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Code Issues Releases Wiki Activity

[wifi] ESP8266: Use direct SDK calls to reduce flash and heap allocation (#13349)

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This commit is contained in:
J. Nick Koston
2026-01-20 17:50:13 -10:00
committed by GitHub
parent cd4cb8b3ec
commit 3ca5e5e4e4
1 changed files with 24 additions and 7 deletions
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31
esphome/components/wifi/wifi_component_esp8266.cpp
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@@ -920,7 +920,16 @@ bssid_t WiFiComponent::wifi_bssid() {
}
return bssid;
}
std::string WiFiComponent::wifi_ssid() { return WiFi.SSID().c_str(); }
std::string WiFiComponent::wifi_ssid() {
struct station_config conf {};
if (!wifi_station_get_config(&conf)) {
return "";
}
// conf.ssid is uint8[32], not null-terminated if full
auto *ssid_s = reinterpret_cast<const char *>(conf.ssid);
size_t len = strnlen(ssid_s, sizeof(conf.ssid));
return {ssid_s, len};
}
const char *WiFiComponent::wifi_ssid_to(std::span<char, SSID_BUFFER_SIZE> buffer) {
struct station_config conf {};
if (!wifi_station_get_config(&conf)) {
@@ -934,16 +943,24 @@ const char *WiFiComponent::wifi_ssid_to(std::span<char, SSID_BUFFER_SIZE> buffer
return buffer.data();
}
int8_t WiFiComponent::wifi_rssi() {
if (WiFi.status() != WL_CONNECTED)
if (wifi_station_get_connect_status() != STATION_GOT_IP)
return WIFI_RSSI_DISCONNECTED;
int8_t rssi = WiFi.RSSI();
sint8 rssi = wifi_station_get_rssi();
// Values >= 31 are error codes per NONOS SDK API, not valid RSSI readings
return rssi >= 31 ? WIFI_RSSI_DISCONNECTED : rssi;
}
int32_t WiFiComponent::get_wifi_channel() { return WiFi.channel(); }
network::IPAddress WiFiComponent::wifi_subnet_mask_() { return {(const ip_addr_t *) WiFi.subnetMask()}; }
network::IPAddress WiFiComponent::wifi_gateway_ip_() { return {(const ip_addr_t *) WiFi.gatewayIP()}; }
network::IPAddress WiFiComponent::wifi_dns_ip_(int num) { return {(const ip_addr_t *) WiFi.dnsIP(num)}; }
int32_t WiFiComponent::get_wifi_channel() { return wifi_get_channel(); }
network::IPAddress WiFiComponent::wifi_subnet_mask_() {
struct ip_info ip {};
wifi_get_ip_info(STATION_IF, &ip);
return network::IPAddress(&ip.netmask);
}
network::IPAddress WiFiComponent::wifi_gateway_ip_() {
struct ip_info ip {};
wifi_get_ip_info(STATION_IF, &ip);
return network::IPAddress(&ip.gw);
}
network::IPAddress WiFiComponent::wifi_dns_ip_(int num) { return network::IPAddress(dns_getserver(num)); }
void WiFiComponent::wifi_loop_() {}
} // namespace esphome::wifi