[linux-2.6-block.git] / drivers / input / joystick / gf2k.c

/*
 *  Copyright (c) 1998-2001 Vojtech Pavlik
 */

/*
 * Genius Flight 2000 joystick 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/input.h>
#include <linux/gameport.h>
#include <linux/jiffies.h>

#define DRIVER_DESC	"Genius Flight 2000 joystick driver"

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

#define GF2K_START		400	/* The time we wait for the first bit [400 us] */
#define GF2K_STROBE		40	/* The time we wait for the first bit [40 us] */
#define GF2K_TIMEOUT		4	/* Wait for everything to settle [4 ms] */
#define GF2K_LENGTH		80	/* Max number of triplets in a packet */

/*
 * Genius joystick ids ...
 */

#define GF2K_ID_G09		1
#define GF2K_ID_F30D		2
#define GF2K_ID_F30		3
#define GF2K_ID_F31D		4
#define GF2K_ID_F305		5
#define GF2K_ID_F23P		6
#define GF2K_ID_F31		7
#define GF2K_ID_MAX		7

static char gf2k_length[] = { 40, 40, 40, 40, 40, 40, 40, 40 };
static char gf2k_hat_to_axis[][2] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};

static char *gf2k_names[] = {"", "Genius G-09D", "Genius F-30D", "Genius F-30", "Genius MaxFighter F-31D",
				"Genius F-30-5", "Genius Flight2000 F-23", "Genius F-31"};
static unsigned char gf2k_hats[] = { 0, 2, 0, 0, 2, 0, 2, 0 };
static unsigned char gf2k_axes[] = { 0, 2, 0, 0, 4, 0, 4, 0 };
static unsigned char gf2k_joys[] = { 0, 0, 0, 0,10, 0, 8, 0 };
static unsigned char gf2k_pads[] = { 0, 6, 0, 0, 0, 0, 0, 0 };
static unsigned char gf2k_lens[] = { 0,18, 0, 0,18, 0,18, 0 };

static unsigned char gf2k_abs[] = { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_GAS, ABS_BRAKE };
static short gf2k_btn_joy[] = { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4 };
static short gf2k_btn_pad[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_START, BTN_SELECT };


static short gf2k_seq_reset[] = { 240, 340, 0 };
static short gf2k_seq_digital[] = { 590, 320, 860, 0 };

struct gf2k {
	struct gameport *gameport;
	struct input_dev *dev;
	int reads;
	int bads;
	unsigned char id;
	unsigned char length;
	char phys[32];
};

/*
 * gf2k_read_packet() reads a Genius Flight2000 packet.
 */

static int gf2k_read_packet(struct gameport *gameport, int length, char *data)
{
	unsigned char u, v;
	int i;
	unsigned int t, p;
	unsigned long flags;

	t = gameport_time(gameport, GF2K_START);
	p = gameport_time(gameport, GF2K_STROBE);

	i = 0;

	local_irq_save(flags);

	gameport_trigger(gameport);
	v = gameport_read(gameport);

	while (t > 0 && i < length) {
		t--; u = v;
		v = gameport_read(gameport);
		if (v & ~u & 0x10) {
			data[i++] = v >> 5;
			t = p;
		}
	}

	local_irq_restore(flags);

	return i;
}

/*
 * gf2k_trigger_seq() initializes a Genius Flight2000 joystick
 * into digital mode.
 */

static void gf2k_trigger_seq(struct gameport *gameport, short *seq)
{

	unsigned long flags;
	int i, t;

        local_irq_save(flags);

	i = 0;
        do {
		gameport_trigger(gameport);
		t = gameport_time(gameport, GF2K_TIMEOUT * 1000);
		while ((gameport_read(gameport) & 1) && t) t--;
                udelay(seq[i]);
        } while (seq[++i]);

	gameport_trigger(gameport);

	local_irq_restore(flags);
}

/*
 * js_sw_get_bits() composes bits from the triplet buffer into a __u64.
 * Parameter 'pos' is bit number inside packet where to start at, 'num' is number
 * of bits to be read, 'shift' is offset in the resulting __u64 to start at, bits
 * is number of bits per triplet.
 */

