143 lines
2.9 KiB
PHP
143 lines
2.9 KiB
PHP
<?php
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/*
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* Copyright (C) 2014, NoccyLabs
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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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namespace NoccyLabs\Gpio\Device;
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use NoccyLabs\Gpio\GpioPin;
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abstract class Device
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{
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protected $name;
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protected $description;
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protected $pins = array();
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public function __construct()
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{
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$this->configure();
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}
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protected function configure()
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{
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// call on ->addGpioPin etc here
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}
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public function setGpio(Gpio $gpio=null)
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{
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$this->gpio = $gpio;
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}
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public function getGpio()
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{
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return $this->gpio;
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}
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public function setName($name)
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{
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$this->name = $name;
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return $this;
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}
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public function getName()
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{
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return $this->name;
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}
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public function setDescription($description)
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{
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$this->description = $description;
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return $this;
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}
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public function getDescription()
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{
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return $this->description;
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}
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public function addPin($name, $description=null)
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{
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$this->pins[$name] = null;
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return $this;
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}
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/**
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* Get all allocated pins
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*
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*/
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public function getPins()
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{
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return $this->pins;
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}
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/**
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* Get a pin by the name specified when allocating it
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*
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*/
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public function getPin($name)
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{
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return $this->pins[$name];
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}
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public function setPin($pin_name, $pin)
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{
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if (array_key_exists($pin_name, $this->pins)) {
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$pin->setLabel($this->name.".".$pin_name);
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$this->pins[$pin_name] = $pin;
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return $this;
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}
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throw new \Exception();
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}
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/**
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* Get a pin as a property from its name
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*
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*/
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public function __get($pin_name)
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{
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return $this->getPin($pin_name);
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}
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public function __set($pin_name, GpioPin $pin)
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{
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$this->setPin($pin_name, $pin);
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}
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protected function delayMillis($ms)
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{
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usleep($ms*1000);
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}
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protected function delayMicros($us)
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{
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usleep($us);
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}
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protected function shiftOut(GpioPin $pdata, GpioPin $pclk, $byte)
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{
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for ($bit = 0; $bit < 8; $bit++) {
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$bval = 1<<$bit;
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$pclk->setValue(0);
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$pdata->setValue(($byte & $bval) == $bval);
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$pclk->setValue(1);
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}
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}
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}
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