[picodrive.git] / platform / common / input.c

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

#include "common.h"
#include "input.h"
#include "plat.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);
}

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;
	unsigned int ticks;
	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;
	}

	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 */
		printf("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;
		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 = 666;

	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)
{
	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, 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;
	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 || 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
e1f99f2b	1	#include <stdio.h>
	2	#include <stdlib.h>
	3	#include <string.h>
	4
b6820926	5	#include "common.h"
e1f99f2b	6	#include "input.h"
0403eead	7	#include "plat.h"
3b13ec65	8	#include "../linux/in_evdev.h"
217d08bc	9	#include "../gp2x/in_gp2x.h"
e1f99f2b	10
	11	typedef struct
	12	{
	13	int drv_id;
7201dc73	14	int drv_fd_hnd;
e1f99f2b	15	void *drv_data;
e1f99f2b	16	char *name;
f484a9fe	17	int *binds;
e1f99f2b	18	int probed:1;
e1f99f2b	19	} in_dev_t;
e1f99f2b	20
819ef025	21	static in_drv_t in_drivers[IN_DRVID_COUNT];
e1f99f2b	22	static in_dev_t in_devices[IN_MAX_DEVS];
e1f99f2b	23	static int in_dev_count = 0;
217d08bc	24	static int in_have_async_devs = 0;
e1f99f2b	25
819ef025	26	#define DRV(id) in_drivers[(unsigned)(id) < IN_DRVID_COUNT ? (id) : 0]
819ef025	27
217d08bc	28
e1f99f2b	29	static int in_bind_count(int drv_id)
e1f99f2b	30	{
819ef025	31	int count = DRV(drv_id).get_bind_count();
e1f99f2b	32	if (count <= 0)
	33	printf("input: failed to get bind count for drv %d\n", drv_id);
	34
	35	return count;
	36	}
	37
	38	static int *in_alloc_binds(int drv_id)
	39	{
819ef025	40	int count, *binds;
e1f99f2b	41
e1f99f2b	42	count = in_bind_count(drv_id);
819ef025	43	if (count <= 0)
e1f99f2b	44	return NULL;
e1f99f2b	45
819ef025	46	binds = calloc(count * 2, sizeof(binds[0]));
	47	if (binds == NULL)
	48	return NULL;
	49
	50	DRV(drv_id).get_def_binds(binds + count);
	51	memcpy(binds, binds + count, count * sizeof(binds[0]));
	52
	53	return binds;
e1f99f2b	54	}
	55
	56	static void in_free(in_dev_t *dev)
	57	{
819ef025	58	if (dev->probed)
819ef025	59	DRV(dev->drv_id).free(dev->drv_data);
e1f99f2b	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
217d08bc	68	/* to be called by drivers
217d08bc	69	* async devices must set drv_fd_hnd to -1 */
7201dc73	70	void in_register(const char nname, int drv_id, int drv_fd_hnd, void drv_data)
e1f99f2b	71	{
819ef025	72	int i, ret, dupe_count = 0, *binds;
e1f99f2b	73	char name[256], name_end, tmp;
	74
	75	strncpy(name, nname, sizeof(name));
	76	name[sizeof(name)-12] = 0;
	77	name_end = name + strlen(name);
	78
	79	for (i = 0; i < in_dev_count; i++)
	80	{
	81	if (in_devices[i].name == NULL)
	82	continue;
	83	if (strcmp(in_devices[i].name, name) == 0)
	84	{
	85	if (in_devices[i].probed) {
	86	dupe_count++;
