From bd5728062e9738372bdacd52a02deea70ba578bc Mon Sep 17 00:00:00 2001
From: Christopher Vagnetoft <cvagnetoft@gmail.com>
Date: Thu, 12 Jun 2014 01:53:57 +0200
Subject: [PATCH] Armed the gpio class

---
 examples/rf-remote.php | 35 +++++++++++++++++++++++++++++++++++
 lib/Gpio.php           | 14 ++++++++------
 lib/GpioPin.php        | 28 +++++++++++++---------------
 3 files changed, 56 insertions(+), 21 deletions(-)
 create mode 100644 examples/rf-remote.php

diff --git a/examples/rf-remote.php b/examples/rf-remote.php
new file mode 100644
index 0000000..2524769
--- /dev/null
+++ b/examples/rf-remote.php
@@ -0,0 +1,35 @@
+<?php
+
+require_once __DIR__."/../vendor/autoload.php";
+
+use NoccyLabs\Gpio\Gpio;
+use NoccyLabs\Gpio\GpioMapper\WiringPiMapper;
+
+try {
+    $gpio = new Gpio(true);
+} catch (Gpio\Exception $e) {
+    error_log("Error: {$e}");
+}
+
+// The mapper translates GPIO to logical pins and vice versa
+$gpio->setMapper( new WiringPiMapper(2) );
+
+// Access logical pin 0, since we got a mapper assigned. Otherwise this would
+// be the actual GPIO0 pin.
+$led = $gpio[0]
+    ->export()
+    ->setDirection("input")
+    ->setEdge("rising")
+    ->setHandler(function($e) use($gpio) {
+        
+    })
+    ->setLabel("rfint")
+    ->dumpStatus(true);
+
+for($n = 1; $n < 5; $n++) {
+    $gpio[$n]
+        ->setDirection("input")
+        ->setLabel("rfbt{$n}")
+        ->dumpStatus(true);
+}
+
diff --git a/lib/Gpio.php b/lib/Gpio.php
index ff88664..08bb3b4 100644
--- a/lib/Gpio.php
+++ b/lib/Gpio.php
@@ -28,13 +28,15 @@ class Gpio implements \ArrayAccess
     /** @var NoccyLabs\Gpio\GpioMapperInterface */
     protected $mapper;
     
-    public function __construct()
+    public function __construct($force=false)
     {
-        if (!file_exists("/sys/class/gpio")) {
-            throw new HardwareException("gpio sysfs is not available");
-        }
-        if (!is_writable("/sys/class/gpio/export")) {
-            throw new HardwareException("gpio sysfs is not writable");
+        if (!$force) {
+            if (!file_exists("/sys/class/gpio")) {
+                throw new HardwareException("gpio sysfs is not available");
+            }
+            if (!is_writable("/sys/class/gpio/export")) {
+                throw new HardwareException("gpio sysfs is not writable");
+            }
         }
     }
 
diff --git a/lib/GpioPin.php b/lib/GpioPin.php
index a0e574c..e13669e 100644
--- a/lib/GpioPin.php
+++ b/lib/GpioPin.php
@@ -45,12 +45,12 @@ class GpioPin
     public function __construct($pin)
     {
         $this->pin = (int)$pin;
-        //$this->fd = fopen("/sys/class/gpio/gpio{$pin}/value", "rb");
+        $this->fd = fopen("/sys/class/gpio/gpio{$pin}/value", "rb");
     }
     
     public function __destruct()
     {
-        //fclose($this->fd);
+        fclose($this->fd);
     }
     
     public function setDirection($direction)
@@ -59,7 +59,7 @@ class GpioPin
             throw new \Exception;
         }
         $this->direction = $direction;
-        //file_put_contents("/sys/class/gpio/{$this->pin}/direction", $direction);
+        file_put_contents("/sys/class/gpio/{$this->pin}/direction", $direction);
         return $this;
     }
     
@@ -71,7 +71,7 @@ class GpioPin
     public function setValue($value)
     {
         $this->value = (bool)$value;
-        //file_put_contents("/sys/class/gpio/{$this->pin}/value", (int)$this->value);
+        file_put_contents("/sys/class/gpio/{$this->pin}/value", (int)$this->value);
         return $this;
     }
     
@@ -93,18 +93,16 @@ class GpioPin
     
     public function export()
     {
-        /*
         file_put_contents("/sys/class/gpio/export", $this->pin);
         if (!file_exists("/sys/class/gpio/gpio{$this->pin}")) {
             throw new \Exception();
         }
-        */
         return $this;
     }
     
     public function unexport()
     {
-        //file_put_contents("/sys/class/gpio/unexport", $this->pin);
+        file_put_contents("/sys/class/gpio/unexport", $this->pin);
         return $this;
     }
     
@@ -114,7 +112,7 @@ class GpioPin
             throw new \Exception;
         }
         $this->edge = $edge;
-        //file_put_contents("/sys/class/gpio/{$this->pin}/edge", $edge);
+        file_put_contents("/sys/class/gpio/{$this->pin}/edge", $edge);
         return $this;
     }
     
@@ -138,17 +136,17 @@ class GpioPin
     {
         if ($ansi) {
             $status = "\e[44;37;1m          GPIO{$this->pin}          \e[0m\n";
-            $direction = "\e[36;1m".
+            $direction = 
                 ($this->direction=="input"?(CS::chr(0x2190)):(CS::chr(0x2192))).
-                "\e[0m ".$this->direction;
-            $edge = "\e[33;1m";
-            if ($this->edge == "rising") {
-                $edge.= CS::chr(0x21A5)."\e[0m rising";
+                " ".$this->direction;
+            $edge = $this->edge; //"";
+            /*if ($this->edge == "rising") {
+                $edge.= CS::chr(0x21A5)." rising";
             } elseif ($this->edge == "falling") {
-                $edge.= CS::chr(0x21A7)."\e[0m falling";
+                $edge.= CS::chr(0x21A7)." falling";
             } else {
                 $edge.= "\e[0m".$this->edge;
-            }
+            }*/
         } else {
             $status = "********** GPIO{$this->pin} **********\n";
             $direction = $this->direction;