324 lines
10 KiB
C
324 lines
10 KiB
C
/*
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* Copyright 2016 Dius Computing Pty Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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* - Neither the name of the copyright holders nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @author Johny Mattsson <jmattsson@dius.com.au>
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*/
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#include "module.h"
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#include "lauxlib.h"
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#include "lextra.h"
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#include "esp_wifi.h"
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#include "wifi_common.h"
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#include "ip_fmt.h"
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#include "nodemcu_esp_event.h"
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#include <string.h>
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typedef void (*fill_cb_arg_fn) (lua_State *L, const system_event_t *evt);
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typedef struct
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{
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const char *name;
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system_event_id_t event_id;
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fill_cb_arg_fn fill_cb_arg;
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} event_desc_t;
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// Forward declarations
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static void on_event (const system_event_t *evt);
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static void sta_conn (lua_State *L, const system_event_t *evt);
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static void sta_disconn (lua_State *L, const system_event_t *evt);
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static void sta_authmode (lua_State *L, const system_event_t *evt);
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static void sta_got_ip (lua_State *L, const system_event_t *evt);
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static void ap_staconn (lua_State *L, const system_event_t *evt);
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static void ap_stadisconn (lua_State *L, const system_event_t *evt);
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static void ap_probe_req (lua_State *L, const system_event_t *evt);
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static void empty_arg (lua_State *L, const system_event_t *evt) {}
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static const event_desc_t events[] =
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{
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{ "sta_start", SYSTEM_EVENT_STA_START, empty_arg },
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{ "sta_stop", SYSTEM_EVENT_STA_STOP, empty_arg },
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{ "sta_connected", SYSTEM_EVENT_STA_CONNECTED, sta_conn },
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{ "sta_disconnected", SYSTEM_EVENT_STA_DISCONNECTED, sta_disconn },
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{ "sta_authmode_changed", SYSTEM_EVENT_STA_AUTHMODE_CHANGE, sta_authmode },
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{ "sta_got_ip", SYSTEM_EVENT_STA_GOT_IP, sta_got_ip },
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{ "ap_start", SYSTEM_EVENT_AP_START, empty_arg },
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{ "ap_stop", SYSTEM_EVENT_AP_STOP, empty_arg },
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{ "ap_sta_connected", SYSTEM_EVENT_AP_STACONNECTED, ap_staconn },
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{ "ap_sta_disconnected", SYSTEM_EVENT_AP_STADISCONNECTED, ap_stadisconn },
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{ "ap_probe_req", SYSTEM_EVENT_AP_PROBEREQRECVED, ap_probe_req }
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};
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#define ARRAY_LEN(a) (sizeof(a) / sizeof(a[0]))
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static int event_cb[ARRAY_LEN(events)];
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NODEMCU_ESP_EVENT(SYSTEM_EVENT_STA_START, on_event);
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NODEMCU_ESP_EVENT(SYSTEM_EVENT_STA_STOP, on_event);
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NODEMCU_ESP_EVENT(SYSTEM_EVENT_STA_CONNECTED, on_event);
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NODEMCU_ESP_EVENT(SYSTEM_EVENT_STA_DISCONNECTED, on_event);
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NODEMCU_ESP_EVENT(SYSTEM_EVENT_STA_AUTHMODE_CHANGE, on_event);
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NODEMCU_ESP_EVENT(SYSTEM_EVENT_STA_GOT_IP, on_event);
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NODEMCU_ESP_EVENT(SYSTEM_EVENT_AP_START, on_event);
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NODEMCU_ESP_EVENT(SYSTEM_EVENT_AP_STOP, on_event);
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NODEMCU_ESP_EVENT(SYSTEM_EVENT_AP_STACONNECTED, on_event);
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NODEMCU_ESP_EVENT(SYSTEM_EVENT_AP_STADISCONNECTED, on_event);
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NODEMCU_ESP_EVENT(SYSTEM_EVENT_AP_PROBEREQRECVED, on_event);
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static int wifi_getmode (lua_State *L)
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{
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wifi_mode_t mode;
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esp_err_t err = esp_wifi_get_mode (&mode);
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if (err != ESP_OK)
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return luaL_error (L, "failed to get mode, code %d", err);
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lua_pushinteger (L, mode);
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return 1;
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}
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static int event_idx_by_name (const char *name)
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{
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for (unsigned i = 0; i < ARRAY_LEN(events); ++i)
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if (strcmp (events[i].name, name) == 0)
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return i;
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return -1;
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}
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static int event_idx_by_id (system_event_id_t id)
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{
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for (unsigned i = 0; i < ARRAY_LEN(events); ++i)
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if (events[i].event_id == id)
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return i;
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return -1;
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}
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static void sta_conn (lua_State *L, const system_event_t *evt)
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{
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lua_pushlstring (L,
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(const char *)evt->event_info.connected.ssid,
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evt->event_info.connected.ssid_len);
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lua_setfield (L, -2, "ssid");
