| /******************************************************************************* |
| @File |
| @Title Server bridge for rgxsignals |
| @Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved |
| @Description Implements the server side of the bridge for rgxsignals |
| @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. |
| *******************************************************************************/ |
| |
| #include <linux/uaccess.h> |
| |
| #include "img_defs.h" |
| |
| #include "rgxsignals.h" |
| |
| #include "common_rgxsignals_bridge.h" |
| |
| #include "allocmem.h" |
| #include "pvr_debug.h" |
| #include "connection_server.h" |
| #include "pvr_bridge.h" |
| #if defined(SUPPORT_RGX) |
| #include "rgx_bridge.h" |
| #endif |
| #include "srvcore.h" |
| #include "handle.h" |
| |
| #include <linux/slab.h> |
| |
| #include "rgx_bvnc_defs_km.h" |
| |
| /* *************************************************************************** |
| * Server-side bridge entry points |
| */ |
| |
| static IMG_INT |
| PVRSRVBridgeRGXNotifySignalUpdate(IMG_UINT32 ui32DispatchTableEntry, |
| PVRSRV_BRIDGE_IN_RGXNOTIFYSIGNALUPDATE * |
| psRGXNotifySignalUpdateIN, |
| PVRSRV_BRIDGE_OUT_RGXNOTIFYSIGNALUPDATE * |
| psRGXNotifySignalUpdateOUT, |
| CONNECTION_DATA * psConnection) |
| { |
| IMG_HANDLE hPrivData = psRGXNotifySignalUpdateIN->hPrivData; |
| IMG_HANDLE hPrivDataInt = NULL; |
| |
| { |
| PVRSRV_DEVICE_NODE *psDeviceNode = OSGetDevData(psConnection); |
| |
| /* Check that device supports the required feature */ |
| if ((psDeviceNode->pfnCheckDeviceFeature) && |
| !psDeviceNode->pfnCheckDeviceFeature(psDeviceNode, |
| RGX_FEATURE_SIGNAL_SNOOPING_BIT_MASK)) |
| { |
| psRGXNotifySignalUpdateOUT->eError = |
| PVRSRV_ERROR_NOT_SUPPORTED; |
| |
| goto RGXNotifySignalUpdate_exit; |
| } |
| } |
| |
| /* Lock over handle lookup. */ |
| LockHandle(psConnection->psHandleBase); |
| |
| /* Look up the address from the handle */ |
| psRGXNotifySignalUpdateOUT->eError = |
| PVRSRVLookupHandleUnlocked(psConnection->psHandleBase, |
| (void **)&hPrivDataInt, |
| hPrivData, |
| PVRSRV_HANDLE_TYPE_DEV_PRIV_DATA, |
| IMG_TRUE); |
| if (unlikely(psRGXNotifySignalUpdateOUT->eError != PVRSRV_OK)) |
| { |
| UnlockHandle(psConnection->psHandleBase); |
| goto RGXNotifySignalUpdate_exit; |
| } |
| /* Release now we have looked up handles. */ |
| UnlockHandle(psConnection->psHandleBase); |
| |
| psRGXNotifySignalUpdateOUT->eError = |
| PVRSRVRGXNotifySignalUpdateKM(psConnection, |
| OSGetDevData(psConnection), |
| hPrivDataInt, |
| psRGXNotifySignalUpdateIN-> |
| sDevSignalAddress); |
| |
| RGXNotifySignalUpdate_exit: |
| |
| /* Lock over handle lookup cleanup. */ |
| LockHandle(psConnection->psHandleBase); |
| |
| /* Unreference the previously looked up handle */ |
| if (hPrivDataInt) |
| { |
| PVRSRVReleaseHandleUnlocked(psConnection->psHandleBase, |
| hPrivData, |
| PVRSRV_HANDLE_TYPE_DEV_PRIV_DATA); |
| } |
| /* Release now we have cleaned up look up handles. */ |
| UnlockHandle(psConnection->psHandleBase); |
| |
| return 0; |
| } |
| |
| /* *************************************************************************** |
| * Server bridge dispatch related glue |
| */ |
| |
| static IMG_BOOL bUseLock = IMG_TRUE; |
| |
| PVRSRV_ERROR InitRGXSIGNALSBridge(void); |
| PVRSRV_ERROR DeinitRGXSIGNALSBridge(void); |
| |
| /* |
| * Register all RGXSIGNALS functions with services |
| */ |
| PVRSRV_ERROR InitRGXSIGNALSBridge(void) |
| { |
| |
| SetDispatchTableEntry(PVRSRV_BRIDGE_RGXSIGNALS, |
| PVRSRV_BRIDGE_RGXSIGNALS_RGXNOTIFYSIGNALUPDATE, |
| PVRSRVBridgeRGXNotifySignalUpdate, NULL, |
| bUseLock); |
| |
| return PVRSRV_OK; |
| } |
| |
| /* |
| * Unregister all rgxsignals functions with services |
| */ |
| PVRSRV_ERROR DeinitRGXSIGNALSBridge(void) |
| { |
| |
| UnsetDispatchTableEntry(PVRSRV_BRIDGE_RGXSIGNALS, |
| PVRSRV_BRIDGE_RGXSIGNALS_RGXNOTIFYSIGNALUPDATE); |
| |
| return PVRSRV_OK; |
| } |