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/**
* Copyright (C) 2010-2011 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
*
* A copy of the licence is included with the program, and can also be obtained from Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/**
* @file mali_device_pause_resume.c
* Implementation of the Mali pause/resume functionality
*/
#if USING_MALI_PMM
#include <linux/version.h>
#include <linux/sched.h>
#include <linux/module.h>
#include "mali_osk.h"
#include "mali_kernel_common.h"
#include "mali_platform.h"
#include "mali_linux_pm.h"
#include "mali_device_pause_resume.h"
#include "mali_pmm.h"
#include "mali_kernel_license.h"
#ifdef CONFIG_PM
#if MALI_LICENSE_IS_GPL
/* Mali Pause Resume APIs */
int mali_dev_pause()
{
int err = 0;
_mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW);
if ((mali_dvfs_device_state == _MALI_DEVICE_SUSPEND) || (mali_device_state == _MALI_DEVICE_SUSPEND_IN_PROGRESS)
|| (mali_device_state == _MALI_DEVICE_SUSPEND)
#ifdef CONFIG_HAS_EARLYSUSPEND
|| (mali_device_state == _MALI_DEVICE_EARLYSUSPEND_DISABLE_FB))
#else
)
#endif
{
err = -EPERM;
}
if ((mali_dvfs_device_state == _MALI_DEVICE_RESUME) && (!err))
{
mali_device_suspend(MALI_PMM_EVENT_DVFS_PAUSE, &dvfs_pm_thread);
mali_dvfs_device_state = _MALI_DEVICE_SUSPEND;
}
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return err;
}
EXPORT_SYMBOL(mali_dev_pause);
int mali_dev_resume()
{
int err = 0;
_mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW);
if ((mali_dvfs_device_state == _MALI_DEVICE_RESUME) || (mali_device_state == _MALI_DEVICE_SUSPEND_IN_PROGRESS)
|| (mali_device_state == _MALI_DEVICE_SUSPEND)
#ifdef CONFIG_HAS_EARLYSUSPEND
|| (mali_device_state == _MALI_DEVICE_EARLYSUSPEND_DISABLE_FB))
#else
)
#endif
{
err = -EPERM;
}
if (!err)
{
mali_device_resume(MALI_PMM_EVENT_DVFS_RESUME, &dvfs_pm_thread);
mali_dvfs_device_state = _MALI_DEVICE_RESUME;
}
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return err;
}
EXPORT_SYMBOL(mali_dev_resume);
#endif /* MALI_LICENSE_IS_GPL */
#endif /* CONFIG_PM */
#endif /* USING_MALI_PMM */
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