[libpicofe.git] / common / input.c

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

#include "common.h"
#include "input.h"
#include "../linux/in_evdev.h"
#include "../gp2x/in_gp2x.h"

typedef struct
{
	int drv_id;
	int drv_fd_hnd;
	void *drv_data;
	char *name;
	int *binds;
	int probed: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;

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


static int in_bind_count(int drv_id)
{
	int count = DRV(drv_id).get_bind_count();
	if (count <= 0)
		printf("input: failed to get bind count for drv %d\n", drv_id);

	return count;
}

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

	count = in_bind_count(drv_id);
	if (count <= 0)
		return NULL;

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

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

	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 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) {
			printf("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);
	if (binds == NULL) {
		free(tmp);
		return;
	}

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

	printf("input: new device #%d \"%s\"\n", i, name);
update:
	in_devices[i].probed = 1;
	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);
		if (ret == 0) {
			/* no useable binds */
			free(in_devices[i].binds);
			in_devices[i].binds = NULL;
		}
	}
}

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)
		printf("input: async-only devices detected..\n");
}

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

	for (i = 0; i < in_dev_count; i++) {
		in_dev_t *dev = &in_devices[i];
		if (dev->probed && dev->binds != NULL) {
			switch (dev->drv_id) {
#ifdef IN_EVDEV
			case IN_DRVID_EVDEV:
				result |= in_evdev_update(dev->drv_data, dev->binds);
				break;
#endif
#ifdef IN_GP2X
			case IN_DRVID_GP2X:
				result |= in_gp2x_update(dev->drv_data, dev->binds);
				break;
#endif
			}
		}
	}

	return result;
}

static int menu_key_state = 0;

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);
}

/* TODO: move.. */
#include <unistd.h>
#include <sys/time.h>
#include <time.h>

static int in_update_kc_async(int *dev_id_out, int *is_down_out, int timeout_ms)
{
	struct timeval start, now;
	int i, is_down, result;

	gettimeofday(&start, NULL);

	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) {
			gettimeofday(&now, NULL);
			if ((now.tv_sec - start.tv_sec) * 1000 +
					(now.tv_usec - start.tv_usec) / 1000 > timeout_ms)
				break;
		}

		usleep(10000);
	}

	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 = 0, dev_id = 0, is_down, result_menu;
	int fds_hnds[IN_MAX_DEVS];
	int i, ret, count = 0;
	in_drv_t *drv;

	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;
	}

	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 */
		printf("input: failed to find devices to read\n");
		exit(1);
	}

again:
	/* TODO: move this block to platform/linux */
	{
		struct timeval tv, *timeout = NULL;
		int fdmax = -1;
		fd_set fdset;

		if (timeout_ms >= 0) {
			tv.tv_sec = timeout_ms / 1000;
			tv.tv_usec = (timeout_ms % 1000) * 1000;
			timeout = &tv;
		}

		FD_ZERO(&fdset);
		for (i = 0; i < count; i++) {
			if (fds_hnds[i] > fdmax) fdmax = fds_hnds[i];
			FD_SET(fds_hnds[i], &fdset);
		}

		ret = select(fdmax + 1, &fdset, NULL, NULL, timeout);
		if (ret == -1)
		{
			perror("input: select failed");
			sleep(1);
			return -1;
		}

		if (ret == 0)
			return -1; /* timeout */

		for (i = 0; i < count; i++)
			if (FD_ISSET(fds_hnds[i], &fdset))
				ret = fds_hnds[i];
	}

	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.
	 * XXX: timeout restarts.. */
	if (result == -1)
		goto again;

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;
		if (keys_old != menu_key_state)
			break;
	}

	return menu_key_state;
}

/* wait for menu input, do autorepeat */
int in_menu_wait(int interesting)
{
	static int inp_prev = 0;
	static int repeats = 0;
	int ret, release = 0, wait = 666;

	if (repeats)
		wait = 33;

	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)
{
	int count;

