support PLC bus and opcua API

2022-01-30 22:51:00 +08:00
parent d5ff9259a0
commit 5346d8401f
19 changed files with 913 additions and 29 deletions
@@ -1,3 +1,3 @@
-SRC_FILES := ua_data.c open62541.c ua_client.c ua_server.c
+SRC_FILES := ua_data.c open62541.c ua_client.c ua_server.c ua_api.c

 include $(KERNEL_ROOT)/compiler.mk
@@ -0,0 +1,68 @@
+/*
+* Copyright (c) 2021 AIIT XUOS Lab
+* XiUOS is licensed under Mulan PSL v2.
+* You can use this software according to the terms and conditions of the Mulan PSL v2.
+* You may obtain a copy of Mulan PSL v2 at:
+*        http://license.coscl.org.cn/MulanPSL2
+* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+* See the Mulan PSL v2 for more details.
+*/
+
+#include "open62541.h"
+#include <stdlib.h>
+#include "ua_api.h"
+
+
+#define UA_DEV_IP_LEN 128
+#define UA_NODE_LEN 50
+
+typedef struct _ua_dev_t
+{
+    char ua_remote_ip[UA_DEV_IP_LEN];
+    char ua_node[UA_NODE_LEN];
+    UA_Client *client;
+}ua_dev_t;
+
+
+int ua_open(void *dev)
+{
+    ua_dev_t *pdev = (ua_dev_t *)dev;
+
+    pdev->client = UA_Client_new();
+    UA_StatusCode retval = UA_Client_connect(pdev->client, pdev->ua_remote_ip);
+    if(retval != UA_STATUSCODE_GOOD) {
+        UA_Client_delete(pdev->client);
+        return (int)retval;
+    }
+    return EOK;
+}
+
+void ua_close(void *dev)
+{
+    ua_dev_t *pdev = (ua_dev_t *)dev;
+    UA_Client_disconnect(pdev->client);
+    UA_Client_delete(pdev->client); /* Disconnects the client internally */
+}
+
+int ua_read(void* dev, void *buf, size_t len)
+{
+    ua_dev_t *pdev = (ua_dev_t *)dev;
+    ua_get_server_info(pdev->client);
+    return EOK;
+}
+
+int ua_write(void* dev, const void *buf, size_t len)
+{
+    ua_dev_t *pdev = (ua_dev_t *)dev;
+
+    return EOK;
+}
+
+int ua_ioctl(void* dev, int cmd, void *arg)
+{
+    return EOK;
+}
+
+
@@ -28,4 +28,11 @@ void ua_browser_nodes(UA_Client *client);
 void ua_read_time(UA_Client *client);
 int16 ua_test(void);

+
+int ua_open(void *dev); // open and connect PLC device
+void ua_close(void* dev); // close and disconnect PLC device
+int ua_read(void* dev, void *buf, size_t len); // read data from PLC
+int ua_write(void* dev, const void *buf, size_t len); // write data from PLC
+int ua_ioctl(void* dev, int cmd, void *arg); // send control command to PLC
+
 #endif