From: "Nate DeSimone" <nathaniel.l.desimone@intel.com>
To: "Kubacki, Michael A" <michael.a.kubacki@intel.com>,
"devel@edk2.groups.io" <devel@edk2.groups.io>
Cc: "Chaganty, Rangasai V" <rangasai.v.chaganty@intel.com>,
"Chiu, Chasel" <chasel.chiu@intel.com>,
"Gao, Liming" <liming.gao@intel.com>,
"Kinney, Michael D" <michael.d.kinney@intel.com>,
"Sinha, Ankit" <ankit.sinha@intel.com>
Subject: Re: [edk2-platforms][PATCH V1 17/37] CoffeelakeSiliconPkg/Pch: Add Base library instances
Date: Sat, 17 Aug 2019 00:52:38 +0000 [thread overview]
Message-ID: <02A34F284D1DA44BB705E61F7180EF0AAEE129A9@ORSMSX114.amr.corp.intel.com> (raw)
In-Reply-To: <20190817001603.30632-18-michael.a.kubacki@intel.com>
Reviewed-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
-----Original Message-----
From: Kubacki, Michael A
Sent: Friday, August 16, 2019 5:16 PM
To: devel@edk2.groups.io
Cc: Chaganty, Rangasai V <rangasai.v.chaganty@intel.com>; Chiu, Chasel <chasel.chiu@intel.com>; Desimone, Nathaniel L <nathaniel.l.desimone@intel.com>; Gao, Liming <liming.gao@intel.com>; Kinney, Michael D <michael.d.kinney@intel.com>; Sinha, Ankit <ankit.sinha@intel.com>
Subject: [edk2-platforms][PATCH V1 17/37] CoffeelakeSiliconPkg/Pch: Add Base library instances
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=2082
Adds PCH Base library class instances.
* BaseResetSystemLib
* BaseSmbusLib
Cc: Sai Chaganty <rangasai.v.chaganty@intel.com>
Cc: Chasel Chiu <chasel.chiu@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Ankit Sinha <ankit.sinha@intel.com>
Signed-off-by: Michael Kubacki <michael.a.kubacki@intel.com>
---
Silicon/Intel/CoffeelakeSiliconPkg/Pch/Library/BaseResetSystemLib/BaseResetSystemLib.inf | 38 +
Silicon/Intel/CoffeelakeSiliconPkg/Pch/Library/BaseSmbusLib/BaseSmbusLib.inf | 39 +
Silicon/Intel/CoffeelakeSiliconPkg/Pch/Library/BaseResetSystemLib/BaseResetSystemLib.c | 153 +++
Silicon/Intel/CoffeelakeSiliconPkg/Pch/Library/BaseSmbusLib/BaseSmbusLib.c | 993 ++++++++++++++++++++
4 files changed, 1223 insertions(+)
diff --git a/Silicon/Intel/CoffeelakeSiliconPkg/Pch/Library/BaseResetSystemLib/BaseResetSystemLib.inf b/Silicon/Intel/CoffeelakeSiliconPkg/Pch/Library/BaseResetSystemLib/BaseResetSystemLib.inf
new file mode 100644
index 0000000000..8d68f2dd83
--- /dev/null
+++ b/Silicon/Intel/CoffeelakeSiliconPkg/Pch/Library/BaseResetSystemLib/
+++ BaseResetSystemLib.inf
@@ -0,0 +1,38 @@
+## @file
+# Component description file for Intel Ich7 Reset System Library.
+#
+# Copyright (c) 2019 Intel Corporation. All rights reserved. <BR> # #
+SPDX-License-Identifier: BSD-2-Clause-Patent # ##
+
+[Defines]
+INF_VERSION = 0x00010017
+BASE_NAME = BaseResetSystemLib
+FILE_GUID = D4FF05AA-3C7D-4B8A-A1EE-AA5EFA0B1732
+VERSION_STRING = 1.0
+MODULE_TYPE = BASE
+UEFI_SPECIFICATION_VERSION = 2.00
+LIBRARY_CLASS = ResetSystemLib
+CONSTRUCTOR = BaseResetSystemLibConstructor # # The following
+information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 IPF
+#
+
+[LibraryClasses]
+IoLib
+DebugLib
+PmcLib
+
+
+[Packages]
+MdePkg/MdePkg.dec
+CoffeelakeSiliconPkg/SiPkg.dec
+
+
+[Sources]
+BaseResetSystemLib.c
+
diff --git a/Silicon/Intel/CoffeelakeSiliconPkg/Pch/Library/BaseSmbusLib/BaseSmbusLib.inf b/Silicon/Intel/CoffeelakeSiliconPkg/Pch/Library/BaseSmbusLib/BaseSmbusLib.inf
new file mode 100644
index 0000000000..f3388a2624
--- /dev/null
+++ b/Silicon/Intel/CoffeelakeSiliconPkg/Pch/Library/BaseSmbusLib/BaseSm
+++ busLib.inf
@@ -0,0 +1,39 @@
+## @file
+# Component description file for PCH Smbus Library.
+#
+# SMBUS Library that layers on top of the I/O Library to directly #
+access a standard SMBUS host controller.
