update OpenHarmony 2.0 Canary

libevdev/Makefile.am

@@ -0,0 +1,42 @@
+lib_LTLIBRARIES=libevdev.la
+
+AM_CPPFLAGS = $(GCC_CFLAGS) $(GCOV_CFLAGS) -I$(top_srcdir)/include -I$(top_srcdir)
+AM_LDFLAGS = $(GCOV_LDFLAGS)
+
+libevdev_la_SOURCES = \
+                   libevdev.h \
+                   libevdev-int.h \
+                   libevdev-util.h \
+                   libevdev-uinput.c \
+                   libevdev-uinput.h \
+                   libevdev-uinput-int.h \
+                   libevdev.c \
+                   libevdev-names.c \
+		   ../include/linux/input.h \
+		   ../include/linux/uinput.h \
+		   ../include/linux/@OS@/input-event-codes.h \
+		   ../include/linux/@OS@/input.h \
+		   ../include/linux/@OS@/uinput.h
+
+libevdev_la_LDFLAGS = \
+        $(AM_LDFLAGS) \
+	-version-info $(LIBEVDEV_LT_VERSION) \
+	-Wl,--version-script="$(srcdir)/libevdev.sym" \
+	$(GNU_LD_FLAGS)
+
+EXTRA_libevdev_la_DEPENDENCIES = $(srcdir)/libevdev.sym
+
+libevdevincludedir = $(includedir)/libevdev-1.0/libevdev
+libevdevinclude_HEADERS = libevdev.h libevdev-uinput.h
+
+event-names.h: Makefile make-event-names.py
+	$(PYTHON) $(srcdir)/make-event-names.py $(top_srcdir)/include/linux/@OS@/input.h $(top_srcdir)/include/linux/@OS@/input-event-codes.h  > $@
+
+
+EXTRA_DIST = make-event-names.py libevdev.sym
+CLEANFILES = event-names.h
+BUILT_SOURCES = event-names.h
+
+if GCOV_ENABLED
+CLEANFILES += *.gcno
+endif

libevdev/Makefile.in

@@ -0,0 +1,749 @@
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+
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+# with or without modifications, as long as this notice is preserved.
+
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+                   libevdev.h \
+                   libevdev-int.h \
+                   libevdev-util.h \
+                   libevdev-uinput.c \
+                   libevdev-uinput.h \
+                   libevdev-uinput-int.h \
+                   libevdev.c \
+                   libevdev-names.c \
+		   ../include/linux/input.h \
+		   ../include/linux/uinput.h \
+		   ../include/linux/@OS@/input-event-codes.h \
+		   ../include/linux/@OS@/input.h \
+		   ../include/linux/@OS@/uinput.h
+
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+        $(AM_LDFLAGS) \
+	-version-info $(LIBEVDEV_LT_VERSION) \
+	-Wl,--version-script="$(srcdir)/libevdev.sym" \
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+
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+
+.c.o:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ $<
+
+.c.obj:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.c.lo:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCC_TRUE@	$(LTCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LTCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+install-libevdevincludeHEADERS: $(libevdevinclude_HEADERS)
+	@$(NORMAL_INSTALL)
+	@list='$(libevdevinclude_HEADERS)'; test -n "$(libevdevincludedir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(libevdevincludedir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(libevdevincludedir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_HEADER) $$files '$(DESTDIR)$(libevdevincludedir)'"; \
+	  $(INSTALL_HEADER) $$files "$(DESTDIR)$(libevdevincludedir)" || exit $$?; \
+	done
+
+uninstall-libevdevincludeHEADERS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(libevdevinclude_HEADERS)'; test -n "$(libevdevincludedir)" || list=; \
+	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
+	dir='$(DESTDIR)$(libevdevincludedir)'; $(am__uninstall_files_from_dir)
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) check-am
+all-am: Makefile $(LTLIBRARIES) $(HEADERS)
+installdirs:
+	for dir in "$(DESTDIR)$(libdir)" "$(DESTDIR)$(libevdevincludedir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+	-test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
+clean: clean-am
+
+clean-am: clean-generic clean-libLTLIBRARIES clean-libtool \
+	mostlyclean-am
+
+distclean: distclean-am
+		-rm -f ./$(DEPDIR)/libevdev-names.Plo
+	-rm -f ./$(DEPDIR)/libevdev-uinput.Plo
+	-rm -f ./$(DEPDIR)/libevdev.Plo
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-libevdevincludeHEADERS
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-libLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+		-rm -f ./$(DEPDIR)/libevdev-names.Plo
+	-rm -f ./$(DEPDIR)/libevdev-uinput.Plo
+	-rm -f ./$(DEPDIR)/libevdev.Plo
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-libLTLIBRARIES \
+	uninstall-libevdevincludeHEADERS
+
+.MAKE: all check install install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+	clean-generic clean-libLTLIBRARIES clean-libtool cscopelist-am \
+	ctags ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-libLTLIBRARIES \
+	install-libevdevincludeHEADERS install-man install-pdf \
+	install-pdf-am install-ps install-ps-am install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am uninstall-libLTLIBRARIES \
+	uninstall-libevdevincludeHEADERS
+
+.PRECIOUS: Makefile
+
+
+event-names.h: Makefile make-event-names.py
+	$(PYTHON) $(srcdir)/make-event-names.py $(top_srcdir)/include/linux/@OS@/input.h $(top_srcdir)/include/linux/@OS@/input-event-codes.h  > $@
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

