From ec11ec9c7c2656fa2ea1b6eb5f0175e4e3f94f61 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Kristian=20H=C3=B8gsberg?= <krh@redhat.com>
Date: Mon, 24 Nov 2008 00:12:20 -0500
Subject: [PATCH] Rename input.c to evdev.c.

---
 evdev.c | 151 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 151 insertions(+)
 create mode 100644 evdev.c

diff --git a/evdev.c b/evdev.c
new file mode 100644
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;
+}
-- 
2.7.4