Imported from /home/lorry/working-area/delta_mtdev/mtdev-1.1.3.tar.gz.HEADmtdev-1.1.3master

1 files changed, 120 insertions, 0 deletions

diff --git a/test/mtdev-test.c b/test/mtdev-test.c
new file mode 100644
index 0000000..1b3e4f2
--- /dev/null
+++ b/test/mtdev-test.c
@@ -0,0 +1,120 @@
+/*****************************************************************************
+ *
+ * mtdev - Multitouch Protocol Translation Library (MIT license)
+ *
+ * Copyright (C) 2010 Henrik Rydberg <rydberg@euromail.se>
+ * Copyright (C) 2010 Canonical Ltd.
+ *
+ * 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 <mtdev.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+/* year-proof millisecond event time */
+typedef __u64 mstime_t;
+
+static int use_event(const struct input_event *ev)
+{
+#if 0
+	return ev->type == EV_ABS && mtdev_is_absmt(ev->code);
+#else
+	return 1;
+#endif
+}
+
+static void print_event(const struct input_event *ev)
+{
+	static const mstime_t ms = 1000;
+	static int slot;
+	mstime_t evtime = ev->time.tv_usec / ms + ev->time.tv_sec * ms;
+	if (ev->type == EV_ABS && ev->code == ABS_MT_SLOT)
+		slot = ev->value;
+	fprintf(stderr, "%012llx %02d %01d %04x %d\n",
+		evtime, slot, ev->type, ev->code, ev->value);
+}
+
+#define CHECK(dev, name)			\
+	if (mtdev_has_mt_event(dev, name))	\
+		fprintf(stderr, "   %s\n", #name)
+
+static void show_props(const struct mtdev *dev)
+{
+	fprintf(stderr, "supported mt events:\n");
+	CHECK(dev, ABS_MT_SLOT);
+	CHECK(dev, ABS_MT_TOUCH_MAJOR);
+	CHECK(dev, ABS_MT_TOUCH_MINOR);
+	CHECK(dev, ABS_MT_WIDTH_MAJOR);
+	CHECK(dev, ABS_MT_WIDTH_MINOR);
+	CHECK(dev, ABS_MT_ORIENTATION);
+	CHECK(dev, ABS_MT_POSITION_X);
+	CHECK(dev, ABS_MT_POSITION_Y);
+	CHECK(dev, ABS_MT_TOOL_TYPE);
+	CHECK(dev, ABS_MT_BLOB_ID);
+	CHECK(dev, ABS_MT_TRACKING_ID);
+	CHECK(dev, ABS_MT_PRESSURE);
+	CHECK(dev, ABS_MT_DISTANCE);
+}
+
+static void loop_device(int fd)
+{
+	struct mtdev dev;
+	struct input_event ev;
+	int ret = mtdev_open(&dev, fd);
+	if (ret) {
+		fprintf(stderr, "error: could not open device: %d\n", ret);
+		return;
+	}
+	show_props(&dev);
+	/* while the device has not been inactive for five seconds */
+	while (!mtdev_idle(&dev, fd, 5000)) {
+		/* extract all available processed events */
+		while (mtdev_get(&dev, fd, &ev, 1) > 0) {
+			if (use_event(&ev))
+				print_event(&ev);
+		}
+	}
+	mtdev_close(&dev);
+}
+
+int main(int argc, char *argv[])
+{
+	int fd;
+	if (argc < 2) {
+		fprintf(stderr, "Usage: mtdev <device>\n");
+		return -1;
+	}
+	fd = open(argv[1], O_RDONLY | O_NONBLOCK);
+	if (fd < 0) {
+		fprintf(stderr, "error: could not open device\n");
+		return -1;
+	}
+	if (ioctl(fd, EVIOCGRAB, 1)) {
+		fprintf(stderr, "error: could not grab the device\n");
+		return -1;
+	}
+	loop_device(fd);
+	ioctl(fd, EVIOCGRAB, 0);
+	close(fd);
+	return 0;
+}