+#
+# Copyright (c) 2019 Intel Corporation. All rights reserved. <BR> # #
+SPDX-License-Identifier: BSD-2-Clause-Patent # ##
+
+[Defines]
+INF_VERSION = 0x00010017
+BASE_NAME = BaseSmbusLib
+FILE_GUID = 5C4D0430-F81B-42D3-BB88-4A6CD2796FF8
+VERSION_STRING = 1.0
+MODULE_TYPE = BASE
+LIBRARY_CLASS = SmbusLib
+CONSTRUCTOR = BaseSmbusLibConstructor
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 IPF EBC #
+
+[LibraryClasses]
+BaseLib
+DebugLib
+IoLib
+PciSegmentLib
+
+[Packages]
+MdePkg/MdePkg.dec
+CoffeelakeSiliconPkg/SiPkg.dec
+
+[Sources]
+BaseSmbusLib.c
diff --git a/Silicon/Intel/CoffeelakeSiliconPkg/Pch/Library/BaseResetSystemLib/BaseResetSystemLib.c b/Silicon/Intel/CoffeelakeSiliconPkg/Pch/Library/BaseResetSystemLib/BaseResetSystemLib.c
new file mode 100644
index 0000000000..a603f5e794
--- /dev/null
+++ b/Silicon/Intel/CoffeelakeSiliconPkg/Pch/Library/BaseResetSystemLib/
+++ BaseResetSystemLib.c
@@ -0,0 +1,153 @@
+/** @file
+ System reset library services.
+
+ Copyright (c) 2019 Intel Corporation. All rights reserved. <BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent **/
+
+#include <Uefi.h>
+#include <Library/IoLib.h>
+#include <Library/DebugLib.h>
+#include <Library/ResetSystemLib.h>
+#include <Library/PmcLib.h>
+#include <Register/PchRegsLpc.h>
+#include <Register/PchRegsPmc.h>
+
+GLOBAL_REMOVE_IF_UNREFERENCED UINT16 mBaseResetSystemABase;
+
+/**
+ Calling this function causes a system-wide reset. This sets
+ all circuitry within the system to its initial state. This type of
+reset
+ is asynchronous to system operation and operates without regard to
+ cycle boundaries.
+
+ System reset should not return, if it returns, it means the system
+does
+ not support cold reset.
+**/
+VOID
+EFIAPI
+ResetCold (
+ VOID
+ )
+{
+ IoWrite8 (R_PCH_IO_RST_CNT, V_PCH_IO_RST_CNT_FULLRESET); }
+
+/**
+ Calling this function causes a system-wide initialization. The
+processors
+ are set to their initial state, and pending cycles are not corrupted.
+
+ System reset should not return, if it returns, it means the system
+does
+ not support warm reset.
+**/
+VOID
+EFIAPI
+ResetWarm (
+ VOID
+ )
+{
+ IoWrite8 (R_PCH_IO_RST_CNT, V_PCH_IO_RST_CNT_HARDRESET); }
+
+/**
+ Calling this function causes the system to enter a power state
+equivalent
+ to the ACPI G2/S5 or G3 states.
+
+ System shutdown should not return, if it returns, it means the system
+does
+ not support shut down reset.
+**/
+VOID
+EFIAPI
+ResetShutdown (
+ VOID
+ )
+{
+ UINT16 ABase;
+ UINT32 Data32;
+
+ ABase = mBaseResetSystemABase;
+ if (ABase == 0) {
+ ABase = PmcGetAcpiBase ();
+ }
+ ///
+ /// Firstly, GPE0_EN should be disabled to avoid any GPI waking up
+ the system from S5 ///
+ IoWrite32 (ABase + R_ACPI_IO_GPE0_EN_127_96, 0);
+
+ ///
+ /// Secondly, PwrSts register must be cleared /// /// Write a "1"
+ to bit[8] of power button status register at /// (PM_BASE +
+ PM1_STS_OFFSET) to clear this bit ///
+ IoWrite16 (ABase + R_ACPI_IO_PM1_STS, B_ACPI_IO_PM1_STS_PWRBTN);
+
+ ///
+ /// Finally, transform system into S5 sleep state ///
+ Data32 = IoRead32 (ABase + R_ACPI_IO_PM1_CNT);
+
+ Data32 = (UINT32) ((Data32 &~(B_ACPI_IO_PM1_CNT_SLP_TYP +
+ B_ACPI_IO_PM1_CNT_SLP_EN)) | V_ACPI_IO_PM1_CNT_S5);
+
+ IoWrite32 (ABase + R_ACPI_IO_PM1_CNT, Data32);
+
+ Data32 = Data32 | B_ACPI_IO_PM1_CNT_SLP_EN;
+
+ IoWrite32 (ABase + R_ACPI_IO_PM1_CNT, Data32);
+
+ return;
+}
+
+/**
+ Calling this function causes the system to enter a power state for platform specific.
+
+ @param[in] DataSize The size of ResetData in bytes.
+ @param[in] ResetData Optional element used to introduce a platform specific reset.
+ The exact type of the reset is defined by the EFI_GUID that follows
+ the Null-terminated Unicode string.
+
+**/
+VOID
+EFIAPI
+ResetPlatformSpecific (
+ IN UINTN DataSize,
+ IN VOID *ResetData OPTIONAL
+ )
+{
+ IoWrite8 (R_PCH_IO_RST_CNT, V_PCH_IO_RST_CNT_FULLRESET); }
+
+/**
+ Calling this function causes the system to enter a power state for capsule update.
+
+ Reset update should not return, if it returns, it means the system
+ does not support capsule update.
