/*
 *  HID-input usage mapping quirks
 *
 *  This is used to handle HID-input mappings for devices violating
 *  HUT 1.12 specification.
 *
 * Copyright (c) 2007-2008 Jiri Kosina
 */

/*
 * 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
 */

#include <linux/input.h>
#include <linux/hid.h>

#define map_rel(c)	hid_map_usage(hidinput, usage, bit, max, EV_REL, (c))
#define map_key(c)	hid_map_usage(hidinput, usage, bit, max, EV_KEY, (c))

#define map_key_clear(c)	hid_map_usage_clear(hidinput, usage, bit, \
		max, EV_KEY, (c))

static int quirk_belkin_wkbd(struct hid_usage *usage,
		struct hid_input *hidinput, unsigned long **bit, int *max)
{
	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
		return 0;

	switch (usage->hid & HID_USAGE) {
		case 0x03a: map_key_clear(KEY_SOUND);		break;
		case 0x03b: map_key_clear(KEY_CAMERA);		break;
		case 0x03c: map_key_clear(KEY_DOCUMENTS);	break;
		default:
			return 0;
	}
	return 1;
}

static int quirk_cherry_cymotion(struct hid_usage *usage,
		struct hid_input *hidinput, unsigned long **bit, int *max)
{
	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
		return 0;

	switch (usage->hid & HID_USAGE) {
		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:
			return 0;
	}
	return 1;
}

static int quirk_gyration_remote(struct hid_usage *usage,
		struct hid_input *hidinput, unsigned long **bit, int *max)
{
	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
		return 0;

	set_bit(EV_REP, hidinput->input->evbit);
	switch(usage->hid & HID_USAGE) {
		/* Reported on Gyration MCE Remote */
		case 0x00d: map_key_clear(KEY_HOME);		break;
		case 0x024: map_key_clear(KEY_DVD);		break;
		case 0x025: map_key_clear(KEY_PVR);		break;
		case 0x046: map_key_clear(KEY_MEDIA);		break;
		case 0x047: map_key_clear(KEY_MP3);		break;
		case 0x049: map_key_clear(KEY_CAMERA);		break;
		case 0x04a: map_key_clear(KEY_VIDEO);		break;

		default:
			return 0;
	}
	return 1;
}

static int quirk_chicony_tactical_pad(struct hid_usage *usage,
		struct hid_input *hidinput, unsigned long **bit, int *max)
{
	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
		return 0;

	set_bit(EV_REP, hidinput->input->evbit);
	switch (usage->hid & HID_USAGE) {
		case 0xff01: map_key_clear(BTN_1);		break;
		case 0xff02: map_key_clear(BTN_2);		break;
		case 0xff03: map_key_clear(BTN_3);		break;
		case 0xff04: map_key_clear(BTN_4);		break;
		case 0xff05: map_key_clear(BTN_5);		break;
		case 0xff06: map_key_clear(BTN_6);		break;
		case 0xff07: map_key_clear(BTN_7);		break;
		case 0xff08: map_key_clear(BTN_8);		break;
		case 0xff09: map_key_clear(BTN_9);		break;
		case 0xff0a: map_key_clear(BTN_A);		break;
		case 0xff0b: map_key_clear(BTN_B);		break;
		default:
			return 0;
	}
	return 1;
}

static int quirk_petalynx_remote(struct hid_usage *usage,
		struct hid_input *hidinput, unsigned long **bit, int *max)
{
	if (((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR) &&
			((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER))
		return 0;

	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_LOGIVENDOR)
		switch(usage->hid & HID_USAGE) {
			case 0x05a: map_key_clear(KEY_TEXT);		break;
			case 0x05b: map_key_clear(KEY_RED);		break;
			case 0x05c: map_key_clear(KEY_GREEN);		break;
			case 0x05d: map_key_clear(KEY_YELLOW);		break;
			case 0x05e: map_key_clear(KEY_BLUE);		break;
			default:
				return 0;
		}

	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER)
		switch(usage->hid & HID_USAGE) {
			case 0x0f6: map_key_clear(KEY_NEXT);            break;
			case 0x0fa: map_key_clear(KEY_BACK);            break;
			default:
				return 0;
		}
	return 1;
}

static int quirk_cherry_genius_29e(struct hid_usage *usage,
		struct hid_input *hidinput, unsigned long **bit, int *max)
{
	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
		return 0;

	switch (usage->hid & HID_USAGE) {
		case 0x156: map_key_clear(KEY_WORDPROCESSOR);	break;
		case 0x157: map_key_clear(KEY_SPREADSHEET);	break;
		case 0x158: map_key_clear(KEY_PRESENTATION);	break;
		case 0x15c: map_key_clear(KEY_STOP);		break;

