[linux-2.6-block.git] / drivers / input / joystick / warrior.c

/*
 *  Copyright (c) 1999-2001 Vojtech Pavlik
 */

/*
 * Logitech WingMan Warrior joystick driver for Linux
 */

/*
 * This program is free warftware; 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 <vojtech@ucw.cz>, or by paper mail:
 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
 */

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

#define DRIVER_DESC	"Logitech WingMan Warrior joystick driver"

MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");

/*
 * Constants.
 */

#define WARRIOR_MAX_LENGTH	16
static char warrior_lengths[] = { 0, 4, 12, 3, 4, 4, 0, 0 };

/*
 * Per-Warrior data.
 */

struct warrior {
	struct input_dev *dev;
	int idx, len;
	unsigned char data[WARRIOR_MAX_LENGTH];
	char phys[32];
};

/*
 * warrior_process_packet() decodes packets the driver receives from the
 * Warrior. It updates the data accordingly.
 */

static void warrior_process_packet(struct warrior *warrior)
{
	struct input_dev *dev = warrior->dev;
	unsigned char *data = warrior->data;

	if (!warrior->idx) return;

	switch ((data[0] >> 4) & 7) {
		case 1:					/* Button data */
			input_report_key(dev, BTN_TRIGGER,  data[3]       & 1);
			input_report_key(dev, BTN_THUMB,   (data[3] >> 1) & 1);
			input_report_key(dev, BTN_TOP,     (data[3] >> 2) & 1);
			input_report_key(dev, BTN_TOP2,    (data[3] >> 3) & 1);
			break;
		case 3:					/* XY-axis info->data */
			input_report_abs(dev, ABS_X, ((data[0] & 8) << 5) - (data[2] | ((data[0] & 4) << 5)));
			input_report_abs(dev, ABS_Y, (data[1] | ((data[0] & 1) << 7)) - ((data[0] & 2) << 7));
			break;
		case 5:					/* Throttle, spinner, hat info->data */
			input_report_abs(dev, ABS_THROTTLE, (data[1] | ((data[0] & 1) << 7)) - ((data[0] & 2) << 7));
			input_report_abs(dev, ABS_HAT0X, (data[3] & 2 ? 1 : 0) - (data[3] & 1 ? 1 : 0));
			input_report_abs(dev, ABS_HAT0Y, (data[3] & 8 ? 1 : 0) - (data[3] & 4 ? 1 : 0));
			input_report_rel(dev, REL_DIAL,  (data[2] | ((data[0] & 4) << 5)) - ((data[0] & 8) << 5));
			break;
	}
	input_sync(dev);
}

/*
 * warrior_interrupt() is called by the low level driver when characters
 * are ready for us. We then buffer them for further processing, or call the
 * packet processing routine.
 */

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

	if (data & 0x80) {
		if (warrior->idx) warrior_process_packet(warrior);
		warrior->idx = 0;
		warrior->len = warrior_lengths[(data >> 4) & 7];
	}

	if (warrior->idx < warrior->len)
		warrior->data[warrior->idx++] = data;

	if (warrior->idx == warrior->len) {
		if (warrior->idx) warrior_process_packet(warrior);
		warrior->idx = 0;
		warrior->len = 0;
	}
	return IRQ_HANDLED;
}

/*
 * warrior_disconnect() is the opposite of warrior_connect()
 */

static void warrior_disconnect(struct serio *serio)
{
	struct warrior *warrior = serio_get_drvdata(serio);

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

/*
 * warrior_connect() is the routine that is called when someone adds a
 * new serio device. It looks for the Warrior, and if found, registers
 * it as an input device.
 */

static int warrior_connect(struct serio *serio, struct serio_driver *drv)
{
	struct warrior *warrior;
	struct input_dev *input_dev;
	int err = -ENOMEM;

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

	warrior->dev = input_dev;
	snprintf(warrior->phys, sizeof(warrior->phys), "%s/input0", serio->phys);

	input_dev->name = "Logitech WingMan Warrior";
	input_dev->phys = warrior->phys;
	input_dev->id.bustype = BUS_RS232;
	input_dev->id.vendor = SERIO_WARRIOR;
	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_REL) |
		BIT_MASK(EV_ABS);
	input_dev->keybit[BIT_WORD(BTN_TRIGGER)] = BIT_MASK(BTN_TRIGGER) |
		BIT_MASK(BTN_THUMB) | BIT_MASK(BTN_TOP) | BIT_MASK(BTN_TOP2);
	input_dev->relbit[0] = BIT_MASK(REL_DIAL);
	input_set_abs_params(input_dev, ABS_X, -64, 64, 0, 8);
	input_set_abs_params(input_dev, ABS_Y, -64, 64, 0, 8);
	input_set_abs_params(input_dev, ABS_THROTTLE, -112, 112, 0, 0);
	input_set_abs_params(input_dev, ABS_HAT0X, -1, 1, 0, 0);
	input_set_abs_params(input_dev, ABS_HAT0Y, -1, 1, 0, 0);

	serio_set_drvdata(serio, warrior);

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

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

	return 0;