	87	sprintf(name_end, " [%d]", dupe_count);
	88	continue;
	89	}
	90	goto update;
	91	}
	92	}
	93
	94	if (i >= IN_MAX_DEVS)
	95	{
	96	/* try to find unused device */
	97	for (i = 0; i < IN_MAX_DEVS; i++)
	98	if (!in_devices[i].probed) break;
	99	if (i >= IN_MAX_DEVS) {
	100	printf("input: too many devices, can't add %s\n", name);
	101	return;
	102	}
	103	in_free(&in_devices[i]);
	104	}
	105
	106	tmp = strdup(name);
	107	if (tmp == NULL)
	108	return;
	109
	110	binds = in_alloc_binds(drv_id);
	111	if (binds == NULL) {
	112	free(tmp);
	113	return;
	114	}
	115
	116	in_devices[i].name = tmp;
	117	in_devices[i].binds = binds;
	118	if (i + 1 > in_dev_count)
	119	in_dev_count = i + 1;
	120
	121	printf("input: new device #%d \"%s\"\n", i, name);
	122	update:
	123	in_devices[i].probed = 1;
	124	in_devices[i].drv_id = drv_id;
7201dc73	125	in_devices[i].drv_fd_hnd = drv_fd_hnd;
e1f99f2b	126	in_devices[i].drv_data = drv_data;
819ef025	127
	128	if (in_devices[i].binds != NULL) {
	129	ret = DRV(drv_id).clean_binds(drv_data, in_devices[i].binds);
	130	if (ret == 0) {
	131	/* no useable binds */
	132	free(in_devices[i].binds);
	133	in_devices[i].binds = NULL;
	134	}
	135	}
e1f99f2b	136	}
	137
	138	void in_probe(void)
	139	{
	140	int i;
217d08bc	141
217d08bc	142	in_have_async_devs = 0;
e1f99f2b	143	for (i = 0; i < in_dev_count; i++)
	144	in_devices[i].probed = 0;
	145
819ef025	146	for (i = 1; i < IN_DRVID_COUNT; i++)
819ef025	147	in_drivers[i].probe();
e1f99f2b	148
	149	/* get rid of devs without binds and probes */
	150	for (i = 0; i < in_dev_count; i++) {
	151	if (!in_devices[i].probed && in_devices[i].binds == NULL) {
	152	in_dev_count--;
	153	if (i < in_dev_count) {
	154	free(in_devices[i].name);
	155	memmove(&in_devices[i], &in_devices[i+1],
	156	(in_dev_count - i) * sizeof(in_devices[0]));
	157	}
217d08bc	158
217d08bc	159	continue;
e1f99f2b	160	}
217d08bc	161
	162	if (in_devices[i].probed && in_devices[i].drv_fd_hnd == -1)
	163	in_have_async_devs = 1;
e1f99f2b	164	}
217d08bc	165
	166	if (in_have_async_devs)
	167	printf("input: async-only devices detected..\n");
e1f99f2b	168	}
e1f99f2b	169
7201dc73	170	/* async update */
e1f99f2b	171	int in_update(void)
	172	{
	173	int i, result = 0;
	174
	175	for (i = 0; i < in_dev_count; i++) {
f484a9fe	176	in_dev_t *dev = &in_devices[i];
f484a9fe	177	if (dev->probed && dev->binds != NULL) {
f484a9fe	178	switch (dev->drv_id) {
819ef025	179	#ifdef IN_EVDEV
3427e573	180	case IN_DRVID_EVDEV:
483230c7	181	result \|= in_evdev_update(dev->drv_data, dev->binds);
3427e573	182	break;
217d08bc	183	#endif
	184	#ifdef IN_GP2X
	185	case IN_DRVID_GP2X:
	186	result \|= in_gp2x_update(dev->drv_data, dev->binds);
	187	break;
819ef025	188	#endif
3427e573	189	}
e1f99f2b	190	}
	191	}
	192
	193	return result;
	194	}
	195
f484a9fe	196	static int menu_key_state = 0;
f484a9fe	197
3427e573	198	void in_set_blocking(int is_blocking)
3427e573	199	{
217d08bc	200	int i, ret;
3427e573	201
217d08bc	202	/* have_async_devs means we will have to do all reads async anyway.. */
	203	if (!in_have_async_devs) {
	204	for (i = 0; i < in_dev_count; i++) {
