Revision: 14830
http://sourceforge.net/p/edk2/code/14830
Author: shenshushi
Date: 2013-11-08 02:59:05 +0000 (Fri, 08 Nov 2013)
Log Message:
-----------
Add BaseSmbusLibNull instance for SmbusLib. Add check in BootScriptExecutorDxe
driver for the return status of S3BootScriptExecute().
Signed-off-by: Shumin Qiu <[email protected]>
Reviewed-by: Liming Gao <[email protected]>
Modified Paths:
--------------
trunk/edk2/MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/ScriptExecute.c
trunk/edk2/MdePkg/MdePkg.dsc
Added Paths:
-----------
trunk/edk2/MdePkg/Library/BaseSmbusLibNull/
trunk/edk2/MdePkg/Library/BaseSmbusLibNull/BaseSmbusLibNull.c
trunk/edk2/MdePkg/Library/BaseSmbusLibNull/BaseSmbusLibNull.inf
Modified:
trunk/edk2/MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/ScriptExecute.c
===================================================================
---
trunk/edk2/MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/ScriptExecute.c
2013-11-08 02:23:27 UTC (rev 14829)
+++
trunk/edk2/MdeModulePkg/Universal/Acpi/BootScriptExecutorDxe/ScriptExecute.c
2013-11-08 02:59:05 UTC (rev 14830)
@@ -68,6 +68,16 @@
// for that parameter.
//
Status = S3BootScriptExecute ();
+
+ //
+ // If invalid script table or opcode in S3 boot script table.
+ //
+ ASSERT_EFI_ERROR (Status);
+
+ if (EFI_ERROR (Status)) {
+ CpuDeadLoop ();
+ return Status;
+ }
AsmWbinvd ();
Added: trunk/edk2/MdePkg/Library/BaseSmbusLibNull/BaseSmbusLibNull.c
===================================================================
--- trunk/edk2/MdePkg/Library/BaseSmbusLibNull/BaseSmbusLibNull.c
(rev 0)
+++ trunk/edk2/MdePkg/Library/BaseSmbusLibNull/BaseSmbusLibNull.c
2013-11-08 02:59:05 UTC (rev 14830)
@@ -0,0 +1,544 @@
+/** @file
+Null implementation of SmBusLib class library.
+
+Copyright (c) 2013, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD
License
+which accompanies this distribution. The full text of the license may be
found at
+http://opensource.org/licenses/bsd-license.php.
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <Base.h>
+#include <Library/SmbusLib.h>
+#include <Library/DebugLib.h>
+
+/**
+ Executes an SMBUS quick read command.
+
+ Executes an SMBUS quick read command on the SMBUS device specified by
SmBusAddress.
+ Only the SMBUS slave address field of SmBusAddress is required.
+ If Status is not NULL, then the status of the executed command is returned
in Status.
+ If PEC is set in SmBusAddress, then ASSERT().
+ If Command in SmBusAddress is not zero, then ASSERT().
+ If Length in SmBusAddress is not zero, then ASSERT().
+ If any reserved bits of SmBusAddress are set, then ASSERT().
+
+ @param SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+ RETURN_SUCCESS The SMBUS command was executed.
+ RETURN_TIMEOUT A timeout occurred while executing the
SMBUS command.
+ RETURN_DEVICE_ERROR The request was not completed
because a failure
+ reflected in the Host Status Register bit. Device
errors are a result
+ of a transaction collision, illegal command field,
unclaimed cycle
+ (host initiated), or bus errors (collisions).
+ RETURN_UNSUPPORTED The SMBus operation is not
supported.
+
+**/
+VOID
+EFIAPI
+SmBusQuickRead (
+ IN UINTN SmBusAddress,
+ OUT RETURN_STATUS *Status OPTIONAL
+ )
+{
+ ASSERT (!SMBUS_LIB_PEC (SmBusAddress));
+ ASSERT (SMBUS_LIB_COMMAND (SmBusAddress) == 0);
+ ASSERT (SMBUS_LIB_LENGTH (SmBusAddress) == 0);
+ ASSERT (SMBUS_LIB_RESERVED (SmBusAddress) == 0);
+ if (Status != NULL) {
+ *Status = RETURN_UNSUPPORTED;
+ }
+}
+
+/**
+ Executes an SMBUS quick write command.
+
+ Executes an SMBUS quick write command on the SMBUS device specified by
SmBusAddress.
+ Only the SMBUS slave address field of SmBusAddress is required.
