[picodrive.git] / platform / linux / gp2x.c

/* faking/emulating gp2x.c by using gtk */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>
#include <gtk/gtk.h>

#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/soundcard.h>
#include <fcntl.h>
#include <errno.h>

#include "../gp2x/emu.h"
#include "../gp2x/gp2x.h"
#include "../gp2x/usbjoy.h"
#include "../gp2x/version.h"

void *gp2x_screen;
static int current_bpp = 8;
static int current_pal[256];
static unsigned long current_keys = 0;
static int sounddev = 0, mixerdev = 0;
static const char *verstring = "PicoDrive " VERSION;

// dummies
char *ext_menu = 0, *ext_state = 0;

/* gtk */
struct gtk_global_struct
{
        GtkWidget *window;
        GtkWidget *pixmap1;
} gtk_items;


static gboolean delete_event (GtkWidget *widget, GdkEvent *event, gpointer data)
{
	return FALSE;
}

static void destroy (GtkWidget *widget, gpointer data)
{
	gtk_main_quit ();
}

static gint key_press_event (GtkWidget *widget, GdkEventKey *event)
{
	switch (event->hardware_keycode)
	{
		case 0x62: current_keys |= GP2X_UP;    break;
		case 0x68: current_keys |= GP2X_DOWN;  break;
		case 0x64: current_keys |= GP2X_LEFT;  break;
		case 0x66: current_keys |= GP2X_RIGHT; break;
		case 0x24: current_keys |= GP2X_START; break; // enter
		case 0x23: current_keys |= GP2X_SELECT;break; // ]
		case 0x34: current_keys |= GP2X_A;     break; // z
		case 0x35: current_keys |= GP2X_X;     break; // x
		case 0x36: current_keys |= GP2X_B;     break; // c
		case 0x37: current_keys |= GP2X_Y;     break; // v
		case 0x27: current_keys |= GP2X_L;     break; // s
		case 0x28: current_keys |= GP2X_R;     break; // d
		case 0x29: current_keys |= GP2X_PUSH;  break; // f
		case 0x18: current_keys |= GP2X_VOL_DOWN;break; // q
		case 0x19: current_keys |= GP2X_VOL_UP;break; // w
	}

	return 0;
}

static gint key_release_event (GtkWidget *widget, GdkEventKey *event)
{
	switch (event->hardware_keycode)
	{
		case 0x62: current_keys &= ~GP2X_UP;    break;
		case 0x68: current_keys &= ~GP2X_DOWN;  break;
		case 0x64: current_keys &= ~GP2X_LEFT;  break;
		case 0x66: current_keys &= ~GP2X_RIGHT; break;
		case 0x24: current_keys &= ~GP2X_START; break; // enter
		case 0x23: current_keys &= ~GP2X_SELECT;break; // ]
		case 0x34: current_keys &= ~GP2X_A;     break; // z
		case 0x35: current_keys &= ~GP2X_X;     break; // x
		case 0x36: current_keys &= ~GP2X_B;     break; // c
		case 0x37: current_keys &= ~GP2X_Y;     break; // v
		case 0x27: current_keys &= ~GP2X_L;     break; // s
		case 0x28: current_keys &= ~GP2X_R;     break; // d
		case 0x29: current_keys &= ~GP2X_PUSH;  break; // f
		case 0x18: current_keys &= ~GP2X_VOL_DOWN;break; // q
		case 0x19: current_keys &= ~GP2X_VOL_UP;break; // w
	}

	return 0;
}

static void *gtk_threadf(void *none)
{
	gtk_main();

	printf("linux: gtk thread finishing\n");
	engineState = PGS_Quit;

	return NULL;
}

static void gtk_initf(void)
{
	int argc = 0;
	char *argv[] = { "" };
	GtkWidget *box;
	pthread_t gtk_thread;

	g_thread_init (NULL);
	gdk_threads_init ();
	gdk_set_locale ();
	gtk_init (&argc, (char ***) &argv);

	/* create new window */
	gtk_items.window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
	g_signal_connect (G_OBJECT (gtk_items.window), "delete_event",
			G_CALLBACK (delete_event), NULL);

	g_signal_connect (G_OBJECT (gtk_items.window), "destroy",
			G_CALLBACK (destroy), NULL);

	g_signal_connect (G_OBJECT (gtk_items.window), "key_press_event",
			G_CALLBACK (key_press_event), NULL);

	g_signal_connect (G_OBJECT (gtk_items.window), "key_release_event",
			G_CALLBACK (key_release_event), NULL);

	gtk_container_set_border_width (GTK_CONTAINER (gtk_items.window), 2);
	gtk_window_set_title ((GtkWindow *) gtk_items.window, verstring);

	box = gtk_hbox_new(FALSE, 0);
	gtk_widget_show(box);
	gtk_container_add (GTK_CONTAINER (gtk_items.window), box);