	205	if (in_devices[i].probed)
	206	DRV(in_devices[i].drv_id).set_blocking(in_devices[i].drv_data, is_blocking);
	207	}
3427e573	208	}
f484a9fe	209
f484a9fe	210	menu_key_state = 0;
217d08bc	211
f484a9fe	212	/* flush events */
217d08bc	213	do {
	214	ret = in_update_keycode(NULL, NULL, 0);
	215	} while (ret >= 0);
3427e573	216	}
3427e573	217
217d08bc	218	static int in_update_kc_async(int dev_id_out, int is_down_out, int timeout_ms)
217d08bc	219	{
217d08bc	220	int i, is_down, result;
0403eead	221	unsigned int ticks;
217d08bc	222
0403eead	223	ticks = plat_get_ticks_ms();
217d08bc	224
	225	while (1)
	226	{
	227	for (i = 0; i < in_dev_count; i++) {
	228	in_dev_t *d = &in_devices[i];
	229	if (!d->probed)
	230	continue;
	231
	232	result = DRV(d->drv_id).update_keycode(d->drv_data, &is_down);
	233	if (result == -1)
	234	continue;
	235
	236	if (dev_id_out)
	237	*dev_id_out = i;
	238	if (is_down_out)
	239	*is_down_out = is_down;
	240	return result;
	241	}
	242
0403eead	243	if (timeout_ms >= 0 && (int)(plat_get_ticks_ms() - ticks) > timeout_ms)
0403eead	244	break;
217d08bc	245
0403eead	246	plat_sleep_ms(10);
217d08bc	247	}
	248
	249	return -1;
	250	}
7201dc73	251
3b13ec65	252	/*
217d08bc	253	* wait for a press, always return some keycode or -1 on timeout or error
3b13ec65	254	*/
f484a9fe	255	int in_update_keycode(int dev_id_out, int is_down_out, int timeout_ms)
3b13ec65	256	{
0403eead	257	int result = -1, dev_id = 0, is_down, result_menu;
7201dc73	258	int fds_hnds[IN_MAX_DEVS];
7201dc73	259	int i, ret, count = 0;
0403eead	260	unsigned int ticks;
7201dc73	261	in_drv_t *drv;
7201dc73	262
217d08bc	263	if (in_have_async_devs) {
	264	result = in_update_kc_async(&dev_id, &is_down, timeout_ms);
	265	if (result == -1)
	266	return -1;
	267	drv = &DRV(in_devices[dev_id].drv_id);
	268	goto finish;
	269	}
	270
0403eead	271	ticks = plat_get_ticks_ms();
0403eead	272
7201dc73	273	for (i = 0; i < in_dev_count; i++) {
	274	if (in_devices[i].probed)
	275	fds_hnds[count++] = in_devices[i].drv_fd_hnd;
	276	}
3b13ec65	277
	278	if (count == 0) {
	279	/* don't deadlock, fail */
	280	printf("input: failed to find devices to read\n");
	281	exit(1);
	282	}
	283
0403eead	284	while (1)
7201dc73	285	{
0403eead	286	ret = plat_wait_event(fds_hnds, count, timeout_ms);
	287	if (ret < 0)
	288	break;
7201dc73	289
0403eead	290	for (i = 0; i < in_dev_count; i++) {
	291	if (in_devices[i].drv_fd_hnd == ret) {
	292	dev_id = i;
	293	break;
	294	}
7201dc73	295	}
7201dc73	296
0403eead	297	drv = &DRV(in_devices[dev_id].drv_id);
0403eead	298	result = drv->update_keycode(in_devices[dev_id].drv_data, &is_down);
7201dc73	299
0403eead	300	/* update_keycode() might return -1 when some not interesting
	301	* event happened, like sync event for evdev. */
	302	if (result >= 0)
f484a9fe	303	break;
0403eead	304
	305	if (timeout_ms >= 0) {
	306	unsigned int ticks2 = plat_get_ticks_ms();
	307	timeout_ms -= ticks2 - ticks;
	308	ticks = ticks2;
	309	if (timeout_ms <= 0)
	310	break;
3427e573	311	}
3427e573	312	}
7201dc73	313
217d08bc	314	if (result == -1)
0403eead	315	return -1;
