11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * $Id: warrior.c,v 1.14 2002/01/22 20:32:10 vojtech Exp $ 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Copyright (c) 1999-2001 Vojtech Pavlik 51da177e4SLinus Torvalds */ 61da177e4SLinus Torvalds 71da177e4SLinus Torvalds /* 81da177e4SLinus Torvalds * Logitech WingMan Warrior joystick driver for Linux 91da177e4SLinus Torvalds */ 101da177e4SLinus Torvalds 111da177e4SLinus Torvalds /* 121da177e4SLinus Torvalds * This program is free warftware; you can redistribute it and/or modify 131da177e4SLinus Torvalds * it under the terms of the GNU General Public License as published by 141da177e4SLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 151da177e4SLinus Torvalds * (at your option) any later version. 161da177e4SLinus Torvalds * 171da177e4SLinus Torvalds * This program is distributed in the hope that it will be useful, 181da177e4SLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 191da177e4SLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 201da177e4SLinus Torvalds * GNU General Public License for more details. 211da177e4SLinus Torvalds * 221da177e4SLinus Torvalds * You should have received a copy of the GNU General Public License 231da177e4SLinus Torvalds * along with this program; if not, write to the Free Software 241da177e4SLinus Torvalds * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 251da177e4SLinus Torvalds * 261da177e4SLinus Torvalds * Should you need to contact me, the author, you can do so either by 271da177e4SLinus Torvalds * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: 281da177e4SLinus Torvalds * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic 291da177e4SLinus Torvalds */ 301da177e4SLinus Torvalds 311da177e4SLinus Torvalds #include <linux/kernel.h> 321da177e4SLinus Torvalds #include <linux/module.h> 331da177e4SLinus Torvalds #include <linux/slab.h> 341da177e4SLinus Torvalds #include <linux/input.h> 351da177e4SLinus Torvalds #include <linux/serio.h> 361da177e4SLinus Torvalds #include <linux/init.h> 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds #define DRIVER_DESC "Logitech WingMan Warrior joystick driver" 391da177e4SLinus Torvalds 401da177e4SLinus Torvalds MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); 411da177e4SLinus Torvalds MODULE_DESCRIPTION(DRIVER_DESC); 421da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 431da177e4SLinus Torvalds 441da177e4SLinus Torvalds /* 451da177e4SLinus Torvalds * Constants. 461da177e4SLinus Torvalds */ 471da177e4SLinus Torvalds 481da177e4SLinus Torvalds #define WARRIOR_MAX_LENGTH 16 491da177e4SLinus Torvalds static char warrior_lengths[] = { 0, 4, 12, 3, 4, 4, 0, 0 }; 501da177e4SLinus Torvalds 511da177e4SLinus Torvalds /* 521da177e4SLinus Torvalds * Per-Warrior data. 531da177e4SLinus Torvalds */ 541da177e4SLinus Torvalds 551da177e4SLinus Torvalds struct warrior { 5617dd3f0fSDmitry Torokhov struct input_dev *dev; 571da177e4SLinus Torvalds int idx, len; 581da177e4SLinus Torvalds unsigned char data[WARRIOR_MAX_LENGTH]; 591da177e4SLinus Torvalds char phys[32]; 601da177e4SLinus Torvalds }; 611da177e4SLinus Torvalds 621da177e4SLinus Torvalds /* 631da177e4SLinus Torvalds * warrior_process_packet() decodes packets the driver receives from the 641da177e4SLinus Torvalds * Warrior. It updates the data accordingly. 