pvr/power.h

   1 /**********************************************************************
   2  *
   3  * Copyright(c) 2008 Imagination Technologies Ltd. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2, as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope it will be useful but, except
  10  * as otherwise stated in writing, without any warranty; without even the
  11  * implied warranty of merchantability or fitness for a particular purpose.
  12  * See the GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * The full GNU General Public License is included in this distribution in
  19  * the file called "COPYING".
  20  *
  21  * Contact Information:
  22  * Imagination Technologies Ltd. <gpl-support@imgtec.com>
  23  * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
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  25  ******************************************************************************/
  26
  27 #ifndef POWER_H
  28 #define POWER_H
  29
  30 struct PVRSRV_POWER_DEV {
  31         enum PVRSRV_ERROR (*pfnPrePower)(void *, enum PVR_POWER_STATE,
  32                               enum PVR_POWER_STATE);
  33         enum PVRSRV_ERROR (*pfnPostPower)(void *, enum PVR_POWER_STATE,
  34                                enum PVR_POWER_STATE);
  35         enum PVRSRV_ERROR (*pfnPreClockSpeedChange)(void *, IMG_BOOL,
  36                                           enum PVR_POWER_STATE);
  37         enum PVRSRV_ERROR (*pfnPostClockSpeedChange)(void *, IMG_BOOL,
  38                                            enum PVR_POWER_STATE);
  39         void *hDevCookie;
  40         u32 ui32DeviceIndex;
  41         enum PVR_POWER_STATE eDefaultPowerState;
  42         enum PVR_POWER_STATE eCurrentPowerState;
  43         struct PVRSRV_POWER_DEV *psNext;
  44
  45 };
  46
  47 enum PVRSRV_INIT_SERVER_STATE {
  48         PVRSRV_INIT_SERVER_Unspecified = -1,
  49         PVRSRV_INIT_SERVER_RUNNING = 0,
  50         PVRSRV_INIT_SERVER_RAN = 1,
  51         PVRSRV_INIT_SERVER_SUCCESSFUL = 2,
  52         PVRSRV_INIT_SERVER_NUM = 3,
  53         PVRSRV_INIT_SERVER_FORCE_I32 = 0x7fffffff
  54 };
  55
  56 IMG_BOOL PVRSRVGetInitServerState(enum PVRSRV_INIT_SERVER_STATE
  57                 eInitServerState);
  58
  59 enum PVRSRV_ERROR PVRSRVSetInitServerState(enum PVRSRV_INIT_SERVER_STATE
  60                 eInitServerState,
  61                 IMG_BOOL bState);
  62
  63 enum PVRSRV_ERROR PVRSRVPowerLock(u32 ui32CallerID,
  64                 IMG_BOOL bSystemPowerEvent);
  65 void PVRSRVPowerUnlock(u32 ui32CallerID);
  66 void PVRSRVDvfsLock(void);
  67 void PVRSRVDvfsUnlock(void);
  68
  69 enum PVRSRV_ERROR PVRSRVSetDevicePowerStateKM(u32 ui32DeviceIndex,
  70                 enum PVR_POWER_STATE eNewPowerState, u32 ui32CallerID,
  71                 IMG_BOOL bRetainMutex);
  72
  73 enum PVRSRV_ERROR PVRSRVSystemPrePowerStateKM(
  74                 enum PVR_POWER_STATE eNewPowerState);
  75 enum PVRSRV_ERROR PVRSRVSystemPostPowerStateKM(
  76                 enum PVR_POWER_STATE eNewPowerState);
  77
  78 enum PVRSRV_ERROR PVRSRVSetPowerStateKM(enum PVR_POWER_STATE ePVRState);
  79
  80 enum PVRSRV_ERROR PVRSRVRegisterPowerDevice(u32 ui32DeviceIndex,
  81                 enum PVRSRV_ERROR (*pfnPrePower)(void *, enum PVR_POWER_STATE,
  82                                             enum PVR_POWER_STATE),
  83                 enum PVRSRV_ERROR (*pfnPostPower)(void *, enum PVR_POWER_STATE,
  84                                              enum PVR_POWER_STATE),
  85                 enum PVRSRV_ERROR (*pfnPreClockSpeedChange)(void *, IMG_BOOL,
  86                                                        enum PVR_POWER_STATE),
  87                 enum PVRSRV_ERROR (*pfnPostClockSpeedChange)(void *, IMG_BOOL,
  88                                                         enum PVR_POWER_STATE),
  89                 void *hDevCookie, enum PVR_POWER_STATE eCurrentPowerState,
  90                 enum PVR_POWER_STATE eDefaultPowerState);
  91
  92 enum PVRSRV_ERROR PVRSRVRemovePowerDevice(u32 ui32DeviceIndex);
  93
  94 IMG_BOOL PVRSRVIsDevicePowered(u32 ui32DeviceIndex);
  95
  96 enum PVRSRV_ERROR PVRSRVDevicePreClockSpeedChange(u32 ui32DeviceIndex,
  97                 IMG_BOOL bIdleDevice,
  98                 void *pvInfo);
  99
 100 void PVRSRVDevicePostClockSpeedChange(u32 ui32DeviceIndex,
 101                 IMG_BOOL bIdleDevice,
 102                 void *pvInfo);
 103
 104 #endif