[PATCH] Generic HID layer - code split

The "big main" split of USB HID code into generic HID code and
USB-transport specific HID handling.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 840 insertions, 0 deletions

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
new file mode 100644
index 00000000000..d459005062e
--- /dev/null
+++ b/drivers/hid/hid-input.c
@@ -0,0 +1,840 @@
+/*
+ * $Id: hid-input.c,v 1.2 2002/04/23 00:59:25 rdamazio Exp $
+ *
+ *  Copyright (c) 2000-2001 Vojtech Pavlik
+ *  Copyright (c) 2006 Jiri Kosina
+ *
+ *  HID to Linux Input mapping
+ */
+
+/*
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/usb/input.h>
+
+#undef DEBUG
+
+#include <linux/hid.h>
+
+#define unk	KEY_UNKNOWN
+
+static const unsigned char hid_keyboard[256] = {
+	  0,  0,  0,  0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
+	 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44,  2,  3,
+	  4,  5,  6,  7,  8,  9, 10, 11, 28,  1, 14, 15, 57, 12, 13, 26,
+	 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
+	 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
+	105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
+	 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
+	191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
+	115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
+	122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
+	unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
+	unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
+	unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
+	unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
+	 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
+	150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
+};
+
+static const struct {
+	__s32 x;
+	__s32 y;
+}  hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
+
+#define map_abs(c)	do { usage->code = c; usage->type = EV_ABS; bit = input->absbit; max = ABS_MAX; } while (0)
+#define map_rel(c)	do { usage->code = c; usage->type = EV_REL; bit = input->relbit; max = REL_MAX; } while (0)
+#define map_key(c)	do { usage->code = c; usage->type = EV_KEY; bit = input->keybit; max = KEY_MAX; } while (0)
+#define map_led(c)	do { usage->code = c; usage->type = EV_LED; bit = input->ledbit; max = LED_MAX; } while (0)
+
+#define map_abs_clear(c)	do { map_abs(c); clear_bit(c, bit); } while (0)
+#define map_key_clear(c)	do { map_key(c); clear_bit(c, bit); } while (0)
+
+#ifdef CONFIG_USB_HIDINPUT_POWERBOOK
+
+struct hidinput_key_translation {
+	u16 from;
+	u16 to;
+	u8 flags;
+};
+
+#define POWERBOOK_FLAG_FKEY 0x01
+
+static struct hidinput_key_translation powerbook_fn_keys[] = {
+	{ KEY_BACKSPACE, KEY_DELETE },
+	{ KEY_F1,       KEY_BRIGHTNESSDOWN,     POWERBOOK_FLAG_FKEY },
+	{ KEY_F2,       KEY_BRIGHTNESSUP,       POWERBOOK_FLAG_FKEY },
+	{ KEY_F3,       KEY_MUTE,               POWERBOOK_FLAG_FKEY },
+	{ KEY_F4,       KEY_VOLUMEDOWN,         POWERBOOK_FLAG_FKEY },
+	{ KEY_F5,       KEY_VOLUMEUP,           POWERBOOK_FLAG_FKEY },
+	{ KEY_F6,       KEY_NUMLOCK,            POWERBOOK_FLAG_FKEY },
+	{ KEY_F7,       KEY_SWITCHVIDEOMODE,    POWERBOOK_FLAG_FKEY },
+	{ KEY_F8,       KEY_KBDILLUMTOGGLE,     POWERBOOK_FLAG_FKEY },
+	{ KEY_F9,       KEY_KBDILLUMDOWN,       POWERBOOK_FLAG_FKEY },
+	{ KEY_F10,      KEY_KBDILLUMUP,         POWERBOOK_FLAG_FKEY },
+	{ KEY_UP,       KEY_PAGEUP },
+	{ KEY_DOWN,     KEY_PAGEDOWN },
+	{ KEY_LEFT,     KEY_HOME },
+	{ KEY_RIGHT,    KEY_END },
+	{ }
+};
+
+static struct hidinput_key_translation powerbook_numlock_keys[] = {
+	{ KEY_J,        KEY_KP1 },
