mirror of
https://github.com/ocogeclub/ocoge.git
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70 lines
2.5 KiB
JavaScript
70 lines
2.5 KiB
JavaScript
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module.exports = require('bindings')('rgpio');
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// module.exports.SET_ACTIVE_LOW = 4;
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// module.exports.SET_OPEN_DRAIN = 8;
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// module.exports.SET_OPEN_SOURCE = 16;
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// module.exports.SET_PULL_UP = 32;
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// module.exports.SET_PULL_DOWN = 64;
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// module.exports.SET_PULL_NONE = 128;
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module.exports.PULL_UP = 32;
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module.exports.PULL_DOWN = 64;
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module.exports.PULL_NONE = 128;
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const CHIP_COUNT = 5;
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const port = '';
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let sbc = -1;
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let gpiochip_hand = [];
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let ser_hand = -1;
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let i2c_hand = -1;
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module.exports.gpio_open = async () => {
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sbc = await module.exports._rgpiod_start('', port);
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if (sbc < 0) return sbc;
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for (let i = 0; i < CHIP_COUNT; i++) {
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gpiochip_hand.push(await module.exports._gpiochip_open(sbc, i));
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}
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return gpiochip_hand;
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}
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module.exports.gpio_close = async () => {
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for (let i = 0; i < CHIP_COUNT; i++) {
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await module.exports._gpiochip_close(sbc, gpiochip_hand[i]);
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}
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gpiochip_hand = [];
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await module.exports._rgpiod_stop(sbc);
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sbc = -1;
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}
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module.exports.gpio_set_output = async gpio => {
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let chip = Math.floor(gpio / 32);
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let pin = Math.floor(gpio % 32);
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if (gpiochip_hand[chip] >= 0) return await module.exports._gpio_claim_output(sbc, gpiochip_hand[chip], pin);
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}
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module.exports.gpio_write = async (gpio, value) => {
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let chip = Math.floor(gpio / 32);
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let pin = Math.floor(gpio % 32);
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if (gpiochip_hand[chip] >= 0) return await module.exports._gpio_write(sbc, gpiochip_hand[chip], pin, value);
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}
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module.exports.i2c_open = async (i2c_bus, i2c_address) => {
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if (i2c_hand >= 0) await module.exports._i2c_close(i2c_hand); // 勝手に閉じる
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i2c_hand = await module.exports._i2c_open(sbc, i2c_bus, i2c_address, 0);
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return i2c_hand;
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}
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module.exports.i2c_close = async () => {
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if (i2c_hand >= 0) await module.exports._i2c_close(sbc, i2c_hand);
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i2c_hand = -1;
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}
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module.exports.i2c_write_byte_data = async (reg, byte_val) => {
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if (i2c_hand >= 0) return await module.exports._i2c_write_byte_data(sbc, i2c_hand, reg, byte_val);
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}
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module.exports.i2c_write_i2c_block_data = async (reg, data) => {
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if (i2c_hand >= 0) return await module.exports._i2c_write_i2c_block_data(sbc, i2c_hand, reg, Buffer.from(data));
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}
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module.exports.i2c_read_word_data = async reg => {
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if (i2c_hand >= 0) return await module.exports._i2c_read_word_data(sbc, i2c_hand, reg);
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}
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// 終了処理
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module.exports.close_all_handle = async () => {
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await module.exports.gpio_close();
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// await module.exports.serial_close();
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await module.exports.i2c_close();
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}
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