Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (29 commits)
  Input: i8042 - add Dell Vostro 1510 to nomux list
  Input: gtco - use USB endpoint API
  Input: add support for Maple controller as a joystick
  Input: atkbd - broaden the Dell DMI signatures
  Input: HIL drivers - add MODULE_ALIAS()
  Input: map_to_7segment.h - convert to __inline__ for userspace
  Input: add support for enhanced rotary controller on pxa930 and pxa935
  Input: add support for trackball on pxa930 and pxa935
  Input: add da9034 touchscreen support
  Input: ads7846 - strict_strtoul takes unsigned long
  Input: make some variables and functions static
  Input: add tsc2007 based touchscreen driver
  Input: psmouse - add module parameters to control OLPC touchpad delays
  Input: i8042 - add Gigabyte M912 netbook to noloop exception table
  Input: atkbd - Samsung NC10 key repeat fix
  Input: atkbd - add keyboard quirk for HP Pavilion ZV6100 laptop
  Input: libps2 - handle 0xfc responses from devices
  Input: add support for Wacom W8001 penabled serial touchscreen
  Input: synaptics - report multi-taps only if supported by the device
  Input: add joystick driver for Walkera WK-0701 RC transmitter
  ...

drivers/input/Makefile

@@ -5,7 +5,7 @@
 # Each configuration option enables a list of files.
 
 obj-$(CONFIG_INPUT)		+= input-core.o
-input-core-objs := input.o ff-core.o
+input-core-objs := input.o input-compat.o ff-core.o
 
 obj-$(CONFIG_INPUT_FF_MEMLESS)	+= ff-memless.o
 obj-$(CONFIG_INPUT_POLLDEV)	+= input-polldev.o

drivers/input/evbug.c

@@ -39,7 +39,7 @@ MODULE_LICENSE("GPL");
 static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
 {
 	printk(KERN_DEBUG "evbug.c: Event. Dev: %s, Type: %d, Code: %d, Value: %d\n",
-		handle->dev->dev.bus_id, type, code, value);
+		dev_name(&handle->dev->dev), type, code, value);
 }
 
 static int evbug_connect(struct input_handler *handler, struct input_dev *dev,
@@ -65,7 +65,7 @@ static int evbug_connect(struct input_handler *handler, struct input_dev *dev,
 		goto err_unregister_handle;
 
 	printk(KERN_DEBUG "evbug.c: Connected device: %s (%s at %s)\n",
-		dev->dev.bus_id,
+		dev_name(&dev->dev),
 		dev->name ?: "unknown",
 		dev->phys ?: "unknown");
 
@@ -81,7 +81,7 @@ static int evbug_connect(struct input_handler *handler, struct input_dev *dev,
 static void evbug_disconnect(struct input_handle *handle)
 {
 	printk(KERN_DEBUG "evbug.c: Disconnected device: %s\n",
-		handle->dev->dev.bus_id);
+		dev_name(&handle->dev->dev));
 
 	input_close_device(handle);
 	input_unregister_handle(handle);

drivers/input/evdev.c

@@ -19,7 +19,7 @@
 #include <linux/input.h>
 #include <linux/major.h>
 #include <linux/device.h>
-#include <linux/compat.h>
+#include "input-compat.h"
 
 struct evdev {
 	int exist;
@@ -290,187 +290,6 @@ static int evdev_open(struct inode *inode, struct file *file)
 	return error;
 }
 
-#ifdef CONFIG_COMPAT
-
-struct input_event_compat {
-	struct compat_timeval time;
-	__u16 type;
-	__u16 code;
-	__s32 value;
-};
-
-struct ff_periodic_effect_compat {
-	__u16 waveform;
-	__u16 period;
-	__s16 magnitude;
-	__s16 offset;
-	__u16 phase;
-
-	struct ff_envelope envelope;
-
-	__u32 custom_len;
-	compat_uptr_t custom_data;
-};
-
-struct ff_effect_compat {
-	__u16 type;
-	__s16 id;
-	__u16 direction;
-	struct ff_trigger trigger;
-	struct ff_replay replay;
-
-	union {
-		struct ff_constant_effect constant;
-		struct ff_ramp_effect ramp;
-		struct ff_periodic_effect_compat periodic;
-		struct ff_condition_effect condition[2]; /* One for each axis */
-		struct ff_rumble_effect rumble;
-	} u;
-};
-
-/* Note to the author of this code: did it ever occur to
-   you why the ifdefs are needed? Think about it again. -AK */
-#ifdef CONFIG_X86_64
-#  define COMPAT_TEST is_compat_task()
-#elif defined(CONFIG_IA64)
-#  define COMPAT_TEST IS_IA32_PROCESS(task_pt_regs(current))
-#elif defined(CONFIG_S390)
-#  define COMPAT_TEST test_thread_flag(TIF_31BIT)
-#elif defined(CONFIG_MIPS)
-#  define COMPAT_TEST test_thread_flag(TIF_32BIT_ADDR)
-#else
-#  define COMPAT_TEST test_thread_flag(TIF_32BIT)
-#endif
-
-static inline size_t evdev_event_size(void)
-{
-	return COMPAT_TEST ?
-		sizeof(struct input_event_compat) : sizeof(struct input_event);
-}
-
-static int evdev_event_from_user(const char __user *buffer,
-				 struct input_event *event)
-{
-	if (COMPAT_TEST) {
-		struct input_event_compat compat_event;
-
-		if (copy_from_user(&compat_event, buffer,
-				   sizeof(struct input_event_compat)))
-			return -EFAULT;
-
-		event->time.tv_sec = compat_event.time.tv_sec;
-		event->time.tv_usec = compat_event.time.tv_usec;
-		event->type = compat_event.type;
-		event->code = compat_event.code;
-		event->value = compat_event.value;
-
-	} else {
-		if (copy_from_user(event, buffer, sizeof(struct input_event)))
-			return -EFAULT;
-	}
-
-	return 0;
-}
-
-static int evdev_event_to_user(char __user *buffer,
-				const struct input_event *event)
-{
-	if (COMPAT_TEST) {
-		struct input_event_compat compat_event;
-
-		compat_event.time.tv_sec = event->time.tv_sec;
-		compat_event.time.tv_usec = event->time.tv_usec;
-		compat_event.type = event->type;
-		compat_event.code = event->code;
-		compat_event.value = event->value;
-
-		if (copy_to_user(buffer, &compat_event,
-				 sizeof(struct input_event_compat)))
-			return -EFAULT;
-
-	} else {
-		if (copy_to_user(buffer, event, sizeof(struct input_event)))
-			return -EFAULT;
-	}
-
-	return 0;
-}
-
-static int evdev_ff_effect_from_user(const char __user *buffer, size_t size,
-				     struct ff_effect *effect)
-{
-	if (COMPAT_TEST) {
-		struct ff_effect_compat *compat_effect;
-
-		if (size != sizeof(struct ff_effect_compat))
-			return -EINVAL;
-
-		/*
-		 * It so happens that the pointer which needs to be changed
-		 * is the last field in the structure, so we can copy the
-		 * whole thing and replace just the pointer.
-		 */
-
-		compat_effect = (struct ff_effect_compat *)effect;
-
-		if (copy_from_user(compat_effect, buffer,
-				   sizeof(struct ff_effect_compat)))
-			return -EFAULT;
-
-		if (compat_effect->type == FF_PERIODIC &&
-		    compat_effect->u.periodic.waveform == FF_CUSTOM)
-			effect->u.periodic.custom_data =
-				compat_ptr(compat_effect->u.periodic.custom_data);
-	} else {
-		if (size != sizeof(struct ff_effect))
-			return -EINVAL;
-
-		if (copy_from_user(effect, buffer, sizeof(struct ff_effect)))
-			return -EFAULT;
-	}
-
-	return 0;
-}
-
-#else
-
-static inline size_t evdev_event_size(void)
-{
-	return sizeof(struct input_event);
-}
-
-static int evdev_event_from_user(const char __user *buffer,
-				 struct input_event *event)
-{
-	if (copy_from_user(event, buffer, sizeof(struct input_event)))
-		return -EFAULT;
-
-	return 0;
-}
-
-static int evdev_event_to_user(char __user *buffer,
-				const struct input_event *event)
-{
-	if (copy_to_user(buffer, event, sizeof(struct input_event)))
-		return -EFAULT;
-
-	return 0;
-}
-
-static int evdev_ff_effect_from_user(const char __user *buffer, size_t size,
-				     struct ff_effect *effect)
-{
-	if (size != sizeof(struct ff_effect))
-		return -EINVAL;
-
-	if (copy_from_user(effect, buffer, sizeof(struct ff_effect)))
-		return -EFAULT;
-
-	return 0;
-}
-
-#endif /* CONFIG_COMPAT */
-
 static ssize_t evdev_write(struct file *file, const char __user *buffer,
 			   size_t count, loff_t *ppos)
 {
@@ -490,14 +309,14 @@ static ssize_t evdev_write(struct file *file, const char __user *buffer,
 
