11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 2001 Arndt Schoenewald 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 2000-2001 Vojtech Pavlik 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 2000 Mark Fletcher 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Sponsored by Quelltext AG (http://www.quelltext-ag.de), Dortmund, Germany 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Driver to use Handykey's Twiddler (the first edition, i.e. the one with 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the RS232 interface) as a joystick under Linux 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The Twiddler is a one-handed chording keyboard featuring twelve buttons on 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the front, six buttons on the top, and a built-in tilt sensor. The buttons 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * on the front, which are grouped as four rows of three buttons, are pressed 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * by the four fingers (this implies only one button per row can be held down 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * at the same time) and the buttons on the top are for the thumb. The tilt 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * sensor delivers X and Y axis data depending on how the Twiddler is held. 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Additional information can be found at http://www.handykey.com. 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This driver does not use the Twiddler for its intended purpose, i.e. as 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * a chording keyboard, but as a joystick: pressing and releasing a button 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * immediately sends a corresponding button event, and tilting it generates 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * corresponding ABS_X and ABS_Y events. This turns the Twiddler into a game 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * controller with amazing 18 buttons :-) 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Note: The Twiddler2 (the successor of the Twiddler that connects directly 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to the PS/2 keyboard and mouse ports) is NOT supported by this driver! 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * For questions or feedback regarding this driver module please contact: 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Arndt Schoenewald <arndt@quelltext.com> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it under the terms of the GNU General Public License as published by 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (at your option) any later version. 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is distributed in the hope that it will be useful, 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * GNU General Public License for more details. 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * You should have received a copy of the GNU General Public License 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * along with this program; if not, write to the Free Software 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/input.h> 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/serio.h> 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DRIVER_DESC "Handykey Twiddler keyboard as a joystick driver" 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION(DRIVER_DESC); 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Constants. 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define TWIDJOY_MAX_LENGTH 5 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct twidjoy_button_spec { 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int bitshift; 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int bitmask; 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int buttons[3]; 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldstwidjoy_buttons[] = { 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0, 3, { BTN_A, BTN_B, BTN_C } }, 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 2, 3, { BTN_X, BTN_Y, BTN_Z } }, 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 4, 3, { BTN_TL, BTN_TR, BTN_TR2 } }, 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 6, 3, { BTN_SELECT, BTN_START, BTN_MODE } }, 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 8, 1, { BTN_BASE5 } }, 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 9, 1, { BTN_BASE } }, 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 10, 1, { BTN_BASE3 } }, 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 11, 1, { BTN_BASE4 } }, 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 12, 1, { BTN_BASE2 } }, 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 13, 1, { BTN_BASE6 } }, 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0, 0, { 0 } } 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Per-Twiddler data. 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct twidjoy { 9217dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov struct input_dev *dev; 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int idx; 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char data[TWIDJOY_MAX_LENGTH]; 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char phys[32]; 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * twidjoy_process_packet() decodes packets the driver receives from the 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Twiddler. It updates the data accordingly. 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1037d12e780e003f93433d49ce78cfedf4b4c52adc5David Howellsstatic void twidjoy_process_packet(struct twidjoy *twidjoy) 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 10517dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov struct input_dev *dev = twidjoy->dev; 10617dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov unsigned char *data = twidjoy->data; 10717dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov struct twidjoy_button_spec *bp; 10817dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov int button_bits, abs_x, abs_y; 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11017dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov button_bits = ((data[1] & 0x7f) << 7) | (data[0] & 0x7f); 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11217dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov for (bp = twidjoy_buttons; bp->bitmask; bp++) { 11317dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov int value = (button_bits & (bp->bitmask << bp->bitshift)) >> bp->bitshift; 11417dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov int i; 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11617dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov for (i = 0; i < bp->bitmask; i++) 11717dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_report_key(dev, bp->buttons[i], i+1 == value); 11817dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov } 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12017dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov abs_x = ((data[4] & 0x07) << 5) | ((data[3] & 0x7C) >> 2); 12117dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov if (data[4] & 0x08) abs_x -= 256; 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12317dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov abs_y = ((data[3] & 0x01) << 7) | ((data[2] & 0x7F) >> 0); 12417dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov if (data[3] & 0x02) abs_y -= 256; 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12617dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_report_abs(dev, ABS_X, -abs_x); 12717dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_report_abs(dev, ABS_Y, +abs_y); 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12917dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_sync(dev); 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * twidjoy_interrupt() is called by the low level driver when characters 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * are ready for us. We then buffer them for further processing, or call the 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * packet processing routine. 