[picodrive.git] / platform / linux / in_evdev.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <linux/input.h>
#include <errno.h>

#include "../common/input.h"
#include "in_evdev.h"

typedef struct {
	int fd;
	int *kbits;
	int abs_min_x;
	int abs_max_x;
	int abs_min_y;
	int abs_max_y;
	int abs_lzone;
	int abs_lastx;
	int abs_lasty;
	int kc_first;
	int kc_last;
} in_evdev_t;

#ifndef KEY_CNT
#define KEY_CNT (KEY_MAX + 1)
#endif

#define KEYBITS_BIT(x) (keybits[(x)/sizeof(keybits[0])/8] & \
	(1 << ((x) & (sizeof(keybits[0])*8-1))))

#define KEYBITS_BIT_SET(x) (keybits[(x)/sizeof(keybits[0])/8] |= \
	(1 << ((x) & (sizeof(keybits[0])*8-1))))

#define KEYBITS_BIT_CLEAR(x) (keybits[(x)/sizeof(keybits[0])/8] &= \
	~(1 << ((x) & (sizeof(keybits[0])*8-1))))

static const char * const in_evdev_prefix = "evdev:";
static const char * const in_evdev_keys[KEY_CNT] = {
	[0 ... KEY_MAX] = NULL,
	[KEY_RESERVED] = "Reserved",		[KEY_ESC] = "Esc",
	[KEY_1] = "1",				[KEY_2] = "2",
	[KEY_3] = "3",				[KEY_4] = "4",
	[KEY_5] = "5",				[KEY_6] = "6",
	[KEY_7] = "7",				[KEY_8] = "8",
	[KEY_9] = "9",				[KEY_0] = "0",
	[KEY_MINUS] = "Minus",			[KEY_EQUAL] = "Equal",
	[KEY_BACKSPACE] = "Backspace",		[KEY_TAB] = "Tab",
	[KEY_Q] = "Q",				[KEY_W] = "W",
	[KEY_E] = "E",				[KEY_R] = "R",
	[KEY_T] = "T",				[KEY_Y] = "Y",
	[KEY_U] = "U",				[KEY_I] = "I",
	[KEY_O] = "O",				[KEY_P] = "P",
	[KEY_LEFTBRACE] = "LeftBrace",		[KEY_RIGHTBRACE] = "RightBrace",
	[KEY_ENTER] = "Enter",			[KEY_LEFTCTRL] = "LeftControl",
	[KEY_A] = "A",				[KEY_S] = "S",
	[KEY_D] = "D",				[KEY_F] = "F",
	[KEY_G] = "G",				[KEY_H] = "H",
	[KEY_J] = "J",				[KEY_K] = "K",
	[KEY_L] = "L",				[KEY_SEMICOLON] = "Semicolon",
	[KEY_APOSTROPHE] = "Apostrophe",	[KEY_GRAVE] = "Grave",
	[KEY_LEFTSHIFT] = "LeftShift",		[KEY_BACKSLASH] = "BackSlash",
	[KEY_Z] = "Z",				[KEY_X] = "X",
	[KEY_C] = "C",				[KEY_V] = "V",
	[KEY_B] = "B",				[KEY_N] = "N",
	[KEY_M] = "M",				[KEY_COMMA] = "Comma",
	[KEY_DOT] = "Dot",			[KEY_SLASH] = "Slash",
	[KEY_RIGHTSHIFT] = "RightShift",	[KEY_KPASTERISK] = "KPAsterisk",
	[KEY_LEFTALT] = "LeftAlt",		[KEY_SPACE] = "Space",
	[KEY_CAPSLOCK] = "CapsLock",		[KEY_F1] = "F1",
	[KEY_F2] = "F2",			[KEY_F3] = "F3",
	[KEY_F4] = "F4",			[KEY_F5] = "F5",
	[KEY_F6] = "F6",			[KEY_F7] = "F7",
	[KEY_F8] = "F8",			[KEY_F9] = "F9",
	[KEY_F10] = "F10",			[KEY_NUMLOCK] = "NumLock",
	[KEY_SCROLLLOCK] = "ScrollLock",	[KEY_KP7] = "KP7",
	[KEY_KP8] = "KP8",			[KEY_KP9] = "KP9",
	[KEY_KPMINUS] = "KPMinus",		[KEY_KP4] = "KP4",
	[KEY_KP5] = "KP5",			[KEY_KP6] = "KP6",
	[KEY_KPPLUS] = "KPPlus",		[KEY_KP1] = "KP1",
	[KEY_KP2] = "KP2",			[KEY_KP3] = "KP3",
	[KEY_KP0] = "KP0",			[KEY_KPDOT] = "KPDot",
	[KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd",
	[KEY_F11] = "F11",			[KEY_F12] = "F12",
	[KEY_KPJPCOMMA] = "KPJpComma",		[KEY_KPENTER] = "KPEnter",
	[KEY_RIGHTCTRL] = "RightCtrl",		[KEY_KPSLASH] = "KPSlash",
	[KEY_SYSRQ] = "SysRq",			[KEY_RIGHTALT] = "RightAlt",
	[KEY_LINEFEED] = "LineFeed",		[KEY_HOME] = "Home",
	[KEY_UP] = "Up",			[KEY_PAGEUP] = "PageUp",
	[KEY_LEFT] = "Left",			[KEY_RIGHT] = "Right",
	[KEY_END] = "End",			[KEY_DOWN] = "Down",
	[KEY_PAGEDOWN] = "PageDown",		[KEY_INSERT] = "Insert",
	[KEY_DELETE] = "Delete",		[KEY_MACRO] = "Macro",
	[KEY_HELP] = "Help",			[KEY_MENU] = "Menu",
	[KEY_COFFEE] = "Coffee",		[KEY_DIRECTION] = "Direction",
	[BTN_0] = "Btn0",			[BTN_1] = "Btn1",
	[BTN_2] = "Btn2",			[BTN_3] = "Btn3",
	[BTN_4] = "Btn4",			[BTN_5] = "Btn5",
	[BTN_6] = "Btn6",			[BTN_7] = "Btn7",
	[BTN_8] = "Btn8",			[BTN_9] = "Btn9",
	[BTN_LEFT] = "LeftBtn",			[BTN_RIGHT] = "RightBtn",
	[BTN_MIDDLE] = "MiddleBtn",		[BTN_SIDE] = "SideBtn",
	[BTN_EXTRA] = "ExtraBtn",		[BTN_FORWARD] = "ForwardBtn",
	[BTN_BACK] = "BackBtn",			[BTN_TASK] = "TaskBtn",
	[BTN_TRIGGER] = "Trigger",		[BTN_THUMB] = "ThumbBtn",
	[BTN_THUMB2] = "ThumbBtn2",		[BTN_TOP] = "TopBtn",
	[BTN_TOP2] = "TopBtn2",			[BTN_PINKIE] = "PinkieBtn",
	[BTN_BASE] = "BaseBtn",			[BTN_BASE2] = "BaseBtn2",
	[BTN_BASE3] = "BaseBtn3",		[BTN_BASE4] = "BaseBtn4",
	[BTN_BASE5] = "BaseBtn5",		[BTN_BASE6] = "BaseBtn6",
	[BTN_DEAD] = "BtnDead",			[BTN_A] = "BtnA",
	[BTN_B] = "BtnB",			[BTN_C] = "BtnC",
	[BTN_X] = "BtnX",			[BTN_Y] = "BtnY",
	[BTN_Z] = "BtnZ",			[BTN_TL] = "BtnTL",
	[BTN_TR] = "BtnTR",			[BTN_TL2] = "BtnTL2",
	[BTN_TR2] = "BtnTR2",			[BTN_SELECT] = "BtnSelect",
	[BTN_START] = "BtnStart",		[BTN_MODE] = "BtnMode",
	[BTN_THUMBL] = "BtnThumbL",		[BTN_THUMBR] = "BtnThumbR",
	[BTN_TOUCH] = "Touch",			[BTN_STYLUS] = "Stylus",
	[BTN_STYLUS2] = "Stylus2",		[BTN_TOOL_DOUBLETAP] = "Tool Doubletap",
	[BTN_TOOL_TRIPLETAP] = "Tool Tripletap", [BTN_GEAR_DOWN] = "WheelBtn",
	[BTN_GEAR_UP] = "Gear up",		[KEY_OK] = "Ok",
};


