[mirror_ubuntu-zesty-kernel.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/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;

	reinit_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;

	reinit_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;

	reinit_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>
6777f017	39	#include <linux/completion.h>
1da177e4 LT	40	#include <linux/slab.h>
	41	#include <linux/pci_ids.h>
	42
fa71c605	43	#define PREFIX "HIL: "
1da177e4 LT	44
1da177e4 LT	45	MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
fa71c605	46	MODULE_DESCRIPTION("HIL keyboard/mouse driver");
1da177e4	47	MODULE_LICENSE("Dual BSD/GPL");
fa71c605 DT	48	MODULE_ALIAS("serio:ty03pr25id00ex"); / HIL keyboard */
fa71c605 DT	49	MODULE_ALIAS("serio:ty03pr25id0Fex"); / HIL mouse */
1da177e4	50
1437dc30	51	#define HIL_PACKET_MAX_LENGTH 16
1da177e4 LT	52
	53	#define HIL_KBD_SET1_UPBIT 0x01
	54	#define HIL_KBD_SET1_SHIFT 1
3acaf540	55	static unsigned int hil_kbd_set1[HIL_KEYCODES_SET1_TBLSIZE] __read_mostly =
1da177e4 LT	56	{ HIL_KEYCODES_SET1 };
	57
	58	#define HIL_KBD_SET2_UPBIT 0x01
	59	#define HIL_KBD_SET2_SHIFT 1
	60	/* Set2 is user defined */
	61
	62	#define HIL_KBD_SET3_UPBIT 0x80
	63	#define HIL_KBD_SET3_SHIFT 0
3acaf540	64	static unsigned int hil_kbd_set3[HIL_KEYCODES_SET3_TBLSIZE] __read_mostly =
1da177e4 LT	65	{ HIL_KEYCODES_SET3 };
1da177e4 LT	66
3acaf540	67	static const char hil_language[][16] = { HIL_LOCALE_MAP };
1da177e4	68
1437dc30	69	struct hil_dev {
102c8c76	70	struct input_dev *dev;
1da177e4 LT	71	struct serio *serio;
	72
	73	/* Input buffer and index for packets from HIL bus. */
1437dc30	74	hil_packet data[HIL_PACKET_MAX_LENGTH];
1da177e4 LT	75	int idx4; /* four counts per packet */
	76
	77	/* Raw device info records from HIL bus, see hil.h for fields. */
1437dc30 DT	78	char idd[HIL_PACKET_MAX_LENGTH]; /* DID byte and IDD record */
	79	char rsc[HIL_PACKET_MAX_LENGTH]; /* RSC record */
	80	char exd[HIL_PACKET_MAX_LENGTH]; /* EXD record */
	81	char rnm[HIL_PACKET_MAX_LENGTH + 1]; /* RNM record + NULL term. */
1da177e4	82
6777f017	83	struct completion cmd_done;
fa71c605 DT	84
	85	bool is_pointer;
	86	/* Extra device details needed for pointing devices. */
	87	unsigned int nbtn, naxes;
	88	unsigned int btnmap[7];
1da177e4 LT	89	};
1da177e4 LT	90
1437dc30	91	static bool hil_dev_is_command_response(hil_packet p)
1da177e4	92	{
6777f017 DT	93	if ((p & ~HIL_CMDCT_POL) == (HIL_ERR_INT \| HIL_PKT_CMD \| HIL_CMD_POL))
6777f017 DT	94	return false;
1da177e4	95
6777f017 DT	96	if ((p & ~HIL_CMDCT_RPL) == (HIL_ERR_INT \| HIL_PKT_CMD \| HIL_CMD_RPL))
