[libpicofe.git] / gp2x / in_gp2x.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>

#include "../common/input.h"
#include "in_gp2x.h"
#include "soc.h"

#define IN_PREFIX "gp2x:"
#define IN_GP2X_NBUTTONS 32

/* note: in_gp2x hadles combos (if 2 btns have the same bind,
 * both must be pressed for action to happen) */
static int in_gp2x_combo_keys = 0;
static int in_gp2x_combo_acts = 0;
static int gpiodev = -1;	/* Wiz only */

static int (*in_gp2x_get_bits)(void);

enum  { BTN_UP = 0,      BTN_LEFT = 2,      BTN_DOWN = 4,  BTN_RIGHT = 6,
        BTN_START = 8,   BTN_SELECT = 9,    BTN_L = 10,    BTN_R = 11,
        BTN_A = 12,      BTN_B = 13,        BTN_X = 14,    BTN_Y = 15,
        BTN_VOL_UP = 23, BTN_VOL_DOWN = 22, BTN_PUSH = 27 };

static const char * const in_gp2x_prefix = IN_PREFIX;
static const char * const in_gp2x_keys[IN_GP2X_NBUTTONS] = {
	[0 ... IN_GP2X_NBUTTONS-1] = NULL,
	[BTN_UP]    = "UP",    [BTN_LEFT]   = "LEFT",   [BTN_DOWN] = "DOWN", [BTN_RIGHT] = "RIGHT",
	[BTN_START] = "START", [BTN_SELECT] = "SELECT", [BTN_L]    = "L",    [BTN_R]     = "R",
	[BTN_A]     = "A",     [BTN_B]      = "B",      [BTN_X]    = "X",    [BTN_Y]     = "Y",
	[BTN_VOL_DOWN]= "VOL DOWN",                     [BTN_VOL_UP] = "VOL UP",
	[BTN_PUSH] = "PUSH"
};

static int in_gp2x_get_mmsp2_bits(void);
static int in_gp2x_get_wiz_bits(void);

static void in_gp2x_probe(void)
{
	gp2x_soc_t soc;

	soc = soc_detect();
	switch (soc)
	{
	case SOCID_MMSP2:
		in_gp2x_get_bits = in_gp2x_get_mmsp2_bits;
		break;
	case SOCID_POLLUX:
		gpiodev = open("/dev/GPIO", O_RDONLY);
		if (gpiodev < 0) {
			perror("in_gp2x: couldn't open /dev/GPIO");
			return;
		}
		in_gp2x_get_bits = in_gp2x_get_wiz_bits;
		break;
	default:
		return;
	}

	in_register(IN_PREFIX "GP2X pad", IN_DRVID_GP2X, -1, (void *)1, 1);
}

static void in_gp2x_free(void *drv_data)
{
	if (gpiodev >= 0) {
		close(gpiodev);
		gpiodev = -1;
	}
}

static int in_gp2x_get_bind_count(void)
{
	return IN_GP2X_NBUTTONS;
}

static int in_gp2x_get_mmsp2_bits(void)
{
#ifndef FAKE_IN_GP2X
	extern volatile unsigned short *gp2x_memregs;
	int value;
	value = gp2x_memregs[0x1198>>1] & 0xff; // GPIO M
	if (value == 0xFD) value = 0xFA;
	if (value == 0xF7) value = 0xEB;
	if (value == 0xDF) value = 0xAF;
	if (value == 0x7F) value = 0xBE;
	value |= gp2x_memregs[0x1184>>1] & 0xFF00; // GPIO C
	value |= gp2x_memregs[0x1186>>1] << 16; // GPIO D
	value = ~value & 0x08c0ff55;

	return value;
#else
	extern int current_keys;
	return current_keys;
#endif
}

static int in_gp2x_get_wiz_bits(void)
{
	int value = 0;
	read(gpiodev, &value, 4);
	if (value & 0x02)
		value |= 0x05;
	if (value & 0x08)
		value |= 0x14;
	if (value & 0x20)
		value |= 0x50;
	if (value & 0x80)
		value |= 0x41;