651da177e4SLinus Torvalds */ 661da177e4SLinus Torvalds 677d12e780SDavid Howells static void warrior_process_packet(struct warrior *warrior) 681da177e4SLinus Torvalds { 6917dd3f0fSDmitry Torokhov struct input_dev *dev = warrior->dev; 701da177e4SLinus Torvalds unsigned char *data = warrior->data; 711da177e4SLinus Torvalds 721da177e4SLinus Torvalds if (!warrior->idx) return; 731da177e4SLinus Torvalds 741da177e4SLinus Torvalds switch ((data[0] >> 4) & 7) { 751da177e4SLinus Torvalds case 1: /* Button data */ 761da177e4SLinus Torvalds input_report_key(dev, BTN_TRIGGER, data[3] & 1); 771da177e4SLinus Torvalds input_report_key(dev, BTN_THUMB, (data[3] >> 1) & 1); 781da177e4SLinus Torvalds input_report_key(dev, BTN_TOP, (data[3] >> 2) & 1); 791da177e4SLinus Torvalds input_report_key(dev, BTN_TOP2, (data[3] >> 3) & 1); 801da177e4SLinus Torvalds break; 811da177e4SLinus Torvalds case 3: /* XY-axis info->data */ 821da177e4SLinus Torvalds input_report_abs(dev, ABS_X, ((data[0] & 8) << 5) - (data[2] | ((data[0] & 4) << 5))); 831da177e4SLinus Torvalds input_report_abs(dev, ABS_Y, (data[1] | ((data[0] & 1) << 7)) - ((data[0] & 2) << 7)); 841da177e4SLinus Torvalds break; 851da177e4SLinus Torvalds case 5: /* Throttle, spinner, hat info->data */ 861da177e4SLinus Torvalds input_report_abs(dev, ABS_THROTTLE, (data[1] | ((data[0] & 1) << 7)) - ((data[0] & 2) << 7)); 871da177e4SLinus Torvalds input_report_abs(dev, ABS_HAT0X, (data[3] & 2 ? 1 : 0) - (data[3] & 1 ? 1 : 0)); 881da177e4SLinus Torvalds input_report_abs(dev, ABS_HAT0Y, (data[3] & 8 ? 1 : 0) - (data[3] & 4 ? 1 : 0)); 891da177e4SLinus Torvalds input_report_rel(dev, REL_DIAL, (data[2] | ((data[0] & 4) << 5)) - ((data[0] & 8) << 5)); 901da177e4SLinus Torvalds break; 911da177e4SLinus Torvalds } 921da177e4SLinus Torvalds input_sync(dev); 931da177e4SLinus Torvalds } 941da177e4SLinus Torvalds 951da177e4SLinus Torvalds /* 961da177e4SLinus Torvalds * warrior_interrupt() is called by the low level driver when characters 971da177e4SLinus Torvalds * are ready for us. We then buffer them for further processing, or call the 981da177e4SLinus Torvalds * packet processing routine. 991da177e4SLinus Torvalds */ 1001da177e4SLinus Torvalds 1011da177e4SLinus Torvalds static irqreturn_t warrior_interrupt(struct serio *serio, 1027d12e780SDavid Howells unsigned char data, unsigned int flags) 1031da177e4SLinus Torvalds { 1041da177e4SLinus Torvalds struct warrior *warrior = serio_get_drvdata(serio); 1051da177e4SLinus Torvalds 1061da177e4SLinus Torvalds if (data & 0x80) { 1077d12e780SDavid Howells if (warrior->idx) warrior_process_packet(warrior); 1081da177e4SLinus Torvalds warrior->idx = 0; 1091da177e4SLinus Torvalds warrior->len = warrior_lengths[(data >> 4) & 7]; 1101da177e4SLinus Torvalds } 1111da177e4SLinus Torvalds 1121da177e4SLinus Torvalds if (warrior->idx < warrior->len) 