libevdev/libevdev-int.h

@@ -0,0 +1,350 @@
+/*
+ * Copyright © 2013 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef LIBEVDEV_INT_H
+#define LIBEVDEV_INT_H
+
+#include "config.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <errno.h>
+#include "libevdev.h"
+#include "libevdev-util.h"
+
+#define MAX_NAME 256
+#define ABS_MT_MIN ABS_MT_SLOT
+#define ABS_MT_MAX ABS_MT_TOOL_Y
+#define ABS_MT_CNT (ABS_MT_MAX - ABS_MT_MIN + 1)
+#define LIBEVDEV_EXPORT __attribute__((visibility("default")))
+#define ALIAS(_to) __attribute__((alias(#_to)))
+
+/**
+ * Sync state machine:
+ * default state: SYNC_NONE
+ *
+ * SYNC_NONE → SYN_DROPPED or forced sync → SYNC_NEEDED
+ * SYNC_NEEDED → libevdev_next_event(LIBEVDEV_READ_FLAG_SYNC) → SYNC_IN_PROGRESS
+ * SYNC_NEEDED → libevdev_next_event(LIBEVDEV_READ_FLAG_SYNC_NONE) → SYNC_NONE
+ * SYNC_IN_PROGRESS → libevdev_next_event(LIBEVDEV_READ_FLAG_SYNC_NONE) → SYNC_NONE
+ * SYNC_IN_PROGRESS → no sync events left → SYNC_NONE
+ *
+ */
+enum SyncState {
+	SYNC_NONE,
+	SYNC_NEEDED,
+	SYNC_IN_PROGRESS,
+};
+
+/**
+ * Internal only: log data used to send messages to the respective log
+ * handler. We re-use the same struct for a global and inside
+ * struct libevdev.
+ * For the global, device_handler is NULL, for per-device instance
+ * global_handler is NULL.
+ */
+struct logdata {
+	enum libevdev_log_priority priority;		/** minimum logging priority */
+	libevdev_log_func_t global_handler;		/** global handler function */
+	libevdev_device_log_func_t device_handler;	/** per-device handler function */
+	void *userdata;					/** user-defined data pointer */
+};
+
+struct libevdev {
+	int fd;
+	bool initialized;
+	char *name;
+	char *phys;
+	char *uniq;
+	struct input_id ids;
+	int driver_version;
+	unsigned long bits[NLONGS(EV_CNT)];
+	unsigned long props[NLONGS(INPUT_PROP_CNT)];
+	unsigned long key_bits[NLONGS(KEY_CNT)];
+	unsigned long rel_bits[NLONGS(REL_CNT)];
+	unsigned long abs_bits[NLONGS(ABS_CNT)];
+	unsigned long led_bits[NLONGS(LED_CNT)];
+	unsigned long msc_bits[NLONGS(MSC_CNT)];
+	unsigned long sw_bits[NLONGS(SW_CNT)];
+	unsigned long rep_bits[NLONGS(REP_CNT)]; /* convenience, always 1 */
+	unsigned long ff_bits[NLONGS(FF_CNT)];
+	unsigned long snd_bits[NLONGS(SND_CNT)];
+	unsigned long key_values[NLONGS(KEY_CNT)];
+	unsigned long led_values[NLONGS(LED_CNT)];
+	unsigned long sw_values[NLONGS(SW_CNT)];
+	struct input_absinfo abs_info[ABS_CNT];
+	int *mt_slot_vals; /* [num_slots * ABS_MT_CNT] */
+	int num_slots; /**< valid slots in mt_slot_vals */
+	int current_slot;
+	int rep_values[REP_CNT];
+
+	enum SyncState sync_state;
+	enum libevdev_grab_mode grabbed;
+
+	struct input_event *queue;
+	size_t queue_size; /**< size of queue in elements */
+	size_t queue_next; /**< next event index */
+	size_t queue_nsync; /**< number of sync events */
+
+	struct timeval last_event_time;
+
+	struct logdata log;
+};
+
+#define log_msg_cond(dev, priority, ...) \
+	do { \
+		if (_libevdev_log_priority(dev) >= priority) \
+			_libevdev_log_msg(dev, priority, __FILE__, __LINE__, __func__, __VA_ARGS__); \
+	} while(0)
+
+#define log_error(dev, ...) log_msg_cond(dev, LIBEVDEV_LOG_ERROR, __VA_ARGS__)
+#define log_info(dev, ...) log_msg_cond(dev, LIBEVDEV_LOG_INFO, __VA_ARGS__)
+#define log_dbg(dev, ...) log_msg_cond(dev, LIBEVDEV_LOG_DEBUG, __VA_ARGS__)
+#define log_bug(dev, ...) log_msg_cond(dev, LIBEVDEV_LOG_ERROR, "BUG: "__VA_ARGS__)
+
+extern void
+_libevdev_log_msg(const struct libevdev *dev,
+		  enum libevdev_log_priority priority,
+		  const char *file, int line, const char *func,
+		  const char *format, ...) LIBEVDEV_ATTRIBUTE_PRINTF(6, 7);
+extern enum libevdev_log_priority
+_libevdev_log_priority(const struct libevdev *dev);
+
+static inline void
+init_event(struct libevdev *dev, struct input_event *ev, int type, int code, int value)
+{
+	ev->input_event_sec = dev->last_event_time.tv_sec;
+	ev->input_event_usec = dev->last_event_time.tv_usec;
+	ev->type = type;
+	ev->code = code;
+	ev->value = value;
+}
+
+/**
+ * @return a pointer to the next element in the queue, or NULL if the queue
+ * is full.
+ */
+static inline struct input_event*
+queue_push(struct libevdev *dev)
+{
+	if (dev->queue_next >= dev->queue_size)
+		return NULL;
+
+	return &dev->queue[dev->queue_next++];
+}
+
+static inline bool
+queue_push_event(struct libevdev *dev, unsigned int type,
+		 unsigned int code, int value)
+{
+	struct input_event *ev = queue_push(dev);
+
+	if (ev)
+		init_event(dev, ev, type, code, value);
+
+	return ev != NULL;
+}
+
+/**
+ * Set ev to the last element in the queue, removing it from the queue.
+ *
+ * @return 0 on success, 1 if the queue is empty.
+ */
+static inline int
+queue_pop(struct libevdev *dev, struct input_event *ev)
+{
+	if (dev->queue_next == 0)
+		return 1;
+
+	*ev = dev->queue[--dev->queue_next];
+
+	return 0;
+}
+
+static inline int
+queue_peek(struct libevdev *dev, size_t idx, struct input_event *ev)
+{
+	if (dev->queue_next == 0 || idx > dev->queue_next)
+		return 1;
+	*ev = dev->queue[idx];
+	return 0;
+}
+
+/**
+ * Shift the first n elements into ev and return the number of elements
+ * shifted.
+ * ev must be large enough to store n elements.
+ *
+ * @param ev The buffer to copy into, or NULL
+ * @return The number of elements in ev.
+ */
+static inline int
+queue_shift_multiple(struct libevdev *dev, size_t n, struct input_event *ev)
+{
+	size_t remaining;
+
+	if (dev->queue_next == 0)
+		return 0;
+
+	remaining = dev->queue_next;
+	n = min(n, remaining);
+	remaining -= n;
+
+	if (ev)
+		memcpy(ev, dev->queue, n * sizeof(*ev));
+
+	memmove(dev->queue, &dev->queue[n], remaining * sizeof(*dev->queue));
+
+	dev->queue_next = remaining;
+	return n;
+}
+
+/**
+ * Set ev to the first element in the queue, shifting everything else
+ * forward by one.
+ *
+ * @return 0 on success, 1 if the queue is empty.
+ */
+static inline int
+queue_shift(struct libevdev *dev, struct input_event *ev)
+{
+	return queue_shift_multiple(dev, 1, ev) == 1 ? 0 : 1;
+}
+
+static inline int
+queue_alloc(struct libevdev *dev, size_t size)
+{
+	if (size == 0)
+		return -ENOMEM;
+
+	dev->queue = calloc(size, sizeof(struct input_event));
+	if (!dev->queue)
+		return -ENOMEM;
+
+	dev->queue_size = size;
+	dev->queue_next = 0;
+	return 0;
+}
+
+static inline void
+queue_free(struct libevdev *dev)
+{
+	free(dev->queue);
+	dev->queue_size = 0;
+	dev->queue_next = 0;
+}
+
+static inline size_t
+queue_num_elements(struct libevdev *dev)
+{
+	return dev->queue_next;
+}
+
+static inline size_t
+queue_size(struct libevdev *dev)
+{
+	return dev->queue_size;
+}
+
+static inline size_t
+queue_num_free_elements(struct libevdev *dev)
+{
+	if (dev->queue_size == 0)
+		return 0;
+
+	return dev->queue_size - dev->queue_next;
+}
+
+static inline struct input_event *
+queue_next_element(struct libevdev *dev)
+{
+	if (dev->queue_next == dev->queue_size)
+		return NULL;
+
+	return &dev->queue[dev->queue_next];
+}
+
+static inline int
+queue_set_num_elements(struct libevdev *dev, size_t nelem)
+{
+	if (nelem > dev->queue_size)
+		return 1;
+
+	dev->queue_next = nelem;
+
+	return 0;
+}
+
+#define max_mask(uc, lc) \
+	case EV_##uc: \
+			*mask = dev->lc##_bits; \
+			max = libevdev_event_type_get_max(type); \
+		break;
+
+static inline int
+type_to_mask_const(const struct libevdev *dev, unsigned int type, const unsigned long **mask)
+{
+	int max;
+
+	switch(type) {
+		max_mask(ABS, abs);
+		max_mask(REL, rel);
+		max_mask(KEY, key);
+		max_mask(LED, led);
+		max_mask(MSC, msc);
+		max_mask(SW, sw);
+		max_mask(FF, ff);
+		max_mask(REP, rep);
+		max_mask(SND, snd);
+		default:
+		     max = -1;
+		     break;
+	}
+
+	return max;
+}
+
+static inline int
+type_to_mask(struct libevdev *dev, unsigned int type, unsigned long **mask)
+{
+	int max;
+
+	switch(type) {
+		max_mask(ABS, abs);
+		max_mask(REL, rel);
+		max_mask(KEY, key);
+		max_mask(LED, led);
+		max_mask(MSC, msc);
+		max_mask(SW, sw);
+		max_mask(FF, ff);
+		max_mask(REP, rep);
+		max_mask(SND, snd);
+		default:
+		     max = -1;
+		     break;
+	}
+
+	return max;
+}
+
+#undef max_mask
+#endif