	/* convert to GP2X style */
	value &= 0x7ff55;
	if (value & (1 << 16))
		value |= 1 << BTN_VOL_UP;
	if (value & (1 << 17))
		value |= 1 << BTN_VOL_DOWN;
	if (value & (1 << 18))
		value |= 1 << BTN_PUSH;
	value &= ~0x70000;

	return value;
}

/* returns bitfield of binds of pressed buttons */
int in_gp2x_update(void *drv_data, int *binds)
{
	int i, keys, ret = 0;

	keys = in_gp2x_get_bits();

	if (keys & in_gp2x_combo_keys)
		return in_combos_do(keys, binds, BTN_PUSH, in_gp2x_combo_keys, in_gp2x_combo_acts);

	for (i = 0; keys; i++) {
		if (keys & 1)
			ret |= binds[i];
		keys >>= 1;
	}

	return ret;
}

int in_gp2x_update_keycode(void *data, int *is_down)
{
	static int old_val = 0;
	int val, diff, i;

	val = in_gp2x_get_bits();
	diff = val ^ old_val;
	if (diff == 0)
		return -1;

	/* take one bit only */
	for (i = 0; i < sizeof(diff)*8; i++)
		if (diff & (1<<i))
			break;

	old_val ^= 1 << i;

	if (is_down)
		*is_down = !!(val & (1<<i));
	return i;
}

static const struct {
	short key;
	short pbtn;
} key_pbtn_map[] =
{
	{ BTN_UP,	PBTN_UP },
	{ BTN_DOWN,	PBTN_DOWN },
	{ BTN_LEFT,	PBTN_LEFT },
	{ BTN_RIGHT,	PBTN_RIGHT },
	{ BTN_B,	PBTN_MOK },
	{ BTN_X,	PBTN_MBACK },
	{ BTN_A,	PBTN_MA2 },
	{ BTN_Y,	PBTN_MA3 },
	{ BTN_L,	PBTN_L },
	{ BTN_R,	PBTN_R },
	{ BTN_SELECT,	PBTN_MENU },
};

#define KEY_PBTN_MAP_SIZE (sizeof(key_pbtn_map) / sizeof(key_pbtn_map[0]))

static int in_gp2x_menu_translate(int keycode)
{
	int i;
	if (keycode < 0)
	{
		/* menu -> kc */
		keycode = -keycode;
		for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
			if (key_pbtn_map[i].pbtn == keycode)
				return key_pbtn_map[i].key;
	}
	else
	{
		for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
			if (key_pbtn_map[i].key == keycode)
				return key_pbtn_map[i].pbtn;
	}

	return 0;
}

static int in_gp2x_get_key_code(const char *key_name)
{
	int i;

	for (i = 0; i < IN_GP2X_NBUTTONS; i++) {
		const char *k = in_gp2x_keys[i];
		if (k != NULL && strcasecmp(k, key_name) == 0)
			return i;
	}

	return -1;
}

static const char *in_gp2x_get_key_name(int keycode)
{
	const char *name = NULL;
	if (keycode >= 0 && keycode < IN_GP2X_NBUTTONS)
		name = in_gp2x_keys[keycode];
	if (name == NULL)
		name = "Unkn";
	
	return name;
}

static const struct {
	short code;
	short bit;
} in_gp2x_def_binds[] =
{
	/* MXYZ SACB RLDU */
	{ BTN_UP,	0 },
	{ BTN_DOWN,	1 },
	{ BTN_LEFT,	2 },
	{ BTN_RIGHT,	3 },
	{ BTN_X,	4 },	/* B */
	{ BTN_B,	5 },	/* C */
	{ BTN_A,	6 },	/* A */
	{ BTN_START,	7 },
	{ BTN_SELECT,	23 },	/* menu */
	{ BTN_Y,	26 },	/* switch rend */
	{ BTN_L,	27 },	/* save state */
	{ BTN_R,	28 },	/* load state */
	{ BTN_VOL_UP,	29 },	/* vol up */
	{ BTN_VOL_DOWN,	30 },	/* vol down */
};

