Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 647 insertions, 0 deletions

diff --git a/drivers/input/joystick/db9.c b/drivers/input/joystick/db9.c
new file mode 100644
index 00000000000..cfdd3acf06a
--- /dev/null
+++ b/drivers/input/joystick/db9.c
@@ -0,0 +1,647 @@
+/*
+ * $Id: db9.c,v 1.13 2002/04/07 20:13:37 vojtech Exp $
+ *
+ *  Copyright (c) 1999-2001 Vojtech Pavlik
+ *
+ *  Based on the work of:
+ *	Andree Borrmann		Mats Sjövall
+ */
+
+/*
+ * Atari, Amstrad, Commodore, Amiga, Sega, etc. 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/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/parport.h>
+#include <linux/input.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver");
+MODULE_LICENSE("GPL");
+
+static int db9[] __initdata = { -1, 0 };
+static int db9_nargs __initdata = 0;
+module_param_array_named(dev, db9, int, &db9_nargs, 0);
+MODULE_PARM_DESC(dev, "Describes first attached device (<parport#>,<type>)");
+
+static int db9_2[] __initdata = { -1, 0 };
+static int db9_nargs_2 __initdata = 0;
+module_param_array_named(dev2, db9_2, int, &db9_nargs_2, 0);
+MODULE_PARM_DESC(dev2, "Describes second attached device (<parport#>,<type>)");
+
+static int db9_3[] __initdata = { -1, 0 };
+static int db9_nargs_3 __initdata = 0;
+module_param_array_named(dev3, db9_3, int, &db9_nargs_3, 0);
+MODULE_PARM_DESC(dev3, "Describes third attached device (<parport#>,<type>)");
+
+__obsolete_setup("db9=");
+__obsolete_setup("db9_2=");
+__obsolete_setup("db9_3=");
+
+#define DB9_MULTI_STICK		0x01
+#define DB9_MULTI2_STICK	0x02
+#define DB9_GENESIS_PAD		0x03
+#define DB9_GENESIS5_PAD	0x05
+#define DB9_GENESIS6_PAD	0x06
+#define DB9_SATURN_PAD		0x07
+#define DB9_MULTI_0802		0x08
+#define DB9_MULTI_0802_2	0x09
+#define DB9_CD32_PAD		0x0A
+#define DB9_SATURN_DPP		0x0B
+#define DB9_SATURN_DPP_2	0x0C
+#define DB9_MAX_PAD		0x0D
+
+#define DB9_UP			0x01
+#define DB9_DOWN		0x02
+#define DB9_LEFT		0x04
+#define DB9_RIGHT		0x08
+#define DB9_FIRE1		0x10
+#define DB9_FIRE2		0x20
+#define DB9_FIRE3		0x40
+#define DB9_FIRE4		0x80
+
+#define DB9_NORMAL		0x0a
+#define DB9_NOSELECT		0x08
+
+#define DB9_MAX_DEVICES 2
+
+#define DB9_GENESIS6_DELAY	14
+#define DB9_REFRESH_TIME	HZ/100
+
+struct db9 {
+	struct input_dev dev[DB9_MAX_DEVICES];
+	struct timer_list timer;
+	struct pardevice *pd;
+	int mode;
+	int used;
+	char phys[2][32];
+};
+
+static struct db9 *db9_base[3];
+
+static short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB };
+static short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE };
+static short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START };
+
+static char db9_buttons[DB9_MAX_PAD] = { 0, 1, 2, 4, 0, 6, 8, 9, 1, 1, 7, 9, 9 };
+static short *db9_btn[DB9_MAX_PAD] = { NULL, db9_multi_btn, db9_multi_btn, db9_genesis_btn, NULL, db9_genesis_btn,
+					db9_genesis_btn, db9_cd32_btn, db9_multi_btn, db9_multi_btn, db9_cd32_btn,
+					db9_cd32_btn, db9_cd32_btn };
+static char *db9_name[DB9_MAX_PAD] = { NULL, "Multisystem joystick", "Multisystem joystick (2 fire)", "Genesis pad",
+				      NULL, "Genesis 5 pad", "Genesis 6 pad", "Saturn pad", "Multisystem (0.8.0.2) joystick",
+				     "Multisystem (0.8.0.2-dual) joystick", "Amiga CD-32 pad", "Saturn dpp", "Saturn dpp dual" };
+
+static const int db9_max_pads[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 6, 1, 2, 1, 6, 12 };
+static const int db9_num_axis[DB9_MAX_PAD] = { 0, 2, 2, 2, 0, 2, 2, 7, 2, 2, 2 ,7, 7 };
+static const short db9_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_RZ, ABS_Z, ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
+static const int db9_bidirectional[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 0 };
+static const int db9_reverse[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0 };
+
+/*
+ * Saturn controllers
+ */
+#define DB9_SATURN_DELAY 300
+static const int db9_saturn_byte[] = { 1, 1, 1, 2, 2, 2, 2, 2, 1 };
+static const unsigned char db9_saturn_mask[] = { 0x04, 0x01, 0x02, 0x40, 0x20, 0x10, 0x08, 0x80, 0x08 };
+
+/*
+ * db9_saturn_write_sub() writes 2 bit data.
