Merge pull request #1693 from chenyong111/master

[net][at] Add AT serial device receive data length judgment.

components/net/at/include/at.h

@@ -27,7 +27,7 @@
 
 #include <rtthread.h>
 
-#define AT_SW_VERSION                  "0.2.2"
+#define AT_SW_VERSION                  "0.2.3"
 
 #define DBG_ENABLE
 #define DBG_SECTION_NAME               "AT"

components/net/at/src/at_client.c

@@ -547,7 +547,7 @@ static void client_parser(at_client_t client)
                     /* get the end data by response result, return response state END_OK. */
                     client->resp_status = AT_RESP_OK;
                 }
-                else if ((memcmp(client->recv_buffer, AT_RESP_END_ERROR, strlen(AT_RESP_END_ERROR)) == 0)
+                else if (strstr(client->recv_buffer, AT_RESP_END_ERROR)
                         || (memcmp(client->recv_buffer, AT_RESP_END_FAIL, strlen(AT_RESP_END_FAIL)) == 0))
                 {
                     client->resp_status = AT_RESP_ERROR;
@@ -577,7 +577,11 @@ static void client_parser(at_client_t client)
 
 static rt_err_t at_client_rx_ind(rt_device_t dev, rt_size_t size)
 {
-    rt_sem_release(at_client_local->rx_notice);
+    if (size > 0)
+    {
+        rt_sem_release(at_client_local->rx_notice);
+    }
+
     return RT_EOK;
 }
 

components/net/at/src/at_server.c

@@ -433,7 +433,10 @@ __retry:
 
 static rt_err_t at_rx_ind(rt_device_t dev, rt_size_t size)
 {
-    rt_sem_release(at_server_local->rx_notice);
+    if (size > 0)
+    {
+        rt_sem_release(at_server_local->rx_notice);
+    }
 
     return RT_EOK;
 }