nodemcu-firmware/app/modules/adc.c

72 lines
1.3 KiB
C

// Module for interfacing with adc
//#include "lua.h"
#include "lualib.h"
#include "lauxlib.h"
#include "platform.h"
#include "auxmods.h"
#include "lrotable.h"
#include "c_types.h"
#include "user_interface.h"
// Lua: read(id) , return system adc
static int adc_sample( lua_State* L )
{
unsigned id = luaL_checkinteger( L, 1 );
MOD_CHECK_ID( adc, id );
unsigned val = 0xFFFF & system_adc_read();
lua_pushinteger( L, val );
return 1;
}
// Lua: readvdd33()
static int adc_readvdd33( lua_State* L )
{
uint32_t vdd33 = 0;
if(STATION_MODE == wifi_get_opmode())
{
// Bug fix
if (wifi_station_get_connect_status()!=0)
{
return luaL_error( L, "Can't read vdd33 while station is connected" );
}
else
{
vdd33 = readvdd33();
}
}
else
{
vdd33 = readvdd33();
}
lua_pushinteger(L, vdd33);
return 1;
}
// Module function map
#define MIN_OPT_LEVEL 2
#include "lrodefs.h"
const LUA_REG_TYPE adc_map[] =
{
{ LSTRKEY( "read" ), LFUNCVAL( adc_sample ) },
{ LSTRKEY( "readvdd33" ), LFUNCVAL( adc_readvdd33) },
#if LUA_OPTIMIZE_MEMORY > 0
#endif
{ LNILKEY, LNILVAL }
};
LUALIB_API int luaopen_adc( lua_State *L )
{
#if LUA_OPTIMIZE_MEMORY > 0
return 0;
#else // #if LUA_OPTIMIZE_MEMORY > 0
luaL_register( L, AUXLIB_ADC, adc_map );
// Add constants
return 1;
#endif // #if LUA_OPTIMIZE_MEMORY > 0
}