+
+**/
+VOID
+EFIAPI
+EnterS3WithImmediateWake (
+ VOID
+ )
+{
+ ASSERT (FALSE);
+}
+
+/**
+ The library constructuor.
+
+ The function does the necessary initialization work for this library instance.
+
+ @retval EFI_SUCCESS The function always return EFI_SUCCESS for now.
+**/
+EFI_STATUS
+EFIAPI
+BaseResetSystemLibConstructor (
+ VOID
+ )
+{
+ mBaseResetSystemABase = PmcGetAcpiBase ();
+
+ return EFI_SUCCESS;
+}
diff --git a/Silicon/Intel/CoffeelakeSiliconPkg/Pch/Library/BaseSmbusLib/BaseSmbusLib.c b/Silicon/Intel/CoffeelakeSiliconPkg/Pch/Library/BaseSmbusLib/BaseSmbusLib.c
new file mode 100644
index 0000000000..3d6386d433
--- /dev/null
+++ b/Silicon/Intel/CoffeelakeSiliconPkg/Pch/Library/BaseSmbusLib/BaseSm
+++ busLib.c
@@ -0,0 +1,993 @@
+/** @file
+ PCH SMBUS library implementation built upon I/O library.
+
+ Copyright (c) 2019 Intel Corporation. All rights reserved. <BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent **/
+
+#include <Base.h>
+#include <Library/SmbusLib.h>
+#include <Library/BaseLib.h>
+#include <Library/IoLib.h>
+#include <Library/PciLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PciSegmentLib.h>
+#include <Register/PchRegs.h>
+#include <Register/PchRegsSmbus.h>
+
+GLOBAL_REMOVE_IF_UNREFERENCED UINT16 mSmbusIoBase = 0;
+
+/**
+ Gets Io port base address of Smbus Host Controller.
+
+ @retval The Io port base address of Smbus host controller.
+
+**/
+UINT16
+InternalGetSmbusIoPortBaseAddress (
+ VOID
+ )
+{
+ UINT64 SmbusPciBase;
+ UINT16 IoPortBaseAddress;
+
+ if (mSmbusIoBase != 0) {
+ return mSmbusIoBase;
+ }
+
+ SmbusPciBase = PCI_SEGMENT_LIB_ADDRESS (
+ DEFAULT_PCI_SEGMENT_NUMBER_PCH,
+ DEFAULT_PCI_BUS_NUMBER_PCH,
+ PCI_DEVICE_NUMBER_PCH_SMBUS,
+ PCI_FUNCTION_NUMBER_PCH_SMBUS,
+ 0
+ );
+ IoPortBaseAddress = (UINT16) PciSegmentRead32 (SmbusPciBase +
+ R_SMBUS_CFG_BASE);
+
+ //
+ // Make sure that the IO port base address has been properly set.
+ //
+ if ((IoPortBaseAddress == 0) || (IoPortBaseAddress == 0xFFFF)) {
+ ASSERT (FALSE);
+ return 0;
+ }
+
+ IoPortBaseAddress &= B_SMBUS_CFG_BASE_BAR; mSmbusIoBase =
+ IoPortBaseAddress;
+
+ return IoPortBaseAddress;
+}
+
+
+/**
+ Acquires the ownership of SMBUS.
+
+ This internal function reads the host state register.
+ If the SMBUS is not available, RETURN_TIMEOUT is returned;
+ Otherwise, it performs some basic initializations and returns
+ RETURN_SUCCESS.
+
+ @param[in] IoPortBaseAddress The Io port base address of Smbus Host controller.
+
+ @retval RETURN_SUCCESS The SMBUS command was executed successfully.
+ @retval RETURN_TIMEOUT A timeout occurred while executing the SMBUS command.
+
+**/
+RETURN_STATUS
+InternalSmBusAcquire (
+ IN UINT16 IoPortBaseAddress
+ )
+{
+ UINT8 HostStatus;
+
+ HostStatus = IoRead8 (IoPortBaseAddress + R_SMBUS_IO_HSTS); if
+ ((HostStatus & B_SMBUS_IO_IUS) != 0) {
+ return RETURN_TIMEOUT;
+ } else if ((HostStatus & B_SMBUS_IO_HBSY) != 0) {
+ //
+ // Clear host status register and exit.
+ //
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_HSTS, B_SMBUS_IO_HSTS_ALL);
+ return RETURN_TIMEOUT;
+ }
+ //
+ // Clear out any odd status information (Will Not Clear In Use).
+ //
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_HSTS, HostStatus);
+
+ return RETURN_SUCCESS;
+}
+
+/**
+ Starts the SMBUS transaction and waits until the end.
+
+ This internal function start the SMBUS transaction and waits until
+ the transaction of SMBUS is over by polling the INTR bit of Host status register.
+ If the SMBUS is not available, RETURN_TIMEOUT is returned;
+ Otherwise, it performs some basic initializations and returns
+ RETURN_SUCCESS.
+
+ @param[in] IoPortBaseAddress The Io port base address of Smbus Host controller.
+ @param[in] HostControl The Host control command to start SMBUS transaction.
+
+ @retval RETURN_SUCCESS The SMBUS command was executed successfully.
+ @retval RETURN_CRC_ERROR The checksum is not correct (PEC is incorrect).
