[libpicofe.git] / common / input.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "input.h"
#include "plat.h"
#include "lprintf.h"

#ifdef IN_EVDEV
#include "../linux/in_evdev.h"
#endif
#ifdef IN_GP2X
#include "../gp2x/in_gp2x.h"
#endif
#ifdef IN_VK
#include "../win32/in_vk.h"
#endif

typedef struct
{
	int drv_id;
	int drv_fd_hnd;
	void *drv_data;
	char *name;
	int key_count;
	int *binds;	/* total = key_count * bindtypes * 2 */
	int probed:1;
	int does_combos:1;
} in_dev_t;

static in_drv_t in_drivers[IN_DRVID_COUNT];
static in_dev_t in_devices[IN_MAX_DEVS];
static int in_dev_count = 0;
static int in_have_async_devs = 0;
static int menu_key_state = 0;
static int menu_last_used_dev = 0;

#define DRV(id) in_drivers[(unsigned)(id) < IN_DRVID_COUNT ? (id) : 0]


static int *in_alloc_binds(int drv_id, int key_count)
{
	int *binds;

	binds = calloc(key_count * IN_BINDTYPE_COUNT * 2, sizeof(binds[0]));
	if (binds == NULL)
		return NULL;

	DRV(drv_id).get_def_binds(binds + key_count * IN_BINDTYPE_COUNT);
	memcpy(binds, binds + key_count * IN_BINDTYPE_COUNT,
		sizeof(binds[0]) * key_count * IN_BINDTYPE_COUNT);

	return binds;
}

static void in_free(in_dev_t *dev)
{
	if (dev->probed)
		DRV(dev->drv_id).free(dev->drv_data);
	dev->probed = 0;
	dev->drv_data = NULL;
	free(dev->name);
	dev->name = NULL;
	free(dev->binds);
	dev->binds = NULL;
}

/* to be called by drivers
 * async devices must set drv_fd_hnd to -1 */
void in_register(const char *nname, int drv_id, int drv_fd_hnd, void *drv_data,
		int key_count, int combos)
{
	int i, ret, dupe_count = 0, *binds;
	char name[256], *name_end, *tmp;

	strncpy(name, nname, sizeof(name));
	name[sizeof(name)-12] = 0;
	name_end = name + strlen(name);

	for (i = 0; i < in_dev_count; i++)
	{
		if (in_devices[i].name == NULL)
			continue;
		if (strcmp(in_devices[i].name, name) == 0)
		{
			if (in_devices[i].probed) {
				dupe_count++;
				sprintf(name_end, " [%d]", dupe_count);
				continue;
			}
			goto update;
		}
	}

	if (i >= IN_MAX_DEVS)
	{
		/* try to find unused device */
		for (i = 0; i < IN_MAX_DEVS; i++)
			if (!in_devices[i].probed) break;
		if (i >= IN_MAX_DEVS) {
			lprintf("input: too many devices, can't add %s\n", name);
			return;
		}
		in_free(&in_devices[i]);
	}

	tmp = strdup(name);
	if (tmp == NULL)
		return;

	binds = in_alloc_binds(drv_id, key_count);
	if (binds == NULL) {
		free(tmp);
		return;
	}

	in_devices[i].name = tmp;
	in_devices[i].binds = binds;
	in_devices[i].key_count = key_count;
	if (i + 1 > in_dev_count)
		in_dev_count = i + 1;

	lprintf("input: new device #%d \"%s\"\n", i, name);
update:
	in_devices[i].probed = 1;
	in_devices[i].does_combos = combos;
	in_devices[i].drv_id = drv_id;
	in_devices[i].drv_fd_hnd = drv_fd_hnd;
	in_devices[i].drv_data = drv_data;

	if (in_devices[i].binds != NULL) {
		ret = DRV(drv_id).clean_binds(drv_data, in_devices[i].binds,
			in_devices[i].binds + key_count * IN_BINDTYPE_COUNT);
		if (ret == 0) {
			/* no useable binds */
			free(in_devices[i].binds);
			in_devices[i].binds = NULL;
		}
	}
}

/* key combo handling, to be called by drivers that support it.
 * Only care about IN_BINDTYPE_EMU */
void in_combos_find(const int *binds, int last_key, int *combo_keys, int *combo_acts)
{
	int act, u;

	*combo_keys = *combo_acts = 0;
	for (act = 0; act < sizeof(binds[0]) * 8; act++)
	{
		int keyc = 0;
		for (u = 0; u <= last_key; u++)
			if (binds[IN_BIND_OFFS(u, IN_BINDTYPE_EMU)] & (1 << act))
				keyc++;

		if (keyc > 1)
		{
			// loop again and mark those keys and actions as combo
			for (u = 0; u <= last_key; u++)
			{
				if (binds[IN_BIND_OFFS(u, IN_BINDTYPE_EMU)] & (1 << act)) {
					*combo_keys |= 1 << u;
					*combo_acts |= 1 << act;
				}
			}
		}
	}
}

int in_combos_do(int keys, const int *binds, int last_key, int combo_keys, int combo_acts)
{
	int i, ret = 0;

	for (i = 0; i <= last_key; i++)
	{
		int acts, acts_c, u;

		if (!(keys & (1 << i)))
			continue;

		acts = binds[IN_BIND_OFFS(i, IN_BINDTYPE_EMU)];
		if (!acts)
			continue;

		if (!(combo_keys & (1 << i))) {
			ret |= acts;
			continue;
		}

		acts_c = acts & combo_acts;
		u = last_key;
		if (acts_c) {
			// let's try to find the other one
			for (u = i + 1; u <= last_key; u++)
				if ( (keys & (1 << u)) && (binds[IN_BIND_OFFS(u, IN_BINDTYPE_EMU)] & acts_c) ) {
					ret |= acts_c & binds[IN_BIND_OFFS(u, IN_BINDTYPE_EMU)];
					keys &= ~((1 << i) | (1 << u));
					break;
				}
		}
		// add non-combo actions if combo ones were not found
		if (u >= last_key)
			ret |= acts & ~combo_acts;
	}

	return ret;
}

void in_probe(void)
{
	int i;

	in_have_async_devs = 0;
	for (i = 0; i < in_dev_count; i++)
		in_devices[i].probed = 0;

	for (i = 1; i < IN_DRVID_COUNT; i++)
		in_drivers[i].probe();

