From: Wu Jian Gang <wujiangang@espressif.com>
Date: Fri, 26 Aug 2016 03:52:46 +0000 (+0800)
Subject: tcpip_adapter: clean up dhcpc status
X-Git-Tag: v0.9~70^2~4^2~1
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=cb33a0fb9bc902901868f3d3b7189852674c8eca;p=esp-idf

tcpip_adapter: clean up dhcpc status

only auto start dhcpc in init status
---

diff --git a/components/esp32/event.c b/components/esp32/event.c
index d10972e295..6839493246 100644
--- a/components/esp32/event.c
+++ b/components/esp32/event.c
@@ -116,10 +116,17 @@ esp_err_t system_event_sta_stop_handle_default(system_event_t *event)
 
 esp_err_t system_event_sta_connected_handle_default(system_event_t *event)
 {
+    tcpip_adapter_dhcp_status_t status;
+	
     WIFI_API_CALL_CHECK("esp_wifi_reg_rxcb", esp_wifi_reg_rxcb(WIFI_IF_STA, (wifi_rxcb_t)tcpip_adapter_sta_input), ESP_OK);
 
     tcpip_adapter_up(TCPIP_ADAPTER_IF_STA);
-    tcpip_adapter_dhcpc_start(TCPIP_ADAPTER_IF_STA);
+
+    tcpip_adapter_dhcpc_get_status(TCPIP_ADAPTER_IF_STA, &status);
+
+    if (status == TCPIP_ADAPTER_DHCP_INIT) {
+        tcpip_adapter_dhcpc_start(TCPIP_ADAPTER_IF_STA);
+    }
 
     return ESP_OK;
 }
diff --git a/components/tcpip_adapter/tcpip_adapter_lwip.c b/components/tcpip_adapter/tcpip_adapter_lwip.c
index e846479055..d6ad20ad83 100644
--- a/components/tcpip_adapter/tcpip_adapter_lwip.c
+++ b/components/tcpip_adapter/tcpip_adapter_lwip.c
@@ -147,7 +147,10 @@ esp_err_t tcpip_adapter_down(tcpip_adapter_if_t tcpip_if)
             dhcp_release(esp_netif[tcpip_if]);
             dhcp_stop(esp_netif[tcpip_if]);
             dhcp_cleanup(esp_netif[tcpip_if]);
-            dhcpc_status = TCPIP_ADAPTER_DHCP_STOPED;
+
+            if (dhcpc_status != TCPIP_ADAPTER_DHCP_STOPED) {
+                dhcpc_status = TCPIP_ADAPTER_DHCP_INIT;
+            }
         } else {
             netif_set_down(esp_netif[tcpip_if]);
             netif_set_addr(esp_netif[tcpip_if], IP4_ADDR_ANY, IP4_ADDR_ANY, IP4_ADDR_ANY);