diff options
Diffstat (limited to 'plugins/linux/src/native/net_java_games_input_LinuxEventDevice.c')
| -rw-r--r-- | plugins/linux/src/native/net_java_games_input_LinuxEventDevice.c | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/plugins/linux/src/native/net_java_games_input_LinuxEventDevice.c b/plugins/linux/src/native/net_java_games_input_LinuxEventDevice.c new file mode 100644 index 0000000..90eff09 --- /dev/null +++ b/plugins/linux/src/native/net_java_games_input_LinuxEventDevice.c @@ -0,0 +1,257 @@ +/* + * %W% %E% + * + * Copyright 2002 Sun Microsystems, Inc. All rights reserved. + * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. + */ +/***************************************************************************** +* Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved. +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions are met: +* +* - Redistribution of source code must retain the above copyright notice, +* this list of conditions and the following disclaimer. +* +* - Redistribution in binary form must reproduce the above copyright notice, +* this list of conditions and the following disclaimer in the documentation +* and/or other materails provided with the distribution. +* +* Neither the name Sun Microsystems, Inc. or the names of the contributors +* may be used to endorse or promote products derived from this software +* without specific prior written permission. +* +* This software is provided "AS IS," without a warranty of any kind. +* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING +* ANY IMPLIED WARRANT OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR +* NON-INFRINGEMEN, ARE HEREBY EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND +* ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS +* A RESULT OF USING, MODIFYING OR DESTRIBUTING THIS SOFTWARE OR ITS +* DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST +* REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, +* INCIDENTAL OR PUNITIVE DAMAGES. HOWEVER CAUSED AND REGARDLESS OF THE THEORY +* OF LIABILITY, ARISING OUT OF THE USE OF OUR INABILITY TO USE THIS SOFTWARE, +* EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. +* +* You acknowledge that this software is not designed or intended for us in +* the design, construction, operation or maintenance of any nuclear facility +* +*****************************************************************************/ + +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/ioctl.h> +#include <linux/input.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> +#include "util.h" +#include "net_java_games_input_LinuxEventDevice.h" + +JNIEXPORT jlong JNICALL Java_net_java_games_input_LinuxEventDevice_nOpen(JNIEnv *env, jclass unused, jstring path, jboolean rw_flag) { + const char *path_str = (*env)->GetStringUTFChars(env, path, NULL); + if (path_str == NULL) + return -1; + int flags = rw_flag == JNI_TRUE ? O_RDWR : O_RDONLY; + flags = flags | O_NONBLOCK; + int fd = open(path_str, flags); + if (fd == -1) + throwIOException(env, "Failed to open device %s (%d)\n", path_str, errno); + (*env)->ReleaseStringUTFChars(env, path, path_str); + return fd; +} + +JNIEXPORT void JNICALL Java_net_java_games_input_LinuxEventDevice_nClose(JNIEnv *env, jclass unused, jlong fd_address) { + int fd = (int)fd_address; + int result = close(fd); + if (result == -1) + throwIOException(env, "Failed to close device (%d)\n", errno); +} + +JNIEXPORT jstring JNICALL Java_net_java_games_input_LinuxEventDevice_nGetName(JNIEnv *env, jclass unused, jlong fd_address) { +#define BUFFER_SIZE 1024 + int fd = (int)fd_address; + char device_name[BUFFER_SIZE]; + + if (ioctl(fd, EVIOCGNAME(BUFFER_SIZE), device_name) == -1) { + throwIOException(env, "Failed to get device name (%d)\n", errno); + return NULL; + } + jstring jstr = (*env)->NewStringUTF(env, device_name); + return jstr; +} + +JNIEXPORT void JNICALL Java_net_java_games_input_LinuxEventDevice_nGetKeyStates(JNIEnv *env, jclass unused, jlong fd_address, jbyteArray bits_array) { + int fd = (int)fd_address; + jsize len = (*env)->GetArrayLength(env, bits_array); + jbyte *bits = (*env)->GetByteArrayElements(env, bits_array, NULL); + if (bits == NULL) + return; + int res = ioctl(fd, EVIOCGKEY(len), bits); + (*env)->ReleaseByteArrayElements(env, bits_array, bits, 0); + if (res == -1) + throwIOException(env, "Failed to get device key states (%d)\n", errno); +} + +JNIEXPORT jint JNICALL Java_net_java_games_input_LinuxEventDevice_nGetVersion(JNIEnv *env, jclass unused, jlong fd_address) { + int fd = (int)fd_address; + int version; + if (ioctl(fd, EVIOCGVERSION, &version) == -1) { + throwIOException(env, "Failed to get device version (%d)\n", errno); + return -1; + } + return version; +} + +JNIEXPORT jint JNICALL Java_net_java_games_input_LinuxEventDevice_nGetNumEffects(JNIEnv *env, jclass unused, jlong fd_address) { + int fd = (int)fd_address; + int num_effects; + if (ioctl(fd, EVIOCGEFFECTS, &num_effects) == -1) { + throwIOException(env, "Failed to get number of device effects (%d)\n", errno); + return -1; + } + return num_effects; +} + +JNIEXPORT void JNICALL Java_net_java_games_input_LinuxEventDevice_nGetDeviceUsageBits(JNIEnv *env, jclass unused, jlong fd_address, jbyteArray usages_array) { +#if EV_VERSION >= 0x010001 + int fd = (int)fd_address; + jsize len = (*env)->GetArrayLength(env, usages_array); + jbyte *usages = (*env)->GetByteArrayElements(env, usages_array, NULL); + if (usages == NULL) + return; + int res = ioctl(fd, EVIOCGUSAGE(len), usages); + (*env)->ReleaseByteArrayElements(env, usages_array, usages, 0); + if (res == -1) + throwIOException(env, "Failed to get device usages (%d)\n", errno); +#endif +} + +JNIEXPORT void JNICALL Java_net_java_games_input_LinuxEventDevice_nGetBits(JNIEnv *env, jclass unused, jlong fd_address, jint evtype, jbyteArray bits_array) { + int fd = (int)fd_address; + jsize len = (*env)->GetArrayLength(env, bits_array); + jbyte *bits = (*env)->GetByteArrayElements(env, bits_array, NULL); + if (bits == NULL) + return; + int res = ioctl(fd, EVIOCGBIT(evtype, len), bits); + (*env)->ReleaseByteArrayElements(env, bits_array, bits, 0); + if (res == -1) + throwIOException(env, "Failed to get device bits (%d)\n", errno); +} + +JNIEXPORT jobject JNICALL Java_net_java_games_input_LinuxEventDevice_nGetInputID(JNIEnv *env, jclass unused, jlong fd_address) { + int fd = (int)fd_address; + jclass input_id_class = (*env)->FindClass(env, "net/java/games/input/LinuxInputID"); + if (input_id_class == NULL) + return NULL; + jmethodID input_id_constructor = (*env)->GetMethodID(env, input_id_class, "<init>", "(IIII)V"); + if (input_id_constructor == NULL) + return NULL; + struct input_id id; + int result = ioctl(fd, EVIOCGID, &id); + if (result == -1) { + throwIOException(env, "Failed to get input id for device (%d)\n", errno); + return NULL; + } + return (*env)->NewObject(env, input_id_class, input_id_constructor, (jint)id.bustype, (jint)id.vendor, (jint)id.product, (jint)id.version); +} + +JNIEXPORT void JNICALL Java_net_java_games_input_LinuxEventDevice_nGetAbsInfo(JNIEnv *env, jclass unused, jlong fd_address, jint abs_axis, jobject abs_info_return) { + int fd = (int)fd_address; + jclass abs_info_class = (*env)->GetObjectClass(env, abs_info_return); + if (abs_info_class == NULL) + return; + jmethodID abs_info_set = (*env)->GetMethodID(env, abs_info_class, "set", "(IIIII)V"); + if (abs_info_set == NULL) + return; + struct input_absinfo abs_info; + int result = ioctl(fd, EVIOCGABS(abs_axis), &abs_info); + if (result == -1) { + throwIOException(env, "Failed to get abs info for axis (%d)\n", errno); + return; + } + (*env)->CallVoidMethod(env, abs_info_return, abs_info_set, (jint)abs_info.value, (jint)abs_info.minimum, (jint)abs_info.maximum, (jint)abs_info.fuzz, (jint)abs_info.flat); +} + +JNIEXPORT jboolean JNICALL Java_net_java_games_input_LinuxEventDevice_nGetNextEvent(JNIEnv *env, jclass unused, jlong fd_address, jobject linux_event_return) { + int fd = (int)fd_address; + jclass linux_event_class = (*env)->GetObjectClass(env, linux_event_return); + if (linux_event_class == NULL) + return JNI_FALSE; + jmethodID linux_event_set = (*env)->GetMethodID(env, linux_event_class, "set", "(JJIII)V"); + if (linux_event_set == NULL) + return JNI_FALSE; + struct input_event event; + if (read(fd, &event, sizeof(struct input_event)) == -1) { + if (errno == EAGAIN) + return JNI_FALSE; + throwIOException(env, "Failed to read next device event (%d)\n", errno); + return JNI_FALSE; + } + (*env)->CallVoidMethod(env, linux_event_return, linux_event_set, (jlong)event.time.tv_sec, (jlong)event.time.tv_usec, (jint)event.type, (jint)event.code, (jint)event.value); + return JNI_TRUE; +} + +JNIEXPORT jint JNICALL Java_net_java_games_input_LinuxEventDevice_nUploadRumbleEffect(JNIEnv *env, jclass unused, jlong fd_address, jint id, jint direction, jint trigger_button, jint trigger_interval, jint replay_length, jint replay_delay, jint strong_magnitude, jint weak_magnitude) { + int fd = (int)fd_address; + struct ff_effect effect; + + effect.type = FF_RUMBLE; + effect.id = id; + effect.trigger.button = trigger_button; + effect.trigger.interval = trigger_interval; + effect.replay.length = replay_length; + effect.replay.delay = replay_delay; + effect.direction = direction; + effect.u.rumble.strong_magnitude = strong_magnitude; + effect.u.rumble.weak_magnitude = weak_magnitude; + + if (ioctl(fd, EVIOCSFF, &effect) == -1) { + throwIOException(env, "Failed to upload effect (%d)\n", errno); + return -1; + } + return effect.id; +} + +JNIEXPORT jint JNICALL Java_net_java_games_input_LinuxEventDevice_nUploadConstantEffect(JNIEnv *env, jclass unused, jlong fd_address, jint id, jint direction, jint trigger_button, jint trigger_interval, jint replay_length, jint replay_delay, jint constant_level, jint constant_env_attack_length, jint constant_env_attack_level, jint constant_env_fade_length, jint constant_env_fade_level) { + int fd = (int)fd_address; + struct ff_effect effect; + + effect.type = FF_CONSTANT; + effect.id = id; + effect.trigger.button = trigger_button; + effect.trigger.interval = trigger_interval; + effect.replay.length = replay_length; + effect.replay.delay = replay_delay; + effect.direction = direction; + effect.u.constant.level = constant_level; + effect.u.constant.envelope.attack_length = constant_env_attack_length; + effect.u.constant.envelope.attack_level = constant_env_attack_level; + effect.u.constant.envelope.fade_length = constant_env_fade_length; + effect.u.constant.envelope.fade_level = constant_env_fade_level; + + if (ioctl(fd, EVIOCSFF, &effect) == -1) { + throwIOException(env, "Failed to upload effect (%d)\n", errno); + return -1; + } + return effect.id; +} + +JNIEXPORT void JNICALL Java_net_java_games_input_LinuxEventDevice_nWriteEvent(JNIEnv *env, jclass unused, jlong fd_address, jint type, jint code, jint value) { + int fd = (int)fd_address; + struct input_event event; + event.type = type; + event.code = code; + event.value = value; + + if (write(fd, &event, sizeof(event)) == -1) { + throwIOException(env, "Failed to write to device (%d)\n", errno); + } +} + +JNIEXPORT void JNICALL Java_net_java_games_input_LinuxEventDevice_nEraseEffect(JNIEnv *env, jclass unused, jlong fd_address, jint ff_id) { + int fd = (int)fd_address; + int ff_id_int = ff_id; + + if (ioctl(fd, EVIOCRMFF, &ff_id_int) == -1) + throwIOException(env, "Failed to erase effect (%d)\n", errno); +} |