libevdev/libevdev-names.c

@@ -0,0 +1,230 @@
+/*
+ * Copyright © 2013 David Herrmann <dh.herrmann@gmail.com>
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include "config.h"
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+
+#include "libevdev-int.h"
+#include "libevdev-util.h"
+#include "libevdev.h"
+
+#include "event-names.h"
+
+struct name_lookup {
+	const char *name;
+	size_t len;
+};
+
+static int cmp_entry(const void *vlookup, const void *ventry)
+{
+	const struct name_lookup *lookup = vlookup;
+	const struct name_entry *entry = ventry;
+	int r;
+
+	r = strncmp(lookup->name, entry->name, lookup->len);
+	if (!r) {
+		if (entry->name[lookup->len])
+			r = -1;
+		else
+			r = 0;
+	}
+
+	return r;
+}
+
+static const struct name_entry*
+lookup_name(const struct name_entry *array, size_t asize,
+	    struct name_lookup *lookup)
+{
+	const struct name_entry *entry;
+
+	entry = bsearch(lookup, array, asize, sizeof(*array), cmp_entry);
+	if (!entry)
+		return NULL;
+
+	return entry;
+}
+
+LIBEVDEV_EXPORT int
+libevdev_event_type_from_name(const char *name)
+{
+	return libevdev_event_type_from_name_n(name, strlen(name));
+}
+
+LIBEVDEV_EXPORT int
+libevdev_event_type_from_name_n(const char *name, size_t len)
+{
+	struct name_lookup lookup;
+	const struct name_entry *entry;
+
+	lookup.name = name;
+	lookup.len = len;
+
+	entry = lookup_name(ev_names, ARRAY_LENGTH(ev_names), &lookup);
+
+	return entry ? (int)entry->value : -1;
+}
+
+static int type_from_prefix(const char *name, ssize_t len)
+{
+	const char *e;
+	size_t i;
+	ssize_t l;
+
+	/* MAX_ is not allowed, even though EV_MAX exists */
+	if (startswith(name, len, "MAX_", 4))
+		return -1;
+	/* BTN_ is special as there is no EV_BTN type */
+	if (startswith(name, len, "BTN_", 4))
+		return EV_KEY;
+	/* FF_STATUS_ is special as FF_ is a prefix of it, so test it first */
+	if (startswith(name, len, "FF_STATUS_", 10))
+		return EV_FF_STATUS;
+
+	for (i = 0; i < ARRAY_LENGTH(ev_names); ++i) {
+		/* skip EV_ prefix so @e is suffix of [EV_]XYZ */
+		e = &ev_names[i].name[3];
+		l = strlen(e);
+
+		/* compare prefix and test for trailing _ */
+		if (len > l && startswith(name, len, e, l) && name[l] == '_')
+			return ev_names[i].value;
+	}
+
+	return -1;
+}
+
+LIBEVDEV_EXPORT int
+libevdev_event_code_from_name(unsigned int type, const char *name)
+{
+	return libevdev_event_code_from_name_n(type, name, strlen(name));
+}
+
+LIBEVDEV_EXPORT int
+libevdev_event_code_from_name_n(unsigned int type, const char *name, size_t len)
+{
+	struct name_lookup lookup;
+	const struct name_entry *entry;
+	int real_type;
+
+	/* verify that @name is really of type @type */
+	real_type = type_from_prefix(name, len);
+	if (real_type < 0 || (unsigned int)real_type != type)
+		return -1;
+
+	/* now look up the name @name and return the constant */
+	lookup.name = name;
+	lookup.len = len;
+
+	entry = lookup_name(code_names, ARRAY_LENGTH(code_names), &lookup);
+
+	return entry ? (int)entry->value : -1;
+}
+
+LIBEVDEV_EXPORT int
+libevdev_event_value_from_name(unsigned int type, unsigned int code, const char *name)
+{
+	return libevdev_event_value_from_name_n(type, code, name, strlen(name));
+}
+
+LIBEVDEV_EXPORT int
+libevdev_event_value_from_name_n(unsigned int type, unsigned int code, const char *name, size_t len)
+{
+	struct name_lookup lookup;
+	const struct name_entry *entry;
+
+	if (type != EV_ABS || code != ABS_MT_TOOL_TYPE)
+		return -1;
+
+	lookup.name = name;
+	lookup.len = len;
+
+	entry = lookup_name(tool_type_names, ARRAY_LENGTH(tool_type_names), &lookup);
+
+	return entry ? (int)entry->value : -1;
+}
+
+LIBEVDEV_EXPORT int
+libevdev_property_from_name(const char *name)
+{
+	return libevdev_property_from_name_n(name, strlen(name));
+}
+
+LIBEVDEV_EXPORT int
+libevdev_property_from_name_n(const char *name, size_t len)
+{
+	struct name_lookup lookup;
+	const struct name_entry *entry;
+
+	lookup.name = name;
+	lookup.len = len;
+
+	entry = lookup_name(prop_names, ARRAY_LENGTH(prop_names), &lookup);
+
+	return entry ? (int)entry->value : -1;
+}
+
+LIBEVDEV_EXPORT int
+libevdev_event_code_from_code_name(const char *name)
+{
+	return libevdev_event_code_from_code_name_n(name, strlen(name));
+}
+
+LIBEVDEV_EXPORT int
+libevdev_event_code_from_code_name_n(const char *name, size_t len)
+{
+	const struct name_entry *entry;
+	struct name_lookup lookup;
+
+	/* now look up the name @name and return the constant */
+	lookup.name = name;
+	lookup.len = len;
+
+	entry = lookup_name(code_names, ARRAY_LENGTH(code_names), &lookup);
+
+	return entry ? (int)entry->value : -1;
+}
+
+LIBEVDEV_EXPORT int
+libevdev_event_type_from_code_name(const char *name)
+{
+	return libevdev_event_type_from_code_name_n(name, strlen(name));
+}
+
+LIBEVDEV_EXPORT int
+libevdev_event_type_from_code_name_n(const char *name, size_t len)
+{
+	const struct name_entry *entry;
+	struct name_lookup lookup;
+
+	/* First look up if the name exists, we dont' want to return a valid
+	 * type for an invalid code name */
+	lookup.name = name;
+	lookup.len = len;
+
+	entry = lookup_name(code_names, ARRAY_LENGTH(code_names), &lookup);
+
+	return entry ? type_from_prefix(name, len) : -1;
+}

libevdev/libevdev-uinput-int.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright © 2013 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+struct libevdev_uinput {
+	int fd; /**< file descriptor to uinput */
+	int fd_is_managed; /**< do we need to close it? */
+	char *name; /**< device name */
+	char *syspath; /**< /sys path */
+	char *devnode; /**< device node */
+	time_t ctime[2]; /**< before/after UI_DEV_CREATE */
+};

