blackmagic-esp32-s2/main/network.c

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6.1 KiB
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#include "nvs.h"
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#include "nvs-config.h"
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#include "network.h"
#include <esp_log.h>
#include <esp_wifi.h>
#include <freertos/event_groups.h>
#include <string.h>
#include <m-string.h>
#include <mdns.h>
#include <lwip/apps/netbiosns.h>
#define TAG "network"
#define ESP_WIFI_SSID "blackmagic"
#define ESP_WIFI_PASS "iamwitcher"
#define ESP_WIFI_CHANNEL 1
#define MDNS_HOST_NAME "blackmagic"
#define MDNS_INSTANCE "blackmagic web server"
#ifndef min
#define min(a, b) \
({ \
__typeof__(a) _a = (a); \
__typeof__(b) _b = (b); \
_a < _b ? _a : _b; \
})
#endif
#define WIFI_MAXIMUM_RETRY 3
#define WIFI_CONNECTED_BIT BIT0
#define WIFI_FAIL_BIT BIT1
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static WiFiMode wifi_mode = WiFiModeSTA;
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uint32_t network_get_ip(void) {
tcpip_adapter_ip_info_t ip_info;
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if(wifi_mode == WiFiModeSTA) {
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tcpip_adapter_get_ip_info(TCPIP_ADAPTER_IF_STA, &ip_info);
} else {
tcpip_adapter_get_ip_info(TCPIP_ADAPTER_IF_AP, &ip_info);
}
return ip_info.ip.addr;
}
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static void
sta_event_handler(void* arg, esp_event_base_t event_base, int32_t event_id, void* event_data) {
if(event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
esp_wifi_connect();
} else if(event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
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esp_wifi_connect();
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} else if(event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
ip_event_got_ip_t* event = (ip_event_got_ip_t*)event_data;
ESP_LOGI(TAG, "got ip:" IPSTR, IP2STR(&event->ip_info.ip));
}
}
static void
ap_event_handler(void* arg, esp_event_base_t event_base, int32_t event_id, void* event_data) {
if(event_id == WIFI_EVENT_AP_STACONNECTED) {
wifi_event_ap_staconnected_t* event = (wifi_event_ap_staconnected_t*)event_data;
ESP_LOGI(TAG, "station " MACSTR " join, AID=%d", MAC2STR(event->mac), event->aid);
} else if(event_id == WIFI_EVENT_AP_STADISCONNECTED) {
wifi_event_ap_stadisconnected_t* event = (wifi_event_ap_stadisconnected_t*)event_data;
ESP_LOGI(TAG, "station " MACSTR " leave, AID=%d", MAC2STR(event->mac), event->aid);
}
}
static void network_start_ap(mstring_t* ap_ssid, mstring_t* ap_pass) {
ESP_LOGI(TAG, "init access point mode");
esp_netif_create_default_wifi_ap();
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
ESP_ERROR_CHECK(esp_event_handler_instance_register(
WIFI_EVENT, ESP_EVENT_ANY_ID, &ap_event_handler, NULL, NULL));
wifi_config_t wifi_config;
memset(&wifi_config, 0, sizeof(wifi_config_t));
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wifi_config.ap.ssid_len = 0;
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wifi_config.ap.channel = ESP_WIFI_CHANNEL;
wifi_config.ap.max_connection = 4;
wifi_config.ap.authmode = WIFI_AUTH_WPA_WPA2_PSK;
memcpy(
&wifi_config.ap.ssid,
mstring_get_cstr(ap_ssid),
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min(sizeof(wifi_config.ap.ssid), mstring_size(ap_ssid)));
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memcpy(
&wifi_config.ap.password,
mstring_get_cstr(ap_pass),
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min(sizeof(wifi_config.ap.password), mstring_size(ap_pass)));
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wifi_config.ap.ssid_len = mstring_size(ap_ssid);
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if(mstring_size(ap_pass) == 0) {
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wifi_config.ap.authmode = WIFI_AUTH_OPEN;
}
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_APSTA));
ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_AP, &wifi_config));
ESP_ERROR_CHECK(esp_wifi_start());
ESP_LOGI(
TAG,
"wifi_init_softap finished. SSID:%s password:%s channel:%d",
mstring_get_cstr(ap_ssid),
mstring_get_cstr(ap_pass),
ESP_WIFI_CHANNEL);
ESP_LOGI(TAG, "init access point mode done");
}
static bool network_connect_ap(mstring_t* ap_ssid, mstring_t* ap_pass) {
bool result = false;
ESP_LOGI(TAG, "init connect to AP");
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esp_netif_create_default_wifi_sta();
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wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
ESP_ERROR_CHECK(
esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &sta_event_handler, NULL));
ESP_ERROR_CHECK(
esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &sta_event_handler, NULL));
wifi_config_t wifi_config;
memset(&wifi_config, 0, sizeof(wifi_config_t));
memcpy(
&wifi_config.sta.ssid,
mstring_get_cstr(ap_ssid),
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min(sizeof(wifi_config.sta.ssid), mstring_size(ap_ssid)));
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memcpy(
&wifi_config.sta.password,
mstring_get_cstr(ap_pass),
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min(sizeof(wifi_config.sta.password), mstring_size(ap_pass)));
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ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config));
ESP_ERROR_CHECK(esp_wifi_start());
ESP_LOGI(
TAG,
"init connect to AP done. SSID:%s password:%s",
mstring_get_cstr(ap_ssid),
mstring_get_cstr(ap_pass));
return result;
}
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void network_post_init(void) {
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ESP_LOGI(TAG, "init mdns");
mdns_init();
mdns_hostname_set(MDNS_HOST_NAME);
mdns_instance_name_set(MDNS_INSTANCE);
mdns_txt_item_t serviceTxtData[] = {{"board", "esp32"}, {"path", "/"}};
ESP_ERROR_CHECK(mdns_service_add(
"ESP32-WebServer",
"_http",
"_tcp",
80,
serviceTxtData,
sizeof(serviceTxtData) / sizeof(serviceTxtData[0])));
ESP_LOGI(TAG, "init MDNS done");
ESP_LOGI(TAG, "init netbios");
netbiosns_init();
netbiosns_set_name(MDNS_HOST_NAME);
ESP_LOGI(TAG, "init netbios done");
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}
WiFiMode network_init(void) {
mstring_t* ssid = mstring_alloc();
mstring_t* pass = mstring_alloc();
ESP_ERROR_CHECK(esp_event_loop_create_default());
ESP_ERROR_CHECK(esp_netif_init());
nvs_config_get_wifi_mode(&wifi_mode);
switch(wifi_mode) {
case WiFiModeAP:
nvs_config_get_ap_ssid(ssid);
nvs_config_get_ap_pass(pass);
network_start_ap(ssid, pass);
break;
case WiFiModeSTA:
nvs_config_get_sta_ssid(ssid);
nvs_config_get_sta_pass(pass);
network_connect_ap(ssid, pass);
break;
}
mstring_free(ssid);
mstring_free(pass);
network_post_init();
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return wifi_mode;
}
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WiFiMode network_get_mode(void) {
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return wifi_mode;
}