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

	count = in_bind_count(in_devices[dev_id].drv_id);
	return in_devices[dev_id].binds + count;
}

int in_get_dev_bind_count(int dev_id)
{
	if (dev_id < 0 || dev_id >= IN_MAX_DEVS)
		return 0;

	return in_bind_count(in_devices[dev_id].drv_id);
}

const char *in_get_dev_name(int dev_id, int must_be_active)
{
	if (dev_id < 0 || dev_id >= IN_MAX_DEVS)
		return NULL;

	if (must_be_active && !in_devices[dev_id].probed)
		return NULL;
	return in_devices[dev_id].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 || dev_id >= IN_MAX_DEVS)
		return "Unkn0";

	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 force_unbind)
{
	int ret, count;
	in_dev_t *dev;

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

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

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

	return 0;
}

/* 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) {
		printf("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) {
			printf("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;

	if (i + 1 > in_dev_count)
		in_dev_count = i + 1;
	in_devices[i].drv_id = drv_id;

	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_bind_count(in_devices[i].drv_id);
		def_binds = binds + count;

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

int in_config_bind_key(int dev_id, const char *key, int binds)
{
	int count, kc;
	in_dev_t *dev;

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

	count = in_bind_count(dev->drv_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);
			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 >= count) {
		printf("input: bad key: %s\n", key);
		return -1;
	}

	if (dev->binds[kc] == -1)
		dev->binds[kc] = 0;
	dev->binds[kc] |= binds;

	return 0;
}

void in_config_end(void)
{
	int i;

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

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

		count = in_bind_count(dev->drv_id);
		binds = dev->binds;
		def_binds = binds + count;

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

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

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

void in_debug_dump(void)
{
	int i;

	printf("# 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;
		printf("%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 *binds) { 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
}

#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);
		printf("#%i: %i %i (%s)\n", dev, down, ret, in_get_key_name(dev, ret));
	}
#else
	while (1) {
		ret = in_menu_wait_any();
		printf("%08x\n", ret);
	}
#endif

