[mirror_ubuntu-artful-kernel.git] / drivers / input / keyboard / newtonkbd.c

/*
 *  Copyright (c) 2000 Justin Cormack
 */

/*
 * Newton keyboard driver for Linux
 */

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * Should you need to contact me, the author, you can do so either by
 * e-mail - mail your message to <j.cormack@doc.ic.ac.uk>, or by paper mail:
 * Justin Cormack, 68 Dartmouth Park Road, London NW5 1SN, UK.
 */

#include <linux/slab.h>
#include <linux/module.h>
#include <linux/input.h>
#include <linux/init.h>
#include <linux/serio.h>

#define DRIVER_DESC	"Newton keyboard driver"

MODULE_AUTHOR("Justin Cormack <j.cormack@doc.ic.ac.uk>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");

#define NKBD_KEY	0x7f
#define NKBD_PRESS	0x80

static unsigned char nkbd_keycode[128] = {
	KEY_A, KEY_S, KEY_D, KEY_F, KEY_H, KEY_G, KEY_Z, KEY_X,
	KEY_C, KEY_V, 0, KEY_B, KEY_Q, KEY_W, KEY_E, KEY_R,
	KEY_Y, KEY_T, KEY_1, KEY_2, KEY_3, KEY_4, KEY_6, KEY_5,
	KEY_EQUAL, KEY_9, KEY_7, KEY_MINUS, KEY_8, KEY_0, KEY_RIGHTBRACE, KEY_O,
	KEY_U, KEY_LEFTBRACE, KEY_I, KEY_P, KEY_ENTER, KEY_L, KEY_J, KEY_APOSTROPHE,
	KEY_K, KEY_SEMICOLON, KEY_BACKSLASH, KEY_COMMA, KEY_SLASH, KEY_N, KEY_M, KEY_DOT,
	KEY_TAB, KEY_SPACE, KEY_GRAVE, KEY_DELETE, 0, 0, 0, KEY_LEFTMETA,
	KEY_LEFTSHIFT, KEY_CAPSLOCK, KEY_LEFTALT, KEY_LEFTCTRL, KEY_RIGHTSHIFT, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	KEY_LEFT, KEY_RIGHT, KEY_DOWN, KEY_UP, 0
};

struct nkbd {
	unsigned char keycode[128];
	struct input_dev *dev;
	struct serio *serio;
	char phys[32];
};

static irqreturn_t nkbd_interrupt(struct serio *serio,
		unsigned char data, unsigned int flags)
{
	struct nkbd *nkbd = serio_get_drvdata(serio);

	/* invalid scan codes are probably the init sequence, so we ignore them */
	if (nkbd->keycode[data & NKBD_KEY]) {
		input_report_key(nkbd->dev, nkbd->keycode[data & NKBD_KEY], data & NKBD_PRESS);
		input_sync(nkbd->dev);
	}

	else if (data == 0xe7) /* end of init sequence */
		printk(KERN_INFO "input: %s on %s\n", nkbd->dev->name, serio->phys);
	return IRQ_HANDLED;

}

static int nkbd_connect(struct serio *serio, struct serio_driver *drv)
{
	struct nkbd *nkbd;
	struct input_dev *input_dev;
	int err = -ENOMEM;
	int i;

	nkbd = kzalloc(sizeof(struct nkbd), GFP_KERNEL);
	input_dev = input_allocate_device();
	if (!nkbd || !input_dev)
		goto fail;

	nkbd->serio = serio;
	nkbd->dev = input_dev;
	snprintf(nkbd->phys, sizeof(nkbd->phys), "%s/input0", serio->phys);
	memcpy(nkbd->keycode, nkbd_keycode, sizeof(nkbd->keycode));

	input_dev->name = "Newton Keyboard";
	input_dev->phys = nkbd->phys;
	input_dev->id.bustype = BUS_RS232;
	input_dev->id.vendor = SERIO_NEWTON;
	input_dev->id.product = 0x0001;
	input_dev->id.version = 0x0100;
	input_dev->cdev.dev = &serio->dev;
	input_dev->private = nkbd;

	input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
	input_dev->keycode = nkbd->keycode;
	input_dev->keycodesize = sizeof(unsigned char);
	input_dev->keycodemax = ARRAY_SIZE(nkbd_keycode);
	for (i = 0; i < 128; i++)
		set_bit(nkbd->keycode[i], input_dev->keybit);
	clear_bit(0, input_dev->keybit);

	serio_set_drvdata(serio, nkbd);

	err = serio_open(serio, drv);
	if (err)
		goto fail;

	input_register_device(nkbd->dev);
	return 0;

 fail:	serio_set_drvdata(serio, NULL);
	input_free_device(input_dev);
	kfree(nkbd);
	return err;
}

static void nkbd_disconnect(struct serio *serio)
{
	struct nkbd *nkbd = serio_get_drvdata(serio);

