drivers/input/joystick/tmdc.c - pub/scm/linux/kernel/git/stable/linux-stable - Git at Google

 /*
  * $Id: tmdc.c,v 1.31 2002/01/22 20:29:52 vojtech Exp $
  *
  *  Copyright (c) 1998-2001 Vojtech Pavlik
  *
  *   Based on the work of:
  *	Trystan Larey-Williams
  */

 /*
  * ThrustMaster DirectConnect (BSP) joystick family 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 <vojtech@ucw.cz>, or by paper mail:
  * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
  */

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

 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
 MODULE_DESCRIPTION("ThrustMaster DirectConnect joystick driver");
 MODULE_LICENSE("GPL");

 #define TMDC_MAX_START		400	/* 400 us */
 #define TMDC_MAX_STROBE		45	/* 45 us */
 #define TMDC_MAX_LENGTH		13
 #define TMDC_REFRESH_TIME	HZ/50	/* 20 ms */

 #define TMDC_MODE_M3DI		1
 #define TMDC_MODE_3DRP		3
 #define TMDC_MODE_AT		4
 #define TMDC_MODE_FM		8
 #define TMDC_MODE_FGP		163

 #define TMDC_BYTE_ID		10
 #define TMDC_BYTE_REV		11
 #define TMDC_BYTE_DEF		12

 #define TMDC_ABS		7
 #define TMDC_ABS_HAT		4
 #define TMDC_BTN		16

 static unsigned char tmdc_byte_a[16] = { 0, 1, 3, 4, 6, 7 };
 static unsigned char tmdc_byte_d[16] = { 2, 5, 8, 9 };

 static signed char tmdc_abs[TMDC_ABS] =
 	{ ABS_X, ABS_Y, ABS_RUDDER, ABS_THROTTLE, ABS_RX, ABS_RY, ABS_RZ };
 static signed char tmdc_abs_hat[TMDC_ABS_HAT] =
 	{ ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
 static signed char tmdc_abs_at[TMDC_ABS] =
 	{ ABS_X, ABS_Y, ABS_RUDDER, -1, ABS_THROTTLE };
 static signed char tmdc_abs_fm[TMDC_ABS] =
 	{ ABS_RX, ABS_RY, ABS_X, ABS_Y };

 static short tmdc_btn_pad[TMDC_BTN] =
 	{ BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_START, BTN_SELECT, BTN_TL, BTN_TR };
 static short tmdc_btn_joy[TMDC_BTN] =
 	{ BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_THUMB2, BTN_PINKIE,
  	  BTN_BASE3, BTN_BASE4, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z };
 static short tmdc_btn_fm[TMDC_BTN] =
         { BTN_TRIGGER, BTN_C, BTN_B, BTN_A, BTN_THUMB, BTN_X, BTN_Y, BTN_Z, BTN_TOP, BTN_TOP2 };
 static short tmdc_btn_at[TMDC_BTN] =
         { BTN_TRIGGER, BTN_THUMB2, BTN_PINKIE, BTN_THUMB, BTN_BASE6, BTN_BASE5, BTN_BASE4,
           BTN_BASE3, BTN_BASE2, BTN_BASE };

 static struct {
         int x;
         int y;
 } tmdc_hat_to_axis[] = {{ 0, 0}, { 1, 0}, { 0,-1}, {-1, 0}, { 0, 1}};

 struct tmdc {
 	struct gameport *gameport;
 	struct timer_list timer;
 	struct input_dev dev[2];
 	char name[2][64];
 	char phys[2][32];
 	int mode[2];
 	signed char *abs[2];
 	short *btn[2];
 	unsigned char absc[2];
 	unsigned char btnc[2][4];
 	unsigned char btno[2][4];
 	int used;
 	int reads;
 	int bads;
 	unsigned char exists;
 };

