From dcea5e5dcafdcf31a61231abdaddbf89c8dba66c Mon Sep 17 00:00:00 2001
From: Petr Kracik <petrkr@petrkr.net>
Date: Fri, 5 Jun 2020 17:16:52 +0200
Subject: [PATCH] Gadget: removed relative mouse

---
 gadget_disable.sh       |  2 -
 gadget_enable.sh        | 41 +++++----------------
 templates/hid.html      |  2 -
 templates/keyboard.html | 81 +++++++++++++++++++++++++++++++++++++++++
 4 files changed, 90 insertions(+), 36 deletions(-)
 create mode 100644 templates/keyboard.html

diff --git a/gadget_disable.sh b/gadget_disable.sh
index 80991f6..22bd7cc 100755
--- a/gadget_disable.sh
+++ b/gadget_disable.sh
@@ -9,7 +9,6 @@ echo "" > UDC
 echo "Clean up configs"
 rm configs/c.1/hid.kbd0
 rm configs/c.1/hid.mouse0
-rm configs/c.1/hid.mouse1
 rm configs/c.1/mass_storage.disk1
 rm configs/c.1/mass_storage.cdrom1
 
@@ -19,7 +18,6 @@ rmdir configs/c.1
 echo "Clean up functions"
 rmdir functions/hid.kbd0
 rmdir functions/hid.mouse0
-rmdir functions/hid.mouse1
 rmdir functions/mass_storage.disk1
 rmdir functions/mass_storage.cdrom1
 
diff --git a/gadget_enable.sh b/gadget_enable.sh
index 5674745..ddba64b 100755
--- a/gadget_enable.sh
+++ b/gadget_enable.sh
@@ -5,7 +5,7 @@ gserial=$(awk '/Serial/ { print $3 }' /proc/cpuinfo)
 gmanufacturer="Petrkr.NET"
 gproduct="rPi KVM"
 
-#Mouse 0 relative descriptor
+#Mouse absolute descriptor
 MOUSE0=""
 MOUSE0="$MOUSE0\\x05\\x01\\x09\\x02" # Usage generic desktop, Usage mouse
 MOUSE0="$MOUSE0\\xa1\\x01\\x09\\x01" # Collection App, Usage Pointer
@@ -14,31 +14,17 @@ MOUSE0="$MOUSE0\\x05\\x09" # Use Page buttons
 MOUSE0="$MOUSE0\\x19\\x01\\x29\\x08\\x15\\x00\\x25\\x01\\x75\\x01\\x95\\x08" # Usage min 1, max 8, logical min 0, max 1, report 8, size 1
 MOUSE0="$MOUSE0\\x81\\x02" # Input data, variable, absolute
 MOUSE0="$MOUSE0\\x05\\x01" # Usage page generic desktop
-MOUSE0="$MOUSE0\\x09\\x30\\x09\\x31\\x09\\x38\\x15\\x81\\x25\\x7f\\x75\\x08\\x95\\x03" # Usage X,Y,Wheel, Log min -127, log max 127, size 8, report 3
+MOUSE0="$MOUSE0\\x09\\x30\\x16\\x00\\x00\\x26\\x80\\x07\\x75\\x10\\x95\\x01" # Usage X, Log min 0, log max 1920, size 16, report 1
 MOUSE0="$MOUSE0\\x81\\x02" # Input data, variable, absolute
+MOUSE0="$MOUSE0\\x05\\x01" # Usage page generic desktop
+MOUSE0="$MOUSE0\\x09\\x31\\x16\\x00\\x00\\x26\\x38\\x04\\x75\\x10\\x95\\x01" # Usage Y, Log min 0, log max 1080, size 16, report 1
+MOUSE0="$MOUSE0\\x81\\x02" # Input data, variable, absolute
+MOUSE0="$MOUSE0\\x05\\x01" # Usage page generic desktop
+MOUSE0="$MOUSE0\\x09\\x38\\x15\\x81\\x25\\x7f\\x75\\x08\\x95\\x01" # Usage Wheel, log min -127, max 127, size 8, report 1
+MOUSE0="$MOUSE0\\x81\\x06" # Input data, variable, relative
 MOUSE0="$MOUSE0\\xc0" # End collection Physical
 MOUSE0="$MOUSE0\\xc0" # End collection Application
 
