[GitHub/LineageOS/android_kernel_samsung_universal7580.git] / drivers / input / keyboard / hil_kbd.c

/*
 * Generic linux-input device driver for keyboard devices
 *
 * Copyright (c) 2001 Brian S. Julin
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL").
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 *
 * References:
 * HP-HIL Technical Reference Manual.  Hewlett Packard Product No. 45918A
 *
 */

#include <linux/hil.h>
#include <linux/input.h>
#include <linux/serio.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/completion.h>
#include <linux/slab.h>
#include <linux/pci_ids.h>

#define PREFIX "HIL: "

MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
MODULE_DESCRIPTION("HIL keyboard/mouse driver");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_ALIAS("serio:ty03pr25id00ex*"); /* HIL keyboard */
MODULE_ALIAS("serio:ty03pr25id0Fex*"); /* HIL mouse */

#define HIL_PACKET_MAX_LENGTH 16

#define HIL_KBD_SET1_UPBIT 0x01
#define HIL_KBD_SET1_SHIFT 1
static unsigned int hil_kbd_set1[HIL_KEYCODES_SET1_TBLSIZE] __read_mostly =
	{ HIL_KEYCODES_SET1 };

#define HIL_KBD_SET2_UPBIT 0x01
#define HIL_KBD_SET2_SHIFT 1
/* Set2 is user defined */

#define HIL_KBD_SET3_UPBIT 0x80
#define HIL_KBD_SET3_SHIFT 0
static unsigned int hil_kbd_set3[HIL_KEYCODES_SET3_TBLSIZE] __read_mostly =
	{ HIL_KEYCODES_SET3 };

static const char hil_language[][16] = { HIL_LOCALE_MAP };

struct hil_dev {
	struct input_dev *dev;
	struct serio *serio;

	/* Input buffer and index for packets from HIL bus. */
	hil_packet data[HIL_PACKET_MAX_LENGTH];
	int idx4; /* four counts per packet */

	/* Raw device info records from HIL bus, see hil.h for fields. */
	char	idd[HIL_PACKET_MAX_LENGTH];	/* DID byte and IDD record */
	char	rsc[HIL_PACKET_MAX_LENGTH];	/* RSC record */
	char	exd[HIL_PACKET_MAX_LENGTH];	/* EXD record */
	char	rnm[HIL_PACKET_MAX_LENGTH + 1];	/* RNM record + NULL term. */

	struct completion cmd_done;

	bool is_pointer;
	/* Extra device details needed for pointing devices. */
	unsigned int nbtn, naxes;
	unsigned int btnmap[7];
};

static bool hil_dev_is_command_response(hil_packet p)
{
	if ((p & ~HIL_CMDCT_POL) == (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_POL))
		return false;

	if ((p & ~HIL_CMDCT_RPL) == (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_RPL))
		return false;

	return true;
}

static void hil_dev_handle_command_response(struct hil_dev *dev)
{
	hil_packet p;
	char *buf;
	int i, idx;

	idx = dev->idx4 / 4;
	p = dev->data[idx - 1];

	switch (p & HIL_PKT_DATA_MASK) {
	case HIL_CMD_IDD:
		buf = dev->idd;
		break;

	case HIL_CMD_RSC:
		buf = dev->rsc;
		break;

	case HIL_CMD_EXD:
		buf = dev->exd;
		break;

	case HIL_CMD_RNM:
		dev->rnm[HIL_PACKET_MAX_LENGTH] = 0;
		buf = dev->rnm;
		break;

	default:
		/* These occur when device isn't present */
		if (p != (HIL_ERR_INT | HIL_PKT_CMD)) {
			/* Anything else we'd like to know about. */
			printk(KERN_WARNING PREFIX "Device sent unknown record %x\n", p);
		}
		goto out;
	}

	for (i = 0; i < idx; i++)
		buf[i] = dev->data[i] & HIL_PKT_DATA_MASK;
	for (; i < HIL_PACKET_MAX_LENGTH; i++)
		buf[i] = 0;
 out:
	complete(&dev->cmd_done);
}

static void hil_dev_handle_kbd_events(struct hil_dev *kbd)
{
	struct input_dev *dev = kbd->dev;
	int idx = kbd->idx4 / 4;
	int i;

	switch (kbd->data[0] & HIL_POL_CHARTYPE_MASK) {
	case HIL_POL_CHARTYPE_NONE:
		return;

	case HIL_POL_CHARTYPE_ASCII:
		for (i = 1; i < idx - 1; i++)
			input_report_key(dev, kbd->data[i] & 0x7f, 1);
		break;

	case HIL_POL_CHARTYPE_RSVD1:
	case HIL_POL_CHARTYPE_RSVD2:
	case HIL_POL_CHARTYPE_BINARY:
		for (i = 1; i < idx - 1; i++)
			input_report_key(dev, kbd->data[i], 1);
		break;

	case HIL_POL_CHARTYPE_SET1:
		for (i = 1; i < idx - 1; i++) {
			unsigned int key = kbd->data[i];
			int up = key & HIL_KBD_SET1_UPBIT;

			key &= (~HIL_KBD_SET1_UPBIT & 0xff);
			key = hil_kbd_set1[key >> HIL_KBD_SET1_SHIFT];
			input_report_key(dev, key, !up);
		}
		break;

	case HIL_POL_CHARTYPE_SET2:
		for (i = 1; i < idx - 1; i++) {
			unsigned int key = kbd->data[i];
			int up = key & HIL_KBD_SET2_UPBIT;

			key &= (~HIL_KBD_SET1_UPBIT & 0xff);
			key = key >> HIL_KBD_SET2_SHIFT;
			input_report_key(dev, key, !up);
		}
		break;

	case HIL_POL_CHARTYPE_SET3:
		for (i = 1; i < idx - 1; i++) {
			unsigned int key = kbd->data[i];
			int up = key & HIL_KBD_SET3_UPBIT;

			key &= (~HIL_KBD_SET1_UPBIT & 0xff);
			key = hil_kbd_set3[key >> HIL_KBD_SET3_SHIFT];
			input_report_key(dev, key, !up);
		}
		break;
	}

