[libpicofe.git] / linux / in_evdev.c

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

#define KEYBITS_BIT(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_MAX + 1] = {
	[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)
{
	int i;

	for (i = 0;; i++)
	{
		int u, ret, fd, keybits[(KEY_MAX+1)/sizeof(int)];
		int support = 0, count = 0;
		char name[64];

		snprintf(name, sizeof(name), "/dev/input/event%d", i);
		fd = open(name, O_RDONLY|O_NONBLOCK);
		if (fd == -1)
			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 */
		for (u = 0; u < KEY_MAX + 1; u++) {
			if (KEYBITS_BIT(u) && u != KEY_POWER && u != KEY_SLEEP)
				count++;
		}

		if (count == 0)
			goto skip;

		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, (void *)fd);
		continue;

skip:
		close(fd);
	}
}

static void in_evdev_free(void *drv_data)
{
	close((int)drv_data);
}

static int in_evdev_get_bind_count(void)
{
	return KEY_MAX + 1;
}

/* returns bitfield of active binds or -1 if nothing
 * changed from previous time */
int in_evdev_update(void *drv_data, int *binds)
{
	struct input_event ev[16];
	int keybits[(KEY_MAX+1)/sizeof(int)];
	int fd = (int)drv_data;
	int result = 0, changed = 0;
	int rd, ret, u;

	while (1) {
		rd = read(fd, ev, sizeof(ev));
		if (rd < (int)sizeof(ev[0])) {
			if (errno != EAGAIN)
				perror("in_evdev: read failed");
			break;
		}

		changed = 1;
	}

	if (!changed)
		return -1;

	ret = ioctl(fd, EVIOCGKEY(sizeof(keybits)), keybits);
	if (ret == -1) {
		perror("in_evdev: ioctl failed");
		return 0;
	}

	for (u = 0; u < KEY_MAX + 1; u++) {
		if (KEYBITS_BIT(u)) {
			result |= binds[u];
		}
	}

	return result;
}

static void in_evdev_set_blocking(void *data, int y)
{
	long flags;
	int ret;

	flags = (long)fcntl((int)data, F_GETFL);
	if ((int)flags == -1) {
		perror("in_evdev: F_GETFL fcntl failed");
		return;
	}
	if (y)
		flags &= ~O_NONBLOCK;
	else
		flags |=  O_NONBLOCK;
	ret = fcntl((int)data, F_SETFL, flags);
	if (ret == -1)
		perror("in_evdev: F_SETFL fcntl failed");
}

int in_evdev_update_keycode(void **data, int dcount, int *which, int *is_down, int timeout_ms)
{
	const int *fds = (const int *)data;
	struct timeval tv, *timeout = NULL;
	int i, fdmax = -1;

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

	if (is_down != NULL)
		*is_down = 0;

	for (i = 0; i < dcount; i++)
		if (fds[i] > fdmax) fdmax = fds[i];

	while (1)
	{
		struct input_event ev[64];
		int ret, fd = -1, rd;
		fd_set fdset;

		FD_ZERO(&fdset);
		for (i = 0; i < dcount; i++)
			FD_SET(fds[i], &fdset);

		ret = select(fdmax + 1, &fdset, NULL, NULL, timeout);
		if (ret == -1)
		{
			perror("in_evdev: select failed");
			sleep(1);
			return 0;
		}

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

		for (i = 0; i < dcount; i++)
			if (FD_ISSET(fds[i], &fdset))
				*which = i, fd = fds[i];

		rd = read(fd, ev, sizeof(ev[0]) * 64);
		if (rd < (int) sizeof(ev[0])) {
			perror("in_evdev: error reading");
			sleep(1);
			return 0;
		}

		for (i = 0; i < rd / sizeof(ev[0]); i++)
		{
			if (ev[i].type != EV_KEY || ev[i].value < 0 || ev[i].value > 1)
				continue;

			if (is_down != NULL)
				*is_down = ev[i].value;
			return ev[i].code;
		}
	}
}

static int in_evdev_menu_translate(int keycode)
{
	switch (keycode) {
		/* keyboards */
		case KEY_UP:	return PBTN_UP;
		case KEY_DOWN:	return PBTN_DOWN;
		case KEY_LEFT:	return PBTN_LEFT;
		case KEY_RIGHT:	return PBTN_RIGHT;
		case KEY_ENTER:	return PBTN_EAST;
		case KEY_ESC:	return PBTN_SOUTH;
		default:	return 0;
	}
}

