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Diffstat (limited to 'test/mtdev-test.c')
| -rw-r--r-- | test/mtdev-test.c | 120 |
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; +} |