	return 0;
}
#endif
Commit	Line	Data
2258f158	1	#include <stdio.h>
	2	#include <stdlib.h>
	3	#include <string.h>
	4
fce20e73	5	#include "common.h"
2258f158	6	#include "input.h"
34581c95	7	#include "../linux/in_evdev.h"
13b692eb	8	#include "../gp2x/in_gp2x.h"
2258f158	9
	10	typedef struct
	11	{
	12	int drv_id;
7f022a8d	13	int drv_fd_hnd;
2258f158	14	void *drv_data;
2258f158	15	char *name;
906bdc9f	16	int *binds;
2258f158	17	int probed:1;
2258f158	18	} in_dev_t;
2258f158	19
da767bd5	20	static in_drv_t in_drivers[IN_DRVID_COUNT];
2258f158	21	static in_dev_t in_devices[IN_MAX_DEVS];
2258f158	22	static int in_dev_count = 0;
13b692eb	23	static int in_have_async_devs = 0;
2258f158	24
da767bd5	25	#define DRV(id) in_drivers[(unsigned)(id) < IN_DRVID_COUNT ? (id) : 0]
da767bd5	26
13b692eb	27
2258f158	28	static int in_bind_count(int drv_id)
2258f158	29	{
da767bd5	30	int count = DRV(drv_id).get_bind_count();
2258f158	31	if (count <= 0)
	32	printf("input: failed to get bind count for drv %d\n", drv_id);
	33
	34	return count;
	35	}
	36
	37	static int *in_alloc_binds(int drv_id)
	38	{
da767bd5	39	int count, *binds;
2258f158	40
2258f158	41	count = in_bind_count(drv_id);
da767bd5	42	if (count <= 0)
2258f158	43	return NULL;
2258f158	44
da767bd5	45	binds = calloc(count * 2, sizeof(binds[0]));
	46	if (binds == NULL)
	47	return NULL;
	48
	49	DRV(drv_id).get_def_binds(binds + count);
	50	memcpy(binds, binds + count, count * sizeof(binds[0]));
	51
	52	return binds;
2258f158	53	}
	54
	55	static void in_free(in_dev_t *dev)
	56	{
da767bd5	57	if (dev->probed)
da767bd5	58	DRV(dev->drv_id).free(dev->drv_data);
2258f158	59	dev->probed = 0;
	60	dev->drv_data = NULL;
	61	free(dev->name);
	62	dev->name = NULL;
	63	free(dev->binds);
	64	dev->binds = NULL;
	65	}
	66
13b692eb	67	/* to be called by drivers
13b692eb	68	* async devices must set drv_fd_hnd to -1 */
7f022a8d	69	void in_register(const char nname, int drv_id, int drv_fd_hnd, void drv_data)
2258f158	70	{
da767bd5	71	int i, ret, dupe_count = 0, *binds;
2258f158	72	char name[256], name_end, tmp;
	73
	74	strncpy(name, nname, sizeof(name));
	75	name[sizeof(name)-12] = 0;
	76	name_end = name + strlen(name);
	77
	78	for (i = 0; i < in_dev_count; i++)
	79	{
	80	if (in_devices[i].name == NULL)
	81	continue;
	82	if (strcmp(in_devices[i].name, name) == 0)
	83	{
	84	if (in_devices[i].probed) {
	85	dupe_count++;
	86	sprintf(name_end, " [%d]", dupe_count);
	87	continue;
	88	}
	89	goto update;
	90	}
	91	}
	92
	93	if (i >= IN_MAX_DEVS)
	94	{
	95	/* try to find unused device */
	96	for (i = 0; i < IN_MAX_DEVS; i++)
	97	if (!in_devices[i].probed) break;
	98	if (i >= IN_MAX_DEVS) {
	99	printf("input: too many devices, can't add %s\n", name);
	100	return;
	101	}
	102	in_free(&in_devices[i]);
	103	}
	104
	105	tmp = strdup(name);
	106	if (tmp == NULL)
	107	return;
	108
	109	binds = in_alloc_binds(drv_id);
	110	if (binds == NULL) {
	111	free(tmp);
	112	return;
	113	}
	114
	115	in_devices[i].name = tmp;
	116	in_devices[i].binds = binds;
	117	if (i + 1 > in_dev_count)
	118	in_dev_count = i + 1;
	119
	120	printf("input: new device #%d \"%s\"\n", i, name);
	121	update:
	122	in_devices[i].probed = 1;
	123	in_devices[i].drv_id = drv_id;
7f022a8d	124	in_devices[i].drv_fd_hnd = drv_fd_hnd;
2258f158	125	in_devices[i].drv_data = drv_data;
da767bd5	126
	127	if (in_devices[i].binds != NULL) {
	128	ret = DRV(drv_id).clean_binds(drv_data, in_devices[i].binds);