#define GB(p,n,s)	gf2k_get_bits(data, p, n, s)

static int gf2k_get_bits(unsigned char *buf, int pos, int num, int shift)
{
	__u64 data = 0;
	int i;

	for (i = 0; i < num / 3 + 2; i++)
		data |= buf[pos / 3 + i] << (i * 3);
	data >>= pos % 3;
	data &= (1 << num) - 1;
	data <<= shift;

	return data;
}

static void gf2k_read(struct gf2k *gf2k, unsigned char *data)
{
	struct input_dev *dev = gf2k->dev;
	int i, t;

	for (i = 0; i < 4 && i < gf2k_axes[gf2k->id]; i++)
		input_report_abs(dev, gf2k_abs[i], GB(i<<3,8,0) | GB(i+46,1,8) | GB(i+50,1,9));

	for (i = 0; i < 2 && i < gf2k_axes[gf2k->id] - 4; i++)
		input_report_abs(dev, gf2k_abs[i], GB(i*9+60,8,0) | GB(i+54,1,9));

	t = GB(40,4,0);

	for (i = 0; i < gf2k_hats[gf2k->id]; i++)
		input_report_abs(dev, ABS_HAT0X + i, gf2k_hat_to_axis[t][i]);

	t = GB(44,2,0) | GB(32,8,2) | GB(78,2,10);

	for (i = 0; i < gf2k_joys[gf2k->id]; i++)
		input_report_key(dev, gf2k_btn_joy[i], (t >> i) & 1);

	for (i = 0; i < gf2k_pads[gf2k->id]; i++)
		input_report_key(dev, gf2k_btn_pad[i], (t >> i) & 1);

	input_sync(dev);
}

/*
 * gf2k_poll() reads and analyzes Genius joystick data.
 */

static void gf2k_poll(struct gameport *gameport)
{
	struct gf2k *gf2k = gameport_get_drvdata(gameport);
	unsigned char data[GF2K_LENGTH];

	gf2k->reads++;

	if (gf2k_read_packet(gf2k->gameport, gf2k_length[gf2k->id], data) < gf2k_length[gf2k->id])
		gf2k->bads++;
	else
		gf2k_read(gf2k, data);
}

static int gf2k_open(struct input_dev *dev)
{
	struct gf2k *gf2k = input_get_drvdata(dev);

	gameport_start_polling(gf2k->gameport);
	return 0;
}

static void gf2k_close(struct input_dev *dev)
{
	struct gf2k *gf2k = input_get_drvdata(dev);

	gameport_stop_polling(gf2k->gameport);
}

/*
 * gf2k_connect() probes for Genius id joysticks.
 */

static int gf2k_connect(struct gameport *gameport, struct gameport_driver *drv)
{
	struct gf2k *gf2k;
	struct input_dev *input_dev;
	unsigned char data[GF2K_LENGTH];
	int i, err;

	gf2k = kzalloc(sizeof(struct gf2k), GFP_KERNEL);
	input_dev = input_allocate_device();
	if (!gf2k || !input_dev) {
		err = -ENOMEM;
		goto fail1;
	}

	gf2k->gameport = gameport;
	gf2k->dev = input_dev;

	gameport_set_drvdata(gameport, gf2k);

	err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
	if (err)
		goto fail1;

	gf2k_trigger_seq(gameport, gf2k_seq_reset);

	msleep(GF2K_TIMEOUT);

	gf2k_trigger_seq(gameport, gf2k_seq_digital);

	msleep(GF2K_TIMEOUT);

	if (gf2k_read_packet(gameport, GF2K_LENGTH, data) < 12) {
		err = -ENODEV;
		goto fail2;
	}

	if (!(gf2k->id = GB(7,2,0) | GB(3,3,2) | GB(0,3,5))) {
		err = -ENODEV;
		goto fail2;
	}