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

/*
 * The serio driver structure.
 */

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

MODULE_DEVICE_TABLE(serio, warrior_serio_ids);

static struct serio_driver warrior_drv = {
	.driver		= {
		.name	= "warrior",
	},
	.description	= DRIVER_DESC,
	.id_table	= warrior_serio_ids,
	.interrupt	= warrior_interrupt,
	.connect	= warrior_connect,
	.disconnect	= warrior_disconnect,
};

/*
 * The functions for inserting/removing us as a module.
 */

static int __init warrior_init(void)
{
	return serio_register_driver(&warrior_drv);
}

static void __exit warrior_exit(void)
{
	serio_unregister_driver(&warrior_drv);
}

module_init(warrior_init);
module_exit(warrior_exit);
Commit	Line	Data
1da177e4	1	/*
1da177e4 LT	2	* Copyright (c) 1999-2001 Vojtech Pavlik
	3	*/
	4
	5	/*
	6	* Logitech WingMan Warrior joystick driver for Linux
	7	*/
	8
	9	/*
	10	* This program is free warftware; 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 <vojtech@ucw.cz>, or by paper mail:
	26	* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
	27	*/
	28
	29	#include <linux/kernel.h>
	30	#include <linux/module.h>
	31	#include <linux/slab.h>
	32	#include <linux/input.h>
	33	#include <linux/serio.h>
	34	#include <linux/init.h>
	35
	36	#define DRIVER_DESC "Logitech WingMan Warrior joystick driver"
	37
	38	MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
	39	MODULE_DESCRIPTION(DRIVER_DESC);
	40	MODULE_LICENSE("GPL");
	41
	42	/*
	43	* Constants.
	44	*/
	45
	46	#define WARRIOR_MAX_LENGTH 16
	47	static char warrior_lengths[] = { 0, 4, 12, 3, 4, 4, 0, 0 };
1da177e4 LT	48
	49	/*
	50	* Per-Warrior data.
	51	*/
	52
	53	struct warrior {
17dd3f0f	54	struct input_dev *dev;
1da177e4 LT	55	int idx, len;
	56	unsigned char data[WARRIOR_MAX_LENGTH];
	57	char phys[32];
	58	};
	59
	60	/*
	61	* warrior_process_packet() decodes packets the driver receives from the
	62	* Warrior. It updates the data accordingly.
	63	*/
	64
7d12e780	65	static void warrior_process_packet(struct warrior *warrior)
1da177e4	66	{
17dd3f0f	67	struct input_dev *dev = warrior->dev;
1da177e4 LT	68	unsigned char *data = warrior->data;
	69
	70	if (!warrior->idx) return;
	71
1da177e4 LT	72	switch ((data[0] >> 4) & 7) {
	73	case 1: /* Button data */
	74	input_report_key(dev, BTN_TRIGGER, data[3] & 1);
	75	input_report_key(dev, BTN_THUMB, (data[3] >> 1) & 1);
	76	input_report_key(dev, BTN_TOP, (data[3] >> 2) & 1);
	77	input_report_key(dev, BTN_TOP2, (data[3] >> 3) & 1);
	78	break;
	79	case 3: /* XY-axis info->data */
	80	input_report_abs(dev, ABS_X, ((data[0] & 8) << 5) - (data[2] \| ((data[0] & 4) << 5)));
	81	input_report_abs(dev, ABS_Y, (data[1] \| ((data[0] & 1) << 7)) - ((data[0] & 2) << 7));
	82	break;
	83	case 5: /* Throttle, spinner, hat info->data */
	84	input_report_abs(dev, ABS_THROTTLE, (data[1] \| ((data[0] & 1) << 7)) - ((data[0] & 2) << 7));
	85	input_report_abs(dev, ABS_HAT0X, (data[3] & 2 ? 1 : 0) - (data[3] & 1 ? 1 : 0));
	86	input_report_abs(dev, ABS_HAT0Y, (data[3] & 8 ? 1 : 0) - (data[3] & 4 ? 1 : 0));
	87	input_report_rel(dev, REL_DIAL, (data[2] \| ((data[0] & 4) << 5)) - ((data[0] & 8) << 5));
	88	break;
	89	}
	90	input_sync(dev);
	91	}
	92
	93	/*
	94	* warrior_interrupt() is called by the low level driver when characters
	95	* are ready for us. We then buffer them for further processing, or call the
	96	* packet processing routine.
	97	*/
	98
	99	static irqreturn_t warrior_interrupt(struct serio *serio,
7d12e780	100	unsigned char data, unsigned int flags)
1da177e4 LT	101	{
	102	struct warrior *warrior = serio_get_drvdata(serio);
	103
	104	if (data & 0x80) {
7d12e780	105	if (warrior->idx) warrior_process_packet(warrior);
1da177e4 LT	106	warrior->idx = 0;
	107	warrior->len = warrior_lengths[(data >> 4) & 7];
	108	}
	109
	110	if (warrior->idx < warrior->len)