	97	return false;
	98
	99	return true;
	100	}
	101
1437dc30	102	static void hil_dev_handle_command_response(struct hil_dev *dev)
6777f017 DT	103	{
	104	hil_packet p;
	105	char *buf;
	106	int i, idx;
1da177e4	107
1437dc30 DT	108	idx = dev->idx4 / 4;
1437dc30 DT	109	p = dev->data[idx - 1];
1da177e4	110
1da177e4 LT	111	switch (p & HIL_PKT_DATA_MASK) {
1da177e4 LT	112	case HIL_CMD_IDD:
1437dc30	113	buf = dev->idd;
1da177e4	114	break;
ffd51f46	115
1da177e4	116	case HIL_CMD_RSC:
1437dc30	117	buf = dev->rsc;
1da177e4	118	break;
ffd51f46	119
1da177e4	120	case HIL_CMD_EXD:
1437dc30	121	buf = dev->exd;
1da177e4	122	break;
ffd51f46	123
1da177e4	124	case HIL_CMD_RNM:
1437dc30 DT	125	dev->rnm[HIL_PACKET_MAX_LENGTH] = 0;
1437dc30 DT	126	buf = dev->rnm;
1da177e4	127	break;
ffd51f46	128
1da177e4 LT	129	default:
1da177e4 LT	130	/* These occur when device isn't present */
6777f017 DT	131	if (p != (HIL_ERR_INT \| HIL_PKT_CMD)) {
	132	/* Anything else we'd like to know about. */
	133	printk(KERN_WARNING PREFIX "Device sent unknown record %x\n", p);
	134	}
	135	goto out;
1da177e4	136	}
1da177e4	137
6777f017	138	for (i = 0; i < idx; i++)
1437dc30 DT	139	buf[i] = dev->data[i] & HIL_PKT_DATA_MASK;
1437dc30 DT	140	for (; i < HIL_PACKET_MAX_LENGTH; i++)
6777f017 DT	141	buf[i] = 0;
6777f017 DT	142	out:
1437dc30	143	complete(&dev->cmd_done);
6777f017 DT	144	}
6777f017 DT	145
fa71c605	146	static void hil_dev_handle_kbd_events(struct hil_dev *kbd)
6777f017 DT	147	{
	148	struct input_dev *dev = kbd->dev;
	149	int idx = kbd->idx4 / 4;
	150	int i;
	151
1da177e4 LT	152	switch (kbd->data[0] & HIL_POL_CHARTYPE_MASK) {
1da177e4 LT	153	case HIL_POL_CHARTYPE_NONE:
6777f017	154	return;
ffd51f46	155
1da177e4	156	case HIL_POL_CHARTYPE_ASCII:
6777f017 DT	157	for (i = 1; i < idx - 1; i++)
6777f017 DT	158	input_report_key(dev, kbd->data[i] & 0x7f, 1);
1da177e4	159	break;
ffd51f46	160
1da177e4 LT	161	case HIL_POL_CHARTYPE_RSVD1:
	162	case HIL_POL_CHARTYPE_RSVD2:
	163	case HIL_POL_CHARTYPE_BINARY:
6777f017 DT	164	for (i = 1; i < idx - 1; i++)
6777f017 DT	165	input_report_key(dev, kbd->data[i], 1);
1da177e4	166	break;
ffd51f46	167
1da177e4	168	case HIL_POL_CHARTYPE_SET1:
6777f017 DT	169	for (i = 1; i < idx - 1; i++) {
	170	unsigned int key = kbd->data[i];
	171	int up = key & HIL_KBD_SET1_UPBIT;
	172
1da177e4 LT	173	key &= (~HIL_KBD_SET1_UPBIT & 0xff);
1da177e4 LT	174	key = hil_kbd_set1[key >> HIL_KBD_SET1_SHIFT];
6777f017	175	input_report_key(dev, key, !up);
1da177e4 LT	176	}
1da177e4 LT	177	break;
ffd51f46	178
1da177e4	179	case HIL_POL_CHARTYPE_SET2:
6777f017 DT	180	for (i = 1; i < idx - 1; i++) {
	181	unsigned int key = kbd->data[i];
	182	int up = key & HIL_KBD_SET2_UPBIT;
	183
1da177e4 LT	184	key &= (~HIL_KBD_SET1_UPBIT & 0xff);
1da177e4 LT	185	key = key >> HIL_KBD_SET2_SHIFT;
6777f017	186	input_report_key(dev, key, !up);
1da177e4 LT	187	}
1da177e4 LT	188	break;
ffd51f46	189
1da177e4	190	case HIL_POL_CHARTYPE_SET3:
6777f017 DT	191	for (i = 1; i < idx - 1; i++) {
	192	unsigned int key = kbd->data[i];
	193	int up = key & HIL_KBD_SET3_UPBIT;
	194
1da177e4 LT	195	key &= (~HIL_KBD_SET1_UPBIT & 0xff);
1da177e4 LT	196	key = hil_kbd_set3[key >> HIL_KBD_SET3_SHIFT];
6777f017	197	input_report_key(dev, key, !up);
1da177e4 LT	198	}
	199	break;
	200	}
6777f017 DT	201
6777f017 DT	202	input_sync(dev);
1da177e4 LT	203	}
1da177e4 LT	204
fa71c605 DT	205	static void hil_dev_handle_ptr_events(struct hil_dev *ptr)
	206	{
	207	struct input_dev *dev = ptr->dev;
	208	int idx = ptr->idx4 / 4;
	209	hil_packet p = ptr->data[idx - 1];
	210	int i, cnt, laxis;
	211	bool absdev, ax16;
	212
	213	if ((p & HIL_CMDCT_POL) != idx - 1) {
	214	printk(KERN_WARNING PREFIX
	215	"Malformed poll packet %x (idx = %i)\n", p, idx);
	216	return;
	217	}
	218
	219	i = (p & HIL_POL_AXIS_ALT) ? 3 : 0;
	220	laxis = (p & HIL_POL_NUM_AXES_MASK) + i;
	221
	222	ax16 = ptr->idd[1] & HIL_IDD_HEADER_16BIT; /* 8 or 16bit resolution */
	223	absdev = ptr->idd[1] & HIL_IDD_HEADER_ABS;
	224
	225	for (cnt = 1; i < laxis; i++) {
	226	unsigned int lo, hi, val;
	227
	228	lo = ptr->data[cnt++] & HIL_PKT_DATA_MASK;
	229	hi = ax16 ? (ptr->data[cnt++] & HIL_PKT_DATA_MASK) : 0;
	230
	231	if (absdev) {
	232	val = lo + (hi << 8);
	233	#ifdef TABLET_AUTOADJUST
77edf0c7	234	if (val < input_abs_get_min(dev, ABS_X + i))
987a6c02	235	input_abs_set_min(dev, ABS_X + i, val);
77edf0c7	236	if (val > input_abs_get_max(dev, ABS_X + i))
b84ae4a1	237	input_abs_set_max(dev, ABS_X + i, val);
fa71c605	238	#endif
987a6c02	239	if (i % 3)
77edf0c7	240	val = input_abs_get_max(dev, ABS_X + i) - val;
fa71c605 DT	241	input_report_abs(dev, ABS_X + i, val);
fa71c605 DT	242	} else {
987a6c02	243	val = (int) (((int8_t) lo) \| ((int8_t) hi << 8));
fa71c605 DT	244	if (i % 3)
	245	val *= -1;
	246	input_report_rel(dev, REL_X + i, val);
	247	}
	248	}
	249
	250	while (cnt < idx - 1) {
	251	unsigned int btn = ptr->data[cnt++];
	252	int up = btn & 1;
	253
	254	btn &= 0xfe;
	255	if (btn == 0x8e)
	256	continue; /* TODO: proximity == touch? */
	257	if (btn > 0x8c \|\| btn < 0x80)
	258	continue;
	259	btn = (btn - 0x80) >> 1;
	260	btn = ptr->btnmap[btn];
	261	input_report_key(dev, btn, !up);
	262	}
	263
	264	input_sync(dev);