#ifdef RESET_WORKS
	if ((gf2k->id != (GB(19,2,0) | GB(15,3,2) | GB(12,3,5))) &&
	    (gf2k->id != (GB(31,2,0) | GB(27,3,2) | GB(24,3,5)))) {
		err = -ENODEV;
		goto fail2;
	}
#else
	gf2k->id = 6;
#endif

	if (gf2k->id > GF2K_ID_MAX || !gf2k_axes[gf2k->id]) {
		printk(KERN_WARNING "gf2k.c: Not yet supported joystick on %s. [id: %d type:%s]\n",
			gameport->phys, gf2k->id, gf2k->id > GF2K_ID_MAX ? "Unknown" : gf2k_names[gf2k->id]);
		err = -ENODEV;
		goto fail2;
	}

	gameport_set_poll_handler(gameport, gf2k_poll);
	gameport_set_poll_interval(gameport, 20);

	snprintf(gf2k->phys, sizeof(gf2k->phys), "%s/input0", gameport->phys);

	gf2k->length = gf2k_lens[gf2k->id];

	input_dev->name = gf2k_names[gf2k->id];
	input_dev->phys = gf2k->phys;
	input_dev->id.bustype = BUS_GAMEPORT;
	input_dev->id.vendor = GAMEPORT_ID_VENDOR_GENIUS;
	input_dev->id.product = gf2k->id;
	input_dev->id.version = 0x0100;
	input_dev->dev.parent = &gameport->dev;

	input_set_drvdata(input_dev, gf2k);

	input_dev->open = gf2k_open;
	input_dev->close = gf2k_close;

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

	for (i = 0; i < gf2k_axes[gf2k->id]; i++)
		set_bit(gf2k_abs[i], input_dev->absbit);

	for (i = 0; i < gf2k_hats[gf2k->id]; i++) {
		set_bit(ABS_HAT0X + i, input_dev->absbit);
		input_dev->absmin[ABS_HAT0X + i] = -1;
		input_dev->absmax[ABS_HAT0X + i] = 1;
	}

	for (i = 0; i < gf2k_joys[gf2k->id]; i++)
		set_bit(gf2k_btn_joy[i], input_dev->keybit);

	for (i = 0; i < gf2k_pads[gf2k->id]; i++)
		set_bit(gf2k_btn_pad[i], input_dev->keybit);

	gf2k_read_packet(gameport, gf2k->length, data);
	gf2k_read(gf2k, data);

	for (i = 0; i < gf2k_axes[gf2k->id]; i++) {
		input_dev->absmax[gf2k_abs[i]] = (i < 2) ? input_dev->abs[gf2k_abs[i]] * 2 - 32 :
			  input_dev->abs[gf2k_abs[0]] + input_dev->abs[gf2k_abs[1]] - 32;
		input_dev->absmin[gf2k_abs[i]] = 32;
		input_dev->absfuzz[gf2k_abs[i]] = 8;
		input_dev->absflat[gf2k_abs[i]] = (i < 2) ? 24 : 0;
	}

	err = input_register_device(gf2k->dev);
	if (err)
		goto fail2;

	return 0;

 fail2:	gameport_close(gameport);
 fail1:	gameport_set_drvdata(gameport, NULL);
	input_free_device(input_dev);
	kfree(gf2k);
	return err;
}

static void gf2k_disconnect(struct gameport *gameport)
{
	struct gf2k *gf2k = gameport_get_drvdata(gameport);

	input_unregister_device(gf2k->dev);
	gameport_close(gameport);
	gameport_set_drvdata(gameport, NULL);
	kfree(gf2k);
}

static struct gameport_driver gf2k_drv = {
	.driver		= {
		.name	= "gf2k",
	},
	.description	= DRIVER_DESC,
	.connect	= gf2k_connect,
	.disconnect	= gf2k_disconnect,
};

static int __init gf2k_init(void)
{
	return gameport_register_driver(&gf2k_drv);
}

