From ef74c8ff6d3c67c3faaffa03f97d4f8309ffe3d1 Mon Sep 17 00:00:00 2001
From: sorgelig <pour.garbage@gmail.com>
Date: Thu, 12 Jan 2017 01:24:33 +0800
Subject: [PATCH] Keyrah: FN+F3..F6 - mouse/joystick direct emulation
 selection. (F17..F20 - on other keyboards).

---
 keycodes.h | 28 ++++++++++++++--------------
 user_io.c  | 29 ++++++++++++++++++++++++++++-
 2 files changed, 42 insertions(+), 15 deletions(-)

diff --git a/keycodes.h b/keycodes.h
index fca43ff..4abd676 100644
--- a/keycodes.h
+++ b/keycodes.h
@@ -21,8 +21,8 @@
 #define EXT               0x1000     // extended PS/2 keycode
 
 // amiga unmapped: 
-// 0x5a KP-(
-// 0x5b KP-)
+// 0x5a KP-( (mapped on Keyrah)
+// 0x5b KP-) (mapped on Keyrah)
 // codes >= 0x69 are for OSD only and are not sent to the amiga itself
 
 // keycode translation table
@@ -135,10 +135,10 @@ const unsigned short usb2ami[] = {
   0x5b,  // 69: KP )
   MISS,  // 6a: F15
   MISS,  // 6b: F16
-  MISS,  // 6c: F17
-  MISS,  // 6d: F18
-  MISS,  // 6e: F19
-  MISS   // 6f: F20
+  NUM_LOCK_TOGGLE | 1,  // 6c: F17
+  NUM_LOCK_TOGGLE | 2,  // 6d: F18
+  NUM_LOCK_TOGGLE | 3,  // 6e: F19
+  NUM_LOCK_TOGGLE | 4   // 6f: F20
 };
 
 // unmapped atari keys:
@@ -255,10 +255,10 @@ const unsigned short usb2atari[] = {
   MISS,  // 69: F14
   MISS,  // 6a: F15
   MISS,  // 6b: F16
-  MISS,  // 6c: F17
-  MISS,  // 6d: F18
-  MISS,  // 6e: F19
-  MISS   // 6f: F20
+  NUM_LOCK_TOGGLE | 1,  // 6c: F17
+  NUM_LOCK_TOGGLE | 2,  // 6d: F18
+  NUM_LOCK_TOGGLE | 3,  // 6e: F19
+  NUM_LOCK_TOGGLE | 4   // 6f: F20
 };
 
 // keycode translation table for ps2 emulation
@@ -371,10 +371,10 @@ const unsigned short usb2ps2[] = {
   0x7e,  // 69: Scroll Lock
   0x18,  // 6a: F15
   0x20,  // 6b: F16
-  0x28,  // 6c: F17
-  0x30,  // 6d: F18
-  0x38,  // 6e: F19
-  0x40   // 6f: F20
+  NUM_LOCK_TOGGLE | 1,  // 6c: F17
+  NUM_LOCK_TOGGLE | 2,  // 6d: F18
+  NUM_LOCK_TOGGLE | 3,  // 6e: F19
+  NUM_LOCK_TOGGLE | 4   // 6f: F20
 };
 
 // Archimedes unmapped keys
diff --git a/user_io.c b/user_io.c
index b1df05e..baae7bd 100644
--- a/user_io.c
+++ b/user_io.c
@@ -1549,6 +1549,11 @@ static char kr_fn_table[] =
 	0x3a, 0x44, // f11
 	0x3b, 0x45, // f12
 
+	0x3c, 0x6c, // EMU_MOUSE
+	0x3d, 0x6d, // EMU_JOY0
+	0x3e, 0x6e, // EMU_JOY1
+	0x3f, 0x6f, // EMU_NONE
+
 	//Emulate keypad for A600 
 	0x1E, 0x59, //KP1
 	0x1F, 0x5A, //KP2
@@ -1899,7 +1904,29 @@ void user_io_kbd(unsigned char m, unsigned char *k, uint8_t priority, unsigned s
 
 								if(emu_mode == EMU_MOUSE) emu_timer = GetTimer(EMU_MOUSE_FREQ);
 
-								emu_mode = (emu_mode+1)&3;
+								switch(code ^ NUM_LOCK_TOGGLE)
+								{
+									case 1:
+										emu_mode = EMU_MOUSE;
+										break;
+
+									case 2:
+										emu_mode = EMU_JOY0;
+										break;
+
+									case 3:
+										emu_mode = EMU_JOY1;
+										break;
+
+									case 4:
+										emu_mode = EMU_NONE;
+										break;
+
+									default:
+										emu_mode = (emu_mode+1)&3;
+										break;
+								}
+
 								if(emu_mode == EMU_MOUSE || emu_mode == EMU_JOY0) set_kbd_led(HID_LED_NUM_LOCK, true);
 									else set_kbd_led(HID_LED_NUM_LOCK, false);