Webpages: Added alsa configuration page

Added ability to update alsa config via the web pages

Signed-off-by: Daniel Riechers <driechers101@gmail.com>

home/pi/saveconfigs.sh

@@ -8,5 +8,7 @@ rsync -avH --delete /home/pi/.config/  /home/pi/config
 rsync -avH --delete /home/pi/.fldigi/  /home/pi/fldigi
 rsync -avH --delete /home/pi/.flrig/  /home/pi/flrig
 
+sudo alsactl store
+
 
 echo "Reboot to make filesystem read-only again."

var/www/html/audio.php

@@ -0,0 +1,138 @@
+<?php include 'header.php' ?>
+
+<h3>Audio Setup</h3>
+
+
+<form id="audioform" action="audio.php" method="post">
+
+<?php
+
+// Get all the available controls
+$output = shell_exec("sudo amixer scontrols");
+preg_match_all('/\'.*\'/', $output, $scontrols);
+
+// Handle POST
+if (isset($_POST["audio"])) {
+    $submit = $_POST["audio"];
+    if ( $submit == 'Submit' ) {
+	foreach ($scontrols[0] as $scontrol) {
+            $name = substr($scontrol, 1, -1);
+            $phpname = str_replace(" ", "_", $name);
+            $plevel = $_POST["pl$phpname"];
+            $clevel = $_POST["cl$phpname"];
+	    $mute = 'mute';
+	    $cap = 'nocap';
+
+	    if($_POST["ps$phpname"] == 'on')
+                $mute = 'unmute';
+	    if($_POST["cs$phpname"] == 'on')
+		    $cap = 'cap';
+
+            shell_exec("sudo amixer set $scontrol $mute playback $plevel% capture $clevel% $cap");
+	}
+    }
+}
+
+// Create the Slider table
+echo "<table>";
+
+// Create the Playback sliders
+echo "<tr><td><h3>Playback</h3></td></tr>";
+foreach ($scontrols[0] as $scontrol) {
+    $name = substr($scontrol, 1, -1);
+
+    // Get the current control settings and capabilties
+    $output = shell_exec("sudo amixer get $scontrol");
+
+    $checked = 0;
+    foreach(preg_split("/((\r?\n)|(\r\n?))/", $output) as $line) {
+        if(preg_match('/Playback [0-9]+ \[[0-9]+%\] \[-*[0-9]+\.[0-9]+dB\] \[on\]/', $line, $matches))
+	    $checked = 1;
+    }
+
+    if (preg_match_all('/Capabilities:.*pvolume/', $output)) {
+        //$level = $level_match[1];
+
+        // Grab the first level. Not supporting stereo.
+        preg_match_all('/Playback [0-9]+ \[([0-9]+)%\]/', $output, $levels);
+        $level = $levels[1][0];
+
+        echo "<tr>";
+        echo "<td>$name</td>";
+        // mmmmm sliders
+        echo "<td><input type='range' min='0' max='100' name='pl$name' value='$level' oninput='document.getElementById(\"pv$name\").value = this.value'></td><td><output id='pv$name'>$level</output></td>";
+	if (preg_match_all('/Capabilities:.*pswitch/', $output)) {
+            echo "<td><input type='checkbox' name='ps$name'";
+            if($checked)
+                echo " checked";
+            echo "></td>";
+	}
+	echo "</tr>";
+    }
+    elseif (preg_match_all('/Capabilities:.*pswitch/', $output)) {
+        $checked = preg_match_all('/Playback.*\[on\]/', $output);
+        echo "<tr>";
+        echo "<td>$name</td><td></td><td></td>";
+	echo "<td><input type='checkbox' name='ps$name'";
+        if($checked)
+            echo " checked";
+        echo "></td>";
+	echo "</tr>";
+    }
+}
+
+// Create the Capture sliders
+echo "<tr><td><h3>Capture</h3></td></tr>";
+
+foreach ($scontrols[0] as $scontrol) {
+    $name = substr($scontrol, 1, -1);
+
+    // Get the current control settings and capabilties
+    $output = shell_exec("sudo amixer get $scontrol");
+
+    $checked = 0;
+    foreach(preg_split("/((\r?\n)|(\r\n?))/", $output) as $line) {
+        if(preg_match('/Capture [0-9]+ \[[0-9]+%\] \[-*[0-9]+\.[0-9]+dB\] \[on\]/', $line, $matches))
+	    $checked = 1;
+    }
+
+    if (preg_match_all('/Capabilities:.*cvolume/', $output)) {
+        //$level = $level_match[1];
+
+        // Grab the first level. Not supporting stereo.
+        preg_match_all('/Capture [0-9]+ \[([0-9]+)%\]/', $output, $levels);
+        $level = $levels[1][0];
+
+        echo "<tr>";
+        echo "<td>$name</td>";
+        // mmmmm sliders
+        echo "<td><input type='range' min='0' max='100' name='cl$name' value='$level' oninput='document.getElementById(\"cv$name\").value = this.value'></td><td><output id='cv$name'>$level</output></td>";
+	if (preg_match_all('/Capabilities:.*cswitch/', $output)) {
+            echo "<td><input type='checkbox' name='cs$name'";
+            if($checked)
+                echo " checked";
+            echo "></td>";
+	}
+	echo "</tr>";
+    }
+    elseif (preg_match_all('/Capabilities:.*cswitch/', $output)) {
+        $checked = preg_match_all('/Playback.*\[on\]/', $output);
+        echo "<tr>";
+        echo "<td>$name</td><td></td><td></td>";
+	echo "<td><input type='checkbox' name='cs$name'";
+        if($checked)
+            echo " checked";
+        echo "></td>";
+	echo "</tr>";
+    }
+}
+echo "</table>";
+
+
+?>
+<br>
+<input type="submit" name="audio" value="Submit"> &nbsp; &nbsp; &nbsp; &nbsp;
+</form>
+
+</body>
+</html>

var/www/html/index.php

@@ -640,6 +640,11 @@ $output = shell_exec('sudo systemctl reset-failed js8call 2> /dev/null');
      <a href="/webchat.php" target="webchat" title="APRS Messaging"><strong>Webchat</strong></a>
   </td>
 </tr>
+<tr>
+  <td>
+    <a href="/audio.php" title="Audio Settings"><strong>Audio</strong></a>
+  </td>
+</tr>
 
 <?php
   if (!file_exists("/var/cache/digipi/localized.txt")) {