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: (32 commits)
  Input: wm97xx - update email address for Liam Girdwood
  Input: i8042 - add Thinkpad R31 to nomux list
  Input: move map_to_7segment.h to include/linux
  Input: ads7846 - fix cache line sharing issue
  Input: cm109 - add missing newlines to messages
  Input: document i8042.debug in kernel-parameters.txt
  Input: keyboard - fix potential out of bound access to key_map
  Input: psmouse - add OLPC touchpad driver
  Input: psmouse - tweak PSMOUSE_DEFINE_ATTR to support raw set callbacks
  Input: psmouse - add psmouse_queue_work() for ps/2 extension to make use of
  Input: psmouse - export psmouse_set_state for ps/2 extensions to use
  Input: ads7846 - introduce .gpio_pendown to get pendown state
  Input: ALPS - add signature for DualPoint found in Dell Latitude E6500
  Input: serio_raw - allow attaching to translated (SERIO_I8042XL) ports
  Input: cm109 - don't use obsolete logging macros
  Input: atkbd - expand Latitude's force release quirk to other Dells
  Input: bf54x-keys - add power management support
  Input: atmel_tsadcc - improve accuracy
  Input: convert drivers to use strict_strtoul()
  Input: appletouch - handle geyser 3/4 status bits
  ...

7 files changed, 1144 insertions, 225 deletions

diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index e99b7882f382..199055db5082 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -180,6 +180,19 @@ config INPUT_YEALINK
 	  To compile this driver as a module, choose M here: the module will be
 	  called yealink.
 
+config INPUT_CM109
+	tristate "C-Media CM109 USB I/O Controller"
+	depends on EXPERIMENTAL
+	depends on USB_ARCH_HAS_HCD
+	select USB
+	help
+	  Say Y here if you want to enable keyboard and buzzer functions of the
+	  C-Media CM109 usb phones. The audio part is enabled by the generic
+	  usb sound driver, so you might want to enable that as well.
+
+	  To compile this driver as a module, choose M here: the module will be
+	  called cm109.
+
 config INPUT_UINPUT
 	tristate "User level driver support"
 	help
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index f48009b52226..d7db2aeb8a98 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_INPUT_ATI_REMOTE2)		+= ati_remote2.o
 obj-$(CONFIG_INPUT_KEYSPAN_REMOTE)	+= keyspan_remote.o
 obj-$(CONFIG_INPUT_POWERMATE)		+= powermate.o
 obj-$(CONFIG_INPUT_YEALINK)		+= yealink.o
+obj-$(CONFIG_INPUT_CM109)		+= cm109.o
 obj-$(CONFIG_HP_SDC_RTC)		+= hp_sdc_rtc.o
 obj-$(CONFIG_INPUT_UINPUT)		+= uinput.o
 obj-$(CONFIG_INPUT_APANEL)		+= apanel.o
diff --git a/drivers/input/misc/ati_remote2.c b/drivers/input/misc/ati_remote2.c
index a7fabafbd94c..3c9988dc0e9f 100644
--- a/drivers/input/misc/ati_remote2.c
+++ b/drivers/input/misc/ati_remote2.c
@@ -1,8 +1,8 @@
 /*
  * ati_remote2 - ATI/Philips USB RF remote driver
  *
- * Copyright (C) 2005 Ville Syrjala <syrjala@sci.fi>
- * Copyright (C) 2007 Peter Stokes <linux@dadeos.freeserve.co.uk>
+ * Copyright (C) 2005-2008 Ville Syrjala <syrjala@sci.fi>
+ * Copyright (C) 2007-2008 Peter Stokes <linux@dadeos.co.uk>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2
@@ -12,7 +12,7 @@
 #include <linux/usb/input.h>
 
 #define DRIVER_DESC    "ATI/Philips USB RF remote driver"
-#define DRIVER_VERSION "0.2"
+#define DRIVER_VERSION "0.3"
 
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_VERSION(DRIVER_VERSION);
@@ -27,7 +27,7 @@ MODULE_LICENSE("GPL");
  * A remote's "channel" may be altered by pressing and holding the "PC" button for
  * approximately 3 seconds, after which the button will slowly flash the count of the
  * currently configured "channel", using the numeric keypad enter a number between 1 and
- * 16 and then the "PC" button again, the button will slowly flash the count of the
+ * 16 and then press the "PC" button again, the button will slowly flash the count of the
  * newly configured "channel".
  */
 
@@ -45,9 +45,25 @@ static struct usb_device_id ati_remote2_id_table[] = {
 };
 MODULE_DEVICE_TABLE(usb, ati_remote2_id_table);
 