 /*
  * tmdc_read_packet() reads a ThrustMaster packet.
  */

 static int tmdc_read_packet(struct gameport *gameport, unsigned char data[2][TMDC_MAX_LENGTH])
 {
 	unsigned char u, v, w, x;
 	unsigned long flags;
 	int i[2], j[2], t[2], p, k;

 	p = gameport_time(gameport, TMDC_MAX_STROBE);

 	for (k = 0; k < 2; k++) {
 		t[k] = gameport_time(gameport, TMDC_MAX_START);
 		i[k] = j[k] = 0;
 	}

 	local_irq_save(flags);
 	gameport_trigger(gameport);

 	w = gameport_read(gameport) >> 4;

 	do {
 		x = w;
 		w = gameport_read(gameport) >> 4;

 		for (k = 0, v = w, u = x; k < 2; k++, v >>= 2, u >>= 2) {
 			if (~v & u & 2) {
 				if (t[k] <= 0 || i[k] >= TMDC_MAX_LENGTH) continue;
 				t[k] = p;
 				if (j[k] == 0) {				 /* Start bit */
 					if (~v & 1) t[k] = 0;
 					data[k][i[k]] = 0; j[k]++; continue;
 				}
 				if (j[k] == 9) {				/* Stop bit */
 					if (v & 1) t[k] = 0;
 					j[k] = 0; i[k]++; continue;
 				}
 				data[k][i[k]] |= (~v & 1) << (j[k]++ - 1);	/* Data bit */
 			}
 			t[k]--;
 		}
 	} while (t[0] > 0 || t[1] > 0);

 	local_irq_restore(flags);

 	return (i[0] == TMDC_MAX_LENGTH) | ((i[1] == TMDC_MAX_LENGTH) << 1);
 }

 /*
  * tmdc_read() reads and analyzes ThrustMaster joystick data.
  */

 static void tmdc_timer(unsigned long private)
 {
 	unsigned char data[2][TMDC_MAX_LENGTH];
 	struct tmdc *tmdc = (void *) private;
 	struct input_dev *dev;
 	unsigned char r, bad = 0;
 	int i, j, k, l;

 	tmdc->reads++;

 	if ((r = tmdc_read_packet(tmdc->gameport, data)) != tmdc->exists)
 		bad = 1;
 	else

 	for (j = 0; j < 2; j++)
 		if (r & (1 << j) & tmdc->exists) {

 			if (data[j][TMDC_BYTE_ID] != tmdc->mode[j]) {
 				bad = 1;
 				continue;
 			}

 			dev = tmdc->dev + j;

 			for (i = 0; i < tmdc->absc[j]; i++) {
 				if (tmdc->abs[j][i] < 0) continue;
 				input_report_abs(dev, tmdc->abs[j][i], data[j][tmdc_byte_a[i]]);
 			}

 			switch (tmdc->mode[j]) {

 				case TMDC_MODE_M3DI:

 					i = tmdc_byte_d[0];
 					input_report_abs(dev, ABS_HAT0X, ((data[j][i] >> 3) & 1) - ((data[j][i] >> 1) & 1));
 					input_report_abs(dev, ABS_HAT0Y, ((data[j][i] >> 2) & 1) - ( data[j][i]       & 1));
 					break;

 				case TMDC_MODE_AT:

 					i = tmdc_byte_a[3];
 					input_report_abs(dev, ABS_HAT0X, tmdc_hat_to_axis[(data[j][i] - 141) / 25].x);
 					input_report_abs(dev, ABS_HAT0Y, tmdc_hat_to_axis[(data[j][i] - 141) / 25].y);
 					break;

 			}

 			for (k = l = 0; k < 4; k++) {
 				for (i = 0; i < tmdc->btnc[j][k]; i++)
 					input_report_key(dev, tmdc->btn[j][i + l],
 						((data[j][tmdc_byte_d[k]] >> (i + tmdc->btno[j][k])) & 1));
 				l += tmdc->btnc[j][k];
 			}

 			input_sync(dev);
 	}

 	tmdc->bads += bad;

 	mod_timer(&tmdc->timer, jiffies + TMDC_REFRESH_TIME);
 }

 static int tmdc_open(struct input_dev *dev)
 {
 	struct tmdc *tmdc = dev->private;
 	if (!tmdc->used++)
 		mod_timer(&tmdc->timer, jiffies + TMDC_REFRESH_TIME);
 	return 0;
 }

 static void tmdc_close(struct input_dev *dev)
 {
 	struct tmdc *tmdc = dev->private;
 	if (!--tmdc->used)
 		del_timer(&tmdc->timer);
 }

