light_sensor.c

#include "py/obj.h"
#include "py/runtime.h"
#include "py/builtin.h"
#include "epicardium.h"

STATIC mp_obj_t mp_light_sensor_start()
{
    epic_light_sensor_run();
    return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(light_sensor_start_obj, mp_light_sensor_start);

STATIC mp_obj_t mp_light_sensor_get_reading()
{
    uint16_t last;
    int status = epic_light_sensor_get(&last);
    if (status == -ENODATA)
    {
        mp_raise_ValueError("sensor not running");
        return mp_const_none;
    }
    return mp_obj_new_int_from_uint(last);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(light_sensor_get_obj, mp_light_sensor_get_reading);

STATIC mp_obj_t mp_light_sensor_stop()
{
    epic_light_sensor_stop();
    return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(light_sensor_stop_obj, mp_light_sensor_stop);

STATIC const mp_rom_map_elem_t light_sensor_module_globals_table[] = {
    { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_light_sensor) },
    { MP_ROM_QSTR(MP_QSTR_start), MP_ROM_PTR(&light_sensor_start_obj) },
    { MP_ROM_QSTR(MP_QSTR_stop), MP_ROM_PTR(&light_sensor_stop_obj) },
    { MP_ROM_QSTR(MP_QSTR_get_reading), MP_ROM_PTR(&light_sensor_get_obj) }
};
STATIC MP_DEFINE_CONST_DICT(light_sensor_module_globals, light_sensor_module_globals_table);

const mp_obj_module_t light_sensor_module = {
    .base       = { &mp_type_module },
    .globals    = (mp_obj_dict_t *)&light_sensor_module_globals,
};

MP_REGISTER_MODULE(MP_QSTR_light_sensor, light_sensor_module, MODULE_AMBIENT_ENABLED);