diff options
| author | klu2 <klu2@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-10-10 08:00:29 +0000 |
|---|---|---|
| committer | klu2 <klu2@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-10-10 08:00:29 +0000 |
| commit | 2d8debe71060fae61f4073240f618fa9682c976e (patch) | |
| tree | 43b1ff735483648c8a227d5b768d6fae6211f1df /MdePkg/Include/Library/SmbusLib.h | |
| parent | 3ecdcd1146b8268eea8a550e883121c566a9aef8 (diff) | |
| download | edk2-platforms-2d8debe71060fae61f4073240f618fa9682c976e.tar.xz | |
synchronize macros SMBUS_LIB_SLAVE_ADDRESS, SMBUS_LIB_COMMAND, SMBUS_LIB_LENGTH, SMBUS_LIB_PEC, SMBUS_LIB_RESERVED with latest MdePkg specification.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6101 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Include/Library/SmbusLib.h')
| -rw-r--r-- | MdePkg/Include/Library/SmbusLib.h | 40 |
1 files changed, 35 insertions, 5 deletions
diff --git a/MdePkg/Include/Library/SmbusLib.h b/MdePkg/Include/Library/SmbusLib.h index c59f0bb4cf..17b81b6f19 100644 --- a/MdePkg/Include/Library/SmbusLib.h +++ b/MdePkg/Include/Library/SmbusLib.h @@ -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.
@@ -42,6 +37,41 @@ )
/**
+ 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.
Executes an SMBUS quick read command on the SMBUS device specified by SmBusAddress.
|