static void __exit gf2k_exit(void)
{
	gameport_unregister_driver(&gf2k_drv);
}

module_init(gf2k_init);
module_exit(gf2k_exit);
Commit	Line	Data
1da177e4	1	/*
1da177e4 LT	2	* Copyright (c) 1998-2001 Vojtech Pavlik
	3	*/
	4
	5	/*
	6	* Genius Flight 2000 joystick 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 <vojtech@ucw.cz>, or by paper mail:
	26	* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
	27	*/
	28
	29	#include <linux/delay.h>
	30	#include <linux/kernel.h>
	31	#include <linux/slab.h>
	32	#include <linux/module.h>
	33	#include <linux/init.h>
	34	#include <linux/input.h>
	35	#include <linux/gameport.h>
4e57b681	36	#include <linux/jiffies.h>
1da177e4 LT	37
	38	#define DRIVER_DESC "Genius Flight 2000 joystick driver"
	39
	40	MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
	41	MODULE_DESCRIPTION(DRIVER_DESC);
	42	MODULE_LICENSE("GPL");
	43
	44	#define GF2K_START 400 /* The time we wait for the first bit [400 us] */
	45	#define GF2K_STROBE 40 /* The time we wait for the first bit [40 us] */
	46	#define GF2K_TIMEOUT 4 /* Wait for everything to settle [4 ms] */
	47	#define GF2K_LENGTH 80 /* Max number of triplets in a packet */
	48
	49	/*
	50	* Genius joystick ids ...
	51	*/
	52
	53	#define GF2K_ID_G09 1
	54	#define GF2K_ID_F30D 2
	55	#define GF2K_ID_F30 3
	56	#define GF2K_ID_F31D 4
	57	#define GF2K_ID_F305 5
	58	#define GF2K_ID_F23P 6
	59	#define GF2K_ID_F31 7
	60	#define GF2K_ID_MAX 7
	61
	62	static char gf2k_length[] = { 40, 40, 40, 40, 40, 40, 40, 40 };
	63	static char gf2k_hat_to_axis[][2] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
	64
	65	static char *gf2k_names[] = {"", "Genius G-09D", "Genius F-30D", "Genius F-30", "Genius MaxFighter F-31D",
	66	"Genius F-30-5", "Genius Flight2000 F-23", "Genius F-31"};
	67	static unsigned char gf2k_hats[] = { 0, 2, 0, 0, 2, 0, 2, 0 };
	68	static unsigned char gf2k_axes[] = { 0, 2, 0, 0, 4, 0, 4, 0 };
	69	static unsigned char gf2k_joys[] = { 0, 0, 0, 0,10, 0, 8, 0 };
	70	static unsigned char gf2k_pads[] = { 0, 6, 0, 0, 0, 0, 0, 0 };
	71	static unsigned char gf2k_lens[] = { 0,18, 0, 0,18, 0,18, 0 };
	72
	73	static unsigned char gf2k_abs[] = { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_GAS, ABS_BRAKE };
	74	static short gf2k_btn_joy[] = { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4 };
	75	static short gf2k_btn_pad[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_START, BTN_SELECT };
	76
	77
	78	static short gf2k_seq_reset[] = { 240, 340, 0 };
	79	static short gf2k_seq_digital[] = { 590, 320, 860, 0 };
	80
	81	struct gf2k {
	82	struct gameport *gameport;
17dd3f0f	83	struct input_dev *dev;
1da177e4 LT	84	int reads;
	85	int bads;
	86	unsigned char id;
	87	unsigned char length;
	88	char phys[32];
	89	};
	90
	91	/*