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char bssid_str[MAC_STR_SZ];
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macstr (bssid_str, evt->event_info.connected.bssid);
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lua_pushstring (L, bssid_str);
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lua_setfield (L, -2, "bssid");
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lua_pushinteger (L, evt->event_info.connected.channel);
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lua_setfield (L, -2, "channel");
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lua_pushinteger (L, evt->event_info.connected.authmode);
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lua_setfield (L, -2, "auth");
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}
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static void sta_disconn (lua_State *L, const system_event_t *evt)
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{
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lua_pushlstring (L,
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(const char *)evt->event_info.disconnected.ssid,
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evt->event_info.disconnected.ssid_len);
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lua_setfield (L, -2, "ssid");
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char bssid_str[MAC_STR_SZ];
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macstr (bssid_str, evt->event_info.disconnected.bssid);
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lua_pushstring (L, bssid_str);
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lua_setfield (L, -2, "bssid");
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lua_pushinteger (L, evt->event_info.disconnected.reason);
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lua_setfield (L, -2, "reason");
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}
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static void sta_authmode (lua_State *L, const system_event_t *evt)
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{
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lua_pushinteger (L, evt->event_info.auth_change.old_mode);
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lua_setfield (L, -2, "old_mode");
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lua_pushinteger (L, evt->event_info.auth_change.new_mode);
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lua_setfield (L, -2, "new_mode");
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}
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static void sta_got_ip (lua_State *L, const system_event_t *evt)
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{
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char ipstr[IP_STR_SZ] = { 0 };
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ip4str (ipstr, &evt->event_info.got_ip.ip_info.ip);
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lua_pushstring (L, ipstr);
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lua_setfield (L, -2, "ip");
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ip4str (ipstr, &evt->event_info.got_ip.ip_info.netmask);
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lua_pushstring (L, ipstr);
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lua_setfield (L, -2, "netmask");
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ip4str (ipstr, &evt->event_info.got_ip.ip_info.gw);
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lua_pushstring (L, ipstr);
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lua_setfield (L, -2, "gw");
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}
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static void ap_staconn (lua_State *L, const system_event_t *evt)
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{
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char mac[MAC_STR_SZ];
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macstr (mac, evt->event_info.sta_connected.mac);
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lua_pushstring (L, mac);
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lua_setfield (L, -2, "mac");
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lua_pushinteger (L, evt->event_info.sta_connected.aid);
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lua_setfield (L, -2, "id");
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}
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static void ap_stadisconn (lua_State *L, const system_event_t *evt)
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{
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char mac[MAC_STR_SZ];
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macstr (mac, evt->event_info.sta_disconnected.mac);
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lua_pushstring (L, mac);
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lua_setfield (L, -2, "mac");
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lua_pushinteger (L, evt->event_info.sta_disconnected.aid);
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lua_setfield (L, -2, "id");
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}
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static void ap_probe_req (lua_State *L, const system_event_t *evt)
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{
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char str[MAC_STR_SZ];
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macstr (str, evt->event_info.ap_probereqrecved.mac);
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lua_pushstring (L, str);
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lua_setfield (L, -2, "from");
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lua_pushinteger (L, evt->event_info.ap_probereqrecved.rssi);
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lua_setfield (L, -2, "rssi");
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}
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static void on_event (const system_event_t *evt)
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{
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int idx = event_idx_by_id (evt->event_id);
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if (idx < 0 || event_cb[idx] == LUA_NOREF)
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return;
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lua_State *L = lua_getstate ();
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lua_rawgeti (L, LUA_REGISTRYINDEX, event_cb[idx]);
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lua_pushstring (L, events[idx].name);
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lua_createtable (L, 0, 5);
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events[idx].fill_cb_arg (L, evt);
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lua_call (L, 2, 0);
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}
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static int wifi_eventmon (lua_State *L)
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{
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const char *event_name = luaL_checkstring (L, 1);
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if (!lua_isnoneornil (L, 2))
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luaL_checkanyfunction (L, 2);
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lua_settop (L, 2);
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int idx = event_idx_by_name (event_name);
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if (idx < 0)
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return luaL_error (L, "unknown event: %s", event_name);
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luaL_unref (L, LUA_REGISTRYINDEX, event_cb[idx]);
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event_cb[idx] = lua_isnoneornil (L, 2) ?
