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This commit is contained in:
proddy
2026-09-02 17:47:55 +02:00
parent aaea00f943
commit 71824d1fc7
1 changed files with 3 additions and 22 deletions
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src/core/network.cpp
+3 -22
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@@ -524,8 +524,7 @@ void Network::startWiFiRadio() {
}
// Power down the WiFi radio completely (esp_wifi_stop), used when Ethernet is carrying the traffic.
// An idle STA still keeps the receiver powered, which on an Ethernet gateway is a pure waste of heat.
// also unloads the driver's DMA buffer pool of around 20KB
// An idle STA still keeps the receiver powered. It also unloads the driver's DMA buffer pool of around 20KB
void Network::stopWiFiRadio() {
#ifndef EMSESP_STANDALONE
if (wifi_radio_off_) {
@@ -570,14 +569,7 @@ void Network::startWIFI() {
}
#if CONFIG_IDF_TARGET_ESP32 && !defined(EMSESP_STANDALONE)
// Unlike WiFi, which stamps the hostname onto the STA netif as it is created, the Arduino ETH class
// leaves it unset, so lwIP falls back to CONFIG_LWIP_LOCAL_HOSTNAME ("tasmota" in the SDK we build
// against). esp_eth_start() polls the PHY synchronously, so on a warm reboot where the link never
// dropped the DHCP DISCOVER can go out before ETH.begin() has even returned. This handler is
// registered ahead of the esp_netif glue and therefore runs first, applying the hostname before the
// netif is handed to lwIP.
static char eth_hostname[33] = {0};
static void ethApplyHostname(void * /*arg*/, esp_event_base_t /*base*/, int32_t /*event_id*/, void * /*event_data*/) {
if (eth_hostname[0] != '\0' && ETH.netif() != nullptr) {
esp_netif_set_hostname(ETH.netif(), eth_hostname);
@@ -596,11 +588,7 @@ void Network::startEthernet() {
return;
}
// The driver is installed once and then left alone. Re-running the bring-up on a live interface
// tears it down behind our back: pinMode() on the PHY power pin hands the pin from the Ethernet
// bus back to GPIO, which fires the peripheral manager's deinit callback and calls ETH.end(),
// destroying the netif, its event group and the event handlers from the main loop task while the
// arduino_events task may be dispatching a link-up on the other core.
// Ensure the Ethernet driver is installed once and then left alone
if (ethernet_started_ || ethernet_connect_pending_ || ethernet_connected()) {
return;
}
@@ -651,11 +639,7 @@ void Network::startEthernet() {
eth_hostname_handler_registered_ = true;
}
// Forcing 10BASE-T roughly halves the PHY's power draw, which on these boards is usually the
// hottest component. All three must be set before ETH.begin(), and in this order - the speed
// and duplex setters are ignored while autonegotiation is still on. Half duplex is deliberate:
// a switch port that can't negotiate falls back to parallel detection, which is always half,
// so forcing full here would be a duplex mismatch. Opt-in only for that reason.
// Forcing 10BASE-T roughly halves the PHY's power draw
if (eth_10mbit_) {
ETH.setAutoNegotiation(false);
ETH.setLinkSpeed(10);
@@ -792,9 +776,6 @@ void Network::findNetworks() {
}
// Ethernet is carrying the traffic so the STA is dead weight - shut the radio down.
// It is brought back by checkConnection() when the link drops, or by startWIFI() if we
// fall through to the WiFi phase. Do this before startmDNS() so we don't register on a
// netif we are about to destroy.
if (network_iface_ == NetIface::ETHERNET) {
stopWiFiRadio();
}