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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/vpd/vpd.H $ */
/* */
/* IBM CONFIDENTIAL */
/* */
/* COPYRIGHT International Business Machines Corp. 2013 */
/* */
/* p1 */
/* */
/* Object Code Only (OCO) source materials */
/* Licensed Internal Code Source Materials */
/* IBM HostBoot Licensed Internal Code */
/* */
/* The source code for this program is not published or otherwise */
/* divested of its trade secrets, irrespective of what has been */
/* deposited with the U.S. Copyright Office. */
/* */
/* Origin: 30 */
/* */
/* IBM_PROLOG_END_TAG */
#ifndef __VPD_H
#define __VPD_H
#include <pnor/pnorif.H>
namespace VPD
{
/**
* @brief This structure is used to transfer common information needed
* for reading the address from the PNOR RP.
*/
struct pnorInformation
{
uint64_t segmentSize;
uint64_t maxSegments;
PNOR::SectionId pnorSection;
};
/**
* @brief VPD Message Types
*/
enum VPD_MSG_TYPE
{
VPD_WRITE_DIMM = 0x00C1, //< DIMM SPD
VPD_WRITE_PROC = 0x00C2, //< Processor MVPD
VPD_WRITE_MEMBUF = 0x00C3, //< Centaur FRU VPD
};
/**
* @brief Message definition for VPD Write Request
*
* - data0 :
* - [16] VPD Record Number
* - [32] 4-byte ASCII String for record name
* 'XXXX'=Entire VPD section from PNOR
* - [16] 2-byte ASCII String for keyword or offset into SPD
* 'XX'=Entire VPD record
* - data1 :
* - [64] Size of binary data in bytes
* - extra data : Binary VPD Data
*/
union VpdWriteMsg_t
{
uint64_t data0;
struct
{
uint16_t rec_num; //< VPD_REC_NUM
char record[4]; //< ASCII Record Name
union
{
char keyword[2]; //< ASCII Keyword (for IBM VPD)
uint16_t offset; //< Offset into record in bytes (for DIMM SPD)
};
} PACKED;
};
/**
* @brief This function will query the PNOR RP to get the offset of the
* section requested. It will then set global variables to save this
* value away for later use. This function only needs to be called once.
*
* @param[in] i_pnorInfo - Structure of common PNOR information needed to
* query for the sections address.
*
* @param[in/out] io_cachedAddr - This parameter is a gloval variable in the
* calling code. It is the address that is obtained from the PNOR
* RP.
*
* @param[in] i_mutex - The Mutex from the calling code. It is locked when
* the globals are modified.
*
* @return errlHndl_t - NULL if successful, otherwise a pointer to the
* Error log.
*/
errlHndl_t getPnorAddr ( pnorInformation & i_pnorInfo,
uint64_t &io_cachedAddr,
mutex_t * i_mutex );
/**
* @brief This function will read the PNOR at the correct offset and number of
* bytes for the keyword requested.
*
* @param[in] i_byteAddr - The offset to access in the PNOR.
*
* @param[in] i_numBytes - Number of bytes to read.
*
* @param[out] o_data - The data buffer that the read data will be placed
* into.
*
* @param[in] i_target - The chip target to access the data for.
*
* @param[in] i_pnorInfo - Information about the PNOR section that we need to
* know to make the request.
*
* @param[in/out] io_cachedAddr - The address offset to the data chunk in
* PNOR.
*
* @param[in] i_mutex - The mutex to lock/unlock while setting io_isAddrCached
* and io_cachedAddr. It is assumed that those parameters are global
* variables in the code where they reside.
*
* @return errlHndl_t - NULL if successful, otherwise a pointer to the error
* log.
*/
errlHndl_t readPNOR ( uint64_t i_byteAddr,
size_t i_numBytes,
void * o_data,
TARGETING::Target * i_target,
pnorInformation & i_pnorInfo,
uint64_t &io_cachedAddr,
mutex_t* i_mutex );
/**
* @brief This function will write the PNOR at the correct offset and number
* of bytes for the keyword requested.
*
* @param[in] i_byteAddr - The offset to access in the PNOR.
*
* @param[in] i_numBytes - The number of bytes to write.
*
* @param[in] i_data - The data buffer of the data to be written.
*
* @param[in] i_target - The chip target to access the data for.
*
* @param[in] i_pnorInfo - Information about the PNOR section that we need to
* know to make the request.
*
* @param[in/out] io_cachedAddr - The address offset to the data chunk in
* PNOR.
*
* @param[in] i_mutex - The mutex to lock/unlock while setting io_isAddrCached
* and io_cachedAddr. It is assumed that those parameters are global
* variables in the code where they reside.
*
* @return errlHndl_t - NULL if successful, otherwise a pointer to the error
* log.
*/
errlHndl_t writePNOR ( uint64_t i_byteAddr,
size_t i_numBytes,
void * i_data,
TARGETING::Target * i_target,
pnorInformation & i_pnorInfo,
uint64_t &io_cachedAddr,
mutex_t* i_mutex );
/**
* @brief This function handles sending the mailbox message to the Fsp to
* notify of updates to the data.
*
* @param[in] i_numbytes - Number of bytes to read.
*
* @param[in] i_data - The data buffer that will return the data read.
*
* @param[in] i_target - The target to access.
*
* @param[in] i_type - The type of VPD being written.
*
* @param[in] i_record - The rec_num + record/keyword.
*
* @return errlHndl_t - NULL if successful, otherwise a pointer to the error
* log.
*/
errlHndl_t sendMboxWriteMsg ( size_t i_numBytes,
void * i_data,
TARGETING::Target * i_target,
VPD_MSG_TYPE i_type,
VpdWriteMsg_t& i_record );
}; //end VPD namespace
#endif
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