	input_sync(dev);
}

static void hil_dev_handle_ptr_events(struct hil_dev *ptr)
{
	struct input_dev *dev = ptr->dev;
	int idx = ptr->idx4 / 4;
	hil_packet p = ptr->data[idx - 1];
	int i, cnt, laxis;
	bool absdev, ax16;

	if ((p & HIL_CMDCT_POL) != idx - 1) {
		printk(KERN_WARNING PREFIX
			"Malformed poll packet %x (idx = %i)\n", p, idx);
		return;
	}

	i = (p & HIL_POL_AXIS_ALT) ? 3 : 0;
	laxis = (p & HIL_POL_NUM_AXES_MASK) + i;

	ax16 = ptr->idd[1] & HIL_IDD_HEADER_16BIT; /* 8 or 16bit resolution */
	absdev = ptr->idd[1] & HIL_IDD_HEADER_ABS;

	for (cnt = 1; i < laxis; i++) {
		unsigned int lo, hi, val;

		lo = ptr->data[cnt++] & HIL_PKT_DATA_MASK;
		hi = ax16 ? (ptr->data[cnt++] & HIL_PKT_DATA_MASK) : 0;

		if (absdev) {
			val = lo + (hi << 8);
#ifdef TABLET_AUTOADJUST
			if (val < input_abs_get_min(dev, ABS_X + i))
				input_abs_set_min(dev, ABS_X + i, val);
			if (val > input_abs_get_max(dev, ABS_X + i))
				input_abs_set_max(dev, ABS_X + i, val);
#endif
			if (i % 3)
				val = input_abs_get_max(dev, ABS_X + i) - val;
			input_report_abs(dev, ABS_X + i, val);
		} else {
			val = (int) (((int8_t) lo) | ((int8_t) hi << 8));
			if (i % 3)
				val *= -1;
			input_report_rel(dev, REL_X + i, val);
		}
	}

	while (cnt < idx - 1) {
		unsigned int btn = ptr->data[cnt++];
		int up = btn & 1;

		btn &= 0xfe;
		if (btn == 0x8e)
			continue; /* TODO: proximity == touch? */
		if (btn > 0x8c || btn < 0x80)
			continue;
		btn = (btn - 0x80) >> 1;
		btn = ptr->btnmap[btn];
		input_report_key(dev, btn, !up);
	}

	input_sync(dev);
}

static void hil_dev_process_err(struct hil_dev *dev)
{
	printk(KERN_WARNING PREFIX "errored HIL packet\n");
	dev->idx4 = 0;
	complete(&dev->cmd_done); /* just in case somebody is waiting */
}

static irqreturn_t hil_dev_interrupt(struct serio *serio,
				unsigned char data, unsigned int flags)
{
	struct hil_dev *dev;
	hil_packet packet;
	int idx;

	dev = serio_get_drvdata(serio);
	BUG_ON(dev == NULL);

	if (dev->idx4 >= HIL_PACKET_MAX_LENGTH * sizeof(hil_packet)) {
		hil_dev_process_err(dev);
		goto out;
	}

	idx = dev->idx4 / 4;
	if (!(dev->idx4 % 4))
		dev->data[idx] = 0;
	packet = dev->data[idx];
	packet |= ((hil_packet)data) << ((3 - (dev->idx4 % 4)) * 8);
	dev->data[idx] = packet;

	/* Records of N 4-byte hil_packets must terminate with a command. */
	if ((++dev->idx4 % 4) == 0) {
		if ((packet & 0xffff0000) != HIL_ERR_INT) {
			hil_dev_process_err(dev);
		} else if (packet & HIL_PKT_CMD) {
			if (hil_dev_is_command_response(packet))
				hil_dev_handle_command_response(dev);
			else if (dev->is_pointer)
				hil_dev_handle_ptr_events(dev);
			else
				hil_dev_handle_kbd_events(dev);
			dev->idx4 = 0;
		}
	}
 out:
	return IRQ_HANDLED;
}

static void hil_dev_disconnect(struct serio *serio)
{
	struct hil_dev *dev = serio_get_drvdata(serio);

	BUG_ON(dev == NULL);

	serio_close(serio);
	input_unregister_device(dev->dev);
	serio_set_drvdata(serio, NULL);
	kfree(dev);
}

static void hil_dev_keyboard_setup(struct hil_dev *kbd)
{
	struct input_dev *input_dev = kbd->dev;
	uint8_t did = kbd->idd[0];
	int i;

	input_dev->evbit[0]	= BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
	input_dev->ledbit[0]	= BIT_MASK(LED_NUML) | BIT_MASK(LED_CAPSL) |
				  BIT_MASK(LED_SCROLLL);

	for (i = 0; i < 128; i++) {
		__set_bit(hil_kbd_set1[i], input_dev->keybit);
		__set_bit(hil_kbd_set3[i], input_dev->keybit);
	}
	__clear_bit(KEY_RESERVED, input_dev->keybit);

	input_dev->keycodemax	= HIL_KEYCODES_SET1_TBLSIZE;
	input_dev->keycodesize	= sizeof(hil_kbd_set1[0]);
	input_dev->keycode	= hil_kbd_set1;

	input_dev->name	= strlen(kbd->rnm) ? kbd->rnm : "HIL keyboard";
	input_dev->phys	= "hpkbd/input0";

	printk(KERN_INFO PREFIX "HIL keyboard found (did = 0x%02x, lang = %s)\n",
		did, hil_language[did & HIL_IDD_DID_TYPE_KB_LANG_MASK]);
}

static void hil_dev_pointer_setup(struct hil_dev *ptr)
{
	struct input_dev *input_dev = ptr->dev;
	uint8_t did = ptr->idd[0];
	uint8_t *idd = ptr->idd + 1;
	unsigned int naxsets = HIL_IDD_NUM_AXSETS(*idd);
	unsigned int i, btntype;
	const char *txt;

