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Implement async wifi connection on picow #7076

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Merged
merged 2 commits into from
Oct 18, 2022
Merged

Implement async wifi connection on picow #7076

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bce024f
Implement async wifi connection on picow
bill88t Oct 17, 2022
47c373e
Use `cyw43_tcpip_link_status` instead
bill88t Oct 17, 2022
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49 changes: 29 additions & 20 deletions ports/raspberrypi/common-hal/wifi/Radio.c
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Original file line number Diff line number Diff line change
Expand Up @@ -173,28 +173,37 @@ wifi_radio_error_t common_hal_wifi_radio_connect(wifi_radio_obj_t *self, uint8_t
if (!common_hal_wifi_radio_get_enabled(self)) {
mp_raise_RuntimeError(translate("wifi is not enabled"));
}
unsigned timeout_ms = timeout <= 0 ? 8000 : (unsigned)MAX(0, MICROPY_FLOAT_C_FUN(ceil)(timeout * 1000));
// TODO use connect_async so we can service bg tasks & check for ctrl-c during

size_t timeout_ms = timeout <= 0 ? 8000 : (size_t)MICROPY_FLOAT_C_FUN(ceil)(timeout * 1000);
uint64_t start = port_get_raw_ticks(NULL);
uint64_t deadline = start + timeout_ms;

// connect
int result = cyw43_arch_wifi_connect_timeout_ms((const char *)ssid, (const char *)password, CYW43_AUTH_WPA2_AES_PSK, timeout_ms);
bindings_cyw43_wifi_enforce_pm();
switch (result) {
case 0:
return WIFI_RADIO_ERROR_NONE;
// case CYW43_LINK_DOWN:
// case CYW43_LINK_JOIN:
// case CYW43_LINK_NOIP:
// case CYW43_LINK_UP:
case CYW43_LINK_FAIL:
return WIFI_RADIO_ERROR_CONNECTION_FAIL;
case CYW43_LINK_NONET:
return WIFI_RADIO_ERROR_NO_AP_FOUND;
case CYW43_LINK_BADAUTH:
return WIFI_RADIO_ERROR_AUTH_FAIL;

default:
return WIFI_RADIO_ERROR_UNSPECIFIED;
cyw43_arch_wifi_connect_async((const char *)ssid, (const char *)password, CYW43_AUTH_WPA2_AES_PSK);

while (port_get_raw_ticks(NULL) < deadline) {
RUN_BACKGROUND_TASKS;
if (mp_hal_is_interrupted()) {
break;
}

int result = cyw43_tcpip_link_status(&cyw43_state, CYW43_ITF_STA);

switch (result) {
case CYW43_LINK_UP:
bindings_cyw43_wifi_enforce_pm();
return WIFI_RADIO_ERROR_NONE;
case CYW43_LINK_FAIL:
return WIFI_RADIO_ERROR_CONNECTION_FAIL;
case CYW43_LINK_NONET:
return WIFI_RADIO_ERROR_NO_AP_FOUND;
case CYW43_LINK_BADAUTH:
return WIFI_RADIO_ERROR_AUTH_FAIL;
}
}

// Being here means we either timed out or got interrupted.
return WIFI_RADIO_ERROR_UNSPECIFIED;
}

mp_obj_t common_hal_wifi_radio_get_ap_info(wifi_radio_obj_t *self) {
Expand Down