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33 lines
1.1 KiB
C
33 lines
1.1 KiB
C
/* Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.com>
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* Copyright 2020 Ploopy Corporation
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <stdint.h>
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#ifndef SCROLLER_AR_SIZE
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# define SCROLLER_AR_SIZE 31
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#endif
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#ifndef SCROLL_THRESH_RANGE_LIM
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# define SCROLL_THRESH_RANGE_LIM 10
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#endif
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void opt_encoder_init(void);
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/* Return the rotation direction, positive value means clockwise, negative value
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* means counter-clockwise */
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int8_t opt_encoder_handler(uint16_t curA, uint16_t curB);
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