cleaned up gpio and device code, implemented dummy/dry run mode
parent
3e4765d071
commit
1449ec643f
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<?php
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require_once __DIR__."/../vendor/autoload.php";
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NoccyLabs\Crap\Crap::activate();
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use NoccyLabs\Gpio\Gpio;
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use NoccyLabs\Gpio\Device\Display\Pcd8544Device;
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$gpio = new Gpio(true);
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$lcd = new Pcd8544Device;
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$lcd
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// we can rename devices as we like, to help in debugging
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->setName("pcd8544_1")
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->setPin("sda", $gpio[0])
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->setPin("scl", $gpio[1])
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->setPin("res", $gpio[2])
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->setPin("sce", $gpio[3])
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->setPin("dc", $gpio[4])
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->initialize()
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;
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@ -0,0 +1,209 @@
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<?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;
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use NoccyLabs\Gpio\Exception\HardwareException;
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use NoccyLabs\Sansi\Charset as CS;
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/**
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* GPIO pin implementation. This class wraps all interaction with a GPIO pin,
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* thus decoupling it from the main Gpio class.
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*
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*/
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class DummyGpioPin extends GpioPin
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{
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public function getPin()
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{
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return $this->pin;
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}
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private function findHardware()
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{
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return "dummy";
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}
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public function __destruct()
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{
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}
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public function setDirection($direction)
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{
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if (!in_array($direction, array("in", "out"))) {
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throw new \Exception;
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}
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$this->direction = $direction;
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$this->sysfsWrite($this->pin, "direction", $direction);
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return $this;
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}
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public function getDirection()
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{
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return $this->sysfsRead($this->pin, "direction");
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}
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public function setValue($value)
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{
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$this->value = (bool)$value;
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$this->sysfsWrite("{$this->pin}", "value", (int)$this->value);
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return $this;
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}
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public function getValue()
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{
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return $this->sysfsRead($this->pin, "value");
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}
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/**
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* Set a descriptive label for the pin, used for debugging and troubleshooting.
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*
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* @param string $label
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* @return NoccyLabs\Gpio\GpioPin
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*/
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public function setLabel($label)
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{
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$this->label = (string)$label;
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return $this;
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}
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/**
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* Get the assigned label for this pin.
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*
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* @return string The label
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*/
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public function getLabel()
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{
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return $this->label;
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}
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public function export()
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{
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if (file_exists("/sys/class/gpio/gpio{$this->pin}")) {
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return $this;
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}
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$this->sysfsWrite(null, "export", $this->pin);
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if (!file_exists("/sys/class/gpio/gpio{$this->pin}")) {
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throw new HardwareException("Unable to export pin {$this->pin}");
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}
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$this->hardware = $this->findHardware();
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return $this;
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}
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public function unexport()
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{
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$this->sysfsWrite(null, "unexport", $this->pin);
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return $this;
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}
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public function sysfsWrite($pin, $file, $value)
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{
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if ($pin!==null) {
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$path = "/sys/class/gpio/gpio{$pin}/{$file}";
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} else {
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$path = "/sys/class/gpio/{$file}";
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}
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printf("%16.4f \e[32;1m%-5s\e[0m \e[1m%-15s\e[0m (\e[33m%s\e[0m) => \e[36;1m%-10s\e[0m \n",
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microtime(true),
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"write",
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$this->label,
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$file,
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$value
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);
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}
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public function sysfsRead($pin, $file)
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{
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$path = "/sys/class/gpio/gpio{$pin}/{$file}";
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printf("%16.4f \e[31;1m%-5s\e[0m \e[1m%-15s\e[0m (\e[33m%s\e[0m)\n",
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microtime(true),
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"read",
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$this->label,
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$file
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);
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return 0;
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}
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public function setEdge($edge)
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{
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if (!in_array($edge, array("rising", "falling", "both", "none"))) {
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throw new \Exception;
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}
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$this->edge = $edge;
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$this->sysfsWrite($this->pin, "edge", $edge);
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return $this;
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}
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public function getEdge()
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{
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return $this->sysfsRead($this->pin, "edge");
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}
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public function setHandler(callable $handler=null)
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{
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$this->gpio->setInterruptHandler($this->pin, $this->fd);
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return $this;
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}
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public function doInterrupt()
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{
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fseek($this->fd,0,SEEK_SET);
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$val = fgets($this->fd);
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}
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public function dumpStatus($ansi=false)
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{
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if ($ansi) {
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$status = "\e[44;37;1m GPIO{$this->pin} \e[0m\n";
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$direction =
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($this->direction=="input"?(CS::chr(0x2190)):(CS::chr(0x2192))).
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" ".$this->direction;
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$edge = $this->edge; //"";
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/*if ($this->edge == "rising") {
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$edge.= CS::chr(0x21A5)." rising";
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} elseif ($this->edge == "falling") {
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$edge.= CS::chr(0x21A7)." falling";
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} else {
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$edge.= "\e[0m".$this->edge;
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}*/
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} else {
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$status = "********** GPIO{$this->pin} **********\n";
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$direction = $this->direction;
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}
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foreach(array(
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"Direction" => $this->getDirection(),
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"Value" => ($this->getValue()?1:0),
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"Edge" => $this->getEdge(),
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"Label" => $this->label,
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"Hardware" => $this->hardware,
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"Int count" => 0
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) as $k=>$v) {
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if ($ansi) {
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$status.= sprintf(" \e[32;1m%10s\e[0m: \e[0m%s\e[0m\n", $k, $v);
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} else {
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$status.= sprintf(" %-10s: %s\n", $k, $v);
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}
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}
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error_log($status);
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return $this;
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}
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}
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@ -0,0 +1,71 @@
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<?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;
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use NoccyLabs\Gpio\Exception\HardwareException;
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/**
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* Watch GPIO for interrupts (hardware or software)
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*
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*
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*
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*/
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class GpioWatcher
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{
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protected $fd_gpio = array();
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protected $fd_pins = array();
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public function refresh()
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{
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$read = $this->fd_gpio;
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$write = array();
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$except = $read;
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if (count($read)>0) {
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stream_select($read, $write, $except, 0);
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foreach($except as $fd) {
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$pin = $this->getPinFromFd($fd);
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$pin->doInterrupt();
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}
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}
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}
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public function getPinFromFd($fd)
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{
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foreach($this->fd_pins as $pinfd=>$pin) {
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if ($pinfd == $fd) { return $pin; }
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}
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return false;
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}
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public function enableInterrupt(GpioPin $pin, $fd)
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{
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$this->fd_gpio[] = $fd;
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$this->fd_pins[$fd] = $pin;
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}
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public function disableInterrupt(GpioPin $pin)
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{
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}
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}
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