	/* live pixmap */
	gtk_items.pixmap1 = gtk_image_new ();
	gtk_container_add (GTK_CONTAINER (box), gtk_items.pixmap1);
	gtk_widget_show (gtk_items.pixmap1);
	gtk_widget_set_size_request (gtk_items.pixmap1, 320, 240);

	gtk_widget_show  (gtk_items.window);

	// pthread_mutex_init (&thr_mutex, NULL);
	// pthread_mutex_lock (&thr_mutex);
	// pthread_mutex_init (&scanner_muttex, NULL);

	pthread_create(&gtk_thread, NULL, gtk_threadf, NULL);
}

void finalize_image(guchar *pixels, gpointer data)
{
	free(pixels);
}

/* --- */

void gp2x_init(void)
{
	printf("entering init()\n"); fflush(stdout);

	gp2x_screen = malloc(320*240*2 + 320*2);
	memset(gp2x_screen, 0, 320*240*2 + 320*2);

	// snd
  	mixerdev = open("/dev/mixer", O_RDWR);
	if (mixerdev == -1)
		printf("open(\"/dev/mixer\") failed with %i\n", errno);

	gtk_initf();

	gp2x_usbjoy_init();

	printf("exitting init()\n"); fflush(stdout);
}

void gp2x_deinit(void)
{
	free(gp2x_screen);
	if (sounddev > 0) close(sounddev);
	close(mixerdev);
	gp2x_usbjoy_deinit();
}

/* video */
void gp2x_video_flip(void)
{
	GdkPixbuf	*pixbuf;
	unsigned char	*image;
	int		i;

	gdk_threads_enter();

	image = malloc (320*240*3);
	if (image == NULL)
	{
		gdk_threads_leave();
		return;
	}

	if (current_bpp == 8)
	{
		unsigned char *pixels = gp2x_screen;
		int pix;

		for (i = 0; i < 320*240; i++)
		{
			pix = current_pal[pixels[i]];
			image[3 * i + 0] = pix >> 16;
			image[3 * i + 1] = pix >>  8;
			image[3 * i + 2] = pix;
		}
	}
	else
	{
		unsigned short *pixels = gp2x_screen;

		for (i = 0; i < 320*240; i++)
		{
			/*  in:           rrrr rggg gggb bbbb */
			/* out: rrrr r000 gggg gg00 bbbb b000 */
			image[3 * i + 0] = (pixels[i] >> 8) & 0xf8;
			image[3 * i + 1] = (pixels[i] >> 3) & 0xfc;
			image[3 * i + 2] = (pixels[i] << 3);
		}
	}

	pixbuf = gdk_pixbuf_new_from_data (image, GDK_COLORSPACE_RGB,
			FALSE, 8, 320, 240, 320*3, finalize_image, NULL);
	gtk_image_set_from_pixbuf (GTK_IMAGE (gtk_items.pixmap1), pixbuf);
	g_object_unref (pixbuf);

	gdk_threads_leave();
}

void gp2x_video_flip2(void)
{
	gp2x_video_flip();
}

void gp2x_video_changemode(int bpp)
{
	current_bpp = bpp;
}

void gp2x_video_changemode2(int bpp)
{
	current_bpp = bpp;
}

void gp2x_video_setpalette(int *pal, int len)
{
	memcpy(current_pal, pal, len*4);
}

void gp2x_video_RGB_setscaling(int v_offs, int W, int H)
{
}

void gp2x_memcpy_buffers(int buffers, void *data, int offset, int len)
{
	memcpy((char *)gp2x_screen + offset, data, len);
}

void gp2x_memcpy_all_buffers(void *data, int offset, int len)
{
	memcpy((char *)gp2x_screen + offset, data, len);
}


void gp2x_memset_all_buffers(int offset, int byte, int len)
{
	memset((char *)gp2x_screen + offset, byte, len);
}

void gp2x_pd_clone_buffer2(void)
{
	memset(gp2x_screen, 0, 320*240);
}

/* sound */
static int s_oldrate = 0, s_oldbits = 0, s_oldstereo = 0;

void gp2x_start_sound(int rate, int bits, int stereo)
{
	int frag = 0, bsize, buffers;