 /*
  * tmdc_probe() probes for ThrustMaster type joysticks.
  */

 static void tmdc_connect(struct gameport *gameport, struct gameport_dev *dev)
 {
 	struct models {
 		unsigned char id;
 		char *name;
 		char abs;
 		char hats;
 		char btnc[4];
 		char btno[4];
 		signed char *axes;
 		short *buttons;
 	} models[] = {	{   1, "ThrustMaster Millenium 3D Inceptor",	  6, 2, { 4, 2 }, { 4, 6 }, tmdc_abs, tmdc_btn_joy },
 			{   3, "ThrustMaster Rage 3D Gamepad",		  2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad },
 			{   4, "ThrustMaster Attack Throttle",		  5, 2, { 4, 6 }, { 4, 2 }, tmdc_abs_at, tmdc_btn_at },
 			{   8, "ThrustMaster FragMaster",		  4, 0, { 8, 2 }, { 0, 0 }, tmdc_abs_fm, tmdc_btn_fm },
 			{ 163, "Thrustmaster Fusion GamePad",		  2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad },
 			{   0, "Unknown %d-axis, %d-button TM device %d", 0, 0, { 0, 0 }, { 0, 0 }, tmdc_abs, tmdc_btn_joy }};

 	unsigned char data[2][TMDC_MAX_LENGTH];
 	struct tmdc *tmdc;
 	int i, j, k, l, m;

 	if (!(tmdc = kmalloc(sizeof(struct tmdc), GFP_KERNEL)))
 		return;
 	memset(tmdc, 0, sizeof(struct tmdc));

 	gameport->private = tmdc;

 	tmdc->gameport = gameport;
 	init_timer(&tmdc->timer);
 	tmdc->timer.data = (long) tmdc;
 	tmdc->timer.function = tmdc_timer;

 	if (gameport_open(gameport, dev, GAMEPORT_MODE_RAW))
 		goto fail1;

 	if (!(tmdc->exists = tmdc_read_packet(gameport, data)))
 		goto fail2;

 	for (j = 0; j < 2; j++)
 		if (tmdc->exists & (1 << j)) {

 			tmdc->mode[j] = data[j][TMDC_BYTE_ID];

 			for (m = 0; models[m].id && models[m].id != tmdc->mode[j]; m++);

 			tmdc->abs[j] = models[m].axes;
 			tmdc->btn[j] = models[m].buttons;

 			if (!models[m].id) {
 				models[m].abs = data[j][TMDC_BYTE_DEF] >> 4;
 				for (k = 0; k < 4; k++)
 					models[m].btnc[k] = k < (data[j][TMDC_BYTE_DEF] & 0xf) ? 8 : 0;
 			}

 			tmdc->absc[j] = models[m].abs;
 			for (k = 0; k < 4; k++) {
 				tmdc->btnc[j][k] = models[m].btnc[k];
 				tmdc->btno[j][k] = models[m].btno[k];
 			}

 			sprintf(tmdc->name[j], models[m].name, models[m].abs,
 				(data[j][TMDC_BYTE_DEF] & 0xf) << 3, tmdc->mode[j]);

 			sprintf(tmdc->phys[j], "%s/input%d", gameport->phys, j);

 			tmdc->dev[j].private = tmdc;
 			tmdc->dev[j].open = tmdc_open;
 			tmdc->dev[j].close = tmdc_close;

 			tmdc->dev[j].name = tmdc->name[j];
 			tmdc->dev[j].phys = tmdc->phys[j];
 			tmdc->dev[j].id.bustype = BUS_GAMEPORT;
 			tmdc->dev[j].id.vendor = GAMEPORT_ID_VENDOR_THRUSTMASTER;
 			tmdc->dev[j].id.product = models[m].id;
 			tmdc->dev[j].id.version = 0x0100;

 			tmdc->dev[j].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);