libevdev/libevdev-uinput.c

@@ -0,0 +1,502 @@
+/*
+ * Copyright © 2013 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include "config.h"
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/uinput.h>
+#include <poll.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "libevdev-int.h"
+#include "libevdev-uinput-int.h"
+#include "libevdev-uinput.h"
+#include "libevdev-util.h"
+#include "libevdev.h"
+
+#ifndef UINPUT_IOCTL_BASE
+#define UINPUT_IOCTL_BASE       'U'
+#endif
+
+#ifndef UI_SET_PROPBIT
+#define UI_SET_PROPBIT _IOW(UINPUT_IOCTL_BASE, 110, int)
+#endif
+
+static struct libevdev_uinput *
+alloc_uinput_device(const char *name)
+{
+	struct libevdev_uinput *uinput_dev;
+
+	uinput_dev = calloc(1, sizeof(struct libevdev_uinput));
+	if (uinput_dev) {
+		uinput_dev->name = strdup(name);
+		uinput_dev->fd = -1;
+	}
+
+	return uinput_dev;
+}
+
+static inline int
+set_abs(const struct libevdev *dev, int fd, unsigned int code)
+{
+	const struct input_absinfo *abs = libevdev_get_abs_info(dev, code);
+	struct uinput_abs_setup abs_setup = {0};
+	int rc;
+
+	abs_setup.code = code;
+	abs_setup.absinfo = *abs;
+	rc = ioctl(fd, UI_ABS_SETUP, &abs_setup);
+	return rc;
+}
+
+static int
+set_evbits(const struct libevdev *dev, int fd, struct uinput_user_dev *uidev)
+{
+	int rc = 0;
+	unsigned int type;
+
+	for (type = 0; type < EV_CNT; type++) {
+		unsigned int code;
+		int max;
+		int uinput_bit;
+		const unsigned long *mask;
+
+		if (!libevdev_has_event_type(dev, type))
+			continue;
+
+		rc = ioctl(fd, UI_SET_EVBIT, type);
+		if (rc == -1)
+			break;
+
+		/* uinput can't set EV_REP */
+		if (type == EV_REP)
+			continue;
+
+		max = type_to_mask_const(dev, type, &mask);
+		if (max == -1)
+			continue;
+
+		switch(type) {
+			case EV_KEY: uinput_bit = UI_SET_KEYBIT; break;
+			case EV_REL: uinput_bit = UI_SET_RELBIT; break;
+			case EV_ABS: uinput_bit = UI_SET_ABSBIT; break;
+			case EV_MSC: uinput_bit = UI_SET_MSCBIT; break;
+			case EV_LED: uinput_bit = UI_SET_LEDBIT; break;
+			case EV_SND: uinput_bit = UI_SET_SNDBIT; break;
+			case EV_FF: uinput_bit = UI_SET_FFBIT; break;
+			case EV_SW: uinput_bit = UI_SET_SWBIT; break;
+			default:
+				    rc = -1;
+				    errno = EINVAL;
+				    goto out;
+		}
+
+		for (code = 0; code <= (unsigned int)max; code++) {
+			if (!libevdev_has_event_code(dev, type, code))
+				continue;
+
+			rc = ioctl(fd, uinput_bit, code);
+			if (rc == -1)
+				goto out;
+
+			if (type == EV_ABS) {
+				if (uidev == NULL) {
+					rc = set_abs(dev, fd, code);
+					if (rc != 0)
+						goto out;
+				} else {
+					const struct input_absinfo *abs =
+						libevdev_get_abs_info(dev, code);
+
+					uidev->absmin[code] = abs->minimum;
+					uidev->absmax[code] = abs->maximum;
+					uidev->absfuzz[code] = abs->fuzz;
+					uidev->absflat[code] = abs->flat;
+					/* uinput has no resolution in the
+					 * device struct */
+				}
+			}
+		}
+
+	}
+
+out:
+	return rc;
+}
+
+static int
+set_props(const struct libevdev *dev, int fd)
+{
+	unsigned int prop;
+	int rc = 0;
+
+	for (prop = 0; prop <= INPUT_PROP_MAX; prop++) {
+		if (!libevdev_has_property(dev, prop))
+			continue;
+
+		rc = ioctl(fd, UI_SET_PROPBIT, prop);
+		if (rc == -1) {
+			/* If UI_SET_PROPBIT is not supported, treat -EINVAL
+			 * as success. The kernel only sends -EINVAL for an
+			 * invalid ioctl, invalid INPUT_PROP_MAX or if the
+			 * ioctl is called on an already created device. The
+			 * last two can't happen here.
+			 */
+			if (errno == EINVAL)
+				rc = 0;
+			break;
+		}
+	}
+	return rc;
+}
+
+LIBEVDEV_EXPORT int
+libevdev_uinput_get_fd(const struct libevdev_uinput *uinput_dev)
+{
+	return uinput_dev->fd;
+}
+
+#ifdef __FreeBSD__
+/*
+ * FreeBSD does not have anything similar to sysfs.
+ * Set libevdev_uinput->syspath to NULL unconditionally.
+ * Look up the device nodes directly instead of via sysfs, as this matches what
+ * is returned by the UI_GET_SYSNAME ioctl() on FreeBSD.  
+ */
+static int
+fetch_syspath_and_devnode(struct libevdev_uinput *uinput_dev)
+{
+#define DEV_INPUT_DIR "/dev/input/"
+	int rc;
+	char buf[sizeof(DEV_INPUT_DIR) + 64] = DEV_INPUT_DIR;
+
+	rc = ioctl(uinput_dev->fd,
+	           UI_GET_SYSNAME(sizeof(buf) - strlen(DEV_INPUT_DIR)),
+		   &buf[strlen(DEV_INPUT_DIR)]);
+	if (rc == -1)
+		return -1;
+
+	uinput_dev->syspath = NULL;
+	uinput_dev->devnode = strdup(buf);
+
+	return 0;
+#undef DEV_INPUT_DIR
+}
+
+#else /* !__FreeBSD__ */
+
+static int is_event_device(const struct dirent *dent) {
+	return strncmp("event", dent->d_name, 5) == 0;
+}
+
+static char *
+fetch_device_node(const char *path)
+{
+	char *devnode = NULL;
+	struct dirent **namelist;
+	int ndev, i;
+
+	ndev = scandir(path, &namelist, is_event_device, alphasort);
+	if (ndev <= 0)
+		return NULL;
+
+	/* ndev should only ever be 1 */
+
+	for (i = 0; i < ndev; i++) {
+		if (!devnode && asprintf(&devnode, "/dev/input/%s", namelist[i]->d_name) == -1)
+			devnode = NULL;
+		free(namelist[i]);
+	}
+
+	free(namelist);
+
+	return devnode;
+}
+
+static int is_input_device(const struct dirent *dent) {
+	return strncmp("input", dent->d_name, 5) == 0;
+}
+
+static int
+fetch_syspath_and_devnode(struct libevdev_uinput *uinput_dev)
+{
+#define SYS_INPUT_DIR "/sys/devices/virtual/input/"
+	struct dirent **namelist;
+	int ndev, i;
+	int rc;
+	char buf[sizeof(SYS_INPUT_DIR) + 64] = SYS_INPUT_DIR;
+
+	rc = ioctl(uinput_dev->fd,
+		   UI_GET_SYSNAME(sizeof(buf) - strlen(SYS_INPUT_DIR)),
+		   &buf[strlen(SYS_INPUT_DIR)]);
+	if (rc != -1) {
+		uinput_dev->syspath = strdup(buf);
+		uinput_dev->devnode = fetch_device_node(buf);
+		return 0;
+	}
+
+	ndev = scandir(SYS_INPUT_DIR, &namelist, is_input_device, alphasort);
+	if (ndev <= 0)