static void in_evdev_probe(void)
{
	long keybits[KEY_CNT / sizeof(long) / 8];
	long absbits[(ABS_MAX+1) / sizeof(long) / 8];
	int i;

	// the kernel might support and return less keys then we know about,
	// so make sure the buffers are clear.
	memset(keybits, 0, sizeof(keybits));
	memset(absbits, 0, sizeof(absbits));

	for (i = 0;; i++)
	{
		int support = 0, count = 0;
		int u, ret, fd, kc_first, kc_last;
		in_evdev_t *dev;
		char name[64];

		snprintf(name, sizeof(name), "/dev/input/event%d", i);
		fd = open(name, O_RDONLY|O_NONBLOCK);
		if (fd == -1) {
			if (errno == EACCES)
				continue;	/* maybe we can access next one */
			break;
		}

		/* check supported events */
		ret = ioctl(fd, EVIOCGBIT(0, sizeof(support)), &support);
		if (ret == -1) {
			printf("in_evdev: ioctl failed on %s\n", name);
			goto skip;
		}

		if (!(support & (1 << EV_KEY)))
			goto skip;

		ret = ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
		if (ret == -1) {
			printf("in_evdev: ioctl failed on %s\n", name);
			goto skip;
		}

		/* check for interesting keys */
		kc_first = KEY_MAX;
		kc_last = 0;
		for (u = 0; u < KEY_CNT; u++) {
			if (KEYBITS_BIT(u)) {
				if (u < kc_first)
					kc_first = u;
				if (u > kc_last)
					kc_last = u;
				if (u != KEY_POWER && u != KEY_SLEEP && u != BTN_TOUCH)
					count++;
			}
		}

		if (count == 0)
			goto skip;

		dev = calloc(1, sizeof(*dev));
		if (dev == NULL)
			goto skip;

		ret = ioctl(fd, EVIOCGKEY(sizeof(keybits)), keybits);
		if (ret == -1) {
			printf("Warning: EVIOCGKEY not supported, will have to track state\n");
			dev->kbits = calloc(KEY_CNT, sizeof(int));
			if (dev->kbits == NULL) {
				free(dev);
				goto skip;
			}
		}

		/* check for abs too */
		if (support & (1 << EV_ABS)) {
			struct input_absinfo ainfo;
			int dist;
			ret = ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbits)), absbits);
			if (ret == -1)
				goto no_abs;
			if (absbits[0] & (1 << ABS_X)) {
				ret = ioctl(fd, EVIOCGABS(ABS_X), &ainfo);
				if (ret == -1)
					goto no_abs;
				dist = ainfo.maximum - ainfo.minimum;
				dev->abs_lzone = dist / 4;
				dev->abs_min_x = ainfo.minimum;
				dev->abs_max_x = ainfo.maximum;
			}
			if (absbits[0] & (1 << ABS_Y)) {
				ret = ioctl(fd, EVIOCGABS(ABS_Y), &ainfo);
				if (ret == -1)
					goto no_abs;
				dist = ainfo.maximum - ainfo.minimum;
				dev->abs_min_y = ainfo.minimum;
				dev->abs_max_y = ainfo.maximum;
			}
		}

no_abs:
		dev->fd = fd;
		dev->kc_first = kc_first;
		dev->kc_last = kc_last;
		strcpy(name, in_evdev_prefix);
		ioctl(fd, EVIOCGNAME(sizeof(name)-6), name+6);
		printf("in_evdev: found \"%s\" with %d events (type %08x)\n",
			name+6, count, support);
		in_register(name, IN_DRVID_EVDEV, fd, dev, KEY_CNT, in_evdev_keys, 0);
		continue;

skip:
		close(fd);
	}
}

static void in_evdev_free(void *drv_data)
{
	in_evdev_t *dev = drv_data;
	if (dev == NULL)
		return;
	close(dev->fd);
	free(dev);
}

static int in_evdev_get_bind_count(void)
{
	return KEY_CNT;
}

static void or_binds(const int *binds, int key, int *result)
{
	int t;
	for (t = 0; t < IN_BINDTYPE_COUNT; t++)
		result[t] |= binds[IN_BIND_OFFS(key, t)];
}

/* ORs result with binds of pressed buttons
 * XXX: should measure performance hit of this func, might need to optimize */
int in_evdev_update(void *drv_data, const int *binds, int *result)
{
	struct input_event ev[16];
	struct input_absinfo ainfo;
	int keybits_[KEY_CNT / sizeof(int)];
	int *keybits = keybits_;
	in_evdev_t *dev = drv_data;
	int rd, ret, u, lzone;

	if (dev->kbits == NULL) {
		ret = ioctl(dev->fd, EVIOCGKEY(sizeof(keybits_)), keybits_);
		if (ret == -1) {
			perror("in_evdev: ioctl failed");
			return -1;
		}
	}
	else {
		keybits = dev->kbits;
		while (1) {
			rd = read(dev->fd, ev, sizeof(ev));
			if (rd < (int)sizeof(ev[0])) {
				if (errno != EAGAIN)
					perror("in_evdev: read failed");
				break;
			}
			for (u = 0; u < rd / sizeof(ev[0]); u++) {
				if (ev[u].type != EV_KEY)
					continue;
				else if (ev[u].value == 1)
					KEYBITS_BIT_SET(ev[u].code);
				else if (ev[u].value == 0)
					KEYBITS_BIT_CLEAR(ev[u].code);
			}
		}
	}

	for (u = dev->kc_first; u <= dev->kc_last; u++) {
		if (KEYBITS_BIT(u))
			or_binds(binds, u, result);
	}