	129	if (ret == 0) {
	130	/* no useable binds */
	131	free(in_devices[i].binds);
	132	in_devices[i].binds = NULL;
	133	}
	134	}
2258f158	135	}
	136
	137	void in_probe(void)
	138	{
	139	int i;
13b692eb	140
13b692eb	141	in_have_async_devs = 0;
2258f158	142	for (i = 0; i < in_dev_count; i++)
	143	in_devices[i].probed = 0;
	144
da767bd5	145	for (i = 1; i < IN_DRVID_COUNT; i++)
da767bd5	146	in_drivers[i].probe();
2258f158	147
	148	/* get rid of devs without binds and probes */
	149	for (i = 0; i < in_dev_count; i++) {
	150	if (!in_devices[i].probed && in_devices[i].binds == NULL) {
	151	in_dev_count--;
	152	if (i < in_dev_count) {
	153	free(in_devices[i].name);
	154	memmove(&in_devices[i], &in_devices[i+1],
	155	(in_dev_count - i) * sizeof(in_devices[0]));
	156	}
13b692eb	157
13b692eb	158	continue;
2258f158	159	}
13b692eb	160
	161	if (in_devices[i].probed && in_devices[i].drv_fd_hnd == -1)
	162	in_have_async_devs = 1;
2258f158	163	}
13b692eb	164
	165	if (in_have_async_devs)
	166	printf("input: async-only devices detected..\n");
2258f158	167	}
2258f158	168
7f022a8d	169	/* async update */
2258f158	170	int in_update(void)
	171	{
	172	int i, result = 0;
	173
	174	for (i = 0; i < in_dev_count; i++) {
906bdc9f	175	in_dev_t *dev = &in_devices[i];
906bdc9f	176	if (dev->probed && dev->binds != NULL) {
906bdc9f	177	switch (dev->drv_id) {
da767bd5	178	#ifdef IN_EVDEV
595491c4	179	case IN_DRVID_EVDEV:
86883f7f	180	result \|= in_evdev_update(dev->drv_data, dev->binds);
595491c4	181	break;
13b692eb	182	#endif
	183	#ifdef IN_GP2X
	184	case IN_DRVID_GP2X:
	185	result \|= in_gp2x_update(dev->drv_data, dev->binds);
	186	break;
da767bd5	187	#endif
595491c4	188	}
2258f158	189	}
	190	}
	191
	192	return result;
	193	}
	194
906bdc9f	195	static int menu_key_state = 0;
906bdc9f	196
595491c4	197	void in_set_blocking(int is_blocking)
595491c4	198	{
13b692eb	199	int i, ret;
595491c4	200
13b692eb	201	/* have_async_devs means we will have to do all reads async anyway.. */
	202	if (!in_have_async_devs) {
	203	for (i = 0; i < in_dev_count; i++) {
	204	if (in_devices[i].probed)
	205	DRV(in_devices[i].drv_id).set_blocking(in_devices[i].drv_data, is_blocking);
	206	}
595491c4	207	}
906bdc9f	208
906bdc9f	209	menu_key_state = 0;
13b692eb	210
906bdc9f	211	/* flush events */
13b692eb	212	do {
	213	ret = in_update_keycode(NULL, NULL, 0);
	214	} while (ret >= 0);
595491c4	215	}
595491c4	216
7f022a8d	217	/* TODO: move.. */
7f022a8d	218	#include <unistd.h>
13b692eb	219	#include <sys/time.h>
	220	#include <time.h>
	221
	222	static int in_update_kc_async(int dev_id_out, int is_down_out, int timeout_ms)
	223	{
	224	struct timeval start, now;
	225	int i, is_down, result;
	226
	227	gettimeofday(&start, NULL);
	228
	229	while (1)
	230	{
	231	for (i = 0; i < in_dev_count; i++) {
	232	in_dev_t *d = &in_devices[i];
	233	if (!d->probed)
	234	continue;
	235
	236	result = DRV(d->drv_id).update_keycode(d->drv_data, &is_down);
	237	if (result == -1)
	238	continue;
	239
	240	if (dev_id_out)
	241	*dev_id_out = i;
	242	if (is_down_out)
	243	*is_down_out = is_down;
	244	return result;
	245	}
	246
	247	if (timeout_ms >= 0) {
	248	gettimeofday(&now, NULL);
	249	if ((now.tv_sec - start.tv_sec) * 1000 +
	250	(now.tv_usec - start.tv_usec) / 1000 > timeout_ms)
	251	break;
	252	}
	253
	254	usleep(10000);
	255	}
	256
	257	return -1;
	258	}
7f022a8d	259
34581c95	260	/*