217d08bc	316	finish:
f484a9fe	317	/* keep track of menu key state, to allow mixing
b6820926	318	* in_update_keycode() and in_menu_wait_any() calls */
7201dc73	319	result_menu = drv->menu_translate(result);
f484a9fe	320	if (result_menu != 0) {
	321	if (is_down)
	322	menu_key_state \|= result_menu;
	323	else
	324	menu_key_state &= ~result_menu;
	325	}
	326
	327	if (dev_id_out != NULL)
	328	*dev_id_out = dev_id;
	329	if (is_down_out != NULL)
	330	*is_down_out = is_down;
3b13ec65	331	return result;
	332	}
	333
b6820926	334	/* same as above, only return bitfield of PBTN_* */
b6820926	335	int in_menu_wait_any(int timeout_ms)
3427e573	336	{
f484a9fe	337	int keys_old = menu_key_state;
3427e573	338
	339	while (1)
	340	{
819ef025	341	int code, is_down = 0, dev_id = 0;
3427e573	342
f484a9fe	343	code = in_update_keycode(&dev_id, &is_down, timeout_ms);
217d08bc	344	if (code >= 0)
217d08bc	345	code = DRV(in_devices[dev_id].drv_id).menu_translate(code);
3427e573	346
b6820926	347	if (timeout_ms >= 0)
f484a9fe	348	break;
217d08bc	349	if (code < 0)
f484a9fe	350	continue;
f484a9fe	351	if (keys_old != menu_key_state)
3427e573	352	break;
	353	}
	354
f484a9fe	355	return menu_key_state;
3427e573	356	}
3427e573	357
b6820926	358	/* wait for menu input, do autorepeat */
713c9224	359	int in_menu_wait(int interesting, int autorep_delay_ms)
b6820926	360	{
b6820926	361	static int inp_prev = 0;
299acadc	362	static int repeats = 0;
299acadc	363	int ret, release = 0, wait = 666;
b6820926	364
299acadc	365	if (repeats)
713c9224	366	wait = autorep_delay_ms;
b6820926	367
299acadc	368	ret = in_menu_wait_any(wait);
	369	if (ret == inp_prev)
	370	repeats++;
b6820926	371
	372	while (!(ret & interesting)) {
	373	ret = in_menu_wait_any(-1);
	374	release = 1;
	375	}
	376
299acadc	377	if (release \|\| ret != inp_prev)
b6820926	378	repeats = 0;
299acadc	379
b6820926	380	inp_prev = ret;
b6820926	381
299acadc	382	/* we don't need diagonals in menus */
b6820926	383	if ((ret & PBTN_UP) && (ret & PBTN_LEFT)) ret &= ~PBTN_LEFT;
	384	if ((ret & PBTN_UP) && (ret & PBTN_RIGHT)) ret &= ~PBTN_RIGHT;
	385	if ((ret & PBTN_DOWN) && (ret & PBTN_LEFT)) ret &= ~PBTN_LEFT;
	386	if ((ret & PBTN_DOWN) && (ret & PBTN_RIGHT)) ret &= ~PBTN_RIGHT;
	387
	388	return ret;
	389	}
	390
819ef025	391	const int *in_get_dev_binds(int dev_id)
	392	{
	393	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
	394	return NULL;
	395
	396	return in_devices[dev_id].binds;
	397	}
	398
	399	const int *in_get_dev_def_binds(int dev_id)
	400	{
	401	int count;
	402
	403	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
	404	return NULL;
	405
	406	count = in_bind_count(in_devices[dev_id].drv_id);
	407	return in_devices[dev_id].binds + count;
	408	}
	409
	410	int in_get_dev_bind_count(int dev_id)
	411	{
	412	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
	413	return 0;
	414
	415	return in_bind_count(in_devices[dev_id].drv_id);
	416	}
	417
713c9224	418	const char *in_get_dev_name(int dev_id, int must_be_active, int skip_pfix)
819ef025	419	{
713c9224	420	const char name, tmp;
713c9224	421
