[mirror_ubuntu-jammy-kernel.git] / drivers / input / keyboard / locomokbd.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * LoCoMo keyboard driver for Linux-based ARM PDAs:
 * 	- SHARP Zaurus Collie (SL-5500)
 * 	- SHARP Zaurus Poodle (SL-5600)
 *
 * Copyright (c) 2005 John Lenz
 * Based on from xtkbd.c
 */

#include <linux/slab.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>

#include <asm/hardware/locomo.h>
#include <asm/irq.h>

MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
MODULE_DESCRIPTION("LoCoMo keyboard driver");
MODULE_LICENSE("GPL");

#define LOCOMOKBD_NUMKEYS	128

#define KEY_ACTIVITY		KEY_F16
#define KEY_CONTACT		KEY_F18
#define KEY_CENTER		KEY_F15

static const unsigned char
locomokbd_keycode[LOCOMOKBD_NUMKEYS] = {
	0, KEY_ESC, KEY_ACTIVITY, 0, 0, 0, 0, 0, 0, 0,				/* 0 - 9 */
	0, 0, 0, 0, 0, 0, 0, KEY_MENU, KEY_HOME, KEY_CONTACT,			/* 10 - 19 */
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,						/* 20 - 29 */
	0, 0, 0, KEY_CENTER, 0, KEY_MAIL, 0, 0, 0, 0,				/* 30 - 39 */
	0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RIGHT,					/* 40 - 49 */
	KEY_UP, KEY_LEFT, 0, 0, KEY_P, 0, KEY_O, KEY_I, KEY_Y, KEY_T,		/* 50 - 59 */
	KEY_E, KEY_W, 0, 0, 0, 0, KEY_DOWN, KEY_ENTER, 0, 0,			/* 60 - 69 */
	KEY_BACKSPACE, 0, KEY_L, KEY_U, KEY_H, KEY_R, KEY_D, KEY_Q, 0, 0,	/* 70 - 79 */
	0, 0, 0, 0, 0, 0, KEY_ENTER, KEY_RIGHTSHIFT, KEY_K, KEY_J,		/* 80 - 89 */
	KEY_G, KEY_F, KEY_X, KEY_S, 0, 0, 0, 0, 0, 0,				/* 90 - 99 */
	0, 0, KEY_DOT, 0, KEY_COMMA, KEY_N, KEY_B, KEY_C, KEY_Z, KEY_A,		/* 100 - 109 */
	KEY_LEFTSHIFT, KEY_TAB, KEY_LEFTCTRL, 0, 0, 0, 0, 0, 0, 0,		/* 110 - 119 */
	KEY_M, KEY_SPACE, KEY_V, KEY_APOSTROPHE, KEY_SLASH, 0, 0, 0		/* 120 - 128 */
};

#define KB_ROWS			16
#define KB_COLS			8
#define KB_ROWMASK(r)		(1 << (r))
#define SCANCODE(c,r)		( ((c)<<4) + (r) + 1 )

#define KB_DELAY		8
#define SCAN_INTERVAL		(HZ/10)

struct locomokbd {
	unsigned char keycode[LOCOMOKBD_NUMKEYS];
	struct input_dev *input;
	char phys[32];

	unsigned long base;
	spinlock_t lock;

	struct timer_list timer;
	unsigned long suspend_jiffies;
	unsigned int count_cancel;
};

/* helper functions for reading the keyboard matrix */
static inline void locomokbd_charge_all(unsigned long membase)
{
	locomo_writel(0x00FF, membase + LOCOMO_KSC);
}

static inline void locomokbd_activate_all(unsigned long membase)
{
	unsigned long r;

	locomo_writel(0, membase + LOCOMO_KSC);
	r = locomo_readl(membase + LOCOMO_KIC);
	r &= 0xFEFF;
	locomo_writel(r, membase + LOCOMO_KIC);
}

static inline void locomokbd_activate_col(unsigned long membase, int col)
{
	unsigned short nset;
	unsigned short nbset;

	nset = 0xFF & ~(1 << col);
	nbset = (nset << 8) + nset;
	locomo_writel(nbset, membase + LOCOMO_KSC);
}

static inline void locomokbd_reset_col(unsigned long membase, int col)
{
	unsigned short nbset;

	nbset = ((0xFF & ~(1 << col)) << 8) + 0xFF;
	locomo_writel(nbset, membase + LOCOMO_KSC);
}