+ If Status is not NULL, then the status of the executed command is returned
in Status.
+ If PEC is set in SmBusAddress, then ASSERT().
+ If Command in SmBusAddress is not zero, then ASSERT().
+ If Length in SmBusAddress is not zero, then ASSERT().
+ If any reserved bits of SmBusAddress are set, then ASSERT().
+
+ @param SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+ RETURN_SUCCESS The SMBUS command was executed.
+ RETURN_TIMEOUT A timeout occurred while executing the
SMBUS command.
+ RETURN_DEVICE_ERROR The request was not completed
because a failure
+ reflected in the Host Status Register bit. Device
errors are a result
+ of a transaction collision, illegal command field,
unclaimed cycle
+ (host initiated), or bus errors (collisions).
+ RETURN_UNSUPPORTED The SMBus operation is not
supported.
+
+**/
+VOID
+EFIAPI
+SmBusQuickWrite (
+ IN UINTN SmBusAddress,
+ OUT RETURN_STATUS *Status OPTIONAL
+ )
+{
+ ASSERT (!SMBUS_LIB_PEC (SmBusAddress));
+ ASSERT (SMBUS_LIB_COMMAND (SmBusAddress) == 0);
+ ASSERT (SMBUS_LIB_LENGTH (SmBusAddress) == 0);
+ ASSERT (SMBUS_LIB_RESERVED (SmBusAddress) == 0);
+ if (Status != NULL) {
+ *Status = RETURN_UNSUPPORTED;
+ }
+}
+
+/**
+ Executes an SMBUS receive byte command.
+
+ Executes an SMBUS receive byte command on the SMBUS device specified by
SmBusAddress.
+ Only the SMBUS slave address field of SmBusAddress is required.
+ The byte received from the SMBUS is returned.
+ If Status is not NULL, then the status of the executed command is returned
in Status.
+ If Command in SmBusAddress is not zero, then ASSERT().
+ If Length in SmBusAddress is not zero, then ASSERT().
+ If any reserved bits of SmBusAddress are set, then ASSERT().
+
+ @param SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+ RETURN_SUCCESS The SMBUS command was executed.
+ RETURN_TIMEOUT A timeout occurred while executing the
SMBUS command.
+ RETURN_DEVICE_ERROR The request was not completed
because a failure
+ reflected in the Host Status Register bit. Device
errors are a result
+ of a transaction collision, illegal command field,
unclaimed cycle
+ (host initiated), or bus errors (collisions).
+ RETURN_CRC_ERROR The checksum is not correct (PEC is
incorrect)
+ RETURN_UNSUPPORTED The SMBus operation is not
supported.
+
+ @return The byte received from the SMBUS.
+
+**/
+UINT8
+EFIAPI
+SmBusReceiveByte (
+ IN UINTN SmBusAddress,
+ OUT RETURN_STATUS *Status OPTIONAL
+ )
+{
+ ASSERT (SMBUS_LIB_COMMAND (SmBusAddress) == 0);
+ ASSERT (SMBUS_LIB_LENGTH (SmBusAddress) == 0);
+ ASSERT (SMBUS_LIB_RESERVED (SmBusAddress) == 0);
+ if (Status != NULL) {
+ *Status = RETURN_UNSUPPORTED;
+ }
+ return 0;
+}
+
+/**
+ Executes an SMBUS send byte command.
+
+ Executes an SMBUS send byte command on the SMBUS device specified by
SmBusAddress.
+ The byte specified by Value is sent.
+ Only the SMBUS slave address field of SmBusAddress is required. Value is
returned.
+ If Status is not NULL, then the status of the executed command is returned
in Status.
+ If Command in SmBusAddress is not zero, then ASSERT().
+ If Length in SmBusAddress is not zero, then ASSERT().
+ If any reserved bits of SmBusAddress are set, then ASSERT().
+
+ @param SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param Value The 8-bit value to send.
+ @param Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+ RETURN_SUCCESS The SMBUS command was executed.
+ RETURN_TIMEOUT A timeout occurred while executing the
SMBUS command.
+ RETURN_DEVICE_ERROR The request was not completed
because a failure
+ reflected in the Host Status Register bit. Device
errors are a result
+ of a transaction collision, illegal command field,
unclaimed cycle
+ (host initiated), or bus errors (collisions).
+ RETURN_CRC_ERROR The checksum is not correct (PEC is
incorrect)
+ RETURN_UNSUPPORTED The SMBus operation is not
supported.