+ */
+static void db9_saturn_write_sub(struct parport *port, int type, unsigned char data, int powered, int pwr_sub)
+{
+	unsigned char c;
+
+	switch (type) {
+	case 1: /* DPP1 */
+		c = 0x80 | 0x30 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | data;
+		parport_write_data(port, c);
+		break;
+	case 2: /* DPP2 */
+		c = 0x40 | data << 4 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | 0x03;
+		parport_write_data(port, c);
+		break;
+	case 0:	/* DB9 */
+		c = ((((data & 2) ? 2 : 0) | ((data & 1) ? 4 : 0)) ^ 0x02) | !powered;
+		parport_write_control(port, c);
+		break;
+	}
+}
+
+/*
+ * gc_saturn_read_sub() reads 4 bit data.
+ */
+static unsigned char db9_saturn_read_sub(struct parport *port, int type)
+{
+	unsigned char data;
+
+	if (type) {
+		/* DPP */
+		data = parport_read_status(port) ^ 0x80;
+		return (data & 0x80 ? 1 : 0) | (data & 0x40 ? 2 : 0)
+		     | (data & 0x20 ? 4 : 0) | (data & 0x10 ? 8 : 0);
+	} else {
+		/* DB9 */
+		data = parport_read_data(port) & 0x0f;
+		return (data & 0x8 ? 1 : 0) | (data & 0x4 ? 2 : 0)
+		     | (data & 0x2 ? 4 : 0) | (data & 0x1 ? 8 : 0);
+	}
+}
+
+/*
+ * db9_saturn_read_analog() sends clock and reads 8 bit data.
+ */
+static unsigned char db9_saturn_read_analog(struct parport *port, int type, int powered)
+{
+	unsigned char data;
+
+	db9_saturn_write_sub(port, type, 0, powered, 0);
+	udelay(DB9_SATURN_DELAY);
+	data = db9_saturn_read_sub(port, type) << 4;
+	db9_saturn_write_sub(port, type, 2, powered, 0);
+	udelay(DB9_SATURN_DELAY);
+	data |= db9_saturn_read_sub(port, type);
+	return data;
+}
+
+/*
+ * db9_saturn_read_packet() reads whole saturn packet at connector
+ * and returns device identifier code.