 			for (i = 0; i < models[m].abs && i < TMDC_ABS; i++) {
 				if (tmdc->abs[j][i] < 0) continue;
 				set_bit(tmdc->abs[j][i], tmdc->dev[j].absbit);
 				tmdc->dev[j].absmin[tmdc->abs[j][i]] = 8;
 				tmdc->dev[j].absmax[tmdc->abs[j][i]] = 248;
 				tmdc->dev[j].absfuzz[tmdc->abs[j][i]] = 2;
 				tmdc->dev[j].absflat[tmdc->abs[j][i]] = 4;
 			}

 			for (i = 0; i < models[m].hats && i < TMDC_ABS_HAT; i++) {
 				set_bit(tmdc_abs_hat[i], tmdc->dev[j].absbit);
 				tmdc->dev[j].absmin[tmdc_abs_hat[i]] = -1;
 				tmdc->dev[j].absmax[tmdc_abs_hat[i]] = 1;
 			}

 			for (k = l = 0; k < 4; k++) {
 				for (i = 0; i < models[m].btnc[k] && i < TMDC_BTN; i++)
 					set_bit(tmdc->btn[j][i + l], tmdc->dev[j].keybit);
 				l += models[m].btnc[k];
 			}

 			input_register_device(tmdc->dev + j);
 			printk(KERN_INFO "input: %s on %s\n", tmdc->name[j], gameport->phys);
 		}

 	return;
 fail2:	gameport_close(gameport);
 fail1:	kfree(tmdc);
 }

 static void tmdc_disconnect(struct gameport *gameport)
 {
 	struct tmdc *tmdc = gameport->private;
 	int i;
 	for (i = 0; i < 2; i++)
 		if (tmdc->exists & (1 << i))
 			input_unregister_device(tmdc->dev + i);
 	gameport_close(gameport);
 	kfree(tmdc);
 }

 static struct gameport_dev tmdc_dev = {
 	.connect =	tmdc_connect,
 	.disconnect =	tmdc_disconnect,
 };

 int __init tmdc_init(void)
 {
 	gameport_register_device(&tmdc_dev);
 	return 0;
 }

 void __exit tmdc_exit(void)
 {
 	gameport_unregister_device(&tmdc_dev);
 }

 module_init(tmdc_init);
 module_exit(tmdc_exit);
	/*
	* $Id: tmdc.c,v 1.31 2002/01/22 20:29:52 vojtech Exp $
	*
	* Copyright (c) 1998-2001 Vojtech Pavlik
	*
	* Based on the work of:
	* Trystan Larey-Williams
	*/

	/*
	* ThrustMaster DirectConnect (BSP) joystick family 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 <vojtech@ucw.cz>, or by paper mail:
	* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
	*/

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

	MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
	MODULE_DESCRIPTION("ThrustMaster DirectConnect joystick driver");
	MODULE_LICENSE("GPL");

	#define TMDC_MAX_START 400 /* 400 us */
	#define TMDC_MAX_STROBE 45 /* 45 us */
	#define TMDC_MAX_LENGTH 13
	#define TMDC_REFRESH_TIME HZ/50 /* 20 ms */

	#define TMDC_MODE_M3DI 1
	#define TMDC_MODE_3DRP 3
	#define TMDC_MODE_AT 4
	#define TMDC_MODE_FM 8
	#define TMDC_MODE_FGP 163

	#define TMDC_BYTE_ID 10
	#define TMDC_BYTE_REV 11
	#define TMDC_BYTE_DEF 12

	#define TMDC_ABS 7
	#define TMDC_ABS_HAT 4
	#define TMDC_BTN 16

	static unsigned char tmdc_byte_a[16] = { 0, 1, 3, 4, 6, 7 };
	static unsigned char tmdc_byte_d[16] = { 2, 5, 8, 9 };

