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/* wiikeyboard.c: routines for dealing with the Wii USB keyboard
Copyright (c) 2008 Bjoern Giesler
$Id: wiikeyboard.c 4109 2009-12-27 06:15:10Z fredm $
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Author contact information:
E-mail: bjoern@giesler.de
*/
#define _POSIX_THREADS
#include <config.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "display.h"
#include "fuse.h"
#include "keyboard.h"
#include "machine.h"
#include "settings.h"
#include "snapshot.h"
#include "spectrum.h"
#include "tape.h"
#include "ui/ui.h"
#include <ogc/lwp.h>
#include <ogc/mutex.h>
#include <ogc/ipc.h>
typedef struct {
u32 msgtype;
u32 unknown1;
u8 modifiers;
u8 unknown2;
u8 keys[6];
} wii_kbd_event;
static s32 kbd = -1;
static lwp_t kbdthread;
static mutex_t kbdmutex;
#define QUEUELEN 100
static input_event_t queue[QUEUELEN];
static int queuepos = 0;
static input_event_t releasequeue[QUEUELEN];
static int releasequeuepos = 0;
static int
post_modifier( input_event_t* event,
u8 old, u8 new, u8 modifier, input_key spectrum_key )
{
if( (old & modifier) && !(new & modifier) ) {
event->type = INPUT_EVENT_KEYRELEASE;
event->types.key.native_key = modifier;
event->types.key.spectrum_key = spectrum_key;
return 0;
} else if( !(old & modifier) && (new & modifier) ) {
event->type = INPUT_EVENT_KEYPRESS;
event->types.key.native_key = modifier;
event->types.key.spectrum_key = spectrum_key;
return 0;
}
return 1;
}
static void*
kbdthread_fn( void *arg )
{
wii_kbd_event event, oldevent;
int i, j, found;
memset( &event, 0, sizeof(event) );
memset( &oldevent, 0, sizeof(oldevent) );
while( kbd != -1 ) {
IOS_Ioctl( kbd, 0, NULL, 0, &event, sizeof(event) );
/* skip connect (0) and disconnect (1) events */
if( event.msgtype != 2 ) continue;
input_event_t fuse_event;
LWP_MutexLock( kbdmutex );
#define POSTMODIFIER(wiikey, speckey) \
if(queuepos < QUEUELEN) \
if(post_modifier(queue + queuepos, \
oldevent.modifiers, event.modifiers, \
wiikey, speckey) == 0) \
queuepos++
POSTMODIFIER( 0x01, INPUT_KEY_Control_L );
POSTMODIFIER( 0x02, INPUT_KEY_Shift_L );
POSTMODIFIER( 0x04, INPUT_KEY_Alt_L );
POSTMODIFIER( 0x08, INPUT_KEY_Super_L );
POSTMODIFIER( 0x10, INPUT_KEY_Control_R );
POSTMODIFIER( 0x20, INPUT_KEY_Shift_R );
POSTMODIFIER( 0x40, INPUT_KEY_Alt_R );
POSTMODIFIER( 0x80, INPUT_KEY_Super_R );
#undef POSTMODIFIER
/* post keyreleases: old keys that have no new keys */
fuse_event.type = INPUT_EVENT_KEYRELEASE;
for(i=0; i<6; i++) {
if(oldevent.keys[i] == 0) break;
found = 0;
for( j=0; j<6; j++ ) {
if(event.keys[j] == oldevent.keys[i]) {
found = 1;
break;
}
}
if( !found ) {
fuse_event.types.key.spectrum_key = keysyms_remap(oldevent.keys[i]);
fuse_event.types.key.native_key = fuse_event.types.key.spectrum_key;
if( queuepos >= QUEUELEN ) {
ui_error( UI_ERROR_WARNING, "%s: keyboard queue full", __func__ );
continue;
}
queue[queuepos++] = fuse_event;
continue;
}
}
fuse_event.type = INPUT_EVENT_KEYPRESS;
for( i=0; i<6; i++ ) {
if(event.keys[i] == 0) break;
found = 0;
for( j=0; j<6; j++ ) {
if(oldevent.keys[j] == event.keys[i]) {
found = 1;
break;
}
}
if( !found ) {
fuse_event.types.key.spectrum_key = keysyms_remap( event.keys[i] );
fuse_event.types.key.native_key = fuse_event.types.key.spectrum_key;
if( queuepos >= QUEUELEN ) {
ui_error( UI_ERROR_WARNING, "%s: keyboard queue full", __func__ );
continue;
}
queue[queuepos++] = fuse_event;
}
}
LWP_MutexUnlock( kbdmutex );
oldevent = event;
}
return NULL;
}
int
wiikeyboard_init( void )
{
kbd = IOS_Open( "/dev/usb/kbd", IPC_OPEN_RW );
if( kbd < 0 ) return kbd;
if( LWP_MutexInit(&kbdmutex, 0) != 0 ||
LWP_CreateThread(&kbdthread, kbdthread_fn, NULL, NULL, 0, 80) != 0) {
IOS_Close(kbd);
return 1;
}
return 0;
}
int wiikeyboard_end(void)
{
if( kbd >= 0 ) IOS_Close(kbd);
kbd = -1;
return 0;
}
void
keyboard_update( void )
{
int i;
for( i=0; i<releasequeuepos; i++ ) input_event(&(releasequeue[i]));
releasequeuepos = 0;
LWP_MutexLock( kbdmutex );
for(i=0; i<queuepos; i++) {
if( queue[i].type == INPUT_EVENT_KEYRELEASE )
releasequeue[releasequeuepos++] = queue[i];
else
input_event( &(queue[i]) );
}
queuepos = 0;
LWP_MutexUnlock( kbdmutex );
}
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