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circuitpython/extmod/network_cyw43.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2018-2019 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdio.h>
#include <string.h>
#include "py/runtime.h"
#include "py/objstr.h"
#include "py/mphal.h"
#if MICROPY_PY_NETWORK_CYW43
#include "lwip/netif.h"
#include "extmod/network_cyw43.h"
#include "modnetwork.h"
#if MICROPY_PY_NETWORK_CYW43_USE_LIB_DRIVER
#include "lib/cyw43-driver/src/cyw43.h"
#else
#include "drivers/cyw43/cyw43.h"
#endif
typedef struct _network_cyw43_obj_t {
mp_obj_base_t base;
cyw43_t *cyw;
int itf;
} network_cyw43_obj_t;
STATIC const network_cyw43_obj_t network_cyw43_wl_sta = { { &mp_network_cyw43_type }, &cyw43_state, CYW43_ITF_STA };
STATIC const network_cyw43_obj_t network_cyw43_wl_ap = { { &mp_network_cyw43_type }, &cyw43_state, CYW43_ITF_AP };
STATIC void network_cyw43_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(self_in);
struct netif *netif = &self->cyw->netif[self->itf];
int status = cyw43_tcpip_link_status(self->cyw, self->itf);
const char *status_str;
if (status == CYW43_LINK_DOWN) {
status_str = "down";
} else if (status == CYW43_LINK_JOIN || status == CYW43_LINK_NOIP) {
status_str = "join";
} else if (status == CYW43_LINK_UP) {
status_str = "up";
} else if (status == CYW43_LINK_NONET) {
status_str = "nonet";
} else if (status == CYW43_LINK_BADAUTH) {
status_str = "badauth";
} else {
status_str = "fail";
}
mp_printf(print, "<CYW43 %s %s %u.%u.%u.%u>",
self->itf == CYW43_ITF_STA ? "STA" : "AP",
status_str,
netif->ip_addr.addr & 0xff,
netif->ip_addr.addr >> 8 & 0xff,
netif->ip_addr.addr >> 16 & 0xff,
netif->ip_addr.addr >> 24
);
}
STATIC mp_obj_t network_cyw43_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
mp_arg_check_num(n_args, n_kw, 0, 1, false);
if (n_args == 0 || mp_obj_get_int(args[0]) == MOD_NETWORK_STA_IF) {
return MP_OBJ_FROM_PTR(&network_cyw43_wl_sta);
} else {
return MP_OBJ_FROM_PTR(&network_cyw43_wl_ap);
}
}
STATIC mp_obj_t network_cyw43_send_ethernet(mp_obj_t self_in, mp_obj_t buf_in) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(self_in);
mp_buffer_info_t buf;
mp_get_buffer_raise(buf_in, &buf, MP_BUFFER_READ);
int ret = cyw43_send_ethernet(self->cyw, self->itf, buf.len, buf.buf, false);
if (ret) {
mp_raise_OSError(-ret);
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(network_cyw43_send_ethernet_obj, network_cyw43_send_ethernet);
STATIC mp_obj_t network_cyw43_ioctl(mp_obj_t self_in, mp_obj_t cmd_in, mp_obj_t buf_in) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(self_in);
mp_buffer_info_t buf;
mp_get_buffer_raise(buf_in, &buf, MP_BUFFER_READ | MP_BUFFER_WRITE);
cyw43_ioctl(self->cyw, mp_obj_get_int(cmd_in), buf.len, buf.buf, self->itf);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_3(network_cyw43_ioctl_obj, network_cyw43_ioctl);
/*******************************************************************************/
// network API
STATIC mp_obj_t network_cyw43_deinit(mp_obj_t self_in) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(self_in);