	static signed char tmdc_abs[TMDC_ABS] =
	{ ABS_X, ABS_Y, ABS_RUDDER, ABS_THROTTLE, ABS_RX, ABS_RY, ABS_RZ };
	static signed char tmdc_abs_hat[TMDC_ABS_HAT] =
	{ ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
	static signed char tmdc_abs_at[TMDC_ABS] =
	{ ABS_X, ABS_Y, ABS_RUDDER, -1, ABS_THROTTLE };
	static signed char tmdc_abs_fm[TMDC_ABS] =
	{ ABS_RX, ABS_RY, ABS_X, ABS_Y };

	static short tmdc_btn_pad[TMDC_BTN] =
	{ BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_START, BTN_SELECT, BTN_TL, BTN_TR };
	static short tmdc_btn_joy[TMDC_BTN] =
	{ BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_THUMB2, BTN_PINKIE,
	BTN_BASE3, BTN_BASE4, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z };
	static short tmdc_btn_fm[TMDC_BTN] =
	{ BTN_TRIGGER, BTN_C, BTN_B, BTN_A, BTN_THUMB, BTN_X, BTN_Y, BTN_Z, BTN_TOP, BTN_TOP2 };
	static short tmdc_btn_at[TMDC_BTN] =
	{ BTN_TRIGGER, BTN_THUMB2, BTN_PINKIE, BTN_THUMB, BTN_BASE6, BTN_BASE5, BTN_BASE4,
	BTN_BASE3, BTN_BASE2, BTN_BASE };

	static struct {
	int x;
	int y;
	} tmdc_hat_to_axis[] = {{ 0, 0}, { 1, 0}, { 0,-1}, {-1, 0}, { 0, 1}};

	struct tmdc {
	struct gameport *gameport;
	struct timer_list timer;
	struct input_dev dev[2];
	char name[2][64];
	char phys[2][32];
	int mode[2];
	signed char *abs[2];
	short *btn[2];
	unsigned char absc[2];
	unsigned char btnc[2][4];
	unsigned char btno[2][4];
	int used;
	int reads;
	int bads;
	unsigned char exists;
	};

	/*
	* tmdc_read_packet() reads a ThrustMaster packet.
	*/

	static int tmdc_read_packet(struct gameport *gameport, unsigned char data[2][TMDC_MAX_LENGTH])
	{
	unsigned char u, v, w, x;
	unsigned long flags;
	int i[2], j[2], t[2], p, k;

	p = gameport_time(gameport, TMDC_MAX_STROBE);

	for (k = 0; k < 2; k++) {
	t[k] = gameport_time(gameport, TMDC_MAX_START);
	i[k] = j[k] = 0;
	}

	local_irq_save(flags);
	gameport_trigger(gameport);

	w = gameport_read(gameport) >> 4;

	do {
	x = w;
	w = gameport_read(gameport) >> 4;

	for (k = 0, v = w, u = x; k < 2; k++, v >>= 2, u >>= 2) {
	if (~v & u & 2) {
	if (t[k] <= 0 \|\| i[k] >= TMDC_MAX_LENGTH) continue;
	t[k] = p;
	if (j[k] == 0) { /* Start bit */
	if (~v & 1) t[k] = 0;
	data[k][i[k]] = 0; j[k]++; continue;
	}
	if (j[k] == 9) { /* Stop bit */
	if (v & 1) t[k] = 0;
	j[k] = 0; i[k]++; continue;
	}
	data[k][i[k]] \|= (~v & 1) << (j[k]++ - 1); /* Data bit */
	}
	t[k]--;
	}
	} while (t[0] > 0 \|\| t[1] > 0);

	local_irq_restore(flags);

	return (i[0] == TMDC_MAX_LENGTH) \| ((i[1] == TMDC_MAX_LENGTH) << 1);
	}

	/*
	* tmdc_read() reads and analyzes ThrustMaster joystick data.
	*/

	static void tmdc_timer(unsigned long private)
	{
	unsigned char data[2][TMDC_MAX_LENGTH];
	struct tmdc tmdc = (void ) private;
	struct input_dev *dev;
	unsigned char r, bad = 0;
	int i, j, k, l;

	tmdc->reads++;

	if ((r = tmdc_read_packet(tmdc->gameport, data)) != tmdc->exists)
	bad = 1;
	else

