/*************************************************************************/ /*! @Title NOHW display driver display-specific functions @Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved @License Dual MIT/GPLv2 The contents of this file are subject to the MIT license as set out below. 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 shall be included in all copies or substantial portions of the Software. Alternatively, the contents of this file may be used under the terms of the GNU General Public License Version 2 ("GPL") in which case the provisions of GPL are applicable instead of those above. If you wish to allow use of your version of this file only under the terms of GPL, and not to allow others to use your version of this file under the terms of the MIT license, indicate your decision by deleting the provisions above and replace them with the notice and other provisions required by GPL as set out in the file called "GPL-COPYING" included in this distribution. If you do not delete the provisions above, a recipient may use your version of this file under the terms of either the MIT license or GPL. This License is also included in this distribution in the file called "MIT-COPYING". EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) 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; AND (B) 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. */ /**************************************************************************/ /************************************************************************** The 3rd party driver is a specification of an API to integrate the IMG POWERVR Services driver with 3rd Party display hardware. It is NOT a specification for a display controller driver, rather a specification to extend the API for a pre-existing driver for the display hardware. The 3rd party driver interface provides IMG POWERVR client drivers (e.g. PVR2D) with an API abstraction of the system's underlying display hardware, allowing the client drivers to indirectly control the display hardware and access its associated memory. Functions of the API include - query primary surface attributes (width, height, stride, pixel format, CPU physical and virtual address) - swap/flip chain creation and subsequent query of surface attributes - asynchronous display surface flipping, taking account of asynchronous read (flip) and write (render) operations to the display surface Note: having queried surface attributes the client drivers are able to map the display memory to any IMG POWERVR Services device by calling PVRSRVMapDeviceClassMemory with the display surface handle. This code is intended to be an example of how a pre-existing display driver may be extended to support the 3rd Party Display interface to POWERVR Services - IMG is not providing a display driver