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synchronize macros SMBUS_LIB_SLAVE_ADDRESS, SMBUS_LIB_COMMAND, SMBUS_LIB_LENGTH, SMBUS_LIB_PEC, SMBUS_LIB_RESERVED with latest MdePkg specification.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6101 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
klu2
2008-10-10 08:00:29 +00:00
parent 3ecdcd1146
commit 2d8debe710
5 changed files with 59 additions and 41 deletions
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40
MdePkg/Include/Library/SmbusLib.h
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@@ -15,11 +15,6 @@
#ifndef __SMBUS_LIB__
#define __SMBUS_LIB__
///
/// PEC BIT is bit 22 in SMBUS address
///
#define SMBUS_LIB_PEC_BIT (1 << 22)
/**
Macro that converts SMBUS slave address, SMBUS command, SMBUS data length,
and PEC to a value that can be passed to the SMBUS Library functions.
@@ -41,6 +36,41 @@
(((Length) & 0x3f) << 16) \
)
/**
Macro that returns the SMBUS Slave Address value from an SmBusAddress Parameter value.
@param SmBusAddress Address that encodes the SMBUS Slave Address, SMBUS Command, SMBUS Data Length, and PEC
**/
#define SMBUS_LIB_SLAVE_ADDRESS(SmBusAddress) (((SmBusAddress) >> 1) & 0x7f)
/**
Macro that returns the SMBUS Command value from an SmBusAddress Parameter value.
@param SmBusAddress Address that encodes the SMBUS Slave Address, SMBUS Command, SMBUS Data Length, and PEC
**/
#define SMBUS_LIB_COMMAND(SmBusAddress) (((SmBusAddress) >> 8) & 0xff)
/**
Macro that returns the SMBUS Data Length value from an SmBusAddress Parameter value.
@param SmBusAddress Address that encodes the SMBUS Slave Address, SMBUS Command, SMBUS Data Length, and PEC
**/
#define SMBUS_LIB_LENGTH(SmBusAddress) (((SmBusAddress) >> 16) & 0x3f)
/**
Macro that returns the SMBUS PEC value from an SmBusAddress Parameter value.
@param SmBusAddress Address that encodes the SMBUS Slave Address, SMBUS Command, SMBUS Data Length, and PEC
**/
#define SMBUS_LIB_PEC(SmBusAddress) ((BOOLEAN) (((SmBusAddress) & BIT22) != 0))
/**
Macro that returns the set of reserved bits from an SmBusAddress Parameter value.
@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))
/**
Executes an SMBUS quick read command.