+++ /dev/null
-/*++\r
-\r
-Copyright (c) 2004 - 2006, Intel Corporation. All rights reserved.<BR>\r
-This program and the accompanying materials \r
-are licensed and made available under the terms and conditions of the BSD License \r
-which accompanies this distribution. The full text of the license may be found at \r
-http://opensource.org/licenses/bsd-license.php \r
- \r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
-\r
-\r
-Module Name:\r
-\r
- EdkIIGlueSmbusLib.h\r
- \r
-Abstract: \r
-\r
- Public header file for Smbus Lib\r
-\r
---*/\r
-\r
-#ifndef __EDKII_GLUE_SMBUS_LIB_H__\r
-#define __EDKII_GLUE_SMBUS_LIB_H__\r
-\r
-//\r
-// PEC BIT is bit 22 in SMBUS address\r
-//\r
-#define SMBUS_LIB_PEC_BIT (1 << 22)\r
-\r
-/**\r
- Macro that converts SMBUS slave address, SMBUS command, SMBUS data length,\r
- and PEC to a value that can be passed to the SMBUS Library functions.\r
-\r
- Computes an address that is compatible with the SMBUS Library functions.\r
- The unused upper bits of SlaveAddress, Command, and Length are stripped\r
- prior to the generation of the address.\r
- \r
- @param SlaveAddress SMBUS Slave Address. Range 0..127.\r
- @param Command SMBUS Command. Range 0..255.\r
- @param Length SMBUS Data Length. Range 0..32.\r
- @param Pec TRUE if Packet Error Checking is enabled. Otherwise FALSE.\r
-\r
-**/\r
-#define SMBUS_LIB_ADDRESS(SlaveAddress,Command,Length,Pec) \\r
- ( ((Pec) ? SMBUS_LIB_PEC_BIT: 0) | \\r
- (((SlaveAddress) & 0x7f) << 1) | \\r
- (((Command) & 0xff) << 8) | \\r
- (((Length) & 0x3f) << 16) \\r
- )\r
-\r
-/**\r
- Executes an SMBUS quick read command.\r
-\r
- Executes an SMBUS quick read command on the SMBUS device specified by SmBusAddress.\r
- Only the SMBUS slave address field of SmBusAddress is required.\r
- If Status is not NULL, then the status of the executed command is returned in Status.\r
- If PEC is set in SmBusAddress, then ASSERT().\r
- If Command in SmBusAddress is not zero, then ASSERT().\r
- If Length in SmBusAddress is not zero, then ASSERT().\r
- If any reserved bits of SmBusAddress are set, then ASSERT().\r
-\r
- @param SmBusAddress Address that encodes the SMBUS Slave Address,\r
- SMBUS Command, SMBUS Data Length, and PEC.\r
- @param Status Return status for the executed command.\r
- This is an optional parameter and may be NULL.\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-SmBusQuickRead (\r
- IN UINTN SmBusAddress,\r
- OUT RETURN_STATUS *Status OPTIONAL\r
- );\r
-\r
-/**\r
- Executes an SMBUS quick write command.\r
-\r
- Executes an SMBUS quick write command on the SMBUS device specified by SmBusAddress.\r
- Only the SMBUS slave address field of SmBusAddress is required.\r
- If Status is not NULL, then the status of the executed command is returned in Status.\r
- If PEC is set in SmBusAddress, then ASSERT().\r
- If Command in SmBusAddress is not zero, then ASSERT().\r
- If Length in SmBusAddress is not zero, then ASSERT().\r
- If any reserved bits of SmBusAddress are set, then ASSERT().\r
-\r
- @param SmBusAddress Address that encodes the SMBUS Slave Address,\r
- SMBUS Command, SMBUS Data Length, and PEC.\r
- @param Status Return status for the executed command.\r
- This is an optional parameter and may be NULL.\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-SmBusQuickWrite (\r
- IN UINTN SmBusAddress,\r
- OUT RETURN_STATUS *Status OPTIONAL\r
- );\r
-\r
-/**\r
- Executes an SMBUS receive byte command.\r
-\r
- Executes an SMBUS receive byte command on the SMBUS device specified by SmBusAddress.\r
- Only the SMBUS slave address field of SmBusAddress is required.\r