	// if no settings change, we don't need to do anything
	if (rate == s_oldrate && s_oldbits == bits && s_oldstereo == stereo) return;

	if (sounddev > 0) close(sounddev);
	sounddev = open("/dev/dsp", O_WRONLY|O_ASYNC);
	if (sounddev == -1)
		printf("open(\"/dev/dsp\") failed with %i\n", errno);

	ioctl(sounddev, SNDCTL_DSP_SPEED,  &rate);
	ioctl(sounddev, SNDCTL_DSP_SETFMT, &bits);
	ioctl(sounddev, SNDCTL_DSP_STEREO, &stereo);
	// calculate buffer size
	buffers = 16;
	bsize = rate / 32;
	if (rate > 22050) { bsize*=4; buffers*=2; } // 44k mode seems to be very demanding
	while ((bsize>>=1)) frag++;
	frag |= buffers<<16; // 16 buffers
	ioctl(sounddev, SNDCTL_DSP_SETFRAGMENT, &frag);
	printf("gp2x_set_sound: %i/%ibit/%s, %i buffers of %i bytes\n",
		rate, bits, stereo?"stereo":"mono", frag>>16, 1<<(frag&0xffff));

	s_oldrate = rate; s_oldbits = bits; s_oldstereo = stereo;
}

void gp2x_sound_write(void *buff, int len)
{
	write(sounddev, buff, len);
}

void gp2x_sound_sync(void)
{
	ioctl(sounddev, SOUND_PCM_SYNC, 0);
}

void gp2x_sound_volume(int l, int r)
{
 	l=l<0?0:l; l=l>255?255:l; r=r<0?0:r; r=r>255?255:r;
 	l<<=8; l|=r;
 	ioctl(mixerdev, SOUND_MIXER_WRITE_PCM, &l); /*SOUND_MIXER_WRITE_VOLUME*/
}

/* joy */
unsigned long gp2x_joystick_read(int allow_usb_joy)
{
	unsigned long value = current_keys;
	int i;

	if (allow_usb_joy && num_of_joys > 0) {
		// check the usb joy as well..
		gp2x_usbjoy_update();
		for (i = 0; i < num_of_joys; i++)
			value |= gp2x_usbjoy_check(i);
	}

	return value;
}

/* 940 */
int crashed_940 = 0;
void Pause940(int yes)
{
}

void Reset940(int yes, int bank)
{
}

/* faking gp2x cpuctrl.c */
void cpuctrl_init(void)
{
}

void cpuctrl_deinit(void)
{
}

void set_FCLK(unsigned MHZ)
{
}

void Disable_940(void)
{
}

void gp2x_video_wait_vsync(void)
{
}

void set_RAM_Timings(int tRC, int tRAS, int tWR, int tMRD, int tRFC, int tRP, int tRCD)
{
}