13b692eb	261	* wait for a press, always return some keycode or -1 on timeout or error
34581c95	262	*/
906bdc9f	263	int in_update_keycode(int dev_id_out, int is_down_out, int timeout_ms)
34581c95	264	{
fce20e73	265	int result = 0, dev_id = 0, is_down, result_menu;
7f022a8d	266	int fds_hnds[IN_MAX_DEVS];
	267	int i, ret, count = 0;
	268	in_drv_t *drv;
	269
13b692eb	270	if (in_have_async_devs) {
	271	result = in_update_kc_async(&dev_id, &is_down, timeout_ms);
	272	if (result == -1)
	273	return -1;
	274	drv = &DRV(in_devices[dev_id].drv_id);
	275	goto finish;
	276	}
	277
7f022a8d	278	for (i = 0; i < in_dev_count; i++) {
	279	if (in_devices[i].probed)
	280	fds_hnds[count++] = in_devices[i].drv_fd_hnd;
	281	}
34581c95	282
	283	if (count == 0) {
	284	/* don't deadlock, fail */
	285	printf("input: failed to find devices to read\n");
	286	exit(1);
	287	}
	288
7f022a8d	289	again:
	290	/* TODO: move this block to platform/linux */
	291	{
	292	struct timeval tv, *timeout = NULL;
	293	int fdmax = -1;
	294	fd_set fdset;
	295
	296	if (timeout_ms >= 0) {
	297	tv.tv_sec = timeout_ms / 1000;
	298	tv.tv_usec = (timeout_ms % 1000) * 1000;
	299	timeout = &tv;
	300	}
595491c4	301
7f022a8d	302	FD_ZERO(&fdset);
	303	for (i = 0; i < count; i++) {
	304	if (fds_hnds[i] > fdmax) fdmax = fds_hnds[i];
	305	FD_SET(fds_hnds[i], &fdset);
	306	}
	307
	308	ret = select(fdmax + 1, &fdset, NULL, NULL, timeout);
	309	if (ret == -1)
	310	{
	311	perror("input: select failed");
	312	sleep(1);
13b692eb	313	return -1;
7f022a8d	314	}
	315
	316	if (ret == 0)
13b692eb	317	return -1; /* timeout */
7f022a8d	318
	319	for (i = 0; i < count; i++)
	320	if (FD_ISSET(fds_hnds[i], &fdset))
	321	ret = fds_hnds[i];
	322	}
	323
	324	for (i = 0; i < in_dev_count; i++) {
	325	if (in_devices[i].drv_fd_hnd == ret) {
906bdc9f	326	dev_id = i;
906bdc9f	327	break;
595491c4	328	}
595491c4	329	}
7f022a8d	330
	331	drv = &DRV(in_devices[dev_id].drv_id);
	332	result = drv->update_keycode(in_devices[dev_id].drv_data, &is_down);
	333
13b692eb	334	/* update_keycode() might return -1 when some not interesting
7f022a8d	335	* event happened, like sync event for evdev.
7f022a8d	336	* XXX: timeout restarts.. */
13b692eb	337	if (result == -1)
7f022a8d	338	goto again;
34581c95	339
13b692eb	340	finish:
906bdc9f	341	/* keep track of menu key state, to allow mixing
fce20e73	342	* in_update_keycode() and in_menu_wait_any() calls */
7f022a8d	343	result_menu = drv->menu_translate(result);
906bdc9f	344	if (result_menu != 0) {
	345	if (is_down)
	346	menu_key_state \|= result_menu;
	347	else
	348	menu_key_state &= ~result_menu;
	349	}
	350
	351	if (dev_id_out != NULL)
	352	*dev_id_out = dev_id;
	353	if (is_down_out != NULL)
	354	*is_down_out = is_down;
34581c95	355	return result;
	356	}
	357
fce20e73	358	/* same as above, only return bitfield of PBTN_* */
fce20e73	359	int in_menu_wait_any(int timeout_ms)
595491c4	360	{
906bdc9f	361	int keys_old = menu_key_state;
595491c4	362
	363	while (1)
	364	{
da767bd5	365	int code, is_down = 0, dev_id = 0;
595491c4	366
906bdc9f	367	code = in_update_keycode(&dev_id, &is_down, timeout_ms);
13b692eb	368	if (code >= 0)
13b692eb	369	code = DRV(in_devices[dev_id].drv_id).menu_translate(code);
595491c4	370
fce20e73	371	if (timeout_ms >= 0)
906bdc9f	372	break;
13b692eb	373	if (code < 0)
906bdc9f	374	continue;
906bdc9f	375	if (keys_old != menu_key_state)
595491c4	376	break;
	377	}
	378