	92	* gf2k_read_packet() reads a Genius Flight2000 packet.
	93	*/
	94
	95	static int gf2k_read_packet(struct gameport gameport, int length, char data)
	96	{
	97	unsigned char u, v;
	98	int i;
	99	unsigned int t, p;
	100	unsigned long flags;
	101
	102	t = gameport_time(gameport, GF2K_START);
	103	p = gameport_time(gameport, GF2K_STROBE);
	104
	105	i = 0;
	106
	107	local_irq_save(flags);
	108
	109	gameport_trigger(gameport);
	110	v = gameport_read(gameport);
	111
	112	while (t > 0 && i < length) {
	113	t--; u = v;
	114	v = gameport_read(gameport);
	115	if (v & ~u & 0x10) {
	116	data[i++] = v >> 5;
	117	t = p;
	118	}
	119	}
	120
	121	local_irq_restore(flags);
	122
	123	return i;
	124	}
	125
	126	/*
	127	* gf2k_trigger_seq() initializes a Genius Flight2000 joystick
	128	* into digital mode.
	129	*/
	130
	131	static void gf2k_trigger_seq(struct gameport gameport, short seq)
	132	{
	133
	134	unsigned long flags;
	135	int i, t;
	136
	137	local_irq_save(flags);
	138
	139	i = 0;
	140	do {
	141	gameport_trigger(gameport);
	142	t = gameport_time(gameport, GF2K_TIMEOUT * 1000);
	143	while ((gameport_read(gameport) & 1) && t) t--;
	144	udelay(seq[i]);
	145	} while (seq[++i]);
	146
	147	gameport_trigger(gameport);
148
149	local_irq_restore(flags);
150	}
151
152	/*
153	* js_sw_get_bits() composes bits from the triplet buffer into a __u64.
154	* Parameter 'pos' is bit number inside packet where to start at, 'num' is number
155	* of bits to be read, 'shift' is offset in the resulting __u64 to start at, bits
156	* is number of bits per triplet.
157	*/
158
159	#define GB(p,n,s) gf2k_get_bits(data, p, n, s)
160
161	static int gf2k_get_bits(unsigned char *buf, int pos, int num, int shift)
162	{
163	__u64 data = 0;
164	int i;
165
166	for (i = 0; i < num / 3 + 2; i++)
167	data \|= buf[pos / 3 + i] << (i * 3);
168	data >>= pos % 3;
169	data &= (1 << num) - 1;
170	data <<= shift;
171
172	return data;
173	}
174
175	static void gf2k_read(struct gf2k gf2k, unsigned char data)
176	{
17dd3f0f	177	struct input_dev *dev = gf2k->dev;
1da177e4 LT	178	int i, t;
	179
	180	for (i = 0; i < 4 && i < gf2k_axes[gf2k->id]; i++)
	181	input_report_abs(dev, gf2k_abs[i], GB(i<<3,8,0) \| GB(i+46,1,8) \| GB(i+50,1,9));
	182
	183	for (i = 0; i < 2 && i < gf2k_axes[gf2k->id] - 4; i++)
	184	input_report_abs(dev, gf2k_abs[i], GB(i*9+60,8,0) \| GB(i+54,1,9));
	185
	186	t = GB(40,4,0);
	187
	188	for (i = 0; i < gf2k_hats[gf2k->id]; i++)
	189	input_report_abs(dev, ABS_HAT0X + i, gf2k_hat_to_axis[t][i]);
	190
	191	t = GB(44,2,0) \| GB(32,8,2) \| GB(78,2,10);
	192
	193	for (i = 0; i < gf2k_joys[gf2k->id]; i++)
	194	input_report_key(dev, gf2k_btn_joy[i], (t >> i) & 1);
	195
	196	for (i = 0; i < gf2k_pads[gf2k->id]; i++)
	197	input_report_key(dev, gf2k_btn_pad[i], (t >> i) & 1);
	198
	199	input_sync(dev);
	200	}