+	{ KEY_K,        KEY_KP2 },
+	{ KEY_L,        KEY_KP3 },
+	{ KEY_U,        KEY_KP4 },
+	{ KEY_I,        KEY_KP5 },
+	{ KEY_O,        KEY_KP6 },
+	{ KEY_7,        KEY_KP7 },
+	{ KEY_8,        KEY_KP8 },
+	{ KEY_9,        KEY_KP9 },
+	{ KEY_M,        KEY_KP0 },
+	{ KEY_DOT,      KEY_KPDOT },
+	{ KEY_SLASH,    KEY_KPPLUS },
+	{ KEY_SEMICOLON, KEY_KPMINUS },
+	{ KEY_P,        KEY_KPASTERISK },
+	{ KEY_MINUS,    KEY_KPEQUAL },
+	{ KEY_0,        KEY_KPSLASH },
+	{ KEY_F6,       KEY_NUMLOCK },
+	{ KEY_KPENTER,  KEY_KPENTER },
+	{ KEY_BACKSPACE, KEY_BACKSPACE },
+	{ }
+};
+
+static struct hidinput_key_translation powerbook_iso_keyboard[] = {
+	{ KEY_GRAVE,    KEY_102ND },
+	{ KEY_102ND,    KEY_GRAVE },
+	{ }
+};
+
+
+static int usbhid_pb_fnmode = 1;
+module_param_named(pb_fnmode, usbhid_pb_fnmode, int, 0644);
+MODULE_PARM_DESC(pb_fnmode,
+		"Mode of fn key on PowerBooks (0 = disabled, 1 = fkeyslast, 2 = fkeysfirst)");
+
+static struct hidinput_key_translation *find_translation(struct hidinput_key_translation *table, u16 from)
+{
+	struct hidinput_key_translation *trans;
+
+	/* Look for the translation */
+	for (trans = table; trans->from; trans++)
+		if (trans->from == from)
+			return trans;
+
+	return NULL;
+}
+
+static int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
+		struct hid_usage *usage, __s32 value)
+{
+	struct hidinput_key_translation *trans;
+
+	if (usage->code == KEY_FN) {
+		if (value) hid->quirks |=  HID_QUIRK_POWERBOOK_FN_ON;
+		else       hid->quirks &= ~HID_QUIRK_POWERBOOK_FN_ON;
+
+		input_event(input, usage->type, usage->code, value);
+
+		return 1;
+	}
+
+	if (usbhid_pb_fnmode) {
+		int do_translate;
+
+		trans = find_translation(powerbook_fn_keys, usage->code);
+		if (trans) {
+			if (test_bit(usage->code, hid->pb_pressed_fn))
+				do_translate = 1;
+			else if (trans->flags & POWERBOOK_FLAG_FKEY)
+				do_translate =
+					(usbhid_pb_fnmode == 2 &&  (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON)) ||
+					(usbhid_pb_fnmode == 1 && !(hid->quirks & HID_QUIRK_POWERBOOK_FN_ON));
+			else
+				do_translate = (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON);
+
+			if (do_translate) {
+				if (value)
+					set_bit(usage->code, hid->pb_pressed_fn);
+				else
+					clear_bit(usage->code, hid->pb_pressed_fn);
+
+				input_event(input, usage->type, trans->to, value);
+
+				return 1;
+			}
+		}
+
+		if (test_bit(usage->code, hid->pb_pressed_numlock) ||
+				test_bit(LED_NUML, input->led)) {
+			trans = find_translation(powerbook_numlock_keys, usage->code);
+
+			if (trans) {
+				if (value)
+					set_bit(usage->code, hid->pb_pressed_numlock);
+				else
+					clear_bit(usage->code, hid->pb_pressed_numlock);
+
+				input_event(input, usage->type, trans->to, value);
+			}
+
+			return 1;
+		}
+	}
+
+	if (hid->quirks & HID_QUIRK_POWERBOOK_ISO_KEYBOARD) {
+		trans = find_translation(powerbook_iso_keyboard, usage->code);
+		if (trans) {
+			input_event(input, usage->type, trans->to, value);
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+static void hidinput_pb_setup(struct input_dev *input)
+{
+	struct hidinput_key_translation *trans;
+
+	set_bit(KEY_NUMLOCK, input->keybit);
+
+	/* Enable all needed keys */
+	for (trans = powerbook_fn_keys; trans->from; trans++)
+		set_bit(trans->to, input->keybit);
+
+	for (trans = powerbook_numlock_keys; trans->from; trans++)
+		set_bit(trans->to, input->keybit);
+
+	for (trans = powerbook_iso_keyboard; trans->from; trans++)
+		set_bit(trans->to, input->keybit);
+
+}
+#else
+static inline int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
