73 lines
1.9 KiB
PHP
73 lines
1.9 KiB
PHP
<?php
|
|
|
|
/*
|
|
* Copyright (C) 2014, NoccyLabs
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>
|
|
*/
|
|
|
|
namespace NoccyLabs\Gpio;
|
|
|
|
class Gpio implements \ArrayAccess
|
|
{
|
|
protected $gpio = array();
|
|
|
|
/** @var NoccyLabs\Gpio\GpioMapperInterface */
|
|
protected $mapper;
|
|
|
|
public function refresh()
|
|
{
|
|
$read = $this->fd_gpio;
|
|
$write = array();
|
|
$except = $read;
|
|
select($read, $write, $except, 0);
|
|
foreach($except as $fd) {
|
|
$pin = $this->getPinFromFd($fd);
|
|
$pin->doInterrupt();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
public function setMapper(GpioMapperInterface $mapper=null)
|
|
{
|
|
$this->mapper = $mapper;
|
|
return $this;
|
|
}
|
|
|
|
public function offsetGet($index)
|
|
{
|
|
if ($this->mapper) { $index = $this->mapper->mapLogicalToGpioPin($index); }
|
|
if (empty($this->gpio[$index])) {
|
|
$this->gpio[$index] = new GpioPin($index);
|
|
}
|
|
return $this->gpio[$index];
|
|
}
|
|
|
|
public function offsetExists($index)
|
|
{
|
|
return array_key_exists($index, $this->gpio);
|
|
}
|
|
|
|
|
|
public function offsetSet($index,$value)
|
|
{ throw new \Exception(); }
|
|
|
|
public function offsetUnset($index)
|
|
{
|
|
unset($this->gpio[$index]);
|
|
}
|
|
|
|
}
|