	265	}
	266
1437dc30	267	static void hil_dev_process_err(struct hil_dev *dev)
ffd51f46	268	{
1da177e4	269	printk(KERN_WARNING PREFIX "errored HIL packet\n");
1437dc30 DT	270	dev->idx4 = 0;
1437dc30 DT	271	complete(&dev->cmd_done); /* just in case somebody is waiting */
1da177e4 LT	272	}
1da177e4 LT	273
1437dc30	274	static irqreturn_t hil_dev_interrupt(struct serio *serio,
ffd51f46	275	unsigned char data, unsigned int flags)
1da177e4	276	{
1437dc30	277	struct hil_dev *dev;
1da177e4 LT	278	hil_packet packet;
	279	int idx;
	280
1437dc30 DT	281	dev = serio_get_drvdata(serio);
1437dc30 DT	282	BUG_ON(dev == NULL);
1da177e4	283
1437dc30 DT	284	if (dev->idx4 >= HIL_PACKET_MAX_LENGTH * sizeof(hil_packet)) {
1437dc30 DT	285	hil_dev_process_err(dev);
6777f017	286	goto out;
1da177e4	287	}
6777f017	288
1437dc30 DT	289	idx = dev->idx4 / 4;
	290	if (!(dev->idx4 % 4))
	291	dev->data[idx] = 0;
	292	packet = dev->data[idx];
	293	packet \|= ((hil_packet)data) << ((3 - (dev->idx4 % 4)) * 8);
	294	dev->data[idx] = packet;
1da177e4 LT	295
1da177e4 LT	296	/* Records of N 4-byte hil_packets must terminate with a command. */
1437dc30	297	if ((++dev->idx4 % 4) == 0) {
6777f017	298	if ((packet & 0xffff0000) != HIL_ERR_INT) {
1437dc30	299	hil_dev_process_err(dev);
6777f017	300	} else if (packet & HIL_PKT_CMD) {
1437dc30 DT	301	if (hil_dev_is_command_response(packet))
1437dc30 DT	302	hil_dev_handle_command_response(dev);
fa71c605 DT	303	else if (dev->is_pointer)
fa71c605 DT	304	hil_dev_handle_ptr_events(dev);
6777f017	305	else
fa71c605	306	hil_dev_handle_kbd_events(dev);
1437dc30	307	dev->idx4 = 0;
6777f017	308	}
1da177e4	309	}
6777f017	310	out:
1da177e4 LT	311	return IRQ_HANDLED;
	312	}
	313
1437dc30	314	static void hil_dev_disconnect(struct serio *serio)
1da177e4	315	{
1437dc30	316	struct hil_dev *dev = serio_get_drvdata(serio);
1da177e4	317
1437dc30	318	BUG_ON(dev == NULL);
1da177e4	319
1da177e4	320	serio_close(serio);
1437dc30	321	input_unregister_device(dev->dev);
fa71c605	322	serio_set_drvdata(serio, NULL);
1437dc30	323	kfree(dev);
1da177e4 LT	324	}
1da177e4 LT	325
fa71c605 DT	326	static void hil_dev_keyboard_setup(struct hil_dev *kbd)
	327	{
	328	struct input_dev *input_dev = kbd->dev;
	329	uint8_t did = kbd->idd[0];
	330	int i;
	331
	332	input_dev->evbit[0] = BIT_MASK(EV_KEY) \| BIT_MASK(EV_REP);
	333	input_dev->ledbit[0] = BIT_MASK(LED_NUML) \| BIT_MASK(LED_CAPSL) \|
	334	BIT_MASK(LED_SCROLLL);
	335
	336	for (i = 0; i < 128; i++) {
	337	__set_bit(hil_kbd_set1[i], input_dev->keybit);
	338	__set_bit(hil_kbd_set3[i], input_dev->keybit);
	339	}
