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83 lines (71 loc) · 2.68 KB
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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Josef Gajdusek
*
* 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 <stdio.h>
#include <string.h>
#include "py/nlr.h"
#include "py/obj.h"
#include "py/runtime.h"
#include "user_interface.h"
const mp_obj_type_t pyb_adc_type;
typedef struct _pyb_adc_obj_t {
mp_obj_base_t base;
bool isvdd;
} pyb_adc_obj_t;
STATIC pyb_adc_obj_t pyb_adc_vdd3 = {{&pyb_adc_type}, true};
STATIC pyb_adc_obj_t pyb_adc_adc = {{&pyb_adc_type}, false};
STATIC mp_obj_t pyb_adc_make_new(const mp_obj_type_t *type_in, mp_uint_t n_args, mp_uint_t n_kw,
const mp_obj_t *args) {
mp_arg_check_num(n_args, n_kw, 1, 1, false);
mp_int_t chn = mp_obj_get_int(args[0]);
switch (chn) {
case 0:
return &pyb_adc_adc;
case 1:
return &pyb_adc_vdd3;
default:
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError,
"not a valid ADC Channel: %d", chn));
}
}
STATIC mp_obj_t pyb_adc_read(mp_obj_t self_in) {
pyb_adc_obj_t *adc = self_in;
if (adc->isvdd) {
return mp_obj_new_int(system_get_vdd33());
} else {
return mp_obj_new_int(system_adc_read());
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_adc_read_obj, pyb_adc_read);
STATIC const mp_map_elem_t pyb_adc_locals_dict_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_read), (mp_obj_t)&pyb_adc_read_obj }
};
STATIC MP_DEFINE_CONST_DICT(pyb_adc_locals_dict, pyb_adc_locals_dict_table);
const mp_obj_type_t pyb_adc_type = {
{ &mp_type_type },
.name = MP_QSTR_ADC,
.make_new = pyb_adc_make_new,
.locals_dict = (mp_obj_t)&pyb_adc_locals_dict,
};