/*
 * The LoCoMo keyboard only generates interrupts when a key is pressed.
 * So when a key is pressed, we enable a timer.  This timer scans the
 * keyboard, and this is how we detect when the key is released.
 */

/* Scan the hardware keyboard and push any changes up through the input layer */
static void locomokbd_scankeyboard(struct locomokbd *locomokbd)
{
	unsigned int row, col, rowd;
	unsigned long flags;
	unsigned int num_pressed;
	unsigned long membase = locomokbd->base;

	spin_lock_irqsave(&locomokbd->lock, flags);

	locomokbd_charge_all(membase);

	num_pressed = 0;
	for (col = 0; col < KB_COLS; col++) {

		locomokbd_activate_col(membase, col);
		udelay(KB_DELAY);

		rowd = ~locomo_readl(membase + LOCOMO_KIB);
		for (row = 0; row < KB_ROWS; row++) {
			unsigned int scancode, pressed, key;

			scancode = SCANCODE(col, row);
			pressed = rowd & KB_ROWMASK(row);
			key = locomokbd->keycode[scancode];

			input_report_key(locomokbd->input, key, pressed);
			if (likely(!pressed))
				continue;

			num_pressed++;

			/* The "Cancel/ESC" key is labeled "On/Off" on
			 * Collie and Poodle and should suspend the device
			 * if it was pressed for more than a second. */
			if (unlikely(key == KEY_ESC)) {
				if (!time_after(jiffies,
					locomokbd->suspend_jiffies + HZ))
					continue;
				if (locomokbd->count_cancel++
					!= (HZ/SCAN_INTERVAL + 1))
					continue;
				input_event(locomokbd->input, EV_PWR,
					KEY_SUSPEND, 1);
				locomokbd->suspend_jiffies = jiffies;
			} else
				locomokbd->count_cancel = 0;
		}
		locomokbd_reset_col(membase, col);
	}
	locomokbd_activate_all(membase);

	input_sync(locomokbd->input);

	/* if any keys are pressed, enable the timer */
	if (num_pressed)
		mod_timer(&locomokbd->timer, jiffies + SCAN_INTERVAL);
	else
		locomokbd->count_cancel = 0;

	spin_unlock_irqrestore(&locomokbd->lock, flags);
}

/*
 * LoCoMo keyboard interrupt handler.
 */
static irqreturn_t locomokbd_interrupt(int irq, void *dev_id)
{
	struct locomokbd *locomokbd = dev_id;
	u16 r;

	r = locomo_readl(locomokbd->base + LOCOMO_KIC);
	if ((r & 0x0001) == 0)
		return IRQ_HANDLED;

	locomo_writel(r & ~0x0100, locomokbd->base + LOCOMO_KIC); /* Ack */

	/** wait chattering delay **/
	udelay(100);

	locomokbd_scankeyboard(locomokbd);
	return IRQ_HANDLED;
}

/*
 * LoCoMo timer checking for released keys
 */
static void locomokbd_timer_callback(struct timer_list *t)
{
	struct locomokbd *locomokbd = from_timer(locomokbd, t, timer);

	locomokbd_scankeyboard(locomokbd);
}

static int locomokbd_open(struct input_dev *dev)
{
	struct locomokbd *locomokbd = input_get_drvdata(dev);
	u16 r;
	
	r = locomo_readl(locomokbd->base + LOCOMO_KIC) | 0x0010;
	locomo_writel(r, locomokbd->base + LOCOMO_KIC);
	return 0;
}

static void locomokbd_close(struct input_dev *dev)
{
	struct locomokbd *locomokbd = input_get_drvdata(dev);
	u16 r;
	
	r = locomo_readl(locomokbd->base + LOCOMO_KIC) & ~0x0010;
	locomo_writel(r, locomokbd->base + LOCOMO_KIC);
}

static int locomokbd_probe(struct locomo_dev *dev)
{
	struct locomokbd *locomokbd;
	struct input_dev *input_dev;
	int i, err;

	locomokbd = kzalloc(sizeof(struct locomokbd), GFP_KERNEL);
	input_dev = input_allocate_device();
	if (!locomokbd || !input_dev) {
		err = -ENOMEM;
		goto err_free_mem;
	}

