[linux-2.6-block.git] / drivers / input / keyboard / stowaway.c

/*
 * Stowaway keyboard driver for Linux
 */

/*
 *  Copyright (c) 2006 Marek Vasut
 *
 *  Based on Newton keyboard driver for Linux
 *  by Justin Cormack
 */

/*
 * 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 <marek.vasut@gmail.com>, or by paper mail:
 * Marek Vasut, Liskovecka 559, Frydek-Mistek, 738 01 Czech Republic
 */

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

#define DRIVER_DESC	"Stowaway keyboard driver"

MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");

#define SKBD_KEY_MASK	0x7f
#define SKBD_RELEASE	0x80

static unsigned char skbd_keycode[128] = {
	KEY_1, KEY_2, KEY_3, KEY_Z, KEY_4, KEY_5, KEY_6, KEY_7,
	0, KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T, KEY_Y, KEY_GRAVE,
	KEY_X, KEY_A, KEY_S, KEY_D, KEY_F, KEY_G, KEY_H, KEY_SPACE,
	KEY_CAPSLOCK, KEY_TAB, KEY_LEFTCTRL, 0, 0, 0, 0, 0,
	0, 0, 0, KEY_LEFTALT, 0, 0, 0, 0,
	0, 0, 0, 0, KEY_C, KEY_V, KEY_B, KEY_N,
	KEY_MINUS, KEY_EQUAL, KEY_BACKSPACE, KEY_HOME, KEY_8, KEY_9, KEY_0, KEY_ESC,
	KEY_LEFTBRACE, KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_END, KEY_U, KEY_I, KEY_O, KEY_P,
	KEY_APOSTROPHE, KEY_ENTER, KEY_PAGEUP,0, KEY_J, KEY_K, KEY_L, KEY_SEMICOLON,
	KEY_SLASH, KEY_UP, KEY_PAGEDOWN, 0,KEY_M, KEY_COMMA, KEY_DOT, KEY_INSERT,
	KEY_DELETE, KEY_LEFT, KEY_DOWN, KEY_RIGHT,  0, 0, 0,
	KEY_LEFTSHIFT, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0,
	0, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7,
	KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, 0, 0, 0
};

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

static irqreturn_t skbd_interrupt(struct serio *serio, unsigned char data,
				  unsigned int flags)
{
	struct skbd *skbd = serio_get_drvdata(serio);
	struct input_dev *dev = skbd->dev;

	if (skbd->keycode[data & SKBD_KEY_MASK]) {
		input_report_key(dev, skbd->keycode[data & SKBD_KEY_MASK],
				 !(data & SKBD_RELEASE));
		input_sync(dev);
	}

	return IRQ_HANDLED;
}

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

	skbd = kzalloc(sizeof(struct skbd), GFP_KERNEL);
	input_dev = input_allocate_device();
	if (!skbd || !input_dev)
		goto fail1;

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

	input_dev->name = "Stowaway Keyboard";
	input_dev->phys = skbd->phys;
	input_dev->id.bustype = BUS_RS232;
	input_dev->id.vendor = SERIO_STOWAWAY;
	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 = skbd->keycode;
	input_dev->keycodesize = sizeof(unsigned char);
	input_dev->keycodemax = ARRAY_SIZE(skbd_keycode);
	for (i = 0; i < ARRAY_SIZE(skbd_keycode); i++)
		set_bit(skbd_keycode[i], input_dev->keybit);
	clear_bit(0, input_dev->keybit);

	serio_set_drvdata(serio, skbd);

	err = serio_open(serio, drv);
	if (err)
		goto fail2;

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

	return 0;

 fail3: serio_close(serio);
 fail2:	serio_set_drvdata(serio, NULL);
 fail1:	input_free_device(input_dev);
	kfree(skbd);
	return err;
}

static void skbd_disconnect(struct serio *serio)
{
	struct skbd *skbd = serio_get_drvdata(serio);