implementation. **************************************************************************/ #if defined(__linux__) #include #else #include #endif /* IMG services headers */ #include "img_defs.h" #include "servicesext.h" #include "kerneldisplay.h" #include "dc_nohw.h" #define DISPLAY_DEVICE_NAME "DC_NOHW" #define DC_NOHW_COMMAND_COUNT 1 /* top level 'hook ptr' */ static void *gpvAnchor = 0; static PFN_DC_GET_PVRJTABLE pfnGetPVRJTable = 0; /* Kernel services is a kernel module and must be loaded first. The display controller driver is also a kernel module and must be loaded after the pvr services module. The display controller driver should be able to retrieve the address of the services PVRGetDisplayClassJTable from (the already loaded) kernel services module. */ /* returns anchor pointer */ static DC_NOHW_DEVINFO * GetAnchorPtr(void) { return (DC_NOHW_DEVINFO *)gpvAnchor; } /* sets anchor pointer */ static void SetAnchorPtr(DC_NOHW_DEVINFO *psDevInfo) { gpvAnchor = (void *)psDevInfo; } #if !defined(DC_NOHW_DISCONTIG_BUFFERS) && !defined(USE_BASE_VIDEO_FRAMEBUFFER) IMG_SYS_PHYADDR CpuPAddrToSysPAddr(IMG_CPU_PHYADDR cpu_paddr) { IMG_SYS_PHYADDR sys_paddr; /* This would only be an inequality if the CPU's MMU did not point to sys address 0, ie. multi CPU system */ sys_paddr.uiAddr = cpu_paddr.uiAddr; return sys_paddr; } IMG_CPU_PHYADDR SysPAddrToCpuPAddr(IMG_SYS_PHYADDR sys_paddr) { IMG_CPU_PHYADDR cpu_paddr; /* This would only be an inequality if the CPU's MMU did not point to sys address 0, ie. multi CPU system */ cpu_paddr.uiAddr = sys_paddr.uiAddr; return cpu_paddr; } #endif static PVRSRV_ERROR OpenDCDevice(IMG_UINT32 ui32DeviceID, IMG_HANDLE *phDevice, PVRSRV_SYNC_DATA* psSystemBufferSyncData) { DC_NOHW_DEVINFO *psDevInfo; PVR_UNREFERENCED_PARAMETER(ui32DeviceID); psDevInfo = GetAnchorPtr(); #if defined (ENABLE_DISPLAY_MODE_TRACKING) if (Shadow_Desktop_Resolution(psDevInfo) != DC_OK) { return (PVRSRV_ERROR_NOT_SUPPORTED); } #endif /* store the system surface sync data */ psDevInfo->asBackBuffers[0].psSyncData = psSystemBufferSyncData; /* return handle to the devinfo */ *phDevice = (IMG_HANDLE)psDevInfo; #if defined(USE_BASE_VIDEO_FRAMEBUFFER) return (SetupDevInfo(psDevInfo)); #else return (PVRSRV_OK); #endif } static PVRSRV_ERROR CloseDCDevice(IMG_HANDLE hDevice) { UNREFERENCED_PARAMETER(hDevice); #if defined(USE_BASE_VIDEO_FRAMEBUFFER) FreeBackBuffers(GetAnchorPtr()); #endif return (PVRSRV_OK); } static PVRSRV_ERROR EnumDCFormats(IMG_HANDLE hDevice, IMG_UINT32 *pui32NumFormats, DISPLAY_FORMAT *psFormat) { DC_NOHW_DEVINFO *psDevInfo; if(!hDevice || !pui32NumFormats) { return (PVRSRV_ERROR_INVALID_PARAMS); } psDevInfo = (DC_NOHW_DEVINFO *)hDevice; *pui32NumFormats = (IMG_UINT32)psDevInfo->ulNumFormats; if(psFormat != IMG_NULL) { unsigned long i; for(i=0; iulNumFormats; i++) { psFormat[i] = psDevInfo->asDisplayFormatList[i]; } } return (PVRSRV_OK); } static PVRSRV_ERROR EnumDCDims(IMG_HANDLE hDevice, DISPLAY_FORMAT *psFormat, IMG_UINT32 *pui32NumDims, DISPLAY_DIMS *psDim) { DC_NOHW_DEVINFO *psDevInfo; if(!hDevice || !psFormat || !pui32NumDims) { return (PVRSRV_ERROR_INVALID_PARAMS); } psDevInfo = (DC_NOHW_DEVINFO *)hDevice; *pui32NumDims = (IMG_UINT32)psDevInfo->ulNumDims; /* given psFormat return the available Dims */ if(psDim != IMG_NULL) { unsigned long i; for(i=0; iulNumDims; i++) { psDim[i] = psDevInfo->asDisplayDimList[i]; } } return (PVRSRV_OK); } static PVRSRV_ERROR GetDCSystemBuffer(IMG_HANDLE hDevice, IMG_HANDLE *phBuffer) { DC_NOHW_DEVINFO *psDevInfo; if(!hDevice || !phBuffer) { return (PVRSRV_ERROR_INVALID_PARAMS); } psDevInfo = (DC_NOHW_DEVINFO *)hDevice; *phBuffer = (IMG_HANDLE)&psDevInfo->asBackBuffers[0]; return (PVRSRV_OK); } static PVRSRV_ERROR GetDCInfo(IMG_HANDLE hDevice, DISPLAY_INFO *psDCInfo) { DC_NOHW_DEVINFO *psDevInfo; if(!hDevice || !psDCInfo) { return (PVRSRV_ERROR_INVALID_PARAMS); } psDevInfo = (DC_NOHW_DEVINFO *)hDevice; *psDCInfo = psDevInfo->sDisplayInfo; return (PVRSRV_OK); } static PVRSRV_ERROR GetDCBufferAddr(IMG_HANDLE hDevice, IMG_HANDLE hBuffer, IMG_SYS_PHYADDR **ppsSysAddr, IMG_UINT32 *pui32ByteSize, IMG_VOID **ppvCpuVAddr, IMG_HANDLE *phOSMapInfo, IMG_BOOL *pbIsContiguous, IMG_UINT32 *pui32TilingStride) { DC_NOHW_DEVINFO *psDevInfo; DC_NOHW_BUFFER *psBuffer; if(!hDevice || !hBuffer || !ppsSysAddr || !pui32ByteSize) { return (PVRSRV_ERROR_INVALID_PARAMS); } psDevInfo = (DC_NOHW_DEVINFO *)hDevice; psBuffer = (DC_NOHW_BUFFER*)hBuffer; *ppvCpuVAddr = psBuffer->sCPUVAddr; *pui32ByteSize = (IMG_UINT32)(psDevInfo->asDisplayDimList[0].ui32Height * psDevInfo->asDisplayDimList[0].ui32ByteStride); *phOSMapInfo = IMG_NULL; #if defined(DC_NOHW_DISCONTIG_BUFFERS) *ppsSysAddr = psBuffer->psSysAddr; *pbIsContiguous = IMG_FALSE; #else *ppsSysAddr = &psBuffer->sSysAddr; *pbIsContiguous = IMG_TRUE; #endif #if defined(SUPPORT_MEMORY_TILING) { IMG_UINT32 ui32Stride = psDevInfo->asDisplayDimList[0].ui32ByteStride; IMG_UINT32 ui32NumBits = 0, ui32StrideTopBit, n; // How many bits for x? for(n = 0; n < 32; n++) { if(ui32Stride & (1<psSwapChain) { return (PVRSRV_ERROR_FLIP_CHAIN_EXISTS); } /* check the buffer count */ if(ui32BufferCount > DC_NOHW_MAX_BACKBUFFERS) { return (PVRSRV_ERROR_TOOMANYBUFFERS); } /* verify the DST/SRC attributes - SRC/DST must match the current display mode config */ if(psDstSurfAttrib->pixelformat != psDevInfo->sSysFormat.pixelformat || psDstSurfAttrib->sDims.ui32ByteStride != psDevInfo->sSysDims.ui32ByteStride || psDstSurfAttrib->sDims.ui32Width != psDevInfo->sSysDims.ui32Width || psDstSurfAttrib->sDims.ui32Height != psDevInfo->sSysDims.ui32Height) { /* DST doesn't match the current mode */ return (PVRSRV_ERROR_INVALID_PARAMS); } if(psDstSurfAttrib->pixelformat != psSrcSurfAttrib->pixelformat || psDstSurfAttrib->sDims.ui32ByteStride != psSrcSurfAttrib->sDims.ui32ByteStride || psDstSurfAttrib->sDims.ui32Width != psSrcSurfAttrib->sDims.ui32Width || psDstSurfAttrib->sDims.ui32Height != psSrcSurfAttrib->sDims.ui32Height) { /* DST doesn't match the SRC */ return (PVRSRV_ERROR_INVALID_PARAMS); } /* INTEGRATION_POINT: check the flags */ UNREFERENCED_PARAMETER(ui32Flags); /* create a swapchain structure */ psSwapChain = (DC_NOHW_SWAPCHAIN*)AllocKernelMem(sizeof(DC_NOHW_SWAPCHAIN)); if(!psSwapChain) { return (PVRSRV_ERROR_OUT_OF_MEMORY); } psBuffer = (DC_NOHW_BUFFER*)AllocKernelMem(sizeof(DC_NOHW_BUFFER) * ui32BufferCount); if(!psBuffer) { FreeKernelMem(psSwapChain); return (PVRSRV_ERROR_OUT_OF_MEMORY); } /* initialise allocations */ memset(psSwapChain, 0, sizeof(DC_NOHW_SWAPCHAIN)); memset(psBuffer, 0, sizeof(DC_NOHW_BUFFER) * ui32BufferCount); psSwapChain->ulBufferCount = (unsigned long)ui32BufferCount; psSwapChain->psBuffer = psBuffer; /* link the buffers */ for(i=0; iasBackBuffers[i].psSysAddr; #else psBuffer[i].sSysAddr = psDevInfo->asBackBuffers[i].sSysAddr; #endif psBuffer[i].sDevVAddr = psDevInfo->asBackBuffers[i].sDevVAddr; psBuffer[i].sCPUVAddr = psDevInfo->asBackBuffers[i].sCPUVAddr; psBuffer[i].hSwapChain = (DC_HANDLE)psSwapChain; } /* mark swapchain's existence */ psDevInfo->psSwapChain = psSwapChain; /* return swapchain handle */ *phSwapChain = (IMG_HANDLE)psSwapChain; /* INTEGRATION_POINT: enable Vsync ISR */ return (PVRSRV_OK); } static PVRSRV_ERROR DestroyDCSwapChain(IMG_HANDLE hDevice, IMG_HANDLE hSwapChain) { DC_NOHW_DEVINFO *psDevInfo; DC_NOHW_SWAPCHAIN *psSwapChain; /* check parameters */ if(!hDevice || !hSwapChain) { return (PVRSRV_ERROR_INVALID_PARAMS); } psDevInfo = (DC_NOHW_DEVINFO*)hDevice; psSwapChain = (DC_NOHW_SWAPCHAIN*)hSwapChain; /* free resources */ FreeKernelMem(psSwapChain->psBuffer); FreeKernelMem(psSwapChain); /* mark swapchain as not existing */ psDevInfo->psSwapChain = 0; /* INTEGRATION_POINT: disable Vsync ISR */ return (PVRSRV_OK); } static PVRSRV_ERROR SetDCDstRect(IMG_HANDLE hDevice, IMG_HANDLE hSwapChain, IMG_RECT *psRect) { UNREFERENCED_PARAMETER(hDevice); UNREFERENCED_PARAMETER(hSwapChain); UNREFERENCED_PARAMETER(psRect); return (PVRSRV_ERROR_NOT_SUPPORTED); } static PVRSRV_ERROR SetDCSrcRect(IMG_HANDLE hDevice, IMG_HANDLE hSwapChain, IMG_RECT *psRect) { UNREFERENCED_PARAMETER(hDevice); UNREFERENCED_PARAMETER(hSwapChain); UNREFERENCED_PARAMETER(psRect); return (PVRSRV_ERROR_NOT_SUPPORTED); } static PVRSRV_ERROR SetDCDstColourKey(IMG_HANDLE hDevice, IMG_HANDLE hSwapChain, IMG_UINT32 ui32CKColour) { UNREFERENCED_PARAMETER(hDevice); UNREFERENCED_PARAMETER(hSwapChain); UNREFERENCED_PARAMETER(ui32CKColour); return (PVRSRV_ERROR_NOT_SUPPORTED); } static PVRSRV_ERROR SetDCSrcColourKey(IMG_HANDLE hDevice, IMG_HANDLE hSwapChain, IMG_UINT32 