	/* try and claim memory region */
	if (!request_mem_region((unsigned long) dev->mapbase,
				dev->length,
				LOCOMO_DRIVER_NAME(dev))) {
		err = -EBUSY;
		printk(KERN_ERR "locomokbd: Can't acquire access to io memory for keyboard\n");
		goto err_free_mem;
	}

	locomo_set_drvdata(dev, locomokbd);

	locomokbd->base = (unsigned long) dev->mapbase;

	spin_lock_init(&locomokbd->lock);

	timer_setup(&locomokbd->timer, locomokbd_timer_callback, 0);

	locomokbd->suspend_jiffies = jiffies;

	locomokbd->input = input_dev;
	strcpy(locomokbd->phys, "locomokbd/input0");

	input_dev->name = "LoCoMo keyboard";
	input_dev->phys = locomokbd->phys;
	input_dev->id.bustype = BUS_HOST;
	input_dev->id.vendor = 0x0001;
	input_dev->id.product = 0x0001;
	input_dev->id.version = 0x0100;
	input_dev->open = locomokbd_open;
	input_dev->close = locomokbd_close;
	input_dev->dev.parent = &dev->dev;

	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
				BIT_MASK(EV_PWR);
	input_dev->keycode = locomokbd->keycode;
	input_dev->keycodesize = sizeof(locomokbd_keycode[0]);
	input_dev->keycodemax = ARRAY_SIZE(locomokbd_keycode);

	input_set_drvdata(input_dev, locomokbd);

	memcpy(locomokbd->keycode, locomokbd_keycode, sizeof(locomokbd->keycode));
	for (i = 0; i < LOCOMOKBD_NUMKEYS; i++)
		set_bit(locomokbd->keycode[i], input_dev->keybit);
	clear_bit(0, input_dev->keybit);

	/* attempt to get the interrupt */
	err = request_irq(dev->irq[0], locomokbd_interrupt, 0, "locomokbd", locomokbd);
	if (err) {
		printk(KERN_ERR "locomokbd: Can't get irq for keyboard\n");
		goto err_release_region;
	}

	err = input_register_device(locomokbd->input);
	if (err)
		goto err_free_irq;

	return 0;

 err_free_irq:
	free_irq(dev->irq[0], locomokbd);
 err_release_region:
	release_mem_region((unsigned long) dev->mapbase, dev->length);
	locomo_set_drvdata(dev, NULL);
 err_free_mem:
	input_free_device(input_dev);
	kfree(locomokbd);

	return err;
}

static void locomokbd_remove(struct locomo_dev *dev)
{
	struct locomokbd *locomokbd = locomo_get_drvdata(dev);

	free_irq(dev->irq[0], locomokbd);

	del_timer_sync(&locomokbd->timer);

	input_unregister_device(locomokbd->input);
	locomo_set_drvdata(dev, NULL);

	release_mem_region((unsigned long) dev->mapbase, dev->length);

	kfree(locomokbd);
}

static struct locomo_driver keyboard_driver = {
	.drv = {
		.name = "locomokbd"
	},
	.devid	= LOCOMO_DEVID_KEYBOARD,
	.probe	= locomokbd_probe,
	.remove	= locomokbd_remove,
};

static int __init locomokbd_init(void)
{
	return locomo_driver_register(&keyboard_driver);
}

static void __exit locomokbd_exit(void)
{
	locomo_driver_unregister(&keyboard_driver);
}

