--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/qemu-symbian-svp/hw/stellaris_input.c	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,92 @@
+/*
+ * Gamepad style buttons connected to IRQ/GPIO lines
+ *
+ * Copyright (c) 2007 CodeSourcery.
+ * Written by Paul Brook
+ *
+ * This code is licenced under the GPL.
+ */
+#include "hw.h"
+#include "devices.h"
+#include "console.h"
+#include "gui.h"
+
+typedef struct {
+    qemu_irq irq;
+    int keycode;
+    int pressed;
+} gamepad_button;
+
+typedef struct {
+    gamepad_button *buttons;
+    int num_buttons;
+    int extension;
+} gamepad_state;
+
+static void stellaris_gamepad_put_key(void * opaque, int keycode)
+{
+    gamepad_state *s = (gamepad_state *)opaque;
+    int i;
+    int down;
+
+    if (keycode == 0xe0 && !s->extension) {
+        s->extension = 0x80;
+        return;
+    }
+
+    down = (keycode & 0x80) == 0;
+    keycode = (keycode & 0x7f) | s->extension;
+
+    for (i = 0; i < s->num_buttons; i++) {
+        if (s->buttons[i].keycode == keycode
+                && s->buttons[i].pressed != down) {
+            s->buttons[i].pressed = down;
+            qemu_set_irq(s->buttons[i].irq, down);
+        }
+    }
+
+    s->extension = 0;
+}
+
+static void stellaris_gamepad_save(QEMUFile *f, void *opaque)
+{
+    gamepad_state *s = (gamepad_state *)opaque;
+    int i;
+
+    qemu_put_be32(f, s->extension);
+    for (i = 0; i < s->num_buttons; i++)
+        qemu_put_byte(f, s->buttons[i].pressed);
+}
+
+static int stellaris_gamepad_load(QEMUFile *f, void *opaque, int version_id)
+{
+    gamepad_state *s = (gamepad_state *)opaque;
+    int i;
+
+    if (version_id != 1)
+        return -EINVAL;
+
+    s->extension = qemu_get_be32(f);
+    for (i = 0; i < s->num_buttons; i++)
+        s->buttons[i].pressed = qemu_get_byte(f);
+
+    return 0;
+}
+
+/* Returns an array 5 ouput slots.  */
+void stellaris_gamepad_init(int n, qemu_irq *irq, const int *keycode)
+{
+    gamepad_state *s;
+    int i;
+
+    s = (gamepad_state *)qemu_mallocz(sizeof (gamepad_state));
+    s->buttons = (gamepad_button *)qemu_mallocz(n * sizeof (gamepad_button));
+    for (i = 0; i < n; i++) {
+        s->buttons[i].irq = irq[i];
+        s->buttons[i].keycode = keycode[i];
+    }
+    s->num_buttons = n;
+    gui_register_dev_key_callback(stellaris_gamepad_put_key, s);
+    register_savevm("stellaris_gamepad", -1, 1,
+                    stellaris_gamepad_save, stellaris_gamepad_load, s);
+}