mirror of https://github.com/acidanthera/audk.git
456 lines
23 KiB
C
456 lines
23 KiB
C
/** @file
|
|
Smbus Library Services that conduct SMBus transactions and enable the operatation
|
|
to be replayed during an S3 resume. This library class maps directly on top
|
|
of the SmbusLib class.
|
|
|
|
Copyright (c) 2007 - 2018, 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.
|
|
|
|
**/
|
|
|
|
#ifndef __S3_SMBUS_LIB_H__
|
|
#define __S3_SMBUS_LIB_H__
|
|
|
|
/**
|
|
Executes an SMBUS quick read command, and saves the value in the S3 script to be replayed
|
|
on S3 resume.
|
|
|
|
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 The address that encodes the SMBUS Slave Address,
|
|
SMBUS Command, SMBUS Data Length, and PEC.
|
|
@param[out] Status The 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
|
|
was recorded in the Host Status Register bit. Device errors are a result
|
|
of a transaction collision, illegal command field, unclaimed cycle
|
|
(host initiated), or bus error (collision).
|
|
RETURN_UNSUPPORTED The SMBus operation is not supported.
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
S3SmBusQuickRead (
|
|
IN UINTN SmBusAddress,
|
|
OUT RETURN_STATUS *Status OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Executes an SMBUS quick write command, and saves the value in the S3 script to be replayed
|
|
on S3 resume.
|
|
|
|
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 The address that encodes the SMBUS Slave Address,
|
|
SMBUS Command, SMBUS Data Length, and PEC.
|
|
@param[out] Status The 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
|
|
was recorded in the Host Status Register bit. Device errors are a result
|
|
of a transaction collision, illegal command field, unclaimed cycle
|
|
(host initiated), or bus error (collision).
|
|
RETURN_UNSUPPORTED The SMBus operation is not supported.
|
|
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
S3SmBusQuickWrite (
|
|
IN UINTN SmBusAddress,
|
|
OUT RETURN_STATUS *Status OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Executes an SMBUS receive byte command, and saves the value in the S3 script to be replayed
|
|
on S3 resume.
|
|
|
|
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 The address that encodes the SMBUS Slave Address,
|
|
SMBUS Command, SMBUS Data Length, and PEC.
|
|
@param[out] Status The 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
|
|
was recorded in the Host Status Register bit. Device errors are a result
|
|
of a transaction collision, illegal command field, unclaimed cycle
|
|
(host initiated), or bus error (collision).
|
|
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
|
|
S3SmBusReceiveByte (
|
|
IN UINTN SmBusAddress,
|
|
OUT RETURN_STATUS *Status OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Executes an SMBUS send byte command, and saves the value in the S3 script to be replayed
|
|
on S3 resume.
|
|
|
|
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 The 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 The 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
|
|
was recorded 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
|
|
S3SmBusSendByte (
|
|
IN UINTN SmBusAddress,
|
|
IN UINT8 Value,
|
|
OUT RETURN_STATUS *Status OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Executes an SMBUS read data byte command, and saves the value in the S3 script to be replayed
|
|
on S3 resume.
|
|
|
|
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 The address that encodes the SMBUS Slave Address,
|
|
SMBUS Command, SMBUS Data Length, and PEC.
|
|
@param[out] Status The 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
|
|
was recorded in the Host Status Register bit. Device errors are a result
|
|
of a transaction collision, illegal command field, unclaimed cycle
|
|
(host initiated), or bus error (collision).
|
|
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
|
|
S3SmBusReadDataByte (
|
|
IN UINTN SmBusAddress,
|
|
OUT RETURN_STATUS *Status OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Executes an SMBUS write data byte command, and saves the value in the S3 script to be replayed
|
|
on S3 resume.
|
|
|
|
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 The 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 The 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
|
|
was recorded in the Host Status Register bit. Device errors are a result
|
|
of a transaction collision, illegal command field, unclaimed cycle
|
|
(host initiated), or bus error (collision).
|
|
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
|
|
S3SmBusWriteDataByte (
|
|
IN UINTN SmBusAddress,
|
|
IN UINT8 Value,
|
|
OUT RETURN_STATUS *Status OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Executes an SMBUS read data word command, and saves the value in the S3 script to be replayed
|
|
on S3 resume.
