Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 59 insertions, 0 deletions

diff --git a/include/linux/input/sparse-keymap.h b/include/linux/input/sparse-keymap.h
new file mode 100644
index 000000000..d0dddc14e
--- /dev/null
+++ b/include/linux/input/sparse-keymap.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef _SPARSE_KEYMAP_H
+#define _SPARSE_KEYMAP_H
+
+/*
+ * Copyright (c) 2009 Dmitry Torokhov
+ */
+
+#define KE_END		0	/* Indicates end of keymap */
+#define KE_KEY		1	/* Ordinary key/button */
+#define KE_SW		2	/* Switch (predetermined value) */
+#define KE_VSW		3	/* Switch (value supplied at runtime) */
+#define KE_IGNORE	4	/* Known entry that should be ignored */
+#define KE_LAST		KE_IGNORE
+
+/**
+ * struct key_entry - keymap entry for use in sparse keymap
+ * @type: Type of the key entry (KE_KEY, KE_SW, KE_VSW, KE_END);
+ *	drivers are allowed to extend the list with their own
+ *	private definitions.
+ * @code: Device-specific data identifying the button/switch
+ * @keycode: KEY_* code assigned to a key/button
+ * @sw: struct with code/value used by KE_SW and KE_VSW
+ * @sw.code: SW_* code assigned to a switch
+ * @sw.value: Value that should be sent in an input even when KE_SW
+ *	switch is toggled. KE_VSW switches ignore this field and
+ *	expect driver to supply value for the event.
+ *
+ * This structure defines an entry in a sparse keymap used by some
+ * input devices for which traditional table-based approach is not
+ * suitable.
+ */
+struct key_entry {
+	int type;		/* See KE_* above */
+	u32 code;
+	union {
+		u16 keycode;		/* For KE_KEY */
+		struct {		/* For KE_SW, KE_VSW */
+			u8 code;
+			u8 value;	/* For KE_SW, ignored by KE_VSW */
+		} sw;
+	};
+};
+
+struct key_entry *sparse_keymap_entry_from_scancode(struct input_dev *dev,
+						    unsigned int code);
+struct key_entry *sparse_keymap_entry_from_keycode(struct input_dev *dev,
+						   unsigned int code);
+int sparse_keymap_setup(struct input_dev *dev,
+			const struct key_entry *keymap,
+			int (*setup)(struct input_dev *, struct key_entry *));
+
+void sparse_keymap_report_entry(struct input_dev *dev, const struct key_entry *ke,
+				unsigned int value, bool autorelease);
+
+bool sparse_keymap_report_event(struct input_dev *dev, unsigned int code,
+				unsigned int value, bool autorelease);
+
+#endif /* _SPARSE_KEYMAP_H */