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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/occ_405/cmdh/cmdh_thread.c $ */
/* */
/* OpenPOWER OnChipController Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2011,2015 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
#include "ssx.h"
#include "ssx_io.h"
#include "simics_stdio.h"
#include "errl.h"
#include "trac.h"
#include <thread.h>
#include <threadSch.h>
#include "state.h"
#include <cmdh_fsp.h>
eCmdhWakeupThreadMask G_cmdh_thread_wakeup_mask;
extern uint8_t G_occ_interrupt_type;
// Function Specification
//
// Name: Cmd_Hndl_thread_routine
//
// Description: This needs to be moved to separate file after we add cmd handler
// thread support
//
// End Function Specification
void Cmd_Hndl_thread_routine(void *arg)
{
#define OCC_RESP_READY_ALERT_TIMEOUT_ATTEMPTS 5
int l_rc = 0;
errlHndl_t l_errlHndl = NULL;
CHECKPOINT(CMDH_THREAD_STARTED);
CMDH_TRAC_INFO("Command Handler Thread Started ... " );
// ------------------------------------------------
// Initialize HW for FSP Comm
// ------------------------------------------------
l_errlHndl = cmdh_fsp_init();
if(l_errlHndl)
{
// Mark Errl as committed, so FSP knows right away we are having
// problems with Attention, if that is the cause of the error.
commitErrl(&l_errlHndl);
}
CHECKPOINT(FSP_COMM_INITIALIZED);
// Only send this first attention if FSP is present
if(G_occ_interrupt_type == FSP_SUPPORTED_OCC)
{
// ------------------------------------------------
// Send 'Service' Attention to signal that we are
// ready to accept commands from FSP.
// ------------------------------------------------
cmdh_fsp_attention( OCC_ALERT_FSP_SERVICE_REQD );
CHECKPOINT(FIRST_FSP_ATTN_SENT);
}
// ------------------------------------------------
// Loop forever, handling FSP commands
// ------------------------------------------------
while(1)
{
// ------------------------------------------------
// Block, Waiting on sem for a doorbell from FSP
// ------------------------------------------------
l_rc = cmdh_thread_wait_for_wakeup(); // Blocking Call
// ------------------------------------------------
// Handle the command
// ------------------------------------------------
if(SSX_OK == l_rc)
{
if( CMDH_WAKEUP_FSP_COMMAND & G_cmdh_thread_wakeup_mask )
{
clearCmdhWakeupCondition(CMDH_WAKEUP_FSP_COMMAND);
// Handle the command that TMGT just sent to OCC
l_errlHndl = cmdh_fsp_cmd_hndler();
// Commit an error if we get one passed back, do it before
// we tell the FSP we have a response ready
if(NULL != l_errlHndl)
{
commitErrl(&l_errlHndl);
}
// Check is the sender is FSP
if(G_fsp_msg.doorbell[0] == ATTN_SENDER_ID_FSP)
{
// Tell the FSP we have a response ready for them.
// Try to send this for 500ms before giving up
cmdh_fsp_attention_withRetry(OCC_ALERT_FSP_RESP_READY, 500);
}
}
if (CMDH_WAKEUP_FSP_ATTENTION_ALERT & G_cmdh_thread_wakeup_mask)
{
clearCmdhWakeupCondition(CMDH_WAKEUP_FSP_ATTENTION_ALERT);
// Tell the FSP we have something they need to come check on.
// Try to send this for 500ms, before giving up
cmdh_fsp_attention_withRetry(OCC_ALERT_FSP_SERVICE_REQD, 500);
}
if (CMDH_WAKEUP_FSP_CHECKSTOP_ALERT & G_cmdh_thread_wakeup_mask)
{
clearCmdhWakeupCondition(CMDH_WAKEUP_FSP_CHECKSTOP_ALERT);
// Tell the FSP we have something they need to come check on.
// Try to send this for 500ms, before giving up
cmdh_fsp_attention_withRetry(OCC_ALERT_SYS_CHECKSTOP, 500);
}
}
}
}
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