906bdc9f	379	return menu_key_state;
595491c4	380	}
595491c4	381
fce20e73	382	/* wait for menu input, do autorepeat */
	383	int in_menu_wait(int interesting)
	384	{
	385	static int inp_prev = 0;
6c263f30	386	static int repeats = 0;
6c263f30	387	int ret, release = 0, wait = 666;
fce20e73	388
6c263f30	389	if (repeats)
6c263f30	390	wait = 33;
fce20e73	391
6c263f30	392	ret = in_menu_wait_any(wait);
	393	if (ret == inp_prev)
	394	repeats++;
fce20e73	395
	396	while (!(ret & interesting)) {
	397	ret = in_menu_wait_any(-1);
	398	release = 1;
	399	}
	400
6c263f30	401	if (release \|\| ret != inp_prev)
fce20e73	402	repeats = 0;
6c263f30	403
fce20e73	404	inp_prev = ret;
fce20e73	405
6c263f30	406	/* we don't need diagonals in menus */
fce20e73	407	if ((ret & PBTN_UP) && (ret & PBTN_LEFT)) ret &= ~PBTN_LEFT;
	408	if ((ret & PBTN_UP) && (ret & PBTN_RIGHT)) ret &= ~PBTN_RIGHT;
	409	if ((ret & PBTN_DOWN) && (ret & PBTN_LEFT)) ret &= ~PBTN_LEFT;
	410	if ((ret & PBTN_DOWN) && (ret & PBTN_RIGHT)) ret &= ~PBTN_RIGHT;
	411
	412	return ret;
	413	}
	414
da767bd5	415	const int *in_get_dev_binds(int dev_id)
	416	{
	417	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
	418	return NULL;
	419
	420	return in_devices[dev_id].binds;
	421	}
	422
	423	const int *in_get_dev_def_binds(int dev_id)
	424	{
	425	int count;
	426
	427	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
	428	return NULL;
	429
	430	count = in_bind_count(in_devices[dev_id].drv_id);
	431	return in_devices[dev_id].binds + count;
	432	}
	433
	434	int in_get_dev_bind_count(int dev_id)
	435	{
	436	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
	437	return 0;
	438
	439	return in_bind_count(in_devices[dev_id].drv_id);
	440	}
	441
fce20e73	442	const char *in_get_dev_name(int dev_id, int must_be_active)
da767bd5	443	{
	444	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
	445	return NULL;
	446
fce20e73	447	if (must_be_active && !in_devices[dev_id].probed)
fce20e73	448	return NULL;
da767bd5	449	return in_devices[dev_id].name;
	450	}
	451
906bdc9f	452	/* never returns NULL */
595491c4	453	const char *in_get_key_name(int dev_id, int keycode)
595491c4	454	{
906bdc9f	455	static char xname[16];
	456	const char *name;
	457
595491c4	458	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
595491c4	459	return "Unkn0";
da767bd5	460
906bdc9f	461	name = DRV(in_devices[dev_id].drv_id).get_key_name(keycode);
	462	if (name != NULL)
	463	return name;
	464
	465	/* assume scancode */
	466	if ((keycode >= '0' && keycode <= '9') \|\| (keycode >= 'a' && keycode <= 'z')
	467	\|\| (keycode >= 'A' && keycode <= 'Z'))
	468	sprintf(xname, "%c", keycode);
	469	else
	470	sprintf(xname, "\\x%02X", keycode);
	471	return xname;
	472	}
	473
	474	int in_bind_key(int dev_id, int keycode, int mask, int force_unbind)
	475	{
	476	int ret, count;
	477	in_dev_t *dev;
	478
	479	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
	480	return -1;
	481	dev = &in_devices[dev_id];
	482
	483	if (dev->binds == NULL) {
	484	if (force_unbind)
	485	return 0;
	486	dev->binds = in_alloc_binds(dev->drv_id);
	487	if (dev->binds == NULL)
	488	return -1;
	489	}
	490
	491	count = in_bind_count(dev->drv_id);
	492	if (keycode < 0 \|\| keycode >= count)
	493	return -1;
	494
	495	if (force_unbind)
	496	dev->binds[keycode] &= ~mask;
	497	else
	498	dev->binds[keycode] ^= mask;
	499
	500	ret = DRV(dev->drv_id).clean_binds(dev->drv_data, dev->binds);