+ @retval 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_STATUS
+InternalSmBusStart (
+ IN UINT16 IoPortBaseAddress,
+ IN UINT8 HostControl
+ )
+{
+ UINT8 HostStatus;
+ UINT8 AuxiliaryStatus;
+
+ //
+ // Set Host Control Register (Initiate Operation, Interrupt disabled).
+ //
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_HCTL, (UINT8)(HostControl +
+ B_SMBUS_IO_START));
+
+ do {
+ //
+ // Poll INTR bit of Host Status Register.
+ //
+ HostStatus = IoRead8 (IoPortBaseAddress + R_SMBUS_IO_HSTS); }
+ while ((HostStatus & (B_SMBUS_IO_INTR | B_SMBUS_IO_ERROR |
+ B_SMBUS_IO_BYTE_DONE_STS)) == 0);
+
+ if ((HostStatus & B_SMBUS_IO_ERROR) == 0) {
+ return RETURN_SUCCESS;
+ }
+ //
+ // Clear error bits of Host Status Register.
+ //
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_HSTS, B_SMBUS_IO_ERROR); //
+ // Read Auxiliary Status Register to judge CRC error.
+ //
+ AuxiliaryStatus = IoRead8 (IoPortBaseAddress + R_SMBUS_IO_AUXS); if
+ ((AuxiliaryStatus & B_SMBUS_IO_CRCE) != 0) {
+ return RETURN_CRC_ERROR;
+ }
+
+ return RETURN_DEVICE_ERROR;
+}
+
+/**
+ Executes an SMBUS quick, byte or word command.
+
+ This internal function executes an SMBUS quick, byte or word commond.
+ If Status is not NULL, then the status of the executed command is returned in Status.
+
+ @param[in] HostControl The value of Host Control Register to set.
+ @param[in] SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param[in] Value The byte/word write to the SMBUS.
+ @param[out] Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+
+ @retval The byte/word read from the SMBUS.
+
+**/
+UINT16
+InternalSmBusNonBlock (
+ IN UINT8 HostControl,
+ IN UINTN SmBusAddress,
+ IN UINT16 Value,
+ OUT RETURN_STATUS *Status
+ )
+{
+ RETURN_STATUS ReturnStatus;
+ UINT16 IoPortBaseAddress;
+ UINT8 AuxiliaryControl;
+
+ IoPortBaseAddress = InternalGetSmbusIoPortBaseAddress ();
+
+ //
+ // Try to acquire the ownership of SMBUS.
+ //
+ ReturnStatus = InternalSmBusAcquire (IoPortBaseAddress); if
+ (RETURN_ERROR (ReturnStatus)) {
+ goto Done;
+ }
+ //
+ // Set the appropriate Host Control Register and auxiliary Control Register.
+ //
+ AuxiliaryControl = 0;
+ if (SMBUS_LIB_PEC (SmBusAddress)) {
+ AuxiliaryControl |= B_SMBUS_IO_AAC; } // // Set Host Commond
+ Register.
+ //
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_HCMD, (UINT8)
+ SMBUS_LIB_COMMAND (SmBusAddress)); // // Write value to Host Data 0
+ and Host Data 1 Registers.
+ //
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_HD0, (UINT8) Value);
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_HD1, (UINT8) (Value >> 8));
+ // // Set Auxiliary Control Regiester.
+ //
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_AUXC, AuxiliaryControl); //
+ // Set SMBUS slave address for the device to send/receive from.
+ //
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_TSA, (UINT8) SmBusAddress);
+ // // Start the SMBUS transaction and wait for the end.
+ //
+ ReturnStatus = InternalSmBusStart (IoPortBaseAddress, HostControl);
+ // // Read value from Host Data 0 and Host Data 1 Registers.
+ //
+ Value = (UINT16)(IoRead8 (IoPortBaseAddress + R_SMBUS_IO_HD1) << 8);
+ Value = (UINT16)(Value | IoRead8 (IoPortBaseAddress +
+ R_SMBUS_IO_HD0)); // // Clear Host Status Register and Auxiliary
+ Status Register.
+ //
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_HSTS, B_SMBUS_IO_HSTS_ALL);
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_AUXS, B_SMBUS_IO_CRCE);
+
+Done:
+ if (Status != NULL) {
+ *Status = ReturnStatus;
+ }
+
+ return Value;
+}
+
+/**
+ 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[in] SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param[out] Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+
+**/
+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 (SMBUS_LIB_PEC (SmBusAddress) ||
+ (SMBUS_LIB_COMMAND (SmBusAddress) != 0) ||
+ (SMBUS_LIB_LENGTH (SmBusAddress) != 0) ||
+ (SMBUS_LIB_RESERVED (SmBusAddress) != 0)) {
+ if (Status != NULL) {
+ *Status = RETURN_INVALID_PARAMETER;
+ }
+ return;
+ }
+
+ InternalSmBusNonBlock (
+ V_SMBUS_IO_SMB_CMD_QUICK,
+ SmBusAddress | B_SMBUS_IO_READ,
+ 0,
+ Status
+ );
+}
+
+/**
+ 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[in] SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param[out] Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+
+**/
+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 (SMBUS_LIB_PEC (SmBusAddress) ||
+ (SMBUS_LIB_COMMAND (SmBusAddress) != 0) ||
+ (SMBUS_LIB_LENGTH (SmBusAddress) != 0) ||
+ (SMBUS_LIB_RESERVED (SmBusAddress) != 0)) {
+ if (Status != NULL) {
+ *Status = RETURN_INVALID_PARAMETER;
+ }
+ return;
+ }
+
+ InternalSmBusNonBlock (
+ V_SMBUS_IO_SMB_CMD_QUICK,
+ SmBusAddress | B_SMBUS_IO_WRITE,
+ 0,
+ Status
+ );
+}
+
+/**
+ 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[in] SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param[out] Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+
+ @retval 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 ((SMBUS_LIB_COMMAND (SmBusAddress) != 0) ||
+ (SMBUS_LIB_LENGTH (SmBusAddress) != 0) ||
+ (SMBUS_LIB_RESERVED (SmBusAddress) != 0)) {
+ if (Status != NULL) {
+ *Status = RETURN_INVALID_PARAMETER;
+ }
+ return 0;
+ }
+
+ return (UINT8) InternalSmBusNonBlock (
+ V_SMBUS_IO_SMB_CMD_BYTE,
+ SmBusAddress | B_SMBUS_IO_READ,
+ 0,
+ Status
+ );
+}
+
+/**
+ 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[in] SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param[in] Value The 8-bit value to send.
