circuitpython/shared-bindings/alarm/pin/PinAlarm.c
2023-10-24 16:20:51 -07:00

127 lines
5.8 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2020 Dan Halbert for Adafruit Industries
*
* 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 "shared-bindings/board/__init__.h"
#include "shared-bindings/microcontroller/__init__.h"
#include "shared-bindings/microcontroller/Pin.h"
#include "shared-bindings/alarm/pin/PinAlarm.h"
#include "py/nlr.h"
#include "py/obj.h"
#include "py/objproperty.h"
#include "py/runtime.h"
//| class PinAlarm:
//| """Trigger an alarm when a pin changes state."""
//|
//| def __init__(
//| self, pin: microcontroller.Pin, value: bool, edge: bool = False, pull: bool = False
//| ) -> None:
//| """Create an alarm triggered by a `microcontroller.Pin` level. The alarm is not active
//| until it is passed to an `alarm`-enabling function, such as `alarm.light_sleep_until_alarms()` or
//| `alarm.exit_and_deep_sleep_until_alarms()`.
//|
//| :param microcontroller.Pin pin: The pin to monitor. On some ports, the choice of pin
//| may be limited due to hardware restrictions, particularly for deep-sleep alarms.
//| :param bool value: When active, trigger when the pin value is high (``True``) or low (``False``).
//| On some ports, multiple `PinAlarm` objects may need to have coordinated values
//| for deep-sleep alarms.
//| :param bool edge: If ``True``, trigger only when there is a transition to the specified
//| value of ``value``. If ``True``, if the alarm becomes active when the pin value already
//| matches ``value``, the alarm is not triggered: the pin must transition from ``not value``
//| to ``value`` to trigger the alarm. On some ports, edge-triggering may not be available,
//| particularly for deep-sleep alarms.
//| :param bool pull: Enable a pull-up or pull-down which pulls the pin to the level opposite
//| that of ``value``. For instance, if ``value`` is set to ``True``, setting ``pull``
//| to ``True`` will enable a pull-down, to hold the pin low normally until an outside signal
//| pulls it high.
//| """
//| ...
STATIC mp_obj_t alarm_pin_pinalarm_make_new(const mp_obj_type_t *type, mp_uint_t n_args, size_t n_kw, const mp_obj_t *all_args) {
alarm_pin_pinalarm_obj_t *self = mp_obj_malloc(alarm_pin_pinalarm_obj_t, &alarm_pin_pinalarm_type);
enum { ARG_pin, ARG_value, ARG_edge, ARG_pull };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_pin, MP_ARG_REQUIRED | MP_ARG_OBJ },
{ MP_QSTR_value, MP_ARG_KW_ONLY | MP_ARG_REQUIRED | MP_ARG_BOOL },
{ MP_QSTR_edge, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
{ MP_QSTR_pull, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
};
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
const mcu_pin_obj_t *pin = validate_obj_is_free_pin(args[ARG_pin].u_obj, MP_QSTR_pin);
common_hal_alarm_pin_pinalarm_construct(self,
pin,
args[ARG_value].u_bool,
args[ARG_edge].u_bool,
args[ARG_pull].u_bool);
return MP_OBJ_FROM_PTR(self);
}
//| pin: microcontroller.Pin
//| """The trigger pin."""
STATIC mp_obj_t alarm_pin_pinalarm_obj_get_pin(mp_obj_t self_in) {
alarm_pin_pinalarm_obj_t *self = MP_OBJ_TO_PTR(self_in);
const mcu_pin_obj_t *pin = common_hal_alarm_pin_pinalarm_get_pin(self);
if (pin == NULL) {
return mp_const_none;
}
return MP_OBJ_FROM_PTR(pin);
}
MP_DEFINE_CONST_FUN_OBJ_1(alarm_pin_pinalarm_get_pin_obj, alarm_pin_pinalarm_obj_get_pin);
MP_PROPERTY_GETTER(alarm_pin_pinalarm_pin_obj,
(mp_obj_t)&alarm_pin_pinalarm_get_pin_obj);
//| value: bool
//| """The value on which to trigger."""
//|
STATIC mp_obj_t alarm_pin_pinalarm_obj_get_value(mp_obj_t self_in) {
alarm_pin_pinalarm_obj_t *self = MP_OBJ_TO_PTR(self_in);
return mp_obj_new_bool(common_hal_alarm_pin_pinalarm_get_value(self));
}
MP_DEFINE_CONST_FUN_OBJ_1(alarm_pin_pinalarm_get_value_obj, alarm_pin_pinalarm_obj_get_value);
MP_PROPERTY_GETTER(alarm_pin_pinalarm_value_obj,
(mp_obj_t)&alarm_pin_pinalarm_get_value_obj);
STATIC const mp_rom_map_elem_t alarm_pin_pinalarm_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_pin), MP_ROM_PTR(&alarm_pin_pinalarm_pin_obj) },
{ MP_ROM_QSTR(MP_QSTR_value), MP_ROM_PTR(&alarm_pin_pinalarm_value_obj) },
};
STATIC MP_DEFINE_CONST_DICT(alarm_pin_pinalarm_locals_dict, alarm_pin_pinalarm_locals_dict_table);
MP_DEFINE_CONST_OBJ_TYPE(
alarm_pin_pinalarm_type,
MP_QSTR_PinAlarm,
MP_TYPE_FLAG_HAS_SPECIAL_ACCESSORS,
make_new, alarm_pin_pinalarm_make_new,
locals_dict, &alarm_pin_pinalarm_locals_dict
);