/*
 * Copyright (C) 2010-2012 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_pmm_policy_alwayson.c
 * Implementation of the power management module policy - always on
 */

#if USING_MALI_PMM

#include "mali_ukk.h"
#include "mali_kernel_common.h"

#include "mali_pmm.h"
#include "mali_pmm_system.h"
#include "mali_pmm_state.h"
#include "mali_pmm_policy_alwayson.h"

_mali_osk_errcode_t pmm_policy_init_always_on(void)
{
	/* Nothing to set up */
	MALI_SUCCESS;
}

void pmm_policy_term_always_on(void)
{
	/* Nothing to tear down */
}

_mali_osk_errcode_t pmm_policy_process_always_on( _mali_pmm_internal_state_t *pmm, mali_pmm_message_t *event )
{
	MALI_DEBUG_ASSERT_POINTER(pmm);
	MALI_DEBUG_ASSERT_POINTER(event);

	switch( event->id )
	{
		case MALI_PMM_EVENT_OS_POWER_DOWN:
			/* We aren't going to do anything, but signal so we don't block the OS
			 * NOTE: This may adversely affect any jobs Mali is currently running
			 */
			_mali_osk_pmm_power_down_done( event->data );
		break;

		case MALI_PMM_EVENT_INTERNAL_POWER_UP_ACK:
		case MALI_PMM_EVENT_INTERNAL_POWER_DOWN_ACK:
			/* Not expected in this policy */
			MALI_DEBUG_ASSERT( MALI_FALSE );
		break;

		case MALI_PMM_EVENT_OS_POWER_UP:
			/* Nothing to do */
			_mali_osk_pmm_power_up_done( event->data );
		break;
		
		case MALI_PMM_EVENT_JOB_SCHEDULED:
		case MALI_PMM_EVENT_JOB_QUEUED:
		case MALI_PMM_EVENT_JOB_FINISHED:
			/* Nothing to do - we are always on */
		break;
	
		case MALI_PMM_EVENT_TIMEOUT:
			/* Not expected in this policy */
			MALI_DEBUG_ASSERT( MALI_FALSE );
		break;

		default:
		MALI_ERROR(_MALI_OSK_ERR_ITEM_NOT_FOUND);
	}

	MALI_SUCCESS;
}

#endif