motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-01 23:03:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

Luminary board input support.

Browse source 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3689 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
pbrook 2007-11-18 14:36:08 +00:00
parent f090c9d4ad
commit cf0dbb2115
5 changed files with 102 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

66
hw/stellaris_input.c Normal file
View file

@ -0,0 +1,66 @@
/*
* 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"
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;
}
/* 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;
qemu_add_kbd_event_handler(stellaris_gamepad_put_key, s);
}