#define DEF_BIND_COUNT (sizeof(in_gp2x_def_binds) / sizeof(in_gp2x_def_binds[0]))

static void in_gp2x_get_def_binds(int *binds)
{
	int i;

	for (i = 0; i < DEF_BIND_COUNT; i++)
		binds[in_gp2x_def_binds[i].code] = 1 << in_gp2x_def_binds[i].bit;
}

/* remove binds of missing keys, count remaining ones */
static int in_gp2x_clean_binds(void *drv_data, int *binds)
{
	int i, count = 0, have_vol = 0, have_menu = 0;

	for (i = 0; i < IN_GP2X_NBUTTONS; i++) {
		if (in_gp2x_keys[i] == NULL)
			binds[i] = binds[i + IN_GP2X_NBUTTONS] = 0;
		if (binds[i]) {
			count++;
			if (binds[i] & ((1 << 29)|(1 << 30)))
				have_vol = 1;
			if (binds[i] & (1 << 23))
				have_menu = 1;
		}
	}

	/* autobind some important keys, if they are unbound */
	if (!have_vol && binds[BTN_VOL_UP] == 0 && binds[BTN_VOL_DOWN] == 0) {
		binds[BTN_VOL_UP]   = 1 << 29;
		binds[BTN_VOL_DOWN] = 1 << 30;
	}

	if (!have_menu && binds[BTN_SELECT] == 0)
		binds[BTN_SELECT] = 1 << 23;

	in_combos_find(binds, BTN_PUSH, &in_gp2x_combo_keys, &in_gp2x_combo_acts);

	return count;

}

void in_gp2x_init(void *vdrv)
{
	in_drv_t *drv = vdrv;

	in_gp2x_combo_keys = in_gp2x_combo_acts = 0;

