[component][net][at] 避免使用rt_device的user_data，完善V1版本串口的适配

Author: Ryan-CW-Code

components/net/at/src/at_client.c

@@ -535,23 +535,18 @@ rt_size_t at_client_obj_send(at_client_t client, const char *buf, rt_size_t size
 
 static rt_err_t at_client_getchar(at_client_t client, char *ch)
 {
-    rt_err_t result = RT_EOK;
-
+    rt_err_t   result  = RT_EOK;
+    rt_ssize_t recvLen = 0;
 #if (!defined(RT_USING_SERIAL_V2))
-    while (rt_device_read(client->device, 0, ch, 1) == 0)
+    recvLen = rt_device_read(client->device, 0, ch, 1);
+    if (recvLen <= 0)
     {
-        result = rt_sem_take(client->rx_notice, rt_tick_from_millisecond(timeout));
-        if (result != RT_EOK)
-        {
-            return result;
-        }
-
-        rt_sem_control(client->rx_notice, RT_IPC_CMD_RESET, RT_NULL);
+        result = -RT_ERROR;
     }
 #else
     rt_int32_t rx_timeout = 0;
     rt_device_control(client->device, RT_SERIAL_CTRL_SET_RX_TIMEOUT, (void *)&rx_timeout);
-    rt_ssize_t recvLen = rt_device_read(client->device, 0, ch, 1);
+    recvLen = rt_device_read(client->device, 0, ch, 1);
     if (recvLen <= 0)
     {
         result = -RT_ERROR;
@@ -593,7 +588,7 @@ rt_size_t at_client_obj_recv(at_client_t client, char *buf, rt_size_t size, rt_i
     {
         rt_size_t read_len;
 
-        rt_sem_control(client->rx_notice, RT_IPC_CMD_RESET, RT_NULL);
+        rt_event_recv(&client->event, at_client_rx_notice_event, RT_EVENT_FLAG_AND | RT_EVENT_FLAG_CLEAR, 0, NULL);
 
         read_len = rt_device_read(client->device, 0, buf + read_idx, size);
         if (read_len > 0)
@@ -603,7 +598,7 @@ rt_size_t at_client_obj_recv(at_client_t client, char *buf, rt_size_t size, rt_i
         }
         else
         {
-            if (rt_sem_take(client->rx_notice, rt_tick_from_millisecond(timeout)) != RT_EOK)
+            if (rt_event_recv(&client->event, at_client_rx_notice_event, RT_EVENT_FLAG_AND | RT_EVENT_FLAG_CLEAR, rt_tick_from_millisecond(timeout), NULL) != RT_EOK)
                 break;
         }
     }
@@ -918,8 +913,26 @@ static void client_parser(at_client_t client)
 
 static rt_err_t at_client_rx_ind(rt_device_t dev, rt_size_t size)
 {
-    at_client_t client = (at_client_t)dev->user_data;
-    rt_event_send(&client->event, at_client_rx_notice_event);
+    rt_slist_t *node;
+    at_client_t client;
+
+    if (size <= 0)
+    {
+        return RT_EOK;
+    }
+
+    rt_base_t level = rt_hw_interrupt_disable();
+    rt_slist_for_each(node, &g_at_client_list)
+    {
+        client = rt_slist_entry(node, struct at_client, list);
+        if (client->device == dev)
+        {
+            rt_event_send(&client->event, at_client_rx_notice_event);
+            break;
+        }
+    }
+    rt_hw_interrupt_enable(level);
+
     return RT_EOK;
 }
 
@@ -1042,7 +1055,6 @@ int at_client_init(const char *dev_name, rt_size_t recv_bufsz, rt_size_t send_bu
         rt_slist_append(&g_at_client_list, &client->list);
         rt_hw_interrupt_enable(level);
 
-        client->device->user_data = client;
         rt_device_set_rx_indicate(client->device, at_client_rx_ind);
 
         client->status = AT_STATUS_INITIALIZED;
@@ -1090,8 +1102,7 @@ int at_client_deInit(const char *dev_name)
     rt_event_detach(&client->event);
     rt_mutex_detach(&client->lock);
 
-    client->device->user_data = RT_NULL;
-    result                    = rt_device_close(client->device);
+    result = rt_device_close(client->device);
 
     rt_free(client);
     return result;