	/* get rid of devs without binds and probes */
	for (i = 0; i < in_dev_count; i++) {
		if (!in_devices[i].probed && in_devices[i].binds == NULL) {
			in_dev_count--;
			if (i < in_dev_count) {
				free(in_devices[i].name);
				memmove(&in_devices[i], &in_devices[i+1],
					(in_dev_count - i) * sizeof(in_devices[0]));
			}

			continue;
		}

		if (in_devices[i].probed && in_devices[i].drv_fd_hnd == -1)
			in_have_async_devs = 1;
	}

	if (in_have_async_devs)
		lprintf("input: async-only devices detected..\n");
}

/* async update */
int in_update(int *result)
{
	int i, ret = 0;

	for (i = 0; i < in_dev_count; i++) {
		in_dev_t *dev = &in_devices[i];
		if (dev->probed && dev->binds != NULL) {
			// FIXME: this is stupid, make it indirect
			switch (dev->drv_id) {
#ifdef IN_EVDEV
			case IN_DRVID_EVDEV:
				ret |= in_evdev_update(dev->drv_data, dev->binds, result);
				break;
#endif
#ifdef IN_GP2X
			case IN_DRVID_GP2X:
				ret |= in_gp2x_update(dev->drv_data, dev->binds, result);
				break;
#endif
#ifdef IN_VK
			case IN_DRVID_VK:
				ret |= in_vk_update(dev->drv_data, dev->binds, result);
				break;
#endif
			}
		}
	}

	return ret;
}

void in_set_blocking(int is_blocking)
{
	int i, ret;

	/* have_async_devs means we will have to do all reads async anyway.. */
	if (!in_have_async_devs) {
		for (i = 0; i < in_dev_count; i++) {
			if (in_devices[i].probed)
				DRV(in_devices[i].drv_id).set_blocking(in_devices[i].drv_data, is_blocking);
		}
	}

	menu_key_state = 0;

	/* flush events */
	do {
		ret = in_update_keycode(NULL, NULL, 0);
	} while (ret >= 0);
}

static int in_update_kc_async(int *dev_id_out, int *is_down_out, int timeout_ms)
{
	int i, is_down, result;
	unsigned int ticks;

	ticks = plat_get_ticks_ms();

	while (1)
	{
		for (i = 0; i < in_dev_count; i++) {
			in_dev_t *d = &in_devices[i];
			if (!d->probed)
				continue;

			result = DRV(d->drv_id).update_keycode(d->drv_data, &is_down);
			if (result == -1)
				continue;

			if (dev_id_out)
				*dev_id_out = i;
			if (is_down_out)
				*is_down_out = is_down;
			return result;
		}

		if (timeout_ms >= 0 && (int)(plat_get_ticks_ms() - ticks) > timeout_ms)
			break;

		plat_sleep_ms(10);
	}

	return -1;
}

/* 
 * wait for a press, always return some keycode or -1 on timeout or error
 */
int in_update_keycode(int *dev_id_out, int *is_down_out, int timeout_ms)
{
	int result = -1, dev_id = 0, is_down, result_menu;
	int fds_hnds[IN_MAX_DEVS];
	int i, ret, count = 0;
	in_drv_t *drv = NULL;
	unsigned int ticks;

	if (in_have_async_devs) {
		result = in_update_kc_async(&dev_id, &is_down, timeout_ms);
		if (result == -1)
			return -1;
		drv = &DRV(in_devices[dev_id].drv_id);
		goto finish;
	}

	ticks = plat_get_ticks_ms();

	for (i = 0; i < in_dev_count; i++) {
		if (in_devices[i].probed)
			fds_hnds[count++] = in_devices[i].drv_fd_hnd;
	}

	if (count == 0) {
		/* don't deadlock, fail */
		lprintf("input: failed to find devices to read\n");
		exit(1);
	}

	while (1)
	{
		ret = plat_wait_event(fds_hnds, count, timeout_ms);
		if (ret < 0)
			break;

		for (i = 0; i < in_dev_count; i++) {
			if (in_devices[i].drv_fd_hnd == ret) {
				dev_id = i;
				break;
			}
		}

		drv = &DRV(in_devices[dev_id].drv_id);
		result = drv->update_keycode(in_devices[dev_id].drv_data, &is_down);

		/* update_keycode() might return -1 when some not interesting
		 * event happened, like sync event for evdev. */
		if (result >= 0)
			break;

		if (timeout_ms >= 0) {
			unsigned int ticks2 = plat_get_ticks_ms();
			timeout_ms -= ticks2 - ticks;
			ticks = ticks2;
			if (timeout_ms <= 0)
				break;
		}
	}

	if (result == -1)
		return -1;
finish:
	/* keep track of menu key state, to allow mixing
	 * in_update_keycode() and in_menu_wait_any() calls */
	result_menu = drv->menu_translate(result);
	if (result_menu != 0) {
		if (is_down)
			menu_key_state |=  result_menu;
		else
			menu_key_state &= ~result_menu;
	}

	if (dev_id_out != NULL)
		*dev_id_out = dev_id;
	if (is_down_out != NULL)
		*is_down_out = is_down;
	return result;
}

/* same as above, only return bitfield of PBTN_*  */
int in_menu_wait_any(int timeout_ms)
{
	int keys_old = menu_key_state;

	while (1)
	{
		int code, is_down = 0, dev_id = 0;

		code = in_update_keycode(&dev_id, &is_down, timeout_ms);
		if (code >= 0)
			code = DRV(in_devices[dev_id].drv_id).menu_translate(code);

		if (timeout_ms >= 0)
			break;
		if (code < 0)
			continue;
		menu_last_used_dev = dev_id;
		if (keys_old != menu_key_state)
			break;
	}

	return menu_key_state;
}

/* wait for menu input, do autorepeat */
int in_menu_wait(int interesting, int autorep_delay_ms)
{
	static int inp_prev = 0;
	static int repeats = 0;
	int ret, release = 0, wait = 450;

	if (repeats)
		wait = autorep_delay_ms;

	ret = in_menu_wait_any(wait);
	if (ret == inp_prev)
		repeats++;

	while (!(ret & interesting)) {
		ret = in_menu_wait_any(-1);
		release = 1;
	}

	if (release || ret != inp_prev)
		repeats = 0;

	inp_prev = ret;

	/* we don't need diagonals in menus */
	if ((ret & PBTN_UP)   && (ret & PBTN_LEFT))  ret &= ~PBTN_LEFT;
	if ((ret & PBTN_UP)   && (ret & PBTN_RIGHT)) ret &= ~PBTN_RIGHT;
	if ((ret & PBTN_DOWN) && (ret & PBTN_LEFT))  ret &= ~PBTN_LEFT;
	if ((ret & PBTN_DOWN) && (ret & PBTN_RIGHT)) ret &= ~PBTN_RIGHT;

	return ret;
}

const int *in_get_dev_binds(int dev_id)
{
	if (dev_id < 0 || dev_id >= IN_MAX_DEVS)
		return NULL;

	return in_devices[dev_id].binds;
}

const int *in_get_dev_def_binds(int dev_id)
{
	if (dev_id < 0 || dev_id >= IN_MAX_DEVS)
		return NULL;

	return in_devices[dev_id].binds + in_devices[dev_id].key_count * IN_BINDTYPE_COUNT;
}

int in_get_dev_info(int dev_id, int what)
{
	if (dev_id < 0 || dev_id >= IN_MAX_DEVS)
		return 0;

	switch (what) {
	case IN_INFO_BIND_COUNT:
		return in_devices[dev_id].key_count;
	case IN_INFO_DOES_COMBOS:
		return in_devices[dev_id].does_combos;
	}

	return 0;
}

const char *in_get_dev_name(int dev_id, int must_be_active, int skip_pfix)
{
	const char *name, *tmp;

	if (dev_id < 0 || dev_id >= IN_MAX_DEVS)
		return NULL;

	if (must_be_active && !in_devices[dev_id].probed)
		return NULL;

	name = in_devices[dev_id].name;
	if (name == NULL || !skip_pfix)
		return name;