-static struct {
-	int hw_code;
-	int key_code;
+static DEFINE_MUTEX(ati_remote2_mutex);
+
+enum {
+	ATI_REMOTE2_OPENED = 0x1,
+	ATI_REMOTE2_SUSPENDED = 0x2,
+};
+
+enum {
+	ATI_REMOTE2_AUX1,
+	ATI_REMOTE2_AUX2,
+	ATI_REMOTE2_AUX3,
+	ATI_REMOTE2_AUX4,
+	ATI_REMOTE2_PC,
+	ATI_REMOTE2_MODES,
+};
+
+static const struct {
+	u8  hw_code;
+	u16 keycode;
 } ati_remote2_key_table[] = {
 	{ 0x00, KEY_0 },
 	{ 0x01, KEY_1 },
@@ -73,6 +89,7 @@ static struct {
 	{ 0x37, KEY_RECORD },
 	{ 0x38, KEY_DVD },
 	{ 0x39, KEY_TV },
+	{ 0x3f, KEY_PROG1 }, /* AUX1-AUX4 and PC */
 	{ 0x54, KEY_MENU },
 	{ 0x58, KEY_UP },
 	{ 0x59, KEY_DOWN },
@@ -91,15 +108,9 @@ static struct {
 	{ 0xa9, BTN_LEFT },
 	{ 0xaa, BTN_RIGHT },
 	{ 0xbe, KEY_QUESTION },
-	{ 0xd5, KEY_FRONT },
 	{ 0xd0, KEY_EDIT },
+	{ 0xd5, KEY_FRONT },
 	{ 0xf9, KEY_INFO },
-	{ (0x00 << 8) | 0x3f, KEY_PROG1 },
-	{ (0x01 << 8) | 0x3f, KEY_PROG2 },
-	{ (0x02 << 8) | 0x3f, KEY_PROG3 },
-	{ (0x03 << 8) | 0x3f, KEY_PROG4 },
-	{ (0x04 << 8) | 0x3f, KEY_PC },
-	{ 0, KEY_RESERVED }
 };
 
 struct ati_remote2 {
@@ -117,46 +128,106 @@ struct ati_remote2 {
 
 	char name[64];
 	char phys[64];
+
+	/* Each mode (AUX1-AUX4 and PC) can have an independent keymap. */
+	u16 keycode[ATI_REMOTE2_MODES][ARRAY_SIZE(ati_remote2_key_table)];
+
+	unsigned int flags;
 };
 
 static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id);
 static void ati_remote2_disconnect(struct usb_interface *interface);
+static int ati_remote2_suspend(struct usb_interface *interface, pm_message_t message);
+static int ati_remote2_resume(struct usb_interface *interface);
 
 static struct usb_driver ati_remote2_driver = {
 	.name       = "ati_remote2",
 	.probe      = ati_remote2_probe,
 	.disconnect = ati_remote2_disconnect,
 	.id_table   = ati_remote2_id_table,
+	.suspend    = ati_remote2_suspend,
+	.resume     = ati_remote2_resume,
+	.supports_autosuspend = 1,
 };
 
-static int ati_remote2_open(struct input_dev *idev)
+static int ati_remote2_submit_urbs(struct ati_remote2 *ar2)
 {
-	struct ati_remote2 *ar2 = input_get_drvdata(idev);
 	int r;
 
 	r = usb_submit_urb(ar2->urb[0], GFP_KERNEL);
 	if (r) {
 		dev_err(&ar2->intf[0]->dev,
-			"%s: usb_submit_urb() = %d\n", __func__, r);
+			"%s(): usb_submit_urb() = %d\n", __func__, r);
 		return r;
 	}
 	r = usb_submit_urb(ar2->urb[1], GFP_KERNEL);
 	if (r) {
 		usb_kill_urb(ar2->urb[0]);
 		dev_err(&ar2->intf[1]->dev,
-			"%s: usb_submit_urb() = %d\n", __func__, r);
+			"%s(): usb_submit_urb() = %d\n", __func__, r);
 		return r;
 	}
 
 	return 0;
 }
 
+static void ati_remote2_kill_urbs(struct ati_remote2 *ar2)
+{
+	usb_kill_urb(ar2->urb[1]);
+	usb_kill_urb(ar2->urb[0]);
+}
+
+static int ati_remote2_open(struct input_dev *idev)
+{
+	struct ati_remote2 *ar2 = input_get_drvdata(idev);
+	int r;
+
+	dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+	r = usb_autopm_get_interface(ar2->intf[0]);
+	if (r) {
+		dev_err(&ar2->intf[0]->dev,
+			"%s(): usb_autopm_get_interface() = %d\n", __func__, r);
+		goto fail1;
+	}
+
+	mutex_lock(&ati_remote2_mutex);
+
+	if (!(ar2->flags & ATI_REMOTE2_SUSPENDED)) {
+		r = ati_remote2_submit_urbs(ar2);
+		if (r)
+			goto fail2;
+	}
+
+	ar2->flags |= ATI_REMOTE2_OPENED;
+
+	mutex_unlock(&ati_remote2_mutex);
+
+	usb_autopm_put_interface(ar2->intf[0]);
+
+	return 0;
+
+ fail2:
+	mutex_unlock(&ati_remote2_mutex);
+	usb_autopm_put_interface(ar2->intf[0]);
+ fail1:
+	return r;
+}
+
 static void ati_remote2_close(struct input_dev *idev)
 {
 	struct ati_remote2 *ar2 = input_get_drvdata(idev);
 
