146 lines
5.1 KiB
C
146 lines
5.1 KiB
C
|
|
#include <stdint.h>
|
|
|
|
#include "lib/utils/context_manager_helpers.h"
|
|
#include "py/objproperty.h"
|
|
#include "py/runtime.h"
|
|
#include "py/runtime0.h"
|
|
#include "shared-bindings/microcontroller/Pin.h"
|
|
#include "shared-bindings/countio/Counter.h"
|
|
#include "shared-bindings/util.h"
|
|
|
|
//| class Counter:
|
|
//| """Counter will keep track of the number of falling edge transistions (pulses) on a
|
|
//| given pin"""
|
|
//|
|
|
//| def __init__(self, pin_a):
|
|
//| """Create a Counter object associated with the given pin. It tracks the number of
|
|
//| falling pulses relative when the object is constructed.
|
|
//|
|
|
//| :param ~microcontroller.Pin pin_a: Pin to read pulses from.
|
|
//|
|
|
//|
|
|
//| For example::
|
|
//|
|
|
//| import countio
|
|
//| import time
|
|
//| from board import *
|
|
//|
|
|
//| pin_counter = countio.Counter(board.D1)
|
|
//| #reset the count after 100 counts
|
|
//| while True:
|
|
//| if pin_counter.count == 100:
|
|
//| pin_counter.reset()
|
|
//| print(pin_counter.count)"""
|
|
//|
|
|
STATIC mp_obj_t countio_counter_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
|
|
enum { ARG_pin_a };
|
|
static const mp_arg_t allowed_args[] = {
|
|
{ MP_QSTR_pin_a, MP_ARG_REQUIRED | MP_ARG_OBJ }
|
|
|
|
};
|
|
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
|
|
mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
|
|
|
|
const mcu_pin_obj_t* pin_a = validate_obj_is_free_pin(args[ARG_pin_a].u_obj);
|
|
|
|
|
|
countio_counter_obj_t *self = m_new_obj(countio_counter_obj_t);
|
|
self->base.type = &countio_counter_type;
|
|
|
|
common_hal_countio_counter_construct(self, pin_a);
|
|
|
|
return MP_OBJ_FROM_PTR(self);
|
|
}
|
|
|
|
//| def deinit(self):
|
|
//| """Deinitializes the Counter and releases any hardware resources for reuse."""
|
|
//|
|
|
STATIC mp_obj_t countio_counter_deinit(mp_obj_t self_in) {
|
|
countio_counter_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
|
common_hal_countio_counter_deinit(self);
|
|
return mp_const_none;
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(countio_counter_deinit_obj, countio_counter_deinit);
|
|
|
|
STATIC void check_for_deinit(countio_counter_obj_t *self) {
|
|
if (common_hal_countio_counter_deinited(self)) {
|
|
raise_deinited_error();
|
|
}
|
|
}
|
|
|
|
//| def __enter__(self):
|
|
//| """No-op used by Context Managers."""
|
|
//|
|
|
// Provided by context manager helper.
|
|
|
|
//| def __exit__(self):
|
|
//| """Automatically deinitializes the hardware when exiting a context. See
|
|
//| :ref:`lifetime-and-contextmanagers` for more info."""
|
|
//|
|
|
STATIC mp_obj_t countio_counter_obj___exit__(size_t n_args, const mp_obj_t *args) {
|
|
(void)n_args;
|
|
common_hal_countio_counter_deinit(args[0]);
|
|
return mp_const_none;
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(countio_counter___exit___obj, 4, 4, countio_counter_obj___exit__);
|
|
|
|
|
|
//| count: int = ...
|
|
//| """The current count in terms of pulses."""
|
|
//|
|
|
STATIC mp_obj_t countio_counter_obj_get_count(mp_obj_t self_in) {
|
|
countio_counter_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
|
check_for_deinit(self);
|
|
|
|
return mp_obj_new_int(common_hal_countio_counter_get_count(self));
|
|
}
|
|
MP_DEFINE_CONST_FUN_OBJ_1(countio_counter_get_count_obj, countio_counter_obj_get_count);
|
|
|
|
STATIC mp_obj_t countio_counter_obj_set_count(mp_obj_t self_in, mp_obj_t new_count) {
|
|
countio_counter_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
|
check_for_deinit(self);
|
|
|
|
common_hal_countio_counter_set_count(self, mp_obj_get_int(new_count));
|
|
return mp_const_none;
|
|
}
|
|
MP_DEFINE_CONST_FUN_OBJ_2(countio_counter_set_count_obj, countio_counter_obj_set_count);
|
|
|
|
const mp_obj_property_t countio_counter_count_obj = {
|
|
.base.type = &mp_type_property,
|
|
.proxy = {(mp_obj_t)&countio_counter_get_count_obj,
|
|
(mp_obj_t)&countio_counter_set_count_obj,
|
|
(mp_obj_t)&mp_const_none_obj},
|
|
};
|
|
|
|
//| def reset(self):
|
|
//| """Resets the count back to 0."""
|
|
//|
|
|
STATIC mp_obj_t countio_counter_reset(mp_obj_t self_in){
|
|
countio_counter_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
|
check_for_deinit(self);
|
|
//set the position to zero for reset
|
|
common_hal_countio_counter_reset(self);
|
|
return mp_const_none;
|
|
}
|
|
|
|
|
|
MP_DEFINE_CONST_FUN_OBJ_1(countio_counter_reset_obj, countio_counter_reset);
|
|
|
|
STATIC const mp_rom_map_elem_t countio_counter_locals_dict_table[] = {
|
|
// Methods
|
|
{ MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&countio_counter_deinit_obj) },
|
|
{ MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&default___enter___obj) },
|
|
{ MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&countio_counter___exit___obj) },
|
|
{ MP_ROM_QSTR(MP_QSTR_count), MP_ROM_PTR(&countio_counter_count_obj) },
|
|
{ MP_ROM_QSTR(MP_QSTR_reset), MP_ROM_PTR(&countio_counter_reset_obj) },
|
|
};
|
|
STATIC MP_DEFINE_CONST_DICT(countio_counter_locals_dict, countio_counter_locals_dict_table);
|
|
|
|
const mp_obj_type_t countio_counter_type = {
|
|
{ &mp_type_type },
|
|
.name = MP_QSTR_Counter,
|
|
.make_new = countio_counter_make_new,
|
|
.locals_dict = (mp_obj_dict_t*)&countio_counter_locals_dict,
|
|
};
|