	501	if (ret == 0) {
	502	free(dev->binds);
	503	dev->binds = NULL;
	504	}
	505
	506	return 0;
da767bd5	507	}
	508
	509	/* returns device id, or -1 on error */
	510	int in_config_parse_dev(const char *name)
	511	{
	512	int drv_id = -1, i;
	513
	514	for (i = 0; i < IN_DRVID_COUNT; i++) {
	515	int len = strlen(in_drivers[i].prefix);
	516	if (strncmp(name, in_drivers[i].prefix, len) == 0) {
	517	drv_id = i;
	518	break;
	519	}
	520	}
	521
	522	if (drv_id < 0) {
	523	printf("input: missing driver for %s\n", name);
	524	return -1;
	525	}
	526
	527	for (i = 0; i < in_dev_count; i++)
	528	{
	529	if (in_devices[i].name == NULL)
	530	continue;
	531	if (strcmp(in_devices[i].name, name) == 0)
	532	return i;
	533	}
	534
	535	if (i >= IN_MAX_DEVS)
	536	{
	537	/* try to find unused device */
	538	for (i = 0; i < IN_MAX_DEVS; i++)
	539	if (in_devices[i].name == NULL) break;
	540	if (i >= IN_MAX_DEVS) {
	541	printf("input: too many devices, can't add %s\n", name);
	542	return -1;
	543	}
	544	}
	545
	546	memset(&in_devices[i], 0, sizeof(in_devices[i]));
	547
	548	in_devices[i].name = strdup(name);
	549	if (in_devices[i].name == NULL)
	550	return -1;
	551
	552	if (i + 1 > in_dev_count)
	553	in_dev_count = i + 1;
	554	in_devices[i].drv_id = drv_id;
	555
	556	return i;
	557	}
	558
6c263f30	559	/*
	560	* To reduce size of game specific configs, default binds are not saved.
	561	* So we mark default binds in in_config_start(), override them in in_config_bind_key(),
	562	* and restore whatever default binds are left in in_config_end().
	563	*/
da767bd5	564	void in_config_start(void)
	565	{
	566	int i;
	567
	568	/* mark all default binds, so they get overwritten by func below */
	569	for (i = 0; i < IN_MAX_DEVS; i++) {
	570	int n, count, binds, def_binds;
	571
906bdc9f	572	binds = in_devices[i].binds;
906bdc9f	573	if (binds == NULL)
da767bd5	574	continue;
	575
	576	count = in_bind_count(in_devices[i].drv_id);
da767bd5	577	def_binds = binds + count;
	578
	579	for (n = 0; n < count; n++)
	580	if (binds[n] == def_binds[n])
	581	binds[n] = -1;
	582	}
	583	}
	584
	585	int in_config_bind_key(int dev_id, const char *key, int binds)
	586	{
906bdc9f	587	int count, kc;
906bdc9f	588	in_dev_t *dev;
da767bd5	589
	590	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
	591	return -1;
906bdc9f	592	dev = &in_devices[dev_id];
da767bd5	593
906bdc9f	594	count = in_bind_count(dev->drv_id);
	595
	596	/* maybe a raw code? */
	597	if (key[0] == '\\' && key[1] == 'x') {
	598	char *p = NULL;
	599	kc = (int)strtoul(key + 2, &p, 16);
	600	if (p == NULL \|\| *p != 0)
	601	kc = -1;
	602	}
	603	else {
	604	/* device specific key name */
	605	if (dev->binds == NULL) {
	606	dev->binds = in_alloc_binds(dev->drv_id);
	607	if (dev->binds == NULL)
	608	return -1;
	609	in_config_start();
	610	}
	611
	612	kc = DRV(dev->drv_id).get_key_code(key);
	613	if (kc < 0 && strlen(key) == 1) {
	614	/* assume scancode */
	615	kc = key[0];
	616	}
da767bd5	617	}
da767bd5	618
906bdc9f	619	if (kc < 0 \|\| kc >= count) {
da767bd5	620	printf("input: bad key: %s\n", key);
da767bd5	621	return -1;
595491c4	622	}
595491c4	623
906bdc9f	624	if (dev->binds[kc] == -1)
	625	dev->binds[kc] = 0;
	626	dev->binds[kc] \|= binds;
da767bd5	627
	628	return 0;
	629	}
	630
	631	void in_config_end(void)
	632	{
	633	int i;
	634
	635	for (i = 0; i < IN_MAX_DEVS; i++) {
	636	int n, ret, count, binds, def_binds;