- The byte received from the SMBUS is returned.\r
- If Status is not NULL, then the status of the executed command is returned in Status.\r
- If Command in SmBusAddress is not zero, then ASSERT().\r
- If Length in SmBusAddress is not zero, then ASSERT().\r
- If any reserved bits of SmBusAddress are set, then ASSERT().\r
-\r
- @param SmBusAddress Address that encodes the SMBUS Slave Address,\r
- SMBUS Command, SMBUS Data Length, and PEC.\r
- @param Status Return status for the executed command.\r
- This is an optional parameter and may be NULL.\r
-\r
- @return The byte received from the SMBUS.\r
-\r
-**/\r
-UINT8\r
-EFIAPI\r
-SmBusReceiveByte (\r
- IN UINTN SmBusAddress,\r
- OUT RETURN_STATUS *Status OPTIONAL\r
- );\r
-\r
-/**\r
- Executes an SMBUS send byte command.\r
-\r
- Executes an SMBUS send byte command on the SMBUS device specified by SmBusAddress.\r
- The byte specified by Value is sent.\r
- Only the SMBUS slave address field of SmBusAddress is required. Value is returned.\r
- If Status is not NULL, then the status of the executed command is returned in Status.\r
- If Command in SmBusAddress is not zero, then ASSERT().\r
- If Length in SmBusAddress is not zero, then ASSERT().\r
- If any reserved bits of SmBusAddress are set, then ASSERT().\r
-\r
- @param SmBusAddress Address that encodes the SMBUS Slave Address,\r
- SMBUS Command, SMBUS Data Length, and PEC.\r
- @param Value The 8-bit value to send.\r
- @param Status Return status for the executed command.\r
- This is an optional parameter and may be NULL.\r
-\r
- @return The parameter of Value.\r
-\r
-**/\r
-UINT8\r
-EFIAPI\r
-SmBusSendByte (\r
- IN UINTN SmBusAddress,\r
- IN UINT8 Value,\r
- OUT RETURN_STATUS *Status OPTIONAL\r
- );\r
-\r
-/**\r
- Executes an SMBUS read data byte command.\r
-\r
- Executes an SMBUS read data byte command on the SMBUS device specified by SmBusAddress.\r
- Only the SMBUS slave address and SMBUS command fields of SmBusAddress are required.\r
- The 8-bit value read from the SMBUS is returned.\r
- If Status is not NULL, then the status of the executed command is returned in Status.\r
- If Length in SmBusAddress is not zero, then ASSERT().\r
- If any reserved bits of SmBusAddress are set, then ASSERT().\r
-\r
- @param SmBusAddress Address that encodes the SMBUS Slave Address,\r
- SMBUS Command, SMBUS Data Length, and PEC.\r
- @param Status Return status for the executed command.\r
- This is an optional parameter and may be NULL.\r
-\r
- @return The byte read from the SMBUS.\r
-\r
-**/\r
-UINT8\r
-EFIAPI\r
-SmBusReadDataByte (\r
- IN UINTN SmBusAddress,\r
- OUT RETURN_STATUS *Status OPTIONAL\r
- );\r
-\r
-/**\r
- Executes an SMBUS write data byte command.\r
-\r
- Executes an SMBUS write data byte command on the SMBUS device specified by SmBusAddress.\r
- The 8-bit value specified by Value is written.\r
- Only the SMBUS slave address and SMBUS command fields of SmBusAddress are required.\r
- Value is returned.\r
- If Status is not NULL, then the status of the executed command is returned in Status.\r
- If Length in SmBusAddress is not zero, then ASSERT().\r
- If any reserved bits of SmBusAddress are set, then ASSERT().\r
-\r
- @param SmBusAddress Address that encodes the SMBUS Slave Address,\r
- SMBUS Command, SMBUS Data Length, and PEC.\r
- @param Value The 8-bit value to write.\r
- @param Status Return status for the executed command.\r
- This is an optional parameter and may be NULL.\r
-\r
- @return The parameter of Value.\r
-\r
-**/\r
-UINT8\r
-EFIAPI\r
-SmBusWriteDataByte (\r
- IN UINTN SmBusAddress,\r