+		return -1;
+
+	for (i = 0; i < ndev; i++) {
+		int fd, len;
+		struct stat st;
+
+		rc = snprintf(buf, sizeof(buf), "%s%s/name",
+			      SYS_INPUT_DIR,
+			      namelist[i]->d_name);
+		if (rc < 0 || (size_t)rc >= sizeof(buf)) {
+			continue;
+		}
+
+		/* created within time frame */
+		fd = open(buf, O_RDONLY);
+		if (fd < 0)
+			continue;
+
+		/* created before UI_DEV_CREATE, or after it finished */
+		if (fstat(fd, &st) == -1 ||
+		    st.st_ctime < uinput_dev->ctime[0] ||
+		    st.st_ctime > uinput_dev->ctime[1]) {
+			close(fd);
+			continue;
+		}
+
+		len = read(fd, buf, sizeof(buf));
+		close(fd);
+		if (len <= 0)
+			continue;
+
+		buf[len - 1] = '\0'; /* file contains \n */
+		if (strcmp(buf, uinput_dev->name) == 0) {
+			if (uinput_dev->syspath) {
+				/* FIXME: could descend into bit comparison here */
+				log_info(NULL, "multiple identical devices found. syspath is unreliable\n");
+				break;
+			}
+
+			rc = snprintf(buf, sizeof(buf), "%s%s",
+				      SYS_INPUT_DIR,
+				      namelist[i]->d_name);
+
+			if (rc < 0 || (size_t)rc >= sizeof(buf)) {
+				log_error(NULL, "Invalid syspath, syspath is unreliable\n");
+				break;
+			}
+
+			uinput_dev->syspath = strdup(buf);
+			uinput_dev->devnode = fetch_device_node(buf);
+		}
+	}
+
+	for (i = 0; i < ndev; i++)
+		free(namelist[i]);
+	free(namelist);
+
+	return uinput_dev->devnode ? 0 : -1;
+#undef SYS_INPUT_DIR
+}
+#endif /* __FreeBSD__*/
+
+static int
+uinput_create_write(const struct libevdev *dev, int fd)
+{
+	int rc;
+	struct uinput_user_dev uidev;
+
+	memset(&uidev, 0, sizeof(uidev));
+
+	strncpy(uidev.name, libevdev_get_name(dev), UINPUT_MAX_NAME_SIZE - 1);
+	uidev.id.vendor = libevdev_get_id_vendor(dev);
+	uidev.id.product = libevdev_get_id_product(dev);
+	uidev.id.bustype = libevdev_get_id_bustype(dev);
+	uidev.id.version = libevdev_get_id_version(dev);
+
+	if (set_evbits(dev, fd, &uidev) != 0)
+		goto error;
+	if (set_props(dev, fd) != 0)
+		goto error;
+
+	rc = write(fd, &uidev, sizeof(uidev));
+	if (rc < 0) {
+		goto error;
+	} else if ((size_t)rc < sizeof(uidev)) {
+		errno = EINVAL;
+		goto error;
+	}
+
+	errno = 0;
+
+error:
+	return -errno;
+}
+
+static int
+uinput_create_DEV_SETUP(const struct libevdev *dev, int fd,
+			struct libevdev_uinput *new_device)
+{
+	int rc;
+	struct uinput_setup setup;
+
+	if (set_evbits(dev, fd, NULL) != 0)
+		goto error;
+	if (set_props(dev, fd) != 0)
+		goto error;
+
+	memset(&setup, 0, sizeof(setup));
+	strncpy(setup.name, libevdev_get_name(dev), UINPUT_MAX_NAME_SIZE - 1);
+	setup.id.vendor = libevdev_get_id_vendor(dev);
+	setup.id.product = libevdev_get_id_product(dev);
+	setup.id.bustype = libevdev_get_id_bustype(dev);
+	setup.id.version = libevdev_get_id_version(dev);
+	setup.ff_effects_max = libevdev_has_event_type(dev, EV_FF) ? 10 : 0;
+
+	rc = ioctl(fd, UI_DEV_SETUP, &setup);
+	if (rc == 0)
+		errno = 0;
+error:
+	return -errno;
+}
+
+LIBEVDEV_EXPORT int
+libevdev_uinput_create_from_device(const struct libevdev *dev, int fd, struct libevdev_uinput** uinput_dev)
+{
+	int rc;
+	struct libevdev_uinput *new_device;
+	int close_fd_on_error = (fd == LIBEVDEV_UINPUT_OPEN_MANAGED);
+	unsigned int uinput_version = 0;
+
+	new_device = alloc_uinput_device(libevdev_get_name(dev));
+	if (!new_device)
+		return -ENOMEM;
+
+	if (fd == LIBEVDEV_UINPUT_OPEN_MANAGED) {
+		fd = open("/dev/uinput", O_RDWR|O_CLOEXEC);
+		if (fd < 0)
+			goto error;
+
+		new_device->fd_is_managed = 1;
+	} else if (fd < 0) {
+		log_bug(NULL, "Invalid fd %d\n", fd);
+		errno = EBADF;
+		goto error;
+	}
+
+	if (ioctl(fd, UI_GET_VERSION, &uinput_version) == 0 &&
+	    uinput_version >= 5)
+		rc = uinput_create_DEV_SETUP(dev, fd, new_device);
+	else
+		rc = uinput_create_write(dev, fd);
+
+	if (rc != 0)
+		goto error;
+
+	/* ctime notes time before/after ioctl to help us filter out devices
+	   when traversing /sys/devices/virtual/input to find the device
+	   node.
+
+	   this is in seconds, so ctime[0]/[1] will almost always be
+	   identical but /sys doesn't give us sub-second ctime so...
+	 */
+	new_device->ctime[0] = time(NULL);
+
+	rc = ioctl(fd, UI_DEV_CREATE, NULL);
+	if (rc == -1)
+		goto error;
+
+	new_device->ctime[1] = time(NULL);
+	new_device->fd = fd;
+
+	if (fetch_syspath_and_devnode(new_device) == -1) {
+		log_error(NULL, "unable to fetch syspath or device node.\n");
+		errno = ENODEV;
+		goto error;
+	}
+
+	*uinput_dev = new_device;
+
+	return 0;
+
+error:
+	rc = -errno;
+	libevdev_uinput_destroy(new_device);
+	if (fd != -1 && close_fd_on_error)
+		close(fd);
+	return rc;
+}
+
+LIBEVDEV_EXPORT void
+libevdev_uinput_destroy(struct libevdev_uinput *uinput_dev)
+{
+	if (!uinput_dev)
+		return;
+
+	if (uinput_dev->fd >= 0) {
+		(void)ioctl(uinput_dev->fd, UI_DEV_DESTROY, NULL);
+		if (uinput_dev->fd_is_managed)
+			close(uinput_dev->fd);
+	}
+	free(uinput_dev->syspath);
+	free(uinput_dev->devnode);
+	free(uinput_dev->name);
+	free(uinput_dev);
+}
+
+LIBEVDEV_EXPORT const char*
+libevdev_uinput_get_syspath(struct libevdev_uinput *uinput_dev)
+{
+	return uinput_dev->syspath;
+}
+
+LIBEVDEV_EXPORT const char*
+libevdev_uinput_get_devnode(struct libevdev_uinput *uinput_dev)
+{
+	return uinput_dev->devnode;
+}
+
+LIBEVDEV_EXPORT int
+libevdev_uinput_write_event(const struct libevdev_uinput *uinput_dev,
+			    unsigned int type,
+			    unsigned int code,
+			    int value)
+{
+	struct input_event ev = { {0,0}, type, code, value };
+	int fd = libevdev_uinput_get_fd(uinput_dev);
+	int rc, max;
+
+	if (type > EV_MAX)
+		return -EINVAL;
+
+	max = libevdev_event_type_get_max(type);
+	if (max == -1 || code > (unsigned int)max)
+		return -EINVAL;
+
+	rc = write(fd, &ev, sizeof(ev));
+
+	return rc < 0 ? -errno : 0;
+}

