68 lines
2.5 KiB
C
68 lines
2.5 KiB
C
/**************************************************************************
|
|
* 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>
|
|
#include <drm/drmP.h>
|
|
|
|
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);
|
|
|
|
/*
|
|
* 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_*/
|