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

	for (i = 0; i < KEY_MAX + 1; i++) {
		const char *k = in_evdev_keys[i];
		if (k != NULL && k[0] == key_name[0] &&
				strcasecmp(k, key_name) == 0)
			return i;
	}

	return -1;
}

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

static const struct {
	short code;
	short bit;
} in_evdev_def_binds[] =
{
	/* MXYZ SACB RLDU */
	{ KEY_UP,	0 },
	{ KEY_DOWN,	1 },
	{ KEY_LEFT,	2 },
	{ KEY_RIGHT,	3 },
	{ KEY_S,	4 },	/* B */
	{ KEY_D,	5 },	/* C */
	{ KEY_A,	6 },	/* A */
	{ KEY_ENTER,	7 },
};

#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_evdev_def_binds[i].code] = 1 << in_evdev_def_binds[i].bit;
}

/* remove bad binds, count good ones */
static int in_evdev_clean_binds(void *drv_data, int *binds)
{
	int keybits[(KEY_MAX+1)/sizeof(int)];
	int i, ret, count = 0;

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

	for (i = 0; i < KEY_MAX + 1; i++) {
		if (!KEYBITS_BIT(i))
			binds[i] = binds[i + KEY_MAX + 1] = 0;
		if (binds[i])
			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_blocking = in_evdev_set_blocking;
	drv->menu_translate = in_evdev_menu_translate;
	drv->get_key_code = in_evdev_get_key_code;
	drv->get_key_name = in_evdev_get_key_name;
}
Commit	Line	Data
d92ea048	1	#include <stdio.h>
	2	#include <string.h>
	3	#include <sys/types.h>
	4	#include <sys/stat.h>
	5	#include <fcntl.h>
	6	#include <sys/ioctl.h>
	7	#include <unistd.h>
	8	#include <linux/input.h>
	9	#include <errno.h>
	10
34581c95	11	#include "../common/common.h"
2258f158	12	#include "../common/input.h"
34581c95	13	#include "in_evdev.h"
d92ea048	14
da767bd5	15	#define KEYBITS_BIT(x) (keybits[(x)/sizeof(keybits[0])/8] & \
d92ea048	16	(1 << ((x) & (sizeof(keybits[0])*8-1))))
d92ea048	17
da767bd5	18	static const char * const in_evdev_prefix = "evdev:";
da767bd5	19	static const char * const in_evdev_keys[KEY_MAX + 1] = {
595491c4	20	[0 ... KEY_MAX] = NULL,
	21	[KEY_RESERVED] = "Reserved", [KEY_ESC] = "Esc",
	22	[KEY_1] = "1", [KEY_2] = "2",
	23	[KEY_3] = "3", [KEY_4] = "4",
	24	[KEY_5] = "5", [KEY_6] = "6",
	25	[KEY_7] = "7", [KEY_8] = "8",
	26	[KEY_9] = "9", [KEY_0] = "0",
	27	[KEY_MINUS] = "Minus", [KEY_EQUAL] = "Equal",
	28	[KEY_BACKSPACE] = "Backspace", [KEY_TAB] = "Tab",
	29	[KEY_Q] = "Q", [KEY_W] = "W",
	30	[KEY_E] = "E", [KEY_R] = "R",
	31	[KEY_T] = "T", [KEY_Y] = "Y",
	32	[KEY_U] = "U", [KEY_I] = "I",
	33	[KEY_O] = "O", [KEY_P] = "P",
	34	[KEY_LEFTBRACE] = "LeftBrace", [KEY_RIGHTBRACE] = "RightBrace",
	35	[KEY_ENTER] = "Enter", [KEY_LEFTCTRL] = "LeftControl",
	36	[KEY_A] = "A", [KEY_S] = "S",
	37	[KEY_D] = "D", [KEY_F] = "F",
	38	[KEY_G] = "G", [KEY_H] = "H",
	39	[KEY_J] = "J", [KEY_K] = "K",