	ptr->naxes = HIL_IDD_NUM_AXES_PER_SET(*idd);

	switch (did & HIL_IDD_DID_TYPE_MASK) {
	case HIL_IDD_DID_TYPE_REL:
		input_dev->evbit[0] = BIT_MASK(EV_REL);

		for (i = 0; i < ptr->naxes; i++)
			__set_bit(REL_X + i, input_dev->relbit);

		for (i = 3; naxsets > 1 && i < ptr->naxes + 3; i++)
			__set_bit(REL_X + i, input_dev->relbit);

		txt = "relative";
		break;

	case HIL_IDD_DID_TYPE_ABS:
		input_dev->evbit[0] = BIT_MASK(EV_ABS);

		for (i = 0; i < ptr->naxes; i++)
			input_set_abs_params(input_dev, ABS_X + i,
					0, HIL_IDD_AXIS_MAX(idd, i), 0, 0);

		for (i = 3; naxsets > 1 && i < ptr->naxes + 3; i++)
			input_set_abs_params(input_dev, ABS_X + i,
					0, HIL_IDD_AXIS_MAX(idd, i - 3), 0, 0);

#ifdef TABLET_AUTOADJUST
		for (i = 0; i < ABS_MAX; i++) {
			int diff = input_abs_get_max(input_dev, ABS_X + i) / 10;
			input_abs_set_min(input_dev, ABS_X + i,
				input_abs_get_min(input_dev, ABS_X + i) + diff);
			input_abs_set_max(input_dev, ABS_X + i,
				input_abs_get_max(input_dev, ABS_X + i) - diff);
		}
#endif

		txt = "absolute";
		break;

	default:
		BUG();
	}

	ptr->nbtn = HIL_IDD_NUM_BUTTONS(idd);
	if (ptr->nbtn)
		input_dev->evbit[0] |= BIT_MASK(EV_KEY);

	btntype = BTN_MISC;
	if ((did & HIL_IDD_DID_ABS_TABLET_MASK) == HIL_IDD_DID_ABS_TABLET)
#ifdef TABLET_SIMULATES_MOUSE
		btntype = BTN_TOUCH;
#else
		btntype = BTN_DIGI;
#endif
	if ((did & HIL_IDD_DID_ABS_TSCREEN_MASK) == HIL_IDD_DID_ABS_TSCREEN)
		btntype = BTN_TOUCH;

	if ((did & HIL_IDD_DID_REL_MOUSE_MASK) == HIL_IDD_DID_REL_MOUSE)
		btntype = BTN_MOUSE;

	for (i = 0; i < ptr->nbtn; i++) {
		__set_bit(btntype | i, input_dev->keybit);
		ptr->btnmap[i] = btntype | i;
	}

	if (btntype == BTN_MOUSE) {
		/* Swap buttons 2 and 3 */
		ptr->btnmap[1] = BTN_MIDDLE;
		ptr->btnmap[2] = BTN_RIGHT;
	}

	input_dev->name = strlen(ptr->rnm) ? ptr->rnm : "HIL pointer device";

	printk(KERN_INFO PREFIX
		"HIL pointer device found (did: 0x%02x, axis: %s)\n",
		did, txt);
	printk(KERN_INFO PREFIX
		"HIL pointer has %i buttons and %i sets of %i axes\n",
		ptr->nbtn, naxsets, ptr->naxes);
}

static int hil_dev_connect(struct serio *serio, struct serio_driver *drv)
{
	struct hil_dev *dev;
	struct input_dev *input_dev;
	uint8_t did, *idd;
	int error;

	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
	input_dev = input_allocate_device();
	if (!dev || !input_dev) {
		error = -ENOMEM;
		goto bail0;
	}

	dev->serio = serio;
	dev->dev = input_dev;

	error = serio_open(serio, drv);
	if (error)
		goto bail0;

	serio_set_drvdata(serio, dev);

	/* Get device info.  MLC driver supplies devid/status/etc. */
	init_completion(&dev->cmd_done);
	serio_write(serio, 0);
	serio_write(serio, 0);
	serio_write(serio, HIL_PKT_CMD >> 8);
	serio_write(serio, HIL_CMD_IDD);
	error = wait_for_completion_killable(&dev->cmd_done);
	if (error)
		goto bail1;

	init_completion(&dev->cmd_done);
	serio_write(serio, 0);
	serio_write(serio, 0);
	serio_write(serio, HIL_PKT_CMD >> 8);
	serio_write(serio, HIL_CMD_RSC);
	error = wait_for_completion_killable(&dev->cmd_done);
	if (error)
		goto bail1;

	init_completion(&dev->cmd_done);
	serio_write(serio, 0);
	serio_write(serio, 0);
	serio_write(serio, HIL_PKT_CMD >> 8);
	serio_write(serio, HIL_CMD_RNM);
	error = wait_for_completion_killable(&dev->cmd_done);
	if (error)
		goto bail1;

	init_completion(&dev->cmd_done);
	serio_write(serio, 0);
	serio_write(serio, 0);
	serio_write(serio, HIL_PKT_CMD >> 8);
	serio_write(serio, HIL_CMD_EXD);
	error = wait_for_completion_killable(&dev->cmd_done);
	if (error)
		goto bail1;

	did = dev->idd[0];
	idd = dev->idd + 1;

	switch (did & HIL_IDD_DID_TYPE_MASK) {
	case HIL_IDD_DID_TYPE_KB_INTEGRAL:
	case HIL_IDD_DID_TYPE_KB_ITF:
	case HIL_IDD_DID_TYPE_KB_RSVD:
	case HIL_IDD_DID_TYPE_CHAR:
		if (HIL_IDD_NUM_BUTTONS(idd) ||
		    HIL_IDD_NUM_AXES_PER_SET(*idd)) {
			printk(KERN_INFO PREFIX
				"combo devices are not supported.\n");
			goto bail1;
		}

		dev->is_pointer = false;
		hil_dev_keyboard_setup(dev);
		break;

