[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"

#include "log_io.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
		case 0x2d: log_io_clear(); break; // k
		case 0x2e: log_io_dump();  break; // l
	}

	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
15b55b4e	21	#include "log_io.h"
15b55b4e	22
720ee7f6	23	void *gp2x_screen;
	24	static int current_bpp = 8;
	25	static int current_pal[256];
	26	static unsigned long current_keys = 0;
	27	static int sounddev = 0, mixerdev = 0;
	28	static const char *verstring = "PicoDrive " VERSION;
	29
	30	// dummies
	31	char ext_menu = 0, ext_state = 0;
	32
	33	/* gtk */
	34	struct gtk_global_struct
	35	{
	36	GtkWidget *window;
	37	GtkWidget *pixmap1;
	38	} gtk_items;
	39
	40
	41	static gboolean delete_event (GtkWidget widget, GdkEvent event, gpointer data)
	42	{
	43	return FALSE;
	44	}
	45
	46	static void destroy (GtkWidget *widget, gpointer data)
	47	{
	48	gtk_main_quit ();
	49	}
	50
	51	static gint key_press_event (GtkWidget widget, GdkEventKey event)
	52	{
	53	switch (event->hardware_keycode)
	54	{
	55	case 0x62: current_keys \|= GP2X_UP; break;
	56	case 0x68: current_keys \|= GP2X_DOWN; break;
	57	case 0x64: current_keys \|= GP2X_LEFT; break;
	58	case 0x66: current_keys \|= GP2X_RIGHT; break;
	59	case 0x24: current_keys \|= GP2X_START; break; // enter
	60	case 0x23: current_keys \|= GP2X_SELECT;break; // ]
	61	case 0x34: current_keys \|= GP2X_A; break; // z
	62	case 0x35: current_keys \|= GP2X_X; break; // x
	63	case 0x36: current_keys \|= GP2X_B; break; // c
	64	case 0x37: current_keys \|= GP2X_Y; break; // v
	65	case 0x27: current_keys \|= GP2X_L; break; // s
	66	case 0x28: current_keys \|= GP2X_R; break; // d
	67	case 0x29: current_keys \|= GP2X_PUSH; break; // f
	68	case 0x18: current_keys \|= GP2X_VOL_DOWN;break; // q
	69	case 0x19: current_keys \|= GP2X_VOL_UP;break; // w
15b55b4e	70	case 0x2d: log_io_clear(); break; // k
15b55b4e	71	case 0x2e: log_io_dump(); break; // l
720ee7f6	72	}
	73
	74	return 0;
	75	}
	76
	77	static gint key_release_event (GtkWidget widget, GdkEventKey event)
	78	{
	79	switch (event->hardware_keycode)
	80	{
	81	case 0x62: current_keys &= ~GP2X_UP; break;
	82	case 0x68: current_keys &= ~GP2X_DOWN; break;
	83	case 0x64: current_keys &= ~GP2X_LEFT; break;
	84	case 0x66: current_keys &= ~GP2X_RIGHT; break;
	85	case 0x24: current_keys &= ~GP2X_START; break; // enter
	86	case 0x23: current_keys &= ~GP2X_SELECT;break; // ]
	87	case 0x34: current_keys &= ~GP2X_A; break; // z
	88	case 0x35: current_keys &= ~GP2X_X; break; // x
	89	case 0x36: current_keys &= ~GP2X_B; break; // c
	90	case 0x37: current_keys &= ~GP2X_Y; break; // v
	91	case 0x27: current_keys &= ~GP2X_L; break; // s
	92	case 0x28: current_keys &= ~GP2X_R; break; // d
	93	case 0x29: current_keys &= ~GP2X_PUSH; break; // f
	94	case 0x18: current_keys &= ~GP2X_VOL_DOWN;break; // q
	95	case 0x19: current_keys &= ~GP2X_VOL_UP;break; // w
	96	}
	97
	98	return 0;
	99	}
	100
	101	static void gtk_threadf(void none)
	102	{
	103	gtk_main();
	104
	105	printf("linux: gtk thread finishing\n");
	106	engineState = PGS_Quit;
	107
	108	return NULL;
	109	}
	110
	111	static void gtk_initf(void)
	112	{
	113	int argc = 0;
	114	char *argv[] = { "" };
	115	GtkWidget *box;
	116	pthread_t gtk_thread;
	117
	118	g_thread_init (NULL);
	119	gdk_threads_init ();
	120	gdk_set_locale ();
	121	gtk_init (&argc, (char ***) &argv);
	122
	123	/* create new window */
	124	gtk_items.window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
	125	g_signal_connect (G_OBJECT (gtk_items.window), "delete_event",
	126	G_CALLBACK (delete_event), NULL);