-	usb_kill_urb(ar2->urb[0]);
-	usb_kill_urb(ar2->urb[1]);
+	dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+	mutex_lock(&ati_remote2_mutex);
+
+	if (!(ar2->flags & ATI_REMOTE2_SUSPENDED))
+		ati_remote2_kill_urbs(ar2);
+
+	ar2->flags &= ~ATI_REMOTE2_OPENED;
+
+	mutex_unlock(&ati_remote2_mutex);
 }
 
 static void ati_remote2_input_mouse(struct ati_remote2 *ar2)
@@ -172,7 +243,7 @@ static void ati_remote2_input_mouse(struct ati_remote2 *ar2)
 
 	mode = data[0] & 0x0F;
 
-	if (mode > 4) {
+	if (mode > ATI_REMOTE2_PC) {
 		dev_err(&ar2->intf[0]->dev,
 			"Unknown mode byte (%02x %02x %02x %02x)\n",
 			data[3], data[2], data[1], data[0]);
@@ -191,7 +262,7 @@ static int ati_remote2_lookup(unsigned int hw_code)
 {
 	int i;
 
-	for (i = 0; ati_remote2_key_table[i].key_code != KEY_RESERVED; i++)
+	for (i = 0; i < ARRAY_SIZE(ati_remote2_key_table); i++)
 		if (ati_remote2_key_table[i].hw_code == hw_code)
 			return i;
 
@@ -211,7 +282,7 @@ static void ati_remote2_input_key(struct ati_remote2 *ar2)
 
 	mode = data[0] & 0x0F;
 
-	if (mode > 4) {
+	if (mode > ATI_REMOTE2_PC) {
 		dev_err(&ar2->intf[1]->dev,
 			"Unknown mode byte (%02x %02x %02x %02x)\n",
 			data[3], data[2], data[1], data[0]);
@@ -219,10 +290,6 @@ static void ati_remote2_input_key(struct ati_remote2 *ar2)
 	}
 
 	hw_code = data[2];
-	/*
-	 * Mode keys (AUX1-AUX4, PC) all generate the same code byte.
-	 * Use the mode byte to figure out which one was pressed.
-	 */
 	if (hw_code == 0x3f) {
 		/*
 		 * For some incomprehensible reason the mouse pad generates
@@ -236,8 +303,6 @@ static void ati_remote2_input_key(struct ati_remote2 *ar2)
 
 		if (data[1] == 0)
 			ar2->mode = mode;
-
-		hw_code |= mode << 8;
 	}
 
 	if (!((1 << mode) & mode_mask))
@@ -260,8 +325,8 @@ static void ati_remote2_input_key(struct ati_remote2 *ar2)
 	case 2:	/* repeat */
 
 		/* No repeat for mouse buttons. */
-		if (ati_remote2_key_table[index].key_code == BTN_LEFT ||
-		    ati_remote2_key_table[index].key_code == BTN_RIGHT)
+		if (ar2->keycode[mode][index] == BTN_LEFT ||
+		    ar2->keycode[mode][index] == BTN_RIGHT)
 			return;
 
 		if (!time_after_eq(jiffies, ar2->jiffies))
@@ -276,7 +341,7 @@ static void ati_remote2_input_key(struct ati_remote2 *ar2)
 		return;
 	}
 
-	input_event(idev, EV_KEY, ati_remote2_key_table[index].key_code, data[1]);
+	input_event(idev, EV_KEY, ar2->keycode[mode][index], data[1]);
 	input_sync(idev);
 }
 
@@ -287,6 +352,7 @@ static void ati_remote2_complete_mouse(struct urb *urb)
 
 	switch (urb->status) {
 	case 0:
+		usb_mark_last_busy(ar2->udev);
 		ati_remote2_input_mouse(ar2);
 		break;
 	case -ENOENT:
@@ -297,6 +363,7 @@ static void ati_remote2_complete_mouse(struct urb *urb)
 			"%s(): urb status = %d\n", __func__, urb->status);
 		return;
 	default:
+		usb_mark_last_busy(ar2->udev);
 		dev_err(&ar2->intf[0]->dev,
 			"%s(): urb status = %d\n", __func__, urb->status);
 	}
@@ -314,6 +381,7 @@ static void ati_remote2_complete_key(struct urb *urb)
 
 	switch (urb->status) {
 	case 0:
+		usb_mark_last_busy(ar2->udev);
 		ati_remote2_input_key(ar2);
 		break;
 	case -ENOENT:
@@ -324,6 +392,7 @@ static void ati_remote2_complete_key(struct urb *urb)
 			"%s(): urb status = %d\n", __func__, urb->status);
 		return;
 	default:
+		usb_mark_last_busy(ar2->udev);
 		dev_err(&ar2->intf[1]->dev,
 			"%s(): urb status = %d\n", __func__, urb->status);
 	}
@@ -334,10 +403,60 @@ static void ati_remote2_complete_key(struct urb *urb)
 			"%s(): usb_submit_urb() = %d\n", __func__, r);
 }
 
