diff options
Diffstat (limited to 'pvr-source/services4/srvkm/env/linux/event.c')
| -rwxr-xr-x | pvr-source/services4/srvkm/env/linux/event.c | 414 |
1 files changed, 0 insertions, 414 deletions
diff --git a/pvr-source/services4/srvkm/env/linux/event.c b/pvr-source/services4/srvkm/env/linux/event.c deleted file mode 100755 index c335640..0000000 --- a/pvr-source/services4/srvkm/env/linux/event.c +++ /dev/null @@ -1,414 +0,0 @@ -/*************************************************************************/ /*! -@Title Event Object -@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. -*/ /**************************************************************************/ - -#include <linux/version.h> - -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38)) -#ifndef AUTOCONF_INCLUDED -#include <linux/config.h> -#endif -#endif - -#include <asm/io.h> -#include <asm/page.h> -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)) -#include <asm/system.h> -#endif -#include <linux/mm.h> -#include <linux/slab.h> -#include <linux/vmalloc.h> -#include <linux/delay.h> -#include <linux/pci.h> - -#include <linux/string.h> -#include <linux/sched.h> -#include <linux/interrupt.h> -#include <asm/hardirq.h> -#include <linux/spinlock.h> -#include <linux/timer.h> -#include <linux/capability.h> -#include <linux/sched.h> -#include <asm/uaccess.h> - -#include "img_types.h" -#include "services_headers.h" -#include "mm.h" -#include "pvrmmap.h" -#include "mmap.h" -#include "env_data.h" -#include "proc.h" -#include "mutex.h" -#include "lock.h" -#include "event.h" - -typedef struct PVRSRV_LINUX_EVENT_OBJECT_LIST_TAG -{ - rwlock_t sLock; - struct list_head sList; - -} PVRSRV_LINUX_EVENT_OBJECT_LIST; - - -typedef struct PVRSRV_LINUX_EVENT_OBJECT_TAG -{ - atomic_t sTimeStamp; - IMG_UINT32 ui32TimeStampPrevious; -#if defined(DEBUG) - IMG_UINT ui32Stats; -#endif - wait_queue_head_t sWait; - struct list_head sList; - IMG_HANDLE hResItem; - PVRSRV_LINUX_EVENT_OBJECT_LIST *psLinuxEventObjectList; -} PVRSRV_LINUX_EVENT_OBJECT; - -/*! -****************************************************************************** - - @Function LinuxEventObjectListCreate - - @Description - - Linux wait object list creation - - @Output hOSEventKM : Pointer to the event object list handle - - @Return PVRSRV_ERROR : Error code - -******************************************************************************/ -PVRSRV_ERROR LinuxEventObjectListCreate(IMG_HANDLE *phEventObjectList) -{ - PVRSRV_LINUX_EVENT_OBJECT_LIST *psEventObjectList; - - if(OSAllocMem(PVRSRV_OS_NON_PAGEABLE_HEAP, sizeof(PVRSRV_LINUX_EVENT_OBJECT_LIST), - (IMG_VOID **)&psEventObjectList, IMG_NULL, - "Linux Event Object List") != PVRSRV_OK) - { - PVR_DPF((PVR_DBG_ERROR, "LinuxEventObjectCreate: failed to allocate memory for event list")); - return PVRSRV_ERROR_OUT_OF_MEMORY; - } - - INIT_LIST_HEAD(&psEventObjectList->sList); - - rwlock_init(&psEventObjectList->sLock); - - *phEventObjectList = (IMG_HANDLE *) psEventObjectList; - - return PVRSRV_OK; -} - -/*! -****************************************************************************** - - @Function LinuxEventObjectListDestroy - - @Description - - Linux wait object list destruction - - @Input hOSEventKM : Event object list handle - - @Return PVRSRV_ERROR : Error code - -******************************************************************************/ -PVRSRV_ERROR LinuxEventObjectListDestroy(IMG_HANDLE hEventObjectList) -{ - - PVRSRV_LINUX_EVENT_OBJECT_LIST *psEventObjectList = (PVRSRV_LINUX_EVENT_OBJECT_LIST *) hEventObjectList ; - - if(psEventObjectList) - { - IMG_BOOL bListEmpty; - - read_lock(&psEventObjectList->sLock); - bListEmpty = list_empty(&psEventObjectList->sList); - read_unlock(&psEventObjectList->sLock); - - if (!bListEmpty) - { - PVR_DPF((PVR_DBG_ERROR, "LinuxEventObjectListDestroy: Event List is not empty")); - return PVRSRV_ERROR_UNABLE_TO_DESTROY_EVENT; - } - - OSFreeMem(PVRSRV_OS_NON_PAGEABLE_HEAP, sizeof(PVRSRV_LINUX_EVENT_OBJECT_LIST), psEventObjectList, IMG_NULL); - /*not nulling pointer, copy on stack*/ - } - - return PVRSRV_OK; -} - - -/*! -****************************************************************************** - - @Function LinuxEventObjectDelete - - @Description - - Linux wait object removal - - @Input hOSEventObjectList : Event object list handle - @Input hOSEventObject : Event object handle - @Input bResManCallback : Called from the resman - - @Return PVRSRV_ERROR : Error code - -******************************************************************************/ -PVRSRV_ERROR LinuxEventObjectDelete(IMG_HANDLE hOSEventObjectList, IMG_HANDLE hOSEventObject) -{ - if(hOSEventObjectList) - { - if(hOSEventObject) - { - PVRSRV_LINUX_EVENT_OBJECT *psLinuxEventObject = (PVRSRV_LINUX_EVENT_OBJECT *)hOSEventObject; -#if defined(DEBUG) - PVR_DPF((PVR_DBG_MESSAGE, "LinuxEventObjectListDelete: Event object waits: %u", psLinuxEventObject->ui32Stats)); -#endif - if(ResManFreeResByPtr(psLinuxEventObject->hResItem, CLEANUP_WITH_POLL) != PVRSRV_OK) - { - return PVRSRV_ERROR_UNABLE_TO_DESTROY_EVENT; - } - - return PVRSRV_OK; - } - } - return PVRSRV_ERROR_UNABLE_TO_DESTROY_EVENT; - -} - -/*! -****************************************************************************** - - @Function LinuxEventObjectDeleteCallback - - @Description - - Linux wait object removal - - @Input hOSEventObject : Event object handle - - @Return PVRSRV_ERROR : Error code - -******************************************************************************/ -static PVRSRV_ERROR LinuxEventObjectDeleteCallback(IMG_PVOID pvParam, IMG_UINT32 ui32Param, IMG_BOOL bForceCleanup) -{ - PVRSRV_LINUX_EVENT_OBJECT *psLinuxEventObject = pvParam; - PVRSRV_LINUX_EVENT_OBJECT_LIST *psLinuxEventObjectList = psLinuxEventObject->psLinuxEventObjectList; - unsigned long ulLockFlags; - - PVR_UNREFERENCED_PARAMETER(ui32Param); - PVR_UNREFERENCED_PARAMETER(bForceCleanup); - - write_lock_irqsave(&psLinuxEventObjectList->sLock, ulLockFlags); - list_del(&psLinuxEventObject->sList); - write_unlock_irqrestore(&psLinuxEventObjectList->sLock, ulLockFlags); - -#if defined(DEBUG) - PVR_DPF((PVR_DBG_MESSAGE, "LinuxEventObjectDeleteCallback: Event object waits: %u", psLinuxEventObject->ui32Stats)); -#endif - - OSFreeMem(PVRSRV_OS_NON_PAGEABLE_HEAP, sizeof(PVRSRV_LINUX_EVENT_OBJECT), psLinuxEventObject, IMG_NULL); - /*not nulling pointer, copy on stack*/ - - return PVRSRV_OK; -} -/*! -****************************************************************************** - - @Function LinuxEventObjectAdd - - @Description - - Linux wait object addition - - @Input hOSEventObjectList : Event object list handle - @Output phOSEventObject : Pointer to the event object handle - - @Return PVRSRV_ERROR : Error code - -******************************************************************************/ -PVRSRV_ERROR LinuxEventObjectAdd(IMG_HANDLE hOSEventObjectList, IMG_HANDLE *phOSEventObject) - { - PVRSRV_LINUX_EVENT_OBJECT *psLinuxEventObject; - PVRSRV_LINUX_EVENT_OBJECT_LIST *psLinuxEventObjectList = (PVRSRV_LINUX_EVENT_OBJECT_LIST*)hOSEventObjectList; - IMG_UINT32 ui32PID = OSGetCurrentProcessIDKM(); - PVRSRV_PER_PROCESS_DATA *psPerProc; - unsigned long ulLockFlags; - - psPerProc = PVRSRVPerProcessData(ui32PID); - if (psPerProc == IMG_NULL) - { - PVR_DPF((PVR_DBG_ERROR, "LinuxEventObjectAdd: Couldn't find per-process data")); - return PVRSRV_ERROR_OUT_OF_MEMORY; - } - - /* allocate