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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2010-12-16 20:17:48 +0300
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2010-12-16 20:17:48 +0300
commit67b989a0c17e34a7c2c095e58a2f3d1b4408e3cb (patch)
treec076d2f0b5d4ae8726a50206042d3e3a41620fe4 /include/linux/input
parent56a8bd6dcf81693e61a712097216904f3a4ab536 (diff)
parent69479f8da68f1930b2078b2ebf6533fb00339918 (diff)
downloadlinux-67b989a0c17e34a7c2c095e58a2f3d1b4408e3cb.tar.xz
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rydberg/input-mt into next
Conflicts: drivers/input/Makefile
Diffstat (limited to 'include/linux/input')
-rw-r--r--include/linux/input/mt.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/include/linux/input/mt.h b/include/linux/input/mt.h
new file mode 100644
index 000000000000..b3ac06a4435d
--- /dev/null
+++ b/include/linux/input/mt.h
@@ -0,0 +1,57 @@
+#ifndef _INPUT_MT_H
+#define _INPUT_MT_H
+
+/*
+ * Input Multitouch Library
+ *
+ * Copyright (c) 2010 Henrik Rydberg
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/input.h>
+
+#define TRKID_MAX 0xffff
+
+/**
+ * struct input_mt_slot - represents the state of an input MT slot
+ * @abs: holds current values of ABS_MT axes for this slot
+ */
+struct input_mt_slot {
+ int abs[ABS_MT_LAST - ABS_MT_FIRST + 1];
+};
+
+static inline void input_mt_set_value(struct input_mt_slot *slot,
+ unsigned code, int value)
+{
+ slot->abs[code - ABS_MT_FIRST] = value;
+}
+
+static inline int input_mt_get_value(const struct input_mt_slot *slot,
+ unsigned code)
+{
+ return slot->abs[code - ABS_MT_FIRST];
+}
+
+int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots);
+void input_mt_destroy_slots(struct input_dev *dev);
+
+static inline int input_mt_new_trkid(struct input_dev *dev)
+{
+ return dev->trkid++ & TRKID_MAX;
+}
+
+static inline void input_mt_slot(struct input_dev *dev, int slot)
+{
+ input_event(dev, EV_ABS, ABS_MT_SLOT, slot);
+}
+
+void input_mt_report_slot_state(struct input_dev *dev,
+ unsigned int tool_type, bool active);
+
+void input_mt_report_finger_count(struct input_dev *dev, int count);
+void input_mt_report_pointer_emulation(struct input_dev *dev, bool use_count);
+
+#endif