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

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

MODULE_DEVICE_TABLE(serio, skbd_serio_ids);

static struct serio_driver skbd_drv = {
	.driver		= {
		.name	= "stowaway",
	},
	.description	= DRIVER_DESC,
	.id_table	= skbd_serio_ids,
	.interrupt	= skbd_interrupt,
	.connect	= skbd_connect,
	.disconnect	= skbd_disconnect,
};

module_serio_driver(skbd_drv);
Commit	Line	Data
f35d0616 MV	1	/*
	2	* Stowaway keyboard driver for Linux
	3	*/
	4
	5	/*
	6	* Copyright (c) 2006 Marek Vasut
	7	*
	8	* Based on Newton keyboard driver for Linux
	9	* by Justin Cormack
	10	*/
	11
	12	/*
	13	* This program is free software; you can redistribute it and/or modify
	14	* it under the terms of the GNU General Public License as published by
	15	* the Free Software Foundation; either version 2 of the License, or
	16	* (at your option) any later version.
	17	*
	18	* This program is distributed in the hope that it will be useful,
	19	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	20	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	21	* GNU General Public License for more details.
	22	*
	23	* You should have received a copy of the GNU General Public License
	24	* along with this program; if not, write to the Free Software
	25	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	26	*
	27	* Should you need to contact me, the author, you can do so either by
	28	* e-mail - mail your message to <marek.vasut@gmail.com>, or by paper mail:
	29	* Marek Vasut, Liskovecka 559, Frydek-Mistek, 738 01 Czech Republic
	30	*/
	31
	32	#include <linux/slab.h>
	33	#include <linux/module.h>
	34	#include <linux/input.h>
f35d0616 MV	35	#include <linux/serio.h>
	36
	37	#define DRIVER_DESC "Stowaway keyboard driver"
	38
	39	MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
	40	MODULE_DESCRIPTION(DRIVER_DESC);
	41	MODULE_LICENSE("GPL");
	42
	43	#define SKBD_KEY_MASK 0x7f
	44	#define SKBD_RELEASE 0x80
	45
	46	static unsigned char skbd_keycode[128] = {
	47	KEY_1, KEY_2, KEY_3, KEY_Z, KEY_4, KEY_5, KEY_6, KEY_7,
	48	0, KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T, KEY_Y, KEY_GRAVE,
	49	KEY_X, KEY_A, KEY_S, KEY_D, KEY_F, KEY_G, KEY_H, KEY_SPACE,
	50	KEY_CAPSLOCK, KEY_TAB, KEY_LEFTCTRL, 0, 0, 0, 0, 0,
	51	0, 0, 0, KEY_LEFTALT, 0, 0, 0, 0,
	52	0, 0, 0, 0, KEY_C, KEY_V, KEY_B, KEY_N,
	53	KEY_MINUS, KEY_EQUAL, KEY_BACKSPACE, KEY_HOME, KEY_8, KEY_9, KEY_0, KEY_ESC,
	54	KEY_LEFTBRACE, KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_END, KEY_U, KEY_I, KEY_O, KEY_P,
	55	KEY_APOSTROPHE, KEY_ENTER, KEY_PAGEUP,0, KEY_J, KEY_K, KEY_L, KEY_SEMICOLON,
	56	KEY_SLASH, KEY_UP, KEY_PAGEDOWN, 0,KEY_M, KEY_COMMA, KEY_DOT, KEY_INSERT,
	57	KEY_DELETE, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0,
	58	KEY_LEFTSHIFT, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0,
	59	0, 0, 0, 0, 0, 0, 0, 0,
	60	0, 0, 0, 0, 0, 0, 0, 0,
	61	0, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7,
	62	KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, 0, 0, 0