	/* map X and Y absolute to UDLR */
	lzone = dev->abs_lzone;
	if (lzone != 0) {
		ret = ioctl(dev->fd, EVIOCGABS(ABS_X), &ainfo);
		if (ret != -1) {
			if (ainfo.value < dev->abs_min_x + lzone) or_binds(binds, KEY_LEFT, result);
			if (ainfo.value > dev->abs_max_x - lzone) or_binds(binds, KEY_RIGHT, result);
		}
	}
	if (lzone != 0) {
		ret = ioctl(dev->fd, EVIOCGABS(ABS_Y), &ainfo);
		if (ret != -1) {
			if (ainfo.value < dev->abs_min_y + lzone) or_binds(binds, KEY_UP, result);
			if (ainfo.value > dev->abs_max_y - lzone) or_binds(binds, KEY_DOWN, result);
		}
	}

	return 0;
}

static int in_evdev_set_blocking(in_evdev_t *dev, int y)
{
	long flags;
	int ret;

	flags = (long)fcntl(dev->fd, F_GETFL);
	if ((int)flags == -1) {
		perror("in_evdev: F_GETFL fcntl failed");
		return -1;
	}

	if (flags & O_NONBLOCK) {
		/* flush the event queue */
		struct input_event ev;
		do {
			ret = read(dev->fd, &ev, sizeof(ev));
		}
		while (ret == sizeof(ev));
	}

	if (y)
		flags &= ~O_NONBLOCK;
	else
		flags |=  O_NONBLOCK;
	ret = fcntl(dev->fd, F_SETFL, flags);
	if (ret == -1) {
		perror("in_evdev: F_SETFL fcntl failed");
		return -1;
	}

	return 0;
}

static int in_evdev_set_config(void *drv_data, int what, int val)
{
	in_evdev_t *dev = drv_data;
	int tmp;

	switch (what) {
	case IN_CFG_BLOCKING:
		return in_evdev_set_blocking(dev, val);
	case IN_CFG_ABS_DEAD_ZONE:
		if (val < 1 || val > 99 || dev->abs_lzone == 0)
			return -1;
		/* XXX: based on X axis only, for now.. */
		tmp = (dev->abs_max_x - dev->abs_min_x) / 2;
		dev->abs_lzone = tmp - tmp * val / 100;
		if (dev->abs_lzone < 1)
			dev->abs_lzone = 1;
		else if (dev->abs_lzone >= tmp)
			dev->abs_lzone = tmp - 1;
		break;
	default:
		return -1;
	}

	return 0;
}

static int in_evdev_update_keycode(void *data, int *is_down)
{
	int ret_kc = -1, ret_down = 0;
	in_evdev_t *dev = data;
	struct input_event ev;
	int rd;

	while (1)
	{
		rd = read(dev->fd, &ev, sizeof(ev));
		if (rd < (int) sizeof(ev)) {
			if (errno != EAGAIN) {
				perror("in_evdev: error reading");
				sleep(1);
			}
			goto out;
		}

		if (ev.type == EV_KEY) {
			if (ev.value < 0 || ev.value > 1)
				continue;
			ret_kc = ev.code;
			ret_down = ev.value;
			goto out;
		}
		else if (ev.type == EV_ABS)
		{
			int lzone = dev->abs_lzone, down = 0, *last;

			// map absolute to up/down/left/right
			if (lzone != 0 && ev.code == ABS_X) {
				if (ev.value < dev->abs_min_x + lzone)
					down = KEY_LEFT;
				else if (ev.value > dev->abs_max_x - lzone)
					down = KEY_RIGHT;
				last = &dev->abs_lastx;
			}
			else if (lzone != 0 && ev.code == ABS_Y) {
				if (ev.value < dev->abs_min_y + lzone)
					down = KEY_UP;
				else if (ev.value > dev->abs_max_y - lzone)
					down = KEY_DOWN;
				last = &dev->abs_lasty;
			}
			else
				continue;

			if (down == *last)
				continue;

			if (down == 0 || *last != 0) {
				/* key up or direction change, return up event for old key */
				ret_kc = *last;
				ret_down = 0;
				*last = 0;
				goto out;
			}
			ret_kc = *last = down;
			ret_down = 1;
			goto out;
		}
	}

out:
	if (is_down != NULL)
		*is_down = ret_down;

	return ret_kc;
}

static const struct {
	short key;
	short pbtn;
} key_pbtn_map[] =
{
	{ KEY_UP,	PBTN_UP },
	{ KEY_DOWN,	PBTN_DOWN },
	{ KEY_LEFT,	PBTN_LEFT },
	{ KEY_RIGHT,	PBTN_RIGHT },
	/* XXX: maybe better set this from it's plat code somehow */
	/* Pandora */
	{ KEY_END,	PBTN_MOK },
	{ KEY_PAGEDOWN,	PBTN_MBACK },
	{ KEY_HOME,	PBTN_MA2 },
	{ KEY_PAGEUP,	PBTN_MA3 },
	{ KEY_LEFTCTRL,   PBTN_MENU },
	{ KEY_RIGHTSHIFT, PBTN_L },
	{ KEY_RIGHTCTRL,  PBTN_R },
	/* Caanoo */
	{ BTN_THUMB2,	PBTN_MOK },
	{ BTN_THUMB,	PBTN_MBACK },
	{ BTN_TRIGGER,	PBTN_MA2 },
	{ BTN_TOP,	PBTN_MA3 },
	{ BTN_BASE,	PBTN_MENU },
	{ BTN_TOP2,	PBTN_L },
	{ BTN_PINKIE,	PBTN_R },
	/* "normal" keyboards */
	{ KEY_ENTER,	PBTN_MOK },
	{ KEY_ESC,	PBTN_MBACK },
	{ KEY_A,	PBTN_MA2 },
	{ KEY_S,	PBTN_MA3 },
	{ KEY_BACKSLASH,  PBTN_MENU },
	{ KEY_LEFTBRACE,  PBTN_L },
	{ KEY_RIGHTBRACE, PBTN_R },
};

