidth);\r
-  if (RETURN_ERROR (Status)) {\r
-    return Status;\r
+  GenericHeader = (UNIVERSAL_PAYLOAD_GENERIC_HEADER *) GET_GUID_HOB_DATA (GuidHob);\r
+  if ((sizeof (UNIVERSAL_PAYLOAD_GENERIC_HEADER) > GET_GUID_HOB_DATA_SIZE (GuidHob)) || (GenericHeader->Length > GET_GUID_HOB_DATA_SIZE (GuidHob))) {\r
+    return EFI_NOT_FOUND;\r
   }\r
 \r
-  Status = PcdSet32S (PcdSerialBaudRate, SerialPortInfo.Baud);\r
-  if (RETURN_ERROR (Status)) {\r
-    return Status;\r
-  }\r
+  if (GenericHeader->Revision == UNIVERSAL_PAYLOAD_SERIAL_PORT_INFO_REVISION) {\r
+    SerialPortInfo = (UNIVERSAL_PAYLOAD_SERIAL_PORT_INFO *) GET_GUID_HOB_DATA (GuidHob);\r
+    if (GenericHeader->Length < UNIVERSAL_PAYLOAD_SIZEOF_THROUGH_FIELD (UNIVERSAL_PAYLOAD_SERIAL_PORT_INFO, RegisterBase)) {\r
+      //\r
+      // Return if can't find the Serial Port Info Hob with enough length\r
+      //\r
+      return EFI_NOT_FOUND;\r
+    }\r
 \r
-  Status = PcdSet32S (PcdSerialClockRate, SerialPortInfo.InputHertz);\r
-  if (RETURN_ERROR (Status)) {\r
-    return Status;\r
-  }\r
+    Status = PcdSetBoolS (PcdSerialUseMmio, SerialPortInfo->UseMmio);\r
+    if (RETURN_ERROR (Status)) {\r
+      return Status;\r
+    }\r
+    Status = PcdSet64S (PcdSerialRegisterBase, SerialPortInfo->RegisterBase);\r
+    if (RETURN_ERROR (Status)) {\r
+      return Status;\r
+    }\r
+    Status = PcdSet32S (PcdSerialRegisterStride, SerialPortInfo->RegisterStride);\r
+    if (RETURN_ERROR (Status)) {\r
+      return Status;\r
+    }\r
+    Status = PcdSet32S (PcdSerialBaudRate, SerialPortInfo->BaudRate);\r
+    if (RETURN_ERROR (Status)) {\r
+      return Status;\r
+    }\r
 \r
-  if (SerialPortInfo.UartPciAddr >= 0x80000000) {\r
-    DeviceVendor = PciRead32 (SerialPortInfo.UartPciAddr & 0x0ffff000);\r
-    SerialParam  = PcdGetPtr(PcdPciSerialParameters);\r
-    SerialParam->VendorId  = (UINT16)DeviceVendor;\r
-    SerialParam->DeviceId  = DeviceVendor >> 16;\r
-    SerialParam->ClockRate = SerialPortInfo.InputHertz;\r
-    SerialParam->RegisterStride = (UINT8)SerialPortInfo.RegWidth;\r
+    return RETURN_SUCCESS;\r
   }\r
 \r
-  return RETURN_SUCCESS;\r
+  return EFI_NOT_FOUND;\r
 }\r