	111	warrior->data[warrior->idx++] = data;
	112
	113	if (warrior->idx == warrior->len) {
7d12e780	114	if (warrior->idx) warrior_process_packet(warrior);
1da177e4 LT	115	warrior->idx = 0;
	116	warrior->len = 0;
	117	}
	118	return IRQ_HANDLED;
	119	}
	120
	121	/*
	122	* warrior_disconnect() is the opposite of warrior_connect()
	123	*/
	124
	125	static void warrior_disconnect(struct serio *serio)
	126	{
	127	struct warrior *warrior = serio_get_drvdata(serio);
	128
1da177e4 LT	129	serio_close(serio);
1da177e4 LT	130	serio_set_drvdata(serio, NULL);
17dd3f0f	131	input_unregister_device(warrior->dev);
1da177e4 LT	132	kfree(warrior);
	133	}
	134
	135	/*
	136	* warrior_connect() is the routine that is called when someone adds a
	137	* new serio device. It looks for the Warrior, and if found, registers
	138	* it as an input device.
	139	*/
	140
	141	static int warrior_connect(struct serio serio, struct serio_driver drv)
	142	{
	143	struct warrior *warrior;
17dd3f0f DT	144	struct input_dev *input_dev;
17dd3f0f DT	145	int err = -ENOMEM;
1da177e4	146
17dd3f0f DT	147	warrior = kzalloc(sizeof(struct warrior), GFP_KERNEL);
	148	input_dev = input_allocate_device();
	149	if (!warrior \|\| !input_dev)
127278ce	150	goto fail1;
1da177e4	151
17dd3f0f	152	warrior->dev = input_dev;
10ca4c0a	153	snprintf(warrior->phys, sizeof(warrior->phys), "%s/input0", serio->phys);
1da177e4	154
17dd3f0f DT	155	input_dev->name = "Logitech WingMan Warrior";
	156	input_dev->phys = warrior->phys;
	157	input_dev->id.bustype = BUS_RS232;
	158	input_dev->id.vendor = SERIO_WARRIOR;
	159	input_dev->id.product = 0x0001;
	160	input_dev->id.version = 0x0100;
935e658e	161	input_dev->dev.parent = &serio->dev;
17dd3f0f	162
7b19ada2 JS	163	input_dev->evbit[0] = BIT_MASK(EV_KEY) \| BIT_MASK(EV_REL) \|
	164	BIT_MASK(EV_ABS);
	165	input_dev->keybit[BIT_WORD(BTN_TRIGGER)] = BIT_MASK(BTN_TRIGGER) \|
	166	BIT_MASK(BTN_THUMB) \| BIT_MASK(BTN_TOP) \| BIT_MASK(BTN_TOP2);
	167	input_dev->relbit[0] = BIT_MASK(REL_DIAL);
17dd3f0f DT	168	input_set_abs_params(input_dev, ABS_X, -64, 64, 0, 8);
	169	input_set_abs_params(input_dev, ABS_Y, -64, 64, 0, 8);
	170	input_set_abs_params(input_dev, ABS_THROTTLE, -112, 112, 0, 0);
	171	input_set_abs_params(input_dev, ABS_HAT0X, -1, 1, 0, 0);
ae5536d6	172	input_set_abs_params(input_dev, ABS_HAT0Y, -1, 1, 0, 0);
1da177e4 LT	173
	174	serio_set_drvdata(serio, warrior);
	175
	176	err = serio_open(serio, drv);
17dd3f0f	177	if (err)
127278ce DT	178	goto fail2;
	179
	180	err = input_register_device(warrior->dev);
	181	if (err)
	182	goto fail3;
1da177e4 LT	183
1da177e4 LT	184	return 0;
17dd3f0f	185
127278ce DT	186	fail3: serio_close(serio);
	187	fail2: serio_set_drvdata(serio, NULL);
	188	fail1: input_free_device(input_dev);
17dd3f0f DT	189	kfree(warrior);
17dd3f0f DT	190	return err;
1da177e4 LT	191	}
	192
	193	/*
	194	* The serio driver structure.
	195	*/
	196
	197	static struct serio_device_id warrior_serio_ids[] = {
	198	{
	199	.type = SERIO_RS232,
	200	.proto = SERIO_WARRIOR,
	201	.id = SERIO_ANY,
	202	.extra = SERIO_ANY,
	203	},
	204	{ 0 }
	205	};
	206
	207	MODULE_DEVICE_TABLE(serio, warrior_serio_ids);
	208
	209	static struct serio_driver warrior_drv = {
	210	.driver = {
	211	.name = "warrior",
	212	},
	213	.description = DRIVER_DESC,
	214	.id_table = warrior_serio_ids,
	215	.interrupt = warrior_interrupt,
	216	.connect = warrior_connect,
	217	.disconnect = warrior_disconnect,
	218	};
	219
	220	/*
	221	* The functions for inserting/removing us as a module.
	222	*/
	223
	224	static int __init warrior_init(void)
	225	{
153a9df0	226	return serio_register_driver(&warrior_drv);
1da177e4 LT	227	}
	228
	229	static void __exit warrior_exit(void)
	230	{
	231	serio_unregister_driver(&warrior_drv);
	232	}
	233
	234	module_init(warrior_init);
	235	module_exit(warrior_exit);