+ @param[out] Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+
+ @retval 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 ((SMBUS_LIB_COMMAND (SmBusAddress) != 0) ||
+ (SMBUS_LIB_LENGTH (SmBusAddress) != 0) ||
+ (SMBUS_LIB_RESERVED (SmBusAddress) != 0)) {
+ if (Status != NULL) {
+ *Status = RETURN_INVALID_PARAMETER;
+ }
+ return 0;
+ }
+
+ return (UINT8) InternalSmBusNonBlock (
+ V_SMBUS_IO_SMB_CMD_BYTE,
+ SmBusAddress | B_SMBUS_IO_WRITE,
+ Value,
+ Status
+ );
+}
+
+/**
+ 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[in] SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param[out] Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+
+ @retval 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 ((SMBUS_LIB_LENGTH (SmBusAddress) != 0) ||
+ (SMBUS_LIB_RESERVED (SmBusAddress) != 0)) {
+ if (Status != NULL) {
+ *Status = RETURN_INVALID_PARAMETER;
+ }
+ return 0;
+ }
+
+ return (UINT8) InternalSmBusNonBlock (
+ V_SMBUS_IO_SMB_CMD_BYTE_DATA,
+ SmBusAddress | B_SMBUS_IO_READ,
+ 0,
+ Status
+ );
+}
+
+/**
+ 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[in] SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param[in] Value The 8-bit value to write.
+ @param[out] Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+
+ @retval 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 ((SMBUS_LIB_LENGTH (SmBusAddress) != 0) ||
+ (SMBUS_LIB_RESERVED (SmBusAddress) != 0)) {
+ if (Status != NULL) {
+ *Status = RETURN_INVALID_PARAMETER;
+ }
+ return 0;
+ }
+
+ return (UINT8) InternalSmBusNonBlock (
+ V_SMBUS_IO_SMB_CMD_BYTE_DATA,
+ SmBusAddress | B_SMBUS_IO_WRITE,
+ Value,
+ Status
+ );
+}
+
+/**
+ 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[in] SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param[out] Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+
+ @retval 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 ((SMBUS_LIB_LENGTH (SmBusAddress) != 0) ||
+ (SMBUS_LIB_RESERVED (SmBusAddress) != 0)) {
+ if (Status != NULL) {
+ *Status = RETURN_INVALID_PARAMETER;
+ }
+ return 0;
+ }
+
+ return InternalSmBusNonBlock (
+ V_SMBUS_IO_SMB_CMD_WORD_DATA,
+ SmBusAddress | B_SMBUS_IO_READ,
+ 0,
+ Status
+ );
+}
+
+/**
+ 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[in] SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param[in] Value The 16-bit value to write.
+ @param[out] Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+
+ @retval 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 ((SMBUS_LIB_LENGTH (SmBusAddress) != 0) ||
+ (SMBUS_LIB_RESERVED (SmBusAddress) != 0)) {
+ if (Status != NULL) {
+ *Status = RETURN_INVALID_PARAMETER;
+ }
+ return 0;
+ }
+
+ return InternalSmBusNonBlock (
+ V_SMBUS_IO_SMB_CMD_WORD_DATA,
+ SmBusAddress | B_SMBUS_IO_WRITE,
+ Value,
+ Status
+ );
+}
+
+/**
+ 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[in] SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param[in] Value The 16-bit value to write.
+ @param[out] Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+
+ @retval 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 ((SMBUS_LIB_LENGTH (SmBusAddress) != 0) ||
+ (SMBUS_LIB_RESERVED (SmBusAddress) != 0)) {
+ if (Status != NULL) {
+ *Status = RETURN_INVALID_PARAMETER;
+ }
+ return 0;
+ }
+
+ return InternalSmBusNonBlock (
+ V_SMBUS_IO_SMB_CMD_PROCESS_CALL,
+ SmBusAddress | B_SMBUS_IO_WRITE,
+ Value,
+ Status
+ );
+}
+
+/**
+ Executes an SMBUS block command.
+
+ Executes an SMBUS block read, block write and block write-block read
+ command on the SMBUS device specified by SmBusAddress.
+ 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.
+
+ @param[in] HostControl The value of Host Control Register to set.
+ @param[in] SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param[in] WriteBuffer Pointer to the buffer of bytes to write to the SMBUS.
+ @param[out] ReadBuffer Pointer to the buffer of bytes to read from the SMBUS.