module_init(locomokbd_init);
module_exit(locomokbd_exit);
Commit	Line	Data
1a59d1b8	1	// SPDX-License-Identifier: GPL-2.0-or-later
1da177e4	2	/*
e6cdd156 HD	3	* LoCoMo keyboard driver for Linux-based ARM PDAs:
	4	* - SHARP Zaurus Collie (SL-5500)
	5	* - SHARP Zaurus Poodle (SL-5600)
1da177e4	6	*
e6cdd156	7	* Copyright (c) 2005 John Lenz
1da177e4	8	* Based on from xtkbd.c
1da177e4 LT	9	*/
1da177e4 LT	10
1da177e4 LT	11	#include <linux/slab.h>
	12	#include <linux/module.h>
	13	#include <linux/init.h>
	14	#include <linux/input.h>
	15	#include <linux/delay.h>
	16	#include <linux/device.h>
	17	#include <linux/interrupt.h>
	18	#include <linux/ioport.h>
	19
	20	#include <asm/hardware/locomo.h>
	21	#include <asm/irq.h>
	22
	23	MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
	24	MODULE_DESCRIPTION("LoCoMo keyboard driver");
	25	MODULE_LICENSE("GPL");
	26
d083e906	27	#define LOCOMOKBD_NUMKEYS 128
1da177e4 LT	28
	29	#define KEY_ACTIVITY KEY_F16
	30	#define KEY_CONTACT KEY_F18
	31	#define KEY_CENTER KEY_F15
	32
e6cdd156	33	static const unsigned char
78f50c24	34	locomokbd_keycode[LOCOMOKBD_NUMKEYS] = {
1da177e4 LT	35	0, KEY_ESC, KEY_ACTIVITY, 0, 0, 0, 0, 0, 0, 0, /* 0 - 9 */
	36	0, 0, 0, 0, 0, 0, 0, KEY_MENU, KEY_HOME, KEY_CONTACT, /* 10 - 19 */
	37	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 20 - 29 */
	38	0, 0, 0, KEY_CENTER, 0, KEY_MAIL, 0, 0, 0, 0, /* 30 - 39 */
	39	0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RIGHT, /* 40 - 49 */
	40	KEY_UP, KEY_LEFT, 0, 0, KEY_P, 0, KEY_O, KEY_I, KEY_Y, KEY_T, /* 50 - 59 */
	41	KEY_E, KEY_W, 0, 0, 0, 0, KEY_DOWN, KEY_ENTER, 0, 0, /* 60 - 69 */
	42	KEY_BACKSPACE, 0, KEY_L, KEY_U, KEY_H, KEY_R, KEY_D, KEY_Q, 0, 0, /* 70 - 79 */
	43	0, 0, 0, 0, 0, 0, KEY_ENTER, KEY_RIGHTSHIFT, KEY_K, KEY_J, /* 80 - 89 */
	44	KEY_G, KEY_F, KEY_X, KEY_S, 0, 0, 0, 0, 0, 0, /* 90 - 99 */
	45	0, 0, KEY_DOT, 0, KEY_COMMA, KEY_N, KEY_B, KEY_C, KEY_Z, KEY_A, /* 100 - 109 */
	46	KEY_LEFTSHIFT, KEY_TAB, KEY_LEFTCTRL, 0, 0, 0, 0, 0, 0, 0, /* 110 - 119 */
d083e906	47	KEY_M, KEY_SPACE, KEY_V, KEY_APOSTROPHE, KEY_SLASH, 0, 0, 0 /* 120 - 128 */
1da177e4 LT	48	};
	49
	50	#define KB_ROWS 16
	51	#define KB_COLS 8
	52	#define KB_ROWMASK(r) (1 << (r))
	53	#define SCANCODE(c,r) ( ((c)<<4) + (r) + 1 )
1da177e4 LT	54
	55	#define KB_DELAY 8
	56	#define SCAN_INTERVAL (HZ/10)
1da177e4 LT	57
	58	struct locomokbd {
	59	unsigned char keycode[LOCOMOKBD_NUMKEYS];
438c9da5	60	struct input_dev *input;
1da177e4 LT	61	char phys[32];
1da177e4 LT	62
1da177e4 LT	63	unsigned long base;
1da177e4 LT	64	spinlock_t lock;
d083e906	65
1da177e4	66	struct timer_list timer;
e6cdd156 HD	67	unsigned long suspend_jiffies;
e6cdd156 HD	68	unsigned int count_cancel;
1da177e4 LT	69	};
	70
	71	/* helper functions for reading the keyboard matrix */
	72	static inline void locomokbd_charge_all(unsigned long membase)
	73	{
	74	locomo_writel(0x00FF, membase + LOCOMO_KSC);
	75	}
	76