	340	__clear_bit(KEY_RESERVED, input_dev->keybit);
	341
	342	input_dev->keycodemax = HIL_KEYCODES_SET1_TBLSIZE;
	343	input_dev->keycodesize = sizeof(hil_kbd_set1[0]);
	344	input_dev->keycode = hil_kbd_set1;
	345
	346	input_dev->name = strlen(kbd->rnm) ? kbd->rnm : "HIL keyboard";
	347	input_dev->phys = "hpkbd/input0";
	348
	349	printk(KERN_INFO PREFIX "HIL keyboard found (did = 0x%02x, lang = %s)\n",
	350	did, hil_language[did & HIL_IDD_DID_TYPE_KB_LANG_MASK]);
	351	}
	352
	353	static void hil_dev_pointer_setup(struct hil_dev *ptr)
	354	{
	355	struct input_dev *input_dev = ptr->dev;
	356	uint8_t did = ptr->idd[0];
	357	uint8_t *idd = ptr->idd + 1;
	358	unsigned int naxsets = HIL_IDD_NUM_AXSETS(*idd);
	359	unsigned int i, btntype;
	360	const char *txt;
	361
	362	ptr->naxes = HIL_IDD_NUM_AXES_PER_SET(*idd);
	363
	364	switch (did & HIL_IDD_DID_TYPE_MASK) {
	365	case HIL_IDD_DID_TYPE_REL:
	366	input_dev->evbit[0] = BIT_MASK(EV_REL);
	367
	368	for (i = 0; i < ptr->naxes; i++)
	369	__set_bit(REL_X + i, input_dev->relbit);
	370
	371	for (i = 3; naxsets > 1 && i < ptr->naxes + 3; i++)
	372	__set_bit(REL_X + i, input_dev->relbit);
	373
	374	txt = "relative";
	375	break;
	376
	377	case HIL_IDD_DID_TYPE_ABS:
	378	input_dev->evbit[0] = BIT_MASK(EV_ABS);
	379
	380	for (i = 0; i < ptr->naxes; i++)
	381	input_set_abs_params(input_dev, ABS_X + i,
	382	0, HIL_IDD_AXIS_MAX(idd, i), 0, 0);
	383
	384	for (i = 3; naxsets > 1 && i < ptr->naxes + 3; i++)
	385	input_set_abs_params(input_dev, ABS_X + i,
	386	0, HIL_IDD_AXIS_MAX(idd, i - 3), 0, 0);
	387
	388	#ifdef TABLET_AUTOADJUST
	389	for (i = 0; i < ABS_MAX; i++) {
77edf0c7	390	int diff = input_abs_get_max(input_dev, ABS_X + i) / 10;
987a6c02	391	input_abs_set_min(input_dev, ABS_X + i,
77edf0c7	392	input_abs_get_min(input_dev, ABS_X + i) + diff);
b84ae4a1	393	input_abs_set_max(input_dev, ABS_X + i,
77edf0c7	394	input_abs_get_max(input_dev, ABS_X + i) - diff);
fa71c605 DT	395	}
	396	#endif
	397
	398	txt = "absolute";
	399	break;
	400
	401	default:
	402	BUG();
	403	}
	404
	405	ptr->nbtn = HIL_IDD_NUM_BUTTONS(idd);
	406	if (ptr->nbtn)
	407	input_dev->evbit[0] \|= BIT_MASK(EV_KEY);
	408
	409	btntype = BTN_MISC;
	410	if ((did & HIL_IDD_DID_ABS_TABLET_MASK) == HIL_IDD_DID_ABS_TABLET)
	411	#ifdef TABLET_SIMULATES_MOUSE
	412	btntype = BTN_TOUCH;
	413	#else
	414	btntype = BTN_DIGI;
	415	#endif
	416	if ((did & HIL_IDD_DID_ABS_TSCREEN_MASK) == HIL_IDD_DID_ABS_TSCREEN)
	417	btntype = BTN_TOUCH;
	418
	419	if ((did & HIL_IDD_DID_REL_MOUSE_MASK) == HIL_IDD_DID_REL_MOUSE)
	420	btntype = BTN_MOUSE;
	421
	422	for (i = 0; i < ptr->nbtn; i++) {