cyw43_deinit(self->cyw);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(network_cyw43_deinit_obj, network_cyw43_deinit);
STATIC mp_obj_t network_cyw43_active(size_t n_args, const mp_obj_t *args) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(args[0]);
if (n_args == 1) {
return mp_obj_new_bool(cyw43_tcpip_link_status(self->cyw, self->itf));
} else {
#if MICROPY_PY_NETWORK_CYW43_USE_LIB_DRIVER
cyw43_wifi_set_up(self->cyw, self->itf, mp_obj_is_true(args[1]), MICROPY_CYW43_COUNTRY);
#else
cyw43_wifi_set_up(self->cyw, self->itf, mp_obj_is_true(args[1]));
#endif
return mp_const_none;
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(network_cyw43_active_obj, 1, 2, network_cyw43_active);
STATIC int network_cyw43_scan_cb(void *env, const cyw43_ev_scan_result_t *res) {
mp_obj_t list = MP_OBJ_FROM_PTR(env);
// Search for existing BSSID to remove duplicates
bool found = false;
size_t len;
mp_obj_t *items;
mp_obj_get_array(list, &len, &items);
for (size_t i = 0; i < len; ++i) {
mp_obj_tuple_t *t = MP_OBJ_TO_PTR(items[i]);
if (memcmp(res->bssid, ((mp_obj_str_t *)MP_OBJ_TO_PTR(t->items[1]))->data, sizeof(res->bssid)) == 0) {
if (res->rssi > MP_OBJ_SMALL_INT_VALUE(t->items[3])) {
t->items[3] = MP_OBJ_NEW_SMALL_INT(res->rssi);
}
t->items[5] = MP_OBJ_NEW_SMALL_INT(MP_OBJ_SMALL_INT_VALUE(t->items[5]) + 1);
found = true;
break;
}
}
// Add to list of results if wanted
if (!found) {
mp_obj_t tuple[6] = {
mp_obj_new_bytes(res->ssid, res->ssid_len),
mp_obj_new_bytes(res->bssid, sizeof(res->bssid)),
MP_OBJ_NEW_SMALL_INT(res->channel),
MP_OBJ_NEW_SMALL_INT(res->rssi),
MP_OBJ_NEW_SMALL_INT(res->auth_mode),
// mp_const_false, // hidden
MP_OBJ_NEW_SMALL_INT(1), // N
};
mp_obj_list_append(list, mp_obj_new_tuple(6, tuple));
}
return 0; // continue scan
}
STATIC mp_obj_t network_cyw43_scan(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_passive, ARG_ssid, ARG_essid, ARG_bssid };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_passive, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
{ MP_QSTR_ssid, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
{ MP_QSTR_essid, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
{ MP_QSTR_bssid, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
};
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
// Deprecated kwarg
if (args[ARG_essid].u_obj != mp_const_none) {
args[ARG_ssid].u_obj = args[ARG_essid].u_obj;
}
cyw43_wifi_scan_options_t opts;
opts.scan_type = args[ARG_passive].u_bool ? 1 : 0;
if (args[ARG_ssid].u_obj == mp_const_none) {
opts.ssid_len = 0;
} else {
mp_buffer_info_t ssid;
mp_get_buffer_raise(args[ARG_ssid].u_obj, &ssid, MP_BUFFER_READ);
opts.ssid_len = MIN(ssid.len, sizeof(opts.ssid));
memcpy(opts.ssid, ssid.buf, opts.ssid_len);
}
if (args[ARG_bssid].u_obj == mp_const_none) {
memset(opts.bssid, 0xff, sizeof(opts.bssid));
} else {
mp_buffer_info_t bssid;
mp_get_buffer_raise(args[ARG_bssid].u_obj, &bssid, MP_BUFFER_READ);
memcpy(opts.bssid, bssid.buf, sizeof(opts.bssid));
}
mp_obj_t res = mp_obj_new_list(0, NULL);
int scan_res = cyw43_wifi_scan(self->cyw, &opts, MP_OBJ_TO_PTR(res), network_cyw43_scan_cb);
if (scan_res < 0) {
mp_raise_OSError(-scan_res);
}