libevdev/libevdev-uinput.h

@@ -0,0 +1,255 @@
+/*
+ * Copyright © 2013 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef LIBEVDEV_UINPUT_H
+#define LIBEVDEV_UINPUT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <libevdev/libevdev.h>
+
+struct libevdev_uinput;
+
+/**
+ * @defgroup uinput uinput device creation
+ *
+ * Creation of uinput devices based on existing libevdev devices. These functions
+ * help to create uinput devices that emulate libevdev devices. In the simplest
+ * form it serves to duplicate an existing device:
+ *
+ * @code
+ * int err;
+ * int fd, new_fd, uifd;
+ * struct libevdev *dev;
+ * struct libevdev_uinput *uidev;
+ * struct input_event ev[2];
+ *
+ * fd = open("/dev/input/event0", O_RDONLY);
+ * if (fd < 0)
+ *     return err;
+ *
+ * err = libevdev_new_from_fd(fd, &dev);
+ * if (err != 0)
+ *     return err;
+ *
+ * uifd = open("/dev/uinput", O_RDWR);
+ * if (uifd < 0)
+ *     return -errno;
+ *
+ * err = libevdev_uinput_create_from_device(dev, uifd, &uidev);
+ * if (err != 0)
+ *     return err;
+ *
+ * // post a REL_X event
+ * err = libevdev_uinput_write_event(uidev, EV_REL, REL_X, -1);
+ * if (err != 0)
+ *     return err;
+ * libevdev_uinput_write_event(uidev, EV_SYN, SYN_REPORT, 0);
+ * if (err != 0)
+ *     return err;
+ *
+ * libevdev_uinput_destroy(uidev);
+ * libevdev_free(dev);
+ * close(uifd);
+ * close(fd);
+ *
+ * @endcode
+ *
+ * Alternatively, a device can be constructed from scratch:
+ *
+ * @code
+ * int err;
+ * struct libevdev *dev;
+ * struct libevdev_uinput *uidev;
+ *
+ * dev = libevdev_new();
+ * libevdev_set_name(dev, "test device");
+ * libevdev_enable_event_type(dev, EV_REL);
+ * libevdev_enable_event_code(dev, EV_REL, REL_X, NULL);
+ * libevdev_enable_event_code(dev, EV_REL, REL_Y, NULL);
+ * libevdev_enable_event_type(dev, EV_KEY);
+ * libevdev_enable_event_code(dev, EV_KEY, BTN_LEFT, NULL);
+ * libevdev_enable_event_code(dev, EV_KEY, BTN_MIDDLE, NULL);
+ * libevdev_enable_event_code(dev, EV_KEY, BTN_RIGHT, NULL);
+ *
+ * err = libevdev_uinput_create_from_device(dev,
+ *                                          LIBEVDEV_UINPUT_OPEN_MANAGED,
+ *                                          &uidev);
+ * if (err != 0)
+ *     return err;
+ *
+ * // ... do something ...
+ *
+ * libevdev_uinput_destroy(uidev);
+ *
+ * @endcode
+ */
+
+enum libevdev_uinput_open_mode {
+	/* intentionally -2 to avoid to avoid code like the below from accidentally working:
+		fd = open("/dev/uinput", O_RDWR); // fails, fd is -1
+		libevdev_uinput_create_from_device(dev, fd, &uidev); // may hide the error */
+	LIBEVDEV_UINPUT_OPEN_MANAGED = -2  /**< let libevdev open and close @c /dev/uinput */
+};
+
+/**
+ * @ingroup uinput
+ *
+ * Create a uinput device based on the given libevdev device. The uinput device
+ * will be an exact copy of the libevdev device, minus the bits that uinput doesn't
+ * allow to be set.
+ *
+ * If uinput_fd is @ref LIBEVDEV_UINPUT_OPEN_MANAGED, libevdev_uinput_create_from_device()
+ * will open @c /dev/uinput in read/write mode and manage the file descriptor.
+ * Otherwise, uinput_fd must be opened by the caller and opened with the
+ * appropriate permissions.
+ *
+ * The device's lifetime is tied to the uinput file descriptor, closing it will
+ * destroy the uinput device. You should call libevdev_uinput_destroy() before
+ * closing the file descriptor to free allocated resources.
+ * A file descriptor can only create one uinput device at a time; the second device
+ * will fail with -EINVAL.
+ *
+ * You don't need to keep the file descriptor variable around,
+ * libevdev_uinput_get_fd() will return it when needed.
+ *
+ * @note Due to limitations in the uinput kernel module, REP_DELAY and
+ * REP_PERIOD will default to the kernel defaults, not to the ones set in the
+ * source device.
+ *
+ * @note On FreeBSD, if the UI_GET_SYSNAME ioctl() fails, there is no other way
+ * to get a device, and the function call will fail.
+ *
+ * @param dev The device to duplicate
+ * @param uinput_fd @ref LIBEVDEV_UINPUT_OPEN_MANAGED or a file descriptor to @c /dev/uinput,
+ * @param[out] uinput_dev The newly created libevdev device.
+ *
+ * @return 0 on success or a negative errno on failure. On failure, the value of
+ * uinput_dev is unmodified.
+ *
+ * @see libevdev_uinput_destroy
+ */
+int libevdev_uinput_create_from_device(const struct libevdev *dev,
+				       int uinput_fd,
+				       struct libevdev_uinput **uinput_dev);
+
+/**
+ * @ingroup uinput
+ *
+ * Destroy a previously created uinput device and free associated memory.
+ *
+ * If the device was opened with @ref LIBEVDEV_UINPUT_OPEN_MANAGED,
+ * libevdev_uinput_destroy() also closes the file descriptor. Otherwise, the
+ * fd is left as-is and must be closed by the caller.
+ *
+ * @param uinput_dev A previously created uinput device.
+ */
+void libevdev_uinput_destroy(struct libevdev_uinput *uinput_dev);
+
+/**
+ * @ingroup uinput
+ *
+ * Return the file descriptor used to create this uinput device. This is the
+ * fd pointing to <strong>/dev/uinput</strong>. This file descriptor may be used to write
+ * events that are emitted by the uinput device.
+ * Closing this file descriptor will destroy the uinput device, you should
+ * call libevdev_uinput_destroy() first to free allocated resources.
+ *
+ * @param uinput_dev A previously created uinput device.
+ *
+ * @return The file descriptor used to create this device
+ */
+int libevdev_uinput_get_fd(const struct libevdev_uinput *uinput_dev);
+
+/**
+ * @ingroup uinput
+ *
+ * Return the syspath representing this uinput device. If the UI_GET_SYSNAME
+ * ioctl not available, libevdev makes an educated guess.
+ * The UI_GET_SYSNAME ioctl is available since Linux 3.15.
+ *
+ * The syspath returned is the one of the input node itself
+ * (e.g. /sys/devices/virtual/input/input123), not the syspath of the device
+ * node returned with libevdev_uinput_get_devnode().
+ *
+ * @note This function may return NULL if UI_GET_SYSNAME is not available.
+ * In that case, libevdev uses ctime and the device name to guess devices.
+ * To avoid false positives, wait at least wait at least 1.5s between
+ * creating devices that have the same name.
+ *
+ * @note FreeBSD does not have sysfs, on FreeBSD this function always returns
+ * NULL.
+ *
+ * @param uinput_dev A previously created uinput device.
+ * @return The syspath for this device, including the preceding /sys
+ *
+ * @see libevdev_uinput_get_devnode
+ */
+const char* libevdev_uinput_get_syspath(struct libevdev_uinput *uinput_dev);
+
+/**
+ * @ingroup uinput
+ *
+ * Return the device node representing this uinput device.
+ *
+ * This relies on libevdev_uinput_get_syspath() to provide a valid syspath.
+ * See libevdev_uinput_get_syspath() for more details.
+ *
+ * @note This function may return NULL. libevdev may have to guess the
+ * syspath and the device node. See libevdev_uinput_get_syspath() for details.
+ *
+ * @note On FreeBSD, this function can not return NULL.  libudev uses the
+ * UI_GET_SYSNAME ioctl to get the device node on this platform and if that
+ * fails, the call to libevdev_uinput_create_from_device() fails.
+ *
+ * @param uinput_dev A previously created uinput device.
+ * @return The device node for this device, in the form of /dev/input/eventN
+ *
+ * @see libevdev_uinput_get_syspath
+ */
+const char* libevdev_uinput_get_devnode(struct libevdev_uinput *uinput_dev);
+
+/**
+ * @ingroup uinput
+ *
+ * Post an event through the uinput device. It is the caller's responsibility
+ * that any event sequence is terminated with an EV_SYN/SYN_REPORT/0 event.
+ * Otherwise, listeners on the device node will not see the events until the
+ * next EV_SYN event is posted.
+ *
+ * @param uinput_dev A previously created uinput device.
+ * @param type Event type (EV_ABS, EV_REL, etc.)
+ * @param code Event code (ABS_X, REL_Y, etc.)
+ * @param value The event value
+ * @return 0 on success or a negative errno on error
+ */
+int libevdev_uinput_write_event(const struct libevdev_uinput *uinput_dev,
+				unsigned int type,
+				unsigned int code,
+				int value);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LIBEVDEV_UINPUT_H */