	case HIL_IDD_DID_TYPE_REL:
	case HIL_IDD_DID_TYPE_ABS:
		dev->is_pointer = true;
		hil_dev_pointer_setup(dev);
		break;

	default:
		goto bail1;
	}

	input_dev->id.bustype	= BUS_HIL;
	input_dev->id.vendor	= PCI_VENDOR_ID_HP;
	input_dev->id.product	= 0x0001; /* TODO: get from kbd->rsc */
	input_dev->id.version	= 0x0100; /* TODO: get from kbd->rsc */
	input_dev->dev.parent	= &serio->dev;

	if (!dev->is_pointer) {
		serio_write(serio, 0);
		serio_write(serio, 0);
		serio_write(serio, HIL_PKT_CMD >> 8);
		/* Enable Keyswitch Autorepeat 1 */
		serio_write(serio, HIL_CMD_EK1);
		/* No need to wait for completion */
	}

	error = input_register_device(input_dev);
	if (error)
		goto bail1;

	return 0;

 bail1:
	serio_close(serio);
	serio_set_drvdata(serio, NULL);
 bail0:
	input_free_device(input_dev);
	kfree(dev);
	return error;
}

static struct serio_device_id hil_dev_ids[] = {
	{
		.type = SERIO_HIL_MLC,
		.proto = SERIO_HIL,
		.id = SERIO_ANY,
		.extra = SERIO_ANY,
	},
	{ 0 }
};

MODULE_DEVICE_TABLE(serio, hil_dev_ids);

static struct serio_driver hil_serio_drv = {
	.driver		= {
		.name	= "hil_dev",
	},
	.description	= "HP HIL keyboard/mouse/tablet driver",
	.id_table	= hil_dev_ids,
	.connect	= hil_dev_connect,
	.disconnect	= hil_dev_disconnect,
	.interrupt	= hil_dev_interrupt
};