	/* skip prefix */
	tmp = strchr(name, ':');
	if (tmp != NULL)
		name = tmp + 1;

	return name;
}

/* never returns NULL */
const char *in_get_key_name(int dev_id, int keycode)
{
	static char xname[16];
	const char *name;

	if (dev_id < 0)		/* want last used dev? */
		dev_id = menu_last_used_dev;

	if (dev_id < 0 || dev_id >= IN_MAX_DEVS)
		return "Unkn0";

	if (keycode < 0)	/* want name for menu key? */
		keycode = DRV(in_devices[dev_id].drv_id).menu_translate(keycode);

	name = DRV(in_devices[dev_id].drv_id).get_key_name(keycode);
	if (name != NULL)
		return name;

	/* assume scancode */
	if ((keycode >= '0' && keycode <= '9') || (keycode >= 'a' && keycode <= 'z')
			|| (keycode >= 'A' && keycode <= 'Z'))
		sprintf(xname, "%c", keycode);
	else
		sprintf(xname, "\\x%02X", keycode);
	return xname;
}

int in_bind_key(int dev_id, int keycode, int mask, int bind_type, int force_unbind)
{
	int ret, count;
	in_dev_t *dev;

	if (dev_id < 0 || dev_id >= IN_MAX_DEVS || bind_type >= IN_BINDTYPE_COUNT)
		return -1;

	dev = &in_devices[dev_id];
	count = dev->key_count;

	if (dev->binds == NULL) {
		if (force_unbind)
			return 0;
		dev->binds = in_alloc_binds(dev->drv_id, count);
		if (dev->binds == NULL)
			return -1;
	}

	if (keycode < 0 || keycode >= count)
		return -1;
	
	if (force_unbind)
		dev->binds[IN_BIND_OFFS(keycode, bind_type)] &= ~mask;
	else
		dev->binds[IN_BIND_OFFS(keycode, bind_type)] ^=  mask;
	
	ret = DRV(dev->drv_id).clean_binds(dev->drv_data, dev->binds,
				dev->binds + count * IN_BINDTYPE_COUNT);
	if (ret == 0) {
		free(dev->binds);
		dev->binds = NULL;
	}

	return 0;
}

void in_unbind_all(int dev_id, int act_mask, int bind_type)
{
	int i, count;
	in_dev_t *dev;

	if (dev_id < 0 || dev_id >= IN_MAX_DEVS || bind_type >= IN_BINDTYPE_COUNT)
		return;

	dev = &in_devices[dev_id];
	count = dev->key_count;

	if (dev->binds == NULL)
		return;

	for (i = 0; i < count; i++)
		dev->binds[IN_BIND_OFFS(i, bind_type)] &= ~act_mask;
}

/* returns device id, or -1 on error */
int in_config_parse_dev(const char *name)
{
	int drv_id = -1, i;

	for (i = 0; i < IN_DRVID_COUNT; i++) {
		int len = strlen(in_drivers[i].prefix);
		if (strncmp(name, in_drivers[i].prefix, len) == 0) {
			drv_id = i;
			break;
		}
	}

	if (drv_id < 0) {
		lprintf("input: missing driver for %s\n", name);
		return -1;
	}

	for (i = 0; i < in_dev_count; i++)
	{
		if (in_devices[i].name == NULL)
			continue;
		if (strcmp(in_devices[i].name, name) == 0)
			return i;
	}

	if (i >= IN_MAX_DEVS)
	{
		/* try to find unused device */
		for (i = 0; i < IN_MAX_DEVS; i++)
			if (in_devices[i].name == NULL) break;
		if (i >= IN_MAX_DEVS) {
			lprintf("input: too many devices, can't add %s\n", name);
			return -1;
		}
	}

	memset(&in_devices[i], 0, sizeof(in_devices[i]));

	in_devices[i].name = strdup(name);
	if (in_devices[i].name == NULL)
		return -1;

	in_devices[i].key_count = DRV(drv_id).get_bind_count();
	in_devices[i].drv_id = drv_id;

	if (i + 1 > in_dev_count)
		in_dev_count = i + 1;

	return i;
}

/*
 * To reduce size of game specific configs, default binds are not saved.
 * So we mark default binds in in_config_start(), override them in in_config_bind_key(),
 * and restore whatever default binds are left in in_config_end().
 */
void in_config_start(void)
{
	int i;

	/* mark all default binds, so they get overwritten by func below */
	for (i = 0; i < IN_MAX_DEVS; i++) {
		int n, count, *binds, *def_binds;

		binds = in_devices[i].binds;
		if (binds == NULL)
			continue;

		count = in_devices[i].key_count;
		def_binds = binds + count * IN_BINDTYPE_COUNT;

		for (n = 0; n < count * IN_BINDTYPE_COUNT; n++)
			if (binds[n] == def_binds[n])
				binds[n] = -1;
	}
}

int in_config_bind_key(int dev_id, const char *key, int acts, int bind_type)
{
	in_dev_t *dev;
	int i, offs, kc;

	if (dev_id < 0 || dev_id >= IN_MAX_DEVS || bind_type >= IN_BINDTYPE_COUNT)
		return -1;
	dev = &in_devices[dev_id];