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1387d12e780e003f93433d49ce78cfedf4b4c52adc5David Howellsstatic irqreturn_t twidjoy_interrupt(struct serio *serio, unsigned char data, unsigned int flags) 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct twidjoy *twidjoy = serio_get_drvdata(serio); 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* All Twiddler packets are 5 bytes. The fact that the first byte 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * has a MSB of 0 and all other bytes have a MSB of 1 can be used 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to check and regain sync. */ 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((data & 0x80) == 0) 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds twidjoy->idx = 0; /* this byte starts a new packet */ 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else if (twidjoy->idx == 0) 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return IRQ_HANDLED; /* wrong MSB -- ignore this byte */ 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (twidjoy->idx < TWIDJOY_MAX_LENGTH) 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds twidjoy->data[twidjoy->idx++] = data; 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (twidjoy->idx == TWIDJOY_MAX_LENGTH) { 1557d12e780e003f93433d49ce78cfedf4b4c52adc5David Howells twidjoy_process_packet(twidjoy); 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds twidjoy->idx = 0; 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return IRQ_HANDLED; 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * twidjoy_disconnect() is the opposite of twidjoy_connect() 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void twidjoy_disconnect(struct serio *serio) 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct twidjoy *twidjoy = serio_get_drvdata(serio); 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds serio_close(serio); 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds serio_set_drvdata(serio, NULL); 17217dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_unregister_device(twidjoy->dev); 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(twidjoy); 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * twidjoy_connect() is the routine that is called when someone adds a 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * new serio device. It looks for the Twiddler, and if found, registers 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it as an input device. 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int twidjoy_connect(struct serio *serio, struct serio_driver *drv) 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct twidjoy_button_spec *bp; 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct twidjoy *twidjoy; 18617dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov struct input_dev *input_dev; 18717dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov int err = -ENOMEM; 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19017dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov twidjoy = kzalloc(sizeof(struct twidjoy), GFP_KERNEL); 19117dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_dev = input_allocate_device(); 19217dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov if (!twidjoy || !input_dev) 193127278ce2254c61f1346500374d61e33f74a8729Dmitry Torokhov goto fail1; 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19517dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov twidjoy->dev = input_dev; 19610ca4c0a622a942e55dc8a6d57ebd441089c9e38Dmitry Torokhov snprintf(twidjoy->phys, sizeof(twidjoy->phys), "%s/input0", serio->phys); 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19817dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_dev->name = "Handykey Twiddler"; 19917dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_dev->phys = twidjoy->phys; 20017dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_dev->id.bustype = BUS_RS232; 20117dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_dev->id.vendor = SERIO_TWIDJOY; 20217dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_dev->id.product = 0x0001; 20317dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_dev->id.version = 0x0100; 204935e658e89678a7e3427b90cd7a1c86025d95bfeDmitry Torokhov input_dev->dev.parent = &serio->dev; 20517dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov 2067b19ada2ed3c1eccb9fe94d74b05e1428224663dJiri Slaby input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); 20717dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_set_abs_params(input_dev, ABS_X, -50, 50, 4, 4); 20817dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_set_abs_params(input_dev, ABS_Y, -50, 50, 4, 4); 20917dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov 21017dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov for (bp = twidjoy_buttons; bp->bitmask; bp++) 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < bp->bitmask; i++) 21217dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov set_bit(bp->buttons[i], input_dev->keybit); 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds serio_set_drvdata(serio, twidjoy); 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = serio_open(serio, drv); 21717dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov if (err) 218127278ce2254c61f1346500374d61e33f74a8729Dmitry Torokhov goto fail2; 219127278ce2254c61f1346500374d61e33f74a8729Dmitry Torokhov 220127278ce2254c61f1346500374d61e33f74a8729Dmitry Torokhov err = input_register_device(twidjoy->dev); 221127278ce2254c61f1346500374d61e33f74a8729Dmitry Torokhov if (err) 222127278ce2254c61f1346500374d61e33f74a8729Dmitry Torokhov goto fail3; 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 22517dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov 226127278ce2254c61f1346500374d61e33f74a8729Dmitry Torokhov fail3: serio_close(serio); 227127278ce2254c61f1346500374d61e33f74a8729Dmitry Torokhov fail2: serio_set_drvdata(serio, NULL); 228127278ce2254c61f1346500374d61e33f74a8729Dmitry Torokhov fail1: input_free_device(input_dev); 22917dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov kfree(twidjoy); 23017dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov return err; 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The serio driver structure. 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct serio_device_id twidjoy_serio_ids[] = { 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .type = SERIO_RS232, 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .proto = SERIO_TWIDJOY, 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .id = SERIO_ANY, 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .extra = SERIO_ANY, 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }, 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds { 0 } 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DEVICE_TABLE(serio, twidjoy_serio_ids); 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct serio_driver twidjoy_drv = { 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .driver = { 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "twidjoy", 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }, 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .description = DRIVER_DESC, 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .id_table = twidjoy_serio_ids, 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .interrupt = twidjoy_interrupt, 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .connect = twidjoy_connect, 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .disconnect = twidjoy_disconnect, 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The functions for inserting/removing us as a module. 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 264ffc6b529e8c46c73827008c7406f43482d71beedAdrian Bunkstatic int __init twidjoy_init(void) 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 266153a9df01c0d1ecdc56161c7a0f830325145dd64Akinobu Mita return serio_register_driver(&twidjoy_drv); 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 269ffc6b529e8c46c73827008c7406f43482d71beedAdrian Bunkstatic void __exit twidjoy_exit(void) 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds serio_unregister_driver(&twidjoy_drv); 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(twidjoy_init); 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(twidjoy_exit); 276