5  * SPDX-License-Identifier: Apache-2.0
73 	cmd[sizeof(cmd) - 1] = '\0';  in esp_configure_hostname()
83 	uint8_t flags = data->flags;  in esp_mode_from_flags()
111 	cmd[sizeof(cmd) - 2] = ('0' + mode);  in esp_mode_switch()
125 	uint8_t old_mode = data->mode;  in esp_mode_switch_if_needed()
132 	data->mode = new_mode;  in esp_mode_switch_if_needed()
151 	if (data->mode != esp_mode_from_flags(data)) {  in esp_mode_switch_submit_if_needed()
152 		k_work_submit_to_queue(&data->workq, &data->mode_switch_work);  in esp_mode_switch_submit_if_needed()
189 	k_sem_give(&dev->sem_response);  in MODEM_CMD_DEFINE()
200 	modem_cmd_handler_set_error(data, -EIO);  in MODEM_CMD_DEFINE()
201 	k_sem_give(&dev->sem_response);  in MODEM_CMD_DEFINE()
216 		modem_iface_uart_rx_wait(&data->mctx.iface, K_FOREVER);  in esp_rx()
218 		modem_cmd_handler_process(&data->mctx.cmd_handler, &data->mctx.iface);  in esp_rx()
248 	char *mac;  in MODEM_CMD_DEFINE()  local
251 	mac = str_unquote(argv[0]);  in MODEM_CMD_DEFINE()
252 	err = net_bytes_from_str(dev->mac_addr, sizeof(dev->mac_addr), mac);  in MODEM_CMD_DEFINE()
254 		LOG_ERR("Failed to parse MAC address");  in MODEM_CMD_DEFINE()
263 		return -EAGAIN;  in esp_pull_quoted()
285 	return -EAGAIN;  in esp_pull_quoted()
306 	return -EAGAIN;  in esp_pull()
330 		return -EBADMSG;  in esp_pull_long()
337 /* with: CONFIG_WIFI_ESP_AT_SCAN_MAC_ADDRESS: +CWLAP:<ecn>,<ssid>,<rssi>,<mac>,<ch>*/
343 	char cwlap_buf[sizeof("\"0\",\"\",-100,\"xx:xx:xx:xx:xx:xx\",12") +  in MODEM_CMD_DIRECT_DEFINE()
347 	char *mac;  in MODEM_CMD_DIRECT_DEFINE()  local
353 	len = net_buf_linearize(cwlap_buf, sizeof(cwlap_buf) - 1,  in MODEM_CMD_DIRECT_DEFINE()
354 				data->rx_buf, 0, sizeof(cwlap_buf) - 1);  in MODEM_CMD_DIRECT_DEFINE()
357 	char *str = &cwlap_buf[sizeof("+CWJAP:(") - 1];  in MODEM_CMD_DIRECT_DEFINE()
383 		return -EBADMSG;  in MODEM_CMD_DIRECT_DEFINE()
392 		err = esp_pull_quoted(&str, str_end, &mac);  in MODEM_CMD_DIRECT_DEFINE()
398 		if (net_bytes_from_str(res.mac, sizeof(res.mac), mac) < 0) {  in MODEM_CMD_DIRECT_DEFINE()
399 			LOG_ERR("Invalid MAC address");  in MODEM_CMD_DIRECT_DEFINE()
411 	if (dev->scan_cb) {  in MODEM_CMD_DIRECT_DEFINE()
412 		dev->scan_cb(dev->net_iface, 0, &res);  in MODEM_CMD_DIRECT_DEFINE()
415 	return str - cwlap_buf;  in MODEM_CMD_DIRECT_DEFINE()
423 	struct wifi_iface_status *status = dev->wifi_status;  in MODEM_CMD_DIRECT_DEFINE()
424 	char cwjap_buf[sizeof("\"\",\"xx:xx:xx:xx:xx:xx\",12,-100") +  in MODEM_CMD_DIRECT_DEFINE()
426 	uint8_t flags = dev->flags;  in MODEM_CMD_DIRECT_DEFINE()
433 	len = net_buf_linearize(cwjap_buf, sizeof(cwjap_buf) - 1,  in MODEM_CMD_DIRECT_DEFINE()
434 				data->rx_buf, 0, sizeof(cwjap_buf) - 1);  in MODEM_CMD_DIRECT_DEFINE()
437 	char *str = &cwjap_buf[sizeof("+CWJAP:") - 1];  in MODEM_CMD_DIRECT_DEFINE()
440 	status->band = WIFI_FREQ_BAND_2_4_GHZ;  in MODEM_CMD_DIRECT_DEFINE()