- IN UINT8 Value,\r
- OUT RETURN_STATUS *Status OPTIONAL\r
- );\r
-\r
-/**\r
- Executes an SMBUS read data word command.\r
-\r
- Executes an SMBUS read data word command on the SMBUS device specified by SmBusAddress.\r
- Only the SMBUS slave address and SMBUS command fields of SmBusAddress are required.\r
- The 16-bit value read from the SMBUS is returned.\r
- If Status is not NULL, then the status of the executed command is returned in Status.\r
- If Length in SmBusAddress is not zero, then ASSERT().\r
- If any reserved bits of SmBusAddress are set, then ASSERT().\r
- \r
- @param SmBusAddress Address that encodes the SMBUS Slave Address,\r
- SMBUS Command, SMBUS Data Length, and PEC.\r
- @param Status Return status for the executed command.\r
- This is an optional parameter and may be NULL.\r
-\r
- @return The byte read from the SMBUS.\r
-\r
-**/\r
-UINT16\r
-EFIAPI\r
-SmBusReadDataWord (\r
- IN UINTN SmBusAddress,\r
- OUT RETURN_STATUS *Status OPTIONAL\r
- );\r
-\r
-/**\r
- Executes an SMBUS write data word command.\r
-\r
- Executes an SMBUS write data word command on the SMBUS device specified by SmBusAddress.\r
- The 16-bit value specified by Value is written.\r
- Only the SMBUS slave address and SMBUS command fields of SmBusAddress are required.\r
- Value is returned.\r
- If Status is not NULL, then the status of the executed command is returned in Status.\r
- If Length in SmBusAddress is not zero, then ASSERT().\r
- If any reserved bits of SmBusAddress are set, then ASSERT().\r
-\r
- @param SmBusAddress Address that encodes the SMBUS Slave Address,\r
- SMBUS Command, SMBUS Data Length, and PEC.\r
- @param Value The 16-bit value to write.\r
- @param Status Return status for the executed command.\r
- This is an optional parameter and may be NULL.\r
-\r
- @return The parameter of Value.\r
-\r
-**/\r
-UINT16\r
-EFIAPI\r
-SmBusWriteDataWord (\r
- IN UINTN SmBusAddress,\r
- IN UINT16 Value,\r
- OUT RETURN_STATUS *Status OPTIONAL\r
- );\r
-\r
-/**\r
- Executes an SMBUS process call command.\r
-\r
- Executes an SMBUS process call command on the SMBUS device specified by SmBusAddress.\r
- The 16-bit value specified by Value is written.\r
- Only the SMBUS slave address and SMBUS command fields of SmBusAddress are required.\r
- The 16-bit value returned by the process call command is returned.\r
- If Status is not NULL, then the status of the executed command is returned in Status.\r
- If Length in SmBusAddress is not zero, then ASSERT().\r
- If any reserved bits of SmBusAddress are set, then ASSERT().\r
-\r
- @param SmBusAddress Address that encodes the SMBUS Slave Address,\r
- SMBUS Command, SMBUS Data Length, and PEC.\r
- @param Value The 16-bit value to write.\r
- @param Status Return status for the executed command.\r
- This is an optional parameter and may be NULL.\r
-\r
- @return The 16-bit value returned by the process call command.\r
-\r
-**/\r
-UINT16\r
-EFIAPI\r
-SmBusProcessCall (\r
- IN UINTN SmBusAddress,\r
- IN UINT16 Value,\r
- OUT RETURN_STATUS *Status OPTIONAL\r
- );\r
-\r
-/**\r
- Executes an SMBUS read block command.\r
-\r
- Executes an SMBUS read block command on the SMBUS device specified by SmBusAddress.\r
- Only the SMBUS slave address and SMBUS command fields of SmBusAddress are required.\r
- Bytes are read from the SMBUS and stored in Buffer.\r
- The number of bytes read is returned, and will never return a value larger than 32-bytes.\r
- If Status is not NULL, then the status of the executed command is returned in Status.\r
