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WiFi on in HTTP-mode only, Add batt-threshold to timeout

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As initially planned starting wifi only when needed, at change to HTTP mode.
Tested this on breakout board: ESP32 is not getting hot anymore!

Also optimized timeout: only notify "forgot to turn off" when battery is below certain
threshold (e.g. disable when charger is connected over night)

main:
    - dont start wifi at startup anymore
    - remove double-initialization of nvs
      already initialized in wifi.c, thus removed some code
    - optimize comments, logging

control:
    - timeout "forgot to turn off": Add battery threshold
    - start/stop wifi when switching to/from HTTP mode

wifi:
    - split init function to separate functions for NVS and NETIF (more clear in main)
    - optimize log output at nvs init (moved from main)
    - rename start/stop functions, formatting
This commit is contained in:
jonny
2024-03-03 22:04:27 +01:00
parent fbae02b328
commit 77ba81e996
5 changed files with 100 additions and 64 deletions
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84
common/wifi.c
View File

@@ -21,26 +21,45 @@ static const char *TAG = "wifi";
static esp_event_handler_instance_t instance_any_id;
//============================================
//============ init nvs and netif ============
//============================================
//initialize nvs-flash and netif (needed for both AP and CLIENT)
//##########################################
//############ common functions ############
//##########################################
//============================
//========= init nvs =========
//============================
//initialize nvs-flash (needed for both AP and CLIENT)
//has to be run once at startup
void wifi_initNvs_initNetif(){
void wifi_initNvs(){
//Initialize NVS (needed for wifi)
esp_err_t ret = nvs_flash_init();
if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
ESP_ERROR_CHECK(nvs_flash_erase());
ret = nvs_flash_init();
}
esp_err_t err = nvs_flash_init();
if (err == ESP_ERR_NVS_NO_FREE_PAGES || err == ESP_ERR_NVS_NEW_VERSION_FOUND)
{
ESP_LOGE(TAG, "NVS truncated -> deleting flash");
// Retry nvs_flash_init
ESP_ERROR_CHECK(nvs_flash_erase());
err = nvs_flash_init();
}
ESP_ERROR_CHECK(err);
}
//==============================
//========= init netif =========
//==============================
//initialize netif (needed for both AP and CLIENT)
//has to be run once at startup
void wifi_initNetif(){
ESP_ERROR_CHECK(esp_netif_init());
ESP_ERROR_CHECK(esp_event_loop_create_default());
}
//===========================================
//============ init access point ============
//===========================================
//############################################
//############### access point ###############
//############################################
//--------------------------------------------
//------ configuration / declarations --------
@@ -66,10 +85,12 @@ static void wifi_event_handler_ap(void* arg, esp_event_base_t event_base,
}
}
//-----------------------
//------ init ap --------
//-----------------------
void wifi_init_ap(void)
//========================
//====== start AP ========
//========================
void wifi_start_ap(void)
{
ap = esp_netif_create_default_wifi_ap();
@@ -107,9 +128,9 @@ void wifi_init_ap(void)
//=============================
//========= deinit AP =========
//========== stop AP ==========
//=============================
void wifi_deinit_ap(void)
void wifi_stop_ap(void)
{
ESP_ERROR_CHECK(esp_event_handler_instance_unregister(WIFI_EVENT, ESP_EVENT_ANY_ID, instance_any_id));
ESP_ERROR_CHECK(esp_event_handler_instance_unregister(WIFI_EVENT, ESP_EVENT_ANY_ID, instance_any_id));
@@ -123,9 +144,9 @@ void wifi_deinit_ap(void)
//===========================================
//=============== init client ===============
//===========================================
//##########################################
//################# client #################
//##########################################
//--------------------------------------------
//------ configuration / declarations --------
@@ -168,10 +189,13 @@ static void event_handler(void* arg, esp_event_base_t event_base,
xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
}
}
//---------------------------
//------ init client --------
//---------------------------
void wifi_init_client(void)
//===========================
//====== init client ========
//===========================
void wifi_start_client(void)
{
s_wifi_event_group = xEventGroupCreate();
sta = esp_netif_create_default_wifi_sta();
@@ -249,10 +273,10 @@ void wifi_init_client(void)
//=================================
//========= deinit client =========
//=================================
void wifi_deinit_client(void)
//===============================
//========= stop client =========
//===============================
void wifi_stop_client(void)
{
/* The event will not be processed after unregister */
ESP_ERROR_CHECK(esp_event_handler_instance_unregister(IP_EVENT, IP_EVENT_STA_GOT_IP, instance_got_ip));

20
common/wifi.h
View File

@@ -3,20 +3,20 @@
//TODO: currently wifi names and passwords are configured in wifi.c -> move this to config?
//initialize nvs-flash and netif (needed for both AP and CLIENT)
//has to be run once at startup
//Note: this cant be put in wifi_init functions because this may not be in deinit functions
void wifi_initNvs_initNetif();
//both functions have to be run once at startup
void wifi_initNvs();
void wifi_initNetif();
//function to start an access point
void wifi_init_ap(void);
//function to disable/deinit access point
void wifi_deinit_ap(void);
//function to start an access point (config in wifi.c)
void wifi_start_ap(void);
//function to disable/stop access point
void wifi_stop_ap(void);
//function to connect to existing wifi network
void wifi_init_client(void);
//function to connect to existing wifi network (config in wifi.c)
void wifi_start_client(void);
//function to disable/deinit client
void wifi_deinit_client(void);
void wifi_stop_client(void);