819ef025	422	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
	423	return NULL;
	424
b6820926	425	if (must_be_active && !in_devices[dev_id].probed)
b6820926	426	return NULL;
713c9224	427
	428	name = in_devices[dev_id].name;
	429	tmp = strchr(name, ':');
	430	if (tmp != NULL)
	431	name = tmp + 1;
	432
	433	return name;
819ef025	434	}
819ef025	435
f484a9fe	436	/* never returns NULL */
3427e573	437	const char *in_get_key_name(int dev_id, int keycode)
3427e573	438	{
f484a9fe	439	static char xname[16];
	440	const char *name;
	441
3427e573	442	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
3427e573	443	return "Unkn0";
819ef025	444
f484a9fe	445	name = DRV(in_devices[dev_id].drv_id).get_key_name(keycode);
	446	if (name != NULL)
	447	return name;
	448
	449	/* assume scancode */
	450	if ((keycode >= '0' && keycode <= '9') \|\| (keycode >= 'a' && keycode <= 'z')
	451	\|\| (keycode >= 'A' && keycode <= 'Z'))
	452	sprintf(xname, "%c", keycode);
	453	else
	454	sprintf(xname, "\\x%02X", keycode);
	455	return xname;
	456	}
	457
	458	int in_bind_key(int dev_id, int keycode, int mask, int force_unbind)
	459	{
	460	int ret, count;
	461	in_dev_t *dev;
	462
	463	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
	464	return -1;
	465	dev = &in_devices[dev_id];
	466
	467	if (dev->binds == NULL) {
	468	if (force_unbind)
	469	return 0;
	470	dev->binds = in_alloc_binds(dev->drv_id);
	471	if (dev->binds == NULL)
	472	return -1;
	473	}
	474
	475	count = in_bind_count(dev->drv_id);
	476	if (keycode < 0 \|\| keycode >= count)
	477	return -1;
	478
	479	if (force_unbind)
	480	dev->binds[keycode] &= ~mask;
	481	else
	482	dev->binds[keycode] ^= mask;
	483
	484	ret = DRV(dev->drv_id).clean_binds(dev->drv_data, dev->binds);
	485	if (ret == 0) {
	486	free(dev->binds);
	487	dev->binds = NULL;
	488	}
	489
	490	return 0;
819ef025	491	}
	492
	493	/* returns device id, or -1 on error */
	494	int in_config_parse_dev(const char *name)
	495	{
	496	int drv_id = -1, i;
	497
	498	for (i = 0; i < IN_DRVID_COUNT; i++) {
	499	int len = strlen(in_drivers[i].prefix);
	500	if (strncmp(name, in_drivers[i].prefix, len) == 0) {
	501	drv_id = i;
	502	break;
	503	}
	504	}
	505
	506	if (drv_id < 0) {
	507	printf("input: missing driver for %s\n", name);
	508	return -1;
	509	}
	510
	511	for (i = 0; i < in_dev_count; i++)
	512	{
	513	if (in_devices[i].name == NULL)
	514	continue;
	515	if (strcmp(in_devices[i].name, name) == 0)
	516	return i;
	517	}
	518
	519	if (i >= IN_MAX_DEVS)
	520	{
	521	/* try to find unused device */
	522	for (i = 0; i < IN_MAX_DEVS; i++)
	523	if (in_devices[i].name == NULL) break;
	524	if (i >= IN_MAX_DEVS) {
	525	printf("input: too many devices, can't add %s\n", name);
	526	return -1;
	527	}
	528	}
	529
	530	memset(&in_devices[i], 0, sizeof(in_devices[i]));
	531
	532	in_devices[i].name = strdup(name);
	533	if (in_devices[i].name == NULL)
	534	return -1;
	535
	536	if (i + 1 > in_dev_count)
	537	in_dev_count = i + 1;
	538	in_devices[i].drv_id = drv_id;
	539
	540	return i;
	541	}
	542
299acadc	543	/*
	544	* To reduce size of game specific configs, default binds are not saved.
