diff options
Diffstat (limited to 'drivers/input/joystick/warrior.c')
| -rw-r--r-- | drivers/input/joystick/warrior.c | 248 |
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); |