[deb_xorg-server.git] / examples / ev.c

/*
 * Copyright 2002 Red Hat Inc., Durham, North Carolina.
 *
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation on the rights to use, copy, modify, merge,
 * publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial
 * portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NON-INFRINGEMENT.  IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * This is a simple test program that reads from /dev/input/event*,
 * decoding events into a human readable form.
 */

/*
 * Authors:
 *   Rickard E. (Rik) Faith <faith@redhat.com>
 *
 */

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

struct input_event event;

int
main(int argc, char **argv)
{
    char name[64];              /* RATS: Use ok, but could be better */
    char buf[256] = { 0, };     /* RATS: Use ok */
    unsigned char mask[EV_MAX / 8 + 1]; /* RATS: Use ok */
    int version;
    int fd = 0;
    int rc;
    int i, j;
    char *tmp;

#define test_bit(bit) (mask[(bit)/8] & (1 << ((bit)%8)))

    for (i = 0; i < 32; i++) {
        snprintf(name, sizeof(name), "/dev/input/event%d", i);
        if ((fd = open(name, O_RDONLY, 0)) >= 0) {
            ioctl(fd, EVIOCGVERSION, &version);
            ioctl(fd, EVIOCGNAME(sizeof(buf)), buf);
            ioctl(fd, EVIOCGBIT(0, sizeof(mask)), mask);
            printf("%s\n", name);
            printf("    evdev version: %d.%d.%d\n",
                   version >> 16, (version >> 8) & 0xff, version & 0xff);
            printf("    name: %s\n", buf);
            printf("    features:");
            for (j = 0; j < EV_MAX; j++) {
                if (test_bit(j)) {
                    const char *type = "unknown";

                    switch (j) {
                    case EV_KEY:
                        type = "keys/buttons";
                        break;
                    case EV_REL:
                        type = "relative";
                        break;
                    case EV_ABS:
                        type = "absolute";
                        break;
                    case EV_MSC:
                        type = "reserved";
                        break;
                    case EV_LED:
                        type = "leds";
                        break;
                    case EV_SND:
                        type = "sound";
                        break;
                    case EV_REP:
                        type = "repeat";
                        break;
                    case EV_FF:
                        type = "feedback";
                        break;
                    }
                    printf(" %s", type);
                }
            }
            printf("\n");
            close(fd);
        }
    }

    if (argc > 1) {
        snprintf(name, sizeof(name), "/dev/input/event%d", atoi(argv[1]));
        if ((fd = open(name, O_RDWR, 0)) >= 0) {
            printf("%s: open, fd = %d\n", name, fd);
            for (i = 0; i < LED_MAX; i++) {
                event.time.tv_sec = time(0);
                event.time.tv_usec = 0;
                event.type = EV_LED;
                event.code = i;
                event.value = 0;
                write(fd, &event, sizeof(event));
            }