906bdc9f	637	in_dev_t *dev = &in_devices[i];
da767bd5	638
906bdc9f	639	if (dev->binds == NULL)
da767bd5	640	continue;
da767bd5	641
906bdc9f	642	count = in_bind_count(dev->drv_id);
906bdc9f	643	binds = dev->binds;
da767bd5	644	def_binds = binds + count;
	645
	646	for (n = 0; n < count; n++)
	647	if (binds[n] == -1)
	648	binds[n] = def_binds[n];
	649
906bdc9f	650	if (dev->drv_data == NULL)
da767bd5	651	continue;
da767bd5	652
906bdc9f	653	ret = DRV(dev->drv_id).clean_binds(dev->drv_data, binds);
da767bd5	654	if (ret == 0) {
da767bd5	655	/* no useable binds */
906bdc9f	656	free(dev->binds);
906bdc9f	657	dev->binds = NULL;
da767bd5	658	}
da767bd5	659	}
595491c4	660	}
595491c4	661
da767bd5	662	void in_debug_dump(void)
	663	{
	664	int i;
	665
	666	printf("# drv probed binds name\n");
	667	for (i = 0; i < IN_MAX_DEVS; i++) {
	668	in_dev_t *d = &in_devices[i];
	669	if (!d->probed && d->name == NULL && d->binds == NULL)
	670	continue;
	671	printf("%d %3d %6c %5c %s\n", i, d->drv_id, d->probed ? 'y' : 'n',
	672	d->binds ? 'y' : 'n', d->name);
	673	}
	674	}
	675
	676	/* handlers for unknown/not_preset drivers */
	677
	678	static void in_def_probe(void) {}
	679	static void in_def_free(void *drv_data) {}
	680	static int in_def_get_bind_count(void) { return 0; }
	681	static void in_def_get_def_binds(int *binds) {}
	682	static int in_def_clean_binds(void drv_data, int binds) { return 0; }
	683	static void in_def_set_blocking(void *data, int y) {}
7f022a8d	684	static int in_def_update_keycode(void drv_data, int is_down) { return 0; }
da767bd5	685	static int in_def_menu_translate(int keycode) { return keycode; }
	686	static int in_def_get_key_code(const char *key_name) { return 0; }
	687	static const char *in_def_get_key_name(int keycode) { return NULL; }
	688
2258f158	689	void in_init(void)
2258f158	690	{
da767bd5	691	int i;
	692
	693	memset(in_drivers, 0, sizeof(in_drivers));
2258f158	694	memset(in_devices, 0, sizeof(in_devices));
2258f158	695	in_dev_count = 0;
da767bd5	696
	697	for (i = 0; i < IN_DRVID_COUNT; i++) {
	698	in_drivers[i].prefix = "none:";
	699	in_drivers[i].probe = in_def_probe;
	700	in_drivers[i].free = in_def_free;
	701	in_drivers[i].get_bind_count = in_def_get_bind_count;
	702	in_drivers[i].get_def_binds = in_def_get_def_binds;
	703	in_drivers[i].clean_binds = in_def_clean_binds;
	704	in_drivers[i].set_blocking = in_def_set_blocking;
7f022a8d	705	in_drivers[i].update_keycode = in_def_update_keycode;
da767bd5	706	in_drivers[i].menu_translate = in_def_menu_translate;
	707	in_drivers[i].get_key_code = in_def_get_key_code;
	708	in_drivers[i].get_key_name = in_def_get_key_name;
	709	}
	710
13b692eb	711	#ifdef IN_GP2X
	712	in_gp2x_init(&in_drivers[IN_DRVID_GP2X]);
	713	#endif
da767bd5	714	#ifdef IN_EVDEV
	715	in_evdev_init(&in_drivers[IN_DRVID_EVDEV]);
	716	#endif
2258f158	717	}
2258f158	718
da767bd5	719	#if 0
2258f158	720	int main(void)
2258f158	721	{
34581c95	722	int ret;
34581c95	723
2258f158	724	in_init();
	725	in_probe();
	726
595491c4	727	in_set_blocking(1);
	728
	729	#if 1
	730	while (1) {
	731	int dev = 0, down;
	732	ret = in_update_keycode(&dev, &down);
	733	printf("#%i: %i %i (%s)\n", dev, down, ret, in_get_key_name(dev, ret));
	734	}
	735	#else
2258f158	736	while (1) {
fce20e73	737	ret = in_menu_wait_any();
34581c95	738	printf("%08x\n", ret);
2258f158	739	}
595491c4	740	#endif
2258f158	741
	742	return 0;
	743	}
da767bd5	744	#endif