// Wait for scan to finish, with a 10s timeout
uint32_t start = mp_hal_ticks_ms();
while (cyw43_wifi_scan_active(self->cyw) && mp_hal_ticks_ms() - start < 10000) {
MICROPY_EVENT_POLL_HOOK
}
return res;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(network_cyw43_scan_obj, 1, network_cyw43_scan);
STATIC mp_obj_t network_cyw43_connect(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_ssid, ARG_key, ARG_auth, ARG_security, ARG_bssid, ARG_channel };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_ssid, MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
{ MP_QSTR_key, MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
{ MP_QSTR_auth, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = -1} },
{ MP_QSTR_security, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = -1} },
{ MP_QSTR_bssid, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
{ MP_QSTR_channel, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = -1} },
};
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
// Deprecated kwarg
if (args[ARG_auth].u_int != -1) {
args[ARG_security] = args[ARG_auth];
}
mp_buffer_info_t ssid;
mp_get_buffer_raise(args[ARG_ssid].u_obj, &ssid, MP_BUFFER_READ);
mp_buffer_info_t key;
key.buf = NULL;
if (args[ARG_key].u_obj != mp_const_none) {
mp_get_buffer_raise(args[ARG_key].u_obj, &key, MP_BUFFER_READ);
}
mp_buffer_info_t bssid;
bssid.buf = NULL;
if (args[ARG_bssid].u_obj != mp_const_none) {
mp_get_buffer_raise(args[ARG_bssid].u_obj, &bssid, MP_BUFFER_READ);
if (bssid.len != 6) {
mp_raise_ValueError(NULL);
}
}
int ret = cyw43_wifi_join(self->cyw, ssid.len, ssid.buf, key.len, key.buf,
args[ARG_security].u_int, bssid.buf, args[ARG_channel].u_int);
if (ret != 0) {
mp_raise_OSError(-ret);
}
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(network_cyw43_connect_obj, 1, network_cyw43_connect);
STATIC mp_obj_t network_cyw43_disconnect(mp_obj_t self_in) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(self_in);
cyw43_wifi_leave(self->cyw, self->itf);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(network_cyw43_disconnect_obj, network_cyw43_disconnect);
STATIC mp_obj_t network_cyw43_isconnected(mp_obj_t self_in) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(self_in);
return mp_obj_new_bool(cyw43_tcpip_link_status(self->cyw, self->itf) == 3);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(network_cyw43_isconnected_obj, network_cyw43_isconnected);
STATIC mp_obj_t network_cyw43_ifconfig(size_t n_args, const mp_obj_t *args) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(args[0]);
return mod_network_nic_ifconfig(&self->cyw->netif[self->itf], n_args - 1, args + 1);
}
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(network_cyw43_ifconfig_obj, 1, 2, network_cyw43_ifconfig);
STATIC mp_obj_t network_cyw43_status(size_t n_args, const mp_obj_t *args) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(args[0]);
(void)self;
if (n_args == 1) {
// no arguments: return link status
return MP_OBJ_NEW_SMALL_INT(cyw43_tcpip_link_status(self->cyw, self->itf));
}
// one argument: return status based on query parameter
switch (mp_obj_str_get_qstr(args[1])) {