ui32CKColour) { UNREFERENCED_PARAMETER(hDevice); UNREFERENCED_PARAMETER(hSwapChain); UNREFERENCED_PARAMETER(ui32CKColour); return (PVRSRV_ERROR_NOT_SUPPORTED); } static PVRSRV_ERROR GetDCBuffers(IMG_HANDLE hDevice, IMG_HANDLE hSwapChain, IMG_UINT32 *pui32BufferCount, IMG_HANDLE *phBuffer) { /* DC_NOHW_DEVINFO *psDevInfo; */ DC_NOHW_SWAPCHAIN *psSwapChain; unsigned long i; /* check parameters */ if(!hDevice || !hSwapChain || !pui32BufferCount || !phBuffer) { return (PVRSRV_ERROR_INVALID_PARAMS); } /* psDevInfo = (DC_NOHW_DEVINFO*)hDevice; */ psSwapChain = (DC_NOHW_SWAPCHAIN*)hSwapChain; /* return the buffer count */ *pui32BufferCount = (IMG_UINT32)psSwapChain->ulBufferCount; /* return the buffers */ for(i=0; iulBufferCount; i++) { phBuffer[i] = (IMG_HANDLE)&psSwapChain->psBuffer[i]; } return (PVRSRV_OK); } static PVRSRV_ERROR SwapToDCBuffer(IMG_HANDLE hDevice, IMG_HANDLE hBuffer, IMG_UINT32 ui32SwapInterval, IMG_HANDLE hPrivateTag, IMG_UINT32 ui32ClipRectCount, IMG_RECT *psClipRect) { UNREFERENCED_PARAMETER(ui32SwapInterval); UNREFERENCED_PARAMETER(hPrivateTag); UNREFERENCED_PARAMETER(psClipRect); if(!hDevice || !hBuffer || (ui32ClipRectCount != 0)) { return (PVRSRV_ERROR_INVALID_PARAMS); } /* nothing to do for no hw */ return (PVRSRV_OK); } static DC_ERROR Flip(DC_NOHW_DEVINFO *psDevInfo, DC_NOHW_BUFFER *psBuffer) { /* check parameters */ if(!psDevInfo || !psBuffer) { return (DC_ERROR_INVALID_PARAMS); } /* to be implemented */ return (DC_OK); } static IMG_BOOL ProcessFlip(IMG_HANDLE hCmdCookie, IMG_UINT32 ui32DataSize, IMG_VOID *pvData) { DC_ERROR eError; DISPLAYCLASS_FLIP_COMMAND *psFlipCmd; DC_NOHW_DEVINFO *psDevInfo; DC_NOHW_BUFFER *psBuffer; /* check parameters */ if(!hCmdCookie) { return (IMG_FALSE); } /* validate data packet */ psFlipCmd = (DISPLAYCLASS_FLIP_COMMAND*)pvData; if (psFlipCmd == IMG_NULL || sizeof(DISPLAYCLASS_FLIP_COMMAND) != ui32DataSize) { return (IMG_FALSE); } /* setup some useful pointers */ psDevInfo = (DC_NOHW_DEVINFO*)psFlipCmd->hExtDevice; psBuffer = (DC_NOHW_BUFFER*)psFlipCmd->hExtBuffer; /* flip the display */ eError = Flip(psDevInfo, psBuffer); if(eError != DC_OK) { return (IMG_FALSE); } /* call command complete Callback */ psDevInfo->sPVRJTable.pfnPVRSRVCmdComplete(hCmdCookie, IMG_FALSE); return (IMG_TRUE); } DC_ERROR Init(void) { DC_NOHW_DEVINFO *psDevInfo; DC_ERROR eError; unsigned long ulBBuf; unsigned long ulNBBuf; /* - connect to services - register with services - allocate and setup private data structure */ /* in kernel driver, data structures must be anchored to something for subsequent retrieval this may be a single global pointer or TLS or something else - up to you call API to retrieve this ptr */ /* get the anchor pointer */ psDevInfo = GetAnchorPtr(); if (psDevInfo == 0) { PFN_CMD_PROC pfnCmdProcList[DC_NOHW_COMMAND_COUNT]; IMG_UINT32 