	423	__set_bit(btntype \| i, input_dev->keybit);
	424	ptr->btnmap[i] = btntype \| i;
	425	}
	426
	427	if (btntype == BTN_MOUSE) {
	428	/* Swap buttons 2 and 3 */
	429	ptr->btnmap[1] = BTN_MIDDLE;
	430	ptr->btnmap[2] = BTN_RIGHT;
	431	}
	432
	433	input_dev->name = strlen(ptr->rnm) ? ptr->rnm : "HIL pointer device";
	434
	435	printk(KERN_INFO PREFIX
	436	"HIL pointer device found (did: 0x%02x, axis: %s)\n",
	437	did, txt);
	438	printk(KERN_INFO PREFIX
	439	"HIL pointer has %i buttons and %i sets of %i axes\n",
	440	ptr->nbtn, naxsets, ptr->naxes);
	441	}
	442
1437dc30	443	static int hil_dev_connect(struct serio serio, struct serio_driver drv)
1da177e4	444	{
1437dc30	445	struct hil_dev *dev;
6777f017 DT	446	struct input_dev *input_dev;
6777f017 DT	447	uint8_t did, *idd;
6777f017	448	int error;
95d465fd	449
1437dc30	450	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
6777f017	451	input_dev = input_allocate_device();
1437dc30	452	if (!dev \|\| !input_dev) {
6777f017	453	error = -ENOMEM;
95d465fd	454	goto bail0;
6777f017	455	}
95d465fd	456
1437dc30 DT	457	dev->serio = serio;
1437dc30 DT	458	dev->dev = input_dev;
6777f017 DT	459
	460	error = serio_open(serio, drv);
	461	if (error)
	462	goto bail0;
1da177e4	463
1437dc30	464	serio_set_drvdata(serio, dev);
1da177e4 LT	465
1da177e4 LT	466	/* Get device info. MLC driver supplies devid/status/etc. */
1437dc30	467	init_completion(&dev->cmd_done);
dd0d5443 DT	468	serio_write(serio, 0);
	469	serio_write(serio, 0);
	470	serio_write(serio, HIL_PKT_CMD >> 8);
	471	serio_write(serio, HIL_CMD_IDD);
1437dc30	472	error = wait_for_completion_killable(&dev->cmd_done);
6777f017 DT	473	if (error)
6777f017 DT	474	goto bail1;
1da177e4	475
cceeb872	476	reinit_completion(&dev->cmd_done);
dd0d5443 DT	477	serio_write(serio, 0);
	478	serio_write(serio, 0);
	479	serio_write(serio, HIL_PKT_CMD >> 8);
	480	serio_write(serio, HIL_CMD_RSC);
1437dc30	481	error = wait_for_completion_killable(&dev->cmd_done);
6777f017 DT	482	if (error)
6777f017 DT	483	goto bail1;
1da177e4	484
cceeb872	485	reinit_completion(&dev->cmd_done);
dd0d5443 DT	486	serio_write(serio, 0);
	487	serio_write(serio, 0);
	488	serio_write(serio, HIL_PKT_CMD >> 8);
	489	serio_write(serio, HIL_CMD_RNM);
1437dc30	490	error = wait_for_completion_killable(&dev->cmd_done);
6777f017 DT	491	if (error)
6777f017 DT	492	goto bail1;
1da177e4	493
cceeb872	494	reinit_completion(&dev->cmd_done);
dd0d5443 DT	495	serio_write(serio, 0);
	496	serio_write(serio, 0);
	497	serio_write(serio, HIL_PKT_CMD >> 8);
	498	serio_write(serio, HIL_CMD_EXD);
1437dc30	499	error = wait_for_completion_killable(&dev->cmd_done);