441 	status->iface_mode = WIFI_MODE_INFRA;  in MODEM_CMD_DIRECT_DEFINE()
444 		status->state = WIFI_STATE_COMPLETED;  in MODEM_CMD_DIRECT_DEFINE()
446 		status->state = WIFI_STATE_SCANNING;  in MODEM_CMD_DIRECT_DEFINE()
448 		status->state = WIFI_STATE_DISCONNECTED;  in MODEM_CMD_DIRECT_DEFINE()
471 	strncpy(status->ssid, ssid, sizeof(status->ssid));  in MODEM_CMD_DIRECT_DEFINE()
472 	status->ssid_len = strnlen(status->ssid, sizeof(status->ssid));  in MODEM_CMD_DIRECT_DEFINE()
474 	err = net_bytes_from_str(status->bssid, sizeof(status->bssid), bssid);  in MODEM_CMD_DIRECT_DEFINE()
476 		LOG_WRN("Invalid MAC address");  in MODEM_CMD_DIRECT_DEFINE()
477 		memset(status->bssid, 0x0, sizeof(status->bssid));  in MODEM_CMD_DIRECT_DEFINE()
480 	status->channel = strtol(channel, NULL, 10);  in MODEM_CMD_DIRECT_DEFINE()
481 	status->rssi = strtol(rssi, NULL, 10);  in MODEM_CMD_DIRECT_DEFINE()
483 	return str - cwjap_buf;  in MODEM_CMD_DIRECT_DEFINE()
491 	struct sockaddr_in *addrs = data->dns_addresses;  in esp_dns_work()
519 	struct sockaddr_in *addrs = dev->dns_addresses;  in MODEM_CMD_DEFINE()
521 	size_t num_servers = argc - 1;  in MODEM_CMD_DEFINE()
537 			LOG_ERR("Invalid DNS address: %s",  in MODEM_CMD_DEFINE()
550 		k_work_submit(&dev->dns_work);  in MODEM_CMD_DEFINE()
572 	wifi_mgmt_raise_connect_result_event(dev->net_iface, 0);  in MODEM_CMD_DEFINE()
573 	net_if_dormant_off(dev->net_iface);  in MODEM_CMD_DEFINE()
586 	for (int i = 0; i < ARRAY_SIZE(dev->sockets); i++) {  in esp_mgmt_disconnect_work()
587 		sock = &dev->sockets[i];  in esp_mgmt_disconnect_work()
598 	net_if_ipv4_addr_rm(dev->net_iface, &dev->ip);  in esp_mgmt_disconnect_work()
601 		net_if_dormant_on(dev->net_iface);  in esp_mgmt_disconnect_work()
603 	wifi_mgmt_raise_disconnect_result_event(dev->net_iface, 0);  in esp_mgmt_disconnect_work()
612 		k_work_submit_to_queue(&dev->workq, &dev->disconnect_work);  in MODEM_CMD_DEFINE()
632 		net_addr_pton(AF_INET, ip, &dev->ip);  in MODEM_CMD_DEFINE()
634 		net_addr_pton(AF_INET, ip, &dev->gw);  in MODEM_CMD_DEFINE()
636 		net_addr_pton(AF_INET, ip, &dev->nm);  in MODEM_CMD_DEFINE()
662 		k_work_reschedule_for_queue(&dev->workq, &dev->ip_addr_work,  in esp_ip_addr_work()
670 	net_if_ipv4_addr_add(dev->net_iface, &dev->ip, NET_ADDR_MANUAL, 0);  in esp_ip_addr_work()
672 	net_if_ipv4_addr_add(dev->net_iface, &dev->ip, NET_ADDR_DHCP, 0);  in esp_ip_addr_work()
674 	net_if_ipv4_set_gw(dev->net_iface, &dev->gw);  in esp_ip_addr_work()
675 	net_if_ipv4_set_netmask_by_addr(dev->net_iface, &dev->ip, &dev->nm);  in esp_ip_addr_work()
692 	k_work_reschedule_for_queue(&dev->workq, &dev->ip_addr_work,  in MODEM_CMD_DEFINE()
704 	link_id = data->match_buf[0] - '0';  in MODEM_CMD_DEFINE()
725 	link_id = data->match_buf[0] - '0';  in MODEM_CMD_DEFINE()
745 		esp_socket_work_submit(sock, &sock->close_work);  in MODEM_CMD_DEFINE()