+ */
+static unsigned char db9_saturn_read_packet(struct parport *port, unsigned char *data, int type, int powered)
+{
+	int i, j;
+	unsigned char tmp;
+
+	db9_saturn_write_sub(port, type, 3, powered, 0);
+	data[0] = db9_saturn_read_sub(port, type);
+	switch (data[0] & 0x0f) {
+	case 0xf:
+		/* 1111  no pad */
+		return data[0] = 0xff;
+	case 0x4: case 0x4 | 0x8:
+		/* ?100 : digital controller */
+		db9_saturn_write_sub(port, type, 0, powered, 1);
+		data[2] = db9_saturn_read_sub(port, type) << 4;
+		db9_saturn_write_sub(port, type, 2, powered, 1);
+		data[1] = db9_saturn_read_sub(port, type) << 4;
+		db9_saturn_write_sub(port, type, 1, powered, 1);
+		data[1] |= db9_saturn_read_sub(port, type);
+		db9_saturn_write_sub(port, type, 3, powered, 1);
+		/* data[2] |= db9_saturn_read_sub(port, type); */
+		data[2] |= data[0];
+		return data[0] = 0x02;
+	case 0x1:
+		/* 0001 : analog controller or multitap */
+		db9_saturn_write_sub(port, type, 2, powered, 0);
+		udelay(DB9_SATURN_DELAY);
+		data[0] = db9_saturn_read_analog(port, type, powered);
+		if (data[0] != 0x41) {
+			/* read analog controller */
+			for (i = 0; i < (data[0] & 0x0f); i++)
+				data[i + 1] = db9_saturn_read_analog(port, type, powered);
+			db9_saturn_write_sub(port, type, 3, powered, 0);
+			return data[0];
+		} else {
+			/* read multitap */
+			if (db9_saturn_read_analog(port, type, powered) != 0x60)
+				return data[0] = 0xff;
+			for (i = 0; i < 60; i += 10) {
+				data[i] = db9_saturn_read_analog(port, type, powered);
+				if (data[i] != 0xff)
+					/* read each pad */
+					for (j = 0; j < (data[i] & 0x0f); j++)
+						data[i + j + 1] = db9_saturn_read_analog(port, type, powered);
+			}
+			db9_saturn_write_sub(port, type, 3, powered, 0);
+			return 0x41;
+		}
+	case 0x0:
+		/* 0000 : mouse */
+		db9_saturn_write_sub(port, type, 2, powered, 0);
+		udelay(DB9_SATURN_DELAY);
+		tmp = db9_saturn_read_analog(port, type, powered);
+		if (tmp == 0xff) {
+			for (i = 0; i < 3; i++)
+				data[i + 1] = db9_saturn_read_analog(port, type, powered);
+			db9_saturn_write_sub(port, type, 3, powered, 0);
+			return data[0] = 0xe3;
+		}
+	default:
+		return data[0];
+	}
+}
+
+/*
+ * db9_saturn_report() analyzes packet and reports.
+ */
+static int db9_saturn_report(unsigned char id, unsigned char data[60], struct input_dev *dev, int n, int max_pads)
+{
+	int tmp, i, j;
+
+	tmp = (id == 0x41) ? 60 : 10;
+	for (j = 0; (j < tmp) && (n < max_pads); j += 10, n++) {
+		switch (data[j]) {
+		case 0x16: /* multi controller (analog 4 axis) */
+			input_report_abs(dev + n, db9_abs[5], data[j + 6]);
+		case 0x15: /* mission stick (analog 3 axis) */
+			input_report_abs(dev + n, db9_abs[3], data[j + 4]);
+			input_report_abs(dev + n, db9_abs[4], data[j + 5]);
+		case 0x13: /* racing controller (analog 1 axis) */
+			input_report_abs(dev + n, db9_abs[2], data[j + 3]);
+		case 0x34: /* saturn keyboard (udlr ZXC ASD QE Esc) */
+		case 0x02: /* digital pad (digital 2 axis + buttons) */
+			input_report_abs(dev + n, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
+			input_report_abs(dev + n, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
+			for (i = 0; i < 9; i++)
+				input_report_key(dev + n, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
+			break;
+		case 0x19: /* mission stick x2 (analog 6 axis + buttons) */
+			input_report_abs(dev + n, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
+			input_report_abs(dev + n, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