	40	[KEY_L] = "L", [KEY_SEMICOLON] = "Semicolon",
	41	[KEY_APOSTROPHE] = "Apostrophe", [KEY_GRAVE] = "Grave",
	42	[KEY_LEFTSHIFT] = "LeftShift", [KEY_BACKSLASH] = "BackSlash",
	43	[KEY_Z] = "Z", [KEY_X] = "X",
	44	[KEY_C] = "C", [KEY_V] = "V",
	45	[KEY_B] = "B", [KEY_N] = "N",
	46	[KEY_M] = "M", [KEY_COMMA] = "Comma",
	47	[KEY_DOT] = "Dot", [KEY_SLASH] = "Slash",
	48	[KEY_RIGHTSHIFT] = "RightShift", [KEY_KPASTERISK] = "KPAsterisk",
	49	[KEY_LEFTALT] = "LeftAlt", [KEY_SPACE] = "Space",
	50	[KEY_CAPSLOCK] = "CapsLock", [KEY_F1] = "F1",
	51	[KEY_F2] = "F2", [KEY_F3] = "F3",
	52	[KEY_F4] = "F4", [KEY_F5] = "F5",
	53	[KEY_F6] = "F6", [KEY_F7] = "F7",
	54	[KEY_F8] = "F8", [KEY_F9] = "F9",
	55	[KEY_F10] = "F10", [KEY_NUMLOCK] = "NumLock",
	56	[KEY_SCROLLLOCK] = "ScrollLock", [KEY_KP7] = "KP7",
	57	[KEY_KP8] = "KP8", [KEY_KP9] = "KP9",
	58	[KEY_KPMINUS] = "KPMinus", [KEY_KP4] = "KP4",
	59	[KEY_KP5] = "KP5", [KEY_KP6] = "KP6",
	60	[KEY_KPPLUS] = "KPPlus", [KEY_KP1] = "KP1",
	61	[KEY_KP2] = "KP2", [KEY_KP3] = "KP3",
	62	[KEY_KP0] = "KP0", [KEY_KPDOT] = "KPDot",
	63	[KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd",
	64	[KEY_F11] = "F11", [KEY_F12] = "F12",
	65	[KEY_KPJPCOMMA] = "KPJpComma", [KEY_KPENTER] = "KPEnter",
	66	[KEY_RIGHTCTRL] = "RightCtrl", [KEY_KPSLASH] = "KPSlash",
	67	[KEY_SYSRQ] = "SysRq", [KEY_RIGHTALT] = "RightAlt",
	68	[KEY_LINEFEED] = "LineFeed", [KEY_HOME] = "Home",
	69	[KEY_UP] = "Up", [KEY_PAGEUP] = "PageUp",
	70	[KEY_LEFT] = "Left", [KEY_RIGHT] = "Right",
	71	[KEY_END] = "End", [KEY_DOWN] = "Down",
	72	[KEY_PAGEDOWN] = "PageDown", [KEY_INSERT] = "Insert",
	73	[KEY_DELETE] = "Delete", [KEY_MACRO] = "Macro",
	74	[KEY_HELP] = "Help", [KEY_MENU] = "Menu",
	75	[KEY_COFFEE] = "Coffee", [KEY_DIRECTION] = "Direction",
	76	[BTN_0] = "Btn0", [BTN_1] = "Btn1",
	77	[BTN_2] = "Btn2", [BTN_3] = "Btn3",
	78	[BTN_4] = "Btn4", [BTN_5] = "Btn5",
	79	[BTN_6] = "Btn6", [BTN_7] = "Btn7",
	80	[BTN_8] = "Btn8", [BTN_9] = "Btn9",
	81	[BTN_LEFT] = "LeftBtn", [BTN_RIGHT] = "RightBtn",
	82	[BTN_MIDDLE] = "MiddleBtn", [BTN_SIDE] = "SideBtn",
	83	[BTN_EXTRA] = "ExtraBtn", [BTN_FORWARD] = "ForwardBtn",
84	[BTN_BACK] = "BackBtn", [BTN_TASK] = "TaskBtn",
85	[BTN_TRIGGER] = "Trigger", [BTN_THUMB] = "ThumbBtn",
86	[BTN_THUMB2] = "ThumbBtn2", [BTN_TOP] = "TopBtn",
87	[BTN_TOP2] = "TopBtn2", [BTN_PINKIE] = "PinkieBtn",
88	[BTN_BASE] = "BaseBtn", [BTN_BASE2] = "BaseBtn2",
89	[BTN_BASE3] = "BaseBtn3", [BTN_BASE4] = "BaseBtn4",
90	[BTN_BASE5] = "BaseBtn5", [BTN_BASE6] = "BaseBtn6",
91	[BTN_DEAD] = "BtnDead", [BTN_A] = "BtnA",
92	[BTN_B] = "BtnB", [BTN_C] = "BtnC",
93	[BTN_X] = "BtnX", [BTN_Y] = "BtnY",
94	[BTN_Z] = "BtnZ", [BTN_TL] = "BtnTL",
95	[BTN_TR] = "BtnTR", [BTN_TL2] = "BtnTL2",