+static int ati_remote2_getkeycode(struct input_dev *idev,
+				  int scancode, int *keycode)
+{
+	struct ati_remote2 *ar2 = input_get_drvdata(idev);
+	int index, mode;
+
+	mode = scancode >> 8;
+	if (mode > ATI_REMOTE2_PC || !((1 << mode) & mode_mask))
+		return -EINVAL;
+
+	index = ati_remote2_lookup(scancode & 0xFF);
+	if (index < 0)
+		return -EINVAL;
+
+	*keycode = ar2->keycode[mode][index];
+	return 0;
+}
+
+static int ati_remote2_setkeycode(struct input_dev *idev, int scancode, int keycode)
+{
+	struct ati_remote2 *ar2 = input_get_drvdata(idev);
+	int index, mode, old_keycode;
+
+	mode = scancode >> 8;
+	if (mode > ATI_REMOTE2_PC || !((1 << mode) & mode_mask))
+		return -EINVAL;
+
+	index = ati_remote2_lookup(scancode & 0xFF);
+	if (index < 0)
+		return -EINVAL;
+
+	if (keycode < KEY_RESERVED || keycode > KEY_MAX)
+		return -EINVAL;
+
+	old_keycode = ar2->keycode[mode][index];
+	ar2->keycode[mode][index] = keycode;
+	set_bit(keycode, idev->keybit);
+
+	for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) {
+		for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) {
+			if (ar2->keycode[mode][index] == old_keycode)
+				return 0;
+		}
+	}
+
+	clear_bit(old_keycode, idev->keybit);
+
+	return 0;
+}
+
 static int ati_remote2_input_init(struct ati_remote2 *ar2)
 {
 	struct input_dev *idev;
-	int i, retval;
+	int index, mode, retval;
 
 	idev = input_allocate_device();
 	if (!idev)
@@ -350,8 +469,26 @@ static int ati_remote2_input_init(struct ati_remote2 *ar2)
 	idev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
 		BIT_MASK(BTN_RIGHT);
 	idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
-	for (i = 0; ati_remote2_key_table[i].key_code != KEY_RESERVED; i++)
-		set_bit(ati_remote2_key_table[i].key_code, idev->keybit);
+
+	for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) {
+		for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) {
+			ar2->keycode[mode][index] = ati_remote2_key_table[index].keycode;
+			set_bit(ar2->keycode[mode][index], idev->keybit);
+		}
+	}
+
+	/* AUX1-AUX4 and PC generate the same scancode. */
+	index = ati_remote2_lookup(0x3f);
+	ar2->keycode[ATI_REMOTE2_AUX1][index] = KEY_PROG1;
+	ar2->keycode[ATI_REMOTE2_AUX2][index] = KEY_PROG2;
+	ar2->keycode[ATI_REMOTE2_AUX3][index] = KEY_PROG3;
+	ar2->keycode[ATI_REMOTE2_AUX4][index] = KEY_PROG4;
+	ar2->keycode[ATI_REMOTE2_PC][index] = KEY_PC;
+	set_bit(KEY_PROG1, idev->keybit);
+	set_bit(KEY_PROG2, idev->keybit);
+	set_bit(KEY_PROG3, idev->keybit);
+	set_bit(KEY_PROG4, idev->keybit);
+	set_bit(KEY_PC, idev->keybit);
 
 	idev->rep[REP_DELAY]  = 250;
 	idev->rep[REP_PERIOD] = 33;
@@ -359,6 +496,9 @@ static int ati_remote2_input_init(struct ati_remote2 *ar2)
 	idev->open = ati_remote2_open;
 	idev->close = ati_remote2_close;
 
+	idev->getkeycode = ati_remote2_getkeycode;
+	idev->setkeycode = ati_remote2_setkeycode;
+
 	idev->name = ar2->name;
 	idev->phys = ar2->phys;
 
@@ -490,6 +630,8 @@ static int ati_remote2_probe(struct usb_interface *interface, const struct usb_d
 
 	usb_set_intfdata(interface, ar2);
 
+	interface->needs_remote_wakeup = 1;
+
 	return 0;
 
  fail2:
@@ -522,6 +664,57 @@ static void ati_remote2_disconnect(struct usb_interface *interface)
 	kfree(ar2);
 }
 