	drv->prefix = in_gp2x_prefix;
	drv->probe = in_gp2x_probe;
	drv->free = in_gp2x_free;
	drv->get_bind_count = in_gp2x_get_bind_count;
	drv->get_def_binds = in_gp2x_get_def_binds;
	drv->clean_binds = in_gp2x_clean_binds;
	drv->menu_translate = in_gp2x_menu_translate;
	drv->get_key_code = in_gp2x_get_key_code;
	drv->get_key_name = in_gp2x_get_key_name;
	drv->update_keycode = in_gp2x_update_keycode;
}
Commit	Line	Data
fa8d1331	1	#include <stdio.h>
13b692eb	2	#include <stdlib.h>
13b692eb	3	#include <string.h>
fa8d1331	4	#include <sys/types.h>
	5	#include <sys/stat.h>
	6	#include <fcntl.h>
	7	#include <unistd.h>
13b692eb	8
13b692eb	9	#include "../common/input.h"
13b692eb	10	#include "in_gp2x.h"
d572cbad	11	#include "soc.h"
13b692eb	12
	13	#define IN_PREFIX "gp2x:"
	14	#define IN_GP2X_NBUTTONS 32
	15
2c600560	16	/* note: in_gp2x hadles combos (if 2 btns have the same bind,
	17	* both must be pressed for action to happen) */
	18	static int in_gp2x_combo_keys = 0;
	19	static int in_gp2x_combo_acts = 0;
fa8d1331	20	static int gpiodev = -1; /* Wiz only */
	21
	22	static int (*in_gp2x_get_bits)(void);
2c600560	23
13b692eb	24	enum { BTN_UP = 0, BTN_LEFT = 2, BTN_DOWN = 4, BTN_RIGHT = 6,
	25	BTN_START = 8, BTN_SELECT = 9, BTN_L = 10, BTN_R = 11,
	26	BTN_A = 12, BTN_B = 13, BTN_X = 14, BTN_Y = 15,
	27	BTN_VOL_UP = 23, BTN_VOL_DOWN = 22, BTN_PUSH = 27 };
	28
	29	static const char * const in_gp2x_prefix = IN_PREFIX;
	30	static const char * const in_gp2x_keys[IN_GP2X_NBUTTONS] = {
	31	[0 ... IN_GP2X_NBUTTONS-1] = NULL,
	32	[BTN_UP] = "UP", [BTN_LEFT] = "LEFT", [BTN_DOWN] = "DOWN", [BTN_RIGHT] = "RIGHT",
	33	[BTN_START] = "START", [BTN_SELECT] = "SELECT", [BTN_L] = "L", [BTN_R] = "R",
	34	[BTN_A] = "A", [BTN_B] = "B", [BTN_X] = "X", [BTN_Y] = "Y",
	35	[BTN_VOL_DOWN]= "VOL DOWN", [BTN_VOL_UP] = "VOL UP",
	36	[BTN_PUSH] = "PUSH"
	37	};
	38
fa8d1331	39	static int in_gp2x_get_mmsp2_bits(void);
fa8d1331	40	static int in_gp2x_get_wiz_bits(void);
13b692eb	41
	42	static void in_gp2x_probe(void)
	43	{
fa8d1331	44	gp2x_soc_t soc;
	45
	46	soc = soc_detect();
	47	switch (soc)
	48	{
	49	case SOCID_MMSP2:
	50	in_gp2x_get_bits = in_gp2x_get_mmsp2_bits;
	51	break;
	52	case SOCID_POLLUX:
	53	gpiodev = open("/dev/GPIO", O_RDONLY);
	54	if (gpiodev < 0) {
	55	perror("in_gp2x: couldn't open /dev/GPIO");
	56	return;
	57	}
	58	in_gp2x_get_bits = in_gp2x_get_wiz_bits;
	59	break;
	60	default:
	61	return;
	62	}
	63
2c600560	64	in_register(IN_PREFIX "GP2X pad", IN_DRVID_GP2X, -1, (void *)1, 1);
13b692eb	65	}
13b692eb	66
fa8d1331	67	static void in_gp2x_free(void *drv_data)
	68	{
	69	if (gpiodev >= 0) {
	70	close(gpiodev);
	71	gpiodev = -1;
	72	}
	73	}
	74
13b692eb	75	static int in_gp2x_get_bind_count(void)
	76	{
	77	return IN_GP2X_NBUTTONS;
	78	}
	79
fa8d1331	80	static int in_gp2x_get_mmsp2_bits(void)
13b692eb	81	{
13b692eb	82	#ifndef FAKE_IN_GP2X
d572cbad	83	extern volatile unsigned short *gp2x_memregs;
13b692eb	84	int value;
	85	value = gp2x_memregs[0x1198>>1] & 0xff; // GPIO M
	86	if (value == 0xFD) value = 0xFA;