	77	static inline void locomokbd_activate_all(unsigned long membase)
	78	{
	79	unsigned long r;
d083e906	80
1da177e4 LT	81	locomo_writel(0, membase + LOCOMO_KSC);
	82	r = locomo_readl(membase + LOCOMO_KIC);
	83	r &= 0xFEFF;
	84	locomo_writel(r, membase + LOCOMO_KIC);
	85	}
	86
	87	static inline void locomokbd_activate_col(unsigned long membase, int col)
	88	{
	89	unsigned short nset;
	90	unsigned short nbset;
	91
	92	nset = 0xFF & ~(1 << col);
	93	nbset = (nset << 8) + nset;
	94	locomo_writel(nbset, membase + LOCOMO_KSC);
	95	}
	96
	97	static inline void locomokbd_reset_col(unsigned long membase, int col)
	98	{
	99	unsigned short nbset;
	100
	101	nbset = ((0xFF & ~(1 << col)) << 8) + 0xFF;
	102	locomo_writel(nbset, membase + LOCOMO_KSC);
	103	}
	104
	105	/*
	106	* The LoCoMo keyboard only generates interrupts when a key is pressed.
	107	* So when a key is pressed, we enable a timer. This timer scans the
	108	* keyboard, and this is how we detect when the key is released.
	109	*/
	110
	111	/* Scan the hardware keyboard and push any changes up through the input layer */
7d12e780	112	static void locomokbd_scankeyboard(struct locomokbd *locomokbd)
1da177e4	113	{
e6cdd156	114	unsigned int row, col, rowd;
1da177e4 LT	115	unsigned long flags;
	116	unsigned int num_pressed;
	117	unsigned long membase = locomokbd->base;
	118
	119	spin_lock_irqsave(&locomokbd->lock, flags);
	120
1da177e4 LT	121	locomokbd_charge_all(membase);
	122
	123	num_pressed = 0;
	124	for (col = 0; col < KB_COLS; col++) {
	125
	126	locomokbd_activate_col(membase, col);
	127	udelay(KB_DELAY);
d083e906	128
1da177e4	129	rowd = ~locomo_readl(membase + LOCOMO_KIB);
d083e906	130	for (row = 0; row < KB_ROWS; row++) {
e6cdd156 HD	131	unsigned int scancode, pressed, key;
e6cdd156 HD	132
1da177e4	133	scancode = SCANCODE(col, row);
e6cdd156 HD	134	pressed = rowd & KB_ROWMASK(row);
	135	key = locomokbd->keycode[scancode];
	136
	137	input_report_key(locomokbd->input, key, pressed);
	138	if (likely(!pressed))
	139	continue;
	140
	141	num_pressed++;
	142
	143	/* The "Cancel/ESC" key is labeled "On/Off" on
	144	* Collie and Poodle and should suspend the device
	145	* if it was pressed for more than a second. */
	146	if (unlikely(key == KEY_ESC)) {
	147	if (!time_after(jiffies,
	148	locomokbd->suspend_jiffies + HZ))
	149	continue;
	150	if (locomokbd->count_cancel++
	151	!= (HZ/SCAN_INTERVAL + 1))
	152	continue;
	153	input_event(locomokbd->input, EV_PWR,
	154	KEY_SUSPEND, 1);
	155	locomokbd->suspend_jiffies = jiffies;
	156	} else
	157	locomokbd->count_cancel = 0;
1da177e4 LT	158	}
	159	locomokbd_reset_col(membase, col);
	160	}
	161	locomokbd_activate_all(membase);
	162
438c9da5	163	input_sync(locomokbd->input);
1da177e4 LT	164
	165	/* if any keys are pressed, enable the timer */
	166	if (num_pressed)
	167	mod_timer(&locomokbd->timer, jiffies + SCAN_INTERVAL);
e6cdd156 HD	168	else
e6cdd156 HD	169	locomokbd->count_cancel = 0;