+		struct hid_usage *usage, __s32 value)
+{
+	return 0;
+}
+
+static inline void hidinput_pb_setup(struct input_dev *input)
+{
+}
+#endif
+
+static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
+				     struct hid_usage *usage)
+{
+	struct input_dev *input = hidinput->input;
+	struct hid_device *device = input->private;
+	int max = 0, code;
+	unsigned long *bit = NULL;
+
+	field->hidinput = hidinput;
+
+#ifdef DEBUG
+	printk(KERN_DEBUG "Mapping: ");
+	resolv_usage(usage->hid);
+	printk(" ---> ");
+#endif
+
+	if (field->flags & HID_MAIN_ITEM_CONSTANT)
+		goto ignore;
+
+	switch (usage->hid & HID_USAGE_PAGE) {
+
+		case HID_UP_UNDEFINED:
+			goto ignore;
+
+		case HID_UP_KEYBOARD:
+
+			set_bit(EV_REP, input->evbit);
+
+			if ((usage->hid & HID_USAGE) < 256) {
+				if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
+				map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
+			} else
+				map_key(KEY_UNKNOWN);
+
+			break;
+
+		case HID_UP_BUTTON:
+
+			code = ((usage->hid - 1) & 0xf);
+
+			switch (field->application) {
+				case HID_GD_MOUSE:
+				case HID_GD_POINTER:  code += 0x110; break;
+				case HID_GD_JOYSTICK: code += 0x120; break;
+				case HID_GD_GAMEPAD:  code += 0x130; break;
+				default:
+					switch (field->physical) {
+						case HID_GD_MOUSE:
+						case HID_GD_POINTER:  code += 0x110; break;
+						case HID_GD_JOYSTICK: code += 0x120; break;
+						case HID_GD_GAMEPAD:  code += 0x130; break;
+						default:              code += 0x100;
+					}
+			}
+
+			map_key(code);
+			break;
+
+
+		case HID_UP_SIMULATION:
+
+			switch (usage->hid & 0xffff) {
+				case 0xba: map_abs(ABS_RUDDER);   break;
+				case 0xbb: map_abs(ABS_THROTTLE); break;
+				case 0xc4: map_abs(ABS_GAS);      break;
+				case 0xc5: map_abs(ABS_BRAKE);    break;
+				case 0xc8: map_abs(ABS_WHEEL);    break;
+				default:   goto ignore;
+			}
+			break;
+
+		case HID_UP_GENDESK:
+
+			if ((usage->hid & 0xf0) == 0x80) {	/* SystemControl */
+				switch (usage->hid & 0xf) {
+					case 0x1: map_key_clear(KEY_POWER);  break;
+					case 0x2: map_key_clear(KEY_SLEEP);  break;
+					case 0x3: map_key_clear(KEY_WAKEUP); break;
+					default: goto unknown;
+				}
+				break;
+			}
+
+			if ((usage->hid & 0xf0) == 0x90) {	/* D-pad */
+				switch (usage->hid) {
+					case HID_GD_UP:	   usage->hat_dir = 1; break;
+					case HID_GD_DOWN:  usage->hat_dir = 5; break;
+					case HID_GD_RIGHT: usage->hat_dir = 3; break;
+					case HID_GD_LEFT:  usage->hat_dir = 7; break;
+					default: goto unknown;
+				}
+				if (field->dpad) {
+					map_abs(field->dpad);
+					goto ignore;
+				}
+				map_abs(ABS_HAT0X);
+				break;
+			}
+
+			switch (usage->hid) {
+
+				/* These usage IDs map directly to the usage codes. */
+				case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
+				case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
+				case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL:
+					if (field->flags & HID_MAIN_ITEM_RELATIVE)
+						map_rel(usage->hid & 0xf);
+					else
+						map_abs(usage->hid & 0xf);
+					break;
+
+				case HID_GD_HATSWITCH:
+					usage->hat_min = field->logical_minimum;
+					usage->hat_max = field->logical_maximum;
+					map_abs(ABS_HAT0X);
+					break;
+
+				case HID_GD_START:	map_key_clear(BTN_START);	break;
+				case HID_GD_SELECT:	map_key_clear(BTN_SELECT);	break;
+
+				default: goto unknown;
+			}
+
+			break;
+
+		case HID_UP_LED:
+			if (((usage->hid - 1) & 0xffff) >= LED_MAX)
+				goto ignore;
+			map_led((usage->hid - 1) & 0xffff);
+			break;
+
+		case HID_UP_DIGITIZER:
+