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

static int in_evdev_menu_translate(void *drv_data, int keycode)
{
	in_evdev_t *dev = drv_data;
	int i;

	if (keycode < 0)
	{
		/* menu -> kc */
		keycode = -keycode;
		for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
			if (key_pbtn_map[i].pbtn == keycode) {
				int k = key_pbtn_map[i].key;
				/* should really check EVIOCGBIT, but this is enough for now */
				if (dev->kc_first <= k && k <= dev->kc_last)
					return k;
			}
	}
	else
	{
		for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
			if (key_pbtn_map[i].key == keycode)
				return key_pbtn_map[i].pbtn;
	}

	return 0;
}

static const struct {
	short code;
	char btype;
	char bit;
} in_evdev_def_binds[] =
{
	/* MXYZ SACB RLDU */
	{ KEY_UP,	IN_BINDTYPE_PLAYER12, 0 },
	{ KEY_DOWN,	IN_BINDTYPE_PLAYER12, 1 },
	{ KEY_LEFT,	IN_BINDTYPE_PLAYER12, 2 },
	{ KEY_RIGHT,	IN_BINDTYPE_PLAYER12, 3 },
	{ KEY_S,	IN_BINDTYPE_PLAYER12, 4 },	/* B */
	{ KEY_D,	IN_BINDTYPE_PLAYER12, 5 },	/* C */
	{ KEY_A,	IN_BINDTYPE_PLAYER12, 6 },	/* A */
	{ KEY_ENTER,	IN_BINDTYPE_PLAYER12, 7 },
	{ KEY_BACKSLASH, IN_BINDTYPE_EMU, PEVB_MENU },
	/* Pandora */
	{ KEY_PAGEDOWN,	IN_BINDTYPE_PLAYER12, 4 },
	{ KEY_END,	IN_BINDTYPE_PLAYER12, 5 },
	{ KEY_HOME,	IN_BINDTYPE_PLAYER12, 6 },
	{ KEY_LEFTALT,	IN_BINDTYPE_PLAYER12, 7 },
	{ KEY_RIGHTSHIFT,IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
	{ KEY_RIGHTCTRL, IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
	{ KEY_LEFTCTRL,	 IN_BINDTYPE_EMU, PEVB_MENU },
	/* Caanoo */
	{ BTN_THUMB,	IN_BINDTYPE_PLAYER12, 4 },	/* B */
	{ BTN_THUMB2,	IN_BINDTYPE_PLAYER12, 5 },	/* C */
	{ BTN_TRIGGER,	IN_BINDTYPE_PLAYER12, 6 },	/* A */
	{ BTN_BASE3,	IN_BINDTYPE_PLAYER12, 7 },
	{ BTN_TOP2,	IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
	{ BTN_PINKIE,	IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
	{ BTN_BASE,	IN_BINDTYPE_EMU, PEVB_MENU },
};

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

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

	for (i = 0; i < DEF_BIND_COUNT; i++)
		binds[IN_BIND_OFFS(in_evdev_def_binds[i].code, in_evdev_def_binds[i].btype)] =
			1 << in_evdev_def_binds[i].bit;
}

/* remove binds of missing keys, count remaining ones */
static int in_evdev_clean_binds(void *drv_data, int *binds, int *def_binds)
{
	int keybits[KEY_CNT / sizeof(int)];
	in_evdev_t *dev = drv_data;
	int i, t, ret, offs, count = 0;

	ret = ioctl(dev->fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
	if (ret == -1) {
		perror("in_evdev: ioctl failed");
		memset(keybits, 0xff, sizeof(keybits)); /* mark all as good */
	}

	if (dev->abs_lzone != 0) {
		KEYBITS_BIT_SET(KEY_LEFT);
		KEYBITS_BIT_SET(KEY_RIGHT);
	}
	if (dev->abs_lzone != 0) {
		KEYBITS_BIT_SET(KEY_UP);
		KEYBITS_BIT_SET(KEY_DOWN);
	}

	for (i = 0; i < KEY_CNT; i++) {
		for (t = 0; t < IN_BINDTYPE_COUNT; t++) {
			offs = IN_BIND_OFFS(i, t);
			if (!KEYBITS_BIT(i))
				binds[offs] = def_binds[offs] = 0;
			if (binds[offs])
				count++;
		}
	}

