47 lines
899 B
PHP
47 lines
899 B
PHP
<?php
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namespace NoccyLabs\Gpio\Util;
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use NoccyLabs\Gpio\GpioPin;
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class BitmappedGpio
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{
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protected $gpio = array();
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public function __construct()
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{
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$this->gpio = array_fill(0,7,null);
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}
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public function setGpioPin($bit, GpioPin $gpiopin = null)
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{
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if (($bit >= 0) && ($bit <= 7)) {
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$this->gpio[$bit] = $gpiopin;
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} else {
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throw new \Exception("bit must be 0-7");
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}
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}
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public function read()
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{
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$r = 0;
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foreach($this->gpio as $bit=>$gpio) {
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if ($gpio->getValue()) { $r |= 1<<$bit; }
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}
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return $r;
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}
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public function write($byte)
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{
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$r = 0;
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foreach($this->gpio as $bit=>$gpio) {
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if ($gpio) {
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$gpio->setValue((bool)($byte & (1<<$bit)));
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}
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}
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return $this;
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}
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}
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