 	while (retval < count) {
 
-		if (evdev_event_from_user(buffer + retval, &event)) {
+		if (input_event_from_user(buffer + retval, &event)) {
 			retval = -EFAULT;
 			goto out;
 		}
 
 		input_inject_event(&evdev->handle,
 				   event.type, event.code, event.value);
-		retval += evdev_event_size();
+		retval += input_event_size();
 	}
 
  out:
@@ -531,7 +350,7 @@ static ssize_t evdev_read(struct file *file, char __user *buffer,
 	struct input_event event;
 	int retval;
 
-	if (count < evdev_event_size())
+	if (count < input_event_size())
 		return -EINVAL;
 
 	if (client->head == client->tail && evdev->exist &&
@@ -546,13 +365,13 @@ static ssize_t evdev_read(struct file *file, char __user *buffer,
 	if (!evdev->exist)
 		return -ENODEV;
 
-	while (retval + evdev_event_size() <= count &&
+	while (retval + input_event_size() <= count &&
 	       evdev_fetch_next_event(client, &event)) {
 
-		if (evdev_event_to_user(buffer + retval, &event))
+		if (input_event_to_user(buffer + retval, &event))
 			return -EFAULT;
 
-		retval += evdev_event_size();
+		retval += input_event_size();
 	}
 
 	return retval;
@@ -823,7 +642,7 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
 
 			if (_IOC_NR(cmd) == _IOC_NR(EVIOCSFF)) {
 
-				if (evdev_ff_effect_from_user(p, _IOC_SIZE(cmd), &effect))
+				if (input_ff_effect_from_user(p, _IOC_SIZE(cmd), &effect))
 					return -EFAULT;
 
 				error = input_ff_upload(dev, &effect, file);
@@ -1000,7 +819,7 @@ static int evdev_connect(struct input_handler *handler, struct input_dev *dev,
 	evdev->handle.handler = handler;
 	evdev->handle.private = evdev;
 
-	strlcpy(evdev->dev.bus_id, evdev->name, sizeof(evdev->dev.bus_id));
+	dev_set_name(&evdev->dev, evdev->name);
 	evdev->dev.devt = MKDEV(INPUT_MAJOR, EVDEV_MINOR_BASE + minor);
 	evdev->dev.class = &input_class;
 	evdev->dev.parent = &dev->dev;

drivers/input/gameport/gameport.c

@@ -530,8 +530,7 @@ static void gameport_init_port(struct gameport *gameport)
 
 	mutex_init(&gameport->drv_mutex);
 	device_initialize(&gameport->dev);
-	snprintf(gameport->dev.bus_id, sizeof(gameport->dev.bus_id),
-		 "gameport%lu", (unsigned long)atomic_inc_return(&gameport_no) - 1);
+	dev_set_name(&gameport->dev, "gameport%lu", (unsigned long)atomic_inc_return(&gameport_no) - 1);
 	gameport->dev.bus = &gameport_bus;
 	gameport->dev.release = gameport_release_port;
 	if (gameport->parent)

drivers/input/gameport/ns558.c

@@ -226,7 +226,7 @@ static int ns558_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
 	ns558->gameport = port;
 
 	gameport_set_name(port, "NS558 PnP Gameport");
-	gameport_set_phys(port, "pnp%s/gameport0", dev->dev.bus_id);
+	gameport_set_phys(port, "pnp%s/gameport0", dev_name(&dev->dev));
 	port->dev.parent = &dev->dev;
 	port->io = ioport;
 