            while ((rc = read(fd, &event, sizeof(event))) > 0) {
                printf("%-24.24s.%06lu type 0x%04x; code 0x%04x;"
                       " value 0x%08x; ",
                       ctime(&event.time.tv_sec),
                       event.time.tv_usec, event.type, event.code, event.value);
                switch (event.type) {
                case EV_KEY:
                    if (event.code > BTN_MISC) {
                        printf("Button %d %s",
                               event.code & 0xff,
                               event.value ? "press" : "release");
                    }
                    else {
                        printf("Key %d (0x%x) %s",
                               event.code & 0xff,
                               event.code & 0xff,
                               event.value ? "press" : "release");
                    }
                    break;
                case EV_REL:
                    switch (event.code) {
                    case REL_X:
                        tmp = "X";
                        break;
                    case REL_Y:
                        tmp = "Y";
                        break;
                    case REL_HWHEEL:
                        tmp = "HWHEEL";
                        break;
                    case REL_DIAL:
                        tmp = "DIAL";
                        break;
                    case REL_WHEEL:
                        tmp = "WHEEL";
                        break;
                    case REL_MISC:
                        tmp = "MISC";
                        break;
                    default:
                        tmp = "UNKNOWN";
                        break;
                    }
                    printf("Relative %s %d", tmp, event.value);
                    break;
                case EV_ABS:
                    switch (event.code) {
                    case ABS_X:
                        tmp = "X";
                        break;
                    case ABS_Y:
                        tmp = "Y";
                        break;
                    case ABS_Z:
                        tmp = "Z";
                        break;
                    case ABS_RX:
                        tmp = "RX";
                        break;
                    case ABS_RY:
                        tmp = "RY";
                        break;
                    case ABS_RZ:
                        tmp = "RZ";
                        break;
                    case ABS_THROTTLE:
                        tmp = "THROTTLE";
                        break;
                    case ABS_RUDDER:
                        tmp = "RUDDER";
                        break;
                    case ABS_WHEEL:
                        tmp = "WHEEL";
                        break;
                    case ABS_GAS:
                        tmp = "GAS";
                        break;
                    case ABS_BRAKE:
                        tmp = "BRAKE";
                        break;
                    case ABS_HAT0X:
                        tmp = "HAT0X";
                        break;
                    case ABS_HAT0Y:
                        tmp = "HAT0Y";
                        break;
                    case ABS_HAT1X:
                        tmp = "HAT1X";
                        break;
                    case ABS_HAT1Y:
                        tmp = "HAT1Y";
                        break;
                    case ABS_HAT2X:
                        tmp = "HAT2X";
                        break;
                    case ABS_HAT2Y:
                        tmp = "HAT2Y";
                        break;
                    case ABS_HAT3X:
                        tmp = "HAT3X";
                        break;
                    case ABS_HAT3Y:
                        tmp = "HAT3Y";
                        break;
                    case ABS_PRESSURE:
                        tmp = "PRESSURE";
                        break;
                    case ABS_DISTANCE:
                        tmp = "DISTANCE";
                        break;
                    case ABS_TILT_X:
                        tmp = "TILT_X";
                        break;
                    case ABS_TILT_Y:
                        tmp = "TILT_Y";
                        break;
                    case ABS_MISC:
                        tmp = "MISC";
                        break;
                    default:
                        tmp = "UNKNOWN";
                        break;
                    }
                    printf("Absolute %s %d", tmp, event.value);
                    break;
                case EV_MSC:
                    printf("Misc");
                    break;
                case EV_LED:
                    printf("Led");
                    break;
                case EV_SND:
                    printf("Snd");
                    break;
                case EV_REP:
                    printf("Rep");
                    break;
                case EV_FF:
                    printf("FF");
                    break;
                    break;
                }
                printf("\n");
            }
            printf("rc = %d, (%s)\n", rc, strerror(errno));
            close(fd);
        }
    }
    return 0;
}
Commit	Line	Data
	1	/*
	2	* Copyright 2002 Red Hat Inc., Durham, North Carolina.
	3	*
	4	* All Rights Reserved.
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining
	7	* a copy of this software and associated documentation files (the
	8	* "Software"), to deal in the Software without restriction, including
	9	* without limitation on the rights to use, copy, modify, merge,
	10	* publish, distribute, sublicense, and/or sell copies of the Software,
	11	* and to permit persons to whom the Software is furnished to do so,