case MP_QSTR_stations: {
// return list of connected stations
if (self->itf != CYW43_ITF_AP) {
mp_raise_ValueError(MP_ERROR_TEXT("AP required"));
}
int num_stas;
uint8_t macs[32 * 6];
cyw43_wifi_ap_get_stas(self->cyw, &num_stas, macs);
mp_obj_t list = mp_obj_new_list(num_stas, NULL);
for (int i = 0; i < num_stas; ++i) {
mp_obj_t tuple[1] = {
mp_obj_new_bytes(&macs[i * 6], 6),
};
((mp_obj_list_t *)MP_OBJ_TO_PTR(list))->items[i] = mp_obj_new_tuple(1, tuple);
}
return list;
}
}
mp_raise_ValueError(MP_ERROR_TEXT("unknown status param"));
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(network_cyw43_status_obj, 1, 2, network_cyw43_status);
static inline uint32_t nw_get_le32(const uint8_t *buf) {
return buf[0] | buf[1] << 8 | buf[2] << 16 | buf[3] << 24;
}
static inline void nw_put_le32(uint8_t *buf, uint32_t x) {
buf[0] = x;
buf[1] = x >> 8;
buf[2] = x >> 16;
buf[3] = x >> 24;
}
STATIC mp_obj_t network_cyw43_config(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs) {
network_cyw43_obj_t *self = MP_OBJ_TO_PTR(args[0]);
if (kwargs->used == 0) {
// Get config value
if (n_args != 2) {
mp_raise_TypeError(MP_ERROR_TEXT("must query one param"));
}
switch (mp_obj_str_get_qstr(args[1])) {
case MP_QSTR_antenna: {
uint8_t buf[4];
cyw43_ioctl(self->cyw, CYW43_IOCTL_GET_ANTDIV, 4, buf, self->itf);
return MP_OBJ_NEW_SMALL_INT(nw_get_le32(buf));
}
case MP_QSTR_channel: {
uint8_t buf[4];
cyw43_ioctl(self->cyw, CYW43_IOCTL_GET_CHANNEL, 4, buf, self->itf);
return MP_OBJ_NEW_SMALL_INT(nw_get_le32(buf));
}
case MP_QSTR_ssid:
case MP_QSTR_essid: {
if (self->itf == CYW43_ITF_STA) {
uint8_t buf[36];
cyw43_ioctl(self->cyw, CYW43_IOCTL_GET_SSID, 36, buf, self->itf);
return mp_obj_new_str((const char *)buf + 4, nw_get_le32(buf));
} else {
size_t len;
const uint8_t *buf;
cyw43_wifi_ap_get_ssid(self->cyw, &len, &buf);
return mp_obj_new_str((const char *)buf, len);
}
}
#if MICROPY_PY_NETWORK_CYW43_USE_LIB_DRIVER
case MP_QSTR_security: {
return MP_OBJ_NEW_SMALL_INT(cyw43_wifi_ap_get_auth(self->cyw));
}
#endif
case MP_QSTR_mac: {
uint8_t buf[6];
cyw43_wifi_get_mac(self->cyw, self->itf, buf);
return mp_obj_new_bytes(buf, 6);
}
case MP_QSTR_txpower: {
uint8_t buf[13];
memcpy(buf, "qtxpower\x00\x00\x00\x00\x00", 13);
cyw43_ioctl(self->cyw, CYW43_IOCTL_GET_VAR, 13, buf, self->itf);
return MP_OBJ_NEW_SMALL_INT(nw_get_le32(buf) / 4);
}
#if !MICROPY_PY_NETWORK_CYW43_USE_LIB_DRIVER
case MP_QSTR_hostname: {
return mp_obj_new_str(self->cyw->hostname, strlen(self->cyw->hostname));
}
#endif
default:
mp_raise_ValueError(MP_ERROR_TEXT("unknown config param"));
}
} else {
// Set config value(s)
if (n_args != 1) {
mp_raise_TypeError(MP_ERROR_TEXT("can't specify pos and kw args"));
}
for (size_t i = 0; i < kwargs->alloc; ++i) {
if (MP_MAP_SLOT_IS_FILLED(kwargs, i)) {
mp_map_elem_t *e = &kwargs->table[i];
switch (mp_obj_str_get_qstr(e->key)) {
case MP_QSTR_antenna: {
uint8_t buf[4];
nw_put_le32(buf, mp_obj_get_int(e->value));
cyw43_ioctl(self->cyw, CYW43_IOCTL_SET_ANTDIV, 4, buf, self->itf);
break;
}
case MP_QSTR_channel: {
cyw43_wifi_ap_set_channel(self->cyw, mp_obj_get_int(e->value));
break;
}
case MP_QSTR_ssid:
