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/**************************************************************************
* Copyright (c) 2009-2011, Intel Corporation.
* All Rights Reserved.
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Benjamin Defnet <benjamin.r.defnet@intel.com>
* Rajesh Poornachandran <rajesh.poornachandran@intel.com>
* Massively reworked
* Alan Cox <alan@linux.intel.com>
*/
#ifndef _PSB_POWERMGMT_H_
#define _PSB_POWERMGMT_H_
#include <linux/pci.h>
struct device;
struct drm_device;
void gma_power_init(struct drm_device *dev);
void gma_power_uninit(struct drm_device *dev);
/*
* The kernel bus power management will call these functions
*/
int gma_power_suspend(struct device *dev);
int gma_power_resume(struct device *dev);
int gma_power_thaw(struct device *dev);
int gma_power_freeze(struct device *dev);
int gma_power_restore(struct device *_dev);
/*
* These are the functions the driver should use to wrap all hw access
* (i.e. register reads and writes)
*/
bool gma_power_begin(struct drm_device *dev, bool force);
void gma_power_end(struct drm_device *dev);
/*
* Use this function to do an instantaneous check for if the hw is on.
* Only use this in cases where you know the mutex is already held such
* as in irq install/uninstall and you need to
* prevent a deadlock situation. Otherwise use gma_power_begin().
*/
bool gma_power_is_on(struct drm_device *dev);
/*
* GFX-Runtime PM callbacks
*/
int psb_runtime_suspend(struct device *dev);
int psb_runtime_resume(struct device *dev);
int psb_runtime_idle(struct device *dev);
#endif /*_PSB_POWERMGMT_H_*/
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