/* * %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 #include #include #include #include #include #include #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, "", "(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); }