1da177e4 LT	170
	171	spin_unlock_irqrestore(&locomokbd->lock, flags);
	172	}
	173
d083e906	174	/*
1da177e4 LT	175	* LoCoMo keyboard interrupt handler.
1da177e4 LT	176	*/
7d12e780	177	static irqreturn_t locomokbd_interrupt(int irq, void *dev_id)
1da177e4 LT	178	{
1da177e4 LT	179	struct locomokbd *locomokbd = dev_id;
da8065ac EM	180	u16 r;
	181
	182	r = locomo_readl(locomokbd->base + LOCOMO_KIC);
	183	if ((r & 0x0001) == 0)
	184	return IRQ_HANDLED;
	185
	186	locomo_writel(r & ~0x0100, locomokbd->base + LOCOMO_KIC); /* Ack */
	187
1da177e4 LT	188	/ wait chattering delay /
	189	udelay(100);
	190
7d12e780	191	locomokbd_scankeyboard(locomokbd);
1da177e4 LT	192	return IRQ_HANDLED;
	193	}
	194
	195	/*
	196	* LoCoMo timer checking for released keys
	197	*/
4ea40278	198	static void locomokbd_timer_callback(struct timer_list *t)
1da177e4	199	{
4ea40278	200	struct locomokbd *locomokbd = from_timer(locomokbd, t, timer);
e6cdd156	201
36bd262b	202	locomokbd_scankeyboard(locomokbd);
1da177e4 LT	203	}
1da177e4 LT	204
da8065ac EM	205	static int locomokbd_open(struct input_dev *dev)
	206	{
	207	struct locomokbd *locomokbd = input_get_drvdata(dev);
	208	u16 r;
	209
	210	r = locomo_readl(locomokbd->base + LOCOMO_KIC) \| 0x0010;
	211	locomo_writel(r, locomokbd->base + LOCOMO_KIC);
	212	return 0;
	213	}
	214
	215	static void locomokbd_close(struct input_dev *dev)
	216	{
	217	struct locomokbd *locomokbd = input_get_drvdata(dev);
	218	u16 r;
	219
	220	r = locomo_readl(locomokbd->base + LOCOMO_KIC) & ~0x0010;
	221	locomo_writel(r, locomokbd->base + LOCOMO_KIC);
	222	}
	223
5298cc4c	224	static int locomokbd_probe(struct locomo_dev *dev)
1da177e4 LT	225	{
1da177e4 LT	226	struct locomokbd *locomokbd;
438c9da5	227	struct input_dev *input_dev;
2b03b60e	228	int i, err;
1da177e4	229
438c9da5 DT	230	locomokbd = kzalloc(sizeof(struct locomokbd), GFP_KERNEL);
	231	input_dev = input_allocate_device();
	232	if (!locomokbd \|\| !input_dev) {
2b03b60e DT	233	err = -ENOMEM;
2b03b60e DT	234	goto err_free_mem;
438c9da5	235	}
1da177e4 LT	236
1da177e4 LT	237	/* try and claim memory region */
d083e906 DT	238	if (!request_mem_region((unsigned long) dev->mapbase,
d083e906 DT	239	dev->length,
1da177e4	240	LOCOMO_DRIVER_NAME(dev))) {
2b03b60e	241	err = -EBUSY;
1da177e4	242	printk(KERN_ERR "locomokbd: Can't acquire access to io memory for keyboard\n");
2b03b60e	243	goto err_free_mem;
1da177e4 LT	244	}
1da177e4 LT	245
1da177e4 LT	246	locomo_set_drvdata(dev, locomokbd);
	247
	248	locomokbd->base = (unsigned long) dev->mapbase;
	249
	250	spin_lock_init(&locomokbd->lock);
	251
4ea40278	252	timer_setup(&locomokbd->timer, locomokbd_timer_callback, 0);
1da177e4	253
e6cdd156 HD	254	locomokbd->suspend_jiffies = jiffies;
e6cdd156 HD	255
438c9da5 DT	256	locomokbd->input = input_dev;
	257	strcpy(locomokbd->phys, "locomokbd/input0");
	258
	259	input_dev->name = "LoCoMo keyboard";
	260	input_dev->phys = locomokbd->phys;