	201
	202	/*
	203	* gf2k_poll() reads and analyzes Genius joystick data.
	204	*/
	205
	206	static void gf2k_poll(struct gameport *gameport)
	207	{
	208	struct gf2k *gf2k = gameport_get_drvdata(gameport);
	209	unsigned char data[GF2K_LENGTH];
	210
	211	gf2k->reads++;
	212
	213	if (gf2k_read_packet(gf2k->gameport, gf2k_length[gf2k->id], data) < gf2k_length[gf2k->id])
	214	gf2k->bads++;
	215	else
	216	gf2k_read(gf2k, data);
	217	}
	218
	219	static int gf2k_open(struct input_dev *dev)
	220	{
8715c1cf	221	struct gf2k *gf2k = input_get_drvdata(dev);
1da177e4 LT	222
	223	gameport_start_polling(gf2k->gameport);
	224	return 0;
	225	}
	226
	227	static void gf2k_close(struct input_dev *dev)
	228	{
8715c1cf	229	struct gf2k *gf2k = input_get_drvdata(dev);
1da177e4 LT	230
	231	gameport_stop_polling(gf2k->gameport);
	232	}
	233
	234	/*
	235	* gf2k_connect() probes for Genius id joysticks.
	236	*/
	237
	238	static int gf2k_connect(struct gameport gameport, struct gameport_driver drv)
	239	{
	240	struct gf2k *gf2k;
17dd3f0f	241	struct input_dev *input_dev;
1da177e4 LT	242	unsigned char data[GF2K_LENGTH];
	243	int i, err;
	244
17dd3f0f DT	245	gf2k = kzalloc(sizeof(struct gf2k), GFP_KERNEL);
	246	input_dev = input_allocate_device();
	247	if (!gf2k \|\| !input_dev) {
	248	err = -ENOMEM;
	249	goto fail1;
	250	}
1da177e4 LT	251
1da177e4 LT	252	gf2k->gameport = gameport;
17dd3f0f	253	gf2k->dev = input_dev;
1da177e4 LT	254
	255	gameport_set_drvdata(gameport, gf2k);
	256
	257	err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
	258	if (err)
	259	goto fail1;
	260
	261	gf2k_trigger_seq(gameport, gf2k_seq_reset);
	262
	263	msleep(GF2K_TIMEOUT);
	264
	265	gf2k_trigger_seq(gameport, gf2k_seq_digital);
	266
	267	msleep(GF2K_TIMEOUT);
	268
	269	if (gf2k_read_packet(gameport, GF2K_LENGTH, data) < 12) {
	270	err = -ENODEV;
	271	goto fail2;
	272	}
	273
	274	if (!(gf2k->id = GB(7,2,0) \| GB(3,3,2) \| GB(0,3,5))) {
	275	err = -ENODEV;
	276	goto fail2;
	277	}
	278
	279	#ifdef RESET_WORKS
abf2a117	280	if ((gf2k->id != (GB(19,2,0) \| GB(15,3,2) \| GB(12,3,5))) &&
1da177e4 LT	281	(gf2k->id != (GB(31,2,0) \| GB(27,3,2) \| GB(24,3,5)))) {
	282	err = -ENODEV;
	283	goto fail2;
	284	}
	285	#else
	286	gf2k->id = 6;
	287	#endif
	288
	289	if (gf2k->id > GF2K_ID_MAX \|\| !gf2k_axes[gf2k->id]) {
	290	printk(KERN_WARNING "gf2k.c: Not yet supported joystick on %s. [id: %d type:%s]\n",
	291	gameport->phys, gf2k->id, gf2k->id > GF2K_ID_MAX ? "Unknown" : gf2k_names[gf2k->id]);
	292	err = -ENODEV;
	293	goto fail2;
	294	}
	295
	296	gameport_set_poll_handler(gameport, gf2k_poll);
	297	gameport_set_poll_interval(gameport, 20);
	298
10ca4c0a	299	snprintf(gf2k->phys, sizeof(gf2k->phys), "%s/input0", gameport->phys);
1da177e4 LT	300
	301	gf2k->length = gf2k_lens[gf2k->id];
	302