758 #define MIN_IPD_LEN (sizeof("+IPD,I,0E") - 1)
759 #define MAX_IPD_LEN (sizeof("+IPD,I,4294967295,\"\",65535E") - 1) + NET_IPV4_ADDR_LEN
778 		return -EAGAIN;  in cmd_ipd_parse_hdr()
787 		return -EBADMSG;  in cmd_ipd_parse_hdr()
795 		if (err == -EAGAIN && match_len >= MAX_IPD_LEN) {  in cmd_ipd_parse_hdr()
797 			return -EBADMSG;  in cmd_ipd_parse_hdr()
805 		if (err == -EAGAIN && match_len >= MAX_IPD_LEN) {  in cmd_ipd_parse_hdr()
807 			return -EBADMSG;  in cmd_ipd_parse_hdr()
817 		*data_offset = (str - ipd_buf);  in cmd_ipd_parse_hdr()
818 		return -ENOTCONN;  in cmd_ipd_parse_hdr()
824 			(struct sockaddr_in *) &(*sock)->context->remote;  in cmd_ipd_parse_hdr()
830 			if (err == -EAGAIN && match_len >= MAX_IPD_LEN) {  in cmd_ipd_parse_hdr()
832 				err = -EBADMSG;  in cmd_ipd_parse_hdr()
839 			if (err == -EAGAIN && match_len >= MAX_IPD_LEN) {  in cmd_ipd_parse_hdr()
841 				err = -EBADMSG;  in cmd_ipd_parse_hdr()
846 		err = net_addr_pton(AF_INET, remote_ip, &recv_addr->sin_addr);  in cmd_ipd_parse_hdr()
848 			LOG_ERR("Invalid IP address");  in cmd_ipd_parse_hdr()
849 			err = -EBADMSG;  in cmd_ipd_parse_hdr()
853 		recv_addr->sin_family = AF_INET;  in cmd_ipd_parse_hdr()
854 		recv_addr->sin_port = htons(port);  in cmd_ipd_parse_hdr()
857 	*data_offset = (str - ipd_buf);  in cmd_ipd_parse_hdr()
877 	err = cmd_ipd_parse_hdr(dev, &sock, data->rx_buf, len,  in MODEM_CMD_DIRECT_DEFINE()
880 		if (err == -EAGAIN) {  in MODEM_CMD_DIRECT_DEFINE()
881 			return -EAGAIN;  in MODEM_CMD_DIRECT_DEFINE()
892 		esp_socket_work_submit(sock, &sock->recvdata_work);  in MODEM_CMD_DIRECT_DEFINE()
898 	if (data_offset + data_len > net_buf_frags_len(data->rx_buf)) {  in MODEM_CMD_DIRECT_DEFINE()
899 		ret = -EAGAIN;  in MODEM_CMD_DIRECT_DEFINE()
903 	esp_socket_rx(sock, data->rx_buf, data_offset, data_len);  in MODEM_CMD_DIRECT_DEFINE()
933 	k_sem_give(&dev->sem_if_ready);  in MODEM_CMD_DEFINE()
936 	if (net_if_is_carrier_ok(dev->net_iface)) {  in MODEM_CMD_DEFINE()
937 		net_if_dormant_on(dev->net_iface);  in MODEM_CMD_DEFINE()
938 		net_if_carrier_off(dev->net_iface);  in MODEM_CMD_DEFINE()
943 		wifi_mgmt_raise_connect_result_event(dev->net_iface, -1);  in MODEM_CMD_DEFINE()
945 		wifi_mgmt_raise_disconnect_result_event(dev->net_iface, 0);  in MODEM_CMD_DEFINE()
948 	dev->flags = 0;  in MODEM_CMD_DEFINE()
949 	dev->mode = 0;  in MODEM_CMD_DEFINE()
952 	net_if_ipv4_addr_rm(dev->net_iface, &dev->ip);  in MODEM_CMD_DEFINE()
954 	k_work_submit_to_queue(&dev->workq, &dev->init_work);  in MODEM_CMD_DEFINE()
1020 	struct wifi_iface_status *status = data->wifi_status;  in esp_mgmt_iface_status_work()
1030 		status->state = WIFI_STATE_UNKNOWN;  in esp_mgmt_iface_status_work()
1033 	k_sem_give(&data->wifi_status_sem);  in esp_mgmt_iface_status_work()
1039 	struct esp_data *data = dev->data;  in esp_mgmt_iface_status()