	87	if (value == 0xF7) value = 0xEB;
	88	if (value == 0xDF) value = 0xAF;
	89	if (value == 0x7F) value = 0xBE;
	90	value \|= gp2x_memregs[0x1184>>1] & 0xFF00; // GPIO C
	91	value \|= gp2x_memregs[0x1186>>1] << 16; // GPIO D
	92	value = ~value & 0x08c0ff55;
	93
	94	return value;
	95	#else
	96	extern int current_keys;
	97	return current_keys;
	98	#endif
	99	}
	100
fa8d1331	101	static int in_gp2x_get_wiz_bits(void)
	102	{
	103	int value = 0;
	104	read(gpiodev, &value, 4);
	105	if (value & 0x02)
	106	value \|= 0x05;
	107	if (value & 0x08)
	108	value \|= 0x14;
	109	if (value & 0x20)
	110	value \|= 0x50;
	111	if (value & 0x80)
	112	value \|= 0x41;
	113
	114	/* convert to GP2X style */
	115	value &= 0x7ff55;
	116	if (value & (1 << 16))
	117	value \|= 1 << BTN_VOL_UP;
	118	if (value & (1 << 17))
	119	value \|= 1 << BTN_VOL_DOWN;
	120	if (value & (1 << 18))
	121	value \|= 1 << BTN_PUSH;
	122	value &= ~0x70000;
	123
	124	return value;
	125	}
	126
13b692eb	127	/* returns bitfield of binds of pressed buttons */
	128	int in_gp2x_update(void drv_data, int binds)
	129	{
2c600560	130	int i, keys, ret = 0;
2c600560	131
fa8d1331	132	keys = in_gp2x_get_bits();
13b692eb	133
2c600560	134	if (keys & in_gp2x_combo_keys)
2c600560	135	return in_combos_do(keys, binds, BTN_PUSH, in_gp2x_combo_keys, in_gp2x_combo_acts);
13b692eb	136
2c600560	137	for (i = 0; keys; i++) {
2c600560	138	if (keys & 1)
13b692eb	139	ret \|= binds[i];
2c600560	140	keys >>= 1;
13b692eb	141	}
	142
	143	return ret;
	144	}
	145
	146	int in_gp2x_update_keycode(void data, int is_down)
	147	{
	148	static int old_val = 0;
	149	int val, diff, i;
	150
fa8d1331	151	val = in_gp2x_get_bits();
13b692eb	152	diff = val ^ old_val;
	153	if (diff == 0)
	154	return -1;
	155
	156	/* take one bit only */
	157	for (i = 0; i < sizeof(diff)*8; i++)
	158	if (diff & (1<<i))
	159	break;
	160
	161	old_val ^= 1 << i;
	162
	163	if (is_down)
	164	*is_down = !!(val & (1<<i));
	165	return i;
	166	}
	167
82abf46f	168	static const struct {
	169	short key;
	170	short pbtn;
	171	} key_pbtn_map[] =
	172	{
	173	{ BTN_UP, PBTN_UP },
	174	{ BTN_DOWN, PBTN_DOWN },
	175	{ BTN_LEFT, PBTN_LEFT },
	176	{ BTN_RIGHT, PBTN_RIGHT },
	177	{ BTN_B, PBTN_MOK },
	178	{ BTN_X, PBTN_MBACK },
	179	{ BTN_A, PBTN_MA2 },
	180	{ BTN_Y, PBTN_MA3 },
	181	{ BTN_L, PBTN_L },
	182	{ BTN_R, PBTN_R },
	183	{ BTN_SELECT, PBTN_MENU },
	184	};
	185
	186	#define KEY_PBTN_MAP_SIZE (sizeof(key_pbtn_map) / sizeof(key_pbtn_map[0]))
	187
13b692eb	188	static int in_gp2x_menu_translate(int keycode)
13b692eb	189	{
82abf46f	190	int i;
	191	if (keycode < 0)
	192	{
	193	/* menu -> kc */
	194	keycode = -keycode;
	195	for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
	196	if (key_pbtn_map[i].pbtn == keycode)
	197	return key_pbtn_map[i].key;
13b692eb	198	}
82abf46f	199	else
	200	{
	201	for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
	202	if (key_pbtn_map[i].key == keycode)
	203	return key_pbtn_map[i].pbtn;
	204	}
	205
	206	return 0;
13b692eb	207	}
	208
