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esp32/network_wlan: Wait for WIFI_EVENT_STA_START after activating. 

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George 2023-06-21 17:08:08 +10:00
parent 2cc3711e5e
commit bccbaa92b1
1 changed files with 7 additions and 7 deletions
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14
ports/esp32/network_wlan.c
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@ -72,7 +72,7 @@ static bool mdns_initialised = false;
#endif
static uint8_t conf_wifi_sta_reconnects = 0;
static uint8_t wifi_sta_reconnects;
static volatile uint8_t wifi_sta_reconnects;
// This function is called by the system-event task and so runs in a different
// thread to the main MicroPython task. It must not raise any Python exceptions.
@ -233,16 +233,16 @@ STATIC mp_obj_t network_wlan_active(size_t n_args, const mp_obj_t *args) {
} else {
esp_exceptions(esp_wifi_set_mode(mode));
if (!wifi_started) {
// WIFI_EVENT_STA_START must be received before esp_wifi_connect() can be called.
// Use the `wifi_sta_reconnects` variable to detect that event.
wifi_sta_reconnects = 1;
esp_exceptions(esp_wifi_start());
wifi_started = true;
while (wifi_sta_reconnects != 0) {
MICROPY_EVENT_POLL_HOOK;
}
}
}
// This delay is a band-aid patch for issues #8289, #8792 and #9236,
// allowing the esp data structures to settle. It looks like some
// kind of race condition, which is not yet found. But at least
// this small delay seems not hurt much, since wlan.active() is
// usually not called in a time critical part of the code.
mp_hal_delay_ms(1);
}
return (mode & bit) ? mp_const_true : mp_const_false;