d7a767dd	261	input_dev->id.bustype = BUS_HOST;
438c9da5 DT	262	input_dev->id.vendor = 0x0001;
	263	input_dev->id.product = 0x0001;
	264	input_dev->id.version = 0x0100;
da8065ac EM	265	input_dev->open = locomokbd_open;
da8065ac EM	266	input_dev->close = locomokbd_close;
469ba4df	267	input_dev->dev.parent = &dev->dev;
d083e906	268
e6cdd156 HD	269	input_dev->evbit[0] = BIT_MASK(EV_KEY) \| BIT_MASK(EV_REP) \|
e6cdd156 HD	270	BIT_MASK(EV_PWR);
438c9da5	271	input_dev->keycode = locomokbd->keycode;
e6cdd156	272	input_dev->keycodesize = sizeof(locomokbd_keycode[0]);
438c9da5	273	input_dev->keycodemax = ARRAY_SIZE(locomokbd_keycode);
1da177e4	274
da8065ac EM	275	input_set_drvdata(input_dev, locomokbd);
da8065ac EM	276
1da177e4 LT	277	memcpy(locomokbd->keycode, locomokbd_keycode, sizeof(locomokbd->keycode));
1da177e4 LT	278	for (i = 0; i < LOCOMOKBD_NUMKEYS; i++)
438c9da5 DT	279	set_bit(locomokbd->keycode[i], input_dev->keybit);
438c9da5 DT	280	clear_bit(0, input_dev->keybit);
1da177e4 LT	281
1da177e4 LT	282	/* attempt to get the interrupt */
2b03b60e DT	283	err = request_irq(dev->irq[0], locomokbd_interrupt, 0, "locomokbd", locomokbd);
2b03b60e DT	284	if (err) {
1da177e4	285	printk(KERN_ERR "locomokbd: Can't get irq for keyboard\n");
2b03b60e	286	goto err_release_region;
1da177e4 LT	287	}
1da177e4 LT	288
2b03b60e DT	289	err = input_register_device(locomokbd->input);
	290	if (err)
	291	goto err_free_irq;
1da177e4 LT	292
	293	return 0;
	294
2b03b60e DT	295	err_free_irq:
	296	free_irq(dev->irq[0], locomokbd);
	297	err_release_region:
1da177e4 LT	298	release_mem_region((unsigned long) dev->mapbase, dev->length);
1da177e4 LT	299	locomo_set_drvdata(dev, NULL);
2b03b60e	300	err_free_mem:
438c9da5	301	input_free_device(input_dev);
1da177e4 LT	302	kfree(locomokbd);
1da177e4 LT	303
2b03b60e	304	return err;
1da177e4 LT	305	}
1da177e4 LT	306
33d6d2bb	307	static void locomokbd_remove(struct locomo_dev *dev)
1da177e4 LT	308	{
1da177e4 LT	309	struct locomokbd *locomokbd = locomo_get_drvdata(dev);
d083e906	310
1da177e4 LT	311	free_irq(dev->irq[0], locomokbd);
	312
	313	del_timer_sync(&locomokbd->timer);
d083e906	314
438c9da5	315	input_unregister_device(locomokbd->input);
1da177e4 LT	316	locomo_set_drvdata(dev, NULL);
	317
	318	release_mem_region((unsigned long) dev->mapbase, dev->length);
	319
	320	kfree(locomokbd);
1da177e4 LT	321	}
	322
	323	static struct locomo_driver keyboard_driver = {
	324	.drv = {
	325	.name = "locomokbd"
	326	},
	327	.devid = LOCOMO_DEVID_KEYBOARD,
	328	.probe = locomokbd_probe,
1cb0aa88	329	.remove = locomokbd_remove,
1da177e4 LT	330	};
	331
	332	static int __init locomokbd_init(void)
	333	{
	334	return locomo_driver_register(&keyboard_driver);
	335	}
	336
	337	static void __exit locomokbd_exit(void)
	338	{
	339	locomo_driver_unregister(&keyboard_driver);
	340	}
	341
	342	module_init(locomokbd_init);
	343	module_exit(locomokbd_exit);