first commit for chrg

2025-08-16 22:58:22 +08:00
commit 52a3ed5862
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+/*
+ * FreeModbus Libary: RT-Thread Port
+ * Copyright (C) 2013 Armink <armink.ztl@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * File: $Id: portevent.c,v 1.60 2013/08/13 15:07:05 Armink $
+ */
+
+/* ----------------------- Modbus includes ----------------------------------*/
+#include "mb.h"
+#include "mbport.h"
+
+/* ----------------------- Variables ----------------------------------------*/
+static struct rt_event     xSlaveOsEvent;
+/* ----------------------- Start implementation -----------------------------*/
+BOOL
+xMBPortEventInit( void )
+{
+    rt_event_init(&xSlaveOsEvent,"slave event",RT_IPC_FLAG_PRIO);
+    return TRUE;
+}
+
+BOOL
+xMBPortEventPost( eMBEventType eEvent )
+{
+    rt_event_send(&xSlaveOsEvent, eEvent);
+    return TRUE;
+}
+
+BOOL
+xMBPortEventGet( eMBEventType * eEvent )
+{
+    rt_uint32_t recvedEvent;
+    /* waiting forever OS event */
+    rt_event_recv(&xSlaveOsEvent,
+            EV_READY | EV_FRAME_RECEIVED | EV_EXECUTE | EV_FRAME_SENT,
+            RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR, RT_WAITING_FOREVER,
+            &recvedEvent);
+    switch (recvedEvent)
+    {
+    case EV_READY:
+        *eEvent = EV_READY;
+        break;
+    case EV_FRAME_RECEIVED:
+        *eEvent = EV_FRAME_RECEIVED;
+        break;
+    case EV_EXECUTE:
+        *eEvent = EV_EXECUTE;
+        break;
+    case EV_FRAME_SENT:
+        *eEvent = EV_FRAME_SENT;
+        break;
+    }
+    return TRUE;
+}