	return count;
}

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

	drv->prefix = in_evdev_prefix;
	drv->probe = in_evdev_probe;
	drv->free = in_evdev_free;
	drv->get_bind_count = in_evdev_get_bind_count;
	drv->get_def_binds = in_evdev_get_def_binds;
	drv->clean_binds = in_evdev_clean_binds;
	drv->set_config = in_evdev_set_config;
	drv->update_keycode = in_evdev_update_keycode;
	drv->menu_translate = in_evdev_menu_translate;
}
Commit	Line	Data
4f96f79c	1	#include <stdio.h>
483230c7	2	#include <stdlib.h>
4f96f79c	3	#include <string.h>
	4	#include <sys/types.h>
	5	#include <sys/stat.h>
	6	#include <fcntl.h>
	7	#include <sys/ioctl.h>
	8	#include <unistd.h>
	9	#include <linux/input.h>
	10	#include <errno.h>
	11
e1f99f2b	12	#include "../common/input.h"
3b13ec65	13	#include "in_evdev.h"
4f96f79c	14
483230c7	15	typedef struct {
483230c7	16	int fd;
2843d00e	17	int *kbits;
603c28b3	18	int abs_min_x;
	19	int abs_max_x;
	20	int abs_min_y;
	21	int abs_max_y;
483230c7	22	int abs_lzone;
483230c7	23	int abs_lastx;
483230c7	24	int abs_lasty;
603c28b3	25	int kc_first;
603c28b3	26	int kc_last;
483230c7	27	} in_evdev_t;
483230c7	28
093b8a42	29	#ifndef KEY_CNT
	30	#define KEY_CNT (KEY_MAX + 1)
	31	#endif
	32
819ef025	33	#define KEYBITS_BIT(x) (keybits[(x)/sizeof(keybits[0])/8] & \
4f96f79c	34	(1 << ((x) & (sizeof(keybits[0])*8-1))))
4f96f79c	35
483230c7	36	#define KEYBITS_BIT_SET(x) (keybits[(x)/sizeof(keybits[0])/8] \|= \
	37	(1 << ((x) & (sizeof(keybits[0])*8-1))))
	38
2843d00e	39	#define KEYBITS_BIT_CLEAR(x) (keybits[(x)/sizeof(keybits[0])/8] &= \
	40	~(1 << ((x) & (sizeof(keybits[0])*8-1))))
	41
819ef025	42	static const char * const in_evdev_prefix = "evdev:";
093b8a42	43	static const char * const in_evdev_keys[KEY_CNT] = {
3427e573	44	[0 ... KEY_MAX] = NULL,
	45	[KEY_RESERVED] = "Reserved", [KEY_ESC] = "Esc",
	46	[KEY_1] = "1", [KEY_2] = "2",
	47	[KEY_3] = "3", [KEY_4] = "4",
	48	[KEY_5] = "5", [KEY_6] = "6",
	49	[KEY_7] = "7", [KEY_8] = "8",
	50	[KEY_9] = "9", [KEY_0] = "0",
	51	[KEY_MINUS] = "Minus", [KEY_EQUAL] = "Equal",
	52	[KEY_BACKSPACE] = "Backspace", [KEY_TAB] = "Tab",
	53	[KEY_Q] = "Q", [KEY_W] = "W",
	54	[KEY_E] = "E", [KEY_R] = "R",
	55	[KEY_T] = "T", [KEY_Y] = "Y",
	56	[KEY_U] = "U", [KEY_I] = "I",
	57	[KEY_O] = "O", [KEY_P] = "P",
	58	[KEY_LEFTBRACE] = "LeftBrace", [KEY_RIGHTBRACE] = "RightBrace",
	59	[KEY_ENTER] = "Enter", [KEY_LEFTCTRL] = "LeftControl",
	60	[KEY_A] = "A", [KEY_S] = "S",
	61	[KEY_D] = "D", [KEY_F] = "F",
	62	[KEY_G] = "G", [KEY_H] = "H",
	63	[KEY_J] = "J", [KEY_K] = "K",
	64	[KEY_L] = "L", [KEY_SEMICOLON] = "Semicolon",
	65	[KEY_APOSTROPHE] = "Apostrophe", [KEY_GRAVE] = "Grave",
	66	[KEY_LEFTSHIFT] = "LeftShift", [KEY_BACKSLASH] = "BackSlash",
	67	[KEY_Z] = "Z", [KEY_X] = "X",
	68	[KEY_C] = "C", [KEY_V] = "V",
	69	[KEY_B] = "B", [KEY_N] = "N",
	70	[KEY_M] = "M", [KEY_COMMA] = "Comma",
	71	[KEY_DOT] = "Dot", [KEY_SLASH] = "Slash",
	72	[KEY_RIGHTSHIFT] = "RightShift", [KEY_KPASTERISK] = "KPAsterisk",
	73	[KEY_LEFTALT] = "LeftAlt", [KEY_SPACE] = "Space",
	74	[KEY_CAPSLOCK] = "CapsLock", [KEY_F1] = "F1",
	75	[KEY_F2] = "F2", [KEY_F3] = "F3",
	76	[KEY_F4] = "F4", [KEY_F5] = "F5",
	77	[KEY_F6] = "F6", [KEY_F7] = "F7",
	78	[KEY_F8] = "F8", [KEY_F9] = "F9",
	79	[KEY_F10] = "F10", [KEY_NUMLOCK] = "NumLock",
	80	[KEY_SCROLLLOCK] = "ScrollLock", [KEY_KP7] = "KP7",
	81	[KEY_KP8] = "KP8", [KEY_KP9] = "KP9",
	82	[KEY_KPMINUS] = "KPMinus", [KEY_KP4] = "KP4",
	83	[KEY_KP5] = "KP5", [KEY_KP6] = "KP6",
	84	[KEY_KPPLUS] = "KPPlus", [KEY_KP1] = "KP1",
	85	[KEY_KP2] = "KP2", [KEY_KP3] = "KP3",
	86	[KEY_KP0] = "KP0", [KEY_KPDOT] = "KPDot",
	87	[KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd",
	88	[KEY_F11] = "F11", [KEY_F12] = "F12",
	89	[KEY_KPJPCOMMA] = "KPJpComma", [KEY_KPENTER] = "KPEnter",
	90	[KEY_RIGHTCTRL] = "RightCtrl", [KEY_KPSLASH] = "KPSlash",
	91	[KEY_SYSRQ] = "SysRq", [KEY_RIGHTALT] = "RightAlt",
	92	[KEY_LINEFEED] = "LineFeed", [KEY_HOME] = "Home",
	93	[KEY_UP] = "Up", [KEY_PAGEUP] = "PageUp",
	94	[KEY_LEFT] = "Left", [KEY_RIGHT] = "Right",
	95	[KEY_END] = "End", [KEY_DOWN] = "Down",
	96	[KEY_PAGEDOWN] = "PageDown", [KEY_INSERT] = "Insert",
	97	[KEY_DELETE] = "Delete", [KEY_MACRO] = "Macro",
	98	[KEY_HELP] = "Help", [KEY_MENU] = "Menu",
	99	[KEY_COFFEE] = "Coffee", [KEY_DIRECTION] = "Direction",
	100	[BTN_0] = "Btn0", [BTN_1] = "Btn1",
	101	[BTN_2] = "Btn2", [BTN_3] = "Btn3",
	102	[BTN_4] = "Btn4", [BTN_5] = "Btn5",
	103	[BTN_6] = "Btn6", [BTN_7] = "Btn7",
	104	[BTN_8] = "Btn8", [BTN_9] = "Btn9",
	105	[BTN_LEFT] = "LeftBtn", [BTN_RIGHT] = "RightBtn",
	106	[BTN_MIDDLE] = "MiddleBtn", [BTN_SIDE] = "SideBtn",
	107	[BTN_EXTRA] = "ExtraBtn", [BTN_FORWARD] = "ForwardBtn",
108	[BTN_BACK] = "BackBtn", [BTN_TASK] = "TaskBtn",
109	[BTN_TRIGGER] = "Trigger", [BTN_THUMB] = "ThumbBtn",
110	[BTN_THUMB2] = "ThumbBtn2", [BTN_TOP] = "TopBtn",
111	[BTN_TOP2] = "TopBtn2", [BTN_PINKIE] = "PinkieBtn",
112	[BTN_BASE] = "BaseBtn", [BTN_BASE2] = "BaseBtn2",
113	[BTN_BASE3] = "BaseBtn3", [BTN_BASE4] = "BaseBtn4",
114	[BTN_BASE5] = "BaseBtn5", [BTN_BASE6] = "BaseBtn6",
115	[BTN_DEAD] = "BtnDead", [BTN_A] = "BtnA",