void set_gamma(int g100)
{
}


/* squidgehack.c */
int mmuhack(void)
{
	return 0;
}


int mmuunhack(void)
{
	return 0;
}


/* misc */
void spend_cycles(int c)
{
	usleep(c/200);
}
Commit	Line	Data
	1	/* faking/emulating gp2x.c by using gtk */
	2	#include <stdio.h>
	3	#include <stdlib.h>
	4	#include <string.h>
	5	#include <pthread.h>
	6	#include <gtk/gtk.h>
	7
	8	#include <unistd.h>
	9	#include <sys/types.h>
	10	#include <sys/stat.h>
	11	#include <sys/ioctl.h>
	12	#include <sys/soundcard.h>
	13	#include <fcntl.h>
	14	#include <errno.h>
	15
	16	#include "../gp2x/emu.h"
	17	#include "../gp2x/gp2x.h"
	18	#include "../gp2x/usbjoy.h"
	19	#include "../gp2x/version.h"
	20
	21	void *gp2x_screen;
	22	static int current_bpp = 8;
	23	static int current_pal[256];
	24	static unsigned long current_keys = 0;
	25	static int sounddev = 0, mixerdev = 0;
	26	static const char *verstring = "PicoDrive " VERSION;
	27
	28	// dummies
	29	char ext_menu = 0, ext_state = 0;
	30
	31	/* gtk */
	32	struct gtk_global_struct
	33	{
	34	GtkWidget *window;
	35	GtkWidget *pixmap1;
	36	} gtk_items;
	37
	38
	39	static gboolean delete_event (GtkWidget widget, GdkEvent event, gpointer data)
	40	{
	41	return FALSE;
	42	}
	43
	44	static void destroy (GtkWidget *widget, gpointer data)
	45	{
	46	gtk_main_quit ();
	47	}
	48
	49	static gint key_press_event (GtkWidget widget, GdkEventKey event)
	50	{
	51	switch (event->hardware_keycode)
	52	{
	53	case 0x62: current_keys \|= GP2X_UP; break;
	54	case 0x68: current_keys \|= GP2X_DOWN; break;
	55	case 0x64: current_keys \|= GP2X_LEFT; break;
	56	case 0x66: current_keys \|= GP2X_RIGHT; break;
	57	case 0x24: current_keys \|= GP2X_START; break; // enter
	58	case 0x23: current_keys \|= GP2X_SELECT;break; // ]
	59	case 0x34: current_keys \|= GP2X_A; break; // z
	60	case 0x35: current_keys \|= GP2X_X; break; // x
	61	case 0x36: current_keys \|= GP2X_B; break; // c
	62	case 0x37: current_keys \|= GP2X_Y; break; // v
	63	case 0x27: current_keys \|= GP2X_L; break; // s
	64	case 0x28: current_keys \|= GP2X_R; break; // d
	65	case 0x29: current_keys \|= GP2X_PUSH; break; // f
	66	case 0x18: current_keys \|= GP2X_VOL_DOWN;break; // q
	67	case 0x19: current_keys \|= GP2X_VOL_UP;break; // w
	68	}
	69
	70	return 0;
	71	}
	72
	73	static gint key_release_event (GtkWidget widget, GdkEventKey event)
	74	{
	75	switch (event->hardware_keycode)
	76	{
	77	case 0x62: current_keys &= ~GP2X_UP; break;
	78	case 0x68: current_keys &= ~GP2X_DOWN; break;
	79	case 0x64: current_keys &= ~GP2X_LEFT; break;
	80	case 0x66: current_keys &= ~GP2X_RIGHT; break;
	81	case 0x24: current_keys &= ~GP2X_START; break; // enter
	82	case 0x23: current_keys &= ~GP2X_SELECT;break; // ]
	83	case 0x34: current_keys &= ~GP2X_A; break; // z
	84	case 0x35: current_keys &= ~GP2X_X; break; // x
	85	case 0x36: current_keys &= ~GP2X_B; break; // c
	86	case 0x37: current_keys &= ~GP2X_Y; break; // v
	87	case 0x27: current_keys &= ~GP2X_L; break; // s
	88	case 0x28: current_keys &= ~GP2X_R; break; // d
	89	case 0x29: current_keys &= ~GP2X_PUSH; break; // f
	90	case 0x18: current_keys &= ~GP2X_VOL_DOWN;break; // q
	91	case 0x19: current_keys &= ~GP2X_VOL_UP;break; // w
	92	}
	93
	94	return 0;
	95	}
	96
	97	static void gtk_threadf(void none)
	98	{
	99	gtk_main();
	100
	101	printf("linux: gtk thread finishing\n");
	102	engineState = PGS_Quit;
	103
	104	return NULL;
	105	}
	106
	107	static void gtk_initf(void)
	108	{
	109	int argc = 0;
	110	char *argv[] = { "" };
	111	GtkWidget *box;
	112	pthread_t gtk_thread;
	113
	114	g_thread_init (NULL);