	/* maybe a raw code? */
	if (key[0] == '\\' && key[1] == 'x') {
		char *p = NULL;
		kc = (int)strtoul(key + 2, &p, 16);
		if (p == NULL || *p != 0)
			kc = -1;
	}
	else {
		/* device specific key name */
		if (dev->binds == NULL) {
			dev->binds = in_alloc_binds(dev->drv_id, dev->key_count);
			if (dev->binds == NULL)
				return -1;
			in_config_start();
		}

		kc = DRV(dev->drv_id).get_key_code(key);
		if (kc < 0 && strlen(key) == 1) {
			/* assume scancode */
			kc = key[0];
		}
	}

	if (kc < 0 || kc >= dev->key_count) {
		lprintf("input: bad key: %s\n", key);
		return -1;
	}

	if (bind_type == IN_BINDTYPE_NONE) {
		for (i = 0; i < IN_BINDTYPE_COUNT; i++)
			dev->binds[IN_BIND_OFFS(kc, i)] = 0;
		return 0;
	}

	offs = IN_BIND_OFFS(kc, bind_type);
	if (dev->binds[offs] == -1)
		dev->binds[offs] = 0;
	dev->binds[offs] |= acts;
	return 0;
}

void in_config_end(void)
{
	int i;

	for (i = 0; i < IN_MAX_DEVS; i++) {
		int n, t, ret, count, *binds, *def_binds;
		in_dev_t *dev = &in_devices[i];

		if (dev->binds == NULL)
			continue;

		count = dev->key_count;
		binds = dev->binds;
		def_binds = binds + count * IN_BINDTYPE_COUNT;

		for (n = 0; n < count; n++) {
			int is_default = 1;
			for (t = 0; t < IN_BINDTYPE_COUNT; t++)
				if (binds[IN_BIND_OFFS(n, t)] == -1)
					binds[IN_BIND_OFFS(n, t)] = 0;
				else
					is_default = 0;

			if (is_default)
				for (t = 0; t < IN_BINDTYPE_COUNT; t++)
					binds[IN_BIND_OFFS(n, t)] = def_binds[IN_BIND_OFFS(n, t)];
		}

		if (dev->drv_data == NULL)
			continue;

		ret = DRV(dev->drv_id).clean_binds(dev->drv_data, binds, def_binds);
		if (ret == 0) {
			/* no useable binds */
			free(dev->binds);
			dev->binds = NULL;
		}
	}
}

void in_debug_dump(void)
{
	int i;

	lprintf("# drv probed binds name\n");
	for (i = 0; i < IN_MAX_DEVS; i++) {
		in_dev_t *d = &in_devices[i];
		if (!d->probed && d->name == NULL && d->binds == NULL)
			continue;
		lprintf("%d %3d %6c %5c %s\n", i, d->drv_id, d->probed ? 'y' : 'n',
			d->binds ? 'y' : 'n', d->name);
	}
}

/* handlers for unknown/not_preset drivers */

static void in_def_probe(void) {}
static void in_def_free(void *drv_data) {}
static int  in_def_get_bind_count(void) { return 0; }
static void in_def_get_def_binds(int *binds) {}
static int  in_def_clean_binds(void *drv_data, int *b, int *db) { return 0; }
static void in_def_set_blocking(void *data, int y) {}
static int  in_def_update_keycode(void *drv_data, int *is_down) { return 0; }
static int  in_def_menu_translate(int keycode) { return keycode; }
static int  in_def_get_key_code(const char *key_name) { return 0; }
static const char *in_def_get_key_name(int keycode) { return NULL; }

void in_init(void)
{
	int i;

	memset(in_drivers, 0, sizeof(in_drivers));
	memset(in_devices, 0, sizeof(in_devices));
	in_dev_count = 0;

	for (i = 0; i < IN_DRVID_COUNT; i++) {
		in_drivers[i].prefix = "none:";
		in_drivers[i].probe = in_def_probe;
		in_drivers[i].free = in_def_free;
		in_drivers[i].get_bind_count = in_def_get_bind_count;
		in_drivers[i].get_def_binds = in_def_get_def_binds;
		in_drivers[i].clean_binds = in_def_clean_binds;
		in_drivers[i].set_blocking = in_def_set_blocking;
		in_drivers[i].update_keycode = in_def_update_keycode;
		in_drivers[i].menu_translate = in_def_menu_translate;
		in_drivers[i].get_key_code = in_def_get_key_code;
		in_drivers[i].get_key_name = in_def_get_key_name;
	}

#ifdef IN_GP2X
	in_gp2x_init(&in_drivers[IN_DRVID_GP2X]);
#endif
#ifdef IN_EVDEV
	in_evdev_init(&in_drivers[IN_DRVID_EVDEV]);
#endif
#ifdef IN_VK
	in_vk_init(&in_drivers[IN_DRVID_VK]);
#endif
}

#if 0
int main(void)
{
	int ret;

	in_init();
	in_probe();

	in_set_blocking(1);

#if 1
	while (1) {
		int dev = 0, down;
		ret = in_update_keycode(&dev, &down);
		lprintf("#%i: %i %i (%s)\n", dev, down, ret, in_get_key_name(dev, ret));
	}
#else
	while (1) {
		ret = in_menu_wait_any();
		lprintf("%08x\n", ret);
	}
#endif