1131da177e4SLinus Torvalds warrior->data[warrior->idx++] = data; 1141da177e4SLinus Torvalds 1151da177e4SLinus Torvalds if (warrior->idx == warrior->len) { 1167d12e780SDavid Howells if (warrior->idx) warrior_process_packet(warrior); 1171da177e4SLinus Torvalds warrior->idx = 0; 1181da177e4SLinus Torvalds warrior->len = 0; 1191da177e4SLinus Torvalds } 1201da177e4SLinus Torvalds return IRQ_HANDLED; 1211da177e4SLinus Torvalds } 1221da177e4SLinus Torvalds 1231da177e4SLinus Torvalds /* 1241da177e4SLinus Torvalds * warrior_disconnect() is the opposite of warrior_connect() 1251da177e4SLinus Torvalds */ 1261da177e4SLinus Torvalds 1271da177e4SLinus Torvalds static void warrior_disconnect(struct serio *serio) 1281da177e4SLinus Torvalds { 1291da177e4SLinus Torvalds struct warrior *warrior = serio_get_drvdata(serio); 1301da177e4SLinus Torvalds 1311da177e4SLinus Torvalds serio_close(serio); 1321da177e4SLinus Torvalds serio_set_drvdata(serio, NULL); 13317dd3f0fSDmitry Torokhov input_unregister_device(warrior->dev); 1341da177e4SLinus Torvalds kfree(warrior); 1351da177e4SLinus Torvalds } 1361da177e4SLinus Torvalds 1371da177e4SLinus Torvalds /* 1381da177e4SLinus Torvalds * warrior_connect() is the routine that is called when someone adds a 1391da177e4SLinus Torvalds * new serio device. It looks for the Warrior, and if found, registers 1401da177e4SLinus Torvalds * it as an input device. 1411da177e4SLinus Torvalds */ 1421da177e4SLinus Torvalds 1431da177e4SLinus Torvalds static int warrior_connect(struct serio *serio, struct serio_driver *drv) 1441da177e4SLinus Torvalds { 1451da177e4SLinus Torvalds struct warrior *warrior; 14617dd3f0fSDmitry Torokhov struct input_dev *input_dev; 14717dd3f0fSDmitry Torokhov int err = -ENOMEM; 1481da177e4SLinus Torvalds 14917dd3f0fSDmitry Torokhov warrior = kzalloc(sizeof(struct warrior), GFP_KERNEL); 15017dd3f0fSDmitry Torokhov input_dev = input_allocate_device(); 15117dd3f0fSDmitry Torokhov if (!warrior || !input_dev) 152127278ceSDmitry Torokhov goto fail1; 1531da177e4SLinus Torvalds 15417dd3f0fSDmitry Torokhov warrior->dev = input_dev; 15510ca4c0aSDmitry Torokhov snprintf(warrior->phys, sizeof(warrior->phys), "%s/input0", serio->phys); 1561da177e4SLinus Torvalds 15717dd3f0fSDmitry Torokhov input_dev->name = "Logitech WingMan Warrior"; 15817dd3f0fSDmitry Torokhov input_dev->phys = warrior->phys; 15917dd3f0fSDmitry Torokhov input_dev->id.bustype = BUS_RS232; 16017dd3f0fSDmitry Torokhov input_dev->id.vendor = SERIO_WARRIOR; 16117dd3f0fSDmitry Torokhov input_dev->id.product = 0x0001; 16217dd3f0fSDmitry Torokhov input_dev->id.version = 0x0100; 163935e658eSDmitry Torokhov input_dev->dev.parent = &serio->dev; 1641da177e4SLinus Torvalds 16517dd3f0fSDmitry Torokhov input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL) | BIT(EV_ABS); 16617dd3f0fSDmitry Torokhov input_dev->keybit[LONG(BTN_TRIGGER)] = BIT(BTN_TRIGGER) | BIT(BTN_THUMB) | BIT(BTN_TOP) | BIT(BTN_TOP2); 16717dd3f0fSDmitry Torokhov input_dev->relbit[0] = BIT(REL_DIAL); 16817dd3f0fSDmitry Torokhov input_set_abs_params(input_dev, ABS_X, -64, 64, 0, 8); 16917dd3f0fSDmitry