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Diffstat (limited to 'pvr-source/services4/srvkm/env/linux/mutex.c')
| -rwxr-xr-x | pvr-source/services4/srvkm/env/linux/mutex.c | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/pvr-source/services4/srvkm/env/linux/mutex.c b/pvr-source/services4/srvkm/env/linux/mutex.c deleted file mode 100755 index a7e6c12..0000000 --- a/pvr-source/services4/srvkm/env/linux/mutex.c +++ /dev/null @@ -1,163 +0,0 @@ -/*************************************************************************/ /*! -@Title Linux mutex interface -@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> -#include <linux/errno.h> -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15)) -#include <linux/mutex.h> -#else -#include <asm/semaphore.h> -#endif -#include <linux/module.h> - -#include <img_defs.h> -#include <services.h> - -#include "mutex.h" - - -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15)) - -IMG_VOID LinuxInitMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) -{ - mutex_init(psPVRSRVMutex); -} - -IMG_VOID LinuxLockMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) -{ - mutex_lock(psPVRSRVMutex); -} - -IMG_VOID LinuxLockMutexNested(PVRSRV_LINUX_MUTEX *psPVRSRVMutex, unsigned int uiLockClass) -{ - mutex_lock_nested(psPVRSRVMutex, uiLockClass); -} - -PVRSRV_ERROR LinuxLockMutexInterruptible(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) -{ - if(mutex_lock_interruptible(psPVRSRVMutex) == -EINTR) - { - return PVRSRV_ERROR_MUTEX_INTERRUPTIBLE_ERROR; - } - else - { - return PVRSRV_OK; - } -} - -IMG_INT32 LinuxTryLockMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) -{ - return mutex_trylock(psPVRSRVMutex); -} - -IMG_VOID LinuxUnLockMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) -{ - mutex_unlock(psPVRSRVMutex); -} - -IMG_BOOL LinuxIsLockedMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) -{ - return (mutex_is_locked(psPVRSRVMutex)) ? IMG_TRUE : IMG_FALSE; -} - - -#else /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15)) */ - - -IMG_VOID LinuxInitMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) -{ - init_MUTEX(&psPVRSRVMutex->sSemaphore); - atomic_set(&psPVRSRVMutex->Count, 0); -} - -IMG_VOID LinuxLockMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) -{ - down(&psPVRSRVMutex->sSemaphore); - atomic_dec(&psPVRSRVMutex->Count); -} - -IMG_VOID LinuxLockMutexNested(PVRSRV_LINUX_MUTEX *psPVRSRVMutex, unsigned int uiLockClass) -{ - LinuxLockMutex(psPVRSRVMutex); -} - -PVRSRV_ERROR LinuxLockMutexInterruptible(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) -{ - if(down_interruptible(&psPVRSRVMutex->sSemaphore) == -EINTR) - { - /* The process was sent a signal while waiting for the semaphore - * (e.g. a kill signal from userspace) - */ - return PVRSRV_ERROR_MUTEX_INTERRUPTIBLE_ERROR; - }else{ - atomic_dec(&psPVRSRVMutex->Count); - return PVRSRV_OK; - } -} - -IMG_INT32 LinuxTryLockMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) -{ - IMG_INT32 Status = down_trylock(&psPVRSRVMutex->sSemaphore); - if(Status == 0) - { - atomic_dec(&psPVRSRVMutex->Count); - } - - return Status; -} - -IMG_VOID LinuxUnLockMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) -{ - atomic_inc(&psPVRSRVMutex->Count); - up(&psPVRSRVMutex->sSemaphore); -} - -IMG_BOOL LinuxIsLockedMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) -{ - IMG_INT32 iCount; - - iCount = atomic_read(&psPVRSRVMutex->Count); - - return (IMG_BOOL)iCount; -} - -#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15)) */ - |