1043 	status->state = WIFI_STATE_UNKNOWN;  in esp_mgmt_iface_status()
1044 	status->band = WIFI_FREQ_BAND_UNKNOWN;  in esp_mgmt_iface_status()
1045 	status->iface_mode = WIFI_MODE_UNKNOWN;  in esp_mgmt_iface_status()
1046 	status->link_mode = WIFI_LINK_MODE_UNKNOWN;  in esp_mgmt_iface_status()
1047 	status->security = WIFI_SECURITY_TYPE_UNKNOWN;  in esp_mgmt_iface_status()
1048 	status->mfp = WIFI_MFP_UNKNOWN;  in esp_mgmt_iface_status()
1050 	if (!net_if_is_carrier_ok(data->net_iface)) {  in esp_mgmt_iface_status()
1051 		status->state = WIFI_STATE_INTERFACE_DISABLED;  in esp_mgmt_iface_status()
1055 	data->wifi_status = status;  in esp_mgmt_iface_status()
1056 	k_sem_init(&data->wifi_status_sem, 0, 1);  in esp_mgmt_iface_status()
1058 	k_work_submit_to_queue(&data->workq, &data->iface_status_work);  in esp_mgmt_iface_status()
1060 	k_sem_take(&data->wifi_status_sem, K_FOREVER);  in esp_mgmt_iface_status()
1084 	LOG_DBG("ESP Wi-Fi scan: cmd = %s", ESP_CMD_CWLAP);  in esp_mgmt_scan_work()
1091 	dev->scan_cb(dev->net_iface, 0, NULL);  in esp_mgmt_scan_work()
1092 	dev->scan_cb = NULL;  in esp_mgmt_scan_work()
1099 	struct esp_data *data = dev->data;  in esp_mgmt_scan()
1103 	if (data->scan_cb != NULL) {  in esp_mgmt_scan()
1104 		return -EINPROGRESS;  in esp_mgmt_scan()
1107 	if (!net_if_is_carrier_ok(data->net_iface)) {  in esp_mgmt_scan()
1108 		return -EIO;  in esp_mgmt_scan()
1111 	data->scan_cb = cb;  in esp_mgmt_scan()
1113 	k_work_submit_to_queue(&data->workq, &data->scan_work);  in esp_mgmt_scan()
1123 	modem_cmd_handler_set_error(data, -EIO);  in MODEM_CMD_DEFINE()
1124 	k_sem_give(&dev->sem_response);  in MODEM_CMD_DEFINE()
1144 	ret = esp_cmd_send(dev, cmds, ARRAY_SIZE(cmds), dev->conn_cmd,  in esp_mgmt_connect_work()
1147 	memset(dev->conn_cmd, 0, sizeof(dev->conn_cmd));  in esp_mgmt_connect_work()
1150 		net_if_dormant_on(dev->net_iface);  in esp_mgmt_connect_work()
1153 			wifi_mgmt_raise_disconnect_result_event(dev->net_iface,  in esp_mgmt_connect_work()
1156 			wifi_mgmt_raise_connect_result_event(dev->net_iface,  in esp_mgmt_connect_work()
1161 		wifi_mgmt_raise_connect_result_event(dev->net_iface, 0);  in esp_mgmt_connect_work()
1162 		net_if_dormant_off(dev->net_iface);  in esp_mgmt_connect_work()
1174 	char *str_end = &data->conn_cmd[sizeof(data->conn_cmd)];  in esp_conn_cmd_append()
1175 	char *str = &data->conn_cmd[*off];  in esp_conn_cmd_append()
1179 		if (str_end - str < 1) {  in esp_conn_cmd_append()
1180 			return -ENOSPC;  in esp_conn_cmd_append()
1187 	*off = str - data->conn_cmd;  in esp_conn_cmd_append()
1193 	esp_conn_cmd_append(data, off, chunk, sizeof(chunk) - 1)
1198 	char *str_end = &data->conn_cmd[sizeof(data->conn_cmd)];  in esp_conn_cmd_escape_and_append()
1199 	char *str = &data->conn_cmd[*off];  in esp_conn_cmd_escape_and_append()
1207 			if (str_end - str < 2) {  in esp_conn_cmd_escape_and_append()