-#Mouse 1 absolute descriptor
-MOUSE1=""
-MOUSE1="$MOUSE1\\x05\\x01\\x09\\x02" # Usage generic desktop, Usage mouse
-MOUSE1="$MOUSE1\\xa1\\x01\\x09\\x01" # Collection App, Usage Pointer
-MOUSE1="$MOUSE1\\xa1\\x00" # Collection Physical
-MOUSE1="$MOUSE1\\x05\\x09" # Use Page buttons
-MOUSE1="$MOUSE1\\x19\\x01\\x29\\x08\\x15\\x00\\x25\\x01\\x75\\x01\\x95\\x08" # Usage min 1, max 8, logical min 0, max 1, report 8, size 1
-MOUSE1="$MOUSE1\\x81\\x02" # Input data, variable, absolute
-MOUSE1="$MOUSE1\\x05\\x01" # Usage page generic desktop
-MOUSE1="$MOUSE1\\x09\\x30\\x16\\x00\\x00\\x26\\x80\\x07\\x75\\x10\\x95\\x01" # Usage X, Log min 0, log max 1920, size 16, report 1
-MOUSE1="$MOUSE1\\x81\\x02" # Input data, variable, absolute
-MOUSE1="$MOUSE1\\x05\\x01" # Usage page generic desktop
-MOUSE1="$MOUSE1\\x09\\x31\\x16\\x00\\x00\\x26\\x38\\x04\\x75\\x10\\x95\\x01" # Usage Y, Log min 0, log max 1080, size 16, report 1
-MOUSE1="$MOUSE1\\x81\\x02" # Input data, variable, absolute
-MOUSE1="$MOUSE1\\x05\\x01" # Usage page generic desktop
-MOUSE1="$MOUSE1\\x09\\x38\\x15\\x81\\x25\\x7f\\x75\\x08\\x95\\x01" # Usage Wheel, log min -127, max 127, size 8, report 1
-MOUSE1="$MOUSE1\\x81\\x06" # Input data, variable, relative
-MOUSE1="$MOUSE1\\xc0" # End collection Physical
-MOUSE1="$MOUSE1\\xc0" # End collection Application
-
 cd /sys/kernel/config/usb_gadget/
 mkdir -p $gname
 cd $gname
@@ -68,20 +54,13 @@ echo 1 > functions/hid.kbd0/subclass
 echo 8 > functions/hid.kbd0/report_length
 echo -ne \\x05\\x01\\x09\\x06\\xa1\\x01\\x05\\x07\\x19\\xe0\\x29\\xe7\\x15\\x00\\x25\\x01\\x75\\x01\\x95\\x08\\x81\\x02\\x95\\x01\\x75\\x08\\x81\\x03\\x95\\x05\\x75\\x01\\x05\\x08\\x19\\x01\\x29\\x05\\x91\\x02\\x95\\x01\\x75\\x03\\x91\\x03\\x95\\x06\\x75\\x08\\x15\\x00\\x25\\xff\\x05\\x07\\x19\\x00\\x29\\x65\\x81\\x00\\xc0 > functions/hid.kbd0/report_desc
 
-echo "  HID Mouse Relative"
+echo "  HID Mouse"
 mkdir -p functions/hid.mouse0
 echo 2 > functions/hid.mouse0/protocol
 echo 1 > functions/hid.mouse0/subclass
 echo 8 > functions/hid.mouse0/report_length
 echo -ne $MOUSE0 > functions/hid.mouse0/report_desc
 
-echo "  HID Mouse Absolute"
-mkdir -p functions/hid.mouse1
-echo 2 > functions/hid.mouse1/protocol
-echo 1 > functions/hid.mouse1/subclass
-echo 8 > functions/hid.mouse1/report_length
-echo -ne $MOUSE1 > functions/hid.mouse1/report_desc
-
 
 echo "  Mass storage"
 mkdir -p functions/mass_storage.disk1
@@ -95,7 +74,6 @@ echo 1 > functions/mass_storage.cdrom1/lun.0/removable
 echo "Activating gadgeds"
 ln -s functions/hid.kbd0 configs/c.1/
 ln -s functions/hid.mouse0 configs/c.1/
-ln -s functions/hid.mouse1 configs/c.1/
 ln -s functions/mass_storage.disk1 configs/c.1/
 ln -s functions/mass_storage.cdrom1 configs/c.1/
 
@@ -106,4 +84,3 @@ ls /sys/class/udc > UDC
 echo "Change permissions"
 chgrp input /dev/hidg0; chmod 660 /dev/hidg0
 chgrp input /dev/hidg1; chmod 660 /dev/hidg1
-chgrp input /dev/hidg2; chmod 660 /dev/hidg2
diff --git a/templates/hid.html b/templates/hid.html
index 8747072..e0cf514 100644
--- a/templates/hid.html
+++ b/templates/hid.html
@@ -12,8 +12,6 @@
 <div>
 </div>
 
-<input type=text />
-
 <br/>
 Server response: <span></span>
 
diff --git a/templates/keyboard.html b/templates/keyboard.html
new file mode 100644
index 0000000..e0cf514
--- /dev/null
+++ b/templates/keyboard.html
@@ -0,0 +1,81 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <title>Klávesnice remote SSH</title>
+  <style>
+  </style>
+  <script src="https://code.jquery.com/jquery-3.5.0.js"></script>
+</head>
+<body>
+	HID input service, POST data to /keyboard or /mouse <br/>
+<div>
+</div>
+
+<br/>
+Server response: <span></span>
+
+<script>
+function zapis(t) {
+  $("div").text(t);
+}
+
+var previous;
+
+$(window).bind('keydown', function(event) {
+  event.preventDefault();
+  var str = String.fromCharCode(event.which).toLowerCase();
+
+  var ctrl = event.ctrlKey;
+  if (previous == 17) {
+    ctrl = true;
+  }
+
+  var obj = {
+    ctrlKey: ctrl,
+    shiftKey: event.shiftKey,
+    altKey: event.altKey,
+    which: event.which,
+	code: event.code,
+    str: str
+  }
+
+  if (event.which != 16 && event.which != 17 && event.which != 18) {
+    console.log(obj);
+
+    var ret = $.ajax({
+        type: "POST",
+        url: "hid/keyboard",
+        data: JSON.stringify(obj),
+        contentType: "application/json; charset=utf-8",
+        dataType: "json"
+    });
+
+	$("span").text(ret.responseText);
+	console.log(ret);
+	
+
+  }
+
+  var text = "";
+  if (ctrl) {
+    text = text + ' + Control';
+  }
+  if (event.shiftKey) {
+    text = text + ' + Shift';
+  }
+  if (event.altKey) {
+    text = text + ' + Alt';
+  }
+  text = text + ' + ' + str;
+  text = text.substr(3);
+  zapis(text);
+
+  previous = event.keyCode;
+
+});
+
+</script>
+ 
+</body>
+</html>