	return 0;
}
#endif
Commit	Line	Data
	1	#include <stdio.h>
	2	#include <stdlib.h>
	3	#include <string.h>
	4
	5	#include "input.h"
	6	#include "plat.h"
	7	#include "lprintf.h"
	8
	9	#ifdef IN_EVDEV
	10	#include "../linux/in_evdev.h"
	11	#endif
	12	#ifdef IN_GP2X
	13	#include "../gp2x/in_gp2x.h"
	14	#endif
	15	#ifdef IN_VK
	16	#include "../win32/in_vk.h"
	17	#endif
	18
	19	typedef struct
	20	{
	21	int drv_id;
	22	int drv_fd_hnd;
	23	void *drv_data;
	24	char *name;
	25	int key_count;
	26	int binds; / total = key_count * bindtypes * 2 */
	27	int probed:1;
	28	int does_combos:1;
	29	} in_dev_t;
	30
	31	static in_drv_t in_drivers[IN_DRVID_COUNT];
	32	static in_dev_t in_devices[IN_MAX_DEVS];
	33	static int in_dev_count = 0;
	34	static int in_have_async_devs = 0;
	35	static int menu_key_state = 0;
	36	static int menu_last_used_dev = 0;
	37
	38	#define DRV(id) in_drivers[(unsigned)(id) < IN_DRVID_COUNT ? (id) : 0]
	39
	40
	41	static int *in_alloc_binds(int drv_id, int key_count)
	42	{
	43	int *binds;
	44
	45	binds = calloc(key_count * IN_BINDTYPE_COUNT * 2, sizeof(binds[0]));
	46	if (binds == NULL)
	47	return NULL;
	48
	49	DRV(drv_id).get_def_binds(binds + key_count * IN_BINDTYPE_COUNT);
	50	memcpy(binds, binds + key_count * IN_BINDTYPE_COUNT,
	51	sizeof(binds[0]) * key_count * IN_BINDTYPE_COUNT);
	52
	53	return binds;
	54	}
	55
	56	static void in_free(in_dev_t *dev)
	57	{
	58	if (dev->probed)
	59	DRV(dev->drv_id).free(dev->drv_data);
	60	dev->probed = 0;
	61	dev->drv_data = NULL;
	62	free(dev->name);
	63	dev->name = NULL;
	64	free(dev->binds);
	65	dev->binds = NULL;
	66	}
	67
	68	/* to be called by drivers
	69	* async devices must set drv_fd_hnd to -1 */
	70	void in_register(const char nname, int drv_id, int drv_fd_hnd, void drv_data,
	71	int key_count, int combos)
	72	{
	73	int i, ret, dupe_count = 0, *binds;
	74	char name[256], name_end, tmp;
	75
	76	strncpy(name, nname, sizeof(name));
	77	name[sizeof(name)-12] = 0;
	78	name_end = name + strlen(name);
	79
	80	for (i = 0; i < in_dev_count; i++)
	81	{
	82	if (in_devices[i].name == NULL)
	83	continue;
	84	if (strcmp(in_devices[i].name, name) == 0)
	85	{
	86	if (in_devices[i].probed) {
	87	dupe_count++;
	88	sprintf(name_end, " [%d]", dupe_count);
	89	continue;
	90	}
	91	goto update;
	92	}
	93	}
	94
	95	if (i >= IN_MAX_DEVS)
	96	{
	97	/* try to find unused device */
	98	for (i = 0; i < IN_MAX_DEVS; i++)
	99	if (!in_devices[i].probed) break;
	100	if (i >= IN_MAX_DEVS) {
	101	lprintf("input: too many devices, can't add %s\n", name);
	102	return;
	103	}
	104	in_free(&in_devices[i]);
	105	}
	106
	107	tmp = strdup(name);
	108	if (tmp == NULL)
	109	return;
	110
	111	binds = in_alloc_binds(drv_id, key_count);
	112	if (binds == NULL) {
	113	free(tmp);
	114	return;
	115	}
	116
	117	in_devices[i].name = tmp;
	118	in_devices[i].binds = binds;
	119	in_devices[i].key_count = key_count;
	120	if (i + 1 > in_dev_count)
	121	in_dev_count = i + 1;
	122
	123	lprintf("input: new device #%d \"%s\"\n", i, name);
	124	update:
	125	in_devices[i].probed = 1;
	126	in_devices[i].does_combos = combos;
	127	in_devices[i].drv_id = drv_id;
	128	in_devices[i].drv_fd_hnd = drv_fd_hnd;
	129	in_devices[i].drv_data = drv_data;
	130
	131	if (in_devices[i].binds != NULL) {
	132	ret = DRV(drv_id).clean_binds(drv_data, in_devices[i].binds,
	133	in_devices[i].binds + key_count * IN_BINDTYPE_COUNT);
	134	if (ret == 0) {
	135	/* no useable binds */
	136	free(in_devices[i].binds);
	137	in_devices[i].binds = NULL;
	138	}
	139	}
	140	}
	141
	142	/* key combo handling, to be called by drivers that support it.
	143	* Only care about IN_BINDTYPE_EMU */
	144	void in_combos_find(const int binds, int last_key, int combo_keys, int *combo_acts)
	145	{
	146	int act, u;
	147
	148	combo_keys = combo_acts = 0;
	149	for (act = 0; act < sizeof(binds[0]) * 8; act++)
	150	{
	151	int keyc = 0;
	152	for (u = 0; u <= last_key; u++)
	153	if (binds[IN_BIND_OFFS(u, IN_BINDTYPE_EMU)] & (1 << act))
	154	keyc++;
	155
	156	if (keyc > 1)
	157	{
	158	// loop again and mark those keys and actions as combo
	159	for (u = 0; u <= last_key; u++)
	160	{
	161	if (binds[IN_BIND_OFFS(u, IN_BINDTYPE_EMU)] & (1 << act)) {
	162	*combo_keys \|= 1 << u;
	163	*combo_acts \|= 1 << act;
	164	}
	165	}
	166	}
	167	}
	168	}
	169
	170	int in_combos_do(int keys, const int *binds, int last_key, int combo_keys, int combo_acts)
	171	{
	172	int i, ret = 0;
	173
	174	for (i = 0; i <= last_key; i++)
	175	{
	176	int acts, acts_c, u;
	177
	178	if (!(keys & (1 << i)))
	179	continue;
	180
	181	acts = binds[IN_BIND_OFFS(i, IN_BINDTYPE_EMU)];
	182	if (!acts)
	183	continue;
	184
	185	if (!(combo_keys & (1 << i))) {
	186	ret \|= acts;
	187	continue;
	188	}
	189
	190	acts_c = acts & combo_acts;
	191	u = last_key;
	192	if (acts_c) {
	193	// let's try to find the other one
	194	for (u = i + 1; u <= last_key; u++)
	195	if ( (keys & (1 << u)) && (binds[IN_BIND_OFFS(u, IN_BINDTYPE_EMU)] & acts_c) ) {
	196	ret \|= acts_c & binds[IN_BIND_OFFS(u, IN_BINDTYPE_EMU)];
	197	keys &= ~((1 << i) \| (1 << u));
	198	break;
	199	}
	200	}
	201	// add non-combo actions if combo ones were not found
	202	if (u >= last_key)
	203	ret \|= acts & ~combo_acts;
	204	}
	205
	206	return ret;
	207	}
	208
	209	void in_probe(void)
	210	{
	211	int i;
	212
	213	in_have_async_devs = 0;
	214	for (i = 0; i < in_dev_count; i++)
	215	in_devices[i].probed = 0;
	216
	217	for (i = 1; i < IN_DRVID_COUNT; i++)
	218	in_drivers[i].probe();
	219
	220	/* get rid of devs without binds and probes */