	115	gdk_threads_init ();
	116	gdk_set_locale ();
	117	gtk_init (&argc, (char ***) &argv);
	118
	119	/* create new window */
	120	gtk_items.window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
	121	g_signal_connect (G_OBJECT (gtk_items.window), "delete_event",
	122	G_CALLBACK (delete_event), NULL);
	123
	124	g_signal_connect (G_OBJECT (gtk_items.window), "destroy",
	125	G_CALLBACK (destroy), NULL);
	126
	127	g_signal_connect (G_OBJECT (gtk_items.window), "key_press_event",
	128	G_CALLBACK (key_press_event), NULL);
	129
	130	g_signal_connect (G_OBJECT (gtk_items.window), "key_release_event",
	131	G_CALLBACK (key_release_event), NULL);
	132
	133	gtk_container_set_border_width (GTK_CONTAINER (gtk_items.window), 2);
	134	gtk_window_set_title ((GtkWindow *) gtk_items.window, verstring);
	135
	136	box = gtk_hbox_new(FALSE, 0);
	137	gtk_widget_show(box);
	138	gtk_container_add (GTK_CONTAINER (gtk_items.window), box);
	139
	140	/* live pixmap */
	141	gtk_items.pixmap1 = gtk_image_new ();
	142	gtk_container_add (GTK_CONTAINER (box), gtk_items.pixmap1);
	143	gtk_widget_show (gtk_items.pixmap1);
	144	gtk_widget_set_size_request (gtk_items.pixmap1, 320, 240);
	145
	146	gtk_widget_show (gtk_items.window);
	147
	148	// pthread_mutex_init (&thr_mutex, NULL);
	149	// pthread_mutex_lock (&thr_mutex);
	150	// pthread_mutex_init (&scanner_muttex, NULL);
	151
	152	pthread_create(&gtk_thread, NULL, gtk_threadf, NULL);
	153	}
	154
	155	void finalize_image(guchar *pixels, gpointer data)
	156	{
	157	free(pixels);
	158	}
	159
	160	/* --- */
	161
	162	void gp2x_init(void)
	163	{
	164	printf("entering init()\n"); fflush(stdout);
	165
	166	gp2x_screen = malloc(3202402 + 320*2);
	167	memset(gp2x_screen, 0, 3202402 + 320*2);
	168
	169	// snd
	170	mixerdev = open("/dev/mixer", O_RDWR);
	171	if (mixerdev == -1)
	172	printf("open(\"/dev/mixer\") failed with %i\n", errno);
	173
	174	gtk_initf();
	175
	176	gp2x_usbjoy_init();
	177
	178	printf("exitting init()\n"); fflush(stdout);
	179	}
	180
	181	void gp2x_deinit(void)
	182	{
	183	free(gp2x_screen);
	184	if (sounddev > 0) close(sounddev);
	185	close(mixerdev);
	186	gp2x_usbjoy_deinit();
	187	}
	188
	189	/* video */
	190	void gp2x_video_flip(void)
	191	{
	192	GdkPixbuf *pixbuf;
	193	unsigned char *image;
	194	int i;
	195
	196	gdk_threads_enter();
	197
	198	image = malloc (3202403);
	199	if (image == NULL)
	200	{
	201	gdk_threads_leave();
	202	return;
	203	}
	204
	205	if (current_bpp == 8)
	206	{
	207	unsigned char *pixels = gp2x_screen;
	208	int pix;
	209
	210	for (i = 0; i < 320*240; i++)
	211	{
	212	pix = current_pal[pixels[i]];
	213	image[3 * i + 0] = pix >> 16;
	214	image[3 * i + 1] = pix >> 8;
	215	image[3 * i + 2] = pix;
	216	}
	217	}
	218	else
	219	{
	220	unsigned short *pixels = gp2x_screen;
	221
	222	for (i = 0; i < 320*240; i++)
	223	{
	224	/* in: rrrr rggg gggb bbbb */
	225	/* out: rrrr r000 gggg gg00 bbbb b000 */
	226	image[3 * i + 0] = (pixels[i] >> 8) & 0xf8;
	227	image[3 * i + 1] = (pixels[i] >> 3) & 0xfc;
	228	image[3 * i + 2] = (pixels[i] << 3);
	229	}
	230	}
	231
	232	pixbuf = gdk_pixbuf_new_from_data (image, GDK_COLORSPACE_RGB,
	233	FALSE, 8, 320, 240, 320*3, finalize_image, NULL);
	234	gtk_image_set_from_pixbuf (GTK_IMAGE (gtk_items.pixmap1), pixbuf);
	235	g_object_unref (pixbuf);
	236
	237	gdk_threads_leave();
	238	}
	239
	240	void gp2x_video_flip2(void)
	241	{
	242	gp2x_video_flip();
	243	}
	244
	245	void gp2x_video_changemode(int bpp)
	246	{
	247	current_bpp = bpp;
	248	}
	249
	250	void gp2x_video_changemode2(int bpp)
	251	{
