From c694c5134f516a30ae6a8572be1642a6ddc35dba Mon Sep 17 00:00:00 2001
From: Xia Xiao Tian <xxt@201608-4.(none)>
Date: Tue, 15 Nov 2016 10:28:36 +0800
Subject: [PATCH] modem sleep: add wifi power save callback to idle task

---
 components/esp32/include/esp_wifi_internal.h | 9 +++++++++
 components/esp32/task_wdt.c                  | 4 +++-
 components/freertos/tasks.c                  | 2 +-
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/components/esp32/include/esp_wifi_internal.h b/components/esp32/include/esp_wifi_internal.h
index 2015b5063d..1d393b95f2 100644
--- a/components/esp32/include/esp_wifi_internal.h
+++ b/components/esp32/include/esp_wifi_internal.h
@@ -105,6 +105,15 @@ esp_err_t esp_wifi_internal_reg_rxcb(wifi_interface_t ifx, wifi_rxcb_t fn);
   */
 esp_err_t esp_wifi_internal_set_sta_ip(void);
 
+/**
+  * @brief     The WiFi power save callback function
+  *
+  * @param     none
+  *
+  * @return    none
+  */
+void esp_wifi_ps_idle_cb(void);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/components/esp32/task_wdt.c b/components/esp32/task_wdt.c
index bec1cadaa7..79385f2a5e 100644
--- a/components/esp32/task_wdt.c
+++ b/components/esp32/task_wdt.c
@@ -29,6 +29,7 @@
 #include "soc/timer_group_struct.h"
 #include "soc/timer_group_reg.h"
 #include "esp_log.h"
+#include "esp_wifi_internal.h"
 
 #include "esp_task_wdt.h"
 
@@ -167,7 +168,8 @@ void vApplicationIdleHook(void) {
     if (xPortGetCoreID()!=0) return;
 #endif
     esp_task_wdt_feed();
+    esp_wifi_ps_idle_cb();
 }
 #endif
 
-#endif
\ No newline at end of file
+#endif
diff --git a/components/freertos/tasks.c b/components/freertos/tasks.c
index b79d3a98ba..f827924f57 100644
--- a/components/freertos/tasks.c
+++ b/components/freertos/tasks.c
@@ -113,7 +113,7 @@ functions but without including stdio.h here. */
 /*
  * Defines the size, in words, of the stack allocated to the idle task.
  */
-#define tskIDLE_STACK_SIZE	configMINIMAL_STACK_SIZE
+#define tskIDLE_STACK_SIZE	2048//configMINIMAL_STACK_SIZE
 
 #if( configUSE_PREEMPTION == 0 )
 	/* If the cooperative scheduler is being used then a yield should not be