libevdev/libevdev-util.h

@@ -0,0 +1,86 @@
+/*
+ * Copyright © 2013 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef _UTIL_H_
+#define _UTIL_H_
+
+#include "config.h"
+#include <stdbool.h>
+#include <string.h>
+
+#define LONG_BITS (sizeof(long) * 8)
+#define NLONGS(x) (((x) + LONG_BITS - 1) / LONG_BITS)
+#define ARRAY_LENGTH(a) (sizeof(a) / (sizeof((a)[0])))
+#define unlikely(x) (__builtin_expect(!!(x),0))
+
+#undef min
+#undef max
+#ifdef __GNUC__
+#define min(a,b) \
+		({ __typeof__ (a) _a = (a); \
+	          __typeof__ (b) _b = (b); \
+		_a > _b ? _b : _a; \
+		})
+#define max(a,b) \
+		({ __typeof__ (a) _a = (a); \
+	          __typeof__ (b) _b = (b); \
+		_a > _b ? _a : _b; \
+		})
+#else
+#define min(a,b) ((a) > (b) ? (b) : (a))
+#define max(a,b) ((a) > (b) ? (a) : (b))
+#endif
+
+static inline bool
+startswith(const char *str, size_t len, const char *prefix, size_t plen)
+{
+	return len >= plen && !strncmp(str, prefix, plen);
+}
+
+static inline int
+bit_is_set(const unsigned long *array, int bit)
+{
+    return !!(array[bit / LONG_BITS] & (1LL << (bit % LONG_BITS)));
+}
+
+static inline void
+set_bit(unsigned long *array, int bit)
+{
+    array[bit / LONG_BITS] |= (1LL << (bit % LONG_BITS));
+}
+
+static inline void
+clear_bit(unsigned long *array, int bit)
+{
+    array[bit / LONG_BITS] &= ~(1LL << (bit % LONG_BITS));
+}
+
+static inline void
+set_bit_state(unsigned long *array, int bit, int state)
+{
+	if (state)
+		set_bit(array, bit);
+	else
+		clear_bit(array, bit);
+}
+
+#endif

libevdev/libevdev.sym

@@ -0,0 +1,140 @@
+/*
+ * Copyright (c) 2013 David Herrmann <dh.herrmann@gmail.com>
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+LIBEVDEV_1 {
+global:
+	libevdev_change_fd;
+	libevdev_disable_event_code;
+	libevdev_disable_event_type;
+	libevdev_enable_event_code;
+	libevdev_enable_event_type;
+	libevdev_enable_property;
+	libevdev_event_code_from_name;
+	libevdev_event_code_from_name_n;
+	libevdev_event_code_get_name;
+	libevdev_event_is_code;
+	libevdev_event_is_type;
+	libevdev_event_type_from_name;
+	libevdev_event_type_from_name_n;
+	libevdev_event_type_get_max;
+	libevdev_event_type_get_name;
+	libevdev_fetch_event_value;
+	libevdev_fetch_slot_value;
+	libevdev_free;
+	libevdev_get_abs_flat;
+	libevdev_get_abs_fuzz;
+	libevdev_get_abs_info;
+	libevdev_get_abs_maximum;
+	libevdev_get_abs_minimum;
+	libevdev_get_abs_resolution;
+	libevdev_get_current_slot;
+	libevdev_get_driver_version;
+	libevdev_get_event_value;
+	libevdev_get_fd;
+	libevdev_get_id_bustype;
+	libevdev_get_id_product;
+	libevdev_get_id_vendor;
+	libevdev_get_id_version;
+	libevdev_get_log_priority;
+	libevdev_get_name;
+	libevdev_get_num_slots;
+	libevdev_get_phys;
+	libevdev_get_repeat;
+	libevdev_get_slot_value;
+	libevdev_get_uniq;
+	libevdev_grab;
+	libevdev_has_event_code;
+	libevdev_has_event_pending;
+	libevdev_has_event_type;
+	libevdev_has_property;
+	libevdev_kernel_set_abs_info;
+	libevdev_kernel_set_led_value;
+	libevdev_kernel_set_led_values;
+	libevdev_new;
+	libevdev_new_from_fd;
+	libevdev_next_event;
+	libevdev_property_get_name;
+	libevdev_set_abs_flat;
+	libevdev_set_abs_fuzz;
+	libevdev_set_abs_info;
+	libevdev_set_abs_maximum;
+	libevdev_set_abs_minimum;
+	libevdev_set_abs_resolution;
+	libevdev_set_clock_id;
+	libevdev_set_event_value;
+	libevdev_set_fd;
+	libevdev_set_id_bustype;
+	libevdev_set_id_product;
+	libevdev_set_id_vendor;
+	libevdev_set_id_version;
+	libevdev_set_log_function;
+	libevdev_set_log_priority;
+	libevdev_set_name;
+	libevdev_set_phys;
+	libevdev_set_slot_value;
+	libevdev_set_uniq;
+	libevdev_uinput_create_from_device;
+	libevdev_uinput_destroy;
+	libevdev_uinput_get_devnode;
+	libevdev_uinput_get_fd;
+	libevdev_uinput_get_syspath;
+	libevdev_uinput_write_event;
+
+local:
+	*;
+};
+
+LIBEVDEV_1_3 {
+global:
+	libevdev_set_device_log_function;
+	libevdev_property_from_name;
+	libevdev_property_from_name_n;
+
+local:
+	*;
+} LIBEVDEV_1;
+
+LIBEVDEV_1_6 {
+global:
+	libevdev_event_value_get_name;
+	libevdev_event_value_from_name;
+	libevdev_event_value_from_name_n;
+local:
+	*;
+} LIBEVDEV_1_3;
+
+LIBEVDEV_1_7 {
+global:
+	libevdev_event_code_from_code_name;
+	libevdev_event_code_from_code_name_n;
+	libevdev_event_type_from_code_name;
+	libevdev_event_type_from_code_name_n;
+local:
+	*;
+} LIBEVDEV_1_6;
+
+LIBEVDEV_1_10 {
+global:
+	libevdev_disable_property;
+local:
+	*;
+} LIBEVDEV_1_7;