116	[BTN_B] = "BtnB", [BTN_C] = "BtnC",
117	[BTN_X] = "BtnX", [BTN_Y] = "BtnY",
118	[BTN_Z] = "BtnZ", [BTN_TL] = "BtnTL",
119	[BTN_TR] = "BtnTR", [BTN_TL2] = "BtnTL2",
120	[BTN_TR2] = "BtnTR2", [BTN_SELECT] = "BtnSelect",
121	[BTN_START] = "BtnStart", [BTN_MODE] = "BtnMode",
122	[BTN_THUMBL] = "BtnThumbL", [BTN_THUMBR] = "BtnThumbR",
123	[BTN_TOUCH] = "Touch", [BTN_STYLUS] = "Stylus",
124	[BTN_STYLUS2] = "Stylus2", [BTN_TOOL_DOUBLETAP] = "Tool Doubletap",
125	[BTN_TOOL_TRIPLETAP] = "Tool Tripletap", [BTN_GEAR_DOWN] = "WheelBtn",
126	[BTN_GEAR_UP] = "Gear up", [KEY_OK] = "Ok",
127	};
128
129
819ef025	130	static void in_evdev_probe(void)
4f96f79c	131	{
b60b8745	132	long keybits[KEY_CNT / sizeof(long) / 8];
b60b8745	133	long absbits[(ABS_MAX+1) / sizeof(long) / 8];
4f96f79c	134	int i;
4f96f79c	135
b60b8745	136	// the kernel might support and return less keys then we know about,
	137	// so make sure the buffers are clear.
	138	memset(keybits, 0, sizeof(keybits));
	139	memset(absbits, 0, sizeof(absbits));
	140
e1f99f2b	141	for (i = 0;; i++)
4f96f79c	142	{
4f96f79c	143	int support = 0, count = 0;
603c28b3	144	int u, ret, fd, kc_first, kc_last;
483230c7	145	in_evdev_t *dev;
4f96f79c	146	char name[64];
	147
	148	snprintf(name, sizeof(name), "/dev/input/event%d", i);
683bbd55	149	fd = open(name, O_RDONLY\|O_NONBLOCK);
093b8a42	150	if (fd == -1) {
	151	if (errno == EACCES)
	152	continue; /* maybe we can access next one */
4f96f79c	153	break;
093b8a42	154	}
4f96f79c	155
	156	/* check supported events */
	157	ret = ioctl(fd, EVIOCGBIT(0, sizeof(support)), &support);
	158	if (ret == -1) {
e1f99f2b	159	printf("in_evdev: ioctl failed on %s\n", name);
4f96f79c	160	goto skip;
	161	}
	162
	163	if (!(support & (1 << EV_KEY)))
	164	goto skip;
	165
	166	ret = ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
	167	if (ret == -1) {
e1f99f2b	168	printf("in_evdev: ioctl failed on %s\n", name);
4f96f79c	169	goto skip;
	170	}
	171
4f96f79c	172	/* check for interesting keys */
603c28b3	173	kc_first = KEY_MAX;
603c28b3	174	kc_last = 0;
093b8a42	175	for (u = 0; u < KEY_CNT; u++) {
603c28b3	176	if (KEYBITS_BIT(u)) {
	177	if (u < kc_first)
	178	kc_first = u;
	179	if (u > kc_last)
	180	kc_last = u;
	181	if (u != KEY_POWER && u != KEY_SLEEP && u != BTN_TOUCH)
	182	count++;
	183	}
4f96f79c	184	}
	185
	186	if (count == 0)
	187	goto skip;
	188
483230c7	189	dev = calloc(1, sizeof(*dev));
	190	if (dev == NULL)
	191	goto skip;
	192
2843d00e	193	ret = ioctl(fd, EVIOCGKEY(sizeof(keybits)), keybits);
	194	if (ret == -1) {
	195	printf("Warning: EVIOCGKEY not supported, will have to track state\n");
	196	dev->kbits = calloc(KEY_CNT, sizeof(int));
	197	if (dev->kbits == NULL) {
	198	free(dev);
	199	goto skip;
	200	}
	201	}
	202
483230c7	203	/* check for abs too */
	204	if (support & (1 << EV_ABS)) {
	205	struct input_absinfo ainfo;
	206	int dist;
	207	ret = ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbits)), absbits);
	208	if (ret == -1)
	209	goto no_abs;
	210	if (absbits[0] & (1 << ABS_X)) {
	211	ret = ioctl(fd, EVIOCGABS(ABS_X), &ainfo);
	212	if (ret == -1)
	213	goto no_abs;
	214	dist = ainfo.maximum - ainfo.minimum;
603c28b3	215	dev->abs_lzone = dist / 4;
	216	dev->abs_min_x = ainfo.minimum;
	217	dev->abs_max_x = ainfo.maximum;
483230c7	218	}
	219	if (absbits[0] & (1 << ABS_Y)) {
	220	ret = ioctl(fd, EVIOCGABS(ABS_Y), &ainfo);
	221	if (ret == -1)
	222	goto no_abs;
	223	dist = ainfo.maximum - ainfo.minimum;
603c28b3	224	dev->abs_min_y = ainfo.minimum;
603c28b3	225	dev->abs_max_y = ainfo.maximum;
483230c7	226	}
	227	}
	228
	229	no_abs:
	230	dev->fd = fd;
603c28b3	231	dev->kc_first = kc_first;
603c28b3	232	dev->kc_last = kc_last;
819ef025	233	strcpy(name, in_evdev_prefix);
e1f99f2b	234	ioctl(fd, EVIOCGNAME(sizeof(name)-6), name+6);
	235	printf("in_evdev: found \"%s\" with %d events (type %08x)\n",
	236	name+6, count, support);
603c28b3	237	in_register(name, IN_DRVID_EVDEV, fd, dev, KEY_CNT, in_evdev_keys, 0);
4f96f79c	238	continue;
	239
	240	skip:
	241	close(fd);
	242	}
4f96f79c	243	}
4f96f79c	244
819ef025	245	static void in_evdev_free(void *drv_data)
e1f99f2b	246	{
483230c7	247	in_evdev_t *dev = drv_data;
	248	if (dev == NULL)
	249	return;
	250	close(dev->fd);
	251	free(dev);
e1f99f2b	252	}
e1f99f2b	253
819ef025	254	static int in_evdev_get_bind_count(void)
4f96f79c	255	{
093b8a42	256	return KEY_CNT;
4f96f79c	257	}
4f96f79c	258
093b8a42	259	static void or_binds(const int binds, int key, int result)
	260	{
	261	int t;
	262	for (t = 0; t < IN_BINDTYPE_COUNT; t++)
	263	result[t] \|= binds[IN_BIND_OFFS(key, t)];
	264	}
	265
	266	/* ORs result with binds of pressed buttons
	267	* XXX: should measure performance hit of this func, might need to optimize */
	268	int in_evdev_update(void drv_data, const int binds, int *result)
4f96f79c	269	{
4f96f79c	270	struct input_event ev[16];
483230c7	271	struct input_absinfo ainfo;
2843d00e	272	int keybits_[KEY_CNT / sizeof(int)];
2843d00e	273	int *keybits = keybits_;
483230c7	274	in_evdev_t *dev = drv_data;
603c28b3	275	int rd, ret, u, lzone;
4f96f79c	276
2843d00e	277	if (dev->kbits == NULL) {
370d5805	278	ret = ioctl(dev->fd, EVIOCGKEY(sizeof(keybits_)), keybits_);
