ps2: Add VNC support to the keyboard model

Add support for keyboard input from the VNC server in the PS/2
keyboard model. The introduced code is based on the functionality in
the Arm PL050 KMI model.

Change-Id: If04a9713e5a15e2149d1a7471b999e3060d8ee7d
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/9763
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>

1 files changed, 11 insertions, 1 deletions

diff --git a/src/dev/ps2/keyboard.hh b/src/dev/ps2/keyboard.hh
index 8943e7fcb..f5d83049f 100644
--- a/src/dev/ps2/keyboard.hh
+++ b/src/dev/ps2/keyboard.hh
@@ -44,11 +44,12 @@
 #ifndef __DEV_PS2_KEYBOARD_HH__
 #define __DEV_PS2_KEYBOARD_HH__
 
+#include "base/vnc/vncinput.hh"
 #include "dev/ps2/device.hh"
 
 struct PS2KeyboardParams;
 
-class PS2Keyboard : public PS2Device
+class PS2Keyboard : public PS2Device, VncKeyboard
 {
   protected:
     static const uint8_t ID[];
@@ -78,6 +79,12 @@ class PS2Keyboard : public PS2Device
 
     uint16_t lastCommand;
 
+    /** is the shift key currently down */
+    bool shiftDown;
+
+    /** Is the device enabled? */
+    bool enabled;
+
   public:
     PS2Keyboard(const PS2KeyboardParams *p);
 
@@ -86,6 +93,9 @@ class PS2Keyboard : public PS2Device
 
   protected: // PS2Device
     void recv(uint8_t data) override;
+
+  public: // VncKeyboard
+    void keyPress(uint32_t key, bool down) override;
 };
 
 #endif // __DEV_PS2_KEYBOARD_hH__