drivers/input/input-compat.c

@@ -0,0 +1,135 @@
+/*
+ * 32bit compatibility wrappers for the input subsystem.
+ *
+ * Very heavily based on evdev.c - Copyright (c) 1999-2002 Vojtech Pavlik
+ *
+ * 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 <asm/uaccess.h>
+#include "input-compat.h"
+
+#ifdef CONFIG_COMPAT
+
+int input_event_from_user(const char __user *buffer,
+			  struct input_event *event)
+{
+	if (INPUT_COMPAT_TEST) {
+		struct input_event_compat compat_event;
+
+		if (copy_from_user(&compat_event, buffer,
+				   sizeof(struct input_event_compat)))
+			return -EFAULT;
+
+		event->time.tv_sec = compat_event.time.tv_sec;
+		event->time.tv_usec = compat_event.time.tv_usec;
+		event->type = compat_event.type;
+		event->code = compat_event.code;
+		event->value = compat_event.value;
+
+	} else {
+		if (copy_from_user(event, buffer, sizeof(struct input_event)))
+			return -EFAULT;
+	}
+
+	return 0;
+}
+
+int input_event_to_user(char __user *buffer,
+			const struct input_event *event)
+{
+	if (INPUT_COMPAT_TEST) {
+		struct input_event_compat compat_event;
+
+		compat_event.time.tv_sec = event->time.tv_sec;
+		compat_event.time.tv_usec = event->time.tv_usec;
+		compat_event.type = event->type;
+		compat_event.code = event->code;
+		compat_event.value = event->value;
+
+		if (copy_to_user(buffer, &compat_event,
+				 sizeof(struct input_event_compat)))
+			return -EFAULT;
+
+	} else {
+		if (copy_to_user(buffer, event, sizeof(struct input_event)))
+			return -EFAULT;
+	}
+
+	return 0;
+}
+
+int input_ff_effect_from_user(const char __user *buffer, size_t size,
+			      struct ff_effect *effect)
+{
+	if (INPUT_COMPAT_TEST) {
+		struct ff_effect_compat *compat_effect;
+
+		if (size != sizeof(struct ff_effect_compat))
+			return -EINVAL;
+
+		/*
+		 * It so happens that the pointer which needs to be changed
+		 * is the last field in the structure, so we can retrieve the
+		 * whole thing and replace just the pointer.
+		 */
+		compat_effect = (struct ff_effect_compat *)effect;
+
+		if (copy_from_user(compat_effect, buffer,
+				   sizeof(struct ff_effect_compat)))
+			return -EFAULT;
+
+		if (compat_effect->type == FF_PERIODIC &&
+		    compat_effect->u.periodic.waveform == FF_CUSTOM)
+			effect->u.periodic.custom_data =
+				compat_ptr(compat_effect->u.periodic.custom_data);
+	} else {
+		if (size != sizeof(struct ff_effect))
+			return -EINVAL;
+
+		if (copy_from_user(effect, buffer, sizeof(struct ff_effect)))
+			return -EFAULT;
+	}
+
+	return 0;
+}
+
+#else
+
+int input_event_from_user(const char __user *buffer,
+			 struct input_event *event)
+{
+	if (copy_from_user(event, buffer, sizeof(struct input_event)))
+		return -EFAULT;
+
+	return 0;
+}
+
+int input_event_to_user(char __user *buffer,
+			const struct input_event *event)
+{
+	if (copy_to_user(buffer, event, sizeof(struct input_event)))
+		return -EFAULT;
+
+	return 0;
+}
+
+int input_ff_effect_from_user(const char __user *buffer, size_t size,
+			      struct ff_effect *effect)
+{
+	if (size != sizeof(struct ff_effect))
+		return -EINVAL;
+
+	if (copy_from_user(effect, buffer, sizeof(struct ff_effect)))
+		return -EFAULT;
+
+	return 0;
+}
+
+#endif /* CONFIG_COMPAT */
+
+EXPORT_SYMBOL_GPL(input_event_from_user);
+EXPORT_SYMBOL_GPL(input_event_to_user);
+EXPORT_SYMBOL_GPL(input_ff_effect_from_user);

drivers/input/input-compat.h

@@ -0,0 +1,94 @@
+#ifndef _INPUT_COMPAT_H
+#define _INPUT_COMPAT_H
+
+/*
+ * 32bit compatibility wrappers for the input subsystem.
+ *
+ * Very heavily based on evdev.c - Copyright (c) 1999-2002 Vojtech Pavlik
+ *
+ * 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/compiler.h>
+#include <linux/compat.h>
+#include <linux/input.h>
+
+#ifdef CONFIG_COMPAT
+
+/* Note to the author of this code: did it ever occur to
+   you why the ifdefs are needed? Think about it again. -AK */
+#ifdef CONFIG_X86_64
+#  define INPUT_COMPAT_TEST is_compat_task()
+#elif defined(CONFIG_IA64)
+#  define INPUT_COMPAT_TEST IS_IA32_PROCESS(task_pt_regs(current))
+#elif defined(CONFIG_S390)
+#  define INPUT_COMPAT_TEST test_thread_flag(TIF_31BIT)
+#elif defined(CONFIG_MIPS)
+#  define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT_ADDR)
+#else
+#  define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT)
+#endif
+
+struct input_event_compat {
+	struct compat_timeval time;
+	__u16 type;
+	__u16 code;
+	__s32 value;
+};
+
+struct ff_periodic_effect_compat {
+	__u16 waveform;
+	__u16 period;
+	__s16 magnitude;
+	__s16 offset;
+	__u16 phase;
+
+	struct ff_envelope envelope;
+
+	__u32 custom_len;
+	compat_uptr_t custom_data;
+};
+
+struct ff_effect_compat {
+	__u16 type;
+	__s16 id;
+	__u16 direction;
+	struct ff_trigger trigger;
+	struct ff_replay replay;
+
+	union {
+		struct ff_constant_effect constant;
+		struct ff_ramp_effect ramp;
+		struct ff_periodic_effect_compat periodic;
+		struct ff_condition_effect condition[2]; /* One for each axis */
+		struct ff_rumble_effect rumble;
+	} u;
+};
+
+static inline size_t input_event_size(void)
+{
+	return INPUT_COMPAT_TEST ?
+		sizeof(struct input_event_compat) : sizeof(struct input_event);
+}
+
+#else
+
+static inline size_t input_event_size(void)
+{
+	return sizeof(struct input_event);
+}
+
+#endif /* CONFIG_COMPAT */
+
+int input_event_from_user(const char __user *buffer,
+			 struct input_event *event);
+
+int input_event_to_user(char __user *buffer,
+			const struct input_event *event);
+
+int input_ff_effect_from_user(const char __user *buffer, size_t size,
+			      struct ff_effect *effect);
+
+#endif /* _INPUT_COMPAT_H */

drivers/input/input.c

@@ -1389,8 +1389,8 @@ int input_register_device(struct input_dev *dev)
 	if (!dev->setkeycode)
 		dev->setkeycode = input_default_setkeycode;
 
-	snprintf(dev->dev.bus_id, sizeof(dev->dev.bus_id),
-		 "input%ld", (unsigned long) atomic_inc_return(&input_no) - 1);
+	dev_set_name(&dev->dev, "input%ld",
+		     (unsigned long) atomic_inc_return(&input_no) - 1);
 
 	error = device_add(&dev->dev);
 	if (error)

drivers/input/joydev.c

@@ -800,7 +800,7 @@ static int joydev_connect(struct input_handler *handler, struct input_dev *dev,
 		}
 	}
 
-	strlcpy(joydev->dev.bus_id, joydev->name, sizeof(joydev->dev.bus_id));
+	dev_set_name(&joydev->dev, joydev->name);
 	joydev->dev.devt = MKDEV(INPUT_MAJOR, JOYDEV_MINOR_BASE + minor);
 	joydev->dev.class = &input_class;
 	joydev->dev.parent = &dev->dev;

drivers/input/joystick/Kconfig

@@ -294,4 +294,28 @@ config JOYSTICK_XPAD_LEDS
 	  This option enables support for the LED which surrounds the Big X on
 	  XBox 360 controller.
 