+			switch (usage->hid & 0xff) {
+
+				case 0x30: /* TipPressure */
+					if (!test_bit(BTN_TOUCH, input->keybit)) {
+						device->quirks |= HID_QUIRK_NOTOUCH;
+						set_bit(EV_KEY, input->evbit);
+						set_bit(BTN_TOUCH, input->keybit);
+					}
+
+					map_abs_clear(ABS_PRESSURE);
+					break;
+
+				case 0x32: /* InRange */
+					switch (field->physical & 0xff) {
+						case 0x21: map_key(BTN_TOOL_MOUSE); break;
+						case 0x22: map_key(BTN_TOOL_FINGER); break;
+						default: map_key(BTN_TOOL_PEN); break;
+					}
+					break;
+
+				case 0x3c: /* Invert */
+					map_key_clear(BTN_TOOL_RUBBER);
+					break;
+
+				case 0x33: /* Touch */
+				case 0x42: /* TipSwitch */
+				case 0x43: /* TipSwitch2 */
+					device->quirks &= ~HID_QUIRK_NOTOUCH;
+					map_key_clear(BTN_TOUCH);
+					break;
+
+				case 0x44: /* BarrelSwitch */
+					map_key_clear(BTN_STYLUS);
+					break;
+
+				default:  goto unknown;
+			}
+			break;
+
+		case HID_UP_CONSUMER:	/* USB HUT v1.1, pages 56-62 */
+
+			switch (usage->hid & HID_USAGE) {
+				case 0x000: goto ignore;
+				case 0x034: map_key_clear(KEY_SLEEP);		break;
+				case 0x036: map_key_clear(BTN_MISC);		break;
+				case 0x045: map_key_clear(KEY_RADIO);		break;
+				case 0x08a: map_key_clear(KEY_WWW);		break;
+				case 0x08d: map_key_clear(KEY_PROGRAM);		break;
+				case 0x095: map_key_clear(KEY_HELP);		break;
+				case 0x09c: map_key_clear(KEY_CHANNELUP);	break;
+				case 0x09d: map_key_clear(KEY_CHANNELDOWN);	break;
+				case 0x0b0: map_key_clear(KEY_PLAY);		break;
+				case 0x0b1: map_key_clear(KEY_PAUSE);		break;
+				case 0x0b2: map_key_clear(KEY_RECORD);		break;
+				case 0x0b3: map_key_clear(KEY_FASTFORWARD);	break;
+				case 0x0b4: map_key_clear(KEY_REWIND);		break;
+				case 0x0b5: map_key_clear(KEY_NEXTSONG);	break;
+				case 0x0b6: map_key_clear(KEY_PREVIOUSSONG);	break;
+				case 0x0b7: map_key_clear(KEY_STOPCD);		break;
+				case 0x0b8: map_key_clear(KEY_EJECTCD);		break;
+				case 0x0cd: map_key_clear(KEY_PLAYPAUSE);	break;
+			        case 0x0e0: map_abs_clear(ABS_VOLUME);		break;
+				case 0x0e2: map_key_clear(KEY_MUTE);		break;
+				case 0x0e5: map_key_clear(KEY_BASSBOOST);	break;
+				case 0x0e9: map_key_clear(KEY_VOLUMEUP);	break;
+				case 0x0ea: map_key_clear(KEY_VOLUMEDOWN);	break;
+				case 0x183: map_key_clear(KEY_CONFIG);		break;
+				case 0x18a: map_key_clear(KEY_MAIL);		break;
+				case 0x192: map_key_clear(KEY_CALC);		break;
+				case 0x194: map_key_clear(KEY_FILE);		break;
+				case 0x1a7: map_key_clear(KEY_DOCUMENTS);	break;
+				case 0x201: map_key_clear(KEY_NEW);		break;
+				case 0x207: map_key_clear(KEY_SAVE);		break;
+				case 0x208: map_key_clear(KEY_PRINT);		break;
+				case 0x209: map_key_clear(KEY_PROPS);		break;
+				case 0x21a: map_key_clear(KEY_UNDO);		break;
+				case 0x21b: map_key_clear(KEY_COPY);		break;
+				case 0x21c: map_key_clear(KEY_CUT);		break;
+				case 0x21d: map_key_clear(KEY_PASTE);		break;
+				case 0x221: map_key_clear(KEY_FIND);		break;
+				case 0x223: map_key_clear(KEY_HOMEPAGE);	break;
+				case 0x224: map_key_clear(KEY_BACK);		break;
+				case 0x225: map_key_clear(KEY_FORWARD);		break;
+				case 0x226: map_key_clear(KEY_STOP);		break;
+				case 0x227: map_key_clear(KEY_REFRESH);		break;
+				case 0x22a: map_key_clear(KEY_BOOKMARKS);	break;
+				case 0x233: map_key_clear(KEY_SCROLLUP);	break;
+				case 0x234: map_key_clear(KEY_SCROLLDOWN);	break;
+				case 0x238: map_rel(REL_HWHEEL);		break;
+				case 0x279: map_key_clear(KEY_REDO);		break;
+				case 0x289: map_key_clear(KEY_REPLY);		break;
+				case 0x28b: map_key_clear(KEY_FORWARDMAIL);	break;