	12	* subject to the following conditions:
	13	*
	14	* The above copyright notice and this permission notice (including the
	15	* next paragraph) shall be included in all copies or substantial
	16	* portions of the Software.
	17	*
	18	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	19	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	20	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	21	* NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
	22	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	23	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	24	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	25	* SOFTWARE.
	26	*
	27	* This is a simple test program that reads from /dev/input/event*,
	28	* decoding events into a human readable form.
	29	*/
	30
	31	/*
	32	* Authors:
	33	* Rickard E. (Rik) Faith <faith@redhat.com>
	34	*
	35	*/
	36
	37	#include <stdio.h>
	38	#include <stdlib.h>
	39	#include <unistd.h>
	40	#include <string.h>
	41	#include <sys/types.h>
	42	#include <fcntl.h>
	43	#include <errno.h>
	44	#include <time.h>
	45	#include <linux/input.h>
	46
	47	struct input_event event;
	48
	49	int
	50	main(int argc, char **argv)
	51	{
	52	char name[64]; /* RATS: Use ok, but could be better */
	53	char buf[256] = { 0, }; /* RATS: Use ok */
	54	unsigned char mask[EV_MAX / 8 + 1]; /* RATS: Use ok */
	55	int version;
	56	int fd = 0;
	57	int rc;
	58	int i, j;
	59	char *tmp;
	60
	61	#define test_bit(bit) (mask[(bit)/8] & (1 << ((bit)%8)))
	62
	63	for (i = 0; i < 32; i++) {
	64	snprintf(name, sizeof(name), "/dev/input/event%d", i);
	65	if ((fd = open(name, O_RDONLY, 0)) >= 0) {
	66	ioctl(fd, EVIOCGVERSION, &version);
	67	ioctl(fd, EVIOCGNAME(sizeof(buf)), buf);
	68	ioctl(fd, EVIOCGBIT(0, sizeof(mask)), mask);
	69	printf("%s\n", name);
	70	printf(" evdev version: %d.%d.%d\n",
	71	version >> 16, (version >> 8) & 0xff, version & 0xff);
	72	printf(" name: %s\n", buf);
	73	printf(" features:");
	74	for (j = 0; j < EV_MAX; j++) {
	75	if (test_bit(j)) {
	76	const char *type = "unknown";
	77
	78	switch (j) {
	79	case EV_KEY:
	80	type = "keys/buttons";
	81	break;
	82	case EV_REL:
	83	type = "relative";
	84	break;
	85	case EV_ABS:
	86	type = "absolute";
	87	break;
	88	case EV_MSC:
	89	type = "reserved";
	90	break;
	91	case EV_LED:
	92	type = "leds";
	93	break;
	94	case EV_SND:
	95	type = "sound";
	96	break;
	97	case EV_REP:
	98	type = "repeat";
	99	break;
	100	case EV_FF:
	101	type = "feedback";
	102	break;
	103	}
	104	printf(" %s", type);
	105	}
	106	}
	107	printf("\n");
	108	close(fd);
	109	}
	110	}
	111
	112	if (argc > 1) {
	113	snprintf(name, sizeof(name), "/dev/input/event%d", atoi(argv[1]));
	114	if ((fd = open(name, O_RDWR, 0)) >= 0) {
	115	printf("%s: open, fd = %d\n", name, fd);
	116	for (i = 0; i < LED_MAX; i++) {
	117	event.time.tv_sec = time(0);
	118	event.time.tv_usec = 0;
	119	event.type = EV_LED;
	120	event.code = i;
	121	event.value = 0;
	122	write(fd, &event, sizeof(event));
	123	}
	124
	125	while ((rc = read(fd, &event, sizeof(event))) > 0) {
	126	printf("%-24.24s.%06lu type 0x%04x; code 0x%04x;"
	127	" value 0x%08x; ",
	128	ctime(&event.time.tv_sec),
	129	event.time.tv_usec, event.type, event.code, event.value);
	130	switch (event.type) {
	131	case EV_KEY:
	132	if (event.code > BTN_MISC) {
	133	printf("Button %d %s",
	134	event.code & 0xff,
	135	event.value ? "press" : "release");
	136	}
	137	else {
	138	printf("Key %d (0x%x) %s",
	139	event.code & 0xff,
	140	event.code & 0xff,
	141	event.value ? "press" : "release");
	142	}
	143	break;
	144	case EV_REL:
	145	switch (event.code) {
	146	case REL_X:
	147	tmp = "X";
	148	break;
	149	case REL_Y:
	150	tmp = "Y";
	151	break;
	152	case REL_HWHEEL:
	153	tmp = "HWHEEL";
	154	break;
	155	case REL_DIAL:
	156	tmp = "DIAL";
	157	break;
	158	case REL_WHEEL:
	159	tmp = "WHEEL";
	160	break;
	161	case REL_MISC:
	162	tmp = "MISC";
	163	break;
	164	default:
	165	tmp = "UNKNOWN";
	166	break;
	167	}
	168	printf("Relative %s %d", tmp, event.value);
	169	break;
	170	case EV_ABS:
	171	switch (event.code) {
	172	case ABS_X:
	173	tmp = "X";
	174	break;
	175	case ABS_Y:
	176	tmp = "Y";
	177	break;
	178	case ABS_Z:
	179	tmp = "Z";
	180	break;
	181	case ABS_RX:
	182	tmp = "RX";
	183	break;
	184	case ABS_RY:
	185	tmp = "RY";
	186	break;
	187	case ABS_RZ:
	188	tmp = "RZ";
	189	break;
	190	case ABS_THROTTLE:
	191	tmp = "THROTTLE";
	192	break;
	193	case ABS_RUDDER:
	194	tmp = "RUDDER";
	195	break;
	196	case ABS_WHEEL:
	197	tmp = "WHEEL";
	198	break;
	199	case ABS_GAS:
	200	tmp = "GAS";
	201	break;
	202	case ABS_BRAKE:
	203	tmp = "BRAKE";
	204	break;
	205	case ABS_HAT0X:
	206	tmp = "HAT0X";
	207	break;
	208	case ABS_HAT0Y:
	209	tmp = "HAT0Y";
	210	break;
	211	case ABS_HAT1X:
	212	tmp = "HAT1X";
	213	break;
	214	case ABS_HAT1Y:
	215	tmp = "HAT1Y";
	216	break;
	217	case ABS_HAT2X:
	218	tmp = "HAT2X";
	219	break;
	220	case ABS_HAT2Y:
	221	tmp = "HAT2Y";
	222	break;
	223	case ABS_HAT3X:
	224	tmp = "HAT3X";
	225	break;
	226	case ABS_HAT3Y:
	227	tmp = "HAT3Y";
	228	break;
	229	case ABS_PRESSURE:
	230	tmp = "PRESSURE";
	231	break;
	232	case ABS_DISTANCE:
	233	tmp = "DISTANCE";
	234	break;
	235	case ABS_TILT_X:
	236	tmp = "TILT_X";
	237	break;
	238	case ABS_TILT_Y:
	239	tmp = "TILT_Y";
	240	break;
	241	case ABS_MISC:
	242	tmp = "MISC";
	243	break;
	244	default:
	245	tmp = "UNKNOWN";
	246	break;
	247	}
	248	printf("Absolute %s %d", tmp, event.value);
	249	break;
	250	case EV_MSC:
	251	printf("Misc");
	252	break;
	253	case EV_LED:
	254	printf("Led");
	255	break;
	256	case EV_SND:
	257	printf("Snd");
	258	break;
	259	case EV_REP:
	260	printf("Rep");
	261	break;
	262	case EV_FF:
	263	printf("FF");
	264	break;
	265	break;
	266	}
	267	printf("\n");
	268	}
	269	printf("rc = %d, (%s)\n", rc, strerror(errno));
	270	close(fd);
	271	}
	272	}
	273	return 0;
	274	}