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Code and comments have been checked with spec. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6661 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jji4 2008-11-21 06:56:02 +00:00
parent 8789c5e05f
commit e38fc27384
1 changed files with 147 additions and 55 deletions
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96
MdePkg/Include/Library/SmbusLib.h
View File

@ -70,7 +70,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
@param SmBusAddress Address that encodes the SMBUS Slave Address, SMBUS Command, SMBUS Data Length, and PEC
**/
#define SMBUS_LIB_RESERVED(SmBusAddress) ((SmBusAddress) & ~(((1 << 22) - 2) | BIT22))
#define SMBUS_LIB_RESERVED(SmBusAddress) ((SmBusAddress) & ~(BIT23 - 2))
/**
Executes an SMBUS quick read command.
@ -87,6 +87,13 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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
@ -111,6 +118,13 @@ SmBusQuickRead (
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
@ -135,6 +149,14 @@ SmBusQuickWrite (
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.
@ -162,6 +184,14 @@ SmBusReceiveByte (
@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.
@ -188,6 +218,14 @@ SmBusSendByte (
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.
@ -215,6 +253,14 @@ SmBusReadDataByte (
@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.
@ -241,6 +287,14 @@ SmBusWriteDataByte (
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.
@ -268,6 +322,14 @@ SmBusReadDataWord (
@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.
@ -296,6 +358,14 @@ SmBusWriteDataWord (
@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.
@ -327,6 +397,14 @@ SmBusProcessCall (
@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.
@ -352,10 +430,17 @@ SmBusReadBlock (
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.
MBUS 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.
@ -388,6 +473,13 @@ SmBusWriteBlock (
@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.