+				case 0x28c: map_key_clear(KEY_SEND);		break;
+
+				/* Reported on a Cherry Cymotion keyboard */
+				case 0x301: map_key_clear(KEY_PROG1);		break;
+				case 0x302: map_key_clear(KEY_PROG2);		break;
+				case 0x303: map_key_clear(KEY_PROG3);		break;
+
+				default:    goto ignore;
+			}
+			break;
+
+		case HID_UP_HPVENDOR:	/* Reported on a Dutch layout HP5308 */
+
+			set_bit(EV_REP, input->evbit);
+			switch (usage->hid & HID_USAGE) {
+			        case 0x021: map_key_clear(KEY_PRINT);           break;
+				case 0x070: map_key_clear(KEY_HP);		break;
+				case 0x071: map_key_clear(KEY_CAMERA);		break;
+				case 0x072: map_key_clear(KEY_SOUND);		break;
+				case 0x073: map_key_clear(KEY_QUESTION);	break;
+				case 0x080: map_key_clear(KEY_EMAIL);		break;
+				case 0x081: map_key_clear(KEY_CHAT);		break;
+				case 0x082: map_key_clear(KEY_SEARCH);		break;
+				case 0x083: map_key_clear(KEY_CONNECT);	        break;
+				case 0x084: map_key_clear(KEY_FINANCE);		break;
+				case 0x085: map_key_clear(KEY_SPORT);		break;
+				case 0x086: map_key_clear(KEY_SHOP);	        break;
+				default:    goto ignore;
+			}
+			break;
+
+		case HID_UP_MSVENDOR:
+			goto ignore;
+
+		case HID_UP_CUSTOM: /* Reported on Logitech and Powerbook USB keyboards */
+
+			set_bit(EV_REP, input->evbit);
+			switch(usage->hid & HID_USAGE) {
+				case 0x003:
+					/* The fn key on Apple PowerBooks */
+					map_key_clear(KEY_FN);
+					hidinput_pb_setup(input);
+					break;
+
+				default:    goto ignore;
+			}
+			break;
+
+		case HID_UP_LOGIVENDOR: /* Reported on Logitech Ultra X Media Remote */
+
+			set_bit(EV_REP, input->evbit);
+			switch(usage->hid & HID_USAGE) {
+				case 0x004: map_key_clear(KEY_AGAIN);		break;
+				case 0x00d: map_key_clear(KEY_HOME);		break;
+				case 0x024: map_key_clear(KEY_SHUFFLE);		break;
+				case 0x025: map_key_clear(KEY_TV);		break;
+				case 0x026: map_key_clear(KEY_MENU);		break;
+				case 0x031: map_key_clear(KEY_AUDIO);		break;
+				case 0x032: map_key_clear(KEY_TEXT);		break;
+				case 0x033: map_key_clear(KEY_LAST);		break;
+				case 0x047: map_key_clear(KEY_MP3);		break;
+				case 0x048: map_key_clear(KEY_DVD);		break;
+				case 0x049: map_key_clear(KEY_MEDIA);		break;
+				case 0x04a: map_key_clear(KEY_VIDEO);		break;
+				case 0x04b: map_key_clear(KEY_ANGLE);		break;
+				case 0x04c: map_key_clear(KEY_LANGUAGE);	break;
+				case 0x04d: map_key_clear(KEY_SUBTITLE);	break;
+				case 0x051: map_key_clear(KEY_RED);		break;
+				case 0x052: map_key_clear(KEY_CLOSE);		break;
+				default:    goto ignore;
+			}
+			break;
+
+		case HID_UP_PID:
+
+			switch(usage->hid & HID_USAGE) {
+				case 0xa4: map_key_clear(BTN_DEAD);	break;
+				default: goto ignore;
+			}
+			break;
+
+		default:
+		unknown:
+			if (field->report_size == 1) {
+				if (field->report->type == HID_OUTPUT_REPORT) {
+					map_led(LED_MISC);
+					break;
+				}
+				map_key(BTN_MISC);
+				break;
+			}
+			if (field->flags & HID_MAIN_ITEM_RELATIVE) {
+				map_rel(REL_MISC);
+				break;
+			}
+			map_abs(ABS_MISC);
+			break;
+	}
+
+	if (device->quirks & HID_QUIRK_MIGHTYMOUSE) {
+		if (usage->hid == HID_GD_Z)
+			map_rel(REL_HWHEEL);
+		else if (usage->code == BTN_1)
+			map_key(BTN_2);
+		else if (usage->code == BTN_2)
+			map_key(BTN_1);
+	}
+
+	if ((device->quirks & (HID_QUIRK_2WHEEL_MOUSE_HACK_7 | HID_QUIRK_2WHEEL_MOUSE_HACK_5)) &&
+		 (usage->type == EV_REL) && (usage->code == REL_WHEEL))
+			set_bit(REL_HWHEEL, bit);
+
+	if (((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
+		|| ((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007)))
