static PVRSRV_ERROR DestroyDCSwapChain(IMG_HANDLE hDevice,
IMG_HANDLE hSwapChain)
{
MTKLFB_DEVINFO *psDevInfo;
MTKLFB_SWAPCHAIN *psSwapChain;
MTKLFB_ERROR eError;
if(!hDevice || !hSwapChain)
{
return PVRSRV_ERROR_INVALID_PARAMS;
}
psDevInfo = (MTKLFB_DEVINFO*)hDevice;
psSwapChain = (MTKLFB_SWAPCHAIN*)hSwapChain;
MTKLFBCreateSwapChainLock(psDevInfo);
if (SwapChainHasChanged(psDevInfo, psSwapChain))
{
printk(KERN_WARNING DRIVER_PREFIX
": %s: Device %u: Swap chain mismatch\n", __FUNCTION__, psDevInfo->uiFBDevID);
eError = PVRSRV_ERROR_INVALID_PARAMS;
goto ExitUnLock;
}
MTKLFBDestroySwapQueue(psSwapChain);
eError = MTKLFBDisableLFBEventNotification(psDevInfo);
if (eError != MTKLFB_OK)
{
printk(KERN_WARNING DRIVER_PREFIX ": %s: Device %u: Couldn't disable framebuffer event notification\n", __FUNCTION__, psDevInfo->uiFBDevID);
}
MTKLFBFreeKernelMem(psSwapChain->psBuffer);
MTKLFBFreeKernelMem(psSwapChain);
psDevInfo->psSwapChain = NULL;
MTKLFBFlip(psDevInfo, &psDevInfo->sSystemBuffer);
(void) MTKLFBCheckModeAndSync(psDevInfo);
eError = PVRSRV_OK;
ExitUnLock:
MTKLFBCreateSwapChainUnLock(psDevInfo);
return eError;
}
int PVR_DRM_MAKENAME(DISPLAY_CONTROLLER, _Ioctl)(struct drm_device unref__ *dev, void *arg, struct drm_file unref__ *pFile)
{
uint32_t *puiArgs;
uint32_t uiCmd;
unsigned uiPVRDevID;
int ret = 0;
MTKLFB_DEVINFO *psDevInfo;
if (arg == NULL)
{
return -EFAULT;
}
puiArgs = (uint32_t *)arg;
uiCmd = puiArgs[PVR_DRM_DISP_ARG_CMD];
uiPVRDevID = puiArgs[PVR_DRM_DISP_ARG_DEV];
psDevInfo = MTKLFBPVRDevIDToDevInfo(uiPVRDevID);
if (psDevInfo == NULL)
{
return -EINVAL;
}
switch (uiCmd)
{
case PVR_DRM_DISP_CMD_LEAVE_VT:
case PVR_DRM_DISP_CMD_ENTER_VT:
{
MTKLFB_BOOL bLeaveVT = (uiCmd == PVR_DRM_DISP_CMD_LEAVE_VT);
DEBUG_PRINTK((KERN_WARNING DRIVER_PREFIX ": %s: PVR Device %u: %s\n",
__FUNCTION__, uiPVRDevID,
bLeaveVT ? "Leave VT" : "Enter VT"));
MTKLFBCreateSwapChainLock(psDevInfo);
MTKLFBAtomicBoolSet(&psDevInfo->sLeaveVT, bLeaveVT);
if (psDevInfo->psSwapChain != NULL)
{
flush_workqueue(psDevInfo->psSwapChain->psWorkQueue);
if (bLeaveVT)
{
MTKLFBFlip(psDevInfo, &psDevInfo->sSystemBuffer);
(void) MTKLFBCheckModeAndSync(psDevInfo);
}
}
MTKLFBCreateSwapChainUnLock(psDevInfo);
(void) MTKLFBUnblankDisplay(psDevInfo);
break;
}
case PVR_DRM_DISP_CMD_ON:
case PVR_DRM_DISP_CMD_STANDBY:
case PVR_DRM_DISP_CMD_SUSPEND:
case PVR_DRM_DISP_CMD_OFF:
{
int iFBMode;
#if defined(DEBUG)
{
const char *pszMode;
switch(uiCmd)
{
case PVR_DRM_DISP_CMD_ON:
pszMode = "On";
break;
case PVR_DRM_DISP_CMD_STANDBY:
pszMode = "Standby";
break;
case PVR_DRM_DISP_CMD_SUSPEND:
pszMode = "Suspend";
break;
case PVR_DRM_DISP_CMD_OFF:
pszMode = "Off";
break;
default:
pszMode = "(Unknown Mode)";
break;
}
printk (KERN_WARNING DRIVER_PREFIX ": %s: PVR Device %u: Display %s\n",
__FUNCTION__, uiPVRDevID, pszMode);
}
#endif
switch(uiCmd)
{
case PVR_DRM_DISP_CMD_ON:
iFBMode = FB_BLANK_UNBLANK;
break;
case PVR_DRM_DISP_CMD_STANDBY:
iFBMode = FB_BLANK_HSYNC_SUSPEND;
break;
case PVR_DRM_DISP_CMD_SUSPEND:
iFBMode = FB_BLANK_VSYNC_SUSPEND;
break;
case PVR_DRM_DISP_CMD_OFF:
iFBMode = FB_BLANK_POWERDOWN;
break;
default:
return -EINVAL;
}
MTKLFBCreateSwapChainLock(psDevInfo);
if (psDevInfo->psSwapChain != NULL)
{
flush_workqueue(psDevInfo->psSwapChain->psWorkQueue);
}
acquire_console_sem();
ret = fb_blank(psDevInfo->psLINFBInfo, iFBMode);
release_console_sem();
MTKLFBCreateSwapChainUnLock(psDevInfo);
break;
}
default:
{
ret = -EINVAL;
break;
}
}
return ret;
}