	127
	128	g_signal_connect (G_OBJECT (gtk_items.window), "destroy",
	129	G_CALLBACK (destroy), NULL);
	130
	131	g_signal_connect (G_OBJECT (gtk_items.window), "key_press_event",
	132	G_CALLBACK (key_press_event), NULL);
	133
	134	g_signal_connect (G_OBJECT (gtk_items.window), "key_release_event",
	135	G_CALLBACK (key_release_event), NULL);
136
137	gtk_container_set_border_width (GTK_CONTAINER (gtk_items.window), 2);
138	gtk_window_set_title ((GtkWindow *) gtk_items.window, verstring);
139
140	box = gtk_hbox_new(FALSE, 0);
141	gtk_widget_show(box);
142	gtk_container_add (GTK_CONTAINER (gtk_items.window), box);
143
144	/* live pixmap */
145	gtk_items.pixmap1 = gtk_image_new ();
146	gtk_container_add (GTK_CONTAINER (box), gtk_items.pixmap1);
147	gtk_widget_show (gtk_items.pixmap1);
148	gtk_widget_set_size_request (gtk_items.pixmap1, 320, 240);
149
150	gtk_widget_show (gtk_items.window);
151
152	// pthread_mutex_init (&thr_mutex, NULL);
153	// pthread_mutex_lock (&thr_mutex);
154	// pthread_mutex_init (&scanner_muttex, NULL);
155
156	pthread_create(&gtk_thread, NULL, gtk_threadf, NULL);
157	}
158
159	void finalize_image(guchar *pixels, gpointer data)
160	{
161	free(pixels);
162	}
163
164	/* --- */
165
166	void gp2x_init(void)
167	{
168	printf("entering init()\n"); fflush(stdout);
169
170	gp2x_screen = malloc(3202402 + 320*2);
af6e9c49	171	memset(gp2x_screen, 0, 3202402 + 320*2);
720ee7f6	172
	173	// snd
	174	mixerdev = open("/dev/mixer", O_RDWR);
	175	if (mixerdev == -1)
	176	printf("open(\"/dev/mixer\") failed with %i\n", errno);
	177
	178	gtk_initf();
	179
	180	gp2x_usbjoy_init();
	181
	182	printf("exitting init()\n"); fflush(stdout);
	183	}
	184
	185	void gp2x_deinit(void)
	186	{
	187	free(gp2x_screen);
	188	if (sounddev > 0) close(sounddev);
	189	close(mixerdev);
	190	gp2x_usbjoy_deinit();
	191	}
	192
	193	/* video */
	194	void gp2x_video_flip(void)
	195	{
	196	GdkPixbuf *pixbuf;
	197	unsigned char *image;
	198	int i;
	199
	200	gdk_threads_enter();
	201
	202	image = malloc (3202403);
	203	if (image == NULL)
	204	{
	205	gdk_threads_leave();
	206	return;
	207	}
	208
	209	if (current_bpp == 8)
	210	{
	211	unsigned char *pixels = gp2x_screen;
	212	int pix;
	213
	214	for (i = 0; i < 320*240; i++)
	215	{
	216	pix = current_pal[pixels[i]];
	217	image[3 * i + 0] = pix >> 16;
	218	image[3 * i + 1] = pix >> 8;
	219	image[3 * i + 2] = pix;
	220	}
	221	}
	222	else
	223	{
	224	unsigned short *pixels = gp2x_screen;
	225
	226	for (i = 0; i < 320*240; i++)
	227	{
	228	/* in: rrrr rggg gggb bbbb */
	229	/* out: rrrr r000 gggg gg00 bbbb b000 */
	230	image[3 * i + 0] = (pixels[i] >> 8) & 0xf8;
	231	image[3 * i + 1] = (pixels[i] >> 3) & 0xfc;
	232	image[3 * i + 2] = (pixels[i] << 3);
	233	}
	234	}
	235
236	pixbuf = gdk_pixbuf_new_from_data (image, GDK_COLORSPACE_RGB,
237	FALSE, 8, 320, 240, 320*3, finalize_image, NULL);
238	gtk_image_set_from_pixbuf (GTK_IMAGE (gtk_items.pixmap1), pixbuf);
239	g_object_unref (pixbuf);
240
241	gdk_threads_leave();
242	}
243
e5d315a5	244	void gp2x_video_flip2(void)
	245	{
	246	gp2x_video_flip();
	247	}
	248
720ee7f6	249	void gp2x_video_changemode(int bpp)
	250	{
	251	current_bpp = bpp;
	252	}
	253
e5d315a5	254	void gp2x_video_changemode2(int bpp)
	255	{
	256	current_bpp = bpp;
	257	}
	258
720ee7f6	259	void gp2x_video_setpalette(int *pal, int len)
	260	{
	261	memcpy(current_pal, pal, len*4);
	262	}
	263
13059a60	264	void gp2x_video_flush_cache(void)
	265	{
	266	}
	267
79cad122	268	void gp2x_video_RGB_setscaling(int v_offs, int W, int H)
720ee7f6	269	{
	270	}
	271
dccc2bd0	272	void gp2x_memcpy_buffers(int buffers, void *data, int offset, int len)