module_serio_driver(hil_serio_drv);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Generic linux-input device driver for keyboard devices
	3	*
	4	* Copyright (c) 2001 Brian S. Julin
	5	* All rights reserved.
	6	*
	7	* Redistribution and use in source and binary forms, with or without
	8	* modification, are permitted provided that the following conditions
	9	* are met:
	10	* 1. Redistributions of source code must retain the above copyright
	11	* notice, this list of conditions, and the following disclaimer,
	12	* without modification.
	13	* 2. The name of the author may not be used to endorse or promote products
	14	* derived from this software without specific prior written permission.
	15	*
	16	* Alternatively, this software may be distributed under the terms of the
	17	* GNU General Public License ("GPL").
	18	*
	19	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
	20	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	21	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	22	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
	23	* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	24	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	25	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	26	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	27	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	28	*
	29	* References:
	30	* HP-HIL Technical Reference Manual. Hewlett Packard Product No. 45918A
	31	*
	32	*/
	33
	34	#include <linux/hil.h>
	35	#include <linux/input.h>
	36	#include <linux/serio.h>
	37	#include <linux/kernel.h>
	38	#include <linux/module.h>
	39	#include <linux/init.h>
6777f017	40	#include <linux/completion.h>
1da177e4 LT	41	#include <linux/slab.h>
	42	#include <linux/pci_ids.h>
	43
fa71c605	44	#define PREFIX "HIL: "
1da177e4 LT	45
1da177e4 LT	46	MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
fa71c605	47	MODULE_DESCRIPTION("HIL keyboard/mouse driver");
1da177e4	48	MODULE_LICENSE("Dual BSD/GPL");
fa71c605 DT	49	MODULE_ALIAS("serio:ty03pr25id00ex"); / HIL keyboard */
fa71c605 DT	50	MODULE_ALIAS("serio:ty03pr25id0Fex"); / HIL mouse */
1da177e4	51
1437dc30	52	#define HIL_PACKET_MAX_LENGTH 16
1da177e4 LT	53
	54	#define HIL_KBD_SET1_UPBIT 0x01
	55	#define HIL_KBD_SET1_SHIFT 1
3acaf540	56	static unsigned int hil_kbd_set1[HIL_KEYCODES_SET1_TBLSIZE] __read_mostly =
1da177e4 LT	57	{ HIL_KEYCODES_SET1 };
	58
	59	#define HIL_KBD_SET2_UPBIT 0x01
	60	#define HIL_KBD_SET2_SHIFT 1
	61	/* Set2 is user defined */
	62
	63	#define HIL_KBD_SET3_UPBIT 0x80
	64	#define HIL_KBD_SET3_SHIFT 0
3acaf540	65	static unsigned int hil_kbd_set3[HIL_KEYCODES_SET3_TBLSIZE] __read_mostly =
1da177e4 LT	66	{ HIL_KEYCODES_SET3 };
1da177e4 LT	67
3acaf540	68	static const char hil_language[][16] = { HIL_LOCALE_MAP };
1da177e4	69
1437dc30	70	struct hil_dev {
102c8c76	71	struct input_dev *dev;
1da177e4 LT	72	struct serio *serio;
	73
	74	/* Input buffer and index for packets from HIL bus. */
1437dc30	75	hil_packet data[HIL_PACKET_MAX_LENGTH];
1da177e4 LT	76	int idx4; /* four counts per packet */
	77
	78	/* Raw device info records from HIL bus, see hil.h for fields. */
1437dc30 DT	79	char idd[HIL_PACKET_MAX_LENGTH]; /* DID byte and IDD record */
	80	char rsc[HIL_PACKET_MAX_LENGTH]; /* RSC record */
	81	char exd[HIL_PACKET_MAX_LENGTH]; /* EXD record */
	82	char rnm[HIL_PACKET_MAX_LENGTH + 1]; /* RNM record + NULL term. */
1da177e4	83
6777f017	84	struct completion cmd_done;
fa71c605 DT	85
	86	bool is_pointer;
	87	/* Extra device details needed for pointing devices. */
	88	unsigned int nbtn, naxes;
	89	unsigned int btnmap[7];
1da177e4 LT	90	};
1da177e4 LT	91
1437dc30	92	static bool hil_dev_is_command_response(hil_packet p)
1da177e4	93	{
6777f017 DT	94	if ((p & ~HIL_CMDCT_POL) == (HIL_ERR_INT \| HIL_PKT_CMD \| HIL_CMD_POL))
6777f017 DT	95	return false;
1da177e4	96
6777f017 DT	97	if ((p & ~HIL_CMDCT_RPL) == (HIL_ERR_INT \| HIL_PKT_CMD \| HIL_CMD_RPL))
	98	return false;
	99
	100	return true;
	101	}
	102
1437dc30	103	static void hil_dev_handle_command_response(struct hil_dev *dev)
6777f017 DT	104	{
	105	hil_packet p;
	106	char *buf;
	107	int i, idx;
1da177e4	108
1437dc30 DT	109	idx = dev->idx4 / 4;
1437dc30 DT	110	p = dev->data[idx - 1];
1da177e4	111
1da177e4 LT	112	switch (p & HIL_PKT_DATA_MASK) {
1da177e4 LT	113	case HIL_CMD_IDD:
1437dc30	114	buf = dev->idd;
1da177e4	115	break;
ffd51f46	116
1da177e4	117	case HIL_CMD_RSC:
1437dc30	118	buf = dev->rsc;
1da177e4	119	break;
ffd51f46	120
1da177e4	121	case HIL_CMD_EXD:
1437dc30	122	buf = dev->exd;
1da177e4	123	break;
ffd51f46	124
1da177e4	125	case HIL_CMD_RNM:
1437dc30 DT	126	dev->rnm[HIL_PACKET_MAX_LENGTH] = 0;
1437dc30 DT	127	buf = dev->rnm;
1da177e4	128	break;
ffd51f46	129
1da177e4 LT	130	default:
1da177e4 LT	131	/* These occur when device isn't present */
6777f017 DT	132	if (p != (HIL_ERR_INT \| HIL_PKT_CMD)) {
