Add support for WiFi long range mode (espressif#3190)

* Add support for WiFi long range mode * Update WiFiGeneric.cpp

Author: me-no-dev

libraries/WiFi/src/WiFiGeneric.cpp

@@ -47,7 +47,6 @@ extern "C" {
 
 #include "esp32-hal-log.h"
 #include <vector>
-
 #include "sdkconfig.h"
 
 static xQueueHandle _network_event_queue;
@@ -133,24 +132,19 @@ static bool wifiLowLevelDeinit(){
 
 static bool _esp_wifi_started = false;
 
-static bool espWiFiStart(bool persistent){
+static bool espWiFiStart(){
  if(_esp_wifi_started){
  return true;
  }
- if(!wifiLowLevelInit(persistent)){
- return false;
- }
  esp_err_t err = esp_wifi_start();
  if (err != ESP_OK) {
  log_e("esp_wifi_start %d", err);
- wifiLowLevelDeinit();
  return false;
  }
  _esp_wifi_started = true;
  system_event_t event;
  event.event_id = SYSTEM_EVENT_WIFI_READY;
  WiFiGenericClass::_eventCallback(nullptr, &event);
-
  return true;
 }
 
@@ -190,6 +184,7 @@ wifi_event_id_t WiFiEventCbList::current_id = 1;
 static std::vector<WiFiEventCbList_t> cbEventList;
 
 bool WiFiGenericClass::_persistent = true;
+bool WiFiGenericClass::_long_range = false;
 wifi_mode_t WiFiGenericClass::_forceSleepLastMode = WIFI_MODE_NULL;
 
 WiFiGenericClass::WiFiGenericClass()
@@ -471,6 +466,16 @@ void WiFiGenericClass::persistent(bool persistent)
 }
 
 
+/**
+ * enable WiFi long range mode
+ * @param enable
+ */
+void WiFiGenericClass::enableLongRange(bool enable)
+{
+ _long_range = enable;
+}
+
+
 /**
  * set new mode
  * @param m WiFiMode_t
@@ -482,7 +487,7 @@ bool WiFiGenericClass::mode(wifi_mode_t m)
  return true;
  }
  if(!cm && m){
- if(!espWiFiStart(_persistent)){
+ if(!wifiLowLevelInit(_persistent)){
  return false;
  }
  } else if(cm && !m){
@@ -495,6 +500,25 @@ bool WiFiGenericClass::mode(wifi_mode_t m)
  log_e("Could not set mode! %d", err);
  return false;
  }
+ if(_long_range){
+ if(m & WIFI_MODE_STA){
+ err = esp_wifi_set_protocol(WIFI_IF_STA, WIFI_PROTOCOL_LR);
+ if(err != ESP_OK){
+ log_e("Could not enable long range on STA! %d", err);
+ return false;
+ }
+ }
+ if(m & WIFI_MODE_AP){
+ err = esp_wifi_set_protocol(WIFI_IF_AP, WIFI_PROTOCOL_LR);
+ if(err != ESP_OK){
+ log_e("Could not enable long range on AP! %d", err);
+ return false;
+ }
+ }
+ }
+ if(!espWiFiStart()){
+ return false;
+ }
  return true;
 }
 
@@ -504,7 +528,7 @@ bool WiFiGenericClass::mode(wifi_mode_t m)
  */
 wifi_mode_t WiFiGenericClass::getMode()
 {
- if(!_esp_wifi_started){
+ if(!lowLevelInitDone){
  return WIFI_MODE_NULL;
  }
  wifi_mode_t mode;

libraries/WiFi/src/WiFiGeneric.h

@@ -83,6 +83,7 @@ class WiFiGenericClass
  int32_t channel(void);
 
  void persistent(bool persistent);
+ void enableLongRange(bool enable);
 
  static bool mode(wifi_mode_t);
  static wifi_mode_t getMode();
@@ -100,6 +101,7 @@ class WiFiGenericClass
 
  protected:
  static bool _persistent;
+ static bool _long_range;
  static wifi_mode_t _forceSleepLastMode;
 
  static int setStatusBits(int bits);