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