Rename input.c to evdev.c.

diff --git a/evdev.c b/evdev.c
new file mode 100644 (file)
index 0000000..f91b685
--- /dev/null
+++ b/evdev.c
@@ -0,0 +1,151 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <linux/input.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <linux/input.h>
+
+#include "wayland.h"
+
+struct wl_input_device {
+       struct wl_object base;
+       struct wl_event_source *source;
+       struct wl_display *display;
+       int fd;
+       int tool;
+       int32_t x, y;
+};
+
+static const struct wl_method input_device_methods[] = {
+};
+
+static const struct wl_interface input_device_interface = {
+       "input_device", 1,
+       ARRAY_LENGTH(input_device_methods),
+       input_device_methods,
+};
+
+static void wl_input_device_data(int fd, uint32_t mask, void *data)
+{
+       struct wl_input_device *device = data;
+       struct input_event ev[8], *e, *end;
+       int len, value, dx, dy, absolute_event;
+
+       dx = 0;
+       dy = 0;
+       absolute_event = 0;
+
+       len = read(fd, &ev, sizeof ev);
+       if (len < 0 || len % sizeof e[0] != 0) {
+               /* FIXME: handle error... reopen device? */;
+               return;
+       }
+
+       e = ev;
+       end = (void *) ev + len;
+       for (e = ev; e < end; e++) {
+               /* Get the signed value, earlier kernels had this as unsigned */
+               value = e->value;
+
+               switch (e->type) {
+               case EV_REL:
+                       switch (e->code) {
+                       case REL_X:
+                               dx += value;
+                               break;
+
+                       case REL_Y:
+                               dy += value;
+                               break;
+                       }
+
+               case EV_ABS:
+                       absolute_event = 1;
+                       switch (e->code) {
+                       case ABS_X:
+                               device->x = value;
+                               break;
+                       case ABS_Y:
+                               device->y = value;
+                               break;
+                       }
+
+               case EV_KEY:
+                       if (value == 2)
+                               break;
+
+                       switch (e->code) {
+                       case BTN_TOUCH:
+                       case BTN_TOOL_PEN:
+                       case BTN_TOOL_RUBBER:
+                       case BTN_TOOL_BRUSH:
+                       case BTN_TOOL_PENCIL:
+                       case BTN_TOOL_AIRBRUSH:
+                       case BTN_TOOL_FINGER:
+                       case BTN_TOOL_MOUSE:
+                       case BTN_TOOL_LENS:
+                               device->tool = value ? e->code : 0;
+                               break;
+
+                       case BTN_LEFT:
+                               wl_display_post_button_event(device->display,
+                                                            &device->base, 0, value);
+                               break;
+
+                       case BTN_RIGHT:
+                               wl_display_post_button_event(device->display,
+                                                            &device->base, 2, value);
+                               break;
+
+                       case BTN_MIDDLE:
+                               wl_display_post_button_event(device->display,
+                                                            &device->base, 1, value);
+                               break;
+                       }
+               }
+       }
+
+       if (dx != 0 || dy != 0)
+               wl_display_post_relative_event(device->display,
+                                              &device->base, dx, dy);
+       if (absolute_event && device->tool)
+               wl_display_post_absolute_event(device->display,
+                                              &device->base,
+                                              device->x, device->y);
+}
+
+struct wl_object *
+wl_input_device_create(struct wl_display *display,
+                      const char *path, uint32_t id)
+{
+       struct wl_input_device *device;
+       struct wl_event_loop *loop;
+
+       device = malloc(sizeof *device);
+       if (device == NULL)
+               return NULL;
+
+       device->base.interface = &input_device_interface;
+       device->display = display;
+       device->tool = 1;
+
+       device->fd = open(path, O_RDONLY);
+       if (device->fd < 0) {
+               free(device);
+               fprintf(stderr, "couldn't create pointer for %s: %m\n", path);
+               return NULL;
+       }
+
+       loop = wl_display_get_event_loop(display);
+       device->source = wl_event_loop_add_fd(loop, device->fd,
+                                             WL_EVENT_READABLE,
+                                             wl_input_device_data, device);
+       if (device->source == NULL) {
+               close(device->fd);
+               free(device);
+               return NULL;
+       }
+
+       return &device->base;
+}