aui32SyncCountList[DC_NOHW_COMMAND_COUNT][2]; /* allocate device info. structure */ psDevInfo = (DC_NOHW_DEVINFO *)AllocKernelMem(sizeof(*psDevInfo)); if(!psDevInfo) { eError = DC_ERROR_OUT_OF_MEMORY;/* failure */ goto ExitError; } /* initialise allocation */ memset(psDevInfo, 0, sizeof(*psDevInfo)); /* set the top-level anchor */ SetAnchorPtr((void*)psDevInfo); /* set ref count */ psDevInfo->ulRefCount = 0UL; if(OpenPVRServices(&psDevInfo->hPVRServices) != DC_OK) { eError = DC_ERROR_INIT_FAILURE; goto ExitFreeDevInfo; } if(GetLibFuncAddr (psDevInfo->hPVRServices, "PVRGetDisplayClassJTable", &pfnGetPVRJTable) != DC_OK) { eError = DC_ERROR_INIT_FAILURE; goto ExitCloseServices; } /* got the kernel services function table */ if((*pfnGetPVRJTable)(&psDevInfo->sPVRJTable) == IMG_FALSE) { eError = DC_ERROR_INIT_FAILURE; goto ExitCloseServices; } /* Setup the devinfo */ psDevInfo->psSwapChain = 0; psDevInfo->sDisplayInfo.ui32MinSwapInterval = 0UL; psDevInfo->sDisplayInfo.ui32MaxSwapInterval = 1UL; psDevInfo->sDisplayInfo.ui32MaxSwapChains = 1UL; psDevInfo->sDisplayInfo.ui32MaxSwapChainBuffers = DC_NOHW_MAX_BACKBUFFERS; strncpy(psDevInfo->sDisplayInfo.szDisplayName, DISPLAY_DEVICE_NAME, MAX_DISPLAY_NAME_SIZE); psDevInfo->ulNumFormats = 1UL; psDevInfo->ulNumDims = 1UL; #if defined(DC_NOHW_GET_BUFFER_DIMENSIONS) if (!GetBufferDimensions(&psDevInfo->asDisplayDimList[0].ui32Width, &psDevInfo->asDisplayDimList[0].ui32Height, &psDevInfo->asDisplayFormatList[0].pixelformat, &psDevInfo->asDisplayDimList[0].ui32ByteStride)) { eError = DC_ERROR_INIT_FAILURE; goto ExitCloseServices; } #else /* defined(DC_NOHW_GET_BUFFER_DIMENSIONS) */ #if defined (ENABLE_DISPLAY_MODE_TRACKING) // Set sizes to zero to force re-alloc on display mode change. psDevInfo->asDisplayFormatList[0].pixelformat = DC_NOHW_BUFFER_PIXEL_FORMAT; psDevInfo->asDisplayDimList[0].ui32Width = 0; psDevInfo->asDisplayDimList[0].ui32Height = 0; psDevInfo->asDisplayDimList[0].ui32ByteStride = 0; #else psDevInfo->asDisplayFormatList[0].pixelformat = DC_NOHW_BUFFER_PIXEL_FORMAT; psDevInfo->asDisplayDimList[0].ui32Width = DC_NOHW_BUFFER_WIDTH; psDevInfo->asDisplayDimList[0].ui32Height = DC_NOHW_BUFFER_HEIGHT; psDevInfo->asDisplayDimList[0].ui32ByteStride = DC_NOHW_BUFFER_BYTE_STRIDE; #endif #endif /* defined(DC_NOHW_GET_BUFFER_DIMENSIONS) */ psDevInfo->sSysFormat = psDevInfo->asDisplayFormatList[0]; psDevInfo->sSysDims.ui32Width = psDevInfo->asDisplayDimList[0].ui32Width; psDevInfo->sSysDims.ui32Height = psDevInfo->asDisplayDimList[0].ui32Height; psDevInfo->sSysDims.ui32ByteStride = psDevInfo->asDisplayDimList[0].ui32ByteStride; psDevInfo->ui32BufferSize = psDevInfo->sSysDims.ui32Height * psDevInfo->sSysDims.ui32ByteStride; /* setup swapchain details */ for(ulBBuf=0; ulBBufasBackBuffers[ulBBuf].sSysAddr.uiAddr = IMG_NULL; psDevInfo->asBackBuffers[ulBBuf].sCPUVAddr = IMG_NULL; #else #if defined(DC_NOHW_DISCONTIG_BUFFERS) if (AllocDiscontigMemory(psDevInfo->ui32BufferSize, &psDevInfo->asBackBuffers[ulBBuf].hMemChunk, &psDevInfo->asBackBuffers[ulBBuf].sCPUVAddr, &psDevInfo->asBackBuffers[ulBBuf].psSysAddr) != DC_OK) { eError = DC_ERROR_INIT_FAILURE; goto ExitFreeMem; } #else IMG_CPU_PHYADDR sBufferCPUPAddr; if (AllocContigMemory(psDevInfo->ui32BufferSize, &psDevInfo->asBackBuffers[ulBBuf].hMemChunk, &psDevInfo->asBackBuffers[ulBBuf].sCPUVAddr, &sBufferCPUPAddr) != DC_OK) { eError = DC_ERROR_INIT_FAILURE; goto ExitFreeMem; } psDevInfo->asBackBuffers[ulBBuf].sSysAddr = CpuPAddrToSysPAddr(sBufferCPUPAddr); #endif #endif /* #if defined(USE_BASE_VIDEO_FRAMEBUFFER) */ /* sDevVAddr not meaningful for nohw */ psDevInfo->asBackBuffers[ulBBuf].sDevVAddr.uiAddr = 0UL; psDevInfo->asBackBuffers[ulBBuf].hSwapChain = 0; psDevInfo->asBackBuffers[ulBBuf].psSyncData = 0; psDevInfo->asBackBuffers[ulBBuf].psNext = 0; } /* setup the DC Jtable so SRVKM can call into this driver */ psDevInfo->sDCJTable.ui32TableSize = sizeof(PVRSRV_DC_SRV2DISP_KMJTABLE); psDevInfo->sDCJTable.pfnOpenDCDevice = OpenDCDevice; psDevInfo->sDCJTable.pfnCloseDCDevice = CloseDCDevice; psDevInfo->sDCJTable.pfnEnumDCFormats = EnumDCFormats; psDevInfo->sDCJTable.pfnEnumDCDims = EnumDCDims; psDevInfo->sDCJTable.pfnGetDCSystemBuffer = GetDCSystemBuffer; psDevInfo->sDCJTable.pfnGetDCInfo = GetDCInfo; psDevInfo->sDCJTable.pfnGetBufferAddr = GetDCBufferAddr; psDevInfo->sDCJTable.pfnCreateDCSwapChain = CreateDCSwapChain; psDevInfo->sDCJTable.pfnDestroyDCSwapChain = DestroyDCSwapChain; psDevInfo->sDCJTable.pfnSetDCDstRect = SetDCDstRect; psDevInfo->sDCJTable.pfnSetDCSrcRect = SetDCSrcRect; psDevInfo->sDCJTable.pfnSetDCDstColourKey = SetDCDstColourKey; psDevInfo->sDCJTable.pfnSetDCSrcColourKey = SetDCSrcColourKey; psDevInfo->sDCJTable.pfnGetDCBuffers = GetDCBuffers; psDevInfo->sDCJTable.pfnSwapToDCBuffer = SwapToDCBuffer; psDevInfo->sDCJTable.pfnSetDCState = IMG_NULL; /* register device with services and retrieve device index */ if(psDevInfo->sPVRJTable.pfnPVRSRVRegisterDCDevice (&psDevInfo->sDCJTable, &psDevInfo->uiDeviceID ) != PVRSRV_OK) { eError = DC_ERROR_DEVICE_REGISTER_FAILED; goto ExitFreeMem; } /* setup private command processing function table */ pfnCmdProcList[DC_FLIP_COMMAND] = ProcessFlip; /* and associated sync count(s) */ aui32SyncCountList[DC_FLIP_COMMAND][0] = 0UL;/* no writes */ aui32SyncCountList[DC_FLIP_COMMAND][1] = 2UL;/* 2 reads: To / From */ /* register private command processing functions with the Command Queue Manager and setup the general command complete function in the devinfo */ if (psDevInfo->sPVRJTable.pfnPVRSRVRegisterCmdProcList(psDevInfo->uiDeviceID, &pfnCmdProcList[0], aui32SyncCountList, DC_NOHW_COMMAND_COUNT) != PVRSRV_OK) { eError = DC_ERROR_CANT_REGISTER_CALLBACK; goto