+static int ati_remote2_suspend(struct usb_interface *interface,
+			       pm_message_t message)
+{
+	struct ati_remote2 *ar2;
+	struct usb_host_interface *alt = interface->cur_altsetting;
+
+	if (alt->desc.bInterfaceNumber)
+		return 0;
+
+	ar2 = usb_get_intfdata(interface);
+
+	dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+	mutex_lock(&ati_remote2_mutex);
+
+	if (ar2->flags & ATI_REMOTE2_OPENED)
+		ati_remote2_kill_urbs(ar2);
+
+	ar2->flags |= ATI_REMOTE2_SUSPENDED;
+
+	mutex_unlock(&ati_remote2_mutex);
+
+	return 0;
+}
+
+static int ati_remote2_resume(struct usb_interface *interface)
+{
+	struct ati_remote2 *ar2;
+	struct usb_host_interface *alt = interface->cur_altsetting;
+	int r = 0;
+
+	if (alt->desc.bInterfaceNumber)
+		return 0;
+
+	ar2 = usb_get_intfdata(interface);
+
+	dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+	mutex_lock(&ati_remote2_mutex);
+
+	if (ar2->flags & ATI_REMOTE2_OPENED)
+		r = ati_remote2_submit_urbs(ar2);
+
+	if (!r)
+		ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
+
+	mutex_unlock(&ati_remote2_mutex);
+
+	return r;
+}
+
 static int __init ati_remote2_init(void)
 {
 	int r;
diff --git a/drivers/input/misc/cm109.c b/drivers/input/misc/cm109.c
new file mode 100644
index 000000000000..bce160f4349b
--- /dev/null
+++ b/drivers/input/misc/cm109.c
@@ -0,0 +1,882 @@
+/*
+ * Driver for the VoIP USB phones with CM109 chipsets.
+ *
+ * Copyright (C) 2007 - 2008 Alfred E. Heggestad <aeh@db.org>
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License as
+ *	published by the Free Software Foundation, version 2.
+ */
+
+/*
+ *   Tested devices:
+ *	- Komunikate KIP1000
+ *	- Genius G-talk
+ *	- Allied-Telesis Corega USBPH01
+ *	- ...
+ *
+ * This driver is based on the yealink.c driver
+ *
+ * Thanks to:
+ *   - Authors of yealink.c
+ *   - Thomas Reitmayr
+ *   - Oliver Neukum for good review comments and code
+ *   - Shaun Jackman <sjackman@gmail.com> for Genius G-talk keymap
+ *   - Dmitry Torokhov for valuable input and review
+ *
+ * Todo:
+ *   - Read/write EEPROM
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/rwsem.h>
+#include <linux/usb/input.h>
+
+#define DRIVER_VERSION "20080805"
+#define DRIVER_AUTHOR  "Alfred E. Heggestad"
+#define DRIVER_DESC    "CM109 phone driver"
+
+static char *phone = "kip1000";
+module_param(phone, charp, S_IRUSR);
+MODULE_PARM_DESC(phone, "Phone name {kip1000, gtalk, usbph01}");
+
+enum {
+	/* HID Registers */
+	HID_IR0 = 0x00, /* Record/Playback-mute button, Volume up/down  */
+	HID_IR1 = 0x01, /* GPI, generic registers or EEPROM_DATA0       */
+	HID_IR2 = 0x02, /* Generic registers or EEPROM_DATA1            */
+	HID_IR3 = 0x03, /* Generic registers or EEPROM_CTRL             */
+	HID_OR0 = 0x00, /* Mapping control, buzzer, SPDIF (offset 0x04) */
+	HID_OR1 = 0x01, /* GPO - General Purpose Output                 */
+	HID_OR2 = 0x02, /* Set GPIO to input/output mode                */
+	HID_OR3 = 0x03, /* SPDIF status channel or EEPROM_CTRL          */
+
+	/* HID_IR0 */
+	RECORD_MUTE   = 1 << 3,
+	PLAYBACK_MUTE = 1 << 2,
+	VOLUME_DOWN   = 1 << 1,
+	VOLUME_UP     = 1 << 0,
+
+	/* HID_OR0 */
+	/* bits 7-6
+	   0: HID_OR1-2 are used for GPO; HID_OR0, 3 are used for buzzer
+	      and SPDIF
+	   1: HID_OR0-3 are used as generic HID registers
+	   2: Values written to HID_OR0-3 are also mapped to MCU_CTRL,
+	      EEPROM_DATA0-1, EEPROM_CTRL (see Note)
+	   3: Reserved
+	 */
+	HID_OR_GPO_BUZ_SPDIF   = 0 << 6,
+	HID_OR_GENERIC_HID_REG = 1 << 6,
+	HID_OR_MAP_MCU_EEPROM  = 2 << 6,
+
+	BUZZER_ON = 1 << 5,
+
+	/* up to 256 normal keys, up to 16 special keys */
+	KEYMAP_SIZE = 256 + 16,
+};
+
+/* CM109 protocol packet */
+struct cm109_ctl_packet {
+	u8 byte[4];
+} __attribute__ ((packed));
+
+enum { USB_PKT_LEN = sizeof(struct cm109_ctl_packet) };
+
+/* CM109 device structure */
+struct cm109_dev {
+	struct input_dev *idev;	 /* input device */
+	struct usb_device *udev; /* usb device */
+	struct usb_interface *intf;
+
+	/* irq input channel */
+	struct cm109_ctl_packet *irq_data;
+	dma_addr_t irq_dma;
+	struct urb *urb_irq;
+
+	/* control output channel */