+config JOYSTICK_WALKERA0701
+	tristate "Walkera WK-0701 RC transmitter"
+	depends on HIGH_RES_TIMERS && PARPORT
+	help
+	  Say Y or M here if you have a Walkera WK-0701 transmitter which is
+	  supplied with a ready to fly Walkera helicopters such as HM36,
+	  HM37, HM60 and want to use it via parport as a joystick. More
+	  information is available: <file:Documentation/input/walkera0701.txt>
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called walkera0701.
+
+config JOYSTICK_MAPLE
+	tristate "Dreamcast control pad"
+	depends on MAPLE
+	help
+	  Say Y here if you have a SEGA Dreamcast and want to use your
+	  controller as a joystick.
+
+	  Most Dreamcast users will say Y.
+
+	  To compile this as a module choose M here: the module will be called
+	  maplecontrol.
+
 endif

drivers/input/joystick/Makefile

@@ -19,6 +19,7 @@ obj-$(CONFIG_JOYSTICK_IFORCE)		+= iforce/
 obj-$(CONFIG_JOYSTICK_INTERACT)		+= interact.o
 obj-$(CONFIG_JOYSTICK_JOYDUMP)		+= joydump.o
 obj-$(CONFIG_JOYSTICK_MAGELLAN)		+= magellan.o
+obj-$(CONFIG_JOYSTICK_MAPLE)		+= maplecontrol.o
 obj-$(CONFIG_JOYSTICK_SIDEWINDER)	+= sidewinder.o
 obj-$(CONFIG_JOYSTICK_SPACEBALL)	+= spaceball.o
 obj-$(CONFIG_JOYSTICK_SPACEORB)		+= spaceorb.o
@@ -29,4 +30,5 @@ obj-$(CONFIG_JOYSTICK_TWIDJOY)		+= twidjoy.o
 obj-$(CONFIG_JOYSTICK_WARRIOR)		+= warrior.o
 obj-$(CONFIG_JOYSTICK_XPAD)		+= xpad.o
 obj-$(CONFIG_JOYSTICK_ZHENHUA)		+= zhenhua.o
+obj-$(CONFIG_JOYSTICK_WALKERA0701)	+= walkera0701.o
 

drivers/input/joystick/maplecontrol.c

@@ -0,0 +1,193 @@
+/*
+ *	SEGA Dreamcast controller driver
+ *	Based on drivers/usb/iforce.c
+ *
+ *	Copyright Yaegashi Takeshi, 2001
+ *	Adrian McMenamin, 2008
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/timer.h>
+#include <linux/maple.h>
+
+MODULE_AUTHOR("Adrian McMenamin <adrian@mcmen.demon.co.uk>");
+MODULE_DESCRIPTION("SEGA Dreamcast controller driver");
+MODULE_LICENSE("GPL");
+
+struct dc_pad {
+	struct input_dev *dev;
+	struct maple_device *mdev;
+};
+
+static void dc_pad_callback(struct mapleq *mq)
+{
+	unsigned short buttons;
+	struct maple_device *mapledev = mq->dev;
+	struct dc_pad *pad = maple_get_drvdata(mapledev);
+	struct input_dev *dev = pad->dev;
+	unsigned char *res = mq->recvbuf;
+
+	buttons = ~le16_to_cpup((__le16 *)(res + 8));
+
+	input_report_abs(dev, ABS_HAT0Y,
+		(buttons & 0x0010 ? -1 : 0) + (buttons & 0x0020 ? 1 : 0));
+	input_report_abs(dev, ABS_HAT0X,
+		(buttons & 0x0040 ? -1 : 0) + (buttons & 0x0080 ? 1 : 0));
+	input_report_abs(dev, ABS_HAT1Y,
+		(buttons & 0x1000 ? -1 : 0) + (buttons & 0x2000 ? 1 : 0));
+	input_report_abs(dev, ABS_HAT1X,
+		(buttons & 0x4000 ? -1 : 0) + (buttons & 0x8000 ? 1 : 0));
+
+	input_report_key(dev, BTN_C,      buttons & 0x0001);
+	input_report_key(dev, BTN_B,      buttons & 0x0002);
+	input_report_key(dev, BTN_A,      buttons & 0x0004);
+	input_report_key(dev, BTN_START,  buttons & 0x0008);
+	input_report_key(dev, BTN_Z,      buttons & 0x0100);
+	input_report_key(dev, BTN_Y,      buttons & 0x0200);
+	input_report_key(dev, BTN_X,      buttons & 0x0400);
+	input_report_key(dev, BTN_SELECT, buttons & 0x0800);
+
+	input_report_abs(dev, ABS_GAS,    res[10]);
+	input_report_abs(dev, ABS_BRAKE,  res[11]);
+	input_report_abs(dev, ABS_X,      res[12]);
+	input_report_abs(dev, ABS_Y,      res[13]);
+	input_report_abs(dev, ABS_RX,     res[14]);
+	input_report_abs(dev, ABS_RY,     res[15]);
+}
+
+static int dc_pad_open(struct input_dev *dev)
+{
+	struct dc_pad *pad = dev->dev.platform_data;
+
+	maple_getcond_callback(pad->mdev, dc_pad_callback, HZ/20,
+		MAPLE_FUNC_CONTROLLER);
+
+	return 0;
+}
+
+static void dc_pad_close(struct input_dev *dev)
+{
+	struct dc_pad *pad = dev->dev.platform_data;
+
+	maple_getcond_callback(pad->mdev, dc_pad_callback, 0,
+		MAPLE_FUNC_CONTROLLER);
+}
+
+/* allow the controller to be used */
+static int __devinit probe_maple_controller(struct device *dev)
+{
+	static const short btn_bit[32] = {
+		BTN_C, BTN_B, BTN_A, BTN_START, -1, -1, -1, -1,
+		BTN_Z, BTN_Y, BTN_X, BTN_SELECT, -1, -1, -1, -1,
+		-1, -1, -1, -1, -1, -1, -1, -1,
+		-1, -1, -1, -1, -1, -1, -1, -1,
+	};
+
+	static const short abs_bit[32] = {
+		-1, -1, -1, -1, ABS_HAT0Y, ABS_HAT0Y, ABS_HAT0X, ABS_HAT0X,
+		-1, -1, -1, -1, ABS_HAT1Y, ABS_HAT1Y, ABS_HAT1X, ABS_HAT1X,
+		ABS_GAS, ABS_BRAKE, ABS_X, ABS_Y, ABS_RX, ABS_RY, -1, -1,
+		-1, -1, -1, -1, -1, -1, -1, -1,
+	};
+
+	struct maple_device *mdev = to_maple_dev(dev);
+	struct maple_driver *mdrv = to_maple_driver(dev->driver);
+	int i, error;
+	struct dc_pad *pad;
+	struct input_dev *idev;
+	unsigned long data = be32_to_cpu(mdev->devinfo.function_data[0]);
+
+	pad = kzalloc(sizeof(struct dc_pad), GFP_KERNEL);
+	idev = input_allocate_device();
+	if (!pad || !idev) {
+		error = -ENOMEM;
+		goto fail;
+	}
+
+	pad->dev = idev;
+	pad->mdev = mdev;
+
+	idev->open = dc_pad_open;
+	idev->close = dc_pad_close;
+
+	for (i = 0; i < 32; i++) {
+		if (data & (1 << i)) {
+			if (btn_bit[i] >= 0)
+				__set_bit(btn_bit[i], idev->keybit);
+			else if (abs_bit[i] >= 0)
+				__set_bit(abs_bit[i], idev->absbit);
+		}
+	}
+
+	if (idev->keybit[BIT_WORD(BTN_JOYSTICK)])
+		idev->evbit[0] |= BIT_MASK(EV_KEY);
+
+	if (idev->absbit[0])
+		idev->evbit[0] |= BIT_MASK(EV_ABS);
+
+	for (i = ABS_X; i <= ABS_BRAKE; i++)
+		input_set_abs_params(idev, i, 0, 255, 0, 0);
+
+	for (i = ABS_HAT0X; i <= ABS_HAT3Y; i++)
+		input_set_abs_params(idev, i, 1, -1, 0, 0);
+
+	idev->dev.platform_data = pad;
+	idev->dev.parent = &mdev->dev;
+	idev->name = mdev->product_name;
+	idev->id.bustype = BUS_HOST;
+	input_set_drvdata(idev, pad);
+
+	error = input_register_device(idev);
+	if (error)
+		goto fail;
+
+	mdev->driver = mdrv;
+	maple_set_drvdata(mdev, pad);
+
+	return 0;
+
+fail:
+	input_free_device(idev);
+	kfree(pad);
+	maple_set_drvdata(mdev, NULL);
+	return error;
+}
+
+static int __devexit remove_maple_controller(struct device *dev)
+{
+	struct maple_device *mdev = to_maple_dev(dev);
+	struct dc_pad *pad = maple_get_drvdata(mdev);
+
+	mdev->callback = NULL;
+	input_unregister_device(pad->dev);
+	maple_set_drvdata(mdev, NULL);
+	kfree(pad);
+
+	return 0;
+}
+
+static struct maple_driver dc_pad_driver = {
+	.function =	MAPLE_FUNC_CONTROLLER,
+	.drv = {
+		.name	= "Dreamcast_controller",
+		.probe	= probe_maple_controller,
+		.remove	= __devexit_p(remove_maple_controller),
+	},
+};
+
+static int __init dc_pad_init(void)
+{
+	return maple_driver_register(&dc_pad_driver);
+}
+
+static void __exit dc_pad_exit(void)
+{
+	maple_driver_unregister(&dc_pad_driver);
+}
+
+module_init(dc_pad_init);
+module_exit(dc_pad_exit);

