99 lines
3.4 KiB
C
99 lines
3.4 KiB
C
/*
|
|
* This file is part of the MicroPython 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/runtime.h"
|
|
#include "py/mphal.h"
|
|
#include "user_interface.h"
|
|
|
|
typedef struct _machine_adc_obj_t {
|
|
mp_obj_base_t base;
|
|
bool isvdd;
|
|
} machine_adc_obj_t;
|
|
|
|
extern const mp_obj_type_t machine_adc_type;
|
|
|
|
STATIC machine_adc_obj_t machine_adc_vdd3 = {{&machine_adc_type}, true};
|
|
STATIC machine_adc_obj_t machine_adc_adc = {{&machine_adc_type}, false};
|
|
|
|
STATIC uint16_t adc_read(machine_adc_obj_t *self) {
|
|
if (self->isvdd) {
|
|
return system_get_vdd33();
|
|
} else {
|
|
return system_adc_read();
|
|
}
|
|
}
|
|
void machine_adc_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
|
|
machine_adc_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
|
mp_printf(print, "ADC(%u)", self->isvdd);
|
|
}
|
|
|
|
mp_obj_t machine_adc_make_new(const mp_obj_type_t *type_in, 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_int_t chn = mp_obj_get_int(args[0]);
|
|
|
|
switch (chn) {
|
|
case 0:
|
|
return &machine_adc_adc;
|
|
case 1:
|
|
return &machine_adc_vdd3;
|
|
default:
|
|
mp_raise_msg_varg(&mp_type_ValueError, "ADC(%d) doesn't exist", chn);
|
|
}
|
|
}
|
|
|
|
// read_u16()
|
|
STATIC mp_obj_t machine_adc_read_u16(mp_obj_t self_in) {
|
|
machine_adc_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
|
uint32_t value = adc_read(self);
|
|
return MP_OBJ_NEW_SMALL_INT(value * 65535 / 1024);
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_adc_read_u16_obj, machine_adc_read_u16);
|
|
|
|
// Legacy method
|
|
STATIC mp_obj_t machine_adc_read(mp_obj_t self_in) {
|
|
machine_adc_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
|
return mp_obj_new_int(adc_read(self));
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_adc_read_obj, machine_adc_read);
|
|
|
|
STATIC const mp_rom_map_elem_t machine_adc_locals_dict_table[] = {
|
|
{ MP_ROM_QSTR(MP_QSTR_read_u16), MP_ROM_PTR(&machine_adc_read_u16_obj) },
|
|
{ MP_ROM_QSTR(MP_QSTR_read), MP_ROM_PTR(&machine_adc_read_obj) }
|
|
};
|
|
STATIC MP_DEFINE_CONST_DICT(machine_adc_locals_dict, machine_adc_locals_dict_table);
|
|
|
|
const mp_obj_type_t machine_adc_type = {
|
|
{ &mp_type_type },
|
|
.name = MP_QSTR_ADC,
|
|
.print = machine_adc_print,
|
|
.make_new = machine_adc_make_new,
|
|
.locals_dict = (mp_obj_dict_t *)&machine_adc_locals_dict,
|
|
};
|