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qcacld-3.0: Add CDS specific MC timer

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Add MC timer API's in CDS.

Change-Id: Idbb10f7d2a00ad8e4620b07275c610d21f699999
CRs-Fixed: 981188
This commit is contained in:
Anurag Chouhan 2016-02-06 17:16:44 +05:30 • committed by Gerrit - the friendly Code Review server
commit ffaf220142
2 changed files with 176 additions and 0 deletions
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40
core/cds/inc/cds_mc_timer.h Normal file
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/*
* Copyright (c) 2014-2016 The Linux Foundation. All rights reserved.
*
* Previously licensed under the ISC license by Qualcomm Atheros, Inc.
*
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
* above copyright notice and this permission notice appear in all
* copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/*
* This file was originally distributed by Qualcomm Atheros, Inc.
* under proprietary terms before Copyright ownership was assigned
* to the Linux Foundation.
*/
/**
* DOC: cds_mc_timer.h
*
* Connectivity driver services public API
*
*/
#if !defined(__CDS_MC_TIMER_H)
#define __CDS_MC_TIMER_H
void cds_linux_timer_callback(unsigned long data);
#endif /* __CDS_MC_TIMER_H */

136
core/cds/src/cds_mc_timer.c Normal file
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/*
* Copyright (c) 2014-2016 The Linux Foundation. All rights reserved.
*
* Previously licensed under the ISC license by Qualcomm Atheros, Inc.
*
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
* above copyright notice and this permission notice appear in all
* copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/*
* This file was originally distributed by Qualcomm Atheros, Inc.
* under proprietary terms before Copyright ownership was assigned
* to the Linux Foundation.
*/
/**
* DOC: cds_mc_timer.c
* Connectivity driver services timer APIs
*/
#include <qdf_mc_timer.h>
#include "cds_mc_timer.h"
#include <wlan_qct_sys.h>
#include <qdf_trace.h>
#include "cds_mq.h"
/**
* cds_linux_timer_callback() - timer callback, gets called at time out.
* @data: unsigned long, holds the timer object.
*
* Return: None
*/
void cds_linux_timer_callback(unsigned long data)
{
qdf_mc_timer_t *timer = (qdf_mc_timer_t *)data;
cds_msg_t msg;
QDF_STATUS status;
qdf_mc_timer_callback_t callback = NULL;
void *user_data = NULL;
QDF_TIMER_TYPE type = QDF_TIMER_TYPE_SW;
QDF_ASSERT(timer);
if (timer == NULL) {
QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
"%s Null pointer passed in!", __func__);
return;
}
qdf_spin_lock_irqsave(&timer->platform_info.spinlock);
switch (timer->state) {
case QDF_TIMER_STATE_STARTING:
/* we are in this state because someone just started the timer,
* MC timer got started and expired, but the time content have
* not been updated this is a rare race condition!
*/
timer->state = QDF_TIMER_STATE_STOPPED;
status = QDF_STATUS_E_ALREADY;
break;
case QDF_TIMER_STATE_STOPPED:
status = QDF_STATUS_E_ALREADY;
break;
case QDF_TIMER_STATE_UNUSED:
status = QDF_STATUS_E_EXISTS;
break;
case QDF_TIMER_STATE_RUNNING:
/* need to go to stop state here because the call-back function
* may restart timer (to emulate periodic timer)
*/
timer->state = QDF_TIMER_STATE_STOPPED;
/* copy the relevant timer information to local variables;
* once we exits from this critical section, the timer content
* may be modified by other tasks
*/
callback = timer->callback;
user_data = timer->user_data;
type = timer->type;
status = QDF_STATUS_SUCCESS;
break;
default:
QDF_ASSERT(0);
status = QDF_STATUS_E_FAULT;
break;
}
qdf_spin_unlock_irqrestore(&timer->platform_info.spinlock);
if (QDF_STATUS_SUCCESS != status) {
QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
"TIMER callback called in a wrong state=%d",
timer->state);
return;
}
qdf_try_allowing_sleep(type);
if (callback == NULL) {
QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
"%s: No TIMER callback, Could not enqueue timer to any queue",
__func__);
QDF_ASSERT(0);
return;
}
QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_INFO,
"TIMER callback: running on MC thread");
/* serialize to the MC thread */
sys_build_message_header(SYS_MSG_ID_MC_TIMER, &msg);
msg.callback = callback;
msg.bodyptr = user_data;
msg.bodyval = 0;
if (cds_mq_post_message(CDS_MQ_ID_SYS, &msg) == QDF_STATUS_SUCCESS)
return;
QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
"%s: Could not enqueue timer to any queue", __func__);
QDF_ASSERT(0);
}