diff options
Diffstat (limited to 'drivers/staging/cdv/imgv/msvdx_power.c')
| -rw-r--r-- | drivers/staging/cdv/imgv/msvdx_power.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/drivers/staging/cdv/imgv/msvdx_power.c b/drivers/staging/cdv/imgv/msvdx_power.c new file mode 100644 index 000000000000..7782a51f6d69 --- /dev/null +++ b/drivers/staging/cdv/imgv/msvdx_power.c @@ -0,0 +1,166 @@ +/* + * Copyright (c) 2011, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Authors: binglin.chen@intel.com> + * + */ + +#include "msvdx_power.h" +#include "psb_msvdx.h" +#include "psb_drv.h" + +#include "services_headers.h" +#include "sysconfig.h" + +static PVRSRV_ERROR DevInitMSVDXPart1(IMG_VOID *pvDeviceNode) +{ + PVRSRV_DEVICE_NODE *psDeviceNode = (PVRSRV_DEVICE_NODE *)pvDeviceNode; + PVRSRV_ERROR eError; + PVRSRV_DEV_POWER_STATE eDefaultPowerState; + + /* register power operation function */ + /* FIXME: this should be in part2 init function, but + * currently here only OSPM needs IMG device... */ + eDefaultPowerState = PVRSRV_DEV_POWER_STATE_OFF; + eError = PVRSRVRegisterPowerDevice(psDeviceNode->sDevId.ui32DeviceIndex, + MSVDXPrePowerState, + MSVDXPostPowerState, + MSVDXPreClockSpeedChange, + MSVDXPostClockSpeedChange, + (IMG_HANDLE)psDeviceNode, + PVRSRV_DEV_POWER_STATE_ON, + eDefaultPowerState); + if (eError != PVRSRV_OK) { + PVR_DPF((PVR_DBG_ERROR, "DevInitMSVDXPart1: failed to " + "register device with power manager")); + return eError; + } + + return PVRSRV_OK; +} + +static PVRSRV_ERROR DevDeInitMSVDX(IMG_VOID *pvDeviceNode) +{ + PVRSRV_DEVICE_NODE *psDeviceNode = (PVRSRV_DEVICE_NODE *)pvDeviceNode; + PVRSRV_ERROR eError; + + /* should deinit all resource */ + + eError = PVRSRVRemovePowerDevice(psDeviceNode->sDevId.ui32DeviceIndex); + if (eError != PVRSRV_OK) + return eError; + + return PVRSRV_OK; +} + +PVRSRV_ERROR MSVDXDevInitCompatCheck(PVRSRV_DEVICE_NODE *psDeviceNode) +{ + /* version check */ + + return PVRSRV_OK; +} + +PVRSRV_ERROR MSVDXRegisterDevice(PVRSRV_DEVICE_NODE *psDeviceNode) +{ + psDeviceNode->sDevId.eDeviceType = PVRSRV_DEVICE_TYPE_MSVDX; + psDeviceNode->sDevId.eDeviceClass = PVRSRV_DEVICE_CLASS_VIDEO; + + psDeviceNode->pfnInitDevice = DevInitMSVDXPart1; + psDeviceNode->pfnDeInitDevice = DevDeInitMSVDX; + + psDeviceNode->pfnInitDeviceCompatCheck = MSVDXDevInitCompatCheck; + + psDeviceNode->pfnDeviceISR = psb_msvdx_interrupt; + psDeviceNode->pvISRData = (IMG_VOID *)gpDrmDevice; + + return PVRSRV_OK; +} + +PVRSRV_ERROR MSVDXPrePowerState(IMG_HANDLE hDevHandle, + PVRSRV_DEV_POWER_STATE eNewPowerState, + PVRSRV_DEV_POWER_STATE eCurrentPowerState) +{ +#if 1 + /* ask for a change not power on*/ + if ((eNewPowerState != eCurrentPowerState) && + (eNewPowerState != PVRSRV_DEV_POWER_STATE_ON)) { + struct drm_psb_private *dev_priv = gpDrmDevice->dev_private; + struct msvdx_private *msvdx_priv = dev_priv->msvdx_private; + MSVDX_NEW_PMSTATE(gpDrmDevice, msvdx_priv, PSB_PMSTATE_POWERDOWN); + + /* context save */ + psb_msvdx_save_context(gpDrmDevice); + + /* internally close the device */ + + /* ask for power off */ + if (eNewPowerState == PVRSRV_DEV_POWER_STATE_OFF) { + /* here will deinitialize the driver if needed */ + } else { + PVR_DPF((PVR_DBG_MESSAGE, + "%s no action for transform from %d to %d", + __func__, + eCurrentPowerState, + eNewPowerState)); + } + } +#endif + return PVRSRV_OK; +} + +PVRSRV_ERROR MSVDXPostPowerState(IMG_HANDLE hDevHandle, + PVRSRV_DEV_POWER_STATE eNewPowerState, + PVRSRV_DEV_POWER_STATE eCurrentPowerState) +{ +#if 1 + /* if ask for change & current status is not on */ + if ((eNewPowerState != eCurrentPowerState) && + (eCurrentPowerState != PVRSRV_DEV_POWER_STATE_ON)) { + /* internally open device */ + struct drm_psb_private *dev_priv = gpDrmDevice->dev_private; + struct msvdx_private *msvdx_priv = dev_priv->msvdx_private; + MSVDX_NEW_PMSTATE(gpDrmDevice, msvdx_priv, PSB_PMSTATE_POWERUP); + + /* context restore */ + psb_msvdx_restore_context(gpDrmDevice); + + if (eCurrentPowerState == PVRSRV_DEV_POWER_STATE_OFF) { + /* here will initialize the driver if needed */ + } else { + PVR_DPF((PVR_DBG_MESSAGE, + "%s no action for transform from %d to %d", + __func__, + eCurrentPowerState, + eNewPowerState)); + } + } +#endif + return PVRSRV_OK; +} + +PVRSRV_ERROR MSVDXPreClockSpeedChange(IMG_HANDLE hDevHandle, + IMG_BOOL bIdleDevice, + PVRSRV_DEV_POWER_STATE eCurrentPowerState) +{ + return PVRSRV_OK; +} + +PVRSRV_ERROR MSVDXPostClockSpeedChange(IMG_HANDLE hDevHandle, + IMG_BOOL bIdleDevice, + PVRSRV_DEV_POWER_STATE eCurrentPowerState) +{ + return PVRSRV_OK; +} |