drivers/input/joystick/walkera0701.c

@@ -0,0 +1,292 @@
+/*
+ *  Parallel port to Walkera WK-0701 TX joystick
+ *
+ *  Copyright (c) 2008 Peter Popovec
+ *
+ *  More about driver:  <file:Documentation/input/walkera0701.txt>
+ */
+
+/*
+ * 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.
+*/
+
+/* #define WK0701_DEBUG */
+
+#define RESERVE 20000
+#define SYNC_PULSE 1306000
+#define BIN0_PULSE 288000
+#define BIN1_PULSE 438000
+
+#define ANALOG_MIN_PULSE 318000
+#define ANALOG_MAX_PULSE 878000
+#define ANALOG_DELTA 80000
+
+#define BIN_SAMPLE ((BIN0_PULSE + BIN1_PULSE) / 2)
+
+#define NO_SYNC 25
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/parport.h>
+#include <linux/input.h>
+#include <linux/hrtimer.h>
+
+MODULE_AUTHOR("Peter Popovec <popovec@fei.tuke.sk>");
+MODULE_DESCRIPTION("Walkera WK-0701 TX as joystick");
+MODULE_LICENSE("GPL");
+
+static unsigned int walkera0701_pp_no;
+module_param_named(port, walkera0701_pp_no, int, 0);
+MODULE_PARM_DESC(port,
+		 "Parallel port adapter for Walkera WK-0701 TX (default is 0)");
+
+/*
+ * For now, only one device is supported, if somebody need more devices, code
+ * can be expanded, one struct walkera_dev per device must be allocated and
+ * set up by walkera0701_connect (release of device by walkera0701_disconnect)
+ */
+
+struct walkera_dev {
+	unsigned char buf[25];
+	u64 irq_time, irq_lasttime;
+	int counter;
+	int ack;
+
+	struct input_dev *input_dev;
+	struct hrtimer timer;
+
+	struct parport *parport;
+	struct pardevice *pardevice;
+};
+
+static struct walkera_dev w_dev;
+
+static inline void walkera0701_parse_frame(struct walkera_dev *w)
+{
+	int i;
+	int val1, val2, val3, val4, val5, val6, val7, val8;
+	int crc1, crc2;
+
+	for (crc1 = crc2 = i = 0; i < 10; i++) {
+		crc1 += w->buf[i] & 7;
+		crc2 += (w->buf[i] & 8) >> 3;
+	}
+	if ((w->buf[10] & 7) != (crc1 & 7))
+		return;
+	if (((w->buf[10] & 8) >> 3) != (((crc1 >> 3) + crc2) & 1))
+		return;
+	for (crc1 = crc2 = 0, i = 11; i < 23; i++) {
+		crc1 += w->buf[i] & 7;
+		crc2 += (w->buf[i] & 8) >> 3;
+	}
+	if ((w->buf[23] & 7) != (crc1 & 7))
+		return;
+	if (((w->buf[23] & 8) >> 3) != (((crc1 >> 3) + crc2) & 1))
+		return;
+	val1 = ((w->buf[0] & 7) * 256 + w->buf[1] * 16 + w->buf[2]) >> 2;
+	val1 *= ((w->buf[0] >> 2) & 2) - 1;	/* sign */
+	val2 = (w->buf[2] & 1) << 8 | (w->buf[3] << 4) | w->buf[4];
+	val2 *= (w->buf[2] & 2) - 1;	/* sign */
+	val3 = ((w->buf[5] & 7) * 256 + w->buf[6] * 16 + w->buf[7]) >> 2;
+	val3 *= ((w->buf[5] >> 2) & 2) - 1;	/* sign */
+	val4 = (w->buf[7] & 1) << 8 | (w->buf[8] << 4) | w->buf[9];
+	val4 *= (w->buf[7] & 2) - 1;	/* sign */
+	val5 = ((w->buf[11] & 7) * 256 + w->buf[12] * 16 + w->buf[13]) >> 2;
+	val5 *= ((w->buf[11] >> 2) & 2) - 1;	/* sign */
+	val6 = (w->buf[13] & 1) << 8 | (w->buf[14] << 4) | w->buf[15];
+	val6 *= (w->buf[13] & 2) - 1;	/* sign */
+	val7 = ((w->buf[16] & 7) * 256 + w->buf[17] * 16 + w->buf[18]) >> 2;
+	val7 *= ((w->buf[16] >> 2) & 2) - 1;	/*sign */
+	val8 = (w->buf[18] & 1) << 8 | (w->buf[19] << 4) | w->buf[20];
+	val8 *= (w->buf[18] & 2) - 1;	/*sign */
+
+#ifdef WK0701_DEBUG
+	{
+		int magic, magic_bit;
+		magic = (w->buf[21] << 4) | w->buf[22];
+		magic_bit = (w->buf[24] & 8) >> 3;
+		printk(KERN_DEBUG
+		       "walkera0701: %4d %4d %4d %4d  %4d %4d %4d %4d (magic %2x %d)\n",
+		       val1, val2, val3, val4, val5, val6, val7, val8, magic,
+		       magic_bit);
+	}
+#endif
+	input_report_abs(w->input_dev, ABS_X, val2);
+	input_report_abs(w->input_dev, ABS_Y, val1);
+	input_report_abs(w->input_dev, ABS_Z, val6);
+	input_report_abs(w->input_dev, ABS_THROTTLE, val3);
+	input_report_abs(w->input_dev, ABS_RUDDER, val4);
+	input_report_abs(w->input_dev, ABS_MISC, val7);
+	input_report_key(w->input_dev, BTN_GEAR_DOWN, val5 > 0);
+}
+
+static inline int read_ack(struct pardevice *p)
+{
+	return parport_read_status(p->port) & 0x40;
+}
+
+/* falling edge, prepare to BIN value calculation */
+static void walkera0701_irq_handler(void *handler_data)
+{
+	u64 pulse_time;
+	struct walkera_dev *w = handler_data;
+
+	w->irq_time = ktime_to_ns(ktime_get());
+	pulse_time = w->irq_time - w->irq_lasttime;
+	w->irq_lasttime = w->irq_time;
+
+	/* cancel timer, if in handler or active do resync */
