wps_ps: Add new options to menuconfig, modify README and some explainations.

examples/wifi/power_save/README.md

@@ -4,8 +4,8 @@ This example shows how to use power save mode of wifi.
 
 Power save mode only works in sta mode.
 
-* No power save: This is default mode. And the esp32 will work at full speed.
+* No power save: This is default mode. And the esp32 will work with full power.
 
-* modem sleep: If you set power save mode as modem sleep, after connected to AP about 10s, esp32 will wake up and sleep periodically. When it sleeps, the current will be much lower than it works.
+* modem sleep: If you set power save mode as modem sleep, 10s later after connecting to AP, esp32 will wake up and sleep(turn off RF and PHY) periodically.
 
 * others: not supported yet.

examples/wifi/power_save/main/Kconfig.projbuild

@@ -1,13 +1,27 @@
 menu "Example Configuration"
+
 config WIFI_SSID
     string "WiFi SSID"
     default "myssid"
     help
 	SSID (network name) for the example to connect to.
+
 config WIFI_PASSWORD
     string "WiFi Password"
     default "mypassword"
     help
 	WiFi password (WPA or WPA2) for the example to use.
 
+choice POWER_SAVE_MODE
+    prompt "power save mode"
+    default POWER_SAVE_NONE
+    help
+	Power save mode for the esp32 to use.
+
+config POWER_SAVE_NONE
+    bool "none"
+config POWER_SAVE_MODEM
+    bool "modem"
+endchoice
+
 endmenu

examples/wifi/power_save/main/power_save.c

@@ -2,7 +2,7 @@
  * this example shows how to use power save mode
  * 
  * set a router or a AP using the same SSID&PASSWORD as configuration of this example.
- * start esp32 and when it connected to AP it will inter power save mode
+ * start esp32 and when it connected to AP it will enter power save mode
  */
 #include "freertos/FreeRTOS.h"
 #include "freertos/event_groups.h"
@@ -13,8 +13,14 @@
 /*set the ssid and password via "make menuconfig"*/
 #define DEFAULT_SSID CONFIG_WIFI_SSID
 #define DEFAULT_PWD CONFIG_WIFI_PASSWORD
-/* FreeRTOS event group to signal when we are connected & ready to make a request */
+
-static EventGroupHandle_t wifi_event_group;
+#if CONFIG_POWER_SAVE_MODEM
+#define DEFAULT_PS_MODE WIFI_PS_MODEM
+//#elif CONFIG_POWER_SAVE_NONE
+//#define DEFAULT_PS_MODE WIFI_PS_NONE
+#else
+#define DEFAULT_PS_MODE WIFI_PS_NONE
+#endif
 
 static const char *TAG = "power_save";
 
@@ -41,11 +47,10 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
     return ESP_OK;
 }
 
-/*init wifi as sta and set pawer save mode*/
+/*init wifi as sta and set power save mode*/
 static void wifi_power_save(void)
 {
     tcpip_adapter_init();
-    wifi_event_group = xEventGroupCreate();
     ESP_ERROR_CHECK(esp_event_loop_init(event_handler, NULL));
     wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
     ESP_ERROR_CHECK(esp_wifi_init(&cfg));
@@ -59,8 +64,8 @@ static void wifi_power_save(void)
     ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config));
     ESP_ERROR_CHECK(esp_wifi_start());
 
-    ESP_LOGI(TAG, "esp_wifi_set_ps(WIFI_PS_MODEM).");
+    ESP_LOGI(TAG, "esp_wifi_set_ps().");
-    esp_wifi_set_ps(WIFI_PS_MODEM);
+    esp_wifi_set_ps(DEFAULT_PS_MODE);
 }
 
 void app_main()

examples/wifi/wps/README.md

@@ -4,8 +4,8 @@ This example shows how to use wps in esp32.
 
 The wps only works in station mode now.
 
-* PBC_MODE: Start esp32 and push the buttom of wps on router, Then esp32 will get the ssid&password by wps PBC mode.
+* PBC_MODE: Start esp32 and press the wps button on router, Then esp32 will get the ssid&password by wps PBC mode.
 
-* PIN_MODE: Start esp32, It will inter wps mode and you'll see a pin code showing by COM. Enter this pin code in router and the esp32 can get ssid&password by wps PIN mode.
+* PIN_MODE: Start esp32, It will enter wps mode and you'll see a pin code showing by COM. Enter this pin code in router and the esp32 can get ssid&password by wps PIN mode.
 
 More info in the code [wps.c](./main/wps.c).

examples/wifi/wps/main/Kconfig.projbuild

@@ -0,0 +1,17 @@
+menu "Example Configuration"
+
+choice EXAMPLE_WPS_TYPE
+    prompt "WPS mode"
+    default EXAMPLE_WPS_TYPE_PBC
+    help
+	WPS type for the esp32 to use.
+
+config EXAMPLE_WPS_TYPE_PBC
+    bool "PBC"
+config EXAMPLE_WPS_TYPE_PIN
+    bool "PIN"
+config EXAMPLE_WPS_TYPE_DISABLE
+    bool "disable"
+endchoice
+
+endmenu

examples/wifi/wps/main/wps.c

@@ -1,6 +1,6 @@
 /* WiFi Connection Example using WPS
  * 
- * WPS_TYPE_PBC: Start esp32 and it will inter wps PBC mode. Then push the buttom of wps on router down. The esp32 will connected to the router.
+ * WPS_TYPE_PBC: Start esp32 and it will enter wps PBC mode. Then push the button of wps on router down. The esp32 will connected to the router.
  *
  * WPS_TYPE_PIN: Start esp32, You'll see PIN code which is a eight-digit number showing on COM. Enter the PIN code in router and then the esp32 will connected to router.
  */
@@ -12,19 +12,20 @@
 #include "esp_event_loop.h"
 
 
-/*set wps mode here*/
+/*set wps mode via "make menuconfig"*/
+#if CONFIG_EXAMPLE_WPS_TYPE_PBC
 #define WPS_TEST_MODE WPS_TYPE_PBC
-//#define WPS_TEST_MODE WPS_TYPE_PIN
+#elif CONFIG_EXAMPLE_WPS_TYPE_PIN
-//#define WPS_TEST_MODE WPS_TYPE_MAX 
+#define WPS_TEST_MODE WPS_TYPE_PIN
-
+#else
+#define WPS_TEST_MODE WPS_TYPE_DISABLE
+#endif
 
 #ifndef PIN2STR
 #define PIN2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5], (a)[6], (a)[7]
 #define PINSTR "%c%c%c%c%c%c%c%c"
 #endif
 
-/* FreeRTOS event group to signal when we are connected & ready to make a request */
-static EventGroupHandle_t wifi_event_group;
 
 static const char *TAG = "example_wps";
 
@@ -79,7 +80,6 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
 static void start_wps(void)
 {
     tcpip_adapter_init();
-    wifi_event_group = xEventGroupCreate();
     ESP_ERROR_CHECK(esp_event_loop_init(event_handler, NULL));
 
     wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();