fix ec200, add power control and rssi reads.

class/ec200x/at_device_ec200x.c

@@ -28,8 +28,15 @@ static int ec200x_power_on(struct at_device *device)
 
     ec200x = (struct at_device_ec200x *)device->user_data;
 
+    if (ec200x->power_ctrl)
+    {
+        (ec200x->power_ctrl)(1);
+        rt_thread_mdelay(2000);
+    }
+
     if (ec200x->power_pin == -1)//no power on pin
     {
+        ec200x->power_status = RT_TRUE;
         return(RT_EOK);
     }
     if (ec200x->power_status_pin != -1)//use power status pin
@@ -66,6 +73,14 @@ static int ec200x_power_off(struct at_device *device)
 
     ec200x = (struct at_device_ec200x *)device->user_data;
 
+    if (ec200x->power_ctrl)
+    {
+        ec200x->power_status = RT_FALSE;
+        (ec200x->power_ctrl)(0);
+        rt_thread_mdelay(2*1000);
+        return(RT_EOK);
+    }
+
     if (ec200x->power_pin == -1)//no power on pin
     {
         return(RT_EOK);
@@ -103,7 +118,7 @@ static int ec200x_power_off(struct at_device *device)
 
 static int ec200x_sleep(struct at_device *device)
 {
-    at_response_t resp = RT_NULL;
+    //at_response_t resp = RT_NULL;
     struct at_device_ec200x *ec200x = RT_NULL;
 
     ec200x = (struct at_device_ec200x *)device->user_data;
@@ -148,7 +163,7 @@ static int ec200x_sleep(struct at_device *device)
 
 static int ec200x_wakeup(struct at_device *device)
 {
-    at_response_t resp = RT_NULL;
+    //at_response_t resp = RT_NULL;
     struct at_device_ec200x *ec200x = RT_NULL;
 
     ec200x = (struct at_device_ec200x *)device->user_data;
@@ -234,6 +249,38 @@ static int ec200x_check_link_status(struct at_device *device)
     return(result);
 }
 
+static int ec200x_read_rssi(struct at_device *device)
+{
+    int result = -RT_ERROR;
+    at_response_t resp = at_create_resp(64, 0, rt_tick_from_millisecond(300));
+    if (resp == RT_NULL)
+    {
+        LOG_D("no memory for resp create.");
+        return(result);
+    }
+    
+    if (at_obj_exec_cmd(device->client, resp, "AT+CSQ") == RT_EOK)
+    {
+        int rssi = 0;
+        if (at_resp_parse_line_args_by_kw(resp, "+CSQ:", "+CSQ: %d", &rssi) > 0)
+        {
+            struct at_device_ec200x *ec200x = (struct at_device_ec200x *)device->user_data;
+            if (rssi < 99)
+            {
+                ec200x->rssi = rssi * 2 - 113;
+            }
+            else if(rssi >= 100 && rssi < 199)
+            {
+                ec200x->rssi = rssi - 216;
+            }
+            result = RT_EOK;
+        }
+    }
+    
+    at_delete_resp(resp);
+
+    return(result);
+}
 
 /* =============================  ec200x network interface operations ============================= */
 /* set ec200x network interface device status and address information */
@@ -307,6 +354,18 @@ static int ec200x_netdev_set_info(struct netdev *netdev)
             }
         }
     }
+    
+    /* read number of SIM card */
+    {
+        if (at_obj_exec_cmd(device->client, resp, "AT+QCCID") == RT_EOK)
+        {
+            char str[32];
+            if (at_resp_parse_line_args_by_kw(resp, "+QCCID:", "+QCCID:%s\r", str) > 0)
+            {
+                LOG_D("QCCID of SIM card : %s", str);
+            }
+        }
+    }
 
     /* set network interface device IP address */
     {
@@ -392,6 +451,8 @@ static void ec200x_check_link_status_entry(void *parameter)
 
     while (1)
     {
+        ec200x_read_rssi(device);
+        
         rt_thread_delay(EC200X_LINK_DELAY_TIME);
 
         is_link_up = (ec200x_check_link_status(device) == RT_EOK);
@@ -732,7 +793,7 @@ static void ec200x_init_thread_entry(void *parameter)
             result = -RT_ERROR;
             goto __exit;
         }
-
+        
         /* check signal strength */
         for (i = 0; i < CSQ_RETRY; i++)
         {

class/ec200x/at_device_ec200x.h

@@ -31,6 +31,7 @@ struct at_device_ec200x
     int power_status_pin;
     int wakeup_pin;
     size_t recv_line_num;
+    void (*power_ctrl)(int is_on);
     struct at_device device;
 
     void *socket_data;
@@ -38,6 +39,7 @@ struct at_device_ec200x
 
     rt_bool_t power_status;
     rt_bool_t sleep_status;
+    int rssi;
 };
 
 #ifdef AT_USING_SOCKET

samples/at_sample_ec200x.c

@@ -24,6 +24,7 @@ static struct at_device_ec200x _dev =
     EC200X_SAMPLE_STATUS_PIN,
     EC200X_SAMPLE_WAKEUP_PIN,
     EC200X_SAMPLE_RECV_BUFF_LEN,
+    RT_NULL
 };
 
 static int ec200x_device_register(void)
@@ -38,3 +39,9 @@ static int ec200x_device_register(void)
 }
 INIT_APP_EXPORT(ec200x_device_register);
 
+int ec200x_get_rssi(void)
+{
+    struct at_device_ec200x *ec200x = &_dev;
+    return(ec200x->rssi);
+}
+