+	if (unlikely(0 != hrtimer_try_to_cancel(&w->timer))) {
+		w->counter = NO_SYNC;
+		return;
+	}
+
+	if (w->counter < NO_SYNC) {
+		if (w->ack) {
+			pulse_time -= BIN1_PULSE;
+			w->buf[w->counter] = 8;
+		} else {
+			pulse_time -= BIN0_PULSE;
+			w->buf[w->counter] = 0;
+		}
+		if (w->counter == 24) {	/* full frame */
+			walkera0701_parse_frame(w);
+			w->counter = NO_SYNC;
+			if (abs(pulse_time - SYNC_PULSE) < RESERVE)	/* new frame sync */
+				w->counter = 0;
+		} else {
+			if ((pulse_time > (ANALOG_MIN_PULSE - RESERVE)
+			     && (pulse_time < (ANALOG_MAX_PULSE + RESERVE)))) {
+				pulse_time -= (ANALOG_MIN_PULSE - RESERVE);
+				pulse_time = (u32) pulse_time / ANALOG_DELTA;	/* overtiping is safe, pulsetime < s32.. */
+				w->buf[w->counter++] |= (pulse_time & 7);
+			} else
+				w->counter = NO_SYNC;
+		}
+	} else if (abs(pulse_time - SYNC_PULSE - BIN0_PULSE) <
+				RESERVE + BIN1_PULSE - BIN0_PULSE)	/* frame sync .. */
+		w->counter = 0;
+
+	hrtimer_start(&w->timer, ktime_set(0, BIN_SAMPLE), HRTIMER_MODE_REL);
+}
+
+static enum hrtimer_restart timer_handler(struct hrtimer
+					  *handle)
+{
+	struct walkera_dev *w;
+
+	w = container_of(handle, struct walkera_dev, timer);
+	w->ack = read_ack(w->pardevice);
+
+	return HRTIMER_NORESTART;
+}
+
+static int walkera0701_open(struct input_dev *dev)
+{
+	struct walkera_dev *w = input_get_drvdata(dev);
+
+	parport_enable_irq(w->parport);
+	return 0;
+}
+
+static void walkera0701_close(struct input_dev *dev)
+{
+	struct walkera_dev *w = input_get_drvdata(dev);
+
+	parport_disable_irq(w->parport);
+}
+
+static int walkera0701_connect(struct walkera_dev *w, int parport)
+{
+	int err = -ENODEV;
+
+	w->parport = parport_find_number(parport);
+	if (w->parport == NULL)
+		return -ENODEV;
+
+	if (w->parport->irq == -1) {
+		printk(KERN_ERR "walkera0701: parport without interrupt\n");
+		goto init_err;
+	}
+
+	err = -EBUSY;
+	w->pardevice = parport_register_device(w->parport, "walkera0701",
+				    NULL, NULL, walkera0701_irq_handler,
+				    PARPORT_DEV_EXCL, w);
+	if (!w->pardevice)
+		goto init_err;
+
+	if (parport_negotiate(w->pardevice->port, IEEE1284_MODE_COMPAT))
+		goto init_err1;
+
+	if (parport_claim(w->pardevice))
+		goto init_err1;
+
+	w->input_dev = input_allocate_device();
+	if (!w->input_dev)
+		goto init_err2;
+
+	input_set_drvdata(w->input_dev, w);
+	w->input_dev->name = "Walkera WK-0701 TX";
+	w->input_dev->phys = w->parport->name;
+	w->input_dev->id.bustype = BUS_PARPORT;
+
+	/* TODO what id vendor/product/version ? */
+	w->input_dev->id.vendor = 0x0001;
+	w->input_dev->id.product = 0x0001;
+	w->input_dev->id.version = 0x0100;
+	w->input_dev->open = walkera0701_open;
+	w->input_dev->close = walkera0701_close;
+
+	w->input_dev->evbit[0] = BIT(EV_ABS) | BIT_MASK(EV_KEY);
+	w->input_dev->keybit[BIT_WORD(BTN_GEAR_DOWN)] = BIT_MASK(BTN_GEAR_DOWN);
+
+	input_set_abs_params(w->input_dev, ABS_X, -512, 512, 0, 0);
+	input_set_abs_params(w->input_dev, ABS_Y, -512, 512, 0, 0);
+	input_set_abs_params(w->input_dev, ABS_Z, -512, 512, 0, 0);
+	input_set_abs_params(w->input_dev, ABS_THROTTLE, -512, 512, 0, 0);
+	input_set_abs_params(w->input_dev, ABS_RUDDER, -512, 512, 0, 0);
+	input_set_abs_params(w->input_dev, ABS_MISC, -512, 512, 0, 0);
+
+	err = input_register_device(w->input_dev);
+	if (err)
+		goto init_err3;
+
+	hrtimer_init(&w->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+	w->timer.function = timer_handler;
+	return 0;
+
+ init_err3:
+	input_free_device(w->input_dev);
+ init_err2:
+	parport_release(w->pardevice);
+ init_err1:
+	parport_unregister_device(w->pardevice);
+ init_err:
+	parport_put_port(w->parport);
+	return err;
+}
+
+static void walkera0701_disconnect(struct walkera_dev *w)
+{
+	hrtimer_cancel(&w->timer);
+	input_unregister_device(w->input_dev);
+	parport_release(w->pardevice);
+	parport_unregister_device(w->pardevice);
+	parport_put_port(w->parport);
+}
+
+static int __init walkera0701_init(void)
+{
+	return walkera0701_connect(&w_dev, walkera0701_pp_no);
+}
+
+static void __exit walkera0701_exit(void)
+{
+	walkera0701_disconnect(&w_dev);
+}
+
+module_init(walkera0701_init);
+module_exit(walkera0701_exit);