	for (j = 0; j < 2; j++)
	if (r & (1 << j) & tmdc->exists) {

	if (data[j][TMDC_BYTE_ID] != tmdc->mode[j]) {
	bad = 1;
	continue;
	}

	dev = tmdc->dev + j;

	for (i = 0; i < tmdc->absc[j]; i++) {
	if (tmdc->abs[j][i] < 0) continue;
	input_report_abs(dev, tmdc->abs[j][i], data[j][tmdc_byte_a[i]]);
	}

	switch (tmdc->mode[j]) {

	case TMDC_MODE_M3DI:

	i = tmdc_byte_d[0];
	input_report_abs(dev, ABS_HAT0X, ((data[j][i] >> 3) & 1) - ((data[j][i] >> 1) & 1));
	input_report_abs(dev, ABS_HAT0Y, ((data[j][i] >> 2) & 1) - ( data[j][i] & 1));
	break;

	case TMDC_MODE_AT:

	i = tmdc_byte_a[3];
	input_report_abs(dev, ABS_HAT0X, tmdc_hat_to_axis[(data[j][i] - 141) / 25].x);
	input_report_abs(dev, ABS_HAT0Y, tmdc_hat_to_axis[(data[j][i] - 141) / 25].y);
	break;

	}

	for (k = l = 0; k < 4; k++) {
	for (i = 0; i < tmdc->btnc[j][k]; i++)
	input_report_key(dev, tmdc->btn[j][i + l],
	((data[j][tmdc_byte_d[k]] >> (i + tmdc->btno[j][k])) & 1));
	l += tmdc->btnc[j][k];
	}

	input_sync(dev);
	}

	tmdc->bads += bad;

	mod_timer(&tmdc->timer, jiffies + TMDC_REFRESH_TIME);
	}

	static int tmdc_open(struct input_dev *dev)
	{
	struct tmdc *tmdc = dev->private;
	if (!tmdc->used++)
	mod_timer(&tmdc->timer, jiffies + TMDC_REFRESH_TIME);
	return 0;
	}

	static void tmdc_close(struct input_dev *dev)
	{
	struct tmdc *tmdc = dev->private;
	if (!--tmdc->used)
	del_timer(&tmdc->timer);
	}

	/*
	* tmdc_probe() probes for ThrustMaster type joysticks.
	*/

	static void tmdc_connect(struct gameport gameport, struct gameport_dev dev)
	{
	struct models {
	unsigned char id;
	char *name;
	char abs;
	char hats;
	char btnc[4];
	char btno[4];
	signed char *axes;
	short *buttons;
	} models[] = { { 1, "ThrustMaster Millenium 3D Inceptor", 6, 2, { 4, 2 }, { 4, 6 }, tmdc_abs, tmdc_btn_joy },
	{ 3, "ThrustMaster Rage 3D Gamepad", 2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad },
	{ 4, "ThrustMaster Attack Throttle", 5, 2, { 4, 6 }, { 4, 2 }, tmdc_abs_at, tmdc_btn_at },
	{ 8, "ThrustMaster FragMaster", 4, 0, { 8, 2 }, { 0, 0 }, tmdc_abs_fm, tmdc_btn_fm },
	{ 163, "Thrustmaster Fusion GamePad", 2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad },
	{ 0, "Unknown %d-axis, %d-button TM device %d", 0, 0, { 0, 0 }, { 0, 0 }, tmdc_abs, tmdc_btn_joy }};

	unsigned char data[2][TMDC_MAX_LENGTH];
	struct tmdc *tmdc;
	int i, j, k, l, m;

	if (!(tmdc = kmalloc(sizeof(struct tmdc), GFP_KERNEL)))
	return;
	memset(tmdc, 0, sizeof(struct tmdc));

	gameport->private = tmdc;

	tmdc->gameport = gameport;
	init_timer(&tmdc->timer);
	tmdc->timer.data = (long) tmdc;
	tmdc->timer.function = tmdc_timer;

	if (gameport_open(gameport, dev, GAMEPORT_MODE_RAW))
	goto fail1;