+
+ @return The parameter of Value.
+
+**/
+UINT8
+EFIAPI
+SmBusSendByte (
+ IN UINTN SmBusAddress,
+ IN UINT8 Value,
+ OUT RETURN_STATUS *Status OPTIONAL
+ )
+{
+ ASSERT (SMBUS_LIB_COMMAND (SmBusAddress) == 0);
+ ASSERT (SMBUS_LIB_LENGTH (SmBusAddress) == 0);
+ ASSERT (SMBUS_LIB_RESERVED (SmBusAddress) == 0);
+ if (Status != NULL) {
+ *Status = RETURN_UNSUPPORTED;
+ }
+ return 0;
+}
+
+/**
+ Executes an SMBUS read data byte command.
+
+ Executes an SMBUS read data byte command on the SMBUS device specified by
SmBusAddress.
+ Only the SMBUS slave address and SMBUS command fields of SmBusAddress are
required.
+ The 8-bit value read from the SMBUS is returned.
+ If Status is not NULL, then the status of the executed command is returned
in Status.
+ If Length in SmBusAddress is not zero, then ASSERT().
+ If any reserved bits of SmBusAddress are set, then ASSERT().
+
+ @param SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+ RETURN_SUCCESS The SMBUS command was executed.
+ RETURN_TIMEOUT A timeout occurred while executing the
SMBUS command.
+ RETURN_DEVICE_ERROR The request was not completed
because a failure
+ reflected in the Host Status Register bit. Device
errors are a result
+ of a transaction collision, illegal command field,
unclaimed cycle
+ (host initiated), or bus errors (collisions).
+ RETURN_CRC_ERROR The checksum is not correct (PEC is
incorrect)
+ RETURN_UNSUPPORTED The SMBus operation is not
supported.
+
+ @return The byte read from the SMBUS.
+
+**/
+UINT8
+EFIAPI
+SmBusReadDataByte (
+ IN UINTN SmBusAddress,
+ OUT RETURN_STATUS *Status OPTIONAL
+ )
+{
+ ASSERT (SMBUS_LIB_LENGTH (SmBusAddress) == 0);
+ ASSERT (SMBUS_LIB_RESERVED (SmBusAddress) == 0);
+ if (Status != NULL) {
+ *Status = RETURN_UNSUPPORTED;
+ }
+ return 0;
+}
+
+/**
+ Executes an SMBUS write data byte command.
+
+ Executes an SMBUS write data byte command on the SMBUS device specified by
SmBusAddress.
+ The 8-bit value specified by Value is written.
+ Only the SMBUS slave address and SMBUS command fields of SmBusAddress are
required.
+ Value is returned.
+ If Status is not NULL, then the status of the executed command is returned
in Status.
+ If Length in SmBusAddress is not zero, then ASSERT().
+ If any reserved bits of SmBusAddress are set, then ASSERT().
+
+ @param SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param Value The 8-bit value to write.
+ @param Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+ RETURN_SUCCESS The SMBUS command was executed.
+ RETURN_TIMEOUT A timeout occurred while executing the
SMBUS command.
+ RETURN_DEVICE_ERROR The request was not completed
because a failure
+ reflected in the Host Status Register bit. Device
errors are a result
+ of a transaction collision, illegal command field,
unclaimed cycle
+ (host initiated), or bus errors (collisions).
+ RETURN_CRC_ERROR The checksum is not correct (PEC is
incorrect)
+ RETURN_UNSUPPORTED The SMBus operation is not
supported.
+
+ @return The parameter of Value.
+
+**/
+UINT8
+EFIAPI
+SmBusWriteDataByte (
+ IN UINTN SmBusAddress,
+ IN UINT8 Value,
+ OUT RETURN_STATUS *Status OPTIONAL
+ )
+{
+ ASSERT (SMBUS_LIB_LENGTH (SmBusAddress) == 0);
+ ASSERT (SMBUS_LIB_RESERVED (SmBusAddress) == 0);
+ if (Status != NULL) {
+ *Status = RETURN_UNSUPPORTED;
+ }
+ return 0;
+}
+
+/**
+ Executes an SMBUS read data word command.
+
+ Executes an SMBUS read data word command on the SMBUS device specified by
SmBusAddress.
+ Only the SMBUS slave address and SMBUS command fields of SmBusAddress are
required.
+ The 16-bit value read from the SMBUS is returned.
+ If Status is not NULL, then the status of the executed command is returned
in Status.
+ If Length in SmBusAddress is not zero, then ASSERT().