drivers/input/keyboard/Kconfig

@@ -268,6 +268,15 @@ config KEYBOARD_PXA27x
 	  To compile this driver as a module, choose M here: the
 	  module will be called pxa27x_keypad.
 
+config KEYBOARD_PXA930_ROTARY
+	tristate "PXA930/PXA935 Enhanced Rotary Controller Support"
+	depends on CPU_PXA930 || CPU_PXA935
+	help
+	  Enable support for PXA930/PXA935 Enhanced Rotary Controller.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called pxa930_rotary.
+
 config KEYBOARD_AAED2000
 	tristate "AAED-2000 keyboard"
 	depends on MACH_AAED2000

drivers/input/keyboard/Makefile

@@ -20,6 +20,7 @@ obj-$(CONFIG_KEYBOARD_HIL)		+= hil_kbd.o
 obj-$(CONFIG_KEYBOARD_HIL_OLD)		+= hilkbd.o
 obj-$(CONFIG_KEYBOARD_OMAP)		+= omap-keypad.o
 obj-$(CONFIG_KEYBOARD_PXA27x)		+= pxa27x_keypad.o
+obj-$(CONFIG_KEYBOARD_PXA930_ROTARY)	+= pxa930_rotary.o
 obj-$(CONFIG_KEYBOARD_AAED2000)		+= aaed2000_kbd.o
 obj-$(CONFIG_KEYBOARD_GPIO)		+= gpio_keys.o
 obj-$(CONFIG_KEYBOARD_HP6XX)		+= jornada680_kbd.o

drivers/input/keyboard/atkbd.c

@@ -883,6 +883,39 @@ static void atkbd_inventec_keymap_fixup(struct atkbd *atkbd)
 				  atkbd->force_release_mask);
 }
 
+/*
+ * Perform fixup for HP Pavilion ZV6100 laptop that doesn't generate release
+ * for its volume buttons
+ */
+static void atkbd_hp_zv6100_keymap_fixup(struct atkbd *atkbd)
+{
+	const unsigned int forced_release_keys[] = {
+		0xae, 0xb0,
+	};
+	int i;
+
+	if (atkbd->set == 2)
+		for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
+			__set_bit(forced_release_keys[i],
+					atkbd->force_release_mask);
+}
+
+/*
+ * Samsung NC10 with Fn+F? key release not working
+ */
+static void atkbd_samsung_keymap_fixup(struct atkbd *atkbd)
+{
+	const unsigned int forced_release_keys[] = {
+		0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9,
+	};
+	int i;
+
+	if (atkbd->set == 2)
+		for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
+			__set_bit(forced_release_keys[i],
+				  atkbd->force_release_mask);
+}
+
 /*
  * atkbd_set_keycode_table() initializes keyboard's keycode table
  * according to the selected scancode set
@@ -1475,6 +1508,15 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
 		.callback = atkbd_setup_fixup,
 		.driver_data = atkbd_dell_laptop_keymap_fixup,
 	},
+	{
+		.ident = "Dell Laptop",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
+			DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
+		},
+		.callback = atkbd_setup_fixup,
+		.driver_data = atkbd_dell_laptop_keymap_fixup,
+	},
 	{
 		.ident = "HP 2133",
 		.matches = {
@@ -1484,6 +1526,15 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
 		.callback = atkbd_setup_fixup,
 		.driver_data = atkbd_hp_keymap_fixup,
 	},
+	{
+		.ident = "HP Pavilion ZV6100",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
+		},
+		.callback = atkbd_setup_fixup,
+		.driver_data = atkbd_hp_zv6100_keymap_fixup,
+	},
 	{
 		.ident = "Inventec Symphony",
 		.matches = {
@@ -1493,6 +1544,15 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
 		.callback = atkbd_setup_fixup,
 		.driver_data = atkbd_inventec_keymap_fixup,
 	},
+	{
+		.ident = "Samsung NC10",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
+		},
+		.callback = atkbd_setup_fixup,
+		.driver_data = atkbd_samsung_keymap_fixup,
+	},
 	{ }
 };
 

drivers/input/keyboard/gpio_keys.c

@@ -98,6 +98,10 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
 	input->id.product = 0x0001;
 	input->id.version = 0x0100;
 
+	/* Enable auto repeat feature of Linux input subsystem */
+	if (pdata->rep)
+		__set_bit(EV_REP, input->evbit);
+
 	ddata->input = input;
 
 	for (i = 0; i < pdata->nbuttons; i++) {

drivers/input/keyboard/hil_kbd.c

@@ -47,6 +47,7 @@
 MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
 MODULE_DESCRIPTION(HIL_GENERIC_NAME " driver");
 MODULE_LICENSE("Dual BSD/GPL");
+MODULE_ALIAS("serio:ty03pr25id00ex*");
 
 #define HIL_KBD_MAX_LENGTH 16
 

drivers/input/keyboard/omap-keypad.c

@@ -122,14 +122,10 @@ static void omap_kp_scan_keypad(struct omap_kp *omap_kp, unsigned char *state)
 
