diff options
Diffstat (limited to 'xorg-server/hw/dmx/examples/ev.c')
| -rw-r--r-- | xorg-server/hw/dmx/examples/ev.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/xorg-server/hw/dmx/examples/ev.c b/xorg-server/hw/dmx/examples/ev.c new file mode 100644 index 000000000..ba45c2b25 --- /dev/null +++ b/xorg-server/hw/dmx/examples/ev.c @@ -0,0 +1,182 @@ +/* + * 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++) { + sprintf(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) { + sprintf(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; +} |