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53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
/*
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* This file is part of the schlagbaum project.
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* Copyright 2023 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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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 3 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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// GPIO polling interval - 50ms
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#define GPIO_POLL_INTERVAL (0.05)
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// amount of in/out GPIO pins
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#define GPIO_IN_NUMBER (6)
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#define GPIO_OUT_NUMBER (6)
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// maximal GPIO number
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#define GPIO_MAX_NUMBER (32)
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// 6 outputs
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#define GPIO_OUT_MASK 0x3f
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// 6 inputs
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#define GPIO_IN_MASK 0x3f
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// timeout - clear GPIO after receiving command - 1 minute
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#define GPIO_TIMEOUT (60.)
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// don't allow to manage with GPIO over this time after last ON
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#define GPIO_SETTMOUT (5.0)
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// time for debounce (seconds)
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#define GPIO_DEBOUNSE_TIMEOUT (0.5)
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int gpio_open_device(const char *path);
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int gpio_setup_outputs();
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int gpio_setup_inputs();
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int gpio_poll(uint32_t *up, uint32_t *down);
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int gpio_set_output(int output);
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int gpio_clear_output(int output);
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void gpio_close();
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