micropython/ports/esp32/modnetwork.h

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2017 "Eric Poulsen" <eric@zyxod.com>
*
* 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.
*/
#ifndef MICROPY_INCLUDED_ESP32_MODNETWORK_H
#define MICROPY_INCLUDED_ESP32_MODNETWORK_H
#include "esp_netif.h"
enum { PHY_LAN8710, PHY_LAN8720, PHY_IP101, PHY_RTL8201, PHY_DP83848, PHY_KSZ8041, PHY_KSZ8081, PHY_KSZ8851SNL = 100, PHY_DM9051, PHY_W5500 };
#define IS_SPI_PHY(NUM) (NUM >= 100)
enum { ETH_INITIALIZED, ETH_STARTED, ETH_STOPPED, ETH_CONNECTED, ETH_DISCONNECTED, ETH_GOT_IP };
// Cases similar to ESP8266 user_interface.h
// Error cases are referenced from wifi_err_reason_t in ESP-IDF
enum {
STAT_IDLE = 1000,
STAT_CONNECTING = 1001,
STAT_GOT_IP = 1010,
};
typedef struct _base_if_obj_t {
mp_obj_base_t base;
esp_interface_t if_id;
esp_netif_t *netif;
volatile bool active;
} base_if_obj_t;
extern const mp_obj_type_t esp_network_wlan_type;
MP_DECLARE_CONST_FUN_OBJ_0(esp_network_initialize_obj);
MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(esp_network_get_wlan_obj);
MP_DECLARE_CONST_FUN_OBJ_KW(esp_network_get_lan_obj);
MP_DECLARE_CONST_FUN_OBJ_1(esp_network_ppp_make_new_obj);
MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(esp_network_ifconfig_obj);
MP_DECLARE_CONST_FUN_OBJ_KW(esp_network_config_obj);
MP_DECLARE_CONST_FUN_OBJ_VAR_BETWEEN(esp_network_phy_mode_obj);
esp32/modnetwork: Add support for SO_BINDTODEVICE socket option. This implements support for SO_BINDTODEVICE, which allows telling a socket to use a specific interface instead of lwIP automatically selecting one. This allows devices that have multiple connections (for example cellular over PPP in addition to WLAN) to explicitly choose which data is send over which connection, which may have different reliability and or (mobile data) costs associated with using them. The used lwIP network stack already has support for this, so all that was needed was to expose this functionality in MicroPython. This commit exposes a new constant SO_BINDTODEVICE which can be set as an socket option. As a value it expects the name of the interface to bind to. These names can be retrieved using `.config('ifname')` implemented on each interface type (including adding in this commit a `.config()` method to PPP, which it didn't have before), which returns a string with the interface name: >>> import machine >>> import network >>> network.WLAN(network.AP_IF).config('ifname') 'lo0' >>> wlan = network.WLAN(network.AP_IF) >>> wlan.active(True) and wlan.config('ifname') 'ap1' >>> wlan = network.WLAN(network.STA_IF) >>> wlan.active(True) and wlan.config('ifname') 'st1' >>> ppp = network.PPP(machine.UART(0)) >>> ppp.active(True) and ppp.config('ifname') 'pp1' >>> ppp = network.PPP(machine.UART(0)) >>> ppp.active(True) and ppp.config('ifname') 'pp2' >>> ppp = network.PPP(machine.UART(0)) >>> ppp.active(True) and ppp.config('ifname') 'pp3' Note that lo0 seems to be returned by lwIP if the interface is not yet active. The method can also return None in the case of PPP where the entire lwIP interface doesn't yet exist before being activated. Currently no effort is made to unify those cases; it is expected that whatever we receive from lwIP is valid. When the socket option is set, this forces using a specific device: import socket s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.setsockopt(socket.SOL_SOCKET, socket.SO_BINDTODEVICE, 'st1') setsockopt will throw (OSError: [Errno 19] ENODEV) if the specified interface does not exist. Tested with LAN, WLAN, and PPP; can specify which interface should be used and when testing with, for example, HTTP requests to ifconfig.co the returned IP address confirms a specific interface was used. Signed-off-by: Daniël van de Giessen <daniel@dvdgiessen.nl>
2023-07-04 13:36:37 +00:00
mp_obj_t esp_ifname(esp_netif_t *netif);
NORETURN void esp_exceptions_helper(esp_err_t e);
static inline void esp_exceptions(esp_err_t e) {
if (e != ESP_OK) {
esp_exceptions_helper(e);
}
}
void socket_events_deinit(void);
esp32,esp8266: Add support for the Espressif ESP-NOW protocol. ESP-NOW is a proprietary wireless communication protocol which supports connectionless communication between ESP32 and ESP8266 devices, using vendor specific WiFi frames. This commit adds support for this protocol through a new `espnow` module. This commit builds on original work done by @nickzoic, @shawwwn and with contributions from @zoland. Features include: - Use of (extended) ring buffers in py/ringbuf.[ch] for robust IO. - Signal strength (RSSI) monitoring. - Core support in `_espnow` C module, extended by `espnow.py` module. - Asyncio support via `aioespnow.py` module (separate to this commit). - Docs provided at `docs/library/espnow.rst`. Methods available in espnow.ESPNow class are: - active(True/False) - config(): set rx buffer size, read timeout and tx rate - recv()/irecv()/recvinto() to read incoming messages from peers - send() to send messages to peer devices - any() to test if a message is ready to read - irq() to set callback for received messages - stats() returns transfer stats: (tx_pkts, tx_pkt_responses, tx_failures, rx_pkts, lost_rx_pkts) - add_peer(mac, ...) registers a peer before sending messages - get_peer(mac) returns peer info: (mac, lmk, channel, ifidx, encrypt) - mod_peer(mac, ...) changes peer info parameters - get_peers() returns all peer info tuples - peers_table supports RSSI signal monitoring for received messages: {peer1: [rssi, time_ms], peer2: [rssi, time_ms], ...} ESP8266 is a pared down version of the ESP32 ESPNow support due to code size restrictions and differences in the low-level API. See docs for details. Also included is a test suite in tests/multi_espnow. This tests basic espnow data transfer, multiple transfers, various message sizes, encrypted messages (pmk and lmk), and asyncio support. Initial work is from https://github.com/micropython/micropython/pull/4115. Initial import of code is from: https://github.com/nickzoic/micropython/tree/espnow-4115.
2020-09-24 05:37:04 +00:00
void esp_initialise_wifi(void);
#endif