|
|
|
|
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 The address that encodes the SMBUS Slave Address,
|
|
SMBUS Command, SMBUS Data Length, and PEC.
|
|
@param[out] Status The 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
|
|
was recorded in the Host Status Register bit. Device errors are a result
|
|
of a transaction collision, illegal command field, unclaimed cycle
|
|
(host initiated), or bus error (collision).
|
|
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
|
|
S3SmBusReadDataWord (
|
|
IN UINTN SmBusAddress,
|
|
OUT RETURN_STATUS *Status OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Executes an SMBUS write data word command, and saves the value in the S3 script to be replayed
|
|
on S3 resume.
|
|
|
|
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 The 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 The 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
|
|
was recorded in the Host Status Register bit. Device errors are a result
|
|
of a transaction collision, illegal command field, unclaimed cycle
|
|
(host initiated), or bus error (collision).
|
|
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
|
|
S3SmBusWriteDataWord (
|
|
IN UINTN SmBusAddress,
|
|
IN UINT16 Value,
|
|
OUT RETURN_STATUS *Status OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Executes an SMBUS process call command, and saves the value in the S3 script to be replayed
|
|
on S3 resume.
|
|
|
|
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 The 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 The 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
|
|
was recorded in the Host Status Register bit. Device errors are a result
|
|
of a transaction collision, illegal command field, unclaimed cycle
|
|
(host initiated), or bus error (collision).
|
|
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
|
|
S3SmBusProcessCall (
|
|
IN UINTN SmBusAddress,
|
|
IN UINT16 Value,
|
|
OUT RETURN_STATUS *Status OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Executes an SMBUS read block command, and saves the value in the S3 script to be replayed
|
|
on S3 resume.
|
|
|
|
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 The address that encodes the SMBUS Slave Address,
|
|
SMBUS Command, SMBUS Data Length, and PEC.
|
|
@param[out] Buffer The pointer to the buffer to store the bytes read from the SMBUS.
|
|
@param[out] Status The 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
|
|
was recorded in the Host Status Register bit. Device errors are a result
|
|
of a transaction collision, illegal command field, unclaimed cycle
|
|
(host initiated), or bus error (collision).
|
|
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
|
|
S3SmBusReadBlock (
|
|
IN UINTN SmBusAddress,
|
|
OUT VOID *Buffer,
|
|
OUT RETURN_STATUS *Status OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Executes an SMBUS write block command, and saves the value in the S3 script to be replayed
|
|
on S3 resume.
|
|
|
|
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 The address that encodes the SMBUS Slave Address,
|
|
SMBUS Command, SMBUS Data Length, and PEC.
|
|
@param[out] Buffer The pointer to the buffer to store the bytes read from the SMBUS.
|
|
@param[out] Status The 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
|
|
was recorded in the Host Status Register bit. Device errors are a result
|
|
of a transaction collision, illegal command field, unclaimed cycle
|
|
(host initiated), or bus error (collision).
|
|
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
|
|
S3SmBusWriteBlock (
|
|
IN UINTN SmBusAddress,
|
|
OUT VOID *Buffer,
|
|
OUT RETURN_STATUS *Status OPTIONAL
|
|
);
|
|
|
|
/**
|
|
Executes an SMBUS block process call command, and saves the value in the S3 script to be replayed
|
|
on S3 resume.
|
|
|
|
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 The address that encodes the SMBUS Slave Address,
|
|
SMBUS Command, SMBUS Data Length, and PEC.
|
|
@param[in] WriteBuffer The pointer to the buffer of bytes to write to the SMBUS.
|
|
@param[out] ReadBuffer The pointer to the buffer of bytes to read from the SMBUS.
|
|
@param[out] Status The 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
|
|
was recorded in the Host Status Register bit. Device errors are a result
|
|
of a transaction collision, illegal command field, unclaimed cycle
|
|
(host initiated), or bus error (collision).
|
|
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
|
|
S3SmBusBlockProcessCall (
|
|
IN UINTN SmBusAddress,
|
|
IN VOID *WriteBuffer,
|
|
OUT VOID *ReadBuffer,
|
|
OUT RETURN_STATUS *Status OPTIONAL
|
|
);
|
|
|
|
#endif
|