1d1ff1142a
Fixes several dozen cases like:
../hw/dmx/examples/ev.c: In function ‘main’:
../hw/dmx/examples/ev.c:147:29: warning: assignment discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
tmp = "X";
^
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
275 lines
9.2 KiB
C
275 lines
9.2 KiB
C
/*
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* Copyright 2002 Red Hat Inc., Durham, North Carolina.
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*
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation on the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* This is a simple test program that reads from /dev/input/event*,
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* decoding events into a human readable form.
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*/
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/*
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* Authors:
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* Rickard E. (Rik) Faith <faith@redhat.com>
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <time.h>
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#include <linux/input.h>
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struct input_event event;
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int
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main(int argc, char **argv)
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{
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char name[64]; /* RATS: Use ok, but could be better */
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char buf[256] = { 0, }; /* RATS: Use ok */
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unsigned char mask[EV_MAX / 8 + 1]; /* RATS: Use ok */
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int version;
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int fd = 0;
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int rc;
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int i, j;
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const char *tmp;
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#define test_bit(bit) (mask[(bit)/8] & (1 << ((bit)%8)))
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for (i = 0; i < 32; i++) {
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snprintf(name, sizeof(name), "/dev/input/event%d", i);
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if ((fd = open(name, O_RDONLY, 0)) >= 0) {
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ioctl(fd, EVIOCGVERSION, &version);
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ioctl(fd, EVIOCGNAME(sizeof(buf)), buf);
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ioctl(fd, EVIOCGBIT(0, sizeof(mask)), mask);
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printf("%s\n", name);
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printf(" evdev version: %d.%d.%d\n",
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version >> 16, (version >> 8) & 0xff, version & 0xff);
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printf(" name: %s\n", buf);
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printf(" features:");
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for (j = 0; j < EV_MAX; j++) {
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if (test_bit(j)) {
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const char *type = "unknown";
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switch (j) {
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case EV_KEY:
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type = "keys/buttons";
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break;
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case EV_REL:
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type = "relative";
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break;
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case EV_ABS:
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type = "absolute";
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break;
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case EV_MSC:
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type = "reserved";
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break;
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case EV_LED:
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type = "leds";
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break;
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case EV_SND:
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type = "sound";
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break;
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case EV_REP:
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type = "repeat";
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break;
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case EV_FF:
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type = "feedback";
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break;
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}
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printf(" %s", type);
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}
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}
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printf("\n");
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close(fd);
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}
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}
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if (argc > 1) {
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snprintf(name, sizeof(name), "/dev/input/event%d", atoi(argv[1]));
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if ((fd = open(name, O_RDWR, 0)) >= 0) {
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printf("%s: open, fd = %d\n", name, fd);
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for (i = 0; i < LED_MAX; i++) {
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event.time.tv_sec = time(0);
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event.time.tv_usec = 0;
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event.type = EV_LED;
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event.code = i;
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event.value = 0;
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write(fd, &event, sizeof(event));
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}
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while ((rc = read(fd, &event, sizeof(event))) > 0) {
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printf("%-24.24s.%06lu type 0x%04x; code 0x%04x;"
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" value 0x%08x; ",
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ctime(&event.time.tv_sec),
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event.time.tv_usec, event.type, event.code, event.value);
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switch (event.type) {
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case EV_KEY:
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if (event.code > BTN_MISC) {
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printf("Button %d %s",
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event.code & 0xff,
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event.value ? "press" : "release");
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}
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else {
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printf("Key %d (0x%x) %s",
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event.code & 0xff,
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event.code & 0xff,
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event.value ? "press" : "release");
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}
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break;
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case EV_REL:
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switch (event.code) {
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case REL_X:
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tmp = "X";
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break;
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case REL_Y:
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tmp = "Y";
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break;
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case REL_HWHEEL:
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tmp = "HWHEEL";
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break;
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case REL_DIAL:
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tmp = "DIAL";
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break;
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case REL_WHEEL:
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tmp = "WHEEL";
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break;
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case REL_MISC:
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tmp = "MISC";
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break;
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default:
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tmp = "UNKNOWN";
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break;
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}
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printf("Relative %s %d", tmp, event.value);
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break;
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case EV_ABS:
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switch (event.code) {
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case ABS_X:
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tmp = "X";
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break;
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case ABS_Y:
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tmp = "Y";
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break;
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case ABS_Z:
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tmp = "Z";
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break;
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case ABS_RX:
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tmp = "RX";
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break;
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case ABS_RY:
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tmp = "RY";
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break;
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case ABS_RZ:
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tmp = "RZ";
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break;
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case ABS_THROTTLE:
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tmp = "THROTTLE";
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break;
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case ABS_RUDDER:
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tmp = "RUDDER";
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break;
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case ABS_WHEEL:
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tmp = "WHEEL";
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break;
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case ABS_GAS:
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tmp = "GAS";
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break;
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case ABS_BRAKE:
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tmp = "BRAKE";
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break;
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case ABS_HAT0X:
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tmp = "HAT0X";
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break;
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case ABS_HAT0Y:
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tmp = "HAT0Y";
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break;
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case ABS_HAT1X:
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tmp = "HAT1X";
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break;
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case ABS_HAT1Y:
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tmp = "HAT1Y";
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break;
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case ABS_HAT2X:
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tmp = "HAT2X";
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break;
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case ABS_HAT2Y:
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tmp = "HAT2Y";
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break;
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case ABS_HAT3X:
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tmp = "HAT3X";
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break;
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case ABS_HAT3Y:
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tmp = "HAT3Y";
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break;
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case ABS_PRESSURE:
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tmp = "PRESSURE";
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break;
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case ABS_DISTANCE:
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tmp = "DISTANCE";
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break;
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case ABS_TILT_X:
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tmp = "TILT_X";
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break;
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case ABS_TILT_Y:
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tmp = "TILT_Y";
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break;
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case ABS_MISC:
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tmp = "MISC";
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break;
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default:
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tmp = "UNKNOWN";
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break;
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}
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printf("Absolute %s %d", tmp, event.value);
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break;
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case EV_MSC:
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printf("Misc");
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break;
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case EV_LED:
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printf("Led");
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break;
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case EV_SND:
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printf("Snd");
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break;
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case EV_REP:
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printf("Rep");
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break;
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case EV_FF:
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printf("FF");
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break;
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break;
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}
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printf("\n");
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}
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printf("rc = %d, (%s)\n", rc, strerror(errno));
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close(fd);
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}
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}
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return 0;
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}
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