+			for (i = 0; i < 9; i++)
+				input_report_key(dev + n, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
+			input_report_abs(dev + n, db9_abs[2], data[j + 3]);
+			input_report_abs(dev + n, db9_abs[3], data[j + 4]);
+			input_report_abs(dev + n, db9_abs[4], data[j + 5]);
+			/*
+			input_report_abs(dev + n, db9_abs[8], (data[j + 6] & 128 ? 0 : 1) - (data[j + 6] & 64 ? 0 : 1));
+			input_report_abs(dev + n, db9_abs[9], (data[j + 6] & 32 ? 0 : 1) - (data[j + 6] & 16 ? 0 : 1));
+			*/
+			input_report_abs(dev + n, db9_abs[6], data[j + 7]);
+			input_report_abs(dev + n, db9_abs[7], data[j + 8]);
+			input_report_abs(dev + n, db9_abs[5], data[j + 9]);
+			break;
+		case 0xd3: /* sankyo ff (analog 1 axis + stop btn) */
+			input_report_key(dev + n, BTN_A, data[j + 3] & 0x80);
+			input_report_abs(dev + n, db9_abs[2], data[j + 3] & 0x7f);
+			break;
+		case 0xe3: /* shuttle mouse (analog 2 axis + buttons. signed value) */
+			input_report_key(dev + n, BTN_START, data[j + 1] & 0x08);
+			input_report_key(dev + n, BTN_A, data[j + 1] & 0x04);
+			input_report_key(dev + n, BTN_C, data[j + 1] & 0x02);
+			input_report_key(dev + n, BTN_B, data[j + 1] & 0x01);
+			input_report_abs(dev + n, db9_abs[2], data[j + 2] ^ 0x80);
+			input_report_abs(dev + n, db9_abs[3], (0xff-(data[j + 3] ^ 0x80))+1); /* */
+			break;
+		case 0xff:
+		default: /* no pad */
+			input_report_abs(dev + n, db9_abs[0], 0);
+			input_report_abs(dev + n, db9_abs[1], 0);
+			for (i = 0; i < 9; i++)
+				input_report_key(dev + n, db9_cd32_btn[i], 0);
+			break;
+		}
+	}
+	return n;
+}
+
+static int db9_saturn(int mode, struct parport *port, struct input_dev *dev)
+{
+	unsigned char id, data[60];
+	int type, n, max_pads;
+	int tmp, i;
+
+	switch (mode) {
+	case DB9_SATURN_PAD:
+		type = 0;
+		n = 1;
+		break;
+	case DB9_SATURN_DPP:
+		type = 1;
+		n = 1;
+		break;
+	case DB9_SATURN_DPP_2:
+		type = 1;
+		n = 2;
+		break;
+	default:
+		return -1;
+	}
+	max_pads = min(db9_max_pads[mode], DB9_MAX_DEVICES);
+	for (tmp = 0, i = 0; i < n; i++) {
+		id = db9_saturn_read_packet(port, data, type + i, 1);
+		tmp = db9_saturn_report(id, data, dev, tmp, max_pads);
+	}
+	return 0;
+}
+
+static void db9_timer(unsigned long private)
+{
+	struct db9 *db9 = (void *) private;
+	struct parport *port = db9->pd->port;
+	struct input_dev *dev = db9->dev;
+	int data, i;
+
+	switch(db9->mode) {
+		case DB9_MULTI_0802_2:
+
+			data = parport_read_data(port) >> 3;
+
+			input_report_abs(dev + 1, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+			input_report_abs(dev + 1, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
+			input_report_key(dev + 1, BTN_TRIGGER, ~data & DB9_FIRE1);
+
+		case DB9_MULTI_0802:
+
+			data = parport_read_status(port) >> 3;
+
+			input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+			input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
+			input_report_key(dev, BTN_TRIGGER, data & DB9_FIRE1);
+			break;
+
+		case DB9_MULTI_STICK:
+
+			data = parport_read_data(port);
+
+			input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+			input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
+			input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
+			break;
+
+		case DB9_MULTI2_STICK:
+
+			data = parport_read_data(port);
+
+			input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+			input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
+			input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
+			input_report_key(dev, BTN_THUMB,   ~data & DB9_FIRE2);