2843d00e	279	if (ret == -1) {
	280	perror("in_evdev: ioctl failed");
	281	return -1;
4f96f79c	282	}
e1f99f2b	283	}
2843d00e	284	else {
	285	keybits = dev->kbits;
	286	while (1) {
	287	rd = read(dev->fd, ev, sizeof(ev));
	288	if (rd < (int)sizeof(ev[0])) {
	289	if (errno != EAGAIN)
	290	perror("in_evdev: read failed");
	291	break;
	292	}
	293	for (u = 0; u < rd / sizeof(ev[0]); u++) {
	294	if (ev[u].type != EV_KEY)
	295	continue;
	296	else if (ev[u].value == 1)
	297	KEYBITS_BIT_SET(ev[u].code);
	298	else if (ev[u].value == 0)
	299	KEYBITS_BIT_CLEAR(ev[u].code);
	300	}
	301	}
e1f99f2b	302	}
4f96f79c	303
603c28b3	304	for (u = dev->kc_first; u <= dev->kc_last; u++) {
093b8a42	305	if (KEYBITS_BIT(u))
093b8a42	306	or_binds(binds, u, result);
4f96f79c	307	}
4f96f79c	308
483230c7	309	/* map X and Y absolute to UDLR */
603c28b3	310	lzone = dev->abs_lzone;
603c28b3	311	if (lzone != 0) {
483230c7	312	ret = ioctl(dev->fd, EVIOCGABS(ABS_X), &ainfo);
483230c7	313	if (ret != -1) {
603c28b3	314	if (ainfo.value < dev->abs_min_x + lzone) or_binds(binds, KEY_LEFT, result);
603c28b3	315	if (ainfo.value > dev->abs_max_x - lzone) or_binds(binds, KEY_RIGHT, result);
483230c7	316	}
483230c7	317	}
603c28b3	318	if (lzone != 0) {
483230c7	319	ret = ioctl(dev->fd, EVIOCGABS(ABS_Y), &ainfo);
483230c7	320	if (ret != -1) {
603c28b3	321	if (ainfo.value < dev->abs_min_y + lzone) or_binds(binds, KEY_UP, result);
603c28b3	322	if (ainfo.value > dev->abs_max_y - lzone) or_binds(binds, KEY_DOWN, result);
483230c7	323	}
	324	}
	325
093b8a42	326	return 0;
4f96f79c	327	}
4f96f79c	328
603c28b3	329	static int in_evdev_set_blocking(in_evdev_t *dev, int y)
3b13ec65	330	{
3b13ec65	331	long flags;
3427e573	332	int ret;
3b13ec65	333
483230c7	334	flags = (long)fcntl(dev->fd, F_GETFL);
3427e573	335	if ((int)flags == -1) {
3427e573	336	perror("in_evdev: F_GETFL fcntl failed");
603c28b3	337	return -1;
3b13ec65	338	}
d8afe7b8	339
	340	if (flags & O_NONBLOCK) {
	341	/* flush the event queue */
	342	struct input_event ev;
	343	do {
	344	ret = read(dev->fd, &ev, sizeof(ev));
	345	}
	346	while (ret == sizeof(ev));
	347	}
	348
3427e573	349	if (y)
	350	flags &= ~O_NONBLOCK;
	351	else
	352	flags \|= O_NONBLOCK;
483230c7	353	ret = fcntl(dev->fd, F_SETFL, flags);
603c28b3	354	if (ret == -1) {
3427e573	355	perror("in_evdev: F_SETFL fcntl failed");
603c28b3	356	return -1;
	357	}
	358
	359	return 0;
	360	}
	361
	362	static int in_evdev_set_config(void *drv_data, int what, int val)
	363	{
	364	in_evdev_t *dev = drv_data;
	365	int tmp;
	366
	367	switch (what) {
	368	case IN_CFG_BLOCKING:
	369	return in_evdev_set_blocking(dev, val);
	370	case IN_CFG_ABS_DEAD_ZONE:
	371	if (val < 1 \|\| val > 99 \|\| dev->abs_lzone == 0)
	372	return -1;
	373	/* XXX: based on X axis only, for now.. */
	374	tmp = (dev->abs_max_x - dev->abs_min_x) / 2;
	375	dev->abs_lzone = tmp - tmp * val / 100;
	376	if (dev->abs_lzone < 1)
	377	dev->abs_lzone = 1;
	378	else if (dev->abs_lzone >= tmp)
	379	dev->abs_lzone = tmp - 1;
	380	break;
	381	default:
	382	return -1;
	383	}
	384
	385	return 0;
3427e573	386	}
3427e573	387
7201dc73	388	static int in_evdev_update_keycode(void data, int is_down)
3427e573	389	{
603c28b3	390	int ret_kc = -1, ret_down = 0;
7201dc73	391	in_evdev_t *dev = data;
	392	struct input_event ev;
	393	int rd;
f484a9fe	394
25915832	395	while (1)
7201dc73	396	{
25915832	397	rd = read(dev->fd, &ev, sizeof(ev));
	398	if (rd < (int) sizeof(ev)) {
	399	if (errno != EAGAIN) {
	400	perror("in_evdev: error reading");
	401	sleep(1);
	402	}
603c28b3	403	goto out;
25915832	404	}
603c28b3	405
25915832	406	if (ev.type == EV_KEY) {
	407	if (ev.value < 0 \|\| ev.value > 1)
	408	continue;
	409	ret_kc = ev.code;
	410	ret_down = ev.value;
603c28b3	411	goto out;
25915832	412	}
	413	else if (ev.type == EV_ABS)
	414	{
	415	int lzone = dev->abs_lzone, down = 0, *last;
	416
	417	// map absolute to up/down/left/right
	418	if (lzone != 0 && ev.code == ABS_X) {
	419	if (ev.value < dev->abs_min_x + lzone)
	420	down = KEY_LEFT;
	421	else if (ev.value > dev->abs_max_x - lzone)
	422	down = KEY_RIGHT;
	423	last = &dev->abs_lastx;
	424	}
	425	else if (lzone != 0 && ev.code == ABS_Y) {
	426	if (ev.value < dev->abs_min_y + lzone)
	427	down = KEY_UP;
	428	else if (ev.value > dev->abs_max_y - lzone)
	429	down = KEY_DOWN;
	430	last = &dev->abs_lasty;
	431	}
	432	else
	433	continue;
	434
	435	if (down == *last)
	436	continue;
	437
	438	if (down == 0 \|\| *last != 0) {
	439	/* key up or direction change, return up event for old key */
	440	ret_kc = *last;
	441	ret_down = 0;
	442	*last = 0;
	443	goto out;
	444	}
	445	ret_kc = *last = down;
	446	ret_down = 1;
603c28b3	447	goto out;
3b13ec65	448	}
3b13ec65	449	}
7201dc73	450
603c28b3	451	out:
	452	if (is_down != NULL)
	453	*is_down = ret_down;
	454
	455	return ret_kc;
3427e573	456	}
3b13ec65	457
991473ad	458	static const struct {
	459	short key;
	460	short pbtn;
	461	} key_pbtn_map[] =
	462	{
	463	{ KEY_UP, PBTN_UP },
	464	{ KEY_DOWN, PBTN_DOWN },
	465	{ KEY_LEFT, PBTN_LEFT },
	466	{ KEY_RIGHT, PBTN_RIGHT },
603c28b3	467	/* XXX: maybe better set this from it's plat code somehow */