Torokhov input_set_abs_params(input_dev, ABS_Y, -64, 64, 0, 8); 17017dd3f0fSDmitry Torokhov input_set_abs_params(input_dev, ABS_THROTTLE, -112, 112, 0, 0); 17117dd3f0fSDmitry Torokhov input_set_abs_params(input_dev, ABS_HAT0X, -1, 1, 0, 0); 172ae5536d6SDmitry Torokhov input_set_abs_params(input_dev, ABS_HAT0Y, -1, 1, 0, 0); 1731da177e4SLinus Torvalds 1741da177e4SLinus Torvalds serio_set_drvdata(serio, warrior); 1751da177e4SLinus Torvalds 1761da177e4SLinus Torvalds err = serio_open(serio, drv); 17717dd3f0fSDmitry Torokhov if (err) 178127278ceSDmitry Torokhov goto fail2; 17917dd3f0fSDmitry Torokhov 180127278ceSDmitry Torokhov err = input_register_device(warrior->dev); 181127278ceSDmitry Torokhov if (err) 182127278ceSDmitry Torokhov goto fail3; 183127278ceSDmitry Torokhov 18417dd3f0fSDmitry Torokhov return 0; 18517dd3f0fSDmitry Torokhov 186127278ceSDmitry Torokhov fail3: serio_close(serio); 187127278ceSDmitry Torokhov fail2: serio_set_drvdata(serio, NULL); 188127278ceSDmitry Torokhov fail1: input_free_device(input_dev); 1891da177e4SLinus Torvalds kfree(warrior); 1901da177e4SLinus Torvalds return err; 1911da177e4SLinus Torvalds } 1921da177e4SLinus Torvalds 1931da177e4SLinus Torvalds /* 1941da177e4SLinus Torvalds * The serio driver structure. 1951da177e4SLinus Torvalds */ 1961da177e4SLinus Torvalds 1971da177e4SLinus Torvalds static struct serio_device_id warrior_serio_ids[] = { 1981da177e4SLinus Torvalds { 1991da177e4SLinus Torvalds .type = SERIO_RS232, 2001da177e4SLinus Torvalds .proto = SERIO_WARRIOR, 2011da177e4SLinus Torvalds .id = SERIO_ANY, 2021da177e4SLinus Torvalds .extra = SERIO_ANY, 2031da177e4SLinus Torvalds }, 2041da177e4SLinus Torvalds { 0 } 2051da177e4SLinus Torvalds }; 2061da177e4SLinus Torvalds 2071da177e4SLinus Torvalds MODULE_DEVICE_TABLE(serio, warrior_serio_ids); 2081da177e4SLinus Torvalds 2091da177e4SLinus Torvalds static struct serio_driver warrior_drv = { 2101da177e4SLinus Torvalds .driver = { 2111da177e4SLinus Torvalds .name = "warrior", 2121da177e4SLinus Torvalds }, 2131da177e4SLinus Torvalds .description = DRIVER_DESC, 2141da177e4SLinus Torvalds .id_table = warrior_serio_ids, 2151da177e4SLinus Torvalds .interrupt = warrior_interrupt, 2161da177e4SLinus Torvalds .connect = warrior_connect, 2171da177e4SLinus Torvalds .disconnect = warrior_disconnect, 2181da177e4SLinus Torvalds }; 2191da177e4SLinus Torvalds 2201da177e4SLinus Torvalds /* 2211da177e4SLinus Torvalds * The functions for inserting/removing us as a module. 2221da177e4SLinus Torvalds */ 2231da177e4SLinus Torvalds 2241da177e4SLinus Torvalds static int __init warrior_init(void) 2251da177e4SLinus Torvalds { 226153a9df0SAkinobu Mita return serio_register_driver(&warrior_drv); 2271da177e4SLinus Torvalds } 2281da177e4SLinus Torvalds 2291da177e4SLinus Torvalds static void __exit warrior_exit(void) 2301da177e4SLinus Torvalds { 2311da177e4SLinus Torvalds serio_unregister_driver(&warrior_drv); 2321da177e4SLinus Torvalds } 2331da177e4SLinus Torvalds 2341da177e4SLinus Torvalds module_init(warrior_init); 2351da177e4SLinus Torvalds module_exit(warrior_exit); 236