	221	for (i = 0; i < in_dev_count; i++) {
	222	if (!in_devices[i].probed && in_devices[i].binds == NULL) {
	223	in_dev_count--;
	224	if (i < in_dev_count) {
	225	free(in_devices[i].name);
	226	memmove(&in_devices[i], &in_devices[i+1],
	227	(in_dev_count - i) * sizeof(in_devices[0]));
	228	}
	229
	230	continue;
	231	}
	232
	233	if (in_devices[i].probed && in_devices[i].drv_fd_hnd == -1)
	234	in_have_async_devs = 1;
	235	}
	236
	237	if (in_have_async_devs)
	238	lprintf("input: async-only devices detected..\n");
	239	}
	240
	241	/* async update */
	242	int in_update(int *result)
	243	{
	244	int i, ret = 0;
	245
	246	for (i = 0; i < in_dev_count; i++) {
	247	in_dev_t *dev = &in_devices[i];
	248	if (dev->probed && dev->binds != NULL) {
	249	// FIXME: this is stupid, make it indirect
	250	switch (dev->drv_id) {
	251	#ifdef IN_EVDEV
	252	case IN_DRVID_EVDEV:
	253	ret \|= in_evdev_update(dev->drv_data, dev->binds, result);
	254	break;
	255	#endif
	256	#ifdef IN_GP2X
	257	case IN_DRVID_GP2X:
	258	ret \|= in_gp2x_update(dev->drv_data, dev->binds, result);
	259	break;
	260	#endif
	261	#ifdef IN_VK
	262	case IN_DRVID_VK:
	263	ret \|= in_vk_update(dev->drv_data, dev->binds, result);
	264	break;
	265	#endif
	266	}
	267	}
	268	}
	269
	270	return ret;
	271	}
	272
	273	void in_set_blocking(int is_blocking)
	274	{
	275	int i, ret;
	276
	277	/* have_async_devs means we will have to do all reads async anyway.. */
	278	if (!in_have_async_devs) {
	279	for (i = 0; i < in_dev_count; i++) {
	280	if (in_devices[i].probed)
	281	DRV(in_devices[i].drv_id).set_blocking(in_devices[i].drv_data, is_blocking);
	282	}
	283	}
	284
	285	menu_key_state = 0;
	286
	287	/* flush events */
	288	do {
	289	ret = in_update_keycode(NULL, NULL, 0);
	290	} while (ret >= 0);
	291	}
	292
	293	static int in_update_kc_async(int dev_id_out, int is_down_out, int timeout_ms)
	294	{
	295	int i, is_down, result;
	296	unsigned int ticks;
	297
	298	ticks = plat_get_ticks_ms();
	299
	300	while (1)
	301	{
	302	for (i = 0; i < in_dev_count; i++) {
	303	in_dev_t *d = &in_devices[i];
	304	if (!d->probed)
	305	continue;
	306
	307	result = DRV(d->drv_id).update_keycode(d->drv_data, &is_down);
	308	if (result == -1)
	309	continue;
	310
	311	if (dev_id_out)
	312	*dev_id_out = i;
	313	if (is_down_out)
	314	*is_down_out = is_down;
	315	return result;
	316	}
	317
	318	if (timeout_ms >= 0 && (int)(plat_get_ticks_ms() - ticks) > timeout_ms)
	319	break;
	320
	321	plat_sleep_ms(10);
	322	}
	323
	324	return -1;
	325	}
	326
	327	/*
	328	* wait for a press, always return some keycode or -1 on timeout or error
	329	*/
	330	int in_update_keycode(int dev_id_out, int is_down_out, int timeout_ms)
	331	{
	332	int result = -1, dev_id = 0, is_down, result_menu;
	333	int fds_hnds[IN_MAX_DEVS];
	334	int i, ret, count = 0;
	335	in_drv_t *drv = NULL;
	336	unsigned int ticks;
	337
	338	if (in_have_async_devs) {
	339	result = in_update_kc_async(&dev_id, &is_down, timeout_ms);
	340	if (result == -1)
	341	return -1;
	342	drv = &DRV(in_devices[dev_id].drv_id);
	343	goto finish;
	344	}
	345
	346	ticks = plat_get_ticks_ms();
	347
	348	for (i = 0; i < in_dev_count; i++) {
	349	if (in_devices[i].probed)
	350	fds_hnds[count++] = in_devices[i].drv_fd_hnd;
	351	}
	352
	353	if (count == 0) {
	354	/* don't deadlock, fail */
	355	lprintf("input: failed to find devices to read\n");
	356	exit(1);
	357	}
	358
	359	while (1)
	360	{
	361	ret = plat_wait_event(fds_hnds, count, timeout_ms);
	362	if (ret < 0)
	363	break;
	364
	365	for (i = 0; i < in_dev_count; i++) {
	366	if (in_devices[i].drv_fd_hnd == ret) {
	367	dev_id = i;
	368	break;
	369	}
	370	}
	371
	372	drv = &DRV(in_devices[dev_id].drv_id);
	373	result = drv->update_keycode(in_devices[dev_id].drv_data, &is_down);
	374
	375	/* update_keycode() might return -1 when some not interesting
	376	* event happened, like sync event for evdev. */
	377	if (result >= 0)
	378	break;
	379
	380	if (timeout_ms >= 0) {
	381	unsigned int ticks2 = plat_get_ticks_ms();
	382	timeout_ms -= ticks2 - ticks;
	383	ticks = ticks2;
	384	if (timeout_ms <= 0)
	385	break;
	386	}
	387	}
	388
	389	if (result == -1)
	390	return -1;
	391	finish:
	392	/* keep track of menu key state, to allow mixing
	393	* in_update_keycode() and in_menu_wait_any() calls */
	394	result_menu = drv->menu_translate(result);
	395	if (result_menu != 0) {
	396	if (is_down)
	397	menu_key_state \|= result_menu;
	398	else
	399	menu_key_state &= ~result_menu;
	400	}
	401
	402	if (dev_id_out != NULL)
	403	*dev_id_out = dev_id;
	404	if (is_down_out != NULL)
	405	*is_down_out = is_down;
	406	return result;
	407	}
	408
	409	/* same as above, only return bitfield of PBTN_* */
	410	int in_menu_wait_any(int timeout_ms)
	411	{
	412	int keys_old = menu_key_state;
	413
	414	while (1)
	415	{
	416	int code, is_down = 0, dev_id = 0;
	417
	418	code = in_update_keycode(&dev_id, &is_down, timeout_ms);
	419	if (code >= 0)
	420	code = DRV(in_devices[dev_id].drv_id).menu_translate(code);
	421
	422	if (timeout_ms >= 0)
	423	break;
	424	if (code < 0)
	425	continue;
	426	menu_last_used_dev = dev_id;
	427	if (keys_old != menu_key_state)
	428	break;
	429	}
	430
	431	return menu_key_state;
	432	}
	433
	434	/* wait for menu input, do autorepeat */
	435	int in_menu_wait(int interesting, int autorep_delay_ms)
	436	{
	437	static int inp_prev = 0;
	438	static int repeats = 0;
	439	int ret, release = 0, wait = 450;
	440
	441	if (repeats)
	442	wait = autorep_delay_ms;
	443