+	struct cm109_ctl_packet *ctl_data;
+	dma_addr_t ctl_dma;
+	struct usb_ctrlrequest *ctl_req;
+	dma_addr_t ctl_req_dma;
+	struct urb *urb_ctl;
+	/*
+	 * The 3 bitfields below are protected by ctl_submit_lock.
+	 * They have to be separate since they are accessed from IRQ
+	 * context.
+	 */
+	unsigned irq_urb_pending:1;	/* irq_urb is in flight */
+	unsigned ctl_urb_pending:1;	/* ctl_urb is in flight */
+	unsigned buzzer_pending:1;	/* need to issue buzz command */
+	spinlock_t ctl_submit_lock;
+
+	unsigned char buzzer_state;	/* on/off */
+
+	/* flags */
+	unsigned open:1;
+	unsigned resetting:1;
+	unsigned shutdown:1;
+
+	/* This mutex protects writes to the above flags */
+	struct mutex pm_mutex;
+
+	unsigned short keymap[KEYMAP_SIZE];
+
+	char phys[64];		/* physical device path */
+	int key_code;		/* last reported key */
+	int keybit;		/* 0=new scan  1,2,4,8=scan columns  */
+	u8 gpi;			/* Cached value of GPI (high nibble) */
+};
+
+/******************************************************************************
+ * CM109 key interface
+ *****************************************************************************/
+
+static unsigned short special_keymap(int code)
+{
+	if (code > 0xff) {
+		switch (code - 0xff) {
+		case RECORD_MUTE:	return KEY_MUTE;
+		case PLAYBACK_MUTE:	return KEY_MUTE;
+		case VOLUME_DOWN:	return KEY_VOLUMEDOWN;
+		case VOLUME_UP:		return KEY_VOLUMEUP;
+		}
+	}
+	return KEY_RESERVED;
+}
+
+/* Map device buttons to internal key events.
+ *
+ * The "up" and "down" keys, are symbolised by arrows on the button.
+ * The "pickup" and "hangup" keys are symbolised by a green and red phone
+ * on the button.
+
+ Komunikate KIP1000 Keyboard Matrix
+
+     -> -- 1 -- 2 -- 3  --> GPI pin 4 (0x10)
+      |    |    |    |
+     <- -- 4 -- 5 -- 6  --> GPI pin 5 (0x20)
+      |    |    |    |
+     END - 7 -- 8 -- 9  --> GPI pin 6 (0x40)
+      |    |    |    |
+     OK -- * -- 0 -- #  --> GPI pin 7 (0x80)
+      |    |    |    |
+
+     /|\  /|\  /|\  /|\
+      |    |    |    |
+GPO
+pin:  3    2    1    0
+     0x8  0x4  0x2  0x1
+
+ */
+static unsigned short keymap_kip1000(int scancode)
+{
+	switch (scancode) {				/* phone key:   */
+	case 0x82: return KEY_NUMERIC_0;		/*   0          */
+	case 0x14: return KEY_NUMERIC_1;		/*   1          */
+	case 0x12: return KEY_NUMERIC_2;		/*   2          */
+	case 0x11: return KEY_NUMERIC_3;		/*   3          */
+	case 0x24: return KEY_NUMERIC_4;		/*   4          */
+	case 0x22: return KEY_NUMERIC_5;		/*   5          */
+	case 0x21: return KEY_NUMERIC_6;		/*   6          */
+	case 0x44: return KEY_NUMERIC_7;		/*   7          */
+	case 0x42: return KEY_NUMERIC_8;		/*   8          */
+	case 0x41: return KEY_NUMERIC_9;		/*   9          */
+	case 0x81: return KEY_NUMERIC_POUND;		/*   #          */
+	case 0x84: return KEY_NUMERIC_STAR;		/*   *          */
+	case 0x88: return KEY_ENTER;			/*   pickup     */
+	case 0x48: return KEY_ESC;			/*   hangup     */
+	case 0x28: return KEY_LEFT;			/*   IN         */
+	case 0x18: return KEY_RIGHT;			/*   OUT        */
+	default:   return special_keymap(scancode);
+	}
+}
+
+/*
+  Contributed by Shaun Jackman <sjackman@gmail.com>
+
+  Genius G-Talk keyboard matrix
+     0 1 2 3
+  4: 0 4 8 Talk
+  5: 1 5 9 End
+  6: 2 6 # Up
+  7: 3 7 * Down
+*/
+static unsigned short keymap_gtalk(int scancode)
+{
+	switch (scancode) {
+	case 0x11: return KEY_NUMERIC_0;
+	case 0x21: return KEY_NUMERIC_1;
+	case 0x41: return KEY_NUMERIC_2;
+	case 0x81: return KEY_NUMERIC_3;
+	case 0x12: return KEY_NUMERIC_4;
+	case 0x22: return KEY_NUMERIC_5;
+	case 0x42: return KEY_NUMERIC_6;
+	case 0x82: return KEY_NUMERIC_7;
+	case 0x14: return KEY_NUMERIC_8;
+	case 0x24: return KEY_NUMERIC_9;
+	case 0x44: return KEY_NUMERIC_POUND;	/* # */
+	case 0x84: return KEY_NUMERIC_STAR;	/* * */
+	case 0x18: return KEY_ENTER;		/* Talk (green handset) */
+	case 0x28: return KEY_ESC;		/* End (red handset) */
+	case 0x48: return KEY_UP;		/* Menu up (rocker switch) */
+	case 0x88: return KEY_DOWN;		/* Menu down (rocker switch) */
+	default:   return special_keymap(scancode);
+	}
+}
+
+/*
