68 lines
2.5 KiB
C
68 lines
2.5 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2021 Dan Halbert for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef SHARED_MODULE_KEYPAD_H
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#define SHARED_MODULE_KEYPAD_H
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#include "py/obj.h"
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#include "supervisor/shared/lock.h"
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typedef struct _keypad_scanner_funcs_t {
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void (*scan_now)(void *self_in, mp_obj_t timestamp);
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size_t (*get_key_count)(void *self_in);
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} keypad_scanner_funcs_t;
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// All scanners must begin with these common fields.
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// This is an ad hoc "superclass" struct for scanners, though they do
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// not actually have a superclass relationship.
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#define KEYPAD_SCANNER_COMMON_FIELDS \
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mp_obj_base_t base; \
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struct _keypad_scanner_obj_t *next; \
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keypad_scanner_funcs_t *funcs; \
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uint64_t next_scan_ticks; \
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bool *previously_pressed; \
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bool *currently_pressed; \
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struct _keypad_eventqueue_obj_t *events; \
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mp_uint_t interval_ticks
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typedef struct _keypad_scanner_obj_t {
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KEYPAD_SCANNER_COMMON_FIELDS;
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} keypad_scanner_obj_t;
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extern supervisor_lock_t keypad_scanners_linked_list_lock;
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void keypad_tick(void);
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void keypad_reset(void);
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void keypad_register_scanner(keypad_scanner_obj_t *scanner);
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void keypad_deregister_scanner(keypad_scanner_obj_t *scanner);
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void keypad_construct_common(keypad_scanner_obj_t *scanner, mp_float_t interval, size_t max_events);
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size_t common_hal_keypad_generic_get_key_count(void *scanner);
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void common_hal_keypad_deinit_core(void *scanner);
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#endif // SHARED_MODULE_KEYPAD_H
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