96	[BTN_TR2] = "BtnTR2", [BTN_SELECT] = "BtnSelect",
97	[BTN_START] = "BtnStart", [BTN_MODE] = "BtnMode",
98	[BTN_THUMBL] = "BtnThumbL", [BTN_THUMBR] = "BtnThumbR",
99	[BTN_TOUCH] = "Touch", [BTN_STYLUS] = "Stylus",
100	[BTN_STYLUS2] = "Stylus2", [BTN_TOOL_DOUBLETAP] = "Tool Doubletap",
101	[BTN_TOOL_TRIPLETAP] = "Tool Tripletap", [BTN_GEAR_DOWN] = "WheelBtn",
102	[BTN_GEAR_UP] = "Gear up", [KEY_OK] = "Ok",
103	};
104
105
da767bd5	106	static void in_evdev_probe(void)
d92ea048	107	{
	108	int i;
	109
2258f158	110	for (i = 0;; i++)
d92ea048	111	{
da767bd5	112	int u, ret, fd, keybits[(KEY_MAX+1)/sizeof(int)];
d92ea048	113	int support = 0, count = 0;
	114	char name[64];
	115
	116	snprintf(name, sizeof(name), "/dev/input/event%d", i);
	117	fd = open(name, O_RDONLY\|O_NONBLOCK);
	118	if (fd == -1)
	119	break;
	120
	121	/* check supported events */
	122	ret = ioctl(fd, EVIOCGBIT(0, sizeof(support)), &support);
	123	if (ret == -1) {
2258f158	124	printf("in_evdev: ioctl failed on %s\n", name);
d92ea048	125	goto skip;
	126	}
	127
	128	if (!(support & (1 << EV_KEY)))
	129	goto skip;
	130
	131	ret = ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
	132	if (ret == -1) {
2258f158	133	printf("in_evdev: ioctl failed on %s\n", name);
d92ea048	134	goto skip;
	135	}
	136
d92ea048	137	/* check for interesting keys */
da767bd5	138	for (u = 0; u < KEY_MAX + 1; u++) {
da767bd5	139	if (KEYBITS_BIT(u) && u != KEY_POWER && u != KEY_SLEEP)
d92ea048	140	count++;
	141	}
	142
	143	if (count == 0)
	144	goto skip;
	145
da767bd5	146	strcpy(name, in_evdev_prefix);
2258f158	147	ioctl(fd, EVIOCGNAME(sizeof(name)-6), name+6);
	148	printf("in_evdev: found \"%s\" with %d events (type %08x)\n",
	149	name+6, count, support);
	150	in_register(name, IN_DRVID_EVDEV, (void *)fd);
d92ea048	151	continue;
	152
	153	skip:
	154	close(fd);
	155	}
d92ea048	156	}
d92ea048	157
da767bd5	158	static void in_evdev_free(void *drv_data)
2258f158	159	{
	160	close((int)drv_data);
	161	}
	162
da767bd5	163	static int in_evdev_get_bind_count(void)
d92ea048	164	{
da767bd5	165	return KEY_MAX + 1;
d92ea048	166	}
d92ea048	167
906bdc9f	168	/* returns bitfield of active binds or -1 if nothing
906bdc9f	169	* changed from previous time */
2258f158	170	int in_evdev_update(void drv_data, int binds)
d92ea048	171	{
d92ea048	172	struct input_event ev[16];
da767bd5	173	int keybits[(KEY_MAX+1)/sizeof(int)];
2258f158	174	int fd = (int)drv_data;
	175	int result = 0, changed = 0;
	176	int rd, ret, u;
d92ea048	177
2258f158	178	while (1) {
	179	rd = read(fd, ev, sizeof(ev));
	180	if (rd < (int)sizeof(ev[0])) {
	181	if (errno != EAGAIN)
	182	perror("in_evdev: read failed");
	183	break;
d92ea048	184	}
d92ea048	185
2258f158	186	changed = 1;
