circuitpython/shared-module/keypad/Keys.h

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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2021 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.
*/
#ifndef MICROPY_INCLUDED_SHARED_MODULE_KEYPAD_KEYS_H
#define MICROPY_INCLUDED_SHARED_MODULE_KEYPAD_KEYS_H
#include "common-hal/digitalio/DigitalInOut.h"
#include "py/obj.h"
#include "py/objtuple.h"
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#include "py/ringbuf.h"
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typedef struct _keypad_keys_obj_t {
mp_obj_base_t base;
mp_obj_tuple_t *digitalinouts;
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uint64_t last_scan_ticks;
bool value_when_pressed;
bool *previously_pressed;
bool *currently_pressed;
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ringbuf_t encoded_events;
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// Keep a linked list of active Keys objects.
struct _keypad_keys_obj_t *next;
} keypad_keys_obj_t;
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void keypad_keys_tick(void);
void keypad_keys_reset(void);
#endif // MICROPY_INCLUDED_SHARED_MODULE_KEYPAD_KEYS_H