Initial commit: TXW82x FPV v2.7.0.7-42229 SDK + project sources

sdk/osal/ohos/mutex.c

@@ -0,0 +1,67 @@
+#include "typesdef.h"
+#include "errno.h"
+#include "list.h"
+#include "osal/event.h"
+
+#ifdef OHOS
+#include "los_event.h"
+#include "los_membox.h"
+#include "los_memory.h"
+#include "los_interrupt.h"
+#include "los_mux.h"
+#include "los_queue.h"
+#include "los_sem.h"
+#include "los_swtmr.h"
+#include "los_task.h"
+#include "los_timer.h"
+#include "los_debug.h"
+#if (LOSCFG_MUTEX_CREATE_TRACE == 1)
+#include "los_arch.h"
+#endif
+#include "osal/string.h"
+#include "osal/mutex.h"
+
+#define MUTEX_MAGIC (0xa8b4c2d5)
+
+int32 os_mutex_init(os_mutex_t *mutex)
+{
+    UINT32 hdl = 0;
+    
+    if(mutex->magic == MUTEX_MAGIC){
+        os_printf(KERN_WARNING"mutex repeat initialization ????\r\n");
+    }
+
+    if (LOS_OK == LOS_MuxCreate(&hdl)) {
+        mutex->hdl = (void *)(hdl+1);
+        mutex->magic = MUTEX_MAGIC;
+    }
+    return (mutex->hdl ? RET_OK : RET_ERR);
+}
+
+int32 os_mutex_lock(os_mutex_t *mutex, int32 tmo)
+{
+    ASSERT(mutex && mutex->hdl);
+    UINT32 hdl = (UINT32)mutex->hdl;
+    return LOS_MuxPend(hdl - 1, LOS_MS2Tick(tmo), (uint32_t)RETURN_ADDR());
+}
+
+int32 os_mutex_unlock(os_mutex_t *mutex)
+{
+    ASSERT(mutex && mutex->hdl);
+    UINT32 hdl = (UINT32)mutex->hdl;
+    return LOS_MuxPost(hdl - 1);
+}
+
+int32 os_mutex_del(os_mutex_t *mutex)
+{
+    ASSERT(mutex && mutex->hdl);
+    int32 ret = 0;
+    UINT32 hdl = (UINT32)mutex->hdl;
+    ret = LOS_MuxDelete(hdl - 1);
+    mutex->hdl = NULL;
+    mutex->magic = 0;
+    return ret;
+}
+
+#endif
+