	444	ret = in_menu_wait_any(wait);
	445	if (ret == inp_prev)
	446	repeats++;
	447
	448	while (!(ret & interesting)) {
	449	ret = in_menu_wait_any(-1);
	450	release = 1;
	451	}
	452
	453	if (release \|\| ret != inp_prev)
	454	repeats = 0;
	455
	456	inp_prev = ret;
	457
	458	/* we don't need diagonals in menus */
	459	if ((ret & PBTN_UP) && (ret & PBTN_LEFT)) ret &= ~PBTN_LEFT;
	460	if ((ret & PBTN_UP) && (ret & PBTN_RIGHT)) ret &= ~PBTN_RIGHT;
	461	if ((ret & PBTN_DOWN) && (ret & PBTN_LEFT)) ret &= ~PBTN_LEFT;
	462	if ((ret & PBTN_DOWN) && (ret & PBTN_RIGHT)) ret &= ~PBTN_RIGHT;
	463
	464	return ret;
	465	}
	466
	467	const int *in_get_dev_binds(int dev_id)
	468	{
	469	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
	470	return NULL;
	471
	472	return in_devices[dev_id].binds;
	473	}
	474
	475	const int *in_get_dev_def_binds(int dev_id)
	476	{
	477	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
	478	return NULL;
	479
	480	return in_devices[dev_id].binds + in_devices[dev_id].key_count * IN_BINDTYPE_COUNT;
	481	}
	482
	483	int in_get_dev_info(int dev_id, int what)
	484	{
	485	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
	486	return 0;
	487
	488	switch (what) {
	489	case IN_INFO_BIND_COUNT:
	490	return in_devices[dev_id].key_count;
	491	case IN_INFO_DOES_COMBOS:
	492	return in_devices[dev_id].does_combos;
	493	}
	494
	495	return 0;
	496	}
	497
	498	const char *in_get_dev_name(int dev_id, int must_be_active, int skip_pfix)
	499	{
	500	const char name, tmp;
	501
	502	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
	503	return NULL;
	504
	505	if (must_be_active && !in_devices[dev_id].probed)
	506	return NULL;
	507
	508	name = in_devices[dev_id].name;
	509	if (name == NULL \|\| !skip_pfix)
	510	return name;
	511
	512	/* skip prefix */
	513	tmp = strchr(name, ':');
	514	if (tmp != NULL)
	515	name = tmp + 1;
	516
	517	return name;
	518	}
	519
	520	/* never returns NULL */
	521	const char *in_get_key_name(int dev_id, int keycode)
	522	{
	523	static char xname[16];
	524	const char *name;
	525
	526	if (dev_id < 0) /* want last used dev? */
	527	dev_id = menu_last_used_dev;
	528
	529	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
	530	return "Unkn0";
	531
	532	if (keycode < 0) /* want name for menu key? */
	533	keycode = DRV(in_devices[dev_id].drv_id).menu_translate(keycode);
	534
	535	name = DRV(in_devices[dev_id].drv_id).get_key_name(keycode);
	536	if (name != NULL)
	537	return name;
	538
	539	/* assume scancode */
	540	if ((keycode >= '0' && keycode <= '9') \|\| (keycode >= 'a' && keycode <= 'z')
	541	\|\| (keycode >= 'A' && keycode <= 'Z'))
	542	sprintf(xname, "%c", keycode);
	543	else
	544	sprintf(xname, "\\x%02X", keycode);
	545	return xname;
	546	}
	547
	548	int in_bind_key(int dev_id, int keycode, int mask, int bind_type, int force_unbind)
	549	{
	550	int ret, count;
	551	in_dev_t *dev;
	552
	553	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS \|\| bind_type >= IN_BINDTYPE_COUNT)
	554	return -1;
	555
	556	dev = &in_devices[dev_id];
	557	count = dev->key_count;
	558
	559	if (dev->binds == NULL) {
	560	if (force_unbind)
	561	return 0;
	562	dev->binds = in_alloc_binds(dev->drv_id, count);
	563	if (dev->binds == NULL)
	564	return -1;
	565	}
	566
	567	if (keycode < 0 \|\| keycode >= count)
	568	return -1;
	569
	570	if (force_unbind)
	571	dev->binds[IN_BIND_OFFS(keycode, bind_type)] &= ~mask;
	572	else
	573	dev->binds[IN_BIND_OFFS(keycode, bind_type)] ^= mask;
	574
	575	ret = DRV(dev->drv_id).clean_binds(dev->drv_data, dev->binds,
	576	dev->binds + count * IN_BINDTYPE_COUNT);
	577	if (ret == 0) {
	578	free(dev->binds);
	579	dev->binds = NULL;
	580	}
	581
	582	return 0;
	583	}
	584
	585	void in_unbind_all(int dev_id, int act_mask, int bind_type)
	586	{
	587	int i, count;
	588	in_dev_t *dev;
	589
	590	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS \|\| bind_type >= IN_BINDTYPE_COUNT)
	591	return;
	592
	593	dev = &in_devices[dev_id];
	594	count = dev->key_count;
	595
	596	if (dev->binds == NULL)
	597	return;
	598
	599	for (i = 0; i < count; i++)
	600	dev->binds[IN_BIND_OFFS(i, bind_type)] &= ~act_mask;
	601	}
	602
	603	/* returns device id, or -1 on error */
	604	int in_config_parse_dev(const char *name)
	605	{
	606	int drv_id = -1, i;
	607
	608	for (i = 0; i < IN_DRVID_COUNT; i++) {
	609	int len = strlen(in_drivers[i].prefix);
	610	if (strncmp(name, in_drivers[i].prefix, len) == 0) {
	611	drv_id = i;
	612	break;
	613	}
	614	}
	615
	616	if (drv_id < 0) {
	617	lprintf("input: missing driver for %s\n", name);
	618	return -1;
	619	}
	620
	621	for (i = 0; i < in_dev_count; i++)
	622	{
	623	if (in_devices[i].name == NULL)
	624	continue;
	625	if (strcmp(in_devices[i].name, name) == 0)
	626	return i;
	627	}
	628
	629	if (i >= IN_MAX_DEVS)
	630	{
	631	/* try to find unused device */
	632	for (i = 0; i < IN_MAX_DEVS; i++)
	633	if (in_devices[i].name == NULL) break;
	634	if (i >= IN_MAX_DEVS) {
	635	lprintf("input: too many devices, can't add %s\n", name);
	636	return -1;
	637	}
	638	}
	639
	640	memset(&in_devices[i], 0, sizeof(in_devices[i]));
	641
	642	in_devices[i].name = strdup(name);
	643	if (in_devices[i].name == NULL)
	644	return -1;
	645
	646	in_devices[i].key_count = DRV(drv_id).get_bind_count();
	647	in_devices[i].drv_id = drv_id;
	648
	649	if (i + 1 > in_dev_count)
	650	in_dev_count = i + 1;
	651
	652	return i;
	653	}
	654
	655	/*
	656	* To reduce size of game specific configs, default binds are not saved.
