1 files changed, 248 insertions, 0 deletions

diff --git a/drivers/input/joystick/warrior.c b/drivers/input/joystick/warrior.c
new file mode 100644
index 000000000000..6976a219504c
--- /dev/null
+++ b/drivers/input/joystick/warrior.c
@@ -0,0 +1,248 @@
+/*
+ * $Id: warrior.c,v 1.14 2002/01/22 20:32:10 vojtech Exp $
+ *
+ *  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 };
+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];
+        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 pt_regs *regs)
+{
+        struct input_dev *dev = &warrior->dev;
+        unsigned char *data = warrior->data;
+
+        if (!warrior->idx) return;
+
+        input_regs(dev, regs);
+
+        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 pt_regs *regs)
+{
+        struct warrior *warrior = serio_get_drvdata(serio);
+
+        if (data & 0x80) {
+                if (warrior->idx) warrior_process_packet(warrior, regs);
+                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, regs);
+                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);
+
+        input_unregister_device(&warrior->dev);
+        serio_close(serio);
+        serio_set_drvdata(serio, NULL);
+        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;
+        int i;
+        int err;
+
+        if (!(warrior = kmalloc(sizeof(struct warrior), GFP_KERNEL)))
+                return -ENOMEM;
+
+        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);
+
+        sprintf(warrior->phys, "%s/input0", serio->phys);
+
+        init_input_dev(&warrior->dev);
+        warrior->dev.name = warrior_name;
+        warrior->dev.phys = warrior->phys;
+        warrior->dev.id.bustype = BUS_RS232;
+        warrior->dev.id.vendor = SERIO_WARRIOR;
+        warrior->dev.id.product = 0x0001;
+        warrior->dev.id.version = 0x0100;
+        warrior->dev.dev = &serio->dev;
+
+        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_set_drvdata(serio, warrior);
+
+        err = serio_open(serio, drv);
+        if (err) {
+                serio_set_drvdata(serio, NULL);
+                kfree(warrior);
+                return err;
+        }
+
+        input_register_device(&warrior->dev);
+
+        printk(KERN_INFO "input: Logitech WingMan Warrior on %s\n", serio->phys);
+
+        return 0;
+}
+
+/*
+ * 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)
+{
+        serio_register_driver(&warrior_drv);
+        return 0;
+}
+
+static void __exit warrior_exit(void)
+{
+        serio_unregister_driver(&warrior_drv);
+}
+
+module_init(warrior_init);
+module_exit(warrior_exit);