[linux-2.6-block.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/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 fail1;

	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->dev.parent = &serio->dev;

	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(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 fail2;

	err = input_register_device(nkbd->dev);
	if (err)
		goto fail3;

	return 0;

 fail3:	serio_close(serio);
 fail2:	serio_set_drvdata(serio, NULL);
 fail1:	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,
};

module_serio_driver(nkbd_drv);
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>
1da177e4 LT	32	#include <linux/serio.h>
	33
	34	#define DRIVER_DESC "Newton keyboard driver"
	35
	36	MODULE_AUTHOR("Justin Cormack <j.cormack@doc.ic.ac.uk>");
	37	MODULE_DESCRIPTION(DRIVER_DESC);
	38	MODULE_LICENSE("GPL");
	39
	40	#define NKBD_KEY 0x7f
	41	#define NKBD_PRESS 0x80
	42
	43	static unsigned char nkbd_keycode[128] = {
	44	KEY_A, KEY_S, KEY_D, KEY_F, KEY_H, KEY_G, KEY_Z, KEY_X,
	45	KEY_C, KEY_V, 0, KEY_B, KEY_Q, KEY_W, KEY_E, KEY_R,
	46	KEY_Y, KEY_T, KEY_1, KEY_2, KEY_3, KEY_4, KEY_6, KEY_5,
	47	KEY_EQUAL, KEY_9, KEY_7, KEY_MINUS, KEY_8, KEY_0, KEY_RIGHTBRACE, KEY_O,
	48	KEY_U, KEY_LEFTBRACE, KEY_I, KEY_P, KEY_ENTER, KEY_L, KEY_J, KEY_APOSTROPHE,
	49	KEY_K, KEY_SEMICOLON, KEY_BACKSLASH, KEY_COMMA, KEY_SLASH, KEY_N, KEY_M, KEY_DOT,
	50	KEY_TAB, KEY_SPACE, KEY_GRAVE, KEY_DELETE, 0, 0, 0, KEY_LEFTMETA,
	51	KEY_LEFTSHIFT, KEY_CAPSLOCK, KEY_LEFTALT, KEY_LEFTCTRL, KEY_RIGHTSHIFT, 0, 0, 0,
	52	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 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,
	56	KEY_LEFT, KEY_RIGHT, KEY_DOWN, KEY_UP, 0
	57	};
	58
1da177e4 LT	59	struct nkbd {
1da177e4 LT	60	unsigned char keycode[128];
3c42f0c3	61	struct input_dev *dev;
1da177e4 LT	62	struct serio *serio;
	63	char phys[32];
	64	};
	65
	66	static irqreturn_t nkbd_interrupt(struct serio *serio,
7d12e780	67	unsigned char data, unsigned int flags)
1da177e4 LT	68	{
	69	struct nkbd *nkbd = serio_get_drvdata(serio);
	70
	71	/* invalid scan codes are probably the init sequence, so we ignore them */
	72	if (nkbd->keycode[data & NKBD_KEY]) {
3c42f0c3 DT	73	input_report_key(nkbd->dev, nkbd->keycode[data & NKBD_KEY], data & NKBD_PRESS);
3c42f0c3 DT	74	input_sync(nkbd->dev);
1da177e4 LT	75	}
	76
	77	else if (data == 0xe7) /* end of init sequence */
3c42f0c3	78	printk(KERN_INFO "input: %s on %s\n", nkbd->dev->name, serio->phys);
1da177e4 LT	79	return IRQ_HANDLED;
	80
	81	}
	82
	83	static int nkbd_connect(struct serio serio, struct serio_driver drv)
	84	{
	85	struct nkbd *nkbd;
3c42f0c3 DT	86	struct input_dev *input_dev;
3c42f0c3 DT	87	int err = -ENOMEM;
1da177e4	88	int i;
1da177e4	89
3c42f0c3 DT	90	nkbd = kzalloc(sizeof(struct nkbd), GFP_KERNEL);
	91	input_dev = input_allocate_device();
	92	if (!nkbd \|\| !input_dev)
2b03b60e	93	goto fail1;
1da177e4 LT	94
1da177e4 LT	95	nkbd->serio = serio;
3c42f0c3	96	nkbd->dev = input_dev;
ea08c6fa	97	snprintf(nkbd->phys, sizeof(nkbd->phys), "%s/input0", serio->phys);
3c42f0c3	98	memcpy(nkbd->keycode, nkbd_keycode, sizeof(nkbd->keycode));
1da177e4	99
3c42f0c3 DT	100	input_dev->name = "Newton Keyboard";
	101	input_dev->phys = nkbd->phys;
	102	input_dev->id.bustype = BUS_RS232;
	103	input_dev->id.vendor = SERIO_NEWTON;
	104	input_dev->id.product = 0x0001;
	105	input_dev->id.version = 0x0100;
469ba4df	106	input_dev->dev.parent = &serio->dev;
3c42f0c3	107
7b19ada2	108	input_dev->evbit[0] = BIT_MASK(EV_KEY) \| BIT_MASK(EV_REP);
3c42f0c3 DT	109	input_dev->keycode = nkbd->keycode;
	110	input_dev->keycodesize = sizeof(unsigned char);
	111	input_dev->keycodemax = ARRAY_SIZE(nkbd_keycode);
	112	for (i = 0; i < 128; i++)
	113	set_bit(nkbd->keycode[i], input_dev->keybit);
	114	clear_bit(0, input_dev->keybit);
1da177e4 LT	115
	116	serio_set_drvdata(serio, nkbd);
	117
	118	err = serio_open(serio, drv);
3c42f0c3	119	if (err)
2b03b60e DT	120	goto fail2;
	121
	122	err = input_register_device(nkbd->dev);
	123	if (err)
	124	goto fail3;
1da177e4 LT	125
1da177e4 LT	126	return 0;
3c42f0c3	127
2b03b60e DT	128	fail3: serio_close(serio);
	129	fail2: serio_set_drvdata(serio, NULL);
	130	fail1: input_free_device(input_dev);
3c42f0c3 DT	131	kfree(nkbd);
3c42f0c3 DT	132	return err;
1da177e4 LT	133	}
	134
	135	static void nkbd_disconnect(struct serio *serio)
	136	{
	137	struct nkbd *nkbd = serio_get_drvdata(serio);
	138
1da177e4 LT	139	serio_close(serio);
1da177e4 LT	140	serio_set_drvdata(serio, NULL);
3c42f0c3	141	input_unregister_device(nkbd->dev);
1da177e4 LT	142	kfree(nkbd);
	143	}
	144
	145	static struct serio_device_id nkbd_serio_ids[] = {
	146	{
	147	.type = SERIO_RS232,
	148	.proto = SERIO_NEWTON,
	149	.id = SERIO_ANY,
	150	.extra = SERIO_ANY,
	151	},
	152	{ 0 }
	153	};
	154
	155	MODULE_DEVICE_TABLE(serio, nkbd_serio_ids);
	156
	157	static struct serio_driver nkbd_drv = {
	158	.driver = {
	159	.name = "newtonkbd",
	160	},
	161	.description = DRIVER_DESC,
	162	.id_table = nkbd_serio_ids,
	163	.interrupt = nkbd_interrupt,
	164	.connect = nkbd_connect,
	165	.disconnect = nkbd_disconnect,
	166	};
	167
65ac9f7a	168	module_serio_driver(nkbd_drv);