2258f158	187	}
d92ea048	188
2258f158	189	if (!changed)
906bdc9f	190	return -1;
906bdc9f	191
2258f158	192	ret = ioctl(fd, EVIOCGKEY(sizeof(keybits)), keybits);
	193	if (ret == -1) {
	194	perror("in_evdev: ioctl failed");
	195	return 0;
	196	}
d92ea048	197
da767bd5	198	for (u = 0; u < KEY_MAX + 1; u++) {
da767bd5	199	if (KEYBITS_BIT(u)) {
2258f158	200	result \|= binds[u];
d92ea048	201	}
d92ea048	202	}
	203
	204	return result;
	205	}
	206
da767bd5	207	static void in_evdev_set_blocking(void *data, int y)
34581c95	208	{
34581c95	209	long flags;
595491c4	210	int ret;
34581c95	211
595491c4	212	flags = (long)fcntl((int)data, F_GETFL);
	213	if ((int)flags == -1) {
	214	perror("in_evdev: F_GETFL fcntl failed");
	215	return;
34581c95	216	}
595491c4	217	if (y)
	218	flags &= ~O_NONBLOCK;
	219	else
	220	flags \|= O_NONBLOCK;
	221	ret = fcntl((int)data, F_SETFL, flags);
	222	if (ret == -1)
	223	perror("in_evdev: F_SETFL fcntl failed");
	224	}
	225
906bdc9f	226	int in_evdev_update_keycode(void *data, int dcount, int which, int *is_down, int timeout_ms)
595491c4	227	{
595491c4	228	const int fds = (const int )data;
906bdc9f	229	struct timeval tv, *timeout = NULL;
595491c4	230	int i, fdmax = -1;
595491c4	231
906bdc9f	232	if (timeout_ms > 0) {
	233	tv.tv_sec = timeout_ms / 1000;
	234	tv.tv_usec = (timeout_ms % 1000) * 1000;
	235	timeout = &tv;
	236	}
	237
	238	if (is_down != NULL)
	239	*is_down = 0;
	240
595491c4	241	for (i = 0; i < dcount; i++)
595491c4	242	if (fds[i] > fdmax) fdmax = fds[i];
34581c95	243
	244	while (1)
	245	{
	246	struct input_event ev[64];
595491c4	247	int ret, fd = -1, rd;
34581c95	248	fd_set fdset;
	249
	250	FD_ZERO(&fdset);
595491c4	251	for (i = 0; i < dcount; i++)
34581c95	252	FD_SET(fds[i], &fdset);
34581c95	253
906bdc9f	254	ret = select(fdmax + 1, &fdset, NULL, NULL, timeout);
34581c95	255	if (ret == -1)
	256	{
	257	perror("in_evdev: select failed");
	258	sleep(1);
	259	return 0;
	260	}
	261
906bdc9f	262	if (ret == 0)
	263	return 0; /* timeout */
	264
595491c4	265	for (i = 0; i < dcount; i++)
34581c95	266	if (FD_ISSET(fds[i], &fdset))
595491c4	267	*which = i, fd = fds[i];
34581c95	268
	269	rd = read(fd, ev, sizeof(ev[0]) * 64);
	270	if (rd < (int) sizeof(ev[0])) {
	271	perror("in_evdev: error reading");
	272	sleep(1);
	273	return 0;
	274	}
	275
34581c95	276	for (i = 0; i < rd / sizeof(ev[0]); i++)
	277	{
	278	if (ev[i].type != EV_KEY \|\| ev[i].value < 0 \|\| ev[i].value > 1)
	279	continue;
	280
906bdc9f	281	if (is_down != NULL)
595491c4	282	*is_down = ev[i].value;
595491c4	283	return ev[i].code;
34581c95	284	}
34581c95	285	}
595491c4	286	}
34581c95	287
da767bd5	288	static int in_evdev_menu_translate(int keycode)
595491c4	289	{
	290	switch (keycode) {