libevdev/make-event-names.py

@@ -0,0 +1,231 @@
+#!/usr/bin/env python3
+#
+# Parses linux/input.h scanning for #define KEY_FOO 134
+# Prints C header files or Python files that can be used as
+# mapping and lookup tables.
+#
+
+import re
+import sys
+
+
+class Bits(object):
+    def __init__(self):
+        self.max_codes = {}
+
+
+prefixes = [
+    "EV_",
+    "REL_",
+    "ABS_",
+    "KEY_",
+    "BTN_",
+    "LED_",
+    "SND_",
+    "MSC_",
+    "SW_",
+    "FF_",
+    "SYN_",
+    "REP_",
+    "INPUT_PROP_",
+    "MT_TOOL_",
+]
+
+duplicates = [
+    "EV_VERSION",
+    "BTN_MISC",
+    "BTN_MOUSE",
+    "BTN_JOYSTICK",
+    "BTN_GAMEPAD",
+    "BTN_DIGI",
+    "BTN_WHEEL",
+    "BTN_TRIGGER_HAPPY",
+    "SW_MAX",
+    "REP_MAX",
+]
+
+btn_additional = [
+    [0, "BTN_A"],
+    [0, "BTN_B"],
+    [0, "BTN_X"],
+    [0, "BTN_Y"],
+]
+
+code_prefixes = [
+    "REL_",
+    "ABS_",
+    "KEY_",
+    "BTN_",
+    "LED_",
+    "SND_",
+    "MSC_",
+    "SW_",
+    "FF_",
+    "SYN_",
+    "REP_",
+]
+
+
+def print_bits(bits, prefix):
+    if not hasattr(bits, prefix):
+        return
+    print("static const char * const %s_map[%s_MAX + 1] = {" % (prefix, prefix.upper()))
+    for val, name in list(getattr(bits, prefix).items()):
+        print("    [%s] = \"%s\"," % (name, name))
+    if prefix == "key":
+        for val, name in list(getattr(bits, "btn").items()):
+            print("    [%s] = \"%s\"," % (name, name))
+    print("};")
+    print("")
+
+
+def print_map(bits):
+    print("static const char * const * const event_type_map[EV_MAX + 1] = {")
+
+    for prefix in prefixes:
+        if prefix in ["BTN_", "EV_", "INPUT_PROP_", "MT_TOOL_"]:
+            continue
+        print("    [EV_%s] = %s_map," % (prefix[:-1], prefix[:-1].lower()))
+
+    print("};")
+    print("")
+
+    print("#if __clang__")
+    print("#pragma clang diagnostic push")
+    print("#pragma clang diagnostic ignored \"-Winitializer-overrides\"")
+    print("#elif __GNUC__")
+    print("#pragma GCC diagnostic push")
+    print("#pragma GCC diagnostic ignored \"-Woverride-init\"")
+    print("#endif")
+    print("static const int ev_max[EV_MAX + 1] = {")
+    for val in range(bits.max_codes["EV_MAX"] + 1):
+        if val in bits.ev:
+            prefix = bits.ev[val][3:]
+            if prefix + "_" in prefixes:
+                print("    %s_MAX," % prefix)
+                continue
+        print("    -1,")
+    print("};")
+    print("#if __clang__")
+    print("#pragma clang diagnostic pop /* \"-Winitializer-overrides\" */")
+    print("#elif __GNUC__")
+    print("#pragma GCC diagnostic pop /* \"-Woverride-init\" */")
+    print("#endif")
+    print("")
+
+
+def print_lookup(bits, prefix):
+    if not hasattr(bits, prefix):
+        return
+
+    names = list(getattr(bits, prefix).items())
+    if prefix == "btn":
+        names = names + btn_additional
+
+    # We need to manually add the _MAX codes because some are
+    # duplicates
+    maxname = "%s_MAX" % (prefix.upper())
+    if maxname in duplicates:
+        names.append((bits.max_codes[maxname], maxname))
+
+    for val, name in sorted(names, key=lambda e: e[1]):
+        print("    { .name = \"%s\", .value = %s }," % (name, name))
+
+
+def print_lookup_table(bits):
+    print("struct name_entry {")
+    print("    const char *name;")
+    print("    unsigned int value;")
+    print("};")
+    print("")
+    print("static const struct name_entry tool_type_names[] = {")
+    print_lookup(bits, "mt_tool")
+    print("};")
+    print("")
+    print("static const struct name_entry ev_names[] = {")
+    print_lookup(bits, "ev")
+    print("};")
+    print("")
+
+    print("static const struct name_entry code_names[] = {")
+    for prefix in sorted(code_prefixes, key=lambda e: e):
+        print_lookup(bits, prefix[:-1].lower())
+    print("};")
+    print("")
+    print("static const struct name_entry prop_names[] = {")
+    print_lookup(bits, "input_prop")
+    print("};")
+    print("")
+
+
+def print_mapping_table(bits):
+    print("/* THIS FILE IS GENERATED, DO NOT EDIT */")
+    print("")
+    print("#ifndef EVENT_NAMES_H")
+    print("#define EVENT_NAMES_H")
+    print("")
+
+    for prefix in prefixes:
+        if prefix == "BTN_":
+            continue
+        print_bits(bits, prefix[:-1].lower())
+
+    print_map(bits)
+    print_lookup_table(bits)
+
+    print("#endif /* EVENT_NAMES_H */")
+
+
+def parse_define(bits, line):
+    m = re.match(r"^#define\s+(\w+)\s+(\w+)", line)
+    if m is None:
+        return
+
+    name = m.group(1)
+
+    try:
+        value = int(m.group(2), 0)
+    except ValueError:
+        return
+
+    for prefix in prefixes:
+        if not name.startswith(prefix):
+            continue
+
+        if name.endswith("_MAX"):
+            bits.max_codes[name] = value
+
+        if name in duplicates:
+            return
+
+        attrname = prefix[:-1].lower()
+
+        if not hasattr(bits, attrname):
+            setattr(bits, attrname, {})
+        b = getattr(bits, attrname)
+        b[value] = name
+
+
+def parse(lines):
+    bits = Bits()
+    for line in lines:
+        if not line.startswith("#define"):
+            continue
+        parse_define(bits, line)
+
+    return bits
+
+
+def usage(prog):
+    print("Usage: %s <files>".format(prog))
+
+
+if __name__ == "__main__":
+    if len(sys.argv) <= 1:
+        usage(sys.argv[0])
+        sys.exit(2)
+
+    from itertools import chain
+    lines = chain(*[open(f).readlines() for f in sys.argv[1:]])
+    bits = parse(lines)
+    print_mapping_table(bits)