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

static struct serio_device_id nkbd_serio_ids[] = {
	{
		.type	= SERIO_RS232,
		.proto	= SERIO_NEWTON,
		.id	= SERIO_ANY,
		.extra	= SERIO_ANY,
	},
	{ 0 }
};

MODULE_DEVICE_TABLE(serio, nkbd_serio_ids);

static struct serio_driver nkbd_drv = {
	.driver		= {
		.name	= "newtonkbd",
	},
	.description	= DRIVER_DESC,
	.id_table	= nkbd_serio_ids,
	.interrupt	= nkbd_interrupt,
	.connect	= nkbd_connect,
	.disconnect	= nkbd_disconnect,
};

static int __init nkbd_init(void)
{
	serio_register_driver(&nkbd_drv);
	return 0;
}

static void __exit nkbd_exit(void)
{
	serio_unregister_driver(&nkbd_drv);
}

module_init(nkbd_init);
module_exit(nkbd_exit);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Copyright (c) 2000 Justin Cormack
	3	*/
	4
	5	/*
	6	* Newton keyboard driver for Linux
	7	*/
	8
	9	/*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License as published by
	12	* the Free Software Foundation; either version 2 of the License, or
	13	* (at your option) any later version.
	14	*
	15	* This program is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	* GNU General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU General Public License
	21	* along with this program; if not, write to the Free Software
	22	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	23	*
	24	* Should you need to contact me, the author, you can do so either by
	25	* e-mail - mail your message to <j.cormack@doc.ic.ac.uk>, or by paper mail:
	26	* Justin Cormack, 68 Dartmouth Park Road, London NW5 1SN, UK.
	27	*/
	28
	29	#include <linux/slab.h>
	30	#include <linux/module.h>
	31	#include <linux/input.h>
	32	#include <linux/init.h>
	33	#include <linux/serio.h>
	34
	35	#define DRIVER_DESC "Newton keyboard driver"
	36
	37	MODULE_AUTHOR("Justin Cormack <j.cormack@doc.ic.ac.uk>");
	38	MODULE_DESCRIPTION(DRIVER_DESC);
	39	MODULE_LICENSE("GPL");
	40
	41	#define NKBD_KEY 0x7f
	42	#define NKBD_PRESS 0x80
	43
	44	static unsigned char nkbd_keycode[128] = {
	45	KEY_A, KEY_S, KEY_D, KEY_F, KEY_H, KEY_G, KEY_Z, KEY_X,
	46	KEY_C, KEY_V, 0, KEY_B, KEY_Q, KEY_W, KEY_E, KEY_R,
	47	KEY_Y, KEY_T, KEY_1, KEY_2, KEY_3, KEY_4, KEY_6, KEY_5,
	48	KEY_EQUAL, KEY_9, KEY_7, KEY_MINUS, KEY_8, KEY_0, KEY_RIGHTBRACE, KEY_O,
	49	KEY_U, KEY_LEFTBRACE, KEY_I, KEY_P, KEY_ENTER, KEY_L, KEY_J, KEY_APOSTROPHE,
	50	KEY_K, KEY_SEMICOLON, KEY_BACKSLASH, KEY_COMMA, KEY_SLASH, KEY_N, KEY_M, KEY_DOT,
	51	KEY_TAB, KEY_SPACE, KEY_GRAVE, KEY_DELETE, 0, 0, 0, KEY_LEFTMETA,
	52	KEY_LEFTSHIFT, KEY_CAPSLOCK, KEY_LEFTALT, KEY_LEFTCTRL, KEY_RIGHTSHIFT, 0, 0, 0,
	53	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	54	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	55	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	56	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	57	KEY_LEFT, KEY_RIGHT, KEY_DOWN, KEY_UP, 0
	58	};
	59
1da177e4 LT	60	struct nkbd {
1da177e4 LT	61	unsigned char keycode[128];
3c42f0c3	62	struct input_dev *dev;
1da177e4 LT	63	struct serio *serio;
	64	char phys[32];
	65	};
	66
	67	static irqreturn_t nkbd_interrupt(struct serio *serio,
7d12e780	68	unsigned char data, unsigned int flags)
1da177e4 LT	69	{
	70	struct nkbd *nkbd = serio_get_drvdata(serio);