+		goto ignore;
+
+	if ((device->quirks & HID_QUIRK_BAD_RELATIVE_KEYS) &&
+		usage->type == EV_KEY && (field->flags & HID_MAIN_ITEM_RELATIVE))
+		field->flags &= ~HID_MAIN_ITEM_RELATIVE;
+
+	set_bit(usage->type, input->evbit);
+
+	while (usage->code <= max && test_and_set_bit(usage->code, bit))
+		usage->code = find_next_zero_bit(bit, max + 1, usage->code);
+
+	if (usage->code > max)
+		goto ignore;
+
+
+	if (usage->type == EV_ABS) {
+
+		int a = field->logical_minimum;
+		int b = field->logical_maximum;
+
+		if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
+			a = field->logical_minimum = 0;
+			b = field->logical_maximum = 255;
+		}
+
+		if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
+			input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
+		else	input_set_abs_params(input, usage->code, a, b, 0, 0);
+
+	}
+
+	if (usage->type == EV_ABS &&
+	    (usage->hat_min < usage->hat_max || usage->hat_dir)) {
+		int i;
+		for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
+			input_set_abs_params(input, i, -1, 1, 0, 0);
+			set_bit(i, input->absbit);
+		}
+		if (usage->hat_dir && !field->dpad)
+			field->dpad = usage->code;
+	}
+
+#ifdef DEBUG
+	resolv_event(usage->type, usage->code);
+	printk("\n");
+#endif
+	return;
+
+ignore:
+#ifdef DEBUG
+	printk("IGNORED\n");
+#endif
+	return;
+}
+
+void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
+{
+	struct input_dev *input;
+	int *quirks = &hid->quirks;
+
+	if (!field->hidinput)
+		return;
+
+	input = field->hidinput->input;
+
+	if (!usage->type)
+		return;
+
+	if (((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005))
+		|| ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007))) {
+		if (value) hid->quirks |=  HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
+		else       hid->quirks &= ~HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
+		return;
+	}
+
+	if ((hid->quirks & HID_QUIRK_INVERT_HWHEEL) && (usage->code == REL_HWHEEL)) {
+		input_event(input, usage->type, usage->code, -value);
+		return;
+	}
+
+	if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_ON) && (usage->code == REL_WHEEL)) {
+		input_event(input, usage->type, REL_HWHEEL, value);
+		return;
+	}
+
+	if ((hid->quirks & HID_QUIRK_POWERBOOK_HAS_FN) && hidinput_pb_event(hid, input, usage, value))
+		return;
+
+	if (usage->hat_min < usage->hat_max || usage->hat_dir) {
+		int hat_dir = usage->hat_dir;
+		if (!hat_dir)
+			hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
+		if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
+		input_event(input, usage->type, usage->code    , hid_hat_to_axis[hat_dir].x);
+                input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
+                return;
+        }
+
+	if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */
+		*quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT);
+		return;
+	}
+
+	if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */
+		if (value) {
+			input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1);
+			return;
+		}
+		input_event(input, usage->type, usage->code, 0);
+		input_event(input, usage->type, BTN_TOOL_RUBBER, 0);
+		return;
+	}
+
+	if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */
+		int a = field->logical_minimum;
+		int b = field->logical_maximum;
+		input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3));
+	}
+
+	if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
+		dbg("Maximum Effects - %d",value);
+		return;
+	}
+
+	if (usage->hid == (HID_UP_PID | 0x7fUL)) {
+		dbg("PID Pool Report\n");
+		return;