+			break;
+
+		case DB9_GENESIS_PAD:
+
+			parport_write_control(port, DB9_NOSELECT);
+			data = parport_read_data(port);
+
+			input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+			input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
+			input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
+			input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
+
+			parport_write_control(port, DB9_NORMAL);
+			data=parport_read_data(port);
+
+			input_report_key(dev, BTN_A,     ~data & DB9_FIRE1);
+			input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
+			break;
+
+		case DB9_GENESIS5_PAD:
+
+			parport_write_control(port, DB9_NOSELECT);
+			data=parport_read_data(port);
+
+			input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+			input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
+			input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
+			input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
+
+			parport_write_control(port, DB9_NORMAL);
+			data=parport_read_data(port);
+
+			input_report_key(dev, BTN_A,     ~data & DB9_FIRE1);
+			input_report_key(dev, BTN_X,     ~data & DB9_FIRE2);
+			input_report_key(dev, BTN_Y,     ~data & DB9_LEFT);
+			input_report_key(dev, BTN_START, ~data & DB9_RIGHT);
+			break;
+
+		case DB9_GENESIS6_PAD:
+
+			parport_write_control(port, DB9_NOSELECT); /* 1 */
+			udelay(DB9_GENESIS6_DELAY);
+			data=parport_read_data(port);
+
+			input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+			input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
+			input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
+			input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
+
+			parport_write_control(port, DB9_NORMAL);
+			udelay(DB9_GENESIS6_DELAY);
+			data=parport_read_data(port);
+
+			input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
+			input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
+
+			parport_write_control(port, DB9_NOSELECT); /* 2 */
+			udelay(DB9_GENESIS6_DELAY);
+			parport_write_control(port, DB9_NORMAL);
+			udelay(DB9_GENESIS6_DELAY);
+			parport_write_control(port, DB9_NOSELECT); /* 3 */
+			udelay(DB9_GENESIS6_DELAY);
+			data=parport_read_data(port);
+
+			input_report_key(dev, BTN_X,    ~data & DB9_LEFT);
+			input_report_key(dev, BTN_Y,    ~data & DB9_DOWN);
+			input_report_key(dev, BTN_Z,    ~data & DB9_UP);
+			input_report_key(dev, BTN_MODE, ~data & DB9_RIGHT);
+
+			parport_write_control(port, DB9_NORMAL);
+			udelay(DB9_GENESIS6_DELAY);
+			parport_write_control(port, DB9_NOSELECT); /* 4 */
+			udelay(DB9_GENESIS6_DELAY);
+			parport_write_control(port, DB9_NORMAL);
+			break;
+
+		case DB9_SATURN_PAD:
+		case DB9_SATURN_DPP:
+		case DB9_SATURN_DPP_2:
+
+			db9_saturn(db9->mode, port, dev);
+			break;
+
+		case DB9_CD32_PAD:
+
+			data=parport_read_data(port);
+
+			input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+			input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
+
+			parport_write_control(port, 0x0a);
+
+			for (i = 0; i < 7; i++) {
+				data = parport_read_data(port);
+				parport_write_control(port, 0x02);
+				parport_write_control(port, 0x0a);
+				input_report_key(dev, db9_cd32_btn[i], ~data & DB9_FIRE2);
+				}
+
+			parport_write_control(port, 0x00);
+			break;
+		}
+
+	input_sync(dev);
+
+	mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
+}
+
+static int db9_open(struct input_dev *dev)
+{
+	struct db9 *db9 = dev->private;
+	struct parport *port = db9->pd->port;
+
+	if (!db9->used++) {
