tools: add evemu-print for human-readable device descriptionsevemu

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

2 files changed, 135 insertions, 0 deletions

diff --git a/tools/Makefile.am b/tools/Makefile.am
index 49609ab..0d91784 100644
--- a/tools/Makefile.am
+++ b/tools/Makefile.am
@@ -5,6 +5,7 @@ bin_PROGRAMS = \
 	evtest \
 	evemu-describe \
 	evemu-device \
+	evemu-print \
 	evemu-record \
 	evemu-play
 
diff --git a/tools/evemu-print.c b/tools/evemu-print.c
new file mode 100644
index 0000000..f4e9f45
--- /dev/null
+++ b/tools/evemu-print.c
@@ -0,0 +1,134 @@
+/*****************************************************************************
+ *
+ * evemu - Kernel device emulation
+ *
+ * Copyright (C) 2011 Red Hat, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Copyright (C) 2010 Henrik Rydberg <rydberg@euromail.se>
+ *
+ * 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
+ * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ ****************************************************************************/
+
+#include <evemu.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+
+static int print_events(FILE *fp) {
+	struct input_event ev;
+	int ret = 0;
+
+	while(evemu_read_event(fp, &ev) > 0) {
+		const char *type, *code;
+		type = evemu_get_type_name(ev.type);
+		code = evemu_get_code_name(ev.type, ev.code);
+
+		printf("Event: time %ld.%06ld, ", ev.time.tv_sec, ev.time.tv_usec);
+
+		if (ev.type == EV_SYN) {
+			if (ev.code == SYN_MT_REPORT)
+				printf("++++++++++++++ %s ++++++++++++\n", code);
+			else
+				printf("-------------- %s ------------\n", code);
+		} else {
+			printf("type %d (%s), code %d (%s), ", ev.type, type, ev.code, code);
+
+			if (ev.type == EV_MSC && (ev.code == MSC_RAW || ev.code == MSC_SCAN))
+				printf("value %02x\n", ev.value);
+			else
+				printf("value %d\n", ev.value);
+		}
+	}
+
+	return ret;
+}
+
+static int print_device(FILE *fp)
+{
+	struct evemu_device *dev;
+	int type, code;
+
+	dev = evemu_new(NULL);
+	if (!evemu_read(dev, stdin))
+		return -1;
+
+	printf("Name: %s\n", evemu_get_name(dev));
+	printf("ID: bus 0x%x vendor 0x%x product 0x%x version 0x%x\n",
+			evemu_get_id_bustype(dev),
+			evemu_get_id_vendor(dev),
+			evemu_get_id_product(dev),
+			evemu_get_id_version(dev));
+
+	printf("Input device name: \"%s\"\n", evemu_get_name(dev));
+
+	printf("Supported events:\n");
+
+	for (type = 0; type < EV_MAX; type++) {
+		for (code = 0; code < KEY_MAX; code++) {
+			if (evemu_has_event(dev, type, code)) {
+				printf("  Event type %d (%s) code %d (%s)\n",
+						type, evemu_get_type_name(type),
+						code, evemu_get_code_name(type, code));
+
+				if (type == EV_ABS) {
+					printf("     min: %d max: %d fuzz: %d flat: %d res: %d\n",
+						evemu_get_abs_minimum(dev, code),
+						evemu_get_abs_maximum(dev, code),
+						evemu_get_abs_fuzz(dev, code),
+						evemu_get_abs_flat(dev, code),
+						evemu_get_abs_resolution(dev, code));
+				}
+			}
+		}
+	}
+	evemu_delete(dev);
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+
+	if (argc != 1) {
+		fprintf(stderr, "Usage: %s\n", argv[0]);
+		fprintf(stderr, "\n");
+		fprintf(stderr, "Event data is read from standard input.\n");
+		return -1;
+	}
+
+	print_device(stdin);
+	print_events(stdin);
+
+	return 0;
+}