[libpicofe.git] / 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_flush_cache(void)
{
}

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

void gp2x_memcpy_buffers(int buffers, void *data, int offset, int len)
{
	if ((char *)gp2x_screen + offset != data)
		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*2);
}

/* 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, int A_SNs_curve)
{
}

void set_LCD_custom_rate(int rate)
{
}

void unset_LCD_custom_rate(void)
{
}

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


int mmuunhack(void)
{
	return 0;
}


/* misc */
void spend_cycles(int c)
{
	usleep(c/200);
}
Commit	Line	Data
720ee7f6	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);
af6e9c49	167	memset(gp2x_screen, 0, 3202402 + 320*2);
720ee7f6	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
e5d315a5	240	void gp2x_video_flip2(void)
	241	{
	242	gp2x_video_flip();
	243	}
	244
720ee7f6	245	void gp2x_video_changemode(int bpp)
	246	{
	247	current_bpp = bpp;
	248	}
	249
e5d315a5	250	void gp2x_video_changemode2(int bpp)
	251	{
	252	current_bpp = bpp;
	253	}
	254
720ee7f6	255	void gp2x_video_setpalette(int *pal, int len)
	256	{
	257	memcpy(current_pal, pal, len*4);
	258	}
	259
13059a60	260	void gp2x_video_flush_cache(void)
	261	{
	262	}
	263
79cad122	264	void gp2x_video_RGB_setscaling(int v_offs, int W, int H)
720ee7f6	265	{
	266	}
	267
dccc2bd0	268	void gp2x_memcpy_buffers(int buffers, void *data, int offset, int len)
dccc2bd0	269	{
13059a60	270	if ((char *)gp2x_screen + offset != data)
13059a60	271	memcpy((char *)gp2x_screen + offset, data, len);
dccc2bd0	272	}
dccc2bd0	273
720ee7f6	274	void gp2x_memcpy_all_buffers(void *data, int offset, int len)
	275	{
	276	memcpy((char *)gp2x_screen + offset, data, len);
	277	}
	278
	279
	280	void gp2x_memset_all_buffers(int offset, int byte, int len)
	281	{
	282	memset((char *)gp2x_screen + offset, byte, len);
	283	}
	284
e5d315a5	285	void gp2x_pd_clone_buffer2(void)
e5d315a5	286	{
13059a60	287	memset(gp2x_screen, 0, 3202402);
e5d315a5	288	}
720ee7f6	289
	290	/* sound */
	291	static int s_oldrate = 0, s_oldbits = 0, s_oldstereo = 0;
	292
	293	void gp2x_start_sound(int rate, int bits, int stereo)
	294	{
	295	int frag = 0, bsize, buffers;
	296
	297	// if no settings change, we don't need to do anything
	298	if (rate == s_oldrate && s_oldbits == bits && s_oldstereo == stereo) return;
	299
	300	if (sounddev > 0) close(sounddev);
	301	sounddev = open("/dev/dsp", O_WRONLY\|O_ASYNC);
	302	if (sounddev == -1)
	303	printf("open(\"/dev/dsp\") failed with %i\n", errno);
	304
	305	ioctl(sounddev, SNDCTL_DSP_SPEED, &rate);
	306	ioctl(sounddev, SNDCTL_DSP_SETFMT, &bits);
	307	ioctl(sounddev, SNDCTL_DSP_STEREO, &stereo);
	308	// calculate buffer size
	309	buffers = 16;
	310	bsize = rate / 32;
	311	if (rate > 22050) { bsize=4; buffers=2; } // 44k mode seems to be very demanding
	312	while ((bsize>>=1)) frag++;
	313	frag \|= buffers<<16; // 16 buffers
	314	ioctl(sounddev, SNDCTL_DSP_SETFRAGMENT, &frag);
	315	printf("gp2x_set_sound: %i/%ibit/%s, %i buffers of %i bytes\n",
	316	rate, bits, stereo?"stereo":"mono", frag>>16, 1<<(frag&0xffff));
	317
	318	s_oldrate = rate; s_oldbits = bits; s_oldstereo = stereo;
	319	}
	320
	321	void gp2x_sound_write(void *buff, int len)
	322	{
	323	write(sounddev, buff, len);
	324	}
	325
598e7c06	326	void gp2x_sound_sync(void)
	327	{
	328	ioctl(sounddev, SOUND_PCM_SYNC, 0);
	329	}
	330
720ee7f6	331	void gp2x_sound_volume(int l, int r)
	332	{
	333	l=l<0?0:l; l=l>255?255:l; r=r<0?0:r; r=r>255?255:r;
	334	l<<=8; l\|=r;
	335	ioctl(mixerdev, SOUND_MIXER_WRITE_PCM, &l); /SOUND_MIXER_WRITE_VOLUME/
	336	}
	337
	338	/* joy */
	339	unsigned long gp2x_joystick_read(int allow_usb_joy)
	340	{
	341	unsigned long value = current_keys;
	342	int i;
	343
	344	if (allow_usb_joy && num_of_joys > 0) {
	345	// check the usb joy as well..
	346	gp2x_usbjoy_update();
	347	for (i = 0; i < num_of_joys; i++)
	348	value \|= gp2x_usbjoy_check(i);
	349	}
	350
	351	return value;
	352	}
	353
	354	/* 940 */
	355	int crashed_940 = 0;
	356	void Pause940(int yes)
	357	{
	358	}
	359
8dfb9fd5	360	void Reset940(int yes, int bank)
720ee7f6	361	{
	362	}
	363
	364	/* faking gp2x cpuctrl.c */
	365	void cpuctrl_init(void)
	366	{
	367	}
	368
	369	void cpuctrl_deinit(void)
	370	{
	371	}
	372
	373	void set_FCLK(unsigned MHZ)
	374	{
	375	}
	376
	377	void Disable_940(void)
	378	{
	379	}
	380
	381	void gp2x_video_wait_vsync(void)
	382	{
	383	}
	384
	385	void set_RAM_Timings(int tRC, int tRAS, int tWR, int tMRD, int tRFC, int tRP, int tRCD)
	386	{
	387	}
	388
55a951dd	389	void set_gamma(int g100, int A_SNs_curve)
720ee7f6	390	{
	391	}
	392
59633198	393	void set_LCD_custom_rate(int rate)
	394	{
	395	}
	396
	397	void unset_LCD_custom_rate(void)
	398	{
	399	}
720ee7f6	400
	401	/* squidgehack.c */
	402	int mmuhack(void)
	403	{
	404	return 0;
	405	}
	406
	407
	408	int mmuunhack(void)
	409	{
	410	return 0;
	411	}
	412
	413
	414	/* misc */
	415	void spend_cycles(int c)
	416	{
46ede6a6	417	usleep(c/200);
720ee7f6	418	}
	419
	420
	421