17dd3f0f DT	303	input_dev->name = gf2k_names[gf2k->id];
	304	input_dev->phys = gf2k->phys;
	305	input_dev->id.bustype = BUS_GAMEPORT;
	306	input_dev->id.vendor = GAMEPORT_ID_VENDOR_GENIUS;
	307	input_dev->id.product = gf2k->id;
	308	input_dev->id.version = 0x0100;
935e658e	309	input_dev->dev.parent = &gameport->dev;
8715c1cf DT	310
8715c1cf DT	311	input_set_drvdata(input_dev, gf2k);
1da177e4	312
17dd3f0f DT	313	input_dev->open = gf2k_open;
17dd3f0f DT	314	input_dev->close = gf2k_close;
8715c1cf	315
7b19ada2	316	input_dev->evbit[0] = BIT_MASK(EV_KEY) \| BIT_MASK(EV_ABS);
1da177e4 LT	317
1da177e4 LT	318	for (i = 0; i < gf2k_axes[gf2k->id]; i++)
17dd3f0f	319	set_bit(gf2k_abs[i], input_dev->absbit);
1da177e4 LT	320
1da177e4 LT	321	for (i = 0; i < gf2k_hats[gf2k->id]; i++) {
17dd3f0f DT	322	set_bit(ABS_HAT0X + i, input_dev->absbit);
	323	input_dev->absmin[ABS_HAT0X + i] = -1;
	324	input_dev->absmax[ABS_HAT0X + i] = 1;
1da177e4 LT	325	}
	326
	327	for (i = 0; i < gf2k_joys[gf2k->id]; i++)
17dd3f0f	328	set_bit(gf2k_btn_joy[i], input_dev->keybit);
1da177e4 LT	329
1da177e4 LT	330	for (i = 0; i < gf2k_pads[gf2k->id]; i++)
17dd3f0f	331	set_bit(gf2k_btn_pad[i], input_dev->keybit);
1da177e4 LT	332
	333	gf2k_read_packet(gameport, gf2k->length, data);
	334	gf2k_read(gf2k, data);
	335
	336	for (i = 0; i < gf2k_axes[gf2k->id]; i++) {
17dd3f0f DT	337	input_dev->absmax[gf2k_abs[i]] = (i < 2) ? input_dev->abs[gf2k_abs[i]] * 2 - 32 :
	338	input_dev->abs[gf2k_abs[0]] + input_dev->abs[gf2k_abs[1]] - 32;
	339	input_dev->absmin[gf2k_abs[i]] = 32;
	340	input_dev->absfuzz[gf2k_abs[i]] = 8;
	341	input_dev->absflat[gf2k_abs[i]] = (i < 2) ? 24 : 0;
1da177e4 LT	342	}
1da177e4 LT	343
127278ce DT	344	err = input_register_device(gf2k->dev);
	345	if (err)
	346	goto fail2;
1da177e4 LT	347
	348	return 0;
	349
17dd3f0f DT	350	fail2: gameport_close(gameport);
	351	fail1: gameport_set_drvdata(gameport, NULL);
	352	input_free_device(input_dev);
1da177e4 LT	353	kfree(gf2k);
	354	return err;
	355	}
	356
	357	static void gf2k_disconnect(struct gameport *gameport)
	358	{
	359	struct gf2k *gf2k = gameport_get_drvdata(gameport);
	360
17dd3f0f	361	input_unregister_device(gf2k->dev);
1da177e4 LT	362	gameport_close(gameport);
	363	gameport_set_drvdata(gameport, NULL);
	364	kfree(gf2k);
	365	}
	366
	367	static struct gameport_driver gf2k_drv = {
	368	.driver = {
	369	.name = "gf2k",
	370	},
	371	.description = DRIVER_DESC,
	372	.connect = gf2k_connect,
	373	.disconnect = gf2k_disconnect,
	374	};
	375
	376	static int __init gf2k_init(void)
	377	{
2547203d	378	return gameport_register_driver(&gf2k_drv);
1da177e4 LT	379	}
	380
	381	static void __exit gf2k_exit(void)
	382	{
	383	gameport_unregister_driver(&gf2k_drv);
	384	}
	385
	386	module_init(gf2k_init);
	387	module_exit(gf2k_exit);