+ @param[out] Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+
+ @retval The number of bytes read from the SMBUS.
+
+**/
+UINTN
+InternalSmBusBlock (
+ IN UINT8 HostControl,
+ IN UINTN SmBusAddress,
+ IN UINT8 *WriteBuffer,
+ OUT UINT8 *ReadBuffer,
+ OUT RETURN_STATUS *Status
+ )
+{
+ RETURN_STATUS ReturnStatus;
+ UINTN Index;
+ UINTN BytesCount;
+ UINT16 IoPortBaseAddress;
+ UINT8 AuxiliaryControl;
+
+ IoPortBaseAddress = InternalGetSmbusIoPortBaseAddress ();
+
+ BytesCount = SMBUS_LIB_LENGTH (SmBusAddress);
+
+ //
+ // Try to acquire the ownership of SMBUS.
+ //
+ ReturnStatus = InternalSmBusAcquire (IoPortBaseAddress); if
+ (RETURN_ERROR (ReturnStatus)) {
+ goto Done;
+ }
+ //
+ // Set the appropriate Host Control Register and auxiliary Control Register.
+ //
+ AuxiliaryControl = B_SMBUS_IO_E32B;
+ if (SMBUS_LIB_PEC (SmBusAddress)) {
+ AuxiliaryControl |= B_SMBUS_IO_AAC; } // // Set Host Command
+ Register.
+ //
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_HCMD, (UINT8)
+ SMBUS_LIB_COMMAND (SmBusAddress)); // // Set Auxiliary Control
+ Regiester.
+ //
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_AUXC, AuxiliaryControl); //
+ // Clear byte pointer of 32-byte buffer.
+ //
+ IoRead8 (IoPortBaseAddress + R_SMBUS_IO_HCTL);
+
+ if (WriteBuffer != NULL) {
+ //
+ // Write the number of block to Host Block Data Byte Register.
+ //
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_HD0, (UINT8) BytesCount);
+ //
+ // Write data block to Host Block Data Register.
+ //
+ for (Index = 0; Index < BytesCount; Index++) {
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_HBD, WriteBuffer[Index]);
+ }
+ }
+ //
+ // Set SMBUS slave address for the device to send/receive from.
+ //
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_TSA, (UINT8) SmBusAddress);
+ // // Start the SMBUS transaction and wait for the end.
+ //
+ ReturnStatus = InternalSmBusStart (IoPortBaseAddress, HostControl);
+ if (RETURN_ERROR (ReturnStatus)) {
+ goto Done;
+ }
+
+ if (ReadBuffer != NULL) {
+ //
+ // Read the number of block from host block data byte register.
+ //
+ BytesCount = IoRead8 (IoPortBaseAddress + R_SMBUS_IO_HD0);
+ //
+ // Write data block from Host Block Data Register.
+ //
+ for (Index = 0; Index < BytesCount; Index++) {
+ ReadBuffer[Index] = IoRead8 (IoPortBaseAddress + R_SMBUS_IO_HBD);
+ }
+ }
+
+Done:
+ //
+ // Clear Host Status Register and Auxiliary Status Register.
+ //
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_HSTS, B_SMBUS_IO_HSTS_ALL);
+ IoWrite8 (IoPortBaseAddress + R_SMBUS_IO_AUXS, B_SMBUS_IO_CRCE);
+
+ if (Status != NULL) {
+ *Status = ReturnStatus;
+ }
+
+ return BytesCount;
+}
+
+/**
+ 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[in] SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param[out] Buffer Pointer to the buffer to store the bytes read from the SMBUS.
+ @param[out] Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+
+ @retval 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 ((Buffer == NULL) ||
+ (SMBUS_LIB_LENGTH (SmBusAddress) != 0) ||
+ (SMBUS_LIB_RESERVED (SmBusAddress) != 0)) {
+ if (Status != NULL) {
+ *Status = RETURN_INVALID_PARAMETER;
+ }
+ return 0;
+ }
+
+ return InternalSmBusBlock (
+ V_SMBUS_IO_SMB_CMD_BLOCK,
+ SmBusAddress | B_SMBUS_IO_READ,
+ NULL,
+ Buffer,
+ Status
+ );
+}
+
+/**
+ 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[in] SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param[out] Buffer Pointer to the buffer to store the bytes read from the SMBUS.
+ @param[out] Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+
+ @retval 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 ((Buffer == NULL) ||
+ (SMBUS_LIB_LENGTH (SmBusAddress) == 0) ||
+ (SMBUS_LIB_LENGTH (SmBusAddress) > 32) ||
+ (SMBUS_LIB_RESERVED (SmBusAddress) != 0)) {
+ if (Status != NULL) {
+ *Status = RETURN_INVALID_PARAMETER;
+ }
+ return 0;
+ }
+
+ return InternalSmBusBlock (
+ V_SMBUS_IO_SMB_CMD_BLOCK,
+ SmBusAddress | B_SMBUS_IO_WRITE,
+ Buffer,
+ NULL,
+ Status
+ );
+}
+
+/**
+ 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[in] SmBusAddress Address that encodes the SMBUS Slave Address,
+ SMBUS Command, SMBUS Data Length, and PEC.
+ @param[in] WriteBuffer Pointer to the buffer of bytes to write to the SMBUS.
+ @param[out] ReadBuffer Pointer to the buffer of bytes to read from the SMBUS.