+		parport_claim(db9->pd);
+		parport_write_data(port, 0xff);
+		if (db9_reverse[db9->mode]) {
+			parport_data_reverse(port);
+			parport_write_control(port, DB9_NORMAL);
+		}
+		mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
+	}
+
+	return 0;
+}
+
+static void db9_close(struct input_dev *dev)
+{
+	struct db9 *db9 = dev->private;
+	struct parport *port = db9->pd->port;
+
+	if (!--db9->used) {
+		del_timer(&db9->timer);
+		parport_write_control(port, 0x00);
+		parport_data_forward(port);
+		parport_release(db9->pd);
+	}
+}
+
+static struct db9 __init *db9_probe(int *config, int nargs)
+{
+	struct db9 *db9;
+	struct parport *pp;
+	int i, j;
+
+	if (config[0] < 0)
+		return NULL;
+
+	if (nargs < 2) {
+		printk(KERN_ERR "db9.c: Device type must be specified.\n");
+		return NULL;
+	}
+
+	if (config[1] < 1 || config[1] >= DB9_MAX_PAD || !db9_buttons[config[1]]) {
+		printk(KERN_ERR "db9.c: bad config\n");
+		return NULL;
+	}
+
+	pp = parport_find_number(config[0]);
+	if (!pp) {
+		printk(KERN_ERR "db9.c: no such parport\n");
+		return NULL;
+	}
+
+	if (db9_bidirectional[config[1]]) {
+		if (!(pp->modes & PARPORT_MODE_TRISTATE)) {
+			printk(KERN_ERR "db9.c: specified parport is not bidirectional\n");
+			parport_put_port(pp);
+			return NULL;
+		}
+	}
+
+	if (!(db9 = kmalloc(sizeof(struct db9), GFP_KERNEL))) {
+		parport_put_port(pp);
+		return NULL;
+	}
+	memset(db9, 0, sizeof(struct db9));
+
+	db9->mode = config[1];
+	init_timer(&db9->timer);
+	db9->timer.data = (long) db9;
+	db9->timer.function = db9_timer;
+
+	db9->pd = parport_register_device(pp, "db9", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
+	parport_put_port(pp);
+
+	if (!db9->pd) {
+		printk(KERN_ERR "db9.c: parport busy already - lp.o loaded?\n");
+		kfree(db9);
+		return NULL;
+	}
+
+	for (i = 0; i < (min(db9_max_pads[db9->mode], DB9_MAX_DEVICES)); i++) {
+
+		sprintf(db9->phys[i], "%s/input%d", db9->pd->port->name, i);
+
+		db9->dev[i].private = db9;
+		db9->dev[i].open = db9_open;
+		db9->dev[i].close = db9_close;
+
+		db9->dev[i].name = db9_name[db9->mode];
+		db9->dev[i].phys = db9->phys[i];
+		db9->dev[i].id.bustype = BUS_PARPORT;
+		db9->dev[i].id.vendor = 0x0002;
+		db9->dev[i].id.product = config[1];
+		db9->dev[i].id.version = 0x0100;
+
+		db9->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+		for (j = 0; j < db9_buttons[db9->mode]; j++)
+			set_bit(db9_btn[db9->mode][j], db9->dev[i].keybit);
+		for (j = 0; j < db9_num_axis[db9->mode]; j++) {
+			set_bit(db9_abs[j], db9->dev[i].absbit);
+			if (j < 2) {
+				db9->dev[i].absmin[db9_abs[j]] = -1;
+				db9->dev[i].absmax[db9_abs[j]] = 1;
+			} else {
+				db9->dev[i].absmin[db9_abs[j]] = 1;
+				db9->dev[i].absmax[db9_abs[j]] = 255;
+				db9->dev[i].absflat[db9_abs[j]] = 0;
+			}
+		}
+		input_register_device(db9->dev + i);
+		printk(KERN_INFO "input: %s on %s\n", db9->dev[i].name, db9->pd->port->name);
+	}
+
+	return db9;
+}
+
+static int __init db9_init(void)
+{
+	db9_base[0] = db9_probe(db9, db9_nargs);
+	db9_base[1] = db9_probe(db9_2, db9_nargs_2);
+	db9_base[2] = db9_probe(db9_3, db9_nargs_3);
+
+	if (db9_base[0] || db9_base[1] || db9_base[2])
+		return 0;
+
+	return -ENODEV;
+}
+
+static void __exit db9_exit(void)
+{
+	int i, j;
+
+	for (i = 0; i < 3; i++)
+		if (db9_base[i]) {
+			for (j = 0; j < min(db9_max_pads[db9_base[i]->mode], DB9_MAX_DEVICES); j++)
+				input_unregister_device(db9_base[i]->dev + j);
+		parport_unregister_device(db9_base[i]->pd);
+	}
+}
+
+module_init(db9_init);
+module_exit(db9_exit);