	133	/* Anything else we'd like to know about. */
	134	printk(KERN_WARNING PREFIX "Device sent unknown record %x\n", p);
	135	}
	136	goto out;
1da177e4	137	}
1da177e4	138
6777f017	139	for (i = 0; i < idx; i++)
1437dc30 DT	140	buf[i] = dev->data[i] & HIL_PKT_DATA_MASK;
1437dc30 DT	141	for (; i < HIL_PACKET_MAX_LENGTH; i++)
6777f017 DT	142	buf[i] = 0;
6777f017 DT	143	out:
1437dc30	144	complete(&dev->cmd_done);
6777f017 DT	145	}
6777f017 DT	146
fa71c605	147	static void hil_dev_handle_kbd_events(struct hil_dev *kbd)
6777f017 DT	148	{
	149	struct input_dev *dev = kbd->dev;
	150	int idx = kbd->idx4 / 4;
	151	int i;
	152
1da177e4 LT	153	switch (kbd->data[0] & HIL_POL_CHARTYPE_MASK) {
1da177e4 LT	154	case HIL_POL_CHARTYPE_NONE:
6777f017	155	return;
ffd51f46	156
1da177e4	157	case HIL_POL_CHARTYPE_ASCII:
6777f017 DT	158	for (i = 1; i < idx - 1; i++)
6777f017 DT	159	input_report_key(dev, kbd->data[i] & 0x7f, 1);
1da177e4	160	break;
ffd51f46	161
1da177e4 LT	162	case HIL_POL_CHARTYPE_RSVD1:
	163	case HIL_POL_CHARTYPE_RSVD2:
	164	case HIL_POL_CHARTYPE_BINARY:
6777f017 DT	165	for (i = 1; i < idx - 1; i++)
6777f017 DT	166	input_report_key(dev, kbd->data[i], 1);
1da177e4	167	break;
ffd51f46	168
1da177e4	169	case HIL_POL_CHARTYPE_SET1:
6777f017 DT	170	for (i = 1; i < idx - 1; i++) {
	171	unsigned int key = kbd->data[i];
	172	int up = key & HIL_KBD_SET1_UPBIT;
	173
1da177e4 LT	174	key &= (~HIL_KBD_SET1_UPBIT & 0xff);
1da177e4 LT	175	key = hil_kbd_set1[key >> HIL_KBD_SET1_SHIFT];
6777f017	176	input_report_key(dev, key, !up);
1da177e4 LT	177	}
1da177e4 LT	178	break;
ffd51f46	179
1da177e4	180	case HIL_POL_CHARTYPE_SET2:
6777f017 DT	181	for (i = 1; i < idx - 1; i++) {
	182	unsigned int key = kbd->data[i];
	183	int up = key & HIL_KBD_SET2_UPBIT;
	184
1da177e4 LT	185	key &= (~HIL_KBD_SET1_UPBIT & 0xff);
1da177e4 LT	186	key = key >> HIL_KBD_SET2_SHIFT;
6777f017	187	input_report_key(dev, key, !up);
1da177e4 LT	188	}
1da177e4 LT	189	break;
ffd51f46	190
1da177e4	191	case HIL_POL_CHARTYPE_SET3:
6777f017 DT	192	for (i = 1; i < idx - 1; i++) {
	193	unsigned int key = kbd->data[i];
	194	int up = key & HIL_KBD_SET3_UPBIT;
	195
1da177e4 LT	196	key &= (~HIL_KBD_SET1_UPBIT & 0xff);
1da177e4 LT	197	key = hil_kbd_set3[key >> HIL_KBD_SET3_SHIFT];
6777f017	198	input_report_key(dev, key, !up);
1da177e4 LT	199	}
	200	break;
	201	}
6777f017 DT	202
6777f017 DT	203	input_sync(dev);
1da177e4 LT	204	}
1da177e4 LT	205
fa71c605 DT	206	static void hil_dev_handle_ptr_events(struct hil_dev *ptr)
	207	{
	208	struct input_dev *dev = ptr->dev;
	209	int idx = ptr->idx4 / 4;
	210	hil_packet p = ptr->data[idx - 1];
	211	int i, cnt, laxis;
	212	bool absdev, ax16;
	213
	214	if ((p & HIL_CMDCT_POL) != idx - 1) {
	215	printk(KERN_WARNING PREFIX
	216	"Malformed poll packet %x (idx = %i)\n", p, idx);
	217	return;
	218	}
	219
	220	i = (p & HIL_POL_AXIS_ALT) ? 3 : 0;
	221	laxis = (p & HIL_POL_NUM_AXES_MASK) + i;
	222
	223	ax16 = ptr->idd[1] & HIL_IDD_HEADER_16BIT; /* 8 or 16bit resolution */
	224	absdev = ptr->idd[1] & HIL_IDD_HEADER_ABS;
	225
	226	for (cnt = 1; i < laxis; i++) {
	227	unsigned int lo, hi, val;
	228
	229	lo = ptr->data[cnt++] & HIL_PKT_DATA_MASK;
	230	hi = ax16 ? (ptr->data[cnt++] & HIL_PKT_DATA_MASK) : 0;
	231
	232	if (absdev) {
	233	val = lo + (hi << 8);
	234	#ifdef TABLET_AUTOADJUST
77edf0c7	235	if (val < input_abs_get_min(dev, ABS_X + i))
987a6c02	236	input_abs_set_min(dev, ABS_X + i, val);
77edf0c7	237	if (val > input_abs_get_max(dev, ABS_X + i))
b84ae4a1	238	input_abs_set_max(dev, ABS_X + i, val);
fa71c605	239	#endif
987a6c02	240	if (i % 3)
77edf0c7	241	val = input_abs_get_max(dev, ABS_X + i) - val;
fa71c605 DT	242	input_report_abs(dev, ABS_X + i, val);
fa71c605 DT	243	} else {
987a6c02	244	val = (int) (((int8_t) lo) \| ((int8_t) hi << 8));
fa71c605 DT	245	if (i % 3)
	246	val *= -1;
	247	input_report_rel(dev, REL_X + i, val);
	248	}
	249	}
	250
	251	while (cnt < idx - 1) {
	252	unsigned int btn = ptr->data[cnt++];
	253	int up = btn & 1;
	254
	255	btn &= 0xfe;
	256	if (btn == 0x8e)
	257	continue; /* TODO: proximity == touch? */
	258	if (btn > 0x8c \|\| btn < 0x80)
	259	continue;
	260	btn = (btn - 0x80) >> 1;
	261	btn = ptr->btnmap[btn];
	262	input_report_key(dev, btn, !up);
	263	}
	264
	265	input_sync(dev);
	266	}
	267
1437dc30	268	static void hil_dev_process_err(struct hil_dev *dev)
ffd51f46	269	{
1da177e4	270	printk(KERN_WARNING PREFIX "errored HIL packet\n");
1437dc30 DT	271	dev->idx4 = 0;
1437dc30 DT	272	complete(&dev->cmd_done); /* just in case somebody is waiting */
1da177e4 LT	273	}
1da177e4 LT	274
1437dc30	275	static irqreturn_t hil_dev_interrupt(struct serio *serio,
ffd51f46	276	unsigned char data, unsigned int flags)
1da177e4	277	{
1437dc30	278	struct hil_dev *dev;
1da177e4 LT	279	hil_packet packet;
	280	int idx;
	281
1437dc30 DT	282	dev = serio_get_drvdata(serio);
1437dc30 DT	283	BUG_ON(dev == NULL);
1da177e4	284