+ @param[out] Status Return status for the executed command.
+ This is an optional parameter and may be NULL.
+
+ @retval 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 ((WriteBuffer == NULL) ||
+ (ReadBuffer == NULL) ||
+ (SMBUS_LIB_LENGTH (SmBusAddress) == 0) ||
+ (SMBUS_LIB_LENGTH (SmBusAddress) > 32) ||
+ (SMBUS_LIB_RESERVED (SmBusAddress) != 0)) {
+ if (Status != NULL) {
+ *Status = RETURN_INVALID_PARAMETER;
+ }
+ return 0;
+ }
+
+ return InternalSmBusBlock (
+ V_SMBUS_IO_SMB_CMD_BLOCK_PROCESS,
+ SmBusAddress | B_SMBUS_IO_WRITE,
+ WriteBuffer,
+ ReadBuffer,
+ Status
+ );
+}
+
+/**
+ The library constructuor.
+
+ The function does the necessary initialization work for this library instance.
+
+ @retval EFI_SUCCESS The function always return EFI_SUCCESS for now.
+**/
+RETURN_STATUS
+EFIAPI
+BaseSmbusLibConstructor (
+ VOID
+ )
+{
+ UINT64 SmbusPciBase;
+ UINT16 IoPortBaseAddress;
+
+ //
+ // Init mSmbusIoBase variable.
+ //
+ SmbusPciBase = PCI_SEGMENT_LIB_ADDRESS (
+ DEFAULT_PCI_SEGMENT_NUMBER_PCH,
+ DEFAULT_PCI_BUS_NUMBER_PCH,
+ PCI_DEVICE_NUMBER_PCH_SMBUS,
+ PCI_FUNCTION_NUMBER_PCH_SMBUS,
+ 0
+ );
+ IoPortBaseAddress = (UINT16) PciSegmentRead32 (SmbusPciBase +
+ R_SMBUS_CFG_BASE);
+
+ if ((IoPortBaseAddress != 0) && (IoPortBaseAddress != 0xFFFF)) {
+ mSmbusIoBase = IoPortBaseAddress & B_SMBUS_CFG_BASE_BAR; }
+
+ return RETURN_SUCCESS;
+}
--
2.16.2.windows.1
next prev parent reply other threads:[~2019-08-17 0:52 UTC|newest]
Thread overview: 121+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-17 0:15 [edk2-platforms][PATCH V1 00/37] Coffee Lake and Whiskey Lake support Kubacki, Michael A
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 01/37] CoffeelakeSiliconPkg: Add package and Include headers Kubacki, Michael A
2019-08-17 0:51 ` Nate DeSimone
2019-08-17 1:08 ` Chiu, Chasel
2019-08-17 1:18 ` Chaganty, Rangasai V
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 02/37] CoffeelakeSiliconPkg/Cpu: Add " Kubacki, Michael A
2019-08-17 0:51 ` Nate DeSimone
2019-08-17 1:08 ` Chiu, Chasel
2019-08-17 6:58 ` Chaganty, Rangasai V
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 03/37] CoffeelakeSiliconPkg/Me: " Kubacki, Michael A
2019-08-17 0:51 ` Nate DeSimone
2019-08-17 1:08 ` Chiu, Chasel
2019-08-17 7:04 ` Chaganty, Rangasai V
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 04/37] CoffeelakeSiliconPkg/Pch: Add include headers Kubacki, Michael A
2019-08-17 0:51 ` Nate DeSimone
2019-08-17 1:08 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 05/37] CoffeelakeSiliconPkg/Pch: Add ConfigBlock headers Kubacki, Michael A
2019-08-17 0:51 ` Nate DeSimone
2019-08-17 1:09 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 06/37] CoffeelakeSiliconPkg/Pch: Add Library include headers Kubacki, Michael A
2019-08-17 0:51 ` Nate DeSimone
2019-08-17 1:09 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 07/37] CoffeelakeSiliconPkg/Pch: Add PPI and Protocol " Kubacki, Michael A
2019-08-17 0:51 ` Nate DeSimone
2019-08-17 1:09 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 08/37] CoffeelakeSiliconPkg/Pch: Add Register " Kubacki, Michael A
2019-08-17 0:51 ` Nate DeSimone
2019-08-17 1:09 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 09/37] CoffeelakeSiliconPkg/Pch: Add Private " Kubacki, Michael A
2019-08-17 0:51 ` Nate DeSimone
2019-08-17 1:12 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 10/37] CoffeelakeSiliconPkg/Pch: Add Private/Library " Kubacki, Michael A
2019-08-17 0:52 ` Nate DeSimone
2019-08-17 1:09 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 11/37] CoffeelakeSiliconPkg/Pch: Add Private/Protocol " Kubacki, Michael A
2019-08-17 0:51 ` Nate DeSimone
2019-08-17 1:10 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 12/37] CoffeelakeSiliconPkg/SampleCode: Add Include headers Kubacki, Michael A
2019-08-17 0:52 ` Nate DeSimone
2019-08-17 1:12 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 13/37] CoffeelakeSiliconPkg/SystemAgent: " Kubacki, Michael A
2019-08-17 0:52 ` Nate DeSimone
2019-08-17 1:12 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 14/37] CoffeelakeSiliconPkg: Add package common library instances Kubacki, Michael A
2019-08-17 0:52 ` Nate DeSimone
2019-08-17 1:12 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 15/37] CoffeelakeSiliconPkg/Cpu: Add " Kubacki, Michael A