+ If any reserved bits of SmBusAddress are set, then ASSERT().
+
+ @param SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+ RETURN_SUCCESS The SMBUS command was executed.
+ RETURN_TIMEOUT A timeout occurred while executing the
SMBUS command.
+ RETURN_DEVICE_ERROR The request was not completed
because a failure
+ reflected in the Host Status Register bit. Device
errors are a result
+ of a transaction collision, illegal command field,
unclaimed cycle
+ (host initiated), or bus errors (collisions).
+ RETURN_CRC_ERROR The checksum is not correct (PEC is
incorrect)
+ RETURN_UNSUPPORTED The SMBus operation is not
supported.
+
+ @return The byte read from the SMBUS.
+
+**/
+UINT16
+EFIAPI
+SmBusReadDataWord (
+ IN UINTN SmBusAddress,
+ OUT RETURN_STATUS *Status OPTIONAL
+ )
+{
+ ASSERT (SMBUS_LIB_LENGTH (SmBusAddress) == 0);
+ ASSERT (SMBUS_LIB_RESERVED (SmBusAddress) == 0);
+ if (Status != NULL) {
+ *Status = RETURN_UNSUPPORTED;
+ }
+ return 0;
+}
+
+/**
+ Executes an SMBUS write data word command.
+
+ Executes an SMBUS write data word command on the SMBUS device specified by
SmBusAddress.
+ The 16-bit value specified by Value is written.
+ Only the SMBUS slave address and SMBUS command fields of SmBusAddress are
required.
+ Value is returned.
+ If Status is not NULL, then the status of the executed command is returned
in Status.
+ If Length in SmBusAddress is not zero, then ASSERT().
+ If any reserved bits of SmBusAddress are set, then ASSERT().
+
+ @param SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param Value The 16-bit value to write.
+ @param Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+ RETURN_SUCCESS The SMBUS command was executed.
+ RETURN_TIMEOUT A timeout occurred while executing the
SMBUS command.
+ RETURN_DEVICE_ERROR The request was not completed
because a failure
+ reflected in the Host Status Register bit. Device
errors are a result
+ of a transaction collision, illegal command field,
unclaimed cycle
+ (host initiated), or bus errors (collisions).
+ RETURN_CRC_ERROR The checksum is not correct (PEC is
incorrect)
+ RETURN_UNSUPPORTED The SMBus operation is not
supported.
+
+ @return The parameter of Value.
+
+**/
+UINT16
+EFIAPI
+SmBusWriteDataWord (
+ IN UINTN SmBusAddress,
+ IN UINT16 Value,
+ OUT RETURN_STATUS *Status OPTIONAL
+ )
+{
+ ASSERT (SMBUS_LIB_LENGTH (SmBusAddress) == 0);
+ ASSERT (SMBUS_LIB_RESERVED (SmBusAddress) == 0);
+ if (Status != NULL) {
+ *Status = RETURN_UNSUPPORTED;
+ }
+ return 0;
+}
+
+/**
+ Executes an SMBUS process call command.
+
+ Executes an SMBUS process call command on the SMBUS device specified by
SmBusAddress.
+ The 16-bit value specified by Value is written.
+ Only the SMBUS slave address and SMBUS command fields of SmBusAddress are
required.
+ The 16-bit value returned by the process call command is returned.
+ If Status is not NULL, then the status of the executed command is returned
in Status.
+ If Length in SmBusAddress is not zero, then ASSERT().
+ If any reserved bits of SmBusAddress are set, then ASSERT().
+
+ @param SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param Value The 16-bit value to write.
+ @param Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+ RETURN_SUCCESS The SMBUS command was executed.
+ RETURN_TIMEOUT A timeout occurred while executing the
SMBUS command.
+ RETURN_DEVICE_ERROR The request was not completed
because a failure
+ reflected in the Host Status Register bit. Device
errors are a result
+ of a transaction collision, illegal command field,
unclaimed cycle
+ (host initiated), or bus errors (collisions).
+ RETURN_CRC_ERROR The checksum is not correct (PEC is
incorrect)
+ RETURN_UNSUPPORTED The SMBus operation is not
supported.
+
+ @return The 16-bit value returned by the process call command.
