patch-2.4.0-test2 linux/drivers/char/joystick/warrior.c

• Lines: 213
• Date: Wed Jun 21 08:22:21 2000
• Orig file: v2.4.0-test1/linux/drivers/char/joystick/warrior.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.0-test1/linux/drivers/char/joystick/warrior.c linux/drivers/char/joystick/warrior.c
@@ -0,0 +1,212 @@
+/*
+ * $Id: warrior.c,v 1.8 2000/05/31 13:17:12 vojtech Exp $
+ *
+ *  Copyright (c) 1999-2000 Vojtech Pavlik
+ *
+ *  Sponsored by SuSE
+ */
+
+/*
+ * 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, Ucitelska 1576, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/malloc.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+/*
+ * Constants.
+ */
+
+#define WARRIOR_MAX_LENGTH	16
+static char warrior_lengths[] = { 0, 4, 12, 3, 4, 4, 0, 0 }; 
+static char *warrior_name = "Logitech WingMan Warrior";
+
+/*
+ * Per-Warrior data.
+ */
+
+struct warrior {
+	struct input_dev dev;
+	int idx, len;
+	unsigned char data[WARRIOR_MAX_LENGTH];
+};
+
+/*
+ * 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);
+			return;
+		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));
+			return;
+		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));
+			return;
+	}
+}
+
+/*
+ * 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 void warrior_interrupt(struct serio *serio, unsigned char data, unsigned int flags)
+{
+	struct warrior* warrior = serio->private;
+
+	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;
+	}
+}
+
+/*
+ * warrior_disconnect() is the opposite of warrior_connect()
+ */
+
+static void warrior_disconnect(struct serio *serio)
+{
+	struct warrior* warrior = serio->private;
+	input_unregister_device(&warrior->dev);
+	serio_close(serio);
+	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 void warrior_connect(struct serio *serio, struct serio_dev *dev)
+{
+	struct warrior *warrior;
+	int i;
+
+	if (serio->type != (SERIO_RS232 | SERIO_WARRIOR))
+		return;
+
+	if (!(warrior = kmalloc(sizeof(struct warrior), GFP_KERNEL)))
+		return;
+
+	memset(warrior, 0, sizeof(struct warrior));
+
+	warrior->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REL) | BIT(EV_ABS);	
+	warrior->dev.keybit[LONG(BTN_TRIGGER)] = BIT(BTN_TRIGGER) | BIT(BTN_THUMB) | BIT(BTN_TOP) | BIT(BTN_TOP2);
+	warrior->dev.relbit[0] = BIT(REL_DIAL);
+	warrior->dev.absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_THROTTLE) | BIT(ABS_HAT0X) | BIT(ABS_HAT0Y);
+
+	warrior->dev.name = warrior_name;
+	warrior->dev.idbus = BUS_RS232;
+	warrior->dev.idvendor = SERIO_WARRIOR;
+	warrior->dev.idproduct = 0x0001;
+	warrior->dev.idversion = 0x0100;
+
+	for (i = 0; i < 2; i++) {
+		warrior->dev.absmax[ABS_X+i] = -64;	
+		warrior->dev.absmin[ABS_X+i] =  64;	
+		warrior->dev.absflat[ABS_X+i] = 8;	
+	}
+
+	warrior->dev.absmax[ABS_THROTTLE] = -112;	
+	warrior->dev.absmin[ABS_THROTTLE] =  112;	
+
+	for (i = 0; i < 2; i++) {
+		warrior->dev.absmax[ABS_HAT0X+i] = -1;	
+		warrior->dev.absmin[ABS_HAT0X+i] =  1;	
+	}
+
+	warrior->dev.private = warrior;
+	
+	serio->private = warrior;
+
+	if (serio_open(serio, dev)) {
+		kfree(warrior);
+		return;
+	}
+
+	input_register_device(&warrior->dev);
+
+	printk(KERN_INFO "input%d: Logitech WingMan Warrior on serio%d\n", warrior->dev.number, serio->number);
+}
+
+/*
+ * The serio device structure.
+ */
+
+static struct serio_dev warrior_dev = {
+	interrupt:	warrior_interrupt,
+	connect:	warrior_connect,
+	disconnect:	warrior_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+int __init warrior_init(void)
+{
+	serio_register_device(&warrior_dev);
+	return 0;
+}
+
+void __exit warrior_exit(void)
+{
+	serio_unregister_device(&warrior_dev);
+}
+
+module_init(warrior_init);
+module_exit(warrior_exit);