2019-08-17 0:52 ` Nate DeSimone
2019-08-17 1:15 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 16/37] CoffeelakeSiliconPkg/Me: " Kubacki, Michael A
2019-08-17 0:52 ` Nate DeSimone
2019-08-17 1:12 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 17/37] CoffeelakeSiliconPkg/Pch: Add Base " Kubacki, Michael A
2019-08-17 0:52 ` Nate DeSimone [this message]
2019-08-17 1:13 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 18/37] CoffeelakeSiliconPkg/Pch: Add DXE " Kubacki, Michael A
2019-08-17 0:52 ` Nate DeSimone
2019-08-17 1:13 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 19/37] CoffeelakeSiliconPkg/Pch: Add PEI " Kubacki, Michael A
2019-08-17 0:52 ` Nate DeSimone
2019-08-17 1:13 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 20/37] CoffeelakeSiliconPkg/Pch: Add SMM " Kubacki, Michael A
2019-08-17 0:53 ` Nate DeSimone
2019-08-17 1:16 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 21/37] CoffeelakeSiliconPkg/Pch: Add Base " Kubacki, Michael A
2019-08-17 0:52 ` Nate DeSimone
2019-08-17 1:13 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 22/37] CoffeelakeSiliconPkg/Pch: Add DXE private " Kubacki, Michael A
2019-08-17 0:52 ` Nate DeSimone
2019-08-17 1:13 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 23/37] CoffeelakeSiliconPkg/Pch: Add PEI " Kubacki, Michael A
2019-08-17 0:53 ` Nate DeSimone
2019-08-17 1:14 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 24/37] CoffeelakeSiliconPkg/Pch: Add SMM " Kubacki, Michael A
2019-08-17 0:53 ` Nate DeSimone
2019-08-17 1:14 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 25/37] CoffeelakeSiliconPkg/SystemAgent: Add " Kubacki, Michael A
2019-08-17 0:53 ` Nate DeSimone
2019-08-17 1:14 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 26/37] CoffeelakeSiliconPkg/Pch: Add modules Kubacki, Michael A
2019-08-17 0:53 ` Nate DeSimone
2019-08-17 1:14 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 27/37] CoffeelakeSiliconPkg/Pch: Add PchSmiDispatcher Kubacki, Michael A
2019-08-17 0:53 ` Nate DeSimone
2019-08-17 1:15 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 28/37] CoffeelakeSiliconPkg/SystemAgent: Add modules Kubacki, Michael A
2019-08-17 0:53 ` Nate DeSimone
2019-08-17 1:15 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 29/37] CoffeelakeSiliconPkg: Add package DSC files Kubacki, Michael A
2019-08-17 0:53 ` Nate DeSimone
2019-08-17 1:14 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 30/37] Maintainers.txt: Add CoffeelakeSiliconPkg maintainers Kubacki, Michael A
2019-08-17 0:53 ` Nate DeSimone
2019-08-17 1:15 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 31/37] WhiskeylakeOpenBoardPkg: Add package and headers Kubacki, Michael A
2019-08-17 0:54 ` Nate DeSimone
2019-08-17 1:16 ` Chiu, Chasel
2019-08-19 18:09 ` Sinha, Ankit
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 32/37] WhiskeylakeOpenBoardPkg/WhiskeylakeURvp: Add headers Kubacki, Michael A
2019-08-17 0:54 ` Nate DeSimone
2019-08-17 1:16 ` Chiu, Chasel
2019-08-17 0:15 ` [edk2-platforms][PATCH V1 33/37] WhiskeylakeOpenBoardPkg: Add library instances Kubacki, Michael A
2019-08-17 0:54 ` Nate DeSimone
2019-08-17 1:16 ` Chiu, Chasel
2019-08-17 0:16 ` [edk2-platforms][PATCH V1 34/37] WhiskeylakeOpenBoardPkg/WhiskeylakeURvp: " Kubacki, Michael A
2019-08-17 0:54 ` Nate DeSimone
2019-08-17 1:17 ` Chiu, Chasel
2019-08-17 20:08 ` Chaganty, Rangasai V
2019-08-17 0:16 ` [edk2-platforms][PATCH V1 35/37] WhiskeylakeOpenBoardPkg: Add modules Kubacki, Michael A
2019-08-17 0:54 ` Nate DeSimone
2019-08-17 1:17 ` Chiu, Chasel
2019-08-17 7:50 ` Chaganty, Rangasai V
2019-08-17 0:16 ` [edk2-platforms][PATCH V1 36/37] WhiskeylakeOpenBoardPkg/WhiskeylakeURvp: Add DSC and build files Kubacki, Michael A
2019-08-17 0:54 ` Nate DeSimone
2019-08-17 1:16 ` Chiu, Chasel
2019-08-17 20:11 ` Chaganty, Rangasai V
2019-08-17 0:16 ` [edk2-platforms][PATCH V1 37/37] Add WhiskeylakeOpenBoardPkg to global build config and documentation Kubacki, Michael A
2019-08-17 0:54 ` Nate DeSimone
2019-08-17 1:17 ` Chiu, Chasel
2019-08-17 20:00 ` Chaganty, Rangasai V
2019-08-19 18:14 ` [edk2-platforms][PATCH V1 00/37] Coffee Lake and Whiskey Lake support Sinha, Ankit
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