[mirror_ubuntu-artful-kernel.git] / drivers / staging / gma500 / psb_powermgmt.h

/**************************************************************************
 * Copyright (c) 2009, 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 pci_dev *pdev, pm_message_t state);
int gma_power_resume(struct pci_dev *pdev);

/*
 * 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_*/
Commit	Line	Data
0867b421 AC	1	/**************************************************************************
	2	* Copyright (c) 2009, Intel Corporation.
	3	* All Rights Reserved.
	4
	5	* Permission is hereby granted, free of charge, to any person obtaining a
	6	* copy of this software and associated documentation files (the "Software"),
	7	* to deal in the Software without restriction, including without limitation
	8	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	9	* and/or sell copies of the Software, and to permit persons to whom the
	10	* Software is furnished to do so, subject to the following conditions:
	11	*
	12	* The above copyright notice and this permission notice (including the next
	13	* paragraph) shall be included in all copies or substantial portions of the
	14	* Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	22	* SOFTWARE.
	23	*
	24	* Authors:
	25	* Benjamin Defnet <benjamin.r.defnet@intel.com>
	26	* Rajesh Poornachandran <rajesh.poornachandran@intel.com>
c3460fd3 AC	27	* Massively reworked
c3460fd3 AC	28	* Alan Cox <alan@linux.intel.com>
0867b421 AC	29	*/
	30	#ifndef _PSB_POWERMGMT_H_
	31	#define _PSB_POWERMGMT_H_
	32
	33	#include <linux/pci.h>
	34	#include <drm/drmP.h>
	35
c3460fd3 AC	36	void gma_power_init(struct drm_device *dev);
c3460fd3 AC	37	void gma_power_uninit(struct drm_device *dev);
0867b421 AC	38
0867b421 AC	39	/*
c3460fd3	40	* The kernel bus power management will call these functions
0867b421	41	*/
c3460fd3 AC	42	int gma_power_suspend(struct pci_dev *pdev, pm_message_t state);
c3460fd3 AC	43	int gma_power_resume(struct pci_dev *pdev);
0867b421 AC	44
	45	/*
	46	* These are the functions the driver should use to wrap all hw access
	47	* (i.e. register reads and writes)
	48	*/
c3460fd3 AC	49	bool gma_power_begin(struct drm_device *dev, bool force);
c3460fd3 AC	50	void gma_power_end(struct drm_device *dev);
0867b421 AC	51
	52	/*
	53	* Use this function to do an instantaneous check for if the hw is on.
c3460fd3 AC	54	* Only use this in cases where you know the mutex is already held such
	55	* as in irq install/uninstall and you need to
	56	* prevent a deadlock situation. Otherwise use gma_power_begin().
0867b421	57	*/
c3460fd3	58	bool gma_power_is_on(struct drm_device *dev);
0867b421	59
0867b421 AC	60	/*
	61	* GFX-Runtime PM callbacks
	62	*/
	63	int psb_runtime_suspend(struct device *dev);
	64	int psb_runtime_resume(struct device *dev);
	65	int psb_runtime_idle(struct device *dev);
0867b421 AC	66
0867b421 AC	67	#endif /_PSB_POWERMGMT_H_/