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