	657	* So we mark default binds in in_config_start(), override them in in_config_bind_key(),
	658	* and restore whatever default binds are left in in_config_end().
	659	*/
	660	void in_config_start(void)
	661	{
	662	int i;
	663
	664	/* mark all default binds, so they get overwritten by func below */
	665	for (i = 0; i < IN_MAX_DEVS; i++) {
	666	int n, count, binds, def_binds;
	667
	668	binds = in_devices[i].binds;
	669	if (binds == NULL)
	670	continue;
	671
	672	count = in_devices[i].key_count;
	673	def_binds = binds + count * IN_BINDTYPE_COUNT;
	674
	675	for (n = 0; n < count * IN_BINDTYPE_COUNT; n++)
	676	if (binds[n] == def_binds[n])
	677	binds[n] = -1;
	678	}
	679	}
	680
	681	int in_config_bind_key(int dev_id, const char *key, int acts, int bind_type)
	682	{
	683	in_dev_t *dev;
	684	int i, offs, kc;
	685
	686	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS \|\| bind_type >= IN_BINDTYPE_COUNT)
	687	return -1;
	688	dev = &in_devices[dev_id];
	689
	690	/* maybe a raw code? */
	691	if (key[0] == '\\' && key[1] == 'x') {
	692	char *p = NULL;
	693	kc = (int)strtoul(key + 2, &p, 16);
	694	if (p == NULL \|\| *p != 0)
	695	kc = -1;
	696	}
	697	else {
	698	/* device specific key name */
	699	if (dev->binds == NULL) {
	700	dev->binds = in_alloc_binds(dev->drv_id, dev->key_count);
	701	if (dev->binds == NULL)
	702	return -1;
	703	in_config_start();
	704	}
	705
	706	kc = DRV(dev->drv_id).get_key_code(key);
	707	if (kc < 0 && strlen(key) == 1) {
	708	/* assume scancode */
	709	kc = key[0];
	710	}
	711	}
	712
	713	if (kc < 0 \|\| kc >= dev->key_count) {
	714	lprintf("input: bad key: %s\n", key);
	715	return -1;
	716	}
	717
	718	if (bind_type == IN_BINDTYPE_NONE) {
	719	for (i = 0; i < IN_BINDTYPE_COUNT; i++)
	720	dev->binds[IN_BIND_OFFS(kc, i)] = 0;
	721	return 0;
	722	}
	723
	724	offs = IN_BIND_OFFS(kc, bind_type);
	725	if (dev->binds[offs] == -1)
	726	dev->binds[offs] = 0;
	727	dev->binds[offs] \|= acts;
	728	return 0;
	729	}
	730
	731	void in_config_end(void)
	732	{
	733	int i;
	734
	735	for (i = 0; i < IN_MAX_DEVS; i++) {
	736	int n, t, ret, count, binds, def_binds;
	737	in_dev_t *dev = &in_devices[i];
	738
	739	if (dev->binds == NULL)
	740	continue;
	741
	742	count = dev->key_count;
	743	binds = dev->binds;
	744	def_binds = binds + count * IN_BINDTYPE_COUNT;
	745
	746	for (n = 0; n < count; n++) {
	747	int is_default = 1;
	748	for (t = 0; t < IN_BINDTYPE_COUNT; t++)
	749	if (binds[IN_BIND_OFFS(n, t)] == -1)
	750	binds[IN_BIND_OFFS(n, t)] = 0;
	751	else
	752	is_default = 0;
	753
	754	if (is_default)
	755	for (t = 0; t < IN_BINDTYPE_COUNT; t++)
	756	binds[IN_BIND_OFFS(n, t)] = def_binds[IN_BIND_OFFS(n, t)];
	757	}
	758
	759	if (dev->drv_data == NULL)
	760	continue;
	761
	762	ret = DRV(dev->drv_id).clean_binds(dev->drv_data, binds, def_binds);
	763	if (ret == 0) {
	764	/* no useable binds */
	765	free(dev->binds);
	766	dev->binds = NULL;
	767	}
	768	}
	769	}
	770
	771	void in_debug_dump(void)
	772	{
	773	int i;
	774
	775	lprintf("# drv probed binds name\n");
	776	for (i = 0; i < IN_MAX_DEVS; i++) {
	777	in_dev_t *d = &in_devices[i];
	778	if (!d->probed && d->name == NULL && d->binds == NULL)
	779	continue;
	780	lprintf("%d %3d %6c %5c %s\n", i, d->drv_id, d->probed ? 'y' : 'n',
	781	d->binds ? 'y' : 'n', d->name);
	782	}
	783	}
	784
	785	/* handlers for unknown/not_preset drivers */
	786
	787	static void in_def_probe(void) {}
	788	static void in_def_free(void *drv_data) {}
	789	static int in_def_get_bind_count(void) { return 0; }
	790	static void in_def_get_def_binds(int *binds) {}
	791	static int in_def_clean_binds(void drv_data, int b, int *db) { return 0; }
	792	static void in_def_set_blocking(void *data, int y) {}
	793	static int in_def_update_keycode(void drv_data, int is_down) { return 0; }
	794	static int in_def_menu_translate(int keycode) { return keycode; }
	795	static int in_def_get_key_code(const char *key_name) { return 0; }
	796	static const char *in_def_get_key_name(int keycode) { return NULL; }
	797
	798	void in_init(void)
	799	{
	800	int i;
	801
	802	memset(in_drivers, 0, sizeof(in_drivers));
	803	memset(in_devices, 0, sizeof(in_devices));
	804	in_dev_count = 0;
	805
	806	for (i = 0; i < IN_DRVID_COUNT; i++) {
	807	in_drivers[i].prefix = "none:";
	808	in_drivers[i].probe = in_def_probe;
	809	in_drivers[i].free = in_def_free;
	810	in_drivers[i].get_bind_count = in_def_get_bind_count;
	811	in_drivers[i].get_def_binds = in_def_get_def_binds;
	812	in_drivers[i].clean_binds = in_def_clean_binds;
	813	in_drivers[i].set_blocking = in_def_set_blocking;
	814	in_drivers[i].update_keycode = in_def_update_keycode;
	815	in_drivers[i].menu_translate = in_def_menu_translate;
	816	in_drivers[i].get_key_code = in_def_get_key_code;
	817	in_drivers[i].get_key_name = in_def_get_key_name;
	818	}
	819
	820	#ifdef IN_GP2X
	821	in_gp2x_init(&in_drivers[IN_DRVID_GP2X]);
	822	#endif
	823	#ifdef IN_EVDEV
	824	in_evdev_init(&in_drivers[IN_DRVID_EVDEV]);
	825	#endif
	826	#ifdef IN_VK
	827	in_vk_init(&in_drivers[IN_DRVID_VK]);
	828	#endif
	829	}
	830
	831	#if 0
	832	int main(void)
	833	{
	834	int ret;
	835
	836	in_init();
	837	in_probe();
	838
	839	in_set_blocking(1);
	840
	841	#if 1
	842	while (1) {
	843	int dev = 0, down;
	844	ret = in_update_keycode(&dev, &down);
	845	lprintf("#%i: %i %i (%s)\n", dev, down, ret, in_get_key_name(dev, ret));
	846	}
	847	#else
	848	while (1) {
	849	ret = in_menu_wait_any();
	850	lprintf("%08x\n", ret);
	851	}
	852	#endif
	853
	854	return 0;
	855	}
	856	#endif