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LUA_NOREF : luaL_ref (L, LUA_REGISTRYINDEX);
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return 0;
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}
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static int wifi_mode (lua_State *L)
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{
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int mode = luaL_checkinteger (L, 1);
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bool save = luaL_optbool (L, 2, DEFAULT_SAVE);
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SET_SAVE_MODE(save);
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esp_err_t err;
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switch (mode)
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{
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case WIFI_MODE_NULL:
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case WIFI_MODE_STA:
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case WIFI_MODE_AP:
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case WIFI_MODE_APSTA:
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return ((err = esp_wifi_set_mode (mode)) == ESP_OK) ?
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0 : luaL_error (L, "failed to set mode, code %d", err);
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default:
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return luaL_error (L, "invalid wifi mode %d", mode);
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}
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}
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static int wifi_start (lua_State *L)
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{
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esp_err_t err = esp_wifi_start ();
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return (err == ESP_OK) ?
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0 : luaL_error(L, "failed to start wifi, code %d", err);
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}
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static int wifi_stop (lua_State *L)
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{
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esp_err_t err = esp_wifi_stop ();
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return (err == ESP_OK) ?
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0 : luaL_error (L, "failed to stop wifi, code %d", err);
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}
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static int wifi_init (lua_State *L)
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{
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for (unsigned i = 0; i < ARRAY_LEN(event_cb); ++i)
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event_cb[i] = LUA_NOREF;
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wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
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esp_err_t err = esp_wifi_init (&cfg);
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return (err == ESP_OK) ?
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0 : luaL_error (L, "failed to init wifi, code %d", err);
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}
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extern const LUA_REG_TYPE wifi_sta_map[];
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extern const LUA_REG_TYPE wifi_ap_map[];
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static const LUA_REG_TYPE wifi_map[] =
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{
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{ LSTRKEY( "getmode" ), LFUNCVAL( wifi_getmode ) },
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{ LSTRKEY( "on" ), LFUNCVAL( wifi_eventmon ) },
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{ LSTRKEY( "mode" ), LFUNCVAL( wifi_mode ) },
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{ LSTRKEY( "start" ), LFUNCVAL( wifi_start ) },
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{ LSTRKEY( "stop" ), LFUNCVAL( wifi_stop ) },
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{ LSTRKEY( "sta" ), LROVAL( wifi_sta_map ) },
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{ LSTRKEY( "ap" ), LROVAL( wifi_ap_map ) },
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{ LSTRKEY( "NULLMODE" ), LNUMVAL( WIFI_MODE_NULL ) },
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{ LSTRKEY( "STATION" ), LNUMVAL( WIFI_MODE_STA ) },
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{ LSTRKEY( "SOFTAP" ), LNUMVAL( WIFI_MODE_AP ) },
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{ LSTRKEY( "STATIONAP" ), LNUMVAL( WIFI_MODE_APSTA ) },
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{ LNILKEY, LNILVAL }
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};
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NODEMCU_MODULE(WIFI, "wifi", wifi_map, wifi_init);
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