	545	* So we mark default binds in in_config_start(), override them in in_config_bind_key(),
	546	* and restore whatever default binds are left in in_config_end().
	547	*/
819ef025	548	void in_config_start(void)
	549	{
	550	int i;
	551
	552	/* mark all default binds, so they get overwritten by func below */
	553	for (i = 0; i < IN_MAX_DEVS; i++) {
	554	int n, count, binds, def_binds;
	555
f484a9fe	556	binds = in_devices[i].binds;
f484a9fe	557	if (binds == NULL)
819ef025	558	continue;
	559
	560	count = in_bind_count(in_devices[i].drv_id);
819ef025	561	def_binds = binds + count;
	562
	563	for (n = 0; n < count; n++)
	564	if (binds[n] == def_binds[n])
	565	binds[n] = -1;
	566	}
	567	}
	568
	569	int in_config_bind_key(int dev_id, const char *key, int binds)
	570	{
f484a9fe	571	int count, kc;
f484a9fe	572	in_dev_t *dev;
819ef025	573
	574	if (dev_id < 0 \|\| dev_id >= IN_MAX_DEVS)
	575	return -1;
f484a9fe	576	dev = &in_devices[dev_id];
819ef025	577
f484a9fe	578	count = in_bind_count(dev->drv_id);
	579
	580	/* maybe a raw code? */
	581	if (key[0] == '\\' && key[1] == 'x') {
	582	char *p = NULL;
	583	kc = (int)strtoul(key + 2, &p, 16);
	584	if (p == NULL \|\| *p != 0)
	585	kc = -1;
	586	}
	587	else {
	588	/* device specific key name */
	589	if (dev->binds == NULL) {
	590	dev->binds = in_alloc_binds(dev->drv_id);
	591	if (dev->binds == NULL)
	592	return -1;
	593	in_config_start();
	594	}
	595
	596	kc = DRV(dev->drv_id).get_key_code(key);
	597	if (kc < 0 && strlen(key) == 1) {
	598	/* assume scancode */
	599	kc = key[0];
	600	}
819ef025	601	}
819ef025	602
f484a9fe	603	if (kc < 0 \|\| kc >= count) {
819ef025	604	printf("input: bad key: %s\n", key);
819ef025	605	return -1;
3427e573	606	}
3427e573	607
f484a9fe	608	if (dev->binds[kc] == -1)
	609	dev->binds[kc] = 0;
	610	dev->binds[kc] \|= binds;
819ef025	611
	612	return 0;
	613	}
	614
	615	void in_config_end(void)
	616	{
	617	int i;
	618
	619	for (i = 0; i < IN_MAX_DEVS; i++) {
	620	int n, ret, count, binds, def_binds;
f484a9fe	621	in_dev_t *dev = &in_devices[i];
819ef025	622
f484a9fe	623	if (dev->binds == NULL)
819ef025	624	continue;
819ef025	625
f484a9fe	626	count = in_bind_count(dev->drv_id);
f484a9fe	627	binds = dev->binds;
819ef025	628	def_binds = binds + count;
	629
	630	for (n = 0; n < count; n++)
	631	if (binds[n] == -1)
	632	binds[n] = def_binds[n];
	633
f484a9fe	634	if (dev->drv_data == NULL)
819ef025	635	continue;
819ef025	636
f484a9fe	637	ret = DRV(dev->drv_id).clean_binds(dev->drv_data, binds);
819ef025	638	if (ret == 0) {
819ef025	639	/* no useable binds */
f484a9fe	640	free(dev->binds);
f484a9fe	641	dev->binds = NULL;
819ef025	642	}
819ef025	643	}
3427e573	644	}
3427e573	645
819ef025	646	void in_debug_dump(void)