	291	/* keyboards */
	292	case KEY_UP: return PBTN_UP;
	293	case KEY_DOWN: return PBTN_DOWN;
	294	case KEY_LEFT: return PBTN_LEFT;
	295	case KEY_RIGHT: return PBTN_RIGHT;
	296	case KEY_ENTER: return PBTN_EAST;
	297	case KEY_ESC: return PBTN_SOUTH;
	298	default: return 0;
34581c95	299	}
595491c4	300	}
34581c95	301
da767bd5	302	static int in_evdev_get_key_code(const char *key_name)
	303	{
	304	int i;
	305
	306	for (i = 0; i < KEY_MAX + 1; i++) {
	307	const char *k = in_evdev_keys[i];
	308	if (k != NULL && k[0] == key_name[0] &&
	309	strcasecmp(k, key_name) == 0)
	310	return i;
	311	}
	312
	313	return -1;
	314	}
	315
	316	static const char *in_evdev_get_key_name(int keycode)
595491c4	317	{
595491c4	318	const char *name = NULL;
da767bd5	319	if (keycode >= 0 && keycode <= KEY_MAX)
595491c4	320	name = in_evdev_keys[keycode];
	321	if (name == NULL)
	322	name = "Unkn";
	323
	324	return name;
34581c95	325	}
34581c95	326
da767bd5	327	static const struct {
	328	short code;
	329	short bit;
	330	} in_evdev_def_binds[] =
	331	{
	332	/* MXYZ SACB RLDU */
	333	{ KEY_UP, 0 },
	334	{ KEY_DOWN, 1 },
	335	{ KEY_LEFT, 2 },
	336	{ KEY_RIGHT, 3 },
	337	{ KEY_S, 4 }, /* B */
	338	{ KEY_D, 5 }, /* C */
	339	{ KEY_A, 6 }, /* A */
	340	{ KEY_ENTER, 7 },
	341	};
	342
	343	#define DEF_BIND_COUNT (sizeof(in_evdev_def_binds) / sizeof(in_evdev_def_binds[0]))
	344
	345	static void in_evdev_get_def_binds(int *binds)
	346	{
	347	int i;
	348
	349	for (i = 0; i < DEF_BIND_COUNT; i++)
	350	binds[in_evdev_def_binds[i].code] = 1 << in_evdev_def_binds[i].bit;
	351	}
	352
	353	/* remove bad binds, count good ones */
	354	static int in_evdev_clean_binds(void drv_data, int binds)
	355	{
	356	int keybits[(KEY_MAX+1)/sizeof(int)];
	357	int i, ret, count = 0;
	358
	359	ret = ioctl((int)drv_data, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits);
	360	if (ret == -1) {
	361	perror("in_evdev: ioctl failed");
	362	memset(keybits, 0xff, sizeof(keybits)); /* mark all as good */
	363	}
	364
	365	for (i = 0; i < KEY_MAX + 1; i++) {
	366	if (!KEYBITS_BIT(i))
	367	binds[i] = binds[i + KEY_MAX + 1] = 0;
	368	if (binds[i])
	369	count++;
	370	}
	371
	372	return count;
	373	}
	374
	375	void in_evdev_init(void *vdrv)
	376	{
	377	in_drv_t *drv = vdrv;
	378
	379	drv->prefix = in_evdev_prefix;
	380	drv->probe = in_evdev_probe;
	381	drv->free = in_evdev_free;
	382	drv->get_bind_count = in_evdev_get_bind_count;
	383	drv->get_def_binds = in_evdev_get_def_binds;
	384	drv->clean_binds = in_evdev_clean_binds;
	385	drv->set_blocking = in_evdev_set_blocking;
	386	drv->menu_translate = in_evdev_menu_translate;
	387	drv->get_key_code = in_evdev_get_key_code;
	388	drv->get_key_name = in_evdev_get_key_name;
	389	}
	390