+
+**/
+UINT16
+EFIAPI
+SmBusProcessCall (
+ IN UINTN SmBusAddress,
+ IN UINT16 Value,
+ OUT RETURN_STATUS *Status OPTIONAL
+ )
+{
+ ASSERT (SMBUS_LIB_LENGTH (SmBusAddress) == 0);
+ ASSERT (SMBUS_LIB_RESERVED (SmBusAddress) == 0);
+ if (Status != NULL) {
+ *Status = RETURN_UNSUPPORTED;
+ }
+ return 0;
+}
+
+/**
+ Executes an SMBUS read block command.
+
+ Executes an SMBUS read block command on the SMBUS device specified by
SmBusAddress.
+ Only the SMBUS slave address and SMBUS command fields of SmBusAddress are
required.
+ Bytes are read from the SMBUS and stored in Buffer.
+ The number of bytes read is returned, and will never return a value larger
than 32-bytes.
+ If Status is not NULL, then the status of the executed command is returned
in Status.
+ It is the caller's responsibility to make sure Buffer is large enough for
the total number of bytes read.
+ SMBUS supports a maximum transfer size of 32 bytes, so Buffer does not need
to be any larger than 32 bytes.
+ If Length in SmBusAddress is not zero, then ASSERT().
+ If Buffer is NULL, then ASSERT().
+ If any reserved bits of SmBusAddress are set, then ASSERT().
+
+ @param SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param Buffer Pointer to the buffer to store the bytes read from the
SMBUS.
+ @param Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+ RETURN_SUCCESS The SMBUS command was executed.
+ RETURN_TIMEOUT A timeout occurred while executing the
SMBUS command.
+ RETURN_DEVICE_ERROR The request was not completed
because a failure
+ reflected in the Host Status Register bit. Device
errors are a result
+ of a transaction collision, illegal command field,
unclaimed cycle
+ (host initiated), or bus errors (collisions).
+ RETURN_CRC_ERROR The checksum is not correct (PEC is
incorrect)
+ RETURN_UNSUPPORTED The SMBus operation is not
supported.
+
+ @return The number of bytes read.
+
+**/
+UINTN
+EFIAPI
+SmBusReadBlock (
+ IN UINTN SmBusAddress,
+ OUT VOID *Buffer,
+ OUT RETURN_STATUS *Status OPTIONAL
+ )
+{
+ ASSERT (Buffer != NULL);
+ ASSERT (SMBUS_LIB_LENGTH (SmBusAddress) == 0);
+ ASSERT (SMBUS_LIB_RESERVED (SmBusAddress) == 0);
+ if (Status != NULL) {
+ *Status = RETURN_UNSUPPORTED;
+ }
+ return 0;
+}
+
+/**
+ Executes an SMBUS write block command.
+
+ Executes an SMBUS write block command on the SMBUS device specified by
SmBusAddress.
+ The SMBUS slave address, SMBUS command, and SMBUS length fields of
SmBusAddress are required.
+ Bytes are written to the SMBUS from Buffer.
+ The number of bytes written is returned, and will never return a value
larger than 32-bytes.
+ If Status is not NULL, then the status of the executed command is returned
in Status.
+ If Length in SmBusAddress is zero or greater than 32, then ASSERT().
+ If Buffer is NULL, then ASSERT().
+ If any reserved bits of SmBusAddress are set, then ASSERT().
+
+ @param SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param Buffer Pointer to the buffer to store the bytes read from the
SMBUS.
+ @param Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+ RETURN_TIMEOUT A timeout occurred while executing the
SMBUS command.
+ RETURN_DEVICE_ERROR The request was not completed
because a failure
+ reflected in the Host Status Register bit. Device
errors are a result
+ of a transaction collision, illegal command field,
unclaimed cycle
+ (host initiated), or bus errors (collisions).
+ RETURN_CRC_ERROR The checksum is not correct (PEC is
incorrect)
+ RETURN_UNSUPPORTED The SMBus operation is not
supported.
+
+ @return The number of bytes written.
+
+**/
+UINTN
+EFIAPI
+SmBusWriteBlock (
+ IN UINTN SmBusAddress,
+ OUT VOID *Buffer,
+ OUT RETURN_STATUS *Status OPTIONAL
+ )
+{
+ ASSERT (Buffer != NULL);
+ ASSERT (SMBUS_LIB_LENGTH (SmBusAddress) >= 1);
+ ASSERT (SMBUS_LIB_LENGTH (SmBusAddress) <= 32);
+ ASSERT (SMBUS_LIB_RESERVED (SmBusAddress) == 0);
+ if (Status != NULL) {
+ *Status = RETURN_UNSUPPORTED;
+ }
+ return 0;
+}
+
+/**
+ Executes an SMBUS block process call command.