- It is the caller's responsibility to make sure Buffer is large enough for the total number of bytes read.\r
- SMBUS supports a maximum transfer size of 32 bytes, so Buffer does not need to be any larger than 32 bytes.\r
- If Length in SmBusAddress is not zero, then ASSERT().\r
- If Buffer is NULL, then ASSERT().\r
- If any reserved bits of SmBusAddress are set, then ASSERT().\r
-\r
- @param SmBusAddress Address that encodes the SMBUS Slave Address,\r
- SMBUS Command, SMBUS Data Length, and PEC.\r
- @param Buffer Pointer to the buffer to store the bytes read from the SMBUS.\r
- @param Status Return status for the executed command.\r
- This is an optional parameter and may be NULL.\r
-\r
- @return The number of bytes read.\r
-\r
-**/\r
-UINTN\r
-EFIAPI\r
-SmBusReadBlock (\r
- IN UINTN SmBusAddress,\r
- OUT VOID *Buffer,\r
- OUT RETURN_STATUS *Status OPTIONAL\r
- );\r
-\r
-/**\r
- Executes an SMBUS write block command.\r
-\r
- Executes an SMBUS write block command on the SMBUS device specified by SmBusAddress.\r
- The SMBUS slave address, SMBUS command, and SMBUS length fields of SmBusAddress are required.\r
- Bytes are written to the SMBUS from Buffer.\r
- The number of bytes written is returned, and will never return a value larger than 32-bytes.\r
- If Status is not NULL, then the status of the executed command is returned in Status. \r
- If Length in SmBusAddress is zero or greater than 32, then ASSERT().\r
- If Buffer is NULL, then ASSERT().\r
- If any reserved bits of SmBusAddress are set, then ASSERT().\r
-\r
- @param SmBusAddress Address that encodes the SMBUS Slave Address,\r
- SMBUS Command, SMBUS Data Length, and PEC.\r
- @param Buffer Pointer to the buffer to store the bytes read from the SMBUS.\r
- @param Status Return status for the executed command.\r
- This is an optional parameter and may be NULL.\r
-\r
- @return The number of bytes written.\r
-\r
-**/\r
-UINTN\r
-EFIAPI\r
-SmBusWriteBlock (\r
- IN UINTN SmBusAddress,\r
- OUT VOID *Buffer,\r
- OUT RETURN_STATUS *Status OPTIONAL\r
- );\r
-\r
-/**\r
- Executes an SMBUS block process call command.\r
-\r
- Executes an SMBUS block process call command on the SMBUS device specified by SmBusAddress.\r
- The SMBUS slave address, SMBUS command, and SMBUS length fields of SmBusAddress are required.\r
- Bytes are written to the SMBUS from WriteBuffer. Bytes are then read from the SMBUS into ReadBuffer.\r
- If Status is not NULL, then the status of the executed command is returned in Status.\r
- It is the caller's responsibility to make sure ReadBuffer is large enough for the total number of bytes read.\r
- SMBUS supports a maximum transfer size of 32 bytes, so Buffer does not need to be any larger than 32 bytes.\r
- If Length in SmBusAddress is zero or greater than 32, then ASSERT().\r
- If WriteBuffer is NULL, then ASSERT().\r
- If ReadBuffer is NULL, then ASSERT().\r
- If any reserved bits of SmBusAddress are set, then ASSERT().\r
-\r
- @param SmBusAddress Address that encodes the SMBUS Slave Address,\r
- SMBUS Command, SMBUS Data Length, and PEC.\r
- @param WriteBuffer Pointer to the buffer of bytes to write to the SMBUS.\r
- @param ReadBuffer Pointer to the buffer of bytes to read from the SMBUS.\r
- @param Status Return status for the executed command.\r
- This is an optional parameter and may be NULL.\r
-\r
- @return The number of bytes written.\r
-\r
-**/\r
-UINTN\r
-EFIAPI\r
-SmBusBlockProcessCall (\r
- IN UINTN SmBusAddress,\r
- IN VOID *WriteBuffer,\r
- OUT VOID *ReadBuffer,\r
- OUT RETURN_STATUS *Status OPTIONAL\r
- );\r
-\r
-\r
-#endif\r
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