1437dc30 DT	285	if (dev->idx4 >= HIL_PACKET_MAX_LENGTH * sizeof(hil_packet)) {
1437dc30 DT	286	hil_dev_process_err(dev);
6777f017	287	goto out;
1da177e4	288	}
6777f017	289
1437dc30 DT	290	idx = dev->idx4 / 4;
	291	if (!(dev->idx4 % 4))
	292	dev->data[idx] = 0;
	293	packet = dev->data[idx];
	294	packet \|= ((hil_packet)data) << ((3 - (dev->idx4 % 4)) * 8);
	295	dev->data[idx] = packet;
1da177e4 LT	296
1da177e4 LT	297	/* Records of N 4-byte hil_packets must terminate with a command. */
1437dc30	298	if ((++dev->idx4 % 4) == 0) {
6777f017	299	if ((packet & 0xffff0000) != HIL_ERR_INT) {
1437dc30	300	hil_dev_process_err(dev);
6777f017	301	} else if (packet & HIL_PKT_CMD) {
1437dc30 DT	302	if (hil_dev_is_command_response(packet))
1437dc30 DT	303	hil_dev_handle_command_response(dev);
fa71c605 DT	304	else if (dev->is_pointer)
fa71c605 DT	305	hil_dev_handle_ptr_events(dev);
6777f017	306	else
fa71c605	307	hil_dev_handle_kbd_events(dev);
1437dc30	308	dev->idx4 = 0;
6777f017	309	}
1da177e4	310	}
6777f017	311	out:
1da177e4 LT	312	return IRQ_HANDLED;
	313	}
	314
1437dc30	315	static void hil_dev_disconnect(struct serio *serio)
1da177e4	316	{
1437dc30	317	struct hil_dev *dev = serio_get_drvdata(serio);
1da177e4	318
1437dc30	319	BUG_ON(dev == NULL);
1da177e4	320
1da177e4	321	serio_close(serio);
1437dc30	322	input_unregister_device(dev->dev);
fa71c605	323	serio_set_drvdata(serio, NULL);
1437dc30	324	kfree(dev);
1da177e4 LT	325	}
1da177e4 LT	326
fa71c605 DT	327	static void hil_dev_keyboard_setup(struct hil_dev *kbd)
	328	{
	329	struct input_dev *input_dev = kbd->dev;
	330	uint8_t did = kbd->idd[0];
	331	int i;
	332
	333	input_dev->evbit[0] = BIT_MASK(EV_KEY) \| BIT_MASK(EV_REP);
	334	input_dev->ledbit[0] = BIT_MASK(LED_NUML) \| BIT_MASK(LED_CAPSL) \|
	335	BIT_MASK(LED_SCROLLL);
	336
	337	for (i = 0; i < 128; i++) {
	338	__set_bit(hil_kbd_set1[i], input_dev->keybit);
	339	__set_bit(hil_kbd_set3[i], input_dev->keybit);
	340	}
	341	__clear_bit(KEY_RESERVED, input_dev->keybit);
	342
	343	input_dev->keycodemax = HIL_KEYCODES_SET1_TBLSIZE;
	344	input_dev->keycodesize = sizeof(hil_kbd_set1[0]);
	345	input_dev->keycode = hil_kbd_set1;
	346
	347	input_dev->name = strlen(kbd->rnm) ? kbd->rnm : "HIL keyboard";
	348	input_dev->phys = "hpkbd/input0";
	349
	350	printk(KERN_INFO PREFIX "HIL keyboard found (did = 0x%02x, lang = %s)\n",
	351	did, hil_language[did & HIL_IDD_DID_TYPE_KB_LANG_MASK]);
	352	}
	353
	354	static void hil_dev_pointer_setup(struct hil_dev *ptr)
	355	{
	356	struct input_dev *input_dev = ptr->dev;
	357	uint8_t did = ptr->idd[0];
	358	uint8_t *idd = ptr->idd + 1;
	359	unsigned int naxsets = HIL_IDD_NUM_AXSETS(*idd);
	360	unsigned int i, btntype;
	361	const char *txt;
	362
	363	ptr->naxes = HIL_IDD_NUM_AXES_PER_SET(*idd);
	364
	365	switch (did & HIL_IDD_DID_TYPE_MASK) {
	366	case HIL_IDD_DID_TYPE_REL:
	367	input_dev->evbit[0] = BIT_MASK(EV_REL);
	368
	369	for (i = 0; i < ptr->naxes; i++)
	370	__set_bit(REL_X + i, input_dev->relbit);
	371
	372	for (i = 3; naxsets > 1 && i < ptr->naxes + 3; i++)
	373	__set_bit(REL_X + i, input_dev->relbit);
	374
	375	txt = "relative";
	376	break;
	377
	378	case HIL_IDD_DID_TYPE_ABS:
	379	input_dev->evbit[0] = BIT_MASK(EV_ABS);
	380
	381	for (i = 0; i < ptr->naxes; i++)
	382	input_set_abs_params(input_dev, ABS_X + i,
	383	0, HIL_IDD_AXIS_MAX(idd, i), 0, 0);
	384
	385	for (i = 3; naxsets > 1 && i < ptr->naxes + 3; i++)
	386	input_set_abs_params(input_dev, ABS_X + i,
	387	0, HIL_IDD_AXIS_MAX(idd, i - 3), 0, 0);
	388
	389	#ifdef TABLET_AUTOADJUST
	390	for (i = 0; i < ABS_MAX; i++) {
77edf0c7	391	int diff = input_abs_get_max(input_dev, ABS_X + i) / 10;
987a6c02	392	input_abs_set_min(input_dev, ABS_X + i,
77edf0c7	393	input_abs_get_min(input_dev, ABS_X + i) + diff);
b84ae4a1	394	input_abs_set_max(input_dev, ABS_X + i,
77edf0c7	395	input_abs_get_max(input_dev, ABS_X + i) - diff);
fa71c605 DT	396	}
	397	#endif
	398
	399	txt = "absolute";
	400	break;
	401
	402	default:
	403	BUG();
	404	}
	405
	406	ptr->nbtn = HIL_IDD_NUM_BUTTONS(idd);
	407	if (ptr->nbtn)
	408	input_dev->evbit[0] \|= BIT_MASK(EV_KEY);
	409
	410	btntype = BTN_MISC;
	411	if ((did & HIL_IDD_DID_ABS_TABLET_MASK) == HIL_IDD_DID_ABS_TABLET)
	412	#ifdef TABLET_SIMULATES_MOUSE
	413	btntype = BTN_TOUCH;
	414	#else
	415	btntype = BTN_DIGI;
	416	#endif
	417	if ((did & HIL_IDD_DID_ABS_TSCREEN_MASK) == HIL_IDD_DID_ABS_TSCREEN)
	418	btntype = BTN_TOUCH;
	419
	420	if ((did & HIL_IDD_DID_REL_MOUSE_MASK) == HIL_IDD_DID_REL_MOUSE)
	421	btntype = BTN_MOUSE;
	422
	423	for (i = 0; i < ptr->nbtn; i++) {
	424	__set_bit(btntype \| i, input_dev->keybit);
	425	ptr->btnmap[i] = btntype \| i;
	426	}
	427
	428	if (btntype == BTN_MOUSE) {
	429	/* Swap buttons 2 and 3 */
	430	ptr->btnmap[1] = BTN_MIDDLE;
	431	ptr->btnmap[2] = BTN_RIGHT;
	432	}
	433
	434	input_dev->name = strlen(ptr->rnm) ? ptr->rnm : "HIL pointer device";
	435