	63	};
	64
	65	struct skbd {
	66	unsigned char keycode[128];
	67	struct input_dev *dev;
	68	struct serio *serio;
	69	char phys[32];
	70	};
	71
	72	static irqreturn_t skbd_interrupt(struct serio *serio, unsigned char data,
7d12e780	73	unsigned int flags)
f35d0616 MV	74	{
	75	struct skbd *skbd = serio_get_drvdata(serio);
	76	struct input_dev *dev = skbd->dev;
	77
	78	if (skbd->keycode[data & SKBD_KEY_MASK]) {
f35d0616 MV	79	input_report_key(dev, skbd->keycode[data & SKBD_KEY_MASK],
	80	!(data & SKBD_RELEASE));
	81	input_sync(dev);
	82	}
	83
	84	return IRQ_HANDLED;
	85	}
	86
	87	static int skbd_connect(struct serio serio, struct serio_driver drv)
	88	{
	89	struct skbd *skbd;
	90	struct input_dev *input_dev;
	91	int err = -ENOMEM;
	92	int i;
	93
	94	skbd = kzalloc(sizeof(struct skbd), GFP_KERNEL);
	95	input_dev = input_allocate_device();
	96	if (!skbd \|\| !input_dev)
	97	goto fail1;
	98
	99	skbd->serio = serio;
	100	skbd->dev = input_dev;
	101	snprintf(skbd->phys, sizeof(skbd->phys), "%s/input0", serio->phys);
	102	memcpy(skbd->keycode, skbd_keycode, sizeof(skbd->keycode));
	103
	104	input_dev->name = "Stowaway Keyboard";
	105	input_dev->phys = skbd->phys;
	106	input_dev->id.bustype = BUS_RS232;
	107	input_dev->id.vendor = SERIO_STOWAWAY;
	108	input_dev->id.product = 0x0001;
	109	input_dev->id.version = 0x0100;
469ba4df	110	input_dev->dev.parent = &serio->dev;
f35d0616	111
7b19ada2	112	input_dev->evbit[0] = BIT_MASK(EV_KEY) \| BIT_MASK(EV_REP);
f35d0616 MV	113	input_dev->keycode = skbd->keycode;
	114	input_dev->keycodesize = sizeof(unsigned char);
	115	input_dev->keycodemax = ARRAY_SIZE(skbd_keycode);
	116	for (i = 0; i < ARRAY_SIZE(skbd_keycode); i++)
	117	set_bit(skbd_keycode[i], input_dev->keybit);
	118	clear_bit(0, input_dev->keybit);
	119
	120	serio_set_drvdata(serio, skbd);
	121
	122	err = serio_open(serio, drv);
	123	if (err)
	124	goto fail2;
	125
	126	err = input_register_device(skbd->dev);
	127	if (err)
	128	goto fail3;
	129
	130	return 0;
	131
	132	fail3: serio_close(serio);
	133	fail2: serio_set_drvdata(serio, NULL);
	134	fail1: input_free_device(input_dev);
	135	kfree(skbd);
	136	return err;
	137	}
	138
	139	static void skbd_disconnect(struct serio *serio)
	140	{
	141	struct skbd *skbd = serio_get_drvdata(serio);
	142
	143	serio_close(serio);
	144	serio_set_drvdata(serio, NULL);
	145	input_unregister_device(skbd->dev);
	146	kfree(skbd);
	147	}
	148
	149	static struct serio_device_id skbd_serio_ids[] = {
	150	{
	151	.type = SERIO_RS232,
	152	.proto = SERIO_STOWAWAY,
	153	.id = SERIO_ANY,
	154	.extra = SERIO_ANY,
	155	},
	156	{ 0 }
	157	};
	158
	159	MODULE_DEVICE_TABLE(serio, skbd_serio_ids);
	160
	161	static struct serio_driver skbd_drv = {
	162	.driver = {
	163	.name = "stowaway",
	164	},
	165	.description = DRIVER_DESC,
	166	.id_table = skbd_serio_ids,
	167	.interrupt = skbd_interrupt,
	168	.connect = skbd_connect,
	169	.disconnect = skbd_disconnect,
	170	};
	171
65ac9f7a	172	module_serio_driver(skbd_drv);