	647	{
	648	int i;
	649
	650	printf("# drv probed binds name\n");
	651	for (i = 0; i < IN_MAX_DEVS; i++) {
	652	in_dev_t *d = &in_devices[i];
	653	if (!d->probed && d->name == NULL && d->binds == NULL)
	654	continue;
	655	printf("%d %3d %6c %5c %s\n", i, d->drv_id, d->probed ? 'y' : 'n',
	656	d->binds ? 'y' : 'n', d->name);
	657	}
	658	}
	659
	660	/* handlers for unknown/not_preset drivers */
	661
	662	static void in_def_probe(void) {}
	663	static void in_def_free(void *drv_data) {}
	664	static int in_def_get_bind_count(void) { return 0; }
	665	static void in_def_get_def_binds(int *binds) {}
	666	static int in_def_clean_binds(void drv_data, int binds) { return 0; }
	667	static void in_def_set_blocking(void *data, int y) {}
7201dc73	668	static int in_def_update_keycode(void drv_data, int is_down) { return 0; }
819ef025	669	static int in_def_menu_translate(int keycode) { return keycode; }
	670	static int in_def_get_key_code(const char *key_name) { return 0; }
	671	static const char *in_def_get_key_name(int keycode) { return NULL; }
	672
e1f99f2b	673	void in_init(void)
e1f99f2b	674	{
819ef025	675	int i;
	676
	677	memset(in_drivers, 0, sizeof(in_drivers));
e1f99f2b	678	memset(in_devices, 0, sizeof(in_devices));
e1f99f2b	679	in_dev_count = 0;
819ef025	680
	681	for (i = 0; i < IN_DRVID_COUNT; i++) {
	682	in_drivers[i].prefix = "none:";
	683	in_drivers[i].probe = in_def_probe;
	684	in_drivers[i].free = in_def_free;
	685	in_drivers[i].get_bind_count = in_def_get_bind_count;
	686	in_drivers[i].get_def_binds = in_def_get_def_binds;
	687	in_drivers[i].clean_binds = in_def_clean_binds;
	688	in_drivers[i].set_blocking = in_def_set_blocking;
7201dc73	689	in_drivers[i].update_keycode = in_def_update_keycode;
819ef025	690	in_drivers[i].menu_translate = in_def_menu_translate;
	691	in_drivers[i].get_key_code = in_def_get_key_code;
	692	in_drivers[i].get_key_name = in_def_get_key_name;
	693	}
	694
217d08bc	695	#ifdef IN_GP2X
	696	in_gp2x_init(&in_drivers[IN_DRVID_GP2X]);
	697	#endif
819ef025	698	#ifdef IN_EVDEV
	699	in_evdev_init(&in_drivers[IN_DRVID_EVDEV]);
	700	#endif
e1f99f2b	701	}
e1f99f2b	702
819ef025	703	#if 0
e1f99f2b	704	int main(void)
e1f99f2b	705	{
3b13ec65	706	int ret;
3b13ec65	707
e1f99f2b	708	in_init();
	709	in_probe();
	710
3427e573	711	in_set_blocking(1);
	712
	713	#if 1
	714	while (1) {
	715	int dev = 0, down;
	716	ret = in_update_keycode(&dev, &down);
	717	printf("#%i: %i %i (%s)\n", dev, down, ret, in_get_key_name(dev, ret));
	718	}
	719	#else
e1f99f2b	720	while (1) {
b6820926	721	ret = in_menu_wait_any();
3b13ec65	722	printf("%08x\n", ret);
e1f99f2b	723	}
3427e573	724	#endif
e1f99f2b	725
	726	return 0;
	727	}
819ef025	728	#endif