	252	current_bpp = bpp;
	253	}
	254
	255	void gp2x_video_setpalette(int *pal, int len)
	256	{
	257	memcpy(current_pal, pal, len*4);
	258	}
	259
	260	void gp2x_video_RGB_setscaling(int v_offs, int W, int H)
	261	{
	262	}
	263
	264	void gp2x_memcpy_buffers(int buffers, void *data, int offset, int len)
	265	{
	266	memcpy((char *)gp2x_screen + offset, data, len);
	267	}
	268
	269	void gp2x_memcpy_all_buffers(void *data, int offset, int len)
	270	{
	271	memcpy((char *)gp2x_screen + offset, data, len);
	272	}
	273
	274
	275	void gp2x_memset_all_buffers(int offset, int byte, int len)
	276	{
	277	memset((char *)gp2x_screen + offset, byte, len);
	278	}
	279
	280	void gp2x_pd_clone_buffer2(void)
	281	{
	282	memset(gp2x_screen, 0, 320*240);
	283	}
	284
	285	/* sound */
	286	static int s_oldrate = 0, s_oldbits = 0, s_oldstereo = 0;
	287
	288	void gp2x_start_sound(int rate, int bits, int stereo)
	289	{
	290	int frag = 0, bsize, buffers;
	291
	292	// if no settings change, we don't need to do anything
	293	if (rate == s_oldrate && s_oldbits == bits && s_oldstereo == stereo) return;
	294
	295	if (sounddev > 0) close(sounddev);
	296	sounddev = open("/dev/dsp", O_WRONLY\|O_ASYNC);
	297	if (sounddev == -1)
	298	printf("open(\"/dev/dsp\") failed with %i\n", errno);
	299
	300	ioctl(sounddev, SNDCTL_DSP_SPEED, &rate);
	301	ioctl(sounddev, SNDCTL_DSP_SETFMT, &bits);
	302	ioctl(sounddev, SNDCTL_DSP_STEREO, &stereo);
	303	// calculate buffer size
	304	buffers = 16;
	305	bsize = rate / 32;
	306	if (rate > 22050) { bsize=4; buffers=2; } // 44k mode seems to be very demanding
	307	while ((bsize>>=1)) frag++;
	308	frag \|= buffers<<16; // 16 buffers
	309	ioctl(sounddev, SNDCTL_DSP_SETFRAGMENT, &frag);
	310	printf("gp2x_set_sound: %i/%ibit/%s, %i buffers of %i bytes\n",
	311	rate, bits, stereo?"stereo":"mono", frag>>16, 1<<(frag&0xffff));
	312
	313	s_oldrate = rate; s_oldbits = bits; s_oldstereo = stereo;
	314	}
	315
	316	void gp2x_sound_write(void *buff, int len)
	317	{
	318	write(sounddev, buff, len);
	319	}
	320
	321	void gp2x_sound_sync(void)
	322	{
	323	ioctl(sounddev, SOUND_PCM_SYNC, 0);
	324	}
	325
	326	void gp2x_sound_volume(int l, int r)
	327	{
	328	l=l<0?0:l; l=l>255?255:l; r=r<0?0:r; r=r>255?255:r;
	329	l<<=8; l\|=r;
	330	ioctl(mixerdev, SOUND_MIXER_WRITE_PCM, &l); /SOUND_MIXER_WRITE_VOLUME/
	331	}
	332
	333	/* joy */
	334	unsigned long gp2x_joystick_read(int allow_usb_joy)
	335	{
	336	unsigned long value = current_keys;
	337	int i;
	338
	339	if (allow_usb_joy && num_of_joys > 0) {
	340	// check the usb joy as well..
	341	gp2x_usbjoy_update();
	342	for (i = 0; i < num_of_joys; i++)
	343	value \|= gp2x_usbjoy_check(i);
	344	}
	345
	346	return value;
	347	}
	348
	349	/* 940 */
	350	int crashed_940 = 0;
	351	void Pause940(int yes)
	352	{
	353	}
	354
	355	void Reset940(int yes, int bank)
	356	{
	357	}
	358
	359	/* faking gp2x cpuctrl.c */
	360	void cpuctrl_init(void)
	361	{
	362	}
	363
	364	void cpuctrl_deinit(void)
	365	{
	366	}
	367
	368	void set_FCLK(unsigned MHZ)
	369	{
	370	}
	371
	372	void Disable_940(void)
	373	{
	374	}
	375
	376	void gp2x_video_wait_vsync(void)
	377	{
	378	}
	379
	380	void set_RAM_Timings(int tRC, int tRAS, int tWR, int tMRD, int tRFC, int tRP, int tRCD)
	381	{
	382	}
	383
	384	void set_gamma(int g100)
	385	{
	386	}
	387
	388
	389	/* squidgehack.c */
	390	int mmuhack(void)
	391	{
	392	return 0;
	393	}
	394
	395
	396	int mmuunhack(void)
	397	{
	398	return 0;
	399	}
	400
	401
	402	/* misc */
	403	void spend_cycles(int c)
	404	{
	405	usleep(c/200);
	406	}
	407
	408
	409