completion variable */ - if(OSAllocMem(PVRSRV_OS_NON_PAGEABLE_HEAP, sizeof(PVRSRV_LINUX_EVENT_OBJECT), - (IMG_VOID **)&psLinuxEventObject, IMG_NULL, - "Linux Event Object") != PVRSRV_OK) - { - PVR_DPF((PVR_DBG_ERROR, "LinuxEventObjectAdd: failed to allocate memory ")); - return PVRSRV_ERROR_OUT_OF_MEMORY; - } - - INIT_LIST_HEAD(&psLinuxEventObject->sList); - - atomic_set(&psLinuxEventObject->sTimeStamp, 0); - psLinuxEventObject->ui32TimeStampPrevious = 0; - -#if defined(DEBUG) - psLinuxEventObject->ui32Stats = 0; -#endif - init_waitqueue_head(&psLinuxEventObject->sWait); - - psLinuxEventObject->psLinuxEventObjectList = psLinuxEventObjectList; - - psLinuxEventObject->hResItem = ResManRegisterRes(psPerProc->hResManContext, - RESMAN_TYPE_EVENT_OBJECT, - psLinuxEventObject, - 0, - &LinuxEventObjectDeleteCallback); - - write_lock_irqsave(&psLinuxEventObjectList->sLock, ulLockFlags); - list_add(&psLinuxEventObject->sList, &psLinuxEventObjectList->sList); - write_unlock_irqrestore(&psLinuxEventObjectList->sLock, ulLockFlags); - - *phOSEventObject = psLinuxEventObject; - - return PVRSRV_OK; -} - -/*! -****************************************************************************** - - @Function LinuxEventObjectSignal - - @Description - - Linux wait object signaling function - - @Input hOSEventObjectList : Event object list handle - - @Return PVRSRV_ERROR : Error code - -******************************************************************************/ -PVRSRV_ERROR LinuxEventObjectSignal(IMG_HANDLE hOSEventObjectList) -{ - PVRSRV_LINUX_EVENT_OBJECT *psLinuxEventObject; - PVRSRV_LINUX_EVENT_OBJECT_LIST *psLinuxEventObjectList = (PVRSRV_LINUX_EVENT_OBJECT_LIST*)hOSEventObjectList; - struct list_head *psListEntry, *psList; - - psList = &psLinuxEventObjectList->sList; - - /* - * We don't take the write lock in interrupt context, so we don't - * need to use read_lock_irqsave. - */ - read_lock(&psLinuxEventObjectList->sLock); - list_for_each(psListEntry, psList) - { - - psLinuxEventObject = (PVRSRV_LINUX_EVENT_OBJECT *)list_entry(psListEntry, PVRSRV_LINUX_EVENT_OBJECT, sList); - - atomic_inc(&psLinuxEventObject->sTimeStamp); - wake_up_interruptible(&psLinuxEventObject->sWait); - } - read_unlock(&psLinuxEventObjectList->sLock); - - return PVRSRV_OK; - -} - -/*! -****************************************************************************** - - @Function LinuxEventObjectWait - - @Description - - Linux wait object routine - - @Input hOSEventObject : Event object handle - - @Input ui32MSTimeout : Time out value in msec - - @Return PVRSRV_ERROR : Error code - -******************************************************************************/ -PVRSRV_ERROR LinuxEventObjectWait(IMG_HANDLE hOSEventObject, IMG_UINT32 ui32MSTimeout) -{ - IMG_UINT32 ui32TimeStamp; - DEFINE_WAIT(sWait); - - PVRSRV_LINUX_EVENT_OBJECT *psLinuxEventObject = (PVRSRV_LINUX_EVENT_OBJECT *) hOSEventObject; - - IMG_UINT32 ui32TimeOutJiffies = msecs_to_jiffies(ui32MSTimeout); - - do - { - prepare_to_wait(&psLinuxEventObject->sWait, &sWait, TASK_INTERRUPTIBLE); - ui32TimeStamp = (IMG_UINT32)atomic_read(&psLinuxEventObject->sTimeStamp); - - if(psLinuxEventObject->ui32TimeStampPrevious != ui32TimeStamp) - { - break; - } - - LinuxUnLockMutex(&gPVRSRVLock); - - ui32TimeOutJiffies = (IMG_UINT32)schedule_timeout((IMG_INT32)ui32TimeOutJiffies); - - LinuxLockMutexNested(&gPVRSRVLock, PVRSRV_LOCK_CLASS_BRIDGE); -#if defined(DEBUG) - psLinuxEventObject->ui32Stats++; -#endif - - - } while (ui32TimeOutJiffies); - - finish_wait(&psLinuxEventObject->sWait, &sWait); - - psLinuxEventObject->ui32TimeStampPrevious = ui32TimeStamp; - - return ui32TimeOutJiffies ? PVRSRV_OK : PVRSRV_ERROR_TIMEOUT; - -} - |