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

sdk/osal/ohos/condv.c

@@ -0,0 +1,105 @@
+#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/semaphore.h"
+#include "osal/mutex.h"
+#include "osal/condv.h"
+
+
+#define CONDV_MAGIC (0x3a8d7c1d)
+
+int32 os_condv_init(os_condv_t *cond)
+{
+    UINT32 hdl = 0;
+    ASSERT(cond);
+
+    if(cond->magic == CONDV_MAGIC){
+        os_printf(KERN_WARNING"condv repeat initialization ????\r\n");
+    }
+
+    if (LOS_OK == LOS_SemCreate(0, &hdl)) {
+        cond->sema = (void *)(hdl + 1);
+        cond->magic = CONDV_MAGIC;
+        atomic_set(&cond->waitings, 0);
+    }
+    return (cond->sema ? RET_OK : RET_ERR);
+}
+
+int32 os_condv_broadcast(os_condv_t *cond)
+{
+    uint32 i;
+    UINT32 hdl  = (UINT32)cond->sema;
+    uint32 wait = atomic_read(&cond->waitings);
+
+    ASSERT(cond && cond->magic == CONDV_MAGIC);
+    while (wait > 0) {
+        if (wait == atomic_cmpxchg(&cond->waitings, wait, 0)) {
+            for (i = 0; i < wait; i++) {
+                LOS_SemPost(hdl - 1);
+            }
+        }
+        wait = atomic_read(&cond->waitings);
+    }
+
+    return RET_OK;
+}
+
+int32 os_condv_signal(os_condv_t *cond)
+{
+    ASSERT(cond && cond->magic == CONDV_MAGIC);
+    UINT32 hdl  = (UINT32)cond->sema;
+    uint32 wait = atomic_read(&cond->waitings);
+    while (wait > 0) {
+        if (wait == atomic_cmpxchg(&cond->waitings, wait, wait - 1)) {
+            LOS_SemPost(hdl - 1);
+            break;
+        }
+        wait = atomic_read(&cond->waitings);
+    }
+    return RET_OK;
+}
+
+int32 os_condv_del(os_condv_t *cond)
+{
+    ASSERT(cond && cond->magic == CONDV_MAGIC);
+    UINT32 hdl  = (UINT32)cond->sema;
+    LOS_SemDelete(hdl - 1);
+    cond->sema = NULL;
+    cond->magic = 0;
+    return RET_OK;
+}
+
+int32 os_condv_wait(os_condv_t *cond, os_mutex_t *mutex, uint32 tmo_ms)
+{
+    ASSERT(cond && cond->magic == CONDV_MAGIC);
+    int32 ret;
+    UINT32 hdl  = (UINT32)cond->sema;
+
+    atomic_inc(&cond->waitings);
+    os_mutex_unlock(mutex);
+    ret = LOS_SemPend(hdl - 1, LOS_MS2Tick(tmo_ms));
+    os_mutex_lock(mutex, osWaitForever);
+    atomic_dec(&cond->waitings);
+    return ret ? -ETIMEDOUT : RET_OK;
+}
+
+#endif
+