+ * Keymap for Allied-Telesis Corega USBPH01
+ * http://www.alliedtelesis-corega.com/2/1344/1437/1360/chprd.html
+ *
+ * Contributed by july@nat.bg
+ */
+static unsigned short keymap_usbph01(int scancode)
+{
+	switch (scancode) {
+	case 0x11: return KEY_NUMERIC_0;		/*   0          */
+	case 0x21: return KEY_NUMERIC_1;		/*   1          */
+	case 0x41: return KEY_NUMERIC_2;		/*   2          */
+	case 0x81: return KEY_NUMERIC_3;		/*   3          */
+	case 0x12: return KEY_NUMERIC_4;		/*   4          */
+	case 0x22: return KEY_NUMERIC_5;		/*   5          */
+	case 0x42: return KEY_NUMERIC_6;		/*   6          */
+	case 0x82: return KEY_NUMERIC_7;		/*   7          */
+	case 0x14: return KEY_NUMERIC_8;		/*   8          */
+	case 0x24: return KEY_NUMERIC_9;		/*   9          */
+	case 0x44: return KEY_NUMERIC_POUND;		/*   #          */
+	case 0x84: return KEY_NUMERIC_STAR;		/*   *          */
+	case 0x18: return KEY_ENTER;			/*   pickup     */
+	case 0x28: return KEY_ESC;			/*   hangup     */
+	case 0x48: return KEY_LEFT;			/*   IN         */
+	case 0x88: return KEY_RIGHT;			/*   OUT        */
+	default:   return special_keymap(scancode);
+	}
+}
+
+static unsigned short (*keymap)(int) = keymap_kip1000;
+
+/*
+ * Completes a request by converting the data into events for the
+ * input subsystem.
+ */
+static void report_key(struct cm109_dev *dev, int key)
+{
+	struct input_dev *idev = dev->idev;
+
+	if (dev->key_code >= 0) {
+		/* old key up */
+		input_report_key(idev, dev->key_code, 0);
+	}
+
+	dev->key_code = key;
+	if (key >= 0) {
+		/* new valid key */
+		input_report_key(idev, key, 1);
+	}
+
+	input_sync(idev);
+}
+
+/******************************************************************************
+ * CM109 usb communication interface
+ *****************************************************************************/
+
+static void cm109_submit_buzz_toggle(struct cm109_dev *dev)
+{
+	int error;
+
+	if (dev->buzzer_state)
+		dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
+	else
+		dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
+
+	error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC);
+	if (error)
+		err("%s: usb_submit_urb (urb_ctl) failed %d", __func__, error);
+}
+
+/*
+ * IRQ handler
+ */
+static void cm109_urb_irq_callback(struct urb *urb)
+{
+	struct cm109_dev *dev = urb->context;
+	const int status = urb->status;
+	int error;
+
+	dev_dbg(&urb->dev->dev, "### URB IRQ: [0x%02x 0x%02x 0x%02x 0x%02x] keybit=0x%02x\n",
+	     dev->irq_data->byte[0],
+	     dev->irq_data->byte[1],
+	     dev->irq_data->byte[2],
+	     dev->irq_data->byte[3],
+	     dev->keybit);
+
+	if (status) {
+		if (status == -ESHUTDOWN)
+			return;
+		err("%s: urb status %d", __func__, status);
+	}
+
+	/* Special keys */
+	if (dev->irq_data->byte[HID_IR0] & 0x0f) {
+		const int code = (dev->irq_data->byte[HID_IR0] & 0x0f);
+		report_key(dev, dev->keymap[0xff + code]);
+	}
+
+	/* Scan key column */
+	if (dev->keybit == 0xf) {
+
+		/* Any changes ? */
+		if ((dev->gpi & 0xf0) == (dev->irq_data->byte[HID_IR1] & 0xf0))
+			goto out;
+
+		dev->gpi = dev->irq_data->byte[HID_IR1] & 0xf0;
+		dev->keybit = 0x1;
+	} else {
+		report_key(dev, dev->keymap[dev->irq_data->byte[HID_IR1]]);
+
+		dev->keybit <<= 1;
+		if (dev->keybit > 0x8)
+			dev->keybit = 0xf;
+	}
+
+ out:
+
+	spin_lock(&dev->ctl_submit_lock);
+
+	dev->irq_urb_pending = 0;
+
+	if (likely(!dev->shutdown)) {
+
+		if (dev->buzzer_state)
+			dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
+		else
+			dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
+
+		dev->ctl_data->byte[HID_OR1] = dev->keybit;
+		dev->ctl_data->byte[HID_OR2] = dev->keybit;
+
+		dev->buzzer_pending = 0;
+		dev->ctl_urb_pending = 1;
+
+		error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC);
+		if (error)
+			err("%s: usb_submit_urb (urb_ctl) failed %d",
+				__func__, error);
+	}
+
+	spin_unlock(&dev->ctl_submit_lock);
+}
+
+static void cm109_urb_ctl_callback(struct urb *urb)
+{
+	struct cm109_dev *dev = urb->context;
+	const int status = urb->status;
+	int error;
+
+	dev_dbg(&urb->dev->dev, "### URB CTL: [0x%02x 0x%02x 0x%02x 0x%02x]\n",
