circuitpython/ports/zephyr/modzsensor.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2018 Linaro Limited
*
* 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.
*/
#include <string.h>
#include "py/runtime.h"
#include <zephyr.h>
#include <drivers/sensor.h>
#if MICROPY_PY_ZSENSOR
typedef struct _mp_obj_sensor_t {
mp_obj_base_t base;
struct device *dev;
} mp_obj_sensor_t;
STATIC mp_obj_t sensor_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
mp_arg_check_num(n_args, n_kw, 1, 1, false);
mp_obj_sensor_t *o = m_new_obj(mp_obj_sensor_t);
o->base.type = type;
o->dev = device_get_binding(mp_obj_str_get_str(args[0]));
if (o->dev == NULL) {
mp_raise_ValueError(MP_ERROR_TEXT("dev not found"));
}
return MP_OBJ_FROM_PTR(o);
}
STATIC mp_obj_t sensor_measure(mp_obj_t self_in) {
mp_obj_sensor_t *self = MP_OBJ_TO_PTR(self_in);
int st = sensor_sample_fetch(self->dev);
if (st != 0) {
mp_raise_OSError(-st);
}
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_1(sensor_measure_obj, sensor_measure);
STATIC void sensor_get_internal(mp_obj_t self_in, mp_obj_t channel_in, struct sensor_value *res) {
mp_obj_sensor_t *self = MP_OBJ_TO_PTR(self_in);
int st = sensor_channel_get(self->dev, mp_obj_get_int(channel_in), res);
if (st != 0) {
mp_raise_OSError(-st);
}
}
STATIC mp_obj_t sensor_get_float(mp_obj_t self_in, mp_obj_t channel_in) {
struct sensor_value val;
sensor_get_internal(self_in, channel_in, &val);
return mp_obj_new_float(val.val1 + (mp_float_t)val.val2 / 1000000);
}
MP_DEFINE_CONST_FUN_OBJ_2(sensor_get_float_obj, sensor_get_float);
STATIC mp_obj_t sensor_get_micros(mp_obj_t self_in, mp_obj_t channel_in) {
struct sensor_value val;
sensor_get_internal(self_in, channel_in, &val);
return MP_OBJ_NEW_SMALL_INT(val.val1 * 1000000 + val.val2);
}
MP_DEFINE_CONST_FUN_OBJ_2(sensor_get_micros_obj, sensor_get_micros);
STATIC mp_obj_t sensor_get_millis(mp_obj_t self_in, mp_obj_t channel_in) {
struct sensor_value val;
sensor_get_internal(self_in, channel_in, &val);
return MP_OBJ_NEW_SMALL_INT(val.val1 * 1000 + val.val2 / 1000);
}
MP_DEFINE_CONST_FUN_OBJ_2(sensor_get_millis_obj, sensor_get_millis);
STATIC mp_obj_t sensor_get_int(mp_obj_t self_in, mp_obj_t channel_in) {
struct sensor_value val;
sensor_get_internal(self_in, channel_in, &val);
return MP_OBJ_NEW_SMALL_INT(val.val1);
}
MP_DEFINE_CONST_FUN_OBJ_2(sensor_get_int_obj, sensor_get_int);
STATIC const mp_rom_map_elem_t sensor_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_measure), MP_ROM_PTR(&sensor_measure_obj) },
{ MP_ROM_QSTR(MP_QSTR_get_float), MP_ROM_PTR(&sensor_get_float_obj) },
{ MP_ROM_QSTR(MP_QSTR_get_micros), MP_ROM_PTR(&sensor_get_micros_obj) },
{ MP_ROM_QSTR(MP_QSTR_get_millis), MP_ROM_PTR(&sensor_get_millis_obj) },
{ MP_ROM_QSTR(MP_QSTR_get_int), MP_ROM_PTR(&sensor_get_int_obj) },
};
STATIC MP_DEFINE_CONST_DICT(sensor_locals_dict, sensor_locals_dict_table);
STATIC const mp_obj_type_t sensor_type = {
{ &mp_type_type },
.name = MP_QSTR_Sensor,
.make_new = sensor_make_new,
.locals_dict = (void *)&sensor_locals_dict,
};
STATIC const mp_rom_map_elem_t mp_module_zsensor_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_zsensor) },
{ MP_ROM_QSTR(MP_QSTR_Sensor), MP_ROM_PTR(&sensor_type) },
#define C(name) { MP_ROM_QSTR(MP_QSTR_##name), MP_ROM_INT(SENSOR_CHAN_##name) }
C(ACCEL_X),
C(ACCEL_Y),
C(ACCEL_Z),
C(GYRO_X),
C(GYRO_Y),
C(GYRO_Z),
C(MAGN_X),
C(MAGN_Y),
C(MAGN_Z),
C(DIE_TEMP),
C(PRESS),
C(PROX),
C(HUMIDITY),
C(LIGHT),
C(ALTITUDE),
#undef C
};
STATIC MP_DEFINE_CONST_DICT(mp_module_zsensor_globals, mp_module_zsensor_globals_table);
const mp_obj_module_t mp_module_zsensor = {
.base = { &mp_type_module },
.globals = (mp_obj_dict_t *)&mp_module_zsensor_globals,
};
#endif // MICROPY_PY_UHASHLIB