	436	printk(KERN_INFO PREFIX
	437	"HIL pointer device found (did: 0x%02x, axis: %s)\n",
	438	did, txt);
	439	printk(KERN_INFO PREFIX
	440	"HIL pointer has %i buttons and %i sets of %i axes\n",
	441	ptr->nbtn, naxsets, ptr->naxes);
	442	}
	443
1437dc30	444	static int hil_dev_connect(struct serio serio, struct serio_driver drv)
1da177e4	445	{
1437dc30	446	struct hil_dev *dev;
6777f017 DT	447	struct input_dev *input_dev;
6777f017 DT	448	uint8_t did, *idd;
6777f017	449	int error;
95d465fd	450
1437dc30	451	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
6777f017	452	input_dev = input_allocate_device();
1437dc30	453	if (!dev \|\| !input_dev) {
6777f017	454	error = -ENOMEM;
95d465fd	455	goto bail0;
6777f017	456	}
95d465fd	457
1437dc30 DT	458	dev->serio = serio;
1437dc30 DT	459	dev->dev = input_dev;
6777f017 DT	460
	461	error = serio_open(serio, drv);
	462	if (error)
	463	goto bail0;
1da177e4	464
1437dc30	465	serio_set_drvdata(serio, dev);
1da177e4 LT	466
1da177e4 LT	467	/* Get device info. MLC driver supplies devid/status/etc. */
1437dc30	468	init_completion(&dev->cmd_done);
dd0d5443 DT	469	serio_write(serio, 0);
	470	serio_write(serio, 0);
	471	serio_write(serio, HIL_PKT_CMD >> 8);
	472	serio_write(serio, HIL_CMD_IDD);
1437dc30	473	error = wait_for_completion_killable(&dev->cmd_done);
6777f017 DT	474	if (error)
6777f017 DT	475	goto bail1;
1da177e4	476
1437dc30	477	init_completion(&dev->cmd_done);
dd0d5443 DT	478	serio_write(serio, 0);
	479	serio_write(serio, 0);
	480	serio_write(serio, HIL_PKT_CMD >> 8);
	481	serio_write(serio, HIL_CMD_RSC);
1437dc30	482	error = wait_for_completion_killable(&dev->cmd_done);
6777f017 DT	483	if (error)
6777f017 DT	484	goto bail1;
1da177e4	485
1437dc30	486	init_completion(&dev->cmd_done);
dd0d5443 DT	487	serio_write(serio, 0);
	488	serio_write(serio, 0);
	489	serio_write(serio, HIL_PKT_CMD >> 8);
	490	serio_write(serio, HIL_CMD_RNM);
1437dc30	491	error = wait_for_completion_killable(&dev->cmd_done);
6777f017 DT	492	if (error)
6777f017 DT	493	goto bail1;
1da177e4	494
1437dc30	495	init_completion(&dev->cmd_done);
dd0d5443 DT	496	serio_write(serio, 0);
	497	serio_write(serio, 0);
	498	serio_write(serio, HIL_PKT_CMD >> 8);
	499	serio_write(serio, HIL_CMD_EXD);
1437dc30	500	error = wait_for_completion_killable(&dev->cmd_done);
6777f017 DT	501	if (error)
6777f017 DT	502	goto bail1;
1da177e4	503
1437dc30 DT	504	did = dev->idd[0];
1437dc30 DT	505	idd = dev->idd + 1;
fa71c605	506
1da177e4 LT	507	switch (did & HIL_IDD_DID_TYPE_MASK) {
	508	case HIL_IDD_DID_TYPE_KB_INTEGRAL:
	509	case HIL_IDD_DID_TYPE_KB_ITF:
	510	case HIL_IDD_DID_TYPE_KB_RSVD:
	511	case HIL_IDD_DID_TYPE_CHAR:
fa71c605 DT	512	if (HIL_IDD_NUM_BUTTONS(idd) \|\|
	513	HIL_IDD_NUM_AXES_PER_SET(*idd)) {
	514	printk(KERN_INFO PREFIX
	515	"combo devices are not supported.\n");
	516	goto bail1;
	517	}
	518
	519	dev->is_pointer = false;
	520	hil_dev_keyboard_setup(dev);
1da177e4	521	break;
1da177e4	522
fa71c605 DT	523	case HIL_IDD_DID_TYPE_REL:
	524	case HIL_IDD_DID_TYPE_ABS:
	525	dev->is_pointer = true;
	526	hil_dev_pointer_setup(dev);
	527	break;
	528
	529	default:
6777f017	530	goto bail1;
1da177e4 LT	531	}
1da177e4 LT	532
6777f017 DT	533	input_dev->id.bustype = BUS_HIL;
	534	input_dev->id.vendor = PCI_VENDOR_ID_HP;
	535	input_dev->id.product = 0x0001; /* TODO: get from kbd->rsc */
	536	input_dev->id.version = 0x0100; /* TODO: get from kbd->rsc */
	537	input_dev->dev.parent = &serio->dev;
1da177e4	538
fa71c605 DT	539	if (!dev->is_pointer) {
	540	serio_write(serio, 0);
	541	serio_write(serio, 0);
	542	serio_write(serio, HIL_PKT_CMD >> 8);
	543	/* Enable Keyswitch Autorepeat 1 */
	544	serio_write(serio, HIL_CMD_EK1);
	545	/* No need to wait for completion */
1da177e4	546	}
6777f017	547
1437dc30	548	error = input_register_device(input_dev);
6777f017 DT	549	if (error)
6777f017 DT	550	goto bail1;
1da177e4	551
6ab0f5cd	552	return 0;
6777f017 DT	553
6777f017 DT	554	bail1:
1da177e4	555	serio_close(serio);
d668da80	556	serio_set_drvdata(serio, NULL);
1da177e4	557	bail0:
6777f017	558	input_free_device(input_dev);
1437dc30	559	kfree(dev);
6777f017	560	return error;
1da177e4 LT	561	}
1da177e4 LT	562
1437dc30	563	static struct serio_device_id hil_dev_ids[] = {
6ab0f5cd MW	564	{
	565	.type = SERIO_HIL_MLC,
	566	.proto = SERIO_HIL,
	567	.id = SERIO_ANY,
	568	.extra = SERIO_ANY,
	569	},
	570	{ 0 }
	571	};
1da177e4	572
05e93a74 DK	573	MODULE_DEVICE_TABLE(serio, hil_dev_ids);
05e93a74 DK	574
1437dc30	575	static struct serio_driver hil_serio_drv = {
1da177e4	576	.driver = {
fa71c605	577	.name = "hil_dev",
1da177e4	578	},
fa71c605	579	.description = "HP HIL keyboard/mouse/tablet driver",
1437dc30 DT	580	.id_table = hil_dev_ids,
	581	.connect = hil_dev_connect,
	582	.disconnect = hil_dev_disconnect,
	583	.interrupt = hil_dev_interrupt
1da177e4 LT	584	};
1da177e4 LT	585
65ac9f7a	586	module_serio_driver(hil_serio_drv);