pad: implement wacom pad support

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jason Gerecke <jason.gerecke@wacom.com>
Reviewed-by: Carlos Garnacho <carlosg@gnome.org>

1 files changed, 69 insertions, 0 deletions

diff --git a/src/evdev-tablet-pad.h b/src/evdev-tablet-pad.h
new file mode 100644
index 00000000..828ded8f
--- /dev/null
+++ b/src/evdev-tablet-pad.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright © 2015 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 the copyright holders not be used in
+ * advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission.  The copyright holders make
+ * no representations about the suitability of this software for any
+ * purpose.  It is provided "as is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS 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.
+ */
+
+#ifndef EVDEV_BUTTONSET_WACOM_H
+#define EVDEV_BUTTONSET_WACOM_H
+
+#include "evdev.h"
+
+#define LIBINPUT_BUTTONSET_AXIS_NONE 0
+
+enum pad_status {
+	PAD_NONE = 0,
+	PAD_AXES_UPDATED = 1 << 0,
+	PAD_BUTTONS_PRESSED = 1 << 1,
+	PAD_BUTTONS_RELEASED = 1 << 2,
+};
+
+enum pad_axes {
+	PAD_AXIS_NONE = 0,
+	PAD_AXIS_RING1 = 1 << 0,
+	PAD_AXIS_RING2 = 1 << 1,
+	PAD_AXIS_STRIP1 = 1 << 2,
+	PAD_AXIS_STRIP2 = 1 << 3,
+};
+
+struct button_state {
+	unsigned char bits[NCHARS(KEY_CNT)];
+};
+
+struct pad_dispatch {
+	struct evdev_dispatch base;
+	struct evdev_device *device;
+	unsigned char status;
+	uint32_t changed_axes;
+
+	struct button_state button_state;
+	struct button_state prev_button_state;
+
+	char button_map[KEY_CNT];
+	unsigned int nbuttons;
+
+	bool have_abs_misc_terminator;
+
+	struct {
+		struct libinput_device_config_send_events config;
+		enum libinput_config_send_events_mode current_mode;
+	} sendevents;
+};
+
+#endif