1208 				return -ENOSPC;  in esp_conn_cmd_escape_and_append()
1217 		if (str_end - str < 1) {  in esp_conn_cmd_escape_and_append()
1218 			return -ENOSPC;  in esp_conn_cmd_escape_and_append()
1225 	*off = str - data->conn_cmd;  in esp_conn_cmd_escape_and_append()
1233 	struct esp_data *data = dev->data;  in esp_mgmt_connect()
1237 	if (!net_if_is_carrier_ok(data->net_iface) ||  in esp_mgmt_connect()
1238 	    !net_if_is_admin_up(data->net_iface)) {  in esp_mgmt_connect()
1239 		return -EIO;  in esp_mgmt_connect()
1243 		return -EALREADY;  in esp_mgmt_connect()
1254 					     params->ssid, params->ssid_length);  in esp_mgmt_connect()
1264 	if (params->security == WIFI_SECURITY_TYPE_PSK) {  in esp_mgmt_connect()
1266 						     params->psk, params->psk_length);  in esp_mgmt_connect()
1277 	k_work_submit_to_queue(&data->workq, &data->connect_work);  in esp_mgmt_connect()
1284 	struct esp_data *data = dev->data;  in esp_mgmt_disconnect()
1297 	struct esp_data *data = dev->data;  in esp_mgmt_ap_enable()
1307 	memcpy(&cmd[len], params->ssid, params->ssid_length);  in esp_mgmt_ap_enable()
1308 	len += params->ssid_length;  in esp_mgmt_ap_enable()
1310 	if (params->security == WIFI_SECURITY_TYPE_PSK) {  in esp_mgmt_ap_enable()
1311 		len += snprintk(&cmd[len], sizeof(cmd) - len, "\",\"");  in esp_mgmt_ap_enable()
1312 		memcpy(&cmd[len], params->psk, params->psk_length);  in esp_mgmt_ap_enable()
1313 		len += params->psk_length;  in esp_mgmt_ap_enable()
1316 		len += snprintk(&cmd[len], sizeof(cmd) - len, "\",\"");  in esp_mgmt_ap_enable()
1319 	snprintk(&cmd[len], sizeof(cmd) - len, "\",%d,%d", params->channel,  in esp_mgmt_ap_enable()
1324 	net_if_dormant_off(data->net_iface);  in esp_mgmt_ap_enable()
1331 	struct esp_data *data = dev->data;  in esp_mgmt_ap_disable()
1334 		net_if_dormant_on(data->net_iface);  in esp_mgmt_ap_disable()
1393 	ret = modem_cmd_handler_setup_cmds(&dev->mctx.iface,  in esp_init_work()
1394 					   &dev->mctx.cmd_handler, setup_cmds,  in esp_init_work()
1396 					   &dev->sem_response,  in esp_init_work()
1422 	ret = modem_cmd_handler_setup_cmds(&dev->mctx.iface,  in esp_init_work()
1423 				&dev->mctx.cmd_handler,  in esp_init_work()
1426 				&dev->sem_response,  in esp_init_work()
1434 	net_if_set_link_addr(dev->net_iface, dev->mac_addr,  in esp_init_work()
1435 			     sizeof(dev->mac_addr), NET_LINK_ETHERNET);  in esp_init_work()
1439 		dev->mode = ESP_MODE_STA;  in esp_init_work()
1448 	LOG_INF("ESP Wi-Fi ready");  in esp_init_work()
1451 	net_if_carrier_on(dev->net_iface);  in esp_init_work()
1453 	k_sem_give(&dev->sem_if_up);  in esp_init_work()
1458 	struct esp_data *data = dev->data;  in esp_reset()
1459 	int ret = -EAGAIN;  in esp_reset()
1461 	if (net_if_is_carrier_ok(data->net_iface)) {  in esp_reset()
1462 		net_if_carrier_off(data->net_iface);  in esp_reset()