6777f017 DT	500	if (error)
6777f017 DT	501	goto bail1;
1da177e4	502
1437dc30 DT	503	did = dev->idd[0];
1437dc30 DT	504	idd = dev->idd + 1;
fa71c605	505
1da177e4 LT	506	switch (did & HIL_IDD_DID_TYPE_MASK) {
	507	case HIL_IDD_DID_TYPE_KB_INTEGRAL:
	508	case HIL_IDD_DID_TYPE_KB_ITF:
	509	case HIL_IDD_DID_TYPE_KB_RSVD:
	510	case HIL_IDD_DID_TYPE_CHAR:
fa71c605 DT	511	if (HIL_IDD_NUM_BUTTONS(idd) \|\|
	512	HIL_IDD_NUM_AXES_PER_SET(*idd)) {
	513	printk(KERN_INFO PREFIX
	514	"combo devices are not supported.\n");
	515	goto bail1;
	516	}
	517
	518	dev->is_pointer = false;
	519	hil_dev_keyboard_setup(dev);
1da177e4	520	break;
1da177e4	521
fa71c605 DT	522	case HIL_IDD_DID_TYPE_REL:
	523	case HIL_IDD_DID_TYPE_ABS:
	524	dev->is_pointer = true;
	525	hil_dev_pointer_setup(dev);
	526	break;
	527
	528	default:
6777f017	529	goto bail1;
1da177e4 LT	530	}
1da177e4 LT	531
6777f017 DT	532	input_dev->id.bustype = BUS_HIL;
	533	input_dev->id.vendor = PCI_VENDOR_ID_HP;
	534	input_dev->id.product = 0x0001; /* TODO: get from kbd->rsc */
	535	input_dev->id.version = 0x0100; /* TODO: get from kbd->rsc */
	536	input_dev->dev.parent = &serio->dev;
1da177e4	537
fa71c605 DT	538	if (!dev->is_pointer) {
	539	serio_write(serio, 0);
	540	serio_write(serio, 0);
	541	serio_write(serio, HIL_PKT_CMD >> 8);
	542	/* Enable Keyswitch Autorepeat 1 */
	543	serio_write(serio, HIL_CMD_EK1);
	544	/* No need to wait for completion */
1da177e4	545	}
6777f017	546
1437dc30	547	error = input_register_device(input_dev);
6777f017 DT	548	if (error)
6777f017 DT	549	goto bail1;
1da177e4	550
6ab0f5cd	551	return 0;
6777f017 DT	552
6777f017 DT	553	bail1:
1da177e4	554	serio_close(serio);
d668da80	555	serio_set_drvdata(serio, NULL);
1da177e4	556	bail0:
6777f017	557	input_free_device(input_dev);
1437dc30	558	kfree(dev);
6777f017	559	return error;
1da177e4 LT	560	}
1da177e4 LT	561
1437dc30	562	static struct serio_device_id hil_dev_ids[] = {
6ab0f5cd MW	563	{
	564	.type = SERIO_HIL_MLC,
	565	.proto = SERIO_HIL,
	566	.id = SERIO_ANY,
	567	.extra = SERIO_ANY,
	568	},
	569	{ 0 }
	570	};
1da177e4	571
05e93a74 DK	572	MODULE_DEVICE_TABLE(serio, hil_dev_ids);
05e93a74 DK	573
1437dc30	574	static struct serio_driver hil_serio_drv = {
1da177e4	575	.driver = {
fa71c605	576	.name = "hil_dev",
1da177e4	577	},
fa71c605	578	.description = "HP HIL keyboard/mouse/tablet driver",
1437dc30 DT	579	.id_table = hil_dev_ids,
	580	.connect = hil_dev_connect,
	581	.disconnect = hil_dev_disconnect,
	582	.interrupt = hil_dev_interrupt
1da177e4 LT	583	};
1da177e4 LT	584
65ac9f7a	585	module_serio_driver(hil_serio_drv);