case MP_QSTR_essid: {
size_t len;
const char *str = mp_obj_str_get_data(e->value, &len);
cyw43_wifi_ap_set_ssid(self->cyw, len, (const uint8_t *)str);
break;
}
case MP_QSTR_monitor: {
mp_int_t value = mp_obj_get_int(e->value);
uint8_t buf[9 + 4];
memcpy(buf, "allmulti\x00", 9);
nw_put_le32(buf + 9, value);
cyw43_ioctl(self->cyw, CYW43_IOCTL_SET_VAR, 9 + 4, buf, self->itf);
nw_put_le32(buf, value);
cyw43_ioctl(self->cyw, CYW43_IOCTL_SET_MONITOR, 4, buf, self->itf);
if (value) {
self->cyw->trace_flags |= CYW43_TRACE_MAC;
} else {
self->cyw->trace_flags &= ~CYW43_TRACE_MAC;
}
break;
}
case MP_QSTR_security: {
cyw43_wifi_ap_set_auth(self->cyw, mp_obj_get_int(e->value));
break;
}
case MP_QSTR_key:
case MP_QSTR_password: {
size_t len;
const char *str = mp_obj_str_get_data(e->value, &len);
cyw43_wifi_ap_set_password(self->cyw, len, (const uint8_t *)str);
break;
}
case MP_QSTR_pm: {
cyw43_wifi_pm(self->cyw, mp_obj_get_int(e->value));
break;
}
case MP_QSTR_trace: {
self->cyw->trace_flags = mp_obj_get_int(e->value);
break;
}
case MP_QSTR_txpower: {
mp_int_t dbm = mp_obj_get_int(e->value);
uint8_t buf[9 + 4];
memcpy(buf, "qtxpower\x00", 9);
nw_put_le32(buf + 9, dbm * 4);
cyw43_ioctl(self->cyw, CYW43_IOCTL_SET_VAR, 9 + 4, buf, self->itf);
break;
}
#if !MICROPY_PY_NETWORK_CYW43_USE_LIB_DRIVER
case MP_QSTR_hostname: {
const char *hostname = mp_obj_str_get_str(e->value);
strncpy(self->cyw->hostname, hostname, MICROPY_BOARD_HOSTNAME_LENGTH);
self->cyw->hostname[MICROPY_BOARD_HOSTNAME_LENGTH - 1] = 0;
break;
}
#endif
default:
mp_raise_ValueError(MP_ERROR_TEXT("unknown config param"));
}
}
}
return mp_const_none;
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(network_cyw43_config_obj, 1, network_cyw43_config);
/*******************************************************************************/
// class bindings
STATIC const mp_rom_map_elem_t network_cyw43_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_send_ethernet), MP_ROM_PTR(&network_cyw43_send_ethernet_obj) },
{ MP_ROM_QSTR(MP_QSTR_ioctl), MP_ROM_PTR(&network_cyw43_ioctl_obj) },
{ MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&network_cyw43_deinit_obj) },
{ MP_ROM_QSTR(MP_QSTR_active), MP_ROM_PTR(&network_cyw43_active_obj) },
{ MP_ROM_QSTR(MP_QSTR_scan), MP_ROM_PTR(&network_cyw43_scan_obj) },
{ MP_ROM_QSTR(MP_QSTR_connect), MP_ROM_PTR(&network_cyw43_connect_obj) },
{ MP_ROM_QSTR(MP_QSTR_disconnect), MP_ROM_PTR(&network_cyw43_disconnect_obj) },
{ MP_ROM_QSTR(MP_QSTR_isconnected), MP_ROM_PTR(&network_cyw43_isconnected_obj) },
{ MP_ROM_QSTR(MP_QSTR_ifconfig), MP_ROM_PTR(&network_cyw43_ifconfig_obj) },
{ MP_ROM_QSTR(MP_QSTR_status), MP_ROM_PTR(&network_cyw43_status_obj) },
{ MP_ROM_QSTR(MP_QSTR_config), MP_ROM_PTR(&network_cyw43_config_obj) },
};
STATIC MP_DEFINE_CONST_DICT(network_cyw43_locals_dict, network_cyw43_locals_dict_table);
const mp_obj_type_t mp_network_cyw43_type = {
{ &mp_type_type },
.name = MP_QSTR_CYW43,
.print = network_cyw43_print,
.make_new = network_cyw43_make_new,
.locals_dict = (mp_obj_dict_t *)&network_cyw43_locals_dict,
};
#endif // MICROPY_PY_NETWORK_CYW43
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