603c28b3	468	/* Pandora */
be672de7	469	{ KEY_END, PBTN_MOK },
be672de7	470	{ KEY_PAGEDOWN, PBTN_MBACK },
be672de7	471	{ KEY_HOME, PBTN_MA2 },
be672de7	472	{ KEY_PAGEUP, PBTN_MA3 },
e708403e	473	{ KEY_LEFTCTRL, PBTN_MENU },
be672de7	474	{ KEY_RIGHTSHIFT, PBTN_L },
be672de7	475	{ KEY_RIGHTCTRL, PBTN_R },
603c28b3	476	/* Caanoo */
	477	{ BTN_THUMB2, PBTN_MOK },
	478	{ BTN_THUMB, PBTN_MBACK },
	479	{ BTN_TRIGGER, PBTN_MA2 },
	480	{ BTN_TOP, PBTN_MA3 },
	481	{ BTN_BASE, PBTN_MENU },
	482	{ BTN_TOP2, PBTN_L },
	483	{ BTN_PINKIE, PBTN_R },
	484	/* "normal" keyboards */
	485	{ KEY_ENTER, PBTN_MOK },
	486	{ KEY_ESC, PBTN_MBACK },
	487	{ KEY_A, PBTN_MA2 },
	488	{ KEY_S, PBTN_MA3 },
	489	{ KEY_BACKSLASH, PBTN_MENU },
	490	{ KEY_LEFTBRACE, PBTN_L },
991473ad	491	{ KEY_RIGHTBRACE, PBTN_R },
	492	};
	493
	494	#define KEY_PBTN_MAP_SIZE (sizeof(key_pbtn_map) / sizeof(key_pbtn_map[0]))
	495
603c28b3	496	static int in_evdev_menu_translate(void *drv_data, int keycode)
3427e573	497	{
603c28b3	498	in_evdev_t *dev = drv_data;
991473ad	499	int i;
603c28b3	500
991473ad	501	if (keycode < 0)
	502	{
	503	/* menu -> kc */
	504	keycode = -keycode;
	505	for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
603c28b3	506	if (key_pbtn_map[i].pbtn == keycode) {
	507	int k = key_pbtn_map[i].key;
	508	/* should really check EVIOCGBIT, but this is enough for now */
	509	if (dev->kc_first <= k && k <= dev->kc_last)
	510	return k;
	511	}
3b13ec65	512	}
991473ad	513	else
	514	{
	515	for (i = 0; i < KEY_PBTN_MAP_SIZE; i++)
	516	if (key_pbtn_map[i].key == keycode)
	517	return key_pbtn_map[i].pbtn;
	518	}
	519
	520	return 0;
3427e573	521	}
3b13ec65	522
819ef025	523	static const struct {
819ef025	524	short code;
093b8a42	525	char btype;
093b8a42	526	char bit;
819ef025	527	} in_evdev_def_binds[] =
	528	{
	529	/* MXYZ SACB RLDU */
093b8a42	530	{ KEY_UP, IN_BINDTYPE_PLAYER12, 0 },
	531	{ KEY_DOWN, IN_BINDTYPE_PLAYER12, 1 },
	532	{ KEY_LEFT, IN_BINDTYPE_PLAYER12, 2 },
	533	{ KEY_RIGHT, IN_BINDTYPE_PLAYER12, 3 },
	534	{ KEY_S, IN_BINDTYPE_PLAYER12, 4 }, /* B */
093b8a42	535	{ KEY_D, IN_BINDTYPE_PLAYER12, 5 }, /* C */
093b8a42	536	{ KEY_A, IN_BINDTYPE_PLAYER12, 6 }, /* A */
093b8a42	537	{ KEY_ENTER, IN_BINDTYPE_PLAYER12, 7 },
603c28b3	538	{ KEY_BACKSLASH, IN_BINDTYPE_EMU, PEVB_MENU },
	539	/* Pandora */
	540	{ KEY_PAGEDOWN, IN_BINDTYPE_PLAYER12, 4 },
	541	{ KEY_END, IN_BINDTYPE_PLAYER12, 5 },
	542	{ KEY_HOME, IN_BINDTYPE_PLAYER12, 6 },
e708403e	543	{ KEY_LEFTALT, IN_BINDTYPE_PLAYER12, 7 },
be672de7	544	{ KEY_RIGHTSHIFT,IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
	545	{ KEY_RIGHTCTRL, IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
	546	{ KEY_LEFTCTRL, IN_BINDTYPE_EMU, PEVB_MENU },
603c28b3	547	/* Caanoo */
	548	{ BTN_THUMB, IN_BINDTYPE_PLAYER12, 4 }, /* B */
	549	{ BTN_THUMB2, IN_BINDTYPE_PLAYER12, 5 }, /* C */
	550	{ BTN_TRIGGER, IN_BINDTYPE_PLAYER12, 6 }, /* A */
	551	{ BTN_BASE3, IN_BINDTYPE_PLAYER12, 7 },
	552	{ BTN_TOP2, IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
	553	{ BTN_PINKIE, IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
	554	{ BTN_BASE, IN_BINDTYPE_EMU, PEVB_MENU },
819ef025	555	};
	556
	557	#define DEF_BIND_COUNT (sizeof(in_evdev_def_binds) / sizeof(in_evdev_def_binds[0]))
	558
	559	static void in_evdev_get_def_binds(int *binds)
	560	{
	561	int i;
	562
	563	for (i = 0; i < DEF_BIND_COUNT; i++)
093b8a42	564	binds[IN_BIND_OFFS(in_evdev_def_binds[i].code, in_evdev_def_binds[i].btype)] =
093b8a42	565	1 << in_evdev_def_binds[i].bit;
819ef025	566	}
819ef025	567
483230c7	568	/* remove binds of missing keys, count remaining ones */
093b8a42	569	static int in_evdev_clean_binds(void drv_data, int binds, int *def_binds)
819ef025	570	{
093b8a42	571	int keybits[KEY_CNT / sizeof(int)];
483230c7	572	in_evdev_t *dev = drv_data;
093b8a42	573	int i, t, ret, offs, count = 0;
819ef025	574
483230c7	575	ret = ioctl(dev->fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
819ef025	576	if (ret == -1) {
	577	perror("in_evdev: ioctl failed");
	578	memset(keybits, 0xff, sizeof(keybits)); /* mark all as good */
	579	}
	580
483230c7	581	if (dev->abs_lzone != 0) {
	582	KEYBITS_BIT_SET(KEY_LEFT);
	583	KEYBITS_BIT_SET(KEY_RIGHT);
	584	}
603c28b3	585	if (dev->abs_lzone != 0) {
483230c7	586	KEYBITS_BIT_SET(KEY_UP);
	587	KEYBITS_BIT_SET(KEY_DOWN);
	588	}
	589
093b8a42	590	for (i = 0; i < KEY_CNT; i++) {
	591	for (t = 0; t < IN_BINDTYPE_COUNT; t++) {
	592	offs = IN_BIND_OFFS(i, t);
	593	if (!KEYBITS_BIT(i))
	594	binds[offs] = def_binds[offs] = 0;
	595	if (binds[offs])
	596	count++;
	597	}
819ef025	598	}
	599
	600	return count;
	601	}
	602
	603	void in_evdev_init(void *vdrv)
	604	{
	605	in_drv_t *drv = vdrv;
	606
	607	drv->prefix = in_evdev_prefix;
	608	drv->probe = in_evdev_probe;
	609	drv->free = in_evdev_free;
	610	drv->get_bind_count = in_evdev_get_bind_count;
	611	drv->get_def_binds = in_evdev_get_def_binds;
	612	drv->clean_binds = in_evdev_clean_binds;
603c28b3	613	drv->set_config = in_evdev_set_config;
7201dc73	614	drv->update_keycode = in_evdev_update_keycode;
819ef025	615	drv->menu_translate = in_evdev_menu_translate;
819ef025	616	}
819ef025	617