nodemcu-firmware/components/modules/wifi_common.c

94 lines
3.1 KiB
C

/*
* Copyright (c) 2016 Johny Mattsson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
* - Neither the name of the copyright holders nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "wifi_common.h"
#include "ip_fmt.h"
#include "lauxlib.h"
#include <string.h>
// Important: match order of wifi_second_chan_t enum
const char *const wifi_second_chan_names[] =
{
STR_WIFI_SECOND_CHAN_NONE,
STR_WIFI_SECOND_CHAN_ABOVE,
STR_WIFI_SECOND_CHAN_BELOW,
};
int wifi_event_idx_by_name (const event_desc_t *table, unsigned n, const char *name)
{
for (unsigned i = 0; i < n; ++i)
if (strcmp (table[i].name, name) == 0)
return i;
return -1;
}
int wifi_event_idx_by_id (const event_desc_t *table, unsigned n, esp_event_base_t base, int32_t id)
{
for (unsigned i = 0; i < n; ++i)
if (*table[i].event_base_ptr == base && table[i].event_id == id)
return i;
return -1;
}
int wifi_on (lua_State *L, const event_desc_t *table, unsigned n, int *event_cb)
{
const char *event_name = luaL_checkstring (L, 1);
if (!lua_isnoneornil (L, 2))
luaL_checkanyfunction (L, 2);
lua_settop (L, 2);
int idx = wifi_event_idx_by_name (table, n, event_name);
if (idx < 0)
return luaL_error (L, "unknown event: %s", event_name);
luaL_unref (L, LUA_REGISTRYINDEX, event_cb[idx]);
event_cb[idx] = lua_isnoneornil (L, 2) ?
LUA_NOREF : luaL_ref (L, LUA_REGISTRYINDEX);
return 0;
}
int wifi_getmac (wifi_interface_t interface, lua_State *L)
{
uint8_t mac[6];
esp_err_t err = esp_wifi_get_mac(interface, mac);
if (err != ESP_OK)
return luaL_error (L, "failed to get mac, code %d", err);
char mac_str[MAC_STR_SZ];
macstr (mac_str, mac);
lua_pushstring (L, mac_str);
return 1;
}