	209	static int in_gp2x_get_key_code(const char *key_name)
	210	{
	211	int i;
	212
	213	for (i = 0; i < IN_GP2X_NBUTTONS; i++) {
	214	const char *k = in_gp2x_keys[i];
	215	if (k != NULL && strcasecmp(k, key_name) == 0)
	216	return i;
	217	}
	218
	219	return -1;
	220	}
	221
	222	static const char *in_gp2x_get_key_name(int keycode)
	223	{
	224	const char *name = NULL;
	225	if (keycode >= 0 && keycode < IN_GP2X_NBUTTONS)
	226	name = in_gp2x_keys[keycode];
	227	if (name == NULL)
	228	name = "Unkn";
	229
	230	return name;
	231	}
	232
	233	static const struct {
	234	short code;
	235	short bit;
	236	} in_gp2x_def_binds[] =
	237	{
	238	/* MXYZ SACB RLDU */
	239	{ BTN_UP, 0 },
	240	{ BTN_DOWN, 1 },
	241	{ BTN_LEFT, 2 },
	242	{ BTN_RIGHT, 3 },
	243	{ BTN_X, 4 }, /* B */
	244	{ BTN_B, 5 }, /* C */
	245	{ BTN_A, 6 }, /* A */
	246	{ BTN_START, 7 },
82abf46f	247	{ BTN_SELECT, 23 }, /* menu */
	248	{ BTN_Y, 26 }, /* switch rend */
	249	{ BTN_L, 27 }, /* save state */
	250	{ BTN_R, 28 }, /* load state */
	251	{ BTN_VOL_UP, 29 }, /* vol up */
	252	{ BTN_VOL_DOWN, 30 }, /* vol down */
13b692eb	253	};
	254
	255	#define DEF_BIND_COUNT (sizeof(in_gp2x_def_binds) / sizeof(in_gp2x_def_binds[0]))
	256
	257	static void in_gp2x_get_def_binds(int *binds)
	258	{
	259	int i;
	260
	261	for (i = 0; i < DEF_BIND_COUNT; i++)
	262	binds[in_gp2x_def_binds[i].code] = 1 << in_gp2x_def_binds[i].bit;
	263	}
	264
	265	/* remove binds of missing keys, count remaining ones */
	266	static int in_gp2x_clean_binds(void drv_data, int binds)
	267	{
82abf46f	268	int i, count = 0, have_vol = 0, have_menu = 0;
13b692eb	269
	270	for (i = 0; i < IN_GP2X_NBUTTONS; i++) {
	271	if (in_gp2x_keys[i] == NULL)
	272	binds[i] = binds[i + IN_GP2X_NBUTTONS] = 0;
82abf46f	273	if (binds[i]) {
13b692eb	274	count++;
82abf46f	275	if (binds[i] & ((1 << 29)\|(1 << 30)))
	276	have_vol = 1;
	277	if (binds[i] & (1 << 23))
	278	have_menu = 1;
	279	}
13b692eb	280	}
13b692eb	281
82abf46f	282	/* autobind some important keys, if they are unbound */
	283	if (!have_vol && binds[BTN_VOL_UP] == 0 && binds[BTN_VOL_DOWN] == 0) {
	284	binds[BTN_VOL_UP] = 1 << 29;
	285	binds[BTN_VOL_DOWN] = 1 << 30;
	286	}
	287
	288	if (!have_menu && binds[BTN_SELECT] == 0)
	289	binds[BTN_SELECT] = 1 << 23;
	290
2c600560	291	in_combos_find(binds, BTN_PUSH, &in_gp2x_combo_keys, &in_gp2x_combo_acts);
2c600560	292
13b692eb	293	return count;
	294
	295	}
	296
	297	void in_gp2x_init(void *vdrv)
	298	{
	299	in_drv_t *drv = vdrv;
	300
2c600560	301	in_gp2x_combo_keys = in_gp2x_combo_acts = 0;
2c600560	302
13b692eb	303	drv->prefix = in_gp2x_prefix;
13b692eb	304	drv->probe = in_gp2x_probe;
fa8d1331	305	drv->free = in_gp2x_free;
13b692eb	306	drv->get_bind_count = in_gp2x_get_bind_count;
	307	drv->get_def_binds = in_gp2x_get_def_binds;
	308	drv->clean_binds = in_gp2x_clean_binds;
	309	drv->menu_translate = in_gp2x_menu_translate;
	310	drv->get_key_code = in_gp2x_get_key_code;
	311	drv->get_key_name = in_gp2x_get_key_name;
	312	drv->update_keycode = in_gp2x_update_keycode;
	313	}
	314