		default:
			return 0;
	}
	return 1;
}

static int quirk_btc_8193(struct hid_usage *usage, struct hid_input *hidinput,
			      unsigned long **bit, int *max)
{
	if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
		return 0;

	switch (usage->hid & HID_USAGE) {
		case 0x230: map_key(BTN_MOUSE);			break;
		case 0x231: map_rel(REL_WHEEL);			break;
		/* 
		 * this keyboard has a scrollwheel implemented in
		 * totally broken way. We map this usage temporarily
		 * to HWHEEL and handle it in the event quirk handler
		 */
		case 0x232: map_rel(REL_HWHEEL);		break;

		default:
			return 0;
	}
	return 1;
}

#define VENDOR_ID_BELKIN			0x1020
#define DEVICE_ID_BELKIN_WIRELESS_KEYBOARD	0x0006

#define VENDOR_ID_CHERRY			0x046a
#define DEVICE_ID_CHERRY_CYMOTION		0x0023

#define VENDOR_ID_CHICONY			0x04f2
#define DEVICE_ID_CHICONY_TACTICAL_PAD		0x0418

#define VENDOR_ID_EZKEY				0x0518
#define DEVICE_ID_BTC_8193			0x0002

#define VENDOR_ID_GYRATION			0x0c16
#define DEVICE_ID_GYRATION_REMOTE		0x0002

#define VENDOR_ID_MONTEREY			0x0566
#define DEVICE_ID_GENIUS_KB29E			0x3004

#define VENDOR_ID_PETALYNX			0x18b1
#define DEVICE_ID_PETALYNX_MAXTER_REMOTE	0x0037

static const struct hid_input_blacklist {
	__u16 idVendor;
	__u16 idProduct;
	int (*quirk)(struct hid_usage *, struct hid_input *, unsigned long **,
			int *);
} hid_input_blacklist[] = {
	{ VENDOR_ID_BELKIN, DEVICE_ID_BELKIN_WIRELESS_KEYBOARD, quirk_belkin_wkbd },

	{ VENDOR_ID_CHERRY, DEVICE_ID_CHERRY_CYMOTION, quirk_cherry_cymotion },

	{ VENDOR_ID_CHICONY, DEVICE_ID_CHICONY_TACTICAL_PAD, quirk_chicony_tactical_pad },

	{ VENDOR_ID_EZKEY, DEVICE_ID_BTC_8193, quirk_btc_8193 },

	{ VENDOR_ID_GYRATION, DEVICE_ID_GYRATION_REMOTE, quirk_gyration_remote },

	{ VENDOR_ID_MONTEREY, DEVICE_ID_GENIUS_KB29E, quirk_cherry_genius_29e },

	{ VENDOR_ID_PETALYNX, DEVICE_ID_PETALYNX_MAXTER_REMOTE, quirk_petalynx_remote },

	{ 0, 0, NULL }
};

int hidinput_mapping_quirks(struct hid_usage *usage, 
		struct hid_input *hi, unsigned long **bit, int *max)
{
	struct hid_device *device = input_get_drvdata(hi->input);
	int i = 0;
	
	while (hid_input_blacklist[i].quirk) {
		if (hid_input_blacklist[i].idVendor == device->vendor &&
				hid_input_blacklist[i].idProduct == device->product)
			return hid_input_blacklist[i].quirk(usage, hi, bit,
					max);
		i++;
	}
	return 0;
}

int hidinput_event_quirks(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
{
	struct input_dev *input;

	input = field->hidinput->input;

	if ((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 1;
	}

	if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_B8) &&
			(usage->type == EV_REL) &&
			(usage->code == REL_WHEEL)) {
		hid->delayed_value = value;
		return 1;
	}

	if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_B8) &&
			(usage->hid == 0x000100b8)) {
		input_event(input, EV_REL, value ? REL_HWHEEL : REL_WHEEL, hid->delayed_value);
		return 1;
	}

	if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_ON) && (usage->code == REL_WHEEL)) {
		input_event(input, usage->type, REL_HWHEEL, value);
		return 1;
	}

	/* handle the temporary quirky mapping to HWHEEL */
	if (hid->quirks & HID_QUIRK_HWHEEL_WHEEL_INVERT &&
			usage->type == EV_REL && usage->code == REL_HWHEEL) {
		input_event(input, usage->type, REL_WHEEL, -value);
		return 1;
	}

	/* Gyration MCE remote "Sleep" key */
	if (hid->vendor == VENDOR_ID_GYRATION &&
	    hid->product == DEVICE_ID_GYRATION_REMOTE &&
	    (usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK &&
	    (usage->hid & 0xff) == 0x82) {
		input_event(input, usage->type, usage->code, 1);
		input_sync(input);
		input_event(input, usage->type, usage->code, 0);
		input_sync(input);
		return 1;
	}
	return 0;
}