+	}
+
+	if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */
+		return;
+
+	input_event(input, usage->type, usage->code, value);
+
+	if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY))
+		input_event(input, usage->type, usage->code, 0);
+}
+
+void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
+{
+	struct hid_input *hidinput;
+
+	list_for_each_entry(hidinput, &hid->inputs, list)
+		input_sync(hidinput->input);
+}
+
+static int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field)
+{
+	struct hid_report *report;
+	int i, j;
+
+	list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
+		for (i = 0; i < report->maxfield; i++) {
+			*field = report->field[i];
+			for (j = 0; j < (*field)->maxusage; j++)
+				if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
+					return j;
+		}
+	}
+	return -1;
+}
+
+/*
+ * Register the input device; print a message.
+ * Configure the input layer interface
+ * Read all reports and initialize the absolute field values.
+ */
+
+int hidinput_connect(struct hid_device *hid)
+{
+	struct usb_device *dev = hid->dev;
+	struct hid_report *report;
+	struct hid_input *hidinput = NULL;
+	struct input_dev *input_dev;
+	int i, j, k;
+
+	INIT_LIST_HEAD(&hid->inputs);
+
+	for (i = 0; i < hid->maxcollection; i++)
+		if (hid->collection[i].type == HID_COLLECTION_APPLICATION ||
+		    hid->collection[i].type == HID_COLLECTION_PHYSICAL)
+			if (IS_INPUT_APPLICATION(hid->collection[i].usage))
+				break;
+
+	if (i == hid->maxcollection)
+		return -1;
+
+	for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++)
+		list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
+
+			if (!report->maxfield)
+				continue;
+
+			if (!hidinput) {
+				hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
+				input_dev = input_allocate_device();
+				if (!hidinput || !input_dev) {
+					kfree(hidinput);
+					input_free_device(input_dev);
+					err("Out of memory during hid input probe");
+					return -1;
+				}
+
+				input_dev->private = hid;
+				input_dev->event = hidinput_input_event;
+				input_dev->open = hidinput_open;
+				input_dev->close = hidinput_close;
+
+				input_dev->name = hid->name;
+				input_dev->phys = hid->phys;
+				input_dev->uniq = hid->uniq;
+				usb_to_input_id(dev, &input_dev->id);
+				input_dev->cdev.dev = &hid->intf->dev;
+
+				hidinput->input = input_dev;
+				list_add_tail(&hidinput->list, &hid->inputs);
+			}
+
+			for (i = 0; i < report->maxfield; i++)
+				for (j = 0; j < report->field[i]->maxusage; j++)
+					hidinput_configure_usage(hidinput, report->field[i],
+								 report->field[i]->usage + j);
+
+			if (hid->quirks & HID_QUIRK_MULTI_INPUT) {
+				/* This will leave hidinput NULL, so that it
+				 * allocates another one if we have more inputs on
+				 * the same interface. Some devices (e.g. Happ's
+				 * UGCI) cram a lot of unrelated inputs into the
+				 * same interface. */
+				hidinput->report = report;
+				input_register_device(hidinput->input);
+				hidinput = NULL;
+			}
+		}
+
+	/* This only gets called when we are a single-input (most of the
+	 * time). IOW, not a HID_QUIRK_MULTI_INPUT. The hid_ff_init() is
+	 * only useful in this case, and not for multi-input quirks. */
+	if (hidinput) {
+		hid_ff_init(hid);
+		input_register_device(hidinput->input);
+	}
+
+	return 0;
+}
+
+void hidinput_disconnect(struct hid_device *hid)
+{
+	struct hid_input *hidinput, *next;
+
+	list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
+		list_del(&hidinput->list);
+		input_unregister_device(hidinput->input);
+		kfree(hidinput);
+	}
+}