dccc2bd0	273	{
13059a60	274	if ((char *)gp2x_screen + offset != data)
13059a60	275	memcpy((char *)gp2x_screen + offset, data, len);
dccc2bd0	276	}
dccc2bd0	277
720ee7f6	278	void gp2x_memcpy_all_buffers(void *data, int offset, int len)
	279	{
	280	memcpy((char *)gp2x_screen + offset, data, len);
	281	}
	282
	283
	284	void gp2x_memset_all_buffers(int offset, int byte, int len)
	285	{
	286	memset((char *)gp2x_screen + offset, byte, len);
	287	}
	288
e5d315a5	289	void gp2x_pd_clone_buffer2(void)
e5d315a5	290	{
13059a60	291	memset(gp2x_screen, 0, 3202402);
e5d315a5	292	}
720ee7f6	293
	294	/* sound */
	295	static int s_oldrate = 0, s_oldbits = 0, s_oldstereo = 0;
	296
	297	void gp2x_start_sound(int rate, int bits, int stereo)
	298	{
	299	int frag = 0, bsize, buffers;
	300
	301	// if no settings change, we don't need to do anything
	302	if (rate == s_oldrate && s_oldbits == bits && s_oldstereo == stereo) return;
	303
	304	if (sounddev > 0) close(sounddev);
	305	sounddev = open("/dev/dsp", O_WRONLY\|O_ASYNC);
	306	if (sounddev == -1)
	307	printf("open(\"/dev/dsp\") failed with %i\n", errno);
	308
	309	ioctl(sounddev, SNDCTL_DSP_SPEED, &rate);
	310	ioctl(sounddev, SNDCTL_DSP_SETFMT, &bits);
	311	ioctl(sounddev, SNDCTL_DSP_STEREO, &stereo);
	312	// calculate buffer size
	313	buffers = 16;
	314	bsize = rate / 32;
	315	if (rate > 22050) { bsize=4; buffers=2; } // 44k mode seems to be very demanding
	316	while ((bsize>>=1)) frag++;
	317	frag \|= buffers<<16; // 16 buffers
	318	ioctl(sounddev, SNDCTL_DSP_SETFRAGMENT, &frag);
	319	printf("gp2x_set_sound: %i/%ibit/%s, %i buffers of %i bytes\n",
	320	rate, bits, stereo?"stereo":"mono", frag>>16, 1<<(frag&0xffff));
	321
	322	s_oldrate = rate; s_oldbits = bits; s_oldstereo = stereo;
	323	}
	324
	325	void gp2x_sound_write(void *buff, int len)
	326	{
	327	write(sounddev, buff, len);
	328	}
	329
598e7c06	330	void gp2x_sound_sync(void)
	331	{
	332	ioctl(sounddev, SOUND_PCM_SYNC, 0);
	333	}
	334
720ee7f6	335	void gp2x_sound_volume(int l, int r)
	336	{
	337	l=l<0?0:l; l=l>255?255:l; r=r<0?0:r; r=r>255?255:r;
	338	l<<=8; l\|=r;
	339	ioctl(mixerdev, SOUND_MIXER_WRITE_PCM, &l); /SOUND_MIXER_WRITE_VOLUME/
	340	}
	341
	342	/* joy */
	343	unsigned long gp2x_joystick_read(int allow_usb_joy)
	344	{
	345	unsigned long value = current_keys;
	346	int i;
	347
	348	if (allow_usb_joy && num_of_joys > 0) {
	349	// check the usb joy as well..
	350	gp2x_usbjoy_update();
	351	for (i = 0; i < num_of_joys; i++)
	352	value \|= gp2x_usbjoy_check(i);
	353	}
	354
	355	return value;
	356	}
	357
	358	/* 940 */
	359	int crashed_940 = 0;
	360	void Pause940(int yes)
	361	{
	362	}
	363
8dfb9fd5	364	void Reset940(int yes, int bank)
720ee7f6	365	{
	366	}
	367
	368	/* faking gp2x cpuctrl.c */
	369	void cpuctrl_init(void)
	370	{
	371	}
	372
	373	void cpuctrl_deinit(void)
	374	{
	375	}
	376
	377	void set_FCLK(unsigned MHZ)
	378	{
	379	}
	380
	381	void Disable_940(void)
	382	{
	383	}
	384
	385	void gp2x_video_wait_vsync(void)
	386	{
	387	}
	388
	389	void set_RAM_Timings(int tRC, int tRAS, int tWR, int tMRD, int tRFC, int tRP, int tRCD)
	390	{
	391	}
	392
55a951dd	393	void set_gamma(int g100, int A_SNs_curve)
720ee7f6	394	{
	395	}
	396
59633198	397	void set_LCD_custom_rate(int rate)
	398	{
	399	}
	400
	401	void unset_LCD_custom_rate(void)
	402	{
	403	}
720ee7f6	404
	405	/* squidgehack.c */
	406	int mmuhack(void)
	407	{
	408	return 0;
	409	}
	410
	411
	412	int mmuunhack(void)
	413	{
	414	return 0;
	415	}
	416
	417
	418	/* misc */
	419	void spend_cycles(int c)
	420	{
46ede6a6	421	usleep(c/200);
720ee7f6	422	}
	423
	424
	425