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// IBM_PROLOG_BEGIN_TAG
// This is an automatically generated prolog.
//
// $Source: src/usr/fsi/fsipres.C $
//
// IBM CONFIDENTIAL
//
// COPYRIGHT International Business Machines Corp. 2011
//
// 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 other-
// wise divested of its trade secrets, irrespective of what has
// been deposited with the U.S. Copyright Office.
//
// Origin: 30
//
// IBM_PROLOG_END
#include <devicefw/driverif.H>
#include <targeting/common/attributes.H>
#include <fsi/fsi_reasoncodes.H>
#include "fsidd.H"
extern trace_desc_t* g_trac_fsi;
namespace FSI
{
// Forward declaration from fsidd.C.
bool isSlavePresent( const TARGETING::Target* i_target );
/**
* @brief Performs a presence detect operation.
*
* This function does FSI presence detect, following the pre-defined prototype
* for a device-driver framework function.
*
* @param[in] i_opType Operation type, see DeviceFW::OperationType
* in driverif.H
* @param[in] i_target Presence detect target
* @param[in/out] io_buffer Read: Pointer to output data storage
* Write: Pointer to input data storage
* @param[in/out] io_buflen Input: size of io_buffer (in bytes, always 1)
* Output: Success = 1, Failure = 0
* @param[in] i_accessType DeviceFW::AccessType enum (userif.H)
* @param[in] i_args This is an argument list for DD framework.
* In this function, there are no arguments.
* @return errlHndl_t
*/
errlHndl_t presenceDetect(DeviceFW::OperationType i_opType,
TARGETING::Target* i_target,
void* io_buffer,
size_t& io_buflen,
int64_t i_accessType,
va_list i_args)
{
if (unlikely(io_buflen < sizeof(bool)))
{
TRACFCOMP(g_trac_fsi,
ERR_MRK "FSI::presenceDetect> Invalid data length: %d",
io_buflen);
/*@
* @errortype
* @moduleid FSI::MOD_FSIPRES_PRESENCEDETECT
* @reasoncode FSI::RC_INVALID_LENGTH
* @userdata1 Data Length
* @devdesc presenceDetect> Invalid data length (!= 1 bytes)
*/
errlHndl_t l_errl =
new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
FSI::MOD_FSIPRES_PRESENCEDETECT,
FSI::RC_INVALID_LENGTH,
TO_UINT64(io_buflen));
io_buflen = 0;
return l_errl;
}
bool present = false;
TARGETING::Target* l_masterChip = NULL;
TARGETING::targetService().masterProcChipTargetHandle(l_masterChip);
if ((i_target == TARGETING::MASTER_PROCESSOR_CHIP_TARGET_SENTINEL) ||
(i_target == l_masterChip))
{
present = true;
}
else
{
present = isSlavePresent(i_target);
}
memcpy(io_buffer, &present, sizeof(present));
io_buflen = sizeof(present);
return NULL;
}
// Register as the presence detect for processor and memory buffers.
DEVICE_REGISTER_ROUTE(DeviceFW::READ,
DeviceFW::PRESENT,
TARGETING::TYPE_PROC,
presenceDetect);
DEVICE_REGISTER_ROUTE(DeviceFW::READ,
DeviceFW::PRESENT,
TARGETING::TYPE_MEMBUF,
presenceDetect);
};
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