+
+ Executes an SMBUS block process call command on the SMBUS device specified
by SmBusAddress.
+ The SMBUS slave address, SMBUS command, and SMBUS length fields of
SmBusAddress are required.
+ Bytes are written to the SMBUS from WriteBuffer. Bytes are then read from
the SMBUS into ReadBuffer.
+ If Status is not NULL, then the status of the executed command is returned
in Status.
+ It is the caller's responsibility to make sure ReadBuffer is large enough
for the total number of bytes read.
+ SMBUS supports a maximum transfer size of 32 bytes, so Buffer does not need
to be any larger than 32 bytes.
+ If Length in SmBusAddress is zero or greater than 32, then ASSERT().
+ If WriteBuffer is NULL, then ASSERT().
+ If ReadBuffer is NULL, then ASSERT().
+ If any reserved bits of SmBusAddress are set, then ASSERT().
+
+ @param SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param WriteBuffer Pointer to the buffer of bytes to write to the SMBUS.
+ @param ReadBuffer Pointer to the buffer of bytes to read from the SMBUS.
+ @param Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+ RETURN_TIMEOUT A timeout occurred while executing the
SMBUS command.
+ RETURN_DEVICE_ERROR The request was not completed
because a failure
+ reflected in the Host Status Register bit. Device
errors are a result
+ of a transaction collision, illegal command field,
unclaimed cycle
+ (host initiated), or bus errors (collisions).
+ RETURN_CRC_ERROR The checksum is not correct (PEC is
incorrect)
+ RETURN_UNSUPPORTED The SMBus operation is not
supported.
+
+ @return The number of bytes written.
+
+**/
+UINTN
+EFIAPI
+SmBusBlockProcessCall (
+ IN UINTN SmBusAddress,
+ IN VOID *WriteBuffer,
+ OUT VOID *ReadBuffer,
+ OUT RETURN_STATUS *Status OPTIONAL
+ )
+{
+ ASSERT (WriteBuffer != NULL);
+ ASSERT (ReadBuffer != NULL);
+ ASSERT (SMBUS_LIB_LENGTH (SmBusAddress) >= 1);
+ ASSERT (SMBUS_LIB_LENGTH (SmBusAddress) <= 32);
+ ASSERT (SMBUS_LIB_RESERVED (SmBusAddress) == 0);
+ if (Status != NULL) {
+ *Status = RETURN_UNSUPPORTED;
+ }
+ return 0;
+}
Added: trunk/edk2/MdePkg/Library/BaseSmbusLibNull/BaseSmbusLibNull.inf
===================================================================
--- trunk/edk2/MdePkg/Library/BaseSmbusLibNull/BaseSmbusLibNull.inf
(rev 0)
+++ trunk/edk2/MdePkg/Library/BaseSmbusLibNull/BaseSmbusLibNull.inf
2013-11-08 02:59:05 UTC (rev 14830)
@@ -0,0 +1,34 @@
+## @file
+# Null implementation of the SMBUS Library.
+#
+# Copyright (c) 2013, Intel Corporation. All rights reserved.<BR>
+#
+# This program and the accompanying materials
+# are licensed and made available under the terms and conditions of the BSD
License
+# which accompanies this distribution. The full text of the license may be
found at
+# http://opensource.org/licenses/bsd-license.php.
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
IMPLIED.
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = BaseSmbusLibNull
+ FILE_GUID = E2ECA273-A1C0-407E-9A5C-F10C55142196
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = SmbusLib
+
+#
+# VALID_ARCHITECTURES = IA32 X64 IPF EBC
+#
+
+[Sources]
+ BaseSmbusLibNull.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ DebugLib
Modified: trunk/edk2/MdePkg/MdePkg.dsc
===================================================================
--- trunk/edk2/MdePkg/MdePkg.dsc 2013-11-08 02:23:27 UTC (rev 14829)
+++ trunk/edk2/MdePkg/MdePkg.dsc 2013-11-08 02:59:05 UTC (rev 14830)
@@ -79,6 +79,7 @@
MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
MdePkg/Library/BaseTimerLibNullTemplate/BaseTimerLibNullTemplate.inf
MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf
+ MdePkg/Library/BaseSmbusLibNull/BaseSmbusLibNull.inf
MdePkg/Library/DxeCoreEntryPoint/DxeCoreEntryPoint.inf
MdePkg/Library/DxeCoreHobLib/DxeCoreHobLib.inf
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