Add test/ directory for uinput-based test devices.

Three test devices provided:
btn0 .... Provides BTN_0, BTN_1, BTN_2 instead of BTN_LEFT, BTN_MIDDLE,
          BTN_RIGHT.
abs ..... Provdes x/y absolute axes, jumps between 100/100 and 120/120.
absrel .. Provides relative x/y axes and absolute x/y axes at the same time.

Signed-off-by: Peter Hutterer <peter.hutterer@redhat.com>

1 files changed, 199 insertions, 0 deletions

diff --git a/test/fakedev.c b/test/fakedev.c
new file mode 100644
index 0000000..a3a1b81
--- /dev/null
+++ b/test/fakedev.c
@@ -0,0 +1,199 @@
+/*
+ * Copyright © 2008 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 Red Hat
+ * not be used in advertising or publicity pertaining to distribution
+ * of the software without specific, written prior permission.  Red
+ * Hat makes no representations about the suitability of this software
+ * for any purpose.  It is provided "as is" without express or implied
+ * warranty.
+ *
+ * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
+ * NO EVENT SHALL THE AUTHORS 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.
+ *
+ * Authors:
+ *	Peter Hutterer (peter.hutterer@redhat.com)
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <unistd.h>
+#include <linux/input.h>
+#include <linux/uinput.h>
+#include <dlfcn.h>
+
+#include "fakedev.h"
+
+/* "public interfaces" */
+
+void send_event(int fd, int type, int code, int value)
+{
+    struct input_event event;
+
+    event.type  = type;
+    event.code  = code;
+    event.value = value;
+    gettimeofday(&event.time, NULL);
+
+    if (write(fd, &event, sizeof(event)) < sizeof(event))
+        perror("Send event failed.");
+}
+
+
+void move(int fd, int x, int y)
+{
+    if (!x && !y)
+        return;
+
+    send_event(fd, EV_REL, REL_X, x);
+    send_event(fd, EV_REL, REL_Y, y);
+    send_event(fd, EV_SYN, SYN_REPORT, 0);
+}
+
+void absmove(int fd, int x, int y)
+{
+    send_event(fd, EV_ABS, ABS_X, x);
+    send_event(fd, EV_ABS, ABS_Y, y);
+    send_event(fd, EV_SYN, SYN_REPORT, 0);
+}
+
+void click(int fd, int btn, int down)
+{
+    send_event(fd, EV_KEY, btn, down);
+    send_event(fd, EV_SYN, SYN_REPORT, 0);
+}
+
+
+
+/* end public interfaces */
+
+static int fd   = -1;
+static int stop = 0;
+
+static void sighandler(int signum)
+{
+    printf("Stopping.\n");
+    stop = 1;
+}
+
+static void init_signal(void)
+{
+    struct sigaction action;
+    sigset_t mask;
+
+    sigfillset(&mask);
+
+    action.sa_handler = sighandler;
+    action.sa_mask    = mask;
+    action.sa_flags   = 0;
+
+    sigaction(SIGTERM, &action, NULL);
+    sigaction(SIGINT, &action, NULL);
+    sigprocmask(SIG_UNBLOCK, &mask, 0);
+}
+
+
+static int init_uinput(struct test_device* test_dev)
+{
+    struct uinput_user_dev dev;
+
+    fd = open("/dev/input/uinput", O_RDWR);
+    if (fd < 0)
+        goto error;
+
+    memset(&dev, 0, sizeof(dev));
+    strcpy(dev.name, test_dev->name);
+    dev.id.bustype = 0;
+    dev.id.vendor  = 0x1F;
+    dev.id.product = 0x1F;
+    dev.id.version = 0;
+
+
+    test_dev->setup(&dev, fd);
+
+    if (write(fd, &dev, sizeof(dev)) < sizeof(dev))
+        goto error;
+    if (ioctl(fd, UI_DEV_CREATE, NULL) == -1) goto error;
+
+    return 0;
+
+error:
+    fprintf(stderr, "Error: %s\n", strerror(errno));
+
+    if (fd != -1)
+        close(fd);
+
+    return -1;
+}
+
+static void cleanup_uinput(void)
+{
+    if (fd == -1)
+        return;
+
+    ioctl(fd, UI_DEV_DESTROY, NULL);
+    close(fd);
+    fd = -1;
+}
+
+
+int main (int argc, char **argv)
+{
+    struct test_device *dev;
+    void *dlhandle = NULL;
+    struct test_device* (*get_device)(void);
+
+    if (argc <= 1)
+    {
+        fprintf(stderr, "Usage: %s test_dev\n", argv[0]);
+        return -1;
+    }
+
+    printf("Loading %s.\n", argv[1]);
+
+    dlhandle = dlopen(argv[1], RTLD_NOW | RTLD_GLOBAL);
+    if (!dlhandle)
+    {
+        fprintf(stderr, "Error: %s\n", dlerror());
+        return -1;
+    }
+
+    *(void**)(&get_device) = dlsym(dlhandle, "get_device");
+    if (!get_device)
+    {
+        fprintf(stderr, "Error getting the symbol: %s.\n", dlerror());
+        return -1;
+    }
+
+    dev = (*get_device)();
+
+    if (init_uinput(dev) < 0) {
+        fprintf(stderr, "Failed to initialize /dev/uinput. Exiting.\n");
+        return -1;
+    }
+
+    init_signal();
+
+    printf("Device created. Press CTRL+C to terminate.\n");
+    while (!stop) {
+        if (dev->run(fd))
+            break;
+    }
+
+    cleanup_uinput();
+
+    return 0;
+}
+