	if (!(tmdc->exists = tmdc_read_packet(gameport, data)))
	goto fail2;

	for (j = 0; j < 2; j++)
	if (tmdc->exists & (1 << j)) {

	tmdc->mode[j] = data[j][TMDC_BYTE_ID];

	for (m = 0; models[m].id && models[m].id != tmdc->mode[j]; m++);

	tmdc->abs[j] = models[m].axes;
	tmdc->btn[j] = models[m].buttons;

	if (!models[m].id) {
	models[m].abs = data[j][TMDC_BYTE_DEF] >> 4;
	for (k = 0; k < 4; k++)
	models[m].btnc[k] = k < (data[j][TMDC_BYTE_DEF] & 0xf) ? 8 : 0;
	}

	tmdc->absc[j] = models[m].abs;
	for (k = 0; k < 4; k++) {
	tmdc->btnc[j][k] = models[m].btnc[k];
	tmdc->btno[j][k] = models[m].btno[k];
	}

	sprintf(tmdc->name[j], models[m].name, models[m].abs,
	(data[j][TMDC_BYTE_DEF] & 0xf) << 3, tmdc->mode[j]);

	sprintf(tmdc->phys[j], "%s/input%d", gameport->phys, j);

	tmdc->dev[j].private = tmdc;
	tmdc->dev[j].open = tmdc_open;
	tmdc->dev[j].close = tmdc_close;

	tmdc->dev[j].name = tmdc->name[j];
	tmdc->dev[j].phys = tmdc->phys[j];
	tmdc->dev[j].id.bustype = BUS_GAMEPORT;
	tmdc->dev[j].id.vendor = GAMEPORT_ID_VENDOR_THRUSTMASTER;
	tmdc->dev[j].id.product = models[m].id;
	tmdc->dev[j].id.version = 0x0100;

	tmdc->dev[j].evbit[0] = BIT(EV_KEY) \| BIT(EV_ABS);

	for (i = 0; i < models[m].abs && i < TMDC_ABS; i++) {
	if (tmdc->abs[j][i] < 0) continue;
	set_bit(tmdc->abs[j][i], tmdc->dev[j].absbit);
	tmdc->dev[j].absmin[tmdc->abs[j][i]] = 8;
	tmdc->dev[j].absmax[tmdc->abs[j][i]] = 248;
	tmdc->dev[j].absfuzz[tmdc->abs[j][i]] = 2;
	tmdc->dev[j].absflat[tmdc->abs[j][i]] = 4;
	}

	for (i = 0; i < models[m].hats && i < TMDC_ABS_HAT; i++) {
	set_bit(tmdc_abs_hat[i], tmdc->dev[j].absbit);
	tmdc->dev[j].absmin[tmdc_abs_hat[i]] = -1;
	tmdc->dev[j].absmax[tmdc_abs_hat[i]] = 1;
	}

	for (k = l = 0; k < 4; k++) {
	for (i = 0; i < models[m].btnc[k] && i < TMDC_BTN; i++)
	set_bit(tmdc->btn[j][i + l], tmdc->dev[j].keybit);
	l += models[m].btnc[k];
	}

	input_register_device(tmdc->dev + j);
	printk(KERN_INFO "input: %s on %s\n", tmdc->name[j], gameport->phys);
	}

	return;
	fail2: gameport_close(gameport);
	fail1: kfree(tmdc);
	}

	static void tmdc_disconnect(struct gameport *gameport)
	{
	struct tmdc *tmdc = gameport->private;
	int i;
	for (i = 0; i < 2; i++)
	if (tmdc->exists & (1 << i))
	input_unregister_device(tmdc->dev + i);
	gameport_close(gameport);
	kfree(tmdc);
	}

	static struct gameport_dev tmdc_dev = {
	.connect = tmdc_connect,
	.disconnect = tmdc_disconnect,
	};

	int __init tmdc_init(void)
	{
	gameport_register_device(&tmdc_dev);
	return 0;
	}

	void __exit tmdc_exit(void)
	{
	gameport_unregister_device(&tmdc_dev);
	}

	module_init(tmdc_init);
	module_exit(tmdc_exit);