+	     dev->ctl_data->byte[0],
+	     dev->ctl_data->byte[1],
+	     dev->ctl_data->byte[2],
+	     dev->ctl_data->byte[3]);
+
+	if (status)
+		err("%s: urb status %d", __func__, status);
+
+	spin_lock(&dev->ctl_submit_lock);
+
+	dev->ctl_urb_pending = 0;
+
+	if (likely(!dev->shutdown)) {
+
+		if (dev->buzzer_pending) {
+			dev->buzzer_pending = 0;
+			dev->ctl_urb_pending = 1;
+			cm109_submit_buzz_toggle(dev);
+		} else if (likely(!dev->irq_urb_pending)) {
+			/* ask for key data */
+			dev->irq_urb_pending = 1;
+			error = usb_submit_urb(dev->urb_irq, GFP_ATOMIC);
+			if (error)
+				err("%s: usb_submit_urb (urb_irq) failed %d",
+					__func__, error);
+		}
+	}
+
+	spin_unlock(&dev->ctl_submit_lock);
+}
+
+static void cm109_toggle_buzzer_async(struct cm109_dev *dev)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&dev->ctl_submit_lock, flags);
+
+	if (dev->ctl_urb_pending) {
+		/* URB completion will resubmit */
+		dev->buzzer_pending = 1;
+	} else {
+		dev->ctl_urb_pending = 1;
+		cm109_submit_buzz_toggle(dev);
+	}
+
+	spin_unlock_irqrestore(&dev->ctl_submit_lock, flags);
+}
+
+static void cm109_toggle_buzzer_sync(struct cm109_dev *dev, int on)
+{
+	int error;
+
+	if (on)
+		dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
+	else
+		dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
+
+	error = usb_control_msg(dev->udev,
+				usb_sndctrlpipe(dev->udev, 0),
+				dev->ctl_req->bRequest,
+				dev->ctl_req->bRequestType,
+				le16_to_cpu(dev->ctl_req->wValue),
+				le16_to_cpu(dev->ctl_req->wIndex),
+				dev->ctl_data,
+				USB_PKT_LEN, USB_CTRL_SET_TIMEOUT);
+	if (error && error != EINTR)
+		err("%s: usb_control_msg() failed %d", __func__, error);
+}
+
+static void cm109_stop_traffic(struct cm109_dev *dev)
+{
+	dev->shutdown = 1;
+	/*
+	 * Make sure other CPUs see this
+	 */
+	smp_wmb();
+
+	usb_kill_urb(dev->urb_ctl);
+	usb_kill_urb(dev->urb_irq);
+
+	cm109_toggle_buzzer_sync(dev, 0);
+
+	dev->shutdown = 0;
+	smp_wmb();
+}
+
+static void cm109_restore_state(struct cm109_dev *dev)
+{
+	if (dev->open) {
+		/*
+		 * Restore buzzer state.
+		 * This will also kick regular URB submission
+		 */
+		cm109_toggle_buzzer_async(dev);
+	}
+}
+
+/******************************************************************************
+ * input event interface
+ *****************************************************************************/
+
+static int cm109_input_open(struct input_dev *idev)
+{
+	struct cm109_dev *dev = input_get_drvdata(idev);
+	int error;
+
+	error = usb_autopm_get_interface(dev->intf);
+	if (error < 0) {
+		err("%s - cannot autoresume, result %d",
+		    __func__, error);
+		return error;
+	}
+
+	mutex_lock(&dev->pm_mutex);
+
+	dev->buzzer_state = 0;
+	dev->key_code = -1;	/* no keys pressed */
+	dev->keybit = 0xf;
+
+	/* issue INIT */
+	dev->ctl_data->byte[HID_OR0] = HID_OR_GPO_BUZ_SPDIF;
+	dev->ctl_data->byte[HID_OR1] = dev->keybit;
+	dev->ctl_data->byte[HID_OR2] = dev->keybit;
+	dev->ctl_data->byte[HID_OR3] = 0x00;
+
+	error = usb_submit_urb(dev->urb_ctl, GFP_KERNEL);
+	if (error)
+		err("%s: usb_submit_urb (urb_ctl) failed %d", __func__, error);
+	else
+		dev->open = 1;
+
+	mutex_unlock(&dev->pm_mutex);
+
+	if (error)
+		usb_autopm_put_interface(dev->intf);
+
+	return error;
+}
+
+static void cm109_input_close(struct input_dev *idev)
+{
+	struct cm109_dev *dev = input_get_drvdata(idev);
+
+	mutex_lock(&dev->pm_mutex);
+
+	/*
+	 * Once we are here event delivery is stopped so we
+	 * don't need to worry about someone starting buzzer
+	 * again
+	 */
+	cm109_stop_traffic(dev);
+	dev->open = 0;
+
+	mutex_unlock(&dev->pm_mutex);
+
+	usb_autopm_put_interface(dev->intf);
+}
+
+static int cm109_input_ev(struct input_dev *idev, unsigned int type,
+			  unsigned int code, int value)
+{
+	struct cm109_dev *dev = input_get_drvdata(idev);
+
+	dev_dbg(&dev->udev->dev,
+		"input_ev: type=%u code=%u value=%d\n", type, code, value);
+
+	if (type != EV_SND)
+		return -EINVAL;
+
+	switch (code) {
+	case SND_TONE:
+	case SND_BELL:
+		dev->buzzer_state = !!value;
+		if (!dev->resetting)
+			cm109_toggle_buzzer_async(dev);
+		return 0;