 	/* read the keypad status */
 	if (cpu_is_omap24xx()) {
-		int i;
-		for (i = 0; i < omap_kp->rows; i++)
-			disable_irq(OMAP_GPIO_IRQ(row_gpios[i]));
-
 		/* read the keypad status */
 		for (col = 0; col < omap_kp->cols; col++) {
 			set_col_gpio_val(omap_kp, ~(1 << col));
-			state[col] = ~(get_row_gpio_val(omap_kp)) & 0x3f;
+			state[col] = ~(get_row_gpio_val(omap_kp)) & 0xff;
 		}
 		set_col_gpio_val(omap_kp, 0);
 

drivers/input/keyboard/pxa930_rotary.c

@@ -0,0 +1,212 @@
+/*
+ * Driver for the enhanced rotary controller on pxa930 and pxa935
+ *
+ * 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/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+
+#include <mach/pxa930_rotary.h>
+
+#define SBCR	(0x04)
+#define ERCR	(0x0c)
+
+#define SBCR_ERSB	(1 << 5)
+
+struct pxa930_rotary {
+	struct input_dev	*input_dev;
+	void __iomem		*mmio_base;
+	int			last_ercr;
+
+	struct pxa930_rotary_platform_data *pdata;
+};
+
+static void clear_sbcr(struct pxa930_rotary *r)
+{
+	uint32_t sbcr = __raw_readl(r->mmio_base + SBCR);
+
+	__raw_writel(sbcr | SBCR_ERSB, r->mmio_base + SBCR);
+	__raw_writel(sbcr & ~SBCR_ERSB, r->mmio_base + SBCR);
+}
+
+static irqreturn_t rotary_irq(int irq, void *dev_id)
+{
+	struct pxa930_rotary *r = dev_id;
+	struct pxa930_rotary_platform_data *pdata = r->pdata;
+	int ercr, delta, key;
+
+	ercr = __raw_readl(r->mmio_base + ERCR) & 0xf;
+	clear_sbcr(r);
+
+	delta = ercr - r->last_ercr;
+	if (delta == 0)
+		return IRQ_HANDLED;
+
+	r->last_ercr = ercr;
+
+	if (pdata->up_key && pdata->down_key) {
+		key = (delta > 0) ? pdata->up_key : pdata->down_key;
+		input_report_key(r->input_dev, key, 1);
+		input_sync(r->input_dev);
+		input_report_key(r->input_dev, key, 0);
+	} else
+		input_report_rel(r->input_dev, pdata->rel_code, delta);
+
+	input_sync(r->input_dev);
+
+	return IRQ_HANDLED;
+}
+
+static int pxa930_rotary_open(struct input_dev *dev)
+{
+	struct pxa930_rotary *r = input_get_drvdata(dev);
+
+	clear_sbcr(r);
+
+	return 0;
+}
+
+static void pxa930_rotary_close(struct input_dev *dev)
+{
+	struct pxa930_rotary *r = input_get_drvdata(dev);
+
+	clear_sbcr(r);
+}
+
+static int __devinit pxa930_rotary_probe(struct platform_device *pdev)
+{
+	struct pxa930_rotary_platform_data *pdata = pdev->dev.platform_data;
+	struct pxa930_rotary *r;
+	struct input_dev *input_dev;
+	struct resource *res;
+	int irq;
+	int err;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_err(&pdev->dev, "no irq for rotary controller\n");
+		return -ENXIO;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "no I/O memory defined\n");
+		return -ENXIO;
+	}
+
+	if (!pdata) {
+		dev_err(&pdev->dev, "no platform data defined\n");
+		return -EINVAL;
+	}
+
+	r = kzalloc(sizeof(struct pxa930_rotary), GFP_KERNEL);
+	if (!r)
+		return -ENOMEM;
+
+	r->mmio_base = ioremap_nocache(res->start, resource_size(res));
+	if (r->mmio_base == NULL) {
+		dev_err(&pdev->dev, "failed to remap IO memory\n");
+		err = -ENXIO;
+		goto failed_free;
+	}
+
+	r->pdata = pdata;
+	platform_set_drvdata(pdev, r);
+
+	/* allocate and register the input device */
+	input_dev = input_allocate_device();
+	if (!input_dev) {
+		dev_err(&pdev->dev, "failed to allocate input device\n");
+		err = -ENOMEM;
+		goto failed_free_io;
+	}
+
+	input_dev->name = pdev->name;
+	input_dev->id.bustype = BUS_HOST;
+	input_dev->open = pxa930_rotary_open;
+	input_dev->close = pxa930_rotary_close;
+	input_dev->dev.parent = &pdev->dev;
+
+	if (pdata->up_key && pdata->down_key) {
+		__set_bit(pdata->up_key, input_dev->keybit);
+		__set_bit(pdata->down_key, input_dev->keybit);
+		__set_bit(EV_KEY, input_dev->evbit);
+	} else {
+		__set_bit(pdata->rel_code, input_dev->relbit);
+		__set_bit(EV_REL, input_dev->evbit);
+	}
+
+	r->input_dev = input_dev;
+	input_set_drvdata(input_dev, r);
+
+	err = request_irq(irq, rotary_irq, IRQF_DISABLED,
+			"enhanced rotary", r);
+	if (err) {
+		dev_err(&pdev->dev, "failed to request IRQ\n");
+		goto failed_free_input;
+	}
+
+	err = input_register_device(input_dev);
+	if (err) {
+		dev_err(&pdev->dev, "failed to register input device\n");
+		goto failed_free_irq;
+	}
+
+	return 0;
+
+failed_free_irq:
+	free_irq(irq, r);
+failed_free_input:
+	input_free_device(input_dev);
+failed_free_io:
+	iounmap(r->mmio_base);
+failed_free:
+	kfree(r);
+	return err;
+}
+
+static int __devexit pxa930_rotary_remove(struct platform_device *pdev)
+{
+	struct pxa930_rotary *r = platform_get_drvdata(pdev);
+
+	free_irq(platform_get_irq(pdev, 0), r);
+	input_unregister_device(r->input_dev);
+	iounmap(r->mmio_base);
+	platform_set_drvdata(pdev, NULL);
+	kfree(r);
+
+	return 0;
+}
+
+static struct platform_driver pxa930_rotary_driver = {
+	.driver		= {
+		.name	= "pxa930-rotary",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= pxa930_rotary_probe,
+	.remove		= __devexit_p(pxa930_rotary_remove),
+};
+
+static int __init pxa930_rotary_init(void)
+{
+	return platform_driver_register(&pxa930_rotary_driver);
+}
+module_init(pxa930_rotary_init);
+
+static void __exit pxa930_rotary_exit(void)
+{
+	platform_driver_unregister(&pxa930_rotary_driver);
+}
+module_exit(pxa930_rotary_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Driver for PXA93x Enhanced Rotary Controller");
+MODULE_AUTHOR("Yao Yong <yaoyong@marvell.com>");