	71
	72	/* invalid scan codes are probably the init sequence, so we ignore them */
	73	if (nkbd->keycode[data & NKBD_KEY]) {
3c42f0c3 DT	74	input_report_key(nkbd->dev, nkbd->keycode[data & NKBD_KEY], data & NKBD_PRESS);
3c42f0c3 DT	75	input_sync(nkbd->dev);
1da177e4 LT	76	}
	77
	78	else if (data == 0xe7) /* end of init sequence */
3c42f0c3	79	printk(KERN_INFO "input: %s on %s\n", nkbd->dev->name, serio->phys);
1da177e4 LT	80	return IRQ_HANDLED;
	81
	82	}
	83
	84	static int nkbd_connect(struct serio serio, struct serio_driver drv)
	85	{
	86	struct nkbd *nkbd;
3c42f0c3 DT	87	struct input_dev *input_dev;
3c42f0c3 DT	88	int err = -ENOMEM;
1da177e4	89	int i;
1da177e4	90
3c42f0c3 DT	91	nkbd = kzalloc(sizeof(struct nkbd), GFP_KERNEL);
	92	input_dev = input_allocate_device();
	93	if (!nkbd \|\| !input_dev)
	94	goto fail;
1da177e4 LT	95
1da177e4 LT	96	nkbd->serio = serio;
3c42f0c3	97	nkbd->dev = input_dev;
ea08c6fa	98	snprintf(nkbd->phys, sizeof(nkbd->phys), "%s/input0", serio->phys);
3c42f0c3	99	memcpy(nkbd->keycode, nkbd_keycode, sizeof(nkbd->keycode));
1da177e4	100
3c42f0c3 DT	101	input_dev->name = "Newton Keyboard";
	102	input_dev->phys = nkbd->phys;
	103	input_dev->id.bustype = BUS_RS232;
	104	input_dev->id.vendor = SERIO_NEWTON;
	105	input_dev->id.product = 0x0001;
	106	input_dev->id.version = 0x0100;
	107	input_dev->cdev.dev = &serio->dev;
	108	input_dev->private = nkbd;
	109
	110	input_dev->evbit[0] = BIT(EV_KEY) \| BIT(EV_REP);
	111	input_dev->keycode = nkbd->keycode;
	112	input_dev->keycodesize = sizeof(unsigned char);
	113	input_dev->keycodemax = ARRAY_SIZE(nkbd_keycode);
	114	for (i = 0; i < 128; i++)
	115	set_bit(nkbd->keycode[i], input_dev->keybit);
	116	clear_bit(0, input_dev->keybit);
1da177e4 LT	117
	118	serio_set_drvdata(serio, nkbd);
	119
	120	err = serio_open(serio, drv);
3c42f0c3 DT	121	if (err)
3c42f0c3 DT	122	goto fail;
1da177e4	123
3c42f0c3	124	input_register_device(nkbd->dev);
1da177e4	125	return 0;
3c42f0c3 DT	126
	127	fail: serio_set_drvdata(serio, NULL);
	128	input_free_device(input_dev);
	129	kfree(nkbd);
	130	return err;
1da177e4 LT	131	}
	132
	133	static void nkbd_disconnect(struct serio *serio)
	134	{
	135	struct nkbd *nkbd = serio_get_drvdata(serio);
	136
1da177e4 LT	137	serio_close(serio);
1da177e4 LT	138	serio_set_drvdata(serio, NULL);
3c42f0c3	139	input_unregister_device(nkbd->dev);
1da177e4 LT	140	kfree(nkbd);
	141	}
	142
	143	static struct serio_device_id nkbd_serio_ids[] = {
	144	{
	145	.type = SERIO_RS232,
	146	.proto = SERIO_NEWTON,
	147	.id = SERIO_ANY,
	148	.extra = SERIO_ANY,
	149	},
	150	{ 0 }
	151	};
	152
	153	MODULE_DEVICE_TABLE(serio, nkbd_serio_ids);
	154
	155	static struct serio_driver nkbd_drv = {
	156	.driver = {
	157	.name = "newtonkbd",
	158	},
	159	.description = DRIVER_DESC,
	160	.id_table = nkbd_serio_ids,
	161	.interrupt = nkbd_interrupt,
	162	.connect = nkbd_connect,
	163	.disconnect = nkbd_disconnect,
	164	};
	165
	166	static int __init nkbd_init(void)
	167	{
	168	serio_register_driver(&nkbd_drv);
	169	return 0;
	170	}
	171
	172	static void __exit nkbd_exit(void)
	173	{
	174	serio_unregister_driver(&nkbd_drv);
	175	}
	176
	177	module_init(nkbd_init);
	178	module_exit(nkbd_exit);