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authorMike Frysinger <vapier@gentoo.org>2010-06-30 01:40:52 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2010-07-03 13:13:03 -0700
commit4397c98a8a60ba029f2d0051d0cbafe600f05d8c (patch)
tree8aed8bdd4b811051fc877b1f08e7b68d343a12e4 /drivers/input/touchscreen/ad7879.h
parent7cd7a82d16ad5a711338c1baf2316f24121d93aa (diff)
Input: ad7879 - split bus logic out
The ad7879 driver is using the old bus method of only supporting one at a time (I2C or SPI). So refactor it like the other input drivers that support multiple busses simultaneously. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/touchscreen/ad7879.h')
-rw-r--r--drivers/input/touchscreen/ad7879.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/ad7879.h b/drivers/input/touchscreen/ad7879.h
new file mode 100644
index 00000000000..169f155db3b
--- /dev/null
+++ b/drivers/input/touchscreen/ad7879.h
@@ -0,0 +1,30 @@
+/*
+ * AD7879/AD7889 touchscreen (bus interfaces)
+ *
+ * Copyright (C) 2008-2010 Michael Hennerich, Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef _AD7879_H_
+#define _AD7879_H_
+
+#include <linux/types.h>
+
+struct ad7879;
+struct device;
+
+struct ad7879_bus_ops {
+ u16 bustype;
+ int (*read)(struct device *dev, u8 reg);
+ int (*multi_read)(struct device *dev, u8 first_reg, u8 count, u16 *buf);
+ int (*write)(struct device *dev, u8 reg, u16 val);
+};
+
+void ad7879_disable(struct ad7879 *);
+void ad7879_enable(struct ad7879 *);
+struct ad7879 *ad7879_probe(struct device *dev, u8 devid, unsigned irq,
+ const struct ad7879_bus_ops *bops);
+void ad7879_remove(struct ad7879 *);
+
+#endif