ExitRemoveDevice; } } /* increment the ref count */ psDevInfo->ulRefCount++; /* return success */ return (DC_OK); ExitRemoveDevice: (IMG_VOID) psDevInfo->sPVRJTable.pfnPVRSRVRemoveDCDevice(psDevInfo->uiDeviceID); ExitFreeMem: ulNBBuf = ulBBuf; for(ulBBuf=0; ulBBufui32BufferSize, psDevInfo->asBackBuffers[ulBBuf].hMemChunk, psDevInfo->asBackBuffers[ulBBuf].sCPUVAddr, psDevInfo->asBackBuffers[ulBBuf].psSysAddr); #else #if !defined(USE_BASE_VIDEO_FRAMEBUFFER) FreeContigMemory(psDevInfo->ui32BufferSize, psDevInfo->asBackBuffers[ulBBuf].hMemChunk, psDevInfo->asBackBuffers[ulBBuf].sCPUVAddr, SysPAddrToCpuPAddr(psDevInfo->asBackBuffers[ulBBuf].sSysAddr)); #endif /* #if defined(USE_BASE_VIDEO_FRAMEBUFFER) */ #endif /* #if defined(DC_NOHW_DISCONTIG_BUFFERS) */ } ExitCloseServices: (void)ClosePVRServices(psDevInfo->hPVRServices); ExitFreeDevInfo: FreeKernelMem(psDevInfo); SetAnchorPtr(0); ExitError: return eError; } /* * Deinit */ DC_ERROR Deinit(void) { DC_NOHW_DEVINFO *psDevInfo, *psDevFirst; #if !defined(USE_BASE_VIDEO_FRAMEBUFFER) unsigned long i; #endif psDevFirst = GetAnchorPtr(); psDevInfo = psDevFirst; /* check DevInfo has been setup */ if (psDevInfo == 0) { return (DC_ERROR_GENERIC);/* failure */ } /* decrement ref count */ psDevInfo->ulRefCount--; if (psDevInfo->ulRefCount == 0UL) { /* all references gone - de-init device information */ PVRSRV_DC_DISP2SRV_KMJTABLE *psJTable = &psDevInfo->sPVRJTable; /* Remove display class device from kernel services device register */ if (psJTable->pfnPVRSRVRemoveDCDevice((IMG_UINT32)psDevInfo->uiDeviceID) != PVRSRV_OK) { return (DC_ERROR_GENERIC);/* failure */ } if (psDevInfo->sPVRJTable.pfnPVRSRVRemoveCmdProcList(psDevInfo->uiDeviceID, DC_NOHW_COMMAND_COUNT) != PVRSRV_OK) { return (DC_ERROR_GENERIC);/* failure */ } if (ClosePVRServices(psDevInfo->hPVRServices) != DC_OK) { psDevInfo->hPVRServices = 0; return (DC_ERROR_GENERIC);/* failure */ } #if !defined(USE_BASE_VIDEO_FRAMEBUFFER) for(i=0; iasBackBuffers[i].sCPUVAddr) { #if defined(DC_NOHW_DISCONTIG_BUFFERS) FreeDiscontigMemory(psDevInfo->ui32BufferSize, psDevInfo->asBackBuffers[i].hMemChunk, psDevInfo->asBackBuffers[i].sCPUVAddr, psDevInfo->asBackBuffers[i].psSysAddr); #else FreeContigMemory(psDevInfo->ui32BufferSize, psDevInfo->asBackBuffers[i].hMemChunk, psDevInfo->asBackBuffers[i].sCPUVAddr, SysPAddrToCpuPAddr(psDevInfo->asBackBuffers[i].sSysAddr)); #endif } } #endif /* #if !defined(USE_BASE_VIDEO_FRAMEBUFFER) */ /* de-allocate data structure */ FreeKernelMem(psDevInfo); } #if defined (ENABLE_DISPLAY_MODE_TRACKING) CloseMiniport(); #endif /* clear the top-level anchor */ SetAnchorPtr(0); /* return success */ return (DC_OK); } /****************************************************************************** End of file (dc_nohw_displayclass.c) ******************************************************************************/