1466 	const struct esp_config *config = dev->config;  in esp_reset()
1468 	gpio_pin_set_dt(&config->power, 0);  in esp_reset()
1470 	gpio_pin_set_dt(&config->power, 1);  in esp_reset()
1472 	const struct esp_config *config = dev->config;  in esp_reset()
1474 	gpio_pin_set_dt(&config->reset, 1);  in esp_reset()
1476 	gpio_pin_set_dt(&config->reset, 0);  in esp_reset()
1480 	ret = k_sem_take(&data->sem_if_ready, K_MSEC(CONFIG_WIFI_ESP_AT_RESET_TIMEOUT));  in esp_reset()
1485 	while ((ret != 0) && retries--) {  in esp_reset()
1486 		ret = modem_cmd_send(&data->mctx.iface, &data->mctx.cmd_handler,  in esp_reset()
1487 				     NULL, 0, "AT+RST", &data->sem_if_ready,  in esp_reset()
1489 		if (ret == 0 || ret != -ETIMEDOUT) {  in esp_reset()
1496 		return -EAGAIN;  in esp_reset()
1501 	ret = k_sem_take(&data->sem_if_up, ESP_INIT_TIMEOUT);  in esp_reset()
1502 	if (ret == -EAGAIN) {  in esp_reset()
1553 	const struct esp_config *config = dev->config;  in esp_init()
1555 	struct esp_data *data = dev->data;  in esp_init()
1558 	k_sem_init(&data->sem_tx_ready, 0, 1);  in esp_init()
1559 	k_sem_init(&data->sem_response, 0, 1);  in esp_init()
1560 	k_sem_init(&data->sem_if_ready, 0, 1);  in esp_init()
1561 	k_sem_init(&data->sem_if_up, 0, 1);  in esp_init()
1563 	k_work_init(&data->init_work, esp_init_work);  in esp_init()
1564 	k_work_init_delayable(&data->ip_addr_work, esp_ip_addr_work);  in esp_init()
1565 	k_work_init(&data->scan_work, esp_mgmt_scan_work);  in esp_init()
1566 	k_work_init(&data->connect_work, esp_mgmt_connect_work);  in esp_init()
1567 	k_work_init(&data->disconnect_work, esp_mgmt_disconnect_work);  in esp_init()
1568 	k_work_init(&data->iface_status_work, esp_mgmt_iface_status_work);  in esp_init()
1569 	k_work_init(&data->mode_switch_work, esp_mode_switch_work);  in esp_init()
1571 		k_work_init(&data->dns_work, esp_dns_work);  in esp_init()
1577 	k_work_queue_start(&data->workq, esp_workq_stack,  in esp_init()
1581 	k_thread_name_set(&data->workq.thread, "esp_workq");  in esp_init()
1585 		.match_buf = &data->cmd_match_buf[0],  in esp_init()
1586 		.match_buf_len = sizeof(data->cmd_match_buf),  in esp_init()
1597 	ret = modem_cmd_handler_init(&data->mctx.cmd_handler, &data->cmd_handler_data,  in esp_init()
1605 		.rx_rb_buf = &data->iface_rb_buf[0],  in esp_init()
1606 		.rx_rb_buf_len = sizeof(data->iface_rb_buf),  in esp_init()
1612 	data->mctx.driver_data = data;  in esp_init()
1613 	ret = modem_context_register(&data->mctx);  in esp_init()
1619 	ret = modem_iface_uart_init(&data->mctx.iface, &data->iface_data, &uart_config);  in esp_init()
1626 	ret = gpio_pin_configure_dt(&config->power, GPIO_OUTPUT_INACTIVE);  in esp_init()
1633 	ret = gpio_pin_configure_dt(&config->reset, GPIO_OUTPUT_INACTIVE);  in esp_init()
1650 	data->net_iface = NET_IF_GET(Z_DEVICE_DT_DEV_ID(DT_DRV_INST(0)), 0);  in esp_init()