1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/staging/cdv/pvr/services4/srvkm/env/linux/mutex.h b/drivers/staging/cdv/pvr/services4/srvkm/env/linux/mutex.h
new file mode 100644
index 000000000000..b2c744ae68ba
--- /dev/null
+++ b/drivers/staging/cdv/pvr/services4/srvkm/env/linux/mutex.h
@@ -0,0 +1,85 @@
+/**********************************************************************
+ *
+ * Copyright (C) Imagination Technologies Ltd. All rights reserved.
+ * 
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ * 
+ * This program is distributed in the hope it will be useful but, except 
+ * as otherwise stated in writing, without any warranty; without even the 
+ * implied warranty of merchantability or fitness for a particular purpose. 
+ * See the GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ * 
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * Imagination Technologies Ltd. <gpl-support@imgtec.com>
+ * Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK 
+ *
+ ******************************************************************************/
+
+#ifndef __INCLUDED_LINUX_MUTEX_H_
+#define __INCLUDED_LINUX_MUTEX_H_
+
+#include <linux/version.h>
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15))
+#include <linux/mutex.h>
+#else
+#include <asm/semaphore.h>
+#endif
+
+
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15))
+
+typedef struct mutex PVRSRV_LINUX_MUTEX;
+
+#else 
+
+
+typedef struct {
+    struct semaphore sSemaphore;
+    
+    atomic_t Count;
+}PVRSRV_LINUX_MUTEX;
+
+#endif
+
+
+static inline IMG_VOID  LinuxInitMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) {
+    mutex_init(psPVRSRVMutex);
+}
+
+static inline IMG_VOID LinuxLockMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) {
+    mutex_lock(psPVRSRVMutex);
+}
+
+static inline PVRSRV_ERROR LinuxLockMutexInterruptible(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) {
+	if(mutex_lock_interruptible(psPVRSRVMutex) == -EINTR) {
+		return PVRSRV_ERROR_MUTEX_INTERRUPTIBLE_ERROR; 
+	} else {
+		return PVRSRV_OK;
+	}
+}
+
+static inline IMG_INT32 LinuxTryLockMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) {
+	return mutex_trylock(psPVRSRVMutex);
+}
+
+static inline IMG_VOID LinuxUnLockMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) {
+	mutex_unlock(psPVRSRVMutex);
+}
+
+static inline  IMG_BOOL LinuxIsLockedMutex(PVRSRV_LINUX_MUTEX *psPVRSRVMutex) {
+	return (mutex_is_locked(psPVRSRVMutex)) ? IMG_TRUE : IMG_FALSE;
+}
+
+#endif 
+